Contributions of women to family Business as evidence in the Eastern Cape
- Authors: Billson, Leonie
- Date: 2011
- Subjects: Family-owned business enterprises -- South Africa -- Eastern Cape , Businesswomen -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8585 , http://hdl.handle.net/10948/1608 , Family-owned business enterprises -- South Africa -- Eastern Cape , Businesswomen -- South Africa -- Eastern Cape
- Description: Family businesses are operating throughout the world and suggested to be the predominant way of doing business. This is also true in South Africa with its unique challenges and informal sector providing work to many South Africans not able to find work in the formal sector. Women operating in the corporate environment have traditionally encountered challenges in breaking through the glass ceiling in order to be counted as a successful person in her own right. The same scenario seems to be evident in the family Business environment. Women in family business might choose the family business career path as it allows them more flexibility and time to attend to the home and children, but they also face a glass ceiling of another nature and are there other challenges to overcome in order to make their mark in the family business world. This study’s primary objective was to investigate the literature pertaining to women in business and women in family business. Of great importance was to determine what contributions women make in the family business environment allowing them to be successful. In order to answer this question the secondary objectives supported the primary objective of this study and pertained to the difference between men and women in terms of leadership style and execution of their personalities in business. The inherent strengths and weaknesses displayed by both male and females in the family business environment are investigated in order to link this to their management execution. v A questionnaire was developed to do an empirical study on respondents as identified in the Nelson Mandela Metropole and greater Eastern Cape. The respondents were from varied industries and was selected and interviewed with the support of the questionnaire structure as guidance. The results were analysed and certain recommendations were made addressing the primary objective. Further recommendations were made relating to future potential research in this area. An important finding of the research is that women as identified in the Eastern Cape environment still have difficulty in reaching the top. This is true for the corporate world as well as the family business environment. The difficulty might be based in the traditional roles women assume, but in many cases it was found that women are responsible for their downfall or stagnation in the family business environment as women are satisfied to remain in the shadows and do not command their own space and right of existence. Recommendations were made based on the advice of some of the female respondents which can assist in women stepping up to the role they should take up. Some of the advice given can be used as a best practice in future research of this nature.
- Full Text:
- Date Issued: 2011
- Authors: Billson, Leonie
- Date: 2011
- Subjects: Family-owned business enterprises -- South Africa -- Eastern Cape , Businesswomen -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8585 , http://hdl.handle.net/10948/1608 , Family-owned business enterprises -- South Africa -- Eastern Cape , Businesswomen -- South Africa -- Eastern Cape
- Description: Family businesses are operating throughout the world and suggested to be the predominant way of doing business. This is also true in South Africa with its unique challenges and informal sector providing work to many South Africans not able to find work in the formal sector. Women operating in the corporate environment have traditionally encountered challenges in breaking through the glass ceiling in order to be counted as a successful person in her own right. The same scenario seems to be evident in the family Business environment. Women in family business might choose the family business career path as it allows them more flexibility and time to attend to the home and children, but they also face a glass ceiling of another nature and are there other challenges to overcome in order to make their mark in the family business world. This study’s primary objective was to investigate the literature pertaining to women in business and women in family business. Of great importance was to determine what contributions women make in the family business environment allowing them to be successful. In order to answer this question the secondary objectives supported the primary objective of this study and pertained to the difference between men and women in terms of leadership style and execution of their personalities in business. The inherent strengths and weaknesses displayed by both male and females in the family business environment are investigated in order to link this to their management execution. v A questionnaire was developed to do an empirical study on respondents as identified in the Nelson Mandela Metropole and greater Eastern Cape. The respondents were from varied industries and was selected and interviewed with the support of the questionnaire structure as guidance. The results were analysed and certain recommendations were made addressing the primary objective. Further recommendations were made relating to future potential research in this area. An important finding of the research is that women as identified in the Eastern Cape environment still have difficulty in reaching the top. This is true for the corporate world as well as the family business environment. The difficulty might be based in the traditional roles women assume, but in many cases it was found that women are responsible for their downfall or stagnation in the family business environment as women are satisfied to remain in the shadows and do not command their own space and right of existence. Recommendations were made based on the advice of some of the female respondents which can assist in women stepping up to the role they should take up. Some of the advice given can be used as a best practice in future research of this nature.
- Full Text:
- Date Issued: 2011
Coping strategies among female Zimbabwean refugees at the central Methodist church in Johannesburg : a conflict management perspective
- Authors: Bjorknes, Guro Lauvland
- Date: 2011
- Subjects: Central Methodist Church Refugee Community , Church work with refugees , Conflict management , Interpersonal relations
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8188 , http://hdl.handle.net/10948/1424 , Central Methodist Church Refugee Community , Church work with refugees , Conflict management , Interpersonal relations
- Description: This treatise represents an investigation into the coping strategies of female Zimbabwean refugees at the Central Methodist Church (CMC) in Johannesburg. The CMC in Johannesburg includes a non-profit organisation called Ray of Hope that has functioned as a provider of accommodation and emergency refuge at the church since 1997. A vast number of Zimbabweans are moving to adjacent countries as a consequence of the conflict in Zimbabwe and approximately 85 percent of the people that have sought refuge in the CMC in Johannesburg are Zimbabweans that have fled the economic and political conflict in Zimbabwe. Using an interviewing strategy of a sample of 20 female Zimbabwean refugees, conducted at the CMC, the researcher gathered data, indicating that they face various conflicts on a daily basis inside as well as outside the refugee community in the CMC in Johannesburg. An extensive literature review and researcher‟s own observations during hours spent in the refugee community have also contributed to the collection of data. The findings suggest that coping mechanisms have been adopted by the female refugees to deal with the conflicts. Analysis of data was guided by grounded theory approach which allowed key findings about coping mechanisms to surface which encouraged recommendations presented in the conclusion of the treatise.
- Full Text:
- Date Issued: 2011
- Authors: Bjorknes, Guro Lauvland
- Date: 2011
- Subjects: Central Methodist Church Refugee Community , Church work with refugees , Conflict management , Interpersonal relations
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8188 , http://hdl.handle.net/10948/1424 , Central Methodist Church Refugee Community , Church work with refugees , Conflict management , Interpersonal relations
- Description: This treatise represents an investigation into the coping strategies of female Zimbabwean refugees at the Central Methodist Church (CMC) in Johannesburg. The CMC in Johannesburg includes a non-profit organisation called Ray of Hope that has functioned as a provider of accommodation and emergency refuge at the church since 1997. A vast number of Zimbabweans are moving to adjacent countries as a consequence of the conflict in Zimbabwe and approximately 85 percent of the people that have sought refuge in the CMC in Johannesburg are Zimbabweans that have fled the economic and political conflict in Zimbabwe. Using an interviewing strategy of a sample of 20 female Zimbabwean refugees, conducted at the CMC, the researcher gathered data, indicating that they face various conflicts on a daily basis inside as well as outside the refugee community in the CMC in Johannesburg. An extensive literature review and researcher‟s own observations during hours spent in the refugee community have also contributed to the collection of data. The findings suggest that coping mechanisms have been adopted by the female refugees to deal with the conflicts. Analysis of data was guided by grounded theory approach which allowed key findings about coping mechanisms to surface which encouraged recommendations presented in the conclusion of the treatise.
- Full Text:
- Date Issued: 2011
Core self-evaluations, racial evaluation and learning amongst Zulu students at the university of Zululand
- Authors: Dodd Nicole Marguerite
- Date: 2011
- Subjects: Zulu (African people) -- Ethnic identity , Self-evaluation , Ethnicity
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9879 , http://hdl.handle.net/10948/d1008398 , Zulu (African people) -- Ethnic identity , Self-evaluation , Ethnicity
- Description: Core Self-Evaluations [CSE] are a person’s estimation of his/her own worth and ability (Judge & Scott 2009). This in turn, is related to Racial Evaluation which is a person’s internal evaluation of his/her racial identity (Diller, 2010). The Employment Equity Act (55 of 1998) makes provision for the employment of equity candidates who can acquire skills in a reasonable amount of time. This requires individuals to be able to learn and then achieve in outcomes-based assessment. Core Self-Evaluations and Racial Evaluation can have an impact on how individuals perceive themselves, and how they perform in education, training and development (Hanley & Noblit, 2009). This study explored the relationship between Core Self-Evaluation, Racial Evaluation, Learning and Outcomes-Based Assessment using an experimental design. The Core Self-Evaluation scores in this study (n=230) were consistent with levels found internationally (Broucek, 2005). There was positive Racial Evaluation, with a relationship existing between Racial Evaluation and Core Self-Evaluations. This means that part of a person’s identity as an individual is related to Racial Evaluation, with that Racial Evaluation being positive amongst young Zulu students at the University of Zululand. There was a statistically significant, but small correlation between Learning and Core Self- Evaluation and a relationship was also found between CSE and Outcomes-Based Assessment results. When Core Self-Evaluation is higher, Learning tends to be more likely. The same pattern does not hold for Outcomes-Based Assessment results. Among Zulu students, lower CSE is linked to improved Outcomes-Based Assessment results. Racial Evaluation has a small relationship with CSE. However, efforts to remedy apartheid may be directed towards socio-economic development and need not focus on boosting Racial Evaluation when it comes to young Zulu adults.
- Full Text:
- Date Issued: 2011
- Authors: Dodd Nicole Marguerite
- Date: 2011
- Subjects: Zulu (African people) -- Ethnic identity , Self-evaluation , Ethnicity
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9879 , http://hdl.handle.net/10948/d1008398 , Zulu (African people) -- Ethnic identity , Self-evaluation , Ethnicity
- Description: Core Self-Evaluations [CSE] are a person’s estimation of his/her own worth and ability (Judge & Scott 2009). This in turn, is related to Racial Evaluation which is a person’s internal evaluation of his/her racial identity (Diller, 2010). The Employment Equity Act (55 of 1998) makes provision for the employment of equity candidates who can acquire skills in a reasonable amount of time. This requires individuals to be able to learn and then achieve in outcomes-based assessment. Core Self-Evaluations and Racial Evaluation can have an impact on how individuals perceive themselves, and how they perform in education, training and development (Hanley & Noblit, 2009). This study explored the relationship between Core Self-Evaluation, Racial Evaluation, Learning and Outcomes-Based Assessment using an experimental design. The Core Self-Evaluation scores in this study (n=230) were consistent with levels found internationally (Broucek, 2005). There was positive Racial Evaluation, with a relationship existing between Racial Evaluation and Core Self-Evaluations. This means that part of a person’s identity as an individual is related to Racial Evaluation, with that Racial Evaluation being positive amongst young Zulu students at the University of Zululand. There was a statistically significant, but small correlation between Learning and Core Self- Evaluation and a relationship was also found between CSE and Outcomes-Based Assessment results. When Core Self-Evaluation is higher, Learning tends to be more likely. The same pattern does not hold for Outcomes-Based Assessment results. Among Zulu students, lower CSE is linked to improved Outcomes-Based Assessment results. Racial Evaluation has a small relationship with CSE. However, efforts to remedy apartheid may be directed towards socio-economic development and need not focus on boosting Racial Evaluation when it comes to young Zulu adults.
- Full Text:
- Date Issued: 2011
Cross-border tourism planning and development: the case of the Lake Gariep Initiative
- Authors: Crozier, Marguerite Nicole
- Date: 2011
- Subjects: Tourism -- South Africa -- Gariep Dam -- Case studies , Gariep Dam (South Africa) -- Tourism -- Case studies , Central-local government relations -- South Africa -- Gariep Dam , Globalization -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9034 , http://hdl.handle.net/10948/1668 , Tourism -- South Africa -- Gariep Dam -- Case studies , Gariep Dam (South Africa) -- Tourism -- Case studies , Central-local government relations -- South Africa -- Gariep Dam , Globalization -- Economic aspects -- South Africa
- Description: The concept of cross-border tourism planning and cooperation is investigated in reference to the Lake !Gariep Initiative. The field of cross-border economic planning and integration is an area of increasing interest in regional development studies. The Lake Gariep Initiative is an initiative to promote cross-border planning and development around nature conservation, water resource management, economic development, poverty alleviation and tourism in the three municipalities that surround the Gariep Dam. The Gariep Dam, which is largest dam in South Africa, is surrounded by three provinces. The region is also economically and politically marginalised as it has a small, dispersed population and a marginal contribution to the broader regional economy. Under these circumstances the coordination of resources between municipalities to develop and promote the region has been identified as a key success factor for the region. The Lake Gariep Initiative although strongly supported locally has over ten years failed to be institutionalised. This study examines the Lake Gariep Initiative in terms of the origins of the concept and the key challenges that have been faced in establishing a cross-border, development entity. Findings are based on an assessment of documents on the formation of the LGI, interviews with stakeholders involved in the process and an assessment of critical success factors in reference to national and international case studies. This study provides a review of the key challenges, benefits and critical success factors for cross-border tourism development in relation to the Lake !Gariep Initiative.
- Full Text:
- Date Issued: 2011
- Authors: Crozier, Marguerite Nicole
- Date: 2011
- Subjects: Tourism -- South Africa -- Gariep Dam -- Case studies , Gariep Dam (South Africa) -- Tourism -- Case studies , Central-local government relations -- South Africa -- Gariep Dam , Globalization -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9034 , http://hdl.handle.net/10948/1668 , Tourism -- South Africa -- Gariep Dam -- Case studies , Gariep Dam (South Africa) -- Tourism -- Case studies , Central-local government relations -- South Africa -- Gariep Dam , Globalization -- Economic aspects -- South Africa
- Description: The concept of cross-border tourism planning and cooperation is investigated in reference to the Lake !Gariep Initiative. The field of cross-border economic planning and integration is an area of increasing interest in regional development studies. The Lake Gariep Initiative is an initiative to promote cross-border planning and development around nature conservation, water resource management, economic development, poverty alleviation and tourism in the three municipalities that surround the Gariep Dam. The Gariep Dam, which is largest dam in South Africa, is surrounded by three provinces. The region is also economically and politically marginalised as it has a small, dispersed population and a marginal contribution to the broader regional economy. Under these circumstances the coordination of resources between municipalities to develop and promote the region has been identified as a key success factor for the region. The Lake Gariep Initiative although strongly supported locally has over ten years failed to be institutionalised. This study examines the Lake Gariep Initiative in terms of the origins of the concept and the key challenges that have been faced in establishing a cross-border, development entity. Findings are based on an assessment of documents on the formation of the LGI, interviews with stakeholders involved in the process and an assessment of critical success factors in reference to national and international case studies. This study provides a review of the key challenges, benefits and critical success factors for cross-border tourism development in relation to the Lake !Gariep Initiative.
- Full Text:
- Date Issued: 2011
Cross-cultural differences: the experiences, challenges and strengths for partners in committed interacial relationships
- De Vries, Tielke Anna Eveline
- Authors: De Vries, Tielke Anna Eveline
- Date: 2011
- Subjects: Interacial marriage -- Cross-cultural studies , Interethnic marriage -- Cross-cultural studies , Couples
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9995 , http://hdl.handle.net/10948/d1008193 , Interacial marriage -- Cross-cultural studies , Interethnic marriage -- Cross-cultural studies , Couples
- Description: The topic of interpersonal relationships and the factors that enhance the longevity and strength of these have been well documented. Whilst there has been a steady increase in the occurrence of interracial relationships, it has not been matched by an increase in studies on the phenomenon and indeed very little empirical attention has been given to these relationships. Leslie and Letiecq (2004) highlight that the existing research on the phenomenon focuses primarily on the reasons individuals select partners outside of their own racial group. As interracial marriages are reportedly more vulnerable to divorce than marriages among same-race individuals, it seems important to examine the dynamics and quality of interracial relationships (Leslie & Letiecq, 2004). The goal of the study was therefore to explore the cross-cultural differences that inform the experiences, challenges, and strengths for partners in committed interracial relationships. In this qualitative, exploratory, descriptive and contextual study, the author has explored and described the specific cross-cultural differences that the couple has encountered in their relationship and the impact that these differences have had on the quality of their relationship. Furthermore the study aimed to explore and describe the strengths the couple has drawn from these cross-cultural differences to enhance the quality of their relationship. A combination of purposive and snowball sampling techniques has been utilised to identify interracial couples who have been in a committed monogamous relationship of at least one year. The sample consisted of eleven individuals. Semi-structured individual interviews were utilised as the data collection tool, and Tesch‟s model of data analysis (in Creswell, 1998) has been employed. This model of data analysis consists of eight steps that have been used to analyse the data. Five themes emerged from the study: (1) cultural difference factors, (2) negative factors that influence the couple‟s coping with cultural differences, (3) positive factors that influence the couple‟s coping with cultural differences, (4) factors relating to cultural differences that strengthen the relationship and (5) recommendations to other interracial couples. The findings of the study make a meaningful contribution to couple counselling interventions for interracial couples, and also add to the body of knowledge on this sparsely researched topic.
- Full Text:
- Date Issued: 2011
- Authors: De Vries, Tielke Anna Eveline
- Date: 2011
- Subjects: Interacial marriage -- Cross-cultural studies , Interethnic marriage -- Cross-cultural studies , Couples
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9995 , http://hdl.handle.net/10948/d1008193 , Interacial marriage -- Cross-cultural studies , Interethnic marriage -- Cross-cultural studies , Couples
- Description: The topic of interpersonal relationships and the factors that enhance the longevity and strength of these have been well documented. Whilst there has been a steady increase in the occurrence of interracial relationships, it has not been matched by an increase in studies on the phenomenon and indeed very little empirical attention has been given to these relationships. Leslie and Letiecq (2004) highlight that the existing research on the phenomenon focuses primarily on the reasons individuals select partners outside of their own racial group. As interracial marriages are reportedly more vulnerable to divorce than marriages among same-race individuals, it seems important to examine the dynamics and quality of interracial relationships (Leslie & Letiecq, 2004). The goal of the study was therefore to explore the cross-cultural differences that inform the experiences, challenges, and strengths for partners in committed interracial relationships. In this qualitative, exploratory, descriptive and contextual study, the author has explored and described the specific cross-cultural differences that the couple has encountered in their relationship and the impact that these differences have had on the quality of their relationship. Furthermore the study aimed to explore and describe the strengths the couple has drawn from these cross-cultural differences to enhance the quality of their relationship. A combination of purposive and snowball sampling techniques has been utilised to identify interracial couples who have been in a committed monogamous relationship of at least one year. The sample consisted of eleven individuals. Semi-structured individual interviews were utilised as the data collection tool, and Tesch‟s model of data analysis (in Creswell, 1998) has been employed. This model of data analysis consists of eight steps that have been used to analyse the data. Five themes emerged from the study: (1) cultural difference factors, (2) negative factors that influence the couple‟s coping with cultural differences, (3) positive factors that influence the couple‟s coping with cultural differences, (4) factors relating to cultural differences that strengthen the relationship and (5) recommendations to other interracial couples. The findings of the study make a meaningful contribution to couple counselling interventions for interracial couples, and also add to the body of knowledge on this sparsely researched topic.
- Full Text:
- Date Issued: 2011
Customer relationship management practiced by KOSAB
- Authors: Felix, Amoah
- Date: 2011
- Subjects: Customer relations , Customer services , Consumer satisfaction , Customer loyalty
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8635 , http://hdl.handle.net/10948/d1008046 , Customer relations , Customer services , Consumer satisfaction , Customer loyalty
- Description: Customer relationship management (CRM) presents a new paradigm shift to the old traditional marketing strategies that are known and practiced by many organisations in South Africa and across the globe. Competition is not an excuse for failure anymore. Organisations that do not have any concrete strategies in dealing with the customer will not survive in the market. The ultimate goal of CRM is to enable organisations to forge closer ties with the customer so that a solid bond can be created to enhance loyalty and satisfaction. The goal for this research was to identify the CRM strategies used by a single organisation and thereafter suggest improvements to enhance customer loyalty. The results of the study could assist the management of the organisation to improve the CRM strategies which will hopefully enhance retention and prevent customer attrition. A literature review was conducted to unveil various elements of CRM, and strategies that can attract and retain customers. It helped in identifying themes for the empirical study. An in-depth interview was conducted with the general manager of the organisation to gauge his perception, and CRM practices in the organisation. An interview guide was used during the interview process. Four main topics namely: implementation of CRM, customer loyalty, customer complaints and conflict, and employees training and motivation were utilised for the interview guide and followed by further probing. Based on the responses obtained, analyses were made by comparing the responses to what literature revealed so that shortcomings could easily be identified.The study revealed that there were several inconsistencies with what was practised by the organisation and what the literature study revealed. Bearing in mind the shortcomings identified in the empirical study, the researcher made the following recommendations. The CRM implementation approach needs to be carefully planned with a clear defined vision and mission statement that focus on customer centredness. The organisation needs to invest in modern and innovative channels of communication and strategic partnership to reach the right customer. The organisation has to develop effective market segmentation and targeting to know the customer well. Consistent and highly relevant customer experiences should be drawn-on to fulfill the organisation’s promise of trust and reliability. The organisation should adopt competitive pricing strategy to limit customer sensitivity on price. The organisation should invest in employees’ development and welfare. Further research can be conducted to investigate the perception of other food retailers on the CRM strategies practiced. Further research can also be conducted in the organisation to investigate the perception of employees and customers on the CRM strategies practised.
- Full Text:
- Date Issued: 2011
- Authors: Felix, Amoah
- Date: 2011
- Subjects: Customer relations , Customer services , Consumer satisfaction , Customer loyalty
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8635 , http://hdl.handle.net/10948/d1008046 , Customer relations , Customer services , Consumer satisfaction , Customer loyalty
- Description: Customer relationship management (CRM) presents a new paradigm shift to the old traditional marketing strategies that are known and practiced by many organisations in South Africa and across the globe. Competition is not an excuse for failure anymore. Organisations that do not have any concrete strategies in dealing with the customer will not survive in the market. The ultimate goal of CRM is to enable organisations to forge closer ties with the customer so that a solid bond can be created to enhance loyalty and satisfaction. The goal for this research was to identify the CRM strategies used by a single organisation and thereafter suggest improvements to enhance customer loyalty. The results of the study could assist the management of the organisation to improve the CRM strategies which will hopefully enhance retention and prevent customer attrition. A literature review was conducted to unveil various elements of CRM, and strategies that can attract and retain customers. It helped in identifying themes for the empirical study. An in-depth interview was conducted with the general manager of the organisation to gauge his perception, and CRM practices in the organisation. An interview guide was used during the interview process. Four main topics namely: implementation of CRM, customer loyalty, customer complaints and conflict, and employees training and motivation were utilised for the interview guide and followed by further probing. Based on the responses obtained, analyses were made by comparing the responses to what literature revealed so that shortcomings could easily be identified.The study revealed that there were several inconsistencies with what was practised by the organisation and what the literature study revealed. Bearing in mind the shortcomings identified in the empirical study, the researcher made the following recommendations. The CRM implementation approach needs to be carefully planned with a clear defined vision and mission statement that focus on customer centredness. The organisation needs to invest in modern and innovative channels of communication and strategic partnership to reach the right customer. The organisation has to develop effective market segmentation and targeting to know the customer well. Consistent and highly relevant customer experiences should be drawn-on to fulfill the organisation’s promise of trust and reliability. The organisation should adopt competitive pricing strategy to limit customer sensitivity on price. The organisation should invest in employees’ development and welfare. Further research can be conducted to investigate the perception of other food retailers on the CRM strategies practiced. Further research can also be conducted in the organisation to investigate the perception of employees and customers on the CRM strategies practised.
- Full Text:
- Date Issued: 2011
Destination management: critical success factors for Knysna as an international tourism destination
- Authors: Gie, Jannie Adriaan
- Date: 2011
- Subjects: Place marketing -- South Africa -- Knysna , Tourism -- Marketing -- South Africa -- Knysna , Tourism management -- South Africa -- Knysna , Tourism -- South Africa -- Knysna
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8641 , http://hdl.handle.net/10948/1433 , Place marketing -- South Africa -- Knysna , Tourism -- Marketing -- South Africa -- Knysna , Tourism management -- South Africa -- Knysna , Tourism -- South Africa -- Knysna
- Description: Tourism, as an industry, has a great impact on society and the environment. It adds to economic growth; and therefore, many governments try to enhance tourism because they realise the potential economic returns. Within each country, there are towns or cities that have great tourism potential. In South Africa, Knysna is a good example of a small town with great tourism potential. This study examines the critical success factors of tourism destination marketing for the town of Knysna. Most South Africans see Knysna as an ideal holiday destination, as it has the infrastructure and offerings to make tourists' holidays unforgettable. However, unfortunately, in recent times bad publicity has caused Knysna's image to be damaged. To improve the town's image and to add to its economic growth, tourism bodies and the community have had to work together to ensure that Knysna sustains its position in the national and international tourism markets. The best way to achieve this is through effective destination management and destination marketing. The aim of this study is to determine how effective destination management and destination marketing can lead to competitive growth and to enhancing a destination's position in the tourism industry, and also to providing a set of practical guidelines for the successful implementation of the destination marketing of the town of Knysna. A literature study was conducted to find out what the theory reveals about destination management and marketing. This was followed by an empirical survey; and this survey was conducted in Knysna in the Western Cape. The results of the survey were compared with the literature and tourism operators and managers can now use these as a point of departure to fill any gaps, thus leading to the optimal positioning of Knysna on the international tourism map.
- Full Text:
- Date Issued: 2011
- Authors: Gie, Jannie Adriaan
- Date: 2011
- Subjects: Place marketing -- South Africa -- Knysna , Tourism -- Marketing -- South Africa -- Knysna , Tourism management -- South Africa -- Knysna , Tourism -- South Africa -- Knysna
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8641 , http://hdl.handle.net/10948/1433 , Place marketing -- South Africa -- Knysna , Tourism -- Marketing -- South Africa -- Knysna , Tourism management -- South Africa -- Knysna , Tourism -- South Africa -- Knysna
- Description: Tourism, as an industry, has a great impact on society and the environment. It adds to economic growth; and therefore, many governments try to enhance tourism because they realise the potential economic returns. Within each country, there are towns or cities that have great tourism potential. In South Africa, Knysna is a good example of a small town with great tourism potential. This study examines the critical success factors of tourism destination marketing for the town of Knysna. Most South Africans see Knysna as an ideal holiday destination, as it has the infrastructure and offerings to make tourists' holidays unforgettable. However, unfortunately, in recent times bad publicity has caused Knysna's image to be damaged. To improve the town's image and to add to its economic growth, tourism bodies and the community have had to work together to ensure that Knysna sustains its position in the national and international tourism markets. The best way to achieve this is through effective destination management and destination marketing. The aim of this study is to determine how effective destination management and destination marketing can lead to competitive growth and to enhancing a destination's position in the tourism industry, and also to providing a set of practical guidelines for the successful implementation of the destination marketing of the town of Knysna. A literature study was conducted to find out what the theory reveals about destination management and marketing. This was followed by an empirical survey; and this survey was conducted in Knysna in the Western Cape. The results of the survey were compared with the literature and tourism operators and managers can now use these as a point of departure to fill any gaps, thus leading to the optimal positioning of Knysna on the international tourism map.
- Full Text:
- Date Issued: 2011
Detection and identification of plasmodium species causing malaria in Malawi using rapid diagnostic tests
- Authors: Tegha, Gerald Loiswayo
- Date: 2011
- Subjects: Malaria -- Diagnosis -- Malawi , Plasmodium
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10127 , http://hdl.handle.net/10948/d1021240
- Description: Malaria represents one of the oldest documented diseases among humans and even today organisms in the genus Plasmodium kill more people than any other infectious disease, especially in tropical and subtropical areas. The four most common species which infect humans are Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale and Plasmodium malaria. Of these four species, Plasmodium falciparum and Plasmodium vivax account for 95 percent of infections globally. Microscopy has been used since early days for the diagnosis of malaria because this method is simple, does not require highly equipped facilities, and in most cases enables differentiation among the species causing malaria in humans when performed by skilled microscopy readers. However, this method has been misleading in identifying parasite species, especially in the case of low level parasitemia, a mixed parasite infection, or modification by drug treatment as well as in placental malaria. Malaria rapid diagnostic tests (RDT) have played a major role in malaria management; particularly in providing blood based diagnosis in remote locations where microscopy based diagnosis is unavailable. These diagnostic tests are fast and easy to perform and do not require electricity or specific equipment. As part of strengthening malaria diagnostics in Malawi, the Ministry of Health and Population strongly recommends the use of malaria RDT’s at all levels of the health care delivery system. However, malaria microscopy remains a gold standard test for malaria. All patients (regardless of age) with suspected uncomplicated malaria should have a confirmed diagnosis with malaria RDT before anti-malaria treatment is administered. Based on field performance evaluations that assessed performance, quality control and production capacities of the manufacturing companies of malaria RDT’s, the Ministry of Health and Population recommended two brands of Histidine Rich Protein 2 (HRP-2), RDT’s for use in Malawi. These are SD Bioline malaria Ag Pf and the New Paracheck malaria Ag Pf. All these RDT’s are able to detect only P. falciparum. However, other species have been reported to exist in the country and there is a need to find proper RDT’s which will be able to detect all other species including P. falciparum. The main aim of this study was to evaluate Paramax-3 Pf/Pv/Pan RDT (Zephyr Biomedicals, India), if used in Malawi, could be able to detect and identify the different species of Plasmodium causing malaria in Malawi. The study recruited a total of 250 adult and infants at Bwaila Hospital in Lilongwe, Malawi. Study results showed that the overall sensitivity and specificity of the Paramax-3 RDT used in the study were 100 percent and 83 percent respectively. However, it was observed that the RDT test was not able to identify the P. ovale, and in some cases, the RDT test was positive for P. falciparum when the PCR identified the species as P. ovale. No P. vivax was detected both by RDT and PCR. This study was able to detect and identify the presence of P. malaria and P. ovale in Malawi apart from the P. falciparum. There were no significant differences between microscopy results compared to both the RDT and the PCR, with 94 percent and 98 percent sensitivities of R1 and R2 compared to RDT, as well as 94 percent and 96 percent sensitivities for R1 and R2 compared to PCR respectively. Both R1 and R2 had low specificities for example, R1 had 72 percent and R2 had 80 percent compared to RDT. Comparing R1 and R2 to PCR, the sensitivities were 64.9 percent and 67.2 percent respectively. However, the readers had difficulties differentiating the different species microscopically. The history of anti-malaria treatment had no significant effect on the outcome of the results in both the RDT and PCR.
- Full Text:
- Date Issued: 2011
- Authors: Tegha, Gerald Loiswayo
- Date: 2011
- Subjects: Malaria -- Diagnosis -- Malawi , Plasmodium
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10127 , http://hdl.handle.net/10948/d1021240
- Description: Malaria represents one of the oldest documented diseases among humans and even today organisms in the genus Plasmodium kill more people than any other infectious disease, especially in tropical and subtropical areas. The four most common species which infect humans are Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale and Plasmodium malaria. Of these four species, Plasmodium falciparum and Plasmodium vivax account for 95 percent of infections globally. Microscopy has been used since early days for the diagnosis of malaria because this method is simple, does not require highly equipped facilities, and in most cases enables differentiation among the species causing malaria in humans when performed by skilled microscopy readers. However, this method has been misleading in identifying parasite species, especially in the case of low level parasitemia, a mixed parasite infection, or modification by drug treatment as well as in placental malaria. Malaria rapid diagnostic tests (RDT) have played a major role in malaria management; particularly in providing blood based diagnosis in remote locations where microscopy based diagnosis is unavailable. These diagnostic tests are fast and easy to perform and do not require electricity or specific equipment. As part of strengthening malaria diagnostics in Malawi, the Ministry of Health and Population strongly recommends the use of malaria RDT’s at all levels of the health care delivery system. However, malaria microscopy remains a gold standard test for malaria. All patients (regardless of age) with suspected uncomplicated malaria should have a confirmed diagnosis with malaria RDT before anti-malaria treatment is administered. Based on field performance evaluations that assessed performance, quality control and production capacities of the manufacturing companies of malaria RDT’s, the Ministry of Health and Population recommended two brands of Histidine Rich Protein 2 (HRP-2), RDT’s for use in Malawi. These are SD Bioline malaria Ag Pf and the New Paracheck malaria Ag Pf. All these RDT’s are able to detect only P. falciparum. However, other species have been reported to exist in the country and there is a need to find proper RDT’s which will be able to detect all other species including P. falciparum. The main aim of this study was to evaluate Paramax-3 Pf/Pv/Pan RDT (Zephyr Biomedicals, India), if used in Malawi, could be able to detect and identify the different species of Plasmodium causing malaria in Malawi. The study recruited a total of 250 adult and infants at Bwaila Hospital in Lilongwe, Malawi. Study results showed that the overall sensitivity and specificity of the Paramax-3 RDT used in the study were 100 percent and 83 percent respectively. However, it was observed that the RDT test was not able to identify the P. ovale, and in some cases, the RDT test was positive for P. falciparum when the PCR identified the species as P. ovale. No P. vivax was detected both by RDT and PCR. This study was able to detect and identify the presence of P. malaria and P. ovale in Malawi apart from the P. falciparum. There were no significant differences between microscopy results compared to both the RDT and the PCR, with 94 percent and 98 percent sensitivities of R1 and R2 compared to RDT, as well as 94 percent and 96 percent sensitivities for R1 and R2 compared to PCR respectively. Both R1 and R2 had low specificities for example, R1 had 72 percent and R2 had 80 percent compared to RDT. Comparing R1 and R2 to PCR, the sensitivities were 64.9 percent and 67.2 percent respectively. However, the readers had difficulties differentiating the different species microscopically. The history of anti-malaria treatment had no significant effect on the outcome of the results in both the RDT and PCR.
- Full Text:
- Date Issued: 2011
Developing an incubation strategy for Oudtshoorn
- Authors: Petersen, Winifred
- Date: 2011
- Subjects: Business incubators -- South Africa -- Oudshoorn , New business enterprises -- South Africa -- Oudshoorn
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8648 , http://hdl.handle.net/10948/1385 , Business incubators -- South Africa -- Oudshoorn , New business enterprises -- South Africa -- Oudshoorn
- Description: Business incubators, as recognised in their contemporary form, have a history dating back to the 1970s in the United Kingdom and the USA. South Africa is no stranger to this concept of business incubation either: Since the 1980s the Small Business Development Corporation (SBDC) operated business “hives” as clusters of small enterprises. Business incubators are support facilities that empower and stimulate small-entrepreneurial businesses – from the financially vulnerable start-up period, until the time that the fledgling company is ready to operate more autonomously. Business incubators provide, as part of their services, affordable space, financial-management services, sound business advice and other development services. Incubation stimulates the development of small-entrepreneurial businesses and, to this end, helps stimulate the economy. Thus, for South Africa to invest in the development of small growing businesses, is to invest directly in its larger economy and to address its own development challenges like employment-creation, income-generation and the alleviation of poverty. It is in this context that this study discusses the development challenges of one of the rural areas in South Africa, Oudtshoorn, and aims to provide a viable strategy of business incubation for this area, in anticipation that in future lessons can be drawn from this and applied to other rural areas. Oudtshoorn is a town in the Klein Karoo, in the Western Cape Province of South Africa. The strongest sectors in Oudtshoorn’s economy are agriculture and tourism. These two sectors should provide the basis for an empowering business incubator to strengthen and enhance smaller businesses in the town. The study focuses on the development challenges of South Africa and, in particular, a rural town such as Oudtshoorn, the importance of investing in small entrepreneurial businesses so as to strengthen the country’s economy. the nature an significance of a business-incubation strategy for the Oudtshoorn area. Background literature on South Africa’s development challenges was collated as well as information gathered on small-business support and incubation in particular. Literature was retrieved from local institutions as well as national and international sources. Case studies of incubators in South Africa and in other countries were included to enhance the understanding of the importance of business incubation. In addition, the researcher’s close networks with the Oudtshoorn municipality, the local Red Door office and the different role-players in the small-business support sphere allowed for an in-depth assessment of support for such an incubation project and the critical obstacles it may encounter en route.
- Full Text:
- Date Issued: 2011
- Authors: Petersen, Winifred
- Date: 2011
- Subjects: Business incubators -- South Africa -- Oudshoorn , New business enterprises -- South Africa -- Oudshoorn
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8648 , http://hdl.handle.net/10948/1385 , Business incubators -- South Africa -- Oudshoorn , New business enterprises -- South Africa -- Oudshoorn
- Description: Business incubators, as recognised in their contemporary form, have a history dating back to the 1970s in the United Kingdom and the USA. South Africa is no stranger to this concept of business incubation either: Since the 1980s the Small Business Development Corporation (SBDC) operated business “hives” as clusters of small enterprises. Business incubators are support facilities that empower and stimulate small-entrepreneurial businesses – from the financially vulnerable start-up period, until the time that the fledgling company is ready to operate more autonomously. Business incubators provide, as part of their services, affordable space, financial-management services, sound business advice and other development services. Incubation stimulates the development of small-entrepreneurial businesses and, to this end, helps stimulate the economy. Thus, for South Africa to invest in the development of small growing businesses, is to invest directly in its larger economy and to address its own development challenges like employment-creation, income-generation and the alleviation of poverty. It is in this context that this study discusses the development challenges of one of the rural areas in South Africa, Oudtshoorn, and aims to provide a viable strategy of business incubation for this area, in anticipation that in future lessons can be drawn from this and applied to other rural areas. Oudtshoorn is a town in the Klein Karoo, in the Western Cape Province of South Africa. The strongest sectors in Oudtshoorn’s economy are agriculture and tourism. These two sectors should provide the basis for an empowering business incubator to strengthen and enhance smaller businesses in the town. The study focuses on the development challenges of South Africa and, in particular, a rural town such as Oudtshoorn, the importance of investing in small entrepreneurial businesses so as to strengthen the country’s economy. the nature an significance of a business-incubation strategy for the Oudtshoorn area. Background literature on South Africa’s development challenges was collated as well as information gathered on small-business support and incubation in particular. Literature was retrieved from local institutions as well as national and international sources. Case studies of incubators in South Africa and in other countries were included to enhance the understanding of the importance of business incubation. In addition, the researcher’s close networks with the Oudtshoorn municipality, the local Red Door office and the different role-players in the small-business support sphere allowed for an in-depth assessment of support for such an incubation project and the critical obstacles it may encounter en route.
- Full Text:
- Date Issued: 2011
Developing assessment criteria for a sustainable energy sector development project: shale gas exploration in the Karoo
- Authors: Badassey, Jyoti
- Date: 2011
- Subjects: Sustainable development , Economic development -- Sustainability
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9072 , http://hdl.handle.net/10948/d1008405 , Sustainable development , Economic development -- Sustainability
- Description: This research project aims to assess development projects in the energy sector with its focus on the shale gas exploration in the Karoo. The assessment is based on a critical analysis of the concepts and principles of sustainability, complexity and the National Environmental Management Act, using a critical hermeneutics methodology to develop an assessment criterion. Critical hermeneutics is the science and art of interpreting texts, challenging the status quo, its influences and assumptions. Hermeneutics is the reaction to enlightenment fundamentalism, which is an over-reliance on rationality and the scientific method as a primary means of obtaining truth. Hence this research has adopted a triangulation of ideas and concepts derived from sustainability and complexity to find the truth about the sustainability of development projects (Cilliers, 1998; Deleuze & Guattari, 1994; Byrne, 1998). The Central Karoo is situated in the North Eastern part of the Western Province. It is characterised by dry, arid conditions with highly environmentally sensitive land. Central Karoo has the smallest concentration of people in the Western Cape (Van Vuuren, 2008). This research project offers an assessment that will help governments determine the feasibility of energy sector projects since it discusses the impact of exploration for shale gas in the Karoo and explains the process, recommendations and the environmental legislature required for any project to take place in South Africa. Further, it highlights the environmental damage caused by the shale gas exploration as well as the positive economic impact that it could have on the country. For this research, hermeneutics has offered a framework rather than a system; it is a research philosophy that places human experience at the forefront as it honours a variety of interpretations.
- Full Text:
- Date Issued: 2011
- Authors: Badassey, Jyoti
- Date: 2011
- Subjects: Sustainable development , Economic development -- Sustainability
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9072 , http://hdl.handle.net/10948/d1008405 , Sustainable development , Economic development -- Sustainability
- Description: This research project aims to assess development projects in the energy sector with its focus on the shale gas exploration in the Karoo. The assessment is based on a critical analysis of the concepts and principles of sustainability, complexity and the National Environmental Management Act, using a critical hermeneutics methodology to develop an assessment criterion. Critical hermeneutics is the science and art of interpreting texts, challenging the status quo, its influences and assumptions. Hermeneutics is the reaction to enlightenment fundamentalism, which is an over-reliance on rationality and the scientific method as a primary means of obtaining truth. Hence this research has adopted a triangulation of ideas and concepts derived from sustainability and complexity to find the truth about the sustainability of development projects (Cilliers, 1998; Deleuze & Guattari, 1994; Byrne, 1998). The Central Karoo is situated in the North Eastern part of the Western Province. It is characterised by dry, arid conditions with highly environmentally sensitive land. Central Karoo has the smallest concentration of people in the Western Cape (Van Vuuren, 2008). This research project offers an assessment that will help governments determine the feasibility of energy sector projects since it discusses the impact of exploration for shale gas in the Karoo and explains the process, recommendations and the environmental legislature required for any project to take place in South Africa. Further, it highlights the environmental damage caused by the shale gas exploration as well as the positive economic impact that it could have on the country. For this research, hermeneutics has offered a framework rather than a system; it is a research philosophy that places human experience at the forefront as it honours a variety of interpretations.
- Full Text:
- Date Issued: 2011
Developing assessment criteria for successful poverty alleviation with special reference to the Nomzamo Special Care Centre
- Authors: Gidi, Banele Anthony
- Date: 2011
- Subjects: Poverty -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Child care services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9050 , http://hdl.handle.net/10948/1601 , Poverty -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Child care services -- South Africa -- Eastern Cape
- Description: While this study is partly theoretical it includes an exploratory case study in which theoretical insights are applied. In the theoretical part of this study, criteria for a successful poverty alleviation project were developed, guided by sustainability theory and complexity theory. It was proposed that researchers could assess existing projects according to these criteria to show where they were successful and where they could improve. The second part of this research consists of a case study, where an actual poverty alleviation project (The Nomzamo Special Care Centre, Peddie, Eastern Cape) was assessed according to the criteria developed in the first part. For this exploratory case study a non-random sample of 9 participants was drawn from the Nomzamo Special Care Centre and other stakeholders in the Ngqushwa Local Municipality in the Eastern Cape. Data was collected using questionnaires, observation and interviews. The results obtained from analysis indicate that project members particularly experience challenges pertaining to financial resources, infrastructure and maintenance. It is recommended that project members receive assistance from the government departments in order for the project to remain sustainable.
- Full Text:
- Date Issued: 2011
- Authors: Gidi, Banele Anthony
- Date: 2011
- Subjects: Poverty -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Child care services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9050 , http://hdl.handle.net/10948/1601 , Poverty -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Child care services -- South Africa -- Eastern Cape
- Description: While this study is partly theoretical it includes an exploratory case study in which theoretical insights are applied. In the theoretical part of this study, criteria for a successful poverty alleviation project were developed, guided by sustainability theory and complexity theory. It was proposed that researchers could assess existing projects according to these criteria to show where they were successful and where they could improve. The second part of this research consists of a case study, where an actual poverty alleviation project (The Nomzamo Special Care Centre, Peddie, Eastern Cape) was assessed according to the criteria developed in the first part. For this exploratory case study a non-random sample of 9 participants was drawn from the Nomzamo Special Care Centre and other stakeholders in the Ngqushwa Local Municipality in the Eastern Cape. Data was collected using questionnaires, observation and interviews. The results obtained from analysis indicate that project members particularly experience challenges pertaining to financial resources, infrastructure and maintenance. It is recommended that project members receive assistance from the government departments in order for the project to remain sustainable.
- Full Text:
- Date Issued: 2011
Development and testing of liposome encapsulated cyclic dipeptides
- Authors: Kilian, Gareth
- Date: 2011
- Subjects: Peptide antibiotics , Peptide drugs -- Therapeutic use , Peptides -- Synthesis , Antibacterial agents -- Therapeutic use -- Testing , Cyclic peptides , Liposomes
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10136 , http://hdl.handle.net/10948/1397 , Peptide antibiotics , Peptide drugs -- Therapeutic use , Peptides -- Synthesis , Antibacterial agents -- Therapeutic use -- Testing , Cyclic peptides , Liposomes
- Description: Cyclic dipeptides have been well characterized for their multitude of biological activities, including antimicrobial and anticancer activities. Cyclo(His-Gly) and cyclo(His-Ala) have also recently been shown to possess significant anticancer activity against a range of cell lines, despite the limitations of these two molecules with respect to their physicochemical properties. Low Log P results in poor cell permeability which can often be problematic for drugs with intracellular mechanisms of action. It can also results in poor biodistribution, and theoretical Log P values for cyclo(His-Gly) and cyclo(His-Ala) were extremely low making them ideal candidates for inclusion into a nanoparticulate drug delivery system. The aim of this study was therefore to formulate and evaluate liposome-encapsulated cyclic dipeptides that increase the tumour-suppressive actions of the cyclic dipeptides, while showing a high degree of specificity for tumour cells. While liposomes are relatively simple to prepare, inter batch variation, low encapsulation and poor stability are often problematic in their production and this has lead to very few liposomal products on the market. This study aimed at using a comprehensive statistical methodology in optimizing liposome formulations encapsulating cyclo(His-Gly) and cyclo(His-Ala). Initial screening of potential factors was conducted using a 25-1 fractional factorial design. This design made use of two levels for each of the five factors and abbreviated the design to minimize runs. Although not much information is provided by these types of designs, the design was sufficient in identifying two critical factors that would be studies further in a more robust design. The two factors selected, based on the screening study, were cholesterol and stearylamine content. These two factors were then used in designing a response surface methodology (RSM) design making use of a central composite rotatable vii design (CCRD) at five levels (-1.5, -1, 0, 1, 1.5) for each factor in order to better understand the design space. Various factors influenced the measured responses of encapsulation efficiency, zeta potential, polydispersity index, cellular uptake and leakage, but most notable were the adverse effects of increasing stearylamine levels on encapsulations efficiency and cholesterol levels on leakage for both cyclo(His-Gly) and cyclo(His-Ala) liposomes. Optimized formulations were derived from the data and prepared. Fair correlation between the predicted and measured responses was obtained. The cytotoxic activity of the encapsulated cyclic dipeptides were assessed against HeLa and MCF-7 cells and found to have limited improvement in activity. However, modification of the polyethylene glycol (PEG) grafted to the liposome surface in order to target folate receptors showed good benefit in significantly decreasing the IC50 values recorded in all cells lines tested, particularly low folate HeLa cells with the lowest IC50 being recorded as 0.0962 mM for folate targeted cyclo(His-Ala). The results therefore indicate that hydrophilic cyclic dipeptides are ideal candidates for inclusion into targeted drug delivery systems such as liposomes. Key words: Liposomes, cyclo(His-Gly), cyclo(His-Ala), cyclic dipeptides, HeLa, MCF-7, folate receptors, factorial design, response surface methodology (RSM), central composite rotatable design (CCRD).
- Full Text:
- Date Issued: 2011
- Authors: Kilian, Gareth
- Date: 2011
- Subjects: Peptide antibiotics , Peptide drugs -- Therapeutic use , Peptides -- Synthesis , Antibacterial agents -- Therapeutic use -- Testing , Cyclic peptides , Liposomes
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10136 , http://hdl.handle.net/10948/1397 , Peptide antibiotics , Peptide drugs -- Therapeutic use , Peptides -- Synthesis , Antibacterial agents -- Therapeutic use -- Testing , Cyclic peptides , Liposomes
- Description: Cyclic dipeptides have been well characterized for their multitude of biological activities, including antimicrobial and anticancer activities. Cyclo(His-Gly) and cyclo(His-Ala) have also recently been shown to possess significant anticancer activity against a range of cell lines, despite the limitations of these two molecules with respect to their physicochemical properties. Low Log P results in poor cell permeability which can often be problematic for drugs with intracellular mechanisms of action. It can also results in poor biodistribution, and theoretical Log P values for cyclo(His-Gly) and cyclo(His-Ala) were extremely low making them ideal candidates for inclusion into a nanoparticulate drug delivery system. The aim of this study was therefore to formulate and evaluate liposome-encapsulated cyclic dipeptides that increase the tumour-suppressive actions of the cyclic dipeptides, while showing a high degree of specificity for tumour cells. While liposomes are relatively simple to prepare, inter batch variation, low encapsulation and poor stability are often problematic in their production and this has lead to very few liposomal products on the market. This study aimed at using a comprehensive statistical methodology in optimizing liposome formulations encapsulating cyclo(His-Gly) and cyclo(His-Ala). Initial screening of potential factors was conducted using a 25-1 fractional factorial design. This design made use of two levels for each of the five factors and abbreviated the design to minimize runs. Although not much information is provided by these types of designs, the design was sufficient in identifying two critical factors that would be studies further in a more robust design. The two factors selected, based on the screening study, were cholesterol and stearylamine content. These two factors were then used in designing a response surface methodology (RSM) design making use of a central composite rotatable vii design (CCRD) at five levels (-1.5, -1, 0, 1, 1.5) for each factor in order to better understand the design space. Various factors influenced the measured responses of encapsulation efficiency, zeta potential, polydispersity index, cellular uptake and leakage, but most notable were the adverse effects of increasing stearylamine levels on encapsulations efficiency and cholesterol levels on leakage for both cyclo(His-Gly) and cyclo(His-Ala) liposomes. Optimized formulations were derived from the data and prepared. Fair correlation between the predicted and measured responses was obtained. The cytotoxic activity of the encapsulated cyclic dipeptides were assessed against HeLa and MCF-7 cells and found to have limited improvement in activity. However, modification of the polyethylene glycol (PEG) grafted to the liposome surface in order to target folate receptors showed good benefit in significantly decreasing the IC50 values recorded in all cells lines tested, particularly low folate HeLa cells with the lowest IC50 being recorded as 0.0962 mM for folate targeted cyclo(His-Ala). The results therefore indicate that hydrophilic cyclic dipeptides are ideal candidates for inclusion into targeted drug delivery systems such as liposomes. Key words: Liposomes, cyclo(His-Gly), cyclo(His-Ala), cyclic dipeptides, HeLa, MCF-7, folate receptors, factorial design, response surface methodology (RSM), central composite rotatable design (CCRD).
- Full Text:
- Date Issued: 2011
Development of MgZnO-grown MOCVD for UV Photonic applications
- Authors: Talla, Kharouna
- Date: 2011
- Subjects: Photoluminescence , Photonics , Zinc oxide
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10537 , http://hdl.handle.net/10948/d1012585 , Photoluminescence , Photonics , Zinc oxide
- Description: MgxZn1-xO has emerged as a material of great technological importance. Having a direct energy band gap that is tunable throughout much of the ultraviolet (UV) region of the spectrum from the near-UV (~370 nm) to the deep-UV (~176 nm), this compound is of interest for a variety of optoelectronic devices operating in this part of the electromagnetic spectrum. MgxZn1-xO offers advantages over the more mature compound semiconductor AlGaN which stem mainly from the unusually high exciton binding energy (60 meV in ZnO). In this study the growth of ZnO and MgxZn1-xO thin films using metal organic chemical vapour deposition (MOCVD) is systematically investigated. The films are mainly grown on c-Al2O3 and Si (100) and characterized using various techniques, such as photoluminescence (PL), x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and auger electron spectroscopy (AES). The optical and the structural properties are essentially inspected in order to improve their quality. In this thesis the optimisation of ZnO grown using oxygen gas as a new oxidant in our reactor is investigated. The growth temperature and VI/II ratio are varied in order to find optimum parameters giving high quality layers. The effects of Si (100), Si (111), c- and r-sapphire, glass, GaAs and ZnO substrates on the optical, structural and morphological properties of ZnO thin films grown with tert-butanol (TBOH) is examined. Similar morphologies are observed for all substrates, with the films comprising hexagonal columns having cone shaped ends. The photoluminescence spectra are similar, but the various transitions have different relative intensities. It is clear that the different substrates influence neither the orientation of the films, nor the surface morphology, significantly. The photoluminescence hints at larger stacking fault densities in films grown on silicon and glass, however, as evidenced by stronger basal plane stacking fault-related luminescence at ~3.319 eV in the relevant low temperature photoluminescence spectra. The morphology changes with Mg incorporation, from hexagonal columnar structures to cubic faceted columns. From PL, the full with at half maximum is found to gradually increase with Mg content due to alloy broadening. The deep level emission (DLE) is observed to shift with Mg content. By changing the Mg content, the band gap of MgxZn1-xO film is tuned by ~450 meV, which provides an excellent opportunity for band gap engineering for optoelectronic applications. The c-lattice constant of ZnO (5.205 Å) decreases by only 0.6% when the Mg content reaches x=0.39. The introduction of Mg into ZnO is shown to increase the relative PL intensity of stacking fault-related transitions (at 3.314 eV for ZnO). This becomes the dominant near band edge emission. Using TEM a thin Mg rich layer is observed at the interface between the film and the Si or Al2O3. Temperature dependent PL measurements on layers with low Mg concentration (x=0.05 and 0.1) show that the main bound exciton peak exhibits an “s-shaped” temperature dependence, characteristic of localization in a disordered alloy. The origin of the PL line broadening of MgxZn1-xO (x≤0.04) is also analyzed with respect to alloy broadening, taking into account a random cation distribution and alloy clustering. The influence of various MOCVD growth parameters such as growth temperature and VI/II ratio is studied. Varying the temperature from 280 ˚C to 580 ˚C reveals strong morphological changes and optical degradation of the films. Low (<280 ˚C) and high (>580 ˚C) growth temperatures reduce the Mg incorporation. High VI/II ratios also decrease the Mg incorporation, as evidenced by the red-shift of the donor bound exciton (D°X) line. This is ascribed to a stronger premature reaction between (MeCp)2Mg and the oxidant or a preferential heterogeneous interaction between the Mg and oxygen species on the growth front. For both oxidizing agents (O2 and TBOH), the growth at 420 ˚C and a VI-II ratio of 60 on c-Al2O3 gave optimal quality layers in terms of their optical and structural quality. A comparison of films grown using TBOH and O2 gas as oxidizing agent shows no major difference in terms of Mg incorporation. The effect of annealing, the inclusion of a buffer layer and the influence of growth rate on the properties MgxZn1-xO thin films are also reported.
- Full Text:
- Date Issued: 2011
- Authors: Talla, Kharouna
- Date: 2011
- Subjects: Photoluminescence , Photonics , Zinc oxide
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10537 , http://hdl.handle.net/10948/d1012585 , Photoluminescence , Photonics , Zinc oxide
- Description: MgxZn1-xO has emerged as a material of great technological importance. Having a direct energy band gap that is tunable throughout much of the ultraviolet (UV) region of the spectrum from the near-UV (~370 nm) to the deep-UV (~176 nm), this compound is of interest for a variety of optoelectronic devices operating in this part of the electromagnetic spectrum. MgxZn1-xO offers advantages over the more mature compound semiconductor AlGaN which stem mainly from the unusually high exciton binding energy (60 meV in ZnO). In this study the growth of ZnO and MgxZn1-xO thin films using metal organic chemical vapour deposition (MOCVD) is systematically investigated. The films are mainly grown on c-Al2O3 and Si (100) and characterized using various techniques, such as photoluminescence (PL), x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and auger electron spectroscopy (AES). The optical and the structural properties are essentially inspected in order to improve their quality. In this thesis the optimisation of ZnO grown using oxygen gas as a new oxidant in our reactor is investigated. The growth temperature and VI/II ratio are varied in order to find optimum parameters giving high quality layers. The effects of Si (100), Si (111), c- and r-sapphire, glass, GaAs and ZnO substrates on the optical, structural and morphological properties of ZnO thin films grown with tert-butanol (TBOH) is examined. Similar morphologies are observed for all substrates, with the films comprising hexagonal columns having cone shaped ends. The photoluminescence spectra are similar, but the various transitions have different relative intensities. It is clear that the different substrates influence neither the orientation of the films, nor the surface morphology, significantly. The photoluminescence hints at larger stacking fault densities in films grown on silicon and glass, however, as evidenced by stronger basal plane stacking fault-related luminescence at ~3.319 eV in the relevant low temperature photoluminescence spectra. The morphology changes with Mg incorporation, from hexagonal columnar structures to cubic faceted columns. From PL, the full with at half maximum is found to gradually increase with Mg content due to alloy broadening. The deep level emission (DLE) is observed to shift with Mg content. By changing the Mg content, the band gap of MgxZn1-xO film is tuned by ~450 meV, which provides an excellent opportunity for band gap engineering for optoelectronic applications. The c-lattice constant of ZnO (5.205 Å) decreases by only 0.6% when the Mg content reaches x=0.39. The introduction of Mg into ZnO is shown to increase the relative PL intensity of stacking fault-related transitions (at 3.314 eV for ZnO). This becomes the dominant near band edge emission. Using TEM a thin Mg rich layer is observed at the interface between the film and the Si or Al2O3. Temperature dependent PL measurements on layers with low Mg concentration (x=0.05 and 0.1) show that the main bound exciton peak exhibits an “s-shaped” temperature dependence, characteristic of localization in a disordered alloy. The origin of the PL line broadening of MgxZn1-xO (x≤0.04) is also analyzed with respect to alloy broadening, taking into account a random cation distribution and alloy clustering. The influence of various MOCVD growth parameters such as growth temperature and VI/II ratio is studied. Varying the temperature from 280 ˚C to 580 ˚C reveals strong morphological changes and optical degradation of the films. Low (<280 ˚C) and high (>580 ˚C) growth temperatures reduce the Mg incorporation. High VI/II ratios also decrease the Mg incorporation, as evidenced by the red-shift of the donor bound exciton (D°X) line. This is ascribed to a stronger premature reaction between (MeCp)2Mg and the oxidant or a preferential heterogeneous interaction between the Mg and oxygen species on the growth front. For both oxidizing agents (O2 and TBOH), the growth at 420 ˚C and a VI-II ratio of 60 on c-Al2O3 gave optimal quality layers in terms of their optical and structural quality. A comparison of films grown using TBOH and O2 gas as oxidizing agent shows no major difference in terms of Mg incorporation. The effect of annealing, the inclusion of a buffer layer and the influence of growth rate on the properties MgxZn1-xO thin films are also reported.
- Full Text:
- Date Issued: 2011
Die outobiografiese kode in Antjie Krog se poëtiese oeuvre
- Authors: Botha, Maria Elizabeth
- Date: 2011
- Subjects: Krog, Antjie -- Criticism and interpretation , Autobiography -- History and criticism , Afrikaans poetry -- 20th century -- History and criticism
- Language: Afrikaans
- Type: Thesis , Doctoral , DLitt
- Identifier: vital:8444 , http://hdl.handle.net/10948/1534 , Krog, Antjie -- Criticism and interpretation , Autobiography -- History and criticism , Afrikaans poetry -- 20th century -- History and criticism
- Description: This study primarily investigates the autobiographical code in Antjie Krog's poetical oeuvre, spanning from 1970 to the present. Krog's poetry collections may be read as offering life writing through poetry, while the prose works mostly present the reader with a mixture of autobiographical fact plus creative reworkings of fact and fiction. Even though her 10 volumes of poetry follow her biological development from young girl to grandmother, uncertainty still exists about about where truth ends and fiction begins in this poet and autobiographer's interwoven tapestry of multiple and varied perspectives. Furthermore, autobiographical (as utilised and adapted in Krog's oeuvre, in combination with the conventioans from other genres), offers a variety of creatively innovative, experimental strategies and possibilities exploited adroitly by Krog. Reading her poetry with the focus on autobiographical markers leads to another, mostly untapped, dimension of interpretation. This literary approach is in stark contrast to the approach prescibed by N.P. van Wyk Louw in "Die 'mens' agter die boek" ["The 'Person' behind the Book] (1956), in which he states clearly that a text should be interpreted as not "about the human behind the text". To a large extent Krog as poet is inviting the reader to consciously break the taboo that Louw placed on the reader intent on "searching the actual person behind the text". My hypothesis is that in Krog's poetry there is a distinct interrelationship between the perceptions, experiences and sensual impressions of the lyrical "I" in the poems and that of the authobiographical "I" writing. It would be irresponsible to declare the poet and the speaker as one and the same, but in instances where the poet purposefully integrates autobiographical elements into her poems, she is implicitly requesting the reader to interpret her work in this way. This fictive and implicit request is referred to by Philippe Lejeune as the autobiographical poet. Krog's poetry can be divided into four categories: "direct autobiographical", "indirect autobiographical", "universal" and "general" poems. The first category involves criteria that are linked to the poet, such as the use of the names, initials and dates. Indirect autobiographical poems can be read against the background of knowledge (previously published information) about the poet. Poetry with no apparent autobiographical element, but with universal themes such as love, loss and transience, fall into the third category of "universal" poetry. If poems do not fit into the mentioned categories, they are deemed "general".
- Full Text:
- Date Issued: 2011
- Authors: Botha, Maria Elizabeth
- Date: 2011
- Subjects: Krog, Antjie -- Criticism and interpretation , Autobiography -- History and criticism , Afrikaans poetry -- 20th century -- History and criticism
- Language: Afrikaans
- Type: Thesis , Doctoral , DLitt
- Identifier: vital:8444 , http://hdl.handle.net/10948/1534 , Krog, Antjie -- Criticism and interpretation , Autobiography -- History and criticism , Afrikaans poetry -- 20th century -- History and criticism
- Description: This study primarily investigates the autobiographical code in Antjie Krog's poetical oeuvre, spanning from 1970 to the present. Krog's poetry collections may be read as offering life writing through poetry, while the prose works mostly present the reader with a mixture of autobiographical fact plus creative reworkings of fact and fiction. Even though her 10 volumes of poetry follow her biological development from young girl to grandmother, uncertainty still exists about about where truth ends and fiction begins in this poet and autobiographer's interwoven tapestry of multiple and varied perspectives. Furthermore, autobiographical (as utilised and adapted in Krog's oeuvre, in combination with the conventioans from other genres), offers a variety of creatively innovative, experimental strategies and possibilities exploited adroitly by Krog. Reading her poetry with the focus on autobiographical markers leads to another, mostly untapped, dimension of interpretation. This literary approach is in stark contrast to the approach prescibed by N.P. van Wyk Louw in "Die 'mens' agter die boek" ["The 'Person' behind the Book] (1956), in which he states clearly that a text should be interpreted as not "about the human behind the text". To a large extent Krog as poet is inviting the reader to consciously break the taboo that Louw placed on the reader intent on "searching the actual person behind the text". My hypothesis is that in Krog's poetry there is a distinct interrelationship between the perceptions, experiences and sensual impressions of the lyrical "I" in the poems and that of the authobiographical "I" writing. It would be irresponsible to declare the poet and the speaker as one and the same, but in instances where the poet purposefully integrates autobiographical elements into her poems, she is implicitly requesting the reader to interpret her work in this way. This fictive and implicit request is referred to by Philippe Lejeune as the autobiographical poet. Krog's poetry can be divided into four categories: "direct autobiographical", "indirect autobiographical", "universal" and "general" poems. The first category involves criteria that are linked to the poet, such as the use of the names, initials and dates. Indirect autobiographical poems can be read against the background of knowledge (previously published information) about the poet. Poetry with no apparent autobiographical element, but with universal themes such as love, loss and transience, fall into the third category of "universal" poetry. If poems do not fit into the mentioned categories, they are deemed "general".
- Full Text:
- Date Issued: 2011
Dismissal law in the education sector
- Authors: Myeki, Mfundo
- Date: 2011
- Subjects: Industrial relations -- South Africa , Labor laws and legislation , Employees -- Dismissal of -- Law and legislation , Labor contract -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10213 , http://hdl.handle.net/10948/1567 , Industrial relations -- South Africa , Labor laws and legislation , Employees -- Dismissal of -- Law and legislation , Labor contract -- South Africa
- Description: This treatise will therefore critically discuss fairness requirements in dismissal law within the context of the education sector from: i) the perspective of a dismissed employee; and ii) the perspective of an employer who wishes to dismiss employees fairly; and iii) the perspective of a deemed dismissal. It will be proper to flow this discussion from the premises of what should be considered procedural and substantive fairness in dismissals.
- Full Text:
- Date Issued: 2011
- Authors: Myeki, Mfundo
- Date: 2011
- Subjects: Industrial relations -- South Africa , Labor laws and legislation , Employees -- Dismissal of -- Law and legislation , Labor contract -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10213 , http://hdl.handle.net/10948/1567 , Industrial relations -- South Africa , Labor laws and legislation , Employees -- Dismissal of -- Law and legislation , Labor contract -- South Africa
- Description: This treatise will therefore critically discuss fairness requirements in dismissal law within the context of the education sector from: i) the perspective of a dismissed employee; and ii) the perspective of an employer who wishes to dismiss employees fairly; and iii) the perspective of a deemed dismissal. It will be proper to flow this discussion from the premises of what should be considered procedural and substantive fairness in dismissals.
- Full Text:
- Date Issued: 2011
Distributing intelligence in the wireless control of a mobile robot using a personal digital assistant
- Authors: Ophoff, Madri
- Date: 2011
- Subjects: Mobile robots , User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9598 , http://hdl.handle.net/10948/1355 , Mobile robots , User interfaces (Computer systems)
- Description: Personal Digital Assistants (PDAs) have recently become a popular component in mobile robots. This compact processing device with its touch screen, variety of built-in features, wireless technologies and affordability can perform various roles within a robotic system. Applications include low-cost prototype development, rapid prototyping, low-cost humanoid robots, robot control, robot vision systems, algorithm development, human-robot interaction, mobile user interfaces as well as wireless robot communication schemes. Limits on processing power, memory, battery life and screen size impact the usefulness of a PDA in some applications. In addition various implementation strategies exist, each with its own strengths and weaknesses. No comparison of the advantages and disadvantages of the different strategies and resulting architectures exist. This makes it difficult for designers to decide on the best use of a PDA within their mobile robot system. This dissertation examines and compares the available mobile robot architectures. A thorough literature study identifies robot projects using a PDA and examines how the designs incorporate a PDA and what purpose it fulfils within the system it forms part of. The dissertation categorises the architectures according to the role of the PDA within the robot system. The hypothesis is made that using a distributed control system architecture makes optimal use of the rich feature set gained from including a PDA in a robot system’s design and simultaneously overcomes the device’s inherent shortcomings. This architecture is developed into a novel distributed intelligence framework that is supported by a hybrid communications architecture, using two wireless connection schemes. A prototype implementation illustrates the framework and communications architecture in action. Various performance measurements are taken in a test scenario for an office robot. The results indicate that the proposed framework does deliver performance gains and is a viable alternative for future projects in this area.
- Full Text:
- Date Issued: 2011
- Authors: Ophoff, Madri
- Date: 2011
- Subjects: Mobile robots , User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9598 , http://hdl.handle.net/10948/1355 , Mobile robots , User interfaces (Computer systems)
- Description: Personal Digital Assistants (PDAs) have recently become a popular component in mobile robots. This compact processing device with its touch screen, variety of built-in features, wireless technologies and affordability can perform various roles within a robotic system. Applications include low-cost prototype development, rapid prototyping, low-cost humanoid robots, robot control, robot vision systems, algorithm development, human-robot interaction, mobile user interfaces as well as wireless robot communication schemes. Limits on processing power, memory, battery life and screen size impact the usefulness of a PDA in some applications. In addition various implementation strategies exist, each with its own strengths and weaknesses. No comparison of the advantages and disadvantages of the different strategies and resulting architectures exist. This makes it difficult for designers to decide on the best use of a PDA within their mobile robot system. This dissertation examines and compares the available mobile robot architectures. A thorough literature study identifies robot projects using a PDA and examines how the designs incorporate a PDA and what purpose it fulfils within the system it forms part of. The dissertation categorises the architectures according to the role of the PDA within the robot system. The hypothesis is made that using a distributed control system architecture makes optimal use of the rich feature set gained from including a PDA in a robot system’s design and simultaneously overcomes the device’s inherent shortcomings. This architecture is developed into a novel distributed intelligence framework that is supported by a hybrid communications architecture, using two wireless connection schemes. A prototype implementation illustrates the framework and communications architecture in action. Various performance measurements are taken in a test scenario for an office robot. The results indicate that the proposed framework does deliver performance gains and is a viable alternative for future projects in this area.
- Full Text:
- Date Issued: 2011
Dynamics of macrophytes in the East Kleinemonde, a small temporarily open/closed South Afrcan Estuary
- Authors: Riddin, Taryn
- Date: 2011
- Subjects: Estuaries -- South Africa -- East Kleinemonde
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10605 , http://hdl.handle.net/10948/1529 , Estuaries -- South Africa -- East Kleinemonde
- Description: The East Kleinemonde Estuary is one of 175 temporarily open/closed estuaries (TOCEs) that represent 70 percent of estuaries in South Africa. TOCEs are small (mostly less than 100 ha), shallow estuaries (average depth < 2 m) that respond quickly to freshwater inflow events. Their connection to the sea can be highly variable resulting in considerable changes in abiotic and biotic conditions. Mouth status depends on a balance between freshwater inflow and marine influence, which in turn affects ambient abiotic conditions. The objective of the study was to identify the abiotic variables which influence macrophyte growth and habitat availability. It was hypothesised that water level and salinity were the two main drivers of macrophyte change and macrophyte habitat would respond very rapidly, in less than a month, when habitat was available. Macrophyte habitats would also have high sediment seed reserves to ensure persistence under highly variable abiotic conditions. Macrophyte cover was monitored monthly in the East Kleinemonde Estuary along three permanent transects. The dominant habitats were submerged macrophytes, intertidal salt marsh, supratidal salt marsh, reeds and sedges. The following abiotic variables; water level, water column salinity, water temperature, Secchi depth, air temperature and rainfall were also measured between March 2006 and January 2010. Time-lag responses of the macrophytes to water level and salinity changes up to four months prior to the sampling session were also assessed. The analysis of a one year dataset highlighted only water level as a driver of change in macrophyte cover, whereas the five year dataset identified salinity as an additional important abiotic driver. This is because during September 2008 to January 2010 a series of large marine overwash events maintained high salinity (> 30 ppt) and high water level (> 1.6 m amsl) in the estuary. Water level increased by up to 0.33 m due to large volumetric changes and salinity was significantly higher in the 16 month closed euhaline phase after the breach (31 ± 0.9 ppt) compared to 21.9 ± 0.9 ppt in the closed polyhaline phase before the September 2008 breach. This increase in salinity significantly reduced the cover of the submerged macrophytes Ruppia cirrhosa and Chara vulgaris. They were replaced by macroalgae during this high salinity phase. The cover of supratidal salt marsh and reed habitats was also significantly reduced during the high water level phase, which in turn would lead to the potential for bank destabilisation and erosion. Based on the average elevation above sea level position of the macrophytes in the East Kleinemonde iv Estuary, a threshold water level was identified as 1.55 amsl. This was taken to be the height above sea level at which there was a maximum cover change for each macrophyte habitat. Above this water level emergent macrophyte habitat would mainly be inundated. This, together with 30 ppt salinity, was identified as the two thresholds for macrophyte change in the East Kleinemonde Estuary. From these thresholds and the 5 year dataset four biotic states were identified as State A: open and tidal, State B: closed with a water level below 1.55 m amsl and salinity between 18 to 30 ppt, State C: closed and water level above 1.55 m amsl and salinity between 18 to 30 ppt and State D: closed and water level above 1.55 m amsl and salinity above 30 ppt. Intertidal salt marsh, reeds and sedges were dominant during the open phase. Submerged macrophytes were dominant during the closed polyhaline state and macroalgae during the closed euhaline state. The high variability of abiotic factors common in TOCEs and the response of macrophyte habitat indicated that macrophytes were resilient to changing states provided they were of relatively short (< 3 months) duration. Macrophytes in the East Kleinemonde Estuary were found to have fast growth rates and large seed reserves in the sediment. The seed banks in the East Kleinemonde, as well as the adjacent temporarily open/closed West Kleinemonde Estuary were quantified for the first time in a South African estuary. The averaged data from both estuaries showed that Charophyte öospores represented almost 72 percent of the sexual propagules in the sediment with a mean öospore density of 31 306 ± 2 293 m-2. This was despite the Charophytes being sparsely located and only representing a maximum of 32.5 percent cover in the above ground vegetation. Historically there must have been stands of Charophytes in the East Kleinemonde Estuary, such that öospores could accumulate to such high density found in this study. The second highest seed density was for the intertidal salt marsh plant Sarcocornia tegetaria (18 percent) (7 929 ± 688 seed m-2), followed by the submerged angiosperm Ruppia cirrhosa (7 percent) (2 852 ± 327 seeds m-2). Although seed density did not differ significantly with sediment depth, seeds still occurred at 20 cm below the surface of the sediment providing a regeneration source in the event of sediment scouring during a flood event. Germination studies in the greenhouse showed that most seeds were viable and Sarcocornia tegetaria began to germinate after 3 days to a maximum of 82 percent after 91 days. Submerged species only germinated after 18 days with a low maximum germination of between 11 and 15 percent. This study has made an original contribution to the field of knowledge on macrophyte responses in a small TOCE as it showed that macrophyte habitats in the East Kleinemonde Estuary have a high natural variability in cover over time, they respond quickly after a disturbance event such as a mouth breach and there are large sediment seed reserves that remain viable from 2 to more than 5 years. This ensures habitat persistence even under unfavourable conditions, such as prolonged periods of mouth closure with high water level and flooding which causes loss of salt marsh species. Given this natural variability it is necessary to predict responses both spatially and temporally in order to manage and maintain ecological functioning in TOCEs. This study identified dominant macrophyte habitat for different abiotic states through the use of water level and salinity thresholds. In the determination of the freshwater requirements of any South African estuary freshwater inflow rates are provided for each estuary's past, present and possible future freshwater inflow scenarios. These flow data are generated by hydrological models and simulated monthly inflow volumes for a period of about 72 years are provided. For the East Kleinemonde freshwater requirement study for any year in that 70-odd year period, the number of high flow and low flow mouth breaches were predicted, as well as the closed state periods. The threshold water level of 1.55 m amsl was also used to filter past, present and future inflow monthly volumes to determine the frequency of the four abiotic states identified in this study. It was based on a water level/water volume equation calculation from a digital elevation model. Results showed that the total closed period in the present state was 83 percent, made up of 48 percent of the time in a polyhaline state (State C) and 35 percent in a euahaline state (State D). A second method was used to quantify available spatial habitat under different water level scenarios. A spatial model was written in Model Builder, an application in ArcGIS that allowed a series of processes to be built. A habitat map was overlaid with a bathymetric map and by selecting water level, available habitat areas were determined and empirical equations of water level versus available habitat were produced. These equations were then used to calculate the available habitat areas for monthly water level conditions from the freshwater requirement study for the past, present and two future inflow scenarios. Using both the threshold water level method and the spatial availability model method it was possible to assess the effect of the two future inflow scenarios on macrophyte habitat vi response. Scenario 1 had a 16 percent reduction in mean annual runoff (MAR) generating low flows for 88.6 percent of the time and a 3.5 percent reduction in flood events. In Scenario 2 there would be a 12 percent reduction in MAR with low flows occurring for 87.5 percent of the year, a 5.3 percent reduction in floods and an 11.5 percent reduction in the open mouth state. The model showed that Scenario 1 would have the highest submerged macrophyte area (12.56 ha versus 12.48 ha in Scenario 2), whereas Scenario 2 produced the largest mudflat and intertidal salt marsh area (7.11 ha versus 7.34 ha) due to lower water level in conjunction with the bathymetry of the estuary. A reduction in freshwater inflow to TOCEs either due to anthropogenic influences or natural precipitation cycles is one of the main threats to the optimum functioning of these estuaries. The results from this study and the two methods of assessing the effect of freshwater inflow scenarios on macrophytes in TOCEs can be integrated into the current freshwater inflow assessment methodology in South Africa, as well as adding to our understanding of the ecological functioning of these small, highly variable estuaries. The methods provide a quick assessment of macrophyte habitat associated with abiotic states under past, present and future inflow scenarios. All that is required to predict macrophyte habitat for different freshwater inflow scenarios (present, past and future) is a habitat map, a bathymetric map and the elevation range of macrophytes in the TOCE being assessed. This, together with the knowledge of response rates, provides invaluable information for the management of TOCEs to maintain their ecological functioning under altered freshwater inflow regimes.
- Full Text:
- Date Issued: 2011
- Authors: Riddin, Taryn
- Date: 2011
- Subjects: Estuaries -- South Africa -- East Kleinemonde
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10605 , http://hdl.handle.net/10948/1529 , Estuaries -- South Africa -- East Kleinemonde
- Description: The East Kleinemonde Estuary is one of 175 temporarily open/closed estuaries (TOCEs) that represent 70 percent of estuaries in South Africa. TOCEs are small (mostly less than 100 ha), shallow estuaries (average depth < 2 m) that respond quickly to freshwater inflow events. Their connection to the sea can be highly variable resulting in considerable changes in abiotic and biotic conditions. Mouth status depends on a balance between freshwater inflow and marine influence, which in turn affects ambient abiotic conditions. The objective of the study was to identify the abiotic variables which influence macrophyte growth and habitat availability. It was hypothesised that water level and salinity were the two main drivers of macrophyte change and macrophyte habitat would respond very rapidly, in less than a month, when habitat was available. Macrophyte habitats would also have high sediment seed reserves to ensure persistence under highly variable abiotic conditions. Macrophyte cover was monitored monthly in the East Kleinemonde Estuary along three permanent transects. The dominant habitats were submerged macrophytes, intertidal salt marsh, supratidal salt marsh, reeds and sedges. The following abiotic variables; water level, water column salinity, water temperature, Secchi depth, air temperature and rainfall were also measured between March 2006 and January 2010. Time-lag responses of the macrophytes to water level and salinity changes up to four months prior to the sampling session were also assessed. The analysis of a one year dataset highlighted only water level as a driver of change in macrophyte cover, whereas the five year dataset identified salinity as an additional important abiotic driver. This is because during September 2008 to January 2010 a series of large marine overwash events maintained high salinity (> 30 ppt) and high water level (> 1.6 m amsl) in the estuary. Water level increased by up to 0.33 m due to large volumetric changes and salinity was significantly higher in the 16 month closed euhaline phase after the breach (31 ± 0.9 ppt) compared to 21.9 ± 0.9 ppt in the closed polyhaline phase before the September 2008 breach. This increase in salinity significantly reduced the cover of the submerged macrophytes Ruppia cirrhosa and Chara vulgaris. They were replaced by macroalgae during this high salinity phase. The cover of supratidal salt marsh and reed habitats was also significantly reduced during the high water level phase, which in turn would lead to the potential for bank destabilisation and erosion. Based on the average elevation above sea level position of the macrophytes in the East Kleinemonde iv Estuary, a threshold water level was identified as 1.55 amsl. This was taken to be the height above sea level at which there was a maximum cover change for each macrophyte habitat. Above this water level emergent macrophyte habitat would mainly be inundated. This, together with 30 ppt salinity, was identified as the two thresholds for macrophyte change in the East Kleinemonde Estuary. From these thresholds and the 5 year dataset four biotic states were identified as State A: open and tidal, State B: closed with a water level below 1.55 m amsl and salinity between 18 to 30 ppt, State C: closed and water level above 1.55 m amsl and salinity between 18 to 30 ppt and State D: closed and water level above 1.55 m amsl and salinity above 30 ppt. Intertidal salt marsh, reeds and sedges were dominant during the open phase. Submerged macrophytes were dominant during the closed polyhaline state and macroalgae during the closed euhaline state. The high variability of abiotic factors common in TOCEs and the response of macrophyte habitat indicated that macrophytes were resilient to changing states provided they were of relatively short (< 3 months) duration. Macrophytes in the East Kleinemonde Estuary were found to have fast growth rates and large seed reserves in the sediment. The seed banks in the East Kleinemonde, as well as the adjacent temporarily open/closed West Kleinemonde Estuary were quantified for the first time in a South African estuary. The averaged data from both estuaries showed that Charophyte öospores represented almost 72 percent of the sexual propagules in the sediment with a mean öospore density of 31 306 ± 2 293 m-2. This was despite the Charophytes being sparsely located and only representing a maximum of 32.5 percent cover in the above ground vegetation. Historically there must have been stands of Charophytes in the East Kleinemonde Estuary, such that öospores could accumulate to such high density found in this study. The second highest seed density was for the intertidal salt marsh plant Sarcocornia tegetaria (18 percent) (7 929 ± 688 seed m-2), followed by the submerged angiosperm Ruppia cirrhosa (7 percent) (2 852 ± 327 seeds m-2). Although seed density did not differ significantly with sediment depth, seeds still occurred at 20 cm below the surface of the sediment providing a regeneration source in the event of sediment scouring during a flood event. Germination studies in the greenhouse showed that most seeds were viable and Sarcocornia tegetaria began to germinate after 3 days to a maximum of 82 percent after 91 days. Submerged species only germinated after 18 days with a low maximum germination of between 11 and 15 percent. This study has made an original contribution to the field of knowledge on macrophyte responses in a small TOCE as it showed that macrophyte habitats in the East Kleinemonde Estuary have a high natural variability in cover over time, they respond quickly after a disturbance event such as a mouth breach and there are large sediment seed reserves that remain viable from 2 to more than 5 years. This ensures habitat persistence even under unfavourable conditions, such as prolonged periods of mouth closure with high water level and flooding which causes loss of salt marsh species. Given this natural variability it is necessary to predict responses both spatially and temporally in order to manage and maintain ecological functioning in TOCEs. This study identified dominant macrophyte habitat for different abiotic states through the use of water level and salinity thresholds. In the determination of the freshwater requirements of any South African estuary freshwater inflow rates are provided for each estuary's past, present and possible future freshwater inflow scenarios. These flow data are generated by hydrological models and simulated monthly inflow volumes for a period of about 72 years are provided. For the East Kleinemonde freshwater requirement study for any year in that 70-odd year period, the number of high flow and low flow mouth breaches were predicted, as well as the closed state periods. The threshold water level of 1.55 m amsl was also used to filter past, present and future inflow monthly volumes to determine the frequency of the four abiotic states identified in this study. It was based on a water level/water volume equation calculation from a digital elevation model. Results showed that the total closed period in the present state was 83 percent, made up of 48 percent of the time in a polyhaline state (State C) and 35 percent in a euahaline state (State D). A second method was used to quantify available spatial habitat under different water level scenarios. A spatial model was written in Model Builder, an application in ArcGIS that allowed a series of processes to be built. A habitat map was overlaid with a bathymetric map and by selecting water level, available habitat areas were determined and empirical equations of water level versus available habitat were produced. These equations were then used to calculate the available habitat areas for monthly water level conditions from the freshwater requirement study for the past, present and two future inflow scenarios. Using both the threshold water level method and the spatial availability model method it was possible to assess the effect of the two future inflow scenarios on macrophyte habitat vi response. Scenario 1 had a 16 percent reduction in mean annual runoff (MAR) generating low flows for 88.6 percent of the time and a 3.5 percent reduction in flood events. In Scenario 2 there would be a 12 percent reduction in MAR with low flows occurring for 87.5 percent of the year, a 5.3 percent reduction in floods and an 11.5 percent reduction in the open mouth state. The model showed that Scenario 1 would have the highest submerged macrophyte area (12.56 ha versus 12.48 ha in Scenario 2), whereas Scenario 2 produced the largest mudflat and intertidal salt marsh area (7.11 ha versus 7.34 ha) due to lower water level in conjunction with the bathymetry of the estuary. A reduction in freshwater inflow to TOCEs either due to anthropogenic influences or natural precipitation cycles is one of the main threats to the optimum functioning of these estuaries. The results from this study and the two methods of assessing the effect of freshwater inflow scenarios on macrophytes in TOCEs can be integrated into the current freshwater inflow assessment methodology in South Africa, as well as adding to our understanding of the ecological functioning of these small, highly variable estuaries. The methods provide a quick assessment of macrophyte habitat associated with abiotic states under past, present and future inflow scenarios. All that is required to predict macrophyte habitat for different freshwater inflow scenarios (present, past and future) is a habitat map, a bathymetric map and the elevation range of macrophytes in the TOCE being assessed. This, together with the knowledge of response rates, provides invaluable information for the management of TOCEs to maintain their ecological functioning under altered freshwater inflow regimes.
- Full Text:
- Date Issued: 2011
E-commerce as an alternative marketing channel
- Authors: Mounsear-Wilson, Clifford
- Date: 2011
- Subjects: Electronic commerce -- South Africa -- Eastern Cape , Internet marketing -- South Africa -- Eastern Cape , Electronic commerce -- Technological innovations -- South Africa -- Eastern Cape , Organizational effectiveness -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8605 , http://hdl.handle.net/10948/1615 , Electronic commerce -- South Africa -- Eastern Cape , Internet marketing -- South Africa -- Eastern Cape , Electronic commerce -- Technological innovations -- South Africa -- Eastern Cape , Organizational effectiveness -- South Africa -- Eastern Cape
- Description: Information technology (IT) has become an integral part of the success and globalisation of business over the last two decades. It is hard to imagine how the efficiencies expected in today’s fast paced business world could possibly be achieved without the advancements in IT. The most significant of these advancements is arguably the advent of the Internet which has empowered businesses of all sizes by giving them the means to promote their products and services at a relatively low cost in markets that would previously have been inaccessible. The aim of this study was to assess whether e-commerce represents an alternative channel for a brick and mortar company wishing to follow a market penetration strategy. The study was based around a company, Canoa Eastern Cape, which trades in the office automation industry in the Eastern and Southern Cape of South Africa. The study investigated the history of Canoa Eastern Cape, focusing predominantly on the growth strategies followed by the business in the past. With a view to the future, growth strategies which could potentially be followed by Canoa Eastern Cape were also investigated. The result of these investigations was a recommendation that Canoa Eastern Cape should follow a market penetration strategy, which will see the business marketing its existing products within its current market by making use of a new distribution channel, more specifically e-commerce. In order to assess the suitability of e-commerce as a tool within a market penetration strategy a literature study was conducted to get a better understanding of ecommerce and its viability as business tool. The literature study focused on eight core concepts felt to be critical in the evaluation of e-commerce, namely: • the development of e-commerce over the past years; • the future of e-commerce; • whether e-commerce is a financial success or not; • requirements for e-commerce to be successful; iv • products that customers are prepared to buy online; • industries most affected by e-commerce; and • demographics of e-commerce users; and • e-commerce in the office automation industry. Using the information gained in the literature study as a basis from which to start, an empirical study was conducted. The objective of the empirical study was to obtain data which would be used to assess the level to which e-commerce has been adopted by consumers in the specific geographic area and whether these consumers are willing and able to make use of e-commerce as an alternative to conventional purchasing for the procurement of office automation consumables and office automation equipment. A quantitative research paradigm was adopted, making use of a structured questionnaire to gather information from the sample of Canoa Eastern Cape’s customers. The data collected from the empirical study were analysed using univariate and bivariate analysis. The findings of the empirical study suggested that: • demographics are a poor indicator of adoption of e-commerce; • there is a significant adoption rate within the sample: o 79.85 percent of the respondents reported to have used e-commerce before for personal use; and o 59.13 percentreported to have used e-commerce before for business use; • there is a high rate of willingness to use e-commerce again: o 91.09 percent of the respondents indicating that they would use e-commerce again for personal use; and o 80.18 percent indicating that they would use e-commerce again for business use; • there is a high likelihood that consumers will buy office automation consumables through an e-commerce channel, with 65.82 percentof the respondents indicating that they would be likely or very likely to buy consumables through an e-commerce channel; • there is no significant difference in the adoption rates between the three main areas within the targeted sample, that is, East London, Port Elizabeth and George and Knysna. Given the findings of the empirical study it is felt that an e-commerce solution does present a viable alternative channel for a brick and mortar company trading in the Office Automation Industry in the Eastern and Southern Cape wishing to follow a market penetration strategy.
- Full Text:
- Date Issued: 2011
- Authors: Mounsear-Wilson, Clifford
- Date: 2011
- Subjects: Electronic commerce -- South Africa -- Eastern Cape , Internet marketing -- South Africa -- Eastern Cape , Electronic commerce -- Technological innovations -- South Africa -- Eastern Cape , Organizational effectiveness -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8605 , http://hdl.handle.net/10948/1615 , Electronic commerce -- South Africa -- Eastern Cape , Internet marketing -- South Africa -- Eastern Cape , Electronic commerce -- Technological innovations -- South Africa -- Eastern Cape , Organizational effectiveness -- South Africa -- Eastern Cape
- Description: Information technology (IT) has become an integral part of the success and globalisation of business over the last two decades. It is hard to imagine how the efficiencies expected in today’s fast paced business world could possibly be achieved without the advancements in IT. The most significant of these advancements is arguably the advent of the Internet which has empowered businesses of all sizes by giving them the means to promote their products and services at a relatively low cost in markets that would previously have been inaccessible. The aim of this study was to assess whether e-commerce represents an alternative channel for a brick and mortar company wishing to follow a market penetration strategy. The study was based around a company, Canoa Eastern Cape, which trades in the office automation industry in the Eastern and Southern Cape of South Africa. The study investigated the history of Canoa Eastern Cape, focusing predominantly on the growth strategies followed by the business in the past. With a view to the future, growth strategies which could potentially be followed by Canoa Eastern Cape were also investigated. The result of these investigations was a recommendation that Canoa Eastern Cape should follow a market penetration strategy, which will see the business marketing its existing products within its current market by making use of a new distribution channel, more specifically e-commerce. In order to assess the suitability of e-commerce as a tool within a market penetration strategy a literature study was conducted to get a better understanding of ecommerce and its viability as business tool. The literature study focused on eight core concepts felt to be critical in the evaluation of e-commerce, namely: • the development of e-commerce over the past years; • the future of e-commerce; • whether e-commerce is a financial success or not; • requirements for e-commerce to be successful; iv • products that customers are prepared to buy online; • industries most affected by e-commerce; and • demographics of e-commerce users; and • e-commerce in the office automation industry. Using the information gained in the literature study as a basis from which to start, an empirical study was conducted. The objective of the empirical study was to obtain data which would be used to assess the level to which e-commerce has been adopted by consumers in the specific geographic area and whether these consumers are willing and able to make use of e-commerce as an alternative to conventional purchasing for the procurement of office automation consumables and office automation equipment. A quantitative research paradigm was adopted, making use of a structured questionnaire to gather information from the sample of Canoa Eastern Cape’s customers. The data collected from the empirical study were analysed using univariate and bivariate analysis. The findings of the empirical study suggested that: • demographics are a poor indicator of adoption of e-commerce; • there is a significant adoption rate within the sample: o 79.85 percent of the respondents reported to have used e-commerce before for personal use; and o 59.13 percentreported to have used e-commerce before for business use; • there is a high rate of willingness to use e-commerce again: o 91.09 percent of the respondents indicating that they would use e-commerce again for personal use; and o 80.18 percent indicating that they would use e-commerce again for business use; • there is a high likelihood that consumers will buy office automation consumables through an e-commerce channel, with 65.82 percentof the respondents indicating that they would be likely or very likely to buy consumables through an e-commerce channel; • there is no significant difference in the adoption rates between the three main areas within the targeted sample, that is, East London, Port Elizabeth and George and Knysna. Given the findings of the empirical study it is felt that an e-commerce solution does present a viable alternative channel for a brick and mortar company trading in the Office Automation Industry in the Eastern and Southern Cape wishing to follow a market penetration strategy.
- Full Text:
- Date Issued: 2011
Educating users about information security by means of game play
- Authors: Monk, Thomas Philippus
- Date: 2011
- Subjects: Computer security , Educational games -- Design , Computer networks -- Security measures
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9748 , http://hdl.handle.net/10948/1493 , Computer security , Educational games -- Design , Computer networks -- Security measures
- Description: Information is necessary for any business to function. However, if one does not manage one’s information assets properly then one’s business is likely to be at risk. By implementing Information Security controls, procedures, and/or safeguards one can secure information assets against risks. The risks of an organisation can be mitigated if employees implement safety measures. However, employees are often unable to work securely due to a lack of knowledge. This dissertation evaluates the premise that a computer game could be used to educate employees about Information Security. A game was developed with the aim of educating employees in this regard. If people were motivated to play the game, without external motivation from an organisation, then people would also, indirectly, be motivated to learn about Information Security. Therefore, a secondary aim of this game was to be self-motivating. An experiment was conducted in order to test whether or not these aims were met. The experiment was conducted on a play test group and a control group. The play test group played the game before completing a questionnaire that tested the information security knowledge of participants, while the control group simply completed the questionnaire. The two groups’ answers were compared in order to obtain results. This dissertation discusses the research design of the experiment and also provides an analysis of the results. The game design will be discussed which provides guidelines for future game designers to follow. The experiment indicated that the game is motivational, but perhaps not educational enough. However, the results suggest that a computer game can still be used to teach users about Information Security. Factors that involved consequence and repetition contributed towards the educational value of the game, whilst competitiveness and rewards contributed to the motivational aspect of the game.
- Full Text:
- Date Issued: 2011
- Authors: Monk, Thomas Philippus
- Date: 2011
- Subjects: Computer security , Educational games -- Design , Computer networks -- Security measures
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9748 , http://hdl.handle.net/10948/1493 , Computer security , Educational games -- Design , Computer networks -- Security measures
- Description: Information is necessary for any business to function. However, if one does not manage one’s information assets properly then one’s business is likely to be at risk. By implementing Information Security controls, procedures, and/or safeguards one can secure information assets against risks. The risks of an organisation can be mitigated if employees implement safety measures. However, employees are often unable to work securely due to a lack of knowledge. This dissertation evaluates the premise that a computer game could be used to educate employees about Information Security. A game was developed with the aim of educating employees in this regard. If people were motivated to play the game, without external motivation from an organisation, then people would also, indirectly, be motivated to learn about Information Security. Therefore, a secondary aim of this game was to be self-motivating. An experiment was conducted in order to test whether or not these aims were met. The experiment was conducted on a play test group and a control group. The play test group played the game before completing a questionnaire that tested the information security knowledge of participants, while the control group simply completed the questionnaire. The two groups’ answers were compared in order to obtain results. This dissertation discusses the research design of the experiment and also provides an analysis of the results. The game design will be discussed which provides guidelines for future game designers to follow. The experiment indicated that the game is motivational, but perhaps not educational enough. However, the results suggest that a computer game can still be used to teach users about Information Security. Factors that involved consequence and repetition contributed towards the educational value of the game, whilst competitiveness and rewards contributed to the motivational aspect of the game.
- Full Text:
- Date Issued: 2011
Effectiveness of ICT education in the Northern school area of Port Elizabeth
- Authors: Mooi, Alicia Tenjiswa
- Date: 2011
- Subjects: Educational technology -- South Africa -- Eastern Cape , Computer-assisted instruction -- South Africa -- Eastern Cape , Educational innovations -- Technological innovations -- South Africa -- Eastern Cape , Communication -- Technological innovations
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9049 , http://hdl.handle.net/10948/1605 , Educational technology -- South Africa -- Eastern Cape , Computer-assisted instruction -- South Africa -- Eastern Cape , Educational innovations -- Technological innovations -- South Africa -- Eastern Cape , Communication -- Technological innovations
- Description: The use of information communication technology in the 21st Century is very important. The skills and knowledge of using these technologies should start at high school level, as it is at this stage where learners are equipped for tertiary education and the business world. This study seeks to answer how much ICT is used at the average school in Port Elizabeth and how effective such use is. South Africa is one of the countries in the whole world that is still behind in using the new technology. Learners from high school still enter university with no knowledge of how to use a computer. This becomes a problem in the world of technology as almost everything is done using technology. It also becomes a big problem when learners look for jobs in the business world. An active learning theory has been used on the study because, if learners can learn and have access computer at school, life will be easy for both learners and teachers, there would be co-operation and discussion and the fast way of doing school work. For the purpose of the study a qualitative research method has been used to ensure that answers are received straight from, teachers and learners for evidence. It is therefore clear that there are schools in South Africa that still needs the attention of the government in terms of getting access to computers and to have professional teachers for teaching the subject. The government has a responsibility of making sure that all learners and teachers in high schools have access to computers and internet. This will improve the working and learning conditions of both parties involved.
- Full Text:
- Date Issued: 2011
- Authors: Mooi, Alicia Tenjiswa
- Date: 2011
- Subjects: Educational technology -- South Africa -- Eastern Cape , Computer-assisted instruction -- South Africa -- Eastern Cape , Educational innovations -- Technological innovations -- South Africa -- Eastern Cape , Communication -- Technological innovations
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9049 , http://hdl.handle.net/10948/1605 , Educational technology -- South Africa -- Eastern Cape , Computer-assisted instruction -- South Africa -- Eastern Cape , Educational innovations -- Technological innovations -- South Africa -- Eastern Cape , Communication -- Technological innovations
- Description: The use of information communication technology in the 21st Century is very important. The skills and knowledge of using these technologies should start at high school level, as it is at this stage where learners are equipped for tertiary education and the business world. This study seeks to answer how much ICT is used at the average school in Port Elizabeth and how effective such use is. South Africa is one of the countries in the whole world that is still behind in using the new technology. Learners from high school still enter university with no knowledge of how to use a computer. This becomes a problem in the world of technology as almost everything is done using technology. It also becomes a big problem when learners look for jobs in the business world. An active learning theory has been used on the study because, if learners can learn and have access computer at school, life will be easy for both learners and teachers, there would be co-operation and discussion and the fast way of doing school work. For the purpose of the study a qualitative research method has been used to ensure that answers are received straight from, teachers and learners for evidence. It is therefore clear that there are schools in South Africa that still needs the attention of the government in terms of getting access to computers and to have professional teachers for teaching the subject. The government has a responsibility of making sure that all learners and teachers in high schools have access to computers and internet. This will improve the working and learning conditions of both parties involved.
- Full Text:
- Date Issued: 2011