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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
331

The fitting of statistical distributions to wind data in coastal areas of South Africa

Moodley, Kirshnee January 2012 (has links)
Coastal South African cities like Port Elizabeth are said to have a strong potential for wind energy. This study aims to model wind data in order to be able assess the power potential belonging to a given site. The main challenge in modelling wind direction data is that it is categorized as circular data and therefore requires special techniques for handling that are different from usual statistical samples. Statistical tools such as descriptive measures and distribution fitting, were re-invented for directional data by researchers in this field. The von Mises distribution is a predominant distribution in circular statistics and is commonly used to describe wind directions. In this study, the circular principles described by previous researchers were developed by using the statistical software, Mathematica. Graphical methods to present the wind data were developed to give an overview of the behaviour of the winds in any given area. Data collected at Coega, an area near Port Elizabeth, South Africa, was used to illustrate the models which were established in this study. Circular distributions were fit to the directional data in order to make appropriate conclusions about the prevailing wind directions in this area.
332

Fundamental movement skill proficiency status of girls aged 9-to-12 years from previously disadvantaged communities in Nelson Mandela Bay

Kahts, Samantha Andrea January 2014 (has links)
Problem Statement A lack of fundamental movement skill (FMS) proficiency in children can contribute to decreased physical activity (PA) levels, increased adiposity and poor acquisition of specialised sport specific movement skills. To prevent the latter, the identification of FMS status in early and middle childhood years is needed for targeted and specific interventions. Against the backdrop of physical education being omitted from the South African school curriculum, the presence of a patriarchal society, gender sporting stereotyping, high levels of unemployment and low education levels; the assessment of FMS status is particularly warranted. Aim of Study The primary aim of this study was to assess the FMS proficiency of girls aged 9-to-12 years from previously disadvantaged communities within Nelson Mandela Bay. Methodology A descriptive-exploratory-contextual study design, employing quantitative assessment techniques, was utilized. The sample comprised of 227 girls. Convenience sampling was employed. Testing consisted of FMS proficiency tests in the 20m and 40m sprint, standing long jump, throwing for distance, catching, static balance and throwing for accuracy. FMS process scores were assessed with the body component (BC) and Test of Gross Motor Development II (TGMD II) approaches. Anthropometric measurements of the standing and seated height, mass, arm span and leg length were additionally measured. Microsoft Excel® and Statistica® were used for descriptive and inferential statistical analysis. In the case of significant ANOVA results, the Scheffe post hoc test was used for pairwise comparisons. Statistical significance was set at p<.05 and practical significance (Cohen’s d) was set at d>.2. Pearson Correlation Coefficient identified statistical and practical correlations between two variables and chi square was applied to indicate differences in frequency distribution tables. Cramer’s V values were applied to determine practical significance in the case where statistical significant differences were identified between sets of frequency distributions The BC approach indicated that most participants could not proficiently perform the run for speed (94.71 percent), standing long jump (96.9 percent) or throw for distance (83.56 percent). Only the catch was performed proficiently (91.19 percent). TGMD II results for the present study indicated that participants’ run for speed (100 percent) and catch (96.92 percent) were performed proficiently and their standing long jump (93.78 percent) and throw for distance (83.56 percent) process scores were performed least proficiently. Only the catch composite BC scores had a statistically (df=1.31; f=3.24; p=.024) and practically significant (d=0.82) improvement in the BC scores between the age groups 9 and 12 years. Only the standing long jump, throw for distance and throw for accuracy product scores improved statically and practically significantly with aging (p<.05; d>.2). Hence the further participants jumped, the faster they ran. Standing and seated height, weight and arm span improved statistically and practically significantly with age (p<.05; d>.2). All anthropometric variables, except for leg length, had a positive medium correlation (r=.335 to r=.439) with balance errors and this was only in 12 year olds. The throw for distance product scores had a medium correlation to seated height (r=.32) and arm span (r=.33). The run for speed had a medium correlation (r=.313) with mass. According to the IOTF classifications 24.67 percent of children were overweight and 7.49 percent of children were obese. Statistically significant differences were found for the run for speed (df=224; f=27.07; p=2.9E-11) and standing long jump (df=224; f=15.68; p=4.2E-07) when comparing product scores to normal weight, overweight and obese participants. These differences were furthermore found to be of medium to large practical significance between the normal and obese participants for the run for speed (d=0.61 to d=1.77) and Standing Long Jump (d=0.40 to d=1.33). On average 50 percent and 55 percent of participants partook 60 minutes or more of PA after school on week days and on weekend’s respectively. This PA consisted mostly of running and ball games. Only 10 percent of participants had commenced with menarche Conclusion Findings have highlighted the need for specifically targeted FMS interventions at an early age in female learners from previously disadvantaged communities. Both a product and process FMS assessment is warranted as this facilitates deductions about movement proficiency levels. A FMS proficiency assessment protocol is needed for South African children which is internationally comparable. Childhood overweight and obesity impacts FMS proficiency and should be addressed in future research. Cultural norms, gender stereotypes and sport management structures at primary school level seem to be affecting FMS proficiency and should be addressed in future research
333

Business incubation in the Eastern Cape: a case study

Chandler, Leonard Mark January 2013 (has links)
Business incubation is a concept that describes a business development process that is used to grow successful, sustainable entrepreneurial ventures that will contribute to the health and wealth of local, regional and national economies. Incubators provide a place for businesses to build their foundations. Business incubators use a combination of physical space, resources and services to facilitate and develop businesses, enhance their progress, break down barriers to success, reduce risks and increase the potential for successful survival of early stage ventures., their progress, break down barriers to success, reduce risks and increase the potential for successful survival of early stage ventures. Business incubators are part of a larger value chain that connects enterprises to a vital support system. Most incubators connect their clients to local service providers (such as lawyers, corporate service providers or accountants) and establish relationships that will last after the firm leaves the incubator. Once an enterprise is ready to leave the incubator environment, it will need space to move into, which in turn, boosts property development and leasing. Because of the enhanced credibility of the business incubation process, landlords would be more confident as a stable, growing business can be a reliable tenant. The empirical object of the study is the Seda NMB ICT Incubator in Port Elizabeth. Eastern Cape. Like any other business an incubator is created to deliver a service or product for as long as possible and in this process must create value because the ultimate objective of any profit seeking business is to create wealth for its owners with due consideration of all its stakeholders (Brigham & Ehrhardt 2005:7-12). A preliminary investigation of the Seda NMB ICT Incubator raised the question whether the operation of this incubator meets the performance standards as identified in the international literature. The purpose of this study is therefore to establish whether the performance of the Seda NMB ICT Incubator is in line with generally accepted performance standards. At this stage the standards can be identified as a strategic alliance of the business (vision, mission and strategy), financing principles, management principles and human resource development and growth opportunities. The SEDA NMB ICT Incubator is financed as follows: Partly by the Department of Trade and Industry (the SEDA technology programme) and partly by the Nelson Mandela Bay Metropolitan Municipality. It is recommended that public/private partnerships should be formed to ensure the continuity of the Port Elizabeth incubator. A second recommendation is that the SEDA NMB Incubator becomes more focussed in terms of its clients it is serving. At present it is serving a wide variety of ICT clients ranging from website design, graphic art to preparing business plans for ICT businesses. The period of incubation may be too extended as some incubatees have been on the premises for more than five years. It is recommended that the SEDA NMB Incubator pays attention to the length of stay of an incubatee. The vast majority of the incubatees on the SEDA NMB Incubator premises are not compliant with business acts and regulations. Seven incubatees reported during the personal interview that they were not compliant with all the acts and regulations.
334

Perceptions on future fulfilment of visually impaired adolescent learners at the Khanyisa Special School

Ciyana, Nontobeko Minica January 2008 (has links)
This research focuses on the perceptions of future fulfilment of visually impaired adolescent learners at the Khanyisa Special School. The qualitative research was undertaken at the selected special school, which is situated in Nelson Mandela Bay in the western region of the Eastern Cape Province of South Africa, with ten learners, ten parents and five teachers as participants. The concluding chapter suggests ways and recommendations to assist the visually impaired adolescent learners at the Khanyisa Special School financially and academically.
335

Uitdagings tot skooldissipline, die rol van waardes en karakteropvoeding by sekere hoërskole in Port Elizabeth

Swartz, Jan January 2014 (has links)
This study is aimed at determining the challenges relevant to discipline in schools, the causes for these challenges, the role of values in connection with discipline and the intervention methods and strategies that could solve these challenges. Communities, societies, governmental and non-governmental organizations all over the world are value-driven. The challenges in relation to discipline that currently exist in schools, could be seen as coming from societies. There are general attacks on “common sense” and “common values”. It seems that low academic achievements can be linked to moral degeneration and the only solution is moral education. In the light thereof, discipline has to do with order and behavior that is acceptable. We have therefore tried to establish what the challenges in relation to high schools are, and whether the values that have been taught and modeled contribute towards the quality of being disciplined and how the challenges to discipline are being addressed. Character education is highly rated because it helps with prevention of discipline problems and contributes towards a positive environment that promotes a positive attitude. Many teachers in South-Africa experience challenges to discipline in the classroom environment brought about by many factors. Despite the challenges there is little support from the relevant governmental departments. After the abolishment of corporal punishment which used to work as the most effective method, no alternatives were provided. Educators have to lean on their own reactive methods to manage attitude problems in class. It also seems that educators are not trained by the Department of Education to implement the newer discipline strategies. Teachers apply discipline based on their own personal teaching philosophies that seems right and acceptable to them. The study tries to establish which intervention strategies could best address the challenges in schools. The study follows a mixed (qualitative and quantitative) approach which uses an embedded design. The embedded design consists of a primary method that leads the research project. In this instance the primary method is qualitative while the secondary data are quantitative which plays a supporting role. The secondary methods which are quantitative are not prioritized but it is embedded. The datacollecting instruments which have been used for this study are questionnaires, focus group and personal interviews, The primary goal of this study is to determine what the main challenges are in South Africa that result in discipline are being challenged, being threatened and pressurised. To achieve the main goal it is necessary that the researcher determines through literature study how the term “discipline” has been historically understood, interpreted and managed, as there was a shift in emphasis on how the term “discipline” was understood 30 years ago compared to today. The researcher has done a complete literature study to determine what current, relevant literature sees as current challenges in relation to discipline and what has been done to solve it. The researcher gathers information through data-collecting to determine which challenges currently exist at schools. Research has been done on current solutions and intervention methods to determine if there are intervention methods that can deal with these challenges more effectively. The study also tried to research new intervention methods. The empirical study and also the literature study acknowledge that challenges according to discipline exists, that there are a link between discipline and values, that the teaching of values positively influences school communities and that intervention methods and techniques that exists are not effective
336

The fitting of statistical distributions to wind data in coastal areas of South Africa

Moodley, Kirshnee January 2013 (has links)
Coastal South African cities like Port Elizabeth are said to have a strong potential for wind energy. This study aims to model wind data in order to be able assess the power potential belonging to a given site. The main challenge in modelling wind direction data is that it is categorized as circular data and therefore requires special techniques for handling that are different from usual statistical samples. Statistical tools such as descriptive measures and distribution fitting, were re-invented for directional data by researchers in this field. The von Mises distribution is a predominant distribution in circular statistics and is commonly used to describe wind directions. In this study, the circular principles described by previous researchers were developed by using the statistical software, Mathematica. Graphical methods to present the wind data were developed to give an overview of the behaviour of the winds in any given area. Data collected at Coega, an area near Port Elizabeth, South Africa, was used to illustrate the models which were established in this study. Circular distributions were fit to the directional data in order to make appropriate conclusions about the prevailing wind directions in this area.
337

The making of an African working class: Port Elizabeth 1925-1963

Cherry, Janet January 1992 (has links)
Bibliography: pages 231-239. / The thesis examines the 'making' of an african working class in Port Elizabeth. It offers an alternative interpretation to conventional histories which emphasize continuity both in the idea of a strong industrial working class and in a tradition of militant and effective worker organisation. At the same time, it posits the idea that there was a working-class movement which developed among Port Elizabeth's african community in the late 1940's and 1950's. Chapter 1 examines population growth in Port Elizabeth, the growth of secondary industry, and employment opportunities for africans. It is argued that limited opportunities for african employment in secondary industry affected the forms of working-class organisation that emerged. Chapter 2 examines the situation of the urban african population in the 1920's and 1930's, looking at factors which influenced its organisation and consciousness. The low wages paid to african workers were not challenged effectively in this period by the Industrial and Commercial Workers Union which had declined by the mid-1920's, or the Trades and Labour Council which did not organise african workers. However, the permanently urbanised status of the majority of the african population laid the basis for a militant community consciousness. Chapter 3 analyses attempts to organise african workers during the Second World War. It focusses on Wage Board determinations. the first african trade unions formed by the Ballingers and Max Gordon, the organisation of the Council of Non-European Trade Unions and the Trades and Labour Council, and the organisation of railway workers. It is argued that these attempts at organising african labour were largely unsuccessful in building strong industrial unions with an african leadership. Chapter 4 looks at the rise of the 'new unions' in the post-war period, when african workers were drawn into manufacturing on a large scale, and an african working-class leadership began to emerge. The response to this from the state, capital and other trade unions is examined through looking at the struggles of workers in four sectors: stevedoring, laundry, textiles and food. These sectors are contrasted with the tertiary sector where organisation of african workers was weak. Chapter 5 examines the politics of reproduction of the african working class between 1 945 and 1960. It looks at changes in the nature of the African National Congress and the Communist Party of South Africa, and at innovative strategies around issues of reproduction. The role of women's organisation and their struggle against the extension of pass laws is highlighted, and it is posited that a working class movement developed in this period. Chapter 6 analyses the application of influx control in Port Elizabeth in the 1950's, and the conflict of interests over the implementation of the labour bureau system. It examines the divisions in the african working class between migrants and non-migrants, and the response of different sections of the working class. Chapter 7 looks at the role of the South African Congress of Trade Unions. It is argued that the integration of point-of-production struggles with community and political struggles was the outcome of the position of african workers in industry combined with strong political organisation in the 'sphere of reproduction'. Changes in the structural position of african workers combined with political repression led to the collapse of this working class movement in the early 1960's.
338

Staging Port Operations and Terminal Area Assessment for Offshore Wind Construction

Lai, Chia Wei January 2024 (has links)
This thesis examines the pivotal role of port infrastructure in supporting offshore wind project development, with a focus on the strategic significance of port operation and storage. This study addresses the challenges of evaluating port area demand, complicated by the intricate and dynamic nature of the construction and logistical operations associated with offshore wind development. Through a comprehensive approach that includes a literature review on diverse roles of ports, analysis of port operations for key turbine components, and formulation of an assessment model to estimate port area demand, this research offers insights into the logistical and operational needs of ports in the offshore wind sector. A significant highlight of this study is the consideration of the temporal influence on port demand, a crucial factor stemming from the continuous loading and unloading activities at the port. In addition to port terminal area, hard criteria such as water depth, quay length, and load-bearing capacity are also examined. The findings underscore the connection between port infrastructure and the efficient operation of offshore wind farms. It highlights the need for synchronized coordination between the transport rate of components and offshore installation activities, to meet the specific demands of port infrastructure. Furthermore, the thesis explores these findings in the context of port development, identifying key requirements, challenges, and opportunities within the sector and offering a forward-looking perspective on the industry. This perspective considers the emerging trends, technological advancements, and innovative practices in offshore wind and their implications for port development. In conclusion, the research emphasizes the critical importance of understanding and meeting port specification requirements for the successful execution of offshore wind projects. It calls for continuous research and development efforts to improve the accuracy of estimating port infrastructure enhancement needs, in support of the growing offshore wind industry.
339

A Plan for Improving the Physical-Education Program for Boys in the Port Neches Junior High School

Mershon, Leonard W. 08 1900 (has links)
The purpose of this study is to formulate recommendations for the improvement of the program in health and physical education for boys in the Port Neches, Texas, Junior High School.
340

The feasability of implementing community based care for moderately mentally-retarded persons in a specific centre in Port Elizabeth

Ngcanga, Nosipho Margaret 11 1900 (has links)
The purpose of this study was to investigate the possibility of implementing community based care for moderately mentally retarded persons in a specific centre in the Port Elizabeth area. The objectives of the study were to identify • the needs of the moderately mentally retarded children. • the physical, psychosocial and vocational rehabilitation means of meeting these needs. • how involved the communities, parents and government were in the care of moderately mentally retarded children. A quantitative, exploratmy and descriptive design was used. A sample of 50 moderately mentally retarded children was utilised. Data were collected by means of questionnaires and semi-structured interviews. The major research findings indicate that community care for MMRPs could only be feasible with sufficient resources, expertise and community involvement. All these aspects appeared to be lacking in the centre where this research was conducted raising questions as to benefits which the mentally retarded children and their parents and the community could derive from these services. However recommendations were made on identified shortcomings, problems and needs. / Health Science / M.A.(Nursing Science)

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