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Spring 2010
In this work, we present a unified, general approach to variance reduction in agent evaluation using machine learning to minimize variance. Evaluating an agent's performance in a stochastic setting is necessary for agent development, scientific evaluation, and competitions. Traditionally,...
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A graph-theoretic approach to the construction of Lyapunov functions for coupled systems on networks
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For coupled systems of differential equations on networks, a graph-theoretic approach to the construction of Lyapunov functions is systematically developed in this thesis. Kirchhoff’s Matrix-Tree Theorem in graph theory plays an essential role in the approach’s development. The approach is...
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A journey into school health promotion: district implementation of the health promoting schools approach
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The purpose of the study was to examine a particular division-level implementation of the Health-Promoting Schools (HPS) Approach, the Battle River Project (BRP). Schools have become an important setting to positively affect health behaviors of children and youth. Although evidence exists for the...
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A journey towards professional integration – experiences of immigrant Ph. D. students in breaking down barriers to enter Canadian academia
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This dissertation investigates the internal and external barriers and successes in career preparation of a small group of immigrant doctoral students. Through three cycles of a four-year action research investigation that integrates interviews, surveys, participant reflections and...
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A large deletion virus reveals the presence of previously uncharacterized vaccinia virus inhibitors of NF-kB signaling
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The classical Nuclear Factor kappa B (NF-κB) signaling pathway is an important regulator of inflammation and innate immune responses. Poxviruses, including vaccinia virus, encode multiple immune evasion proteins, including a growing number of NF-κB inhibitors. To determine if additional vaccinia...
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A longitudinal and cross-sectional examination of the relationship between reasons for choosing a neighbourhood, physical activity and body mass index
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Berry, T. R., Blanchard, C., Selfridge, G., Spence, J. C., Edwards, J., Cutumisu, N.
Abstract: Background: The purpose of this study was to examine the relationship between body mass index and neighborhood walkability, socioeconomic status (SES), reasons for choosing neighborhoods, physical activity, fruit and vegetable intake, and demographic variables. Methods: Two studies,...
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A mathematical framework for expressing multivariate distributions useful in wireless communications
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Multivariate statistics play an important role in performance analysis of wireless communication systems in correlated fading channels. This thesis presents a framework which can be used to derive easily computable mathematical representations for some multivariate statistical distributions,...
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A model - data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program site synthesis
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McCaughey, H., Sahoo, A. K., Riley, W., Lokupitiya, E., Price, D. T., Riciutto, D. M., Ciais, P., Dietze, M., Sprintsin, M., Liu, S. G., Chen, J. M., Barr, A., Law, B. E., Schwalm, C. R., Tian, H. Q., Oechel, W. C., Williams, C. A., Davis, K. J., Verma, S. B., Luo, Y. Q., Verbeeck, H., Tonitto, C., Dragoni, D., Peng, C. H., Margolis, H., Gu, L. H., Li, Z. P., Ma, S. Y., Matamala, R., Grant, R., Desai, A., Anderson, R., Hollinger, D., Flanagan, L. B., Fischer, M. L., Poulter, B., Li, L. H., Baker, I., Sun, J. E., Monson, R. K., Schaefer, K., Chen, G. S., Lafleur, P., Kucharik, C., Black, T.A., Izaurralde, R. C., Arain, M. A.
Abstract: Our current understanding of terrestrial carbon processes is represented in various models used to integrate and scale measurements of CO2 exchange from remote sensing and other spatiotemporal data. Yet assessments are rarely conducted to determine how well models simulate carbon...
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A molecular dynamics modeling study on the mechanical behavior of nano-twinned Cu and relevant issues
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As a candidate for dynamic electric contacts, Nano-twinned copper has intrinsic conductivity and enhanced fretting resistance. To better understand its general mechanical behavior, we conduct molecular dynamics simulation studies to investigate responses of nano-twinned copper to stress and to...
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A narrative inquiry into the experiences of two beginning physical education teachers' shifting stories to live by
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The purpose of this research was to inquire into the phenomenon of beginning teacher attrition, and more specifically, beginning physical education teacher attrition and retention. Utilizing the methodology of narrative inquiry, I first studied my own autobiographical stories that brought me to...