Dans cette thèse, on étudie l'homogénéisation de problèmes de conduction et d'élasticité linéarisée en dimension 2 et 3. En dimension 2, on traite d'une part de l'homogénéisation de l'effet Hall considéré comme un problème à faible contraste. On établit d'autre part des résultats de compacité et de dualité pour des suites de conductivités non nécessairement symétriques et non uniformément bornées soit inférieurement, soit supérieurement; ce qui correspond à des problèmes à fort contraste. En dimension 3, on s'intéresse à des structures fibrées non périodiques. D'une part, en s'appuyant sur l'homogénéisation à faible contraste de Tartar, on obtient des modèles homogénéisés en conduction et en élasticité isotrope. De plus, on étend le résultat de Tartar à l'élasticité anisotrope, ce qui permet d'obtenir un modèle simple. D'autre part, en homogénéisation à fort contraste, on obtient un modèle correspondant aux cas où le milieu extérieur est faiblement conducteur.

This research investigated the system by which the social effects of oil sands development on Fort McMurray, a city in northeastern Alberta, are assessed and managed. The research focused on Social Impact Assessment (SIA), Strategic Environmental Assessment (SEA), and the work of an industry initiative, the Regional Issues Working Group (RIWG). The oil sands industry, which involves large, labour-intensive mining and drilling operations in a boom-bust cycle, places considerable pressure on Fort McMurray, a city of approximately 50,000 inhabitants and the only urban area within 350 km of the oil sands. The social effects experienced there include exorbitant housing prices, shortages in service industry labour, insufficient social services, at times, to assist individuals and families who can no longer cope with the difficult conditions in the area, and a variety of other negative effects. Sixteen key informant interviews were conducted with urban planners, municipal politicians, provincial employees, a spokesperson for one of the First Nations in the area, community NGOs, and oil sands industry representatives. Data from the interviews were combined with a literature review and a document analysis. A modified McKinsey 7S Integrated Management Framework was used as a structure for describing and analyzing the Social Effects Assessment and Management System (SEAMS) in Fort McMurray. The SEAMS was found to be weak in comparison to the needs of the community. Project-by-project assessment of oil sands development was found to downplay the cumulative nature of social effects. Furthermore, no legislation or regulation existed that demanded action based on the findings of SIA. As a result, mitigation and management of social effects was insufficient, often occurring only when it was directly in the interests of the oil sands industry. While government and industry have plans in place to resolve some of the negative social effects, their actions were criticized by informants as being uncoordinated, inconsistent and often ineffective. The findings indicate that a strategy for exploiting Alberta's oil sands is necessary. The project-by-project evaluation of oil sands development proposals is not addressing the important long-term and regional social issues that arise as a result of construction and operation of the mines and facilities. A tool recommended for incorporating resolutions to long-term, regional social effects into the development plan is SEA with an explicit Strategic Social Assessment component. This strategic assessment and planning process should be undertaken by a publicly-accountable government body empowered to rationalize the pace of oil sands development based on social, environmental and economic effects, and to coordinate long-term responses by government and industry.

The essay deals with the hill-fort on the mountain Halleberg, Sweden, its wall design, functionality, dating and its possible function as a central location and a place of worship of the ancestors. The Halleberg hill-fort consists of a 1500 meters long at times cohesive stonewalls which together blocked the mountain from its surroundings. Hallberg's natural vertical scree and cliffs along with the masonry blocked the whole mountain from the surroundings. The hill-forts, with few exceptions are largely not investigated archaeologically and its functionality and role in the ancient society is based on outdated research on the subject. The current archaeological interpretation is that hill-forts served as temporary defense in times of unrest or served as center of power for a social elite. The prevailing view in the archaeological sphere is that the hill-forts had a variety of functions and that its functionality and role in ancient society has varied. Halleberg´s strongest wall sections are at the mountain's south-eastern part where the natural driveway, Storgårdsklev is located. Along with the massive masonry of the walls in Bokedalen Storgårdsklev functioned as the hill-forts main entrance. At places along the walls are the remains of what could be interpreted as stacked rocks and possible fire cracked stone. These structural features indicate that the walls were built during the early Iron Age. Very likely has its function like other hill-forts have been varied and changed based on the community, organization and internal and external disturbances. The essay's main interpretation is that the hill-fort served as a defensive fortress. Moreover it is possible that walls of the hill-fort had a symbolic role as a border between two separate rooms in the landscape. The fencing of Halleberg turned the whole mountain to a closed landscape, separated from the surroundings. It may have been a place where people worshiped their ancestors, a place where life's events, life and death was the focus point.

This research investigated the system by which the social effects of oil sands development on Fort McMurray, a city in northeastern Alberta, are assessed and managed. The research focused on Social Impact Assessment (SIA), Strategic Environmental Assessment (SEA), and the work of an industry initiative, the Regional Issues Working Group (RIWG). The oil sands industry, which involves large, labour-intensive mining and drilling operations in a boom-bust cycle, places considerable pressure on Fort McMurray, a city of approximately 50,000 inhabitants and the only urban area within 350 km of the oil sands. The social effects experienced there include exorbitant housing prices, shortages in service industry labour, insufficient social services, at times, to assist individuals and families who can no longer cope with the difficult conditions in the area, and a variety of other negative effects. Sixteen key informant interviews were conducted with urban planners, municipal politicians, provincial employees, a spokesperson for one of the First Nations in the area, community NGOs, and oil sands industry representatives. Data from the interviews were combined with a literature review and a document analysis. A modified McKinsey 7S Integrated Management Framework was used as a structure for describing and analyzing the Social Effects Assessment and Management System (SEAMS) in Fort McMurray. The SEAMS was found to be weak in comparison to the needs of the community. Project-by-project assessment of oil sands development was found to downplay the cumulative nature of social effects. Furthermore, no legislation or regulation existed that demanded action based on the findings of SIA. As a result, mitigation and management of social effects was insufficient, often occurring only when it was directly in the interests of the oil sands industry. While government and industry have plans in place to resolve some of the negative social effects, their actions were criticized by informants as being uncoordinated, inconsistent and often ineffective. The findings indicate that a strategy for exploiting Alberta's oil sands is necessary. The project-by-project evaluation of oil sands development proposals is not addressing the important long-term and regional social issues that arise as a result of construction and operation of the mines and facilities. A tool recommended for incorporating resolutions to long-term, regional social effects into the development plan is SEA with an explicit Strategic Social Assessment component. This strategic assessment and planning process should be undertaken by a publicly-accountable government body empowered to rationalize the pace of oil sands development based on social, environmental and economic effects, and to coordinate long-term responses by government and industry.

In the 1960s a movement by the National Audubon Society encouraged growing communities to set aside a portion of undeveloped land to be used as nature centers to teach conservation and natural history while allowing people to cultivate an understanding and appreciation of nature. This research responds to the need for a greater understanding of who is visiting nature centers in the 21st century and why. A key question is whether or not nature centers have kept up with changing times and advancing technologies. No research has been conducted to determine if nature centers are still relevant today to a society accustomed to living and learning electronically in a virtual reality. In order to determine who visits nature centers and why, a questionnaire was developed and administered to Members and Non-members of the Fort Worth Nature Center & Refuge (FWNC) of Fort Worth, TX. It was determined that visitors to the FWNC were not representative of the general population of the surrounding area. They were older, predominantly white, and had higher education levels. Using the membership in a Friends organization as a representative population of nature center visitors, it was determined that the Non-member visitors were similar to the Members except that they were younger. Members visited the FWNC with a higher degree of frequency than Non-members, but there was no difference in degree of visitation to other nature centers. Both groups identified "lack of time" as the primary barrier to increased visitation. Members appeared to be seeking specific, educational experiences compared to Non-members who tended to seek more general, recreational experiences. Members had more specific knowledge about benefits and services that the FWNC provided the community. Overall, both groups were satisfied with their visits, with Members having a more defined set of expectations and a higher level of satisfaction. This preliminary assessment suggests that nature centers continue to be a relevant source for education, recreation and relaxation, and continue to remain a unique resource in keeping 21st century society connected to the nature world.

As an emerging urban design tool, form-base codes have been increasingly used by urban planners and designers since the 1980s. Focusing on the actual built environment, form-based codes can provide more predictable results of future development and help planners to more easily communicate with people through detailed diagrams to develop consensual visions. Despite all of these advantages, however, there is no study identifying the advantages of form-based codes over conventional codes in both quantitative and qualitative ways. This thesis proposes what aspects of form-based codes have a positive impact on community revitalization compared with conventional zoning and the differences between the regulation systems by establishing evaluation criteria - sustainability, connectivity, diversity, and design optimization and compactness. For clearer analysis, physical standards in both regulation systems will be considered, and those standards will be directly applied to the actual community development project, the Fort McPherson Redevelopment Plan.

Thesis (MS)--University of Montana, 2009. / Contents viewed on November 25, 2009. Title from author supplied metadata. Includes bibliographical references.

Thèse de doctorat : Sciences du langage : Rennes 2 : 2009. / Bibliogr. f. 243-259 (139 réf. bibliogr.). Index des termes, notions et auteurs. Annexes.

Thesis (M.S.)--Naval Postgraduate School, 2002. / Thesis advisor(s): John E. Mutty, Joseph G. San Miguel. Includes bibliographical references (p. 59-61). Also available online.

Thesis (M.A. (Linguistics))--Rhodes University, 2004. / Thesis submitted in partial fufilment of the requirements for the degree of Master of Arts.