Exploring the leadership capacity development needs of middle management within a selected higher education institution
- Authors: Moodley, Kumaree
- Date: 2014
- Subjects: LCSHDevelopment leadership Educational leadership
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/11309 , vital:26909
- Description: The twenty first century society is characterised by a lack of certainty and an unstable economic, social, political, and technological environment. Many South African higher education institutions are facing many challenges in understanding and responding to organisational change and development and this has implications for leadership. Ensuring an adequate leadership skills base is one of the key priorities for the transforming South African higher education landscape, especially as this pertains to developing the type of leaders who can meaningfully engage staff in change and transformation processes (Herbst, 2007). Effective leadership is vital for a productive, functional organisation and it is important to cultivate leadership development initiatives that are in alignment with and contribute to the achievement of the desired strategic outcomes. There is increasing emphasis on developing executive and middle management staff to be highly competent in achieving the strategic goals and priorities of the institution. The focus of this study is to explore the leadership capacity development needs of middle managers employed by a specific higher education institution in the Eastern Cape. The study will use the well-documented scholarship from Bernard Bass‟s interpretation of transformational, transactional, and laissez-faire leadership styles to frame the understanding of the leadership styles of middle managers as well as their developmental needs with regard to leadership (Bass, 1997). This will be used as an interpretive lens to assess the leadership development needs, including leadership skills needs, and the effectiveness of leadership development programmes in addressing the needs of middle managers within the higher education institution that is the focus of this study.
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- Date Issued: 2014
Turning the lens on the adolescent suicide
- Authors: De Monk, Ingrid Venessia
- Date: 2014
- Subjects: Teenagers -- Suicidal behavior South Africa -- Port Elizabeth , School children -- Mental health services -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9582 , http://hdl.handle.net/10948/d1020791
- Description: In South Africa, suicidal behaviour in the younger generations has become rapidly part of a major public health problem. It is a well-known fact that adolescence is a critical period of progression in a teenager’s development which makes them more susceptible and vulnerable to suicide. Statistics have shown that there has been an increase in suicide among adolescents within the last decade (Schlebusch, 2005). The main aim of this research study is to explore the perceptions of adolescents regarding the factors that contribute to adolescent suicide. This study reviews literature concerning various risks factors for adolescent suicidality. It also described major social and psychological theories of suicide and the extent to which these studies support the importance to adolescent suicide. In the literature review theories of Bronfenbrenner’s Ecological Systems Theory, Durkheim’s sociological theory of suicide, Freud’s psychological perspective and Baumeister’s Escape Theory were discussed. A qualitative research design will be used by using visual participatory methodology techniques namely photo voice and reflective writing. A sample of 12 grade 11 learners, male and female, was purposely selected to participate in the research study. The focus of the study is to investigate the risk factors underlying adolescent suicidal behaviour in schools in the Northern Areas of Port Elizabeth, as well as to explore the stressors experienced by adolescents that could contribute to them having a higher suicide risk. Another focus point will be to look at prevention strategies as an antipode for suicidal behaviour. The main findings that emerged from the data analysis include contributing factors namely: socio-economic factors, personal factors, psychological factors and educational and school-related factors. The main prevention strategy themes emerged from findings derived from the data and include: parental involvement, religion, professional help and support groups and confiding in someone that you trust.
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- Date Issued: 2014
An analysis of alternative objective measures of economic performance and social development.
- Authors: Hlanti, Msawenkosi Madoda
- Date: 2014
- Subjects: National income -- Economic aspects -- South Africa -- Evaluation , Economic development -- Social aspects -- South Africa -- Evaluation , Gross domestic product -- South Africa , Sustainable development -- South Africa , Social planning -- South Africa , Economic policy , South Africa -- Social conditions
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1099 , http://hdl.handle.net/10962/d1013144
- Description: The measurement of economic performance and social development has become increasingly important as societies have evolved and become more complex. At present nations do not only seek to improve economic performance but are also compelled to improve social development through improvements in socially and environmentally sustainable initiatives. Traditional measures such as Gross Domestic Product (GDP) which is derived from United Nations’ System of National Accounts (SNA) have been criticised given the inability to adequately account for these social and environmental aspects of social development. Given these perceived deficiencies in the conventional measures, several alternative objective measures have been proposed in an attempt to address these shortcomings. Therefore the primary aim of this study is to analyse, via a literature survey, these alternative objective measures of economic performance and social development. The alternative measures that constitute the survey are the Index of Sustainable Economic Welfare (ISEW), the Genuine Savings (GS), and the United Nations’ Human Development Index (HDI). Upon the completion of the literature survey, sustainable development theory is used to evaluate the extent to which the National Accounts and the alternative objective measures are consistent with Hicksian and Fisherian definitions of income and capital, which embody the concepts of sustainability and sustainable development. The evaluation reveals that the National Accounts neither conform to the Hicksian nor the Fisherian definitions of income, thus could not be viewed as a measure of sustainable income. It is found that the ISEW is consistent with the Fisherian definition of income and is also a partial indicator of sustainable development. The evaluation of the GS measure reveals that it is consistent with the Hicksian definition but not the Fisherian definition. In terms of overall sustainability, it is argued that GS is a partial measure of weak sustainability. The HDI is similar to the National Accounts, in that it is neither consistent with the Hicksian nor the Fisherian definitions of income and is also not a measure of sustainability. In summary, the study demonstrates that despite GDP's shortcomings as a measure of economic performance and social development, currently, there is no alternative approach which simultaneously addresses every flaw in GDP. However, all the alternatives yield a much better approximation of social development than GDP.
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- Date Issued: 2014
Analysis of technical efficiency of small-scale maize producers: a case study in Tsolo magisterial district in O.R Tambo district in the Eastern Cape of South Africa
- Authors: Avuletey, Richard
- Date: 2014
- Subjects: Corn -- Fertilizers -- South Africa -- Eastern Cape , Corn -- Economic aspects -- South Africa -- Eastern Cape , Entrepreneurship -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11210 , http://hdl.handle.net/10353/d1016191 , Corn -- Fertilizers -- South Africa -- Eastern Cape , Corn -- Economic aspects -- South Africa -- Eastern Cape , Entrepreneurship -- South Africa -- Eastern Cape
- Description: Maize is the most important cereal crop grown in South Africa. This crop is produced throughout the country under diverse conditions and in diverse environments. The study only focuses on technical efficiency because it is an important subject in developing agriculture where resources are limited, but high population growth is very common. In such a setting, increased output will depend more on efficiency improvements and assessing the scope for such efficiency improvements within the system is a crucial need. The objective of the study was to determine the level of technical efficiency and to identify the socio-economic and institutional characteristics as well as the entrepreneurial spirit that influence the technical efficiency of small-scale maize producers in the Tsolo magisterial district. Purposive and Snowball sampling techniques were used to collect primary data from 120 small-scale farmers. The stochastic frontier model was used to determine the level of technical efficiency. The Multivariate OLS was used to analyze the socio-economic factors and institutional characteristics that have influenced the technical efficiency of maize production. A similar linear regression model was used to estimate the influence of positive psychological capital and entrepreneurial spirit on the technical efficiency of maize production. The stochastic results revealed that small-scale farmers in Tsolo are technically efficient at 98 percent in maize production and experience increasing return to scale (1.37), which means that increase in the use of inputs, will as well increase their productivity and efficiency. The inefficiency model results indicated that age, years in farming, household size and extension contact significant and 3 variables, namely, as years in farming, extension contact and farm size are significant in the OLS model. Lastly the results of the linear regression indicated that, out of the 4 variables estimated in the entrepreneurial spirit, self-efficacy and resilience were significant with respect to its responsiveness to total maize output.
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- Date Issued: 2014
The impact of export diversification on economic performance in South Africa: 1980-2012
- Authors: Choga, Ireen
- Date: 2014
- Language: English
- Type: Thesis , Doctoral , Doctor of Commerce (in Economics)
- Identifier: vital:11489 , http://hdl.handle.net/10353/d1018223
- Description: A widely held view is that export diversification constitutes an important component of export led growth, and poses a major challenge for many developing countries. Given this, the role of export diversification on economic growth warrants a fresh analysis in South Africa. The primary objective of this study is to determine the impact of export diversification on economic growth in South Africa. In this context, the study seeks to establish the relationship between export diversification, export stability and export growth. Initially, the study examines the extent and structure of export diversification in South Africa; it then empirically establishes the link between export diversification, export stability and export growth. Finally, it develops a model and investigates the effects of export diversification on economic growth in South Africa. As an attempt to fulfill the proposed objectives, this study uses quarterly data for the period 1980 to 2012 as well as data for 28 selected groups of commodities to investigate the effects of export diversification on economic growth in South Africa. Measures of export diversification and structural changes in exports in the context of South Africa were discussed. The findings of this study are that the Commodity Specific Cumulative Experience function showed that plots for manufactured commodities are shifted to the right indicating that the commodities are non-traditional in nature whereas, plots for primary commodities are shifted to the left. Results also indicated that South Africa relies more on traditional exports than manufactured exports. Various measures of export instability were used to calculate the export instability index in South Africa. The results of the study reveal that the South African export basket is slightly diversified, and the less diversified or primary commodities are associated with high instability VECM approach was used to allow us to establish the extent of influence of export diversification and other explanatory variables on economic growth. Consistent with other researchers, the study found that export diversification plays significant roles to economic growth in South Africa. A number of diagnostic checks were employed to validate the parameter evaluation of the outcomes achieved by the model. The model passed all the diagnostic checks. On the whole, the results to a larger extent painted a pictured that export diversification is important or drives economic growth in South Africa. Corroborating our findings with work of other scholars, we conclude that our results are complementary.
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- Date Issued: 2014
Integrated quality management system for improving performance of selected schools in the King Williams Town Education District
- Authors: Sikiti, Siyabonga
- Date: 2014
- Subjects: Total quality management in education , Educational accountability -- South Africa , School management and organization -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8491 , http://hdl.handle.net/10948/d1021028
- Description: In order for the democratic government in South Africa to eradicate segregatio. It was necessary to introduce new policies with school teachers being expected to be agents of change. Teachers have a big role to play in the transformation of the country. This research investigated Integrated Quality management Systems (IQMS) for improving performance of selected schools in the King Williams Town Education District. Three schools were selected in the King Williams Town District . The aim of this research was to examine the implementation of IQMS in the selected schools. The introduction of IQMS by the Department of Education in 2003, did not help the schools in the King Williams Town district improve their performance. IQMS is a government policy. The intention of public policy is to solve a problem. The findings of this study indicates that in the selected schools the problem of poor performance was not solved by the introduction of IQMS. Scholars have written extensively on performance appraisal. Different writers agree that the main purpose of appraisal is to improve performance. The Constitution (1996) and policies provide a strong foundation for the effective implementation of IQMS and public administration provides a good support for the effective implementation of IQMS. Additionally, legislation and subsequent policies give guidelines of how to implement the system successfully. In this study, questionnaires were given to 15 educators to investigate how schools understand and implement the IQMS. Qualitative analysis was undertaken to interpret the responses from the educators. Themes were formulated based on the responses received. Findings were generalised from the responses received. The research discovered that educators do implement IQMS, but they do not see it as a mechanism of improving performance. Teachers demonstrated an inadequate understanding of IQMS.
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- Date Issued: 2014
Analysis of the interaction of Hsp90 with the extracellular matrix protein fibronectin (FN)
- Authors: Hunter, Morgan Campbell
- Date: 2014
- Subjects: Heat shock proteins , Fibronectins , Extracellular matrix proteins , Breast -- Cancer
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4170 , http://hdl.handle.net/10962/d1020960
- Description: Mounting evidence suggests that Hsp90 is present and functionally active in the extracellular space. The biological function of extracellular Hsp90 (eHsp90) remains relatively uncharacterized compared to that of intracellular Hsp90. eHsp90 has been shown to interact with a finite number of extracellular proteins, however, despite the identification of eHsp90 interacting proteins, the function of eHsp90 in these complexes is unknown. Several reports suggest a role for eHsp90α in cell migration and invasion. Reported targets for eHsp90 stimulated cell migration include MMPs, LRP-1, tyrosine kinase receptors and possible others unidentified. Limited studies report a role for eHsp90β. Recently, Hsp90α and Hsp90β were isolated in a complex containing fibronectin (FN) on the surface of MDA-MB-231 breast cancer cells. Herein, we report direct binding of Hsp90α and Hsp90β to FN using a solid phase binding assay and surface plasmon resonance (SPR) spectroscopy. SPR spectroscopy showed that Hsp90β bound the 70 kDa amino-terminal fragment of FN (FN70), but that binding of FN to Hsp90β was not limited to FN70. Confocal microscopy showed regions of colocalization of Hsp90 with extracellular FN matrix fibrils in Hs578T breast cancer cell lines. Treatment of Hs578T breast cancer cells with novobiocin (an Hsp90 inhibitor) and an LRP-1 blocking antibody resulted in a loss of FN matrix and FN endocytosis (novobiocin treated). Addition of exogenous Hsp90β was able to recover such effect after both treatments. FN was shown to colocalize with intracellular LRP-1 in novobiocin treated Hs578T cells. Immunoprecipitation of an LRP-1 containing complex showed the presence of Hsp90 and 70 and 120+ kDa FN fragments. Treatment of Hs578T cells with novobiocin increased the level of FN120+ bound in LRP-1 immunoprecipitate. Exogenous Hsp90β decreased the level of low and high molecular weight FN fragments in a complex with LRP-1, despite the fact that higher levels of lower molecular weight FN fragments were detected in this cell lysate compared to the other treatments. We report FN as a novel interacting protein of eHsp90. Taken together, we provide evidence for a direct role of eHsp90β in FN matrix remodeling. We suggest that Hsp90 plays a direct role in FN matrix dynamics through interaction with FN and LRP-1. The identification of FN as a novel interacting protein of eHsp90 suggests a role for Hsp90 in FN matrix remodeling, which is important for a number of fundamental cellular processes including cell migration and metastasis.
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- Date Issued: 2014
Apprehension of bias and the spectacle of the fair-minded observer: a survey of recent commonwealth and South African decisions on pre-judgment
- Authors: Okpaluba, Chuks , Juma, Laurence
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/126107 , vital:35850 , http://specjuris.ufh.ac.za/apprehension-bias-and-spectacle-fair-minded-observer-survey-recent-commonwealth-and-south-african
- Description: A perusal of contemporary Commonwealth case law reveals that allegations of bias or apprehension of bias tend to revolve around the pecuniary or other interests of the Judge arising from kinship, previous relationship, or association with party or counsel.1Apparent bias could also be inferred from the judge‘s conduct or utterances, especially, his/her criticisms or cumulative criticisms of a party during proceedings or in adjudication.2In other instances, a judge‘s previous knowledge or association with the case in court, or of an important witness, may disqualify him/her from sitting or passing judgment in the case.3
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- Date Issued: 2014
The challenges of re-skilling former prison inmates in the 21st century: a case study of Nkonkobe municipality, Eastern Cape - South Africa
- Authors: Ralasi, Nolusindiso
- Date: 2014
- Subjects: Criminals -- Rehabilitation , Prisoners -- Education , Alternatives to imprisonment
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10353/25687 , vital:64432
- Description: The main aim of this study is to investigate challenges of re-skilling former inmates in South Africa in the 21st century. This is a case study of the Nkonkobe Municipality, Eastern Cape - South Africa. The objectives of this research are: to identify the current skills and education programmes offered by the DCS, to establish perceptions of inmates regarding the role of the DCS in skills training and education, to find out whether the current former inmates feel the support of society, to ascertain the offenders’ education levels, professional skills and job experience before and after prison, to identify the status of the offenders’ rights and rehabilitation programmes, to provide recommendations on ways to cement policy loopholes that have a deleterious effect on the government’s drive to create a whole new world for the ex-inmates and their holding communities. A qualitative research design was used to collect data from the participants in order to obtain in-depth information concerning the perceived impact of the life skills programmes on the behaviour and conduct of former inmates who participated in the programme. The findings reveal that the life skills programmes had an impact on the behaviour of former inmates because the life skills that they had gained from the programme mostly helped them desist from committing the offences that they used to commit. The life skills also curbed their anti-social behaviour tendencies. The factors that contributed to the success of the project included the approaches that the facilitators used to run the project, such as, motivating the inmates in everything that they did and the cooperation between the facilitators, the prison and the community. The findings also reveal that the good team work that occurred between the former inmates, support from the community, as well as the support from the Department of Correctional Services contributed to the success of the project. It was also suggested that the project should include all youths in the community; imprisonment should not be a passport to empowerment. The final suggestion was that the project should include all stakeholders in the community. The life skills projects should target unemployed youths in the communities so that they can gain skills that can help them become self-employed. The study also recommends that the life skills programmes should be implemented in all prisons in South Africa to provide inmates with life skills that can help them face day-to-day life challenges. This study culminates in the realisation that no life skills programmes can be successful in any society if they exclude the core social members who are law-abiding citizens. This is key to ensure that these programmes do not polarise the society due to empowerment being erroneously viewed as a preserve of those who did not abide by societal laws. This would set a wrong precedence that this study seeks to forestall. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
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- Date Issued: 2014
Indium phthalocyanine–CdSe/ZnS quantum dots nanocomposites showing size dependent and near ideal optical limiting behaviour
- Authors: Sanusi, Kayode , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189921 , vital:44947 , xlink:href="https://doi.org/10.1016/j.optmat.2014.09.021"
- Description: Indium phthalocyanine–CdSe/ZnS quantum dots (QDs) nanocomposites (InPc–CdSe/ZnS) of three sizes (5.57, 8.12 and 8.75 nm) were synthesized according to known procedures. The particle size of the CdSe/ZnS QDs alone are 3.95, 6.02, and 6.66 nm, and are denoted as QD1, QD2 and QD3 respectively. The nonlinear absorption (NLA) properties of the nanoconjugates (InPc–CdSe/ZnS) were investigated with nanosecond laser radiation at 532 nm wavelength. Enhanced NLA properties compared to the InPc alone were observed in the conjugates. The NLA was found to increase with the size of the CdSe/ZnS particles attached to the phthalocyanine. The observed increase was due to the availability of more free-carrier ions in the larger QDs, thus giving rise to the enhanced free-carrier absorption. The measured free-carrier absorption cross-sections (σFCA) are 1.10, 1.65 and 1.95 (×10−19 cm2) for InPc-QD1, InPc-QD2 and InPc-QD3 respectively. The nanoconjugates (InPc–CdSe/ZnS) showed a much lower threshold for optical limiting together with a much lower transmission at high fluences, than the previously reported nanocomposite limiters.
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- Date Issued: 2014
Invariant optimal control on the three-dimensional semi-Euclidean group: control affine and quadratic Hamilton-Poisson systems
- Authors: Barrett, Dennis Ian
- Date: 2014
- Subjects: Automorphisms , Symmetry (Mathematics) , Lyapunov stability , Geometry, Riemannian , Geometry, Affine , Elliptic functions
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/64805 , vital:28605
- Description: In this thesis we consider invariant control systems and Hamilton-Poisson systems on the three dimensional semi-Euclidean group SE(1,1). We first classify the left-invariant control affine systems (under detached feedback equivalence). We provide a complete list of normal forms, as well as classifying conditions. As a corollary to this classification, we derive controllability criteria for control affine systems on SE(1,1). Secondly, we consider quadratic Hamilton-Poisson systems on the (minus) Lie-Poisson space se(1,1)*. These systems are classified up to an affine isomorphism. Six normal forms are identified for the homogeneous case, whereas sixteen representatives (including several infinite families) are obtained for the inhomogeneous systems. Thereafter we consider the stability and integration of the normal forms obtained. For all homogeneous systems, and a subclass of inhomogeneous systems, we perform a complete stability analysis and derive explicit expressions for all integral curves. (The extremal controls of a large class of optimal control problems on SE(1,1) are linearly related to these integral curves.) Lastly, we discuss the Riemannian and sub-Riemannian problems. The (left-invariant) Riemannian and sub-Riemannian structures on SE(1,1) are classified, up to isometric group automorphisms and scaling. Explicit expressions for the geodesics of the normalised structures are found.
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- Date Issued: 2014
Retention strategies of technical graded employees at Transnet
- Authors: Human, Ricardo Ronald
- Date: 2014
- Subjects: Employee retention Employee motivation
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/11080 , vital:26883
- Description: The recruitment and retention of personnel plays an important role in assisting organisations to adapt and remain competitive, thus ensuring their financial sustainability and becoming a leader in the market. It is also a crucial element in assisting organisations in reaching their long and short term goals. The employment and retention of highly skilled employees is a costly exercise and staff turnover impacts negatively, not only on a financial level but also on the organisation as a whole. The immediate implementation of specific strategies that ensures the recruitment and retention of these employees will guarantee a reduction in employee turnover thus ensuring organisational competitiveness. The purpose of this study was to investigate the organisational factors impacting on employee retention at Transnet Freight Rail (TFR). The population group for the study included 34 TFR employees from the G graded salary scale. The response rate for the questionnaire was 100% with the Likert scale instrument consisting of 27 questions divided into two sections: Section one explored the demographic profile of the respondents; Section two focused on getting responses on the five organisational factors impacting on employee retention namely: organisational association; monetary compensation; work satisfaction; work enrichment; career development. The following research design was adopted: Step 1: A literature review was conducted to determine the various organisational factors impacting on employee retention. Step 2: From the literature review the researcher structured the research questionnaire. Step 3: The results of the survey were analysed and interpreted. Step 4: Conclusions and recommendations were done.
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- Date Issued: 2014
The framing of China in Nigeria : an analysis of the coverage of China's involvement in Nigeria by Thisday newspaper
- Authors: Umejei, Emeka Lucky
- Date: 2014
- Subjects: Thisday (Nigeria) , Nigeria -- Foreign economic relations -- China , China -- Foreign economic relations -- Nigeria , Journalism -- Nigeria , Journalism -- Political aspects -- Nigeria , Nigerian newspapers -- Objectivity , Social responsibility of business -- Nigeria
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3525 , http://hdl.handle.net/10962/d1012974
- Description: This study identified the media frames that dominate Thisday newspaper's coverage of China's engagement with Nigeria and relate these frames to frame sponsors, who articulate and contest these framings. Frame analysis is applied to a sample of 40 news, feature and opinion articles between the sample period of 1 November 2011 and 31 December 2012. The study analysed media content from Thisday newspapers, drawing on the four dimensions of frames identified by Entman: define problems, diagnose causes, evaluate causal agents and their effects, and recommend treatment (Entman 1993). Using an inductive approach to frame analysis, the study identified two overarching mega frames, contested among the ruling elites who sponsor their views on China in the media, which define China's engagement with Nigeria; partner/role model and predator. The two mega frames mirror the broad characterisation prevalent in the academic literature on China in Africa. The primary partner/role model mega frame constructs China's engagement with Nigeria as a mutually beneficial economic partnership while on the other hand the predator mega frame constructs it as unequal and exploitative. The study identified the activities of frame sponsors who are articulating and promoting their views on China's engagement with Nigeria in the media as primarily responsible for these framings. The study also identified the activities of frame sponsors (ruling and economic elites) was key to the exclusion of ordinary peoples' voices, civic organisations, trade unions and human rights organisation in the text. However, the study also attributes the exclusion of ordinary voices, human rights, democracy and civic engagements in the text to the weakness of Thisday journalism in mediating the framings of China being promoted and articulated by elite frame sponsors. This is, however, symptomatic of the fault lines of journalism practice in Nigeria.
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- Date Issued: 2014
Simple, illustrated medicines information improves ARV knowledge and patient self-efficacy in limited literacy South African HIV patients:
- Authors: Dowse, Roslind , Barford, Kirsty-Lee , Browne, Sara H
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156698 , vital:40039 , DOI: 10.1080/09540121.2014.931559
- Description: Few studies have investigated antiretroviral (ARV) knowledge and self-efficacy in limited literacy patients. Using a randomized controlled study design, we investigated the influence of a simple pre-tested patient information leaflet (PIL) containing both text and illustrations on HIV- and ARV-related knowledge and on self-efficacy over six months in a limited literacy African population. The recruited patients were randomly allocated to either control (standard care) or intervention group (standard care plus illustrated PIL). HIV and medicines-related knowledge was evaluated with a 22-question test at baseline, one, three, and six months. Self-efficacy was assessed using a modified version of the HIV Treatment Adherence Self-Efficacy Scale.
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- Date Issued: 2014
Can expansive (social) learning processes strengthen organisational learning for improved wetland management in a plantation forestry company, and if so how? : a case study of Mondi
- Authors: Lindley, David Stewart
- Date: 2014
- Subjects: Mondi Group , Wetland management -- South Africa , Wetland conservation -- Study and teaching (Continuing education) , Employees -- Training of -- South Africa , Action theory , Critical realism , Social learning , Environmental education -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2003 , http://hdl.handle.net/10962/d1015661
- Description: Mondi is an international packaging and paper company that manages over 300 000 ha of land in South Africa. After over a decade of working with Mondi to improve its wetland management, wetland sustainability practices were still not integrated into the broader forestry operations, despite some significant cases of successful wetland rehabilitation. An interventionist research project was therefore conducted to explore the factors inhibiting improved wetland management, and determine if and how expansive social learning processes could strengthen organisational learning and development to overcome these factors. In doing so, the research has investigated how informal adult learning supports organisational change to strengthen wetland and environmental sustainability practices, within a corporate plantation forestry context. How individual and/or group-based learning interactions translate to the collective, at the level of organisational change was a key issue probed in this study. The following three research questions were used to guide the research: 1. What tensions and contradictions exist in wetland management in a plantation forestry company? 2. Can expansive learning begin to address the tensions and contradictions that exist in wetland management in a plantation forestry company, for improved sustainability practices? 3. Can expansive social learning strengthen organisational learning and development, enabling Mondi to improve its wetland sustainability practices, and if so how does it do this? Cultural historical activity theory (CHAT) and the theory of expansive learning provided an epistemological framework for the research. The philosophy of critical realism gave ontological depth to the research, and contributed to a deeper understanding of CHAT and expansive learning. Critical realism was therefore used as a philosophy to underlabour the theoretical framework of the research. However CHAT and expansive learning could not provide the depth of detail required to explain how the expansive learning, organisational social change, and boundary crossings that are necessary for assembling the collective were taking place. Realist social theory (developed out of critical realism by Margaret Archer as an ontologically located theory of how and why social change occurs, or does not) supported the research to do this. The morphogenetic framework was used as a methodology for applying realist social theory. The expansive learning cycle was used as a methodology for applying CHAT and the theory of expansive learning; guiding the development of new knowledge creation required by Mondi staff to identify contradictions and associated tensions inhibiting wetland management, understand their root causes, and develop solutions. Through the expansive learning process, the tensions and contradictions become generative as a tool supporting expansive social learning, rather than as a means to an end where universal consensus was reached on how to circumvent the contradictions. The research was conducted in five phases: • Phase 1: Contextual profiling to identify and describe three activity systems in Mondi responsible for wetland management: 1) siviculture foresters; 2) environmental specialists; 3) community engagement facilitators. The data was generated and analysed through through document analysis, 17 interviews, 2nd generation CHAT analysis, and Critical Realist generative mechanism analysis; • Phase 2: Analysis and identification of tensions and contradictions through a first interventionist workshop. Modelling new solutions to deal with contractions, and examining and testing new models in and after the second interventionist workshop; • Phase 3: Implementing new models as wetland management projects and involved project implementation. This included boundary crossing practices of staff in the three activity systems, reflection and re-view in a further five progress review/interventionist workshops, and a management meeting and seminar; • Phase 4: Reflecting on the expansive learning process, results, and consolidation of changed practices, through nine reflective interviews and field observations; • Phase 5: Morphogenic/stasis analysis of the organisational change and development catalysed via the expansive social learning process (or not). The research found that expansive social learning processes supported organisational learning and development for improved wetland management by: 1) strengthening the scope, depth, and sophistication of participant understanding; 2) expanding the ways staff interact and collaboratively work together; 3) democratising decision making; 4) improving social relations between staff, reducing power differentials, and creating stronger relationships; 5) enhancing participant reflexivity through deeper understanding of social structures and cultural systems, and changing them to support improved wetland and environmental practice of staff, and developing the organisational structures and processes to strengthen organisational learning and development; and 6) using the contradictions identified as generative mechanisms to stimulate and catalyse organisational learning and development for changed wetland/environmental management.
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- Date Issued: 2014
Establishing a formulation design space for a generic clobetasol 17- propionate cream using the principles of quality by design
- Authors: Fauzee, Ayeshah Fateemah Beebee
- Date: 2014
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:20983 , http://hdl.handle.net/10962/5868
- Description: The pharmaceutical industry is global, is highly regulated and is able to achieve reasonable product quality but at high cost with maximum effort. Numerous challenges face the pharmaceutical industry and include a shrinking research pipeline, less innovation, outsourcing, investments, increasing research and development costs, long approval times, growth of the generic industry, failure to understand or analyze manufacturing failure and wastage as high at fifty percent for some pharmaceutical products. An efficient and flexible pharmaceutical sector should be able to consistently produce high quality pharmaceutical products at a reduced cost with minimal waste. As a result, Food and Drug Administration (FDA) and other agencies such as the International Conference on Harmonization (ICH) have embraced a “Quality by Design” (QbD) paradigm and this has become the “desired state” so as to shift manufacturing from being empirical to a science, engineering, and risk based approach. QbD is a systematic approach for the development of high quality pharmaceutical dosage forms that begins with predefined objectives based on the premise that quality must be built into and not tested into a product. QbD together with the establishment of a design space for dosage forms is a fairly new concept and there is limited published data on QbD concepts that report the entire process of identifying Critical Quality Attributes (CQA), design of a formulation and manufacturing process to meet product CQA, understanding the impact of material attributes and process parameters on product CQA, identification and controlling sources of variability in materials and processes that affect the CQA of a product and finally establishing, evaluating and testing a design space using both in vitro and in vivo approaches to assure that a product of consistent quality can always be produced. The objective of these studies was to implement a QbD approach to establish a design space for the development and manufacture of a safe, effective, stable generic formulation containing 0.05% w/w clobetasol 17-propionate (CP) that had similar in vitro and in vivo characteristics to an innovator product, Dermovate® (Sekpharma® Pty Ltd, Sandton, Gauteng, RSA). Such a product would pose a minimal risk of failure when treating severe skin disorders such as seborrhoeic dermatitis, extreme photodermatitis and/or severe psoriasis in HIV/AIDS patients in Southern Africa.
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- Date Issued: 2014
The natural history of the humpback dolphin, Sousa chinensis, in KwaZulu-Natal, South Africa : age, growth and reproduction
- Authors: Nolte, Zianca
- Date: 2014
- Subjects: Sousa -- South Africa -- KwaZulu-Natal , Dolphins -- Behavior -- South Africa -- KwaZulu-Natal , Dolphins -- Age determination -- South Africa -- KwaZulu-Natal , Dolphins -- Development -- South Africa -- KwaZulu-Natal , Dolphins -- South Africa -- KwaZulu-Natal -- Reproduction , Dolphins -- Physiology -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5878 , http://hdl.handle.net/10962/d1013178
- Description: Globally, inshore cetaceans are being threatened by a number of anthropogenic activities. The Indo-Pacific humpback dolphin, Sousa chinensis, is currently listed as ‘near threatened’ by the International Union for the Conservation of Nature (IUCN). In order to be able to advise on management and conservation strategies, knowledge on the life history of the species is required. To date very little is known about the biology of humpback dolphins. The aim of the present study was to determine basic life history parameters, including age, growth and reproduction of humpback dolphins incidentally caught in shark nets. Age was estimated by counting the growth layer groups (GLGs) in the dentine and cementum of sectioned and stained teeth. Both a Von Bertalanffy and a Gompertz growth curve fitted well to the data, but for comparison with previous studies on Sousa, the Gompertz growth function was adopted to describe the relationship between length and age for KwaZulu-Natal populations. Length at birth was estimated between 104.33 and 111.57 cm for males and females, respectively. Asymptotic length was reached at 266.48 cm and 239.29 cm for males and females, respectively. This corresponds to the attainment of physical maturity at 24 GLGs in males and 16 GLGs in females. Asymptotic mass for males could not be determined, while for females it occurred around 160 kg. The maximum age estimates and recorded lengths were 24 GLGs and 279 cm for males and 17.7 GLGs and 249 cm for females. Differences in length-at-age and mass-at-age for S. chinensis suggest sexual dimorphism. The attainment of sexual maturity in males occurred between 9 and 10 GLGs, corresponding to 230 cm total body length and 140 kg. The maximum combined testis mass of mature males comprised 0.42% of total body mass, and a roving male mating system was proposed. In females, sexual maturity occurred around 7.6 GLG, between 220 and 222 cm and 104 - 140 kg. The ovulation rate is estimated at 0.2 ovulations per annum, suggesting a calving interval of five years. It is evident from the results obtained in the present study that geographical differences exist in the life history parameters of S. chinensis. As a result, regional conservation and management strategies are imperative. Results from this study can therefore assist in assessing the status of existing population structures in the KwaZulu-Natal coastal waters, and the implementation of regional mitigation strategies to ensure the continued survival of humpback dolphins in the region.
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- Date Issued: 2014
The design of an aquaculture facility on the Keiskamma River at Hamburg, Province of the Eastern Cape
- Authors: Scholtz, Jeanne
- Date: 2014
- Subjects: Aquaculture -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/5280 , vital:20836
- Description: This dissertation addresses the nature and potential of an intrusive architectural typology in a sensitive river estuary environment through an understanding of the functional design principles of an Aquaculture plant. Furthermore the research engages with cultural, historical and sociological objectives to celebrate the historical landscape. Hamburg is caught between its value as a historic wilderness and it's need to establish and maintain an economy to alleviate poverty. The project is conceived as a provocation and speculation on how these two demands may be hybridized as an alternative to the typical conservationist practices applied. Proposing a type of hybrid ecology where industry and endemic wildlife can not only co-exist but also be mutually beneficial.
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- Date Issued: 2014
Determining guidelines for effectively leading culturally diverse teams at Volkswagen South Africa
- Authors: Nkholise, Martha
- Date: 2014
- Subjects: Diversity in the workplace -- South Africa -- Eastern Cape , Multiculturalism
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8732 , http://hdl.handle.net/10948/d1010077 , Diversity in the workplace -- South Africa -- Eastern Cape , Multiculturalism
- Description: South Africa is a society of diverse cultures, and the workplace is one of the few places that serve as a melting pot for these varied cultures. If managed well, cultural diversity has numerous benefits that can help an organisation gain a competitive advantage. However, failure to manage it can pose challenges that can have serious consequences for an organisation. The purpose of this study was to analyse the leadership of cultural diversity at Volkswagen South Africa (VWSA) and identify leadership guidelines to both enhance team performance and reduce the challenges faced by the organisation as a result of this cultural diversity. For the purpose of this study, a culturally diverse team was defined as a team of diverse individuals from different cultures or societies working together to achieve organisational success. The research was conducted by the use of questionnaire using a sample of 200 employees of the VWSA Paint Shop. The sample represents 42 percent of the total population of the Paint Shop. The study discusses the relationship of four leadership styles (Classical Leadership, Transactional Leadership, Transformational Leadership, and Visionary Leadership) with Cultural Diversity. Whilst strong cases were made for Transformational and Transactional Leadership style being the most suitable styles for leading culturally diverse teams, the researcher concluded that no single leadership style would be ideal for effectively leading culturally diverse teams at VWSA. The appropriate leadership style will instead be a hybrid of all leadership styles, thus being a leadership approach that works as a sort of “best practices” of various leadership styles.
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- Date Issued: 2014
Electrochemical behaviour of gold nanoparticles and Co tetraaminophthalocyanine on glassy carbon electrode
- Authors: Maringa, Audacity , Antunes, Edith M , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7306 , http://hdl.handle.net/10962/d1020383
- Description: We report on the electrodeposition of gold nanoparticles (AuNPs) onto the glassy carbon electrode (GCE) followed by polymerization of cobalt tetraamino phthalocyanine (CoPc(NH2)4) on top (represented as poly-CoPc(NH2)4-/AuNPs-GCE). The modified electrode where CoPc(NH2)4 is polymerized first followed by deposition of AuNPs is represented as AuNPs/poly-CoPc(NH2)4-GCE. In the absence of AuNPs, the electrode is represented as poly-CoPc(NH2)4-GCE or for AuNPs alone (AuNPs-GCE). The surface coverage was 1.5 × 10−9 mol cm−2 for AuNPs-GCE and 3.0 × 10−9 mol cm−2 for the rest of the modified electrodes. AuNPs/CoPc(NH2)4-GCE exhibited high electrocatalytic activity towards the oxidation of nitrite, with detection potential of 0.76 V. The catalytic rate constant of 3.96 × 107 cm3 mol−1 s−1 was obtained for nitrite oxidation. , Original publication is available at http://dx.doi.org/10.1016/j.electacta.2013.12.132
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