Socially Responsible Investment In A Changing World, Desheng Wu

Electronic Thesis and Dissertation Repository

Socially responsible investment funds make up a growing segment of the investment world. This work considers the impact of including SRI in an investor portfolio both normally and during crisis times. Regimes are identified using Markov switching models. This study is based on return data of four indices, namely, the MSCI World Index, S&P 500, Eurostoxx 50, and the socially responsible index - Advanced Sustainable Performance Index (ASPI). The approaches used are portfolio optimization, GARCH and Markov switching models. Our work shows that a socially responsible index is a good asset to keep in a portfolio. Our simulation results suggest …

Creating And Hosting Student-Run Research Journals: A Case Study, Adrian K. Ho

Western Libraries Publications

This case study aims to examine an academic library’s roles in facilitating the creation and hosting of open access student-run research journals. In addition to providing an online platform to host the journals, the library acquaints students with scholarly publishing, assists them in securing various resources available on campus, and offers support for content management. There are challenges and opportunities for the library as it undertakes the responsibility of hosting student journals. The article concludes with a discussion of possible topics for future research.

Atpase Regulation In The Maltose Transporter, Alister D. Gould

Electronic Thesis and Dissertation Repository

This thesis investigates the mechanism of activity-coupling in the maltose transporter of Escherichia coli (MalFGK₂); the way ATP hydrolysis is prevented in the absence of maltose, and then enabled to drive maltose transport. Like other ATP binding cassette importers, MalFGK₂ requires substrate to be presented by a peripheral substrate-binding protein, in this case the maltose binding protein (MBP). MBP predominantly adopts an ‘open’ resting state, but undergoes a rotation of its two domains to a ‘closed’ state after maltose binding. In the closed state MBP is able to activate MalFGK₂ to stimulate ATP hydrolysis and maltose …

Motherhood And Childbirth Experiences Among Newcomer Women In Canada: A Critical Ethnographic Study, Fatmeh Ahmad Alzoubi

Electronic Thesis and Dissertation Repository

Statement of the Problem: Motherhood and childbirth are very sensitive experiences and have a strong impact on family functioning, social identity, and cohesiveness. Although motherhood and childbirth have been discussed extensively in the scholarly and popular literature, much of this work has been conducted from a North American perspective, with little attention to how motherhood and childbirth are experienced by newcomer women from diverse racial and cultural backgrounds.

Methodology and Theoretical Orientation: A critical ethnographic study using in-depth interviews with 16 newcomer women was utilized to explore newcomer women’s experiences and understandings of motherhood and childbirth in the aftermath of …

Septal Modulation Of The Hippocampus, Siew Kian Tai

Electronic Thesis and Dissertation Repository

The medial septum (MS) is the main source of acetylcholine to the hippocampus, a structure involved in memory and Alzheimer’s disease (AD). Learning and memory involve long-term changes in synaptic strengths, and are suggested to be facilitated by a brain wave, theta rhythm in the hippocampus. Since medial septal neurons influence hippocampal neural activity, lesion of two neuronal populations in the MS, cholinergic and GABAergic, was performed by intraseptal infusion of 192 IgG-saporin and orexin-saporin, respectively. I hypothesized that 1) activation of cholinergic cells by vestibular stimulation induces an atropine-sensitive theta rhythm, modulates synaptic transmission and enhances long-term potentiation (LTP), …

The Effects Of Leg Length Discrepancy On Gait And Balance, Colin E. Dombroski

Electronic Thesis and Dissertation Repository

Leg length discrepancy is a condition shown to affect 25-70% of the general population. The ubiquitous nature of leg length discrepancy can prove frustrating to many clinicians, particularly due to lack of consensus surrounding the amount of discrepancy that necessitates treatment.

The present research is intended to address the uncertainty surrounding diagnostic and treatment thresholds, through three related studies. In the first study, leg length discrepancy was manipulated in a sample of 15 healthy young adults, using a novel heel-to-toe lift (creating discrepancies of 5mm, 20mm, and 30mm), and the effects of this new discrepancy was observed on the spatial-temporal …

Nanoplasmonic Sensors Based On Periodic Arrays Of Gold Nanoparticles, Hao Jiang

Electronic Thesis and Dissertation Repository

Nanoplasmonic sensors use the localized surface plasmon resonance (LSPR) of metal nanostructures to sense the refractive index change in a surface-bound layer caused by biomolecular interactions or changing chemical environment. In this thesis, four types of sensor configurations based on gold nanoparticle arrays are thoroughly investigated.

The first configuration is a periodic array of gold nanoparticles excited by the evanescent field of an optical waveguide mode. Since light carried by a waveguide mode propagates along the same plane of the periodicities, the coupling of nanoparticles are strongly affected by the photonic crystal lattice. This configuration is investigated both in simulations …

Stable Isotope Analyses Of Bat Fur: Applications For Investigating North American Bat Migration, Erin E. Fraser

Electronic Thesis and Dissertation Repository

Many aspects of North American bat migration are not well documented. Stable isotope analyses of animal tissues can elucidate migratory origin, but this technique has not been widely applied to bats. This dissertation i) uses fur stable isotope analyses to investigate North American bat migration and ii) highlights some of the strengths and weaknesses of this analytical technique when applied to bat systems. I conducted stable hydrogen, carbon, and nitrogen isotope analyses on fur from five bat species.

I documented δD_fur heterogeneity in summer resident populations of Myotis lucifugus, Lasiurus borealis, Lasiurus cinereus, and Lasionycteris noctivagans. Stable …

Molecular Dynamics Studies Of Interactions Of Phospholipid Membranes With Dehydroergosterol And Penetrating Peptides, Amir Mohsen Pourmousa Abkenar

Electronic Thesis and Dissertation Repository

We have performed molecular modeling of membrane and peptide systems by employing the classical molecular dynamics method and force field parameterizations. In this thesis, our main interest is the interaction of sterols as well as peptides with membranes. The thesis consists of three related projects. The first project focuses on cholesterol (CHOL) and dehydroergosterol (DHE) interacting with palmitoyl-oleoyl phosphatidylcholine (POPC) lipid bilayers. We study the effects of both sterols on the bilayer and compare them with each other. We first study the condensing and ordering effect of these sterols. Then, we study their orientations within the bilayer and relate them …

Study Of Malaria Transmission Dynamics By Mathematical Models, Yanyu Xiao

Electronic Thesis and Dissertation Repository

This Ph.D thesis focuses on modeling transmission and dispersal of one of the most common infectious disease, Malaria. Firstly, an integro-differential equation system is derived, based on the classical Ross-Macdonald model, toemphasize the impacts of latencies on disease dynamics. The novelty lies in the fact that different distributionfunctions are used to describe the variance of individual latencies. The theoretical results of this projectindicate that latencies reduce the basic reproduction number. Secondly, a patch model is derived to examine how travels of human beings affects the transmission and spread of Malaria. Due to coexistence of latency and dispersal, the model turns …

Transition Metal Complexes With Reactive Trimethylsilylchalcogenolate Ligands: Precursors For The Preparation Of Ternary Nanoclusters, Chhatra Bahadur Khadka

Electronic Thesis and Dissertation Repository

The Co²⁺ and Mn²⁺ complexes (N,N´-tmeda)Co(ESiMe₃)₂ (E = S, 1a; E = Se, 1b), (3,5-Me₂C₅H₃N)₂Co(ESiMe₃)₂ (E = S, 2a; E = Se, 2b), [Li(N,N´-tmeda)]₂[(N,N´-tmeda)Mn₅(μ-ESiMe₃)₂(ESiMe₃)₄(μ₄-E)(μ₃-E)₂] (E = S, 3a; E = Se, 3b), [Li(N,N´-tmeda)]₂[Mn(SSiMe₃)₄] (4), [Li(N,N´-tmeda)]4[Mn₄(SeSiMe₃)₄(μ_{3 …}

Effects Of Internals Configurations On Heat Transfer And Hydrodynamics In Bubble Columns - With And Without Solid Particles, Anil Kumar Jhawar

Electronic Thesis and Dissertation Repository

Internals of different types are required in a number of industrial applications of bubble columns to achieve the desired mixing or to remove the heat of reaction to maintain desired temperature and isothermal conditions of operation. Some of these applications include Fischer-Tropsch synthesis, methanol synthesis, and production of dimethyl ether (DME). The presence of internals however can alter the column hydrodynamics and mixing patterns which could influence reactor performance. A fast response probe capable of capturing bubble dynamics, as well as detecting flow direction is used to study the effect of internals on local heat transfer and column hydrodynamics in …

Thermal Plume Transport From Sand And Gravel Pits Potential Thermal Impacts On Cool-Water Streams, Jeffrey M. Markle

Electronic Thesis and Dissertation Repository

Potential thermal impacts from below-water-table aggregate extraction on a cool-water stream were investigated by monitoring thermal plumes, moving through an unconfined glacial-outwash aquifer, and assessing their subsurface persistence. The growing demand for aggregate and increased pressure to pursue extraction in ecologically sensitive areas has driven the need for this work. During a 10-year period, ground and surface water temperatures were measured monthly, including two periods of intensive monitoring (22 months and 2.5 years). The aquifer hydraulic conductivity (K) is quantified at the laboratory and field scale. The mean K’s from the multi-scale tests depend on test-support volume and …

Understanding The Roles Of Physiotherapists Within Ontario Primary Health Care Teams: A Mixed Methods Inquiry, Sinead P. Dufour

Electronic Thesis and Dissertation Repository

A mixed methods program of research was undertaken in order to better understand the roles of physiotherapists within Ontario primary health care (PHC) teams. A profile of Ontario PHC teams (Family Health Teams and Community Health Centres) was generated to determine the complement of providers and provision of health programming within each PHC team. This first study provided an important contextual backdrop as well as a means to purposefully sample participants for the two following studies. The second study used qualitative descriptive method to explore the perceptions of family physicians and nurse practitioners related to the inclusion of physiotherapists (PTs) …

A Critical Analysis Of The Factors That Promote And Support Leadership And Advocacy For People With Lived Experience With Mental Health Problems Or Illness., Kathryn L. Storey

Electronic Thesis and Dissertation Repository

ABSTRACT

Our ways of thinking and acting are complex. Personal and social influences mediate who we are and what we believe. This is particularly true for people who have personal lived experience with mental health problems or illnesses. While mental illness can result in challenges with living, ironically, the challenges increase when people use medical or clinical services. Many people who speak out about their experience describe themselves as “survivors”. Yet, these same experiences with the care system effectively inform and evoke leadership and advocacy.

A growing number of survivors recognize that it is important to use their experience to …

Planning, Implementation, And Formative Evaluation Of A Food Literacy Program, Heather M. Thomas

Electronic Thesis and Dissertation Repository

The overall purpose of this dissertation was to examine the planning, implementation, and formative evaluation of a community-based food literacy program for youth. Article 1 provided a summary of the community-based cooking program for at-risk youth. Objectives included the provision of applied food literacy and cooking skills education augmented with fieldtrips to local farms. Eight at-risk youth (five girls and three boys, mean age = 14.6) completed the intervention. Post intervention, five of eight participants completed in-depth interviews about their experiences.

Article 2 was a formative evaluation of the cooking program focused on gaining an understanding of participants’ (i.e., at-risk …

Students' Experiences Within A Community-Based Orchestral Music Education Program: A Phenomenological Exploration, Leigh C. Walter

Electronic Thesis and Dissertation Repository

Phenomenology was used to explore eighteen students’ experiences of participating within a community-based orchestral music education program with the aim of gaining understanding of experiences that may enter into the continuance of musical instruction. Interpretive analysis of audiotapes of in-depth interviews revealed three themes which together captured students’ holistic experience of being in a community-based orchestral music education program: (1) contextual factors facilitating/impeding progress; (2) enacting progression; and (3) experiencing the process of participating in the program. Findings revealed the importance of instructor feedback, students’ perceived necessity of striving, and students’ subjective feelings of participating in the program to student …

Quantum Coherence And Interference In Metallic Photonic Crystals And Hybrid Systems, Ali Hatef

Electronic Thesis and Dissertation Repository

In the first part of the thesis, we study the absorption coefficient of quantum dots doped in metallic photonic crystals under different circumferences. We study numerically the temporal evolution of the absorption coefficient profile where a probe field is applied to monitor the absorption process in two cases, when quantum dots are embedded lightly and densely. We also studied the effect of a changing plasma frequency on the absorption profile of quantum dots two possible field configurations. We show that the changes in plasma energy can take the system from the absorption region to the transparent and gain region.

As …

Acoustic Signal Encoding In Children With Auditory Processing Disorders, Chris M. Allan

Electronic Thesis and Dissertation Repository

Auditory perception has been shown to be a problem for some children with diagnosed learning, language, reading, or attention disorders. Evaluation of discrimination abilities, as part of an auditory processing test battery, has been recommended but few commercial tools are available for the audiologist to accomplish this task. Few studies have investigated signal feature encoding with children at risk for an auditory processing disorder (APD). The purpose of this project was to investigate signal encoding abilities in children suspected of having APD.

School-aged children, part of a clinical population referred for assessment of their auditory processing skills, participated in the …

Understanding The Link Between Transnationalism And Integration, Ann H. Kim

Migration and Ethnic Relations Colloquium Series

No abstract provided.

"Aren't They Keen?" Early Children's Food Advertising And The Emergence Of The Brand-Loyal Child Consumer, Kyle R. Asquith

Electronic Thesis and Dissertation Repository

This dissertation examines how American food advertisers approached children in the early twentieth century and how this conceptualization changed during a critical juncture that lasted from approximately 1928 until 1945. Prior to the late 1920s, national advertisers acknowledged children as “consumers” (that is to say, eaters) of food and celebrated their idyllic innocence; however, advertisers rarely addressed children as active participants in the consumer marketplace. This perspective changed due to new commercial media platforms, such as radio and comic strips, as well as changing attitudes within the business community. By the 1930s, food advertisers began to communicate with children as …

Shifting Notions Of Citizenship In The Netherlands: Exploring Cultural Citizenship And The Politics Of Belonging Through Neighbourhood Spaces In Rotterdam, Jennifer Long

Electronic Thesis and Dissertation Repository

Notions of citizenship in the Netherlands are increasingly shifting away from liberal models of civic citizenship that, in theory, promote diversity, pluralism and, multicultural understandings of citizenship and are moving, instead, towards a mono-cultural and assimilationist understanding of national identity and belonging. This trend, known in the literature as the ‘culturalization of citizenship’ constitutes the primary topic of this project.

In this dissertation, I argue that official and populist discourses concerning non-western Muslim immigrants in Dutch society today work to inscribe difference onto “foreign” (“allochthonous”) residents of the Netherlands while upholding an idealized notion of “Dutch identity”. My research revealed …

Bifurcations And Stability In Models Of Infectious Diseases, Bernard S. Chan

Electronic Thesis and Dissertation Repository

This work is concerned with bifurcation and stability in models related to various aspects of infections diseases.

First, we study the dynamics of a mathematical model on primary and secondary cytotoxic T-lymphocyte responses to viral infections by Wodarz et al. This model has three equilibria and the stability criteria of them are discussed. We analytically show that periodic solutions may arise from the third equilibrium via Hopf bifurcation. Numerical simulations of the model agree with the theoretical results. These dynamical behaviours occur within biologically realistic parameter range.

After studying the single-strain model, we analyze the bifurcation dynamics of an …

A Collection Of Portfolio Management Issues, Mike Mccausland

Electronic Thesis and Dissertation Repository

This thesis consists of three chapters of interest to a portfolio manager. The first paper examines how the profitability of trading rules depends on volatility. In particular, a question of interest is whether one rule dominates all others regardless of the level of volatility, or whether it is more profitable to vary the choice of trading rule corresponding to volatility. Certain rules, such as the KST indicator using overbought/oversold levels, appear to excel under highly volatile conditions, while exponential moving average rules perform better with low volatility. In the second paper, a Value-at-Risk (VaR) model capable of producing accurate and …

Development Of Novel Nanomaterials For High-Performance And Low-Cost Fuel Cell Applications, Shuhui Sun

Electronic Thesis and Dissertation Repository

Proton exchange membrane fuel cells (PEMFCs) are promising energy converting technologies to generate electricity by mainly using hydrogen as a fuel, producing water as the only exhaust. However, short life-time and high cost of Pt catalyst are the main obstacles for the commercialization of PEMFCs. In the conventional carbon black supported platinum nanoparticle (NP) commercial catalyst, carbon supports are prone to oxidation and corrosion over time that results in Pt NPs migration, coalescence, even detaching from the catalyst support. In addition, Ostwald ripening of the Pt NPs could also occur due to their high surface energy and zero dimensional structural …

A Self-Regulation Model Of Depression: Content Of Cognitive Representations And Prediction Of Treatment Seeking, Catherine Leite

Electronic Thesis and Dissertation Repository

Leventhal's self-regulation model (SRM) was applied as a conceptual framework from which to examine individuals' cognitive representations of depressive symptoms. This thesis explored the nature of these representations, as well as factors that may impact on these representations and, in turn, influence coping strategies and professional help seeking. In particular, Study 1 examined the effect of symptom severity and the label used to identify the symptoms on the cognitive representations of depressive symptoms and coping, whereas Study 2 examined the effect of symptom duration in this regard. This thesis also considered the extent to which the various SRM domains are …

Emergence And Reduction In Science. A Case Study, Alexandru Manafu

Electronic Thesis and Dissertation Repository

The past decade or so has witnessed an increase in the number of philosophical discussions about emergence and reduction in science. However, many of these discussions (though not all) remain too abstract and theoretical, and are wanting with respect to concrete examples taken from the sciences. This dissertation studies the topics of reduction and emergence in the context of a case study. I focus on the case of chemistry and investigate how emergentism can help us secure the autonomy of this discipline in relation to the underlying microphysics. I develop an account of emergence (called functional emergence) that is, …

Biological Inheritance And The Social Order In Late-Victorian Fiction And Science, Sherrin Berezowsky

Electronic Thesis and Dissertation Repository

This dissertation investigates the heightened interest in heredity as a biological inheritance that arises after the publication of Charles Darwin’s On the Origin of Species and how this interest intersects with concerns about class mobility and the shifting social order. Within this framework, this project considers how heredity became a means of organizing and regulating bodies in keeping with what Michel Foucault terms bio-power. It unearths the cultural work within literary and scientific writings as they respond to narratives of self-help and self-improvement by imagining heredity as a means of stabilizing the social order, and by extension the nation, at …

Flexibility In Parent-Child Interactions: The Application Of Dynamic Systems Methodology To Dyadic Processes In Children With Behaviour Problems, Vivien Lee

Electronic Thesis and Dissertation Repository

Dynamic systems theory (DST) can provide a comprehensive account for how parent-child interactions evolve over time to produce stable patterns of interacting and can result in seemingly divergent trajectories. Recent methodological advances using state space grids (SSGs) have provided a graphical means to examine real-time dyadic processes, as well as measures of dyadic flexibility, or the ability to adapt emotional and behavioural responding in response to contextual demands. Higher levels of dyadic flexibility have been associated with improvements in child behaviour problems after treatment (Granic et al., 2007), while its converse, rigidity, has been associated with increases in behaviour …

The Expression Of Religious Bias In The Evaluation Of Foreign-Trained Job Applicants, Caroline Bennett-Abuayyash

Electronic Thesis and Dissertation Repository

This dissertation compromises 2 experiments that investigated religious discrimination as it particularly affects foreign-trained job applicants. Study 1 consisted of a 3 (Applicant’s religion: Christian, Muslim, or No Affiliation) X 2 (Applicant’s location of training: Canada or Cyprus) between-subjects design. After viewing an advertisement for a health-care position, Canadian participants reviewed a male applicant’s CV and watched his taped interview, in which a briefly visible pendant indicated his religious affiliation. The job applicant was then evaluated on two sets of skills: hard (technical) skills and soft (non-technical) skills. As predicted based on the justification suppression model of prejudice (Crandall & …