Vocabulary development in a grade 7 class using dictionary skills: an action research project
- Authors: Wells, Stephanie Alice
- Date: 2011
- Subjects: English language -- Study and teaching (Elementary) -- South Africa -- Eastern Cape Vocabulary -- Study and teaching (Elementary) -- South Africa -- Eastern Cape English language Dictionaries -- Polyglot -- Study and teaching (Elementary) -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1822 , http://hdl.handle.net/10962/d1003708
- Description: As I was involved as a voluntary, part-time teacher in a local, semi-rural school in the Eastern Cape, South Africa, I became increasingly aware of the learners' lack of English literacy. I therefore decided to do a practical research on vocabulary development, focusing on dictionary skills. In this thesis I describe how I implemented a vocabulary development programme as an Action Research project. My research group was a grade 7 class of English First Additional Language learners who had minimal exposure to English at school and in their communities. The class was a mixture of Afrikaans and isiXhosa home language speakers and the medium of instruction was Afrikaans. The school served a low-income community and was poorly resourced. As dictionary skills is a requirement of the national curriculum, I used 10 time-tabled lessons over a 5 week period to introduce the learners to dictionaries. My data sources were a journal detailing my reflections on each lesson; a video-recording of the lessons; small group interviews after each lesson which were audio-recorded; tasksheets on the work covered in class and questionnaires asking the learners for written responses to the lessons. The class teacher who filmed the lessons was also asked for feedback during and after the programme. My goals were to assess my teaching approach in these circumstances and to what extent the outcomes were positive for the learners. As I had come from a background of English Home Language teaching in good, well-resourced schools I found I had to question many of my assumptions. Although I was an experienced, qualified and confident teacher, I was continually having to reassess my teaching methods which were being challenged by very different classroom conditions. The outcomes of the research show why I was not able to achieve what I had thought I could in the time given.
- Full Text:
- Date Issued: 2011
- Authors: Wells, Stephanie Alice
- Date: 2011
- Subjects: English language -- Study and teaching (Elementary) -- South Africa -- Eastern Cape Vocabulary -- Study and teaching (Elementary) -- South Africa -- Eastern Cape English language Dictionaries -- Polyglot -- Study and teaching (Elementary) -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1822 , http://hdl.handle.net/10962/d1003708
- Description: As I was involved as a voluntary, part-time teacher in a local, semi-rural school in the Eastern Cape, South Africa, I became increasingly aware of the learners' lack of English literacy. I therefore decided to do a practical research on vocabulary development, focusing on dictionary skills. In this thesis I describe how I implemented a vocabulary development programme as an Action Research project. My research group was a grade 7 class of English First Additional Language learners who had minimal exposure to English at school and in their communities. The class was a mixture of Afrikaans and isiXhosa home language speakers and the medium of instruction was Afrikaans. The school served a low-income community and was poorly resourced. As dictionary skills is a requirement of the national curriculum, I used 10 time-tabled lessons over a 5 week period to introduce the learners to dictionaries. My data sources were a journal detailing my reflections on each lesson; a video-recording of the lessons; small group interviews after each lesson which were audio-recorded; tasksheets on the work covered in class and questionnaires asking the learners for written responses to the lessons. The class teacher who filmed the lessons was also asked for feedback during and after the programme. My goals were to assess my teaching approach in these circumstances and to what extent the outcomes were positive for the learners. As I had come from a background of English Home Language teaching in good, well-resourced schools I found I had to question many of my assumptions. Although I was an experienced, qualified and confident teacher, I was continually having to reassess my teaching methods which were being challenged by very different classroom conditions. The outcomes of the research show why I was not able to achieve what I had thought I could in the time given.
- Full Text:
- Date Issued: 2011
Medication errors in a private hospital closed intensive care unit: a retrospective analysis of process change
- Authors: Cruickshank, Deborah Claire
- Date: 2017
- Subjects: Medication errors
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10948/15501 , vital:28259
- Description: Healthcare professionals should be concerned about the safety of the patients in their care and the references to patient safety go back as far as the Hippocratic Oath. Study of literature however shows that medical errors are still of concern and the majority of medical errors are medication errors. The aim of the study was to determine whether process changes introduced reduced both the medication prescribing and medication administration errors in the intensive care unit, thereby contributing to an increase in overall patient safety in the intensive care unit. This study retrospectively analysed the effect of the process changes on medication prescribing and administration errors. The research objectives were to: Identify the number and type of prescribing medication errors prior to the implementation of process changes; Identify the number and type of administration medication errors prior to the implementation of process changes; Identify the process changes implemented; o Determine number and type of prescribing medication errors post the implementation of process changes; Determine number and type of administration medication errors post the implementation of process changes; Assess whether the process changes affected the number and type of prescribing medication errors; and o Assess whether the process changes affected the number and type of administration medication errors. In the Phase One (1 November 2013 to 31 January 2014) 534 patient prescription charts for 172 patients were examined. Medication error rates of 57.6% (n=99) of individual patients reviewed and 18.4% of total patient prescription charts reviewed were found. A total of 69 medication prescribing errors were found in Phase One. This equates to an error percentage of 12.9% per patient chart reviewed and 40.1% per patient reviewed. Thirty medication administration errors were identified in Phase One of the study representing 17.4% of patients reviewed and 5.6% of patient prescription charts reviewed. Medication administration errors included both errors of commission, incorrect doses administered, (n=19) and omission, dose missed, (n=11). Process changes were then introduced and the results of these changes analysed in Phase Two (1 April 2014 to 31 December 2014) show an overall reduction in total medication errors with relation to number of patients reviewed from 57.6% in Phase One to 40.5% in Phase Two. In relation to number of prescription charts reviewed the medication error rate in Phase One was 18.4% and in Phase Two 14.4%. Prescribing errors in relation to number of patients reviewed reduced from 40.1% in Phase One to 26.19% in Phase Two. Overall reductions in percentage of errors were seen in all categories of prescribing errors except duplication of therapy which showed a slight increase. Based on the number of patients reviewed a reduction of prescribing errors was seen in the following categories: transcription errors (13.3% to 7.6%), anticoagulant not prescribed when indicated (3.5% to 2.4%), medication safety (5.2% to 2.9%), dose errors (9.3% to 6.6%) and duration of therapy (6.3% to 3.6%). An increase in the duplication of therapy error rate was seen (2.3% to 3.1%). There was also a reduction in administration errors in relation to number of patients reviewed with a total number of errors of 17.4% in Phase One and 15.8% in Phase Two. The number of prescribing errors per medication chart in Phase Two showed a statistically significant reduction (p=.002). A statistically significant reduction was also seen when the number of errors per patient was reviewed (p=.008). The total number of medication administration errors per medication chart showed a significant reduction (p=.042) as did the number of administration errors per patient (p=.003). When combining the total number of medication errors (both prescriobing and administration) a significant reduction was seen for both the number of charts reviewed (p=.001) and the number of patients reviewed (p=.002). These results indicate that the desired goal of increasing patient safety with regard to medication errors has been achieved but ongoing study is required to ensure the sustainability of the process changes.
- Full Text:
- Date Issued: 2017
- Authors: Cruickshank, Deborah Claire
- Date: 2017
- Subjects: Medication errors
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10948/15501 , vital:28259
- Description: Healthcare professionals should be concerned about the safety of the patients in their care and the references to patient safety go back as far as the Hippocratic Oath. Study of literature however shows that medical errors are still of concern and the majority of medical errors are medication errors. The aim of the study was to determine whether process changes introduced reduced both the medication prescribing and medication administration errors in the intensive care unit, thereby contributing to an increase in overall patient safety in the intensive care unit. This study retrospectively analysed the effect of the process changes on medication prescribing and administration errors. The research objectives were to: Identify the number and type of prescribing medication errors prior to the implementation of process changes; Identify the number and type of administration medication errors prior to the implementation of process changes; Identify the process changes implemented; o Determine number and type of prescribing medication errors post the implementation of process changes; Determine number and type of administration medication errors post the implementation of process changes; Assess whether the process changes affected the number and type of prescribing medication errors; and o Assess whether the process changes affected the number and type of administration medication errors. In the Phase One (1 November 2013 to 31 January 2014) 534 patient prescription charts for 172 patients were examined. Medication error rates of 57.6% (n=99) of individual patients reviewed and 18.4% of total patient prescription charts reviewed were found. A total of 69 medication prescribing errors were found in Phase One. This equates to an error percentage of 12.9% per patient chart reviewed and 40.1% per patient reviewed. Thirty medication administration errors were identified in Phase One of the study representing 17.4% of patients reviewed and 5.6% of patient prescription charts reviewed. Medication administration errors included both errors of commission, incorrect doses administered, (n=19) and omission, dose missed, (n=11). Process changes were then introduced and the results of these changes analysed in Phase Two (1 April 2014 to 31 December 2014) show an overall reduction in total medication errors with relation to number of patients reviewed from 57.6% in Phase One to 40.5% in Phase Two. In relation to number of prescription charts reviewed the medication error rate in Phase One was 18.4% and in Phase Two 14.4%. Prescribing errors in relation to number of patients reviewed reduced from 40.1% in Phase One to 26.19% in Phase Two. Overall reductions in percentage of errors were seen in all categories of prescribing errors except duplication of therapy which showed a slight increase. Based on the number of patients reviewed a reduction of prescribing errors was seen in the following categories: transcription errors (13.3% to 7.6%), anticoagulant not prescribed when indicated (3.5% to 2.4%), medication safety (5.2% to 2.9%), dose errors (9.3% to 6.6%) and duration of therapy (6.3% to 3.6%). An increase in the duplication of therapy error rate was seen (2.3% to 3.1%). There was also a reduction in administration errors in relation to number of patients reviewed with a total number of errors of 17.4% in Phase One and 15.8% in Phase Two. The number of prescribing errors per medication chart in Phase Two showed a statistically significant reduction (p=.002). A statistically significant reduction was also seen when the number of errors per patient was reviewed (p=.008). The total number of medication administration errors per medication chart showed a significant reduction (p=.042) as did the number of administration errors per patient (p=.003). When combining the total number of medication errors (both prescriobing and administration) a significant reduction was seen for both the number of charts reviewed (p=.001) and the number of patients reviewed (p=.002). These results indicate that the desired goal of increasing patient safety with regard to medication errors has been achieved but ongoing study is required to ensure the sustainability of the process changes.
- Full Text:
- Date Issued: 2017
Trends in the fish assemblage structure of two South African transition-zone estuaries : can these trends be linked to climate change?
- Authors: Midgley, Craig
- Date: 2014
- Subjects: Estuarine fishes -- South Africa -- Climatic factors , Fish communities -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5368 , http://hdl.handle.net/10962/d1013173
- Description: Changes in the fish communities of the Breede and Mbashe estuaries were investigated in relation to the environmental variables that influence the fish assemblages in these systems. The Breede Estuary (34° 24’21.6”S, 20° 51’ 08.2”E) occurs within the warm-temperate/cool-temperate transition-zone, while the Mbashe Estuary (32o 14' 55.4"S, 28o 54' 03.7"E) falls within the subtropical/warm-temperate transition-zone along the South African coastline. The Breede Estuary was sampled (seine and gill nets) during summer (January-March) over a period of 10 years (2002-2012), while the Mbashe Estuary was sampled (seine net) during spring (October) over a period of three years (2010-2012). The proportion of tropical fish species was higher in the Mbashe Estuary compared to the Breede Estuary, while the Breede Estuary contained a higher proportion of temperate species than the Mbashe Estuary. Although the abundance of individual species in both estuaries varied, the ranking of species in the Breede Estuary was stable over the 10 year period. Multivariate analysis showed that the fish communities within each reach (upper, middle, lower) of the Breede Estuary remained similar, regardless of year. In contrast, species composition in the Mbashe Estuary differed significantly between years mainly due to differences in the river flow regime during the study period. Environmental variables responsible for structuring the fish assemblage in each estuary differed. Salinity significantly impacted the spatial fish assemblage structure of the Breede Estuary, with most of the species recorded being associated with the more saline lower reaches. The abundance of tropical species near their distributional limit in the Breede Estuary appeared to be impacted by sea surface temperature (SST) as peak total abundance of these species coincided with the warmest SST, while the lowest total abundance coincided with the coldest annual SST during the study period. The fish assemblage structure in the Mbashe Estuary was impacted by differing freshwater input prior to sampling, with flooding negatively impacting the mean total abundance, species composition and diversity in this system. The variables that influenced the fish assemblage structure of both transition-zone estuaries will be affected by climate change in the future. These variables will, in turn, determine the composition, abundance and diversity of species within these important estuarine systems. In order to measure these impacts with any degree of understanding, long-term studies on the abiotic and biotic (including the ichthyofauna) features of these estuaries are required to interpret climate change trends.
- Full Text:
- Date Issued: 2014
- Authors: Midgley, Craig
- Date: 2014
- Subjects: Estuarine fishes -- South Africa -- Climatic factors , Fish communities -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5368 , http://hdl.handle.net/10962/d1013173
- Description: Changes in the fish communities of the Breede and Mbashe estuaries were investigated in relation to the environmental variables that influence the fish assemblages in these systems. The Breede Estuary (34° 24’21.6”S, 20° 51’ 08.2”E) occurs within the warm-temperate/cool-temperate transition-zone, while the Mbashe Estuary (32o 14' 55.4"S, 28o 54' 03.7"E) falls within the subtropical/warm-temperate transition-zone along the South African coastline. The Breede Estuary was sampled (seine and gill nets) during summer (January-March) over a period of 10 years (2002-2012), while the Mbashe Estuary was sampled (seine net) during spring (October) over a period of three years (2010-2012). The proportion of tropical fish species was higher in the Mbashe Estuary compared to the Breede Estuary, while the Breede Estuary contained a higher proportion of temperate species than the Mbashe Estuary. Although the abundance of individual species in both estuaries varied, the ranking of species in the Breede Estuary was stable over the 10 year period. Multivariate analysis showed that the fish communities within each reach (upper, middle, lower) of the Breede Estuary remained similar, regardless of year. In contrast, species composition in the Mbashe Estuary differed significantly between years mainly due to differences in the river flow regime during the study period. Environmental variables responsible for structuring the fish assemblage in each estuary differed. Salinity significantly impacted the spatial fish assemblage structure of the Breede Estuary, with most of the species recorded being associated with the more saline lower reaches. The abundance of tropical species near their distributional limit in the Breede Estuary appeared to be impacted by sea surface temperature (SST) as peak total abundance of these species coincided with the warmest SST, while the lowest total abundance coincided with the coldest annual SST during the study period. The fish assemblage structure in the Mbashe Estuary was impacted by differing freshwater input prior to sampling, with flooding negatively impacting the mean total abundance, species composition and diversity in this system. The variables that influenced the fish assemblage structure of both transition-zone estuaries will be affected by climate change in the future. These variables will, in turn, determine the composition, abundance and diversity of species within these important estuarine systems. In order to measure these impacts with any degree of understanding, long-term studies on the abiotic and biotic (including the ichthyofauna) features of these estuaries are required to interpret climate change trends.
- Full Text:
- Date Issued: 2014
A case study of strategy implementation at a major Eastern Cape component supplier company in the automotive industry
- Authors: Koyana, Gwyneth Puseletso
- Date: 2009
- Subjects: Automobile industry and trade -- South Africa -- Eastern Cape Automobile industry workers -- South Africa -- Eastern Cape Industrial organization -- South Africa -- Eastern Cape -- Case studies Strategic planning -- South Africa -- Eastern Cape -- Case studies
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:735 , http://hdl.handle.net/10962/d1003855
- Description: A review of the literature on strategy implementation reveals that there is limited knowledge on how strategies should be implemented. This thesis focuses on a case study of strategy implementation at a major Eastern Cape component supplier company in the automotive industry, for purposes of establishing how the company implemented its strategies to become one of the best cost leaders in the manufacture of automotive pressed metal body components in South Africa. Data collated from the company is analysed and discussed with a resultant description of how the research participants understood the process of strategy implementation within the research company during the period January 2006 to December 2007. Interviews were undertaken within the levels of top management, middle management and the operational employees. Interpretations were made of the constructs made by the research participants in their understanding of how the research company implemented its strategy to become one of the best cost leaders in the manufacture of automotive pressed metal body components. It transpired from the findings of the research that the research company manufactured 70% of its products for one major client. During the manufacture of its products, the research company had to conform to the quality standards required by the main client. The main client was therefore offered the desired service at the best price. The strategy of the research company was to strive to be one of the best cost leaders in the manufacture of its products. It sought to do this by producing high quality products. Analysis is made of the strategic content, strategic context, operational processes and outcomes for the research company after the implementation of its strategy. It emerges in the case study that the strategy implementation factors cannot be considered separately in linear models but holistically, since one implementation factor may influence the others, resulting in a context and process based approach.
- Full Text:
- Date Issued: 2009
- Authors: Koyana, Gwyneth Puseletso
- Date: 2009
- Subjects: Automobile industry and trade -- South Africa -- Eastern Cape Automobile industry workers -- South Africa -- Eastern Cape Industrial organization -- South Africa -- Eastern Cape -- Case studies Strategic planning -- South Africa -- Eastern Cape -- Case studies
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:735 , http://hdl.handle.net/10962/d1003855
- Description: A review of the literature on strategy implementation reveals that there is limited knowledge on how strategies should be implemented. This thesis focuses on a case study of strategy implementation at a major Eastern Cape component supplier company in the automotive industry, for purposes of establishing how the company implemented its strategies to become one of the best cost leaders in the manufacture of automotive pressed metal body components in South Africa. Data collated from the company is analysed and discussed with a resultant description of how the research participants understood the process of strategy implementation within the research company during the period January 2006 to December 2007. Interviews were undertaken within the levels of top management, middle management and the operational employees. Interpretations were made of the constructs made by the research participants in their understanding of how the research company implemented its strategy to become one of the best cost leaders in the manufacture of automotive pressed metal body components. It transpired from the findings of the research that the research company manufactured 70% of its products for one major client. During the manufacture of its products, the research company had to conform to the quality standards required by the main client. The main client was therefore offered the desired service at the best price. The strategy of the research company was to strive to be one of the best cost leaders in the manufacture of its products. It sought to do this by producing high quality products. Analysis is made of the strategic content, strategic context, operational processes and outcomes for the research company after the implementation of its strategy. It emerges in the case study that the strategy implementation factors cannot be considered separately in linear models but holistically, since one implementation factor may influence the others, resulting in a context and process based approach.
- Full Text:
- Date Issued: 2009
The design of an internet sever facility in central, Port Elizabeth
- Authors: Binda, Mathew Ryan
- Date: 2016
- Subjects: City planning -- South Africa -- Port Elizabeth Urban renewal -- South Africa -- Port Elizabeth , Land use, Urban -- South Africa -- Port Elizabeth Central places -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/18762 , vital:28720
- Description: The concepts underlying this treatise develop from an observation of contemporary society’s inherent reliance on technology, its growing popularity as an information exchange mechanism and Africa’s lack of connection to it’s foundation, the internet. Human interaction with digital technology, supported by the internet, has created a new social culture which manifests meaning through visual and virtual cues. These make reference to place and are experienced as real and individual, relating to theories such as Heidegger’s imagined place (Heidegger 1971). In order to enhance Southern Africa’s connection with the global network of the internet, the design of an Internet Server Facility will bridge previously under-utilized international lines into the country at Port Elizabeth engaging with the existing infrastructural system. At this point of connection the infrastructural zone impedes the extension of a public environment. The design seeks to challenge the conception of the highway infrastructure in Port Elizabeth as objects that dehumanise space. It intends to emphasise structure and building as a set of processes or systems able to work together to enable not only the functional aspects of data infrastructure, but also respond to the urban fabric providing a multitude of spatial environments that engage with everyday human activity. Investigations of the previous impact of infrastructure which has been layered onto the edge of Port Elizabeth’s historical core, reveal the stripping of it’s place-making qualities over time, resulting in an urban wasteland. In considering the placement of an infrastructural system, an existing vacant space that forms part of the current infrastructure is more appropriate than using up other urban spaces. In its response, the system would need to respond to its urban environment in a way that infrastructure has previously failed to do in this area, due to its position adjacent to the CBD. For this reason the design is concerned with the urban rejuvenation of the scarred landscape and a design strategy for the development of a contemporary digital infrastructural system, capable of not only being a non-evasive to the urban environment but also a catalyst in the creation of physical and digital place-making in the public realm.
- Full Text:
- Date Issued: 2016
- Authors: Binda, Mathew Ryan
- Date: 2016
- Subjects: City planning -- South Africa -- Port Elizabeth Urban renewal -- South Africa -- Port Elizabeth , Land use, Urban -- South Africa -- Port Elizabeth Central places -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/18762 , vital:28720
- Description: The concepts underlying this treatise develop from an observation of contemporary society’s inherent reliance on technology, its growing popularity as an information exchange mechanism and Africa’s lack of connection to it’s foundation, the internet. Human interaction with digital technology, supported by the internet, has created a new social culture which manifests meaning through visual and virtual cues. These make reference to place and are experienced as real and individual, relating to theories such as Heidegger’s imagined place (Heidegger 1971). In order to enhance Southern Africa’s connection with the global network of the internet, the design of an Internet Server Facility will bridge previously under-utilized international lines into the country at Port Elizabeth engaging with the existing infrastructural system. At this point of connection the infrastructural zone impedes the extension of a public environment. The design seeks to challenge the conception of the highway infrastructure in Port Elizabeth as objects that dehumanise space. It intends to emphasise structure and building as a set of processes or systems able to work together to enable not only the functional aspects of data infrastructure, but also respond to the urban fabric providing a multitude of spatial environments that engage with everyday human activity. Investigations of the previous impact of infrastructure which has been layered onto the edge of Port Elizabeth’s historical core, reveal the stripping of it’s place-making qualities over time, resulting in an urban wasteland. In considering the placement of an infrastructural system, an existing vacant space that forms part of the current infrastructure is more appropriate than using up other urban spaces. In its response, the system would need to respond to its urban environment in a way that infrastructure has previously failed to do in this area, due to its position adjacent to the CBD. For this reason the design is concerned with the urban rejuvenation of the scarred landscape and a design strategy for the development of a contemporary digital infrastructural system, capable of not only being a non-evasive to the urban environment but also a catalyst in the creation of physical and digital place-making in the public realm.
- Full Text:
- Date Issued: 2016
The relationship between psychological contract, job satisfaction, organisation citizenship behaviour and turnover intention
- Authors: Pal, Ajay Kumar
- Date: 2019
- Subjects: Contracts -- Psychological aspects , Job satisfaction Organizational behavior Psychology, Industrial
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/43127 , vital:36740
- Description: Psychological contracts, which are made up of employees’ beliefs about the reciprocal obligations between them and their organisation, lie at the foundation of employment relationships (Rousseau, 1989; Schein, 1965). Yet many trends, such as restructuring, downsizing, increased reliance, pressure on cost and high competition, have a profound impact on employees and organisations, leading to an impact on psychological contracts. These trends increasingly make it unclear what the employee and organisation owe each other. The intention of this study is to the relationship between, psychological contract, job satisfaction, organisation citizenship behaviour, and turnover intention in the factory workers of a pharmaceutical manufacturing company based in the Durban area of South Africa. This research made use of quantitative research methods in order to conduct this study using a cross sectional design. A composite questionnaire was used to gather the necessary data for the study using a sample of 63 employees, which constitute 26% of work force working in the factory of a pharmaceutical company, represented by the different departments that operate in the factory setup. The quantitative findings indicate that all three of the measurement scales were reliable due to Cronbach’s alpha coefficient exceeding 0.60. Out of the three dependent variables, psychological contract is found to be highly correlated to job satisfaction. The findings of the study revealed that psychological contract has a positive medium correlation with job satisfaction, and that psychological contract has a medium negative correlation with turnover intention, while it has negligible correlation with organisation citizenship behaviour for the samples. The findings of this research study contribute to the literature available in terms of the construct of psychological contract, job satisfaction, organisation citizenship behaviour and turnover intention. Consequently, the results from this study provided the management of this company with important information on psychological contract and its relationship with work-related behaviours.
- Full Text:
- Date Issued: 2019
- Authors: Pal, Ajay Kumar
- Date: 2019
- Subjects: Contracts -- Psychological aspects , Job satisfaction Organizational behavior Psychology, Industrial
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/43127 , vital:36740
- Description: Psychological contracts, which are made up of employees’ beliefs about the reciprocal obligations between them and their organisation, lie at the foundation of employment relationships (Rousseau, 1989; Schein, 1965). Yet many trends, such as restructuring, downsizing, increased reliance, pressure on cost and high competition, have a profound impact on employees and organisations, leading to an impact on psychological contracts. These trends increasingly make it unclear what the employee and organisation owe each other. The intention of this study is to the relationship between, psychological contract, job satisfaction, organisation citizenship behaviour, and turnover intention in the factory workers of a pharmaceutical manufacturing company based in the Durban area of South Africa. This research made use of quantitative research methods in order to conduct this study using a cross sectional design. A composite questionnaire was used to gather the necessary data for the study using a sample of 63 employees, which constitute 26% of work force working in the factory of a pharmaceutical company, represented by the different departments that operate in the factory setup. The quantitative findings indicate that all three of the measurement scales were reliable due to Cronbach’s alpha coefficient exceeding 0.60. Out of the three dependent variables, psychological contract is found to be highly correlated to job satisfaction. The findings of the study revealed that psychological contract has a positive medium correlation with job satisfaction, and that psychological contract has a medium negative correlation with turnover intention, while it has negligible correlation with organisation citizenship behaviour for the samples. The findings of this research study contribute to the literature available in terms of the construct of psychological contract, job satisfaction, organisation citizenship behaviour and turnover intention. Consequently, the results from this study provided the management of this company with important information on psychological contract and its relationship with work-related behaviours.
- Full Text:
- Date Issued: 2019
The economics of state assistance to agriculture with special reference to future policy in South Africa
- Authors: Threlfell, R L
- Date: 1948
- Subjects: Agriculture and state -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1107 , http://hdl.handle.net/10962/d1013399
- Description: [From the Introduction] The argument by which it is shown that, under a system of open competition, prices are determined in a way which secures to consumers a maximum aggregate of satisfaction consonant with the relative security of the means of production is the familiar material of many treatises on economics, and does not need to be repeated here. In Economics (as distinct from Politics) this argument provided in a simple form the logical justification for the advocacy of laissez faire in State policy during the early 19th century even though "it was the actual success of private enterprise and the inefficiency and corruption of Government control that caused laissez faire to be an acceptable policy". No-one, of course, contended that pure competition did in fact characterize the economic relations of the time. Quite the reverse. It was argued that if the hindrances to competition were removed, society as a whole would reap the benefits indicated by the theory.
- Full Text:
- Date Issued: 1948
- Authors: Threlfell, R L
- Date: 1948
- Subjects: Agriculture and state -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1107 , http://hdl.handle.net/10962/d1013399
- Description: [From the Introduction] The argument by which it is shown that, under a system of open competition, prices are determined in a way which secures to consumers a maximum aggregate of satisfaction consonant with the relative security of the means of production is the familiar material of many treatises on economics, and does not need to be repeated here. In Economics (as distinct from Politics) this argument provided in a simple form the logical justification for the advocacy of laissez faire in State policy during the early 19th century even though "it was the actual success of private enterprise and the inefficiency and corruption of Government control that caused laissez faire to be an acceptable policy". No-one, of course, contended that pure competition did in fact characterize the economic relations of the time. Quite the reverse. It was argued that if the hindrances to competition were removed, society as a whole would reap the benefits indicated by the theory.
- Full Text:
- Date Issued: 1948
Use of the internet in newsgathering : a case study of The Post newspaper in Zambia
- Authors: Hamachila, Alphonsius
- Date: 2013-06-10
- Subjects: Post (Lusaka, Zambia) Electronic news gathering -- Zambia -- Case studies Journalism -- Data processing -- Zambia -- Case studies Reporters and reporting -- Zambia -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3518 , http://hdl.handle.net/10962/d1008075
- Description: The Internet and World Wide Web have become dominant newsgathering tools in a sholi period of time. While the body of research, particularly in the First World, has developed quickly along with the Web, many unanswered questions remain on how journalists in developing countries make use of the Internet for newsgathering purposes. This study combined social constructivist theory with the socio-organisational and cultural approaches to news production in order to critically investigate how journalists at The Post newspaper in Zambia relate to, and make use of, the Internet as a newsgathering resource, in the context of Third World conditions. The study critiqued technological detelminism perspectives on journalists' use of the new information technology. The technological determinism theory, which has largely been advanced by some scholars from the developed world, takes a celebratory approach to journalists' use of the Internet in the newsroom. Using qualitative semi-structured interviews and observations, the study established that while journalists at The Post acknowledged the lnternet's potential in news gathering, factors such as unreliable telecommunications infrastructure, poor Internet skills, lack of local content on the World Wide Web, and organisational and occupational demands inhibited the use of the Internet as a journalistic newsgathering resource. The study established further that online reporting is only a tool within the broader news gathering and production process; and in the case of The Post, it does not replace the traditional news gathering techniques used by journalists, particularly direct contacts with human sources. The respondents cited face-to-face interviews, a traditional means of newsgathering, as the main driving force in news gathering routines at the newspaper. However, although the respondents saw some mixed blessings in the Internet as a reporting tool, they also believed that the benefits outweighed the problems. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Authors: Hamachila, Alphonsius
- Date: 2013-06-10
- Subjects: Post (Lusaka, Zambia) Electronic news gathering -- Zambia -- Case studies Journalism -- Data processing -- Zambia -- Case studies Reporters and reporting -- Zambia -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3518 , http://hdl.handle.net/10962/d1008075
- Description: The Internet and World Wide Web have become dominant newsgathering tools in a sholi period of time. While the body of research, particularly in the First World, has developed quickly along with the Web, many unanswered questions remain on how journalists in developing countries make use of the Internet for newsgathering purposes. This study combined social constructivist theory with the socio-organisational and cultural approaches to news production in order to critically investigate how journalists at The Post newspaper in Zambia relate to, and make use of, the Internet as a newsgathering resource, in the context of Third World conditions. The study critiqued technological detelminism perspectives on journalists' use of the new information technology. The technological determinism theory, which has largely been advanced by some scholars from the developed world, takes a celebratory approach to journalists' use of the Internet in the newsroom. Using qualitative semi-structured interviews and observations, the study established that while journalists at The Post acknowledged the lnternet's potential in news gathering, factors such as unreliable telecommunications infrastructure, poor Internet skills, lack of local content on the World Wide Web, and organisational and occupational demands inhibited the use of the Internet as a journalistic newsgathering resource. The study established further that online reporting is only a tool within the broader news gathering and production process; and in the case of The Post, it does not replace the traditional news gathering techniques used by journalists, particularly direct contacts with human sources. The respondents cited face-to-face interviews, a traditional means of newsgathering, as the main driving force in news gathering routines at the newspaper. However, although the respondents saw some mixed blessings in the Internet as a reporting tool, they also believed that the benefits outweighed the problems. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
High-throughput modelling and structural investigation of cysteine protease complexes with protein inhibitors
- Authors: Kroon, Matthys Christoffel
- Date: 2013
- Subjects: Cysteine proteinases Cysteine proteinases -- Inhibitors Papain Cystatins Malaria -- Chemotherapy Homology (Biology) Protein-protein interactions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3885 , http://hdl.handle.net/10962/d1001619
- Description: The papain-like cysteine protease family (C1 proteases) is highly important because of its involvement in research and industrial applications and its role in various human diseases. Protein inhibitors are an important aspect of C1 protease biology and are relevant to its clinical, industrial and research importance. To study the interaction between the proteases and the inhibitors it is very useful to have accurate structural models of the protease-inhibitor complexes. To this end, a high-throughput pipeline for modelling complexes of papain-like cysteine proteases and protein inhibitors was implemented and tested (Tastan Bishop & Kroon, 2011). The pipeline utilizes a novel technique for obtaining modelling templates by using superpositioning to combine coordinates from separate experimental structures. To test the pipeline, models of complexes with known structures (test set) were modelled using many different templates and the resultant models evaluated to compare the quality of the different templates. It was found that use of the new technique to obtain templates did not introduce significant errors, while allowing closer homologs to be used for modelling - leading to more accurate models. The test set models were also used to evaluate certain steps of the modelling protocol. The effect of Rosetta energy minimization on model accuracy and the use of Rosetta energy and DOPE Z-score values to identify accurate models were investigated. Several complexes were then modelled using the best available templates according to criteria informed by the previous results. A website was built that allows a user to download any of the metrics or models produced in the study. This website is accessible at http://rubi.ru.ac.za/cpmdb
- Full Text:
- Date Issued: 2013
- Authors: Kroon, Matthys Christoffel
- Date: 2013
- Subjects: Cysteine proteinases Cysteine proteinases -- Inhibitors Papain Cystatins Malaria -- Chemotherapy Homology (Biology) Protein-protein interactions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3885 , http://hdl.handle.net/10962/d1001619
- Description: The papain-like cysteine protease family (C1 proteases) is highly important because of its involvement in research and industrial applications and its role in various human diseases. Protein inhibitors are an important aspect of C1 protease biology and are relevant to its clinical, industrial and research importance. To study the interaction between the proteases and the inhibitors it is very useful to have accurate structural models of the protease-inhibitor complexes. To this end, a high-throughput pipeline for modelling complexes of papain-like cysteine proteases and protein inhibitors was implemented and tested (Tastan Bishop & Kroon, 2011). The pipeline utilizes a novel technique for obtaining modelling templates by using superpositioning to combine coordinates from separate experimental structures. To test the pipeline, models of complexes with known structures (test set) were modelled using many different templates and the resultant models evaluated to compare the quality of the different templates. It was found that use of the new technique to obtain templates did not introduce significant errors, while allowing closer homologs to be used for modelling - leading to more accurate models. The test set models were also used to evaluate certain steps of the modelling protocol. The effect of Rosetta energy minimization on model accuracy and the use of Rosetta energy and DOPE Z-score values to identify accurate models were investigated. Several complexes were then modelled using the best available templates according to criteria informed by the previous results. A website was built that allows a user to download any of the metrics or models produced in the study. This website is accessible at http://rubi.ru.ac.za/cpmdb
- Full Text:
- Date Issued: 2013
The implementation of multigrade teaching in rural schools in the Keetmanshoop education region: leadership and management challenges
- Authors: Titus, David Petrus
- Date: 2004
- Subjects: Education -- Namibia Education, Rural -- Namibia Education and state -- Namibia Educational change -- Namibia School management and organization -- Namibia Rural schools -- Namibia Educational leadership -- Namibia School principals -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1566 , http://hdl.handle.net/10962/d1003448
- Description: Leadership has received much attention in both the business world and education. My thesis explores effective educational leadership through examining the management and leadership challenges that face principals in a multi-grade school. Schools in sparsely populated rural areas in Namibia have had to resort to multi-grade teaching to be able to be economically viable. Hard economic realities force people to move to bigger towns and cities. The constant demand for better schools, effective principals, qualified teachers and an improved service to the communities coupled with the demand for better working conditions and salaries for teachers drained the education budget even further. To keep in line with the four major policies of education namely equity, access, quality and democracy, the operation of smaller, rural multi-grade schools has become a necessity. The alternative – which is to close smaller schools and operate fewer, bigger schools at an affordable and reasonable cost - would deny rural communities access to schooling. This thesis is a case study of the leadership and management challenges of multigrade schooling in a single school. The goal was to understand how education managers and leaders perceived their role in making it possible for teachers and learners to cope with multi-grade teaching. I worked in the interpretive paradigm to be able to interpret the social and cultural context of a rural, multi-grade school in the Karas region. The methods included questionnaires, interviews and observation. One of the leadership models universally considered to be available to principals of multi-grade schools is instructional leadership. My study revealed that the concept was unknown to teaching staff, although there were indications that the model had been encountered. My findings also revealed that the communication between colleges of education and the regional education department staff was very limited. One of the major issues that arose was that principals were so occupied with teaching that important issues about training/evaluation and supervision of teachers, the ‘visibility’ of the principal, setting and implementation of the aims and goals of the school and regular communication with parents and community leaders were neglected. Probably the most significant finding was that head teachers are not trained in the management of a multi-grade school, hence most if not all of the head teachers run multi-grade schools like a single-graded school. The single most important problem was that the importance of multi-grade teaching had never been highlighted, particularly in light of new staffing norms, in spite of the fact that it was a phenomenon that was likely to be a permanent arrangement.
- Full Text:
- Date Issued: 2004
- Authors: Titus, David Petrus
- Date: 2004
- Subjects: Education -- Namibia Education, Rural -- Namibia Education and state -- Namibia Educational change -- Namibia School management and organization -- Namibia Rural schools -- Namibia Educational leadership -- Namibia School principals -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1566 , http://hdl.handle.net/10962/d1003448
- Description: Leadership has received much attention in both the business world and education. My thesis explores effective educational leadership through examining the management and leadership challenges that face principals in a multi-grade school. Schools in sparsely populated rural areas in Namibia have had to resort to multi-grade teaching to be able to be economically viable. Hard economic realities force people to move to bigger towns and cities. The constant demand for better schools, effective principals, qualified teachers and an improved service to the communities coupled with the demand for better working conditions and salaries for teachers drained the education budget even further. To keep in line with the four major policies of education namely equity, access, quality and democracy, the operation of smaller, rural multi-grade schools has become a necessity. The alternative – which is to close smaller schools and operate fewer, bigger schools at an affordable and reasonable cost - would deny rural communities access to schooling. This thesis is a case study of the leadership and management challenges of multigrade schooling in a single school. The goal was to understand how education managers and leaders perceived their role in making it possible for teachers and learners to cope with multi-grade teaching. I worked in the interpretive paradigm to be able to interpret the social and cultural context of a rural, multi-grade school in the Karas region. The methods included questionnaires, interviews and observation. One of the leadership models universally considered to be available to principals of multi-grade schools is instructional leadership. My study revealed that the concept was unknown to teaching staff, although there were indications that the model had been encountered. My findings also revealed that the communication between colleges of education and the regional education department staff was very limited. One of the major issues that arose was that principals were so occupied with teaching that important issues about training/evaluation and supervision of teachers, the ‘visibility’ of the principal, setting and implementation of the aims and goals of the school and regular communication with parents and community leaders were neglected. Probably the most significant finding was that head teachers are not trained in the management of a multi-grade school, hence most if not all of the head teachers run multi-grade schools like a single-graded school. The single most important problem was that the importance of multi-grade teaching had never been highlighted, particularly in light of new staffing norms, in spite of the fact that it was a phenomenon that was likely to be a permanent arrangement.
- Full Text:
- Date Issued: 2004
Namibian school principals' perceptions of their management needs
- Authors: Kapapero, Fanuel
- Date: 2008
- Subjects: School principals -- Self-rating of -- Namibia School principals -- Rating of -- Namibia School principals -- Management -- Namibia School principals -- Development -- Namibia School management and organization -- Namibia Educational leadership -- Namibia School supervision -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1674 , http://hdl.handle.net/10962/d1003557
- Description: The Namibian education system is at the crossroads as a result of the demands of the Education and Training Sector Improvement Programme (ETSIP), a programme initiated by the Government to address shortcomings in the education and training sector. ETSIP requires that school principals play a much more significant role to realize the goal of quality education, which is one of the major goals of education reform. In view of the ever-increasing responsibilities of the principals for ensuring the quality of education, the need for management development has become more apparent. Although management development for principals in the African context is a recent phenomenon, it has been a subject of extensive research over the years in many developed countries. The findings of these studies suggest that it has the potential to improve the quality of school leadership and ultimately lead to school improvement. In Namibia, literature suggests that little has been done to determine the needs of school principals with regards to their management development. This study therefore seeks to address that need. The study is situated in the interpretive research paradigm whose central purpose is to interpret and understand the phenomenon through the perceptions and experience of the participants. Data were collected by means of semi-structured interviews and document analysis. The findings generally suggest that principals perceive management development as vehicle to empowerment and capacity building. The findings further suggest that principals would prefer management programmes that are more experienced-based and offer opportunities for reflection. The findings also brought to light the aspect of monitoring and support as a critical element in the success of management development programmes. As far as the management development needs of school principals are concerned, the findings highlighted the following needs: the need to be trained on how to manage change which include the new curriculum and policies, training in information communication and technology and training in the management of human and financial resources which include instructional leadership and budgeting.
- Full Text:
- Date Issued: 2008
- Authors: Kapapero, Fanuel
- Date: 2008
- Subjects: School principals -- Self-rating of -- Namibia School principals -- Rating of -- Namibia School principals -- Management -- Namibia School principals -- Development -- Namibia School management and organization -- Namibia Educational leadership -- Namibia School supervision -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1674 , http://hdl.handle.net/10962/d1003557
- Description: The Namibian education system is at the crossroads as a result of the demands of the Education and Training Sector Improvement Programme (ETSIP), a programme initiated by the Government to address shortcomings in the education and training sector. ETSIP requires that school principals play a much more significant role to realize the goal of quality education, which is one of the major goals of education reform. In view of the ever-increasing responsibilities of the principals for ensuring the quality of education, the need for management development has become more apparent. Although management development for principals in the African context is a recent phenomenon, it has been a subject of extensive research over the years in many developed countries. The findings of these studies suggest that it has the potential to improve the quality of school leadership and ultimately lead to school improvement. In Namibia, literature suggests that little has been done to determine the needs of school principals with regards to their management development. This study therefore seeks to address that need. The study is situated in the interpretive research paradigm whose central purpose is to interpret and understand the phenomenon through the perceptions and experience of the participants. Data were collected by means of semi-structured interviews and document analysis. The findings generally suggest that principals perceive management development as vehicle to empowerment and capacity building. The findings further suggest that principals would prefer management programmes that are more experienced-based and offer opportunities for reflection. The findings also brought to light the aspect of monitoring and support as a critical element in the success of management development programmes. As far as the management development needs of school principals are concerned, the findings highlighted the following needs: the need to be trained on how to manage change which include the new curriculum and policies, training in information communication and technology and training in the management of human and financial resources which include instructional leadership and budgeting.
- Full Text:
- Date Issued: 2008
La femme dans l'oeuvre litteraire de Jean-Paul Sartre
- Authors: Seiler, Miriam Zimet
- Date: 1977
- Subjects: Sartre, Jean-Paul, 1905-1980 -- Criticism and interpretation
- Language: French
- Type: Thesis , Masters , MA
- Identifier: vital:3641 , http://hdl.handle.net/10962/d1014302
- Description: [From introduction]. Pourquoi examiner Ie rôle de la femme dans l' oeuvre de Sartre? Jean-Paul Sartre est l'un des philosophes les plus importants de ce siècle, un philosophe qui s'est consacré ấ un examen de l'homme et de ses rapports avec l'existence par la liberté conscienter; un penseur qui a montré son individualisme dans le domaine de la politique, n'acceptant que ce qu'il trouve défendable; un romancier et un dramaturge dont l'oeuvre a connu un succès mondial.
- Full Text:
- Date Issued: 1977
- Authors: Seiler, Miriam Zimet
- Date: 1977
- Subjects: Sartre, Jean-Paul, 1905-1980 -- Criticism and interpretation
- Language: French
- Type: Thesis , Masters , MA
- Identifier: vital:3641 , http://hdl.handle.net/10962/d1014302
- Description: [From introduction]. Pourquoi examiner Ie rôle de la femme dans l' oeuvre de Sartre? Jean-Paul Sartre est l'un des philosophes les plus importants de ce siècle, un philosophe qui s'est consacré ấ un examen de l'homme et de ses rapports avec l'existence par la liberté conscienter; un penseur qui a montré son individualisme dans le domaine de la politique, n'acceptant que ce qu'il trouve défendable; un romancier et un dramaturge dont l'oeuvre a connu un succès mondial.
- Full Text:
- Date Issued: 1977
Putting participatory communication into practice through community radio: a case study of how policies on programming and production are formulated and implemented at Radio Graaff-Reinet
- Kanyegirire, Andrew Steve Tumuhirwe
- Authors: Kanyegirire, Andrew Steve Tumuhirwe
- Date: 2003
- Subjects: Radio broadcasting -- South Africa -- Graaff-Reinet , Radio in community development , Radio stations -- South Africa -- Graaff-Reinet -- Management
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3442 , http://hdl.handle.net/10962/d1002896 , Radio broadcasting -- South Africa -- Graaff-Reinet , Radio in community development , Radio stations -- South Africa -- Graaff-Reinet -- Management
- Description: In the South African (SA) model of community radio, listeners are expected to be in charge of the management and programming operations of stations. This study tests the SA model against the actual conditions at an existing station. For this purpose, the study focuses on Radio Graaff-Reinet, a community radio station in the Eastern Cape. Emphasis is on examining the extent to which members of the station’s target community are involved in its operations. The study first assesses the nature of this involvement, keeping in mind the principles of, ‘community ownership’ and ‘participatory programming’ on which the SA model of community radio is based. It is argued that the station does provide a valuable ‘public sphere’ for its listeners. The potential of this sphere remains limited, however, due to the impact of ongoing power struggles around the ownership of the station. The lack of proper systems for managing these struggles has contributed to the fact that the station continues to be in a constant state of flux, with a high turnover of staff and regular changes in its policies and strategies. The study argues that, until such systems are put in place, the principles of community ownership will not be fully realizable. Areas in which the struggle over ownership plays itself out can be identified in the relationship between the station’s Board of Directors and its managing staff, between one particular station manager and her staff and between the station and its target community. These struggles often take place in context of a debate about the financial sustainability of the station versus its developmental aims. It is argued that this opposition needs to be questioned since, until the station is financially stable, it will remain vulnerable to interference by powerful individuals and groups in its attempts to establish such developmental aims. The study then goes on to identify key weaknesses in the station’s approach to community ownership and participation. In particular, it is pointed out that various stakeholders in the station have contradictory understandings of what is meant by ‘community’, using the term to include or exclude sections of the Graaff-Reinet society in very different ways. There are also very different understandings at play about the concept of community radio itself. These contradictions have an impact on the station’s ability to implement participatory programming. This situation is exacerbated by the fact that the station does not have a consistent forum in which shared decision-making can take place. Consequently, the station also remains unable to draw effectively on its own volunteer staff and on its community as resources for programming content. Finally, the study explores the broader significance of the weaknesses that exist in the case of Graaff-Reinet, arguing that these are problems that repeat themselves throughout the South African community radio sector. Possible strategies for addressing these problems are suggested, including approaches to monitoring and research, training, organizational development and advocacy.
- Full Text:
- Date Issued: 2003
- Authors: Kanyegirire, Andrew Steve Tumuhirwe
- Date: 2003
- Subjects: Radio broadcasting -- South Africa -- Graaff-Reinet , Radio in community development , Radio stations -- South Africa -- Graaff-Reinet -- Management
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3442 , http://hdl.handle.net/10962/d1002896 , Radio broadcasting -- South Africa -- Graaff-Reinet , Radio in community development , Radio stations -- South Africa -- Graaff-Reinet -- Management
- Description: In the South African (SA) model of community radio, listeners are expected to be in charge of the management and programming operations of stations. This study tests the SA model against the actual conditions at an existing station. For this purpose, the study focuses on Radio Graaff-Reinet, a community radio station in the Eastern Cape. Emphasis is on examining the extent to which members of the station’s target community are involved in its operations. The study first assesses the nature of this involvement, keeping in mind the principles of, ‘community ownership’ and ‘participatory programming’ on which the SA model of community radio is based. It is argued that the station does provide a valuable ‘public sphere’ for its listeners. The potential of this sphere remains limited, however, due to the impact of ongoing power struggles around the ownership of the station. The lack of proper systems for managing these struggles has contributed to the fact that the station continues to be in a constant state of flux, with a high turnover of staff and regular changes in its policies and strategies. The study argues that, until such systems are put in place, the principles of community ownership will not be fully realizable. Areas in which the struggle over ownership plays itself out can be identified in the relationship between the station’s Board of Directors and its managing staff, between one particular station manager and her staff and between the station and its target community. These struggles often take place in context of a debate about the financial sustainability of the station versus its developmental aims. It is argued that this opposition needs to be questioned since, until the station is financially stable, it will remain vulnerable to interference by powerful individuals and groups in its attempts to establish such developmental aims. The study then goes on to identify key weaknesses in the station’s approach to community ownership and participation. In particular, it is pointed out that various stakeholders in the station have contradictory understandings of what is meant by ‘community’, using the term to include or exclude sections of the Graaff-Reinet society in very different ways. There are also very different understandings at play about the concept of community radio itself. These contradictions have an impact on the station’s ability to implement participatory programming. This situation is exacerbated by the fact that the station does not have a consistent forum in which shared decision-making can take place. Consequently, the station also remains unable to draw effectively on its own volunteer staff and on its community as resources for programming content. Finally, the study explores the broader significance of the weaknesses that exist in the case of Graaff-Reinet, arguing that these are problems that repeat themselves throughout the South African community radio sector. Possible strategies for addressing these problems are suggested, including approaches to monitoring and research, training, organizational development and advocacy.
- Full Text:
- Date Issued: 2003
Movement patterns of Cape stumpnose, Rhabdosargus holubi (Sparidae), in the Kowie Estuary, South Africa
- Authors: Grant, Gareth Neil
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/982 , vital:20010
- Description: Rhabdosargus holubi is an ubiquitous estuary-dependent fishery species endemic to southern Africa. Although aspects of its recruitment dynamics from sea to estuary have received considerable research attention, little is known about its movement behaviour within estuarine systems. Fishery surveys have also revealed that R. holubi is a dominant species in catches within several temperate estuaries in South Africa. Therefore, investigating movement behaviour is fundamental to understanding the ecology of this species and providing a means for implementing effective fisheries management strategies. This study made use of passive acoustic telemetry to quantify the movement patterns of juvenile R. holubi in the Kowie Estuary, in the Eastern Cape Province of South Africa. Previous studies have revealed that surgically implanted transmitters may have adverse effects on the physiology and behaviour of tagged fish. Therefore, due to the small size of juvenile R. holubi, an a priori transmitter-effect experiment was undertaken. This experiment revealed that juvenile R. holubi (146-217 mm fork length) were not adversely affected by the surgical implantation of acoustic transmitters (7 mm Ø, 1.6 g out of water) and hence acoustic telemetry was well suited to monitoring the movements of this species. A 4-month telemetry study evaluated the movement patterns of 21 juveniles (140-190 mm fork length) tagged in three equal batches along the length of the estuary. Specific aspects of their movement included space use patterns, habitat connectivity, and the influences of geophysical cycles and environmental variables. Tagged fish exhibited high residency, which varied between each release site area. The mean length of estuary used was greater for the upper batch (15.65 ± 6.49 km) than the middle and lower batches (7.36 ± 3.68 and 2.67 ± 2 km, respectively). In terms of habitat connectivity, once the tagged fish left the estuary, they generally did not return. Tagged R. holubi spent the majority (83%) of their monitoring periods within the estuarine environment, with the sea (16%) and riverine (1%) environments being utilised to a lesser extent. Diel and tidal cycles influenced the movement patterns of juvenile R. holubi. However, the high levels of residency meant that fine-scale movements were difficult to detect due to the acoustic receiver deployment configuration (i.e. receivers moored one kilometer apart). The influence of environmental variables on the movement of individuals, modelled with general linear mixed models (GLMMs), revealed that the effects of river inflow and water temperature were greatest. Increased river inflow caused individuals to use larger portions of the estuary. Increased water temperature, particularly river temperature, caused individuals to shift their distributions downstream (towards the mouth of the estuary). This study highlighted the importance of estuarine nursery habitats to R. holubi, suggesting that a loss or reduction of healthy estuarine habitats may lead to significant declines in the abundance of this species. Furthermore, extreme resident behaviour suggests that no-take area closures (estuarine protected areas) would be an effective management strategy for this important fishery species.
- Full Text:
- Date Issued: 2016
- Authors: Grant, Gareth Neil
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/982 , vital:20010
- Description: Rhabdosargus holubi is an ubiquitous estuary-dependent fishery species endemic to southern Africa. Although aspects of its recruitment dynamics from sea to estuary have received considerable research attention, little is known about its movement behaviour within estuarine systems. Fishery surveys have also revealed that R. holubi is a dominant species in catches within several temperate estuaries in South Africa. Therefore, investigating movement behaviour is fundamental to understanding the ecology of this species and providing a means for implementing effective fisheries management strategies. This study made use of passive acoustic telemetry to quantify the movement patterns of juvenile R. holubi in the Kowie Estuary, in the Eastern Cape Province of South Africa. Previous studies have revealed that surgically implanted transmitters may have adverse effects on the physiology and behaviour of tagged fish. Therefore, due to the small size of juvenile R. holubi, an a priori transmitter-effect experiment was undertaken. This experiment revealed that juvenile R. holubi (146-217 mm fork length) were not adversely affected by the surgical implantation of acoustic transmitters (7 mm Ø, 1.6 g out of water) and hence acoustic telemetry was well suited to monitoring the movements of this species. A 4-month telemetry study evaluated the movement patterns of 21 juveniles (140-190 mm fork length) tagged in three equal batches along the length of the estuary. Specific aspects of their movement included space use patterns, habitat connectivity, and the influences of geophysical cycles and environmental variables. Tagged fish exhibited high residency, which varied between each release site area. The mean length of estuary used was greater for the upper batch (15.65 ± 6.49 km) than the middle and lower batches (7.36 ± 3.68 and 2.67 ± 2 km, respectively). In terms of habitat connectivity, once the tagged fish left the estuary, they generally did not return. Tagged R. holubi spent the majority (83%) of their monitoring periods within the estuarine environment, with the sea (16%) and riverine (1%) environments being utilised to a lesser extent. Diel and tidal cycles influenced the movement patterns of juvenile R. holubi. However, the high levels of residency meant that fine-scale movements were difficult to detect due to the acoustic receiver deployment configuration (i.e. receivers moored one kilometer apart). The influence of environmental variables on the movement of individuals, modelled with general linear mixed models (GLMMs), revealed that the effects of river inflow and water temperature were greatest. Increased river inflow caused individuals to use larger portions of the estuary. Increased water temperature, particularly river temperature, caused individuals to shift their distributions downstream (towards the mouth of the estuary). This study highlighted the importance of estuarine nursery habitats to R. holubi, suggesting that a loss or reduction of healthy estuarine habitats may lead to significant declines in the abundance of this species. Furthermore, extreme resident behaviour suggests that no-take area closures (estuarine protected areas) would be an effective management strategy for this important fishery species.
- Full Text:
- Date Issued: 2016
A critical assessment of the Eastern Cape Provincial Government intervention in dysfunctional municipalities : a case study of Sundays River Valley Local Municipality
- Authors: Njikelana, Vuyo Mxolisi
- Date: 2016
- Subjects: Intergovernmental cooperation -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/2403 , vital:27808
- Description: The research seeks to assess the effectiveness of the provincial intervention in accordance with section 139 of the Constitution, 1996 in dysfunctional municipalities in the Eastern Cape as a viable instrument vis-à-vis the implementation of the continuous support in terms of section 154 of the same Constitution. Both sections are legislative obligations on the part of the national and provincial spheres of government. The two sections are legal instruments of monitoring and support and their implementation in municipalities by the then Department of Local Government and Traditional Affairs (now known as Department of Cooperative Governance and Traditional Affairs) in the Eastern Cape is the focus of the study. However, the two instruments are not achieving their objectives as more municipalities continue remaining dysfunctional despite provincial interventions. The government set out a broad vision of developmental local government. This is essentially a vision that calls on municipalities to find means of confronting the legacy of underdevelopment and poverty in their local areas. Whereas section 154 seeks to ensure support and strengthen capacity of municipalities, section 139 presupposes intervention in areas where a municipality has failed to perform. The latter section is usually invoked when everything else has failed by way of the continuous support provided by section 154. The study examined critical aspects on the implementation of the two instruments by DLGTA, particularly at Sundays River Valley Local Municipality. It looked at the challenges that necessitate the provincial government to intervene in dysfunctional municipalities as well as at implementation challenges. It also looked at the impact of the provincial intervention and checked on the section that is likely to make an impact between the two. In so doing, the municipal functionaries; Mayor/Speaker, Section 56 Managers, departmental officials of DLGTA and stakeholders representing citizens of Sundays River Valley were interviewed. The results of the study reflect challenges in the implementation of the two instruments by the DLGTA and it would be advisable for the DLGTA to consider the findings and recommendations in an attempt to contribute in overcoming the section 139 challenges.
- Full Text:
- Date Issued: 2016
- Authors: Njikelana, Vuyo Mxolisi
- Date: 2016
- Subjects: Intergovernmental cooperation -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/2403 , vital:27808
- Description: The research seeks to assess the effectiveness of the provincial intervention in accordance with section 139 of the Constitution, 1996 in dysfunctional municipalities in the Eastern Cape as a viable instrument vis-à-vis the implementation of the continuous support in terms of section 154 of the same Constitution. Both sections are legislative obligations on the part of the national and provincial spheres of government. The two sections are legal instruments of monitoring and support and their implementation in municipalities by the then Department of Local Government and Traditional Affairs (now known as Department of Cooperative Governance and Traditional Affairs) in the Eastern Cape is the focus of the study. However, the two instruments are not achieving their objectives as more municipalities continue remaining dysfunctional despite provincial interventions. The government set out a broad vision of developmental local government. This is essentially a vision that calls on municipalities to find means of confronting the legacy of underdevelopment and poverty in their local areas. Whereas section 154 seeks to ensure support and strengthen capacity of municipalities, section 139 presupposes intervention in areas where a municipality has failed to perform. The latter section is usually invoked when everything else has failed by way of the continuous support provided by section 154. The study examined critical aspects on the implementation of the two instruments by DLGTA, particularly at Sundays River Valley Local Municipality. It looked at the challenges that necessitate the provincial government to intervene in dysfunctional municipalities as well as at implementation challenges. It also looked at the impact of the provincial intervention and checked on the section that is likely to make an impact between the two. In so doing, the municipal functionaries; Mayor/Speaker, Section 56 Managers, departmental officials of DLGTA and stakeholders representing citizens of Sundays River Valley were interviewed. The results of the study reflect challenges in the implementation of the two instruments by the DLGTA and it would be advisable for the DLGTA to consider the findings and recommendations in an attempt to contribute in overcoming the section 139 challenges.
- Full Text:
- Date Issued: 2016
Meat and its meanings: representations of meat-eating in selected works of South African literature
- Authors: Coetzer, Theo
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3860 , vital:20550
- Description: This thesis is situated within the burgeoning field of literary animal studies. Its aim is to analyse critically the way in which animals-as-meat are represented in South African literature. While meat pervades our lives and literature, there exists very little scholarship that considers literary depictions of meat. The thesis suggests that literary texts can offer useful reflections of the cultural environments in which they are immersed and, furthermore, can encourage what J. M. Coetzee calls the ‘sympathetic imagination’ in relation to animals. The dissertation offers close readings of three primary texts, while also drawing on a broader range of local fiction. Chapter 1 discusses Eben Venter’s Trencherman, with a specific focus on Venter’s use of the plaasroman and literary dystopia. Both genres are important to the novel’s ubiquitous depictions of meat, serving to illustrate some of the destructive, and irreversible, excesses associated with traditional Afrikaner culture in South Africa. Meat consumption is not only depicted as being among these harmful excesses, but also comes to represent them collectively. Chapter 2 offers a reading of Zakes Mda’s The Madonna of Excelsior, paying particular attention to its representation of the intersection between the objectification of women’s bodies and the transformation of animals into meat. In my approach to this text, I make use of Carol J. Adams’ notion of the ‘absent referent’. I suggest that while Mda ostensibly considers the subjugation of both women and animals, the novel does not ultimately demonstrate concern for animals in their own right. The final chapter considers the representation of suffering in Damon Galgut’s The Beautiful Screaming of Pigs. I argue that Galgut’s text is alone among the three primary texts in its attention to the animal suffering inextricably linked to meat production. The novel depicts this suffering as being comparable to human suffering, while simultaneously demonstrating humans’ indifference to their animal fellows. The dissertation concludes that while meat is infused with a range of meanings in South African literature, the most obvious and intrinsic one – the fact of animal death and animal suffering – is the one most often ignored.
- Full Text:
- Date Issued: 2016
- Authors: Coetzer, Theo
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3860 , vital:20550
- Description: This thesis is situated within the burgeoning field of literary animal studies. Its aim is to analyse critically the way in which animals-as-meat are represented in South African literature. While meat pervades our lives and literature, there exists very little scholarship that considers literary depictions of meat. The thesis suggests that literary texts can offer useful reflections of the cultural environments in which they are immersed and, furthermore, can encourage what J. M. Coetzee calls the ‘sympathetic imagination’ in relation to animals. The dissertation offers close readings of three primary texts, while also drawing on a broader range of local fiction. Chapter 1 discusses Eben Venter’s Trencherman, with a specific focus on Venter’s use of the plaasroman and literary dystopia. Both genres are important to the novel’s ubiquitous depictions of meat, serving to illustrate some of the destructive, and irreversible, excesses associated with traditional Afrikaner culture in South Africa. Meat consumption is not only depicted as being among these harmful excesses, but also comes to represent them collectively. Chapter 2 offers a reading of Zakes Mda’s The Madonna of Excelsior, paying particular attention to its representation of the intersection between the objectification of women’s bodies and the transformation of animals into meat. In my approach to this text, I make use of Carol J. Adams’ notion of the ‘absent referent’. I suggest that while Mda ostensibly considers the subjugation of both women and animals, the novel does not ultimately demonstrate concern for animals in their own right. The final chapter considers the representation of suffering in Damon Galgut’s The Beautiful Screaming of Pigs. I argue that Galgut’s text is alone among the three primary texts in its attention to the animal suffering inextricably linked to meat production. The novel depicts this suffering as being comparable to human suffering, while simultaneously demonstrating humans’ indifference to their animal fellows. The dissertation concludes that while meat is infused with a range of meanings in South African literature, the most obvious and intrinsic one – the fact of animal death and animal suffering – is the one most often ignored.
- Full Text:
- Date Issued: 2016
Past trauma, anxious future a case-based evaluation of the Ehlers and Clark model for PTSD applied in Africa
- Authors: Van der Linde, Francois
- Date: 2007
- Subjects: Cognitive therapy Post-traumatic stress disorder -- Africa Rape trauma syndrome -- Treatment -- Africa Rape victims -- Africa Anxiety -- Treatment Depression, Mental -- Treatment Post-traumatic stress disorder -- Patients Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3075 , http://hdl.handle.net/10962/d1002584
- Description: This research report documents the therapeutic intervention undertaken with a 23-year-old Swazi rape victim. The format of this research report takes the form of a case study that follows the principles proposed by Fishman (2005). Its aim is to document the treatment process of an individual of African decent in order to establish whether the treatment model can be effective in clinical settings and in contexts and cultural settings different from that in which it was developed. The Ehlers and Clark (2000) cognitive therapy model for post-traumatic stress disorder (PTSD) was utilised to assess, conceptualise, and treat the case. The client entered therapy three years after being raped for a third time. The case formulation identified factors maintaining the disorder as well as how other traumatic and abusive events earlier in her life influenced her response to the rapes. Data consisted off audio-tape recordings and detailed written synopses of each assessment and therapy session, psychometric measurement instruments and self-report scales completed throughout the intervention, material written by the client, and a research interview conducted by an independent party. She was treated for PTSD and comorbid depression over a period of five months in accordance with the principles described by Ehlers and Clark and a narrative of the treatment process was written. The case narrative in conjunction with quantitative data suggested that this model assisted the client in initiating a healing process. As such the model was found to be both effective and transportable to an African context. Various points of discussion are highlighted, including the challenges of working with PTSD and comorbid major depression, the client-therapist relationship, and that a client and therapist from different cultures, backgrounds, and with different home languages can work together effectively using the Ehlers and Clark model.
- Full Text:
- Date Issued: 2007
- Authors: Van der Linde, Francois
- Date: 2007
- Subjects: Cognitive therapy Post-traumatic stress disorder -- Africa Rape trauma syndrome -- Treatment -- Africa Rape victims -- Africa Anxiety -- Treatment Depression, Mental -- Treatment Post-traumatic stress disorder -- Patients Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3075 , http://hdl.handle.net/10962/d1002584
- Description: This research report documents the therapeutic intervention undertaken with a 23-year-old Swazi rape victim. The format of this research report takes the form of a case study that follows the principles proposed by Fishman (2005). Its aim is to document the treatment process of an individual of African decent in order to establish whether the treatment model can be effective in clinical settings and in contexts and cultural settings different from that in which it was developed. The Ehlers and Clark (2000) cognitive therapy model for post-traumatic stress disorder (PTSD) was utilised to assess, conceptualise, and treat the case. The client entered therapy three years after being raped for a third time. The case formulation identified factors maintaining the disorder as well as how other traumatic and abusive events earlier in her life influenced her response to the rapes. Data consisted off audio-tape recordings and detailed written synopses of each assessment and therapy session, psychometric measurement instruments and self-report scales completed throughout the intervention, material written by the client, and a research interview conducted by an independent party. She was treated for PTSD and comorbid depression over a period of five months in accordance with the principles described by Ehlers and Clark and a narrative of the treatment process was written. The case narrative in conjunction with quantitative data suggested that this model assisted the client in initiating a healing process. As such the model was found to be both effective and transportable to an African context. Various points of discussion are highlighted, including the challenges of working with PTSD and comorbid major depression, the client-therapist relationship, and that a client and therapist from different cultures, backgrounds, and with different home languages can work together effectively using the Ehlers and Clark model.
- Full Text:
- Date Issued: 2007
Multi linear regression-based modeling and performance monitoring of flat plate solar collector outlet temperature in Alice, South Africa
- Authors: Ndlovu, Nothando
- Date: 2015
- Subjects: Solar collectors Solar water heaters
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/12676 , vital:39298
- Description: In a period of rapidly increasing energy demand, the exploitation of abundantly available solar energy is imperative. Temperate climates like South Africa show good potential for utilizing solar-driven technologies such as solar water heaters. These systems offer an attractive alternative over conventional water geysers as a means to supply hot water for residential use. In South Africa, the solar water heater industry is growing rapidly as the government offers incentives manufactures and consumers. This necessitates the determination of performance of these systems through experimental analysis as well as performance prediction. This study evaluated the summer and winter performance of a flat plate, thermosyphon solar water heater under climatic conditions encountered in Alice, South Africa by considering the collector outlet temperature. The performance and weather data obtained were used to develop a multi linear regression (MLR) model for each season. MLR is a simple and easily applicable modelling approach which uses a set of input and output data to determine the model coefficients of a linear relation of two or more variables. The collector outlet temperature was correlated with solar radiation, ambient temperature, relative humidity, and collector inlet temperature since these variables have a direct impact on the collector temperature rise. Results from the performance showed that the collector performs well, attaining temperatures up to 87.2oC during the summer season and 70oC during winter season. The summer and winter percentage mean absolute error for the whole monitoring period were 4.07 percent and 6.2 percent respectively which indicate that MLR can be successfully applied to predict collector outlet temperatures in both seasons.
- Full Text:
- Date Issued: 2015
- Authors: Ndlovu, Nothando
- Date: 2015
- Subjects: Solar collectors Solar water heaters
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/12676 , vital:39298
- Description: In a period of rapidly increasing energy demand, the exploitation of abundantly available solar energy is imperative. Temperate climates like South Africa show good potential for utilizing solar-driven technologies such as solar water heaters. These systems offer an attractive alternative over conventional water geysers as a means to supply hot water for residential use. In South Africa, the solar water heater industry is growing rapidly as the government offers incentives manufactures and consumers. This necessitates the determination of performance of these systems through experimental analysis as well as performance prediction. This study evaluated the summer and winter performance of a flat plate, thermosyphon solar water heater under climatic conditions encountered in Alice, South Africa by considering the collector outlet temperature. The performance and weather data obtained were used to develop a multi linear regression (MLR) model for each season. MLR is a simple and easily applicable modelling approach which uses a set of input and output data to determine the model coefficients of a linear relation of two or more variables. The collector outlet temperature was correlated with solar radiation, ambient temperature, relative humidity, and collector inlet temperature since these variables have a direct impact on the collector temperature rise. Results from the performance showed that the collector performs well, attaining temperatures up to 87.2oC during the summer season and 70oC during winter season. The summer and winter percentage mean absolute error for the whole monitoring period were 4.07 percent and 6.2 percent respectively which indicate that MLR can be successfully applied to predict collector outlet temperatures in both seasons.
- Full Text:
- Date Issued: 2015
Missing values: a closer look
- Authors: Thorpe, Kerri
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/d1017827 , vital:20798
- Description: Problem: In today’s world, missing values are more present than ever. Due to the ever-changing and fast paced global society in which we live, most business and research data produced around the world contain missing data. This means that locating data which is meticulously precise can be a hard task in itself, but at times may prove essential as the consequences of making use of incomplete data could be disastrous. The reasons for missing data cropping up in almost all forms of work are numerous and shall be discussed in this dissertation. For example, those being interviewed or polled may choose to simply ignore questions which are posed to them, recording equipment may malfunction or be misplaced, or organisers may not be able to locate the respondent in order to rectify the missing data. Whatever the reasons for data being incomplete, it is necessary to avoid having to use inefficient and incomplete data as a result from the above problems. Therefore, various strategies or methods have been developed in order to handle these missing values. It is important, however, that these strategies or methods are utilised effectively as missing data treatment can introduce bias into the analysis. This dissertation shall look at these and other problems in more detail by using a data set which consists of records for 581 children who were interviewed in 1990 as part of the National Longitudinal Survey of Youth (NLSY). Approach: As mentioned above, many strategies or methods have been developed in order to deal with missing values. More specifically, traditional methods such as complete case analysis, available case analysis or single imputation are widely used by researchers and shall be discussed herein. Although these methods are simple and easy to implement, they require assumptions about the data that are not often satisfied in practice. Over the years, more up to date and relevant methods, such as multiple imputation and maximum likelihood have been developed. These methods rely on weaker assumptions and contain superior statistical properties when compared to the traditional techniques. In this dissertation, these traditional methods shall be reviewed and assessed in SAS and shall be compared to the more modern techniques. Results: The ad hoc techniques for handling missing data such as complete case and available case methods produce biased parameter estimates when the data is not missing completely at random (MCAR). Single imputation techniques likewise produce biased estimates as well as result in the underestimation of standard errors. Although the expectation maximisation (EM) algorithm yields unbiased parameter estimates, the lack of convenient standard errors suggests that using this algorithm for hypothesis testing is not a good idea. Multiple imputation, however, yields unbiased parameter estimates and correctly estimates standard errors. Conclusion: Ignoring missing data in any analysis produces biased parameter estimates. Using single imputation to handle missing values is not recommended, as using a single value to replace missing values does not account for the variation that would have been present if the variables were observed. As a result, the variance will be greatly underestimated. The more modern missing data methods such as the EM algorithm and multiple imputation are preferred over the traditional techniques as they require less stringent assumptions and they also mitigate the downsides of the older methods.
- Full Text:
- Date Issued: 2017
- Authors: Thorpe, Kerri
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/d1017827 , vital:20798
- Description: Problem: In today’s world, missing values are more present than ever. Due to the ever-changing and fast paced global society in which we live, most business and research data produced around the world contain missing data. This means that locating data which is meticulously precise can be a hard task in itself, but at times may prove essential as the consequences of making use of incomplete data could be disastrous. The reasons for missing data cropping up in almost all forms of work are numerous and shall be discussed in this dissertation. For example, those being interviewed or polled may choose to simply ignore questions which are posed to them, recording equipment may malfunction or be misplaced, or organisers may not be able to locate the respondent in order to rectify the missing data. Whatever the reasons for data being incomplete, it is necessary to avoid having to use inefficient and incomplete data as a result from the above problems. Therefore, various strategies or methods have been developed in order to handle these missing values. It is important, however, that these strategies or methods are utilised effectively as missing data treatment can introduce bias into the analysis. This dissertation shall look at these and other problems in more detail by using a data set which consists of records for 581 children who were interviewed in 1990 as part of the National Longitudinal Survey of Youth (NLSY). Approach: As mentioned above, many strategies or methods have been developed in order to deal with missing values. More specifically, traditional methods such as complete case analysis, available case analysis or single imputation are widely used by researchers and shall be discussed herein. Although these methods are simple and easy to implement, they require assumptions about the data that are not often satisfied in practice. Over the years, more up to date and relevant methods, such as multiple imputation and maximum likelihood have been developed. These methods rely on weaker assumptions and contain superior statistical properties when compared to the traditional techniques. In this dissertation, these traditional methods shall be reviewed and assessed in SAS and shall be compared to the more modern techniques. Results: The ad hoc techniques for handling missing data such as complete case and available case methods produce biased parameter estimates when the data is not missing completely at random (MCAR). Single imputation techniques likewise produce biased estimates as well as result in the underestimation of standard errors. Although the expectation maximisation (EM) algorithm yields unbiased parameter estimates, the lack of convenient standard errors suggests that using this algorithm for hypothesis testing is not a good idea. Multiple imputation, however, yields unbiased parameter estimates and correctly estimates standard errors. Conclusion: Ignoring missing data in any analysis produces biased parameter estimates. Using single imputation to handle missing values is not recommended, as using a single value to replace missing values does not account for the variation that would have been present if the variables were observed. As a result, the variance will be greatly underestimated. The more modern missing data methods such as the EM algorithm and multiple imputation are preferred over the traditional techniques as they require less stringent assumptions and they also mitigate the downsides of the older methods.
- Full Text:
- Date Issued: 2017
Exploring employees' need for the development of an employee assistance programme at a welfare organisation
- Authors: Mncunzwa, Gcobisa
- Date: 2017
- Subjects: Employee assistance programs
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/5554 , vital:29325
- Description: The study was conducted in order to determine the employee needs for an employee assistance programme in a welfare organisation in East London, Eastern Cape. This study was born out of a need from the management of this welfare organisation in East London who identified a need for an employee assistance Programme (EAP) within their organisation. According to management, there was a decline in productivity, and high stress levels due to high caseloads and societal demands (Leeuw, May 15, 2015). The theoretical framework that guided this research was systems theory. The rationale for using systems theory is that this study deals with individuals within an organisation who must coexist on a daily basis. There is a general belief that people and their physical-social-cultural environment interact in processes of mutual reciprocity and complementary exchanges (Merton, 2009). A qualitative approach was used in this study. Eight (8) employees from various levels in a welfare organisation were purposively selected to participate in the study. Semi-structured interviews were conducted with the participants and the interviews took more than forty-five (45) minutes each and this enabled the acquisition of rich information which is described in the findings and is used as a basis for the recommendations in the study. After the examination of the needs of employees for an EAP from the observations of both the employer and the employee it was clear that there is a need for employee assistance programmes in welfare organisations. Employees in this organisation are experiencing stress, burnout and were highly concerned about high caseloads that makes them feel incompetent to render adequate and quality services to their employees. The study also revealed that both employees and management of this organisation have different needs, experience different types of problems and view the EAP in different contexts. Despite the differences in their outlook on the situation, the evidence indicates that both employer and employee perceive that there is a need for an EAP, especially clinical services. At the same time, the issue of funding such a programme is also a concern. Recommendations were made for the organisation to develop an EAP to address the needs identified by employees, and for a clear communication strategy be developed to make all levels of employees within the organisation aware of the existence of such a programme. Another recommendation was made for the organisation to identify specific days on which they will conduct preventative awareness and debriefing sessions for the employees. It was also recommended that the South African Council for Social Services Professionals must standardise, regulate and monitor caseloads for the social work profession.
- Full Text:
- Date Issued: 2017
- Authors: Mncunzwa, Gcobisa
- Date: 2017
- Subjects: Employee assistance programs
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/5554 , vital:29325
- Description: The study was conducted in order to determine the employee needs for an employee assistance programme in a welfare organisation in East London, Eastern Cape. This study was born out of a need from the management of this welfare organisation in East London who identified a need for an employee assistance Programme (EAP) within their organisation. According to management, there was a decline in productivity, and high stress levels due to high caseloads and societal demands (Leeuw, May 15, 2015). The theoretical framework that guided this research was systems theory. The rationale for using systems theory is that this study deals with individuals within an organisation who must coexist on a daily basis. There is a general belief that people and their physical-social-cultural environment interact in processes of mutual reciprocity and complementary exchanges (Merton, 2009). A qualitative approach was used in this study. Eight (8) employees from various levels in a welfare organisation were purposively selected to participate in the study. Semi-structured interviews were conducted with the participants and the interviews took more than forty-five (45) minutes each and this enabled the acquisition of rich information which is described in the findings and is used as a basis for the recommendations in the study. After the examination of the needs of employees for an EAP from the observations of both the employer and the employee it was clear that there is a need for employee assistance programmes in welfare organisations. Employees in this organisation are experiencing stress, burnout and were highly concerned about high caseloads that makes them feel incompetent to render adequate and quality services to their employees. The study also revealed that both employees and management of this organisation have different needs, experience different types of problems and view the EAP in different contexts. Despite the differences in their outlook on the situation, the evidence indicates that both employer and employee perceive that there is a need for an EAP, especially clinical services. At the same time, the issue of funding such a programme is also a concern. Recommendations were made for the organisation to develop an EAP to address the needs identified by employees, and for a clear communication strategy be developed to make all levels of employees within the organisation aware of the existence of such a programme. Another recommendation was made for the organisation to identify specific days on which they will conduct preventative awareness and debriefing sessions for the employees. It was also recommended that the South African Council for Social Services Professionals must standardise, regulate and monitor caseloads for the social work profession.
- Full Text:
- Date Issued: 2017