Mesozooplankton community structure in the vicinity of the Prince Edward Islands (Southern Ocean) 37⁰ 50'E, 46⁰ 45'S
- Authors: Hunt, Brian Peter Vere
- Date: 2000
- Subjects: Zooplankton , Zooplankton -- Prince Edward Islands , Phytoplankton , Chlorophyll
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5732 , http://hdl.handle.net/10962/d1005418 , Zooplankton , Zooplankton -- Prince Edward Islands , Phytoplankton , Chlorophyll
- Description: Mesozooplankton community structure in the vicinity of the Prince Edward Islands (PEIs) was investigated during six surveys conducted in late austral summer (April/May), 1996 to 1999. Each year zooplankton samples were collected with a bongo net (300 µm mesh) at stations upstream (west), between and downstream (east) of the islands. Chlorophyll a concentrations were determined fluorometrically, corresponding with each net tow. The positions of the Subantarctic Front (SAF) and the Antarctic Polar Front (APF), in relation to the islands in the upstream region, were determined by a line of CTD and/or XBT stations. Both the SAF and the APF were characterised by a high degree of meridional variation in position. Changes in position of the fronts were shown to occur very rapidly. In 1999 the APF moved southwards by ~40nm and the SAF northwards by ~60nm in a period of two weeks, while in 1996 the SAF appeared to move ~120nm northwards in a two week period. The positions of the SAF and APF appeared to have a significant impact on phytoplankton biomass in the vicinity of the PEIs, through the alteration of local flow dynamics. Water retention in 1996, associated with the location of the SAF and APF far to the north and south of the PEIs respectively, corresponded with high chlorophyll a concentrations in the inter-island region (reaching 1.54 mg.m^(-3)). When the fronts were close to the islands, in 1997 and 1999, and a flow through environment existed, chlorophyll a concentrations in the inter-island region were comparatively low. Although biomass enhancement was only observed at the SAF in 1996, phytoplankton size structure in 1999 indicated that, when close to the PEIs, frontal production may be transported to the island system. This is potentially an important source of allochthonous input into the island system. Zooplankton assemblages were a mix of sub-Antarctic and Antarctic communities, with a weak presence of sub-tropical species. Cluster analysis showed that during each survey the region in the vicinity of the PEIs was divided into different, spatially separated zooplankton communities, associated with water masses of different origins. These communities were identified by variations in the abundance and biomass of species rather than variation in species composition and, in general, there was a relatively high degree of similarity both within and between surveys. Inter-annual community analysis revealed that, in many cases, there was greater similarity between communities from different years than communities within years, indicating that short-term variability exceeded inter-annual variability. Multiple regression analysis showed that the major correlate with zooplankton community structure during all surveys was sea temperature, accounting for as much as 77% of the variation in community structure. Temperature was indicative of the relative contribution of sub-Antarctic and Antarctic communities, with low temperatures being characterised by an increased predominance of Antarctic communities and vice versa. The differentiation between sub-Antarctic and Antarctic waters, and their respective communities, was particularly pronounced when the SAF and APF were in close proximity to the islands. Surface salinity and sounding had limited effect on community structure. The affect of sounding was intrinsically related to zooplankton interaction with the island ecosystem. Predation by the islands' land based predators and benthic fish appears to decrease zooplankton biomass over the island shelf, particularly the macrozooplankton size fraction. However, this may only be an important factor under conditions of water retention when replenishment of zooplankton stocks is low. The low densities of many macrozooplankton species, and other deep migrators, on the island shelf may be due to their limited advection onto shallow topography. By contrast, there are indications that zooplankton species occurring at shallower depths may be concentrated in the inter-island region by mesoscale flow patterns. Analysis of the population structure of the copepod Calanus simillimus showed that this species occurred at different stages in its life cycle during different years, even though sampling took place in the same calendar months, indicating that there was inter-annual variation in the timing of the biological season. Differences in the population structure of species, and consequently their contribution to abundance and biomass, may therefore have been an important contributor to inter-annual variation in community structure. Evidence is provided for a long-term trend of southward movement of the SAF. This may have a significant affect on the PEI ecosystem, increasing the proportion of allochthonous input and altering the tropho-dynamics of the island ecosystem
- Full Text:
- Authors: Hunt, Brian Peter Vere
- Date: 2000
- Subjects: Zooplankton , Zooplankton -- Prince Edward Islands , Phytoplankton , Chlorophyll
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5732 , http://hdl.handle.net/10962/d1005418 , Zooplankton , Zooplankton -- Prince Edward Islands , Phytoplankton , Chlorophyll
- Description: Mesozooplankton community structure in the vicinity of the Prince Edward Islands (PEIs) was investigated during six surveys conducted in late austral summer (April/May), 1996 to 1999. Each year zooplankton samples were collected with a bongo net (300 µm mesh) at stations upstream (west), between and downstream (east) of the islands. Chlorophyll a concentrations were determined fluorometrically, corresponding with each net tow. The positions of the Subantarctic Front (SAF) and the Antarctic Polar Front (APF), in relation to the islands in the upstream region, were determined by a line of CTD and/or XBT stations. Both the SAF and the APF were characterised by a high degree of meridional variation in position. Changes in position of the fronts were shown to occur very rapidly. In 1999 the APF moved southwards by ~40nm and the SAF northwards by ~60nm in a period of two weeks, while in 1996 the SAF appeared to move ~120nm northwards in a two week period. The positions of the SAF and APF appeared to have a significant impact on phytoplankton biomass in the vicinity of the PEIs, through the alteration of local flow dynamics. Water retention in 1996, associated with the location of the SAF and APF far to the north and south of the PEIs respectively, corresponded with high chlorophyll a concentrations in the inter-island region (reaching 1.54 mg.m^(-3)). When the fronts were close to the islands, in 1997 and 1999, and a flow through environment existed, chlorophyll a concentrations in the inter-island region were comparatively low. Although biomass enhancement was only observed at the SAF in 1996, phytoplankton size structure in 1999 indicated that, when close to the PEIs, frontal production may be transported to the island system. This is potentially an important source of allochthonous input into the island system. Zooplankton assemblages were a mix of sub-Antarctic and Antarctic communities, with a weak presence of sub-tropical species. Cluster analysis showed that during each survey the region in the vicinity of the PEIs was divided into different, spatially separated zooplankton communities, associated with water masses of different origins. These communities were identified by variations in the abundance and biomass of species rather than variation in species composition and, in general, there was a relatively high degree of similarity both within and between surveys. Inter-annual community analysis revealed that, in many cases, there was greater similarity between communities from different years than communities within years, indicating that short-term variability exceeded inter-annual variability. Multiple regression analysis showed that the major correlate with zooplankton community structure during all surveys was sea temperature, accounting for as much as 77% of the variation in community structure. Temperature was indicative of the relative contribution of sub-Antarctic and Antarctic communities, with low temperatures being characterised by an increased predominance of Antarctic communities and vice versa. The differentiation between sub-Antarctic and Antarctic waters, and their respective communities, was particularly pronounced when the SAF and APF were in close proximity to the islands. Surface salinity and sounding had limited effect on community structure. The affect of sounding was intrinsically related to zooplankton interaction with the island ecosystem. Predation by the islands' land based predators and benthic fish appears to decrease zooplankton biomass over the island shelf, particularly the macrozooplankton size fraction. However, this may only be an important factor under conditions of water retention when replenishment of zooplankton stocks is low. The low densities of many macrozooplankton species, and other deep migrators, on the island shelf may be due to their limited advection onto shallow topography. By contrast, there are indications that zooplankton species occurring at shallower depths may be concentrated in the inter-island region by mesoscale flow patterns. Analysis of the population structure of the copepod Calanus simillimus showed that this species occurred at different stages in its life cycle during different years, even though sampling took place in the same calendar months, indicating that there was inter-annual variation in the timing of the biological season. Differences in the population structure of species, and consequently their contribution to abundance and biomass, may therefore have been an important contributor to inter-annual variation in community structure. Evidence is provided for a long-term trend of southward movement of the SAF. This may have a significant affect on the PEI ecosystem, increasing the proportion of allochthonous input and altering the tropho-dynamics of the island ecosystem
- Full Text:
Methods for designing and optimizing fuzzy controllers
- Authors: Swartz, Andre Michael
- Date: 2000
- Subjects: Fuzzy sets , Fuzzy systems , Automatic control
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5412 , http://hdl.handle.net/10962/d1005226 , Fuzzy sets , Fuzzy systems , Automatic control
- Description: We start by discussing fuzzy sets and the algebra of fuzzy sets. We consider some properties of fuzzy modeling tools. This is followed by considering the Mamdani and Sugeno models for designing fuzzy controllers. Various methods for using sets of data for desining controllers are discussed. This is followed by a chapter illustrating the use of genetic algorithms in designing and optimizing fuzzy controllers.Finally we look at some previous applications of fuzzy control in telecommunication networks, and illustrate a simple application that was developed as part of the present work.
- Full Text:
- Authors: Swartz, Andre Michael
- Date: 2000
- Subjects: Fuzzy sets , Fuzzy systems , Automatic control
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5412 , http://hdl.handle.net/10962/d1005226 , Fuzzy sets , Fuzzy systems , Automatic control
- Description: We start by discussing fuzzy sets and the algebra of fuzzy sets. We consider some properties of fuzzy modeling tools. This is followed by considering the Mamdani and Sugeno models for designing fuzzy controllers. Various methods for using sets of data for desining controllers are discussed. This is followed by a chapter illustrating the use of genetic algorithms in designing and optimizing fuzzy controllers.Finally we look at some previous applications of fuzzy control in telecommunication networks, and illustrate a simple application that was developed as part of the present work.
- Full Text:
Microemulsions : a new perspective in the treatment of paediatric and geriatric tuberculosis patients
- Authors: Wisch, Michael Henry
- Date: 2000
- Subjects: Emulsions (Pharmacy) , Tuberculosis -- Treatment -- South Africa , Tuberculosis in children -- Treatment , Tuberculosis in old age -- Treatment , Tuberculosis -- Treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3805 , http://hdl.handle.net/10962/d1003283 , Emulsions (Pharmacy) , Tuberculosis -- Treatment -- South Africa , Tuberculosis in children -- Treatment , Tuberculosis in old age -- Treatment , Tuberculosis -- Treatment
- Description: Tuberculosis(TB) was declared to be a global emergency in 1993, with South Africa declaring it to be the country’s top health priority in 1996, but ineffective treatment strategies have led to fewer than half of all treated patients in South Africa being cured. At present,paediatric treatment remains a problem, as the antitubercular preparations of rifampicin, isoniazid and pyrazinamide, that are currently available, were not initially designed for the treatment of paediatric TB patients, providing a motivation for this project. The aim of this project is thus the development of a microemulsion dosage form for the oral delivery of RIF(Rifampicin), INH(Isoniazid) and PZA(Pyrazinamide) in combination. RIF, INH and PZA were adequately characterised with reference to the monograph standards referenced and were found to be sufficiently pure to be used in subsequent work. A chromatographic system and conditions were selected and validated as being optimal for HPLC analysis of RIF, INH and PZA in combination, with a drug partitioning method for miglyol 812 developed and validated. Ternary and pseudo-ternary phase diagrams were constructed and reported, all employing miglyol 812 as the lipid. It was undoubtedly the imwitor 308 and crillet 3 combination o/w microemulsion system that proved most successful, maintaining homogeneity on dilution. The microemulsion used in formulation comprised imwitor 308 (27.63%), crillet 3 (27.63%), miglyol 812 23.68%) and water (21.06%). The stability of RIF, INH and PZA was investigated in aqueous solution, miglyol 812, corn oil, 10%m/v cremophor RH, 5%m/v imwitor 308, 10%m/v crillet 3 and 70%m/v sorbitol solution. Trends in the stability assessments conducted on RIF, INH and PZA were noted, with slight variation depending on the formulation component being evaluated. RIF invariably demonstrated temperature and oxidation dependent degradation in all vehicles, with a definite distinction possible between samples stored at 25, 40 and 600C over a 7 day trial period. A definite advantage of storing RIF solutions under nitrogen was observed, with these solutions showing less degradation over the course of the trial, than those stored under air. INH produced a pronounced increase in the degree of degradation of RIF, whereas PZA had a negligible effect on it’s stability. INH proved to be most stable in the 70%m/v sorbitol solution with no significant oxidation or temperature dependent degradation indicated. Temperature dependent degradation was only noticable when INH was in combination with RIF, most significant in crillet 3 solution. PZA was the most stable of the three drugs, remaining relatively unaffected by temperature and the presence of air, independent of the vehicle employed, although the drug remaining did decrease slightly in the presence of RIF.Due to drug dose specifications and solubility limitations, the final formulation assessed, only contained RIF and INH, despite INH and PZA having no significant effect on the stability of each other. The solubility of PZA in the lipid and aqueous components of the microemulsion was not great enough to achieve the required 500 mg/10ml dose, while RIF and INH could achieve the respective 150mg/10ml and 100mg/10ml dose. RIF stability was improved, as anticipated, with the incorporation of RIF into the internal phase decreasing contact with INH which has been shown to affect it’s stability. RIF behaved as predicted, possessing greater stability than shown in the individual formulation components, however, INH did not, being less stable in formulation in the absence of antioxidant, than in it’s presence. A novel microemulsion formulation capable of delivering the incompatible RIF and INH in combination, with numerous microemulsion systems mapped,with the ability of being used for the delivery of other lipophilic drugs and drug combinations, was produced.The final formulation provided valuable information into possible future improvements of the microemulsion to improve drug stability.
- Full Text:
- Authors: Wisch, Michael Henry
- Date: 2000
- Subjects: Emulsions (Pharmacy) , Tuberculosis -- Treatment -- South Africa , Tuberculosis in children -- Treatment , Tuberculosis in old age -- Treatment , Tuberculosis -- Treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3805 , http://hdl.handle.net/10962/d1003283 , Emulsions (Pharmacy) , Tuberculosis -- Treatment -- South Africa , Tuberculosis in children -- Treatment , Tuberculosis in old age -- Treatment , Tuberculosis -- Treatment
- Description: Tuberculosis(TB) was declared to be a global emergency in 1993, with South Africa declaring it to be the country’s top health priority in 1996, but ineffective treatment strategies have led to fewer than half of all treated patients in South Africa being cured. At present,paediatric treatment remains a problem, as the antitubercular preparations of rifampicin, isoniazid and pyrazinamide, that are currently available, were not initially designed for the treatment of paediatric TB patients, providing a motivation for this project. The aim of this project is thus the development of a microemulsion dosage form for the oral delivery of RIF(Rifampicin), INH(Isoniazid) and PZA(Pyrazinamide) in combination. RIF, INH and PZA were adequately characterised with reference to the monograph standards referenced and were found to be sufficiently pure to be used in subsequent work. A chromatographic system and conditions were selected and validated as being optimal for HPLC analysis of RIF, INH and PZA in combination, with a drug partitioning method for miglyol 812 developed and validated. Ternary and pseudo-ternary phase diagrams were constructed and reported, all employing miglyol 812 as the lipid. It was undoubtedly the imwitor 308 and crillet 3 combination o/w microemulsion system that proved most successful, maintaining homogeneity on dilution. The microemulsion used in formulation comprised imwitor 308 (27.63%), crillet 3 (27.63%), miglyol 812 23.68%) and water (21.06%). The stability of RIF, INH and PZA was investigated in aqueous solution, miglyol 812, corn oil, 10%m/v cremophor RH, 5%m/v imwitor 308, 10%m/v crillet 3 and 70%m/v sorbitol solution. Trends in the stability assessments conducted on RIF, INH and PZA were noted, with slight variation depending on the formulation component being evaluated. RIF invariably demonstrated temperature and oxidation dependent degradation in all vehicles, with a definite distinction possible between samples stored at 25, 40 and 600C over a 7 day trial period. A definite advantage of storing RIF solutions under nitrogen was observed, with these solutions showing less degradation over the course of the trial, than those stored under air. INH produced a pronounced increase in the degree of degradation of RIF, whereas PZA had a negligible effect on it’s stability. INH proved to be most stable in the 70%m/v sorbitol solution with no significant oxidation or temperature dependent degradation indicated. Temperature dependent degradation was only noticable when INH was in combination with RIF, most significant in crillet 3 solution. PZA was the most stable of the three drugs, remaining relatively unaffected by temperature and the presence of air, independent of the vehicle employed, although the drug remaining did decrease slightly in the presence of RIF.Due to drug dose specifications and solubility limitations, the final formulation assessed, only contained RIF and INH, despite INH and PZA having no significant effect on the stability of each other. The solubility of PZA in the lipid and aqueous components of the microemulsion was not great enough to achieve the required 500 mg/10ml dose, while RIF and INH could achieve the respective 150mg/10ml and 100mg/10ml dose. RIF stability was improved, as anticipated, with the incorporation of RIF into the internal phase decreasing contact with INH which has been shown to affect it’s stability. RIF behaved as predicted, possessing greater stability than shown in the individual formulation components, however, INH did not, being less stable in formulation in the absence of antioxidant, than in it’s presence. A novel microemulsion formulation capable of delivering the incompatible RIF and INH in combination, with numerous microemulsion systems mapped,with the ability of being used for the delivery of other lipophilic drugs and drug combinations, was produced.The final formulation provided valuable information into possible future improvements of the microemulsion to improve drug stability.
- Full Text:
Minimal motion capture with inverse kinematics for articulated human figure animation
- Authors: Casanueva, Luis
- Date: 2000
- Subjects: Virtual reality , Image processing -- Digital techniques
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4620 , http://hdl.handle.net/10962/d1006485 , Virtual reality , Image processing -- Digital techniques
- Description: Animating an articulated figure usually requires expensive hardware in terms of motion capture equipment, processing power and rendering power. This implies a high cost system and thus eliminates the use of personal computers to drive avatars in virtual environments. We propose a system to animate an articulated human upper body in real-time, using minimal motion capture trackers to provide position and orientation for the limbs. The system has to drive an avatar in a virtual environment on a low-end computer. The cost of the motion capture equipment must be relatively low (hence the use of minimal trackers). We discuss the various types of motion capture equipment and decide to use electromagnetic trackers which are adequate for our requirements while being reasonably priced. We also discuss the use of inverse kinematics to solve for the articulated chains making up the topology of the articulated figure. Furthermore, we offer a method to describe articulated chains as well as a process to specify the reach of up to four link chains with various levels of redundancy for use in articulated figures. We then provide various types of constraints to reduce the redundancy of non-defined articulated chains, specifically for chains found in an articulated human upper body. Such methods include a way to solve for the redundancy in the orientation of the neck link, as well as three different methods to solve the redundancy of the articulated human arm. The first method involves eliminating a degree of freedom from the chain, thus reducing its redundancy. The second method calculates the elevation angle of the elbow position from the elevation angle of the hand. The third method determines the actual position of the elbow from an average of previous positions of the elbow according to the position and orientation of the hand. The previous positions of the elbow are captured during the calibration process. The redundancy of the neck is easily solved due to the small amount of redundancy in the chain. When solving the arm, the first method which should give a perfect result in theory, gives a poor result in practice due to the limitations of both the motion capture equipment and the design. The second method provides an adequate result for the position of the redundant elbow in most cases although fails in some cases. Still it benefits from a simple approach as well as very little need for calibration. The third method provides the most accurate method of the three for the position of the redundant elbow although it also fails in some cases. This method however requires a long calibration session for each user. The last two methods allow for the calibration data to be used in latter session, thus reducing considerably the calibration required. In combination with a virtual reality system, these processes allow for the real-time animation of an articulated figure to drive avatars in virtual environments or for low quality animation on a low-end computer.
- Full Text:
- Authors: Casanueva, Luis
- Date: 2000
- Subjects: Virtual reality , Image processing -- Digital techniques
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4620 , http://hdl.handle.net/10962/d1006485 , Virtual reality , Image processing -- Digital techniques
- Description: Animating an articulated figure usually requires expensive hardware in terms of motion capture equipment, processing power and rendering power. This implies a high cost system and thus eliminates the use of personal computers to drive avatars in virtual environments. We propose a system to animate an articulated human upper body in real-time, using minimal motion capture trackers to provide position and orientation for the limbs. The system has to drive an avatar in a virtual environment on a low-end computer. The cost of the motion capture equipment must be relatively low (hence the use of minimal trackers). We discuss the various types of motion capture equipment and decide to use electromagnetic trackers which are adequate for our requirements while being reasonably priced. We also discuss the use of inverse kinematics to solve for the articulated chains making up the topology of the articulated figure. Furthermore, we offer a method to describe articulated chains as well as a process to specify the reach of up to four link chains with various levels of redundancy for use in articulated figures. We then provide various types of constraints to reduce the redundancy of non-defined articulated chains, specifically for chains found in an articulated human upper body. Such methods include a way to solve for the redundancy in the orientation of the neck link, as well as three different methods to solve the redundancy of the articulated human arm. The first method involves eliminating a degree of freedom from the chain, thus reducing its redundancy. The second method calculates the elevation angle of the elbow position from the elevation angle of the hand. The third method determines the actual position of the elbow from an average of previous positions of the elbow according to the position and orientation of the hand. The previous positions of the elbow are captured during the calibration process. The redundancy of the neck is easily solved due to the small amount of redundancy in the chain. When solving the arm, the first method which should give a perfect result in theory, gives a poor result in practice due to the limitations of both the motion capture equipment and the design. The second method provides an adequate result for the position of the redundant elbow in most cases although fails in some cases. Still it benefits from a simple approach as well as very little need for calibration. The third method provides the most accurate method of the three for the position of the redundant elbow although it also fails in some cases. This method however requires a long calibration session for each user. The last two methods allow for the calibration data to be used in latter session, thus reducing considerably the calibration required. In combination with a virtual reality system, these processes allow for the real-time animation of an articulated figure to drive avatars in virtual environments or for low quality animation on a low-end computer.
- Full Text:
Minor "dings" - major effects? a study into the cognitive effects of mild head injuries in high school rugby
- Authors: Ackermann, Tessa Ruth
- Date: 2000
- Subjects: Rugby football injuries , Head -- Wounds and injuries -- Psychology , Head -- Wounds and injuries -- Complications , Head -- Wounds and injuries -- Patients -- Rehabilitation
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2920 , http://hdl.handle.net/10962/d1002429 , Rugby football injuries , Head -- Wounds and injuries -- Psychology , Head -- Wounds and injuries -- Complications , Head -- Wounds and injuries -- Patients -- Rehabilitation
- Description: The present study is part of a larger and ongoing research initiative investigating the cumulative cognitive effects of mild head injury in rugby union and focused specifically on high school rugby players. A comprehensive battery of neuropsychological tests was administered to top team high school rugby players (n = 47), and a non-contact sport control group of top team high school hockey players (n = 34). Direct comparisons of group mean scores and standard deviations across each neuropsychological test were carried out for the Total Rugby group versus the Total Hockey group as well as for the subgroups Rugby Forwards versus Rugby Backs. A correlational analysis was conducted to ascertain whether a relationship exists between the number of mild head injuries reported by the players and their cognitive test performance. Results of the group comparisons of means and variability on WMS Paired Associate Learning Hard Pairs - Delayed Recall provides tentative indications of the initial stages of diffuse damage associated with mild head injury in the rugby group and provides some evidence for impairment of verbal learning and memory in the Rugby Forwards group. The correlational analysis revealed no significant relationship between number of reported mild head injuries and cognitive performance. The findings and possible latent effects of the multiple mild head injuries reported by the rugby players are discussed in terms of brain reserve capacity theory and suggestions for future research are provided.
- Full Text:
- Authors: Ackermann, Tessa Ruth
- Date: 2000
- Subjects: Rugby football injuries , Head -- Wounds and injuries -- Psychology , Head -- Wounds and injuries -- Complications , Head -- Wounds and injuries -- Patients -- Rehabilitation
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2920 , http://hdl.handle.net/10962/d1002429 , Rugby football injuries , Head -- Wounds and injuries -- Psychology , Head -- Wounds and injuries -- Complications , Head -- Wounds and injuries -- Patients -- Rehabilitation
- Description: The present study is part of a larger and ongoing research initiative investigating the cumulative cognitive effects of mild head injury in rugby union and focused specifically on high school rugby players. A comprehensive battery of neuropsychological tests was administered to top team high school rugby players (n = 47), and a non-contact sport control group of top team high school hockey players (n = 34). Direct comparisons of group mean scores and standard deviations across each neuropsychological test were carried out for the Total Rugby group versus the Total Hockey group as well as for the subgroups Rugby Forwards versus Rugby Backs. A correlational analysis was conducted to ascertain whether a relationship exists between the number of mild head injuries reported by the players and their cognitive test performance. Results of the group comparisons of means and variability on WMS Paired Associate Learning Hard Pairs - Delayed Recall provides tentative indications of the initial stages of diffuse damage associated with mild head injury in the rugby group and provides some evidence for impairment of verbal learning and memory in the Rugby Forwards group. The correlational analysis revealed no significant relationship between number of reported mild head injuries and cognitive performance. The findings and possible latent effects of the multiple mild head injuries reported by the rugby players are discussed in terms of brain reserve capacity theory and suggestions for future research are provided.
- Full Text:
Nyau masquerade performance : shifting the imperial gaze
- Authors: Guhrs, Tamara
- Date: 2000
- Subjects: Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2140 , http://hdl.handle.net/10962/d1002372 , Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Description: Nyau Masquerades have been studied by missionaries, anthropologists and religious specialists, but have seldom been documented by theatre and performance specialists. This dissertation argues for the acceptance of Ny au performance as a contemporary world theatre form rooted in tradition. Charting the uneasy relationship between the Nyau and those who have sought to record their performances, the author delineates a vivid dramaturgy of this art form. In doing so, the boundaries of what define theatre as it has traditionally been understood in dominant discourses are made more fluid. Nyau performances have been affected by Colonial processes in varied ways. They were banned by the former government of Northern Rhodesia and severely censored by Catholic Mission teachings in the former Nyasaland. Other forms of vilification have been more subtle. Information about performance in Africa has often been collected and arranged in ways which limit the understanding of these genres. Images of Africa which cluster around the notion of the 'Primitive Other' have enabled a representation of Ny au masking as a superstitious and outdated practice with no relevance for contemporary Africa. This work calls for a new examination of the Nyau, through the lens of local discourse as well as contemporary global understandings of performance. Chapter One examines the issue of primitivism and the ways in which Africa has historically been posited as the exotic Other to Europe. Chapter Two examines the Nyau ih terms of specific dramaturgical elements, adjusting previous misconceptions surrounding the theatr~ forms of Chewa and Nyanja people. Chapter Three is devoted to a discussion of space in ritual theatre and Nyau performance, while Chapter Four explores masking and questions of transformation and liminality. In conclusion, it is seen that the use of the mask is a metaphor for the suspension of rigid boundaries separating subject/object, self/other, ritual/theatre, a suspension which needs to take place before an enriched understanding of performance in Africa can be reached.
- Full Text:
- Authors: Guhrs, Tamara
- Date: 2000
- Subjects: Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2140 , http://hdl.handle.net/10962/d1002372 , Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Description: Nyau Masquerades have been studied by missionaries, anthropologists and religious specialists, but have seldom been documented by theatre and performance specialists. This dissertation argues for the acceptance of Ny au performance as a contemporary world theatre form rooted in tradition. Charting the uneasy relationship between the Nyau and those who have sought to record their performances, the author delineates a vivid dramaturgy of this art form. In doing so, the boundaries of what define theatre as it has traditionally been understood in dominant discourses are made more fluid. Nyau performances have been affected by Colonial processes in varied ways. They were banned by the former government of Northern Rhodesia and severely censored by Catholic Mission teachings in the former Nyasaland. Other forms of vilification have been more subtle. Information about performance in Africa has often been collected and arranged in ways which limit the understanding of these genres. Images of Africa which cluster around the notion of the 'Primitive Other' have enabled a representation of Ny au masking as a superstitious and outdated practice with no relevance for contemporary Africa. This work calls for a new examination of the Nyau, through the lens of local discourse as well as contemporary global understandings of performance. Chapter One examines the issue of primitivism and the ways in which Africa has historically been posited as the exotic Other to Europe. Chapter Two examines the Nyau ih terms of specific dramaturgical elements, adjusting previous misconceptions surrounding the theatr~ forms of Chewa and Nyanja people. Chapter Three is devoted to a discussion of space in ritual theatre and Nyau performance, while Chapter Four explores masking and questions of transformation and liminality. In conclusion, it is seen that the use of the mask is a metaphor for the suspension of rigid boundaries separating subject/object, self/other, ritual/theatre, a suspension which needs to take place before an enriched understanding of performance in Africa can be reached.
- Full Text:
Observations of selective feeding of the aphid, Sitobion yakini (eastop) on leaf blades of barley (Hordeum vulgare L)
- Authors: Matsiliza, Babalwa
- Date: 2000
- Subjects: Aphids , Phloem , Barley
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4212 , http://hdl.handle.net/10962/d1003781 , Aphids , Phloem , Barley
- Description: Penetration of leaves of barley (Hordeum vulgare L.) plants grown under normal conditions and those exposed to physiological stress, by the aphid, Sitobion yakini was investigated using light and electron microscope techniques. This was carried out to determine if there was evidence of preferential feeding on either thin- or thick-walled sieve tubes in the barley leaf. Under both stress and non-stress conditions, preliminary results of an electron microscope investigation showed that penetration of the epidermis and mesophyll was largely intercellular, becoming partly intercellular and in part intracellular inside the vascular bundle. A total of 317 stylets and stylet tracks were encountered during the examination of 2000 serial sections. In non-stressed plant material, 293 (92%) terminated in thin-walled sieve tubes and only 24 (8%) in thick-walled sieve tubes. Investigation of 1000 serial sections using stressed plant material showed, that 84 of 89 (94%) stylets and stylet tracks encountered terminated in thin-walled sieve tubes. Furthermore, 90 of 94 (96%) stylets and stylet tracks encountered in 1000 serial sections from the second experiment of control non-stressed plant material (control) terminated in thin-walled sieve tubes. The thin-walled sieve tubes were significantly more visited (probed) by the aphid than the thick-walled sieve tubes. Under stress conditions, 50 of 89 (56%) stylets and stylet tracks which terminated in thin-walled sieve tubes were associated with the small longitudinal bundles. Under normal conditions, 65 of 94 (69%) stylets and stylet tracks which terminated in thin-walled sieve tubes were associated with the small longitudinal bundles. There were no significant differences on the number of probes of sieve elements between the two treatments. These data suggest that the aphid S. yakini feeds preferentially on the thin-walled sieve tubes of the small longitudinal vascular bundles in plants grown under normal conditions and those exposed to physiological stress, such as water stress. This further suggests that the thin-walled sieve tubes in barley leaf blades are more attractive to the aphid and are probably most functional in terms of phloem loading and transport.
- Full Text:
- Authors: Matsiliza, Babalwa
- Date: 2000
- Subjects: Aphids , Phloem , Barley
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4212 , http://hdl.handle.net/10962/d1003781 , Aphids , Phloem , Barley
- Description: Penetration of leaves of barley (Hordeum vulgare L.) plants grown under normal conditions and those exposed to physiological stress, by the aphid, Sitobion yakini was investigated using light and electron microscope techniques. This was carried out to determine if there was evidence of preferential feeding on either thin- or thick-walled sieve tubes in the barley leaf. Under both stress and non-stress conditions, preliminary results of an electron microscope investigation showed that penetration of the epidermis and mesophyll was largely intercellular, becoming partly intercellular and in part intracellular inside the vascular bundle. A total of 317 stylets and stylet tracks were encountered during the examination of 2000 serial sections. In non-stressed plant material, 293 (92%) terminated in thin-walled sieve tubes and only 24 (8%) in thick-walled sieve tubes. Investigation of 1000 serial sections using stressed plant material showed, that 84 of 89 (94%) stylets and stylet tracks encountered terminated in thin-walled sieve tubes. Furthermore, 90 of 94 (96%) stylets and stylet tracks encountered in 1000 serial sections from the second experiment of control non-stressed plant material (control) terminated in thin-walled sieve tubes. The thin-walled sieve tubes were significantly more visited (probed) by the aphid than the thick-walled sieve tubes. Under stress conditions, 50 of 89 (56%) stylets and stylet tracks which terminated in thin-walled sieve tubes were associated with the small longitudinal bundles. Under normal conditions, 65 of 94 (69%) stylets and stylet tracks which terminated in thin-walled sieve tubes were associated with the small longitudinal bundles. There were no significant differences on the number of probes of sieve elements between the two treatments. These data suggest that the aphid S. yakini feeds preferentially on the thin-walled sieve tubes of the small longitudinal vascular bundles in plants grown under normal conditions and those exposed to physiological stress, such as water stress. This further suggests that the thin-walled sieve tubes in barley leaf blades are more attractive to the aphid and are probably most functional in terms of phloem loading and transport.
- Full Text:
Organisational leaders' perceptions of the challenges and constraints of the leadership development of Blacks in South African private organisations
- Authors: Nyamuda, Paul Andrew
- Date: 2000
- Subjects: Leadership , Black people -- South Africa , Black people -- Employment -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:3033 , http://hdl.handle.net/10962/d1002542 , Leadership , Black people -- South Africa , Black people -- Employment -- South Africa
- Description: In recent years, it has become clear that a lot of corporate collapse can be traced down to poor leadership. As more and more black executives are climbing the corporate ladder, it is becoming all the more necessary to explore how their effective leadership development can occur with private organisations in South Africa. There are many challenges and constraints associated with the leadership development of these executives. This can be expected as they are entering an environment which has been largely white-dominated. As a result they find themselves facing the challenges of succeeding amidst negative perceptions they have experienced from their superiors and subtle pressures from subordinates. Therefore, it can only be expected that if organisations are to maintain a competitive advantage they need to understand how to effectively develop this new breed of leaders. Hence, the researcher has used a qualitative approach to investigate the complexities of the experiences of black executives in private organisations. In terms of the theoretical framework, the research focuses on some of the new approaches to leadership. It was discovered that leadership development is essentially a process that goes beyond mere training sessions, and largely involves the relationships one has within the organisation. This involves relationships with superiors, peers, and subordinates. The research indicates that if these relationships are managed effectively, leadership development is enhanced. Whilst the role of formal training programs appeared somewhat downplayed, it was clear that these programs had a strong role in terms of their psychological impact on participants. They certainly affected their perception of the organisation and their own self-efficacy. The research, therefore illustrates how there are a variety of individual and organisational attributes that form a basis for effective leadership development of blacks in private organisations. The researcher argues that if these are implemented, organisational well-being is enhanced.
- Full Text:
- Authors: Nyamuda, Paul Andrew
- Date: 2000
- Subjects: Leadership , Black people -- South Africa , Black people -- Employment -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:3033 , http://hdl.handle.net/10962/d1002542 , Leadership , Black people -- South Africa , Black people -- Employment -- South Africa
- Description: In recent years, it has become clear that a lot of corporate collapse can be traced down to poor leadership. As more and more black executives are climbing the corporate ladder, it is becoming all the more necessary to explore how their effective leadership development can occur with private organisations in South Africa. There are many challenges and constraints associated with the leadership development of these executives. This can be expected as they are entering an environment which has been largely white-dominated. As a result they find themselves facing the challenges of succeeding amidst negative perceptions they have experienced from their superiors and subtle pressures from subordinates. Therefore, it can only be expected that if organisations are to maintain a competitive advantage they need to understand how to effectively develop this new breed of leaders. Hence, the researcher has used a qualitative approach to investigate the complexities of the experiences of black executives in private organisations. In terms of the theoretical framework, the research focuses on some of the new approaches to leadership. It was discovered that leadership development is essentially a process that goes beyond mere training sessions, and largely involves the relationships one has within the organisation. This involves relationships with superiors, peers, and subordinates. The research indicates that if these relationships are managed effectively, leadership development is enhanced. Whilst the role of formal training programs appeared somewhat downplayed, it was clear that these programs had a strong role in terms of their psychological impact on participants. They certainly affected their perception of the organisation and their own self-efficacy. The research, therefore illustrates how there are a variety of individual and organisational attributes that form a basis for effective leadership development of blacks in private organisations. The researcher argues that if these are implemented, organisational well-being is enhanced.
- Full Text:
Physiological, perceptual and other performance decrements in combat related tasks following prolonged heavy-load marching
- Authors: Clark, Lisa Anne
- Date: 2000
- Subjects: Performance -- Psychological aspects , Performance standards -- Case studies , Exercise -- Physiological aspects , Exercise -- Psychological aspects , Marching -- Physiological aspects , Soldiers -- Job stress
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5130 , http://hdl.handle.net/10962/d1005209 , Performance -- Psychological aspects , Performance standards -- Case studies , Exercise -- Physiological aspects , Exercise -- Psychological aspects , Marching -- Physiological aspects , Soldiers -- Job stress
- Description: In response to challenging situations physiological and psychological adaptations result in elevated levels of arousal and when these levels are 'optimal' performance is enhanced. There are however, limitations to the amount of physiological and mental stimulation one can tolerate, with cumulative fatigue effects being the outcome when stressful conditions are imposed on the individual over an extended period of time. As a result of the extreme physical and cognitive demands placed on military forces while in combat, with soldiers being thrust into battle and required to make critical life-or-death determining decisions followed by appropriate motor responses, the physical and psychological capabilities of the troops are pushed to maximal limits, often resulting in undesirable decrements in physical and mental performance, with consequential human and materiel losses. Thirty-two soldiers participated in a battery of combat-related field and laboratory tests, first under 'normal' conditions with no prior physical activity and then immediately after the participation of an intensive bout of exercise. Physiological and perceptual responses plus standard of performance were measured at various stages of testing. Results of the Rating of Perceived Exertion (RPE), Body Discomfort Scale and heart rate responses revealed significantly higher levels of psychophysical strai,n in response to the strenuous physical activity. Despite these findings, the electromyographic (EMG) activity and efficiency of the combat-related skills were not negatively affected. Rather, nominal improvements in post-activity performance were noted, specifically response time, and this was attributed to elevated arousal and activation as a result of the exercise that was of sufficient duration to enhance arousal without imposing long term cumulative fatigue effects.
- Full Text:
- Authors: Clark, Lisa Anne
- Date: 2000
- Subjects: Performance -- Psychological aspects , Performance standards -- Case studies , Exercise -- Physiological aspects , Exercise -- Psychological aspects , Marching -- Physiological aspects , Soldiers -- Job stress
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5130 , http://hdl.handle.net/10962/d1005209 , Performance -- Psychological aspects , Performance standards -- Case studies , Exercise -- Physiological aspects , Exercise -- Psychological aspects , Marching -- Physiological aspects , Soldiers -- Job stress
- Description: In response to challenging situations physiological and psychological adaptations result in elevated levels of arousal and when these levels are 'optimal' performance is enhanced. There are however, limitations to the amount of physiological and mental stimulation one can tolerate, with cumulative fatigue effects being the outcome when stressful conditions are imposed on the individual over an extended period of time. As a result of the extreme physical and cognitive demands placed on military forces while in combat, with soldiers being thrust into battle and required to make critical life-or-death determining decisions followed by appropriate motor responses, the physical and psychological capabilities of the troops are pushed to maximal limits, often resulting in undesirable decrements in physical and mental performance, with consequential human and materiel losses. Thirty-two soldiers participated in a battery of combat-related field and laboratory tests, first under 'normal' conditions with no prior physical activity and then immediately after the participation of an intensive bout of exercise. Physiological and perceptual responses plus standard of performance were measured at various stages of testing. Results of the Rating of Perceived Exertion (RPE), Body Discomfort Scale and heart rate responses revealed significantly higher levels of psychophysical strai,n in response to the strenuous physical activity. Despite these findings, the electromyographic (EMG) activity and efficiency of the combat-related skills were not negatively affected. Rather, nominal improvements in post-activity performance were noted, specifically response time, and this was attributed to elevated arousal and activation as a result of the exercise that was of sufficient duration to enhance arousal without imposing long term cumulative fatigue effects.
- Full Text:
Portfolio of three projects
- Authors: Thomas, Lorraine
- Date: 2000
- Subjects: Educational leadership Organizational change Educational change School management and organization -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1707 , http://hdl.handle.net/10962/d1003590
- Description: Educational leadership and management is a very wide field of study with interdependent components that should form a chain reaction in order to bring about effective management. This study attempts to investigate planning in schools which is one of the educational leadership and management components or functions. Very little research work has been done on educational planning in the Ciskei schools. This is a shortcoming since the number of secondary schools has mushroomed in the late twentieth century. The Ciskei educational managers and parents need to know and take note of the possible situations in the various schools. This is opportune time, particularly that recent events, i.e. students' demands and strikes, are drawing parents closer to the education of their children. The researcher's experience of inspecting school administration since 1990 has reinforced his conviction that the managerial teams in the Ciskei secondary schools have little knowledge of management, and of planning in particular. Although the investigation is into secondary school administration, it is also pertinent to primary school planning. Management, i.e. school year-planning, control of work, staff development, appointment of teachers, policy governing students and teachers are discussed at length . Joint planning, i.e. a participative or consultative approach, and advance planning, are investigated in relation to the school year-programme. The existence of statutory bodies in the various schools is assessed in order to test parents' involvement in the education of their children. School tours are discussed in relation to students' involvement in the school activities. The analysis of the results highlights areas that require attention, and the recommendations given address the controversial issues in planning in the various schools.
- Full Text:
- Authors: Thomas, Lorraine
- Date: 2000
- Subjects: Educational leadership Organizational change Educational change School management and organization -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1707 , http://hdl.handle.net/10962/d1003590
- Description: Educational leadership and management is a very wide field of study with interdependent components that should form a chain reaction in order to bring about effective management. This study attempts to investigate planning in schools which is one of the educational leadership and management components or functions. Very little research work has been done on educational planning in the Ciskei schools. This is a shortcoming since the number of secondary schools has mushroomed in the late twentieth century. The Ciskei educational managers and parents need to know and take note of the possible situations in the various schools. This is opportune time, particularly that recent events, i.e. students' demands and strikes, are drawing parents closer to the education of their children. The researcher's experience of inspecting school administration since 1990 has reinforced his conviction that the managerial teams in the Ciskei secondary schools have little knowledge of management, and of planning in particular. Although the investigation is into secondary school administration, it is also pertinent to primary school planning. Management, i.e. school year-planning, control of work, staff development, appointment of teachers, policy governing students and teachers are discussed at length . Joint planning, i.e. a participative or consultative approach, and advance planning, are investigated in relation to the school year-programme. The existence of statutory bodies in the various schools is assessed in order to test parents' involvement in the education of their children. School tours are discussed in relation to students' involvement in the school activities. The analysis of the results highlights areas that require attention, and the recommendations given address the controversial issues in planning in the various schools.
- Full Text:
Principals' perceptions of the management of staff appraisal in schools.
- Authors: Blaauw, Lindiwe Ellen
- Date: 2000
- Subjects: Educational evaluation , Teachers -- Rating of
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2011 , http://hdl.handle.net/10962/d1016080
- Description: Teacher appraisal has long been a contentious and contested area in educational management. The recent implementation of a new system of appraisal in Eastern Cape Schools has led to renewed interest in the role and management of appraisal. The objective of this study was to investigate principals' perception of the management of staff appraisal. An interpretive paradigm was adopted and the research is a case study of four secondary schools in Port Elizabeth. Two methods were used in collecting data, namely, questionnaires and interviews. The content comparative method was used to analyse the data. The findings of this study showed areas of continuities and discontinuities with the literature and the new document on appraisal. There is a clear understanding among the principals interviewed that staff appraisal should be used to assess individual teacher performance and that it should also be developmental. There is clear support from the principals on the involvement of other stakeholders. They see the process as transformative and participatory. They find it acceptable and are willing to be involved. However, the findings also indicate a lack of readiness on the part of the principals to fully embrace a fully participative and developmental approach to appraisal. On the strength of these findings I conclude the thesis by making recommendations for policy, principals, teachers and for future researchers in the field.
- Full Text:
- Authors: Blaauw, Lindiwe Ellen
- Date: 2000
- Subjects: Educational evaluation , Teachers -- Rating of
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2011 , http://hdl.handle.net/10962/d1016080
- Description: Teacher appraisal has long been a contentious and contested area in educational management. The recent implementation of a new system of appraisal in Eastern Cape Schools has led to renewed interest in the role and management of appraisal. The objective of this study was to investigate principals' perception of the management of staff appraisal. An interpretive paradigm was adopted and the research is a case study of four secondary schools in Port Elizabeth. Two methods were used in collecting data, namely, questionnaires and interviews. The content comparative method was used to analyse the data. The findings of this study showed areas of continuities and discontinuities with the literature and the new document on appraisal. There is a clear understanding among the principals interviewed that staff appraisal should be used to assess individual teacher performance and that it should also be developmental. There is clear support from the principals on the involvement of other stakeholders. They see the process as transformative and participatory. They find it acceptable and are willing to be involved. However, the findings also indicate a lack of readiness on the part of the principals to fully embrace a fully participative and developmental approach to appraisal. On the strength of these findings I conclude the thesis by making recommendations for policy, principals, teachers and for future researchers in the field.
- Full Text:
Professional development in environmental education in Zanzibar, Tanzania: distances encountered in a semi-distance learning course
- Authors: Heylings, Phillippa Frances
- Date: 2000
- Subjects: Environmental education -- Tanzania -- Zanzibar Distance education -- Tanzania -- Zanzibar Environmental education Distance education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1715 , http://hdl.handle.net/10962/d1003598
- Description: In Zanzibar, in 1995, opportunities for professional development in environmental education were minimal. Yet the demand for professional development was high, especially because of an emphasis on formal qualifications in the country. Credibility was afforded to forms of professional development, aimed at creating more ‘experts’. Ongoing environmental education practice was not achieving its objectives. Into this setting, which was culturally and socio-politically different from the South African context where it was developed, I introduced the Rhodes University Certificate and Gold Fields Participatory Course in Environmental Education (RU/GF); a non-formal, counter-hegemonic course which encouraged critical reflection on the dominant orientations to environmental education practice – including professional development. I used critical ethnographic and action research methods to explore my praxiological interest, the adaptation of the RU/GF curriculum to the Zanzibar context. During the research process, a decision was made to formally accredit the RU/GF course. This decision did not alter the course orientation or the learning process but opened up possibilities for future curriculum development processes. It allowed the students both a formal qualification necessary for status and promotion, and participation in a learning process that challenged the dominant paradigm on professional development and status from within the socio-political context. The research took on a reflexive orientation to research and environmental education. Through a dialectical development of theory, method and results, several important issues emerged. These deal with the ‘distances’ encountered in attempting to address some of the perceived dichotomies in professional development in environmental education through semi-distance learning: the distances between status and learning; the need for career upgrading and the type of learning considered appropriate for professional development in environmental education; the non-quantifiable aims associated with a reflexive orientation to professional development and formal assessment demands for measurable criteria; the democratisation of open-entry courses and the elitism of restricted access; the focus on individual growth and the attainment of a normative grade; theory and practice; and finally distances between learner, text and language. The research supports similar findings emerging from evaluation of the RU/GF course in South Africa and resonates with, and contributes to, issues concerning professional development in environmental education being considered internationally.
- Full Text:
- Authors: Heylings, Phillippa Frances
- Date: 2000
- Subjects: Environmental education -- Tanzania -- Zanzibar Distance education -- Tanzania -- Zanzibar Environmental education Distance education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1715 , http://hdl.handle.net/10962/d1003598
- Description: In Zanzibar, in 1995, opportunities for professional development in environmental education were minimal. Yet the demand for professional development was high, especially because of an emphasis on formal qualifications in the country. Credibility was afforded to forms of professional development, aimed at creating more ‘experts’. Ongoing environmental education practice was not achieving its objectives. Into this setting, which was culturally and socio-politically different from the South African context where it was developed, I introduced the Rhodes University Certificate and Gold Fields Participatory Course in Environmental Education (RU/GF); a non-formal, counter-hegemonic course which encouraged critical reflection on the dominant orientations to environmental education practice – including professional development. I used critical ethnographic and action research methods to explore my praxiological interest, the adaptation of the RU/GF curriculum to the Zanzibar context. During the research process, a decision was made to formally accredit the RU/GF course. This decision did not alter the course orientation or the learning process but opened up possibilities for future curriculum development processes. It allowed the students both a formal qualification necessary for status and promotion, and participation in a learning process that challenged the dominant paradigm on professional development and status from within the socio-political context. The research took on a reflexive orientation to research and environmental education. Through a dialectical development of theory, method and results, several important issues emerged. These deal with the ‘distances’ encountered in attempting to address some of the perceived dichotomies in professional development in environmental education through semi-distance learning: the distances between status and learning; the need for career upgrading and the type of learning considered appropriate for professional development in environmental education; the non-quantifiable aims associated with a reflexive orientation to professional development and formal assessment demands for measurable criteria; the democratisation of open-entry courses and the elitism of restricted access; the focus on individual growth and the attainment of a normative grade; theory and practice; and finally distances between learner, text and language. The research supports similar findings emerging from evaluation of the RU/GF course in South Africa and resonates with, and contributes to, issues concerning professional development in environmental education being considered internationally.
- Full Text:
Profile of paediatric psychosocial disorders in Frere Hospital and analysis of associated patterns of referrals
- Authors: Chukwuemeka, Gregory Adjuba
- Date: 2000
- Subjects: Child psychopathology , Frere Hospital
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2949 , http://hdl.handle.net/10962/d1002458 , Child psychopathology , Frere Hospital
- Description: The profile of psychosocial disorders in children and the attendant patterns of referrals and health communication, were investigated within the context of a tertiary referral centre in the Eastern Cape Province. Literature on childhood disorders points to a high level of functional and substance related disorders in technologically developed countries of Europe and North America, in contrast to the developing countries of Asia and Africa, where the burden of infectious diseases and disorders of deprivation and lack still predominate in the profile of psychosocial disorders in children. In South Africa however, there is almost non-existent research on clinical psychosocial disorders profile and the research sets out to be an exploratory study in this area. A combination design was employed in which interviews and observations complemented a primarily quantitative descriptive cross sectional analysis of hospitalcase records. A pilot study was performed using an information gathering questionnaire and interviews, with findings subsequently explored in the main study. The International Classification of Diseases (ICD-10) (WHO, 1992) diagnostic categories were used to create a profile of all ailments in the paediatric unit. Psychosocial disorders both in terms of aetiology and illness course, can be viewed from the perspective of socialadjustment and functioning (in which there is a potential role of social factors as provoking, causal or modifying factors) (Williams &Clare, 1979); and the DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) (American Psychiatric Association,1994) criteria was used to create the profile of these disorders in the paediatric unit at Frere Hospital which accounted for 45% of the ailments managed in one year. The derived profile is a picture in between the profile found in technologically advanced countries, and developing countries. While the infection burden and malnutrition appear to be readily contained or curtailed, there appears to be a serious problem with access to health care services which manifest especially at the level of perinatal events, with resultant high level of hypoxic brain damage and consequently mental retardation and varying levels of impairment or disability. These medical consequences in turn are fundamentally psychosocial, requiring psychosocial care with heavy reliance on strategic communication and referrals. The referrals in respect of psychosocial disorders are mainly at primary care level revolving around local health care clinics, private clinics, special schools and rehabilitation centres.
- Full Text:
- Authors: Chukwuemeka, Gregory Adjuba
- Date: 2000
- Subjects: Child psychopathology , Frere Hospital
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2949 , http://hdl.handle.net/10962/d1002458 , Child psychopathology , Frere Hospital
- Description: The profile of psychosocial disorders in children and the attendant patterns of referrals and health communication, were investigated within the context of a tertiary referral centre in the Eastern Cape Province. Literature on childhood disorders points to a high level of functional and substance related disorders in technologically developed countries of Europe and North America, in contrast to the developing countries of Asia and Africa, where the burden of infectious diseases and disorders of deprivation and lack still predominate in the profile of psychosocial disorders in children. In South Africa however, there is almost non-existent research on clinical psychosocial disorders profile and the research sets out to be an exploratory study in this area. A combination design was employed in which interviews and observations complemented a primarily quantitative descriptive cross sectional analysis of hospitalcase records. A pilot study was performed using an information gathering questionnaire and interviews, with findings subsequently explored in the main study. The International Classification of Diseases (ICD-10) (WHO, 1992) diagnostic categories were used to create a profile of all ailments in the paediatric unit. Psychosocial disorders both in terms of aetiology and illness course, can be viewed from the perspective of socialadjustment and functioning (in which there is a potential role of social factors as provoking, causal or modifying factors) (Williams &Clare, 1979); and the DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) (American Psychiatric Association,1994) criteria was used to create the profile of these disorders in the paediatric unit at Frere Hospital which accounted for 45% of the ailments managed in one year. The derived profile is a picture in between the profile found in technologically advanced countries, and developing countries. While the infection burden and malnutrition appear to be readily contained or curtailed, there appears to be a serious problem with access to health care services which manifest especially at the level of perinatal events, with resultant high level of hypoxic brain damage and consequently mental retardation and varying levels of impairment or disability. These medical consequences in turn are fundamentally psychosocial, requiring psychosocial care with heavy reliance on strategic communication and referrals. The referrals in respect of psychosocial disorders are mainly at primary care level revolving around local health care clinics, private clinics, special schools and rehabilitation centres.
- Full Text:
Research Portfolio
- Authors: Nts'aba, Likengkeng
- Date: 2000
- Subjects: School management and organization -- South Africa -- Eastern Cape , School board members -- South Africa -- Eastern Cape -- Decision making , Education -- Political aspects -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2051 , http://hdl.handle.net/10962/d1018259
- Description: The move towards greater democracy and participation in our education system is legislated quite succinctly in our South African Schools Act. The Act furthermore, and more importantly for this case study, posits that decision-making should be democratic in nature and our schools should eventually become governed in a collaborative and co-operative manner. Other policy texts such as the Labour Relations Act and the South African Constitution canonise the demand for a democratic South African society. This study investigates how democratic decision-making practices are taking place in an East London Secondary School namely Ebenezer Majombozi High. Even though distinct links exist between management and governance arms of schools, this study concentrates predominantly on decision-making within the school governing body and touches briefly on management thinking trends as a theoretical background to the kind of management at the school. What makes the school interesting as a case study is its rich history and its location in a deprived and impoverished township environment. The school was also part of the ex-Department of Education and Training, the black educational department of the past apartheid state. The kind of research undertaken was in the form of unstructured personal :interviews with influential stakeholders at the school. Some of these stakeholders fonn part of the school governing body and the questions asked probed forms of governance at the school and how decision-making impacted on the overall school governance. The research fmdings acknowledges that decision-making does occur democratically at the school but that the practical implementation of positive consensual decisions are rarely realized. The school governing body only meets to deal with crises underpinned by a lack of learning and teaching and has not even debated the policies within the South African Schools Act. The study also argues that only by building capacity within the school and empowering the stakeholders, can constructive participation by all become a reality.
- Full Text:
- Authors: Nts'aba, Likengkeng
- Date: 2000
- Subjects: School management and organization -- South Africa -- Eastern Cape , School board members -- South Africa -- Eastern Cape -- Decision making , Education -- Political aspects -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2051 , http://hdl.handle.net/10962/d1018259
- Description: The move towards greater democracy and participation in our education system is legislated quite succinctly in our South African Schools Act. The Act furthermore, and more importantly for this case study, posits that decision-making should be democratic in nature and our schools should eventually become governed in a collaborative and co-operative manner. Other policy texts such as the Labour Relations Act and the South African Constitution canonise the demand for a democratic South African society. This study investigates how democratic decision-making practices are taking place in an East London Secondary School namely Ebenezer Majombozi High. Even though distinct links exist between management and governance arms of schools, this study concentrates predominantly on decision-making within the school governing body and touches briefly on management thinking trends as a theoretical background to the kind of management at the school. What makes the school interesting as a case study is its rich history and its location in a deprived and impoverished township environment. The school was also part of the ex-Department of Education and Training, the black educational department of the past apartheid state. The kind of research undertaken was in the form of unstructured personal :interviews with influential stakeholders at the school. Some of these stakeholders fonn part of the school governing body and the questions asked probed forms of governance at the school and how decision-making impacted on the overall school governance. The research fmdings acknowledges that decision-making does occur democratically at the school but that the practical implementation of positive consensual decisions are rarely realized. The school governing body only meets to deal with crises underpinned by a lack of learning and teaching and has not even debated the policies within the South African Schools Act. The study also argues that only by building capacity within the school and empowering the stakeholders, can constructive participation by all become a reality.
- Full Text:
Research portfolio
- Authors: Ngwane, Mandisa Sweetness
- Date: 2000
- Subjects: Educational surveys -- South Africa -- Grahamstown Educational evaluation -- South Africa -- Grahamstown Education -- Environmental aspects Environmental education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1728 , http://hdl.handle.net/10962/d1003611
- Full Text:
- Authors: Ngwane, Mandisa Sweetness
- Date: 2000
- Subjects: Educational surveys -- South Africa -- Grahamstown Educational evaluation -- South Africa -- Grahamstown Education -- Environmental aspects Environmental education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1728 , http://hdl.handle.net/10962/d1003611
- Full Text:
Research Projects Portfolio.
- Authors: Schudel, Ingrid Joan
- Date: 2000
- Subjects: Environmental education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2015 , http://hdl.handle.net/10962/d1016368
- Description: This collection of research projects tells a story of the time I have spent with members of the Albany Working for Water team; including preparations made, lessons learned and insights gained. My first project was to analyse the methodology of a research paper. I chose the paper by Arjen Wals because I intended, like him, to examine people's perceptions of environmental issues. From this paper I gained ideas for a qualitative research process and learnt the importance of theoretical and methodological consistency. My next project was to present a report on my research into the perceptions of workrelated environmental issues among the Albany Working for Water workers. From this research I gained insight into the knowledge of the workers and also some of the misconceptions that they have about social and ecological issues. I made educational recommendations based on these insights. This experience inspired me to initiate a play with a group of the workers about alien plant eradication. The process of developing this play formed the basis for a research paper that I have submitted as another research project. Concurrent with the development of the play, I conducted a fourth research project that was a situational analysis of the Albany Workingfor Water Project. I hoped that this analysis would provide useful insight into the context of the above two projects. Overall, I hope the story reflects how I have grown through the learning experiences I shared with the Albany Working for Water team. I would like to extend to my thanks to all those who assisted and shared my journey with me.
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- Authors: Schudel, Ingrid Joan
- Date: 2000
- Subjects: Environmental education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2015 , http://hdl.handle.net/10962/d1016368
- Description: This collection of research projects tells a story of the time I have spent with members of the Albany Working for Water team; including preparations made, lessons learned and insights gained. My first project was to analyse the methodology of a research paper. I chose the paper by Arjen Wals because I intended, like him, to examine people's perceptions of environmental issues. From this paper I gained ideas for a qualitative research process and learnt the importance of theoretical and methodological consistency. My next project was to present a report on my research into the perceptions of workrelated environmental issues among the Albany Working for Water workers. From this research I gained insight into the knowledge of the workers and also some of the misconceptions that they have about social and ecological issues. I made educational recommendations based on these insights. This experience inspired me to initiate a play with a group of the workers about alien plant eradication. The process of developing this play formed the basis for a research paper that I have submitted as another research project. Concurrent with the development of the play, I conducted a fourth research project that was a situational analysis of the Albany Workingfor Water Project. I hoped that this analysis would provide useful insight into the context of the above two projects. Overall, I hope the story reflects how I have grown through the learning experiences I shared with the Albany Working for Water team. I would like to extend to my thanks to all those who assisted and shared my journey with me.
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Road culture : an investigation of the road as a means of mental and physical exploration
- Authors: Meistre, Brent Arthur
- Date: 2000
- Subjects: Roads in art , Travel in art , Travel -- Psychological aspects , Travelers -- Psychology
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2414 , http://hdl.handle.net/10962/d1002210 , Roads in art , Travel in art , Travel -- Psychological aspects , Travelers -- Psychology
- Description: Chapter one considers various manifestations of the concept of ‘journey’ and how they have changed over history. The Odyssean journey that the hero undertakes to reach a point of self-realisation is investigated. This leads to a other discussion of types of journeys such as pilgrimages, as well as ‘wandering’. These are contrasted with the twentieth century perceptions of journey. Questions of travel are then dealt with: how the nature of the traveller's path has changed over the centuries, various points of travel and gender, and how in the last century solitary travel has been transformed into mass tourism. The second chapter deals specifically with the motorcar, the mobility it enables and how it has led to the rise of a roadside culture. Different factors that influenced the rise of the motorcar are looked at. The motorcar as a cell and eroticism and the car are also investigated. The twentieth century city, it's restructuring, as well as the highway systems is discussed. In Chapter Three, the sense of freedom that the motorcar created is considered in particular reference to escape, aimlessness, and road weariness, as well as the landscape as a symbol of freedom. This leads to a discussion on the notion of speed, the sense of power and the romanticisation of death in car crashes. Chapter Four investigates masculinity and the road. The frontier as a place in the psyche of the male is also dealt with. The road as a means of testing and regaining masculinity in the mid-twentieth century is considered. Issues of the male domination of the land and the feminine are discussed, with the chapter ending with a brief examination of the woman as traveller. Lastly the masters’ submission exhibition, entitled RODE is discussed with direct reference to the theories investigated in the previous chapters. Individual works as well as the methodology are looked at closely.
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- Authors: Meistre, Brent Arthur
- Date: 2000
- Subjects: Roads in art , Travel in art , Travel -- Psychological aspects , Travelers -- Psychology
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2414 , http://hdl.handle.net/10962/d1002210 , Roads in art , Travel in art , Travel -- Psychological aspects , Travelers -- Psychology
- Description: Chapter one considers various manifestations of the concept of ‘journey’ and how they have changed over history. The Odyssean journey that the hero undertakes to reach a point of self-realisation is investigated. This leads to a other discussion of types of journeys such as pilgrimages, as well as ‘wandering’. These are contrasted with the twentieth century perceptions of journey. Questions of travel are then dealt with: how the nature of the traveller's path has changed over the centuries, various points of travel and gender, and how in the last century solitary travel has been transformed into mass tourism. The second chapter deals specifically with the motorcar, the mobility it enables and how it has led to the rise of a roadside culture. Different factors that influenced the rise of the motorcar are looked at. The motorcar as a cell and eroticism and the car are also investigated. The twentieth century city, it's restructuring, as well as the highway systems is discussed. In Chapter Three, the sense of freedom that the motorcar created is considered in particular reference to escape, aimlessness, and road weariness, as well as the landscape as a symbol of freedom. This leads to a discussion on the notion of speed, the sense of power and the romanticisation of death in car crashes. Chapter Four investigates masculinity and the road. The frontier as a place in the psyche of the male is also dealt with. The road as a means of testing and regaining masculinity in the mid-twentieth century is considered. Issues of the male domination of the land and the feminine are discussed, with the chapter ending with a brief examination of the woman as traveller. Lastly the masters’ submission exhibition, entitled RODE is discussed with direct reference to the theories investigated in the previous chapters. Individual works as well as the methodology are looked at closely.
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Rural students' local knowledge of learning in formal and informal contexts
- Authors: Visser, Alvin-Jon
- Date: 2000
- Subjects: Non-formal education -- South Africa , Education and state -- South Africa , Rural children -- Education -- South Africa , Black people -- Education -- South Africa , Community and school -- South Africa , Education, Rural -- Social Aspects -- South Africa , Rural schools -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3079 , http://hdl.handle.net/10962/d1002588 , Non-formal education -- South Africa , Education and state -- South Africa , Rural children -- Education -- South Africa , Black people -- Education -- South Africa , Community and school -- South Africa , Education, Rural -- Social Aspects -- South Africa , Rural schools -- South Africa
- Description: The general aim of this thesis is to illuminate the process of learning as it occurs in formal and informal contexts. The study focuses on South African scholars attending school in rural areas where the contrast between learning in formal and informal learning contexts is more pronounced than that in urban areas. The research draws on rural scholars' local knowledge of formal and informal learning contexts in order to gain a rich insight into how cognition is situated in different learning contexts. This is accomplished through investigating the structure of the respective learning tasks, the mediators involved, the task objectives and the means for achieving these objectives in the different learning contexts. The thesis draws on a socio-cultural approach to the study of cognitive development to probe the activity of learning in a formal and informal learning context. Through the use of a context sensitive methodological methods especially Participatory Rural Appraisal (PRA) tools and techniques, it was possible to illuminate tacit local knowledge structures and to get participants to actively explicate their understandings related to learning in different contexts The research results illustrate the assertion that the activity of learning is fundamentally situated in the learning context from which it arises. Learning is framed by the community of practice which structures affordances for situated learning, through mediation, within zones of proximal development. Learning in a formal context such as the school is often abstract, rule-based, standardised and theory related. Learners also find it difficult to reflect on the learning tasks and the mediational means used in a formal learning context. In contrast, the learning which takes place in an informal setting is often practical, individualised, flexible and environment based. This learning is structured around everyday activities and is dynamically defined and supported. In a situation where a learner is exposed to dislocated learning contexts, the essential goal of educational initiatives is to bridge the gap between the two. This can be achieved through mediators creating effective zones of proximal development which facilitate the individuals adaptation between learning contexts. Exposing rural scholars' local knowledge of learning in formal and informal contexts allows for a fuller understanding of the cognitive development structured within formal and informal communities of practice. It is this understanding that is necessary to address the situation where learning contexts, drawing on different knowledge bases find ways of thinking, prove challenging and/or conflicting to the scholar.
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- Authors: Visser, Alvin-Jon
- Date: 2000
- Subjects: Non-formal education -- South Africa , Education and state -- South Africa , Rural children -- Education -- South Africa , Black people -- Education -- South Africa , Community and school -- South Africa , Education, Rural -- Social Aspects -- South Africa , Rural schools -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3079 , http://hdl.handle.net/10962/d1002588 , Non-formal education -- South Africa , Education and state -- South Africa , Rural children -- Education -- South Africa , Black people -- Education -- South Africa , Community and school -- South Africa , Education, Rural -- Social Aspects -- South Africa , Rural schools -- South Africa
- Description: The general aim of this thesis is to illuminate the process of learning as it occurs in formal and informal contexts. The study focuses on South African scholars attending school in rural areas where the contrast between learning in formal and informal learning contexts is more pronounced than that in urban areas. The research draws on rural scholars' local knowledge of formal and informal learning contexts in order to gain a rich insight into how cognition is situated in different learning contexts. This is accomplished through investigating the structure of the respective learning tasks, the mediators involved, the task objectives and the means for achieving these objectives in the different learning contexts. The thesis draws on a socio-cultural approach to the study of cognitive development to probe the activity of learning in a formal and informal learning context. Through the use of a context sensitive methodological methods especially Participatory Rural Appraisal (PRA) tools and techniques, it was possible to illuminate tacit local knowledge structures and to get participants to actively explicate their understandings related to learning in different contexts The research results illustrate the assertion that the activity of learning is fundamentally situated in the learning context from which it arises. Learning is framed by the community of practice which structures affordances for situated learning, through mediation, within zones of proximal development. Learning in a formal context such as the school is often abstract, rule-based, standardised and theory related. Learners also find it difficult to reflect on the learning tasks and the mediational means used in a formal learning context. In contrast, the learning which takes place in an informal setting is often practical, individualised, flexible and environment based. This learning is structured around everyday activities and is dynamically defined and supported. In a situation where a learner is exposed to dislocated learning contexts, the essential goal of educational initiatives is to bridge the gap between the two. This can be achieved through mediators creating effective zones of proximal development which facilitate the individuals adaptation between learning contexts. Exposing rural scholars' local knowledge of learning in formal and informal contexts allows for a fuller understanding of the cognitive development structured within formal and informal communities of practice. It is this understanding that is necessary to address the situation where learning contexts, drawing on different knowledge bases find ways of thinking, prove challenging and/or conflicting to the scholar.
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Rural underdevelopment in the former Ciskei with specific reference to Glenmore Village
- Authors: Malila, Brett
- Date: 2000
- Subjects: Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Social conditions , Glenmore (South Africa) -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3288 , http://hdl.handle.net/10962/d1003076 , Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Social conditions , Glenmore (South Africa) -- Economic conditions
- Description: This thesis examines development changes that took place in Glenmore after 1994. To examine such change one needs to have a concise historical understanding of the situation in Glenmore before democracy. The aim of the work is to critique development at a local, rural level, pinpointing the major changes, if any, that came with the incorporation of the former homeland of Ciskei (and thus Glenmore village) with South Africa. These people were forcibly resettled in 1979 for political and economic reasons. Their situation then was one of dire poverty; it is argued here that even with democracy, their history of underdevelopment has continued. The reason for this continued underdevelopment is the structure of the former reserves. The overall political context has changed in South Africa but the most important aspect with regard to the development of the homelands: land, has not. At the central level, the government has churned out a wide variety of development policies, which due to the prevailing political and economic context of the times are fraught with inconsistencies. The example used here to show some of these inconsistencies is the 1997 White Paper on Land Reform. This confusion at the central level with regard to the perceived future of South Africa has managed to adversely affect the rural areas and their development. There very well might be policies in abundance to improve the life-world of the rural poor, but there are inconsistencies between this policy and actual practice. With regard to Glenmore the confusion in the present government’s central development policy is arguably the main reason for the underdevelopment of the village. The inconsistencies in policy such as the 1997 White Paper on Land Reform, have meant that the structure of the reserves has not changed. Vital issues such as land tenure and ownership have not been dealt with. The study thus shows that unless the structure of the homeland system which is predominantly based on issues of land, is changed, genuine social and economic development will not take place in areas like Glenmore.
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- Authors: Malila, Brett
- Date: 2000
- Subjects: Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Social conditions , Glenmore (South Africa) -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3288 , http://hdl.handle.net/10962/d1003076 , Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Social conditions , Glenmore (South Africa) -- Economic conditions
- Description: This thesis examines development changes that took place in Glenmore after 1994. To examine such change one needs to have a concise historical understanding of the situation in Glenmore before democracy. The aim of the work is to critique development at a local, rural level, pinpointing the major changes, if any, that came with the incorporation of the former homeland of Ciskei (and thus Glenmore village) with South Africa. These people were forcibly resettled in 1979 for political and economic reasons. Their situation then was one of dire poverty; it is argued here that even with democracy, their history of underdevelopment has continued. The reason for this continued underdevelopment is the structure of the former reserves. The overall political context has changed in South Africa but the most important aspect with regard to the development of the homelands: land, has not. At the central level, the government has churned out a wide variety of development policies, which due to the prevailing political and economic context of the times are fraught with inconsistencies. The example used here to show some of these inconsistencies is the 1997 White Paper on Land Reform. This confusion at the central level with regard to the perceived future of South Africa has managed to adversely affect the rural areas and their development. There very well might be policies in abundance to improve the life-world of the rural poor, but there are inconsistencies between this policy and actual practice. With regard to Glenmore the confusion in the present government’s central development policy is arguably the main reason for the underdevelopment of the village. The inconsistencies in policy such as the 1997 White Paper on Land Reform, have meant that the structure of the reserves has not changed. Vital issues such as land tenure and ownership have not been dealt with. The study thus shows that unless the structure of the homeland system which is predominantly based on issues of land, is changed, genuine social and economic development will not take place in areas like Glenmore.
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Searching for new relevance in the 1990s: the Organization of African Unity as an instrument of conflict resolution
- Authors: Dlamini, Thandeka Lungile
- Date: 2000
- Subjects: Organization of African Unity , Africa -- Foreign relations , Conflict management -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2770 , http://hdl.handle.net/10962/d1002980 , Organization of African Unity , Africa -- Foreign relations , Conflict management -- Africa
- Description: The 1960's and the 1970's marked a great Pan-African movement in Africa, that saw the liberation of most African states. This Pan-African movement, was spearheaded by a quest to unite Africa, and to abate foreign occupation. Amidst the spirit of unity, lay a promise of an organization that would embody the hopes and aspirations of a continent undergoing a re-birth; a progression towards self-determination, economic development and integration, and the maintenance of peace. Therefore, the inception ofthe Organization of African Unity (OAD) was not only a symbol of a unifying force for Africans, but a diplomatic platform that would promote African needs on the international arena. In effect the OAU, at its inception, was for specific ideals that would guarantee liberation and unity of African states. The outcome of these ideals would be greater regional economic integration and the achievement of peace and stability. These ideals mirrored the structural definition of regional organization, with the inclusion of a Commission for Mediation Arbitration and Conciliation under the OAU Charter, to handle disputes among member states. However, the mere fact that this commission lacked the political wherewithal to resolve conflicts, by its sheer lack of a standing peacekeeping force, contributed to the inefficiency of the organization to play an effective role in conflict management. This study attempts to examine the role ofthe OAU in settling disputes. The study sought to accomplish this, in the following manner. Firstly, an investigation into the nature of conflict and why it persists in Africa was conducted. Further, an examination ofthe tools that practitioners utilize not only to study conflict, but to prevent, manage and resolve it, was done. During the investigation it was found that, although the OAU's greatest successes have come from preventive diplomacy, its structural foundations limit the capabilities of the organization to become more relevant. The Charter of the OAU alludes vaguely to the settlement of disputes, but without an executive political decision-making body able to deploy peacekeepers, its principles are largely meaningless. Amidst the growing concerns, the OAU as a matter of survival, developed initiatives it hopes will make it more effective and relevant. The focus ofthe study was the evolving role ofthe OAU, from its inception to its new role as an instrument of conflict resolution. Most of the scholarly work conducted on the OAU, is concerned with depicting a terminal organization, with little or no hope of surviving. Little emphasis is placed on prescribing remedies on how to improve and restructure the organization. The findings included, inter alia, that the organization is faced with enormous challenges, as the sources of conflict are varied and complex. Africa is now the landscape of collapsed states, economic stagnation, environmental degradation, disease and chronic conflicts. The OAU shoulders much ofthe responsibility for not sanctioning governments that contribute to the decay and suffering of the African peoples. Most ofthe criticism of the OAU, stem from the inability of the organization to play an effective role in resolving conflicts in Africa. Most of Africa's conflicts stem from a lack of political legitimacy, lack of democratic institutions, uneven distribution of resources, ethnic tensions and economic stagnation. Until such problems are addressed, Africa will continue to host the world's deadliest conflicts.
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- Authors: Dlamini, Thandeka Lungile
- Date: 2000
- Subjects: Organization of African Unity , Africa -- Foreign relations , Conflict management -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2770 , http://hdl.handle.net/10962/d1002980 , Organization of African Unity , Africa -- Foreign relations , Conflict management -- Africa
- Description: The 1960's and the 1970's marked a great Pan-African movement in Africa, that saw the liberation of most African states. This Pan-African movement, was spearheaded by a quest to unite Africa, and to abate foreign occupation. Amidst the spirit of unity, lay a promise of an organization that would embody the hopes and aspirations of a continent undergoing a re-birth; a progression towards self-determination, economic development and integration, and the maintenance of peace. Therefore, the inception ofthe Organization of African Unity (OAD) was not only a symbol of a unifying force for Africans, but a diplomatic platform that would promote African needs on the international arena. In effect the OAU, at its inception, was for specific ideals that would guarantee liberation and unity of African states. The outcome of these ideals would be greater regional economic integration and the achievement of peace and stability. These ideals mirrored the structural definition of regional organization, with the inclusion of a Commission for Mediation Arbitration and Conciliation under the OAU Charter, to handle disputes among member states. However, the mere fact that this commission lacked the political wherewithal to resolve conflicts, by its sheer lack of a standing peacekeeping force, contributed to the inefficiency of the organization to play an effective role in conflict management. This study attempts to examine the role ofthe OAU in settling disputes. The study sought to accomplish this, in the following manner. Firstly, an investigation into the nature of conflict and why it persists in Africa was conducted. Further, an examination ofthe tools that practitioners utilize not only to study conflict, but to prevent, manage and resolve it, was done. During the investigation it was found that, although the OAU's greatest successes have come from preventive diplomacy, its structural foundations limit the capabilities of the organization to become more relevant. The Charter of the OAU alludes vaguely to the settlement of disputes, but without an executive political decision-making body able to deploy peacekeepers, its principles are largely meaningless. Amidst the growing concerns, the OAU as a matter of survival, developed initiatives it hopes will make it more effective and relevant. The focus ofthe study was the evolving role ofthe OAU, from its inception to its new role as an instrument of conflict resolution. Most of the scholarly work conducted on the OAU, is concerned with depicting a terminal organization, with little or no hope of surviving. Little emphasis is placed on prescribing remedies on how to improve and restructure the organization. The findings included, inter alia, that the organization is faced with enormous challenges, as the sources of conflict are varied and complex. Africa is now the landscape of collapsed states, economic stagnation, environmental degradation, disease and chronic conflicts. The OAU shoulders much ofthe responsibility for not sanctioning governments that contribute to the decay and suffering of the African peoples. Most ofthe criticism of the OAU, stem from the inability of the organization to play an effective role in resolving conflicts in Africa. Most of Africa's conflicts stem from a lack of political legitimacy, lack of democratic institutions, uneven distribution of resources, ethnic tensions and economic stagnation. Until such problems are addressed, Africa will continue to host the world's deadliest conflicts.
- Full Text: