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    Le travail social en milieu scolaire franco-ontarien: regards sur les rôles de leadership pour favoriser le bien-être et la santé mentale des élèves

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    Ce mémoire adopte une approche exploratoire et qualitative pour examiner les rôles de leadership des travailleurs sociaux en milieu scolaire francophone en Ontario. Il met en lumière leurs contributions significatives, pour la coordination et la mise en œuvre des orientations provinciales en matière de santé mentale des élèves. Cette recherche souligne l'importance de reconnaître et de valoriser la diversité des rôles de leadership, qui reposent sur les compétences, les connaissances et les expériences des travailleurs sociaux, pour contribuer de manière stratégique à l'amélioration des systèmes éducatifs en évolution. Les travailleurs sociaux en milieu scolaire, font valoir un style de leadership éthique et compatissant essentiel, fondé sur des principes intégrés au code de déontologie, des connaissances pratiques directes et un engagement envers la justice sociale. En réponse aux défis posés par à la pandémie de la COVID-19, ce leadership est davantage mis en avant-plan, jouant un rôle central, dans la mobilisation des mesures de soutiens pour le bien-être et la santé mentale de la communauté scolaire. Cette reconnaissance a le potentiel d'avoir un impact significatif sur le développement professionnel et identitaire des travailleurs sociaux en milieu scolaire, et sur les programmes universitaires en service social en Ontario. En explorant un domaine de recherche largement sous-exploré, à savoir le leadership en travail social en milieu scolaire, au sein des communautés francophones de l'Ontario, cette étude ouvre la voie à des discussions éclairantes et à des opportunités d'amélioration dans ce domaine.Maîtrise en service socia

    Junction at market value: a new life for the Toronto Weston flea market

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    The City of Toronto’s current urban development is driven largely by efforts to refurbish existing sites, or by the demolition of the existing fabric to construct new buildings. This thesis takes the position that the adaptive reuse of the existing building stock is a more environmentally and socioculturally sustainable option. Focusing on the site of the Toronto Weston Flea Market, which sits at the junction of three distinct neighbourhoods that are undergoing redevelopment for a new transit hub. This thesis develops a set of guidelines for this industrial site’s future adaptability and proposes the design of a mixed-use commercial community hub that offers numerous amenities while reflecting the surrounding neighbourhoods’ identities and values. This thesis presents an adaptive framework with a set of guidelines to reuse the Toronto Weston Flea Market in a single design intervention to promote an alternative to new construction.Master of Architecture (M.Arch

    The efficacy of mobile mental health applications (mHealth apps) in reducing symptoms of anxious and depressive distress in a university population

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    Internet-based self-help interventions, such as mobile mental health applications (mHealth apps), have the potential to enhance mental health service delivery in universities in a cost-effective way. However, the existing literature on mHealth apps is limited and does not sufficiently support their supposed benefits. The present study attempted to evaluate the efficacy of selfguided mHealth apps in reducing symptoms of psychological anxious distress and psychological depressive distress among university students. Students (N = 77; 76.6% female; 17 to 53 years old) completed the Hospital and Anxiety Depression Scale (HADS) prior to being randomized to 6 weeks of intervention with one of three mHealth apps marketed for reducing anxiety (DARE, Mindshift, or Stresscoach), or an active smartphone-based control to rule out the digital placebo effect (Coloring Book for Adults app). After 6 weeks, students completed the HADS again as a follow-up measure of app effectiveness. The results did not support the effectiveness of the mHealth apps in reducing anxious or depressive distress (Pillai’s Trace = .024, F(6, 146) = .290, p = .941). However, the results suggested that over time, students’ levels of depression increased, irrespective of app (mean difference = -.698; 95% CI = -1.364 to -0.33). The results also suggested that students with problematic levels of anxious distress at baseline experienced a decrease in symptoms at follow-up, irrespective of app (mean difference = 1.696; 95% CI = .816 to 2.575). Conversely, students who did not report anxious distress at baseline experienced an increase in anxious distress at follow-up, regardless of app (mean difference = -1.806; 95% CI = -2.878 to -.735).Master of Arts (MA) in Psycholog

    Smart mining simulation with an intelligent supervisory agent for automated shovel dig allocation and truck deployment

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    The mining industry faces a substantial increase in data generation, making real-time knowledge acquisition challenging. Mining data from day-to-day operations from monitoring devices and sensors include the location of a truck or shovel, processing rate, and quantity of material mined. The complexity of decision-making in mining has grown due to intricate mineral deposits and the need for improved productivity. The focus of this thesis is to develop a decision support framework referred to as smart mining architecture (SMA), which leverages the power of simulation and reinforcement learning for understanding mining system interactions and enhancing mining operational performance. The mining operation and activities of mining equipment are simulated and modelled using a discrete event simulation (DES) and an agent-based model (ABM) respectively. The primary objective of this research is to develop an intelligent supervisory agent capable of making smart decisions such as block sequencing, truck-shovel dispatching and equipment maintenance and repairs towards improved operational performance. A reinforcement learning deep quality network (DQN) algorithm is used to develop and train the agent. The aim of the agent is to learn a policy that maximizes the expected return by interacting in real-time with its environment taking smart actions to improve the learning policy. The developed intelligent supervisory agent (ISA) was successfully implemented for a bauxite mine. The model was used to perform block sequencing, truck-shovel dispatching and equipment maintenance and repairs in the SMA. Experimental cases with integrated ISA were compared with experimental cases without the ISA. The output results with ISA maintained consistent production levels in the presence of mining operational uncertainties. Additionally, in the final experiment involving the DES, ABM and ISA, there was 3% increase in total cashflow from the smart management of the short term mine plan and mining equipment deployment as compared to experiments without the ISA. With the introduction of the ISA, fewer workers are required to run the mining operation resulting in financial savings. Fewer workers also mean less interaction between people and equipment leading to improvement in health and safety records and occupational health challenges

    The impact of two robotic-assisted devices on the functional hand recovery in post-stroke adult rehabilitation: a review

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    Hand movement impairment is a common complication after a stroke that impedes patients from performing Activities of Daily Living [ADLs] independently and returning to the workplace. It diminishes their quality of life and imposes a substantial socioeconomic burden. Therefore, regaining hand movement after a stroke has meaningful quality-of-life and quality-of-work-life outcomes for patients. Treatments aimed at full hand function are leading strategies for stroke recovery programs. The effects of implementing robotic devices as a form of rehabilitation alone or in combination with other rehabilitation strategies, such as conventional treatment, have been investigated in several articles. This review explains the role of rehabilitation robots and summarizes recent advances in stroke survivors’ hand rehabilitation when using Gloreha or Tyrosolution robots. We conclude that robotic devices improve post-stroke hand recovery, especially in terms of motor function and activities of daily living.Master of Human Kinetic

    Microbial ecology of wastewater treatment and residuals

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    Every day, municipal activities and industrial processes consume and contaminate a large volume of water, which must then be treated before being returned to aquatic ecosystems. Wastewater treatment plants (WWTPs) use physical, chemical, and microbiological processes to clean the water, which in turn produces sludge. Sludge, an organic waste product, historically has been landfilled, but can be diverted from landfills if it used as a resource for biogas methane production or as organic fertiliser on damaged ecosystems. Microbial communities are the ecosystem engineers driving changes in organic matter and chemistry throughout wastewater treatment, methane production, and soil development, and modern mass sequencing tools allow us to survey the microbial community composition associated with different environments and outcomes. In this thesis, I looked at the microbial communities and treatment endpoints of interest associated with anaerobic digestion, land application, and production of WWTP sludge. In my first research project, I examined methane production from anaerobic digestion of 11 pulp and paper mill WWTP sludges. Mean methane potential varied between sludges, and kraft mill primary sludges produced more methane than biosludge, whereas other mills showed inhibition in primary sludge. Methane production only occurred in sludges with high diversity prior to anaerobic incubation. In my second project, 8 treatments of organic-derived industrial residuals, including WWTP sludges and controls, were applied to plots in semi-barren smelter- impacted land around Sudbury, and trees were planted to evaluate value in ecosystem restoration for the Sudbury Regreening Program. Treatment effect on soil chemistry and the microbial community was largely associated with pH changes, and soil metal concentrations did not increase beyond regulatory limits, so treatments with liming capacity are likely suitable for use in the Sudbury Regreening Program. In my third project, I surveyed the microbial communities of 4 WWTPs around Sudbury in summer and winter to compare seasonal differences. WWTPs had differences in bacterial, archaeal, and eukaryotic communities in summer and winter. Archaeal community changes showed similar patterns across WWTPs, but bacterial communities had different patterns for WWTPs that demonstrated nitrification, and eukaryotic communities had different patterns across all WWTPs. Overall, I demonstrated similarities and differences in microbial communities degrading organic matter across multiple treatments in association with WWTP sludge.Doctor of Philosophy (PhD) in Boreal Ecolog

    Architectural succession: a multi-species approach to the built environment

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    A novel approach to single-species design is urgently required. Urban expansion is directly impacting global biodiversity, increasing habitat-threatened species reliance on human infrastructure. Whereby recognizing the architect’s responsibility to provide habitat for additional species, the built environment can be utilized for multi-species inhabitation. Derived from the natural cycle of ecological succession, Architectural Succession outlines the process of change occurring for a built environments program and user over time. Informed by this framework, a Research Creation process examines the at-risk Chimney Swift and its food source within a successional multi-species structure. Further enhancing Sudbury, Ontario’s, Regreening efforts, barren outcroppings offer significant opportunity for multi-species built intervention, encouraging habitat recovery and the return of species at-risk. A wildlife observation pavilion explores the successional opportunities of traditional light wood frame construction undergoing the decomposition process to support the regrowth of the forest.Master of Architecture (M.Arch

    Optimal data allocation method considering privacy enhancement using E-CARGO

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    With the rise in popularity of cloud computing, there is a growing trend toward the storage of data in a cloud environment. However, there is a significant increase in the risk of privacy information leakage, and users could face serious challenges as a result of data leakage. In this paper, we propose an allocation scheme for the storage of data in a collaborative edge-cloud environment, with a focus on enhanced data privacy. In addition, we explore an extended application of the approach to sourcing. Specifically, we first evaluate the datasets and servers. We then introduce several constraints and use the Environments-Classes, Agents, Roles, Groups, and Objects (E-CARGO) model to formalize the problem. Based on the qualification value, we can find the optimal allocation using the IBM ILOG CPLEX Optimization (CPLEX) Package. At a given scale, the allocation scheme scores based on our method improve by about 50% compared to the baseline method and the trust-based method. Moreover, we use a similar approach to analyze procurement issues in the supply chain to help companies reduce the carbon emissions. This shows that our proposed solution can store data in servers that better suit their requirements and is adaptable to other problems.Master of Science (MSc) in Computational Science

    YouTube et la cohésion sociale au sein des diasporas africaines Cas des communautés camerounaises et congolaises de Toronto

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    Dans cette étude, nous avons évalué la perception de l'influence des réseaux sociaux sur la cohésion sociale. Nous nous sommes concentrés sur les communautés virtuelles formées par les diasporas congolaises et camerounaises de Toronto, qui se rassemblent autour des chaines YouTube d'information politique. Nous avons examiné comment l'utilisation de cette plateforme vidéo affecte les interactions, le partage d'informations et les valeurs culturelles au sein de ces communautés, ainsi que leur cohésion en tant que groupe social. Nous avons également examiné l’influence de l'âge, de l’éducation et de la durée de résidence sur l’utilisation de YouTube et la cohésion sociale. Nous avons cherché à comprendre comment les membres des communautés perçoivent les émissions politiques diffusées sur YouTube et leur impact sur la cohésion sociale. Nos résultats n'ont pas révélé de corrélation entre l'utilisation personnelle de YouTube et l'opinion générale sur l'impact des émissions politiques diffusées sur cette plateforme. Nous avons constaté la complexité de la relation entre les émissions politiques sur YouTube et la perception de la cohésion sociale. D'après l’opinion des enquêtés, la cohésion sociale est peu liée aux émissions politiques sur YouTube. Nous avons également constaté que, pour les communautés diasporiques, YouTube remplit trois fonctions : informer, divertir et servir de prolongement de la vie culturelle et sociale du pays d'origine. En ce qui concerne l’utilisation de la plateforme, les deux groupes exploitent YouTube pour maintenir des liens sociaux, se divertir et s'informer. Cependant, ils ne l'utilisent pas de manière intensive pour diffuser des messages ou produire du contenu.Maîtrise ès arts (MA) en sociologi

    Gold mineralisation in a chemically reactive host: the Archean Gold Mineralised Vickers Dioritic Intrusive Complex, Nunavut Canada.

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    The Vickers albitised dioritic intrusion (VDI, 2668 ± 6 Ma), located in the central Hearne sub- domain of Nunavut, hosts a significant gold discovery (2012; e.g., hole PB-12-09 164.41 m @ 5.39 ppm Au). The intrusion (equilibrated to lower-greenschist-facies) is located in the northern part of the 2.72 to 2.65 Ga Tavani greenstone belt, an area that has been interpreted to contain the Pistol Bay Corridor, a west-northwest-trending brittle/ductile deformation zone. The VDI is an elliptical (900 x 600 m) heterogeneous igneous intrusion emplaced into the siliclastic Evitaruktuk Formation, part of the sedimentary Kaminak Group, and contains highly anomalous Au mineralisation focused along its northeastern contact. Pyrite and arsenopyrite, spatially associated with gold mineralisation, occur proximal to quartz- carbonate± chlorite veins that increase relative to the severity of hydrothermal alteration. Several gradational alteration assemblages are present in the mineralised zone, including chlorite- (CF1+CF2) and silica-facies (SF1I + SF2I) that are restricted to the VDI, and sericite-facies (SF1FW+SF2FW) in the footwall. By integrating petrographic observations, LA-ICP-MS analysis (sulphide mapping, Pb isotopes), in situ SIMS δ18Oquartz and δ34Spyrite, arsenopyrite, and other geochemical data (whole rock, SEM, etc.), a working model is proposed. The preferred model suggests that a metamorphic fluid carrying Au as a bi-sulphide complex was focused along a rheologically favourable contact and subsequently reacted with the Fe-oxide - rich VDI and precipitated Au via sulphidation reactions.Master of Science (M.Sc.) in Geolog

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