A narrative study of patients’ illness experiences on antiretroviral treatment
- Authors: Tsope, Lindiwe
- Date: 2018
- Subjects: AIDS (Disease) Social aspects South Africa , HIV infections Social aspects South Africa , Stigma (Social psychology) , Antiretroviral agents , Disclosure of information , Social media in medicine South Africa , Discourse analysis, Narrative
- Language: English
- Type: text , Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/63032 , vital:28356
- Description: Eight female respondents, who have publicly disclosed their HIV-positive status on social media, were involved in a semi-structured in-depth interview process. Using the theoretical frameworks of symbolic interactionism and social constructionism, the study explores the effects of antiretroviral treatment on patients’ illness experiences, looking at the personal and social symbolisms and meanings attached to taking antiretrovirals. The study revealed a positive and inspirational aspect of living with HIV/AIDS and especially consuming antiretroviral therapy. It became evident that the knowledge participants had of antiretrovirals before consuming them was misguided and based more on false ‘general knowledge’ among laypersons than actual medical fact. Moreover, the study revealed that there is a social reconstruction of narratives that has taken place in each participant’s life due to consuming antiretrovirals. Publicly disclosing their statuses has also proved to have both negative and positive consequences for the individuals and for society at large. While there is a consensus that participants’ illness experiences are directly affected by antiretroviral treatment, each participant’s narrative is different, yet positive.
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- Date Issued: 2018
Interactions between three biological control agents of water hyacinth, Eichhornia crassipes (Mart.) Solms (Pontederiaceae) in South Africa
- Authors: Petela, Nomvume
- Date: 2018
- Subjects: Water hyacinth -- South Africa , Water hyacinth -- Biological control -- South Africa , Aquatic weeds -- Biological control -- South Africa , Curculionidae , Delphacidae , Miridae , Neochetina eichhorniae Warner , Megamelus scutellaris Berg , Eccritotarsus eichhorniae Henry
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/60676 , vital:27814
- Description: Water hyacinth, Eichhomia crassipes (Mart.) Solms (Pontederiaceae) is a free-floating perennial weed that is regarded as the worst aquatic weed in the world because of its negative impacts on aquatic ecosystems. It is native to the Amazon Basin of South America, but since the late 1800s has spread throughout the world. The first record of the weed in South Africa was noted in 1908 on the Cape Flats and in KwaZulu-Natal, but it is now dispersed throughout the country. Mechanical and chemical control methods have been used against the weed, but biological control is considered the most cost-effective, sustainable and environmentally friendly intervention. Currently, nine biological control agents have been released against water hyacinth in South Africa, and Neochetina eichhorniae Warner (Coleoptera: Curculionidae) is used most widely to control it. However, in some sites, water hyacinth mats have still not been brought under control because of eutrophic waters and cool temperatures. It was therefore necessary to release new biological control agents to complement the impact of N. eichhorniae. Megamelus scutellaris Berg (Hemiptera: Delphacidae) was released in 2013, but little is known about how it interacts with other agents already present in South Africa. It is likely to compete with the established biological control agent, Eccritotarsus eichhorniae Henry (Heteroptera: Miridae), because they are both sap suckers. On the other hand, N. eichhorniae is the most widespread and thus the most important biological control agent for water hyacinth. The aim of this study, then, was to determine the interactions between the two sap-sucking agents in South Africa that presumably occupy similar niches on the plant, and the interaction between M. scutellerais and N. eichhorniae, the most widely distributed and abundant agent in South Africa. Three experiments were conducted at the Waainek Research Facility at Rhodes University, Grahamstown, Eastern Cape, South Africa. Plants were grown for two weeks and insect species were inoculated singly or in combination. Water hyacinth, plant growth parameters and insect parameters were measured every 14 days for a period of 12 weeks. The results of the study showed that feeding by either E. eichhorniae or M. scutellaris had no effect on the feeding of the other agent. Both agents reduced all the measured plant growth parameters equally, either singly or in combination (i.e. E. eichhorniae or M. scutellaris alone or together). The interaction between the two agents appears neutral and agents are likely to complement each other in the field. Prior feeding by E. eichhorniae or M. scutellaris on water hyacinth did not affect the subsequent feeding by either agent. Megamelus scutellaris prefers healthy fresh water hyacinth plants. In addition, planthoppers performed best in combination with the weevil, especially on plants with new weevil feeding scars. The results of the study showed that M. scutellaris is compatible with other biological control agents of water hyacinth that are already established in South Africa. Therefore, the introduction of M. scutellaris may enhance the biological control of water hyacinth in South Africa.
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- Date Issued: 2018
Learner voice and leadership: a study of a Learner Representative Council in a primary school in Namibia
- Authors: Kapuire, Dominika Bertha
- Date: 2018
- Subjects: Educational leadership -- Namibia , School management and organization -- Namibia , Student government -- Namibia , Student participation in administration -- Namibia , Education, Primary -- Namibia , Cultural Historical Activity Theory
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/62177 , vital:28135
- Description: Numerous literature world-wide emphasises the significance of learner voice and leadership in schools. These concerns are not new to the education system of Namibia, because the education system is shaped by policy which encourages the voices of all stakeholders in the schools. The Education Act 16 of 2001 introduced the Learner Representative Council (LRC) as a legitimised body in secondary schools which represents learners in school level decision-making. Learner Representative Council members in secondary schools are allowed to sit in on School Board meetings and voice their concerns about issues at the school. The Act also involved parents, allowing them to air their views on behalf of their children, by becoming part of the School Board. Although this is what the Act 16 of 2001 introduced, recent researchers have urged for the need to develop learner voice and leadership in schools, as many schools have turned a blind eye to its significance. This is also what prompted me to conduct a study on the development of learner voice and leadership. This research was conducted within the context of learner leadership at a primary school in the Otjozondjupa region, Namibia, focusing on the school’s existing Learner Representative Council (LRC). The study explores the underlying reasons for the current problems in the LRC structure and beyond, opening up leadership opportunities, and promoting learner voice at the school. Participants in the research were drawn from learners, teachers, heads of department, and the principal. As a qualitative case study in the interpretive paradigm, the study employed a range of data collection strategies - questionnaires, interviews, focus group interviews, observation and Change Laboratory (CL) workshops - to gather data to answer key research questions: How is the LRC currently involved in the leadership of the school? What are the factors inhibiting the development of learner leadership in the school? What opportunities exist for the development of learner voice and leadership within the LRC? How can learner voice and leadership be developed through Change Laboratory (CL) workshops? The research was underpinned by the second generation of Cultural-Historical Activity Theory (CHAT) as an analytical framework. CHAT had the potential to bring problems and challenges into focus, which was then used to open up expansive learning in the CL workshops. Data collected from the participants was surfaced as mirror data in these workshops. The study showed that the LRC was not active in their leadership roles and that they were not given enough opportunities to function freely in their roles. These learners were under a traditional system of leadership, whereby teachers had all the control and say in the learners’ leadership roles. The development of learner leadership was only recognised through the leadership training camp. Many factors that inhibited the development of learner voice and leadership also emerged in the study. Lastly, the notion of developing learner voice was also not understood by some teachers, which showed in their contradicting views. This study recommends that learner leadership should be developed, starting at an early age in the primary school. It also recommends that learners, however young, should be given a platform to contribute to the decision making at their schools.
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- Date Issued: 2018
Occurrence of mugilid and sparid fishes in Zostera capensis and bare sediment habitats of the Knysna Estuary
- Authors: Pollard, Melissa
- Date: 2018
- Subjects: Gray mullets South Africa Knysna Lagoon , Sparidae South Africa Knysna Lagoon , Seagrasses South Africa Knysna Lagoon , Eelgrass South Africa Knysna Lagoon , Gray mullets Habitat South Africa Knysna Lagoon , Sparidae Habitat South Africa Knysna Lagoon , Underwater videography in wildlife monitoring , Seining , Zostera capensis Setchel
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/54979 , vital:26641
- Description: Seagrass meadows are regarded as one of the most unique and valuable ecosystems in the biosphere, primarily because of the variety of services that they provide. Seagrass meadows serve as nursery grounds for many species and often play an important role in the juvenile stages of economically and recreationally important fish. Zostera capensis Setchell is one of the most dominant submerged macrophytes and the most common seagrass in South African estuaries and is often referred to as eelgrass. Zostera capensis meadows occupy a large area within the Knysna Estuary but little is known about their importance to associated fish assemblages. With Z. capensis meadows being under increased pressure from anthropogenic influences, it is important to establish which fish species and families utilize these habitats and what role they play in the ecology of fish assemblages within the Knysna Estuary. The primary objective of this study was to compare the use of Z. capensis and adjacent bare sediment areas by mainly large juvenile and subadult sparids and mugilids using different techniques. The two main hypotheses were as follows; 1) Mugilidae are likely to be more dominant in the unvegetated areas of the estuary littoral and Sparidae are likely to predominate within the Z. capensis bed areas of the estuary littoral. 2) The non-destructive underwater video monitoring method would yield similar fish composition data to seine netting sampling of the identical sites. Both hypotheses were assessed using data collected during this study and the analysis of historical unpublished data. Overall, Mugilidae were more abundant at bare unvegetated areas where they did most of their foraging. Sparidae were more abundant in the Z. capensis beds, which was also the habitat where they primarily foraged. With regards to the comparison of two different sampling methods, namely underwater video monitoring and seine netting, similar patterns arose with regards to the fish species observed in camera footage and those captured in the seine net, although the abundances were not always comparable.
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- Date Issued: 2018
The relationships between perceived competence, goal orientation and mind sets on the motivation to participate in sport at university
- Authors: Nel, Marcus Craig
- Date: 2018
- Subjects: College sports -- South Africa -- Makhanda , College students -- Attitudes , Sports -- Psychological aspects , Motivation (Psychology) , Competition (Psychology)
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/61592 , vital:28040
- Description: The research sought to uncover the links that exist between perceived competence, goal orientations and mind sets with the motivation to participate in sports. The research was conducted in a South African university context and was comprised of 212 participants. Data was collected through the use of Sports Motivation Scale 6, Intrinsic Motivation Inventory: Perceived Competence Subscale, Task and Ego Orientation in Sport Questionnaire and the Self-Theory Questionnaire. The participants completed the questionnaires using a pen and paper technique at their various sports practices. Data was collected and analysed using Pearson’s correlation coefficient in order to demonstrate the strength and nature of the relationships that existed between the variables. Findings generally supported previous findings. Using a deductive approach, the main findings found that various types of motivation based on Self-Determination Theory demonstrated a proportional relationship with task orientation and little to no relationship was found between motivation and ego orientation. The relationships between motivation and perceived competence were mixed, with the most significant relationship occurring between integrated regulation and perceived competence. Fixed mind sets also showed little to no relationship with motivation, whereas growth mind sets showed proportional relationships with the various kinds of motivation. Further relationships between these variables were also explained. It is recommended that data collection techniques are improved in future research. This research may be useful in indicating what factors are related to motivation to play sport at university.
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- Date Issued: 2018