The teachers’ perceptions of female principal leadership: a case study of two primary schools in the East London district
- Authors: Webu, Kiki Corrina
- Date: 2014
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: http://hdl.handle.net/10353/1399 , vital:26552
- Description: In the South African context, the leadership positions in both public and private sectors are dominated by males. After 1994, there was an improvement in the employment of females in leadership positions, particularly in the Department of Education. But the female principals are still facing challenges that emanate from them, as well as extrinsic challenges. Studies highlighted leadership traits, leadership styles, the teachers‟ attitudes, prejudice and gender stereotypes that contribute towards female principalship challenges.This study focused on the perceptions of teachers of female principal leadership in two primary schools. Furthermore, it highlighted limitations as well as successes of female principal leader as perceived by the teachers. The qualitative research approach was used to investigate the perceptions of teachers in terms of the limitations and successes of female principal leaders. A case study of two primary schools with six Post Level One teachers across the phases and two Heads of Department (HODs) was conducted. One-to-one semi-structured interviews were used as qualitative research tools to collect data from the teachers. The findings of this study revealed that the female principals demonstrated two sides in their leadership, the positive side and the negative side. The respondents had expectations that the female principals would be more nurturing in character when they encountered personal problems. The respondents became happy when the female principals demonstrate the motherly traits such as warmth, care and love to them when they had personal problems. The female principal demonstrates sympathy and humanity by being there when the teacher is experiencing personal problems and shows interest in how the teacher is feeling. On the other hand, the respondents claimed that they did not feel that quality of motherhood when the female principal was not protecting them against angry parents. The respondents also perceived the female principals as being competent in solving the personal problems of teachers while, on the other hand, they were not able to solve the school problems. The respondents felt that the female principals showed little interest in the learners‟ wellbeing with regard to issues such as bursaries and involvement of social workers.
- Full Text:
- Date Issued: 2014
- Authors: Webu, Kiki Corrina
- Date: 2014
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: http://hdl.handle.net/10353/1399 , vital:26552
- Description: In the South African context, the leadership positions in both public and private sectors are dominated by males. After 1994, there was an improvement in the employment of females in leadership positions, particularly in the Department of Education. But the female principals are still facing challenges that emanate from them, as well as extrinsic challenges. Studies highlighted leadership traits, leadership styles, the teachers‟ attitudes, prejudice and gender stereotypes that contribute towards female principalship challenges.This study focused on the perceptions of teachers of female principal leadership in two primary schools. Furthermore, it highlighted limitations as well as successes of female principal leader as perceived by the teachers. The qualitative research approach was used to investigate the perceptions of teachers in terms of the limitations and successes of female principal leaders. A case study of two primary schools with six Post Level One teachers across the phases and two Heads of Department (HODs) was conducted. One-to-one semi-structured interviews were used as qualitative research tools to collect data from the teachers. The findings of this study revealed that the female principals demonstrated two sides in their leadership, the positive side and the negative side. The respondents had expectations that the female principals would be more nurturing in character when they encountered personal problems. The respondents became happy when the female principals demonstrate the motherly traits such as warmth, care and love to them when they had personal problems. The female principal demonstrates sympathy and humanity by being there when the teacher is experiencing personal problems and shows interest in how the teacher is feeling. On the other hand, the respondents claimed that they did not feel that quality of motherhood when the female principal was not protecting them against angry parents. The respondents also perceived the female principals as being competent in solving the personal problems of teachers while, on the other hand, they were not able to solve the school problems. The respondents felt that the female principals showed little interest in the learners‟ wellbeing with regard to issues such as bursaries and involvement of social workers.
- Full Text:
- Date Issued: 2014
Linking satellite and point micrometeorological data to estimate : distributed evapotranspiration modelling based on MODIS LAI, Penman-Monteith and functional convergence theory
- Authors: Weideman, Craig Ivan
- Date: 2014
- Subjects: Plants -- Water requirements -- South Africa , Evaporation (Meteorology) -- Measurement , Satellite meteorology , Micrometeorology , Evapotranspiration , MODIS (Spectroradiometer)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4779 , http://hdl.handle.net/10962/d1012078 , Plants -- Water requirements -- South Africa , Evaporation (Meteorology) -- Measurement , Satellite meteorology , Micrometeorology , Evapotranspiration , MODIS (Spectroradiometer)
- Description: Recent advances in satellite sensor technology and micrometeorological instrumentation for water flux measurement, coupled with the expansion of automatic weather station networks that provide routine measurements of near-surface climate variables, present new opportunities for combining satellite and ground-based instrumentation to obtain distributed estimates of vegetation water use over wide areas in South Africa. In this study, a novel approach is tested, which uses satellite leaf area index (LAI) data retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) to inform the FAO-56 Penman-Monteith equation for calculating reference evaporation (ET₀) of vegetation phenological activity. The model (ETMODIS) was validated at four sites in three different ecosystems across the country, including semi-arid savanna near Skukuza, mixed community grassland at Bellevue, near Pietermaritzburg, and Groenkop, a mixed evergreen indigenous forest near George, to determine potential for application over wider areas of the South African land surface towards meeting water resource management objectives. At Skukuza, evaluated against 170 days of flux data measured at a permanent eddy covariance (EC) flux tower in 2007, the model (ETMODIS) predicted 194.8 mm evapotranspiration relative to 148.9 mm measured fluxes, an overestimate of 31.7 %, (r² = 0.67). At an adjacent site, evaluated against flux data measured on two discrete periods of seven and eight days in February and May of 2005 using a large aperture scintillometer (SLS), ETMODIS predicted 27.4 mm and 6.7 mm evapotranspiration respectively, relative to measured fluxes of 32.5 and 8.2 mm, underestimates of 15.7 % and 18.3 % in each case (r² = 0.67 and 0.34, respectively). At Bellevue, evaluated against 235 days of evapotranspiration data measured using a surface layer scintillometer (SLS) in 2003, ETMODIS predicted 266.9 mm evapotranspiration relative to 460.2 mm measured fluxes, an underestimate of 42 % (r² = 0.67). At Groenkop, evaluated against data measured using a SLS over three discrete periods of four, seven and seven days in February, June and September/October respectively, ETMODIS predicted 9.7 mm, 10.3 mm and 17.0 mm evapotranspiration, relative to measured fluxes of 10.9 mm, 14.6 mm and 23. 9 mm, underestimates of 22.4 %, 11.2 % and 24.1 % in each case (r² = 0.98, 0.43 and 0.80, respectively). Total measured evapotranspiration exceeded total modelled evapotranspiration in all cases, with the exception of the flux tower site at Skukuza, where evapotranspiration was overestimated by ETMODIS by 31.7 % relative to measured (EC) values for the 170 days in 2007 where corresponding modelled and measured data were available. The most significant differences in measured versus predicted data were recorded at the Skukuza flux tower site in 2007 (31.7 % overestimate), and the Bellevue SLS flux site in 2003 (42 % underestimate); coefficients of determination, a measure of the extent to which modelled data are able to explain observed data at validation periods, with just two exceptions, were within a range of 0.67 – 0.98. Several sources of error and uncertainty were identified, relating predominantly to uncertainties in measured flux data used to evaluate ETMODIS, uncertainties in MODIS LAI submitted to ETMODIS, and uncertainties in ETMODIS itself, including model assumptions, and specific uncertainties relating to various inputs; further application of the model is required to test these uncertainties however, and establish confidence limits in performance. Nevertheless, the results of this study suggest that the technique is generally able to produce estimates of vegetation water use to within reasonably close approximations of measurements acquired using micrometeorological instruments, with r² values within the range of other peer-reviewed satellite remote sensing-based approaches.
- Full Text:
- Date Issued: 2014
- Authors: Weideman, Craig Ivan
- Date: 2014
- Subjects: Plants -- Water requirements -- South Africa , Evaporation (Meteorology) -- Measurement , Satellite meteorology , Micrometeorology , Evapotranspiration , MODIS (Spectroradiometer)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4779 , http://hdl.handle.net/10962/d1012078 , Plants -- Water requirements -- South Africa , Evaporation (Meteorology) -- Measurement , Satellite meteorology , Micrometeorology , Evapotranspiration , MODIS (Spectroradiometer)
- Description: Recent advances in satellite sensor technology and micrometeorological instrumentation for water flux measurement, coupled with the expansion of automatic weather station networks that provide routine measurements of near-surface climate variables, present new opportunities for combining satellite and ground-based instrumentation to obtain distributed estimates of vegetation water use over wide areas in South Africa. In this study, a novel approach is tested, which uses satellite leaf area index (LAI) data retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) to inform the FAO-56 Penman-Monteith equation for calculating reference evaporation (ET₀) of vegetation phenological activity. The model (ETMODIS) was validated at four sites in three different ecosystems across the country, including semi-arid savanna near Skukuza, mixed community grassland at Bellevue, near Pietermaritzburg, and Groenkop, a mixed evergreen indigenous forest near George, to determine potential for application over wider areas of the South African land surface towards meeting water resource management objectives. At Skukuza, evaluated against 170 days of flux data measured at a permanent eddy covariance (EC) flux tower in 2007, the model (ETMODIS) predicted 194.8 mm evapotranspiration relative to 148.9 mm measured fluxes, an overestimate of 31.7 %, (r² = 0.67). At an adjacent site, evaluated against flux data measured on two discrete periods of seven and eight days in February and May of 2005 using a large aperture scintillometer (SLS), ETMODIS predicted 27.4 mm and 6.7 mm evapotranspiration respectively, relative to measured fluxes of 32.5 and 8.2 mm, underestimates of 15.7 % and 18.3 % in each case (r² = 0.67 and 0.34, respectively). At Bellevue, evaluated against 235 days of evapotranspiration data measured using a surface layer scintillometer (SLS) in 2003, ETMODIS predicted 266.9 mm evapotranspiration relative to 460.2 mm measured fluxes, an underestimate of 42 % (r² = 0.67). At Groenkop, evaluated against data measured using a SLS over three discrete periods of four, seven and seven days in February, June and September/October respectively, ETMODIS predicted 9.7 mm, 10.3 mm and 17.0 mm evapotranspiration, relative to measured fluxes of 10.9 mm, 14.6 mm and 23. 9 mm, underestimates of 22.4 %, 11.2 % and 24.1 % in each case (r² = 0.98, 0.43 and 0.80, respectively). Total measured evapotranspiration exceeded total modelled evapotranspiration in all cases, with the exception of the flux tower site at Skukuza, where evapotranspiration was overestimated by ETMODIS by 31.7 % relative to measured (EC) values for the 170 days in 2007 where corresponding modelled and measured data were available. The most significant differences in measured versus predicted data were recorded at the Skukuza flux tower site in 2007 (31.7 % overestimate), and the Bellevue SLS flux site in 2003 (42 % underestimate); coefficients of determination, a measure of the extent to which modelled data are able to explain observed data at validation periods, with just two exceptions, were within a range of 0.67 – 0.98. Several sources of error and uncertainty were identified, relating predominantly to uncertainties in measured flux data used to evaluate ETMODIS, uncertainties in MODIS LAI submitted to ETMODIS, and uncertainties in ETMODIS itself, including model assumptions, and specific uncertainties relating to various inputs; further application of the model is required to test these uncertainties however, and establish confidence limits in performance. Nevertheless, the results of this study suggest that the technique is generally able to produce estimates of vegetation water use to within reasonably close approximations of measurements acquired using micrometeorological instruments, with r² values within the range of other peer-reviewed satellite remote sensing-based approaches.
- Full Text:
- Date Issued: 2014
Factors influencing ecological sustainability in the ostrich industry in the Little Karoo, South Africa
- Authors: Wheeler, Anita
- Date: 2014
- Subjects: Ostrich farms -- South Africa -- Little Karoo , Land degradation -- South Africa -- Little Karoo , Land use -- South Africa -- Little Karoo , Land degradation -- Environmental aspects -- South Africa -- Little Karoo , Conservation of natural resources -- South Africa -- Little Karoo , Sustainable development -- South Africa -- Little Karoo , Sustainable agriculture -- South Africa -- Little Karoo
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4259 , http://hdl.handle.net/10962/d1011741 , Ostrich farms -- South Africa -- Little Karoo , Land degradation -- South Africa -- Little Karoo , Land use -- South Africa -- Little Karoo , Land degradation -- Environmental aspects -- South Africa -- Little Karoo , Conservation of natural resources -- South Africa -- Little Karoo , Sustainable development -- South Africa -- Little Karoo , Sustainable agriculture -- South Africa -- Little Karoo
- Description: The Little Karoo, situated in the Succulent Karoo biome of South Africa, has been heavily transformed by land use, and only 8.6% of the remaining natural vegetation is considered to be intact. There is ample evidence that the main cause of degradation is the overstocking of ostriches, an industry that has been the major economic driver of the area for more than 150 years. The ostrich stocking rate currently recommended is 22 ha.ostrich⁻¹. A literature review was used to examine the evidence, assumptions and rationale on which recommended and actually implemented stocking rates for ostriches are based. No experimental evidence using ostriches was found that supported the recommended stocking rate as either ecologically or economically sustainable. From the literature, there appears to be a wide gap between what are considered to be economically and ecologically sustainable stocking rates, with the implication that these two aims may be impossible to reconcile when practicing ostrich farming on natural veld. A comparison of recommended with actual stocking rates among land managers in the Little Karoo showed that all land managers far exceeded the recommended agricultural stocking rate of 22.8 ha.ostrich⁻¹. However, the stocking rates reported by land managers to the South African Ostrich Business Chamber were found to accurately reflect actual numbers determined when whole flocks had to be slaughtered after an outbreak of avian influenza. The recommended stocking rate appeared to be irrelevant to ostrich flock breeders and there appeared to be a trade-off between profitable ostrich farming and sustainable land-use practices. This study also investigated the attitudes and behaviour of ostrich farmers. It was found that environmental attitude is most likely the most important characteristic of a land manager to ensure positive conservation behaviour. This characteristic was most prominent in younger land managers with larger farms. The last component of the study integrated the context and complexity of the long term social, economic and ecological sustainability of this industry through the development of a logic model. The results showed a general lack of linkages between industry elements which impact on achieving sustainability targets. Greater collaboration between industry role-players, organized agriculture and conservation organizations is required to find a balance between utilization and conservation in the ostrich industry.
- Full Text:
- Date Issued: 2014
- Authors: Wheeler, Anita
- Date: 2014
- Subjects: Ostrich farms -- South Africa -- Little Karoo , Land degradation -- South Africa -- Little Karoo , Land use -- South Africa -- Little Karoo , Land degradation -- Environmental aspects -- South Africa -- Little Karoo , Conservation of natural resources -- South Africa -- Little Karoo , Sustainable development -- South Africa -- Little Karoo , Sustainable agriculture -- South Africa -- Little Karoo
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4259 , http://hdl.handle.net/10962/d1011741 , Ostrich farms -- South Africa -- Little Karoo , Land degradation -- South Africa -- Little Karoo , Land use -- South Africa -- Little Karoo , Land degradation -- Environmental aspects -- South Africa -- Little Karoo , Conservation of natural resources -- South Africa -- Little Karoo , Sustainable development -- South Africa -- Little Karoo , Sustainable agriculture -- South Africa -- Little Karoo
- Description: The Little Karoo, situated in the Succulent Karoo biome of South Africa, has been heavily transformed by land use, and only 8.6% of the remaining natural vegetation is considered to be intact. There is ample evidence that the main cause of degradation is the overstocking of ostriches, an industry that has been the major economic driver of the area for more than 150 years. The ostrich stocking rate currently recommended is 22 ha.ostrich⁻¹. A literature review was used to examine the evidence, assumptions and rationale on which recommended and actually implemented stocking rates for ostriches are based. No experimental evidence using ostriches was found that supported the recommended stocking rate as either ecologically or economically sustainable. From the literature, there appears to be a wide gap between what are considered to be economically and ecologically sustainable stocking rates, with the implication that these two aims may be impossible to reconcile when practicing ostrich farming on natural veld. A comparison of recommended with actual stocking rates among land managers in the Little Karoo showed that all land managers far exceeded the recommended agricultural stocking rate of 22.8 ha.ostrich⁻¹. However, the stocking rates reported by land managers to the South African Ostrich Business Chamber were found to accurately reflect actual numbers determined when whole flocks had to be slaughtered after an outbreak of avian influenza. The recommended stocking rate appeared to be irrelevant to ostrich flock breeders and there appeared to be a trade-off between profitable ostrich farming and sustainable land-use practices. This study also investigated the attitudes and behaviour of ostrich farmers. It was found that environmental attitude is most likely the most important characteristic of a land manager to ensure positive conservation behaviour. This characteristic was most prominent in younger land managers with larger farms. The last component of the study integrated the context and complexity of the long term social, economic and ecological sustainability of this industry through the development of a logic model. The results showed a general lack of linkages between industry elements which impact on achieving sustainability targets. Greater collaboration between industry role-players, organized agriculture and conservation organizations is required to find a balance between utilization and conservation in the ostrich industry.
- Full Text:
- Date Issued: 2014
A framework for business leadership in Africa
- Authors: Whitley, Elwyn
- Date: 2014
- Subjects: Leadership -- Africa Success in business , Management -- Africa Business Industrial management -- Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/45814 , vital:39219
- Description: In a fast moving, rapidly changing and highly competitive world the importance of strong leadership in both government and business cannot be over emphasised. The realisation that leadership is necessary for the organisation’s success and is key for the organisation’s survival (Alimo-Metcalfe and Alban- Metcalfe, 2008) is evident in the increasing focus on the concept over the last three to four decades. As the world becomes more of a ‘global village’ adapting to doing business in this new environment will require a leader who not only has the traditional skills set but also has the additional knowledge, skills and “mindset to navigate through the complexities brought on by moving beyond one's traditional borders” (Cohen, 2010. p. 3). This is of particular importance to Africa with the influx of foreign investors attracted by the growth opportunities that Africa offers, looking to expand their markets and in doing so imposing western norms and standards on local operations, in complex environments. Unfortunately Western leadership theories have not always been successful as Africans have found that in order to embrace Western ideals they need to relinquish some of their own beliefs. This highlights an opportunity to explore a possible hybrid leadership approach that harmonises the Western approach that is based on facts, logic and the nature of reality with the African humanistic orientation. The main aim of this study is to research the concept, principles, and characteristics of a small sample of business leaders in Africa in order to identify the factors that contribute to the leader’s success in a global business operating in Africa. By applying qualitative research methodology which includes an individual narrative written by each Managing Director, semistructured interviews and focus groups, a framework for business leadership in Africa was developed.
- Full Text:
- Date Issued: 2014
- Authors: Whitley, Elwyn
- Date: 2014
- Subjects: Leadership -- Africa Success in business , Management -- Africa Business Industrial management -- Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/45814 , vital:39219
- Description: In a fast moving, rapidly changing and highly competitive world the importance of strong leadership in both government and business cannot be over emphasised. The realisation that leadership is necessary for the organisation’s success and is key for the organisation’s survival (Alimo-Metcalfe and Alban- Metcalfe, 2008) is evident in the increasing focus on the concept over the last three to four decades. As the world becomes more of a ‘global village’ adapting to doing business in this new environment will require a leader who not only has the traditional skills set but also has the additional knowledge, skills and “mindset to navigate through the complexities brought on by moving beyond one's traditional borders” (Cohen, 2010. p. 3). This is of particular importance to Africa with the influx of foreign investors attracted by the growth opportunities that Africa offers, looking to expand their markets and in doing so imposing western norms and standards on local operations, in complex environments. Unfortunately Western leadership theories have not always been successful as Africans have found that in order to embrace Western ideals they need to relinquish some of their own beliefs. This highlights an opportunity to explore a possible hybrid leadership approach that harmonises the Western approach that is based on facts, logic and the nature of reality with the African humanistic orientation. The main aim of this study is to research the concept, principles, and characteristics of a small sample of business leaders in Africa in order to identify the factors that contribute to the leader’s success in a global business operating in Africa. By applying qualitative research methodology which includes an individual narrative written by each Managing Director, semistructured interviews and focus groups, a framework for business leadership in Africa was developed.
- Full Text:
- Date Issued: 2014
An assessment of organisational change at S.P. Metal Forgings Uitenhage
- Authors: Whittal, Daryl James
- Date: 2014
- Subjects: Organizational change , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9388 , http://hdl.handle.net/10948/d1017559
- Description: The intention of this study was to investigate how organisational change was implemented at S.P. Metal Forgings Uitenhage, what the outcomes of the changes were and the effect on the organisational culture. In order to achieve this goal, the following actions were taken: · A literature study was conducted of various texts relating to organizational change and the associated topics with the intention to identify strategies and techniques to aid the successful implementation of organisational change. · An interview was held with the managing director of S.P. Metal Forgings to aid in understanding the need for organisational change at this particular facility and to have insight into how he implemented the changes. · A self administered questionnaire was distributed amongst a number of employees. The survey covered all levels of the organisation, from machine operators to departmental managers, to provide a comprehensive picture of how the employees viewed the changes and associated topics. The questionnaire requested responses from the respondents regarding their demographical details and their individual opinions regarding the organisational change, which covered the lead up to the changes and the manner in which the changes were made. The questionnaire also included sections covering change outcomes, which measured the success of the change efforts and lastly organisational culture on site at the time of the study. The results from the literature study showed that there are a number of accepted change models which can be adopted when implementing change. These models assist in driving the organisational change. The empirical study revealed that for the changes implemented at S.P. Metal Forgings Uitenhage, a change model was not adopted and that a number of vitally important areas associated with the change efforts were inadequately addressed. The organisational changes were introduced on this particular site with the intention of minimizing the loss situation and re-establishing the organisation as a profit generating entity. The empirical study showed a number of positive outcomes associated with the changes but also highlighted areas of concern and points which can be improved. The culture found within an organisation influences the organisation in many ways which include the ability of the organisation to accept change and the ease of implementing new procedures and equipment. The culture also influences the daily operations of a manufacturing facility such as this one. The study revealed that the respondents are not driven to perform at their best as a result of the lack of recognition which they receive and that the relationship between employees and management can improve. It was concluded that organisational change is not easy to introduce and that it needs to be well planned and executed. Change requires transformational leaders, a clear vision, an analysis and well-thought out and properly implemented actions.
- Full Text:
- Date Issued: 2014
- Authors: Whittal, Daryl James
- Date: 2014
- Subjects: Organizational change , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9388 , http://hdl.handle.net/10948/d1017559
- Description: The intention of this study was to investigate how organisational change was implemented at S.P. Metal Forgings Uitenhage, what the outcomes of the changes were and the effect on the organisational culture. In order to achieve this goal, the following actions were taken: · A literature study was conducted of various texts relating to organizational change and the associated topics with the intention to identify strategies and techniques to aid the successful implementation of organisational change. · An interview was held with the managing director of S.P. Metal Forgings to aid in understanding the need for organisational change at this particular facility and to have insight into how he implemented the changes. · A self administered questionnaire was distributed amongst a number of employees. The survey covered all levels of the organisation, from machine operators to departmental managers, to provide a comprehensive picture of how the employees viewed the changes and associated topics. The questionnaire requested responses from the respondents regarding their demographical details and their individual opinions regarding the organisational change, which covered the lead up to the changes and the manner in which the changes were made. The questionnaire also included sections covering change outcomes, which measured the success of the change efforts and lastly organisational culture on site at the time of the study. The results from the literature study showed that there are a number of accepted change models which can be adopted when implementing change. These models assist in driving the organisational change. The empirical study revealed that for the changes implemented at S.P. Metal Forgings Uitenhage, a change model was not adopted and that a number of vitally important areas associated with the change efforts were inadequately addressed. The organisational changes were introduced on this particular site with the intention of minimizing the loss situation and re-establishing the organisation as a profit generating entity. The empirical study showed a number of positive outcomes associated with the changes but also highlighted areas of concern and points which can be improved. The culture found within an organisation influences the organisation in many ways which include the ability of the organisation to accept change and the ease of implementing new procedures and equipment. The culture also influences the daily operations of a manufacturing facility such as this one. The study revealed that the respondents are not driven to perform at their best as a result of the lack of recognition which they receive and that the relationship between employees and management can improve. It was concluded that organisational change is not easy to introduce and that it needs to be well planned and executed. Change requires transformational leaders, a clear vision, an analysis and well-thought out and properly implemented actions.
- Full Text:
- Date Issued: 2014
Perceptions of private sector midwives and obstetricians regarding collaborative maternity
- Authors: Wibbelink, Margreet
- Date: 2014
- Subjects: Maternal health services , Maternal health care teams
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10067 , http://hdl.handle.net/10948/d1020979
- Description: The World Health Organization (WHO) states that no region in the world is justified in having a caesarean section rate greater than 10-15 percent, calculated as the number of caesarean deliveries over the total number of live births. There is however, an international increase in the rate of caesarean section deliveries and this is a concern to midwives. The increase is evident in South Africa as well. Currently the rate of caesarean section deliveries in the private sector can be as high as 70 percent per total number of live births per year. As a result, the public often perceives giving birth surgically in South Africa as ‘normal’ and ‘safer’ than vaginal delivery, even for low-risk pregnancies. The lack of involvement of midwives in the care of pregnant women in the private sector is indicated as one of the reasons related to the high caesarean section delivery rates. This motivated the researcher to undertake a study to explore and describe the perceptions of private sector midwives and obstetricians regarding the feasibility of collaboration in maternity care. A literature review to support the study identified research done previously regarding collaborative maternity care. The study followed a qualitative, exploratory, descriptive, contextual design. The research population included midwives and obstetricians in the private sector in the Eastern Cape. Non-probability, purposive sampling was used. The researcher conducted semi-structured one-to-one interviews to collect information rich data. The researcher ensured that the study was conducted in an ethical manner by adhering to ethical principles such as autonomy, non-maleficence, beneficence and justice. The interviews were transcribed and Creswell’s’ data analysis spiral was used as a guide for the data analysis. Themes and sub-themes were identified and grouped together to form new categories. An independent coder assisted with the coding process. Data analysis results revealed the following results Participants perceived a collaborative working relationship as being beneficial to maternity care. Participants identified that there might be critical impediments that need to be faced in order to realize collaborative maternity care. The researcher ensured the validity of the study by conforming to Lincoln and Guba’s model of trustworthiness, which consists of the following four criteria namely credibility, transferability, dependability and conformability. The information obtained from this study assisted in developing guidelines to facilitate the implementation of collaborative maternity care between midwives and obstetricians in private practice in South Africa. The objective of the study was thus met.
- Full Text:
- Date Issued: 2014
- Authors: Wibbelink, Margreet
- Date: 2014
- Subjects: Maternal health services , Maternal health care teams
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10067 , http://hdl.handle.net/10948/d1020979
- Description: The World Health Organization (WHO) states that no region in the world is justified in having a caesarean section rate greater than 10-15 percent, calculated as the number of caesarean deliveries over the total number of live births. There is however, an international increase in the rate of caesarean section deliveries and this is a concern to midwives. The increase is evident in South Africa as well. Currently the rate of caesarean section deliveries in the private sector can be as high as 70 percent per total number of live births per year. As a result, the public often perceives giving birth surgically in South Africa as ‘normal’ and ‘safer’ than vaginal delivery, even for low-risk pregnancies. The lack of involvement of midwives in the care of pregnant women in the private sector is indicated as one of the reasons related to the high caesarean section delivery rates. This motivated the researcher to undertake a study to explore and describe the perceptions of private sector midwives and obstetricians regarding the feasibility of collaboration in maternity care. A literature review to support the study identified research done previously regarding collaborative maternity care. The study followed a qualitative, exploratory, descriptive, contextual design. The research population included midwives and obstetricians in the private sector in the Eastern Cape. Non-probability, purposive sampling was used. The researcher conducted semi-structured one-to-one interviews to collect information rich data. The researcher ensured that the study was conducted in an ethical manner by adhering to ethical principles such as autonomy, non-maleficence, beneficence and justice. The interviews were transcribed and Creswell’s’ data analysis spiral was used as a guide for the data analysis. Themes and sub-themes were identified and grouped together to form new categories. An independent coder assisted with the coding process. Data analysis results revealed the following results Participants perceived a collaborative working relationship as being beneficial to maternity care. Participants identified that there might be critical impediments that need to be faced in order to realize collaborative maternity care. The researcher ensured the validity of the study by conforming to Lincoln and Guba’s model of trustworthiness, which consists of the following four criteria namely credibility, transferability, dependability and conformability. The information obtained from this study assisted in developing guidelines to facilitate the implementation of collaborative maternity care between midwives and obstetricians in private practice in South Africa. The objective of the study was thus met.
- Full Text:
- Date Issued: 2014
Towards the feasibility of a landowner enterprise in the western Baviaanskloof : an external stakeholder analysis
- Authors: Wiles, Kira Leigh Deborah
- Date: 2014
- Subjects: Landowners -- South Africa -- Eastern Cape , Natural resources -- Co-management -- South Africa -- Eastern Cape , Land use -- Environmental aspects -- South Africa -- Eastern Cape , Land use -- Economic aspects -- South Africa -- Eastern Cape , Partnership -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1198 , http://hdl.handle.net/10962/d1012075 , Landowners -- South Africa -- Eastern Cape , Natural resources -- Co-management -- South Africa -- Eastern Cape , Land use -- Environmental aspects -- South Africa -- Eastern Cape , Land use -- Economic aspects -- South Africa -- Eastern Cape , Partnership -- South Africa -- Eastern Cape
- Description: In May 2012, a meeting was held between various stakeholder representatives of the Western Baviaanskloof to discuss the concept of a proposed landowner-enterprise. This concept was put forward in response to a need for collaboration in the midst of economic, environmental and social issues at play in the Baviaanskloof. Owing to the conservation value and rapidly decreasing economic output of the land, a radical shift to sustainable land-use practices was called for by various stakeholders. Suggested as a vehicle to generate income for the local landowners through alternative sustainable land-uses, the proposed enterprise may aid in addressing this shift by use of a bottom-up approach. During the stakeholder meeting, it was requested by the representative landowners that a feasibility assessment be conducted on the concept of the proposed enterprise prior to establishment. As an integral part of this assessment, the researcher took on the task of investigating stakeholder reception to the enterprise by means of a stakeholder analysis. It was decided to limit this to three markets: water, carbon and tourism. The purpose of this research study is twofold, namely to: investigate stakeholder influence and their reception of the proposed enterprise using a stakeholder analysis; and also to identify and advise on the opportunities and constraints relating to stakeholders, thus contributing to determining the feasibility of the proposed enterprise. In achieving the purpose of this study, a systematic stakeholder analysis framework was constructed, based on existing theory. This was necessary because, although stakeholder analysis is commonly practiced, no study was found to provide a theoretically based framework for the purpose of feasibility in the initial stages of enterprise establishment. Thus the contribution of the study is also twofold, namely the practical outcome of determining stakeholder reception for feasibility, and a secondary outcome of constructing a stakeholder analysis framework. The stakeholder analysis framework is based on an interpretation of existing stakeholder theory, with the addition of four "relational indicators" – goals, intentions, relationships, and resources. These four indicators provide a link between theory and practice in gauging the two attributes of stakeholder influence – power and interest. Dealing with a number of stakeholder interests in a unique context, the study takes on a single network case study approach in the paradigm of phenomenology. To suit the complex nature of the study, semi-structured interviews with various stakeholder representatives were conducted, using groups or organisations as units of analysis. Drawing from the stakeholder analysis framework and overall purpose of the study, four research objectives were set. The first was to identify the proposed enterprise's legitimate key external stakeholders, based on the three markets: water, carbon and tourism; the second to describe, categorise and assess relative dyadic influence of the above stakeholders by gauging their power and interest; the third, to determine the stakeholder network influence and probable reception of the proposed enterprise; and the last to advise the landowners on any identified opportunities or constraints stakeholders might pose, and thus to contribute to determining feasibility. In addressing the first objective, 21 stakeholders were identified, 12 of whom were found to be key to the current investigation. These key stakeholders were: Gamtoos Irrigation Board (GIB), LivingLands, R3G, Rhodes Restoration Group, Eastern Cape Parks and Tourism Agency (ECPTA), Department of Water Affairs (DWA), Nelson Mandela Bay Metropolitan (NMBM), Saaimanshoek, South African National Biodiversity Institute (SANBI), Department of Economic Development, Environmental Affairs and Tourism (DEDEAT), Baviaans Tourism, and Baviaans Municipality. In applying the stakeholder analysis framework, ECPTA was categorised as the definitive (most influential) stakeholder to the enterprise, and DEDEAT, SANBI (through Working for Wetlands), Baviaans Tourism, GIB, and NMBM were categorised as pivotal (influential and active). In discerning stakeholder interest in the proposed enterprise, a number of emerging themes were found to affect the projected interest and behaviour of stakeholders, apart from their specified goals. Emerging themes included: tunnel visioning, internal disparity, individual/personality clashes, and misaligned interests. In addition to this, in interpreting stakeholder interest, specific intentions or agendas that might affect the interest shown towards the proposed enterprise were also taken into account. Five predominant intentions of stakeholders were identified as: implementing a stewardship programme, establishing a tourism association, establishing a water users' association, social development, and "the big vision". Findings on the final objective revealed a number of perceived opportunities and constraints relative to the feasibility of the enterprise. Three prime opportunities were identified as: partnerships with definitive and pivotal stakeholders, the possibility of tendering for implementer of the "Working for" programmes, and taking on the role of Tourism Association. The following potential constraints were also emphasised by participants: social aspects such as individuals and personalities, the incompatibility or non-existence of local market structures, and the need for external funding. With regard to stakeholder reception, most of the stakeholders, with the exception of NMBM and Saaimanshoek, responded positively to the idea of the enterprise. Overall, based on participant perceptions, the tourism market was found to be the most feasible the carbon market uncertain and a long-term possibility, and the water market the least feasible.
- Full Text:
- Date Issued: 2014
- Authors: Wiles, Kira Leigh Deborah
- Date: 2014
- Subjects: Landowners -- South Africa -- Eastern Cape , Natural resources -- Co-management -- South Africa -- Eastern Cape , Land use -- Environmental aspects -- South Africa -- Eastern Cape , Land use -- Economic aspects -- South Africa -- Eastern Cape , Partnership -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1198 , http://hdl.handle.net/10962/d1012075 , Landowners -- South Africa -- Eastern Cape , Natural resources -- Co-management -- South Africa -- Eastern Cape , Land use -- Environmental aspects -- South Africa -- Eastern Cape , Land use -- Economic aspects -- South Africa -- Eastern Cape , Partnership -- South Africa -- Eastern Cape
- Description: In May 2012, a meeting was held between various stakeholder representatives of the Western Baviaanskloof to discuss the concept of a proposed landowner-enterprise. This concept was put forward in response to a need for collaboration in the midst of economic, environmental and social issues at play in the Baviaanskloof. Owing to the conservation value and rapidly decreasing economic output of the land, a radical shift to sustainable land-use practices was called for by various stakeholders. Suggested as a vehicle to generate income for the local landowners through alternative sustainable land-uses, the proposed enterprise may aid in addressing this shift by use of a bottom-up approach. During the stakeholder meeting, it was requested by the representative landowners that a feasibility assessment be conducted on the concept of the proposed enterprise prior to establishment. As an integral part of this assessment, the researcher took on the task of investigating stakeholder reception to the enterprise by means of a stakeholder analysis. It was decided to limit this to three markets: water, carbon and tourism. The purpose of this research study is twofold, namely to: investigate stakeholder influence and their reception of the proposed enterprise using a stakeholder analysis; and also to identify and advise on the opportunities and constraints relating to stakeholders, thus contributing to determining the feasibility of the proposed enterprise. In achieving the purpose of this study, a systematic stakeholder analysis framework was constructed, based on existing theory. This was necessary because, although stakeholder analysis is commonly practiced, no study was found to provide a theoretically based framework for the purpose of feasibility in the initial stages of enterprise establishment. Thus the contribution of the study is also twofold, namely the practical outcome of determining stakeholder reception for feasibility, and a secondary outcome of constructing a stakeholder analysis framework. The stakeholder analysis framework is based on an interpretation of existing stakeholder theory, with the addition of four "relational indicators" – goals, intentions, relationships, and resources. These four indicators provide a link between theory and practice in gauging the two attributes of stakeholder influence – power and interest. Dealing with a number of stakeholder interests in a unique context, the study takes on a single network case study approach in the paradigm of phenomenology. To suit the complex nature of the study, semi-structured interviews with various stakeholder representatives were conducted, using groups or organisations as units of analysis. Drawing from the stakeholder analysis framework and overall purpose of the study, four research objectives were set. The first was to identify the proposed enterprise's legitimate key external stakeholders, based on the three markets: water, carbon and tourism; the second to describe, categorise and assess relative dyadic influence of the above stakeholders by gauging their power and interest; the third, to determine the stakeholder network influence and probable reception of the proposed enterprise; and the last to advise the landowners on any identified opportunities or constraints stakeholders might pose, and thus to contribute to determining feasibility. In addressing the first objective, 21 stakeholders were identified, 12 of whom were found to be key to the current investigation. These key stakeholders were: Gamtoos Irrigation Board (GIB), LivingLands, R3G, Rhodes Restoration Group, Eastern Cape Parks and Tourism Agency (ECPTA), Department of Water Affairs (DWA), Nelson Mandela Bay Metropolitan (NMBM), Saaimanshoek, South African National Biodiversity Institute (SANBI), Department of Economic Development, Environmental Affairs and Tourism (DEDEAT), Baviaans Tourism, and Baviaans Municipality. In applying the stakeholder analysis framework, ECPTA was categorised as the definitive (most influential) stakeholder to the enterprise, and DEDEAT, SANBI (through Working for Wetlands), Baviaans Tourism, GIB, and NMBM were categorised as pivotal (influential and active). In discerning stakeholder interest in the proposed enterprise, a number of emerging themes were found to affect the projected interest and behaviour of stakeholders, apart from their specified goals. Emerging themes included: tunnel visioning, internal disparity, individual/personality clashes, and misaligned interests. In addition to this, in interpreting stakeholder interest, specific intentions or agendas that might affect the interest shown towards the proposed enterprise were also taken into account. Five predominant intentions of stakeholders were identified as: implementing a stewardship programme, establishing a tourism association, establishing a water users' association, social development, and "the big vision". Findings on the final objective revealed a number of perceived opportunities and constraints relative to the feasibility of the enterprise. Three prime opportunities were identified as: partnerships with definitive and pivotal stakeholders, the possibility of tendering for implementer of the "Working for" programmes, and taking on the role of Tourism Association. The following potential constraints were also emphasised by participants: social aspects such as individuals and personalities, the incompatibility or non-existence of local market structures, and the need for external funding. With regard to stakeholder reception, most of the stakeholders, with the exception of NMBM and Saaimanshoek, responded positively to the idea of the enterprise. Overall, based on participant perceptions, the tourism market was found to be the most feasible the carbon market uncertain and a long-term possibility, and the water market the least feasible.
- Full Text:
- Date Issued: 2014
Ontogenetic and seasonal shifts in the diet of Diplodus cervinus hottentotus (Pisces: Sparidae) in southern Angola
- Winkler, Alexander C, Santos, Carmen V D, Potts, Warren M
- Authors: Winkler, Alexander C , Santos, Carmen V D , Potts, Warren M
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125452 , vital:35784 , https://doi.10.2989/1814232X.2014.951392
- Description: Fishes of the family Sparidae occupy a diverse range of trophic niches, from herbivores to generalist omnivores and specialist predators (Hanel and Tsigenopoulos 2011). Feeding specialisation in this family is facilitated by diversity in tooth type and anterior jaw arrangement (Vandewalle et al. 1995). Other fish families, such as Cyprinidae and Labridae, have developed crushing pharyngeal teeth to process their food. Sparids, however, have retained a simple pharyngeal tooth arrangement and instead have developed molariform teeth to process hard-shelled molluscs and invertebrate prey. Hanel and Tsigenopoulos (2011) suggested that this alternate strategy is a major factor facilitating the trophic diversity in sparid fishes.
- Full Text:
- Date Issued: 2014
- Authors: Winkler, Alexander C , Santos, Carmen V D , Potts, Warren M
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125452 , vital:35784 , https://doi.10.2989/1814232X.2014.951392
- Description: Fishes of the family Sparidae occupy a diverse range of trophic niches, from herbivores to generalist omnivores and specialist predators (Hanel and Tsigenopoulos 2011). Feeding specialisation in this family is facilitated by diversity in tooth type and anterior jaw arrangement (Vandewalle et al. 1995). Other fish families, such as Cyprinidae and Labridae, have developed crushing pharyngeal teeth to process their food. Sparids, however, have retained a simple pharyngeal tooth arrangement and instead have developed molariform teeth to process hard-shelled molluscs and invertebrate prey. Hanel and Tsigenopoulos (2011) suggested that this alternate strategy is a major factor facilitating the trophic diversity in sparid fishes.
- Full Text:
- Date Issued: 2014
Diagnosing the sexual pattern of Diplodus cervinus hottentotus (Pisces: Sparidae) from southern Angola
- Winkler, Alexander C, Santos, Carmen V D, Potts, Warren M
- Authors: Winkler, Alexander C , Santos, Carmen V D , Potts, Warren M
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124286 , vital:35589 , https://doi.10.1007/s11160-006-9034-6
- Description: The sexual pattern of Diplodus cervinus hottentotus was investigated in southern Angola. Females were significantly smaller and found in greater numbers, with an adult sex ratio of 1.0:0.7, F:M. Histological observations of preserved gonads indicated that the species is a rudimentary hermaphrodite, possessing a non-functional bisexual ovotestis before maturation. Histological examination of five macroscopically staged ‘bisexual’ individuals revealed that they were functional males with residual ovarian tissue in the gonad, which had persisted from a juvenile bisexual stage. Although empirical population structure and macroscopic observations suggested protogyny, histological evidence suggested otherwise, confirming the need for the use of histology when diagnosing the sexual pattern of sparid fishes.
- Full Text:
- Date Issued: 2014
- Authors: Winkler, Alexander C , Santos, Carmen V D , Potts, Warren M
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124286 , vital:35589 , https://doi.10.1007/s11160-006-9034-6
- Description: The sexual pattern of Diplodus cervinus hottentotus was investigated in southern Angola. Females were significantly smaller and found in greater numbers, with an adult sex ratio of 1.0:0.7, F:M. Histological observations of preserved gonads indicated that the species is a rudimentary hermaphrodite, possessing a non-functional bisexual ovotestis before maturation. Histological examination of five macroscopically staged ‘bisexual’ individuals revealed that they were functional males with residual ovarian tissue in the gonad, which had persisted from a juvenile bisexual stage. Although empirical population structure and macroscopic observations suggested protogyny, histological evidence suggested otherwise, confirming the need for the use of histology when diagnosing the sexual pattern of sparid fishes.
- Full Text:
- Date Issued: 2014
Taxonomy and life history of the zebra seabream, Diplodus cervinus (Perciformes: Sparidae), in southern Angola
- Authors: Winkler, Alexander Claus
- Date: 2014
- Subjects: Diplodus -- Classification Fish populations -- Angola Diplodus -- Angola Diplodus -- South Africa Diplodus -- Morphology Fisheries -- Angola Sparidae
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5361 , http://hdl.handle.net/10962/d1012062
- Description: The zebra sea bream, Diplodus cervinus (Sparidae) is an inshore fish comprised of two boreal subspecies from the Gulf of Oman and the Mediterranean / north eastern Atlantic and one austral subspecies from South Africa and southern Angola. The assumption of a single austral subspecies has, however, been questioned due to mounting molecular and morphological evidence suggesting that the cool Benguela current is a vicariant barrier that has separated many synonymous inshore fish species between South Africa and southern Angola. The aims of this thesis are to conduct a comparative morphological analysis of Diplodus cervinus in southern Angola and South Africa in order to classify the southern Angolan population and then to conduct a life history assessment to assess the life history impact of allopatry on this species between the two regions. Results of the morphological findings of the present study (ANOSIM, p < 0.05, Rmeristic = 0.42) and (Rmorphometric = 0.30) along with a concurrent molecular study (FST = 0.4 – 0.6), identified significant divergence between specimens from South Africa (n = 25) and southern Angola (n = 37) and supported stock separation and possibly sub-speciation, depending on the classification criteria utilised. While samples from the two boreal subspecies were not available for the comparative morphological or molecular analysis, comparisons of the colouration patterns between the three subspecies, suggested similarity between the southern Angola and the northern Atlantic / Mediterranean populations. In contrast, the colouration patterns between the southern Angolan and South African specimens differed substantially, further supporting the morphological and molecular results. The distinct morphological divergence between the southern Angolan and South African populations was not reflected within the life history traits of both populations. A combination of methods, including length/age frequency analyses, adult sex ratios and histological analysis was used to determine that this species is a rudimentary hermaphrodite in southern Angola. Peak spawning season was observed between June and July. The overall sex ratio (M: F) was 1:1.52 with females dominating smaller younger size classes and 50% maturity was attained at 210 mm FL and 4.6 years. Females [L(t) = 287.5(1-e⁻°·¹⁸⁽t⁻²·⁸⁴⁾)] grew significantly faster (LRT, p < 0.05) than males [L(t) = 380.19(1-e⁻°·°⁶⁽t⁻⁷·¹²⁾)]. The higher maximum age of the southern Angolan population of D. cervinus (43 years) was older than that of South African individuals sampled in the tsitsikamma national park. The similarities in the life history of the two austral populations are probably a consequence of similar selective pressures in the similar warmtemperate habitats. Evidence to support the above comments was found in the feeding study which showed that the South African and Angolan populations were almost identical, with both populations feeding primarily on amphipods and polychaete worms throughout ontogeny. In contrast, the diet of their boreal conspecifics from the Mediterranean was different, where larger individuals tended to select larger, and more robust, prey items. The life history differences observed between the boreal and austral populations can be attributed to either sampling bias or environmental factors. Sampling biases included the use of different age and growth estimation techniques, while the environmental factors would include differential selective pressures most likely driven by different resource availability and exploitation. The present study provides crucial baseline life history information of a potentially exploitable species off southern Angola as well as information on the life history plasticity of the species. Unfortunately, the current lack of uniformity in the methods used to estimate life history parameters between studies conducted on the boreal and austral populations have complicated our understanding of the evolution of various life history trends in sparid fish. From a management perspective however, the results from the present study can be used to propose management strategies for an emerging trap fishery in southern Angola. Using a balanced exploitation fishery approach (harvesting up to the size-at-100% maturity), the size of the fish traps entrance was calculated based the morphological information from this and other small sparid species that are targeted and was estimated to be 62 mm.
- Full Text:
- Date Issued: 2014
- Authors: Winkler, Alexander Claus
- Date: 2014
- Subjects: Diplodus -- Classification Fish populations -- Angola Diplodus -- Angola Diplodus -- South Africa Diplodus -- Morphology Fisheries -- Angola Sparidae
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5361 , http://hdl.handle.net/10962/d1012062
- Description: The zebra sea bream, Diplodus cervinus (Sparidae) is an inshore fish comprised of two boreal subspecies from the Gulf of Oman and the Mediterranean / north eastern Atlantic and one austral subspecies from South Africa and southern Angola. The assumption of a single austral subspecies has, however, been questioned due to mounting molecular and morphological evidence suggesting that the cool Benguela current is a vicariant barrier that has separated many synonymous inshore fish species between South Africa and southern Angola. The aims of this thesis are to conduct a comparative morphological analysis of Diplodus cervinus in southern Angola and South Africa in order to classify the southern Angolan population and then to conduct a life history assessment to assess the life history impact of allopatry on this species between the two regions. Results of the morphological findings of the present study (ANOSIM, p < 0.05, Rmeristic = 0.42) and (Rmorphometric = 0.30) along with a concurrent molecular study (FST = 0.4 – 0.6), identified significant divergence between specimens from South Africa (n = 25) and southern Angola (n = 37) and supported stock separation and possibly sub-speciation, depending on the classification criteria utilised. While samples from the two boreal subspecies were not available for the comparative morphological or molecular analysis, comparisons of the colouration patterns between the three subspecies, suggested similarity between the southern Angola and the northern Atlantic / Mediterranean populations. In contrast, the colouration patterns between the southern Angolan and South African specimens differed substantially, further supporting the morphological and molecular results. The distinct morphological divergence between the southern Angolan and South African populations was not reflected within the life history traits of both populations. A combination of methods, including length/age frequency analyses, adult sex ratios and histological analysis was used to determine that this species is a rudimentary hermaphrodite in southern Angola. Peak spawning season was observed between June and July. The overall sex ratio (M: F) was 1:1.52 with females dominating smaller younger size classes and 50% maturity was attained at 210 mm FL and 4.6 years. Females [L(t) = 287.5(1-e⁻°·¹⁸⁽t⁻²·⁸⁴⁾)] grew significantly faster (LRT, p < 0.05) than males [L(t) = 380.19(1-e⁻°·°⁶⁽t⁻⁷·¹²⁾)]. The higher maximum age of the southern Angolan population of D. cervinus (43 years) was older than that of South African individuals sampled in the tsitsikamma national park. The similarities in the life history of the two austral populations are probably a consequence of similar selective pressures in the similar warmtemperate habitats. Evidence to support the above comments was found in the feeding study which showed that the South African and Angolan populations were almost identical, with both populations feeding primarily on amphipods and polychaete worms throughout ontogeny. In contrast, the diet of their boreal conspecifics from the Mediterranean was different, where larger individuals tended to select larger, and more robust, prey items. The life history differences observed between the boreal and austral populations can be attributed to either sampling bias or environmental factors. Sampling biases included the use of different age and growth estimation techniques, while the environmental factors would include differential selective pressures most likely driven by different resource availability and exploitation. The present study provides crucial baseline life history information of a potentially exploitable species off southern Angola as well as information on the life history plasticity of the species. Unfortunately, the current lack of uniformity in the methods used to estimate life history parameters between studies conducted on the boreal and austral populations have complicated our understanding of the evolution of various life history trends in sparid fish. From a management perspective however, the results from the present study can be used to propose management strategies for an emerging trap fishery in southern Angola. Using a balanced exploitation fishery approach (harvesting up to the size-at-100% maturity), the size of the fish traps entrance was calculated based the morphological information from this and other small sparid species that are targeted and was estimated to be 62 mm.
- Full Text:
- Date Issued: 2014
Business, state and society in the Western Cape from 1960 to 1990
- Authors: Wood, Robert Jameson
- Date: 2014
- Subjects: Industrial policy -- South Africa. , Apartheid -- South Africa -- 1960-1990 , South Africa -- Economic conditions -- 1960-1990 , South Africa -- Economic policy
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9125 , http://hdl.handle.net/10948/d1018502
- Description: This research examines the relationship between business, the state and society in South Africa -- particularly the Western Cape -- over the period from 1960 to 1990, viewed against the background of economic conditions in this region, South Africa and the world. Utilising a development history approach, it is based on an extensive study of primary and secondary documentation, supplemented by a panel of in-depth interviews and observation. This study finds that the relationship between business and apartheid incorporated both functional and dysfunctional elements, although over time the benefits diminished and the costs multiplied. The latter, Regulation Theory suggests, is true for any institutional order, but it could be argued that, under apartheid, the particularly fragile and contradictory nature of the institutional arrangement made inevitable crises more rapid and more pronounced. On the one hand, apartheid restricted the economic development of the country, as a result of a range of factors from skills shortages to the visible waste of resources on grand ideological projects and security; as suggested by Resource Curse Theory, minerals windfalls tend to encourage irresponsible behaviour by governments. On the other hand, certain businesses prospered, notably the Afrikaner business sector. All business benefited from the overall growth of the 1950s and 1960s, whilst niche players often did quite well even during the 1980s. Further, the South African businessmen, both English- and Afrikaans-speaking, were skilful in adapting to the difficult conditions brought about by apartheid, and in many cases they prospered. As highlighted by Business Systems Theory, embedded social ties and informal relations may help either support or compensate for formal regulatory pressures. Many of these general trends were particularly accentuated in the Western Cape. The fact that business protests against government policies were often more motivated by concerns as to future property rights and of social disorder, rather than human rights, does indeed raise serious moral issues. However, in helping encourage political reform, they may have made a positive contribution. This study is founded on three related strands of thinking within the political economy tradition, Resource Curse Theory, Regulation Theory and Business Systems Theory, with the emerging common ground between these three bodies of thought being highlighted. As suggested by Resource Curse Theory, non-mineral producing regions tend to be particularly adversely affected in mineral rich countries, and there is little doubt that the region bore all the costs of the collapse of the gold price in the 1980s, and lacked the deeper capital base of the now Gauteng region to cushion the shock. Whilst apartheid may, as we have seen, have served conservative sectors of agriculture and mining quite well for many years, it also involved large costs incurred through social engineering experiments and the increasing demands of the security establishment. Resource Curse Theory suggests that national economies become dangerously dependent on the vagaries of commodities markets, and that the process of institutional design and evolution is hampered by assumptions of easy money which may temporary resolve the negative consequences of any institutional shortcomings. The poor price of gold in much of the 1980s brought about a crisis in the system, and, there is little doubt that this contributed to the demise of the order. As suggested by Resource Curse Theory, the experience of the Western Cape, a region of the country poor in minerals, was often one of inefficient and wasteful state intervention, coupled with increasingly poor performance of non-mineral related industries. Indeed, the effects of the recession of the 1980s were most pronounced in non-mineral producing areas of the country, particularly in the Western Cape. Regulation Theory highlights that no set of institutions and practices is ever totally coherent and functional, but at specific times may work to promote both certain types of economic activity and overall growth. It is wrong to suggest that because an order only works for some players at specific times it is simply dysfunctional or does not work properly at all. However, over time, internal contradictions mount and the benefits diminish. A particular feature of the apartheid order was that some of its core benefits at its height were particularly concentrated on some players (segments of Afrikaner commerce and industry, mining and agriculture), whilst the costs were shared across a wider range of players, with a disproportionate burden being borne by the black majority. A further feature was that the costs were often indirect and spread over many years if the benefits were sometimes immediate: this would include the persistent dysfunctionality of much of the South African education system and the criminal ecosystem that was nurtured through sanctions busting. Internal contradictions and spreading dysfunctionality rarely leads to a conscious and coherent period of institutional redesign, but rather an incoherent, experimental and contested process, such as characterized late apartheid reforms, and, indeed, the post February-1990 negotiation process. Finally, again at a theoretical level, as Business Systems Theory highlights, it is important to take account of the formal and informal ties interlinking firms in different sectors in the region, and firms and government, and the extent to which regions within a particular country may follow very distinct developmental trajectories. The benefits and the costs of the system diffused unevenly in the region, giving many players both a stake in the existing order, and an interest in some or other type of reform.
- Full Text:
- Date Issued: 2014
- Authors: Wood, Robert Jameson
- Date: 2014
- Subjects: Industrial policy -- South Africa. , Apartheid -- South Africa -- 1960-1990 , South Africa -- Economic conditions -- 1960-1990 , South Africa -- Economic policy
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9125 , http://hdl.handle.net/10948/d1018502
- Description: This research examines the relationship between business, the state and society in South Africa -- particularly the Western Cape -- over the period from 1960 to 1990, viewed against the background of economic conditions in this region, South Africa and the world. Utilising a development history approach, it is based on an extensive study of primary and secondary documentation, supplemented by a panel of in-depth interviews and observation. This study finds that the relationship between business and apartheid incorporated both functional and dysfunctional elements, although over time the benefits diminished and the costs multiplied. The latter, Regulation Theory suggests, is true for any institutional order, but it could be argued that, under apartheid, the particularly fragile and contradictory nature of the institutional arrangement made inevitable crises more rapid and more pronounced. On the one hand, apartheid restricted the economic development of the country, as a result of a range of factors from skills shortages to the visible waste of resources on grand ideological projects and security; as suggested by Resource Curse Theory, minerals windfalls tend to encourage irresponsible behaviour by governments. On the other hand, certain businesses prospered, notably the Afrikaner business sector. All business benefited from the overall growth of the 1950s and 1960s, whilst niche players often did quite well even during the 1980s. Further, the South African businessmen, both English- and Afrikaans-speaking, were skilful in adapting to the difficult conditions brought about by apartheid, and in many cases they prospered. As highlighted by Business Systems Theory, embedded social ties and informal relations may help either support or compensate for formal regulatory pressures. Many of these general trends were particularly accentuated in the Western Cape. The fact that business protests against government policies were often more motivated by concerns as to future property rights and of social disorder, rather than human rights, does indeed raise serious moral issues. However, in helping encourage political reform, they may have made a positive contribution. This study is founded on three related strands of thinking within the political economy tradition, Resource Curse Theory, Regulation Theory and Business Systems Theory, with the emerging common ground between these three bodies of thought being highlighted. As suggested by Resource Curse Theory, non-mineral producing regions tend to be particularly adversely affected in mineral rich countries, and there is little doubt that the region bore all the costs of the collapse of the gold price in the 1980s, and lacked the deeper capital base of the now Gauteng region to cushion the shock. Whilst apartheid may, as we have seen, have served conservative sectors of agriculture and mining quite well for many years, it also involved large costs incurred through social engineering experiments and the increasing demands of the security establishment. Resource Curse Theory suggests that national economies become dangerously dependent on the vagaries of commodities markets, and that the process of institutional design and evolution is hampered by assumptions of easy money which may temporary resolve the negative consequences of any institutional shortcomings. The poor price of gold in much of the 1980s brought about a crisis in the system, and, there is little doubt that this contributed to the demise of the order. As suggested by Resource Curse Theory, the experience of the Western Cape, a region of the country poor in minerals, was often one of inefficient and wasteful state intervention, coupled with increasingly poor performance of non-mineral related industries. Indeed, the effects of the recession of the 1980s were most pronounced in non-mineral producing areas of the country, particularly in the Western Cape. Regulation Theory highlights that no set of institutions and practices is ever totally coherent and functional, but at specific times may work to promote both certain types of economic activity and overall growth. It is wrong to suggest that because an order only works for some players at specific times it is simply dysfunctional or does not work properly at all. However, over time, internal contradictions mount and the benefits diminish. A particular feature of the apartheid order was that some of its core benefits at its height were particularly concentrated on some players (segments of Afrikaner commerce and industry, mining and agriculture), whilst the costs were shared across a wider range of players, with a disproportionate burden being borne by the black majority. A further feature was that the costs were often indirect and spread over many years if the benefits were sometimes immediate: this would include the persistent dysfunctionality of much of the South African education system and the criminal ecosystem that was nurtured through sanctions busting. Internal contradictions and spreading dysfunctionality rarely leads to a conscious and coherent period of institutional redesign, but rather an incoherent, experimental and contested process, such as characterized late apartheid reforms, and, indeed, the post February-1990 negotiation process. Finally, again at a theoretical level, as Business Systems Theory highlights, it is important to take account of the formal and informal ties interlinking firms in different sectors in the region, and firms and government, and the extent to which regions within a particular country may follow very distinct developmental trajectories. The benefits and the costs of the system diffused unevenly in the region, giving many players both a stake in the existing order, and an interest in some or other type of reform.
- Full Text:
- Date Issued: 2014
The design of a church complex in Port Elizabeth: a sacred place for community
- Authors: Wright, Matthew Stewart
- Date: 2014
- Subjects: Church buildings -- South Africa -- Port Elizabeth -- Designs and plans , Church buildings -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39054 , vital:35027
- Description: This treatise is concerned with the design of a church complex in Port Elizabeth. Its departure point stems from the author’s interest in contemporary church architecture and the concerns for its typology in the context of Port Elizabeth. The research begins with an investigation into the nature of church architecture, where the underlying principles relating to its diagram and expression are identified. These principles are then explored with the aim of understanding their nature and deriving some initial conclusions for the design. Following this, the principles are used to discuss and scrutinize identified precedents, which lead to further design conclusions. During this investigation, some preliminary spaces are pinpointed from these precedents. These are used, in conjunction with additional spaces found in a further study, to develop the programme for the building. Here, the components, the users, the spaces and the final accommodation schedule for the design are discussed. Following the research, the physical context for which the design is positioned is examined. Here, the criteria for the site are set up from the research findings, which lead to the selection of the site, and both the precinct and the actual site are analysed. From this, the various resultant constraints and informants are used to provide an urban framework, within which the design is to be positioned. To conclude, the final design can be described as a multifunctional church complex that expresses itself humbly within a natural forested setting in the heart of the community of Walmer.
- Full Text:
- Date Issued: 2014
- Authors: Wright, Matthew Stewart
- Date: 2014
- Subjects: Church buildings -- South Africa -- Port Elizabeth -- Designs and plans , Church buildings -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39054 , vital:35027
- Description: This treatise is concerned with the design of a church complex in Port Elizabeth. Its departure point stems from the author’s interest in contemporary church architecture and the concerns for its typology in the context of Port Elizabeth. The research begins with an investigation into the nature of church architecture, where the underlying principles relating to its diagram and expression are identified. These principles are then explored with the aim of understanding their nature and deriving some initial conclusions for the design. Following this, the principles are used to discuss and scrutinize identified precedents, which lead to further design conclusions. During this investigation, some preliminary spaces are pinpointed from these precedents. These are used, in conjunction with additional spaces found in a further study, to develop the programme for the building. Here, the components, the users, the spaces and the final accommodation schedule for the design are discussed. Following the research, the physical context for which the design is positioned is examined. Here, the criteria for the site are set up from the research findings, which lead to the selection of the site, and both the precinct and the actual site are analysed. From this, the various resultant constraints and informants are used to provide an urban framework, within which the design is to be positioned. To conclude, the final design can be described as a multifunctional church complex that expresses itself humbly within a natural forested setting in the heart of the community of Walmer.
- Full Text:
- Date Issued: 2014
The interface of history and fiction in Russel Brownlee’s Garden of the plagues, Ingrid Winterbach’s To hell With Cronjé, and Etienne van Heerden’s The long silence of Mario Salviati
- Authors: Wyrill, Beth Alexandra
- Date: 2014
- Subjects: Brownlee, Russel -- Criticism and interpretation , Winterbach, Ingrid -- Criticism and interpretation , Van Heerden, Etienne, 1954- -- Criticism and interpretation , South African fiction (English) -- History and criticism , South African fiction (English) -- 20th century -- History and criticism , African fiction (English) -- 21st century -- History and criticism , Brownlee, Russel -- Garden of the plagues , Winterbach, Ingrid -- Niggie -- English , Van Heerden, Etienne, 1954- -- Swye van Mario Salviati -- English , Historical fiction -- History and criticism , Magic realism (Literature)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2323 , http://hdl.handle.net/10962/d1015517
- Description: Both historiographical and literary practices have undergone revision in recent years in attempting to address the inheritance of nineteenth-century realism. Since the object of realist stylistics, employed in both the writing of fiction and history, is to render authorship authoritative or even invisible, the ideological import of these narratives is often such that the constructedness of the historical record and its absences are veiled. In developments beginning in the 1980s with the advent of ‘New Historicism’ and with the emergence of postmodern literary techniques, the interface of literature and history became of seminal importance, since both were now credited as being products of narrative and discourse, and hence, to varying degrees, of the literary imagination. This movement intersects interestingly with developments in postcolonial studies, since it is the voices of the marginalized and disempowered colonized peoples that are routinely co-opted and excised from nineteenth-century realist histories. These concerns are now being fully explored in the literature of the contemporary post-transitional South African moment, since authors in this country seemingly now feel freed up to look back to histories that precede the immediate traumas of apartheid. The concern, in relation to apartheid developments but also on a broader universal scale, is this: if history is viewed as perpetual emergences of modernities, then one of the great absences in the record is the historical determinants of any given epistemology. The attempt to recreate such an epistemological genealogy is thus simultaneously postcolonial, historiographical, and literary. Russel Brownlee’s Garden of the Plagues (2005), Ingrid Winterbach’s To Hell with Cronjé (2010), and Etienne van Heerden’s The Long Silence of Mario Salviati (2002) attempt to bridge this gap in the recorded sensibilities of any historical moment by representing a ‘lived experience’ of the past, and in the process imaginatively recreating the cultural, historical and psychological locations of the proponents of an emerging modernity. This study concerns itself with the ways in which these authors address the influence of realist historiography through the use of literary innovations that allow for the departure from realist stylistics. Most commonly, all three authors draw on forms of magic realism, but multiple refigurings and recombinations of notions of temporality, narrative, and characterization likewise work to defamiliarize the once stable discourse of history.
- Full Text:
- Date Issued: 2014
- Authors: Wyrill, Beth Alexandra
- Date: 2014
- Subjects: Brownlee, Russel -- Criticism and interpretation , Winterbach, Ingrid -- Criticism and interpretation , Van Heerden, Etienne, 1954- -- Criticism and interpretation , South African fiction (English) -- History and criticism , South African fiction (English) -- 20th century -- History and criticism , African fiction (English) -- 21st century -- History and criticism , Brownlee, Russel -- Garden of the plagues , Winterbach, Ingrid -- Niggie -- English , Van Heerden, Etienne, 1954- -- Swye van Mario Salviati -- English , Historical fiction -- History and criticism , Magic realism (Literature)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2323 , http://hdl.handle.net/10962/d1015517
- Description: Both historiographical and literary practices have undergone revision in recent years in attempting to address the inheritance of nineteenth-century realism. Since the object of realist stylistics, employed in both the writing of fiction and history, is to render authorship authoritative or even invisible, the ideological import of these narratives is often such that the constructedness of the historical record and its absences are veiled. In developments beginning in the 1980s with the advent of ‘New Historicism’ and with the emergence of postmodern literary techniques, the interface of literature and history became of seminal importance, since both were now credited as being products of narrative and discourse, and hence, to varying degrees, of the literary imagination. This movement intersects interestingly with developments in postcolonial studies, since it is the voices of the marginalized and disempowered colonized peoples that are routinely co-opted and excised from nineteenth-century realist histories. These concerns are now being fully explored in the literature of the contemporary post-transitional South African moment, since authors in this country seemingly now feel freed up to look back to histories that precede the immediate traumas of apartheid. The concern, in relation to apartheid developments but also on a broader universal scale, is this: if history is viewed as perpetual emergences of modernities, then one of the great absences in the record is the historical determinants of any given epistemology. The attempt to recreate such an epistemological genealogy is thus simultaneously postcolonial, historiographical, and literary. Russel Brownlee’s Garden of the Plagues (2005), Ingrid Winterbach’s To Hell with Cronjé (2010), and Etienne van Heerden’s The Long Silence of Mario Salviati (2002) attempt to bridge this gap in the recorded sensibilities of any historical moment by representing a ‘lived experience’ of the past, and in the process imaginatively recreating the cultural, historical and psychological locations of the proponents of an emerging modernity. This study concerns itself with the ways in which these authors address the influence of realist historiography through the use of literary innovations that allow for the departure from realist stylistics. Most commonly, all three authors draw on forms of magic realism, but multiple refigurings and recombinations of notions of temporality, narrative, and characterization likewise work to defamiliarize the once stable discourse of history.
- Full Text:
- Date Issued: 2014
Investigating young children’s knowledge and attitudes about HIV/AIDS pandemic in Libode District of Eastern Cape
- Authors: Xhala, Xolelwa
- Date: 2014
- Subjects: HIV/AIDS(Disease) -- Social aspect Learners -- AIDS-- South Africa -- Eastern Cape Children -- AIDS -- Knowledge and attitudes
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: http://hdl.handle.net/11260/1290 , vital:30795
- Description: This case study, which was conducted in the Libode District of the Eastern Cape Province, investigated forty (41)) Grade 3 children’s awareness of and the extent of knowledge about HIV/AIDS disease. The study targeted primary school children aged between 5 and 12 years. This investigation assessed the knowledge levels, attitudes and risky perceptions associated with HIV/AIDS among primary school children in order to achieve one major purpose: to help learners acquire adequate basic knowledge that could help them make informed decisions about how to protect their own health and to promote safe behaviours concerning HIV/AIDS. The study was located within children’s concepts of illness theory and children’s rights theory. The findings of my study suggested the HIV/AIDS awareness and prevention interventions that have been implemented since the outbreak of the epidemic have not their stated objectives aimed at reducing infections and children’s feeling of stigma towards their HIV/AIDS infected peers in schools. More worrying is the fact that the results suggested that primary school children lacked the appropriate knowledge about HIV/AIDS. The outcome of this lack of knowledge is that many primary school children have adopted risky behaviours towards the disease. The study recommended that all stakeholders must shift prevention interventions from media-based programmes focussed on adolescents to school-based programmes focused on primary school learners. The literature reviewed and my findings suggested school-based prevention awareness campaigns and inclusion of HIV/AIDS knowledge into school curriculum for all learners might produce better results.
- Full Text:
- Date Issued: 2014
- Authors: Xhala, Xolelwa
- Date: 2014
- Subjects: HIV/AIDS(Disease) -- Social aspect Learners -- AIDS-- South Africa -- Eastern Cape Children -- AIDS -- Knowledge and attitudes
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: http://hdl.handle.net/11260/1290 , vital:30795
- Description: This case study, which was conducted in the Libode District of the Eastern Cape Province, investigated forty (41)) Grade 3 children’s awareness of and the extent of knowledge about HIV/AIDS disease. The study targeted primary school children aged between 5 and 12 years. This investigation assessed the knowledge levels, attitudes and risky perceptions associated with HIV/AIDS among primary school children in order to achieve one major purpose: to help learners acquire adequate basic knowledge that could help them make informed decisions about how to protect their own health and to promote safe behaviours concerning HIV/AIDS. The study was located within children’s concepts of illness theory and children’s rights theory. The findings of my study suggested the HIV/AIDS awareness and prevention interventions that have been implemented since the outbreak of the epidemic have not their stated objectives aimed at reducing infections and children’s feeling of stigma towards their HIV/AIDS infected peers in schools. More worrying is the fact that the results suggested that primary school children lacked the appropriate knowledge about HIV/AIDS. The outcome of this lack of knowledge is that many primary school children have adopted risky behaviours towards the disease. The study recommended that all stakeholders must shift prevention interventions from media-based programmes focussed on adolescents to school-based programmes focused on primary school learners. The literature reviewed and my findings suggested school-based prevention awareness campaigns and inclusion of HIV/AIDS knowledge into school curriculum for all learners might produce better results.
- Full Text:
- Date Issued: 2014
Exploring Teacher Assessment Practices in The General Education and Training Level in Junior Secondary Schools in Mthatha Education District
- Authors: Xolile, Stwebile
- Date: 2014
- Language: English
- Type: Masters theses , text
- Identifier: http://hdl.handle.net/11260/2933 , vital:43116
- Description: This dissertation is a report of the study that was conducted in rural and urban periphery schools of Mthatha City within Mthatha Education District in the Eastern Cape, a province of South Africa. The study explored teacher-assessment practices in two selected junior secondary schools. The utmost purpose was to determine the nature of teacher-assessment practices in these junior secondary schools. This study involved mainly a quantitative research design and later supplemented by qualitative research design. The target population was made up of 63 teachers from both schools. Sampling entailed simple random sampling for quantitative approach and purposeful sampling for qualitative. Instrumentation involved questionnaires and focus group interviews to gather data for these two different research paradigms used. The data was analysed by means of SPSS for quantitative and thematically for qualitative. The results of this study from both instruments were crystallized, and indicated that teachers were grappling with difficulty in strategies and procedures of assessment due to an ever changing curriculum and overload of work. The main findings were: assessment based on content knowledge of learners, negative impact of teacher re-deployment on assessment, stress accumulated by various challenges such as overload of work and frequent curriculum changes as well as lack of data organisation and gathering. The recommendations were: workshops and training programmes on assessment to be provided to teachers; teachers should use various information sources for conducting assessment; more teachers need to be recruited for understaffing and overloading problems as well as pragmatic assessment strategies should be used for learners assessment. Teachers should be included in matters of curriculum changes and be exposed to in-service training. , Thesis (MMED) -- Faculty of Educational Sciences, 2014
- Full Text:
- Date Issued: 2014
- Authors: Xolile, Stwebile
- Date: 2014
- Language: English
- Type: Masters theses , text
- Identifier: http://hdl.handle.net/11260/2933 , vital:43116
- Description: This dissertation is a report of the study that was conducted in rural and urban periphery schools of Mthatha City within Mthatha Education District in the Eastern Cape, a province of South Africa. The study explored teacher-assessment practices in two selected junior secondary schools. The utmost purpose was to determine the nature of teacher-assessment practices in these junior secondary schools. This study involved mainly a quantitative research design and later supplemented by qualitative research design. The target population was made up of 63 teachers from both schools. Sampling entailed simple random sampling for quantitative approach and purposeful sampling for qualitative. Instrumentation involved questionnaires and focus group interviews to gather data for these two different research paradigms used. The data was analysed by means of SPSS for quantitative and thematically for qualitative. The results of this study from both instruments were crystallized, and indicated that teachers were grappling with difficulty in strategies and procedures of assessment due to an ever changing curriculum and overload of work. The main findings were: assessment based on content knowledge of learners, negative impact of teacher re-deployment on assessment, stress accumulated by various challenges such as overload of work and frequent curriculum changes as well as lack of data organisation and gathering. The recommendations were: workshops and training programmes on assessment to be provided to teachers; teachers should use various information sources for conducting assessment; more teachers need to be recruited for understaffing and overloading problems as well as pragmatic assessment strategies should be used for learners assessment. Teachers should be included in matters of curriculum changes and be exposed to in-service training. , Thesis (MMED) -- Faculty of Educational Sciences, 2014
- Full Text:
- Date Issued: 2014
Enhancement of the usability of SOA services for novice users
- Authors: Yalezo, Sabelo
- Date: 2014
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: http://hdl.handle.net/10353/822 , vital:26500
- Description: Recently, the automation of service integration has provided a significant advantage in delivering services to novice users. This art of integrating various services is known as Service Composition and its main purpose is to simplify the development process for web applications and facilitates reuse of services. It is one of the paradigms that enables services to end-users (i.e.service provisioning) through the outsourcing of web contents and it requires users to share and reuse services in more collaborative ways. Most service composers are effective at enabling integration of web contents, but they do not enable universal access across different groups of users. This is because, the currently existing content aggregators require complex interactions in order to create web applications (e.g., Web Service Business Process Execution Language (WS-BPEL)) as a result not all users are able to use such web tools. This trend demands changes in the web tools that end-users use to gain and share information, hence this research uses Mashups as a service composition technique to allow novice users to integrate publicly available Service Oriented Architecture (SOA) services, where there is a minimal active web application development. Mashups being the platforms that integrate disparate web Application Programming Interfaces (APIs) to create user defined web applications; presents a great opportunity for service provisioning. However, their usability for novice users remains invalidated since Mashup tools are not easy to use they require basic programming skills which makes the process of designing and creating Mashups difficult. This is because Mashup tools access heterogeneous web contents using public web APIs and the process of integrating them become complex since web APIs are tailored by different vendors. Moreover, the design of Mashup editors is unnecessary complex; as a result, users do not know where to start when creating Mashups. This research address the gap between Mashup tools and usability by the designing and implementing a semantically enriched Mashup tool to discover, annotate and compose APIs to improve the utilization of SOA services by novice users. The researchers conducted an analysis of the already existing Mashup tools to identify challenges and weaknesses experienced by novice Mashup users. The findings from the requirement analysis formulated the system usability requirements that informed the design and implementation of the proposed Mashup tool. The proposed architecture addressed three layers: composition, annotation and discovery. The researchers developed a simple Mashup tool referred to as soa-Services Provisioner (SerPro) that allowed novice users to create web application flexibly. Its usability and effectiveness was validated. The proposed Mashup tool enhanced the usability of SOA services, since data analysis and results showed that it was usable to novice users by scoring a System Usability Scale (SUS) score of 72.08. Furthermore, this research discusses the research limitations and future work for further improvements.
- Full Text:
- Date Issued: 2014
- Authors: Yalezo, Sabelo
- Date: 2014
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: http://hdl.handle.net/10353/822 , vital:26500
- Description: Recently, the automation of service integration has provided a significant advantage in delivering services to novice users. This art of integrating various services is known as Service Composition and its main purpose is to simplify the development process for web applications and facilitates reuse of services. It is one of the paradigms that enables services to end-users (i.e.service provisioning) through the outsourcing of web contents and it requires users to share and reuse services in more collaborative ways. Most service composers are effective at enabling integration of web contents, but they do not enable universal access across different groups of users. This is because, the currently existing content aggregators require complex interactions in order to create web applications (e.g., Web Service Business Process Execution Language (WS-BPEL)) as a result not all users are able to use such web tools. This trend demands changes in the web tools that end-users use to gain and share information, hence this research uses Mashups as a service composition technique to allow novice users to integrate publicly available Service Oriented Architecture (SOA) services, where there is a minimal active web application development. Mashups being the platforms that integrate disparate web Application Programming Interfaces (APIs) to create user defined web applications; presents a great opportunity for service provisioning. However, their usability for novice users remains invalidated since Mashup tools are not easy to use they require basic programming skills which makes the process of designing and creating Mashups difficult. This is because Mashup tools access heterogeneous web contents using public web APIs and the process of integrating them become complex since web APIs are tailored by different vendors. Moreover, the design of Mashup editors is unnecessary complex; as a result, users do not know where to start when creating Mashups. This research address the gap between Mashup tools and usability by the designing and implementing a semantically enriched Mashup tool to discover, annotate and compose APIs to improve the utilization of SOA services by novice users. The researchers conducted an analysis of the already existing Mashup tools to identify challenges and weaknesses experienced by novice Mashup users. The findings from the requirement analysis formulated the system usability requirements that informed the design and implementation of the proposed Mashup tool. The proposed architecture addressed three layers: composition, annotation and discovery. The researchers developed a simple Mashup tool referred to as soa-Services Provisioner (SerPro) that allowed novice users to create web application flexibly. Its usability and effectiveness was validated. The proposed Mashup tool enhanced the usability of SOA services, since data analysis and results showed that it was usable to novice users by scoring a System Usability Scale (SUS) score of 72.08. Furthermore, this research discusses the research limitations and future work for further improvements.
- Full Text:
- Date Issued: 2014
Synthesis of silver nanoparticles and their role against a thiazolekinase enzyme from Plasmodium falciparum
- Yao, Jia
- Authors: Yao, Jia
- Date: 2014
- Subjects: Silver , Nanoparticles , Thiazoles , Plasmodium falciparum , Antimalarials , Malaria -- Chemotherapy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4168 , http://hdl.handle.net/10962/d1020894
- Description: Malaria, a mosquito-borne infectious disease, caused by the protozoan Plasmodium genus, is the greatest health challenges worldwide. The plasmodial vitamin B1 biosynthetic enzyme PfThzK diverges significantly, both structurally and functionally from its counterpart in higher eukaryotes, thereby making it particularly attractive as a biomedical target. In the present study, PfThzK was recombinantly produced as 6×His fusion protein in E. coli BL21, purified using nickel affinity chromatography and size exclusion chromatography resulting in 1.03% yield and specific activity 0.28 U/mg. The enzyme was found to be a monomer with a molecular mass of 34 kDa. Characterization of the PfThzK showed an optimum temperature and pH of 37°C and 7.5 respectively, and it is relatively stable (t₁/₂=2.66 h). Ag nanoparticles were synthesized by NaBH₄/tannic acid, and characterized by UV-vis spectroscopy and transmission electron microscopy. The morphologies of these Ag nanoparticles (in terms of size) synthesized by tannic acid appeared to be more controlled with the size of 7.06±2.41 nm, compared with those synthesized by NaBH₄, with the sized of 12.9±4.21 nm. The purified PfThzK was challenged with Ag NPs synthesized by tannic acid, and the results suggested that they competitively inhibited PfThzK (89 %) at low concentrations (5-10 μM) with a Ki = 6.45 μM.
- Full Text:
- Date Issued: 2014
- Authors: Yao, Jia
- Date: 2014
- Subjects: Silver , Nanoparticles , Thiazoles , Plasmodium falciparum , Antimalarials , Malaria -- Chemotherapy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4168 , http://hdl.handle.net/10962/d1020894
- Description: Malaria, a mosquito-borne infectious disease, caused by the protozoan Plasmodium genus, is the greatest health challenges worldwide. The plasmodial vitamin B1 biosynthetic enzyme PfThzK diverges significantly, both structurally and functionally from its counterpart in higher eukaryotes, thereby making it particularly attractive as a biomedical target. In the present study, PfThzK was recombinantly produced as 6×His fusion protein in E. coli BL21, purified using nickel affinity chromatography and size exclusion chromatography resulting in 1.03% yield and specific activity 0.28 U/mg. The enzyme was found to be a monomer with a molecular mass of 34 kDa. Characterization of the PfThzK showed an optimum temperature and pH of 37°C and 7.5 respectively, and it is relatively stable (t₁/₂=2.66 h). Ag nanoparticles were synthesized by NaBH₄/tannic acid, and characterized by UV-vis spectroscopy and transmission electron microscopy. The morphologies of these Ag nanoparticles (in terms of size) synthesized by tannic acid appeared to be more controlled with the size of 7.06±2.41 nm, compared with those synthesized by NaBH₄, with the sized of 12.9±4.21 nm. The purified PfThzK was challenged with Ag NPs synthesized by tannic acid, and the results suggested that they competitively inhibited PfThzK (89 %) at low concentrations (5-10 μM) with a Ki = 6.45 μM.
- Full Text:
- Date Issued: 2014
A critical analysis on underutilization of Ante Natal Care services and identification of legislative implementation challenges. A case study in some health centers of Senqu Health sub-District in the Eastern Cape
- Authors: Yekani-Mati, Nokonwaba
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11713 , http://hdl.handle.net/10353/d1015248
- Description: Attention has recently focus on improved Ante Natal Care (ANC) Service utilization as one the Department of Health’s strategies in, promoting better health, ensuring safe mothers and babies, reducing HIV/Aids infection of unborn babies , their mothers and their partners, reaching out as many people, who are at the child bearing age as possible and reaching out to those people who are legible for ART during pregnancy so as to put them on ARV treatment if necessary and ensuring that the mothers, babies and partners enjoy support during the pregnancy of mothers and to prepare them for delivery . The idea is to ensure, by antenatal preparation, the best possible pregnancy outcome for women and their babies (Guidelines for MATERNITY CARE in South Africa NDOH 2007: 19).The departmental guidelines through ante natal care seek to ensure that the following take place timorously: Screening for pregnancy problems: women are done physical and examination and blood test are done to identify or exclude pregnancy problems. Assessment of pregnancy risks: Any pregnancy risks that whether physical, medical, psychological and psychosocial are identified and the mother is advised on better pregnancy management. Treatment of problems that may arise during the antenatal period: when there are existing problems that need treatment the mother get managed and is treated as according to the identified problem.
- Full Text:
- Date Issued: 2014
- Authors: Yekani-Mati, Nokonwaba
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11713 , http://hdl.handle.net/10353/d1015248
- Description: Attention has recently focus on improved Ante Natal Care (ANC) Service utilization as one the Department of Health’s strategies in, promoting better health, ensuring safe mothers and babies, reducing HIV/Aids infection of unborn babies , their mothers and their partners, reaching out as many people, who are at the child bearing age as possible and reaching out to those people who are legible for ART during pregnancy so as to put them on ARV treatment if necessary and ensuring that the mothers, babies and partners enjoy support during the pregnancy of mothers and to prepare them for delivery . The idea is to ensure, by antenatal preparation, the best possible pregnancy outcome for women and their babies (Guidelines for MATERNITY CARE in South Africa NDOH 2007: 19).The departmental guidelines through ante natal care seek to ensure that the following take place timorously: Screening for pregnancy problems: women are done physical and examination and blood test are done to identify or exclude pregnancy problems. Assessment of pregnancy risks: Any pregnancy risks that whether physical, medical, psychological and psychosocial are identified and the mother is advised on better pregnancy management. Treatment of problems that may arise during the antenatal period: when there are existing problems that need treatment the mother get managed and is treated as according to the identified problem.
- Full Text:
- Date Issued: 2014
A model of creative and innovative techniques that will prepare final year students to become entrepreneurs
- Authors: Yiadom, Michael Boakye
- Date: 2014
- Subjects: Technological innovations -- Economic aspects , Entrepreneurship -- Study and teaching
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/3812 , vital:20465
- Description: Creativity and innovation are significant for the creation of a knowledge and productive base economy with its associated growth, sustainability and job creation. However it is noticed that students will need to employ the techniques on creativity and innovation in order to prepare themselves sufficiently to become business owners and entrepreneurs in this current global world where government jobs are difficult to come by. Therefore, the primary objective of this study is to determine creative and innovative techniques that will prepare final-year students to become entrepreneurs. A hard copy Word document questionnaire was considered an appropriate measurement method for this study. The targeted population of the study included entrepreneurial experts, business owners, teachers and lecturers of business management/studies in the Sisonke District of Kwazulu Natal Province. Thus, some 100 entrepreneur experts, owners of businesses, teachers and lecturers were identified as part of the sampling frame. A total number of 67 questionnaires were administered out of the 100 targeted– giving a response rate of 67%. The quantitative data were processed using Excel, leading to appropriate descriptive statistical analyses, including frequencies, means, medians and standard deviations. In order to obtain a better understanding of a model that will prepare final year students to become entrepreneurs, problem statements and sub-problems were stated and a t-test was used to establish demographic variables, whilst correlation analysis among skills was conducted regarding the model of creative and innovative techniques. Factor analysis was conducted using the Cronbach’s alpha coefficient which confirms that training in the model will prepare students to become entrepreneurs. The results from the empirical study revealed that a model of creative and innovative techniques will prepare students to become entrepreneurs, with a total of 70% of respondents attesting to it. Based on the relevant literature study and the empirical results, recommendations were made in order to support the training needs of students on creativity and innovation techniques. However, the unavailability of an exhaustive entrepreneurial experts database and small number of further education and training colleges in the Sisonke District, did not allow the research to draw on a larger representative sample. Thus, this limitation has impeded in-depth statistical analysis that would have allowed the research to obtain more accurate findings. Further studies could be investigated from lecturers, business owners and experts whether an introduction of a special curriculum on creativity and innovation in further education and training schools may prepare students to become entrepreneurs.
- Full Text:
- Date Issued: 2014
- Authors: Yiadom, Michael Boakye
- Date: 2014
- Subjects: Technological innovations -- Economic aspects , Entrepreneurship -- Study and teaching
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/3812 , vital:20465
- Description: Creativity and innovation are significant for the creation of a knowledge and productive base economy with its associated growth, sustainability and job creation. However it is noticed that students will need to employ the techniques on creativity and innovation in order to prepare themselves sufficiently to become business owners and entrepreneurs in this current global world where government jobs are difficult to come by. Therefore, the primary objective of this study is to determine creative and innovative techniques that will prepare final-year students to become entrepreneurs. A hard copy Word document questionnaire was considered an appropriate measurement method for this study. The targeted population of the study included entrepreneurial experts, business owners, teachers and lecturers of business management/studies in the Sisonke District of Kwazulu Natal Province. Thus, some 100 entrepreneur experts, owners of businesses, teachers and lecturers were identified as part of the sampling frame. A total number of 67 questionnaires were administered out of the 100 targeted– giving a response rate of 67%. The quantitative data were processed using Excel, leading to appropriate descriptive statistical analyses, including frequencies, means, medians and standard deviations. In order to obtain a better understanding of a model that will prepare final year students to become entrepreneurs, problem statements and sub-problems were stated and a t-test was used to establish demographic variables, whilst correlation analysis among skills was conducted regarding the model of creative and innovative techniques. Factor analysis was conducted using the Cronbach’s alpha coefficient which confirms that training in the model will prepare students to become entrepreneurs. The results from the empirical study revealed that a model of creative and innovative techniques will prepare students to become entrepreneurs, with a total of 70% of respondents attesting to it. Based on the relevant literature study and the empirical results, recommendations were made in order to support the training needs of students on creativity and innovation techniques. However, the unavailability of an exhaustive entrepreneurial experts database and small number of further education and training colleges in the Sisonke District, did not allow the research to draw on a larger representative sample. Thus, this limitation has impeded in-depth statistical analysis that would have allowed the research to obtain more accurate findings. Further studies could be investigated from lecturers, business owners and experts whether an introduction of a special curriculum on creativity and innovation in further education and training schools may prepare students to become entrepreneurs.
- Full Text:
- Date Issued: 2014
Photophysicochemical properties and TD-DFT calculations of a novel terminal alkyne substituted metal free phthalocyanine
- Yilmaz, Yusuf, Mack, John, Sönmez, Mehmet, Nyokong, Tebello
- Authors: Yilmaz, Yusuf , Mack, John , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241562 , vital:50950 , xlink:href="https://doi.org/10.1142/S1088424613501241"
- Description: The synthesis of a novel free base tetrakis(prop-2-ynyloxy)phthalocyanine (2) is described, along with its characterization by IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. The compound exhibited good solubility in a wide range of organic solvents and no significant aggregation was observed over a wide concentration range. The values for the singlet oxygen (ΦΔ), photodegradation, fluorescence (ΦF) and triplet state quantum yields and the fluorescence and triplet state lifetimes are reported. A relatively high ΦΔ value of 0.46 was obtained in DMSO. The ability to carry out "click" chemistry at the ligand periphery enhances the potential utility of 2 for use in bioconjugates in photodynamic therapy (PDT). A moderately high ΦF value of 0.18 is observed for emission in the therapeutic window in the near-IR region, which suggests that it may also be possible to determine the level of localization of 2 in tumor cells through bioimaging.
- Full Text:
- Date Issued: 2014
- Authors: Yilmaz, Yusuf , Mack, John , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241562 , vital:50950 , xlink:href="https://doi.org/10.1142/S1088424613501241"
- Description: The synthesis of a novel free base tetrakis(prop-2-ynyloxy)phthalocyanine (2) is described, along with its characterization by IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. The compound exhibited good solubility in a wide range of organic solvents and no significant aggregation was observed over a wide concentration range. The values for the singlet oxygen (ΦΔ), photodegradation, fluorescence (ΦF) and triplet state quantum yields and the fluorescence and triplet state lifetimes are reported. A relatively high ΦΔ value of 0.46 was obtained in DMSO. The ability to carry out "click" chemistry at the ligand periphery enhances the potential utility of 2 for use in bioconjugates in photodynamic therapy (PDT). A moderately high ΦF value of 0.18 is observed for emission in the therapeutic window in the near-IR region, which suggests that it may also be possible to determine the level of localization of 2 in tumor cells through bioimaging.
- Full Text:
- Date Issued: 2014