The technological revolution of the XX century led to big transformations in global culture, society and economy, but it did not reach equally to all. While science is today one of the main engines of industry, agriculture, and production of goods, billions of people in small communities still relay on local forms of knowledge, technologies and techniques to carry out their economic activities. This thesis aims to analyze the role of Local Knowledge and the Appropriate Technologies derived by said knowledge applied to the fish farms of peasants in the local Sustainable Development in the Vale do Jamari region, in the state of Rondônia, in Brazil. To achieve our goal, we initiate with a theoretical discussion that will provide tools for the analysis of the empirical data. Firstly, we discuss the concept of Sustainable Development, pointing its limitations and providing a perspective of an analysis of this type of development that favors the resources, interests and culture of a local community. Secondly, we bring the discussion over the accumulated knowledge of man over its environment and the conditions that it inhabits; the concept of Local Knowledge, its characteristics, its importance, limitations and its role in the contemporary world post-Green Revolution. The third moment of our theoretical discussion is dedicated to the movement of alternative technology and the concept of Appropriate Technology, its characteristics and the importance of the concept to the analysis of technologies that are apt to work in specific contexts in a way to be valid to its users. In the sequence, we present the method used for the empirical research, in which a case study was carried out. The case selected was of the peasant fish farms in the Vale do Jamari, region comprised of 9 municipalities in the center of the state of Rondônia, in the western amazon, in Brazil. Said region was colonized by rural workers migrating from other parts of the country between the 1960-1980s, resulting in great impact to the natural environment. The region presented in the last 8 years high rates of growth, partially due to small fish farmers acting with low technology and little access to technical assistance. Secondary data was selected through document research and primary data was collected from observation, photographs, field journals, technical visitations, participation in industry related events, open and semi-structured interviews carried out between mayjune, october-december 2016. The data gathered, upon careful analysis, pointed out that in the case of the peasant fish farmers of the Vale do Jamari: the existence of techniques and technologies developed through Local Knowledge and which are used in multiple situations in substitution, complementation or supplying the absence of technical/scientific knowledge and tools; that such local techniques and technologies can be said to be Appropriate Technologies; that there is disbelief on behalf of technical assistants of the validity of said technologies; that there is a lack of trust and there is a deficient communication between technical assistants and farmers; that such techniques and technologies developed by the fish farmers are compatible with a food production style of low environmental impact, coherent with the locally available resources and which create social and economic benefits to the local community; and, finally, that Local Knowledge, in the absence of conventional technologies appropriate to the found conditions, served as the base to the development of local technologies, appropriate and capable of guaranteeing the activity of fish farming for peasants in the Vale do Jamari.

Made available in DSpace on 2014-10-09T12:54:41Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:07:18Z (GMT). No. of bitstreams: 1 12779.pdf: 5257634 bytes, checksum: da3e185bedc859b98ec9578a9d77a608 (MD5) / A quitosana, um poliaminossacarídeo formado por unidades repetidas de D-glucosamina, é derivada da quitina pela retirada do grupo acetila. Apresenta propriedades iônicas favoráveis agindo como quelante, sendo considerado um removedor de contaminantes de águas residuárias. Possui ampla bioatividade, ou seja, é biocompatível, biodegradável, bioadesivo e biossorvente. A quitosana interage por ligações intramoleculares por meio de seus grupos ativos com outras substâncias, pode revestir materiais magnéticos como as nanopartículas superparamagnéticas de magnetita, produzindo um conjugado polímero-magnetita. Materiais superparamagnéticos são susceptíveis ao campo magnético, assim estas partículas podem ser atraídas e agrupadas por aplicação de um campo magnético e como não retêm a magnetização, podem ser desagrupadas e reutilizadas em processos para remoção de contaminantes de rejeitos aquosos. No presente trabalho, preparam-se as partículas magnéticas de magnetita revestidas e funcionalizadas com quitosana (PMQ). O pó de PMQ exibiu uma resposta magnética de atração intensa na presença de um campo magnético sem, contudo tornar-se magnético, um comportamento típico de material superparamagnético. Foi caracterizado por espectrometria de infravermelho por transformada de Fourier e medidas de magnetização. Avaliou-se o seu desempenho de adsorção de urânio (VI), na forma de íon uranilo UO2 2+, com relação às influências da dose, velocidade de agitação, do pH, do tempo de equilíbrio e estudaram-se as isotermas de adsorção bem como o comportamento de dessorção com os íons de carbonato e oxalato. Constatou-se que a melhor remoção ocorreu em pH 5 e que o aumento da dose aumenta a remoção, tornando-se constante acima de 20 g.L-1. Na cinética de adsorção, o tempo para atingir o equilíbrio foi de 20 minutos. O modelo de isoterma que melhor se aplicou aos dados experimentais de adsorção de UO2 2+ foi de Langmuir, sendo a capacidade máxima de adsorção encontrada igual a 41,7 mg.g-1. Do estudo de dessorção com os íons carbonato verificou-se uma recuperação de 94% de UO2 2+ do PMQ contra 49,9% com ío / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP

In an attempt to increase opportunity and quality of life for people living in poverty,governments and non-government organisations (NGOs) sell and donate products to developing countries. Typically, these are essential household items such as cook stoves, water filters and solar lighting. However, to date there has been limited research into the uptake and long term effectiveness of these products and few methods or tools are available to guide the product development process. This has resulted in a number of well documented product failures as a result of poor design choices. To overcome this problem and provide guidance to future or existing designers and NGOs this research investigated the factors required for long lasting and effective product design. This was carried out through the use of a literature review, the analysis of 64 products, a survey, interviews with product designers, and a case study with a Social Enterprise in Myanmar (Burma). The information gathered was analysed and used to create a framework consisting of various tools to guide designers and NGOs. Specifically, the research focused on the creation of a taxonomy of products designed for developing countries and an assessment method consisting of eight critical indicators for product success. These were presented as a website, set of cards and book which guides and assists designers during the process to ensure that future products are appropriate and to prevent current unacceptable levels of waste. Following the creation of the framework it was evaluated by students, practitioners and existing product users in Myanmar. The findings revealed that participants felt the assessment method and indicator cards were beneficial during the design process and assisted them in the development of more suitable and appropriate products.

The measurement of turbidity is currently conducted using a variety of methodologies for different applications, primarily using calibration standards composed of formazin, a material which can be difficult to obtain, short-lived, and toxic. The discrepancies between the various measurement methods lead to unreliability in sharing meaningful data across applications, and the deficiencies of the primary calibration standard make it difficult to conduct measurements in appropriate-technology environments. This research focused on examining the current methodologies and synthesizing new materials to use as calibration standards. The selection criteria for these materials were such as to ensure longevity, stability in solution, and ease of creation. Results showed that dilutions of dissolved sodium chloride yielded parabolic regression curves of comparable accuracy to formazin, which could be used for device calibration. These standards can be easily and safely synthesized in appropriate-technology settings. The use of fluorescent materials as calibration standards was also investigated, and the implications of the characteristic curves of turbidity versus solute concentration are discussed.

<p>In Lembang, a farming community on western Java, family-sized, plug-flow, polyethylene biogas systems fed with cow dung, are being used as an integrated solution to issues related to energy, agriculture and waste management. Through simple, on-farm research and observation, a number of key problems have been addressed and improvements made to the design. Due to the large supply of cow dung in the area, and the potential to spread the benefits of the technology beyond the homes of dairy farmers, the feasibility of developing a communal, polyethylene biogas system for several households, has been investigated. Experiments on small model-digesters were combined with observations of full-scale biogas systems in use. Measurement equipment and techniques were constructed and developed, in order to measure biogas production and other relevant process parameters. Results indicate that a communal system can be an appropriate choice, but only under a certain set of circumstances.</p>

In Lembang, a farming community on western Java, family-sized, plug-flow, polyethylene biogas systems fed with cow dung, are being used as an integrated solution to issues related to energy, agriculture and waste management. Through simple, on-farm research and observation, a number of key problems have been addressed and improvements made to the design. Due to the large supply of cow dung in the area, and the potential to spread the benefits of the technology beyond the homes of dairy farmers, the feasibility of developing a communal, polyethylene biogas system for several households, has been investigated. Experiments on small model-digesters were combined with observations of full-scale biogas systems in use. Measurement equipment and techniques were constructed and developed, in order to measure biogas production and other relevant process parameters. Results indicate that a communal system can be an appropriate choice, but only under a certain set of circumstances.

Providing support for the agricultural development of small farmers is the main goal of the project Agriculture in Guatemala: Technology, Education and Commercialization (AGTEC). To accomplish this, it is necessary, to identify the characteristics and needs of participants, as well as their environmental, social, and farming conditions. Through this study, two case studies were conducted to identify and analyze the context of small farmers of the region. This research study used qualitative and participative methods, such as interviews, focus groups, and observation, to gather data about the participants' thoughts and opinions concerning their situations. The case study systemically gathered information about the conditions and needs of small farmers to provide a better understanding of the people and their interactions within the farm systems. This needs assessment showed how the farmers' decisions about adoption are related to their interactions on their farms. Therefore, this study analyzed the system, as a whole, to identify priorities among different critical components that will provide optimum results for beneficiaries. These priorities will allow the identification of appropriate technologies that will satisfy the needs of small farmers according to their local, cultural, and economic conditions. The appropriate technologies need to be diffused among the farmers for adoption. Rogers observed that technologies that are diffused by opinion leaders are adopted by their peers. Thus, the second case study analyzed the social networks and their leaders to observe their potential to support the diffusion process of technologies. The study revealed the presence of diverse social networks, one provided by the political structure, others based on organized groups of farmers and other informal networks formed by independent farmers. Data also showed that opinion leaders have desired roles and characteristics among their networks. Therefore diffusion of innovations through formal and non-formal leaders represents a promising strategy as they are recognized and respected by peers. The diffusion of innovations through opinion leaders promotes the active participation of local members, validates the innovations, and sustains adoption over time. Therefore, the analysis of the social networks and selection of opinion leaders supports the diffusion process of the AGTEC project in Chimaltenango, Guatemala.

This dissertation provides a capability creation perspective on the story of China’s technological catching up, or resurgence, if viewed from a broader historical perspective. Since the first Asian tigers caught up to modern technological standards (e.g., South Korea, Singapore), two schools of thought have dominated causal explanations (Nelson and Pack, 1999). The first perspective is the conventional accumulation approach, which attributes the major share of growth to the accumulation of physical and human capital, and views learning as a more-or-less automatic byproduct of those investments. The second perspective is the assimilation approach, which emphasizes the arduous learning, risk-taking entrepreneurship, and innovation that is involved in the process and argues that the former proposition neglects this aspect of the endeavour and may therefore lead to erroneous estimates. This dissertation focuses on the second school of thought. Compared to the first-tier Asian tigers, the second-tier tigers, of which China is representative, pose many challenges to the assimilation approach. First, the sheer size of the country results in an unusual scale and scope of activities and interactions in any field. Second, the long history of civilization in China suggests that many modern phenomena have historical roots that are unknown to outsiders and invisible and complex to insiders. The present study aims to contribute a small piece of the puzzle to our understanding of the big picture. By providing an in-depth study of the Chinese information and communication technologies (ICT) sector, this study explores changes that have occurred in the three key building blocks of capability creation; specifically, the sourcing, generation, and appropriation of technological knowledge. A qualitative case study approach was employed for the main, empirical part of the study, which consists of extensive firm-level interviews. Complementary statistical data, including patent data and historical archives, were used to provide context and a deeper look into the study topic. The results are described in five articles. The first article presents establishing overseas research and development (R&amp;D) laboratories as one of the major learning methods for overcoming disadvantages related to dislocation from technology sources and advanced markets. This approach allows China to search for industry-relevant scientific knowledge rather than adopting ready-made technologies introduced by western multinational enterprises in China. The second article describes the modularity-in-design approach, which opens new windows of opportunity for technological advancement. The lack of essential intellectual property rights (IPRs) acts as a key inducement and a factor-saving bias that influences the direction of innovation. When both (international) competitiveness and learning are involved in the catching-up process, the development of industry-wide capability becomes a particularly vital aspect of indigenous innovation. The third article describes the geographic consequences of historically planted industrial capabilities in China’s inland regions, which impact the absorption of different types of industrial knowledge. Fields of industry that are densely populated with patents- IPR thickets- represent a novel situation that was not experienced to the same extent by nations whose technological development occurred earlier. This thesis dedicates two articles to this dimension of knowledge appropriation. The fourth article describes the duality of Chinese ICT patenting, and the fifth article identifies an ambidextrous strategy that depends on where the major competition emerges. In general, the decision to patent and the extent of patenting are determined by four factors: a) the distance to the frontier (Aghion et al., 1997) particularly for technology; b) the nature of the technology (Teece, 1986), but with a rural extension in the case of China; c) the specificities of information (Arrow, 1962) that are embodied in a firm’s origins in China; and d) the supporting institutions that co-evolve in that process. Learning proceeds at different levels: that of individuals, firms, industries, and nations.   This dissertation provides an industry-level perspective on learning and innovation-based technological advancement. / from developing economy to global high-tech competitiveness - the case of Chinese ICT expansion

Alternative fuels and technologies for truckload carriers can provide significant environmental and social benefits over traditional heavy duty diesel vehicles by reducing petroleum-based fuel consumption and vehicle tailpipe emissions. These alternative fuels and technologies, however, often carry a cost premium or require significant capital investment. Dedicating vehicles, equipment, and infrastructure to an alternative fuel or technology also represents a significant risk in the extremely volatile trucking business. A Triple-Bottom-Line analysis, which includes economic, social, and environmental impacts of an alternative fuel or technology will strengthen the business case by incorporating the benefits of emissions reduction. A stronger business case will promote the use of alternative fuels and technologies while mitigating the risk. This thesis proposes a method for identifying alternative fuels and technologies that provide the best Triple-Bottom-Line benefit and provides a structure for modeling the emissions of the target application, quantifies the value of emissions reduction, and constructs a Triple-Bottom-Line business case. The Triple-Bottom-Line business case proposed by this method is incremental. It presupposes an existing or planned truckload carrier business already exists and only investigates the changes which occur with implementation of an alternative fuel or technology. This method may be useful for any carrier business or any company with an extensive shipping and logistics network. A case study, which was created for large automotive manufacturer, details the Triple-Bottom-Line business case for an on-site compressed natural refueling system and vehicles.

Thesis (M.Soc.Sc.) - University of KwaZulu-Natal, Pietermarizburg, 2009. / Full text also available online. Scroll down for electronic link.