Digital Commons Network^™

Recent Cases: Eeoc V. Abercrombie & Fitch Stores, Inc.: Religious Accommodation In The Workplace, Elizabeth King

Faculty Scholarship

In EEOC v. Abercrombie & Fitch Stores, Inc., the plaintiff, Samantha Elauf, was rejected from a sales clerk position because her headscarf clashed with Abercrombie & Fitch’s employee dress code.¹ This code, Abercrombie’s “Look Policy,” required all employees to dress in a “classic East Coast collegiate style” and prohibited “caps.”² However, Elauf, a practicing Muslim, wore a headscarf (or “hijab”) as a representation and obligation of her religion.³ After Abercrombie rejected her employment application, the Equal Employment Opportunity Commission (“EEOC”) sued the company on Elauf’s behalf, alleging a Title VII violation for failure to accommodate a …

Sm And Dy Interaction With Dissolved Organic Matter (Dom) In Freshwater Measured By Ion-Selective Electrode And Fluorescence Quenching Analytical Techniques, Alexandra Carvajal

Theses and Dissertations (Comprehensive)

With the increased demand for lanthanide metals in various industries, companies are looking into mining of these metals in Northern Canada. The release of these metals into the environment may have adverse effect on aquatic ecosystems; thus, it is important to understand potential toxicological effects of lanthanides on aquatic organisms. One way to predict these effects is by using a Biotic Ligand Model (BLM). Although incorporation of lanthanides into the model will require a substantial amount of future research, initial studies into speciation and toxicity can provide a useful basis for future reference. There are two main objectives to this …

National Crises And Moments Of Laughter In ‘Second Interregnum’ South African Drama, 2001-2014, J. Coplen Rose

Theses and Dissertations (Comprehensive)

This dissertation analyzes Anglophone South African dramatic critiques of national crises in the post-apartheid moment. Focusing specifically on the years after Nelson Mandela’s retirement, it examines some of the country’s prominent plays produced between 2001 and 2014. This was an important period of social and political change in South Africa, described by drama theorist Marcia Blumberg as a second interregnum where acts of reconciliation or disaffection were staged frequently (“Reconciling” 140). I build on Blumberg’s temporal model by extending her framework to account for recent events of national significance leading up to, and including, Mandela’s death in 2013. In addition …

Nickel And Copper Mixture Toxicity To Daphnia In Soft Water, Prachi Deshpande

Theses and Dissertations (Comprehensive)

Industrially important metals, such as Cu and Ni, sometimes are present at elevated concentrations in lakes, including those in the Sudbury, ON region. Although they are essential metals, their divalent-cation state (Cu²⁺ and Ni²⁺) can be toxic at high concentrations in the water. The free-ion toxicity of each of these metals has been studied in isolation, but rarely as a mixture. The economic importance of Cu²⁺ and Ni²⁺ makes them essential to study in the context of mixture toxicity. The objectives were to: (1) determine Cu and Ni mixture toxicity to Daphnia through acute LC50 …

Factors Influencing Influenza Vaccination Rates Among Rural Ontario Paramedics, Tonya A. Leduc

Theses and Dissertations (Comprehensive)

Introduction. Influenza vaccination rates have traditionally been very low among healthcare workers (HCWs) however; very few studies have examined vaccination rates andmotivators among paramedics.

Objectives. The Health Belief Model (HBM) (Rosenstock,1974) was used as a guideline in this study to better understand the motivators and barriers to flu vaccination among rural Ontario paramedics. This group represents a considerable proportion of the HCW community, yet it has been virtually omitted from previous research.

Methods. Through the use of self-report questionnaires, and using the HBM as a guideline, a graphical representation of the decision-making process regarding flu vaccination was generated. The sample …

Responses To Change In The Global Political Economy Of Innovation – The Role Of Sub-National States In Industrial Transition, Dan Herman

Theses and Dissertations (Comprehensive)

This dissertation seeks to explore how sub-national levels of the state promote the development of new industrial sectors. To do so this dissertation builds on a series of theoretical perspectives on the role of the state in the economy and develops a unique view of how sub-national states coalesce and contrast within these perspectives. It does so through a series of empirical case studies focused on sub-national jurisdictions in North America that highlight diverse varieties of state actions that contribute, if not lead, industrial transitions and the development of new innovation-oriented industrial sectors. In so doing, the dissertation presents a …

Let's Talk About (Consensual) Sex!, Eleanor M. Mcgrath

Theses and Dissertations (Comprehensive)

Legal, moral, and health-related issues around sexual consent have become prominent in the media in recent years. The public debate surrounding these news stories indicates a large discrepancy in people’s understanding of sexual consent and its legal implications. Motivated by the fact that university students are sexually victimized at rates exceeding the general population, this study explores factors that influence knowledge of legal aspects of sexual consent and confidence in using such knowledge of students/alumni, under 30 years old, from two southern Ontario universities. This quantitative study used an online survey design, and is grounded in a heuristic paradigm, with …

Do Toxicity Modifying Factors Influence Acute Or Chronic Toxicity Of Thulium To Hyalella Azteca?, Alexandria H. Loveridge

Theses and Dissertations (Comprehensive)

The industrial demand for rare earth elements (REEs) is growing and as a result, environmental exposure is a concern. Very little is understood about the toxicity of REEs in aquatic environments. The objective of this research is to evaluate the acute and chronic toxicity of Tm and to also understand the toxicity modifying influence of dissolved organic matter (DOM) and cationic competition (Ca2+, Mg2+ and Na+). Furthermore, the aim of this study was to determine linkages between Tm bioaccumulation, growth and survival during chronic exposures. Standard methods (Environment Canada) were followed for both 96h acute and 14d chronic tests, in …

The Role Of Organic Matter In The Surface Chemistry Of Arsenic Compounds On Iron−(Oxyhydr)Oxides Studied By Atr-Ftir, Arthur Situm

Theses and Dissertations (Comprehensive)

The interaction of organic matter with the interfaces of active soil components such as iron oxides is ubiquitous within soil environments. The presence of organics at these interfaces may have implications for other soil constituents whose mobility is controlled by their ability to bind to active soil components. Most of the studies performed to date which look at these interactions are bulk/batch studies performed ex-situ. Attenuated total internal reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was utilized within this work to study interactions between select model organics (citrate, oxalate and pyrocatechol) and iron−(oxyhydr)oxides, as well as their effect on the surface …

Twerking, Alcohol, And Fame: The Construction Of Disney Celebrities In The Media, Carla R. López

Theses and Dissertations (Comprehensive)

The mass media expanded intrusion of cameras into the public and private lives of celebrities has contributed to the public's fascination with Hollywood celebrities. Specifically, this cultural obsession has been increasingly centered on female celebrity's increased deviancy and criminal behaviours. Although numerous studies have been completed discussing the cultural fixation of Hollywood celebrity culture and the audience’s attachment to these celebrities, few have provided insight into the media construction of cultural narratives surrounding Disney celebrities. To fill the gap in the literature, I will assess how female celebrity deviance and sexuality is constructed in the media by examining the media …

"Getting Ahead" Versus "Getting Along": Examining The Role Of Agency And Communion In Prejudice, Courtney A. Lunt

Theses and Dissertations (Comprehensive)

The topic of prejudice has been extensively studied by psychologists, but there has been no work directly examining whether agency (“getting ahead”) and communion (“getting along”) influence prejudiced attitudes. Across three studies we examined whether these dimensions differentially motivate prejudiced attitudes towards immigrants and Syrian refugees. We expected that agency would positively predict prejudice for those low in communion but not for those high in communion and that a self-threat would amplify this effect. Additionally, we examined unmitigated agency (focus on agency to the exclusion of communion, distinct from high agency and low communion as separate factors) as it has …

Investigative Inadequacies Or Investigative Corruption? Exploring The Role Of Police Misconduct Within Canadian Wrongful Conviction Cases, Michelle L. Lovegrove

Theses and Dissertations (Comprehensive)

The phenomenon of wrongful convictions has begun to attract the attention of the public and scholars alike within the past few decades. However, despite this recent fixation the issue of wrongful convictions is not new, as research on the subject dates back to 1932 with the work of Edwin Borchard. Most of the research on the subject of wrongful convictions has focused largely on identifying the factors that contribute to these injustices. For the most part academics are in agreement when it comes to the causes of wrongful convictions, which include, eyewitness misidentification, false confessions, police & prosecutor misconduct, use …

Experiences Of Victimization And Health Care Access Among Non-Metropolitan Lgbtq+ Individuals, Ashley-Ann Marcotte

Theses and Dissertations (Comprehensive)

Lesbian, gay, bisexual, trans, and queer (LGBTQ+) individuals report substantial rates of violence, discrimination, and negative life events due to homophobia and transphobia and these experiences impact access to health care services and programs (Bauer et al, 2009; Grant, Mottet, Tanis, Harrison, & Keisling, 2010) These experiences result in LGBTQ+ communities needing services, programs, and social supports to provide safer spaces. Although it is well recognized that health care services are not a major determinant of health outcomes and yet use more than 60% of health spending (Canadian Institute for Health Information, 2014; Muzyka, Hodgson, & Prada, 2012). As such, …

Analysis Of The Geosocial Landscape In The City Of Toronto, Courtney J. Jones

Theses and Dissertations (Comprehensive)

Microblogging on geosocial platforms is a popular form of online communication where users post information about their daily lives and challenges. Since the launch of Twitter in 2006, information sharing through social media has become a largely unused data repository. Tweets often convey content about the users sentiment as it is happening. As such, Tweets can be viewed as a proxy of public mood. In this thesis, I performed a sentiment analysis of all public geo-located Tweets posted by a variety of Twitter users between September 2013 and October 2014. Each Tweet was processed through a custom algorithm to extract …

Motivating Parents Of Kids With Asthma To Quit Smoking: The Effect Of The Teachable Moment And Increasing Intervention Intensity Using A Longitudinal Randomized Trial Design, Belinda Borrelli, Erin M. Tooley

Arts & Sciences Faculty Publications

Aims—We tested two aims: 1) The Teachable Moment (TM): whether second hand smoke exposure (SHSe) feedback motivates cessation in parents of children with asthma vs. parents of healthy children (HC) and 2) whether greater intervention intensity (Enhanced-PAM) produces greater cessation than a previously tested intervention (Precaution Adoption Model; PAM).

Design and interventions—Aim 1: Two home visits (asthma education or child wellness), and cessation induction using Motivational Interviewing and SHSe feedback. Aim 2: Post home-visits, parents with asthmatic children were randomized to PAM (n=171; 6 asthma education calls) or Enhanced-PAM (n=170; 6 asthma education/smoking cessation calls + repeat SHSe …

Perceptions Of Ict Use In Rural Brazil: Factors That Impact Appropriation Among Marginalized Communities, Paola Prado, Alejandro Tirado-Alcaraz, Mauro Araújo Câmara

Arts & Sciences Faculty Publications

This study of digital inclusion among the rural poor examines how residents of remote mountain communities in Brazil perceive the use of information and communication technologies (ICTs). It analyzes social factors that impact ICT appropriation and the behaviors and attitudes that advance digital literacy among marginalized rural populations. The authors conducted factor analysis and logistic regressions to survey data collected. Results confirm the presence of a gender divide in ICT adoption. Women were more likely to perceive that ICT use brings social benefits to the community, and considered that ICTs provide better opportunities for the young.

Nanostructured Materials Prepared By Atomic Layer Deposition For Catalysis And Lithium-Ion Battery Applications, Rajankumar Patel

Doctoral Dissertations

"Atomic/molecular layer deposition (ALD/MLD) has emerged as an important technique for depositing thin films in both scientific research and industrial applications. In this dissertation, ALD/MLD was used to create novel nanostructures for two different applications, catalysis and lithium-ion batteries.

MLD was used to prepare ultra-thin dense hybrid organic/inorganic polymer films. Oxidizing the hybrid films removed the organic components and produced the desired nanoporous films. Both porous alumina and titania films can be prepared by such a way. A novel nanostructured catalyst (Pt/SiO₂) with an ultra-thin porous alumina shell obtained from the thermal decomposition of an aluminium alkoxide film …

Single Particle-Inductively Coupled Plasma-Mass Spectrometry Technology Development For Metallic Nanoparticle Characterization In Complex Matrices, Yongbo Dan

Doctoral Dissertations

"As the rapid growing of nanotechnology, the release of engineered nanoparticles (ENPs) into the environment is inevitable. After entering the real environment, ENPs tend to react with different components of the ecosystem (e.g. water, soil, air, plants) and make their characterization difficult. Analyzing ENPs in these complex matrices still remains as a grand challenge. ENPs characterization is normally the first step of risk assessment. Current analytical techniques have shown some limitations in revealing the unique characteristics of ENPs in complex matrices and reliable analytical techniques are in urgent need. Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is an emerging …

Bioactivity/Cytotoxicity Of Micro-/Nano-Materials And Novel Development Of Fiber-Optic Probes For Single Cell Monitoring, Qingbo Yang

Doctoral Dissertations

"Manufactured nano-/micro-materials (MNMs) have been widely used and their interactions with niche biological environment are highly concerned for both of their biohazardous and bioactive effects, whereas no available comprehensive evaluations or regulations have been provided yet. This dissertation thus focuses on three major aspects: 1) fundamental toxicity understandings of a typical MNMs (zinc oxide nanoparticles), 2) bioactivity evaluations of representative bioactive MNMs, and 3) development of novel micro-probes for high spatial resolution monitoring. Firstly, the NP's concentration, irradiation, hydrodynamic size, and the localized pH, ionic strength, NP zeta-potential as well as dissolved oxygen levels were found correlated with the production …

Modeling Daily Electricity Load Curve Using Cubic Splines And Functional Principal Components, Abdelmonaem Salem Jornaz

Doctoral Dissertations

"Forecasting electricity load is very important to the electric utilities as well as producers of power because accurate predictions can cut down costs by avoiding power shortages or surpluses. Of specific interest is the 24-hour daily electricity load profile, which provides insight into periods of high demand and periods where the use of electricity is at a minimum. Researchers have proposed many approaches to modeling electricity prices, real-time load, and day-ahead demand, with varying success. In this dissertation three new approaches to modeling and forecasting the 24-hour daily electricity load profiles are presented. The application of the proposed methods is …

Microwave Material Characterization Of Alkali-Silica Reaction (Asr) Gel In Cementitious Materials, Ashkan Hashemi

Doctoral Dissertations

"Since alkali-silica reaction (ASR) was recognized as a durability challenge in cement-based materials over 70 years ago, numerous methods have been utilized to prevent, detect, and mitigate this issue. However, quantifying the amount of produced ASR byproducts (i.e., ASR gel) in-service is still of great interest in the infrastructure industry. The overarching objective of this dissertation is to bring a new understanding to the fundamentals of ASR formation from a microwave dielectric property characterization point-of-view, and more importantly, to investigate the potential for devising a microwave nondestructive testing approach for ASR gel detection and evaluation. To this end, a comprehensive …

Continuous Flow Reactor For Carbonic Acid Hydrolysis/Pretreatment Of Microalgal Biomass To Produce Bioethanol, Nicholas Dudenhoeffer

Doctoral Dissertations

"In order to maximize bioethanol production an efficient pretreatment method for the hydrolysis of polysaccharides to fermentable sugars is necessary. Commonly used pretreatment methods are the slow enzymatic hydrolysis and the corrosive mineral acid hydrolysis process that requires a post-treatment neutralization step and generates waste stream. We investigated the high temperature water with carbonic acid catalyst as an alternative method. Carbonic acid generated from dissolved CO₂ is inexpensive and environmentally benign, and easily removed by decompression. A high pressure continuous flow reactor that can continuously process the wet biomass stream and perform the carbonic acid hydrolysis in-situ using the …

Existence And Classification Of Nonoscillatory Solutions Of Two Dimensional Time Scale Systems, Özkan Özturk

Doctoral Dissertations

"During the past years, there has been an increasing interest in studying oscillation and nonoscillation criteria for dynamic equations and systems on time scales that harmonize the oscillation and nonoscillation theory for the continuous and discrete cases in order to combine them in one comprehensive theory and eliminate obscurity from both.

We not only classify nonoscillatory solutions of dynamic equations and systems on time scales but also guarantee the (non)existence of such solutions by using the Knaster fixed point theorem, Schauder - Tychonoff fixed point theorem, and Schauder fixed point theorem. The approach is based on the sign of nonoscillatory …

Contribution Of New Thiol Antioxidant In The Treatment Of Acetaminophen Toxicity, Ahdab Naeem Khayyat

Doctoral Dissertations

"Acetaminophen (N-acetyl-p-aminophenol, APAP) is one of the most widely used over-the-counter antipyretic analgesic medications. It is safe at therapeutic doses, but an overdose can result in severe hepato-nephrotoxicity, a leading cause of drug-induced acute liver failure in the U.S. Although a few different mechanisms have been proposed for APAP-induced toxicity, a significant amount of evidence has pointed to the potential involvement of oxidative stress in acetaminophen toxicity. Depletion of glutathione (GSH) is one of the initiating steps in APAP-induced toxicity; therefore, one strategy for restricting organ damage is to restore GSH levels by using GSH prodrugs like N-acetylcysteine (NAC). Although …

Cable Shovel Dipper Stress And Fatigue Failure Modeling In Formation Excavation Engineering, Muhammad Azeem Raza

Doctoral Dissertations

"Large capacity shovels are used to achieve economic bulk production in surface mining operations. The suspended payload combined with dipper weight and formation resistive forces results in severe stress loading of the shovel front-end assembly. Material flaws, high stresses and harsh excavation conditions can initiate cracks in the dipper-teeth assembly. High stresses can cause these cracks to propagate to critical lengths resulting in fatigue failure, unscheduled downtimes, costly unplanned repairs, and downstream processing circuit problems. The literature reveals that dipper-related problems significantly reduce shovel up-time. This research is a pioneering effort towards developing a solid frame work for stress profiling, …

Study Of Heat Transfer Phenomenon During Natural Convection, Muhammad Yousaf

Doctoral Dissertations

"The purpose of the present study was to numerically investigate the effects of the roughness elements on the heat transfer during natural convection. A computational algorithm was developed based on the Lattice Boltzmann method to conduct numerical study in two-dimensional rectangular cavities and Rayleigh-Bénard cell. A single relaxation time Bhatnagar-Gross-Krook model of Lattice Boltzmann method was used to solve the coupled momentum and energy equations in two-dimensional lattices. Computational model was validated against previous benchmark solutions, and a good agreement was found to exist. A Newtonian fluid of Prandtl (Pr) number 1.0 was considered for this numerical study. The range …

Modeling Gas Inflow For Extremely Low Permeability Shale Using Cfd, Chatetha Chumkratoke

Doctoral Dissertations

"Computational fluid dynamics (CFD) has been used to model 2-D well inflow over a range of permeabilities to study the impact of various well completion strategies (Augustine, 2011). Augustine's 2-D model was subsequently extended for 3-D flow by Thepporprapakorn (2013), for gas flow in the permeability range of tight gas (0.01 mD).

This work presents a 3-D CFD model of gas inflow valid for extremely low ranges of permeability (0.00001 mD). In extremely low permeability, gas flow is complex and includes flow from fractures, flow through porous media, and diffusive gas transport. Diffusive gas transport is important when strong density …

Modeling Explosive Lensing On A Cylindrical Body In Air: A First Step Towards Sealing An Underwater Offshore Oil Spill, Phillip R. Mulligan

Doctoral Dissertations

"In 2010, the British Petroleum (BP) Deepwater Horizon accident leaked oil into the Gulf of Mexico for 87 days. A fast response method that can seal an oil pipe and stop the release of oil is needed in order to prevent future oil leaks from turning into ecological and financial disasters. Explosives can serve this need.

This research examined how a circular implosive discontinuous explosive lens interacts with a cylindrical surface. The following research was designed to study the applicability of the Method this author developed to predict the peak pressure from multiple shockwaves converging on a centrally located cylinder. …

Advancing Microalgae Culturing Via Bubble Dynamics, Mass Transfer, And Dynamic Growth Investigations, Aastha Ojha

Doctoral Dissertations

"The major hindrances to large scale cultivation of microalgae are the problems associated with the design, operation, and scale-up of airlift photobioreactors (PBRs), due to a lack of a comprehensive understanding of the gas-liquid interaction process in real microalgae cultures. Thus, the overall objective of this work is to advance the fundamental understanding of microalgae culturing via gas holdup, bubble dynamics, mass transfer, and dynamic growth investigations.

First, a four-point optical fiber probe technique was employed to study the local gas holdup, and bubble dynamics properties such as bubble passage frequency, chord length and bubble velocity distribution, and interfacial area …

Development Of Implants Composed Of Bioactive Materials For Bone Repair, Wei Xiao

Doctoral Dissertations

"The purpose of this Ph.D. research was to address the clinical need for synthetic bioactive materials to heal defects in non-loaded and loaded bone. Hollow hydroxyapatite (HA) microspheres created in a previous study were evaluated as a carrier for controlled release of bone morphogenetic protein-2 (BMP2) in bone regeneration. New bone formation in rat calvarial defects implanted with BMP2-loaded microspheres (43%) was significantly higher than microspheres without BMP2 (17%) at 6 weeks postimplantation. Then hollow HA microspheres with a carbonate-substituted composition were prepared to improve their resorption rate. Hollow HA microspheres with ~12 wt. % of carbonate showed significantly higher …