An assessment of the capability of the Eastern Cape Tourism Board to cope with change
- Authors: Mona, Nomkhita Princess
- Date: 2004
- Subjects: Eastern Cape Tourism Board Tourism -- South Africa -- Eastern Cape Organizational change -- South Africa -- Eastern Cape -- Case studies
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:812 , http://hdl.handle.net/10962/d1007683
- Description: This study set out to examine whether the Eastern Cape Tourism Board (ECTB) had the capability to cope with change. The tourism industry is very dynamic and for the organization to survive, it must be able to adapt itself in a constantly changing environment. The research question was derived from a study done by Human and Horwitz (1992), in which they examined how South African companies cope with change. They developed a model and a questionnaire to measure the capabilities of coping with change. Their model and questionnaire were based on the following four dimensions: strategic orientation, control orientation, social focus and institutional focus. This model classified organizations into four types, namely: the Boardroom organization, the Technocracy organization, the Hardhat organization as well as the Missionary organization. These typologies are discussed in Chapter 2. A modified version of the Human and Horwitz questionnaire was used to conduct this research. The original questionnaire has 32 items, and the questionnaire used in this study has the same number of items. The modification was done to nine questions, to ensure that they were of specific relevance to the organization being researched. The questions were slightly modified taking care to ensure that they still fit within the original dimensions measured by Human and Horwitz (1992). The questionnaires were distributed within the organization, particularly to those employees in the Tourism section, as the organization also had a Conservation section. The Conservation section was excluded due to the fact that a policy decision had already been taken to separate the two sections, thereby creating two organizations. When the questionnaires were returned, they were analyzed using 'Statistica' , a computerized statistics program. The results showed that the ECTB does not have the capability to cope with change as it lacked the critical strategic orientation that Human and Horwitz (1992) suggest is a key requirement for coping. The profile of the organization showed that the ECTB could be classified as primarily being a Technocracy organization, and secondarily a 'Hardhat' organization. (See details in Chapter 4). Human and Horwitz (1992) suggest that an organization to be able to cope with change, must be a 'hybrid' of these four types. The implications of these results suggest that the organization is lacking in the dynamism brought about by having a strategic orientation. Human and Horwitz argue that the profile of an organization coping well with change should show a 'balance' in terms of orientation (strategic orientation and control orientation). The ECTB's profile does not show this balance, and can therefore be said not to have the capability to cope with change. The results of the profile are discussed in Chapter 4.
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An assessment of the knowledge processing environment in an organisation : a case study
- Authors: Vlok, Daniël
- Date: 2004
- Subjects: Rhodes University (East London) -- Information Technology Department Knowledge management Organizational behavior Organizational learning Information storage and retrieval systems
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:721 , http://hdl.handle.net/10962/d1003806
- Description: Knowledge Management is associated with organisational initiatives in response to the demands of a knowledge-based economy in which the potential value of knowledge as a source for competitive advantage is recognised. However, the lack of a common understanding about knowledge itself, its characteristics and how it is constructed has led to diverse approaches about how to "manage" it. This study presents a critical overview of traditional and contemporary KM approaches. The main focus of this study was to discover and apply a suitable methodology for assessing an organisation's knowledge processing environment. This includes an analysis of the current practices and behaviours of people within the organisation relating to the creation of new knowledge and integrating such knowledge into day-to-day work. It also includes inferring from the above practices those policies and programmes that affect knowledge outcomes. This research makes extensive use of the Knowledge Life Cycle (KLC) framework and the Policy Synchronisation Method (PSM) developed by advocates of the New Knowledge Management movement. A case study approach was followed using a range of data collection methods, which included personal interviews, a social network survey and focus group discussions. The selected case is the small IT department at the East London campus of Rhodes University. Evidence from the case suggests that the knowledge processing environment within the IT department is unhealthy. The current knowledge processing practices and behaviours are undesirable and not geared towards the creation of new knowledge and the integration of such knowledge within the business processes of the IT department. There is little evidence of individual and organisational learning occurring and the problem solving process itself is severely hampered by dysfunctional knowledge practices. The study concludes that the above state of affairs is a reflection of the quality and appropriateness of policies and programmes in the extended organisation. Equally, the local definition of rules, procedures and the execution thereof at a business unit level is mostly lacking. The study illustrates that a systematic assessment of the knowledge processing environment provides the organisation with a sound baseline from where knowledge-based interventions can be launched.
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An empirical investigation of the extension of servqual to measure internal service quality in a motor vehicle manufacturing setting
- Authors: Booi, Arthur Mzwandile
- Date: 2004
- Subjects: Automobile industry and trade -- Quality control -- South Africa -- Eastern Cape Automobile industry and trade -- Customer services -- South Africa -- Eastern Cape Automobile industry and trade -- Quality control -- Statistical methods Customer services -- Quality control Automobile industry and trade -- Quality assurance -- South Africa -- Eastern Cape Consumer satisfaction Industrial productivity -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:801 , http://hdl.handle.net/10962/d1006139
- Description: This research explores the role, which the construct, service quality plays in an internal marketing setting. This is achieved by evaluating the perceptions and expectations of the production department with regards to the service quality provided by the maintenance department of a South African motor vehicle manufacturer. This was done using the INTSERVQUAL instrument, which was found to be a reliable instrument for measuring internal service quality within this context. A positivist approach has been adopted in conducting this research. There are two main hypotheses for this study: the first hypothesis is concerned with the relationship between the overall internal service quality and the five dimensions of service quality namely: tangibles, empathy, reliability, responsiveness and reliability. The second hypothesis focuses on the relationship between the front line staff segments of the production department and the five dimensions of internal service quality. The results of this research suggest that the perceptions and expectations of internal service customer segments plays a major role in achieving internal service quality. In addition, the importance of the INTSERVQUAL instrument in measuring internal service quality within the motor vehicle manufacturing environment is confirmed.
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An empirical study of client satisfaction with service recovery within a South African banking institution
- Authors: Davies, Gareth M
- Date: 2004
- Subjects: First National Bank of Southern Africa Banks and banking -- South Africa Bank management -- South Africa Financial services industry -- South Africa Banks and banking -- Customer services -- South Africa Banks and banking -- Customer services -- Effect of marketing on
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:725 , http://hdl.handle.net/10962/d1003845
- Description: In many industries, service is the critical determinant of success or failure. Service failure is almost inevitable, and this has the potential for the organisation to lose its customer. However, if implemented successfully, Service Recovery can rectify the breakdown in service, and turn angry, frustrated customers into loyal ones. Service Recovery is vital for profitability, especially for companies operating in the services market, like First National Bank (FNB). Unfortunately, few service firms know how satisfied customers are with their Service Recovery efforts, and FNB is no exception. This study attempted to rectify the situation, to ensure that the bank does not fail its customers a second time. The major focus of the study is to assess client satisfaction with Service Recovery (SR) from FNB. By using the RECOVSAT instrument (developed by Boshoff in 1999), the study aims to establish how effective FNB was in terms of the six dimensions of SR, namely communication, empowerment, feedback, atonement, explanation, and tangibles. The relationship between each of the dimensions and customer satisfaction, as well as between customer satisfaction and loyalty, was measured, and a hypothesis for each relationship rejected or accepted. The empirical results show that, from 702 complainants, a RECOVSAT score of 68% was computed, which could be regarded as only satisfactory. The dimensions of communication, explanation, atonement, and empowerment, had the strongest positive correlation with customer satisfaction, while feedback and tangibles, although positively correlated, were not statistically significant, and thus not as important as the first four dimensions. FNB performed best on tangibles (81%), then communication (75%), explanation (70%), atonement (68%), empowerment (62%), and lastly feedback (51%). The study reinforced the view that customer satisfaction is positively related to loyalty. Other findings were that, administration and errors were the most frequent complaints, followed by pricing, fees, and interest, while time delays/waiting were the third most numerous. Over 54% of complainants had been with the bank for over 10 years, which could be a problem if the customers had left the bank, as the profitability of a customer generally increases with time. Age and gender did not appear to be factors that influenced behaviour of complainants. In terms of the managerial implications, it is recommended that FNB implement a Customer-Complaint-Handling (CCH) system that is both national and inter-group. The bank should also focus on empowering employees, improving communication skills, explaining to customers why the problem occurred, apologising, and offering some atonement. By adopting the recommendations, FNB should improve their service recovery, and as a consequence, their customer satisfaction and loyalty, and profitability should also increase.
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An evaluation of "on-line" banking web sites in South Africa to determine essential design criteria
- Authors: Palmer, Lydia
- Date: 2004
- Subjects: Banks and banking -- South Africa Banks and banking -- Customer services -- South Africa Home banking services -- South Africa Electronic funds transfers -- South Africa Web sites -- Design
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:811 , http://hdl.handle.net/10962/d1007667
- Description: The use of the Web to carry out business on the Internet has become a viable option in all business sectors, and Internet banking in South Africa is no exception. The nature of business on the Internet in South Africa and the World is investigated. The extent of Internet banking in South Africa is ascertained and the expectations and perceived problems of online bankers are discussed. The importance of Human Computer Interface and Web Interface Design for successful business is promoted with a discussion of their guidelines and principles. Web Evaluation techniques and Tools are assessed and The "Gartner" Web evaluation tool is selected to evaluate the three bank Web sites. The results of the evaluation indicate that there are several generally well implemented design criteria used by all of the banks while some criteria are not implemented at all. Each bank is discussed individually to identify strong and weak features of their Web site design. Essential aspects of Web design have been proposed for inclusion during the design of "online" Banking Web sites.
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An evaluation of the MMPI-2 using South African pre-trial forensic patients prediction of criminal responsibility and assessment of personality characteristics
- Authors: Du Toit, Emile
- Date: 2004
- Subjects: Minnesota Multiphasic Personality Inventory , Forensic psychiatry -- South Africa , Criminal investigation -- South Africa , Medical jurisprudence -- South Africa , Evidence, Criminal -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2967 , http://hdl.handle.net/10962/d1002476 , Minnesota Multiphasic Personality Inventory , Forensic psychiatry -- South Africa , Criminal investigation -- South Africa , Medical jurisprudence -- South Africa , Evidence, Criminal -- South Africa
- Description: This study examines the utility of the MMPI-2 in predicting responsibility in pre-trial forensic patients, using a post hoc sample of 94 offenders from Sterkfontein Psychiatric Hospital in Gauteng. Firstly, the overall characteristics of the pre-trial forensic patients are discussed, following an analysis of demographic, clinical, criminal and MMPI-2 pre-trial data, as well as an overview of the Megargee typological classification of offenders. The sample is classified into Criminally Responsible (CR), Diminished Criminal Responsibility (DCR) and Not Criminally Responsible (NCR), and the CR and DCR groups are collapsed (CR/DCR) for many of the analyses when comparing them to the NCR group. Secondly, the variance of variables with responsibility is discussed, after examining one-way ANOVA’s of demographic, clinical, criminal and MMPI-2 variables, as well as an overview of high point pairs. Thirdly, discriminant analyses were conducted of demographic, clinical and MMPI-2 variables. When comparing the collapsed CR/DCR group to the NCR group, psychiatric diagnosis, presence of psychosis, the MMPI-2 Pa and Es scales, as well as race and substance abuse each had unique predictive power and created a substantial discriminative equation (F (6,70) = 45.732, p <0.0005) with a successful prediction rate of 96%. Using only MMPI-2 variables to predict responsibility showed significant unique contributions for the Pa, Es, MAC-R and Mf scales, with the BIZ scale not quite significant, and a fairly significant overall discriminant equation (F (5,73) = 6.474, p < 0.0005), with an overall successful prediction rate of 82%, with the MMPI-2 variables adding an additional 3% to the predictive power of the demographic and clinical variables. Similarly, when examining the more complex 3 group responsibility classification of CR, DCR and NCR, it was found that the demographic, clinical and MMPI-2 variables of psychiatric diagnosis, psychosis, race, substance abuse, and the Pa, Es and Ma scales all had significant contributions to a powerful discriminant analysis (F (14, 136) = 19.758, p < 0.0005) that was capable of correctly reclassifying almost 95% of the sample, and the MMPI-2 variables providing an increase in predictive power of 8%. Differences in responsible and not responsible pre-trial forensic patients are discussed, as well as the role of the MMPI-2 in assessing these differences, and the fact that it is highly likely that it adds more to the forensic assessment of responsibility than a 3% (CR/DCR versus NCR) or 8% (CR versus DCR versus NCR) increase in predictive power. Limitations of the study are discussed, together with recommendations for future research with the MMPI-2 for assessment of criminal responsibility. The suggestion is made that the MMPI-2 can become a valuable tool in South African forensic settings, not only in the assessment of responsibility and malingering, but also in the placement, management, follow-up and treatment of offenders, to maximize the limited resources in South Africa allocated for the rehabilitation of offenders, and minimize the risk of recidivism or rehospitalization.
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An exploration of factors that impact on levels of employee satisfaction and organisational performance : an organisational diagnosis
- Authors: Foot, Kirsten Joan
- Date: 2004
- Subjects: Employee motivation Job satisfaction Employees -- Rating of Psychology, Industrial Organizational change Hotels -- Employees -- South Africa -- Case studies
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3178 , http://hdl.handle.net/10962/d1007951
- Description: Organisations today, regardless of their function, exist in an environment that is characterised by change. In order to maintain a competitive advantage it is vital that organisations manage such change and are sensitive to their human resource. It is imperative for organisations to understand and explore the factors that impact on employee satisfaction and overall organisational performance. The hospitality industry is an industry that is notorious for low levels of pay and long working hours, and often dissatisfied employees. This research focused on a hotel, that is part of an international chain of hotels, which has recently undergone a rebranding process (a change from within). This research aimed to assess and explore factors that impact on levels of employee satisfaction and organisation/hotel performance, in other words it aimed to 'diagnose' the hotel's current status. The research was conducted in two phases. Phase one made use of a widely used measure of job satisfaction, the job descriptive index (JDI), that looked at five facets of job satisfaction namely: pay, opportunity for promotion, co-workers, supervision and the nature of work. Phase two further explored the results of the JDI (staff being very dissatisfied with pay and promotions opportunity) and further explored other areas of the organisation/hotel with the use of an organisational development model, Weisbord's Six-Box Model (1990). The 'boxes' included areas of purpose, structure, relationships, leadership, rewards and helpful mechanisms. These areas were explored with staff using focus groups. Heads of departments (management) and the deputy general manager of the hotel were interviewed using a semi-structured interview format, exploring similar issues to those researched with staff. Results indicated problems in the hotel with regard to purpose, a severe lack of communication and staff feeling they have little chance for promotion as well as pay structures being perceived as unfair. The overall leadership at the hotel was described as erratic, and relationships between management revealed high levels of mistrust. Due to limited research in the South African hospitality industry, much of the literature available is based on experiences in the United States of America or the United Kingdom. For this research, the researcher had few previous published findings and was unsure of the many issues that could possibly arise. However, the intervention was enjoyable and recommendations have been provided for the hotel to consider, so the hotel can go from "good to great".
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An exploration of how professional graphic design discourse impacts on innovation : a focus on the articulation of a South African design language in i-jusi
- Authors: Moys, Jeanne Louise
- Date: 2004
- Subjects: Graphic arts -- South Africa , Words in art , Writing in art
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3468 , http://hdl.handle.net/10962/d1002923 , Graphic arts -- South Africa , Words in art , Writing in art
- Description: This study examines the graphic design industry’s call for ‘a South African design language’ in post-apartheid South Africa and how the non-commercial publication i-jusi is envisaged as a space for graphic designers to innovate a South African design language. The central premise of this research is that graphic design, as a form of cultural production, is discursive. In this respect, graphic design practice is constructed and constrained by professional discourse, which is in turn informed by social structures. However, discourse is also a site of contestation and graphic designers may challenge or negotiate professional discourse in their practice. Thus, as Wolff (1981) argues, the possibility for innovation within graphic design practice may exist at a particular historical moment, although this possibility is itself situated within social structures. In this study, the impact of professional graphic design discourse on the attempt to innovate a South African design language in i-jusi is explored. Utilising qualitative interviews and other texts selected from graphic design commentary (conference presentations and published articles), the motivations of the producers of i-jusi are examined with a view to assessing how their articulation of a South African design language is informed by professional graphic design discourse.
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An exploration of the impact of AIDS-related losses and role changes on grandmothers
- Authors: Burt, Mary
- Date: 2004
- Subjects: HIV infections -- Social aspects -- South Africa -- Eastern Cape HIV infections -- Economic aspects -- South Africa -- Eastern Cape AIDS (Disease) -- Social aspects -- South Africa -- Eastern Cape AIDS (Disease) -- Economic aspects -- South Africa -- Eastern Cape AIDS (Disease) -- Patients -- Care -- South Africa -- Eastern Cape Bereavement -- Psychological aspects -- Eastern Cape Foster parents -- South Africa -- Eastern Cape Loss (Psychology) Grandmothers -- South Africa -- Psychology
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3131 , http://hdl.handle.net/10962/d1006487
- Description: The US Bureau of the Census (1999) projected that by 2004, 14 million people in sub-Saharan Africa will develop full blown AIDS, making this region by far the largest disease burden in the world (World Health Organization, 2002). The United Nations AIDS Programme judged South Africa to have the leading number of people living with HIV/AIDS worldwide (World Health Organisation, 2002). To date there has been extensive research conducted on the socio-economic impacts of HIV/AIDS on families in Africa. However an area of investigation that has remained largely underreported is the inquiry into the psychological impacts of HIV/AIDS on elderly caregivers. In African families older women increasingly have to provide care to their adult children with AIDS and their orphaned grandchildren. However few research studies have assessed the experience of parental caregiving and its psychological impacts on these women. This qualitative research study hypothesised that the role of primary parental caregiver in fact causes a range of psychologically distressing states, which serve to compromise the psychological well-being of these caregivers. To investigate this hypothesis three Xhosa speaking women living in informal settlements in Grahamstown, in the Eastern Cape Province of South Africa were selected for the study. The women were interviewed by means of semi-structured interviews, which consisted of questions related to their caregiving experiences, their experiences of loss, their choice of coping strategies, the role of support networks and their experiences of foster care responsibilities. The interviews were transcribed and analysed using a grounded hermeneutic approach. The research results confirmed the working hypothesis. The research revealed that although it was considered culturally appropriate for older women to care for their children and grandchildren, their caregiver roles caused significant psychological distress. Their distress was related to: emotional and physical exhaustion, complicated grief reactions and ongoing emotional and physical upheaval related to foster care responsibilities. Based on the results, the research recommendations emphasised the need for continual awareness of the psychological implications of caregiving for older African women with the aim to preserve their capacity to function as the primary caring resource to families struck by HIV/AIDS.
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An interpretive use of drawings to explore the lived experiences of orphaned children living with HIV/AIDS in South Africa
- Authors: Steenveld, Clint Michael
- Date: 2004
- Subjects: AIDS (Disease) -- South Africa AIDS (Disease) -- Social aspects -- South Africa HIV infections -- South Africa HIV infections -- Social aspects -- South Africa AIDS (Disease) -- Psychological aspects HIV infections -- Psychological aspects -- South Africa AIDS (Disease) in children -- Psychological aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3099 , http://hdl.handle.net/10962/d1004374
- Description: Against the backdrop of the growing problem of AIDS orphans in South Africa and greater sub-Saharan Africa, this qualitative enquiry examines the lives of three South African orphaned children living with HIV / AIDS in a children's home in Cape Town. It aims to generate rich, child-centred descriptions of some of the significant experiences of the children's lives. Drawings, dialogue and narrative were employed to generate the primary data. This was supplemented by collateral interviews and other relevant records, e.g. medical and biographical. Existential-phenomenological theory informed the approach to data collection and analysis. Each child produced a series often to twelve impromptu drawings over a period often weeks. These drawings and transcripts of the children's verbal descriptions of their drawings were extensively analysed. Significant themes for each participant as well as themes common to all three were identified. Some of the central themes emerging include loss, abandonment, death, disease awareness and coping. The children's ability to develop adaptive coping mechanisms and resilience in the face of traumatic loss and terminal illness was a particularly outstanding feature of the findings. Recommendations are made regarding future research to address the lack of qualitative, child-focused investigations as well as appropriate interventions for addressing the psychosocial needs of orphaned children living with HIV/AIDS.
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An investigation into school learners' perceptions of linguistic politeness norms within and across cultures
- Authors: Kenyon, Tracy Karen
- Date: 2004 , 2013-05-31
- Subjects: Language policy -- South Africa , Multilingualism -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Language and culture -- South Africa -- Eastern Cape , Multiculturalism -- South Africa -- Eastern Cape , Social interaction -- South Africa -- Eastern Cape , Sociolinguistics -- South Africa -- Eastern Cape , Intercultural communication -- South Africa -- Eastern Cape , Speech acts (Linguistics)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2371 , http://hdl.handle.net/10962/d1004715 , Language policy -- South Africa , Multilingualism -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Language and culture -- South Africa -- Eastern Cape , Multiculturalism -- South Africa -- Eastern Cape , Social interaction -- South Africa -- Eastern Cape , Sociolinguistics -- South Africa -- Eastern Cape , Intercultural communication -- South Africa -- Eastern Cape , Speech acts (Linguistics)
- Description: The assumption underlying this study is that cultures differ in terms of politeness norms. Often people from different cultures approach one another in what they think is an appropriate manner and the outcome is miscommunication. This may be attributed to differing cultural norms and this study aims to examine what a sample of school learners perceive to be polite behaviour when making requests and their reasons for doing so. This study focuses on perceived politeness norms (Brown and Levinson 1978) in English across selected South African cultures. The individuals are seen as reflecting a cultural identity, using norms that they feel are appropriate in given situations. Previous researchers have endeavoured to show that politeness norms are universal, but it has emerged that this is not always the case. When people from differing language and cultural backgrounds come into contact they have to find a common ground for their interaction to be successful (Lustig and Koester 1999). Of particular interest is the way people request things, both the way they phrase their request and their reasons for phrasing it this way. In order to investigate this, twenty-nine same-sex pairs of Grade 10 learners were selected from three schools with different cultural backgrounds in Grahamstown. These learners were required to complete a Discourse Completion Test, which contained both Think-Aloud and Retrospection Procedures, while they were being audio-taped. This data was transcribed and analysed using a model that was developed and adapted to describe request strategies. This data is shown through the use of basic statistics, even though it is primarily qualitative. The data is given this qualitative dimension by looking at the factors that the co-conversants attend to. The recorded data shows that although second language speakers of English have a formula for requesting things, they are not always able to articulate why they use the request strategies they do. It appears that English first language speakers and speakers who have English as an additional language request things similarly, but the first language speakers have access to a greater variety of politeness strategies. They also attend to different contextual features. This shows that while the need to be polite seems to be universal, the expectations of the speakers will be different and while a first language speaker of English would not misinterpret the force of a given speech act, they may feel that the person who has English as an additional language is rude. Sensitivity is therefore called for in order to combat mutual negative stereotyping and misunderstandings. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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An investigation into school principals' experience and perceptions of participative management
- Authors: Mungunda, Charles
- Date: 2004
- Subjects: Education -- Namibia Educational change -- Namibia School management and organization -- Namibia Educational leadership -- Namibia Management -- Employee participation -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1599 , http://hdl.handle.net/10962/d1003481
- Description: The purpose of this research was to investigate three principals’ perceptions and experience of participative management and to gain insight into and understanding of the dimensions involved in participative management from the perspective of the three principals. The research was conducted within the interpretive paradigm, since I was interested in understanding the subjective experience and individual perceptions of three principals with regard to participative management and the meaning they attach to it in their natural settings: how they describe, interpret and make sense of participative management. Data were collected by means of questionnaires, interviews and observation. The findings indicate overwhelming support for the notion that participative management (collegiality) does have a positive influence with regard to creating a sense of common goals, shared vision, a sense of ownership, commitment and improved human relations. The respondents emphasized the critical role of the leader in facilitating the implementation of collegiality as well as an increasing awareness of the potential of participative management to improve human development through delegation. The responses revealed interesting paradoxes with regard to the tensions between leadership and leaderless organizations, as well as between autonomy and interdependence. Responses also reflect the sentiment that participative management should be selective, involving only those with the necessary skills and expertise in the decision-making process. While there is an appreciation of the benefits to be derived from collegiality, critical statements about participative management include the time-consuming nature of participative management, and the notion that participative management impinges on the authority of the principals.
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An investigation into the captive spawning, egg characteristics and egg quality of the mud crab (Scylla serrata) in South Africa
- Authors: Churchill, Giles John
- Date: 2004
- Subjects: Scylla serrata , Crabs -- South Africa , Scylla serrata -- South Africa , Crabs -- Eggs -- Incubation , Crabs -- Spawning
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5376 , http://hdl.handle.net/10962/d1015963
- Description: The source of a reliable supply of seed is one of the most important factors determining the success of aquaculture. At present mud crab culture is reliant on wild caught juveniles, which limits the expansion of mud crab farming globally. This, coupled with the paucity of knowledge of the spawning and egg characteristics of mud crabs, prompted the investigation into the captive spawning, incubation and egg quality of Scylla serrata in South Africa. A total of 112 mature females were caught from three estuaries in northern KwaZulu Natal and acclimated to captive conditions. Mature females were present in the estuaries throughout the year and ranged from 90 to 200 mm carapace width. Except for 40 crabs all the females spawned in captivity. On average spawning took place 38 ± 23 days after capture but was not dependent on crab size. Fecundity was significantly correlated to crab size (p = 0.026), with larger females producing more eggs. The average fecundity per batch was 5.79 ± 2.07 million eggs. Hatch success rate for all egg batches was high averaging 84 ± 6 %. Egg dropping occurred in all egg batches during incubation. On average 6.5 % of the egg mass was dropped during incubation. At the average temperature of 27⁰C eggs in the incubation system hatched within 292 ± 12 hours after extrusion. In-vitro incubation of eggs proved to be an ineffective means of incubating Scylla serrata eggs with a hatch success rate of only 25 ± 5 %. Egg quality was assessed both directly, using variables such as hatch success rate and hatch synchronicity and retrospectively by using stress tests and comparing survival of larvae from different coloured egg batches. Lipid class composition and fatty acid methyl ester content for 28 batches of eggs and 16 batches of larvae were analyzed. The biochemical composition of the egg was correlated to survival of larvae in the stress tests to ascertain if the lipid content of the eggs determines their quality. Stress tests were used to retrospectively assess egg quality. Four stressors were administered to newly hatched larvae and the LD50 values recorded. An average LD50 of 64 hours was recorded for the starvation tests, 40% for the salinity tests, 37 ppm for the formalin tests and 39.7 mg/l NH3 for the ammonia stress tests was recorded. Egg colour ranged from pale yellow to orange-red. Egg colour was not influenced by female size or the time the females spent in captivity prior to spawning. Egg colour can therefore not be used as an indicator of quality. The lipid profiles of newly extruded eggs had no effect on hatch synchronicity or hatch success rate. However, the stress tests identified female size (p ≤ 0.02), DHA content of the egg (p ≤ 0.02), Σ omega-3 fatty acids of eggs (p ≤ 0.02) and EPA content of eggs (p ≤ 0.007) as possible determinants of egg quality. Larger crabs tended to produce poorer quality eggs. Egg quality also decreased as the amount of DHA, EPA and the Σ omega-3 fatty acids decreased in the eggs. To summarize, the results of this study indicated that the following parameters affect egg quality - crab size, DHA, EPA and Σ omega-3 fatty acid content of eggs.
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An investigation into the neuroprotective effects of melatonin in a model of rotenone-induced neurodegeneration
- Authors: Kadanthode, Rubina John
- Date: 2004
- Subjects: Melatonin , Nervous system -- Degeneration -- Treatment , Rotenone
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3763 , http://hdl.handle.net/10962/d1003241 , Melatonin , Nervous system -- Degeneration -- Treatment , Rotenone
- Description: Parkinson’s disease, one of the most common neurodegenerative disorders associated with ageing, is characterised by abnormal and profound loss of nigrostriatal dopaminergic neurons. The cause of Parkinson’s disease is unknown, but epidemiological studies suggest an association with pesticides and other environmental toxins, and biochemical studies implicate oxidative damage and mitochondrial impairment, particularly at the level of complex I enzyme. Recently, rotenone, a commonly used organic pesticide and a classical inhibitor of mitochondrial complex I has been reported to reproduce the specific features of Parkinson’s disease in rodents. The mitochondrial respiratory chain is one of the most important sites of reactive oxygen species production under physiological conditions. Toxic free radicals have been implicated in a variety of neurodegenerative diseases as well as ageing itself. Melatonin, a secretory product of the pineal gland is a multifaceted free radical scavenger and natural antioxidant. In the present study, the neuroprotective effects of melatonin against the environmental neurotoxin, rotenone was investigated. Initial studies showed that inhibition of mitochondrial complex I enzyme by rotenone induced superoxide radical generation. Melatonin, administered to the rat in vivo and in vitro was able to offer neuroprotection by curtailing the production of superoxide radicals induced by rotenone. Mitochondria, being the major target of rotenone, the effects of melatonin were investigated at the mitochondrial level. Melatonin was able to increase the electron transport chain activity thus preventing the respiratory inhibition by rotenone. The pineal hormone also counteracted the action of rotenone on complex I enzyme. These results suggest melatonin’s ability to potentially limit the free radical generation and thereby modulate the mitochondrial functions. The detection and measurement of lipid peroxidation is the evidence most frequently cited to support the involvement of free radical reactions in toxicology and in human disease. Melatonin also offered significant protection in vivo and in vitro against rotenone induced lipid peroxidation. Since iron plays a major role in oxidative damage and in the progression of Parkinson’s disease, the effect of melatonin on both rotenone and iron induced lipid peroxidation was investigated, the results of which show that melatonin affords protection and this was suggested to be due to its interaction with the rotenone-iron complex that might have formed. Electrochemical studies were further used to characterise the interactions between melatonin, rotenone and iron (III). Melatonin was shown to bind with iron and thus reducing their toxicity. Histological studies were undertaken to assess the effects of melatonin on rotenone induced toxicity on the dopaminergic neurons in the rat brain. Rotenone treated brains showed extensive neuronal damage whereas with melatonin less damage was observed. Rotenone induces apoptosis via reactive oxygen species production and apoptotic cell death has been identified in PD brains. Furthermore, the apoptotic cell death was detected and quantified by the TUNEL staining. Rotenone treated sections showed signs of apoptosis whereas with melatonin, less apoptotic damage was observed. The findings of this study indicate that the neurohormone, melatonin may protect against rotenone-induced neurodegeneration. Since melatonin production falls substantially during ageing, the loss of this antioxidant is theorized to be instrumental in the degenerative processes associated with advanced age. Considering how devastating diseases such as Parkinson’s disease, are to a patient and the patient’s families, the discovery of protective agents are a matter of urgency. Further investigations using the pesticide model will help to determine the involvement of environmental exposure in the pathogenesis of human diseases as well as to test therapeutic strategies for the treatment of such diseases.
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Attitudes of isiXhosa-speaking students at the University of Fort Hare towards the use of isiXhosa as a language of learning and teaching (LOLT)
- Authors: Dalvit, Lorenzo
- Date: 2004
- Subjects: Native language and education -- South Africa -- Eastern Cape , Xhosa language -- Study and teaching (Higher) -- South Africa , English language -- Study and teaching (Higher) -- South Africa , Education, Bilingual , Language and education -- South Africa , Language policy -- South Africa , University of Fort Hare -- Students -- Attitudes
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2343 , http://hdl.handle.net/10962/d1002625 , Native language and education -- South Africa -- Eastern Cape , Xhosa language -- Study and teaching (Higher) -- South Africa , English language -- Study and teaching (Higher) -- South Africa , Education, Bilingual , Language and education -- South Africa , Language policy -- South Africa , University of Fort Hare -- Students -- Attitudes
- Description: The present work presents and discusses the results of a survey of a sample of isiXhosa-speaking students at the University of Fort Hare (Alice campus) and their attitudes towards the possible introduction of isiXhosa as a medium of instruction at this institution. More specifically, the research focuses on, among other things, the students’ attitudes towards English and isiXhosa and their opinions and beliefs about the introduction of dual-mediumship and its possible consequences. The survey methods used are a questionnaire survey as well as follow-up interviews, supplemented by on-campus observation. The results are first analysed as a whole, and then split into different categories according to a set of background variables (gender, year of study, subject studied etc). This analysis indicates that, while English is recognised as the dominant language in South Africa and, more specifically, in the domain of education, some categories of respondents acknowledge the usefulness of isiXhosa as an additional medium of instruction. This survey clearly shows that it makes little sense to present isiXhosa-speaking students with a rigid choice between the existing English-medium and a dual-medium (English and isiXhosa) policy. If dual-mediumship is ever to be implemented, respondents seem to consider the use of isiXhosa as a medium of instruction more appropriate in the first years of study, for selected subjects and in some domains within the academic context rather than others. This study is part of a growing set of surveys on the attitudes of university students towards the use of African languages in education, and can be fruitfully compared with similar research at other institutions. Moreover, the results of the present research can be used to inform future decisions regarding language policy at the University of Fort Hare.
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Becoming a journalist : a study into the professional socialisation and training of entry-level journalists at the Cape Argus newspaper
- Authors: Maughan, Karyn
- Date: 2004
- Subjects: Argus (Cape Town, South Africa) , Journalism -- Study and teaching -- South Africa , Journalists -- Training of -- South Africa , Journalists -- Selection and appointment -- South Africa , Journalists -- Education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3507 , http://hdl.handle.net/10962/d1007553 , Argus (Cape Town, South Africa) , Journalism -- Study and teaching -- South Africa , Journalists -- Training of -- South Africa , Journalists -- Selection and appointment -- South Africa , Journalists -- Education -- South Africa
- Description: This thesis attempts to examine the construction of 'professionalism' within the newsroom of the Cape Argus, an English-medium newspaper in post-apartheid South Africa. It is a qualitative study which tries to evaluate how a particular mainstream media discourse of 'professionalism' is enacted and struggled over in the attitudes, behaviour and perceptions of entry-level journalists and news managers at the newspaper. It asks what the process of 'becoming a journalist' requires of entry-level journalists in terms of their previous education and personal qualities - and examines the newsroom strategies employed by news managers when entry-level journalists do not meet these particular requirements. This thesis looks at how the pressures of operating a daily English-language commercial newspaper may shape both the 'professional' expectations of news managers and their ability to positively contribute to entry-level journalists' 'newsroom training'. In attempting to examine the nature of journalistic 'professionalism', this study explores the ideology of knowledge construction within mainstream South African media. Operating from a 'radical democratic' perspective of journalism, which prioritises journalism as a vehicle for diverse social, cultural and political expression, this thesis suggests that South African media education needs to enable journalism students' understanding of the ideological construction of journalistic 'professionalism'.
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Biochemical characterization of plasmodium falciparum heat shock protein 70
- Authors: Matambo, Tonderayi Sylvester
- Date: 2004
- Subjects: Plasmodium falciparum , Malaria -- Prevention , Protein folding , Proteins -- Purification , Heat shock proteins
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4134 , http://hdl.handle.net/10962/d1015767
- Description: Plamodium falciparum heat shock protein (PfHsp70) is believed to be involved in the cytoprotection of the malaria parasite through its action as a molecular chaperone. Bioinformatic analysis reveal that PfHsp70 consists of the three canonical Hsp70 domains; an ATPase domain of 45 kDa, Substrate binding domain of 15 kDa and a C-terminal domain of 10 kDa. At the C-terminus there is a GGMP repeat motif that is commonly found in Hsp70s of parasitic origins. Plasmodium falciparum genome is 80% A-T rich, making it difficult to recombinantly express its proteins in Escherhia coli (E. coli) as a result of rare codon usage. In this study we carried out experiments to improve expression in E. coli by inserting the PfHsp70 coding region into the pQE30 expression vector. However multiple bands were detected by Western analysis, probably due to the presence of rare codons. The RIG plasmid, which encodes tRNAs for rare codons in particular Arg (AGA/AGG), Ile (AUA) and Gly (GGA) was engineered into the E. coli strain resulting in production of full length PfHsp70. Purification was achieved through Ni²⁺ Chelating sepharose under denaturing conditions. PfHsp70 was found to have a very low basal ATPase activity of 0.262 ± 0.05 nmoles/min/mg of protein. In the presence of reduced and carboxymethylated lactalbumin (RCMLA) a 11-fold increase in ATPase activity was noted whereas in the presence of both RCMLA and Trypanosoma cruzi DnaJ (Tcj2) a 16-fold was achieved. For ATP hydrolysis kcat value of 0.003 min⁻¹ was obtained whereas for ADP release a greater kcat value of 0.8 min⁻¹ was obtained. These results indicated that rate of ATP hydrolysis maybe the rate-determining step in the ATPase cycle of PfHsp70.
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Changes in energy use patterns in the Bushbuckridge Lowveld of the Limpopo Province, South Africa: eleven years on
- Authors: Madubansi, Mainza
- Date: 2004
- Subjects: Energy consumption -- South Africa -- Limpopo
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4756 , http://hdl.handle.net/10962/d1007139 , Energy consumption -- South Africa -- Limpopo
- Description: This research reports on the energy transition that has taken place in the Bushbuckridge district between 1991 and 2002. It is a follow up to a similar study that was done in 1991 investigating a number of aspects of energy use. It uses the 1991 study as a baseline and aims to explore how the passage of time, growth of the local population and changes in incomes and the availability of fuels have affected the patterns of fuel use in the region in the past eleven years. A structured interview approach was used for most aspects of the study. The interview schedule included sections on types, amounts and reasons for use and non-use of 13 different energy sources as well as data on income levels, household size and other economic parameters. Analysis of the consumption patterns of the different fuel types revealed that between the two survey periods, households in the sample settlements went through some pronounced changes in patterns of fuel use, particularly those that had acquired electricity. The introduction of electricity in the region had certainly played a major role in spurring the energy transition. Fuels that were previously used for lighting, powering entertainment appliances and refrigeration had been displaced by electricity. In terms of cooking and other thermal application, however, the vast majority of households in all the sample settlements continued using fuelwood and complemented it to a lesser extent with paraffin and electricity. In both surveys, the use or non-use of available fuels in the region was influenced by several factors. Common reasons for non-use of certain fuel types included expense, lack of appliances, the risk involved in using such fuels and the preference for other fuels. Reasons for use were mainly related to the low cost of the fuel and the fuel’s ability to meet particular end uses. Although incomes in the region had increased between 1991 and 2002, they were still below the poverty line. Activities from which households obtained their income remained the same. Old age pension, migrant wages and the informal sector remained the largest contributors of income to most households. Other indicators of relative wealth and poverty, like ownership of vehicles, bicycles and beds remained the same.
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Cleaning of fouled membranes using enzymes from a sulphidogenic bioreactor
- Authors: Melamane, Xolisa
- Date: 2004
- Subjects: Membrane filters , Membrane filters -- Fouling , Enzymes -- Biotechnology , Enzymes -- Purification , Water -- Purification -- Membrane filtration , Ultrafiltration
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4133 , http://hdl.handle.net/10962/d1015764
- Description: Maintenance of membrane performance requires inevitable cleaning or defouling of fouled membranes. Membrane cleaning using enzymes such as proteases, lipases, α-glucosidases from a sulphidogenic bioreactor was investigated. At first, dilute and concentrated enzyme extract were prepared form the sulphidogenic pellet. Enzyme assays on 0.5 % azocaisen, 1 % triacetin and 1 mg/ml ρ-nitrophenyl-α-D-glucopyranoside were performed using the concentrated enzyme extract (0 – 200 mg/ml). For membrane fouling, an abattoir effluent was obtained from Ostritech Pty (Ltd), Grahamstown, South Africa. The effluent was characterised for presence of potential foulants such as lipids, proteins, amino acids and carbohydrates. Static fouling of polysulphone membranes (0.22 μm, 47 mm) was then performed using the abattoir effluent. Cleaning of the fouled membranes was also performed using at first the dilute and then the concentrated form (200 mg/ml) of enzyme extracts. Qualitative and quantitative biochemical analysis for proteins, lipids and carbohydrates was performed to ascertain the presence of foulants on polysulphone membranes and their removal by dilute or concentrated enzyme extracts. The ability of dilute enzyme extracts to remove proteins lipids, and carbohydrates fouling capillary UF membrane module; their ability to restore permeate fluxes and transmembrane pressure after cleaning/defouling was also investigated. Permeate volumes from this UF membrane module were analysed for protein, amino acids, lipids, and carbohydrates concentrations after fouling and defouling. Fouling was further characterized by standard blocking, cake filtration and pore blocking models using stirred UF cell and polyethersulphone membranes with MWCO of 30 000, 100 000 and 300 000. After characterization of fouling, polyethersulphone membranes with MWCO of 30 000 and 300 000 were defouled using the concentrated enzyme extract (100 mg ml). Enzyme activities at 200 mg/ml of enzyme concentration were 8.071 IU, 86.71 IU and 789.02 IU for proteases, lipases and α-glucosidases. The abattoir effluent contained 553 μg/ml of lipid, 301 μg/ml of protein, 141 μg/ml of total carbohydrate, and 0.63 μg/ml of total reducing sugars. Proteins, lipids and carbohydrates fouling polysulphone membranes after a day were removed by 23.4 %, when a dilute enzyme was used. A concentrated enzyme extract of 200 mg/ml was able to remove proteins, lipids and carbohydrates up to 5 days of fouling by 100 %, 82 %, 71 %, 68 % and 76 % respectively. Defouling of dynamically fouled capillary ultrafiltration membranes using sulphidogenic proteases was successful at pH 10, 37°C, within 1 hour. Sulphidogenic proteases activity was 2.1 U/ml and flux Recovery (FR %) was 64. Characterization of fouling revealed that proteins and lipids were major foulants while low concentration of carbohydrates fouled polyethersulphone membranes. Fouling followed standard blocking for 10 minutes in all the membranes; afterwards fouling adopted cake filtration model for membranes with 30 000 MWCO and pore blocking model for membranes with 300 000 MWCO. A concentration of 100 mg/ml of enzyme extract was able to remove fouling from membranes with MWCO of 30 000. Defouling membranes that followed pore blocking model i.e. 300 000 MWCO was not successful due to a mass transfer problem. From the results of defouling of 30 000 and 300 000 MWCO it was concluded that defouling of cake layer fouling (30 000 MWCO) was successful while defouling of pore blocking fouling was unsuccessful due to a mass transfer problem. The ratio of enzymes present in the enzyme extract when calculated based on enzymatic activity for proteases, lipases and α-glucosidases was 1.1 %, 11 % and 87.9 %. It was hypothesized that apart from proteases, lipases, α and β-glucosidases; phosphatases, sulphatases, amonipeptidases etc. from a sulphidogenic bioreactor clean or defoul cake layer fouling by organic foulants and pore blocking fouling provided the mass transfer problem is solved. However, concentration of enzymes from a sulphidogenic bioreactor has not been optimized yet. Other methods of concentrating the enzyme extract can be investigated for example use of organic solvents.
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Composition portfolio
- Authors: Prince, Lloyd T
- Date: 2004
- Subjects: Music -- South Africa Composition (Music)
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:2652 , http://hdl.handle.net/10962/d1002318
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