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An assessment of impacts of landfill composition on soil quality, heavy metal and plant health : a case of Lumberstewart landfill in Bulawayo, ZimbabweMakuleke, Peace 02 1900 (has links)
Landfills have served as the major sites for waste disposal in both developed and developing countries. Upon closure of a landfill site, the surface could be converted to a golf course, recreation park, playground, animal refuge, tennis court and industrial site. Even when closed, landfills still have the potential to contaminate the surrounding environment as a result of the migration of leachate from decomposing waste contained in the site. This study focused on assessing the
impacts of a closed landfill on soils and plants at Lumberstewart closed landfill site in Bulawayo, Zimbabwe. Soil samples were collected at three different depths (0-30 cm, 30 - 60 cm and 60-90 cm) at the landfill and a control site. The soil samples were analysed for their texture, pH, electrical conductivity, organic matter content, cation exchange capacity and concentrations of Cd, Cu, Cr, Fe, Ni and Zn. Samples of jimson weed and pigweed growing at the closed landfill and the control
site were collected from the same sites where soil samples were collected, and the concentrations of the same set of heavy metals in these weeds determined. Soil samples were digested using EPA
method 3050B: Acid Digestion of Sediments, Sludge and soils whereas nitric acid and hydrogen peroxide was used for digestion of plant samples. Both plant and soil digests were analyzed for heavy metals concentrations using Flame Atomic Absorption Spectrometry (AAS). Soils from the landfill as well as the control site had a high content of sand with soil pH values which were alkaline. The electrical conductivity values of the soil samples were relatively low ranging from 0.39 to 1.67 dS/m, indicating low levels of salts in soils at the landfill. The concentrations of heavy metals at the closed landfill site were higher than the control site. Heavy metals concentrations in soils at the closed landfill followed the order Fe>Zn>Cu>Cr>Ni>Cd. Results indicated that Fe was exceptionally higher than the other metals with concentration values averaging 45690±17255 mg/kg. Cadmium on the other hand had the least concentration with values of 0.01±0.00 mg/kg.
Values of Enrichment Factors of heavy metals around the soil at different depths indicated that the enrichment of heavy metals increased with depth at the landfill up to 30-60 cm after which a
decrease was observed. Values for heavy metal Contamination Factor of soils around the landfill ranged from low concentration (CF<1) to very high concentration (CF>6). The Pollution Load Index (PLI) values for the soil at the Lumberstewart landfill indicated that all sites were polluted (PLI>1). Site 6 had significantly higher mean concentration of heavy metals in soils at the landfill whereas site 11 had the least. The concentrations of Cd and Ni in soils at the landfill were below
permissible limits of South African National Norms and Standards (NNS) as prescribed by NEMA (2008) in South Africa whereas Cr, Cu and Zn in soils were above the NNS permissible limits.
Heavy metal concentrations in soils at the landfill were above World Health (WHO) permissible limits except for Cd which was equal (0.01 mg/kg) to the permissible values of Cd in the soils at sites 5, 8, 9, 10, 11 and 12. Mean concentrations of heavy metals in jimson weed and pigweed were in the order Fe>Zn>Cu>Cr>Ni>Cd. The concentrations of Cd, Cr, Cu, Fe and Zn in both plants from all sites at the landfill were significantly higher than the control site. Heavy metal transfer coefficient for both plants indicated that heavy metal uptake was more species dependent than soil heavy metal concentration dependent. The results from this research indicate that though the Lumberstewart Landfill has been closed, it is still affecting the soils in the vicinity of the
landfill. Plants and water around the Lumberstewart closed landfill could be at risk from heavy metal contamination. High concentrations of heavy metals observed in the soil could present a health risk to communities should they decide to use the landfill site for arable purposes. / Environmental Sciences / M. Sc. (Environmental Science)
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Towards a comprehensive model of formative assessment for self-regulated learning : a study of practice at Solusi University in ZimbabweThebe, Christopher Newa 08 1900 (has links)
The main purpose of this study was to explore what the true worth or value of formative assessment was in the context of self-regulated learning. It sought to find out how the quality of formative assessment practices is characterised by the lecturers and students at Solusi University, Zimbabwe. The evidence from this was to be compared with what the course outlines and related documents suggested regarding the quality of formative assessment practices at Solusi University. The study also intended to find out how the self-regulated learning approach could add value to formative assessment practices in this university. This became important on account of the major functions of assessment in general and continuous assessment in particular to act as a barometer of the quality of learning going on in an institution. The qualitative research approach was adopted using interviews and analysis of formative assessment documents such as the course outlines as well as quizzes and tests. It emerged from the findings that formative assessment practices at Solusi University are characterised by performance as the major issue. Performance is the overemphasis of marks and scores whilst ignoring the other major learning aspects of formative assessment. This is so because there is no assessment guide to inform on the criteria and standards to follow. The course objectives were based on the lower-order levels of learning which dwell more on rote learning for the sake of grading or performance. Even though assignments were preferred, more quizzes were being used so as to garner enough marks. This picture could be altered if the theories that underpin this study namely, Self-Regulated Learning, the BEAR Assessment System and Bloom’s Taxonomy of Learning Objectives respectively were applied in the formative assessment practices in the university. This would allow for transparency and collaboration in the formative assessment process with students being active participants. In this case the self-regulated learning approach would have been used to enhance the quality of formative assessment practices. / Educational Leadership and Management / D. Ed. (Education Management)
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An investigation into how Zimbabwe's Bulawayo viewers negotiate the gay storyline in GenerationsKhumalo, Senziwani January 2015 (has links)
This study seeks to evaluate how aspects of religion, culture, political context, education and class, amongst others, impact on the manner with which Zimbabwe’s Bulawayo residents make sense of media messages which explore issues of homosexuality, as encountered in the soap opera Generations. This is against the backdrop of Zimbabwean legislation, such as the Sexual Deviancy Act, which criminalises homosexuality and the state victimisation of gays and lesbians in this country. The inclusion of homosexual liberties was rejected by all political parties and both public and private media in the recent drafting of a new rule of law. The legislation, including gay rights exclusion in the new constitution, and state action has perpetuated an impression that Zimbabwe is a deeply homophobic society. As a starting point the study examines the claims of the media imperialism thesis which supposes an all-consuming power of western media and next examines Straubhaar’s thesis of ‘cultural proximity’ which argues that there is often a preference for regional media, which is proximate to viewers’ local culture, language and identity. The study explores the prominence of South Africa as a regional media player and that proximate identities with some cultures in that country have played a role in drawing some Bulawayo viewers to South African television, as they feel slighted by Zimbabwean media. Utilising qualitative research methods, the study explores whether or not the representation of gay images on this South African soap opera provides viewers with opportunities for ‘symbolic distancing’. The concept highlights that when people have insight into lifestyles that are different from their own, they use that as a resource to critically analyse their own lives and cultural understandings. The study evaluates if Bulawayo viewers’ sentiments towards homosexuality has been challenged and changed through their interface with the soap opera, Generations.
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Experiences of drug adherence by HIV infected adolescents in Bulawayo, ZimbabweNgundu, Grace 12 1900 (has links)
This study articulates the lived experiences regarding drug adherence by adolescents in Zimbabwe. The study was conducted in Bulawayo, the second largest city in Zimbabwe to aid understanding the experiences the adolescents go through as they try to live as normal a life as possible despite them having the most stigmatised condition in the country in particular and the world at large. A phenomenological inquiry was undertaken using Wertz’s (1983, 2005, 2011) empirical psychological reflection approach for data analysis, after utilizing purposive, convenience and criterion sampling techniques to select thirteen (13) adolescents who were on ART and were in good health and also willing to take part in the study. Data were generated using in-depth qualitative interviews and the interviews continued until data redundancy was reached. The interview proceedings were digitally audio-recorded in addition to taking field notes and these were transcribed verbatim. Data analysis occurred at idiographic and nomothetic levels according to the principles of Wertz’s empirical psychological reflection. Thematic analysis of the research data revealed six (6) themes namely:
Treatment fatigue.
Delay in getting to know own HIV status.
Stigma
Disability (visual impairment).
Lack of support.
Religious beliefs (church).
Wholeness emerged as the single most encompassing and accommodating concept that united the various themes and categories. It further grounded adolescents’ experiences regarding drug adherence and coping with challenges associated with HIV. The findings add substantial knowledge about how adolescents experience drug adherence. Important recommendations are made and guidelines that may be used to increase adolescents’ resilience to challenges of being HIV infected are suggested. / Health Studies / D. Litt. et Phil. (Nursing)
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A study of the involvement and participation of employees in a workplace HIV-prevention programme at a Bulawayo tyre manufacturing firmNcube, Charlie 06 1900 (has links)
Employee involvement and participation in HIV-prevention interventions at the workplace remains a barrier to effective programme implementation, which contributes significantly to programme failure and the consequent continued spread of HIV among employees at the workplace. This study explores employee involvement and participation in HIV-prevention interventions at a Bulawayo tyre manufacturing firm. It assesses factors affecting employee involvement and participation in these interventions, and examines the implications of these findings for programme implementation. I used a semi-standardised interview schedule to conduct in-depth, face-to-face qualitative interviews and a self-administered questionnaire to collect quantitative data. The responses showed the nature of employee involvement in HIV-prevention at the firm was at a co-option level, and the type of participation was mere token participation. I recommended that the firm should develop a clear understanding of the importance of stakeholder involvement in HIV-prevention programmes. / Sociology / M.A. (Social Behaviour Studies in HIV/AIDS)
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Managing parental involvement with education in ZimbabweNgwenya, Victor Chaboneka 11 1900 (has links)
Parental involvement (PI) in school governance is an international acclaimed worldwide practice and is viewed as a major topic in current educational reforms. This study investigated the management of PI programmes in public schools within the jurisdiction of Bulawayo Metropolitan Province in Zimbabwe. The Total Quality Management (TQM) framework was employed as attempts were made to bring all stakeholders on board in the pursuit of quality education. To achieve this thrust, literature on the historical developments which obtained in the United States of America, China and South Africa on the phenomenon was reviewed. Further to that, the models of PI which influenced the adoption of what has obtained in Zimbabwean public schools were cited too. In the process the legal statutes which mandated PI programmes in operation were explored in detail. Data for this study was obtained by means of a quantitative approach involving questionnaires with precoded responses from a sample of 51 education managers and 47 school governors. The major findings of the empirical investigation was that PI is juridical and the bulk of the parents want to be engaged in both formal and informal academic issues of the school business as long as such engagement is well planned and organised. This collaboration of the minds and efforts does not only enhance the management style of the education manager but also the realisation of academic excellence in schools as both parties collectively embark on a quality conscious crusade. Generally, parents in this province were found to be less meddlesome when it comes to the professional governance of the school system, thus making the bulk of schools in this region “conflict free zones”. Disturbing though was the failure by parents to be engaged in the conception of the school vision and mission statement. Finally, the engagement of parents in the management of PI programmes has been recommended in this thesis as it has been found to be genuine, transparent, human resource oriented, dialogical and accountable if citizen participation in school governance is to be envisaged within a democratic framework. Orientation workshops and seminars can be manned for this purpose if home-brewed PI models meant to enhance ownership, commitment and motivation are to be realised. In that way, a customised educational menu may be approximated. / Teacher Education / D. Ed. (Education Management)
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Home-based agricultural production as a food security coping strategy for urban households: A case of Bulawayo, ZimbabweZiga, Metron January 2018 (has links)
Magister Artium (Development Studies) - MA(DVS) / Urban food insecurity in Zimbabwe is a serious stumbling block to the attainment of sustainable
urban livelihoods. The casual factors of the urban food crisis in the country include widespread
poverty, an unstable economic environment, a reduction of viable employment opportunities and
climate-related shocks. The cash-based nature of urban livelihoods, coupled with the economic
crisis in Zimbabwe has generated a serious challenge for urban households as basic food prices
have increased to such an extent that most urban dwellers experience difficulties in purchasing
food. In a context of high poverty and unemployment, urban agriculture has emerged as a food
security and livelihood diversification strategy for many poor urban households. Whilst there is
a growing body of literature focusing on urban agriculture in Zimbabwe, it has largely focused
on community and allotment gardens. There has, however, been little empirical investigation of
home-based (or backyard) agricultural production. While backyard gardens have always
existed, they have grown in response to poor economic conditions and adverse livelihood
conditions. The Bulawayo Municipal Council Agriculture Policy has facilitated this expansion,
especially the growth of poultry production. This study addresses this gap in the literature by
investigating the contribution of home-based agricultural production in promoting household
food security and livelihoods in Bulawayo. A mixed methods approach was utilised for the
purposes of the study. In the quantitative part of the study, 99 households were randomly
sampled whilst 10 purposively sampled interviews with urban farmers, 3 key informant
interviews and 1 focus group discussion were employed for the qualitative part of the study. The
Sustainable Livelihoods Framework, which was used as a theoretical framework of the study,
helped to unpack the various livelihood diversification strategies and asset portfolios that poor
people depend on for their well-being. Contrary to our initial assumption, the results of the study
revealed that 71 percent of the households in the study area were food secure. The findings of the
study reveal that home-based urban agriculture is an important food security coping strategy in
Bulawayo. The high levels of food security in Bulawayo should however, not be solely attributed
to the practice of urban agriculture as 75 percent of the respondents bought their food from
supermarkets and other shops. Urban agriculture thus plays a complimentary role to household
food security in Bulawayo.
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A study of the involvement and participation of employees in a workplace HIV-prevention programme at a Bulawayo tyre manufacturing firmNcube, Charlie 06 1900 (has links)
Employee involvement and participation in HIV-prevention interventions at the workplace remains a barrier to effective programme implementation, which contributes significantly to programme failure and the consequent continued spread of HIV among employees at the workplace. This study explores employee involvement and participation in HIV-prevention interventions at a Bulawayo tyre manufacturing firm. It assesses factors affecting employee involvement and participation in these interventions, and examines the implications of these findings for programme implementation. I used a semi-standardised interview schedule to conduct in-depth, face-to-face qualitative interviews and a self-administered questionnaire to collect quantitative data. The responses showed the nature of employee involvement in HIV-prevention at the firm was at a co-option level, and the type of participation was mere token participation. I recommended that the firm should develop a clear understanding of the importance of stakeholder involvement in HIV-prevention programmes. / Sociology / M.A. (Social Behaviour Studies in HIV/AIDS)
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Managing parental involvement with education in ZimbabweNgwenya, Victor Chaboneka 11 1900 (has links)
Parental involvement (PI) in school governance is an international acclaimed worldwide practice and is viewed as a major topic in current educational reforms. This study investigated the management of PI programmes in public schools within the jurisdiction of Bulawayo Metropolitan Province in Zimbabwe. The Total Quality Management (TQM) framework was employed as attempts were made to bring all stakeholders on board in the pursuit of quality education. To achieve this thrust, literature on the historical developments which obtained in the United States of America, China and South Africa on the phenomenon was reviewed. Further to that, the models of PI which influenced the adoption of what has obtained in Zimbabwean public schools were cited too. In the process the legal statutes which mandated PI programmes in operation were explored in detail. Data for this study was obtained by means of a quantitative approach involving questionnaires with precoded responses from a sample of 51 education managers and 47 school governors. The major findings of the empirical investigation was that PI is juridical and the bulk of the parents want to be engaged in both formal and informal academic issues of the school business as long as such engagement is well planned and organised. This collaboration of the minds and efforts does not only enhance the management style of the education manager but also the realisation of academic excellence in schools as both parties collectively embark on a quality conscious crusade. Generally, parents in this province were found to be less meddlesome when it comes to the professional governance of the school system, thus making the bulk of schools in this region “conflict free zones”. Disturbing though was the failure by parents to be engaged in the conception of the school vision and mission statement. Finally, the engagement of parents in the management of PI programmes has been recommended in this thesis as it has been found to be genuine, transparent, human resource oriented, dialogical and accountable if citizen participation in school governance is to be envisaged within a democratic framework. Orientation workshops and seminars can be manned for this purpose if home-brewed PI models meant to enhance ownership, commitment and motivation are to be realised. In that way, a customised educational menu may be approximated. / Teacher Education / D. Ed. (Education Management)
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Local government as an enabler of local economic development: A case study of the Bulawayo city councilMoyo, Langton January 2021 (has links)
Magister Administrationis - MAdmin / Local economic development approaches are increasingly being adopted in Africa to address spatial and territorial inequalities in development. Local economic development prioritises grassroots, bottom-up, regional people-centred approaches, and local partnerships to make communities self-reliant. Amidst this approach, the local government sector is encouraged to facilitate this local development process as outlined as the tier of government that supports participatory democracy. As such, most post-independence African countries embarked on a decentralisation drive to position the local government system to play a key role in local communities' development process. This study focused on understanding the part of the local government sector in enabling local economic development. This dissertation sought to investigate how local governments in Zimbabwe can play a role in supporting the process for achieving a local developmental state. The analysis focuses on the local economic development initiatives implemented by the Bulawayo City Council, with specific attention given to the diversification of their economy through the small and medium business enterprises. The theoretical framework of the study was based on the endogenous development approach. This approach is relevant to local economic development and the role of local government in creating local institutions of the process as it emphasises the local determination of choices, control over the planning process, and the local retention of the benefits within the locale. For the field research, a case study of the Bulawayo City Council was necessary to understand and have insights into economic development, local government structures and process in the Bulawayo Metropolitan Area.
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