The study is a narrative account of Chilean men who came to Canada after the September 11th, 1973 overthrow of government. In-depth interviews are used to reflect the life stories of 12 political exiles living in Saskatoon and Regina, Saskatchewan. This study expands the theme of belonging by analyzing how exiles negotiate identity to their country 25 years after their imposed departure. The accounts reveal how different groups of exiles draw on a view of their past as to reinforce links to the homeland. The question of identity is examined through the changing nature of exile political discourse and how that discourse provides meaning and shape to the host and home country. The study therefore asks how Chilean men in Canada remember their country, make sense of their political experiences, and give meaning to the question of belonging in the light of changing circumstances in their lives.

This project is mainly focused on the improving and design of the ventilation system of two rooms at different levels of a gym (Friskis and Svettis in Gävle, Sweden) to reduce the  concentration to never be higher than 1000 ppm. For this purpose, several field measurements were performed in different locations and situations. Two main measurements were necessary. On one hand, the  level in different parts of the rooms during different activities. On the other hand, the air flow through the inlet and outlet ducts of the ventilation system. It was also important to take into account the indoor temperature and humidity. These measurements were enough to analyze the failures of the system and to recognize the worst points of each room. Comparing both rooms, the necessity of changing the ventilation system in one of these rooms was much higher, due to there were measured  values up to 3000 ppm during a typical day in the gym. With this information the consequences of high CO2 levels in human people were analyzed. Among various ventilation systems, displacement ventilation system was proposed as the new design. Theoretical calculations were made to reach to the value of 31.8  in the air change rate (ACH), which was the necessary value for the new design to keep the carbon dioxide level under 1000 ppm.

The study is a narrative account of Chilean men who came to Canada after the September 11th, 1973 overthrow of government. In-depth interviews are used to reflect the life stories of 12 political exiles living in Saskatoon and Regina, Saskatchewan. This study expands the theme of belonging by analyzing how exiles negotiate identity to their country 25 years after their imposed departure. The accounts reveal how different groups of exiles draw on a view of their past as to reinforce links to the homeland. The question of identity is examined through the changing nature of exile political discourse and how that discourse provides meaning and shape to the host and home country. The study therefore asks how Chilean men in Canada remember their country, make sense of their political experiences, and give meaning to the question of belonging in the light of changing circumstances in their lives.

A novel technique by employing a capacitance displacement measurement system to measure the post-weld-shift (PWS) caused by laser welding in the butterfly-type laser diode module packaging process is proposed. Reduction of the PWS is an important issue in developing low-cost and high-performance semiconductor laser module. Prior to the reduction and compensation of the PWS, a measurement system of PWS must be constructed. In comparison to the high-magnification camera with image capturing system (HMCICS) limited in resolution of 0.07£gm due to its pixels, a measurement system with a higher resolution of 0.0254£gm is used. During the measurement procedure, the PWS of the ferrule probed by the sensors is converted into the fiber misalignment shifts. The coupling efficiency can be improved over 70% after compensation. The result indicates that the PWS can be qualitatively measured and quantitatively computed.

The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on March 19, 2010). Thesis advisor: Professor Josephine Stealey. Includes bibliographical references.

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Mexican neoliberalism has systematically undermined Mexico's rural and indigenous populations and created multiple forms of displacement in communities and individual lives. This thesis traces the impacts of displacement in the lives of Mixtec families living and working on the U.S.-Mexico border. As families encounter new circumstances of risk, violation and vulnerability, they develop material, spatial and social strategies to provide safe and meaningful lives, often through contradictory and uneven processes. Central to these processes are power relations and negotiations of class, ethnicity and gender, which both maintain community and continuity as well as further perpetuate systems of inequality and differentiation between groups, families and individuals. The focus on indigenous peoples in Nogales fills important gaps in the literature of indigenous transnational migrants and the U.S-Mexico border, particularly in light of recent border policies, which are pushing more people to the Arizona-Sonora desert region.

This thesis presents the design and theoretical modeling of an aluminum gallium arsenide/gallium arsenide heterostructure from which suspended nanoscale mechanical resonators with embedded two-dimensional electron gas (2DEG) can be made. The mechanical characteristics of the resonator and the piezoelectric actuation scheme are investigated using finite-element modeling. For a 836 nm-long, 250 nm-wide and 164 nm-thick beam with gold electrodes on top, out-of-plane flexural vibrations are verified to be piezoelectrically excited at the beam's fundamental frequency of 925.6 MHz. Fabrication recipes for the making of ohmic contacts to the 2DEG, Hall bars and suspended structures are developed using the designed crystal structure. Electrical properties of the 2DEG are evaluated in both large, unsuspended structures as well as in sub-micron size suspended structures. It is found that the 2DEG has a reasonable electron density of 7.04E11 cm^-2 and electron mobility of 1.72E5 cm^2/(V s). / Thesis (Master, Physics, Engineering Physics and Astronomy) -- Queen's University, 2007-09-28 10:13:56.094

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