The performance of South African and British children on the Griffiths Mental Development Scales- extended revised a comparative study
- Authors: Van Rooyen, Kempie
- Date: 2005
- Subjects: Psychological tests for children -- Cross-cultural studies , Children -- Intelligence testing -- Cross-cultural studies , Griffiths Scales of Mental Development
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9850 , http://hdl.handle.net/10948/370 , http://hdl.handle.net/10948/d1005819 , Psychological tests for children -- Cross-cultural studies , Children -- Intelligence testing -- Cross-cultural studies , Griffiths Scales of Mental Development
- Description: The South African context necessitates developmental assessment measures with particular characteristics. A critical examination of a variety of potential measures indicates that there are very few measures available to meet these specific needs. The GMDS-ER is judged to be one such measure. This study explores the performance of South African children aged 4 to 7 years of age as it relates to that of British children (from the standardisation sample). The samples consisted of normal South African (n=129) and British (n=161) children, where normalcy refers to the absence of sensory, physical, or mental handicap. The study was done in an attempt to explore the suitability of using the GMDS-ER in the South African context. More specifically, the following two aims were pursued: 1. To explore and describe the general development of each of four year groups of a sample of British and South African children by utilising the general developmental quotient of the GMDS-ER 2. To explore and describe the comparative developmental profiles of each of the four year groups of a sample of British and South African children across the six developmental areas represented by the subscales of the GMDS-ER. Descriptive statistics and simple t-tests were used to accomplish Aim 1 and Hotellings T2 tests were mainly used in order to accomplish Aim 2. The major findings of the present study were as follows: 1. South African and British children’s overall performances (as measured by the GMDS-ER GQ) are similar. A great deal of variability exists between the GMDS-ER profiles of normal South African and British children (i.e., when individual subscales and year groups are considered). 3. In general, South African children performed better on the Locomotor and Personal-Social Subscales, while British children performed better on the Language and Practical Reasoning Subscales. Performance on the Eye and Hand Coordination Subscale was similar for the two samples and on the Performance Subscale performance was too variable to come to any general conclusions. In view of the findings, caution with regard to the use of the British-based norms in the South African context is recommended. Recommendations are made for the use of the GMDS-ER to help with the identification of specific classes of disorders in the South African context. Further investigation into the applicability of the GMDS-ER for South African use as well as the establishment of South African norms are final recommendations.
- Full Text:
- Date Issued: 2005
- Authors: Van Rooyen, Kempie
- Date: 2005
- Subjects: Psychological tests for children -- Cross-cultural studies , Children -- Intelligence testing -- Cross-cultural studies , Griffiths Scales of Mental Development
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9850 , http://hdl.handle.net/10948/370 , http://hdl.handle.net/10948/d1005819 , Psychological tests for children -- Cross-cultural studies , Children -- Intelligence testing -- Cross-cultural studies , Griffiths Scales of Mental Development
- Description: The South African context necessitates developmental assessment measures with particular characteristics. A critical examination of a variety of potential measures indicates that there are very few measures available to meet these specific needs. The GMDS-ER is judged to be one such measure. This study explores the performance of South African children aged 4 to 7 years of age as it relates to that of British children (from the standardisation sample). The samples consisted of normal South African (n=129) and British (n=161) children, where normalcy refers to the absence of sensory, physical, or mental handicap. The study was done in an attempt to explore the suitability of using the GMDS-ER in the South African context. More specifically, the following two aims were pursued: 1. To explore and describe the general development of each of four year groups of a sample of British and South African children by utilising the general developmental quotient of the GMDS-ER 2. To explore and describe the comparative developmental profiles of each of the four year groups of a sample of British and South African children across the six developmental areas represented by the subscales of the GMDS-ER. Descriptive statistics and simple t-tests were used to accomplish Aim 1 and Hotellings T2 tests were mainly used in order to accomplish Aim 2. The major findings of the present study were as follows: 1. South African and British children’s overall performances (as measured by the GMDS-ER GQ) are similar. A great deal of variability exists between the GMDS-ER profiles of normal South African and British children (i.e., when individual subscales and year groups are considered). 3. In general, South African children performed better on the Locomotor and Personal-Social Subscales, while British children performed better on the Language and Practical Reasoning Subscales. Performance on the Eye and Hand Coordination Subscale was similar for the two samples and on the Performance Subscale performance was too variable to come to any general conclusions. In view of the findings, caution with regard to the use of the British-based norms in the South African context is recommended. Recommendations are made for the use of the GMDS-ER to help with the identification of specific classes of disorders in the South African context. Further investigation into the applicability of the GMDS-ER for South African use as well as the establishment of South African norms are final recommendations.
- Full Text:
- Date Issued: 2005
The poetry of Guy Butler
- Authors: Maclennan, D A C
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6119 , http://hdl.handle.net/10962/d1004673
- Description: [From the introduction]: Guy Butler, born in Cradock on 21 January 1918, was a serious poet. Nearly a third of his poems are about death or loss, and many of the rest about parting failure, or difficult self-denial. His poetry is generally thoughtful and responsible to a deep religious vision. Of the ninety poems published between 1939 and 1979 the finest are those written between 1943 and 1963, from “Syrian Spring” to “Sweetwater.” The best poems cluster like moons round “On First Seeing Florence,” which is a major poem seldom given its rightful attention.
- Full Text:
- Date Issued: 2005
- Authors: Maclennan, D A C
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6119 , http://hdl.handle.net/10962/d1004673
- Description: [From the introduction]: Guy Butler, born in Cradock on 21 January 1918, was a serious poet. Nearly a third of his poems are about death or loss, and many of the rest about parting failure, or difficult self-denial. His poetry is generally thoughtful and responsible to a deep religious vision. Of the ninety poems published between 1939 and 1979 the finest are those written between 1943 and 1963, from “Syrian Spring” to “Sweetwater.” The best poems cluster like moons round “On First Seeing Florence,” which is a major poem seldom given its rightful attention.
- Full Text:
- Date Issued: 2005
The politics of humanitarian organizations neutrality and solidarity: the case of the ICRC and MSF during the 1994 Rwandan genocide
- Authors: Delvaux, Denise
- Date: 2005
- Subjects: International Committee of the Red Cross -- History , Médecins sans frontières (Association) , Humanitarian intervention , Neutrality -- Rwanda , Solidarity -- Rwanda , Genocide -- Rwanda -- History -- 20th century , Genocide -- Rwanda , Rwanda -- History -- Civil War, 1994 , Rwanda -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2769 , http://hdl.handle.net/10962/d1002979 , International Committee of the Red Cross -- History , Médecins sans frontières (Association) , Humanitarian intervention , Neutrality -- Rwanda , Solidarity -- Rwanda , Genocide -- Rwanda -- History -- 20th century , Genocide -- Rwanda , Rwanda -- History -- Civil War, 1994 , Rwanda -- Politics and government
- Description: With the seemingly infinite existence of complex emergencies and the overwhelming presence of humanitarian organizations responding to such crises, it is essential that the assumptions, precepts, and actions of humanitarian organizations be critically examined and understood. The aim of this thesis is to explore differing traditions within humanitarian thought: neutrality and solidarity. In the process, this thesis will determine whether it is possible to maintain clear ideologies in the context of a complex emergency and whether the existence of different humanitarian ideologies results in a dichotomy or polarization of humanitarian action. This study is of great import as it delves into the contemporary literature claiming that humanitarianism is currently in a state of crisis – the unsustainability of competing humanitarian ideologies operating together in a complex emergency. Primary documents from both the International Committee of the Red Cross (ICRC) and Médecins Sans Frontières (MSF) regarding their operations in the 1994 Rwandan complex emergency were examined in order to provide a foundation for the theoretical investigation. Although the ICRC and MSF occupy seemingly polarized positions in the neutrality – solidarity debate, the investigation into their humanitarian activities during the 1994 genocide and the resulting refugee crisis reflected the difficulties of providing relief based upon humanitarian ideals. Due to the complex realities of the 1994 Rwandan crisis, the ideological notions dividing the ICRC and MSF were overshadowed by the simple humanitarian desire to aid those in need.
- Full Text:
- Date Issued: 2005
- Authors: Delvaux, Denise
- Date: 2005
- Subjects: International Committee of the Red Cross -- History , Médecins sans frontières (Association) , Humanitarian intervention , Neutrality -- Rwanda , Solidarity -- Rwanda , Genocide -- Rwanda -- History -- 20th century , Genocide -- Rwanda , Rwanda -- History -- Civil War, 1994 , Rwanda -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2769 , http://hdl.handle.net/10962/d1002979 , International Committee of the Red Cross -- History , Médecins sans frontières (Association) , Humanitarian intervention , Neutrality -- Rwanda , Solidarity -- Rwanda , Genocide -- Rwanda -- History -- 20th century , Genocide -- Rwanda , Rwanda -- History -- Civil War, 1994 , Rwanda -- Politics and government
- Description: With the seemingly infinite existence of complex emergencies and the overwhelming presence of humanitarian organizations responding to such crises, it is essential that the assumptions, precepts, and actions of humanitarian organizations be critically examined and understood. The aim of this thesis is to explore differing traditions within humanitarian thought: neutrality and solidarity. In the process, this thesis will determine whether it is possible to maintain clear ideologies in the context of a complex emergency and whether the existence of different humanitarian ideologies results in a dichotomy or polarization of humanitarian action. This study is of great import as it delves into the contemporary literature claiming that humanitarianism is currently in a state of crisis – the unsustainability of competing humanitarian ideologies operating together in a complex emergency. Primary documents from both the International Committee of the Red Cross (ICRC) and Médecins Sans Frontières (MSF) regarding their operations in the 1994 Rwandan complex emergency were examined in order to provide a foundation for the theoretical investigation. Although the ICRC and MSF occupy seemingly polarized positions in the neutrality – solidarity debate, the investigation into their humanitarian activities during the 1994 genocide and the resulting refugee crisis reflected the difficulties of providing relief based upon humanitarian ideals. Due to the complex realities of the 1994 Rwandan crisis, the ideological notions dividing the ICRC and MSF were overshadowed by the simple humanitarian desire to aid those in need.
- Full Text:
- Date Issued: 2005
The potential of claywork to facilitate the integration of the self in psychotherapy with an adult survivor of childhood trauma: a Jungian perspective
- Authors: Smuts, Tanja
- Date: 2005
- Subjects: Jung, C G (Carl Gustav), 1875-1961 , Art therapy , Psychotherapy , Child psychotherapy , Adult child abuse victims -- Rehabilitation , Self , Modeling -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3062 , http://hdl.handle.net/10962/d1002571 , Jung, C G (Carl Gustav), 1875-1961 , Art therapy , Psychotherapy , Child psychotherapy , Adult child abuse victims -- Rehabilitation , Self , Modeling -- Therapeutic use
- Description: The aim of this thesis was to explore the experience of “self” within the clinical context of adult survivors of childhood trauma. Childhood trauma in this study referred to a range of childhood experiences of emotional and physical assault, including encounters with various kinds of abuse and neglect. The focus was on the experience of a sense of disintegration and dislocation, associated to aspects of self being in conflict. This was explored from theoretical perspectives of Jungian analytic psychology, as well as art therapy.Answers were sought to the questions of how claywork, as a form of art therapy, may facilitate the integration of the self and contribute to the development of a healing dialogue with feared and hated aspects of self. Grounded in Jungian theory, integration of the self was conceptualised as a movement towards “differentiating wholeness”. The study took the form of a phenomenological-hermeneutic case study. One participant’s experience of making and discussing a clay sculpture in a therapeutic setting according to Edwards’ method, was analysed thematically. It was concluded that the potential of claywork in therapy to facilitate the integration of the self is related to three aspects. Firstly, claywork in therapy may promote a concrete personification of feared and hated aspects of self, which may enable the maker to view these aspects from a distance, and learn to understand them in a new way. Secondly, claywork in therapy may facilitate the safe ‘unearthing’ of repressed feelings as well as hidden aspects of the personality. Thirdly, claywork’s potential to mediate symbolic functioning was shown to be an important aspect of the integration process. These findings confirmed and extended existing theory regarding the usefulness of claywork in psychotherapy with adult survivors of childhood trauma. Brief recommendations for future research were provided.
- Full Text:
- Date Issued: 2005
- Authors: Smuts, Tanja
- Date: 2005
- Subjects: Jung, C G (Carl Gustav), 1875-1961 , Art therapy , Psychotherapy , Child psychotherapy , Adult child abuse victims -- Rehabilitation , Self , Modeling -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3062 , http://hdl.handle.net/10962/d1002571 , Jung, C G (Carl Gustav), 1875-1961 , Art therapy , Psychotherapy , Child psychotherapy , Adult child abuse victims -- Rehabilitation , Self , Modeling -- Therapeutic use
- Description: The aim of this thesis was to explore the experience of “self” within the clinical context of adult survivors of childhood trauma. Childhood trauma in this study referred to a range of childhood experiences of emotional and physical assault, including encounters with various kinds of abuse and neglect. The focus was on the experience of a sense of disintegration and dislocation, associated to aspects of self being in conflict. This was explored from theoretical perspectives of Jungian analytic psychology, as well as art therapy.Answers were sought to the questions of how claywork, as a form of art therapy, may facilitate the integration of the self and contribute to the development of a healing dialogue with feared and hated aspects of self. Grounded in Jungian theory, integration of the self was conceptualised as a movement towards “differentiating wholeness”. The study took the form of a phenomenological-hermeneutic case study. One participant’s experience of making and discussing a clay sculpture in a therapeutic setting according to Edwards’ method, was analysed thematically. It was concluded that the potential of claywork in therapy to facilitate the integration of the self is related to three aspects. Firstly, claywork in therapy may promote a concrete personification of feared and hated aspects of self, which may enable the maker to view these aspects from a distance, and learn to understand them in a new way. Secondly, claywork in therapy may facilitate the safe ‘unearthing’ of repressed feelings as well as hidden aspects of the personality. Thirdly, claywork’s potential to mediate symbolic functioning was shown to be an important aspect of the integration process. These findings confirmed and extended existing theory regarding the usefulness of claywork in psychotherapy with adult survivors of childhood trauma. Brief recommendations for future research were provided.
- Full Text:
- Date Issued: 2005
The refinement of protective salinity guidelines for South African freshwater resources
- Authors: Slaughter, Andrew Robert
- Date: 2005
- Subjects: Water salinization -- South Africa Salinization -- Control -- South Africa Salinity -- South Africa Freshwater ecology -- South Africa Water resources development -- South Africa Caridina Caridina -- Effect of pollution
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:6031 , http://hdl.handle.net/10962/d1006170
- Description: South Africa is an arid country and its growing population is putting freshwater resources under increasing pressure. Natural salinization of freshwater systems is being exacerbated by anthropogenic influences. The National Water Act (No. 36 of 1998) stipulates the need for an ecological Reserve, that quantity and quality of freshwater needed to protect freshwater ecosystems while allowing sustainable use of freshwater resources. Water guidelines do exist in the form of the South African Water Quality Guidelines (DWAF, 1996) and more recently, Jooste and Rossouw (2002) compiled benchmark values for water quality variables marking the boundaries between ecological health classes in the 4-category classification system. Predominantly international toxicity data were used to compile the guidelines and the benchmark values. In addition, there is a paucity of chronic toxicity data nationally and internationally. This thesis showed that it is statistically possible to derive protective chronic endpoints for salinity from acute toxicity data through extrapolation. The Acute to Chronic Ratio (ACR), Two-Step Linear Regression (LRA) and Multi-Factor Probit Analysis (MPA) extrapolation methods were investigated to derive chronic toxicity data from acute toxicity data. The authors of LRA and MPA recommend associating a time independent LCx value in the range of LC₀¸₀₁ to LC₁₀ with a Predicted No Effect Concentration (PNOEC). In addition to published methods, this thesis studied the possibility of equating a time independent LC₅₀ value and subjected to a safety factor of 5 (LRA LC₅₀/5), to the PNOEC. Extrapolated chronic toxicity data where the toxicants are NaCl and Na₂SO₄ were derived for indigenous South African macroinvertebrates. NaCl and Na₂SO₄ are salts associated with salinisation in South Africa. In addition, a chronic salinity toxicity test protocol for an indigenous South African aquatic macroinvertebrate was designed and chronic toxicity test were performed using NaCl and Na₂SO₄ as toxicants. The experimental chronic toxicity data produced were used to validate results from the acute to chronic extrapolation methods. Extrapolated chronic toxicity data were inputted into Species Sensitivity Distribution curves, and concentrations that were predicted to protect 95 % of species (PC95) were compared to the sub-lethality benchmarks proposed by Jooste and Rossouw (2002) for NaCl and Na₂SO₄. This study concluded that the LRA LC₅₀/5 extrapolation method is the most protective and accurate and proposed that LRA replace the ACR method in future guideline development for inorganic salts.
- Full Text:
- Date Issued: 2005
- Authors: Slaughter, Andrew Robert
- Date: 2005
- Subjects: Water salinization -- South Africa Salinization -- Control -- South Africa Salinity -- South Africa Freshwater ecology -- South Africa Water resources development -- South Africa Caridina Caridina -- Effect of pollution
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:6031 , http://hdl.handle.net/10962/d1006170
- Description: South Africa is an arid country and its growing population is putting freshwater resources under increasing pressure. Natural salinization of freshwater systems is being exacerbated by anthropogenic influences. The National Water Act (No. 36 of 1998) stipulates the need for an ecological Reserve, that quantity and quality of freshwater needed to protect freshwater ecosystems while allowing sustainable use of freshwater resources. Water guidelines do exist in the form of the South African Water Quality Guidelines (DWAF, 1996) and more recently, Jooste and Rossouw (2002) compiled benchmark values for water quality variables marking the boundaries between ecological health classes in the 4-category classification system. Predominantly international toxicity data were used to compile the guidelines and the benchmark values. In addition, there is a paucity of chronic toxicity data nationally and internationally. This thesis showed that it is statistically possible to derive protective chronic endpoints for salinity from acute toxicity data through extrapolation. The Acute to Chronic Ratio (ACR), Two-Step Linear Regression (LRA) and Multi-Factor Probit Analysis (MPA) extrapolation methods were investigated to derive chronic toxicity data from acute toxicity data. The authors of LRA and MPA recommend associating a time independent LCx value in the range of LC₀¸₀₁ to LC₁₀ with a Predicted No Effect Concentration (PNOEC). In addition to published methods, this thesis studied the possibility of equating a time independent LC₅₀ value and subjected to a safety factor of 5 (LRA LC₅₀/5), to the PNOEC. Extrapolated chronic toxicity data where the toxicants are NaCl and Na₂SO₄ were derived for indigenous South African macroinvertebrates. NaCl and Na₂SO₄ are salts associated with salinisation in South Africa. In addition, a chronic salinity toxicity test protocol for an indigenous South African aquatic macroinvertebrate was designed and chronic toxicity test were performed using NaCl and Na₂SO₄ as toxicants. The experimental chronic toxicity data produced were used to validate results from the acute to chronic extrapolation methods. Extrapolated chronic toxicity data were inputted into Species Sensitivity Distribution curves, and concentrations that were predicted to protect 95 % of species (PC95) were compared to the sub-lethality benchmarks proposed by Jooste and Rossouw (2002) for NaCl and Na₂SO₄. This study concluded that the LRA LC₅₀/5 extrapolation method is the most protective and accurate and proposed that LRA replace the ACR method in future guideline development for inorganic salts.
- Full Text:
- Date Issued: 2005
The reflection on peace agreements in Africa: feature
- Authors: Bischoff, Paul, 1954-
- Date: 2005
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/161398 , vital:40623
- Description: For Africa, the advent of globalisation, delivered in the shape of Structural Adjustment Programmes in the period from the early 1980s, ushered in the beginning of the end of the nation-building framework adopted at independence. Government's withdrawal from social, intellectual and economic areas of life brought into sharp relief the vulnerability of both state and society. Accompanied on the foreign policy front by a loss of Big Power protection after the Cold War ended, 'low and intrastate politics' came to the fore.
- Full Text:
- Date Issued: 2005
- Authors: Bischoff, Paul, 1954-
- Date: 2005
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/161398 , vital:40623
- Description: For Africa, the advent of globalisation, delivered in the shape of Structural Adjustment Programmes in the period from the early 1980s, ushered in the beginning of the end of the nation-building framework adopted at independence. Government's withdrawal from social, intellectual and economic areas of life brought into sharp relief the vulnerability of both state and society. Accompanied on the foreign policy front by a loss of Big Power protection after the Cold War ended, 'low and intrastate politics' came to the fore.
- Full Text:
- Date Issued: 2005
The relationship between leadership and internal customer satisfaction within a motor manufacturing company in Gauteng
- Authors: Samuel, Glen
- Date: 2005
- Subjects: Automobile industry and trade -- Employees -- South Africa -- Gauteng Automobile industry and trade -- Customer services -- South Africa -- Gauteng Job satisfaction Customer services -- Management Industrial relations -- South Africa -- Gauteng Employee morale Personnel management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:758 , http://hdl.handle.net/10962/d1003879
- Description: This research investigates the relationship between leadership and internal customer satisfaction, also called employee satisfaction in this document. The research is conducted within an automotive manufacturer situated in the province of Gauteng, South Africa. The Service Profit Chain forms the foundation on which this research is based as it suggests that the various factors within the service delivery system of an organisation ultimately affect the success of an organisation. From the Service Profit Chain, it is established that a factor that affects employee satisfaction is the leadership within the organisation. The Full Range Leadership Development Theory provides the backbone for analysing the leadership style of each manager by using the Multifactor Leadership Questionnaire. The company’s employee satisfaction model provides the theoretical construct against which the employee satisfaction of the managers’ subordinates is measured using the company’s employee satisfaction questionnaire. Information was gathered from the managers who rated their leadership styles as they perceived it; and from their respective subordinates who rated the managers’ leadership style as they perceived it and also their satisfaction as employees as they perceived it. Data obtained from each instrument, for the respective managers, was then statistically analysed. The reliability of the data could not be proved for some of the factors of the 2 research instruments. However, this research found a statistically significant relationship between transformational leadership and some factors of employee satisfaction, albeit a weak relationship. The null hypothesis was rejected and the alternate hypothesis accepted. A statistically significant relationship exists between leadership style and employee satisfaction levels within an automotive manufacturing organisation.
- Full Text:
- Date Issued: 2005
- Authors: Samuel, Glen
- Date: 2005
- Subjects: Automobile industry and trade -- Employees -- South Africa -- Gauteng Automobile industry and trade -- Customer services -- South Africa -- Gauteng Job satisfaction Customer services -- Management Industrial relations -- South Africa -- Gauteng Employee morale Personnel management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:758 , http://hdl.handle.net/10962/d1003879
- Description: This research investigates the relationship between leadership and internal customer satisfaction, also called employee satisfaction in this document. The research is conducted within an automotive manufacturer situated in the province of Gauteng, South Africa. The Service Profit Chain forms the foundation on which this research is based as it suggests that the various factors within the service delivery system of an organisation ultimately affect the success of an organisation. From the Service Profit Chain, it is established that a factor that affects employee satisfaction is the leadership within the organisation. The Full Range Leadership Development Theory provides the backbone for analysing the leadership style of each manager by using the Multifactor Leadership Questionnaire. The company’s employee satisfaction model provides the theoretical construct against which the employee satisfaction of the managers’ subordinates is measured using the company’s employee satisfaction questionnaire. Information was gathered from the managers who rated their leadership styles as they perceived it; and from their respective subordinates who rated the managers’ leadership style as they perceived it and also their satisfaction as employees as they perceived it. Data obtained from each instrument, for the respective managers, was then statistically analysed. The reliability of the data could not be proved for some of the factors of the 2 research instruments. However, this research found a statistically significant relationship between transformational leadership and some factors of employee satisfaction, albeit a weak relationship. The null hypothesis was rejected and the alternate hypothesis accepted. A statistically significant relationship exists between leadership style and employee satisfaction levels within an automotive manufacturing organisation.
- Full Text:
- Date Issued: 2005
The relevance of (South African) Renaissance studies
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: text , article
- Identifier: vital:7055 , http://hdl.handle.net/10962/d1007416 , https://www.ajol.info/index.php/sisa/article/view/40550
- Description: preprint , This paper is part of a longer piece devoted to the elucidation of two related propositions. The first is that in South Africa the humanities in general, and Renaissance Studies in particular, are stymied by a lack of strategic thinking from those in the academy. The second is that the humanities, and Renaissance Studies, and Shakespeare, are valid and needed in this country, possibly as never before. This paper tackles the latter question, the challenge of intrinsic relevance. What possible bearing have art and literature, politics and religion, customs and technologies developed 10,000 kilometres away and nearly half a millennium ago to do with South Africa in the 21st century? I steal up on the main issue by outlining an abbreviated rhetoric of relevance, establishing a framework within which intrinsic relevance can be conceptualised for Renaissance Studies today.
- Full Text:
- Date Issued: 2005
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: text , article
- Identifier: vital:7055 , http://hdl.handle.net/10962/d1007416 , https://www.ajol.info/index.php/sisa/article/view/40550
- Description: preprint , This paper is part of a longer piece devoted to the elucidation of two related propositions. The first is that in South Africa the humanities in general, and Renaissance Studies in particular, are stymied by a lack of strategic thinking from those in the academy. The second is that the humanities, and Renaissance Studies, and Shakespeare, are valid and needed in this country, possibly as never before. This paper tackles the latter question, the challenge of intrinsic relevance. What possible bearing have art and literature, politics and religion, customs and technologies developed 10,000 kilometres away and nearly half a millennium ago to do with South Africa in the 21st century? I steal up on the main issue by outlining an abbreviated rhetoric of relevance, establishing a framework within which intrinsic relevance can be conceptualised for Renaissance Studies today.
- Full Text:
- Date Issued: 2005
The right to mother tongue education a multi-disciplinary, normative perspective
- Authors: Prinsloo, Dawn Lilian
- Date: 2005
- Subjects: Native language and education -- Government policy -- South Africa , Language and education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10999 , http://hdl.handle.net/10948/365 , Native language and education -- Government policy -- South Africa , Language and education -- South Africa
- Description: The post-apartheid South African Constitution guarantees the children of this country “the right to receive education in the official language or languages of their choice in public education institutions where that education is reasonably practicable” (The Constitution of the Republic of South Africa, Act 108 of 1996, Section 29 (2)) (Juta’s Statutes 2003). Yet ten years into the new dispensation nothing significant has been done to alter a situation in which the majority of children are obliged to access their basic education largely through the medium of a second or even a third language — English. In contravention of both the intentions and the specific provisions of numerous legislative measures and policy statements, Government has made no serious or effective attempt to promote the use of any language other than English in South African schools nor to encourage language practices most conducive to the cognitive development and academic success of millions of non-English speaking pupils. To make matters worse, most of the children who enter the school system with very little knowledge of English and are expected to make an abrupt transition to that language as a medium of instruction after a totally inadequate three years are from impoverished households and communities still suffering the gravest effects of the discrimination and oppression of apartheid. They are often underprepared and seriously disadvantaged by their background circumstances when they enter the culturally strange and intimidating western-style education system. To heap on top of these disadvantages the burden of language practices in the classroom that hinder rather than facilitate their access to education is indefensible. When Macdonald asks, “ Are our children still swimming up the waterfall?” (Macdonald 2002: 111) she is not exaggerating. In these circumstances and if ineffective language teaching and inadequate use of the mother tongue as a medium of instruction can be shown to bar effective access to basic education of an acceptable standard, there are far more serious and far-reaching implications in terms of human rights than just the right to choice of language medium. Linguistic research into medium of instruction has tended to be isolated from evaluative legal approaches to minority language rights, children’s rights, education rights or other fundamental human rights. Insufficient attention has been given to the interrelationship between the various rights and the importance of local conditions and circumstances in any assessment of their relative weight and enforceability. Human rights cannot be seen out of context, and theory from various disciplines, such as politics, economics and linguistics may be invaluable in forming a fresh perspective on the right to mother tongue education and, indeed, to basic education in general. The principle of non-discrimination in education is generally recognised, to be sure, as is the importance of ensuring access to and quality of education (Strydom 1992/93:139), but the dependence of these factors on the most appropriate medium of instruction within the education system does not merit much attention in the literature. The right to basic education tends to be seen as separate from any possible right to choice of medium of instruction and the latter often merely as a question of convenience or preference, at best a qualified right (Oosthuizen and Rossouw 2001: 666), dependent on feasibility, numbers and available finance (Motata and Lemmer 2002: 111). In fact, the case for regarding the right to mother tongue education as a strong positive right in many contexts and countries does not appear yet to have been made. This study is theoretical in nature and constitutes an attempt to fill this gap by examining the findings and views of experts from various disciplines within the framework of current thinking on human rights issues. The development of a coherent framework within which to view the right to mother tongue education and government obligations in connection therewith might be of some value to policy makers in their efforts to plan improvements within the education system. The synthesis and possibly, to a limited extent, the development of theory from the relevant disciplines will be undertaken by means of a survey of the relevant literature, an analysis of not only local but also international legislation and policy documents and the weighing and balancing of conflicting evidence and contrasting viewpoints. Sources and contributions in each area will be discussed under the headings outlined in Chapter 3. First, however, I should like to provide an overview of the educational, political and economic context in which mother tongue education must be considered.
- Full Text:
- Date Issued: 2005
- Authors: Prinsloo, Dawn Lilian
- Date: 2005
- Subjects: Native language and education -- Government policy -- South Africa , Language and education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10999 , http://hdl.handle.net/10948/365 , Native language and education -- Government policy -- South Africa , Language and education -- South Africa
- Description: The post-apartheid South African Constitution guarantees the children of this country “the right to receive education in the official language or languages of their choice in public education institutions where that education is reasonably practicable” (The Constitution of the Republic of South Africa, Act 108 of 1996, Section 29 (2)) (Juta’s Statutes 2003). Yet ten years into the new dispensation nothing significant has been done to alter a situation in which the majority of children are obliged to access their basic education largely through the medium of a second or even a third language — English. In contravention of both the intentions and the specific provisions of numerous legislative measures and policy statements, Government has made no serious or effective attempt to promote the use of any language other than English in South African schools nor to encourage language practices most conducive to the cognitive development and academic success of millions of non-English speaking pupils. To make matters worse, most of the children who enter the school system with very little knowledge of English and are expected to make an abrupt transition to that language as a medium of instruction after a totally inadequate three years are from impoverished households and communities still suffering the gravest effects of the discrimination and oppression of apartheid. They are often underprepared and seriously disadvantaged by their background circumstances when they enter the culturally strange and intimidating western-style education system. To heap on top of these disadvantages the burden of language practices in the classroom that hinder rather than facilitate their access to education is indefensible. When Macdonald asks, “ Are our children still swimming up the waterfall?” (Macdonald 2002: 111) she is not exaggerating. In these circumstances and if ineffective language teaching and inadequate use of the mother tongue as a medium of instruction can be shown to bar effective access to basic education of an acceptable standard, there are far more serious and far-reaching implications in terms of human rights than just the right to choice of language medium. Linguistic research into medium of instruction has tended to be isolated from evaluative legal approaches to minority language rights, children’s rights, education rights or other fundamental human rights. Insufficient attention has been given to the interrelationship between the various rights and the importance of local conditions and circumstances in any assessment of their relative weight and enforceability. Human rights cannot be seen out of context, and theory from various disciplines, such as politics, economics and linguistics may be invaluable in forming a fresh perspective on the right to mother tongue education and, indeed, to basic education in general. The principle of non-discrimination in education is generally recognised, to be sure, as is the importance of ensuring access to and quality of education (Strydom 1992/93:139), but the dependence of these factors on the most appropriate medium of instruction within the education system does not merit much attention in the literature. The right to basic education tends to be seen as separate from any possible right to choice of medium of instruction and the latter often merely as a question of convenience or preference, at best a qualified right (Oosthuizen and Rossouw 2001: 666), dependent on feasibility, numbers and available finance (Motata and Lemmer 2002: 111). In fact, the case for regarding the right to mother tongue education as a strong positive right in many contexts and countries does not appear yet to have been made. This study is theoretical in nature and constitutes an attempt to fill this gap by examining the findings and views of experts from various disciplines within the framework of current thinking on human rights issues. The development of a coherent framework within which to view the right to mother tongue education and government obligations in connection therewith might be of some value to policy makers in their efforts to plan improvements within the education system. The synthesis and possibly, to a limited extent, the development of theory from the relevant disciplines will be undertaken by means of a survey of the relevant literature, an analysis of not only local but also international legislation and policy documents and the weighing and balancing of conflicting evidence and contrasting viewpoints. Sources and contributions in each area will be discussed under the headings outlined in Chapter 3. First, however, I should like to provide an overview of the educational, political and economic context in which mother tongue education must be considered.
- Full Text:
- Date Issued: 2005
The role of a principal in an academically successful farm school: a case study
- Nongauza, Anthony Davidson Mbulelo
- Authors: Nongauza, Anthony Davidson Mbulelo
- Date: 2005
- Subjects: School principals -- South Africa -- Case studies School management and organization -- South Africa -- Case studies Rural schools -- South Africa -- Case studies Education, Rural -- South Africa -- Case studies School supervision, Rural -- South Africa -- Case studies Rural schools -- South Africa -- Administration of -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1747 , http://hdl.handle.net/10962/d1003631
- Description: This study looks at the various actions by the principal of a farm school in running an academically successful school. The study exposes the difficulties faced by farm schools and looks at how the principal confronts these difficulties and turn some of these into success stories. In trying to understand the role of the principal this study uses school effectiveness literature as a source and reference in an attempt to understand the actions adopted by the principal to make this farm school successful. The study uses the interpretive orientation as the methodology for investigating the principal’s role. This is in line with my attempt at explaining the perceptions, views and experiences of the people who are working closely with the principal. I have done this by employing semi-structured interviews and participant observation. The information gathered from the respondents helped in the development of the role of the principal which in this case, is the expressed views of the respondents. The investigation is conducted as a case study and the handling of the information provided by the respondents is in line with case study methods. The study has revealed that actions of the leader have an influence on the organizational success. The way in which the leader of Rocklands farm School conducts herself and the vision she shares with the people within the organization go a long way towards the improvement of organizational structures and their functioning. In this case the principal has been noted as particularly transformational, charismatic, instructional and transactional in her approaches to school administration and that her dedication to the cause of learners from disadvantaged background is reflected in her sacrificial actions. The study has also found that the principal is considered to be fairly autocratic in her leadership, which is a departure from current leadership thinking. The study has also shown that socio-economic disadvantages do not necessarily inhibit the school from performing beyond expectation. With good guidance from the leader and trust among staff members the farm school has been able to overcome some socio-economic pressures to emerge successful in the academic field. The fact that the principal of this school is a woman has not changed the overall findings that leadership qualities for successful schooling are universal and do not necessarily depend on the gender of the leader. This study suggests that leaders have a potential to turn poor situations in schools around and that leaders should as a matter of course ensure that they understand the organizational dynamics within their schools. They should be in the forefront as agents of change being mindful that those within the school understand and share the vision the leader has. The study also suggests that the human element in the educational processes in schools is of critical importance than the conditions in which schools find themselves.
- Full Text:
- Date Issued: 2005
- Authors: Nongauza, Anthony Davidson Mbulelo
- Date: 2005
- Subjects: School principals -- South Africa -- Case studies School management and organization -- South Africa -- Case studies Rural schools -- South Africa -- Case studies Education, Rural -- South Africa -- Case studies School supervision, Rural -- South Africa -- Case studies Rural schools -- South Africa -- Administration of -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1747 , http://hdl.handle.net/10962/d1003631
- Description: This study looks at the various actions by the principal of a farm school in running an academically successful school. The study exposes the difficulties faced by farm schools and looks at how the principal confronts these difficulties and turn some of these into success stories. In trying to understand the role of the principal this study uses school effectiveness literature as a source and reference in an attempt to understand the actions adopted by the principal to make this farm school successful. The study uses the interpretive orientation as the methodology for investigating the principal’s role. This is in line with my attempt at explaining the perceptions, views and experiences of the people who are working closely with the principal. I have done this by employing semi-structured interviews and participant observation. The information gathered from the respondents helped in the development of the role of the principal which in this case, is the expressed views of the respondents. The investigation is conducted as a case study and the handling of the information provided by the respondents is in line with case study methods. The study has revealed that actions of the leader have an influence on the organizational success. The way in which the leader of Rocklands farm School conducts herself and the vision she shares with the people within the organization go a long way towards the improvement of organizational structures and their functioning. In this case the principal has been noted as particularly transformational, charismatic, instructional and transactional in her approaches to school administration and that her dedication to the cause of learners from disadvantaged background is reflected in her sacrificial actions. The study has also found that the principal is considered to be fairly autocratic in her leadership, which is a departure from current leadership thinking. The study has also shown that socio-economic disadvantages do not necessarily inhibit the school from performing beyond expectation. With good guidance from the leader and trust among staff members the farm school has been able to overcome some socio-economic pressures to emerge successful in the academic field. The fact that the principal of this school is a woman has not changed the overall findings that leadership qualities for successful schooling are universal and do not necessarily depend on the gender of the leader. This study suggests that leaders have a potential to turn poor situations in schools around and that leaders should as a matter of course ensure that they understand the organizational dynamics within their schools. They should be in the forefront as agents of change being mindful that those within the school understand and share the vision the leader has. The study also suggests that the human element in the educational processes in schools is of critical importance than the conditions in which schools find themselves.
- Full Text:
- Date Issued: 2005
The role of acute toxicity data for South African freshwater macroinvertebrates in the derivation of water quality guidelines for salinity
- Authors: Browne, Samantha
- Date: 2005
- Subjects: Water-supply -- South Africa , Water quality management -- South Africa , Aquatic ecology -- South Africa , Ecosystem management -- South Africa , Freshwater invertebrates -- South Africa -- Ecology , Water -- Toxicology -- South Africa , Water quality biological assessment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4742 , http://hdl.handle.net/10962/d1006173 , Water-supply -- South Africa , Water quality management -- South Africa , Aquatic ecology -- South Africa , Ecosystem management -- South Africa , Freshwater invertebrates -- South Africa -- Ecology , Water -- Toxicology -- South Africa , Water quality biological assessment
- Description: Water resources are under ever-increasing pressure to meet the demands of various water users both nationally and internationally. The process of anthropogenically-induced salinisation serves to exacerbate this pressure by limiting the quantity and quality of water available for future use. Water quality guidelines provide the numerical goals which water resource managers can use to adequately manage and protect aquatic ecosystems. Various methods which have been developed and used internationally to derive such guidelines are discussed. Acute toxicity tests were conducted using two inorganic salts, NaCl and Na₂SO₄. Field collected, indigenous, freshwater macroinvertebrates were used as tests organisms. Data generated from these tests contributed to the expansion of the currently limited toxicological database of response data for indigenous organisms and the suitability of using such organisms for future testing was discussed. Salt sensitivities of indigenous freshwater invertebrates were compared those of species sourced from an international toxicological database and were found to have similar ranges of tolerances to NaCl and Na₂SO₄. Species sensitivity distributions (SSDs), a method of data extrapolation, were derived using different types of toxicological data, and hence different guideline values or protective concentrations were derived. These concentrations were equated to boundary values for South Africa’s ecological Reserve categories, which are used to describe degrees of health for aquatic ecosystems. Provisional results suggest that using only acute toxicity data in guideline derivation provides ecosystem protection that is under-protective. Chronic toxicity data, which include endpoints other than mortality, provide the most realistic environmental protection but lack data confidence due to small sample sizes (acute tests are more readily conducted than chronic tests). The potential contribution of sub-chronic data to guideline derivation is highlighted as these data are more readily extrapolated to chronic endpoints than acute data and sub-chronic tests are not as complex and demanding to conduct as chronic tests.
- Full Text:
- Date Issued: 2005
- Authors: Browne, Samantha
- Date: 2005
- Subjects: Water-supply -- South Africa , Water quality management -- South Africa , Aquatic ecology -- South Africa , Ecosystem management -- South Africa , Freshwater invertebrates -- South Africa -- Ecology , Water -- Toxicology -- South Africa , Water quality biological assessment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4742 , http://hdl.handle.net/10962/d1006173 , Water-supply -- South Africa , Water quality management -- South Africa , Aquatic ecology -- South Africa , Ecosystem management -- South Africa , Freshwater invertebrates -- South Africa -- Ecology , Water -- Toxicology -- South Africa , Water quality biological assessment
- Description: Water resources are under ever-increasing pressure to meet the demands of various water users both nationally and internationally. The process of anthropogenically-induced salinisation serves to exacerbate this pressure by limiting the quantity and quality of water available for future use. Water quality guidelines provide the numerical goals which water resource managers can use to adequately manage and protect aquatic ecosystems. Various methods which have been developed and used internationally to derive such guidelines are discussed. Acute toxicity tests were conducted using two inorganic salts, NaCl and Na₂SO₄. Field collected, indigenous, freshwater macroinvertebrates were used as tests organisms. Data generated from these tests contributed to the expansion of the currently limited toxicological database of response data for indigenous organisms and the suitability of using such organisms for future testing was discussed. Salt sensitivities of indigenous freshwater invertebrates were compared those of species sourced from an international toxicological database and were found to have similar ranges of tolerances to NaCl and Na₂SO₄. Species sensitivity distributions (SSDs), a method of data extrapolation, were derived using different types of toxicological data, and hence different guideline values or protective concentrations were derived. These concentrations were equated to boundary values for South Africa’s ecological Reserve categories, which are used to describe degrees of health for aquatic ecosystems. Provisional results suggest that using only acute toxicity data in guideline derivation provides ecosystem protection that is under-protective. Chronic toxicity data, which include endpoints other than mortality, provide the most realistic environmental protection but lack data confidence due to small sample sizes (acute tests are more readily conducted than chronic tests). The potential contribution of sub-chronic data to guideline derivation is highlighted as these data are more readily extrapolated to chronic endpoints than acute data and sub-chronic tests are not as complex and demanding to conduct as chronic tests.
- Full Text:
- Date Issued: 2005
The role of anthropogenic disturbance in the creation of a socio-ecological landscape
- Authors: Fox, Helen Elizabeth
- Date: 2005
- Subjects: Human ecology -- South Africa -- Kat River Valley , Land use -- Environmental aspects-- South Africa -- Kat River Valley , Landscapes -- Social aspects -- South Africa -- Kat River Valley , Landscape ecology -- South Africa -- Kat River Valley , Vegetation and climate -- South Africa -- Kat River Valley , Xhosa (African people) -- Folklore , Kat River Valley (South Africa)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4772 , http://hdl.handle.net/10962/d1008061 , Human ecology -- South Africa -- Kat River Valley , Land use -- Environmental aspects-- South Africa -- Kat River Valley , Landscapes -- Social aspects -- South Africa -- Kat River Valley , Landscape ecology -- South Africa -- Kat River Valley , Vegetation and climate -- South Africa -- Kat River Valley , Xhosa (African people) -- Folklore , Kat River Valley (South Africa)
- Description: The aim of this thesis is to examine the role of anthropogenic disturbance in the creation of a socio-ecological landscape. Three key questions were answered: what impact has past anthropogenic disturbance had on present vegetative characteristics; what value did this disturbed landscape have to local people; how did the local peoples' worldviews and eco-cosmologies influence how they perceived, valued and managed their landscape? Research was based in a rural, predominantly amaXhosa village in the Kat River valley, Eastern Cape, South Africa. Four major landscape components characterised the environment, namely dense forests, former grazing lands, abandoned fields and old settlements. A combination of qualitative and quantitative methods were adopted, consisting of a vegetation and soil survey and social science methods including semistructured interviews, focus groups, transect walks and participant observation. The key finding was that anthropogenic disturbance is necessary to enhance the potential of the area to support human habitation. However, anthropogenic disturbance can have positive or negative effects for both local people and the environment. An intermediate level of disturbance is a key factor leading to a resilient socio-ecological system. Various anthropogenic disturbances have had significant affects on vegetation characteristics in terms of species richness, and a change in vegetation composition and species heights. Of the three anthropogenic landscapes examined, former grazing lands were the least intensively disturbed. They were also more species rich and structurally diverse than areas that were under agricultural production or used as a settlement. Dense forests, although the least desirable landscape to local people were, together with sacred pools, sources of ecosystem renewal and played a critical role during times of disturbance. Anthropogenic disturbance has added value to local people's livelihoods; this disturbance has resulted in a patchy landscape that supplies a wide variety of resources to local people. Local people are dependent on their environment for their basic needs; this has encouraged sustainable management practices. The local AmaXhosa still retain many elements of their traditional worldview, which has many characteristics of Animism. The environment is an integral component of their belief system and certain sites and species have significant cultural value and are protected.
- Full Text:
- Date Issued: 2005
- Authors: Fox, Helen Elizabeth
- Date: 2005
- Subjects: Human ecology -- South Africa -- Kat River Valley , Land use -- Environmental aspects-- South Africa -- Kat River Valley , Landscapes -- Social aspects -- South Africa -- Kat River Valley , Landscape ecology -- South Africa -- Kat River Valley , Vegetation and climate -- South Africa -- Kat River Valley , Xhosa (African people) -- Folklore , Kat River Valley (South Africa)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4772 , http://hdl.handle.net/10962/d1008061 , Human ecology -- South Africa -- Kat River Valley , Land use -- Environmental aspects-- South Africa -- Kat River Valley , Landscapes -- Social aspects -- South Africa -- Kat River Valley , Landscape ecology -- South Africa -- Kat River Valley , Vegetation and climate -- South Africa -- Kat River Valley , Xhosa (African people) -- Folklore , Kat River Valley (South Africa)
- Description: The aim of this thesis is to examine the role of anthropogenic disturbance in the creation of a socio-ecological landscape. Three key questions were answered: what impact has past anthropogenic disturbance had on present vegetative characteristics; what value did this disturbed landscape have to local people; how did the local peoples' worldviews and eco-cosmologies influence how they perceived, valued and managed their landscape? Research was based in a rural, predominantly amaXhosa village in the Kat River valley, Eastern Cape, South Africa. Four major landscape components characterised the environment, namely dense forests, former grazing lands, abandoned fields and old settlements. A combination of qualitative and quantitative methods were adopted, consisting of a vegetation and soil survey and social science methods including semistructured interviews, focus groups, transect walks and participant observation. The key finding was that anthropogenic disturbance is necessary to enhance the potential of the area to support human habitation. However, anthropogenic disturbance can have positive or negative effects for both local people and the environment. An intermediate level of disturbance is a key factor leading to a resilient socio-ecological system. Various anthropogenic disturbances have had significant affects on vegetation characteristics in terms of species richness, and a change in vegetation composition and species heights. Of the three anthropogenic landscapes examined, former grazing lands were the least intensively disturbed. They were also more species rich and structurally diverse than areas that were under agricultural production or used as a settlement. Dense forests, although the least desirable landscape to local people were, together with sacred pools, sources of ecosystem renewal and played a critical role during times of disturbance. Anthropogenic disturbance has added value to local people's livelihoods; this disturbance has resulted in a patchy landscape that supplies a wide variety of resources to local people. Local people are dependent on their environment for their basic needs; this has encouraged sustainable management practices. The local AmaXhosa still retain many elements of their traditional worldview, which has many characteristics of Animism. The environment is an integral component of their belief system and certain sites and species have significant cultural value and are protected.
- Full Text:
- Date Issued: 2005
The role of communication in the management and leadership of a secondary school in Namibia
- Authors: Kaura, Unjee M
- Date: 2005
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1862 , http://hdl.handle.net/10962/d1004559
- Description: Communication is a complex phenomenon, widely regarded as the lifeblood of every organisation, and ironically one of the least researched areas, at least in the field of leadership and management in an educational context. The paucity of literature in this field is evidence of this. This study is an attempt to explore and gain understanding of teachers' experiences and perceptions of the role and functions of communication within an educational organisation, in this case a secondary school in Namibia. The study is an interpretive case study, and employed questionnaires and interviews to gather data from selected participants at the site of research. The findings of the study highlight the dual role of communication as a functioning mechanism as well as a social or binding factor. The role of communication emerges as an essential element in the democratic functioning of the school. It is through communication that democratic practice is achieved as a vehicle for involvement in decision-making, sharing, teamwork, and as a medium for leadership leading to empowerment, human development and organisational development, bringing about change through the sharing of vision. Both formal and informal communication are shown to be functional to the institution. Some of the challenges that have emerged are the dangers of careless and malicious 'badmouthing' in informal communication, the persistence of some degree of top-down communication, and the challenges of communication in multi-cultural settings. The study highlights the need for strategies to improve communication, such as workshops on interpersonal communication.
- Full Text:
- Date Issued: 2005
- Authors: Kaura, Unjee M
- Date: 2005
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1862 , http://hdl.handle.net/10962/d1004559
- Description: Communication is a complex phenomenon, widely regarded as the lifeblood of every organisation, and ironically one of the least researched areas, at least in the field of leadership and management in an educational context. The paucity of literature in this field is evidence of this. This study is an attempt to explore and gain understanding of teachers' experiences and perceptions of the role and functions of communication within an educational organisation, in this case a secondary school in Namibia. The study is an interpretive case study, and employed questionnaires and interviews to gather data from selected participants at the site of research. The findings of the study highlight the dual role of communication as a functioning mechanism as well as a social or binding factor. The role of communication emerges as an essential element in the democratic functioning of the school. It is through communication that democratic practice is achieved as a vehicle for involvement in decision-making, sharing, teamwork, and as a medium for leadership leading to empowerment, human development and organisational development, bringing about change through the sharing of vision. Both formal and informal communication are shown to be functional to the institution. Some of the challenges that have emerged are the dangers of careless and malicious 'badmouthing' in informal communication, the persistence of some degree of top-down communication, and the challenges of communication in multi-cultural settings. The study highlights the need for strategies to improve communication, such as workshops on interpersonal communication.
- Full Text:
- Date Issued: 2005
The role of parallel computing in bioinformatics
- Authors: Akhurst, Timothy John
- Date: 2005
- Subjects: Bioinformatics , Parallel programming (Computer science) , LINDA (Computer system) , Java (Computer program language) , Parallel processing (Electronic computers) , Genomics -- Data processing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3986 , http://hdl.handle.net/10962/d1004045 , Bioinformatics , Parallel programming (Computer science) , LINDA (Computer system) , Java (Computer program language) , Parallel processing (Electronic computers) , Genomics -- Data processing
- Description: The need to intelligibly capture, manage and analyse the ever-increasing amount of publicly available genomic data is one of the challenges facing bioinformaticians today. Such analyses are in fact impractical using uniprocessor machines, which has led to an increasing reliance on clusters of commodity-priced computers. An existing network of cheap, commodity PCs was utilised as a single computational resource for parallel computing. The performance of the cluster was investigated using a whole genome-scanning program written in the Java programming language. The TSpaces framework, based on the Linda parallel programming model, was used to parallelise the application. Maximum speedup was achieved at between 30 and 50 processors, depending on the size of the genome being scanned. Together with this, the associated significant reductions in wall-clock time suggest that both parallel computing and Java have a significant role to play in the field of bioinformatics.
- Full Text:
- Date Issued: 2005
- Authors: Akhurst, Timothy John
- Date: 2005
- Subjects: Bioinformatics , Parallel programming (Computer science) , LINDA (Computer system) , Java (Computer program language) , Parallel processing (Electronic computers) , Genomics -- Data processing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3986 , http://hdl.handle.net/10962/d1004045 , Bioinformatics , Parallel programming (Computer science) , LINDA (Computer system) , Java (Computer program language) , Parallel processing (Electronic computers) , Genomics -- Data processing
- Description: The need to intelligibly capture, manage and analyse the ever-increasing amount of publicly available genomic data is one of the challenges facing bioinformaticians today. Such analyses are in fact impractical using uniprocessor machines, which has led to an increasing reliance on clusters of commodity-priced computers. An existing network of cheap, commodity PCs was utilised as a single computational resource for parallel computing. The performance of the cluster was investigated using a whole genome-scanning program written in the Java programming language. The TSpaces framework, based on the Linda parallel programming model, was used to parallelise the application. Maximum speedup was achieved at between 30 and 50 processors, depending on the size of the genome being scanned. Together with this, the associated significant reductions in wall-clock time suggest that both parallel computing and Java have a significant role to play in the field of bioinformatics.
- Full Text:
- Date Issued: 2005
The role of principals in the induction of new educators in their schools
- Authors: Mfenqe, Phyllis Phindiwe
- Date: 2005
- Subjects: School principals -- South Africa , Teachers -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9490 , http://hdl.handle.net/10948/385 , School principals -- South Africa , Teachers -- South Africa
- Description: This study focuses on the role of the induction programme for teachers who are new to a specific school. The main aim of undertaking this research study is to investigate the role played by principals in the induction of new educators in their schools. The main questions the study addresses are: · Why is it necessary for new educators to be inducted · How could mentoring play a role in an induction programme? · What should the role of the principals be in the induction process? · What should the induction programme include and how should it be implemented? The study highlights the problems new teachers experience with respect to aspects such as classroom control and imparting information. It also emphasizes the role of the principal and the mentor in assisting new educators with these issues. The qualitative approach was used to collect data. Data were collected through interviews and observations. The main findings were that new educators experienced problems with classroom control, discipline and that principals should help them with adjustment in the school by allocating a mentor teacher for support.
- Full Text:
- Date Issued: 2005
- Authors: Mfenqe, Phyllis Phindiwe
- Date: 2005
- Subjects: School principals -- South Africa , Teachers -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9490 , http://hdl.handle.net/10948/385 , School principals -- South Africa , Teachers -- South Africa
- Description: This study focuses on the role of the induction programme for teachers who are new to a specific school. The main aim of undertaking this research study is to investigate the role played by principals in the induction of new educators in their schools. The main questions the study addresses are: · Why is it necessary for new educators to be inducted · How could mentoring play a role in an induction programme? · What should the role of the principals be in the induction process? · What should the induction programme include and how should it be implemented? The study highlights the problems new teachers experience with respect to aspects such as classroom control and imparting information. It also emphasizes the role of the principal and the mentor in assisting new educators with these issues. The qualitative approach was used to collect data. Data were collected through interviews and observations. The main findings were that new educators experienced problems with classroom control, discipline and that principals should help them with adjustment in the school by allocating a mentor teacher for support.
- Full Text:
- Date Issued: 2005
The role of traditional leadership institutions in the development of their communities with specific reference to the Rharhabe kingdom, Mngqesha Great Place, King William's Town
- Mahlangeni, Bethwell Mzikalanga
- Authors: Mahlangeni, Bethwell Mzikalanga
- Date: 2005
- Subjects: Public administration -- South Africa -- Eastern Cape , Tribal government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8169 , http://hdl.handle.net/10948/395 , Public administration -- South Africa -- Eastern Cape , Tribal government -- South Africa -- Eastern Cape
- Description: It is the objective of this treatise to highlight and demonstrate the role that can be played by Traditional Leadership Institutions in the development of their communities, demonstrate and advance the extent to which they can enhance their image and restore their dignity by embarking on community development projects that will improve the quality of life of their subjects in their jurisdictional areas. However, as the number of Traditional Leadership Institutions that can be investigated and researched was so large, it became necessary to focus attention primarily on the Rharhabe Kingdom with its seat and headquarters at Mngqesha Great Place in King William’s Town. The Mngqesha Great Place, the seat of the Rharhabe Kingdom is a typical example of a Traditional Leadership Institution selected from the six existing Eastern Cape Provincial Kingdoms. Attention is invited to the following fields which had to be explored since they serve the basis for the evolution of Traditional Leadership Institutions in South Africa. A historical background to Traditional Leadership and Governance in South Africa and the Eastern Cape provides some key issues of governance, management and administration, position, place and status of the institution during the pre- colonial and colonial periods, the period under apartheid rule, the independence period of the former homelands of Ciskei and Transkei territories with reflections on Tribal and Regional Authorities and Local Government Bureaux. A synoptic perspective of the effect of changes on the functioning of the Institution of Traditional Leadership is provided in some detail. This part is concluded with a brief history of the Rharhabe Kingdom. An overview of Traditional Leadership and Governance in the new South Africa since 1994 to date indicates the recognition and important role that Traditional Leadership Institutions can play. In this regard, there is policy and legislation that is in place on Traditional Leadership and Governance with a clear vision for implementation. Since 1994, there are many initiatives that have been undertaken by government in creating and maintaining an enabling environment for the efficient management and administration of the institution, transfer payments for different projects like funding the building of various Great Places and Provincial Policy Initiatives on Traditional Leadership and Governance. Institutional arrangements for Traditional Leadership Institutions reflect on the hierarchy of Traditional Leadership, for example, the position of the King as head of a Regional Authority (Ikomkhulu), the Chiefs under Kings as Heads of Traditional Authorities (Inqila) and Headmen as heads of the various Administrative Areas (locations). In order to give meaning to Government’s recognition of the Institution of Traditional Leadership, to enhance the institution and give it a role at the National, Provincial and Local levels, the government has established a National and Provincial Houses of Traditional Leaders with clear roles and responsibilities and provision for accountability of Traditional Leaders and structures. Regarding the role of Traditional Leadership Institutions in Governance and Development, it is clear that over many years, these institutions performed various governance functions. The policy framework on Traditional Leadership and Governance besides legislation specifies the duties and functions of these entities. With regard to the King Sandile Development Trust and its role in community development, the research reveals visionary leadership on the part of the Kingdom, with the Trust, since its establishment in 1999 being at the centre of all development initiatives at the Great Place besides government initiatives. The King Sandile Development Trust is therefore a legal entity established and funded in terms of law. It has its constitution, vision and clear objectives, procedural arrangements on administration, management and financial arrangements. The development role of the trust is reflected in the Queen’s Programme of Action and Implementation, headed by the Queen mother, Queen Noloyiso Sandile, the wife of His Majesty King Maxhobayakhawuleza Sandile. Besides, there are established tourism chalets providing not only revenue but also employment opportunities to many local subjects of the Kingdom. Finally, the treatise concludes with some general conclusion and recommendations and challenges that demand that traditional leaders be appropriately trained, its institutions adequately resourced, appropriately run and administered based on the need to account publicly on their performance.
- Full Text:
- Date Issued: 2005
- Authors: Mahlangeni, Bethwell Mzikalanga
- Date: 2005
- Subjects: Public administration -- South Africa -- Eastern Cape , Tribal government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8169 , http://hdl.handle.net/10948/395 , Public administration -- South Africa -- Eastern Cape , Tribal government -- South Africa -- Eastern Cape
- Description: It is the objective of this treatise to highlight and demonstrate the role that can be played by Traditional Leadership Institutions in the development of their communities, demonstrate and advance the extent to which they can enhance their image and restore their dignity by embarking on community development projects that will improve the quality of life of their subjects in their jurisdictional areas. However, as the number of Traditional Leadership Institutions that can be investigated and researched was so large, it became necessary to focus attention primarily on the Rharhabe Kingdom with its seat and headquarters at Mngqesha Great Place in King William’s Town. The Mngqesha Great Place, the seat of the Rharhabe Kingdom is a typical example of a Traditional Leadership Institution selected from the six existing Eastern Cape Provincial Kingdoms. Attention is invited to the following fields which had to be explored since they serve the basis for the evolution of Traditional Leadership Institutions in South Africa. A historical background to Traditional Leadership and Governance in South Africa and the Eastern Cape provides some key issues of governance, management and administration, position, place and status of the institution during the pre- colonial and colonial periods, the period under apartheid rule, the independence period of the former homelands of Ciskei and Transkei territories with reflections on Tribal and Regional Authorities and Local Government Bureaux. A synoptic perspective of the effect of changes on the functioning of the Institution of Traditional Leadership is provided in some detail. This part is concluded with a brief history of the Rharhabe Kingdom. An overview of Traditional Leadership and Governance in the new South Africa since 1994 to date indicates the recognition and important role that Traditional Leadership Institutions can play. In this regard, there is policy and legislation that is in place on Traditional Leadership and Governance with a clear vision for implementation. Since 1994, there are many initiatives that have been undertaken by government in creating and maintaining an enabling environment for the efficient management and administration of the institution, transfer payments for different projects like funding the building of various Great Places and Provincial Policy Initiatives on Traditional Leadership and Governance. Institutional arrangements for Traditional Leadership Institutions reflect on the hierarchy of Traditional Leadership, for example, the position of the King as head of a Regional Authority (Ikomkhulu), the Chiefs under Kings as Heads of Traditional Authorities (Inqila) and Headmen as heads of the various Administrative Areas (locations). In order to give meaning to Government’s recognition of the Institution of Traditional Leadership, to enhance the institution and give it a role at the National, Provincial and Local levels, the government has established a National and Provincial Houses of Traditional Leaders with clear roles and responsibilities and provision for accountability of Traditional Leaders and structures. Regarding the role of Traditional Leadership Institutions in Governance and Development, it is clear that over many years, these institutions performed various governance functions. The policy framework on Traditional Leadership and Governance besides legislation specifies the duties and functions of these entities. With regard to the King Sandile Development Trust and its role in community development, the research reveals visionary leadership on the part of the Kingdom, with the Trust, since its establishment in 1999 being at the centre of all development initiatives at the Great Place besides government initiatives. The King Sandile Development Trust is therefore a legal entity established and funded in terms of law. It has its constitution, vision and clear objectives, procedural arrangements on administration, management and financial arrangements. The development role of the trust is reflected in the Queen’s Programme of Action and Implementation, headed by the Queen mother, Queen Noloyiso Sandile, the wife of His Majesty King Maxhobayakhawuleza Sandile. Besides, there are established tourism chalets providing not only revenue but also employment opportunities to many local subjects of the Kingdom. Finally, the treatise concludes with some general conclusion and recommendations and challenges that demand that traditional leaders be appropriately trained, its institutions adequately resourced, appropriately run and administered based on the need to account publicly on their performance.
- Full Text:
- Date Issued: 2005
The rural-urban interface: the ambiguous nature of informal settlements, with special reference to the Daggafontein settlement in Gauteng
- Authors: Kumalo, Sibongiseni
- Date: 2005
- Subjects: Cities and towns -- South Africa -- Gauteng -- Growth , Squatter settlements -- South Africa -- Gauteng , Urban anthropology -- South Africa -- Gauteng , Rural-urban migration -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2091 , http://hdl.handle.net/10962/d1002654 , Cities and towns -- South Africa -- Gauteng -- Growth , Squatter settlements -- South Africa -- Gauteng , Urban anthropology -- South Africa -- Gauteng , Rural-urban migration -- South Africa
- Description: The thesis is concerned with the rural-urban interface. It questions and argues against the validity of what used to be called the rural-urban divide, and presents the rural-urban interface as a single social field. The research makes use of Daggafontein informal settlement in Gauteng, providing a general socio-economic overview of this settlement by discussing the ways in which people in this settlement make a living. Most of the people come from rural areas and the patterns of their association within the settlement reveal that they associate themselves with people from their own rural homes of origin. Movement between Daggafontein and rural areas show some level of commitment to home areas. Perceptions of the urban-rural interface by people of Daggafontein informal settlement show that these two areas are not necessarily separate from each other, but are part of the same continuum as socio-economic relations continue to straddle the rural and the urban. As people, perceptions and values move in both directions along the rural-urban interface, the classification of the informal settlement becomes highly ambiguous, because it contains both rural and urban elements.
- Full Text:
- Date Issued: 2005
- Authors: Kumalo, Sibongiseni
- Date: 2005
- Subjects: Cities and towns -- South Africa -- Gauteng -- Growth , Squatter settlements -- South Africa -- Gauteng , Urban anthropology -- South Africa -- Gauteng , Rural-urban migration -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2091 , http://hdl.handle.net/10962/d1002654 , Cities and towns -- South Africa -- Gauteng -- Growth , Squatter settlements -- South Africa -- Gauteng , Urban anthropology -- South Africa -- Gauteng , Rural-urban migration -- South Africa
- Description: The thesis is concerned with the rural-urban interface. It questions and argues against the validity of what used to be called the rural-urban divide, and presents the rural-urban interface as a single social field. The research makes use of Daggafontein informal settlement in Gauteng, providing a general socio-economic overview of this settlement by discussing the ways in which people in this settlement make a living. Most of the people come from rural areas and the patterns of their association within the settlement reveal that they associate themselves with people from their own rural homes of origin. Movement between Daggafontein and rural areas show some level of commitment to home areas. Perceptions of the urban-rural interface by people of Daggafontein informal settlement show that these two areas are not necessarily separate from each other, but are part of the same continuum as socio-economic relations continue to straddle the rural and the urban. As people, perceptions and values move in both directions along the rural-urban interface, the classification of the informal settlement becomes highly ambiguous, because it contains both rural and urban elements.
- Full Text:
- Date Issued: 2005
The safety of journalists: an assessment of perceptions of the origins and implementation of policy at two international television news agencies
- Authors: Venter, Sahm
- Date: 2005
- Subjects: Reuters Television , Associated Press Television News , Journalism -- Safety measures , Journalists -- Protection , News agencies -- Safety measures
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3491 , http://hdl.handle.net/10962/d1002946 , Reuters Television , Associated Press Television News , Journalism -- Safety measures , Journalists -- Protection , News agencies -- Safety measures
- Description: Being a journalist today can be a deadly pursuit, particularly for those covering conflict and other dangerous assignments. In 2004 more journalists and other media workers were killed than in the last ten years. While it is impossible to guarantee that journalists will not be killed or injured, kidnapped or detained, a policy has been created to help protect them in the course of their duties. This study examines the perceptions of journalists working for two international television news agencies about this safety policy called the ‘Joint code of practice for journalists working in conflict zones’. This policy was adopted in November 2000 by five major television companies including the television news agencies Reuters Television and Associated Press Television News. This study finds that the policy had significant flaws in how it was formulated and how it is communicated, implemented and reviewed. Recognising the existence of unequal relations of power and conflicting interests at play in any policy process, this study stresses that in the case of the journalist safety policy, all stakeholders should have participated in the relevant policy stages. This argument arises from researching the policy document as well as from the point of view of managers, and particularly journalists who work on dangerous assignments, either full-time or on a freelance basis for either of the two television news agencies. It finds that while journalists are not generally aware of the policy, they do practice many of its elements as well as a range of their own custom-made strategies to protect themselves. The result is to make the policy less effective than it could be.
- Full Text:
- Date Issued: 2005
- Authors: Venter, Sahm
- Date: 2005
- Subjects: Reuters Television , Associated Press Television News , Journalism -- Safety measures , Journalists -- Protection , News agencies -- Safety measures
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3491 , http://hdl.handle.net/10962/d1002946 , Reuters Television , Associated Press Television News , Journalism -- Safety measures , Journalists -- Protection , News agencies -- Safety measures
- Description: Being a journalist today can be a deadly pursuit, particularly for those covering conflict and other dangerous assignments. In 2004 more journalists and other media workers were killed than in the last ten years. While it is impossible to guarantee that journalists will not be killed or injured, kidnapped or detained, a policy has been created to help protect them in the course of their duties. This study examines the perceptions of journalists working for two international television news agencies about this safety policy called the ‘Joint code of practice for journalists working in conflict zones’. This policy was adopted in November 2000 by five major television companies including the television news agencies Reuters Television and Associated Press Television News. This study finds that the policy had significant flaws in how it was formulated and how it is communicated, implemented and reviewed. Recognising the existence of unequal relations of power and conflicting interests at play in any policy process, this study stresses that in the case of the journalist safety policy, all stakeholders should have participated in the relevant policy stages. This argument arises from researching the policy document as well as from the point of view of managers, and particularly journalists who work on dangerous assignments, either full-time or on a freelance basis for either of the two television news agencies. It finds that while journalists are not generally aware of the policy, they do practice many of its elements as well as a range of their own custom-made strategies to protect themselves. The result is to make the policy less effective than it could be.
- Full Text:
- Date Issued: 2005
The status and natural history of pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales off Southern Africa
- Authors: Plön, Stephanie
- Date: 2005
- Subjects: Pygmy sperm whale Dwarf sperm whale Population genetics
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5772 , http://hdl.handle.net/10962/d1005460
- Description: For the present study 106 strandings of Kogia breviceps and 85 strandings of K. sima along the South African coastline between 1880 and 1995 were analysed in order to examine the age and growth, male and female reproduction, diet, stranding patterns, and population genetic structure of both species. Length and weight at birth were about 120cm and 53kg for K. breviceps and about 103cm and 14kg for K. sima. Von Bertalanffy growth curves were fitted to the data and indicated that physical maturity was reached at around 15 years in both sexes of K. breviceps and at 13 years in female and 15 years in male K. sima. Asymptotic length was reached at 306.0 and 286.1cm in female and male K. breviceps and 249.14 and 263.75cm in female and male K. sima, respectively. Maximum ages were16 years for male K. breviceps and 23 years for females and 17 years for male K. sima and 22 years for females. Reversed sexual size dimorphism was suggested for K. breviceps, while in K. sima males were larger than females. Attainment of sexual maturity in males occurred at between 2.5 and 5 years of age in K. breviceps and 2.6 and 3 years in K. sima, corresponding to 241-242cm and 197cm body length, respectively. The maximum combined testis weight comprised 1.04% and 2.00% for K. breviceps and K. sima, respectively, and a polygynous mating system with a roving male strategy was proposed for both species. The sperm morphology for both Kogia species was described and is characterised by 20-25 spherical mitochondria arranged in rows around the midpiece. Attainment of sexual maturity in females occurred at 5 years in both Kogia species, and at 262cm and 215cm body length in K. breviceps and K. sima, respectively. The ovulation rates were 0.9 and 0.7 per year for K. breviceps and K. sima, respectively. In K. breviceps conceptions occurred from April to September and births from March to August, while in K. sima both conceptions and births occurred from December to March. Annual reproduction and a post-partum oestrus was suggested for both Kogia species. The diet of K. breviceps comprised 50 different cephalopod species from 22 families and 17 other prey species, while K. sima fed on 32 cephalopod species from 17 families and six others. Although niche overlap indices between the two species and between groups within each species were high, some differences in diet could be determined, which allow these two sympatrically occurring species to share the same ecological niche off the coast of Southern Africa. An analysis of the stranding patterns revealed that K. sima has a closer affinity to the Agulhas current and to higher water temperatures than K. breviceps, which is supported by differences in the size of the appendages between the two species. The population genetic analysis revealed a high haplotype and nucleotide diversity for K. breviceps in the Southern hemisphere, but a lack of significant phylogeographic structure, indicating substantial gene flow among populations and inhibiting genetic differentiation of local populations, although the South African population was somewhat isolated from others in the Southern Hemisphere. In contrast the data on the phylogeographic structure of K. sima were somewhat restrictive as the majority of the samples originated from South Africa. Nevertheless, both nucleotide and haplotype diversities were markedly lower than in K. breviceps and more similar to those for other small cetacean populations, suggesting a smaller population size for K. sima than for K. breviceps. Although both Kogia species belong to the medium to larger-sized odontocetes their life histories are located near the fast end of the slow-fast continuum of life histories of marine mammals, indicating high mortality rates. The “false-gill” marking and the ability to squirt ink are thought to reflect adaptations to predator mimicry and avoidance.
- Full Text:
- Date Issued: 2005
- Authors: Plön, Stephanie
- Date: 2005
- Subjects: Pygmy sperm whale Dwarf sperm whale Population genetics
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5772 , http://hdl.handle.net/10962/d1005460
- Description: For the present study 106 strandings of Kogia breviceps and 85 strandings of K. sima along the South African coastline between 1880 and 1995 were analysed in order to examine the age and growth, male and female reproduction, diet, stranding patterns, and population genetic structure of both species. Length and weight at birth were about 120cm and 53kg for K. breviceps and about 103cm and 14kg for K. sima. Von Bertalanffy growth curves were fitted to the data and indicated that physical maturity was reached at around 15 years in both sexes of K. breviceps and at 13 years in female and 15 years in male K. sima. Asymptotic length was reached at 306.0 and 286.1cm in female and male K. breviceps and 249.14 and 263.75cm in female and male K. sima, respectively. Maximum ages were16 years for male K. breviceps and 23 years for females and 17 years for male K. sima and 22 years for females. Reversed sexual size dimorphism was suggested for K. breviceps, while in K. sima males were larger than females. Attainment of sexual maturity in males occurred at between 2.5 and 5 years of age in K. breviceps and 2.6 and 3 years in K. sima, corresponding to 241-242cm and 197cm body length, respectively. The maximum combined testis weight comprised 1.04% and 2.00% for K. breviceps and K. sima, respectively, and a polygynous mating system with a roving male strategy was proposed for both species. The sperm morphology for both Kogia species was described and is characterised by 20-25 spherical mitochondria arranged in rows around the midpiece. Attainment of sexual maturity in females occurred at 5 years in both Kogia species, and at 262cm and 215cm body length in K. breviceps and K. sima, respectively. The ovulation rates were 0.9 and 0.7 per year for K. breviceps and K. sima, respectively. In K. breviceps conceptions occurred from April to September and births from March to August, while in K. sima both conceptions and births occurred from December to March. Annual reproduction and a post-partum oestrus was suggested for both Kogia species. The diet of K. breviceps comprised 50 different cephalopod species from 22 families and 17 other prey species, while K. sima fed on 32 cephalopod species from 17 families and six others. Although niche overlap indices between the two species and between groups within each species were high, some differences in diet could be determined, which allow these two sympatrically occurring species to share the same ecological niche off the coast of Southern Africa. An analysis of the stranding patterns revealed that K. sima has a closer affinity to the Agulhas current and to higher water temperatures than K. breviceps, which is supported by differences in the size of the appendages between the two species. The population genetic analysis revealed a high haplotype and nucleotide diversity for K. breviceps in the Southern hemisphere, but a lack of significant phylogeographic structure, indicating substantial gene flow among populations and inhibiting genetic differentiation of local populations, although the South African population was somewhat isolated from others in the Southern Hemisphere. In contrast the data on the phylogeographic structure of K. sima were somewhat restrictive as the majority of the samples originated from South Africa. Nevertheless, both nucleotide and haplotype diversities were markedly lower than in K. breviceps and more similar to those for other small cetacean populations, suggesting a smaller population size for K. sima than for K. breviceps. Although both Kogia species belong to the medium to larger-sized odontocetes their life histories are located near the fast end of the slow-fast continuum of life histories of marine mammals, indicating high mortality rates. The “false-gill” marking and the ability to squirt ink are thought to reflect adaptations to predator mimicry and avoidance.
- Full Text:
- Date Issued: 2005
The subjective well-being of divorced single custodial parents
- Authors: Henry, Jaci Lee
- Date: 2005
- Subjects: Single parents -- South Africa , Divorced parents -- South Africa , Self-actualization (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9841 , http://hdl.handle.net/10948/368 , Single parents -- South Africa , Divorced parents -- South Africa , Self-actualization (Psychology)
- Description: As the divorce rate consistently rises, the occurrence of single parent families are becoming increasingly prevalent. Despite the marked increase in single custodial parents, research on this population (and more importantly, into the positive aspects such as their subjective well-being) has been neglected. Over the past three decades, psychologists have shifted the emphasis of their research from examining demographic and pathogenic factors to a positive psychology framework focusing on personality and resilience. The general aim of this study was to explore and describe the subjective wellbeing, including satisfaction with life and general happiness, of divorced, single custodial parents. In addition, this study aimed to identify potential patterns among the aspects of subjective well-being investigated and aimed to explore the relationships between these patterns. Thirty-five participants were included for participation in this study by means of non-probability, purposive sampling. The research measures included a biographical questionnaire, the Satisfaction with Life Scale (SWLS) and Affectometer-2 Scale (AFM-2). The data were analysed by the researcher and an independent statistician in terms of descriptive statistics and cluster analysis, or according to content analysis. This reflects a triangulation data collection and analysis method. Key findings included the following: The results of the SWLS indicated that the majority of participants reported being slightly dissatisfied with their lives. The results of the AFM-2 indicated that the participants generally had high levels of positive affect, and low levels of negative affect. However, the participants’ overall levels of happiness were still relatively low. A four cluster solution was obtained, with the clusters being significantly different from each other on all input variables. The first cluster experienced high levels of positive affect, low levels of negative affect, and high levels of overall happiness. The second cluster experienced predominantly slight dissatisfaction with their lives, high levels of positive affect, low levels of negative affect, and slightly low levels of overall happiness. The third cluster reported mostly dissatisfaction with their lives, low levels of positive affect, high levels of negative affect, and very low levels of overall happiness. The fourth cluster experienced predominantly slight satisfaction with xi life, slightly high levels of positive affect, neutral levels of negative affect, and low levels of overall happiness. It appeared that clusters containing participants who were satisfied with their jobs, were involved in a personal relationship and who participated in leisure activities, all experienced higher levels of subjective well-being. Overall, this study emphasises the value of and the need for South African research on the subjective wellbeing of divorced, single custodial parents.
- Full Text:
- Date Issued: 2005
- Authors: Henry, Jaci Lee
- Date: 2005
- Subjects: Single parents -- South Africa , Divorced parents -- South Africa , Self-actualization (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9841 , http://hdl.handle.net/10948/368 , Single parents -- South Africa , Divorced parents -- South Africa , Self-actualization (Psychology)
- Description: As the divorce rate consistently rises, the occurrence of single parent families are becoming increasingly prevalent. Despite the marked increase in single custodial parents, research on this population (and more importantly, into the positive aspects such as their subjective well-being) has been neglected. Over the past three decades, psychologists have shifted the emphasis of their research from examining demographic and pathogenic factors to a positive psychology framework focusing on personality and resilience. The general aim of this study was to explore and describe the subjective wellbeing, including satisfaction with life and general happiness, of divorced, single custodial parents. In addition, this study aimed to identify potential patterns among the aspects of subjective well-being investigated and aimed to explore the relationships between these patterns. Thirty-five participants were included for participation in this study by means of non-probability, purposive sampling. The research measures included a biographical questionnaire, the Satisfaction with Life Scale (SWLS) and Affectometer-2 Scale (AFM-2). The data were analysed by the researcher and an independent statistician in terms of descriptive statistics and cluster analysis, or according to content analysis. This reflects a triangulation data collection and analysis method. Key findings included the following: The results of the SWLS indicated that the majority of participants reported being slightly dissatisfied with their lives. The results of the AFM-2 indicated that the participants generally had high levels of positive affect, and low levels of negative affect. However, the participants’ overall levels of happiness were still relatively low. A four cluster solution was obtained, with the clusters being significantly different from each other on all input variables. The first cluster experienced high levels of positive affect, low levels of negative affect, and high levels of overall happiness. The second cluster experienced predominantly slight dissatisfaction with their lives, high levels of positive affect, low levels of negative affect, and slightly low levels of overall happiness. The third cluster reported mostly dissatisfaction with their lives, low levels of positive affect, high levels of negative affect, and very low levels of overall happiness. The fourth cluster experienced predominantly slight satisfaction with xi life, slightly high levels of positive affect, neutral levels of negative affect, and low levels of overall happiness. It appeared that clusters containing participants who were satisfied with their jobs, were involved in a personal relationship and who participated in leisure activities, all experienced higher levels of subjective well-being. Overall, this study emphasises the value of and the need for South African research on the subjective wellbeing of divorced, single custodial parents.
- Full Text:
- Date Issued: 2005