Multirotor UAV-based autonomous rural security system
- Welgemoed, Jacques Christian
- Authors: Welgemoed, Jacques Christian
- Date: 2022-04
- Subjects: Mechatronics , Computer security -- Software
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58544 , vital:59761
- Description: This dissertation presents the development, implementation and experimental verification of a multirator UAV-based autonomous rural security system. this system is capable of autonomously responding to security-related events, broadcasting and analysing a video feed of the event, returning to a home position, and performing a precision landing using onbroad intelligence, computer vision, and state-of-the-art flight control software. this research is intended to address some of the issues associated with security in rural areas, for example, farmlands by providing a rapid response mechanism. An integrated hardware and software architecture was developed to achieve the aim and objectives of this research. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Welgemoed, Jacques Christian
- Date: 2022-04
- Subjects: Mechatronics , Computer security -- Software
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58544 , vital:59761
- Description: This dissertation presents the development, implementation and experimental verification of a multirator UAV-based autonomous rural security system. this system is capable of autonomously responding to security-related events, broadcasting and analysing a video feed of the event, returning to a home position, and performing a precision landing using onbroad intelligence, computer vision, and state-of-the-art flight control software. this research is intended to address some of the issues associated with security in rural areas, for example, farmlands by providing a rapid response mechanism. An integrated hardware and software architecture was developed to achieve the aim and objectives of this research. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
Ownership and occupation contestations in South Africa: the case of state housing in Buffalo City Municipality, Eastern Cape
- Authors: Msindo, Esteri Makotore
- Date: 2022-04
- Subjects: Public housing South Africa Buffalo City , Squatters South Africa Buffalo City , Occupancy (Law) South Africa , Acquisition of property South Africa Buffalo City , Right of property South Africa Buffalo City , Sociology, Urban South Africa Buffalo City , Marginality, Social South Africa Buffalo City , Human rights South Africa , Acquisition of property Moral and ethical aspects South Africa Buffalo City , Urban poor South Africa Buffalo City Social conditions
- Language: English
- Type: Doctoral thesis , text
- Identifier: http://hdl.handle.net/10962/232790 , vital:50025 , DOI 10.21504/10962/232790
- Description: This thesis examines contestations around access to state-provided housing or simply state housing in South Africa, using a case study of two sites in Buffalo City Municipality, and with a particular focus on occupation without ownership through informal and illegal means. While the South African state, based on an official human rights discourse and regime, seeks to provide state housing to the urban poor, massive housing backlogs continue to exist within urban spaces. As a result, the urban poor turn to self-provisioning through the construction of informal settlements or backyard shacks, waiting at times indefinitely to be allocated a state house via the official housing waiting lists. To overcome this problem, some amongst the urban poor opt to circumvent the process by invading and illegally occupying state houses, leading to occupation without ownership. In doing so, they draw upon their own moral rights-claims to justify their actions. The thesis examines the multiple causes for occupation and ownership contestations in the two research sites as well as the different forms that these contestations take. The study is framed theoretically in terms of a sociology of human rights, identifying and analysing how moral claims to rights amongst ordinary people often come into conflict with a legal-institutional conception of rights adopted by the state. The study also draws on a diverse array of theorists whose work speaks to the manner in which ordinary citizens develop their own ways of acting contrary to state officialdom. Using interpretive sociology, the study considers the views and practices of those illegally occupying houses without ownership and those who feel victimised by these informal actions. It considers these intra-community dynamics in light of the machinations of local state powerholders at municipal level. As with interpretive sociology, then, the thesis privileges social realms of meanings, interpretations, experiences and practices of human agents. Informal state housing occupations in the Buffalo City Municipality are caused by a number of factors related to state incapacity, weak policies and poor planning, corruption, resource constraints and so on. The study vividly demonstrates the tensions arising and existing between the South African state’s legal human rights regime and locally-constructed moral-rights regimes amongst the urban poor. This tension is seen in the interrelated phenomena of ‘occupation without ownership’ and ‘ownership without occupation’, as the poor draw upon and use ordinary logics of rights for recourse. The thesis shows how diverse rights regimes lead to intra-community conflict, in particular along generational and racial lines. , Thesis (PhD) -- Humanities, Sociology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Msindo, Esteri Makotore
- Date: 2022-04
- Subjects: Public housing South Africa Buffalo City , Squatters South Africa Buffalo City , Occupancy (Law) South Africa , Acquisition of property South Africa Buffalo City , Right of property South Africa Buffalo City , Sociology, Urban South Africa Buffalo City , Marginality, Social South Africa Buffalo City , Human rights South Africa , Acquisition of property Moral and ethical aspects South Africa Buffalo City , Urban poor South Africa Buffalo City Social conditions
- Language: English
- Type: Doctoral thesis , text
- Identifier: http://hdl.handle.net/10962/232790 , vital:50025 , DOI 10.21504/10962/232790
- Description: This thesis examines contestations around access to state-provided housing or simply state housing in South Africa, using a case study of two sites in Buffalo City Municipality, and with a particular focus on occupation without ownership through informal and illegal means. While the South African state, based on an official human rights discourse and regime, seeks to provide state housing to the urban poor, massive housing backlogs continue to exist within urban spaces. As a result, the urban poor turn to self-provisioning through the construction of informal settlements or backyard shacks, waiting at times indefinitely to be allocated a state house via the official housing waiting lists. To overcome this problem, some amongst the urban poor opt to circumvent the process by invading and illegally occupying state houses, leading to occupation without ownership. In doing so, they draw upon their own moral rights-claims to justify their actions. The thesis examines the multiple causes for occupation and ownership contestations in the two research sites as well as the different forms that these contestations take. The study is framed theoretically in terms of a sociology of human rights, identifying and analysing how moral claims to rights amongst ordinary people often come into conflict with a legal-institutional conception of rights adopted by the state. The study also draws on a diverse array of theorists whose work speaks to the manner in which ordinary citizens develop their own ways of acting contrary to state officialdom. Using interpretive sociology, the study considers the views and practices of those illegally occupying houses without ownership and those who feel victimised by these informal actions. It considers these intra-community dynamics in light of the machinations of local state powerholders at municipal level. As with interpretive sociology, then, the thesis privileges social realms of meanings, interpretations, experiences and practices of human agents. Informal state housing occupations in the Buffalo City Municipality are caused by a number of factors related to state incapacity, weak policies and poor planning, corruption, resource constraints and so on. The study vividly demonstrates the tensions arising and existing between the South African state’s legal human rights regime and locally-constructed moral-rights regimes amongst the urban poor. This tension is seen in the interrelated phenomena of ‘occupation without ownership’ and ‘ownership without occupation’, as the poor draw upon and use ordinary logics of rights for recourse. The thesis shows how diverse rights regimes lead to intra-community conflict, in particular along generational and racial lines. , Thesis (PhD) -- Humanities, Sociology, 2022
- Full Text:
- Date Issued: 2022-04
Passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa
- Authors: Mthi, Yolokazi
- Date: 2022-04
- Subjects: Bus travel -- South Africa , Bus industry -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57969 , vital:58451
- Description: The transportation industry makes a significant contribution to the economy of the country’s Gross Domestic Product (GDP), national investment and employment, and plays an essential role in people’s daily lives. Within the transportation industry, this study specifically focused on long-distance coach liners. Long-distance coach liners add significant value to South Africa’s economy. However, no research focusing specifically on passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa exists. Thus, the study aims to fill this void by investigating passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa. The five dimensions of an experience, namely aesthetics, entertainment, peace of mind, economic value and efficiency were identified as potential dimensions of measuring passengers’ experience within a long-distance coach liner context to achieve the aim of the study. The study employed convenience and snowballing sampling to identify potential respondents. Primary data was collected utilising an online survey, SurveyMonkey, and 399 useable responses were received. To strengthen the validity of this study, inferential statistics were used to examine exploratory factor analysis to find latent factors. An exploratory factor analysis (EFA) was executed on the 44 items intended to measure the independent and dependent variables. The EFA was executed on the correlation matrix between the items. Five factors were extracted for the independent factors and one factor extracted as a dependent factor. A reliability coefficient (Cronbach’s alpha) was calculated for each factor to estimate the internal consistency of each of the items. The identified factors, with their respective items, were found to be reliable. A one-way analysis of variance (ANOVA) was used to determine whether there were any statistically significant differences between the mean score of selected profile variables (age, occupation, travel purpose and frequency with which respondents had travelled by long-distance coach liner) and the study's identified factors. Multiple regression analysis was used to determine the influence or predictive effect that one or more (independent) variables has concerning the other (dependent) variable. In the current study, multiple regression analysis was utilised to examine the influence of the independent factors on the dependent variable. vi The results showed that there is a statistically significant relationship between factors such as aesthetics, entertainment, peace of mind, economic value and efficiency and passengers’ satisfaction. This implies that all the independent factors influence passengers’ satisfaction. However, only two factors namely efficiency (ꞵ=0.455, p=0.000) and peace of mind (ꞵ=0.552, p=0.000) were found to be significant predictors of passengers’ satisfaction. This implies that when efficiency and peace of mind are improved, customer satisfaction will also increase. Based on the findings of the study, valuable recommendations were highlighted in Chapter 6 of the study. The study will make important contributions. Firstly, the findings will assist long-distance coach liner businesses to improve their competitive position by enhancing the experiences and satisfaction that they offer to passengers. Secondly, the study contributes to the literature on passengers’ experience and satisfaction within the transportation industry in South Africa. Thirdly, the empirical results will serve as a foundation for future research. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Mthi, Yolokazi
- Date: 2022-04
- Subjects: Bus travel -- South Africa , Bus industry -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57969 , vital:58451
- Description: The transportation industry makes a significant contribution to the economy of the country’s Gross Domestic Product (GDP), national investment and employment, and plays an essential role in people’s daily lives. Within the transportation industry, this study specifically focused on long-distance coach liners. Long-distance coach liners add significant value to South Africa’s economy. However, no research focusing specifically on passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa exists. Thus, the study aims to fill this void by investigating passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa. The five dimensions of an experience, namely aesthetics, entertainment, peace of mind, economic value and efficiency were identified as potential dimensions of measuring passengers’ experience within a long-distance coach liner context to achieve the aim of the study. The study employed convenience and snowballing sampling to identify potential respondents. Primary data was collected utilising an online survey, SurveyMonkey, and 399 useable responses were received. To strengthen the validity of this study, inferential statistics were used to examine exploratory factor analysis to find latent factors. An exploratory factor analysis (EFA) was executed on the 44 items intended to measure the independent and dependent variables. The EFA was executed on the correlation matrix between the items. Five factors were extracted for the independent factors and one factor extracted as a dependent factor. A reliability coefficient (Cronbach’s alpha) was calculated for each factor to estimate the internal consistency of each of the items. The identified factors, with their respective items, were found to be reliable. A one-way analysis of variance (ANOVA) was used to determine whether there were any statistically significant differences between the mean score of selected profile variables (age, occupation, travel purpose and frequency with which respondents had travelled by long-distance coach liner) and the study's identified factors. Multiple regression analysis was used to determine the influence or predictive effect that one or more (independent) variables has concerning the other (dependent) variable. In the current study, multiple regression analysis was utilised to examine the influence of the independent factors on the dependent variable. vi The results showed that there is a statistically significant relationship between factors such as aesthetics, entertainment, peace of mind, economic value and efficiency and passengers’ satisfaction. This implies that all the independent factors influence passengers’ satisfaction. However, only two factors namely efficiency (ꞵ=0.455, p=0.000) and peace of mind (ꞵ=0.552, p=0.000) were found to be significant predictors of passengers’ satisfaction. This implies that when efficiency and peace of mind are improved, customer satisfaction will also increase. Based on the findings of the study, valuable recommendations were highlighted in Chapter 6 of the study. The study will make important contributions. Firstly, the findings will assist long-distance coach liner businesses to improve their competitive position by enhancing the experiences and satisfaction that they offer to passengers. Secondly, the study contributes to the literature on passengers’ experience and satisfaction within the transportation industry in South Africa. Thirdly, the empirical results will serve as a foundation for future research. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa
- Authors: Mthi, Yolokazi
- Date: 2022-04
- Subjects: Transportation--South Africa , Buses-South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55679 , vital:53406
- Description: The transportation industry makes a significant contribution to the economy of the country’s Gross Domestic Product (GDP), national investment and employment, and plays an essential role in people’s daily lives. Within the transportation industry, this study specifically focused on long-distance coach liners. Long-distance coach liners add significant value to South Africa’s economy. However, no research focusing specifically on passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa exists. Thus, the study aims to fill this void by investigating passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa. The five dimensions of an experience, namely aesthetics, entertainment, peace of mind, economic value and efficiency were identified as potential dimensions of measuring passengers’ experience within a long-distance coach liner context to achieve the aim of the study. The study employed convenience and snowballing sampling to identify potential respondents. Primary data was collected utilising an online survey, SurveyMonkey, and 399 useable responses were received. To strengthen the validity of this study, inferential statistics were used to examine exploratory factor analysis to find latent factors. An exploratory factor analysis (EFA) was executed on the 44 items intended to measure the independent and dependent variables. The EFA was executed on the correlation matrix between the items. Five factors were extracted for the independent factors and one factor extracted as a dependent factor. A reliability coefficient (Cronbach’s alpha) was calculated for each factor to estimate the internal consistency of each of the items. The identified factors, with their respective items, were found to be reliable. A one-way analysis of variance (ANOVA) was used to determine whether there were any statistically significant differences between the mean score of selected profile variables (age, occupation, travel purpose and frequency with which respondents had travelled by long-distance coach liner) and the study's identified factors. Multiple regression analysis was used to determine the influence or predictive effect that one or more (independent) variables has concerning the other (dependent) variable. In the current study, multiple regression analysis was utilised to examine the influence of the independent factors on the dependent variable. , Thesis (MCom) -- Faculty of Business and Economic Sciences, Marketing Management, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Mthi, Yolokazi
- Date: 2022-04
- Subjects: Transportation--South Africa , Buses-South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55679 , vital:53406
- Description: The transportation industry makes a significant contribution to the economy of the country’s Gross Domestic Product (GDP), national investment and employment, and plays an essential role in people’s daily lives. Within the transportation industry, this study specifically focused on long-distance coach liners. Long-distance coach liners add significant value to South Africa’s economy. However, no research focusing specifically on passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa exists. Thus, the study aims to fill this void by investigating passengers’ perceived experience and satisfaction with long-distance coach liners in South Africa. The five dimensions of an experience, namely aesthetics, entertainment, peace of mind, economic value and efficiency were identified as potential dimensions of measuring passengers’ experience within a long-distance coach liner context to achieve the aim of the study. The study employed convenience and snowballing sampling to identify potential respondents. Primary data was collected utilising an online survey, SurveyMonkey, and 399 useable responses were received. To strengthen the validity of this study, inferential statistics were used to examine exploratory factor analysis to find latent factors. An exploratory factor analysis (EFA) was executed on the 44 items intended to measure the independent and dependent variables. The EFA was executed on the correlation matrix between the items. Five factors were extracted for the independent factors and one factor extracted as a dependent factor. A reliability coefficient (Cronbach’s alpha) was calculated for each factor to estimate the internal consistency of each of the items. The identified factors, with their respective items, were found to be reliable. A one-way analysis of variance (ANOVA) was used to determine whether there were any statistically significant differences between the mean score of selected profile variables (age, occupation, travel purpose and frequency with which respondents had travelled by long-distance coach liner) and the study's identified factors. Multiple regression analysis was used to determine the influence or predictive effect that one or more (independent) variables has concerning the other (dependent) variable. In the current study, multiple regression analysis was utilised to examine the influence of the independent factors on the dependent variable. , Thesis (MCom) -- Faculty of Business and Economic Sciences, Marketing Management, 2022
- Full Text:
- Date Issued: 2022-04
Perceived impacts of Swartkop Nature Reserve on community livelihoods in Motherwell, Gqeberha
- Authors: Pebane, Mpho Arnold
- Date: 2022-04
- Subjects: Nature Reserve -- Gqeberha , Effect of pollution on
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58135 , vital:58589
- Description: This study investigated the perceived impacts of Swartkop Nature Reserve on community livelihoods in Motherwell, Gqeberha in the Eastern Cape of South Africa. The study was motivated by tons of litter and rubble due to neglect of the nature reserve by the community and the municipality. These problems have the potential to cause pollution and ecological degradation. The study was therefore pursued to understand the reasons behind the neglect of the nature reserve, determine how the community is involved in governance and management of the nature reserve and analyse their perceptions about the impact of Swartkop Nature Reserve on their livelihood and community development. The qualitative research methodology was utilised and primary data obtained through self-administered unstructured interviews with thirty-two participants. The participants of the study were from the community of Motherwell; particularly residents of wards 6, 7 and 9. These residents were chosen because of their proximity to the nature reserve and the fact that they are more affected than any other ward that is not as close to the nature reserve. The study found that lack of education and awareness, lack of collaboration between the community and municipality, lack of activism among residents, poor upbringing of some participants are some of the reasons that have contributed towards littering and illegal dumping. Furthermore, failure by the municipality to provide services to the community, especially in collecting refuse and provision of designated landfill, was another finding about what has contributed to the littering on the nature reserve. In terms of impact on livelihoods, the study revealed several activities such as farming, harvesting of medicinal plants, recreational activities, recycling and fishing which could enable the community benefit from the nature reserve. Based on the findings, the study recommends a redeclaration of Swartkop Nature Reserve to incorporate heritage and culture as predominant activities that should take place. Furthermore, it is recommended that the municipality should strive to halt the expansion of the informal settlement and illegal dumping of refuse and rubble in the nature reserve as these are major risks that threaten the biodiversity of the nature reserve. A partnership was proposed between the municipality and the community vi through its Community Trust and Ward-Based Cooperatives as consultative platforms. This partnership between the municipality and community should champion the conservation of the nature reserve which will include reserve management planning, fencing and security, law enforcement, rehabilitation, reintroduction of animals and socio-economic development to create employment and entrepreneurial opportunities for the community of Motherwell. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Pebane, Mpho Arnold
- Date: 2022-04
- Subjects: Nature Reserve -- Gqeberha , Effect of pollution on
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58135 , vital:58589
- Description: This study investigated the perceived impacts of Swartkop Nature Reserve on community livelihoods in Motherwell, Gqeberha in the Eastern Cape of South Africa. The study was motivated by tons of litter and rubble due to neglect of the nature reserve by the community and the municipality. These problems have the potential to cause pollution and ecological degradation. The study was therefore pursued to understand the reasons behind the neglect of the nature reserve, determine how the community is involved in governance and management of the nature reserve and analyse their perceptions about the impact of Swartkop Nature Reserve on their livelihood and community development. The qualitative research methodology was utilised and primary data obtained through self-administered unstructured interviews with thirty-two participants. The participants of the study were from the community of Motherwell; particularly residents of wards 6, 7 and 9. These residents were chosen because of their proximity to the nature reserve and the fact that they are more affected than any other ward that is not as close to the nature reserve. The study found that lack of education and awareness, lack of collaboration between the community and municipality, lack of activism among residents, poor upbringing of some participants are some of the reasons that have contributed towards littering and illegal dumping. Furthermore, failure by the municipality to provide services to the community, especially in collecting refuse and provision of designated landfill, was another finding about what has contributed to the littering on the nature reserve. In terms of impact on livelihoods, the study revealed several activities such as farming, harvesting of medicinal plants, recreational activities, recycling and fishing which could enable the community benefit from the nature reserve. Based on the findings, the study recommends a redeclaration of Swartkop Nature Reserve to incorporate heritage and culture as predominant activities that should take place. Furthermore, it is recommended that the municipality should strive to halt the expansion of the informal settlement and illegal dumping of refuse and rubble in the nature reserve as these are major risks that threaten the biodiversity of the nature reserve. A partnership was proposed between the municipality and the community vi through its Community Trust and Ward-Based Cooperatives as consultative platforms. This partnership between the municipality and community should champion the conservation of the nature reserve which will include reserve management planning, fencing and security, law enforcement, rehabilitation, reintroduction of animals and socio-economic development to create employment and entrepreneurial opportunities for the community of Motherwell. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Perceptions of Role Players in the Pharmaceutical Manufacturing Sector in South Africa Regarding the Proposal of a National Health Insurance System
- Authors: Essex, Laycan
- Date: 2022-04
- Subjects: Pharmaceutical industry -- South Africa , National Health Insurance
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58849 , vital:60218
- Description: The proposed implementation of National Health Insurance (NHI) is attracting considerable interest among healthcare workers, as observed in the large quantity of available literary evidence. The available research is mainly focused on the perceptions of healthcare workers, working under the proposed NHI reform. Based on a literature gap observed in recently published articles on perceptions of healthcare professionals regarding the implementation of NHI, the researcher aimed to assess the opinions of key stakeholders in the pharmaceutical manufacturing sector in South Africa. This study employed a qualitative approach, using semi-structured interviews with key stakeholders employed in the pharmaceutical manufacturing sector. Their perceptions regarding the NHI were analysed and interpreted through thematic analysis in order to determine whether they have a positive or a negative perception towards the introduction of the NHI reform in South Africa. The majority of role players are in full support of NHI and there was a consensus amongst the participants that there will be great opportunities for the pharmaceutical manufacturing sector. Regarding the capabilities relating to capacity to supply, participants felt that South Africa’s pharmaceutical manufacturing sector has sufficient infrastructure to support the roll out of the NHI. Furthermore, participants felt positive about increased accessibility to pharmaceutical care by all South Africans, regardless of race, social and economic status. , Thesis (MA) -- Faculty of Health Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Essex, Laycan
- Date: 2022-04
- Subjects: Pharmaceutical industry -- South Africa , National Health Insurance
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58849 , vital:60218
- Description: The proposed implementation of National Health Insurance (NHI) is attracting considerable interest among healthcare workers, as observed in the large quantity of available literary evidence. The available research is mainly focused on the perceptions of healthcare workers, working under the proposed NHI reform. Based on a literature gap observed in recently published articles on perceptions of healthcare professionals regarding the implementation of NHI, the researcher aimed to assess the opinions of key stakeholders in the pharmaceutical manufacturing sector in South Africa. This study employed a qualitative approach, using semi-structured interviews with key stakeholders employed in the pharmaceutical manufacturing sector. Their perceptions regarding the NHI were analysed and interpreted through thematic analysis in order to determine whether they have a positive or a negative perception towards the introduction of the NHI reform in South Africa. The majority of role players are in full support of NHI and there was a consensus amongst the participants that there will be great opportunities for the pharmaceutical manufacturing sector. Regarding the capabilities relating to capacity to supply, participants felt that South Africa’s pharmaceutical manufacturing sector has sufficient infrastructure to support the roll out of the NHI. Furthermore, participants felt positive about increased accessibility to pharmaceutical care by all South Africans, regardless of race, social and economic status. , Thesis (MA) -- Faculty of Health Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Perceptions of South African original equipment manufacturers about pursuing new global electrical vehicle strategy
- Authors: Mmushi, Thabang
- Date: 2022-04
- Subjects: Electric vehicles , Motor vehicles
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57936 , vital:58429
- Description: Global strategy in the automotive industry focusses on limiting climate changes and preservation of natural resources by gradually shifting towards non-gas emission transportation such as electrical vehicles (EVs). The strategic thinking and planning have advanced significantly globally. Automotive original equipment manufacturers (OEM’s) are responding to this growing demand of EVs by focusing investments on the research and development (R&D) and setting up manufacturing facilities. This EV strategy showed great degree of success already over the past few years. (Nathalie Ortar & Marianne Ryghaug, 2019) In 2013, sales of EVs were introduced in the South African market. The adoption of EVs is very low and existing studies suggest consumer perceptions towards EVs and possible social economic barriers in the South African automotive market prevent the adoption or intention to purchase EVs. The purpose of this research study was to unpack perception withholding the uptake of the EVs manufacturing in South Africa. It aimed to assess the barriers of the local automotive industry in pursuing the global strategy. The research structure was realised through conducting a literature review to explore the existing research topic. Empirical research evidence was obtained through conducting interviews which targeted existing OEMs whom the parent plants are currently manufacturing EVs globally. The study focused on key factors such as consumer knowledge, local infrastructure, and market uncertainty about EVs. The findings of the study highlighted consumers are knowledgeable about the benefits of owning EVs. However, the willingness set up a manufacturing infrastructure for EVs was highly not favourable for a majority of the factors such as power supply shortage, EVs supply chain shortage, small local market, and lack of proactive policies to drive EVs adoption or attract global investment. With these perceived positive opinions from respondents, it is down to government and private companies to work in cohesion to provide a conducive environment for EVs manufacturing in future. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Mmushi, Thabang
- Date: 2022-04
- Subjects: Electric vehicles , Motor vehicles
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57936 , vital:58429
- Description: Global strategy in the automotive industry focusses on limiting climate changes and preservation of natural resources by gradually shifting towards non-gas emission transportation such as electrical vehicles (EVs). The strategic thinking and planning have advanced significantly globally. Automotive original equipment manufacturers (OEM’s) are responding to this growing demand of EVs by focusing investments on the research and development (R&D) and setting up manufacturing facilities. This EV strategy showed great degree of success already over the past few years. (Nathalie Ortar & Marianne Ryghaug, 2019) In 2013, sales of EVs were introduced in the South African market. The adoption of EVs is very low and existing studies suggest consumer perceptions towards EVs and possible social economic barriers in the South African automotive market prevent the adoption or intention to purchase EVs. The purpose of this research study was to unpack perception withholding the uptake of the EVs manufacturing in South Africa. It aimed to assess the barriers of the local automotive industry in pursuing the global strategy. The research structure was realised through conducting a literature review to explore the existing research topic. Empirical research evidence was obtained through conducting interviews which targeted existing OEMs whom the parent plants are currently manufacturing EVs globally. The study focused on key factors such as consumer knowledge, local infrastructure, and market uncertainty about EVs. The findings of the study highlighted consumers are knowledgeable about the benefits of owning EVs. However, the willingness set up a manufacturing infrastructure for EVs was highly not favourable for a majority of the factors such as power supply shortage, EVs supply chain shortage, small local market, and lack of proactive policies to drive EVs adoption or attract global investment. With these perceived positive opinions from respondents, it is down to government and private companies to work in cohesion to provide a conducive environment for EVs manufacturing in future. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Pharmacological, toxicological and phytochemical evaluation of helichrysum petiolare hilliard & b.l. burtt - an indigenous plant traditionally used in the treatment of diabetes in the eastern cape province of South Africa
- Aladejana, Adebowale Emmanuel https://orcid.org/0000-0003-1871-926X
- Authors: Aladejana, Adebowale Emmanuel https://orcid.org/0000-0003-1871-926X
- Date: 2022-04
- Subjects: Diabetes -- Alternative treatment , Traditional medicine , Medicinal plants
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/22787 , vital:52755
- Description: Diabetes mellitus is one of the leading causes of death in South Africa, and it has already placed significant stress on the country’s health sector and economy. The orthodox hypoglycaemic drugs are not only ineffective in the management of the disease and its complications, but they also possess unwanted side effects. The need for alternative non-toxic drugs is therefore imperative. Various studies have listed several medicinal plants that can be successfully used in the herbal treatment of diabetes and have investigated them for their anti-diabetic potentials in vivo and/or in vitro. Out of the different potential herbal species, plants belonging to the Asteraceae family possess highly potent hypoglycaemic properties with negligible toxicities. Five Asteraceae plants widely used in different parts of South Africa for the treatment of diabetes were reviewed. The review provided an update of scientific evidence on the hypoglycaemic properties of the plants. However, Helichrysum petiolare was studied extensively in this study for its antidiabetic activity H. petiolare has been listed in many ethnobotanical surveys as a plant with potent hypoglycaemic potential, this, however, has not been properly verified in scientific literature and there has hardly been any study on the essential oil and nutritional composition, and antioxidant, antidiabetic, and cytotoxicity potentials of the plant. The effects of hydro-distillation (HD) and solvent-free microwave extraction (SFME) methods on the chemical constituents of H. petiolare-derived essential oils were evaluated. The SFME method had a higher yield of essential oil than the HD. There were substantial amounts of monoterpenes, monoterpene alcohols, sesquiterpenes, and sesquiterpene alcohols in both essential oils obtained, but these compounds were more profound in the SFME derived essential oil which has 62 compounds compared to the 52 derived through HD. The SFME derived essential oil can therefore be said to be of better quality than the HD method. The compounds obtained in the essential oils have high pharmaceutical and cosmetic value, and as observed in this study, their quantity is dependent on the method of extraction (Ibáñez and Blázquez, 2021; Kaur et al., 2021). The proximate analysis of the whole plant of H. petiolare showed high levels of Acid Detergent Fibre (ADF), vitamins (A, C and E), Neutral Detergent Fibre (NDF), and minerals. The high ADF level is believed to be responsible for the low energy, fat and carbohydrate levels observed in the study. The result showed a high level of oxalate and therefore suggests cooking of the plant before human consumption. Overall nutrition and mineral compositions of the plant showed that H. petiolare is immensely rich in vital nutrients that are of great importance to health and metabolism; these nutrients are suggested to be partly responsible for the plant’s useful medicinal properties. The phytochemical contents of the acetone (ACQ), ethanol (ETQ), and boiled (BAQ) and cold (CAQ) aqueous whole-plant extracts of Helichrysum petiolare were determined using standard phytochemical reaction methods. ABTS, DPPH, NO and TAC assays were used to evaluate their antioxidant properties. The highest total phenolic content (212,963 mg/g) was reported in the BAQ extract, while the ETQ had the highest flavonoid (172.393 mg/g) and proanthocyanidin contents (65.855 mg/g). Alkaloids, flavonols, and saponin were highest in the ACQ extract, while the CAQ had the lowest phytochemical content. Among the extracts, the BAQ had the highest DPPH•+ (IC50 0.02 mg/mL) and ABTS•+ (IC50 0.07) inhibition capacities, while the ETQ exhibited the highest NO• Inhibition (IC50 0.41 mg/mL) and TAC (IC50 0.19 mg/mL). These findings justify the use of H. petiolare in traditional medicine and further recommend the ETQ and BAQ extracts of the plant as more effective extracts for medicinal treatment. The hepatotoxicity (cytotoxicity, mitotoxicity and lipotoxicity) potential of the BAQ, CAQ and ETQ extracts of Helichrysum petiolare was evaluated using standard procedures. The results showed negligible BAQ and CAQ cytotoxicities, which were further, corroborated by stability in the mitochondrial membrane potentials and were congruent with the CAQ and BAQ results for steatosis and phospholipidosis. The data suggested favourable CAQ and BAQ toxicity profiles with limited risks for hepatotoxicity. The ETQ extract, however, showed significantly high levels of cytotoxicity and lipotoxicity, and a low level of mitotoxicity. Our result suggested a potential risk of the ETQ extract for hepatotoxicity but appears partly independent of direct mitochondrial involvement. Glucose uptake assay showed significantly increased glucose uptake in the BAQ and CAQ treated L6 and C3A cell lines. The CAQ extract enhanced glucose uptake more in the L6 myocytes than in the C3A cell-lines hepatocytes. The BAQ extract showed higher levels of inhibition on α–amylase and α-glucosidase activities as compared to CAQ. The BAQ and CAQ extracts of H. petiolare may, therefore, contain pharmacologically active and relatively non-toxic hypoglycaemic chemicals, which may be effective substitutes in the treatment of diabetes mellitus. This study provides up to date scientific information on the use of H. petiolare in the treatment of diabetes mellitus in the Eastern Cape of South Africa. It justifies the use of this plant in herbal medicine and sheds more light on its previously vaguely understood nutritional and medicinal potentials. More studies, however, need to be done to isolate, identify and purify the constituent bioactive compound(s). Their dosage of application and mode of action also needs to be understood. , Thesis (PhD) -- Faculty of Science and Agriculture, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Aladejana, Adebowale Emmanuel https://orcid.org/0000-0003-1871-926X
- Date: 2022-04
- Subjects: Diabetes -- Alternative treatment , Traditional medicine , Medicinal plants
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/22787 , vital:52755
- Description: Diabetes mellitus is one of the leading causes of death in South Africa, and it has already placed significant stress on the country’s health sector and economy. The orthodox hypoglycaemic drugs are not only ineffective in the management of the disease and its complications, but they also possess unwanted side effects. The need for alternative non-toxic drugs is therefore imperative. Various studies have listed several medicinal plants that can be successfully used in the herbal treatment of diabetes and have investigated them for their anti-diabetic potentials in vivo and/or in vitro. Out of the different potential herbal species, plants belonging to the Asteraceae family possess highly potent hypoglycaemic properties with negligible toxicities. Five Asteraceae plants widely used in different parts of South Africa for the treatment of diabetes were reviewed. The review provided an update of scientific evidence on the hypoglycaemic properties of the plants. However, Helichrysum petiolare was studied extensively in this study for its antidiabetic activity H. petiolare has been listed in many ethnobotanical surveys as a plant with potent hypoglycaemic potential, this, however, has not been properly verified in scientific literature and there has hardly been any study on the essential oil and nutritional composition, and antioxidant, antidiabetic, and cytotoxicity potentials of the plant. The effects of hydro-distillation (HD) and solvent-free microwave extraction (SFME) methods on the chemical constituents of H. petiolare-derived essential oils were evaluated. The SFME method had a higher yield of essential oil than the HD. There were substantial amounts of monoterpenes, monoterpene alcohols, sesquiterpenes, and sesquiterpene alcohols in both essential oils obtained, but these compounds were more profound in the SFME derived essential oil which has 62 compounds compared to the 52 derived through HD. The SFME derived essential oil can therefore be said to be of better quality than the HD method. The compounds obtained in the essential oils have high pharmaceutical and cosmetic value, and as observed in this study, their quantity is dependent on the method of extraction (Ibáñez and Blázquez, 2021; Kaur et al., 2021). The proximate analysis of the whole plant of H. petiolare showed high levels of Acid Detergent Fibre (ADF), vitamins (A, C and E), Neutral Detergent Fibre (NDF), and minerals. The high ADF level is believed to be responsible for the low energy, fat and carbohydrate levels observed in the study. The result showed a high level of oxalate and therefore suggests cooking of the plant before human consumption. Overall nutrition and mineral compositions of the plant showed that H. petiolare is immensely rich in vital nutrients that are of great importance to health and metabolism; these nutrients are suggested to be partly responsible for the plant’s useful medicinal properties. The phytochemical contents of the acetone (ACQ), ethanol (ETQ), and boiled (BAQ) and cold (CAQ) aqueous whole-plant extracts of Helichrysum petiolare were determined using standard phytochemical reaction methods. ABTS, DPPH, NO and TAC assays were used to evaluate their antioxidant properties. The highest total phenolic content (212,963 mg/g) was reported in the BAQ extract, while the ETQ had the highest flavonoid (172.393 mg/g) and proanthocyanidin contents (65.855 mg/g). Alkaloids, flavonols, and saponin were highest in the ACQ extract, while the CAQ had the lowest phytochemical content. Among the extracts, the BAQ had the highest DPPH•+ (IC50 0.02 mg/mL) and ABTS•+ (IC50 0.07) inhibition capacities, while the ETQ exhibited the highest NO• Inhibition (IC50 0.41 mg/mL) and TAC (IC50 0.19 mg/mL). These findings justify the use of H. petiolare in traditional medicine and further recommend the ETQ and BAQ extracts of the plant as more effective extracts for medicinal treatment. The hepatotoxicity (cytotoxicity, mitotoxicity and lipotoxicity) potential of the BAQ, CAQ and ETQ extracts of Helichrysum petiolare was evaluated using standard procedures. The results showed negligible BAQ and CAQ cytotoxicities, which were further, corroborated by stability in the mitochondrial membrane potentials and were congruent with the CAQ and BAQ results for steatosis and phospholipidosis. The data suggested favourable CAQ and BAQ toxicity profiles with limited risks for hepatotoxicity. The ETQ extract, however, showed significantly high levels of cytotoxicity and lipotoxicity, and a low level of mitotoxicity. Our result suggested a potential risk of the ETQ extract for hepatotoxicity but appears partly independent of direct mitochondrial involvement. Glucose uptake assay showed significantly increased glucose uptake in the BAQ and CAQ treated L6 and C3A cell lines. The CAQ extract enhanced glucose uptake more in the L6 myocytes than in the C3A cell-lines hepatocytes. The BAQ extract showed higher levels of inhibition on α–amylase and α-glucosidase activities as compared to CAQ. The BAQ and CAQ extracts of H. petiolare may, therefore, contain pharmacologically active and relatively non-toxic hypoglycaemic chemicals, which may be effective substitutes in the treatment of diabetes mellitus. This study provides up to date scientific information on the use of H. petiolare in the treatment of diabetes mellitus in the Eastern Cape of South Africa. It justifies the use of this plant in herbal medicine and sheds more light on its previously vaguely understood nutritional and medicinal potentials. More studies, however, need to be done to isolate, identify and purify the constituent bioactive compound(s). Their dosage of application and mode of action also needs to be understood. , Thesis (PhD) -- Faculty of Science and Agriculture, 2022
- Full Text:
- Date Issued: 2022-04
Phytochemical investigation and antidiabetic activity of cissampelos capensis and strychnos henningsii the Eastern Cape medicinal plants
- Authors: Latolla, Nehemiah Solomon
- Date: 2022-04
- Subjects: Medicinal plants -- Eastern Cape (South Africa) , Endemic plants -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/56145 , vital:55956
- Description: Diabetes mellitus is recorded as a significant health crisis in South Africa and various medicinal plants are used for the management of diabetes. However, the chemistry and bioactivity associated with these plants' antidiabetic activity are still lacking. Cissampelos capensis L.f. and Strychnos henningsii Gilg are among the plants utilised to manage diabetes in the Eastern Cape Province, South Africa. C. capensis and S. henningsii are known for their isoquinoline – and indole alkaloids, respectively. Other phytochemical groups associated with antidiabetic activity are the phenols, flavonoids, and terpenes. Thus, this study aimed to evaluate in-depth the phytochemical profiling, alkaloidal identification, and structural characterisation of phytochemicals isolated from these plants. Also, subsequent in vitro antidiabetic screening of the crude extracts and isolated compounds from both plants was done. The phytochemical profiling was performed by employing a qualitative and quantitative approach through high-performance thin layer chromatography (HPTLC) and UV-spectrometry. Further analysis for the identification of alkaloids was done by using LCMS. Fractionation and purification of crude extracts were achieved through crystallisation and various chromatographic techniques. NMR, HRMS, UV/Vis, FTIR, and XRD spectroscopic techniques were used to characterise isolated compounds. In vitro antidiabetic activity screening involved the investigation of cytotoxicity, antioxidant activity, alpha-amylase – and/or alpha-glucosidase inhibition (particular to type II diabetes). C. capensis and S. henningsii extracts tested positive for alkaloids, phenolics, flavonoids, and terpenes through HPTLC screening. Quantitative estimation by UV spectrometry of these phytochemical groups detected the highest concentration of alkaloids, followed by flavonoids, phenolics, and terpenes content. The in vitro antidiabetic biological screening of the various crude extracts suggested that the presence of alkaloids, flavonoids, phenolics, and terpenes fostered favourable biological activity. The LCMS of the known alkaloidal constituents from C. capensis detected the presence of ten alkaloids, including glaziovine, lauroscholtzine, pronuciferine and vi salutardine. Seven known alkaloids and one triterpene were detected from S. henningsii, including holtsiine, 23-hdroxyspermostrychnine, henningsiine, and the triterpene, friedelin. These findings suggest that C. capensis and S. henningsii have similar phytochemical constituents compared to the species reported in literature. However, the distribution of the phytochemicals in the various plant parts differed from previous accounts. , Thesis (PhD) -- Faculty of Science,School of Biomecular and Chemical Sciences , 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Latolla, Nehemiah Solomon
- Date: 2022-04
- Subjects: Medicinal plants -- Eastern Cape (South Africa) , Endemic plants -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/56145 , vital:55956
- Description: Diabetes mellitus is recorded as a significant health crisis in South Africa and various medicinal plants are used for the management of diabetes. However, the chemistry and bioactivity associated with these plants' antidiabetic activity are still lacking. Cissampelos capensis L.f. and Strychnos henningsii Gilg are among the plants utilised to manage diabetes in the Eastern Cape Province, South Africa. C. capensis and S. henningsii are known for their isoquinoline – and indole alkaloids, respectively. Other phytochemical groups associated with antidiabetic activity are the phenols, flavonoids, and terpenes. Thus, this study aimed to evaluate in-depth the phytochemical profiling, alkaloidal identification, and structural characterisation of phytochemicals isolated from these plants. Also, subsequent in vitro antidiabetic screening of the crude extracts and isolated compounds from both plants was done. The phytochemical profiling was performed by employing a qualitative and quantitative approach through high-performance thin layer chromatography (HPTLC) and UV-spectrometry. Further analysis for the identification of alkaloids was done by using LCMS. Fractionation and purification of crude extracts were achieved through crystallisation and various chromatographic techniques. NMR, HRMS, UV/Vis, FTIR, and XRD spectroscopic techniques were used to characterise isolated compounds. In vitro antidiabetic activity screening involved the investigation of cytotoxicity, antioxidant activity, alpha-amylase – and/or alpha-glucosidase inhibition (particular to type II diabetes). C. capensis and S. henningsii extracts tested positive for alkaloids, phenolics, flavonoids, and terpenes through HPTLC screening. Quantitative estimation by UV spectrometry of these phytochemical groups detected the highest concentration of alkaloids, followed by flavonoids, phenolics, and terpenes content. The in vitro antidiabetic biological screening of the various crude extracts suggested that the presence of alkaloids, flavonoids, phenolics, and terpenes fostered favourable biological activity. The LCMS of the known alkaloidal constituents from C. capensis detected the presence of ten alkaloids, including glaziovine, lauroscholtzine, pronuciferine and vi salutardine. Seven known alkaloids and one triterpene were detected from S. henningsii, including holtsiine, 23-hdroxyspermostrychnine, henningsiine, and the triterpene, friedelin. These findings suggest that C. capensis and S. henningsii have similar phytochemical constituents compared to the species reported in literature. However, the distribution of the phytochemicals in the various plant parts differed from previous accounts. , Thesis (PhD) -- Faculty of Science,School of Biomecular and Chemical Sciences , 2022
- Full Text:
- Date Issued: 2022-04
Port performance and the unexplored perceptions linked to operational outputs
- Authors: Woods, Ryan
- Date: 2022-04
- Subjects: Container terminals , Pressure vessels
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58257 , vital:58801
- Description: The role that container terminals play in global trade and building the economies of many countries, requires high levels of performance and efficient turnaround of container vessels. High performance entails providing fast, reliable and efficient port services which is a non-negotiable pre-requisite from the port’s customers. Existing port customers are the shipping lines that make use of the port systems to service their own respective business customers that make use of their shipping services. Transnet and more specifically, Ngqura Container Terminal (NCT) has always been known for providing fast, reliable and efficient port services since its opening in October 2009, with new state of the art equipment and the latest in port operating systems. Fast forward twelve years later and a steady decline in port performance and port efficiencies over the years, has led to numerous outcries from port users and the industry as a whole. Shipping lines are not satisfied with current performance levels and other port users such as trucking companies struggle with bad port performance and efficiencies. This prompted the need to look into why the performance levels has been steadily declining over the past few years. With increased pressure from shipping lines and other stakeholders, there is a glaring need to improve on port performance and efficiencies if NCT is to maintain the business it currently has. Change is also necessary for it to compete for new business which is one of the reasons that prompted this research study. A literature study and a survey questionnaire make up the main input for this research as well as interviews with key operations and planning managers. The purpose of the research was to explore the non-technical factors perceived by NCT operational and planning staff, to have an impact on port performance and the decline thereof. This study focused on the perceptions of NCT’s operational and planning staff of port performance and the perceived impact that reward and recognition, rest periods, job design and leadership have on that performance levels. The methodology used in the research is a mixed-method approach with the quantitative portion underpinned by a survey questionnaire and the iv qualitative portion underpinned by interviews conducted with key management staff. The data was measured and interpreted using descriptive statistics and analysis of the mean scores. The Pearson’s Correlation Coefficient was used to determine if there were relationships between the factors and the significance of those relationships, if any. An Anova analysis was done on the mean score answer of each category of operational staff in the quantitative sample, to determine if the mean score of the different operational categories in my sample are statistically significantly different from each other. The need for drastic improvement of performance outputs in Transnet and more specifically NCT has been highlighted throughout the research as it is of critical importance due to the nature of NCT’s business model of being a transhipment hub. This study has contributed positively by demonstrating the operational staffers and management’s willing responses in an effort to improve performance outputs on both technical and non-technical levels. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Woods, Ryan
- Date: 2022-04
- Subjects: Container terminals , Pressure vessels
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58257 , vital:58801
- Description: The role that container terminals play in global trade and building the economies of many countries, requires high levels of performance and efficient turnaround of container vessels. High performance entails providing fast, reliable and efficient port services which is a non-negotiable pre-requisite from the port’s customers. Existing port customers are the shipping lines that make use of the port systems to service their own respective business customers that make use of their shipping services. Transnet and more specifically, Ngqura Container Terminal (NCT) has always been known for providing fast, reliable and efficient port services since its opening in October 2009, with new state of the art equipment and the latest in port operating systems. Fast forward twelve years later and a steady decline in port performance and port efficiencies over the years, has led to numerous outcries from port users and the industry as a whole. Shipping lines are not satisfied with current performance levels and other port users such as trucking companies struggle with bad port performance and efficiencies. This prompted the need to look into why the performance levels has been steadily declining over the past few years. With increased pressure from shipping lines and other stakeholders, there is a glaring need to improve on port performance and efficiencies if NCT is to maintain the business it currently has. Change is also necessary for it to compete for new business which is one of the reasons that prompted this research study. A literature study and a survey questionnaire make up the main input for this research as well as interviews with key operations and planning managers. The purpose of the research was to explore the non-technical factors perceived by NCT operational and planning staff, to have an impact on port performance and the decline thereof. This study focused on the perceptions of NCT’s operational and planning staff of port performance and the perceived impact that reward and recognition, rest periods, job design and leadership have on that performance levels. The methodology used in the research is a mixed-method approach with the quantitative portion underpinned by a survey questionnaire and the iv qualitative portion underpinned by interviews conducted with key management staff. The data was measured and interpreted using descriptive statistics and analysis of the mean scores. The Pearson’s Correlation Coefficient was used to determine if there were relationships between the factors and the significance of those relationships, if any. An Anova analysis was done on the mean score answer of each category of operational staff in the quantitative sample, to determine if the mean score of the different operational categories in my sample are statistically significantly different from each other. The need for drastic improvement of performance outputs in Transnet and more specifically NCT has been highlighted throughout the research as it is of critical importance due to the nature of NCT’s business model of being a transhipment hub. This study has contributed positively by demonstrating the operational staffers and management’s willing responses in an effort to improve performance outputs on both technical and non-technical levels. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Potential suppressive effects of alien Acacia melanoxylon on Afrotemperate Forest tree recruitment
- Miles, Bayleigh, Baard, Johan
- Authors: Miles, Bayleigh , Baard, Johan
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55391 , vital:51989
- Description: Acacia melanoxylon R.Br. is a prominent alien and invasive species in many parts of the world and evidence exists of its adverse effects on indigenous forest community composition through allelopathy and alteration of light regimes. The species also occurs extensively in Southern Cape Afrotemperate Forest (South Africa) and is thought to suppress indigenous Afrotemperate Forest tree seedlings through various mechanisms such as the alteration of natural light regimes or allelopathy, although this has not been rigorously verified. This study aimed to investigate whether Acacia melanoxylon has a suppressive effect on Afrotemperate Forest tree recruitment. Firstly, we assessed the potential allelopathic effect of Acacia melanoxylon and an indigenous Afrotemperate Forest species Olea capensis macrocarpa (C.H.Wright) I.Verd. on the germination of Acacia melanoxylon and three prominent indigenous tree species’ seedlings in a nursery trial. Germination of the indigenous species failed; however, we were able to compare the germination of Acacia melanoxylon among the three treatments, namely Acacia melanoxylon leachate, Olea capensis leachate, and no leachate. The average germination of Acacia melanoxylon was 67% and germination was marginally higher under Acacia melanoxylon leachate and Olea capensis leachate, respectively, than under the control. This suggested that germination of the species is improved, or at the least, unaffected, by leachates of itself or that of a common indigenous canopy species. We then critically evaluated the germination requirements of the indigenous test species to determine probable reasons why their germination failed in our trial. The most plausible explanation for the germination failure could be that the trial period did not encompass an entire winter season and may not have provided adequate cold stratification. We concluded that the lack of sensitivity of Acacia melanoxylon to leachates of itself or a common indigenous overstorey species likely contribute to its success as an invasive species in Southern Cape Afrotemperate Forest. Secondly, we investigated, through field surveys, whether Acacia melanoxylon affects indigenous Afrotemperate Forest tree sapling composition and light regimes underneath its canopy. Using a paired plot design, we compared light intensity, tree sapling species richness, diversity, and density underneath 30 overstorey Acacia melanoxylon trees and 30 indigenous counterparts. We recorded 2506 indigenous tree saplings from 29 species in the 60 plots and found that there were no significant differences in richness, diversity, or v density of saplings underneath Acacia melanoxylon compared to that under indigenous counterparts. Light intensity did not differ significantly underneath Acacia melanoxylon and indigenous canopies, however light intensity varied significantly more underneath the canopies of Acacia melanoxylon. Canonical correspondence analysis of the abundance of sapling species confirmed that sapling composition was not largely determined by the overstorey species. We concluded that Acacia melanoxylon does not significantly alter indigenous tree species composition underneath its canopy at the typical densities (<3 trees per hectare) at which it occurred in the forests of the Garden Route National Park that we surveyed. Nevertheless, populations of Acacia melanoxylon in the forest interior still act as a source of propagules for invasion in forest margins, riparian areas, and neighbouring fynbos shrubland. These invasive attributes need to be considered in the management of the species in the region at large. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Miles, Bayleigh , Baard, Johan
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55391 , vital:51989
- Description: Acacia melanoxylon R.Br. is a prominent alien and invasive species in many parts of the world and evidence exists of its adverse effects on indigenous forest community composition through allelopathy and alteration of light regimes. The species also occurs extensively in Southern Cape Afrotemperate Forest (South Africa) and is thought to suppress indigenous Afrotemperate Forest tree seedlings through various mechanisms such as the alteration of natural light regimes or allelopathy, although this has not been rigorously verified. This study aimed to investigate whether Acacia melanoxylon has a suppressive effect on Afrotemperate Forest tree recruitment. Firstly, we assessed the potential allelopathic effect of Acacia melanoxylon and an indigenous Afrotemperate Forest species Olea capensis macrocarpa (C.H.Wright) I.Verd. on the germination of Acacia melanoxylon and three prominent indigenous tree species’ seedlings in a nursery trial. Germination of the indigenous species failed; however, we were able to compare the germination of Acacia melanoxylon among the three treatments, namely Acacia melanoxylon leachate, Olea capensis leachate, and no leachate. The average germination of Acacia melanoxylon was 67% and germination was marginally higher under Acacia melanoxylon leachate and Olea capensis leachate, respectively, than under the control. This suggested that germination of the species is improved, or at the least, unaffected, by leachates of itself or that of a common indigenous canopy species. We then critically evaluated the germination requirements of the indigenous test species to determine probable reasons why their germination failed in our trial. The most plausible explanation for the germination failure could be that the trial period did not encompass an entire winter season and may not have provided adequate cold stratification. We concluded that the lack of sensitivity of Acacia melanoxylon to leachates of itself or a common indigenous overstorey species likely contribute to its success as an invasive species in Southern Cape Afrotemperate Forest. Secondly, we investigated, through field surveys, whether Acacia melanoxylon affects indigenous Afrotemperate Forest tree sapling composition and light regimes underneath its canopy. Using a paired plot design, we compared light intensity, tree sapling species richness, diversity, and density underneath 30 overstorey Acacia melanoxylon trees and 30 indigenous counterparts. We recorded 2506 indigenous tree saplings from 29 species in the 60 plots and found that there were no significant differences in richness, diversity, or v density of saplings underneath Acacia melanoxylon compared to that under indigenous counterparts. Light intensity did not differ significantly underneath Acacia melanoxylon and indigenous canopies, however light intensity varied significantly more underneath the canopies of Acacia melanoxylon. Canonical correspondence analysis of the abundance of sapling species confirmed that sapling composition was not largely determined by the overstorey species. We concluded that Acacia melanoxylon does not significantly alter indigenous tree species composition underneath its canopy at the typical densities (<3 trees per hectare) at which it occurred in the forests of the Garden Route National Park that we surveyed. Nevertheless, populations of Acacia melanoxylon in the forest interior still act as a source of propagules for invasion in forest margins, riparian areas, and neighbouring fynbos shrubland. These invasive attributes need to be considered in the management of the species in the region at large. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2022
- Full Text:
- Date Issued: 2022-04
Provision of sustainable sanitation services in an informal settlement in the Nelson Mandela Bay Metropole
- Authors: Nyila, Zoliswa
- Date: 2022-04
- Subjects: informal settlement , Sanitation
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58429 , vital:59211
- Description: The aim of the study is to investigate the underlying issues informing the provision of sustainable sanitation within an informal settlement within the NMBM. The analysis in this research is based on the premise that the Nelson Mandela Bay Municipality (NMBM), alongside other municipalities, might face the challenge of having to ensure that sustainable sanitation is provided in its own informal settlements. The research followed the assumption that municipalities of this country could deliver proper sanitation to informal settlements without difficulty if most informal settlements were not built on undesirable and unsuitable land for housing development. The study also assumed that proper sanitation could be delivered by municipalities if the budget allocation to implement, operate and maintain basic sanitation facilities was sufficient, and there were effective public participation processes and socio-economic and environmental assessments in place. The research demanded a concise literature analysis of the sustainable sanitation service required for informal settlements under the current local authority growth mandate. The quantitative survey and analysis approach that was applied in the research process with an explanation of the distribution and administering of the research questionnaire and observations used to collect field information, are presented. The results of the evidential study are statistically analysed, assessed, and reported. Most of the results on the reasons for the lack of sanitation reflect, among other things, a lack of public participation and meaningful relations between the community and municipal officials, unfamiliarity with the required standard of services, not being educated about the services and how to use the rolled-out services, and not being able to afford basic services. Recommendations include strengthening public participation procedures, creating awareness and training initiatives for the residents on the proper utilisation of public services, being visible to the community, and implementing infrastructure projects that will create job opportunities. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Nyila, Zoliswa
- Date: 2022-04
- Subjects: informal settlement , Sanitation
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58429 , vital:59211
- Description: The aim of the study is to investigate the underlying issues informing the provision of sustainable sanitation within an informal settlement within the NMBM. The analysis in this research is based on the premise that the Nelson Mandela Bay Municipality (NMBM), alongside other municipalities, might face the challenge of having to ensure that sustainable sanitation is provided in its own informal settlements. The research followed the assumption that municipalities of this country could deliver proper sanitation to informal settlements without difficulty if most informal settlements were not built on undesirable and unsuitable land for housing development. The study also assumed that proper sanitation could be delivered by municipalities if the budget allocation to implement, operate and maintain basic sanitation facilities was sufficient, and there were effective public participation processes and socio-economic and environmental assessments in place. The research demanded a concise literature analysis of the sustainable sanitation service required for informal settlements under the current local authority growth mandate. The quantitative survey and analysis approach that was applied in the research process with an explanation of the distribution and administering of the research questionnaire and observations used to collect field information, are presented. The results of the evidential study are statistically analysed, assessed, and reported. Most of the results on the reasons for the lack of sanitation reflect, among other things, a lack of public participation and meaningful relations between the community and municipal officials, unfamiliarity with the required standard of services, not being educated about the services and how to use the rolled-out services, and not being able to afford basic services. Recommendations include strengthening public participation procedures, creating awareness and training initiatives for the residents on the proper utilisation of public services, being visible to the community, and implementing infrastructure projects that will create job opportunities. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
Re-industrialisation of the Nelson Mandela Metropole regional economy
- Authors: Sipuka, Msingathi
- Date: 2022-04
- Subjects: Economic growth , Economic development -- Nelson Mandela
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/58190 , vital:58675
- Description: The main assumption underlying this study is that structural change brings about growth and in turn translates to poverty reduction through the expansion of labour absorbing economic sectors and employment in higher productivity non-primary sectors. Since labour productivity in non-primary sectors is higher, the large-scale migration of labour out of primary activity should raise labour incomes and result in poverty reducing growth. Economic growth driven by structural change in income and employment should therefore aid and promote poverty reduction. Notwithstanding the important role of the national sphere of government in setting the industrial policy framework in the country, this research places emphasis on the role and contribution of regional economies in translating active industrial policy into implementation and development results. In South Africa the rise in poverty can be partially attributed to an economy that is not growing at the required rates needed to, among others, create the necessary employment opportunities at scale. The ability to adequately respond to these national development challenges depends on key economic regions in the country unlocking growth in several economic sectors, in particular the manufacturing sector which is described as labour-intensive and with a high multiplier effect on the economy. To this end, the capacity of regional governments working with regional stakeholders to plan, coordinate, implement and provide oversight over integrated regional industrialisation strategies and implementation plans becomes pivotal. Equally, the Nelson Mandela Metropole, which is the geographic area of focus for this study, has identified and prioritised the growth of the manufacturing sector as one of its economic priorities, reflecting its ambition of driving a programme of re-industrialisation and positioning the region as one of the country’s industrial centres. The main proposition of this study is that the Nelson Mandela Metropole, like other regional economies in the country, is not able to drive the programme of re-industrialisation. The reason for this inability is that it does not have a coherent framework of levers that are at the disposal of regional governments and regional stakeholders to design and implement a programme of re-industrialisation within the ii context of a globalised economy but that takes into consideration national peculiarities of the manufacturing sector. The fact that the regions do not have an integrated regional implementation plan for reviving the manufacturing sector creates an eco-system where there is limited coordination of the actions of different role players, in turn limiting collaboration within the region. The research has identified a gap in the literature between the two areas that impact on this study, namely, industrial development and regional economic development. The study navigates the literature across these two areas to emerge with a synthesised framework of strategic enablers for industrialisation at a regional level. These strategic enablers can be used by regional governments to develop an integrated regional framework to drive the industrialisation programme at this level. With specific reference to the Nelson Mandela Metropole, the study used a mixed methods research approach to assess regional actors’ views on the strategic enablers identified through the literature. A survey was employed to extract data from manufacturing enterprises in the region on the perceived constraints to the growth of the manufacturing sector. The quantitative data were complemented by qualitative data collected through semi-structured interviews with key regional informants. The results of the study reveal some of the general weaknesses that confront the region as it pursues regional industrialisation. Importantly, the study uses the identified regional strategic enablers to develop a framework that can be used by regional actors to design an implementation plan. , Thesis (PhD) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Sipuka, Msingathi
- Date: 2022-04
- Subjects: Economic growth , Economic development -- Nelson Mandela
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/58190 , vital:58675
- Description: The main assumption underlying this study is that structural change brings about growth and in turn translates to poverty reduction through the expansion of labour absorbing economic sectors and employment in higher productivity non-primary sectors. Since labour productivity in non-primary sectors is higher, the large-scale migration of labour out of primary activity should raise labour incomes and result in poverty reducing growth. Economic growth driven by structural change in income and employment should therefore aid and promote poverty reduction. Notwithstanding the important role of the national sphere of government in setting the industrial policy framework in the country, this research places emphasis on the role and contribution of regional economies in translating active industrial policy into implementation and development results. In South Africa the rise in poverty can be partially attributed to an economy that is not growing at the required rates needed to, among others, create the necessary employment opportunities at scale. The ability to adequately respond to these national development challenges depends on key economic regions in the country unlocking growth in several economic sectors, in particular the manufacturing sector which is described as labour-intensive and with a high multiplier effect on the economy. To this end, the capacity of regional governments working with regional stakeholders to plan, coordinate, implement and provide oversight over integrated regional industrialisation strategies and implementation plans becomes pivotal. Equally, the Nelson Mandela Metropole, which is the geographic area of focus for this study, has identified and prioritised the growth of the manufacturing sector as one of its economic priorities, reflecting its ambition of driving a programme of re-industrialisation and positioning the region as one of the country’s industrial centres. The main proposition of this study is that the Nelson Mandela Metropole, like other regional economies in the country, is not able to drive the programme of re-industrialisation. The reason for this inability is that it does not have a coherent framework of levers that are at the disposal of regional governments and regional stakeholders to design and implement a programme of re-industrialisation within the ii context of a globalised economy but that takes into consideration national peculiarities of the manufacturing sector. The fact that the regions do not have an integrated regional implementation plan for reviving the manufacturing sector creates an eco-system where there is limited coordination of the actions of different role players, in turn limiting collaboration within the region. The research has identified a gap in the literature between the two areas that impact on this study, namely, industrial development and regional economic development. The study navigates the literature across these two areas to emerge with a synthesised framework of strategic enablers for industrialisation at a regional level. These strategic enablers can be used by regional governments to develop an integrated regional framework to drive the industrialisation programme at this level. With specific reference to the Nelson Mandela Metropole, the study used a mixed methods research approach to assess regional actors’ views on the strategic enablers identified through the literature. A survey was employed to extract data from manufacturing enterprises in the region on the perceived constraints to the growth of the manufacturing sector. The quantitative data were complemented by qualitative data collected through semi-structured interviews with key regional informants. The results of the study reveal some of the general weaknesses that confront the region as it pursues regional industrialisation. Importantly, the study uses the identified regional strategic enablers to develop a framework that can be used by regional actors to design an implementation plan. , Thesis (PhD) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Reconciling the “Natural” and the “Artificial” in the making of Regenerative Ecosystems: The Design of a Port Operations Facility for the Buffalo River Harbour, East London
- Authors: Nel, Joslin
- Date: 2022-04
- Subjects: built environment -- East London , Biotic communities -- Buffalo River Harbour -- East London
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59106 , vital:60264
- Description: The purpose of this study is to investigate a reconciliation between natural systems and the artificial construction of our built environment within the scope of regenerative ecosystems through architectural intervention. The monolithic harbour front, sited specifically within the Buffalo River Harbour of East London, is examined as the ultimate artificial and immovable landscape which sets the challenge of creating a more dynamic architecture. This is due to the fact that the banks of the Buffalo river harbour have long been transformed by marine industry and urban influence, having a retardation effect on its ecological functioning. Through the programmatic response of a Port Operations Facility, marine infrastructural institutions such as Transnet are given a new role in terms of environmental custodianship. The notion of a “self-regulating system” is therefore central to the design strategy. This occurs through a scale-linking approach, where the design plays a crucial role in urban runoff and stormwater management within the greater infrastructural context of the city, in an effort to rectify present ecological imbalances. Environmental receptivity is also explored through architectural devices that are sensitive to the cyclical fluctuations of intertidal landscapes, as well as advocating decentralised waste and energy management. Through the creation of a “novel ecosystem”, an ecological counterpoint to the monofunctional infrastructural domain of our cities is proposed. This challenges conventional engineering and design processes and ideologies in favour of a more complex relationship between landscape and architecture. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2020
- Full Text:
- Date Issued: 2022-04
- Authors: Nel, Joslin
- Date: 2022-04
- Subjects: built environment -- East London , Biotic communities -- Buffalo River Harbour -- East London
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59106 , vital:60264
- Description: The purpose of this study is to investigate a reconciliation between natural systems and the artificial construction of our built environment within the scope of regenerative ecosystems through architectural intervention. The monolithic harbour front, sited specifically within the Buffalo River Harbour of East London, is examined as the ultimate artificial and immovable landscape which sets the challenge of creating a more dynamic architecture. This is due to the fact that the banks of the Buffalo river harbour have long been transformed by marine industry and urban influence, having a retardation effect on its ecological functioning. Through the programmatic response of a Port Operations Facility, marine infrastructural institutions such as Transnet are given a new role in terms of environmental custodianship. The notion of a “self-regulating system” is therefore central to the design strategy. This occurs through a scale-linking approach, where the design plays a crucial role in urban runoff and stormwater management within the greater infrastructural context of the city, in an effort to rectify present ecological imbalances. Environmental receptivity is also explored through architectural devices that are sensitive to the cyclical fluctuations of intertidal landscapes, as well as advocating decentralised waste and energy management. Through the creation of a “novel ecosystem”, an ecological counterpoint to the monofunctional infrastructural domain of our cities is proposed. This challenges conventional engineering and design processes and ideologies in favour of a more complex relationship between landscape and architecture. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2020
- Full Text:
- Date Issued: 2022-04
Recruitment disruptors: an exploratory study on the perception of artificial intelligence amongst selected Eastern Cape Province recruiters
- Authors: Sobekwa, Sinazo
- Date: 2022-04
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232238 , vital:49974
- Description: Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Sobekwa, Sinazo
- Date: 2022-04
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232238 , vital:49974
- Description: Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
Refining predator-prey preference at the prey demographic level for cheetah and lion
- Authors: Annear, Eleesha
- Date: 2022-04
- Subjects: Social behavior in animals --South Africa , Predatory animals –Behavior
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55800 , vital:53880
- Description: Traditional prey preference models estimate prey preference using a coarse species-specific body mass of three-quarters of the mean adult female body mass. This is widely assumed to estimate the average mass across prey populations, accounting for neonates, juveniles, sub-adults, and adults. However, this approach negates the models’ ability to predict demography-specific prey preferences, thus reducing our ability to predict the impacts of predation on prey populations. The objectives of this study were to 1) refine the prey selection models, using lion Panthera leo and cheetah Acinonyx jubatus as model species, by incorporating prey demographic classes and season and, 2) determine the influence of seasonal variability in availability of these prey demographic classes on cheetah reproduction. Lions preferentially killed adults of larger species (e.g., wildebeest, waterbuck, and zebra) irrespective of the season, as predicted by optimal foraging theory. Sub-adult, juvenile, and neonate prey were killed by lions relative to their abundance. Cheetahs preferred juvenile prey of large species, namely kudu, zebra, and wildebeest. Season influenced cheetah preference with neonates and juveniles being preferred during the wet season and adults of smaller species, and juveniles of larger species being preferred during the dry season. Thus, results support the alternative demographic class hypothesis. Furthermore, the availability of neonate and juvenile prey drives cheetah reproduction patterns with conception and cub independence coinciding with the peak availability of easy-to-catch neonates. Lactation coincided with the high availability of relatively larger juveniles to ensure that females obtain enough resources to sustain the most energetically costly reproductive phase. In addition, I suggest cheetah may be particularly vulnerable to disturbances that impact on prey reproduction (e.g., drought, fire, and flood), given their reliance on neonate and juvenile prey. My findings highlight that estimating species-level prey preference using a coarse species-specific body mass masks the level of prey use and potential preferences for the different prey demographic classes. The use of some prey species may be largely confined to juveniles by smaller predators, meaning that prey availability would vary seasonally, may influence reproductive patterns, and carrying capacity models would need to be revised in terms of the available demographic-specific prey biomass. , Thesis (MSc) -- Faculty of Sciences, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Annear, Eleesha
- Date: 2022-04
- Subjects: Social behavior in animals --South Africa , Predatory animals –Behavior
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55800 , vital:53880
- Description: Traditional prey preference models estimate prey preference using a coarse species-specific body mass of three-quarters of the mean adult female body mass. This is widely assumed to estimate the average mass across prey populations, accounting for neonates, juveniles, sub-adults, and adults. However, this approach negates the models’ ability to predict demography-specific prey preferences, thus reducing our ability to predict the impacts of predation on prey populations. The objectives of this study were to 1) refine the prey selection models, using lion Panthera leo and cheetah Acinonyx jubatus as model species, by incorporating prey demographic classes and season and, 2) determine the influence of seasonal variability in availability of these prey demographic classes on cheetah reproduction. Lions preferentially killed adults of larger species (e.g., wildebeest, waterbuck, and zebra) irrespective of the season, as predicted by optimal foraging theory. Sub-adult, juvenile, and neonate prey were killed by lions relative to their abundance. Cheetahs preferred juvenile prey of large species, namely kudu, zebra, and wildebeest. Season influenced cheetah preference with neonates and juveniles being preferred during the wet season and adults of smaller species, and juveniles of larger species being preferred during the dry season. Thus, results support the alternative demographic class hypothesis. Furthermore, the availability of neonate and juvenile prey drives cheetah reproduction patterns with conception and cub independence coinciding with the peak availability of easy-to-catch neonates. Lactation coincided with the high availability of relatively larger juveniles to ensure that females obtain enough resources to sustain the most energetically costly reproductive phase. In addition, I suggest cheetah may be particularly vulnerable to disturbances that impact on prey reproduction (e.g., drought, fire, and flood), given their reliance on neonate and juvenile prey. My findings highlight that estimating species-level prey preference using a coarse species-specific body mass masks the level of prey use and potential preferences for the different prey demographic classes. The use of some prey species may be largely confined to juveniles by smaller predators, meaning that prey availability would vary seasonally, may influence reproductive patterns, and carrying capacity models would need to be revised in terms of the available demographic-specific prey biomass. , Thesis (MSc) -- Faculty of Sciences, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Reimagining Culture and Creative Industries: Developing Career Connected Pathways
- Authors: Macklin, Scott
- Date: 2022-04
- Subjects: Critical realism , Sustainable development , Cultural industries
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57726 , vital:58227
- Description: Culture and Creative Industries (CCI) have an enormous potential to impact society’s socio-economic development. The approach of this study argues for the possibility of developing progressive social transformation and stands in distinction to those who argue against this possibility and casts doubt on the concept of development entirely. This study offers a hopeful alternative path navigating through overly optimistic and cynical viewpoints in the concept of a CCI ecosystem. The intent is to shift the discourse to consider creativity and culture as contributing to cross-sector dialogue and understanding, as well as allowing participants to take charge of their own development and providing the foundation for inclusive and sustainable capacity building and innovative progress. This study makes the development case that co-creating staged generative pathways with participants is critical for shifting societal circumstances away from “extractive” processes and towards more “complementary” actions leading to a desired state of inclusive well-being. Furthermore, it contends that scholarship that views Culture and Creative Industries (CCI) as self-contained or apart from the economy and society is ineffective. Due to its multi-sector, emergent and complex nature, a mixed methods research strategy drawing upon Margaret Archer's (1995) Morphogenetic Approach rooted in the Critical Realist meta-theory, was used in this research. Data was gathered and mined from a citywide situational survey, semi-structured questionnaires and co-sector focus group sessions. Transformative Scenario Planning (Kahane, 2012) was implemented to articulate a cross-sector and co-created account of the make-up, actions, and interrelationships of the facets and mechanisms that are responsible for shaping CCI as a significant contributor to a desired quality of life and well-being of a community. This research study sought to understand how, for whom, when and in what ways the powers, liabilities, dispositions, and resources found in the creative sector can be understood to raise engagement and strengthen the results of socio-economic initiatives. It is limited to a situational analysis of CCI in Seattle, Washington. ix Based on the findings, a case for capacity building through integrated career-connected learning pathways has been created and offered as a research-informed, adaptable, and adoptable Creative Exchange Learning Co-Lab (CELCL) curriculum. This staged development process is designed whereby the implications for individual and organisational revitalisation are intended to occur simultaneously. Creative actions, cultural expressions, learning opportunities, and business strategies are exposed, and opportunities arise through this collaborative development process, engaging transformative actions that generate activity around the needs, assets, and interests of particular communities of practice in Seattle. It is recommended that this process be implemented in order to move towards a more sustainable, connected, and equitable CCI ecosystem. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Macklin, Scott
- Date: 2022-04
- Subjects: Critical realism , Sustainable development , Cultural industries
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57726 , vital:58227
- Description: Culture and Creative Industries (CCI) have an enormous potential to impact society’s socio-economic development. The approach of this study argues for the possibility of developing progressive social transformation and stands in distinction to those who argue against this possibility and casts doubt on the concept of development entirely. This study offers a hopeful alternative path navigating through overly optimistic and cynical viewpoints in the concept of a CCI ecosystem. The intent is to shift the discourse to consider creativity and culture as contributing to cross-sector dialogue and understanding, as well as allowing participants to take charge of their own development and providing the foundation for inclusive and sustainable capacity building and innovative progress. This study makes the development case that co-creating staged generative pathways with participants is critical for shifting societal circumstances away from “extractive” processes and towards more “complementary” actions leading to a desired state of inclusive well-being. Furthermore, it contends that scholarship that views Culture and Creative Industries (CCI) as self-contained or apart from the economy and society is ineffective. Due to its multi-sector, emergent and complex nature, a mixed methods research strategy drawing upon Margaret Archer's (1995) Morphogenetic Approach rooted in the Critical Realist meta-theory, was used in this research. Data was gathered and mined from a citywide situational survey, semi-structured questionnaires and co-sector focus group sessions. Transformative Scenario Planning (Kahane, 2012) was implemented to articulate a cross-sector and co-created account of the make-up, actions, and interrelationships of the facets and mechanisms that are responsible for shaping CCI as a significant contributor to a desired quality of life and well-being of a community. This research study sought to understand how, for whom, when and in what ways the powers, liabilities, dispositions, and resources found in the creative sector can be understood to raise engagement and strengthen the results of socio-economic initiatives. It is limited to a situational analysis of CCI in Seattle, Washington. ix Based on the findings, a case for capacity building through integrated career-connected learning pathways has been created and offered as a research-informed, adaptable, and adoptable Creative Exchange Learning Co-Lab (CELCL) curriculum. This staged development process is designed whereby the implications for individual and organisational revitalisation are intended to occur simultaneously. Creative actions, cultural expressions, learning opportunities, and business strategies are exposed, and opportunities arise through this collaborative development process, engaging transformative actions that generate activity around the needs, assets, and interests of particular communities of practice in Seattle. It is recommended that this process be implemented in order to move towards a more sustainable, connected, and equitable CCI ecosystem. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Representations of adult women who have experienced 'absent' fathers: a thematic analysis of True Love magazine
- Authors: Moola, Lubayna Codelia
- Date: 2022-04
- Subjects: Absentee fathers South Africa , Fathers and daughters South Africa , Fathers and daughters in literature South Africa , Mass media and families South Africa , Mass media and women South Africa , Families Psychological aspects , Self-actualization (Psychology) in women South Africa , Thematic analysis , True Love magazine
- Language: English
- Type: Master's thesis , text
- Identifier: http://hdl.handle.net/10962/232568 , vital:50003
- Description: This study explored how adult women who have experienced father 'absence' are represented in True Love magazine, a popular South African women's magazine targeting black women readers. The study examined nineteen articles published between 2016 and 2021 in True Love, featuring black women’s stories and clinical psychologists, which mentioned ‘absent’ fathers. Through the lenses of psychoanalytic, traditional African cultural, and feminist theoretical frameworks and their key concepts, the articles were examined in relation to how the effects on the adult women of complicated relationships with their fathers while they were growing up, were represented. The selected articles were analysed using Braun and Clarke's reflexive thematic analysis, and representational themes were identified guided by theoretical frameworks and familiarity with the scholarly literature on father ‘absence’ in South Africa. A wide range of childhood and young adult experiences of father-daughter relationships, and household circumstances, appeared alongside the strong maternal networks which supported these girls and women. Representations and themes of clinical psychologists involved Freudian psychoanalytic frameworks to describe the damaging psychological implications of ‘absent’ fathers, particularly affecting adult women’s capacities to form trusting intimate relationships with men. The adult women’s stories – largely successful businesswomen and/or celebrities in the arts, as represented by True Love feature writers and editors – presented themes of what the women had learnt from their mothers, and how they had overcome difficulties and obstacles. These themes included representations of resilience, and of being ‘survivors’, informed by empowerments from a feminist theoretical framework. These themes also represented the women as working psychotherapeutically to manage their past experiences and psychological distress, to transform their retriggering in adult heterosexual relationships, and to pursue healing and self-actualisation. These representations and themes are argued to have inspirational and motivating implications for girls and women in contemporary South Africa. They generate alternate stories about the longer-term effects and outcomes of father ‘absence’, rather than the prominent 'victim' stories in media and scholarly literature of young women doomed to suffer poor relationships and depression forever. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Moola, Lubayna Codelia
- Date: 2022-04
- Subjects: Absentee fathers South Africa , Fathers and daughters South Africa , Fathers and daughters in literature South Africa , Mass media and families South Africa , Mass media and women South Africa , Families Psychological aspects , Self-actualization (Psychology) in women South Africa , Thematic analysis , True Love magazine
- Language: English
- Type: Master's thesis , text
- Identifier: http://hdl.handle.net/10962/232568 , vital:50003
- Description: This study explored how adult women who have experienced father 'absence' are represented in True Love magazine, a popular South African women's magazine targeting black women readers. The study examined nineteen articles published between 2016 and 2021 in True Love, featuring black women’s stories and clinical psychologists, which mentioned ‘absent’ fathers. Through the lenses of psychoanalytic, traditional African cultural, and feminist theoretical frameworks and their key concepts, the articles were examined in relation to how the effects on the adult women of complicated relationships with their fathers while they were growing up, were represented. The selected articles were analysed using Braun and Clarke's reflexive thematic analysis, and representational themes were identified guided by theoretical frameworks and familiarity with the scholarly literature on father ‘absence’ in South Africa. A wide range of childhood and young adult experiences of father-daughter relationships, and household circumstances, appeared alongside the strong maternal networks which supported these girls and women. Representations and themes of clinical psychologists involved Freudian psychoanalytic frameworks to describe the damaging psychological implications of ‘absent’ fathers, particularly affecting adult women’s capacities to form trusting intimate relationships with men. The adult women’s stories – largely successful businesswomen and/or celebrities in the arts, as represented by True Love feature writers and editors – presented themes of what the women had learnt from their mothers, and how they had overcome difficulties and obstacles. These themes included representations of resilience, and of being ‘survivors’, informed by empowerments from a feminist theoretical framework. These themes also represented the women as working psychotherapeutically to manage their past experiences and psychological distress, to transform their retriggering in adult heterosexual relationships, and to pursue healing and self-actualisation. These representations and themes are argued to have inspirational and motivating implications for girls and women in contemporary South Africa. They generate alternate stories about the longer-term effects and outcomes of father ‘absence’, rather than the prominent 'victim' stories in media and scholarly literature of young women doomed to suffer poor relationships and depression forever. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
Rethinking our understanding of career decision making: the views of students at a selected South African TVET colleges on what influences their career decisions
- Authors: Maluleke, Lucky
- Date: 2022-04
- Subjects: Career -- Decision making , Postsecondary education -- South Africa , Career development
- Language: English
- Type: Doctoral thesis , Thesis
- Identifier: http://hdl.handle.net/10948/56044 , vital:54946
- Description: In South Africa, technical and vocational education and training (TVET) has been identified as a potential solution to the triple challenge of inequality, poverty and unemployment. The 2013 White Paper for Post-School Education and Training: Building on Expanded, Effective and Integrated Post-School Education (DHET, 2013) identifies TVET colleges as an area of great expansion. Although such an expansion is important and necessary, it is unfortunate that in South Africa, research has paid little to no attention to what influences TVET college students' career decision making. Concerning this, the study reported in this dissertation aimed to investigate what influences the career decision making of TVET college students in the Nelson Mandela Bay Metro, Eastern Cape, South Africa. This qualitative study, located within the subjectivist ontology and interpretivist epistemology, contributes to understanding what influences the career decision making of TVET college students in a developing context of South Africa. Drawing on qualitative (individual and group) interviews with students, it examined the career decisions of a small sample of students enrolled at one South African public TVET college in the Nelson Mandela Bay Metro. In so doing, the study brings four elements to the study of career decision making. Firstly, empirically, it brings a fresh and subjective perspective of what 'TVET' and 'career' means to TVET students. Secondly, it brings to the literature on TVET, an analysis of the Careership Theory that draws from the TVET college students' experiences. Thirdly, it brings to our understanding of career decision making, the role of structure and agency from a Bourdieusian2 perspective. Fourthly, it transcends the heavily critiqued Bourdieusian model to encompass the notion of capacity to aspire, borrowed from Arjun Appadurai, to better explain the role of culture in social action. Data were collected using individual and group interview methods, which were later transcribed and analysed thematically. The findings show that career decision making is dependent on the perceptions of the primary decision makers and other social agents that learners interacted with in the field. Career decision making is situated in the vast social inequalities and unequal power relations shaped by unequal access to cultural, economic and social capital. However, as much as social structures influence career decision making, the role of agency must not be underestimated. The findings further reveal that career decisions are located in the objective and social structures, and these are influenced by capital (cultural, economic and social). Furthermore, career decisions are influenced by the capacity of the individuals to choose, to know what to choose, as well as structural enablers like finance. In short, the findings reveal that inequalities matter, for example, socio-economic and gender disparities. , Thesis (DEd) -- Faculty of Education, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Maluleke, Lucky
- Date: 2022-04
- Subjects: Career -- Decision making , Postsecondary education -- South Africa , Career development
- Language: English
- Type: Doctoral thesis , Thesis
- Identifier: http://hdl.handle.net/10948/56044 , vital:54946
- Description: In South Africa, technical and vocational education and training (TVET) has been identified as a potential solution to the triple challenge of inequality, poverty and unemployment. The 2013 White Paper for Post-School Education and Training: Building on Expanded, Effective and Integrated Post-School Education (DHET, 2013) identifies TVET colleges as an area of great expansion. Although such an expansion is important and necessary, it is unfortunate that in South Africa, research has paid little to no attention to what influences TVET college students' career decision making. Concerning this, the study reported in this dissertation aimed to investigate what influences the career decision making of TVET college students in the Nelson Mandela Bay Metro, Eastern Cape, South Africa. This qualitative study, located within the subjectivist ontology and interpretivist epistemology, contributes to understanding what influences the career decision making of TVET college students in a developing context of South Africa. Drawing on qualitative (individual and group) interviews with students, it examined the career decisions of a small sample of students enrolled at one South African public TVET college in the Nelson Mandela Bay Metro. In so doing, the study brings four elements to the study of career decision making. Firstly, empirically, it brings a fresh and subjective perspective of what 'TVET' and 'career' means to TVET students. Secondly, it brings to the literature on TVET, an analysis of the Careership Theory that draws from the TVET college students' experiences. Thirdly, it brings to our understanding of career decision making, the role of structure and agency from a Bourdieusian2 perspective. Fourthly, it transcends the heavily critiqued Bourdieusian model to encompass the notion of capacity to aspire, borrowed from Arjun Appadurai, to better explain the role of culture in social action. Data were collected using individual and group interview methods, which were later transcribed and analysed thematically. The findings show that career decision making is dependent on the perceptions of the primary decision makers and other social agents that learners interacted with in the field. Career decision making is situated in the vast social inequalities and unequal power relations shaped by unequal access to cultural, economic and social capital. However, as much as social structures influence career decision making, the role of agency must not be underestimated. The findings further reveal that career decisions are located in the objective and social structures, and these are influenced by capital (cultural, economic and social). Furthermore, career decisions are influenced by the capacity of the individuals to choose, to know what to choose, as well as structural enablers like finance. In short, the findings reveal that inequalities matter, for example, socio-economic and gender disparities. , Thesis (DEd) -- Faculty of Education, 2022
- Full Text:
- Date Issued: 2022-04
Rethinking the informal settlements upgrading programmes in the Free State Province, South Africa: a transformative and multi-faceted model
- Authors: Sive Dintsi
- Date: 2022-04
- Subjects: Squatter settlements --South Africa -- Free State , City planning South Africa --Citizen participation
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55987 , vital:54561
- Description: This thesis intended to reveal the factors that contributed to the formulation of the informal settlements upgrading programmes in the Free State, South Africa, from an institutional perspective; subsequently to conceptualise a transformative and multi faceted model for the development and management of human settlements. The mixed methods exploratory research design has been applied in this study. This research design has allowed for the implementation of research methods including the qualitative inductive content analysis method, the case study method, and the semi structured survey questionnaire method. The data collection methods used comprised both primary and secondary data. Primary data involved online surveys and field observations. Secondary data comprised of an inductive analysis of written sources. The main findings of the study were as follows. First, the policy design and implementation processes have been misaligned. Second, there has been inadequate stakeholder engagements. Third, the government has not prioritised the employment of specialists in the field of housing and human settlements. Fourth, corruption has caused the state to fail to provide adequate housing for all. Fifth, municipalities are unable to identify and define existing informal settlements. Lastly, illegal immigration is causing a rapid increase in the number of informal settlements. This thesis proffered key recommendations based on the conclusions drawn from these findings. First, there must be an implementation of an integrated model for the preparation of upgrading policy. Second, communication technology education for officials of the state must be enhanced. Third, the government must prioritise the employment of experts in upgrading work. Fourth, the upgrading policy must reflect the paradigm shift from housing to human settlements. Fifth, municipalities need to be systematically transformed and improved for their functions on upgrading. Finally, illegal immigration must be firmly monitored while legal immigration is discouraged. To this end, this thesis has presented a strong viewpoint that limits the influx of immigrants into unproclaimed urban land that leads to the growth of informal settlements. The study has also strongly advocated for the legal spatial placement of South African citizens and legal immigrants on strategically and socio-economically viable land, where it is suitably available and owned by the state. Housing in the thesis has been viewed as one of the essential instruments that must inevitably emerge as a prospect towards xiv effectively unlocking improved living conditions in informal settlements; rather than housing being perceived as human settlements. , Thesis (PhD) -- Faculty of Engineering, the Built Environment and Information Technology, School of the Built Environment, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Sive Dintsi
- Date: 2022-04
- Subjects: Squatter settlements --South Africa -- Free State , City planning South Africa --Citizen participation
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55987 , vital:54561
- Description: This thesis intended to reveal the factors that contributed to the formulation of the informal settlements upgrading programmes in the Free State, South Africa, from an institutional perspective; subsequently to conceptualise a transformative and multi faceted model for the development and management of human settlements. The mixed methods exploratory research design has been applied in this study. This research design has allowed for the implementation of research methods including the qualitative inductive content analysis method, the case study method, and the semi structured survey questionnaire method. The data collection methods used comprised both primary and secondary data. Primary data involved online surveys and field observations. Secondary data comprised of an inductive analysis of written sources. The main findings of the study were as follows. First, the policy design and implementation processes have been misaligned. Second, there has been inadequate stakeholder engagements. Third, the government has not prioritised the employment of specialists in the field of housing and human settlements. Fourth, corruption has caused the state to fail to provide adequate housing for all. Fifth, municipalities are unable to identify and define existing informal settlements. Lastly, illegal immigration is causing a rapid increase in the number of informal settlements. This thesis proffered key recommendations based on the conclusions drawn from these findings. First, there must be an implementation of an integrated model for the preparation of upgrading policy. Second, communication technology education for officials of the state must be enhanced. Third, the government must prioritise the employment of experts in upgrading work. Fourth, the upgrading policy must reflect the paradigm shift from housing to human settlements. Fifth, municipalities need to be systematically transformed and improved for their functions on upgrading. Finally, illegal immigration must be firmly monitored while legal immigration is discouraged. To this end, this thesis has presented a strong viewpoint that limits the influx of immigrants into unproclaimed urban land that leads to the growth of informal settlements. The study has also strongly advocated for the legal spatial placement of South African citizens and legal immigrants on strategically and socio-economically viable land, where it is suitably available and owned by the state. Housing in the thesis has been viewed as one of the essential instruments that must inevitably emerge as a prospect towards xiv effectively unlocking improved living conditions in informal settlements; rather than housing being perceived as human settlements. , Thesis (PhD) -- Faculty of Engineering, the Built Environment and Information Technology, School of the Built Environment, 2022
- Full Text:
- Date Issued: 2022-04