Digital Commons Network^™

Health-Aware Food Planner: A Personalized Recipe Generation Approach Based On Gpt-2, Bushra Aljbawi

Theses and Dissertations (Comprehensive)

"What to eat today?" With the flourish of Internet, more and more people nowadays are inclined to find an answer to this most problematic question online. The recent explosion of food networks; however, produces large volumes of recipes, making it even harder to make an informed decision. This yields the need for advanced decision-making algorithms and efficient recommendation systems. Conventional recommender systems are not feasible anymore as food is a complicated feature that presents unique challenges and is less studied. For example, it can be one of the main reasons for obesity and many other chronic diseases. Food recommender system …

Assessing Threats And Mitigation For Scarlet Ammannia (Ammannia Robusta) In Southwestern Ontario, Kayla Salive

Theses and Dissertations (Comprehensive)

Scarlet Ammannia (Ammannia robusta) is an annual emergent wetland plant of the Lythraceae family. Throughout most of its distribution, the species population is stable under present conditions. However, this is not the case in Canada, where A. robusta is considered endangered with only a few small populations documented in British Columbia and Ontario. In response, a recovery strategy was created for A. robusta outlining the lack of information on the species biology and ecology, with a primary objective to assess the populations in Ontario and gain information on what may be contributing to the species rarity. To assess …

The Lived Experiences Of People With Disabilities And Their Families: Transitioning To Adulthood And The Role Of Independent Facilitation, Emily Christine Tang

Theses and Dissertations (Comprehensive)

ABSTRACT

Objective

Emerging adulthood can be a stressful life stage due to the many life choices available and is especially challenging for emerging adults with disabilities (EADs) who face additional barriers in accessing supports and information regarding adult opportunities. This qualitative study investigated the experiences of transitioning to adulthood, and the role of a person-directed facilitation service, for EADs and their families.

Methods

Fourteen participants were recruited through purposeful and convenience sampling. Data collection procedures consisted of background questionnaires and one-on-one semi-structured interviews which were then thematically analyzed. Field notes, member checks and triangulation were used throughout the analysis process …

More Than Just A Rapper: Mainstream And Alternative Media’S Depiction Of Nipsey Hussle, Jonathan Hazlewood

Theses and Dissertations (Comprehensive)

Mainstream and alternative media depict individuals differently from one another. In stories covering African American rappers and homicide victims, mainstream and alternative stories use images, phrases, and people to portray certain ideas to their audience. In terms of mainstream news outlets, stories associate criminality onto African American homicide victims and rappers through labeling them as brutes, focusing on the crimes they commit, and highlighting criminal associations (Aquil, 2018; Cochran, 2015; Dukes & Gaither 2018; Wright & Washington, 2019). While alternative outlets have offered sympathetic and well-rounded representations that depict the life, personal accomplishments, and good deeds of an African American …

Examining The Longer-Term Impact Of A Home-Visiting Intervention Program On The School Readiness Skills Of English Language Learners In Kindergarten, Michelle Mccann

Theses and Dissertations (Comprehensive)

Young English Language Learners (ELL) present with varied profiles in their language and literacy development with parental involvement promoting development. The Home Instruction for Parents and Preschool Youngsters Program (HIPPY) is a free home-visiting intervention designed to empower parents to be their child’s first teacher. The current study examined the effectiveness of the HIPPY program on language, reading, and social/emotional skills of kindergarten aged ELLs. The HIPPY group was compared to an English as a first language group (EL1) and a control group of ELL students who did not participate in HIPPY (ESL). Participants were assessed at two time points, …

Reconstructing Hydrologic Conditions And Metals Supplied By The Peace River To The Peace-Athabasca Delta, Jelle André Faber

Theses and Dissertations (Comprehensive)

The Peace-Athabasca Delta (PAD) in northern Alberta, Canada, is recognized internationally for its ecological, historical, and cultural significance. The delta is mostly within Wood Buffalo National Park, a UNESCO World Heritage Site, and is a Ramsar Wetland of International Importance. The construction of the WAC Bennett Dam (1967) and the Site C Dam (ongoing, 2024) on the Peace River, and expansion of the Alberta Oil Sands industry along the Athabasca River have raised concerns over water quantity and quality in the delta. When industry operations began, effective monitoring had not been implemented. Consequently, pre-industrial reference conditions are unknown and can …

Effects Of An Acute Session Of High- Vs Low-Load Resistance Training Exercise On Energy Balance, Daniel Grisebach, Derek Pd Bornath, Abigail A. Broad, Seth F. Mccarthy, Tom J. Hazell

Theses and Dissertations (Comprehensive)

This study examined the effect of an acute session of low-load high-volume resistance training versus a more traditional high-load low-volume session on energy balance (EB). Five recreationally active males (age: 24±3 y; BMI: 25.8±1.5 kgm^-2) completed three different sessions: 1) high-load (90% 1RM); 2) low-load (30% 1RM); and 3) CTRL (no exercise). Gas exchange (V̇O₂), blood lactate, and subjective appetite perceptions were measured before each session, as well as at 0, 1, and 2 h post-exercise. Delayed onset muscle soreness (DOMS) in the quadriceps, pectorals, hamstrings, deltoids, and latissimus dorsi was measured at 24 and 48 …

Social Transition, Coming Out, And Challenging Transnormativity: Non-Binary Experiences In Healthcare, Drew Burchell

Theses and Dissertations (Comprehensive)

Transgender and non-binary individuals are highly stigmatized in North America, and this has staggering adverse effects on their physical and mental health. This stigma is structured and driven by cisnormativity and transnormativity, ubiquitous sets of social rules that determine “right” and “wrong” ways to do gender. Non-binary people experience excess stigma from cisgender (i.e. not transgender) people for “deviating” from the rules, but also from within the transgender community for not adhering to medical and binary definitions of transness. Specifically, non-binary people may choose not to transition medically, but very little research has been done on this. A sample of …

Navigating Islands’ Political Geographies: The Case Of The 'Maduro Migrations' From Venezuela To Trinidad And Tobago, Shiva Mohan

Theses and Dissertations (Comprehensive)

Grounded in critical geopolitics and feminist political geography, this dissertation undertakes a critical examination of Trinidad and Tobago’s (T&T) responses to the inflow of Venezuelans from the “Maduro migrations” since 2015. This massive displacement was triggered by conditions of economic, political and humanitarian crisis on the Venezuelan mainland. The dissertation’s central argument is that T&T’s responses are strategic exercises in defence of its sovereignty, launched through the conscious use of its island-geographies, with a view to rejecting external dictates in its domestic affairs. The island’s responses are examined through three interrelated, but scalarly disparate foci: regional and hemispheric geopolitical influences …

Flipping The Exercise Narrative: An Exploration Of Middle-Aged Adults’ Lived Experiences After Making A New Year’S Resolution To Exercise, David Mcilwraith

Theses and Dissertations (Comprehensive)

Abstract

Objective

The benefits of consistent exercise in the middle-aged adult (44 to 64 years) population has been well documented in existing literature; exercise can delay the onset and progression of a wide variety of chronic diseases such as diabetes, hypertension, osteoporosis, cardiovascular disease and, more generally, premature mortality (Dietz et al., 2016; Thornton et al., 2016; Waschki et al., 2015). Despite increased societal awareness surrounding the importance of exercise in relation to long-term health and longevity, middle-aged adults remain largely inactive. Additionally, there have been few studies that have used a qualitative methodology to give middle-aged adults an active …

Asset Pricing Under Randomized Solvable Diffusions, Hiromichi Kato

Theses and Dissertations (Comprehensive)

By employing a randomization procedure on the geometric Brownian motion (GBM) model, we construct our new pricing models with stochastic volatility exhibiting symmetric smiles in the log-forward moneyness, and admitting simple closed-form analytical expressions for European-style option prices. We assume that there are no infinitesimal correlations between the underlying asset prices and their volatility, and the integrated squared volatility processes are random variables with well-known probability density functions. Under some regularity conditions, closed-form expressions are obtained by taking the expectation of option prices under diffusion models over the integrated squared volatility process, which relate to the Bayesian framework in the …

Exploring The Relationship Between Gender, Race, And Space, And Toronto Community Housing Policy, Anita Rachel Ewan

Theses and Dissertations (Comprehensive)

This dissertation presents the racial-gendered lived experiences of Black women living in Toronto Community Housing (TCH; subsidized housing). This research found that Black women and their families are disproportionately faced with challenges due to barriers caused by housing policy and procedures that also affect the overall development and wellbeing of their children. It also highlights the ways in which Black women continue to thrive and survive in the face of detrimental and derelict living conditions; accomplished through community development and support initiatives, and fostering strong communities.

This is a qualitative research project that includes an art-based method. Utilizing a feminist …

Preventing Child Sexual Abuse: Understanding The Phenomenon Of Adults Who Are Sexually Attracted To Children, Heather Horn

Theses and Dissertations (Comprehensive)

Title: Preventing Child Sexual Abuse: Understanding the Phenomenon of Adults Who Are Sexually Attracted to Children

Purpose: The goal of this research is to understand the phenomenon of adult sexual attraction to children through a prevention lens, from perspectives of those who are sexually attracted to children. Gaining direct experiences from those who live with this problem every day may provide insight into perceptions, beliefs, risks and prevention strategies for this population.

Methods: This study utilizes a mixed methods approach in three phases. With permission from the founders of the website called Virtuous Pedophiles, the members of this peer support …

Environmental Goal Misalignment Between Logistics Service Providers And Shippers, S.M. Mehdi Jourabchi

Theses and Dissertations (Comprehensive)

The ongoing debate about who, ultimately, should pay for greening the transportation industry has exposed a gap (i.e. misalignment) between logistics companies and their clients (shippers). This thesis examines this gap in detail.

Study 1 utilizes conceptual theory building to discuss the conditions under which closer environmental collaboration between logistics service provider (LSP) and shipper can be realized within the supply chain. Our theoretical framework discusses the misalignment of LSPs’ and shippers’ incentives regarding green initiatives. Our conceptual framework aims to address the general dependency of LSPs on shippers and to assess whether and when it can be converted …

Victimized And Criminalized Black Women’S Experiences With The Police In The Context Of Intimate Partner Violence, Patrina Duhaney

Theses and Dissertations (Comprehensive)

This qualitative, multi-manuscript dissertation examines the experiences of Black women who live in the Greater Toronto Area and other southwestern Ontario regions who have experienced intimate partner violence (IPV), some of whom were also charged with an IPV-related offence. Semi-structured interviews were conducted with 25 Black women to better understand the meanings they attach to their experiences. Critical race feminism (CRF) was employed to help conceptualize women’s narratives. In addition, the dissertation includes a review of the relevant literature, the methodology that was utilized for the study followed by three self-contained manuscripts. The purpose of the first manuscript is to …

Exploring Upper Limb Sequence Behaviours In Egocentric And Allocentric Reference Frames, Robyn Brooke Grunberg

Theses and Dissertations (Comprehensive)

Voluntary behaviours, such as reaching, are essential for manipulating and exploring our environment. The current body of literature, however, has predominantly investigated reach behaviours through tasks such as peg-moving, tapping, dotting, and circle drawing. The objective of this study was to investigate the order and direction of reaching behaviours in a sequential tapping task in both an egocentric and an allocentric reference frame. Gaze behaviours were observed to explore intent to reach in the sequential task. Implementing reference frames in an upper limb motor control task might be of clinical importance when exploring rehabilitation techniques post-traumatic brain injury. It was …

Can Zooplankton On The North American Great Plains ‘Keep Up’ With Climate-Driven Salinity Change?, Mariam Elmarsafy

Theses and Dissertations (Comprehensive)

The Great Plains of North America are projected to become more arid as the climate changes over the next century. Salinity levels for lakes in this region are linked to climate, suggesting that lakes will become more saline as the climate becomes drier. One group of organisms that might be affected by increased salinity levels are the zooplankton, aquatic invertebrates that transfer energy from primary producers to macroinvertebrates and fish. Little is known about the ability of zooplankton to adapt to long-term increases in lake salinity levels. For my thesis, I used resurrection ecology to examine how a common zooplankter, …

Investigating Diel, Seasonal, And Interannual Variability Of Dissolved And Particulate Stable Carbon Isotope Values In A Eutrophic Boreal Lake, Rachel Henderson

Theses and Dissertations (Comprehensive)

Lakes are globally significant sources, sinks, and conduits of carbon. Cultural eutrophication of freshwater promotes the growth of phytoplankton blooms, which can transform, respire, and sequester large amounts of carbon. Analysis of stable carbon isotopes is a common tool to study the movement of carbon through the aquatic carbon cycle. The causes of temporal variability in δ¹³C values at different timescales are not well understood, and differ between lakes. In this study, I investigated diel, seasonal, and interannual variability in δ¹³C values of dissolved inorganic carbon (DIC) and particulate organic carbon (POC) in Lake 227, an …

Functional Characterization Of Proteins From A Putative Chondroitin Sulfate A Degrading Operon And The Crystal Structure Of An Exo-N-Acetylgalactosamine-4-Sulfatase From Tannerella Forsythia, Peter Nguyen

Theses and Dissertations (Comprehensive)

Advanced periodontitis has been shown to have strong associations with the residence of a bacterial triad of Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola also known as the red complex. These bacteria were previously thought to be asaccharolytic, making them better suited to survive in deep in periodontal pockets where access to carbohydrates from food is limited. Information gathered from genomic analysis suggested that upregulation of an operon (BFO2285-BFO2295, BFO3043) could confer the capacity for T. forsythia to degrade chondroitin-4-sulfate, the principle glycosaminoglycan of alveolar bone tissue. Bioinformatics analysis suggested the operon was similar to an operon found in Bacteroidetes …

The Role Of Streptococci In Oral Periodontitis: Growth And Disruption Of Yellow Complex Bacteria, Megan Gordon

Theses and Dissertations (Comprehensive)

Periodontitis is described as the inflammation of the periodontium and affects millions of people worldwide. This disease is caused by biofilm growth of certain bacteria on the tooth surface, adjacent to the gum tissue in the oral cavity. There are currently treatments against severe periodontitis, such as oral surgery and use of broad-spectrum antibiotics, but they fail to target the specific bacteria associated with periodontitis. Socransky et al., (1998), identified the preponderance for specific organisms in distinct areas of the subgingival pockets to associate with different bacteria forming consortia and complexes. The yellow complex, containing facultatively anaerobic, Gram positive …

Modeling And Counteracting Exposure Bias In Recommender Systems, Sami Khenissi, Olfa Nasraoui

Faculty and Staff Scholarship

What we discover and see online, and consequently our opinions and decisions, are becoming increasingly affected by automated machine learned predictions. Similarly, the predictive accuracy of learning machines heavily depends on the feedback data that we provide them. This mutual influence can lead to closed-loop interactions that may cause unknown biases which can be exacerbated after several iterations of machine learning predictions and user feedback. Machine-caused biases risk leading to undesirable social effects ranging from polarization to unfairness and filter bubbles. In this paper, we study the bias inherent in widely used recommendation strategies such as matrix factorization. Then we …

Galaxy And Mass Assembly (Gama): Properties And Evolution Of Red Spiral Galaxies, Smriti Mahajan, Kriti Kamal Gupta, Rahul Rana, M. J.I. Brown, S. Phillipps, Joss Bland-Hawthorn, M. N. Bremer, S. Brough, Benne W. Holwerda, A. M. Hopkins, J. Loveday, Kevin Pimbblet, Lingyu Wang

Faculty and Staff Scholarship

We use multiwavelength data from the Galaxy And Mass Assembly (GAMA) survey to explore the cause of red optical colours in nearby (0.002 < z < 0.06) spiral galaxies. We show that the colours of red spiral galaxies are a direct consequence of some environment-related mechanism(s) that has removed dust and gas, leading to a lower star formation rate. We conclude that this process acts on long time-scales (several Gyr) due to a lack of morphological transformation associated with the transition in optical colour. The specific star formation rate (sSFR) and dust-to-stellar mass ratio of red spiral galaxies is found to be statistically lower than blue spiral galaxies. On the other hand, red spirals are on average 0.9 dex more massive, and reside in environments 2.6 times denser than their blue counterparts. We find no evidence of excessive nuclear activity, or higher inclination angles to support these as the major causes for the red optical colours seen in ≳47 per cent of all spirals in our sample. Furthermore, for a small subsample of our spiral galaxies that are detected in H I, we find that the SFR of gas-rich red spiral galaxies is lower by ∼1 dex than their blue counterparts.

A Structural Imperative: Freedom Of Information, The First Amendment, And The Accountability Function Of Expression, A.Jay Wagner

College of Communication Faculty Research and Publications

No abstract provided.

The Chivalrous Bystander: The Role Of Gender-Based Beliefs And Empathy On Bystander Behavior And Perceived Barriers To Intervention, Kristen Yule, Jill C. Hoxmeier, Kevin Petranu, John H. Grych

Psychology Faculty Research and Publications

Despite substantial evidence demonstrating a relation between gender-based beliefs and violence against women, there has been little research examining whether sexist attitudes are related to prosocial bystander behavior. Understanding psychosocial influences on bystanders’ behavior could inform bystander training programs on college campuses, and so the current study examined the unique and joint effects of three gender-based attitudes (rape myth acceptance, hostile sexism, and benevolent sexism) and empathy in predicting bystander behavior and perceived barriers to intervention in situations that undergraduates (N = 500; 70% female; M_age = 18.86 years) had experienced in the prior year. Benevolent sexism was …

Adaptive Functioning In High-Risk Preschoolers: Caregiver Practices Beyond Parental Warmth, Kristen Yule, Christina Murphy, John H. Grych

Psychology Faculty Research and Publications

Objectives: Prior research on caregiving behaviors associated with resilience in children exposed to adversity has focused primarily on broad constructs, such as parental warmth and supportiveness, as protective factors. In an effort to provide more precise analysis of caregiver behaviors related to adaptive functioning in high-risk preschoolers, the present study used a multi-method design to examine the unique and joint relations of specific emotion socialization behaviors and parental warmth with adaptive functioning in preschool-aged children.

Methods: Participants were 124 children aged 3–6 years from Head Start programs and their primary caregiver. Caregivers and teachers reported on preschoolers' functioning across multiple …

Becoming Transfronterizo Collaborators: A Transdisciplinary Framework For Developing Translingual Pedagogies In Wac/Wid, Marcela Hebbard, Yanina Hernández

Writing and Language Studies Faculty Publications

Given that pedagogical approaches that challenge dominant language ideologies are not yet well represented in WAC/WID scholarship, this chapter outlines a transdisciplinary framework for developing translingual pedagogies. The framework is built around the notion of transfronterizo/ a collaborators because before instructors can engage their students in exploring and challenging their views toward language, instructors must first critically interrogate their own. This interrogation must consider the unique political, social, economic, and linguistic exigencies of where an institution is located. The chapter concludes by showing that a transdisciplinary and translingual collaboration that is mutually transformative changes faculty collaborators in how they perceive …

Adherence To A Home Exercise Programme Following A Clinical Programme For Non-Acute Non-Specific Low Back Pain: An Exploratory Study, Judith L'Heureux, Marie-France Coutu, Djamal Berbiche, Christian Larivière

Études primaires

Purpose:Lack of adherence to home exercise programmes is hypothesised to partially explain the modest clinical effects seen in patients with low back pain. This study explored the association between the main biopsychosocial factors and adherence using a theory-driven approach including the fear-avoidance model, the common-sense model and the working alliance concept.

Methods: A repeated measures design was used. During and after an eight-week clinical exercise programme, 48 participants with non-acute and disabling low back pain followed a home exercise programme. Questionnaires assessed home exercise adherence and biopsychosocial factors at baseline, after the eight-week clinical programme and at the six-month follow-up. …

Three-Month Efficacy Of Three Knee Braces In The Treatment Of Medial Knee Osteoarthritis In A Randomized Crossover Trial, Xavier Robert-Lachaine, Yoann Dessery, Étienne L. Belzile, Sylvie Turmel, Philippe Corbeil

Études primaires

Immediate biomechanical and functional effects of knee braces are often reported, however, the duration and type of knee brace treatment for knee osteoarthritis (KOA) remain unclear. The objective was to evaluate usage, comfort, pain, and knee adduction moment (KAM) of three knee braces each worn 3 months by patients. Twenty-four patients with KOA were assigned in a randomized crossover trial a valgus three-point bending system brace (V3P-brace), an unloader brace with valgus and external rotation functions (VER-brace) and a stabilizing brace used after ligament injuries (ACL-brace). Functional questionnaires and gait assessment were carried out before and after each brace wear …

Theoretical Investigation Of The Low Frequency Fundamental Mechanism Of The Objective Occlusion Effect Induced By Bone-Conducted Stimulation, Kevin Carillo, Olivier Doutres, Franck Sgard

Études primaires

The objective occlusion effect induced by bone-conducted stimulation refers to the low frequency acoustic pressure increase that results from occluding the ear canal opening. This phenomenon is commonly interpreted as follows: the bone-conducted sound “leaks” through the earcanal opening and is “trapped” by the occlusion device. This instinctive interpretation misrepresents the fundamental mechanism of the occlusion effect related to the earcanal impedance increase and already highlighted by existing electro-acoustic models. However, these models simplify the earcanal wall vibration (i.e., the origin of the phenomenon) to a volume velocity source which, in the authors' opinion, (i) hinders an exhaustive comprehension of …

Conversations On The Warren Court's Impact On Criminal Justice: In Re Gault At 50, Cara H. Drinan

Scholarly Articles

This Article examines the Supreme Court’s landmark In re Gault decision of 1967, in which the Supreme Court ushered in the “due process era” of juvenile justice in America by determining that juveniles were entitled to the right to counsel and other procedural safeguards during delinquency proceedings. But this Article continues with a critical focus on the impact of the decision today, examining a dichotomy between what was declared a “revolution in children’s rights,” and how youth in the criminal justice system still have not seen the extent of constitutional protections declared necessary by Gault. Arguing that Gault …