Year: 2018, 2018
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Levasseur, Patrick, Thesis advisor (ths): Watmough, Shaun, Degree committee member (dgc): Aherne, Julian, Degree committee member (dgc): Eimers, Catherine, Degree committee member (dgc): Whitfield, Colin, Degree granting institution (dgg): Trent University Abstract: <p>In 2012, the Rio Tinto aluminum smelter in Kitimat, British Columbia increased sulphur dioxide (SO2) emissions from 27 to 42 tonnes/day. An initial study was conducted to investigate the effect of the increased sulphur (S) deposition on forest soils. A key uncertainty of the initial study was mineral surface area estimations that were applied to critical load calculations. The current… more Year: 2018, 2018
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Microalgae are a promising source of valuable compounds relevant to biofuels, biomaterials, nutraceuticals as well as animal and human nutriment. Unfortunately, low cell density and slow growth result in reduced economic feasibility. Heterotrophic cell culturing using an organic carbon source in lieu of light has proven to be an effective alternative to photobioreactors; however, further… more Year: 2018, 2018
Member of: Trent University Graduate Thesis Collection
Abstract: <p>This thesis explores practitioner perceptions of operational and structural experiences of non-profit organizations (NPO) and platform projects (PP) to develop an understanding of how a shared platform governance model can build resiliency and sustainability in non-profit organizations. The objectives of this research are to 1) develop an understanding of NPO and PP operational and… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Socio-ecological systems are inherently complex and marine mammals are fundamentally challenging to study. In the Arctic, marine mammals occupy a central ecological role, as nutrient cyclers and as a source of food and culture for Indigenous peoples. Inuit have developed a rich knowledge system, which has not been fully actualized in application in most Arctic research. Considering the… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Metal binding to dissolved organic matter (DOM) determines metal speciation and strongly influences potential toxicity. The understanding of this process, however, is challenged by DOM source variation, which is not always considered by most existing metal speciation models. Source determines the molecular structure of DOM, including metal binding functional groups. This study has… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Within this project, I have identified a new pattern of instruction, surrounding women's bodies and their movement within the public space, present within didactic literature produced during the reign of Charles VI of France (1368-1422). This pattern, present in the texts Le livre du Chevalier de la Tour Landry pour l'instruction de ses filles, Le Menagier de Paris, Le livre… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The amitochondrial protozoan, Giardia intestinalis, encodes four members of the cytochrome b5 (CYTB5) family of heme proteins of unknown function. While homology models can predict the likely fold of these proteins, supporting experimental evidence is lacking. The small size of the cytochromes (~16 kDa) makes them attractive targets for structural analysis by Electron Paramagnetic… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The parasitic protist Giardia intestinalis lacks most heme proteins yet encodes a flavohemoglobin (gFlHb) that converts nitric oxide to nitrate and likely protects the cell from nitrosative stress. In this work an antibody raised against gFlHb was used to examine both changes in gFlHb expression levels and intracellular localization in Giardia in response to nitrosative stress. Giardia… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>This study focused on detecting 22 target anti-estrogenic and anti-androgenic compounds in surface waters influenced by both discharges of municipal wastewater and agricultural runoff in Canada and Argentina. Polar organic chemical integrative samplers (POCIS) were used to monitor the target compounds in surface waters. The removals of the target compounds in a municipal wastewater… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Chemical cues are used commonly by prey to identify predation risk in aquatic environments. Previous work has indicated that negatively-charged ions of m/z 501 are possibly a kairomone that induces anti-predator responses in tadpoles. This thesis found that this ion species: (i) is produced by injured tadpoles; (ii) exhibits increased spectral intensity with higher tadpole biomass; and (… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>This thesis is an attempt to provide a critical history of the Communist Party of Canada (CPC) during the Popular Front era, roughly November 1935 to September 1939. This study contains a detailed examination of the various stages of the Popular Front in Canada (the united front, the height of the Popular Front, and the Democratic front), with special attention paid to the CPC's… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>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… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The present thesis entails a qualitative investigation of the unique notion to transition media change from the current paper-based system to the potential use of information technology innovation for communication between health care providers and employers during return to work. Stakeholder perspectives on relevant communication phenomena were gathered from workers, employers, and… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Arctic Char (Salvelinus alpinus (L.)) have been, and remain, an important</p><p>subsistence resource for the Inuvialuit, the Inuit of the western Canadian Arctic. The effects</p><p>of climate variability and change (CVC) in this region have been noticeably increasing over</p><p>the past three decades. There are concerns as to how CVC will affect Arctic… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Children of incarcerated parents are an understudied at-risk population. However, this thesis was designed to advance our understanding of the effects of parental incarceration and factors that may influence the impact. Using quantitative methods, possible moderating roles of gender, number of incarcerated parents, and contact frequency on the associations between attachment… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The potential release of nanoparticles into aquatic environments is raising global concerns. As antimicrobials, silver nanoparticles (AgNPs) are among the most prominent form in use. Despite this, their fate, long-term toxicity, and ecological relevance have yet to be investigated largely under natural settings with seasonality and environmental complexity. To better understand the… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The purpose of this thesis is to enhance forensic entomology applications through identifications and ecological research with samples collected in collaboration with the OPP and RCMP across Canada. For this, we focus on blow flies (Diptera: Calliphoridae) and present data collected from 2011-2013 from different terrestrial habitats to analyze morphology and species composition.… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Polar bears are generally described as solitary, but features of their life cycles and </p><p>habitats regularly necessitate interaction. Effective conspecific assessment, including accurate </p><p>recognition and discrimination, likely confers benefits, especially to females accompanied by </p><p>dependent young. Individuals in the Southern (SH) and… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>In our communities, we are continually challenged to reflect on effective responses to the people and events that put us at risk. This study is an examination of two distinctly different world-view responses: the colonial, dominant culture and the Indigenous world-view. The retributive understanding of the dominant culture applies assumptions about the nature of the world that are vested… more Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Early developmental stages of cold-adapted ectotherms such as brook trout </p><p>(Salvelinus fontinalis) are at risk of mortality with increasing water temperatures because </p><p>of their sensitivity to changes in their environment. I studied the mass and routine </p><p>metabolic rate (RMR) of wild-origin brook trout eggs, alevin and young fry reared… more
