Laurentian University

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    3855 research outputs found

    Giigido (s/he speaks in Ojibwe): an architectural exploration of Ojibwe language learning in the Atikameksheng Anishnawbek First Nation

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    Acknowledging the endangered state of Indigenous Languages situated in the colonial narrative of Canada, this thesis investigates the capabilities of architecture as a tool to support existing language revitalization strategies. It presents a process of knowledge gathering, recording, and interpretation that identifies key concepts inherent to language and identity. Investigating topics through a lens of actions and processes, the body of knowledge is analyzed through the act of making. As a result of first-hand material explorations and community consultations, this thesis proposes an architectural typology unique to the Atikameksheng Anishnawbek First Nation community. The proposed typology represents a spatial interpretation of the Ojibwe language, inherently criticizing the continuously imposed Western concept of education and imposed architectural designs. As a kit of parts, the proposal is fully adaptable to meet the community’s needs and is intended to complement their residential expansion and language revitalization plans.Master of Architecture (M.Arch

    Geochemistry of gold from Ontario gold deposits

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    Gold is one of the most crucial metals in human history, and still, few investigations have directly studied gold composition to understand gold systems. Ontario (Canada) provides a natural example of gold systems because of the abundance and distribution of world class gold deposits. The present study constrains the geochemical signature of free gold using SEM-EDS, EPMA and LA-ICP-MS to characterize 242 samples from 71 gold deposits and occurrences. Generally, Ag, Cu, and Hg occur over 100 ppm, with Sb, Pd, Cd, and Bi typically as trace elements between 0.001 and 100 ppm. The geochemical signature of gold varies at the craton scale but is consistent at the camp scale. These spatially distinct trace element signatures are independent of local host rock and deposit types, which have implications regarding the controls on ore-forming mechanisms and reflect district-scale variations in the primary and secondary composition of gold. This elemental signature has important practical applications for industry; for example, in using elemental vectors that reflect local gold composition and/or in metallurgical processing.Master of Science (MSc) in Geolog

    Detecting fake accounts on Instagram using machine learning and hybrid optimization algorithms

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    In this thesis, we propose a hybrid method for detecting fake accounts on Instagram by using the Binary Grey Wolf Optimization Algorithm (BGWO) and Particle Swarm Optimization (PSO). By combining these two algorithms, we aim to leverage their complementary strengths and enhance the overall optimization performance. We evaluate the proposed hybrid method by using four classifiers, Support Vector Machine (SVM), Logistic Regression (LR), K-Nearest Neighbor (KNN), and Artificial Neural Network (ANN). The dataset used for the experiments contains 65329 Instagram accounts. We extract features from each account, including profile information, posting behavior, and engagement metrics by feature selection using PSO. The results show that the Hybrid optimization method (BGWOPSO) significantly outperformed both Binary Grey Wolf Optimization (BGWO) and Particle Swarm Optimization (PSO) methods when using several performance measures including accuracy, precision, recall, and AUC selecting the best optimal features.Master of Science (MSc) in Computational Science

    North American Society for Sport History (NASSH) Proceedings of the 51st Annual Convention

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    North American Society for Sport History Proceedings Of the 51st Annual Convention Washington, DC Hyatt Regency & Virtual via HopIn May 26-29, 202

    Providing social work support for women experiencing perinatal mental health challenges

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    In the perinatal period, a woman’s likelihood to experience the onset of mental health concerns, and the relapse of previous mental health conditions, are at the highest point in her life (Canadian Perinatal Mental Health Collaborative, 2021). It is estimated that approximately 1 in 4 Canadian women will experience a perinatal mental health challenge in their lifetime (Gheorghe et al., 2021). Considering that many symptoms of perinatal mental health concerns are not reported due to stigma, fear of child apprehension, and inadequacies of and oppression in services (Wisner et al., 2013; Nieves, 2015), researchers believe the actual occurrence is double (Carberg, 2022). Understanding women’s experiences of perinatal mental health experiences, and how social workers can best support them, was the primary intention motivating my 450-hour advanced practicum at Maternal Health Niagara (MHN). MHN is a private practice focused on providing therapeutic care to individuals in the perinatal period and beyond, with specific work including fertility, pregnancy and infant loss, trauma, and more. In this report, I discuss and reflect upon my ability to reach my learning goals, answer questions from the onset, and support women in this population, while applying anti-oppressive and critical feminist social justice frameworks. Within this paper, I work to contextualize and problematize the external oppressive barriers within systems women have to navigate and illuminate a shift from society blaming women to supporting and empowering them. I present my learnings derived from the literature, my practicum experience at MHN, and personal reflections

    Design and development of a Mars-Rover model as a pedagogical tool for pupils in elementary school

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    This paper is about making a simulated Mars-rover model robot for pupils’ education from scratch, The robot is controlled based on the Arduino platform. The robot building starts from the construction of the chassis. Six wheels and independent drives are installed. A 4-degree-of- freedom robotic arm and 3D-printed gripper are installed. The pixy2 camera, distance sensor and other sensors are installed. By programming this robot, when one object is captured by the camera, the robot will reach the object through 6 wheels, put down the mechanical arm, pick up the object, and transport it to the designated location. It is a comprehensive project with multiple components working together to complete the goal. The robot can also be manually controlled via Bluetooth. It is an educational robot which will be placed in the science museum and is suitable for showing and introducing knowledge to students

    The role of preexisting anisotropies in focusing deformation in an Archean intrusion-related Au deposit: a case study from the Upper Beaver Au-Cu deposit, Ontario, Canada

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    The ca. 2680 Ma Upper Beaver deposit is an Archean intrusion-related gold-copper deposit located in the southern Abitibi greenstone belt between Kirkland Lake and Larder Lake, Canada. Mineralization is centered on the intermediate Upper Beaver Intrusive Complex which was emplaced in the hanging wall of an extensional listric fault early during Timiskaming basin formation. During subsequent deformation events, alteration, preexisting planar anisotropies, and the orientation and composition of the ore zones enhanced strain partitioning, controlling the development of folds, boudins and fabrics in strained ore zones. Steeply-dipping, sericite-altered ore zones, oriented parallel to cross-stratal dikes, developed a continuous foliation surrounding boudinaged and recrystallized quartz-calcite-anhydrite veins, whereas strong, shallowly-dipping, stratiform, garnet-epidote-amphibole skarnoid ore zones developed a wavy, disjunctive cleavage and deformed mainly by folding. The Upper Beaver deposit can be used as a guide for interpreting the development of structures in similar but more complexly deformed deposits along major deformation zones

    Assessments of genetic and reproductive health in Canada’s endangered Oregon Spotted Frog (Rana pretiosa)

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    Zoological institutions are increasingly relied upon for ex situ management of species at risk, with conservation breeding and reintroduction programs providing both assurance against extinction and a reliable source of offspring to reinforce wild population sizes. Ex situ efforts face many challenges, however. One often overlooked challenge is balancing genetic priorities, like retaining genetic diversity and reducing inbreeding, with reproductive priorities, like mate compatibility and reliable breeding, both of which are required for a successful program. Like many amphibians, the Oregon Spotted Frog (Rana pretiosa) is highly threatened in its native habitat and ongoing conservation breeding and reintroduction programs are experiencing limited success; the genetic sustainability of these populations remains unassessed. In this study, I evaluated the genetic health of both zoo and wild populations of R. pretiosa in Canada and investigated some potential causes of the ongoing ex situ reproductive failures associated with egg binding. I found that zoos have maintained stable genetic metrics relative to their wild sources, but ongoing collections from wild populations should be reassessed due to low genetic diversity available therein. No clear causes of egg binding were elucidated but I found older female frogs (> 3 years old) who became egg bound generally had a higher body mass than conspecifics, while body mass did not differ in females becoming egg bound in their first breeding season (2-3 years old). This suggests frogs should be monitored for egg binding and changes in body condition differently depending on their age. Overall, there were no significant differences in genetic or reproductive health across the three zoo conservation breeding populations, but scaled mass index was significantly lower in the zoo with larger holding tanks and less genetic management: a reminder of the importance of husbandry and environment in conservation breeding program outcomes. The costs and benefits of strict genetic management vs. a more communal breeding approach should be carefully considered in light of these results. Along with more cohesion, communication is required between all involved institutions to have an effective impact on the conservation of Oregon Spotted Frogs in Canada, the recommendations discussed here have applicability to amphibian ex situ programs worldwide.Master of Science (MSc) in Biolog

    Movement legacy: a bioethical and epigenetically grounded architectural framework for healthy lifestyle change

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    New research in neuroscience, environmental psychology, and medicine have revealed factors in the built environment that improve health, however, these are not yet widely understood or adopted by the design community. A novel approach that better leverages the scientific literature to inform design is required. Recent discoveries in epigenetics reveal the immense impact our environment has on intergenerational human health through the process of epigenomic editing and the resultant genetic expression. This thesis argues that design and health are inextricably linked to bioethical questions that require deeper exploration and ought to compel designers to reframe their role and responsibility in community health. A new theoretical framework is developed that aligns design elements at multiple scales with evidence-based principles, which elicit positive health outcomes through increased physical activity prevalence. Informed by the framework, a network of design interventions for Sudbury, Ontario, demonstrates how the built environment can foster healthy lifestyle change.Master of Architecture (M.Arch

    Investigation of the effect of acute radiation on enteroendocrine L-cell health and function

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    Radiation enteropathy is a commonly observed syndrome induced by abdominal and pelvic radiation therapy characterized by acute and/or chronic pain and loss of proper gut function. Glucagon-like peptide-2 (GLP-2), an important peptide hormone in the enhancement of proper intestinal function, proliferation of intestinal tissue and inhibition of enterocyte apoptosis, is a known treatment option of malabsorption disorders of the intestines. Recent developments have demonstrated that exogenous GLP-2 treatments attenuate and facilitate recovery of radiation- induced gut injury. This study aims to elucidate the effects of radiation therapy on endogenous GLP-2 secretion from intestinal L-cells as this is poorly understood. In mice, L-cell counts remained unchanged 48 hours post-irradiation but total circulating GLP-2 was increased. Irradiation of in-vitro L-cell models demonstrated a trend of increased hormone secretion at intermediate doses and significant increase in cell viability and mitochondrial activity. The stimulatory effect of radiation on L-cell should be investigated in future studies

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