Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Orr, Amanda, Thesis advisor (ths): Stotesbury, Theresa, Thesis advisor (ths): Wilson, Paul, Degree committee member (dgc): Stotesbury, Theresa, Degree committee member (dgc): Wilson, Paul, Degree committee member (dgc): Stock, Naomi, Degree granting institution (dgg): Trent University Abstract: <p>Access to human blood for forensic research and training in bloodstain pattern analysis (BPA) can be difficult due to many ethical, safety and cost concerns. Mammalian blood alternatives can be sourced, especially from local and willing abattoirs, but some concerns remain, and the added difficulties of high variation and species-specific differences in cellular components pose other… more Full Text: The design of DNA-containing biomaterials for forensic science A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for Degree of Doctor of Philosophy in the Faculty of Arts and Science TRENT UNIVERSITY …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Objectives/purpose: This study examined the psychosocial health (including resilience, hope, social functioning, mental wellbeing, and stress) of childhood cancer patients attending a recreational oncology camp (ROC).Methods: Childhood cancer patients enrolled for ROC participated in a survey on the first (T1) and last (T2) day of camp, and 3 months post-camp (T3). This survey included… more Full Text: THE EFFECT OF ONCOLOGY CAMP ON THE PSYCHOSOCIAL HEALTH OF CHILDHOOD CANCER PATIENTS A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and Science …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Jermilova, Una, Thesis advisor (ths): Hintelmann, Holger, Thesis advisor (ths): Kirk, Jane L, Degree committee member (dgc): Hintelmann, Holger, Degree committee member (dgc): Kirk, Jane L, Degree committee member (dgc): Landis, Wayne, Degree committee member (dgc): Buell, Mary-Claire, Degree granting institution (dgg): Trent University Abstract: <p>A significant portion (15-20%) of mercury (Hg) in the Arctic Ocean is believed to originate from Arctic rivers, such as the Mackenzie River watershed in the NWT. Recent (2005- 2020) Hg monitoring data of freshwater and fish tissue and environmental model outputs were compiled and used to develop a Bayesian Network Relative Risk model (BN-RRM), a probabilistic model capable of analyzing… more Full Text: BAYESIAN NETWORK MODEL OF MERCURY EXPOSURE TO AQUATIC ECOSYSTEMS OF THE MACKENZIE WATERSHED A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Mineral feedstocks, including alkaline mine wastes, can sequester CO2 as a dissolved phase (e.g., HCO3-) or a solid carbonate via enhanced rock weathering (ERW). For this thesis, the release of easily accessible Ca and Mg from non-carbonate sources was determined for kimberlite residues from several diamond mines and commonly proposed ERW rock types, including wollastonite and olivine.… more Full Text: PREDICTING AND MONITORING DRAINAGE CHEMISTRY DURING MINERAL WEATHERING FOR CO2 SEQUESTRATION A thesis submitted to Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and …
Year: 2023, 2023
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): Sager, Eric, Degree committee member (dgc): Emilson, Erik, Degree granting institution (dgg): Trent University Abstract: <p>Mining and smelting degraded landscapes are characterised by heavily eroded soils that are acidic, contaminated with toxic metals, and depleted of essential nutrients. Regreening degraded landscapes has been proposed to support global carbon (C) mitigation measures and protect biodiversity. One of the world's largest regreening programs in the City of Greater Sudbury, Canada has… more Full Text: The biogeochemistry of regreened forests on a mining and smelting degraded landscape A Thesis Submitted to the Committee on Graduate Studies in the Partial Fulfilment of the Requirements for the Degree of Doctor of Philosophy in the Faculty of Arts and …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Migratory fish can influence the rivers where they spawn by depositing nutrients and organic matter which increase primary and secondary production. Past research in the Laurentian Great Lakes has focused on individual tributaries, accordingly, the spatial extent of subsidies and how environmental factors influence subsidies are not clear. To determine which tributaries received… more Full Text: Spatial Patterns of Resource Subsidies in Great Lakes Tributaries from Migratory Fishes A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>This study reports on as series of laboratory wind tunnel experiments aimed at furtheringour understanding of aggregate breakdown and dust release during aeolian transport, and
thereby, has implications for air quality and the management of dust emission through water
application. Particles aggregates 500 um in diameter were formed and isolated by the
wetting, drying, and screening of… more Full Text: LABORATORY WIND TUNNEL EXPERIMENT ON DUST GENERATION DURING THE SALTATION OF AGGREGATES FORMED FROM OWENS LAKE PLAYA SEDIMENTS A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Lake whitefish (Coregonus clupeaformis) are ecologically, economically, and culturally significant across their range, yet little is documented about the species' spawning behaviour. Recruitment of lake whitefish has dramatically declined over the past two decades across many regions of the Laurentian Great Lakes, most notably in lakes Huron and Michigan, prompting research efforts… more Full Text: Sex-specific spawning behaviour of lake whitefish in Lake Huron revealed by fine-scale acoustic telemetry A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Brown, Rachel, Thesis advisor (ths): Aherne, Julian, Degree committee member (dgc): Koprivnjak, Jean-François, Degree committee member (dgc): Sager, Eric, Degree committee member (dgc): Lafleur, Peter, Degree granting institution (dgg): Trent University Abstract: <p>In this study, twenty lake catchments surrounding Iqaluit, Baffin Island, were assessed for trace element concentrations (Al, As, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sb, Se, THg, V, Zn) in lake water, catchment soil, lake sediment, and moss (Hylocomium splendens). Additionally, the sources of each trace element were determined through the positive matrix factorization (PMF) model and… more Full Text: i Trace elements in lake catchments surrounding Iqaluit, Baffin Island, NU A thesis submitted to the Committee of Graduate Studies in partial fulfillment of the requirements for the degree of Master of Science in the Faculty of Arts and Science Trent …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Annan, Melanie Joslyn, Thesis advisor (ths): Frost, Paul C, Degree committee member (dgc): Koprivnjak, Jean-François, Degree committee member (dgc): Bailey, Robert, Degree committee member (dgc): Raby, Graham, Degree granting institution (dgg): Trent University Abstract: <p>In situ chlorophyll sensors are beneficial for monitoring of long-term impacts of algal blooms and accessing water quality issues in bodies of water. However, more research is needed to validate their efficacy and understand how environmental conditions can influence sensor measurements. I assessed the performance of an in situ chlorophyll sensor under controlled environmental conditions… more Full Text: IN SITU CHLOROPHYLL MEASUREMENTS WITH FLUOROMETRY: IN-LAB VALIDATION AND USE IN LAKE VERTICAL PROFILING A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfilment of the Requirements for the Degree of Master of Science in the Faculty of …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Understanding the spatial ecology of large carnivores in increasingly complex, multi-use landscapes is critical for effective conservation and management. Complementary to this need are robust monitoring and statistical techniques to understand the effect of bottom-up and top-down processes on wildlife population densities. However, for wide-ranging species, such knowledge is often… more Full Text: LINKING LARGE SCALE MONITORING AND SPATIALLY EXPLICIT CAPTURE– RECAPTURE MODELS TO IDENTIFY FACTORS SHAPING LARGE CARNIVORE DENSITIES: CASE STUDY OF THE AMERICAN BLACK BEAR IN ONTARIO, CANADA A Thesis Submitted to the Committee of Graduate Studies in …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Land cover change has the potential to alter the hydrologic regime from its natural state. Southern Ontario contains the largest and fastest growing urban population in Canada as well as the majority of prime (Class I) agricultural land. Expansions in urban cover at the expense of agricultural land and resultant 'agricultural intensification', including expansion of tile… more Full Text: Land Cover Effects on Hydrologic Regime within Mixed Land Use Watersheds of East-Central Ontario A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfilment of the Thesis Requirements for the Degree of Master of Science in the Faculty of …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>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… more Full Text: Electrochemical versus Chemical Oxidation of Bulky Phenols: 2,6-diphenylphenol and 2,2dihydroxybiphenol A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Karl, Katrina Anna-Marie, Thesis advisor (ths): Aherne, Julian, Degree committee member (dgc): Sager, Eric, Degree committee member (dgc): Liang, Tanner, Degree committee member (dgc): Hickie, Brendan, Degree committee member (dgc): McKenna-Neuman, Cheryl, Degree granting institution (dgg): Trent University Abstract: <p>Plastic pollution is a growing concern, owing to its durability, ubiquity, and potential health impacts. The overall objective of this study was to assess the abundance and distribution of microplastics within Lake Scugog catchment, Ontario. This was fulfilled through two tasks (i) the development of a microplastic particle budget for the lake catchment, and (ii) the determination of the… more Full Text: Abundance and Distribution of Microplastics in Lake Scugog Catchment, Ontario A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfilment of the Requirements for the Degree of Master of Science in the Faculty of Arts and Science TRENT …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Fungal pathogens adapt to environmental changes faster than their hosts, due in part to their adaptive mechanisms exhibited in response to stress. Ustilago maydis was used to investigate potential natural antisense transcript (NAT) RNA-mediated mechanisms that enhance fungal adaptation to stress. Of the 349 NATs conserved amongst U. maydis and two related smut fungi, five NATs were… more Full Text: Exploring the Role of Natural Antisense Transcripts in the Stress Response of Ustilago maydis A thesis submitted to the Committee of Graduate Studies in partial fulfillment of the requirements for the degree of Master of Science in the faculty of Arts and …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>In Ontario, the dominant cash crop rotations consist of soybean (SB), which is a leguminous crop grown in rotation with maize (MZ) and winter wheat (WW). In addition to these crops, some farmers integrate cover crops (CC) into crop rotation, especially during the fallow period and winter seasons, to reduce nitrogen (N) losses via nitrate (NO3-) leaching and emission of N2 and the… more Full Text: i IMPACTS OF COVER CROPS ON SOIL HEALTH, SOIL NITROGEN DYNAMICS, AND CYTOKININ PROFILES A Thesis Submitted to the Committee on Graduate Studies In Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Nutrient losses from forest soils caused by decades of acid deposition and intensive tree harvesting have affected tree growth and forest health in North America and Europe. Non-industrial wood ash (NIWA), a substance rich in macronutrients, may be a potential remediation strategy to return lost nutrients to forest. However, the chemical composition of NIWA and its effects on soil and… more Full Text: Non-industrial wood ash chemistry and its biogeochemical effects on sugar maple (Acer saccharum, Marsh.) in three central Ontario sugar-bushes A Thesis Submitted to the Committee on the Graduate Studies in Partial Fulfillment of the Requirements for the …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The accelerated recovery of base-poor soils from the legacy effects of acidic deposition may be possible by applying industrial wood ash as a soil amendment. Wood ash may be an effective soil amendment due to its high alkalinity and concentrations of several essential nutrients, such as calcium, magnesium, potassium, and phosphorus, that are retained after the volatilization of the… more Full Text: Short-term biogeochemical response of hardwood forest soils to wood ash additions in central Ontario A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of …
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by progressive loss in function of motor neurons. Elevated levels of biologically important metal ions, such as copper (II) (Cu(II)), zinc (II) (Zn(II)) or iron (III) (Fe(III)), may contribute to the disease. Moreover, Cu(II) interactions with other proteins associated with ALS have been investigated;… more Full Text: ELECTROCHEMICAL AND SURFACE ANALYSIS OF METAL IONS AND TDP-43 PROTEIN INTERACTIONS A Thesis Submitted to the Committee of Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and Science …
