Graduate Theses & Dissertations


ADHD Symptomatology Across Adulthood
Objective: To improve on several methodological issues and research gaps regarding current literature investigating the stability of ADHD symptomatology across adulthood and relationships between the two core ADHD symptom dimensions (i.e., inattention and hyperactivity-impulsivity) and multiple life outcomes in adults. Method: A large sample of postsecondary students were initially assessed for ADHD symptomatology using the Conners’ Adult ADHD Rating Scale (CAARS). Six years later, academic success was assessed using students’ official academic records (e.g., final GPAs and degree completion status), and fifteen years later, participants were re-assessed using the CAARS and several measures of life success (e.g., relationship satisfaction, career satisfaction, and stress levels). Results: Inattention and hyperactivity-impulsivity symptoms showed strong stability across the 15-year period. Additionally, greater inattention symptoms during emerging adulthood and early middle adulthood were consistently associated with poorer life success (e.g., lower GPAs, poorer relationship and career satisfaction), particularly for men. Associations for hyperactivity-impulsivity symptoms were less consistent. Conclusion: ADHD symptomatology can be conceptualized as a stable, dimensional trait across adulthood, with robust associations with measures of life success. Author Keywords: academic success, ADHD, adults, job satisfaction, relationship satisfaction, stability
From Cultural Barriers to Educational Breakthroughs
This study examines critical pedagogy as a novel approach to diversity, equity and inclusion (DEI) education at Peterborough Police Service (PPS). To begin, the present study examines hypermasculinity and isolationism as cultural traits in policing that serve as barriers to DEI education. Later, results of focus groups with PPS members that investigated negative and positive experiences with DEI training, barriers to meeting DEI education outcomes and, perceived goals of future DEI education at PPS are discussed. Drawing from findings from the literature review and focus groups, this thesis argues that critical pedagogy offers a useful framework to explore divisive subjects like systemic racism, power and privilege, colonialization, etc. and contributions of police in maintenance of the status quo. Raising the critical consciousness of PPS members by unveiling systems of domination may provide a starting point for enhancing police service to groups that are racialized and minoritized. Education of this kind may also involve a reconceptualization of the role of police as allies to marginalized communities. Author Keywords: Community, Critical Pedagogy, Diversity, Education, Police, Police Culture
Along the Path
This thesis is written in three parts and supported throughout by feminist critical pedagogical analysis and a narrative methodological approach. In Part I I lay a theoretical groundwork that weaves the Freirean roots of critical pedagogy with its more contemporary theories in application to K-12 schooling, and with feminist thinking, most notably Sara Ahmed whose work has moved me both as a human and a teacher. In Part II, I take a deep dive into autoethnography (Bochner, (2017), Ellis, 1999). In Part III, I offer a memoir of my experience as a classroom teacher over a nearly 20 year period. The story of my work as an activist elementary school teacher oscillates between phases of hope and despair around the potential for forwarding a broad range of social and ecological justice ends through teaching and learning in the Ontario public school system. Finally, in Part IV, I return to conceptual analysis to reflect on the key themes of my memoir including teacher burnout, teacher efficacy, teacher resilience, and the ways in which these interact with teacher learning communities, school cultures and the relationships that underpin the work of teachers and educators. Author Keywords: Activist, Autoethnography, Critical Pedagogy, Resilience, Social-Change, Teaching
Relationships between bird densities and distance to mines in Northern Canada
Increased mining activity in the Canadian Arctic has resulted in significant changes to the environment that may be influencing some tundra-nesting bird populations. In this thesis I examine the direct and indirect effects of mining on birds nesting in the Canadian Arctic. I first perform a literature review of the effects that mining in the Arctic has on northern environments and wildlife and outline several ways in which mines affect Arctic-breeding birds. By using the Program for Regional and International Shorebird Monitoring (PRISM) Arctic plot-based bird survey data from across the Canadian Arctic, collected from 1995 to 2018, I identify the effects of distance to mining operations on the occupancy patterns of Arctic-breeding bird species. Six species’ densities were significantly impacted by mine proximity (Canada/Cackling Goose, Long-tailed Duck, Long-tailed Jaeger, Pectoral Sandpiper, Savannah Sparrow, and Rock Ptarmigan) across five major mine sites. Each species has its own unique relationship to distance from mining activity. Author Keywords: Bird populations, Canadian Arctic, Mining, Mining activities, PRISM, Tundra-nesting birds
Agricultural Intensification at Cerro de Oro (Cañete Valley, Peru)
Stable carbon and nitrogen isotope analysis of 571 archaeobotanical samples was performed to assess agricultural practices at Cerro de Oro in the Cañete Valley, Peru, during the transition between the Early Intermediate Period and the Middle Horizon. This thesis presents a comprehensive range of δ13C and δ15N values for the major C3 and C4 plant resources at the site. No differences were found in the δ15N values of charred and desiccated maize cobs, suggesting that both types of plant remains can provide reliable δ15N measurements. Generally, the δ15N values of plants at the site were relatively high, with the exception of most of the legumes, suggesting that organic fertilizers were extensively used. Camelid dung and fish offal are the most likely fertilizers used at Cerro de Oro, but some very high δ15N values suggest that seabird guano may also have been used. Peanuts, a legume, had higher δ15N values than would be expected for legumes, suggesting that this plant may have been companion-planted alongside maize or other more heavily fertilizer crops. Cotton had the highest δ13C value among all of the C3 plants sampled from the site, suggesting that this crop grew in the driest conditions, possibly reflecting a deficit irrigation system. This study reveals how intensive and extensive agriculture supported the emergence and growth of Cerro de Oro, a monumental site of great regional importance. Author Keywords: Andean Archaeology, Carbon and Nitrogen Stable Isotope Analysis, Cerro de Oro, Early Intermediate Period and Middle Horizon, Intensive and Extensive Agriculture, Plants
Morphometric and Decorative Variability in Complete and Near-Complete Middle and Late Woodland Vessels from the Frontenac Axis
This thesis examines morphometric variability and decorative variability and complexityat the intervessel and intravessel levels in samples of complete and near-complete Middle and Late Woodland vessels. The purpose of this study is to determine how a better understanding of variability in Middle and LateWoodland period pottery can help interpret fragmentary assemblages and supplement minimum number of vessels estimates (MNV) and estimated vessel equivalents (EVE): two common methods of pottery quantification. This study also permitted the full characterization of the Charleston Lake and South Lake vessels with associated photographs. The results of this study indicate that sherd thickness and design can be used to confidently assign vessel fragments to single vessels, thereby improving minimum number of vessels estimates, and the process of measuring brokenness and completeness for estimated vessel equivalents. Three sherd thickness conversion indexes provide archaeologists with a way to relate non-diagnostic and non-fitting sherds to their original vessels by the measure of sherds in relation to rims or paired portions (eg. Rim and neck, neck and shoulder, body and shoulder, and body and base). With the use of the sherd thickness conversion indexes, an efficient method of MNV estimation is proposed. Author Keywords: estimated vessel equivalents, minimum number of vessels, morphometry, pottery quantification, variability, Woodland Period ceramics
Electrochemical versus Chemical Oxidation of Bulky Phenols
Phenolic compounds are used in industry, such as agriculture and biotechnology, and inevitably end up in our environment. These compounds may serve as a phenolic precursor to produce raw materials for a wide range of applications. Chemical oxidation has been the common synthetic pathway to oxidize phenols and related compounds. However, traditional chemical approaches suffer from use of harsh chemicals, waste generation, and lack of reaction selectivity. Electrochemical synthesis has emerged as an alternative method to mitigate common challenges associated with organic synthesis. Herein, electrochemical oxidation of 2,6-diphenylphenol (DPP) and 2,2-dihydroxybiphenol (DHBP) was carried out and compared to traditional chemical oxidation. Contrasted with chemical oxidation, cyclic voltammetry of DPP resulted in a range of products based on the specific potential ranges used, whereas chemical oxidation of DHBP yield a dark-coloured polymeric product. The electrooxidation and chemical oxidation of DPP and DHBP resulted in a solution colour change, indicative of the formation of new, but different products monitored by UV-vis, and characterized by nuclear magnetic spectroscopy (NMR), X-ray single crystal diffraction, IR spectroscopy, transmission electron microscopy (TEM), and gas chromatography-mass spectrometry (GC-MS). The data indicate that the synthetic outcomes are dependent on the synthetic methodology employed, and that electrooxidation and chemical oxidation can form products unique to the pathway utilized. Author Keywords: chemoselectivity, electrochemistry, phenols, radical, synthesis
Internationalized Crusade
The outbreak of the Spanish Civil War in July 1936 divided national public opinions throughout the West. One of the factors behind such split was religious beliefs. This was the case for the United States and Ireland where Francisco Franco’s rebels got significant public support. This work argues that both the Irish and American Catholic Church hierarchies and laity Catholics’ support of the Nationalists had dramatic effects domestically. This thesis expands previous scholarship on the Spanish Civil War by utilizing primary sources from both American and Irish archives to understand the intention, forms, and controversy of Irish and American Catholics’ support of the Nationalists. Author Keywords: Anti-clericalism, Catholicism, Clergy, De Valera, FDR, Spanish Civil War
Genetic Networks to Investigate Structure and Connectivity of Caribou at Multiple Spatial and Temporal Scales
Understanding genetic structure, connectivity, and movement of a species iscritical to management and conservation. Genetic network approaches allow the analysis of genetic information with flexibility and few prior assumptions. In chapter one, I tested the ability of individual-based genetic networks to detect fine-scale structure and connectivity in relation to sampling efforts. My findings revealed individual-based genetic networks can detect fine-scale genetic structure of caribou when using 15 highly variable microsatellite loci. Sampling levels less than 50% of the estimated population size resulted in highly disconnected networks which did not allow for accurate structure analysis; however community detection algorithms were robust in grouping closely related individuals despite low sampling. In chapter two, I used individual-based and population-based genetic networks to investigate structure, connectivity, and movement of caribou across a large study area in Western Canada. A community detection algorithm partitioned the population-based genetic network at multiple spatial scales which uncovered patterns of hierarchical genetic structure and highlighted patterns of gene flow. The hierarchical population structure results aligned with the known distribution of different caribou Designatable Units (DUs) and additional structure was found within each DU. Furthermore, individual-based networks that were constructed with a subset of samples from the Mackenzie Mountains region of the Northwest Territories revealed patterns of long-distance movement and high connectivity across the region. Author Keywords: Biological Conservation, Caribou, Community Detection, Connectivity, Genetic Networks, Structure
Effects of Agricultural Land Use Change on Nitrogen and Phosphorus in North Shore Lake Ontario Tributaries
Row crop agriculture and associated land use practices including tile drainage and conservation tillage have been cited as a probable cause of re-emerging eutrophication in the lower Great Lakes. In this thesis, I sought to quantify and evaluate the effect of agricultural land cover and land use changes on total phosphorus (TP) and nitrate-nitrogen (NO3-N) concentrations and export in north shore Lake Ontario tributaries. This included (a) a long-term data analyses at 12 large watersheds (47 to 278 km²) using historical land cover and water quality data (1971-2010), and (b) a space-for-time study examining 12 small sub-catchments (< 8 km²) with majority (> 50%) row crop, pasture, or forest cover. Concentrations of TP were greatest in urbanized watersheds and declined particularly during the first decades of the study period, while NO3-N concentrations were greatest and steadily increased in agricultural catchments with increasing row crop cover. The space-for-time approach revealed that TP concentrations were similar across agricultural land uses and that export was most dependent on runoff. Meanwhile, NO3-N concentrations and export were greatest in row crop catchments and were positively related to row crop area. These results suggest that increases in row crop cover and associated agricultural practices including increased nutrient amendments and tile drainage may be responsible for increased NO3-N concentrations and export in northern Lake Ontario tributaries. Author Keywords: agriculture, Lake Ontario, nitrogen, phosphorus, streams, Water quality
Marginalization and Alternative Education in Ontario
In Ontario, mainstream education often does not meet the individual learning needs of high school students who experience marginalization. Alternative school programs may offer these students greater support and flexibility in completing their high school diploma. While previous research on alternative education in Ontario is thorough, it is limited to the Greater Toronto Area (GTA). To address the lack of research within smaller communities, this project uses the experiences of alternative education students in the City of Peterborough to explore how alternative programs meet student needs. Using a narrative methodology, the project relies on interviews with six students who offer their stories of attending alternative education programs. Research findings suggest that alternative education programs offer a meaningful and effective way for students to complete high school. Participants emphasize the importance of positive relationships with teachers and staff, student-driven curriculum, paid co-operative credits, and material benefits. Author Keywords: Alternative Education, Critical Pedagogy, Marginalization, Narrative Inquiry, Ontario, Student Experiences
Community and conservation
Faced with the intersecting environmental crises of the 21st century, conservation organizations are searching for practices that produce better, more sustainable outcomes. However, they have often relied on forms of conservation which shore up rather than disrupt settler relationships to land in the form of fortress conservation and assumptions about the human-nature dualism. In this thesis, I examine a local land trust that intends to include community[-based] conservation into its conservation practices. In particular, I explore how the organization’s volunteers understand and construct the relationship between community and conservation, and the ways this might impact operations. Using a community-based research approach, interviews (n=17) were conducted. The findings indicate that the volunteers are demographically homogenous, leading to a homogenous, Western-science informed understanding of community[-based] conservation. This perspective views involvement of community as a direct trade-off with optimal ecological goals. As the volunteers wield uncommon power in organizational governance, difference in opinions toward missions or operations could lead to constraints on the organization. This study contributes to larger academic discourses on environmental volunteers, land trusts, and frames of conservation, and provides tangible recommendations to an organization attempting to include community[-based] conservation in its practices. Author Keywords: community-based conservation, environmental governance, environmental volunteers, frames of conservation, land trusts, power


Search Our Digital Collections


Enabled Filters

  • (-) ≠ Bell
  • (-) ≠ Cultural Studies

Filter Results


1973 - 2033
Specify date range: Show
Format: 2023/11/29