Reproduction de : Thèse de doctorat : Physique : Metz : 1990. / Titre provenant de l'écran-titre. Notes bibliographiques. Index.

Reproduction de : Thèse de doctorat : Physique nucléaire : Lyon 1 : 2004. Reproduction de : Thèse de doctorat : Physique nucléaire : Université Laval (Québec) : 2004. / Thèse soutenue en co-tutelle. Titre provenant de l'écran titre. 113 réf. bibliogr.

Thesis (Ph. D.)--University of Chicago, Department of Physics, 2001. / Includes bibliographical references. Also available on the Internet.

At present the literature of counter-monument studies does not account for the complex interactions of irony and nostalgia in memorial spaces. The three case studies examined in this project show that nostalgia can produce critically engaging spaces of deliberation depending on how ironic commemoration intervenes in comic or tragic frames. In order to show that more rhetorical focus is possible, I have challenged the conceptualization of counter-monument studies through what I have termed the “ironic monumental disruption.” Monument studies must address how the idea of the counter-monument, in which the "counter" supposedly resides in the artifact itself, valorizes monolithic critiques and fails to recognize that contexts, interactions, and artifacts all shape the symbolism of the commemorative site. Alternatively, ironic monumental disruptions offer critical and deliberative opportunities in their interactions with visitors and provide more conceptual insight into transitional commemorative practices. The monuments reviewed in this project initially appeared to provide additional reinforcement for escapist, capitalist narratives, but my examination of them has revealed that allowing for (ironic) commemorative contradictions provides discursive openings for publics unknowingly silenced by a lack of public deliberation. Commemorative irony produces valuable insights into the current historical moment and the representational issues created by ideological transitions. The citizens of Bosnia, Bulgaria, and Hungary express varying levels of nostalgia about their communist past, which is why the commemorative sites within these countries create a valuable spectrum of ironic and nostalgic entanglements. Commemorative irony produces valuable insights into the current historical moment and the representational issues created by ideological transitions. / text

Basic interpretive qualitative research design (Merriam, 2002) was used to explore the experiences and events that Aboriginal students reported during the transition from a rural to an urban setting and attend post-secondary school. Three participants, who were both Aboriginal and successful in completion of their first year of post-secondary education, were interviewed. Data was analyzed and five common themes emerged that contributed to their success. These were academic, family and community, culture, financial and social. These findings are discussed in relation to the current research in the area of Aboriginal education, including the First Nations and Métis Lifelong Learning Models. As well, recommendations and implication for future practice are included.

What are the causes and consequences of judicial empowerment? What motivates the political decision to delegate authority to independent judiciaries, and what explains the subsequent behavior of these institutions? Going against current trends in comparative judicial politics, this dissertation answers these questions by taking ideas seriously. Dominant accounts of judicial empowerment and behavior associate the emergence of rights protecting judiciaries with the actions of powerful political actors concerned with the protection and promotion of their political self-interests. In contrast, my analysis of Brazil and Colombia links the emergence of such institutions to the actions of groups and individuals who subscribe to the principled belief that courts should focus their efforts on the protection and promotion of constitutional guarantees. These ideational carriers use their resources to convince institutional designers of the suitability of their proposals, and exert powerful influence over the institutional outcome of constitutional transitions. These actors also influence the actions of newly empowered courts to the extent that they are able to entrench their ideational allies on the bench during the uncertainty of the transition. These findings contradict the arguments that judicial empowerment is designed to weaken electoral opponents or to insulate the political process from popular pressures, and that judges are rational-strategic actors whose main concern is to protect their institutional integrity. / text

Dimerized antiferromagnetic spin-1/2 chains and ladders demonstrate quantum critical phase transition, the existence or absence of which is dependent on the dimerization and the dimerization pattern of the chain and the ladder, respectively. The gapped phases can not be distinguished by the conventional Landau long-range order parameters. However, they possess non-local topological string order parameters which can be used to classify different phases. We utilize the self-consistent free fermionic approximation and some standard results for exactly solved models to analytically calculate the string order parameters of dimerized spin chains. As a complement parameter the gapped phases possess the topological number, called the winding number and they are characterized by different integer values of the winding number. In order to calculate the string order parameters and winding numbers in dimerized spin chains and two-leg ladders we use analytical methods such as the Jordan-Wigner transformation, mean-field approximation, duality transformations, and some standard results available for the exactly 1D solve models. It is shown that the winding number provides the complementary framework to the string order parameter to characterize the topological gapped phases.

In this work, we present a new method for seismic waveform characterization, which is aimed at extracting detailed litho-stratigraphical information from seismic data. We attempt to estimate the lithological attributes from seismic data according to our parametric representation of stratigraphical horizons, where the parameter values provide us with a direct link to nature of lithological transitions. We test our method on a seismic dataset with a strong diagenetic transition (opal-A to opal-CT transition). Given some information from cutting samples of well, we use a percolation-based model to construct the elastic profile of lithological transitions. Our goal is to match parametric representation for the diagenetic transition in both real data and synthetic data given by these elastic profiles. This match may be interpreted as a well-seismic tie, which reveals lithological information about stratigraphical horizons.

Background: Care transitions are a common and frequently adverse aspect of health care, resulting in a high-risk period for both care quality and patient safety (Coleman, 2003; Forster et al., 2003; Picker Institute 1999; van Walraven et al., 2004; Cook et al., 2000). Patients who have complex care needs and undergo treatment from multiple care settings may be at a greater risk for poor care transitions (Coleman et al., 2004). Using quantitative performance measurement scales is one method that can assess the quality of care transitions, and identify areas for improvement. The psychometric properties of the primary performance measurement scale, the Care Transitions Measure (CTM), have not been rigorously assessed, particularly within a higher risk, medically complex population such as older adults with musculoskeletal (MSK) disorders. Furthermore, despite the negative health implications that can result from poor transitions and the commonality of care transitions among persons with complex care needs, there is a significant dearth of research on this crucial aspect of health care. Methods: This research examines the ability of the CTM to adequately assess the quality of care transitions among a complex population of older MSK rehabilitation patients and explores care transitions from the perspective of the patient and the health care provider. Information was gathered through telephone administration of the CTM to MSK patients after they transitioned from inpatient rehabilitation units to home, and through a series of qualitative key informant interviews with a range of health care professionals in care settings relevant to the care continuum of older MSK patients. Inter-rater reliability, a type of reliability that has never been tested with the CTM, and construct validity were assessed and qualitative analyses were used to examine qualitative information obtained through the CTM administration to patients and through the interviews with health care providers. Results: The CTM demonstrated excellent inter-rater reliability for the overall score (intraclass correlation coefficient = 0.77; p=0.03) despite only fair agreement between each item. Internal consistency of the CTM was high (Cronbach’s alpha = 0.94). The construct validity of the CTM was supported; however qualitative data from the patient and health care provider perspectives suggest additional items should be considered for inclusion. Qualitative information from patients also suggests the need for revisions to the wording of some items and the response options. Health care provider interviews suggest that issues surrounding transitional care are similar regardless of the care setting involved. Conclusions: Although the CTM proved to be reliable, qualitative data suggests that the addition of items should be considered to improve the content validity of the CTM, which would in turn improve its construct validity as well. Recommendations for scale improvement are made, as are recommendations for an alternative scale to assess care transition quality from a health care provider perspective. The results of this study support efforts to improve the outcomes of care transitions, care planning, and the overall quality of life for older rehabilitation patients.

The Integrated Land Use, Transportation, Environment (ILUTE) modelling system simulates the activities of agents within the Greater Toronto and Hamilton Area (GTHA) as they evolve over time. However, in its currently implemented form, ILUTE lacks an endogenous treatment of the labour market and the associated wages. This is seen as the major weakness of the current model. This work describes a labour market framework to partially fill this gap and then develops the dynamic disaggregate model of year to year transitions of the labour force status of the people within the GTHA and the set of wage models components of this framework. The data used is a sample of individuals from the Toronto, Oshawa, and Hamilton Census Metropolitan Areas surveyed over twelve consecutive years between 1995 and 2007 in the Survey of Labour and Income Dynamics.