Digital Commons Network^™

Envisioning The Role Of Community-Owned Stores & Aligning Federal Food Policies: A Participatory Approach To Food Security And Food Sovereignty In Sambaa K’E, Denendeh (Northwest Territories, Canada), Narayan Subramoniam

Theses and Dissertations (Comprehensive)

Northern Indigenous communities have relied on traditional food systems for meaningful, nutritious diets since time immemorial. But many Indigenous communities in remote northern regions of Canada still face disproportionately elevated levels of food insecurity due to climate change radically altering the availability for traditional foods, colonial food policies imposing Western diets, and the high costs of transporting store-bought foods. Extreme weather events such as wildfires further isolate fly-in remote communities increasing both the costs of transporting store-bought foods and the difficulties of harvesting traditional foods. There are many examples of community-based initiatives for supporting traditional and locally grown foods, however, …

Religious And Spiritual Struggles: The Stories Of Nigerian, Immigrant, Christian Women In Waterloo Region, Halima D. Fuller

Theses and Dissertations (Comprehensive)

ABSTRACT This research investigates religious and spiritual struggles among Nigerian, immigrant, Christian women in Waterloo Region. Twelve women settled in the region for six months to 11 years participated in the study. Qualitative methodology, narrative inquiry, and a storytelling paradigm informed the research. Semi-structured, in-depth interview questions were used to explore the experiences of religious and spiritual struggles. A meticulous review identifies a scarcity of literature on religious and spiritual struggles in the context of immigration. However, immigration challenges such as language barriers, precarious employment, and mental health issues are well-documented (Bauder, 2012; Beiser & Hou, 2016; Berry et al., …

Investigating The Impact Of Winter Exposure To Natural Environments On Perceived Health And Well-Being Using Geographic Ecological Momentary Assessment: A Case Study At Arrowhead Provincial Park, Faith M. Laing

Theses and Dissertations (Comprehensive)

This study examined how winter exposure to specific natural environments influenced perceived health and well-being outcomes using Geographic Ecological Momentary Assessment (GEMA) in Arrowhead Provincial Park. Studies performed in the wintertime are limited, as is our understanding of how specific park features and/or activities impact health and well-being. To address this, GEMA was used with a video component to capture participants’ real-time experience and emotional responses in specific park locations defined by polygon boundaries. Two surveys were administered through participants mobile devices, one being an in-situ engagement survey triggered by entering a bounded location, which included a video and …

Science Fiction Cinema And The Technological Sublime: Spectacle And The Infinite From Early Cinema To Digital, David Jackson Dr.

Theses and Dissertations (Comprehensive)

This dissertation examines how science fiction cinema constructs and reimagines the technological sublime in the twentieth century: the experience of awe, terror, and admiration provoked by human-made power and scale. Drawing on the philosophical foundations of the sublime in Edmund Burke and Immanuel Kant and extending through Leo Marx’s and David E. Nye’s theorization of the technological sublime, I propose an aesthetic mode in which representation inflected with affect translates technological spectacle into examinations of humanity’s role and agency in the face of overwhelming technologized worlds and in some cases, even the universe itself.

Through three distinct historical periods …

Eeg Correlates Of Tactile Synchrony, Devon K. R. Gallagher

Theses and Dissertations (Comprehensive)

New research on the tactile system has suggested that cortical representations of body parts are not fixed, as previously thought, and are instead dynamically maintained through constant sensorimotor information and feedback. Within the somatosensory cortex (S1), the capacity for both permanent and temporary changes have been the topic of ongoing research. The current study aimed to corroborate whether 24 hours of a finger adhesion manipulation is sufficient to elicit behavioural and electrophysiological correlates from cortical reorganization of digit representations in S1, using a behavioural paradigm outlined by Kolasinski et al. (2016). Through electroencephalography (EEG) recording during a tactile discrimination task, …

Acid-Base Regulation Mechanisms In The West African Lungfish Protopterus Annectens: An Investigation Into The Role Of The Sodium Proton Exchanger (Nhe), Victor H. Q. Pham-Ho Msc

Theses and Dissertations (Comprehensive)

The lungfish possesses a primitive lung and underdeveloped gills, making use of bimodal respiration. Like other freshwater fishes they must regulate ion- and acid-base equilibrium through active ion uptake (driven by pumps and ion transporters), albeit with challenges due to their underdeveloped gills. My thesis aimed to elucidate the role of the sodium proton exchangers (NHE), encoded by the genes slc9a1/nhe1, slc9a2/nhe2 and slc9a3/nhe3, which are hypothesized to contribute towards acid-base regulation. Pharmacologically, amiloride, a sodium-transport inhibitor, and 5-(N-Ethyl N-isopropyl)-Amiloride (EIPA), an NHE specific inhibitor, affected whole-animal titratable acidity and ammonia fluxes, supporting a physiological function of the NHE. Next, …

Solving Two-Sided Linear And Quadratic Quaternionic Equations, Bowen Liu

Theses and Dissertations (Comprehensive)

This thesis aims to study two-sided quaternionic equations and develop efficient methods for solving them.

By introducing the notion of the discriminant space, we completely characterized the solutions of general two-sided linear quaternionic equations and established analogous results for systems of equations and equations involving conjugation.

We then addressed the nonlinear case x² = axb by deriving explicit formula solutions. The main method is to introduce an efficient way of eliminating the number of real parameters from a, b. By using the Lefschetz fixed point theorem, we can show that any binomial polynomial quaternionic equation has a non-zero solution, …

Youth Perspectives On Developing A Sustainable Food Future In Sambaa K’E Nwt., Danielle Elizabeth Bayne Ms

Theses and Dissertations (Comprehensive)

Food systems in Northern Indigenous communities are shaped by complex and interconnected social, environmental, economic, and political forces that determine how food is accessed, practiced, and governed. Indigenous food systems are deeply rooted in Land-based practices and relationships that support cultural continuity and intergenerational knowledge transfer. However, these systems have been profoundly disrupted by ongoing colonial structures that restrict access to and devalue Indigenous Knowledge and alter harvesting practices. Climate change further intensifies challenges related to traditional food access by altering wildlife behaviour, shifting seasonal patterns and reducing the safety and reliability of traditional harvesting territories. In response, many Northern …

Investigation Of Mercury Bioaccessibility In Subsistence Fishes From The Canadian Subarctic, Kiran Mateo Sharma Mr

Theses and Dissertations (Comprehensive)

Fish consumption is the primary pathway for human exposure to methylmercury (MeHg), a global contaminant of concern known to cause adverse health effects. Fort Albany First Nation, a remote Indigenous community in northern Ontario that relies on fish for both subsistence and cultural practices, has expressed concern regarding the safety of local fish consumption. Community members and leaders have communicated several priorities for scientific research that are the foundation of this thesis. Specifically, consumers of wild-caught fish have asked how traditional cooking methods may affect mercury concentrations in fish, and how mercury concentrations in little-studied organs, such as liver and …

Sex Differences In The Use Of Cognitive Strategies In Brown-Headed Cowbirds (Molothrus Ater), Nicole E. Robinson Ms.

Theses and Dissertations (Comprehensive)

Cognition is widely believed to be adaptive, yet few studies directly show that variation in cognitive performance is related to fitness. Brown-headed cowbirds (Molothrus ater) provide a powerful system for addressing this gap because brood parasitism creates strikingly different reproductive problems for females and males. Females face the spatial demands of nest-prospecting, whereas males face social and competitive demands associated with access to mates. Across five experiments, cowbirds were tested on an outdoor foraging task designed as an analogue of nest prospecting, with manipulations of retention interval, cue conflict, and breeding condition, followed by observations of reproductive behaviour. …

Analysis Of Alternative Oxidase In Non-Angiosperm Plants, Anissa M. Francis

Theses and Dissertations (Comprehensive)

Alternative oxidase (AOX) is a mitochondrial terminal oxidase that provides an alternative pathway for electron transport, allowing plants to maintain respiratory flexibility under environmental stress conditions. While AOX has been extensively studied in angiosperms (flowering plants), little is known about its distribution and conservation in non-angiosperms. Based on gaps identified in the literature, this thesis investigated the distribution of AOX across non-angiosperm plant lineages. Although AOX is present in many green algae and is therefore considered to be an ancient protein that originated before the existence of non-angiosperm plants, it remains unclear whether the protein is uniformly distributed across these …

Lidar-Based Framework For Detecting Suspicious Human Activities, Ahd Aljumah, Charalampos Antoniadis, Hakim Ghazzai, Nawfal Guefrachi, Ahmad Alsharoa, Gianluca Setti

Electrical and Computer Engineering Faculty Research & Creative Works

This study explores the development of Human Activity Recognition (HAR) systems capable of identifying suspicious activities to enhance security in public spaces. We propose an innovative solution that integrates LiDAR sensors with deep learning technologies. Our method employs advanced models operating on LiDAR point cloud, PV-RCNN for human detection, and LidarGait++ for classifying activities into categories such as standing or walking (non-suspicious) and sneaking or fighting (suspicious). Due to the scarcity of suitable real-world datasets for training such systems, we utilize a 3D simulation tool, Blender, to create realistic environments and generate labeled point cloud data. This synthetic dataset allows …

What Motivates Occupational Therapy Students To Self-Study Anatomy, Samantha Williams, Athena Kirou-Mauro, Kelly Hennessy, Lexi Davidson, Emily S. Ho

Journal of Occupational Therapy Education

Informed by self-determination theory, this study examined the motivations and preferred learning styles of entry-level occupational therapy students and explored how their perceived anatomy competency related to their academic performance. To investigate this, ninety-seven occupational therapy students completed a reflective assignment through which they set anatomy self-study learning goals. Self-study learning approaches were categorized, and the relationship between student perceived anatomy competency and academic outcomes (i.e., anatomy quizzes, term grades) was analyzed. When examining self-study learning approaches, students favored computer assisted instructional tools (n = 75, 77%) and integrated clinical application with their learning goals (n = 52, …

Moral Progress In Legal Doctrine, Philip Petrov

Faculty Scholarship

This article integrates the concept of moral progress – here, moral improvement in the thinking and behavior of individuals over time – into the study of legal doctrine. The article first presents a naturalistic account of what moral progress is and describes three of its most historically and analytically important forms: (1) moral circle expansion, (2) moral domain expansion, and (3) increasing sensitivity to proportionality. The article then analyzes three historical developments in U.S. tort law that qualify as instances of moral progress: (1) the partial demise of the “suicide rule” beginning around the 1980s (according to …