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The Involutive Double Coset Property for String C-goups of Affine Type
No full textIn this article we complete the classification of infinite affine Coxeter group types with the property that every double coset relative to the first parabolic subgroup is represented by an involution. This involutive double coset property was established earlier for the Coxeter groups of type and , we complete the classification by showing it also holds for type and the types for all . As this property is inherited by all string -groups of these types, it follows that the corresponding abstract regular polytopes will have polyhedral realization cones.The work of the fi rst author was supported by an NSERC Discovery Grant
Pauline Viardot-Garcia (1821-1910) - Solitude
No full textLike many of the Nineteenth-Century Romantic composers, Pauline Viardot-Garcia (1821-1910) was a skilled pianist, though she is best known for her vocal prowess. According to Beatrix Borchard, Viardot-Garcias's compositions often fit her vocal abilities, as well as her colleagues which includes Viardot-Garcia's piece Solitude.1 An art song, Solitude is in French, and the text was written by Édouard Turquety (1807-1867). it was originally published in a French magazine and later included in a collection titled Dix melodies par Pauline Viardot: Album des chant pour 1850.2 Viardot’s works were not often performed, and the premiere date of this piece is unknown
L'efficacité du programme de l'année à l'étranger pour les étudiants de français au Ghana: perspectives des professeurs et des étudiants
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Arts in French & Francophone Intercultural Study, University of Regina. xi, 166 p.The growing interest in learning French in Ghana has become markedly noticeable. This increase can be attributed to a strategic emphasis placed on French education by the Ghanaian government, driven by the country's close proximity to francophone neighbors like Ivory Coast, Burkina Faso, and Togo. Additionally, in April 2019, the Ghanaian government announced plans to adopt French as one of the nation's official languages, further bolstering this initiative.
This study investigates the effectiveness of a Year-Abroad program in enhancing French language proficiency among students at Ghanaian universities. With a focus on oral competence, the research assesses linguistic improvements by comparing students' proficiency levels before and after their participation, utilizing the Common European Framework of Reference for Languages (CEFR). The interest of this research lies in providing a comprehensive evaluation of the program's impact on students' academic and linguistic capabilities. Additionally, it collects evaluations from French professors to gauge the program’s effectiveness and explores the necessity of ongoing program evaluation to ensure continuous improvement. The findings aim to guide stakeholders, including educational institutions and the Ghana Scholarship Secretariat, in refining the program to maximize benefits for students. This study not only influences educational policy and planning within Ghana but also offers insights for other English-speaking West African countries interested in similar language learning strategies. The ultimate goal is to determine the tangible benefits of immersive language experiences and to substantiate the allocation of resources towards such educational initiatives.
Keywords: Year Abroad, French language proficiency, Language immersion, Linguistic skills, Common European Framework of Reference for Languages (CEFR), French as a Foreign language (FLE).Studentye
Your Brain on Exercise: Correlates of Brain and Cognitive Function Following Acute High-Intensity Exercise
No full textCharacterization of CO2 separation from post-combustion flue gas mixtures using nanocomposite membrane: Molecular dynamics analysis
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Industrial Systems Engineering, University of Regina. xvii, 138 p.Dependency on fossil fuels to fulfill the global energy requirement has led to an increase in the concentration of greenhouse gases in the atmosphere particularly carbon dioxide (CO2) from industrial pollution. This has resulted in environmental impact, climate changes, etc. Hence, carbon capture became the focus of industries and academics to reduce the effects of greenhouse gases. However, capturing those free-flowing CO2, especially from the post-combustion flue gas has been a challenge. On the contrary, membrane-based carbon capture and storage (CCS) became a great option due to its retrofitting capability, sustainability, and reusability. Still, considerable research is required to properly investigate and identify the combination of the composite material which comprises both the characteristics of high diffusion rate, high permeability, and high selectivity. In this research, three different nanocomposite membranes composed of a Polyether-block-amide (PEBAX) matrix reinforced with carbon nanotube (CNT), armchair graphene, and zigzag graphene were modelled using a molecular dynamics (MD) simulation tool. Three different flue gas mixtures were modelled using the combination of CO2/N2, CO2/O2, and CO2/N2/O2 with an equal ratio (1:1) composition of the flue gas mixture and an actual post-combustion (APC) flue gas mixture ratio. Two different flue gas mixture were considered to understand the influence of the flue gas for variable concentration and density when permeating through the nanocomposite membrane. The nanocomposite membranes were characterized to determine the diffusion coefficient, selectivity, and permeability of the flue gas mixtures.
The Molecular Dynamic Simulation results were obtained using LAMMPS MD modelling code and the visualization software, OVITO. The results confirmed that the CNT-based nano-reinforcement performed substantially better compared to graphene reinforcement for high CO2 selectivity and flue gas permeability for both the (1:1) and APC ratio due to high CO2 separation and capturing take place within the CNT, creating a steady flow for the flue gases with lower molecular weight. Whereas zigzag graphene-based nanocomposite with higher free volume was better suitable for the diffusion of CO2/N2 and CO2/N2/O2 flue gas composition for all ratios and CO2/O2 at equal (1:1) ratios. For CO2/O2 at the actual ratio, CNT-reinforced nanocomposite was found to be the better-performing nanocomposite membrane for flue gas diffusion.
Keywords: Nano Composite Membrane, Molecular Dynamics, LAMMPS, Polyether-block-amide (PEBAX), Carbon Nanotube, Graphene, Gas Selectivity, Gas DiffusionStudentye
Numerical study of dam break flow using shallow water equations with particle method approach
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Environmental Systems Engineering, University of Regina. xv, 96 p.A significant concern in fluid dynamics is the dam-break phenomenon, which involves the sudden release of water when a dam breaks down. This event is made more complex due to the presence of obstructions, such as both natural and artificial elements, which can alter the flow of the water. The Moving Particle Semi-Implicit (MPS) method is a numerical method used in Computational Fluid Dynamics (CFD), which combines the advantages of semi-implicit and particle methods. The method has been developed to help simulate water flow behavior after a dam-break. This method breaks the domain into pieces referred to as particles, each representing a specific flow element. This research uses the MPS method in combination with shallow water equations to simulate dam-breaks in the presence of various types of downstream topographies, as well as uniform and non-uniform porous media.
In the present study, various stabilization techniques like artificial viscosity and dynamic stabilization are utilized, and results are compared with experimental and numerical works. In addition, sensitivity analysis is performed to investigate how changes in model parameters affect the overall behavior of the simulation. It is observed that sensitivity analysis is an essential tool for understanding the impact of uncertainties or variations in model inputs on the outputs.
The results demonstrate that the MPS method with the appropriate boundary treatments can effectively predict the flow characteristics of a dam-break wave in different downstream conditions and provide reliable results with satisfying accuracy.Studentye
Archer Library Annual Report 2023-24
No full text“Shhhhh …” is what you used to hear at the library. Predicated on a sense of reverence for historical knowledge and solitary self-improvement, the library was portrayed as a sanctuary from the pressures of everyday life where one could commune with the great thinkers of the past. This year’s annual report demonstrates no less reverence for the thinkers and knowledge of the past, but framed within the context of what all good libraries have always been — a place where the past and the present come together to create the future
Regina Lawn Bowling Club Open-source Accessibility Project
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Fine Arts, Media & Artistic Research, University of Regina. ix, 76 p.This critical engagement paper supports and documents an interdisciplinary project, integrating maker culture, people-centered design, and community-based research to address key issues identified by the members of the Regina Lawn Bowling Club (RLBC) community, including concerns around the ability of the aging members to continue participating in the sport, potential for addressing social isolation, and other concerns related to health and wellness. The questions guiding my creative research were: (1) How could integrating maker culture, people-centered design, and community-based research address identified concerns by the RLBC such as isolation, engagement, and accessibility to continue play and social involvement?; and (2) What kinds of innovative technologies could we produce and build together to create sustainable social connections for the aging community at the Regina Lawn Bowling Club? With the support of the Regina Lawn Bowling Club community, (including consultation, collaboration, and user testing), I designed two devices: an inclusively designed music playing device called the User-Friendly Jukebox (UFJ) and an inclusively designed, electronic-based lawn bowling bowl distance measuring device called the Easy-Shot. This report will discuss the projects and the results of evaluation as a community-based project.Studentye
Memory & action sequences
No full textA Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Bachelor of Arts (Honours) in Psychology, University of Regina. 21 p.Recalling the order of action sequences plays a considerable role in everyday routine functioning, but relatively little is known about the underlying cognitive processes behind the learning of such action sequences. The current study explored the role of prior knowledge in sequence learning, and the relative importance of verbal and motor processing during this learning. Participants viewed a series of action sequences and were either given prior knowledge of the object categories used in the sequences or not and were additionally asked to perform a motor or verbal dual task during learning, or had no dual task. After a delay they were asked to recall the sequence with a novel set of items. Recall for the action sequence was significantly stronger without the presence of a dual task, both with and without prior knowledge. There was also partial evidence that verbal processes may be more heavily involved in learning in comparison to motor processing. These findings indicate that full attention is required for action learning, and that real-world learning of actions may rely most heavily on verbal working memory
Job Demands and Leader Well-Being in the Community Social Services Sector
No full textBackground: Mental well-being has become an increasing concern in Canadian workplaces. However, there is a lack of studies that focus on the well-being of leaders. This is particularly evident in the community social services sector where leaders may face high mental and emotional demands on a daily basis.
Purpose: The purpose of this study was to examine whether psychological fatigue mediate the relationship between job demands and work outcomes, including affective commitment and turnover intention. Furthermore, this study looked at whether workplace supports, including supports from one’s organization, supervisor, and colleagues, moderate the mediated relationship between psychological fatigue and work outcomes