Graduate Theses & Dissertations

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Executive Function, Emotion Regulation, and Social Problem Solving, in Adolescence and Early Adulthood
Research to date on social problem solving typically focuses on elementary school aged children. However, adolescents and young adults may experience more novel and emotionally complex social conflicts that require different skills to navigate them successfully. Previous research has highlighted executive function (EF) and emotion regulation as possible skills that help with social problem solving. The current study examined the potential relation between EF, emotion regulation, and social problem solving. The sample consisted of 174 participants with a mean age of 19.60 years. Results showed that the shifting component of EF was associated with being able to take different perspectives when coming up with a solution for a social conflict involving a romantic partner. Additionally, emotion regulation was associate with perspective taking in the overall social problem solving process with a romantic partner. These results suggest that both EF and emotion regulation are involved in the ability to take different perspectives during a social conflict in this age range. Author Keywords: Emotion Regulation, Executive Function, Social Problem Solving
“A City is Not a Place of Origins”
This thesis explores the work of Black queer authors who write and reproduce cities in their texts. James Baldwin and Dionne Brand create knowable and readable spaces of the cities in which they write. By studying the work of these two authors, this thesis seeks to understand how Black queer people navigate city spaces, and how Black queer authors create a literary imaginary about the cities in which their novels are set. Thus, the cities of New York and Toronto become knowable sites through the novels of Dionne Brand and James Baldwin. Using Black queer theory, Black diaspora theory, and Black literary theory, this thesis engages with the novels, essays, and interviews of James Baldwin and Dionne Brand to determine that urban spaces are both liberatory and traumatic for Black queer people. Author Keywords: Baldwin, Black Queer Studies, Black Women, Brand, Diaspora Studies, Lesbian
Socio-Ecology and the Sacred
Within the complex socio-ecological systems of South and Southeast Asia, ancient sacred natural sites were created by, and imbued with, cultural and ideological values. These landscapes are liminal spaces or threshold environments between cultivated areas and wilder spaces; the practice of creating and maintaining them persists from ancient to modern times. This thesis examines sacred natural sites in three early state formations from 800 – 1400 CE: the Khmer (Cambodia), the Sinhalese (Sri Lanka) and the Chola (South India), why they persisted over time, and what significance they held. Several ancient sacred natural sites are active parts of societies today, and the ones chosen for this study span several categories: mountains, rivers, forests/groves, and caves. Using the paradigm of entanglement theory in a comparative context, this thesis analyzes sacred natural sites acting as key socio-ecological nodes enmeshed in complex dependent relationships within the landscapes of the South and Southeast Asia. Author Keywords: Comparative study, Entanglement theory, Sacred natural sites, Socio-ecological systems, South Asia, Tropical Societies
Assessing the Clinical Usefulness of Three Tablet-Based Visuomotor Tasks to Evaluate Closed Head Injury
Evidence suggests that visuomotor system behaviour may be more sensitive to the prolonged effects of mild brain injuries than neuropsychological tests. We evaluated whether participants with a mild closed head injury (CHI) would show lingering visuomotor deficits, but not cognitive deficits, up to three years post-injury compared to participants with an orthopaedic injury and healthy controls. All three groups completed a tablet-based visuomotor assessment tool and a brief neuropsychological test battery. The CHI participants scored comparable to the control groups on the neuropsychological tests, but when assessed for visuomotor function requiring adjustment to a changing stimulus, CHI participants showed poorer performance than the control groups. Combined, these findings add to the evidence that CHI can lead to persistent visuomotor deficits that extend beyond those of neuropsychological tests. Therefore, visuomotor assessment should be included in brain injury and recovery evaluation, and this can be accomplished easily using tablet-based tasks. Author Keywords: closed head injury, neuropsychological assessment, recovery, tablet, traumatic brain injury, visuomotor
UV-Curable hybrid sol-gel materials
This thesis describes the synthesis, application and evaluation of a UV crosslinked 3-methacryloxypropyltrimethoxysilane-derived coating formulation. This is a two-component sol-gel system with 3-methacryloxypropyltrimethoxysilane (MaPTMS) and tetraethoxysilane (TEOS). Herein we show that if we change the co-solvent required for solubilizing MaPTMS from the more common methanol and ethanol to isopropanol we change the rate of hydrolysis from days or weeks to minutes. With the assistance of 2D 29Si-NMR we demonstrate that the system undergoes extensive condensation in twenty minutes. Using standard UV irradiation, the material can be extensively UV crosslinked with 70% of the methacryloxy functionality being consumed in 5 minutes upon irradiation in the presence of a photo-initiator. When this material is used to coat low carbon steel and immersed in an accelerated corrosion solution (dilute Harrison’s solution); this material affords low carbon steel 25 hours of protection when crosslinked and 17 hours of protection when uncrosslinked. The material was then used to encapsulate polyaniline (PANI), an intrinsic conductive polymer used in the corrosion protection of metal substrates. PANI has been encapsulated previously in sol-gel material, but due to the pH dependence of the solubility of PANI, it can not be encapsulated in more commonly chemically crosslinked sol-gel. As our system is UV crosslinked rather than chemically crosslinked, we were able to successfully demonstrate the inclusion of PANI into our coating system. Finally, this thesis includes a thorough computational investigation into the structure and band gap of PANI. Through the analysis of the band gap it was shown that the structure of the polymer commonly displayed in literature is not the correct structure of the polymer. Our results suggest that when PANI is made electrochemically, the oligomer contains two quinoid units next to one another instead of the more usually represented regularly alternating benzoid and quinoid units. The results also suggest that when PANI is made using the oxidant ammonium persulfate, the polymer most likely contains a Michael adduct structure somewhere in the polymer chain which dominates PANI’s electronic properties. Author Keywords: 3-Methacryloxypropyltrimethoxysilane, Computational Chemistry , Corrosion , Polyaniline, Tetraethoxysilane
Modelling Depressive Symptoms in Emerging Adulthood
Depression during the transition into adulthood is a growing mental health concern, with overwhelming evidence linking the developmental risk for depressive symptoms with maternal depression. In addition, there is a lack of research on the protective role of socioemotional competencies in this context. This study examines independent and joint effects of maternal depression and trait emotional intelligence (TEI) on the longitudinal trajectory of depressive symptoms during emerging adulthood. A series of latent growth models was applied to three biennial cycles of data from a nationally representative sample (N=933) from the Canadian National Longitudinal Survey of Children and Youth. We assessed the trajectory of self-reported depressive symptoms from age 20 to 24 years, as well as whether it was moderated by maternal depression at age 10 to 11 and TEI at age 20, separately by gender. The results indicated that mean levels of depression declined during the emerging adulthood in females, but remained relatively stable in males. Maternal depressive symptoms significantly positively predicted depressive symptoms across the entire emerging adulthood in females, but only at age 20-21 for males. In addition, likelihood of developing depressive symptoms was attenuated by higher global TEI in both females and males, and additionally by higher interpersonal skills in males. Our findings suggest that interventions for depressive symptoms in emerging adulthood should consider development of socioemotional competencies. Author Keywords: Depression, Depressive Symptoms, Emerging Adulthood, Intergenerational Risk, Longitudinal, Trait Emotional Intelligence
Rendering New Insights
The Upper Paleolithic sequence at Vale Boi, Portugal, represents an early example of resource intensification, for which evidence of both diet diversification and intensified utilization of faunal remains has been published. The current research project tests the hypothesis that bone grease rendering was occurring throughout the Upper Paleolithic sequence at Vale Boi. As there are various issues of equifinality which makes the identification of bone grease rendering challenging, data from experimental bone grease rendering studies were utilized. The resulting analysis demonstrated limited evidence in support of a sustained use of bone grease rendering during the Upper Paleolithic sequence. However, evidence suggested that alternate bone processing activities and discard behaviours may have been occurring at the site. This suggests that the dietary behaviours of the foragers at Vale Boi were more varied than previously hypothesized. Author Keywords: Archaeozoology, Bone Grease Rendering, Faunal Analysis, Iberia, Resource Intensification, Upper Paleolithic
Thinking High When Feeling Shy
Social anxiety often co-occurs with substance use disorders – various psychological variables, contextual factors, and implicit cognitions may help explain their relationship. This thesis examined whether social anxiety and psychological variables (jointly and independently) helped predict substance use and related problems. It also explored whether social anxiety group membership helped predict implicit cannabis-sedation associations and substance use desirability. A sample of undergraduate student volunteers (N = 65) completed a computer task, questionnaires with anxiety-provoking vignettes, and online questionnaires. Results indicate that fear of negative evaluation and anxiety sensitivity are important predictors of alcohol and cannabis (respectively) use and problems. Social anxiety group was related to increased cannabis desirability in performance contexts. No significant implicit cannabis-sedation associations were identified. Our findings highlight the importance of certain variables in social anxiety and substance use relationships, and considering contextual factors when assessing substance desirability. It also provides preliminary evidence of a novel implicit cannabis-sedation measure. Author Keywords: Coping, Emotion, Implicit Cognition, Social Anxiety, Substance Use
Composite Frankenstein
This thesis explores Frankenstein’s popular culture narrative, contrasting recent Frankenstein texts with the content of Mary Shelley’s classic novel and James Whale’s iconic films Frankenstein (1931) and The Bride of Frankenstein (1935). The research investigates how Frankenstein’s legacy of adaptations function intertextually to influence both the production and the consumption of Frankenstein texts, referring to this complicated and contradictory intertextual web as “the Composite Frankenstein.” This thesis present the Composite Frankenstein as a hermeneutic by which to view Frankenstein’s collaborative and cumulative identity in popular culture, drawing on the work of other scholars on adaptation and intertextuality. Sarah Milner investigates the context of the key Frankenstein texts, the novel and the 1931 film; this research’s goal is to destabilize the perception of authorship as an individual’s mode of production and to investigate the various social processes that influence text creation and consumption. Author Keywords: adaptation, authorship, Frankenstein, intertextuality, James Whale, Mary Shelley
Dennis Lee's Testament
The future-poetry of Dennis Lee published in Testament (2012) is the culmination of four cycles of creativity in his lifetime, each seeking a Real beyond the nihilism of technological modernity. Ultimately, Lee wagers the role of the poet and the future of poetic language on Earth on a non-modern that risks entangling the poet who enters void and embodies its meaninglessness. CHAPTER ONE: To approach this wager, the thesis first identifies the sources in philosophy of a Canadian Romantic modernism embraced by George Grant in collegial exchanges with Dennis Lee during the period of Civil Elegies (1972). Grant elicits a politics out of Nietzsche; Lee extends a poetics out of classical experimental modernism, made intelligible in this thesis by Mallarmé’s “cadence” or “rhythm” of things in nothingness and by Beckett’s word-play at the impasse of naming. CHAPTER TWO: To think beyond the mastery of the world by technique is to encounter a choice between silence as assumed by Grant and nonsense as explored by Lee during the period of Alligator Pie (1974) and The Gods (1979). CHAPTER THREE: The example of Paul Celan and his revisiting of Hölderlin provokes Lee to attend upon cadence at the level of the discrete word, an experiment with the dissolution of language and selfhood anticipated in the period of Riffs (1993) and Nightwatch (1996). Here, the undermusic felt to belong to the life-world (Lebenswelt) impacts as affect, in contrast to Celan’s alienated death-walk. CHAPTER FOUR: In the spirit of “post-internet poetry,” and by means of the spontaneous polyphonic scoring of cadence, Lee transforms the modernist impasse at the void into a further contradiction, the living of which may allow the poet access to a non-modern, but at a cost: the loss of poetry to incomprehension and insignificance, the reduction of the poet to a medium of the void, the dissolving of structure into materialities colliding in chance. Author Keywords: Dennis Lee, George Grant, Nonsense, Paul Celan, Technological Modernity, Void
Executive Function as a Predictor of Emotional, Behavioural, and Social Competence Problems in Children with Epilepsy
The study aimed to examine the association between different components of executive function (EF) and emotional, behavioural, and social competence problems (EBSP) in children with epilepsy. Although there is evidence of an association between EBSP and EF in typically developing children, little research has examined this relation in children with epilepsy. The sample comprised of 42 children with epilepsy, aged 6.0 to 18.1 years old. Results showed that EBSP were associated with EF in these children; however, different components of EF were related to different EBSP. Shifting was a significant predictor of emotional, behavioural, and social competence problems in children with epilepsy, whereas inhibition was a significant predictor of behavioural problems. This suggests that children with epilepsy, with different EF profiles may be at-risk for developing different types of problems. These results may aid researchers and clinicians with the development of new techniques to identify and treat children with EBSP. Author Keywords: behavioural problems, emotional problems, epilepsy, executive function, social competence
silicon sol-gel approach to the development of forensic blood substitutes
The research and development of synthetic blood substitutes is a reported need within the forensic community. This work contributes to the growing body of knowledge in bloodstain pattern analysis by offering a materials science approach to designing, producing and testing synthetic forensic blood substitutes. A key deliverable from this research is the creation of a robust silicon-based material using the solution-gelation technique that has been validated for controlled passive drip and spatter simulation. The work investigates the physical properties (viscosity, surface tension and density) of forensic blood substitute formulations and describes the similarity in the spreading dynamics of the optimized material to whole human blood. It then explores how blood and other fluids behave in impact simulation using high-speed video analysis and supports the use of the optimized material for spatter simulation. Finally, the work highlights the practical value of the material as an educational tool for both basic and advanced bloodstain experimentation and training. Author Keywords: bloodstain pattern analysis, forensic blood substitutes, high-speed video analysis, silicon solution-gelation chemistry, thin-film deposition, training and education

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Format: 2022/01/26