From physics to music: an analysis of the role of overtones in the improvement of choral tone
- Authors: Starker, Leonard Bonn
- Date: 2011
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8502 , http://hdl.handle.net/10948/1650
- Description: Numerous studies exist examining the link in solo singers between timbre and overtone spectra. The purpose of this study is to examine if similar results can be obtained by applying the same techniques to choral singing. The study is aimed at non-scientific readers and therefore introduces the subject with background to the relevant physics. In this study a number of recorded samples of choirs were taken from www.youtube.com and analyzed. The analysis included computation of long-term average spectra (LTAS) and singing power ratio‟s (SPR), which provided an indication of the relative energy in the higher overtone region of every choir. This was compared to a binary value judgment of the choirs. The results indicate that the SPR as applied to soloists cannot be directly applied to choirs. A link between SPR and a perceived “good” choral tone could exist but would have to be interpreted differently than in the case of soloists. It was also found that a possible link could exist between frequency peaks in LTAS and a choir's intonation.
- Full Text:
- Date Issued: 2011
- Authors: Starker, Leonard Bonn
- Date: 2011
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8502 , http://hdl.handle.net/10948/1650
- Description: Numerous studies exist examining the link in solo singers between timbre and overtone spectra. The purpose of this study is to examine if similar results can be obtained by applying the same techniques to choral singing. The study is aimed at non-scientific readers and therefore introduces the subject with background to the relevant physics. In this study a number of recorded samples of choirs were taken from www.youtube.com and analyzed. The analysis included computation of long-term average spectra (LTAS) and singing power ratio‟s (SPR), which provided an indication of the relative energy in the higher overtone region of every choir. This was compared to a binary value judgment of the choirs. The results indicate that the SPR as applied to soloists cannot be directly applied to choirs. A link between SPR and a perceived “good” choral tone could exist but would have to be interpreted differently than in the case of soloists. It was also found that a possible link could exist between frequency peaks in LTAS and a choir's intonation.
- Full Text:
- Date Issued: 2011
Fictional representations of trauma in Elias Canetti’s novel Auto-da-Fé
- Authors: Buczynski, Jennifer Ann
- Date: 2011
- Subjects: Violence in literature , Literature and society , Fictitious characters
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8447 , http://hdl.handle.net/10948/d1008062 , Violence in literature , Literature and society , Fictitious characters
- Description: This dissertation examines Elias Canetti‟s novel, Auto-da Fé, in an attempt to show how it depicts the manifestations of violence and the effects of traumaon the individual and on modernist society. This analysis of Auto-da Fé concentrates on the representation of trauma on a fictional level at a time when Europe was experiencing political, social and economic upheaval after the First World War. Auto-da Fé provides an intense emphasis on the psychological effects of trauma on the characters; thereby reflecting the turmoil of this period. An analysis of Canetti‟s novel, in the light of trauma, reveals an enigmatic testimony not only to the nature of violent events, but of the way trauma resists simple comprehension. I argue that this gives rise to complexities within the narration by tracing the insistently recurring words and symbols which point to an interpretation beyond the thematic content of the text, namely one which repetitively bears witness to hidden wounds within individual consciousness. The titles of the three parts of Auto-da-Fé reflect a condition of somatic and sychosomatic dislocation: “A Head without a World”, “Headless World”, and “The World in the Head”. My argument is that the fictional trauma in Canetti‟s novel contains several characters who suffer from a breach of the self and the inability to comprehend society. The inability to fit into society results in the protagonist creating an isolated refuge in order to protect himself from the outer world. However, his alienation exacerbates his physical and emotional dislocations and ultimately leads to his destruction.
- Full Text:
- Date Issued: 2011
- Authors: Buczynski, Jennifer Ann
- Date: 2011
- Subjects: Violence in literature , Literature and society , Fictitious characters
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8447 , http://hdl.handle.net/10948/d1008062 , Violence in literature , Literature and society , Fictitious characters
- Description: This dissertation examines Elias Canetti‟s novel, Auto-da Fé, in an attempt to show how it depicts the manifestations of violence and the effects of traumaon the individual and on modernist society. This analysis of Auto-da Fé concentrates on the representation of trauma on a fictional level at a time when Europe was experiencing political, social and economic upheaval after the First World War. Auto-da Fé provides an intense emphasis on the psychological effects of trauma on the characters; thereby reflecting the turmoil of this period. An analysis of Canetti‟s novel, in the light of trauma, reveals an enigmatic testimony not only to the nature of violent events, but of the way trauma resists simple comprehension. I argue that this gives rise to complexities within the narration by tracing the insistently recurring words and symbols which point to an interpretation beyond the thematic content of the text, namely one which repetitively bears witness to hidden wounds within individual consciousness. The titles of the three parts of Auto-da-Fé reflect a condition of somatic and sychosomatic dislocation: “A Head without a World”, “Headless World”, and “The World in the Head”. My argument is that the fictional trauma in Canetti‟s novel contains several characters who suffer from a breach of the self and the inability to comprehend society. The inability to fit into society results in the protagonist creating an isolated refuge in order to protect himself from the outer world. However, his alienation exacerbates his physical and emotional dislocations and ultimately leads to his destruction.
- Full Text:
- Date Issued: 2011
The nexilitas factor: host-guest relationships in small owner managed commercial accommodation facilities in contemporary South Africa
- Von Lengeling, Volkher Heinrich Christoph
- Authors: Von Lengeling, Volkher Heinrich Christoph
- Date: 2011
- Subjects: Hospitality industry -- South Africa Interpersonal relations Social interaction Liminality Consumer behavior Home-based businesses -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2093 , http://hdl.handle.net/10962/d1002656
- Description: The commercialization of hospitality established arguably the oldest profession. Historically small commercial hospitality establishments, known as inns in the western world, were of ill repute. Perhaps connected to their reputation, this category of accommodation facility has been seriously neglected as an area of academic inquiry, particularly from the perspective of the host. While there has been a huge growth in the interdisciplinary field of tourism studies in recent decades, little attention has been paid to the role of the host in the host-guest relationship at whatever level of analysis. This thesis seeks to redress the balance. Hospitality is a basic form of social bonding. This type of bonding, where a hierarchy between strangers is implicit (as with hosts and guests), may be termed ‘nexilitas’; nexilitas is a form of social bonding in liminal circumstances. To that extent it is comparable to ‘communitas’ which describes social bonding between equals in certain liminal circumstances. The difference is that nexilitas is a form of bonding between individuals in a complex power relationship. The host controls the hospitality space, but custom also empowers the guest with certain expectations, especially in the commercial context. The thesis identifies the various forms of hospitality – traditional ‘true’ or ‘pure’ hospitality, social hospitality, cultural hospitality and commercial hospitality – and discusses these critically in their historical and cross-cultural contexts, with emphasis on the perspective of the host. The passage of hospitality is then traced through the three phases of preliminality, liminality and post-liminality and discussed along the themes anticipation, arrival and accommodation and finally departure of the guest. While the historical and ethnographic review is mainly based on written histories and the experiences of other anthropologists as guests as well as ethnographers, the passage of hospitality draws on the multi-sited auto-anthropological experiences of the author, both as host and as ethnographer of contemporary South African hosts in small owner-managed commercial hospitality establishments.
- Full Text:
- Date Issued: 2011
- Authors: Von Lengeling, Volkher Heinrich Christoph
- Date: 2011
- Subjects: Hospitality industry -- South Africa Interpersonal relations Social interaction Liminality Consumer behavior Home-based businesses -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2093 , http://hdl.handle.net/10962/d1002656
- Description: The commercialization of hospitality established arguably the oldest profession. Historically small commercial hospitality establishments, known as inns in the western world, were of ill repute. Perhaps connected to their reputation, this category of accommodation facility has been seriously neglected as an area of academic inquiry, particularly from the perspective of the host. While there has been a huge growth in the interdisciplinary field of tourism studies in recent decades, little attention has been paid to the role of the host in the host-guest relationship at whatever level of analysis. This thesis seeks to redress the balance. Hospitality is a basic form of social bonding. This type of bonding, where a hierarchy between strangers is implicit (as with hosts and guests), may be termed ‘nexilitas’; nexilitas is a form of social bonding in liminal circumstances. To that extent it is comparable to ‘communitas’ which describes social bonding between equals in certain liminal circumstances. The difference is that nexilitas is a form of bonding between individuals in a complex power relationship. The host controls the hospitality space, but custom also empowers the guest with certain expectations, especially in the commercial context. The thesis identifies the various forms of hospitality – traditional ‘true’ or ‘pure’ hospitality, social hospitality, cultural hospitality and commercial hospitality – and discusses these critically in their historical and cross-cultural contexts, with emphasis on the perspective of the host. The passage of hospitality is then traced through the three phases of preliminality, liminality and post-liminality and discussed along the themes anticipation, arrival and accommodation and finally departure of the guest. While the historical and ethnographic review is mainly based on written histories and the experiences of other anthropologists as guests as well as ethnographers, the passage of hospitality draws on the multi-sited auto-anthropological experiences of the author, both as host and as ethnographer of contemporary South African hosts in small owner-managed commercial hospitality establishments.
- Full Text:
- Date Issued: 2011
The empowerment of women in agriculture: does it contribute to poverty alleviation and improvement of quality of lives in rural areas?
- Authors: Kalazani-Mtya, Lindeka
- Date: 2011
- Subjects: Women in rural development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Land tenure -- South Africa -- Eastern Cape , Women in agriculture -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Quality of life -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11941 , http://hdl.handle.net/10353/318 , Women in rural development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Land tenure -- South Africa -- Eastern Cape , Women in agriculture -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Quality of life -- South Africa -- Eastern Cape
- Description: This study examines the extent to which the Siyazondla food programme, which is a woman based project, empowers women with agricultural skills and knowledge to alleviate poverty and improve their quality of lives in Ducats North area in East London. The investigation is based on the argument that when a woman is empowered, poverty will be reduced and the quality of life will improve. Through the use of qualitative research methodology, all women who are the main beneficiaries of the Siyazondla programme in Ducats North village were interviewed. Findings seem to indicate that although women in the project manage to produce good crops to feed their families, they are still not sufficiently empowered with skills and education to improve their quality of lives. This was found to be exacerbated by the fact that the officials assigned for the programme are to a greater extent inefficient and lack relevant knowledge to support beneficiaries. Most importantly, it was revealed that there is lack of monitoring and evaluation of the programme by government and this was considered to be the major constraint to successful implementation of the programme and in ensuring that poverty is alleviated in the area. It is on the basis of these findings that the study recommends that in order to yield positive results and ensure that women in the programme are empowered, there is a need to change the deeply embedded patriarchal perceptions and discriminatory practices and attitudes that seem to undervalue women‟s work. This will require greater awareness of women‟s contribution to agriculture, and the recognition of the role played by women in food security and poverty alleviation, coupled with a strong commitment from the government to empower rural women in agriculture.
- Full Text:
- Date Issued: 2011
- Authors: Kalazani-Mtya, Lindeka
- Date: 2011
- Subjects: Women in rural development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Land tenure -- South Africa -- Eastern Cape , Women in agriculture -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Quality of life -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11941 , http://hdl.handle.net/10353/318 , Women in rural development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Land tenure -- South Africa -- Eastern Cape , Women in agriculture -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Quality of life -- South Africa -- Eastern Cape
- Description: This study examines the extent to which the Siyazondla food programme, which is a woman based project, empowers women with agricultural skills and knowledge to alleviate poverty and improve their quality of lives in Ducats North area in East London. The investigation is based on the argument that when a woman is empowered, poverty will be reduced and the quality of life will improve. Through the use of qualitative research methodology, all women who are the main beneficiaries of the Siyazondla programme in Ducats North village were interviewed. Findings seem to indicate that although women in the project manage to produce good crops to feed their families, they are still not sufficiently empowered with skills and education to improve their quality of lives. This was found to be exacerbated by the fact that the officials assigned for the programme are to a greater extent inefficient and lack relevant knowledge to support beneficiaries. Most importantly, it was revealed that there is lack of monitoring and evaluation of the programme by government and this was considered to be the major constraint to successful implementation of the programme and in ensuring that poverty is alleviated in the area. It is on the basis of these findings that the study recommends that in order to yield positive results and ensure that women in the programme are empowered, there is a need to change the deeply embedded patriarchal perceptions and discriminatory practices and attitudes that seem to undervalue women‟s work. This will require greater awareness of women‟s contribution to agriculture, and the recognition of the role played by women in food security and poverty alleviation, coupled with a strong commitment from the government to empower rural women in agriculture.
- Full Text:
- Date Issued: 2011
United Nations mediation in Africa: a case study of the Bakassi conflict intervention, 2002-2006
- Authors: Kenmoe Nougue, Plamielle
- Date: 2011
- Subjects: United Nations -- Africa , Intervention (International law) -- Case studies , United Nations -- Peacekeeping forces -- Africa -- History , Conflict management -- Africa -- Case studies , Bakasi Peninsula (Cameroon) -- Politics and government -- Case studies
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8186 , http://hdl.handle.net/10948/1431 , United Nations -- Africa , Intervention (International law) -- Case studies , United Nations -- Peacekeeping forces -- Africa -- History , Conflict management -- Africa -- Case studies , Bakasi Peninsula (Cameroon) -- Politics and government -- Case studies
- Description: Just as conflict is part of everyday life, mediation can and is practiced everyday and everywhere. It is a way of reaching decisions in a cooperative, non-hierarchical way, allowing for clear and open communication processes. Conflicts can be resolved in a formal manner through courts, arbitration, ombudspeople, diplomacy and mediation, or an informal manner through friends, colleagues, religious and community leaders, and dialogue. The way in which people resolve their disputes has an impact on how societies and institutions are governed. The war in Bakassi has taken its toll on the people of that area for several years now and has witnessed people from Bakassi facing some of the worst effects of armed conflict known to man. This study investigated the use of international mediation in the management of intractable conflict with a specific case study on the Bakassi peninsula conflict between Cameroon and Nigeria. It focused on the mediation process as a conflict management technique in relation to the international relations theories which has been used as a basis for conflict resolution practices. The researcher conducted a document review, content analysis on selected documents and this was supported by strategic interviews. The findings as well as the researcher‘s recommendations are discussed in the study in order to assist the future work of conflict management specialists and other stakeholders who have devoted their efforts to the recovery of areas emerging from conflict.
- Full Text:
- Date Issued: 2011
- Authors: Kenmoe Nougue, Plamielle
- Date: 2011
- Subjects: United Nations -- Africa , Intervention (International law) -- Case studies , United Nations -- Peacekeeping forces -- Africa -- History , Conflict management -- Africa -- Case studies , Bakasi Peninsula (Cameroon) -- Politics and government -- Case studies
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8186 , http://hdl.handle.net/10948/1431 , United Nations -- Africa , Intervention (International law) -- Case studies , United Nations -- Peacekeeping forces -- Africa -- History , Conflict management -- Africa -- Case studies , Bakasi Peninsula (Cameroon) -- Politics and government -- Case studies
- Description: Just as conflict is part of everyday life, mediation can and is practiced everyday and everywhere. It is a way of reaching decisions in a cooperative, non-hierarchical way, allowing for clear and open communication processes. Conflicts can be resolved in a formal manner through courts, arbitration, ombudspeople, diplomacy and mediation, or an informal manner through friends, colleagues, religious and community leaders, and dialogue. The way in which people resolve their disputes has an impact on how societies and institutions are governed. The war in Bakassi has taken its toll on the people of that area for several years now and has witnessed people from Bakassi facing some of the worst effects of armed conflict known to man. This study investigated the use of international mediation in the management of intractable conflict with a specific case study on the Bakassi peninsula conflict between Cameroon and Nigeria. It focused on the mediation process as a conflict management technique in relation to the international relations theories which has been used as a basis for conflict resolution practices. The researcher conducted a document review, content analysis on selected documents and this was supported by strategic interviews. The findings as well as the researcher‘s recommendations are discussed in the study in order to assist the future work of conflict management specialists and other stakeholders who have devoted their efforts to the recovery of areas emerging from conflict.
- Full Text:
- Date Issued: 2011
An exploration of a London Church Congregation's perceptions of homosexuality
- Authors: Beattie, Cora Rebecca
- Date: 2011
- Subjects: Conflict management -- Religious aspects -- Christianity , Interpersonal conflict -- Religious aspects -- Christianity , Church controversies , Homosexuality -- Religious aspects -- Christianity , Homosexuality in the Bible
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8171 , http://hdl.handle.net/10948/1640 , Conflict management -- Religious aspects -- Christianity , Interpersonal conflict -- Religious aspects -- Christianity , Church controversies , Homosexuality -- Religious aspects -- Christianity , Homosexuality in the Bible
- Description: The following treatise focuses on the ongoing conflict within the church regarding the issue of homosexuality. It is an important issue that has divided both churches and denominations and it continues to cause hurt in both the lives of Christians and non-Christians alike, both straight and gay. The popular position seems to be that the church, and Christians in general, are homophobic and believe that Christianity and homosexuality are not compatible. This research is a case study and focuses on a church in London. The research was carried out to discover whether this position, often portrayed by the media, was true of this church. It also sought to discover whether theories of conflict management and in particular John Burton’s theory of basic human needs could offer insight and alternative approaches in future discussions. The findings of this research offer hope in the situation in that they show this particular church is not homophobic, nor do the majority believe homosexuality and Christianity to be incompatible.
- Full Text:
- Date Issued: 2011
- Authors: Beattie, Cora Rebecca
- Date: 2011
- Subjects: Conflict management -- Religious aspects -- Christianity , Interpersonal conflict -- Religious aspects -- Christianity , Church controversies , Homosexuality -- Religious aspects -- Christianity , Homosexuality in the Bible
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8171 , http://hdl.handle.net/10948/1640 , Conflict management -- Religious aspects -- Christianity , Interpersonal conflict -- Religious aspects -- Christianity , Church controversies , Homosexuality -- Religious aspects -- Christianity , Homosexuality in the Bible
- Description: The following treatise focuses on the ongoing conflict within the church regarding the issue of homosexuality. It is an important issue that has divided both churches and denominations and it continues to cause hurt in both the lives of Christians and non-Christians alike, both straight and gay. The popular position seems to be that the church, and Christians in general, are homophobic and believe that Christianity and homosexuality are not compatible. This research is a case study and focuses on a church in London. The research was carried out to discover whether this position, often portrayed by the media, was true of this church. It also sought to discover whether theories of conflict management and in particular John Burton’s theory of basic human needs could offer insight and alternative approaches in future discussions. The findings of this research offer hope in the situation in that they show this particular church is not homophobic, nor do the majority believe homosexuality and Christianity to be incompatible.
- Full Text:
- Date Issued: 2011
An evaluation of the effectiveness of Walter Sisulu University's teaching practice as a context for student teachers' competence development
- Authors: Ntsaluba, Doris Nomonde
- Date: 2011
- Subjects: Teaching practice -- Student teacher
- Language: English
- Type: Thesis , Doctoral , D Ed
- Identifier: vital:18455 , http://hdl.handle.net/11260/d1007761
- Description: This study was aimed at evaluating the effectiveness of teaching practice as a context for the development of student teachers’ competences at Walter Sisulu University. The study was necessitated by the lack of information on whether teaching practice really provides an effective context or not. A literature study focusing on planning of teaching practice, preparation of student teachers for teaching practice, placement of student teachers for teaching practice, mentoring during teaching practice as well as supervision and assessment of teaching practice was conducted. The activity and situated learning theories provided a theoretical framework for studying teaching practice. The mixed-methods approach consisting of quantitative and qualitative approaches was used and data was collected through questionnaires and focus group discussions. The participants in the study were: thirty (30) student teachers in their third year of study; ten (10) host teachers who were hosting student teachers at the time of data collection for this study and ten (10) university supervisors responsible for teaching practice supervision. Data from closed-ended questionnaire items were analysed statistically. Frequencies and percentages were derived. Content analysis was used to analyse qualitative data. The results of the study revealed that there was a serious lack of communication between the university and the schools used for teaching practice and as a result student teachers were subjected to a wide range of treatment when they arrived at the schools. The findings also showed that student teachers were inadequately prepared for teaching practice. Student teachers were faced with serious challenges with regard to placement and there was no common programme of mentoring. The schools, as a result, did not provide a sufficiently-appropriate environment for teaching practice to become an effective context for student teachers‘ competence development. The recommendations made include suggestions for the improvement of the general organisation of teaching practice with the university and the schools working as partners in all the activities of teaching practice. The introduction of a formal programme for the preparation of student teachers for teaching practice is suggested and a teaching practice model is also proposed.
- Full Text:
- Date Issued: 2011
- Authors: Ntsaluba, Doris Nomonde
- Date: 2011
- Subjects: Teaching practice -- Student teacher
- Language: English
- Type: Thesis , Doctoral , D Ed
- Identifier: vital:18455 , http://hdl.handle.net/11260/d1007761
- Description: This study was aimed at evaluating the effectiveness of teaching practice as a context for the development of student teachers’ competences at Walter Sisulu University. The study was necessitated by the lack of information on whether teaching practice really provides an effective context or not. A literature study focusing on planning of teaching practice, preparation of student teachers for teaching practice, placement of student teachers for teaching practice, mentoring during teaching practice as well as supervision and assessment of teaching practice was conducted. The activity and situated learning theories provided a theoretical framework for studying teaching practice. The mixed-methods approach consisting of quantitative and qualitative approaches was used and data was collected through questionnaires and focus group discussions. The participants in the study were: thirty (30) student teachers in their third year of study; ten (10) host teachers who were hosting student teachers at the time of data collection for this study and ten (10) university supervisors responsible for teaching practice supervision. Data from closed-ended questionnaire items were analysed statistically. Frequencies and percentages were derived. Content analysis was used to analyse qualitative data. The results of the study revealed that there was a serious lack of communication between the university and the schools used for teaching practice and as a result student teachers were subjected to a wide range of treatment when they arrived at the schools. The findings also showed that student teachers were inadequately prepared for teaching practice. Student teachers were faced with serious challenges with regard to placement and there was no common programme of mentoring. The schools, as a result, did not provide a sufficiently-appropriate environment for teaching practice to become an effective context for student teachers‘ competence development. The recommendations made include suggestions for the improvement of the general organisation of teaching practice with the university and the schools working as partners in all the activities of teaching practice. The introduction of a formal programme for the preparation of student teachers for teaching practice is suggested and a teaching practice model is also proposed.
- Full Text:
- Date Issued: 2011
Constructability effects of green buildings
- Authors: Hurbissoon, Roneesh Mehta
- Date: 2011
- Subjects: Sustainable construction , Architecture and energy conservation , Construction industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9722 , http://hdl.handle.net/10948/1379 , Sustainable construction , Architecture and energy conservation , Construction industry
- Description: The Earth's health is deteriorating and will deteriorate even more rapidly unless people adopt eco-friendly policies. Green building has long been a concept but it has not yet been universally applied in practice. The concept of sustainability emerged in the 1970s and can be associated with the energy crisis and environmental pollution concerns. This research is aimed at investigating whether building “green” is more demanding than non-green buildings in terms of cost and the use of green materials against traditional materials; whether professionals in the construction industry are knowledgeable in terms of green buildings; and lastly, to determine whether green buildings are contributing significantly to the environment. The literature reviewed and results of quantitative research amongst professionals from the Island of Mauritius formed the basis of the study. The study revealed that green building is expensive relative to traditional buildings considering. However, the concepts employed (for example: lower energy use, less waste disposal, lower water usage, and sustainable design) provide green buildings with long term savings. Furthermore, the scarcity of natural materials makes it expensive. The study also showed that contractors and professionals have a preference for traditional materials over green materials thus making them more familiar with traditional materials. Contractors and professionals are believed to understand green materials only on a limited basis. This may be attributed to the specific environmental issues involved; however, the research revealed that the professionals are familiar with the basic concepts of green buildings. Lastly, the research showed that green building is still at its infancy but the benefits of green buildings are understood; resulting in green buildings having a good growth potential. The study should be valuable to construction industry professional and clients.
- Full Text:
- Date Issued: 2011
- Authors: Hurbissoon, Roneesh Mehta
- Date: 2011
- Subjects: Sustainable construction , Architecture and energy conservation , Construction industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9722 , http://hdl.handle.net/10948/1379 , Sustainable construction , Architecture and energy conservation , Construction industry
- Description: The Earth's health is deteriorating and will deteriorate even more rapidly unless people adopt eco-friendly policies. Green building has long been a concept but it has not yet been universally applied in practice. The concept of sustainability emerged in the 1970s and can be associated with the energy crisis and environmental pollution concerns. This research is aimed at investigating whether building “green” is more demanding than non-green buildings in terms of cost and the use of green materials against traditional materials; whether professionals in the construction industry are knowledgeable in terms of green buildings; and lastly, to determine whether green buildings are contributing significantly to the environment. The literature reviewed and results of quantitative research amongst professionals from the Island of Mauritius formed the basis of the study. The study revealed that green building is expensive relative to traditional buildings considering. However, the concepts employed (for example: lower energy use, less waste disposal, lower water usage, and sustainable design) provide green buildings with long term savings. Furthermore, the scarcity of natural materials makes it expensive. The study also showed that contractors and professionals have a preference for traditional materials over green materials thus making them more familiar with traditional materials. Contractors and professionals are believed to understand green materials only on a limited basis. This may be attributed to the specific environmental issues involved; however, the research revealed that the professionals are familiar with the basic concepts of green buildings. Lastly, the research showed that green building is still at its infancy but the benefits of green buildings are understood; resulting in green buildings having a good growth potential. The study should be valuable to construction industry professional and clients.
- Full Text:
- Date Issued: 2011
Journal of learner writing / Phemba Mfundi
- Nelson Mandela Institute for Education and Rural Development
- Authors: Nelson Mandela Institute for Education and Rural Development
- Date: 2011
- Subjects: Inkedama -- Ukufa , Protests -- Our roots , Protest -- Praise poems , Oomana -- Women , Umtshato -- Wedding -- Humanities , Ugawulayo -- HIV & AIDS , Indalo -- Nature , Ulawulo ngomelo -- Inkululeko--Democracy and freedom , Amaqhawe namaqhawekazi -- Heroes -- Heroines , Iincwadi namabali -- letters and stories , Phemba Mfundi Journal 2011
- Language: English , Xhosa
- Type: text
- Identifier: vital:12216 , http://hdl.handle.net/10353/d1013528 , Inkedama -- Ukufa , Protests -- Our roots , Protest -- Praise poems , Oomana -- Women , Umtshato -- Wedding -- Humanities , Ugawulayo -- HIV & AIDS , Indalo -- Nature , Ulawulo ngomelo -- Inkululeko--Democracy and freedom , Amaqhawe namaqhawekazi -- Heroes -- Heroines , Iincwadi namabali -- letters and stories
- Full Text:
- Date Issued: 2011
- Authors: Nelson Mandela Institute for Education and Rural Development
- Date: 2011
- Subjects: Inkedama -- Ukufa , Protests -- Our roots , Protest -- Praise poems , Oomana -- Women , Umtshato -- Wedding -- Humanities , Ugawulayo -- HIV & AIDS , Indalo -- Nature , Ulawulo ngomelo -- Inkululeko--Democracy and freedom , Amaqhawe namaqhawekazi -- Heroes -- Heroines , Iincwadi namabali -- letters and stories , Phemba Mfundi Journal 2011
- Language: English , Xhosa
- Type: text
- Identifier: vital:12216 , http://hdl.handle.net/10353/d1013528 , Inkedama -- Ukufa , Protests -- Our roots , Protest -- Praise poems , Oomana -- Women , Umtshato -- Wedding -- Humanities , Ugawulayo -- HIV & AIDS , Indalo -- Nature , Ulawulo ngomelo -- Inkululeko--Democracy and freedom , Amaqhawe namaqhawekazi -- Heroes -- Heroines , Iincwadi namabali -- letters and stories
- Full Text:
- Date Issued: 2011
Time series models for paired comparisons
- Authors: Sjolander, Morne Rowan
- Date: 2011
- Subjects: Paired comparisons (Statistics)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10577 , http://hdl.handle.net/10948/d1012858
- Description: The method of paired comparisons is seen as a technique used to rank a set of objects with respect to an abstract or immeasurable property. To do this, the objects get to be compared two at a time. The results are input into a model, resulting in numbers known as weights being assigned to the objects. The weights are then used to rank the objects. The method of paired comparisons was first used for psychometric investigations. Various other applications of the method are also present, for example economic applications, and applications in sports statistics. This study involves taking paired comparison models and making them time-dependent. Not much research has been done in this area. Three new time series models for paired comparisons are created. Simulations are done to support the evidence obtained, and theoretical as well as practical examples are given to illustrate the results and to verify the efficiency of the new models. A literature study is given on the method of paired comparisons, as well as on the areas in which we apply our models. Our first two time series models for paired comparisons are the Linear-Trend Bradley- Terry Model and the Sinusoidal Bradley-Terry Model. We use the maximum likelihood approach to solve these models. We test our models using exact and randomly simulated data for various time periods and various numbers of objects. We adapt the Linear-Trend Bradley-Terry Model and received our third time series model for paired comparisons, the Log Linear-Trend Bradley-Terry Model. The daily maximum and minimum temperatures were received for Port Elizabeth, Uitenhage and Coega for 2005 until 2009. To evaluate the performance of the Linear-Trend Bradley-Terry Model and the Sinusoidal Bradley-Terry Model on estimating missing temperature data, we artificially remove observations of temperature from Coega’s temperature dataset for 2006 until 2008, and use various forms of these models to estimate the missing data points. The exchange rates for 2005 until 2008 between the following currencies: the Rand, Dollar, Euro, Pound and Yen, were obtained and various forms of our Log Linear-Trend Bradley-Terry Model are used to forecast the exchange rate for one day ahead for each month in 2006 until 2008. One of the features of this study is that we apply our time series models for paired comparisons to areas which comprise non-standard paired comparisons; and we want to encourage the use of the method of paired comparisons in a broader sense than what it is traditionally used for. The results of this study can be used in various other areas, like for example, in sports statistics, to rank the strength of sports players and predict their future scores; in Physics, to calculate weather risks of electricity generation, particularly risks related to nuclear power plants, and so forth, as well as in many other areas. It is hoped that this research will open the door to much more research in combining time series analysis with the method of paired comparisons.
- Full Text:
- Date Issued: 2011
- Authors: Sjolander, Morne Rowan
- Date: 2011
- Subjects: Paired comparisons (Statistics)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10577 , http://hdl.handle.net/10948/d1012858
- Description: The method of paired comparisons is seen as a technique used to rank a set of objects with respect to an abstract or immeasurable property. To do this, the objects get to be compared two at a time. The results are input into a model, resulting in numbers known as weights being assigned to the objects. The weights are then used to rank the objects. The method of paired comparisons was first used for psychometric investigations. Various other applications of the method are also present, for example economic applications, and applications in sports statistics. This study involves taking paired comparison models and making them time-dependent. Not much research has been done in this area. Three new time series models for paired comparisons are created. Simulations are done to support the evidence obtained, and theoretical as well as practical examples are given to illustrate the results and to verify the efficiency of the new models. A literature study is given on the method of paired comparisons, as well as on the areas in which we apply our models. Our first two time series models for paired comparisons are the Linear-Trend Bradley- Terry Model and the Sinusoidal Bradley-Terry Model. We use the maximum likelihood approach to solve these models. We test our models using exact and randomly simulated data for various time periods and various numbers of objects. We adapt the Linear-Trend Bradley-Terry Model and received our third time series model for paired comparisons, the Log Linear-Trend Bradley-Terry Model. The daily maximum and minimum temperatures were received for Port Elizabeth, Uitenhage and Coega for 2005 until 2009. To evaluate the performance of the Linear-Trend Bradley-Terry Model and the Sinusoidal Bradley-Terry Model on estimating missing temperature data, we artificially remove observations of temperature from Coega’s temperature dataset for 2006 until 2008, and use various forms of these models to estimate the missing data points. The exchange rates for 2005 until 2008 between the following currencies: the Rand, Dollar, Euro, Pound and Yen, were obtained and various forms of our Log Linear-Trend Bradley-Terry Model are used to forecast the exchange rate for one day ahead for each month in 2006 until 2008. One of the features of this study is that we apply our time series models for paired comparisons to areas which comprise non-standard paired comparisons; and we want to encourage the use of the method of paired comparisons in a broader sense than what it is traditionally used for. The results of this study can be used in various other areas, like for example, in sports statistics, to rank the strength of sports players and predict their future scores; in Physics, to calculate weather risks of electricity generation, particularly risks related to nuclear power plants, and so forth, as well as in many other areas. It is hoped that this research will open the door to much more research in combining time series analysis with the method of paired comparisons.
- Full Text:
- Date Issued: 2011
Formation, surface characterization, and electrocatalytic application of self-assembled monolayer films of tetra-substituted manganese, iron, and cobalt benzylthio phthalocyanine complexes
- Akinbulu, Isaac Adebayo, Ozoemena, Kenneth Iyke, Nyokong, Tebello
- Authors: Akinbulu, Isaac Adebayo , Ozoemena, Kenneth Iyke , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247163 , vital:51552 , xlink:href="https://doi.org/10.1007/s10008-010-1243-1"
- Description: Molecular thin films of manganese (SAM-2), iron (SAM-3), and cobalt (SAM-4) phthalocyanine complexes, non-peripherally tetra-substituted with benzylmercapto, were formed on polycrystalline gold disc electrode by self-assembly technique. Surface characteristics of the films were interrogated by cyclic voltammetry. Significant passivation of voltammetry processes associated with bare gold surface (gold oxidation and underpotential deposition of copper) confirmed formation of the films. Electrocatalytic property of the films was evidenced from better voltammetry responses (less positive oxidation potential and better current signal) of the insecticide, carbofuran, on these films, relative to that on bare gold electrode. In terms of less positive oxidation potential, the FePc derivative (3) gave the best response, while the best current signal was observed on SAM-2-modified gold electrode. The average heterogeneous rate constant, k, for the oxidation of carbofuran was 3.6 × 10−2 cm s−1 on the SAM film with the best current signal (SAM-2).
- Full Text:
- Date Issued: 2011
- Authors: Akinbulu, Isaac Adebayo , Ozoemena, Kenneth Iyke , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247163 , vital:51552 , xlink:href="https://doi.org/10.1007/s10008-010-1243-1"
- Description: Molecular thin films of manganese (SAM-2), iron (SAM-3), and cobalt (SAM-4) phthalocyanine complexes, non-peripherally tetra-substituted with benzylmercapto, were formed on polycrystalline gold disc electrode by self-assembly technique. Surface characteristics of the films were interrogated by cyclic voltammetry. Significant passivation of voltammetry processes associated with bare gold surface (gold oxidation and underpotential deposition of copper) confirmed formation of the films. Electrocatalytic property of the films was evidenced from better voltammetry responses (less positive oxidation potential and better current signal) of the insecticide, carbofuran, on these films, relative to that on bare gold electrode. In terms of less positive oxidation potential, the FePc derivative (3) gave the best response, while the best current signal was observed on SAM-2-modified gold electrode. The average heterogeneous rate constant, k, for the oxidation of carbofuran was 3.6 × 10−2 cm s−1 on the SAM film with the best current signal (SAM-2).
- Full Text:
- Date Issued: 2011
The impact of HIV/AIDS on the delivery of maternal health care services of selected primary health care clinics of Peddie in the Eastern Cape Province
- Mangi, Nozuko Glenrose https://orcid.org/0000-0001-9158-8820
- Authors: Mangi, Nozuko Glenrose https://orcid.org/0000-0001-9158-8820
- Date: 2011
- Subjects: Maternal health services , Primary health care , HIV infections -- Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24576 , vital:63209
- Description: The aim of this descriptive study was to explore the impact of HIV/AIDS on the maternal health programme at selected Primary Health Care (PHC) clinics in the Peddie sub-district, in the Eastern Cape, South Africa. This study showed that the HIV/AIDS epidemic has had major influences on the rendering of maternal health services in this sub-district. An understanding of the impact of HIV/AIDS on the delivery of the maternal health programme in the Peddie Primary Health Clinics will potentially help the District Health Service office, as well as the clinic managers and professional nurses to formulate strategies to strengthen the maternal health programme. This data will also be helpful when developing plans to cope with the heavy work-load of the clinics offering maternal health services, and to address the attitudes and concerns of the professional nurses working in the PHC clinics in this area. Thirty professional nurses working at 10 clinics responded to the questionnaires which elicited questions pertaining to the impact of HIV/AIDS on the rendering of their services. As part of the data gathering procedures, standardised notice boards at the PHC clinics were used to document the services rendered. The numbers of ANC clients attended to each of the clinics per week were collected in routine attendance tick registers used in the clinics for recording and monitoring statistics in the maternal health programme. The data was analysed to examine the possible impact of HIV/AIDS on maternal health services rendered by registered nurses/midwives working in the PHC clinics. The registered nurses who responded to the questionnaires (Annexure H) made several suggestions. These included the following: (i) encouraged more training (11 nurses), (ii) addition of more staff members, (iii) to have specialized staff for management of maternal HIV. Because of the study limitations such as the sample size of 10 clinics with a total of 30 nurses who were studied, the study may not be generalised to the whole of the Eastern Cape Province. The study however did provide baseline information on the impact of HIV/AIDS on the maternal health programme. The study findings were that HIV/AIDS has had an impact on the delivery of the maternal health programme due to the extra services brought about by the response to the HIV/AIDS pandemic. This study will contribute to a better understanding of the impact of HIV/AIDS on the maternal health programme at the PHC level in Peddie. The research provided insight into issues that are crucial to the delivery of maternal health programmes in rural areas. , Thesis (MCur) -- Faculty of Science and Agriculture, 2011
- Full Text:
- Date Issued: 2011
- Authors: Mangi, Nozuko Glenrose https://orcid.org/0000-0001-9158-8820
- Date: 2011
- Subjects: Maternal health services , Primary health care , HIV infections -- Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24576 , vital:63209
- Description: The aim of this descriptive study was to explore the impact of HIV/AIDS on the maternal health programme at selected Primary Health Care (PHC) clinics in the Peddie sub-district, in the Eastern Cape, South Africa. This study showed that the HIV/AIDS epidemic has had major influences on the rendering of maternal health services in this sub-district. An understanding of the impact of HIV/AIDS on the delivery of the maternal health programme in the Peddie Primary Health Clinics will potentially help the District Health Service office, as well as the clinic managers and professional nurses to formulate strategies to strengthen the maternal health programme. This data will also be helpful when developing plans to cope with the heavy work-load of the clinics offering maternal health services, and to address the attitudes and concerns of the professional nurses working in the PHC clinics in this area. Thirty professional nurses working at 10 clinics responded to the questionnaires which elicited questions pertaining to the impact of HIV/AIDS on the rendering of their services. As part of the data gathering procedures, standardised notice boards at the PHC clinics were used to document the services rendered. The numbers of ANC clients attended to each of the clinics per week were collected in routine attendance tick registers used in the clinics for recording and monitoring statistics in the maternal health programme. The data was analysed to examine the possible impact of HIV/AIDS on maternal health services rendered by registered nurses/midwives working in the PHC clinics. The registered nurses who responded to the questionnaires (Annexure H) made several suggestions. These included the following: (i) encouraged more training (11 nurses), (ii) addition of more staff members, (iii) to have specialized staff for management of maternal HIV. Because of the study limitations such as the sample size of 10 clinics with a total of 30 nurses who were studied, the study may not be generalised to the whole of the Eastern Cape Province. The study however did provide baseline information on the impact of HIV/AIDS on the maternal health programme. The study findings were that HIV/AIDS has had an impact on the delivery of the maternal health programme due to the extra services brought about by the response to the HIV/AIDS pandemic. This study will contribute to a better understanding of the impact of HIV/AIDS on the maternal health programme at the PHC level in Peddie. The research provided insight into issues that are crucial to the delivery of maternal health programmes in rural areas. , Thesis (MCur) -- Faculty of Science and Agriculture, 2011
- Full Text:
- Date Issued: 2011
Has deregulation of non-timber forest product controls and marketing in Orissa state (India) affected local patterns of use and marketing
- Mahapatra, A K, Shackleton, Charlie M
- Authors: Mahapatra, A K , Shackleton, Charlie M
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6643 , http://hdl.handle.net/10962/d1006872
- Description: State control of marketing agricultural or forestry products may lead to a trade monopoly and restricted competition, resulting in inequitable returns to producers. Consequently, market deregulation for agriculture and other natural products has been advocated to improve market efficiencies, participation and returns for the producers and local traders. The study examines the impact of deregulation of state marketing controls on collection, sale and returns to extractors and traders from non-timber forest products. It assessed whether deregulation policy resulted in greater benefits to primary extractors and a win–win situation for both producers and traders? Mixed effects were found, with no significant changes in terms of trade, demand, or quantum of consumption; but there was an overall increase in the procurement price for several products following deregulation. The collection and farm gate price of tree based oilseeds and honey increased due to lower transaction costs, and ease of trading with a continued demand for these products. The impact on less valuable products was insignificant. Abolition of monopolistic trading increased competition and had a pull effect on the local market prices of several NTFPs. Although traders paid a higher price to procure products, overall they also benefited being able to sell the purchased products to merchants and manufacturers at a better margin than previously.
- Full Text:
- Date Issued: 2011
- Authors: Mahapatra, A K , Shackleton, Charlie M
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6643 , http://hdl.handle.net/10962/d1006872
- Description: State control of marketing agricultural or forestry products may lead to a trade monopoly and restricted competition, resulting in inequitable returns to producers. Consequently, market deregulation for agriculture and other natural products has been advocated to improve market efficiencies, participation and returns for the producers and local traders. The study examines the impact of deregulation of state marketing controls on collection, sale and returns to extractors and traders from non-timber forest products. It assessed whether deregulation policy resulted in greater benefits to primary extractors and a win–win situation for both producers and traders? Mixed effects were found, with no significant changes in terms of trade, demand, or quantum of consumption; but there was an overall increase in the procurement price for several products following deregulation. The collection and farm gate price of tree based oilseeds and honey increased due to lower transaction costs, and ease of trading with a continued demand for these products. The impact on less valuable products was insignificant. Abolition of monopolistic trading increased competition and had a pull effect on the local market prices of several NTFPs. Although traders paid a higher price to procure products, overall they also benefited being able to sell the purchased products to merchants and manufacturers at a better margin than previously.
- Full Text:
- Date Issued: 2011
The role of the state and the environment in indigenous livestock farming: a case study of Debe Marela, Middledrift area, Eastern Cape
- Authors: Hashe, Luvuyo E
- Date: 2011
- Subjects: Farmers -- South Africa -- Eastern Cape , Livestock -- South Africa -- Eastern Cape , Traditional farming -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Agriculture and politics -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPhil (Environmental Studies)
- Identifier: vital:11877 , http://hdl.handle.net/10353/372 , Farmers -- South Africa -- Eastern Cape , Livestock -- South Africa -- Eastern Cape , Traditional farming -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Agriculture and politics -- South Africa -- Eastern Cape
- Description: The study focused on the role of the State and the environment in indigenous livestock farming in Debe Marela in Middledrift. Although communal farmers in the area used ethnoveterinary medicines to treat and prevent animal diseases, they also widely used conventional medicines, as these often provided a remedy to animal diseases. The livestock farmers believed in indigenous knowledge which empowered them in using herbs to a certain extent, but the latter was preferred. The Department of Agriculture has featured as a support institution and although livestock farmers in the area have participated in and benefitted from state programmes, they believe that they needed more interventions such as visits from veterinary surgeons, Extension Officers and Animal Health Technicians. The study therefore attempts to address the gaps highlighted in the work of other researchers.
- Full Text:
- Date Issued: 2011
- Authors: Hashe, Luvuyo E
- Date: 2011
- Subjects: Farmers -- South Africa -- Eastern Cape , Livestock -- South Africa -- Eastern Cape , Traditional farming -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Agriculture and politics -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPhil (Environmental Studies)
- Identifier: vital:11877 , http://hdl.handle.net/10353/372 , Farmers -- South Africa -- Eastern Cape , Livestock -- South Africa -- Eastern Cape , Traditional farming -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Agriculture and politics -- South Africa -- Eastern Cape
- Description: The study focused on the role of the State and the environment in indigenous livestock farming in Debe Marela in Middledrift. Although communal farmers in the area used ethnoveterinary medicines to treat and prevent animal diseases, they also widely used conventional medicines, as these often provided a remedy to animal diseases. The livestock farmers believed in indigenous knowledge which empowered them in using herbs to a certain extent, but the latter was preferred. The Department of Agriculture has featured as a support institution and although livestock farmers in the area have participated in and benefitted from state programmes, they believe that they needed more interventions such as visits from veterinary surgeons, Extension Officers and Animal Health Technicians. The study therefore attempts to address the gaps highlighted in the work of other researchers.
- Full Text:
- Date Issued: 2011
Electrooxidation of Chlorophenols Catalyzed by Nickel Octadecylphthalocyanine Adsorbed on Single‐Walled Carbon Nanotubes
- Khene, Samson, Nyokong, Tebello
- Authors: Khene, Samson , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247198 , vital:51555 , xlink:href="https://doi.org/10.1002/elan.201100155"
- Description: We described the synthesis of nickel octadecylphthalocyanine (NiPc(C10H21)8), followed by its adsorption on single-walled carbon nanotubes (SWCNT) to form SWCNT-NiPc(C10H21)8 conjugates. SWCNT-NiPc(C10H21)8 was used to modify a glassy carbon electrode (GCE) and for the electrooxidation of 4-chlorophenol and 2,4-dichlorophenol. The SWCNT and NiPc(C10H21)8 have a synergistic effect on each other in terms of improving electrocatalysis for the detection of chlorophenols. The stability of the electrode improved in the presence of NiPc(C10H21)8 or NiPc compared to the bare GCE. The presence of SWCNT improves the electrocatalytic behaviour of NiPc(C10H21)8 but not of unsubstituted NiPc. All modified electrodes showed improved stability towards the detection of 2,4-dichlorophenol. The best stability for 4-CP detection was observed in the presence of SWCNT for NiPc(C10H21)8.
- Full Text:
- Date Issued: 2011
- Authors: Khene, Samson , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247198 , vital:51555 , xlink:href="https://doi.org/10.1002/elan.201100155"
- Description: We described the synthesis of nickel octadecylphthalocyanine (NiPc(C10H21)8), followed by its adsorption on single-walled carbon nanotubes (SWCNT) to form SWCNT-NiPc(C10H21)8 conjugates. SWCNT-NiPc(C10H21)8 was used to modify a glassy carbon electrode (GCE) and for the electrooxidation of 4-chlorophenol and 2,4-dichlorophenol. The SWCNT and NiPc(C10H21)8 have a synergistic effect on each other in terms of improving electrocatalysis for the detection of chlorophenols. The stability of the electrode improved in the presence of NiPc(C10H21)8 or NiPc compared to the bare GCE. The presence of SWCNT improves the electrocatalytic behaviour of NiPc(C10H21)8 but not of unsubstituted NiPc. All modified electrodes showed improved stability towards the detection of 2,4-dichlorophenol. The best stability for 4-CP detection was observed in the presence of SWCNT for NiPc(C10H21)8.
- Full Text:
- Date Issued: 2011
The extent of the use of ICT in schools in the Nelson Mandela Bay area
- Authors: Sonkwala, Mzikayise Richard
- Date: 2011
- Subjects: Educational technology -- South Africa -- Port Elizabeth , Computer-assisted instruction -- South Africa -- Port Elizabeth , Information technology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9102 , http://hdl.handle.net/10948/d1012284 , Educational technology -- South Africa -- Port Elizabeth , Computer-assisted instruction -- South Africa -- Port Elizabeth , Information technology
- Description: It is the 21st Century and the world is a global village. The development of technology like Information and Communication Technology (ICT) has thus become the dominant means of communication. Education has not been left out of this wave of change. In many countries Information and Communication Technology (ICT) has a clear impact in the development of educational curriculum. This cannot be said about South Africa where huge disparities in terms of ICT related resources still exist. There is a range of uses of ICT in South African schools and it varies according to the economic and social conditions where that school is located. For example, the former Model C schools are well-resourced in terms of computers and access to internet whilst township schools lack these resources. In township schools very few students are exposed to computers due to the limited number of computers and lack of properly qualified educators in the field of ICT. In the Nelson Mandela Bay area township schools only offer CAT (Computer Applications Technology) as an ICT related subject whilst the former Model C schools offer CAT and IT (Information Technology).This treatise attempts to show the digital divide that still exists between a former Model C school and a township school, and the impact it has in quality of education in these schools.
- Full Text:
- Date Issued: 2011
- Authors: Sonkwala, Mzikayise Richard
- Date: 2011
- Subjects: Educational technology -- South Africa -- Port Elizabeth , Computer-assisted instruction -- South Africa -- Port Elizabeth , Information technology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9102 , http://hdl.handle.net/10948/d1012284 , Educational technology -- South Africa -- Port Elizabeth , Computer-assisted instruction -- South Africa -- Port Elizabeth , Information technology
- Description: It is the 21st Century and the world is a global village. The development of technology like Information and Communication Technology (ICT) has thus become the dominant means of communication. Education has not been left out of this wave of change. In many countries Information and Communication Technology (ICT) has a clear impact in the development of educational curriculum. This cannot be said about South Africa where huge disparities in terms of ICT related resources still exist. There is a range of uses of ICT in South African schools and it varies according to the economic and social conditions where that school is located. For example, the former Model C schools are well-resourced in terms of computers and access to internet whilst township schools lack these resources. In township schools very few students are exposed to computers due to the limited number of computers and lack of properly qualified educators in the field of ICT. In the Nelson Mandela Bay area township schools only offer CAT (Computer Applications Technology) as an ICT related subject whilst the former Model C schools offer CAT and IT (Information Technology).This treatise attempts to show the digital divide that still exists between a former Model C school and a township school, and the impact it has in quality of education in these schools.
- Full Text:
- Date Issued: 2011
The use of lean tools to increase productivity and improve efficiency in Port Elizabeth Enforcement Audit
- Authors: Bantom, Phumeza Patience
- Date: 2011
- Subjects: Lean manufacturing , Quality control -- Auditing , Waste minimization , Auditing, Internal
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8645 , http://hdl.handle.net/10948/d1008159 , Lean manufacturing , Quality control -- Auditing , Waste minimization , Auditing, Internal
- Description: Lean philosophy is based on the continuous quest to improve the organisation‟s processes by creating a culture and operating principles which eliminate all non value adding activities within organisation„s processes. Manufacturing firms consider the adoption of the Lean tools as basic requirements for achieving World Class operational excellence or Best Practice. For some time, lean has been used by the manufacturing organizations. Most organizations understand that lean will help them survive global competition and stay in business. The objective of this study is to investigate how lean manufacturing tools can be used to improve efficiency and enhance the embedding of a continuous improvement culture in the South African Revenue Service Enforcement Audit Port Elizabeth. The activities that took place in Enforcement Audit Port Elizabeth from September 2010 until 31 October 2011 were observed. During the study, an introductory presentation by the researcher was made to Regional Enforcement Management and staff in general, the presentation was to introduce the study highlighting different Lean tools. Thereafter the Port Elizabeth audit staff members were engaged formally, using surveys to assess their underlying mindset and behaviour as well as informally, using unstructured interviews to solicit more information on activities taking place and the reasoning behind certain actions. The results of the survey and observations are analysed and interpreted.
- Full Text:
- Date Issued: 2011
- Authors: Bantom, Phumeza Patience
- Date: 2011
- Subjects: Lean manufacturing , Quality control -- Auditing , Waste minimization , Auditing, Internal
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8645 , http://hdl.handle.net/10948/d1008159 , Lean manufacturing , Quality control -- Auditing , Waste minimization , Auditing, Internal
- Description: Lean philosophy is based on the continuous quest to improve the organisation‟s processes by creating a culture and operating principles which eliminate all non value adding activities within organisation„s processes. Manufacturing firms consider the adoption of the Lean tools as basic requirements for achieving World Class operational excellence or Best Practice. For some time, lean has been used by the manufacturing organizations. Most organizations understand that lean will help them survive global competition and stay in business. The objective of this study is to investigate how lean manufacturing tools can be used to improve efficiency and enhance the embedding of a continuous improvement culture in the South African Revenue Service Enforcement Audit Port Elizabeth. The activities that took place in Enforcement Audit Port Elizabeth from September 2010 until 31 October 2011 were observed. During the study, an introductory presentation by the researcher was made to Regional Enforcement Management and staff in general, the presentation was to introduce the study highlighting different Lean tools. Thereafter the Port Elizabeth audit staff members were engaged formally, using surveys to assess their underlying mindset and behaviour as well as informally, using unstructured interviews to solicit more information on activities taking place and the reasoning behind certain actions. The results of the survey and observations are analysed and interpreted.
- Full Text:
- Date Issued: 2011
Investigation into the extended capabilities of the new DPS-4D ionosonde
- Authors: Ssessanga, Nicholas
- Date: 2011
- Subjects: Ionosondes , Ionosphere , Ionosphere -- Observations -- South Africa -- Hermanus (Cape of Good Hope) , Ionosphere -- Research -- South Africa -- Hermanus (Cape of Good Hope)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5472 , http://hdl.handle.net/10962/d1005257 , Ionosondes , Ionosphere , Ionosphere -- Observations -- South Africa -- Hermanus (Cape of Good Hope) , Ionosphere -- Research -- South Africa -- Hermanus (Cape of Good Hope)
- Description: The DPS-4D is the latest version of digital ionosonde developed by the UMLCAR (University of Massachusetts in Lowell Center for Atmospheric Research) in 2008. This new ionosonde has advances in both the hardware and software which allows for the promised advanced capabilities. The aim of this thesis was to present results from an experiment undertaken using the Hermanus DPS-4D (34.4°S 19.2°E, South Africa), the first of this version to be installed globally, to answer a science question outside of the normally expected capabilities of an ionosonde. The science question posed focused on the ability of the DPS-4D to provide information on day-time Pc3 pulsations evident in the ionosphere. Day-time Pc3 ULF waves propagating down through the ionosphere cause oscillations in the Doppler shift of High Frequency (HF) radio transmissions that are correlated with the magnetic pulsations recorded on the ground. Evidence is presented which shows that no correlation exists between the ground magnetic pulsation data and DPS-4D ionospheric data. The conclusion was reached that although the DPS-4D is more advanced in its eld of technology than its predecessors it may not be used to observe Pc3 pulsations.
- Full Text:
- Date Issued: 2011
- Authors: Ssessanga, Nicholas
- Date: 2011
- Subjects: Ionosondes , Ionosphere , Ionosphere -- Observations -- South Africa -- Hermanus (Cape of Good Hope) , Ionosphere -- Research -- South Africa -- Hermanus (Cape of Good Hope)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5472 , http://hdl.handle.net/10962/d1005257 , Ionosondes , Ionosphere , Ionosphere -- Observations -- South Africa -- Hermanus (Cape of Good Hope) , Ionosphere -- Research -- South Africa -- Hermanus (Cape of Good Hope)
- Description: The DPS-4D is the latest version of digital ionosonde developed by the UMLCAR (University of Massachusetts in Lowell Center for Atmospheric Research) in 2008. This new ionosonde has advances in both the hardware and software which allows for the promised advanced capabilities. The aim of this thesis was to present results from an experiment undertaken using the Hermanus DPS-4D (34.4°S 19.2°E, South Africa), the first of this version to be installed globally, to answer a science question outside of the normally expected capabilities of an ionosonde. The science question posed focused on the ability of the DPS-4D to provide information on day-time Pc3 pulsations evident in the ionosphere. Day-time Pc3 ULF waves propagating down through the ionosphere cause oscillations in the Doppler shift of High Frequency (HF) radio transmissions that are correlated with the magnetic pulsations recorded on the ground. Evidence is presented which shows that no correlation exists between the ground magnetic pulsation data and DPS-4D ionospheric data. The conclusion was reached that although the DPS-4D is more advanced in its eld of technology than its predecessors it may not be used to observe Pc3 pulsations.
- Full Text:
- Date Issued: 2011
Assessing education's relevance to industry needs and the impact on graduate employability: a case study of UFH communication graduates
- Authors: Siwela, Ntandokazulu
- Date: 2011
- Subjects: Graduate students -- South Africa , Curriculum-based assessment -- South Africa , Educational evaluation , Employability -- South Africa
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11425 , http://hdl.handle.net/10353/571 , Graduate students -- South Africa , Curriculum-based assessment -- South Africa , Educational evaluation , Employability -- South Africa
- Description: The 21st century has seen nations becoming more competitive yet ironically more interdependent as their future becomes even more dependent on the knowledge, skills, and resourcefulness of its people, creating new opportunities and difficulties for education, (Power, 2000). The education-work-society interdependency has therefore become more important now than ever. It is also because of this triad-interdependency that tertiary education‟s relevance to industry needs has become a crucial issue in societal development. The ever changing needs of South Africa, the unemployment rate, introduction of new technologies and many other ripple effects of globalization have seen more and more pressure mounting on the South African education system as more and more people try to ensure that the education system answers the crucial challenges of the country today and tomorrow.The discussion below provides a detailed account of the context, in which this discourse on curriculum relevance takes place, highlighting some relevant cornerstones of the Reconstruction and Development Programme, (RDP, 1994). Furthermore, this chapter exposes the key research questions and significance of the study. The subsequent chapter 2 gives an account of what other scholars have said on issues of curriculum relevance, development and the South African Higher Education system. Chapter 3 explains the research methodology as a research process used to investigate the problem in question. In this research study the researcher uses both quantitative and qualitative design (online surveys of three groups, these are the graduates, prospective employers and the lecturers). The analysis is based on quantitative data and further substantiated through qualitative data analysis. The subsequent chapter tabulates and lays out the results according to the surveys. The final chapter discusses the findings and makes future recommendations.
- Full Text:
- Date Issued: 2011
- Authors: Siwela, Ntandokazulu
- Date: 2011
- Subjects: Graduate students -- South Africa , Curriculum-based assessment -- South Africa , Educational evaluation , Employability -- South Africa
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11425 , http://hdl.handle.net/10353/571 , Graduate students -- South Africa , Curriculum-based assessment -- South Africa , Educational evaluation , Employability -- South Africa
- Description: The 21st century has seen nations becoming more competitive yet ironically more interdependent as their future becomes even more dependent on the knowledge, skills, and resourcefulness of its people, creating new opportunities and difficulties for education, (Power, 2000). The education-work-society interdependency has therefore become more important now than ever. It is also because of this triad-interdependency that tertiary education‟s relevance to industry needs has become a crucial issue in societal development. The ever changing needs of South Africa, the unemployment rate, introduction of new technologies and many other ripple effects of globalization have seen more and more pressure mounting on the South African education system as more and more people try to ensure that the education system answers the crucial challenges of the country today and tomorrow.The discussion below provides a detailed account of the context, in which this discourse on curriculum relevance takes place, highlighting some relevant cornerstones of the Reconstruction and Development Programme, (RDP, 1994). Furthermore, this chapter exposes the key research questions and significance of the study. The subsequent chapter 2 gives an account of what other scholars have said on issues of curriculum relevance, development and the South African Higher Education system. Chapter 3 explains the research methodology as a research process used to investigate the problem in question. In this research study the researcher uses both quantitative and qualitative design (online surveys of three groups, these are the graduates, prospective employers and the lecturers). The analysis is based on quantitative data and further substantiated through qualitative data analysis. The subsequent chapter tabulates and lays out the results according to the surveys. The final chapter discusses the findings and makes future recommendations.
- Full Text:
- Date Issued: 2011
The relationship between self-efficacy and ways of coping of first-year university students
- Authors: Goss, Joanne Kate
- Date: 2011
- Subjects: Self-efficacy , Control (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9860 , http://hdl.handle.net/10948/1555 , Self-efficacy , Control (Psychology)
- Description: This is a quantitative, exploratory study focusing on self-efficacy and ways of coping of male and female first-year psychology students at a university in the Nelson Mandela Metropole. The study aimed to explore and describe the relationship between The General Perceived Self- Efficacy Scale and the Ways of Coping Questionnaire of first-year university psychology students. A non-probability convenience sampling technique was employed. The sample consisted of 34 males and 94 females between the ages of 18 and 21 years, who were registered for a first-year psychology module. Descriptive and inferential statistics were used to analyse the data. The results showed moderate correlations between general perceived self-efficacy and problem-focused and focusing on the positive as ways of coping. In addition, the results showed significant relationships between general perceived self-efficacy and problem-focused coping, seeking social support and focusing on the positive as ways of coping. Gender differences with regards to the constructs of coping and self-efficacy were also explored. Limitations of the present research were noted and recommendations for future research were proposed.
- Full Text:
- Date Issued: 2011
- Authors: Goss, Joanne Kate
- Date: 2011
- Subjects: Self-efficacy , Control (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9860 , http://hdl.handle.net/10948/1555 , Self-efficacy , Control (Psychology)
- Description: This is a quantitative, exploratory study focusing on self-efficacy and ways of coping of male and female first-year psychology students at a university in the Nelson Mandela Metropole. The study aimed to explore and describe the relationship between The General Perceived Self- Efficacy Scale and the Ways of Coping Questionnaire of first-year university psychology students. A non-probability convenience sampling technique was employed. The sample consisted of 34 males and 94 females between the ages of 18 and 21 years, who were registered for a first-year psychology module. Descriptive and inferential statistics were used to analyse the data. The results showed moderate correlations between general perceived self-efficacy and problem-focused and focusing on the positive as ways of coping. In addition, the results showed significant relationships between general perceived self-efficacy and problem-focused coping, seeking social support and focusing on the positive as ways of coping. Gender differences with regards to the constructs of coping and self-efficacy were also explored. Limitations of the present research were noted and recommendations for future research were proposed.
- Full Text:
- Date Issued: 2011