Liste complète
La lecture de ces thèses nécessite une redirection vers le site du dépôt institutionnel.
-
2021 — Les technologies de l’information et de la communication dans l’apprentissage du français au NigeriaRésumé
The learning of French as a foreign language has been influenced by Information and Communication Technology (ICT) in recent years. Some technologies became absorbed into emerging new ones, while others were born as a result of societal demands. With this current reality, the place of ICT in learning French as a foreign language has become inevitable. These recent developments are however hardly visible in Nigeria, a country where pedagogical practices, especially with regard to ICT, are affected by constraints such as lack of adequate technological equipment and poor practices of integrating multimedia. These problems do not give rise to innovative … Lire la suite
-
2016 — Analytical and Semi-Analytical Models for Composite Reservoirs with Complex Well CompletionsRésumé
With the current increasing productivity and the proliferation of shale and tight sand resource plays in Canada, and North America in general, the need to understand and characterize these resource plays, for the purpose of recovery optimization, has taken center stage in reservoir management. It is, however, important to note that these hydrocarbon environments are fundamentally different from conventional reservoirs for which there is an abundance of high-yield technical know-how. In a technical sense, these plays are not reservoirs but source rocks; their permeabilities are in the micro- to nano-darcy range. Hence, they cannot sustain economic hydrocarbon production unless they … Lire la suite
-
2017 — Le mot et sa définition: Le cas des verbes préfixésRésumé
Au fil des siècles, des arguments linguistiques ont mis en avant que le concept d'un «mot» ou de son «usage» est problématique. Les perspectives et les présentations linguistiques ont argumenté et analysé que le"mot" dans la formation, la définition, l'expression, la traduction et dans beaucoup d'autres usages est ambigu. On soutient que ce qui est connu sous le nom "mot" dans la linguistique générale est appelé “unité lexical” en lexicologie et “terme”en terminologie, et ce, dans une tentative d'éviter la confusion associée à l'utilisation du "mot". La littérature linguistique disponible explique en outre que la nature problématique du «mot» s’étend … Lire la suite
-
2022 — A study of factors influencing cyberattacksRésumé
There has been a substantial global cyberattack evolution and Internet Use revolution during the current Coronavirus pandemic, consequently forcing countries across the globe to begin reviewing their national cybersecurity strategies. However, to adequately minimize the risks of future attacks and associated losses, new and/or contemporary cyberattack studies are required, particularly at the country level. This research examines the chances of attack initiation, during the present Coronavirus pandemic, indicated in this study by Country-Level Cyberattacks (CLCA) and how it is affected by Country-Level Internet Use (CLIU), a technological Country-Level Influential Factor (CLIF). It presents a quantitative, nonexperimental, correlational approach that examines … Lire la suite
-
2022 — The Immigrant Mothers' Experience of their Children's Heritage Language LossRésumé
Through this qualitative research project, I investigated how immigrant mothers experience their children’s heritage language loss; what emotions, feelings, and attitudes they experienced, how they navigated their children’s heritage language loss, what strategies they used, and what were some of the possible consequences of not having a shared language on the maternal relationship between mother and child? Using a case study research methodology and narrative analysis, I interviewed two immigrant mothers about their children’s heritage language experience in Canada. The findings of this study indicate that language is fluid, that it can be learned and lost at any age by … Lire la suite
-
2017 — Detection of Textureless Occluded Objects by Deformable Part ModelsRésumé
Detection of objects in images has been a popular area of research in computer vision. Researchers have been working on the automatic detection of both fully visible and occluded objects. In this thesis work, detection of occluded objects is further examined. This work targets occluded objects which are simple in shape and do not contain complex textures. Texture-rich objects are, in general, more easily detected; but occlusion of texture-less objects is a more challenging task. In this work we focus on the texture-free occluded images of mugs and cups. This thesis examines the effectiveness of part-based detection technique for the … Lire la suite
-
2023 — Sedimentologic and lithostratigraphic properties and reservoir characterization of the Winnipeg Formation, Southern SaskatchewanRésumé
The Winnipeg Formation is a Late Ordovician siliciclastic unit that occurs in subsurface of SE Saskatchewan. Deposition of the formation took place on the northern shelf of the sub-circular intracratonic Williston Basin. In the study area, the formation consists of two members: a lower sandstone-dominated Black Island Member and an upper shale-dominated Icebox Member. Core and well-log data from twenty-one wells, along with a detailed petrographic study of rock samples from the cores, have been collected, described, integrated, and interpreted. Textural properties, sedimentary structures, temporal stacking nature of the various lithofacies, and spatial correlation of the logged sections are significant … Lire la suite
-
2024 — Exploring the impact of limited information in active Bayesian learningRésumé
We tackle the problem of Noisy Bayesian Active Learning in a limited information setting. Originally explored by Cecchi and Hegde1 , this problem involves a Bayesian learner that sequentially selects oracles to determine the true class label of an incoming object, with the goal of minimizing the number of samples while maintaining a low error probability. The oracle's response is not a direct class label but a cluster label that is corrupted by noise. Additionally, the learner is only given an estimate of the true quality of those responses. We extend Cecchi and Hegde's framework to a more general scenario, … Lire la suite
-
2018 — Detection of Texture-less Occluded Objects Using Deep Convolutional Neural NetworksRésumé
Nowadays, modern object classification algorithms can outsmart humans for classification of simple non-occluded objects. Machines, however, are still unable to accomplish complex tasks, such as classification and localization of occluded objects with precision, which human beings can easily perform. In order to achieve this task, convolutional neural networks based object detection algorithms have recently opened a new avenue towards the object detection with high precision. The convolutional neural networks require a large amount of training data to train system for classification and localization. However, the main objective of this thesis is to examine the convolutional neural network based object detection … Lire la suite
-
2020 — Writing and Teaching Curriculum With Relationships in Our Place: A Critical Meta-analysis of Saskatchewan Core French Curricula's Cultural IndicatorsRésumé
In 2011, The Core French curriculum for Levels 1 through 5 were renewed; and Levels 6 through 9 were renewed in 2012. In 2015, the Truth and Reconciliation Committee of Canada released 94 Calls to Action to address the legacy residential schools left on Canadian Indigenous peoples, as well as to move Canada forward in reconciliation. In education, there are seven calls to action related to legacy and four calls to action related to reconciliation. Using document analysis methodology and honouring Indigenous methodology as theoretical frameworks, I organized two focus group interviews to examine if the Saskatchewan Core French Level … Lire la suite
-
2019 — The Impact of Cognitive Distortions on Negative Social Comparisons and Depressive Symptoms: Six-Month Longitudinal StudyRésumé
Depression is a debilitating mental disorder associated with impairment in social, family, and educational functioning, along with higher rates of comorbid anxiety disorders, poorer physical health, and a decrease in overall quality of life. The predictive cognitive model of depression states that negative cognitions may increase the risk of developing depression. However, there remains a lack of longitudinal studies examining whether baseline negative cognitions predict follow-up levels of depression. Consistent with the cognitive theory of depression, biased interpretations of the external world may be associated with increased negative social comparisons among individuals with a vulnerability to depression, which may in … Lire la suite
-
2023 — Quantification of crops' consistency on corn fields using robust deep learning modelsRésumé
Inconsistent crops across large fields lead to lower overall crop productivity. Traditional methods for evaluating the consistency of crops, such as manual inspection of a predefined sample area to determine plant stand count, crop coverage, and spacing, are time-consuming and inaccurate, leading to insufficient analysis of the crops’ status and poor decision-making. Despite the recent technological advancement in the agricultural management system, an automated approach to assess multiple parameters has not been thoroughly explored. This thesis aims to develop a vision-based framework to identify uneven crop distribution areas and quantify the consistency of crops across different fields under natural conditions. … Lire la suite
-
2024 — Search Timelines: Contextualized search history in support of exploratory searchRésumé
The timespan over which exploratory searching can occur, as well as the scope and volume of the search activities undertaken, can make it difficult for searchers to remember key details about their complex search tasks. These difficulties are present both during a single search session and when resuming a search task that spans multiple sessions. Existing public digital library search interfaces do not provide adequate support to allow patrons to pursue a complex search task for a prolonged period across multiple sessions. In this thesis, I present a novel search interface designed to support cross-session exploratory search in a public … Lire la suite
-
2017 — On A Statistical Test To Discriminate Lifetime DistributionsRésumé
Gamma, Weibull and Generalized Exponential distribution have been widely used in analyzing lifetime data in various aspect of professions. Model specifi- cation plays an importance role in this regard. The liability theorem used in analyzing data has a significant impact on the submission of statistical inference. The effect of model misspecification can be quite severe. Hence, this triggered the need to discriminate liability models for correct model specification in lifetime analysis. This thesis investigates the consistency of statistical test on sample data to be taken from one of the distributions of Reliability Theory. The test is based on the ratio … Lire la suite
-
2016 — Characterization and Behaviour of Clayey SlurriesRésumé
The purpose of this research is to develop a fundamental understanding of the characteristics and behaviour of clayey slurries. A comprehensive research methodology consisting of laboratory investigations and computational analyses was adopted. A clayey slurry (uranium leach residue) was selected from the extraction process to capture the distinct slurry features at the onset of deposition. The practical impact of this research is that the investigated slurry (new waste stream) exhibited various components of settling that are important for developing depositional plans and determining storage capacity of the containment facility. Likewise, the scientific contribution is the understanding that solid-liquid composition influences … Lire la suite
-
2015 — Fatigue in Parents of Children with Autism Spectrum Disorder: The Role of Parental and Child Factors for Mothers and FathersRésumé
This study examined child and parental factors associated with fatigue in parents of children with Autism Spectrum Disorders (ASDs) by using the Middle-Range Theory of Unpleasant Symptoms (TOUS) model. The research was designed to 1) extend our understanding of fatigue in parents of children with a diagnosis of ASDs by investigating fatigue in both mothers and fathers, and 2) identify and examine the associations between psychological, physiological, parental situational, and child-based situational factors. Mothers (N = 78) and fathers (N = 34) of children with ASDs aged 2-12 years were recruited from across Canada. Participants completed a confidential questionnaire battery … Lire la suite
-
2021 — Canadian Matchmakers: How Early 1900s Colonial Racist Policies United Indigenous Women and Chinese Bachelors on the PrairiesRésumé
Canadian government legislation implemented policies in the early 1900s that facilitated inter-racial marriages between Indigenous women and Chinese bachelors. Foreign workers were over-recruited from China, to migrate to Canada, to support the development of the railway system. To deal with this "perceived" over-population Canada began implementing racist policies that included intentional deterring of Chinese men from bringing their families with them to Canada. My research focuses on the consequences of these racist policies designed to keep Canada a white, British nation. This narrative inquiry qualitative research includes two participants’ who are descendants of these marriages. Using an Indigenous feminist and … Lire la suite
-
2020 — Corrosion Inhibition Performance of Sulfur and Nitrogen Based Environmentally Friendly Inhibitors for CO2 Absorption PlantsRésumé
One of the important steps in carbon capture and storage (CCS) is the absorption of carbon dioxide (CO2) from flue gases by aqueous solutions of amines. This process is susceptible to severe corrosion of plant equipment which is typically mitigated by using corrosion resistant materials or corrosion inhibitors or the combination of both. With more stringent environmental regulations on chemical use, treatment and disposal, there is a pressing need to replace inorganic heavy metal corrosion inhibitors that are commonly used in this process with environmentally friendly inhibitors that provide comparable inhibition performance. In this work, two organic compounds, namely dimercaptosuccinic … Lire la suite
-
2016 — Representations of McLain GroupsRésumé
Basic modules of McLain groups are defined and investigated. These are a (possibly infinite dimensional) generalization of Andre’s basic modules of the multiplicative group of upper triangular square matrices over a finite field with 1’s on the main diagonal. The ring R need not be finite or commutative and modules of a McLain group are allowed to be infinite dimensional over an arbitrary field F. The set , totally ordered by , is allowed to be infinite. We show that distinct basic modules are disjoint, determine the dimension of the endomorphism algebra of a basic module, find when a basic … Lire la suite