Evaluation of pre-treatment methods on production of bioethanol from bagasse and sugarcane trash
- Authors: Dodo, Charlie Marembo
- Date: 2019
- Subjects: Lignocellulose
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15387 , vital:40403
- Description: A variety of methods have been researched on for bioethanol preparation from different feedstocks. Amongst the available feedstock, one such feedstock is the sugarcane plant. In most of the research on bioethanol preparation with sugarcane the sugary juice has been widely used, with the bagasse and trash having been discarded as waste. The “waste” bagasse and trash are usually removed and thrown away or burnt during harvesting or in sugar mills to supplement energy requirements. This research on lignocellulosic bagasse and trash was done so as not to discard them but to rather find ways in which to use this biomass constructively. Alternatives to burning that can potentially add value to this biomass need to be researched on by evaluating their hydrolysis content. The different lignocellulose pretreatment methods of concentrated and dilute acid pretreatment, with subsequent enzyme hydrolysis as well as alkali and oxidative alkali pretreatment with enzyme hydrolysis were experimented on the bagasse and trash for hydrolysis efficiency and effectiveness. There are two types of acid hydrolysis which were investigated on which are concentrated and dilute sulphuric acid pretreatments. Use of concentrated sulphuric acid yielded the highest amounts of reducing sugars but also resulted in the highest amounts of downstream process inhibitors formation. This resulted in the need for neutralisation steps which in turn increase the overall costs of using this method to obtain reducing sugars. It has however the advantage of occurring at a faster rate, within minutes or hours, than using biological enzymes which took days, up to 72 hours to obtain the highest reducing sugar amounts. Dilute sulphuric acid pretreatment offered the advantage of using fewer chemicals which are therefore less severe on equipment and result in fewer fermentation inhibitors being formed. Dilute sulphuric acid hydrolysis also takes a relatively shorter period than biological methods of pretreatment. A challenge of fermentation inhibitors formed during acid hydrolysis was countered by using the methods of overliming (calcium hydroxide) and comparing it to neutralization with sodium hydroxide. Alkali pretreatment with sodium hydroxide was researched on by applying different pretreatment concentrations during experiments on the lignocellulosic biomass. There was an increase in the available quantities of cellulose with a significant reduction in lignin with pretreatment. Alkali pretreatment proved effective in exposing the cellulose which made v more cellulose surface area available to cellulase enzymes for enzyme hydrolysis. The highest yield of reducing sugars was obtained from hydrolysates pretreated with 0.25 M sodium hydroxide for 60 min and a period of 72 h of enzyme hydrolysis. In general the longer the pretreatment time the more reducing sugars were produced from the enzyme hydrolysis. Alkali peroxide pretreatment also resulted in significant reductions in lignin quantities of lignocellulose material. In this method sodium hydroxide in combination with hydrogen peroxide were used in pretreating the biomass. Hydrolysates with even fewer fermentation inhibitors were produced as a result. The highest percentage concentration of cellulose of 63% (g/g) was achieved after pretreatment of bagasse with 5% alkali hydrogen peroxide and trash with 0,25M sodium hydroxide pretreatment. Pretreatment of biomass using alkali with subsequent enzymatic hydrolysis gave the highest yields of fermentable sugars of 38% (g/g) using 7% (v/v) alkali peroxide pre-treated trash than 36% (g/g) for 5% (v/v) with the least inhibitors. Reducing sugar yields of 25% (g/g) and 22% (g/g) were obtained after pretreatment with concentrated and dilute acid respectively. Neutralization of the acid hydrolysates was necessary to reduce inhibitors formed with neutralisation by sodium hydroxide resulting in low dilutions and loss of fermentable sugars as unlike in the case of overliming. Subsequent steps of fermenting the reducing sugars resulting from pretreatment into bioethanol were based on using the yeast Saccharomyces cerevisae. Pretreatment hydrolysates from alkali peroxide experiments produced higher bioethanol yields of 13.7 (g/l) after enzyme hydrolysates versus 6.9 (g/l) bioethanol from dilute acid hydrolyzates. A comparison of the effects of time showed there was more bioethanol yield of 13.7 (g/l) after 72 h of fermentation with the yeast versus 7.0 (g/l) bioethanol after pretreatment for 24 h. The only drawback is the longer fermentation period which thus reduces the process and so reduces the value of the increase in yield
- Full Text:
- Authors: Dodo, Charlie Marembo
- Date: 2019
- Subjects: Lignocellulose
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15387 , vital:40403
- Description: A variety of methods have been researched on for bioethanol preparation from different feedstocks. Amongst the available feedstock, one such feedstock is the sugarcane plant. In most of the research on bioethanol preparation with sugarcane the sugary juice has been widely used, with the bagasse and trash having been discarded as waste. The “waste” bagasse and trash are usually removed and thrown away or burnt during harvesting or in sugar mills to supplement energy requirements. This research on lignocellulosic bagasse and trash was done so as not to discard them but to rather find ways in which to use this biomass constructively. Alternatives to burning that can potentially add value to this biomass need to be researched on by evaluating their hydrolysis content. The different lignocellulose pretreatment methods of concentrated and dilute acid pretreatment, with subsequent enzyme hydrolysis as well as alkali and oxidative alkali pretreatment with enzyme hydrolysis were experimented on the bagasse and trash for hydrolysis efficiency and effectiveness. There are two types of acid hydrolysis which were investigated on which are concentrated and dilute sulphuric acid pretreatments. Use of concentrated sulphuric acid yielded the highest amounts of reducing sugars but also resulted in the highest amounts of downstream process inhibitors formation. This resulted in the need for neutralisation steps which in turn increase the overall costs of using this method to obtain reducing sugars. It has however the advantage of occurring at a faster rate, within minutes or hours, than using biological enzymes which took days, up to 72 hours to obtain the highest reducing sugar amounts. Dilute sulphuric acid pretreatment offered the advantage of using fewer chemicals which are therefore less severe on equipment and result in fewer fermentation inhibitors being formed. Dilute sulphuric acid hydrolysis also takes a relatively shorter period than biological methods of pretreatment. A challenge of fermentation inhibitors formed during acid hydrolysis was countered by using the methods of overliming (calcium hydroxide) and comparing it to neutralization with sodium hydroxide. Alkali pretreatment with sodium hydroxide was researched on by applying different pretreatment concentrations during experiments on the lignocellulosic biomass. There was an increase in the available quantities of cellulose with a significant reduction in lignin with pretreatment. Alkali pretreatment proved effective in exposing the cellulose which made v more cellulose surface area available to cellulase enzymes for enzyme hydrolysis. The highest yield of reducing sugars was obtained from hydrolysates pretreated with 0.25 M sodium hydroxide for 60 min and a period of 72 h of enzyme hydrolysis. In general the longer the pretreatment time the more reducing sugars were produced from the enzyme hydrolysis. Alkali peroxide pretreatment also resulted in significant reductions in lignin quantities of lignocellulose material. In this method sodium hydroxide in combination with hydrogen peroxide were used in pretreating the biomass. Hydrolysates with even fewer fermentation inhibitors were produced as a result. The highest percentage concentration of cellulose of 63% (g/g) was achieved after pretreatment of bagasse with 5% alkali hydrogen peroxide and trash with 0,25M sodium hydroxide pretreatment. Pretreatment of biomass using alkali with subsequent enzymatic hydrolysis gave the highest yields of fermentable sugars of 38% (g/g) using 7% (v/v) alkali peroxide pre-treated trash than 36% (g/g) for 5% (v/v) with the least inhibitors. Reducing sugar yields of 25% (g/g) and 22% (g/g) were obtained after pretreatment with concentrated and dilute acid respectively. Neutralization of the acid hydrolysates was necessary to reduce inhibitors formed with neutralisation by sodium hydroxide resulting in low dilutions and loss of fermentable sugars as unlike in the case of overliming. Subsequent steps of fermenting the reducing sugars resulting from pretreatment into bioethanol were based on using the yeast Saccharomyces cerevisae. Pretreatment hydrolysates from alkali peroxide experiments produced higher bioethanol yields of 13.7 (g/l) after enzyme hydrolysates versus 6.9 (g/l) bioethanol from dilute acid hydrolyzates. A comparison of the effects of time showed there was more bioethanol yield of 13.7 (g/l) after 72 h of fermentation with the yeast versus 7.0 (g/l) bioethanol after pretreatment for 24 h. The only drawback is the longer fermentation period which thus reduces the process and so reduces the value of the increase in yield
- Full Text:
Evaluation of some Eastern beach bacteria for high activity laccase production
- Authors: Ntlatywa, Nonkolisi
- Date: 2019
- Subjects: Laccase
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/${Handle} , vital:40025
- Description: Laccases are multi-copper oxidases endowed with huge applicability and versatility. They are found in nature, fungi, insects, archaea and bacteria; however, there is a dearth of information regarding bacterial laccases. Thus, the search for novel bacterial laccases becomes crucial. Therefore, the broad aim of the study was the assessment of some bacteria on marine water isolated from Eastern beach for the production of high activity laccases. In this study, marine water samples obtained from the Eastern beach in East London were investigated for bacterial laccase-producing isolates. The samples were analysed using different microbiological media and varied substrates via qualitative methods. The isolates were tested for laccase activity using ABTS (2, 2’- azinobis 3-ethyl-benzothiazoline-6-sulphonate), as a substrate. The present study also dealt with the optimization of culture conditions for laccase production and characterization of laccase. A total of forty-eight (48) bacterial isolates were obtained, which were identified based on their morphological and cultural characteristics. Many of the isolates (42) were categorized as Gram positive and a few (6) as Gram negative upon subjecting to microscopic examination. Result showed that on average, laccase activity ranged from 5.33 – 6.5 U/L as demonstrated by three bacterial isolates (Bacillus sp. NFN1, Bacillus sp. NLN and Escherichia coli LO). Laccase production was highly enhanced by the supplementation with vanillic acid by Bacillus sp. strain NLN with yield of 15.83 ± 0.7 U/L, Bacillus sp. strain NFN1, 12.72 ± 0.21 U/L. However, Escherichia coli LO demonstrated enhanced laccase production with guaiacol (12.84 ± 1.12 U/L) followed by ferrulic acid (12.8 ± 0.36 U/L). While optimization results revealed that the laccase yield was enhanced under the following conditions: 72 h of incubation, pH 5, 0.5mg/L lactose as a carbon source, 1. 5 mg/L yeast extract as a nitrogen source as well as in the presence of corn stover and mandarin peels as lignocellulosic substrates depending on the bacteria.The time course and stability of laccase against temperature, pH, metal ions and organic solvents were investigated using previously described methods. In the findings obtained for the time course, the laccase activity ranged from 22.2- 23.98 U/L. In general, the optimum parameters for the optimum laccase activities depended on the bacterial isolates and the time of incubation and included 80 °C and 70 °C, pH 3 and 9 while, the thermal stability was over 100%. Overall, NaCl, ZnSO4, NiCl and 20% acetone demonstrated positive effect on the residual activity of the laccases of all the bacterial isolates (Bacillus sp. NFN1, Bacillus v sp. NLN and Escherichia coli LO). In conclusion the findings of the study, suggest that marine water of the Eastern beach is a rich source for laccase producing bacteria with potential of high activity.
- Full Text:
- Authors: Ntlatywa, Nonkolisi
- Date: 2019
- Subjects: Laccase
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/${Handle} , vital:40025
- Description: Laccases are multi-copper oxidases endowed with huge applicability and versatility. They are found in nature, fungi, insects, archaea and bacteria; however, there is a dearth of information regarding bacterial laccases. Thus, the search for novel bacterial laccases becomes crucial. Therefore, the broad aim of the study was the assessment of some bacteria on marine water isolated from Eastern beach for the production of high activity laccases. In this study, marine water samples obtained from the Eastern beach in East London were investigated for bacterial laccase-producing isolates. The samples were analysed using different microbiological media and varied substrates via qualitative methods. The isolates were tested for laccase activity using ABTS (2, 2’- azinobis 3-ethyl-benzothiazoline-6-sulphonate), as a substrate. The present study also dealt with the optimization of culture conditions for laccase production and characterization of laccase. A total of forty-eight (48) bacterial isolates were obtained, which were identified based on their morphological and cultural characteristics. Many of the isolates (42) were categorized as Gram positive and a few (6) as Gram negative upon subjecting to microscopic examination. Result showed that on average, laccase activity ranged from 5.33 – 6.5 U/L as demonstrated by three bacterial isolates (Bacillus sp. NFN1, Bacillus sp. NLN and Escherichia coli LO). Laccase production was highly enhanced by the supplementation with vanillic acid by Bacillus sp. strain NLN with yield of 15.83 ± 0.7 U/L, Bacillus sp. strain NFN1, 12.72 ± 0.21 U/L. However, Escherichia coli LO demonstrated enhanced laccase production with guaiacol (12.84 ± 1.12 U/L) followed by ferrulic acid (12.8 ± 0.36 U/L). While optimization results revealed that the laccase yield was enhanced under the following conditions: 72 h of incubation, pH 5, 0.5mg/L lactose as a carbon source, 1. 5 mg/L yeast extract as a nitrogen source as well as in the presence of corn stover and mandarin peels as lignocellulosic substrates depending on the bacteria.The time course and stability of laccase against temperature, pH, metal ions and organic solvents were investigated using previously described methods. In the findings obtained for the time course, the laccase activity ranged from 22.2- 23.98 U/L. In general, the optimum parameters for the optimum laccase activities depended on the bacterial isolates and the time of incubation and included 80 °C and 70 °C, pH 3 and 9 while, the thermal stability was over 100%. Overall, NaCl, ZnSO4, NiCl and 20% acetone demonstrated positive effect on the residual activity of the laccases of all the bacterial isolates (Bacillus sp. NFN1, Bacillus v sp. NLN and Escherichia coli LO). In conclusion the findings of the study, suggest that marine water of the Eastern beach is a rich source for laccase producing bacteria with potential of high activity.
- Full Text:
Examining educators’ strategies for promoting science learning and science literacy among grade 9 learners in a South African Rural Education District
- Authors: Mtsi, Nomxolisi
- Date: 2019
- Subjects: Science -- Study and teaching (Elementary) Children's literature in science education
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/16150 , vital:40673
- Description: Science learning and Science Literacy (SL) play a crucial role in preparing learners to participate in the country’s economy with the relevant knowledge, higher order thinking and analytical reasoning to solve day-to-day problems. The purpose of this research was to examine educators’ strategies for promoting science learning and SL among grade 9 learners in a rural education district in South Africa’s Eastern Cape Province. Learning of science and promotion of SL complement each other and therefore science educators’ strategies are pertinent. The study used pragmatic paradigm and the mixed method approach and was informed by cognitive and social constructivism as theoretical frameworks. For data collection, the study used convenience sampling based on the proximity and comparative ease of the researcher to reach the rural schools to select 30 out of 67 schools spread over six out of the eight circuits in the selected education district. On the other hand, purposive sampling was used for the selection of learners by their educators based on academic performance, top, average and below average achievers. Since each school had only one grade 9 science educator, 30 grade 9 science educators from the selected 30 schools formed the sample for quantitative data. Out of these 30, 10 educators who volunteered first for interviews and gave permission for being observed in their classrooms were selected for qualitative data collection. Three learners in each of the 10 schools from which the educators for qualitative data collection were selected, constituted the learners’ sample (30 learners). While data were collected through questionnaires, interviews and observations from educators, data from learners were collected through focus group (FG) interviews. The questionnaire was structured in order to gather educators’ biographical data as well as information on educators’ strategies to promote science learning and SL. The interview schedule was similar to the questionnaire but biographical data were excluded. Observations focused on educators’ strategies for science learning, SL and assessments. The data from the questionnaire were descriptively analysed and the qualitative and transcribed observation data were thematically analysed. Final conclusions were drawn based on the triangulated data. Major findings showed that the strategies which the educators employed in the descending order of use were: Investigation at 97percent; Discussion, Presentation and Project, each at 93percent; Problem solving at 90percent; Demonstration and Question-Answer, each at 87percent; Case study and Brainstorming, each at 77percent; Role-play at 63percent; Lecture at 57percent; Modelling at 47percent, Inquiry at 27percent and Simulation at 23percent. Findings also revealed the strengths and weaknesses of the strategies used by educators. Some of the strengths were: promotion of interactive learning; stimulation of research skills; enhancement of critical thinking and development of confidence through participation. Some of the weaknesses were: learners’ tendency to rely on others; lack of resources hindering learning and promotion of plagiarism. The study recommends that all stakeholders must work together to achieve good quality education. District and Provincial officers ought to track and monitor the science curriculum implementation. Subject specialists, educator subject committees and cluster leaders must also be active in strategic planning for enhancing SL in schools by putting forward their inputs and adopting consensus-based ones. A framework for driving science content with pedagogical content knowledge and practicals-driven strategy for enhancing science content knowledge is proposed.
- Full Text:
- Authors: Mtsi, Nomxolisi
- Date: 2019
- Subjects: Science -- Study and teaching (Elementary) Children's literature in science education
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/16150 , vital:40673
- Description: Science learning and Science Literacy (SL) play a crucial role in preparing learners to participate in the country’s economy with the relevant knowledge, higher order thinking and analytical reasoning to solve day-to-day problems. The purpose of this research was to examine educators’ strategies for promoting science learning and SL among grade 9 learners in a rural education district in South Africa’s Eastern Cape Province. Learning of science and promotion of SL complement each other and therefore science educators’ strategies are pertinent. The study used pragmatic paradigm and the mixed method approach and was informed by cognitive and social constructivism as theoretical frameworks. For data collection, the study used convenience sampling based on the proximity and comparative ease of the researcher to reach the rural schools to select 30 out of 67 schools spread over six out of the eight circuits in the selected education district. On the other hand, purposive sampling was used for the selection of learners by their educators based on academic performance, top, average and below average achievers. Since each school had only one grade 9 science educator, 30 grade 9 science educators from the selected 30 schools formed the sample for quantitative data. Out of these 30, 10 educators who volunteered first for interviews and gave permission for being observed in their classrooms were selected for qualitative data collection. Three learners in each of the 10 schools from which the educators for qualitative data collection were selected, constituted the learners’ sample (30 learners). While data were collected through questionnaires, interviews and observations from educators, data from learners were collected through focus group (FG) interviews. The questionnaire was structured in order to gather educators’ biographical data as well as information on educators’ strategies to promote science learning and SL. The interview schedule was similar to the questionnaire but biographical data were excluded. Observations focused on educators’ strategies for science learning, SL and assessments. The data from the questionnaire were descriptively analysed and the qualitative and transcribed observation data were thematically analysed. Final conclusions were drawn based on the triangulated data. Major findings showed that the strategies which the educators employed in the descending order of use were: Investigation at 97percent; Discussion, Presentation and Project, each at 93percent; Problem solving at 90percent; Demonstration and Question-Answer, each at 87percent; Case study and Brainstorming, each at 77percent; Role-play at 63percent; Lecture at 57percent; Modelling at 47percent, Inquiry at 27percent and Simulation at 23percent. Findings also revealed the strengths and weaknesses of the strategies used by educators. Some of the strengths were: promotion of interactive learning; stimulation of research skills; enhancement of critical thinking and development of confidence through participation. Some of the weaknesses were: learners’ tendency to rely on others; lack of resources hindering learning and promotion of plagiarism. The study recommends that all stakeholders must work together to achieve good quality education. District and Provincial officers ought to track and monitor the science curriculum implementation. Subject specialists, educator subject committees and cluster leaders must also be active in strategic planning for enhancing SL in schools by putting forward their inputs and adopting consensus-based ones. A framework for driving science content with pedagogical content knowledge and practicals-driven strategy for enhancing science content knowledge is proposed.
- Full Text:
Examining the cognitive learning effect on grade 10 students’ performance in physical science in selected schools in Umgungudlovu Education District
- Authors: Olorunda, David Oluyemi
- Date: 2019
- Subjects: Cognitive learning Learning, Psychology of
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/16577 , vital:40733
- Description: The study employed a quantitative as well as a qualitative approach. Four public schools in the uMgungundlovu District participated in this study. The identities of all respondents were protected. The sample included 154 participants, four Physical science educators and four Heads of department selected purposefully across four secondary schools. The study found that themajority of the learners reported that they have interest and positive attitude for Physical science but most of learners indicated they understanding when English is used as a medium of instruction in teaching Physical science but someprefer other languages to be used for their understanding. It was obvious that most parents lacked knowledge about Physical Sciences and could not assist their children. It was also indicated that their teachers are approachable especially for personal explanation giving them attention whenever they ask for assistance, creating an atmosphere that makes it easy for the learner to learn. The study reveals that learners had a high rate of their teachers motivating them enough to like physical science, by using different method for them to understand the subject and majority follow their teacher’s method but only few learners use their own method.The educators and the heads of departments confirmed that they do give the learners different method. Many learners understands what they are taught using diagrams and illustrations in order to make them understand in all subject study showed that the head of departments indicatedthat they do check the way the teachers teach for effectiveness on the part of the teachers in ,line with the curriculum assessment policy statement from the department of education .The educators said they receive their educational in- service training and done yearly at the department of education workshop and moderations. Findings from this research reveals that learners learns one way or the other through all the strategies of learning but most learners affirms that they learn more rehearsal where they have to repeat things more and that the physical sciences teacher should have more time and explain thoroughly particular term, using diagrams and illustrations in order to make them understand in all subject. The study concluded by giving general recommendations for improving learners’ participation and attitudes towards learning physical Science. Recommendations for improvement in the areas identified were III provided and topics for future research on the curriculum of Grade 10 Physical Sciences were suggested in order to improve on physical science.
- Full Text:
- Authors: Olorunda, David Oluyemi
- Date: 2019
- Subjects: Cognitive learning Learning, Psychology of
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/16577 , vital:40733
- Description: The study employed a quantitative as well as a qualitative approach. Four public schools in the uMgungundlovu District participated in this study. The identities of all respondents were protected. The sample included 154 participants, four Physical science educators and four Heads of department selected purposefully across four secondary schools. The study found that themajority of the learners reported that they have interest and positive attitude for Physical science but most of learners indicated they understanding when English is used as a medium of instruction in teaching Physical science but someprefer other languages to be used for their understanding. It was obvious that most parents lacked knowledge about Physical Sciences and could not assist their children. It was also indicated that their teachers are approachable especially for personal explanation giving them attention whenever they ask for assistance, creating an atmosphere that makes it easy for the learner to learn. The study reveals that learners had a high rate of their teachers motivating them enough to like physical science, by using different method for them to understand the subject and majority follow their teacher’s method but only few learners use their own method.The educators and the heads of departments confirmed that they do give the learners different method. Many learners understands what they are taught using diagrams and illustrations in order to make them understand in all subject study showed that the head of departments indicatedthat they do check the way the teachers teach for effectiveness on the part of the teachers in ,line with the curriculum assessment policy statement from the department of education .The educators said they receive their educational in- service training and done yearly at the department of education workshop and moderations. Findings from this research reveals that learners learns one way or the other through all the strategies of learning but most learners affirms that they learn more rehearsal where they have to repeat things more and that the physical sciences teacher should have more time and explain thoroughly particular term, using diagrams and illustrations in order to make them understand in all subject. The study concluded by giving general recommendations for improving learners’ participation and attitudes towards learning physical Science. Recommendations for improvement in the areas identified were III provided and topics for future research on the curriculum of Grade 10 Physical Sciences were suggested in order to improve on physical science.
- Full Text:
Examining the position of black South African accents in English in Drama Departments within institutions in the Western Cape Province: a case study
- Authors: Seekoe, Leanetse Thato
- Date: 2019
- Subjects: English language
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10353/16397 , vital:40716
- Description: This dissertation examines the treatment and perceptions of black South African accents in English in the drama departments of specific institutions of higher learning in the Western Cape Province. The researcher is concerned with the handling of African native cultural identities in the curriculum policy of Drama Departments in higher education institutions in the Western Cape Province. Although the focus of the research is on the institutions that are based in the Western Cape Province, the subjects that are being discussed are representatives of black people in South Africa as a whole. To portray the issue of accents appropriately, the examination does often refer to language as a relatable concept. In the literature of this dissertation, there is ample support for the claim that language differences and disagreements in South Africa are due to the historical and socio-political stance of the European native. After examining the topic of power and social control, the study points out that the native is rarely in control of the interests of the European descendent. Thus, the relationship between the two is immediately assumed before it has even been established. For the purpose of this discussion, ambiguity is appreciated when intimacy between cultures evolves for the greater good. However, it is disregarded when individual voices are diluted into neutral or standard representations of a language. And so the act of reducing black South African accents in English to mirror that of the Euro-American culture robs the natives of their individuality and imprisons them into cultural assimilation. Ultimately, this study intends to identify different groups of black South Africans who speak English with accents. For clarity has divided into two separate groups namely privileged and unprivileged. Accents that are appreciated by white South African English speakers are considered to be privileged, while accents that carry the undertones of any mother-tongue language are recognised in this research study as unprivileged. The study wishes to present this phenomenon as a social issue that will negatively affect the growth of indigenous participation in performance spaces in the Western Cape which the study assumes as the context for the research. The implication of the study is to potentially eliminate issues of inferiority to those black South African accents that have been regarded as less valuable to dramatic performances in the Western Cape, to the extent that platforms of dramatic performances will broaden in order for black South African accents to be prioritised with relevant usage
- Full Text:
- Authors: Seekoe, Leanetse Thato
- Date: 2019
- Subjects: English language
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10353/16397 , vital:40716
- Description: This dissertation examines the treatment and perceptions of black South African accents in English in the drama departments of specific institutions of higher learning in the Western Cape Province. The researcher is concerned with the handling of African native cultural identities in the curriculum policy of Drama Departments in higher education institutions in the Western Cape Province. Although the focus of the research is on the institutions that are based in the Western Cape Province, the subjects that are being discussed are representatives of black people in South Africa as a whole. To portray the issue of accents appropriately, the examination does often refer to language as a relatable concept. In the literature of this dissertation, there is ample support for the claim that language differences and disagreements in South Africa are due to the historical and socio-political stance of the European native. After examining the topic of power and social control, the study points out that the native is rarely in control of the interests of the European descendent. Thus, the relationship between the two is immediately assumed before it has even been established. For the purpose of this discussion, ambiguity is appreciated when intimacy between cultures evolves for the greater good. However, it is disregarded when individual voices are diluted into neutral or standard representations of a language. And so the act of reducing black South African accents in English to mirror that of the Euro-American culture robs the natives of their individuality and imprisons them into cultural assimilation. Ultimately, this study intends to identify different groups of black South Africans who speak English with accents. For clarity has divided into two separate groups namely privileged and unprivileged. Accents that are appreciated by white South African English speakers are considered to be privileged, while accents that carry the undertones of any mother-tongue language are recognised in this research study as unprivileged. The study wishes to present this phenomenon as a social issue that will negatively affect the growth of indigenous participation in performance spaces in the Western Cape which the study assumes as the context for the research. The implication of the study is to potentially eliminate issues of inferiority to those black South African accents that have been regarded as less valuable to dramatic performances in the Western Cape, to the extent that platforms of dramatic performances will broaden in order for black South African accents to be prioritised with relevant usage
- Full Text:
Examining the teaching of natural sciences concepts to English second language speakers in selected primary schools in the East London Education District
- Authors: Kumanda, Nomaroma
- Date: 2019
- Subjects: Science -- Study and teaching
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/15925 , vital:40564
- Description: The study sought to examine the teaching of Natural Sciences (NS) concepts to English second language speakers in selected primary schools. Grade 7 was chosen for the investigation as it precedes the last class at primary school. The researcher investigated the teaching and learning of Natural sciences concepts. A mixed method design was used. The research questions focused on the teaching of NS, learner-centred strategies used, challenges encountered, strategies employed by teachers when teaching NS, and the implications for science education.The purpose was to examine the teaching of Natural Sciences concepts to English second language speakers in selected primary schools in the East London Education District. Data were collected from grade 7 teachers and learners in selected township schools in East London, by means of semi-structured interviews, questionnaires and focus groups. Semi-structured questionnaires were administered to teachers and learners, individual interviews were conducted with NS head of department, focus group and interviews were held with grade 7 NS learners. Quantitative and qualitative data were independently analysed and merged at the interpretation stage for triangulation of results. The questions were grouped according to their themes. The researcher’s findings revealed that teachers linked the teaching of NS concepts by showing the teaching skills. Teachers used code-switching for learners to understand the scientific concepts for positive attitude to improve the learner performance. Teachers experienced problems using English as a Language of Learning and Teaching (LoLT) while teaching NS concepts, teachers’ understanding of NS influenced their ability to implement of transformational curriculum, but learners did not benefit much when learning science in English Language and those policies were designed by the Department of Education without teacher involvement. The study concluded by noting that It emerged that teachers and learners experienced difficulties in teaching and learning of the NS concepts.
- Full Text:
- Authors: Kumanda, Nomaroma
- Date: 2019
- Subjects: Science -- Study and teaching
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/15925 , vital:40564
- Description: The study sought to examine the teaching of Natural Sciences (NS) concepts to English second language speakers in selected primary schools. Grade 7 was chosen for the investigation as it precedes the last class at primary school. The researcher investigated the teaching and learning of Natural sciences concepts. A mixed method design was used. The research questions focused on the teaching of NS, learner-centred strategies used, challenges encountered, strategies employed by teachers when teaching NS, and the implications for science education.The purpose was to examine the teaching of Natural Sciences concepts to English second language speakers in selected primary schools in the East London Education District. Data were collected from grade 7 teachers and learners in selected township schools in East London, by means of semi-structured interviews, questionnaires and focus groups. Semi-structured questionnaires were administered to teachers and learners, individual interviews were conducted with NS head of department, focus group and interviews were held with grade 7 NS learners. Quantitative and qualitative data were independently analysed and merged at the interpretation stage for triangulation of results. The questions were grouped according to their themes. The researcher’s findings revealed that teachers linked the teaching of NS concepts by showing the teaching skills. Teachers used code-switching for learners to understand the scientific concepts for positive attitude to improve the learner performance. Teachers experienced problems using English as a Language of Learning and Teaching (LoLT) while teaching NS concepts, teachers’ understanding of NS influenced their ability to implement of transformational curriculum, but learners did not benefit much when learning science in English Language and those policies were designed by the Department of Education without teacher involvement. The study concluded by noting that It emerged that teachers and learners experienced difficulties in teaching and learning of the NS concepts.
- Full Text:
experiences of female sex workers in Buffalo City Metropolitan Municipality, Eastern Cape
- Authors: Gcina, Boniswa Letticia
- Date: 2019
- Subjects: Prostitutes
- Language: English
- Type: Thesis , Masters , MPH
- Identifier: http://hdl.handle.net/10353/16730 , vital:40768
- Description: The phenomenon of female sex workers in South Africa is yet to be understood from both the cultural and legal perspectives. This gap leads to various challenges experienced by female sex workers in the country. The purpose of this study was to explore the experiences of female sex workers in Buffalo City Metropolitan, Eastern Cape Province. A descriptive phenomenological design was used to gain in-depth understanding and knowledge on the experiences of female sex workers’ in reality and social context. The study targeted female sex workers aged between 18-49 years for interviews. Purposive sampling technique was used to recruit female sex workers and four focus groups of five members in each group were interviewed to collect data. Due to the sensitivity of the research topic, ethical approvals were sought and granted by University of Fort Hare Research Ethics Committee and the Eastern Cape Department of Health. Further, informed consent was obtained from study participants before data collection begun. Data analysis was done by using Tesch’ method steps. The findings indicated that in Buffalo City Metropolitan the female sex workers were experiencing human rights violation, stigma and discrimination, they were at risk of contracting HIV due to the nature of their work, and they were at risk of being in conflict with the law due to the nature of sex work in South Africa. The study recommends on the decriminalization of sex work in order to decrease rate of violence, rape and exploitation of female sex workers; the closure of all Illegal brothels as they promote drugs and substance abuse among this vulnerable group; and provision of counselling sessions for female sex workers by the Department of Social Welfare. The study concludes that peer educators training and embarking on campaigns in the community, media and social networks to promote ‘Anti-violence against sex workers’ is necessary. Therefore, the female sex workers need to be protected by police from any form of abuse and violence by the community, clients and pimps. This can address the psychological stress displayed by female sex workers in the studydomain
- Full Text:
- Authors: Gcina, Boniswa Letticia
- Date: 2019
- Subjects: Prostitutes
- Language: English
- Type: Thesis , Masters , MPH
- Identifier: http://hdl.handle.net/10353/16730 , vital:40768
- Description: The phenomenon of female sex workers in South Africa is yet to be understood from both the cultural and legal perspectives. This gap leads to various challenges experienced by female sex workers in the country. The purpose of this study was to explore the experiences of female sex workers in Buffalo City Metropolitan, Eastern Cape Province. A descriptive phenomenological design was used to gain in-depth understanding and knowledge on the experiences of female sex workers’ in reality and social context. The study targeted female sex workers aged between 18-49 years for interviews. Purposive sampling technique was used to recruit female sex workers and four focus groups of five members in each group were interviewed to collect data. Due to the sensitivity of the research topic, ethical approvals were sought and granted by University of Fort Hare Research Ethics Committee and the Eastern Cape Department of Health. Further, informed consent was obtained from study participants before data collection begun. Data analysis was done by using Tesch’ method steps. The findings indicated that in Buffalo City Metropolitan the female sex workers were experiencing human rights violation, stigma and discrimination, they were at risk of contracting HIV due to the nature of their work, and they were at risk of being in conflict with the law due to the nature of sex work in South Africa. The study recommends on the decriminalization of sex work in order to decrease rate of violence, rape and exploitation of female sex workers; the closure of all Illegal brothels as they promote drugs and substance abuse among this vulnerable group; and provision of counselling sessions for female sex workers by the Department of Social Welfare. The study concludes that peer educators training and embarking on campaigns in the community, media and social networks to promote ‘Anti-violence against sex workers’ is necessary. Therefore, the female sex workers need to be protected by police from any form of abuse and violence by the community, clients and pimps. This can address the psychological stress displayed by female sex workers in the studydomain
- Full Text:
Experiences of midwives regarding the use of pharmacological and non-pharmacological labour pain interventions in Lejweleputswa district in Free State
- Parkies, Limakatso Elizabeth
- Authors: Parkies, Limakatso Elizabeth
- Date: 2019
- Subjects: Anesthesia in obstetrics , Labor (Obstetrics) , Pain -- Treatment
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27187 , vital:66387
- Description: Due to the disabling effects of severe labour pains, labour pain management remains an important topic in midwifery and needs to be reviewed more often. According to studies, various pain relief options, both pharmacological and non-pharmacological, are available to help women cope with pain, but midwives did not employ these techniques adequately because of various experiences. Studies further indicate that, though the limited number of these techniques were employed they were not effective on some women. Thus, the purpose of this research study was to explore and describe midwives’ experiences on pharmacological and non-pharmacological labour pain management in the Lejweleputswa District of the Free State Province. This study employed a qualitative, descriptive, explorative, and contextual design. A purposive sampling technique was used to select the participants. The target population was midwives who work in the maternity wards of the institutions under study with three to five years’ experience in midwifery. Individual, face-face, semi-structured interviews were conducted; these were recorded for the researcher’s reference purposes, so as not to overlook important information. In addition, the researcher made use of field notes, recording in them what was heard, observed, felt, experienced, and thought during the interview. Ethical principles and trustworthiness were maintained throughout this study. Data analysis was done using Tesch’s approach to open coding in qualitative research. Confidentiality and anonymity were ensured throughout the interviews. The nine themes and 19 sub-themes that emerged during data analysis were discussed comprehensively. The findings indicate that midwives use both pharmacological and non-pharmacological methods in managing labour pain. Some methods are effective in relieving pain for certain mothers, while other methods proved ineffective. Midwives administer Pethidine and Phenergan as per doctors’ prescription; non-pharmacological methods, such as back massage, deep breathing exercises, mobilisation, and warm baths or showers are also employed. Midwives provide pharmacological methods to all women in labour, and routinely employ non-pharmacological methods. Although the midwives are willing to manage patients’ pain, they face certain challenges, such as shortage of staff, increased workload, as well as inadequate resources. This leads to inadequate provision of non-pharmacological care. In conclusion, the midwives’ experiences were that both pharmacological and non-pharmacological techniques were used for all labouring women and they had relaxing and calming effects on some women, resulting to them giving birth with ease, although for some they were not effective. In addition, the pharmacological interventions caused drowsiness to some women and babies. The findings will provide evidence-based information to the Free State Department of Health in order to assist policymakers and stakeholders in initiating and developing appropriate policies, guidelines, and interventions that can improve labour pain management. The Free State Department of Health should consider using other opioids and non-opioids in managing labour pain to broaden the scope of pain relief methods available to the midwives. , Thesis (MPH) -- Faculty of Health Sciences, 2019
- Full Text:
- Authors: Parkies, Limakatso Elizabeth
- Date: 2019
- Subjects: Anesthesia in obstetrics , Labor (Obstetrics) , Pain -- Treatment
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27187 , vital:66387
- Description: Due to the disabling effects of severe labour pains, labour pain management remains an important topic in midwifery and needs to be reviewed more often. According to studies, various pain relief options, both pharmacological and non-pharmacological, are available to help women cope with pain, but midwives did not employ these techniques adequately because of various experiences. Studies further indicate that, though the limited number of these techniques were employed they were not effective on some women. Thus, the purpose of this research study was to explore and describe midwives’ experiences on pharmacological and non-pharmacological labour pain management in the Lejweleputswa District of the Free State Province. This study employed a qualitative, descriptive, explorative, and contextual design. A purposive sampling technique was used to select the participants. The target population was midwives who work in the maternity wards of the institutions under study with three to five years’ experience in midwifery. Individual, face-face, semi-structured interviews were conducted; these were recorded for the researcher’s reference purposes, so as not to overlook important information. In addition, the researcher made use of field notes, recording in them what was heard, observed, felt, experienced, and thought during the interview. Ethical principles and trustworthiness were maintained throughout this study. Data analysis was done using Tesch’s approach to open coding in qualitative research. Confidentiality and anonymity were ensured throughout the interviews. The nine themes and 19 sub-themes that emerged during data analysis were discussed comprehensively. The findings indicate that midwives use both pharmacological and non-pharmacological methods in managing labour pain. Some methods are effective in relieving pain for certain mothers, while other methods proved ineffective. Midwives administer Pethidine and Phenergan as per doctors’ prescription; non-pharmacological methods, such as back massage, deep breathing exercises, mobilisation, and warm baths or showers are also employed. Midwives provide pharmacological methods to all women in labour, and routinely employ non-pharmacological methods. Although the midwives are willing to manage patients’ pain, they face certain challenges, such as shortage of staff, increased workload, as well as inadequate resources. This leads to inadequate provision of non-pharmacological care. In conclusion, the midwives’ experiences were that both pharmacological and non-pharmacological techniques were used for all labouring women and they had relaxing and calming effects on some women, resulting to them giving birth with ease, although for some they were not effective. In addition, the pharmacological interventions caused drowsiness to some women and babies. The findings will provide evidence-based information to the Free State Department of Health in order to assist policymakers and stakeholders in initiating and developing appropriate policies, guidelines, and interventions that can improve labour pain management. The Free State Department of Health should consider using other opioids and non-opioids in managing labour pain to broaden the scope of pain relief methods available to the midwives. , Thesis (MPH) -- Faculty of Health Sciences, 2019
- Full Text:
Exploring how millennials prepare their content for social media: a narrative study of online users
- Authors: Coleman, Robyn-Ann
- Date: 2019
- Subjects: Generation Y
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/17542 , vital:41089
- Description: Millennials, (born between 1982 to 1996) referred to as ‘techno savvy’, are the largest and most highly educated generational cohort in this time. Introduced to technology early on in their lives has lead to a prolific use of social media. As possible future leaders, millennials also have the highest employment turnaround. The increased turnaround is because millennials are always on the lookout for better opportunities and purpose to meet their need for accelerated growth together with their need to belong. Social media platforms have the propensity to provide instantaneous and gratifying rewards, through various ways including self disclosure online. As millennials are seeking purpose and reward, communicating on a social media platform is way more rewarding than attempting to communicate. With the arena of face to face communication shifting to online communication this is becoming more amplified. This research study explored how millennials prepared to portray their content on Facebook and Instagram. A biographical narrative approach effectively acquired 15 individual millennials in-depth co-constructed narratives on how they prepare their online social media, and analysed through contexualising the co-constructed into a re-storied narrative with Connelly & Clandinin’s (2009) narrative analysis approach. Goffman’s dramaturgical approach, a conceptual framework based on micro social interaction was used to obtain insight into millennials online portrayal. The findings revealed that all of the participants utilised one or more of the following dramaturgical metaphors to portray themselves; a) they utilised props and /or filters to set the environment and filter their image online, b) they managed their impressions by being intentional in the selection of their images, and c) by intentionally selecting images or messages that portray roles their audience would affirm them for. The findings of this study highlights and provides insight in millennials’ preoccupation, distraction and portrayal online, which feeds into their need to be seen in a positive light and be affirmed. These findings provide social workers with new insight and perspective into millennials unspoken rich indepth narratives when millennials portray themselves online
- Full Text:
- Authors: Coleman, Robyn-Ann
- Date: 2019
- Subjects: Generation Y
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/17542 , vital:41089
- Description: Millennials, (born between 1982 to 1996) referred to as ‘techno savvy’, are the largest and most highly educated generational cohort in this time. Introduced to technology early on in their lives has lead to a prolific use of social media. As possible future leaders, millennials also have the highest employment turnaround. The increased turnaround is because millennials are always on the lookout for better opportunities and purpose to meet their need for accelerated growth together with their need to belong. Social media platforms have the propensity to provide instantaneous and gratifying rewards, through various ways including self disclosure online. As millennials are seeking purpose and reward, communicating on a social media platform is way more rewarding than attempting to communicate. With the arena of face to face communication shifting to online communication this is becoming more amplified. This research study explored how millennials prepared to portray their content on Facebook and Instagram. A biographical narrative approach effectively acquired 15 individual millennials in-depth co-constructed narratives on how they prepare their online social media, and analysed through contexualising the co-constructed into a re-storied narrative with Connelly & Clandinin’s (2009) narrative analysis approach. Goffman’s dramaturgical approach, a conceptual framework based on micro social interaction was used to obtain insight into millennials online portrayal. The findings revealed that all of the participants utilised one or more of the following dramaturgical metaphors to portray themselves; a) they utilised props and /or filters to set the environment and filter their image online, b) they managed their impressions by being intentional in the selection of their images, and c) by intentionally selecting images or messages that portray roles their audience would affirm them for. The findings of this study highlights and provides insight in millennials’ preoccupation, distraction and portrayal online, which feeds into their need to be seen in a positive light and be affirmed. These findings provide social workers with new insight and perspective into millennials unspoken rich indepth narratives when millennials portray themselves online
- Full Text:
Exploring the interplay of sociolinguistic factors in the teaching of esl at secondary school level in Zimbabwe
- Authors: Jhamba , Duren
- Date: 2019
- Subjects: Sociolinguistics
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15770 , vital:40522
- Description: The researcher noted that earlier second language teaching models tended to treat language as an artefact to be scrutinised and adhered to with grammatical precision. This tended to reduce all language learning to the mere acquisition of grammatical skills. However, since all language behaviour is embedded in sociocultural and contextual frameworks, all teaching should provide cross-cultural awareness of that complexity as well as of the internal variation within language. Therefore, the research explored the interplay of sociolinguistic factors in the teaching of English in Zimbabwe. The Mixed Methods design; a combination of the descriptive survey and the case study was adopted. The questionnaire, interview, observation and document analysis methods were used to collect both qualitative and quantitative data to assess the role of sociolinguistic factors in second language teaching pedagogy. A combination of convenient sampling and stratified random sampling was used to come up with a sample representative of the school categories and the gender of teachers in the 38 secondary schools in Gweru District. The data for the research was collected from a random sample of 50 teachers. The data analysis supported the need for a reconceptualisation of ESL teaching in Zimbabwe. Notably, language teaching tended to be exam-centric, unimaginative and not well linked to the needs of the learners in the communicative environment outside the school. This confirmed the initial observation that the secondary school graduates generally lacked sociolinguistic competence skills. The teachers were, however generally not motivated to include culture and sociolinguistics in their teaching. The research therefore recommended a revisit of the 7 | Page allowance for the interplay of sociolinguistic factors at all the planning stages of the ESL curriculum; the status, corpus and acquisition stages.
- Full Text:
- Authors: Jhamba , Duren
- Date: 2019
- Subjects: Sociolinguistics
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15770 , vital:40522
- Description: The researcher noted that earlier second language teaching models tended to treat language as an artefact to be scrutinised and adhered to with grammatical precision. This tended to reduce all language learning to the mere acquisition of grammatical skills. However, since all language behaviour is embedded in sociocultural and contextual frameworks, all teaching should provide cross-cultural awareness of that complexity as well as of the internal variation within language. Therefore, the research explored the interplay of sociolinguistic factors in the teaching of English in Zimbabwe. The Mixed Methods design; a combination of the descriptive survey and the case study was adopted. The questionnaire, interview, observation and document analysis methods were used to collect both qualitative and quantitative data to assess the role of sociolinguistic factors in second language teaching pedagogy. A combination of convenient sampling and stratified random sampling was used to come up with a sample representative of the school categories and the gender of teachers in the 38 secondary schools in Gweru District. The data for the research was collected from a random sample of 50 teachers. The data analysis supported the need for a reconceptualisation of ESL teaching in Zimbabwe. Notably, language teaching tended to be exam-centric, unimaginative and not well linked to the needs of the learners in the communicative environment outside the school. This confirmed the initial observation that the secondary school graduates generally lacked sociolinguistic competence skills. The teachers were, however generally not motivated to include culture and sociolinguistics in their teaching. The research therefore recommended a revisit of the 7 | Page allowance for the interplay of sociolinguistic factors at all the planning stages of the ESL curriculum; the status, corpus and acquisition stages.
- Full Text:
Exploring the underpinning factors that contribute to the involvement of children in criminal behaviour: A case of King William’s Town”
- Authors: Mbomvana, Anelisa
- Date: 2019
- Subjects: juvenile delinquency Parent and child
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/16220 , vital:40700
- Description: Crime, in its daily occurrence, makes everyone a victim; whether of primary, secondary or of tertiary victimization, which has connotations of either direct or indirect victimization. It affects everyone and every sector. The involvement and the perpetration of crime by children, owing to a number of social dynamics, has serious implications and repercussions on children and how they later on conduct themselves. The aim of the study was to explore the factors that underpin criminal behaviour in children. The qualitative research method was adopted in the study and it informed the data collection and analysis processes of the study. Interviews and a focus group discussions were, therefore used to gain insight into the experiences of the participants. Through the use of purposive sampling, thirty five (35) participants comprising key and focus participants who were children in conflict with the law, their parents, the community members, social workers, probation officers and youth care workers from a certain Child and Youth Care Rehabilitation centre in King William’s Town were selected. The findings revealed that it was a variety of multi-factorial components that influenced criminal behaviour in children, and amongst those were individual, family, community and school factors. However, it was found that the impact of these detrimental factors identified was not comparable to the impact of the parent in the life of a child. The propensity and the extent to which these factors can affect a child was found as less probable where strong relationships were maintained between the parents and their children. This further implies that nurture was found to be very pivotal, as the role of the parents and of family support were found to be the most significant in children. Single parenting, father absence, undisclosed paternal identities, parental ignorance, poor parenting, and divorce were issues that emerged and were indicated in the study to be potentially harmful in the lives of children. A strong correlation was found between ignorant parenting and ill behavior in children as it was also found that parental conduct was very important as it defined the family’s wellbeing. A corresponding relationship was also established between dropping out of school and crime due to the fact that an overwhelming number of child offenders who participated in the study had dropped out of school. It was v further concluded that in spite of the social work profession’s adoption of the developmental approach, the propensity and timing the interventions took place was compared to those of the residual approach wherein the welfare system intervened as a measure of last resort. The study recommends that emphasis needs to be stressed on family based programmes in order to protect and secure the spontaneous growth of children
- Full Text:
- Authors: Mbomvana, Anelisa
- Date: 2019
- Subjects: juvenile delinquency Parent and child
- Language: English
- Type: Thesis , Masters , MSW
- Identifier: http://hdl.handle.net/10353/16220 , vital:40700
- Description: Crime, in its daily occurrence, makes everyone a victim; whether of primary, secondary or of tertiary victimization, which has connotations of either direct or indirect victimization. It affects everyone and every sector. The involvement and the perpetration of crime by children, owing to a number of social dynamics, has serious implications and repercussions on children and how they later on conduct themselves. The aim of the study was to explore the factors that underpin criminal behaviour in children. The qualitative research method was adopted in the study and it informed the data collection and analysis processes of the study. Interviews and a focus group discussions were, therefore used to gain insight into the experiences of the participants. Through the use of purposive sampling, thirty five (35) participants comprising key and focus participants who were children in conflict with the law, their parents, the community members, social workers, probation officers and youth care workers from a certain Child and Youth Care Rehabilitation centre in King William’s Town were selected. The findings revealed that it was a variety of multi-factorial components that influenced criminal behaviour in children, and amongst those were individual, family, community and school factors. However, it was found that the impact of these detrimental factors identified was not comparable to the impact of the parent in the life of a child. The propensity and the extent to which these factors can affect a child was found as less probable where strong relationships were maintained between the parents and their children. This further implies that nurture was found to be very pivotal, as the role of the parents and of family support were found to be the most significant in children. Single parenting, father absence, undisclosed paternal identities, parental ignorance, poor parenting, and divorce were issues that emerged and were indicated in the study to be potentially harmful in the lives of children. A strong correlation was found between ignorant parenting and ill behavior in children as it was also found that parental conduct was very important as it defined the family’s wellbeing. A corresponding relationship was also established between dropping out of school and crime due to the fact that an overwhelming number of child offenders who participated in the study had dropped out of school. It was v further concluded that in spite of the social work profession’s adoption of the developmental approach, the propensity and timing the interventions took place was compared to those of the residual approach wherein the welfare system intervened as a measure of last resort. The study recommends that emphasis needs to be stressed on family based programmes in order to protect and secure the spontaneous growth of children
- Full Text:
Extraction, isolation and characterization of oleanolic acid and its analogues from Syzygium aromaticum (cloves) and evaluation of their biological activities
- Authors: khwaza, Vuyolwethu
- Date: 2019
- Subjects: Antibacterial agents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/19076 , vital:39882
- Description: Pathogenic microorganisms have serious impact on people's lives. Every year, millions of people around the world die of bacterial infections. Resistance to common antibacterial drugs has proven to be a challenging problem in control of bacterial infections. In an attempt to develop an effective and affordable treatment for bacterial infections, oleanolic acid isolated from syzygium aromaticum conjugates incorporating other pharmaceutical scaffolds such as chloroquine derivatives, curcumin, and ergocalciferol etc have been developed. Based on the previous successes of testing combination of antimicrobial drugs and pharmaceutical drugs which appeared to be the promising strategy to overcome treatment failure; a series of hybrid compounds containing oleanolic acid and other pharmaceutical scaffolds were synthesized. 4- Aminoquinoline derivatives were first hybridized with selected organic compounds to form a class of hybrid compounds containing either amide bond or ester bond as a linker between the precursor molecules. Analogues/hybrid compounds can overcome the disadvantages of combination therapy such as drug-drug interaction. The structural effects of this type of conjugation of oleanolic acid and other pharmaceutical scaffolds were characterised by FTIR, Mass Spec and NMR spectroscopy. These compounds were studied along with the monosubstituted oleanolic acid analogues and the organic components in order to compare the effects of the substitution on their biological response.‖ All the synthesized analogues were tested against 11 bacterial strains on both Gram-positive and Gram-negative bacteria. The synthesized compounds showed selectivity and higher activity against Enterococcus faecalis (EF), Klebsiella oxytoca (KO), Escherischia coli (EC), Staphylococcus aureous (SA), Proteus vulgaris (PV) and Bacillus subtilis (BS) with MIC values; ranging between of 1.25 mg/mL to 0.072 mg/mL
- Full Text:
- Authors: khwaza, Vuyolwethu
- Date: 2019
- Subjects: Antibacterial agents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/19076 , vital:39882
- Description: Pathogenic microorganisms have serious impact on people's lives. Every year, millions of people around the world die of bacterial infections. Resistance to common antibacterial drugs has proven to be a challenging problem in control of bacterial infections. In an attempt to develop an effective and affordable treatment for bacterial infections, oleanolic acid isolated from syzygium aromaticum conjugates incorporating other pharmaceutical scaffolds such as chloroquine derivatives, curcumin, and ergocalciferol etc have been developed. Based on the previous successes of testing combination of antimicrobial drugs and pharmaceutical drugs which appeared to be the promising strategy to overcome treatment failure; a series of hybrid compounds containing oleanolic acid and other pharmaceutical scaffolds were synthesized. 4- Aminoquinoline derivatives were first hybridized with selected organic compounds to form a class of hybrid compounds containing either amide bond or ester bond as a linker between the precursor molecules. Analogues/hybrid compounds can overcome the disadvantages of combination therapy such as drug-drug interaction. The structural effects of this type of conjugation of oleanolic acid and other pharmaceutical scaffolds were characterised by FTIR, Mass Spec and NMR spectroscopy. These compounds were studied along with the monosubstituted oleanolic acid analogues and the organic components in order to compare the effects of the substitution on their biological response.‖ All the synthesized analogues were tested against 11 bacterial strains on both Gram-positive and Gram-negative bacteria. The synthesized compounds showed selectivity and higher activity against Enterococcus faecalis (EF), Klebsiella oxytoca (KO), Escherischia coli (EC), Staphylococcus aureous (SA), Proteus vulgaris (PV) and Bacillus subtilis (BS) with MIC values; ranging between of 1.25 mg/mL to 0.072 mg/mL
- Full Text:
Factors affecting female condom use in Buffalo City Metropolitan, Eastern Cape, South Africa
- Authors: Bunu, Nosipho
- Date: 2019
- Subjects: Condom use -- South Africa Sexually transmitted diseases
- Language: English
- Type: Thesis , Masters , M Cur
- Identifier: http://hdl.handle.net/10353/12959 , vital:39411
- Description: Introduction: The female condom was introduced so many years after the male condom was introduced as an additional intervention to prevent sexually transmitted diseases and HIV/AIDS. The purpose of the study was to explore and describe the factors affecting female condom use in Buffalo City Metropolitan, Eastern Cape. Method: Quantitative descriptive and contextual research designs were used to enable the researcher to gain knowledge and insights on female condom use. The population of the study was sexually active women between ages of 15-49 years, living in Reeston community of Buffalo City Municipality in the Eastern Cape Province. Convenient sampling was used to recruit the respondents with 599-sample size and data was collected using questionnaires. Ethical considerations were considered throughout the study. Data was analysed using Statistical Package for the Social Sciences (SPSS version 22) and summarised using tables, graphs and descriptive statistics. Results: The findings of the study were minimal use of female condom because of poor marketing strategies towards female condoms despite the government intervention. The attitude of sexually active women towards female condom was positive, but minimal knowledge, inaccessibility and unavailability of female condoms hinder its use. Conclusion and Recommendation: The study recommended health education through campaigns and counselling about female condom use and their benefits to all age groups of women who are sexually active. The government and stakeholders should promote the condom uptake, accessibility and availability in every public place. Department of Health, Education should have empowered the community at large on how to promote female condom use and improve the distribution of both male/ female condoms to schools and public place.
- Full Text:
- Authors: Bunu, Nosipho
- Date: 2019
- Subjects: Condom use -- South Africa Sexually transmitted diseases
- Language: English
- Type: Thesis , Masters , M Cur
- Identifier: http://hdl.handle.net/10353/12959 , vital:39411
- Description: Introduction: The female condom was introduced so many years after the male condom was introduced as an additional intervention to prevent sexually transmitted diseases and HIV/AIDS. The purpose of the study was to explore and describe the factors affecting female condom use in Buffalo City Metropolitan, Eastern Cape. Method: Quantitative descriptive and contextual research designs were used to enable the researcher to gain knowledge and insights on female condom use. The population of the study was sexually active women between ages of 15-49 years, living in Reeston community of Buffalo City Municipality in the Eastern Cape Province. Convenient sampling was used to recruit the respondents with 599-sample size and data was collected using questionnaires. Ethical considerations were considered throughout the study. Data was analysed using Statistical Package for the Social Sciences (SPSS version 22) and summarised using tables, graphs and descriptive statistics. Results: The findings of the study were minimal use of female condom because of poor marketing strategies towards female condoms despite the government intervention. The attitude of sexually active women towards female condom was positive, but minimal knowledge, inaccessibility and unavailability of female condoms hinder its use. Conclusion and Recommendation: The study recommended health education through campaigns and counselling about female condom use and their benefits to all age groups of women who are sexually active. The government and stakeholders should promote the condom uptake, accessibility and availability in every public place. Department of Health, Education should have empowered the community at large on how to promote female condom use and improve the distribution of both male/ female condoms to schools and public place.
- Full Text:
Factors affecting grade 6 learners’ performance in Mathematics in the East London Education District
- Authors: Kwateng, Jesse
- Date: 2019
- Subjects: Mathematics -- Study and teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/15935 , vital:40565
- Description: Mathematics is one of the most important subjects rooted in many fields of study but has also been one of the greatest challenges for learners in every country, most especially in the Republic of South Africa. There have been attempts to curb the challenges that have bedeviled the success of mathematics education by governments, the Department of Education and many other stakeholders who have not enjoyed positive results in mathematics in the district of East London. Therefore, this study examines factors affecting grade 6 learners’ performance in mathematics in selected schools within the East London education district. There were three hundred and forty-five (345) grade 6 learners and 12 teachers drawn through a parallel mixed methods sampling. Stratified random sampling was used to select participants for the quantitative strand while purposive sampling was used for selecting 60 learners and 12 teachers for the qualitative strand. The researcher used the mixed method research approach. The instruments used in collecting data were structured questionnaire and semi-structured interviews to elicit information from grade 6 learners and teachers. Information gathered from the learners and teachers included: biographical information, factors affecting teaching and learning of mathematics and suggestions. The quantitative data were analyzed by using descriptive statistics of percentage from the responses of learners. The quantitative analysis was done by using excel 2010 to formulate data into percentages and qualitatively, voice recordings from the respondents semi-structured interviews were reduced through thematic analysis. The findings of the study revealed that some of the qualified mathematics educators preferred to work in another profession. Quality of teaching and learning were less effective due to overcrowded classrooms, inadequate teaching and learning resources, poor monitoring of educators, some of the learners were not adequately motivated and many others. For performance in mathematics to improve in the primary schools in East London Education District, the study made some recommendations from the findings to the stakeholders in education such as the Department of Education, principals, the government, educators and learners. These recommendations might virtually assist in finding lasting solutions to grade 6 learners with mathematics challenges.
- Full Text:
Factors affecting grade 6 learners’ performance in Mathematics in the East London Education District
- Authors: Kwateng, Jesse
- Date: 2019
- Subjects: Mathematics -- Study and teaching
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/15935 , vital:40565
- Description: Mathematics is one of the most important subjects rooted in many fields of study but has also been one of the greatest challenges for learners in every country, most especially in the Republic of South Africa. There have been attempts to curb the challenges that have bedeviled the success of mathematics education by governments, the Department of Education and many other stakeholders who have not enjoyed positive results in mathematics in the district of East London. Therefore, this study examines factors affecting grade 6 learners’ performance in mathematics in selected schools within the East London education district. There were three hundred and forty-five (345) grade 6 learners and 12 teachers drawn through a parallel mixed methods sampling. Stratified random sampling was used to select participants for the quantitative strand while purposive sampling was used for selecting 60 learners and 12 teachers for the qualitative strand. The researcher used the mixed method research approach. The instruments used in collecting data were structured questionnaire and semi-structured interviews to elicit information from grade 6 learners and teachers. Information gathered from the learners and teachers included: biographical information, factors affecting teaching and learning of mathematics and suggestions. The quantitative data were analyzed by using descriptive statistics of percentage from the responses of learners. The quantitative analysis was done by using excel 2010 to formulate data into percentages and qualitatively, voice recordings from the respondents semi-structured interviews were reduced through thematic analysis. The findings of the study revealed that some of the qualified mathematics educators preferred to work in another profession. Quality of teaching and learning were less effective due to overcrowded classrooms, inadequate teaching and learning resources, poor monitoring of educators, some of the learners were not adequately motivated and many others. For performance in mathematics to improve in the primary schools in East London Education District, the study made some recommendations from the findings to the stakeholders in education such as the Department of Education, principals, the government, educators and learners. These recommendations might virtually assist in finding lasting solutions to grade 6 learners with mathematics challenges.
- Full Text:
Factors affecting grade 6 learners’ performance in mathematics in the East London Education District
- Authors: Kwateng, Jesse
- Date: 2019
- Subjects: Mathematics -- Study and teaching (Primary) Mathematics teachers Education, Primary
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/12837 , vital:39383
- Description: Mathematics is one of the most important subjects rooted in many fields of study but has also been one of the greatest challenges for learners in every country, most especially in the Republic of South Africa. There have been attempts to curb the challenges that have bedeviled the success of mathematics education by governments, the Department of Education and many other stakeholders who have not enjoyed positive results in mathematics in the district of East London. Therefore, this study examines factors affecting grade 6 learners’ performance in mathematics in selected schools within the East London education district. There were three hundred and fortyfive (345) grade 6 learners and 12 teachers drawn through a parallel mixed methods sampling. Stratified random sampling was used to select participants for the quantitative strand while purposive sampling was used for selecting 60 learners and 12 teachers for the qualitative strand. The researcher used the mixed method research approach. The instruments used in collecting data were structured questionnaire and semi-structured interviews to elicit information from grade 6 learners and teachers. Information gathered from the learners and teachers included: biographical information, factors affecting teaching and learning of mathematics and suggestions. The quantitative data were analyzed by using descriptive statistics of percentage from the responses of learners. The quantitative analysis was done by using excel 2010 to formulate data into percentages and qualitatively, voice recordings from the respondents semi-structured interviews were reduced through thematic analysis. The findings of the study revealed that some of the qualified mathematics educators preferred to work in another profession. Quality of teaching and learning were less effective due to overcrowded classrooms, inadequate teaching and learning resources, poor monitoring of educators, some of the learners were not adequately motivated and many others. For performance in mathematics to improve in the primary schools in East London Education District, the study made some recommendations from the findings to the stakeholders in education such as the Department of Education, principals, the government, educators and learners. These recommendations might virtually assist in finding lasting solutions to grade 6 learners with mathematics challenges.
- Full Text:
Factors affecting grade 6 learners’ performance in mathematics in the East London Education District
- Authors: Kwateng, Jesse
- Date: 2019
- Subjects: Mathematics -- Study and teaching (Primary) Mathematics teachers Education, Primary
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/12837 , vital:39383
- Description: Mathematics is one of the most important subjects rooted in many fields of study but has also been one of the greatest challenges for learners in every country, most especially in the Republic of South Africa. There have been attempts to curb the challenges that have bedeviled the success of mathematics education by governments, the Department of Education and many other stakeholders who have not enjoyed positive results in mathematics in the district of East London. Therefore, this study examines factors affecting grade 6 learners’ performance in mathematics in selected schools within the East London education district. There were three hundred and fortyfive (345) grade 6 learners and 12 teachers drawn through a parallel mixed methods sampling. Stratified random sampling was used to select participants for the quantitative strand while purposive sampling was used for selecting 60 learners and 12 teachers for the qualitative strand. The researcher used the mixed method research approach. The instruments used in collecting data were structured questionnaire and semi-structured interviews to elicit information from grade 6 learners and teachers. Information gathered from the learners and teachers included: biographical information, factors affecting teaching and learning of mathematics and suggestions. The quantitative data were analyzed by using descriptive statistics of percentage from the responses of learners. The quantitative analysis was done by using excel 2010 to formulate data into percentages and qualitatively, voice recordings from the respondents semi-structured interviews were reduced through thematic analysis. The findings of the study revealed that some of the qualified mathematics educators preferred to work in another profession. Quality of teaching and learning were less effective due to overcrowded classrooms, inadequate teaching and learning resources, poor monitoring of educators, some of the learners were not adequately motivated and many others. For performance in mathematics to improve in the primary schools in East London Education District, the study made some recommendations from the findings to the stakeholders in education such as the Department of Education, principals, the government, educators and learners. These recommendations might virtually assist in finding lasting solutions to grade 6 learners with mathematics challenges.
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Factors affecting the learners’ reading culture in English First Additional Language at Grade 5. A case of three primary schools in the Cookhouse and Somerset East area.
- Authors: Snyers, Jonathan Marsel
- Date: 2019
- Subjects: Books and reading English language -- Rhetoric
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/16342 , vital:40711
- Description: This study investigated the factors affecting the learners’ reading culture in English First Additional Language at grade 5 level in the Cookhouse and Somerset area. The sample consisted of 3 teachers, 3 principals, 18 learners and 3 SGB chairpersons from three different schools. The study focused on three primary schools in the Blue Crane District, which were selected through a purposive sampling technique. Qualitative research was chosen as the research method with a case study as the research design. Data collection instruments consisted of unstandardized in-depth interviews, focus group discussions and documents. Interviews were conducted with the teachers, principals and the chairpersons of the respective schools. The focus group discussions were conducted with learners. In this study, the researcher has analysed data systematically whereby he built through recording procedures during interviews and focus group discussions. The findings highlighted factors, which cause learners’ reading problems. The factors include various physical factors, emotional factors, and little attention to reading skills, lack of motivation, insufficient reading time and material. Educators were of the view that repeated curriculum changes within a short period of time without proper training of educators has an effect on learners’ reading performance. The study revealed that reading is adversely affected by the poor learning conditions in which learners find themselves in because there was a strong relationship between socio-economic factors and reading ability. On that account, the implication is that reading will not improve. The study recommends that the Department of Education pay more attention to pre-service and in-service training of educators so that educators are more knowledgeable in all reading components.
- Full Text:
- Authors: Snyers, Jonathan Marsel
- Date: 2019
- Subjects: Books and reading English language -- Rhetoric
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10353/16342 , vital:40711
- Description: This study investigated the factors affecting the learners’ reading culture in English First Additional Language at grade 5 level in the Cookhouse and Somerset area. The sample consisted of 3 teachers, 3 principals, 18 learners and 3 SGB chairpersons from three different schools. The study focused on three primary schools in the Blue Crane District, which were selected through a purposive sampling technique. Qualitative research was chosen as the research method with a case study as the research design. Data collection instruments consisted of unstandardized in-depth interviews, focus group discussions and documents. Interviews were conducted with the teachers, principals and the chairpersons of the respective schools. The focus group discussions were conducted with learners. In this study, the researcher has analysed data systematically whereby he built through recording procedures during interviews and focus group discussions. The findings highlighted factors, which cause learners’ reading problems. The factors include various physical factors, emotional factors, and little attention to reading skills, lack of motivation, insufficient reading time and material. Educators were of the view that repeated curriculum changes within a short period of time without proper training of educators has an effect on learners’ reading performance. The study revealed that reading is adversely affected by the poor learning conditions in which learners find themselves in because there was a strong relationship between socio-economic factors and reading ability. On that account, the implication is that reading will not improve. The study recommends that the Department of Education pay more attention to pre-service and in-service training of educators so that educators are more knowledgeable in all reading components.
- Full Text:
Factors to improve data quality of electronic medical records
- Authors: Makeleni, Noloyiso Anele
- Date: 2019
- Subjects: Electronic records , Medical records -- Management , Medical records -- Data processing
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19881 , vital:43618
- Description: Electronic Medical Record (EMR) systems have been identified as having the potential to improve health care and allow the health care sector to reap a number of benefits when implemented successfully. These benefits include enabling quick and easy access to patient files and also reducing the problem of misplaced or lost patient files. Such EMRs allow for patient records to be up to date, provided that health care practitioners capture standard and consistent data in the relevant fields. In Africa, there are only a few countries that have successfully implemented EMR systems due to social and technological challenges. Social factors include lack of computer skilled health workers, lack of adequate training, physician’s resistance to shift from using paper records to electronic records, either due to complex systems or the fear of being replaced by the systems. On the other hand, the technological factors include lack of Information Technology (IT) and clinical resources, lack of internet access, financial barriers to purchase the necessary technological hardware and implementation costs. A few South African health care institutions have implemented EMR systems, however, most of the public health care facilities still make use of a manual system to capture patient information. In the case where public health care facilities do have an EMR system implemented, there are problems with the consistency of the data that is captured. The inconsistency is caused by the different understandings that the health care professionals have regarding the importance of capturing the necessary information that is collected at various points in health care institutions, thus affecting data quality. For the successful implementation and use of EMR systems, everything within the health care organisation should be integrated. In other words, the steering committee and workgroup, the equipment, the product, the processes, the system and the facility design and construction should be incorporated to work together. The common problems identified in literature regarding data quality in EMRs include misspelled words, inconsistent word strings, inaccurate information entered on the record and incompleteness of the record. These problems lead to poor quality information, lack of accessibility of the record, poorly organised notes and inaccurate information about the patient. The South African strategy aims to implement a National Health Insurance (NHI) which will provide citizens with equitable access to health care. For the successful implementation of the NHI strategy, South African health care sectors should address the barriers which were identified and learn from other African countries that have successfully implemented EMR systems and had positive outcomes. Therefore, this study investigates how data quality can be improved on electronic medical records in public health care in South Africa? The qualitative research methodology approach was used for this study. Interviews were conducted with eight health care professionals at Klerksdorp, in the North West province to obtain data regarding the factors they would deem important for the improvement of data quality in EMRs. The Data Quality Framework (DQF) was applied in this study and six dimensions were identified as the factors to improve data quality. These dimensions include completeness, accuracy, consistency, conformity, timeliness, and integrity. From the analysis of the interview responses, it was discovered that there were, in fact, data quality issues experienced at the public health care facilities of South Africa. A need was identified for the use of data quality assessment tools and solutions to address the data quality issues or challenges that health care practitioners are faced with during their daily jobs. Seven barriers were also identified as having an impact on the successful implementation of EMRs at health care institutions. These barriers, together with the data quality issues, influence the successful use of EMRs and should not be overlooked. From these barriers the study developed seven Critical Success Factors which can be used by the National Department of Health to improve the quality of EMRs. , Thesis (MCom) -- Faculty of Management and Commerce, 2019
- Full Text:
- Authors: Makeleni, Noloyiso Anele
- Date: 2019
- Subjects: Electronic records , Medical records -- Management , Medical records -- Data processing
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19881 , vital:43618
- Description: Electronic Medical Record (EMR) systems have been identified as having the potential to improve health care and allow the health care sector to reap a number of benefits when implemented successfully. These benefits include enabling quick and easy access to patient files and also reducing the problem of misplaced or lost patient files. Such EMRs allow for patient records to be up to date, provided that health care practitioners capture standard and consistent data in the relevant fields. In Africa, there are only a few countries that have successfully implemented EMR systems due to social and technological challenges. Social factors include lack of computer skilled health workers, lack of adequate training, physician’s resistance to shift from using paper records to electronic records, either due to complex systems or the fear of being replaced by the systems. On the other hand, the technological factors include lack of Information Technology (IT) and clinical resources, lack of internet access, financial barriers to purchase the necessary technological hardware and implementation costs. A few South African health care institutions have implemented EMR systems, however, most of the public health care facilities still make use of a manual system to capture patient information. In the case where public health care facilities do have an EMR system implemented, there are problems with the consistency of the data that is captured. The inconsistency is caused by the different understandings that the health care professionals have regarding the importance of capturing the necessary information that is collected at various points in health care institutions, thus affecting data quality. For the successful implementation and use of EMR systems, everything within the health care organisation should be integrated. In other words, the steering committee and workgroup, the equipment, the product, the processes, the system and the facility design and construction should be incorporated to work together. The common problems identified in literature regarding data quality in EMRs include misspelled words, inconsistent word strings, inaccurate information entered on the record and incompleteness of the record. These problems lead to poor quality information, lack of accessibility of the record, poorly organised notes and inaccurate information about the patient. The South African strategy aims to implement a National Health Insurance (NHI) which will provide citizens with equitable access to health care. For the successful implementation of the NHI strategy, South African health care sectors should address the barriers which were identified and learn from other African countries that have successfully implemented EMR systems and had positive outcomes. Therefore, this study investigates how data quality can be improved on electronic medical records in public health care in South Africa? The qualitative research methodology approach was used for this study. Interviews were conducted with eight health care professionals at Klerksdorp, in the North West province to obtain data regarding the factors they would deem important for the improvement of data quality in EMRs. The Data Quality Framework (DQF) was applied in this study and six dimensions were identified as the factors to improve data quality. These dimensions include completeness, accuracy, consistency, conformity, timeliness, and integrity. From the analysis of the interview responses, it was discovered that there were, in fact, data quality issues experienced at the public health care facilities of South Africa. A need was identified for the use of data quality assessment tools and solutions to address the data quality issues or challenges that health care practitioners are faced with during their daily jobs. Seven barriers were also identified as having an impact on the successful implementation of EMRs at health care institutions. These barriers, together with the data quality issues, influence the successful use of EMRs and should not be overlooked. From these barriers the study developed seven Critical Success Factors which can be used by the National Department of Health to improve the quality of EMRs. , Thesis (MCom) -- Faculty of Management and Commerce, 2019
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Financial development, income inequality and poverty: case of a selected SADC countries
- Authors: Leve, Samkele
- Date: 2019
- Subjects: Finance Economic development Income distribution
- Language: English
- Type: Thesis , Masters , MCom (Economics)
- Identifier: http://hdl.handle.net/10353/16918 , vital:40785
- Description: The financial sector plays a pivotal role in an economy of a country; hence the importance of financial development cannot be underestimated. Financial development is widely regarded as another conduit through which income inequality and poverty can be alleviated, however both theoretical and empirical literature does not reach consensus on the effect of financial development on income inequality and poverty. Against this background, the study empirically examines the effect of financial development on income inequality and poverty in selected Southern African Development Community (SADC) countries, employing the Generalised Method of Moments (GMM) technique for the period 1980 to 2011. Based on the inequalitydecreasing and Mckinnon Conduit effect, two models which link financial sector development and inequality and financial sector development and poverty were estimated using five different dimensions of financial development. Empirical results revealed that financial development overall does have an impact on income inequality and poverty in the selected SADC countries. An interesting observation from the empirical results is that the actual dimension of financial development plays a significant role in determining the relationship between financial development, income inequality and poverty in the SADC region. The impact of financial depth on poverty is not obvious in the study, depending on the variable used. On the relationship between financial system stability, income inequality and poverty, results reveal that a stable financial system is beneficial to the poor. Financial efficiency does not appear to have a significant role in reducing income inequality and poverty in the selected SADC countries. Overall, the findings from the study indicate that financial access or financial inclusion and financial stability is what reduces poverty instead of mere financial sector development at a broader level.
- Full Text:
- Authors: Leve, Samkele
- Date: 2019
- Subjects: Finance Economic development Income distribution
- Language: English
- Type: Thesis , Masters , MCom (Economics)
- Identifier: http://hdl.handle.net/10353/16918 , vital:40785
- Description: The financial sector plays a pivotal role in an economy of a country; hence the importance of financial development cannot be underestimated. Financial development is widely regarded as another conduit through which income inequality and poverty can be alleviated, however both theoretical and empirical literature does not reach consensus on the effect of financial development on income inequality and poverty. Against this background, the study empirically examines the effect of financial development on income inequality and poverty in selected Southern African Development Community (SADC) countries, employing the Generalised Method of Moments (GMM) technique for the period 1980 to 2011. Based on the inequalitydecreasing and Mckinnon Conduit effect, two models which link financial sector development and inequality and financial sector development and poverty were estimated using five different dimensions of financial development. Empirical results revealed that financial development overall does have an impact on income inequality and poverty in the selected SADC countries. An interesting observation from the empirical results is that the actual dimension of financial development plays a significant role in determining the relationship between financial development, income inequality and poverty in the SADC region. The impact of financial depth on poverty is not obvious in the study, depending on the variable used. On the relationship between financial system stability, income inequality and poverty, results reveal that a stable financial system is beneficial to the poor. Financial efficiency does not appear to have a significant role in reducing income inequality and poverty in the selected SADC countries. Overall, the findings from the study indicate that financial access or financial inclusion and financial stability is what reduces poverty instead of mere financial sector development at a broader level.
- Full Text:
Gender differences and online shopping decisions of consumers in South Africa
- Authors: Mqulo, Thandokazi
- Date: 2019
- Subjects: Electronic commerce Consumer behavior
- Language: English
- Type: Thesis , Masters , MCom (Business Management)
- Identifier: http://hdl.handle.net/10353/16952 , vital:40788
- Description: Online shopping has emerged as one of the most convenient ways of shopping in both emerging and advanced economies. In South Africa, it has received much attention due to its unique way of satisfying both the rural and urban populations. Online shopping is growing and carries great potential of contributing to a country and/or local areas’ economy and development. The primary aim of the study was to analyse the differences of online shopping between males and females in South Africa. The main objective of this study is to determine if there are significant differences between male and female online shoppers in South Africa. The study is motivated by the literature gap that exists on the online shopping discourse, in that there are few published studies on the online shopping differences between males and females in South Africa. Therefore, there is a lack of information on the importance of online shopping activities on promoting convenience for shoppers in these busy times that people live in. A quantitative approach was used to analyse the data that were collected using a questionnaire. Data was collected from a sample of 377 people who are online shoppers in the Eastern Cape, South Africa. Simple random sampling was utilised for this study. The results showed that there is a significant difference between males and females online shopping patterns as determined by specific variables mentioned in this study. Their study had findings on research hypothesis of attitude towards online shopping, the difference in the usefulness of media on online websites, perceived ease of use of online websites, intrinsic enjoyment, perceived risk and trust towards online shopping. The implications of this study unpack and provides discussion on empirical evidence drawn from the study’s statistical results. The implications are presented in a way which explains how the results of this study affect theoretical dimensions of the studied phenomenon, online shoppers and the retail industry. There is a need for more research in this environment and this research study will stimulate further studies in the online shopping environment. Future research may focus on the development of a customer satisfaction scale that uses service quality items in the retail industry, to gather data about what satisfies customers in the retail context.
- Full Text:
- Authors: Mqulo, Thandokazi
- Date: 2019
- Subjects: Electronic commerce Consumer behavior
- Language: English
- Type: Thesis , Masters , MCom (Business Management)
- Identifier: http://hdl.handle.net/10353/16952 , vital:40788
- Description: Online shopping has emerged as one of the most convenient ways of shopping in both emerging and advanced economies. In South Africa, it has received much attention due to its unique way of satisfying both the rural and urban populations. Online shopping is growing and carries great potential of contributing to a country and/or local areas’ economy and development. The primary aim of the study was to analyse the differences of online shopping between males and females in South Africa. The main objective of this study is to determine if there are significant differences between male and female online shoppers in South Africa. The study is motivated by the literature gap that exists on the online shopping discourse, in that there are few published studies on the online shopping differences between males and females in South Africa. Therefore, there is a lack of information on the importance of online shopping activities on promoting convenience for shoppers in these busy times that people live in. A quantitative approach was used to analyse the data that were collected using a questionnaire. Data was collected from a sample of 377 people who are online shoppers in the Eastern Cape, South Africa. Simple random sampling was utilised for this study. The results showed that there is a significant difference between males and females online shopping patterns as determined by specific variables mentioned in this study. Their study had findings on research hypothesis of attitude towards online shopping, the difference in the usefulness of media on online websites, perceived ease of use of online websites, intrinsic enjoyment, perceived risk and trust towards online shopping. The implications of this study unpack and provides discussion on empirical evidence drawn from the study’s statistical results. The implications are presented in a way which explains how the results of this study affect theoretical dimensions of the studied phenomenon, online shoppers and the retail industry. There is a need for more research in this environment and this research study will stimulate further studies in the online shopping environment. Future research may focus on the development of a customer satisfaction scale that uses service quality items in the retail industry, to gather data about what satisfies customers in the retail context.
- Full Text:
Genetic characteristics of Human Immunodeficiency Virus-1, and deter-minants of late presentation for care and Diabetes mellitus amongst newly diagnosed Human Immunodeficiency Virus positive patients in the Eastern Cape, South Africa.
- Authors: Sogbanmu, Olufunso Oladipo
- Date: 2019
- Subjects: HIV infections
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/${Handle} , vital:40495
- Description: Phylogenies may help to characterize transmission pairs, enhance contact tracing and outbreak investigations, track the origin and spread of epidemics over place and time, and to identify patterns of onward Human Immunodeficiency-Virus (HIV) transmission among risk groups. If the pattern and evolution of HIV drug resistance can be mapped, this may influence the development of guidelines in the clinical management of HIV especially with issues relating to prevalence of primary drug resistance and its impact on outcomes of present antiretroviral treatment (ART) regimen in use and the ability to trace and track the development of drug resistant strains. The roll-out of the test and treat Programme for newly diagnosed HIV infected pa-tient, seeks to identify HIV infected individuals early and to prevent morbidity and mortality associated with the late presentation for HIV care. The determination of the magnitude of ‘late presentation’ and or ‘presentation with advanced HIV disease’ can be used in very diverse settings and for many purposes. It provides a unified way to define the problem, thereby targeting appropriate interventions to prevent the detrimental outcomes associated with late presentation to care. The subtle relationship between HIV and diabetes mellitus (DM) may also help in formulating better preventive programs to aid the control of non-communicable diseases such as DM. This cross-sectional study includes a purposive selection of 335 HIV positive patients attending the voluntary counselling and Testing (VCT) and HIV Counselling and Testing (HCT) centres and outpatient departments at Cecilia Makiwane Hospital and the HCT sites at the Buffalo District municipality community health centres, Eastern Cape Province, South Africa. Late or delayed presentation of HIV infection was defined as CD4 cell count beneath 350 cells/μL and/or patients presenting with an AIDS-defining event at the first follow-up regardless of the CD4 cell count. Chapter 1 provides the general introduction had an overview of the introduction to the study, the statement of the research problem, hypothesis, the aim and the objectives. xx Chapter 2 looked in-depth at the HIV, case definition, the latest epidemiology of HIV, the HIV genome, the life cycle of HIV, its diagnosis, the classes of antiretroviral drugs, development of drug resistance. Chapter 3 highlighted the prevalence of Transmitted Drug Resistance (TDR) with focus on the protease gene. RNA was extracted from blood samples of 72 newly diagnosed HIV-1 patients attending some HIV testing and counselling clinics from August 2016 to July 2017. Protease fragments were amplified with specific primers by RT-PCR followed by nested PCR. The amplified products were sequenced using the ABI 360 sequencer, edited with Geneious version 9.1.5 and translated into amino acid with BioEdit software. Drug related resistance mutation (DRMs) analysis was performed on all the protease sequences in accordance with the 2009 WHO list of surveillance drug resistance mutations by submitting the edited sequences to Stanford HIV drug interpretation programme and the international AIDS society-USA guidelines for query of drug resistance associated mutations while phylogenetic analysis was performed using MEGA 6 to allocate all viral sequences into subtypes. In the study, a total of 52/72 (71.1%) reliable HIV-1 protease sequences were obtained in which subtyping and drug resistance mutations were performed. Two (3.8%) major Protease resistance associated mutation (V82A/L and L90M) were observed while another polymorphism like L10F, T74S, Q58E, L10I/V and M46V were also identified. Phylogenetic analyses delineated all the sequences as HIV-1 subtype C. Chapter 4 describes the prevalence and the determinants of late presentation amongst newly diagnosed HIV positive individuals in the Eastern Cape. It indicates the extent of the prevalence of patients presenting to care and at what HIV stage they were assessing health care services since the inception of the ‘test and treat’ strategy. It is a cross-sectional study where a total of 335 newly diagnosed patients were recruited consecutively be-tween August 2016 and July 2017. Late presenter for HIV care was defined in accordance with the European Late Presenter Consensus working group as a patient who reports for care when the CD4 count is below 350 cells/μL and/or when there is an established Aids- xxi defining clinical condition, irrespective of CD4 count. Adjusted and unadjusted logistic regression analysis was used to examine the determinants of late HIV diagnosis. The study showed that 60% of patients were late presenters, with 35% presenting with advanced disease. The major determinants identified were being male and low level of education. This led to recommendations directed at ensuring programmes that targets men in identifying their HIV status and assess care at early stage to prevents the morbidity and mortality associated with delayed presentation. Also, it was recommended that effort should be made to improve access to education and also include HIV related topics into the educational curriculum. Chapter 5 aimed to describe the prevalence and determinants of DM amongst newly diagnosed HIV positive individuals. This is a cross-sectional study which recruited 335 patients between August 2016 and September 2017. Definition for diabetes mellitus was made based on the SEDMSA 2015 guideline of HBA1C of above 6.5%. Adjusted and unadjusted logistic regression analysis was used to examine the determinants of abnormal glycated haemoglobin. Findings showed the prevalence of DM at about 6% amongst newly diagnosed HIV positive individuals. This is similar to findings in other study within the country, but a bit lower than what was obtained in the developed countries. The role of older age (above 40 years) as predisposing factor to development of diabetes in newly diagnosed HIV positive individual was well noted and taken. This ensures that screening for DM should be targeted at elderly HIV positive individuals. The grey area of the appropriate mode of diagnostic test to use to diagnose HIV is still debatable, however, a combination of HBA1c and fasting blood sugar (FBS) may improve the diagnosis of DM in this population group. In chapter 6, the general conclusions, recommendations and future perspectives of the study are reflected.
- Full Text:
- Authors: Sogbanmu, Olufunso Oladipo
- Date: 2019
- Subjects: HIV infections
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/${Handle} , vital:40495
- Description: Phylogenies may help to characterize transmission pairs, enhance contact tracing and outbreak investigations, track the origin and spread of epidemics over place and time, and to identify patterns of onward Human Immunodeficiency-Virus (HIV) transmission among risk groups. If the pattern and evolution of HIV drug resistance can be mapped, this may influence the development of guidelines in the clinical management of HIV especially with issues relating to prevalence of primary drug resistance and its impact on outcomes of present antiretroviral treatment (ART) regimen in use and the ability to trace and track the development of drug resistant strains. The roll-out of the test and treat Programme for newly diagnosed HIV infected pa-tient, seeks to identify HIV infected individuals early and to prevent morbidity and mortality associated with the late presentation for HIV care. The determination of the magnitude of ‘late presentation’ and or ‘presentation with advanced HIV disease’ can be used in very diverse settings and for many purposes. It provides a unified way to define the problem, thereby targeting appropriate interventions to prevent the detrimental outcomes associated with late presentation to care. The subtle relationship between HIV and diabetes mellitus (DM) may also help in formulating better preventive programs to aid the control of non-communicable diseases such as DM. This cross-sectional study includes a purposive selection of 335 HIV positive patients attending the voluntary counselling and Testing (VCT) and HIV Counselling and Testing (HCT) centres and outpatient departments at Cecilia Makiwane Hospital and the HCT sites at the Buffalo District municipality community health centres, Eastern Cape Province, South Africa. Late or delayed presentation of HIV infection was defined as CD4 cell count beneath 350 cells/μL and/or patients presenting with an AIDS-defining event at the first follow-up regardless of the CD4 cell count. Chapter 1 provides the general introduction had an overview of the introduction to the study, the statement of the research problem, hypothesis, the aim and the objectives. xx Chapter 2 looked in-depth at the HIV, case definition, the latest epidemiology of HIV, the HIV genome, the life cycle of HIV, its diagnosis, the classes of antiretroviral drugs, development of drug resistance. Chapter 3 highlighted the prevalence of Transmitted Drug Resistance (TDR) with focus on the protease gene. RNA was extracted from blood samples of 72 newly diagnosed HIV-1 patients attending some HIV testing and counselling clinics from August 2016 to July 2017. Protease fragments were amplified with specific primers by RT-PCR followed by nested PCR. The amplified products were sequenced using the ABI 360 sequencer, edited with Geneious version 9.1.5 and translated into amino acid with BioEdit software. Drug related resistance mutation (DRMs) analysis was performed on all the protease sequences in accordance with the 2009 WHO list of surveillance drug resistance mutations by submitting the edited sequences to Stanford HIV drug interpretation programme and the international AIDS society-USA guidelines for query of drug resistance associated mutations while phylogenetic analysis was performed using MEGA 6 to allocate all viral sequences into subtypes. In the study, a total of 52/72 (71.1%) reliable HIV-1 protease sequences were obtained in which subtyping and drug resistance mutations were performed. Two (3.8%) major Protease resistance associated mutation (V82A/L and L90M) were observed while another polymorphism like L10F, T74S, Q58E, L10I/V and M46V were also identified. Phylogenetic analyses delineated all the sequences as HIV-1 subtype C. Chapter 4 describes the prevalence and the determinants of late presentation amongst newly diagnosed HIV positive individuals in the Eastern Cape. It indicates the extent of the prevalence of patients presenting to care and at what HIV stage they were assessing health care services since the inception of the ‘test and treat’ strategy. It is a cross-sectional study where a total of 335 newly diagnosed patients were recruited consecutively be-tween August 2016 and July 2017. Late presenter for HIV care was defined in accordance with the European Late Presenter Consensus working group as a patient who reports for care when the CD4 count is below 350 cells/μL and/or when there is an established Aids- xxi defining clinical condition, irrespective of CD4 count. Adjusted and unadjusted logistic regression analysis was used to examine the determinants of late HIV diagnosis. The study showed that 60% of patients were late presenters, with 35% presenting with advanced disease. The major determinants identified were being male and low level of education. This led to recommendations directed at ensuring programmes that targets men in identifying their HIV status and assess care at early stage to prevents the morbidity and mortality associated with delayed presentation. Also, it was recommended that effort should be made to improve access to education and also include HIV related topics into the educational curriculum. Chapter 5 aimed to describe the prevalence and determinants of DM amongst newly diagnosed HIV positive individuals. This is a cross-sectional study which recruited 335 patients between August 2016 and September 2017. Definition for diabetes mellitus was made based on the SEDMSA 2015 guideline of HBA1C of above 6.5%. Adjusted and unadjusted logistic regression analysis was used to examine the determinants of abnormal glycated haemoglobin. Findings showed the prevalence of DM at about 6% amongst newly diagnosed HIV positive individuals. This is similar to findings in other study within the country, but a bit lower than what was obtained in the developed countries. The role of older age (above 40 years) as predisposing factor to development of diabetes in newly diagnosed HIV positive individual was well noted and taken. This ensures that screening for DM should be targeted at elderly HIV positive individuals. The grey area of the appropriate mode of diagnostic test to use to diagnose HIV is still debatable, however, a combination of HBA1c and fasting blood sugar (FBS) may improve the diagnosis of DM in this population group. In chapter 6, the general conclusions, recommendations and future perspectives of the study are reflected.
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