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  • Nielsen, Julie L.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2009Arts and ScienceDepartment of Biological Sciences, 2009)
    Cottonwoods are poplar trees that are adapted to riparian zones that are naturally occasionally flooded. Like all Salicaceae, cottonwoods are dioecious and prior studies have indicated that males are more drought-tolerant ...
  • Black, Jodie Lynn Gallais; University of Lethbridge. Faculty of Education (Lethbridge, Alta. : University of Lethbridge, Dept. of Education, 2009Education, 2009)
    Research indicates that students who reside on campus are more likely than commuter students to persist in their studies until graduation. The purpose of this study is to explore factors that may influence retention for ...
  • Craig, Laura; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, 2008Arts and ScienceDepartment of Neuroscience, 2008)
    Alzheimer’s disease (AD) is the most common form of dementia affecting the elderly population today; however, there is currently no accurate description of the etiology of this devastating disorder. No single factor theory ...
  • Mishra, Sandeep; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007Faculty of Arts and ScienceDepartment of Psychology, 2007)
    Crime rates dropped unexpectedly and dramatically in the 1990s. Chapter One describes this drop, and evaluates previous explanations for the decline. A theoretical and empirical link between crime and risk taking at the ...
  • Klassen, Mark E.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2005Arts and ScienceDepartment of Biological Sciences, 2005)
    I tested the twin-threshold model, a risk-sensitive foraging model incorporating both a starvation threshold and a higher reproductive threshold. The model predicts risk-adverse foraging when an animal's energy state is ...
  • Polzin, Mary Louise; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 1998Arts and ScienceDepartment of Biological Sciences, 1998)
    The black cottonwood, Populus trichocarpa, provides the foundtaion for the riparian woodlands throughout southern British Columbia (B.C.) and western Montana (MT). To study the interaction of riparian dynamics and cottonwood ...
  • Philipsen, Laurens J.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta : University of Lethbridge, Dept. of Biological SciencesArts and ScienceDepartment of Biological Sciences, 2017)
    This thesis investigates the historical trends and prospective future streamflow of the Red Deer River and the impacts of streamflow management on the reproduction and health of riparian cottonwood communities along the ...
  • McMurray, David; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007Faculty of Arts and ScienceDepartment of History, 2007)
    This thesis will argue that angling was a complex cultural phenomenon that had developed into a respectable sport for women during the Early Modern period in Britain. This heterogeneous tradition was inherited by many ...
  • Kisko, Theresa M. (Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience.Arts and ScienceDepartment of Neuroscience, 2014-10-03)
    The role of 50 kHz ultrasonic vocalizations as play signals was examined, in this thesis by investigating the effects of devocalization on playful interactions in both juveniles and adults. In both studies, the animals ...
  • Gharbawie, Omar A.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2002Arts and ScienceDepartment of Neuroscience, 2002)
    The ascending cholinergic and serotonergic projections are central to cortical activation and normal behavior. The objective of this thesis was to determine whether unilaterally damaging both of these systems would disrupt ...
  • Hines, Dustin J.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2004Faculty of Arts and ScienceDepartment of Neuroscience, 2004)
    The thesis examines the ability of animals to construct a home base. The home base is a point in space where animals rear, groom, and circle and is a primary element in organized spatial behaviour (Eilam and Golani 1989). ...
  • Filkowski, Jody; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, 2010Arts and ScienceDepartment of Biological Sciences, 2010)
    Cytotoxic chemotherapy is extremely important in adjuvant treatment of breast cancer. Yet, tumours frequently acquire chemoresistance that correlates with increased aggressiveness and poor prognosis. Three theories exist ...
  • Baker, Mike; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2008Arts and ScienceDepartment of Biological Sciences, 2008)
    For over 100 years, cancer radiation therapy has provided patients with increased survival rates. Despite this success, radiation exposure poses a threat to the progeny of exposed parents. It causes transgenerational ...
  • Sidler, Corinne (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences.Faculty of Arts and ScienceDepartment of Biological Sciences, 2014-10-03)
    Aging is associated with the functional decline of organs, and results in age-dependent differences in stress-sensitivity. Younger animals are more sensitive to mutagenic insults than adults, whereas in plants, the transition ...
  • Bilichak, Andriy (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological SciencesArts and ScienceDepartment of Biological Sciences, 2013)
    Significant alterations in the environmental conditions can have pronounced effects on plant genome stability. Recent evidence argues for a global involvement of the components of epigenetic modules in the regulation of ...
  • Kutanzi, Kristy; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2010Arts and ScienceDepartment of Biological Sciences, 2010)
    Epigenetics plays an important role in carcinogenesis with heritable changes in DNA methylation and histone modifications intricately linked to the initiation, promotion, and progression of cancer. Evidence shows that a ...
  • Bye, Cameron M.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta : University of Lethbridge, Dept. of NeuroscienceArts and ScienceDepartment of Neuroscience, 2017)
    The NMDA receptor is a proposed molecular mechanism responsible for the structural changes that occur in neurons during learning and memory formation. I investigate the role that NMDA receptors have in hippocampal spatial ...
  • Zhang, Xiaofei; University of Lethbridge. Faculty of Management (Lethbridge, Alta. : University of Lethbridge, Faculty of Management, c2012Management, 2012)
    This study examines the effects of changes in stock market microstructure on internal market efficiency and explores the relations among internal market efficiency, market co-movement and cross-market efficiency using ...
  • Holec, Victoria; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, [Dept. of] Neuroscience, c2013Arts and ScienceDepartment of Neuroscience, 2013)
    When given a choice between getting a high reward that requires climbing a high ramp or pressing a lever multiple times, versus freely obtaining a low reward, healthy rats prefer the former, while rats with lesions to ...
  • Gulbrandsen-MacDonald, Tine L; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, c2011Arts and ScienceDepartment of Neuroscience, 2011)
    Sutherland, Sparks and Lehmann (2010) proposed a new theory of memory consolidation, termed Distributed Reinstatement Theory (DRT), where the hippocampus (HPC) is needed for initial encoding but some types of memories are ...

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