Browsing Arts and Science, Faculty of by Title

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  • Karimi, Leila; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : Dept. of Mathematics and Computer ScienceArts and ScienceDepartment of Mathematics and Computer Science, 2022)
    Motivated by the transportation needs of modern-day retailers, we consider a variant of the vehicle routing problem with time windows in which each truck has a variable capacity. In our model, each vehicle can bring one ...
  • Dahal, Ram Sewak; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta : University of Lethbridge, Dept. of Mathematics and Computer ScienceArts and ScienceDepartment of Mathematics and Computer Science, 2017)
    In this thesis, we studied a generalization of vertex coloring problem (VCP). A classical VCP is an assignment of colors to the vertices of a given graph such that no two adjacent vertices receive the same color. The ...
  • Weasel Head, Gabrielle; University of Lethbridge. Faculty of Arts and Science (Arts and ScienceDepartment of Native American Studies, 2011)
    This thesis explores Blackfoot homelessness in relation to traditional attachments to Blackfoot territory. It addresses the underlying causes of Blackfoot homelessness in the city of Lethbridge. It speaks to the participants’ ...
  • Barros da Cunha, Felipe; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of NeuroscienceArts and ScienceDepartment of Neuroscience, 2021)
    A relatively larger brain is thought to have relatively more neurons and thus higher processing capacity. However, to what extent brain region volumes, and numbers and sizes of neurons vary with brain size remains uncertain. ...
  • Girodat, Dylan J.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Department of Chemistry and BiochemistryArts and ScienceDepartment of Chemistry and Biochemistry, 2019)
    Guanosine triphosphatases (GTPases) are some of the most vital and versatile molecular switches found in all domains of life. For proper functionality these enzymes require allosteric regulation mediated by ligand binding. ...
  • Molina, Leonardo A. (Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, c2012Arts and ScienceDepartment of Neuroscience, 2012)
    NMDA receptor antagonists such as Ketamine and PCP are potent psychoactive drugs used recreationally. This class of drug induces a number of phenomena in humans similar to those associated with schizophrenia including ...
  • Shaik, Shahul; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : Universtiy of Lethbridge, Department of Mathematics and Computer ScienceArts and ScienceDepartment of Mathematics and Computer Science, 2020)
    Trip Planning Queries are considered as one of the popular services offered by Location-Based Services. We propose a new query type called an Alternative Group Trip Planning Query (AGTPQ) which is an extended version of ...
  • Greenshields, Mary Clare; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of English, c2010Arts and ScienceDepartment of English, 2010)
    This thesis is organised into two chapters and an appendix. The first chapter explores the significant American expatriate movement in France in the early part of the twentieth century, in an effort to answer the question ...
  • Chowdhury, S M Erfanul Kabir; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Mathematics and Computer ScienceArts and ScienceDepartment of Mathematics and Computer Science, 2015)
    This thesis is mainly concerned with the orthogonal designs of Baumert-Hall array type, OD(4n;n,n,n,n) where n=2k, k is odd integer. For every odd prime power p^r, we construct an infinite class of amicable T-matrices ...
  • Gholamiangonabadi, Hamed (Lethbridge, Alta. : University of Lethbridge, Dept. of Mathematics and Computer Science, c2012Arts and ScienceDepartment of Mathematics and Computer Science, 2012)
    Our main aim in this thesis is to produce new T-matrices from the set of existing T-matrices. In Theorem 4.3 a multiplication method is introduced to generate new T-matrices of order st, provided that there are some ...
  • Leon, Rebeca; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of NeuroscienceArts and ScienceDepartment of Neuroscience, 2021)
    Changes in neural activity induced by amphetamine (AMPH) are thought to be a direct effect of the drug. However, this may be an artifact of motoric output and/or arousal. Here, we used a model of chronic AMPH taking to ...
  • Appau, Adriana Boakyewaa; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Economics, c2013Arts and ScienceDepartment of Economics, 2013)
    This thesis employs a dynamic form of the gravity model and data from 1988-2005 to estimate the effects of RTAs in SSA on intra-African trade. The thesis proposes a better approach to examining member-nonmember trade ...
  • Chipindirwi, Simbarashe (Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, c2012Arts and ScienceDepartment of Chemistry and Biochemistry, 2012)
    Gene expression is random owing to the low copy numbers of molecules in a living cell and the best way to study it is by use of a stochastic method, specifically the chemical master equation. The method is used here to ...
  • Rahman, Tanzila; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2013Arts and ScienceDepartment of Biological Sciences, 2013)
    Most cancer treatments are genotoxic agents that target and damage DNA as part of their mechanism of action. Recently, it was discovered that cancer cells with damaged DNA can escape the DNA damage checkpoint and enter ...
  • Xia, Qing; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta : University of Lethbridge, Dept. of Biological SciencesArts and ScienceDepartment of Biological Sciences, 2017)
    The biogeography of herbivorous insects often depends on climate and host plants. Potato psyllid, Bactericera cockerelli (Sulc), is an insect that presents a threat to the western Canadian potato industry. It is native to ...
  • Watson, Stephnie; University of Lethbridge. Faculty of Arts and Science (Department of Geography, 2018)
    I completed two research projects for this thesis. The first research project examined fuel efficiency and vehicle emission differences between Lethbridge Transit’s hybrid and diesel buses. The second research project ...
  • Hambrook, Dillon A.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, 2013Arts and ScienceDepartment of Neuroscience, 2013)
    It is usually easy to understand speech, but when several people are talking at once it becomes difficult. The brain must select one speech stream and ignore distracting streams. This thesis tested a theory about the neural ...
  • Gonzalez, Claudia L. R.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2004Arts and ScienceDepartment of Neuroscience, 2004)
    This thesis investigates the behavioural and anatomical correlates of recovery from motor cortex damage in rats. The effectiveness of behavioural, pharmacological, and regenerative treatments was investigated using models ...
  • Farahmand, Hamed; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Biological SciencesArts and ScienceDepartment of Biological Sciences, 2022-09)
    Interaction between pathogens and cannabis plants may have the potential to cause significant yield losses in commercial cannabis growth facilities. Greenhouse studies indicated that fungal pathogens have the most severe ...
  • Hassink, Nicholas J.; University of Lethbridge. Faculty of Arts and Science (Lethbridge, Alta. : University of Lethbridge, Dept. of Geography and EnvironmentArts and ScienceDepartment of Geography and Environment, 2022)
    Preliminary findings from previous research into the thermal biological characteristics of mountain arthropods have determined that temperature plays a critical role in the emergence timing, growth and development rates, ...