Investigating learning interactions influencing farmers' choices of cultivated food plants
- Authors: Pesanayi, Victor Tichaona
- Date: 2008
- Subjects: Sustainable development -- Africa Poverty -- Africa Environmental education -- Zimbabwe Food supply -- Environmental aspects -- Zimbabwe Farmers -- Education -- Zimbabwe Agriculture -- Study and teaching -- Zimbabwe Plants, cultivated -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1587 , http://hdl.handle.net/10962/d1003469
- Description: The most critical hurdle on the path to sustainable development in Africa and the rest of the so-called Third World is poverty, commonly manifested as food security. A number of factors threaten food security in Zimbabwe, and these include climate change, an unstable socio-political environment and economic depression. The major debates and initiatives on sustainable development often fail to focus on the eradication of poverty in southern Africa. As a result, the trade liberalisation programmes signed by African countries in economic partnership agreements leave smallholder farmers vulnerable to the influx of hybrid seed and genetically modified organisms (GMOs), which threaten local agro-biodiversity. This case study has shown that farmers select seed to plant for food as a result of various learning interactions they engage in, which include inter-generational knowledge transfer, farmer to farmer extension and external training by extension organisations and NGOs. A communities of practice (COPs) (Wenger, 2007) framework was used to gain an understanding of the learning interactions among farmers and their stakeholders in Nyanga and Marange COPs of small grain farmers in Manicaland Province, Zimbabwe, who have been working with Environment Africa (A regional NGO). A critical realist causal analysis was conducted to unravel the various causal factors influencing choice. A number of underlying structures and causal mechanisms were found to influence learning interactions and choices in these communities of practice, and they include ambivalence, which influences the changing domain and practice. Climate change, drought and risk were found to affect farmer practice, while power relations affect the community, its practice, domain, sponsorship and the learning interactions in the COPs. The political economy was also found to have a profound effect on the domain and practice. A space was found for the influence of capacity and knowledge sharing in participatory frameworks of the communities, implying that extension quality can be enhanced to promote locally adapted and diverse seed varieties for food security improvement. The study shows that a deeper understanding of the mechanisms influencing the context of teaching and learning provides a more refined insight into the learning interactions and choices of farmers. This, coupled with the social processes descriptors provided by Wildemeersch (2007) has given me a more detailed understanding of the nature of learning interactions influencing farmer choices.
- Full Text:
- Date Issued: 2008
- Authors: Pesanayi, Victor Tichaona
- Date: 2008
- Subjects: Sustainable development -- Africa Poverty -- Africa Environmental education -- Zimbabwe Food supply -- Environmental aspects -- Zimbabwe Farmers -- Education -- Zimbabwe Agriculture -- Study and teaching -- Zimbabwe Plants, cultivated -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1587 , http://hdl.handle.net/10962/d1003469
- Description: The most critical hurdle on the path to sustainable development in Africa and the rest of the so-called Third World is poverty, commonly manifested as food security. A number of factors threaten food security in Zimbabwe, and these include climate change, an unstable socio-political environment and economic depression. The major debates and initiatives on sustainable development often fail to focus on the eradication of poverty in southern Africa. As a result, the trade liberalisation programmes signed by African countries in economic partnership agreements leave smallholder farmers vulnerable to the influx of hybrid seed and genetically modified organisms (GMOs), which threaten local agro-biodiversity. This case study has shown that farmers select seed to plant for food as a result of various learning interactions they engage in, which include inter-generational knowledge transfer, farmer to farmer extension and external training by extension organisations and NGOs. A communities of practice (COPs) (Wenger, 2007) framework was used to gain an understanding of the learning interactions among farmers and their stakeholders in Nyanga and Marange COPs of small grain farmers in Manicaland Province, Zimbabwe, who have been working with Environment Africa (A regional NGO). A critical realist causal analysis was conducted to unravel the various causal factors influencing choice. A number of underlying structures and causal mechanisms were found to influence learning interactions and choices in these communities of practice, and they include ambivalence, which influences the changing domain and practice. Climate change, drought and risk were found to affect farmer practice, while power relations affect the community, its practice, domain, sponsorship and the learning interactions in the COPs. The political economy was also found to have a profound effect on the domain and practice. A space was found for the influence of capacity and knowledge sharing in participatory frameworks of the communities, implying that extension quality can be enhanced to promote locally adapted and diverse seed varieties for food security improvement. The study shows that a deeper understanding of the mechanisms influencing the context of teaching and learning provides a more refined insight into the learning interactions and choices of farmers. This, coupled with the social processes descriptors provided by Wildemeersch (2007) has given me a more detailed understanding of the nature of learning interactions influencing farmer choices.
- Full Text:
- Date Issued: 2008
Investigating teamwork competencies in the value chain of a selected wool brokerage logistics department
- Authors: Craig, Kenneth Bruce
- Date: 2008
- Subjects: Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8712 , http://hdl.handle.net/10948/936 , Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Description: department of BKB Ltd. The research aimed at addressing the team balance, the environment and culture in which the team operates and teamwork competencies of the value chain. Thus, creating a high performance value chain team will add to the success of the team, and hence the company as a whole. Research to establish the degree of teamwork within the value chain was undertaken. A survey which included a structured self-administered questionnaire was used to elicit information from all eight value chain team members (four section heads and their four supervisors), who represented the entire cross-section of the value chain team. The research revealed the following important points pertaining to the value chain team: • The team’s balance needs to be addressed; and • The culture and environment in which the team operates needs to be reviewed. Points of interest pertaining to teamwork competencies include the following: • The degree of teamwork is average; • The level of individual competencies is high; • The extent that team members are team players is average; • That team communication is below average; • A high perception of hidden agendas exists; • Dysfunctional team conflict exists; • A high level of empowerment and autonomy exists; • Team leadership - team linker is absent; • Co-operation and collaboration is below average; • Team attitude is high; • Team motivation is high; • Team strategies exist, but need more attention; • Team set goals are set; • Free-wheelers exist in the team; • Job satisfaction is above average; • Team recognition is high; and • Team synergy is average. Teamwork needs to be analyzed holistically, to ensure that the complex dynamics of teamwork is acknowledged and understood. A greater knowledge and understanding of the characteristics and measurement criteria of teamwork will equip team enthusiasts in building high performance teams, to the benefit of all role players. High performance team based organisations will add to the current and future success of the business. As the term “synergy” implies, the result is greater than the sum of the individual effects and capabilities. This emphasises why team-based organisations are fast becoming the modern trend of doing business.
- Full Text:
- Date Issued: 2008
- Authors: Craig, Kenneth Bruce
- Date: 2008
- Subjects: Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8712 , http://hdl.handle.net/10948/936 , Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Description: department of BKB Ltd. The research aimed at addressing the team balance, the environment and culture in which the team operates and teamwork competencies of the value chain. Thus, creating a high performance value chain team will add to the success of the team, and hence the company as a whole. Research to establish the degree of teamwork within the value chain was undertaken. A survey which included a structured self-administered questionnaire was used to elicit information from all eight value chain team members (four section heads and their four supervisors), who represented the entire cross-section of the value chain team. The research revealed the following important points pertaining to the value chain team: • The team’s balance needs to be addressed; and • The culture and environment in which the team operates needs to be reviewed. Points of interest pertaining to teamwork competencies include the following: • The degree of teamwork is average; • The level of individual competencies is high; • The extent that team members are team players is average; • That team communication is below average; • A high perception of hidden agendas exists; • Dysfunctional team conflict exists; • A high level of empowerment and autonomy exists; • Team leadership - team linker is absent; • Co-operation and collaboration is below average; • Team attitude is high; • Team motivation is high; • Team strategies exist, but need more attention; • Team set goals are set; • Free-wheelers exist in the team; • Job satisfaction is above average; • Team recognition is high; and • Team synergy is average. Teamwork needs to be analyzed holistically, to ensure that the complex dynamics of teamwork is acknowledged and understood. A greater knowledge and understanding of the characteristics and measurement criteria of teamwork will equip team enthusiasts in building high performance teams, to the benefit of all role players. High performance team based organisations will add to the current and future success of the business. As the term “synergy” implies, the result is greater than the sum of the individual effects and capabilities. This emphasises why team-based organisations are fast becoming the modern trend of doing business.
- Full Text:
- Date Issued: 2008
Investigating the learners perceptions on the factors that influence learners to use and abuse drugs: a case study of one secondary school in the Eastern Cape Province
- Authors: Pama, Mzingisi Nimrod
- Date: 2008
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16160 , http://hdl.handle.net/10353/186
- Description: The research interest in this study was on learners’ perceptions on the factors that influence learners to use and abuse drugs. This study discussed learner understanding of drug use and abuse, what learners consider as reasons why learners use and abuse drugs and what could be done to discourage this phenomenon. The investigation was carried in the central region of the Eastern Cape in Fort Beaufort District. This district covers the rural areas of Nkonkobe municipality. I made use of qualitative methodology to obtain data from a sample of 56 learners and 12 teachers including the principal of the school. This study is located in one high school in the Fort Beaufort District. Methods used included learner surveys, learners’ focus group discussions, teachers’ focus discussions, learners individual interviews as well as document analysis. A major finding in this study indicates that learners understood what drugs as well as heir effects on those who use and abused them. The learners also unpacked factors that contribute to this phenomenon, which include peer pressure, socialization, stress and others. Teachers and learners also suggested ways in which drug use can be discouraged. Teacher also acknowledged that there was a drug problem amongst learners in their school and that something should urgently be done to discourage this phenomenon.
- Full Text:
- Date Issued: 2008
- Authors: Pama, Mzingisi Nimrod
- Date: 2008
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16160 , http://hdl.handle.net/10353/186
- Description: The research interest in this study was on learners’ perceptions on the factors that influence learners to use and abuse drugs. This study discussed learner understanding of drug use and abuse, what learners consider as reasons why learners use and abuse drugs and what could be done to discourage this phenomenon. The investigation was carried in the central region of the Eastern Cape in Fort Beaufort District. This district covers the rural areas of Nkonkobe municipality. I made use of qualitative methodology to obtain data from a sample of 56 learners and 12 teachers including the principal of the school. This study is located in one high school in the Fort Beaufort District. Methods used included learner surveys, learners’ focus group discussions, teachers’ focus discussions, learners individual interviews as well as document analysis. A major finding in this study indicates that learners understood what drugs as well as heir effects on those who use and abused them. The learners also unpacked factors that contribute to this phenomenon, which include peer pressure, socialization, stress and others. Teachers and learners also suggested ways in which drug use can be discouraged. Teacher also acknowledged that there was a drug problem amongst learners in their school and that something should urgently be done to discourage this phenomenon.
- Full Text:
- Date Issued: 2008
Investigating the potential for the application of lean manufacturing in the can coating plant at Duco Coatings
- Authors: Erasmus, Deidre Felicia
- Date: 2008
- Subjects: Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8579 , http://hdl.handle.net/10948/949 , Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Description: Companies are constantly expected to be more competitive while working in an environment in which time and cost are limited, thereby preventing such companies from taking the time required to be responsive. It is, therefore, important that companies understand that conventional knowledge and methods will not serve unless there is a concerted focus on improvement of organisational performance toward fulfilling increased expectations, not just maintaining that which is comfortable. A more sustainable approach may be the introduction of lean manufacturing techniques. The lean manufacturing process is one that continuously strives to eliminate waste, thereby increasing the percentage of time that may be devoted to value-adding activities. Lean manufacturing principles were applied in the Can Coating Plant of Duco Speciality Coatings. This study was intended to identify waste in the current production process in the Can Coating Plant and then to use lean tools and principles to eliminate such waste. Implementation of these lean tools proved to result in a leaner and more value-adding process. The new process rendered a positive result on Duco Coating’s costs, quality and product performance. Recommendations on further improvements were also offered.
- Full Text:
- Date Issued: 2008
- Authors: Erasmus, Deidre Felicia
- Date: 2008
- Subjects: Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8579 , http://hdl.handle.net/10948/949 , Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Description: Companies are constantly expected to be more competitive while working in an environment in which time and cost are limited, thereby preventing such companies from taking the time required to be responsive. It is, therefore, important that companies understand that conventional knowledge and methods will not serve unless there is a concerted focus on improvement of organisational performance toward fulfilling increased expectations, not just maintaining that which is comfortable. A more sustainable approach may be the introduction of lean manufacturing techniques. The lean manufacturing process is one that continuously strives to eliminate waste, thereby increasing the percentage of time that may be devoted to value-adding activities. Lean manufacturing principles were applied in the Can Coating Plant of Duco Speciality Coatings. This study was intended to identify waste in the current production process in the Can Coating Plant and then to use lean tools and principles to eliminate such waste. Implementation of these lean tools proved to result in a leaner and more value-adding process. The new process rendered a positive result on Duco Coating’s costs, quality and product performance. Recommendations on further improvements were also offered.
- Full Text:
- Date Issued: 2008
Investigating the role of portfolios in developing reflective practice : a case study
- Authors: Mbango, Karolina Naango
- Date: 2008
- Subjects: Portfolios in education -- Namibia -- Case studies Student teachers -- Namibia -- Case studies Teachers -- Training of -- Namibia -- Case studies Teacher educators -- Namibia -- Case studies Reflective teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1595 , http://hdl.handle.net/10962/d1003477
- Description: The purpose of this study was to investigate the purpose and role portfolios are playing in developing reflective practice in student teachers and to assess the degree to which this role is being achieved in practice. This study was a interpretive small scale case study. The target groups were 3 student teachers in their final year of study, 3 teacher educators and the vice-rector of the college. Data were obtained through interviews and document analysis. The findings indicated that the students had no meaningful orientation to both the role of portfolio development and reflective skills. The sources of this were the lack of common understanding among teacher educators, lack of support for both teacher educators and student teachers and lack of time, lack of guidelines for construction and clear assessment rubric. The results of this study indicated that the teacher educators were in need of vigorous professional development and considerable implementation strategies are needed to develop the desired reflective skills.
- Full Text:
- Date Issued: 2008
- Authors: Mbango, Karolina Naango
- Date: 2008
- Subjects: Portfolios in education -- Namibia -- Case studies Student teachers -- Namibia -- Case studies Teachers -- Training of -- Namibia -- Case studies Teacher educators -- Namibia -- Case studies Reflective teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1595 , http://hdl.handle.net/10962/d1003477
- Description: The purpose of this study was to investigate the purpose and role portfolios are playing in developing reflective practice in student teachers and to assess the degree to which this role is being achieved in practice. This study was a interpretive small scale case study. The target groups were 3 student teachers in their final year of study, 3 teacher educators and the vice-rector of the college. Data were obtained through interviews and document analysis. The findings indicated that the students had no meaningful orientation to both the role of portfolio development and reflective skills. The sources of this were the lack of common understanding among teacher educators, lack of support for both teacher educators and student teachers and lack of time, lack of guidelines for construction and clear assessment rubric. The results of this study indicated that the teacher educators were in need of vigorous professional development and considerable implementation strategies are needed to develop the desired reflective skills.
- Full Text:
- Date Issued: 2008
Investigation of polarization mode dispersion measurement perfomance in optical fibre with a focus on the fixed analyzer technique
- Gamatham, Romeo Reginald Gunther
- Authors: Gamatham, Romeo Reginald Gunther
- Date: 2008
- Subjects: Fiber optics , Polarization (Light)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10524 , http://hdl.handle.net/10948/957 , Fiber optics , Polarization (Light)
- Description: The work presented in this dissertation is a comparative study of polarization mode dispersion (PMD) measurement performance where the fixed analyzer (FA) technique was built and tested for the first time in South Africa. Techniques involved in the study are: the Jones matrix eigenanalysis (JME), generalised interferometric technique (GINTY) and the FA technique, with a particular focus on the FA technique. The FA PMD measurement technique determines the average differential group delay (DGD) from the transmitted intensity spectrum through a polarizer and has three analysis methods (extrema counting, mean level crossing and Fourier analysis) which were all evaluated. PMD measurements were performed in the laboratory on several different fibre types and in the field on buried deployed Telkom fibre links (28.8 km). The techniques showed good agreement in the measured PMD value, both in the laboratory and field measurements. In particular very good agreement was found between the JME average DGD and the extrema counting analysis PMD value. The GINTY and FA Fourier analysis method also gave very similar PMD values. It was found that the fibre birefringence and the mode coupling manifest in different ways on the intensity spectrum. By using the FA ratio method, the length regimes of the different fibre types were determined. Three characteristics of the FA technique were investigated, namely: wavelength window variation, sampling and input SOP scrambling. It was found that the wavelength window and the PMD are inversely proportional. Correct sampling plays a significant role in determining the correct measured PMD value. Lastly an average PMD value over the PMD values for different input SOPs serves as a better representation of the true PMD value. An additional study showed that the FA technique and a developed Poincaré sphere analysis method agree very well regarding the PMD value.
- Full Text:
- Date Issued: 2008
- Authors: Gamatham, Romeo Reginald Gunther
- Date: 2008
- Subjects: Fiber optics , Polarization (Light)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10524 , http://hdl.handle.net/10948/957 , Fiber optics , Polarization (Light)
- Description: The work presented in this dissertation is a comparative study of polarization mode dispersion (PMD) measurement performance where the fixed analyzer (FA) technique was built and tested for the first time in South Africa. Techniques involved in the study are: the Jones matrix eigenanalysis (JME), generalised interferometric technique (GINTY) and the FA technique, with a particular focus on the FA technique. The FA PMD measurement technique determines the average differential group delay (DGD) from the transmitted intensity spectrum through a polarizer and has three analysis methods (extrema counting, mean level crossing and Fourier analysis) which were all evaluated. PMD measurements were performed in the laboratory on several different fibre types and in the field on buried deployed Telkom fibre links (28.8 km). The techniques showed good agreement in the measured PMD value, both in the laboratory and field measurements. In particular very good agreement was found between the JME average DGD and the extrema counting analysis PMD value. The GINTY and FA Fourier analysis method also gave very similar PMD values. It was found that the fibre birefringence and the mode coupling manifest in different ways on the intensity spectrum. By using the FA ratio method, the length regimes of the different fibre types were determined. Three characteristics of the FA technique were investigated, namely: wavelength window variation, sampling and input SOP scrambling. It was found that the wavelength window and the PMD are inversely proportional. Correct sampling plays a significant role in determining the correct measured PMD value. Lastly an average PMD value over the PMD values for different input SOPs serves as a better representation of the true PMD value. An additional study showed that the FA technique and a developed Poincaré sphere analysis method agree very well regarding the PMD value.
- Full Text:
- Date Issued: 2008
Isolation and characterization of antiplasmodial metabolites from South African marine alga
- Authors: Afolayan, Anthonia Folake
- Date: 2008
- Subjects: Malaria -- Africa Antimalarials -- Therapeutic use Malaria -- Prevention Malaria -- Drug therapy Marine algae -- Therapeutic use Natural products -- Therapeutic use Plasmodium
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3739 , http://hdl.handle.net/10962/d1003063
- Description: Malaria is one of the three most deadly diseases in Africa. Although there are available treatments, their efficacy has been greatly reduced over the past two decades due to the development of resistance to currently available drugs. This has necessitated the search for new and effective antimalarial agents. This project approached the search for new antimalarial compounds in two ways: (i) by screening natural products isolated from marine algae against the Plasmodium parasite and (ii) by modification of selected isolated active compounds to target 1-deoxY-đ-xylulose 5-phosphate reductoisomerase (DXR), an enzyme found in the nonmevalonate isoprenoid biosynthetic pathway of Plasmodium Jalciparum. It was envisaged that such a compound would exhibit dual action on the Plasmodium parasite. Extracts obtained from 22 marine algae were prefractionated by solvent partitioning and were screened for anti plasmodial activity against the chloroquine sensitive (CQS) P. Jalciparum D 10 strain. Overall, 50% of the algae screened produced at least one crude fraction with activity against P. Jalciparum. Extracts of the algae Sargassum heterophyllum, Plocamium cornutum, Amphiroa ephedrea and Pterosiphonia cloiophylla gave the most promising results. Fractionation of S. heterophyllum afforded three tetraprenyltoluquinols (3.1, 3.2 and 3.5) and an all-trans-fucoxanthin (3.6). Three new compounds (4.5, 4.6 and 4.7) and two known halogenated monoterpenes (4.1 and 4.4) were isolated from P. cornutum. Each of the isolated compounds from both S. heterophyllum and P. cornutum showed antiplasmodial activity with IC₅₀ values ranging from 2.0 - 15.3 μM for S. heterophyllum and 13 - 230 μM for P. cornutum. Attempts to synthetically modify halogenated monoterpene 4.4 by dihydroxylation and phosphorylation in order to inhibit the DXR enzyme was unsuccessful. However, the hemiterpene analogue (5.42) of the halogenated monoterpenes was successfully phosphorylated and dihydroxylated to give compound 5.45 which showed promising activity against DXR. The result obtained indicated that the proposed phosphorylation and dihydroxylation of the halogenated monoterpene 4.4 would result in the synthesis of a potent DXR inhibitor and therefore a potential antimalarial agent with dual mode of action on the Plasmodium parasite.
- Full Text:
- Date Issued: 2008
- Authors: Afolayan, Anthonia Folake
- Date: 2008
- Subjects: Malaria -- Africa Antimalarials -- Therapeutic use Malaria -- Prevention Malaria -- Drug therapy Marine algae -- Therapeutic use Natural products -- Therapeutic use Plasmodium
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3739 , http://hdl.handle.net/10962/d1003063
- Description: Malaria is one of the three most deadly diseases in Africa. Although there are available treatments, their efficacy has been greatly reduced over the past two decades due to the development of resistance to currently available drugs. This has necessitated the search for new and effective antimalarial agents. This project approached the search for new antimalarial compounds in two ways: (i) by screening natural products isolated from marine algae against the Plasmodium parasite and (ii) by modification of selected isolated active compounds to target 1-deoxY-đ-xylulose 5-phosphate reductoisomerase (DXR), an enzyme found in the nonmevalonate isoprenoid biosynthetic pathway of Plasmodium Jalciparum. It was envisaged that such a compound would exhibit dual action on the Plasmodium parasite. Extracts obtained from 22 marine algae were prefractionated by solvent partitioning and were screened for anti plasmodial activity against the chloroquine sensitive (CQS) P. Jalciparum D 10 strain. Overall, 50% of the algae screened produced at least one crude fraction with activity against P. Jalciparum. Extracts of the algae Sargassum heterophyllum, Plocamium cornutum, Amphiroa ephedrea and Pterosiphonia cloiophylla gave the most promising results. Fractionation of S. heterophyllum afforded three tetraprenyltoluquinols (3.1, 3.2 and 3.5) and an all-trans-fucoxanthin (3.6). Three new compounds (4.5, 4.6 and 4.7) and two known halogenated monoterpenes (4.1 and 4.4) were isolated from P. cornutum. Each of the isolated compounds from both S. heterophyllum and P. cornutum showed antiplasmodial activity with IC₅₀ values ranging from 2.0 - 15.3 μM for S. heterophyllum and 13 - 230 μM for P. cornutum. Attempts to synthetically modify halogenated monoterpene 4.4 by dihydroxylation and phosphorylation in order to inhibit the DXR enzyme was unsuccessful. However, the hemiterpene analogue (5.42) of the halogenated monoterpenes was successfully phosphorylated and dihydroxylated to give compound 5.45 which showed promising activity against DXR. The result obtained indicated that the proposed phosphorylation and dihydroxylation of the halogenated monoterpene 4.4 would result in the synthesis of a potent DXR inhibitor and therefore a potential antimalarial agent with dual mode of action on the Plasmodium parasite.
- Full Text:
- Date Issued: 2008
Isolation, purification and characterization of a 'factor' from Fusarium oxysporum responsible for platinum nanoparticle formation
- Authors: Govender, Yageshni
- Date: 2008
- Subjects: Nanoparticles , Platinum , Fusarium oxysporum , Fungi , Hydragenase
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3923 , http://hdl.handle.net/10962/d1003982 , Nanoparticles , Platinum , Fusarium oxysporum , Fungi , Hydragenase
- Description: Nanoparticles are microscopic particles in the nanometre range of between 1-100 nm. A wide variety of metal nanoparticles have been found to be produced by prokaryotic and eukaryotic organisms including several fungal species, when exposed to solutions containing metal salts. Previous studies have suggested that this bioreduction of metal particles may occur via an active reductase/hydrogenase enzyme process where H2 is the electron donor and positively charged platinum species act as the electron acceptors becoming reduced to a neutral metal nanoparticle. In view of this on going research, the current study investigated the “factors” in the fungus Fusarium oxysporum which were responsible for platinum nanoparticle formation. The fungus F.oxysporum was used in this study as it has been previously shown to produce a variety of nanoparticles including gold and silver. During exposure of the biomass to H2PtCl6 the initial response to the platinum salts was metal internalisation and subsequent reduction of H2PtCI6 to produce platinum nanoparticles. The observed localization and distribution of platinum precipitates provided some evidence for a hydrogenase mediated bioreduction of platinum salts to produce nanoparticles. Factors secreted by the fungus into the extracellular fluids, were shown to be responsible for platinum nanoparticle formation. From the identification, purification and characterisation studies it was concluded that a hydrogenase and other “factors” were responsible for platinum nanoparticle formation in F.oxysporum. Purification of the hydrogenase by freeze-drying and Sephacryl S200 size exclusion- ion exchange chromatography revealed the enzyme to be a dimer with a 29.4 and 44.5 kDa when analysed by a 10 % SDS-PAGE. Characterisation of the enzyme revealed optimal activity at a pH of 7.5 and temperature of 38 °C while it exhibited a poor thermal stability with a half life of 36 minutes. The kinetic parameters Vmax and Km were 3.16 U ml-1 and 3.64 mM respectively. The purified hydrogenase was used in subsequent experiments for the reduction of platinum salts, H2PtCl6 and PtCl2. the results indicated an over 90 % reduction of the platinum salts and TEM micrographs indicated the production of platinum nanoparticles under the various experimental conditions.
- Full Text:
- Date Issued: 2008
- Authors: Govender, Yageshni
- Date: 2008
- Subjects: Nanoparticles , Platinum , Fusarium oxysporum , Fungi , Hydragenase
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3923 , http://hdl.handle.net/10962/d1003982 , Nanoparticles , Platinum , Fusarium oxysporum , Fungi , Hydragenase
- Description: Nanoparticles are microscopic particles in the nanometre range of between 1-100 nm. A wide variety of metal nanoparticles have been found to be produced by prokaryotic and eukaryotic organisms including several fungal species, when exposed to solutions containing metal salts. Previous studies have suggested that this bioreduction of metal particles may occur via an active reductase/hydrogenase enzyme process where H2 is the electron donor and positively charged platinum species act as the electron acceptors becoming reduced to a neutral metal nanoparticle. In view of this on going research, the current study investigated the “factors” in the fungus Fusarium oxysporum which were responsible for platinum nanoparticle formation. The fungus F.oxysporum was used in this study as it has been previously shown to produce a variety of nanoparticles including gold and silver. During exposure of the biomass to H2PtCl6 the initial response to the platinum salts was metal internalisation and subsequent reduction of H2PtCI6 to produce platinum nanoparticles. The observed localization and distribution of platinum precipitates provided some evidence for a hydrogenase mediated bioreduction of platinum salts to produce nanoparticles. Factors secreted by the fungus into the extracellular fluids, were shown to be responsible for platinum nanoparticle formation. From the identification, purification and characterisation studies it was concluded that a hydrogenase and other “factors” were responsible for platinum nanoparticle formation in F.oxysporum. Purification of the hydrogenase by freeze-drying and Sephacryl S200 size exclusion- ion exchange chromatography revealed the enzyme to be a dimer with a 29.4 and 44.5 kDa when analysed by a 10 % SDS-PAGE. Characterisation of the enzyme revealed optimal activity at a pH of 7.5 and temperature of 38 °C while it exhibited a poor thermal stability with a half life of 36 minutes. The kinetic parameters Vmax and Km were 3.16 U ml-1 and 3.64 mM respectively. The purified hydrogenase was used in subsequent experiments for the reduction of platinum salts, H2PtCl6 and PtCl2. the results indicated an over 90 % reduction of the platinum salts and TEM micrographs indicated the production of platinum nanoparticles under the various experimental conditions.
- Full Text:
- Date Issued: 2008
Job stress, burnout and coping strategies of South African police officers
- Authors: Myendeki, Akhona Nangamso
- Date: 2008
- Subjects: Burn out (Psychology) , Stress management , Police -- South Africa , Police -- Job stress , Stress (Psychology) , Job stress
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11859 , http://hdl.handle.net/10353/136 , Burn out (Psychology) , Stress management , Police -- South Africa , Police -- Job stress , Stress (Psychology) , Job stress
- Description: The aim of this study was to determine whether coping strategies of police officers help moderate the outcome of burnout resulting from job stress. The nature of the job demands of police officers is such that they may experience high levels of stress. A convenience sample (N = 89: n Males = 58; n Female = 29) of police officers in police stations in the Eastern Cape was surveyed. The Maslach Burnout Inventory – General Survey, Police Stress Inventory and COPE questionnaire were administered. Results for all the participants indicate that when the occupational stressor Lack of Resources occurs police officers implement Avoidance Coping (COPE) as a strategy, which leads to the experience of Exhaustion. Results also indicate that police officers use Active Coping, Cognitive Coping and Turning to Religion as means of moderating the stress-burnout relationship. Results also show that the coping strategy Avoidance Coping, used by male officers lead to Cynicism. When female police officers experience Job Demands and a Lack of Resources they make use of Seeking Emotional Support as a coping strategy. Male police officers were shown to make use of Active Coping as a strategy to regulate the stress-burnout relationship while female police officers implemented Active Coping and Turning to Religion to act as a buffer between job stress and burnout.
- Full Text:
- Date Issued: 2008
- Authors: Myendeki, Akhona Nangamso
- Date: 2008
- Subjects: Burn out (Psychology) , Stress management , Police -- South Africa , Police -- Job stress , Stress (Psychology) , Job stress
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11859 , http://hdl.handle.net/10353/136 , Burn out (Psychology) , Stress management , Police -- South Africa , Police -- Job stress , Stress (Psychology) , Job stress
- Description: The aim of this study was to determine whether coping strategies of police officers help moderate the outcome of burnout resulting from job stress. The nature of the job demands of police officers is such that they may experience high levels of stress. A convenience sample (N = 89: n Males = 58; n Female = 29) of police officers in police stations in the Eastern Cape was surveyed. The Maslach Burnout Inventory – General Survey, Police Stress Inventory and COPE questionnaire were administered. Results for all the participants indicate that when the occupational stressor Lack of Resources occurs police officers implement Avoidance Coping (COPE) as a strategy, which leads to the experience of Exhaustion. Results also indicate that police officers use Active Coping, Cognitive Coping and Turning to Religion as means of moderating the stress-burnout relationship. Results also show that the coping strategy Avoidance Coping, used by male officers lead to Cynicism. When female police officers experience Job Demands and a Lack of Resources they make use of Seeking Emotional Support as a coping strategy. Male police officers were shown to make use of Active Coping as a strategy to regulate the stress-burnout relationship while female police officers implemented Active Coping and Turning to Religion to act as a buffer between job stress and burnout.
- Full Text:
- Date Issued: 2008
Journalists' appropriation of ICTs in news-gathering and processing: a case study of Grocott's Mail
- Authors: Dugo, Habtamu Tesfaye
- Date: 2008
- Subjects: Grocott's Mail (Grahamstown, South Africa) Journalism -- South Africa -- Grahamstown Journalists -- South Africa -- Grahamstown Electronic news gathering -- South Africa -- Grahamstown Journalism -- Data processing -- South Africa -- Grahamstown Information technology -- South Africa -- Grahamstown Reporters and reporting -- South Africa -- Grahamstown Communication and technology -- South Africa -- Grahamstown
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3427 , http://hdl.handle.net/10962/d1002881
- Description: This study set out to investigate Grocott’s Mail journalists’ appropriation of information and communication technologies in news-gathering and processing using the social shaping of technology as a theoretical lens. It mainly focuses on digital ICTs that journalists use in news-gathering and processing including the Internet, electronic mail, and mobile telephony. Grocott’s Mail is a small-scale newspaper based in Grahamstown, South Africa. Using qualitative research method and the case study as its sub-method, the research reveals that Grocott’s Mail journalists’ appropriation of ICTs involves various opportunities and challenges in news-gathering and processing. In terms of the state of the existing technological infrastructure, the study reveals that since it embraced the digital ICTs in 2003, Grocott’s Mail boasts an adequate ICT infrastructure for a small-scale African newspaper with 30 PCs and one laptop, and professional software for 28 permanent employees. On the other hand, the research reveals serious constraints with the existing ICTs: a huge need for staff training and capacity building to fully utilise the ICTs, and the need to look for ways of raising funds to either upgrade or replace the existing ICTs. Grocott’s Mail journalists use the Internet to do background research on news stories, to verify the accuracy of information, and to check competition across other media. These are the merits of the Internet in news-gathering and processing. On the other hand, there are specific unintended consequences of the Internet such as wasting the company’s working time, and its use leading to lazy/press release journalism. Informants unanimously indicate that the main problems of the Internet are heavy dependence on other online news-sources and wasting time on online entertainment. In terms of using email in news-gathering, the research finds email technology as having advantages such as being a tool of flexibility and speed, a tool for email interviews, and as a technology that promotes participatory journalism. On the other hand, challenges related to email include its limitations because of what interviewees view as its supplementary and small-scale use because of its low contextual richness as opposed to face to face interviews. In terms of cellular telephony, the study finds that regardless of the ubiquity of cell phones and cell phone networks, they have not yet been deployed in news-gathering and processing due to various constraints. These are cell phones not being a big factor in reporting, lack of a proper funding and refunding scheme, prevalence of negative attitudes towards cell phones, and lack of a business model. Thus, cellular phones seem to have little or no relevance in news-gathering and processing at Grocott’s Mail presently.
- Full Text:
- Date Issued: 2008
- Authors: Dugo, Habtamu Tesfaye
- Date: 2008
- Subjects: Grocott's Mail (Grahamstown, South Africa) Journalism -- South Africa -- Grahamstown Journalists -- South Africa -- Grahamstown Electronic news gathering -- South Africa -- Grahamstown Journalism -- Data processing -- South Africa -- Grahamstown Information technology -- South Africa -- Grahamstown Reporters and reporting -- South Africa -- Grahamstown Communication and technology -- South Africa -- Grahamstown
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3427 , http://hdl.handle.net/10962/d1002881
- Description: This study set out to investigate Grocott’s Mail journalists’ appropriation of information and communication technologies in news-gathering and processing using the social shaping of technology as a theoretical lens. It mainly focuses on digital ICTs that journalists use in news-gathering and processing including the Internet, electronic mail, and mobile telephony. Grocott’s Mail is a small-scale newspaper based in Grahamstown, South Africa. Using qualitative research method and the case study as its sub-method, the research reveals that Grocott’s Mail journalists’ appropriation of ICTs involves various opportunities and challenges in news-gathering and processing. In terms of the state of the existing technological infrastructure, the study reveals that since it embraced the digital ICTs in 2003, Grocott’s Mail boasts an adequate ICT infrastructure for a small-scale African newspaper with 30 PCs and one laptop, and professional software for 28 permanent employees. On the other hand, the research reveals serious constraints with the existing ICTs: a huge need for staff training and capacity building to fully utilise the ICTs, and the need to look for ways of raising funds to either upgrade or replace the existing ICTs. Grocott’s Mail journalists use the Internet to do background research on news stories, to verify the accuracy of information, and to check competition across other media. These are the merits of the Internet in news-gathering and processing. On the other hand, there are specific unintended consequences of the Internet such as wasting the company’s working time, and its use leading to lazy/press release journalism. Informants unanimously indicate that the main problems of the Internet are heavy dependence on other online news-sources and wasting time on online entertainment. In terms of using email in news-gathering, the research finds email technology as having advantages such as being a tool of flexibility and speed, a tool for email interviews, and as a technology that promotes participatory journalism. On the other hand, challenges related to email include its limitations because of what interviewees view as its supplementary and small-scale use because of its low contextual richness as opposed to face to face interviews. In terms of cellular telephony, the study finds that regardless of the ubiquity of cell phones and cell phone networks, they have not yet been deployed in news-gathering and processing due to various constraints. These are cell phones not being a big factor in reporting, lack of a proper funding and refunding scheme, prevalence of negative attitudes towards cell phones, and lack of a business model. Thus, cellular phones seem to have little or no relevance in news-gathering and processing at Grocott’s Mail presently.
- Full Text:
- Date Issued: 2008
Land management in the Wild Coast: the case of indigenous people in Coffee Bay, Eastern Cape, South Africa
- Authors: Kalumba, Ahmed Mukalazi
- Date: 2008
- Subjects: Land use -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Geography)
- Identifier: vital:11514 , http://hdl.handle.net/10353/79 , Land use -- South Africa -- Eastern Cape
- Description: An under-reported consequence of the democratic transition is the impact on land management (LM) within communal areas of South Africa (SA).Yet land is an essential natural resource, both for the survival and prosperity of humanity, and for the maintenance of all terrestrial ecosystems (FAO&UNEP,1997.)This study focuses on land management in the Wild Coast with special reference to indigenous people in Coffee Bay.Using the concept of the land management paradigm, the study adopts an intensive research design for the analysis and interpretation of data.The study aims to examine how land as a 'resource'is managed by the local indigenous people with special reference to wether it is moving towards or away from sustainability.The study discusses LM in the rural-built up environment with emphasis on land based activities, land tenure, gender issues,indigenous knowledge systems, changes in land use and degradation.The study looks at the indigenous people's participation in the new LM policy formation as predetermined by the grand scheme of democratization and decentralization.It highlights that indigenous knowledge systems are at the centre in rural sustainable LM, and equity in land issues forms another breakthrough for communal tenure system in the new SA.Indigenous people's views in policy formulation are not necessarily matched with national policy objectives due to poor public consultation.In general, the study provides an understanding of how indigenous people grapple with new policy changes in LM, to ensure sustainable land management in the rural South Africa
- Full Text:
- Date Issued: 2008
- Authors: Kalumba, Ahmed Mukalazi
- Date: 2008
- Subjects: Land use -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Geography)
- Identifier: vital:11514 , http://hdl.handle.net/10353/79 , Land use -- South Africa -- Eastern Cape
- Description: An under-reported consequence of the democratic transition is the impact on land management (LM) within communal areas of South Africa (SA).Yet land is an essential natural resource, both for the survival and prosperity of humanity, and for the maintenance of all terrestrial ecosystems (FAO&UNEP,1997.)This study focuses on land management in the Wild Coast with special reference to indigenous people in Coffee Bay.Using the concept of the land management paradigm, the study adopts an intensive research design for the analysis and interpretation of data.The study aims to examine how land as a 'resource'is managed by the local indigenous people with special reference to wether it is moving towards or away from sustainability.The study discusses LM in the rural-built up environment with emphasis on land based activities, land tenure, gender issues,indigenous knowledge systems, changes in land use and degradation.The study looks at the indigenous people's participation in the new LM policy formation as predetermined by the grand scheme of democratization and decentralization.It highlights that indigenous knowledge systems are at the centre in rural sustainable LM, and equity in land issues forms another breakthrough for communal tenure system in the new SA.Indigenous people's views in policy formulation are not necessarily matched with national policy objectives due to poor public consultation.In general, the study provides an understanding of how indigenous people grapple with new policy changes in LM, to ensure sustainable land management in the rural South Africa
- Full Text:
- Date Issued: 2008
Larval fish dynamics in the shallow nearshore of Eastern Algoa Bay with particular emphasis on the effects of currents and swimming abilities on dispersal
- Authors: Pattrick, Paula
- Date: 2008
- Subjects: Fishes -- Larvae -- Eastern Cape -- Algoa Bay , Marine parks and reserves -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Ecology -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Dispersal -- Eastern Cape -- Algoa Bay , Fishes -- Development -- Eastern Cape -- Algoa Bay
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5294 , http://hdl.handle.net/10962/d1005139 , Fishes -- Larvae -- Eastern Cape -- Algoa Bay , Marine parks and reserves -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Ecology -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Dispersal -- Eastern Cape -- Algoa Bay , Fishes -- Development -- Eastern Cape -- Algoa Bay
- Description: The larval fish assemblage in the shallow, nearshore region of a proposed marine protected area (MPA) in eastern Algoa Bay, temperate South Africa was investigated. Current velocities and direction and the swimming abilities of late-stage larvae were further assessed to determine potential larval movement to and from the MPA. In total, 6045 larval fishes were collected along two depth contours (~5m and ~15m) in the shallow nearshore of eastern Algoa Bay using stepped-oblique bongo net tows, twice per season for two years (March 2005 – January 2007). These larvae represented 32 families and 78 species. The Gobiidae, Cynoglossidae, Clupeidae, Engraulidae and Sparidae were the dominant fish families. Catches varied significantly between seasons peaking in spring with a mean of 64 larvae/100m3. Preflexion stage larvae dominated catches (75%). All developmental stages of Diplodus capensis, Engraulis capensis, Heteromycteris capensis, Sardinops sagax and Pomadasys species were found in the study area. It appears that these species use the shallow nearshore as a nursery area. Analysis of 12 months (May 2006 – May 2007) data from a bottom-moored Acoustic Doppler Current Profiler within the study area showed that offshore south eastward (39%) and onshore north westward currents (33%) dominated. The south westward current (15%) and north eastward current (12%) occurred less frequently. Current velocity decreased with depth in the nearshore, with a mean velocity of ~29 cms⁻¹ recorded at a depth of 4 m and a mean velocity of ~11 cms⁻¹ recorded at a depth of 14 m. Understanding the dispersal and movement of marine fish larvae in coastal habitats requires knowledge of active swimming abilities. The critical speed and endurance swimming of late stage larvae of two common inshore species occurring in the study area, Diplodus capensis and Sarpa salpa (Family Sparidae), were measured in a laboratory swimming chamber. The mean U-crit value for D. capensis (18.6 cms⁻¹) was similar to that of S. salpa (18.0 cms⁻¹), whereas mean endurance (km swum) was greater in S. salpa (8.4 km) than D. capensis (5.9 km). These swimming abilities exceed the average current velocities observed in the shallow nearshore providing larvae with the ability to greatly alter their passive dispersal trajectories and ultimately influence their distribution in the nearshore.
- Full Text:
- Date Issued: 2008
- Authors: Pattrick, Paula
- Date: 2008
- Subjects: Fishes -- Larvae -- Eastern Cape -- Algoa Bay , Marine parks and reserves -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Ecology -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Dispersal -- Eastern Cape -- Algoa Bay , Fishes -- Development -- Eastern Cape -- Algoa Bay
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5294 , http://hdl.handle.net/10962/d1005139 , Fishes -- Larvae -- Eastern Cape -- Algoa Bay , Marine parks and reserves -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Ecology -- Eastern Cape -- Algoa Bay , Fishes -- Larvae -- Dispersal -- Eastern Cape -- Algoa Bay , Fishes -- Development -- Eastern Cape -- Algoa Bay
- Description: The larval fish assemblage in the shallow, nearshore region of a proposed marine protected area (MPA) in eastern Algoa Bay, temperate South Africa was investigated. Current velocities and direction and the swimming abilities of late-stage larvae were further assessed to determine potential larval movement to and from the MPA. In total, 6045 larval fishes were collected along two depth contours (~5m and ~15m) in the shallow nearshore of eastern Algoa Bay using stepped-oblique bongo net tows, twice per season for two years (March 2005 – January 2007). These larvae represented 32 families and 78 species. The Gobiidae, Cynoglossidae, Clupeidae, Engraulidae and Sparidae were the dominant fish families. Catches varied significantly between seasons peaking in spring with a mean of 64 larvae/100m3. Preflexion stage larvae dominated catches (75%). All developmental stages of Diplodus capensis, Engraulis capensis, Heteromycteris capensis, Sardinops sagax and Pomadasys species were found in the study area. It appears that these species use the shallow nearshore as a nursery area. Analysis of 12 months (May 2006 – May 2007) data from a bottom-moored Acoustic Doppler Current Profiler within the study area showed that offshore south eastward (39%) and onshore north westward currents (33%) dominated. The south westward current (15%) and north eastward current (12%) occurred less frequently. Current velocity decreased with depth in the nearshore, with a mean velocity of ~29 cms⁻¹ recorded at a depth of 4 m and a mean velocity of ~11 cms⁻¹ recorded at a depth of 14 m. Understanding the dispersal and movement of marine fish larvae in coastal habitats requires knowledge of active swimming abilities. The critical speed and endurance swimming of late stage larvae of two common inshore species occurring in the study area, Diplodus capensis and Sarpa salpa (Family Sparidae), were measured in a laboratory swimming chamber. The mean U-crit value for D. capensis (18.6 cms⁻¹) was similar to that of S. salpa (18.0 cms⁻¹), whereas mean endurance (km swum) was greater in S. salpa (8.4 km) than D. capensis (5.9 km). These swimming abilities exceed the average current velocities observed in the shallow nearshore providing larvae with the ability to greatly alter their passive dispersal trajectories and ultimately influence their distribution in the nearshore.
- Full Text:
- Date Issued: 2008
Lattice-valued uniform convergence spaces the case of enriched lattices
- Authors: Craig, Andrew Philip Knott
- Date: 2008
- Subjects: Lattice theory , Uniform spaces , Convergence
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5411 , http://hdl.handle.net/10962/d1005225 , Lattice theory , Uniform spaces , Convergence
- Description: Using a pseudo-bisymmetric enriched cl-premonoid as the underlying lattice, we examine different categories of lattice-valued spaces. Lattice-valued topological spaces, uniform spaces and limit spaces are described, and we produce a new definition of stratified lattice-valued uniform convergence spaces in this generalised lattice context. We show that the category of stratified L-uniform convergence spaces is topological, and that the forgetful functor preserves initial constructions for the underlying stratified L-limit space. For the case of L a complete Heyting algebra, it is shown that the category of stratified L-uniform convergence spaces is cartesian closed.
- Full Text:
- Date Issued: 2008
- Authors: Craig, Andrew Philip Knott
- Date: 2008
- Subjects: Lattice theory , Uniform spaces , Convergence
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5411 , http://hdl.handle.net/10962/d1005225 , Lattice theory , Uniform spaces , Convergence
- Description: Using a pseudo-bisymmetric enriched cl-premonoid as the underlying lattice, we examine different categories of lattice-valued spaces. Lattice-valued topological spaces, uniform spaces and limit spaces are described, and we produce a new definition of stratified lattice-valued uniform convergence spaces in this generalised lattice context. We show that the category of stratified L-uniform convergence spaces is topological, and that the forgetful functor preserves initial constructions for the underlying stratified L-limit space. For the case of L a complete Heyting algebra, it is shown that the category of stratified L-uniform convergence spaces is cartesian closed.
- Full Text:
- Date Issued: 2008
Learning organisations: an exploration of the extent to which early childhood development non-government organisations (NGOS) in the Eastern Cape Province are learning organisations
- Authors: Hornby, Diana Scot
- Date: 2008
- Subjects: Early childhood education , Child development , Child psychology , Non-governmental organizations -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Soc Sc (Community Development)
- Identifier: vital:11843 , http://hdl.handle.net/10353/242 , Early childhood education , Child development , Child psychology , Non-governmental organizations -- South Africa -- Eastern Cape
- Description: The first decade of democracy marks a massive transition in the life of South African children. The South African Constitution is perhaps the most assertive affirmation of the rights of children any where in the world. The new Government has highlighted the plight of young children by publishing the first white paper for children under the age of 6 years: Education White Paper (5) on Early Childhood Development (RSA, 2001) as well as other policies to guide an integrated developmental approach to early childhood services. Despite progress, according to Porteus (in Chisholm 2004), the gains have not been strong enough to work against the momentum of inequity facing the nation’s young. Non Government Organisations have played a key role over the past thirty years to establish services that address the developmental needs of disadvantaged young children under the age of 6 years. Their challenge now, is to respond to the changes in a transforming state and provide services that are relevant and appropriate. There has been a ‘realignment’ occurring in the ECD sector where activities have shifted beyond the formal classroom possibilities to pro-child social development. This adjustment is making huge demands on the ECD sector as they grapple with the paradigm shift. The Learning Organisation is a strategy that allows organisations to re-invent themselves and remain relevant. The focus of this study examines five ECD NGO’s in the Eastern Cape Province, to assess the extent to which they meet the characteristics that make a learning organisation, in the current democratic context of South Africa. The research was qualitative in nature and utilizing the case study method and through semi-structured interview schedules and document analysis, the researcher was able to gain insight into the Organisations. The Directors in five organisations formed the core of the research sample. The research findings suggest that although the Directors are grappling with the paradigm shift to an integrated, pro-child social development approach, the human resources within organisations are not being fully mobilised, enhanced and tapped. Practicing a Learning Organisation strategy would assist the ECD NGO’s to re-invent themselves, but the research findings suggest that these characteristics remain under-utilized.
- Full Text:
- Date Issued: 2008
- Authors: Hornby, Diana Scot
- Date: 2008
- Subjects: Early childhood education , Child development , Child psychology , Non-governmental organizations -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Soc Sc (Community Development)
- Identifier: vital:11843 , http://hdl.handle.net/10353/242 , Early childhood education , Child development , Child psychology , Non-governmental organizations -- South Africa -- Eastern Cape
- Description: The first decade of democracy marks a massive transition in the life of South African children. The South African Constitution is perhaps the most assertive affirmation of the rights of children any where in the world. The new Government has highlighted the plight of young children by publishing the first white paper for children under the age of 6 years: Education White Paper (5) on Early Childhood Development (RSA, 2001) as well as other policies to guide an integrated developmental approach to early childhood services. Despite progress, according to Porteus (in Chisholm 2004), the gains have not been strong enough to work against the momentum of inequity facing the nation’s young. Non Government Organisations have played a key role over the past thirty years to establish services that address the developmental needs of disadvantaged young children under the age of 6 years. Their challenge now, is to respond to the changes in a transforming state and provide services that are relevant and appropriate. There has been a ‘realignment’ occurring in the ECD sector where activities have shifted beyond the formal classroom possibilities to pro-child social development. This adjustment is making huge demands on the ECD sector as they grapple with the paradigm shift. The Learning Organisation is a strategy that allows organisations to re-invent themselves and remain relevant. The focus of this study examines five ECD NGO’s in the Eastern Cape Province, to assess the extent to which they meet the characteristics that make a learning organisation, in the current democratic context of South Africa. The research was qualitative in nature and utilizing the case study method and through semi-structured interview schedules and document analysis, the researcher was able to gain insight into the Organisations. The Directors in five organisations formed the core of the research sample. The research findings suggest that although the Directors are grappling with the paradigm shift to an integrated, pro-child social development approach, the human resources within organisations are not being fully mobilised, enhanced and tapped. Practicing a Learning Organisation strategy would assist the ECD NGO’s to re-invent themselves, but the research findings suggest that these characteristics remain under-utilized.
- Full Text:
- Date Issued: 2008
Life history, population dynamics and conservation status of Oldenburgia grandis (Asteraceae), an endemic of the Eastern Cape of South Africa
- Authors: Swart, Carin
- Date: 2008
- Subjects: Compositae , Fynbos ecology -- South Africa -- Eastern Cape , Endemic plants -- South Africa -- Eastern Cape , Rare plants -- South Africa -- Eastern Cape , Plant populations -- South Africa -- Eastern Cape , Vegetation dynamics -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Eastern Cape , Endangered species -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4230 , http://hdl.handle.net/10962/d1003799 , Compositae , Fynbos ecology -- South Africa -- Eastern Cape , Endemic plants -- South Africa -- Eastern Cape , Rare plants -- South Africa -- Eastern Cape , Plant populations -- South Africa -- Eastern Cape , Vegetation dynamics -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Eastern Cape , Endangered species -- South Africa -- Eastern Cape
- Description: Oldenburgia grandis is a rare, long-lived woody paleoendemic of the Fynbos Biome of South Africa. Confined to quartzite outcrops, it has a small geographic range and narrow habitat specificity. O. grandis responds to its fire-prone environment by resprouting. Elasticity analysis of O. grandis reveals that growth and fecundity were traded off for persistence of adult, mature and sapling stages. Morphological adaptations such as a corky fire-resistant bark and the ability to resprout after fire are traits that O. grandis have evolved to persist in a frequently disturbed environment. Population growth rate for sites undisturbed by fire for a number of years (l = 1.01) and sites at various stages of recovery after fire (l = 1.00) were very similar. The highest variation in transition probabilities for all sites was seen in the persistence of the seedling stage and growth from seedling to sapling. Observed population structure and stable stage distribution determined by the matrix model show that sites recently undisturbed by fire had high abundances of the adult and sapling stages. A peak in sapling stages was seen for the stable stage distribution where similar peak in sapling numbers were seen for population structures of sites at various stages of recoveryafter fire. Favourable environmental conditions for the persistence of O. grandis populations include no fire with transition probabilities between the observed minimum and maximum and fire frequency at a 10 year interval where seedling protection from the fire is high and adult and mature mortalities during the fire are low. Stochastic environmental events that could put populations (particularly small populations) at an increased risk of extinction include high to moderate fire intensities where seedling protection from the fire is low and adult and mature mortalities are high as a result of the fire.
- Full Text:
- Date Issued: 2008
- Authors: Swart, Carin
- Date: 2008
- Subjects: Compositae , Fynbos ecology -- South Africa -- Eastern Cape , Endemic plants -- South Africa -- Eastern Cape , Rare plants -- South Africa -- Eastern Cape , Plant populations -- South Africa -- Eastern Cape , Vegetation dynamics -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Eastern Cape , Endangered species -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4230 , http://hdl.handle.net/10962/d1003799 , Compositae , Fynbos ecology -- South Africa -- Eastern Cape , Endemic plants -- South Africa -- Eastern Cape , Rare plants -- South Africa -- Eastern Cape , Plant populations -- South Africa -- Eastern Cape , Vegetation dynamics -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Eastern Cape , Endangered species -- South Africa -- Eastern Cape
- Description: Oldenburgia grandis is a rare, long-lived woody paleoendemic of the Fynbos Biome of South Africa. Confined to quartzite outcrops, it has a small geographic range and narrow habitat specificity. O. grandis responds to its fire-prone environment by resprouting. Elasticity analysis of O. grandis reveals that growth and fecundity were traded off for persistence of adult, mature and sapling stages. Morphological adaptations such as a corky fire-resistant bark and the ability to resprout after fire are traits that O. grandis have evolved to persist in a frequently disturbed environment. Population growth rate for sites undisturbed by fire for a number of years (l = 1.01) and sites at various stages of recovery after fire (l = 1.00) were very similar. The highest variation in transition probabilities for all sites was seen in the persistence of the seedling stage and growth from seedling to sapling. Observed population structure and stable stage distribution determined by the matrix model show that sites recently undisturbed by fire had high abundances of the adult and sapling stages. A peak in sapling stages was seen for the stable stage distribution where similar peak in sapling numbers were seen for population structures of sites at various stages of recoveryafter fire. Favourable environmental conditions for the persistence of O. grandis populations include no fire with transition probabilities between the observed minimum and maximum and fire frequency at a 10 year interval where seedling protection from the fire is high and adult and mature mortalities during the fire are low. Stochastic environmental events that could put populations (particularly small populations) at an increased risk of extinction include high to moderate fire intensities where seedling protection from the fire is low and adult and mature mortalities are high as a result of the fire.
- Full Text:
- Date Issued: 2008
Life in the suburbs after "Grootboom": the role of local government in realising housing rights in the Eastern Cape
- Authors: Kruuse, Helen Julia
- Date: 2008
- Subjects: Right to housing , Human rights -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Housing -- Law and legislation -- South Africa -- Eastern Cape , Housing policy -- South Africa -- Eastern Cape , Low income housing -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3678 , http://hdl.handle.net/10962/d1003193 , Right to housing , Human rights -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Housing -- Law and legislation -- South Africa -- Eastern Cape , Housing policy -- South Africa -- Eastern Cape , Low income housing -- South Africa -- Eastern Cape
- Description: When the Government of National Unity took office in 1994, it inherited a country with severe inequalities in resource distribution and land ownership. In particular, it inherited a housing crisis which was, to a large extent, caused by apartheid legislation and policies. This research focuses on the housing crisis post-1994 by considering the impact and effect of the constitutional right to have access to adequate housing, especially for those living in intolerable conditions. It does so by utilising a social-scientific approach to the law. This approach acknowledges that the housing right must exist alongside other social phenomena and as a part of everyday life in South Africa. Accordingly, the implementation of the housing right by three local municipalities in the Eastern Cape is examined. Following an initial overview of the history of housing and local government in South Africa, the study focuses on the current legislative framework for housing and theinterpretation of the housing right (and other socio-economic rights) in certain court decisions. These decisions are discussed, not only because of the impact they have had on communities living in intolerable situations, but, as importantly, because they have developed standards against which policy and planning should be measured. These standards are used in the study to evaluate housing provision in three municipalities. The evaluation (by means of interviews and assessment of planning documentation) demonstrates that the recognition of the housing right in the Constitution and by the courts does not necessarily translate into effective recognition and implementation by the state. The research shows that the failure to plan proactively, lack of co-operative governance and inadequate controls over financial and human resources thwart the realisation of the housing right by local government. It is recommended that, in order to make the housing right a reality, research into the housing right (and indeed other socio-economic rights) should scrutinise the management of financial and human resources of the state in the context of the policy, planning and implementation environment. Where research is able to show evidence of unspent budgets, insufficient planning and mismanagement of resources, courts would be able to focus on the implementation aspect of the housing right, and ensure that it may yet have a meaningful impact on the lives of millions of some of the most vulnerable people in society.
- Full Text:
- Date Issued: 2008
- Authors: Kruuse, Helen Julia
- Date: 2008
- Subjects: Right to housing , Human rights -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Housing -- Law and legislation -- South Africa -- Eastern Cape , Housing policy -- South Africa -- Eastern Cape , Low income housing -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3678 , http://hdl.handle.net/10962/d1003193 , Right to housing , Human rights -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Housing -- Law and legislation -- South Africa -- Eastern Cape , Housing policy -- South Africa -- Eastern Cape , Low income housing -- South Africa -- Eastern Cape
- Description: When the Government of National Unity took office in 1994, it inherited a country with severe inequalities in resource distribution and land ownership. In particular, it inherited a housing crisis which was, to a large extent, caused by apartheid legislation and policies. This research focuses on the housing crisis post-1994 by considering the impact and effect of the constitutional right to have access to adequate housing, especially for those living in intolerable conditions. It does so by utilising a social-scientific approach to the law. This approach acknowledges that the housing right must exist alongside other social phenomena and as a part of everyday life in South Africa. Accordingly, the implementation of the housing right by three local municipalities in the Eastern Cape is examined. Following an initial overview of the history of housing and local government in South Africa, the study focuses on the current legislative framework for housing and theinterpretation of the housing right (and other socio-economic rights) in certain court decisions. These decisions are discussed, not only because of the impact they have had on communities living in intolerable situations, but, as importantly, because they have developed standards against which policy and planning should be measured. These standards are used in the study to evaluate housing provision in three municipalities. The evaluation (by means of interviews and assessment of planning documentation) demonstrates that the recognition of the housing right in the Constitution and by the courts does not necessarily translate into effective recognition and implementation by the state. The research shows that the failure to plan proactively, lack of co-operative governance and inadequate controls over financial and human resources thwart the realisation of the housing right by local government. It is recommended that, in order to make the housing right a reality, research into the housing right (and indeed other socio-economic rights) should scrutinise the management of financial and human resources of the state in the context of the policy, planning and implementation environment. Where research is able to show evidence of unspent budgets, insufficient planning and mismanagement of resources, courts would be able to focus on the implementation aspect of the housing right, and ensure that it may yet have a meaningful impact on the lives of millions of some of the most vulnerable people in society.
- Full Text:
- Date Issued: 2008
Locating the border the development of the framing device in Western art
- Authors: Leathem, Kevin Wolhuter
- Date: 2008
- Subjects: Picture frames and framing Mural painting and decoration Art museums -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2408 , http://hdl.handle.net/10962/d1002204
- Description: A frame can be understood to act as something both complementary and even intrinsic to the work it houses. But the frame also acts as more than just a physical object. It serves as a guiding principle, perhaps even a controlling device, in the sense that it provides a context for the work as well as informing the way in which a work is read. Acting with the image it surrounds, it links the artwork to the surrounding space as well as the viewer. In this study, I explore these various functions and effects by providing an overview of framing devices that have been used by artists in the West as well as referring to guiding principles that some museums in South Africa have used when making choices about the ways in which they frame works in their collections. This examination provides a context for my paintings. Based on photographs of the walls of various small galleries in the Eastern Cape, my works take as their subject the notion of the ‘frame’ as both a physical object and the marker of a historically contextualized viewpoint.
- Full Text:
- Date Issued: 2008
- Authors: Leathem, Kevin Wolhuter
- Date: 2008
- Subjects: Picture frames and framing Mural painting and decoration Art museums -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2408 , http://hdl.handle.net/10962/d1002204
- Description: A frame can be understood to act as something both complementary and even intrinsic to the work it houses. But the frame also acts as more than just a physical object. It serves as a guiding principle, perhaps even a controlling device, in the sense that it provides a context for the work as well as informing the way in which a work is read. Acting with the image it surrounds, it links the artwork to the surrounding space as well as the viewer. In this study, I explore these various functions and effects by providing an overview of framing devices that have been used by artists in the West as well as referring to guiding principles that some museums in South Africa have used when making choices about the ways in which they frame works in their collections. This examination provides a context for my paintings. Based on photographs of the walls of various small galleries in the Eastern Cape, my works take as their subject the notion of the ‘frame’ as both a physical object and the marker of a historically contextualized viewpoint.
- Full Text:
- Date Issued: 2008
Male perspectives on gender violence in South Africa: the case of Nkonkobe municipal area
- Authors: Danga, Talent
- Date: 2008
- Subjects: Abused wives -- South Africa , Abused women -- South Africa , Family violence -- South Africa , Women -- Crimes against -- South Africa , Family violence -- South Africa -- Research , Family violence -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: vital:11753 , http://hdl.handle.net/10353/180 , Abused wives -- South Africa , Abused women -- South Africa , Family violence -- South Africa , Women -- Crimes against -- South Africa , Family violence -- South Africa -- Research , Family violence -- Law and legislation -- South Africa
- Description: The study explores the experiences of men who perpetrated violence against women in the domestic sphere. The study’s overarching concern is that violence has been largely seen as a women’s problem and not an issue that is central to men and yet in most cases are the perpetrators of this violence. Consequently, men have not been targeted in initiatives that curb domestic violence (Salo, 2005). It is in this frame of reference that this study saw it imperative to focus on the male perspective of gender violence. The study aims to find factors that contribute to male violence and in turn recommend practical and appropriate strategies of dealing with male violence perpetrators. The study drew its theoretical framework largely from the feminist theory, systems theory and the social learning theory in-order to gain insight into the different frameworks for making judgement about male violence against women. Feminists hold the view that, starting with people’s experiences is a powerful tool that provides the rational for their studies. The study was therefore qualitative in nature as it sought to gather men’s experiences of violent against their spouses; semi-structured interviews were utilized during data collection. A purposive sampling method was utilised to select ten men who were known to have perpetrated violence against their partners and five key informants with special knowledge on domestic violence. The research was conducted through the Department of Social Development in Alice in the Eastern Cape, which facilitated a trusting relationship between the researcher and its clients. The findings established that violence is used to maintain control and power over women. Men invoked hegemonic discourses as violence is employed as an instrument to suppress women, mostly in instances were women question their prerogatives and undermine their authority. It was evidenced that cultural practices such as ‘lobola’ (dowry) usually contribute to men’s use of violence. Most of the respondents understood violence from the physical dimension only, as violence was equated to beating and slapping. Added to that was the respondents’ inadequate understanding of domestic violence laws and legislation. The study also established that social service providers seem not to have concrete procedures and capacity to deal with perpetrators of domestic violence. In light of the problems discussed, the study recommends effective counseling and educational programs, policy improvement, capacitation of service providers and the criminal justice system and further research as strategies for dealing with male violence in the Nkonkobe District.
- Full Text:
- Date Issued: 2008
- Authors: Danga, Talent
- Date: 2008
- Subjects: Abused wives -- South Africa , Abused women -- South Africa , Family violence -- South Africa , Women -- Crimes against -- South Africa , Family violence -- South Africa -- Research , Family violence -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: vital:11753 , http://hdl.handle.net/10353/180 , Abused wives -- South Africa , Abused women -- South Africa , Family violence -- South Africa , Women -- Crimes against -- South Africa , Family violence -- South Africa -- Research , Family violence -- Law and legislation -- South Africa
- Description: The study explores the experiences of men who perpetrated violence against women in the domestic sphere. The study’s overarching concern is that violence has been largely seen as a women’s problem and not an issue that is central to men and yet in most cases are the perpetrators of this violence. Consequently, men have not been targeted in initiatives that curb domestic violence (Salo, 2005). It is in this frame of reference that this study saw it imperative to focus on the male perspective of gender violence. The study aims to find factors that contribute to male violence and in turn recommend practical and appropriate strategies of dealing with male violence perpetrators. The study drew its theoretical framework largely from the feminist theory, systems theory and the social learning theory in-order to gain insight into the different frameworks for making judgement about male violence against women. Feminists hold the view that, starting with people’s experiences is a powerful tool that provides the rational for their studies. The study was therefore qualitative in nature as it sought to gather men’s experiences of violent against their spouses; semi-structured interviews were utilized during data collection. A purposive sampling method was utilised to select ten men who were known to have perpetrated violence against their partners and five key informants with special knowledge on domestic violence. The research was conducted through the Department of Social Development in Alice in the Eastern Cape, which facilitated a trusting relationship between the researcher and its clients. The findings established that violence is used to maintain control and power over women. Men invoked hegemonic discourses as violence is employed as an instrument to suppress women, mostly in instances were women question their prerogatives and undermine their authority. It was evidenced that cultural practices such as ‘lobola’ (dowry) usually contribute to men’s use of violence. Most of the respondents understood violence from the physical dimension only, as violence was equated to beating and slapping. Added to that was the respondents’ inadequate understanding of domestic violence laws and legislation. The study also established that social service providers seem not to have concrete procedures and capacity to deal with perpetrators of domestic violence. In light of the problems discussed, the study recommends effective counseling and educational programs, policy improvement, capacitation of service providers and the criminal justice system and further research as strategies for dealing with male violence in the Nkonkobe District.
- Full Text:
- Date Issued: 2008
Managing of work stress among blue collarworkers in the mining industry in Lesotho
- Authors: Molaoa, Tsalong
- Date: 2008
- Subjects: Working class , Mineral industries -- Lesotho , Job stress , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: vital:11550 , http://hdl.handle.net/10353/187 , Working class , Mineral industries -- Lesotho , Job stress , Stress (Psychology)
- Description: There are various ways in which work can be harmful to our health. Accidents and violence on the job and exposure to noxious chemicals in factories and sealed office buildings account for substantial numbers of injuries and deaths every year. Another danger, stress affects millions of employees and costs companies millions of cash every year, but it operates in more silent and subtle way. Stress is a psychological agent that affects the health of workers, productivity, and morale worldwide. Some of the causes of stress in the workplace include work over and underload, personal and family problems, organizational design and relationships in the organization. Stress-related diseases are widespread among employees throughout the world. A national survey was conducted in the United states by a life insurance company found that nearly half of all employed adults considered their jobs to be extremely stressful. Furthermore, a major share of physical complaints may be psychosomatic, that is, actual physical disorders caused by or related to emotional factors such as stress on the job. Physical problems associated with stress include high blood pressure, ulcers, heart disease, lower back pain and cancer. Stress in the workplace is very costly to employers in terms of lower productivity, reduced motivation, and increased errors and accidents. Moderate stress is encouraged as it can help employees in achieving the goals by being productive but too much or high stress level is related to increases in turnover and counterproductive behavior, such as theft and drug and alcohol abuse.
- Full Text:
- Date Issued: 2008
- Authors: Molaoa, Tsalong
- Date: 2008
- Subjects: Working class , Mineral industries -- Lesotho , Job stress , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: vital:11550 , http://hdl.handle.net/10353/187 , Working class , Mineral industries -- Lesotho , Job stress , Stress (Psychology)
- Description: There are various ways in which work can be harmful to our health. Accidents and violence on the job and exposure to noxious chemicals in factories and sealed office buildings account for substantial numbers of injuries and deaths every year. Another danger, stress affects millions of employees and costs companies millions of cash every year, but it operates in more silent and subtle way. Stress is a psychological agent that affects the health of workers, productivity, and morale worldwide. Some of the causes of stress in the workplace include work over and underload, personal and family problems, organizational design and relationships in the organization. Stress-related diseases are widespread among employees throughout the world. A national survey was conducted in the United states by a life insurance company found that nearly half of all employed adults considered their jobs to be extremely stressful. Furthermore, a major share of physical complaints may be psychosomatic, that is, actual physical disorders caused by or related to emotional factors such as stress on the job. Physical problems associated with stress include high blood pressure, ulcers, heart disease, lower back pain and cancer. Stress in the workplace is very costly to employers in terms of lower productivity, reduced motivation, and increased errors and accidents. Moderate stress is encouraged as it can help employees in achieving the goals by being productive but too much or high stress level is related to increases in turnover and counterproductive behavior, such as theft and drug and alcohol abuse.
- Full Text:
- Date Issued: 2008
Manufacturing as a reference for rethinking construction design management
- Authors: Sidloyi, Xabiso
- Date: 2008
- Subjects: Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9667 , http://hdl.handle.net/10948/766 , Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Description: Design changes due to lack of constructability, cost overruns, delays and dissatisfied clients are but a few problems experienced in construction due to poor management of the design processes. Increased problems, challenges, demands and continuous criticism of the architectural profession has led to increased demand for research into the improvement of design processes. The aims of this research were to determine the adequacy of design management processes used by Eastern Cape (EC) architectural companies and compare these with the design management processes used in manufacturing in order to establish practices, theories, principles, technologies and deliverables that can be transferred from the manufacturing into the construction to improve efficiency of architectural design management. The quantitative research approach was implemented for this research, the questionnaire was designed to acquire primary, factual and attitudinal data from EC architectural companies and secondary data were acquired through a literature review. The results revealed that design management processes, continuous improvement philosophies, lean principles, and Information and Communication Technology (ICT) used by EC architectural companies are not similar to those used in manufacturing. Therefore EC architectural companies could increase their efficiency by adopting some of the design management processes, ICT, continuous improvement philosophies and lean principles originating from the manufacturing industry.
- Full Text:
- Date Issued: 2008
- Authors: Sidloyi, Xabiso
- Date: 2008
- Subjects: Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9667 , http://hdl.handle.net/10948/766 , Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Description: Design changes due to lack of constructability, cost overruns, delays and dissatisfied clients are but a few problems experienced in construction due to poor management of the design processes. Increased problems, challenges, demands and continuous criticism of the architectural profession has led to increased demand for research into the improvement of design processes. The aims of this research were to determine the adequacy of design management processes used by Eastern Cape (EC) architectural companies and compare these with the design management processes used in manufacturing in order to establish practices, theories, principles, technologies and deliverables that can be transferred from the manufacturing into the construction to improve efficiency of architectural design management. The quantitative research approach was implemented for this research, the questionnaire was designed to acquire primary, factual and attitudinal data from EC architectural companies and secondary data were acquired through a literature review. The results revealed that design management processes, continuous improvement philosophies, lean principles, and Information and Communication Technology (ICT) used by EC architectural companies are not similar to those used in manufacturing. Therefore EC architectural companies could increase their efficiency by adopting some of the design management processes, ICT, continuous improvement philosophies and lean principles originating from the manufacturing industry.
- Full Text:
- Date Issued: 2008