Quantifying the water savings benefit of water hyacinth (Eichhornia crassipes) control in the Vaalharts Irrigation Scheme
- Authors: Arp, Reinhardt
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/409 , vital:19956
- Description: Global fresh water resources are under increasing pressure from an ever-growing population and global economic development, highlighting the need for sustainable water management. Effective sustainable management must also control any additional factors that may aggravate the water scarcity problem. Invasive alien plants present such an aggravating threat, and pose a particular problem for water scarce countries in particular. South Africa is not immune to this global phenomenon, with plant invasions estimated to carry an annual loss of R5.8 billion in water provisioning services. Given the country’s semi-arid climate, and relative water scarcity, the threat presented by invasive plants needs to managed effectively for the sustainability of the countries already scarce fresh water resources. One species in particular, water hyacinth (Eichhornia crassipes), is regarded as one of the most destructive aquatic weeds in the world. The threat presented by this weed is of particular concern for economically productive water resources, such as irrigation water. Through high levels of evapotranspiration, water hyacinth leads to substantial water losses that could otherwise have been used more productively, thereby creating an externality on irrigation fed agriculture. An economic valuation of irrigation water and the loss thereof from water hyacinth, is a step towards improved water management and alien plant control. This will provide policy makers, stakeholders and irrigation managers with the relevant information they need to improve sustainability, allocate scarce resources more efficiently and enhance the returns to water. This thesis provides such an evaluation of the benefits of water hyacinth control, using the Vaalharts Irrigation Scheme as a case study. The benefit of water hyacinth control programmes are essentially ‘avoided costs’ of no control. The study quantified the water saving benefits of water hyacinth control for the Vaalharts Irrigation Scheme at Warrenton Weir on the Vaal River, South Africa. Three evapotranspiration to evaporation (ET:EW) ratios at three levels of invasion (100; 50 and 25% cover) were used to estimate the net annual water loss at Warrenton Weir. A Residual Value Method was employed to estimate the average production value of irrigation water, to serve as a proxy for the value of water lost via evapotranspiration by water hyacinth. The average production value of irrigation water for the Vaalharts was estimated to be R300/m3, which translated into an annual benefit of between R500 million and R9 billion. However, due to various limitations associated with the valuation method, the inflationary bias of estimating the average value of water and the unlikelihood of ET:EW ratios being larger than 1.4 in reality, it was suggested that R500 million was the more realistic value of the benefit of control. Despite being a conservative estimation, the benefit still equated to a quarter of the annual production value of the irrigation scheme, suggesting the water hyacinth could potentially reduce the productivity of the scheme by as much as 25% in the event of a scarcity of water on the scheme. The results of this research highlight the need for invasive plant control, especially where invasions affect economically productive water resources. Therefore, it is recommended that alien plant control policy prioritise invasions of this nature, as they present significant costs to the economy yet carry substantial benefits.
- Full Text:
- Date Issued: 2016
- Authors: Arp, Reinhardt
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/409 , vital:19956
- Description: Global fresh water resources are under increasing pressure from an ever-growing population and global economic development, highlighting the need for sustainable water management. Effective sustainable management must also control any additional factors that may aggravate the water scarcity problem. Invasive alien plants present such an aggravating threat, and pose a particular problem for water scarce countries in particular. South Africa is not immune to this global phenomenon, with plant invasions estimated to carry an annual loss of R5.8 billion in water provisioning services. Given the country’s semi-arid climate, and relative water scarcity, the threat presented by invasive plants needs to managed effectively for the sustainability of the countries already scarce fresh water resources. One species in particular, water hyacinth (Eichhornia crassipes), is regarded as one of the most destructive aquatic weeds in the world. The threat presented by this weed is of particular concern for economically productive water resources, such as irrigation water. Through high levels of evapotranspiration, water hyacinth leads to substantial water losses that could otherwise have been used more productively, thereby creating an externality on irrigation fed agriculture. An economic valuation of irrigation water and the loss thereof from water hyacinth, is a step towards improved water management and alien plant control. This will provide policy makers, stakeholders and irrigation managers with the relevant information they need to improve sustainability, allocate scarce resources more efficiently and enhance the returns to water. This thesis provides such an evaluation of the benefits of water hyacinth control, using the Vaalharts Irrigation Scheme as a case study. The benefit of water hyacinth control programmes are essentially ‘avoided costs’ of no control. The study quantified the water saving benefits of water hyacinth control for the Vaalharts Irrigation Scheme at Warrenton Weir on the Vaal River, South Africa. Three evapotranspiration to evaporation (ET:EW) ratios at three levels of invasion (100; 50 and 25% cover) were used to estimate the net annual water loss at Warrenton Weir. A Residual Value Method was employed to estimate the average production value of irrigation water, to serve as a proxy for the value of water lost via evapotranspiration by water hyacinth. The average production value of irrigation water for the Vaalharts was estimated to be R300/m3, which translated into an annual benefit of between R500 million and R9 billion. However, due to various limitations associated with the valuation method, the inflationary bias of estimating the average value of water and the unlikelihood of ET:EW ratios being larger than 1.4 in reality, it was suggested that R500 million was the more realistic value of the benefit of control. Despite being a conservative estimation, the benefit still equated to a quarter of the annual production value of the irrigation scheme, suggesting the water hyacinth could potentially reduce the productivity of the scheme by as much as 25% in the event of a scarcity of water on the scheme. The results of this research highlight the need for invasive plant control, especially where invasions affect economically productive water resources. Therefore, it is recommended that alien plant control policy prioritise invasions of this nature, as they present significant costs to the economy yet carry substantial benefits.
- Full Text:
- Date Issued: 2016
Molecular epidemiology of vibrio pathogens in selected surface waters and treated final effluents of wastewater treatment plants in Chris Hani District Municipality in the Eastern Cape Province, South Africa
- Authors: Ayodeji, Onsula Charles
- Date: 2018
- Subjects: Sewage disposal plants Sewage -- Purification Water -- Purification -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Microbiology
- Identifier: http://hdl.handle.net/10353/10464 , vital:35478
- Description: Access to clean and safe water is essential for the survival of human beings. Nevertheless pollution from wastewater treatment plants (WWTPs) effluents often impacts the microbiological qualities of surface waters. Availability of freshwater resources is indispensable for preventing waterborne diseases. The current study evaluated the physicochemical properties and abundance of Vibrio species in selected rivers and WWTPs in the Eastern Cape Province of South Africa, over a one year sampling regime (December, 2016 to November, 2017). Water samples were collected monthly at designated locations along the banks of two rivers, treated effluents from 500 m upstream and downstream discharge points of two WWTPs and examined for physicochemical qualities, prevalence of Vibrio pathogens and their antibiogram profiles using both cultural and molecular techniques. The findings reveal the qualities of Tsomo and Great Fish river qualities with respect to electrical conductivity (EC) (137.75 – 377.69 mg/l), total suspended solids (TSS) (52.00 – 725.19 mg/l) and temperature (12.7 – 23 oC) and the treated effluents of WW-AD and WW-CR WWTPs with respect to EC (525.73 – 1071.89 mg/l), free chlorine (0.00 mg/l – 0.68 mg/l), temperature (12.4 – 28.8 oC), TSS (14.67 – 276.44 mg/l) exceeds the permissible limits set for effluent discharged to freshwater by South Africa guidelines. Other physicochemical qualities such as turbidity (63.11 – 797.17 NTU), BOD (3.30 – 5.26 mg/l) and TDS (68.88 – 148.14 mg/l) for Tsomo and Great Fish river and turbidity (20.33 – 310 NTU), biological oxygen demand (BOD) (1.28 – 4.96 mg/l), and total dissolve solid (TDS) (262.89 – 534.89 mg/l) for WWTPs WW-AD and WW-CR did not comply with WHO and EU standards as no regulation is set for them in the South African guidelines for domestic water usage. Statistical analysis revealed that pH, electrical conductivities, dissolved oxygen and total dissolved solid were significantly different whereas temperature did not differ significantly with respect to the four seasons (P < 0.05). The Vibrio densities for Great Fish river ranged between 0 and 3.29 log10 CFU/ml with the highest obtained in the spring. The Tsomo River Vibrio densities varied between 0 to 3.56 log10 CFU/ml and the maximum densities recorded during summer. The presumptive Vibrio densities in WW-AD and WW-CR WWTPs ranged from 0 to 3.67 log10 CFU/ml and 0 to 4.42 log10 CFU/ml with autumn and spring having the highest loads respectively. Molecular identification of the presumptive Vibrio species revealed 424 positive for the Vibrio genus. Of these, 21.69 percent, 11.79 percent, 8.25 percent and 2.12 percent were confirmed as V. cholerae, V. mimicus, V. parahaemolyticus and V. fluvialis respectively. The presence of potentially Vibrio pathogens in the rivers and treated effluents suggests potential public health threat to the communities relying on receiving watersheds where the effluents are discharged. Results of antibiotic sensitivity testing revealed high sensitivities against Ofloxacin (85.54 percent), Cefuroxime (81.93 percent), and Ciprofloxacin (74.70 percent), whereas resistance against other antibiotics follow this order: Imipenem (42.17 percent), Amoxicillin-Clavulanic Acid (54.17 percent), Ampicillin (63.54 percent), Nitrofurantoin (71.79 percent) and Polymyxin B (97.44 percent). Surprisingly, the resistance of Vibrio species against the known effective Carbapenems was relatively high (Meropenem (38.54 percent) and Imipenem (58.88 percent). Multiple antibiotic resistance phenotypes (MARP) of the isolates were resistant to two or more antibiotics whereas the calculated multiple antibiotic resistance index (MARI) ranged from 0.2 to 0.7. The observed high multiple antibiotics index suggest the recovered Vibrio pathogens are of high antimicrobial usage origin. Increase in antimicrobial resistance profiles towards conventionally used antibiotics as indicated in this study calls for adequate sanitation facilities and proper surveillance programs towards monitoring of antimicrobial resistance determinants in wastewater treatment effluents and receiving watersheds. This will in turn enhance early detection of resistant strains of public health importance, and supports the prompt notification and investigation of outbreaks. It further advocates the need for constant monitoring programme by the relevant regulatory agencies to ensure total compliance of the wastewater treatment facilities to the stipulated standards.
- Full Text:
- Date Issued: 2018
- Authors: Ayodeji, Onsula Charles
- Date: 2018
- Subjects: Sewage disposal plants Sewage -- Purification Water -- Purification -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Microbiology
- Identifier: http://hdl.handle.net/10353/10464 , vital:35478
- Description: Access to clean and safe water is essential for the survival of human beings. Nevertheless pollution from wastewater treatment plants (WWTPs) effluents often impacts the microbiological qualities of surface waters. Availability of freshwater resources is indispensable for preventing waterborne diseases. The current study evaluated the physicochemical properties and abundance of Vibrio species in selected rivers and WWTPs in the Eastern Cape Province of South Africa, over a one year sampling regime (December, 2016 to November, 2017). Water samples were collected monthly at designated locations along the banks of two rivers, treated effluents from 500 m upstream and downstream discharge points of two WWTPs and examined for physicochemical qualities, prevalence of Vibrio pathogens and their antibiogram profiles using both cultural and molecular techniques. The findings reveal the qualities of Tsomo and Great Fish river qualities with respect to electrical conductivity (EC) (137.75 – 377.69 mg/l), total suspended solids (TSS) (52.00 – 725.19 mg/l) and temperature (12.7 – 23 oC) and the treated effluents of WW-AD and WW-CR WWTPs with respect to EC (525.73 – 1071.89 mg/l), free chlorine (0.00 mg/l – 0.68 mg/l), temperature (12.4 – 28.8 oC), TSS (14.67 – 276.44 mg/l) exceeds the permissible limits set for effluent discharged to freshwater by South Africa guidelines. Other physicochemical qualities such as turbidity (63.11 – 797.17 NTU), BOD (3.30 – 5.26 mg/l) and TDS (68.88 – 148.14 mg/l) for Tsomo and Great Fish river and turbidity (20.33 – 310 NTU), biological oxygen demand (BOD) (1.28 – 4.96 mg/l), and total dissolve solid (TDS) (262.89 – 534.89 mg/l) for WWTPs WW-AD and WW-CR did not comply with WHO and EU standards as no regulation is set for them in the South African guidelines for domestic water usage. Statistical analysis revealed that pH, electrical conductivities, dissolved oxygen and total dissolved solid were significantly different whereas temperature did not differ significantly with respect to the four seasons (P < 0.05). The Vibrio densities for Great Fish river ranged between 0 and 3.29 log10 CFU/ml with the highest obtained in the spring. The Tsomo River Vibrio densities varied between 0 to 3.56 log10 CFU/ml and the maximum densities recorded during summer. The presumptive Vibrio densities in WW-AD and WW-CR WWTPs ranged from 0 to 3.67 log10 CFU/ml and 0 to 4.42 log10 CFU/ml with autumn and spring having the highest loads respectively. Molecular identification of the presumptive Vibrio species revealed 424 positive for the Vibrio genus. Of these, 21.69 percent, 11.79 percent, 8.25 percent and 2.12 percent were confirmed as V. cholerae, V. mimicus, V. parahaemolyticus and V. fluvialis respectively. The presence of potentially Vibrio pathogens in the rivers and treated effluents suggests potential public health threat to the communities relying on receiving watersheds where the effluents are discharged. Results of antibiotic sensitivity testing revealed high sensitivities against Ofloxacin (85.54 percent), Cefuroxime (81.93 percent), and Ciprofloxacin (74.70 percent), whereas resistance against other antibiotics follow this order: Imipenem (42.17 percent), Amoxicillin-Clavulanic Acid (54.17 percent), Ampicillin (63.54 percent), Nitrofurantoin (71.79 percent) and Polymyxin B (97.44 percent). Surprisingly, the resistance of Vibrio species against the known effective Carbapenems was relatively high (Meropenem (38.54 percent) and Imipenem (58.88 percent). Multiple antibiotic resistance phenotypes (MARP) of the isolates were resistant to two or more antibiotics whereas the calculated multiple antibiotic resistance index (MARI) ranged from 0.2 to 0.7. The observed high multiple antibiotics index suggest the recovered Vibrio pathogens are of high antimicrobial usage origin. Increase in antimicrobial resistance profiles towards conventionally used antibiotics as indicated in this study calls for adequate sanitation facilities and proper surveillance programs towards monitoring of antimicrobial resistance determinants in wastewater treatment effluents and receiving watersheds. This will in turn enhance early detection of resistant strains of public health importance, and supports the prompt notification and investigation of outbreaks. It further advocates the need for constant monitoring programme by the relevant regulatory agencies to ensure total compliance of the wastewater treatment facilities to the stipulated standards.
- Full Text:
- Date Issued: 2018
The community as part of a multi-stakeholder approach towards development opportunities for youth in Indwe, Eastern Cape
- Authors: Baleni , Khangelwa
- Date: 2019
- Subjects: Youth development Community development
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/17518 , vital:41083
- Description: This dissertation discusses the involvement of a community in creating development opportunities for youth in Indwe, under Emalahleni Local Municipality in the Eastern Cape. Establishing a position where community members put themselves concerning youth development is what inspired the study. The study is further motivated by trying to gain perspectives from the youth because most discourses on youth rarely feature their voices. Additionally, it seeks to gain perspectives on the stakeholder’s insights on the involvement of the community in youth development. The literature consulted was broken up into; the situation of youth in South Africa, which looked at youth unemployment and youth development policies; youth development, which looked at risk and protective factors that affect youth development. The literature further uncovered the role currently played by communities in youth development, and lastly the multi-stakeholder processes for youth development. The Quintuple Helix model was a framework used to shape this study. This framework emphasises that the natural environment and in this case, the community be added to other stakeholders to ensure a sustainable youth development. What is crucial in the framework is the overlap and cross-communication between the different helixes or sectors, sectors such as the university, the government, the private sector, the culture based media, and the natural environment. The study utilised a qualitative methodology with an interpretive and descriptive paradigm, which used focus groups and a qualitative questionnaire as a method of data collection. The data was analysed and presented following the following three themes; i.e., community involvement in youth development, indigenous knowledge for youth development, and opportunities for youth development. The findings of the study revealed that, if Indwe community provides youth with more spaces, and chances to participate in their development, the youth could challenge prominent discourses than treat them as unmotivated, and exclude them from decision-making processes, which directly affect them, and the society within which they live. The findings also revealed that the Indwe community should inform youth iv development programmes, as this would ensure sustainability, and give a sense of ownership to the community. The findings further indicated that the Indwe community could utilise its natural resources to create opportunities for youth development. Moreover, the private sector, the media, and the education system have all contributed in youth development; however, the government has taken full responsibility for youth development in Indwe, and this caused the participants to feel that it is the government’s responsibility to create opportunities for youth development. In conclusion, Indwe community has a challenge of youth development. The problem is fuelled by issues such as complexity in politics, nepotism, and a lack of opportunities. Stakeholders such as the private sector, the media based culture, and the government are involved in the creation of development opportunities for youth in Indwe. However, the sector that has taken the most responsibility for the development of youth is the government. Indwe community members are not involved in the creation of opportunities for youth development; they, however, understand that they have to be significant role players.
- Full Text:
- Date Issued: 2019
- Authors: Baleni , Khangelwa
- Date: 2019
- Subjects: Youth development Community development
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/17518 , vital:41083
- Description: This dissertation discusses the involvement of a community in creating development opportunities for youth in Indwe, under Emalahleni Local Municipality in the Eastern Cape. Establishing a position where community members put themselves concerning youth development is what inspired the study. The study is further motivated by trying to gain perspectives from the youth because most discourses on youth rarely feature their voices. Additionally, it seeks to gain perspectives on the stakeholder’s insights on the involvement of the community in youth development. The literature consulted was broken up into; the situation of youth in South Africa, which looked at youth unemployment and youth development policies; youth development, which looked at risk and protective factors that affect youth development. The literature further uncovered the role currently played by communities in youth development, and lastly the multi-stakeholder processes for youth development. The Quintuple Helix model was a framework used to shape this study. This framework emphasises that the natural environment and in this case, the community be added to other stakeholders to ensure a sustainable youth development. What is crucial in the framework is the overlap and cross-communication between the different helixes or sectors, sectors such as the university, the government, the private sector, the culture based media, and the natural environment. The study utilised a qualitative methodology with an interpretive and descriptive paradigm, which used focus groups and a qualitative questionnaire as a method of data collection. The data was analysed and presented following the following three themes; i.e., community involvement in youth development, indigenous knowledge for youth development, and opportunities for youth development. The findings of the study revealed that, if Indwe community provides youth with more spaces, and chances to participate in their development, the youth could challenge prominent discourses than treat them as unmotivated, and exclude them from decision-making processes, which directly affect them, and the society within which they live. The findings also revealed that the Indwe community should inform youth iv development programmes, as this would ensure sustainability, and give a sense of ownership to the community. The findings further indicated that the Indwe community could utilise its natural resources to create opportunities for youth development. Moreover, the private sector, the media, and the education system have all contributed in youth development; however, the government has taken full responsibility for youth development in Indwe, and this caused the participants to feel that it is the government’s responsibility to create opportunities for youth development. In conclusion, Indwe community has a challenge of youth development. The problem is fuelled by issues such as complexity in politics, nepotism, and a lack of opportunities. Stakeholders such as the private sector, the media based culture, and the government are involved in the creation of development opportunities for youth in Indwe. However, the sector that has taken the most responsibility for the development of youth is the government. Indwe community members are not involved in the creation of opportunities for youth development; they, however, understand that they have to be significant role players.
- Full Text:
- Date Issued: 2019
The relationship between the leadership, internal quality, and customer satisfaction levels of dealerships in a South African motor vehicle organisation
- Authors: Botha, Jennifer
- Date: 2002
- Subjects: Consumer satisfaction , Automobile dealers -- South Africa , Industrial productivity , Customer services
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1185 , http://hdl.handle.net/10962/d1002802 , Consumer satisfaction , Automobile dealers -- South Africa , Industrial productivity , Customer services
- Description: This research investigates the relationship between the leadership, internal quality, and customer satisfaction levels in the dealerships of a South African motor vehicle organisation. The Service Profit Chain provides the background theory to this relationship, by suggesting that various factors within the service delivery system of an organisation affect the level of customer satisfaction. From the Service Profit Chain, it is established that two of the prevalent factors affecting customer satisfaction, are leadership and internal quality. The Full Range Leadership Development Theory provides the backdrop for analysing the leadership style of each dealership by using the Multifactor Leadership Questionnaire. The Competence Process forms the theoretical construct against which the internal quality of these dealerships is assessed using the Organisation Competence Analysis Questionnaire. Information was gathered, using these two instruments, from a sample of 85 motor vehicle dealerships within South Africa. The customer satisfaction levels at each of these dealerships, is measured by the motor vehicle organisation’s own instrument, known as the Customer Satisfaction Index. Data obtained from each instrument, for the respective dealerships, was then statistically analysed. However, due to the low reliability of the instruments used in this research, the results of this study indicate that there is no relationship between the leadership, internal quality, and customer satisfaction levels within a South African motor vehicle organisation. Therefore we can conclude that the null hypotheses can not be rejected.
- Full Text:
- Date Issued: 2002
- Authors: Botha, Jennifer
- Date: 2002
- Subjects: Consumer satisfaction , Automobile dealers -- South Africa , Industrial productivity , Customer services
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1185 , http://hdl.handle.net/10962/d1002802 , Consumer satisfaction , Automobile dealers -- South Africa , Industrial productivity , Customer services
- Description: This research investigates the relationship between the leadership, internal quality, and customer satisfaction levels in the dealerships of a South African motor vehicle organisation. The Service Profit Chain provides the background theory to this relationship, by suggesting that various factors within the service delivery system of an organisation affect the level of customer satisfaction. From the Service Profit Chain, it is established that two of the prevalent factors affecting customer satisfaction, are leadership and internal quality. The Full Range Leadership Development Theory provides the backdrop for analysing the leadership style of each dealership by using the Multifactor Leadership Questionnaire. The Competence Process forms the theoretical construct against which the internal quality of these dealerships is assessed using the Organisation Competence Analysis Questionnaire. Information was gathered, using these two instruments, from a sample of 85 motor vehicle dealerships within South Africa. The customer satisfaction levels at each of these dealerships, is measured by the motor vehicle organisation’s own instrument, known as the Customer Satisfaction Index. Data obtained from each instrument, for the respective dealerships, was then statistically analysed. However, due to the low reliability of the instruments used in this research, the results of this study indicate that there is no relationship between the leadership, internal quality, and customer satisfaction levels within a South African motor vehicle organisation. Therefore we can conclude that the null hypotheses can not be rejected.
- Full Text:
- Date Issued: 2002
Developing and using an assessment instrument for spatial skills in Grade 10 geometry learners
- Authors: Cowley, Jane
- Date: 2015
- Subjects: Geometry -- Study and teaching (Secondary) -- South Africa -- Eastern Cape , Geometry -- Evaluation. , Mathematics -- Study and teaching (Secondary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2025 , http://hdl.handle.net/10962/d1017336
- Description: This qualitative investigation took the form of a case study and fell within the interpretive research paradigm. The Mathematics Chair at the Education Department of Rhodes University launched the Mathematics Teacher Enrichment Programme (MTEP) in 2010 in order to combat poor Mathematics performance of learners in the lower Albany district of the Eastern Cape. The challenge that the participating MTEP teachers faced was a lack of time available to implement new teaching ideas. This was because most of their time was spent catching up “lost” or untaught concepts in the classroom. To address this problem, the Catch-Up Project was launched, whereby selected Mathematics teachers in the area taught lost concepts to Grade Ten learners during afternoon classes in an attempt to improve their fundamental Mathematics knowledge. In order to establish which sections of Mathematics were more difficult for the learners in this programme, bench mark tests were administered biannually. Whilst these tests certainly identified deficient areas within their Mathematics knowledge, the poorest performance areas were the sections of the syllabus which were spatial in nature, such as Space and Shape and Geometry. However, a more in depth assessment tool was required to establish which specific spatial skills the learners were not able to employ when doing these Geometry tasks. To this end, the Spatial Skills Assessment Tasks (SSAT) was developed. It consisted of traditional text book type Geometry tasks and real-world context tasks, both of which were used to assess six spatial skills deemed crucial to successfully facilitate learning Geometry. The case study took place in two of the schools which participated in the Grade Ten Catch-Up project. The case was focused on Grade Ten learners and the unit of analysis was their responses to the SSAT instrument. The learners that participated all did so on a strictly voluntary basis and great care was taken to protect their wellbeing and anonymity at all times. The results of the SSAT instrument revealed that the real world context tasks were in general far more successfully answered than the traditional text book type questions. Important trends in learner responses were noted and highlighted. For example, geometric terminology remains a huge challenge for learners, especially as they study Mathematics in their second language. The ability of the learners to differentiate between such concepts as congruency and similarity is severely compromised, partly due to a lack of terminological understanding but also due to a perceived lack of exposure to the material. Concepts such as verticality and horizontality also remain a huge challenge, possibly for the same reasons. They are poorly understood and yet vital to achievement in Geometry. Recommendations for the development and strengthening of spatial skills support the constructivist approach to learning. Hands on activities and intensive sustained practice over a period of a few months, in which both teachers and learners are actively involved in the learning process, would be considered most beneficial to the long term enhancement of these vital spatial skills and to the learning of Geometry in general.
- Full Text:
- Date Issued: 2015
- Authors: Cowley, Jane
- Date: 2015
- Subjects: Geometry -- Study and teaching (Secondary) -- South Africa -- Eastern Cape , Geometry -- Evaluation. , Mathematics -- Study and teaching (Secondary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2025 , http://hdl.handle.net/10962/d1017336
- Description: This qualitative investigation took the form of a case study and fell within the interpretive research paradigm. The Mathematics Chair at the Education Department of Rhodes University launched the Mathematics Teacher Enrichment Programme (MTEP) in 2010 in order to combat poor Mathematics performance of learners in the lower Albany district of the Eastern Cape. The challenge that the participating MTEP teachers faced was a lack of time available to implement new teaching ideas. This was because most of their time was spent catching up “lost” or untaught concepts in the classroom. To address this problem, the Catch-Up Project was launched, whereby selected Mathematics teachers in the area taught lost concepts to Grade Ten learners during afternoon classes in an attempt to improve their fundamental Mathematics knowledge. In order to establish which sections of Mathematics were more difficult for the learners in this programme, bench mark tests were administered biannually. Whilst these tests certainly identified deficient areas within their Mathematics knowledge, the poorest performance areas were the sections of the syllabus which were spatial in nature, such as Space and Shape and Geometry. However, a more in depth assessment tool was required to establish which specific spatial skills the learners were not able to employ when doing these Geometry tasks. To this end, the Spatial Skills Assessment Tasks (SSAT) was developed. It consisted of traditional text book type Geometry tasks and real-world context tasks, both of which were used to assess six spatial skills deemed crucial to successfully facilitate learning Geometry. The case study took place in two of the schools which participated in the Grade Ten Catch-Up project. The case was focused on Grade Ten learners and the unit of analysis was their responses to the SSAT instrument. The learners that participated all did so on a strictly voluntary basis and great care was taken to protect their wellbeing and anonymity at all times. The results of the SSAT instrument revealed that the real world context tasks were in general far more successfully answered than the traditional text book type questions. Important trends in learner responses were noted and highlighted. For example, geometric terminology remains a huge challenge for learners, especially as they study Mathematics in their second language. The ability of the learners to differentiate between such concepts as congruency and similarity is severely compromised, partly due to a lack of terminological understanding but also due to a perceived lack of exposure to the material. Concepts such as verticality and horizontality also remain a huge challenge, possibly for the same reasons. They are poorly understood and yet vital to achievement in Geometry. Recommendations for the development and strengthening of spatial skills support the constructivist approach to learning. Hands on activities and intensive sustained practice over a period of a few months, in which both teachers and learners are actively involved in the learning process, would be considered most beneficial to the long term enhancement of these vital spatial skills and to the learning of Geometry in general.
- Full Text:
- Date Issued: 2015
Perceptions of primary school teachers towards the South African Museum as an environmental education resource
- Authors: Harrison, Jo-Anne Elizabeth
- Date: 1994
- Subjects: Elementary school teachers -- South Africa -- Attitudes South African Museum Environmental education -- South Africa Environmental education -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1694 , http://hdl.handle.net/10962/d1003577
- Description: This study examines the perceptions of a small group of primary school teachers from Gugulethu in Cape Town, of the various exhibitions and education services currently offered at the South African Museum. Their perceptions of proposed services are also examined in order to find out which of these proposals, as well as existing services, best meet the needs expressed by this group of teachers. An attempt was also made to determine their level of understanding of environmental education and awareness of environmental issues. This study suggested the need for greater emphasis to be placed on the 'hands-on' components of the Museum's education programmes. The need for syllabus related and enriching educational programmes and resource materials was also identified. In this regard, the exhibits perceived to be of greatest benefit to the pupils were those relating either to the syllabus or their culture, whilst exhibits seen to be 'out of the pupils' experience' (eg. Fossils) were perceived as unimportant. The teachers also epressed a strong desire for training sessions to be held at the Museum that would help them improve their knowledge of the displays and programmes. It was found that the teachers understanding of environmental education ranged from syllabus-related definitions to more holistic views. The environmental issues perceived to be of greatest importance were mainly social issues such as poverty, violence, child abuse and street children as well as water pollution and cruelty to animals. The production of posters and resource materials, drama, story-telling and programmes for parents were seen to be among the choices most favoured for the Museum to adopt in promoting environmental awareness in the community.
- Full Text:
- Date Issued: 1994
- Authors: Harrison, Jo-Anne Elizabeth
- Date: 1994
- Subjects: Elementary school teachers -- South Africa -- Attitudes South African Museum Environmental education -- South Africa Environmental education -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1694 , http://hdl.handle.net/10962/d1003577
- Description: This study examines the perceptions of a small group of primary school teachers from Gugulethu in Cape Town, of the various exhibitions and education services currently offered at the South African Museum. Their perceptions of proposed services are also examined in order to find out which of these proposals, as well as existing services, best meet the needs expressed by this group of teachers. An attempt was also made to determine their level of understanding of environmental education and awareness of environmental issues. This study suggested the need for greater emphasis to be placed on the 'hands-on' components of the Museum's education programmes. The need for syllabus related and enriching educational programmes and resource materials was also identified. In this regard, the exhibits perceived to be of greatest benefit to the pupils were those relating either to the syllabus or their culture, whilst exhibits seen to be 'out of the pupils' experience' (eg. Fossils) were perceived as unimportant. The teachers also epressed a strong desire for training sessions to be held at the Museum that would help them improve their knowledge of the displays and programmes. It was found that the teachers understanding of environmental education ranged from syllabus-related definitions to more holistic views. The environmental issues perceived to be of greatest importance were mainly social issues such as poverty, violence, child abuse and street children as well as water pollution and cruelty to animals. The production of posters and resource materials, drama, story-telling and programmes for parents were seen to be among the choices most favoured for the Museum to adopt in promoting environmental awareness in the community.
- Full Text:
- Date Issued: 1994
The fellowship experience : an investigation into the shared exploration of children's fiction by teacher and pupils in the senior primary school
- Authors: Haschick, J D
- Date: 1987
- Subjects: Children's stories -- Study and teaching (Elementary) , English literature -- Study and teaching (Elementary) -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1374 , http://hdl.handle.net/10962/d1001440
- Full Text:
- Date Issued: 1987
- Authors: Haschick, J D
- Date: 1987
- Subjects: Children's stories -- Study and teaching (Elementary) , English literature -- Study and teaching (Elementary) -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1374 , http://hdl.handle.net/10962/d1001440
- Full Text:
- Date Issued: 1987
Perceptions of learners and teachers on the alternatives to the alternatives to corporal punishment: a case study of two high schools in King William’s Town Education District in the Eastern Cape
- Authors: Kepe Mzukisi Howard
- Date: 2014
- Subjects: Corporal punishment of children -- South Africa , Children's rights -- South Africa , School discipline -- South Africa , Teacher-student relationships -- South Africa
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16226 , http://hdl.handle.net/10353/d1019741 , Corporal punishment of children -- South Africa , Children's rights -- South Africa , School discipline -- South Africa , Teacher-student relationships -- South Africa
- Description: The purpose of the study was to examine the perceptions of learners and teachers on the alternatives to ‘Alternatives to Corporal Punishment’ (ATPC) in particular and discipline generally in the King William’s Town Education District in two high schools. The study ascended as a result of the decline of learner’s discipline in high schools. This study is located in the interpretive paradigm and adopted a qualitative research approach using questionnaires, interviews focus groups and field notes in the collection of data. The Data revealed that schools were using different strategies to maintain learner’s discipline such as Code of Conduct, Disciplinary hearing, Safety and Security Committee, Educators, Corporal Punishment, Alternative methods to Corporal Punishment and the role of parents. It further revealed that the Department of Education is not supportive in the maintenance of discipline in the schools under study in King William’s Town District. The conclusion that was arrived at was that all the stakeholders should agree upon and be acquainted with the Code of Conduct and rules that are guiding the schools. The study came up with the proposal that learners should know the consequences of transgressing the Code of Conduct. To address disciplinary problems, the study came up with the key recommendation that all stakeholders must have ownership and to work as a team in the implementation of those policies.
- Full Text:
- Date Issued: 2014
- Authors: Kepe Mzukisi Howard
- Date: 2014
- Subjects: Corporal punishment of children -- South Africa , Children's rights -- South Africa , School discipline -- South Africa , Teacher-student relationships -- South Africa
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16226 , http://hdl.handle.net/10353/d1019741 , Corporal punishment of children -- South Africa , Children's rights -- South Africa , School discipline -- South Africa , Teacher-student relationships -- South Africa
- Description: The purpose of the study was to examine the perceptions of learners and teachers on the alternatives to ‘Alternatives to Corporal Punishment’ (ATPC) in particular and discipline generally in the King William’s Town Education District in two high schools. The study ascended as a result of the decline of learner’s discipline in high schools. This study is located in the interpretive paradigm and adopted a qualitative research approach using questionnaires, interviews focus groups and field notes in the collection of data. The Data revealed that schools were using different strategies to maintain learner’s discipline such as Code of Conduct, Disciplinary hearing, Safety and Security Committee, Educators, Corporal Punishment, Alternative methods to Corporal Punishment and the role of parents. It further revealed that the Department of Education is not supportive in the maintenance of discipline in the schools under study in King William’s Town District. The conclusion that was arrived at was that all the stakeholders should agree upon and be acquainted with the Code of Conduct and rules that are guiding the schools. The study came up with the proposal that learners should know the consequences of transgressing the Code of Conduct. To address disciplinary problems, the study came up with the key recommendation that all stakeholders must have ownership and to work as a team in the implementation of those policies.
- Full Text:
- Date Issued: 2014
The approaches of traditional healers in the treatment of HIV/ AIDS: the case of Chris Hani District Municipality, Cala, Tsengiwe, Eastern cape, South Africa
- Authors: Mati, Similo
- Date: 2017
- Subjects: People with HIV and AIDS disease -- healers -- South Africa --Eastern Cape Traditional medicine -- South Africa -- Eastern Cape Healers -- South Africa -- Eastern Cape HIV infections -- Treatment -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5249 , vital:29171
- Description: In South Africa, just like in any other country within the African continent, traditional healing remains an integral part of many communities and this is not just restricted to the rural communities only, as is sometimes assumed. The main aim of this research was to explore the approaches of traditional healers in the treatment of HIV/AIDS in the Chris Hani District Municipality, Eastern Cape. The following research objectives were followed regarding the approaches of traditional healers in the treatment of HIV/AIDS: (i) to assess how traditional healers and people living with HIV/AIDS in Tsengiwe village understand HIV/AIDS, (ii) to investigate the reasons people living with HIV/AIDS consult traditional healers in Tsengiwe village, (iii) to assess Tsengiwe village traditional healers’ treatment strategies for HIV/AIDS, (iv) to establish how traditional healers view their role in the treatment of HIV/AIDS in Tsengiwe village. A qualitative research design was utilized, using in-depth interviews with traditional healers and focus group discussions with caregivers and people living with HIV/AIDS respectively. A type of non-probability sampling known as purposive sampling was used. A total of sixteen (16) participants were interviewed. The findings in this research revealed the following themes: (i) HIV/AIDS is incurable and it is understood by symptoms, (ii) belief system entrenched in traditional healing, (iii) cleansing rituals and traditional medicinal remedies and, (iv) strengthening relations between stakeholders. While traditional healers expressed a willingness to work with biomedical professionals in the management of HIV/AIDS, caregivers and people living with HIV/AIDS preferred going to clinics and hospitals for treatment. Furthermore, people living with HIV/AIDS in this research never admitted to consulting traditional healers for their ailments, only saying that they choose to self-medicate.
- Full Text:
- Date Issued: 2017
- Authors: Mati, Similo
- Date: 2017
- Subjects: People with HIV and AIDS disease -- healers -- South Africa --Eastern Cape Traditional medicine -- South Africa -- Eastern Cape Healers -- South Africa -- Eastern Cape HIV infections -- Treatment -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5249 , vital:29171
- Description: In South Africa, just like in any other country within the African continent, traditional healing remains an integral part of many communities and this is not just restricted to the rural communities only, as is sometimes assumed. The main aim of this research was to explore the approaches of traditional healers in the treatment of HIV/AIDS in the Chris Hani District Municipality, Eastern Cape. The following research objectives were followed regarding the approaches of traditional healers in the treatment of HIV/AIDS: (i) to assess how traditional healers and people living with HIV/AIDS in Tsengiwe village understand HIV/AIDS, (ii) to investigate the reasons people living with HIV/AIDS consult traditional healers in Tsengiwe village, (iii) to assess Tsengiwe village traditional healers’ treatment strategies for HIV/AIDS, (iv) to establish how traditional healers view their role in the treatment of HIV/AIDS in Tsengiwe village. A qualitative research design was utilized, using in-depth interviews with traditional healers and focus group discussions with caregivers and people living with HIV/AIDS respectively. A type of non-probability sampling known as purposive sampling was used. A total of sixteen (16) participants were interviewed. The findings in this research revealed the following themes: (i) HIV/AIDS is incurable and it is understood by symptoms, (ii) belief system entrenched in traditional healing, (iii) cleansing rituals and traditional medicinal remedies and, (iv) strengthening relations between stakeholders. While traditional healers expressed a willingness to work with biomedical professionals in the management of HIV/AIDS, caregivers and people living with HIV/AIDS preferred going to clinics and hospitals for treatment. Furthermore, people living with HIV/AIDS in this research never admitted to consulting traditional healers for their ailments, only saying that they choose to self-medicate.
- Full Text:
- Date Issued: 2017
Structural and functional characterisation of the protein inhibitor of activated STAT3 (PIAS3)
- Authors: Mautsa, Nicodemus
- Date: 2011
- Subjects: Cytokines Immune response Proteins Cancer cells -- Growth -- Regulation
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3991 , http://hdl.handle.net/10962/d1004050
- Description: The signal transducer and activator of transcription (STAT) and protein inhibitor of STAT(PIAS) system represent an elegant regulatory mechanism of transcriptional control IN mammalian cytokine signalling. Abnormal activation of the system is associated with immune disorders and a large group of diverse tumours. PIAS3 is a multiple domain protein with distinct functions involved in regulation of cytokine-mediated gene activation pathways.Its over-expression significantly inhibits cell growth and renders cancer cells more sensitive to drugs. The objective of this study was to structurally and biochemically characterise the function of the PIAS3 protein using in silico, in vivo and in vitro analysis approaches.The conservation pattern of the PIAS protein family and critical conserved residues in the PINIT (Proline, Isoleucine, Asparagine, Isoleucine, Tyrosine) domain were identified. The PINIT domain model was generated based on the PINIT domain structure of yeast PIAS3 homologue Siz1 and structural determinants in the PIAS3-STAT3 interaction were evaluated.Guided by the in silico findings, in vivo analysis of the localisation of the PIAS3, mutantderivatives of PIAS3 (PIAS3-L97A, PIAS3-R99N, PIAS3-R99Q), PINIT and acidic domain was conducted. PIAS3 was completely localised in the nucleus while PIAS3 mutants appeared to exhibit diffuse cytoplasmic distribution. The PINIT domain was predominantly localised in the nucleus with some apparent perinuclear staining while the acidic domain exhibited a predominantly perinuclear staining pattern. Further analysis of the PINIT domain and the effect of the mutants on PIAS3-STAT3 interaction were assessed by in vitro analysis. Guided by in silico analysis, the PINIT domain and mutant derivatives of PINIT domain (PINIT-L97A, PINIT-R99N, and PINIT-R99Q) were heterologously expressed in Escherichia coli and subsequently purified using a combination of immobilized metal affinity and size exclusion based chromatography. The size and structural elements of the PINIT domain and its mutants were characterised. The 23 kDa PINIT domain was found to exist as a monomer in solution and its secondary structure was shown to consist of 66 % β-sheets by fourier transformed infrared spectroscopy consistent with the generated homology model.Using surface plasmonresonance spectroscopy (SPR) the PINIT domain was shown to bind to STAT3 in a specific concentration dependent manner. Recombinant PINIT-L97A,PINITR99N and PINIT-R99Q mutants, which exhibited similar structural integrity to the wildtype, were found to abrogate binding to STAT3. These findings suggest that these residues form part of a potential binding surface for stat3. In conclusion, this study has provided evidence that the PINIT domain is an important determinant of PIAS3 interaction with STAT3 and that the interaction is mediated by defined conserved residues directly involved in the PINITSTAT3 interaction.
- Full Text:
- Date Issued: 2011
- Authors: Mautsa, Nicodemus
- Date: 2011
- Subjects: Cytokines Immune response Proteins Cancer cells -- Growth -- Regulation
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3991 , http://hdl.handle.net/10962/d1004050
- Description: The signal transducer and activator of transcription (STAT) and protein inhibitor of STAT(PIAS) system represent an elegant regulatory mechanism of transcriptional control IN mammalian cytokine signalling. Abnormal activation of the system is associated with immune disorders and a large group of diverse tumours. PIAS3 is a multiple domain protein with distinct functions involved in regulation of cytokine-mediated gene activation pathways.Its over-expression significantly inhibits cell growth and renders cancer cells more sensitive to drugs. The objective of this study was to structurally and biochemically characterise the function of the PIAS3 protein using in silico, in vivo and in vitro analysis approaches.The conservation pattern of the PIAS protein family and critical conserved residues in the PINIT (Proline, Isoleucine, Asparagine, Isoleucine, Tyrosine) domain were identified. The PINIT domain model was generated based on the PINIT domain structure of yeast PIAS3 homologue Siz1 and structural determinants in the PIAS3-STAT3 interaction were evaluated.Guided by the in silico findings, in vivo analysis of the localisation of the PIAS3, mutantderivatives of PIAS3 (PIAS3-L97A, PIAS3-R99N, PIAS3-R99Q), PINIT and acidic domain was conducted. PIAS3 was completely localised in the nucleus while PIAS3 mutants appeared to exhibit diffuse cytoplasmic distribution. The PINIT domain was predominantly localised in the nucleus with some apparent perinuclear staining while the acidic domain exhibited a predominantly perinuclear staining pattern. Further analysis of the PINIT domain and the effect of the mutants on PIAS3-STAT3 interaction were assessed by in vitro analysis. Guided by in silico analysis, the PINIT domain and mutant derivatives of PINIT domain (PINIT-L97A, PINIT-R99N, and PINIT-R99Q) were heterologously expressed in Escherichia coli and subsequently purified using a combination of immobilized metal affinity and size exclusion based chromatography. The size and structural elements of the PINIT domain and its mutants were characterised. The 23 kDa PINIT domain was found to exist as a monomer in solution and its secondary structure was shown to consist of 66 % β-sheets by fourier transformed infrared spectroscopy consistent with the generated homology model.Using surface plasmonresonance spectroscopy (SPR) the PINIT domain was shown to bind to STAT3 in a specific concentration dependent manner. Recombinant PINIT-L97A,PINITR99N and PINIT-R99Q mutants, which exhibited similar structural integrity to the wildtype, were found to abrogate binding to STAT3. These findings suggest that these residues form part of a potential binding surface for stat3. In conclusion, this study has provided evidence that the PINIT domain is an important determinant of PIAS3 interaction with STAT3 and that the interaction is mediated by defined conserved residues directly involved in the PINITSTAT3 interaction.
- Full Text:
- Date Issued: 2011
Poverty, Food insecurity and livelihood diversification among households in Eastern Cape province, South Africa
- Authors: Megbowon, Ebenezer Toyin
- Date: 2017
- Subjects: Food supply -- South Africa -- Eastern Cape Poverty -- South Africa -- Eastern Cape Households -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/13086 , vital:39464
- Description: Livelihood diversification have been thought to be a rural issue where agriculture is the main source of income, however in an era of dwindling global and national economic situations, livelihood diversification have been seen to be prominent among urban dwellers as well although literatures have focused more on rural households. There is also a growing evidence in literature showing that livelihood diversification is indispensable for improving household welfare. This study adopts the sustainable livelihood framework to investigate the pattern and determinants of livelihood diversification (number of income sources) and the welfare (poverty and food insecurity) effect of livelihood diversification on household in the Eastern Cape Province of South Africa. Indicators of poverty and food security were computed using Multidimensional Poverty Index (MPI) and FANTA’s Household Dietary Diversity Scores (HDDS). The study relied on data obtained from the Nation-wide annual General household Survey carried out in 2014 having 3033 households sampled from the Eastern Cape Province of South Africa. Data were analyzed using descriptive statistics, Poisson regression, Tobit regression and logistic regression models. The result of the Multidimensional Poverty Index headcount revealed that while majority (71.28 percent) of the households are not multidimensionaly poor, 20.51 percent, 6.89 percent and 1.32 percent are vulnerable to multidimensional poverty, multidimensionaly poor and severely multidimensionaly poor respectively. The study also revealed that while there is a significant differences between multidimensional poverty status in the both rural and urban area, there is no much differences when considering the gender of the household head. This indicates that poverty is still a rural phenomenon in the Province. Furthermore, the largest contributor (dimension and indicators) to household multidimensional poverty in the Province is standard of living dimension and specific indicator are the fuels use for cooking, water and space heating, toilet system, dwelling and asset accumulation are the most areas of highest deprivation. The household dietary diversity score show that household have a diverse diet with a mean score of 6.9; however the diversity is skewed toward food groups that do not give expected nutritional diets for a healthy and an economically active life. In General pulse diet and vegetables (spinach and wild green leaves) are least consumed in the province. Consumption of fruit is shown to be less consumed in the rural area as compared to the urban area. Descriptive analysis of livelihood diversification among households in the province revealed that majority of households are not diversified. Poisson regression estimate produced a good fit shown by the statistical insignificance of the deviance good of fit (p=1.09). Age of household head, population group of the head, education attainment of the head, engagement in agriculture, recipient of remittance and number of economic active member of the household) were found to be statistically significant (p<0.01) and were found to influence the probability of a household diversifying their livelihood base in the study area. The result of the Tobit regression on effect of livelihood diversification and other household socio-economic characteristics on household poverty suggest livelihood diversification has no statistically significant effect on the probability of being poor in the study area. Other variables found to influence poverty are, household head’s gender (male), age, education, employment status, access to electricity, engagement in agriculture, salary earning, economic active size of household and asset score) were found to be significantly (p<0.01) to influencing multidimensional poverty of the poor households. The result of the logistic regression indicates that livelihood diversification has no significant effect on the probability of a household being poor. Gender of head, age of household head, education attainment of the head, access to electricity, engagement in agriculture, recipients of pension, number of economic active and living in urban area were also found to be statistically significant in influencing household food insecurity in the province. The findings illustrates that livelihood diversification may not be relevant for household welfare in the case of South Africa. However promoting livelihood diversification remain imperative for household welfare in the South Africa in the long-run. It further illustrate that gender of head, education, access to electricity, home agriculture are imperative for the improvement of household welfare. Hence the study recommends policy relating to conditional granting of cash grant support, intensification of rural development programmes, education affordable and accessible at all level and support home stead or subsistence agriculture.
- Full Text:
- Date Issued: 2017
- Authors: Megbowon, Ebenezer Toyin
- Date: 2017
- Subjects: Food supply -- South Africa -- Eastern Cape Poverty -- South Africa -- Eastern Cape Households -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/13086 , vital:39464
- Description: Livelihood diversification have been thought to be a rural issue where agriculture is the main source of income, however in an era of dwindling global and national economic situations, livelihood diversification have been seen to be prominent among urban dwellers as well although literatures have focused more on rural households. There is also a growing evidence in literature showing that livelihood diversification is indispensable for improving household welfare. This study adopts the sustainable livelihood framework to investigate the pattern and determinants of livelihood diversification (number of income sources) and the welfare (poverty and food insecurity) effect of livelihood diversification on household in the Eastern Cape Province of South Africa. Indicators of poverty and food security were computed using Multidimensional Poverty Index (MPI) and FANTA’s Household Dietary Diversity Scores (HDDS). The study relied on data obtained from the Nation-wide annual General household Survey carried out in 2014 having 3033 households sampled from the Eastern Cape Province of South Africa. Data were analyzed using descriptive statistics, Poisson regression, Tobit regression and logistic regression models. The result of the Multidimensional Poverty Index headcount revealed that while majority (71.28 percent) of the households are not multidimensionaly poor, 20.51 percent, 6.89 percent and 1.32 percent are vulnerable to multidimensional poverty, multidimensionaly poor and severely multidimensionaly poor respectively. The study also revealed that while there is a significant differences between multidimensional poverty status in the both rural and urban area, there is no much differences when considering the gender of the household head. This indicates that poverty is still a rural phenomenon in the Province. Furthermore, the largest contributor (dimension and indicators) to household multidimensional poverty in the Province is standard of living dimension and specific indicator are the fuels use for cooking, water and space heating, toilet system, dwelling and asset accumulation are the most areas of highest deprivation. The household dietary diversity score show that household have a diverse diet with a mean score of 6.9; however the diversity is skewed toward food groups that do not give expected nutritional diets for a healthy and an economically active life. In General pulse diet and vegetables (spinach and wild green leaves) are least consumed in the province. Consumption of fruit is shown to be less consumed in the rural area as compared to the urban area. Descriptive analysis of livelihood diversification among households in the province revealed that majority of households are not diversified. Poisson regression estimate produced a good fit shown by the statistical insignificance of the deviance good of fit (p=1.09). Age of household head, population group of the head, education attainment of the head, engagement in agriculture, recipient of remittance and number of economic active member of the household) were found to be statistically significant (p<0.01) and were found to influence the probability of a household diversifying their livelihood base in the study area. The result of the Tobit regression on effect of livelihood diversification and other household socio-economic characteristics on household poverty suggest livelihood diversification has no statistically significant effect on the probability of being poor in the study area. Other variables found to influence poverty are, household head’s gender (male), age, education, employment status, access to electricity, engagement in agriculture, salary earning, economic active size of household and asset score) were found to be significantly (p<0.01) to influencing multidimensional poverty of the poor households. The result of the logistic regression indicates that livelihood diversification has no significant effect on the probability of a household being poor. Gender of head, age of household head, education attainment of the head, access to electricity, engagement in agriculture, recipients of pension, number of economic active and living in urban area were also found to be statistically significant in influencing household food insecurity in the province. The findings illustrates that livelihood diversification may not be relevant for household welfare in the case of South Africa. However promoting livelihood diversification remain imperative for household welfare in the South Africa in the long-run. It further illustrate that gender of head, education, access to electricity, home agriculture are imperative for the improvement of household welfare. Hence the study recommends policy relating to conditional granting of cash grant support, intensification of rural development programmes, education affordable and accessible at all level and support home stead or subsistence agriculture.
- Full Text:
- Date Issued: 2017
Exploring the role of corrective feedback in helping Grade 8 learners to improve the accuracy of their written English: an action research case study
- Authors: Miranda, Zoachina Nangobe
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2072 , http://hdl.handle.net/10962/d1021167
- Description: This action research study explored and analysed the role of teacher corrective feedback in helping Grade 8 learners to improve the accuracy of their written English as their second language. Therefore, the goals of this study were to examine the kind of language errors my grade 8 learners’ made in their writing, to find out whether these errors could be categorized linguistically, and to determine if they were errors, mistakes or lapses. The study further analysed how learners responded to my feedback, and also determined which feedback strategies worked best to help my learners deal with their errors, mistakes or lapses. This study set out to look at six learners from one Grade 8 class of 40 learners. The data were gathered from six written essay scripts, and each learner wrote four essay draft revisions. The learners’ written essays were analysed by means of checklists in order to identify the types and patterns of errors made. Errors such as punctuation, past tense verbs, spelling and vocabulary were identified, analysed and categorized to provide insights into reasons underlying the instances in which they were committed. The findings of this study showed that factors underlying learners’ written errors included mother-tongue interference, overgeneralization, fossilization, translation, lack of concentration, and carelessness. The findings further showed that corrective feedback on learners’ draft revisions provided them with extensive exposure and practice in English, enabled them to internalize language rules, and reduced the tendency to commit errors in their writing. The findings further suggest that procedures such as multiple-draft activities, indirect feedback, direct feedback, focused corrective feedback, error correction and written feedback with explicit corrective comments improved their levels of writing. Furthermore, putting these procedures into practice and reflecting critically on how to apply them helped enrich my own teaching practices and development in relation to the provision of corrective feedback to improve accuracy in learners’ writing. The findings are discussed in the context of the related literature. This study should be read by ESL teacher-trainers, ESL teachers, ESL student-teachers and ESL learners/students in general.
- Full Text:
- Date Issued: 2016
- Authors: Miranda, Zoachina Nangobe
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2072 , http://hdl.handle.net/10962/d1021167
- Description: This action research study explored and analysed the role of teacher corrective feedback in helping Grade 8 learners to improve the accuracy of their written English as their second language. Therefore, the goals of this study were to examine the kind of language errors my grade 8 learners’ made in their writing, to find out whether these errors could be categorized linguistically, and to determine if they were errors, mistakes or lapses. The study further analysed how learners responded to my feedback, and also determined which feedback strategies worked best to help my learners deal with their errors, mistakes or lapses. This study set out to look at six learners from one Grade 8 class of 40 learners. The data were gathered from six written essay scripts, and each learner wrote four essay draft revisions. The learners’ written essays were analysed by means of checklists in order to identify the types and patterns of errors made. Errors such as punctuation, past tense verbs, spelling and vocabulary were identified, analysed and categorized to provide insights into reasons underlying the instances in which they were committed. The findings of this study showed that factors underlying learners’ written errors included mother-tongue interference, overgeneralization, fossilization, translation, lack of concentration, and carelessness. The findings further showed that corrective feedback on learners’ draft revisions provided them with extensive exposure and practice in English, enabled them to internalize language rules, and reduced the tendency to commit errors in their writing. The findings further suggest that procedures such as multiple-draft activities, indirect feedback, direct feedback, focused corrective feedback, error correction and written feedback with explicit corrective comments improved their levels of writing. Furthermore, putting these procedures into practice and reflecting critically on how to apply them helped enrich my own teaching practices and development in relation to the provision of corrective feedback to improve accuracy in learners’ writing. The findings are discussed in the context of the related literature. This study should be read by ESL teacher-trainers, ESL teachers, ESL student-teachers and ESL learners/students in general.
- Full Text:
- Date Issued: 2016
A case study of oral linguistic error-treatment in second language classrooms where English is the medium of instruction
- Authors: Mntambo, Nomawabo
- Date: 1995
- Subjects: Second language acquisition Language and languages -- Study and teaching English language -- Errors of usage
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1439 , http://hdl.handle.net/10962/d1003320
- Description: One of the issues that have been debated at length in second language acquisition research circles is that of error-feedback and its desirability. Although there is as yet no conclusive evidence concerning its effectiveness in contributing towards the acquisition of a second language, a number of studies that have been conducted bear evidence to its desirability in L2 classrooms. This research then, was concerned with the way teachers of content subjects reacted to their learners' linguistically erroneous responses during oral interaction in their classes. The participants were four teachers who, with their pupils, are second language speakers of English . Three of these were content subject teachers while the fourth one teaches English. The data was collected from a class of Std 5 pupils in a rural school in the Eastern Cape where the lessons of these teachers were observed and audio-taped. Subsequently some of them were transcribed and analysed. The analysis of the data revealed that teachers in content subject classes, who teach through the medium of English showed more concern for content than for linguistic errors despite the fact that they are expected to extend the pupils' chances of second language acquisition.
- Full Text:
- Date Issued: 1995
- Authors: Mntambo, Nomawabo
- Date: 1995
- Subjects: Second language acquisition Language and languages -- Study and teaching English language -- Errors of usage
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1439 , http://hdl.handle.net/10962/d1003320
- Description: One of the issues that have been debated at length in second language acquisition research circles is that of error-feedback and its desirability. Although there is as yet no conclusive evidence concerning its effectiveness in contributing towards the acquisition of a second language, a number of studies that have been conducted bear evidence to its desirability in L2 classrooms. This research then, was concerned with the way teachers of content subjects reacted to their learners' linguistically erroneous responses during oral interaction in their classes. The participants were four teachers who, with their pupils, are second language speakers of English . Three of these were content subject teachers while the fourth one teaches English. The data was collected from a class of Std 5 pupils in a rural school in the Eastern Cape where the lessons of these teachers were observed and audio-taped. Subsequently some of them were transcribed and analysed. The analysis of the data revealed that teachers in content subject classes, who teach through the medium of English showed more concern for content than for linguistic errors despite the fact that they are expected to extend the pupils' chances of second language acquisition.
- Full Text:
- Date Issued: 1995
Nature of spelling errors of grade three isiXhosa background learners in English first additional language
- Authors: Mpiti, Thandiswa
- Date: 2012
- Subjects: Language and languages -- Orthography and spelling , Spelling errors -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16175 , http://hdl.handle.net/10353/472 , Language and languages -- Orthography and spelling , Spelling errors -- South Africa -- Eastern Cape
- Description: A central concern of education internationally and in South Africa is to develop children's literacy skill. However a literacy crisis exists in spite of efforts to counter this. Some researchers have explored the issue of literacy focusing on second language learners‟ spelling in English as Additional Language. There is, however, insufficient literature that looks into spelling experiences of isiXhosa background learners in English First Additional Language. Hence this study investigated the nature of spelling errors of Grade three isiXhosa background learners in English First Additional Language. In understanding the nature of spelling errors of Grade three isiXhosa background learners, the features of words that learners find difficult to spell and the features of words that learners find easy to spell were investigated. Moreover, learners' barriers in acquiring spelling skills in English First Additional Language and teacher practices for teaching spelling were examined. In exploring these issues the study adopted a qualitative approach in order to ensure reliability and validity of the study. The data gathering process was in the form of semi-structured interviews, classroom observations and document analysis. One isiXhosa medium primary school in a Black Township in Buffalo City Municipality in the East London District was purposively selected to form the context of the study. In this school English is taught as a subject in grade three. Participants were eight grade three learners and one Grade three class teacher who teaches these learners. The findings of the study revealed that learners with an isiXhosa background seemed to be struggling with understanding basic English words and terms. This is exacerbated by the fact that the learners seemed to struggle to understand the rules of the English language. The words that learners find difficulties in to spell in English Second Language were diagraphs. Barriers to spelling were influenced, among other issues, by learners' pronunciation and their heavy reliance on their mother tongue.
- Full Text:
- Date Issued: 2012
- Authors: Mpiti, Thandiswa
- Date: 2012
- Subjects: Language and languages -- Orthography and spelling , Spelling errors -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16175 , http://hdl.handle.net/10353/472 , Language and languages -- Orthography and spelling , Spelling errors -- South Africa -- Eastern Cape
- Description: A central concern of education internationally and in South Africa is to develop children's literacy skill. However a literacy crisis exists in spite of efforts to counter this. Some researchers have explored the issue of literacy focusing on second language learners‟ spelling in English as Additional Language. There is, however, insufficient literature that looks into spelling experiences of isiXhosa background learners in English First Additional Language. Hence this study investigated the nature of spelling errors of Grade three isiXhosa background learners in English First Additional Language. In understanding the nature of spelling errors of Grade three isiXhosa background learners, the features of words that learners find difficult to spell and the features of words that learners find easy to spell were investigated. Moreover, learners' barriers in acquiring spelling skills in English First Additional Language and teacher practices for teaching spelling were examined. In exploring these issues the study adopted a qualitative approach in order to ensure reliability and validity of the study. The data gathering process was in the form of semi-structured interviews, classroom observations and document analysis. One isiXhosa medium primary school in a Black Township in Buffalo City Municipality in the East London District was purposively selected to form the context of the study. In this school English is taught as a subject in grade three. Participants were eight grade three learners and one Grade three class teacher who teaches these learners. The findings of the study revealed that learners with an isiXhosa background seemed to be struggling with understanding basic English words and terms. This is exacerbated by the fact that the learners seemed to struggle to understand the rules of the English language. The words that learners find difficulties in to spell in English Second Language were diagraphs. Barriers to spelling were influenced, among other issues, by learners' pronunciation and their heavy reliance on their mother tongue.
- Full Text:
- Date Issued: 2012
Participation and economic empowerment of the youth in resettlement areas in Zimbabwe: the case of the agricultural sector in Mutare district
- Authors: Mushunje,Fungai
- Date: 2015
- Subjects: Rural development -- Zimbabwe Community development -- Zimbabwe Agricultural development projects -- Zimbabwe Agriculture -- Economic aspects -- Zimbabwe
- Language: English
- Type: Thesis , Masters , M Soc Sci
- Identifier: http://hdl.handle.net/10353/1568 , vital:27471
- Description: This study sought to probe the exclusion of young people from the land distribution process and therefore, overlooking their economic empowerment and development. The focus was on economic empowerment of the youth to participate meaningfully or undertake agricultural initiatives in the resettlement areas of Mutare district in Zimbabwe; youths’ ownership and control of economic assets. The data was gathered using a case study research design with the qualitative method being the main research approach.
- Full Text:
- Date Issued: 2015
- Authors: Mushunje,Fungai
- Date: 2015
- Subjects: Rural development -- Zimbabwe Community development -- Zimbabwe Agricultural development projects -- Zimbabwe Agriculture -- Economic aspects -- Zimbabwe
- Language: English
- Type: Thesis , Masters , M Soc Sci
- Identifier: http://hdl.handle.net/10353/1568 , vital:27471
- Description: This study sought to probe the exclusion of young people from the land distribution process and therefore, overlooking their economic empowerment and development. The focus was on economic empowerment of the youth to participate meaningfully or undertake agricultural initiatives in the resettlement areas of Mutare district in Zimbabwe; youths’ ownership and control of economic assets. The data was gathered using a case study research design with the qualitative method being the main research approach.
- Full Text:
- Date Issued: 2015
The control of a multi-variable industrial process, by means of intelligent technology
- Authors: Naidoo, Puramanathan
- Date: 2001
- Subjects: Fuzzy systems , Intelligent control systems
- Language: English
- Type: Thesis , Masters , MTech (Electrical Engineering)
- Identifier: vital:10813 , http://hdl.handle.net/10948/48 , Fuzzy systems , Intelligent control systems
- Description: Conventional control systems express control solutions by means of expressions, usually mathematically based. In order to completely express the control solution, a vast amount of data is required. In contrast, knowledge-based solutions require far less plant data and mathematical expression. This reduces development time proportionally. In addition, because this type of processing does not require involved calculations, processing speed is increased, since rule process is separate and all processes can be performed simultaneously. These results in improved product quality, better plant efficiency, simplified process, etc. Within this project, conventional PID control has already been implemented, with the control parameter adjustment and loop tuning being problematic. This is mainly due to a number of external parameters that affects the stability of the process. In maintaining a consistent temperature, for example, the steam flow rate varies, the hot well temperature varies, the ambient may temperature vary. Another contributing factor, the time delay, also affects the optimization of the system, due to the fact that temperature measurement is based on principle of absorption. The normal practice in industry to avoid an unstable control condition is to have an experienced operator to switch the controller to manual, and make adjustments. After obtaining the desired PV, the controller is switched back to automatic. This research project focuses on eliminating this time loss, by implementing a knowledge-based controller, for intelligent decision-making. A FLC design tool, which allows full interaction, whilst designing the control algorithm, was used to optimize the control system. The design tool executed on a PC is connected to a PLC, which in turn is successfully integrated into the process plant.
- Full Text:
- Date Issued: 2001
- Authors: Naidoo, Puramanathan
- Date: 2001
- Subjects: Fuzzy systems , Intelligent control systems
- Language: English
- Type: Thesis , Masters , MTech (Electrical Engineering)
- Identifier: vital:10813 , http://hdl.handle.net/10948/48 , Fuzzy systems , Intelligent control systems
- Description: Conventional control systems express control solutions by means of expressions, usually mathematically based. In order to completely express the control solution, a vast amount of data is required. In contrast, knowledge-based solutions require far less plant data and mathematical expression. This reduces development time proportionally. In addition, because this type of processing does not require involved calculations, processing speed is increased, since rule process is separate and all processes can be performed simultaneously. These results in improved product quality, better plant efficiency, simplified process, etc. Within this project, conventional PID control has already been implemented, with the control parameter adjustment and loop tuning being problematic. This is mainly due to a number of external parameters that affects the stability of the process. In maintaining a consistent temperature, for example, the steam flow rate varies, the hot well temperature varies, the ambient may temperature vary. Another contributing factor, the time delay, also affects the optimization of the system, due to the fact that temperature measurement is based on principle of absorption. The normal practice in industry to avoid an unstable control condition is to have an experienced operator to switch the controller to manual, and make adjustments. After obtaining the desired PV, the controller is switched back to automatic. This research project focuses on eliminating this time loss, by implementing a knowledge-based controller, for intelligent decision-making. A FLC design tool, which allows full interaction, whilst designing the control algorithm, was used to optimize the control system. The design tool executed on a PC is connected to a PLC, which in turn is successfully integrated into the process plant.
- Full Text:
- Date Issued: 2001
Acquiring academic reading practices in History I : an ethnographic study of a group of foundation year students at Rhodes University
- Authors: Niven, Penelope Mary
- Date: 2013-05-29
- Subjects: Compensatory education -- South Africa English language -- Study and teaching (Higher) -- Foreign speakers History -- Study and teaching (Higher) -- Foreign speakers College students, Black -- South Africa Black people -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2380 , http://hdl.handle.net/10962/d1007860
- Description: This thesis reports on a critical, ethnographic investigation into the reading practices of a group of 14 foundation year students at Rhodes University in 2002. The university had identified all the student-participants as 'underprepared' for university learning: they were from poor, socio-economic backgrounds, used English as an additional language, and had been educated in township or rural schools. Using the Socio-cultural model of literacy (Heath, 1984; Gee, 1990 & Street, 1993), the study explores the culturally-shaped attitudes and assumptions about reading that the students brought with them into a tertiary learning context from their homes, communities and schools. It reports on their subsequent efforts to become academic readers in the disciplinary context of History. Framing Theory (Reid and MacLachlan, 1994) was employed to analyse the kinds of matches and mismatches that arose between the students' frames about the nature and purpose of reading, and those implicitly accepted as normative by teachers in the History department. It accounts for the students' difficulties in achieving epistemological access in terms of a conflict of frames: both the students and their teachers usually failed to recognise each others' constructions about the nature and purpose of 'reading for a degree'. The study'S critical purpose required that its potential for generating emancipatory consequences needed to be investigated. Thus the study reports on how both sets of participants began to reframe their understanding of academic reading, by describing the ways in which they reflected on the findings in the final stages of the research process. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Authors: Niven, Penelope Mary
- Date: 2013-05-29
- Subjects: Compensatory education -- South Africa English language -- Study and teaching (Higher) -- Foreign speakers History -- Study and teaching (Higher) -- Foreign speakers College students, Black -- South Africa Black people -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2380 , http://hdl.handle.net/10962/d1007860
- Description: This thesis reports on a critical, ethnographic investigation into the reading practices of a group of 14 foundation year students at Rhodes University in 2002. The university had identified all the student-participants as 'underprepared' for university learning: they were from poor, socio-economic backgrounds, used English as an additional language, and had been educated in township or rural schools. Using the Socio-cultural model of literacy (Heath, 1984; Gee, 1990 & Street, 1993), the study explores the culturally-shaped attitudes and assumptions about reading that the students brought with them into a tertiary learning context from their homes, communities and schools. It reports on their subsequent efforts to become academic readers in the disciplinary context of History. Framing Theory (Reid and MacLachlan, 1994) was employed to analyse the kinds of matches and mismatches that arose between the students' frames about the nature and purpose of reading, and those implicitly accepted as normative by teachers in the History department. It accounts for the students' difficulties in achieving epistemological access in terms of a conflict of frames: both the students and their teachers usually failed to recognise each others' constructions about the nature and purpose of 'reading for a degree'. The study'S critical purpose required that its potential for generating emancipatory consequences needed to be investigated. Thus the study reports on how both sets of participants began to reframe their understanding of academic reading, by describing the ways in which they reflected on the findings in the final stages of the research process. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
Local versus international celebrity endorsement credibility and consumer purchase intentions in the cosmetic industry
- Authors: Nyamakanga,Nyarai Faith
- Date: 2017
- Subjects: Consumer behavior -- South Africa -- Eastern Cape Purchasing
- Language: English
- Type: Thesis , Masters , MCom (Business Management)
- Identifier: http://hdl.handle.net/10353/13891 , vital:39724
- Description: In order for a firm to create and improve the image of its product or services, celebrity endorsement is considered to be a highly effective tool which can influence consumer behaviour. This is evident in the increasing number of marketers who are harnessing the power of celebrities to endorse their products. However, for endorsement to be successful the celebrity endorsers must be viewed as credible by consumers. It has been shown that there are three dimensions that determine the level of credibility in celebrity endorsements: trustworthiness, expertise and attractiveness. The purpose of this study was to analyse the effect of the credibility of local versus international celebrity endorsement in advertising on consumers’ intention to purchase cosmetic products in a South African (SA) context. This study focused on the cosmetic industry as it is an industry that relies heavily on endorsement to advertise and attract consumers to purchase products. Firms in this industry need to be aware of the criteria when selecting celebrity endorsers such as whether to hire an international or local celebrity as brand representatives. Thus, the researcher aimed to determine whether there is a difference in terms of credibility between local and international celebrity endorsers as viewed by SA consumers with respect to the cosmetic industry. The credibility of the celebrities was rated using the credibility scale developed by Ohanian (1990). The credibility scale rates the credibility of celebrities using the three factors of attractiveness, trustworthiness and expertise. Two models were proposed for the study, one testing the credibility of local endorsers whilst the other testing the credibility of international endorsers. These dimensions were hypothetically by the researcher to determine their effect on consumer purchase intention. To hypothetically test the dimensions, a quantitative approach and design were used as methods of gathering and analysing data. A total of 237 selfadministered questionnaires were distributed at a University in the Eastern Cape (EC). Analysis and interpretation of findings was done using the descriptive statistical measures with the help of Statistical Package for Social Scientists. The inferential statistics were analysed using the multiple regression analysis. Multiple regression analysis was used to analyse the statistical significance of the model, which was found to be statistically significant for both models. The regression coefficients where then used to determine the strength of the relationship between the independent variables and the dependent variable for each model. iii The study concluded that consumers perceive both local and international celebrity endorsers as credible and are influenced to purchase cosmetics products because of perceived credibility. The data analysis showed that local celebrity endorsers are perceived as more credible than international celebrity endorsers within the context of marketing cosmetic products in the South African industry. This means that consumers can be easily persuaded to purchase cosmetics products when marketed using locally based celebrity endorsers. The outcome of the research informatively helps managers to carefully select the endorser that will be able to create awareness, attract and retain loyal consumers through the advertisement. Inasmuch as marketers have to endorse local celebrities, it is also safe for them to consider international celebrity endorsers as their credibility to a lesser extent influences consumers to purchase products. However, marketers need to define and determine the target market, and select an endorser that aligns with the characteristics of the market. One of the study’s objectives was to test which of the three dimensions mentioned earlier had a stronger impact on consumer’s intention to purchase for both local and international endorsers. The attractiveness dimension indicated a much stronger influence on consumer purchase intention in comparison to the other dimensions for local celebrities and was found to be statistically significant. As the cosmetic industry is a beauty industry, it is recommended that firms in the industry use local attractive endorsers to market the cosmetic products. However, the endorser must also be trustworthy as it ranks second in terms of influence to intention to purchase. On the other hand the expertise dimension in international celebrities had the highest coefficient score indicating a greater strength and influence on consumer purchase intention and was the only dimension statistically significant. It is recommended that marketers in the cosmetic industry could employ international celebrities as endorsers by considering their level of expertise and experience in the cosmetics and other industries such the fashion industry, as well as previous advertisements they would have endorsed. The trend is often for marketers to consider, select and endorse the most attractive celebrities especially in the cosmetic industry, but this research has indicated that attractiveness is not the most important dimension that marketers should be using in selecting international celebrity endorsers. If marketers within a firm have adopted international celebrity endorsement, it is recommended they use it within a target market that is less price-sensitive whereby the high prices charged can cover the endorsement costs. It was also suggested that marketers can use international celebrity endorsers with expertise when introducing new products as consumers would need a iv lot of information on the product. Local celebrity endorsers would then be used when the product has been established
- Full Text:
- Date Issued: 2017
- Authors: Nyamakanga,Nyarai Faith
- Date: 2017
- Subjects: Consumer behavior -- South Africa -- Eastern Cape Purchasing
- Language: English
- Type: Thesis , Masters , MCom (Business Management)
- Identifier: http://hdl.handle.net/10353/13891 , vital:39724
- Description: In order for a firm to create and improve the image of its product or services, celebrity endorsement is considered to be a highly effective tool which can influence consumer behaviour. This is evident in the increasing number of marketers who are harnessing the power of celebrities to endorse their products. However, for endorsement to be successful the celebrity endorsers must be viewed as credible by consumers. It has been shown that there are three dimensions that determine the level of credibility in celebrity endorsements: trustworthiness, expertise and attractiveness. The purpose of this study was to analyse the effect of the credibility of local versus international celebrity endorsement in advertising on consumers’ intention to purchase cosmetic products in a South African (SA) context. This study focused on the cosmetic industry as it is an industry that relies heavily on endorsement to advertise and attract consumers to purchase products. Firms in this industry need to be aware of the criteria when selecting celebrity endorsers such as whether to hire an international or local celebrity as brand representatives. Thus, the researcher aimed to determine whether there is a difference in terms of credibility between local and international celebrity endorsers as viewed by SA consumers with respect to the cosmetic industry. The credibility of the celebrities was rated using the credibility scale developed by Ohanian (1990). The credibility scale rates the credibility of celebrities using the three factors of attractiveness, trustworthiness and expertise. Two models were proposed for the study, one testing the credibility of local endorsers whilst the other testing the credibility of international endorsers. These dimensions were hypothetically by the researcher to determine their effect on consumer purchase intention. To hypothetically test the dimensions, a quantitative approach and design were used as methods of gathering and analysing data. A total of 237 selfadministered questionnaires were distributed at a University in the Eastern Cape (EC). Analysis and interpretation of findings was done using the descriptive statistical measures with the help of Statistical Package for Social Scientists. The inferential statistics were analysed using the multiple regression analysis. Multiple regression analysis was used to analyse the statistical significance of the model, which was found to be statistically significant for both models. The regression coefficients where then used to determine the strength of the relationship between the independent variables and the dependent variable for each model. iii The study concluded that consumers perceive both local and international celebrity endorsers as credible and are influenced to purchase cosmetics products because of perceived credibility. The data analysis showed that local celebrity endorsers are perceived as more credible than international celebrity endorsers within the context of marketing cosmetic products in the South African industry. This means that consumers can be easily persuaded to purchase cosmetics products when marketed using locally based celebrity endorsers. The outcome of the research informatively helps managers to carefully select the endorser that will be able to create awareness, attract and retain loyal consumers through the advertisement. Inasmuch as marketers have to endorse local celebrities, it is also safe for them to consider international celebrity endorsers as their credibility to a lesser extent influences consumers to purchase products. However, marketers need to define and determine the target market, and select an endorser that aligns with the characteristics of the market. One of the study’s objectives was to test which of the three dimensions mentioned earlier had a stronger impact on consumer’s intention to purchase for both local and international endorsers. The attractiveness dimension indicated a much stronger influence on consumer purchase intention in comparison to the other dimensions for local celebrities and was found to be statistically significant. As the cosmetic industry is a beauty industry, it is recommended that firms in the industry use local attractive endorsers to market the cosmetic products. However, the endorser must also be trustworthy as it ranks second in terms of influence to intention to purchase. On the other hand the expertise dimension in international celebrities had the highest coefficient score indicating a greater strength and influence on consumer purchase intention and was the only dimension statistically significant. It is recommended that marketers in the cosmetic industry could employ international celebrities as endorsers by considering their level of expertise and experience in the cosmetics and other industries such the fashion industry, as well as previous advertisements they would have endorsed. The trend is often for marketers to consider, select and endorse the most attractive celebrities especially in the cosmetic industry, but this research has indicated that attractiveness is not the most important dimension that marketers should be using in selecting international celebrity endorsers. If marketers within a firm have adopted international celebrity endorsement, it is recommended they use it within a target market that is less price-sensitive whereby the high prices charged can cover the endorsement costs. It was also suggested that marketers can use international celebrity endorsers with expertise when introducing new products as consumers would need a iv lot of information on the product. Local celebrity endorsers would then be used when the product has been established
- Full Text:
- Date Issued: 2017
A computer-controlled tracking system
- Authors: Oberem, Graham Edmund
- Date: 1979
- Subjects: Artificial satellites -- Tracking
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5437 , http://hdl.handle.net/10962/d1001990
- Description: A computer-controlled tracking system has been designed and constructed for the two metre antenna of the 22 GHz radio telescope at Rhodes University. The control system has been tested and its step response has been analysed with a view to response time optimization. Computer programs for tracking the sun and the moon have been written. Initial results of tracking the sun have revealed linearity and temperature stability problems. These problems have been investigated and suggestions have been made as to how they might be removed
- Full Text:
- Date Issued: 1979
- Authors: Oberem, Graham Edmund
- Date: 1979
- Subjects: Artificial satellites -- Tracking
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5437 , http://hdl.handle.net/10962/d1001990
- Description: A computer-controlled tracking system has been designed and constructed for the two metre antenna of the 22 GHz radio telescope at Rhodes University. The control system has been tested and its step response has been analysed with a view to response time optimization. Computer programs for tracking the sun and the moon have been written. Initial results of tracking the sun have revealed linearity and temperature stability problems. These problems have been investigated and suggestions have been made as to how they might be removed
- Full Text:
- Date Issued: 1979
Issues and challenges facing school libraries: a case study of selected primary schools in Gauteng Province, South Africa
- Paton-Ash, Margaret Sanderson
- Authors: Paton-Ash, Margaret Sanderson
- Date: 2012
- Subjects: School libraries -- South Africa -- Gauteng Libraries and state -- South Africa -- Gauteng Libraries and schools -- South Africa -- Gauteng Library planning -- South Africa -- Gauteng Libraries and education -- South Africa -- Gauteng
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1660 , http://hdl.handle.net/10962/d1003543
- Description: Fewer than 8% of schools in South Africa have functioning libraries. There is no national policy for school libraries which compels School Governing Bodies and principals to have a library in their schools. This qualitative study, based on grounded theory, investigated ten primary schools in Gauteng that had libraries, or were in the process of setting up a library with the intention of providing a rich description of the issues and challenges facing these schools. The schools were chosen on the basis of location (Soweto and Johannesburg), and the school fees that were paid in a continuum from low/no fee paying schools to the fee paying ex Model-C schools. The resourcing of the school library, the operation of the school library and the role of the library were examined. The findings highlight the lack of a national policy, of school library posts, the theft of computers as a result of the lack of security, as well as the lack of understanding by teachers of the role the library in teaching and learning. Furthermore, there appears to be a disjuncture between the trends evident in the international literature on school libraries and what is actually happening in the primary school libraries in my study. Most significantly low/no fee paying schools with libraries were the exception and those that did have libraries were as a result of the enthusiasm and efforts of one or two individuals with the backing of the principal. Ex-Model C schools had the advantage in terms of the provision and staffing of school libraries as they had the funds to support them and, in some cases, a school librarian, provided that the principal supported the idea of a school library. In all the schools, the belief in the importance of the library regarding reading and literacy was the main motivating factor in establishing or maintaining the school library. A growing public awareness of the value of school libraries was an encouraging trend that emerged from my study.
- Full Text:
- Date Issued: 2012
- Authors: Paton-Ash, Margaret Sanderson
- Date: 2012
- Subjects: School libraries -- South Africa -- Gauteng Libraries and state -- South Africa -- Gauteng Libraries and schools -- South Africa -- Gauteng Library planning -- South Africa -- Gauteng Libraries and education -- South Africa -- Gauteng
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1660 , http://hdl.handle.net/10962/d1003543
- Description: Fewer than 8% of schools in South Africa have functioning libraries. There is no national policy for school libraries which compels School Governing Bodies and principals to have a library in their schools. This qualitative study, based on grounded theory, investigated ten primary schools in Gauteng that had libraries, or were in the process of setting up a library with the intention of providing a rich description of the issues and challenges facing these schools. The schools were chosen on the basis of location (Soweto and Johannesburg), and the school fees that were paid in a continuum from low/no fee paying schools to the fee paying ex Model-C schools. The resourcing of the school library, the operation of the school library and the role of the library were examined. The findings highlight the lack of a national policy, of school library posts, the theft of computers as a result of the lack of security, as well as the lack of understanding by teachers of the role the library in teaching and learning. Furthermore, there appears to be a disjuncture between the trends evident in the international literature on school libraries and what is actually happening in the primary school libraries in my study. Most significantly low/no fee paying schools with libraries were the exception and those that did have libraries were as a result of the enthusiasm and efforts of one or two individuals with the backing of the principal. Ex-Model C schools had the advantage in terms of the provision and staffing of school libraries as they had the funds to support them and, in some cases, a school librarian, provided that the principal supported the idea of a school library. In all the schools, the belief in the importance of the library regarding reading and literacy was the main motivating factor in establishing or maintaining the school library. A growing public awareness of the value of school libraries was an encouraging trend that emerged from my study.
- Full Text:
- Date Issued: 2012