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Evaluating the business improvement strategies, practices and challenges in the platinum mining industry

  • Authors: Mulaudzi, Marubini David
  • Date: 2018
  • Subjects: Business planning -- South Africa , Decision making
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: http://hdl.handle.net/10948/32938 , vital:32412
  • Description: The purpose of this study was to evaluate the strategies, practices and challenges relating to business performance and the implementation of business improvement to align production and maintenance strategies to the corporate strategy in Anglo American Platinum, a mining operation in South Africa. A set of questions were used in a qualitative research design through interview questions to collect data from corporate strategic management and the operational management involved in business improvement initiatives in the production and maintenance processes. Globally, mining companies are faced with many challenges, including safety, system integration and standardisation, caring for the environment, cost controlling and reliability of machinery and equipment. The mining industry is both labour and capital-intensive. While the South African labour force has unlimited demands on wages and salaries, most machinery runs at its maximum capacity and requires more capital for the operations to continue production, ensuring value creation for all stakeholders and hence sustainability of the operations. The situation was aggravated when market forces determining the commodity prices became volatile, causing the slump in the commodity prices. As a result, profit margins were eroded by the higher costs of production and higher wages costs. To create a sustainable, cost-effective operation and improve recovery and grades, mining companies such as Anglo American Platinum implemented a business improvement initiative. This study aims to evaluate the strategies, practices and challenges in relation to business improvement at Anglo American Platinum. Observations are that the impact of misalignment between corporate strategy, together with business improvement production and maintenance strategies, contribute minimally to the performance of production at Anglo American Platinum.
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  • Date Issued: 2018

Evaluating the effects of catch-and-release angling on Cape stumpnose Rhabdosargus holubi in a South African estuary

  • Authors: Arkert, N K , Childs, Amber-Robyn , Parkinson, Matthew C , Winkler, Alexander C , Butler, Edward C , Mannheim, Samantha L , Potts, Warren M
  • Date: 2018
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/124439 , vital:35613 , https://doi.10.2989/1814232x.2018.1494041
  • Description: Fisheries managers are increasingly promoting catch and release (C&R) as a means to manage recreational fish stocks. Several commonly used output regulations, including bag and size limits, require the mandatory release of captured fishes by anglers. In addition to mandatory C&R, conservation-conscious anglers have adopted voluntary C&R behaviour as a result of the noticeable declines in the populations of many fishery species and this behaviour is becoming increasingly popular among recreational anglers (Cooke et al. 2013a). The combination of mandatory and voluntary C&R behaviour is substantial, as Raby et al. (2014) estimated that 60% of fish captured in global recreational fisheries are released. In South Africa, Cowley et al. (2013) found that a large proportion (mean 74% [SD 7.3]) of the five most-dominant fishery species captured in the Sundays Estuary recreational fishery were released.
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  • Date Issued: 2018

Evaluating the efficacy of Hypogeococcus sp. as a biological control agent of the cactaceous weed Cereus jamacaru in South Africa

  • Authors: Sutton, Guy F , Klein, Hildegard , Paterson, Iain D
  • Date: 2018
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/423350 , vital:72051 , xlink:href="https://doi.org/10.1007/s10526-018-9887-3"
  • Description: We evaluated the efficacy of Hypogeococcus sp. (Hemiptera: Pseudococcidae) as a biological control agent of the cactaceous weed Cereus jamacaru De Candolle (Queen of the Night cactus) in South Africa. This weed has been described as being under complete biological control due to the action of Hypogeococcus sp., although no formal post-release evaluation had been conducted prior to this study. Biological control was associated with significant reductions in fruiting, plant survival and plant densities, while plant population age structures were negatively affected. Weed populations infected by Hypogeococcus sp. were typified by low or non-existent recruitment and are expected to diminish with time. Populations where Hypogeococcus sp. was absent displayed extensive recruitment, and are predicted to expand or self-replace, if left unchecked. These data indicate that Hypogeococcus sp. has a significant negative effect on C. jamacaru at the individual plant and population level, and given sufficient time provides complete biological control over this weed in South Africa.
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  • Date Issued: 2018

Evaluating the impact of energy policies on sustainable development in South Africa

  • Authors: Julius, Ibitoye Oyebanji
  • Date: 2018
  • Subjects: Energy policy -- South Africa , Sustainable development -- South Africa Renewable energy sources -- South Africa Sustainable living -- South Africa
  • Language: English
  • Type: Thesis , Doctoral , DPhil
  • Identifier: http://hdl.handle.net/10948/30440 , vital:30944
  • Description: The unachieved targets of the Millennium Development Goals (MDGs) at the end of 2015 by some developing countries including South Africa, lead to the evolution of the Sustainable Development Goals (SDGs). Ensuring access to sustainable, affordable, and modern energy is one of the 17 SDGs that the countries are expected to achieve before the end of 2030. Green growth is an important strategy for attaining this goal and a pathway to achieving the other goals. Therefore, an empirical study of the impact of energy policies on sustainable development is pertinent. Despite the importance of such research, there exists a gap in the literature relating to green growth and sustainable development from the SDGs point of view. This study fills the existing lacuna by developing an intertemporal holistic model which allows a study of the impact of energy policies on sustainable development in relation to the SDGs. Specifically, this thesis employs the Autoregressive Distributed Lag (ARDL) and Toda-Yamamoto approaches to analyse the long-run relationship and direction of causality respectively between green growth policies and sustainable development in South Africa from 1984 to 2016. This research provides insights into the importance of green growth for factors such as deforestation, fuel exports, energy imports and agricultural development, thus adding to the existing literature on the impact of renewable energy on a country’s social, environmental and economic conditions. Results from the analysis of the long-run relationship between green growth and macroeconomic variables, indicate a positive unidirectional relationship between changes in green growth policies and gross capital formation. This finding suggests that adopting green growth policies leads to increased investments. In contrast, green growth was found to have a negative effect on national income (gross domestic product). However, the Granger causality tests do not establish causality between these variables. Although green growth policies stimulate investments, high start-up costs associated with the implementation of these policies may mean that the resultant higher investments are yet to be translated to higher income levels in the South African economy. The findings indicate a boost in the South African balance of payment within the study period iv iv as evidenced by the positive long-run relationship between green growth policies and fuel exports. Additionally, the results indicate that green growth energy policies have assisted in improving the resilience to international oil price shocks as shown in the negative and significant long-run relationship between green growth and energy imports. With regard to environmental variables, results suggest a substitutability effect between green growth policies and the consumption of non-renewable energy. However, no evidence is found on the impact of green growth policies on the levels of deforestation and carbon dioxide(CO2) emissions, as well as natural resource depletion. In relation to the social variables, adoption of green growth policies was found to lead to improved educational quality, with causality running in both directions. This finding supports the feedback hypothesis. Similarly, green growth policies had a positive impact on agricultural development, again with causality established in both directions. The outcome of the long-run relationship between green energy consumption and unemployment shows that the green growth policies is yet to have a significant impact on unemployment reduction in South Africa. Green growth also has an insignificant and indirect relationship with GDP per capita; this result was affirmed by the absence of causality between GDP per capita and green energy consumption. This research not only makes contributions to the literature on the relevance of green growth policies for achieving economic, social and environmental sustainability, it also suggests possible policy implications which highlight the need for adoption and continued implementation of green growth policies in developing countries such as South Africa.
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  • Date Issued: 2018

Evaluation and identification of microbial contaminants in polyherbal medicines used for the treatment of tuberculosis in Amathole District Municipality, Eastern Cape Province, South Africa

  • Authors: Famewo, Elizabeth Bosede
  • Date: 2018
  • Subjects: Tuberculosis -- Treatment -- South Africa Mycobacterial diseases -- South Africa -- Eastern Cape Medicinal plants -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: http://hdl.handle.net/10353/9680 , vital:34818
  • Description: Tuberculosis is caused by Mycobacterium tuberculosis. The emergence of drug-resistant strains of this organism has become a global public health problem. In the continuing search for effective treatment, polyherbal medicines offer a great hope in the development of alternative drugs for the treatment of tuberculosis. The use of herbal formulations for therapeutic purposes has significantly increased in the developed and developing countries because of their curative property, less toxicity and minimal side effects. However, there is little information on their safety and effectiveness in the literature. To address this, polyherbal medicines used for the treatment of tuberculosis in the Eastern Cape Province of South Africa were evaluated. Ethno-medicinal survey was conducted through semi-structured questionnaires coupled with informal conversations with the herbal sellers in five communities in the study area. Bacterial and fungal DNA was extracted from the polyherbal medicines purchased. A fragment of the bacterial 16S rRNA gene and internal transcribed spacer region of the fungal rRNA operon were amplified with universal primers 27F and 518R, and ITS1 and ITS4 respectively. Following standard procedures, the amplicons were finally run on Illumina’s MiSeq platform. Furthermore, the remedies were screened against Mycobacterium tuberculosis H37Rv using Middlebrook 7H9 media and MGIT BACTEC 960 system. Agar dilution method was used to determine the minimum inhibitory concentration (MIC) of the remedies against eight bacteria and three fungi isolates. The herbal preparations were assayed for their toxicity using hatchability success and larval mortality of Artemia salina Leach. Finally, their nutritive properties were analysed using an inductively coupled plasma optical emission spectrometer for mineral analysis while the vitamins were determined using standardized methods A total of nine polyherbal preparations were collected. The herbs used for the preparation of these remedies belong to 20 families. Apiaceae [5(25 percent)] was the most prominent plant family used, followed by Liliaceae [4(20 percent)], Strychnaceae [4(20 percent)], Rutaceae [4(20 percent)] and Hypoxidaceae [3(15 percent)]. The two most frequently used plants were Allium sativum L. (Liliaceae) and Strychnos decussata (Pappe) Gilg. (Strychnaceae). Rhizomes was the most common parts used, followed by the roots and barks. The herbal medicines were prepared mainly by infusion and decoction. The presences of pathogenic and non-pathogenic bacteria were identified in the polyherbal medicines. Generally, the most common bacteria identified from the samples were Bacillus sp., Enterobacter sp., Klebsiella sp., Rahnella sp., Paenibacillus sp., Clostridium sp. and Pantoea sp. The predominant mycoflora obtained belongs to different genera or species of fungi; these include Alternaria, Candida, Ramularia, Cladosporium, Penicillium, Aspergillus and Malassezia. The susceptibility testing revealed that all the remedies contain anti-tubercular activity against M. tuberculosis H37Rv at concentrations below 50 ug/ml. Seven of the polyherbal preparations showed activity at concentrations below 25 ug/ml. The MIC values exhibited inhibitory activity at 1.562 μg/ml. However, isoniazid showed more inhibitory activity against M. tuberculosis at 0.05 μg/ml when compared to the polyherbal remedies. The inhibitory activity of the polyherbal medicines based on the overall MIC revealed that Hogsback first site (HBfs) and Fort Beaufort (FB) remedies were the most active remedies against the bacterial isolates at the concentration of 2.5 mg/mL. Among the nine herbal formulations, only King Williams Town site A (KWTa) remedy showed activity against Aspergillus niger and Aspergillus fumigatus with the MIC valve of 2.5 mg/mL. While King Williams Town site C (KWTc) and Hogsback third site (HBts) had the highest activity at 1.25 mg/mL against Candida albicans, the remaining remedies were active at 2.5 mg/mL. The percentage hatchability of 44.42 percent, 42.96 percent and 39.70 percent were observed in A. salina cysts incubated with herbal preparations from KWTa, HBfs and HBts respectively. The hatching success of the cysts in these remedies was significantly higher than the positive control (nystatin) and the negative control (sea water) at p < 0.05. The mortality of A. salina nauplii incubated in Alice (AL), King Williams Town site B (KWTb) and KWTc remedies were significantly higher than when larvae were incubated in both controls. Based on Meyer’s index, the LD50 of each polyherbal medicine was between 2.9 and 4.0 mg/ml, the LD50 values greater than 1 mg/ml, an indication that they are not toxic. The polyherbal preparations were found to be rich in vitamins and mineral nutrients. Calcium was the highest macronutrient detected while the lowest nutrient was phosphorus. Iron was the highest micronutrient in the majority of the polyherbal preparations while the lowest value was recorded for copper. Vitamin C was absent in the herbal preparations while vitamin A and E were detected. This study provides significant ethno-medicinal information on polyherbal medicines used for the treatment of TB in the study area. The presence of the identified bacteria and fungi in the herbal formulations is a cause for concern. However, the ability of the remedies to possess activity against Mycobacterium tuberculosis and other pathogenic microorganisms associated with tuberculosis infection makes them potential sources of new antimycobacterial agents. Also, they are rich sources of mineral nutrients, and are as well non-toxic, thus, they are safe for consumption. In view of their anti-tubercular properties, this study has provided a better understanding of the reasons why TB-patients make use of these polyherbal formulations. Also, the study supports the folkloric use of polyherbal medicines in the treatment of tuberculosis in the Eastern Cape Province, South Africa.
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  • Date Issued: 2018

Evaluation of pharmacological properties and anti-neoplastic potentials of pelargonium iquinans and opuntia stricta extracts using acute leukemia cell lines

  • Authors: Izuegbuna, Ogochukwu Osita
  • Date: 2018
  • Subjects: Pelargoniums Medicinal plants
  • Language: English
  • Type: Thesis , Masters , M Sc
  • Identifier: http://hdl.handle.net/10353/10372 , vital:35442
  • Description: Leukaemia like other cancers is a public health issue, and coupled with the issue of drug resistance, toxicity and refractory disease novel treatments both as definitive and supportive care become necessary. The dissertation was designed to evaluate two medicinal plants (Opuntia stricta and Pelargonium inquinans) and their antineoplastic potentials. The phytochemicals analyses were done using standard methods with three different solvents (acetone, aqueous and ethanol). Vitamins analyses was also done using standard methods. The result revealed that vitamin A,C and E were present in the plants. Cell based anti-inflammatory activity were carried out using RAW264.7 macrophages cell, and COX-2 and NO expression as inflammatory markers. Cell based cytotoxicity and antineoplastic activity was investigated using RAW 264.7 macrophages cell, U937 and Jurkat cells. The results of the phytochemical analyses using GC/MS showed that phenols, flavonoids, flavonol, tannin, proanthocyanidin, saponin, alkaloids and phytate were present in these plants. In vitro antioxidant activity was carried out using nitric oxide (NO), alpha, alpha-diphenyl- β-picrylhydrazyl (DPPH), hydrogen peroxide (H2O2), phosphomolybdenum activity, and iron reducing power (FRAP) techniques. The results of the antioxidant activity showed both plants had antioxidant properties that can be attributed to the phytochemical and vitamins contents. The results showed that both plants had anti-inflammatory properties which can also be attributed to their phytochemicals. The GC-MS analysis of the essential oils of both plants showed the presence of monoterpenes, sesquiterpenes, fatty acids, and esters. The results showed that O. stricta extracts have mild cytotoxicity, while P. inquinans have strong cytotoxicity. The cell cycle analysis showed Pelargonium inquinans extracts induced G0/G1 phase arrest and cleaved caspase-3. This study has shown the antineoplastic potential of P. inquinans which may be attributed to some phytochemicals in it such as carophyllene, humulene, beta myrcene and beta pinene.
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  • Date Issued: 2018

Evaluation of Raymond Mhlaba Local Municipality communication strategies in reducing the risk of water-borne diseases outbreak

  • Authors: Animawun, Oluwatosin Tolulope
  • Date: 2018
  • Subjects: Communication in public health Communicable diseases -- Prevention Waterborne infection -- Prevention
  • Language: English
  • Type: Thesis , Masters , MSoc
  • Identifier: http://hdl.handle.net/10353/10531 , vital:35595
  • Description: Health Communication plays an important role in health sustenance. It is cardinal to disease prevention, health promotion and quality of life. Water-borne diseases are known to pose a significant threat to global health and has claimed many lives. This study seeks to evaluate Raymond Mhlaba Local Municipality’s communication strategies employed in reducing the risk of water-borne diseases outbreak in the community. The research method used for this study is mixed method. In-depth interview and questionnaire was used to collect data. The two sampling procedures that were used in this study are purposive sampling for the qualitative aspect of this study and simple random sampling for the quantitative aspect of this study. The conclusion that was drawn from this study is that Raymond Mhlaba (formerly Nkonkobe) Local Municipality makes use of a communication strategy, which is awareness campaign, in educating its people about water-borne diseases and its prevention but the information is limited in its reach. This study recommends that the awareness campaign done by Raymond Mhlaba (formerly Nkonkobe) Local Municipality should be embarked on more frequently because the more the messages are reinforced for a long time, the more the people in the community are able to remember and the greater the likelihood that they will act upon the message. In addition, Raymond Mhlaba (formerly Nkonkobe) Local Municipality should carry out evaluations like this research at least quarterly in order to assess the impact of the awareness campaigns on the Community, which can also be used as a tool to educate the people of Raymond Mhlaba Local Municipality about Water-borne diseases. Finally, social media is a new trend that most people are now into, most especially the youths; Raymond Mhlaba (formerly Nkonkobe) Local Municipality should key into this and educate the public on platforms on social media as it can be seen as a form of reinforcing health information.
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  • Date Issued: 2018

Evaluation of the development and use of the institutional repository by staff and students at the University of Fort Hare in Eastern Cape, South Africa

  • Authors: Kagoro, Kisemiire Christine
  • Date: 2018
  • Subjects: Institutional repositories Information storage and retrieval systems
  • Language: English
  • Type: Thesis , Masters , MLIS
  • Identifier: http://hdl.handle.net/10353/6292 , vital:29556
  • Description: This study sought to evaluate the development and use of Institutional Repository by staff and students at the University of Fort Hare (UFH) in Eastern Cape, South Africa. In this study, staff comprised of academic staff (lecturers) and library staff. The aim of this study was to investigate the development and use of Institutional Repository at UFH. To achieve the objectives, both qualitative and quantitative research methodologies were employed. Data was collected through questionnaires and face-to-face interviews. Purposive sampling technique was used to select the participants of the study. Qualitative data was analysed thematically while, quantitative data was analysed statically by help of SPSS software. The results showed that: library staff and management are aware and provide support for the development and use of the Institutional Repository at the UFH; awareness level of IR among lecturers and students is still low; the infrastructure available for the use of IR is not well developed; and lastly, library users which consist of students and academic staff face various barriers in the use and support of IR development. The study recommended for dynamic training, and marketing of IR through seminars and workshops should be started by expert affiliations and universities administration to advance the idea of IR among the University community. Low levels of awareness of the university repository, funding and shortage of library staff remains an issue and could be addressed by further investigating the effectiveness of different communication channels. It is pertinent that the findings of this study would be useful in various tertiary’s institutions of higher learning across the globe in order to embark on IR.
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  • Date Issued: 2018

Evaluation of the photophysicochemical properties and photodynamic therapy activity of nanoconjugates of zinc phthalocyanine linked to glutathione capped Au and Au3Ag1 nanoparticles

  • Authors: Oluwole, David O , Manoto, Sello L , Malabi, Rudzani , Maphanga, Charles , Ombinda-Lemboumba, Saturnin , Mthunzi-Kufa, Patience , Nyokong, Tebello
  • Date: 2018
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/237886 , vital:50563 , xlink:href="https://doi.org/10.1016/j.dyepig.2017.11.019"
  • Description: We report on the synthesis of glutathione capped gold (AuNPs–GSH) and gold–silver (Au3Ag1NPs–GSH) nanoparticles and their covalent attachment to Zn monocarboxyphenoxy phthalocyanine (1) via amide bond formation. The photophysicochemical properties and photodynamic therapy (PDT) activity of the complex and its nanoconjugates were assessed. The conjugates afforded improved triplet and singlet oxygen quantum yield as well as PDT activity (except for 1-Au3Ag1NPs which afforded decreased activity) in comparison to complex 1.
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  • Date Issued: 2018

Evidence for a new regime shift between floating and submerged invasive plant dominance in South Africa

  • Authors: Strange, Emily F , Hill, Martin P , Coetzee, Julie A
  • Date: 2018
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/423993 , vital:72114 , xlink:href="https://doi.org/10.1007/s10750-018-3506-2"
  • Description: Classical biological control for the management of floating invasive plants has been highly successful in South Africa. However, restoring ecosystem services has been compromised by a new suite of submerged invasive plants. This study proposes that biological control of floating invasive macrophytes acts as a catalyst in a regime shift between floating and submerged invasive plant dominance. Regime shifts are large and sudden changes in the structure and functioning of ecosystems. The proposed shift is driven by the rapid decomposition of floating plants and subsequent increase in availability of nutrients and light. A mesocosm experiment explored the effect of biological control on floating Pistia stratiotes L. (Araceae) upon the growth of invasive submerged Egeria densa Planch. (Hydrocharitaceae), and native submerged plant species of the same family; Lagarosiphon major (Ridl.) Moss (Hydrocharitaceae). The results revealed a cascade effect of biological control of P. stratiotes on the availability of nitrogen, resulting in increased relative growth rates and invasive capacity for E. densa. In contrast, the native L. major could not compete with healthy or damaged P. stratiotes. These findings highlight the vulnerability of South African freshwater systems to submerged plant invasions and demonstrate the importance of a more holistic approach to invasive plant management.
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  • Date Issued: 2018

Evidence for protandry in Polydactylus quadrifilis in the Kwanza Estuary, Angola, and its implications for local fisheries

  • Authors: Butler, Edward C , Childs, Amber-Robyn , Winkler, Alexander C , Milner, Marianne V , Potts, Warren M
  • Date: 2018
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/124451 , vital:35614 , https://doi.10.1007/s10641-017-0699-6
  • Description: A total of 141 Polydactylus quadrifilis were sampled from the Kwanza Estuary in Angola ranging in size from 436 to 1360 mm fork-length (FL). Of these, 124 were male, six intersex and 11 female. Female fish were significantly longer (mm, FL) and heavier (kg) than males and had significantly higher gonadosomatic indices (GSI’s) than those of males and intersex fish. Transitional (intersex) gonads were delimited, with testicular and ovarian regions separated by connective tissue. The first signs of ovarian tissue appeared on the outer ventral surface of the gonad. A second layer of ovarian tissue was first noticeable at either end of the initial ovarian region and developed back towards the centre of the ventral wall to form a luminal space. Early-stage oocytes were commonly found in the outer area of male regions and residual late-stage spermatids and spermatozoa were found in the luminal space of ovarian regions, suggesting a process of sex change from the outside inwards. A loss of male function was noted with increased ovarian prevalence. Based on this evidence it is suggested that P. quadrifilis in the Kwanza Estuary are protandrous. Owing to the reliance of P. quadrifilis on large highly fecund females for egg production, it is likely that they will be sensitive to fishing practices that target larger individuals within the population.
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  • Date Issued: 2018

Ex-offenders' perceptions towards their sexual victimisation during incarceration : a case study of Sinthumule area under Makhado Local Municipality: Limpopo Province

  • Authors: Tshidada, Thifulufhelwi Cedric
  • Date: 2018
  • Subjects: Prisoners--Sexual behavior Criminals--Rehabilitation
  • Language: English
  • Type: Thesis , Masters , Criminology
  • Identifier: http://hdl.handle.net/10353/17771 , vital:41199
  • Description: The study aimed to investigate or to explore offenders’ perceptions on sexual assault within or during their incarceration in Makhado Correctional Centre. For the purpose of this study, the researcher is inclined to use qualitative research method because many it allows respondents to express their feelings. This is phenomenological in the sense that the researcher aimed to describe the experiences of the participants. In an attempt to resolve the research problem, the study embarked on qualitative method to guide the in depth structured interviews questions with the offenders about their experience on sexual assault during their incarceration. The researcher employed the method of field study in data collection in a natural settings or environments. The data collected were based on the research questions to establish the causes and consequences of sexual assaults and reasons why the victims are so lackadaisical in reporting sexual assaults to the authorities. Therefore, this study used the purposive sampling method to select participants. The data collection method for this research is an in-depth structured interview. In-depth interviews were repeated face-to-face between the researcher and participants in order to give the participants an opportunity to establish a better understanding. For the purpose of data analysis this study made use of content analysis which is a recommended method in qualitative study.
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  • Date Issued: 2018

Examination of the capacity of Limpopo water services authorities in providing access to clean drinking water and decent sanitation

  • Authors: Pilusa,Kgoshi Kgashane Lucas
  • Date: 2018
  • Subjects: Municipal water supply Sanitation, Rural
  • Language: English
  • Type: Thesis , Doctoral , D.Admin
  • Identifier: http://hdl.handle.net/10353/13932 , vital:39728
  • Description: This study analysed the capacity of Limpopo Water Services Authorities in providing access to clean drinking water and decent sanitation. The study raised issues of the state of access to clean drinkable water and decent sanitation through the prism of the municipality and the community. Arguably, the provision of water and sanitation services collapsed, at the level of local government, during the Jacob Zuma administration, because of the escalation of violent service delivery protests due to poor administration and management. It was discovered that all Water Services Authorities owe the Department of Water Affairs exorbitant amounts of money, well into the range of millions of Rands. This prompted the Water Boards to issue threats that they would limit the provision of bulk water. Such austerity measures compromised citizens who regularly pay for the services provided; hence, it sparked violent protests. One of the major drawbacks of the current institutional arrangements arose from the overlapping mandates of the Department of Water Affairs, Cooperative Governance and Traditional Affairs, Water Services Authorities, Local Municipalities and the Department of Human Settlements. Consequently, the structural design of the intergovernmental system should enforce synergy between all water and sanitation units. The reports produced by all units must be scrutinised, debated and followed through. The study was anchored in a qualitative research design, grounded in the descriptive approach. Interviews were conducted to acquire information from politicians, administrators and community members. It was discovered that there were no skilled personnel in Water Services Authorities and Water Service Providers and, as such, institutional capacity was in disarray. More importantly, during the interviews conducted for this study, it surfaced that financial mismanagement in all municipalities is conspicuously unacceptable, especially unauthorised, irregular and fruitless expenditures. These situations prevailed under the supervision of the well-established oversight institutions that were tasked to enhance the monitoring and evaluation for good governance, such as The Auditor General of South Africa, the Human Rights Commission and the Public Protector. Professionalism and quality performance remain at a low point, with no improvement in service provision. Therefore, radical enforcement of monitoring and evaluation through Auditor General of South Africa, Human Rights Commission and Public Protector, amongst others, is critical to any attempt to disrupt the status v quo. In addition, the appointment of the heads of these oversight institutions must be removed from the Presidency and be made by the Chief Justice. The encounters confronting Water Services Authorities and Water Service Providers are complex and may not be resolved by the government alone, without the participation of the private sector and other actors such as Civil Society Organisations, the business community and public entities. Therefore, an area for further research could be an examination of attempts to introduce effective integrated water and sanitation governance structures, and monitoring and evaluation mechanisms, under robust public scrutiny in order to inform immediate and long-term interventions.
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  • Date Issued: 2018

Examinee invariant condition of test score equating : the case of school certificate examination in computer studies for examinees across rural and urban areas of selected secondary schools in Malawi

  • Authors: Phiri, Gerson Mutala
  • Date: 2018
  • Subjects: Educational tests and measurements -- Malawi Computer studies -- Malawi -- Examinations Malawi School Certificate of Education
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: http://hdl.handle.net/10353/8507 , vital:32853
  • Description: This study examined the invariant condition of equating test scores of examinees for the Malawi School Certificate of Education (MSCE) Computer Studies test across rural and urban areas of Zomba District in Malawi. Equating of test scores to create comparable and interchangeable scores in assessment is increasingly becoming popular to most examining bodies. However, the Malawi National Examinations Board (MANEB) and many other examining bodies in Africa and Europe do not embrace test score equating in their assessment systems. The consequences of not equating test scores have not been clearly documented. Furthermore, there are no proper equating designs for some agencies to employ because they administer tests annually to different examinee' populations and they disclose all items after each administration. Therefore, the study sought to establish whether the invariant condition of equating test scores of examinees holds for the Malawi School Certificate of Education (MSCE) Computer Studies test across rural and urban areas of Zomba District in Malawi. Data were collected through two Computer Studies tests which were administered to a sample of rural and urban examinees. The data were analysed using means, standard deviations, T-tests and Statistical Package for the Social Sciences (SPSS). The study revealed that score distributions and test difficulties were similar across test forms signifying that test score equating is necessary. The classification of examinees into rural and urban geographical areas across the test forms were different before score equating, but similar after score equating. The equating of scores for the two sub-populations of rural and urban examinees displayed similarities in their Standard Error of Equating (SEE) values but they were not the same. The equated scores for rural examinees displayed more equating errors than the equated scores of urban examinees, indicating a better performance in Computer Studies by urban examinees than the performance of rural examinees. The study further revealed that equating of test scores was necessary because it was almost impossible to construct multiple forms of a test that were completely parallel. Even though test developers use the same test specifications to develop test items and make every effort to develop items in one test form as similar as possible to the items in another test form, the study has shown that there is no guarantee that the difficulty levels of the items would be the same. Among the many recommendations made, one major one is that the Malawi National Examinations Board (MANEB) should embrace the practice of equating test scores to improve fairness of decisions which are made on examination results.
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  • Date Issued: 2018

Examining factors influencing the academic performance of grade 12 learners in English language : a study of four schools in the Oshikoto Region of Namibia

  • Authors: Limene, Tobias
  • Date: 2018
  • Subjects: English language -- Study and teaching -- Namibia Teachers -- Training of -- Nambia Language and education -- Namibia
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: http://hdl.handle.net/10353/9566 , vital:34792
  • Description: This study examined factors that influence the academic performance of Grade 12 learners in English Language (L 2) in the Oshikoto Region. The theoretical framework that underpinned and guided the present study was the Systems Theory of von Bertalanffy (1930), supplemented and complemented by the School Context Model of Bascia (2014). These helped me to understand how the school context shapes core processes of teaching and learning. The study sample consisted of four principals, eight parents, eight teachers and thirty two learners who were purposively sampled from four selected secondary schools. The study was anchored in the pragmatic paradigm and it adopted the mixed methods research approach. Data collection instruments consisted of questionnaires, semi-structured interviews and focus group discussions. Major findings were that, both Grade 12 English Language (L 2) teachers and learners lack English Language proficiency. This was due to lack of exposure to the English Language. The study also noted lack of learning materials in both school and the home. Major recommendations were that schools (principals) should expose both teachers and learners to English Language by coming up with policies that make it mandatory for teachers and learners to use English while at school. Teachers should also actively involve learners in their learning by using methods such as debates and drama. The study also recommended that the Ministry of Education, schools and parents work together to provide adequate reading materials for learners. For future research, the study recommended an in-depth qualitative study to test the findings of the present study.
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  • Date Issued: 2018

Examining the long-run equilibrium between South African and United States markets

  • Authors: Meyiwa, Zenande Mandilakhe
  • Date: 2018
  • Subjects: Equilibrium (Economics) -- Mathematical models , Economics -- Mathematical models Macroeconomic studies Stock exchanges -- South Africa
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: http://hdl.handle.net/10948/22692 , vital:30058
  • Description: The objective of this study is to examine the long-run equilibrium between the markets of South Africa and the United States of America (USA). To achieve this, the study reviews theoretical literature that examines the link between stock market returns, the real effective exchange rate and interest rates. Furthermore, the study provides a review of previous empirical literature. In addition, the study estimates a number of time series econometric techniques to examine the equilibrium between the four variables. The study estimates: The Johansen co-integration test, the Granger causality test in the VAR system; the Impulse Response Function, as well as the Forecast Error Variance Decomposition. The period under review is January 1996 to January 2016. The Granger Causality test revealed that there is a one-way causality from interest rates to the JSE ALSI (South African stock exchange) and the Russell 3000 index (USA stock market indicator), and a unidirectional causality that runs from the Russell 3000 to the real effective exchange rate. Furthermore, the study found that the real effective exchange rate Granger causes interest rates. The results for the Generalised Impulse Response Function and the Forecast Error Variance Decomposition underscore the findings of the Granger Causality test. In addition, the Generalised Impulse Response Function and the Forecast Error Variance Decomposition revealed that each variable experiences a very large response from its own shock. Since interest rates have an influence on stock market returns, the study recommended that companies listed on the JSE should develop appropriate debt management policies that will ensure cash flows are not affected when interest rates rise. The Rand/US Dollar exchange rate and US Stock market movements do not have a material effect on the JSE ALSI performance, therefore, the study recommended that the JSE can be marketed to international investors as a relatively safe market for international portfolio diversification. Lastly, South African businesses, along with local and international investors, should constantly monitor developments on the real effective exchange rate since they have an effect on interest rates.
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  • Date Issued: 2018

Expanding the SAR of Nontoxic Antiplasmodial Indolyl-3-ethanone Ethers and Thioethers:

  • Authors: Lunga, Mayibongwe J , Chisango, Ruramai L , Weyers, Carli , Isaacs, Michelle , Taylor, Dale , Edkins, Adrienne L , Khanye, Setshaba D , Hoppe, Heinrich C , Veale, Clinton G L
  • Date: 2018
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/164389 , vital:41114 , DOI: 10.1002/cmdc.201800235
  • Description: Despite major strides in reducing Plasmodium falciparum infections, this parasite still accounts for roughly half a million annual deaths. This problem is compounded by the decreased efficacy of artemisinin combination therapies. Therefore, the development and optimisation of novel antimalarial chemotypes is critical. In this study, we describe our strategic approach to optimise a class of previously reported antimalarials, resulting in the discovery of 1-(5-chloro-1H-indol-3-yl)-2-[(4-cyanophenyl)thio]ethanone (13) and 1-(5-chloro-1H-indol-3-yl)-2-[(4-nitrophenyl)thio]ethanone (14), whose activity was equipotent to that of chloroquine against the P. falciparum 3D7 strain.
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  • Date Issued: 2018

Experience of abuse: why wives do not leave

  • Authors: Makhananda, Phakama
  • Date: 2018
  • Subjects: Abused wives -- South Africa , Family violence , Abused women -- South Africa
  • Language: English
  • Type: Thesis , Masters , Social Work
  • Identifier: http://hdl.handle.net/10353/10625 , vital:35645
  • Description: The focus of this study is to investigate factors that cause women to remain in abusive relationships. It has also focused on investigating the experience of abuse, the consequences of abuse and the support that women desire during their time of abuse. Domestic violence against women in South Africa and globally has been increasing by the day. In 2017 there has been more than ten reports of women who have been battered by their partners in South Africa and they were reported dead, therefore the aim is to focus on investigating the reasons why women stay in abusive relationships. The research approach for the study was qualitative in nature. The study adopted snowball sampling as the sampling technique for the study and ten women who have left their partners for two years or longer were interviewed. Interviews were conducted at Living Waters Victim Empowerment Centre in East London and the data was analysed using Interpretative Phenomenological Analysis. The key finding of the study is that financial dependency, culture and children play a major role for women to stay in abusive relationships. All ten participants who were interviewed were aware that they were being abused, however, they used unemployment, children, culture and love for their partners as their reasons for remaining in abusive relationships. The study found that women have been affected physically, emotionally and psychologically by the abuse which has negatively impacted their daily functioning. 4 This study also discovered that if women receive family support during their time of abuse, they will be able to make informed decisions and leave their abusive partners. One of the recommendations of the study is that women should be encouraged to expose the abuse they are enduring through campaigns and workshops. They should also be taught skills that will assist them to escape abusive partners. There is also a need for educational programs that will focus on men and the impact of domestic violence on women and children.
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  • Date Issued: 2018

Experience-based lessons from males in the northern areas of Port Elizabeth on factors that has protected them from becoming involved in gangsterism

  • Authors: Davids, Desira Julie-Anne
  • Date: 2018
  • Subjects: Gang prevention -- South Africa -- Port Elizabeth , Youth -- South Africa -- Port Elizabeth -- Social conditions , Social work with youth -- South Africa -- Port Elizabeth
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: http://hdl.handle.net/10948/21994 , vital:29810
  • Description: Limited research exists, both internationally and in the South African context, on factors protecting community members from becoming involved in gangsterism. This phenomenon has been found to be more prevalent in so-called ‘coloured’ communities and predominantly amongst males. Existing research on gangsterism mainly focus on the history and origin of gangsterism, risk factors that cause certain youth to be more vulnerable in becoming involved in gangs, and specific interventions aimed at curbing the phenomenon. The proposed study therefore aimed to explore and describe the experience-based lessons from selected males on factors that have protected them from becoming involved in gangsterism. The study employed a qualitative research approach that was explorative, descriptive and contextual in design. Participants were chosen through a purposive sampling technique and data was collected using semi-structured interviews. The trustworthiness of the research process and the findings was enhanced by employing a variety of data verification strategies. The study utilised the Ecological Systems and Resilience models as theoretical lenses. The study found that the benefits of family support, influence of faith or religion, positive role models and opportunities for furthering one’s education could be cited amongst the factors that protected participants from becoming involved in gangsterism. Amongst the recommendations of the study was lobbying for tertiary education specifically for young boys from previously disadvantaged communities plagued by social ills such as gangsterism, the restoration of disintegrated family units through the assistance of professionals, as well as the restoration and strengthening of the role of spiritual leaders in their involvement in the moral regeneration of communities. It is anticipated that findings of this study will be helpful in understanding the factors that protected males from becoming involved in gangsterism and make recommendations on how these protective factors could be strengthened so as to prevent more males from becoming involved in gangsterism.
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  • Date Issued: 2018

Experiences and mentoring needs of novice nurse educators at a public nursing college in the Eastern Cape

  • Authors: Sodidi, Khanyisa Annelice
  • Date: 2018
  • Subjects: Nurse educators -- South Africa -- Eastern Cape , Nursing -- Study and teaching -- South Africa -- Eastern Cape College student development programs Nursing students
  • Language: English
  • Type: Thesis , Masters , MCur
  • Identifier: http://hdl.handle.net/10948/23175 , vital:30450
  • Description: The nurse educator role is challenging to novice nurse educators and even more so when mentorship is lacking or ineffective. Novice nurse educators who enter the academic world are expected to demonstrate knowledge of both the clinical and classroom environment. Such an expectation creates role strain, stress and frustration. Mentorship has proved to make this entry easier. There appears to be a lack of mentorship for newly-appointed nurse educators in most schools and/or departments of nursing at higher education institutions in South Africa. This phenomenon prompted the researcher to investigate the experiences and mentoring needs of novice nurse educators with the goal of making recommendations on the mentorship of novice nurse educators. A qualitative, exploratory, descriptive, contextual design and phenomenological approach was used to explore and describe the experiences and mentoring needs of novice nurse educators at a public nursing college in the Eastern Cape. Purposive sampling of nurse educators with less than five years’ experience at a public nursing college in the Eastern Cape, South Africa and with no experience, or less than one year’s previous experience as a nurse educator at any other nursing education institution (NEI) was used. Data was collected using face-to-face, semi-structured individual interviews and unstructured observations. Sixteen in-depth, semistructured interviews that were digitally recorded provided saturated data that was then transcribed verbatim. To ensure that the study was trustworthy, the researcher used Guba and Lincoln’s criteria, namely: credibility, confirmability, dependability and transferability. Ethical standards were maintained throughout the study as the researcher complied with the ethical principles: respect for persons, beneficence and justice. Tesch’s method of thematic analysis was used by the researcher and the independent coder to analyse data and to draw meaning from the content. The five themes that emerged from the data were: novice nurse educators experience challenges related to theoretical mentoring; novice nurse educators experience challenges related to clinical mentoring; novice nurse educators experience a lack of orientation; novice nurse educators experience a lack of resources and novice nurse educators provide recommendations in order to optimise the experience and performance of the novice nurse educators in their first year of teaching at a nursing college. The results of the study reveal that novice nurse educators have reservations about their experiences. Their insights on how their mentoring needs could have been realized were incorporated into recommendations for the mentoring of novice nurse educators. These recommendations can be adopted at local, provincial, and national levels.
  • Full Text:
  • Date Issued: 2018
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