The development and application of ecological risk assessment in South African water resource management
- Authors: Claassen, Marius
- Date: 2006
- Subjects: Ecological risk assessment -- South Africa Water resources development -- South Africa Water quality management -- South Africa Water-supply -- Management -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:6036 , http://hdl.handle.net/10962/d1006177
- Description: The provision of goods and services by aquatic ecosystems plays an important role in socio-economic development and livelihoods in the southern African region. Water resource management in South Africa developed from an agrarian and pastoral focus up to 1956 to also supporting mining and industrial activities. This led to the introduction of the resource water quality objectives and pollution prevention approaches, which balanced the needs for development and protection. Prior to 1994, access to water resources was limited to riparian property owners and a minority of the population who controlled industrial and mining activities. The establishment of a democratic government amplified the need for accelerated socio-economic development, with equity, efficiency and sustainability being the principles of such development. New approaches were needed, which could achieve these development objectives and secure the resource base for future generations. An overview of the scientific process highlighted a risk based approach as potentially supporting the much needed balance between development and protection. The aims of this thesis is to develop a framework and process for the application of ecological risk assessment to water resource management in South Africa, to use case studies to draft guidelines for ecological risk assessment and to assess the degree to which ecological risk assessment can contribute to effective water resource management in South Africa. The United States Environmental Protection Agency’s guidelines for ecological risk assessment were identified amongst international best practice as meeting the requirements for local application. A framework was drafted for ecological risk assessment in South Africa, with the main phases being to agree on objectives, formulate the analysis plan, analyse information, characterise risk and manage risk. Modifications from the Environmental Protection Agency’s process include the order of activities in the first phase, the explicit testing of hypotheses and clarification of the evaluation of existing data or collection of new data. An industrial effluent case study was used to assess the applicability of the proposed framework. The case study dealt specifically with the assessment of risks posed by current conditions and long term licence conditions. The framework was found to be useful to identify weaknesses in the established monitoring programme and to evaluate lines of evidence to assess the degree to which the stated conditions would have unacceptable consequences. The study highlighted several weaknesses in the suggested framework, of which the most critical is the interpretation of the risk hypothesis as a testable null hypothesis. It became clear that cause-effect relationships should be stated as the risk hypothesis, whereas the assessment should evaluate expressed or expected conditions against a risk profile for a given stressor to benefit fully from the risk assessment approach. Changes to the framework terminology were suggested as well as nested feedback loops to allow for iterative processes where new information becomes available. The proposed guidelines incorporate the learning from the case study application as well as feedback from a peer review process. The guidelines incorporate the suggested actions under each phase as well as notes providing the rationale for each step. Three case study outlines were provided to assist users with the interpretation of the guidelines in different applications. The proposed guidelines are applied in an ecological Reserve determination case study, which specified the ecological water quality requirements. The study found that a risk-based approach was followed in the development of the water resource management policy, but the Reserve determination method is generally hazard based, with site specific modifications of the target values being allowed on a conservative basis. The case study highlighted a lack of readiness of water resource managers to accommodate scientific results expressed as probability distributions in support of management decisions. The thesis is concluded with a discussion of the key learning points of the ecological risk assessment development process. The evaluation highlights the move from stating and testing a null hypothesis to stating the risk hypothesis and evaluating the stated conditions against a risk profile. Several implementation challenges are highlighted, with specific recommendations made for adopting the proposed guidelines.
- Full Text:
The development and assessment of a generic carbamazepine sustained release dosage form
- Authors: Patel, Fathima
- Date: 2006
- Subjects: Carbamazepine Pharmacokinetics Drugs -- Controlled release Drugs -- Dosage forms Tablets (Medicine) Drugs -- Administration
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3784 , http://hdl.handle.net/10962/d1003262
- Description: Carbamazepine (CBZ) is a first-line drug used for the treatment of partial and tonic-clonic seizures. It is also the drug of choice for use during pregnancy and recommended for the treatment of seizure disorders in children. CBZ possesses the ability to induce metabolism of drugs that are transformed in the liver and has the unique ability to induce its own metabolism by a phenomenon known as ‘auto- induction’, where its biological half-life is significantly reduced during chronic administration. Large doses of CBZ are often prescribed as daily divided doses and this often adversely affects patient compliance, with the result that therapy is ineffective. A sustained-release dosage form containing CBZ is currently marketed as Tegretol® CR and the development of a generic product would provide patients with an equivalent product with a similar dosing frequency, at a reduced cost. Therefore, the development of a polymer-based matrix tablet was undertaken to produce a sustained-release dosage form of CBZ, since these dosage forms are relatively simple and cheap to produce when compared to other, more sophisticated forms of sustained-release technology. Preformulation studies were conducted to assess moisture content of excipients and dosage forms and to identify possible incompatibilities between CBZ and potential formulation excipients. Furthermore, studies were conducted to assess the potential for polymorphic transitions to occur during manufacture. Stability testing was conducted to assess the behaviour of the dosage forms under storage conditions that the product may be exposed to. Dissolution testing was undertaken using USP Apparatus 3, which allowed for a more realistic assessment and prediction of in vivo drug release rates. Samples were analysed using a high performance liquid chromatographic method that was developed and validated for the determination of CBZ. Tablets were manufactured by wet granulation and direct compression techniques, and the resultant drug release profiles were evaluated statistically by means of the f1 and f2 difference and similarity factors. The f2 factor was incorporated as an assessment criterion in the design of an artificial neural network that was used to predict drug release profiles and formulation composition. A direct compression tablet formulation was successfully adapted from a prototype wet granulation matrix formulation and a number of formulation variables were assessed to establish their effect(s) on the dissolution rate profile of CBZ that resulted from testing of the dosage forms. The particle size grade of CBZ was also investigated and it was ascertained that fine particle size grade CBZ showed improved drug release profiles when compared to the coarse grade CBZ which was desirable, since CBZ is a highly water insoluble compound. Furthermore, the impact of the viscosity grade and proportion of rate-controlling polymer, viz., hydroxypropyl methylcellulose was also investigated for its effect on drug release rates. The lower viscosity grade was found to be more appropriate for use with CBZ. The type of anti-frictional agent used in the formulations did not appear to affect drug release from the polymeric matrix tablets, however specific compounds may have an effect on the physical characteristics of the polymeric tablets. The resultant formulations did not display zero-order drug release kinetics and a first-order mathematical model was developed to provide an additional resource for athematical analysis of dissolution profiles. An artificial neural network was designed, developed and applied to predict dissolution rate profiles for formulation. Furthermore, the network was used to predict formulation compositions that would produce drug release profiles comparable to the reference product, Tegretol® CR. The formulation composition predicted by the network to match the dissolution profile of the innovator product was manufactured and tested in vitro. The formulation was further manipulated, empirically, so as to match the in vitro dissolution rate profile of Tegretol® CR, more completely. The test tablets that were produced were tested in two health male volunteers using Tegretol® CR 400mg as the reference product. The batch used for this “proof of concept” biostudy was produced in accordance with cGMP guidelines and the protocol in accordance with ICH guidelines. The test matrix tablets revealed in vivo bioavailability profiles for CBZ, however, bioequivalence between the test and reference product could not be established. It can be concluded that the polymeric matrix CBZ tablets have the potential to be used as a twice-daily dosage form for the treatment of relevant seizure disorders.
- Full Text:
The dynamics of difference: oppression, cross-cultural liberation and the problems of imperialism and paternalism
- Authors: Oelofsen, Marianna Christina
- Date: 2006
- Subjects: Oppression (Psychology) , Culture conflict , Multiculturalism , Political ethics , Imperialism , Paternalism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2716 , http://hdl.handle.net/10962/d1002846 , Oppression (Psychology) , Culture conflict , Multiculturalism , Political ethics , Imperialism , Paternalism
- Description: This dissertation defends an account of oppression and supports a specific means of engaging with oppression cross-culturally. The project examines whether it is defensible to interfere in other cultures at all. Both the cultural relativist and the neo-imperialist approaches are argued to be an inadequate response to the question of whether it is defensible to interfere in other cultures, as both these approaches neglect the autonomy of the agents concerned. This project has two related goals. It first advances an answer to the question ‘what is oppression?’ An account of oppression is developed which will enable oppression to be identified cross-culturally. In order to start constructing an approach which will be adequate to respond to the question of interference, it is necessary to consider a means of identifying oppression crossculturally. The second objective is to examine the possibility of non-imperialistic and nonpaternalistic cross-cultural liberation projects. The first aim (advancing an account of oppression), is executed through arguing for an ethical framework which will be helpful in this context, and arguing for an account of oppression derived from this framework. The second aim (examining the possibility of non-imperialistic and non-paternalistic liberation), is carried out in two parts. The first part responds to two standard objections from cultural relativism, which would accuse a universal account such as mine of imperialism and paternalism. The first objection claims that a universalist account neglects historical and cultural difference, while the second objection claims that it neglects autonomy. In responding to these objections, it is noted that while my responses prove, theoretically, that a universal account of oppression need not lead to imperialism or paternalism, there is a danger that the account could become imperialistic and paternalistic in its application. With the intention of dealing with this problem, I advance a methodology of cross-cultural understanding which would reduce the likelihood of imperialism and paternalism in liberation projects. This notion of cross-cultural understanding is the most important contribution of this project. The objective is not to give practical judgments on when a specific liberation project is in fact paternalistic or imperialistic, but rather to propose guidelines which would need to be applied to each particular instance.
- Full Text:
The economic valuation of cultural events in developing countries: combining market and non-market valuation techniques at the South African National Arts Festival
- Authors: Snowball, Jeanette Dalziel
- Date: 2006
- Subjects: Standard Bank National Arts Festival -- Economic aspects , Performing arts festivals -- Economic aspects -- South Africa -- Grahamstown , Arts -- South Africa -- Economic aspects , Finance -- South Africa , Arts -- South Africa -- Finance , Arts -- South Africa -- Political aspects , Finance, Public -- South Africa , South Africa -- Politics and government -- 1994-
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:969 , http://hdl.handle.net/10962/d1002703 , Standard Bank National Arts Festival -- Economic aspects , Performing arts festivals -- Economic aspects -- South Africa -- Grahamstown , Arts -- South Africa -- Economic aspects , Finance -- South Africa , Arts -- South Africa -- Finance , Arts -- South Africa -- Political aspects , Finance, Public -- South Africa , South Africa -- Politics and government -- 1994-
- Description: The arts in many countries, but particularly in developing ones, are coming under increasing financial pressure and finding it difficult to justify the increases in government funding needed to maintain and grow the cultural sector. The trend in cultural economics, as well as in other areas, appears to be towards including qualitative valuations, as well as the more traditional quantitative ones. This thesis argues that the value of cultural events should include long term historical qualitative analysis, financial or economic impact and a valuation of the positive externalities provided by cultural events and that any one of these should only be regarded as a partial analysis. Four methods of valuing the arts using the South African National Arts Festival (NAF) as an example are demonstrated. Firstly, a qualitative historical analysis of the role of the NAF in South Africa’s transformation process from Apartheid to the democratic New South Africa is examined, using theories of cultural capital as a theoretical basis. It is argued that the value of cultural events needs to take into account long-term influences especially in countries undergoing political and social transformation. The second valuation method applied is the traditional economic impact study. Four economic impact studies conducted on the NAF are discussed and methodologies compared. It is concluded that, despite the skepticism of many cultural economists, the method can provide a useful partial valuation and may also be used for effective lobbying for government support of the arts. Chapter four discusses willingness to pay studies conducted at the NAF in 2000 and 2003 (as well as a pilot study conducted at the Klein Karoo Nationale Kunstefees). It is found that lower income and education groups do benefit from the positive externalities provided by the Festival and that this is reflected in their willingness to pay to support it. It is also argued that such contingent valuation studies can provide a reasonably reliable valuation of Festival externalities, but that they may be partly capturing current or future expected financial gains as well. Finally, the relatively new choice experiment methodology (also called conjoint analysis) is demonstrated on visitors to the NAF. The great advantage of this method in valuing cultural events is that it provides part-worths of various Festival attributes for different demographic groups. This enables organizes to structure the programme in such a way as to attract previously excluded groups and to conduct a cost-benefit analysis for each part of the Festival.
- Full Text:
The establishment of normative data on Xhosa-speaking high school learners using the ImPACT 3.0 programme
- Authors: Salman-Godlo, Noluthando Cikizwa
- Date: 2006
- Subjects: Brain -- Concussion -- South Africa , Sports -- Psychological aspects -- South Africa , Sports injuries -- Psychological spects , Neuropsychological tests , ImPACT 3.0
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3048 , http://hdl.handle.net/10962/d1002557 , Brain -- Concussion -- South Africa , Sports -- Psychological aspects -- South Africa , Sports injuries -- Psychological spects , Neuropsychological tests , ImPACT 3.0
- Description: Concussion is a common form of brain injury, especially amongst sports players of all age groups. ImPACT is a valid and reliable measure of a variety of cognitive functions commonly affected by such injuries, which allows for objective return-to-play decision making (Iverson, Lovell, & Collins, 2003). However, studies show that the transfer of such tests from one ethnic group to another without appropriate standardization is highly problematic (Ardila, 1995). Thus, the relative absence of South African normative data for the ImPACT 3.0 programme is an issue for concern. Consequently, this study aimed to establish norms for semi-rural Xhosa-speaking schoolboys with an advantaged education (ages 14, 16 and 18) for the ImPACT 3.0 programme as administered in English. Administrative and linguistic difficulties that were experienced by individuals during completion of the battery were also identified. Finally, the study included a comparison of the percentile scores of this sample to the USA norms for boys of a similar age group. Subtests scores were generated for 70 schoolboys and the data were then subjected to statistical analysis. A significant difference between English proficiency of the Grade 8 and Grade 12 boys was found. This indicates the importance of including an English proficiency test with the ImPACT battery when assessing such populations. No other significant differences were found between these age group samples. Although this requires further investigation, the comparison of the USA and SA percentiles suggests the use of local norms for this population. South African boys in this study consistently scored lower than the USA sample. Finally, it is recommended that symptom selfreports should be verbally investigated with each boy after testing, given indications of comprehension problems. In closing, limitations and future possible studies are discussed.
- Full Text:
The evaluation of environmental learning support materials : a case study of the AAWARE teacher's guide
- Authors: Glover, Dawn
- Date: 2006
- Subjects: Environmental education -- South Africa -- Western Cape , Environmental education -- Curricula -- South Africa -- Western Cape , Teaching -- Aids and devices -- South Africa -- Western Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1945 , http://hdl.handle.net/10962/d1008064 , Environmental education -- South Africa -- Western Cape , Environmental education -- Curricula -- South Africa -- Western Cape , Teaching -- Aids and devices -- South Africa -- Western Cape
- Description: This evaluative case study investigates the use of a specific learning support materials (LSMs) package, Animal Awareness for World and Regional Education (AA WARE), in the natural sciences, intermediate phase. Schools with access to the resource were canvassed through questionnaires to assess overall use in relation to distribution via workshop versus hand delivery, class size, availability of alternate LSMs and lastly the level of exposure to the distributing organisation. Three case studies were undertaken at three different schools. Data was generated through observations and interviews with the teacher undertaking the lesson observed. The aim of the case studies was to gain greater insight into AAWARE in practice and the factors that facilitated the use of the resource by these teachers. The research indicates that while AAWARE has overcome some inhibitors of resource use, its potential within Outcomes-Based Education (OBE) and the Revised National Curriculum Statements (RNCS) has not been achieved so far, except in a few isolated cases. Factors enabling the use of the resource are its user-friendly design, availability in all three languages spoken by the majority of Western Cape learners and the integration with education policy. Workshops, although not necessary for the utilisation of AA WARE in part, could enhance the integrated nature of the resource and introduce teachers to the potential of using the resource as an entire unit as opposed to a collection of separate lesson plans. A relationship is seen between exposure to the distributing organisation, the personal interest in wildlife of the teacher and the use of AAWARE. Finally recommendations are provided to increase the use of AA WARE. It is suggested that the resource undergoes a more effective alignment to RNCS content (RNCS policy was not an issue) now that RNCS implementation is completed. Further workshops should be offered in the use of AA WARE. Lastly a long-term strategy should be developed to enthuse schools and teachers about the intentions, goals and appropriateness of the resource.
- Full Text:
The evaluation of Phenrica sp.2 (Coleoptera: Chrysomelidae: Alticinae), as a possible biological control agent for Madeira vine, Anredera cordifolia (Ten.) Steenis in South Africa
- Authors: Van der Westhuizen, Liamé
- Date: 2006
- Subjects: Weeds -- Biological control -- South Africa , Biological pest control agents -- South Africa , Invasive plants -- Biological control -- South Africa , Chrysomelidae , Beetles , Flea beetles , Anredera cordifolia -- Biological control
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5689 , http://hdl.handle.net/10962/d1005375 , Weeds -- Biological control -- South Africa , Biological pest control agents -- South Africa , Invasive plants -- Biological control -- South Africa , Chrysomelidae , Beetles , Flea beetles , Anredera cordifolia -- Biological control
- Description: Anredera cordifolia (Basellaceae), Madeira vine, is a perennial, semi- succulent climber native from Paraguay to southern Brazil and northern Argentina. It has a history of weediness and difficulty of control once established. In South Africa Madeira vine has a wide range and distribution with altitudes ranging from 10-1800m above sea level. Described as a transformer species, its sheer weight is capable of breaking branches off trees, causing the potential collapse of forest canopies. Chemical and mechanical control methods are expensive, labour intensive and may provide only temporary relief. A biological control programme was therefore initiated in 2003. Cf Phenrica sp. 2 (Coleoptera: Chrysomelidae: Alticinae), was field collected from A. cordifolia in Brazil, SSW of Cascavel in the Paraná Province during a survey in November 2003. Eggs are laid in groups of 16 with the average fertility rate being 89%. After going though three larval instars, the larvae pupate in the soil with the adults eclosing after a period of 17 days. The total developmental time for a generation from egg to egg ranges between 7-8 weeks. Biological traits that favour the flea beetle as a possible biological control agent include long-lived adults (up to 5 months) and multiple generations during the summer period. Both adults and larvae feed extensively on leaves and stems and although developmental rates will slow down during the winter period, no indication of a definite diapause was found under the prevailing laboratory conditions. After completing the larval no-choice trials with twenty-six plant species from 14 plant families Phenrica sp. 2 proved to be adequately host specific, as larval development was only supported by 3 Basellaceae species (including the control A. cordifolia) and one Portulacaceae species. All of these are introduced species in South Africa. The only indigenous Basella species could not be tested as it has a very marginal distribution, and because it’s inconspicuous nature, it is seldom seen or collected. Adult multi-choice trials were restricted to species that could sustain larval development to give some indication of the acceptability of these species for adult feeding and oviposition. Although adult feeding was initially concentrated on B. alba, the oviposition preference was clear-cut as females only oviposited on A. cordifolia. In order to quantify the impact of Phenrica sp. 2 on plant biomass and to assess the incidence and intensity of foliar damage, a pair of adults was confined to the host plant, for 2 generations, with different levels of larval densities. The results indicated that the host plant, due to both larval and adult feeding, suffered leaf losses of up to 55%. Anredera cordifolia was however still capable of enlarging the root mass despite suffering huge leaf losses. This would imply that A. cordifolia has an effective re-growth capacity and it will only be vulnerable to attack of the storage organs that enable re-growth, or to repeated attack of other plant parts through which reserves are exhausted. Unfortunately the period of exposure (24 days) was too short to prove that Phenrica sp. 2 impacts on the below ground dry mass, but should the plant be completely defoliated, as was observed in the field, the host plant would be forced to deplete stored resources. Phenrica sp.2 has shown to be very host specific and although A.cordifoia loses its leaves during the winter period in most provinces in South Africa, the adults are long-lived and should be able to survive the leafless periods. Further more the relatively short life cycle, high fecundity and 3 generations per year should theoretically insure a strong population build-up that would improve the chances of establishment in the field. All indications are that Phenrica sp. 2 is an agent well worth considering for the biological control of A. cordifolia.
- Full Text:
The extent to which review for unreasonableness is meaningfully incorporated in the promotion of Administrative Justice Act no. 3 of 2000
- Authors: Bednar, Jeannine
- Date: 2006
- Subjects: Administrative law Administrative law -- South Africa Judicial review of administrative acts -- South Africa Law reform -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3707 , http://hdl.handle.net/10962/d1006515
- Description: Prior to the current constitutional dispensation, the development of South African administrative law was restricted by the doctrine of Parliamentary Sovereignty. Even in that comparatively 'hostile' environment, review for unreasonableness developed as an aspect of judicial review, and was applied as a check on the exercise of administrative power in certain circumstances. The principle of proportionality as an aspect of review for unreasonableness also developed during this period. With the advent of the new Constitutional dispensation, the framework within which administrative law in South Africa operates became one governed by Constitutional Supremacy. The Rights to Just Administrative Action, including a right to reasonable administrative action, were entrenched in the Constitution. Review for unreasonableness is an important aspect of administrative law in the present Constitutional dispensation as the mechanism for protecting the Constitutional right to reasonable administrative action. Proportionality is an important principle underlying the Bill of Rights as a whole, and it is an important aspect of the right to reasonable administrative action, and of review for unreasonableness. In early 2000, the Promotion of Administrative Justice Act No. 3 of 2000 ("the PAJA"), was passed by Parliament in fulfillment of the Constitutional requirement to pass legislation to give effect to the constitutional rights to Just Administrative Action. This thesis examines whether or not review for unreasonableness, and proportionality as an aspect of review for unreasonableness, have been meaningfully incorporated in the PAJA, and if they have not been, what potential remedies there might be. This is done by examining the basis of judicial review both before and under the current constitutional dispensation; defining unreasonableness, and proportionality; examining the content of the right to administrative action which is "justifiable in relation to the reasons given" in section 24(d) of the Interim Constitution and the right to reasonable administrative action in terms of section 33(1) of the Final Constitution; examining the application of review for unreasonableness and proportionality by the Courts both before and under the current constitutional dispensation; examining the content of judicial review incorporated in the PAJA and the drafting history of section 6(2) of the PAJA which relates to review for unreasonableness; drawing conclusions regarding whether or not review for unreasonableness and proportionality were meaningfully incorporated in the PAJA; and finally making recommendations with regard to review for unreasonableness and proportionality in light of the provisions of the PAJA.
- Full Text:
The fisheries potential of Marcusenius pongolensis, Oreochromis mossambicus and Schilbe intermedius in Mnjoli dam, Swaziland
- Authors: Khumalo, Nokuthula
- Date: 2006
- Subjects: Mozambique tilapia , Marcusenius pongolensis , Schilbe intermedius , Fishes -- Swaziland , Fisheries -- Swaziland , Tilapia -- Swaziland
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5283 , http://hdl.handle.net/10962/d1005127 , Mozambique tilapia , Marcusenius pongolensis , Schilbe intermedius , Fishes -- Swaziland , Fisheries -- Swaziland , Tilapia -- Swaziland
- Description: This thesis investigates aspects of the diversity, abundance and biology of the fish species inhabiting Mnjoli Dam, an irrigation dam that is located in the rural lowveld region of Swaziland. Specific objectives for this thesis were: to determine the fish species present and select three principal species based on their abundance; to investigate the relative abundance and distribution of the three selected species; and to describe key population parameters, such as growth, maturity, reproductive seasonality and mortality. The three dominant species were selected on their fisheries potential. These were Marcusenius pongolensis, Oreochromis mossambicus and Schilbe intermedius. Marcusenius pongolensis was the most abundant species in terms of both catch per unit effort and mass. Catch rates were shown to vary according to habitat type. Age and growth parameters were obtained from sectioned otoliths. Marginal zone analysis showed that annulus formation occurred in winter for all three species. The maximum-recorded ages were 8, 6 and 8 for M. pongolensis, O. mossambicus and S. intermedius, respectively. Growth for the three species was best described by the three parameter von Bertalanffy growth model as Lt = 1.88.67(1- exp⁻¹·⁴⁸⁽t⁺°·⁶⁷⁾) mm FL for M. pongolensis; Lt = 226.83(1- exp⁻°·⁴⁽t⁺²·°²⁾) mm TL for O. mossambicus and Lt = 214.59(1- exp⁻°·⁶°⁽t⁺¹·²°⁾) mm FL for S. intermedius. Sexual maturity was estimated for male and female M. pongolensis at 134 mm FL and 119 mm FL, respectively. Oreochromis mossambicus matured at 239 mm TL and S. intermedius at 205 mm FL. Two spawning peaks for M. pongolensis and S. intermedius were observed, one at the onset of summer (November) and the second at the beginning of autumn (February-March). Oreochromis mossambicus also exhibited two spawning peaks, one in spring (September) and the second in autumn (February –March). Mean mortality rate (Z), estimated using catch curve analysis was 0.77 year⁻¹ for M. pongolensis, 0.49 year⁻¹ for O. mossambicus and 0.79 year⁻¹ for S. intermedius. Natural mortality was assumed to be equal to Z since there is no fishery activity at the dam. Size specific selectivity curves were developed for each species. Of all the mesh sizes used, the 44 mm mesh size net had the highest catch rates in terms of numbers for M. pongolensis and S. intermedius. The 75mm mesh caught the highest catch rates for O. mossambicus. . The 44mm and 75 mm meshes seem to be the most suitable mesh sizes for harvesting the candidate species. It is concluded that no commercial fishery should be established on the dam, yet a small subsistence fishery could be a possible option. Management options such as input controls, open and closed seasons and areas and minimum sizes are discussed.
- Full Text:
The forensic aesthetic in art
- Authors: Spargo, Natascha
- Date: 2006
- Subjects: Violence in art Psychic trauma -- Pictorial works Aesthetics Human figure in art Smith, Kathryn, 1975-
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2435 , http://hdl.handle.net/10962/d1004624
- Description: From Introduction: The 'forensic aesthetic' presents the viewer with traces and debris - the residue that haunts sites of transgression, violence and death. In his book Scene of the Crime, art critic and curator Ralph Rugoff (1997:62) defines the forensic aesthetic as follows: "Inextricably linked to an unseen history, this type of art embodies a fractured relationship to time. Like a piece of evidence, its present appearance is haunted by an indeterminate past, which we confront in the alienated form of fossilized and fragmented remnants." Through its play on seemingly insignificant detail&, clues and traces, the forensic aesthetic suggests that meaning is dispersed, fragmentary and uncertain. According to Rugoff (1997:17), the forensic aesthetic "aims to engage the viewer in a process of mental reconstruction". It compels the viewer to adopt a 'forensic gaze' : to sift through broken narratives and fragments of information, reading the artwork as one might read a sample of evidence. Rugoff (1997:62) argues that: "[S]uch art insists that 'content is something that can't be seen' ... it requires that the viewer arrive at an interpretation by examining traces and marks and reading them as clues. In addition, it is marked by a strong sense of aftermath. ... Taken as a whole, this art puts us in a position akin to that of [the] forensic anthropologist or scientist, forcing us to speculatively piece together histories that remain largely invisible to the eye." One might argue that some of the earliest known examples of the forensic aesthetic in art presented themselves in the Renaissance period in the form of the pseudo-forensic anatomical drawings of Leonardo da Vinci. In his Studies of the Hand (fig. 1), for example, Da Vinci methodically represents the underlying structures of the human hand in a series of drawings that are scattered intermittently across the page. The remainder of the page is covered with hand-written notations. In this work, the artist approaches the human body with a scientific, almost forensic, gaze. Here the body is presented in fragments, rather than as a whole. According to Rugoff (1997:86&88), the forensic aesthetic addresses the body "not as a coherent whole but as a site of prior actions ... as a dispersed territory of clues and traces". When read in terms of the mode of the forensic aesthetic, Da Vinci's Studies of the Hand may be said to look at the human body as forensic object. In this way, this work may be said to speak of the manner in which the forensic gaze operates in the context of the artwork. Throughout the following essay, I discuss the various ways in which the forensic aesthetic manifests itself in art. I have necessarily been selective in the artworks that I have chosen for discussion, as this topic is very broad indeed. In Chapter One, I explore the tradition of the forensic aesthetic in art by way of a select number of artworks. This chapter focuses on investigating the way in which these works, whether consciously or unconsciously, speak of associations between violence and representation through the mode of the forensic aesthetic. The contents of Chapter Two concentrate on the work of South African artist Kathryn Smith. Smith's work may be said to possess a forensic quality, in that it references forensic practices and techniques. Her work has not been the topic of a lengthy monograph, but it has been considered in various exhibition catalogues, reviews and articles. For example, an essay by Colin Richards entitled 'Dead Certainties' (2004) investigates the forensic quality of Smith's imagery in terms of its play on notions of the trace. Similarly, an article by Maureen de Jager, entitled 'Evidence and Artifice' (2004), examines the manner in which Smith's work transgresses the boundaries between 'forensics and fantasy'. In her book, Through the Looking Glass (2004), Brenda Schmahmann addresses Smith's Still Life series (figs. 9, 10, 11) in relation to the issue of self-representation, exploring the relationship between the 'self' and the body as 'other'. Lastly, a review by James Sey, which was published in Art/South Africa (2004), considers Smith's work in terms of its aesthetic appeal, which serves as a framing device for the uncomfortable subject matter that informs the bulk of her imagery. My reading of Kathryn Smith's work departs from and expands on the available literature in that it focuses on the manner in which her images comment self-critically on the act of representation. I have chosen to focus on Smith's work in particular, as it uses the mode of the forensic aesthetic to speak of the field of artistic practice - a motif that runs throughout my own body of work as well. Moreover, Smith's work, like my own work, may be said to engage with the forensic aesthetic in a South African context. In Chapter Two, I compare a number of Smith's works to the artworks discussed in Chapter One, and examine the manner in which they speak of the links between art and crime. Chapter Three concentrates on outlining the ways in which my own work reads off the conventions of forensic investigation. In this chapter I discuss the manner in which my work, by way of a forensic approach, draws parallels between the medium of photography and the mechanisms of trauma. I focus on works that have been included in my Master's exhibition, Vigil (2005). The following essay is a study in representations of violence in art. In the course of this essay, I contextualize the forensic aesthetic as a mode of representation, as well as address the manner in which the forensic aesthetic seems to allow for, even facilitate, self-conscious reflection on the practices of representation itself.
- Full Text:
The ichthyofauna in a small temporarily open/closed Eastern Cape estuary, South Africa
- Authors: Lukey, James Robert
- Date: 2006
- Subjects: Estuarine fishes -- South Africa -- Eastern Cape , Marine fishes -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fish populations -- South Africa -- Eastern Cape , Fishes -- Growth -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5287 , http://hdl.handle.net/10962/d1005131 , Estuarine fishes -- South Africa -- Eastern Cape , Marine fishes -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fish populations -- South Africa -- Eastern Cape , Fishes -- Growth -- South Africa -- Eastern Cape
- Description: The ichthyofaunal community structure, population dynamics and movement patterns in the small temporarily open/closed (TOCE) Grant’s Valley estuary, situated along the Eastern Cape coastline, were investigated over the period May 2004 to April 2005. Community structure in the littoral zone was assessed, while growth of selected ichthyofaunal species was investigated using the MULTIFAN model. Population size was assessed using mark recapture models and movement within the estuary using the Hilborn (1990) model. Total ichthyofaunal densities and biomass within the littoral zone ranged between 0.31 to 21.45 fish m⁻² and 0.20 to 4.67 g wwt m⁻², with the highest values typically recorded during the summer. Results of the study indicated that the ichthyofaunal community structure within the estuary was closely linked to the mouth phase and the establishment of a link to the marine environment via overtopping events. In the absence of any link to the sea, the ichthyofaunal community was numerically dominated by estuarine resident species, mainly Gilchristella aestuaria and to a lesser extent, by the river goby, Glossogobius callidus which collectively comprised ca. 88% of all fish sampled. The establishment of the link to the marine environment contributed to an increased contribution of marine breeding species (e.g. Rhabdosargus holubi, Myxus capensis and Atherina breviceps) to the total ichthyofaunal abundances. In contrast, total ichthyofaunal biomass was almost always dominated by marine breeding species by virtue of their larger sizes. Results of hierarchical cluster analyses did not identify any spatial patterns in the ichthyofaunal community within the littoral zone. Results of MULTIFAN analysis indicated estuarine resident fish species bred over an extended period with peaks occurring in the summer months. Conversely, marine breeding fish were shown to recruit into the estuary following overtopping and breaching events. Results of the mark-recapture experiment indicated a population of ca. 12 000 (11 219 – 13 311) individuals greater than 50mm SL. Marine-breeding species (R. holubi, Monodactylus falciformis, and two mullet species) numerically dominated the ichthyofauna, possibly as a result of their effective use of overtopping events. The two mullet species, M. capensis and Liza richardsonii, and the Cape stumpnose, R. holubi moved extensively throughout the estuary, while the remaining species exhibited restricted movement patterns possibly due to the preference for refuge and foraging areas associated with reed beds. The observed movement patterns of individual fish species appeared to be associated with both foraging behaviour and habitat selection.
- Full Text:
The impact of inbound logistics activities on the operational performance of the postal services organization in South Africa
- Authors: Tabeni, Mvelo
- Date: 2006
- Subjects: South African Post Office Postal service -- South Africa Business logistics Business logistics -- Cost effectiveness Delivery of goods -- Management Physical distribution of goods Customer services -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:797 , http://hdl.handle.net/10962/d1004577
- Description: Introduction and Relevant Details: This research investigates the impact of inbound logistics' activities on the operational performance of the business within the branches of the South African Post Office (SAPO) in the Eastern Cape Province. The study basically hypothesises a statistically significant positive correlation between inbound logistics' activities and the operational performance of the business with regards to revenue generation and operational costs in particular. A sample of 100 branch offices was randomly selected. A 50-item questionnaire was administered by mail to the branches to collect the data during September 2005, and statistical tests for correlation were conducted on at least five dependent variables; stock procurement costs, effects on revenue, number of stock variation occurrences, order variation occurrences and the stock holding effects. Results of Data Analysis: The results of 88 respondents (88%) showed the existence of the significant positive relationship between the inbound logistics activities and the operational performance of the business at the South African Post Office branches as proposed by the study. The Spearman Rank Correlation tests were above 0.7 for most of the tested variables, showing a strong relationship. The inbound logistics' activities were also found to be positively correlated to revenue generation as well as to the operational expenses of the business. Conclusion and Recommendations: The findings allowed the researcher to conclude also that whatever improvements are made to the inbound logistics will also impact on the operational performance of the business, while failures in the inbound logistics will do so negatively. Business endeavours to maximise revenue and minimise costs are directly affected by the inbound logistics' activities. The branches of the SAPO seemed to be dissatisfied with most of the services rendered by the Supply Distribution Centre (SOC) of the SAPO, and such services have negatively affected the achievement of revenue targets at the branches as well as the operational costs. Holistic approaches to developing positive perceptions in the branches together with improving service activities at the SOC are recommended. Collaborative initiatives between branches and the SOC, reviewing the lead-times and the establishment of proper structures to handle supply chain queries, enhanced by information system technology to provide accurate and up-to-date information to branches and related parties about stock order issues are required . Areas of further research highlighted include the inbound logistics' activities of the SOC and the effectiveness of company policies as a guide to Supply Chain Management (SCM).
- Full Text:
The investigation, development and characterisation of novel zirconium-based tanning agents
- Authors: Guthrie-Strachan, Jeffry James
- Date: 2006
- Subjects: Zirconium Tanning Leather
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4319 , http://hdl.handle.net/10962/d1004977
- Description: Various oxygen- and nitrogen-donor ligands were investigated as potential zirconium masking agents in zirconium tanning. α-Hydroxycarboxylic acid ligands were identified as effective zirconium(IV) chelators in acidic aqueous solution. Glycolic acid, lactic acid, mandelic acid, 4-hydroxymandelic acid, 4-chloromandelic acid and 4-bromomandelic acid complexes were synthesised, isolated and characterised using a range of analytical techniques. Linear Free Energy Relationships were examined to optimise the stability of the zirconium complexes. Hammett [sigma] plots and Yukawa-Tsuno modified σ plots of the mandelate ligand and zirconium complex series indicated that inductive effects dominate within the benzene ring, however, mesomeric effects are significant outside the ring. Zirconium 4-hydroxymandelate complex solutions were identified as the most effective tanning agents and achieved shrinkage temperatures of 80 and 97ºC for hide powder and goatskin, respectively. The zirconium and 4-hydroxymandelic acid interact synergistically to yield leather equivalent to combination tanned leather in one step. Tanning was performed similarly to vegetable tanning processes with a pickle pH of approximately 5 and fixation was achieved upon acidification. Pilot-scale tanning of goatskin produced white tanned leathers and crust leathers which were physically and aesthetically comparable to matched chromium tanned material.
- Full Text:
The poetry of N.H. Brettell : a critical edition
- Authors: Hacksley, Reginald Gregory
- Date: 2006
- Subjects: Brettell, N H -- Criticism and interpretation South African poetry (English) -- History and criticism
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2289 , http://hdl.handle.net/10962/d1008072
- Description: This thesis presents for the first time a critical reading edition of all known poems by N. H. Brettell. It makes no claim to being definitive, nor does it attempt to establish a final text. It represents merely the best thinking of the editor. Brettell printed and circulated his poetry primarily in hand-made illustrated volumes in a process reminiscent of the scribal publication of the seventeenth century. Only 137 of his 206 extant poems were commercially published during his lifetime. In this study all known printed versions of Brettell's poetry whether in privately printed or commercially published form were examined. All variant readings were recorded and are shown. Wherever possible the relationships between texts are also noted. The poems in this edition are ordered in each case according to the version in the latest datable privately produced collection. The commentary and critical introduction were compiled with the general reader in mind. No previous familiarity with southern African fauna and flora is assumed: animals, birds and insects are described and their scientific names supplied. Expressions current in ordinary British or South African English and present in non-specialist dictionaries are not glossed, but archaic and dialectal forms felt to require explication are briefly explained. So too are less familiar South African dialectal expressions which have been assimilated into the South African English lexicon. Intertextual, Christian and mythological references, both African and Western, are annotated in an attempt to make such references accessible to readers who may not share Brettell's cultural background. The intention is to close the changing distance between the text and the audience. An essay discussing the merits, potential and limitations of electronic scholarly editing is included as part of the textual introduction. A CD-Rom containing Brettell's watercolour illustrations in his privately produced collections and audio-clips of him reading his poetry accompanies this thesis.
- Full Text:
The politics in and around governance in the New Partnership for Africa's Development
- Authors: Roussel, Jean Thierry Kevin
- Date: 2006
- Subjects: New Partnership for Africa's Development , Sustainable development -- Africa , Economic development -- Africa , Africa -- Foreign economic relations , Africa -- Economic conditions , Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2827 , http://hdl.handle.net/10962/d1003037 , New Partnership for Africa's Development , Sustainable development -- Africa , Economic development -- Africa , Africa -- Foreign economic relations , Africa -- Economic conditions , Africa -- Politics and government
- Description: This study examines the prominence of the term governance and its use in multilateral organisations, in particular the New Partnership for African Development. It argues that the term governance is contentious and needs to be reviewed. This is in light of the elevation of governance as a requisite for development, which has come about through the development of NEPAD. This is primarily a study on the position of the state in multilateral regimes and how governance will affect the state and non-state actors. The politics in and around governance are therefore important in any assessment of African development as governance becomes a developmental necessity. The African Rennaisance and African Union have become ‘beacons of hope’ for Africa and these have been discussed here. We can see NEPAD as a historical development that fits into the African Renaissance. This has been a mechanism to ensure state survival and the states that drive NEPAD have played a significant role in providing legitimacy to Africa’s calls for development. This thesis attempts to explain the shift in developmental policy in that NEPAD has seemingly become the first African development strategy that has the support of the West. Through this thesis, we will examine the role that the Post Washington consensus has played in getting this phase of African development started. What becomes significant here is the way in which governance has been accepted as the gauge for support in development. This study therefore aims to offer a means by which to analyse governance in multilateral organisations. As the term is contentious, three paradigms on governance will be provided in order to refine governance in such a way that it can be applied in analysis. This thesis shows that governance can be refined into corporatist, prebendal and conciliar forms. The form of governance that NEPAD will take has implications for the type of reconfiguration of the state brought about by governance.
- Full Text:
The politics of transformation in South Africa: an evaluation of education policies and their implementation with particular reference to the Eastern Cape Province
- Authors: Rembe, Symphorosa Wilibald
- Date: 2006
- Subjects: Educational change -- South Africa -- Eastern Cape Education -- Political aspects -- South Africa -- Eastern Cape Education and state -- South Africa -- Eastern Cape Post-apartheid era -- South Africa South Africa -- Politics and government -- 1994-
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2826 , http://hdl.handle.net/10962/d1003036
- Description: The post-apartheid government of South Africa has committed itself to achieving fundamental transformation of the education system. The government has adopted policies and measures that aimed to bring about the goals of equity and redress, and to enhance democracy and participation of all groups in development and decision making processes at all levels. It is acknowledged that the democratic government has accomplished a lot in education within this short period and has made numerous strides in enhancing equity, redress and social justice; providing high quality education for all the people of South Africa; bringing about democratisation and development; and enhancing effectiveness and efficiency. However, despite these apparent achievements, this study shows that there have been a number of setbacks and contradictions in the policies which have affected the process of bringing about fundamental changes and transformation in the education sector. The setbacks and contradictions resulted from factors which have affected the type of policies developed to transform the education sector. They also affected the formulation and implementation of the policies, thereby limiting the achievements of the goals of transformation agenda in education. Hence, this study examined the politics of transformation and change in the education sector by examining the type of policies that have been put in place; their formulation, implementation and outcome. The main research questions are: • What kind or type of policies have been put in place to transform the education sector? • How and by whom were the policies formulated? • How are these policies being implemented and what have been the outcomes of the process? Transformation and in particular the policy process is beset with continuous debate, contestation and struggle for the success of ideas and interests which are pursued by individual actors, groups and policy networks through the institutions. During these different stages policies are modified, constituted and reconstituted. As a result, they give rise to intended and unintended outcomes which are likely to support or contradict the objectives of those policies. Hence, the process cannot be explained using only one approach or theory. Therefore, this study has been situated in ideas, group and network and institutional approaches or theories to examine the factors that have affected education policies, their formulation and implementation and the overall transformation of education in South Africa. It contends that policy change and variation result from interaction of ideas and interests within patterns of group and policy networks and preset institutions. The study adopts qualitative interpretive methodology in order to question, understand and explain institutions; interests groups and ideas; socio economic and power relations involved in the process. It also appraises the framework for action. In addition to conducting literature review, unstructured interviews were held with officials from provincial and national Departments of Education, members of national and provincial legislatures, principals, teachers, members of school governing bodies, learners, Non-governmental organisations, Community based organisations, Faith based organisations, teachers’ and workers’ unions. Observations were made during meetings of school governing bodies. The study draws reference from the Eastern Cape Province between 1994 and 2002 and looks at the school level (Basic and Further Education levels). Reference is also made to selective policy instruments namely, the South African Schools Act (SASA) (1996), Curriculum 2005 and Norms and Standards for School Funding (1999). Overall, the findings of the study have shown that various factors have led to setbacks and contradictions in the policies that were adopted in education. They have also affected the formulation and implementation of the policies, hence exerting certain limitations on the achievements of the goals of transformation in education. The factors identified in the findings are the outcome of the negotiated settlement and subsequent changes made by the apartheid government in education before the 1994 elections; constraints and unequal participation of different groups in education policy development in various established structures and avenues; drawbacks in the implementation of education policies by decentralised structures and agents at various levels. This was exacerbated by lack of capacity, lack of adequate resources, lack of commitment and will among some of the civil servants coupled with corruption and mismanagement. The legacy of apartheid and the homeland governments, together with existing backlogs added another layer. Consequently, there were challenges in the economic policy which led to inadequate funding for education. The findings of this study show that competing ideas and interests advanced by groups and networks have impact on decision making, policy content and implementation. Therefore, some policies will reflect and maintain the interests of those individual actors, groups and policy networks that exerted most influence. The findings also reveal that institutional norms and rules, inadequate resources, lack of capacity and skilled human resources and economic environment, constrain decision making, policy content and implementation.
- Full Text:
The population structure of two estuarine fish species, atherina breviceps (Pisces: Atherinidae) and gilchristella aestuaria (Pisces: Clupeidae), along the Southern African coastline
- Authors: Norton, Olivia Bridget
- Date: 2006
- Subjects: Estuarine fishes -- South Africa , Estuarine ecology -- South Africa , Clupeidae -- South Africa , Silversides -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5745 , http://hdl.handle.net/10962/d1005431 , Estuarine fishes -- South Africa , Estuarine ecology -- South Africa , Clupeidae -- South Africa , Silversides -- South Africa
- Description: Phylogeographic patterns of coastal organisms with different life histories and breeding strategies may reveal patterns not consistent with the current delineation of the biogeographic provinces around South Africa. The subdivision of the South African coastline into these three main climatological or biogeographic regions: namely the cool temperate west coast, the warm temperate south coast and the subtropical east coast, is based on average seawater temperatures and hydrological conditions. Genealogies of two estuarine fish species Atherina breviceps, a marine breeder, and Gilchristella aestuaria, an estuarine spawner, were reconstructed using mitochondrial DNA (mtDNA) control region sequences. The study comprised two components, an assessment of a small dataset of both fish species to compare their population structure along the South African coastline and a more comprehensive investigation of the phylogeography of G. aestuaria collected from 21 estuaries around the coast. The comparative study of A. breviceps and G. aestuaria indicate different population distribution patterns along the South African coastline. Results of the A. breviceps analysis demonstrate substantial gene flow due to the random mixing of alleles, while the comparative G. aestuaria dataset indicates a more structured population and considerably less gene flow. The G. aestuaria population demonstrates geographic separation into four groups, namely the west coast (Great Berg), Bot (south coast), Seekoei (south coast) and east coast (Bushmans, Kasouga and Cefane). Results from the larger G. aestuaria dataset indicate that the phylogeographic patterns observed during this study do not conform to existing biogeographic boundaries along the southern African coastline. The delineation identified during this study between the warm temperate and subtropical regions is further south than originally perceived and this southward extension can be ascribed to the prevailing hydrology. The life history patterns and ecology of these two estuarine fish species appears key to understanding their population structure. These factors interact with environmental characteristics such as physical oceanography and the distribution of estuaries (along the coastline) to explain the observed distribution patterns and population structure of A. breviceps and G. aestuaria.
- Full Text:
The power of hegemonic theory in Southern Africa: why Lesotho cannot develop an independent foreign policy
- Authors: Mahao, Lehloenya
- Date: 2006
- Subjects: Hegemony -- South Africa , Lesotho -- Politics and government , Lesotho -- Foreign relations -- South Africa , South Africa -- Foreign relations -- Lesotho
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2799 , http://hdl.handle.net/10962/d1003009 , Hegemony -- South Africa , Lesotho -- Politics and government , Lesotho -- Foreign relations -- South Africa , South Africa -- Foreign relations -- Lesotho
- Description: This thesis critiques hegemonic theory – especially the impact of a hegemonic state on the ability of small states to develop an independent foreign policy. The research uses Lesotho as a case study of a subordinate state in relation to the Republic of South Africa (RSA) as a hegemonic state. It draws on the history of Lesotho’s quest for sovereignty and argues that this sovereignty is constantly eroded to the advantage of its hegemonic neighbour. This constrains Lesotho’s ability to develop an independent foreign policy.
- Full Text:
The puzzle of domination in society : seeking solutions in the African context
- Authors: Madonko, Thokozile
- Date: 2006
- Subjects: Rosen, Michael. On voluntary servitude , Fanon, Frantz, 1925-1961 , Fanon, Frantz, 1925-1961 -- Political and social views , Biko, Steve, 1946-1977 , Ideology , Black people -- Race identity , Ideology -- Psychological aspects , Ideology -- Sociological aspects , Power (Social sciences) , Consciousness , Racism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2855 , http://hdl.handle.net/10962/d1007260 , Rosen, Michael. On voluntary servitude , Fanon, Frantz, 1925-1961 , Fanon, Frantz, 1925-1961 -- Political and social views , Biko, Steve, 1946-1977 , Ideology , Black people -- Race identity , Ideology -- Psychological aspects , Ideology -- Sociological aspects , Power (Social sciences) , Consciousness , Racism
- Description: The presence of human destitution, impoverishment and degradation in the midst of plenty has puzzled social thinkers for millennia. One of the oldest and grandest of theories: the theory of ideology attempts to provide an answer to the puzzle of domination in society. Michael Rosen, in his book On Voluntary Servitude (1996), argues that the solution provided by the theory of ideology is problematic. Furthermore, on the basis of his critique, Rosen argues that we should abandon the theory of ideology and consider alternatives to it. Even though many contemporary academics have turned away from the theory of ideology, because they view it as an imprisoning meta-theory, this study explores the possibility of there being a meta-theory that could help us to make sense of the world. Through an examination of Rosen's critique this thesis shows that Rosen is too quick in his dismissal of the theory of ideology because he fails to consider that a revised functionalist theory of ideology can be expanded to account for the mechanism(s) that ensure that, over time, the society in question acquires ideological consciousness to further its welfare. This thesis shows that Rosen is correct in his criticism of the theory of ideology's explanation of domination because the content, history and social effects of ideological consciousness cannot be fully explained in terms of their role in promoting or stabilising relations of domination. In light of Rosen's criticism the thesis shows that if one provides both an explanation of the psychological motivations of individuals and of the nature of the oppressive society in which they find themselves then what I call an integrated theory of ideology can be developed. In order to illustrate the importance of an integrated theory of ideology the study moves away from high-level theoretical abstraction to concrete social analyses, focusing on the work of Frantz Fanon and Steve Biko and their explanations of domination. The reason this study focuses on their work is because in their role as social scientists, Fanon and Biko provided a powerful critique of colonial, post-colonial and neo-colonial society. It will be argued that Fanon and Biko were able to provide a lasting critique of colonial reality because they offered their critique within the framework of such an integrated theory. Consequently, this study argues that, as Fanon and Biko's work illustrate, an integrated theory of ideology qua critical theory ought not to be abandoned because it is crucial for understanding and resisting forms of oppression that exist in the world today.
- Full Text:
The regulation of tax practitioners in South Africa: a proposed model
- Authors: Woodbridge, Taryn
- Date: 2006
- Subjects: Income tax -- Law and legislation -- South Africa , Taxation -- Law and legislation -- South Africa , South African Revenue Service
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:891 , http://hdl.handle.net/10962/d1003128 , Income tax -- Law and legislation -- South Africa , Taxation -- Law and legislation -- South Africa , South African Revenue Service
- Description: Tax practitioners in South Africa have been operating in an unregulated tax industry. This has allowed certain tax practitioners to fail in their duties to their clients, as many do not have to abide by any code of conduct or ethical principles, to the detriment of the public. Other than the provisions in the Income Tax Act, 58 of 1962, there has been no regulation. As a result of losses suffered by taxpayers either through the incompetence, ignorance or negligence of a tax practitioner, as substantiated by case law, and increased costs borne by the South African Revenue Services due to unnecessary queries and tax disputes, the Minister of Finance, Trevor Manuel, introduced the concept of tax industry regulation in his Budget Speech in 2002. This resulted in the introduction of section 67 A into the Income Tax Act, providing for a registration process for tax practitioners. All practising tax practitioners were required to register with the Commissioner for the South African Revenue Services by 30 June 2005. In addition, a discussion paper was issued in 2002 setting out the proposal of the Revenue Services to regulate the tax industry through the formation of an Association of Tax Practitioners. This proposal includes various contentious issues and casts significant doubt on whether the proposed model is the most suitable. The goal of the research was therefore to evaluate the current status of tax advisory services in order to demonstrate the need for regulation and to compare the proposed SARS model with two established regulatory authorities: the Estate Agency Affairs Board and the Australian Tax Agents Board. A conceptual model for regulation was developed in order to test all the models against a simple regulatory framework to determine whether each was aligned to certain best practices proposed in this framework. The research methodology was qualitative in nature, involving the critical interpretation of documentary data and data generated during a public discussion forum of tax practitioners. It was concluded that the SARS proposal is too prescriptive and, at the same time, too broad in its scope. In order to address the key objective, identified as protection of the taxpaying public, a simplified regulation procedure was recommended, which would adhere to the proposed regulatory framework. , KMBT_363
- Full Text: