An evaluation of the impact of social media on youth political participation in South Africa's 2014 general election: the case of Fort Hare students
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Social media and college student , Elections -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29065 , vital:76585
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc Sci) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
- Authors: Mhlomi, Yolisa
- Date: 2014-12
- Subjects: Political participation -- South Africa , Social media and college student , Elections -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29065 , vital:76585
- Description: The aim of this paper is to evaluate the impact that social media had on influencing youths to engage in political and civic participation in the campaigning for and national elections of 2014, South Africa. Different views may impact on the implementation and use of social networking sites for politics. Youths consist of a larger population in the country but young people are also considered to be apathetic in political activities. However, it is essential to understand the perceptions of youth as this strategy was implemented especially to reach out to them, as they are the beneficiaries of the democratic system as well as future leaders of the country. Using the quantitative method, 200 questionnaires were distributed to the respondents in the University of Fort Hare and analysed by the researcher. The results of the study show that, youth are not entirely apathetic to politics and the use of social media for campaigning was seen as having a positive impact on voters because it managed to shift some youth’s perspectives about voting and how important it is for them to participate in the electoral process. , Thesis (MSoc Sci) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-12
Employee Value Proposition (EVP) and employee engagement in a leading South African car rental company
- Authors: Mtati, Yanela
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53330 , vital:45134
- Description: The car rental industry in South Africa is a highly competitive sector. The industry’s players are constantly faced with the challenge of finding ways in which to enhance their competitiveness. One of the most important challenges for organisations operating in this industry is to deliver the best service to their customers, hence ensuring they retain customer loyalty, growth and securing future profitability. While a number of competitors may rely on various competitive strategies such as lower prices, it could become increasingly challenging for others to adopt similar approaches without comprising profitability. To overcome this challenge, together with Barloworld, Avis has implemented various employment engagement strategies with the aim of attracting, empowering, and retaining an engaged workforce. Research has shown that employees provide organisations with sustainable competitive advantage. More specifically, it has shown that engaged employees outperform disengaged employees. The differentiating factor for organisations in the pursuit of competitive advantage would therefore be an engaged workforce. In order to remain competitive, Avis realised that their employees area source of competitive advantage. In the year 2013, Avis packaged and introduced EVP as a human resources strategy towards winning an engaged workforce. Some of the objectives for taking on this strategy were to increase job satisfaction and motivation amongst employees and thus result in higher job performance. The main purpose of this study was to measure the impact that the introduction of EVP had on employee engagement at Avis. Introducing a structured EVP plan within this organisation was aimed to increase employee engagement and thus, this study aimed to measure the impact of this intervention. A literature review was conducted to expand on the various definitions of EVP, employee engagement and the elements that influence and impact these variables. This research revealed that engaged employees make positive contributions to key business outcomes such as financial performance, productivity and customer satisfaction. An empirical study was conducted by means of a survey with a questionnaire as data collecting tool. The purpose of the structured questionnaire was to validate the findings obtained from the theoretical overview and to assess employees’ perceptions of the EVP elements, engagement factors and the impact of engagement on the organisational success. The population comprised of 142employeesand 65% a response rate was obtained. The key findings of the study indicated that in general employees are engaged and committed to the vision of the organisation. It also indicated that the introduction of EVP improved the manner in which employees’ viewed their leaders and created a leadership culture that was conducive to the success of the organisation. Furthermore, the study validated the existence of a strong positive relationship between EVP, employee motivation, leadership culture, employee retention, compensation and employee engagement. This study provided direction and feedback in the organisation’s attempt to improve engagement levels and ultimately in the pursuit of competitive advantage. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMMU Business School, 2014.
- Full Text:
- Date Issued: 2014-12
- Authors: Mtati, Yanela
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53330 , vital:45134
- Description: The car rental industry in South Africa is a highly competitive sector. The industry’s players are constantly faced with the challenge of finding ways in which to enhance their competitiveness. One of the most important challenges for organisations operating in this industry is to deliver the best service to their customers, hence ensuring they retain customer loyalty, growth and securing future profitability. While a number of competitors may rely on various competitive strategies such as lower prices, it could become increasingly challenging for others to adopt similar approaches without comprising profitability. To overcome this challenge, together with Barloworld, Avis has implemented various employment engagement strategies with the aim of attracting, empowering, and retaining an engaged workforce. Research has shown that employees provide organisations with sustainable competitive advantage. More specifically, it has shown that engaged employees outperform disengaged employees. The differentiating factor for organisations in the pursuit of competitive advantage would therefore be an engaged workforce. In order to remain competitive, Avis realised that their employees area source of competitive advantage. In the year 2013, Avis packaged and introduced EVP as a human resources strategy towards winning an engaged workforce. Some of the objectives for taking on this strategy were to increase job satisfaction and motivation amongst employees and thus result in higher job performance. The main purpose of this study was to measure the impact that the introduction of EVP had on employee engagement at Avis. Introducing a structured EVP plan within this organisation was aimed to increase employee engagement and thus, this study aimed to measure the impact of this intervention. A literature review was conducted to expand on the various definitions of EVP, employee engagement and the elements that influence and impact these variables. This research revealed that engaged employees make positive contributions to key business outcomes such as financial performance, productivity and customer satisfaction. An empirical study was conducted by means of a survey with a questionnaire as data collecting tool. The purpose of the structured questionnaire was to validate the findings obtained from the theoretical overview and to assess employees’ perceptions of the EVP elements, engagement factors and the impact of engagement on the organisational success. The population comprised of 142employeesand 65% a response rate was obtained. The key findings of the study indicated that in general employees are engaged and committed to the vision of the organisation. It also indicated that the introduction of EVP improved the manner in which employees’ viewed their leaders and created a leadership culture that was conducive to the success of the organisation. Furthermore, the study validated the existence of a strong positive relationship between EVP, employee motivation, leadership culture, employee retention, compensation and employee engagement. This study provided direction and feedback in the organisation’s attempt to improve engagement levels and ultimately in the pursuit of competitive advantage. , Thesis (MBA) -- Faculty of Business and Economic Sciences, NMMU Business School, 2014.
- Full Text:
- Date Issued: 2014-12
The use of a rapid incineration field test for determining soil organic carbon in the Southern Cape Region
- Authors: Ackhurst, Albert Arthur
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53336 , vital:45135
- Description: Knowledge of soil organic carbon levels is important both for agricultural effectiveness and soil carbon sequestration accounting, especially against the backdrop of increased climate change impacts and pressure on food production landscapes. However, current methods for soil carbon determination are expensive, energy intensive, time consuming and potentially hazardous leading to a call for alternative methods, which should be cheap, fast, simple, accurate, safe and usable where resources and soil analysis laboratories are limited. To this end the student invented a novel rapid incineration field test (RIFT) for determining soil organic carbon and tested its validity in this study. This method incorporates principles found in dry combustion as well as loss-on-ignition and quantifying organic carbon through gravimetric analysis. In order to illustrate effectiveness and accuracy it was necessary to correlate RIFT with a reference method, in this instance dry combustion with a Leco device as well as another commonly used indirect method namely the Walkley-Black wet chemical oxidation method. Samples from eleven soil forms were collected from the Southern Cape region and they were subjected to the three testing methods. It was found that RIFT is indeed as effective and in 72% of the soil forms even more effective than Walkley-Black. Furthermore, it was ascertained whether the accuracy of RIFT can be improved by correcting for clay content. The correlation of RIFT with clay % was not very significant and clay % as a variable was therefore not used in this study to obtain further refinement of RIFT predictions. Another finding was also that RIFT illustrated less variability than both the Leco and Walkley-Black methods. Lastly it was ascertained that the RIFT device and methodology is indeed cost effective, energy efficient, fast and safe in terms of the need to use potentially hazardous chemicals. , Thesis (MA) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text:
- Date Issued: 2014-12
- Authors: Ackhurst, Albert Arthur
- Date: 2014-12
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/53336 , vital:45135
- Description: Knowledge of soil organic carbon levels is important both for agricultural effectiveness and soil carbon sequestration accounting, especially against the backdrop of increased climate change impacts and pressure on food production landscapes. However, current methods for soil carbon determination are expensive, energy intensive, time consuming and potentially hazardous leading to a call for alternative methods, which should be cheap, fast, simple, accurate, safe and usable where resources and soil analysis laboratories are limited. To this end the student invented a novel rapid incineration field test (RIFT) for determining soil organic carbon and tested its validity in this study. This method incorporates principles found in dry combustion as well as loss-on-ignition and quantifying organic carbon through gravimetric analysis. In order to illustrate effectiveness and accuracy it was necessary to correlate RIFT with a reference method, in this instance dry combustion with a Leco device as well as another commonly used indirect method namely the Walkley-Black wet chemical oxidation method. Samples from eleven soil forms were collected from the Southern Cape region and they were subjected to the three testing methods. It was found that RIFT is indeed as effective and in 72% of the soil forms even more effective than Walkley-Black. Furthermore, it was ascertained whether the accuracy of RIFT can be improved by correcting for clay content. The correlation of RIFT with clay % was not very significant and clay % as a variable was therefore not used in this study to obtain further refinement of RIFT predictions. Another finding was also that RIFT illustrated less variability than both the Leco and Walkley-Black methods. Lastly it was ascertained that the RIFT device and methodology is indeed cost effective, energy efficient, fast and safe in terms of the need to use potentially hazardous chemicals. , Thesis (MA) -- Faculty of Science, School of Natural Resource Management, 2021
- Full Text:
- Date Issued: 2014-12
WAIS-IV test performance in the South African context: a comparison between existing grade 12 WAIS-III norms with grade 12 WAIS-IV for populations that were educated in former-DET schools
- Klopper, Coenraad Christoffel
- Authors: Klopper, Coenraad Christoffel
- Date: 2014-12
- Subjects: Intelligence tests , Wechsler Adult Intelligence Scale , Psychological tests
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25891 , vital:64561
- Description: Accurate IQ assessment in the field of psychology is a constant pursuit and an ethical requirement in the field of psychology. In the South African cross cultural context, the use of within group norms are very important in order to improve the accuracy and interpretive value of psychometric tests. This is due to differences between cultural groups in South Africa in terms of IQ test performance of which the biggest mediating factor is quality of education. Shuttleworth-Edwards et al. (2013), performed cross cultural normative research on the WAIS-III in which participants were stringently stratified for age, level of education, quality of education, race and language. The current study is a partial duplication of the WAIS-III normative study by Shuttleworth-Edwards et al. (2013). The sub-group in that study that indicated the most significant lowering relative to the US/UK standardisation of the WAIS-III was duplicated in this study and tested with the WAIS-IV. This group included participants stratified for race (Black South African), language (Xhosa speaking), level of education (Grade 12) and quality of education (previous Department of Education and Training (former-DET) schools). The WAIS-IV results of the current study were statistically compared with the WAIS-III results from Shuttleworth-Edwards et al. (2013). No statistically significant differences were found between the WAIS-III test performance and WAIS-IV test performance in terms of scaled score comparisons, index score comparisons and full scale index comparisons. Further comparisons were made between male and female and urban and rural participants. Significant differences were found between males and females on the verbal comprehension index. No significant differences were found between the urban and rural participants. , Thesis (MA) -- Faculty of Social Science and Humanities, 2021
- Full Text:
- Date Issued: 2014-12
- Authors: Klopper, Coenraad Christoffel
- Date: 2014-12
- Subjects: Intelligence tests , Wechsler Adult Intelligence Scale , Psychological tests
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25891 , vital:64561
- Description: Accurate IQ assessment in the field of psychology is a constant pursuit and an ethical requirement in the field of psychology. In the South African cross cultural context, the use of within group norms are very important in order to improve the accuracy and interpretive value of psychometric tests. This is due to differences between cultural groups in South Africa in terms of IQ test performance of which the biggest mediating factor is quality of education. Shuttleworth-Edwards et al. (2013), performed cross cultural normative research on the WAIS-III in which participants were stringently stratified for age, level of education, quality of education, race and language. The current study is a partial duplication of the WAIS-III normative study by Shuttleworth-Edwards et al. (2013). The sub-group in that study that indicated the most significant lowering relative to the US/UK standardisation of the WAIS-III was duplicated in this study and tested with the WAIS-IV. This group included participants stratified for race (Black South African), language (Xhosa speaking), level of education (Grade 12) and quality of education (previous Department of Education and Training (former-DET) schools). The WAIS-IV results of the current study were statistically compared with the WAIS-III results from Shuttleworth-Edwards et al. (2013). No statistically significant differences were found between the WAIS-III test performance and WAIS-IV test performance in terms of scaled score comparisons, index score comparisons and full scale index comparisons. Further comparisons were made between male and female and urban and rural participants. Significant differences were found between males and females on the verbal comprehension index. No significant differences were found between the urban and rural participants. , Thesis (MA) -- Faculty of Social Science and Humanities, 2021
- Full Text:
- Date Issued: 2014-12
An assessment of electronic-governance as a support system for service delivery in the public sector
- Maramura, Tafadzwa Clementine https://orcid.org/0000-0002-4419-1887
- Authors: Maramura, Tafadzwa Clementine https://orcid.org/0000-0002-4419-1887
- Date: 2014-11
- Subjects: Civil service -- South Africa , Electronic government information , Internet in public administration
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26053 , vital:64786
- Description: This is an exploratory research that is aimed at assessing the role of e-governance tools and initiatives on how they can be support systems for service delivery in the public service sector. The rationale of this research came as a response to the ever increasing and recurring service delivery protests that are underpinning the Government of South Africa. Hence the inception of electronic-governance (e-governance) comes at the right time with the aim of mordernising and reforming the public sector for efficient and effective service delivery. E-governance is about transforming governance to be more citizens centered and thus technology is the tool in this effort which can enable change in how the government works and how public officials interact with the public at stake. Cloete (2012:128) asserts that e-governance is the future of public governance and public service delivery globally. Thus governments that do not make the transition from paper-based systems of public administration to electronic platforms of public service delivery may swiftly undermine their chances of developing their societies as 21st century information societies. This research however does not imply that e-governance will be a miraculous panacea to poor service provision in South Africa, but it implies that its role in the public service sector can be as a support system for efficiency and effectiveness in service delivery. This is coupled by the research findings which are espoused on through a secondary data approach and thematically analysed to assess the role of e-governance as a support system on service delivery in the public service sector. Thus from the literature it is remarkable to acknowledge that the South African public service sector has successfully established and implemented a significant number of e-governance initiatives from 1994 to present day. Simultaneously to reveal how e-governance can be a support system for the public service, it is not one-dimensional, it is however multidimensional and thereby cutting across the entire field of public administration inter alia the public service sector. The already initiated e-governance tools in South Africa also range from national, provincial and municipal level thereby clearly revealing how e-governance can also be a support system to cooperative governance and intergovernmental relations inter alia. This research does not imply that e-governance can be a panacea to the public service sector ills but however with the fast moving techno-global world the move to an ICT driven public service sector has more merits than demerits to the general public who are at the receiving end of public services. , Thesis (MPA) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-11
An assessment of electronic-governance as a support system for service delivery in the public sector
- Authors: Maramura, Tafadzwa Clementine https://orcid.org/0000-0002-4419-1887
- Date: 2014-11
- Subjects: Civil service -- South Africa , Electronic government information , Internet in public administration
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26053 , vital:64786
- Description: This is an exploratory research that is aimed at assessing the role of e-governance tools and initiatives on how they can be support systems for service delivery in the public service sector. The rationale of this research came as a response to the ever increasing and recurring service delivery protests that are underpinning the Government of South Africa. Hence the inception of electronic-governance (e-governance) comes at the right time with the aim of mordernising and reforming the public sector for efficient and effective service delivery. E-governance is about transforming governance to be more citizens centered and thus technology is the tool in this effort which can enable change in how the government works and how public officials interact with the public at stake. Cloete (2012:128) asserts that e-governance is the future of public governance and public service delivery globally. Thus governments that do not make the transition from paper-based systems of public administration to electronic platforms of public service delivery may swiftly undermine their chances of developing their societies as 21st century information societies. This research however does not imply that e-governance will be a miraculous panacea to poor service provision in South Africa, but it implies that its role in the public service sector can be as a support system for efficiency and effectiveness in service delivery. This is coupled by the research findings which are espoused on through a secondary data approach and thematically analysed to assess the role of e-governance as a support system on service delivery in the public service sector. Thus from the literature it is remarkable to acknowledge that the South African public service sector has successfully established and implemented a significant number of e-governance initiatives from 1994 to present day. Simultaneously to reveal how e-governance can be a support system for the public service, it is not one-dimensional, it is however multidimensional and thereby cutting across the entire field of public administration inter alia the public service sector. The already initiated e-governance tools in South Africa also range from national, provincial and municipal level thereby clearly revealing how e-governance can also be a support system to cooperative governance and intergovernmental relations inter alia. This research does not imply that e-governance can be a panacea to the public service sector ills but however with the fast moving techno-global world the move to an ICT driven public service sector has more merits than demerits to the general public who are at the receiving end of public services. , Thesis (MPA) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-11
An investigation of poverty as a contributory factor to sexual risk-taking behaviour among female adolescent scholars: a case study of Mbuzini Village Mpumalanga province
- Authors: Mahlalela, Vusi Zakhele
- Date: 2014-11
- Subjects: Risk-taking (Psychology) in adolescence , Sexually transmitted diseases , College students -- Sexual behavior
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26548 , vital:65584
- Description: The study investigated poverty as a contributory factor to risky sexual behaviour among female adolescent scholars. A qualitative approach was employed in this study, which was carried out among 27 participants, 21 of whom were females between the ages of 14 and 27 years. 6 of whom were drawn from the ranks of social workers, community development practitioners, community leaders and parents who formed the school governing body. Non- probability sampling methods and purposive sampling techniques were employed to select the sample. The data was collected by means of one-to-one in-depth interviews and a once-off focus group discussion. The findings of the study revealed that most of the participants were sexually active: only one was sexually inactive and some had children. The study also found that some of the participants received money from their sexual partners. These findings are discussed in the conclusion to the study and appropriate recommendations are made. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Mahlalela, Vusi Zakhele
- Date: 2014-11
- Subjects: Risk-taking (Psychology) in adolescence , Sexually transmitted diseases , College students -- Sexual behavior
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26548 , vital:65584
- Description: The study investigated poverty as a contributory factor to risky sexual behaviour among female adolescent scholars. A qualitative approach was employed in this study, which was carried out among 27 participants, 21 of whom were females between the ages of 14 and 27 years. 6 of whom were drawn from the ranks of social workers, community development practitioners, community leaders and parents who formed the school governing body. Non- probability sampling methods and purposive sampling techniques were employed to select the sample. The data was collected by means of one-to-one in-depth interviews and a once-off focus group discussion. The findings of the study revealed that most of the participants were sexually active: only one was sexually inactive and some had children. The study also found that some of the participants received money from their sexual partners. These findings are discussed in the conclusion to the study and appropriate recommendations are made. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
Exploring the usefulness of learning management system (LMS) in higher education learning development at a historically disadvantaged Eastern Cape University
- Authors: Holmberg, Lorraine
- Date: 2014-11
- Subjects: Instructional systems--Management , Education, Higher--Management , Universities and colleges--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24216 , vital:62443
- Description: This case study aims to explore how using a Learning Management System (LMS*) to mediate learning, impacts learning development (LD) at a historically disadvantaged university (HDU) in the Eastern Cape (EC). Massification and the technological revolution have together changed the way that teaching and learning takes place, more especially in higher education institutions (HEI). Due to the increased demand for higher education (HE), computers have been used to mediate the learning space, altering the skills teachers and learners are required to have. The LMS under exploration provides a multitude of tools for managing both administrative and academic tasks. This study has drawn extensively from the framework of Activity Theory (AT), and Vygotsky’s theory of learning development to develop understandings and guide data analysis in preparation for discussion and for conclusions to be drawn. The study mostly investigated student interaction patterns with the various tools of the LMS in an effort to determine how these activities impact learning development. A mixed methods approach was used to address data that was automatically generated by the LMS; quantitative analysis using descriptive and inferential statistics was applied to numeric data, while thematic analysis was applied to textual data obtained from the threaded discussion that transpired between members of the learning community. Findings show the impact which context has on learner development and how, unless all the tools of the LMS are formally integrated for learning purposes, learners can become distracted by the functions these tools offer. This in particular pertains to learners struggling to integrate and assimilate new information. Further to this, the discussion tools serve social purposes, and have the potential to benefit constructionist learning principles, on condition that activity on the tools is structured and has clear outcomes. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Holmberg, Lorraine
- Date: 2014-11
- Subjects: Instructional systems--Management , Education, Higher--Management , Universities and colleges--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24216 , vital:62443
- Description: This case study aims to explore how using a Learning Management System (LMS*) to mediate learning, impacts learning development (LD) at a historically disadvantaged university (HDU) in the Eastern Cape (EC). Massification and the technological revolution have together changed the way that teaching and learning takes place, more especially in higher education institutions (HEI). Due to the increased demand for higher education (HE), computers have been used to mediate the learning space, altering the skills teachers and learners are required to have. The LMS under exploration provides a multitude of tools for managing both administrative and academic tasks. This study has drawn extensively from the framework of Activity Theory (AT), and Vygotsky’s theory of learning development to develop understandings and guide data analysis in preparation for discussion and for conclusions to be drawn. The study mostly investigated student interaction patterns with the various tools of the LMS in an effort to determine how these activities impact learning development. A mixed methods approach was used to address data that was automatically generated by the LMS; quantitative analysis using descriptive and inferential statistics was applied to numeric data, while thematic analysis was applied to textual data obtained from the threaded discussion that transpired between members of the learning community. Findings show the impact which context has on learner development and how, unless all the tools of the LMS are formally integrated for learning purposes, learners can become distracted by the functions these tools offer. This in particular pertains to learners struggling to integrate and assimilate new information. Further to this, the discussion tools serve social purposes, and have the potential to benefit constructionist learning principles, on condition that activity on the tools is structured and has clear outcomes. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
Factors responsible for sex practice, STIs and non-contraceptive use among female adolescents: a case study of an Eastern Cape institute, South Africa
- Authors: Fagbamila, Tolulope Odunola
- Date: 2014-11
- Subjects: Sexually transmitted diseases -- South Africa -- Eastern Cape. , Teenage pregnancy -- South Africa -- Eastern Cape , Abused teenagers -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29021 , vital:76465
- Description: In spite of the number of studies that have been carried out on the factors responsible for sex practice and non-contraceptive use among the female adolescents, very little impact has been felt on female adolescents‟ sexual behaviour. This is seen from a very high record of unintended pregnancy rates, STIs and illegal abortion among them. An initial assumption that adolescents always try not to get pregnant since most of the pregnancies are unplanned but reverse is the case in this era. What are the responsible factors to this social challenge? The researcher wanted to know the underlying epidemiological factors that are responsible for the early sexual behaviour and non-contraceptive use among the female adolescents using descriptive statistics and two-way ANOVA. Descriptive statistics describe the basic features of the data in a study and provide simple summaries about the sample and the measures. They also form the basis of virtually every quantitative analysis of data together with simple graphic summaries. A Two-way ANOVA is used to compare the effect of multiple levels of two factors with multiple observations at each level. However, it is expected that the outcome of the research would help to generate information that will assist in identifying and introducing strategies to reduce adolescent pregnancy rates, sexually transmitted infections and to encourage greater levels of contraceptive measures usage among the female adolescents. Research findings were that more than half of the female adolescents were extremely poor. Majority of the young female adolescents were being taken care of by single parents, their mothers only. Nevertheless, the level of contraceptive measures unawareness among the female adolescents decreased as their academic performance increased. Hence, the highly contacted sexually transmitted infection among the middle aged female adolescents was HIV/AIDS 4,5 percent while the highly contacted sexually transmitted infection among the adult female adolescent was syphilis 7.2 percent. The main factor attributed to factor responsible for their sex practice was experimentation followed by family status. By “strongly agree” opinion rating, poverty was rated as the main factor responsible for sex practice, STIs and non-contraceptive use among female adolescents. Among the factors associated with sexually transmitted infections, poverty was also rated the main factor. Female adolescent income source had no effect on their academic performance, be it parents, guardian, grants, NGO or friends. Sex practice had an effect on female adolescents academic performance. Nevertheless, adolescent income source and contraceptive category/method never had effect on poverty opinion, as a factor responsible for sex practice, STIs and non-contraceptive use among female adolescents while contraceptive awareness had a significant effect on poverty opinion, as STIs risk factors. However, further studies will be carried out later in future using one way Analysis of Variance to study each of the factor effects on the dependent variables. , Thesis (MSc) -- Faculty of Science and Agriculture, 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Fagbamila, Tolulope Odunola
- Date: 2014-11
- Subjects: Sexually transmitted diseases -- South Africa -- Eastern Cape. , Teenage pregnancy -- South Africa -- Eastern Cape , Abused teenagers -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/29021 , vital:76465
- Description: In spite of the number of studies that have been carried out on the factors responsible for sex practice and non-contraceptive use among the female adolescents, very little impact has been felt on female adolescents‟ sexual behaviour. This is seen from a very high record of unintended pregnancy rates, STIs and illegal abortion among them. An initial assumption that adolescents always try not to get pregnant since most of the pregnancies are unplanned but reverse is the case in this era. What are the responsible factors to this social challenge? The researcher wanted to know the underlying epidemiological factors that are responsible for the early sexual behaviour and non-contraceptive use among the female adolescents using descriptive statistics and two-way ANOVA. Descriptive statistics describe the basic features of the data in a study and provide simple summaries about the sample and the measures. They also form the basis of virtually every quantitative analysis of data together with simple graphic summaries. A Two-way ANOVA is used to compare the effect of multiple levels of two factors with multiple observations at each level. However, it is expected that the outcome of the research would help to generate information that will assist in identifying and introducing strategies to reduce adolescent pregnancy rates, sexually transmitted infections and to encourage greater levels of contraceptive measures usage among the female adolescents. Research findings were that more than half of the female adolescents were extremely poor. Majority of the young female adolescents were being taken care of by single parents, their mothers only. Nevertheless, the level of contraceptive measures unawareness among the female adolescents decreased as their academic performance increased. Hence, the highly contacted sexually transmitted infection among the middle aged female adolescents was HIV/AIDS 4,5 percent while the highly contacted sexually transmitted infection among the adult female adolescent was syphilis 7.2 percent. The main factor attributed to factor responsible for their sex practice was experimentation followed by family status. By “strongly agree” opinion rating, poverty was rated as the main factor responsible for sex practice, STIs and non-contraceptive use among female adolescents. Among the factors associated with sexually transmitted infections, poverty was also rated the main factor. Female adolescent income source had no effect on their academic performance, be it parents, guardian, grants, NGO or friends. Sex practice had an effect on female adolescents academic performance. Nevertheless, adolescent income source and contraceptive category/method never had effect on poverty opinion, as a factor responsible for sex practice, STIs and non-contraceptive use among female adolescents while contraceptive awareness had a significant effect on poverty opinion, as STIs risk factors. However, further studies will be carried out later in future using one way Analysis of Variance to study each of the factor effects on the dependent variables. , Thesis (MSc) -- Faculty of Science and Agriculture, 2014
- Full Text:
- Date Issued: 2014-11
The effectiveness of business incubators in enhancing growth, survival and performance of small, medium and micro enterprises in the Eastern Cape province, South Africa
- Authors: Sarakunze, Annie.
- Date: 2014-11
- Subjects: Entrepreneurship , Economic development -- South Africa , Small business
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26786 , vital:66005
- Description: In both developed and developing countries, the growth of Small, Medium and Micro Enterprise sector is considered an important factor in boosting the economic well-being of a country. The governments of many countries play a basic role in creating policies and programmes which support the growth of Small, Medium and Micro Enterprises. One of the initiatives used by the governments to nurture small businesses is business incubation.This study investigated the effectiveness of business incubators in enhancing growth, survival and performance of Small, Medium and Micro Enterprises (SMMEs) in selected areas of the Eastern Cape Province. The objectives of this study were to assess the impact of business incubation on the performance of SMMEs, determine the impact of business incubation on the growth of the SMME, to assess the impact of business incubation on the survival of the SMMEs and to investigate whether SMMEs are satisfied with the role of business incubators in their areas.This study employed a stratified simple random sampling technique. The population was first divided into six homogeneous strata and then simple random sampling was then employed. The self-administered questionnaires were then distributed into each and every stratum randomly. Simple random sampling was used because it enabled each and every member in the strata to have an equal chance of being selected. Owners, managers and employees were used as respondents in this study and a total sample of 200 SMMEs answered the questionnaire. The study followed a quantitative research design as it involved variables such as growth, firm performance and survival which have measures that involves the use of figures such as sales, number of employees and total value of assets. The data was analysed by Anova, Pearson Chi-Square and T-test statistical methods in order to arrive at findings and conclusions. Based on the findings from this survey it was found that business incubators are effective in enhancing growth, survival and performance of SMMEs. Although other researchers found that there are no significant variations in growth, survival and performance of incubated and non-incubated businesses, this study however recognizes the importance of business incubation to SMMEs. This study concurs with most findings by many researchers of business incubation and thus recommends vigorous business incubation awareness to the SMMEs and networking. , Thesis (MBm) -- Faculty of Management and Commerce , 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Sarakunze, Annie.
- Date: 2014-11
- Subjects: Entrepreneurship , Economic development -- South Africa , Small business
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26786 , vital:66005
- Description: In both developed and developing countries, the growth of Small, Medium and Micro Enterprise sector is considered an important factor in boosting the economic well-being of a country. The governments of many countries play a basic role in creating policies and programmes which support the growth of Small, Medium and Micro Enterprises. One of the initiatives used by the governments to nurture small businesses is business incubation.This study investigated the effectiveness of business incubators in enhancing growth, survival and performance of Small, Medium and Micro Enterprises (SMMEs) in selected areas of the Eastern Cape Province. The objectives of this study were to assess the impact of business incubation on the performance of SMMEs, determine the impact of business incubation on the growth of the SMME, to assess the impact of business incubation on the survival of the SMMEs and to investigate whether SMMEs are satisfied with the role of business incubators in their areas.This study employed a stratified simple random sampling technique. The population was first divided into six homogeneous strata and then simple random sampling was then employed. The self-administered questionnaires were then distributed into each and every stratum randomly. Simple random sampling was used because it enabled each and every member in the strata to have an equal chance of being selected. Owners, managers and employees were used as respondents in this study and a total sample of 200 SMMEs answered the questionnaire. The study followed a quantitative research design as it involved variables such as growth, firm performance and survival which have measures that involves the use of figures such as sales, number of employees and total value of assets. The data was analysed by Anova, Pearson Chi-Square and T-test statistical methods in order to arrive at findings and conclusions. Based on the findings from this survey it was found that business incubators are effective in enhancing growth, survival and performance of SMMEs. Although other researchers found that there are no significant variations in growth, survival and performance of incubated and non-incubated businesses, this study however recognizes the importance of business incubation to SMMEs. This study concurs with most findings by many researchers of business incubation and thus recommends vigorous business incubation awareness to the SMMEs and networking. , Thesis (MBm) -- Faculty of Management and Commerce , 2014
- Full Text:
- Date Issued: 2014-11
The effects of social media on relationship patterns among adolescents: A study of students in three selected high schools of Alice in Eastern Cape, South Africa
- Kalasaru, Onai Ronald https://orcid.org/0000-0002-4984-4250
- Authors: Kalasaru, Onai Ronald https://orcid.org/0000-0002-4984-4250
- Date: 2014-11
- Subjects: Online social networks , Mass media and children
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25085 , vital:63966
- Description: Technology with the aid of the internet and social media has brought so much into the world, it has managed to reach and develop almost the entire world and this includes remote areas of Sub-Saharan countries like South Africa. These are the least developed and usually the last regions of the world to receive technology. It should be noted that most of the times, technology is bound to make an impact as people use it and this was the motive behind this study which aimed at assessing the effects of socialised media on adolescents who are the future of South Africa. In the study, the researcher aims at discovering whether the use of social media engines among adolescents affects the ways with which they relate with one another. The study which adopted a quantitative methodology was conducted on matriculating students from three randomly selected schools from within and surrounding town of Alice in Eastern Cape South Africa. Respondents were sampled conveniently and data was collected through self-administered questionnaires. From the results and conclusions, it showed that technology has reached South Africa’s remote areas and young people like adolescents have many uses for it. However, they proved that even though they now have technology in form of the internet and social media, it does not affect the ways with which they form and maintained social relations. This means that technology does not have a significant impact in the relationship patterns of adolescents in remote areas of South Africa. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Kalasaru, Onai Ronald https://orcid.org/0000-0002-4984-4250
- Date: 2014-11
- Subjects: Online social networks , Mass media and children
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25085 , vital:63966
- Description: Technology with the aid of the internet and social media has brought so much into the world, it has managed to reach and develop almost the entire world and this includes remote areas of Sub-Saharan countries like South Africa. These are the least developed and usually the last regions of the world to receive technology. It should be noted that most of the times, technology is bound to make an impact as people use it and this was the motive behind this study which aimed at assessing the effects of socialised media on adolescents who are the future of South Africa. In the study, the researcher aims at discovering whether the use of social media engines among adolescents affects the ways with which they relate with one another. The study which adopted a quantitative methodology was conducted on matriculating students from three randomly selected schools from within and surrounding town of Alice in Eastern Cape South Africa. Respondents were sampled conveniently and data was collected through self-administered questionnaires. From the results and conclusions, it showed that technology has reached South Africa’s remote areas and young people like adolescents have many uses for it. However, they proved that even though they now have technology in form of the internet and social media, it does not affect the ways with which they form and maintained social relations. This means that technology does not have a significant impact in the relationship patterns of adolescents in remote areas of South Africa. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
The implementation of the Child Justice Act: experiences of social workers working as probation officers
- Authors: Mkokeli, Babalwa
- Date: 2014-11
- Subjects: Children -- Legal status, laws, etc , Probation officers , Juvenile justice, Administration of
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25282 , vital:64138
- Description: The implementation of the Child Justice Act (Act No. 75 of 2008) started on 01 April 2010. The law regulates ways of handling children found to be in conflict with the law. Whilst this law was still a Bill, probation officers who are social workers employed by Social Development & Special Programmes were already bound to work with young offenders, employed under the Probation Services Act no.116 of 2002. Probation officers had clear regulations on their role and responsibility towards children found in conflict with the law, unlike other stakeholders working within the sphere of child justice. Absence of the law encompassing child justice caused a struggle for probation officer because stakeholders like South African Police Service (SAPS), National Prosecuting Authority (NPA) and the Department of Justice services were not considering services of probation officers important. The situation was frustrating because there was lack of cooperation between probation officers and role players like police, prosecutors and magistrates which often led to gross irregularities on cases of young offenders. The aim of this study was to explore the experiences of probation officers with the implementation of the Child Justice Act, particularly working relations with the above mentioned stakeholders. The researcher used Interpretative Phenomenological Analysis (IPA), a qualitative research approach which is committed to examining people’s daily experiences. In collecting data the researcher used a semi-structured questionnaire schedule comprising open rather than closed-ended questions. The researcher intended to interview fifteen probation officers working at OR Tambo District Municipality. A purposive sampling was used targeting officers who are aware of the child justice system before and after the implementation of the Act. Study findings revealed improvement on working relations between SAPS, NPA and Justice such as (i) increase in the rate of informing probation officers about arrested children, (ii) sitting of preliminary inquiries (PIs), (iii) drop in the number of detained children, (iv) practice of in camera proceedings for young offenders. However, despite the presence of the Child Justice Act (CJA) findings also revealed challenges which were the following: (i) drop in the number of arrested or diverted children, (ii) non-compliance by SAPS to inform POs about arrested children especially during weekends, which often results in parents not being aware that their children are in custody, (iii) areas where PIs are not held, areas where they are not regular as well as non-uniformity in how PIs are conducted, and (iv) cases of children held in public during court proceedings and cases of young offenders handled as adult cases. The following were made as recommendations arising from the study: (i) enforcement of Child Justice Forums at local levels, (ii) strengthening of responsibility and accountability by all stakeholders, and (iii) building capacity and effective monitoring from down up. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
- Authors: Mkokeli, Babalwa
- Date: 2014-11
- Subjects: Children -- Legal status, laws, etc , Probation officers , Juvenile justice, Administration of
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25282 , vital:64138
- Description: The implementation of the Child Justice Act (Act No. 75 of 2008) started on 01 April 2010. The law regulates ways of handling children found to be in conflict with the law. Whilst this law was still a Bill, probation officers who are social workers employed by Social Development & Special Programmes were already bound to work with young offenders, employed under the Probation Services Act no.116 of 2002. Probation officers had clear regulations on their role and responsibility towards children found in conflict with the law, unlike other stakeholders working within the sphere of child justice. Absence of the law encompassing child justice caused a struggle for probation officer because stakeholders like South African Police Service (SAPS), National Prosecuting Authority (NPA) and the Department of Justice services were not considering services of probation officers important. The situation was frustrating because there was lack of cooperation between probation officers and role players like police, prosecutors and magistrates which often led to gross irregularities on cases of young offenders. The aim of this study was to explore the experiences of probation officers with the implementation of the Child Justice Act, particularly working relations with the above mentioned stakeholders. The researcher used Interpretative Phenomenological Analysis (IPA), a qualitative research approach which is committed to examining people’s daily experiences. In collecting data the researcher used a semi-structured questionnaire schedule comprising open rather than closed-ended questions. The researcher intended to interview fifteen probation officers working at OR Tambo District Municipality. A purposive sampling was used targeting officers who are aware of the child justice system before and after the implementation of the Act. Study findings revealed improvement on working relations between SAPS, NPA and Justice such as (i) increase in the rate of informing probation officers about arrested children, (ii) sitting of preliminary inquiries (PIs), (iii) drop in the number of detained children, (iv) practice of in camera proceedings for young offenders. However, despite the presence of the Child Justice Act (CJA) findings also revealed challenges which were the following: (i) drop in the number of arrested or diverted children, (ii) non-compliance by SAPS to inform POs about arrested children especially during weekends, which often results in parents not being aware that their children are in custody, (iii) areas where PIs are not held, areas where they are not regular as well as non-uniformity in how PIs are conducted, and (iv) cases of children held in public during court proceedings and cases of young offenders handled as adult cases. The following were made as recommendations arising from the study: (i) enforcement of Child Justice Forums at local levels, (ii) strengthening of responsibility and accountability by all stakeholders, and (iii) building capacity and effective monitoring from down up. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-11
Perceptions of social media as a tool for research: a study of postgraduate students, University of Fort Hare, Alice campus
- Authors: Abolanle, Ogunnubi Adeyemi
- Date: 2014-10
- Subjects: University of Fort Hare , Media literacy , Internet research
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26381 , vital:65299
- Description: The study aimed at examining the perceptions of social media as a tool for research among postgraduate students at the University of Fort Hare, Alice campus. Data were collected using a quantitative research approach by administering structured questionnaires to 310 postgraduate students under the cluster sampling across different faculties and departments, and analysed by SPSS Statistical software and Chi-square test. 264 questionnaires were returned for analysis and these respondents maintained that they utilized social media platforms for their academic research. The findings further revealed that social media has to a large extent improved students‟ research activities as they frequently seek practical knowledge for demonstration and tutorship. Furthermore, the respondents regard social media as a good platform for research topics in audio and video formats, scholarly articles, journals and books. This study concluded that since students explore the social media platforms and search engines for various reasons, academic research inclusive, it therefore becomes imperative to create more links within the social media for students to explore books, scholarly journals and articles necessary for research and academic purposes. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-10
- Authors: Abolanle, Ogunnubi Adeyemi
- Date: 2014-10
- Subjects: University of Fort Hare , Media literacy , Internet research
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26381 , vital:65299
- Description: The study aimed at examining the perceptions of social media as a tool for research among postgraduate students at the University of Fort Hare, Alice campus. Data were collected using a quantitative research approach by administering structured questionnaires to 310 postgraduate students under the cluster sampling across different faculties and departments, and analysed by SPSS Statistical software and Chi-square test. 264 questionnaires were returned for analysis and these respondents maintained that they utilized social media platforms for their academic research. The findings further revealed that social media has to a large extent improved students‟ research activities as they frequently seek practical knowledge for demonstration and tutorship. Furthermore, the respondents regard social media as a good platform for research topics in audio and video formats, scholarly articles, journals and books. This study concluded that since students explore the social media platforms and search engines for various reasons, academic research inclusive, it therefore becomes imperative to create more links within the social media for students to explore books, scholarly journals and articles necessary for research and academic purposes. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-10
A model for enhancing trust in information systems tools within Nigeria media planning agencies
- Olaitan, Olutoyin https://orcid.org/0000-0002-5350-4136
- Authors: Olaitan, Olutoyin https://orcid.org/0000-0002-5350-4136
- Date: 2014-06
- Subjects: Information resources management--Nigeria , Information networks--Security measures--Nigeria
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24904 , vital:63669
- Description: Media Planning Agencies (MPAs) are responsible for purchasing time and advertising space on behalf of organisations who desire to advertise or market their products and services (Kupoluyi, 2011). These agencies perform their tasks based on the evaluative factors of pricing, demographics, reach, psychographics and other factors relevant to the clients’ target market which are all enabled by technology. MPAs utilise industry specific Information Systems (IS) tools in their business processes. McKnight (2005) contends that trust in IS tools directly impacts on the willingness of a user to depend on such IS tools for accomplishing their goals. The research problem exists due to the fact that the current level of trust in these IS tools employed within MPAs in Nigeria is very low (Egbonwon, 2012). This distrust has led to the non-optimisation of the available tools. Empirical findings reveal that most of the personnel in these agencies prefer to actualise their processes manually, or at best with the limited aid of Microsoft Office tools such as Excel and Word (Akharume, 2012). Thus the research problem investigated trust-enhancing mechanisms for IS tools in MPAs to improve efficient and effective use. The study conducted an in-depth critique of the role of trust in maximizing IS tools to improve efficiency and effectiveness within Nigerian Small and Medium Enterprises (SMEs). This was done through a literature review and questionnaire. The output of the research process is the proposition of a model for enhancing trust in IS tools within MPAs. The study proposed that the enhancement of trust in IS tools will lead to optimal use of these tools, thus leading to efficiency and effectiveness in the operations of Nigerian MPAs. The model was developed by following Hevner, March, Park and Ram’s (2004) Design Science research guidelines and validated through an expert review process. The outcome of the expert review was used to further refine the model and thereafter conclude the study. It is believed that the outcome of this research will empower MPAs to become competitive nationally, grow into global players in their industry and achieve efficiency with regards to how business is conducted. , Thesis (MCom IS) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-06
- Authors: Olaitan, Olutoyin https://orcid.org/0000-0002-5350-4136
- Date: 2014-06
- Subjects: Information resources management--Nigeria , Information networks--Security measures--Nigeria
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24904 , vital:63669
- Description: Media Planning Agencies (MPAs) are responsible for purchasing time and advertising space on behalf of organisations who desire to advertise or market their products and services (Kupoluyi, 2011). These agencies perform their tasks based on the evaluative factors of pricing, demographics, reach, psychographics and other factors relevant to the clients’ target market which are all enabled by technology. MPAs utilise industry specific Information Systems (IS) tools in their business processes. McKnight (2005) contends that trust in IS tools directly impacts on the willingness of a user to depend on such IS tools for accomplishing their goals. The research problem exists due to the fact that the current level of trust in these IS tools employed within MPAs in Nigeria is very low (Egbonwon, 2012). This distrust has led to the non-optimisation of the available tools. Empirical findings reveal that most of the personnel in these agencies prefer to actualise their processes manually, or at best with the limited aid of Microsoft Office tools such as Excel and Word (Akharume, 2012). Thus the research problem investigated trust-enhancing mechanisms for IS tools in MPAs to improve efficient and effective use. The study conducted an in-depth critique of the role of trust in maximizing IS tools to improve efficiency and effectiveness within Nigerian Small and Medium Enterprises (SMEs). This was done through a literature review and questionnaire. The output of the research process is the proposition of a model for enhancing trust in IS tools within MPAs. The study proposed that the enhancement of trust in IS tools will lead to optimal use of these tools, thus leading to efficiency and effectiveness in the operations of Nigerian MPAs. The model was developed by following Hevner, March, Park and Ram’s (2004) Design Science research guidelines and validated through an expert review process. The outcome of the expert review was used to further refine the model and thereafter conclude the study. It is believed that the outcome of this research will empower MPAs to become competitive nationally, grow into global players in their industry and achieve efficiency with regards to how business is conducted. , Thesis (MCom IS) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-06
A model for enhancing trust in information systems tools within Nigerian media planning agencies
- Olutoyin, Olaitan https://orcid.org/0000-0002-5350-4136
- Authors: Olutoyin, Olaitan https://orcid.org/0000-0002-5350-4136
- Date: 2014-06
- Subjects: Advertising media planning -- Nigeria , Information resources management -- Nigeria
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25592 , vital:64337
- Description: Media Planning Agencies (MPAs) are responsible for purchasing time and advertising space on behalf of organisations who desire to advertise or market their products and services (Kupoluyi, 2011). These agencies perform their tasks based on the evaluative factors of pricing, demographics, reach, psychographics and other factors relevant to the clients’ target market which are all enabled by technology. MPAs utilise industry specific Information Systems (IS) tools in their business processes. McKnight (2005) contends that trust in IS tools directly impacts on the willingness of a user to depend on such IS tools for accomplishing their goals. The research problem exists due to the fact that the current level of trust in these IS tools employed within MPAs in Nigeria is very low (Egbonwon, 2012). This distrust has led to the non-optimisation of the available tools. Empirical findings reveal that most of the personnel in these agencies prefer to actualise their processes manually, or at best with the limited aid of Microsoft Office tools such as Excel and Word (Akharume, 2012). Thus the research problem investigated trust-enhancing mechanisms for IS tools in MPAs to improve efficient and effective use. The study conducted an in-depth critique of the role of trust in maximizing IS tools to improve efficiency and effectiveness within Nigerian Small and Medium Enterprises (SMEs). This was done through a literature review and questionnaire. The output of the research process is the proposition of a model for enhancing trust in IS tools within MPAs. The study proposed that the enhancement of trust in IS tools will lead to optimal use of these tools, thus leading to efficiency and effectiveness in the operations of Nigerian MPAs. The model was developed by following Hevner, March, Park and Ram’s (2004) Design Science research guidelines and validated through an expert review process. The outcome of the expert review was used to further refine the model and thereafter conclude the study. It is believed that the outcome of this research will empower MPAs to become competitive nationally, grow into global players in their industry and achieve efficiency with regards to how business is conducted. , Thesis (MCom) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-06
- Authors: Olutoyin, Olaitan https://orcid.org/0000-0002-5350-4136
- Date: 2014-06
- Subjects: Advertising media planning -- Nigeria , Information resources management -- Nigeria
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25592 , vital:64337
- Description: Media Planning Agencies (MPAs) are responsible for purchasing time and advertising space on behalf of organisations who desire to advertise or market their products and services (Kupoluyi, 2011). These agencies perform their tasks based on the evaluative factors of pricing, demographics, reach, psychographics and other factors relevant to the clients’ target market which are all enabled by technology. MPAs utilise industry specific Information Systems (IS) tools in their business processes. McKnight (2005) contends that trust in IS tools directly impacts on the willingness of a user to depend on such IS tools for accomplishing their goals. The research problem exists due to the fact that the current level of trust in these IS tools employed within MPAs in Nigeria is very low (Egbonwon, 2012). This distrust has led to the non-optimisation of the available tools. Empirical findings reveal that most of the personnel in these agencies prefer to actualise their processes manually, or at best with the limited aid of Microsoft Office tools such as Excel and Word (Akharume, 2012). Thus the research problem investigated trust-enhancing mechanisms for IS tools in MPAs to improve efficient and effective use. The study conducted an in-depth critique of the role of trust in maximizing IS tools to improve efficiency and effectiveness within Nigerian Small and Medium Enterprises (SMEs). This was done through a literature review and questionnaire. The output of the research process is the proposition of a model for enhancing trust in IS tools within MPAs. The study proposed that the enhancement of trust in IS tools will lead to optimal use of these tools, thus leading to efficiency and effectiveness in the operations of Nigerian MPAs. The model was developed by following Hevner, March, Park and Ram’s (2004) Design Science research guidelines and validated through an expert review process. The outcome of the expert review was used to further refine the model and thereafter conclude the study. It is believed that the outcome of this research will empower MPAs to become competitive nationally, grow into global players in their industry and achieve efficiency with regards to how business is conducted. , Thesis (MCom) -- Faculty of Management and Commerce, 2014
- Full Text:
- Date Issued: 2014-06
An investigation into identity formation of school- going adolescents : application of the neo- eriksonian paradigm in an urban African context
- Authors: Vasi, Shirlee
- Date: 2014-06
- Subjects: Adolescence , Identity (Psychology) in adolescence , Youth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26503 , vital:65482
- Description: The study drew on two approaches on identity formation, each postulating differing but complementary exploration components style and status in an effort to better understand the dimensions of identity formation as measured by the EOM EIS 2 and the ISI3. The sample of the study N 111 was socio/demographically diverse with respect to gender, age, race and language, with participants drawn from an urban high school setting in the Eastern Cape. Overall patterns of results revealed by Analysis of Variance ANOVA suggested that significant differences exist between adolescents with respect to gender and age in a South African context. No significant results were noted for the identity variables of race and language, with the identity variables of the EOM EIS 2 and the ISI3. Inter-correlations among the identity variables of the EOM EIS 2 and the ISI3 for the sample of school-going adolescents in this study were investigated. The findings provide evidence that the two instruments to a large extent carry a similar meaning theoretically within an African setting. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-06
- Authors: Vasi, Shirlee
- Date: 2014-06
- Subjects: Adolescence , Identity (Psychology) in adolescence , Youth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26503 , vital:65482
- Description: The study drew on two approaches on identity formation, each postulating differing but complementary exploration components style and status in an effort to better understand the dimensions of identity formation as measured by the EOM EIS 2 and the ISI3. The sample of the study N 111 was socio/demographically diverse with respect to gender, age, race and language, with participants drawn from an urban high school setting in the Eastern Cape. Overall patterns of results revealed by Analysis of Variance ANOVA suggested that significant differences exist between adolescents with respect to gender and age in a South African context. No significant results were noted for the identity variables of race and language, with the identity variables of the EOM EIS 2 and the ISI3. Inter-correlations among the identity variables of the EOM EIS 2 and the ISI3 for the sample of school-going adolescents in this study were investigated. The findings provide evidence that the two instruments to a large extent carry a similar meaning theoretically within an African setting. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-06
An investigation into the learning outcomes the selected life orientation educators teach in the intermediate and senior phase: implications for instructional supervision in two J.S.S. in Butterworth district
- Authors: Sele, Noxolo
- Date: 2014-06
- Subjects: Life skills -- Study and teaching
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25393 , vital:64235
- Description: This study seeks to investigate the Life Orientation (LO) Learning Outcomes the selected educators teach in the Intermediate and Senior Phase. It focuses on two Junior Secondary Schools (J.S.S.) in Butterworth Education District of the Eastern Cape Province. According to the Department of Education (2002) Life Orientation is mandatory for all learners in the Senior and Further Education and Training phases of Basic Education. It offers possibilities for equipping learners in South Africa with the knowledge, skills, attitudes and values to develop confidence within themselves and to become responsible citizens. In this inquiry, the study used qualitative research methods to explore how teachers and learners perceive the implementation of LO. The research on both teachers and learners has testified that the most looked part in LO is its importance on the developmental aspect of learners. The finding also draws strongly from what the literature has revealed, that Life Orientation curriculum expressly revolves around learners achieving outcomes, which are identified and assessed through the acquisition and demonstration of knowledge, skills, attitudes and value. The educators affirmed that LO was an important subject but was looked down by many teachers as less interesting and boring. The interviewees argued that LO contributes to best understanding of challenges facing our youth. One major recommendation was that grade teachers must draw insights from various teaching approaches and move beyond using one approach to deliver LO. Among other things, future research need to investigate what training needs do teachers and school heads need to arouse their interest and eagerness to facilitate teaching of LO? , Thesis (MEd) -- Faculty of Education, 2014
- Full Text:
- Date Issued: 2014-06
- Authors: Sele, Noxolo
- Date: 2014-06
- Subjects: Life skills -- Study and teaching
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25393 , vital:64235
- Description: This study seeks to investigate the Life Orientation (LO) Learning Outcomes the selected educators teach in the Intermediate and Senior Phase. It focuses on two Junior Secondary Schools (J.S.S.) in Butterworth Education District of the Eastern Cape Province. According to the Department of Education (2002) Life Orientation is mandatory for all learners in the Senior and Further Education and Training phases of Basic Education. It offers possibilities for equipping learners in South Africa with the knowledge, skills, attitudes and values to develop confidence within themselves and to become responsible citizens. In this inquiry, the study used qualitative research methods to explore how teachers and learners perceive the implementation of LO. The research on both teachers and learners has testified that the most looked part in LO is its importance on the developmental aspect of learners. The finding also draws strongly from what the literature has revealed, that Life Orientation curriculum expressly revolves around learners achieving outcomes, which are identified and assessed through the acquisition and demonstration of knowledge, skills, attitudes and value. The educators affirmed that LO was an important subject but was looked down by many teachers as less interesting and boring. The interviewees argued that LO contributes to best understanding of challenges facing our youth. One major recommendation was that grade teachers must draw insights from various teaching approaches and move beyond using one approach to deliver LO. Among other things, future research need to investigate what training needs do teachers and school heads need to arouse their interest and eagerness to facilitate teaching of LO? , Thesis (MEd) -- Faculty of Education, 2014
- Full Text:
- Date Issued: 2014-06
The challenges faced by orphans and vulnerable children in cluster foster homes in South Africa: the case of Ekhaya losizo in Grahamstown
- Authors: Nyamutinga, Dudzai
- Date: 2014-06
- Subjects: Foster home care -- South Africa , Social work with children -- South Africa , Orphans -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27402 , vital:67291
- Description: The aim of the study was to investigate the challenges faced by orphans and vulnerable children in cluster foster homes . The case of Ekhaya losizo Cluster home. The study intended to bring out the challenges that children who have been abandoned, neglected and orphaned face after they are found in need of care and protection and then are placed in institutional care. The first objective was to explore the different kind of challenges that orphans and vulnerable children encounter in a cluster foster home. The research study concluded that children face physical, emotional and psychological challenges. The research also examined the effects of these physical, social and emotional challenges on the wellbeing and welfare of these orphans and vulnerable children. According to the research study, most children in the cluster home faced a number of social, emotional and psychological wellbeing which affect normal development. The research focused on investigating the kind of support that is offered by community members to such orphans and vulnerable children. According to the findings, children are provided with emotional support, financial, social and educational. The study findings revealed that there is much support provided by the community. The last objective which is the fourth one is aimed at examining services that are offered by social service practitioners in the care of orphans and vulnerable children in cluster foster care. The study findings managed to document that social workers are very much instrumental in the welfare of children. This is because they are involved in identifying the child in need of care and protection as stipulated in the Children’s Act 38 of 2005, they do placements of children in cluster homes, monitoring and also identifying suitable caregivers who are able to provide proper nurturance to children. Psychologists are also instrumental in providing counselling to these children. They help those children that are traumatized, orphaned, abandoned and those that are having adaptation challenges as well as attachment challenges. The study utilized a qualitative method in order for the researcher to understand the challenges faced by orphans and vulnerable children. Purposive sampling which is non- probability was used with both in-depth interview as well as focus group discussion. The researcher purposely selected those people who are relevant in providing the relevant information for the research. The study utilized an in-depth interview guide as well as focus group discussion to gather information from respondents. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-06
- Authors: Nyamutinga, Dudzai
- Date: 2014-06
- Subjects: Foster home care -- South Africa , Social work with children -- South Africa , Orphans -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27402 , vital:67291
- Description: The aim of the study was to investigate the challenges faced by orphans and vulnerable children in cluster foster homes . The case of Ekhaya losizo Cluster home. The study intended to bring out the challenges that children who have been abandoned, neglected and orphaned face after they are found in need of care and protection and then are placed in institutional care. The first objective was to explore the different kind of challenges that orphans and vulnerable children encounter in a cluster foster home. The research study concluded that children face physical, emotional and psychological challenges. The research also examined the effects of these physical, social and emotional challenges on the wellbeing and welfare of these orphans and vulnerable children. According to the research study, most children in the cluster home faced a number of social, emotional and psychological wellbeing which affect normal development. The research focused on investigating the kind of support that is offered by community members to such orphans and vulnerable children. According to the findings, children are provided with emotional support, financial, social and educational. The study findings revealed that there is much support provided by the community. The last objective which is the fourth one is aimed at examining services that are offered by social service practitioners in the care of orphans and vulnerable children in cluster foster care. The study findings managed to document that social workers are very much instrumental in the welfare of children. This is because they are involved in identifying the child in need of care and protection as stipulated in the Children’s Act 38 of 2005, they do placements of children in cluster homes, monitoring and also identifying suitable caregivers who are able to provide proper nurturance to children. Psychologists are also instrumental in providing counselling to these children. They help those children that are traumatized, orphaned, abandoned and those that are having adaptation challenges as well as attachment challenges. The study utilized a qualitative method in order for the researcher to understand the challenges faced by orphans and vulnerable children. Purposive sampling which is non- probability was used with both in-depth interview as well as focus group discussion. The researcher purposely selected those people who are relevant in providing the relevant information for the research. The study utilized an in-depth interview guide as well as focus group discussion to gather information from respondents. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-06
Christian teaching and learning methodologies on the social life of children: a case study of the children's ministry of the church of Central Africa Presbyterian, Blantyre Synod, Malawi
- Authors: Mulele, Dennis Kanthunkako
- Date: 2014-05
- Subjects: Sociology, Biblical , Christian sociology , Religious aspects
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26470 , vital:65420
- Description: The escalation of antisocial behaviour among Christian children of the CCAP Blantyre Synod is a major threat for the future of the church community and the nation of Malawi, at large. This upsurge is a growing concern among Christian parents especially during this century. Through research interviews that were conducted with Christian adults, this dissertation seeks to establish the causes of antisocial behaviour among the Christian children of the CCAP Blantyre Synod. This dissertation also aims to find out whether the Christian teaching and learning methods used by Blantyre Synod are effective in addressing the escalation of antisocial behaviour. This study also analyses the challenges faced by Blantyre Synod and the effects on Christian children. A multi-method research strategy included a qualitative research approach and case study. Data were collected from multiple sources in 8 congregations of the CCAP, Blantyre Synod. Documentary evidence; guided interviews with participants in the CCAP Blantyre Synod and questionnaires were used. The interviews were conducted with Christian parents, church leaders and Sunday school teachers. Some of these interviews were recorded. This research explores the factors that influence the escalation of antisocial behaviour and the effects on Christian children. This research revealed that the escalation of antisocial behaviour arises because of a lack of parental modeling, use of technology and globalization, poverty, lack of understanding human rights, environment in which a Christian child lives, lack of well trained Sundays school teachers, westernization practices, peer grouping and political influences. The study concludes that the utilization of Christian teaching and learning methodologies on the social life of children in CCAP, Blantyre Synod will help in the fight against antisocial behaviour and close the gaps that facilitate the escalation of antisocial behaviour. Therefore the use of effective Christian teaching and learning methodologies provide an opportunity to tailor policies to be used in Christian teaching and learning of Christian children. , Thesis (MTh) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-05
- Authors: Mulele, Dennis Kanthunkako
- Date: 2014-05
- Subjects: Sociology, Biblical , Christian sociology , Religious aspects
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26470 , vital:65420
- Description: The escalation of antisocial behaviour among Christian children of the CCAP Blantyre Synod is a major threat for the future of the church community and the nation of Malawi, at large. This upsurge is a growing concern among Christian parents especially during this century. Through research interviews that were conducted with Christian adults, this dissertation seeks to establish the causes of antisocial behaviour among the Christian children of the CCAP Blantyre Synod. This dissertation also aims to find out whether the Christian teaching and learning methods used by Blantyre Synod are effective in addressing the escalation of antisocial behaviour. This study also analyses the challenges faced by Blantyre Synod and the effects on Christian children. A multi-method research strategy included a qualitative research approach and case study. Data were collected from multiple sources in 8 congregations of the CCAP, Blantyre Synod. Documentary evidence; guided interviews with participants in the CCAP Blantyre Synod and questionnaires were used. The interviews were conducted with Christian parents, church leaders and Sunday school teachers. Some of these interviews were recorded. This research explores the factors that influence the escalation of antisocial behaviour and the effects on Christian children. This research revealed that the escalation of antisocial behaviour arises because of a lack of parental modeling, use of technology and globalization, poverty, lack of understanding human rights, environment in which a Christian child lives, lack of well trained Sundays school teachers, westernization practices, peer grouping and political influences. The study concludes that the utilization of Christian teaching and learning methodologies on the social life of children in CCAP, Blantyre Synod will help in the fight against antisocial behaviour and close the gaps that facilitate the escalation of antisocial behaviour. Therefore the use of effective Christian teaching and learning methodologies provide an opportunity to tailor policies to be used in Christian teaching and learning of Christian children. , Thesis (MTh) -- Faculty of Social Sciences and Humanities, 2014
- Full Text:
- Date Issued: 2014-05
Development and assessment of gastroretentive sustained release captopril tablets
- Authors: Mukozhiwa, Samantha Yolanda
- Date: 2014-04-11
- Subjects: Captopril , Drug delivery systems , Drugs Controlled release , Cardiovascular system Diseases , Cardiovascular agents , Angiotensin converting enzyme Inhibitors
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/480301 , vital:78427
- Description: Cardiovascular diseases (CVD) are the leading cause of death worldwide and global projections predict that the number of deaths due to CVD will continue to increase over the next 17 years [1]. With the growing burden of CVD the design and development of formulations that optimise the delivery of existing therapeutic molecules may be an approach to improving the management of patients with CVD. Captopril (CPT) is an angiotensin converting enzyme (ACE) inhibitor used for the routine management of hypertension, cardiac failure and diabetic nephropathy [2-4]. However it has a relatively short half-life and typical therapeutic dosing regimens require multiple dosing [2]. CPT is a potential candidate for sustained oral drug delivery, however its poor stability profile and high water solubility present significant formulation challenges. CPT exhibits optimal stability at pH < 4 and is unstable in the alkaline environment of intestinal fluids [5]. A sustained release gastroretentive formulation is therefore proposed as an approach that may improve the in vivo stability of CPT in addition to slowly releasing the molecule at a desired rate that may also minimize the occurrence of drug-related adverse effects. A Capillary Zone Electrophoresis (CZE) method for the quantitation of CPT in pharmaceutical dosage forms was developed and optimised using a Central Composite Design (CCD) approach. The CZE method was found to have the necessary linearity, accuracy, precision, sensitivity and specificity for the analysis of CPT in pharmaceutical formulations. Preformulation studies were conducted as part of the preparative work required to manufacture high quality, stable gastroretentive sustained release CPT tablets. The experiments conducted were tailored for the development of CPT sustained release tablets using direct compression manufacture and included an analysis of particle size and shape, powder flow properties and CPT-excipient compatibility studies. The results revealed that there was no definite evidence of interactions between CPT and the excipients to be used to manufacture CPT tablets, and CPT formulations were developed using these excipients. A direct compression procedure was selected for tablet manufacture due to apparent simplicity and to avoid unnecessary exposure of CPT to the heat and moisture that would be encountered if a wet granulation manufacturing process was used. A numerical optimisation approach was used to predict a formulation composition that would produce minimal CPT release initially, a short floating lag time (FLT) and maximum CPT release after 12 hours of dissolution testing. The effect of increasing the agitation speed of USP Apparatus 2 on the release of CPT from the optimised formulation was also investigated. The results revealed that changing the speed of the paddle had only a relatively small impact on the in vitro release behaviour of CPT from the tablets. The optimised formulation was subjected to additional testing in an attempt to investigate the effects of pH and osmolarity on the swelling and erosion characteristics of the dosage form. It was important to evaluate the effects of pH and osmolarity from the perspective of the solubility and stability of CPT. The results generated from swelling studies revealed that the swelling characteristics of the proposed formulation were not significantly altered by a change in pH and osmolarity of the test medium and this is probably due to the non-ionic nature of HPMC. In addition, the results revealed that the solubility and/or stability of CPT in different dissolution media did not affect the water uptake and swelling of the tablet matrices. The results revealed the erosion rate constants were low and suggest that although polymer erosion does occur, the role of this phenomenon in the release of CPT may not be as significant as that of diffusion. The release kinetics of CPT from the tablets was established by fitting in vitro release data to several mathematical models. The in vitro release data were best described using the Korsmeyer-Peppas model and values of release exponent (n) suggest that the majority of the tablets exhibited an anomalous CPT transport mechanism. The short-term stability of the optimised formulation was established by undertaking stability studies at 25°/60% RH and 40°/75% RH. The results revealed that there was no significant change in appearance and physicochemical properties of the tablets over 60 days. In conclusion, gastroretentive sustained release CPT tablets with the potential for further development and optimisation have been successfully developed and assessed in these studies. A basis is thus provided for further development of this technology. , Thesis (MSc (Pharm)) -- Faculty of Pharmacy, 2014
- Full Text:
- Date Issued: 2014-04-11
- Authors: Mukozhiwa, Samantha Yolanda
- Date: 2014-04-11
- Subjects: Captopril , Drug delivery systems , Drugs Controlled release , Cardiovascular system Diseases , Cardiovascular agents , Angiotensin converting enzyme Inhibitors
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/480301 , vital:78427
- Description: Cardiovascular diseases (CVD) are the leading cause of death worldwide and global projections predict that the number of deaths due to CVD will continue to increase over the next 17 years [1]. With the growing burden of CVD the design and development of formulations that optimise the delivery of existing therapeutic molecules may be an approach to improving the management of patients with CVD. Captopril (CPT) is an angiotensin converting enzyme (ACE) inhibitor used for the routine management of hypertension, cardiac failure and diabetic nephropathy [2-4]. However it has a relatively short half-life and typical therapeutic dosing regimens require multiple dosing [2]. CPT is a potential candidate for sustained oral drug delivery, however its poor stability profile and high water solubility present significant formulation challenges. CPT exhibits optimal stability at pH < 4 and is unstable in the alkaline environment of intestinal fluids [5]. A sustained release gastroretentive formulation is therefore proposed as an approach that may improve the in vivo stability of CPT in addition to slowly releasing the molecule at a desired rate that may also minimize the occurrence of drug-related adverse effects. A Capillary Zone Electrophoresis (CZE) method for the quantitation of CPT in pharmaceutical dosage forms was developed and optimised using a Central Composite Design (CCD) approach. The CZE method was found to have the necessary linearity, accuracy, precision, sensitivity and specificity for the analysis of CPT in pharmaceutical formulations. Preformulation studies were conducted as part of the preparative work required to manufacture high quality, stable gastroretentive sustained release CPT tablets. The experiments conducted were tailored for the development of CPT sustained release tablets using direct compression manufacture and included an analysis of particle size and shape, powder flow properties and CPT-excipient compatibility studies. The results revealed that there was no definite evidence of interactions between CPT and the excipients to be used to manufacture CPT tablets, and CPT formulations were developed using these excipients. A direct compression procedure was selected for tablet manufacture due to apparent simplicity and to avoid unnecessary exposure of CPT to the heat and moisture that would be encountered if a wet granulation manufacturing process was used. A numerical optimisation approach was used to predict a formulation composition that would produce minimal CPT release initially, a short floating lag time (FLT) and maximum CPT release after 12 hours of dissolution testing. The effect of increasing the agitation speed of USP Apparatus 2 on the release of CPT from the optimised formulation was also investigated. The results revealed that changing the speed of the paddle had only a relatively small impact on the in vitro release behaviour of CPT from the tablets. The optimised formulation was subjected to additional testing in an attempt to investigate the effects of pH and osmolarity on the swelling and erosion characteristics of the dosage form. It was important to evaluate the effects of pH and osmolarity from the perspective of the solubility and stability of CPT. The results generated from swelling studies revealed that the swelling characteristics of the proposed formulation were not significantly altered by a change in pH and osmolarity of the test medium and this is probably due to the non-ionic nature of HPMC. In addition, the results revealed that the solubility and/or stability of CPT in different dissolution media did not affect the water uptake and swelling of the tablet matrices. The results revealed the erosion rate constants were low and suggest that although polymer erosion does occur, the role of this phenomenon in the release of CPT may not be as significant as that of diffusion. The release kinetics of CPT from the tablets was established by fitting in vitro release data to several mathematical models. The in vitro release data were best described using the Korsmeyer-Peppas model and values of release exponent (n) suggest that the majority of the tablets exhibited an anomalous CPT transport mechanism. The short-term stability of the optimised formulation was established by undertaking stability studies at 25°/60% RH and 40°/75% RH. The results revealed that there was no significant change in appearance and physicochemical properties of the tablets over 60 days. In conclusion, gastroretentive sustained release CPT tablets with the potential for further development and optimisation have been successfully developed and assessed in these studies. A basis is thus provided for further development of this technology. , Thesis (MSc (Pharm)) -- Faculty of Pharmacy, 2014
- Full Text:
- Date Issued: 2014-04-11
Sorption and emulsion liquid membranes in the remediation of metal processing waste water effluents using rhodium, trioctylamine and trihexylamine as a model
- Authors: Moyo, Francis
- Date: 2014-04-11
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/480289 , vital:78426
- Description: Two optimised ELMs were prepared with the diluent always being 30 % solution of toluene in kerosene. The first ELM contained 30.000 g/L (w/v) polyisobutylene, 10.870 g/L (m/v) of trioctyl amine and 51.001 g/L (m/v) of SPAN 80. The other optimised ELM was composed of 20.000 g/l of polyisobutylene, 10.268 g/l trioctyl amine and 50.024 g/l of SPAN 80. The stripping phase was always 2 M HNO3 and the mixing ratios of organic phase to stripping phase were 1:1 and 2:1. The t-test was used to test for the difference between the mean micro-droplet sizes had a p-value of 0.3018 at 5 % level of significance, i.e. there was no statistically the mean micro-droplet size of the optimised ELMs. Demulsification was performed with polyethylene glycol with molecular weight of 400 g/mol at 50 ± 1 °C for 24 hours. The volumetric ratio of treated side-stream and the ELM was 5:1 and 98.7 to 108 % of the initial Rh amount was recovered in the stripping phase after chemical demulsification. Major carryover of the diluent components into the stripping phase observed was from trioctyl amine, toluene and polyethylene glycol was observed. The final spent side-stream should not be discharged into the environment based on the acute Daphnia pulex toxicity test. For sorption studies, the specific surface area of kaolin was 18.21 0.8 m2 g-1 and loss on ignition was 0.0086 0.004 %. Removal efficiencies of trioctyl amine for 10 g of kaolin and particle size 65-100 μm and 101-400 μm were 18.1 % and 17.5 % respectively while sorption capacities were 0.92 g/g and 0.88 g/g respectively. The removal efficiency of 20 g of kaolin was 35.8 % and 33.3 % and sorption capacities were 0.93 g/g and 0.87 g/g respectively. For particle sizes 101-400 μm, the R2 values obtained for Freundlich and Langmuir were 0.9757 and 0.9819 respectively. The n and Kf for Freundlich isotherm were 1.086 and 2.622. Removal efficiency for trihexyl amine for particle size 101-400 μm and 65-100 μm was 28.5 % and 29.3 % respectively while sorption capacities were 0.73 g/g and 0.75 g/g respectively. The R2 values obtained for Freundlich and Langmuir for particle sizes 101-400 μm were 0.957 and 0.989 respectively. The n and Kf for Freundlich isotherm were 1.307 and 2.151 respectively. These results suggest that kaolinite could potentially be used in remediation of metal wastewaters containing hydrophobic extractants. , Thesis (MSc (Pharm)) -- Faculty of Pharmacy, 2014
- Full Text:
- Date Issued: 2014-04-11
- Authors: Moyo, Francis
- Date: 2014-04-11
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/480289 , vital:78426
- Description: Two optimised ELMs were prepared with the diluent always being 30 % solution of toluene in kerosene. The first ELM contained 30.000 g/L (w/v) polyisobutylene, 10.870 g/L (m/v) of trioctyl amine and 51.001 g/L (m/v) of SPAN 80. The other optimised ELM was composed of 20.000 g/l of polyisobutylene, 10.268 g/l trioctyl amine and 50.024 g/l of SPAN 80. The stripping phase was always 2 M HNO3 and the mixing ratios of organic phase to stripping phase were 1:1 and 2:1. The t-test was used to test for the difference between the mean micro-droplet sizes had a p-value of 0.3018 at 5 % level of significance, i.e. there was no statistically the mean micro-droplet size of the optimised ELMs. Demulsification was performed with polyethylene glycol with molecular weight of 400 g/mol at 50 ± 1 °C for 24 hours. The volumetric ratio of treated side-stream and the ELM was 5:1 and 98.7 to 108 % of the initial Rh amount was recovered in the stripping phase after chemical demulsification. Major carryover of the diluent components into the stripping phase observed was from trioctyl amine, toluene and polyethylene glycol was observed. The final spent side-stream should not be discharged into the environment based on the acute Daphnia pulex toxicity test. For sorption studies, the specific surface area of kaolin was 18.21 0.8 m2 g-1 and loss on ignition was 0.0086 0.004 %. Removal efficiencies of trioctyl amine for 10 g of kaolin and particle size 65-100 μm and 101-400 μm were 18.1 % and 17.5 % respectively while sorption capacities were 0.92 g/g and 0.88 g/g respectively. The removal efficiency of 20 g of kaolin was 35.8 % and 33.3 % and sorption capacities were 0.93 g/g and 0.87 g/g respectively. For particle sizes 101-400 μm, the R2 values obtained for Freundlich and Langmuir were 0.9757 and 0.9819 respectively. The n and Kf for Freundlich isotherm were 1.086 and 2.622. Removal efficiency for trihexyl amine for particle size 101-400 μm and 65-100 μm was 28.5 % and 29.3 % respectively while sorption capacities were 0.73 g/g and 0.75 g/g respectively. The R2 values obtained for Freundlich and Langmuir for particle sizes 101-400 μm were 0.957 and 0.989 respectively. The n and Kf for Freundlich isotherm were 1.307 and 2.151 respectively. These results suggest that kaolinite could potentially be used in remediation of metal wastewaters containing hydrophobic extractants. , Thesis (MSc (Pharm)) -- Faculty of Pharmacy, 2014
- Full Text:
- Date Issued: 2014-04-11