Recherche uO, le dépôt numérique de l'Université d'Ottawa, réunit le matériel de recherche et d'enseignement créé par notre communauté universitaire et nos partenaires. Le savoir de l'Université est ainsi disponible à long terme et en accès libre, ce qui lui procure de la visibilité et facilite sa diffusion.
Communautés dans DSpace
Sélectionner une communauté pour parcourir les collections sous-jacentes.
Nouveaux dépôts
Type d'Item : Item , THE REFORM OF INSTITUTED MINISTRIES IN LIGHT OF SPIRITUS DOMINI AND ANTIQUUM MINISTERIUM: CANONICAL DEVELOPMENTS AND SYNODAL IMPLICATIONS(2026-11-05) Bawanthade, Anthoni; Glendinning, ChadThe 2021 motu proprios Spiritus Domini and Antiquum ministerium, promulgated by Pope Francis, mark a decisive moment in the Church’s reception of Vatican II’s ecclesiology by reshaping the theological and canonical understanding of instituted ministries. These reforms ground instituted ministries explicitly in baptism and recognise the catechist as a stable form of ecclesial service. In light of these developments, this thesis offers a comprehensive historical, theological, and canonical study of instituted ministries, beginning with the fluid and charismatic roles of the early Christian communities and tracing their gradual incorporation into the clerical cursus honorum, their codification as minor orders, and their consolidation within the Tridentine framework. The reform initiated by Ministeria quaedam (1972) abolished the minor orders and established the instituted lay ministries of lector and acolyte; however, the subsequent formulation of c. 230 in the 1983 Code of Canon Law left unresolved tensions concerning baptismal foundations, women’s participation, and the distinction between instituted, temporary, and extraordinary ministries. Through a critical analysis of these historical trajectories and recent papal reforms, the thesis argues that instituted ministries must be understood within a synodal framework that emphasises co-responsibility, discernment, and the recognition of charisms. It evaluates the adequacy of the current canonical structure, identifies limitations in the existing terminology and categorisation, and proposes a more flexible continuum of ministries capable of responding to diverse pastoral realities. Drawing on historical precedent, theological reflection, and contemporary pastoral practice, the study also considers the possible institution of a ministry of deaconess, clearly distinguished from the sacramental diaconate yet expressive of baptismal participation. Overall, the thesis contributes to the ongoing theology and canon law of ministry by articulating a coherent model in which instituted ministries function as an authentic expression of synodality and the shared mission of the People of God.Type d'Item : Item , Understanding Resilience and Well-Being Among Community Health Workers in Ghana: Meanings, Contextual Processes, and Seasonal Dynamics(Université d'Ottawa / University of Ottawa, 2026-11-04) Sakeah, James Kotuah; Krentel, Alison; Colman, IanCommunity health workers (CHWs) are central to the delivery of primary health care interventions in many low- and middle-income countries. In Ghana, CHWs play an important role within the Community-based Health Planning and Services programme, supporting household follow-up, health promotion, referrals, community mobilization, disease prevention, and public health campaigns. Despite their importance to community-based primary health care, CHWs often work under difficult social, material, programmatic, and environmental conditions. Many also combine their health-related responsibilities with household, livelihood, and community obligations. These realities raise important questions about how CHWs experience resilience and well-being, what conditions shape these experiences, and whether they change across seasonal contexts. This article-based thesis examines resilience and well-being among CHWs in Ghana through three connected studies conducted in the Upper East Region. The first study explored how CHWs understand and describe resilience and well-being in their own terms. The second examined the contextual processes and factors that shape these experiences across individual, relational, community, structural, and seasonal domains. The third used a prospective longitudinal cohort design to examine seasonal variation in resilience and well-being across dry, rainy, and transition/harvest seasons, and to assess the relationship between resilience and well-being over time. The qualitative studies used phenomenological inquiry and interpretative phenomenological analysis, while the longitudinal study used repeated seasonal surveys and linear mixed-effects models. The findings show that CHWs understood resilience not as a single personal trait, but as a dynamic process involving cognitive and adaptive strategies, emotional regulation, communal support, and spiritual coping. Well-being was similarly described as broad and interconnected, encompassing environmental, financial, mental and emotional, physical, social, and spiritual dimensions. Across the studies, resilience and well-being were shaped by personal motivation, family support, peer relationships, community recognition, supervision, incentives, gendered expectations, resource constraints, and seasonal pressures. The longitudinal findings showed clear seasonal patterns in both outcomes, with important differences by district and incentive frequency. Higher resilience was consistently associated with higher well-being, although this relationship varied across seasons and was strongest during the rainy season. Overall, the findings show that CHW resilience and well-being are dynamic, social-ecological, and seasonally shaped experiences. Supporting CHWs therefore requires more than expecting them to remain committed and resilient. It requires attention to the relationships, resources, recognition, supervision, incentives, and seasonal realities that make resilience and well-being possible. This thesis contributes to a context-sensitive and programme-relevant understanding of how CHWs sustain themselves while supporting primary health care in Ghana.Type d'Item : Item , Effects of Wildfire Smoke Particulate Matter and Extreme Heat on the Risk of Congenital Heart Defects in Canada(Université d'Ottawa / University of Ottawa, 2026-11-04) Kim, Yijun; Hawken, Steven; Lavigne, EricBackground: Wildfire events and temperature anomalies have been increasing in frequency due to climate change. Prenatal exposures to resulting environmental stressors, including wildfire smoke (WFS) PM₂.₅ and extreme heat events (EHEs) may be associated with adverse birth outcomes, specifically congenital heart defects (CHD). Methods: The study cohort was developed using health administrative data across Canada, excluding the province of Quebec. Environmental exposures of PM₂.₅ (all-source, WFS, and non-WFS) and ambient temperatures were assigned to each mother-infant pair based on the maternal residential history. Results: No significant association between WFS PM₂.₅ and CHD was observed. Similarly, no consistent association was identified for EHEs, and no significant additive interaction between WFS events and EHEs was observed. Conclusion: Overall, no clear evidence of association between WFS PM₂.₅ and EHEs on CHD risk was observed. Further research on the implications of wildfires on the relationship between environmental factors and adverse birth outcomes is warranted.Type d'Item : Item , La mise en œuvre du DELF scolaire dans un contexte ontarien de français langue seconde : une étude de cas écologique(Université d'Ottawa / University of Ottawa, 2026-11-04) Van Geel, Samantha; Arnott, StephanieMalgré l'intérêt croissant pour le Diplôme d'études en langue française (DELF) scolaire au Canada (Vandergrift, 2015), aucune étude n'a encore examiné sa mise en œuvre ni ses effets de washback (Alderson et Wall, 1993) dans le contexte de l'enseignement du français langue seconde (FLS). Le washback est en effet susceptible de survenir lorsqu'un examen standardisé, tel que le DELF, est introduit dans un milieu scolaire (Spratt, 2005). Cette recherche a donc visé à comprendre la mise en œuvre du DELF dans un conseil scolaire anglophone offrant des programmes de FLS, en explorant les (micro)politiques, les croyances et les (inter)actions des acteurs participant à son organisation, à sa passation et à la préparation des élèves. Ancrée dans la théorie des systèmes écologiques (Neal et Neal, 2013), elle a analysé comment ces dimensions se manifestent dans les macro-, exo-, méso-, micro-, onto- et chronosystèmes. Cette étude de cas multiméthode qualitative (Creswell, 2015) a combiné un questionnaire, des entrevues semi-dirigées, des observations auprès d'organisateurs, de formateurs, d'enseignants, de correcteurs de l'examen et d'élèves, ainsi qu'une analyse documentaire. Les analyses qualitatives thématiques, quantitatives descriptives et l'analyse synthétique (Paillé et Mucchielli, 2016) révèlent que les gouvernements fédéral et ontarien financent la mise en œuvre intentionnelle du DELF dans le but de renforcer la confiance en français et l'identité bilingue des élèves. Dans ce contexte, les acteurs scolaires du FLS du conseil scolaire participant (inter)agissent au sein de et à travers de multiples systèmes écologiques afin de mettre en œuvre cet examen, leurs (inter)actions étant influencées par leurs croyances à l'égard du DELF et par les (micro)politiques qui l'encadrent. Ces conditions ouvrent la voie au washback de cet examen : la mise en œuvre du DELF amène en effet les acteurs à penser et à agir d'une manière qu'ils n'auraient pas faite en son absence. Toutefois, les résultats révèlent que ce washback est lui-même influencé par les (inter)actions et les croyances des acteurs, ainsi que les (micro)politiques qui régissent l'examen. Ainsi, le washback du DELF possède une nature multidirectionnelle : il influence l'écosystème du FLS au sein duquel il émerge tout en étant lui-même influencé par celui-ci. Ces résultats mettent en lumière une implication importante pour le programme DELF du conseil scolaire participant : les acteurs peuvent tirer parti de cette dynamique multidirectionnelle afin d'orienter le washback vers des effets bénéfiques, tant sur les plans pédagogique et psychologique que sur les plans linguistique et culturel.Type d'Item : Item , Nanostructured DNA Barcodes: Paving the Way for Digital Data Storage with Solid-State Nanopore Readout(Université d'Ottawa / University of Ottawa, 2026-11-04) Mensing, Philipp; Tabard-Cossa, VincentHumanity is creating information at speeds never seen before in human history. All this information needs to be stored and preserved for future generations. Modern electronic data storage is ideal for short-term storage and quick access but lacks longevity and requires huge amounts of energy. The production of storage capacity is also being outpaced by the rate of information generation. Alternatives for digital data storage solutions need to be found to provide a reliable, low-energy, and low-cost platform. Using DNA as a storage medium for data is one of the more promising technologies put forward to address this issue. DNA is stable for long times and requires minimal energy to keep the information contained within it. One of the ways proposed to store digital data on strands of DNA is the use of nanostructured DNA barcodes in the form of structured molecular attachments to a DNA carrier that encode sequences of binary pieces of information. An ideally suited readout mechanism for these nanostructured molecules is the solid-state nanopore. Nanopore blockage currents are proportional to the size of the molecule, and the presence of different sized attachments will generate distinguishable current spikes in the resulting nanopore current, which can then be interpreted as a binary sequence of bits, thus enabling readout of digital data stored in nanostructured molecules. In this thesis I explore different strategies of building suitable nanostructured DNA barcode carriers that can be read using a solid-state nanopore. I first investigate the dynamics of DNA carrier translocations through solid-state nanopores to better understand the dynamics and kinetics involved with double-stranded DNA translocations to establish them as ideal carriers for these DNA data storage schemes. Next, I investigate different designs of nanostructured DNA barcode carriers and bit attachments to find the optimal size, spacing, and attachment chemistry to generate molecules that can be read reliably by the solid-state nanopore. The key issues to solve to make DNA data storage with nanopore readout possible are ensuring each attachment generates a single peak, adjacent peaks are sufficiently far apart to not merge in the current trace, and different attachments generate distinguishable peaks that can be correctly identified based on their current signatures. Finally, I show that nanostructured DNA barcoding with solid-state nanopore readout is possible and propose further steps to develop a full digital data storage scheme using this approach.