Incidence of parasitic trematodes effects on the energetics and behaviour of Coryogalops sordidus (Family: Gobiidae) resident in microbialite pools, warm temperate South Africa
- Authors: Du Toit, Hendrik Daniël
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Gobiidae -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52458 , vital:43666
- Description: Coryogalops sordidus(Epaulette goby), is a cryptobenthic species of the Family Gobiidae that iscommonly foundoccupying turbulent surf zones, calm rock pools, and sand and mud flats, where they are generally carnivorous predators. The distribution of C. sordidushas been recorded for Kenya, Tanzania, Mozambique, and South Africa. The species is also resident in the microbialite pools on the temperate south east coast of South Africa. Recent reports indicated these gobies to be covered in numerous dark lesions, possibly suggesting that the microbialite pools are a sub-optimal habitat. Preliminary analyses have indicated that the dark lesions are a result of encysted metacercaria of a digenetic trematode (fluke). There werehowever,no current recorded parasiticspecies occurring within microbialite pool nor any records of any parasitic species utilizingC. sordidus as a host in South Africa. Therefore, the aim of this study was to investigate parasite-host interactions and parasite presence in and around themicrobialite pool systems of Algoa Bay using C. sordidusas a study species. Coryogalops sordiduswas identified to be parasitised by digenetic trematode metacercaria of the Family Diplostomidae Poirier, 1886, localised primarily to the host musculature, fins, eyes, and integument with no settlement on any of the visceral organs. Furthermore, C. sordidus was found additionally parasitised by a green leech (Class: Hirundinea) of the Family Piscicolidae Johnston, 1865, localised exclusively to the ventral body surface, underneath the pelvic fin of the host. Further investigation into the life cycle of the trematode, suggested that the most probable final hosts wereherons,namely Ardea cinereaand Egretta garzetta garzetta, and intermediate host likely being the freshwater gastropod Assimineacf.capensis, present inthe upper microbialite pools. In both the microbialite and neighbouring rock pools trematode prevalence was found to oscillate in response to seasonal chemical and climatic conditions, whereas the secondary piscicolid leech parasite was influencedmoreby host presence than environmental conditions. Greater prevalence and intensity were measured in the microbialite pools suggesting that these systems likely contained a suit of favourable conditions that allowed for greater trematode loads to be maintained as compared to neighbouring rock pools. As parasites often have deleterious effects on their hosts, the response can manifest as an altered host behaviour or an increased energetic debt due to elevated immune response activity and the associated cost of tissue repair at sites of parasite aggregation.This study further investigatedifgobies (C. sordidus) infected with metacercarial cysts display higher metabolic ratesordifferent swimming behaviour compared to non-infected individuals. The results indicated that the metacercarial load carried by infected hosts had on average no significant impact on energetics, swimming ability, or swimming behaviour, concluding that the average metacercarial intensity present on the gobies is therefore below the threshold of an altered host response. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Du Toit, Hendrik Daniël
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Gobiidae -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52458 , vital:43666
- Description: Coryogalops sordidus(Epaulette goby), is a cryptobenthic species of the Family Gobiidae that iscommonly foundoccupying turbulent surf zones, calm rock pools, and sand and mud flats, where they are generally carnivorous predators. The distribution of C. sordidushas been recorded for Kenya, Tanzania, Mozambique, and South Africa. The species is also resident in the microbialite pools on the temperate south east coast of South Africa. Recent reports indicated these gobies to be covered in numerous dark lesions, possibly suggesting that the microbialite pools are a sub-optimal habitat. Preliminary analyses have indicated that the dark lesions are a result of encysted metacercaria of a digenetic trematode (fluke). There werehowever,no current recorded parasiticspecies occurring within microbialite pool nor any records of any parasitic species utilizingC. sordidus as a host in South Africa. Therefore, the aim of this study was to investigate parasite-host interactions and parasite presence in and around themicrobialite pool systems of Algoa Bay using C. sordidusas a study species. Coryogalops sordiduswas identified to be parasitised by digenetic trematode metacercaria of the Family Diplostomidae Poirier, 1886, localised primarily to the host musculature, fins, eyes, and integument with no settlement on any of the visceral organs. Furthermore, C. sordidus was found additionally parasitised by a green leech (Class: Hirundinea) of the Family Piscicolidae Johnston, 1865, localised exclusively to the ventral body surface, underneath the pelvic fin of the host. Further investigation into the life cycle of the trematode, suggested that the most probable final hosts wereherons,namely Ardea cinereaand Egretta garzetta garzetta, and intermediate host likely being the freshwater gastropod Assimineacf.capensis, present inthe upper microbialite pools. In both the microbialite and neighbouring rock pools trematode prevalence was found to oscillate in response to seasonal chemical and climatic conditions, whereas the secondary piscicolid leech parasite was influencedmoreby host presence than environmental conditions. Greater prevalence and intensity were measured in the microbialite pools suggesting that these systems likely contained a suit of favourable conditions that allowed for greater trematode loads to be maintained as compared to neighbouring rock pools. As parasites often have deleterious effects on their hosts, the response can manifest as an altered host behaviour or an increased energetic debt due to elevated immune response activity and the associated cost of tissue repair at sites of parasite aggregation.This study further investigatedifgobies (C. sordidus) infected with metacercarial cysts display higher metabolic ratesordifferent swimming behaviour compared to non-infected individuals. The results indicated that the metacercarial load carried by infected hosts had on average no significant impact on energetics, swimming ability, or swimming behaviour, concluding that the average metacercarial intensity present on the gobies is therefore below the threshold of an altered host response. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2021
- Full Text:
- Date Issued: 2021-04
Indigenous knowledge of ecosystem services in rural communities of the Eastern Cape, South Africa
- Authors: Murata, Chenai
- Date: 2021-04
- Subjects: Ethnoscience -- South Africa -- Eastern Cape , Ecosystem management -- South Africa -- Eastern Cape , Nature -- Effect of human beings on -- South Africa -- Eastern Cape , Human ecology -- South Africa -- Eastern Cape , Human beings -- Effect of environment on -- South Africa -- Eastern Cape , South Africa -- Eastern Cape -- Rural conditions
- Language: English
- Type: thesis , text , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/177929 , vital:42891 , 10.21504/10962/177929
- Description: This thesis is on indigenous knowledge of ecosystem services. The ecosystem service framework and its associated concepts are fairly young, having been introduced in the ecological discipline in the 1980s. The ecosystem service framework posits that the wellbeing of humans and their communities is dependent on services supplied by ecosystems. It emphasises that for the ecosystems to be able to supply the services, they need to be in a well-functioning state. This idea of well-functioning is predicated on the argument that the ecosystem service framework enjoins resource users to exercise responsible stewardship to prevent degradation and overharvesting. Moreover, the concept of dependence suggests that ecosystem services are of value to humans. The dominant means of measuring the value of ecosystem services has been the economic valuation method in which the contribution that each service makes to human wellbeing is quantified into monetary units. The framework disaggregates the services into four groups, namely provisioning, cultural, supporting and regulatory and seeks to all the pillars of human wellbeing including health, subsistence and spirituality into each of these groups. In doing all this, the framework significantly reconfigures the way we look at and present human-nature relations. This change has the potential to influence significant shifts in how ecological research and intervention programmes are conducted in the foreseeable future. However, the reality that the ecosystem service framework was formulated within, and is informed by the scientific epistemology begs the question: what do traditional rural communities who depend mainly on indigenous knowledge systems (IKS) for shaping and interoperating their relations with nature know of the ecosystem service concept? Rural communities are the ones who interact directly with nature on a day-to-day basis. This makes them a very critical component in the ecosystem service framework. Although South Africa has had studies in the ecosystem service theme, little has been done to attempt to investigate and document indigenous knowledge of ecosystem services that rural communities possess. By focusing only on scientific knowledge of ecosystem services, the South African literature does not do justice to the plural epistemologies of the ecosystem service users in the country. More importantly, the continued dearth of public information on indigenous knowledge of ecosystem services can potentially obstruct implementation of locally sensitive intervention programmes because nothing is known about how the local communities conceptualise the ecosystem service framework. All this presents a crucial gap in the South African research; one that unless effort is made to contribute towards filling it, our knowledge of how communities experience the ecosystem service framework in South Africa will remain skewed. This study set out to investigate and document indigenous knowledge of ecosystem services in order to contribute towards filling this gap. Indigenous knowledge system is an umbrella epistemic system that includes lay ecological knowledge (LEK), traditional ecological knowledge (TEK) and many other related organized systems of knowing. Although the thesis has a chapter on LEK, its primary focus was TEK because the thesis was interested in unravelling how aspects of tradition including taboos, customs, traditional rules and belief in ancestral forces influence local communities’ knowledge of some key aspects of the ecosystem service framework including knowledge of various ecosystem services, valuation of ecosystem services, management of ecosystem services and perceptions of the management practices. The decision to focus on TEK was based on the reasoning that rural communities of the Eastern Cape boast a strong reputation of being traditional, recognizing ancestral spirits, legends and taboos as critical tools of knowledge generation and transmission. Using both mixed methods in some chapters and the qualitative approach alone in others, the study collected data in five villages of Mgwalana, Mahlungulu, Colana, Gogela and Nozitshena located in the north eastern part of Eastern Cape Province of South Africa, a region formerly called Transkei. The data were collected not on ecosystem services; but on the local people’s knowledge of ecosystem services. Although literature was consulted, the study regarded respondents as the primary source of data, hence the findings and conclusions presented in this thesis are about what local people know about ecosystem services. The study uses critical realist theoretical lenses to interpret respondents’ reports. The lenses included the principle of the separation between ontology and epistemology, the iceberg metaphor of ontology, epistemological pluralism and the hermeneutic dimension. These lenses were used to make sense of both the knowledge system of local people and the things about which their knowledge was. As part of discussing the local people’s knowledge, the study sometimes refers to science. This is not because I expected them to demonstrate knowledge similar to science. Instead, it was a critical realist dialectical way of explaining what something is by demonstrating what it is not. The study made a couple of key findings that can potentially enhance the growth of the South African ecosystem service discipline. First, respondents demonstrated knowledge of ecosystem services by mentioning a range of them such as drinking water, medicinal plants, cultural plants and fuelwood and how they affect the wellbeing of humans. However, what they did not have good knowledge of is that nature services can be classified into the four groups of supporting, regulatory, cultural and provisioning. Among the four ecosystem services groups, respondents could identify two only; provisional and cultural. Second, local communities depend heavily on ecosystem services for their well-being. The services include fuelwood, construction timber, medicinal plants, wild fruits, wild fish, cultural services and thatch grass. Although they appreciate that ecosystem services have value to their wellbeing, local people found it difficult to represent the value in monetary units. The conditions that make it difficult for local people to perceive ecosystem services as commodities include the absence of well-defined property system, lack of a quantitative consumer tradition and absence of an economic conception of nature. Third, local people understand the need to keep ecosystems in a well-functioning state hence they implement several traditional practices to manage ecosystem services. These practices include taboos, designating certain resources as sacred, legends, customary law, as well as some secular practices including gelesha and stone terracing. However, it is not easy to understand how traditional management practices work because they are not empirically observable. Fourth, local people possess knowledge of the reality that if not well managed, ecosystems can undergo degradation and hence fail to supply the services needed for human wellbeing. However, they explain the causes of degradation in terms of changes observable at the empirical level and the invisible causal power of supernatural forces. The inclusion of natural forces in degradation explanations marks a departure from the scientific explanations that revolve around biophysical processes. Fifth, the use of traditional management practices such as taboos to management ecosystems is under threat at the local communities. The threat can be attributed to three groups of causes, namely changes in worldviews due to adoption of formal education and Christianity, institutional disharmony playing out between the state and local traditional leadership, and lifestyle changes. These challenges constrain the opportunity for local people to apply traditional management practices to prevent the degradation of ecosystems. The net implication of this is that it renders it difficult for researchers and policy makers to assess the effectiveness of traditional management practices because they are not being implemented in full. In light of all these findings, the thesis concludes that TEK is underlabouring for the ecosystem service framework in the sense that it is used by local communities to generate knowledge of ecological concepts and phenomena. This means that TEK does not exist for the sake of its own self. Drawing from this finding, the study proposes a framework of analysing TEK as an underlabourer for social-ecological triggers or issues. Nonetheless, there are few factors that can be sources of limitation to the study. These include the reality that it was difficult to access pure traditional knowledge because over the years the local communities have received many state-sponsored ecological intervention programmes and a possible personal bias given the reality that I grew up in a traditional household and my father was a key holder or TEK. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2021 , Thesis chapter to be published in 'Green and Low-Carbon Economy'. Journal available: https://ojs.bonviewpress.com/index.php/GLCE/index
- Full Text:
- Date Issued: 2021-04
- Authors: Murata, Chenai
- Date: 2021-04
- Subjects: Ethnoscience -- South Africa -- Eastern Cape , Ecosystem management -- South Africa -- Eastern Cape , Nature -- Effect of human beings on -- South Africa -- Eastern Cape , Human ecology -- South Africa -- Eastern Cape , Human beings -- Effect of environment on -- South Africa -- Eastern Cape , South Africa -- Eastern Cape -- Rural conditions
- Language: English
- Type: thesis , text , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/177929 , vital:42891 , 10.21504/10962/177929
- Description: This thesis is on indigenous knowledge of ecosystem services. The ecosystem service framework and its associated concepts are fairly young, having been introduced in the ecological discipline in the 1980s. The ecosystem service framework posits that the wellbeing of humans and their communities is dependent on services supplied by ecosystems. It emphasises that for the ecosystems to be able to supply the services, they need to be in a well-functioning state. This idea of well-functioning is predicated on the argument that the ecosystem service framework enjoins resource users to exercise responsible stewardship to prevent degradation and overharvesting. Moreover, the concept of dependence suggests that ecosystem services are of value to humans. The dominant means of measuring the value of ecosystem services has been the economic valuation method in which the contribution that each service makes to human wellbeing is quantified into monetary units. The framework disaggregates the services into four groups, namely provisioning, cultural, supporting and regulatory and seeks to all the pillars of human wellbeing including health, subsistence and spirituality into each of these groups. In doing all this, the framework significantly reconfigures the way we look at and present human-nature relations. This change has the potential to influence significant shifts in how ecological research and intervention programmes are conducted in the foreseeable future. However, the reality that the ecosystem service framework was formulated within, and is informed by the scientific epistemology begs the question: what do traditional rural communities who depend mainly on indigenous knowledge systems (IKS) for shaping and interoperating their relations with nature know of the ecosystem service concept? Rural communities are the ones who interact directly with nature on a day-to-day basis. This makes them a very critical component in the ecosystem service framework. Although South Africa has had studies in the ecosystem service theme, little has been done to attempt to investigate and document indigenous knowledge of ecosystem services that rural communities possess. By focusing only on scientific knowledge of ecosystem services, the South African literature does not do justice to the plural epistemologies of the ecosystem service users in the country. More importantly, the continued dearth of public information on indigenous knowledge of ecosystem services can potentially obstruct implementation of locally sensitive intervention programmes because nothing is known about how the local communities conceptualise the ecosystem service framework. All this presents a crucial gap in the South African research; one that unless effort is made to contribute towards filling it, our knowledge of how communities experience the ecosystem service framework in South Africa will remain skewed. This study set out to investigate and document indigenous knowledge of ecosystem services in order to contribute towards filling this gap. Indigenous knowledge system is an umbrella epistemic system that includes lay ecological knowledge (LEK), traditional ecological knowledge (TEK) and many other related organized systems of knowing. Although the thesis has a chapter on LEK, its primary focus was TEK because the thesis was interested in unravelling how aspects of tradition including taboos, customs, traditional rules and belief in ancestral forces influence local communities’ knowledge of some key aspects of the ecosystem service framework including knowledge of various ecosystem services, valuation of ecosystem services, management of ecosystem services and perceptions of the management practices. The decision to focus on TEK was based on the reasoning that rural communities of the Eastern Cape boast a strong reputation of being traditional, recognizing ancestral spirits, legends and taboos as critical tools of knowledge generation and transmission. Using both mixed methods in some chapters and the qualitative approach alone in others, the study collected data in five villages of Mgwalana, Mahlungulu, Colana, Gogela and Nozitshena located in the north eastern part of Eastern Cape Province of South Africa, a region formerly called Transkei. The data were collected not on ecosystem services; but on the local people’s knowledge of ecosystem services. Although literature was consulted, the study regarded respondents as the primary source of data, hence the findings and conclusions presented in this thesis are about what local people know about ecosystem services. The study uses critical realist theoretical lenses to interpret respondents’ reports. The lenses included the principle of the separation between ontology and epistemology, the iceberg metaphor of ontology, epistemological pluralism and the hermeneutic dimension. These lenses were used to make sense of both the knowledge system of local people and the things about which their knowledge was. As part of discussing the local people’s knowledge, the study sometimes refers to science. This is not because I expected them to demonstrate knowledge similar to science. Instead, it was a critical realist dialectical way of explaining what something is by demonstrating what it is not. The study made a couple of key findings that can potentially enhance the growth of the South African ecosystem service discipline. First, respondents demonstrated knowledge of ecosystem services by mentioning a range of them such as drinking water, medicinal plants, cultural plants and fuelwood and how they affect the wellbeing of humans. However, what they did not have good knowledge of is that nature services can be classified into the four groups of supporting, regulatory, cultural and provisioning. Among the four ecosystem services groups, respondents could identify two only; provisional and cultural. Second, local communities depend heavily on ecosystem services for their well-being. The services include fuelwood, construction timber, medicinal plants, wild fruits, wild fish, cultural services and thatch grass. Although they appreciate that ecosystem services have value to their wellbeing, local people found it difficult to represent the value in monetary units. The conditions that make it difficult for local people to perceive ecosystem services as commodities include the absence of well-defined property system, lack of a quantitative consumer tradition and absence of an economic conception of nature. Third, local people understand the need to keep ecosystems in a well-functioning state hence they implement several traditional practices to manage ecosystem services. These practices include taboos, designating certain resources as sacred, legends, customary law, as well as some secular practices including gelesha and stone terracing. However, it is not easy to understand how traditional management practices work because they are not empirically observable. Fourth, local people possess knowledge of the reality that if not well managed, ecosystems can undergo degradation and hence fail to supply the services needed for human wellbeing. However, they explain the causes of degradation in terms of changes observable at the empirical level and the invisible causal power of supernatural forces. The inclusion of natural forces in degradation explanations marks a departure from the scientific explanations that revolve around biophysical processes. Fifth, the use of traditional management practices such as taboos to management ecosystems is under threat at the local communities. The threat can be attributed to three groups of causes, namely changes in worldviews due to adoption of formal education and Christianity, institutional disharmony playing out between the state and local traditional leadership, and lifestyle changes. These challenges constrain the opportunity for local people to apply traditional management practices to prevent the degradation of ecosystems. The net implication of this is that it renders it difficult for researchers and policy makers to assess the effectiveness of traditional management practices because they are not being implemented in full. In light of all these findings, the thesis concludes that TEK is underlabouring for the ecosystem service framework in the sense that it is used by local communities to generate knowledge of ecological concepts and phenomena. This means that TEK does not exist for the sake of its own self. Drawing from this finding, the study proposes a framework of analysing TEK as an underlabourer for social-ecological triggers or issues. Nonetheless, there are few factors that can be sources of limitation to the study. These include the reality that it was difficult to access pure traditional knowledge because over the years the local communities have received many state-sponsored ecological intervention programmes and a possible personal bias given the reality that I grew up in a traditional household and my father was a key holder or TEK. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2021 , Thesis chapter to be published in 'Green and Low-Carbon Economy'. Journal available: https://ojs.bonviewpress.com/index.php/GLCE/index
- Full Text:
- Date Issued: 2021-04
Influence of a saline test environment on the Fatigue properties of laser metal deposition Ti-6al-4v specimens
- Authors: Botha, Sheldyn Jaye
- Date: 2021-04
- Subjects: Metal organic chemical vapor deposition , Salines
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59203 , vital:60304
- Description: This study investigated the effects of the position of extraction and a corrosive environment on the fatigue properties of Ti-6Al-4V Laser Metal Deposition (LMD) specimens. Additive manufacturing (AM) processes allow for a reduction in manufacturing time, whilst constructing complex geometries. AM induces a complex thermal history which influences the microstructure in the material (1). The microstructure affects the fatigue properties where a finer microstructure is more favourable for increasing the fatigue life (2). Fatigue failure is one of the main modes of failure during a material’s service life (3). Thus, it is imperative to investigate the material’s fatigue behaviour. Major parameters of the LMD process were investigated, allowing bulk LMD coupons to be manufactured, from which fatigue specimens were extracted at three different heights. Static properties were attained through tensile testing and a Vickers Micro-Hardness evaluation. These properties allowed for calculating benchmark stresses that were utilised for fatigue testing. The biocompatibility of Ti-6Al-4V makes it desirable for medical implants – the core influence of this study. An implant is constantly subjected to a corrosive saline environment, introducing a corrosive mechanism of failure, known to decrease the life of a material. A rotary bending fatigue platform was utilised as it allowed for modifications to introduce a corrosive saline environment through means of a saline dosing system. Literature reports a higher possibility of corrosion fatigue occurring under rotary bending fatigue conditions for Ti alloy specimens (4,5). The fatigue data indicated no significant effect on the fatigue properties was evident when comparing the position of extraction, attributed to the interrupted build strategy utilised for manufacturing the bulk coupons. The specimens displayed a shift in fatigue life when subjected to a corrosive saline environment. Upon analysis, there was little variation in the microstructures at each position of extraction, attributed to the interrupted build strategy. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Botha, Sheldyn Jaye
- Date: 2021-04
- Subjects: Metal organic chemical vapor deposition , Salines
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59203 , vital:60304
- Description: This study investigated the effects of the position of extraction and a corrosive environment on the fatigue properties of Ti-6Al-4V Laser Metal Deposition (LMD) specimens. Additive manufacturing (AM) processes allow for a reduction in manufacturing time, whilst constructing complex geometries. AM induces a complex thermal history which influences the microstructure in the material (1). The microstructure affects the fatigue properties where a finer microstructure is more favourable for increasing the fatigue life (2). Fatigue failure is one of the main modes of failure during a material’s service life (3). Thus, it is imperative to investigate the material’s fatigue behaviour. Major parameters of the LMD process were investigated, allowing bulk LMD coupons to be manufactured, from which fatigue specimens were extracted at three different heights. Static properties were attained through tensile testing and a Vickers Micro-Hardness evaluation. These properties allowed for calculating benchmark stresses that were utilised for fatigue testing. The biocompatibility of Ti-6Al-4V makes it desirable for medical implants – the core influence of this study. An implant is constantly subjected to a corrosive saline environment, introducing a corrosive mechanism of failure, known to decrease the life of a material. A rotary bending fatigue platform was utilised as it allowed for modifications to introduce a corrosive saline environment through means of a saline dosing system. Literature reports a higher possibility of corrosion fatigue occurring under rotary bending fatigue conditions for Ti alloy specimens (4,5). The fatigue data indicated no significant effect on the fatigue properties was evident when comparing the position of extraction, attributed to the interrupted build strategy utilised for manufacturing the bulk coupons. The specimens displayed a shift in fatigue life when subjected to a corrosive saline environment. Upon analysis, there was little variation in the microstructures at each position of extraction, attributed to the interrupted build strategy. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2021
- Full Text:
- Date Issued: 2021-04
Inhibitor search and variant analysis of Acetylcholinesterase
- Authors: Ras, Harnaud
- Date: 2021-04
- Subjects: Acetylcholinesterase , Alzheimer's disease , Acetylcholinesterase -- Inhibitors , Alzheimer's disease -- Chemotherapy , Cerebrovascular disease -- Treatment , Molecular mechanics Poisson–Boltzmann surface area (MM-PBSA)
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/178191 , vital:42919
- Description: Acetylcholinesterase (AChE) inhibition is used to treat Alzheimer's disease by increasing the availability of acetylcholine to carry nerve signals in the brain. The response to this treatment varies widely, which may be due to altered affnity to the current drugs caused by genetic variation. Various negative side-effects limit their use. As this is one of the only available therapeutic drug targets to treat Alzheimer's disease, decreasing the negative effects is of great importance. AChE is involved in biological processes that occur after acute ischemic stroke. Stroke is the third leading cause of death worldwide, and 87% of all stroke cases belong to ischemic stroke. AchEI (cholinesterase inhibitors) have been suggested to have properties that lower the risk of stroke. AChE is one of 15 verified drug targets under study for treatment of stroke. In addition to Alzheimer's disease and stroke, Lewy body disease (LBD) may be treated using cholinesterase inhibitors. The goals of this study are to find inhibitors that can potentially be used to treat Alzheimer's disease and/or stroke and to investigate variants which may affect protein dynamics and function. Two variants were analyzed, P247L and T229S. Molecular simulation of the P247L variant resulted in a disruption in protein dynamics in comparison to the wildtype. A total of 5728 molecules were screened and 10 nanosecond simulations were used to narrow down the set of compounds. The four best performing molecules were simulated for 10 nanoseconds. MM-PBSA was performed to identify molecules with high binding free energies. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Ras, Harnaud
- Date: 2021-04
- Subjects: Acetylcholinesterase , Alzheimer's disease , Acetylcholinesterase -- Inhibitors , Alzheimer's disease -- Chemotherapy , Cerebrovascular disease -- Treatment , Molecular mechanics Poisson–Boltzmann surface area (MM-PBSA)
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/178191 , vital:42919
- Description: Acetylcholinesterase (AChE) inhibition is used to treat Alzheimer's disease by increasing the availability of acetylcholine to carry nerve signals in the brain. The response to this treatment varies widely, which may be due to altered affnity to the current drugs caused by genetic variation. Various negative side-effects limit their use. As this is one of the only available therapeutic drug targets to treat Alzheimer's disease, decreasing the negative effects is of great importance. AChE is involved in biological processes that occur after acute ischemic stroke. Stroke is the third leading cause of death worldwide, and 87% of all stroke cases belong to ischemic stroke. AchEI (cholinesterase inhibitors) have been suggested to have properties that lower the risk of stroke. AChE is one of 15 verified drug targets under study for treatment of stroke. In addition to Alzheimer's disease and stroke, Lewy body disease (LBD) may be treated using cholinesterase inhibitors. The goals of this study are to find inhibitors that can potentially be used to treat Alzheimer's disease and/or stroke and to investigate variants which may affect protein dynamics and function. Two variants were analyzed, P247L and T229S. Molecular simulation of the P247L variant resulted in a disruption in protein dynamics in comparison to the wildtype. A total of 5728 molecules were screened and 10 nanosecond simulations were used to narrow down the set of compounds. The four best performing molecules were simulated for 10 nanoseconds. MM-PBSA was performed to identify molecules with high binding free energies. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2021
- Full Text:
- Date Issued: 2021-04
Innovation in family and non-family small and medium-sized businesses in South Africa
- Authors: Hayidakis, Haydn Demetri
- Date: 2021-04
- Subjects: Family-owned business enterprises , Creative ability in business , Business enterprises -- Technological innovations.
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/51640 , vital:43325
- Description: This study makes a practical contribution by providing several practical recommendations as how South African family and non family SMEs could improve innovation in their business to enhance their financial performance. , Thesis (MCom) -- Faculty of Business and Economic Sciences, Business Management, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Hayidakis, Haydn Demetri
- Date: 2021-04
- Subjects: Family-owned business enterprises , Creative ability in business , Business enterprises -- Technological innovations.
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/51640 , vital:43325
- Description: This study makes a practical contribution by providing several practical recommendations as how South African family and non family SMEs could improve innovation in their business to enhance their financial performance. , Thesis (MCom) -- Faculty of Business and Economic Sciences, Business Management, 2021
- Full Text: false
- Date Issued: 2021-04
Integrating Indigenous Ugandan social ethics into an education foundations curriculum: teacher educator’s perspectives
- Authors: Nampijja, Florence Kirabo
- Date: 2021-04
- Subjects: Indigenous peoples – Education--Africa , Decolonization Africa-Uganda , Curriculum change
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/53552 , vital:45436
- Description: The research claims that curriculum in Uganda is too westernized to the extent that indigenous Ugandan social ethics which informed pre- colonial curriculum have been totally neglected. Consequently, there are many learned but few socially educated persons in the country. Findings highlighted that teacher educators supported the integration of relevant indigenous knowledges into curriculum because indigenous knowledge is directly linked to the environment within which Ugandan students live, studies and operates after studies. They also believed that IUSEs provides a bedrock for professional conduct to flourish and thus, must be treated as an important component of the curriculum. However, though participants acknowledged the advantages of integrating IUSE into curriculum, they identified a number of obstacles to the integration of IUSEs. For instance: lack of consensus of IUSEs among the fifty-six tribes in Uganda; lack of support by the civil service deployment policy. Some confessed to the lack of adequate knowledge about IUSEs; the feeling of cognitive imperialism that is still possessed by some teacher educators and others. Among the strategies to be used for successful integration, teacher educators highlighted the need for collaborative efforts among all stakeholders, adopting the use of local languages as a medium of instruction and others. Data also revealed that the EFC currently aims at professional mentorship and giving employable skills to the students. The Such a situation manifests itself in the degeneration of ethical values by many Ugandans. This study examined teacher educators’ perspectives on integrating IUSEs in an Education Foundations curriculum (EFC). I used the decolonization theory, anti-colonial theory and indigenous knowledge discursive framework as lenses that framed the study. The findings from the study have implications for formulation of an education philosophy that is anchored in a national philosophy should be designed to guide curriculum designers in Uganda. The study further recommended that NCHE should compel all universities to integrate IUSEs into curriculum treating IUSEs as part of the minimum standards that must be satisfied before program accreditation. , Thesis (PhD) -- Faculty of Education, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Nampijja, Florence Kirabo
- Date: 2021-04
- Subjects: Indigenous peoples – Education--Africa , Decolonization Africa-Uganda , Curriculum change
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/53552 , vital:45436
- Description: The research claims that curriculum in Uganda is too westernized to the extent that indigenous Ugandan social ethics which informed pre- colonial curriculum have been totally neglected. Consequently, there are many learned but few socially educated persons in the country. Findings highlighted that teacher educators supported the integration of relevant indigenous knowledges into curriculum because indigenous knowledge is directly linked to the environment within which Ugandan students live, studies and operates after studies. They also believed that IUSEs provides a bedrock for professional conduct to flourish and thus, must be treated as an important component of the curriculum. However, though participants acknowledged the advantages of integrating IUSE into curriculum, they identified a number of obstacles to the integration of IUSEs. For instance: lack of consensus of IUSEs among the fifty-six tribes in Uganda; lack of support by the civil service deployment policy. Some confessed to the lack of adequate knowledge about IUSEs; the feeling of cognitive imperialism that is still possessed by some teacher educators and others. Among the strategies to be used for successful integration, teacher educators highlighted the need for collaborative efforts among all stakeholders, adopting the use of local languages as a medium of instruction and others. Data also revealed that the EFC currently aims at professional mentorship and giving employable skills to the students. The Such a situation manifests itself in the degeneration of ethical values by many Ugandans. This study examined teacher educators’ perspectives on integrating IUSEs in an Education Foundations curriculum (EFC). I used the decolonization theory, anti-colonial theory and indigenous knowledge discursive framework as lenses that framed the study. The findings from the study have implications for formulation of an education philosophy that is anchored in a national philosophy should be designed to guide curriculum designers in Uganda. The study further recommended that NCHE should compel all universities to integrate IUSEs into curriculum treating IUSEs as part of the minimum standards that must be satisfied before program accreditation. , Thesis (PhD) -- Faculty of Education, 2021
- Full Text:
- Date Issued: 2021-04
Internationalisation at the Nelson Mandela University Business School
- Authors: Sapepa, Ongeziwe Ndimentle
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52946 , vital:44896
- Description: The concept of internationalisation of higher education is a dynamic process, continuously shaped and reshaped by the international context in which it occurs. While the topic of internationalisation has been explored, internationalisation at the Nelson Mandela University Business School has not been investigated. This study will attempt to determine the Nelson Mandela University Business School’s internationalisation. This study used literature reviews to investigate the definition and elements of internationalisation. The literature review facilitated the creation of a conceptual model for internationalisation. The network theory and the social exchange theory informed the theoretical basis of this study. This research pursues a positivistic approach using quantitative methods of analysis. Accordingly, the conceptual model was tested using Likert scale data and statistical analysis. This study surveyed current and former Nelson Mandela University Business School students This study established that the independent factors of International Affiliation, African Collaboration, Research, Curriculum, Field trips, Benefits, Risks and COVID-19 were all found to exert a significant positive effect on Internationalisation. An Exploratory Factor Analysis was conducted to explore the relationships among factors and to identify any possible patterns in the factor relationships. All these factors (except for African Collaboration and Field trips) demonstrated positive correlations with Internationalisation. In this study, the statistical data, relating to these factors helped to establish the hypothesised model for Internationalisation at Nelson Mandela University Business School. The data are established as a baseline, which allows for comparisons to be made between surveys at similar higher education institutions. Internationalisation requires additional research to refine and test its suitability and validity to test internationalisation. This study further makes contribution to the network theory as well as to the social exchange theory as the findings support these theories. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Sapepa, Ongeziwe Ndimentle
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52946 , vital:44896
- Description: The concept of internationalisation of higher education is a dynamic process, continuously shaped and reshaped by the international context in which it occurs. While the topic of internationalisation has been explored, internationalisation at the Nelson Mandela University Business School has not been investigated. This study will attempt to determine the Nelson Mandela University Business School’s internationalisation. This study used literature reviews to investigate the definition and elements of internationalisation. The literature review facilitated the creation of a conceptual model for internationalisation. The network theory and the social exchange theory informed the theoretical basis of this study. This research pursues a positivistic approach using quantitative methods of analysis. Accordingly, the conceptual model was tested using Likert scale data and statistical analysis. This study surveyed current and former Nelson Mandela University Business School students This study established that the independent factors of International Affiliation, African Collaboration, Research, Curriculum, Field trips, Benefits, Risks and COVID-19 were all found to exert a significant positive effect on Internationalisation. An Exploratory Factor Analysis was conducted to explore the relationships among factors and to identify any possible patterns in the factor relationships. All these factors (except for African Collaboration and Field trips) demonstrated positive correlations with Internationalisation. In this study, the statistical data, relating to these factors helped to establish the hypothesised model for Internationalisation at Nelson Mandela University Business School. The data are established as a baseline, which allows for comparisons to be made between surveys at similar higher education institutions. Internationalisation requires additional research to refine and test its suitability and validity to test internationalisation. This study further makes contribution to the network theory as well as to the social exchange theory as the findings support these theories. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
Investigating financing options for business success
- Authors: Vena, Sindile
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53002 , vital:44908
- Description: The study sought to examine the extent to which the financing options chosen by entrepreneurs will have an impact on business success. The investigator adopted the progression of the ventures along the business life cycle stages as a benchmark for assessing success. The study focused primarily on small, medium and micro enterprises (SMMEs) in the Eastern Cape Information Communication Technologies (ICT) sector. An empirical study, using an online survey was conducted amongst 50 small business owners/ business representative within the ICT sector in the Eastern Cape Province. Key results revealed that the financial support of Broad-Based Black Economic Empowerment (BBBEE) and personal savings have played a key role in the success of ICT SMMEs throughout the business life cycle phases. This occurs after an ICT SMME has advanced successfully over the startup stage and aims for success in the development phase. The empirical finding revealed that for these SMMEs to attain success at this stage, they should finance their business investment projects utilising financing and credit trade in the form of bank loans, families, relatives and friends. According to the empirical finding in chapter five, the abovementioned financing options are only substantially linked to good advancement from the development phase onto the expansion phase. In addition, suggestions have been made to the ICT SMME management to include BBBEE finance, personal savings, bank loans, families, relatives and friends and trade credit as suitable funding choices for the ICT SMME's life cycle. The recommendations made included that proponents of the BBBEE legislation underpinning the enterprise development and supplier development, should intentionally pressure the private sector to comply with this legislation, as compliance will increase the pool of capital available to SMMEs.The chances of receiving these forms of support would therefore improve the probabilites of sucess for ICT SMMEs. Moreover, personal financing is crucial to successful progress for ICT SMMEs along the business life cycle. It is recommended that startup owners should always exercise iv saving in their personal capacity. In the early stages, the owner's capital will still be valuable as "seed financing" for start-up businesses., when all the other options of external funding are not available. Moreover, SMMEs should continuously explore the other financing options, such as bank loans, families, relatives and friends and trade credit only when their business goals are achieving success at the development stage. The study calls upon academia to consider performing descriptive studies to look at these findings. Through setting a concise financing approach for SMMEs in the ICT sector, SMMEs may help to close the distance between themselves and access to various financing options and supportive organisations. , Thesis (MA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Vena, Sindile
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53002 , vital:44908
- Description: The study sought to examine the extent to which the financing options chosen by entrepreneurs will have an impact on business success. The investigator adopted the progression of the ventures along the business life cycle stages as a benchmark for assessing success. The study focused primarily on small, medium and micro enterprises (SMMEs) in the Eastern Cape Information Communication Technologies (ICT) sector. An empirical study, using an online survey was conducted amongst 50 small business owners/ business representative within the ICT sector in the Eastern Cape Province. Key results revealed that the financial support of Broad-Based Black Economic Empowerment (BBBEE) and personal savings have played a key role in the success of ICT SMMEs throughout the business life cycle phases. This occurs after an ICT SMME has advanced successfully over the startup stage and aims for success in the development phase. The empirical finding revealed that for these SMMEs to attain success at this stage, they should finance their business investment projects utilising financing and credit trade in the form of bank loans, families, relatives and friends. According to the empirical finding in chapter five, the abovementioned financing options are only substantially linked to good advancement from the development phase onto the expansion phase. In addition, suggestions have been made to the ICT SMME management to include BBBEE finance, personal savings, bank loans, families, relatives and friends and trade credit as suitable funding choices for the ICT SMME's life cycle. The recommendations made included that proponents of the BBBEE legislation underpinning the enterprise development and supplier development, should intentionally pressure the private sector to comply with this legislation, as compliance will increase the pool of capital available to SMMEs.The chances of receiving these forms of support would therefore improve the probabilites of sucess for ICT SMMEs. Moreover, personal financing is crucial to successful progress for ICT SMMEs along the business life cycle. It is recommended that startup owners should always exercise iv saving in their personal capacity. In the early stages, the owner's capital will still be valuable as "seed financing" for start-up businesses., when all the other options of external funding are not available. Moreover, SMMEs should continuously explore the other financing options, such as bank loans, families, relatives and friends and trade credit only when their business goals are achieving success at the development stage. The study calls upon academia to consider performing descriptive studies to look at these findings. Through setting a concise financing approach for SMMEs in the ICT sector, SMMEs may help to close the distance between themselves and access to various financing options and supportive organisations. , Thesis (MA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
Investigating talent management strategies influencing the retention of employees with technical expertise at Aspen Pharmacare
- Ben-Mazwi Matolengwe, Yonela
- Authors: Ben-Mazwi Matolengwe, Yonela
- Date: 2021-04
- Subjects: Employee retention -- South Africa , Talent management -- South Africa , Human capital
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/50944 , vital:43174
- Description: This study examines the influence of talent management strategies on employee retention with employee engagement as a mediating variable. This study was conducted at Aspen Pharmacare Port Elizabeth site, South Africa. The population in this study is approximately 1500 employees from Aspen Pharmacare Port Elizabeth. The sampling method uses census techniques so that the number of samples used is 49 employees. The research data was collected using an online questionnaire which is then analysed using a path analysis technique using SPSS software to examine the relationships among the variables, which are: employee value proposition, work motivation and employee performance. The results show that there is a positive relationship between all talent management strategies and retention. Leadership has a largely significant correlation with retention, however, it is indicated that engagement is a mediating variable. Employees with technical expertise value the impact that leadership has in their roles at the organisation. , Thesis (MBA) -- Faculty of Business and Economic Sciences, Business Administration, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Ben-Mazwi Matolengwe, Yonela
- Date: 2021-04
- Subjects: Employee retention -- South Africa , Talent management -- South Africa , Human capital
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/50944 , vital:43174
- Description: This study examines the influence of talent management strategies on employee retention with employee engagement as a mediating variable. This study was conducted at Aspen Pharmacare Port Elizabeth site, South Africa. The population in this study is approximately 1500 employees from Aspen Pharmacare Port Elizabeth. The sampling method uses census techniques so that the number of samples used is 49 employees. The research data was collected using an online questionnaire which is then analysed using a path analysis technique using SPSS software to examine the relationships among the variables, which are: employee value proposition, work motivation and employee performance. The results show that there is a positive relationship between all talent management strategies and retention. Leadership has a largely significant correlation with retention, however, it is indicated that engagement is a mediating variable. Employees with technical expertise value the impact that leadership has in their roles at the organisation. , Thesis (MBA) -- Faculty of Business and Economic Sciences, Business Administration, 2021
- Full Text:
- Date Issued: 2021-04
Investigating the factors that influence use of ICTs for citizen engagement in Malawi
- Authors: Sibande, Rachel Chavula
- Date: 2021-04
- Subjects: Information technology -- Malawi , Political participation -- Malawi , Mobile apps -- Malawi , UTAUT , Mzinda
- Language: English
- Type: thesis , text , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/177019 , vital:42782 , 10.21504/10962/177019
- Description: Literature has suggested that Malawians are keen to participate. Malawian’s willingness to participate is evident as the country has recorded high voter turnouts during the elections in recent decades. However, literature also suggests that there is minimal citizen engagement in between elections. Elsewhere, Information and Communication Technologies (ICTs) have been used to enhance citizen engagement, but ICT led citizen engagement is still an emerging field and yet to be explored as an area of research particularly in Malawi. We thus sought to explore if the use of ICTs could improve citizen engagement with councils, councilors, and utility companies that provide water and electricity in Malawi. We developed and deployed an ICT platform called Mzinda which means My location in Malawi’s populous Chichewa language. The platform provided various channels for citizens and duty bearers to engage via SMS, USSD, web and a mobile application. We sought to understand the factors that influence citizen’s behavior intention to use an ICT platform to engage. We applied the modified UTAUT model by including Attitude and Self Efficacy social constructs that have among others been cited as limitations of the UTAUT model. We conducted factor loadings of six social constructs of the modified UTAUT model to validate content and reexamine the model in the context of citizen engagement using ICTs in Malawi. We found that, Attitude and Self Efficacy were not significant determinants of the Behaviour Intention for citizens to use the ICT platform. However, 75% of the Behaviour Intention was influenced by Perfomance Expectancy and Effort Expectancy as moderated by age and gender. Empirical evidence showed that responsiveness and actionability of councils and councillors had improved. We also learned that citizens believed that service delivery had improved and that they had more influence over councils, councillors, and the utility companies because of using the ICT platform. We conclude by noting that improvements in service delivery; enhanced responsiveness and actionability of councils, councillors and the utility companies were not necessarily as a result of the ICT platform alone; but a combination of ICTs and non-technology mechanisms of engaging the stakeholders through community campaigns, radio programs, print media engagement, community meetings and debates among others. It is evident that ICTs are not the panacea of all citizen engagement problems. This research can be useful to researchers and practitioners in the technology and citizen engagement domains. , Thesis (MSc) -- Faculty of Science, Department of Computer Science, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Sibande, Rachel Chavula
- Date: 2021-04
- Subjects: Information technology -- Malawi , Political participation -- Malawi , Mobile apps -- Malawi , UTAUT , Mzinda
- Language: English
- Type: thesis , text , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/177019 , vital:42782 , 10.21504/10962/177019
- Description: Literature has suggested that Malawians are keen to participate. Malawian’s willingness to participate is evident as the country has recorded high voter turnouts during the elections in recent decades. However, literature also suggests that there is minimal citizen engagement in between elections. Elsewhere, Information and Communication Technologies (ICTs) have been used to enhance citizen engagement, but ICT led citizen engagement is still an emerging field and yet to be explored as an area of research particularly in Malawi. We thus sought to explore if the use of ICTs could improve citizen engagement with councils, councilors, and utility companies that provide water and electricity in Malawi. We developed and deployed an ICT platform called Mzinda which means My location in Malawi’s populous Chichewa language. The platform provided various channels for citizens and duty bearers to engage via SMS, USSD, web and a mobile application. We sought to understand the factors that influence citizen’s behavior intention to use an ICT platform to engage. We applied the modified UTAUT model by including Attitude and Self Efficacy social constructs that have among others been cited as limitations of the UTAUT model. We conducted factor loadings of six social constructs of the modified UTAUT model to validate content and reexamine the model in the context of citizen engagement using ICTs in Malawi. We found that, Attitude and Self Efficacy were not significant determinants of the Behaviour Intention for citizens to use the ICT platform. However, 75% of the Behaviour Intention was influenced by Perfomance Expectancy and Effort Expectancy as moderated by age and gender. Empirical evidence showed that responsiveness and actionability of councils and councillors had improved. We also learned that citizens believed that service delivery had improved and that they had more influence over councils, councillors, and the utility companies because of using the ICT platform. We conclude by noting that improvements in service delivery; enhanced responsiveness and actionability of councils, councillors and the utility companies were not necessarily as a result of the ICT platform alone; but a combination of ICTs and non-technology mechanisms of engaging the stakeholders through community campaigns, radio programs, print media engagement, community meetings and debates among others. It is evident that ICTs are not the panacea of all citizen engagement problems. This research can be useful to researchers and practitioners in the technology and citizen engagement domains. , Thesis (MSc) -- Faculty of Science, Department of Computer Science, 2021
- Full Text:
- Date Issued: 2021-04
Kwelo lizwe leentsomi : iintsomi zesiXhosa
- Authors: Sigcau, Bulelwa Monica
- Date: 2021-04
- Subjects: Creative writing (Higher education) -- South Africa , Xhosa fiction -- 21st century , Diaries -- Authorship , Short stories, Xhosa -- 21st century , African fiction -- History and criticism , English fiction -- History and criticism
- Language: Xhosa
- Type: thesis , text , Masters , MA
- Identifier: http://hdl.handle.net/10962/178270 , vital:42926
- Description: Ukuphosa kuvimba wolwazi ngeentsomi zesiXhosa, le thisisi iqulathe iintsomi-mabali eziqanjwe zabaliswa kusetyenziswa ulwimi, umxholo nemixholo engenelelayo engeziganeko zemihla ngemihla, abalinganiswa, isakhiwo sentsomi nesimo sentlalo zala maxesha siphila kuwo. Ezi ntsomi zixhaswa kakhulu yimifanekiso ephilayo, ukusetyenziswa kwemigca emifutshane ezoba isimo sentlalo nevakala ingathi yimibongo ngenxa yokuqupha kwayo. Umsebenzi kaR.F. Mcimeli, kwincwadi ethi, Ingqaka kaMaqhudeni iqulethe iintsomi ezisondeleyo kwezi ziqanjwe kulo msebenzi, ngakumbi iintsomi ezizezi, uNomvula noNomvulazana, uDumisani nesigebenga esingabonwayo, uNomaciko noCikokazi, nezinye. Umsebenzi kaNongenile Masithathu Zenani (2006) oqokelelwe nguHarold Scheub kwincwadi ethi South African voices: A long time passed ube negaleloo elikhulu ukubonisa indima esele idlaliwe kwiintsomi zesiXhosa. UKholeka Sigenu (2002) kwincwandi ethi Ezakowethu naye ube nefuthe kwindlela ezi ntsomi eziqanjwe ngayo nokuqinisekisa ukuba ngenene zongeza ulwazi olutsha. Ezi ntsomi-mabali zibhentsise okulungileyo nokuhenxayo ngaphandle kokushumayela nokuveza abalinganiswa njengeengilosi. Ndiluthande kakhulu nohlobo lukaAmos Tutuola lokubhala, ndizame ukusondeza uhlobo lwam lokubhala kolu hlobo lukaAmos Tutuola. Ndilandele ifuthe lohlobo lokubhala olubizwa ngeflash fiction. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Sigcau, Bulelwa Monica
- Date: 2021-04
- Subjects: Creative writing (Higher education) -- South Africa , Xhosa fiction -- 21st century , Diaries -- Authorship , Short stories, Xhosa -- 21st century , African fiction -- History and criticism , English fiction -- History and criticism
- Language: Xhosa
- Type: thesis , text , Masters , MA
- Identifier: http://hdl.handle.net/10962/178270 , vital:42926
- Description: Ukuphosa kuvimba wolwazi ngeentsomi zesiXhosa, le thisisi iqulathe iintsomi-mabali eziqanjwe zabaliswa kusetyenziswa ulwimi, umxholo nemixholo engenelelayo engeziganeko zemihla ngemihla, abalinganiswa, isakhiwo sentsomi nesimo sentlalo zala maxesha siphila kuwo. Ezi ntsomi zixhaswa kakhulu yimifanekiso ephilayo, ukusetyenziswa kwemigca emifutshane ezoba isimo sentlalo nevakala ingathi yimibongo ngenxa yokuqupha kwayo. Umsebenzi kaR.F. Mcimeli, kwincwadi ethi, Ingqaka kaMaqhudeni iqulethe iintsomi ezisondeleyo kwezi ziqanjwe kulo msebenzi, ngakumbi iintsomi ezizezi, uNomvula noNomvulazana, uDumisani nesigebenga esingabonwayo, uNomaciko noCikokazi, nezinye. Umsebenzi kaNongenile Masithathu Zenani (2006) oqokelelwe nguHarold Scheub kwincwadi ethi South African voices: A long time passed ube negaleloo elikhulu ukubonisa indima esele idlaliwe kwiintsomi zesiXhosa. UKholeka Sigenu (2002) kwincwandi ethi Ezakowethu naye ube nefuthe kwindlela ezi ntsomi eziqanjwe ngayo nokuqinisekisa ukuba ngenene zongeza ulwazi olutsha. Ezi ntsomi-mabali zibhentsise okulungileyo nokuhenxayo ngaphandle kokushumayela nokuveza abalinganiswa njengeengilosi. Ndiluthande kakhulu nohlobo lukaAmos Tutuola lokubhala, ndizame ukusondeza uhlobo lwam lokubhala kolu hlobo lukaAmos Tutuola. Ndilandele ifuthe lohlobo lokubhala olubizwa ngeflash fiction. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-04
Large mammalian fauna of the Palaeo-Agulhas Plain: predicting habitat use and range distribution
- Authors: Brooke, Christopher F
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Herbivores
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/52332 , vital:43590
- Description: Understanding the variations in structure and abundance of animals and what leads to their distribution within the landscape has captured the attention of ecologists for centuries. Importantly, knowledge of current behaviour of large mammals can be used to inform historic population dynamics and is essential to understanding how early humans used large mammals as a foraging resource. Central to this thesis and improving our understanding of large herbivores is the Palaeo-Agulhas Plain (PAP) where large mammalian herbivores formed a key food resource for early humans. The PAP, now submerged off the southern Cape of South Africa, formed a novel ecosystem during lower sea levels. Characterised by large expanses of nutrient rich grasslands and large grazing herbivores, the PAP stands in stark contrast to the nutrient poor fynbos ecosystems that is in the southern Cape today. In this thesis I focus on the Last Glacial Maximum (LGM; ~20 ka) when the PAP was last fully exposed to answer questions relating to the habitat use and range distribution of large herbivores. Importantly, through the Paleoscape Project, modelled climate, soil and vegetation have made these recreations of large mammals possible. Using modelled climate and vegetation this thesis aims to model the large herbivore communities and understand the influence of early humans on the PAP during the LGM for successful integration into the PaleoscapeABM (the PAP agent-based model). To improve our understanding of large mammals on the PAP I identified five large herbivores that became extinct on the PAP since the LGM and modelled their behavioural and physical traits using k-Nearest Neighbour imputation. I predicted the biomass of large herbivores across the PAP using actual biomass of large herbivores from 39 protected areas across South Africa (spanning five functional groups to include the extinct species) across a rainfall gradient and different biomes. The distribution of large herbivores would likely have been driven by similar top-down and bottom-up drivers we see in large herbivore ecology today. Knowing this, I created a predictive model for large mammals by predicting the probability of occurrence of functional groups of large herbivores in relation to environmental drivers and humans. Results showed that all species (except Antidorcas australis) were adapted to the grassy environment of the PAP and these specialisations likely contributed to their extinction along with changing climates and intensified hunting from humans. When predicting herbivore viii biomass, biome was the most important factor influencing the relationship between herbivores and rainfall. In general, large herbivore biomass increased with rainfall across biomes, except for grassland. Finally, I showed the probability of occurrence of large herbivores was influenced by early humans, water availability and a landscape of fear on the PAP. Through this thesis I have successfully provided detailed accounts of the biomass and probability of occurrence of large herbivores on the PAP. Importantly, this information can be seamlessly integrated into the PaleoscapeABM. Finally, I highlight the importance of this knowledge in understanding early humans, the potential shortcomings of this study and resulting areas where research needs to be focused. , Thesis (PhD) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Brooke, Christopher F
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Herbivores
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/52332 , vital:43590
- Description: Understanding the variations in structure and abundance of animals and what leads to their distribution within the landscape has captured the attention of ecologists for centuries. Importantly, knowledge of current behaviour of large mammals can be used to inform historic population dynamics and is essential to understanding how early humans used large mammals as a foraging resource. Central to this thesis and improving our understanding of large herbivores is the Palaeo-Agulhas Plain (PAP) where large mammalian herbivores formed a key food resource for early humans. The PAP, now submerged off the southern Cape of South Africa, formed a novel ecosystem during lower sea levels. Characterised by large expanses of nutrient rich grasslands and large grazing herbivores, the PAP stands in stark contrast to the nutrient poor fynbos ecosystems that is in the southern Cape today. In this thesis I focus on the Last Glacial Maximum (LGM; ~20 ka) when the PAP was last fully exposed to answer questions relating to the habitat use and range distribution of large herbivores. Importantly, through the Paleoscape Project, modelled climate, soil and vegetation have made these recreations of large mammals possible. Using modelled climate and vegetation this thesis aims to model the large herbivore communities and understand the influence of early humans on the PAP during the LGM for successful integration into the PaleoscapeABM (the PAP agent-based model). To improve our understanding of large mammals on the PAP I identified five large herbivores that became extinct on the PAP since the LGM and modelled their behavioural and physical traits using k-Nearest Neighbour imputation. I predicted the biomass of large herbivores across the PAP using actual biomass of large herbivores from 39 protected areas across South Africa (spanning five functional groups to include the extinct species) across a rainfall gradient and different biomes. The distribution of large herbivores would likely have been driven by similar top-down and bottom-up drivers we see in large herbivore ecology today. Knowing this, I created a predictive model for large mammals by predicting the probability of occurrence of functional groups of large herbivores in relation to environmental drivers and humans. Results showed that all species (except Antidorcas australis) were adapted to the grassy environment of the PAP and these specialisations likely contributed to their extinction along with changing climates and intensified hunting from humans. When predicting herbivore viii biomass, biome was the most important factor influencing the relationship between herbivores and rainfall. In general, large herbivore biomass increased with rainfall across biomes, except for grassland. Finally, I showed the probability of occurrence of large herbivores was influenced by early humans, water availability and a landscape of fear on the PAP. Through this thesis I have successfully provided detailed accounts of the biomass and probability of occurrence of large herbivores on the PAP. Importantly, this information can be seamlessly integrated into the PaleoscapeABM. Finally, I highlight the importance of this knowledge in understanding early humans, the potential shortcomings of this study and resulting areas where research needs to be focused. , Thesis (PhD) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text: false
- Date Issued: 2021-04
Larval fish dynamics within the coastal nearshore of the Eastern Cape, South Africa
- Authors: Sotshongaye, Oko
- Date: 2021-04
- Subjects: Fishes -- Larvae -- South Africa -- Eastern Cape , Fishes -- Larvae -- Development -- South Africa -- Eastern Cape , Fishes -- Larvae -- Ecology -- South Africa -- Eastern Cape , Coastal ecology -- South Africa -- Eastern Cape , Fishes -- Larvae -- Dispersal -- South Africa -- Eastern Cape
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/176977 , vital:42776
- Description: The coastal nearshore is important for the early development of fishes as it is used for spawning and/or as a nursery. One of the central concerns in coastal ecology is understanding the role of the nearshore for larvae, ultimately providing key knowledge on population dynamics and hence helping in making decisions pertaining to conservation and resource management. The aim of this study was to investigate the alongshore and cross-shore distribution of larval fishes and the links to the physio-chemical conditions (including prevailing winds) and hydrodynamics in the region of Algoa Bay, situated on the south east coast in the warm temperate region of South Africa. Fish larvae were sampled at nine sites for the first component of the study (January 2016 –March 2017) and at four sites for the second component (November 2019), near the surface and bottom (15-50 m) of the water column as well as at two different distances from shore (~400 m/~3 km) using a set of bongo plankton nets towed behind a boat. Environmental data were simultaneously collected using and acoustic Doppler current profiler (ADCP) and conductivity, temperature, depth (CTD) profiler. Larval fish abundance generally decreased with increasing distance from the shore, however, this varied in space and time, with some larval species recorded in high abundances offshore. Close inshore the larvae of coastal fish species producing benthic eggs (CBE) including the Blenniidae and Gobiesocidae mostly dominated, while offshore the larvae of coastal fish species producing pelagic eggs (CPE) i.e. Sparidae and Cynoglossidae, as well as pelagic fish species producing pelagic eggs (PPE) i.e. Clupeidae and Engraulidae mostly dominated. Vertical distribution of larvae differed according to taxon, with the Callionymidae (CPE), Cynoglossidae and Gobiesocidae occurring at high densities at the bottom of the water column, while the Blenniidae dominated near the surface. Fluorescence, temperature and salinity varied with depth (surface/bottom), being particularly high at the surface; currents moved faster at the surface than the bottom of the water column. Increased abundances of larval fishes were evident after upwelling events (associated with easterly winds) in the Bay, while during downwelling (associated with westerly winds), low densities were generally recorded, except for the sites situated near headlands/capes where there were higher densities of fish larvae during downwelling events. Overall, the results of this study suggest that spawning mode of the adults, oceanography and environmental conditions coupled with what is known of the behaviour of fish larvae, were important in shaping the larval fish community of the Algoa Bay region. These results highlight the importance of incorporating multiple biological (developmental stage, reproductive mode, species) and physical (currents, fluorescence, wind-driven up/down-welling) factors when addressing the mechanims of transport of larval fish in the coastal nearshore. , Thesis (MSc) -- Faculty of Science, Department of Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Sotshongaye, Oko
- Date: 2021-04
- Subjects: Fishes -- Larvae -- South Africa -- Eastern Cape , Fishes -- Larvae -- Development -- South Africa -- Eastern Cape , Fishes -- Larvae -- Ecology -- South Africa -- Eastern Cape , Coastal ecology -- South Africa -- Eastern Cape , Fishes -- Larvae -- Dispersal -- South Africa -- Eastern Cape
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/176977 , vital:42776
- Description: The coastal nearshore is important for the early development of fishes as it is used for spawning and/or as a nursery. One of the central concerns in coastal ecology is understanding the role of the nearshore for larvae, ultimately providing key knowledge on population dynamics and hence helping in making decisions pertaining to conservation and resource management. The aim of this study was to investigate the alongshore and cross-shore distribution of larval fishes and the links to the physio-chemical conditions (including prevailing winds) and hydrodynamics in the region of Algoa Bay, situated on the south east coast in the warm temperate region of South Africa. Fish larvae were sampled at nine sites for the first component of the study (January 2016 –March 2017) and at four sites for the second component (November 2019), near the surface and bottom (15-50 m) of the water column as well as at two different distances from shore (~400 m/~3 km) using a set of bongo plankton nets towed behind a boat. Environmental data were simultaneously collected using and acoustic Doppler current profiler (ADCP) and conductivity, temperature, depth (CTD) profiler. Larval fish abundance generally decreased with increasing distance from the shore, however, this varied in space and time, with some larval species recorded in high abundances offshore. Close inshore the larvae of coastal fish species producing benthic eggs (CBE) including the Blenniidae and Gobiesocidae mostly dominated, while offshore the larvae of coastal fish species producing pelagic eggs (CPE) i.e. Sparidae and Cynoglossidae, as well as pelagic fish species producing pelagic eggs (PPE) i.e. Clupeidae and Engraulidae mostly dominated. Vertical distribution of larvae differed according to taxon, with the Callionymidae (CPE), Cynoglossidae and Gobiesocidae occurring at high densities at the bottom of the water column, while the Blenniidae dominated near the surface. Fluorescence, temperature and salinity varied with depth (surface/bottom), being particularly high at the surface; currents moved faster at the surface than the bottom of the water column. Increased abundances of larval fishes were evident after upwelling events (associated with easterly winds) in the Bay, while during downwelling (associated with westerly winds), low densities were generally recorded, except for the sites situated near headlands/capes where there were higher densities of fish larvae during downwelling events. Overall, the results of this study suggest that spawning mode of the adults, oceanography and environmental conditions coupled with what is known of the behaviour of fish larvae, were important in shaping the larval fish community of the Algoa Bay region. These results highlight the importance of incorporating multiple biological (developmental stage, reproductive mode, species) and physical (currents, fluorescence, wind-driven up/down-welling) factors when addressing the mechanims of transport of larval fish in the coastal nearshore. , Thesis (MSc) -- Faculty of Science, Department of Zoology and Entomology, 2021
- Full Text:
- Date Issued: 2021-04
Linking agrochemical pollution with the aquatic ecological integrity of the Twee River Catchment, Western Cape
- Authors: Brink, Zanné
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Ecological integrity
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52326 , vital:43588
- Description: This study was initiated in the Twee River system due to the threat posed by agrochemicals on the occurrence of the endemic and endangered fish species found within the catchment. Poor knowledge and understanding of the environmental effects of fertilizers, pesticides and other agrochemicals among small and large commercial farmers within the study area, in combination with their intensive use may have resulted in chemical contamination above environmentally safe concentrations. Numerous studies have highlighted the fact that more research needs to be conducted to identify the key threats to the continued existence of specifically the Critically Endangered Sedercypris erubescens. The overall aim of this study was to determine the spatial and temporal patterns in aquatic ecosystem diversity in the Twee River catchment as indicated by macroinvertebrate and native fish distribution and abundance. It was further investigated if there was a link between agrochemical pollution and the aquatic ecological integrity of the Twee River catchment. Selected sampling sites were identified and sampled to determine the presence and concentration of pesticides entering the water of the Twee River system during run-off and event-based spraying. Furthermore, the effect of these pesticides on the distribution and abundance of the aquatic biota were determined using SASS5 for the macroinvertebrate populations and visually sampling the distribution of the native and non-native fish in the Twee River catchment. This study supports suggestions made by previous studies, that sub-lethal to lethal concentrations of insecticides could be a threat to the long-term survival of benthic macroinvertebrates and potentially the more sensitive endemic fish species within the Twee River system. More focussed research is needed to address impacts of pesticides within this catchment. Agricultural and conservation efforts should be aimed at developing of a shared vision amongst stakeholders, to allow for the longterm conservation of the endemic fish of the Twee River. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Brink, Zanné
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Ecological integrity
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52326 , vital:43588
- Description: This study was initiated in the Twee River system due to the threat posed by agrochemicals on the occurrence of the endemic and endangered fish species found within the catchment. Poor knowledge and understanding of the environmental effects of fertilizers, pesticides and other agrochemicals among small and large commercial farmers within the study area, in combination with their intensive use may have resulted in chemical contamination above environmentally safe concentrations. Numerous studies have highlighted the fact that more research needs to be conducted to identify the key threats to the continued existence of specifically the Critically Endangered Sedercypris erubescens. The overall aim of this study was to determine the spatial and temporal patterns in aquatic ecosystem diversity in the Twee River catchment as indicated by macroinvertebrate and native fish distribution and abundance. It was further investigated if there was a link between agrochemical pollution and the aquatic ecological integrity of the Twee River catchment. Selected sampling sites were identified and sampled to determine the presence and concentration of pesticides entering the water of the Twee River system during run-off and event-based spraying. Furthermore, the effect of these pesticides on the distribution and abundance of the aquatic biota were determined using SASS5 for the macroinvertebrate populations and visually sampling the distribution of the native and non-native fish in the Twee River catchment. This study supports suggestions made by previous studies, that sub-lethal to lethal concentrations of insecticides could be a threat to the long-term survival of benthic macroinvertebrates and potentially the more sensitive endemic fish species within the Twee River system. More focussed research is needed to address impacts of pesticides within this catchment. Agricultural and conservation efforts should be aimed at developing of a shared vision amongst stakeholders, to allow for the longterm conservation of the endemic fish of the Twee River. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text: false
- Date Issued: 2021-04
Local economic development in the rural town of Butterworth, Mnquma Municipality, 1997-2013
- Authors: Magengelele, Mkhuseli
- Date: 2021-04
- Subjects: Rural development -- South Africa -- Eastern Cape -- Management , Economic development projects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/51809 , vital:43374
- Description: The purpose of this study is to investigate how Local Economic Development (LED) in Mnquma, with a particular focus on Butterworth, has impacted the alleviation of inequality, underdevelopment and poverty among the poorest of the poor. The aim of the literature review is to analyse the existing knowledge about LED, its impact in the alleviation of inequality, underdevelopment and poverty among the poorest of the poor and the tangible concrete pointer that shows that all key sector role-players are participating in LED. This study is qualitative in nature and employs a case study as the research design. The convenience sampling technique was used to select seven municipal workers and eight members of the community, giving a total of 14 participants. An open-ended interview schedule was used for the face-to-face in-depth interviews in order to collect data from the participants. Collected data was thematically analysed and raw data put set into meaningful segments, codes and categories. Themes were drawn from the responses of the participants and analysed. Some of the findings were that Butterworth municipality was seen as having both urban and rural features. On the other hand, it was found that the municipality did nothing to provide basic services to the people, the towns were dirty and streets lights were not working, there was insufficient representation based on the number of councillors elected under the Mnquma Local Municipality, municipality councillors lack skills, do not give feedback to the communities and need to be capacitated. The study also found that: ward committee members are less involved in the governance of the local municipality; there is a prevalence of high level unemployment and poverty in the municipality. However, there are various expanded Public Works Programmes currently going on in the municipality. The researcher made some recommendations to ensure effective LED with regard to the alleviation of inequality, underdevelopment and poverty among the poorest of the poor of the Mnquma area in the Butterworth municipality. , Thesis (MA) -- Faculty of Business and Economic Sciences, Development Studies, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Magengelele, Mkhuseli
- Date: 2021-04
- Subjects: Rural development -- South Africa -- Eastern Cape -- Management , Economic development projects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/51809 , vital:43374
- Description: The purpose of this study is to investigate how Local Economic Development (LED) in Mnquma, with a particular focus on Butterworth, has impacted the alleviation of inequality, underdevelopment and poverty among the poorest of the poor. The aim of the literature review is to analyse the existing knowledge about LED, its impact in the alleviation of inequality, underdevelopment and poverty among the poorest of the poor and the tangible concrete pointer that shows that all key sector role-players are participating in LED. This study is qualitative in nature and employs a case study as the research design. The convenience sampling technique was used to select seven municipal workers and eight members of the community, giving a total of 14 participants. An open-ended interview schedule was used for the face-to-face in-depth interviews in order to collect data from the participants. Collected data was thematically analysed and raw data put set into meaningful segments, codes and categories. Themes were drawn from the responses of the participants and analysed. Some of the findings were that Butterworth municipality was seen as having both urban and rural features. On the other hand, it was found that the municipality did nothing to provide basic services to the people, the towns were dirty and streets lights were not working, there was insufficient representation based on the number of councillors elected under the Mnquma Local Municipality, municipality councillors lack skills, do not give feedback to the communities and need to be capacitated. The study also found that: ward committee members are less involved in the governance of the local municipality; there is a prevalence of high level unemployment and poverty in the municipality. However, there are various expanded Public Works Programmes currently going on in the municipality. The researcher made some recommendations to ensure effective LED with regard to the alleviation of inequality, underdevelopment and poverty among the poorest of the poor of the Mnquma area in the Butterworth municipality. , Thesis (MA) -- Faculty of Business and Economic Sciences, Development Studies, 2021
- Full Text:
- Date Issued: 2021-04
Main thesis title 2021: A framework for a waterfront development in Nelson Mandela Bay
- Sethosa, Thandisizwe Theophilus
- Authors: Sethosa, Thandisizwe Theophilus
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master' theses , text
- Identifier: http://hdl.handle.net/10948/52957 , vital:44902
- Description: Internationally, waterfront developments have become major tourist attractions and added to a city's infrastructure. This study seeks to traverse available literature to develop a conceptual framework for Waterfront Development in Nelson Mandela Bay. A framework is a systematic arrangement of ideas that are used to establish an understanding of ideas and principles that are relevant to a research study. Following the comprehensive analysis of literature that has been carried out globally, a conceptual framework was adopted as a blueprint for successful Waterfront Developments from the Port of Adelaide in South Australia. The framework essentially comprises one dependent factor, namely A successful Waterfront Development. This factor was expected to be influenced positively by the following independent factors, namely Functionality, Accessibility, Natural Environment and Culture, History and Memory. This research pursued a positivistic approach using quantitative methods of analysis. Accordingly, the researcher tested a conceptual model through the use of an online survey and statistical analysis. The hypothesised Waterfront Development Model for Nelson Mandela Bay was evaluated statistically. This includes a detailed process of the assessment of the factors via Exploratory Factor Analysis (EFA). The EFA produced new factors and rearranged the items allocated to different factors in accordance to best statistical fit. The study's questionnaire was distributed to the residents of Nelson Mandela Bay and was completed by a sample of 202 residents. The study sought to identify relevant factors to inform management on how to drive a successful waterfront development imperative in the city. The factor ‘Critical Success Factor’ in the hypothesised model, through the EFA process produced four additional factors namely, ‘Unique NMB Identity’, ‘Public-Private Partnership’, ‘Development Time frames’ and ‘Ownership Structure’. The factor ‘Functionality ‘in the hypothesised model, through the EFA process produced three additional factors namely, ‘Leisure Activities’, ‘Port Activities’ and ‘Residential Potential. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Sethosa, Thandisizwe Theophilus
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master' theses , text
- Identifier: http://hdl.handle.net/10948/52957 , vital:44902
- Description: Internationally, waterfront developments have become major tourist attractions and added to a city's infrastructure. This study seeks to traverse available literature to develop a conceptual framework for Waterfront Development in Nelson Mandela Bay. A framework is a systematic arrangement of ideas that are used to establish an understanding of ideas and principles that are relevant to a research study. Following the comprehensive analysis of literature that has been carried out globally, a conceptual framework was adopted as a blueprint for successful Waterfront Developments from the Port of Adelaide in South Australia. The framework essentially comprises one dependent factor, namely A successful Waterfront Development. This factor was expected to be influenced positively by the following independent factors, namely Functionality, Accessibility, Natural Environment and Culture, History and Memory. This research pursued a positivistic approach using quantitative methods of analysis. Accordingly, the researcher tested a conceptual model through the use of an online survey and statistical analysis. The hypothesised Waterfront Development Model for Nelson Mandela Bay was evaluated statistically. This includes a detailed process of the assessment of the factors via Exploratory Factor Analysis (EFA). The EFA produced new factors and rearranged the items allocated to different factors in accordance to best statistical fit. The study's questionnaire was distributed to the residents of Nelson Mandela Bay and was completed by a sample of 202 residents. The study sought to identify relevant factors to inform management on how to drive a successful waterfront development imperative in the city. The factor ‘Critical Success Factor’ in the hypothesised model, through the EFA process produced four additional factors namely, ‘Unique NMB Identity’, ‘Public-Private Partnership’, ‘Development Time frames’ and ‘Ownership Structure’. The factor ‘Functionality ‘in the hypothesised model, through the EFA process produced three additional factors namely, ‘Leisure Activities’, ‘Port Activities’ and ‘Residential Potential. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
Main thesis title 2021: Evaluating the incentive to move freight distribution from road to rail
- Authors: Williams, John Steven
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52953 , vital:44909
- Description: South Africa’s uncompetitive freight logistics system is severely hampering the country’s competitiveness and the current disproportionate reliance on the road freight sector is a main contributing factor. The need for a modal shift from road to rail has long been advocated as a necessity to correct this freight logistics imbalance. This study aims to gain a better understanding of the incentives needed to move freight distribution from road to rail within shorter distance corridors and specifically the Port Elizabeth- Gauteng corridor. Specifically, it evaluates the incentives needed, the importance of cost, distance and whether special capabilities are required to achieve such a move. Empirical data were collected with an online survey and distributed via the Road freight Association (RFA) to transport operators and micro operators within South Africa. Statistical analysis was used to analyse the main research and sub-questions through descriptive statistics, multiple regression analysis and Pearson correlation. The results showed that a mostly strong positive correlation exists between the measured variables in this study while also indicating a significant relationship between the independent variables and moving freight distribution from road to rail. These results proved that all the factors are related to each other and that implementing a move of freight from road to rail would need to include the consideration of all these factors. The study concludes that moving freight distribution from road to rail will be possible if incentives regarding cost rebates or subsidies amongst others are taken into account and included in additional future legislation or more practical implementation plans. , Thesis (MBA) -- Faculty of Business and Economic Sciencence, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Williams, John Steven
- Date: 2021-04
- Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52953 , vital:44909
- Description: South Africa’s uncompetitive freight logistics system is severely hampering the country’s competitiveness and the current disproportionate reliance on the road freight sector is a main contributing factor. The need for a modal shift from road to rail has long been advocated as a necessity to correct this freight logistics imbalance. This study aims to gain a better understanding of the incentives needed to move freight distribution from road to rail within shorter distance corridors and specifically the Port Elizabeth- Gauteng corridor. Specifically, it evaluates the incentives needed, the importance of cost, distance and whether special capabilities are required to achieve such a move. Empirical data were collected with an online survey and distributed via the Road freight Association (RFA) to transport operators and micro operators within South Africa. Statistical analysis was used to analyse the main research and sub-questions through descriptive statistics, multiple regression analysis and Pearson correlation. The results showed that a mostly strong positive correlation exists between the measured variables in this study while also indicating a significant relationship between the independent variables and moving freight distribution from road to rail. These results proved that all the factors are related to each other and that implementing a move of freight from road to rail would need to include the consideration of all these factors. The study concludes that moving freight distribution from road to rail will be possible if incentives regarding cost rebates or subsidies amongst others are taken into account and included in additional future legislation or more practical implementation plans. , Thesis (MBA) -- Faculty of Business and Economic Sciencence, NMU Business School, 2021
- Full Text: false
- Date Issued: 2021-04
Main thesis title 2021: subtitle if needed. If no subtitle follow instructions in manual
- Last name, First name (remember to update the ORCID) edited
- Authors: Last name, First name (remember to update the ORCID) edited
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/21677 , vital:51741
- Description: Edited this field. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021 edited , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Last name, First name (remember to update the ORCID) edited
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/21677 , vital:51741
- Description: Edited this field. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021 edited , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04
Main thesis title map: subtitle if needed. If no subtitle follow instructions in manual
- Last name, First name (remember to update the ORCID)
- Authors: Last name, First name (remember to update the ORCID)
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27231 , vital:66479
- Description: Abstract text. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Last name, First name (remember to update the ORCID)
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27231 , vital:66479
- Description: Abstract text. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04
Main thesis title map: subtitle if needed. If no subtitle follow instructions in manual
- Last name, First name (remember to update the ORCID)
- Authors: Last name, First name (remember to update the ORCID)
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/26141 , vital:64919
- Description: Abstract text. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Last name, First name (remember to update the ORCID)
- Date: 2021-04
- Subjects: 1 inch = 200 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Eastern Cape (South Africa) Maps , South Africa History 1836-1909 Maps
- Language: English
- Type: Master's/Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/26141 , vital:64919
- Description: Abstract text. , Thesis (MA) -- Faculty of Humanities, Journalsim and Media Studies, 2021
- Full Text:
- Date Issued: 2021-04