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An Explorative Case Study Of The Perceptions And Attitudes Of Lebanese School Educators Toward The Integration Of Outdoor Education In The Teaching Of School Curricula, Ziad Fawaz Dabaja
An Explorative Case Study Of The Perceptions And Attitudes Of Lebanese School Educators Toward The Integration Of Outdoor Education In The Teaching Of School Curricula, Ziad Fawaz Dabaja
Electronic Theses and Dissertations
In this era plagued with a detrimental sedentary indoor lifestyle, children are becoming further disconnected from the outdoors, including the natural environment. Many reasons could be causing this prevalent way of life, such as parents’ concerns over their children’s safety and the increase in time spent in front of a screen. One way to counter this harmful trend that can lead to both mental and physical health problems is to implement outdoor education in schools and daycares. Research suggests that outdoor education can not only help students engage in physical activities, but also improve their (a) mental, and emotional wellbeing, …
A Numerical Study On The Effect Of Temperature And Chemical Mechanism On Soot Formation In An Ethylene-Air Laminar Coflow Diffusion Flame, Yasaman Amidpour
A Numerical Study On The Effect Of Temperature And Chemical Mechanism On Soot Formation In An Ethylene-Air Laminar Coflow Diffusion Flame, Yasaman Amidpour
Electronic Theses and Dissertations
Soot particles are harmful emissions that can effect human health, the environment and contribute to global warming that is why the study of soot formation is crucial. A better understanding of soot formation can lead to more efficient combustion device designs, reduce their emissions and their impact on human health and the environment. This thesis contains two different detailed numerical studies. This work aims to find solutions to reduce soot by controlling combustion variables (Chapter 3) and understand the current ability of chemical mechanisms to predict PAH and soot concentrations (Chapter 4) by applying a detailed numerical method. The results …
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 …
A Novel Physical Unclonable Function (Puf) Featuring 0.113 Fj/B For Iot Devices, Harikrishnan Balagopal
A Novel Physical Unclonable Function (Puf) Featuring 0.113 Fj/B For Iot Devices, Harikrishnan Balagopal
Electronic Theses and Dissertations
A physically unclonable function (PUF) is useful for authentication purposes and is a function created for its inherent uniqueness and inability of adversaries to duplicate it. In this thesis, a PUF is designed, which is a combination of both digital and analog circuits. This PUF could be designed partially based on a semi-automated approach using custom-built P-cells. The PUF is implemented using novel digital circuits, which have been designed using basic digital gates with a minimal number of transistors. The proposed PUF is developed by the introduction of a layer of multiplexers, which is triggered by a novel SR-latch based …
Barriers To Reporting Sexual Harassment: What Encourages Disclosure?, Emma Claire Bailey
Barriers To Reporting Sexual Harassment: What Encourages Disclosure?, Emma Claire Bailey
Electronic Theses and Dissertations
Sexual harassment in the workplace has high prevalence rates and is associated with numerous negative outcomes. This study investigated why individuals choose not to report sexual harassment even when organizational policies designed to discourage and punish harassment are in place. An organizational climate intolerant of harassment; co-worker support; ease of reporting; policy awareness and perceived effectiveness; and employee attitudes about reporting harassment were the factors examined to determine whether they could help the disclosure and reporting of sexual harassment. A theory of reporting intentions was developed incorporating elements of the Theory of Planned Behaviour (TPB) to explain the underlying reasons …
Authentic Leadership Associations With Team Cohesion And Athlete Satisfaction: Examining The Relative Effects Of Coach And Athlete Leadership, Kyle Bezaire
Electronic Theses and Dissertations
The purpose of the present study was twofold. The first purpose was to determine if youth sport athletes perceived their head coaches and athlete leaders to differ in their frequency of use of authentic leadership behaviours. The second purpose was to determine which authentic leadership behaviours for each group were related to the outcomes of cohesion and athlete satisfaction. The sample comprised 119 competitive youth sport athletes. Results indicated that head coaches and athlete leaders both displayed all four authentic leadership behaviours (self-awareness, relational transparency, internalized moral perspective, and balanced processing of information), with head coaches displaying all four behaviours …
Methods Development For The Fluorescent Determination Of Inorganic Phosphate And Phospho-Proteins, Angela Awada
Methods Development For The Fluorescent Determination Of Inorganic Phosphate And Phospho-Proteins, Angela Awada
Electronic Theses and Dissertations
The micronutrient orthophosphate loss into the aquatic environment is one of the primary drivers of harmful algal blooms (HABs) which result in the contamination of drinking water and negatively affects recreation and tourism industries. The aim of this study was to develop fluorescence-based Pi sensors with sensitivity in the low micromolar range Various solid supports were surveyed as potential sensor optimizing components. Quinacrine mustard dihydrochloride bound to Sephadex® LH-20 yielded fluorescence detection of inorganic phosphate concentrations between 0.5-1.25 mM. Quercetin-Al (III), shared a direct negative fluorescence relationship with inorganic phosphate concentrations between 0-1 mM, in aqueous solutions of pH 5. …
Optimal Allocation Of Statcoms And Wind-Based Distributed Generators Using A Stochastic Mathematical Program, Mahzan Dalawir
Optimal Allocation Of Statcoms And Wind-Based Distributed Generators Using A Stochastic Mathematical Program, Mahzan Dalawir
Electronic Theses and Dissertations
In the last two decades, large economies worldwide have been relying increasingly on renewable energy sources to reduce greenhouse emissions and dependence on fossil fuels. This has changed the topology of distribution systems adding complexity to their planning and operation. In this study, a new planning model is proposed to allocate static synchronous compensators (STATCOMs) and wind-based distributed generators (W-DGs), considering the stochastic nature of wind velocities and load demands. The proposed optimization model is a mixed-integer nonlinear program (MINLP), which simultaneously allocates STATCOMs and W-DGs. It minimizes the costs of power losses, investment, operation, and maintenance while maximizing the …
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 …
A Hybrid Hypothesis For Understanding The Relation Between Adhd Symptoms, Facebook Use, And Social Distress And Loneliness, Shanna Deasley
A Hybrid Hypothesis For Understanding The Relation Between Adhd Symptoms, Facebook Use, And Social Distress And Loneliness, Shanna Deasley
Electronic Theses and Dissertations
Emerging research has explored how ADHD is related to Facebook and social media use. This study explored whether a hybrid hypothesis of the social compensation and cross-situational continuity hypotheses would explain potential inconsistencies in the Facebook usage of people with higher levels of ADHD symptoms. Specifically, the hybrid hypothesis proposed that people with social deficits have social motivations for using Facebook; however, they may not benefit from online interactions due to enacting the same problematic social behaviors that they do in offline settings. This study compared 87 young adults with different levels of ADHD symptoms on their Facebook usage patterns, …
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 …
A Taxonomy Of Sequential Patterns Based Recommendation Systems, Hemni Sri Rajeswari Karlapalepu
A Taxonomy Of Sequential Patterns Based Recommendation Systems, Hemni Sri Rajeswari Karlapalepu
Electronic Theses and Dissertations
With remarkable expansion of information through the internet, users prefer to receive the exact information they need through some suggestions to save their time and money. Thus, recommendation systems have become the heart of business strategies of E-commerce as they can increase sales and revenue as well as customer loyalty. Recommendation systems techniques provide suggestions for items/products to be purchased, rented or used by a user. The most common type of recommendation system technique is Collaborative Filtering (CF), which takes user’s interest in an item (explicit rating) as input in a matrix known as the user-item rating matrix, and produces …
Distinguishing Appraisals Of Memory Accuracy And Occurrence: A Functional Neuroimaging Study, Kassandra Helena Korcsog
Distinguishing Appraisals Of Memory Accuracy And Occurrence: A Functional Neuroimaging Study, Kassandra Helena Korcsog
Electronic Theses and Dissertations
The ability to remember has been described as one of the most important cognitive functions, largely because it is evolutionarily optimal to be able to retain information relevant to survival. Autobiographical memory, which is defined as one’s memory for their own experiences, is especially paramount as it contributes to self-identity and the ability to learn from past experiences. The current study investigated the brain activation associated with different types of social feedback on autobiographical memory through the use of Functional Near-Infrared Spectroscopy (fNIRS). Seventeen undergraduate participants were presented with video- and audio-recorded scenes of an actress performing everyday tasks. One …
Mental Health And Arab Canadian Immigrants: Risks, Protective Factors, And Resilience, Ruby (Rawa) Jamil
Mental Health And Arab Canadian Immigrants: Risks, Protective Factors, And Resilience, Ruby (Rawa) Jamil
Electronic Theses and Dissertations
Mental health is a term which encompasses “a positive sense of well-being, or the capacity to enjoy life and deal with the challenges we face” (Canadian Mental Health Association, 2018, p. 1). Both risk and protective factors have previously been found to be associated with Arab immigrants’ mental health. Some documented risk factors for poor mental health include economic stressors, weak English language proficiency, and trauma (Lemaster et al., 2018), whereas documented protective factors for optimal mental health include trait resilience (e.g., Lemaster et al., 2018). Given the risks that Arab immigrants face before and after migration, effective coping strategies …
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 …
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 …
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 …
Numerical And Experimental Investigation Of Jet Impingement Cooling For Electric Vehicle Inverters, Corey Jerome Klinkhamer
Numerical And Experimental Investigation Of Jet Impingement Cooling For Electric Vehicle Inverters, Corey Jerome Klinkhamer
Electronic Theses and Dissertations
With an increasing shift from the use of conventional internal combustion engine vehicles (ICE) to that of electric vehicles (EV), comes a great demand to improve the reliability and efficiency of on-board power electronics of an EV inverter. During typical operating conditions, heat fluxes up to 300 kW/m2 are common leading to SiC and GaN based switching elements to reach temperatures well above 175 ᵒC and causing them to fail. To this end, a thermal management system is required to cool the electronic components. Impinging jet technology is growing in popularity for electronics cooling applications due to its superior mass …
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 …
Field Assessments Of Anthropogenic Noise Effects On Free-Swimming Fishes, Rachel Hannah Pieniazek
Field Assessments Of Anthropogenic Noise Effects On Free-Swimming Fishes, Rachel Hannah Pieniazek
Electronic Theses and Dissertations
Anthropogenic noise is globally increasing in aquatic ecosystems and causes adverse repercussions in many fish species, yet its effects in the field are not well understood. Here, I test the impact of boat noise on a number of wild freshwater and marine fish species as well as captive black bullhead (Ameiurus melas), a common species in the Laurentian Great Lakes with known hearing specializations. In a laboratory setting, black bullhead were exposed to boat noise, and a quiet control then monitored for changes in foraging behaviours and swimming patterns when presented with food. Black bullhead exposed to boat noise foraged …
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 …
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 …
Breadth Of The Wild: Global Patterns In Elasmobranch Dietary Niche Breadth, Sarah Popov
Breadth Of The Wild: Global Patterns In Elasmobranch Dietary Niche Breadth, Sarah Popov
Electronic Theses and Dissertations
A widely recognized pattern in ecology is the latitudinal diversity gradient: increasing biodiversity with decreasing latitude. The latitude niche-breadth hypothesis states that the stable climate of the tropics allows for increased specialization (smaller niche), promoting greater biodiversity in the available niche space. The highly dynamic climate of the poles drives the evolution of generalists (larger niche), limiting biodiversity. While the fundamental question of “what drives species richness?” on land remains debated, it is even less understood in the marine environment. Elasmobranchs (sharks, skates, and rays) are a data-rich, globally distributed group that occupy an array of functional roles, inhabiting coastal …
Can A School-Based Intervention Improve Nutrition In The Family Home? An Evaluation Of The Effects Of A Centrally-Procured School Food Program On The Home Food Environment, Rebecca Reagan
Electronic Theses and Dissertations
Children have been cited as important influencers of family nutrition and, therefore, suggested to have the capacity to act as agents of change in the household and influence family food consumption. Furthermore, previous research has provided evidence of take-home effects in school-based nutrition interventions. Therefore, the purpose of this randomized control trial was to examine whether implementation of a centrally-procured school food program would produce changes in children’s home food environment, including fruit and/or vegetable availability and parental modelling of fruit and/or vegetable consumption. Findings of this study indicated that children’s fruit and vegetable consumption predicted parents’ fruit and vegetable …
Investigation Of Heat Recovery Methods From Molten Salts With Phase Change, Bharanidharan Rajasekaran
Investigation Of Heat Recovery Methods From Molten Salts With Phase Change, Bharanidharan Rajasekaran
Electronic Theses and Dissertations
In the present times there is a progressive surge in the energy requirements for industrial and domestic purposes, hence it is imperative to harvest energy from renewable sources. In addition to serving as a sustainable source of energy, these energy sources prove to be indispensable in the mitigation of the greenhouse effects. In the past several decades, various methods and processes for utilizing renewable energy sources have been developed and continue to be improved. Hydrogen holds the highest energy density compared to any common fuel. Along with its abundance and lightweight nature hydrogen is more eco-friendly during utilization and can …
Cholesterol-Dependent Regulation Of Neuromuscular Junction Development In Drosophila Melanogaster Larvae, Amber Shaheen
Cholesterol-Dependent Regulation Of Neuromuscular Junction Development In Drosophila Melanogaster Larvae, Amber Shaheen
Electronic Theses and Dissertations
Cholesterol is a versatile molecule that determines the biophysical properties of cellular membranes and regulates various signalling pathways. Cholesterol has also been implicated in synaptic development. In vitro studies have shown that reducing cholesterol levels can increase or decrease neurite outgrowth in different types of cultured neurons. However, the underlying mechanisms of how reduced cholesterol content of membranes affects synaptic growth have not been explored in detail. Cholesterol has been shown to regulate the cAMP-protein kinase A (PKA) pathway in non-neuronal cells. The cAMP-PKA pathway is known to be an important regulator of synaptic development. My primary objective was to …