The selection paradox: selecting and evaluating trainee psychologists in the context of narrative theory
- Authors: Kaschula, Joanne
- Date: 2002
- Subjects: Psychologists -- Training of -- South Africa , Psychology -- Study and teaching -- South Africa , Psychologists -- Selection and appointment -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3001 , http://hdl.handle.net/10962/d1002510 , Psychologists -- Training of -- South Africa , Psychology -- Study and teaching -- South Africa , Psychologists -- Selection and appointment -- South Africa
- Description: Psychology has become an increasingly popular discipline for study in the South African context, with the number of students enrolling for courses increasing rapidly. The selection and evaluation of trainee psychologists is a complex and contested issue. With so few students reaching Masters level and the changing needs of the South African context, it becomes imperative that only the most suitable candidates are selected for entry into the field of professional psychology. This study focuses on the selection process of trainee psychologists at an institution that incorporates the narrative philosophy in both the selection and training of candidates. The question is raised, whether it is possible to utilize narrative principles in a process that is intended to judge and evaluate candidates? This presents a paradox. The paradox is illuminated in both the intentions behind the narrative questions in the application form and in the candidates' experiences of responding to these. The conclusion reached is that the narrative philosophy makes for an enriching and creative experience of the selection process for candidates but this however, does not ameliorate the negative effects of evaluation and the 'gaze'.
- Full Text:
- Date Issued: 2002
- Authors: Kaschula, Joanne
- Date: 2002
- Subjects: Psychologists -- Training of -- South Africa , Psychology -- Study and teaching -- South Africa , Psychologists -- Selection and appointment -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3001 , http://hdl.handle.net/10962/d1002510 , Psychologists -- Training of -- South Africa , Psychology -- Study and teaching -- South Africa , Psychologists -- Selection and appointment -- South Africa
- Description: Psychology has become an increasingly popular discipline for study in the South African context, with the number of students enrolling for courses increasing rapidly. The selection and evaluation of trainee psychologists is a complex and contested issue. With so few students reaching Masters level and the changing needs of the South African context, it becomes imperative that only the most suitable candidates are selected for entry into the field of professional psychology. This study focuses on the selection process of trainee psychologists at an institution that incorporates the narrative philosophy in both the selection and training of candidates. The question is raised, whether it is possible to utilize narrative principles in a process that is intended to judge and evaluate candidates? This presents a paradox. The paradox is illuminated in both the intentions behind the narrative questions in the application form and in the candidates' experiences of responding to these. The conclusion reached is that the narrative philosophy makes for an enriching and creative experience of the selection process for candidates but this however, does not ameliorate the negative effects of evaluation and the 'gaze'.
- Full Text:
- Date Issued: 2002
The teaching of ecology in schools: a literature review
- Authors: Wiredu, Christopher Agyei
- Date: 2002
- Subjects: Environmental education Teachers -- In-service training -- South Africa Science -- Study and teaching -- South Africa Ecology -- Study and teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1413 , http://hdl.handle.net/10962/d1003134
- Description: Project 1: This is a literature review on the teaching of ecology in South African schools. The importance of ecology education in the school curriculum is well reported. It is also reported that in spite of the apparent importance of the subject, not much ecology is taught or learned in schools. This report examines what ecology is supposed to be about and the challenges that confront its teaching. The approaches to teaching the subject are also discussed. It would seem that if teachers focus on teaching ecological concepts using constructivist teaching/learning strategies, students might be helped to learn ecology meaningfully. Project 2: 'Constructing eco-concepts' is a case study that reports the effects of a module whose design was informed by social constructivist ideas on the understanding of selected ecological concepts by college students. Social constructivism as a philosophy of learning has gained increasing attention in science education in recent times and yet the approach is so alien to so many. Many teachers still teach by the traditional teacher-centred approaches. This research project reports the conceptual change of students after undertaking the module. It also reports the students' perceptions about the teaching/learning strategies employed in the module. It would seem that the social constructivist strategies used in the module assisted the students to improve their frameworks of ecological concepts. Data also tend to reveal that the students enjoyed the approach to learning and had positive views about the social constructivist teaching/learning approach. Project 3: With the advent of the new curriculum framework for South Africa, the outcomes based curriculum, it would seem that teachers could no longer approach teaching by the traditional transmission methods. Colleges of education have been criticised for producing teachers who do not seem to be adequately prepared for their job. Presently, the argument seems to be that teachers would need in-service education on a wide scale and the colleges of education would seem to be important in-service teacher education centres. This research, using case study methodology, investigated the potential of one of the colleges of education to become an in-service teacher education institution based on its physical and human resources.
- Full Text:
- Date Issued: 2002
- Authors: Wiredu, Christopher Agyei
- Date: 2002
- Subjects: Environmental education Teachers -- In-service training -- South Africa Science -- Study and teaching -- South Africa Ecology -- Study and teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1413 , http://hdl.handle.net/10962/d1003134
- Description: Project 1: This is a literature review on the teaching of ecology in South African schools. The importance of ecology education in the school curriculum is well reported. It is also reported that in spite of the apparent importance of the subject, not much ecology is taught or learned in schools. This report examines what ecology is supposed to be about and the challenges that confront its teaching. The approaches to teaching the subject are also discussed. It would seem that if teachers focus on teaching ecological concepts using constructivist teaching/learning strategies, students might be helped to learn ecology meaningfully. Project 2: 'Constructing eco-concepts' is a case study that reports the effects of a module whose design was informed by social constructivist ideas on the understanding of selected ecological concepts by college students. Social constructivism as a philosophy of learning has gained increasing attention in science education in recent times and yet the approach is so alien to so many. Many teachers still teach by the traditional teacher-centred approaches. This research project reports the conceptual change of students after undertaking the module. It also reports the students' perceptions about the teaching/learning strategies employed in the module. It would seem that the social constructivist strategies used in the module assisted the students to improve their frameworks of ecological concepts. Data also tend to reveal that the students enjoyed the approach to learning and had positive views about the social constructivist teaching/learning approach. Project 3: With the advent of the new curriculum framework for South Africa, the outcomes based curriculum, it would seem that teachers could no longer approach teaching by the traditional transmission methods. Colleges of education have been criticised for producing teachers who do not seem to be adequately prepared for their job. Presently, the argument seems to be that teachers would need in-service education on a wide scale and the colleges of education would seem to be important in-service teacher education centres. This research, using case study methodology, investigated the potential of one of the colleges of education to become an in-service teacher education institution based on its physical and human resources.
- Full Text:
- Date Issued: 2002
The variation of conditions of employment
- Authors: Horo, Lindile
- Date: 2002
- Subjects: Labor laws and legislation -- South Africa , Labor disputes -- South Africa , Collective bargaining -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:11043 , http://hdl.handle.net/10948/282 , Labor laws and legislation -- South Africa , Labor disputes -- South Africa , Collective bargaining -- South Africa
- Description: This paper seeks to bring clarity to a number of issues that arise from a process resulting from the unilateral variation of terms and conditions of employment and the conflict management and dispute resolution processes. The variation of employment terms particularly when it is driven by one party to the employment relationship can cause instability, insecurity, confusion and uncertainty to the parties involved. The nature of work is not constant and therefore changes are inevitable. This then has an effect of bringing disorder not only to the employer-employee relationship but also to the labour relations balance. In many instances and depending on whether it is the employer or employee who propagates the changes, the reasons to alter the conditions are different. Employers usually cite operational or economic reasons that are meant for the survival of the business as the need to make the changes. From the employees’ side the changes are necessitated by reasons aimed at a move from protecting the favourable employment conditions already acquired to improving them or attaining more. In the event that the parties to the employment relationship do not agree to the changes proposed and implemented, a dispute usually arises. This results from the failure of a consultation process, negotiations, persuasion or collective bargaining in general. In essence such a dispute arises from absence of consent to the changes. The failure of a bargaining system requires the process to assume a new nature. The dispute resolution systems and the conflict management systems follow as both the appropriate and necessary steps. The bargaining power together with the intervention of the third party is at the centre of this phase. The parties, depending on the nature of the dispute, the conditions that iv are changed and who are affected by the changes, have choices on what dispute resolution mechanisms to employ. The choice made has a huge impact on both the outcome required in the form of recourse, how the dispute will be resolved or how the conflict will be managed. There is legislative intervention with regards to the resolution of the conflictual scenarios that arise from disputes on unilateral variation of terms and conditions of employment. There are also non-statutory measures available to the parties. The choices are vast as to when can the variation take place, the reasons for the changes, the parties involved, the possible dispute resolution mechanisms, what can be varied and whether the unilateral implementation can be viewed as fair.
- Full Text:
- Date Issued: 2002
- Authors: Horo, Lindile
- Date: 2002
- Subjects: Labor laws and legislation -- South Africa , Labor disputes -- South Africa , Collective bargaining -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:11043 , http://hdl.handle.net/10948/282 , Labor laws and legislation -- South Africa , Labor disputes -- South Africa , Collective bargaining -- South Africa
- Description: This paper seeks to bring clarity to a number of issues that arise from a process resulting from the unilateral variation of terms and conditions of employment and the conflict management and dispute resolution processes. The variation of employment terms particularly when it is driven by one party to the employment relationship can cause instability, insecurity, confusion and uncertainty to the parties involved. The nature of work is not constant and therefore changes are inevitable. This then has an effect of bringing disorder not only to the employer-employee relationship but also to the labour relations balance. In many instances and depending on whether it is the employer or employee who propagates the changes, the reasons to alter the conditions are different. Employers usually cite operational or economic reasons that are meant for the survival of the business as the need to make the changes. From the employees’ side the changes are necessitated by reasons aimed at a move from protecting the favourable employment conditions already acquired to improving them or attaining more. In the event that the parties to the employment relationship do not agree to the changes proposed and implemented, a dispute usually arises. This results from the failure of a consultation process, negotiations, persuasion or collective bargaining in general. In essence such a dispute arises from absence of consent to the changes. The failure of a bargaining system requires the process to assume a new nature. The dispute resolution systems and the conflict management systems follow as both the appropriate and necessary steps. The bargaining power together with the intervention of the third party is at the centre of this phase. The parties, depending on the nature of the dispute, the conditions that iv are changed and who are affected by the changes, have choices on what dispute resolution mechanisms to employ. The choice made has a huge impact on both the outcome required in the form of recourse, how the dispute will be resolved or how the conflict will be managed. There is legislative intervention with regards to the resolution of the conflictual scenarios that arise from disputes on unilateral variation of terms and conditions of employment. There are also non-statutory measures available to the parties. The choices are vast as to when can the variation take place, the reasons for the changes, the parties involved, the possible dispute resolution mechanisms, what can be varied and whether the unilateral implementation can be viewed as fair.
- Full Text:
- Date Issued: 2002
Theatre and science, with specific reference to Shelagh Stephenson's An experiment with an air pump (1999)
- Authors: Van Niekerk, Dion
- Date: 2002
- Subjects: Science in literature , Stephenson, Shelagh -- Experiment with an air pump
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2152 , http://hdl.handle.net/10962/d1004270
- Description: Science has featured intermittently as the subject of theatrical texts since Thomas Shadwell first represented the Renaissance scientist in The Virtuoso (1676). The late twentieth century, however, saw an incremental growth in theatre's interest in scientific exploration, a growth concommitant with the vast impact that science has had on technology, warfare and the machinations of political power. The tensions generated by the disjuncture between the rationality of science and the unpredictability of human society have provided a rich source of material for theatrical investigation into the human experience. The purpose of this thesis is twofold: to reveal some of the thematic concerns that emerge in this genre, and to examine the interplay between theatre and science. Shelagh Stephenson's An Experiment with an Air Pump (1999) provides a useful point of focus for this inquiry. By parallelling two time periods, exposing the scientific objectification of women and, in addition, opening up contemporary ethics for negotiation with the audience, Stephenson calls into question the objectivity and certainty of history, gender and ethical conduct. These she presents as dynamic and evolving fields of discourse that contribute to, but do not solely constitute, knowledge and understanding of the world. An Experiment with an Air Pump also displays an awareness, through its metatheatricality, of theatre itself as an imaginative, subjective discourse which parallels the more intuitive and personal aspects of scientific exploration. The play functions as a microscope, bringing into focus a contemporary world in which traditional systems of understanding and knowledge need to be reassessed and reinvented.
- Full Text:
- Date Issued: 2002
- Authors: Van Niekerk, Dion
- Date: 2002
- Subjects: Science in literature , Stephenson, Shelagh -- Experiment with an air pump
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2152 , http://hdl.handle.net/10962/d1004270
- Description: Science has featured intermittently as the subject of theatrical texts since Thomas Shadwell first represented the Renaissance scientist in The Virtuoso (1676). The late twentieth century, however, saw an incremental growth in theatre's interest in scientific exploration, a growth concommitant with the vast impact that science has had on technology, warfare and the machinations of political power. The tensions generated by the disjuncture between the rationality of science and the unpredictability of human society have provided a rich source of material for theatrical investigation into the human experience. The purpose of this thesis is twofold: to reveal some of the thematic concerns that emerge in this genre, and to examine the interplay between theatre and science. Shelagh Stephenson's An Experiment with an Air Pump (1999) provides a useful point of focus for this inquiry. By parallelling two time periods, exposing the scientific objectification of women and, in addition, opening up contemporary ethics for negotiation with the audience, Stephenson calls into question the objectivity and certainty of history, gender and ethical conduct. These she presents as dynamic and evolving fields of discourse that contribute to, but do not solely constitute, knowledge and understanding of the world. An Experiment with an Air Pump also displays an awareness, through its metatheatricality, of theatre itself as an imaginative, subjective discourse which parallels the more intuitive and personal aspects of scientific exploration. The play functions as a microscope, bringing into focus a contemporary world in which traditional systems of understanding and knowledge need to be reassessed and reinvented.
- Full Text:
- Date Issued: 2002
Thermal and photostability studies of furosemide and its cyclodextrin mixtures
- Authors: Melane, Babalwa Blossom
- Date: 2002 , 2013-05-16
- Subjects: Furosemide , Furosemide -- Stability
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4440 , http://hdl.handle.net/10962/d1007625 , Furosemide , Furosemide -- Stability
- Description: Furosemide (Lasix®), abbreviated as FR and also known as frusemide, is a drug used for renal problems and treatment of cardiac edema. Various polymorphic forms of furosemide, dependent upon the method of preparation and thermal treatment, have been reported. The main thermal decomposition product of furosemide has been identified as saluamine. The dissolution properties of furosemide have also been reported to be improved by complexation with beta-cyclodextrin. Photostabilities of the different crystal forms have been studied. Differential scanning calorimetry (DSC) and thermogravimetry (TG) have been used to examine the thermal behaviour of furosemide itself and of its physical and kneaded mixtures with betacyclodextrin (BCD) and gamma-cyclodextrin (GCD). There is strong evidence from DSC that complex formation between FR and GCD occurs. This is supported by IR and XRD data. Decreases in the intensity and broadening of the characteristic carbonyl (1660 cm'l) and amine (1588 cm⁻¹) bands in the kneaded mixture, compared to the physical mixture, were observed with IR. X-ray diffraction results for the 1:3 molar ratio FR/GCD kneaded mixture showed a halo diffraction pattern characteristic. of an amorphous solid and did not resemble patterns from the drug, or the gamma, cyclodextrin, or the physical mixture. Photostability studies have been conducted on solid furosemide and its mixtures with GCD or BCD. An HPLC method was developed to determine the amount of drug remaining after exposure and the presence of any degradants. Results indicated that about 10% degradation of the drug occurred during exposure for 16 hours at 550 W/m², with the appearance of polar degradants. Although IR and DSC results for the 1:3 molar ratio FR/GCD kneaded mixture showed a probable strong interaction between FR and GCD, the photostability of FR was decreased. The 1 :3 molar ratio FR/BCD kneaded mixture showed less photo-degradation than the 1:3 molar ratio FR/GCD mixture under similar conditions, suggesting that inclusion of the drug molecule (FR) is different in the two cyclodextrins.
- Full Text:
- Date Issued: 2002
- Authors: Melane, Babalwa Blossom
- Date: 2002 , 2013-05-16
- Subjects: Furosemide , Furosemide -- Stability
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4440 , http://hdl.handle.net/10962/d1007625 , Furosemide , Furosemide -- Stability
- Description: Furosemide (Lasix®), abbreviated as FR and also known as frusemide, is a drug used for renal problems and treatment of cardiac edema. Various polymorphic forms of furosemide, dependent upon the method of preparation and thermal treatment, have been reported. The main thermal decomposition product of furosemide has been identified as saluamine. The dissolution properties of furosemide have also been reported to be improved by complexation with beta-cyclodextrin. Photostabilities of the different crystal forms have been studied. Differential scanning calorimetry (DSC) and thermogravimetry (TG) have been used to examine the thermal behaviour of furosemide itself and of its physical and kneaded mixtures with betacyclodextrin (BCD) and gamma-cyclodextrin (GCD). There is strong evidence from DSC that complex formation between FR and GCD occurs. This is supported by IR and XRD data. Decreases in the intensity and broadening of the characteristic carbonyl (1660 cm'l) and amine (1588 cm⁻¹) bands in the kneaded mixture, compared to the physical mixture, were observed with IR. X-ray diffraction results for the 1:3 molar ratio FR/GCD kneaded mixture showed a halo diffraction pattern characteristic. of an amorphous solid and did not resemble patterns from the drug, or the gamma, cyclodextrin, or the physical mixture. Photostability studies have been conducted on solid furosemide and its mixtures with GCD or BCD. An HPLC method was developed to determine the amount of drug remaining after exposure and the presence of any degradants. Results indicated that about 10% degradation of the drug occurred during exposure for 16 hours at 550 W/m², with the appearance of polar degradants. Although IR and DSC results for the 1:3 molar ratio FR/GCD kneaded mixture showed a probable strong interaction between FR and GCD, the photostability of FR was decreased. The 1 :3 molar ratio FR/BCD kneaded mixture showed less photo-degradation than the 1:3 molar ratio FR/GCD mixture under similar conditions, suggesting that inclusion of the drug molecule (FR) is different in the two cyclodextrins.
- Full Text:
- Date Issued: 2002
Thermophilic lignin degrading enzymes from actinomycetes for biotechnological applications
- Authors: Mhlanga, Chido Yvonne Lois
- Date: 2002 , 2013-05-16
- Subjects: Actinomycetales -- Biotechnology , Lignin
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4085 , http://hdl.handle.net/10962/d1007628 , Actinomycetales -- Biotechnology , Lignin
- Description: Phenolic residues which accumulate in the environment as a result of agro-industrial practices has resulted in the need to find and use Eco-Friendly techniques, rather than the traditional methods of burning or burying this kind of waste. Bioremediation and bioconversion are attractive alternatives using whole cell or enzyme-based systems. The aims of this project were to isolate and uses thermophilic Actinomycetes, which produce thermo-tolerant oxidoreductase enzymes, which can be used to bioconvert a model industrial phenolic waste commonly genersated in the wine-making industry of South Africa. Current research in bioconversion and bioremediation focuses on mesophilic microbes in that their enzymes can catalyse reactions at higher temperatures without affecting its activity and lower contamination levels. Three novel Actinomycete isolates were isolated (RU-A0l , RU-A03 and RU-A06) from a compost site and characterized using a combination of conventional identification techniques and 16S rDNA methodology to identity the three isolates. All three isolates belong to the Streptomyces clade. In addition, five known Actinomycetes were selected from an internation culture collection and also screened for oxidoreductase activity in comparision to the three novel isolates. Although the five isolates were selected based on their ability to produce oxidoreductase enzymes, unexpectedly, no activity was detected. Screening assays for peroxidase, polyphenol oxidase and laccase on RU-AO 1, RU-A03 and RU-A06, showed that all three isolated produced peroxidases and peroxidases but no laccase. Substrate specificity studies revealed that the most suitable substrates to determine peroxidase and polyphenol oxidase activity on these isolates were catechol for polyphenol oxidase, 2,4-dichlorophenol for peroxidases and veratryl alcohol for lignin peroxidases. Previous studies have indicated that peroxidases and polyphenol oxidases are produced in Actinomycetes during the primary stage of growth. This was the case with RU-AOI , RU-A03 and RU-A06. Growth rates were higher that other Actinomycetes, with maxImum biomass being reached at 36 hours for the isolates RU-AOI and RU-A06 and 48 hours for isolate RUA03. pH studies showed that the three isolates were adaptable and could grow over a broad pH range. Catabolism studies of phenolic model compounds showed that the three isolates were capable of catabolizing the model phenolic compounds within a period of 24 hours. Further studies were carried out to determine the effect of these microbes and their enzymes in whole cell and enzyme-based systems on a model phenolic waste, graoe waste consisting of compressed grape skins, pips and stalks. Whole cell studies showed that the isolates were capable of bioconverting the waste at a maximum concentration of 30% grape waste (vol:vol). Peroxidase and polyphenol oxidase activity increased indicating induction of these enzymes in the presence of phenolic compounds, with a maximum increase of up to 15.9 fold increase in extracellular lignin peroxidase activity in RU-AO1. HPLC and phenolic determination assays indicated that bioconversion of the phenolic grape waste had occurred in the presence of the three isolates. Attempts were made to isolate and identify a peroxidase or phenol oxidase gene from one the isolates. As bacteria, Actinomycetes are amendable to gene manipulation making them suitable candidates for methods such as site directed evolution in comparison to fungi. Two clones were selected for sequencing based on positive activity results when assayed for peroxidase activity. However the resultant sequences did not identify a functional gene sequence. Southern Blotting was then carried out to determine the nature of the peroxidase gene. Previous studies have been focused on the catalase-peroxidase gene (CalC gene) found Actinomycetes and other bacteria. A probe was developed from the CalC gene. No hybridization occurred with any of the enzyme restricted DNA from the three isolates. The implications of these results are that the peroxidase genets in the three isolates are in fact lignin peroxidase in nature. This project has the potential in the bioconversion of phenolic wastes and is the first description of the use of thermophilic Actinomycetes in the bioconversion of an industrial phenolic waste.
- Full Text:
- Date Issued: 2002
- Authors: Mhlanga, Chido Yvonne Lois
- Date: 2002 , 2013-05-16
- Subjects: Actinomycetales -- Biotechnology , Lignin
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4085 , http://hdl.handle.net/10962/d1007628 , Actinomycetales -- Biotechnology , Lignin
- Description: Phenolic residues which accumulate in the environment as a result of agro-industrial practices has resulted in the need to find and use Eco-Friendly techniques, rather than the traditional methods of burning or burying this kind of waste. Bioremediation and bioconversion are attractive alternatives using whole cell or enzyme-based systems. The aims of this project were to isolate and uses thermophilic Actinomycetes, which produce thermo-tolerant oxidoreductase enzymes, which can be used to bioconvert a model industrial phenolic waste commonly genersated in the wine-making industry of South Africa. Current research in bioconversion and bioremediation focuses on mesophilic microbes in that their enzymes can catalyse reactions at higher temperatures without affecting its activity and lower contamination levels. Three novel Actinomycete isolates were isolated (RU-A0l , RU-A03 and RU-A06) from a compost site and characterized using a combination of conventional identification techniques and 16S rDNA methodology to identity the three isolates. All three isolates belong to the Streptomyces clade. In addition, five known Actinomycetes were selected from an internation culture collection and also screened for oxidoreductase activity in comparision to the three novel isolates. Although the five isolates were selected based on their ability to produce oxidoreductase enzymes, unexpectedly, no activity was detected. Screening assays for peroxidase, polyphenol oxidase and laccase on RU-AO 1, RU-A03 and RU-A06, showed that all three isolated produced peroxidases and peroxidases but no laccase. Substrate specificity studies revealed that the most suitable substrates to determine peroxidase and polyphenol oxidase activity on these isolates were catechol for polyphenol oxidase, 2,4-dichlorophenol for peroxidases and veratryl alcohol for lignin peroxidases. Previous studies have indicated that peroxidases and polyphenol oxidases are produced in Actinomycetes during the primary stage of growth. This was the case with RU-AOI , RU-A03 and RU-A06. Growth rates were higher that other Actinomycetes, with maxImum biomass being reached at 36 hours for the isolates RU-AOI and RU-A06 and 48 hours for isolate RUA03. pH studies showed that the three isolates were adaptable and could grow over a broad pH range. Catabolism studies of phenolic model compounds showed that the three isolates were capable of catabolizing the model phenolic compounds within a period of 24 hours. Further studies were carried out to determine the effect of these microbes and their enzymes in whole cell and enzyme-based systems on a model phenolic waste, graoe waste consisting of compressed grape skins, pips and stalks. Whole cell studies showed that the isolates were capable of bioconverting the waste at a maximum concentration of 30% grape waste (vol:vol). Peroxidase and polyphenol oxidase activity increased indicating induction of these enzymes in the presence of phenolic compounds, with a maximum increase of up to 15.9 fold increase in extracellular lignin peroxidase activity in RU-AO1. HPLC and phenolic determination assays indicated that bioconversion of the phenolic grape waste had occurred in the presence of the three isolates. Attempts were made to isolate and identify a peroxidase or phenol oxidase gene from one the isolates. As bacteria, Actinomycetes are amendable to gene manipulation making them suitable candidates for methods such as site directed evolution in comparison to fungi. Two clones were selected for sequencing based on positive activity results when assayed for peroxidase activity. However the resultant sequences did not identify a functional gene sequence. Southern Blotting was then carried out to determine the nature of the peroxidase gene. Previous studies have been focused on the catalase-peroxidase gene (CalC gene) found Actinomycetes and other bacteria. A probe was developed from the CalC gene. No hybridization occurred with any of the enzyme restricted DNA from the three isolates. The implications of these results are that the peroxidase genets in the three isolates are in fact lignin peroxidase in nature. This project has the potential in the bioconversion of phenolic wastes and is the first description of the use of thermophilic Actinomycetes in the bioconversion of an industrial phenolic waste.
- Full Text:
- Date Issued: 2002
Towards a broader socio-ecological education : a case study of school based curricular reform
- Authors: Cimma, Gary Martin
- Date: 2002
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:20973 , http://hdl.handle.net/10962/5763
- Description: This work documents and analyses an action research project that the researcher undertook in conjunction with colleagues at an independent Catholic high school in Johannesburg. The main objective was to try to expand the existing curriculum in operation at the time of starting the research to one, which was more socio-ecologically sensitive. One of the key references during the action research was the recently drafted ‘Vision Statement’ document, which detailed the educational ideals of the school. Some of the key findings that emerged as the research proceeded, were that the levels of socio-ecological sensitivity displayed by the learners were influenced by the backgrounds from which they came, and that these background environments were often not comfortable with the changes taking place in the educational and greater South African environments. The Participatory Action Research mode of research which was used proved to be problematic in that only a handful of the educators actually got involved in participating in the project. The failure of many of educators to get involved was, in the opinion of the researcher, due to their lack of understanding how important the development of social and ecological sensitivity are to the necessary change capacity required in present day South African society. The need to be involved in the ongoing development of curriculum as required by Curriculum 2005 as a form of Outcomes Based Education was also problematic as some educators were not familiar with their role in this regard. The limited time-span of the research was also a limiting factor as the development of a socio-ecologically sensitive curriculum required changes in some fundamental attitudes and approaches to education and the environment.
- Full Text:
- Date Issued: 2002
- Authors: Cimma, Gary Martin
- Date: 2002
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:20973 , http://hdl.handle.net/10962/5763
- Description: This work documents and analyses an action research project that the researcher undertook in conjunction with colleagues at an independent Catholic high school in Johannesburg. The main objective was to try to expand the existing curriculum in operation at the time of starting the research to one, which was more socio-ecologically sensitive. One of the key references during the action research was the recently drafted ‘Vision Statement’ document, which detailed the educational ideals of the school. Some of the key findings that emerged as the research proceeded, were that the levels of socio-ecological sensitivity displayed by the learners were influenced by the backgrounds from which they came, and that these background environments were often not comfortable with the changes taking place in the educational and greater South African environments. The Participatory Action Research mode of research which was used proved to be problematic in that only a handful of the educators actually got involved in participating in the project. The failure of many of educators to get involved was, in the opinion of the researcher, due to their lack of understanding how important the development of social and ecological sensitivity are to the necessary change capacity required in present day South African society. The need to be involved in the ongoing development of curriculum as required by Curriculum 2005 as a form of Outcomes Based Education was also problematic as some educators were not familiar with their role in this regard. The limited time-span of the research was also a limiting factor as the development of a socio-ecologically sensitive curriculum required changes in some fundamental attitudes and approaches to education and the environment.
- Full Text:
- Date Issued: 2002
Towards the performer-creator in contemporary mime, with specific reference to the physical theatre of Andrew Buckland, 1988-2000
- Authors: Murray, Robert Ian
- Date: 2002
- Subjects: Buckland, Andrew , Mime , Mimes -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2158 , http://hdl.handle.net/10962/d1007720
- Description: Part one of this thesis investigates the conceptualisation of the performer-creator and its relevance in late twentieth century physical performance by examining some of the theoretical, but mainly artistic, traditions that suggest a movement towards this. Chapter one tackles the question of definition, linking mime within a wider physical theatre phenomenon. Chapter two looks at the importance of mime training for contemporary performance. This requires a focus on selected theatre practitioners who have significantly advanced the development of mime training and performance during the twentieth century. Chapter three examines the issue of silence in mime and questions a potential liberation of the word and language in contemporary performance and consequently how this affects the role of the performer, particularly in South Africa. Chapter four investigates the figure of the theatrical clown and how this late twentieth century development is playing an increasingly important role in contemporary performance. Chapter five then wraps up part one by pulling the preceding chapters together and thereby providing a working conceptualisation of the performer-creator, locating it within an overall appreciation of contemporary mime. Part two then tests the notion of the performer-creator by focussing on a case study through the investigation of Andrew Buckland to develop this idea. Andrew Buckland, and his work under the ethos of Mouthpeace from 1988-2000, provides a clear and unique example of this movement in contemporary South African performance. Trained as an actor and in classical illusion-based mime technique, as well as many dance forms such as ballet, contemporary and jazz, he has virtually single-handedly created and shaped a particular performance trend that is in line with contemporary international trends but retains a distinctive South African flavour. There is no space to attempt a definitive or exhaustive examination of his works, and nor is the intent to do so; rather, the aim is to draw from his work their essences that reveal his development as an artist: as both a creator and a performer.
- Full Text:
- Date Issued: 2002
- Authors: Murray, Robert Ian
- Date: 2002
- Subjects: Buckland, Andrew , Mime , Mimes -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2158 , http://hdl.handle.net/10962/d1007720
- Description: Part one of this thesis investigates the conceptualisation of the performer-creator and its relevance in late twentieth century physical performance by examining some of the theoretical, but mainly artistic, traditions that suggest a movement towards this. Chapter one tackles the question of definition, linking mime within a wider physical theatre phenomenon. Chapter two looks at the importance of mime training for contemporary performance. This requires a focus on selected theatre practitioners who have significantly advanced the development of mime training and performance during the twentieth century. Chapter three examines the issue of silence in mime and questions a potential liberation of the word and language in contemporary performance and consequently how this affects the role of the performer, particularly in South Africa. Chapter four investigates the figure of the theatrical clown and how this late twentieth century development is playing an increasingly important role in contemporary performance. Chapter five then wraps up part one by pulling the preceding chapters together and thereby providing a working conceptualisation of the performer-creator, locating it within an overall appreciation of contemporary mime. Part two then tests the notion of the performer-creator by focussing on a case study through the investigation of Andrew Buckland to develop this idea. Andrew Buckland, and his work under the ethos of Mouthpeace from 1988-2000, provides a clear and unique example of this movement in contemporary South African performance. Trained as an actor and in classical illusion-based mime technique, as well as many dance forms such as ballet, contemporary and jazz, he has virtually single-handedly created and shaped a particular performance trend that is in line with contemporary international trends but retains a distinctive South African flavour. There is no space to attempt a definitive or exhaustive examination of his works, and nor is the intent to do so; rather, the aim is to draw from his work their essences that reveal his development as an artist: as both a creator and a performer.
- Full Text:
- Date Issued: 2002
Traditional leaders in post-1996 South Africa, with particular reference to the Eastern Cape
- De Sas Kropiwnicki, Zosa Olenka
- Authors: De Sas Kropiwnicki, Zosa Olenka
- Date: 2002
- Subjects: Tribal government -- South Africa -- Eastern Cape , Political leadership -- South Africa -- Eastern Cape , South Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2857 , http://hdl.handle.net/10962/d1007479 , Tribal government -- South Africa -- Eastern Cape , Political leadership -- South Africa -- Eastern Cape , South Africa -- Politics and government
- Description: The failure of democracy in Africa can be partially attributed to the Eurocentric assumptions that belie Western recommendations for Africa. This thesis focuses on the failure of the modernisation school to account for the resiliency of tradition in the modern African state, which is described by Sklar (1991) as amounting to a form of 'mixed government', combining the traditional with the modern to create a uniquely African form of governance. This notion of a 'mixed government' is addressed from the vantage point of traditional leaders in the Eastern Cape. It maps the vacillating relationship between the chiefs, the people and the government through colonialism, Apartheid and democratisation. It concludes that although the Eastern Cape provincial government has subordinated the chiefs, this does not signify a victory for modernity over tradition because the chiefs are not a spent force. History has shown that when the government fails to act in the interests of the people, they seek an alternative authority namely, the chiefs. The ANC government's centralising tendencies have negative implications for democracy and consequently for the people. This opens up space for the chiefs to assert themselves provided they play an active role in furthering democracy, development and modernisation in the interests of the people. Hence, although ' mixed' government in the post-1996 South Africa is currently on the ANC's terms, traditional leaders may someday play a vital role in the modern democratic state.
- Full Text:
- Date Issued: 2002
- Authors: De Sas Kropiwnicki, Zosa Olenka
- Date: 2002
- Subjects: Tribal government -- South Africa -- Eastern Cape , Political leadership -- South Africa -- Eastern Cape , South Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2857 , http://hdl.handle.net/10962/d1007479 , Tribal government -- South Africa -- Eastern Cape , Political leadership -- South Africa -- Eastern Cape , South Africa -- Politics and government
- Description: The failure of democracy in Africa can be partially attributed to the Eurocentric assumptions that belie Western recommendations for Africa. This thesis focuses on the failure of the modernisation school to account for the resiliency of tradition in the modern African state, which is described by Sklar (1991) as amounting to a form of 'mixed government', combining the traditional with the modern to create a uniquely African form of governance. This notion of a 'mixed government' is addressed from the vantage point of traditional leaders in the Eastern Cape. It maps the vacillating relationship between the chiefs, the people and the government through colonialism, Apartheid and democratisation. It concludes that although the Eastern Cape provincial government has subordinated the chiefs, this does not signify a victory for modernity over tradition because the chiefs are not a spent force. History has shown that when the government fails to act in the interests of the people, they seek an alternative authority namely, the chiefs. The ANC government's centralising tendencies have negative implications for democracy and consequently for the people. This opens up space for the chiefs to assert themselves provided they play an active role in furthering democracy, development and modernisation in the interests of the people. Hence, although ' mixed' government in the post-1996 South Africa is currently on the ANC's terms, traditional leaders may someday play a vital role in the modern democratic state.
- Full Text:
- Date Issued: 2002
Valuation of intellectual capital in South African companies: a comparative study of three valuation methods
- Authors: Maree, Kevin W
- Date: 2002
- Subjects: Accounting
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:877 , http://hdl.handle.net/10962/d1001631
- Description: This study discusses three valuation methods for intellectual capital and considers two of these (Tobin’s “q” and CIV) as suitable valuation methods.
- Full Text:
- Date Issued: 2002
- Authors: Maree, Kevin W
- Date: 2002
- Subjects: Accounting
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:877 , http://hdl.handle.net/10962/d1001631
- Description: This study discusses three valuation methods for intellectual capital and considers two of these (Tobin’s “q” and CIV) as suitable valuation methods.
- Full Text:
- Date Issued: 2002
Voluntary associations as schools for democracy? : a case study of the Sibanye Development Project
- Authors: Siwahla, Lindiwe Lillian
- Date: 2002
- Subjects: Sibanye Development Project , Non-governmental organizations , Political participation , Non-governmental organizations--South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2842 , http://hdl.handle.net/10962/d1004778 , Sibanye Development Project , Non-governmental organizations , Political participation , Non-governmental organizations--South Africa
- Description: This is an empirical study of a voluntary association with a view to interrogate the theories of civil society and participation and their practice. These theories came to dominate debate on African politics and democratisation following disappointment with structural approaches to development and democracy. Disenchantment with the state whose role was emphasised by the structural approach led analysts and technocrats to turn their attention to human agency; hence the salience of the idea of popular participation in the public domain, and preoccupation with the idea of strengthening civil society. This trend gained momentum after the 1989 fall of the Berlin Wall and demise of the communist block, and was accompanied by anti-statist sentiments on a global scale. Civil society organisations are seen as schools for democracy and agents of democratic consolidation, and are accordingly expected to perform two major tasks, namely instilling and disseminating a democratic political culture in and among participants and society at large, and promoting good governance. The aim therefore is to take advantage of the supposed intrinsic and utilitarian benefits of participation. As evident in a number of policy documents and legislation, the incumbent South African government embraces the idea of participatory democracy. However, not all analysts share this confidence in the capacity of civil society to perform these tasks. For some analysts public participation does not always have positive intrinsic benefits. Public participation may instead lead to a corrupted political culture deriving from the participants' attempts to survive in a public sphere characterised by manipulation and subtle political control, and it is civil society organisations lacking in organisational strength that are particularly vulnerable. The study revealed that unity between practice and theories of participation and civil society is a complex matter fraught with a number of ambiguities and contradictions. It revealed that though participation in the voluntary association in question does have educative benefits, those benefits do not extend to all the participants. In addition, the quality of that education is contingent upon a number of factors, some internal, others external. The internal and external factors reinforce one another. The internal factors pertain to the organisational dynamics of the voluntary association itself, and the external factors to the nature of the relationship between the voluntary association concerned and public authorities and other civil society organisations. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2002
- Authors: Siwahla, Lindiwe Lillian
- Date: 2002
- Subjects: Sibanye Development Project , Non-governmental organizations , Political participation , Non-governmental organizations--South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2842 , http://hdl.handle.net/10962/d1004778 , Sibanye Development Project , Non-governmental organizations , Political participation , Non-governmental organizations--South Africa
- Description: This is an empirical study of a voluntary association with a view to interrogate the theories of civil society and participation and their practice. These theories came to dominate debate on African politics and democratisation following disappointment with structural approaches to development and democracy. Disenchantment with the state whose role was emphasised by the structural approach led analysts and technocrats to turn their attention to human agency; hence the salience of the idea of popular participation in the public domain, and preoccupation with the idea of strengthening civil society. This trend gained momentum after the 1989 fall of the Berlin Wall and demise of the communist block, and was accompanied by anti-statist sentiments on a global scale. Civil society organisations are seen as schools for democracy and agents of democratic consolidation, and are accordingly expected to perform two major tasks, namely instilling and disseminating a democratic political culture in and among participants and society at large, and promoting good governance. The aim therefore is to take advantage of the supposed intrinsic and utilitarian benefits of participation. As evident in a number of policy documents and legislation, the incumbent South African government embraces the idea of participatory democracy. However, not all analysts share this confidence in the capacity of civil society to perform these tasks. For some analysts public participation does not always have positive intrinsic benefits. Public participation may instead lead to a corrupted political culture deriving from the participants' attempts to survive in a public sphere characterised by manipulation and subtle political control, and it is civil society organisations lacking in organisational strength that are particularly vulnerable. The study revealed that unity between practice and theories of participation and civil society is a complex matter fraught with a number of ambiguities and contradictions. It revealed that though participation in the voluntary association in question does have educative benefits, those benefits do not extend to all the participants. In addition, the quality of that education is contingent upon a number of factors, some internal, others external. The internal and external factors reinforce one another. The internal factors pertain to the organisational dynamics of the voluntary association itself, and the external factors to the nature of the relationship between the voluntary association concerned and public authorities and other civil society organisations. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2002
Women in paid domestic work and their children : an exploratory study
- Authors: Maqungu, Nomzamo Florence
- Date: 2002 , 2013-05-16
- Subjects: Household employees -- South Africa , Women, Black -- Employment -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:711 , http://hdl.handle.net/10962/d1007476 , Household employees -- South Africa , Women, Black -- Employment -- South Africa
- Description: This study explores the views and experiences of domestic workers with regard to service conditions of their occupation, the arrangements they make for the care of their own children and the frequency of contact they make with their children. Data was obtained through use of pre - coded self administered questionnaires which were employed to 50 domestic women who are working in East London and its suburbs and have children under the age of 16 years. Semi-structured interviews were tape recorded and transcribed and the analysis process looked at general trends where qualitative data was obtained. Quantitative data was tabulated in frequency tables and interpreted by means of graphs. The study is pioneering efforts in the Eastern Cape and South Africa in general as well as setting a way forward for further exploration of this subject. It is hoped that the study will make a worthwhile contribution and bring upfront valuable information that could be used when addressing issues of domestic workers. The study also indirectly challenges those professions and disciplines who have been advocating on behalf of domestic workers to mobilize these workers towards taking part in the uplifting of their standards and to fInish up the good work they had already started until their aims have been achieved. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2002
- Authors: Maqungu, Nomzamo Florence
- Date: 2002 , 2013-05-16
- Subjects: Household employees -- South Africa , Women, Black -- Employment -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:711 , http://hdl.handle.net/10962/d1007476 , Household employees -- South Africa , Women, Black -- Employment -- South Africa
- Description: This study explores the views and experiences of domestic workers with regard to service conditions of their occupation, the arrangements they make for the care of their own children and the frequency of contact they make with their children. Data was obtained through use of pre - coded self administered questionnaires which were employed to 50 domestic women who are working in East London and its suburbs and have children under the age of 16 years. Semi-structured interviews were tape recorded and transcribed and the analysis process looked at general trends where qualitative data was obtained. Quantitative data was tabulated in frequency tables and interpreted by means of graphs. The study is pioneering efforts in the Eastern Cape and South Africa in general as well as setting a way forward for further exploration of this subject. It is hoped that the study will make a worthwhile contribution and bring upfront valuable information that could be used when addressing issues of domestic workers. The study also indirectly challenges those professions and disciplines who have been advocating on behalf of domestic workers to mobilize these workers towards taking part in the uplifting of their standards and to fInish up the good work they had already started until their aims have been achieved. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2002
Workshop theatre in post-apartheid South Africa : a case study
- Authors: Copteros, Athina
- Date: 2002
- Subjects: Theater -- South Africa , Theater -- Political aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2156 , http://hdl.handle.net/10962/d1007477
- Description: This is a qualitative study exploring the use of workshop theatre in post-apartheid South Africa, with the objective of making a contribution to the knowledge-base regarding its use in current times. Workshop theatre is changing in response to a new socio-political reality and emerging trends in theatre practice. The case study, of developing a play on Oystercatchers with a Grahamstown group of artists, revealed the difficulties and challenges of using workshop theatre in this dynamic context. Data collection included a focus group, observation, reflective discussion and in-depth interviews that were analysed in relation to available literature on workshop theatre in apartheid and post-apartheid South Africa. It is proposed that workshop theatre has continued relevance in post -apartheid South Africa. The process of creating workshop theatre with diverse artists has great potential to transform relationships, address issues of personal identity and to provide an underlying purpose to a workshop theatre -making context.
- Full Text:
- Date Issued: 2002
- Authors: Copteros, Athina
- Date: 2002
- Subjects: Theater -- South Africa , Theater -- Political aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2156 , http://hdl.handle.net/10962/d1007477
- Description: This is a qualitative study exploring the use of workshop theatre in post-apartheid South Africa, with the objective of making a contribution to the knowledge-base regarding its use in current times. Workshop theatre is changing in response to a new socio-political reality and emerging trends in theatre practice. The case study, of developing a play on Oystercatchers with a Grahamstown group of artists, revealed the difficulties and challenges of using workshop theatre in this dynamic context. Data collection included a focus group, observation, reflective discussion and in-depth interviews that were analysed in relation to available literature on workshop theatre in apartheid and post-apartheid South Africa. It is proposed that workshop theatre has continued relevance in post -apartheid South Africa. The process of creating workshop theatre with diverse artists has great potential to transform relationships, address issues of personal identity and to provide an underlying purpose to a workshop theatre -making context.
- Full Text:
- Date Issued: 2002