List of Titles

An analysis of the efficacy of placing ailing municipalities under administration: a case of Mnquma Municipality in the Eastern Cape

- Twalo, Nondumiso

Authors: Twalo, Nondumiso
Date: 2016
Subjects: Municipal government -- South Africa -- Eastern Cape Public administration -- South Africa -- Eastern Cape Municipal services -- South Africa -- Eastern Cape
Language: English
Type: Thesis , Masters , MPA
Identifier: http://hdl.handle.net/10353/1862 , vital:27568
Description: This research conducts an examination of the efficacy of placing municipalities under administration with the overriding objective of determining the appropriate strategies that can be recommended for improving governance in municipalities. In a bid to achieve this overriding objective, the entire research process was guided by the research objectives and questions that examined; tools used to evaluate the success of provincial interventions, governance of Mnquma Municipality pre and post the intervention strategies which are used for improving municipal governance. Although the secondary research was accomplished through the review and analysis of the relevant literatures and theories, the qualitative research approach was used in the primary research process. The findings of the study indicate that achieving effective municipal governance in South Africa is far from being attained. In terms of the principles for effective governance, the study reveals that the effective implementations of good governance principles in municipalities is marred by factors that include; poor definitions of terms of reference of intervention processes, poor definition of what poor governance in municipalities, lack of evaluation tools for intervention and a process that is highly dependent on subjectivity which subjects it to undue external influence. In thediscussions, it was argued that this subsequently contribute poor working environment, non-improving municipal governance, lack of commitment and non-improving quality of service delivery. However, it was noted that there is still ineffective applications strategies which can be used for improving municipal governance in South Africa. While considering the primary and secondary findings of the study, it was recommended that despite all the contrasting views on the intervention, there was a lot of common ground on the strategies that could be used to improve municipal governance which should be implemented in municipalities.
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Date Issued: 2016

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The survival of micro -enteprises in Kampala, Uganda :a substainable livelihoods approach

- Twinorugyendo,Penninah

Authors: Twinorugyendo,Penninah
Date: 2016
Subjects: Microfinance -- Uganda -- Kampala New Business Enterprises -- Uganda -- Kampala -- Finance , Small business -- Uganda -- Kampala
Language: English
Type: Thesis , Doctoral , PHD
Identifier: http://hdl.handle.net/10948/45333 , vital:38571
Description: This purpose of this thesis was to explain the resilience of certain micro-enterprises (MEs) in Kampala, Uganda – by focusing on their vulnerability, the assets that they brought to bear on the situation, the role of non-governmental organizations and government institutions in supporting MEs, and the strategies used by ME owners, themselves. As such, it adopts the Sustainable-Livelihoods approach – an approach that has not been used in Kampala before. Thus, it makes a valuable contribution to the field. Designed as a qualitative study, it used in-depth interviews and focus-group discussions. The major findings on vulnerability were linked to: the rising cost of materials; unfair licensing; the struggle to win tenders; local and foreign competition; and the disruption of utilities. The assets used to sustain the welfare of the MEs included: making use of a range of skill-acquisition strategies; leveraging networks; and pooling resources. Financial assets used by MEs revolved around informal savings and credit schemes; but the support given to the MEs through government agencies and NGOs was difficult to assess. Several important strategies were used by ME owners. One of these involved linking with formal construction companies. In addition, temporary workshops constructed out of wood-and-iron, were common. This increased mobility and allowed the re-use of materials. Furthermore, MEs manufactured their own tools, developed new marketing techniques, and diversified their income-generating activities. The significance of this study is two-pronged. It demonstrates that the resilience of MEs does depend on their own positive qualities, but also on an increasingly business-friendly national and international economic environment.
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Date Issued: 2016

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Synthesis and exploration of resorcinol derivatives as Plasmodium falciparum Hsp90 inhibitors

- Umumararungu, Théoneste

Authors: Umumararungu, Théoneste
Date: 2016
Language: English
Type: Thesis , Doctoral , PhD
Identifier: http://hdl.handle.net/10962/717 , vital:19984
Description: In this research project, we have synthesized a series of nine dimethyl ether resorcinol analogues of NMS-E973 (L-1) 38, a potent Hsp90 inhibitor. These analogues were chosen because they share the same pharmacophore with NMS-E973 (L-1) 38 and were thus expected to have a similar biological activity. Moreover, it is generally easier to synthesize the dimethyl ether resorcinol analogues of NMS-E973 (L-1) 38 as compared to their demethylated counterparts. Since other Hsp90 inhibitors such as geldanamycin 19 have demonstrated anti-plasmodial activity, we also expected our compounds to be Hsp90 inhibitors and to possess anti-plasmodial activity. However, our compounds were tested for growth inhibitory activity of Plasmodium falciparum and not for P. falciparum Hsp90 (PfHSP90) inhibitory activity. The synthesis involved a series of steps that led to the formation of the ester compound TU-011 (L-7) 43 that was then used as a precursor for different NMS-E973 (L-1) 38 analogues. The choice of analogues to be synthesized was dictated by binding affinity predictions obtained from molecular docking. The chosen synthetic analogues were active against chloroquine-sensitive Plasmodium falciparum (3D7 strain) in a Plasmodium lactate dehydrogenase assay and they were not generally cytotoxic to human cervical adenocarcinoma cell line HeLa. The most active of our compounds was TU-018 (L-103) 50 with an IC50 value of approximately 1.830 µM as compared to the standard, chloroquine, with an IC50 value of 0.01062 µM. Some of the compounds showed mild cytotoxicity towards HeLa cells with IC50 values higher than 25 µM as compared to the standard apoptosis inducer drug, emetine that had an IC50 value of 0.09948 µM. These results highlight the fact that the synthesized analogues are novel relatively non-toxic anti-plasmodial agents.
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Date Issued: 2016

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Single station TEC modelling during storm conditions

- Uwamahoro, Jean Claude

Authors: Uwamahoro, Jean Claude
Date: 2016
Language: English
Type: Thesis , Masters , MSc
Identifier: http://hdl.handle.net/10962/3812 , vital:20545
Description: It has been shown in ionospheric research that modelling total electron content (TEC) during storm conditions is a big challenge. In this study, mathematical equations were developed to estimate TEC over Sutherland (32.38oS, 20.81oE), during storm conditions, using the Empirical Orthogonal Function (EOF) analysis, combined with regression analysis. TEC was derived from GPS observations and a geomagnetic storm was defined for Dst ≤ -50 nT. The inputs for the model were chosen based on the factors that influence TEC variation, such as diurnal, seasonal, solar and geomagnetic activity variation, and these were represented by hour of the day, day number of the year, F10.7 and A index respectively. The EOF model was developed using GPS TEC data from 1999 to 2013 and tested on different storms. For the model validation (interpolation), three storms were chosen in 2000 (solar maximum period) and three others in 2006 (solar minimum period), while for extrapolation six storms including three in 2014 and three in 2015 were chosen. Before building the model, TEC values for the selected 2000 and 2006 storms were removed from the dataset used to construct the model in order to make the model validation independent on data. A comparison of the observed and modelled TEC showed that the EOF model works well for storms with non-significant ionospheric TEC response and storms that occurred during periods of low solar activity. High correlation coefficients between the observed and modelled TEC were obtained showing that the model covers most of the information contained in the observed TEC. Furthermore, it has been shown that the EOF model developed for a specific station may be used to estimate TEC over other locations within a latitudinal and longitudinal coverage of 8.7o and 10.6o respectively. This is an important result as it reduces the data dimensionality problem for computational purposes. It may therefore not be necessary for regional storm-time TEC modelling to compute TEC data for all the closest GPS receiver stations since most of the needed information can be extracted from measurements at one location.
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Date Issued: 2016

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Temperature-dependent performance and potential distribution of Pareuchaetes insulata, a biological control agent of Chromolaena odorata in South Africa

- Uyi, Osariyekemwen O, Zachariades, Costas, Hill, Martin P, McConnachie, Andrew J

Authors: Uyi, Osariyekemwen O , Zachariades, Costas , Hill, Martin P , McConnachie, Andrew J
Date: 2016
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/418067 , vital:71505 , xlink:href="https://doi.org/10.1007/s10526-016-9760-1"
Description: Despite the release of about 1.9 million individuals of Pareuchaetes insulata (Walker) (Lepidoptera: Erebidae) in KwaZulu-Natal for the biological control of Chromolaena odorata (L.) King and Robinson (Asteraceae) in South Africa, the moth probably only established at one of the 30 release sites and its population level is generally low in the field. To determine whether climate incompatibility in South Africa is responsible for the poor performance of P. insulata, the effects of temperature on life-history traits were investigated under several constant temperatures. Although a degree-day model estimated between 3.9 and 10.0 generations of the moth per year in the weed’s invaded range, survival and fecundity declined while development time was prolonged at constant temperatures below 25 °C, indicating that both direct and indirect negative impacts of low winter temperatures, such as increased mortality, slow development and reduced fecundity as well as exposure to natural enemies, may partly explain the poor performance of P. insulata in South Africa.
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Date Issued: 2016

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Nitrogen fertilisation improves growth of Chromolaena odorata (Asteraceae) and the performance of the biological control agent, Pareuchaetes insulata (Erebidae)

- Uyi, Osariyekemwen O, Zacharariades, Costas, Hill, Martin P

Authors: Uyi, Osariyekemwen O , Zacharariades, Costas , Hill, Martin P
Date: 2016
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/416880 , vital:71393 , xlink:href="https://doi.org/10.1080/09583157.2015.1118615"
Description: Recent studies have demonstrated, through their contrasting results, that relationships between nitrogen levels in host plants and phytophagous insect performance are not simple. This study examined the effect of varying fertilisation regimes on the invasive alien plant, Chromolaena odorata (L.) (Asteraceae) and the response of a specialist folivore (a biological control agent), Pareuchaetes insulata (Walker) (Lepidoptera: Erebidae). C. odorata plants were treated with 3 different levels of fertilisation and plant characteristics were measured within 2–3 months of fertiliser application. Leaves from each of the three treatments were fed to newly hatched larvae until pupation in order to determine the effect of nitrogen fertilisation on herbivore performance metrics such as survival, development time, fecundity and longevity. High and medium fertilisation significantly increased foliar nitrogen concentrations, basal stem diameter, leaf length, shoot height and above-ground biomass of C. odorata plants relative to low fertilisation. When individuals of P. insulata were fed on leaves from medium- or high-fertilisation treatments, they developed faster, grew to a larger size (by 8%) and achieved higher fecundity (19–22%) than leaves from the low-fertilisation treatment. The results suggest that in mass-rearing, increased production of this biological control agent will occur in high- or medium-fertilised plants.
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Date Issued: 2016

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Managerial leadership in committees: a case study in a public rural combined school in the Ohangwena region, Namibia

- Vaeta, Simon

Authors: Vaeta, Simon
Date: 2016
Language: English
Type: Thesis , Masters , MEd
Identifier: http://hdl.handle.net/10962/1220 , vital:20036
Description: The existing education legislations in Namibia call for school principals to put in place appropriate support mechanisms and create necessary internal conditions for leaders, including teachers who do not hold formal leadership positions, to exert their sphere of influence beyond the classroom and into school-wide leadership activities. The establishment of various committees in the school is to enhance and improve the performance of the school and to create a pleasant work environment and spirit of collaboration and teamwork (Namibia Ministry of Education, [MoE], 2005). Leadership in committees is one of the expectations of new education policy. The aim of this study was to explore the leadership practices within a range of committees in a public rural combined school in the Ohangwena region of Namibia. It further unpacked the purpose, roles and membership of each of the four committees; how these committees were established; what leadership functions the teachers as committee members exercised and what challenges inhibited their leadership practices within committees. The study provided recommendations for future research in the area of leadership practices in committees. This research is a case study. The study is designed within the qualitative interpretive paradigm. It is rooted in a social constructivist tradition and employs a range of data collection tools, namely document analysis, semi-structured interviews, observations and questionnaires to enhance the validity of findings. The study found that committees were established in line with the Namibian education legislation. However, the study found the principal lacked the experience and skills to use the committee system more effectively, and maintained the status quo. This resulted in the committees practising pure management responsibilities rather than leadership interest. The study also found that only the leadership tasks were distributed to the committees but the power was not distributed. It was revealed that committees were dormant; while they were named in school documents, they functioned variously, intermittently or not at all. The significance of the contradiction was there were no regulations to guide the conduct of committee members.
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Date Issued: 2016

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