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The influence of societal marketing on green products consumer awareness in Polokwane City, South Africa
Get PDFRapid economic growth has resulted in excessive consumption of natural resources, which has intensified the deterioration of the ecological environment. There have been increasing public and consumer concerns about environmental issues, which has resulted in an increasing demand for green products. Despite these concerns, businesses in South Africa are not adequately utilising the societal marketing concept to influence consumer awareness of green products. The primary objective of this study was to investigate the influence of societal marketing on consumer awareness of green products in South Africa. A survey-based method was used to test a theoretically grounded set of hypotheses. Convenience sampling was used to select respondents for the study and data was collected using a 64-item online questionnaire issued to 410 respondents in Limpopo Province, South Africa. The Statistical Package for the Social Sciences, version 26.0, was used to analyse data, through descriptive, spearman rank order correlation analysis, multiple regression analysis, independent sample t-test and one-way analysis of variance (ANOVA). The empirical results revealed that respondents’ perceptions of the items in the 6 P’s marketing scale and the consumer awareness five factor model were positive overall. Results of the reliability test revealed that all the reported Cronbach Alpha values (0.51 - 0.71) were above the recommended guideline value of 0.7, or at least, 0.5 in the early stages of research, an indication that the constructs were reliable. All the means of the constructs seemed reasonable. With the exception of product, the results of the spearman rank order correlation analysis revealed that the correlations between price, promotion, policy and partnership with consumer awareness of green products were practically significant (r = 0.50) and practically visible (0.30). Furthermore, with the exception of product, results of the regression analysis revealed a positive significant relationship between price, place, promotion, policy and partnerships with regard to consumer awareness of green products. This implies that price, promotion, policy and partnership significantly influence consumer awareness of green products. There was no significant difference between gender, age, area of residence and level of income with regard to consumer awareness of green products. With regard to the v level of education, results of the one-way ANOVA revealed a practically visible difference between the means of respondents with high school education and vocational education or its equivalent (d=39), a Bachelor’s (d=46) and Master’s degree or higher (d=42). This is an indication that consumers with vocational education or its equivalent, a Bachelor’s, Master's degree, or a higher qualification, were more aware of green products compared to those with a high school level of education. This research provides valuable insights into consumer awareness of green products in South Africa, with emphasis on the influence of societal marketing on consumer awareness of green products. Thus, there is a need for modern-day organisations to consider societal marketing as one of the organisation's competitive marketing strategies to influence society’s awareness of recent environmental challenges, and the benefits of consuming eco-friendly products. Recommendations with regard to areas for future research are provided in the study.Thesis (MCOM) -- Faculty of Business and Economic Science, 202
Uptake and storage of nutrients by primary producers in the Swartkops Estuary
Get PDFEstuaries occur at the interface between the terrestrial and marine environment and as such act as the last ‘filtering’ mechanism prior to nutrient pollution entering the adjacent ocean. This study focused on the Swartkops Estuary which is eutrophic and requires the removal of nutrients. The role of phytoplankton as nutrient filters and storage of nutrients by seagrass and salt marsh was investigated. This study found that phytoplankton temporarily took up a large percentage of dissolved inorganic nitrogen (max. 99%) and dissolved silica (max. 76%) and limited amounts of dissolved inorganic phosphorus (max. 18%). The amount of carbon, nitrogen and phosphorus stored by the salt marsh species Spartina maritima and Salicornia tegetaria and the seagrass species Zostera capensis were determined. It was found that the salt marsh grass Spartina maritima stored the most nutrients (149.61 ± 16.59 N g m-2 ; 105.44 ± 13.41 P g m-2 ; 1690.52 ± 168.90 C g m-2 ), while for the salt marsh succulent Salicornia tegetaria less nutrients were stored (27.01 ± 4.17 N g m-2 ; 22.97 ± 3.21 P g m-2 ; 458.66 ± 69.43 C g m-2 ). Zostera capensis also acted as a nutrient store (22.17 ± 6.94 N g m-2 ; 23.75 ± 4.70 P g m-2 ; 221.10 ± 26.74 C g m-2 ). The macrophytes were able to store nutrients for longer periods and thus prevent these nutrients from being exported into the adjacent ocean. On the contrary, phytoplankton uptake was temporary as the nutrients are released once the bloom decays. Without intervention there will be an increase of harmful algal blooms (HABs) and fish kills in the eutrophic Swartkops Estuary. Nutrient input from upstream wastewater treatment works, canals and stormwater run-off must be reduced. Conservation and management of the seagrass and salt marsh habitats is needed to ensure the long-term storage of nutrientsThesis (MSc) -- Faculty of Science, School of Environmental Sciences, 202
Inventory management decisions for effective inventory management in the South African automotive component manufacturing industry: pre-and since COVID-19
Get PDFGlobalisation has enabled the automotive industry to source various automotive products worldwide. It assisted in increasing the economic growth of countries as it allowed the flow of goods and capital between countries and created many employment opportunities locally. Emerging markets, especially Africa, forms a pivotal part of the global automotive industry. The South African automotive industry as the largest manufacturing and third largest economic sector in South Africa, has been acknowledged by government as a prime source of economic growth. The South African manufacturing businesses, in particular the automotive component manufactures (ACMs) are reliant on inventory for automotive manufacturing. In 2019, the world was hit by the Coronavirus virus outbreak known as COVID-19, which became a global health pandemic that significantly affected the global economy. The pandemic and lockdown measures implemented, seriously affected the automotive industry, in particular inventory management as it led to raw materials inventory shortages due to delivery delays. Therefore, the primary objective of this study was to investigate the inventory management decisions influencing effective inventory management in the South African automotive component manufacturing (SAACM) industry prior to Covid-19 and whether and how it changed since the Covid-19 pandemic. The comprehensive literature review identified four inventory management decisions as independent variables (inventory forecasting, inventory storage, inventory control and inventory staff capabilities management) and effective inventory management as the dependent variable in the proposed hypothesised model. The model was tested to establish the influence of the identified four inventory management decisions on effective inventory management in ACMs prior to Covid-19 and then again since Covid-19. A quantitative research approach was followed to collect data required for the hypothesis testing. Nonprobability sampling in particular judgemental sampling was utilised for this study by selecting respondents employed by ACMs in South Africa as logistics managers, supply chain managers, production supervisors, master production schedulers, cycle count operators and warehouse staff. A selfadministered internet-based questionnaire was used to obtain the data from the target sample comprising 200 respondents, of which 162 were usable for further statistical analysis. Data was analysed first for prior to and then for since Covid-19 using Statistica Version 14 computer software. Exploratory factor analysis (EFA) was used to extract the variables and validate the measuring instrument. The Cronbach's alpha values for reliability were confirmed for each of the variables identified in the two sets of EFAs. All four independent variables (inventory v management decisions) and the dependent variable (effective inventory management) for prior to as well as since Covid-19 were found to be valid and reliable and retained for further analyses. The results of the Pearson product moment correlation coefficients reported mostly weak and moderate associations between variables for both prior to and since Covid-19. The results of the multiple regression analysis (MRA) for prior to Covid-19 found four statistically significant relationships between the four independent variables - inventory forecasting management, inventory storage management, inventory control management and inventory staff capabilities management and the dependent variable effective inventory management. The results of the MRA for since Covid-19 found two statistically significant relationships between two independent variables inventory forecasting management and inventory resource management and the dependent variable effective inventory management. The tested hypothesised model provides a framework for further testing in future ACM inventory management studies in other countries. Business managers and inventory management staff of global ACMs can use it as a guide for effective inventory management; on which specific inventory management decisions to always pay attention to and, which inventory management decisions to pay attention to when a long-lasting pandemic occurs such as Covid-19. It is recommended that regardless of the Covid-19 pandemic, inventory managers in ACMs in South Africa should consider inventory forecasting management methods such as demand forecasting, determining the economic order quantity (EOQ) for all inventory item orders and materials requirement planning (MRP). They should also use an inventory information sharing system and inventory replenishment procedure to ensure inventory is managed effectively. During a prolonged pandemic such as Covid-19, inventory managers in ACMs in South Africa should pay particular attention to inventory resource management specifically regarding re-order inventory levels and classifying all inventory items according to the importance of using ABC analysis. They should further offer employees inventory training to remain abreast of new inventory developments in the industry and for career advancement.Thesis (MCom) -- Faculty of Business and Economics Science, School of Applied Accounting, 202
Representation of history in Tsitsi Dangarembga’s trilogy – nervous conditions, the book of not and this mournable body
Get PDFThis 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 perspectiveThesis (MA) -- Faculty of Humanities, School of Language, Media and Communication, 202
The Influence of authentic leadership on the workplace safety culture in the tyre industry of South Africa
No full textThe lost-time injury rate in the South African automotive industry is higher than one per million (Harmony, 2010:2). Other manufacturing and construction industries have embarked on safety programmes to ensure awareness amongst their workers. The leaders in industry should have a significant influence to steer the safety culture in the automotive industry. This study examined the relationship between Authentic leadership and a safety Culture in the tyre industry of South Africa. The purpose of the study was to increase the workplace safety culture in the South African tyre manufacturing industry by investigating whether the implementation of an authentic leadership programs would positively influence workplace culture. An exploratory study used a quantitative research design involving an email survey to examine the relationship between Authentic Leadership and Safety Culture. Authentic leadership and the safety climate were assessed using the Norwegian Offshore Risk and Safety Climate Inventory (NORSC), the Authentic Leadership Questionnaire, and the questionnaire from Fulele and Kadam. Seven safety climate dimensions were mapped onto the questionnaire. The data from the questionnaire were analysed using STATISTICA software. According to respondents there is a very strong relationship between Authentic Leadership and the implantation of OHSA standards in the tyre industry in South Africa. In addition, respondents rated their management’s implementation of the organisation’s safety routines highly. There was a high level of motivation among respondents to act in a safe manner. The motivation of workers to work safety is also strong related to authentic leadership.Thesis (MBA) -- Faculty of Business and Economic Sciences, 202
Anthropological Inquiry into the causes of Measles within the community of Moletji- Ramakgaphola, Limpopo Province, South Africa
Get PDFThe study is a multidisciplinary study constituting both Indigenous Knowledge Systems and Medical Anthropology, which focuses on people's health and well-being and the possible cultural ways of dealing with factors influencing their health and well-being. The study aim is to explore the Community members of Moletji-Ramakgaphola's Indigenous knowledge of the causes of measles. The objectives of the study were as follows, to investigate what are the community of Moletji's views on the causes of measles, to contribute within the Medical Anthropology with specific reference to MoletjiRamakgaphola in the Limpopo Province and lastly to come up with recommendations on how indigenous knowledge can be incorporated in the epidemiology of Measles. The study followed a qualitative research approach. Purposive sampling was used with snowballing as a technique. Data was collected through observations and face to face interviews with an interview schedule. Scientific research procedures and ethics were respected and maintained throughout the research process from the initial stage to the last. The collected data was analysed using thematic analysis. Relevant literature was also consulted, and indigenous healing was used as a conceptual framework to understand measles within the Moletji-Ramakgaphola community. Lastly, an outline of every chapter of this report was presented together with the research findings and recommendations.Thesis (MA) -- Faculty of Humanities, School of Governmental and Social Sciences, 202
Consumerism, authenticity and African communalism
Get PDFLet me state, from the outset, that the issues raised below may be considered from various vantage points – Capitalism, Marxism, etc. However, this thesis is an endeavour to account for the loss of authenticity due to the most salient features of the consumer paradigm, which is the manufactured object, the production line and the proliferation of said objects. True relationships, or shall we say authentic dialogue, is based upon a difference of viewpoints – or epistemic distance – between the interlocutors. This difference of opinion, it may be argued, allows for a cognitive jostling between the subjects involved and represents, as it were, the reciprocal back and forth movement of ideas that betokens actively engaged dialogue. Crucial, then, to true, and by extension authentic, relationships is an epistemic distance steeped in variegated, heterogeneous points of view. For it is in sharing the differences in our points of view or interpretations of the world that we may start a dialogue far removed from each other and then sustain said dialogue in an attempt to reconcile our differences. The continuation of the dialogue, then, depends upon difference. Without the latter difference, the conditions of true dialogue, which is also a marker of authentic relationships, the need for sustained debate is forfeited and the dialogue ceases to serve a purpose – for the subjects involved in the intellectual jostling and exchange of ideas may already anticipate the thoughts of the other. In so anticipating the thoughts of the other, what is brought to the fore is not the ideas of the other, and by extension the other’s existence distinct from mine, but rather my own existence and thoughts. Were I and the other to share a constellation of beliefs, I am left with only that which I already believe in and so only with my own thoughts. The other’s differing opinion is crucial to their appearing to me as an element discreet and distinct from me. For if the other’s being is in essence of the same ilk as mine – and with that I mean if the other’s points of view and adopted systems of praxis mirror mine – we are like trees in a forest. The existence of collective nouns attests to this latter remark; we are prone to see the forest, not the similar trees that constitute it. Now the question arises as to the constitution of the self; what is it that makes up the character and nature of a person and how, if at all, may subjects be said to differ epistemically? According to Sartre, the ego is a transcendent object for consciousness, meaning that it exists out there in the world just like other objects. This is the case because consciousness is essentially empty. Recall Sartre’s famous claim that existence precedes essence, which in turn means that consciousness, or the ego, is filled up inchmeal with contents outside itself. In other words, that with which we are engaged constitutes the contents of consciousness. Repeated exposure to certain objects, or phenomena, brings about the cultivation of states and qualities – these, as it were, constituting the ego in the end. Moreover, these states and qualities, as arisen from repeated exposure to like phenomena, will instil in the subject a certain proclivity for a certain manner of action under specific conditions. As such, having been presented with something disagreeable many times over, a state of repulsion might gain a foothold in my ego regarding the phenomenon in question. This in turn will dictate how I act in the presence of said phenomenon or any other phenomena that include, adumbrationally, some of the qualities of the original phenomenon. As such, then, my actions are reflections of the states that I experience in the presence of certain objects or phenomena and, it may be argued, reflexively represent the world around me as that which constitutes my ego. The facticity of the world, then, has a great bearing upon the manner in which I perceive and engage the world. However, claims Sartre, facticity is but one side of the coin. The world and its meaning are constituted by what Sartre calls brute meaning. This refers to the fact that meaning is a matter of public opinion and does not precede the phenomenon or object itself – the latter being, in essence, but a bare, pliable, monstrous mass of being-in-itself. Due to this occurrence of meaning being man made, we are in a unique position of freedom. We are, he further claims, capable of transcending these brute meanings, enabling us to avail ourselves of the objects or phenomena in question in a bespoke manner. Freedom to choose how we interact with and interpret the world is thus the ontological ground of choice. We have, on the one side, the world in its undifferentiated state – being-in-itself – and on the other the possibility to give this world a specific meaning in accordance with our intentions – being-for-itself. Freedom to choose, so construed, thus ontologically underlies the very fabric of our existence, hence the claim that we are condemned to be free. Choosing whether to continue along the path set out by our original factual condition or to transcend it and make of it something different altogether is thus not a choice at all, but the obligatory condition of the human condition. Once again, this is the case because consciousness, as per Sartre, is empty to start with and can only be filled with the contents of phenomena or objects in accordance with our intentional engagement of them. However, Sartre continues, this freedom of meaning and the fact that brute existents represent nothing more than the convergence of publicly ascribed meaning awaken in the subject a certain nausea – a nausea born of the fact that we, the people, are at every junction in a position where we have to choose the meaning of life. Determinism, thusly, does not exist and we are not only free to choose the meanings of our own lives, but are responsible for what our lives become. This realisation proves to be too much for most to stomach and leads them along a specific path of choice: over-identification with either their factual realities or with the possibility to transcend the latter. Either way, what they aim to achieve with this overidentification is the suppression of the nauseating reality that reality is nought but what we make it to be and we are thus responsible for what it becomes. Sartre calls this bad faith. Pandering to this proclivity towards bad faith, or alternatively, the propensity for overidentification with either side on the facticity/transcendence dichotomy, we find consumerism. The consumer paradigm delineates happiness as an objective ideal, attainable through the acquisition of specific markers of demonstrable happiness. At the same time, it also provides an answer to the nauseating reality that we, humans, are never fully determined beings, but find ourselves vacillating between our factual constraints and our transcendences thereof. It offers us the crystalised means of becoming this or that individual by way of populating our immediate and personal surroundings with signifiers of happiness. Considering, moreover, that a liberalist conception of human being clearly indicates that individuation of each subject is an important aspect of existence, authenticity in terms of rights emerge as a corollary of said individuation. Each individual, so construed, is given the opportunity, the right, to acquire said markers of happiness and individuation. Obtaining these, it may be argued, allows the individual two things: firstly, to quell the nausea that haunts our dualistic lives by concretising it altogether and so doing highlighting the factual side of things; and secondly, to become discreet and individuated subjects, authentic in their beings. However, the authenticity so begotten provides nought but a thin veneer of idiosyncrasy, as the markers of said authenticity are publicly available and so the same for everyone. The problem, thus, of self-individuation is resolved by providing the subject the means of over-identification with their factual realities whilst convincing them, the consumers, that the objects on offer will afford them a degree of happiness and set them apart from their fellow subjects. The unfortunate upshot of this is that subjects all avail themselves of the same set of objects in an attempt to quell the nausea that besets the individual plunged into an undifferentiated existence. We are here at the heart of the matter. Due to the proliferation of like objects throughout the life-world, a specific system of praxis is implied. So as to navigate the life-world and utilise the similar objects that populate it, consumers are driven towards shared ideologies and courses of action. Moreover, their intentions also converge, as they all seek to establish a web of objects around them that would bespeak their individuation and happiness. Where the life-world has become such a homogeneous landscape, it may be argued, in line with Sartrean thought, that the contents of consciousness would also be similar for all. And where the contents of consciousness is similar for all, we may argue that reasoning would be similar for all. It is at this point that dialogue breaks down, for there is nothing epistemically to separate interlocutors and therefore no differences of opinion to sustain true dialogue. If, as it was reasoned some pages prior, it is the case that sustained dialogue provides the predicate upon which authentic relationships are to be based, the collapse of this epistemic distance between consumers must then also lead to a collapse of authentic relationships.Thesis (PhD) -- Faculty of Social Sciences and Humanities, 202
The impact of public libraries as a transformative factor in human development in the Buffalo City Municipalities
Get PDFThis study investigated the impact of public libraries as a transformative factor in human development in the Buffalo City Municipalities. Literature revealed that although libraries play a significant role to their clientele, there seems to be challenges of service delivery in public libraries and these are largely due to funding issues. This has led to a general public negative perception that public libraries underperform which may not be necessarily a true reflection of public libraries. The role of the libraries in as far as the transformative factor in human development may be unclear, therefore, the researcher wants to determine the extent of the transformation factor in human development. The study was guided by the following objectives to: examine the impact of public library to its community or patrons in the Buffalo city libraries, find determine whether the library personnel understand their role in transforming the human development, determine the strategies used by public libraries that are transforming the human factor and to establish how the library patrons perceive the role of the public libraries in transforming their lives. A mixed methods approach was used as the research method. Qualitative and quantitative research methods were combined while simple random sampling was adopted to have a wide range of perspectives from library users. Library staff were purposively selected for interviews. A total of 31 people were interviewed, with 6 librarians and 25 library patrons. Out of 250 questionnaires administered, 220 were returned. The study was informed by the Service quality theory (SERVQUAL), Human Capital Theory and the Diffusion of Innovation Theory (DOIT). The DOIT theory was deemed suitable in this kind of research that deals with transformation and development as patrons adopted and adapted to new ideas and practices. The Service Quality theory was useful in this study because it included variables that the researcher felt were most significant for transformation and development to take place in a public library setting. The HCT theory denotes that education and training leads to greater productivity, and it translates into economic returns like high wages and increased Gross Domestic Product (GDP). This theory was relevant in this study because public libraries have an informative role to play as part of its roles as well as an educational role to play to the lives of the people who use the library. When people read at libraries, they are educated. They also improve their literacy levels through reading. Public libraries provide community members with services that are free of charge or cheaper and this helps the library patrons to save economically and transform as well. This process of servicing the needs of patrons is beneficial and continuous. In addition, the findings of this study revealed that library personnel understand their roles and those roles in turn transform the human development, although this is not really conclusive that they understand their roles in the transformation process. They ensure that the library patrons get the services they require and in some instances the library personnel even go beyond their normal duties. However, it must be noted that from the findings the main obstacles hindering libraries to effectively transforming the human development is the issue of funding and insufficient resources, Libraries have assisted in educational investment to the community members through many programmes offered in the public libraries and this assists in educational improvement and productivity in many spheres of life. The study also revealed that the public libraries provide spaces where patrons can hold meetings, discuss study related topics as well as individual studying spaces although, more space is required to avoid overcrowding. Through a number of strategies employed which are also attractive to the library patrons, public libraries transform the human development. Patrons perceive public libraries as extremely useful in transforming their lives as they indicated that the public library transform their lives in many aspects such as providing them with the information they require, learning opportunities, access to gateways of information like the internet and manual books, bridging that poverty gap and provision of literacy skills to the library patrons. It was concluded that public libraries transform the lives of the people in the communities that they serve in different aspects with the different roles and services that they offer to their patronage. In addition, a number of strategies are employed by public libraries so as to attract people into public libraries as well as to fulfil their primary mandate. In their pursuit to employ these strategies, public libraries transform the human development. Librarians with their duties assist the public yet it is unclear if they are fully aware of the role they play in transforming people’s lives. Despite some of the bad attitude exhibited by the librarians, a larger percentage of the librarians display a good attitude when carrying out their duties and assisting the library patrons. Librarians go beyond the call of duty in assisting the patrons and this in turn transform the human development. The researcher made some recommendations as per the findings of the study and these recommendations entail continuous training of the library personnel post their formal qualifications, strengthened collaboration and communication by the three spheres of Government so that the libraries may be better governed, constant awareness drives about public libraries and stable internet connectivity so that access maybe improved. The researcher also recommended the use of social media platforms for communication purposes and announcements as people are now attracted to social media platforms and they can be accessed by most of the library community. A proposed model was developed, and the proposed model is the RPPPP hierarchical model for transformative public libraries. This model was proposed also based on the findings of the research. For a public library to be transformative it must have resources, personnel, patrons, physical space and policies in place hence, the name RPPPP model. RPPPP denotes Resources, patrons, personnel, policy and physical space. Resources are primary to the functioning of any public library, highly skilled personnel as well as patrons as they are the recipients of the public library services, policy is also important so as to give guidance and direction on the issues of governance. In order to adequately serve the needs of the patrons, enough space is needed.Thesis (PhD) -- Faculty of Social Sciences and Humanities, 202
Preparation, characterization, and in vitro evaluation of polymer-based wound dressings for the management of chronic wounds
Get PDFMicrobial infections are responsible for the retarded recovery process of chronic wounds. Polymer-based scaffolds possess features suitable for the treatment of chronic injuries. However, these scaffolds are commonly encapsulated with therapeutic agents to enhance their biological activities, including antibacterial efficacy. In this research, two types of polymer-based scaffolds were formulated and evaluated as effective formulations for the treatment of chronic wounds: sponges and topical gels. Sponges were formulated from cross-linking of gelatin and PEG. Ag nanoparticles and metronidazole were incorporated into the sponges to improve their antibacterial activity. Topical gels were loaded with essential oils and Ag nanoparticles and prepared from CMC and poloxamer. The prepared sponges and topical gels were evaluated using various analysis and characterization techniques. SEM/EDX, FTIR, and TGA were employed to characterize gelatin/PEG hybrid sponges followed by porosity, in vitro biodegradability, cytotoxicity, and antibacterial studies. FTIR, SEM/EDX, and TGA confirmed their physicochemical properties and successful fabrication of sponges loaded with metronidazole and Ag nanoparticles. The sponges were biodegradable, indicating their capability to induce skin regeneration. The drug release studies showed a rapid release of metronidazole 28.32-71.97 percent from the sponges over the first hour, followed by a sustained drug release. The Ag nanoparticles were released in a sustained manner, suggesting that these sponges can rapidly destroy bacteria and inhibit persisting bacterial infections as well as protect the lesion bed from further bacteria infections. The in vitro antibacterial studies of sponges displayed superior antibacterial activity against most of the Gram-negative and Gram-positive bacteria strains commonly found in chronic wound infections with a MIC value of 15.625 μg/mL. In vitro cytotoxicity experiments revealed excellent biocompatibility with a percent cell viability of more than 70 percent. The in vitro wound scratch healing assay exhibited that the sponges encapsulated with only metronidazole promoted high cell migration than the dual drug-loaded sponges and untreated cells, suggesting its potential to quicken the wound healing process. CMC/Poloxamer topical gels were also characterized by FTIR, followed by pH, viscosity, spreadability, cytotoxicity, and antibacterial studies. FTIR showed successful preparation of CMC/Poloxamer topical gels loaded with essential oils and Ag nanoparticles. The topical gels exhibited pH in the range of 5.20-6.68, spreadability between 5.4 and 5.9 cm, and viscosity ranged from 216 to 1200 cP at 50 rpm and 210–858 cP at 100 rpm. The in vitro drug release studies demonstrated that Ag nanoparticles were released from the topical gels in a sustained manner. Most formulated topical gels demonstrated superior antimicrobial efficacy against Gram-positive and Gram-negative bacteria strains than the blank gel and controls. The cytotoxicity analysis displayed more than 90.83 percent cell viability for the topical gels, revealing excellent biocompatibility. The outcomes revealed that the topical gels enriched with essential oils lavender and tea tree and Ag nanoparticles and sponges incorporated with metronidazole and Ag nanoparticles are potential wound dressing scaffolds that can be employed for the treatment of chronic infected injuries. The in vitro wound healing experiments showed that the HaCaT cells cultured with gels co-enriched with lavender oil and Ag nanoparticles possessed a higher rate of closure in comparison to the untreated cells for 96 hours.Thesis (PhD) -- Faculty of Science and Agriculture, 202
Teaching in times of crisis: understanding the uneven effects of the COVID-19 lockdowns on teaching practices in Zimbabwe – a case study of Marondera
Get PDFThe COVID-19 pandemic has exposed the fragility of economies in times of a global crisis while simultaneously increasing inequalities between and within countries. The pandemic responses have varied between countries with some being extremely proactive and others being quite reluctant to respond. Though it is largely a health crisis, its impact has far reaching effects that have been felt in many sectors of society including education. Billions of scholars at varying levels were forced out of school abruptly globally and unfortunately some have not been able to return to schools. The differential impact of COVID-19 in education is evident not only at a global level, but national level as well. The primary focus of this research is the impact of COVID-19 on the teaching practices applied in Zimbabwean schools. Zimbabwe, a developing nation in the southern region of Africa, has a long history of a thriving education sector recognised internationally. However, in the wake of the pandemic, the research attempts to understand the experiences of teachers in private and government schools in the hope of showing the dilapidation and unevenness of the sector, across the private-public divide. COVID-19 comes at a time when the country’s economy and healthcare system continue to exhibit signs of struggle and collapse. The research made use of qualitative research methods and in-depth interviews with teachers from public and schools around the town of Marondera. The research concluded that there are wide gaps in the quality of education delivered to students in private and government schools, and that the COVID-19 lockdowns in Zimbabwe not only demonstrate these gaps but also exacerbated them.Thesis (MSocSci) -- Faculty of Humanities, Sociology, 202