An assessment of strategies used to retain nurses in selected hospitals in the Nelson Mandela Metropolitan Municipal area
- Authors: Zweni, Sisilo Sylvia
- Date: 2005
- Subjects: Employee retention -- South Africa -- Nelson Mandela Metropole , Nurses -- South Africa -- Nelson Mandela Metropole , Labor turnover -- South Africa -- Nelson Mandela Metropole
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9260 , http://hdl.handle.net/10948/147 , Employee retention -- South Africa -- Nelson Mandela Metropole , Nurses -- South Africa -- Nelson Mandela Metropole , Labor turnover -- South Africa -- Nelson Mandela Metropole
- Description: The harsh realities currently facing public hospitals such as budget cuts, understaffing and poor working conditions, have resulted in nurses experiencing low morale and finding it increasingly difficult to stay in the public health sector. The obvious targeting of South African nurses by recruitment agencies with job offers to work overseas is causing a massive skills’ drain that the country cannot afford. The situation is further compounded by the fact that the government is freezing posts of those nurses who have resigned. Consequently, nurses who are currently working in these hospitals have to cope with unreasonable workloads. Public hospitals are nowadays faced with the challenge of delivering quality health care within the constraints of gross staff shortages, and an increasingly competitive global health environment. The main objective of this study was to identify strategies that can be implemented by hospitals in order to reduce turnover, thereby enhancing retention of staff. Interviews were conducted with the matrons-in-charge of the hospitals under study to investigate strategies that are in place to improve retention. Secondary data regarding staff turnover in the hospitals under study was collected and analysed. It emerged that there are no concrete strategies in place to lower turnover. Hospitals are indeed experiencing staff turnover and posts that were vacated by those nurses that have resigned are frozen. The literature survey revealed three strategies that can be utilised to retain employees, namely, motivation strategies, effective leadership strategies and human resources strategies. Based on various literature reviews, it was concluded that the three strategies are interrelated. The empirical survey was conducted at the three selected hospitals, to determine the extent to which the retention strategies identified in the literature survey are being utilised. All three are invariably used in the hospitals. It is evident that the leadership behaviour in these hospitals affects the level of motivation of employees. The extent to which some of the human resources strategies are utilised invariably leads to low morale and dissatisfaction among employees. Lastly, research findings were assessed with the aim of drawing conclusions so that appropriate recommendations could be made. Recommendations focused on the retention strategies that can be implemented to boost morale of employees and enhance retention.
- Full Text:
- Date Issued: 2005
- Authors: Zweni, Sisilo Sylvia
- Date: 2005
- Subjects: Employee retention -- South Africa -- Nelson Mandela Metropole , Nurses -- South Africa -- Nelson Mandela Metropole , Labor turnover -- South Africa -- Nelson Mandela Metropole
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9260 , http://hdl.handle.net/10948/147 , Employee retention -- South Africa -- Nelson Mandela Metropole , Nurses -- South Africa -- Nelson Mandela Metropole , Labor turnover -- South Africa -- Nelson Mandela Metropole
- Description: The harsh realities currently facing public hospitals such as budget cuts, understaffing and poor working conditions, have resulted in nurses experiencing low morale and finding it increasingly difficult to stay in the public health sector. The obvious targeting of South African nurses by recruitment agencies with job offers to work overseas is causing a massive skills’ drain that the country cannot afford. The situation is further compounded by the fact that the government is freezing posts of those nurses who have resigned. Consequently, nurses who are currently working in these hospitals have to cope with unreasonable workloads. Public hospitals are nowadays faced with the challenge of delivering quality health care within the constraints of gross staff shortages, and an increasingly competitive global health environment. The main objective of this study was to identify strategies that can be implemented by hospitals in order to reduce turnover, thereby enhancing retention of staff. Interviews were conducted with the matrons-in-charge of the hospitals under study to investigate strategies that are in place to improve retention. Secondary data regarding staff turnover in the hospitals under study was collected and analysed. It emerged that there are no concrete strategies in place to lower turnover. Hospitals are indeed experiencing staff turnover and posts that were vacated by those nurses that have resigned are frozen. The literature survey revealed three strategies that can be utilised to retain employees, namely, motivation strategies, effective leadership strategies and human resources strategies. Based on various literature reviews, it was concluded that the three strategies are interrelated. The empirical survey was conducted at the three selected hospitals, to determine the extent to which the retention strategies identified in the literature survey are being utilised. All three are invariably used in the hospitals. It is evident that the leadership behaviour in these hospitals affects the level of motivation of employees. The extent to which some of the human resources strategies are utilised invariably leads to low morale and dissatisfaction among employees. Lastly, research findings were assessed with the aim of drawing conclusions so that appropriate recommendations could be made. Recommendations focused on the retention strategies that can be implemented to boost morale of employees and enhance retention.
- Full Text:
- Date Issued: 2005
An exploration of health professional's perceptions of the role of clinical psychologists
- Authors: Zitianellis, Marina Sophia
- Date: 2005
- Subjects: Community health services -- South Africa , Community mental health services -- South Africa , Medical personnel -- South Africa -- Attitudes , Primary health care -- South Africa , Clinical psychologists
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3091 , http://hdl.handle.net/10962/d1002601 , Community health services -- South Africa , Community mental health services -- South Africa , Medical personnel -- South Africa -- Attitudes , Primary health care -- South Africa , Clinical psychologists
- Description: The South African government has initiated the transformation of health services in the country towards primary health care (PHC) in order to provide comprehensive care to individuals and families. The move to PHC involves an increased need for collaboration between health professionals. It is proposed that for effective team-work to take place, an understanding of the roles and functions of team members is imperative in providing quality mental health care. This study explored health professionals’ perceptions of the role and function of clinical psychologists working as part of a health care team in a community context. Three focus groups and three individual interviews were conducted with social workers, nurses and doctors. The data was then processed and analysed using a grounded theory method. The research highlighted the importance of knowledge, and how this affects referrals, perceptions, inter-professional relations and the perceived usefulness of clinical psychology and clinical psychologists. What is of significance is the potential power that the health professionals have as gatekeepers between the general public and clinical psychologists.
- Full Text:
- Date Issued: 2005
- Authors: Zitianellis, Marina Sophia
- Date: 2005
- Subjects: Community health services -- South Africa , Community mental health services -- South Africa , Medical personnel -- South Africa -- Attitudes , Primary health care -- South Africa , Clinical psychologists
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3091 , http://hdl.handle.net/10962/d1002601 , Community health services -- South Africa , Community mental health services -- South Africa , Medical personnel -- South Africa -- Attitudes , Primary health care -- South Africa , Clinical psychologists
- Description: The South African government has initiated the transformation of health services in the country towards primary health care (PHC) in order to provide comprehensive care to individuals and families. The move to PHC involves an increased need for collaboration between health professionals. It is proposed that for effective team-work to take place, an understanding of the roles and functions of team members is imperative in providing quality mental health care. This study explored health professionals’ perceptions of the role and function of clinical psychologists working as part of a health care team in a community context. Three focus groups and three individual interviews were conducted with social workers, nurses and doctors. The data was then processed and analysed using a grounded theory method. The research highlighted the importance of knowledge, and how this affects referrals, perceptions, inter-professional relations and the perceived usefulness of clinical psychology and clinical psychologists. What is of significance is the potential power that the health professionals have as gatekeepers between the general public and clinical psychologists.
- Full Text:
- Date Issued: 2005
An investigation into development of a stable aqeous suspension of Metronidazole Benzoate for oral use
- Authors: Zietsman, Sharon Lynne
- Date: 2005
- Subjects: Metronidazole -- Testing , Excipients -- South Africa -- Testing , Rheology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10158 , http://hdl.handle.net/10948/456 , Metronidazole -- Testing , Excipients -- South Africa -- Testing , Rheology -- South Africa
- Description: Metronidazole is a synthetic, nitroimidazole-derivative antibacterial and antiprotozoal agent (ed. McEvoy, 2001). It has been reported that crystallization occurs in aqueous suspensions of metronidazole benzoate, a bland-tasting prodrug of metronidazole, as a result of conversion from the anhydrous to the monohydrate form, thereby compromising the stability and clinical efficacy of the substance due to the particle size growth (Hoelgaard & Moller, 1983). A generic South African based pharmaceutical company commenced formulation of an aqueous metronidazole benzoate suspension and experienced problems with crystallization that occurred in products stored at 2 to 8 °C. This study aimed to continue development of the product in order to identify a formulation that prevents formation of the hydrate form of metronidazole benzoate and the accompanying crystal growth. A variety of metronidazole benzoate suspensions were manufactured on a laboratory scale using a number of natural and synthetic suspending agents, including magnesium aluminium silicate, povidone K90, xanthan gum and Avicel® RC-591 (microcrystalline cellulose and carboxymethylcellulose sodium), over a range of concentrations. Analytical quantification methods were developed and validated, and the physicochemical properties of the raw material and finished products were fully characterized. Rheological tests were performed in order to characterize the suspension flow properties. Real-time and accelerated stability studies and a temperature cycle study were conducted in accordance with the International Conference on Harmonization (ICH) guidelines. Conversion of metronidazole benzoate to the monohydrate form took place in suspensions containing xanthan gum 0.65 percent m/v under real-time and accelerated storage conditions. The suspensions containing Avicel® RC-591 were found to be physically and chemically stable after the temperature cycle and over the 12-week period whilst stored at 25 ºC / 60 percent RH and 5 ºC. The suspensions were chemically stable whilst stored at 40 ºC / 75 percent RH but showed sedimentation at this accelerated condition. The metronidazole benzoate contained in these products remained in the anhydrous state under all storage conditions and were consequently concluded to be the most stable formulations out of all the products analyzed in the current study. The suspending agent system consisting of microcrystalline cellulose and carboxymethylcellulose sodium thus shows promise in preventing the conversion of metronidazole benzoate from the anhydrate to the monohydrate form, thereby inhibited the subsequent increase in particle size due to crystal growth.
- Full Text:
- Date Issued: 2005
- Authors: Zietsman, Sharon Lynne
- Date: 2005
- Subjects: Metronidazole -- Testing , Excipients -- South Africa -- Testing , Rheology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10158 , http://hdl.handle.net/10948/456 , Metronidazole -- Testing , Excipients -- South Africa -- Testing , Rheology -- South Africa
- Description: Metronidazole is a synthetic, nitroimidazole-derivative antibacterial and antiprotozoal agent (ed. McEvoy, 2001). It has been reported that crystallization occurs in aqueous suspensions of metronidazole benzoate, a bland-tasting prodrug of metronidazole, as a result of conversion from the anhydrous to the monohydrate form, thereby compromising the stability and clinical efficacy of the substance due to the particle size growth (Hoelgaard & Moller, 1983). A generic South African based pharmaceutical company commenced formulation of an aqueous metronidazole benzoate suspension and experienced problems with crystallization that occurred in products stored at 2 to 8 °C. This study aimed to continue development of the product in order to identify a formulation that prevents formation of the hydrate form of metronidazole benzoate and the accompanying crystal growth. A variety of metronidazole benzoate suspensions were manufactured on a laboratory scale using a number of natural and synthetic suspending agents, including magnesium aluminium silicate, povidone K90, xanthan gum and Avicel® RC-591 (microcrystalline cellulose and carboxymethylcellulose sodium), over a range of concentrations. Analytical quantification methods were developed and validated, and the physicochemical properties of the raw material and finished products were fully characterized. Rheological tests were performed in order to characterize the suspension flow properties. Real-time and accelerated stability studies and a temperature cycle study were conducted in accordance with the International Conference on Harmonization (ICH) guidelines. Conversion of metronidazole benzoate to the monohydrate form took place in suspensions containing xanthan gum 0.65 percent m/v under real-time and accelerated storage conditions. The suspensions containing Avicel® RC-591 were found to be physically and chemically stable after the temperature cycle and over the 12-week period whilst stored at 25 ºC / 60 percent RH and 5 ºC. The suspensions were chemically stable whilst stored at 40 ºC / 75 percent RH but showed sedimentation at this accelerated condition. The metronidazole benzoate contained in these products remained in the anhydrous state under all storage conditions and were consequently concluded to be the most stable formulations out of all the products analyzed in the current study. The suspending agent system consisting of microcrystalline cellulose and carboxymethylcellulose sodium thus shows promise in preventing the conversion of metronidazole benzoate from the anhydrate to the monohydrate form, thereby inhibited the subsequent increase in particle size due to crystal growth.
- Full Text:
- Date Issued: 2005
Synthesis and photophysical properties of a covalently linked porphyrin-phthalocyanine conjugate
- Zhao, Zhixin, Ogunsipe, Abimbola O, Maree, M David, Nyokong, Tebello
- Authors: Zhao, Zhixin , Ogunsipe, Abimbola O , Maree, M David , Nyokong, Tebello
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/300358 , vital:57922 , xlink:href="https://doi.org/10.1142/S1088424605000253"
- Description: The synthesis of a phthalocyanine-porphyrin heteropentamer (zinc(II) tetra(5-phenoxy-10,15,20-triphenylporphyrin)) zinc(II) phthalocyanine, (ZnPc-(ZnTPP)4), containing four units of zinc tetraphenylporphyrin linked to a central zinc phthalocyanine macrocycle via an ether linkage is reported. The photophysical parameters of the pentamer are reported in toluene and dimethyl sulfoxide (DMSO). The observed differences in the fluorescence behavior of the pentamer in the two solvents is explained in terms of emission from different states; charge transfer state in DMSO and locally excited state in toluene. The rate constants for fluorescence, intersystem crossing, internal conversion, and of charge and energy transfer are reported for the pentamer. Quantum yields for fluorescence, internal conversion, triplet state and of charge and energy transfer are also reported for the pentamer, ZnPc-(ZnTPP)4 and the mixture of ZnPc and ZnTPP. The latter two parameters are higher in the pentamer compared to a mixture containing ZnPc and ZnTPP.
- Full Text:
- Date Issued: 2005
- Authors: Zhao, Zhixin , Ogunsipe, Abimbola O , Maree, M David , Nyokong, Tebello
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/300358 , vital:57922 , xlink:href="https://doi.org/10.1142/S1088424605000253"
- Description: The synthesis of a phthalocyanine-porphyrin heteropentamer (zinc(II) tetra(5-phenoxy-10,15,20-triphenylporphyrin)) zinc(II) phthalocyanine, (ZnPc-(ZnTPP)4), containing four units of zinc tetraphenylporphyrin linked to a central zinc phthalocyanine macrocycle via an ether linkage is reported. The photophysical parameters of the pentamer are reported in toluene and dimethyl sulfoxide (DMSO). The observed differences in the fluorescence behavior of the pentamer in the two solvents is explained in terms of emission from different states; charge transfer state in DMSO and locally excited state in toluene. The rate constants for fluorescence, intersystem crossing, internal conversion, and of charge and energy transfer are reported for the pentamer. Quantum yields for fluorescence, internal conversion, triplet state and of charge and energy transfer are also reported for the pentamer, ZnPc-(ZnTPP)4 and the mixture of ZnPc and ZnTPP. The latter two parameters are higher in the pentamer compared to a mixture containing ZnPc and ZnTPP.
- Full Text:
- Date Issued: 2005
Access to land as a human right the payment of just and equitable compensation for dispossessed land in South Africa
- Authors: Yanou, Michael A
- Date: 2005
- Subjects: Human rights -- South Africa , Compensation (Law) -- South Africa , Right of property -- South Africa , Land reform -- South Africa , Land tenure -- South Africa , Constitutional history -- South Africa , Restitution -- South Africa , Land tenure -- Law and legislation -- South Africa , Land reform -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3699 , http://hdl.handle.net/10962/d1003214 , Human rights -- South Africa , Compensation (Law) -- South Africa , Right of property -- South Africa , Land reform -- South Africa , Land tenure -- South Africa , Constitutional history -- South Africa , Restitution -- South Africa , Land tenure -- Law and legislation -- South Africa , Land reform -- Law and legislation -- South Africa
- Description: This thesis deals with the conceptualization of access to land by the dispossessed as a human right and commences with an account of the struggle for land between the peoples of African and European extractions in South Africa. It is observed that the latter assumed sovereignty over the ancestral lands of the former. The thesis discusses the theoretical foundation of the study and situates the topic within its conceptual parameters. The writer examines the notions of justice and equity in the context of the post apartheid constitutional mandate to redress the skewed policy of the past. It is argued that the dispossession of Africans from lands that they had possessed for thousands of years on the assumption that the land was terra nullius was profoundly iniquitous and unjust. Although the study is technically limited to dispossessions occurring on or after the 13th June 1913, it covers a fairly extensive account of dispossession predating this date. This historical analysis is imperative for two reasons. Besides supporting the writer’s contention that the limitation of restitution to land dispossessed on or after 1913 was arbitrary, it also highlights both the material and non-material cost of the devastating wars of dispossessions. The candidate comments extensively on the post apartheid constitutional property structure which was conceived as a redress to the imbalance created by dispossession. This underlying objective explains why the state’s present land policy is geared towards facilitating access to land for the landless. The thesis investigates the extent to which the present property structure which defines access to land as a human right has succeeded in achieving the stated objective. It reviews the strengths and weaknesses of the land restitution process as well as the question of the payment of just and equitable compensation for land expropriated for restitution. The latter was carefully examined because it plays a crucial role in the success or otherwise of the restitution scheme. The writer argues that the courts have, on occasions, construed just and equitable compensation generously. This approach has failed to reflect the moral component inherent in the Aristotelian corrective justice. This, in the context of South Africa, requires compensation to reflect the fact that what is being paid for is land dispossessed from the forebears of indigenous inhabitants. It seems obvious that the scales of justice are tilted heavily in favour of the propertied class whose ancestors were responsible for this dispossession. This has a ripple effect on the pace of the restitution process. It also seems to have the effect of favouring the property class at the expense of the entire restitution process. The candidate also comments on the court’s differing approaches to the interpretation of the constitutional property clause. The candidate contends that the construction of the property clause and related pieces of legislation in a manner that stresses the maintenance of a balance between private property interest and land reform is flawed. This contention is supported by the fact that these values do not have proportional worth in the present property context of South Africa. The narrow definition of “past racially discriminatory law and practices” and labour tenant as used in the relevant post apartheid land reform laws is criticized for the same reason of its uncontextual approach. A comparative appraisal of similar developments relating to property law in other societies like India and Zimbabwe has been done. The writer has treated the post reform land evictions as a form of dispossession. The candidate notes that the country should guard against allowing the disastrous developments in Zimbabwe to influence events in the country and calls for an amendment of the property clause of the constitution in response to the practical difficulties which a decade of the operation of the current constitution has revealed.
- Full Text:
- Date Issued: 2005
- Authors: Yanou, Michael A
- Date: 2005
- Subjects: Human rights -- South Africa , Compensation (Law) -- South Africa , Right of property -- South Africa , Land reform -- South Africa , Land tenure -- South Africa , Constitutional history -- South Africa , Restitution -- South Africa , Land tenure -- Law and legislation -- South Africa , Land reform -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3699 , http://hdl.handle.net/10962/d1003214 , Human rights -- South Africa , Compensation (Law) -- South Africa , Right of property -- South Africa , Land reform -- South Africa , Land tenure -- South Africa , Constitutional history -- South Africa , Restitution -- South Africa , Land tenure -- Law and legislation -- South Africa , Land reform -- Law and legislation -- South Africa
- Description: This thesis deals with the conceptualization of access to land by the dispossessed as a human right and commences with an account of the struggle for land between the peoples of African and European extractions in South Africa. It is observed that the latter assumed sovereignty over the ancestral lands of the former. The thesis discusses the theoretical foundation of the study and situates the topic within its conceptual parameters. The writer examines the notions of justice and equity in the context of the post apartheid constitutional mandate to redress the skewed policy of the past. It is argued that the dispossession of Africans from lands that they had possessed for thousands of years on the assumption that the land was terra nullius was profoundly iniquitous and unjust. Although the study is technically limited to dispossessions occurring on or after the 13th June 1913, it covers a fairly extensive account of dispossession predating this date. This historical analysis is imperative for two reasons. Besides supporting the writer’s contention that the limitation of restitution to land dispossessed on or after 1913 was arbitrary, it also highlights both the material and non-material cost of the devastating wars of dispossessions. The candidate comments extensively on the post apartheid constitutional property structure which was conceived as a redress to the imbalance created by dispossession. This underlying objective explains why the state’s present land policy is geared towards facilitating access to land for the landless. The thesis investigates the extent to which the present property structure which defines access to land as a human right has succeeded in achieving the stated objective. It reviews the strengths and weaknesses of the land restitution process as well as the question of the payment of just and equitable compensation for land expropriated for restitution. The latter was carefully examined because it plays a crucial role in the success or otherwise of the restitution scheme. The writer argues that the courts have, on occasions, construed just and equitable compensation generously. This approach has failed to reflect the moral component inherent in the Aristotelian corrective justice. This, in the context of South Africa, requires compensation to reflect the fact that what is being paid for is land dispossessed from the forebears of indigenous inhabitants. It seems obvious that the scales of justice are tilted heavily in favour of the propertied class whose ancestors were responsible for this dispossession. This has a ripple effect on the pace of the restitution process. It also seems to have the effect of favouring the property class at the expense of the entire restitution process. The candidate also comments on the court’s differing approaches to the interpretation of the constitutional property clause. The candidate contends that the construction of the property clause and related pieces of legislation in a manner that stresses the maintenance of a balance between private property interest and land reform is flawed. This contention is supported by the fact that these values do not have proportional worth in the present property context of South Africa. The narrow definition of “past racially discriminatory law and practices” and labour tenant as used in the relevant post apartheid land reform laws is criticized for the same reason of its uncontextual approach. A comparative appraisal of similar developments relating to property law in other societies like India and Zimbabwe has been done. The writer has treated the post reform land evictions as a form of dispossession. The candidate notes that the country should guard against allowing the disastrous developments in Zimbabwe to influence events in the country and calls for an amendment of the property clause of the constitution in response to the practical difficulties which a decade of the operation of the current constitution has revealed.
- Full Text:
- Date Issued: 2005
The dassie and the hunter: a South African meeting, by Jeff Opland: book review
- Authors: Wylie, Dan
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6125 , http://hdl.handle.net/10962/d1004709
- Description: [From the intoduction]: In this fascinating if not quite fine book Professor Opland, doyen scholar of oral poetries, treads that razor-edged line, devil of all memoirists, between humility and hubris, between open honesty and wallowing in one’s own unavoidability. David Yali-Manisi, the other half of this “South African meeting,” helps Opland out with his almost indefatigably calming, selfcontained, wise and energised presence. The relationship between these two men is an extraordinary, strangely evolving, not always smooth dance through several decades of South African history, politics, and academia. It really is ‘South African’ in the way in which it serves as lightning-rod to so many racial, personal, party-political, and literary currents in our recent past.
- Full Text:
- Date Issued: 2005
- Authors: Wylie, Dan
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6125 , http://hdl.handle.net/10962/d1004709
- Description: [From the intoduction]: In this fascinating if not quite fine book Professor Opland, doyen scholar of oral poetries, treads that razor-edged line, devil of all memoirists, between humility and hubris, between open honesty and wallowing in one’s own unavoidability. David Yali-Manisi, the other half of this “South African meeting,” helps Opland out with his almost indefatigably calming, selfcontained, wise and energised presence. The relationship between these two men is an extraordinary, strangely evolving, not always smooth dance through several decades of South African history, politics, and academia. It really is ‘South African’ in the way in which it serves as lightning-rod to so many racial, personal, party-political, and literary currents in our recent past.
- 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
Book Review:‘These Traits Portend’: review of Thabo Mbeki and the Struggle for the Soul of the ANC by William Mervyn Gumede
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: text , article
- Identifier: vital:7049 , http://hdl.handle.net/10962/d1007391 , https://www.researchgate.net/publication/29807204_Book_Review_'These_Traits_Portend'_Review_of_Thabo_Mbeki_and_the_Struggle_for_the_Soul_of_the_ANC_by_William_Mervyn_Gumede_Cape_Town_Zebra_Press_2005
- Description: preprint , “The identity of the old ANC is changing fast and its soul is becoming harder to locate” – so writes William Gumede in his best-selling account of the Mbeki presidency. This is a thoroughly admirable book, critical, informed and deeply concerned with the welfare of the people of South Africa, especially the poor – with no taint of political hagiography. The central plank of the critique concerns the ANC’s management of the economy. Gumede’s account of the genesis of GEAR and the devious way it was sprung on the tri-partite alliance is illuminating. It was done under the rubric of necessary modernization, according to Gumede, and allegiance to the Blair/Schroeder Third Way. But there were huge ancillary consequences: the loss of influence by the ordinary ANC membership, neglect of branch activity, sidelining of the parliamentary caucus, centralization of policy development in the office of the president, increasing reliance on consultants and relentless cosying up to big business.
- Full Text:
- Date Issued: 2005
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: text , article
- Identifier: vital:7049 , http://hdl.handle.net/10962/d1007391 , https://www.researchgate.net/publication/29807204_Book_Review_'These_Traits_Portend'_Review_of_Thabo_Mbeki_and_the_Struggle_for_the_Soul_of_the_ANC_by_William_Mervyn_Gumede_Cape_Town_Zebra_Press_2005
- Description: preprint , “The identity of the old ANC is changing fast and its soul is becoming harder to locate” – so writes William Gumede in his best-selling account of the Mbeki presidency. This is a thoroughly admirable book, critical, informed and deeply concerned with the welfare of the people of South Africa, especially the poor – with no taint of political hagiography. The central plank of the critique concerns the ANC’s management of the economy. Gumede’s account of the genesis of GEAR and the devious way it was sprung on the tri-partite alliance is illuminating. It was done under the rubric of necessary modernization, according to Gumede, and allegiance to the Blair/Schroeder Third Way. But there were huge ancillary consequences: the loss of influence by the ordinary ANC membership, neglect of branch activity, sidelining of the parliamentary caucus, centralization of policy development in the office of the president, increasing reliance on consultants and relentless cosying up to big business.
- Full Text:
- Date Issued: 2005
Introduction [to the book "Thuthula: Heart of the Labyrinth" by Chris Zithulele Mann]
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:7057 , http://hdl.handle.net/10962/d1007419
- Description: There are certain stories, the world over, that stir our hearts and minds to imaginings richer and deeper than the bald facts of history can easily satisfy. Such is the legend of Thuthula, the young Xhosa girl whose beauty and grace won the heart of Ngqika, chief of the Rharhabe Xhosa; the woman who was later married to his uncle Ndlambe, and then taken by Ngqika to become his wife. The events took place in or around the years 1806 and 1807 in what is now the Eastern Cape Province of South Africa. Prior to the central episode treated in the play, legend has it that Thuthula was out collecting firewood one day with her friends when she knelt at a spring to drink. Startled by the sudden appearance of a hunting dog crossing the stream below the spring, she looked up and saw a handsome young hunter chasing behind the dog. She was struck by his charm and good looks. Teasingly, as any young girl might do, she called her friends round her and challenged the young man to choose his favourite from among them. Amid much flirting and laughter, the object of all this girlish attention was pushed into making a choice. Inevitably, given her beauty, his playful decision fell on Thuthula. This was the first meeting of Thuthula, daughter of Mthunzana, with Ngqika, son of Chief Mlawu.
- Full Text:
- Date Issued: 2005
- Authors: Wright, Laurence
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:7057 , http://hdl.handle.net/10962/d1007419
- Description: There are certain stories, the world over, that stir our hearts and minds to imaginings richer and deeper than the bald facts of history can easily satisfy. Such is the legend of Thuthula, the young Xhosa girl whose beauty and grace won the heart of Ngqika, chief of the Rharhabe Xhosa; the woman who was later married to his uncle Ndlambe, and then taken by Ngqika to become his wife. The events took place in or around the years 1806 and 1807 in what is now the Eastern Cape Province of South Africa. Prior to the central episode treated in the play, legend has it that Thuthula was out collecting firewood one day with her friends when she knelt at a spring to drink. Startled by the sudden appearance of a hunting dog crossing the stream below the spring, she looked up and saw a handsome young hunter chasing behind the dog. She was struck by his charm and good looks. Teasingly, as any young girl might do, she called her friends round her and challenged the young man to choose his favourite from among them. Amid much flirting and laughter, the object of all this girlish attention was pushed into making a choice. Inevitably, given her beauty, his playful decision fell on Thuthula. This was the first meeting of Thuthula, daughter of Mthunzana, with Ngqika, son of Chief Mlawu.
- Full Text:
- Date Issued: 2005
Developing a decision-making model that best closes the gap between strategy and the capital investment procedure for Cadbury South Africa
- Authors: Wilson, Brendan David
- Date: 2005
- Subjects: Chocolate industry -- Capital investment -- South Africa , Chocolate industry -- South Africa -- Finance , Chocolate industry -- South Africa -- Decision making , Cadbury Ltd
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8596 , http://hdl.handle.net/10948/406 , Chocolate industry -- Capital investment -- South Africa , Chocolate industry -- South Africa -- Finance , Chocolate industry -- South Africa -- Decision making , Cadbury Ltd
- Description: This study addresses the fact that the current Cadbury investment appraisal process does not adequately address the strategic implications of many capital investment decisions. Although attempts are made to quantify, in financial terms, the strategic benefits from a given investment, it appears that many perceived benefits are left out of the appraisal process because they lack precise financial quantification, resulting in managers placing greater reliance on the qualitative dimensions of their investment decision-making such as judgement and intuition. The current Cadbury process is based on the unequivocal advice that academics give to organisations and to managers about how to appraise largescale capital investment projects. The use of discounted cash flow techniques, based upon the discounting of decision contingent cash flows at the organisations opportunity cost of capital is regarded as the definitive investment appraisal technique. On this, the academic literature is clear. Whilst there are strong theoretical justifications for the use of discounted cash flow based models, managers continue to use non-DCF appraisal techniques such as payback irrespective of their theoretical shortcomings. The lack of use of a sophisticated risk assessment model is also disappointing, with Cadbury ignoring individual project risk and adopting a naive approach. Finally, this study indicates that Cadbury managers need not be forced into choosing either an economic/normative approach or a strategic/managerial approach to capital-investment decision-making but that rather a hybrid approach, including both the economic and strategic dimensions of choice, is more applicable for effective strategy incorporation.
- Full Text:
- Date Issued: 2005
- Authors: Wilson, Brendan David
- Date: 2005
- Subjects: Chocolate industry -- Capital investment -- South Africa , Chocolate industry -- South Africa -- Finance , Chocolate industry -- South Africa -- Decision making , Cadbury Ltd
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8596 , http://hdl.handle.net/10948/406 , Chocolate industry -- Capital investment -- South Africa , Chocolate industry -- South Africa -- Finance , Chocolate industry -- South Africa -- Decision making , Cadbury Ltd
- Description: This study addresses the fact that the current Cadbury investment appraisal process does not adequately address the strategic implications of many capital investment decisions. Although attempts are made to quantify, in financial terms, the strategic benefits from a given investment, it appears that many perceived benefits are left out of the appraisal process because they lack precise financial quantification, resulting in managers placing greater reliance on the qualitative dimensions of their investment decision-making such as judgement and intuition. The current Cadbury process is based on the unequivocal advice that academics give to organisations and to managers about how to appraise largescale capital investment projects. The use of discounted cash flow techniques, based upon the discounting of decision contingent cash flows at the organisations opportunity cost of capital is regarded as the definitive investment appraisal technique. On this, the academic literature is clear. Whilst there are strong theoretical justifications for the use of discounted cash flow based models, managers continue to use non-DCF appraisal techniques such as payback irrespective of their theoretical shortcomings. The lack of use of a sophisticated risk assessment model is also disappointing, with Cadbury ignoring individual project risk and adopting a naive approach. Finally, this study indicates that Cadbury managers need not be forced into choosing either an economic/normative approach or a strategic/managerial approach to capital-investment decision-making but that rather a hybrid approach, including both the economic and strategic dimensions of choice, is more applicable for effective strategy incorporation.
- Full Text:
- Date Issued: 2005
The development phase of a case study of outcomes-based education assessment policy in the Human and Social Sciences learning area of C2005
- Authors: Wilmot, P Dianne
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6106 , http://hdl.handle.net/10962/d1009735
- Description: The second phase, the 'development phase' (January to December 2003), of an ongoing research project on policy implementation with specific reference to Grade 9 of the Human and Social Sciences (HSS) learning area of C2005 is described. More specifically, a journey, in which nine History and Geography teachers at two independent schools and one university lecturer, working collaboratively as an HSS research team, navigated their way through the national curriculum and assessment policy arena, pushed the boundaries of their own practice as reflexive practitioners, and implemented the first national application of the new General Education and Training Certificate (GETC), is outlined. The article consists of three sections. The first outlines and offers critical commentary on the national policy context in which the research was located, and in which all South African educators currently work. Drawing on national and international literature, it illuminates a number of issues pertinent to national policy enactment. The second section describes the Development Phase. It outlines two areas of curriculum innovation at the two schools, namely enquiry-based learning and the development of a learning process 'map', before honing in on Grade 9 CASS. Section three describes the implementation at the two schools of the HSS Common Tasks for Assessment (CTA) in October/November 2003. The conclusion synthesises the narrative.
- Full Text:
- Date Issued: 2005
- Authors: Wilmot, P Dianne
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6106 , http://hdl.handle.net/10962/d1009735
- Description: The second phase, the 'development phase' (January to December 2003), of an ongoing research project on policy implementation with specific reference to Grade 9 of the Human and Social Sciences (HSS) learning area of C2005 is described. More specifically, a journey, in which nine History and Geography teachers at two independent schools and one university lecturer, working collaboratively as an HSS research team, navigated their way through the national curriculum and assessment policy arena, pushed the boundaries of their own practice as reflexive practitioners, and implemented the first national application of the new General Education and Training Certificate (GETC), is outlined. The article consists of three sections. The first outlines and offers critical commentary on the national policy context in which the research was located, and in which all South African educators currently work. Drawing on national and international literature, it illuminates a number of issues pertinent to national policy enactment. The second section describes the Development Phase. It outlines two areas of curriculum innovation at the two schools, namely enquiry-based learning and the development of a learning process 'map', before honing in on Grade 9 CASS. Section three describes the implementation at the two schools of the HSS Common Tasks for Assessment (CTA) in October/November 2003. The conclusion synthesises the narrative.
- Full Text:
- Date Issued: 2005
The development and implementation of a performance management system: a case study
- Whittington-Jones, Alexandra
- Authors: Whittington-Jones, Alexandra
- Date: 2005
- Subjects: Public Service Accountability Monitor (South Africa) Non-governmental organizations -- South Africa -- Evaluation Performance -- Management -- Case studies Organizational effectiveness -- Case studies
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:738 , http://hdl.handle.net/10962/d1003858
- Description: After a review of the literature relevant to performance management systems both over time and across different types of organizations, this thesis confines its research to a case study of the development and implementation of a performance management system in a non-governmental organization (NGO), the Public Service Accountability Monitor (PSAM). Collation of the relevant data is followed by a discussion of the development and implementation of the performance management system at the PSAM over a 5-year period from 1 June 1999 to 31 May 2004. This is considered in terms of the PSAM’s achievement of commitments to Funders and the concurrent development of the performance management system. Next an analysis of major themes that emerged from the research, in terms of important items for consideration in the development and implementation of a performance management system in an NGO, and areas for possible future improvements to the system is presented. After analyzing the relevant information, it became apparent that the performance management system has no direct bearing on the ability of the PSAM to achieve its stated commitment to Funders. However, these short-term focused expectations of the performance management system are outweighed by the positive contributions that have been made by its introduction, specifically in the area of training and development. This important aspect of capacity building and staff empowerment speaks to the long term sustainability of the organization. Although the PSAM’s performance management system undergoes continual improvement, significant inroads have been made into providing a sensible, clear and dynamic solution to the problem of rewarding efficient and effective performance. The PSAM has indeed benefited from the introduction of the performance management system in a number of ways. It is evident that these benefits could be applicable to other NGOs.
- Full Text:
- Date Issued: 2005
- Authors: Whittington-Jones, Alexandra
- Date: 2005
- Subjects: Public Service Accountability Monitor (South Africa) Non-governmental organizations -- South Africa -- Evaluation Performance -- Management -- Case studies Organizational effectiveness -- Case studies
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:738 , http://hdl.handle.net/10962/d1003858
- Description: After a review of the literature relevant to performance management systems both over time and across different types of organizations, this thesis confines its research to a case study of the development and implementation of a performance management system in a non-governmental organization (NGO), the Public Service Accountability Monitor (PSAM). Collation of the relevant data is followed by a discussion of the development and implementation of the performance management system at the PSAM over a 5-year period from 1 June 1999 to 31 May 2004. This is considered in terms of the PSAM’s achievement of commitments to Funders and the concurrent development of the performance management system. Next an analysis of major themes that emerged from the research, in terms of important items for consideration in the development and implementation of a performance management system in an NGO, and areas for possible future improvements to the system is presented. After analyzing the relevant information, it became apparent that the performance management system has no direct bearing on the ability of the PSAM to achieve its stated commitment to Funders. However, these short-term focused expectations of the performance management system are outweighed by the positive contributions that have been made by its introduction, specifically in the area of training and development. This important aspect of capacity building and staff empowerment speaks to the long term sustainability of the organization. Although the PSAM’s performance management system undergoes continual improvement, significant inroads have been made into providing a sensible, clear and dynamic solution to the problem of rewarding efficient and effective performance. The PSAM has indeed benefited from the introduction of the performance management system in a number of ways. It is evident that these benefits could be applicable to other NGOs.
- Full Text:
- Date Issued: 2005
A critical investigation into the process of negotiating a mathematics education curriculum with pre-service teachers
- Authors: Westaway, Lise
- Date: 2005
- Subjects: Teacher participation in curriculum planning -- South Africa Curriculum planning -- South Africa Curriculum change -- South Africa Mathematics -- Study and teaching -- South Africa Teachers -- Training of -- South Africa Mathematics teachers -- Training of -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1826 , http://hdl.handle.net/10962/d1003712
- Description: It's almost like a dinner party and a buffet. A dinner party you get dished up stuff and you eat it and a buffet you can choose what you want out of a range of stuff. I mean think about it when you go to a dinner party- they always dish up something you don't like and you don't want to eat it anyway. It's the same if you have a lecturer in the front that just dishes out what you're going to learn, ... you have to learn it. But in terms of the curriculum negotiation process, I've got to choose what I wanted to leam. (Melissa II 27/11/01: 3) This thesis focuses on the process of negotiating the curriculum with twelve pre-service teachers registered for the Bachelor of Education (Primary) Degree during their Mathematics Education Course in their third year of study. The research is presented methodologically as an action research located within two paradigmatic positions, interpretive and critical. The research attempted to understand, interpret and critique the process of curriculum negotiation within the context of teacher education in South Africa In order to understand the negotiated curriculum process, experiences of the participants are presented through the use of their voices within the thesis. The interpretation is based on the construction and reconstruction of meaning during the enactment of the negotiated curriculum process and during the writing and reviewing of this thesis. The critique is rooted in the historical, cultural and social contexts of both the students and the author. The main contention of this thesis is that curriculum negotiation is not necessarily a suitable vehicle for developing a critical pedagogy in pre-service teacher education when all the participants form a homogenous group in this case, white middle-class women. The democratic values promoted within the context of our curriculum negotiation were fraught with dilemmas and entrenched the values of western liberalism. At most, the curriculum negotiation process and the development of a democratic learning environment, promoted a conscientisation at an individual level, namely a ' transformation of consciousness' . The democratic values promoted in our pedagogy were not sufficient in bringing about social change, a 'transformation for social action'.
- Full Text:
- Date Issued: 2005
- Authors: Westaway, Lise
- Date: 2005
- Subjects: Teacher participation in curriculum planning -- South Africa Curriculum planning -- South Africa Curriculum change -- South Africa Mathematics -- Study and teaching -- South Africa Teachers -- Training of -- South Africa Mathematics teachers -- Training of -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1826 , http://hdl.handle.net/10962/d1003712
- Description: It's almost like a dinner party and a buffet. A dinner party you get dished up stuff and you eat it and a buffet you can choose what you want out of a range of stuff. I mean think about it when you go to a dinner party- they always dish up something you don't like and you don't want to eat it anyway. It's the same if you have a lecturer in the front that just dishes out what you're going to learn, ... you have to learn it. But in terms of the curriculum negotiation process, I've got to choose what I wanted to leam. (Melissa II 27/11/01: 3) This thesis focuses on the process of negotiating the curriculum with twelve pre-service teachers registered for the Bachelor of Education (Primary) Degree during their Mathematics Education Course in their third year of study. The research is presented methodologically as an action research located within two paradigmatic positions, interpretive and critical. The research attempted to understand, interpret and critique the process of curriculum negotiation within the context of teacher education in South Africa In order to understand the negotiated curriculum process, experiences of the participants are presented through the use of their voices within the thesis. The interpretation is based on the construction and reconstruction of meaning during the enactment of the negotiated curriculum process and during the writing and reviewing of this thesis. The critique is rooted in the historical, cultural and social contexts of both the students and the author. The main contention of this thesis is that curriculum negotiation is not necessarily a suitable vehicle for developing a critical pedagogy in pre-service teacher education when all the participants form a homogenous group in this case, white middle-class women. The democratic values promoted within the context of our curriculum negotiation were fraught with dilemmas and entrenched the values of western liberalism. At most, the curriculum negotiation process and the development of a democratic learning environment, promoted a conscientisation at an individual level, namely a ' transformation of consciousness' . The democratic values promoted in our pedagogy were not sufficient in bringing about social change, a 'transformation for social action'.
- Full Text:
- Date Issued: 2005
The development of best practice guidelines for the contingency management of health-related absenteeism in the motor manufacturing industry
- Authors: Werner, Amanda
- Date: 2005
- Subjects: Sick leave , Absenteeism (Labor) , Contingency theory (Management) , Automobile industry and trade -- South Africa
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:9379 , http://hdl.handle.net/10948/160 , Sick leave , Absenteeism (Labor) , Contingency theory (Management) , Automobile industry and trade -- South Africa
- Description: The research problem in this study was to identify best practices for the contingency management of health-related absenteeism. To achieve this goal, the following actions were taken: A literature study was conducted to identify the scope and impact of health-related absenteeism on organisations and the legal parameters within which health-related absenteeism should be managed. A literature study was also conducted to identify strategies to prevent and reduce health-related absenteeism and strategies to ensure the continuous provision of products and services in periods of high absenteeism. The theoretical study focused on the management of absenteeism, wellness, ill-health/mental problems and HIV/AIDS, as well as contingency strategies aimed at maintaining production and service provision. iii The findings from the literature study were integrated into a model of best practices for the contingency management of health-related absenteeism. This model was used as a basis for the development of a survey questionnaire to determine whether senior human resources practitioners, occupational health practitioners or line managers, who were responsible for the management of health-related absenteeism in organisations, agreed with the best practice guidelines developed in the study. The survey was conducted in the motor and motor component industry in the Nelson Mandela Metropolitan Municipality and Buffalo City Metropole. The empirical results from the study showed a strong concurrence with the best practices guidelines developed in the study, with the exception of the strategies aimed at maintaining undisrupted production and service provision during periods of high absenteeism. In particular, disagreement was shown with regard to alternative work arrangements such as flexible work-hours, a compressed workweek, telecommuting and job-sharing. Absenteeism, in general, is an issue that organisations are challenged with on a daily basis. The proliferation of various diseases, specifically HIV/AIDS, is contributing to this problem. An integrated and strategic approach is required to deal effectively and constructively with the immediate and expected future impact of health-related issues on absenteeism. Organisations could use the best practices guidelines, identified in this study, as a mechanism to benchmark how well they manage health-related absenteeism
- Full Text:
- Date Issued: 2005
- Authors: Werner, Amanda
- Date: 2005
- Subjects: Sick leave , Absenteeism (Labor) , Contingency theory (Management) , Automobile industry and trade -- South Africa
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:9379 , http://hdl.handle.net/10948/160 , Sick leave , Absenteeism (Labor) , Contingency theory (Management) , Automobile industry and trade -- South Africa
- Description: The research problem in this study was to identify best practices for the contingency management of health-related absenteeism. To achieve this goal, the following actions were taken: A literature study was conducted to identify the scope and impact of health-related absenteeism on organisations and the legal parameters within which health-related absenteeism should be managed. A literature study was also conducted to identify strategies to prevent and reduce health-related absenteeism and strategies to ensure the continuous provision of products and services in periods of high absenteeism. The theoretical study focused on the management of absenteeism, wellness, ill-health/mental problems and HIV/AIDS, as well as contingency strategies aimed at maintaining production and service provision. iii The findings from the literature study were integrated into a model of best practices for the contingency management of health-related absenteeism. This model was used as a basis for the development of a survey questionnaire to determine whether senior human resources practitioners, occupational health practitioners or line managers, who were responsible for the management of health-related absenteeism in organisations, agreed with the best practice guidelines developed in the study. The survey was conducted in the motor and motor component industry in the Nelson Mandela Metropolitan Municipality and Buffalo City Metropole. The empirical results from the study showed a strong concurrence with the best practices guidelines developed in the study, with the exception of the strategies aimed at maintaining undisrupted production and service provision during periods of high absenteeism. In particular, disagreement was shown with regard to alternative work arrangements such as flexible work-hours, a compressed workweek, telecommuting and job-sharing. Absenteeism, in general, is an issue that organisations are challenged with on a daily basis. The proliferation of various diseases, specifically HIV/AIDS, is contributing to this problem. An integrated and strategic approach is required to deal effectively and constructively with the immediate and expected future impact of health-related issues on absenteeism. Organisations could use the best practices guidelines, identified in this study, as a mechanism to benchmark how well they manage health-related absenteeism
- Full Text:
- Date Issued: 2005
Tertiary treatment in integrated algal ponding systems
- Authors: Wells, Charles Digby
- Date: 2005
- Subjects: Sewage -- Purification -- Anaerobic treatment , Water -- Purification -- Biological treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4068 , http://hdl.handle.net/10962/d1006162 , Sewage -- Purification -- Anaerobic treatment , Water -- Purification -- Biological treatment
- Description: Inadequate sanitation is one of the leading causes of water pollution and consequently illness in many underdeveloped countries, including South Africa and, specifically, the Eastern Cape Province, where cholera has become endemic. As modern wastewater treatment processes are often energy intensive and expensive, they are not suitable for use in these areas. There is thus a need to develop more sustainable wastewater treatment technologies for application in smaller communities. The integrated algal ponding system (IAPS) was identified as a possible solution to this wastewater management problem and was investigated for adaptation to local conditions, at the Rhodes University Environmental Experimental Field Station in Grahamstown, South Africa. The system was monitored over a period of nine years, with various configuration adjustments of the high rate algal pond (HRAP) unit operation investigated. Under standard operating conditions, the system was able to achieve levels of nutrient and organic removal comparable with conventional wastewater treatment works. The mean nitrate level achieved in the effluent was below the 15mg.l-1 South African discharge standard, however, nitrate removal in the IAPS was found to be inconsistent. Although the system was unable to sustain chemical oxygen demand (COD) removal to below the 75mg.l-1 South African discharge standard, a removal rate of 87% was recorded, with the residual COD remaining in the form of algal biomass. Previous studies in the Eastern Cape Province have shown that few small wastewater treatment works produce effluent that meets the microbial count specification. Therefore, in addition to the collation of IAPS data from the entire nine year monitoring period, this study also investigated the use of the HRAP as an independent unit operation for disinfection of effluent from small sewage plants. It was demonstrated that the independent high rate algal pond (IHRAP) as a free standing unit operation could consistently produce water with Escherichia coli counts of 0cfu.100ml-1. The observed effect was related to a number of possible conditions prevailing in the system, including elevated pH, sunlight and dissolved oxygen. It was also found that the IHRAP greatly enhanced the nutrient removal capabilities of the conventional IAPS, making it possible to reliably and consistently maintain phosphate and ammonium levels in the final effluent to below 5mg.l-1 and 2mg.l-1 respectively (South African discharge standards are 10mg.l-1 and 3mg.l-1 in each case). The quality of the final effluent produced by the optimisation of the IAPS would allow it to be used for irrigation, thereby providing an alternative water source in water stressed areas. The system also proved to be exceptionally robust and data collected during periods of intensive and low management regimes were broadly comparable. Results of the 9 year study have demonstrated reliable performance of the IAPS and its use an appropriate, sustainable wastewater treatment option for small communities.
- Full Text:
- Date Issued: 2005
- Authors: Wells, Charles Digby
- Date: 2005
- Subjects: Sewage -- Purification -- Anaerobic treatment , Water -- Purification -- Biological treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4068 , http://hdl.handle.net/10962/d1006162 , Sewage -- Purification -- Anaerobic treatment , Water -- Purification -- Biological treatment
- Description: Inadequate sanitation is one of the leading causes of water pollution and consequently illness in many underdeveloped countries, including South Africa and, specifically, the Eastern Cape Province, where cholera has become endemic. As modern wastewater treatment processes are often energy intensive and expensive, they are not suitable for use in these areas. There is thus a need to develop more sustainable wastewater treatment technologies for application in smaller communities. The integrated algal ponding system (IAPS) was identified as a possible solution to this wastewater management problem and was investigated for adaptation to local conditions, at the Rhodes University Environmental Experimental Field Station in Grahamstown, South Africa. The system was monitored over a period of nine years, with various configuration adjustments of the high rate algal pond (HRAP) unit operation investigated. Under standard operating conditions, the system was able to achieve levels of nutrient and organic removal comparable with conventional wastewater treatment works. The mean nitrate level achieved in the effluent was below the 15mg.l-1 South African discharge standard, however, nitrate removal in the IAPS was found to be inconsistent. Although the system was unable to sustain chemical oxygen demand (COD) removal to below the 75mg.l-1 South African discharge standard, a removal rate of 87% was recorded, with the residual COD remaining in the form of algal biomass. Previous studies in the Eastern Cape Province have shown that few small wastewater treatment works produce effluent that meets the microbial count specification. Therefore, in addition to the collation of IAPS data from the entire nine year monitoring period, this study also investigated the use of the HRAP as an independent unit operation for disinfection of effluent from small sewage plants. It was demonstrated that the independent high rate algal pond (IHRAP) as a free standing unit operation could consistently produce water with Escherichia coli counts of 0cfu.100ml-1. The observed effect was related to a number of possible conditions prevailing in the system, including elevated pH, sunlight and dissolved oxygen. It was also found that the IHRAP greatly enhanced the nutrient removal capabilities of the conventional IAPS, making it possible to reliably and consistently maintain phosphate and ammonium levels in the final effluent to below 5mg.l-1 and 2mg.l-1 respectively (South African discharge standards are 10mg.l-1 and 3mg.l-1 in each case). The quality of the final effluent produced by the optimisation of the IAPS would allow it to be used for irrigation, thereby providing an alternative water source in water stressed areas. The system also proved to be exceptionally robust and data collected during periods of intensive and low management regimes were broadly comparable. Results of the 9 year study have demonstrated reliable performance of the IAPS and its use an appropriate, sustainable wastewater treatment option for small communities.
- Full Text:
- Date Issued: 2005
An investigation into the antibacterial activities of medicinial plants traditionally used in the Eastern Cape to treat secondary skin infections associated with burn wounds
- Authors: Weideman, Liezel
- Date: 2005
- Subjects: Materia medica, Vegetable -- South Africa -- Eastern Cape , Burns and scalds -- Alternative treatment , Skin -- Infections
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10116 , http://hdl.handle.net/10948/172 , Materia medica, Vegetable -- South Africa -- Eastern Cape , Burns and scalds -- Alternative treatment , Skin -- Infections
- Description: Traditional medicine has a long history of being used for treating various ailments ranging in severity. Although traditional medicine has typically been the health care for the poorest levels of society, there is a worldwide growth in popularity. The growing popularity of traditional medicine, termed the green boom, may be ascribed to people taking a more holistic approach to maintain their health. Traditional medicine is widely used on a regular basis by 70% of South Africans. Various indigenous medicinal plants are used for the preparation of traditional herbal medicine. These plants are mostly indigenous to the regions were it is used. In this study four medicinal plants (Bulbine frutescens, Leonotis leounurus, Melianthus major & Zantedecshia aethiopica) that are traditionally used in the Eastern Cape region for treating burn wound infections, were collected for investigation. The in vitro antibacterial activity of these plants was tested against different bacterial strains of eight different bacteria. The bacteria used in this investigation included bacterial strains of four Gram-positive bacteria, S. aureus, methicillin-resistant S. aureus (MRSA), E. feacalis, S. pyogenes and four Gramnegative bacteria, P. aeruginosa, A. baumanii, K. pneumoniae and P. mirabilis. Traditional preparations as well as three different extracts (methanol, aqueous & acetone) of the plants were used for in vitro antibacterial activity testing. The microtitre plate assay and agar dilution assay were used for determining the antibacterial activity of the traditional preparations and plant extracts against the different bacterial strains. In the microtitre plate assay the antibacterial activity was tested using the bacterial growth indicator, INT and a microtitre plate spectrophotometer to determine the minimal inhibitory concentrations of the plant extracts and traditional preparations. The microtitre plate assay was used for testing the antibacterial activity of the plants against the bacterial strains of five bacteria, S. aureus, MRSA, P. aeruginosa, A. baumanii and K. pneumoniae. The bacterial strains of the three bacteria, S. pyogenes, E. feacalis and P. mirabilis were not compatible with the microtitre plate assay using INT and spectrophotometric readings to determine bacterial inhibition. Therefore the agar dilution assay were used as an alternative method for determining the MIC’s of the plant extracts against the bacterial strains of these bacteria. The initial plant extract concentration in the microtitre plate assay differed with the different plant extracts in the microtitre plate assay. Acetone followed by methanol extracted the highest plant extract concentrations with the different medicinal plants. M. major followed by L. leonurus produced the highest plant extract concentrations following extraction with the different extraction solvents. Consequently the acetone extract of M. major had the highest plant extract concentration before serial dilution in the microtitre plate assay. Uniform plant extract concentrations were tested in the agar dilution assay. The methanol extract followed by the acetone extract of the plants gave the highest antibacterial activity against the different bacterial strains. The extracts of M. major followed by L. leonurus inhibited the highest number of bacterial strains in the microtitre plate assay and the extracts of B. frutescens inhibited the lowest number of bacterial strains. The acetone and methanol extracts of M. major were the only extracts that displayed antibacterial activity in the agar dilution assay. The bacterial strains of P. mirabilis were the only bacteria that were inhibited using this method. The bacterial strains of S. pyogenes and E. feacalis were not inhibited at any of the plant extract concentrations in the agar dilution assay.
- Full Text:
- Date Issued: 2005
- Authors: Weideman, Liezel
- Date: 2005
- Subjects: Materia medica, Vegetable -- South Africa -- Eastern Cape , Burns and scalds -- Alternative treatment , Skin -- Infections
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10116 , http://hdl.handle.net/10948/172 , Materia medica, Vegetable -- South Africa -- Eastern Cape , Burns and scalds -- Alternative treatment , Skin -- Infections
- Description: Traditional medicine has a long history of being used for treating various ailments ranging in severity. Although traditional medicine has typically been the health care for the poorest levels of society, there is a worldwide growth in popularity. The growing popularity of traditional medicine, termed the green boom, may be ascribed to people taking a more holistic approach to maintain their health. Traditional medicine is widely used on a regular basis by 70% of South Africans. Various indigenous medicinal plants are used for the preparation of traditional herbal medicine. These plants are mostly indigenous to the regions were it is used. In this study four medicinal plants (Bulbine frutescens, Leonotis leounurus, Melianthus major & Zantedecshia aethiopica) that are traditionally used in the Eastern Cape region for treating burn wound infections, were collected for investigation. The in vitro antibacterial activity of these plants was tested against different bacterial strains of eight different bacteria. The bacteria used in this investigation included bacterial strains of four Gram-positive bacteria, S. aureus, methicillin-resistant S. aureus (MRSA), E. feacalis, S. pyogenes and four Gramnegative bacteria, P. aeruginosa, A. baumanii, K. pneumoniae and P. mirabilis. Traditional preparations as well as three different extracts (methanol, aqueous & acetone) of the plants were used for in vitro antibacterial activity testing. The microtitre plate assay and agar dilution assay were used for determining the antibacterial activity of the traditional preparations and plant extracts against the different bacterial strains. In the microtitre plate assay the antibacterial activity was tested using the bacterial growth indicator, INT and a microtitre plate spectrophotometer to determine the minimal inhibitory concentrations of the plant extracts and traditional preparations. The microtitre plate assay was used for testing the antibacterial activity of the plants against the bacterial strains of five bacteria, S. aureus, MRSA, P. aeruginosa, A. baumanii and K. pneumoniae. The bacterial strains of the three bacteria, S. pyogenes, E. feacalis and P. mirabilis were not compatible with the microtitre plate assay using INT and spectrophotometric readings to determine bacterial inhibition. Therefore the agar dilution assay were used as an alternative method for determining the MIC’s of the plant extracts against the bacterial strains of these bacteria. The initial plant extract concentration in the microtitre plate assay differed with the different plant extracts in the microtitre plate assay. Acetone followed by methanol extracted the highest plant extract concentrations with the different medicinal plants. M. major followed by L. leonurus produced the highest plant extract concentrations following extraction with the different extraction solvents. Consequently the acetone extract of M. major had the highest plant extract concentration before serial dilution in the microtitre plate assay. Uniform plant extract concentrations were tested in the agar dilution assay. The methanol extract followed by the acetone extract of the plants gave the highest antibacterial activity against the different bacterial strains. The extracts of M. major followed by L. leonurus inhibited the highest number of bacterial strains in the microtitre plate assay and the extracts of B. frutescens inhibited the lowest number of bacterial strains. The acetone and methanol extracts of M. major were the only extracts that displayed antibacterial activity in the agar dilution assay. The bacterial strains of P. mirabilis were the only bacteria that were inhibited using this method. The bacterial strains of S. pyogenes and E. feacalis were not inhibited at any of the plant extract concentrations in the agar dilution assay.
- Full Text:
- Date Issued: 2005
The therapist as a "bad object": the use of countertransference enactment to facilitate communication in therapy
- Authors: Webster, Penny
- Date: 2005
- Subjects: Countertransference (Psychology) Countertransference (Psychology) -- Therapeutic use Communication -- Psychological aspects Psychotherapist and patient Psychoanalysis
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3083 , http://hdl.handle.net/10962/d1002592
- Description: Psychoanalysis as it exists today is not constituted by a single theoretical framework describing pathology and indicating a specific set of interventions. Since Freud originally conceptualised psychoanalytic understanding of pathology and psychoanalysis as a mode of intervention, there have been many revisions and reformulations of his theory. This thesis has attempted to integrate some psychoanalytic ideas regarding personality formation, psychopathology and psychotherapeutic intervention (Fairbairn, 1952; Ogden, 1992, 1994), with interpersonal (strategic / structural) ideas regarding intervention (Minuchin, 1974; Sullivan, 1940, 1953, 1964). In order to do so, the thesis used the relational psychoanalytic perspective, as depicted by Aron (1996) and Mitchell and Aron (1999), as an overarching conceptual framework. The focus from these points of view is the patient's internalized relationship patterns and the therapist's participation in their repetition. It is held that internalized relationship patterns are not only based on, but can be changed by, lived experience. From this perspective, the goal of therapy is to enhance the patient's capacity to reflect and think about experience, and therefore, to communicate about it. This means a change in the patient's predominant mode of communication. Ogden's (1994) modes of communication were described. The thesis suggested that Ogden's modes of communication can be stretched or translated into the types of communication outlined by Langs (1978). This thesis aimed to explore the deliberate use of countertransference responses to facilitate communication in the beginning stages of therapy with patients functioning predominantly in the paranoid-schizoid mode (Ogden, 1992). Patients who operate in this mode are often unable to tolerate interpretation and therefore traditional approaches to intervention are not effective. A "strategic / structural relational psychoanalytic" approach to treatment was proposed. It was suggested that therapists utilize joining and accommodation techniques as described by Minuchin (1974) and alter their style of interaction to match that of the various object relational constellations that they have managed to identify within the patient via their countertransference responses. It was hypothesized that patients need their therapists to be similar to their original objects in order to feel safe in the therapeutic environment and that this may facilitate communication in the beginning stages of therapy. The research utilized a qualitative research approach. Qualitative research methods attempt to use data gathered phenomenologically, always acknowledging the researcher's biases when gathering the data. The data gathered is then interpreted according to various theories or hermeneutic lenses. The hypothesis mentioned above has been investigated by analyzing three cases in terms of the research questions based on Langs' (1978) classification of communication. The thesis described the difficulties inherent in collecting clinical data from psychologists working from within a psychoanalytic framework. Eventually three sets of therapy details and verbatim therapy transcripts were obtained, provided in the thesis and analyzed in terms of the research questions. However evidence for the success of the hypothesized alternate approach was not found in this research study. It was suggested that other possible methods might be useful to investigate the hypothesized approach further.
- Full Text:
- Date Issued: 2005
- Authors: Webster, Penny
- Date: 2005
- Subjects: Countertransference (Psychology) Countertransference (Psychology) -- Therapeutic use Communication -- Psychological aspects Psychotherapist and patient Psychoanalysis
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3083 , http://hdl.handle.net/10962/d1002592
- Description: Psychoanalysis as it exists today is not constituted by a single theoretical framework describing pathology and indicating a specific set of interventions. Since Freud originally conceptualised psychoanalytic understanding of pathology and psychoanalysis as a mode of intervention, there have been many revisions and reformulations of his theory. This thesis has attempted to integrate some psychoanalytic ideas regarding personality formation, psychopathology and psychotherapeutic intervention (Fairbairn, 1952; Ogden, 1992, 1994), with interpersonal (strategic / structural) ideas regarding intervention (Minuchin, 1974; Sullivan, 1940, 1953, 1964). In order to do so, the thesis used the relational psychoanalytic perspective, as depicted by Aron (1996) and Mitchell and Aron (1999), as an overarching conceptual framework. The focus from these points of view is the patient's internalized relationship patterns and the therapist's participation in their repetition. It is held that internalized relationship patterns are not only based on, but can be changed by, lived experience. From this perspective, the goal of therapy is to enhance the patient's capacity to reflect and think about experience, and therefore, to communicate about it. This means a change in the patient's predominant mode of communication. Ogden's (1994) modes of communication were described. The thesis suggested that Ogden's modes of communication can be stretched or translated into the types of communication outlined by Langs (1978). This thesis aimed to explore the deliberate use of countertransference responses to facilitate communication in the beginning stages of therapy with patients functioning predominantly in the paranoid-schizoid mode (Ogden, 1992). Patients who operate in this mode are often unable to tolerate interpretation and therefore traditional approaches to intervention are not effective. A "strategic / structural relational psychoanalytic" approach to treatment was proposed. It was suggested that therapists utilize joining and accommodation techniques as described by Minuchin (1974) and alter their style of interaction to match that of the various object relational constellations that they have managed to identify within the patient via their countertransference responses. It was hypothesized that patients need their therapists to be similar to their original objects in order to feel safe in the therapeutic environment and that this may facilitate communication in the beginning stages of therapy. The research utilized a qualitative research approach. Qualitative research methods attempt to use data gathered phenomenologically, always acknowledging the researcher's biases when gathering the data. The data gathered is then interpreted according to various theories or hermeneutic lenses. The hypothesis mentioned above has been investigated by analyzing three cases in terms of the research questions based on Langs' (1978) classification of communication. The thesis described the difficulties inherent in collecting clinical data from psychologists working from within a psychoanalytic framework. Eventually three sets of therapy details and verbatim therapy transcripts were obtained, provided in the thesis and analyzed in terms of the research questions. However evidence for the success of the hypothesized alternate approach was not found in this research study. It was suggested that other possible methods might be useful to investigate the hypothesized approach further.
- Full Text:
- Date Issued: 2005
Animal suffering in factory farming and the best way to prevent it
- Authors: Watkins, Gareth
- Date: 2005
- Subjects: Vegetarianism -- Moral and ethical aspects Food animals -- Moral and ethical aspects Animal rights Animal welfare Animal welfare -- Moral and ethical aspects Vegetarianism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2728 , http://hdl.handle.net/10962/d1003736
- Description: This thesis moves beyond the traditional approaches of how we ought to treat animals, and instead concentrates on the best strategy for preventing animal suffering in the farming industry. Chapter 1 considers the question of how we can know that animals feel pain, and concludes not only that it is rational to believe that they can, but also that this is a significant fact. Chapter 2 then analyses one possible strategy for helping to prevent animal suffering, namely demi-vegetarianism. For a number of reasons, however, this strategy is found to be flawed, therefore Chapter 3 analyses a second possible strategy, namely vegetarianism, and concludes that this is, in fact, the best strategy for helping to prevent animal suffering in the farming industry.
- Full Text:
- Date Issued: 2005
- Authors: Watkins, Gareth
- Date: 2005
- Subjects: Vegetarianism -- Moral and ethical aspects Food animals -- Moral and ethical aspects Animal rights Animal welfare Animal welfare -- Moral and ethical aspects Vegetarianism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2728 , http://hdl.handle.net/10962/d1003736
- Description: This thesis moves beyond the traditional approaches of how we ought to treat animals, and instead concentrates on the best strategy for preventing animal suffering in the farming industry. Chapter 1 considers the question of how we can know that animals feel pain, and concludes not only that it is rational to believe that they can, but also that this is a significant fact. Chapter 2 then analyses one possible strategy for helping to prevent animal suffering, namely demi-vegetarianism. For a number of reasons, however, this strategy is found to be flawed, therefore Chapter 3 analyses a second possible strategy, namely vegetarianism, and concludes that this is, in fact, the best strategy for helping to prevent animal suffering in the farming industry.
- Full Text:
- Date Issued: 2005
The exploration of the impact of state ownership on Uganda's New Vision Newspaper's social role
- Authors: Wasswa, John Baptist
- Date: 2005
- Subjects: New Vision (Uganda) , Government and the press -- Uganda , Press and politics -- Uganda , Newspaper publishing -- Uganda
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3493 , http://hdl.handle.net/10962/d1002948 , New Vision (Uganda) , Government and the press -- Uganda , Press and politics -- Uganda , Newspaper publishing -- Uganda
- Description: The global trends of democratisation and privatisation that swept much of the developing world in the 1980s and 1990s led to significant changes in the conceptualisation, organisation and performance of the media. In Africa democratisation attained a new meaning with associated processes of liberalisation of broadcasting to end the monopoly of broadcasting by the state. The private media of the liberalised market is increasingly putting the public media system, both broadcast and print, under serious competition, and forcing them to adjust to changing circumstances. The New Vision newspaper in Uganda is one such public service media organisations that are owned by the state and yet have to compete in the new more democratic and liberalised environment. This study set out to explore the extent to which state-ownership impacts on The New Vision’s social role. Using both qualitative and quantitative methods of date collection, I have established the that although The New Vision is a public service medium for which government remains the major source of news, it does not in most cases give the state more or preferentially prominent coverage at the expense of other interest groups in society. On contrary, basing of the amount of coverage of civil society I established that The New Vision enabled the various groups public sphere to interact. The newspaper to an extent also plays the democratic role of monitoring government although there was little evidence of monitoring of corporate abuse. The nature of The New Vision Statute, and the global trends that have changed the conduct of official and private business, have rendered the theories on the 1980s’ development media theories increasingly inapplicable, forcing The New Vision to develop its own version of development journalism that is socially relevant. The study recommends that whereas much of The New Vision Statute is progressive, sections of it should be removed to protect the newspaper from being manipulated by government functionaries, if the it is to continue enabling the public sphere. The newspaper should also increase its monitoring of corporate abuse, and make internal reforms to improve the coverage of development related issues.
- Full Text:
- Date Issued: 2005
- Authors: Wasswa, John Baptist
- Date: 2005
- Subjects: New Vision (Uganda) , Government and the press -- Uganda , Press and politics -- Uganda , Newspaper publishing -- Uganda
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3493 , http://hdl.handle.net/10962/d1002948 , New Vision (Uganda) , Government and the press -- Uganda , Press and politics -- Uganda , Newspaper publishing -- Uganda
- Description: The global trends of democratisation and privatisation that swept much of the developing world in the 1980s and 1990s led to significant changes in the conceptualisation, organisation and performance of the media. In Africa democratisation attained a new meaning with associated processes of liberalisation of broadcasting to end the monopoly of broadcasting by the state. The private media of the liberalised market is increasingly putting the public media system, both broadcast and print, under serious competition, and forcing them to adjust to changing circumstances. The New Vision newspaper in Uganda is one such public service media organisations that are owned by the state and yet have to compete in the new more democratic and liberalised environment. This study set out to explore the extent to which state-ownership impacts on The New Vision’s social role. Using both qualitative and quantitative methods of date collection, I have established the that although The New Vision is a public service medium for which government remains the major source of news, it does not in most cases give the state more or preferentially prominent coverage at the expense of other interest groups in society. On contrary, basing of the amount of coverage of civil society I established that The New Vision enabled the various groups public sphere to interact. The newspaper to an extent also plays the democratic role of monitoring government although there was little evidence of monitoring of corporate abuse. The nature of The New Vision Statute, and the global trends that have changed the conduct of official and private business, have rendered the theories on the 1980s’ development media theories increasingly inapplicable, forcing The New Vision to develop its own version of development journalism that is socially relevant. The study recommends that whereas much of The New Vision Statute is progressive, sections of it should be removed to protect the newspaper from being manipulated by government functionaries, if the it is to continue enabling the public sphere. The newspaper should also increase its monitoring of corporate abuse, and make internal reforms to improve the coverage of development related issues.
- Full Text:
- Date Issued: 2005
Impacts of wildlife and cattle grazing on spider (araneae) biodiversity in a highland savanna ecosystem, in Laikipia, Central Kenya
- Authors: Warui, Charles Mwaura
- Date: 2005
- Subjects: Spiders -- Kenya Environmental monitoring -- Kenya Savanna ecology -- Kenya Biodiversity -- Kenya Species diversity -- Kenya Wildlife management -- Kenya Herbivores -- Ecology -- Kenya
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5712 , http://hdl.handle.net/10962/d1005398
- Description: Spiders were sampled at Mpala Research Centre, Laikipia, Kenya by pitfall-trapping and sweep-netting from May 2001 to July 2002, at a Kenyan Long-term Exclosure Experiment. The aim was to establish species composition, checklist and examine spider responses to disturbances caused by cattle, megaherbivores (giraffe and elephants) and mesoherbivores (other ungulates) by looking at three levels of resolution, namely the overall community, guilds and individual species. This is the first controlled replicated experimental study on the effects on invertebrates (spiders) by different land uses (access by large herbivores). A total of 10,487 individuals from 132 species belonging to 30 families were recorded. The family Salticidae had the highest number of species (24), followed by Gnaphosidae (20), Araneidae and Lycosidae (15 each), Theridiidae and Thomisidae (8 each) and Zodariidae (4). Most of the other families had fewer than 4 species. Throughout the study period, species not previously sampled emerged after rainfall peaks. Exclosure treatments affected plant cover, spider diversity and total species mainly through the effects of cattle, whose presence significantly reduced relative vegetation cover. An increase in vegetation cover significantly increased the diversity, total species and species evenness of the overall spider community (total samples data set). Megaherbivores and mesoherbivores had no effects on overall spider diversity. Relative vegetation cover explained approximately 20-30% of variation in community diversity, species richness and species evenness. At the guild level of resolution, the exclosure treatments had no significant effects on diversity, species richness and species evenness of web builders, plant wanderers and ground wanderers. Plant wanderers were significantly and positively correlated with relative vegetation cover, which explained 17% of variation in their diversity. Six individual species responded strongly and in contrasting ways to the same environmental variables, indicating that this level was more sensitive to environmental changes than guilds or the overall spider community. Spider diversity, relative vegetation cover and rainfall varied at a temporal scale of months and not at a spatial scale of hundreds of metres. Only species diversity and species richness from sweep-netting samples and total species from pitfall-trapping varied significantly at a spatial scale of hundreds of metres. Ordination analysis revealed that sweep-netting samples were a better indicator of grazing impacts than pitfalltrapping or combined samples and grouped to reflect cattle grazing, non-cattle grazing and to a small extent the control treatments. Other ordination analyses showed that only samples from sweep-netting and not from pitfall-trapping, were spatially partitioned at a scale of hundreds of metres. This study concludes that the spider fauna of black cotton soil habitats is rich and useful for environmental monitoring and that monitoring of several individual species as indicator of grazing impacts in savanna could be useful and relatively easy.
- Full Text:
- Date Issued: 2005
- Authors: Warui, Charles Mwaura
- Date: 2005
- Subjects: Spiders -- Kenya Environmental monitoring -- Kenya Savanna ecology -- Kenya Biodiversity -- Kenya Species diversity -- Kenya Wildlife management -- Kenya Herbivores -- Ecology -- Kenya
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5712 , http://hdl.handle.net/10962/d1005398
- Description: Spiders were sampled at Mpala Research Centre, Laikipia, Kenya by pitfall-trapping and sweep-netting from May 2001 to July 2002, at a Kenyan Long-term Exclosure Experiment. The aim was to establish species composition, checklist and examine spider responses to disturbances caused by cattle, megaherbivores (giraffe and elephants) and mesoherbivores (other ungulates) by looking at three levels of resolution, namely the overall community, guilds and individual species. This is the first controlled replicated experimental study on the effects on invertebrates (spiders) by different land uses (access by large herbivores). A total of 10,487 individuals from 132 species belonging to 30 families were recorded. The family Salticidae had the highest number of species (24), followed by Gnaphosidae (20), Araneidae and Lycosidae (15 each), Theridiidae and Thomisidae (8 each) and Zodariidae (4). Most of the other families had fewer than 4 species. Throughout the study period, species not previously sampled emerged after rainfall peaks. Exclosure treatments affected plant cover, spider diversity and total species mainly through the effects of cattle, whose presence significantly reduced relative vegetation cover. An increase in vegetation cover significantly increased the diversity, total species and species evenness of the overall spider community (total samples data set). Megaherbivores and mesoherbivores had no effects on overall spider diversity. Relative vegetation cover explained approximately 20-30% of variation in community diversity, species richness and species evenness. At the guild level of resolution, the exclosure treatments had no significant effects on diversity, species richness and species evenness of web builders, plant wanderers and ground wanderers. Plant wanderers were significantly and positively correlated with relative vegetation cover, which explained 17% of variation in their diversity. Six individual species responded strongly and in contrasting ways to the same environmental variables, indicating that this level was more sensitive to environmental changes than guilds or the overall spider community. Spider diversity, relative vegetation cover and rainfall varied at a temporal scale of months and not at a spatial scale of hundreds of metres. Only species diversity and species richness from sweep-netting samples and total species from pitfall-trapping varied significantly at a spatial scale of hundreds of metres. Ordination analysis revealed that sweep-netting samples were a better indicator of grazing impacts than pitfalltrapping or combined samples and grouped to reflect cattle grazing, non-cattle grazing and to a small extent the control treatments. Other ordination analyses showed that only samples from sweep-netting and not from pitfall-trapping, were spatially partitioned at a scale of hundreds of metres. This study concludes that the spider fauna of black cotton soil habitats is rich and useful for environmental monitoring and that monitoring of several individual species as indicator of grazing impacts in savanna could be useful and relatively easy.
- Full Text:
- Date Issued: 2005