Identification of agricultural and industrial pollutants in the Kat River, Eastern Cape and their effect on agricultural products found along the river banks
- Authors: Mutingwende, Nhamo
- Date: 2015
- Subjects: Environmental toxicology , Rivers -- Environmental aspects -- South Africa , Water -- Pollution -- Toxicology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11291 , http://hdl.handle.net/10353/d1020242 , Environmental toxicology , Rivers -- Environmental aspects -- South Africa , Water -- Pollution -- Toxicology -- South Africa
- Description: There is growing concern that commonly used Pharmaceuticals and Personal Care Products (PPCPs) and pesticides are entering and contaminating drinking water supplies. The use of targeted quantitation of PPCP has been well established but there is an emerging trend to also screen for and identify unexpected environmental pollutants. Chemicals like pesticides hormones and antibiotics are especially of interest because of proven endocrine disrupting effects and a possible development of bacterial resistance. Powerful screening methods are required to detect and quantify the presence of these compounds in our environment. PPCP encompass a wide range of pollutants, including Endocrine Disrupting Compounds (EDC), pesticides, hormones, antibiotics, drugs of abuse, x-ray contrast agents and drinking water disinfection by-products to name a few. In order to properly assess the effects of these compounds on our environment, it is necessary to accurately monitor their presence. The diversity of chemical properties of these compounds makes method development challenging. LC/MS/MS is able to analyse polar, semi-volatile, and thermally labile compounds covering a wide molecular weight range. The new AB SCIEX TripleTOF™5600 LC/MS/MS was used to profile environmental samples for unexpected pollutants, to identify and characterise the chemical composition and structure of the pollutants, and to quantify (based on intensity) the concentration in collected water samples. Liquid Chromatography coupled to tandem Mass Spectrometry (LCMS/ MS) is able to analyse polar, semi-volatile, and thermally labile compounds covering a wide molecular weight range, such as pesticides, antibiotics, drugs of abuse, x-ray contrast agents, drinking water disinfection by-products etc. More recently there is a growing interest from environmental researchers to also screen for and identify non-targeted compounds in environmental samples, including metabolites and degradates, but also completely unexpected pollutants. The new AB SCIEX TripleTOF™5600 LC/MS/MS system is capable of performing highly sensitive and fast MS scanning experiments to search for unknown molecular ions while also performing selective and characteristic MS/MS scanning for further compound identification and, therefore, is the instrument of choice for this challenging task. General unknown screening workflows do not use a target analyte list and compound detection is not based on any prior knowledge, including retention times and information on possible molecular and fragment ions. Therefore, acquired chromatograms are very rich in information and can easily contain thousands of ions from both any compounds present in the sample as well as from the sample matrix itself. Thus, powerful software tools are needed to explore such data to identify the unexpected compound. Water samples were collected both upstream and downstream of two WWTPs (Seymour and Fort Beaufort) and were directly injected on the AB SCIEX TripleTOF™5600 LC/MS/MS after being filtered. 15 sample points along the Kat River, ranging from a point as close to the source as possible to a point just before it joins the Great Fish River were used. The samples collected from the source were used as the control in each of the experiments, the assumption being the closer you get to the source, the less contaminated the water would be for the analysis of pesticides. Points were selected where the Kat River crosses the R67 or on farms where the river was accessible using farm roads. Samples were collected from October 2013 to November 2014.The Peak view software and Analyst software were used in the analysis of PPCPs. The XIC Manager allows you to manage large lists of compounds and perform automatic extracted ion chromatogram (XIC) calculations and review results operations. The results were displayed in the chromatogram pane and the XIC table (see results). The results reported here in this thesis indicate that there is contamination in the Kat River water due to both pesticides and PPCPs. The results also indicate that the food products are also contaminated and hence both the Kat River agricultural produce and its water need to be closely monitored for both pesticide and PPCPs contaminants. Further studies to investigate the quantitative levels of pesticides and PPCPs in the Kat river water to determine if the concentration levels of the detected pesticides are below the reported Maximum Residues Limits will be explored in the future.
- Full Text:
- Date Issued: 2015
- Authors: Mutingwende, Nhamo
- Date: 2015
- Subjects: Environmental toxicology , Rivers -- Environmental aspects -- South Africa , Water -- Pollution -- Toxicology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11291 , http://hdl.handle.net/10353/d1020242 , Environmental toxicology , Rivers -- Environmental aspects -- South Africa , Water -- Pollution -- Toxicology -- South Africa
- Description: There is growing concern that commonly used Pharmaceuticals and Personal Care Products (PPCPs) and pesticides are entering and contaminating drinking water supplies. The use of targeted quantitation of PPCP has been well established but there is an emerging trend to also screen for and identify unexpected environmental pollutants. Chemicals like pesticides hormones and antibiotics are especially of interest because of proven endocrine disrupting effects and a possible development of bacterial resistance. Powerful screening methods are required to detect and quantify the presence of these compounds in our environment. PPCP encompass a wide range of pollutants, including Endocrine Disrupting Compounds (EDC), pesticides, hormones, antibiotics, drugs of abuse, x-ray contrast agents and drinking water disinfection by-products to name a few. In order to properly assess the effects of these compounds on our environment, it is necessary to accurately monitor their presence. The diversity of chemical properties of these compounds makes method development challenging. LC/MS/MS is able to analyse polar, semi-volatile, and thermally labile compounds covering a wide molecular weight range. The new AB SCIEX TripleTOF™5600 LC/MS/MS was used to profile environmental samples for unexpected pollutants, to identify and characterise the chemical composition and structure of the pollutants, and to quantify (based on intensity) the concentration in collected water samples. Liquid Chromatography coupled to tandem Mass Spectrometry (LCMS/ MS) is able to analyse polar, semi-volatile, and thermally labile compounds covering a wide molecular weight range, such as pesticides, antibiotics, drugs of abuse, x-ray contrast agents, drinking water disinfection by-products etc. More recently there is a growing interest from environmental researchers to also screen for and identify non-targeted compounds in environmental samples, including metabolites and degradates, but also completely unexpected pollutants. The new AB SCIEX TripleTOF™5600 LC/MS/MS system is capable of performing highly sensitive and fast MS scanning experiments to search for unknown molecular ions while also performing selective and characteristic MS/MS scanning for further compound identification and, therefore, is the instrument of choice for this challenging task. General unknown screening workflows do not use a target analyte list and compound detection is not based on any prior knowledge, including retention times and information on possible molecular and fragment ions. Therefore, acquired chromatograms are very rich in information and can easily contain thousands of ions from both any compounds present in the sample as well as from the sample matrix itself. Thus, powerful software tools are needed to explore such data to identify the unexpected compound. Water samples were collected both upstream and downstream of two WWTPs (Seymour and Fort Beaufort) and were directly injected on the AB SCIEX TripleTOF™5600 LC/MS/MS after being filtered. 15 sample points along the Kat River, ranging from a point as close to the source as possible to a point just before it joins the Great Fish River were used. The samples collected from the source were used as the control in each of the experiments, the assumption being the closer you get to the source, the less contaminated the water would be for the analysis of pesticides. Points were selected where the Kat River crosses the R67 or on farms where the river was accessible using farm roads. Samples were collected from October 2013 to November 2014.The Peak view software and Analyst software were used in the analysis of PPCPs. The XIC Manager allows you to manage large lists of compounds and perform automatic extracted ion chromatogram (XIC) calculations and review results operations. The results were displayed in the chromatogram pane and the XIC table (see results). The results reported here in this thesis indicate that there is contamination in the Kat River water due to both pesticides and PPCPs. The results also indicate that the food products are also contaminated and hence both the Kat River agricultural produce and its water need to be closely monitored for both pesticide and PPCPs contaminants. Further studies to investigate the quantitative levels of pesticides and PPCPs in the Kat river water to determine if the concentration levels of the detected pesticides are below the reported Maximum Residues Limits will be explored in the future.
- Full Text:
- Date Issued: 2015
Spatial and seasonal variations of water quality determinants and pollutants as fitness-for-use and compliance assessments of the Mzimvubu catchment water resources for the proposed Mzimvubu Water Project, South Africa
- Authors: Mutingwende, Nhamo
- Date: 2018
- Subjects: Water quality -- South Africa Water quality management
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/9308 , vital:34320
- Description: The Department of Water Affairs as of late reported plans to build two substantial stockpiling dams in the Mzimvubu Catchment. The Mzimvubu stream basin is probably one of most prominent and undeveloped basin in South Africa. This is notwithstanding high yearly rainfall, high ecological status, high tourism potential, and appropriateness for afforestation, dryland/rainfed and water system agribusiness. Hence, the Department of Water Affairs researched the capability of building a multipurpose dam in the Mzimvubu catchment to catalyse financial and social improvement. The proposed dam will be based on the Tsitsa River. Often, scientific studies related to dam construction concentrate more on discovering the most, in fact, accessible place to construct it, than on the long haul socio-natural issues that come in its preparation. The water quality of the Tsitsa River, its tributaries and the underground drinking water sources within the Mzimvubu catchment are most likely to change once the dam wall is completed. Surface water resources are susceptible to chemical, physical, microbiological contamination and the so-called emerging pollutants either, through human or natural activities. A comprehensive baseline study on the water quality of the Mzimvubu water resources regarding traces of emerging pollutants and water quality determinants (physical, chemical and microbial) pre-dam construction is therefore essential. The objective of the water quality section of this study was to perform an in-depth analysis of water quality in the study area to form a baseline for future studies on how the built dam may affect these. The approach was to assess the spatial and seasonal variations of the pollutants (pharmaceuticals and pesticides) and water quality determinants for all water sources most likely to be affected by the development of the dam. The fitness-for-use and compliance assessments were conducted to assess if the current water resources are fit-for-use for various categories of use and if they comply with various water quality standards and guidelines as determined by the Department of Water Affairs and Forestry. Department of Water Affairs and Forestry is the overseer of South Africa's water assets, and its central goal is to keep up the fitness-for-use of water on a sustained basis. Water samples (500ml) were collected from sixteen (16) sample points, ranging from the proposed mouth of the dam to the N2 bridge point of the Tsitsa River. Points were selected where the Tsitsa River was accessible using the dam project development roads or where tributaries to the Tsitsa River were accessible using dam development roads. Taps/groundwater sources were sampled from the five selected villages. Monthly samples were collected upstream and downstream of the proposed dam wall, from June 2015 to April 2017.Seventeen (17) water quality indices were therefore analysed at sixteen sampling sites, over a two year period. The AB SCIEX TripleTOF™5600 LC/MS/MS was used to screen for pharmaceutical and pesticide pollutants. All the water quality indices were analysed using the AL400 Aqua lytic photometer, and the microbial analysis was done using the Rand Water Method Number 1.2.2.09.1 for enumerating the amount of E. coli and coliforms in the water samples (Rand Water, 2010f). The South African Water Quality Guidelines, Volumes 1 to 7 (DWS, 1996a-g) were used to assess the fitness-for-use of the water sources. To confirm the compliance of the water resources to various standards and guidelines, the water quality data were assessed against international and national guidelines and standards i.e. the WHO guideline, South African water quality guidelines (domestic, irrigation, livestock and watering, aquaculture, and aquatic ecosystems), and the SANS: 241 (2015) standard for drinking water. Non-parametric statistics were utilised to ascertain the changeability, which is a measure of how water quality may vary after some time. With non-parametric insights, the interquartile extent, which lies between the 25th and the 75th percentile, was utilised to depict inconstancy. The median value (50th percentile) was used as an indication of the central tendency or average. The 90th percentile was included as it can be used to assess the frequency of excursions into higher and possibly unacceptable water quality conditions. 3D Sigma plot was used to graphical present the spatial and seasonal variations of water quality indices and emerging pollutants against their concentrations. Fundamental statistical properties and correlations of water quality variables from the Tsitsa River, Tsitsa River tributaries and the drinking water sources were examined using SAS descriptive statistics. The water quality was determined to be of relatively sound quality, based on the comparison with guidelines and standards for the various intended uses, even though some of the water quality determinants were non-compliant and were “unacceptable” regarding fitness for purpose. The water quality of the Ntabalenga dam would most probably be affected by natural influences (for example rainfall, weathering and geological composition) and anthropogenic factors through non-point source pollution from agriculture activities, human settlements (pit latrines and open defecation) as well as industrial activities in the Maclear and Tsolo towns (wastewater treatments plants effluent, hospital effluent). The Tsitsa River had the highest number of non-compliances, especially to the World Health Organisation and Department of Water and Sanitation aquaculture guidelines. Therefore, the Tsitsa River’s water quality would be a significant factor that could compromise the water quality of the water collected in the dam. The human settlement conditions and agricultural inputs seem to be the factors contributing most to contamination of the surface water of the catchment area. The lack of sanitation systems and facilities means that community members have to use the bush and rivers for ablutions, thus contributing to microbial contamination of the environment. The direct application of manure and fertilisers on the fields by farmers further exacerbates microbial contamination and high nutrient inputs into the environment as observed in elevated microbial and phosphate contaminants during the study period. The data obtained from the analysis of pesticides and pharmaceuticals confirmed the contamination of the drinking water sources, the Tsitsa River and its tributaries with pesticides and pharmaceuticals through non-point source pollution. The origins of these pharmaceutical contaminants were identified as the pit latrines, open defecation and wastewater treatment plant effluent, while agricultural application of pesticides was identified as the source of pesticides in surface waters. If not monitored closely, the presence of these emerging pollutants will negatively affect the quality of the dam water both at spatial and temporal scales once the dam wall is completed. Pit latrines and wastewater treatment plants are a significant source of non-point source pollution. The results of this study will add to the ongoing efforts on water quality remediation by recording the spatial and seasonal variations in water quality across various water sources within the study area. The study also provides a baseline for future water quality fitness-for-use and compliance assessments. By these findings and conclusions, it is recommended that a long-term continuous monitoring programme be implemented, especially in areas where increased agricultural activities have been observed. Monitoring should be implemented for the Tsitsa River, its tributaries, and selected drinking water sources which showed the highest number of non-compliances and microbial contamination. All anthropogenic activities in the catchment areas of these sources, both upstream and downstream of the proposed dam wall, must be monitored and strictly managed to prevent and mitigate their possible impacts. Specific emphasis should be placed on agricultural development, which should be controlled to ensure sustainable livestock and cropping practises. Sanitation facilities, systems and community programmes should be put in place to minimise microbial contamination. It would be beneficial for the Department of Water and Sanitation office responsible for the Mzimvubu water resources to establish a central database for all information concerning the water quality of their water resources including the findings in this report. The database must be freely accessible to the residents of the Mzimvubu catchment.
- Full Text:
- Date Issued: 2018
- Authors: Mutingwende, Nhamo
- Date: 2018
- Subjects: Water quality -- South Africa Water quality management
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/9308 , vital:34320
- Description: The Department of Water Affairs as of late reported plans to build two substantial stockpiling dams in the Mzimvubu Catchment. The Mzimvubu stream basin is probably one of most prominent and undeveloped basin in South Africa. This is notwithstanding high yearly rainfall, high ecological status, high tourism potential, and appropriateness for afforestation, dryland/rainfed and water system agribusiness. Hence, the Department of Water Affairs researched the capability of building a multipurpose dam in the Mzimvubu catchment to catalyse financial and social improvement. The proposed dam will be based on the Tsitsa River. Often, scientific studies related to dam construction concentrate more on discovering the most, in fact, accessible place to construct it, than on the long haul socio-natural issues that come in its preparation. The water quality of the Tsitsa River, its tributaries and the underground drinking water sources within the Mzimvubu catchment are most likely to change once the dam wall is completed. Surface water resources are susceptible to chemical, physical, microbiological contamination and the so-called emerging pollutants either, through human or natural activities. A comprehensive baseline study on the water quality of the Mzimvubu water resources regarding traces of emerging pollutants and water quality determinants (physical, chemical and microbial) pre-dam construction is therefore essential. The objective of the water quality section of this study was to perform an in-depth analysis of water quality in the study area to form a baseline for future studies on how the built dam may affect these. The approach was to assess the spatial and seasonal variations of the pollutants (pharmaceuticals and pesticides) and water quality determinants for all water sources most likely to be affected by the development of the dam. The fitness-for-use and compliance assessments were conducted to assess if the current water resources are fit-for-use for various categories of use and if they comply with various water quality standards and guidelines as determined by the Department of Water Affairs and Forestry. Department of Water Affairs and Forestry is the overseer of South Africa's water assets, and its central goal is to keep up the fitness-for-use of water on a sustained basis. Water samples (500ml) were collected from sixteen (16) sample points, ranging from the proposed mouth of the dam to the N2 bridge point of the Tsitsa River. Points were selected where the Tsitsa River was accessible using the dam project development roads or where tributaries to the Tsitsa River were accessible using dam development roads. Taps/groundwater sources were sampled from the five selected villages. Monthly samples were collected upstream and downstream of the proposed dam wall, from June 2015 to April 2017.Seventeen (17) water quality indices were therefore analysed at sixteen sampling sites, over a two year period. The AB SCIEX TripleTOF™5600 LC/MS/MS was used to screen for pharmaceutical and pesticide pollutants. All the water quality indices were analysed using the AL400 Aqua lytic photometer, and the microbial analysis was done using the Rand Water Method Number 1.2.2.09.1 for enumerating the amount of E. coli and coliforms in the water samples (Rand Water, 2010f). The South African Water Quality Guidelines, Volumes 1 to 7 (DWS, 1996a-g) were used to assess the fitness-for-use of the water sources. To confirm the compliance of the water resources to various standards and guidelines, the water quality data were assessed against international and national guidelines and standards i.e. the WHO guideline, South African water quality guidelines (domestic, irrigation, livestock and watering, aquaculture, and aquatic ecosystems), and the SANS: 241 (2015) standard for drinking water. Non-parametric statistics were utilised to ascertain the changeability, which is a measure of how water quality may vary after some time. With non-parametric insights, the interquartile extent, which lies between the 25th and the 75th percentile, was utilised to depict inconstancy. The median value (50th percentile) was used as an indication of the central tendency or average. The 90th percentile was included as it can be used to assess the frequency of excursions into higher and possibly unacceptable water quality conditions. 3D Sigma plot was used to graphical present the spatial and seasonal variations of water quality indices and emerging pollutants against their concentrations. Fundamental statistical properties and correlations of water quality variables from the Tsitsa River, Tsitsa River tributaries and the drinking water sources were examined using SAS descriptive statistics. The water quality was determined to be of relatively sound quality, based on the comparison with guidelines and standards for the various intended uses, even though some of the water quality determinants were non-compliant and were “unacceptable” regarding fitness for purpose. The water quality of the Ntabalenga dam would most probably be affected by natural influences (for example rainfall, weathering and geological composition) and anthropogenic factors through non-point source pollution from agriculture activities, human settlements (pit latrines and open defecation) as well as industrial activities in the Maclear and Tsolo towns (wastewater treatments plants effluent, hospital effluent). The Tsitsa River had the highest number of non-compliances, especially to the World Health Organisation and Department of Water and Sanitation aquaculture guidelines. Therefore, the Tsitsa River’s water quality would be a significant factor that could compromise the water quality of the water collected in the dam. The human settlement conditions and agricultural inputs seem to be the factors contributing most to contamination of the surface water of the catchment area. The lack of sanitation systems and facilities means that community members have to use the bush and rivers for ablutions, thus contributing to microbial contamination of the environment. The direct application of manure and fertilisers on the fields by farmers further exacerbates microbial contamination and high nutrient inputs into the environment as observed in elevated microbial and phosphate contaminants during the study period. The data obtained from the analysis of pesticides and pharmaceuticals confirmed the contamination of the drinking water sources, the Tsitsa River and its tributaries with pesticides and pharmaceuticals through non-point source pollution. The origins of these pharmaceutical contaminants were identified as the pit latrines, open defecation and wastewater treatment plant effluent, while agricultural application of pesticides was identified as the source of pesticides in surface waters. If not monitored closely, the presence of these emerging pollutants will negatively affect the quality of the dam water both at spatial and temporal scales once the dam wall is completed. Pit latrines and wastewater treatment plants are a significant source of non-point source pollution. The results of this study will add to the ongoing efforts on water quality remediation by recording the spatial and seasonal variations in water quality across various water sources within the study area. The study also provides a baseline for future water quality fitness-for-use and compliance assessments. By these findings and conclusions, it is recommended that a long-term continuous monitoring programme be implemented, especially in areas where increased agricultural activities have been observed. Monitoring should be implemented for the Tsitsa River, its tributaries, and selected drinking water sources which showed the highest number of non-compliances and microbial contamination. All anthropogenic activities in the catchment areas of these sources, both upstream and downstream of the proposed dam wall, must be monitored and strictly managed to prevent and mitigate their possible impacts. Specific emphasis should be placed on agricultural development, which should be controlled to ensure sustainable livestock and cropping practises. Sanitation facilities, systems and community programmes should be put in place to minimise microbial contamination. It would be beneficial for the Department of Water and Sanitation office responsible for the Mzimvubu water resources to establish a central database for all information concerning the water quality of their water resources including the findings in this report. The database must be freely accessible to the residents of the Mzimvubu catchment.
- Full Text:
- Date Issued: 2018
Wathi wa Ota
- Mutio wa Katuma, Tracey, Hugh
- Authors: Mutio wa Katuma , Tracey, Hugh
- Date: 1950
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa Kenya city not specified f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/300379 , vital:57926 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP2128-XYZ5574
- Description: Indigenous music
- Full Text: false
- Date Issued: 1950
- Authors: Mutio wa Katuma , Tracey, Hugh
- Date: 1950
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa Kenya city not specified f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/300379 , vital:57926 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP2128-XYZ5574
- Description: Indigenous music
- Full Text: false
- Date Issued: 1950
Wathi wa Ota
- Mutio wa Katuma, performer not specified, Tracey, Hugh
- Authors: Mutio wa Katuma , performer not specified , Tracey, Hugh
- Date: 1950
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa Kenya city not specified f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/369138 , vital:66178 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , ACO269-D6W5
- Description: Indigenous music
- Full Text: false
- Date Issued: 1950
- Authors: Mutio wa Katuma , performer not specified , Tracey, Hugh
- Date: 1950
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa Kenya city not specified f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/369138 , vital:66178 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , ACO269-D6W5
- Description: Indigenous music
- Full Text: false
- Date Issued: 1950
Wathi wa ota
- Mutio wa Katuma, not specified, Tracey, Hugh
- Authors: Mutio wa Katuma , not specified , Tracey, Hugh
- Date: 1950-09-26
- Subjects: Popular music--Africa , Field recordings , Africa, Sub-Saharan , Africa Kenya Nairobi f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/230357 , vital:49770 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , CR2410 , XYZ5574
- Description: Divination song with musical bow with half gourd
- Full Text: false
- Date Issued: 1950-09-26
- Authors: Mutio wa Katuma , not specified , Tracey, Hugh
- Date: 1950-09-26
- Subjects: Popular music--Africa , Field recordings , Africa, Sub-Saharan , Africa Kenya Nairobi f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/230357 , vital:49770 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , CR2410 , XYZ5574
- Description: Divination song with musical bow with half gourd
- Full Text: false
- Date Issued: 1950-09-26
Wathi wa ota
- Mutio wa Katuma, Hugh Tracey
- Authors: Mutio wa Katuma , Hugh Tracey
- Date: 1950
- Subjects: Folk songs, Kamba , Kamba (African people) , Folk music--Kenya , Folk music , Field recordings , Africa, Sub-Saharan , Africa Kenya Machakos f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/175889 , vital:42635 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR160-07
- Description: This musical bow is a plain bow, loosely strung and strained by means of a half section gourd, which is situated between the bow and the wire string. The concave side is held against the bow, the convex against the string. The singer sings into this hollow gourd and beats the string with a light stick producing one note only. Other players may beat both segments of the string thus producing two fundamental notes Divination song, with musical bow, strained and resonated with half gourd.
- Full Text: false
- Date Issued: 1950
- Authors: Mutio wa Katuma , Hugh Tracey
- Date: 1950
- Subjects: Folk songs, Kamba , Kamba (African people) , Folk music--Kenya , Folk music , Field recordings , Africa, Sub-Saharan , Africa Kenya Machakos f-ke
- Language: Kamba
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/175889 , vital:42635 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR160-07
- Description: This musical bow is a plain bow, loosely strung and strained by means of a half section gourd, which is situated between the bow and the wire string. The concave side is held against the bow, the convex against the string. The singer sings into this hollow gourd and beats the string with a light stick producing one note only. Other players may beat both segments of the string thus producing two fundamental notes Divination song, with musical bow, strained and resonated with half gourd.
- Full Text: false
- Date Issued: 1950
Graduateness and employability: a case of one polytechnic in Zimbabwe
- Authors: Mutirwara, Miriam
- Date: 2015
- Subjects: Occupational training Employees -- Training -- Zimbabwe College graduates -- Employment -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD (Education)
- Identifier: http://hdl.handle.net/10353/6125 , vital:29493
- Description: The study explored the domains of graduateness and employability at one polytechnic in Zimbabwe. The focus was on how instructional delivery strategies and assessment tools could embed domains of graduateness and employer expectations. A phenomenological research approach was used in conducting the study. This qualitative research paradigm allowed the research to take place in a natural setting which enabled a holistic picture and use of an inductive mode of inquiry through the researcher’s immersion in the research setting. Human capital, teaching methods and flexible training models, among others, emerged as major strengths in training. However, these key strengths were marred by unprofessional practices and limited resources. In assessment, proficiency schedules, trade testing and use of external assessors emerged as key strengths. Pertaining to the curriculum, it emerged that on paper, curriculum specifications and design for implementation appeared relevant to the production of a graduate exhibiting attributes of graduateness. It however emerged that there was need to revisit the hidden curriculum, as training was dependent on the availability of resources. The study proposes a framework for promoting graduateness and enhancing employability through creation of mutual partnerships to collectively develop a curriculum that is acceptable to institutions and industry. Moreover, graduateness domains should be enshrined in the curriculum. A need for strategic selection of teaching and assessment methods which promote critical thinking, interaction, decision making and retention of information was identified. Major recommendations are that institutions should align themselves with market demands and technological changes to ensure employability. Institutions should also prepare graduates for transition to the world of work, by rendering adequate preparation through teaming up with industry and the use of appropriate teaching methodology.
- Full Text:
- Date Issued: 2015
- Authors: Mutirwara, Miriam
- Date: 2015
- Subjects: Occupational training Employees -- Training -- Zimbabwe College graduates -- Employment -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD (Education)
- Identifier: http://hdl.handle.net/10353/6125 , vital:29493
- Description: The study explored the domains of graduateness and employability at one polytechnic in Zimbabwe. The focus was on how instructional delivery strategies and assessment tools could embed domains of graduateness and employer expectations. A phenomenological research approach was used in conducting the study. This qualitative research paradigm allowed the research to take place in a natural setting which enabled a holistic picture and use of an inductive mode of inquiry through the researcher’s immersion in the research setting. Human capital, teaching methods and flexible training models, among others, emerged as major strengths in training. However, these key strengths were marred by unprofessional practices and limited resources. In assessment, proficiency schedules, trade testing and use of external assessors emerged as key strengths. Pertaining to the curriculum, it emerged that on paper, curriculum specifications and design for implementation appeared relevant to the production of a graduate exhibiting attributes of graduateness. It however emerged that there was need to revisit the hidden curriculum, as training was dependent on the availability of resources. The study proposes a framework for promoting graduateness and enhancing employability through creation of mutual partnerships to collectively develop a curriculum that is acceptable to institutions and industry. Moreover, graduateness domains should be enshrined in the curriculum. A need for strategic selection of teaching and assessment methods which promote critical thinking, interaction, decision making and retention of information was identified. Major recommendations are that institutions should align themselves with market demands and technological changes to ensure employability. Institutions should also prepare graduates for transition to the world of work, by rendering adequate preparation through teaming up with industry and the use of appropriate teaching methodology.
- Full Text:
- Date Issued: 2015
Preparation and characterisation of nanocomposite biodegradable films of hake fish gelatine and Na-montmorillonite
- Authors: Mutize, Innocent
- Date: 2012-12
- Subjects: Nanocomposites (Materials) , Food -- Packaging
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24261 , vital:62595
- Description: Hake fish (Merluccius paradoxus) based films were prepared using gelatine extracted from hake fish bones and skins. They were characterized using FTIR, TGA and XRD. Polyethylene glycol and distilled water were used as plasticizer and solvent respectively. Montmorillonite clay was also added to the film matrix at different concentration (1-13percent gelatine weight) to improve the films‟ functional properties. Fourier Transform Infrared (FTIR), Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) and Ultra Violet-Visible (UV-Vis) spectroscopy analysis were used to characterise gelatine extracted from hake fish bones and skins. The extraction time and temperature were varied between 30 mins to 120 mins and 45°C to 75°C respectively. The yields of the gelatines extracted at the stated conditions were calculated from the hydroxyproline content giving values of 30 to 39percent, 43 to 55percent and 50 to 57percent for extraction at 45°C, 60°C and 75°C respectively. The effect of polyethylene glycol content on the mechanical and barrier properties of hake fish gelatine films was also investigated. The addition of polyethylene glycol to the film solution increased the water vapour permeability from 0.0321 ± 0.0011 ng.m/m2.s.Pa to 0.0993 ± 0.0007 ng.m/m2.s.Pa between 5 and 35percent polyethylene glycol content and decreased tensile strength from 41.92 ± 2.17 MPa to 29.93 ± 0.17 MPa. Sodium treated Montmorillonite was incorporated in the hake fish gelatine film solution in order to assess the effect of Montmorillonite clay on the film mechanical, barrier and thermal properties. Hake fish gelatine-montmorillonite composite films were successfully prepared and characterized. X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) analysis indicated that the Montmorillonite clay in the film matrices was in an exfoliated state. Water vapour permeability was reduced from 0.0312 ± 0.0016 ng.m/m2.s.Pa to 0.0081 ± 0.0001ng.m/m2.s.Pa and tensile strength improved from 29.93 ± 0.17MPa to 76.78 ± 1.13 MPa. , Thesis (MSc) -- Faculty of Science and Agriculture, 2012
- Full Text:
- Date Issued: 2012-12
- Authors: Mutize, Innocent
- Date: 2012-12
- Subjects: Nanocomposites (Materials) , Food -- Packaging
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24261 , vital:62595
- Description: Hake fish (Merluccius paradoxus) based films were prepared using gelatine extracted from hake fish bones and skins. They were characterized using FTIR, TGA and XRD. Polyethylene glycol and distilled water were used as plasticizer and solvent respectively. Montmorillonite clay was also added to the film matrix at different concentration (1-13percent gelatine weight) to improve the films‟ functional properties. Fourier Transform Infrared (FTIR), Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) and Ultra Violet-Visible (UV-Vis) spectroscopy analysis were used to characterise gelatine extracted from hake fish bones and skins. The extraction time and temperature were varied between 30 mins to 120 mins and 45°C to 75°C respectively. The yields of the gelatines extracted at the stated conditions were calculated from the hydroxyproline content giving values of 30 to 39percent, 43 to 55percent and 50 to 57percent for extraction at 45°C, 60°C and 75°C respectively. The effect of polyethylene glycol content on the mechanical and barrier properties of hake fish gelatine films was also investigated. The addition of polyethylene glycol to the film solution increased the water vapour permeability from 0.0321 ± 0.0011 ng.m/m2.s.Pa to 0.0993 ± 0.0007 ng.m/m2.s.Pa between 5 and 35percent polyethylene glycol content and decreased tensile strength from 41.92 ± 2.17 MPa to 29.93 ± 0.17 MPa. Sodium treated Montmorillonite was incorporated in the hake fish gelatine film solution in order to assess the effect of Montmorillonite clay on the film mechanical, barrier and thermal properties. Hake fish gelatine-montmorillonite composite films were successfully prepared and characterized. X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) analysis indicated that the Montmorillonite clay in the film matrices was in an exfoliated state. Water vapour permeability was reduced from 0.0312 ± 0.0016 ng.m/m2.s.Pa to 0.0081 ± 0.0001ng.m/m2.s.Pa and tensile strength improved from 29.93 ± 0.17MPa to 76.78 ± 1.13 MPa. , Thesis (MSc) -- Faculty of Science and Agriculture, 2012
- Full Text:
- Date Issued: 2012-12
Molecular and morphological approaches reveal hidden diversity in the genus hippopotamyrus pappenheim, 1906 (teleostei: mormyridae) in southern Africa
- Authors: Mutizwa, Tadiwa, Isaac
- Date: 2020
- Subjects: Uncatalogued
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/164546 , vital:41128
- Description: Thesis (MSc)--Rhodes University, Faculty of Science, Department of Icthyology and Fisheries Science, 2020
- Full Text:
- Date Issued: 2020
- Authors: Mutizwa, Tadiwa, Isaac
- Date: 2020
- Subjects: Uncatalogued
- Language: English
- Type: thesis , text , Masters , MSc
- Identifier: http://hdl.handle.net/10962/164546 , vital:41128
- Description: Thesis (MSc)--Rhodes University, Faculty of Science, Department of Icthyology and Fisheries Science, 2020
- Full Text:
- Date Issued: 2020
Political party institutionalization : a case study of Kenya
- Mutizwa-Mangiza, Shingai Price
- Authors: Mutizwa-Mangiza, Shingai Price
- Date: 2014
- Subjects: Kenya -- Politics and government , Political parties -- Kenya , Kenya -- History , Kenya -- Colonial influence
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2881 , http://hdl.handle.net/10962/d1013258
- Description: This thesis explores the nature and extent of political party institutionalization in Kenya. More specifically, it focuses on the four dimensions of party institutionalization, namely organizational systemness, value-infusion, decisional autonomy and reification. The study itself is largely located within the historical-institutionalist school of thought, with particular emphasis on the path dependency strand of this theoretical framework. However, the study also employs a political economy approach. It recognizes that the development trajectory of party politics in Kenya did not evolve in a vacuum but within a particular historical-institutional and political-economic context. The thesis advances the notion that those current low levels of party institutionalization that are evident in almost all parties, and the relatively peripheral role that they have in Kenya's governance can be traced to Kenya's colonial and post-colonial political history, the resource poor environment and the onset of globalization.
- Full Text:
- Date Issued: 2014
- Authors: Mutizwa-Mangiza, Shingai Price
- Date: 2014
- Subjects: Kenya -- Politics and government , Political parties -- Kenya , Kenya -- History , Kenya -- Colonial influence
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2881 , http://hdl.handle.net/10962/d1013258
- Description: This thesis explores the nature and extent of political party institutionalization in Kenya. More specifically, it focuses on the four dimensions of party institutionalization, namely organizational systemness, value-infusion, decisional autonomy and reification. The study itself is largely located within the historical-institutionalist school of thought, with particular emphasis on the path dependency strand of this theoretical framework. However, the study also employs a political economy approach. It recognizes that the development trajectory of party politics in Kenya did not evolve in a vacuum but within a particular historical-institutional and political-economic context. The thesis advances the notion that those current low levels of party institutionalization that are evident in almost all parties, and the relatively peripheral role that they have in Kenya's governance can be traced to Kenya's colonial and post-colonial political history, the resource poor environment and the onset of globalization.
- Full Text:
- Date Issued: 2014
The development of grade one teachers’ mathematics and pedagogical content knowledge through participation in a collaborative intervention
- Authors: Mutlane, Kedisaletse Stella
- Date: 2021-04
- Subjects: Mathematics -- Study and teaching (Elementary) -- South Africa -- Northern Cape , Pedagogical content knowledge , Mathematics teachers -- Training of -- South Africa -- Northern Cape , Lesson planning -- South Africa -- Northern Cape , Teaching teams -- South Africa -- Northern Cape , Cultural Historical Activity Theory (CHAT)
- Language: English
- Type: thesis , text , Masters , MEd
- Identifier: http://hdl.handle.net/10962/177370 , vital:42815
- Description: The “South African education system is grossly inefficient, severely underperforming and egregiously unfair” (Spaull, 2013, p.3). In particular, grave concerns with learner performance in mathematics in South Africa are well documented (e.g., Taylor, 2008; Spaull, 2013; Venkat & Spaull, 2015). There are various explanations for the poor state of learner performance in mathematics in South Africa. Two of the explanations that relate closely to my research interest are teachers’ insufficient mathematics content and pedagogical knowledge, and inappropriate professional development. This study aims to ascertain how a collaborative intervention can develop teachers’ mathematics and pedagogical content knowledge as they focus on developing learners’ foundational number sense. Cultural Historical Activity Theory, together with Mathematics Knowledge for Teaching (Ball et al., 2008) and the Knowledge Quartet (Rowlands & Turner, 2007) frameworks, provide the explanatory and analytic tools for the research. The research is a qualitative case study underpinned by an interpretivist orientation. The study was conducted at a township public primary school in the Northern Cape. Three Grade One teachers participated in the research. Data was collected through interviews, classroom observations, and videos of collaborative lesson planning and reflection sessions. A key finding emerging from this research is that the teachers had the necessary mathematics content knowledge to teach Grade One mathematics. Despite this and in contrast to it, they lacked adequate pedagogical content knowledge required to develop learners’ number sense. To develop their pedagogical content knowledge, they required the intervention of a ‘more knowledgable other’ (Vygotsky, 2008). Several contradictions and tensions emerged from the research. For example, the teachers expressed that the opportunity to work collaboratively was beneficial, but it was evident that they were familiar with and accomplished in planning and working together. The contradictions emerging from this research provide an opportunity and basis for expansive learning for future collaborative teacher endeavours. , Thesis (MEd) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Mutlane, Kedisaletse Stella
- Date: 2021-04
- Subjects: Mathematics -- Study and teaching (Elementary) -- South Africa -- Northern Cape , Pedagogical content knowledge , Mathematics teachers -- Training of -- South Africa -- Northern Cape , Lesson planning -- South Africa -- Northern Cape , Teaching teams -- South Africa -- Northern Cape , Cultural Historical Activity Theory (CHAT)
- Language: English
- Type: thesis , text , Masters , MEd
- Identifier: http://hdl.handle.net/10962/177370 , vital:42815
- Description: The “South African education system is grossly inefficient, severely underperforming and egregiously unfair” (Spaull, 2013, p.3). In particular, grave concerns with learner performance in mathematics in South Africa are well documented (e.g., Taylor, 2008; Spaull, 2013; Venkat & Spaull, 2015). There are various explanations for the poor state of learner performance in mathematics in South Africa. Two of the explanations that relate closely to my research interest are teachers’ insufficient mathematics content and pedagogical knowledge, and inappropriate professional development. This study aims to ascertain how a collaborative intervention can develop teachers’ mathematics and pedagogical content knowledge as they focus on developing learners’ foundational number sense. Cultural Historical Activity Theory, together with Mathematics Knowledge for Teaching (Ball et al., 2008) and the Knowledge Quartet (Rowlands & Turner, 2007) frameworks, provide the explanatory and analytic tools for the research. The research is a qualitative case study underpinned by an interpretivist orientation. The study was conducted at a township public primary school in the Northern Cape. Three Grade One teachers participated in the research. Data was collected through interviews, classroom observations, and videos of collaborative lesson planning and reflection sessions. A key finding emerging from this research is that the teachers had the necessary mathematics content knowledge to teach Grade One mathematics. Despite this and in contrast to it, they lacked adequate pedagogical content knowledge required to develop learners’ number sense. To develop their pedagogical content knowledge, they required the intervention of a ‘more knowledgable other’ (Vygotsky, 2008). Several contradictions and tensions emerged from the research. For example, the teachers expressed that the opportunity to work collaboratively was beneficial, but it was evident that they were familiar with and accomplished in planning and working together. The contradictions emerging from this research provide an opportunity and basis for expansive learning for future collaborative teacher endeavours. , Thesis (MEd) -- Faculty of Education, Education, 2021
- Full Text:
- Date Issued: 2021-04
Hiwawanaru emabazini - e
- Mutombeni, Daine, Shangaan girls, Tracey, Hugh
- Authors: Mutombeni, Daine , Shangaan girls , Tracey, Hugh
- Date: 1963
- Subjects: Folk music--Africa , Venda (African people) , Tsonga (African people) , Folk songs, Tsonga , Folk music--South Africa , Field recordings , Africa, Sub-Saharan , Africa South Africa Tzaneen f-sa
- Language: Venda , Tsonga
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/187951 , vital:44712 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR193-16
- Description: "On Wednesday we go to the bust stop, truly, yes!" The simple pleasures of the country folk who look forward to the one weekly bus which passes through their village is expressed in this tuneful little song. Tchatchula dance for young girls
- Full Text: false
- Date Issued: 1963
- Authors: Mutombeni, Daine , Shangaan girls , Tracey, Hugh
- Date: 1963
- Subjects: Folk music--Africa , Venda (African people) , Tsonga (African people) , Folk songs, Tsonga , Folk music--South Africa , Field recordings , Africa, Sub-Saharan , Africa South Africa Tzaneen f-sa
- Language: Venda , Tsonga
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/187951 , vital:44712 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR193-16
- Description: "On Wednesday we go to the bust stop, truly, yes!" The simple pleasures of the country folk who look forward to the one weekly bus which passes through their village is expressed in this tuneful little song. Tchatchula dance for young girls
- Full Text: false
- Date Issued: 1963
Development of aptamers against epitopes of the Ebola virus nucleoprotein for future applications in diagnostics
- Mutombwera , Atherton Tiripano
- Authors: Mutombwera , Atherton Tiripano
- Date: 2016
- Subjects: Ebola virus disease Ebola virus disease -- Treatment , Epidemics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/45931 , vital:39321
- Description: Five different subtypes of the Ebola virus (EBOV) have been described. Either Zaire or Sudan EBOV subtypes has caused all of the EBOV outbreaks to date. The March 2014 Zaire EBOV disease outbreak that ravaged West Africa had a mortality rate of 70%, and resulted in 11 315 deaths. Swift cost effective EBOV detection is required to manage EBOV disease outbreaks as this leads to the interruption of the chain of transmission. Lateral flow diagnostic devices (LFDs) have been designed to provide quick, simple and cost effective diagnosis at the point of care and have great potential at interrupting the chain of EBOV transmission. The target recognition elements used in LFDs are the most important components of an LFD as they determine not only the selectivity and specificity of the device but also the transportation and storage conditions of the devices. Antibodies are the most common biomolecules used as target recognition elements in LFDs. However, the cost of producing antibodies is high and these biomolecules are highly sensitive to changes in the environmental conditions (e.g. temperature, pH and ionic strengths of buffer conditions), which can affect the selectivity and specificity of the LFDs. Aptamers can be used as alternative target recognition elements in LFDs. Aptamers are short single stranded nucleic acid molecules that have the ability to bind to their targets (e.g. whole cells, small molecules, toxins, proteins and peptides) with high affinity and specificity. By replacing antibodies with aptamers, LFDs can be produced that are less expensive, have higher selectivity and specificity. The aim of this study was to generate aptamers against the two highly conserved linear epitope regions (amino acid 421-440 and amino acid 601-620) of the EBOV nuclear protein (NP) using site directed SELEX. Such aptamers can be used as target recognition elements in the development of a LFD for the diagnosis of EBOV infection. Four aptamers that can potentially bind to the linear epitope spanning from amino acid 421 to 440 of the EBOV NP and four aptamers that can potentially bind to the linear epitope spanning from amino acid 601 to 620 of the EBOV NP were identified in this study. An in silico analysis of the predicted secondary structure of the putative aptamers was performed before and after the truncation of nucleotide sequences from the 5’ and 3’ ends of the aptamers to remove excess nucleotide sequences. Although this study did not characterise the interaction between the aptamers and linear epitope regions, the study succeeded in optimising the buffer conditions for future interaction studies using the SPR Biacore 3000 instrument.
- Full Text:
- Date Issued: 2016
- Authors: Mutombwera , Atherton Tiripano
- Date: 2016
- Subjects: Ebola virus disease Ebola virus disease -- Treatment , Epidemics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/45931 , vital:39321
- Description: Five different subtypes of the Ebola virus (EBOV) have been described. Either Zaire or Sudan EBOV subtypes has caused all of the EBOV outbreaks to date. The March 2014 Zaire EBOV disease outbreak that ravaged West Africa had a mortality rate of 70%, and resulted in 11 315 deaths. Swift cost effective EBOV detection is required to manage EBOV disease outbreaks as this leads to the interruption of the chain of transmission. Lateral flow diagnostic devices (LFDs) have been designed to provide quick, simple and cost effective diagnosis at the point of care and have great potential at interrupting the chain of EBOV transmission. The target recognition elements used in LFDs are the most important components of an LFD as they determine not only the selectivity and specificity of the device but also the transportation and storage conditions of the devices. Antibodies are the most common biomolecules used as target recognition elements in LFDs. However, the cost of producing antibodies is high and these biomolecules are highly sensitive to changes in the environmental conditions (e.g. temperature, pH and ionic strengths of buffer conditions), which can affect the selectivity and specificity of the LFDs. Aptamers can be used as alternative target recognition elements in LFDs. Aptamers are short single stranded nucleic acid molecules that have the ability to bind to their targets (e.g. whole cells, small molecules, toxins, proteins and peptides) with high affinity and specificity. By replacing antibodies with aptamers, LFDs can be produced that are less expensive, have higher selectivity and specificity. The aim of this study was to generate aptamers against the two highly conserved linear epitope regions (amino acid 421-440 and amino acid 601-620) of the EBOV nuclear protein (NP) using site directed SELEX. Such aptamers can be used as target recognition elements in the development of a LFD for the diagnosis of EBOV infection. Four aptamers that can potentially bind to the linear epitope spanning from amino acid 421 to 440 of the EBOV NP and four aptamers that can potentially bind to the linear epitope spanning from amino acid 601 to 620 of the EBOV NP were identified in this study. An in silico analysis of the predicted secondary structure of the putative aptamers was performed before and after the truncation of nucleotide sequences from the 5’ and 3’ ends of the aptamers to remove excess nucleotide sequences. Although this study did not characterise the interaction between the aptamers and linear epitope regions, the study succeeded in optimising the buffer conditions for future interaction studies using the SPR Biacore 3000 instrument.
- Full Text:
- Date Issued: 2016
An examination of human resource management strategies and their contribution to effective local government systems in Zimbabwe
- Mutongoreni, Noah Ariel https://orcid.org/0000-0002-6039-6241
- Authors: Mutongoreni, Noah Ariel https://orcid.org/0000-0002-6039-6241
- Date: 2015-01
- Subjects: Personnel management , Local government--Zimbabwe
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/24024 , vital:62299
- Description: The study sought to examine human resource management strategies and their contributions to effective local government systems in Manicaland, Zimbabwe. Local government in Zimbabwe, though being nearest to the people, is showing evidence of failure to discharge its mandate. Various factors have been used to explain the reasons behind local government‘s failures to provide services. None of these have touched on the role played by people management in ensuring local government performance. This was notwithstanding the fact that towards the last two decades of the twentieth century research emerged glorifying human resources as the source of organizational excellence. Consequently, being motivated by the fact that good people management strategies lead to excellent organizational performance, attention in this study focused on people management strategies in local government in Zimbabwe. The study adopted a mixed approach with a strong inclination towards qualitative methodology. The data was gleaned from documents from local authorities, interviews, focus group interviews and questionnaire surveys. The study focused on local authorities in Manicaland Province. The results of the study confirmed the existence of human resource management strategies in local authorities in Manicaland, Zimbabwe. The human resource management strategies have however not resulted in excellent performance of local authorities. The reason behind this is attributable to severe resource constraints. Excellent people management strategies were found to be on paper as there were no resources to support them. The dearth of resources in local authorities was found to be attributed to the economic, political, legal and social factors engulfing the local government system in Zimbabwe. Consequently, local government in Zimbabwe remain stressed and in dire need of a ―Lazarus moment‖. There is an engineer with skills to construct dams to quench the thirst souls in the city but there are no resources to construct the dams. The fireman‘s truck rushes to quench a fire outbreak only to arrive at the scene with no water. In view of this, the study recommends that the review of the local government legal framework be speeded up and more autonomy be granted to local authorities. Such a review would have a bearing on the notion of decentralization, democratization and consequently economic development. In addition, government must seriously consider setting aside a portion of its budget towards support of local authorities. v Where democratic ethos exists, there is transparency, accountability, the rule of law and responsiveness. The human resource in local government would in turn promote democracy and excellence. Other strategies such as granting of garnishing powers to local authorities as well as giving their police arresting would further nourish their resource base. When this happen people management strategies would contribute to effective local government systems in Zimbabwe. Further studies on the contribution of human resource management strategies in effective local government systems after the complete overhaul of the current legislative regime would nonetheless be of interest to researchers. , Thesis (PhD) -- Faculty of Management and Commerce, 2015
- Full Text:
- Date Issued: 2015-01
- Authors: Mutongoreni, Noah Ariel https://orcid.org/0000-0002-6039-6241
- Date: 2015-01
- Subjects: Personnel management , Local government--Zimbabwe
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/24024 , vital:62299
- Description: The study sought to examine human resource management strategies and their contributions to effective local government systems in Manicaland, Zimbabwe. Local government in Zimbabwe, though being nearest to the people, is showing evidence of failure to discharge its mandate. Various factors have been used to explain the reasons behind local government‘s failures to provide services. None of these have touched on the role played by people management in ensuring local government performance. This was notwithstanding the fact that towards the last two decades of the twentieth century research emerged glorifying human resources as the source of organizational excellence. Consequently, being motivated by the fact that good people management strategies lead to excellent organizational performance, attention in this study focused on people management strategies in local government in Zimbabwe. The study adopted a mixed approach with a strong inclination towards qualitative methodology. The data was gleaned from documents from local authorities, interviews, focus group interviews and questionnaire surveys. The study focused on local authorities in Manicaland Province. The results of the study confirmed the existence of human resource management strategies in local authorities in Manicaland, Zimbabwe. The human resource management strategies have however not resulted in excellent performance of local authorities. The reason behind this is attributable to severe resource constraints. Excellent people management strategies were found to be on paper as there were no resources to support them. The dearth of resources in local authorities was found to be attributed to the economic, political, legal and social factors engulfing the local government system in Zimbabwe. Consequently, local government in Zimbabwe remain stressed and in dire need of a ―Lazarus moment‖. There is an engineer with skills to construct dams to quench the thirst souls in the city but there are no resources to construct the dams. The fireman‘s truck rushes to quench a fire outbreak only to arrive at the scene with no water. In view of this, the study recommends that the review of the local government legal framework be speeded up and more autonomy be granted to local authorities. Such a review would have a bearing on the notion of decentralization, democratization and consequently economic development. In addition, government must seriously consider setting aside a portion of its budget towards support of local authorities. v Where democratic ethos exists, there is transparency, accountability, the rule of law and responsiveness. The human resource in local government would in turn promote democracy and excellence. Other strategies such as granting of garnishing powers to local authorities as well as giving their police arresting would further nourish their resource base. When this happen people management strategies would contribute to effective local government systems in Zimbabwe. Further studies on the contribution of human resource management strategies in effective local government systems after the complete overhaul of the current legislative regime would nonetheless be of interest to researchers. , Thesis (PhD) -- Faculty of Management and Commerce, 2015
- Full Text:
- Date Issued: 2015-01
Corporate Social Responsibility as a strategy for community development in the Eastern Cape Province: The Case of Volkswagen in Uitenhage
- Authors: Mutongoza, Bonginkosi Hardy
- Date: 2019
- Subjects: Social responsibility of business Community development
- Language: English
- Type: Thesis , Masters , MCom (Development Studies)
- Identifier: http://hdl.handle.net/10353/16963 , vital:40789
- Description: The turn of the new millennium has brought with it a heightened emphasis on Corporate Social Responsibility (CSR), particularly more recently in the global South where underdevelopment is more prevalent. While corporates continue to be viewed as more better-placed than global South governments in the attempt to deal with underdevelopment, this contribution of corporates does not come naturally since their primary focus is making profit. In the case of South Africa, the CSR agenda is regulated primarily by two legal instruments: the B-BBEE Act and the Companies Act. This study set out to determine whether CSR is an effective strategy for community development (CD). The study relied on a qualitative research methodology, employing face-to-face interviews and focus group discussions as the primary sources of data. Data was gathered primarily from two sets of samples: a community sample which comprised of members from wards 47, 50 and 51 in Uitenhage; and a sample comprising of officials from the B-BBEE Commission, the Nelson Mandela Bay Municipality Local Economic Development, and the Volkswagen Community Trust. Participants were purposively sampled in order to save time and resources. The study established that although CSR can be employed for the purposes of achieving community development, there is need for dedicated policies that deal specifically with CSR and set the parameters within which CSR can be carried out. The effectiveness of the CSR agenda in South Africa, thus, relies heavily on the institution of an effective regulatory framework.
- Full Text:
- Date Issued: 2019
- Authors: Mutongoza, Bonginkosi Hardy
- Date: 2019
- Subjects: Social responsibility of business Community development
- Language: English
- Type: Thesis , Masters , MCom (Development Studies)
- Identifier: http://hdl.handle.net/10353/16963 , vital:40789
- Description: The turn of the new millennium has brought with it a heightened emphasis on Corporate Social Responsibility (CSR), particularly more recently in the global South where underdevelopment is more prevalent. While corporates continue to be viewed as more better-placed than global South governments in the attempt to deal with underdevelopment, this contribution of corporates does not come naturally since their primary focus is making profit. In the case of South Africa, the CSR agenda is regulated primarily by two legal instruments: the B-BBEE Act and the Companies Act. This study set out to determine whether CSR is an effective strategy for community development (CD). The study relied on a qualitative research methodology, employing face-to-face interviews and focus group discussions as the primary sources of data. Data was gathered primarily from two sets of samples: a community sample which comprised of members from wards 47, 50 and 51 in Uitenhage; and a sample comprising of officials from the B-BBEE Commission, the Nelson Mandela Bay Municipality Local Economic Development, and the Volkswagen Community Trust. Participants were purposively sampled in order to save time and resources. The study established that although CSR can be employed for the purposes of achieving community development, there is need for dedicated policies that deal specifically with CSR and set the parameters within which CSR can be carried out. The effectiveness of the CSR agenda in South Africa, thus, relies heavily on the institution of an effective regulatory framework.
- Full Text:
- Date Issued: 2019
The nature of violence in South African universities African universities: The politics of process
- Mutongoza, Bonginkosi Hardy https://orcid.org/0000-0002-2939-1274
- Authors: Mutongoza, Bonginkosi Hardy https://orcid.org/0000-0002-2939-1274
- Date: 2021
- Subjects: Education, Higher -- Political aspects , Universities and colleges -- South Africa , Campus violence
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27909 , vital:70816
- Description: The high levels of violence that plague South Africa’s universities are symptomatic of an education system that is under attack, with institutions of higher learning not reflecting the peacefulness and safety which are oftentimes associated with the pursuit of learning. While violence in societies and educational institutions globally continues to intensify in viciousness and frequency, this is especially worrisome for South Africa, a country regarded as one of the most violent in the world. South African education institutions are admittedly extremely violent, yet there are relatively few mechanisms to enable the verification of trends in violence, or to cross-reference and compare incidents, thus making the reduction of violence problematic. The contention is that the general outlook of violence at educational institutions appears to echo the relentless violence which haunts South African communities in general. Against this background, the current study sought to explore the nature of violence in South African universities. To achieve this, the study was guided by an exploration of student and staff experiences of violence in universities, the causes of violence in such sites, and the recording thereof. Underpinned by a pragmatist paradigm, this study utilised a mixed-methods approach to ‘get under the skin’ of the problem of violence in universities. Within the mixed-methods approach, the study employed a single-phase convergent design, which enabled the researcher to reach comprehensive conclusions on violence in universities, by merging and comparing qualitative and quantitative datasets. In the quantitative phase of the study, a simple random sampling technique was used to select a total of 1 776 students and 250 staff, while 32 students and four staff were conveniently sampled during the qualitative phase. The data for this study were collected using an online survey in the quantitative phase, and semi-structured interviews and document reviews in the qualitative phase. The findings of this investigation revealed that violence happened in six main configurations, namely student-on-student violence, staff-on-student violence, staff-on-staff violence, student-on-staff violence, self-directed violence, and protest-related violence. In addition, the findings revealed diverse causes of violence in universities, chief of which were alcohol and drug abuse, poor security, the abuse of power or authority, impunity, and psychosocial factors, among others. Factors that impeded the recording of violence in universities included the normalisation of violence, a lack of consequences for the perpetrators, a lack of procedural awareness, cronyism and brotherhoods, and a lack of protection from reprisal for reporting perpetrators. The production of violence in South African universities was also found to be significantly shaped by wider structures that included sexuality, gender, age, socioeconomic status, and race and ethnicity. These structures were found to be prominent in increasing the likelihood of violence being perpetrated. Based on the reported findings, the study moved to recommend that, in order to reduce experiences of violence in South African universities, institutions adopt multidimensional approaches to combatting this scourge. The fact that violence was noted to occur in multiple configurations, means multiple viewpoints are required to reduce and ultimately combat it. This calls for a multi-stakeholder approach that transcends a reliance on the traditional university policymakers, and a concerted consultative process to formulate and renew policies that can help to address university violence. The study further recommended that reporting structures be decentralised at universities, in a bid to improve the smoothness of related processes. In this respect, it will be essential for universities to consider setting up anonymous reporting platforms online, to move with the times and ensure more urgent responses, as opposed to a continued reliance on present systems that are replete with red tape. Additionally, universities may consider outsourcing divisions that deal with violence reporting, to minimise conflicts of interest when dealing with such cases. The researcher concluded that violence in universities threatens the very purpose of tertiary education – members of the university community must be able to freely pursue their aspirations in peaceful environments. As such, for as long as campuses experience violence in any of its varied forms, a proverbial dark cloud will forever frustrate the quest for quality and transformative education that has the potential to reverse-engineer inequality, poverty, and underdevelopment in South Africa, as contemplated in various development plans. , Thesis (PhD) -- Faculty of Education, 2021
- Full Text:
- Date Issued: 2021
- Authors: Mutongoza, Bonginkosi Hardy https://orcid.org/0000-0002-2939-1274
- Date: 2021
- Subjects: Education, Higher -- Political aspects , Universities and colleges -- South Africa , Campus violence
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27909 , vital:70816
- Description: The high levels of violence that plague South Africa’s universities are symptomatic of an education system that is under attack, with institutions of higher learning not reflecting the peacefulness and safety which are oftentimes associated with the pursuit of learning. While violence in societies and educational institutions globally continues to intensify in viciousness and frequency, this is especially worrisome for South Africa, a country regarded as one of the most violent in the world. South African education institutions are admittedly extremely violent, yet there are relatively few mechanisms to enable the verification of trends in violence, or to cross-reference and compare incidents, thus making the reduction of violence problematic. The contention is that the general outlook of violence at educational institutions appears to echo the relentless violence which haunts South African communities in general. Against this background, the current study sought to explore the nature of violence in South African universities. To achieve this, the study was guided by an exploration of student and staff experiences of violence in universities, the causes of violence in such sites, and the recording thereof. Underpinned by a pragmatist paradigm, this study utilised a mixed-methods approach to ‘get under the skin’ of the problem of violence in universities. Within the mixed-methods approach, the study employed a single-phase convergent design, which enabled the researcher to reach comprehensive conclusions on violence in universities, by merging and comparing qualitative and quantitative datasets. In the quantitative phase of the study, a simple random sampling technique was used to select a total of 1 776 students and 250 staff, while 32 students and four staff were conveniently sampled during the qualitative phase. The data for this study were collected using an online survey in the quantitative phase, and semi-structured interviews and document reviews in the qualitative phase. The findings of this investigation revealed that violence happened in six main configurations, namely student-on-student violence, staff-on-student violence, staff-on-staff violence, student-on-staff violence, self-directed violence, and protest-related violence. In addition, the findings revealed diverse causes of violence in universities, chief of which were alcohol and drug abuse, poor security, the abuse of power or authority, impunity, and psychosocial factors, among others. Factors that impeded the recording of violence in universities included the normalisation of violence, a lack of consequences for the perpetrators, a lack of procedural awareness, cronyism and brotherhoods, and a lack of protection from reprisal for reporting perpetrators. The production of violence in South African universities was also found to be significantly shaped by wider structures that included sexuality, gender, age, socioeconomic status, and race and ethnicity. These structures were found to be prominent in increasing the likelihood of violence being perpetrated. Based on the reported findings, the study moved to recommend that, in order to reduce experiences of violence in South African universities, institutions adopt multidimensional approaches to combatting this scourge. The fact that violence was noted to occur in multiple configurations, means multiple viewpoints are required to reduce and ultimately combat it. This calls for a multi-stakeholder approach that transcends a reliance on the traditional university policymakers, and a concerted consultative process to formulate and renew policies that can help to address university violence. The study further recommended that reporting structures be decentralised at universities, in a bid to improve the smoothness of related processes. In this respect, it will be essential for universities to consider setting up anonymous reporting platforms online, to move with the times and ensure more urgent responses, as opposed to a continued reliance on present systems that are replete with red tape. Additionally, universities may consider outsourcing divisions that deal with violence reporting, to minimise conflicts of interest when dealing with such cases. The researcher concluded that violence in universities threatens the very purpose of tertiary education – members of the university community must be able to freely pursue their aspirations in peaceful environments. As such, for as long as campuses experience violence in any of its varied forms, a proverbial dark cloud will forever frustrate the quest for quality and transformative education that has the potential to reverse-engineer inequality, poverty, and underdevelopment in South Africa, as contemplated in various development plans. , Thesis (PhD) -- Faculty of Education, 2021
- Full Text:
- Date Issued: 2021
Synthesis of novel inhibitors of 1-Deoxy-D-xylulose-5-phosphate reductoisomerase as potential anti-malarial lead compounds
- Authors: Mutorwa, Marius Kudumo
- Date: 2011
- Subjects: Antimalarials -- Development Plasmodium falciparum Malaria -- Chemotherapy Drug development Lead compounds Phosphonates Phosphonic acids Ligands
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4372 , http://hdl.handle.net/10962/d1005037
- Description: This research has focused on the development of novel substrate mimics as potential DXR inhibitors of 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR), an essential enzyme in the mevalonate-independent pathway for the biosynthesis of isoprenoids in Plasmodium falciparum. DXR mediates the isomerisation and reduction of 1-deoxy-D-xylulose-5-phosphate (DOXP) into 2C-methyl-D-erithrytol 4-phosphate (MEP) and has been validated as an attractive target for the development of novel anti-malarial chemotherapeutic agents. Reaction of various amines with specially prepared 4-phosphonated crotonic acid in the presence of the peptide coupling reagent, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC), has afforded a series of amido-phosphonate esters in moderate to good yields (48% - 73%) which, using a RuCl₃/CeCl₃/NaIO₄ catalyst system, have been dihydroxylated to furnish the dihydroxy-amido phosphonate ester pro-drugs; subsequent hydrolysis under microwave irradiation has afforded the corresponding phosphonic acids. A second series of potential inhibitors viz., 3-substituted aniline-derived phosphonate esters, their corresponding phosphonic acids and mono-sodium salts, have also been successfully synthesised. In these compounds, the essential functional groups are separated by one, two, three or four methylene groups, Deprotonation of the 3-substituted aniline substrates, followed by reaction with the appropriate ω-chloroalkanoyl chloride produced the ω-chloroamide intermediates, which were subjected to the Michaelis-Arbuzov reaction to afford the diethyl phosphonate esters in moderate to good yields (48% - 74%). Microwave-assisted TMSBrmediated cleavage of the phosphonate esters furnished the phosphonic acids, neutralisation of which afforded the mono-sodium salts. Furan-derived phosphate esters and phosphonic acids have been prepared as conformationally-restricted DOXP analogues. Functionalization at C-5 of the trityl-protected furan was achieved using the Vilsmeier-Haack formylation and Friedel-Crafts acylation reactions and, following de-tritylation, phosphorylation and oximation, using hydroxylamine hydrochloride, the novel oxime derivatives have been isolated as a third series of potential DXR inhibitors in very good yields (87% - 96%). Finally, in order to exploit an additional binding pocket in the PƒDXR active site, a series of N-benzylated phosphoramidic derivatives were obtained in seven steps from the starting material, diethyl phosphoramidate. The known inhibitors, fosmidomycin and its acetyl derivative FR900098, were also successfully synthesised as standards for STD-NMR binding and inhibition assays. In all, over 200 compounds (136 novel) have been prepared and appropriately characterised using 1-and 2-D NMR and IR spectroscopic analysis and, where necessary, HRMS or combustion analysis. Saturation Transfer Difference (STD) protein-NMR experiments, undertaken using selected compounds, have revealed binding of most of the ligands examined to EcDXR. Computersimulated docking studies have also been used to explore the preferred ligand-binding conformations and interactions between the ligands and essential DXR active-site residues, while DXR-enzyme inhibition assays of selected synthesised ligands have revealed certain patterns of inhibitory activity.
- Full Text:
- Date Issued: 2011
- Authors: Mutorwa, Marius Kudumo
- Date: 2011
- Subjects: Antimalarials -- Development Plasmodium falciparum Malaria -- Chemotherapy Drug development Lead compounds Phosphonates Phosphonic acids Ligands
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4372 , http://hdl.handle.net/10962/d1005037
- Description: This research has focused on the development of novel substrate mimics as potential DXR inhibitors of 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR), an essential enzyme in the mevalonate-independent pathway for the biosynthesis of isoprenoids in Plasmodium falciparum. DXR mediates the isomerisation and reduction of 1-deoxy-D-xylulose-5-phosphate (DOXP) into 2C-methyl-D-erithrytol 4-phosphate (MEP) and has been validated as an attractive target for the development of novel anti-malarial chemotherapeutic agents. Reaction of various amines with specially prepared 4-phosphonated crotonic acid in the presence of the peptide coupling reagent, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC), has afforded a series of amido-phosphonate esters in moderate to good yields (48% - 73%) which, using a RuCl₃/CeCl₃/NaIO₄ catalyst system, have been dihydroxylated to furnish the dihydroxy-amido phosphonate ester pro-drugs; subsequent hydrolysis under microwave irradiation has afforded the corresponding phosphonic acids. A second series of potential inhibitors viz., 3-substituted aniline-derived phosphonate esters, their corresponding phosphonic acids and mono-sodium salts, have also been successfully synthesised. In these compounds, the essential functional groups are separated by one, two, three or four methylene groups, Deprotonation of the 3-substituted aniline substrates, followed by reaction with the appropriate ω-chloroalkanoyl chloride produced the ω-chloroamide intermediates, which were subjected to the Michaelis-Arbuzov reaction to afford the diethyl phosphonate esters in moderate to good yields (48% - 74%). Microwave-assisted TMSBrmediated cleavage of the phosphonate esters furnished the phosphonic acids, neutralisation of which afforded the mono-sodium salts. Furan-derived phosphate esters and phosphonic acids have been prepared as conformationally-restricted DOXP analogues. Functionalization at C-5 of the trityl-protected furan was achieved using the Vilsmeier-Haack formylation and Friedel-Crafts acylation reactions and, following de-tritylation, phosphorylation and oximation, using hydroxylamine hydrochloride, the novel oxime derivatives have been isolated as a third series of potential DXR inhibitors in very good yields (87% - 96%). Finally, in order to exploit an additional binding pocket in the PƒDXR active site, a series of N-benzylated phosphoramidic derivatives were obtained in seven steps from the starting material, diethyl phosphoramidate. The known inhibitors, fosmidomycin and its acetyl derivative FR900098, were also successfully synthesised as standards for STD-NMR binding and inhibition assays. In all, over 200 compounds (136 novel) have been prepared and appropriately characterised using 1-and 2-D NMR and IR spectroscopic analysis and, where necessary, HRMS or combustion analysis. Saturation Transfer Difference (STD) protein-NMR experiments, undertaken using selected compounds, have revealed binding of most of the ligands examined to EcDXR. Computersimulated docking studies have also been used to explore the preferred ligand-binding conformations and interactions between the ligands and essential DXR active-site residues, while DXR-enzyme inhibition assays of selected synthesised ligands have revealed certain patterns of inhibitory activity.
- Full Text:
- Date Issued: 2011
Representation of history in Tsitsi Dangarembga’s trilogy – nervous conditions, the book of not and this mournable body
- Authors: Mutsambi, Tinoten
- Date: 2022-12
- Subjects: Women and literature --Zimbabwe--History --20th century , Identification (Psychology) in literature
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59446 , vital:62116
- Description: This dissertation analyses Tsitsi Dangarembga’s novels Nervous Conditions (1988), The Book of Not (2006) and This Mournable Body (2018). The three novels under study capture a great deal of Zimbabwe’s history, spanning from the colonial era as depicted in Nervous Conditions, through the period before and after independence in The Book of Not, to the contemporary post independence Zimbabwe in This Mournable Body. Reading these three novels and analysing their depiction of historic events is important as they cover significant and contested epochs in Zimbabwean history, making it possible for us to examine the intersection between history and literature. Moreover, since most Zimbabwean narratives that depict the country’s history have been male authored, Dangarembga’s novels offer an interesting opportunity to study the depiction of history from a female perspective , Thesis (MA) -- Faculty of Humanities, School of Language, Media and Communication, 2022
- Full Text:
- Date Issued: 2022-12
- Authors: Mutsambi, Tinoten
- Date: 2022-12
- Subjects: Women and literature --Zimbabwe--History --20th century , Identification (Psychology) in literature
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/59446 , vital:62116
- Description: This dissertation analyses Tsitsi Dangarembga’s novels Nervous Conditions (1988), The Book of Not (2006) and This Mournable Body (2018). The three novels under study capture a great deal of Zimbabwe’s history, spanning from the colonial era as depicted in Nervous Conditions, through the period before and after independence in The Book of Not, to the contemporary post independence Zimbabwe in This Mournable Body. Reading these three novels and analysing their depiction of historic events is important as they cover significant and contested epochs in Zimbabwean history, making it possible for us to examine the intersection between history and literature. Moreover, since most Zimbabwean narratives that depict the country’s history have been male authored, Dangarembga’s novels offer an interesting opportunity to study the depiction of history from a female perspective , Thesis (MA) -- Faculty of Humanities, School of Language, Media and Communication, 2022
- Full Text:
- Date Issued: 2022-12
The reliability of firearm identification in South Africa : a comparative perspective
- Authors: Mutsavi, Tanyarara
- Date: 2018
- Subjects: Forensic sciences Firearms -- Identification
- Language: English
- Type: Thesis , Masters , Law
- Identifier: http://hdl.handle.net/10353/10850 , vital:35860
- Description: Crime has become a well-known and worrying fact of life in South Africa. It constrains the ability of citizens to participate actively and meaningfully in all spheres of social and economic life. In many cases where a crime is committed, a firearm is involved. In order to fight gun crime there is a need for the perpetrators to be prosecuted. For prosecution to take place, there must be evidence to link the suspects to the committed crime. This is when firearm identification as a form of expert scientific evidence comes into play. This type of evidence links the bullets and cartridges recovered from the crime scene to the suspect.s firearms through the process of matching which is done by using a comparison microscope. Expert scientific evidence like firearm identification evidence, needs to be scientifically reliable because unreliable evidence may lead to the conviction of the innocent and exoneration of the guilty. Case law, authoritative reports and other literature have shown that firearm identification is not scientific and therefore it is not reliable. This is a disturbing position, considering the fact that this type of evidence is still being used in courts and no alternative has been found thus far to replace it. This study therefore proposes some reforms and recommendations which have been registered in authoritative reports which assist South Africa in dealing with firearm identification evidence. To achieve reliability, some writers have suggested that South Africa should adopt the US approach with regard to admissibility where judges play a .gate keeping. role by making sure that expert evidence is reliable before it enters the court. However, this study argues that scientific reliability, in South Africa, should not be a criterion for admissibility, but should rather be a central factor in deciding what weight should be attached to the expert evidence given in a particular case. The reason for this is that, in South Africa, the jury system is not used and therefore the judge does not have to exercise a .gate keeping. role, as he or she will be the final arbiter as to whether the evidence is reliable. In this context, reliability is considered during cross-examination. Cross-examination by the defence is crucial and this study proposes some possible cross-examination questions that can be helpful in testing the reliability of firearm identification evidence.
- Full Text:
- Date Issued: 2018
- Authors: Mutsavi, Tanyarara
- Date: 2018
- Subjects: Forensic sciences Firearms -- Identification
- Language: English
- Type: Thesis , Masters , Law
- Identifier: http://hdl.handle.net/10353/10850 , vital:35860
- Description: Crime has become a well-known and worrying fact of life in South Africa. It constrains the ability of citizens to participate actively and meaningfully in all spheres of social and economic life. In many cases where a crime is committed, a firearm is involved. In order to fight gun crime there is a need for the perpetrators to be prosecuted. For prosecution to take place, there must be evidence to link the suspects to the committed crime. This is when firearm identification as a form of expert scientific evidence comes into play. This type of evidence links the bullets and cartridges recovered from the crime scene to the suspect.s firearms through the process of matching which is done by using a comparison microscope. Expert scientific evidence like firearm identification evidence, needs to be scientifically reliable because unreliable evidence may lead to the conviction of the innocent and exoneration of the guilty. Case law, authoritative reports and other literature have shown that firearm identification is not scientific and therefore it is not reliable. This is a disturbing position, considering the fact that this type of evidence is still being used in courts and no alternative has been found thus far to replace it. This study therefore proposes some reforms and recommendations which have been registered in authoritative reports which assist South Africa in dealing with firearm identification evidence. To achieve reliability, some writers have suggested that South Africa should adopt the US approach with regard to admissibility where judges play a .gate keeping. role by making sure that expert evidence is reliable before it enters the court. However, this study argues that scientific reliability, in South Africa, should not be a criterion for admissibility, but should rather be a central factor in deciding what weight should be attached to the expert evidence given in a particular case. The reason for this is that, in South Africa, the jury system is not used and therefore the judge does not have to exercise a .gate keeping. role, as he or she will be the final arbiter as to whether the evidence is reliable. In this context, reliability is considered during cross-examination. Cross-examination by the defence is crucial and this study proposes some possible cross-examination questions that can be helpful in testing the reliability of firearm identification evidence.
- Full Text:
- Date Issued: 2018
Examining practices in the preparation of science teachers in two teachers' colleges in Zimbabwe
- Authors: Mutseekwa, Christopher
- Date: 2017
- Subjects: College teachers -- Training of Science teachers Science -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/9434 , vital:34351
- Description: Despite the vast research in science teacher preparation world-wide, little is known about secondary school science teacher preparation practices in Zimbabwe. The overall image that emerges from literature is that of challenges such as lack of programme coherence, policy inconsistence, poor funding for reform-based science teaching programmes, limited knowledge on issues critical to science teaching and learning, and mediocre performance of science teacher education graduates. Such challenges demand an examination of science teacher educator practices in order to identify relevant science teaching knowledge and skills the educators possess, an establishment of how their practices match standards and expectations in science teacher preparation, and an assessment of dimensions of the science teaching theory-practice gap. This study examined teacher education practices in the preparation of science teachers in two teachers’ colleges in Zimbabwe. The study is anchored in Miller, Ohana and Hanely’s (2013) framework for science teacher preparation called the Model of Research-Based Education for Teachers (MORE for Teachers). An exploratory sequential mixed methods design, within the post-positivist paradigm, was used to guide the collection of quantitative and qualitative data. Eighteen (18) Science teacher educators and 106 Science student teachers were selected from two Teachers’ Colleges through purposive sampling. A questionnaire was used to collect quantitative data while interviews, group discussions and documents were used to generate qualitative data. Qualitative data were used to buttress and expand quantitative findings. The major findings from the study were that, despite their limited research activity, teacher educators were well grounded in content knowledge in their various areas of specialisation. Although some standards and guidelines from syllabi, schools and the University of Zimbabwe, Department of Teacher Education (UZ-DTE) requirements on science teaching were followed, the teacher educators were not very clear about the extent to which reform-based science teaching guidelines influenced their work. Other findings revealed that the science teacher educators did a lot to prepare student teachers for Attachment Teaching Practice but did less when the trainees were eventually in the actual practice. It was also observed that science teacher education occurred with in a context where funding for teaching and learning was a challenge. The study’s major recommendation is the need for identifying preparation approaches that adequately equip science teacher educators with the relevant knowledge, skills and core practices that assist the development of coherent programmes.
- Full Text:
- Date Issued: 2017
- Authors: Mutseekwa, Christopher
- Date: 2017
- Subjects: College teachers -- Training of Science teachers Science -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/9434 , vital:34351
- Description: Despite the vast research in science teacher preparation world-wide, little is known about secondary school science teacher preparation practices in Zimbabwe. The overall image that emerges from literature is that of challenges such as lack of programme coherence, policy inconsistence, poor funding for reform-based science teaching programmes, limited knowledge on issues critical to science teaching and learning, and mediocre performance of science teacher education graduates. Such challenges demand an examination of science teacher educator practices in order to identify relevant science teaching knowledge and skills the educators possess, an establishment of how their practices match standards and expectations in science teacher preparation, and an assessment of dimensions of the science teaching theory-practice gap. This study examined teacher education practices in the preparation of science teachers in two teachers’ colleges in Zimbabwe. The study is anchored in Miller, Ohana and Hanely’s (2013) framework for science teacher preparation called the Model of Research-Based Education for Teachers (MORE for Teachers). An exploratory sequential mixed methods design, within the post-positivist paradigm, was used to guide the collection of quantitative and qualitative data. Eighteen (18) Science teacher educators and 106 Science student teachers were selected from two Teachers’ Colleges through purposive sampling. A questionnaire was used to collect quantitative data while interviews, group discussions and documents were used to generate qualitative data. Qualitative data were used to buttress and expand quantitative findings. The major findings from the study were that, despite their limited research activity, teacher educators were well grounded in content knowledge in their various areas of specialisation. Although some standards and guidelines from syllabi, schools and the University of Zimbabwe, Department of Teacher Education (UZ-DTE) requirements on science teaching were followed, the teacher educators were not very clear about the extent to which reform-based science teaching guidelines influenced their work. Other findings revealed that the science teacher educators did a lot to prepare student teachers for Attachment Teaching Practice but did less when the trainees were eventually in the actual practice. It was also observed that science teacher education occurred with in a context where funding for teaching and learning was a challenge. The study’s major recommendation is the need for identifying preparation approaches that adequately equip science teacher educators with the relevant knowledge, skills and core practices that assist the development of coherent programmes.
- Full Text:
- Date Issued: 2017