Exploring the suitability of causal loop diagrams to assess the value chains of aquatic ecosystem services: a case study of the Baviaanskloof, South Africa
- Authors: Rawlins, Jonathan Mark
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/4909 , vital:20742
- Description: Healthy, functioning aquatic ecosystems are fundamental to the survival and development of any nation, particularly so for water-stressed countries like South Africa. Aquatic ecosystem services (AESs) are becoming increasingly recognised for their importance to society with regards to the ecological goods and services they provide in terms of health, social, cultural and economic benefits. The development of markets for AESs begins with a clear understanding of the nature and extent of the goods and services provided by aquatic ecosystems. However, an inclusive understanding of AESs and their associated values is currently lacking in South Africa. Although flows of ecosystem services provide a nearly limitless set of valuable properties, a large proportion of their services remain unpriced or inaccurately priced through traditional neo-classical markets. This often results in market failure, as these markets do not reflect the full social costs and/or benefits of ecosystem services. This provides incentive to identify and develop a tool to bridge the gap between ecosystem service valuation and practical, sustainable management recommendations for improving the provision of ecosystem services and their associated markets. This study explores the suitability of causal loop diagrams (CLDs) to assess the value chains of AESs in South Africa within the context of a case study. AESs do not usually have finite market values nor are they traded in formal markets, thus, a traditional approach to value chain analysis is unsuitable. A professional workshop environment was utilised to facilitate a transdisciplinary approach towards identifying relevant AESs and their complex inputs, interactions and trade-offs. Numerous CLDs were developed in an effort to map the complex relationships between these AESs and their associated inputs, which formed the basis to attempt subsequent scenario analyses and 'alternative' value chain analyses. The findings of this study show that CLDs have the potential to qualitatively identify challenges and opportunities within the value chains of AESs. Thus, the use of such 'alternative' value chain analyses can directly contribute towards the development of recommendations for improving sustainable management of aquatic ecosystems.
- Full Text:
- Date Issued: 2017
- Authors: Rawlins, Jonathan Mark
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/4909 , vital:20742
- Description: Healthy, functioning aquatic ecosystems are fundamental to the survival and development of any nation, particularly so for water-stressed countries like South Africa. Aquatic ecosystem services (AESs) are becoming increasingly recognised for their importance to society with regards to the ecological goods and services they provide in terms of health, social, cultural and economic benefits. The development of markets for AESs begins with a clear understanding of the nature and extent of the goods and services provided by aquatic ecosystems. However, an inclusive understanding of AESs and their associated values is currently lacking in South Africa. Although flows of ecosystem services provide a nearly limitless set of valuable properties, a large proportion of their services remain unpriced or inaccurately priced through traditional neo-classical markets. This often results in market failure, as these markets do not reflect the full social costs and/or benefits of ecosystem services. This provides incentive to identify and develop a tool to bridge the gap between ecosystem service valuation and practical, sustainable management recommendations for improving the provision of ecosystem services and their associated markets. This study explores the suitability of causal loop diagrams (CLDs) to assess the value chains of AESs in South Africa within the context of a case study. AESs do not usually have finite market values nor are they traded in formal markets, thus, a traditional approach to value chain analysis is unsuitable. A professional workshop environment was utilised to facilitate a transdisciplinary approach towards identifying relevant AESs and their complex inputs, interactions and trade-offs. Numerous CLDs were developed in an effort to map the complex relationships between these AESs and their associated inputs, which formed the basis to attempt subsequent scenario analyses and 'alternative' value chain analyses. The findings of this study show that CLDs have the potential to qualitatively identify challenges and opportunities within the value chains of AESs. Thus, the use of such 'alternative' value chain analyses can directly contribute towards the development of recommendations for improving sustainable management of aquatic ecosystems.
- Full Text:
- Date Issued: 2017
Mhlontlo Municipality local economic development strategy as a driver of economic development
- Authors: Zipete, Zwelixolile
- Date: 2017
- Subjects: Economic development -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape Municipal government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13316 , vital:27174
- Description: The main aim of the research study was to review the Mhlontlo Municipality Local Economic Development Strategy as a driver of economic development. The Mhlontlo LED Strategy was developed in 2007 to guide economic development of Mhlontlo Local Municipality. The Constitution of the Republic of South Africa(Act 108 of 1996), the White Paper on Local Government (1998), Section B, the National Framework for LED in South Africa (2006), and other pieces of legislation gave direction in the development of LED Strategies in South# Africa, including the Mhlontlo LED Strategy.
- Full Text:
- Date Issued: 2017
- Authors: Zipete, Zwelixolile
- Date: 2017
- Subjects: Economic development -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape Municipal government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13316 , vital:27174
- Description: The main aim of the research study was to review the Mhlontlo Municipality Local Economic Development Strategy as a driver of economic development. The Mhlontlo LED Strategy was developed in 2007 to guide economic development of Mhlontlo Local Municipality. The Constitution of the Republic of South Africa(Act 108 of 1996), the White Paper on Local Government (1998), Section B, the National Framework for LED in South Africa (2006), and other pieces of legislation gave direction in the development of LED Strategies in South# Africa, including the Mhlontlo LED Strategy.
- Full Text:
- Date Issued: 2017
Red cotton
- Authors: Gantsho, Vangile
- Date: 2017
- Subjects: Creative writing (Higher education) South Africa , South African poetry (English) 21st century , South African poetry (English) Black authors , Lesbians, Black Poetry
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7213 , vital:21229
- Description: My collection of poetry is a deeply personal exploration of what it means to be black, queer, and woman in modern-day South Africa. I interrogate being non-conformist in both a traditional-cultural upbringing and a more liberal yet equally-oppressive urban socialisation. I question what we are taught about the body and the feminine sexual space, while also addressing the mother-daughter relationship as the first and most constant reference of womanhood. The collection moves fluidly between the erotic, the uncomfortable and grotesque, what is painful, and what is beautiful and longed-for. Working promiscuously across forms, I employ prose poetry, interspersed with lyrical interludes, in an attempt at a narrative effect similar to what Claudia Rankine achieves in Don't Let Me Be Lonely. I also draw from writers such as Calixthe Beyala (Your Name Shall Be Tanga), and Janice Lee (Damnation), as well as sex guides, women's blogs, and feminist poetry.
- Full Text:
- Date Issued: 2017
- Authors: Gantsho, Vangile
- Date: 2017
- Subjects: Creative writing (Higher education) South Africa , South African poetry (English) 21st century , South African poetry (English) Black authors , Lesbians, Black Poetry
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7213 , vital:21229
- Description: My collection of poetry is a deeply personal exploration of what it means to be black, queer, and woman in modern-day South Africa. I interrogate being non-conformist in both a traditional-cultural upbringing and a more liberal yet equally-oppressive urban socialisation. I question what we are taught about the body and the feminine sexual space, while also addressing the mother-daughter relationship as the first and most constant reference of womanhood. The collection moves fluidly between the erotic, the uncomfortable and grotesque, what is painful, and what is beautiful and longed-for. Working promiscuously across forms, I employ prose poetry, interspersed with lyrical interludes, in an attempt at a narrative effect similar to what Claudia Rankine achieves in Don't Let Me Be Lonely. I also draw from writers such as Calixthe Beyala (Your Name Shall Be Tanga), and Janice Lee (Damnation), as well as sex guides, women's blogs, and feminist poetry.
- Full Text:
- Date Issued: 2017
The design of municipal council chamber for East London: an exploration of culture and identity in a contested socio-spatial landscape
- Authors: Malefane, Reetumetsi
- Date: 2017
- Subjects: Municipal buildings -- South Africa -- East London -- Designs and plans Architecture -- South Africa -- East London -- Designs and plans , Architecture -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/38761 , vital:34957
- Description: The treatise seeks to explore the notions of African identity and culture in post-apartheid public space through the design of a Municipal Council Chamber for East London on the site of the first hearings of the Truth and Reconciliations Commissions in South Africa. Public space in post-apartheid South Africa is still a contested subject, where histories and identities of culture are not equally represented. The design project seeks to facilitate an inclusion of subjugated narratives of African culture into public spaces through architectural representation of form and cultural practices through programme. A qualitative research methodology is utilised for the study, as the focus for the research is to examine and explore culture and identity through a theoretical lens, based on exploring the existing theory of Jonathon Noble ‘Questions of African Identity: White Skin, Black masks’. The aim is to examine how culture and identity in architecture of post-apartheid South Africa engages with African consciousness through spatial and physical themes to renegotiate identity of public spaces, where subjugated narratives can be equally represented. The treatise provides evidence that within the discourse of culture and architecture in South Africa, architectural hybridity can be used as a mechanism for forging a new identity of an African discourse, facilitated through a dialogue of dominant narratives of colonial rule and subjugated narratives of an African discourse. The study concludes that explorations of African themes in the post-apartheid landscape can contribute and uplift the socio-spatial landscape through presenting new perspectives of identity and culture that reflect the narrative of African identity and culture that has been excluded in these public spaces.
- Full Text:
- Date Issued: 2017
- Authors: Malefane, Reetumetsi
- Date: 2017
- Subjects: Municipal buildings -- South Africa -- East London -- Designs and plans Architecture -- South Africa -- East London -- Designs and plans , Architecture -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/38761 , vital:34957
- Description: The treatise seeks to explore the notions of African identity and culture in post-apartheid public space through the design of a Municipal Council Chamber for East London on the site of the first hearings of the Truth and Reconciliations Commissions in South Africa. Public space in post-apartheid South Africa is still a contested subject, where histories and identities of culture are not equally represented. The design project seeks to facilitate an inclusion of subjugated narratives of African culture into public spaces through architectural representation of form and cultural practices through programme. A qualitative research methodology is utilised for the study, as the focus for the research is to examine and explore culture and identity through a theoretical lens, based on exploring the existing theory of Jonathon Noble ‘Questions of African Identity: White Skin, Black masks’. The aim is to examine how culture and identity in architecture of post-apartheid South Africa engages with African consciousness through spatial and physical themes to renegotiate identity of public spaces, where subjugated narratives can be equally represented. The treatise provides evidence that within the discourse of culture and architecture in South Africa, architectural hybridity can be used as a mechanism for forging a new identity of an African discourse, facilitated through a dialogue of dominant narratives of colonial rule and subjugated narratives of an African discourse. The study concludes that explorations of African themes in the post-apartheid landscape can contribute and uplift the socio-spatial landscape through presenting new perspectives of identity and culture that reflect the narrative of African identity and culture that has been excluded in these public spaces.
- Full Text:
- Date Issued: 2017
Experiential learning in an undergraduate BPHARM programme: impact of an intervention on academic achievement
- Authors: McCartney, Jane Alison
- Date: 2017
- Subjects: Pharmacy -- Study and teaching -- South Africa Experiential learning -- South Africa , Academic achievement -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19037 , vital:28767
- Description: The extended role of today’s pharmacist with the emphasis on patient-focused care has highlighted the need for increased exposure of undergraduate pharmacy students to experiential learning in patient-centred environments, and additional skills development in therapeutics, problem solving and clinical decision making. At the Nelson Mandela Metropolitan University (NMMU), final year pharmacy students complete a university-coordinated, hospital-based, structured experiential learning programme (ELP) for the exit-level module, Pharmacology4. However, the students consistently experience difficulties in the application of pharmacological knowledge during the transition from lecture-based learning to the patient-focused clinical setting. The student population at the NMMU is diverse, with varied cultural, ethnic, language and secondary level education backgrounds, as well as different learning preferences and approaches. The extent to which these factors affect academic achievement in the experiential learning environment is unknown. Central research question The central research question for this study was therefore, “What would be the effect of an intervention aimed at supporting undergraduate pharmacy students during clinical placements, on academic achievement in, and student attitudes towards, experiential learning programmes (ELP)?” In order to explore the research question, several factors which may influence academic achievement in ELPs were investigated, namely: academic achievement (pre-university, in the BPharm programme and, in pharmacology); the admission route into the BPharm programme and the subsequent rate of academic progression; English reading comprehension ability; learning styles; problem solving ability; the extent to which students are prepared for application of knowledge in the ELP, in terms of assessment methods used prior to the final year and previous pharmacy work-based experience. In addition, the students’ lived experience of the ELP was explored, and the need for, and nature of, an intervention was determined. The research was based in a pragmatic paradigm, using an advanced mixed methods approach. An intervention-based, two-phase, quasi-experimental design was employed with an initial exploratory Preliminary Phase (in 2013) preceding the larger experimental framework (Phases One and Two, in 2014 and 2015 respectively). The research design was primarily quantitative, with pre- and post- testing conducted before and after the ELP. The ELP was completed by the comparator cohort in Phase One and the experimental cohort in Phase Two. Supplementary qualitative data was collected before, during and after the ELP. The intervention, in the form of supplementary academic support sessions, was developed from the qualitative data using an iterative approach, and implemented during the ELP in Phase Two. Attitudes and expectations of the students towards the hospital-based ELP were generally positive and realistic. Areas of concern included the difficulties experienced in the application and integration of pharmacological knowledge, both in the clinical setting and the clinical case study-based assessments; students feeling overwhelmed, inadequate and inferior in the clinical environment, compounded by an absence of clinical pharmacists as role models; and feeling unprepared for patient-focused care. The qualitative data strongly supported the need for supplementary academic support sessions. The intervention was developed and implemented in Phase Two, using patient case-based, active learning strategies. The majority of students (91.0%; n = 104) reported improved case analysis skills. A statistically significant (p = .030, Cohen’s d = 0.34) improvement was noted in the summative Pharmacology4 assessment marks obtained by the experimental cohort post-intervention, although of small practical significance. Predictors of academic achievement in the ELP were found to be language, specifically English reading comprehension skills, academic achievement in the BPharm programme and pharmacology, the university admission score, the rate of academic progression, and problem solving ability. Previous pharmacy-based work experience and assessment questions requiring application of knowledge were also found to influence achievement in the ELP. The need for an intervention in the form of supplementary academic support sessions was confirmed. The intervention was subsequently developed and successfully implemented, with student-reported self-perceived improvements in patient case analysis skills. These positive findings were supported by quantitative data which showed a statistically significant improvement in academic achievement in the ELP. Several predictors of academic achievement in the ELP were identified, and invaluable insight was gained into the nature of the difficulties experienced by pharmacy students in the transition from lecture-based learning to experiential learning in patient-focused environments.
- Full Text:
- Date Issued: 2017
- Authors: McCartney, Jane Alison
- Date: 2017
- Subjects: Pharmacy -- Study and teaching -- South Africa Experiential learning -- South Africa , Academic achievement -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19037 , vital:28767
- Description: The extended role of today’s pharmacist with the emphasis on patient-focused care has highlighted the need for increased exposure of undergraduate pharmacy students to experiential learning in patient-centred environments, and additional skills development in therapeutics, problem solving and clinical decision making. At the Nelson Mandela Metropolitan University (NMMU), final year pharmacy students complete a university-coordinated, hospital-based, structured experiential learning programme (ELP) for the exit-level module, Pharmacology4. However, the students consistently experience difficulties in the application of pharmacological knowledge during the transition from lecture-based learning to the patient-focused clinical setting. The student population at the NMMU is diverse, with varied cultural, ethnic, language and secondary level education backgrounds, as well as different learning preferences and approaches. The extent to which these factors affect academic achievement in the experiential learning environment is unknown. Central research question The central research question for this study was therefore, “What would be the effect of an intervention aimed at supporting undergraduate pharmacy students during clinical placements, on academic achievement in, and student attitudes towards, experiential learning programmes (ELP)?” In order to explore the research question, several factors which may influence academic achievement in ELPs were investigated, namely: academic achievement (pre-university, in the BPharm programme and, in pharmacology); the admission route into the BPharm programme and the subsequent rate of academic progression; English reading comprehension ability; learning styles; problem solving ability; the extent to which students are prepared for application of knowledge in the ELP, in terms of assessment methods used prior to the final year and previous pharmacy work-based experience. In addition, the students’ lived experience of the ELP was explored, and the need for, and nature of, an intervention was determined. The research was based in a pragmatic paradigm, using an advanced mixed methods approach. An intervention-based, two-phase, quasi-experimental design was employed with an initial exploratory Preliminary Phase (in 2013) preceding the larger experimental framework (Phases One and Two, in 2014 and 2015 respectively). The research design was primarily quantitative, with pre- and post- testing conducted before and after the ELP. The ELP was completed by the comparator cohort in Phase One and the experimental cohort in Phase Two. Supplementary qualitative data was collected before, during and after the ELP. The intervention, in the form of supplementary academic support sessions, was developed from the qualitative data using an iterative approach, and implemented during the ELP in Phase Two. Attitudes and expectations of the students towards the hospital-based ELP were generally positive and realistic. Areas of concern included the difficulties experienced in the application and integration of pharmacological knowledge, both in the clinical setting and the clinical case study-based assessments; students feeling overwhelmed, inadequate and inferior in the clinical environment, compounded by an absence of clinical pharmacists as role models; and feeling unprepared for patient-focused care. The qualitative data strongly supported the need for supplementary academic support sessions. The intervention was developed and implemented in Phase Two, using patient case-based, active learning strategies. The majority of students (91.0%; n = 104) reported improved case analysis skills. A statistically significant (p = .030, Cohen’s d = 0.34) improvement was noted in the summative Pharmacology4 assessment marks obtained by the experimental cohort post-intervention, although of small practical significance. Predictors of academic achievement in the ELP were found to be language, specifically English reading comprehension skills, academic achievement in the BPharm programme and pharmacology, the university admission score, the rate of academic progression, and problem solving ability. Previous pharmacy-based work experience and assessment questions requiring application of knowledge were also found to influence achievement in the ELP. The need for an intervention in the form of supplementary academic support sessions was confirmed. The intervention was subsequently developed and successfully implemented, with student-reported self-perceived improvements in patient case analysis skills. These positive findings were supported by quantitative data which showed a statistically significant improvement in academic achievement in the ELP. Several predictors of academic achievement in the ELP were identified, and invaluable insight was gained into the nature of the difficulties experienced by pharmacy students in the transition from lecture-based learning to experiential learning in patient-focused environments.
- Full Text:
- Date Issued: 2017
The safety of navigation and the role of port state jurisdiction: a South African perspective
- Authors: Metuge, Denning Ngomele
- Date: 2017
- Subjects: Harbors -- Law and legislation -- South Africa Law of the sea -- South Africa
- Language: English
- Type: Thesis , Masters , LLD
- Identifier: http://hdl.handle.net/10948/19343 , vital:28853
- Description: This thesis set to examine whether South Africa has incorporated the provisions on vessel navigational safety standards established in the relevant international instruments developed by the IMO: the International Convention for the Safety of Life at Sea, 1974 (SOLAS) as amended, the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978 (STCW) as amended, and the Convention on International Regulations for Preventing Collisions at Sea, 1972 (COLREGs) as amended. It also set to determine the regulatory scope for the exercise of port State jurisdiction from a South African perspective. To establish whether a vessel’s condition complies to prescribed navigational safety standards, the relevant international instruments require States that have ratified the instruments not only to ensure that vessels registered under their flag are inspected for compliance before they can navigate, but that foreign visiting vessels must be surveyed to ensure that they also comply with the safety standards. These surveys are conducted while vessels are in the port of a port State. In addition, the Third United Nations Convention on the Law of the Sea, 1982 (LOSC), provides in article 218 that the port State may enforce anti-pollution regulations committed by a vessel that calls at one of its ports, after committing an illegal discharge outside the territorial waters of the State and its exclusive economic zone (EEZ). However, the provisions of article 218 LOSC have been the center of scholarly debate on the scope of port State jurisdiction (PSJ). Whilst one school of thought holds that PSJ refers only to the provisions of article 218 LOSC, another contends that in defining PSJ, its meaning must be awarded a broader scope to include the regulation of navigational safety standards. Due to the varied opinions on the scope of PSJ, this thesis examined the regulatory framework for the exercise of port State jurisdiction (PSJ) in South Africa. The discussion was relevant to determine the role of PSJ to enhance navigational safety from a South African perspective. This thesis comprised of an in-depth analysis of primary and secondary sources of data relevant to the regulation of navigational safety. The data obtained was critically discussed to establish whether the relevant international navigational safety standards are incorporated into South African law. The process included critical discussions on the principle of jurisdiction, and its exercise by States under international law. The discussions analysed the complexities associated with defining jurisdiction and determining its scope, which are relevant in respect of States’ competence to prescribe and enforce domestic laws, in conformity with the requirements of the LOSC. International law awards jurisdiction to the State to regulate laws within its national territory subject to some restrictions. However, the meaning of jurisdiction is not easily discernible even to lawyers. The discussions showed that the Republic exercises jurisdiction in conformity with generally accepted grounds for the exercise of jurisdiction, and that it is the prerogative of the State to adopt laws it deems necessary within its territory. Thus, the incorporation of international instruments on the safety of navigation is not a forgone conclusion, as it is dependent on the will of the State to ratify, and give effect to the provisions of the relevant instruments in its domestic law. Furthermore, this thesis discussed the relevant international safety instruments in contrast to the provisions of South African merchant shipping regulations, to identify any regulatory gaps in the incorporation of their provisions in South African law. Against a background of comparative analyses of the international norms and the provisions of South African merchant shipping regulations, this research found that a significant number of the relevant international safety instruments are incorporated into south African law by Merchant Shipping Act (MSA) as amended, and regulations made in terms of the Act. The provisions of South African merchant shipping regulations are administered by the South African Maritime Safety Authority (SAMSA). However, whilst this research found little doubt that the provisions of the STCW and COLREGs are given full effect in South African law, it identified regulatory differences in respect of the most relevant of all international instruments with regard to the safety of navigation, SOLAS. Some SOLAS provisions in respect of navigational safety are not incorporated into domestic law, and in some instances where they are incorporated, the provisions of domestic law contrasts that of SOLAS, or are not as comprehensive. For instance, there is a contrast in the provisions of the Navigation Bridge Visibility Regulations (NVBR), that make the regulations applicable to vessels of 45m or more in length constructed before 1 July 2008. Whereas, SOLAS regulations in respect of the navigation bridge visibility standards of vessels apply to vessels 55m or more length. Furthermore, a 5 months extension may be awarded in respect of a safety certificate issued for a South African vessel that is not in the Republic on the date of its expiry. This provision goes beyond the requirement of SOLAS, which requires that no extension be granted for a period longer than 3 months. Likewise, SAMSA may grant an extension of a safety certificate other than a cargo vessel construction certificate, for a period no longer than five month to enable a foreign vessel to complete its journey to its country of registry or point of inspection. This extension again, is longer than the 3 months requirement under SOLAS. Moreover, the survey requirements applicable to all South African vessels where ever they may be, and all foreign merchant vessels that come into the Republic, do not reflect the specific provisions of SOLAS. A significant amendment was made to SOLAS by SOLAS PROT 1988. SOLAS PROT 1988 introduced the harmonised system of survey and certification (HSSC) into the provisions of SOLAS, thereby harmonising its survey standards with those of other international instruments. SOLAS PROT 1988 has come into force for all States that have ratified the Protocol since the year 2000. This thesis finds that while South Africa is a party to SOLAS as amended by SOLAS PROT 1978, the Republic has not yet ratified SOLAS PROT 1988. Hence, the Republic is not bound to any requirements of SOLAS PROT 1988. Furthermore, although States that are not party to an international instrument requiring the implementation of the HSSC are invited to implement the HSSC anyway, there is no provision in the MSA that incorporates the HSSC. Of central importance to the regulation of merchant shipping standards, States are not only required to adopt domestic laws giving effect to international standards, but they are required to implement international standards in a uniform manner. This is aimed at avoiding a merchant shipping arena plagued by conflicting unilateral domestic rules. SOLAS PROT 1988 has been ratified by States comprising of 96% of the world’s merchant fleet by tonnage. The massive acceptance of SOLAS PROT 1988 is indicative of the international trend, towards uniformity in the implementation of international norms. This thesis recommends that, for the Republic’s merchant shipping regulations to reflect the international trend, the Republic should amend its merchant shipping regulation to incorporate the HSSC. Alternatively, the Republic may ratify SOLAS PROT 1988, and give full effect to its survey and certification standards and the relevant navigational safety provisions in the ANNEX of SOLAS.In addition, whilst a debate abounds on the international scene in respect of the scope of port State jurisdiction, the analysis of the regulatory framework for the exercise of port State jurisdiction in South Africa found that the regulatory framework for the exercise of port State jurisdiction by the Republic includes the regulation of not only environment-related navigational standards prescribed by article 218 LOSC, but also, navigational safety standards, and significantly, its scope is not burdened by the international law limitations to the exercise of coastal State jurisdiction. As such, a recommendation is made to the effect that when defining PSJ, its scope should not be limited to the enforcement of standards contained in article 218 LOSC, rather, it should be awarded a broader scope to include the regulation of other navigational standards including safety.
- Full Text:
- Date Issued: 2017
- Authors: Metuge, Denning Ngomele
- Date: 2017
- Subjects: Harbors -- Law and legislation -- South Africa Law of the sea -- South Africa
- Language: English
- Type: Thesis , Masters , LLD
- Identifier: http://hdl.handle.net/10948/19343 , vital:28853
- Description: This thesis set to examine whether South Africa has incorporated the provisions on vessel navigational safety standards established in the relevant international instruments developed by the IMO: the International Convention for the Safety of Life at Sea, 1974 (SOLAS) as amended, the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978 (STCW) as amended, and the Convention on International Regulations for Preventing Collisions at Sea, 1972 (COLREGs) as amended. It also set to determine the regulatory scope for the exercise of port State jurisdiction from a South African perspective. To establish whether a vessel’s condition complies to prescribed navigational safety standards, the relevant international instruments require States that have ratified the instruments not only to ensure that vessels registered under their flag are inspected for compliance before they can navigate, but that foreign visiting vessels must be surveyed to ensure that they also comply with the safety standards. These surveys are conducted while vessels are in the port of a port State. In addition, the Third United Nations Convention on the Law of the Sea, 1982 (LOSC), provides in article 218 that the port State may enforce anti-pollution regulations committed by a vessel that calls at one of its ports, after committing an illegal discharge outside the territorial waters of the State and its exclusive economic zone (EEZ). However, the provisions of article 218 LOSC have been the center of scholarly debate on the scope of port State jurisdiction (PSJ). Whilst one school of thought holds that PSJ refers only to the provisions of article 218 LOSC, another contends that in defining PSJ, its meaning must be awarded a broader scope to include the regulation of navigational safety standards. Due to the varied opinions on the scope of PSJ, this thesis examined the regulatory framework for the exercise of port State jurisdiction (PSJ) in South Africa. The discussion was relevant to determine the role of PSJ to enhance navigational safety from a South African perspective. This thesis comprised of an in-depth analysis of primary and secondary sources of data relevant to the regulation of navigational safety. The data obtained was critically discussed to establish whether the relevant international navigational safety standards are incorporated into South African law. The process included critical discussions on the principle of jurisdiction, and its exercise by States under international law. The discussions analysed the complexities associated with defining jurisdiction and determining its scope, which are relevant in respect of States’ competence to prescribe and enforce domestic laws, in conformity with the requirements of the LOSC. International law awards jurisdiction to the State to regulate laws within its national territory subject to some restrictions. However, the meaning of jurisdiction is not easily discernible even to lawyers. The discussions showed that the Republic exercises jurisdiction in conformity with generally accepted grounds for the exercise of jurisdiction, and that it is the prerogative of the State to adopt laws it deems necessary within its territory. Thus, the incorporation of international instruments on the safety of navigation is not a forgone conclusion, as it is dependent on the will of the State to ratify, and give effect to the provisions of the relevant instruments in its domestic law. Furthermore, this thesis discussed the relevant international safety instruments in contrast to the provisions of South African merchant shipping regulations, to identify any regulatory gaps in the incorporation of their provisions in South African law. Against a background of comparative analyses of the international norms and the provisions of South African merchant shipping regulations, this research found that a significant number of the relevant international safety instruments are incorporated into south African law by Merchant Shipping Act (MSA) as amended, and regulations made in terms of the Act. The provisions of South African merchant shipping regulations are administered by the South African Maritime Safety Authority (SAMSA). However, whilst this research found little doubt that the provisions of the STCW and COLREGs are given full effect in South African law, it identified regulatory differences in respect of the most relevant of all international instruments with regard to the safety of navigation, SOLAS. Some SOLAS provisions in respect of navigational safety are not incorporated into domestic law, and in some instances where they are incorporated, the provisions of domestic law contrasts that of SOLAS, or are not as comprehensive. For instance, there is a contrast in the provisions of the Navigation Bridge Visibility Regulations (NVBR), that make the regulations applicable to vessels of 45m or more in length constructed before 1 July 2008. Whereas, SOLAS regulations in respect of the navigation bridge visibility standards of vessels apply to vessels 55m or more length. Furthermore, a 5 months extension may be awarded in respect of a safety certificate issued for a South African vessel that is not in the Republic on the date of its expiry. This provision goes beyond the requirement of SOLAS, which requires that no extension be granted for a period longer than 3 months. Likewise, SAMSA may grant an extension of a safety certificate other than a cargo vessel construction certificate, for a period no longer than five month to enable a foreign vessel to complete its journey to its country of registry or point of inspection. This extension again, is longer than the 3 months requirement under SOLAS. Moreover, the survey requirements applicable to all South African vessels where ever they may be, and all foreign merchant vessels that come into the Republic, do not reflect the specific provisions of SOLAS. A significant amendment was made to SOLAS by SOLAS PROT 1988. SOLAS PROT 1988 introduced the harmonised system of survey and certification (HSSC) into the provisions of SOLAS, thereby harmonising its survey standards with those of other international instruments. SOLAS PROT 1988 has come into force for all States that have ratified the Protocol since the year 2000. This thesis finds that while South Africa is a party to SOLAS as amended by SOLAS PROT 1978, the Republic has not yet ratified SOLAS PROT 1988. Hence, the Republic is not bound to any requirements of SOLAS PROT 1988. Furthermore, although States that are not party to an international instrument requiring the implementation of the HSSC are invited to implement the HSSC anyway, there is no provision in the MSA that incorporates the HSSC. Of central importance to the regulation of merchant shipping standards, States are not only required to adopt domestic laws giving effect to international standards, but they are required to implement international standards in a uniform manner. This is aimed at avoiding a merchant shipping arena plagued by conflicting unilateral domestic rules. SOLAS PROT 1988 has been ratified by States comprising of 96% of the world’s merchant fleet by tonnage. The massive acceptance of SOLAS PROT 1988 is indicative of the international trend, towards uniformity in the implementation of international norms. This thesis recommends that, for the Republic’s merchant shipping regulations to reflect the international trend, the Republic should amend its merchant shipping regulation to incorporate the HSSC. Alternatively, the Republic may ratify SOLAS PROT 1988, and give full effect to its survey and certification standards and the relevant navigational safety provisions in the ANNEX of SOLAS.In addition, whilst a debate abounds on the international scene in respect of the scope of port State jurisdiction, the analysis of the regulatory framework for the exercise of port State jurisdiction in South Africa found that the regulatory framework for the exercise of port State jurisdiction by the Republic includes the regulation of not only environment-related navigational standards prescribed by article 218 LOSC, but also, navigational safety standards, and significantly, its scope is not burdened by the international law limitations to the exercise of coastal State jurisdiction. As such, a recommendation is made to the effect that when defining PSJ, its scope should not be limited to the enforcement of standards contained in article 218 LOSC, rather, it should be awarded a broader scope to include the regulation of other navigational standards including safety.
- Full Text:
- Date Issued: 2017
Exploring the influence of a multiliteracies approach on Grade 11 Physical Sciences learners' sense making and dispositions towards graphs of motion
- Authors: Mwiiyale, Laina Natangwe
- Date: 2017
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/17605 , vital:22264
- Description: Namibian students perform poorly in Physical Sciences and the Physics component in particular (DNEA, 2013). The Namibian Senior Secondary Certificate (NSSC) Examiner's report (DNEA, 2014) also reveals that many Physical Science learners have difficulties demonstrating an understanding of basic physics required for working with kinematic graphs (graphical representation of motion). Kinematics is an important tool in understanding the motion of objects - whether translational, oscillatory or circular. In kinematics, the relationships between distance, displacement, speed, velocity or acceleration and time are represented in graphs of motion. In teaching the topic, using graphs can be an alternative to the use of abstract formulas, or formulas can be used along with graphical representations to facilitate student understanding (Behzak, 2006). This study explored the influence of the multiliteracies approach on grade 11 Physical Science learners' dispositions and sense making towards graphs of motion. The intervention being investigated is informed by the Pedagogy of Multiliteracies (PoM) framework by Cazden et al., (1996) with the focus on overt instruction, situated practice, critical framing and transformed practice using semiotic patterns of meaning, in conjunction with Vygotsky's (1978) social constructivism theory - particularly, its notion of mediation. This action research study employed the interpretive paradigm. Data were collected using a pre-test, stimulated recall interviews, lesson observations, a post-test and learners' reflections. Data were coded and the codes then categorized into different themes in order to answer the research questions. The findings of this study were that learners are better able to make sense of graphs of motions when a PoM approach is employed. Their dispositions towards graphs of motion also improved as a result of the PoM intervention, due to it enabling a better understanding of kinematics concepts. This study also contributed to the professional development of the researcher, particularly in terms of it contributing to a broader understanding of the research and possible usefulness of semiotic mediation in science education. Implications of the study include the possibility of including the PoM approach in science teacher education and training programme curricula.
- Full Text:
- Date Issued: 2017
- Authors: Mwiiyale, Laina Natangwe
- Date: 2017
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/17605 , vital:22264
- Description: Namibian students perform poorly in Physical Sciences and the Physics component in particular (DNEA, 2013). The Namibian Senior Secondary Certificate (NSSC) Examiner's report (DNEA, 2014) also reveals that many Physical Science learners have difficulties demonstrating an understanding of basic physics required for working with kinematic graphs (graphical representation of motion). Kinematics is an important tool in understanding the motion of objects - whether translational, oscillatory or circular. In kinematics, the relationships between distance, displacement, speed, velocity or acceleration and time are represented in graphs of motion. In teaching the topic, using graphs can be an alternative to the use of abstract formulas, or formulas can be used along with graphical representations to facilitate student understanding (Behzak, 2006). This study explored the influence of the multiliteracies approach on grade 11 Physical Science learners' dispositions and sense making towards graphs of motion. The intervention being investigated is informed by the Pedagogy of Multiliteracies (PoM) framework by Cazden et al., (1996) with the focus on overt instruction, situated practice, critical framing and transformed practice using semiotic patterns of meaning, in conjunction with Vygotsky's (1978) social constructivism theory - particularly, its notion of mediation. This action research study employed the interpretive paradigm. Data were collected using a pre-test, stimulated recall interviews, lesson observations, a post-test and learners' reflections. Data were coded and the codes then categorized into different themes in order to answer the research questions. The findings of this study were that learners are better able to make sense of graphs of motions when a PoM approach is employed. Their dispositions towards graphs of motion also improved as a result of the PoM intervention, due to it enabling a better understanding of kinematics concepts. This study also contributed to the professional development of the researcher, particularly in terms of it contributing to a broader understanding of the research and possible usefulness of semiotic mediation in science education. Implications of the study include the possibility of including the PoM approach in science teacher education and training programme curricula.
- Full Text:
- Date Issued: 2017
The illegal diamond trade in South Africa and its tax consequences
- Authors: Kumm-Schmidt, Megan
- Date: 2017
- Subjects: Diamond industry and trade -- South Africa , Diamond industry and trade -- Corrupt practices -- South Africa , Diamond industry and trade -- South Africa -- Taxation , Conflict diamonds -- South Africa , Income tax -- Law and legislation -- South Africa , Tax evasion -- South Africa , South Africa. Income Tax Act, 1962 , South Africa. Prevention and Combating of Corrupt Activities Act, 2004 , South Africa. Tax Administration Act, 2011 , South Africa. ǂt Value-Added Tax Act, 1991 , Kimberley Process Certification Scheme
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/4389 , vital:20656
- Description: The object of the research was to discuss the taxability of the illegal diamond trade in South Africa and to identify the consequences of not declaring income obtained from the illegal diamond trade to the South African Revenue Services. The research was conducted by means of a critical analysis of documentary data with specific reference to the Income Tax Act, the Value-Added Tax (VAT) Act, the Tax Administration Act and relevant case law. The Income Tax Act and the Value-Added Tax Act were referred to in relation to the tax consequences of the illegal diamond trade and the Tax Administration Act was used to determine the consequences of not declaring income to the South African Revenue Services. It was established that amounts received from the sale of illegal diamonds are to be included in the taxpayer's gross income, whilst in relation to income received from diamond theft it was not as clear. The MP Finance Group case held that the nature of the receipt and the way in which the transaction occurred in each individual situation will be the deciding factor as to whether or not the stolen diamonds will be taxable in the hands of the thief. The buying and selling of "blood" or stolen diamonds can amount to a trade. As there have been no definitive case decisions in South Africa, it remains unclear whether expenses relating to an illegal trade are deductible. Assuming that expenses relating to an illegal trade are deductible, the provisions of section 11(a) will apply to expenses incurred as a result of dealing in illegal diamonds and it was concluded that qualifying expenses will be deductible. A taxpayer buying and selling "blood" or stolen diamonds is required to register for VAT if sales exceed the threshold and would be required to account for VAT on these transactions. If the taxpayer does not declare the income for income tax purposes or register for and pay VAT to the South African Revenue Services from either the sale of illegal diamonds or the theft of diamonds, this will amount to tax evasion and the dealer will be subject to penalties and even imprisonment
- Full Text:
- Date Issued: 2017
- Authors: Kumm-Schmidt, Megan
- Date: 2017
- Subjects: Diamond industry and trade -- South Africa , Diamond industry and trade -- Corrupt practices -- South Africa , Diamond industry and trade -- South Africa -- Taxation , Conflict diamonds -- South Africa , Income tax -- Law and legislation -- South Africa , Tax evasion -- South Africa , South Africa. Income Tax Act, 1962 , South Africa. Prevention and Combating of Corrupt Activities Act, 2004 , South Africa. Tax Administration Act, 2011 , South Africa. ǂt Value-Added Tax Act, 1991 , Kimberley Process Certification Scheme
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/4389 , vital:20656
- Description: The object of the research was to discuss the taxability of the illegal diamond trade in South Africa and to identify the consequences of not declaring income obtained from the illegal diamond trade to the South African Revenue Services. The research was conducted by means of a critical analysis of documentary data with specific reference to the Income Tax Act, the Value-Added Tax (VAT) Act, the Tax Administration Act and relevant case law. The Income Tax Act and the Value-Added Tax Act were referred to in relation to the tax consequences of the illegal diamond trade and the Tax Administration Act was used to determine the consequences of not declaring income to the South African Revenue Services. It was established that amounts received from the sale of illegal diamonds are to be included in the taxpayer's gross income, whilst in relation to income received from diamond theft it was not as clear. The MP Finance Group case held that the nature of the receipt and the way in which the transaction occurred in each individual situation will be the deciding factor as to whether or not the stolen diamonds will be taxable in the hands of the thief. The buying and selling of "blood" or stolen diamonds can amount to a trade. As there have been no definitive case decisions in South Africa, it remains unclear whether expenses relating to an illegal trade are deductible. Assuming that expenses relating to an illegal trade are deductible, the provisions of section 11(a) will apply to expenses incurred as a result of dealing in illegal diamonds and it was concluded that qualifying expenses will be deductible. A taxpayer buying and selling "blood" or stolen diamonds is required to register for VAT if sales exceed the threshold and would be required to account for VAT on these transactions. If the taxpayer does not declare the income for income tax purposes or register for and pay VAT to the South African Revenue Services from either the sale of illegal diamonds or the theft of diamonds, this will amount to tax evasion and the dealer will be subject to penalties and even imprisonment
- Full Text:
- Date Issued: 2017
Maimed bodies in George R.R. Martin’s A song of ice and fire
- Authors: Goodenough, Amy Caroline
- Date: 2017
- Subjects: Martin, George R. R. -- Song of ice and fire , Violence in literature , Fantasy fiction -- History and criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7301 , vital:21240
- Description: George R.R. Martin’s fantasy series, A Song of Ice and Fire, has joined franchises like Harry Potter and The Lord of the Rings at the forefront of popular culture. Unlike other popular fantasy franchises, however, Song is notably ‘gritty’ - inspired as much by the realism of historical fiction as it is by its fantastical predecessors. The novels focus on a massive struggle for power, and that struggle is a famously bloody one: the violence of the novel’s medieval-inspired world and of medieval warfare, is placed front and center. This thesis argues that Song portrays this excessive violence with a view to more than mere sensation. The body is central to Martin’s text, and since power is the object of Martin’s characters, he depicts the way in which power interacts with the body with sophistication. The use of capital and corporal punishment is foregrounded frequently in the text, and presented as central to the process of ruling, but horrifying in its potential for injustice. For all that these acts of maiming - public execution, public torture - may be presented as ceremonies of justice, Martin makes it evident that they are in fact rituals of power. The spectacular display of maimed bodies occurs frequently - so frequently that it is clearly ordinary to Martin’s characters - and nearly always with a view to creating a perception of power. Heads are spiked on castle walls, gibbets hung in town squares, and slaves crucified on road-signs, and these all speak not of the criminality of the victims, but of the power of those doing the punishing. While such displays may be successful, they usually signal weakness to the reader: Martin writes numerous characters whose acts of violence come as misplaced reactions to their own vulnerability. This dynamic comes to the fore most powerfully in the absurd performances of violence by Theon Greyjoy, and, later, in his torture by Ramsay Bolton.
- Full Text:
- Date Issued: 2017
- Authors: Goodenough, Amy Caroline
- Date: 2017
- Subjects: Martin, George R. R. -- Song of ice and fire , Violence in literature , Fantasy fiction -- History and criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7301 , vital:21240
- Description: George R.R. Martin’s fantasy series, A Song of Ice and Fire, has joined franchises like Harry Potter and The Lord of the Rings at the forefront of popular culture. Unlike other popular fantasy franchises, however, Song is notably ‘gritty’ - inspired as much by the realism of historical fiction as it is by its fantastical predecessors. The novels focus on a massive struggle for power, and that struggle is a famously bloody one: the violence of the novel’s medieval-inspired world and of medieval warfare, is placed front and center. This thesis argues that Song portrays this excessive violence with a view to more than mere sensation. The body is central to Martin’s text, and since power is the object of Martin’s characters, he depicts the way in which power interacts with the body with sophistication. The use of capital and corporal punishment is foregrounded frequently in the text, and presented as central to the process of ruling, but horrifying in its potential for injustice. For all that these acts of maiming - public execution, public torture - may be presented as ceremonies of justice, Martin makes it evident that they are in fact rituals of power. The spectacular display of maimed bodies occurs frequently - so frequently that it is clearly ordinary to Martin’s characters - and nearly always with a view to creating a perception of power. Heads are spiked on castle walls, gibbets hung in town squares, and slaves crucified on road-signs, and these all speak not of the criminality of the victims, but of the power of those doing the punishing. While such displays may be successful, they usually signal weakness to the reader: Martin writes numerous characters whose acts of violence come as misplaced reactions to their own vulnerability. This dynamic comes to the fore most powerfully in the absurd performances of violence by Theon Greyjoy, and, later, in his torture by Ramsay Bolton.
- Full Text:
- Date Issued: 2017
The 'failure-success' dichotomy in migration discourse and practice : revisiting reverse migration deterrents for South Africa based Zimbabwean skilled migrants
- Authors: Nzima, Divane
- Date: 2017
- Subjects: Return migration -- Zimbabwe Return migration -- South Africa Zimbabwe -- Emigration and immigration -- Economic aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5434 , vital:29243
- Description: The study was conceptualised against the background that leading migration theories explain return migration based on failure and success alone. The neo-classical economics theory of migration perceives return migration as a by-product of a failed migration experience while the new economics of labour migration perceives return as occurring after successful achievement of migration objectives. This study questions these theoretical positions through an exploration of the factors that deter South Africa-based Zimbabwean skilled migrants from returning home permanently notwithstanding a successful or failed migration experience. Furtive economic factors in Zimbabwe and South Africa that dissuade skilled migrants from returning home permanently are explored. Social factors in Zimbabwe and in South Africa that influence return migration decision making are also examined. Furthermore, the study analysed whether and how Zimbabwean skilled migrants are forced into a permanent settlement in South Africa as a result of what this study calls the ‘diaspora trap’. This ‘diaspora trap’ framework argues that Zimbabwean skilled migrants in South Africa do not return following their experiences of failure and success in South Africa. Central to the absence of return is the social construction of migrants as successful in Zimbabwe. Skilled migrants are deterred from returning due to their failure to meet family and communal expectations of success. In addition, return migration is deferred as a means to hide poverty in South Africa. Moreover, new diaspora family ties weaken attachments with Zimbabwe and contribute to deferred return migration. Skilled migrants are thus entrapped in South Africa by their failure to live up to the success social construct and the inability to mitigate adversities in the host country.
- Full Text:
- Date Issued: 2017
- Authors: Nzima, Divane
- Date: 2017
- Subjects: Return migration -- Zimbabwe Return migration -- South Africa Zimbabwe -- Emigration and immigration -- Economic aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5434 , vital:29243
- Description: The study was conceptualised against the background that leading migration theories explain return migration based on failure and success alone. The neo-classical economics theory of migration perceives return migration as a by-product of a failed migration experience while the new economics of labour migration perceives return as occurring after successful achievement of migration objectives. This study questions these theoretical positions through an exploration of the factors that deter South Africa-based Zimbabwean skilled migrants from returning home permanently notwithstanding a successful or failed migration experience. Furtive economic factors in Zimbabwe and South Africa that dissuade skilled migrants from returning home permanently are explored. Social factors in Zimbabwe and in South Africa that influence return migration decision making are also examined. Furthermore, the study analysed whether and how Zimbabwean skilled migrants are forced into a permanent settlement in South Africa as a result of what this study calls the ‘diaspora trap’. This ‘diaspora trap’ framework argues that Zimbabwean skilled migrants in South Africa do not return following their experiences of failure and success in South Africa. Central to the absence of return is the social construction of migrants as successful in Zimbabwe. Skilled migrants are deterred from returning due to their failure to meet family and communal expectations of success. In addition, return migration is deferred as a means to hide poverty in South Africa. Moreover, new diaspora family ties weaken attachments with Zimbabwe and contribute to deferred return migration. Skilled migrants are thus entrapped in South Africa by their failure to live up to the success social construct and the inability to mitigate adversities in the host country.
- Full Text:
- Date Issued: 2017
Impact of business confidence on private investments in South Africa
- Authors: Madzivire, Venna Wadzanayi
- Date: 2017
- Subjects: Success in business Confidence Investments
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8910 , vital:33955
- Description: A wide range of theoretical and empirical studies have been carried out on various determinants of private investments in different economies. This dissertation specifically focuses on the impact business confidence on private investments with regards to the South African economy for the period between 1990 and 2014. The private investment sector in South Africa has, to a greater extent contributed to the overall GDP of the economy. Even though business confidence has a considerable impact on private investments, this study also took into consideration other variables that affect the private investment sector such as interest rates, exchange range and GDP To determine short-run and long-run relationships of business confidence on private Investments in South Africa, a vector error correction model was employed. In order to avoid spurious regression, the ADF test and the PP test were used to test for stationarity. Results of the study indicate that private investments are subject to permanent changes because of changes in business confidence. In addition to that, not all variables have a long-term relationship with private investments but business confidence has a significant long run relationship with private investment. After conducting an econometric analysis, results revealed that Business Confidence and Gross Domestic Product have a positive impact on private investments. On the other hand, interest rates and exchange rates have a negative impact on private investments in South Africa. Various policy recommendations were established on both Private Investments and Business Confidence.
- Full Text:
- Date Issued: 2017
- Authors: Madzivire, Venna Wadzanayi
- Date: 2017
- Subjects: Success in business Confidence Investments
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8910 , vital:33955
- Description: A wide range of theoretical and empirical studies have been carried out on various determinants of private investments in different economies. This dissertation specifically focuses on the impact business confidence on private investments with regards to the South African economy for the period between 1990 and 2014. The private investment sector in South Africa has, to a greater extent contributed to the overall GDP of the economy. Even though business confidence has a considerable impact on private investments, this study also took into consideration other variables that affect the private investment sector such as interest rates, exchange range and GDP To determine short-run and long-run relationships of business confidence on private Investments in South Africa, a vector error correction model was employed. In order to avoid spurious regression, the ADF test and the PP test were used to test for stationarity. Results of the study indicate that private investments are subject to permanent changes because of changes in business confidence. In addition to that, not all variables have a long-term relationship with private investments but business confidence has a significant long run relationship with private investment. After conducting an econometric analysis, results revealed that Business Confidence and Gross Domestic Product have a positive impact on private investments. On the other hand, interest rates and exchange rates have a negative impact on private investments in South Africa. Various policy recommendations were established on both Private Investments and Business Confidence.
- Full Text:
- Date Issued: 2017
Investigating the interplay between Grade 9 learners’ home visual literacy and their development of school visual literacy in English First Additional language classrooms
- Authors: Mnyanda, Lutho
- Date: 2017
- Subjects: Visual literacy , Digital literacy , Action theory , Culturally relevant pedagogy , English language -- Study and teaching -- Foreign speakers -- Case studies , English language -- Study and teaching -- Foreign speakers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/50191 , vital:25966
- Description: Visual literacy is one of the critical aspects that English First Additional Language teachers and learners battle with. The focus of this investigation was on developing learners’ performance in visual literacy and helping teachers improve teaching practice. This thesis reports on efforts in developing critical visual literacy in two Grade 9 classrooms; a rural and a township school in the King William’s Town District in the Eastern Cape. The research spread over four week, spending two weeks at each school as an ethnographic researcher, being assimilated to the culture of the each school. In understanding the kind of visual knowledge that these learners brought from home between the rural-urban divide, the learners displayed an interest in visual literacy, used the necessary language and appeared to design certain visual materials around the school. Data was collected in the form of questionnaires that learners filled, informal Facebook conversation screenshots, as well as the researcher’s field notes. Learner focus group discussions were conducted, tape recorded and transcribed. Two lessons each were observed with the two teachers, and these were recorded and transcribed. A camera was used to take shots in the classroom to show the interaction between the teachers and the learners. Also, semi-structured interviews were held with each teacher and these were recorded and transcribed. The data revealed that there were no major differences between rural and urban school learners. However, the research has provided a valuable insight into the mismatch between home visual literacy practices and school visual literacy teaching. The learners’ digital visual literacy practices were far ahead than those of the teachers who are not able to capitalise on these visual skills; the cultural capital that learners bring to school. Learners also displayed a low reading culture but the medium for reading has shifted considerably and learners developed communication skills through digital technology. Teacher agency in the classroom revealed that teachers need to first engage with the cognitive functions of the visual images that they teach by the prevalence of low level questions that they ask. Moreover, there is a place for translanguaging in visual literacy lessons. These indicate important areas for teacher development to promote the emergence of transformative agency.
- Full Text:
- Date Issued: 2017
- Authors: Mnyanda, Lutho
- Date: 2017
- Subjects: Visual literacy , Digital literacy , Action theory , Culturally relevant pedagogy , English language -- Study and teaching -- Foreign speakers -- Case studies , English language -- Study and teaching -- Foreign speakers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/50191 , vital:25966
- Description: Visual literacy is one of the critical aspects that English First Additional Language teachers and learners battle with. The focus of this investigation was on developing learners’ performance in visual literacy and helping teachers improve teaching practice. This thesis reports on efforts in developing critical visual literacy in two Grade 9 classrooms; a rural and a township school in the King William’s Town District in the Eastern Cape. The research spread over four week, spending two weeks at each school as an ethnographic researcher, being assimilated to the culture of the each school. In understanding the kind of visual knowledge that these learners brought from home between the rural-urban divide, the learners displayed an interest in visual literacy, used the necessary language and appeared to design certain visual materials around the school. Data was collected in the form of questionnaires that learners filled, informal Facebook conversation screenshots, as well as the researcher’s field notes. Learner focus group discussions were conducted, tape recorded and transcribed. Two lessons each were observed with the two teachers, and these were recorded and transcribed. A camera was used to take shots in the classroom to show the interaction between the teachers and the learners. Also, semi-structured interviews were held with each teacher and these were recorded and transcribed. The data revealed that there were no major differences between rural and urban school learners. However, the research has provided a valuable insight into the mismatch between home visual literacy practices and school visual literacy teaching. The learners’ digital visual literacy practices were far ahead than those of the teachers who are not able to capitalise on these visual skills; the cultural capital that learners bring to school. Learners also displayed a low reading culture but the medium for reading has shifted considerably and learners developed communication skills through digital technology. Teacher agency in the classroom revealed that teachers need to first engage with the cognitive functions of the visual images that they teach by the prevalence of low level questions that they ask. Moreover, there is a place for translanguaging in visual literacy lessons. These indicate important areas for teacher development to promote the emergence of transformative agency.
- Full Text:
- Date Issued: 2017
Performance of project management units (PMUS): the case of Sarah Baartman District Municipality
- Authors: Monare, Thabang
- Date: 2017
- Subjects: Project management -- South Africa -- Eastern Cape -- Evaluation , Construction industry -- South Africa -- Eastern Cape -- Management Construction industry -- South Africa -- Eastern Cape -- Quality control
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/19081 , vital:28771
- Description: The Municipal Infrastructure Grant programme (MIG) is South Africa’s largest local government infrastructure development funding. Designed to improve service delivery through financing the cost of eradicating basic services backlogs created by Apartheid’s legacy of ‘separate development’, MIG is also intended to be part of government’s overall strategy to eliminate the ‘triple challenge’ of poverty, unemployment and growing inequality. Through government’s active policy which sought to transform and enhance the municipal infrastructure service delivery capacity, effective project management was identified as an integral function of municipalities with a developmental role in terms of the Constitutional mandate. This led to the establishment of Project Management Units (PMUs) tasked with administering the MIG funds and managing the infrastructure projects effectively. Whilst MIG’s overall key principles were clearly defined in the MIG policy framework, the attainment of project success has proved elusive for most municipalities and this manifestation has only been partially examined. The purpose of this study is to explore factors affecting project success with the establishment of PMUs in Sarah Baartman District Municipality (SBDM) in the Eastern Cape Province in South Africa, with the aim of contributing to the refinement of best-practice for project implementation. A multiple case study approach was preferred, preceded by an extensive review of relevant literature on the basic tenets of project success. This exercise culminated in the refinement of research questions which were then posed in interviews to a purposive sample of PMU managers within SBDM. The findings from the study revealed the centrality of the dominant features required to influence the probability of positive outcomes such as institutional capacity, organisational culture and infrastructure governance. The research concludes by proposing ways of improving on these three components in the delivery of municipal infrastructure.
- Full Text:
- Date Issued: 2017
- Authors: Monare, Thabang
- Date: 2017
- Subjects: Project management -- South Africa -- Eastern Cape -- Evaluation , Construction industry -- South Africa -- Eastern Cape -- Management Construction industry -- South Africa -- Eastern Cape -- Quality control
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/19081 , vital:28771
- Description: The Municipal Infrastructure Grant programme (MIG) is South Africa’s largest local government infrastructure development funding. Designed to improve service delivery through financing the cost of eradicating basic services backlogs created by Apartheid’s legacy of ‘separate development’, MIG is also intended to be part of government’s overall strategy to eliminate the ‘triple challenge’ of poverty, unemployment and growing inequality. Through government’s active policy which sought to transform and enhance the municipal infrastructure service delivery capacity, effective project management was identified as an integral function of municipalities with a developmental role in terms of the Constitutional mandate. This led to the establishment of Project Management Units (PMUs) tasked with administering the MIG funds and managing the infrastructure projects effectively. Whilst MIG’s overall key principles were clearly defined in the MIG policy framework, the attainment of project success has proved elusive for most municipalities and this manifestation has only been partially examined. The purpose of this study is to explore factors affecting project success with the establishment of PMUs in Sarah Baartman District Municipality (SBDM) in the Eastern Cape Province in South Africa, with the aim of contributing to the refinement of best-practice for project implementation. A multiple case study approach was preferred, preceded by an extensive review of relevant literature on the basic tenets of project success. This exercise culminated in the refinement of research questions which were then posed in interviews to a purposive sample of PMU managers within SBDM. The findings from the study revealed the centrality of the dominant features required to influence the probability of positive outcomes such as institutional capacity, organisational culture and infrastructure governance. The research concludes by proposing ways of improving on these three components in the delivery of municipal infrastructure.
- Full Text:
- Date Issued: 2017
An analysis of selected grade 11 learners’ interactions with geometry tasks using visualization processes: a case study in Namibia
- Authors: Kabuku, Brian S
- Date: 2017
- Subjects: Mathematics -- Study and teaching -- Activity programs , Geometry -- Study and teaching (Secondary) -- Namibia , Geometry -- Study and teaching (Secondary) -- Namibia -- Cast studies , Visualization
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/5949 , vital:20997
- Description: This case study was conducted at a secondary school where I teach, situated in the semi-rural setting of Bukalo village in Namibia, and sought to gain insights into the nature and role of visualisation processes employed when selected grade 11 learners interacted with selected geometry problems. According to Mariotti and Pensci (1994), visualisation takes place when "thinking is spontaneously accompanied and supported by images”, and helps students to understand the problem at hand. Visualisation is regarded as "making the unseen visible and imagery as the power to imagine the possible and the impossible” (Mason 1992). The study is located within an interpretive research paradigm in order to obtain in-depth understanding of the participants’ visualisation processes. Within this paradigm, both quantitative and qualitative approaches were adopted. The eight Grade 11 participants engaged with 12 items of the Geometry Visualisation Tasks (GVT) worksheets. Data was collected using video-recorded learners’ interactions with the GVT, observations, stimulated recall interviews and post-GVT interviews with the learners. During the data analysis stage, I used inductive analysis to determine patterns evident in learners ‘thinking processes’. My analytical framework consisted of indicators that were used to identify and classify visualisation processes for each task of the GVT for each participant. I adapted this framework from Ho (2010) and Ho, Ramful and Lowrie’s (2015) clarification of the representations. The findings from this study revealed that the use of visualisations facilitated meaningful learning when learners made use of these to develop and scaffold their conceptual understanding. The findings revealed that most learners used visualisation processes fairly to very accurately when solving geometry problems. They used visualisation processes by using sketches and diagrams that transformed a mathematical problem pictorially, connected their thinking to previous knowledge and experience, clarified the algebraic task and assisted them to understand the spatial relationships within each task.
- Full Text:
- Date Issued: 2017
- Authors: Kabuku, Brian S
- Date: 2017
- Subjects: Mathematics -- Study and teaching -- Activity programs , Geometry -- Study and teaching (Secondary) -- Namibia , Geometry -- Study and teaching (Secondary) -- Namibia -- Cast studies , Visualization
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/5949 , vital:20997
- Description: This case study was conducted at a secondary school where I teach, situated in the semi-rural setting of Bukalo village in Namibia, and sought to gain insights into the nature and role of visualisation processes employed when selected grade 11 learners interacted with selected geometry problems. According to Mariotti and Pensci (1994), visualisation takes place when "thinking is spontaneously accompanied and supported by images”, and helps students to understand the problem at hand. Visualisation is regarded as "making the unseen visible and imagery as the power to imagine the possible and the impossible” (Mason 1992). The study is located within an interpretive research paradigm in order to obtain in-depth understanding of the participants’ visualisation processes. Within this paradigm, both quantitative and qualitative approaches were adopted. The eight Grade 11 participants engaged with 12 items of the Geometry Visualisation Tasks (GVT) worksheets. Data was collected using video-recorded learners’ interactions with the GVT, observations, stimulated recall interviews and post-GVT interviews with the learners. During the data analysis stage, I used inductive analysis to determine patterns evident in learners ‘thinking processes’. My analytical framework consisted of indicators that were used to identify and classify visualisation processes for each task of the GVT for each participant. I adapted this framework from Ho (2010) and Ho, Ramful and Lowrie’s (2015) clarification of the representations. The findings from this study revealed that the use of visualisations facilitated meaningful learning when learners made use of these to develop and scaffold their conceptual understanding. The findings revealed that most learners used visualisation processes fairly to very accurately when solving geometry problems. They used visualisation processes by using sketches and diagrams that transformed a mathematical problem pictorially, connected their thinking to previous knowledge and experience, clarified the algebraic task and assisted them to understand the spatial relationships within each task.
- Full Text:
- Date Issued: 2017
The promotion of local economic development in the Chris Hani District Municipality
- Authors: Nqwazi, Noxolo Lindiwe
- Date: 2017
- Subjects: Economic development -- South Africa -- Eastern Cape Rural development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/19773 , vital:28962
- Description: Despite the commitment by government to reduce poverty after 1994, poverty is still increasing in rural areas such as the Chris Hani District. This is because development practitioners have not yet developed strategies based on the needs of the communities in order for development to succeed. Local government has to support initiatives by local communities that are economically viable by providing an enabling plan, finance, expertise and infrastructure. It is important that local activities stimulate local economies through local economic development (LED). The Integrated Development Plan (IDP) is a strategic planning document that places emphasis on LED as a key element in reducing poverty. The primary objective of the study was to obtain a better understanding of how the Chris Hani District seeks to reduce poverty. The aim is to improve the quality of life for communities in the district. LED is perceived as an appropriate intervention that local governments can engage in to improve socio-economic condition. The history of LED has shown that countries that did not provide services in their municipalities failed to succeed in LED compared to those with adequate service delivery. The study was based on research objectives. The first objective was to identify the constraints to local economic development in the district; the second was to ascertain what can be done to alleviate the plight of the Chris Hani district municipalities. The third objective was to ascertain was has been done to promote local economic development in the Chris Hani district. The main finding of the first objective is that there are structural constraints to LED. These constraints such as inadequate and unaffordable basic services hinder the economic development of local communities. Therefore, government has to invest in infrastructure that uses more labour to create job opportunities. In terms of the second objective the main finding is that community development can assist in alleviating the plight of the Chris Hani district municipalities. Empowerment of communities involves skills and training, education and access to basic services, expertise regarding credit, land and income-generating projects. The main finding in terms of the third objective is that the district has spheres of economic development such as community and locality development, Special Economic Zones (SEZs) and livelihoods development (agricultural development). This is not unique to the Chris Hani district. In the developing world, focus is mainly on small-scale and community based initiatives, utilizing indigenous skills and seeking primarily to ensure survival.
- Full Text:
- Date Issued: 2017
- Authors: Nqwazi, Noxolo Lindiwe
- Date: 2017
- Subjects: Economic development -- South Africa -- Eastern Cape Rural development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/19773 , vital:28962
- Description: Despite the commitment by government to reduce poverty after 1994, poverty is still increasing in rural areas such as the Chris Hani District. This is because development practitioners have not yet developed strategies based on the needs of the communities in order for development to succeed. Local government has to support initiatives by local communities that are economically viable by providing an enabling plan, finance, expertise and infrastructure. It is important that local activities stimulate local economies through local economic development (LED). The Integrated Development Plan (IDP) is a strategic planning document that places emphasis on LED as a key element in reducing poverty. The primary objective of the study was to obtain a better understanding of how the Chris Hani District seeks to reduce poverty. The aim is to improve the quality of life for communities in the district. LED is perceived as an appropriate intervention that local governments can engage in to improve socio-economic condition. The history of LED has shown that countries that did not provide services in their municipalities failed to succeed in LED compared to those with adequate service delivery. The study was based on research objectives. The first objective was to identify the constraints to local economic development in the district; the second was to ascertain what can be done to alleviate the plight of the Chris Hani district municipalities. The third objective was to ascertain was has been done to promote local economic development in the Chris Hani district. The main finding of the first objective is that there are structural constraints to LED. These constraints such as inadequate and unaffordable basic services hinder the economic development of local communities. Therefore, government has to invest in infrastructure that uses more labour to create job opportunities. In terms of the second objective the main finding is that community development can assist in alleviating the plight of the Chris Hani district municipalities. Empowerment of communities involves skills and training, education and access to basic services, expertise regarding credit, land and income-generating projects. The main finding in terms of the third objective is that the district has spheres of economic development such as community and locality development, Special Economic Zones (SEZs) and livelihoods development (agricultural development). This is not unique to the Chris Hani district. In the developing world, focus is mainly on small-scale and community based initiatives, utilizing indigenous skills and seeking primarily to ensure survival.
- Full Text:
- Date Issued: 2017
Exploring and expanding situated cognition in teaching science concepts: the nexus of indigenous knowledge and Western modern science
- Authors: Mukwambo, Muzwangowenyu
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/8382 , vital:21389
- Description: Certain teaching and learning strategies are appropriate in the context of exposing learners to modern science in situated cognition (SC) - the theory that posits that knowing is inseparable from doing - during, for example, visits to industrial operations. The distance and cost of travel, however, excludes most rural teachers and their learners from such SC exposure to Science and technology in industrial settings. To fill this gap between knowledge and practice in the curriculum experience for rural schools, this research investigated the extent to which a SC approach could be used in relation to indigenous knowledge practices (IKP) that have relevance to science teaching for rural science teachers. The study was conducted in three schools in the Zambezi Region of Namibia whereby six science teachers participated in the study. Also, to generate data from the community, the study included Indigenous community members as participants. Only three selected members from the community participated as representatives of the whole community. Essentially, the study explored and expanded possibilities for rural school teachers to use IKP as sites of SC in relation to concepts of pressure in particular and other science concepts. The research thus studied teaching practices as activity systems related to concepts in the school curriculum and the activity system of Indigenous community members. The patterns, regularities and irregularities provided the framing which was used to view SC through the lens of IKP. This framing of SC within the school curriculum was explored using cultural historical activity theory (CHAT) and Engestrom’s expansive learning cycle (ELC). The study was organized into two phases; exploration and the expansive phase. In the exploration phase, interviews, community analysis, document analysis, brainstorming, reflections and audiovisual evidence were used to generate data. The expansive stage used brainstorming, reflections, and interviews, an experimental test, audio-visual evidence, and interviews. Inductive and abductive modes of inference were used to come up with explanations of the research questions. Explanations proceeded using the frameworks of socio-cultural theory and social realism. Some findings from the data generated from the exploration phase revealed that science teachers in the schools studied do not always engage in a SC approach on account of a lack of Western modern science (WMS) resources and factors related to economic marginalization of the learners. Data generated in the same phase revealed that science teachers can engage the SC approach through embracing indigenous knowledge practices (IKP) reflecting Science whereby they can apprentice learners. Some of the other findings from the expansive learning phase show that science teachers in under-resourced schools can engage the SC approach if IK practices are used as mediational tools which can be used as models, icons/symbols, vocabulary, patterns, case studies and practical activities anchored in IKP. From the findings obtained the contribution which the study made was to come up with some methods of infusing indigenous knowledge systems in science teaching. The trend in research related to IK is more aligned to policies rather than how IK can be usefully used for the benefit of science teaching. As the study only looked into the IKP reflecting Science which the participating teachers brainstormed, it provides an insight into how and which other IK practices can be woven into WMS to encourage social transformation accommodative of Afrocentric world views which allows scientific literacy to be achieved.
- Full Text:
- Date Issued: 2017
- Authors: Mukwambo, Muzwangowenyu
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/8382 , vital:21389
- Description: Certain teaching and learning strategies are appropriate in the context of exposing learners to modern science in situated cognition (SC) - the theory that posits that knowing is inseparable from doing - during, for example, visits to industrial operations. The distance and cost of travel, however, excludes most rural teachers and their learners from such SC exposure to Science and technology in industrial settings. To fill this gap between knowledge and practice in the curriculum experience for rural schools, this research investigated the extent to which a SC approach could be used in relation to indigenous knowledge practices (IKP) that have relevance to science teaching for rural science teachers. The study was conducted in three schools in the Zambezi Region of Namibia whereby six science teachers participated in the study. Also, to generate data from the community, the study included Indigenous community members as participants. Only three selected members from the community participated as representatives of the whole community. Essentially, the study explored and expanded possibilities for rural school teachers to use IKP as sites of SC in relation to concepts of pressure in particular and other science concepts. The research thus studied teaching practices as activity systems related to concepts in the school curriculum and the activity system of Indigenous community members. The patterns, regularities and irregularities provided the framing which was used to view SC through the lens of IKP. This framing of SC within the school curriculum was explored using cultural historical activity theory (CHAT) and Engestrom’s expansive learning cycle (ELC). The study was organized into two phases; exploration and the expansive phase. In the exploration phase, interviews, community analysis, document analysis, brainstorming, reflections and audiovisual evidence were used to generate data. The expansive stage used brainstorming, reflections, and interviews, an experimental test, audio-visual evidence, and interviews. Inductive and abductive modes of inference were used to come up with explanations of the research questions. Explanations proceeded using the frameworks of socio-cultural theory and social realism. Some findings from the data generated from the exploration phase revealed that science teachers in the schools studied do not always engage in a SC approach on account of a lack of Western modern science (WMS) resources and factors related to economic marginalization of the learners. Data generated in the same phase revealed that science teachers can engage the SC approach through embracing indigenous knowledge practices (IKP) reflecting Science whereby they can apprentice learners. Some of the other findings from the expansive learning phase show that science teachers in under-resourced schools can engage the SC approach if IK practices are used as mediational tools which can be used as models, icons/symbols, vocabulary, patterns, case studies and practical activities anchored in IKP. From the findings obtained the contribution which the study made was to come up with some methods of infusing indigenous knowledge systems in science teaching. The trend in research related to IK is more aligned to policies rather than how IK can be usefully used for the benefit of science teaching. As the study only looked into the IKP reflecting Science which the participating teachers brainstormed, it provides an insight into how and which other IK practices can be woven into WMS to encourage social transformation accommodative of Afrocentric world views which allows scientific literacy to be achieved.
- Full Text:
- Date Issued: 2017
Density-dependent effects on body size, Philopatry, and dispersal in the Damaraland mole-rat (Fukomys damarensis)
- Authors: Finn, Kyle T
- Date: 2017
- Subjects: Fukomys damarensis , Fukomys damarensis -- Reproduction , Fukomys damarensis -- Growth , Rodents -- Reproduction -- South Africa -- Northern Cape , Rodents -- Growth -- South Africa -- Northern Cape , Rodent populations -- South Africa -- Northern Cape
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/50495 , vital:25993
- Description: Population density may exert changes in a variety of behavioural and physiological characters in animals. However, the effects of density-dependence and dispersal are poorly studied in subterranean rodents due to the difficulties involved in observing such effects in wild populations. Using the cooperative breeding Damaraland mole-rat (Fukomys damarensis) as a model species, the effects of population density on body size, growth rates, group size, recruitment, philopatry and dispersal were investigated at two sites (one with low density and one with high density) in the Northern Cape of South Africa. Group size, litter size and the probability of recapture were independent of population density. However, individual body size, recruitment, dispersal rate and dispersal distance were density-dependent. Individuals were significantly larger, juveniles exhibited a significantly higher growth rate, and juvenile recruitment was significantly greater when population density was low. At higher densities, significantly more individuals were lost between capture events which may be indicative of increased rates of dispersal. Mean dispersal distances in mole-rats were reduced at higher densities and increased at lower densities. While both sexes dispersed equally, males were significantly more likely to join an established colony and females created new burrow systems. In addition, four times as many single females were found when population density was low. The apparent differences in the study populations may be attributed to variable annual rainfall or food availability. The greater annual rainfall at the high-density site may provide better habitat conditions and therefore result in an increase in the population density and an increased dispersal rate due to the relaxed ecological constraints such as reduced energetic costs to burrowing. However, the larger body size found at the low-density site may indicate that the available food at that location is of better quality. This study revealed that mole-rats were able to disperse over 1km and therefore a much larger study area would be required in capture-mark-recapture studies to ensure the recapture of the majority of dispersers. Lastly, a surprising find of this study was that females may survive a solitary existence for over two years while awaiting the arrival of a mate.
- Full Text:
- Date Issued: 2017
- Authors: Finn, Kyle T
- Date: 2017
- Subjects: Fukomys damarensis , Fukomys damarensis -- Reproduction , Fukomys damarensis -- Growth , Rodents -- Reproduction -- South Africa -- Northern Cape , Rodents -- Growth -- South Africa -- Northern Cape , Rodent populations -- South Africa -- Northern Cape
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/50495 , vital:25993
- Description: Population density may exert changes in a variety of behavioural and physiological characters in animals. However, the effects of density-dependence and dispersal are poorly studied in subterranean rodents due to the difficulties involved in observing such effects in wild populations. Using the cooperative breeding Damaraland mole-rat (Fukomys damarensis) as a model species, the effects of population density on body size, growth rates, group size, recruitment, philopatry and dispersal were investigated at two sites (one with low density and one with high density) in the Northern Cape of South Africa. Group size, litter size and the probability of recapture were independent of population density. However, individual body size, recruitment, dispersal rate and dispersal distance were density-dependent. Individuals were significantly larger, juveniles exhibited a significantly higher growth rate, and juvenile recruitment was significantly greater when population density was low. At higher densities, significantly more individuals were lost between capture events which may be indicative of increased rates of dispersal. Mean dispersal distances in mole-rats were reduced at higher densities and increased at lower densities. While both sexes dispersed equally, males were significantly more likely to join an established colony and females created new burrow systems. In addition, four times as many single females were found when population density was low. The apparent differences in the study populations may be attributed to variable annual rainfall or food availability. The greater annual rainfall at the high-density site may provide better habitat conditions and therefore result in an increase in the population density and an increased dispersal rate due to the relaxed ecological constraints such as reduced energetic costs to burrowing. However, the larger body size found at the low-density site may indicate that the available food at that location is of better quality. This study revealed that mole-rats were able to disperse over 1km and therefore a much larger study area would be required in capture-mark-recapture studies to ensure the recapture of the majority of dispersers. Lastly, a surprising find of this study was that females may survive a solitary existence for over two years while awaiting the arrival of a mate.
- Full Text:
- Date Issued: 2017
An evaluation of appreciative inquiry as an alternative organisation development approach
- Van der Merwe, Schalk Willem
- Authors: Van der Merwe, Schalk Willem
- Date: 2017
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/5925 , vital:20990
- Description: The research provides an insight into the main challenges of previous Organisation Development processes, and Appreciative Inquiry is explored to establish the value it can offer as an alternative which minimises these challenges in today’s organisations. Organisation Development originated during the early 1950s and has evolved, adapted and changed dramatically since then. Two classical Organisation Development processes, Lewin’s 3-Step model and the Action Research spiral, are described, and typical challenges of applying them in today’s organisations are outlined. To remain competitive, organisations need to identify, adjust, and adapt to changing circumstances. These changing circumstances are constant and are due to increasingly complex demands from technological, economic, managerial, and cultural needs. Appreciative Inquiry as an approach is explored as an alternative Organisation Development process: it shifts the question from ‘what is going wrong’ to ‘what is going right in the organisation’. Appreciative Inquiry consists of the Discovery, Dream, Design and Destiny stages, and searches for the best in people and their organisations. In accordance with the constructionist paradigm, the research offers conclusions through the confirmation of past practices, conversations and relationships combined with creative new methods or experimentation of a positive intended future. The One- Group Pretest-Posttest, as a design, was selected to explore the effect of the variable (the Appreciative Inquiry intervention) in relation to the pre- and post-experimental evaluation. The design consists of an initial engagement (Pretest), the influencing variable (an Appreciative Inquiry intervention) and final engagement (Posttest) with the same group. The research was supported by a mixed method approach, with qualitative data supported by quantitative data. The quantitative data provided a general understanding of how participants experienced the change interventions. The qualitative data provided the information on how respondents experienced Organisation Development before an Appreciative Inquiry intervention and their views after an Appreciative Inquiry intervention. A South African secondary school was selected as a research site. Limited research is available regarding the application of Organisation Development and especially Appreciative Inquiry as a process in schools in general, and in South African schools in particular. A survey questionnaire was the instrument for collecting the quantitative data regarding the participants’ biographical information and change process perceptions. For the collection of qualitative data, interview questionnaires were used. The findings indicate that whereas previous change processes appear to have regarded the various staff levels of the school as separate entities, during the Appreciative Inquiry approach all staff were included as being an integral part of the organisation. The main finding after completion of the Appreciative Inquiry intervention was that collectively discussing and defining issues in a positive light instead of a problem to be solved changes the perspective of participants. Through the application of the Appreciative Inquiry’s four stages, participants were invited to think in a new way by applying innovation, enhancing participation, maintaining a positive core, and providing practical solutions through provocative statements. Conclusions reached from the research are that Appreciative Inquiry is a viable alternative for minimising Organisation Development challenges in contemporary organisations. The conclusions are based on factors such as understanding the reason for change; strong leadership; defining what is a successful intervention; understanding the Appreciative Inquiry process, the value of provocative statements; and the sustainability of change.
- Full Text:
- Date Issued: 2017
- Authors: Van der Merwe, Schalk Willem
- Date: 2017
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/5925 , vital:20990
- Description: The research provides an insight into the main challenges of previous Organisation Development processes, and Appreciative Inquiry is explored to establish the value it can offer as an alternative which minimises these challenges in today’s organisations. Organisation Development originated during the early 1950s and has evolved, adapted and changed dramatically since then. Two classical Organisation Development processes, Lewin’s 3-Step model and the Action Research spiral, are described, and typical challenges of applying them in today’s organisations are outlined. To remain competitive, organisations need to identify, adjust, and adapt to changing circumstances. These changing circumstances are constant and are due to increasingly complex demands from technological, economic, managerial, and cultural needs. Appreciative Inquiry as an approach is explored as an alternative Organisation Development process: it shifts the question from ‘what is going wrong’ to ‘what is going right in the organisation’. Appreciative Inquiry consists of the Discovery, Dream, Design and Destiny stages, and searches for the best in people and their organisations. In accordance with the constructionist paradigm, the research offers conclusions through the confirmation of past practices, conversations and relationships combined with creative new methods or experimentation of a positive intended future. The One- Group Pretest-Posttest, as a design, was selected to explore the effect of the variable (the Appreciative Inquiry intervention) in relation to the pre- and post-experimental evaluation. The design consists of an initial engagement (Pretest), the influencing variable (an Appreciative Inquiry intervention) and final engagement (Posttest) with the same group. The research was supported by a mixed method approach, with qualitative data supported by quantitative data. The quantitative data provided a general understanding of how participants experienced the change interventions. The qualitative data provided the information on how respondents experienced Organisation Development before an Appreciative Inquiry intervention and their views after an Appreciative Inquiry intervention. A South African secondary school was selected as a research site. Limited research is available regarding the application of Organisation Development and especially Appreciative Inquiry as a process in schools in general, and in South African schools in particular. A survey questionnaire was the instrument for collecting the quantitative data regarding the participants’ biographical information and change process perceptions. For the collection of qualitative data, interview questionnaires were used. The findings indicate that whereas previous change processes appear to have regarded the various staff levels of the school as separate entities, during the Appreciative Inquiry approach all staff were included as being an integral part of the organisation. The main finding after completion of the Appreciative Inquiry intervention was that collectively discussing and defining issues in a positive light instead of a problem to be solved changes the perspective of participants. Through the application of the Appreciative Inquiry’s four stages, participants were invited to think in a new way by applying innovation, enhancing participation, maintaining a positive core, and providing practical solutions through provocative statements. Conclusions reached from the research are that Appreciative Inquiry is a viable alternative for minimising Organisation Development challenges in contemporary organisations. The conclusions are based on factors such as understanding the reason for change; strong leadership; defining what is a successful intervention; understanding the Appreciative Inquiry process, the value of provocative statements; and the sustainability of change.
- Full Text:
- Date Issued: 2017
The effects of the type of rest breaks on return-to-task performance in semi-automated tasks with varying complexities
- Authors: Hoyi, Zandile
- Date: 2017
- Subjects: Rest periods , Rest periods -- Physiological effect , Human-robot interaction , Aeronautics -- Human factors , Human engineering , Drowsiness
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/44490 , vital:25412
- Description: Automation in the aviation industry is acknowledged as a useful tool in reducing pilot workload (Hoh, Smith & Hinton, 1987; Beringer & Harris Jr., 1999). Typically, the role of the pilot (operator) shifts from active participation in a process to a task of monitoring the system with the resumption of control should the automation ‘fail’ (Byrne & Parasuraman, 1996). Unfortunately, the skills necessary to do so would likely degrade from non-use, during this process (Landry, 2012). This project investigates the “attentional demands” for the human operator during interaction with semi-automated operations of the flight. According to Dr Abbott (1996), FAA human factors specialist, one of the problems causing disharmony between crews and their automated systems is the incorrect upset recovery, owing to the human being out-of-the-loop (OOTL) from the system. Recovery, or rather return to task, is the ability of the pilot to loop back into control, once situational awareness has been decreased due to lack of alertness and a decrease in arousal. Different types of rest tasks are commonly prescribed fatigue countermeasures in the industrial setting and have been showed to elicit beneficial effects on prolonged human performance. Understanding the effects of different rest break activity and time out-of-the-loop during semi-automated flying on return to task performance has been adequately studied, thus highlighting its importance in the context of flight safety. The present study requested participants to perform a tracking task in a laboratory where they changed from activity (30 minutes) to a break (2 vs. 30 minutes) and back to the activity (20 minutes). The task varied in the complexity of the activity (pure tracking vs. tracking plus memory plus rule-based decision making), the type of break (passive rest vs. actively supervising) and the duration of the break (2 minutes vs. 30 minutes). Performance was measured as effective response time in the tracking task and number of correct responses to secondary cognitive tasks. Physiological measures included heart rate (HR), heart rate variability (HRV- time and frequency-domain), eye blink frequency and duration. The Karolinska Sleepiness Scale was used as a subjective measure. With regards to the most appropriate rest break tasks, the study concluded that active, administrative tasks, which allowed the operator to maintain some form of situational awareness by monitoring the automated system, achieved favourable effects of being more alert than the passive rest break of being disengaged from the system. In terms of the most appropriate rest break durations, the shorter duration of being out-of-the-loop from controlling the system proved to be more advantageous than the longer out-of-the-loop duration. In looking at the workload levels of arousal, the results suggest that the higher workload level is better at maintaining the alertness of operators. This study functions as a foundational framework for future investigations around the topic of human-automation interaction, looking specifically at return-to-task performance.
- Full Text:
- Date Issued: 2017
- Authors: Hoyi, Zandile
- Date: 2017
- Subjects: Rest periods , Rest periods -- Physiological effect , Human-robot interaction , Aeronautics -- Human factors , Human engineering , Drowsiness
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/44490 , vital:25412
- Description: Automation in the aviation industry is acknowledged as a useful tool in reducing pilot workload (Hoh, Smith & Hinton, 1987; Beringer & Harris Jr., 1999). Typically, the role of the pilot (operator) shifts from active participation in a process to a task of monitoring the system with the resumption of control should the automation ‘fail’ (Byrne & Parasuraman, 1996). Unfortunately, the skills necessary to do so would likely degrade from non-use, during this process (Landry, 2012). This project investigates the “attentional demands” for the human operator during interaction with semi-automated operations of the flight. According to Dr Abbott (1996), FAA human factors specialist, one of the problems causing disharmony between crews and their automated systems is the incorrect upset recovery, owing to the human being out-of-the-loop (OOTL) from the system. Recovery, or rather return to task, is the ability of the pilot to loop back into control, once situational awareness has been decreased due to lack of alertness and a decrease in arousal. Different types of rest tasks are commonly prescribed fatigue countermeasures in the industrial setting and have been showed to elicit beneficial effects on prolonged human performance. Understanding the effects of different rest break activity and time out-of-the-loop during semi-automated flying on return to task performance has been adequately studied, thus highlighting its importance in the context of flight safety. The present study requested participants to perform a tracking task in a laboratory where they changed from activity (30 minutes) to a break (2 vs. 30 minutes) and back to the activity (20 minutes). The task varied in the complexity of the activity (pure tracking vs. tracking plus memory plus rule-based decision making), the type of break (passive rest vs. actively supervising) and the duration of the break (2 minutes vs. 30 minutes). Performance was measured as effective response time in the tracking task and number of correct responses to secondary cognitive tasks. Physiological measures included heart rate (HR), heart rate variability (HRV- time and frequency-domain), eye blink frequency and duration. The Karolinska Sleepiness Scale was used as a subjective measure. With regards to the most appropriate rest break tasks, the study concluded that active, administrative tasks, which allowed the operator to maintain some form of situational awareness by monitoring the automated system, achieved favourable effects of being more alert than the passive rest break of being disengaged from the system. In terms of the most appropriate rest break durations, the shorter duration of being out-of-the-loop from controlling the system proved to be more advantageous than the longer out-of-the-loop duration. In looking at the workload levels of arousal, the results suggest that the higher workload level is better at maintaining the alertness of operators. This study functions as a foundational framework for future investigations around the topic of human-automation interaction, looking specifically at return-to-task performance.
- Full Text:
- Date Issued: 2017
The effect of gold price volatility on stock market returns in South Africa
- Authors: Gcadana, Nqabisa Mary
- Date: 2017
- Subjects: Stock exchanges --South Africa.
- Language: English
- Type: Thesis , Masters , MCom (Economics)
- Identifier: http://hdl.handle.net/10353/13359 , vital:39637
- Description: The South African stock market has become a major player in the African Securities Exchanges Association through its performance. Gold is one of the commodities that are traded at Johannesburg Stock Exchange, hence gold price fluctuations are the crucial factor that JSE needs to keep its eye on. The demand for gold in South Africa is continuously rising because gold has full security, less credit risk and is a highly liquid instrument. Based on the given background, the study examines the effect of gold price volatility on stock market returns in South Africa, employing the Generalised Autoregressive Conditional Heteroskedasticity (GARCH) (1.1) model. The study used monthly data covering the period from 2005 to 2017. The Storage model and discounted cash flows model which are the theories that connect gold price and stock market were specified. The research findings are supported by previous studies. The gold price volatility was found to have a negative effect on stock market returns, and the proxy of stock market returns is the All Share Index. The study will help to provide an understanding of how gold price volatility affects the stock market that will help policymakers to come up with policies that are relevant to volatility of gold price towards stock market.
- Full Text:
- Date Issued: 2017
- Authors: Gcadana, Nqabisa Mary
- Date: 2017
- Subjects: Stock exchanges --South Africa.
- Language: English
- Type: Thesis , Masters , MCom (Economics)
- Identifier: http://hdl.handle.net/10353/13359 , vital:39637
- Description: The South African stock market has become a major player in the African Securities Exchanges Association through its performance. Gold is one of the commodities that are traded at Johannesburg Stock Exchange, hence gold price fluctuations are the crucial factor that JSE needs to keep its eye on. The demand for gold in South Africa is continuously rising because gold has full security, less credit risk and is a highly liquid instrument. Based on the given background, the study examines the effect of gold price volatility on stock market returns in South Africa, employing the Generalised Autoregressive Conditional Heteroskedasticity (GARCH) (1.1) model. The study used monthly data covering the period from 2005 to 2017. The Storage model and discounted cash flows model which are the theories that connect gold price and stock market were specified. The research findings are supported by previous studies. The gold price volatility was found to have a negative effect on stock market returns, and the proxy of stock market returns is the All Share Index. The study will help to provide an understanding of how gold price volatility affects the stock market that will help policymakers to come up with policies that are relevant to volatility of gold price towards stock market.
- Full Text:
- Date Issued: 2017