Factors in the success or failure of selected urban agricultural projects in Nelson Mandela Bay
- Authors: Fadana, Yanga Yolanda
- Date: 2015
- Subjects: Agricultural development projects -- South Africa -- Eastern Cape -- Nelson Mandela Bay Municipality , Urban agriculture -- South Africa -- Eastern Cape -- Nelson Mandela Bay Municipality -- Economic aspects , Land use, Urban -- South Africa -- Eastern Cape -- Nelson Mandela Bay Municipality
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/8306 , vital:26321
- Description: Sustainable agriculture is explained by Reddy (1995: 22) as the ability for agricultural projects to produce crops and at the same time be able to maintain production without failing. With growing populations in urban areas, the importance of urban agriculture has become increasingly important. This research aims to study the factors that contribute to the success and failure of selected urban agricultural projects within the Nelson Mandela Bay by looking at how the community benefits from two selected community projects. It is however important to note that there are various factors contributing to the success and failure of any project. This research looks into the viability of the environment that the projects are in, the level of community membership, ownership structures, how messages are communicated between stakeholders, and the purpose of the project as well as the resources available to see the project through. Urban agriculture becomes a very important practice to the urban poor, as it subsidizes household income when the produce is sold and reduces expenditure when it is consumed (Kirkland, 2008: 23). Zooming into the Nelson Mandela Bay, it is evident that this practice is also beneficial for the communities in which the projects operate, however, challenges such as theft make such projects dependent on funders and donors.
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- Date Issued: 2015
Factors influencing consumer decision-making process in the private health institutions
- Authors: Akponah, Voke Blessing
- Date: 2015
- Subjects: Consumer behavior Decision making , Public-private sector cooperation
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10948/50033 , vital:41993
- Description: The development that has taken place in the health care sector includes all factors that have brought changes in the consumer decision-making process regarding the private health institutions. In Nigeria, the development is evident in the delivery of the health care services. This indicates that the private health institutions deliver quality health care service by using efficient and quality medical equipment. However, there is a growing awareness among clients to perform an extensive search before the purchase of health care service and the increased expectation from health care quality by clients and their family. The change in consumer behaviour has caused a shift in the consumer decision-making process due to the availability of several sources of information and various health institutions they can choose from. The purpose of this study is to investigate the factors that influence the consumer decision-making process that can enhance customer satisfaction and reduce cognitive dissonance. In this study the behaviour of consumers is related to how they make decisions along several stages before they make a purchase and in a health care setting the decision-making process refers to the process that clients pass through in making choices on alternative health institutions. The quantitative research method was adopted in this study in describing, analysing and interpreting data. A structured questionnaire was employed to collect primary data from 450 respondents in Lagos state, Nigeria. The primary data was statistically analysed using five stages, namely, exploratory factor analysis, Cronbach‟s alpha reliability testing, descriptive statistics, multiple regression analysis, and Pearson correlation analysis. The empirical results of this study indicates that service encounter experience, personal income and support sources are significantly related to the decision-making process. The decision-making process also has significant positive relationship with both customer satisfaction and cognitive dissonance. This indicates that influential factors that have been identified through the empirical results enlighten researchers and the private health institutions on issues that influence the clients‟ decisions to utilise private health institutions. The well-being and satisfaction of clients will be enhanced if the private health institutions can craft effective strategies that will enable clients to gain easy access and utilise health care services. This study emphasised that access to and utilisation of health care services in the private health institutions can be granted to clients through personal income and support sources from family members and private health institutions. Futhermore, health insurance coverage is an effective way that will help clients overcome the financial constraints and restricted access to and utilisation of private health institutions. The study further reveals that the well-being and satisfaction of clients will be enhanced if private health institutions improve access to quality health care. Failure to improve the overall quality and performances of the health care services in the private health institutions can lead to clients‟ cognitive dissonance. Both private and public health institutions should play a major role in providing the necessary facilities that can assist the clients in their decision-making process regarding their health care needs. This will enable the health care institutions‟ staff to understand what clients value and need and, therefore, how well to satisfy them and reduce cognitive dissonance. Easy access and utilisation of the private health institutions as well as satisfaction in quality health care delivery will create better health outcomes for the workforce and citizens of a country and this will improve economic development.
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- Date Issued: 2015
Factors influencing employee engagement during change
- Authors: Kubheka, Praise-God Ntandokayise Mandla
- Date: 2015
- Subjects: Management -- Employee participation , Organizational change -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/3135 , vital:20402
- Description: A lot of attention over the years has been focused on understanding employees resistance to change. A few researchers have provided insights into the reasons why some employees remain positive and engaged during times of uncertainty and changes in the organosation. To help build this knowledge area the study was aimed to investigating the factors that drive employee engagement during change. One-hundred-and-twenty employees, across a cross-section of jobs at a specific bank in South Africa, were surveyed. The empirical results obtained from the survey showed that independent variables such as dialogue, organisational culture and a clear4 career plan were congruent with the expected results. In other words these vriables displayed a significant association with the de[endent variables (e.g. job involvement, organisational commitment and organisational citizenship behaviour.).
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- Date Issued: 2015
Fibre optic network supporting high speed transmission in the square kilometre array, South Africa
- Authors: Rotich, Enoch Kirwa
- Date: 2015
- Subjects: Optical communications , Fiber optics , Telecommunication systems
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/6552 , vital:21109
- Description: This thesis provides in-depth information on the high speed optical transport requirements for the Square Kilometre Array. The stringent data rates as well as timing and synchronization requirements are dealt with respect to the optical fibre technology. Regarding the data transport, we draw a clear comparison between a typical telecommunication access network and a telescope network. Invoking simulations and experiments on the field and laboratory test bed, we successfully implement a suitable telescope network using vertical cavity surface emitting laser (VCSEL) technology. Polarization effects on the KAT-7 telescope network, an operational prototype for the SKA is studied so as to estimate the expected effect in the MeerKAT telescope with transmission distances _ 12 km. The study further relates the obtained values to the expected impact on the distribution of the time and frequency reference in the MeerKAT array. Clock stability depends on the differential group delay (DGD) and polarization stability. On a 10:25 km link that includes the riser cable a DGD of 62:1 fs was attained. This corresponds to a polarization mode dispersion (PMD) coefficient of 19:4 fs=km1=2. This is a low PMD value considering telecommunication network. The PMD value is within the allowed budget in the telescope network. However, this may not be the case at longer baselines extending to over 1000 km as expected in SKA 2. The fibre's deployment contribution to the DGD is measured by comparing the deployed fibre to the undeployed of equal lengths. On the 10:25 km deployed single mode fibre, the maximum and mean DGDs measured were 217:7 fs and 84:8 fs respectively. The undeployed fibre of similar type and equal length, gave a maximum and minimum DGDs of 58:6 fs and 36:3 fs respectively. The deployment is seen to increase the maximum and minimum DGDs by factors of 3.7 and 2.3 respectively. This implies that fibre deployment is very critical in ensuring the birefringence is minimized. Polarization fluctuation recorded a maximum of 180o during the 15 hour real time astronomer use of the antenna. To ascertain the contribution of the riser cable, state of polarization (SOP) of the buried section of the single mode fibre in the link was established. A maximum SOP change of 14o over 15 hour monitoring was measured. From the stability realized on the buried section of the fibre, the change in polarization is contributed by the riser cable. The fluctuation in polarization can cause the phase of a clock signal to drift between the birefringent axes by an equal amount corresponding to DGD. We experimentally demonstrate how polarization stabilization can be attained using the polarization maintaining fibre. We also demonstrate the applicability of VCSEL technology in the SKA unidirectional data flow especially for shorter baselines < 100 km. The VCSEL is a low cost light source with attractive advantages such as low power consumption, high speed capabilities and wavelength tuneability. This work entails the use of traditional amplitude modulation commonly known as non-return-to-zero (NRZ) on-off keying (OOK) because of its simplicity and cost. For the MeerKAT typical distances, we show that even in a worst case scenario, the use of VCSEL on different fibres in MeerKAT distance is achievable. Using the impairment reduction approach, we successfully manage to achieve transmission distance beyond MeerKAT. Several in-line dispersion compensation mechanisms in telecommunication have been successfully employed. The work focused on the use of negative dispersion fibre to mitigate the chromatic dispersion effects in the optical fibre. The inverse dispersion fibre (IDF) is proposed for compensation in the conventional zero dispersion wavelength fibres, G.652 that are used at the third window. Similarly, the chromatic dispersion compensation of non-zero dispersion shifted fibre (NZDSF) is experimentally demonstrated using negative dispersion submarine reduced slope (SRS), G. 655 (-). With dispersion management, we demonstrate how transmissions beyond MeerKAT baselines can be achieved error free. A systematic investigation of the use of distributed Raman amplification to overcome the attenuation losses is provided. High on-off gains of up to 15 dB, 8 dB and 5 dB for bidirectional, forward and backward pumping respectively is achieved on a 25 km Raman optimized NZDSF-Reach fibre. Combined dispersion mitigation technique and low noise distributed Raman amplification, up to about 80 km transmission was achieved on a 4:25 Gbps modulated VCSEL using a single pump. Using bidirectional pumping, more than 100 km of transmission was achieved error free. The high gains enhance the VCSEL transmission distance. We further suggest a novel way of using the Raman pump to distribute the clock signal while amplifying the data signal streaming the astronomical data from the remote placed telescope receivers. In summary, the work presented in this thesis has demonstrated the potential use of VCSEL technology for data collection in the telescope array. We have studied the optical effects and mitigation so as to improve the clock and data transmission. This work is relevant and valuable in providing SKA with VCSELs, an option for extremely high network performance at reasonable costs.
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- Date Issued: 2015
Financial liberalisation and economic growth in SADC countries
- Authors: Moyo, Clement Zibusiso
- Date: 2015
- Subjects: Southern African Development Community , Economic development -- Africa, Southern
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10948/5748 , vital:20995
- Description: Attaining high levels of economic growth and development has been one the goals of the Southern African Development Community (SADC). This paper investigates the relationship between financial liberalisation and economic growth in SADC countries. Annual data for the 15 SADC countries for the period 1985-2011 was used to develop a fixed effect model, generalised method of moments (GMM) as well as the fully-modified OLS (FMOLS) cointegration test. The results revealed that there is a positive relationship between financial liberalisation and economic growth in SADC but there is no long-run relationship between the two variables. It is recommended that the SADC adopt measures to increase the level of financial openness in the region in order to increase economic growth but this policy should be supplemented by other growth enhancing policies in order to increase economic growth over the long-term. However, prior to the increase in the level of financial openness, well-defined property rights and a sound regulatory framework should be in place to monitor the financial liberalisation process in order to avoid financial crises.
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- Date Issued: 2015
Forecasting volatility on the rand foreign exchange market
- Authors: Klaas, Sinoxolo
- Date: 2015
- Subjects: Foreign exchange rates -- South Africa , Foreign exchange administration , South Africa -- Economic conditions
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10948/7892 , vital:24319
- Description: Exchange rates are one of the most essential determinants of a country's economic performance in terms of level of trade. Since the exchange rate is one of the best indicators of competitiveness, this study sought to examine the behaviour of the rand against other emerging countries in the South African exchange market. The study explored the trends and estimated the forecasting accuracy of six currency markets using ARCH-family and Random walk models over the period 1994 to 2013.The six currency markets examined were the Rand/Dollar, Rand/Pound, Rand/Euro, Rand/Yen and Rand/Pula. The Rand exchange rates did exhibit the characteristics of volatility clustering and asymmetric effects suggesting volatility of the Rand. Exchange rates tend to rise when there is more bad news in the financial market than good news and positive shocks imply a higher next period conditional variance than negative shocks of the same sign.
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- Date Issued: 2015
Formulation and process optimisation of ethionamide 250 MGtablets using quality by design principles
- Authors: Isaacs, Nasreen
- Date: 2015
- Subjects: Pharmaceutical chemistry , Drugs -- Design , Pharmaceutical technology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3979 , vital:20497
- Description: The traditional approach of Quality by Testing (QbT) limits the assurance of product quality to in-process and post-production testing. To overcome these limitations, a more proactive and systematic means to product development and optimisation is required. Quality by Design (QbD) is an example of such an approach which focuses on understanding the product and its manufacturing process and emphasises that quality should be built into the product and not merely tested. The study aims to optimise ethionamide tablets, an immediate release oral solid dosage form using QbD.
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- Date Issued: 2015
Fostering corporate citizenship in the South African taxi industry
- Authors: Peko, Nyameka
- Date: 2015
- Subjects: Corporations -- South Africa -- Nationality
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/2869 , vital:20358
- Description: The purpose of this study was to investigate and foster corporate citizenship (CC) in the SA taxi industry. The primary objective of this study was to foster corporate citizenship in the South African taxi industry by investigating the determinants that would increase CC in the SA taxi industry. The study gathered quantitative information about CC, identified which factors influence CC in the taxi industry and investigated which of these factors are the most important determinants that would increase the CC in the industry in South Africa. This study was intended to contribute to building the body of knowledge for the implementation and fostering of corporate citizenship programs. In particular, the researcher hoped that the framework provided in this study would outline the practical strategies that the taxi organisations should take in developing targeted, long-term partnerships with the communities in which they operate. Convenience sampling was used to select one hundred (100) participants. The response rate was ninety-six percent (96%). The sample was structured to include the directors, deputy directors, senior managers, managers and the drivers of the taxi organisations in twenty-three districts in the Eastern Cape. These participants were taken from the body that incorporates all the taxi associations in Eastern Cape called the Eastern Cape Bus and Business Chamber (ECBTBC). The empirical results revealed that in order to increase corporate citizenship within the SA taxi industry there should be an increase in its human resource management, operations management and the dynamic externalism of its members. The findings also revealed that the social cynicism should be decreased within this industry.
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- Date Issued: 2015
Friction hydro pillar riveting process of Ti-6AI-4V titanium sheet
- Authors: Tsikayi, Davies Shamiso
- Date: 2015
- Subjects: Friction welding , Titanium alloys -- Welding , Sheet-metal
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/6357 , vital:21078
- Description: Mechanical fasteners are used extensively in the joining of two or more metal plates or sheets. Riveted joints have been the joints of choice mainly for the Aerospace Industry. However for this research, Friction Hydro Pillar Processing has been used to develop and characterise a new riveting technique termed Friction Hydro Pillar Riveting (FHPR). Two overlapping 3.17 mm Ti-6Al-4V sheets were joined together using Ø6 mm rivet which was friction processed. This research has focussed on the initial development of Friction Hydro Pillar Riveting thereby establishing a basic understanding of the influences of main process parameters, rotational speed and axial force - and also joint configurations. The results showed that with a decrease in the bottom hole chamfer angle, there was resulting overall increase in the rivet joint pull off strength. From the best performing joint configuration in pull off tests, shear tests were conducted whilst a blind hole FHPR joint was also done and tested in pull off and shear strength. The shear test fracture surfaces exhibited ductile failure. The microstructure of the joints was thus evaluated. From parent material, heat affected zone and to weld zone there was a variation in the microstructure analysed. The hardness profiles showed increased hardness in the weld zone which partly explained the shear results. The hardness increase was mainly due to grain refinement in the weld zone by the Friction Hydro Pillar Riveting process.
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- Date Issued: 2015
Future technological factors affecting unmanned aircraft systems (UAS):a South African perspective towards 2025
- Authors: Marope, Tumisang
- Date: 2015
- Subjects: Drone aircraft -- Control systems , Drone aircraft pilots -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/2939 , vital:20371
- Description: The fact that pilots are not physically situated in the aircraft for UAS operations makes the current standards applicable to manned aircraft not suitable for UAS operations (FAA, 2013). FAA (2013:18) states that ―removing the pilot from the aircraft creates a series of performance considerations between manned and unmanned aircraft that need to be fully researched and understood to determine acceptability and potential impact on safe operations in the NAS. According to ERSG (2013), not all technologies necessary to ensure the safe integration of civil UASs into civilian airspace are available today. The extrapolation that can be made based on the above arguments is that advancement of UAS technologies will more likely have a significant bearing on the safe integration of UASs into civilian airspace. Therefore, as an identified research gap, the research/main objective of this research is to identify future technological factors affecting Unmanned Aircraft Systems in the Republic of South Africa leading towards the year 2025.
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- Date Issued: 2015
Generalizations of some fixed point theorems in banach and metric spaces
- Authors: Niyitegeka, Jean Marie Vianney
- Date: 2015
- Subjects: Fixed point theory , Banach spaces , Mappings (Mathematics)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/5265 , vital:20828
- Description: A fixed point of a mapping is an element in the domain of the mapping that is mapped into itself by the mapping. The study of fixed points has been a field of interests to mathematicians since the discovery of the Banach contraction theorem, i.e. if is a complete metric space and is a contraction mapping (i.e. there exists such that for all ), then has a unique fixed point. The Banach contraction theorem has found many applications in pure and applied mathematics. Due to fixed point theory being a mixture of analysis, geometry, algebra and topology, its applications to other fields such as physics, economics, game theory, chemistry, engineering and many others has become vital. The theory is nowadays a very active field of research in which many new theorems are published, some of them applied and many others generalized. Motivated by all of this, we give an exposition of some generalizations of fixed point theorems in metric fixed point theory, which is a branch of fixed point theory about results of fixed points of mappings between metric spaces, where certain properties of the mappings involved need not be preserved under equivalent metrics. For instance, the contractive property of mappings between metric spaces need not be preserved under equivalent metrics. Since metric fixed point theory is wide, we limit ourselves to fixed point theorems for self and non-self-mappings on Banach and metric spaces. We also take a look at some open problems on this topic of study. At the end of the dissertation, we suggest our own problems for future research.
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- Date Issued: 2015
Going green: the impact of integrated sustainability reporting within JSE companies
- Authors: Nkosi, Jabulani Elias
- Date: 2015
- Subjects: Sustainable development , Environmental policy
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/9129 , vital:26467
- Description: The world is threatened by the possibility of an irreversible catastrophe that many would blame on the environmental impact of the present lifestyle, the results of which are climate change or global warming. This is clearly unacceptable to both present and future generations. If going green really means changing the way we live and pursuing knowledge and practices that can lead to more environmentally friendly and socio-ecologically responsible decisions, it is time to protect the environment and sustain its natural resources for current and future generations. Integrated sustainability reporting should be viewed as a vehicle to accomplish this global agenda of going green beyond mere legal requirements. The purpose of this study was to investigate the impact of integrated sustainability reporting (ISR) on achieving green business status within JSE listed companies. To achieve the purpose, an in-depth literature study and empirical research were undertaken using a triangulation method. After a detailed descriptive and content analysis of the collected primary and secondary data, the study found the following: Most of the JSE listed corporations’ integrated reports are not utilising the CSR, GRI guidelines and voluntary standards as effective tools to drive the process of green sustainable business. Some of the JSE listed organisations are treating financial and non-financial matters as separate issues in their integrated reports; The ISR has no impact in terms of using the NEMA framework in driving the process of green sustainable business in the JSE listed organisations; Most of the JSE listed organisations were fully aware of ecological sustainability as a pillar to drive the process of green sustainable business. They treat this pillar of sustainable development as a separate entity from socio-economic developmental issues. Most of the JSE listed corporations adhere to all the bylaws and regulations of ecological sustainability within their required certification of ISO 14001 standards in order to remain effectively certified by the auditing authority. Some integrated reports indicated much support for staff in terms of health, educational activities, labour laws and programmes that advance the socio-economic aspects of human beings; The study has found that the social pillar of sustainability is mostly supported by JSE listed organisations in South Africa - to the level of the requirements of labour relations legislation. It is not integrated with sustainability policies beyond the statutory requirements; It was further noticed in this study that integrated sustainability reports, based on the Global Reporting Initiative (GRI) principles and the King III reporting guidelines, disclose outcomes and results regarding the JSE listed organisations’ obligations, strategy and management approach which occurred within the reporting period. To address the above-listed findings, the researcher recommended that the JSE listed organisations integrate the NEMA, EMS, CSR, GRI and King III guidelines in their integrated sustainability reporting, in order to produce an effective sustainable green business in South Africa that is ecologically accountable and socio-economically supportive to all multi-stakeholders. The government and non-governmental organisations are the key players to drive the process of going green using the ISR. The government needs more structured policies and regulations that will support the National Development Plan in the pursuit of green economy in the form of grants and incentives that are beyond the present status quo.
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- Date Issued: 2015
Green procurement for municipal construction projects
- Authors: Maboza, Luthando Sithembele
- Date: 2015
- Subjects: Sustainable construction , Construction industry -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3165 , vital:20407
- Description: The study is a qualitative investigation of the implementation of green procurement in the construction sector at Local Government level. The focus is on the Metropolitan Municipalities of EThekwini, Nelson Mandela Bay and City of Cape Town. For the purpose of realising an extended comparative perspective, an additional three smaller municipalities were also reviewed. Green procurement is the tool used by governments to source the supply of products and services that are environmentally friendly to counter the global problem of climate change. The study commences with the exposition of the aspects of green procurement from the basis of the enabling legal framework to the scholarly contribution from which the study can be predicated. It becomes apparent from this review of legislation that there is a scope within the existing body of legislation for the use of green procurement as an environmental tool. Scholarly work addresses adoption of green procurement and considers, inter alia, the Bottom-up Approach, the Top-down Approach, and the Procura + Milestones model. Literature indicates that development has a negative impact on the environment, which includes vegetation loss, illegal dumping, and greenhouse gas emissions. Further, the literature recommends green lifecycle design and production of construction projects to reduce the impact of construction on the environment. A systematic investigation of municipalities by means of interviews with relevant municipal officials involved with the procurement of products and services, infrastructure services and environmental affairs officials made it possible to identify factors that impact on the implementation of green procurement. The investigation finds that the major obstacles to green procurement are socio-economic challenges that confront municipalities, lack of policy, and lack of awareness. Recommendations include the proposal of initiatives that encourage and improve the implementation of green procurement. The study hopes to inspire innovation in the implementation of green procurement in the construction sector.
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- Date Issued: 2015
Guidelines for psychiatric nurses to assist in the care of female patients with bipolar disorder during their admission and stay in a tertiary level psychiatric facility in the Eastern Cape, South Africa
- Authors: Du Plessis, Anneki
- Date: 2015
- Subjects: Psychiatric nurses -- South Africa -- Eastern Cape , Manic-depressive persons -- South Africa -- Eastern Cape , Psychiatric hospitals -- Admission and discharge -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10072 , http://hdl.handle.net/10948/d1021160
- Description: Bipolar disorder is the sixth leading cause of disability in the world among people aged 15-44. Bipolar disorder is a chronic psychiatric disorder with a significant impact on patients’ social, occupational, and general functioning well-being. Patients who are diagnosed with bipolar type 1 disorder are usually admitted to a psychiatric hospital as an involuntary patient which means that they will be cared for in a closed unit. In a critical analysis of the literature it was noted that not much is known of the experiences of patients in psychiatric wards. The researcher used a qualitative approach, with a phenomenological research strategy. An explorative, descriptive and contextual design was utilized to gain more insight into female patients’ lived experiences during their admission and stay in a tertiary level psychiatric institution. The research population was female patients who were diagnosed with bipolar disorder and who had recently experienced being admitted to and treated at a tertiary level psychiatric facility where they were treated for this condition. Purposive sampling was utilised to obtain the sample for the study. A pilot study was conducted before the study commenced to ensure the trustworthiness of the findings. The researcher obtained the data via semi-structured interviews as well as field notes and reflective journals. Data was analysed by using Tesch’s method as adopted by Creswell. Once the data had been analysed, a literature control was done in accordance with the findings. Guba’s model of trustworthiness was utilized to ensure that this study was trustworthy and credible. The researcher implemented ethical principles to ensure that no harm was done to the participants during the research study. Finally, guidelines were developed to assist professional nurses to manage patients optimally during their admission and stay in a closed unit of a tertiary psychiatric facility.
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- Date Issued: 2015
Guidelines for the analysis of student web usage in support of primary educational objectives
- Authors: Von Schoultz, Dean John
- Date: 2015
- Subjects: Information behavior , Searching behavior , Internet in higher education , World Wide Web , Educational technology
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/4965 , vital:20772
- Description: The Internet and World Wide Web provides huge amounts of information to individuals with access to it. Information is an important driving factor of education and higher education has experienced massive adoption rates of information and communication technologies, and accessing the Web is not an uncommon practice within a higher educational institution. The Web provides numerous benefits and many students rely on the Web for information, communication and technical support. However, the immense amount of information available on the Web has brought about some negative side effects associated with abundant information. Whether the Web is a positive influence on students’ academic well-being within higher education is a difficult question to answer. To understand how the Web is used by students within a higher education institution is not an easy task. However, there are ways to understand the Web usage behaviour of students. Using established methods for gathering useful information from data produced by an institution, Web usage behaviours of students within a higher education institution could be analysed and presented. This dissertation presents guidance for analysing Web traffic within a higher educational institution in order to gain insight into the Web usage behaviours of students. This insight can provide educators with valuable information to bolster their decision-making capacity towards achieving their educational goals.
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- Date Issued: 2015
Guidelines for the responsible use of social media by nursing students
- Authors: Nyangeni, Thandolwakhe
- Date: 2015
- Subjects: Nursing students , Social media
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10065 , http://hdl.handle.net/10948/d1020658
- Description: Social media use is becoming a popular activity among students at Nursing Education Institutions in South Africa, with Facebook, WhatsApp, YouTube, Twitter, LinkedIn, Instagram, Blackberry Messaging, Mxit and Google Plus being some of the social networking sites adopted for various reasons by nursing students. However, lack of accountability and unethical use of social media by nursing students in South Africa has been reported. Owing to the lack of accountability and unethical misconduct associated with the use of social media, guidelines for responsible usage are needed. A qualitative, descriptive, explorative and contextual research study was conducted to explore and describe the perceptions of nursing students regarding the responsible use of social media. Nursing students registered for the undergraduate nursing degree at a Nursing Education Institution in the Eastern Cape, South Africa were interviewed using a semi-structured individual interview method in order to elicit rich descriptions of their perceptions regarding the use of social media. The goal of the study was to develop guidelines for the responsible use of social media by nursing students. In phase one, the researcher explores and describes the perceptions of nursing students regarding the use of social media. In phase two, guidelines for the responsible use of social media by nursing students were developed, using the findings of the study. Tesch’s method of thematic synthesis was utilised to analyse the data. To ensure rigour and trustworthiness in the study, the researcher used Guba and Lincoln’s criteria, namely: credibility, dependability, confirmability, and transferability. To protect the rights and dignity of the participants and to safeguard the integrity of this study, the researcher complied with the following ethical principles: beneficence and non-maleficence, autonomy, justice, privacy, and confidentiality. Twelve in-depth, semi-structured interviews provided saturated data, which was then transcribed and coded to yield the major and sub-themes that were identified in this study. The information shared by the participants provided the basis for the development of guidelines for the responsible use of social media by nursing students, which are intended to provide guidance for legally and ethically acceptable social networking. Three themes that emerged from the data were: Nursing student’s lives are centred around social media, Nursing students experience blurred personal and professional boundaries and lack of accountability, and Students expressed a need for the guidelines for the responsible use of social media. Six principle guidelines focusing on accountable and ethically acceptable use of social media were developed. The study concludes with the recommendations regarding nursing practice, nursing education and nursing research. The limitations of the study were that data was collected from students in the undergraduate nursing degree programme and therefore the experiences of the nursing students in the postgraduate degree and diploma programmes regarding the use of social media are not known. The researcher depended solely on the story as told by the participants and did not get the opportunity to observe their social networking conduct, so the researcher made inferences based on the information that was supplied by students. The paucity of research in this topic made it a challenge for the researcher to find context-specific research articles for South Africa. Recommendations from this study could be used to influence further research aimed at establishing the effectiveness of the guidelines. The findings of this research study could also be used to influence policy making at national and provincial levels of government regarding the use of social media at healthcare facilities.
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- Date Issued: 2015
Histopathology induced by a medicinal plant indigenous to South Africa that has shown in vitro anti-microbial activity against drug resistant strains of Mycobacterium tuberculosis
- Authors: Shauli, Mathulo Mathabiso
- Date: 2015
- Subjects: Mycobacterial diseases , Tuberculosis -- Treatment -- South Africa , Medicinal plants -- Microbiology , Traditional medicine
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/3990 , vital:20498
- Description: Tuberculosis (TB) still remains a health problem globally with over a million new infections and a mortality rate of 1.5 million individuals annually (Hawn et al., 2014). The emerging multi-drug resistant (MDR) strains that accompany human immune deficiency virus (HIV) infection in high-incidence populations contribute significantly to the health burden of TB (Areeshi et al., 2014). The standard treatment that is advocated by the World Health Organization (WHO) for active tuberculosis includes long-term therapy that incorporates the use of isoniazid, rifampicin, pyrazinimide and ethambutol as front line drugs (WHO, 2013). Drug resistance against established treatment options for TB makes research into new forms of therapy an imperative in health care (Ntulela et al., 2009). South Africa is currently witnessing a high number of cases of drug-resistant TB. In some parts of the country, one in ten cases of TB is resistant to treatment. It is therefore essential to have new anti-tuberculosis agents, which can be readily and simply produced from some local source (Warner et al., 2014). A logical starting point for this research of new agents would be the herbal medicines which have been used for centuries in rural areas by local healers. Western developed countries have harvested ethno botanical knowledge and have produced drug therapies for conventional medicines for other ailments. The activity of extracts of the active plants and their properties still require study in animal models in order to assess their future as new anti-tuberculosis agents (Lall and Meyer, 1999). This study focuses on qualitative and quantitative experimental findings after the administration of a medicinal plant extract to animals. This will include daily observation of animals, recording of feed consumption, recording of animal weights, macroscopic examination of animals at necropsy, tissue harvesting, histological procedures and microscopy.
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- Date Issued: 2015
Hydrothermal co-liquefaction of microalgae biomass and coal
- Authors: Charlie, David
- Date: 2015
- Subjects: Microalgae -- Biotechnology Biomass chemicals , Biomass energy
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/50087 , vital:42035
- Description: In this research, the objective was to investigate under the chosen liquefaction conditions whether co-liquefaction of coal and microalgae biomass as agglomerates does possess a distinct advantage over the individual liquefaction of microalgae and coal. This was initially done by preparing dry micro algal biomass, followed by the preparation of coal fines and finally coal-algae as agglomerates. The agglomerates were prepared by continuously adsorbing wet concentrated microalgae slurry/solution onto the dry coal fines in order to prepare different ratios of coal-algae agglomerate(s). Ultimate analysis of the starting material (coal fines and the microalgae) as well the agglomerates then followed. According to research, wet microalgae biomass has the potential of acting as a hydrogen donor. By preparing the agglomerates, the rationale was to promote hydrogen supply from the micro algal biomass that has high hydrogen content to the coal with lower hydrogen content. The resulting product was then expected to have fairly higher hydrogen content. However, this was not observed or evident from the elemental analysis results. The results (elemental composition) showed no difference between the agglomerates and the coal. Based on the observed ultimate analysis results, liquefaction experiments were conducted to determine whether hydrogen transfer and the expected synergistic effect between micro algal biomass and coal would occur. The crude oil product was recovered and simulated distillation technique was used for the characterization of the crude oil product. The results we in agreement that higher yields can be achieved during co-liquefaction as compared to the individual liquefaction. A possible synergistic effect that was investigated in this research existed. Liquefaction results provided evidence of higher yields recovery from the agglomerates compared to those of coal fines and microalgae biomass. Although there was higher recovery on the agglomerates, there appears to be a downward trend (decrease) in product recovery with higher loadings of micro algal biomass on to the coal. This means that higher loading of micro algal biomass tend to suppress liquefaction of coal, thus resulting in lower product recovery. While lower loadings tend to effectively facilitate the liquefaction of coal, thus proving that the proposed synergistic effect between the two does exist. Overall product recovery (yields) of the agglomerates is higher compared to the individual recovery of coal fines and microalgae biomass. This was followed by mass balancing to determine the overall conversion. Higher conversions were achieved on the agglomerates compared to coal. This could mean that microalgae have the potential to facilitate the liquefaction of coal and improve its conversion. The observed trend results in improved conversion as well as higher oil yields (simulated distillation results). Overall, the mass balancing provided insightful information regarding the coal-microalgae interaction based on the conversion, and this further corresponds or supports the simulated distillation results. This research paper provides evidence of the synergistic effect that exists between micro algal biomass and coal.
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- Date Issued: 2015
Identity in the media in a post-apartheid radio station in South Africa: the case of Lotus FM
- Authors: Pillay, Divinia
- Date: 2015
- Subjects: Public broadcasting -- Political aspects -- South Africa , Radio stations -- South Africa , Post-apartheid era -- South Africa , Identity politics -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/5709 , vital:20971
- Description: This research study investigates Lotus FM, as one of many South African Media components that are catering for one specific cultural or religious group. The investigation explores the implications of practice of a pecific media component that caters for specific cultural or religious groups operating in a post-apartheid South Africa. After the end of the apartheid era in South Africa, a number of South African media components have proclaimed their commitment to reconciliation and nation building within South Africa by attempting to unite audiences. The South African Broadcasting Corporation, which held the monopoly on South African Broadcasting for decades, has promulgated the notion of the rainbow nation to audiences in South Africa. Since 1994, sub-components of the different South African media segments were developed to cater for specific ethnic or cultural groups by the station managements. This was aimed at reversing the effects of pre-1994 media that catered for the former ruling minority only or ethnic groups that were categorized by the former political dispensation. It is possible, however, that this has resulted in a renewed and continued separation of interest groups present in South Africa today.
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- Date Issued: 2015
Impact of microfinance institutions on small business sustainability in Nelson Mandela Bay
- Authors: Mgoduka, Bulelwa Keitumetse
- Date: 2015
- Subjects: Microfinance , Financial institutions -- South Africa , Small business -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , MPhil
- Identifier: http://hdl.handle.net/10948/8564 , vital:26407
- Description: The rise of microfinance in South Africa as a development trajectory has dismissed ideas that small business enterprises have no significant contribution to the economic growth and development of the country. The primary objective of the study is to assess the impact of microfinance service providers on the success and sustainability of small business enterprises in the Nelson Mandela Bay. By applying descriptive statistics, 2 ordinary least square regression analyses as well as correlation matrix; the results reveal that microfinance has a positive and significant impact on the success and sustainability on small business enterprises in the Nelson Mandela Bay. The research findings hold a variety of implications for Government and policymakers. The study recommends that the microfinance sector must be under good governance through the microfinance regulatory and supervisory structures, since the sector contributes a great deal towards one of the most important objectives of the Post-Apartheid Government. Further, small business entrepreneurs must be well exposed to the requirements, standards and norms which govern the financial sector. This is particularly important in terms of the National Credit Act provisions.
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- Date Issued: 2015