Liste complète
La lecture de ces thèses nécessite une redirection vers le site du dépôt institutionnel.
-
2012 — Socially-Aware Transportation SystemsRésumé
The trustworthiness of information supplied to users of an Intelligent Transportation System (ITS) application is a crucial factor for the success of these applications, affecting these systems’ credibility and reliability. The criticality of information within ITS applications requires extra steps to make users trust these applications in a way that they will make ITS applications part of their daily use. In this work, a software system is proposed that takes advantage of an online social network as a source of trusted information between different users. This work exploits social relationships to infer trust values between users who are directly or … Lire la suite
-
2012 — Assessing the Performance of Aspen Plus and Promax for the Simulation of CO2 Capture PlantsRésumé
Carbon dioxide is a prominent greenhouse gas whose emissions have significantly increased due to human activities. Fossil fuel-fired power plants are the largest source of CO2 emissions, which results in a need for CO2 capture at these power plants. Prior to building a large scale CO2 capture plant, a pilot or demonstration plant is set up to confirm the feasibility of the plant. Simulation techniques are needed before actually constructing the plant, in order to improve the reliability and to increase productivity. A number of simulation software tools have been developed and are widely used to complete the simulation of … Lire la suite
-
2012 — Investigation of Interplay of Capillarity, Drainage Height, and Aqueous Phase Saturation on Mass Transfer Phenomena in Heavy Oil Recovery by Vapex ProcessRésumé
The vapor extraction (Vapex) process has emerged as a promising recovery technique in low-pressure and shallow heavy oil and bitumen reservoirs where conventional recovery processes are not technically, environmentally, or economically feasible. The Vapex process utilizes horizontal wells for injection of a vaporized hydrocarbon solvent (e.g., propane and butane) at pressures close to their dew point pressures into the reservoir, dissolution of solvent in the oil, and production of in-situ upgraded oil. The realistic approximation of diffusion and convective dispersion occurring on the edge of the vapor chamber is required for reliable prediction of production rates in this process. This … Lire la suite
-
2012 — Geological Effects and Petrophysical Flow Unit Model for the Middle Bakken Member, South-East SaskatchewanRésumé
The Devonian-Mississippian Bakken formation is a relatively thin heterogeneous unit that stretches across the subsurface of the Williston Basin in North Dakota, Montana, Saskatchewan, and Manitoba. In terms of oil and gas exploration, the unit is undoubtedly one of the most important and ranks high on the scale as compared to other oil producing fields. It represents a single petroleum system that consists of a heterogeneous Middle Siltstone and Sandstone Member layered between two black organic rich shale members. The Sandstone Member represents the major potential reservoir while the black carbonaceous shale acts as the source and the cap rock … Lire la suite
-
2012 — Zooplankton as Indicators to Detect and Track the Degree of Acid-Stress to Lake EcosystemsRésumé
It is critical to identify and use appropriate ecological indicators to detect, monitor and assess the impacts of environmental stressors on natural systems in order to effectively legislate, protect and restore ecosystems. Based on strong and predictable community responses to acid-stress, crustacean zooplankton has the potential to be a crucial indicator of acidification in freshwater ecosystems. This thesis is based on evaluating the potential of zooplankton as indicators to detect and track the degree of impact of recent acid deposition on Canadian Shield lakes in north-west parts Saskatchewan. These systems may now be at risk as the area is downwind … Lire la suite
-
2012 — Heterogeneous and Monolithic Catalyst Development for the Biodiesel Production Process & Evaluation of Static Mixers for the Esterification ProcessRésumé
In the present biodiesel production process, sodium hydroxide and sulphuric acid are the conventional homogeneous catalysts used, in spite of their drawbacks, such as soap formation with high free fatty acid (FFA) feedstocks, substantial wastewater generation, issues with the downstream separation process, and corrosion of process equipment. Both of the catalysts mentioned above are difficult to regenerate and involve expensive treatments. Heterogeneous catalysts represent a very attractive alternative for overcoming technological and operational barriers associated with the use of homogeneous catalysts in the biodiesel production industry. Heterogeneous catalysts can be designed to provide high performance stability and durability, and they … Lire la suite
-
2012 — Distribution and Functional Analysis of an ATP-Binding Cassette Transporter-2 in Rhizobium legumionsarumRésumé
Rhizobia are Gram negative, motile, non-sporulating soil bacteria, which interact with legume plants symbiotically to form nitrogen-fixing nodules. In the free-living state, rhizobia dwell in the rhizosphere and surrounding soil where they encounter various environmental stresses such as desiccation stress, nutrient and oxygen limitations, as well as temperature and pH fluctuations. To overcome such conditions, rhizobia adopt different survival mechanisms such as exopolysaccharide (EPS) production, swarming motility and biofilm formation. A previous study identified an ATP binding cassette transporter-2 (ABC) operon, which contains three genes, RL2975-RL2977 (here after referred as RL2975 transporter) that is involved in desiccation tolerance. However, the … Lire la suite
-
2012 — Bringing It All Back Home: Apocalypse, Colonialism, and The Study of ReligionRésumé
In the study of religion, it will not take long before students come across the term “apocalypse” or “apocalypticism.” The place that such terms have made in the study of religion suggests that they refer to very tangible aspects of religious traditions. Moreover, the vast majority of scholarship, by way of comparison, reinforces the idea that the category apocalypse and apocalypticism represent a genre of writing native to Christianity and Judaism. Thus, studies of so-called apocalyptic texts often engage in comparisons of other “apocalyptic” materials contained within the Judeo-Christian tradition. These studies often base their comparisons on literary themes, and … Lire la suite
-
2012 — Sinister Spaces: Liminality and the Southern Ontario Gothic in Margaret Atwood's FictionRésumé
Margaret Atwood’s works are undoubtedly influenced by her academic training in Gothic and Victorian fiction. However, she also incorporates the influences of Southern Ontario – her backyard – and its regional subgenre of Southern Ontario Gothic. While traditional Gothic certainly incorporates binaries, Michael Hurley, the scholar at the forefront of the discussion of this unique subgenre, suggests that characters within this subgenre are entrapped in the liminal spaces created not simply by the meeting of seeming opposites, but at the points where their boundaries are blurred. Atwood’s fiction represents these liminal spaces; however, she provides options for a hopeful ending … Lire la suite
-
2012 — Anti-Oppressive Education Through English Language Arts: A Recollecting JourneyRésumé
This study contributes to the field of anti-oppressive education, with an intentional focus on English Language Arts (ELA). The research addressed perpetuating oppression within education, specifically in ELA. In addressing this problem, I used narrative and Indigenous methodologies as my theoretical frameworks. I feel that Indigenous methodology lies in the realm of story for the betterment of the collective group and future. Identity is (re)produced and influenced by historical background, social construction, racial identity, and religious identity which shape power relations and social positioning. Through students developing critical literacy skills, applying them to curricular material, and transferring their ways of … Lire la suite
-
2012 — An Analysis of Young Offender Case Management Factor Items in SaskatchewanRésumé
The Level of Service Inventory Saskatchewan Youth Ed. (LSI SK Youth Ed.) is a risk assessment tool designed to be used with young offenders to determine the level of service necessary to reduce offending and inform case planning. There are eight vulnerable areas known to be criminogenic identified in the assessment that inform key areas for intervention and treatment in each offender’s case plan. The assessment also appends three sections of supplementary information (case management factor items) that might assist or affect case planning in the eight areas. The three sections consist of: 1) attributes or personal characteristics of the … Lire la suite
-
2012 — Design, Development, and Human Analogous Control of a Climbing RobotRésumé
In this thesis, a re-configurable wheeled climbing robot has been introduced. This robot is capable of doing a multitude of tasks that no other single robot could do in the past. It can climb staircases, move inside empty ducts and pipes, climb up ropes and poles of varying cross sections, and even jump over obstacles with proper motion coordination. It can also move inside narrow passageways by reconfiguring itself. The design of a re-configurable robot capable of traversing a wide range of unconventional terrains is the novelty in this invention. A comprehensive dynamic model of the robot is derived for … Lire la suite
-
2012 — Developing New Tools for Detecting Germline Mutation Induction in MiceRésumé
Identifying factors that influence germline mutation rate in animals is an important toxicological consideration. However, research in this area is limited by the lack of efficient and precise tools for characterizing germ cell mutagens in humans and model species such as mice. Thus, the purpose of my research was to develop new tools for quantifying germline mutation induction in mice. My first objective was to identify polymorphic microsatellites as a new tool for detecting changes in germline mutation frequency. Enrichment and DNA sequencing of microsatellites in closely related inbred mouse lines was used to identify polymorphic loci. The loci were … Lire la suite
-
2012 — Maintaining the "Achievement Gap": How the Discourses of Wide-Scale Assessments Marginalize Students and Preserve the Educational Status QuoRésumé
Using Critical Discourse Analysis and Foucaultian Discourse Analysis, this study applies postcolonial theory to an examination of the discourses of wide-scale reading and writing assessments in Saskatchewan. The study provides answers to three questions examining how the discourses of wide scale assessments in reading and writing construct disadvantages for First Nations and Métis students and simultaneously construct advantages for white settler students. The research data includes the publicly available Assessment for Learning instruments, handbooks, pre-assessment materials, scoring guides and reporting documents for 2005 through 2010, a total of 177 documents. The analysis indicates that there are at least four distinct … Lire la suite
-
2012 — Geological, Petrographic and Geochemical Characterization of the Roughrider West Zone Unconformity-Type Uranium Deposit, Athabasca Basin, SaskatchewanRésumé
The Roughrider unconformity-type uranium deposit is located in northeastern Athabasca Basin, Saskatchewan, and currently comprises 3 mineralized zones: the West Zone, East Zone, and Far East Zone. This study, focused on the West Zone (RWZ), comprises petrographic, paragenetic, and geochemical studies, and aims to document both the mineralization and alteration, and to construct a model for the genesis of the deposit, which may assist in future exploration in the Athabasca Basin. The RWZ is dominantly hosted in the deformed basement rocks (Wollaston Group paragneisses and Archean orthogneisses) underneath the Paleoproterozoic Athabasca Group siliciclastics. Despite being predominantly basement-hosted, it exhibits some … Lire la suite
-
2012 — Randomized Controlled Feasibility Trial of a Self-Help Book for Health AnxietyRésumé
The purpose of this feasibility study was to determine the efficacy of a cognitive-behaviour therapy (CBT) self-help book for health anxiety titled, It’s Not All in Your Head (Asmundson & Taylor, 2005) relative to a wait-list control. It was hypothesized that using a CBT self-help book would be a more efficacious treatment than wait-list control. Health anxiety is marked by anxious preoccupation about having a physical disease, based on the catastrophic misinterpretation of innocuous bodily sensations. It is associated with unpleasant physiological, behavioural, cognitive, and affective symptoms. When elevated, health anxiety affects an individual‘s interpersonal relationships, especially with his or … Lire la suite
-
2012 — L’EMPLOI DE LA LANGUE MAJORITAIRE PAR UNE ENSEIGNANTE EN IMMERSION FRANÇAISE : UNE AUTOETHNOGRAPHIERésumé
The exclusive use of the target language is often considered to be a key element to success in additional language teaching, particularly in French immersion. In Canada, the reality for most students in French immersion is that they do not speak French in the home. School is therefore often the only place where the students have opportunities to use their additional language. This study shows, as well as research has shown that exclusive French use can better aid the students to acquire it. The present study contains my deep reflection, as a teacher and as a person, on my motivation … Lire la suite
-
2012 — Betting on Balance: A Narrative of Aboriginal Problem GamblersRésumé
The basis for this study was founded on the results gathered from inquiry conducted at the master’s level titled, “The Aboriginal Family Members’ Experience of Problem Gambling” (Burnett, 2005), which explored the social, economical, and psychological experiences of Aboriginal family members of problem gamblers who resided in Regina. Results indicated that support services for Aboriginal problem gamblers and their families were insufficient and often times inaccessible. The rise in the prevalence of Aboriginal problem gamblers, combined with a lack of culturally specific supports, fosters the potential for the experience of significant life consequences. Furthermore, current literature indicates that Aboriginal people … Lire la suite
-
2012 — Legislated Oppression: Racism, Patriarchy and Colonialism in the Status Provisions of the Indian ActRésumé
The status provisions of the Indian Act have, since its passage in 1874, endeavoured to define who is and who is not an Indian. The foundation of this status regime has been based on European conceptions of racial and cultural superiority as well as patriarchy. By defining, through legislation, what qualifies people to be Indian the colonial state has caused divisions within First Nations communities and among First Nations people. Through an examination of the different amendments to the status provisions and enfranchisement measures within the different iterations of the Indian Act, this paper makes the case that the current … Lire la suite
-
2012 — Farmers' Perceptions of the Effectiveness of Government Programming at the Ground Level: A Manitoba-Saskatchewan Case Study ComparisonRésumé
This thesis examines the perceived impact of agriculture programming at the ground level in the Rural Municipality of Albert in Manitoba, and the Rural Municipality of Storthoaks in Saskatchewan. It provides a description of agriculture as it was practiced in these communities in 2008, as well as an analysis of how producers perceived the outcome of three specific programs: the Canadian Agricultural Income Stabilization (CAIS) account, Production Insurance (PI) and the Environmental Farm Planning (EFP) program. The Agricultural Policy Framework, implemented in 2003, was the structure upon which these programs originated from. The research measures the effectiveness of the programs … Lire la suite
-
2012 — Oil Recovery Mechanisms and Asphaltene Precipitation Phenomenon in CO2 Flooding ProcessesRésumé
In this thesis, the mutual interactions between a light crude oil and CO2 at the reservoir temperature were experimentally studied. The oil recovery mechanisms and asphaltene precipitation phenomenon in tight sandstone reservoir core plugs during immiscible and miscible CO2 flooding processes were examined. Meanwhile, the physicochemical properties of the produced oils and gases during CO2 flooding processes were thoroughly characterized. Furthermore, numerical simulation was performed to history match the experimental oil production data for the miscible CO2 coreflood tests. In experiment, first, a visualized saturation cell was used to determine the onset pressure of the asphaltene precipitation (Pasp). Second, the … Lire la suite
-
2012 — Producing (White) Teachers: A Geneaology of Secondary Teacher Education in ReginaRésumé
Thinking about race in education, especially in the multicultural or even “postracial” context of 2012, is not an easy thing. A paradox exists: On the one hand, race is powerfully present in teachers, in teaching, and in school contexts; on the other, teachers, generally, are unable to think about their work and practices in the context of race. This dissertation explores this paradox by asking the following question: How does pre-service teacher education produce teachers as racialized subjects? This dissertation is informed by the Foucaultian methodology of genealogy and poststructural theories of subjectivity. Through genealogy, this work presents a cogent … Lire la suite
-
2012 — Maternal Perceptions of Infant Sleep ProblemsRésumé
Infant sleep problems have been found to be related to child, parent, and family difficulties in both the short and long term. Behavioural interventions have been shown to be important for reducing and preventing these associated problems. As the primary caregivers of infants, parents are key figures in providing information about their children to clinicians and researchers. They also determine whether and when to seek treatment for infant sleep problems, and how interventions are implemented. However, little is known about how parents perceive infant sleep problems, a factor that is important in parental decisions for seeking infant sleep interventions. Thus, … Lire la suite
-
2012 — Evidence-Based Development and Initial Validation of the Pain Assessment Checklist for Seniors with Limited Ability to Communicate-II (PACSLAC-II)Résumé
Pain is undertreated in long-term care (LTC) facilities, in part because of difficulties in evaluating pain among seniors with dementia and limited ability to communicate (Wynne, Ling, & Remsburg, 2000). One of the leading assessment tools for this population is the Pain Assessment Checklist for Seniors with Limited Ability to Communicate (PACSLAC; Fuchs-Lacelle & T. Hadjistavropoulos, 2004). Although the PACSLAC has strong psychometric properties and is frequently preferred by LTC staff for its clinical utility (Lints-Martindale, T. Hadjistavropoulos, Lix & Thorpe, 2012; Zwakhalen, Hammers & Berger, 2006), it consists of 60 items that may be considered to be too many … Lire la suite
-
2012 — A Model for Improving the Strategic Measurement and management of Policing: The Police Organisational Performance Index (POPI)Résumé
In order to implement and sustain contemporary-policing, police organisations must operate strategically by focusing on the measurement and management of results (outcomes) and the efficiency of services and programs instead of focusing only on inputs, processes and outputs. Notwithstanding this, it is clear that many leaders of policing have not recognized the necessity to identify and align appropriate organisational performance indicators with an organisational strategy. The present study therefore sought to establish a model for the strategic measurement and management of police organisational performance that would a) embrace the Fundamental Principles of Contemporary-Policing such as consultation, collaboration and an outcome … Lire la suite
-
2012 — An Analysis of the Discourse Function of Saulteaux/mi-/ As Exemplified In A Traditional Cote First Nation Teaching TextRésumé
This thesis has a three-fold purpose. First it presents a Saulteaux narrative collected from a Saskatchewan reserve, Cote First Nation, transcribed, translated and analyzed linguistically. Saulteaux, the Plains dialect of Ojibwe, is spoken in the southern half of Saskatchewan and in Manitoba. The dialect studied in this thesis is the dialect that is spoken in the Kamsack area. Second, the thesis focuses on the use and function of the discourse particle /mi-/ in Saulteaux text structure. Following an introduction to the main thesis topic, a cross-dialectal survey of this discourse particle in Ojibwe, both its morphosyntactic form and word order, … Lire la suite
-
2012 — "When I Get There I Tend To Live There": Home and Community in Radio Cyberspace on CBC Radio 3Résumé
TheRadioHead, long-time member, user, blog participant and listener of CBC Radio 3 (R3) describes the music service as “a place where I will find the nurturing that I need” (TheRadioHead June 2010). This “place” can be found on the website http://radio3.cbc.ca and is further located through daily live webcasts (that are also broadcast on satellite radio), weekly podcasts, music streams and on-demand tracks from thousands of Canadian artists. Through the blogs that accompany the live webcasts, R3 users interact with one another and create what they experience as “community” and “family.” This thesis uses R3 as a case study for … Lire la suite
-
2012 — Effects of Waterflooding, Solvent Injection, and Solvent Convective Dispersion on Vapour Extraction (VAPEX) Heavy Oil RecoveryRésumé
In this study, the detailed effects of waterflooding and solvent injection on vapour extraction (VAPEX) heavy oil recovery are studied by using a visual rectangular sandpacked high-pressure VAPEX physical model with a low permeability. The physical model is sandpacked and then saturated with a heavy oil sample at the connate water saturation. Pure propane and a mixture of n-butane and methane are used as respective solvents to extract two different heavy oils. The waterflooding effect is examined by performing a series of VAPEX tests with the initial waterflooding prior to the subsequent solvent injection. In addition to the visual observation … Lire la suite
-
2012 — Image Quality Assessment Using Level-of-DetailRésumé
Image quality assessment is a very challenging problem in image processing. Most image quality metrics are currently based on super cial variations in pixel values, perceptual models and structural changes. As well, most are full-reference metrics in which a corrupted image is compared with an \original" or \perfect" version of that image. In many practical settings, however, this \perfect" image is not available. At this time, no metric is able to genuinely replicate human perception of quality. This research therefore introduces a new image quality model, one that centers on level-of-detail. Furthermore, the proposed techniques operate without any \original" image, … Lire la suite
-
2012 — Dietary Niche and Foraging Ecology of a Generalist Predator, Double-Crested Cormorant (Phalacrocorax Auritus): Insight Using Stable IsotopesRésumé
The ability of predator populations to expand their ranges and adapt to new environments is often attributed to having a generalist dietary strategy, which is thought to be represented both at the population and individual level. Cormorants (Phalacrocorax spp.) are considered to be opportunistic generalists capable of using a wide variety of aquatic prey. This reputation is partially responsible for the global conflict between piscivorous cormorants and fish harvesters, which is one of the most widespread wildlife management issues in history. Despite the persistent belief that cormorants adversely affect economically important fish populations, relatively little is known about their trophic … Lire la suite
-
2012 — Conceptually-Based Strategy Use Investigating Underlying Mechanisms and Development Across Adolescence and into Early AdulthoodRésumé
Researchers have used inversion and associativity problems (e.g., 2 × 8 ÷ 8, 3 + 19 − 17, respectively) to assess whether or not individuals have the conceptual understanding that addition and subtraction and multiplication and division are inverse operations (i.e., the inversion concept, Robinson & Ninowski, 2003; Starkey & Gelman, 1982) and whether or not they understand that numbers can be decomposed and recombined in various ways and still result in the same answer (i.e., the associativity concept, Canobi, Reeve, & Pattison, 1998; Robinson, Ninowski, & Gray, 2006). It is not known when the development of these two concepts … Lire la suite
-
2012 — Prairie Spirit: Medieval Revival Ecclesiastical Architecture in Saskatchewan, 1839 - 1913Résumé
Architecture is an excellent indicator of the society that produced it. Saskatchewan’s architecture, however, has not received sufficient analysis and there are some major gaps in its history. One of the greatest gaps concerns the medieval revival styles, the Gothic Revival and Romanesque Revival styles. These two styles became especially common in the province’s early religious architecture. Therefore, this analysis focuses on the use of medieval revival styles in ecclesiastical architecture from 1839 to 1913. The Anglican, Roman Catholic, Methodist, and Presbyterian Churches made use of these styles during Saskatchewan’s most competitive, optimistic, and challenging period. In some instances, these … Lire la suite
-
2012 — Effects of Endurance Exercise on Cerebral and Muscle OxygenationRésumé
It has been suggested that during exhaustive exercise both a central and peripheral mechanism of fatigue exists. Indeed, a central debate in the exercise science literature is the nature of fatigue that determines exercise performance under different conditions (Swart et al., 2009a). Hypoxia, for example, has a small but direct role on the cessation of exercise, specifically during endurance performances (Millet, Aubert, Favier, Busso, & Benoit, 2008; Secher, Seifert, & Van Lieshout, 2008). Numerous studies to date have provided new information related to the factors implicated in short-term high intensity exercise, while more studies of a longer nature (endurance time … Lire la suite
-
2012 — Application of Function Approximations to Reservoir EngineeringRésumé
The need for function approximations arises in many branches of engineering, and in particular, petroleum engineering. A function approximation estimates an unknown function, which then finds an underlying relationship within a given set of input-output data. In this study, a Multiple Regression Analysis (MRA), Artificial Neural Network (ANN), and Least Squares Support Vector Machine (LS-SVM) are applied to address some of the most three important ongoing challenges in reservoir engineering. The three ongoing challenges are reservoir fluid properties in the absence of PVT analysis, average reservoir pressure and oil production prediction. 1. The PVT properties of crude-oil such as the … Lire la suite
-
2012 — Experimental Studies for Development of a Purification Process for Single and Mixed Amine SolventsRésumé
Amine solvents used for the removal of CO2 from flue gas are subject to solvent degradation, which results from the reaction of impurities in the gas stream. This leads to the formation of degradation products, which could lead to many operational problems such as changes in the solvent absorption capacity and physical properties. Amine thermal (distillation) or non-thermal (ion-exchange or electrodialysis) reclamation are usually used to purify the solvents. In post-combustion CO2 1- The reclamation process might not effectively handle single or blended amine solvents. The solvent recovery could be low while its content in the waste stream could be … Lire la suite
-
2012 — Implementing an Improved Activated Sludge Model into Modeling SoftwareRésumé
Wastewater treatment modeling software is commonly used to aid in the design and operation of wastewater treatment facilities. This modeling software commonly utilizes activated sludge models that predict bacterial growth based on the Monod equation, which has a number of limitations. These limitations restrict the accuracy of the software and could lead to higher costs due to the overdesign of a wastewater treatment plant. An improved activated sludge model (IASM) was developed by Xu (2010) to address some of the problems associated with the Monod equation. In this study, the IASM is implemented into commercially available wastewater treatment modeling software. … Lire la suite
-
2012 — A Graph-Theoretic View of TeachingRésumé
In computational learning theory, concepts are subsets of a set of instances and a concept class is a set of concepts. In many computational learning models, learning algorithms have the goal to identify the target concept in a concept class from a small number of examples, i.e., labelled instances. We study graph-theoretic representations of concept classes and their connections to a particular notion of learning complexity, namely teaching complexity. Teaching complexity is a complexity measure for the number of training examples needed in teaching models in which a helpful teacher provides examples to the learner. One type of graph that … Lire la suite
-
2012 — Atmospheric Detection of Carbamates and Phenylureas in the Okanagan Valley Using LC-ESI+-MS/MSRésumé
This thesis describes a new analytical method for the determination of twelve carbamates, seven degradation products, and four phenylureas using liquid chromatography-positive electrospray ionization-tandem mass spectrometry with selected reaction monitoring. Chromatographic separation was achieved using a SynergiTM Fusion-RP column with a gradient elution where mobile phase A was 5 mM ammonium acetate with 0.1 v% formic acid and mobile phase B was 0.1 v% in acetonitrile. Method detection limits of 1 to 30 μg/L or 3.7 to 110 pg/m3 for a weekly air sample were achieved. This research project involves the first detection of S-ethyldipropyl thiocarbamate (EPTC), carbaryl, and diuron … Lire la suite
-
2012 — Stressors and Coping Strategies of Older Adults as Caregivers in the Era of HIV/AIDS: A Case Study of BotswanaRésumé
The HIV and AIDS pandemic in Botswana is having a devastating effect on families and disintegrating traditional family structures. The high HIV infection and AIDS related death rate among youth who are economically and socially the productive sector of the population, has forced older adults into the care of AIDS infected and affected family members. As a result, older adults are becoming the main caregivers instead of care receivers. The purpose of this study was to explore the stressors and coping strategies of these older adult caregivers in Botswana. The study adopted a case study methodology and used a purposive … Lire la suite
-
2012 — First Time Users of Therapist-Assisted Internet Cognitive Behaviour Therapy: A Qualitative Examination of Psychology Graduate Students in TrainingRésumé
Depression and anxiety are the most commonly experienced mental health conditions in Canada. Research has shown that one of the significant factors in the under-treatment of mental health conditions is a lack of access to providers. Researchers have begun to create novel ways to address the problem of a lack of access to mental health services, such as offering Therapist-Assisted Internet Cognitive Behaviour Therapy (TAICBT). This involves clients reviewing psychoeducational information on the use of cognitive and behavioural strategies for coping with a mental health condition over the Internet. This is combined with communicating with a therapist who provides support … Lire la suite
-
2012 — Reducts and Rough Set AnalysisRésumé
Rough set theory offers a mathematical approach to data analysis and data mining. It can be used to learn classification rules that define classes of a classi- fication based on some well defined concepts. The fundamental task of rough set data analysis is to precisely construct and interpret concepts. When applying rough set theory to rule learning, the main tasks involve removing redundant attributes, redundant attribute-value pairs, and redundant rules in order to obtain a minimal set of simple and general rules. Following Pawlak, we can arrange these tasks into a three-step sequential process, called Pawlak three-step approach, based on … Lire la suite
-
2012 — Development and Evaluation of a Pain Assessment Training Program for Long-Term Care StaffRésumé
Pain underassessment among older adults living in long-term care has been recognized as an ethical concern and an area requiring further attention. It is estimated that up to 80% of older adults in long-term care suffer from pain (Charlton, 2005). Several researchers have identified discrepancies in the quality of pain assessment and management provided to individuals with and without dementia. Inadequate pain education for staff at the formal training level and through continuing education programs is a possible factor contributing to this problem (Watt-Watson et al., 2004). This study was designed to address the dearth of education through the development … Lire la suite
-
2012 — Comparative Ecology of Three Sympatric Snake Species in Southwestern SaskatchewanRésumé
My research focused on the comparative ecology of three sympatric snake species which are of conservation concern in southwestern Saskatchewan: eastern yellow-bellied racers (Coluber constrictor flaviventris), a Threatened species in Canada; bullsnakes (Pituophis catenifer sayi), Data Deficient, and; prairie rattlesnakes (Crotalus viridis), yet to be assessed, but considered a high priority candidate. Few studies on snake ecology have collected data for multiple species at the same site, a factor potentially important for understanding resource partitioning and competition between sympatric species. Furthermore, identifying which resources elicit competition may be critical for the conservation and management of endangered species. I used radio-telemetry, … Lire la suite
-
2012 — Attachment Orientation, Affect Regulation, and Coping Styles in Young Adults with Persistent, Transient, or Absent History of Deliberate Self-HarmRésumé
The prevalence of deliberate self-harm (DSH) is on the rise, making clinicians more likely than ever to encounter DSH in their clinical practice (Klonsky, 2007; Nock, 2009), and consequently making research that informs such clinical practice increasingly vital. Past research has neglected to adequately explore the differences between absent, persistent, and transient DSH histories and the factors related to increased DSH frequency. Attachment orientation, coping styles, and affect regulation have been implicated as important to adjustment and psychopathology; however, the role of these constructs in DSH and specifically whether they can be successfully applied to explain the differences between DSH … Lire la suite
-
2012 — Oblique Stagnation Point FlowsRésumé
In this thesis, we study the oblique stagnation point flow of a Newtonian fluid on different types of boundaries such as a vertical surface, stretching sheet and shrinking sheet. This study is also examined the effects of heat transfer, chemical reaction, forced convection and mixed convection on oblique stagnation point flow. All of the above mentioned physical problems are transformed into mathematical model using the governing equations of the fluid flow. These equations are then transformed into the set of nonlinear differential equations. The solutions of the transformed equations are obtained using Matlab. In order to check the accuracy of … Lire la suite