cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The physical activity parenting practices (PAPP) item Bank: a psychometrically validated tool for improving the measurement of physical activity parenting practices of parents of 5–12-year-old children
Creators: name: Mâsse, Louise C.
name: O'Connor, Teresia M.
name: Lin, Yingyi
name: Carbert, Nicole S.
name: Hughes, Sheryl O.
name: Baranowski, Tom
name: Beauchamp, Mark R. (Mark Robert), 1972-
Publisher: name: BioMed Central
Year: 2020

description: Background: Many tools have been developed to measure physical activity parenting practices (PAPP). Currently, there is little standardization on how PAPP constructs are operationalized for 5–12 year-old children. Given this lack of consistency our team have started the process of standardizing the measurement of PAPP by developing an item bank which was conceptually informed by 24 experts from 6 countries. Purpose: The purpose of this paper is to present the psychometric properties of the PAPP item bank using the expert-informed PAPP conceptual framework. Methods: A sample (N = 626) of Canadian parents completed the PAPP item bank (100 items measuring 12 constructs). Confirmatory Factor Analyses (CFA), confirmatory bi-factor item analyses, and Item Response Modeling (IRM) were used to assess the structural validity of scores derived from the PAPP item bank. Differential Item Functioning (DIF) and Differential Response Functioning (DRF) were used to determine whether the PAPP items are invariant by parent sex, ethnicity of parent, and household income. Finally, Computerized Adaptive Testing (CAT) simulations were used to determine the efficiency of the item bank – this involved ascertaining whether each construct can be assessed with fewer items. Results: The PAPP expert-informed conceptual framework was mainly supported by the CFA analyses. Notable changes included: a) collapsing smaller constructs into one general construct (modeling, co-participation, and monitoring constructs were collapsed into a construct assessing nondirective support); or b) splitting a construct into two smaller constructs (restrict for safety reason construct was split into indoor physical activity restriction and allowance for unsupervised outside physical activity). While the CFA analyses supported the structural validity of 11 constructs, the bi-factor item analyses and IRM analyses supported collapsing correlated constructs into more general constructs. These analyses further reduced the number of constructs measured by the PAPP item bank to nine constructs (65 items – reliability ranging from .79 to .94). As seven of the PAPP constructs had reliability greater than .80, CAT simulations further reduced the number of items to 31 items. Conclusion: Overall, the PAPP item bank has excellent psychometric properties and provides an efficient way to assess PAPP.
Aging with Developmental Disabilities: Implications for Long-term Care
Creators: name: Dorrance, Kristin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Developmental Disability
Aging
Long-term Care
Cerebral Palsy
Assistive Technology

description: Background: Persons with developmental disabilities (DDs) represent about 1-3% of the total population in Canada; however, very little statistical data exists regarding this population in the context of long-term care (LTC). As the life expectation of these individuals increases, the distinct needs they have that are associated with aging should be addressed in LTC to help improve the quality and relevancy of the care they receive. Methods: An exploratory qualitative study. Semi-structured interviews were conducted. Open coding of interview transcripts, and content analysis was completed. Descriptive statistics of the sample were calculated using Excel. Results: All participants had experienced earlier functional decline which resulted in changes in their care needs. Often this meant needing to change their assistive devices. Many participants feared losing their independence as they aged. Conclusion: There is insufficient understanding of the unique needs that face people aging with DDs or how they access LTC. The preference for these individuals is to age in place, their independence must be maintained in order for this to be successful. Three factors help to facilitate this: assistive devices, attendant care and accessibility of health care services. Contexte: Les personnes ayant un handicaps developmental représentent environ 1-3% de la population totale au Canada. Cependant, très peu de données statistiques concernant cette population existent dans le contexte de soins de longue durée. L’espérance de vie de ces personnes augmente, les besoins distincts associés au vieillissement devraient être examinés pour aider à améliorer la qualité et la pertinence des soins qu'ils reçoivent dans les soins de longue durée. Méthodes: Une étude qualitative exploratoire. Des entrevues semi-structurées ont été menées. Les transcriptions d'entrevues ont été codées en utilisant un style de codage ouvert et l'analyse de contenu a été accomplie. Les statistiques descriptives des participants ont été calculées. Résultats: Plusieurs thèmes sont devenus apparents. Tous les participants avaient connu un déclin fonctionnel à un jeune âge qui a entraîné des changements dans leurs besoins de soins. Souvent, cela signifit avoir à changer leurs appareils et accessoires fonctionnels. De nombreux participants craignaient de perdre leur indépendance en vieillissant. Conclusion: Il y a une méconnaissance des besoins uniques auxquels font face les personnes vieillissant avec un handicap developmental et la façon dont ils accident aux soins de longue durée. La préférence pour ces personnes est de viellir en place, leur indépendance devant être maintenue pour que ce soit un succès. Trois facteurs contribuent à faciliter ceci: les appareils et accessoires fonctionnels, les soins auxiliaires et l'accessibilité aux services santé.
Spatially Induced Independence and Concurrency within Presheaves of Labelled Transition Systems
Creators: name: Fortier-Garceau, Simon
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: concurrency
labelled transition systems
spatial independence
presheaf
presheaves
induced independence

description: In this thesis, we demonstrate how presheaves of labelled transition systems (LTS) acquire a very natural form of spatially induced independence on their actions when we allow a minimal amount of gluing on selected transitions within such systems. This gluing condition is characterized in the new model of LTS-adapted presheaf, and we also make use of the new model of asynchronous labelled transition system with equivalence (ALTSE) to characterize independence on actions. As such, our main result, the Theorem of Spatially Induced Independence, establishes functors from the categories of LTS-adapted presheaves to the categories of ALTSE-valued presheaves; it is a result that extends a proposition of Malcolm [SSTS] in the context of LTS-valued sheaves on complete Heyting algebras.
White Skin, Red Meat: Analyzing Representations of Meat Consumption for their Racialized, Gendered, and Colonial Connotations
Creators: name: Neron, Brittany
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: meat consumption
critical animal studies
masculinity
gender
post-colonial
critical race theory
whiteness
multiculturalism

description: This thesis extrapolates upon theoretical examinations of meat consumption as linked to masculinity in order to consider how meat consumption may also be connected to dominant themes in Canada’s national foundation as marked by whiteness, multiculturalism, and post-coloniality. I investigate two sets of advertisements – Maple Leaf Canada’s “Feeding the Country” commercial, and Alberta Beef Producer’s Raised Right online campaign – through employing multimodal critical discourse analysis and tenets of Stuart Hall’s theories of representations. In doing so, I argue that meat consumption is depicted in advertising as an ideologically and symbolically loaded practice that seizes upon and re-articulates greater themes of Canadian national identity in a way that denotes the nation as having overcome its racial tensions and colonial history.
Retinoid-mediated Regulation of NR6A1, Prickle1 and Ror2 During Development of the Mouse Embryo
Creators: name: Edey, Caitlin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Retinoic Acid
RARg
Mouse Development
Gene activation

description: Vitamin A and its derivatives, collectively termed retinoids, are essential for proper growth and development as well as maintenance of homeostasis in the adult. Retinoic acid (RA), the major biologically active vitamin A metabolite, is well characterized for its crucial roles in gene activation during embryogenesis. Our lab had previously performed a microarray analysis to identify genes induced by exogenous RA in the tailbud of early mouse embryos. Three genes were chosen from the microarray results for further investigation; Germ Cell Nuclear Factor (GCNF/NR6A1), Prickle1 (Pk1) and Ror2, the latter of which are known members of the planar cell polarity (PCP) pathway. These genes were further examined for RA regulation by embryo culture and RT-PCR, which strongly supported a direct regulatory mechanism of NR6A1 by RA. Further analysis aiming to identify a functional response element in the promoter of the targets was attempted, including chromatin immunoprecipitation (ChIP), made possible by the generation and characterization of a highly specific antibody against RARγ. This antibody was used in a ChIP promoter walk, which identified regions on target gene promoters that are occupied by RARγ in vivo, and therefore likely harbor RA response elements.
Analyzing Injury in Canadian Youth Ice Hockey through a Mixed Method Observational Design: Moving Beyond the Mechanisms of Injury to the Socio-Cultural Complexities of Implementing Injury Prevention Strategies
Creators: name: Adams, Stephen
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Ice Hockey
Youth Sport
Recreation
Observation
Injury Reporting
Injury Prevention and Safety
Discourse

description: Ice hockey is a sport known for its speed and skill. However, its intensely physical nature is associated with the potential risk of injury, which has become a major public controversy in Canada (Cusimano, Sharma, Lawrence, et al., 2013; Emery et al., 2010). Epidemiological research has adequately documented the frequency and severity of injury (King & LeBlanc, 2006; Yard & Comstock, 2006). Yet, because of methodological limitations and the lack of systematic and mandatory injury prevention strategies implemented nationwide, injuries remain high (Cusimano, Nastis, & Zuccaro, 2013; Emery et al, 2010). An alternative methodology, combined with broadening injury definitions can provide a more detailed assessment of the risks of, and circumstances, around injury. A methodology, based primarily on observational techniques, was utilized to examine injury in body checking hockey when it is first introduced to youth players. Injury was defined as ‘any physical trauma that has occurred as a result of participation in an organized competition’ including four categories of injury severity. In a comparison of Ontario Peewee (ages 11-12) with Québec Bantam (ages 13-14) boys hockey, no significant differences were found in overall injury (χ2: 0.22; p:0.64), however, there were significant differences in frequency of body checking related injury; 76% versus 59% (χ2:4.76; p:0.03). The odds of being injured due to body checking are 2.158 times higher in Peewee (βex 2.158; 95%CI: 1.07-4.34; p:0.03) indicating no increased risk of injury when body checking is introduced later while delaying introduction reduces the frequency of body checking related injury. Ongoing public debate in Canada concerning safety in youth hockey is understood through the theoretical lens of discourse (Foucault, 1972, 1990). The dominant discourse in Canada around hockey is based in a traditional, physically dominant model, where intense physical contact is not only inevitable but desirable. The reverse discourse prioritizes the safety of participants over the potential of lessening the intense physicality of the Canadian style of play. These competing discourses create tension and ambivalence amongst safety advocates and conservative hockey practitioners and enthusiasts. The emotionality of hockey stakeholders often overwhelms logic regarding safety decisions, ultimately impacting progressive injury prevention initiatives.
Tox-Box
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2013

description: This article introduces ´Tox-Box, a joint research project designed to develop a holistic approach towards a harmonized testing strategy for exposure- and hazard-based risk management of anthropogenic trace substances in drinking water to secure a long-term drinking water supply. The main task of the Tox-Box consortium is to enhance the existing health-related indicator value concept (German: GOW-Konzept - Gesundheitlicher Orientierungswert) through development and prioritization of additional end point-related testing strategies for genotoxicity, neurotoxicity, germ cell damage, and endocrine effects. In this context, substance-specific modes of action will be identified and characterized. Toxicological data collected by the 12 Tox-Box subprojects will be evaluated and weighted to structure a hierarchical testing strategy for an improved risk assessment. A technical guidance document for exposure and hazard-based risk management of anthropogenic trace substances in drinking water will eventually be prepared.
© enveurope.com
Proteomic Characterization of Hemogen in Erythropoiesis
Creators: name: Somasundaram, Brinda
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Hemgn
Proteomic Characterization
erythropoiesis
transcription regulation
b-globin

description: Hemogen (Hemgn) is reported as a tissue specific transcriptional regulator in testis as well as hematopoietic tissues. It is known that Hemgn positively regulates erythroid differentiation; however,the underlying molecular mechanism is not well understood. In the current study, using proteomic approach in combination with other molecular biology tools,we have attempted to decipher the role of Hemgn in differentiating Murine erythroblast leukemia (MEL) cells as a model system. Our study reveals that Hemgn predominantly interacts with transcriptional regulators, chromatin modifiers and histones. Furthermore, using Chromatin Immunoprecipitation and knockdown approach, we have demonstrated that Hemgn is recruited to the b-globin locus, which is known to be activated during erythroid differentiation. Based on the results,we speculate that Hemgn acts as a tissue specific histone chaperone that regulates transcription during erythroid differentiation.
Gold(I)-Catalyzed Synthesis of Polycyclic Frameworks Related to Terpenes: Selective Divergent Synthesis of Fused Carbocycles
Creators: name: Barabe, Francis
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: gold(I)-catalysis
carbocyclization
fused carbocycles
bridged carbocycles
PPAP natural product
silver(I)-catalysis
copper(I)-catalysis
tandem reaction

description: Gold catalysis has become an important tool to achieve highly chemoselective p-acid activation. Exceptional reactivity and selectivity are often encountered under mild reaction conditions. These properties have made gold(I) complexes suitable catalysts for tremendous applications in the total synthesis of natural products. The first chapter will highlight a number of total syntheses using gold catalysis as a key step. The second chapter will cover our application of the gold(I)-catalyzed 6-endo-dig carbocyclization for the synthesis of bridgehead-substituted scaffolds and its use toward the synthesis of PPAP natural products. This research has opened our eyes to the utility of biphenylphosphine ligands, particularly JohnPhos, in gold(I)-catalysis. The reactivity and selectivity exhibited by gold(I) complexes is modulated by the nature of the ancillary ligand. Recent research rationalizes the impact of these ligands on the divergent reactivity observed between cationic and carbenoid intermediates. Our desire to favor the 6-endo-dig pathway has led us toward the discovery of another example of the diagonal reactivity that NHC carbene and biphenylphosphine ligands can bring to gold(I)-catalysis. Chapter three will explain the development of a selective gold-catalyzed synthesis of fused carbocycles . Our selective divergent synthesis of fused carbocycles, combined with the Diels–Alder reaction, has brought new synthetic opportunities. Chapter four will describe our approach toward the synthesis of various polycyclic diterpene-related frameworks. Starting with a unique linear precursor, we have developed a new “one-pot” process for the synthesis of three different polycyclic compounds related to the terpenoid family. The facile modulation of the linear precursor and the use of different dienophiles during the Diels–Alder reaction could enable the synthesis of diverse polycyclic analogues based on three principal frameworks. The gold(I)-catalyzed synthesis of fused carbocycles reached some limitations during our study. Regioselective control was found to be substantially more challenging, with terminal alkynes or alkynes bearing a sterically and electronically neutral methyl substituent. In chapter five, we will discuss how the complementarity of silver(I) catalysis to gold(I) catalysis enabled the selective divergent synthesis of three different fused carbocycles from a unique precursor. Moreover, copper(I) catalysis has given access to the 6-endo-dig pathway on terminal alkynes without the formation of a vinylidene intermediate.
Serotonin as a Regulator of the Hypothalamic-Pituitary-Interrenal Axis in Rainbow Trout (Oncorhynchus mykiss)
Creators: name: Dionne-Wilson, Laurence
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: stress axis
serotonin
HPI axis
rainbow trout

description: Although empirical evidence suggests that interactions occur between serotonin (5- HT) and the hypothalamic-pituitary-interrenal (HPI) axis teleost fish, the mechanisms of serotonergic regulation of the HPI axis require elucidation. The hypothesis that 5-HT regulates the stress response in rainbow trout (Oncorhynchus mykiss) by acting at multiple levels in the HPI axis through tissue-specific 5-HT receptor subtypes was examined. Messenger RNA for 5-HT1A, 5-HT2 and 5-HT4 receptor subtypes was expressed in all HPI axis tissues. Administration of 5-HT in vivo in cannulated trout caused significant increases in plasma cortisol and glucose concentrations. In vitro head kidney preparations revealed a stimulatory effect of 5- HT, acting through the 5-HT4 receptor, on cortisol production. Collectively, these data suggest that 5-HT plays a role in HPI axis activation in rainbow trout, and that at the head kidney level, these effects likely are mediated by the 5-HT4 receptor.
Effects of Heat Treatment on Microstructure and Wear Resistance of Stainless Steels and Superalloys
Creators: name: Jiang, Kuan
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Heat treatment
Microstructure
Wear resistance
Superalloys
Stainless steels

description: Slurry coating technique, as one of the most popular deposition methods, is widely used to produce various material coatings. This method includes two processes: spraying, brushing or dipping of slurry, and sintering heat treatment of the coated specimen. Superalloys and stainless steels are the most common materials used as either coating materials or substrate materials because of their excellent corrosion, wear, high-temperature and mechanical properties. This research is aimed at investigating the influence of the sintering heat treatment in the slurry coating process developed at Kennametal Stellite Inc. on the microstructure, hardness and wear behavior of superalloys and stainless steels. Low-carbon Stellite 22, cobalt-based Tribaloy T-400C, martensitic AISI 420 and AISI 440C stainless steels are studied in this research. The microstructure, hardness and wear resistance of these alloys before and after the heat treatment are investigated, stressing the influence of the heat treatment on these material characteristics. The hardness and wear tested are conducted on these alloys at both room temperature and at elevated temperatures. The worn surfaces of each specimen are analyzed using a Scanning Electron Microscope (SEM) with backscatter electron imaging (BEI) and energy dispersive X ray (EDX) spectrum. It is demonstrated that the heat treatment alters the microstructures of these alloys differently; it increases the hardness but affects the wear resistance more complexly than hardness. At room temperature, the wear resistance of these alloys is governed by their microstructures. However, at high temperatures, oxidation, resulting in formation of oxide films on the specimen surface, influences the wear resistance significantly.
Modernity and the Theologico-Political Problem in the Thought of Joseph de Maistre and Fyodor Dostoyevsky: A Comprehensive Comparison
Creators: name: Racu, Alexandru
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Joseph de Maistre
Fyodor Dostoyevsky
Catholic Counter-Revolution
Slavophilism
Modernity
Theologico-Political Problem
Theodicy
Revolution
Ecclesiology
Sobornost
Papal Infallibility
Nihilism
Eschatology
Individualism
Rationalism
Protestantism

description: In this thesis I compare the views of Joseph de Maistre and Fyodor Dostoyevsky with regard to the relation between modernity and the theologico-political problem. I integrate this comparison within the general context of the reflection concerning modernity and the theologico-political problem, as well as within the context of two Christian theological traditions, Catholic and Orthodox, on the basis of which the two authors develop their religious and political thought. In particular, I analyze the views of the two authors with regard to the origins and the defining traits of modernity. Likewise, I present their opinions concerning the consequences which are inherent in the modern project. Viewing modernity first and foremost as an attempt to build a secular world that would define itself by its opposition to what both authors regard as authentic Christianity, Maistre and Dostoyevsky emphasize the fact that, having theological origins that mark the totality of its becoming, modernity should be understood on the basis of a theologico-political reflection. Associating the modern ambition to build a secular world with the fate of the biblical Tower of Babel, both authors adopt a prophetic posture, announcing the collapse of the modern project as well as the ultimate eschatological resolution of the modern crisis. Yet, the two authors are differentiated by their interpretations of the relation between modernity and the theologico-political problem, identifying differently the theological origins of the modern crisis. In this sense, while according to Maistre modernity originates in the Protestant Reformation, for Dostoyevsky, modernity’s origins must be located in the transformations of Western Christianity that have finally lead to the latter’s separation from Eastern Orthodoxy. These differences of interpretation lead to the articulation of two different responses to the modern crisis, which are rooted in two different Christian theological traditions. Consequently, if in reaction to the modern crisis Maistre affirms the Catholic principle of authority, whose highest expression is the concept of papal infallibility, Dostoyevsky opposes to this crisis the Orthodox principle of brotherhood in Christ. The critique of modernity culminates in the thought of the two authors with an approach of the complex and troubling problem of theodicy, which, Maistre and Dostoyevsky believe, stands at the origin of the modern opposition to Christianity and its traditional institutions.
La réception critique du théâtre acadien et franco-ontarien: entre identité et modernité
Creators: name: Des Becquets, Magdalena
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015

description: À partir de la fin des années 1980, il est possible de remarquer chez les auteurs franco-ontariens et acadiens une volonté de se distancer des thématiques liées à l’affirmation identitaire. Ces thèmes étaient en effet très présents dans la littérature des années 1970. Or, cette volonté des auteurs se reflète-t-elle dans la lecture critique? L’objectif de cette thèse était donc de déterminer la place des thématiques associées à l’identité collective à la fois dans les pièces et dans les textes critiques. L’étude de la réception critique des pièces de théâtre La vie et les temps de Médéric Boileau d’André Paiement (Ontario, 1973), Évangéline deusse d’Antonine Maillet (Acadie, 1975), Eddy de Jean Marc Dalpé (Ontario, 1994) et Laurie ou La vie de galerie d’Herménéglide Chiasson (Acadie, 1998) montre que le mode de lecture diffère surtout selon le type de critique (journalistique ou savante) et sa provenance par rapport à l’origine de l’auteur (locale ou extérieure à sa communauté d’origine).
État et minorités religieuses: les représentations des catholiques au Burkina Faso et au Sénégal
Creators: name: Kane, Ismaïla
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Représentations
représentations sociales
catholiques
Église catholique
catholicisme
État
politique
minorité religieuse
majorité religieuse
Burkina Faso
Sénégal
religion
Afrique
Sahel
Islam
musulman

description: Les rapports entre État et minorités religieuses constituent un grand enjeu dans le monde d'aujourd'hui qui est traversé par des crises politiques et sociales dont le soubassement est confessionnel. Beaucoup d'auteurs se sont intéressés à cette problématique mais, paradoxalement, peu se sont vraiment concentrés leur analyse sur les minorités, leur ressenti et les perceptions de leur situation. La présente thèse se propose d'étudier les représentations des minorités catholiques dans deux pays d'Afrique de l'Ouest: le Burkina Faso et le Sénégal. Ces deux pays sont également situés au Sahel qui connaît des bouleversements politiques en raison de la résurgence de l'islam politique, ce qui légitime d'autant plus une étude sur les minorités religieuses de cette région. En outre, les communautés catholiques au Burkina Faso et au Sénégal sont peu étudiées en science politique. Cette thèse révèle des représentations centrales pour chacun de deux pays. Au Burkina Faso, les catholiques se représentent l'État comme un ensemble d'institutions qu'ils dominent tandis qu'au Sénégal, les catholiques se représentent l'État comme un ensemble d'institutions qui sont dominées par les musulmans et desquelles ils sont marginalisés. La présente étude montre aussi des représentations périphériques relativement convergentes. Dans les deux pays, dans leurs interactions avec l'État, les membres de ces communautés catholiques se représentent celui-ci comme une entité qui les traite généralement comme des citoyens de plein droit. Ainsi, en mettant l'accent sur les minorités religieuses et leurs représentations de l'État, la thèse apporte une grande contribution à la littérature existante. Elle représente dès lors une première étape fructueuse pour une cartographie plus complète des relations entre État et minorités religieuses au Sahel.
Mapping (I)liberal Memory Laws in Southeastern Europe
Creators: name: Pistan, Carna
Publisher: name: Zenodo
Year: 2024

description: This draft paper focuses on memory laws, defined by the literature as legal provisions that enshrine state-approved interpretations of crucial historical events and promote certain narratives about the past. These laws are divided into punitive memory laws, which criminalize the denial of the Holocaust and other war crimes, and non-punitive memory laws, which govern state symbols, commemorations, and historical education. Originating in Western Europe in the 1980s and 1990s to counter Holocaust denial and other atrocities, early memory laws aimed to demythologize national histories and foster a cosmopolitan memory centered on state repentance. Since the 2000s and 2010s, memory laws have spread to Central and Eastern Europe, often in countries experiencing illiberal or authoritarian shifts, such as Poland, Hungary, and Russia. These newer laws tend to promote nationalist histories and protect state and national memory, sometimes protecting perpetrators rather than victims of violence. Examples include Poland's 2018 Holocaust Law and Russia's 2014 Law Against Rehabilitation of Nazism.

While significant scholarly attention has focused on Central and Eastern Europe, there has been less examination of memory laws in Southeastern Europe, particularly the post-Yugoslav sphere, despite the significant role of memory manipulation in the Yugoslav Wars of the 1990s and the region's more recent wave of nationalism and historical revisionism. This draft paper aims to explore how laws shape collective memory in Southeastern Europe, analyzing nationalist interpretations in legislation from Croatia, Serbia, and Bosnia and Herzegovina and assessing their impact on reconciliation and democratic backsliding in the region.
Conservation of Orbital Angular Momentum in High-Harmonic Generation
Creators: name: Gariepy, Genevieve
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: High-Harmonic Generation
Orbital Angular Momentum

description: Orbital angular momentum (OAM) is a property of light that is widely used for applications in bioimaging, optical communication and optical manipulation, but is mainly limited to the infrared and visible spectra. Developing a table-top source of Extreme Ultraviolet (XUV) light containing an arbitrary amount of OAM is yet to be achieved. We accomplish this by exploiting high-harmonic generation (HHG), a process whereby an infrared pump beam produces high order harmonics. We experimentally demonstrate the conservation of OAM in HHG by measuring harmonics of order n containing n times the OAM of the pump (n = 11, 13, 15 in our experiment). These results agree with our theoretical model. We also show theoretically how to manipulate the HHG process to impart an arbitrary amount of OAM to the di fferent harmonics. We hence show the way to a table-top and flexible source of XUV light containing orbital angular momentum.
Geotechnical and Geo-Environmental Behaviour of Landfill Biocover under Freeze-Thaw Condition
Creators: name: Moghbel, Farzad
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Biocover
Freeze-Thaw Condition

description: Landfill biocovers have been proven as a green and efficient technology to mitigate landfill methane emissions. Thermal, hydraulic, mechanical and bio-chemical (THMBC) factors regulate biocover behaviour. The aim of the current study is to evaluate the geotechnical and geo-environmental response or performance of compost based biocovers under freeze-thaw conditions. A comprehensive experimental program, including tests on samples as well as biocover column experiments, has been conducted. The results demonstrate that the thermal properties (thermal conductivity and thermal diffusivity) of the biocovers change due to the FTCs. Moreover, the outcomes of the column experiments demonstrate that biocover performance remains at an acceptable level even after experiencing two FTCs despite that most of the THMBC parameters in the biocover have changed due to the impacts of the FTCs and methane injection. The findings presented in this thesis will contribute to a better understanding and design of compost biocovers in cold regions.
Synthesis, Analysis and Testing of Photoactive Heterojunction Semiconductors
Creators: name: Meng, Xiangchao
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Photocatalysis
p-n heterojunction
Environmental protection
Hydrothermal

description: Photocatalysis is a growing area of study for a clean and renewable energy source, particularly for the purification of water and air. Researchers have studied the combination of various semiconductors to create photocatalysts with improved activities, but little has been reported in selecting semiconductors based on their extrinsic type – namely n-type or p-type. In this study, a BiOBr (p-type)-Bi2WO6 (n-type) heterojunction semiconductor was synthesized by the facile hydrothermal method. The new materials were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM) and diffuse-reflection spectroscopy (DRS). Degradation of Rhodamine B was employed to measure the photocatalytic activity of the as-prepared photocatalysts. On the basis of these techniques, the influence of the synthesis conditions (namely, hydrothermal reaction time and temperature) and the degradation conditions (namely, initial concentration, pH of the initial dye water and amount of catalysts dosage) have been explored and discussed. Furthermore, effect of concentrations of the dopants (the atomic ratio of BiOBr and Bi2WO6 were 1:4， 1:1， 4:1) was examined by measuring the degradation rate of Rhodamine B. Finally, the mechanism of the degradation process and the enhancement effect of heterojunction were also interpreted by analyzing the quenching effect of the scavengers and the band structure. Conclusively, this study shed light on the benefits of using heterojunction photocatalysts, and also on the importance of considering the semiconductor type when forming composite photocatalysts.
Performance analysis of three phase induction generators during fault
Creators: name: Seyoum, Dawit
name: Wolfs, Peter
name: Hosseinzadeh, Nasser
Publisher: name: Swinburne
Year: 2024

description: Three phase induction generators can be utilized to generate electrical power in nonconventional energy conversion systems. With low penetration of induction generators the practice has been to disconnect induction generators from the grid during a network fault. However with an increase in the use of induction generators the induction generators are required to operate during faults and to assist in stabilizing the grid voltage and frequency. During a network fault an induction generator will experience decreased stator voltage and flux with a severity depending on the location of the fault. This paper deals with the performance analysis of different induction generator schemes for grid-connected as well as isolated system applications during electrical faults and after clearance of the fault.
Improved Prediction-based Dynamic Load Balancing Systems for HLA-Based Distributed Simulations
Creators: name: Alkharboush, Raed
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Load balancing
HLA

description: Due to the dependency of High-Level Architecture (HLA)-Based simulations on the resources of distributed environments, simulations can face load imbalances and can suffer from low performance in terms of execution time. HLA is a framework that simplifies the implementation of distributed simulations; it also has been built with dedicated resources in mind. As technology is nowadays shifting towards shared environments, the following two weaknesses have become apparent in HLA: managing federates and reacting towards load imbalances on shared resources. Moreover, a number of dynamic load management systems have been designed in order to provide a solution to enable a balanced simulation environment on shared resources. These solutions use specific techniques depending on simulation characteristics or load aspects to perform the balancing task. Load prediction is one of such techniques that improves load redistribution heuristics by preventing load imbalances. In this thesis, a number of enhancements for a prediction technique are presented, and their efficiency are compared. The proposed enhancements solve the observed problems with Holt’s implementations on dynamic load balancing systems for HLA-Based distributed simulations and provide better forecasting. As a result, these enhancements provide better predictions for the load oscillations of the shared resources. Furthermore, a number of federate migration decision-making approaches are introduced to add more intelligence into the process of migrating federates. The approaches aim to solve a dependency problem in the prediction-based load balancing system on the prediction model, thus making similar systems adapt to any future system improvements.
Impact of Solar Resource and Atmospheric Constituents on Energy Yield Models for Concentrated Photovoltaic Systems
Creators: name: Mohammed, Jafaru
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Thesis
Dissertation
Solar
Concentrated Photovoltaics
Photovoltaics
Solar Resource
Energy Yield Analysis
Cloud Analysis
Energy Model
Spectrum Analysis
Data Acquisition
Data Storage System
Photovoltaic Systems
Solar Energy
Spectral Analysis

description: Global economic trends suggest that there is a need to generate sustainable renewable energy to meet growing global energy demands. Solar energy harnessed by concentrated photovoltaic (CPV) systems has a potential for strong contributions to future energy supplies. However, as a relatively new technology, there is still a need for considerable research into the relationship between the technology and the solar resource. Research into CPV systems was carried out at the University of Ottawa’s Solar Cells and Nanostructured Device Laboratory (SUNLAB), focusing on the acquisition and assessment of meteorological and local solar resource datasets as inputs to more complex system (cell) models for energy yield assessment. An algorithm aimed at estimating the spectral profile of direct normal irradiance (DNI) was created. The algorithm was designed to use easily sourced low resolution meteorological datasets, temporal band pass filter measurement and an atmospheric radiative transfer model to determine a location specific solar spectrum. Its core design involved the use of an optical depth parameterization algorithm based on a published objective regression algorithm. Initial results showed a spectral agreement that corresponds to 0.56% photo-current difference in a modeled CPV cell when compared to measured spectrum. The common procedures and datasets used for long term CPV energy yield assessment was investigated. The aim was to quantitatively de-convolute various factors, especially meteorological factors responsible for error bias in CPV energy yield evaluation. Over the time period from June 2011 to August 2012, the analysis found that neglecting spectral variations resulted in a ~2% overestimation of energy yields. It was shown that clouds have the dominant impact on CPV energy yields, at the 60% level.
“I Bid My Hideous Progeny Go Forth and Prosper”: Frankenstein’s Homosocial Doubles and Twentieth Century American Literature
Creators: name: Frampton, Sara
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Twentieth Century American Literature
American Literature
Gothic Literature
Eve Kosofsky Sedgwick
Homosocial
Frankenstein
Mary Shelley
Willa Cather
The Professor's House
Ralph Ellison
Invisible Man
Toni Morrison
Beloved
Fight Club
Chuck Palahniuk

description: This dissertation explores the reoccurrence of Mary Shelley’s Frankenstein within twentieth-century American novels. While the inaccurate 1931 film version by James Whale remains the best known adaptation of Frankenstein, I argue that Willa Cather, Ralph Ellison, Toni Morrison, and Chuck Palahniuk return to Shelley’s 1818 novel to critique racist and misogynistic responses to anxieties about gender and racial power in the age of industrial consumer culture. In doing so, I extend existing scholarship on the American Gothic to demonstrate that The Professor’s House, Invisible Man, Beloved, and Fight Club represent a specifically Shelleyan Gothic tradition in twentieth-century American literature. My project draws upon influential feminist and postcolonial readings of Frankenstein and on the theoretical work of Eve Kosofsky Sedgwick and later critics who have developed her theory to show how the twentieth-century novels echo themes and motifs from Shelley’s novel to critique the destructive effects of male homosociality. Each novel contains a protagonist that resembles Victor Frankenstein and responds to historically specific anxieties about gender, race, and industrial technoscience by creating a doppelgänger who enables participation in a homosocial bond that is initially empowering but proves destructive to women, racial minorities, and eventually the creature and creator figures themselves. My reading reveals unexpected similarities between Cather’s The Professor’s House and Palahniuk’s Fight Club. Cather’s novel appears to glorify Tom Outland as the ideal masculine hero but ultimately reveals him to be a monstrous doppelgänger who acts out the Professor’s oppressive impulses; similarly, Fight Club seems to romanticize the male violence instigated by the doppelgänger figure Tyler Durden but actually echoes Shelley’s critique of male homosociality as monstrous. My reading also reveals previously overlooked similarities between Invisible Man and Beloved, both of which feature a black protagonist who surprisingly resembles Victor Frankenstein by creating a doppelgänger to challenge his or her disempowerment by the structures of white male homosociality but end up emulating the destructive homosocial structures they critique. My dissertation shows how all of these writers share Shelley’s critique yet move beyond it by offering alternatives to the destructive cycle of violence, embodied in each case by a female figure who resists or reclaims the position of the abject other in the homosocial triangle.
Poking Vesicles: What Molecular Dynamics can Reveal about Cell Mechanics
Creators: name: Barlow, Benjamin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Physics
Biophysics
Simulation
Molecular dynamics
Vesicle
Bilayer
AFM
Atomic force microscope
Cell dynamics
Cell mechanics
Relaxation time
Helfrich
Area expansion
Parallel plate compression

description: Because cells are machines, their structure determines their function (health). But their structure also determines cells’ mechanical properties. So if we can understand how cells’ mechanical properties are influenced by specific structures, then we can observe what’s happening inside of cells via mechanical measurements. The Atomic Force Microscope (AFM) has become a standard tool for investigating the mechanical properties of cells. In many experiments, an AFM is used to ‘poke’ adherent cells with nanonewton forces, and the resulting deformation observed via, e.g. Laser Scanning Confocal Microscopy. Results of such experiments are often interpreted in terms of continuum mechanical models which characterize the cell as a linear viscoelastic solid. This “top-down” approach of poking an intact cell —complete with cytoskeleton, organelles etc.— can be problematic when trying to measure the mechanical properties and response of a single cell component. Moreover, how are we to know the sensitivity of the cell’s mechanical properties to partial modification of a single component (e.g. reducing the degree of cross- linking in the actin cortex)? In contrast, the approach taken here —studying the deformation and relaxation of lipid bilayer vesicles— might be called a “bottom-up” approach to cell mechanics. Using Coarse- Grained Molecular Dynamics simulations, we study the deformation and relaxation of bilayer vesicles, when poked with constant force. The relaxation time, equilibrium area expansion, and surface tension of the vesicle membrane are studied over a range of applied forces. Interestingly, the relaxation time exhibits a strong force-dependence. Force-compression curves for our simulated vesicle show a strong similarity to recent experiments where giant unilamellar vesicles were compressed in a manner nearly identical to that of our simulations.
Exploring the Transitions Associated with Aging in Two Northern First Nations Communities
Creators: name: St-Jean, Mélanie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: First Nations
Knowledge
Elders
Changes
Aging
Transitions
Aboriginal
Northern Ontario
Care
Health

description: First Nations people have experienced dramatic life changes in a very short period of time. The process of change was not a conscious decision made by First Nations peoples but rather the result of successive stages of European contact and formal colonization by what is now the government of Canada. With such constant changes and the history of assimilation that overshadows the Aboriginal population, it is becoming difficult for Elders to sustain their roles within the family unit and in their community as a whole. This study provides a description of the oral accounts of Elders living in two remote First Nations communities in Northwestern Ontario. I conducted three summers of ethnographic research that involved participant observation of local cultural practices and 12 semi-structured interviews from 2009 to 2011. Guided discussions with Elders about their lives and their relationship to the land provide important insight into local cultural and personal values. Three primary themes emerged from the conversations with the Elders about life during the childhood: the intense physicality of life in the past, the connection between health and local foods and the changing role of Elders. Findings suggest that Elders are eager to transmit their knowledge to provide a healthier lifestyle for future generations. In addition, I provide a description of the current living conditions of Elders in both communities. First Nations Elders, who were once crucial to the survival of a band, are now facing the highest degree of vulnerability and are desperately searching for a new identity that gives them purpose. Meeting with Elders in their homes and at several community events provided insight into their lives and the challenges they are currently facing. These challenges and experiences are hardly one-dimensional, as they each have varying degrees of family support, financial stability and housing conditions. However, the consistent thread in all the cases was the ongoing struggle Elders have faced trying to reconcile traditional perspectives with the growing dominance of contemporary western lifestyle practices.
Compare the Effect of Eicosapentaenoic Acid, as Supplement Drug and Oxidized Low-Density Lipoprotein as Atherogenic Factor on the Expression of CD36 and Peroxisome Proliferator-Activated Receptor Gamma
Creators: name: Rezaei, Hossein Babaahmadi
name: Doosti, Mahmood
name: Aminian, Mahdi
name: Shabani, Parisa
Publisher: name: the Pasteur Institute of Iran
Year: 1996
Subjects: subject: Basic Sciences

description: Iranian Biomedical Journal (IBJ); ISSN 1028-852X