Showing items 141 - 160 of 223

Your selections:

Optimising the uptake of [𝐈𝐫𝐂𝐥𝟔]𝟐− by a diammonium resin: HCl effect and resin performance

  • Authors: Ngayeka, Mbokazi Zizipho
  • Date: 2021-04
  • Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/54089 , vital:46284
  • Description: The separation of [IrCl6]2- from [RhCl5(H2O)]2- by silica microparticles functionalized with 1,10-diamindecane (C10) and quaternized with 4-nitrobenzylchloride (NO2Benz) in various hydrochloric acid mediums was investigated by continuous column studies. The sorbent materials were synthesized using three different routes: Synthesis route 1 (NaI catalyzed synthesis of diammonium functionalized silica microparticles), Synthesis Route 2 (via silylazation of silica followed by functionalization) and Synthesis Route 3 (silane-based sorbent material). The functionalized sorbent materials were characterized by NMR, Microanalysis, SEM-EDS, FT-IR, TGA and BET surface area. The separation efficiency of the quaternary diammonium cations was investigated under dynamic flow adsorption conditions. Preliminary ICP-OES runs were done, at 6 M HCl, to assess which synthesis route gave the best performing sorbent material. [IrCl6]2- selectivity of the sorbent materials was achieved by washing with an HCl solution to remove unadsorbed metal species, then stripping off the [RhCl5(H2O)]2- with 0.05 M of sodium chlorate and the iridium species was eluted with a 20% HCl solution. From the preliminary ICP-OES, loading capacities were calculated, and it was observed that the three sorbent materials from synthesis route 2 (13.89 mg/g for (4) SSC10NO2Benz-A, 1.44 mg/g for (5) SSC10NO2Benz-HoA, and 1.0859 mg/g for (6) SSC10NO2Benz-DoA) showed the highest uptake of [IrCl6]2- and route 1 (1.89 mg/g for (1) SSC10NO2Benz-A, 1.25 mg/g for (2) SSC10NO2Benz-HoA and 0.99 mg/g for (3) SSC10NO2Benz-DoA ) and Route 3 (0.55 mg/g for (7) SC10-AI and 0.755 mg/g for (8) SC10-ACl) materials did not perform efficiently enough, thus were not used further for the HCl study. Within synthesis route 2, three sorbent materials were evaluated, which had varying quantities of the cation: SSC10NO2Benz-A (having a quantity previously used in our research and denoted A), SSC10NO2Benz-HoA (having a quantity Half of A) and SSC10NO2Benz-DoA (having a quantity double of A). SSC10NO2Benz-A showed the highest loading capacity than SSC10NO2Benz-HoA and SSC10NO2Benz-DoA; HCl studies were carried out using SSC10NO2Benz-A. HCl solution having different concentrations (5, 5.5 , 6 , 6.6 and 6.8 M) were used to prepare the metal solutions. This was done to assess which HCl concentration gave the best metal solution containing high amounts of [IrCl6]2- and [RhCl5(H2O)]2-, which would result in a more efficient separation. An auto titrator was used to standardize the HCl concentrations, and the metal ion chloride species solutions were determined by UV-Vis, and their concentrations were confirmed with ICP-OES. Column sorption of iridium and rhodium on SSC10NO2Benz-A using these HCl solutions was carried out, and loading capacities of [IrCl6]2- were obtained. The loading capacities of the 5 M, 5.5 M, 6 M, 6,6 M and 6.8 M HCl solutions for [IrCl6]2- were 2.64, 4.01, 13.89, 18.15 and 7.23 mg/g, respectively. The optimum separation conditions were thus determined by investigating effective parameters such as the method of synthesis, silica to cation ratio, HCl concentration and flow rate. This thesis presents quaternary diammonium sorbent materials that could be applied in feed solutions from ore processing for iridium recovery. , Thesis (MSc) -- Faculty of Science, School of Biomolecular and Chemical Sciences, 2021
  • Full Text:
  • Date Issued: 2021-04

Participatory mapping of cultural ecosystem services in the Mountain Zebra National Park, South Africa

  • Authors: Mpapane, Nelsiwe Pertunia
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Nature--Effect of human beings on--South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52103 , vital:43432
  • Description: Cultural ecosystem services (CES) are an essential part of human well-being. CES characterize the intangible connections that people have with their surrounding environments, and act as vessels to facilitate the understanding of meaningful and respectful relationships between humans and nature, which are necessary for sustainability. However, CES render themselves as complex cultural dimensions that are difficult to connect to specific aspects of an ecosystem, or to measure and manage. Thus, a progressive approach is required for promoting effective management of CES within landscapes. This thesis endeavours to understand human─nature interactions in protected areas, the CES benefits that arise from such interactions, and the links of these to ecosystems, facilities or features within the landscape. Protected areas represent some of the last remaining intact ecological areas that support biodiversity conservation and human─nature experiences. Protected areas, such as the Mountain Zebra National Park, are therefore suitable study sites to cast light on: (a) how human─nature relationships manifest in parks, (b) which CES are experienced by visitors, (c) which landscape features are associated with CES benefits, (d) who visits the Park, and (e) how the delivery and/or accessibility of CES to visitors of the Park could be improved. My research involved qualitative and spatial elements as forms of enquiry over a period of six months of data collection. I used semi-structured interviews (n = 20) paired with a participatory mapping approach. Additionally, I performed a comparative analysis using a peer-reviewed paper that focused on the management perspectives of CES delivery, to seek out similarities and differences between management perspectives and actual visitor experiences. The findings of this study have outlined that the Mountain Zebra National Park offers significant benefits to visitors. Aesthetic, recreational, inspirational value and cultural heritage emerged as the most frequently mapped CES. The findings have also shown that CES benefits are widely distributed across the landscape, with a spatial correlation in hotspot areas. Moreover, amenities or built infrastructure such as picnic iii sites, camping areas and viewpoints within the Park, are crucial for strengthening social relationships among family and friends, as well as in aiding the delivery of CES. This study provides insights into the subjective and diverse ways that human─nature relationships translate into CES benefits. It also sheds light on the importance of adequate planning within protected areas, for the maximization of the benefits from CES to people without compromising the mandate of biodiversity conservation. This study also contributes to a growing body of evidence that documents human─nature interactions in, and non-material benefits acquired from, protected areas within South Africa. I further advocate for improved access, adequate infrastructure, awareness creation and strategies to attract the younger generation to the national parks of South Africa. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2021
  • Full Text: false
  • Date Issued: 2021-04

Performance management system at a public development corporation: success factors and challenges

  • Authors: Saki, David Siphosethu
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's , text
  • Identifier: http://hdl.handle.net/10948/52935 , vital:44733
  • Description: Public sector organisations often lack effectiveness in the implementation of an organisational strategy and seek out means of utilising a performance management system to ensure the productive implementation of its strategy (Auditor General South Africa, 2017). Therefore, it is important for organisations to utilise tools and techniques to ensure that the performance management system is efficiently implemented. Performance management is defined as a strategic and integrated approach aimed at delivering sustained success by using tools and techniques to improve the performance of people by developing the capabilities of teams and individual contributors (Armstrong, 2006). The main purpose of the study was to identify success factors that contributed to the effective implementation of a performance management system and then determine the extent to which these factors have been successfully incorporated in the performance management system at the CDC. The literature review was conducted, highlighting the process of performance management, tools and techniques, success factors and challenges in order to effectively implement a performance management system. In this study, a positive correlation between the PM purpose, success factors and tools revealed that the various success factors in relation to systems, resources, staff and measurement linked with the PM purpose. In addition, it was also revealed that the human resources component was considered as very important in driving an effective performance management system. , Thesis (MA) -- Faculty of Business and Economic Sciences, Human Resources Management, 2021
  • Full Text:
  • Date Issued: 2021-04

Presidential accountability for cabinet appointments in South Africa

  • Authors: Phorego, Molefhi Solomon
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Executive power--South Africa
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/51212 , vital:43228
  • Description: The President’s power to appoint cabinet members in South Africa constitutes an essential part of the country’s constitutional framework. It is a discretionary power exercised by the President in his capacity as Head of State bestowed on him by the Constitution, which underpins cabinet appointments.The underlying debates in relation to the President’s power to make cabinet appointments lie between justiciability and non-justiciability. In this respect, there are two schools of thought regarding the question whether the exercise of such a power may be the subject of a judicial inquiry, and if so, to what extent. This thesis provides insight into the nature and origin of the President’s power to appoint cabinet members. It also delves deeply into issues raised by the doctrine of separation of powers surrounding the exercise of this power. The core focus of the thesis is on the extent to which the President can be held accountable for making cabinet appointments. The main argument advanced is that because South Africa is a country founded on the principles of constitutional supremacy and the rule of law, every exercise of public power should be subject to the Constitution, including the President’s power to appoint cabinet members. The determination of whether public power is in line with the dictates of the Constitution calls for an independent judiciary, with the power to rule on any aspect of societal disputes. In pursuit of the above, the thesis analyses the constitutional provisions and case law relevant to the President’s powers as Head of State. The research highlights, amongst others, the President’s duty to give reasons for cabinet appointments. On this point it is submitted that the President does have the constitutional obligation to give reasons for cabinet appointments. Comparisons with other jurisdictions on cabinet appointment processes and oversight mechanisms regarding the exercise of that power form the backdrop against which recommendations are made in the thesis. Proposals are advanced for increased legislative oversight in cabinet appointments. Such oversight should focus on inter alia, the President’s duty to furnish reasons for cabinet appointments. The thesis also proposes a constitutional framework in terms of which Parliament plays a role in the selection of appointees to cabinet. The rationale behind this recommendation is the minimising of instances in which the judiciary is accused of overreaching on the powers of the political organs of government. The courts should, however, still retain the power to pronounce whether both the President and Parliament have fulfilled their relevant constitutional obligations in relation to the process of cabinet appointments. , Thesis (PhD) -- Faculty of Law, Public Law, 2021
  • Full Text:
  • Date Issued: 2021-04

Prospect of an adquisitorial criminal justice system

  • Authors: Mpofu, Mputumi
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Bail--South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/51186 , vital:43231
  • Description: Bail does not cease to be a mind boggling issue as it is challenging our courts on daily basis, hence the need for this research. The tendency of confusing on the role of presiding officers in our legal fraternity is so far as bail proceedings is concerned is growing by the day. The seems to be a tug of war between prosecutors and attorneys with regard to granting of bail for the arrested persons, which leads to judicial officers having to sit for bail applications. Some of these challenges are as a result of interpretation of legislation that governs the issue of bail which is primarily peremptory in nature. , Thesis (LLM) -- Faculty of Law, Criminal and Procedural Law, 2021
  • Full Text: false
  • Date Issued: 2021-04

Psychological capital and burnout in the financial service sector

  • Authors: Muller, Nadia
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52990 , vital:44872
  • Description: The purpose of this research study was to determine the relationship between PsyCap and burnout in a service-related working environment that is somewhat unexplored, including the non-banking financial services sector. To achieve this purpose, a correlational research design was employed and the convenience, non-probability sampling method was utilised as the technique for sourcing participants. Data was collected by way of an online survey comprising of the PCQ-24, OLBI and a Biographical Section, which was distributed among 380 non-banking employees in the sample company, and a final sample size of N=88 was achieved. The two psychometric instruments utilised were both proven to be valid and reliable, thus increasing the credibility of the data obtained. The raw data was processed and analysed through statistical calculations, performed by a qualified Statistician, and included descriptive and inferential statistics in the form of cronbach’s alpha coefficients, pearsons correlations, t-tests, ANOVA’s, and linear regression for the data interpretation. The results revealed that there was a negative, statistically significant relationship between PsyCap and burnout, and that PsyCap explained 18% of the variance in burnout scores amongst the sample. In addition, statistically significant differences were found between burnout, disengagement, and position, as well as between PsyCap and some of its dimensions with gender, educational level, position, and department in terms of the demographic variables. The researcher has considered the ethical principles of autonomy, confidentiality, anonymity, and ownership of the data throughout the research process, and the research paper was submitted for assessment and ethical approval before commencement of this study. The primary aim of this research study was achieved in that a significant and negative correlation between PsyCap and burnout was revealed. , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Industrial Psychology and Human Resources, 2021
  • Full Text: false
  • Date Issued: 2021-04

Recreating a wetland at an abandoned saltworks : towards a rehabilitation plan

  • Authors: Wasserman, Johan
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52146 , vital:43450
  • Description: A saltworks at Swartkops Estuary was abandoned in 2018. While operational, the saltworks hosted some of the largest breeding colonies of several shorebird species in southern Africa and hosted thousands of Palearctic migrant waterbirds annually. The abandonment of the saltworks has resulted in the loss of the artificially managed hydrological regime and therefore the wetland function and habitat value of the site, and the rich and diverse avifauna that once occurred at the site have not returned. The rehabilitation of the saltworks as a wetland that functions as a waterbird sanctuary is currently being organised, and this research aimed to create a plan for implementing and monitoring the rehabilitation. In order to do so, the baseline environmental condition of the abandoned saltworks was established, the possible rehabilitation interventions necessary for rehabilitating the site were assessed, and the potential ecological implications of any interventions were investigated. The assessment of the saltworks’ baseline condition revealed that the site is now characterised by vast expanses of dry hypersaline sediment with sparse patches of monospecific vegetation and depauperate avifauna. The once rich and diverse waterbird communities have all but disappeared since the site was abandoned and are unlikely to return unless a managed hydrological regime is reinstated. Furthermore, it is improbable that salt marsh vegetation will cover the abandoned saltworks primarily due to the high sediment salinity that will persist unless the saltpans are flooded. The area will likely remain barren with little ecological value if no rehabilitation action is taken. Two potential rehabilitation options for reinstating a hydrological regime at the saltworks were identified: (1) pumping estuary water into all of the saltpans; or (2) pumping estuary water into some of the saltpans, while allowing the largest one to be filled with stormwater. Both options were deemed to be feasible; however, the second option will likely have lower running costs. The use of stormwater to fill the one saltpan is expected to result in brackish conditions initially, while the saltpans filled with estuary water would have salinity levels ranging from euhaline to slightly hypersaline. Both the stormwater and estuary water are rich in inorganic nutrients – the estuary water is rich in both dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP), while the stormwater has an exceptionally high DIN content. This raised concerns of creating eutrophic wetlands with detrimental conditions such as algal blooms and a hypoxic water column. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2021
  • Full Text: false
  • Date Issued: 2021-04

Review of the rehabilitation and integration of offenders

  • Authors: Darries, Share-Leigh
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Criminals--Rehabilitation--South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/51199 , vital:43219
  • Description: “It is said that no one truly knows a nation until one has been inside its jails. A nation should not be judged by how it treats its highest citizens but its lowest ones – and South Africa treated its imprisoned African citizens like animals”.1 The constitutional mandate to ensure the successful rehabilitation and reintegration of offenders into society, upon eventual release falls on the South African Department of Correctional Services (DCS).2 In terms of this mandate, the Department is encumbered with the responsibility to develop programmes which not only addresses criminal conduct but results in the eventual drop of recidivism rates.3 Notwithstanding the Department’s inordinate efforts to discharge its constitutional mandate, recidivism rates continue to be on the rise.4 Built to digress from innate retributive traditions and the concept of punishment, the Department of Correctional Services proffered to alter our realities through the creation of an environment which essentially births different behaviours.5 A task rendered unattainable, as inordinate efforts become frustrated by the realities of prisons and the myth of rehabilitation. Despite having one of the most progressive criminal justice systems in the world, obstinate challenges in South African prisons and an overwhelming prison population make managing and translating its policies into practice all the more difficult.6 With high crime and recidivism rates inundating an already saturated criminal justice 1 Mandela Long Walk to Freedom: The Autobiography of Nelson Mandela (1994) 174-175. 2 Murhula and Singh “A Critical Analysis on Offenders Rehabilitation Approach in South Africa: A Review of the Literature” 2019 12 African Journal of Criminology and Justice Studies 21 21. 3 Ibid. 4 Ibid. 5 Department of Correctional Services “White Paper on Corrections in South Africa” (November 2004) (Republic of South Africa, Minister of Correctional Services)” http://wwww.dcs.gov.za/wpcontent/uploads/2016/08/WHITE-PAPER-8.pdf (accessed 2019-05-6) 5; Wainio “Inside the World’s Toughest Prisons season 3 premiere recap: Costa Rica: Prison on a Knife-Edge” https://www.google.co.za/amp/s/showsnob.com/2018/12/24/inside-the-worlds-toughest-prisonsseason-3-premiere/amp (accessed 2019-05-6). 6 McAree “Prisoner Rehabilitation in South Africa: A case study of Phoenix Zululand’s work in Eshowe Correctional Facilities” 2011 School for International Training 7. ix system, and exposure of minor offenders to hardened criminals become all the more common,7 the vision of translating every offender who walks through the prison gate into corrigible and law-abiding citizens8 become a far-kept dream. Instead, South African prisons become nothing but breeding grounds of criminality, 9 and temporary vessels of human right violations, as an inmates try to come to terms with the fact that their eventual release into society is met with ostracization, destabilized community relations and collateral consequences.10 Since offenders are usually detained for long periods on remand, prisons are innately prevented from becoming correctional centers despite this being a stated aim in the White Paper on Corrections.11 Against this backdrop, the researcher proffers to broaden the perpetual desire to construct a transformed and developed system; one which charts a course from innate retributive traditions to one which births rehabilitated offenders into society. Mindful of the obstinate penal system which undeniably perpetuates colonial structures through dichotomization, this treatise offers an altered reality, a system which respects and promotes the values and rights enshrined in the Constitution of the Republic of South Africa.12 , Thesis (LLM) -- Faculty of Law, Criminal and Procedural Law, 2021
  • Full Text: false
  • Date Issued: 2021-04

Rheology behaviour of slurries as a function of particle size and ion concentration

  • Authors: Kondlo, Princess Kholiwe
  • Date: 2021-04
  • Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/53333 , vital:45141
  • Description: In this work, the rheological properties of alumina slurries milled to different particle sizes were investigated. Viscosity increases as the particle size decreases. When increasing amounts of calcium hydroxide, strontium hydroxide or barium hydroxide are added, the viscosity first goes down and then goes up. This can be explained in terms of changes in pH and changes in ionic strength impacting on the surface potential of the particles in suspension. Adding the same concentration of different cations results in different viscosities, with the order being (from high to low viscosity) Ba>Sr>Ca. Effects of partial dissolution of and structural changes to the alumina particles at high pH cannot be excluded. In order to better understanding the different effects, it was attempted to measure the zeta potential of the slurries at different pH values. This resulted in highly positive zeta potential values over the complete pH range, without the observationof an iso-electric point. This does not fit to the observed changes in rheology and contrasts withliterature data. One explanation would be that the measurement system used is unsuitable to yield correct zeta potential values for the materials under investigation. , Thesis (MSc) -- Faculty of Science, Department of Chemistry, 2021
  • Full Text:
  • Date Issued: 2021-04

Score driven volatility models based on skewed-t distributions

  • Authors: Janse van Rensburg, Stéfan
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , GARCH Model
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/52010 , vital:43425
  • Description: Score driven (SD) conditional volatility models allow for rich volatility dynamics and realistic distributional assumptions. These models link the evolution of time-varying volatility to the shape of the predictive density, which often results in models that are robust against outliers. These models also allow for conditional skewness. The combination of skewness and robustness may improve in-sample fit, conditional volatility forecasts and tail-risk forecasts. Therefore, this study proposes novel SD conditional volatility models with Skewed-t distributed innovations. For some of these models, the formof skewness partially negates robustness against outliers. This result demonstrates that the formof skewness requires careful consideration in the specification of SD conditional volatility models. The study also expands upon earlier observations that the assumption of negative conditional skewness may induce a form of volatility asymmetry in SD conditional volatility models that is incompatible with the leverage effect typically observed in equity markets. A simulation experiment shows that neglected leverage, therefore, biases maximum likelihood estimates. Additionally, the study considers SD conditional volatility models that account for leverage effects and have Skewed-t distributed innovations. An empirical application to the daily Johannesburg Stock Exchange (JSE) / Financial Times Stock Exchange (FTSE) All Share Index returns demonstrates the utility of SD conditional volatility models with Skewed-t distributed innovations. Extensions of these models that account for leverage prove competitive with more traditional conditional volatility models in terms of in-sample fit and tail-risk forecasts. These results suggest that the models considered in this study are useful within the context of financial risk management. , Thesis (PhD) -- Faculty of Science, School of Computer Science, Mathematics, Physics and Statistics, 2021
  • Full Text: false
  • Date Issued: 2021-04

Smart factory adoption for a dairy factory in South Africa

  • Authors: Rudman, Richard
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52963 , vital:44895
  • Description: Smart Factories are a key component of Industry 4.0 and have over the last few years become a relevant topic in manufacturing across all industries. The dairy industry is no different and many of the leading dairy manufacturers have adopted many Smart Factory components and technologies. These Smart Factory components and technologies have led to change in the workplace compared to the traditional way of manufacturing. With any organisational change, it is important to consider the impact that it has on the employees of the organisations and what their attitudes and perceptions towards these changes are. When understanding employees’ attitude and perceptions of changes or factors with regard to technological changes in the workplace, organisations can manage and improve the adoption of Smart Factory Adoption. There is limited research on Smart Factory adoption in the dairy manufacturing industry in South Africa. A conceptual model was proposed based on a literature study, identifying the main factors that influence the adoption of a Smart Dairy Factory. A hypothesised model was tested by conducting a research study with a sample of employees from different hierarchical levels in a dairy factory. The questionnaire was distributed to employees and management in the organisation. The results and insights obtained, determined the factors that influence the adoption of a Smart Dairy Factory in South Africa. This study identified that the independent factors of Individual Factors, Job Security, Perceived Benefits, Trust, Company Culture towards new innovations/technologies, Company Culture with employee involvement towards new innovation/technologies, Cost and Resources, Employee perceived value of Skills and Training and Organisational Skills and Training development all have a significant positive effect on Smart Dairy Adoption. The study further identified that the Job Level of employees have a significant effect on all of the factors influencing the Smart Dairy Adoption. This is a significant finding due to the fact that management, in general, is responsible for implementing Smart Factory technologies, whereas the general workforce are the ones accepting and being affected most by the change. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
  • Full Text: false
  • Date Issued: 2021-04

South Africa’s auto industry trade elasticity to economic performance in BRICS countries

  • Authors: Siswana, Babalwa
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/52980 , vital:44901
  • Description: South Africa’s automotive industry is a vital element in the country’s economy. This sector has been a strategically important sector in South Africa, and it is imperative to ensure not only the sustainability of the automotive sector in the country, but also the continued growth of the industry. This study addressed the determinants of South Africa’s automotive exports to BRICS countries. The main aim of the study is to examine South Africa’s automotive industry trade elasticity to economic performance in BRICS countries. An econometric assessment was done using different estimation techniques, namely Dynamic Panel Data General Method of Moments (GMM) on annual data from 2000 to 2016, quantile regression for the same period, and ANOVA analysis. This study used eight endogenous variables in explaining determinants of South African automotive export to BRICS countries. The results from the GMM technique suggested that only four variables out of eight variables were statistically significant, namely, automotive exports lagged once, corporate tax, research and development (R&D), and real exchange rates. Gross Domestic Product (GDP), Foreign Direct Investment (FDI), trade openness, and R&D all reduced automotive exports in South Africa. Quantile regression provided difference compared to the GMM dynamic panel data analysis. In the panel data analysis, corporate tax was positive, while in the quantile regression only Brazil’s corporate tax had a positive effect on South African automotive exports. FDI results in panel data GMM results were the same as quantile, while other variables results were not consistence with the dynamic panel data GMM results. The ANOVA results suggested that significant differences between BRICS countries impact on South Africa’s automotive exports. The findings indicate that South African automotive exports to BRICS have been proven to be elastic in four variables., namely, automotive exports lagged once, corporate tax, research and development (R&D), and real exchange rates. The South African automotive industry implemented policies such as the Motor Industry Development Programme (MIDP) and the Automotive Production and Development Programme (APDP); however, these policies failed to realise the targets set by the v industry. On the policies regarding automotive exports in South Africa, it is equally important to pay attention to corporate tax in South Africa as well as in other BRICS countries. BRICS economies lack policy synchronisation, hence the adverse impact on South African automotive exports. South Africa’s BRICS counterparts are knowledge-driven economies. Developing a strong human base is required in the sector. In addition, there is a need for BRICS countries to have a free trade agreement (FTA) to enhance trade amongst member states. Having free trade could help to make BRICS economic integration more meaningful to BRICS countries and the region. , Thesis (PhD) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2021
  • Full Text: false
  • Date Issued: 2021-04

Spatial fisheries management options for inclusion in marine spatial planning in South Africa

  • Authors: Reed, Jodie Romay
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/52068 , vital:43451
  • Description: Integration of sectoral based management into a coherent and coordinated spatial management framework is one of the central challenges of marine spatial planning ȋMSPȌǤ MSP initiatives aim to provide operational frameworks to promote sustainable use of the economic potential of the ocean while maintaining the value of marine biodiversity and the integrity of marine ecosystems to provide servicesǤ The ecosystem services associated with fisheries in terms of food and job provision are some of the most well recognised and highly valued in the marine realm and maintaining these benefits depends on a holistic understanding of the ecosystemǡ human uses and the management thereofǡ including areaǦbased managementǤ In ͲͰͱ͸ǡ South Africa was the first African country to enact MSP legislationǤ The development of MSP was advanced through a Presidential ocean economy initiative ȋOperation Phakisaǣ Oceans EconomyȌ that aimed to fast track marine transport and manufacturingǡ aquacultureǡ and the development of oil and gasǡ small harbourǡ and coastal and marine tourismǤ A dedicated ocean governance component was included to develop an overarchingǡ integrated ocean governance frameworkǤ The absence of fisheries in the plans and initiatives was conspicuousǤ The implementation of MSPǡ howeverǡ provides an opportunity to safeguard the ecosystem services provided by fisheries but only if the interests of fisheries can be adequately reflected in spatial plans and analysesǤ Furthermoreǡ the implementation of MSP may provide new opportunities for innovation in spatial approaches to local fisheries management that could address numerous spatial conflicts that have been reportedǤ Integration of spatial fisheries management approaches into MSP can also support the implementation of ecosystemǦbased management ȋEBMȌǡ by including mechanisms such as habitat protectionǡ effective management of areas important for vulnerable life history stagesǡ and bycatch managementǤ This study aimed to identifyǡ assess and further develop spatial management options for fisheries to facilitate the integration of fisheries management and MSPǤ This was achieved by firstlyǡ identifying existing spatial management instruments and assessing the way in which these instruments may be implemented to support spatial fisheries managementǤ Secondlyǡ the application of two contrasting spatial management optionsǡ applied to two pelagic fisheriesǡ was examined to assess their effectiveness at achieving fisheries management objectives with a focus on bycatch reductionǡ while minimising the costs to the fisheries. , Thesis (PhD) -- Faculty of Science, Ocean Sciences, 2021
  • Full Text: false
  • Date Issued: 2021-04

Strategies to sustain SMEs post the hard lockdown period: a multiple case study in Gauteng

  • Authors: Rabohale, Mokabolane Innocent
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/53015 , vital:44889
  • Description: The outbreak of the Covid 19 pandemic and the lockdown restrictions imposed by the government in March 2020 exacerbated uncertain conditions of the weak South African business environment. This meant that SME owners and managers in different sectors had to implement strategies to manoeuvre the further weakened and unprecedented business environment. To investigate this, the research question asked was: what sustainable strategies will SME owners and managers craft and implement to use post the lockdown period? The study analysed strategies before, during, and post the hard lockdown period to provide insight into how SMEs adopted to the uncertain business environment. This study interviewed twenty (20) SMEs in different sectors in Gauteng to explore strategies that SME owners and managers used to sustain their businesses prior to, during, and post the level 5 and level 4 lockdown. The study revealed strategies employed by SME owners across five sectors. Furthermore, the study indicated that during the hard lockdown, owners used a “wait and see” strategy in different degrees. Post the level 5 and 4 lockdown, different sectors were innovating, cost cutting, and digitisation according to their level of comfortability and diversification. The study reveals that strategic planning was missing prior, during, and post the level 4 and 5 lockdowns, despite SME owners’ educational background. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
  • Full Text: false
  • Date Issued: 2021-04

Synthesis of coumarin based fluorescent chemosensors for the detection of metal ions.

  • Authors: Hamukoshi, Simeon Shiweda
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Organic compounds--Synthesis
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52041 , vital:43422
  • Description: The study focused on the synthesis of three coumarin-based chemosensors; hydrazone fluorescent chemosensor , azo-benzothiazole dye and azo-quinoline dye. The hydrazone fluorescent chemosensor was synthesised through multiple reaction steps were the azide functionality at position 8 of the coumarin backbone was replaced with the hydrazone group in the last reaction step. The azo dyes were synthesised through a two step reaction process. The photophysical properties of all three chemosensors were investigated. The hydrazone chemosensor and azo-benzothiazole dye presented high absorption and emission, while the azo-quinoline only presented absorption properties. The chemosensing ability of the three products were investigated through absorption and emission. The hydrazone chemosensor was found to be highly selective towards Fe3+ in water and the dyes were found to be selective towards Hg2+. The mechanisms of interaction between the chemosensors and their selective metal ions were investigated via computational analysis and 1H NMR analysis. All of the chemosensors where characyerised using 1H NMR, Fourier Transform Infrared Spectrometer (FTIR) and the X Ray Chrystal structure for the hydrazone chemosensor was obtained via X ray Chrystallography. Finally, the electron density distribution of the all synthesised compounds their predicted stable metal ion complexes was determined using Density Functionaly Theory (DFT). , Thesis (MSc) -- Faculty of Science, School of Biomolecular and Chemical Sciences, 2021
  • Full Text: false
  • Date Issued: 2021-04

Testing alternative Pinus species and hybrids for the South African structural pole market

  • Authors: Ndovela, Lisakhanya Sizo
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/52002 , vital:43435
  • Description: According to the South African National Standards, only Pinus canariensis, Pinus pinaster and Pinus radiata are suitable to be used as structural softwood poles. Of the three Pinus species mentioned, only P. radiata is still planted in South Africa and its future and availability is uncertain. The lack of availability of structural pine poles necessitates the South African forestry industry to look at alternative softwood species to plant. The broad aim of this study was to determine whether there are alternative Pinus species or hybrids that can be planted in South Africa’s Western and Southern Cape areas that will have suitable properties to be used as a resource for structural poles. This document reports on the testing of the strength and stiffness, as well as other relevant properties, of poles from several Pinus species and Pinus hybrids. The poles were derived from thinned eight-year-old tree stands in Knysna, Western Cape. Poles were peeled, kiln dried and graded before bending tests were carried out. Species and hybrids were also assessed for differences within a tree along the length. Also, the correlation between modulus of rupture (MOR), modulus of elasticity (MOE) and wood grading properties was evaluated. The results showed that there was a highly significant effect of species and log position on the mean MOR of the poles. In general, poles from the bottom of the tree had a higher mean MOR than poles from the top of the tree. There was also a highly significant effect of species and pole position on the mean MOE of poles, with poles at the top of the trees generally having higher MOE values. A very concerning finding was that the 5th percentile MOR and mean MOE values of all the species were far lower than required by SANS 10163-1 (2003). Even for the best performing species, P. radiata, the MOR 5th percentile value was less than half the required value, while the mean MOE was also 39% lower than the required mean MOE. Apart from P. radiata, the P. maximinoi performed the best of all species and hybrids since it had a statistically similar mean MOR and MOE to P. radiata. P. elliottii and the hybrid P. elliottii x caribaea had statistically significant lower MOR and MOE than P. radiata. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2021
  • Full Text: false
  • Date Issued: 2021-04

The application of the doctrine of common purpose to the joint possession of firearms

  • Authors: Mnono, Zimbini
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Firearms--Law and legislation
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/51197 , vital:43225
  • Description: According to the South African criminal justice system, where two or more people in a joint unlawful enterprise associate to commit a crime with only one participant carrying a firearm, the principles of joint possession are used to secure successful prosecution of the participants for joint possession of the firearm. However, up to date, the State is yet to see a conviction based on the application of these principles. S v Khambule marks the first case in which the doctrine of common purpose was used to secure a conviction of multiple accused for the crime of joint possession of firearms. The case has become outdated law following the Supreme Court of Appeal decision in S v Mbuli where the court found that the doctrine could not be applied to circumstance crimes such as joint possession of firearms. Both cases have received enormous criticism from academics and in subsequent judgments. One main criticism relates to whether the failure to apply the doctrine of common purpose is consistent with the current law and constitutional freedoms, such as the right to be free from all forms of violence and the right to equal benefit of the law. The purpose of the dissertation is to evaluate the jurisprudence on the application of the doctrine of common purpose to the joint possession of firearms. The evaluation includes an analysis of the principles of joint possession in the context of constitutional rights as well as contributions made by academics such as Burchell. The commonpurpose doctrine does not extend to joint possession of firearms. This is as a result of firstly, the absence of causation from the definitional elements of the crime; secondly, the mental aspect of possession; thirdly, the principles of joint possession as the basis of liability for joint possession of firearms; and lastly due to the nature of the crime of joint possession of firearms, being a circumstance crime. The paper recommends the extension of the doctrine of common purpose to joint possession of firearms. The recommendation is based on the following arguments. Firstly, the mental aspect of possession relates to the description of the article and not fault. Secondly, the doctrine is and has always been intended to criminalise joint wrongdoings. Thirdly, the extension of the doctrine of common purpose to joint possession of firearms is consistent with the presumption of possession in terms of the Firearm Controls Act. Lastly, the expansion enhances constitutional rights and fulfils the duty of the State to make South Africa less vulnerable to firearms. , Thesis (LLM) -- Faculty of Law, Criminal and Procedural Law, 2021
  • Full Text: false
  • Date Issued: 2021-04

The application of the prevention and combating of corrupt activities act

  • Authors: Landman, Johan Abraham
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Corrupt practices--South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/51201 , vital:43223
  • Description: The study will address the application of the Prevention and Combatting of Corrupt Activities Act (PCCAA) and the various offences that is created by PCCAA and how the coutls apply PCCAA in corruption cases. This study will compare the crimes that was created under the repealed Corruption Act with the crimes created under PCCAA, lt will further show how the courls interpreted the application of PCCAA. The infamous case of former police commissioner, Jacki Selebi will be discussed and how the Supreme coutl of Appeal applied section 4 of PCCAA. lt will furlher explore why section 5 of PCCAA needs amendment to be able to prosecute foreign public officials under PCCAA. The PCCAA Amendment Bill is currently before parliament to amend section 5 of PCCAA. This study will further explore how corruption is dealt considering hospitality and gifts. This must be the most unnoticed form of bribery that occurs which PCCAA does not specifically clearly addresses. This will shorlly be compared to the German Penal Code. All legislation has strengths and weaknesses, including PCCAA. This study will explore those strengths and weaknesses and how they can be solved. lt will explore loopholes within PCCAA and the strategy of 'unbundling' corruption and its effects. lt has been stressed by the courts that corruption is a very serious crime and therefore the reporting thereof is impoftant. This study will discuss the reporling of corruption in terms of section 34 of PCCAA. This study will fufther show through South African case law that the courls are too lenient when sentencing individuals guilty of corruption and that the minimum sentence needs to be the starting point for sentencing offenders. The courts should not have discretion to deviate from this minimum sentence given how serious the courls express corruption to be and the devastating effects it has. , Thesis (LLM) -- Faculty of Law, Criminal and Procedural Law, 2021
  • Full Text: false
  • Date Issued: 2021-04

The concurrent jurisdiction of the high court and labour court

  • Authors: Beyleveld, Dominique
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , Labor laws and legislation--South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/51191 , vital:43218
  • Description: The words “concurrent jurisdiction” essentially means that there is more than one court which has the power to hear a matter and therefore, a party may choose which forum to approach.1 The High Court (hereinafter referred to as “HC”) may exercise jurisdiction, together with the Labour Court (hereinafter referred to as “LC”), in enforcing purely contractual and other common law claims as well as for breach of fundamental rights to which the Labour Relations Act (LRA)2 (or other labour statutes) do not give effect to.3 However, this is not without limitations. The HC and the LC have concurrent jurisdiction over claims relating to the lawfulness of dismissal or other conduct by the parties, whereas all claims based on fairness falls within the exclusive jurisdiction of the LC.4 The practical implication of the approach taken by the Constitutional Court (hereinafter referred to as “CC”)5 is that jurisdiction may, to a certain extent,6 be based on the pleadings, and a litigant may in fact have simultaneous claims arising from the same circumstances.7 However, where the basis of the action and the relief sought is clearly identifiable as being part of the machinery of the Labour Relations Act (hereinafter referred to as the “LRA”) or other labour legislation, then the HC will not have jurisdiction and it is up to the LC to remedy the wrong and give effect to the primary objects of the LRA , Thesis (LLM) -- Faculty of Law, Mercantile Law, 2021
  • Full Text: false
  • Date Issued: 2021-04

The decision to stay or go: study of generation y chartered accountants in South Africa

  • Authors: Hluyo, Fungai
  • Date: 2021-04
  • Subjects: Gqeberha (South Africa) , Eastern Cape (South Africa) , South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/53031 , vital:44878
  • Description: Having deduced from literature that millennials have a very high employee turnover, the purpose of this study was to gain a deeper understanding of what factors would make millennial Chartered Accountants in South Africa, or (CA)s, stay with or leave organisations. This is a case study within a qualitative research paradigm and followed an interpretivistic approach. A purposeful sampling technique was used in selecting a sample of seven millennial CAs for data collection. The sample constituted millennials who had changed jobs at least once in the past five years as these fell within the scope of this study. Semistructured interviews were conducted virtually using an interview guide as a data collecting instrument. Data saturation was reached after the interview of the sixth participant. The interview process provided a good blance of subjective views, opinions, emotions, and values of all participants. Having transcribed the interview transcripts, a manually detailed coding process was completed. Eight main emerging themes were identified which ultimately provided responses to the research questions. The data analysis revealed that millennial CA(SA)s prioritise, and in fact, demand flexibility coupled with a work-life balance. They expect their employers to understand and be supportive of these expectations. Other important retaining factors for this cohort of employees include, amongst others; training and development opportunities, growth, diversity, obtaining performance feedback, and coaching. An important issue that participants highlighted is the importance of ethics at work and or ethical leadership. The researcher could not probe more into this due to time constraints. This is recommended for further research. Having interviewed only six participants, this relatively small number poses a limitation to this study as these findings cannot be generalised to apply to all millennial CAs in South Africa. The data collected however, provided useful recommendations to employers looking for ways to retain millennial Chartered Accountants. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMU Business School, 2021
  • Full Text: false
  • Date Issued: 2021-04
  • Disclaimer
  • Privacy
  • Copyright
  • Contact