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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
921

Damming the rivers of the Amazon basin

Latrubesse, Edgardo M., Arima, Eugenio Y., Dunne, Thomas, Park, Edward, Baker, Victor R., d’Horta, Fernando M., Wight, Charles, Wittmann, Florian, Zuanon, Jansen, Baker, Paul A., Ribas, Camila C., Norgaard, Richard B., Filizola, Naziano, Ansar, Atif, Flyvbjerg, Bent, Stevaux, Jose C. 14 June 2017 (has links)
More than a hundred hydropower dams have already been built in the Amazon basin and numerous proposals for further dam constructions are under consideration. The accumulated negative environmental effects of existing dams and proposed dams, if constructed, will trigger massive hydrophysical and biotic disturbances that will affect the Amazon basin's floodplains, estuary and sediment plume. We introduce a Dam Environmental Vulnerability Index to quantify the current and potential impacts of dams in the basin. The scale of foreseeable environmental degradation indicates the need for collective action among nations and states to avoid cumulative, far-reaching impacts. We suggest institutional innovations to assess and avoid the likely impoverishment of Amazon rivers.
922

Accountability in the context of civilization change in China

Margerison, John January 2015 (has links)
The purpose of this thesis is to contribute to the understanding of accountability in the context of civilization change in China. Using a Foucaultian epistemic framework and archaeological method, data has been gathered from four sources: textual, interviews, case studies and surveys. Each source has been considered in terms of the viability of the modern episteme and the possibility of episteme change to ecological civilization taking place in China. Also the actors in the sustainability accountability network have been identified along with the key contingencies that could lead to changes in accountability in China. Based on the data collected there is strong evidence that the existing industrial civilization in China is seen to be unsustainable. Also that there are particular contingencies in place in China that make episteme change both likely and perhaps already taking place. The key contingency in this research is the metaphysical continuum based on harmony ideas in ancient Chinese philosophy. As a result there are strong grounds for predicting that new forms of accountability will be based around groupings of organizations in provinces, geographical areas (river basins) and regions, feeding up to accountability for sustainability at national and supra-national levels. Practically this research has opened up the possibility of accountability in China that could seriously address sustainability issues rather than the typical Western approaches based on empty rhetoric to improve reputation and legitimacy. This research has operationalized Foucault’s ideas on episteme change empirically in China. As such it represents an original contribution to research on sustainability and accountability responses thereto.
923

Can I ask you a question? On global studies and solutions

Neufeld, Mark 29 March 2016 (has links)
The Institute for Global Studies (IGS) at Claremont High School in Victoria, Canada is a distinctive local example of “transformative education” that features a transdisciplinary, problem-based and globally oriented program within the public secondary school system. Launched in 2012, and arising from earlier pioneering courses in global studies, the IGS has now graduated two cohorts, and has led the founding educators to raise questions about which aspects of the students’ experience were thought to be most important after graduation and what graduates did with the skills they acquired. Part 1 is an extensive description of the background experience of the main founding educator that led to the creation of the original global studies course, and eventually the IGS itself. Part 2, the study itself, includes a review of relevant literature. It draws upon a range of writings about transformative education, including reviews of “whole school approaches to sustainability”. Relatively few systematic evaluations of these programs were found. A recent study from Bangladesh evaluated the effect of a climate change curriculum using a randomized cluster design. It demonstrated significant increases in relevant knowledge gain by students using the government recommended curriculum. The research question in this study was: “What impact has Global Studies/Global Solutions had on students who have taken it and what will they do with the skills they have acquired? Semi-structured interviews were conducted with eight (8) program graduates, using a set of standard questions as a guide. Study participants were selected from a pool of graduates by an independent researcher, to ensure a range of views, taking into account gender diversity, ethnic diversity, experience with both programs (Global studies and IGS), and post-program experiences. Research findings about program impact included both expected and unexpected results. Expected impacts included the transformative nature of the learning, the positive (hopeful) experience itself, and the effectiveness of the interdisciplinary, problem-solving approach. Unexpected impacts included the power of collaborative learning, and the value of guest speakers from various backgrounds who served as powerful role models. Regarding how graduates used what they learned, this included the further application of interdisciplinary learning and problem solving at a university level, and increased confidence that they could “make a difference”. The experience also guided career directions--for example, in the choice of university study programs. One graduate is volunteering with a non-government organization at a rural school in a low-income setting. Another graduate, while not going on to tertiary education, is using the experience to guide his work vocation. In summary, the global studies/IGS program has had important impacts on graduates, both expected and unexpected. Graduates use distinctive learning skills in subsequent university studies. For some the experience influenced specific career directions. / Graduate
924

A framework for measuring the performance and sustainability of social enterprises

Mokhothu, Itumeleng January 2013 (has links)
Social Enterprises are becoming a key economic sector globally, which has led to increased interest from scholars, policymakers, investors, regulators and practitioners alike. There has however not been any consensus and consistency on how to measure their performance. This study aims to address these challenges by proposing a framework that could be used to measure the performance and sustainability of Social Enterprises. The study was conducted by initially reviewing the literature, selecting the most relevant performance criteria from the literature to form the performance measurement framework and finally testing the framework through a qualitative descriptive study of a sample of eight Social Enterprises listed on the Social Stock Exchange in the United Kingdom for the period 1 January 2008 to 31 December 2012. The research further proved that it is possible to measure the performance of Social Enterprises and to standardise those measurements for the sector. In this light the financial performance and sustainability criteria were found to provide meaningful results whereas the social performance criteria were prejudiced to an extent by the absence of standardised social reporting in the sector. Further to this the research study found that: (1) the Social Enterprise sector yielded more stable but lower financial returns relative to the stock market, (2) there were no correlations between the sector, GDP and stock market, (3) the social aims have not been achieved in full and (4) the sector was becoming progressively unhealthier with time. / Dissertation (MBA)--University of Pretoria, 2013. / zkgibs2014 / Gordon Institute of Business Science (GIBS) / MBA / Unrestricted
925

Hållbarhetsredovisning : Företagens val av väsentlighetsaspekter / Sustainability Reporting : Companies’ selection of material aspects

Hero, Rahmani, Donya, Zafar January 2017 (has links)
Sammanfattning I och med ökat antal globala kriser och ökad intressentmedvetenhet kring företagens samhällspåverkan har hållbar utveckling blivit en central och viktig fråga både för företag och enskilda individer. Till följd av detta har företag ett ansvar att arbeta hållbart och ta miljö- och socialhänsyn, genom att hållbarhetsredovisa försöker företag tillgodose samhällets behov och erhålla legitimitet. Vad en väsentlig hållbarhetsfråga är kan variera från en bransch till en annan, att studera och förstå likheter och skillnader mellan företags val av väsentlighetsaspekter är en viktig fråga som tidigare forskning inte har undersökts i större utsträckning. Syftet med denna studie att öka förståelse för väsenlighetsaspekter som offentliggörs i företagens hållbarhetsredovisningar utifrån Global Reporting Initiatives (GRI) riktlinjer. Det regelverk som ligger till grund för studien är GRI:s (G4) riktlinjer tillsammans med teorier såsom intressentteorin och legitimitetsteorin, samt en beskrivning av olika koncept bland annat Corporate Social Responsibility (CSR), Tripple Bottom Line (TBL), hållbar utveckling och hållbarhetsredovisning. För uppnå studiens syfte har en kvalitativ innehållsanalys används som metod, där tolv företags hållbarhetsredovisningar från konfektion- och skogsbranschen har granskats. I studiens empiri presenteras företagens väsentlighetsanalys som redogör för hur företagen identifierar sina väsentlighetsaspekter, vidare beskrivs deras val av väsentlighetsaspekter utifrån miljö- och socialkategorin. I analysen framförs vilka likheter och skillnader som finns mellan företagens val av väsentlighetsaspekter utifrån branschtillhörighet. Studiens slutsats är att det finns både likheter och skillnader mellan konfektion- och skogsföretagens val av väsentlighetsaspekter. Betydelsefulla och återkommande aspekter hos både branscherna var bland annat utsläpp, avlopp och avfall och mångfald och jämställdhet. Vidare visar resultatet att aspekterna både ur miljö- och socialkategorin redovisas i större utsträckning av företagen inom skogsbranschen. En förklaring till detta kan vara att branscher som har större miljöpåverkan såsom skogsbranschen redovisar flera aspekter inom båda kategorierna. Slutligen visar studien att konfektionsbranschen offentliggör mer information om verksamhetens sociala påverkan, en förklaring till detta kan vara att konfektionsbranschen har större socialpåverkan i jämförelse till miljöpåverkan. / Abstract   Due to increased global crises and increased stakeholder awareness about business’ societal impacts sustainable development has become a central and important issue both for businesses and individuals. As a result of this companies have a responsibility to work sustainably, taking society and environment into consideration, through sustainability reporting companies try to satisfy the expectations of society and obtain legitimacy. The materiality of sustainability issues differ across one branch to another, to study and understand similarities and differences between companies’ selection of material aspects is an important question which previous research has not investigated to a greater extent. The purpose of this study is to increase understanding of the material aspects which is disclosed in companies’ sustainability reports based on Global Reporting Initiave’s (G4) guidelines. The guidelines used in this study is based on GRI’s (G4) framework, along with theories such as stakeholder and legitimacy theory and also a description of different concepts such as Corporate Social Responsibility (CSR), Tripple Bottom Line (TBL), sustainable development and sustainability reporting. In order to fulfill the purpose of the study, a qualitative content analysis has been used as a method for reviewing twelve companies' sustainability reports from the apparel and forestry sectors. The empirical section of the study presents the company's materiality analysis, which describes how companies identify their materiality aspects and also gives a further description of companies’ selection of material aspects from the environmental category and social category. The analysis identifies the similarities and differences between the companies' choice of material aspects based on sector affiliation. The study's conclusion is that there are both similarities and differences in the selection of material aspects between the companies in apparel and forestry sectors. Significant and recurring aspects for both sectors: emission, effluents and waste, diversity and equal opportunity. Furthermore, the result shows that the aspects from both the environmental and social categories are more widely reported by companies in the forestry sector. An explanation for this could be that sectors with greater environmental impact, such as the forestry sector report more aspects in both categories. Finally, the study shows that the apparel sector publishes more information about the social impact of the business. An explanation for this could be that the apparel sector has greater social impact in comparison to environmental impact.
926

Microbial-based evaluation of anaerobic membrane bioreactors (AnMBRs) for the sustainable and efficient treatment of municipal wastewater

Harb, Moustapha 03 1900 (has links)
Conventional activated sludge-based wastewater treatment is an energy and resource-intensive process. Historically it has been successful at producing safely treated wastewater effluents in the developed world, specifically in places that have the infrastructure and space to support its operation. However, with a growing need for safe and efficient wastewater treatment across the world in both urban and rural settings, a paradigm shift in waste treatment is proving to be necessary. The sustainability of the future of wastewater treatment, in a significant way, hinges on moving towards energy neutrality and wastewater effluent reuse. This potential for reuse is threatened by the recent emergence and study of contaminants that have not been previously taken into consideration, such as antibiotics and other organic micropollutants (OMPs), antibiotic resistance genes, and persistent pathogenic bacteria. This dissertation focuses on investigating the use of anaerobic membrane bioreactor (AnMBR) technology for the sustainable treatment of municipal-type wastewaters. Specifically, a microbial approach to understanding biofouling and methane recovery potential in anaerobic MBR systems has been employed to assess different reactor systems’ efficiency. This dissertation further compares AnMBRs to their more widely used aerobic counterparts. This comparison specifically focuses on the removal and biodegradation of OMPs and antibiotics in both anaerobic and aerobic MBRs, while also investigating their effect on the proliferation of antibiotic resistance genes. Due to rising interest in wastewater effluent reuse and the lack of a comprehensive understanding of MBR systems’ effects on pathogen proliferation, this dissertation also investigates the presence of pathogens in both aerobic and anaerobic MBR effluents by using molecularbased detection methods. The findings of this dissertation demonstrate that membrane-associated anaerobic digestion processes have significant potential to improve the sustainability of wastewater treatment. This is exemplified by attributes of AnMBR systems associated with both increased system efficiency and wastewater reuse potential through methane recovery and lower abundance of effluent microbial contaminants, respectively. Overall, the studies collated in this dissertation have shown that understanding the microbial communities of AnMBRs can play a central role in further improving these attributes and in reducing the risks posed by emerging contaminants and pathogens in wastewater treatment systems.
927

Sub-Saharan Africa and a Crisis of Sustainability| Exploring Wellbeing and the Role of Ecological Economics in Sustainable Development

Walton, Jeff S. 01 July 2017 (has links)
<p> This case study explores wellbeing and sustainable development in rural sub-Saharan Africa &ndash; a culturally and ecologically diverse and vibrant region devastated by colonial and postcolonial injustices that have created persistent and pervasive social, economic, and ecological crises. The growth-oriented capitalist economic model that has shaped the operative understanding of wellbeing and perpetuated the invented reality of underdevelopment also guides large-scale sustainable development efforts that persistently fail to significantly improve wellbeing among rural communities. Ecological economics may provide a paradigm for sustainable development that is culturally, ecologically, and economically more appropriate &ndash; and more effective &ndash; for both assessing and improving wellbeing. Twenty-seven participants from two rural, forest-dependent communities in Cameroon&rsquo;s Southwest Province were surveyed to assess perceptions of wellbeing and social-ecological resilience. These communities are heavily invested in a sustainable agriculture initiative that reflects an ecological economics worldview and key dimensions of community resilience. Results indicate that perceptions of wellbeing are influenced by both gender and occupation, and that the sustainable agriculture initiative positively impacts perceptions of wellbeing for farmers more than non-farmers, and female farmers more than male farmers. This suggests that participation in the program may positively influence perceptions of subjective and community wellbeing. Further study in these communities, and across similar communities may shed light on how ecological economics might provide a practical basis for broadening an understanding of wellbeing and for informing the approach, design, and implementation of sustainable development initiatives.</p>
928

The livelihood impacts of commercialization in emerging small scale irrigation schemes in the Olifants catchment area of South Africa

Tapela, Barbara Nompumelelo January 2012 (has links)
Philosophiae Doctor - PhD / This thesis examines livelihoods in the wake of agricultural commercialization under the Revitalization of Smallholder Irrigation Schemes (RESIS) Programme and similar revitalization initiatives within the Olifants River Basin in Limpopo Province. The focus is on contractual joint ventures and strategic partnerships implemented within selected smallholder irrigation schemes. The thesis is based primarily on in-depth empirical studies conducted between October 2003 and March 2009 in three sites located in two Integrated Sustainable Rural Development Programme (ISRDP) poverty nodes namely, Greater Sekhukhune and Vhembe Districts. To a lesser extent, the thesis draws on findings from rapid appraisals of five additional study sites in Greater Sekhukhune District. Research findings showed that the performance of joint ventures and strategic partnerships had so far largely fallen short of expectations. With the exception of a minority of small holders involved in RESIS-Recharge strategic partnerships, the promise of higher incomes and improved livelihoods had often remained elusive, while debts and potential losses of often meagre household assets loomed large, threatening to erode existing livelihoods and undermine government interventions. This was mainly because ‘viability’ in both the RESIS and RESIS-Recharge phases was narrowly seen in economic and technical terms, such that reduction of transaction costs often entailed the divesting of responsibilities to address issues of rural poverty and inequality. Subsistence production had largely given way to commercially-orientated farming, and weak monitoring of contract formulation and implementation meant that voices of marginalized poor and vulnerable people, particularly women and the elderly, were not being heard. Research findings further revealed that while RESIS-Recharge strategic partnerships increased incomes for a minority of smallholders, such arrangements did not meaningfully improve the productive, managerial and marketing skills of smallholders to ensure their effective participation in agriculture. Rather, strategic partnerships were creating a small class of black ‘arm-chair’ farmers, who played little or no active role and obtained few or no skills in commercial farming but perpetually depended upon and drew incomes from agribusiness initiatives run by externally-based agents. Adjunct to questions of sustainability for these farmers’ ability to participate in commercial farming, the thesis raises the question: What is the rationale for joint ventures and strategic partnerships in the context of South Africa’s Agricultural Sector Strategy objectives for support to black farmers? Contracts lacked mechanisms for equitable distribution of costs and benefits between contracted private partners and targeted smallholders, on the one hand, and the rest of members of local communities, on the other hand. Contracts also lacked provisions for post project recapitalization of infrastructure and rehabilitation of degraded land. This raised questions about the longer term sustainability of productivity, natural resource base and livelihood security in smallholder irrigation schemes. The conclusion of this thesis is that the challenge of reducing rural poverty and inequality in smallholder irrigation schemes might not be resolved through existing institutional approaches to agricultural commercialization.
929

The legality of the 2015 demarcation proposals by the Minister of Cooperative Governance to the Municipal Demarcation Board

Mzakwe, Sipho January 2015 (has links)
Magister Legum - LLM
930

Water Wise Centre, Prinshof - Pretoria

Van Wyk, Hendrik C 24 November 2003 (has links)
Water Wise education Centre. This centre focusses on the teaching of water wise living methods. It assist one to become aware of the little water resources we have available and ultimately teaches one how to live in a self sustaining manner. It focuses on a sensory experience of water and creates a space or 'shell' were interactive learning can take place. / Dissertation (MArch (Prof))--University of Pretoria, 2005. / Architecture / unrestricted

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