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2023 — Carbon capture, utlization, and storage supply chain risk management framework developmentRésumé
Technology called Carbon Capture, Utilization, and Storage (CCUS) is important for capturing CO2 emissions before they get into the air. Because everyone wants to stop global warming by reducing CO2 emissions, CCUS is an important and emerging technology that can help slow down climate change, lower emissions in many areas, and support the move to a sustainable and carbon-neutral future. As CCUS technology and its adaptation increases, it is very important to pay attention to the CCUS risks from the supply chain (SC) point of view. The ultimate goal of this study is to is to identify CCUS supply chain … Lire la suite
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2022 — Intergenerational knowledge transfer in traditional herbal medicine (THM) practices among the Igbo tribe in Nigeria: A qualitative studyRésumé
The study investigated the intergenerational transfer of knowledge of traditional herbal medicine (THM) practices among Igbo tribe in postcolonial Nigerian society. The study was conducted in the Ohafia community1 of Abia State, Nigeria. It involved ten traditional herbal medicine practitioners purposively selected from two of the six autonomous communities that comprised Ohafia. It was guided by postcolonial theory, third space theory and Indigenous cultural responsiveness theory. The postcolonial theory offered me a veritable tool for thinking through the history of imperialism. In addition, third space and Indigenous cultural responsiveness theory offered me a safe space to re-think the colonial legacies … Lire la suite
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2018 — Oral Storytelling and Intergenerational Learning Among Abam PeopleRésumé
This study explored oral storytelling and intergenerational learning among the Abam (Indigenous people of the Igbo tribe of Nigeria). I embarked on this study based on my experience with the Abam people and because of my concerns that oral storytelling traditions seemed to be less prevalent these days. This study was guided by postcolonial theories by Frantz Fanon and Paulo Freire. These theorists portray formally colonized people as living in the ideals of the colonizers even after they achieved independence. An Indigenous qualitative research approach was used in data collection. In line with the epistemologies of Abam people, I adopted … Lire la suite
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2021 — Developing a synthetic organophosphorus-based disinfectant for Canadian chicken hatcheriesRésumé
The spread of bacterial pathogens within chicken hatcheries is a growing concern. Enterococcus cecorum is a bacterium that causes infection of the chicken respiratory system and in some cases the spine, often requiring farmers to cull a portion of their flocks. Disinfectants used in hatcheries are effective, yet pathogens like E. cecorum remain problematic for both producers and hatcheries. A library of synthetic organophosphorus compounds possessing antimicrobial activities were evaluated as disinfectants for use in chicken hatcheries. After evaluating compounds 9bWC2, 9bWC3, 9cWC2, 9cWC3, and 10bW in combination with the solvents ethanol, isopropanol, dimethyl sulfoxide, and tetrahydrofuran, compound 10bW dissolved … Lire la suite
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2022 — Fabrication of microcapsules embedding phase change materials (PCMS) via needle-based microfluidic system: An innovative approach to produce microparticles applicable in enhanced oil recoveryRésumé
Chemical flooding including polymer flooding has been proved to benefit the oil recovery by decrease the mobility ratio of the flooding mechanism. However, their performance is hardly comparable to the thermal methods. This study is intended to propose and synthesize a polymeric micro-size particles carrying inside a latent heat thermal energy storage (LHTES) material. The applied phase change material (PCM) supplies the thermal energy of the polymer microcapsules. This study stepped into synthesizing such novel materials in EOR. Microfluid systems were utilized in encapsuling a PCM substance in a polymer matrix. Two diverse systems of PMMA microsystem and needle-based microfluidics … Lire la suite
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2016 — Photocontrol of Ion Permeation in Lipid Vesicles Incorporating Amphiphilic Dithienylethene and Spirooxazine DerivativesRésumé
The photocontrol of ion permeation across a lipid bilayer membrane incorporating amphiphilic photochromic compounds, such as dithienylethenes (DTEs) and spirooxazines (SpOxs), has been investigated. In general, photochromic compounds change their molecular structure during photoisomerization. The effect of this photoisomerization on the membrane permeability of lipid vesicles has been examined. Specifically, three DTE derivatives 21–23 and three SpOx derivatives 24–26 were incorporated into a variety of lipid vesicles to study their potential as membrane disruptors. Initially, a regioselective approach was used to synthesize 21–23 that contain a dodecyl or hexyl chain terminated with a quaternary ammonium substituent, and methyl or phenylethynyl … Lire la suite
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2017 — The Depiction of Expert Women in Canadian NewspapersRésumé
This study focuses on gender inequality in representations of “expert” women in the media. Existing scholarly literature has demonstrated that, in general, women are underrepresented or portrayed as objects or victims in the media. Very little of this literature has examined depictions of “expert” women. The research is guided by this question: How are “expert” women depicted in contemporary Canadian newspapers? The methodologica l framework of the research is a mixed-methods approach using discourse analysis as methodology and content analysis as the concrete method. The data were collected from all news pages of the National Post and the Globe and … Lire la suite
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2022 — Developing Canadian solid waste management system at a regional level with the integration of remote sensing satellite imagery, machine learning tools, and GIS network analysisRésumé
Current thesis indicates the outcomes of developing a series of data-driven researches aggregating remote sensing satellite imagery, machine learning tools, and GIS network analysis. In the first part of this study, a GIS-Based method is developed that considers spatial, environmental, and economic constraints using study regions derived from NTL imagery for a 40-km buffer around Regina, Saskatchewan, Canada. Results showed that road network stands as the most decisive factor for detecting suitable sites for landfills followed by protected areas. LST and NDVI fluctuations in the vicinity of 8 Canadian engineered landfills were evaluated to identify biothermal zones and environmental footprints … Lire la suite
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2014 — Healing Through Justice: The Application of Holistic Healing to Racialized and Sexualized Violence against Aboriginal Women of SaskatchewanRésumé
Over the last three decades, feminist research has brought violence against women to the attention of policy makers and the general public. In more recent years, researchers have begun to explore the intersection of race, colonialism and gender when examining the issues of violence against Aboriginal women and women of colour (Brownridge 2009, 164-200; Dylan, Regehr, Alaggia 2008, 678-696; Razack 2002, 123-156; 1998, 56-87; Smith 2005, 7-33; Stevenson 1999, 49-80). Aboriginal women in Canada experience exponentially higher rates of violence than non-Aboriginal Canadians do (Amnesty International 2004, 23; Johnson 2006, 14; Sinha 2013, 19). Further, Aboriginal women’s mortality rates as … Lire la suite
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2015 — Global regulatory mutations contribute to antibiotic resistance in Salmonella TyphimuriumRésumé
Ciprofloxacin is one of the few drugs still effective against Salmonella infections. Ciprofloxacin binds the A subunit of type II topoisomerase enzymes, primarily GyrA (DNA gyrase) in Gram-negative bacteria and ParC (topoisomerase IV) in Gram-positive bacteria. Interaction of ciprofloxacin with topoisomerases disrupts enzyme function resulting in double stranded breaks in the chromosome, relaxation of DNA supercoiling, and the cessation of DNA replication. We tested the growth of Salmonella enterica SL1344 and mutants, fis, crp and rpoS, in LB containing 0%, 0.5% and 1% NaCl and sublethal concentrations of the antibiotics novobiocin, nalidixic acid, and ciprofloxacin. We observed that a Salmonella … Lire la suite
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2015 — An Efficient Lentiviral-based Proteomics Approach Identifies Mitochondrial Complexes with Neurodegenerative FunctionRésumé
Perturbations in proteins involved in the mitochondrial processes have emerged as a causative factor in a wide range of life-threatening human diseases, such as neurodegenerative disorders. In fact, mitochondrial dysfunctions are argued to be the first step in triggering the onset of other deleterious events that collectively act causally in the pathogenesis of diseases. Accordingly, dysfunctions in mitochondrial proteins influence the proper functioning of basic processes, such as energy metabolism and reactive species production. Indeed, biochemical and genetic evidence has provided molecular insights into the role of mitochondrial proteins and complexes in isolation, yet our understanding of how mitochondrial proteins … Lire la suite
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2023 — Policy issue networks: Social network analysis case studiesRésumé
This research demonstrates that Social Network Analysis (SNA) can be a powerful, proactive tool for policy makers to understand the online policy networks in which they operate. It does so by undertaking SNA at two points in time to quantify the actor nodes of three Canadian public policy networks, comparing the network evolution over time, and visualizing their structure and relationships with related policy issues. The three Canadian policy case study subjects are cannabis legalization, nuclear energy development, and the Trans Mountain Pipeline expansion project (TMX). The cases were selected for their current social importance and national concern, and complexity … Lire la suite
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2019 — An Approach for Building and Querying Linked DatasetsRésumé
The World Wide Web (WWW) was first envisioned as a global web of linked documents and it is now becoming a global web of linked data. The World Wide Web Consortium (W3C) uses the term semantic web1 to refer to this new vision. This thesis is focused on building linked datasets from data which may not be fully accessible on the web. Once transformed into linked datasets, the public is more able to use and query the data. Various semantic web technologies for handling data are used in this thesis. These technologies includeWeb Ontology Language (OWL) for describing the semantics … Lire la suite
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2021 — On the Hypothesis Testing Procedure for Both Parameters of the Binomial DistributionRésumé
The main purpose of this thesis is to perform the hypothesis tests of parameters p and m (both are unknown) of the binomial distribution. Delta method and the moment generating function are used to derive the important statistic X_2^2 (p,m) for the hypothesis testing based on its asymptotical distribution. The probability of type I error and the power of the test are calculated, which are the main parts of this research. For the hypothesis testing, we consider the null hypothesis H_0:p=p_0,m=m_0 with a significant level α=0.05. The rejection region was considered to be: X_2^2 (p_0,m_0 )>χ^2 (α), where χ^2 … Lire la suite
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2020 — Computational Aspects of An Asymptotic Analysis of Method of Moments Estimators of Parameters For the Binomial DistributionRésumé
In this thesis, I evaluate the confidence region of the known parameters p and m of the Binomial distribution and analyze them using descriptive statistics. This research first introduces the method of moments estimators of these parameters, p ̂_n and m ̂_n. Because p ̂_n and m ̂_n do not have mean values and variances, new, modified estimators, p ̃_n and m ̃_n, are presented for the parameters of the binomial distribution. I use the Delta method to develop the asymptotic distribution of p ̂_n, m ̂_n, p ̃_n and m ̃_n. The formulae used to calculate the confidence region … Lire la suite
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2023 — Crystallography of Pharmaceuticals: Ways to improve efficiency and assessing the fragment-based approach for enhanced polymorph discriminationRésumé
Nuclear magnetic resonance (NMR) crystallography is an emerging method that combines experimental and computational data to perform various characterization tasks, such as structure determination, validation, and refinement. NMR crystallography can be used to determine the crystal structures of chemicals even when other experimental methods, such as X-ray diffraction, cannot. Here, we discuss aspects of computational modeling at the Density Functional Theory (DFT) level. Specifically, we calculated NMR parameters such as magnetic shielding values. Most often, we will be looking at 1H magnetic shielding values, as they are associated with the hydrogen atoms that are regularly involved in the intermolecular interactions … Lire la suite
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2015 — A Combinatorial Tweet Clustering Methodology Utilizing Inter and Intra Cosine SimilarityRésumé
Data mining techniques are well known and are often used to analyze and explore datasets for meaningful information. Social media, such as Twitter, has emerged as a source of data where millions of tweets are generated everyday. They include tweets from individuals who share thoughts, commentary and their feelings about a wide variety of subjects. Social media also attracts marketers and businesses for the purpose of advertising, brand imaging and getting feedback from users. Twitter’s significant popularity and mass usage has resulted in a very large dataset where virtually any subject that is queried from the Twitter API may return … Lire la suite
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2013 — Quasi-elliptic Microwave Filter Design Using the Reflected Group Delay MethodRésumé
Microwave filters are essential components in a microwave system, as they define the usable and allowable bandwidth and as they reject unwanted signals from passing through them. The design and required optimization of microwave filters is an involved process and getting the desired filter response can be difficult, especially for filters with a higher order and those with narrow bandwidths. In most instances, a fabricated microwave filter will need to be tuned to get the desired response, so it can be very important to achieve accurate simulation results to limit the required post-fabrication tuning. As the electromagnetic simulations can take … Lire la suite
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2020 — The Spaces of Addiction in Oscar Wilde’s The Picture of Dorian GrayRésumé
My thesis focuses on the role of opium and addiction in Dorian Gray. Opium is present throughout the entire novel, and this particular drug is very significant in Dorian’s life, yet the significance of this drug is often overlooked by critics. Up to this point, the main focus of commentary on Dorian Gray has been about the painting and its supernatural qualities, theatre in late Victorian London, and Dorian’s homoerotic desires. My thesis builds on these current academic contributions by arguing that opium is Dorian’s central addiction in the text, influencing his secondary addictions to aesthetic pleasure and sex and … Lire la suite
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2016 — Catalystic Pyrolysis for the Production of Stable Phenol Rich Bio-Oil from Wood BiomassRésumé
Biomass studies over the last two decades shows its use as an alternate source for the production of chemicals and fuels. This can help in reducing our load on the conventional hydrocarbon use and be shared with renewable sources such as forest and agricultural wastes. In Saskatchewan, there is abundant availability of wood waste from the timber industry; hence wood can be used as biomass raw material for the production of bio-chemicals. Pyrolysis is the most promising technology for the conversion of biomass into liquids. In this research, wood pellets obtained from a lumber company were used as the feed … Lire la suite
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2014 — Dynamic and Static CO2 Mass Transfer Processes in Bulk Heavy Oil and Heavy Oil Saturated Porous MediaRésumé
In the petroleum industry, the contribution of solvents to the production of oil has become more cardinal, as production from the reservoirs have advanced from primary oil production to secondary and tertiary methods. Vapour extraction (VAPEX), CO2 flooding, CO2 Huff-and-Puff are some of the solvent based approaches used in the industry to enhance oil recovery performance. These methods involve the injection of a vaporized solvent into the reservoir in order to reduce the viscosity of the oil and increase the oil mobility. The main mechanism that contributes in the solvent-based enhanced oil recovery method is the mass transfer from the … Lire la suite
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2017 — Multi-Physical Simulations of Dense Granular Flows by Mesh-Free MethodRésumé
Recently, applying mesh free method coupled with a constitutive rheology has achieved success in modeling dynamics in dry granular flows. However, research on comprehensive validation on the coupled model in different aspects, such as pressure, velocity, shear stress, surface, friction factor and different geometries is limited. In this study, three different cases, including gravity driven flow, 2D column collapse and granular dam-break are simulated to validate the coupled model of MPS method with (I) rheology model, by comparing the simulated results with analytical solutions and experimental results. In the simulations, flow characteristics are successfully captured in dry granular flows in … Lire la suite
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2020 — Imagining Ramona: The Mythologization and Martyrdom of a Zapatista Resistance FighterRésumé
During the Ejército Zapatista de Liberación Nacional (EZLN/Zapatista) campaign, images of insurgent leader La Comandanta Ramona circulated across Mexico and the globe, encouraging popular support for the Indigenous resistance movement, which was launched from Chiapas’ Lacandón jungle on January 1, 1994.1 Deemed “the petite warrior”2 and a “modern-day David battling Goliath,”3 the masked Maya woman, according to political scientist Karen Kampwirth, captured “[m]ore than any other single Zapatista woman…the imagination of millions.”4 Indeed, by challenging the Mexican government and defending the rights of Indigenous peoples, Ramona became one of the most important revolutionary women in the country’s history. In an … Lire la suite
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2018 — Performance of Dependent Bootstrap Confidence Intervals For Generalized Gamma MeansRésumé
In lifetime data analysis (e.g. survival analysis, reliability analysis) the Generalized Gamma distribution is a versatile lifetime distribution that includes the Exponential, Gamma, and Weibull distributions as special cases. In such analyses, as with most statistical analyses, it is often important to gauge the accuracy and precision of the resulting estimates. One of the most common ways of doing this is by constructing confidence intervals. Theoretical approaches are not always appropriate in practice and computational methods are needed. Some of the most common methods utilize bootstrap sampling procedures. Through systematic testing, this research looked for general rules of when various … Lire la suite
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2013 — Emotional Adjustment to Multiple Sclerosis: Evaluation of a Stress and Coping Model and a Cognitive Adaptation ModelRésumé
Multiple Sclerosis (MS) is an unpredictable health condition that affects physical, cognitive, and emotional aspects of life (Compston & Coles, 2008). Emotional adjustment to MS is often studied by examining psychopathology rather than positive adjustment outcomes. Lacking in the literature on adjustment to MS is attention to integrated and parsimonious models of both negative and positive aspects of emotional adjustment. The purpose of this study was to examine, compare, and integrate two models of emotional adjustment to MS, with adjustment conceptualized as including both negative outcomes (i.e., anxiety, depression, negative affect) and positive outcomes (i.e., positive affect and quality of … Lire la suite
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2025 — Alliances, assemblages, and affect: Teacher activism within and beyond the union in SaskatchewanRésumé
In recent decades, Canadian governments have increasingly drawn upon global neoliberal policies to regulate the work of teachers and their professional organizations (Bascia, 2015; Smaller, 1998). Neoliberalism has radically altered educational policies with respect to curriculum, teaching pedagogy, and teachers’ professionalism (Apple, 2006; Ball, 2003), impeding teachers’ ability to deliver democratic education (Darder, 2019). Viewing teacher activism broadly, this research explored Saskatchewan teacher activists’ resistance to marketdriven educational reforms through their engagement with both the power of grassroots social movements and the institutional authority of their union. Guided by Harding et al.’s (2018) poststructural framework of alliances, assemblages, and affects, … Lire la suite
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2015 — An Action Research Study: EAL and Content Teachers Collaborating to Support All Students at a Secondary SchoolRésumé
As the number of English as an Additional Language (EAL) students increases in Saskatchewan schools, there is a need for language and content teachers to work collaboratively. This study describes the implementation of an action research project involving the researcher as an EAL teacher collaborating with three content teachers and another EAL teacher serving as a “critical friend” (Costa and Kallick, 1993). Teachers used the Sheltered Instruction Observation Protocol (Echevarria, Vogt, & Short, 2008) for structuring specialized instruction. Data included pre- and post-interviews, lesson plans and reflective journals. Grounded theory informed the theoretical framework and the data analysis. In order … Lire la suite