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An examination of how organisational policy and news professionalism are negotiated in a newsroom: a case study of Zimbabwe's Financial gazette

  • Authors: Gandari, Jonathan
  • Date: 2010
  • Subjects: Financial gazette Journalism -- Zimbabwe Journalism -- Political aspects -- Zimbabwe Journalistic ethics Journalists -- Zimbabwe Newspapers -- Zimbabwe Mass media -- Political aspects -- Zimbabwe Mass media -- Law and legislation -- Zimbabwe
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3430 , http://hdl.handle.net/10962/d1002884
  • Description: The construction of journalistic professionalism in Zimbabwe has stirred debate among scholars. Critics have argued that professionalism has been compromised by the stifling media laws in Zimbabwe as well as the extra legal measures the state has enforced to control the press. Some have also argued that a new kind of journalism must be emerging in the Zimbabwean newsroom as journalism try to cope with the political and economic pressures bedeviling the country. Much of this criticism however, has not been based on close interrogation of professionalism from the perspective of the journalists in any particular newsroom. It is against this background that this study examines the constructions of professionalism at the Financial Gazette. In particular it explores the meaning of professionalism through interrogating the journalistic practices the journalists consider during the process of news production in the context of overwhelming state power. In undertaking this examination, the study draws primarily on qualitative research methods, particularly observation and multi-layered individual in-depth interviews. As the study demonstrates, the interrogation of professionalism from the perspective of newsroom practices uncovers the complex manner in which professionalism is negotiated in the Gazette’s newsroom located in a country undergoing transition in Democracy. The study establishes that when measured against normative canons of journalistic professionalism the Gazette is deviating from such tenets as public service and watchdog journalism. As the study indicates, perhaps unbeknown to the respondents, the ruling ZANU PF party hegemony is reproduced at the Gazette through choice of news values such as sovereignty and patriotism all euphemisms for ruling party‘s slogans.
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An exploration of school-community links in enabling environmental learning through food growing : a cross-cultural study

An in-service development programme for potential information services staff in the Rhodes Library

  • Authors: Shepherd, Eileen
  • Date: 2010
  • Language: English
  • Type: Article
  • Identifier: vital:6986 , http://hdl.handle.net/10962/d1011602
  • Description: This paper discusses the need for continuing professional development for librarians in academic libraries in general and at Rhodes University Library, South Africa in particular. It describes the planning, design, implementation and evaluation of a staff-development and training pilot programme for professional librarians at Rhodes Library. A group of 15 librarians, drawn from the library staff complement, participated in an 8-session training course developed by Information Services librarians. The course, which covered basic information-finding skills using a variety of research databases and offered an introduction to concepts in 21st century academic librarianship, was presented using course management software in a face-to-face environment and required homework exercises and the completion of a 2-hour final test. The results of the project demonstrated the urgent need for such development programmes for professional library staff. 80% of the participants completed the course. The final test results indicated below average database search skills and an inability to think laterally. An unexpected finding was a lack of IT competencies. Important lessons were learned with regard to course-construction, content and timing.
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An investigation into parental involvements in the learning of mathematics : a case study involving grade 5 San learners and their parents

  • Authors: Hamukwaya, Shemunyenge Taleiko
  • Date: 2010
  • Subjects: Mathematics (Elementary) -- Study and teaching -- Namibia , Mathematics (Elementary) -- Study and teaching -- Activity programs -- Namibia , Mathematics (Elementary) -- Study and teaching -- Parent participation -- Namibia , Parent-teacher relationships -- Namibia , Marginality, Social -- Namibia , Literacy -- Social aspects -- Namibia , Khoisan (African people) -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1598 , http://hdl.handle.net/10962/d1003480 , Mathematics (Elementary) -- Study and teaching -- Namibia , Mathematics (Elementary) -- Study and teaching -- Activity programs -- Namibia , Mathematics (Elementary) -- Study and teaching -- Parent participation -- Namibia , Parent-teacher relationships -- Namibia , Marginality, Social -- Namibia , Literacy -- Social aspects -- Namibia , Khoisan (African people) -- Namibia
  • Description: The purpose of this study was to investigate and document parental involvement in a San community in Namibia over a period of two months. The emphasis was to investigate whether San parents in the Omusati region were involved in the learning of mathematics of their children. The learner participants were selected according to those who were open to sharing their ideas. An interpretive approach was used to collect and analyse data. The collected data was gathered from 9 participants (4 learners in grade 5 together with their parents, plus their mathematics teacher). Semi-structured interviews, parental contributions and home visit observations were the three tools that I used to collect data. The selected school is located in a rural area in the Omusati region of northern Namibia. The interviews were conducted in Oshiwambo (the participants‟ mother tongue) and translated into English and then analyzed. I discovered that the selected San parents were involved in some but limited school activities. The findings of this study emphasizes that illiteracy may be one of the contributing factors of low or non-involvement of parents among the San community. Other factors which I found caused parents not to assist their children with homework was parents spending much of their time at the local cuca shops during the day until late in the evenings. The study also highlights possible strategies that can be carried out by teachers to encourage parental involvement in school activities.
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An investigation into perceptions of participative management in a Namibian secondary school

  • Authors: Shilima, Christine
  • Date: 2010
  • Subjects: School management and organization -- Namibia -- Case studies Educational leadership -- Namibia -- Case studies Education, Secondary -- Namibia -- Case studies Education -- Parent participation -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1881 , http://hdl.handle.net/10962/d1005874
  • Description: This study examines the perceptions and experiences of school stakeholders about the practices of participative management in a Namibian Secondary School. Data was collected by using interviews, observation and document analysis. The study revealed that participative management has some benefits for the school such as it promotes democracy in school management, school as an open system, sharing of ideas and skills, teamwork and that ownership and commitment enhance the chances for organization change. Participatory decision making and shared leadership are the practices of PM that emerged from this study. However the school does experience challenges such as lack of knowledge on the practice and potential of PM in school management and leadership, illiteracy among parents that prevent them from participation in management and autocratic management practices from some members in formal leadership. The study suggests that trust, relationships and openness are good interpersonal skills that can help enhance the practices of PM in the school. Other strategies were to sensitize stakeholders on the practices of PM.
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An investigation into the feasibility of incorporating didanosine into innovative solid lipid nanocarriers

  • Authors: Wa Kasongo, Kasongo
  • Date: 2010
  • Subjects: Antiretroviral agents HIV infections -- Drug testing Didanosine Nanoparticles Drug delivery systems Nanostructured materials Lipids -- Therapeutic use
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:3800 , http://hdl.handle.net/10962/d1003278
  • Description: The research undertaken in these studies aimed to investigate the feasibility of developing and manufacturing innovative solid lipid carriers, such as solid lipid nanoparticles (SLN) and/or nanostructured lipid carriers (NLC) using a hot high pressure homogenization method, for didanosine(DDI). In addition, studies using in vitro differential protein adsorption were undertaken to establish whether the SLN and/or NLC have the potential to deliver DDI to the central nervous system (CNS). Prior to initiating pre-formulation, formulation development and optimization studies of DDI-Ioaded SLN and/or NLC, it was necessary to develop and validate an analytical method for the in vitro quantitation and analysis of DDI. An accurate, precise and sensitive RP-HPLC method with UV detection set at 248 nm was developed, optimized and validated for the quantitative in vitro analysis of DDI in formulations. Pre-formulation studies were designed to evaluate the thermal stability of DDI and to select and characterize lipid excipients that may be used for the manufacture of the nanocarriers. It was established that DDI is thermostable at temperatures not exceeding 163°C and therefore a hot high pressure homogenization technique could be used to manufacture DDI-loaded SLN and/or NLC. Lipid screening studies revealed that DDI is poorly soluble in both solid and liquid lipids. A combination of Precirol® ATO 5 and Transcutol® HP was found to have the best solubilizing-potential for DDI of all lipids investigated. The inclusion of Transcutol® HP into Precirol® ATO 5 changed the polymorphic form of the solid lipid from the stable 13-modification to a material that exhibited the co-existence between α- and β-polymorphic forms. The relatively high solubility of DDI in Transcutol® HP compared to Precirol® ATO 5 was an indication that a solid lipid matrix prepared from a binary mixture of Precirol® ATO 5 and Transcutol® HP was likely to have a higher loading capacity and encapsulation efficiency for DDI than a matrix consisting of Precirol® ATO 5 alone. Furthermore, the potential for the solid lipid matrix to exist in the α- and/or β-modifications when Transcutol® HP was added to Precirol® ATO 5 suggested that expulsion of DDI from a solid lipid matrix during prolonged storage periods was likely to be minimal. Therefore it was considered logical to investigate the feasibility of incorporating DDI into NLC and not in SLN. However, due to the limited solubility of DDI in lipids, formulation development of DDI-loaded NLC commenced using small quantities of DDI. Formulation development and optimization studies of DDI-loaded NLC were initially aimed at selecting a surfactant system that was capable of stabilizing NLC in an aqueous environment. Solutol® HS alone or a ternary mixture consisting of Solutol® HS, Tween® 80 and Lutrol® F68 was found to stabilize the nanoparticles in terms of particle size and the polydispersity index. The use of the ternary mixture as the surfactant system was preferred to using Solutol® HS alone as Lutrol® F68 and especially Tween® 80 have been successfully used to target the delivery of API to the brain. Aqueous DDI-free and DDI-Ioaded NLC containing increasing amounts of DDI were manufactured using hot high pressure homogenization at 800 bar for three cycles. The NLC formulations were characterized in terms of particle size, polydispersity index, zeta potential, and polymorphism, degree of crystallinity, encapsulation efficiency (EE), shape and surface morphology. The mean particle size for all formulations was below 250 nm with narrow polydispersity indices, indicating that narrow particle size distribution had been achieved. The d99% values for all formulations tested, were generated using laser diffractometry, and were below 400 nm, with span values ranging from 0.84 - 1.19 also suggesting that a narrow particle size distribution had been achieved. The zeta potential values measured in double distilled water with the conductivity adjusted to 50 μS/cm ranged from -18.4 to -11.4 mV. In addition, all the formulations showed a decrease in the degree of crystallinity as compared to the bulk lipid material and WAXS shows that the formulations existed in a single β-modification form. Furthermore DDI that had been incorporated into the NLC appeared to be molecularly dispersed in the lipid matrices. These parameters remained unaffected for most formulations following storage for two months at 25°C. In addition these formulations contained a mixture of spherical and non-spherical particles irrespective of the amount of DDI that was added during the manufacture of the formulations. These studies showed that it was feasible to develop and incorporate small amounts of DDI into NLC. However in order to use these delivery systems for oral administration of DDI to paediatric patients, strategies to improve the amount of DDI that could be loaded into the particles and to achieve high encapsulation efficiencies had to be developed. The limited solubility of DDI in lipid media was identified as a major factor that affected the loading capacity and encapsulation efficiency of DDI in the NLC. Therefore, a novel strategy aimed at increasing the saturation solubility of DDI in the lipid by attempting to increase the dissolution velocity of the drug in the lipid using a particle size reduction approach, was designed and investigated. DDI was dispersed in Transcutol® HP and the particle size of DDI in the liquid lipid medium was reduced gradually using hot high pressure homogenization and the product obtained from these studies was used to manufacture DDI-loaded NLC using a cold high pressure homogenization procedure. Although the encapsulation efficiency and drug loading following use of this approach was relatively high, the particles were large and showed a tendency to grow in size leading to the formation of microparticles after storage for two months at 25°C. In addition, the degree of crystallinity of the nanoparticles increased rapidly over the same storage period which led to expulsion of DDI nanoparticles for the NLC, despite the DDI loading in NLC being unaffected. It was clearly evident that this new approach of manufacturing solid lipid nanocarriers could be used as a platform not only for enhancing the loading capacity of DDI in solid lipid nanocarriers but also for other hydrophilic drugs. Differential protein adsorption patterns of DDI-loaded NLC were generated in vitro using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE) in order to establish the potential for these systems to deliver DDI to the CNS. NLC formulations containing small amounts of DDI were used as these formulations showed a better stability profile than the formulation with a higher encapsulation efficiency and drug loading capacity. Furthermore, the encapsulation efficiency and drug loading of DDI were considered sufficient for use in 2-D PAGE studies. Data obtained from 2-D PAGE analysis reveal that DDI-loaded NLC preferentially adsorb proteins in vitro that are responsible for specific brain targeting in vivo. More importantly, these studies reveal that in addition to Tween® 80 that has already been shown to have the potential to target CDDS to the brain, Solutol® HS 15 has the potential to achieve a similar objective. Consequently, DDI-loaded NLC have the potential to deliver DDI to the brain and these results may be used as a platform for conducting in vivo studies to establish whether DDI can cross the blood brain barrier and enter the CNS when administered in NLC which may in turn lead to a major breakthrough in the management of HIV/AIDS and Aids Dementia Complex (ADC).
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An investigation into the journalistic identities of news workers at the state owned Lentsoe La Basotho/Lesotho Today Newspaper

  • Authors: Kotele, Mothepane
  • Date: 2010
  • Subjects: Lentsoe La Basotho/Lesotho Today Mass media -- Economic aspects -- Lesotho Mass media -- Social aspects -- Lesotho Mass media -- Employees Journalists -- Lesotho Sotho newspapers Journalistic ethics -- Lesotho
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3449 , http://hdl.handle.net/10962/d1002903
  • Description: Informed by the political economy framework and the public service role of media in democracy, the main objective of the study was to use in-depth semi-structured interviews to understand news-workers’ professional journalistic identities in relation to their status as government employees and the understanding of their public service role as outlined in the paper’s mission statement. The main interest was to understand the complexity of negotiating these role identities. Through reference to the theories of journalism professionalism, the study highlighted the extent to which news-workers in the small newsroom of Lentsoe la Basotho/Lesotho Today see themselves as public service journalists in a democratic country. The interest was borne partly out of the views of the paper’s critics who see it as not serving the public but rather promoting the activities and policies of the government of the day, thus falling short of its democratic role. The contention of the study was that as a public service newspaper, the paper should have news-workers who do impartial journalism and reflect the public’s right to know in their reporting. The findings of the study suggests that news-workers at Lentsoe la Basotho/Lesotho Today continuously have to strive to negotiate the potential conflict between being a professional and working for a government-controlled newspaper. While they sometimes lay claim to being journalists, the reality is that in their political coverage they end up adopting the role of government mouthpieces.
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An investigation into the organisational culture at an academically successful secondary school in Namibia

  • Authors: Awarab, Erwin Ronald
  • Date: 2010
  • Subjects: Corporate culture -- Namibia -- Case studies Organizational behavior -- Namibia -- Case studies School management and organization -- Namibia -- Case studies Educational leadership -- Namibia -- Case studies Education, Secondary -- Namibia -- Case studies Educational change -- Namibia -- Case studies
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1612 , http://hdl.handle.net/10962/d1003494
  • Description: The appreciation by leadership of the culture of an organisation plays an important role in the success of that organisation. Leadership and organisation culture are an inextricable part of the life of an organisation. The shared assumptions and beliefs of the individual within an organisation shape its culture. My study investigates the aspects of school culture and, further, looks at its link to the success of an organisation, and at the leadership style that influences such an organisation. My research, conducted in the interpretive paradigm, is a case study which was carried out at a public secondary school in the capital city of Windhoek, in Namibia. Since the school was built during South African rule, it was intended mainly for white children. Since independence, it has undergone transformation and is currently integrated, accommodating learners from different cultural backgrounds. It is a successful school, with a good reputation for its discipline and academic excellence. I chose this school deliberately, for those reasons. My findings are that there are aspects of culture which maintain its creation and perpetuate the existence of a particular culture at the school. This school’s culture is embedded within the Christian faith, and there are deliberate rituals and ceremonies put in place to enhance the creation and maintenance of the values that inform its culture, and the school leadership, management, teachers and student council members have a central role in this regard. My study shows that the creation, understanding and appreciation of beliefs and values of the individual within the organisation enable the consequent creation of the shared vision and values that ultimately lead to the foundation and maintenance of a strong culture.
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An investigation into the readability of the grade 10 physical science textbooks : a case study

  • Authors: Van Heerden, Lesley Lynne
  • Date: 2010
  • Subjects: Textbooks -- South Africa -- Readability , Readability (Literary style) , Science -- Study and teaching (Secondary) -- Case studies
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1993 , http://hdl.handle.net/10962/d1013365
  • Description: In her newsletter “Curriculum News, Improving the Quality of Learning and Teaching: Planning for 2010 and Beyond”, Mrs Angie Motshekga, MP, Minister of Basic Education, positions the textbook very definitely as central to the curriculum and states that it is one of the most effective tools through which to deliver the curriculum and support assessment. Acknowledging the importance of the accessibility of textbooks for the South African classroom audience, this study has sought to investigate the readability of the chemistry section of grade 10 science textbooks. Readability research is concerned with the relationship between the textbook, the reader and the context in which the book is read; research supports the use of both classical quantitative measures and a qualitative cognitive-structural form of analysis to investigate this relationship. The research design is a mixed method one where quantitative and qualitative data were collected simultaneously: the methodical application of selected readability formulae gave rise to quantitative data while the line-by-line textual analysis, tracing cognitive-structural aspects, and focus-group discussions with teachers gave rise to the qualitative data. The results of the merged data analysis were then interpreted together to provide a better understanding of the readability of the texts for a South African audience. The results of the investigation reveal that readability is greatly impaired for a number of reasons, the primary one being a lack of articulation between the textbook writers/editors and the audience for which they are writing and preparing the texts. This is particularly reflected in the inadequate preparation of the material for the English Second Language reader, as certain textbooks are completely out of their reach. Furthermore, this lack of articulation can be traced to the lack of time available for piloting the textbooks: an invaluable intervention in the process of textbook production.
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An investigation into what influences action competence-oriented teaching and learning processes in a school environmental club

  • Authors: James, Alison
  • Date: 2010
  • Subjects: Environmental education -- South Africa -- East London Environmental education -- Activity programs -- South Africa -- East London Environmental literacy -- South Africa -- East London Environmental literacy -- Study and teaching -- South Africa -- East London Active learning -- South Africa -- East London Competency-based education -- South Africa -- East London Teacher-student relationships -- South Africa -- East London
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1619 , http://hdl.handle.net/10962/d1003501
  • Description: This interpretive case study sought to determine what influenced action competence-oriented teaching and learning processes in a high school environmental club. The goals were to describe a year of activities, within the TALON environmental club at Hudson Park High School in East London, South Africa and to identify how pedagogical, contextual and relational factors influenced action competence processes amongst club members. I explored how action competence theory and praxis have helped in other school education settings with the aim of establishing better environmental practices. The IVAC model of pedagogy (Jensen & Schnack, 1997) was used as a framework to operationalise action competence processes within the TALON Club. This entailed carefully examining investigative, visioning, action and change processes unfolding through the four themes of the club: plants, animal welfare, waste issues and our community outreach programme at Bongulethu High School. Using questionnaires, interviews, observation and a journal as the main methods of data collection I was able to make five analytical statements that related to the influence of pedagogy, the influence of context and the influence of relational dynamics within the TALON Club. The pedagogical processes were affected by the TALON members wanting to avoid any activities that were ‘too much like school’. However this served to compromise the action and visioning phases within the club, resulting in superficial and poorly-informed action-taking. The influence of context served to both enable and constrain action competence processes. The club and school structures therefore shaped the form that fledgling actions took as the TALON members participated in the meetings and outings and fulfilling the traditional expectations of the school community. Relational dynamics and a desire for fun took precedence over the action competence processes. Although the Club members were motivated by a sense of moral responsibility they were unable to articulate this concept into the club activities. In addition there were the power gradients between the educators and members to consider as determinants of the extent of participatory, democratic interactions. This complex interplay of factors influenced the action competence processes in the club. Recommendations were made on how best to work with the concepts of participation and democracy towards improving the reflexivity and knowledge base of both the educators and learners. In this way action competence processes will be better supported within the club in future.
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An investigation of how the Namibian Environmental Education Course has shaped and informed the practice of non-formal environmental educators in Namibia

  • Authors: Namutenya, Martina
  • Date: 2010
  • Subjects: Environmental education -- Namibia , Environmental education -- Study and teaching -- Namibia , Non-formal education -- Namibia , Sustainable development -- Namibia , Environmental literacy -- Namibia , Environmental literacy -- Study and teaching -- Namibia , Conservation of natural resources -- Study and teaching -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:2000 , http://hdl.handle.net/10962/d1015225
  • Description: Before Namibia's independence in 1990 educational programmes and curricula gave little attention to environmental education which was detrimental to the development of environmental literacy in Namibia. The post independence education reform process paid special attention to the inclusion of environmental education in all spheres of learning. Furthermore, Namibia became a signatory to various environmental conventions thereby raising awareness about the environment and the potential challenges to a sustainable future. The initiatives of various environmental education projects since independence have responded to the growing concern of environmental education programmes, resulting in the establishment of the Namibian Environmental Education Course (NEEC). To date few studies have been conducted examining the relevance of EE programmes in relation to the professional practice of EE providers in the non-formal sector. This study focuses on the work done by two environmental education providers and four assistant environmental education tutors in Rundu, in North-Eastern Namibia. The study adopted a qualitative approach to investigate how the NEEC has shaped and informed the practice of EE providers in the non-formal sector and also how the NEEC has responded to the Education for Sustainable Development (ESD) programme. The study employed three data collection instruments: interviews, field observations and document analysis. The findings indicated that despite the input of the NEEC programme which provided an understanding and knowledge of environmental problems to the EE providers, there are issues that continue to hamper the effective practice of these providers. The study revealed that the NEEC programme, while within the structure of ESD, does not give explicit guidelines for identifying Namibia's environmental challenges and clear strategies of how to respond to these challenges. The findings of the study have provided valuable insights into aspects of an EE programme that need to be addressed to support EE providers in responding to key environmental challenges in their regions and contribute to the decade of Education for Sustainable Development.
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An investigation of principals' perceptions and experiences of the implementation of the national standards and performance indicators (NSPI) for Namibian schools in the Ohangwena region

  • Authors: Johannes, Thomas Kamusheefa
  • Date: 2010
  • Subjects: Professional education -- Namibia Educational change -- Namibia Education -- Namibia Education and state -- Namibia School management and organization -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1640 , http://hdl.handle.net/10962/d1003522
  • Description: The post independence Namibian education system has been characterised by many reform initiatives, aimed at eradicating inequity, poor performance, and inferior education provision inherited from a pre-independence education system. This legacy posed a serious challenge to Namibia when it set out to achieve a national goal, Vision 2030. Vision 2030 inspires Namibia to be among the eveloped countries in 2030. In an attempt to achieve the goals outlined by the mission statement of Vision 2030, the Ministry of Education (MoE) introduced two national education initiatives: the Education and Training Sector Improvement Program (ETSIP), and the National Standards and Performance Indicators (NSPIs). These would be implemented in Namibian schools as, respectively, the Ministry’s strategic plan and its policy document. The NSPIs were introduced to address the fragmentation of standards and inequity in regions and schools in Namibia, as they aimed to standardise the provision of equal, quality education across the country (Namibia. MoE, 2005a, p. 1). The NSPI policy calls for schools to take quality assurance seriously, with particular emphasis on School Self-Evaluation (SSE), a process that encourages self-management (Namibia. MoE, 2007a, p. 3). Thus, the standards set out by the NSPIs became the yardstick by which internal and external school evaluators could assess whole school performance. The purpose of this present study was to investigate the perceptions and experiences of principals in the Ohangwena Region following the implementation of the NSPIs. It is a case study involving two Inspectors of Education (IoEs), twelve principals, and four Heads of Department (HODs). Interviews, document analysis, questionnaires, and a focus group interview were used to collect the data. The study found that principals acknowledge the importance of the NSPIs, and believe that they would succeed in improving the provision of quality education if they were fully implemented. The study found that schools implemented Performance Indicators 5.3 (School Administration) Aspect 5.3.2 (Storage and retrieval of information) in Key Area 5. However, the results of the study also showed that principals experienced many challenges in the implementation of the NSPIs. These included a lack of understanding among principals and teachers of the NSPIs, a lack of understanding of contemporary leadership theories (that would otherwise help principals to implement change effectively), and a lack of support in terms of skills and resources from both the Regional Office in Ohangwena and the MoE itself. The study found that the NSPIs have not yet improved school performance, and consequently that the pass rate remains the same as before the introduction of the NSPIs, four years ago. The SSE, which aims to help schools identify their strengths and weaknesses, and encourages them to establish and make use of a School Development Plan (SDP) to address weaknesses and sustain strengths, is characterised by a high degree of dishonesty. Thus, the information furnished by SSEs, SDPs, and Teachers Self-Evaluations (TSEs) is unreliable, lacks credibility, and has the further ill-effect of skewing schools’ performance targets. Therefore, this problem could be addressed when the rationale of completing the SSE is clearly explained to principals and teachers.
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An investigation of prior knowledge about amphibians amongst Grade 7 learners : towards the development of a resource pack

  • Authors: Gordon, Louise
  • Date: 2010
  • Subjects: Amphibians -- Study and teaching -- South Africa Environmental education -- South Africa Natural sciences -- Study and teaching -- South Africa
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1641 , http://hdl.handle.net/10962/d1003523
  • Description: The value of frogs is compared to the value of canaries used in coalmines: they are indicators of the environmental status of our environments, thus crucial to our survival. One third of all frogs worldwide are threatened with extinction. Frogs are found in our immediate environment. Are our Natural Science educators, teaching the Life and Living curriculum aware of this threat, the possible impact that the extinction of frogs will have on our welfare? Are our educators making use of the resources in their immediate environment? This study aimed to investigate the prior knowledge in both the horizontal and vertical discourse, in Grade7 learners and their educators, to inform the design of an amphibian resource pack. By investigating their prior knowledge an insight would be gained in their knowledge of Natural Science concepts as well as their everyday knowledge of their immediate natural environment. It would also highlight any misconceptions formed as well as alternative concepts within both educator and learner groups. These insights would be used to inform the contents of said resource pack.
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An investigation of the role of principals in promoting computer usage in selected Namibian schools

  • Authors: Katulo, Mighty Masiku
  • Date: 2010
  • Subjects: Computers -- Study and teaching -- Namibia Educational technology -- Namibia Information technology -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1658 , http://hdl.handle.net/10962/d1003541
  • Description: Globalisation and technology change have created a new global economy fuelled by information and driven by knowledge. Information and Communication Technologies (ICT) have been touted as potential powerful tools for enabling educational change and reform. Namibia is among those countries that have adopted the use of ICTs as a vehicle for change. This thesis explores the role of school principals in promoting and managing computer usage in selected schools in Namibia. The study was conducted at four schools in the Caprivi Region. The study employed a qualitative case study to collect and analyse data. A total of four school principals and four computer coordinators were interviewed, and responded to questions pertaining to the role of principals in the following areas: acquiring ICT equipment; providing access to the computer labs; promoting the use of computers; maintaining computers; capacity-building of teachers, and addressing challenges that could prevent computer usage. Two focus group interviews were also conducted at two schools, to find out what they perceived to be the role of school principals in supporting and ensuring the effective use of computers in schools. The findings on acquisition of computers reveal that principals were often the initiators of the acquisition process. Ministerial deployment is the most common form of acquisition, followed by the use of the school’s development fund to purchase administrative computers. Only one of the participating schools did not acquire its computers through Ministerial deployment. Some schools were more resourced than others. Availability and maintenance of equipment depended on the kind of school (advantaged or disadvantaged) and the way the computers were acquired rather than on the role of the principal. Schools that acquired their computers through the ministerial deployment received satisfactory technical support from the ministry while schools that acquired their computers through other sources had to rely more heavily on the principal to pro-actively seek support. School principals that demonstrated the qualities of transformational leadership promoted the usage of computers by taking part in training offered to teachers and encouraged teachers on different platforms to make use of computers. The study also found that schools in which principals actively supported and promoted the use of computers were successful in the usage of the computer labs, while in schools where principals left the running of the computer lab to an individual teacher, the usage was minimal. It was found that a number of challenges are hampering the usage. These include lack of internet connectivity, qualified personnel to cascade training, and minimum infrastructure. The study recommends that school principals should adopt trategies that encourage teachers to use computers in their daily routines. It also makes suggestions for further research on the impact of school culture on ICT integration.
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An investigation of turnover and retention factors of health professional staff within the Eastern Cape Department of Health

  • Authors: Mrara, Msibulele Theophilus
  • Date: 2010
  • Subjects: Eastern Cape (South Africa) -- Department of Health Medical personnel -- South Africa -- Eastern Cape Hospitals -- Officials and employees -- Turnover -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:754 , http://hdl.handle.net/10962/d1003875
  • Description: Health Professionals are critical in the provision of health services, more especially when it comes to nurses who are next to the patient most of the time. It is critically important for the Eastern Cape Department of Health to ensure that skilled health professionals such as doctors, pharmacists, nurses and the like are retained and the staff turnover regarding this category of staff is appropriately managed. The difficulty to attract and retain health professionals is negatively affecting service delivery in the Eastern Cape department of Health and leaves the department with an unacceptably high vacancy rate. This often put more of a burden on to the health professionals who remain within the organization. Some of them will end up leaving the organization. There is a great shortage of health professionals in South Africa and it becomes easier for the health professionals to get employment elsewhere, particularly in the private sector which appears to have a competitive advantage as compared to the public sector. In this study, both quantitative and qualitative methods were used to gather information through the utilization of a questionnaire and interviews were conducted mainly to confirm the results obtained. The results of the study have assisted to reflect factors that could be influencing the health professionals to leave health facilities of the Eastern Cape Department of Health. The respondents were drawn from the two areas within the Health Department, and these are, Mthatha and Port Elizabeth areas. One hundred (100) questionnaires were issued to the health professionals and sixty three responded. Documents that were received from the department were helpful in determining the turnover rate. The study has revealed that the Eastern Cape Department of Health may succeed in retaining the health professionals if they can be made to feel that their job is important. It appears that health professionals would like to be given enough opportunity to perform their functions and participate in the decision making processes of the department. Some factors may be contributing to the staff turnover and these are, lack of career opportunities to develop, challenges in the workplace, conflict with the management and colleagues. It is always important for the organizations to recognize its employees by giving them space to practice their profession and create a comfortable workplace that could have an impact in influencing the employee to remain within the organization. Employee turnover can be minimized, if employees can be exposed to a healthy workplace environment that will assist if fostering happiness, and in the process, enhance their motivation. It is imperative for the Eastern Cape Department of Health to focus on the training and development of its employees in order to increase the efficiency and competitiveness. As the employees gain the necessary skills to perform their job, productivity may improve. The performance of the employees should be properly managed, and the resultant incentives and rewards must be fairly distributed. This could promote harmony in the workplace and that could help in building relationships among employees. If employees are satisfied, there is an increased chance that they will stay within the organization and it becomes difficult for other competitors to attract them. Employees must be given adequate space to participate in the decision making processes of the organization, and by doing so, their loyalty to the organization could be increased.
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An ion imprinted polymer for the selective extraction of mercury (II) ions in aqueous media

  • Authors: Batlokwa, Bareki Shima
  • Date: 2010 , 2013-07-18
  • Subjects: Mercury , Metal ions , Imprinted polymers , Polymerization
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4294 , http://hdl.handle.net/10962/d1004541 , Mercury , Metal ions , Imprinted polymers , Polymerization
  • Description: This thesis presents the application of an imprinted mercury(lI) polymer that we synthesized by copolymerizing the functional and cross-linking monomers, N'-[3-(Trimethoxysilyl)propyl] diethylenetriamine (TPET) and tetraethylorthosilicate (TEOS) in the presence of mercury (II) ions as template. A bulk polymerization method following a double-imprinting procedure and employing hexadecyltrimethylammonium bromide (CTAB), as a second template to improve the efficiency of the polymer was employed in the synthesis. The imprinted polymer particles were characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and their average size determined by screen analysis using standard test sieves. The relative selective coefficients (k') of the imprinted polymer evaluated from selective binding studies between Hg ²⁺and Cu²⁺ or Hg²⁺ and Cd²⁺, were 10588 and 3147, respectively. These values indicated highly favored Hg²⁺ extractions over the two competing ions. Application of the polymer to various real water samples (tap, sea, river, pulverized coal solution, treated and untreated sewerage from the vicinity of Grahamstown in South Africa) showed high extraction efficiencies (EEs) of Hg²⁺ ions; (over 84% in all cases) as evaluated from the detected unextracted Hg²⁺ ions by inductively coupled plasma optical emission spectroscopy (ICP-OES). The limit of detection (LOD, 3ơ) of the method was evaluated to be 0.036 ng ml⁻¹ and generally the data (n=10) had percentage relative standard deviation (%RSD) of less than 4%. These findings indicate that the double-imprinted polymer has potential to be used as an efficient extraction material for the selective pre-concentration of mercury(lI) ions in aqueous environments. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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An organization development intervention in a Namibian rural school in Ohanguena region

  • Authors: Kashikatu, Lukas
  • Date: 2010
  • Subjects: Action research in education -- Namibia Organizational change -- Namibia School improvement programs -- Namibia Educational change -- Namibia -- Case studies Rural schools -- Namibia School management and organization -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1684 , http://hdl.handle.net/10962/d1003567
  • Description: Post independent Namibia adopted a decentralization policy which involved the transfer of decision-making powers and administrative authority from central government to government institutions, including schools, with a view to improving quality. However, despite new educational policies, Namibian educators continue to operate in a non-participatory manner and are unprepared for their role as change agents. This has created tension between the espoused benefits of decentralizing and the reality in schools. In such a turbulent situation schools need to be helped to understand the complexity of change in order to adapt, and OD plays a crucial role in this regard. OD is a consciously thought of and systematically implemented organization-wide improvement effort which aims at increasing organizational effectiveness and health through action research. Rather than a top-down change approach, the OD practice adopts a bottom-up approach to change. This study introduced and investigated an OD intervention in a Namibian rural school in Ohanguena Education Region, with the purpose of exploring participants’ perceptions and experience of the process and of the possible short-term outcome of the intervention. Its findings could be of significance to educators, organizations and future OD esearchers. The study is an action research case study located in the interpretive and critical paradigms. Multiple data collection tools were used during this study, namely observations, structured one-to-one interviews and focus group interviews. Interpretive analysis was used as the data analysis approach. The study found that despite OD being new to participants, it was embraced as a change strategy as it made significant impact on their understanding of organizations and conception of change which is radically different from the common top-down approach to change. The intervention further empowered participants with new skills of initiating change and problem-solving strategies. Apart from that, the intervention yielded a positive short-term outcome which motivated participants to adopt and apply OD in the future without underestimating challenges associated with the process.
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Analysis of the anti-cancer activity of novel indigenous algal compounds in breast cancer: towards the development of a model for screening anti-cancer stem cell activity

  • Authors: Lawson, Jessica Clair
  • Date: 2010
  • Subjects: Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:3925 , http://hdl.handle.net/10962/d1003984 , Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
  • Description: Breast cancer, the most common malignancy diagnosed in women, is one of the leading causes of death in women worldwide. In South Africa only 32% of women diagnosed with advanced breast cancer survive more than five years. The search for new chemotherapeutic agents capable of effectively treating breast cancer is therefore essential. Recent evidence supporting the cancer stem cell theory of cancer development for breast cancer challenges the current theories of cancer development and hence treatment. Cancer stem cells are a small subpopulation of tumour cells that possess properties of both cancer cells and stem cells and are believed to be the tumour-initiating population of many cancers. Cancer stem cells are inherently resistant to many chemotherapeutic agents and in this way have been associated with repopulation of tumours after chemotherapy. This phenomenon is proposed as a possible mechanism for cancer relapse after treatment. Cancer stem cells have also been implicated in metastasis, the major cause of mortality in cancer patients. Therefore, any treatment that is capable of targeting and removing breast cancer stem cells may have the theoretical potential to effectively treat breast cancer. However, there are currently no such treatments available for clinical use. We were provided access to a library of novel indigenous small molecules isolated from red and brown algae found off the Eastern Cape of South Africa. The aim of this project was to analyse the anti-cancer and anti-cancer stem cell properties of the compounds in this library and to identify „hit‟ compounds which could form the basis for future development into new anti-cancer drugs. Ten novel compounds of algal origin were tested for cytotoxicity, by determining their ability to inhibit the growth of MCF12A breast epithelial cells and MCF7 breast cancer cells using the colorimetric MTT [(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] cell proliferation assay. All but one of the compounds tested exhibited cytotoxicity towards the MCF7 cancer cell line, with IC50 values (the concentration of the compound that leads to a 50% inhibition in cell growth) of between 3 μM and 90 μM. The chemotherapeutic drug paclitaxel was used as a positive control. Four of the compounds (RUMB-001, RUMB-002, RUMB-007 and RUMB-010/saragaquinoic acid) were significantly more toxic to the MCF7 cancer cell line, than the „normal‟ MCF12A breast cells and were selected as priority compounds for further analyses. In addition, two other compounds were selected as priority compounds, one highly cytotoxic towards both MCF12A and MCF7 cell lines (RUMB-015) and one which was non toxic to either cell line (RUMB-017/018). Preliminary studies into the mechanism of cytotoxicity using Western blot analysis for poly (ADP-ribose) polymerase (PARP) cleavage and Hoechst 33342 immunostaining in MCF-7 cells were largely unsuccessful. The Hoechst 33342 immunostaining assay did provide tentative evidence that selected priority compounds were capable of inducing apoptosis, although these assays will need to be repeated using a less subjective assay to confirm the results. The priority compounds were subsequently investigated for their cytotoxic effect on the cancer stem cell-enriched side population in MCF7 cells. The ability of the priority compounds to selectively target the cancer stem cell containing side population was assessed using two complementary flow cytometry-based techniques – namely the Hoechst 33342-exclusion assay, and fluorescent immunostaining for the expression of the putative cancer stem cell marker, ABCG2+. The ABCG2+ staining assay was a novel technique developed during the course of this study. It remains to be fully validated, but it may provide a new and reliable way to identify and analyse cancer stem cell containing side population cells. The MCF7 cells were treated with the compounds and the proportion of putative cancer stem cells compared with the size of the population in untreated cells was assessed. Three compounds (RUMB-010, RUMB-015 and RUMB-017/018) capable of reducing the proportion of side population cells within the MCF7 cell line were identified. Taking these data together, we identified two potential „hit‟ compounds which should be prioritised for future research. These are compounds RUMB-010/sargaquinoic acid and RUMB-017/018. RUMB-010 is of interest as it was shown to target the putative cancer stem cell population, in addition to the bulk MCF7 tumour line, but was relatively less toxic to the „normal‟ MCF12A cell line. RUMB-017/018 is of interest due to the ability to selectively target the cancer stem cell enriched side population, while having little effect on the normal (MCF12A) or bulk tumour (MCF7) cell lines tested. These compounds will be important as „hit‟ compounds for drug development and as tool compounds to study cancer and cancer stem cell biology.
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Analytical methods for the quantitative determination of oxytocin

  • Authors: Chaibva, Faith A , Walker, Roderick B
  • Date: 2010
  • Language: English
  • Type: Article
  • Identifier: vital:6353 , http://hdl.handle.net/10962/d1006037
  • Description: Oxytocin is a clinically important nonapeptide that is used for the induction and/or augmentation of labor and is normally administered as a slow intravenous infusion diluted with normal saline or Ringer’s lactate solution. Oxytocin is also indicated for use in the prevention and treatment of post partum hemorrhage and may be administered via either the intramuscular or intravenous routes in order to increase uterine tone and/or reduce bleeding. The analysis of oxytocin in different media has evolved over the past 30 years with the result that more sophisticated, selective and sensitive techniques are used for the determination of the compound. A variety of techniques have been applied to the determination of oxytocin in different matrices ranging from simple paper chromatography to hyphenated liquid chromatographic such as liquid chromatography coupled with mass-spectrometry. Additionally enzyme linked immuno-sorbent assays (ELISA) and radio immuno-assays (RIA) are used for the determination of low concentrations of oxytocin in biological matrices. This manuscript provides a systematic survey of the analytical methods that have been reported for isolation and quantitation of oxytocin in different matrices.
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Applicability of the REALM health literacy test to an English second-language South African population:

  • Authors: Dowse, Roslind , Lecoko, Motlalepule L E , Ehlers, Martina S
  • Date: 2010
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/156798 , vital:40051 , https://doi.org/10.1007/s11096-010-9392-y
  • Description: Objective and setting. To investigate health literacy in an English second language population using the REALM test, to evaluate its appropriateness and to compare health literacy between four different education categories. Setting Primary healthcare clinics and participant homes in Grahamstown, South Africa.
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