Impact of marine inundation after a period of drought on the lakeshore vegetation of Lake St Lucia, South Africa: resilience of estuarine vegetation
- Sieben, E J J, Ellery, William F N, Dullo, B W, Grootjans, A P
- Authors: Sieben, E J J , Ellery, William F N , Dullo, B W , Grootjans, A P
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144443 , vital:38346 , DOI: 10.2989/16085914.2015.1032208
- Description: The shore of Lake St Lucia in the vicinity of Catalina Bay, in the southern part of the lake, receives freshwater input as surface and groundwater seepage from the adjacent elevated coastal plain. Vegetation, water quality and landform were recorded on the lakeshore and on the dry lakebed near one of these seepage zones. This was done along a gradient perpendicular to the lakeshore and along the lakeshore away from the fluvial source of freshwater input. A number of plant communities were found along a gradient of water salinity from the shoreline (fresh water) towards the centre of the lake, and also away from the fluvial input of water (increasingly saline). Species richness decreased with increasing salinity. The first study was conducted in 2006 after a prolonged drought associated with low lake levels and closure of the mouth, and repeated again in 2010 three years after breaching of the estuarine mouth by a tropical cyclone at sea, which caused inundation of the partly dry lakebed with sea water. The vegetation of the lakeshore after these major disturbances was remarkably similar in the two time periods, suggesting rapid recovery near freshwater seepage zones, following an influx of sea water.
- Full Text:
- Date Issued: 2015
- Authors: Sieben, E J J , Ellery, William F N , Dullo, B W , Grootjans, A P
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144443 , vital:38346 , DOI: 10.2989/16085914.2015.1032208
- Description: The shore of Lake St Lucia in the vicinity of Catalina Bay, in the southern part of the lake, receives freshwater input as surface and groundwater seepage from the adjacent elevated coastal plain. Vegetation, water quality and landform were recorded on the lakeshore and on the dry lakebed near one of these seepage zones. This was done along a gradient perpendicular to the lakeshore and along the lakeshore away from the fluvial source of freshwater input. A number of plant communities were found along a gradient of water salinity from the shoreline (fresh water) towards the centre of the lake, and also away from the fluvial input of water (increasingly saline). Species richness decreased with increasing salinity. The first study was conducted in 2006 after a prolonged drought associated with low lake levels and closure of the mouth, and repeated again in 2010 three years after breaching of the estuarine mouth by a tropical cyclone at sea, which caused inundation of the partly dry lakebed with sea water. The vegetation of the lakeshore after these major disturbances was remarkably similar in the two time periods, suggesting rapid recovery near freshwater seepage zones, following an influx of sea water.
- Full Text:
- Date Issued: 2015
Effects of natural antioxidants and thermal treatment on quality of meat from Bonsmara and non-descripts cattle
- Authors: Falowo, Andrew Bamidele
- Date: 2015
- Subjects: Meat -- Preservation Antioxidants Meat -- Microbiology
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/2589 , vital:27906
- Description: The broad objective of this study was to determine the effects of natural antioxidants and thermal treatment on quality of meat from Bonsmara and non-descript cattle. A survey was conducted among 222 consumers in Alice (Fort Hare University community), Eastern Cape Province to determine the level of their awareness on application of antioxidants as preservatives in meat and meat products during storage. Representative samples of Muscularis longissimuss thoracis et lumborum and liver were collected from each carcass of Bonsmara (n=40) and non-descript (n=40) cattle reared on natural pasture to determine the effect of natural antioxidants and thermal treatment on their quality. The results from the survey revealed that 51.35 percent of the respondents had not heard about the use of antioxidant as preservatives in meat products. However, among the remaining respondents (48.65 percent) that were aware of antioxidant and its use as preservative, about 19 percent knew of natural antioxidants, 35 percent synthetic antioxidants while 46 percent had knowledge of both. The results further revealed that the majority of the respondents (82 percent) that had knowledge of natural antioxidants were concerned about the use of synthetic antioxidants in meat and meat products due to their health consequences. The in vitro antioxidant and antibacterial analyses of Bidens pilosa and Moringa oleifera leaf extracts revealed that they contain rich bioactive compounds. Furthermore, the addition of leaf extracts from Moringa oleifera (ML, 0.05 and 0.1 percent w/w) and Biden pilosa (BP, 0.05 and 0.1 percent w/w) to ground raw beef as a natural antioxidant were found to improve the physicochemical, oxidative stability and microbiological qualities of meat compared to the control (meat without extract) and BHT treatment (0.02 percent w/w) during 6 days storage at 40 C. Cattle breed did not have much effect on colour parameters. However, the overall pH of ground beef treated with extracts showed lower values than control and BHT treated beef. Also, ground beef samples containing extracts exhibited (P < 0.05) better colour stability, especially higher redness (a* values), than the control. The formation of TBARS in beef samples treated with extracts was significantly (P < 0.05) lower than the control and BHT treatment. The antibacterial assay of the extracts revealed an appreciable broad spectrum activity against the tested bacteria and microbial counts in ground beef samples compared to control and BHT group. Ground beef treated with plant extracts exhibited lower microbial and lactic acid bacterial counts (P < 0.05) at day 0 and 3 than control samples. Moreover, it was observed that application of sous vides thermal method did not significantly affect the fatty acids and mineral loss in beef and liver across the treatments. However, the total concentration of MUFA was lower in raw liver (20.11±2.38 - 21.08±1.23 percent) than in beef (40.22±1.90 - 42.53±1.29 percent), while total PUFA content were higher in liver (30.73±2.60 - 31.11±1.19 percent) than in beef samples (10.13±3.36 - 11.02±2.74 percent) (p < 0.05). The results also revealed that liver samples from Bonsmara and non-descript cattle had a higher percentage of intramuscular fat content of 4.67 ± 0.53 percent and 4.44 ± 0.53 percent respectively, and fat free dry matter of 27.51 ± 1.05 percent and 25.73 ± 1.05 percent, respectively, than the beef samples (p < 0.05). The concentrations of Mg (52.80±0.22 - 53.70±0.02mg/100g) and Zn (8.90±0.15 - 19.60±0.15mg/100g) were higher in beef than liver samples. The level of Ca (17.00±0.17 - 17.50 ± 0.17mg/100g) in liver was higher than that of beef samples. It was concluded that most consumers preferred the use of natural antioxidants in meat products than synthetic antioxidants due to their health risk. The effectiveness of M. oleifera and B. pilosa leaf extracts on meat quality also revealed that these plants are promising candidates as natural preservatives and their application should be considered in the meat industry. Lastly, findings from this study showed that application of the sous vide technique could protect meat products from nutritional loss during thermal treatment.
- Full Text:
- Date Issued: 2015
- Authors: Falowo, Andrew Bamidele
- Date: 2015
- Subjects: Meat -- Preservation Antioxidants Meat -- Microbiology
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/2589 , vital:27906
- Description: The broad objective of this study was to determine the effects of natural antioxidants and thermal treatment on quality of meat from Bonsmara and non-descript cattle. A survey was conducted among 222 consumers in Alice (Fort Hare University community), Eastern Cape Province to determine the level of their awareness on application of antioxidants as preservatives in meat and meat products during storage. Representative samples of Muscularis longissimuss thoracis et lumborum and liver were collected from each carcass of Bonsmara (n=40) and non-descript (n=40) cattle reared on natural pasture to determine the effect of natural antioxidants and thermal treatment on their quality. The results from the survey revealed that 51.35 percent of the respondents had not heard about the use of antioxidant as preservatives in meat products. However, among the remaining respondents (48.65 percent) that were aware of antioxidant and its use as preservative, about 19 percent knew of natural antioxidants, 35 percent synthetic antioxidants while 46 percent had knowledge of both. The results further revealed that the majority of the respondents (82 percent) that had knowledge of natural antioxidants were concerned about the use of synthetic antioxidants in meat and meat products due to their health consequences. The in vitro antioxidant and antibacterial analyses of Bidens pilosa and Moringa oleifera leaf extracts revealed that they contain rich bioactive compounds. Furthermore, the addition of leaf extracts from Moringa oleifera (ML, 0.05 and 0.1 percent w/w) and Biden pilosa (BP, 0.05 and 0.1 percent w/w) to ground raw beef as a natural antioxidant were found to improve the physicochemical, oxidative stability and microbiological qualities of meat compared to the control (meat without extract) and BHT treatment (0.02 percent w/w) during 6 days storage at 40 C. Cattle breed did not have much effect on colour parameters. However, the overall pH of ground beef treated with extracts showed lower values than control and BHT treated beef. Also, ground beef samples containing extracts exhibited (P < 0.05) better colour stability, especially higher redness (a* values), than the control. The formation of TBARS in beef samples treated with extracts was significantly (P < 0.05) lower than the control and BHT treatment. The antibacterial assay of the extracts revealed an appreciable broad spectrum activity against the tested bacteria and microbial counts in ground beef samples compared to control and BHT group. Ground beef treated with plant extracts exhibited lower microbial and lactic acid bacterial counts (P < 0.05) at day 0 and 3 than control samples. Moreover, it was observed that application of sous vides thermal method did not significantly affect the fatty acids and mineral loss in beef and liver across the treatments. However, the total concentration of MUFA was lower in raw liver (20.11±2.38 - 21.08±1.23 percent) than in beef (40.22±1.90 - 42.53±1.29 percent), while total PUFA content were higher in liver (30.73±2.60 - 31.11±1.19 percent) than in beef samples (10.13±3.36 - 11.02±2.74 percent) (p < 0.05). The results also revealed that liver samples from Bonsmara and non-descript cattle had a higher percentage of intramuscular fat content of 4.67 ± 0.53 percent and 4.44 ± 0.53 percent respectively, and fat free dry matter of 27.51 ± 1.05 percent and 25.73 ± 1.05 percent, respectively, than the beef samples (p < 0.05). The concentrations of Mg (52.80±0.22 - 53.70±0.02mg/100g) and Zn (8.90±0.15 - 19.60±0.15mg/100g) were higher in beef than liver samples. The level of Ca (17.00±0.17 - 17.50 ± 0.17mg/100g) in liver was higher than that of beef samples. It was concluded that most consumers preferred the use of natural antioxidants in meat products than synthetic antioxidants due to their health risk. The effectiveness of M. oleifera and B. pilosa leaf extracts on meat quality also revealed that these plants are promising candidates as natural preservatives and their application should be considered in the meat industry. Lastly, findings from this study showed that application of the sous vide technique could protect meat products from nutritional loss during thermal treatment.
- Full Text:
- Date Issued: 2015
Termination of the contract of employment not constituting dismissal
- Sipuka, Sibongile, Supervisor details
- Authors: Sipuka, Sibongile , Supervisor details
- Date: 2015
- Subjects: Employees -- Dismissal of -- Law and legislation -- South Africa , Labor discipline -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/4811 , vital:20701
- Description: Section 23 of the Constitution provides that everyone has a right to fair labour practice. The constitutional right to fair labour practices includes the right not to be unfairly dismissed and is given effect to by section 185 of the LRA. The constitutional right not to be unfairly dismissed is given effect to by Chapter VIII of the Labour Relations Act 66 of 1995 (the LRA), which provides a remedy for an unfair dismissal. Schedule 8 of the LRA contains a “Code of Good Practice: Dismissal”, which the Commission for Conciliation, Mediation and Arbitration (the CCMA) and the Labour Courts must take into account when determining the fairness of a dismissal. The LRA expressly recognises three grounds for termination of the employment contract namely; misconduct on the part of the employee, incapacity due to an employee’s poor work performance, ill health or injury and termination due an employer’s operational requirements. In terms of the LRA, a dismissal must be procedurally and substantively fair. The requirements for procedural and substantive fairness are contained in Schedule 8 of the Code of Good Practice: Dismissal. The provisions of section 185 of the LRA apply to all employers and employees in both the public and the private sectors, with the exception of members of the National Defence Force, the National Intelligence Agency, the South African Secret Service and the South African National Academy of Intelligence. Section 213 of the LRA defines an “employee” as any person, excluding an independent contractor, who works for another person or for the State and who receives, or is entitled to receive, any remuneration and any person who in any manner assists in carrying out or conducting the business of an employer. Section 200A of the LRA sets out the presumption as to who is an employee. This is a guideline to assist in determining who is an employee. The Basic Conditions of Employment Act 75 of 1997 (the BCEA) sets minimum terms and conditions of employment including the notice of termination of employment. Under the common law an employment contract of employment can be terminated on either the expiration of the agreed period of employment or on completion of the specified task in cases of fixed-term contracts. Also, in terms of general contract principles an employment contract may be terminated by notice duly given by either party or by summary termination in the event of a material breach on the part of either party. The death of either party may terminate the employment contract. However, the death of an employer will not necessarily lead to the contract’s termination. An employment contract may also terminate by operation of law or effluxion of time namely retirement and coming into being of fixed-term contracts, by mutual agreement, employee resigning, due to insolvency of the employer and due to supervening impossibility of performance. In the circumstances indicated above, the termination of the contract of employment does not constitute dismissal. This means that the CCMA and the Labour Court do not have jurisdiction to determine should the employee allege that his or her dismissal was unfair. It has been argued that the instances where a termination of a contract of employment is terminated, but there is no dismissal should be scrutinised to avoid a situation where employees are deprived of protection afforded by the fundamental right not to be unfairly dismissed. There have been some instances where employment contracts contain clauses that provide for automatic termination of employment contracts. It has been held by the courts in various decisions that such clauses are against public policy and thus invalid. The Labour Court stated that a contractual device that renders the termination of a contract something other than a dismissal is exactly the exploitation the LRA prohibits. There are various court decisions providing guidelines of circumstances in which termination of employment may be regarded as not constituting dismissal. The main focus of the treatise is to discuss these instances and critically analyse the approach taken by forums like the CCMA, bargaining councils and the Labour Court in dealing with such instances.
- Full Text:
- Date Issued: 2015
- Authors: Sipuka, Sibongile , Supervisor details
- Date: 2015
- Subjects: Employees -- Dismissal of -- Law and legislation -- South Africa , Labor discipline -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/4811 , vital:20701
- Description: Section 23 of the Constitution provides that everyone has a right to fair labour practice. The constitutional right to fair labour practices includes the right not to be unfairly dismissed and is given effect to by section 185 of the LRA. The constitutional right not to be unfairly dismissed is given effect to by Chapter VIII of the Labour Relations Act 66 of 1995 (the LRA), which provides a remedy for an unfair dismissal. Schedule 8 of the LRA contains a “Code of Good Practice: Dismissal”, which the Commission for Conciliation, Mediation and Arbitration (the CCMA) and the Labour Courts must take into account when determining the fairness of a dismissal. The LRA expressly recognises three grounds for termination of the employment contract namely; misconduct on the part of the employee, incapacity due to an employee’s poor work performance, ill health or injury and termination due an employer’s operational requirements. In terms of the LRA, a dismissal must be procedurally and substantively fair. The requirements for procedural and substantive fairness are contained in Schedule 8 of the Code of Good Practice: Dismissal. The provisions of section 185 of the LRA apply to all employers and employees in both the public and the private sectors, with the exception of members of the National Defence Force, the National Intelligence Agency, the South African Secret Service and the South African National Academy of Intelligence. Section 213 of the LRA defines an “employee” as any person, excluding an independent contractor, who works for another person or for the State and who receives, or is entitled to receive, any remuneration and any person who in any manner assists in carrying out or conducting the business of an employer. Section 200A of the LRA sets out the presumption as to who is an employee. This is a guideline to assist in determining who is an employee. The Basic Conditions of Employment Act 75 of 1997 (the BCEA) sets minimum terms and conditions of employment including the notice of termination of employment. Under the common law an employment contract of employment can be terminated on either the expiration of the agreed period of employment or on completion of the specified task in cases of fixed-term contracts. Also, in terms of general contract principles an employment contract may be terminated by notice duly given by either party or by summary termination in the event of a material breach on the part of either party. The death of either party may terminate the employment contract. However, the death of an employer will not necessarily lead to the contract’s termination. An employment contract may also terminate by operation of law or effluxion of time namely retirement and coming into being of fixed-term contracts, by mutual agreement, employee resigning, due to insolvency of the employer and due to supervening impossibility of performance. In the circumstances indicated above, the termination of the contract of employment does not constitute dismissal. This means that the CCMA and the Labour Court do not have jurisdiction to determine should the employee allege that his or her dismissal was unfair. It has been argued that the instances where a termination of a contract of employment is terminated, but there is no dismissal should be scrutinised to avoid a situation where employees are deprived of protection afforded by the fundamental right not to be unfairly dismissed. There have been some instances where employment contracts contain clauses that provide for automatic termination of employment contracts. It has been held by the courts in various decisions that such clauses are against public policy and thus invalid. The Labour Court stated that a contractual device that renders the termination of a contract something other than a dismissal is exactly the exploitation the LRA prohibits. There are various court decisions providing guidelines of circumstances in which termination of employment may be regarded as not constituting dismissal. The main focus of the treatise is to discuss these instances and critically analyse the approach taken by forums like the CCMA, bargaining councils and the Labour Court in dealing with such instances.
- Full Text:
- Date Issued: 2015
Destination marketing: George
- Authors: Hunt, Norman William
- Date: 2015
- Subjects: Place marketing -- South Africa -- George , Branding (Marketing) -- South Africa -- George , George (South Africa)
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/5604 , vital:20914
- Description: A destination is often given its identity by its brand name, creating an image thereof in the customers’ minds which means that destinations exist not only physically but also mentally in the minds of people. Destination marketers play a role in the creation of the images of such destinations which is dependent on what the destination offers in its depth and breadth. Destination Marketing Organisations (DMOs) should be able to not only understand their destination’s offerings but also who they are targeting and how they should market the destination. DMOs have evolved to become more than mere destination information providers as considerable destination information is now created by fellow travellers which are shared via social networks. The most important change resulting from adopting the concept of social capital in the context of tourism would be that tourism scholars and DMOs become aware of the importance of resources obtained through an individual’s social interactions. Despite the fact that the town of George has a number of attributes it is able to market to potential visitors, it does however not automatically make it a desired destination. The main objective of this treatise is to determine what would give George its marketable destination identity which will be achieved by gaining an understanding of the local residents’ viewpoints of George and to measure them according to specific attributes which are carefully formulated in a survey questionnaire. This treatise aims to determine what George can do to create a destination identity and how such an identity can be applied in the successful marketing of George as a destination town. It is an exploratory quantitative study consisting of literature and case study components used to test proposed hypotheses. It aims to provide guidance to the destination marketers by way of researched literature on the topic of destination marketing as well as offer empirical data gathered from responses to a survey conducted with local residents of George which is focused on creating a destination identity through its business, cultural and sporting events. Based on the statistical analysis of the survey results it will be shown that a relationship exists between Destination Marketing and Events, Branding and Media,which plays a pivotal role in the successful marketing of such events and thereby the brand image of the destination. Based on the literature findings and the empirical data gained for this treatise it was shown that events can be used to create a new brand image for a town like George which already possesses a natural beauty and friendly people. Examples will be discussed where destinations throughout the world have managed to change their brand without changing their environment, from which they have gained a new destination brand. George can strategically convert what it already has to become the destination of choice in terms of intra-town activities and events which could not only enhance its own economy but also that of the surrounding towns. The geographic location of George and that of the Surrounding tourist attractive towns make it possible to design and implement intra-town events with relative ease. As found in researched literature, the residents should be made part of any destination marketing campaign. These events should be designed to incorporate the surrounding towns to capitalise on the concept of intra-town events where George becomes the main centre but uses outlying towns to lure tourist. Respondents to the survey indicate that they somewhat agree that George has sufficient infrastructure to host sports (μ = 3.77), cultural (μ = 3.61) and business events (μ = 3.88) and that hosting such events in George would create job opportunities. The responses for all three event types in this regard have a mean value above μ = 4. Respondents indicated that religious events are deemed the most important (mean value μ = 4.25) while also indicating that they agreed with a mean value of μ = 4.18 that entrance fees influence their decision to attend events. The empirical research conducted in George was designed to gain a representative viewpoint of its residents in terms of what they deem the identity of George to be, the main objective (ROM) of which was to determine what would give George its destination identity. The composite image of the residents of George was measured according to specific attributes which were carefully formulated in the survey.
- Full Text:
- Date Issued: 2015
- Authors: Hunt, Norman William
- Date: 2015
- Subjects: Place marketing -- South Africa -- George , Branding (Marketing) -- South Africa -- George , George (South Africa)
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/5604 , vital:20914
- Description: A destination is often given its identity by its brand name, creating an image thereof in the customers’ minds which means that destinations exist not only physically but also mentally in the minds of people. Destination marketers play a role in the creation of the images of such destinations which is dependent on what the destination offers in its depth and breadth. Destination Marketing Organisations (DMOs) should be able to not only understand their destination’s offerings but also who they are targeting and how they should market the destination. DMOs have evolved to become more than mere destination information providers as considerable destination information is now created by fellow travellers which are shared via social networks. The most important change resulting from adopting the concept of social capital in the context of tourism would be that tourism scholars and DMOs become aware of the importance of resources obtained through an individual’s social interactions. Despite the fact that the town of George has a number of attributes it is able to market to potential visitors, it does however not automatically make it a desired destination. The main objective of this treatise is to determine what would give George its marketable destination identity which will be achieved by gaining an understanding of the local residents’ viewpoints of George and to measure them according to specific attributes which are carefully formulated in a survey questionnaire. This treatise aims to determine what George can do to create a destination identity and how such an identity can be applied in the successful marketing of George as a destination town. It is an exploratory quantitative study consisting of literature and case study components used to test proposed hypotheses. It aims to provide guidance to the destination marketers by way of researched literature on the topic of destination marketing as well as offer empirical data gathered from responses to a survey conducted with local residents of George which is focused on creating a destination identity through its business, cultural and sporting events. Based on the statistical analysis of the survey results it will be shown that a relationship exists between Destination Marketing and Events, Branding and Media,which plays a pivotal role in the successful marketing of such events and thereby the brand image of the destination. Based on the literature findings and the empirical data gained for this treatise it was shown that events can be used to create a new brand image for a town like George which already possesses a natural beauty and friendly people. Examples will be discussed where destinations throughout the world have managed to change their brand without changing their environment, from which they have gained a new destination brand. George can strategically convert what it already has to become the destination of choice in terms of intra-town activities and events which could not only enhance its own economy but also that of the surrounding towns. The geographic location of George and that of the Surrounding tourist attractive towns make it possible to design and implement intra-town events with relative ease. As found in researched literature, the residents should be made part of any destination marketing campaign. These events should be designed to incorporate the surrounding towns to capitalise on the concept of intra-town events where George becomes the main centre but uses outlying towns to lure tourist. Respondents to the survey indicate that they somewhat agree that George has sufficient infrastructure to host sports (μ = 3.77), cultural (μ = 3.61) and business events (μ = 3.88) and that hosting such events in George would create job opportunities. The responses for all three event types in this regard have a mean value above μ = 4. Respondents indicated that religious events are deemed the most important (mean value μ = 4.25) while also indicating that they agreed with a mean value of μ = 4.18 that entrance fees influence their decision to attend events. The empirical research conducted in George was designed to gain a representative viewpoint of its residents in terms of what they deem the identity of George to be, the main objective (ROM) of which was to determine what would give George its destination identity. The composite image of the residents of George was measured according to specific attributes which were carefully formulated in the survey.
- Full Text:
- Date Issued: 2015
Whose voice is it anyway?
- Authors: Krueger, Anton
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/225695 , vital:49249 , xlink:href="https://doi.org/10.1080/1013929X.2015.1086195"
- Description: This essay surveys a number of different interpretations of the metaphor of “voice”. It begins by exploring the use of free writing exercises as a means of nurturing the emergence of physical (audible) voice in creative writing classes before assessing some of the ramifications and implications of the trope, both diachronically and synchronically. A key issue of this discussion is whether voice is regarded as individual or social.
- Full Text:
- Date Issued: 2015
- Authors: Krueger, Anton
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/225695 , vital:49249 , xlink:href="https://doi.org/10.1080/1013929X.2015.1086195"
- Description: This essay surveys a number of different interpretations of the metaphor of “voice”. It begins by exploring the use of free writing exercises as a means of nurturing the emergence of physical (audible) voice in creative writing classes before assessing some of the ramifications and implications of the trope, both diachronically and synchronically. A key issue of this discussion is whether voice is regarded as individual or social.
- Full Text:
- Date Issued: 2015
Anton and Vale van der Merwe: reinterpreting Afro-Oriental studio ceramics traditions in South Africa
- Authors: Steele, John
- Date: 2015
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/11260/968 , vital:30077
- Description: Growing awareness of ancient Chinese Song and Yuan ceramics, amongst other Oriental traditions, by people with western connections such as Bernard Leach and Michael Cardew, in conjunction with influences from Japanese associates such as Soyetsu Yanagi, Kenkichi Tomimoto, and Shoji Hamada, (De Waal 1997, Harrod 2012, Kikuchi 1977, Leach 1976) has had many consequences. It spread a consciousness idealizing self-sufficient pottery studios where potters were in touch with all aspects of creating utilityware, largely from local materials for local use. Out of this emerged an Anglo-Oriental studio ceramic philosophy of form and practice, associated mainly with hand-made high temperature reduction fired ceramics. These ideas spread to South Africa in the late 1950s, and by the early 1960s local studios were being established along these lines. This studio ceramics movement grew exponentially in South Africa, initiating a phase of Afro-Oriental ceramics that remains a powerful way of life and visual arts influence. This paper seeks to explore aspects of Afro- Oriental studio ceramics in South Africa, with particular reference to the Leach/Hamada/Cardew to Rabinowitz, and Van der Merwe lineage.
- Full Text:
- Date Issued: 2015
- Authors: Steele, John
- Date: 2015
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/11260/968 , vital:30077
- Description: Growing awareness of ancient Chinese Song and Yuan ceramics, amongst other Oriental traditions, by people with western connections such as Bernard Leach and Michael Cardew, in conjunction with influences from Japanese associates such as Soyetsu Yanagi, Kenkichi Tomimoto, and Shoji Hamada, (De Waal 1997, Harrod 2012, Kikuchi 1977, Leach 1976) has had many consequences. It spread a consciousness idealizing self-sufficient pottery studios where potters were in touch with all aspects of creating utilityware, largely from local materials for local use. Out of this emerged an Anglo-Oriental studio ceramic philosophy of form and practice, associated mainly with hand-made high temperature reduction fired ceramics. These ideas spread to South Africa in the late 1950s, and by the early 1960s local studios were being established along these lines. This studio ceramics movement grew exponentially in South Africa, initiating a phase of Afro-Oriental ceramics that remains a powerful way of life and visual arts influence. This paper seeks to explore aspects of Afro- Oriental studio ceramics in South Africa, with particular reference to the Leach/Hamada/Cardew to Rabinowitz, and Van der Merwe lineage.
- Full Text:
- Date Issued: 2015
An enabling environment for independent power producers in renewable electricity
- Authors: Palmer, Vivian Julian
- Date: 2015
- Subjects: Renewable energy sources -- South Africa , Independent power producers -- South Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/5868 , vital:21007
- Description: The increasing demand for electricity, the rising price of energy from conventional sources and limited electricity supply are a global concern. The demand on electricity generation could be alleviated by diversifying the sources from which electricity is obtained to achieve the goals of long-term electricity supply. Diversification implies finding alternative sources of energy such as renewable energy for the production of electricity. The South African electricity system is under increased pressure to provide and maintain electricity supply to its users. Electricity production may be regarded as a key contributor to the social and economic development of South Africa. The challenges are so serious that it will gradually become increasingly difficult to extract sufficient resources to satisfy increasing electricity demand. Growth in the electricity and industrial sectors signifies profound changes in the entire energy industry. The South African power utility Eskom, supplies 94% of South Africa’s electricity but the risk of inadequate supply because of increasing electricity demand is mitigated through the employment of Independent Power Producers (IPPs) which supply to the grid. However, although a limited number of IPP entrepreneurs sell electricity to the Eskom grid, there is no enabling entrepreneurial environment in which they can thrive. There is no positive movement to inaugurate policies and processes. This has created an opportunity for Smart Grid access as a viable option to accommodate IPP entrepreneurs into the grid. Investing in renewable electricity sources may provide feasible alternatives for the electricity industry, it would alleviate pressure on current supply whilst creating an enabling entrepreneurial environment for IPP entrepreneurs and increase entrepreneurial activity. This study investigates a proposed model for an enabling entrepreneurial environment for IPPs in the RE sector that can be utilised to ensure increased entrepreneurial activity within the electricity industry. Establishing such an enabling environment would contribute positively to the alleviation of the electricity demand crisis, result in lower carbon emissions and create a sustainable, more diverse electricity generation mix. This proposed IPP industry model for an enabling entrepreneurial environment is presented to address the problems experienced at the different levels of the electricity industry. The model can be utilised to increase entrepreneurial activity while eradicating major electricity challenges at different levels in the South African electricity industry. The results indicate that that RE, in the form of solar and wind, has the potential to expand the South African electricity industry significantly. Therefore, in order to reform the South African electricity industry, stakeholders need to embrace entrepreneurship as IPP entrepreneurs. This can be done effectively by the incorporation of IPP entrepreneurs into the electricity network. However, an enabling entrepreneurial environment in which to operate must be ensured. In this study, five important variables support the establishment of an enabling entrepreneurial environment for IPP entrepreneurs. These have been identified as; Smart Grids, Entrepreneurship, Renewable electricity environment, SA policy and Stakeholder theory. An important contribution has been made towards Stakeholder Theory. This has proven to be instrumental within the RE sector of the electricity industry in South Africa, as the mentioned role players have a reciprocal role to play. Three surveys were conducted at three levels of the electricity industry, namely, at organisational, legislative and entrepreneurial levels and included Eskom Management, National Energy Regulator (NERSA) Management and Approved and Non-approved IPPs. Both qualitative and quantitative research methods were utilised in this research study. The results indicate that SA Policy is instrumental in assisting stakeholders to facilitate the IPP process and feed the power from RE generation into the network. Most respondents were positive about the role of Smart Grids in future electricity generation and their contribution towards creating an enabling entrepreneurial environment for IPP entrepreneurs. Respondents indicated that by policy decisions, greater emphasis can be placed on the results of climate change and environmental challenges. Emphasis on the incorporation of stakeholders proved imperative to this group (IPPs). The results indicated that stakeholder management is a key factor contributing to the establishment of an enabling entrepreneurial environment. The major contribution of this study is a proposed entrepreneurial model that can improve future sustainability of the electricity supply.
- Full Text:
- Date Issued: 2015
- Authors: Palmer, Vivian Julian
- Date: 2015
- Subjects: Renewable energy sources -- South Africa , Independent power producers -- South Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/5868 , vital:21007
- Description: The increasing demand for electricity, the rising price of energy from conventional sources and limited electricity supply are a global concern. The demand on electricity generation could be alleviated by diversifying the sources from which electricity is obtained to achieve the goals of long-term electricity supply. Diversification implies finding alternative sources of energy such as renewable energy for the production of electricity. The South African electricity system is under increased pressure to provide and maintain electricity supply to its users. Electricity production may be regarded as a key contributor to the social and economic development of South Africa. The challenges are so serious that it will gradually become increasingly difficult to extract sufficient resources to satisfy increasing electricity demand. Growth in the electricity and industrial sectors signifies profound changes in the entire energy industry. The South African power utility Eskom, supplies 94% of South Africa’s electricity but the risk of inadequate supply because of increasing electricity demand is mitigated through the employment of Independent Power Producers (IPPs) which supply to the grid. However, although a limited number of IPP entrepreneurs sell electricity to the Eskom grid, there is no enabling entrepreneurial environment in which they can thrive. There is no positive movement to inaugurate policies and processes. This has created an opportunity for Smart Grid access as a viable option to accommodate IPP entrepreneurs into the grid. Investing in renewable electricity sources may provide feasible alternatives for the electricity industry, it would alleviate pressure on current supply whilst creating an enabling entrepreneurial environment for IPP entrepreneurs and increase entrepreneurial activity. This study investigates a proposed model for an enabling entrepreneurial environment for IPPs in the RE sector that can be utilised to ensure increased entrepreneurial activity within the electricity industry. Establishing such an enabling environment would contribute positively to the alleviation of the electricity demand crisis, result in lower carbon emissions and create a sustainable, more diverse electricity generation mix. This proposed IPP industry model for an enabling entrepreneurial environment is presented to address the problems experienced at the different levels of the electricity industry. The model can be utilised to increase entrepreneurial activity while eradicating major electricity challenges at different levels in the South African electricity industry. The results indicate that that RE, in the form of solar and wind, has the potential to expand the South African electricity industry significantly. Therefore, in order to reform the South African electricity industry, stakeholders need to embrace entrepreneurship as IPP entrepreneurs. This can be done effectively by the incorporation of IPP entrepreneurs into the electricity network. However, an enabling entrepreneurial environment in which to operate must be ensured. In this study, five important variables support the establishment of an enabling entrepreneurial environment for IPP entrepreneurs. These have been identified as; Smart Grids, Entrepreneurship, Renewable electricity environment, SA policy and Stakeholder theory. An important contribution has been made towards Stakeholder Theory. This has proven to be instrumental within the RE sector of the electricity industry in South Africa, as the mentioned role players have a reciprocal role to play. Three surveys were conducted at three levels of the electricity industry, namely, at organisational, legislative and entrepreneurial levels and included Eskom Management, National Energy Regulator (NERSA) Management and Approved and Non-approved IPPs. Both qualitative and quantitative research methods were utilised in this research study. The results indicate that SA Policy is instrumental in assisting stakeholders to facilitate the IPP process and feed the power from RE generation into the network. Most respondents were positive about the role of Smart Grids in future electricity generation and their contribution towards creating an enabling entrepreneurial environment for IPP entrepreneurs. Respondents indicated that by policy decisions, greater emphasis can be placed on the results of climate change and environmental challenges. Emphasis on the incorporation of stakeholders proved imperative to this group (IPPs). The results indicated that stakeholder management is a key factor contributing to the establishment of an enabling entrepreneurial environment. The major contribution of this study is a proposed entrepreneurial model that can improve future sustainability of the electricity supply.
- Full Text:
- Date Issued: 2015
Political communication: a case study of the Democratic Alliance and its use of digital media in the 2014 South African General Elections
- Authors: Chong, Sandra Pow
- Date: 2015
- Subjects: Communication -- Political aspects -- South Africa Mass media -- Political aspects -- South Africa Political campaigns -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/11416 , vital:26923
- Description: Political organisations are now using a two-way path of communication thanks to the development of technological platforms that work in-sync with the internet to allow this to happen. Information can now flow across new networks to allow exchanges from the many to the many. This study sets out to explore the use of social media by political organisations as a means of political communication. A case study was conducted which focussed on online communication used by the Democratic Alliance in the 2014 General Elections in South Africa. The social media strategies adopted by the Democratic Alliance was examined. Reference is made to the 2008 Obama Campaign. The study revealed that the DA primarily made use of two-way asymmetrical communication despite the party posting a lot of consistent information and content; however in response to many questions and comments posted on the social media fora by online users, the DA only selectively responded to a handful of these.
- Full Text:
- Date Issued: 2015
- Authors: Chong, Sandra Pow
- Date: 2015
- Subjects: Communication -- Political aspects -- South Africa Mass media -- Political aspects -- South Africa Political campaigns -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/11416 , vital:26923
- Description: Political organisations are now using a two-way path of communication thanks to the development of technological platforms that work in-sync with the internet to allow this to happen. Information can now flow across new networks to allow exchanges from the many to the many. This study sets out to explore the use of social media by political organisations as a means of political communication. A case study was conducted which focussed on online communication used by the Democratic Alliance in the 2014 General Elections in South Africa. The social media strategies adopted by the Democratic Alliance was examined. Reference is made to the 2008 Obama Campaign. The study revealed that the DA primarily made use of two-way asymmetrical communication despite the party posting a lot of consistent information and content; however in response to many questions and comments posted on the social media fora by online users, the DA only selectively responded to a handful of these.
- Full Text:
- Date Issued: 2015
Venerating death
- Authors: Jones, Ward E
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/275749 , vital:55076 , xlink:href="https://doi.org/10.1080/05568641.2015.1014540"
- Description: In this paper, I am concerned with elucidating and expanding our attitudes toward our own death. As it is, our common attitudes toward our death are the following: we fear our premature death, and we dread our inevitable death. These attitudes are rational, but I want to argue that our attitudes toward death should be more complicated than this. A condition upon our value, our preciousness, as creatures is that we are vulnerable, and our vulnerability is, at bottom, a vulnerability to death. A corollary of this is that we could not be loved, either by ourselves or by others, for one cannot love—be concerned for—a being invulnerable to death. As a consequence, death plays a deep and abiding role in our value systems. Our susceptibility to premature and inevitable death is a condition upon our being valuable creatures and, in turn, it is a condition upon our being loved. Given the high value that we place on being valuable creatures who deserve love, we should equally place a high value on the constitutive conditions for being precious and loved. If, as I suggest, one of these conditions is that we will die, we should see our deaths not simply as something to fear or dread, but as something of great importance in our lives. Our deaths should be treated with awe, respect, and even praise.
- Full Text:
- Date Issued: 2015
- Authors: Jones, Ward E
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/275749 , vital:55076 , xlink:href="https://doi.org/10.1080/05568641.2015.1014540"
- Description: In this paper, I am concerned with elucidating and expanding our attitudes toward our own death. As it is, our common attitudes toward our death are the following: we fear our premature death, and we dread our inevitable death. These attitudes are rational, but I want to argue that our attitudes toward death should be more complicated than this. A condition upon our value, our preciousness, as creatures is that we are vulnerable, and our vulnerability is, at bottom, a vulnerability to death. A corollary of this is that we could not be loved, either by ourselves or by others, for one cannot love—be concerned for—a being invulnerable to death. As a consequence, death plays a deep and abiding role in our value systems. Our susceptibility to premature and inevitable death is a condition upon our being valuable creatures and, in turn, it is a condition upon our being loved. Given the high value that we place on being valuable creatures who deserve love, we should equally place a high value on the constitutive conditions for being precious and loved. If, as I suggest, one of these conditions is that we will die, we should see our deaths not simply as something to fear or dread, but as something of great importance in our lives. Our deaths should be treated with awe, respect, and even praise.
- Full Text:
- Date Issued: 2015
A pastoral theological response to post-traumatic experiences of family members of murdered victims : a case study of Mbizana Local Municipality in the Eastern Cape
- Authors: Ncama, Nomonde Patience
- Date: 2015
- Subjects: Murder victims--South Africa Pastoral counseling Bereavement--Religious aspects--Christianity
- Language: English
- Type: Thesis , Masters , Theology
- Identifier: http://hdl.handle.net/10353/17428 , vital:40967
- Description: The researcher wish to shed light on the health of the victims’ family members, who had in common, the traumatic experience of having one or more of their family members brutally murdered by a serial killers, and that they numbered fourteen people, who were residents in Wards 23 and 24. Nine of the fourteen victims were females and five were males, young and old. Some victims worked at Mzamba Wild Coast Cassino Hotel, one of those workers originally came from Kwa Zulu Natal at Umzimkhulu local municipality. Serial killers either attacked the victims in their homes, whilst they were fast asleep, many of the atrocities were witnessed by their children, or they were attacked in an open field when they were dropped-off from their place of work at midnight. The serial killers, used tools like hammers, to knock victims on the heads, thereby rendering them unconscious; bush knives were then used for the removal of certain body parts. Most victims were residents of Ward 24 which is nearer Mzamba Wild Coast Cassino Hotel. Many of the victims’ bodies showed evidence of head injuries, mutilation of body parts or ‘genital mutilation’, it is alleged that private parts were used for muti purposes. There was evidence that females had been raped. Post trauma was an experience that left many in the villages of Mbizana marked by fear and anxiety. When a serial murder occurred it demanded the attention of all South Africans for several reasons, especially because it dramatically threatens and profoundly challenges our sense of safety, in particular our sense of personal safety. The serial killing as a phenomenon, challenges the larger society throughout the country, it is an emotive subject. The study is concern with prolonged soul suffering without healing, a pastoral counselling services was rendered to victims’ family members with recommendation of reconciliation and forgiveness as therapeutic measures. The study concludes by calling upon the Church as congregation to include to her programmes the topic of serial killing. The study makes recommendations to the Church to empower, make awareness, teach, and offer counselling to the congregation, that denominations must approach theological institutions for an introduction of modules that cover the concept of serial killing.
- Full Text:
- Date Issued: 2015
- Authors: Ncama, Nomonde Patience
- Date: 2015
- Subjects: Murder victims--South Africa Pastoral counseling Bereavement--Religious aspects--Christianity
- Language: English
- Type: Thesis , Masters , Theology
- Identifier: http://hdl.handle.net/10353/17428 , vital:40967
- Description: The researcher wish to shed light on the health of the victims’ family members, who had in common, the traumatic experience of having one or more of their family members brutally murdered by a serial killers, and that they numbered fourteen people, who were residents in Wards 23 and 24. Nine of the fourteen victims were females and five were males, young and old. Some victims worked at Mzamba Wild Coast Cassino Hotel, one of those workers originally came from Kwa Zulu Natal at Umzimkhulu local municipality. Serial killers either attacked the victims in their homes, whilst they were fast asleep, many of the atrocities were witnessed by their children, or they were attacked in an open field when they were dropped-off from their place of work at midnight. The serial killers, used tools like hammers, to knock victims on the heads, thereby rendering them unconscious; bush knives were then used for the removal of certain body parts. Most victims were residents of Ward 24 which is nearer Mzamba Wild Coast Cassino Hotel. Many of the victims’ bodies showed evidence of head injuries, mutilation of body parts or ‘genital mutilation’, it is alleged that private parts were used for muti purposes. There was evidence that females had been raped. Post trauma was an experience that left many in the villages of Mbizana marked by fear and anxiety. When a serial murder occurred it demanded the attention of all South Africans for several reasons, especially because it dramatically threatens and profoundly challenges our sense of safety, in particular our sense of personal safety. The serial killing as a phenomenon, challenges the larger society throughout the country, it is an emotive subject. The study is concern with prolonged soul suffering without healing, a pastoral counselling services was rendered to victims’ family members with recommendation of reconciliation and forgiveness as therapeutic measures. The study concludes by calling upon the Church as congregation to include to her programmes the topic of serial killing. The study makes recommendations to the Church to empower, make awareness, teach, and offer counselling to the congregation, that denominations must approach theological institutions for an introduction of modules that cover the concept of serial killing.
- Full Text:
- Date Issued: 2015
Effects of political instability in development in South Sudan
- Authors: Annan, David
- Date: 2015
- Subjects: Political stability -- Africa -- History , Economic development -- Political aspects , Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9184 , http://hdl.handle.net/10948/d1020190
- Description: The signing of the Comprehensive Peace Agreement (CPA) between the Republic of Sudan represented by the National Congress Party (NCP) and the SPLM (Sudan People’s Liberation Movement) which represented the people of the Southern part of Sudan in January 2005 ushered in a rare era of peace and hope for the rebuilding and construction of the war ravaged South Sudan. Coupled with the attainment of Independence for South Sudan through an internationally supervised referendum in January 2011, the objectives of years of struggle by the people of the formerly semi-autonomous region were completed. From 2005 until after the independence of South Sudan however, a period that initially was marked by huge euphoria and broad based anticipation of development boom, the support from both local and international actors for the struggle and the plight of the people of South Sudan is waning and at worst has now turned into despair and hopelessness. After attaining independence in 2011, the highest party organ, the Political Bureau decided to remove candidates who were popularly voted by their constituents and replaced them with their cronies, leading to mass exodus of cadres from the party. On top of that, the wide believe that the elections were rigged for SPLM candidates at the expense of the Independent candidates led to another wave of exodus and open rebellion by many veteran cadres of the movement. Today, these rebellions coupled with some complex problematic societal issues are major concern and a source of political instability and violence in some parts of the country. Secondly, the hasty process of the Disarmament, Demobilization, and Reintegration (DDR) campaign, which in some cases were forcefully done left some communities exposed and venerable to attacks by rival communities. This continue to exacerbate and ignite tribal hatred, tension and stereotypes between communities especially in the traditionally volatile parts of the country that are known for cattle rustling and tribal rivalry as a form of cultural practice. Unresolved post secession issues within the SPLM had resulted to political instability and violence thus having negative economic consequences for South Sudan and all the gains the country had made in the past few years vanished after December 15 2013 political upheaval. This thesis will examine the effects of these mentioned complex political instability and economic dilemma South Sudan is being confronted with in the face of the fact that it is still in the process of nation building having attained its Independence only in July 2011.
- Full Text:
- Date Issued: 2015
- Authors: Annan, David
- Date: 2015
- Subjects: Political stability -- Africa -- History , Economic development -- Political aspects , Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9184 , http://hdl.handle.net/10948/d1020190
- Description: The signing of the Comprehensive Peace Agreement (CPA) between the Republic of Sudan represented by the National Congress Party (NCP) and the SPLM (Sudan People’s Liberation Movement) which represented the people of the Southern part of Sudan in January 2005 ushered in a rare era of peace and hope for the rebuilding and construction of the war ravaged South Sudan. Coupled with the attainment of Independence for South Sudan through an internationally supervised referendum in January 2011, the objectives of years of struggle by the people of the formerly semi-autonomous region were completed. From 2005 until after the independence of South Sudan however, a period that initially was marked by huge euphoria and broad based anticipation of development boom, the support from both local and international actors for the struggle and the plight of the people of South Sudan is waning and at worst has now turned into despair and hopelessness. After attaining independence in 2011, the highest party organ, the Political Bureau decided to remove candidates who were popularly voted by their constituents and replaced them with their cronies, leading to mass exodus of cadres from the party. On top of that, the wide believe that the elections were rigged for SPLM candidates at the expense of the Independent candidates led to another wave of exodus and open rebellion by many veteran cadres of the movement. Today, these rebellions coupled with some complex problematic societal issues are major concern and a source of political instability and violence in some parts of the country. Secondly, the hasty process of the Disarmament, Demobilization, and Reintegration (DDR) campaign, which in some cases were forcefully done left some communities exposed and venerable to attacks by rival communities. This continue to exacerbate and ignite tribal hatred, tension and stereotypes between communities especially in the traditionally volatile parts of the country that are known for cattle rustling and tribal rivalry as a form of cultural practice. Unresolved post secession issues within the SPLM had resulted to political instability and violence thus having negative economic consequences for South Sudan and all the gains the country had made in the past few years vanished after December 15 2013 political upheaval. This thesis will examine the effects of these mentioned complex political instability and economic dilemma South Sudan is being confronted with in the face of the fact that it is still in the process of nation building having attained its Independence only in July 2011.
- Full Text:
- Date Issued: 2015
Incipient genetic isolation of a temperate migratory coastal sciaenid fish (Argyrosomus inodorus) within the Benguela Cold Current system
- Henriques, Romina, Potts, Warren M, Sauer, Warwick H H, Shaw, Paul W
- Authors: Henriques, Romina , Potts, Warren M , Sauer, Warwick H H , Shaw, Paul W
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124710 , vital:35652 , https://doi.10.1080/17451000.2014.952309
- Description: The Benguela Cold Current system, located in the south-eastern Atlantic, features cold sea surface temperatures, bounded to the north and south by tropical currents (the Angola and Agulhas Currents, respectively) and a perennial upwelling cell off central Namibia that divides the region into two sub-systems with different characteristics (Shannon 1985; Hutchings et al. 2009). The colder sea surface temperatures of the Benguela Current have been considered an important biogeographic barrier, isolating tropical and warm-temperate fauna of the Atlantic and Indo-Pacific Oceans (Avise 2000; Floeter et al. 2008). However, recent studies revealed that other oceanographic features, such as the perennial upwelling cell, may also play an important role in shaping the population structure of warm temperate fish populations within the Benguela system, as complete disruption of gene flow was documented both in Lichia amia (Linnaeus, 1758) and Atractoscion aequidens (Cuvier, 1830) (Henriques et al. 2012, 2014). Little is known, however, regarding the influence of the Benguela system on genetic population connectivity of cold-water-tolerant species.
- Full Text:
- Date Issued: 2015
- Authors: Henriques, Romina , Potts, Warren M , Sauer, Warwick H H , Shaw, Paul W
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124710 , vital:35652 , https://doi.10.1080/17451000.2014.952309
- Description: The Benguela Cold Current system, located in the south-eastern Atlantic, features cold sea surface temperatures, bounded to the north and south by tropical currents (the Angola and Agulhas Currents, respectively) and a perennial upwelling cell off central Namibia that divides the region into two sub-systems with different characteristics (Shannon 1985; Hutchings et al. 2009). The colder sea surface temperatures of the Benguela Current have been considered an important biogeographic barrier, isolating tropical and warm-temperate fauna of the Atlantic and Indo-Pacific Oceans (Avise 2000; Floeter et al. 2008). However, recent studies revealed that other oceanographic features, such as the perennial upwelling cell, may also play an important role in shaping the population structure of warm temperate fish populations within the Benguela system, as complete disruption of gene flow was documented both in Lichia amia (Linnaeus, 1758) and Atractoscion aequidens (Cuvier, 1830) (Henriques et al. 2012, 2014). Little is known, however, regarding the influence of the Benguela system on genetic population connectivity of cold-water-tolerant species.
- Full Text:
- Date Issued: 2015
The 1990 Northern Areas "Uprising" in Port Elizabeth: A south African Story of Communities Resisting Oppression
- Date: 2015
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10948/41219 , vital:36417 , Bulk File 7
- Description: The Northern Areas History and Heritage Project consists of a variety workshops and materials examining the history of this part of Port Elizabeth to which people of colour had been removed in the 1970s. The materials include a book and DVD on the Northern Areas Uprising; six booklets entitled ‘Feasibility Study: Imagining a Cultural/ Healing Centre for the Northern Areas of Nelson Mandela Bay’ covering topics such as the Northern Areas Uprising, healing through memorialisation, architecture, non-profit organisations, archives and databases; 35 DVDs consisting of interviews with individuals, communities and focus groups, as well as a Winter School Project on Apartheid and the Group Areas Act. Also included are two maps relating to the area’s history.
- Full Text: false
- Date Issued: 2015
- Date: 2015
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10948/41219 , vital:36417 , Bulk File 7
- Description: The Northern Areas History and Heritage Project consists of a variety workshops and materials examining the history of this part of Port Elizabeth to which people of colour had been removed in the 1970s. The materials include a book and DVD on the Northern Areas Uprising; six booklets entitled ‘Feasibility Study: Imagining a Cultural/ Healing Centre for the Northern Areas of Nelson Mandela Bay’ covering topics such as the Northern Areas Uprising, healing through memorialisation, architecture, non-profit organisations, archives and databases; 35 DVDs consisting of interviews with individuals, communities and focus groups, as well as a Winter School Project on Apartheid and the Group Areas Act. Also included are two maps relating to the area’s history.
- Full Text: false
- Date Issued: 2015
The role of craft in poverty alleviation in semi-rural communities
- Authors: Pillay, Tania
- Date: 2015
- Subjects: Handicraft -- Vocational guidance -- South Africa -- Eastern Cape , Community arts projects -- South Africa -- Eastern Cape , Economic assistance, Domestic -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/2981 , vital:20382
- Description: This treatise explores the role of craft and craft training as a tool within poverty it looks to question the sustainability of this approach. The research was conducted amongst three community school sites. These were structured to better the relationships between schools and community members, in particular school parents. As the data had been collected through open questionnaires, after the first phase of implementation, it found that each site was trained in entrepreneurship and a craft skill. These were exercised through a selling opportunity within the Sundays River Valley. Assessments of the project looked to question and consider not only the implementation and framework of the project, but the expectations of both the participants and the facilitators. The data collected was reviewed in regards to the SRV Project’s goals and successes, as well as the universal measurements of success viewed within craft based projects and programmes with a poverty reduction focus. Findings showed that the project, though successful in meeting the basic goals, faced challenges in regards to funding, time constraints, participation consistency and challenges in market and product understanding. Recommendations were made in accordance with indicators highlighted in successful and sustainable models of craft based poverty alleviation projects.
- Full Text:
- Date Issued: 2015
- Authors: Pillay, Tania
- Date: 2015
- Subjects: Handicraft -- Vocational guidance -- South Africa -- Eastern Cape , Community arts projects -- South Africa -- Eastern Cape , Economic assistance, Domestic -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/2981 , vital:20382
- Description: This treatise explores the role of craft and craft training as a tool within poverty it looks to question the sustainability of this approach. The research was conducted amongst three community school sites. These were structured to better the relationships between schools and community members, in particular school parents. As the data had been collected through open questionnaires, after the first phase of implementation, it found that each site was trained in entrepreneurship and a craft skill. These were exercised through a selling opportunity within the Sundays River Valley. Assessments of the project looked to question and consider not only the implementation and framework of the project, but the expectations of both the participants and the facilitators. The data collected was reviewed in regards to the SRV Project’s goals and successes, as well as the universal measurements of success viewed within craft based projects and programmes with a poverty reduction focus. Findings showed that the project, though successful in meeting the basic goals, faced challenges in regards to funding, time constraints, participation consistency and challenges in market and product understanding. Recommendations were made in accordance with indicators highlighted in successful and sustainable models of craft based poverty alleviation projects.
- Full Text:
- Date Issued: 2015
Present state of macrophytes and responses to management scenarios at the St. Lucia and Mfolozi estuaries
- Authors: Rautenbach, Kelly
- Date: 2015
- Subjects: Aquatic plants -- South Africa , Estuaries -- South Africa , Marine plants -- Ecology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3195 , vital:20410
- Description: The St. Lucia Estuary, the largest estuary in South Africa, has been subject to many natural (a decade long drought) and anthropogenic impacts. A particular mouth manipulation activity, the artificial separation of the Mfolozi River and the St Lucia Estuary in 1952, was done to stop the perceived “silting up” of the estuary, but resulted in a decrease in freshwater supply. The changes in inflows (both fresh and marine) are controlled by management decisions and affect other system parameters such as salinity, water level and turbidity, which influence the distribution of biota. Therefore knowledge on the physico-chemical environment and eco-physiological tolerances of macrophytes will lead to informed future management decisions. The first of the three objectives carried out for this study determined the present state and distribution of the macrophytes of the St. Lucia and Mfolozi estuaries. The macrophyte habitats mapped in 2008 and 2013 were the submerged macrophytes, reeds and sedges, mangroves, grass and shrubs, salt marsh (succulent) and swamp forest. Results indicated that low salinity in the lakes and high water level in 2013 caused die-back or expansion of particular habitats. Submerged macrophytes, in particular Stuckenia pectinata, grows well in water with salinity <15 ppt, therefore this habitat increased by 412 ha (96%) in cover since 2008. Salt marsh decreased by 553 ha (57%) due to inundation. Since 2008 the reeds and sedges increased by 390 ha (in North Lake and the Narrows) due to the salinity decrease. In the Narrows the mangroves decreased by 28 ha (9%) in area cover. This was due to the drought that persisted for so many years, which caused low water levels and non-tidal conditions. The second objective was to determine the present state / health of the mangroves at four sites along the Narrows by assessing sediment condition and population structure of the trees. These results were compared to those obtained in 2010. The total density of Avicennia marina increased since 2010, however this was due to the large increase in seedlings at Site 1, the back channel site. The highest sediment salinity (26 ppt) and porewater salinity (29 ppt) was recorded for this site and these results show that this back channel site was strongly influenced by the open Mfolozi Estuary (increase in marine waters) and tidal conditions at the time of sampling in 2013. The total density of Bruguiera gymnorrhiza decreased, but an increase in adults was recorded at Site 2, the freshwater site. The soil collected from the Bruguiera quadrats was fresher and drier than that of the Avicennia quadrats of Site 2. Lack of seedlings (of both species) was due to the dense stands of Acrostichum aureum (mangrove fern) and Phragmites australis (common reed) and a thick, impenetrable mat of Avicennia pneumatophores. At Sites 3 and 4, the drier sites (where sediment moisture contents were the lowest for all sites at 43 and 42% respectively), seedling and sapling density was low, but adults increased in density since 2010. Recruitment and survival were impacted by the harsh environmental conditions that prevailed prior to 2013 (low water level and non-tidal influence), but adults survived. The results of the test that determined the percentage of aerenchyma of the pneumatophores indicated that waterlogging stress did not affect the aerenchyma of the pneumatophores. However the period of inundation was probably not significant enough to have affected the production of aerenchyma. The third objective formed part of an ongoing study by the Global Environmental Facility (GEF) on the feasibility of linking the Mfolozi River back to the St Lucia Estuary and the responses of these systems to different management scenarios: 1) the “do nothing” scenario; 2) maintain separate Mfolozi and St Lucia mouths representing an open mouth condition; and 3) actively facilitate a single mouth (therefore linking the Mfolozi and St Lucia mouths). Data gathered on the eco-physiological tolerances of the dominant macrophyte species was used to predict the response of the different habitats to these various management scenarios and the results indicated that the best management scenario would be to actively facilitate a single mouth (Scenario 3) as the estuary habitats would increase significantly because of preferred tidal and saline conditions, as this would represent more natural conditions. The results of the study will provide input to recommendations for future “adaptive management” strategies for the Global Environmental Facility (GEF) Project.
- Full Text:
- Date Issued: 2015
- Authors: Rautenbach, Kelly
- Date: 2015
- Subjects: Aquatic plants -- South Africa , Estuaries -- South Africa , Marine plants -- Ecology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3195 , vital:20410
- Description: The St. Lucia Estuary, the largest estuary in South Africa, has been subject to many natural (a decade long drought) and anthropogenic impacts. A particular mouth manipulation activity, the artificial separation of the Mfolozi River and the St Lucia Estuary in 1952, was done to stop the perceived “silting up” of the estuary, but resulted in a decrease in freshwater supply. The changes in inflows (both fresh and marine) are controlled by management decisions and affect other system parameters such as salinity, water level and turbidity, which influence the distribution of biota. Therefore knowledge on the physico-chemical environment and eco-physiological tolerances of macrophytes will lead to informed future management decisions. The first of the three objectives carried out for this study determined the present state and distribution of the macrophytes of the St. Lucia and Mfolozi estuaries. The macrophyte habitats mapped in 2008 and 2013 were the submerged macrophytes, reeds and sedges, mangroves, grass and shrubs, salt marsh (succulent) and swamp forest. Results indicated that low salinity in the lakes and high water level in 2013 caused die-back or expansion of particular habitats. Submerged macrophytes, in particular Stuckenia pectinata, grows well in water with salinity <15 ppt, therefore this habitat increased by 412 ha (96%) in cover since 2008. Salt marsh decreased by 553 ha (57%) due to inundation. Since 2008 the reeds and sedges increased by 390 ha (in North Lake and the Narrows) due to the salinity decrease. In the Narrows the mangroves decreased by 28 ha (9%) in area cover. This was due to the drought that persisted for so many years, which caused low water levels and non-tidal conditions. The second objective was to determine the present state / health of the mangroves at four sites along the Narrows by assessing sediment condition and population structure of the trees. These results were compared to those obtained in 2010. The total density of Avicennia marina increased since 2010, however this was due to the large increase in seedlings at Site 1, the back channel site. The highest sediment salinity (26 ppt) and porewater salinity (29 ppt) was recorded for this site and these results show that this back channel site was strongly influenced by the open Mfolozi Estuary (increase in marine waters) and tidal conditions at the time of sampling in 2013. The total density of Bruguiera gymnorrhiza decreased, but an increase in adults was recorded at Site 2, the freshwater site. The soil collected from the Bruguiera quadrats was fresher and drier than that of the Avicennia quadrats of Site 2. Lack of seedlings (of both species) was due to the dense stands of Acrostichum aureum (mangrove fern) and Phragmites australis (common reed) and a thick, impenetrable mat of Avicennia pneumatophores. At Sites 3 and 4, the drier sites (where sediment moisture contents were the lowest for all sites at 43 and 42% respectively), seedling and sapling density was low, but adults increased in density since 2010. Recruitment and survival were impacted by the harsh environmental conditions that prevailed prior to 2013 (low water level and non-tidal influence), but adults survived. The results of the test that determined the percentage of aerenchyma of the pneumatophores indicated that waterlogging stress did not affect the aerenchyma of the pneumatophores. However the period of inundation was probably not significant enough to have affected the production of aerenchyma. The third objective formed part of an ongoing study by the Global Environmental Facility (GEF) on the feasibility of linking the Mfolozi River back to the St Lucia Estuary and the responses of these systems to different management scenarios: 1) the “do nothing” scenario; 2) maintain separate Mfolozi and St Lucia mouths representing an open mouth condition; and 3) actively facilitate a single mouth (therefore linking the Mfolozi and St Lucia mouths). Data gathered on the eco-physiological tolerances of the dominant macrophyte species was used to predict the response of the different habitats to these various management scenarios and the results indicated that the best management scenario would be to actively facilitate a single mouth (Scenario 3) as the estuary habitats would increase significantly because of preferred tidal and saline conditions, as this would represent more natural conditions. The results of the study will provide input to recommendations for future “adaptive management” strategies for the Global Environmental Facility (GEF) Project.
- Full Text:
- Date Issued: 2015
The role of the enhanced people's housing process in delivery of sustainable human settlements
- Authors: Diko, Nomvuyo
- Date: 2015
- Subjects: Housing policy -- South Africa , Public housing -- South Africa , Housing development -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/3879 , vital:20472
- Description: One of the principles of Reconstruction and Development Programme is that development projects should be people driven. One of the programmes through which such people driven development is meant to be realized is the Enhanced Peoples Housing Process. This research seeks to identify the limitations in the implementation of the Enhanced People’s Housing Policy, to ascertain the involvement of beneficiary communities in the process, and to assess improvement in the quality of life of beneficiaries who have acquired houses. It is argued that these limitations may be attributed to the interpretation and implementation of the Policy Guidelines for the implementation of PHP. The researcher is of the view that development programmes should be participatory and that this will promote empowerment of communities as opposed to the creation of dependency. The researcher has selected two case studies which show that the involvement of communities in planning and decision making does meet the needs and demands of the community for improvement in an efficient and effective way.
- Full Text:
- Date Issued: 2015
- Authors: Diko, Nomvuyo
- Date: 2015
- Subjects: Housing policy -- South Africa , Public housing -- South Africa , Housing development -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/3879 , vital:20472
- Description: One of the principles of Reconstruction and Development Programme is that development projects should be people driven. One of the programmes through which such people driven development is meant to be realized is the Enhanced Peoples Housing Process. This research seeks to identify the limitations in the implementation of the Enhanced People’s Housing Policy, to ascertain the involvement of beneficiary communities in the process, and to assess improvement in the quality of life of beneficiaries who have acquired houses. It is argued that these limitations may be attributed to the interpretation and implementation of the Policy Guidelines for the implementation of PHP. The researcher is of the view that development programmes should be participatory and that this will promote empowerment of communities as opposed to the creation of dependency. The researcher has selected two case studies which show that the involvement of communities in planning and decision making does meet the needs and demands of the community for improvement in an efficient and effective way.
- Full Text:
- Date Issued: 2015
The effect of occupational health and safety programmes in the growth of small businesses in Gauteng province, South Africa
- Authors: Myeni, Sibongiseni Selby
- Date: 2015
- Subjects: Small business -- South Africa -- Gauteng -- Growth , Industrial safety -- South Africa -- Gauteng
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8846 , vital:26435
- Description: Introduction: Managers in small businesses are faced with a dilemma of meeting the requirements of health and safety legislation and trying to grow their businesses. It is important that they understand the business value of occupational health and safety programs. For them to allocate resources to occupational health and safety programs they need to understand if there are any economic benefits attached to such programs. Thus this study was designed to investigate the benefits of occupational health services on economic performance and growth of small businesses in Gauteng, South Africa. Method: This was a descriptive quantitative study. A self administered structured questionnaire was developed and distributed to 200 small businesses in Gauteng Province, South Africa. Thirty completed questionnaires were received back, representing a response rate of 15%. Data was analysed by the NMMU Unit for Statistical Consultation, using STATISTICA. Results: Economic performance moderately correlated with the presence of occupational health and safety professionals. It moderately correlated with the categories of occupational health and safety professionals in a small business. The level of knowledge, awareness, attitude and perception on occupational health and safety was rated high. Eighty three percent (83%) of the respondents had a clear understanding of their responsibility in terms of the health and safety function at work. The level of employee engagement was rated high with seventy six percent (76%) of respondents reporting that they get recognition for their work, and eighty six percent (86%) indicated that they were happy with the relationship they had with their boss. There was a difference between managers and employees in terms of how they view economic performance and growth of their companies. Conclusion: The presence of occupational health and safety professionals as well as different categories of occupational health and safety professionals are factors of importance in the economic performance and growth of small businesses in Gauteng, Republic of South Africa. The weak correlation between economic performance and growth of small businesses requires a further study with a bigger sample size.
- Full Text:
- Date Issued: 2015
- Authors: Myeni, Sibongiseni Selby
- Date: 2015
- Subjects: Small business -- South Africa -- Gauteng -- Growth , Industrial safety -- South Africa -- Gauteng
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8846 , vital:26435
- Description: Introduction: Managers in small businesses are faced with a dilemma of meeting the requirements of health and safety legislation and trying to grow their businesses. It is important that they understand the business value of occupational health and safety programs. For them to allocate resources to occupational health and safety programs they need to understand if there are any economic benefits attached to such programs. Thus this study was designed to investigate the benefits of occupational health services on economic performance and growth of small businesses in Gauteng, South Africa. Method: This was a descriptive quantitative study. A self administered structured questionnaire was developed and distributed to 200 small businesses in Gauteng Province, South Africa. Thirty completed questionnaires were received back, representing a response rate of 15%. Data was analysed by the NMMU Unit for Statistical Consultation, using STATISTICA. Results: Economic performance moderately correlated with the presence of occupational health and safety professionals. It moderately correlated with the categories of occupational health and safety professionals in a small business. The level of knowledge, awareness, attitude and perception on occupational health and safety was rated high. Eighty three percent (83%) of the respondents had a clear understanding of their responsibility in terms of the health and safety function at work. The level of employee engagement was rated high with seventy six percent (76%) of respondents reporting that they get recognition for their work, and eighty six percent (86%) indicated that they were happy with the relationship they had with their boss. There was a difference between managers and employees in terms of how they view economic performance and growth of their companies. Conclusion: The presence of occupational health and safety professionals as well as different categories of occupational health and safety professionals are factors of importance in the economic performance and growth of small businesses in Gauteng, Republic of South Africa. The weak correlation between economic performance and growth of small businesses requires a further study with a bigger sample size.
- Full Text:
- Date Issued: 2015
Sediment connectivity in the upper Thina Catchment, Eastern Cape, South Africa
- Van der Waal, Benjamin Cornelis Wentsel
- Authors: Van der Waal, Benjamin Cornelis Wentsel
- Date: 2015
- Subjects: Soil erosion -- South Africa -- Eastern Cape , Sedimentation and deposition -- South Africa -- Eastern Cape , Watersheds -- South Africa -- Eastern Cape , Arroyos -- South Africa -- Eastern Cape , Sediment transport -- South Africa -- Eastern Cape , Soil conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4892 , http://hdl.handle.net/10962/d1019754
- Description: [Portion of abstract]: Sediment dynamics are influenced by transformed landscape connectivity in catchments worldwide. The upper Thina catchment, an important high rainfall resource in the northern Eastern Cape, South Africa, is an example of where ongoing subsistence farming on communal land has led to overgrazing and trampling that has initiated large erosive features (e.g. gullies) and river incision. The formation of gullies led to increased hillslope-channel connectivity and the resultant river incision decreased the channel-valley fill connectivity. These two changes in connectivity led to increased sediment export from the catchment that has various down-stream ecological and socio-economic impacts. This study investigates how the change in hillslope-channel and channel-valley fill connectivity has altered the sediment dynamics in the Vuvu catchment, a headwater tributary of the Thina River. A combination of methods were used to assess the changes in hillslope-channel and channel-valley fill connectivity. High resolution aerial images were used to map source features, such as fields, gullies, sheet erosion, landslides, roads and livestock tracks. Topographic and geological characteristics of the source features were extracted using a Geographic Information System. Furthermore, hillslope-channel pathways, such as the natural drainage network, continuous gullies, discontinuous gullies, roads and livestock tracks were mapped and analysed in terms of topographic and geological characteristics. Historic aerial images were assessed to calculate the date the larger gullies began forming. Recent aerial photos and cross sectional surveys of the valley fill were combined to map the various sediment sinks. Particle size and organic content were analysed for flood bench cores and terrace samples. The chronology of the flood benches was determined using unsupported Pb-210 and Cs-137 dating, and determined for the terraces using Optically Stimulated Luminescence dating. Quantitative and qualitative sediment tracing approaches, using mineral magnetic properties, were used to trace the origin of suspended sediment (collected during flood events), sediment stored in the flood benches and sediment stored in the terraces. Hydrological monitoring was used to assess the potential to store sediment on flood benches along the valley fill through flood bench inundation frequency. Hydrological and hydraulic modelling extended the measured inundation frequencies to a 73 year period and other cross sections along the valley fill. Furthermore, a future scenario of an increased vegetation cover and reduced hillslope-channel connectivity was assessed in terms of channel-valley fill inundation frequency.
- Full Text:
- Date Issued: 2015
- Authors: Van der Waal, Benjamin Cornelis Wentsel
- Date: 2015
- Subjects: Soil erosion -- South Africa -- Eastern Cape , Sedimentation and deposition -- South Africa -- Eastern Cape , Watersheds -- South Africa -- Eastern Cape , Arroyos -- South Africa -- Eastern Cape , Sediment transport -- South Africa -- Eastern Cape , Soil conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4892 , http://hdl.handle.net/10962/d1019754
- Description: [Portion of abstract]: Sediment dynamics are influenced by transformed landscape connectivity in catchments worldwide. The upper Thina catchment, an important high rainfall resource in the northern Eastern Cape, South Africa, is an example of where ongoing subsistence farming on communal land has led to overgrazing and trampling that has initiated large erosive features (e.g. gullies) and river incision. The formation of gullies led to increased hillslope-channel connectivity and the resultant river incision decreased the channel-valley fill connectivity. These two changes in connectivity led to increased sediment export from the catchment that has various down-stream ecological and socio-economic impacts. This study investigates how the change in hillslope-channel and channel-valley fill connectivity has altered the sediment dynamics in the Vuvu catchment, a headwater tributary of the Thina River. A combination of methods were used to assess the changes in hillslope-channel and channel-valley fill connectivity. High resolution aerial images were used to map source features, such as fields, gullies, sheet erosion, landslides, roads and livestock tracks. Topographic and geological characteristics of the source features were extracted using a Geographic Information System. Furthermore, hillslope-channel pathways, such as the natural drainage network, continuous gullies, discontinuous gullies, roads and livestock tracks were mapped and analysed in terms of topographic and geological characteristics. Historic aerial images were assessed to calculate the date the larger gullies began forming. Recent aerial photos and cross sectional surveys of the valley fill were combined to map the various sediment sinks. Particle size and organic content were analysed for flood bench cores and terrace samples. The chronology of the flood benches was determined using unsupported Pb-210 and Cs-137 dating, and determined for the terraces using Optically Stimulated Luminescence dating. Quantitative and qualitative sediment tracing approaches, using mineral magnetic properties, were used to trace the origin of suspended sediment (collected during flood events), sediment stored in the flood benches and sediment stored in the terraces. Hydrological monitoring was used to assess the potential to store sediment on flood benches along the valley fill through flood bench inundation frequency. Hydrological and hydraulic modelling extended the measured inundation frequencies to a 73 year period and other cross sections along the valley fill. Furthermore, a future scenario of an increased vegetation cover and reduced hillslope-channel connectivity was assessed in terms of channel-valley fill inundation frequency.
- Full Text:
- Date Issued: 2015
Exploring lecturer experiences of the use of ICT in blended learning : a case study at a South African university
- Authors: Ntlabathi, Siyanda
- Date: 2015
- Subjects: Blended learning -- South Africa , Information technology -- South Africa , Education, Higher -- Technological innovations , Computer-assisted instruction -- South Africa , Internet in education -- South Africa , Educational technology -- South Africa , Critical realism
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2044 , http://hdl.handle.net/10962/d1017355
- Description: ICTs have had a tremendous impact on our educational environment. There have been a huge number of developments and support in implementation of ICT in Higher Education teaching and learning, also referred to as e-learning. Similarly there appears to be quite a number of research conducted on the use of ICTs in blended learning settings worldwide and as well as in South Africa. Very little research however, has focussed on the experiences of lecturers with e-learning, specifically as it relates to Learning Management Systems (LMS). In trying to meet the requirements of its academic programmes and be in line with new developments worldwide, the University which is the focus of this study pilot projected the use of an LMS in a blended learning approach which integrates face-to-face classes with Blackboard, an ICT-based system or tool. Following the implementation of the pilot project, this study explores the experiences of lecturers in their blended learning environments at this university in the Eastern Cape province of South Africa. The research design was that of an interpretative paradigm within a qualitative research approach in a case study methodology. Purposive sampling of six lecturers from departments within faculties across two campuses was done. The data was gathered through interviews, a follow-up questionnaire and document analysis was employed. Using Critical and Social Realism as meta-theories the study employed aspects of Activity Theory as substantive theory to understand particular experiences of blended learning environments and identify conditions which enable and constrain engagement in these environments so as to explore potential lessons to inform the kind of educational support which could be offered to facilitate uptake of the LMS.
- Full Text:
- Date Issued: 2015
- Authors: Ntlabathi, Siyanda
- Date: 2015
- Subjects: Blended learning -- South Africa , Information technology -- South Africa , Education, Higher -- Technological innovations , Computer-assisted instruction -- South Africa , Internet in education -- South Africa , Educational technology -- South Africa , Critical realism
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2044 , http://hdl.handle.net/10962/d1017355
- Description: ICTs have had a tremendous impact on our educational environment. There have been a huge number of developments and support in implementation of ICT in Higher Education teaching and learning, also referred to as e-learning. Similarly there appears to be quite a number of research conducted on the use of ICTs in blended learning settings worldwide and as well as in South Africa. Very little research however, has focussed on the experiences of lecturers with e-learning, specifically as it relates to Learning Management Systems (LMS). In trying to meet the requirements of its academic programmes and be in line with new developments worldwide, the University which is the focus of this study pilot projected the use of an LMS in a blended learning approach which integrates face-to-face classes with Blackboard, an ICT-based system or tool. Following the implementation of the pilot project, this study explores the experiences of lecturers in their blended learning environments at this university in the Eastern Cape province of South Africa. The research design was that of an interpretative paradigm within a qualitative research approach in a case study methodology. Purposive sampling of six lecturers from departments within faculties across two campuses was done. The data was gathered through interviews, a follow-up questionnaire and document analysis was employed. Using Critical and Social Realism as meta-theories the study employed aspects of Activity Theory as substantive theory to understand particular experiences of blended learning environments and identify conditions which enable and constrain engagement in these environments so as to explore potential lessons to inform the kind of educational support which could be offered to facilitate uptake of the LMS.
- Full Text:
- Date Issued: 2015
A critical analysis of the role of coltan in the Eastern region of the Democratic Republic of Congo’s second war (1998-2003)
- Authors: Moleko, Teboho Banele
- Date: 2015
- Subjects: Congo (Democratic Republic) -- History -- 1997- , Natural resources -- Congo (Democratic Republic) , Tantalite -- Congo (Democratic Republic) , Natural resources -- Political aspects -- Congo (Democratic Republic) , Power (Social sciences) -- Congo (Democratic Republic) , Mines and mineral resources -- Congo (Democratic Republic)
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2889 , http://hdl.handle.net/10962/d1017864
- Description: The role of natural resources in African conflicts has been subject to extensive scholarly analysis. However, much of this analysis has taken a narrow economic reductionist bias. As such, it is imperative that the dominant assumptions and accepted concepts and theories about the role of natural resources in African conflicts be re-examined. The aim of this thesis is to offer a revaluation of the role of coltan during the Democratic Republic of Congo’s (DRC) Second War (1998-2003) through a critical engagement with the resource wars literature. The purpose is to offer a re-reading of the role of coltan in the DRC Second War and the broader regional and global economic context in which this conflict took place. It rejects the commonly cited assumption that the presence of coltan in the DRC means it is an initiator of conflict. Rather, this thesis argues that the central role of coltan in the DRC Second War was as an aggravator of conflict in that its exploitation was used by different parties to fund their military and political ambitions. This thesis also argues that the DRC’s weak state structures and pivotal role within the Great Lakes region, as well as the international trade of coltan and the nature of the DRC coltan mining industry are all key factors in understanding coltan exploitation in the country’s Eastern Region during the Second War.
- Full Text:
- Date Issued: 2015
- Authors: Moleko, Teboho Banele
- Date: 2015
- Subjects: Congo (Democratic Republic) -- History -- 1997- , Natural resources -- Congo (Democratic Republic) , Tantalite -- Congo (Democratic Republic) , Natural resources -- Political aspects -- Congo (Democratic Republic) , Power (Social sciences) -- Congo (Democratic Republic) , Mines and mineral resources -- Congo (Democratic Republic)
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2889 , http://hdl.handle.net/10962/d1017864
- Description: The role of natural resources in African conflicts has been subject to extensive scholarly analysis. However, much of this analysis has taken a narrow economic reductionist bias. As such, it is imperative that the dominant assumptions and accepted concepts and theories about the role of natural resources in African conflicts be re-examined. The aim of this thesis is to offer a revaluation of the role of coltan during the Democratic Republic of Congo’s (DRC) Second War (1998-2003) through a critical engagement with the resource wars literature. The purpose is to offer a re-reading of the role of coltan in the DRC Second War and the broader regional and global economic context in which this conflict took place. It rejects the commonly cited assumption that the presence of coltan in the DRC means it is an initiator of conflict. Rather, this thesis argues that the central role of coltan in the DRC Second War was as an aggravator of conflict in that its exploitation was used by different parties to fund their military and political ambitions. This thesis also argues that the DRC’s weak state structures and pivotal role within the Great Lakes region, as well as the international trade of coltan and the nature of the DRC coltan mining industry are all key factors in understanding coltan exploitation in the country’s Eastern Region during the Second War.
- Full Text:
- Date Issued: 2015