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2022 — Entanglements of Pediatric Pain Practices in an Acute Care Setting: Critical Participatory Action Research with Student Co-Researchers in an Interprofessional Education ContextRésumé
Children’s pain continues to be undertreated despite extensive research over the past five decades and this has ethical implications for practice. In this inquiry, I examine pediatric pain practices in my local health region through critical participatory action research (CPAR) with eight student co-researchers. CPAR is aligned with a clinical interprofessional education (IPE) experience in pediatric pain where students from medicine, nursing and psychology had varying degrees of involvement. As a facultystudent research team we explored the perspectives of 226 participants (children, parents, students, and health care professionals) on pediatric pain management. Data was gathered through interviews, focus groups and … 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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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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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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2022 — Sedimentology and Biostratigraphy of the Chorgali Formation, Potwar and Hazara Sub-Basins, Upper Indus Basin of Pakistan: Implications for the Closing Stage of the Eastern Neo-Tethys OceanRésumé
The Chorgali Formation is a hydrocarbon-producing lithostratigraphic unit that occurs in different sub-basins of the Indus Basin in northern Pakistan, such as Potwar and Hazara sub- basins. The formation is part of a very thick carbonate succession deposited in the eastern Neo- Tethys Ocean shelf. It conformably overlies on early Eocene Sakesar Formation in southern Potwar sub-basin and lies on Margala Hill Limestone in the northern Potwar sub-basin and Hazara sub-basin. The Chorgali Formation is either covered by Miocene continental deposits of Murree Formation (Himalayan molasse deposits) or middle Eocene mixed clastic-carbonate succession of marine to continental beds of the … Lire la suite
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2022 — Faciliter l’intégration des immigrants du Moyen-Orient dans la communauté fransaskoiseRésumé
This research aims to facilitate the integration of immigrants from the Middle East (with different linguistic backgrounds) into the Fransaskois community. The existing literature illustrates the importance of immigration in Canada and, particularly, in Western Canada. This immigration plays a major role in securing francophone minorities’ demographic weight. The Fransaskois community, given its flexible inclusion criteria, seems capable of integrating immigrants. Immigrants from the Middle East also show much linguistic and cultural flexibility and are willing to choose the “Francophone route” when they settle in Saskatchewan. However, in this study, through interviews with immigrants from the Middle East and representatives … Lire la suite
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2022 — Deformation bands and their relationship to syn-to post-Athabasca faulting and unconformity-related uranium deposits: A case study and comparison of the C1 fault corridor and WS shear zone (Gryphon and Phoenix deposits) in the eastern Athabasca BasinRésumé
Saskatchewan is home to world-class uranium (U) deposits associated with the unconformity between the Proterozoic Athabasca Basin and underlying Archean- Paleoproterozoic basement rocks. Many deposits exhibit a strong spatial association with post-Athabasca faults formed by the reactivation of basement-rooted structures. Deformation bands are products of localized strain in porous sedimentary rocks and are commonly associated with fault damage zones. They can significantly modify porosity due to grain rotation and granular flow. This study investigated deformation bands in sandstones of the basal Manitou Falls Group in eight drillhole fences that transect two fault corridors in the eastern Athabasca Basin: the NNE-trending … Lire la suite
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2022 — The effect of relapsing-remitting Multiple Sclerosis on gait variability and regularityRésumé
Multiple Sclerosis (MS) is an inflammatory and neurodegenerative autoimmune disease that destroys the myelin sheath of the central nervous system. Gait impairments are one of the most debilitating and concerning symptoms for PwMS that can significantly impact an individual’s quality of life. Gait changes in people with MS (PwMS) have often been quantified using basic spatiotemporal parameters; however, research into more complex measures of gait variability, such as the measurement of small fluctuations that occur during the gait cycle (e.g., fractal-scaling index (FSI)), and the measurement of the consistency of trunk-based acceleration waveforms (gait regularity), have been shown to provide … Lire la suite
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2022 — Branching Out: Examining the Possibilities and Challenges of Community Garden ExpansionRésumé
The North Central Community Gardens (NCCG) – the urban agriculture program of the North Central Community Association (NCCA) in Regina, Saskatchewan, Canada – introduced the Branch Out Project (BOP) in the summer of 2020. After several years of conversations with community members and discussions among NCCA staff, BOP was designed as a participatory action research project that would promote the expansion of the NCCG into residents’ yards and schoolgrounds as well as facilitate research on the practical and theoretical implications of this initiative. Amidst the many regulations, upheavals to local and global economies, and disruptions of social and cultural lives … Lire la suite
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2022 — Shifting focus: Feasibility of online mindfulness meditations as an adjunct to tailored internet-delivered cognitive behaviour therapyRésumé
Background. Public safety personnel (PSP) are at an increased risk for developing mental disorders compared to the general population. The PSP Wellbeing Course is a transdiagnostic internet-delivered cognitive behaviour therapy (ICBT) course tailored to assist PSP to manage symptoms of depression, anxiety, and posttraumatic stress injuries using cognitive behavioural strategies. While the effectiveness of this course is supported by evidence (Hadjistavropoulos, McCall, et al., 2021), incorporating mindfulness as an additional strategy to assist PSP with symptoms could potentially improve the program. Mindfulness interventions can help people learn to experience the world and their reactions to the world in open and … Lire la suite
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2022 — Genomic and experimental insights into the ecology and evolution of transferable genetic elementsRésumé
Bacteria have dynamic genomes that allow them to adapt and survive almost anywhere on Earth. This genetic flexibility is facilitated by mobile DNA elements, which can transfer within or between genomes independently of cell lineages and drive bacterial evolution. Mobile genetic elements influence many aspects of bacterial life by encoding and transferring antimicrobial resistance genes, pathogenicity factors, and toxin-antitoxin modules. Plasmids, integrons, and genomic islands are several types of mobile DNA elements that can carry beneficial genes which help host cells adapt to new environments or provide new ecological functions. However, much is still unknown about how mobile genetic elements … Lire la suite
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2022 — Statistical-Based Hydrological Simulation and InferenceRésumé
Hydrological models have been used as essential tools for water resources planning and understanding the mechanisms in the water cycle. The rapid advance in information science and computational power in recent decades has encouraged hydrologists to solve water problems through data-driven approaches. To date, various statistical methods have been developed for hydrological simulation and inference (i.e., explain reasonings behind model response). However, many challenges arise from enormous uncertainties and complexities in the hydrological systems that greatly limit the usefulness of statistical models in terms of simulation accuracy and inference. Thus, there is a global need for advanced statistical models for … Lire la suite
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2022 — Generalized fiducial inference on the means of zero-inflated Binomial and Binomial hurdle modelsRésumé
The zero-inflated binomial and binomial hurdle models are two models to address the problem of excess zeros for proportional data. Both model structures are similar, which are composed of two distributions. A degenerate process is responsible for producing zeros, which are called structural zeros. The other distribution could be a binomial or zero truncated binomial distribution which depends on the type of model in this study. Zero-inflated binomial (ZIB) model involves the sampling zeros. On the other hand, binomial hurdle(BH) model address the structure zeros only in the zero-inflated part, which is a difference between the two models. Generalized fiducial … Lire la suite
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2022 — Exploring Chinese instructors’ perceptions and practices of integrating culture into tertiary-level English education: A case studyRésumé
Pedagogical conceptualization of culture influences, in significant ways, how language instructors identify cultural points, contextualize culture for pedagogical purposes, and scaffold student meaning-making. Although this issue is at the core of intercultural pedagogy, literature suggests it remains insufficiently investigated. As a meaning-based and process-oriented study, this research aimed to develop an in-depth understanding of participants’ collective ways of conceptualizing culture within English language teaching (ELT), delineate the most salient features of their classroom meaning-making, and reveal the contextual factors that shaped the local perceptions and practices. This case study employed a qualitative research approach and explored twelve participants’ perceptions and … Lire la suite
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2022 — Spatiotemporal heterogeneity in precipitation and moisture transport over China and their connections with anthropogenic emissions and natural variabilityRésumé
In this dissertation research, the following scientific questions are explored: (i) Has the probability distribution of precipitation over China undergone variations since the midtwentieth century? (ii) How are the above changes related to the modes of climate variability? (iii) Can these changes be attributed to anthropogenic behaviors? (iv) What are the mechanisms for these changes in terms of moisture transport and recycling? Specifically, through quantile regression, the quantile trends in monthly precipitation anomalies over China, as well as the individual and combined quantile effects of teleconnection patterns, are examined. The results show that the quantile trends exhibit apparent seasonal variations, … Lire la suite
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2022 — Further Study of Some Iterative Methods for the Matrix Pth RootRésumé
In this thesis, we solve some problems arising in the study of some iterative methods for finding the principal pth root of a matrix. Our main interest is in Newton's method, Halley's method and Chebyshev's method. We also study Schroder's method (which includes Newton's method and Chebyshev's method as special cases). The study of these methods for the matrix case can be reduced to the study in the scalar case. Some theoretical properties of the iterative methods can be obtained by examining the Taylor series expansion of the iterates. It has been observed by Guo that the Taylor coefficients have … Lire la suite
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2022 — Experiment Study of Non-Equilibrium Phase Behavior and Effect of External Vibration on Heavy Oil ProductionRésumé
In this thesis, two types of heavy oil experiments were explored to study the heavy oil non-equilibrium phase behavior and the influence of external vibration on heavy oil production performance. The first experiment was to use a Constant Composition Expansion and Compression (CCEC) tests to determine the pseudo-bubble point pressure at low (T = 15°C) and high (T = 75°C) temperature environment with three different volume change rates (“Fast Rate” 1.5 cm3/min; “Moderate Rate” 0.015 cm3/min; and “Slow Rate” 0.0003 cm3/min) and three different live heavy oil samples (15 mol% C2H6 + 85 mol% STO; 35 mol% C2H6 + 65 … Lire la suite
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2022 — The lived experience of parental stress of fathers of a child with Autism Spectrum DisorderRésumé
The purpose of this study was to expand the current understanding of father parental stress through an interpretive phenomenological analysis of fathers of children with Autism Spectrum Disorder’s lived experience. Parents of children with Autism Spectrum Disorder have been found to experience higher levels of stress than both parents of typically developing children and all other special needs children that have been researched to date. The experience of parental stress for parents of children with Autism Spectrum Disorder has primarily looked at the experience of mothers, with limited studies exploring the experiences of fathers. The current study interviewed six fathers … Lire la suite
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2022 — The cyclotomic eigenvalue and character value problems for association schemesRésumé
The central focus of this dissertation is an answer to the cyclotomic eigenvalue question (CEQ) for commutative association schemes. This question, which was posed by Simon Norton at Oberwolfach in 1980, asks whether all entries of the character table of a commutative association scheme lie in a cyclotomic extension of the rational numbers. In this thesis, we consider the cyclotomic eigenvalue question for objects that generalize the notion of association schemes. The objects in question are standard integral table algebras with integral multiplicities (SITAwIMs). Our main results show the eigenvalues of SITAwIMs of rank 4 and nonsymmetric ones of rank … Lire la suite
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2022 — Understanding how Saskatchewan parents promote children’s mental health: A grounded theory studyRésumé
This dissertation contributes to MHP scholarship by focusing on how parents from a prairie province in Canada understand and promote their children’s mental health. Middle childhood was chosen because it is a ‘sensitive period’ of human development (DelGuidce, 2018) that is often overlooked and understudied (Montreuil et al., 2018). The salutogenic perspective underpins this research; therefore, the origins of health and how it is promoted were of interest in contrast to the prevention of illness and dis-ease. To guide this inquiry, the qualitative research tradition was chosen, and the constructivist grounded theory methodology served as its roadmap. In total, 23 … Lire la suite
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2022 — Life history traits of Prussian carp (Carassius gibelio) in Saskatchewan, Canada: Age, growth, and reproduction on an advancing invasion frontRésumé
The Prussian carp (Carassius gibelio) is one of the most invasive fish species in Europe, and it was recently discovered in North America in Western Canada. Our knowledge of basic life history parameters, such as growth rate and mode of reproduction for Prussian carp in their new invasive range, is currently limited. In addition, Prussian carp were only recently discovered in Saskatchewan, but how long have they been in the province, and the stage of invasion is uncertain. Prussian carp can use two modes of reproduction: (1) gonochoristic, involving males and females; and (2) gynogenesis, whereby populations consist of only … Lire la suite
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2022 — Assessment of waste management system efficiencies and waste business characteristics of Canadian provincesRésumé
Canadians have one of the highest per capita waste disposal and generation rates globally. Canadians went from disposing 768 kg/persons of waste in 2002 to 689 kg/person of waste with in 2018. In the first part of the study, three waste management system (WMS) efficiency indicators are adopted to systematically assess WMSs efficiency in Canada from 1998 to 2016. The key study objectives are to examine the temporal changes in waste diversion activities and rank the performance of the jurisdictions using a qualitative analytical framework. Increasing Waste-Management-Output-Index trends are identified in all jurisdictions, and more government subsidiaries and incentive packages … Lire la suite
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2022 — Development of a diagnostic approach for early detection and control of amine degradation in an amine-based CO2 capture processRésumé
Chemical absorption of CO2 with aqueous amine-based solvents is considered as one of the current benchmark post-combustion capture technologies mainly because of its high process efficiency. When amines are used to capture CO2 from flue gases, changes in the physical and chemical properties of the solvent may take place over time. The changes in these properties of the amines are manifestations of physical changes such as the differential evaporation of components of the aqueous amine solvents and chemical changes resulting from degradation of the amines. Therefore, if changes of these properties relative to the original solvent properties are monitored during … Lire la suite
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2022 — Phenomenological study of the maternal experiences of women with SchizophreniaRésumé
Managing a mental illness such as schizophrenia or schizoaffective disorder and parenting poses many challenges. The present study used phenomenological methodology along with a poststructural and critical feminist lens to understand the lived experiences of mothers with schizophrenia or schizoaffective disorder. Nine in-depth qualitative interviews and follow up discussions were conducted with participants, finding rich and meaningful descriptions of their experiences. After the data collection period was complete, all interview data was transcribed, and 418 significant statements were identified and coded into eight themes and eighteen subthemes. The mothers in this study highlight the true difficulties of parenting with schizophrenia, … Lire la suite
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2022 — Intrusion detection utilizing latent representations & machine learning for network securityRésumé
Digital devices continue to join our networks. As more devices become connected, and systems grow larger, there is a need for security mechanisms. One method of providing security is to use intrusion detection systems. Intrusion detection systems provide a method of security by utilizing the logs from connected devices to inspect traffic. However, as networks grow, the need for scalable and highly automated systems grows as well. The current state of intrusion detection systems relies on linear and non-linear methods to classify traffic. This traffic is routinely compared as either normal traffic or a variant of an attack. Two of … Lire la suite
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2022 — Design of hygienic blood collection system for poultry slaughterhousesRésumé
Blood collection methods from poultry slaughterhouses are assessed and designed. Specifically, a hygienic method to collect blood with no solid debris has been investigated. The research involved designing, improving and/or selecting the blood collection troughs, pipelines, valves, blood pumps, storage tank and related equipment. The research also involved flow simulations in AnsysTM Fluent. The existing blood collection system in poultry slaughterhouses was reviewed. The slaughterhouse blood uses, equipment needed, blood preservation methods and related processing were also studied. The changes needed were identified and a proposed system was evaluated for both small and large commercial poultry slaughterhouses. The focus was … Lire la suite
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2022 — A community based and mixed-methods approach to exploring the Dove Confident Me five-session body image intervention in a holistic school classroomRésumé
Purpose: Body dissatisfaction is experienced by many adolescents and is linked to mental, physical, and social consequences. Increasing rates of body dissatisfaction amongst adolescents have led to developing teacher-delivered interventions to alleviate the reliance on external providers and increase the accessibility of such interventions. This paper describes a pilot study which explored the delivery of the Dove Confident Me 5-Session Body Confidence Program through a mixed methods approach. In this study, the researcher worked collaboratively with the students and teacher to determine program adaptations needed to elicit positive body image and self-esteem in a classroom in Saskatchewan. Method: This study … Lire la suite
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2022 — A non-linear MPC local planner for tractor-trailer vehicles in forward and backward maneuveringRésumé
Designing a local planner to control a tractor-trailer vehicles in forward and backward maneuvering is a challenging control problem for autonomous driving systems. This thesis considers the critical situation of the stability of tractor-trailer systems. A practical and novel approach is presented to design an non-linear Model Predictive Control (NMPC) local planner for tractor-trailer autonomous vehicles in both forward and backward maneuvering. The tractor’s velocity and steering angle are considered as control variables; the proposed NMPC local planner is designed to handle jackknife situations, to avoid multiple static obstacles, and to path follow a certain path in both forward and … Lire la suite
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2022 — Investigating Rhizobium Leguminosarum Metabolism and Rhizosphere Colonization Using High-Throughput Genomics and Erythritol EnrichmentsRésumé
The demand for sustainable agriculture practices is increasing as conditions related to climate change intensify, and plant-based diets gain in popularity. Rhizobia bacteria are used as inoculants to increase the yield of legume crops by fixing nitrogen in nodules on legume roots; this reduces the use of costly and environmentally harmful nitrogen fertilizers. Erythritol is exudated from legume roots, and is catabolized by Rhizobiaceae genera. The goal of the thesis is to explore how erythritol influences community composition, and to discover novel genes influenced by erythritol catabolism in Rhizobium leguminosarum 3841. Microbial communities from bulk soil, and roots, and nodules … Lire la suite
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2022 — Graphite Doped PAN Nanofiber Mats Infused Polymer Composite Pipeliners: Experimental Diffusion CharacterizationRésumé
The internal corrosion in the pipelines is the most critical factor of any type of pipeline failure. The growing trend to mitigate the internal corrosion in the pipelines using Nanofiber Polymer Composite Liners (NPCL) was investigated in this study. Polyacrylonitrile Nanofiber Polymer Composite Liners (PAN NPCL) and Graphite doped PAN Nanofiber Polymer Composite Liners (Graphite doped PAN NPCL) were fabricated and their absorption characteristics were investigated. PAN Nanofiber and Graphite doped PAN Nanofiber mats were used as an additional reinforcement layer in the Polymer Composite Liners. Three different volume fractions of PAN solution (0.1%, 0.25%, and 0.5%) were used to … Lire la suite
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2022 — Cross product ratio under different sampling schemes and zero truncated negative binomial weighted Weibull distribution with applicationsRésumé
A successful clinical trial requires efficient strategies for enrolling and retaining the study participants. In fact, Global data research suggests that participant enrollment issues are one of the major problems for the clinical trial termination. This thesis aims to compute the point estimators for the cross-product ratio ρ from two independent Bernoulli samples and determine the best sampling scheme. The idea of using Bernoulli samples to conduct clinical trials has been very successful since it is cost effective. Bias and Mean Squared Errors are used as the principal criteria. According to the simulation results, the special case of Direct-Inverse Binomial … Lire la suite
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2022 — A self-organizing map artificial neural network to improve k-means algorithm classification in different cancer typesRésumé
In this thesis, the performance of a specific artificial neural network is introduced. The name of this ANN is Self-Organizing Map artificial neural network (SOM). At first, the performance and accuracy of K-Means algorithm in classification and clustering a complex input data (similarity and dependence) is investigated. Then, the mentioned performance is compared with the performance of SOM ANN in clustering mentioned input data. The performance of K-Means algorithm is presented by acquisitive data and related simulations. The main aim of this thesis, is introducing an appropriate method in order to clustering input data precisely. So, at first the weakness … Lire la suite
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2022 — Extensions of the Erdős-Ko-Rado Theorem to Perfect MatchingsRésumé
One of the important results in extremal set theory is the Erdős-Ko-Rado (EKR) theorem which gives a tight upper bound on the size of intersecting sets. The focus of this thesis is on extensions of the EKR theorem to perfect matchings and uniform set partitions. Two perfect matchings are said to be t-intersecting if they have at least t edges in common. In 2017, Godsil and Meagher algebraically proved the EKR theorem for intersecting perfect matchings on the complete graph with 2k vertices. In 2017, Lindzey presented an asymptotic refinement of the EKR theorem on perfect matchings. In this thesis, … Lire la suite
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2022 — Exploring the experiences of women in leadership positions at a higher education institution in south-eastern Nigeria: A phenomenological studyRésumé
This phenomenological study explored the experiences of five women in leadership positions at Michael University, which is a federal higher institution in Southeastern Nigeria. I embarked on this journey because of my interest in understanding how women who have broken the “glass ceiling” (Yukl & Gardner, 2020) experienced leadership at the studied institution. The theoretical framework for the study was guided by Joan Acker’s (1990) theory of gendered organizations. According to Acker, one of the processes in which organizations are gendered is through divisions of labor between men and women, including institutionalized means of maintaining those divisions in institutions. Further, … Lire la suite
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2022 — The relationship between neurocognitive performance and sport-related musculoskeletal injuryRésumé
Background: The number of sport-related musculoskeletal (MSK) injuries continues to rise even with an increase in prevention programs. The potential relationship between neurocognitive performance and sport-related MSK injury has begun to emerge in the literature, with results suggesting that athletes with lower baseline neurocognition sustain more injuries compared to those with higher baseline neurocognition. Purpose: This study aims to build on the previous literature by investigating this relationship while controlling for variables that have been well-documented as predisposing factors for injury (i.e., previous MSK and brain injury). Methods: A total of 87 participants from the University of Regina Rams football … Lire la suite
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2022 — Potential Impacts of Zebra Mussel Invasion on Gamefish Health and Prey Availability in Prairie LakesRésumé
Invasive species are a threat to global aquatic ecosystems. Nonetheless, their impacts can be heterogeneous across systems. Recent reports suggest Saskatchewan (SK) prairie lakes are highly prone to zebra and quagga mussels (ZQM) given their proximity to invasive corridors of Manitoba and three US states (Montana, North Dakota, and Minnesota) where they have been reported. As the effect of ZQM on native species is variable and context-dependent across locations and time, an understanding of prevailing biological, physical and chemical conditions supporting various cohorts of fish communities is necessary for prioritizing mitigation efforts to address the potential effects of these dreissenids … Lire la suite
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2022 — The Indian solution to the policy problem: Articulating Indigenous and colonial policymaking models using an Indigenous lensRésumé
A defining feature of the post-contact policymaking era between Western colonial governments and Indigenous communities was the creation of the so-called “Indian problem” as an actual phrase used within colonial governments (Satzewich 1997; Episkenew 2009; Erasmus 2003). More than a phrase though, the “Indian problem: was the misidentification of an issue that defined the relationship between Indigenous people and the colonial government from that point forward and it is the basic premise of all the paternalistic policies Indigenous people are still subject to in Canada, such as the Indian Act (1985). Though often referred to, the concept of the “Indian … Lire la suite
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2022 — An efficient Internet of Things (IoT) device fingerprinting approach using machine learningRésumé
Internet of Things (IoT) usage is steadily becoming a way of life. IoT devices have applications in smart homes, factories, and farming. Thousands of IoT devices are hooked up to the cyberspace each day. However, the increased usage of IoT devices comes with many security concerns due to their small and constrained build-up; consequently, perpetrators could target an IoT device as an access point to attack the whole network. Further, the number of IoT device manufacturers keeps expanding by the day, although a high number of these manufacturers have less or little knowledge about IoT security. Therefore, a comprised IoT … Lire la suite
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2022 — "Chew and pour learning strategy": A co-participant's account in a collaborative narrative research to examine learning challengesRésumé
This collaborative narrative research study explores the experiences of three co-participants who studied at different locations in the Ashanti Region of Ghana. The three co-participants include myself, researcher and two of my former junior high school students. I purposively selected my co-participants. The sample comprised of Boateng and Ntim who were students at two of the three respective junior high schools in which I taught. Drawing on two theoretical frameworks, critical-constructivism (Kincheloe, 2005), and language and symbolic power (Bourdieu, 1971; 1990), this study explores stories shared by the co-participants to identify learning challenges and successes over the use of English … Lire la suite
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2022 — Machine learning enabled wireless sensor network for partial discharge detectionRésumé
Partial Discharge (PD) is one of the leading causes of failure in high voltage electrical equipment, making it an important metric for predictive and preventative maintenance. Early detection of PD and corresponding maintenance can prevent catastrophic failures and improve safety and reliability. PD occurs when insulation between conductors is partially bridged causing electrical stress on the surface of the insulation. The PD phenomenon typically results in pulses of duration 1 μs or less. PD can be monitored using Off-line and On-line methods. While on-line is a more attractive option as it does not require system downtime. Some On-line methods include … Lire la suite
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2022 — Implementation of crystal mapping and energy calibration procedures for PET block detectors with pixelated scintillatorsRésumé
The prevailing high-resolution Positron Emission Tomography (PET) block detector architecture uses pixelated scintillating crystals coupled to a position sensitive photomultiplier tube (PS-PMTs) or a silicon photomultiplier (SiPM) array. In such detector designs a light guide layer between the finely segmented scintillating crystal array and coarsely segmented photosensitive layer is introduced, which allows to distribute the scintillation light over several elements of the photosensor. Commonly, such detectors employ some form of analog signal multiplexing to minimize the number of readout electronics channels and employ Center of Gravity (CoG) approach to calculate the positions of gamma ray interactions. The list mode data … Lire la suite
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2022 — Aquatic ecosystems’ responses to past human activities in the neotropicsRésumé
Lake systems are essential for the environment and human populations. Nevertheless, human activities have strongly modified aquatic ecosystems, and many lakes have been affected by anthropogenic stressors, including eutrophication, acidification, increased sediment load, among others. In the last years, the study of the environmental history of lakes has increased, as well as the need for assessing the changes due to anthropogenic activities on aquatic systems. However, the information about how freshwater ecosystems in the neotropics have responded to natural forcings e.g., climate variations and or anthropogenic activities, is still scarce. Sediments accumulated in lakes provide a useful archive that can … Lire la suite
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2022 — Magic is might?: Uncovering abjection in Shakespeare's The Tempest and J.K Rowling's Harry Potter seriesRésumé
This thesis begins with an analysis of the two focal point statues in the Ministry of Magic from the Harry Potter series: The Fountain of Magical Brethren and the Magic is Might statue. This analysis prompts the questions that this thesis will answer: how does magic create might if it is contingent on never completing the acts that represent that might? Furthermore, how is this system created and how is this system upheld if it is not able to fully get rid of the challenges to its order? In answering these questions, this thesis will not only look at the … Lire la suite
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2022 — Professional Practice Competencies of Social Workers Employed in Mental Health and Addiction Settings within Saskatchewan: A Phenomenological InquiryRésumé
Historically, competencies have been viewed to primarily capture practice knowledge, core behaviors and skills needed in a wide range of professions. Holistic competence is a multidimensional model that refers to practice-based competencies such as knowledge, skills and abilities but also includes a set of higher-level competencies or meta-competencies such as self-reflection, professional judgement, and self-confidence. The most critical component of meta-competencies is self-reflection. However, there are gaps in research related to holistic competencies used by frontline social work practitioners. The purpose of this descriptive phenomenological approach was to explore the perceptions and attitudes related to self-reflection among social workers who … Lire la suite
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2022 — A study of mirrors for an Aerogel Ring Imaging Cherenkov detectorRésumé
In this thesis, I present a study of the mirror system for the Aerogel Ring Imaging Cherenkov device (ARICH). The ARICH will be installed in the Experiment to Measure the Production of Hadrons At a Testbeam in Chicagoland (EMPHATIC) whose goal is to measure hadron scattering and production cross sections on a broad range of nuclear targets with different beam momenta that are important for neutrino production at the GeV scale. These measurements will be relevant for the Tokai to Kamioka (T2K) and the upcoming Hyper-Kamiokande Experiment (Hyper-K) and the Fermilab-based Deep Underground Neutrino Experiment (DUNE). This thesis demonstrates that … Lire la suite
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2022 — Examining Motivational Interviewing and Booster Sessions in Internet-Delivered Cognitive Behaviour Therapy for Post- Secondary Students: An Implementation TrialRésumé
Approximately one in three post-secondary students experience clinical levels of anxiety or depression during their academic career, with many students not receiving treatment. Internet-delivered cognitive behaviour therapy (ICBT) is an alternative to face-to-face services that is effective in general adult populations, but has been associated with high attrition rates and smaller effect sizes in student populations. In this implementation trial, the efficacy and uptake of an ICBT course for anxiety and depression (i.e. the UniWellbeing Course) was examined in Saskatchewan. Given the evidence from the face-to-face literature, the role of motivational interviewing (MI) and booster lessons was also examined. Using … Lire la suite
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2022 — Customer satisfaction as a critical success factor for ERP designRésumé
Enterprise Resource Planning (ERP) has been an important tool over the last number of years in managing business processes for large corporations. An ERP is a software system that links various departments and allows them to work together through a centralized software system. An example would be a hotel management ERP where multiple departments such as accounting, front desk, housekeeping and human resources share vital business information. However, more research needs to be done on ERP initiatives for small to midsized enterprises (SME) to also help them reach their productivity goals effectively. This is, in part, the motivation behind this … Lire la suite
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2022 — Motivators of recreational Cannabis consumption in CanadaRésumé
Using Canada’s National Cannabis Survey, we analyze the behaviour of self-reported consumers and non-consumers of both legal and illicit recreational cannabis, post-legalization. Using a two-part hurdle model, we find that: males are more likely to consume legal cannabis than not consume at all, but are not more likely to consume illicit cannabis than none at all; and that teens are more likely to consume illicit cannabis and less likely to consume legal cannabis. Once consuming, males consume the same amount of illicit cannabis as non-males, but more legal cannabis than non-males. Being retired or being unemployed have no effect on … Lire la suite
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2022 — Video self-modeling: An individualized strength-based strategy for supporting the independent transitioning of a child with Autism Spectrum DisorderRésumé
Children with Autism Spectrum Disorder (ASD) frequently experience difficulties in situations that involve change within their environment and/or changes to their daily routine, and this often manifests in resistance to change. Transitions occur numerous times a day and across multiple settings. The aim of this study was to evaluate the efficacy of Video Self-Modeling (VSM) to support the independent transitioning of a 9-year-old child with ASD who struggles with morning transitions in her home. Results indicated that VSM was highly effective in assisting this child to increase the frequency of independent transitions while simultaneously decreasing the number of challenging behaviours … Lire la suite
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2022 — Experimental study on enhanced shale gas recovery by CO2 injection under high temperature and pressure conditionsRésumé
Shale gas development is a key growth point for the future energy industry. Many scholars have used continuous gas injection by carbon dioxide (CO2) to study enhanced gas recovery on crushed powdered shale samples, but few researchers use the production methods, such as Huff-N-Puff gas injection. Thus, it is necessary to compare and study the efficiency of various shale gas extraction methods. In addition, in the process of shale gas exploitation, many factors affect methane (CH4) recovery, but the degree of influence of these factors is not completely understood. This research will focus on the effects of fracture distribution and … Lire la suite