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Comparison Of Mercury Dynamics In High Arctic Lakes, Karista Elizabeth Hudelson
Comparison Of Mercury Dynamics In High Arctic Lakes, Karista Elizabeth Hudelson
Electronic Theses and Dissertations
Arctic lakes and their watersheds are being simultaneously subjected to the deposition of atmospheric pollutants such as mercury (Hg), and warming. Once Hg enters an ecosystem, it may become methylated, greatly increasing its toxicity and reducing organisms’ ability to eliminate it. Mercury is bioaccumulative and thus found at high concentrations in land-locked Arctic char (Salvelinus alpinus) and other top predators. In sediment, Hg methylation rate is temperature-dependent, and [Hg] in Arctic predatory fish has been correlated with trends in air temperature. Despite reductions in Hg emissions in North America and Europe, [Hg] continues to rise in some Arctic species. The …
Community Composition Of Aquatic Invertebrates Along Dissolved Oxygen Gradients In Lake Huron Coastal Wetland Wet Meadows, Danielle Elizabeth Gunsch
Community Composition Of Aquatic Invertebrates Along Dissolved Oxygen Gradients In Lake Huron Coastal Wetland Wet Meadows, Danielle Elizabeth Gunsch
Electronic Theses and Dissertations
Wetlands are an ecotone between terrestrial and aquatic environments and therefore support a diverse and unique flora and fauna. Macroinvertebrates make up a substantial portion of the biodiversity. The relationship between aquatic invertebrate community composition and the association with submergent and emergent macrophyte biomass is relatively well documented. However, the constraints imposed by conditions in wet meadow zones – areas that are intermittently flooded but whose soils are typically water-saturated and anoxic are less well understood. I investigated the relative importance of dissolved oxygen along the water depth gradient and its influenced on invertebrate community composition in comparison to the …
Investigating The Educational Experiences Of Girls In Tanzania: The Efficacy Of A Girls’ Leadership And Empowerment Program, Brianna Louise Jentzel
Investigating The Educational Experiences Of Girls In Tanzania: The Efficacy Of A Girls’ Leadership And Empowerment Program, Brianna Louise Jentzel
Electronic Theses and Dissertations
Considerable research has been conducted to identify the barriers to girls’ education in sub-Saharan Africa and the reasons for their existence. These factors can be grouped into three different categories: economic, socio-cultural, and contextual. There are steps that can and must be taken in order to support girls in their educational endeavours in sub-Saharan Africa. These steps include, but are not limited to, addressing cultural biases towards girls and education; eradicating gender-based violence in schools; improving infrastructure issues; and increasing the number of female teachers in classrooms. This study will explore the educational experiences of secondary school girls in Singida, …
Genetic Algorithm Based Convolutional Neural Network For Few Shot Learning In Disease Type Prediction On Rna-Seq Data, Kowshik Sharan Subramanian
Genetic Algorithm Based Convolutional Neural Network For Few Shot Learning In Disease Type Prediction On Rna-Seq Data, Kowshik Sharan Subramanian
Electronic Theses and Dissertations
Diagnosing the correct types of the disease is essential to the effective treatment. The diagnosis may not always be straightforward from the biological tests especially during the early stages of the disease. Human body responds to the disease by producing certain proteins. If we know which genes are active, that is, which proteins are being produced, we can more accurately classify disease subtypes. This study is based on the genetic information extracted from the patient’s biological sample and is used to classify cancer subtypes. Among different types of genetic data, we consider RNA-seq data in this thesis. Studies based on …
Progress Towards The Synthesis Of Carbohydrate-Based Biomedical And Material-Science Relevant Molecules, Seyed Iraj Sadraei
Progress Towards The Synthesis Of Carbohydrate-Based Biomedical And Material-Science Relevant Molecules, Seyed Iraj Sadraei
Electronic Theses and Dissertations
Cancer cells express unique carbohydrate signatures on their surfaces known as tumour-associated carbohydrate antigens (TACAs). These antigens are not typically found on healthy cells and therefore are promising targets for immunotherapy using adap-tive immune response tools. If the immune system could theoretically be “trained” to tar-get this molecule, then the immune system could be used to help eradicate any cancer cells from the host. A problem with carbohydrate-based targets is they are not stable in the body because of their inherent acetal functionality: the glycosidic bond. This research aims to remove the unstable acetal functionality in carbohydrates by replacing the …
Molecular Techniques To Advance The Conservation Of Imperilled Freshwater Fishes, Ryland George Corchis-Scott
Molecular Techniques To Advance The Conservation Of Imperilled Freshwater Fishes, Ryland George Corchis-Scott
Electronic Theses and Dissertations
The conservation of imperilled fishes should be informed by species-specific genetic information. However, there are a lack of molecular data for most species at risk with the development of species-specific primer acting as a barrier to genetic evaluations. Here, I describe the development and preliminary testing of a set of microsatellite markers for the imperilled Lake Chubsucker (Erimyzon sucetta). These markers are apparently diploid, are polymorphic, and have been demonstrated to amplify individuals from across the species’ North American range. The microsatellite markers described in this thesis have applications for population genetics as well as informing source population selection for …
The Influences Of Canadian Outdoor Adventure Education On Personal And Spiritual Growth, Philip William Robson
The Influences Of Canadian Outdoor Adventure Education On Personal And Spiritual Growth, Philip William Robson
Electronic Theses and Dissertations
Canadian outdoor adventure education (Canadian OAE) is a unique teaching method that can create affordances for beneficial outcomes for its participants. In Ontario high schools, Canadian OAE is typically found in Integrated Curriculum Programs with an environmental focus. While there are over 100 of these programs in Ontario school-based opportunities for Canadian OAE have been rare in Windsor-Essex over the last 25 years. However, a Windsor-Essex Christian private high school now offers experiences in Canadian OAE. The purpose of this case study is to describe the influence of a Grade 11 program on its students. Using an online questionnaire and …
Impact Of Design Patterns On Code Quality In Blockchain-Based Applications, Vijay Rajasekar Thirulokachander
Impact Of Design Patterns On Code Quality In Blockchain-Based Applications, Vijay Rajasekar Thirulokachander
Electronic Theses and Dissertations
Blockchain or Distributed Ledger Technology (DLT) introduces a new computing paradigm that is viewed by experts as a disruptive and revolutionary technology. While bitcoin is the most well-known successful application of blockchain technology, many other applications and sectors could successfully utilize the power of blockchain. The potential applications of blockchain beyond finance and banking encouraged many organizations to integrate and adopt blockchain into existing or new software systems. Integrating and using any new computing paradigm is expected to affect the best practice and design principles of building software systems. Emerging blockchain-based applications require careful attention to many functional and nonfunctional …
A Methodological Framework For The Assessment Of Level Of Service Of Stormwater Infrastructure, Dorcas Appiah
A Methodological Framework For The Assessment Of Level Of Service Of Stormwater Infrastructure, Dorcas Appiah
Electronic Theses and Dissertations
With climate change becoming the single most concern in the contemporary world, stormwater management has been receiving greater attention than before. Even though stormwater infrastructure plays a pivotal part in the municipality, there are no available standards or tools to assess its level of service (LOS). Stormwater infrastructure should manage the quantity and quality of stormwater by controlling flooding, pollutants and ensuring public safety. Currently, creating a proactive stormwater infrastructure management system is hindered by a lack of resources despite the importance of these resources for proper stormwater infrastructure management. In an advanced asset management system, LOS assessment is identified …
Freshwater Beach Microbial Ecology, Community Dynamics And Adaptive Responses To Environmental Changes Using Metabarcoding And Transcriptomics, Abdolrazagh Hashemi Shahraki
Freshwater Beach Microbial Ecology, Community Dynamics And Adaptive Responses To Environmental Changes Using Metabarcoding And Transcriptomics, Abdolrazagh Hashemi Shahraki
Electronic Theses and Dissertations
The Laurentian Great Lakes (LGLs) represent the single most valuable natural resource on the North American continent and are a critical source of drinking water, important aquatic species habitat, water for the industrial sector and tourism/recreational activities as well as many other ecological services. LGLs ecosystems are changing rapidly due to climate change effects and are thus highly susceptible and responsive to any added anthropogenic stressors. The aquatic bacterial community affects critical ecosystem functions, such as nutrient cycling, water quality, recreational activities, etc., in ecosystems such as the LGLs, but perturbations can alter both the composition and functionality of the …
Perception And Performance Of Working Memory: Insights Into Test Anxiety, Rebecca Grossman
Perception And Performance Of Working Memory: Insights Into Test Anxiety, Rebecca Grossman
Electronic Theses and Dissertations
Test anxiety is a common phenomenon that can be detrimental to cognitive performance, academic achievement, and mental health. One mechanism consistently identified as playing a role in such deficits is working memory. While many studies have investigated the relationship between working memory and test anxiety, approaches to measuring working memory have varied between using assorted standardized behavioural measures and self-report inventories. While self-report inventories are often found to be valid, there is some evidence suggesting that subjective appraisal of functioning might not be accurate in all contexts. Therefore, the purpose of this study was to determine whether self-appraisal of working …
Design Of A Real-Time Method For Detection And Evaluation Of Corrosion In Vehicles, Kunj Dhonde
Design Of A Real-Time Method For Detection And Evaluation Of Corrosion In Vehicles, Kunj Dhonde
Electronic Theses and Dissertations
Automobiles endure several challenges when operating on the road that can degrade their performance, functionality, appearance, and overall utility. Although, corrosion is very ancient, it is the most dangerous hazard to an automobile. Corrosion can be defined as natural interaction between the metal and its surrounding atmosphere which results in oxidation of metal. This leads to change in metal properties and can be severely dangerous. One of the easiest ways to recognize corrosion is by using visual inspection methods. Visual inspection results are highly dependent on the operator’s way of analyzing corrosion and operator’s experience. Thus, visual inspection method lack …
Control Of Four-Wire Inverter-Interfaced Dgs For Accurate Fault Type Classification, Wael Radwan
Control Of Four-Wire Inverter-Interfaced Dgs For Accurate Fault Type Classification, Wael Radwan
Electronic Theses and Dissertations
Inverter-interfaced distributed generators (IIDGs) generate fault currents that are different from those generated by conventional synchronous generators (SGs). As a result, commercial relays—that utilize current-angle-based phase selection measurements—misidentify faulty phase(s), which adversely impact the grid resiliency and reliability. In this thesis, a new control scheme is proposed to regulate the sequence components of the IIDG currents during unbalanced faults to ensure accurate fault type classification by commercial relays. The proposed controller controls the positive-sequence and negative-sequence currents in the dq-frame with a decoupled synchronous reference frame (DDSRF) based phase-locked loop (PLL) for components extraction and synchronization. It also uses a …
Testing The Circadian Regulation Of The Jak/Stat Signaling Pathway, Daniela Bianca Bachetti
Testing The Circadian Regulation Of The Jak/Stat Signaling Pathway, Daniela Bianca Bachetti
Electronic Theses and Dissertations
Many organisms coordinate behavioural and physiological processes with the Earth’s 24-hour light/dark cycle. This cycle, the circadian rhythm, is anticipated by the circadian clock, a 24-hour timekeeper that is comprised of a transcription-translation feedback loop. The clock regulates the transcription of genes, which can influence the expression of oscillating circadian behaviours, such as sleep/wake. Maintaining tissue homeostasis is an important process, especially in tissues with high cellular turnover rates, such as the intestine. Involved in this intestinal regenerative response is the Janus Kinase/Signal Transducer and Activator of Transcription (JAK/STAT) pathway. Damaged cells or exposure to a stressful environment will activate …
Development Of Graphene-Filled Fluoropolymer Composite Coatings For Condensing Heat Exchangers, Mitchell Jacob Cierpisz
Development Of Graphene-Filled Fluoropolymer Composite Coatings For Condensing Heat Exchangers, Mitchell Jacob Cierpisz
Electronic Theses and Dissertations
Low-temperature waste heat recovery employs condensing heat exchangers to recover both sensible and latent heats. Due to the condensation of flue gases within these heat exchangers, they are subjected to severe corrosion. Perfluoroalkoxy (PFA) has been applied as a barrier layer on the surfaces of these heat exchangers for the prevention of corrosion. However, PFA has exhibited poor thermal properties and durability, which are requirements in low-temperature heat recovery applications. In this thesis, carbon-based nano-materials (8 nm and 60 nm thickness graphene particles and multi-walled carbon nanotubes, MWCNT) were incorporated into fluoropolymer (PFA) powders to generate thermally conductive and corrosion …
Gas Migration Testing At Abandoned Well Sites In Western Canada, Kelsey Lauren Friesen
Gas Migration Testing At Abandoned Well Sites In Western Canada, Kelsey Lauren Friesen
Electronic Theses and Dissertations
Fugitive releases from natural gas wells are a persistent issue in the oil and gas sector and comprises 27% of Canada’s greenhouse gas emissions. Natural gas within this sector accounts for 44% of Canada’s methane releases and 70% of Alberta’s. Releases from wells are documented; however, knowledge gaps persist for abandoned assets. When fugitive gases are suspected, regulatory standards require gas migration testing. This thesis presents the beginnings of developing ‘best practices’ in testing recommendations to better estimate emissions from abandoned wells. Testing requires detection of stray gases utilizing a worker-safety portable handheld multi-gas monitor; however, our work shows this …
Author Name Disambiguation Using Co-Training, Yan Gao
Author Name Disambiguation Using Co-Training, Yan Gao
Electronic Theses and Dissertations
In the community of bibliometrics, author name ambiguity means that author's name is not a reliable identier for associating academic papers with their authors. Author name ambiguity has been the problem in bibliometrics and service providers like Google Scholar, generating a domain of study call Author Name Disambiguation (AND). Author name ambiguity is often tackled using classication techniques, where labeled papers are provided, and papers are assigned to correct authors according to the paper text and paper citations. When applying classication methods to author name disambiguation, two issues stand out: one is that a paper has multiple views (paper text …
What Trying To Forget Tells Us About Trying To Remember: A Link Between Associative Memory And Directed Forgetting, Brette E. Lansue Burns
What Trying To Forget Tells Us About Trying To Remember: A Link Between Associative Memory And Directed Forgetting, Brette E. Lansue Burns
Electronic Theses and Dissertations
Much of directed forgetting research has pitted two competing hypotheses against each other: selective rehearsal and retrieval inhibition. Primarily, the current work explores a novel link between directed forgetting and associative memory, such that the item and cue are unitized and encoded together at study and at test, participants make their old/new judgement based on this association. Specifically, a more typical directed forgetting procedure where participants were told to remember specific items (R-cue) and forget others (F-cue) was compared with a procedure where participants were told to remember which cue (Blue-cue vs. Yellow-cue) was associated with each item. At test, …
Coaches’ And Athletic Directors’ Use Of Strengths In Implementing Policy: An Exploratory Study Of Transgender Policies In U Sports And Ccaa From A Strengths And Hope Perspective, Chelsey Hannah Leahy
Coaches’ And Athletic Directors’ Use Of Strengths In Implementing Policy: An Exploratory Study Of Transgender Policies In U Sports And Ccaa From A Strengths And Hope Perspective, Chelsey Hannah Leahy
Electronic Theses and Dissertations
In September 2018 U SPORTS released for the first time a transgender policy; CCAA had released their policy seven seasons earlier. Currently there exists no research on how sport administrators (i.e., coaches and athletic directors) might implement these policies, which leads to the purpose of this exploratory study, which was to examine how coaches and athletic directors (ADs) might implement transgender related policy in U SPORTS and CCAA. Framed within a strengths and hope perspective (Paraschak, 2013b), participants’ shared preferred futures were established (Jacobs, 2005) as well as an understanding of how they shaped and simultaneously were shaped by others. …
Empirical Investigation Of Flow Reversal Strategy In Aftertreatment System, Li Liang
Empirical Investigation Of Flow Reversal Strategy In Aftertreatment System, Li Liang
Electronic Theses and Dissertations
The flow reversal strategy is categorized as one type of the active flow control strategies. Previous research results have shown that the reaction heat of the catalysts in the aftertreatment system can be trapped by the flow reversal strategy, which is beneficial for the enhancement of the conversion efficiency of the aftertreatment system. In order to better understand the operational principle of the flow reversal system, an active flow aftertreatment system that employs flow reversal strategy has been developed in the Clean Combustion Engine Lab at the University of Windsor. The main objective of this study is to investigate the …
Diketopyrrolopyrrole-Based Conjugated Polymer Nanoparticles Toward New Theranostics For Glioblastoma Multiforme, Gage Mason
Electronic Theses and Dissertations
Novel diketopyrrolopyrrole-based semiconducting polymer nanoparticles (SPN) were generated with hyaluronic acid (HA), polysorbate 80 (Chapter III) to probe the optical and electronic properties of the resulting CPNs. The addition of a fluorescein conjugated Hyaluronic Acid (HA) to the SPN design allows for selective targeting of CD44 positive TICs (Chapter IV). Upon generation of a series of novel SPNs, the optical and photophysical properties of the new nanomaterials were probed in solution using various techniques including transmission electron microscopy (TEM), dynamic light scattering (DLS), small-angle neutron scattering (SANS), transient absorption (TAS), and UV−vis spectroscopy (UV-Vis). A careful comparison was performed between …
The Effect Of Motivation Status On Performance Validity In Concussion Baseline Testing, Isabelle Messa-Hamidi
The Effect Of Motivation Status On Performance Validity In Concussion Baseline Testing, Isabelle Messa-Hamidi
Electronic Theses and Dissertations
Baseline neurocognitive testing is routinely conducted in athletes to obtain a point of comparison in the event of a concussion. Differential motivation exists, however, between baseline and post-injury testing, so clinicians must ensure the validity of baseline performance to make valid comparisons post-injury. There is increasing evidence that the validity indicators embedded within the ImPACT, the most widely used test in this context, are insensitive to invalid performance. The objective of the current study was to assess the convergent validity of ImPACT-based EVIs against a battery of well-established PVT/EVIs in an experimental malingering paradigm. Participants were undergraduate students at a …
Investigating The Effects Of Lestaurtinib On Skeletal Muscle Regeneration, Samantha Monk
Investigating The Effects Of Lestaurtinib On Skeletal Muscle Regeneration, Samantha Monk
Electronic Theses and Dissertations
Repurposing drugs to enhance skeletal muscle repair mechanisms may unveil novel treatments for certain muscular pathophysiological states while maintaining high safety and efficacy standards at lower costs. The anti-cancer drug lestaurtinib appears to induce fusion and differentiation of myoblasts in vitro, inviting an attempt in the present study to determine if these results are replicable in vivo. To initiate skeletal muscle regeneration, tibialis anterior muscles were injured in both legs of C57BL/6J mice (n = 30) using the myotoxin, cardiotoxin (CTX). At 3 days post-CTX, the affected area on the right leg was treated with lestaurtinib at a concentration of …
What Clients Say About Their Single Largest Change In Treatment: Comparing Sudden Gains Across Treatment Approaches And Phases Of Therapy, Orrin-Porter Morrison
What Clients Say About Their Single Largest Change In Treatment: Comparing Sudden Gains Across Treatment Approaches And Phases Of Therapy, Orrin-Porter Morrison
Electronic Theses and Dissertations
Sudden gains, or sharp decreases in client’s symptoms and distress, are highly predictive of positive therapy outcome. However, why sudden gains occur remains unanswered. This study sought to analyze the processes that arise during sudden improvements in symptoms by examining clients’ own insight into what they found to be helpful in therapy while focusing on phases of therapy and treatment approach as moderators of these change processes. To do so, an archive of weekly therapy session data was obtained of clients at an outpatient psychotherapy clinic. Therapy was provided by advanced graduate psychology students at a partnering university and consisted …
Finding Binding Sites In Chip-Seq Data Via A Linear-Time Multi-Level Thresholding Algorithm, Musab Mushtaque Naik
Finding Binding Sites In Chip-Seq Data Via A Linear-Time Multi-Level Thresholding Algorithm, Musab Mushtaque Naik
Electronic Theses and Dissertations
Chromatin immunoprecipitation (ChIP-Seq) has emerged as a superior alternative to microarray technology as it provides higher resolution, less noise, greater coverage and wider dynamic range. While ChIP-Seq enables probing of DNA-protein interaction over the entire genome, it requires the use of sophisticated tools to recognize hidden patterns and extract meaningful data. Over the years, various attempts have resulted in several algorithms making use of different heuristics to accurately determine individual peaks corresponding to unique DNA-protein binding sites. However, finding all the binding sites with high accuracy in a reasonable time is still a challenge. In this work, we propose the …
Spam Review Detection Using Self-Organizing Maps And Convolutional Neural Networks, Ashraf Neisari
Spam Review Detection Using Self-Organizing Maps And Convolutional Neural Networks, Ashraf Neisari
Electronic Theses and Dissertations
Online public reviews have significant influenced customers who purchase products or seek services. Fake reviews are posted online to promote or demote targeted products or reputation of the organizations and businesses. Spam review detection has been the focus of many researchers in recent years. As the online services have been growing rapidly, the importance of the issue is ever increasing and needs to be addressed properly. In this regard, there is a variety of approaches that have been introduced to distinguish truthful reviews from the fake ones. The main features engineered in the past studies typically involve two types of …
Life Cycle Thinking-Based Evaluation Framework For Road Infrastructure: A Bim-Based Approach, Kartik Rajendrakumar Patel
Life Cycle Thinking-Based Evaluation Framework For Road Infrastructure: A Bim-Based Approach, Kartik Rajendrakumar Patel
Electronic Theses and Dissertations
This research paper analyzes the material compatibility, in terms of weld strength, of thermoplastics currently in use for external lighting applications. Signal lamps typically consist of a transparent lens welded to an opaque housing. The different types of polymers used in housing materials are polycarbonate (PC), acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), and blends thereof. The different types of transparent lens materials are polymethyl methacrylate (PMMA) and PC. The specific thermoplastic material grades in this document are kept confidential. The scope of the work is to determine plaque-level compatibility of materials as a function of weld strength performance …
Weldability Of Linear Vibration Welded Dissimilar Amorphous Thermoplastics For Automotive External Lighting Applications, Stephen Daniel Austin Passador
Weldability Of Linear Vibration Welded Dissimilar Amorphous Thermoplastics For Automotive External Lighting Applications, Stephen Daniel Austin Passador
Electronic Theses and Dissertations
This research paper analyzes the material compatibility, in terms of weld strength, of thermoplastics currently in use for external lighting applications. Signal lamps typically consist of a transparent lens welded to an opaque housing. The different types of polymers used in housing materials are polycarbonate (PC), acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), and blends thereof. The different types of transparent lens materials are polymethyl methacrylate (PMMA) and PC. The specific thermoplastic material grades in this document are kept confidential. The scope of the work is to determine plaque-level compatibility of materials as a function of weld strength performance …
Analyzing The Impacts Of Emerging Technologies On Workforce Skills: A Case Study Of Industrial Engineering In The Context Of The Industrial Internet Of Things, Bruno Peixoto Aguilar
Analyzing The Impacts Of Emerging Technologies On Workforce Skills: A Case Study Of Industrial Engineering In The Context Of The Industrial Internet Of Things, Bruno Peixoto Aguilar
Electronic Theses and Dissertations
New technologies can result in major disruptions and change paradigms that were once well established. Methods have been developed to forecast new technologies and to analyze the impacts of them in terms of processes, products, and services. However, the current literature does not provide answers on how to forecast changes in terms of skills and knowledge, given an emerging technology. This thesis aims to fill this literature gap by developing a structured method to forecast the required set of skills for emerging technologies and to compare it with the current skills of the workforce. The method relies on the breakdown …
Mechanism Determination Of The Effects Of Pancratistatin On Model Mitochondrial Membranes, Brett William Rickeard
Mechanism Determination Of The Effects Of Pancratistatin On Model Mitochondrial Membranes, Brett William Rickeard
Electronic Theses and Dissertations
Apoptosis is programmed cell death that is essential for physiological development and tissue homeostasis. From a biochemical standpoint, this process can be exploited to target and eliminate specific cell types, such as cancer cells. Pancratistatin (PST) is an antiviral alkaloid metabolite that has demonstrated directed apoptotic action on various human cancer cell lines while having minimal/no toxic effect on normal cells. However, PST’s mechanism of action remains uncertain. To better understand how PST induces its anti-cancer action various biophysical techniques were employed. Neutron spin-echo (NSE) spectroscopy was used to examine how PST impacted the bending fluctuations of large unil- amellar …