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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.
1

The evaluation of KwaZulu-Natal's priority agricultural sectors for effective export promotion / Amorie Visser

Visser, Amorie January 2012 (has links)
This study provides the strategies that can be implemented to promote the agricultural sector in KwaZulu-Natal and the theory behind economic development, as well as the importance of trade and export growth. There are restrictions in terms of trade and it is important that these are addressed before making a decision to choose a viable, potential and realistic country to export to. This study is aimed answer the research question if agriculture can be seen as a primary export sector in KwaZulu-Natal. Furthermore, this study includes background on the KwaZulu-Natal Province and mainly focus on the indicators such as GDP, employment, health issues and other indicators that will indicate that this province is of importance in South Africa in terms of the agricultural sector. This study uses SARS data to analyse and calculate the Revealed Comparative Advantage (RCA) of all agricultural products of the province. This is done to identify if there is a comparative advantage in the products studied in this study. The products of KwaZulu-Natal also show that this province’s agriculture can be seen as a primary export sector and that this sector is a major contribution to South Africa’s GDP and development. This study uses the Decision Support Model (DSM) to compare the results from the Revealed Comparative Advantage to identify the products and sectors which have the most export potential in the international market. This study reveals that the agricultural products and industries in KwaZulu-Natal with the highest overall export potential are chocolate and cocoa preps, refined soybean oil, and leather products as the three top performers among agricultural products and have the most export potential in the province. Concluding remarks are based on the findings made throughout the study. / Thesis (MCom (International Trade))--North-West University, Potchefstroom Campus, 2012
2

The evaluation of KwaZulu-Natal's priority agricultural sectors for effective export promotion / Amorie Visser

Visser, Amorie January 2012 (has links)
This study provides the strategies that can be implemented to promote the agricultural sector in KwaZulu-Natal and the theory behind economic development, as well as the importance of trade and export growth. There are restrictions in terms of trade and it is important that these are addressed before making a decision to choose a viable, potential and realistic country to export to. This study is aimed answer the research question if agriculture can be seen as a primary export sector in KwaZulu-Natal. Furthermore, this study includes background on the KwaZulu-Natal Province and mainly focus on the indicators such as GDP, employment, health issues and other indicators that will indicate that this province is of importance in South Africa in terms of the agricultural sector. This study uses SARS data to analyse and calculate the Revealed Comparative Advantage (RCA) of all agricultural products of the province. This is done to identify if there is a comparative advantage in the products studied in this study. The products of KwaZulu-Natal also show that this province’s agriculture can be seen as a primary export sector and that this sector is a major contribution to South Africa’s GDP and development. This study uses the Decision Support Model (DSM) to compare the results from the Revealed Comparative Advantage to identify the products and sectors which have the most export potential in the international market. This study reveals that the agricultural products and industries in KwaZulu-Natal with the highest overall export potential are chocolate and cocoa preps, refined soybean oil, and leather products as the three top performers among agricultural products and have the most export potential in the province. Concluding remarks are based on the findings made throughout the study. / Thesis (MCom (International Trade))--North-West University, Potchefstroom Campus, 2012
3

Bilateral processing benefit in sequentially implanted adult cochlear implant users

Oosthuizen, Ilze 09 December 2011 (has links)
Bilateral cochlear implantation is accepted medical practice since 2008 in clinically suitable adults and children to enhance bilateral processing benefits. Bilateral implantation may lead to the restoration of some bilateral hearing advantages, such as improved speech recognition in noise, localisation, head shadow effect, summation, and squelch. The majority of the advantages stated in literature, though, are characteristic of the simultaneously implanted cochlear implant population. Simultaneous implantation is not yet a reality in South Africa due to funding constraints, therefore determining the bilateral processing abilities in sequentially implanted adults is essential. Determining bilateral processing benefits achievable with sequential implantation could result in evidence-based recommendations in terms of candidacy considerations, surgery protocols, motivations for medical aid funding for simultaneous cochlear implantation, and relevant measures to determine the bilateral processing benefit attainable. Furthermore, it might enhance audiologists‟ insight regarding post-implantation performance of sequentially implanted patients and enable them to counsel prospective candidates realistically. The aaim of this study was to determine the bilateral benefit attained by sequentially implanted adults. A quantitative, cross-sectional research approach was followed in a one group post-test-only exploratory research design. A purposive convenient sampling method with specified selection criteria was used to select 11 adult clients of an established cochlear implant programme in Pretoria. Tests of sound localisation in the horizontal plane and speech perception in noise were performed. During the test of sound localisation, performance with only the first or only the second implant was found to be very similar. For the majority of participants the second cochlear implant (CI 2) was the superior performing implant during xviii speech perception in noise testing, in spatially separated speech and noise conditions where noise was directed to the first implant, as well as in spatially coincident speech and noise. A statistical significant bilateral benefit (p < 0.05) was attained by sequentially implanted adults for sound localisation. A bilateral benefit for speech perception in noise was observed when noise was directed to the first implant and in the diotic listening condition with average benefits of 1.69 dB and 0.78 dB, respectively. It was not statistically significant (p > 0.05), however, and was smaller than bilateral benefit values achieved by simultaneously implanted adults in previous studies. The head shadow effect at 180° was found to be the strongest and most robust bilateral spatial benefit. Squelch and summation benefit values ranged from negative values to 2 dB and 6 dB, respectively. This corresponded with values found in previous studies. The improvement in speech perception in spatially distinct speech and noise from adding the ear with a better SNR (signal to noise ratio) indicated that the contribution of CI 2 seems to be greater than that of CI 1 for bilateral spatial benefit. It can be concluded that adults with sequential implants may achieve some extent of bilateral benefit even with many years of unilateral implant use, when speech processors differ, when the second implant is done ≥ 10 years after the first implant, and in cases of prelingual deafness. A key benefit of sequential implantation appears to be related to the advantage of having hearing on both sides so that the ear with the more favourable environmental signalto-noise ratio is always available. AFRIKAANS : Bilaterale kogleêre inplanting is sedert 2008 aanvaarde mediese praktyk vir klinies geskikte volwassenes en kinders, ten einde bilaterale prosesseringsvoordeel te verhoog. Bilaterale inplanting kan lei tot die herstel van sommige van die voordele van bilaterale gehoor, soos verbeterde spraakherkenning in lawaai, klanklokalisering, die kopskadueffek, sommering en selektiewe onderdrukking (“squelch”). Die meeste van die voordele wat in die literatuur bespreek word, is egter kenmerkend van dié persone by wie twee kogleêre inplantings gelyktydig gedoen is. Gelyktydige inplanting is as gevolg van beperkte befondsing nog nie in Suid-Afrika 'n werklikheid nie, daarom is dit noodsaaklik om te bepaal watter bilaterale prosesseringsvoordele by opeenvolgend-geïnplanteerde volwassenes voorkom. Die bepaling van watter bilaterale prosesseringsvoordele met opeenvolgende inplanting bereik kan word, sou kon lei tot getuienis-gebaseerde aanbevelings met betrekking tot besluite oor die geskiktheid van kandidate, protokol vir sjirurgie, motiverings vir die befondsing van gelyktydige kogleêre inplantings deur mediese voorsorgfondse, en toepaslike maatstawwe om te bepaal watter mate van bilaterale prosesseringsvoordeel haalbaar sou wees. Dit sou verder oudioloë se insig kon verbreed met betrekking tot die na-operatiewe prestasie van opeenvolgend-geïnplanteerde persone en hulle sodoende in staat stel om voornemende kandidate van realistiese raad te bedien. Die doel van hierdie studie was om te bepaal wat die bilaterale prosesseringsvoordele is wat deur opeenvolgend-geïnplanteerde volwassenes verkry kan word. 'n Kwantitatiewe navorsingsbenadering met 'n dwarsprofiel van „n enkelgroep is gevolg, met 'n post-toets verkennende navorsingsontwerp. 'n Doelgerigte gerieflikheidssteekproef met 'n gespesifiseerde seleksiekriteria is gebruik om 11 volwasse kliënte van 'n gevestigde kogleêre inplantprogram in Pretoria te selekteer. Klanklokalisering in die horisontale vlak en die waarneming van spraak in lawaai is getoets. Tydens die toets vir klanklokalisering is gevind dat prestasie met slegs die eerste of slegs die tweede inplanting soortgelyk was. Vir die meeste deelnemers aan die studie het die tweede kogleêre inplanting (KI 2) die beste prestasie gelewer tydens spraakwaarneming in lawaai, in omstandighede waar spraak en lawaai ruimtelik geskei is en die lawaai op die eerste inplanting gerig is, asook in omstandighede waar spraak en lawaai ruimtelik saamvoorkomend aangebied is. 'n Statisties beduidende bilaterale voordeel (p < 0.05) is deur opeenvolgend-geïnplanteerde volwassenes vir klanklokalisering behaal. 'n Bilaterale voordeel vir spraakwaarneming in lawaai is waargeneem waar lawaai op die eerste inplanting gerig is en ook in diotiese luistertoestande, met 'n gemiddelde voordeel van 1.69 dB en 0.78 dB, onderskeidelik. Dit was egter nie statisties beduidend nie en was ook kleiner as die bilaterale voordeelwaardes wat in vorige studies deur gelyktydig-geïnplanteerde volwassenes behaal is. Die kopskadu-effek by 180° was die sterkste en mees robuuste bilaterale ruimtelike voordeel. Voordeelwaardes vir selektiewe onderdrukking en sommering het gewissel van negatiewe waardes tot 2 dB en 6 dB onderskeidelik. Dit stem ooreen met waardes wat in vorige studies gevind is. Die verbetering in spraakwaarneming in ruimtelik geskeide spraak en lawaai wat verkry is deur die oor met 'n beter STR (sein-tot-ruis ratio) by te voeg, het daarop gedui dat die bydrae van KI 2 tot bilaterale ruimtelike voordeel waarskynlik groter as die bydrae van KI 1 is. Die gevolgtrekking kan gemaak word dat volwassenes met opeenvolgende inplantings 'n mate van bilaterale voordeel verkry selfs na vele jare van unilaterale inplantingsgebruik, wanneer die spraakprosesseerders in die twee inplantings van mekaar verskil, wanneer die tweede inplanting ≥ 10 jaar na die eerste plaasvind, en in gevalle van prelinguale doofheid. 'n Sleutelvoordeel van opeenvolgende inplanting hou klaarblyklik verband met die voordeel van gehoor aan albei kante te hê sodat die oor met die gunstigste sein-tot-lawaai ratio altyd beskikbaar is. / Dissertation (MCommunication Pathology)--University of Pretoria, 2011. / Speech-Language Pathology and Audiology / Unrestricted
4

Knowledge management as a sustainable competitive advantage in the steel industry / Pieter Conradie

Conradie, Pieter Jacobus January 2010 (has links)
The aim of this study is to conduct a thorough theoretical study on the relevant aspects involved in knowledge management and organisational learning, and to assess the maturity level of knowledge management within the South African steel industry. Various aspects of knowledge, knowledge management and organisational learning with specific relation to sustainable competitive advantage are discussed in the literature study. During the literature research several factors which either promote or hinder the effective management of knowledge were identified and a list of lessons learned by other successful knowledge focused companies, are discussed. The critical success factors for a successful knowledge management program are also discussed. Knowledge can create a sustainable competitive advantage within an organisation, if successfully applied to make value adding decisions and to enable learning, and if it is applied to make decisions which are superior to that of its rivals across the supply chain. An integrated approach needs to be followed when KM is pursued and the knowledge must be applied to make value added decisions and facilitate learning across all processes in the value chain. The focus must be to retain an organisation’s tacit knowledge as this is a key success factor to ensure a sustainable competitive advantage. The study includes research on whether knowledge management is effectively used as a sustainable competitive advantage in the South African steel industry. The maturity level of the application of knowledge and learning principles implemented within the South African steel industry is assessed and compared to the maturity level of ArcelorMittal, Monlevade, located in Brazil. A survey was designed and distributed to determine the knowledge management and organisational learning maturity levels at two steel facilities of ArcelorMittal in South Africa and one facility in Brazil. The key problem areas as identified through the empirical research are discussed and it is concluded that South African facilities do not effectively use knowledge management as a sustainable competitive advantage. The maturity level of knowledge management in ArcelorMittal, South Africa is low compared to the maturity at Monlevade and rival companies such as Tata and Posco steel. A significant effort needs to be made in order to allow the effective creation, acquisition, sharing and leveraging of knowledge within the South African steel facilities. The key factors which constrain effective knowledge management is related to ineffective Human Resource policies, organisation structure, lack of knowledge exchange forums, collaboration and communication, coaching, and a lack of incentives to share tacit knowledge. It is also evident that knowledge is not seen as a sustainable competitive advantage by many respondents and that they perceive they do not have the time or capacity to transfer knowledge. Ten practical design principles were constructed and a knowledge management framework was developed to guide South African steel companies during the design and execution of a knowledge management programme which will ensure that knowledge management will result into a sustainable competitive advantage. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.
5

Knowledge management as a sustainable competitive advantage in the steel industry / Pieter Conradie

Conradie, Pieter Jacobus January 2010 (has links)
The aim of this study is to conduct a thorough theoretical study on the relevant aspects involved in knowledge management and organisational learning, and to assess the maturity level of knowledge management within the South African steel industry. Various aspects of knowledge, knowledge management and organisational learning with specific relation to sustainable competitive advantage are discussed in the literature study. During the literature research several factors which either promote or hinder the effective management of knowledge were identified and a list of lessons learned by other successful knowledge focused companies, are discussed. The critical success factors for a successful knowledge management program are also discussed. Knowledge can create a sustainable competitive advantage within an organisation, if successfully applied to make value adding decisions and to enable learning, and if it is applied to make decisions which are superior to that of its rivals across the supply chain. An integrated approach needs to be followed when KM is pursued and the knowledge must be applied to make value added decisions and facilitate learning across all processes in the value chain. The focus must be to retain an organisation’s tacit knowledge as this is a key success factor to ensure a sustainable competitive advantage. The study includes research on whether knowledge management is effectively used as a sustainable competitive advantage in the South African steel industry. The maturity level of the application of knowledge and learning principles implemented within the South African steel industry is assessed and compared to the maturity level of ArcelorMittal, Monlevade, located in Brazil. A survey was designed and distributed to determine the knowledge management and organisational learning maturity levels at two steel facilities of ArcelorMittal in South Africa and one facility in Brazil. The key problem areas as identified through the empirical research are discussed and it is concluded that South African facilities do not effectively use knowledge management as a sustainable competitive advantage. The maturity level of knowledge management in ArcelorMittal, South Africa is low compared to the maturity at Monlevade and rival companies such as Tata and Posco steel. A significant effort needs to be made in order to allow the effective creation, acquisition, sharing and leveraging of knowledge within the South African steel facilities. The key factors which constrain effective knowledge management is related to ineffective Human Resource policies, organisation structure, lack of knowledge exchange forums, collaboration and communication, coaching, and a lack of incentives to share tacit knowledge. It is also evident that knowledge is not seen as a sustainable competitive advantage by many respondents and that they perceive they do not have the time or capacity to transfer knowledge. Ten practical design principles were constructed and a knowledge management framework was developed to guide South African steel companies during the design and execution of a knowledge management programme which will ensure that knowledge management will result into a sustainable competitive advantage. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.
6

Managing mobile learning in a higher education environment / Olivier V.

Olivier, Vanessa January 2011 (has links)
The aim of this study is to conduct a thorough theoretical study on mobile learning (mlearning) in order to achieve the primary objective of the study which is to develop a general framework to implement and manage mobile technologies in a higher education environment. The focus of the literature study was to research the state of mobile technologies and their relevance to teaching and learning. The literature study investigate the implications of mobile technologies for students, lecturers and thus for the institution and provided an overview of frameworks found in literature with the emphasis on the management of m–learning within the higher education institution. M–learning is part of a new mobile conception of society, with the mobility of the technologies impacting on the mobility of the students, the lecturers and ultimately on the mobility of higher education. Literature suggests that, while m–learning is proving to be innovative, the factors that most strongly impact on the ultimate success or failure of mlearning will depend on human factors, the balancing of technological ideals and pedagogical imperatives, and the successful management of the interface between human educational systems and technology systems. The proposed general framework focuses on addressing key issues related to m–learning from the perspective of the student, the lecturer and thus the institution. In order to remain competitive higher education needs to be diligent in maintaining the complex technology infrastructure that supports a thriving mobile culture that will meet and exceed the expectations of both lecturers and students. The empirical research conducted had as objectives to investigate the mobile technology assets of respondents with regard to the hardware and the software that they own, the mobile technology actions of respondents in regard to what they do with the mobile technology that they own and to investigate the respondent's attitude towards mobile technologies. A survey was designed and distributed to a sampling of the academic staff and students of the North–West University (NWU) in South Africa, specifically the Potchefstroom Campus. There is ample proof from the empirical study that there is a gap with regard to the level of accessibility, usage, and attitude with regards to the different interest groups in the higher education environment. Higher education institutions should invest in investigating these gaps further and in leveraging off the benefits of the effective management of these technologies to improve teaching and learning. The final chapter concludes with a summary of the secondary objectives researched in the literature (Chapter two) and empirical research (Chapter three) chapters in order to support recommendations towards the primary objective of this study. The rapid pace of adoption and advancement of mobile technologies creates opportunities for new and innovative services provided through such mobile devices. Higher education finds itself in the early innings of the mobile Internet pulling both lecturers and students towards the same place: smaller, faster, cheaper devices working together in a web of connectivity. Recommendations were made in this final chapter on how higher education institutions can leverage the benefits of the effective management of mobile technologies to improve teaching and learning. M–learning has the potential to increase the capacity of higher education through improving efficiency and productivity of teaching and learning. Mlearning could address challenges related to quality of teaching such as continuous professional training, lifelong upgrading, connecting with academics worldwide and communicating effectively with students. Higher education is discovering the potential of mlearning to promote student engagement and improving the quality of learning. Management of higher education institutions and systems, management of policymaking including storage and analysis of data, construction and assessment of policy scenarios, and tracer studies or academic tracking systems can be improved through the use of m–learning. Mobile technologies will continue to increasingly become an integral part of students' and lecturers' private and day to day lives and m–learning will be integral in educational content delivery. Additional research is required to study the effective and optimal implementation of m–learning. A better understanding of the benefits and leverage thereof is required and additional research should provide answers to these questions. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.
7

Managing mobile learning in a higher education environment / Olivier V.

Olivier, Vanessa January 2011 (has links)
The aim of this study is to conduct a thorough theoretical study on mobile learning (mlearning) in order to achieve the primary objective of the study which is to develop a general framework to implement and manage mobile technologies in a higher education environment. The focus of the literature study was to research the state of mobile technologies and their relevance to teaching and learning. The literature study investigate the implications of mobile technologies for students, lecturers and thus for the institution and provided an overview of frameworks found in literature with the emphasis on the management of m–learning within the higher education institution. M–learning is part of a new mobile conception of society, with the mobility of the technologies impacting on the mobility of the students, the lecturers and ultimately on the mobility of higher education. Literature suggests that, while m–learning is proving to be innovative, the factors that most strongly impact on the ultimate success or failure of mlearning will depend on human factors, the balancing of technological ideals and pedagogical imperatives, and the successful management of the interface between human educational systems and technology systems. The proposed general framework focuses on addressing key issues related to m–learning from the perspective of the student, the lecturer and thus the institution. In order to remain competitive higher education needs to be diligent in maintaining the complex technology infrastructure that supports a thriving mobile culture that will meet and exceed the expectations of both lecturers and students. The empirical research conducted had as objectives to investigate the mobile technology assets of respondents with regard to the hardware and the software that they own, the mobile technology actions of respondents in regard to what they do with the mobile technology that they own and to investigate the respondent's attitude towards mobile technologies. A survey was designed and distributed to a sampling of the academic staff and students of the North–West University (NWU) in South Africa, specifically the Potchefstroom Campus. There is ample proof from the empirical study that there is a gap with regard to the level of accessibility, usage, and attitude with regards to the different interest groups in the higher education environment. Higher education institutions should invest in investigating these gaps further and in leveraging off the benefits of the effective management of these technologies to improve teaching and learning. The final chapter concludes with a summary of the secondary objectives researched in the literature (Chapter two) and empirical research (Chapter three) chapters in order to support recommendations towards the primary objective of this study. The rapid pace of adoption and advancement of mobile technologies creates opportunities for new and innovative services provided through such mobile devices. Higher education finds itself in the early innings of the mobile Internet pulling both lecturers and students towards the same place: smaller, faster, cheaper devices working together in a web of connectivity. Recommendations were made in this final chapter on how higher education institutions can leverage the benefits of the effective management of mobile technologies to improve teaching and learning. M–learning has the potential to increase the capacity of higher education through improving efficiency and productivity of teaching and learning. Mlearning could address challenges related to quality of teaching such as continuous professional training, lifelong upgrading, connecting with academics worldwide and communicating effectively with students. Higher education is discovering the potential of mlearning to promote student engagement and improving the quality of learning. Management of higher education institutions and systems, management of policymaking including storage and analysis of data, construction and assessment of policy scenarios, and tracer studies or academic tracking systems can be improved through the use of m–learning. Mobile technologies will continue to increasingly become an integral part of students' and lecturers' private and day to day lives and m–learning will be integral in educational content delivery. Additional research is required to study the effective and optimal implementation of m–learning. A better understanding of the benefits and leverage thereof is required and additional research should provide answers to these questions. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.

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