A critical analysis of the screen adaptation of Saule's Unyana womntu
- Authors: Mbatsha,Thembisa
- Date: 2012-12
- Subjects: Motion picture authorship , Literature -- Adaptations
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/23078 , vital:55400
- Description: This research will concentrate on various aspects of the screen adaptation of “Unyana womntu” (Saule, 1989). This study comprises of six chapters. In Chapter 1 of this study, the research aims and objectives are formulated. The research methods that are to be followed will involve a thorough reading of the written text, as well as a comprehensive repetitive viewing of all the episodes of the screen version. In the final part of Chapter 1, background information is provided on the personal life of the author as well as on his contributions to the African literary tradition. Background information on the production of the screen version is also provided. In the Chapter 2, the theoretical aspects of the phenomenon of literary adaptation are discussed. This discussion provides a framework for the analysis of the adaptation of “Unyana womntu” (Saule, 1989) in the remaining chapters of this study. The aim of this chapter is to identify and discuss the most important principles which come into play when the written text is adapted into a screen production. Since the screen production belongs to the genre of the performing arts, this chapter is introduced with a discussion on the performing arts and on the drama, in particular. The section will be concluded with a discussion on the different sub-types of the drama which can be found, including the screen production. The main emphasis is on an analysis of the basic features and principles of the drama in screen format. Since the screen play Unyana Womntu (1998) is based upon a novel by the same title, the literary features of the novel are to be discussed here as well. The specific features of the Xhosa novel will also receive attention. In Chapter 3, the adaptation of the background of the novel “Unyana womntu” (Saule, 1989) into the screen production is critically evaluated. Aspects such as the adaptation of the macro-features as well as the micro-features of the background are identified and critically analysed Chapter 4 deals with the adaptation of the character element. This discussion takes place within a particular theoretical framework which defines the essential elements of characterization within the novel and within the drama respectively. It also deals with the manner in which each of these elements is subjected to the process of adaptation. The aim of Chapter 5 is to analyse the adaptation of the plot of “Unyana womntu” (Saule, 1989) from a written text into a screen production. This analysis is based upon a well-constructed theoretical framework that addresses the various aspects of the plot, as found within narrative texts. Chapter 6 contains a general conclusion which will finally present the observations and findings drawn from the entire study , Thesis (MA) -- Faculty of Social Science and Humanities, 2012
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- Date Issued: 2012-12
Development & evaluation of modified lignocellulose-clinoptilolite composites for water treatment
- Authors: Vala, Mavula Kikwe Remy
- Date: 2012-12
- Subjects: Lignocellulose , Lignocellulose -- Biotechnology
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/24521 , vital:63051
- Description: Municipalities, mining, textile and many other industries release wastewater into water bodies. Thus, the entire ecosystem (biota and abiota) including drinking water is affected by polluted effluents. The growing environmental concern over water pollution (due to inorganic and persistent organic compounds) attracts a significant amount of research in the removal of pollutants from water. In this study, lignocellulose and clinoptilolite were modified for the preparation of composites, with high adsorption properties, suitable for the removal of pollutants. Grass (Kikuyu grass) material was first treated with boiling water in order to remove soluble compounds and then with sulfuric acid in order to free functional groups within lignocellulose. The lignocellulose obtained was then chemically modified with three different siloxanes (3-aminopropyl-terminated poly (di)methylsiloxanes) of different molecular weights. For clinoptilolite, impurities were removed by reflux in hydrochloric acid before chemical modification with siloxanes. Grafting of siloxanes onto lignocellulose and clinoptilolite as well as the preparation of composites were successfully achieved by means of dibutyltin dilaurate (catalyst) after reflux under nitrogen. The modified materials were characterized by FT-IR, XRD, SEM and TGA and results confirmed successful modification of the materials. Solid state 29Si and 13C NMR were used to investigate the nature of the composite prepared with siloxane NH40D (CNH40D). The investigation revealed a possible bond between the modified lignocellulose and the modified clinoptilolite in the composite. The sorptive and/or ion exchange properties of the materials prepared for the removal of pollutants from water were then investigated. Phenol red, used motor (engine) oil and cyanide were used (with regard to textile, oil spill and gold mining effluents respectively) to simulate water pollution in the laboratory. It was found that adsorption properties of lignocellulose were significantly increased after sulfuric acid treatment, suggesting the availability of lignocellulose functional groups as adsorption sites. When further modified with siloxanes, lignocellulose showed less efficiency in adsorbing phenol red. The general mechanism of phenol red uptake onto lignocellulose and clinoptilolite modified with siloxane or composites was: rapid initial adsorption, slow uptake, small rate increase and then equilibrium. The mechanism of phenol red uptake could be well represented by the pseudo second-order kinetic model with equilibrium being reached after a period of time, ranging between 1-5 hours. The linear Langmuir model was the best model for describing adsorption of phenol red onto lignocellulose modified with siloxanes and composites while the Freundlich model appeared to be best for clinoptilolite modified with siloxanes. The general mechanism of used motor oil uptake onto lignocellulose and clinoptilolite modified with siloxane or composites was: rapid uptake, equilibrium and the process occurs over a short period (10 min). The pseudo second-order kinetic model appeared to be the best representation of this adsorption. The linear Langmuir isotherms are the best fitted model for used motor oil uptake onto the adsorbents prepared. Adsorption of cyanide occurred very quickly (10 to 30 min). For lignocellulose and clinoptilolite modified with siloxanes, desorption occurred soon after adsorption and thus no kinetic model nor isotherms of adsorption were deduced. However, adsorption of cyanide onto composites could be represented by the pseudo second-order kinetic model. Nanofibres were fabricated by electrospinning of the modified lignocellulose and composites by blending them with PAN in a solvent mixture of DMF-DMSO. Nanofiltration was achieved by packing the nanofibres prepared into a pipette and filtering polluted water. Nanofiltration was assessed by measurement of the turbidity of water which dropped from 63 NTU for polluted water to 3.06 NTU for filtered water. , Thesis (PhD) -- Faculty of Science and Agriculture, 2012
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- Date Issued: 2012-12
Examining learners' and teachers' perceptions of the relationship between school infrastructure and learners' performance in Fort Beaufort Education District, Eastern Cape Province, South Africa
- Authors: Ajibade, Benedicta Aremevbemi
- Date: 2012-12
- Subjects: School facilities , Education and state -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24695 , vital:63526
- Description: This study examined learners’ and teachers’ perceptions of the relationship between school infrastructure and learners’ performance in Fort Beaufort Education District, Eastern Cape. The study arose from a concern that, despite South African Government’s commitment to funding the renovation of some old and dilapidated school buildings and constructing new ones so that there would be an improvement in both teaching and learning in affected secondary schools. Regrettably, most school buildings remain in deplorable conditions. There has been poor learner performance at all levels of the secondary education system in some rural areas of the Eastern Cape Province. Learners’ performance in the Province’s high schools has been described as the worst in the country. From the literature, it appears that no thorough and conclusive studies looking into the issues relating to school buildings and learners’ performance as perceived by learners and teachers in South Africa have been conducted. Hence, the researcher was motivated to examine the relationship between school buildings and learners’ performance. The study was placed within the post-positivism paradigm and used a mixed method research design that incorporated concurrent procedures in the collection, analysis and interpretation of the data. Likert-scale questionnaires were used to collect quantitative data while qualitative data were collected through interviews and observations. A total of 240 learners completed the questionnaire. The researcher conducted 48 brief interviews (36 with teachers and 12 with school principals) from 12 selected secondary schools. Furthermore, the researcher made observations to assess the state of the buildings. At school level, the study revealed that most of the school buildings were in deplorable condition. The teaching and learning environment also compounded the problem of poor learners’ performance. Learners’ motivation/morale, health and safety were not guaranteed in most of the schools, and teachers’ expressed difficulty in performing their job effectively. Large classes, lack of teaching and learning resources, and limited infrastructure were some of the factors hindering teaching and learning at school level. Results obtained from the study showed that the principals and teachers perceived strong links between the condition of their school buildings and learners’ performance. About half of the learners perceived some link between the condition of their schools and their academic performance. The study observed that the majority of school buildings were old and in very bad conditions with few under renovation from the Correctional service department. The study also showed that most schools lack recreational facilities, do not have electricity, laboratories, library and water. Most of the educators are unhappy about their work environment and are not motivated. The study has put forth recommendations for educational planners and for policies regarding the funding norms. Furthermore, based on the findings of the study, there is need for collaborative effort among educational stakeholders to ensure adequate and appropriated delivery of school infrastructure specifically school building that will translate into improved teaching practice at school level and better learners’ performance. , Thesis (MEd) -- Faculty of Education, 2012
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- Date Issued: 2012-12
Integrating legacy applications into service oriented architecture middleware
- Authors: Makamba, Makaziwe https://orcid.org/0000-0001-6998-4480
- Date: 2012-12
- Subjects: Service-oriented architecture (Computer science) , Computer architecture
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24294 , vital:62599
- Description: Information and Communication Technology (ICT) is a dynamic approach that is widely recognized as an innovative and powerful tool for socio-economic development, it is a key catalyst for the emergence of knowledge economy. ICT have been used to develop applications, promote transparency and efficiency in multiple services such e-Learning, e-Government, e-Health and e-Judiciary especially for Marginalized Rural Areas (MRAs). The ICT approach is designed to bridge the digital divide. This approach has been widely deployed in many programs and it has led to the development of a new field which is Information and Communication Technology for Development (ICT4D). Within the context of ICT4D there are arrays of e-services that have been deployed to improve the impoverished communities. Some of these applications have failed to bring the changes that were designed to bring in the community due to the use of old architectures. There is therefore a need to develop a system that will integrate legacy applications into contemporary architectures. To solve the problem of the legacy applications we have developed TeleWeaver Service Oriented Architecture (SOA) middleware into which we integrate an e-Commerce and e-Learning applications into SOA middleware. For this integration system there are specific technologies that were used to integrate legacy applications into SOA middleware: RESTful web services using the slim API, SOAP via Nu-SOAP technologies were used to integrate these legacy applications. Specific methodologies were used to achieve the objectives of this research. The literature review, brainstorming, interviews and development of the system are some of the methods that were used to achieve the objectives of this study. The research methodology is mainly through experiments and to study TeleWeaver SOA middleware architecture. Interviews were conducted to analyze and understand the community needs, since the application discussed in this thesis is tested and implemented for a rural community. The community is called Dwesa, and falls under the ICT project within the Siyakhula Living Lab (SLL). A basic prototyping and Unified Modeling Language (UML) was created to design the system. This thesis presents the design and implementation of a system that integrates legacy applications into an SOA middleware that brings flexibility and effectiveness to these ICT e-services. The research focuses on integrating legacy applications into Service Oriented Architecture (SOA) middleware. It seeks to bring flexibility to e-services that are developed for MRAs. The use of SOA architecture that supports re-usability and interoperability of application provides effectiveness to the e-services. The novelty of the system is in its flexibility, usability and sustainability. SOA is an approach that provides a separation between the interface of the service and its underlying implementation. One of the achievements of the integration project is its ability to connect to SOA middleware. This increases the effectiveness of these e-services. The usability and performance evaluations are conducted to test and evaluate the system within the SLL on the TeleWeaver platform. , Thesis (MSc) -- Faculty of Science and Agriculture, 2012
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- Date Issued: 2012-12
Preparation and characterisation of nanocomposite biodegradable films of hake fish gelatine and Na-montmorillonite
- Authors: Mutize, Innocent
- Date: 2012-12
- Subjects: Nanocomposites (Materials) , Food -- Packaging
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24261 , vital:62595
- Description: Hake fish (Merluccius paradoxus) based films were prepared using gelatine extracted from hake fish bones and skins. They were characterized using FTIR, TGA and XRD. Polyethylene glycol and distilled water were used as plasticizer and solvent respectively. Montmorillonite clay was also added to the film matrix at different concentration (1-13percent gelatine weight) to improve the films‟ functional properties. Fourier Transform Infrared (FTIR), Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) and Ultra Violet-Visible (UV-Vis) spectroscopy analysis were used to characterise gelatine extracted from hake fish bones and skins. The extraction time and temperature were varied between 30 mins to 120 mins and 45°C to 75°C respectively. The yields of the gelatines extracted at the stated conditions were calculated from the hydroxyproline content giving values of 30 to 39percent, 43 to 55percent and 50 to 57percent for extraction at 45°C, 60°C and 75°C respectively. The effect of polyethylene glycol content on the mechanical and barrier properties of hake fish gelatine films was also investigated. The addition of polyethylene glycol to the film solution increased the water vapour permeability from 0.0321 ± 0.0011 ng.m/m2.s.Pa to 0.0993 ± 0.0007 ng.m/m2.s.Pa between 5 and 35percent polyethylene glycol content and decreased tensile strength from 41.92 ± 2.17 MPa to 29.93 ± 0.17 MPa. Sodium treated Montmorillonite was incorporated in the hake fish gelatine film solution in order to assess the effect of Montmorillonite clay on the film mechanical, barrier and thermal properties. Hake fish gelatine-montmorillonite composite films were successfully prepared and characterized. X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) analysis indicated that the Montmorillonite clay in the film matrices was in an exfoliated state. Water vapour permeability was reduced from 0.0312 ± 0.0016 ng.m/m2.s.Pa to 0.0081 ± 0.0001ng.m/m2.s.Pa and tensile strength improved from 29.93 ± 0.17MPa to 76.78 ± 1.13 MPa. , Thesis (MSc) -- Faculty of Science and Agriculture, 2012
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- Date Issued: 2012-12
The implementation of HIV and AIDS prevention programmes in three Universities in Zimbabwe
- Authors: Muzenda, Denias https://orcid.org/0000-0002-6552-7319
- Date: 2012-12
- Subjects: Universities and colleges -- Health promotion services , AIDS (Disease) -- Prevention
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/25022 , vital:63891
- Description: Given the nature and devastating effects of HIV and AIDS and its impact on society, the universities in Zimbabwe have affirmed the need to define their institutional policy aimed at managing and mitigating the effects of HIV and AIDS. In this regard they have also put in place programmes to address the epidemic. Among the programmes are HIV and AIDS prevention programmes which are being implemented. However, there have been concerns that despite the fact that the programmes are being implemented as planned they have not met their objectives as HIV and AIDS infections have not decreased as expected. Hence this study assesses the implementation of HIV and AIDS prevention programmes in three universities in Zimbabwe. To achieve these objectives, the researcher opted for the mixed method methodology which is embedded in the post-positivist research paradigm. Post-positivist research paradigm attempts to increase our understanding of the way things are and that objectivity is an ideal that can never be achieved, and research is conducted with greater awareness of subjectivity. The researcher had to opt for questionnaires, interviews, document analysis and observations as data collecting instruments. From the Data presented the study found that universities lack adequately professionally qualified HIV and AIDS lecturers. Results on capacity of implementers in the study revealed that an insignificant number of lecturers have the capacity while the majority significant number lacked the capacity to implement the programmes. HIV and AIDS prevention is being implemented by unqualified lecturers who lack training and prerequisite skills for the programme. Furthermore, the study found that Lecturers do not get the necessary professional and institutional support to implement successfully HIV and AIDS programmes in universities. HIV and AIDS Coordinators and NGOs expressed concern over the inadequacy of learning and teaching support material. Funding and lack of resources such as specialist rooms and learning materials are a major impediment to successful implementation of HIV and AIDS. Implementation of HIV and AIDS programmes suffers from inadequate supervision by the relevant stakeholders due to unavailability of transport and financial cost. It also emerged that Human resource is also a major problem since there is a great staff turnover as specialist lecturers leave the system for better paid opportunities in the private sector. Most university lecturer respondents cited staff turnover as long-established and skilled lecturers look for greener pastures within and outside the country. The dominant methods used to implement HIV and AIDS programmes do not give enough room for group work discussions to effect behaviour change in students. Rather, more emphasis is on factual knowledge for assignments and examination purposes. On monitoring and evaluation of HIV and AIDS programmes, the study found that lecturers and students are unaware of their programmes progress bench marks. Universities have not been carrying out internal audits over the past years. This implies that the universities are divorced from Ministry of Higher Education Policy on monitoring and evaluation. Also, less people are involved in the monitoring process of HIV and AIDS programmes. The study found from the universities records that an HIV and AIDS Policy document exists at each university. However, the implementation of HIV and AIDS prevention programmes seemed to have a number of controversies and challenges. The study made the following recommendations against each major finding: Within the organisation, university works continually to equip staff with the knowledge, skills and tools required to analyse programme, implement and monitor interventions for HIV prevention. Capacity to support innovations includes aspects which hinder or support the implementation of new practices and ideas in the new curriculum. Universities should have trained HIV and AIDS Peer educators. For a lecturer to be considered as professionally qualified personnel in universities, the Ministry of Higher and Tertiary Education should stipulate possession of a Master‟s degree or a Doctorate. The researcher provided a section on contribution of the study to new knowledge whereby the researcher proposed an alternative model for HIV and AIDS implementation for universities in Zimbabwe. This model was derived after a thorough analysis of the findings from the study as well as an extensive literature review on the subject. Areas for further research have been suggested in this study. , Thesis (PhD) -- Faculty of Education, 2012
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- Date Issued: 2012-12