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2017 — Reaction Kinetics and Dissociation constants of Tertiary Alkanolamines for Carbon CaptureRésumé
This research work studies the absorption kinetics of CO2 into aqueous solutions of four amines; {1-[Bis [3-(dimethylamino) propyl] amino]-2-propanol, N, n, n′, n′′, n′′-pentamethyldiethylenetriamine, N, n, n′, n′-tetrakis (2-hydroxyethyl) ethylenediamine, and N, n, n′, n′-tetrakis (2-hydroxypropyl) ethylenediamine}. The experimental results were reported in the form of secondorder reaction rate constants (k2). The kinetics data were measured using the Stopped-flow technique within an amine concentration range of 200 to 1000 mol/m3 and a temperature range of 298 to 318K. The equipment can determine the solution-based kinetics on a millisecond time scale by measuring the reaction rate of the reactants. The different … Lire la suite
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2017 — Some Probability Properties of the Crack DistributionRésumé
The three parameter Crack distribution is useful for statistical analysis in prospective studies connected with the engineering problem of fatigue crack development in a metallic plate under some kind of pressure loading. As special cases it contains such well known distributions as the Birnbaum-Saunders distribution, the Inverse Gaussian distribution, and the Length Biased Inverse Gaussian distribution. These distributions are all related and have their own characteristics. In this thesis, in Chapter 2, I derive new, more direct and more mathematically appealing methods for obtaining the distribution function and the moment generating function for the Crack distribution. In Chapter 3 I … Lire la suite
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2017 — Little Wonders: A Memoir in Four PartsRésumé
My creative thesis, Little Wonders: A Memoir in Four Parts, is a manuscript of literary nonfiction. I reflect on the past with respect to marriage and motherhood in the lives of my grandmother, my mother, myself, as well as on the experiences of my two sons. I explore memories in order to uncover the significance of being able to remember them. This memoir reflects on my decision to make a new life for myself and my sons alone, a conclusion I consider against the life choices of my mother and grandmother, thereby shedding light on the intergenerational transmission of gendered … Lire la suite
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2017 — Inclusive Post-Secondary Education and Qualiy of Life: A Case StudyRésumé
The following study explores the experiences of students in the Inclusive Post-Secondary Education (IPSE) program, Campus For All, at the University of Regina. The case study examines the experiences of the students while using elements of the Schalock, Bonham, and Verdugo (2008) Quality of Life (QOL) framework as a guide for the semi-structured interviews and data interpretation. IPSE programs began to emerge in Canada almost thirty years ago to allow students with intellectual and developmental disabilities the opportunity to attend post-secondary institutions with the intent of offering an authentic and inclusive student experience. Since then a modest body of literature … Lire la suite
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2017 — Role of C3H8 and CH4 in Enhancing the Foamy Oil Phenomena and Performance of CO2-Based Cyclic Solvent Injection in Heavy Oil SystemsRésumé
As light oil resources are continuously depleted, heavy oil exploitation is nowadays being put on agenda to meet the ever-increasing energy demand. Cyclic Solvent Injection (CSI) technique holds great promise as a viable approach to produce heavy oil from thin reservoirs where thermal and gravity-dominated recovery methods fail to sufficiency (and economically) recover oil. CSI, with CO2 being used as the solvent, has become a subject of several investigations and considerable speculation in light oil systems. Nevertheless, not too many studies ventured into realm of application of CO2 in heavy oil systems. In addition, importance of C3H8 and CH4 in … Lire la suite
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2017 — Distributed Architecture for Managing Big Data in Smart GridRésumé
Smart grid is a technological advancement to the traditional power system that provides efficient and reliable utilization of energy resources. Large number of sensors are becoming part of the power network to improve its efficiency. These sensors enable communication between home appliances and power generators to enhance home appliance automation, monitoring and remote control capabilities. As smart power grid incorporates a large number of data-generating embedded sensors; key questions are where in the network to process and analyze the data, and how to perform the analysis. The data in smart grid can be processed either by one central processor or … Lire la suite
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2017 — Nora's Transformative Journey: From A Doll's House and The Little Mermaid to The Way HomeRésumé
This critical engagement paper employs the practical work and research conducted for my MFA graduating installation performance The Way Home. For decades, domestic violence researchers analyzed abused women coping with abuse based on their psyche, which portrayed them as having certain needs that abuse fulfils. The assumption that there is something about abused women that makes them want to be abused overlooked major stress and obstacles that occur when choosing to leave an abusive relationship. While the pursuit of breaking the cycle of violence remains an important issue, I argue for giving more value to women's thoughts and feelings as … Lire la suite
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2017 — On THe Theory of Pricing of Discrete Time Options of European TypeRésumé
The contemporary nancial market appears to be a part of human activity where ideas of Stochastic Analysis, in particular Martingale Theory and Stochastic Ito's integral, have been implemented in a most complete matter. Creating a link between the theory and practice of nance generates new problems in the Theory of Probability and the Financial Mathematics investigating them. Financial markets consists of two main (primary) assets (securities), bonds (rick- less) and shares (risky). Bonds are debentures issued by a state government or a bank with a goal to accumulate capital. As an example we can consider a bank account or government … Lire la suite
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2017 — Evaluation of ionic Liquids Performance in Improving Medium Oil Recovery FactorRésumé
In Saskatchewan, Enhanced Oil Recovery (EOR) techniques were applied in many light and medium oil reservoirs in order to improve oil recovery. One of the most efficient EOR methods is chemical flooding. This research studied the efficiency of introducing various types of Ionic Liquids (ILs), 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]), 1-Ethyl-3-methylimidazolium chloride ([EMIM][Cl]), 1-Benzyl-3- methylimidazolium chloride ([BenzMIM][Cl]), and Trihexyltetradecylphosphonium chloride ([THTDPh][Cl]), on the recovery factor (RF) of medium oil, (Weyburn oil, 30.25 oAPI),at room conditions. The main focus of this research was to investigate the effects of IL concentration, Slug Size (SS), and IL + brine slug initiation time on the (RF). … Lire la suite
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2017 — Motor Imagery Based Brain Computer InterfacesRésumé
Brain Computer Interface (BCI) is an emerging technology which enables humans to communicate with external devices using their brain signals. Motor imagery classification is one such area in BCI systems where the goal is to detect and classify the motor related intentions of humans using their brain signals. The desired accuracy of BCI systems cannot be achieved without the preprocessing and the extraction of discriminant features from raw brain signals. To this end, this thesis first develops a novel extension of multivariate empirical mode decomposition (MEMD) for the preprocessing of the raw brain signals. MEMD is a mathematical tool that … Lire la suite
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2017 — A Multiple-Criteria Approach to Support Complex Decisions in Extreme ProgrammingRésumé
The software industry has been growing rapidly in recent decades, demonstrating an increasing need for software. There are several methods that can be used to design appropriate software to ensure high satisfaction levels. One of these is the agile methodology, which allows development teams to design projects in different iterations. This incremental design allows customers to provide feedback during the design stage, thereby increasing the possibility of delivering satisfactory projects. Most customers do not know what they need at the beginning, which makes it difficult to define the system requirements. In the case of traditional software methods, it is costly … Lire la suite
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2017 — How Climate Change Could Affect The Water Supply of Potash of Potash Solution Mining in Southern SaskatchewanRésumé
Potash mining is one of the most significant industries in Canada and an important part of Saskatchewan’s economy, as potash is a leading commodity by the value of production. During the last decade, there has been an increased number of new potash mine developments and expansion projects within the province. A new solution mine started its operation in May 2017 and five more mines are either under construction, or will be by 2020. All mines but one will utilize a solution technique for ore extraction, and solution potash mining is heavily reliant upon water availability. Currently there is a sufficient … Lire la suite
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2017 — Model Predictive Control of a Time-Varying Phase-Change Heat Transfer Problem with Applications in Enhanced Oil RecoveryRésumé
This thesis is focused on developing a framework for achieving constrained optimal control of phase-change time varying heating process taking place in an electrically heated tank/pipe. The problem of developing a heat transfer model, which captures the dynamics of heating process, is addressed by formulating differential equations using basic laws of thermodynamics and applied physics. In the control design part, adaptive control based on MPC is employed as it offers optimal control performance while enforcing constraints on inputs, outputs, and their rates of change. To capture uncertain and/or varying dynamics, data driven system identification is utilized where system parameters are … Lire la suite
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2017 — Weak and Strong Laws of Large Numbers of Negatively Associated Random VariablesRésumé
In this thesis, the purpose is to investigate the assumptions which are applicable for negative associated random variables to satisfy the weak and strong laws of large numbers. Additionally, sharp exponential inequalities are proved for maximum of sums of bounded and unbounded M-acceptable and negative associated random variables. Regarding the weak law of large numbers, it is proved that the weak law of large numbers is true for negative associated random variables as soon as the weak law is satis ed by independent random variables with identical marginal distributions. Also, the criterion for the weak law of large numbers for … Lire la suite
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2017 — Winter Ecology and Ecophysiology of Prairie-Living Big Brown Bats (Eptesicus Fuscus)Résumé
Hibernation allows animals to survive lengthy periods of energetic deficit, but is not without costs. Hypometabolism, low body-temperature, and inactivity are associated with a variety of costs such as immuno-incompetence, dehydration, and build up of harmful metabolites. Additionally, conditions within hibernacula have a profound influence on hibernation patterns and survival. Periodic arousals and site selection are thought to mitigate these costs, and often involve timing arousals to foraging opportunities and overwintering in locations with stable temperatures and high humidity. I studied prairie-living big brown bats (Eptesicus fuscus) that overwinter in rock crevices and take flight outside of the hibernacula despite … Lire la suite
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2017 — Nonlinear Dynamic Behavior of Single Walled Carbon Nanotubes with an Initial Geometric Imperfection Using Shell Elasticity TheoryRésumé
In this thesis, the nonlinear dynamic behavior of imperfect single-walled carbon nanotubes (SWCNTS) is investigated based on shell elasticity theory. According to the electronic microscope observations, most of the produced CNTS have imperfection and probably, there is not any ideal CNT without any defect. Therefore, in this study, the effect of imperfection on the nonlinear frequency and dynamic behavior is considered based on both classical and nonlocal shell elasticity theories and comparing it with the ideal CNT. The initial imperfection has been considered as a defect resulting from various kinds of defects. The imperfect SWCNT is modeled as an imperfect … Lire la suite
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2017 — Habitat selection and nesting ecology of translocated Greater Sage-grouseRésumé
Sagebrush ecosystems are one of the most imperiled ecosystems in North America. The cumulative effects of habitat loss, fragmentation and degradation of the sagebrush ecosystem threaten the persistence of the Greater Sage-grouse. Sage-grouse depend on healthy, intact areas of sagebrush habitat throughout the year. In Alberta, the sage-grouse population is estimated to be only 5% of what it was in 1968. During the spring of 2011 and 2012, 41 sage-grouse were fitted with GPS transmitters and translocated from stable populations in Montana to active lek sites in southeast Alberta. I conducted research to improve our understanding of translocation as a … Lire la suite
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2017 — A Meta-Analysis of Neuropsychological Outcomes of the Frontal Lobe Following ChemotherapyRésumé
Cancer affects a large number of people. According to the Canadian Cancer Society (2016), the prevalence of cancer is 2.4% or approximately 1 out of every 42 Canadians. Chemotherapy is a common component of cancer treatment protocols; however, there are varying reports of cognitive dysfunction following administration. A proposed mechanism of dysfunction is that chemotherapy expedites the presentation of outcomes associated with the normal aging process, particularly frontal lobe functions (e.g., verbal fluency, planning, and inhibition). As frontal lobe functions have been shown to be more vulnerable to aging than other cognitive processes, these functions were the focus of the … Lire la suite
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2017 — Deep Exclusive Pseudoscalar Meson Production at Jefferson Lab Hall CRésumé
Measurements of exclusive meson production are a useful tool in the study of hadronic structure. In particular, one can discern the relevant degrees of freedom at different distance scales through these studies. In the transition region between low momentum transfer (where a description of hadronic degrees of freedom in terms of effective hadronic Lagrangians is valid) and high momentum transfer (where the degrees of freedom are quarks and gluons), the predictive power of Quantum Chromodynamics (QCD), the theory of the strong interaction, is limited due to the absence of a complete solution. Thus, one has to rely upon experimental data … Lire la suite
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2017 — REVO: A flexible, volumetric approach to mesh constructionRésumé
Meshes are used in a variety of applications to specify the three dimensional (3D) shapes of objects in simulated scenes. For example, a mesh can be used as an animal in an animation movie, a soldier in a video game, or a bulldozer in a simulation application. A straightforward way of creating a mesh is to modify an existing mesh. Although several mesh modi cation algorithms exist, there is a need for an algorithm that constructs a mesh from any combination of existing meshes and simple geometric shapes (called primitives) according to a list of user commands. When visualized, the … Lire la suite
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2017 — Student-Teacher Collaboration and Exploring Student Voice to Improve Classroom Instruction and Action Planning in Grade Nine Health EducationRésumé
The purpose of this action research study was to understand my role as a health educator by encouraging student voice in my grade nine health classrooms. My intent was to collaborate and facilitate student-centered learning with grade nine students to produce meaningful action/advocacy plans in health education. The intent was for students to experience a safe discursive space, and a supportive learning environment to self-express and engage in a wider understanding of complex social and health issues. My aim of this research project is to empower students to have a voice and enable all participants to engage in change through … Lire la suite
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2017 — Acimowin Anaskanak - Story Scrolls: A Methodology of First Nations Art Practices as a Healing ToolRésumé
This study utilizes visual art as a tool to encourage survivors of Indian Residential Schools to share their experiences as a means toward connecting with community and fostering healing. This work is informed by personal and familial experiences and is inspired by First Nations Plains peoples who understood the power of visual art and story as a medicine for trauma. Story Scrolls use historically inspired visual artwork and oral methodologies to create contemporary Indigenous art. Due to the traumatization that occurred to First Nations children in Indian residential schools, many have not shared their personal stories. Story Scrolls combine visual … Lire la suite
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2017 — Calculating and Preserving Star Sets and Star Complements of General MatricesRésumé
This thesis presents several results relating to star sets and star complements of graphs. While a method for calculating star sets and star complements involving pro- jection matrices has been known since their introduction, a second method involving determinants is demonstrated and shown to be equivalent to the rst method. Some of the theory for star sets and star complements is expanded to general diagonalizable matrices, regardless of symmetry. The concept of preserving star sets between two general matrices is introduced and shown to be an equivalence relation, and attempts are made to classify what types of matrices can preserve … Lire la suite
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2017 — Escherichia coli and Rhizobium leguminosarum response mechanisms to sub-lethal 2,4-dichlorophenoxyacetic acidRésumé
The chlorophenoxy herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) is used extensively worldwide despite its known toxicity and our limited understanding of how it affects non-target organisms. To determine the global effects of 2,4-D at sub-lethal levels on Rhizobium leguminosarum bv. viciae 3841 (Rlv) and Escherichia coli BL21, I used a novel combination of methods involving advanced microscopy and metabolomics. Rlv showed an oxidative stress response, but showed adaptive capabilities with changes to specific metabolic pathways and consequent changes to its phenotype, surface ultrastructure, and physical properties during 2,4-D exposure. Interestingly, auxin and 2,4-D, its structural analogue, induced common morphological changes in vitro, … Lire la suite
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2017 — Tall Timber: Roost Tree Selection of Reproductive Female Silver-Haired Bats (LASIONYCTERIS NOCTIVAGANS)Résumé
Habitat loss is the most significant contributor to the extinction of species worldwide, and yet for many species, habitat requirements remain largely unknown. Identifying habitat is important, especially because the most cost effective strategy for conservation and management is preserving habitat before it is converted or degraded rather than trying to restore it after the fact. Identifying habitat is also important from a scientific perspective because it can help to explain some of the ecological choices made by individuals when potentially conflicting priorities exist. Habitat requirements change for many species, both seasonally and throughout their life cycles, and identifying habitat … Lire la suite
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2017 — The assessment of fatigue-related changes in stride mechanics, variability and long-range correlations in recreational and elite distance runners using foot-mounted inertial sensorsRésumé
This thesis was designed to assess stride mechanics, variability and long-range correlations during running, as well as their relationship with fatigue and skill level. For this purpose, three separate experiments were conducted. As a first step, it was established whether a simple hardware setup consisting of a wireless foot-mounted inertial measurement unit (IMU) was capable of accurately measuring individual stride length vectors during distance running. The results showed that the sensor-based method displayed excellent levels of agreement with a 3D motion capture system as the criterion. Subsequently, the same setup was used to track a set of gait variables in … Lire la suite
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2017 — In The Words of Grandmothers: Stories From Indigenous Grandmothers about Their Experiences Raising Their GrandchildrenRésumé
The purpose of this study is to explore and gain understanding about how Indigenous grandmothers experience their roles as primary caregivers to their grandchildren. Using qualitative research methodologies (Indigenous Storytelling and Interpretive Phenomenological Analysis), six Indigenous grandmothers residing in Prince Albert, Saskatchewan shared their grandmothering stories. Four key themes identified were: Reflecting on the past, It’s not always easy, I love my grandchildren, and What I need. Indigenous grandmothers were willingly taking on the primary caregiver role because of concerns for the well-being of the grandchildren and they did not want to lose them to the child welfare system. This … Lire la suite
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2017 — A Repeated Forced-Choice Lineup Procedure: Examining the Impact on Child and Adult EyewitnessesRésumé
In two experiments and one follow-up analysis, I examined the impact of using a repeated force-choice (RFC) lineup procedure with child and adult eyewitnesses. The RFC procedure divides the identification task into a series of exhaustive binary comparisons (i.e., round-robin design) and, in doing so, provides information about (a) who the witness believes is the suspect (if any) and, (b) additional information about how each face in the lineup matches the witness’ memory of a target, relative to every other face. Results from Experiment 1 indicate that younger children (6-to-8-year-olds) struggled with the RFC procedure, while older children (9-to-11-year-olds) performed … Lire la suite
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2017 — Locke's Political MetaphysicsRésumé
Locke’s achievements in political theory have traditionally been viewed in isolation from his metaphysical and epistemological accomplishments. Consequently, many deformations of Locke’s view of the former and the latter have manifested; principal among these is the notion of an atheist and materialist Locke. The goal of the proceeding study is to show how in what I’ve termed, Locke’s “political metaphysics” we see the emergence of a politics that is a consequence of his metaphysical commitments to human beings as free persons. That freedom is understood by Locke, not merely positively, in what one does, or can be seen by others … Lire la suite
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2017 — Effect of Creatine Supplementation Dosing Strategies on Aging Muscle PerformanceRésumé
Creatine supplementation has shown promise for increasing muscle strength, endurance and tasks of functionality in the aging population. However, the optimal dosage of creatine needed to maximize these potential benefits is unknown. The purpose of this study was to compare the effects of different dosages of creatine supplementation on aging muscle performance and functionality. Using a double-blind, repeated measures design, participants were randomized to one of three groups: Creatine-High (CR-H; n = 11; 59.3 ± 3.2 yrs, wt = 82.6 ± 16.8 kg, BMI = 28.3; 0.3 g/kg/day of creatine + 0.1 g/kg/day of maltodextrin), Creatine-Low (CR-L: n = 9; … Lire la suite
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2017 — Some Artificial Neural Network Rule Extraction Algorithms for Nonlinear Regression Problems and Their ApplicationRésumé
Inspired by the operation mechanism of the human brain, artificial neural network (ANN) is a computational system that exhibits high predictive power, great adaptability, and robustness. However, despite the high predictive accuracy, ANN models are opaque and do not provide researchers with explicit relationships between the predictor and predicted attributes of the studied problem. Therefore, to overcome this drawback, three ANN rule extraction algorithms, namely the PWL-ANN, the enhanced-PWL-ANN, and the EURECA algorithms, were proposed in this study. The PWL-ANN algorithm extracts rules from trained ANN models by approximating the hidden neuron sigmoid functions by 3-piece linear functions. Whereas, the … Lire la suite
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2017 — Slow Sand Filtration Treatment of Agriculturally-Impacted WaterRésumé
Agricultural runoff and influence to surface water is a widely experienced problem across the world, particularly in treating that water for potable consumption. Although many effective methods have been researched, there are few that can be considered suitable for rural regions, in-home and on-site water treatment, and extremely smallscale design without requiring significant chemical use, operator skills and sophistication, and large-scale to be economically viable. This research focuses on the use of slow sand filtration (SSF) as one of the most effective methods for potable water treatment that can meet all of the above criteria. The experiments were designed using … Lire la suite
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2017 — Modelling the Future of Clean and Transitional Energy Systems from Conventional Fossil Fuel DevelopmentRésumé
The continuously increasing demand for energy has resulted in the fast depletion of conventional energy sources, resulting in a high degree of environmental issues worldwide. This thesis consists of a review and model development to determine the opportunities and impacts (i.e. cumulative equivalent CO2 emissions produced) of implementing various clean and transitional energy systems within the context of a large scale power facility (the Boundary Dam Plant, in Canada). Based on conducted work, it was recommended that there was potential for co-generation facilities using renewable energy systems (i.e. biogas) equipped with carbon capture and storage. An emission forecasting model was … Lire la suite
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2017 — Teachers' Perceptions of Leadership Approaches of In-School AdministratorsRésumé
The purpose of this study was to collect, analyse, and represent teachers’ stories of experience regarding varied leadership approaches of in-school administrators. In this study, I focused on teachers' perceptions of the role of the in-school administrators as viewed through teachers' experiences of the leadership approaches of in-school administrators and the impact of these perceptions on the teachers’ professional practice. Data collection occurred in two stages: first, an anonymous online survey was completed by 63 participants; and second, one-on-one confidential interviews were conducted with seven participants. All research participants were practicing teachers from southern Saskatchewan schools, and all volunteered to … Lire la suite
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2017 — Smoking and Multiple Sclerosis: A Systematic Review and Meta-Analysis Using the Bradford Hill Criteria for CausationRésumé
Background. Multiple sclerosis (MS) is one of the most common neurological disorders in the world. However, the cause(s) of MS is unknown. Studies have suggested that smoking may be related to the development and progression of MS. The Bradford Hill criteria are commonly used to assess potentially causal associations. However, to date, no systematic reviews and meta-analyses had used these criteria to comprehensively evaluate the relationship between smoking and MS. The objective of this research was to assess the relationship between smoking and both MS risk and MS progression through a systematic review and meta-analysis, subsequently applying Hill’s criteria to … Lire la suite
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2017 — Policy Agenda Setting and Twitter - Three Cases from CanadaRésumé
Social media sites are arenas for online collaboration, political controversy or, at times, mob justice. These sites are also arenas for discussion about policy problems. Dramatic events, amplified by Twitter, create an opportunity for citizens to support solutions to social problems or to hold politicians to account for decisions made or not made. While media portrays such events as transformative and heroic, most policy decisions have a historical pedigree that is invisible to the public. By focussing on three cases of political discussion on Twitter (Idle No More, Copyright, and Cyberbullying), this dissertation measures the extent that policy theory explains … Lire la suite
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2017 — Low Power MAC Security Mechanisms for WSNs in a Smart Grid EnvironmentRésumé
Smart Grid cybersecurity is one of the key ingredients for successful and wide scale adaptation of the Smart Grid by utilities and governments around the world. The implementation of the Smart Grid relies mainly on the highly distributed sensing and communication functionalities of its components such as Wireless Sensor Networks (WSNs), Phasor Measurement Units (PMUs) and other protection devices. This distributed nature and the high number of connected devices are the main challenges for implementing cybersecurity in the smart grid. As an example, the North American Electric Reliability Corporation (NERC) issued the Critical Infrastructure Protection (CIP) standards (CIP-002 through CIP-009) … Lire la suite
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2017 — Litho- and Biostratigraphic analysis of the Upper Cretaceous Carlile and Niobrara formations in southern Saskatchewan, CanadaRésumé
The Carlile and Niobrara formations were deposited during the regressive phase of the Greenhorn cycle and the transgressive phase of the Niobrara cycle (early Turonian-late Santonian). The lateral distribution of these units was controlled by eustatic sea level changes and differential accommodation space generated by dynamic and flexural subsidence of the Western Interior Basin (WIB). Analyses of these two units and stratigraphic equivalents within the Canadian portion of the WIB have been made mainly in the neighboring provinces of Alberta and Manitoba, but little is known about them in Saskatchewan. To fulfill the litho- and biostratigraphic gap of information in … Lire la suite
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2017 — Modeling and Optimization of Cell Formation Problem Using Progressive Modeling and FactDesignRésumé
Cellular manufacturing is the most efficient manufacturing system design option in the mid-volume/mid-varietymanufacturing environments.Designing a cellular manufacturing system is a complex multi-level process consisting of four interdependent stages: 1) cell formation (CF), 2) inter and intra-cell layout design, 3) work scheduling and 4) resource allocation. In this thesis, our focus will be on cell formation stage, widely known in the literature as the Cell Formation Problem (CFP). In this study, a new comprehensive, user-friendly framework is proposed and developed to address a variety of problem formulations. A CFP could be simply modeled as a simple incidence matrix or as complex … Lire la suite
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2017 — Comparative Evaluation of the Performance of Synthetic Polymer and Biopolymer as a Means of Enhanced Oil Recovery MethodRésumé
After regular primary and secondary recovery treatments with ideal oil production no longer occur, enhanced oil recovery methods are introduced to produce the “leftover” oil in reservoir formations. Among the enhanced oil recovery (EOR) methods, polymer flooding is regarded as the most common and widely used treatment globally. By adding water-soluble high molecular weight polymers into water, viscous fluids This work aims to analyze the performance of two types of polymers as a means of EOR by comparing their rheological properties and laboratory 1D sandpack flooding studies. It compares the performance of these polymers against the performance of waterflooding as … Lire la suite
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2017 — Experimental and Mathematical Studies of Cyclic Solvent Injection To Enhance Heavy Oil RecoveryRésumé
It has been suggested that Cyclic Solvent Injection (CSI) is a highly promising technique to recover heavy oil resources at which other recovery techniques are not economically or efficiently available. Therefore, it is necessary to conduct experimental and mathematical studies on the CSI for effective heavy oil recovery purposes. Experimental and data regression studies have been conducted to investigate the effects of the wormhole on the CSI. Nine tests were completed using three sand-pack physical models with different dimensions. Experimental results suggest that the oil production can be divided into two phases: solvent chamber rising phase and solvent chamber spreading … Lire la suite
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2017 — Mental Health Care Seeking in the Canadian Armed Forces Post-Afghanistan: Can Social Support and Paraprofessional Initiatives Help Increase Access to Care?Résumé
Recent research shows an increase in the mental health needs of Canadian Armed Forces (CAF) personnel (Fikretoglu, Liu, Zamorski, & Jetly, 2016). Research also indicates that a portion of CAF personnel with a mental health need do not seek professional mental health care or fail to initiate treatment in a timely fashion (e.g., Fikretoglu, Liu, Pedlar, & Brunet, 2010; Zamorski & Boulos, 2014). Andersen’s (1995; 2008) Behavioral Model of Health Services Use suggests predisposing factors (e.g., age), enabling/impeding factors (e.g., income), and need-related factors (e.g., mental health diagnosis) can help explain professional mental health care seeking behaviors. Several studies conducted … Lire la suite
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2017 — Variable habitat selection and space use among bullsnake (Pituophis catenifer sayi) populations: distance between seasonal habitats drives space useRésumé
The distribution of resources determines space use and habitat selection by snakes. Particularly in northern areas, the proximity of overwintering den sites to summering habitat likely influences space use. The resources driving seasonal movements among habitats may vary among populations and thus, space and habitat requirements may also vary. In addition, human modification may affect resource use by altering available habitats and resources. Although previous studies have reported differences in spatial ecology among populations, the driving factors of this variation remain to be addressed for many species. Bullsnakes (Pituophis catenifer sayi) reach their northern range limits in southern Saskatchewan, where … Lire la suite
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2017 — Vers un traitement sémantique des prépositions françaises: Le cas de à et de deRésumé
A preposition is very important in the structuring of sentences and phrases in the French language. It is the relation or link between a verb and another verb, between a noun and another noun. Our work in this regard tries to look at the semantic characteristics of French prepositions with particular interest on the use of à and de. À in English can be at, and to, while de can either be of, from, about, etc, depending on the context in which they are used. While it is believed that a number of linguists may be less aware of the … Lire la suite
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2017 — Coaching Strategies for Working with Athletes Who Have High Perceptions of EntitlementRésumé
The mainstream media has been increasingly describing athletes as entitled over the past several years and deems this concept of entitled athletes as a plague – something to be remedied. However, in the academic sport community, entitlement is a neglected topic. Using entitlement as it is looked at in education, psychology, and sociology as a base, this research aims to understand entitlement in sport as well as examine strategies coaches use in order to create and maintain success when working with athletes who have high perceptions of entitlement. A qualitative approach consistent with phenomenological principles was used to conduct the … Lire la suite
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2017 — Smart Community Development Framework and Design for Responsible EngineeringRésumé
Significant attention has been put into the role of technology on addressing global environmental and social issues. Literature shows that the technology governance system must be reframed in order to comply with sustainable development principles. The majority of available technologies are not affordable in developing countries nor in poor and remote communities, which are inadequately served by conventional grids and services. Lack of access to proper technology increases social, health, economic, and environmental vulnerability of those places. The design and implementation of ecologically sustainable systems is proposed as one relevant solution for replacing the conventional systems that address the nexus … Lire la suite
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2017 — Qualitative Examination of Mental Health Disclosure in the WorkplaceRésumé
Disclosure of mental health concerns in the workplace has been shown to benefit those who disclose, and such benefits can lead to a reduction in societal costs. In Canada, it is estimated that 20% of the population will suffer from a mental health issue leading to social and occupational impairments. These impairments may lead to increased absenteeism and presenteesim (i.e., employees present to work despite illness), which cost Canadian employers approximately $6 billion in lost productivity. It has been posited that disclosure of mental health concerns to employers may help reduce societal costs through workplace accommodations, the discovery of informal … Lire la suite
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2017 — Characterization of Multiphase Flow in Porous Media and Its Applications in Determining Reservoir Petrophysical PropertiesRésumé
Characterization of multiphase flow in porous media has attracted numerous attentions since primary, secondary, and tertiary recovery methods are developed and applied in the petroleum industry. Physically, three-phase flow (i.e., oil, gas, and water) occurs in porous media during the secondary or tertiary recovery processes, e.g., water-alternatinggas (WAG) injection, while mobilized solids contribute to the flow in heavy oil reservoirs during the primary production, e.g., cold heavy oil production with sand (CHOPS). Considering the complexity of WAG injection and CHOPS processes resulted from hysteresis effect, sand failure, and foamy oil flow, it is still challenging to efficiently and accurately determine … Lire la suite
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2017 — Monstrosities: Genderfluidity as Art PracticeRésumé
This paper engages the art conducted for my MFA graduating exhibition, Monstrosities. The assumptions and inscriptions of gender which inform bodily meanings are critiqued. As a genderqueer/trans person, the issue of how to represent my genderfluidity, despite my ‘female’ sexed body and its implications, is all consuming. Art provides a means. The desire to represent myself is the central theme of the work in my exhibition. This paper is divided into nine sections. The first, Autobiography, Queerness, and My Creative Process, relates to the background that informs my art practice. I discuss definitions and the forces which inform and propelled … Lire la suite
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2017 — We Love Them With All Our Heart: The Lived Experience of Fostering a Child with ADHD Where the Placement Breaks DownRésumé
This study used an interpretative phenomenological analysis methodology to understand the lived experience of foster families providing care for children with a diagnosis of Attention Deficit Hyperactivity Disorder (ADHD) where the foster placement broke down. The data was collected through a semi-standardized interview process with foster parents representing five foster families. The essence was found to be a deep and enduring love between the families and their foster children. Four key themes emerged to express the foster families’ lived experience. Behaviours was the first theme representing the ever-present, persistent, overwhelming, and ultimately defeating behaviours participants experienced. The second theme was … Lire la suite