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2024 — Investigating population structure and resource use diversity in Lake Huron Lake (Coregonus clupeaformis) and Round (Prosopium cylindraceum) Whitefish using compound specific stable isotopes analysisRésumé
Aquatic thermal pollution from electricity generation, via once-through cooling systems, poses a potential threat to freshwater ecosystems. Research has shown that elevated temperatures can have adverse effects on whitefish reproduction and development, potentially leading to population decline. Despite these risks, there is limited understanding of whitefish population structure in areas affected by once-through cooling in Lake Huron. Population structure assessments are typically conducted with genetic methodologies but population mixing in Lake Huron complicates detection. In addition, genetic methodologies are not able to capture recent ecological aspects of population structure, necessitating the use of additional marker types. The stable isotopes of … Lire la suite
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2015 — The response of the avian community to 40 years of land cover change within the Aspen Parkland and Moist-mixed Grassland ecoregions of the Canadian prairiesRésumé
Since European settlement, over 80% of grassland habitat has been lost in the Canadian prairies, primarily in the Moist-mixed Grassland and Aspen Parkland ecoregions. Native grassland continues to be lost and degraded. Reduction of fire and overgrazing by livestock has allowed woody vegetation to encroach on grasslands. Grassland bird populations in the northern extent of their range have undergone steep declines whereas woodland bird populations have increased. It is unknown whether population fluctuations over the past 40 years are a result of land cover changes during this period. The goal of my research was to address this knowledge gap with … Lire la suite
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2019 — Unconventionality in Thomas Gainsborough's Portrait of Henry Scott: Rethinking the Representation of Dogs as Rational Subjects in Eighteenth-Century British PortraitureRésumé
This thesis reconsiders the perception and status of pets in eighteenth-century Britain through an analysis of the unconventional modes of representation in Thomas Gainsborough’s portrait of Henry Scott, Third Duke of Buccleuch. By examining the social attitudes towards pets in eighteenth-century Britain, this thesis discusses the elevated status of dogs in Britain’s early modern visual culture, which offers new possibilities for understanding the complex and sympathetic relationship between owners and their pets. By reconstructing the identity of the Dandie Dinmont dog in Gainsborough’s portrait of Henry Scott, this thesis provides an alternative narrative for the painting in which the dog … Lire la suite
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2015 — Irrigation Water Requirements under Climate Change and Drought Events in Saskatchewan,Résumé
This research considers the effects of climate change projected by global climate models (GCMs) on irrigated agriculture and water supply in Saskatchewan using 27 different combinations of GCMs, special reports on emissions scenarios (SRES), and time periods (2020s, 2050s, 2080s). Future drought events are extracted from the scenarios using the Standardized Precipitation-Evapotranspiration Index (SPEI) to identify extremely dry conditions, and downscaled to create a daily time-series of temperature and precipitation. The CROPWAT agroclimatic model is used to calculate irrigation water requirements (IWR) under given conditions for two crops commonly grown in rotation, canola and dry beans. This process allows for … Lire la suite
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2012 — Cartographic visualization of Saskatchewan’s population using dasymetric mapping.Résumé
Maps of population density are commonly displayed using the choropleth method. Although choropleth maps are popular in mapping population density, strictly speaking, they are often incorrect due to non-conforming boundaries of populated places and administrative areas. This thesis looks at the dasymetric concept as an alternative to the choropleth map and investigates how it can be applied to display Saskatchewan’s population. Using ancillary data, the dasymetric method can redistribute statistical population data exclusively to areas identified as populated. As a basis for the research, 12 existing dasymetric methods were reviewed and evaluated for their applicability to Saskatchewan. Based on this … Lire la suite
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2022 — Branching Out: Examining the Possibilities and Challenges of Community Garden ExpansionRésumé
The North Central Community Gardens (NCCG) – the urban agriculture program of the North Central Community Association (NCCA) in Regina, Saskatchewan, Canada – introduced the Branch Out Project (BOP) in the summer of 2020. After several years of conversations with community members and discussions among NCCA staff, BOP was designed as a participatory action research project that would promote the expansion of the NCCG into residents’ yards and schoolgrounds as well as facilitate research on the practical and theoretical implications of this initiative. Amidst the many regulations, upheavals to local and global economies, and disruptions of social and cultural lives … Lire la suite
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2019 — Does Exercise Prevent Exacerbation of Anxiety-Related Vulnerability Factors Following An Analogue Stressor: A Randomized Controlled TrialRésumé
The most common mental disorders are anxiety-related disorders (Andlin-Sobocki & Wittchen, 2005). The diathesis-stress model of psychopathology explains that stressors interact with vulnerability factors to influence the development of anxiety-related disorders (Monroe & Simmons, 1991); therefore, modifying vulnerability factors before a stressor occurs may reduce or prevent anxiety. Researchers have observed significant reductions in anxiety-related vulnerability factors following as little as a single session of exercise (Asmundson et al., 2013), suggesting exercise effectively targets vulnerability factors. Research is needed to investigate whether exercise interventions implemented prior to a stressful event can target anxiety-related vulnerability factors, thereby protecting against future anxiety … Lire la suite
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2011 — Mediating the numbered treaties: eyewitness accounts of treaties between the Crown and Indigenous Peoples, 1871-1876.Résumé
This thesis looks at the historical period of treaty-making in Western Canada when six numbered treaties were negotiated between Canada and the Anishnabeg, Cree, Saulteaux, and Assiniboine Nations between 1871 and 1876. The main interpretation of treaty-making during this period is that the treaty commissioners and Indigenous leadership experienced “cultural misunderstandings” and that Euro-Canadian witnesses to treaty did not understand the treaty relationship. As a result, most of the eyewitness accounts by Euro-Canadian fur traders, missionaries, journalists, settlers and government representatives have been ignored by historians. This thesis argues against cultural misunderstandings and shows that Euro-Canadian negotiators and eyewitnesses clearly … Lire la suite
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2016 — Skill retention: A test of the effects of overlearning and skill retention interval on maintenance of infrequently used complex skillsRésumé
While researchers have suggested that overlearning increases the likelihood of skill retention, there is little consensus or evidence as to how much overlearning is required, and how such overlearning interacts with distributed practice schedules. Additionally, most research has measured skill retention based on relatively short re-testing intervals of 56 days or less; however, little is known about whether overlearning can mitigate skill degradation when the retention interval is 6 or 12 months in duration. This research examined the relationship between overlearning and retention by measuring the amount of overlearning attained in a pistol training program and measuring skill across retention … Lire la suite
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2025 — Explaining the environmental policy change of results-based regulation in Saskatchewan’s Ministry of Environment through an advocacy coalition, multiple streams, and critical discourse analysis perspectiveRésumé
Discussions of environmental protection in the Canadian prairie province of Saskatchewan have historically been complex and controversial. With an economy that relies on emissions-heavy industry such as oil and gas production, mining, agriculture and forestry, the Government of Saskatchewan faces unique challenges in responding to the increasing calls for climate action and stricter regulations that will help minimize the effects of climate change. This seemingly deadlocked political and economic situation makes the 2010 introduction of results-based regulation in Saskatchewan a notable policy-making event, intended to both aid in environmental protection while allowing industry to thrive. An in-depth investigation of this … Lire la suite
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2012 — The Fundamental Modules of the Classical Lie AlgebrasRésumé
The main objective of this Thesis is the construction of the fundamental modules of the classical Lie algebras. Weyl’s Theorem shows that if L is a semisimple Lie algebra, then any finite dimensional L−module is a direct sum of irreducible L−modules. Since the classical algebras are semisimple, we just need the irreducible modules in order to obtain the others. On the other hand, the fundamental modules give us every irreducible L− module and, therefore, every finite dimensional L−module. Lire la suite
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2014 — SiPM Arrays as Readouts for the GlueX Barrel CalorimeterRésumé
The GlueX experiment at Je erson Lab seeks to map out gluonic degrees of freedom in order to gain a better understanding of gluons and their interactions with quarks towards elucidating the phenomenon of con nement in Quantum Chromodynamics. In order to accomplish this goal the experiment must be able to detect and measure the four-momentum of a large percentage of the photons produced. A key component in the study of these photons will be the Barrel Calorimeter (BCAL). As a critical component of the GlueX experiment, the BCAL must be fully tested and operational before the beam is delivered … Lire la suite
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2020 — “…And Thanks To The Islamic Staff”: An Action Research Study Exploring Collaboration And Belonging In An Islamic SchoolRésumé
This action research study investigates the use of collaboration in a faith-based Islamic school between Muslim and non-Muslim teachers and how this collaboration influences teacher sense of belonging. Data was collected during eight months using the following methods: semi-formal interviews, focus group meetings, journaling, and photography. From the data, two significant obstacles to collaboration were found: a lack of time and power imbalances. Along with power imbalances, many inequalities between the Muslim and non-Muslim teachers were identified by participants. Participant excerpts point to a perception of issues around respect and support. This perception is due to specific practices such as … Lire la suite
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2018 — Algebraic and Measurable Sub-Product SystemsRésumé
Our main goal, in this thesis, is to conduct a thorough investigation of the math- ematical concept of sub-product system in relation to both quantum dynamical sys- tems and product systems. This notion originates in W. Arveson's pioneering work in non-commutative dynamics theory [5, 7]. The concept has been further extended and analyzed from various perspectives by D. Markiewicz [22], O. Shalit and B. Solel [28], and B.V.R. Bhat and M. Mukherjee [10], among others. The fundamental theme of this thesis is the analysis of relationship between sub- product systems and quantum dynamical semigroups, with emphasis on the role played … Lire la suite
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2020 — The Discovery and Prediction of Genetic Interactions Using Data Science Genetic InteractionsRésumé
The overarching goal of my thesis work was to develop and use data science techniques in order to discover as well as predict genetic interactions (GIs), i.e., functional interactions between gene pairs) so that novel functional associations between genes and their higher-order organizations (protein complexes, pathways and bioprocesses) could be established. Keeping GIs in the center, the work can be divided into three objectives: create useful data on GIs (research article 1; chapter 2), improve methods for predicting the strength of GIs (research article 2; chapter 3), and transfer GI knowledge from one organism to another (research article 3; chapter … Lire la suite
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2024 — Measurement of the pion exclusive electro-production cross-section in the E12-19-006 experiment in Hall-C at Jefferson LabRésumé
One of the most effective methods for exploring the transition from hadronic de- grees of freedom to quark-gluon degrees of freedom in Quantum Chromodynamics (QCD) is through the investigation of \exclusive" pion and kaon electro-production reactions at various Q2 and -t values. The E12-19-006 experiment is conducted within the confines of experimental Hall C at the Thomas Jefferson National Accel- erator Facility, USA, for such studies. The primary aim of the experiment is to first enhance our comprehension of the pion electro-production cross-section and its form factor at Q2 = 0.38 and 0.42 GeV2. This is the first run period … Lire la suite
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2016 — Confidence Ellipses Under the Inverse Gaussian DistributionRésumé
The aim of this thesis is to study con dence regions under the Inverse Gaussian Distribution and how it applies to the construction of con dence ellipses of parameters associated with the Inverse Gaussian Distribution. This thesis consists of two parts, the rst part being the theoretical with where we seek to operate a classical estimation method known as the maximum likelihood. This is achieved by deriving maximum likelihood equations and estimating the Fisher Information matrix for the construction of a normal approximation which gives ellip- tical con dence regions by approximating the Inverse Gaussian Distribution. The second part which … Lire la suite
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2012 — Applicability of Hot Water-Alternate- CO2 Flooding in Heavy Oil Reservoirs,Résumé
Increasing world energy demand and depletion of conventional oil reservoirs is forcing scientists and industry to seek new – unconventional – sources of hydrocarbons. While conventional crude oil accounts for 1.0 trillion barrels, the amount of heavy oil and bitumen is five times larger – 5.4 trillion barrels (Herron 2006). A huge part of these extremely high and difficult to extract hydrocarbons is deposited in Canada. In such heavy oil reservoirs, waterflooding has proved to be inefficient due to unfavourable mobility ratio between displacing and displaced fluids that leads to low sweep efficiency and early breakthrough. This results in high … Lire la suite