Graduate Theses & Dissertations


Temporal variation of dissolved organic matter and diffusive gradient in thin films-labile mercury in the Quesnel river, BC, and the Goose Creek tributary of Churchill river, MB
This study examined dissolved organic matter (DOM) and labile Mercury (from diffusive gradient in thin films (DGT)) in the Quesnel river, British and the Goose creek tributary of the Churchill river, Manitoba. DOM properties were measured with optical measurements of absorption coefficient (a254), spectral slopes (S275-295, SR) and fluorescence indices (HIX, BIX, FI). The DOC proxy measurements (a254) were almost 10 times higher at the Churchill site (Mean a254 116.77 cm-1) compared with the Quesnel river site (Mean a254 12.06 cm-1) during the study periods. While DGT labile Hg concentrations at the Quesnel site (2.17 to 98.97ppt) were almost 10 times more than the levels reported at the Churchill site (0.03 to 9.06 ppt). Fluorescence indices and the rise of labile Hg concentrations in spring indicated mostly terrestrial sources of DOM at both the sites. Spectral slopes and fluorescence indices substantiated that Churchill site had high molecular weight, complex and more humic DOM compared with Quesnel. DOM at both the sites was prone to temporal variation and affected by environmental conditions. Correlation between DGT labile-Hg and DOM parameters suggested that DGT collected Hg-organic complexes along with inorganic labile-Hg complexes. Author Keywords: Churchill, Diffusive gradient in thin films, Dissolved organic matter, Labile Hg, Mercury, Quesnel
Class Struggle and Solidarity in Neo-Liberal Times
The lengthy and raucous 1986 Gainers meatpacking plant strike in Edmonton, Alberta was one of the most important events in recent Alberta labour history. In the midst of the economic crisis of the 1980s and the rise of neo-liberal ideas, the strike marked a backlash by both the labour movement and ordinary citizens against attacks on workers and unions. Characterized by widely covered picket line violence, repressive police and court actions, and government unresponsiveness, the strike generated massive solidarity within and beyond the labour movement. This solidarity originated in a rejection of the neo-liberal new reality of Alberta typified by high unemployment, anti-union laws and practices, and lack of government welfare support, and it generated a provincial change the law campaign, national boycott, and rising class consciousness. The working class mobilization during the Gainers strike was a watershed for the Alberta labour movement. Author Keywords: Alberta Federation of Labour, Gainers strike, neo-liberalism, solidarity, working class
Distribution of Cluster Fly Species (Pollenia, spp. Diptera
This thesis looks at the genus Pollenia: historically where they were first introduced into Canada and spatially, where they are found now. This project involved me identifying 2211 files, sorted from the 3 years of field specimens obtained in 2011, 2012, 2013. P. pediculata was the most abundant and widespread, yielding 1272 specimens out of 2211, and it was found in all provinces sampled. The previous understanding of all Pollenia specimens as being P. rudis appears to be incorrect both in terms of actual number of species – which is known – and how prevalent it is. P. rudis comprised only 20% of the entire collection. The least common was P. griseotomentosa, occurring as 45 of 2211, or 2%. I found new eight first provincial records: four species in Alberta (P. angustigena, P. labialis, P. rudis, P. vagabunda) , one species for Saskatchewan (P. pediculata), two for New Brunswick (P. griseotomentosa, P. labialis), and one for Nova Scotia (P. labialis). P. labialis was new to three provinces, the other species to one province each. Author Keywords: Calliphoridae, Canada, Cluster Fly, Distribution, Pollenia, Provincial Records
Effect of Nitrosative Stress on Heme Protein Expression and Localization in Giardia Intestinalis
The parasitic protist Giardia intestinalis has five heme proteins: a flavohemoglobin and several isotypes of cytochrome b5. While the flavohemoglobin has a role in counteracting nitric oxide, the functions of the cytochromes (gCYTb5s) are unknown. In this study, the protein level and cellular localization of three gCYTB5 isotypes (gCYTb5-I, II and III) and flavohemoglobin were examined in Giardia trophozoites exposed to three nitrosative stressors at two different concentrations: nitrite (20 mM, 0.5 mM); GSNO (2 mM, 0.25 mM) and DETA-NONOate (2 mM, 0.05 mM). An increase in protein levels was observed for gCYTb5-II with all stressors at both concentrations. However, the effects of these nitrosative stressors on gCYTb5-I and III were inconclusive due to the variation among the replicates and the poor detection of gCYTb5- III on western blots. The protein level of the flavohemoglobin also increased in response to the three stressors at the low concentrations of stressors that were tested. Only the cellular localization of gCYTb5-I changed in response to nitrosative stress, where it moved from the nucleolus to the nucleus and cytoplasm. This response was extremely sensitive and occurred at the lower doses of the three stressors, suggesting that gCYTb5-I may be involved in a nucleolar- based stress response. Author Keywords:
Marital Satisfaction Throughout the Journey of Weight-Loss Surgery
A mixed-methods’ approach was designed to explore the marital impacts following weight-loss surgery (WLS). In Phase 1, ten individual interviews with spouses of five couples were conducted; two of the couples had the wives preparing for WLS, two of the couples consisted of wives who had WLS, and one couple had both received the surgery. Interviews were transcribed and analyzed using a combination of interpretive phenomenological and grounded theory techniques. Findings demonstrated that WLS does have impacts on marriage regardless of where couples are in their journey. All couples discussed food as a possible source of conflict in their relationship. Interviews also reveled that self-esteem is a major factor contributing to their relationship and support is necessary throughout. In Phase 2 an online survey was developed to quantitatively explore the important constructs deemed important from the participants in Phase 1. Relationships between relationship satisfaction, sexual conflict, self-esteem, depression and body image were examined in 54 participants. Results demonstrate that higher levels of support and self-esteem and lower sexual conflict relate to a more satisfactory relationship in individuals post- WLS. Author Keywords: marital satsifaction, mixed-methods, qualitative, relationship satisfaction, weight-loss, Weight-loss surgery
Religion, Wilberforce’s Evangelicalism, and the Memoirs of Common British Soldiers, 1811-1863
This thesis examines low-ranking British soldiers’ memoirs in the nineteenth century to determine the extent to which they identified with Christianity and how their expressions of faith differed from each other. Using twelve narratives published between 1811–1863, it finds that all of these soldiers identified themselves with Protestant Christianity and, more importantly, considered irreligion an evil which could not be justified by any decent British citizen. Furthermore, it argues that soldiers’ identity construction was largely determined by the degree of depth of their religious understanding. It uses the work of William Wilberforce to contextualize these soldiers’ expressions of faith and demonstrates how military writing can be more fully understood as representing a spectrum between nominal Christianity and real or true Christianity. This project strives to demonstrate that the religiosity of eighteenth- and nineteenth-century Britain has a significant impact upon our understanding of their time. Author Keywords: Britain, Christianity, memoirs, Military, soldiers, William Wilberforce
Help-Seeking Behaviours Of Individuals With Workplace Mental Health Injuries
The present study investigated the lived-experiences of individuals with workplace mental health injuries to better understand the thoughts, emotions, and behavioural processes that promote or inhibit help-seeking. This research investigated the interactions and relationships with relevant stakeholders and how they influence help-seeking. Qualitative methodology was employed by conducting semi-structured interviews with individuals (n=12) from various occupational classes who had experienced a workplace mental health injury. Interpretative phenomenological analysis and thematic content analysis were combined to analyze the data. Three main themes emerged: 1) self-preservation through injury concealment or distancing from workplace stressors 2) fatigue relating to complex help-seeking pathways, accumulation of stressors, and decreased ability in treatment decision-making, and 3) (mis)trust in the people and processes involved. These findings may help inform the mechanisms behind help-seeking for workplace mental health injuries, which may have implications for future research, policy development, and workplace processes to better facilitate a path to help. Author Keywords: help-seeking, mental health concealment, self-preservation, trust, workplace mental health, WSIB
'Land Displacement and Coping Strategies'
This thesis explores the social history of the Marange people of eastern Zimbabwe from the 1960s to 2015. It uses historical episodes like the recurring droughts, the 1970s war of independence, the ‘crisis in Zimbabwe,’ that has been traced from the late - 1990s, and the diamond mining story to demonstrate how the inhabitants interacted with their environment. It argues that the relocation project that began in 2010 had a severely disruptive impact on the families relocated to the relocation area - ARDA Transau - making the case that the Marange relocation project was a ‘development disaster.’ While the provision of accommodation had a notable positive impact on the majority of the displaced households, family needs were not always met. For instance, large families such as those of the dominant polygamous followers of the African Apostolic Church of Johanne Marange were not provided with adequate housing. Also, the livelihoods of the displaced households were shattered by the relocation exercise. In their efforts to creatively adapt to these new constraints, the displacees had diverse coping strategies like selling firewood, illegally extending space for crop cultivation, artisanal mining, vending and begging for food to eke out a living. Author Keywords: Coping Strategies, Crisis in Zimbabwe, Development, Displacement, Land, Livelihoods
Study of Aerosols for use in Water Remediation of Pharmaceutical Pollutants
In this thesis, aerosolization was studied as a possible means of water remediation for several environmentally relevant pharmaceutical pollutants, known for their persistence in wastewater effluent and potable water sources. Seven different pharmaceutical compounds and a well-known plasticizer were all shown to decrease considerably in concentration in aerosol that was produced and subsequently collected within a short time span. Strong evidence is presented that an enhanced rate of partitioning into the gas phase at the air-water interface of water droplets exists for every compound tested relative to that occurring in bulk solution. UV photolysis in aerosols was also explored and shown for sulfamethoxazole to be at least an order of magnitude faster in aerosols then in bulk solution. The implications towards both the environmental fate, and removal of these compounds from water sources is discussed. Author Keywords: Aerosols, Air-water partitioning, Pharmaceuticals, Photolysis, Sulfamethoxazole
Elite Canadian Print Media Construction of the Cuban Revolution, 1956-1962
This study examines the elite national print media reaction to, and coverage of, the Cuban Revolution, between 1956 and 1962. It finds that media, equally alienated by both Fidel Castro and the United States, progressively pursued an independent narrative predicated on an homage to Cuban sovereignty. Specifically, media uniformly adopted veteran New York Times' reporter Herbert L. Matthews' conflation between Cuban postcolonial independence and the Revolution following his exclusive interview with Fidel Castro in February 1957. Media maintained it until 1962 as it remained the only consistent, defensible theme amid Castro's apparent failure to meet expectations and the United States' cautious indifference to a revolution in kind and abject disregard for Cuban sovereignty. Research is based on an exhaustive review of eleven carefully selected elite broadsheets and three national magazines. Overall, this study offers an important counterpoint to the broader body of Canada-Cuba-U.S. postwar historiography that almost exclusively addresses foreign policy. Author Keywords: Canada-Cuba-U.S. relations, Canadian print media, Cuban Revolution, Fidel Castro, Herbert L. Matthews, journalism
Stop Making Sense
ABSTRACT There is a growing number of juvenile novels and picture books that mean to educate the reader about synaesthesia. The synaesthete in these texts for young readers desires to be a social agent, yet sh/e also considers synaesthesia to be a healing power and a deeply personal psychedelic form of escapism; I argue that the synaesthete in these texts `uses' their synaesthesia to dissipate emotional trauma caused by pubescent uncertainty and social isolation. In this thesis, I propose that YA and Children's texts that feature synaesthesia generally reinforce the discursive constraints of normative perception, and they also promulgate the assumption that synaesthesia is an extraordinary form of cognition instead of a legitimate subject position. Author Keywords: Authenticity, Liminality, Repesentation, Synaesthesia, Synesthesia, Zizek
An Ethical Analysis of Bell's Targeted Ad Prorgram
Online behavioural advertising (OBA) is an advertising technique which relies on collected customer information and online activity to serve people with more relevant ads. On November 16th, 2013, Bell Canada launched their first OBA program via Bell Mobility: the Bell Targeted Ads Program, or BTAP. My thesis provides an ethical analysis of BTAP and shows that Bell undermined and violated customer privacy, stifled customer autonomy, and harmed customer identity. Relevant moral problems include typification, a disrespecting of customer autonomy, and identity commodification. I show that BTAP was unethical by grounding my arguments within the moral framework of Information Ethics (IE). IE is an ethical system which focuses on the role of information in the ethical dilemmas. IE also justifies the self-constitutive theory of privacy (SCP) which argues that our information and privacy are entangled with our identities. This gives us strong reason to defend our privacy/identity within BTAP. After making several arguments which demonstrate that BTAP was unethical, I will then turn my attention to showing how it is possible to rectify and mitigate many of BTAP’s ethical problems by installing a two-stage opt-in (TSOI) which provides customers with a greater deal of autonomy, and the ability to remove themselves from BTAP. Author Keywords: Bell Canada, Ethics, Identity, Online Behavioural Advertising, Privacy, Targeted Advertising


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