cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Epidemiology, Risk Profiling and Diagnostic Challenges of Nonalcoholic Fatty Liver Disease
Creators: name: Iqbal, Umair
name: Perumpail, Brandon J.
name: Akhtar, Daud
name: Kim, Donghee
name: Ahmed, Aijaz
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2019

description: Nonalcoholic fatty liver disease (NAFLD) encompasses a wide spectrum of liver damage from the more prevalent (75%–80%) and nonprogressive nonalcoholic fatty liver (NAFL) category to its less common and more ominous subset, nonalcoholic steatohepatitis (NASH). NAFLD is now the most common cause of chronic liver disease in the developed world and is a leading indication for liver transplantation in United States (US). The global prevalence of NAFLD is estimated to be 25%, with the lowest prevalence in Africa (13.5%) and highest in the Middle East (31.8%) and South America (30.4%). The increasing incidence of NAFLD has been associated with the global obesity epidemic and manifestation of metabolic complications, including hypertension, diabetes, and dyslipidemia. The rapidly rising healthcare and economic burdens of NAFLD warrant institution of preventative and treatment measures in the high-risk sub-populations in an effort to reduce the morbidity and mortality associated with NAFLD. Genetic, demographic, clinical, and environmental factors may play a role in the pathogenesis of NAFLD. While NAFLD has been linked with various genetic variants, including PNPLA-3, TM6SF2, and FDFT1, environmental factors may predispose individuals to NAFLD as well. NAFLD is more common in older age groups and in men. With regards to ethnicity, in the US, Hispanics have the highest prevalence of NAFLD, followed by Caucasians and then African-Americans. NAFLD is frequently associated with the components of metabolic syndrome, such as type 2 diabetes mellitus (T2DM), obesity, hypertension, and dyslipidemia. Several studies have shown that the adoption of a healthy lifestyle, weight loss, and pro-active management of individual components of metabolic syndrome can help to prevent, retard or reverse NAFLD-related liver damage. Independently, NAFLD increases the risk of premature cardiovascular disease and associated mortality. For this reason, a case can be made for screening of NAFLD to facilitate early diagnosis and to prevent the hepatic and extra-hepatic complications in high risk sub-populations with morbid obesity, diabetes, and other metabolic risk factors.
title: Wie der Klimawandel krank macht
title: Wie der Klimawandel krank macht
titleType: AlternativeTitle
Creators: name: Schwandner, Marcus
Publisher: name: My University
Year: 2020

description: Ältere und Säuglinge sterben durch die Hitze. Allergiker leiden unter dem verlängerten Pollenflug. Neue Infektionskrankheiten werden zu Plagen. Menschen hungern wegen der Dürren. Wie muss sich die Gesundheitsversorgung darauf einstellen? Quelle: www.swr.de
Stream-bank protection in narrow channel bends using 'barbs': A laboratory study
Creators: name: Matsuura, Troy
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Engineering, Civil.

description: This thesis reports on phases 1 and 2 (Matsuura and Townsend, 2004a, 2004b, 2004c) of an ongoing laboratory study of a novel form of streambank protection structure. 'Barbs' are groin-like structures designed to protect the (usually unstable) outside-bank regions of channel bends by actively redirecting flow away from the outside-bank. These low-profile, rock-fill structures have trapezoidal-shaped cross-sections and point upstream into the direction of flow. Their overall length typically extends one-quarter way across the channel, and are comprised of 'key' and 'weir' sections. The former, which is set back into the channel bank material, slopes downwards at 1V:1.5H to meet the low-profile weir section that extends into the stream. The crest of the weir section, the 'key' end of which should not exceed the channel-forming flow level (typically taken as the 1.5-year flow event), should have a mild positive slope (<1 V:5H) towards the 'stream' end for proper operation, (USDA 1999). By disrupting near-bank velocity gradients, barbs promote sediment deposition along the eroding outside-bank region. Their presence also modifies the bend's 'helicoidal'-type flow pattern such that secondary currents, that would otherwise attack the outside-bank, are redirected towards the center of the channel. (Abstract shortened by UMI.)
Depression, self-esteem and emotion regulation: relationship to attachment style and self-organisation
Creators: name: Goldwasser, Suzette Sarah
Publisher: name: Swinburne
Year: 2024

description: This thesis examined how a person's self-view and the way they generally feel in romantic relationships affects their well-being and the way they manage their emotions. An interesting finding was that individuals with a dismissive relationship style, characterised by being self-reliant and downplaying relationships, were more prone to depression if they also thought about themselves in terms of segregated positive and negative self-aspects. On the other hand, having a balance of positive and negative self-beliefs within their self-aspects resulted in better well-being for dismissive people. This thesis's findings will assist in developing strategies to help people constructively manage their emotions and improve their well-being.
A common workflow registry of compute endpoints and applications
Creators: name: Katz, Daniel S
name: Badia, Rosa
name: Chard, Kyle
name: Ejarque, Jorge
Publisher: name: Zenodo
Year: 2020

description: This is a presentation given at the 11th JLESC workshop (https://jlesc.github.io/events/11th-jlesc-workshop/)

 There is now a large and ever growing number of workflow systems, and we have lost hope in encouraging users not to continue developing more. Instead, we want to focus on building shared elements that can help us with our own systems, as well as the users of those systems and the developers of applications that will increasingly be used as workflow elements in simulation, analysis, search, optimization, and parameter study research campaigns. As discussed briefly at JLESC 9 (in ST A1.1. Python-based Workflows & Software Sustainability), two of the common types of elements that workflow systems interact with are the end computing systems and the preexisting applications that the workflows wrap and call. Today, users of a workflow system have to find information about both the end points and the applications, they have to map that information to workflow-specific configuration formats, individually customize their workflow to use these configurations, and keep up with changes over time. Instead, we propose a registry of compute end points and applications, where an entry could be automatically brought in to a workflow system.
Production de localité en Côte-d'Ivoire: Brèche dans un imaginaire de postcolonie
Creators: name: Kasse, Aminata
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Political Science, General.

description: Cette thèse établit un récit compréhensif de certaines des conditions contribuant à la mutation de la relation État/Société en Côte-d'Ivoire et, plus précisement, celle de l'État et de l'imaginaire ivoirien contemporain. L'argument central de la thèse est le suivant : la " crise " ivoirienne révèle le fait que le pays est entre dans un processus concomitant de formation de l'État et de l'imaginaire ; elle est la manifestation d'un désenchantement quant au projet " houphouetien " de modernisation et de développement du pays, double d'un désir de la population d'être désormais au coeur de l'édification de la nation. La Côte-d'Ivoire est en quête d'un autre projet de société, comme en témoigne l'émergence de nouveaux acteurs dans le champ politique, avec leurs revendications et pratiques nouvelles. Ces acteurs émergents aux pouvoirs renforcés revisitent la relation État/Société dans un jeu qui déplace la dynamique de la production du politique de l'État, ou elle a été longtemps confinée, vers la société, ou elle est éclatée entre différents acteurs, groupes et catégories sociales. Quant aux pratiques en question, si certaines d'entre elles sont nouvelles, d'autres n'évacuent pas complètement tous les schémas du passé. L'auteure analyse, à la suite de Lonsdale, Berman et Bayart, l'importance du rôle des acteurs autres que l'État dans ce processus de transformation, en distinguant la construction de l'État, qui est l'effort consciemment mené par celui-ci pour se constituer en tant que pouvoir, de la formation qui est le résultat de l'ensemble des stratégies et actions, plus ou moins conflictuelles, inconscientes ou concertées, des differents acteurs et/ou " masse d'anonymes " ; ces stratégies et actions leur permettent de participer à la formation de l'État. Dans cette thèse, l'accent est mis sur le rôle de ces acteurs émergents pris en dehors de la sphère du pouvoir formel. Ce faisant, l'auteure souligne la place de l'imaginaire dans la formation des sociétés politiques, en étudiant des pratiques sociales généralement négligées par les politologues telles que la danse, le chant, et en analysant des pièces de théâtre et une fiction.
Round robin test for odour testing of migration waters
Creators: name: Rapp, Thomas
name: Günther, Herbert
Publisher: name: My University
Year: 2015
Subjects: Trinkwasser
Wasser
Ringversuch

description: For a round robin test for EN 1420-1 (Odour assessment for organic materials in contact with drinking water) with 14 contributing laboratories from 10 European countries segments of a plastic pipe were sent to the laboratories which performed a migration test and an odour analysis of the migration waters (water that had contact with the organic material) according to the procedure described in the standard from 1999. In addition reference substances (Methyl tert-butyl ether, 1-butanol and hexanal) were investigated for their suitability to qualify the panels and the individual panellists. Methyl tert-butyl ether (MtBE) and 1-butanol proved to be suitable for this purpose, whereas hexanal showed a wide distribution of the individual odour threshold concentrations. Both possible testing options (unforced and forced choice) were performed and gave similar results. However, with respect to the qualification of the panellists and the data analysis the unforced choice procedure showed advantages. As human olfactory perception is used for the analysis, the reproducibility and the comparability between laboratories is of particular concern. For the pipe material the TON results of the different laboratories were in a range of ş1.5 dilutions based on a dilution factor of 2. This might be improved by taking the individual sensitivities of the panellists into account more strongly. Appropriate measures for the improvement of the test method appear to be the use of the proposed reference substances for the training of the panellists as well as the auditing and the selection of the panellists. The results of this round robin test are used in the revision process of the standard.Quelle: http://www.sciencedirect.com
In search of a Lebesgue density theorem for Rinfinity
Creators: name: Cazaubon, Verne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Mathematics.

description: We look at a measure, linfinity , on the infinite-dimensional space, Rinfinity , for which we attempt to put forth an analogue of the Lebesgue density theorem. Although this measure allows us to find partial results, for example for continuous functions, we prove that it is impossible to give an analogous theorem in full generality. In particular, we proved that the Lebesgue density of probability density functions on Rinfinity is zero almost everywhere.
Contraction pressure losses in injection moulding
Creators: name: Brincat, Paul
Publisher: name: Swinburne
Year: 2024

description: Within injection moulding systems the nozzle and gate regions force the polymer melt from large cross-sectional areas into smaller ones. As this occurs the polymer melt must extend as well as shear as it is forced into a smaller section. The added work done in extending the polymer in these regions results in a contraction pressure loss. To predict this pressure loss the extensional properties of the material must be gathered. True extensional properties of molten polymers are exceptionally difficult to obtain at high extension rates. Through the use of approximate contraction analysis techniques it is possible to obtain approximate extensional viscosity data from the flow of polymer through a simple contraction. Repeating this experiment at various temperatures, a temperature dependent extensional viscosity model can be determined. Extensional and shear viscosities are determined for acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), polypropylene (PP) with and without talc filler, and polybutylene-terephthalate (PBT) of various glass fibre content of which interesting results are observed in the effect of additional fibre content on the extensional viscosity. The factors that affect the measurement of the extensional viscosity using this technique are investigated in this thesis. The approximate contraction analysis methods were then applied to a numerical shear analysis and provided an improved simulation of the injection moulding process. Finally the approximate methods were applied to the more typical geometries faced in injection moulding to provide a method for predicting the entrance pressure in these geometries.
The choice of extra curricular activities of secondary school students as a function of psychological differentiation.
Creators: name: Chambers, O. Judith.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1978
Subjects: subject: Education, Tests and Measurements.

description: Rosenberg has demonstrated that the high school student is influenced by several factors in choosing an extra-curricular activity. Witkin, on the other hand, has shown that an individual's characteristic mode of perceiving the environment, that is his degree of psychological differentiation, can be reliably identified. A specific link between Rosenberg's notion of perceived choice of extra-curricular involvement and Witkin's psychological differentiation has yet to be established. Rosenberg identified two distinct types of perceived involvements, Inclusive and Exclusive. Witkin and others have developed measuring instruments to determine a subject's degree of psychological differentiation. The purpose of the present study is to test the hitherto undetermined connection between the student's degree of psychological differentiation and his perceived choice of extra-curricular activities as measured on the continuum of Inclusivity-Exclusivity. In addition, a second purpose of the study is to develop a testing instrument to measure Inclusivity-Exclusivity. In the current research, scores on the degree of psychological differentiation were measured by Jackson's version of Witkin's Embedded-Figures Test, the Hidden Figures Test-V (HFT-V). The constructed Inclusivity-Exclusivity Questionnaire (I-E) was used to measure the perceived choice of activities. The research sample included one hundred and fifty-one students from grades nine to thirteen. The hypothesis that field-dependent subjects, as determined by the HFT-V, exhibit significantly higher scores on the I-E than field-independent subjects was supported. The study concludes with the following suggestions for further research: (1) The Questionnaire could be further validated for the use of future research of student's perceived choice of activities by investigating its consistency as a measuring instrument across cultures, socio-economic groupings and with different races. (2) It would be of interest to do an exploratory investigation to determine some of the other factors involved in the choice of an extra-curricular activity. (3) A number of correlational studies of extra-curricular involvement with academic success, leadership, self-esteem, school completion, and career choice is suggested.
Diabetogenous symptoms in pellet fed hatchery-reared Atlantic salmon smolts (Salmo salar).
Creators: name: Drouin, Maurice Albert.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1978
Subjects: subject: Agriculture, Fisheries and Aquaculture.

description: The profitable rearing of the Atlantic salmon (Salmo salar L.) requires artificial diets high in carbohydrates or fats or both in order to avoid the high cost of protein feed; this practice is monitored by growth criteria such as animal length and body weight. The present study investigates the physiological state of hatchery-reared salmon smolts raised under cage culture conditions and fed a commercial pellet food of elevated carbohydrate content. Our results show metabolic disturbances that strongly suggest a diabetogenous situation: hyperglycemia, hypertriacylglycerolemia, some glucosuria and occasional ketonuria. Histopathological examination confirms the initial suggestion: significant reduction of the beta to alpha cell ratio in the islets of Langerhans, frequent alteration of the disposition of insular cells, hydropic changes in the B cells such as degranulation, vacuolization and nucleic pyknosis, evidence of hypertrophy and hyperplasia of B cells and pronounced neoformation of islet tissue. In addition, hyalinization of both the exocrine and the endocrine pancreas was observed as well as fibrosis, lipomatosis and microangiopathy of the exocrine acinar tissue and an increase in intrapancreatic nerve cell number. In conclusion, the smolts fed the pellet diet displayed a syndrome reminiscent of mammalian diabetes; a comparison is drawn between diabetes mellitus and the observed form of salmon diabetes. The study emphasizes the need to involve physiological criteria in the assessment of the suitability of artificial diets especially in the rearing of healthy salmon intended for restocking of natural environments.
Umweltrelevanz und Stand der Technik bei Einäscherungsanlagen
Creators: name: Schetter, Gebhard
name: Bittig, Margot
Publisher: name: Umweltbundesamt
Year: 2020
Subjects: subject: Stand der Technik
subject: Messdaten
subject: Umweltauswirkung
subject: Quecksilber
subject: Schadstoffemission
subject: Feuerbestattung
subject: Krematorium
subject: Krematoriumsofen
subject: Abfall | Ressourcen

description: Um einen Überblick über den Stand der Technik bundesdeutscher Krematorien zu bekommen, wurde eine Situationsanalyse durchgeführt. Sie basiert in einem ersten Schritt auf einer Datenerhebung der Krematorien in den einzelnen Bundesländern. Ergänzend hierzu wurde eine Klassifizierung der eingesetzten technologischen Baugruppen vorgenommen und hinsichtlich der 27. Bundes-Immissionsschutz-Verordnung (27. BImSchV) sowie des Standes der Technik gemäß der VDI-Richtlinie 3891 bewertet. Aufbauend auf der durchgeführten Datenerhebung wurden sechs Kremationslinien mit unterschiedlichen Ofen- und Abgasreinigungssystemen ausgewählt, um sie umfassenden Abgasmessungen zu unterziehen. Die Untersuchungen erstreckten sich auf die Abgasparameter der 27. BImSchV und Quecksilber. Aus den gewonnenen Erkenntnissen wurden Handlungsempfehlungen für zukünftige Entscheidungen des Gesetzgebers abgeleitet, die sowohl auf bereits in der 27. BImSchV enthaltene Anforderungen zur Emissionsminderung als auch auf die Minderung der Quecksilberemissionen abstellen. Quelle: Forschungsbericht
description: In order to get an overview of the state of the art of German crematoria, a situation analysis was carried out. In a first step, it is based on a data collection of the crematoria sorted by the German federal states. In addition, a classification of the installed technologies was carried out and evaluated with regard to the 27th Federal Immission Control Ordinance (27th BImSchV) and the state of the art in accordance with VDI Guideline 3891. Based on the results of the data collection of the crematoria in Germany in total six cremation lines with different oven and flue gas cleaning devices were selected for further emission measurements. These investigations dealt with the emission limitations according to the 27th BImSchV as well as with mercury. From these results policy recommendations were derived for further decisions which are focused on the existing emission values of the 27th BImSchV and on the reduction of mercury emissions. Quelle: Forschungsbericht
description: Das Forschungsprojekt erfasst die in Deutschland betriebenen Humankrematorien und die dort eingesetzten technologischen Baugruppen und bewertet diese hinsichtlich des Standes der Technik gemäß der 27. Bundes-Immissionsschutz-Verordnung (27. ⁠BImSchV⁠) und VDI-Richtlinie 3891. Darauf aufbauend wurden an sechs Kremationslinien mit unterschiedlichen Ofen- und Abgasreinigungssystemen umfassende Emissionsmessungen durchgeführt. Die aus den gewonnenen Erkenntnissen abgeleiteten Handlungsempfehlungen stellen insbesondere auf eine Fortschreibung der Anforderungen der 27. BImSchV und eine weitere Minderung von Quecksilberemissionen ab.
Understanding Franco-Ontarian public spaces: A study of La Nouvelle Scene
Creators: name: Pelletier, Lianne
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Speech Communication.
subject: Theater.
subject: French Canadian Culture.

description: Franco-Ontarians have founded an array of institutions to ensure their long-term cultural survival. By patronizing them, Franco-Ontarians are communicating their desire to belong to the community, to distinguish themselves from the majority, and to be recognized as part of a distinct cultural entity. Based on Habermas' notion of the public space and on Breton's concept of institutional completeness, this study aims to explore how Franco-Ontarians regard the value of institutions as public spaces which affect the nature of Franco-Ontarian identity. Surveys and interviews were conducted with patrons of the francophone theatre centre La Nouvelle Scene, to gather information on motivations and expectations in associating with such institutions. This study's main finding was that Franco-Ontarians don't accredit their sense of identity to the substance of La Nouvelle Scene's activities, but rather to its very presence within the community's boundaries and to the consequences that this presence entails.
Bilanzielle Auswirkungen durch die Umsetzung von Urteilen des Bundesarbeitsgerichts zu Fragen der betrieblichen Altersvorsorge am Beispiel von Endgehaltsplänen
Creators: name: Müller, Thomas
Publisher: name: Universität Ulm
Year: 2018
Subjects: subject: Steuerbilanzrecht
subject: Betriebliche Altersvorsorge
subject: DDC 330 / Economics
subject: DDC 340 / Law
subject: Old age pensions; Law and legislation; Germany
subject: Social security; Law and legislation; Germany
subject: Employee fringe benefits; Law and legislation; Germany
subject: Financial statements; Law and legislation; Germany
subject: Corporations; Accounting; Law and legislation; Germany
subject: Income tax; Accounting; Law and legislation; Germany
subject: Bilanzrecht
subject: Betriebliche Altersversorgung

description: In der vorliegenden Arbeit wurden drei zentrale Urteile des Bundesarbeitsgerichts der letzten 15 Jahre im Hinblick auf die Auswirkungen auf die Höhe der Pensionsrückstellungen untersucht. Mit den Urteilen waren sowohl bilanzielle Mehrbelastungen als auch bilanzielle Entlastungen verbunden. Die Größenordnung der Auswirkungen fällt je nach Bestand und Zusage sehr unterschiedlich aus. Für sich genommen stellt jedoch kein Urteil und die damit verbundenen Mehrkosten Unternehmen vor bilanziell unlösbare Probleme. Allerdings laufen die stets immanent vorhanden arbeitsrechtlichen Risiken dem Wunsch der Unternehmen nach Planungssicherheit entgegen. Eine viel größere Herausforderung stellt das nun schon seit geraumer Zeit sehr niedrige Zinsniveau für die Ermittlung der Pensionsrückstellungen in der Handelsbilanz dar. Die fehlende steuerliche Entlastung durch eine Absenkung des steuerrechtlichen Diskontierungszinssatzes tut ihr Übriges. Aus aktuarieller Sicht war zunächst überraschend, dass in einigen Fällen trotz Erhöhung der Ansprüche, die steuerliche Rückstellung zurückging ("entgegengesetzter Wartezeit-effekt"). Dies liefert ein weiteres Argument, warum das Teilwertverfahren in einigen Fällen keine wirtschaftlich vernünftigen Ergebnisse liefert. Es hat sich außerdem gezeigt, dass die Bewertungsergebnisse je Wahl des Finanzierungsendalters sehr unterschiedlich ausfallen können. Da das Finanzierungsendalter eine zentrale Annahme darstellt, spricht einiges dafür den derzeitigen Modellansatz um Verrentungwahrscheinlichkeiten zu erweitern und damit die mit den unterschiedlichen Endaltern einhergehenden Effekte zu erfassen.
Processus d'alimentation de la nappe phréatique et géochimie des nitrates des eaux souterraines de la presqu'île de Kaloum, Conakry, Guinée.
Creators: name: Sylla, Morciré.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Geology.

description: Les eaux souterraines en general, et celles de la nappe phreatique en particulier sont couramment sollicitees a Conakry pour combler le deficit d'approvisionnement en eau domestique et industrielle du riseau d'adduction. La necessite de recherche de nouvelles ressources en eau pour juguler ce deficit evolutif en eau de la ville, a engendre le projet de recherches hydrogeologiques de Conakry dont les premieres analyses en 1992, ont revele des concentrations de nitrate atteignant 138 mg-NO$\sb3$/1. Les zones d'accumulation des eaux localisees preferablement sur le versant nord et a l'extreme ouest voient leurs eaux se renouveler continuellement. Les resultats d'analyses geochimiques d'echantillons collectes entre 1992 et 1994 indiquent des eaux hydrocarbonatees, calciques, chlorurees magneseiennes, avec des teneurs anormales de manganese ($>$0,5 mg/l) et de fer($>$1 mg/l) imputables a l'alteration de la dunite. L'omnipresence des nitrates dans la nappe phreatique est confirmee par des concentrations allant de $\rm1mg{-}NO\sb3$/1 a 209 mg-NO$\sb3$/l, dont environ 38% des echantillons avec plus de 45 mg-NO$\sb3$/l. Les cartes de distribution des nitrates montrent que la contamination est plus accrue en saison des pluies tant en concentration qu'en etendue, alors que les conditions en saison seche sont plus favorables a la denitrification. Le zonage des nitrates laisse voit une correlation avec la densite de population qui privilegie l'origine anthropogene des nitrates dans la nappe phreallque de ConaKry. La zone contaminee s'etendrait de Koulewondi a l'ouest vers l'Aeroport de Gbessia a l'est, avec une extension moins grande sur le flanc nord. Les sources de contamination sont ponctuelles plus ou moins rapprochees, representees par les fosses septiques, les depotoirs d'ordures et les eaux usees.
Design, development and mechanistic studies of hydrazide-catalyzed enantioselective cycloaddition reactions
Creators: name: Lemay, Mathieu
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Chemistry, Organic.

description: Novel cyclic hydrazides were designed and found to function as asymmetric organocatalysts in aqueous Diels-Alder reactions.1 The LUMO-lowering activation of alpha,beta-unsaturated aldehydes by the reversible formation of iminium ions from hydrazides was used as an efficient platform to achieve highly enantioselective Diels-Alder cycloadditions. The implementation of the hydrazide functionality promoted faster iminium formation relative to secondary amine catalysts via the alpha-heteroatom effect. The mechanism of the enantioselective hydrazide catalyzed Diels-Alder cycloaddition was investigated in detail.2 Both the formation of the reactive iminium species and the hydrolysis of the product iminium intermediates were found to be extremely rapid, leaving the cycloaddition as the kinetically significant step. Mechanistic studies using NMR showed that a retro Diels-Alder reaction occurred during the catalytic cycle suggesting a thermodynamic component to the reaction. Conformational control was utilized to design an improved hydrazide organocatalyst for asymmetric Diels-Alder reactions, thus introducing a new aspect to organocatalysis.3 Enhanced diastereoselectivities and enantioselectivities of up to 96% were achieved by the application of the rigidified catalyst. The first crystal structure of a key iminium intermediate in an organocatalyzed process was also achieved. The hydrazide-catalyzed protocol was expanded to the enantioselective [3+2] cycloadditions of nitrones with alpha,beta-unsaturated aldehydes to provide isoxazolidines in excellent optical purity. A synthetic approach to the alpha-oximation of carbonyls was investigated. 1-chloro-1-nitroso cyclohexane can be used in conjunction with cyclohexanone with catalytic L-proline to provide alpha-oximated product in 98% enantiomeric excess, in modest yield. 1 Lemay, M.; Ogilvie W.W. Org. Let. 2005, 7, 4141. 2 Lemay, M.; Ogilvie, W.W. J. Org. Chem. 2006, 71, 4663. 3 Lemay, M.; Aumand, L. Ogilvie, W. W. Adv. Synth. Catal. 2007, 349, 341.
El túnel de Ernesto Sábato : literatura y nihilismo.
Creators: name: Leduc, Philippe B.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Literature, Modern.

description: Cette these est consacree aux problematiques de l'art, le desespoir, la verite et du nihilisme dans Le tunnel d'Ernesto Sabato. Notre approche est epistemocritique; c'est dire que nous etudions les savoirs textuels en fonction d'une perspective fondee sur plusieurs disciplines, dont la philosophie, l'analyse du discours et la psychanalyse. Il existe une abondante litterature critique portant sur ce roman, mais peu a ete fait dans cette optique. Notre approche traite la narration du peintre Juan Pablo Castel comme une facade qui dissimule une autre realite, plus problematique, qu'il convient d'identifier. Le langage du narrateur est regi par le stereotype, un mecanisme qui deforme le reel en lui donnant des apparences trompeuses. Le recit d'un crime se revele des lors etre un journal desespere, qui devoile la profonde angoisse d'un homme moderne en quete de reconnaissance affective. Mais cette quete est doublee d'une remise en question des valeurs de la modernite. Ce questionnement, ou quete de verite, est un processus nihiliste, puisqu'il propose, a travers le tableau Maternite, la dissolution de certaines valeurs et leur remplacement par une nouvelle authenticite. Tous les elements problematiques de ce journal desespere convergent vers Maternite, clef de voute symbolique du roman. Notre travail comprend quatre chapitres, qui suivent le fil conducteur de la quete desesperee de reconnaissance affective. Premierement, nous analysons les techniques narratives de Castel et comment se dissimule le desespoir dans son discours. Dans le second chapitre, nous etudions le role central de l'art dans le roman. Le troisieme chapitre est consacre aux problemes de communication et a la violence comme exutoire du desespoir. Finalement, nous etudions dans le dernier chapitre le cote philosophique de la quete de Castel: la remise en question des valeurs modernes.
Anti-pheromone as a tool for better exploration of search space
Creators: name: Montgomery, James
name: Randall, Marcus
Publisher: name: Swinburne
Year: 2024

description: Many animals use chemical substances known as pheromones to induce behavioural changes in other members of the same species. The use of pheromones by ants in particular has lead to the development of a number of computational analogues of ant colony behaviour including Ant Colony Optimisation. Although many animals use a range of pheromones in their communication, ant algorithms have typically focused on the use of just one, a substance that encourages succeeding generations of (artificial) ants to follow the same path as previous generations. Ant algorithms for multi-objective optimisation and those employing multiple colonies have made use of more than one pheromone, but the interactions between these different pheromones are largely simple extensions of single criterion, single colony ant algorithms. This paper investigates an alternative form of interaction between normal pheromone and anti-pheromone. Three variations of Ant Colony System that apply the anti-pheromone concept in different ways are described and tested against benchmark travelling salesman problems. The results indicate that the use of anti-pheromone can lead to improved performance. However, if anti-pheromone is allowed too great an influence on ants' decisions, poorer performance may result.
Herpes simplex virus type 2 regulates the IFN-gamma receptor expression and function
Creators: name: Chu, Yatson
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Health Sciences, Immunology.

description: This study shows that HSV-2 can cause down-regulation in IFN-gammaR expression on the monocyte surface in both HSV-2 seropositive and seronegative patients. The objective of this work is to examine and explain the mechanisms involved in the viral down-regulation of IFN-gammaR. The first question I tried to answer was whether humoral factors might participate in this down-regulation. Humoral factors were not involved in this phenomenon. Next, cell-to-cell interactions were examined. T, B or natural killer cell depletion experiments were conducted in peripheral blood mononuclear cells of both HSV2 seropositive and seronegative patients. The results suggest that NK cells and T cells but not B cells were involved in the IFN-gammaR downregulation in HSV-2 seropositive patients. In addition, purified monocytes also demonstrated IFN-gammaR down-regulation after HSV-2 exposure in seropositive patients. I concluded that, in HSV-2 seropositive patients, NK cells may have an inhibitory effect and T cells may have a facilitatory role in the down-regulation of IFN-gammaR. (Abstract shortened by UMI.)
Scouring around a cylindrical bridge pier under partially ice-covered flow condition
Creators: name: Munteanu, Adrian
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Engineering, Civil.

description: This thesis reports on the first step of an ongoing study of scouring around a cylindrical bridge pier under ice-cover conditions. Previous research confirmed that sediment transport decreases in ice-covered flow compared to free-surface flow. However, most of that research was conducted in a flow depth adjustment condition, maintaining constant the energy slope for both the ice-covered and the free-surface flow. This represents a valid hypothesis when an appropriate length scale is considered (i.e. long river reaches), but numerous other phenomena must be analyzed at a much shorter length scale: i.e. river reaches that contain abutments, bridge piers, cross-section alterations, tide bends, etc. According to Zabilansky et al. (1996--2002) findings, in these cases we can confirm that for an ice-covered flow in nature it is common to adjust faster the energy slope than the flow depth, thus, leading to drastic changes in the sediment transport and scouring behaviour. From a scouring point of view, when the flow depth has minor variations compared to the energy slope changes, the presence of an ice-cover significantly increases the flow velocities in the bottom half of the flow depth. As a result, a larger part of the flow energy is directed to the scouring process compared to the free-surface case. (Abstract shortened by UMI.)
Uni Ulm intern - das Ulmer Universitätsmagazin, Nr. 200 (25. Jg.), Oktober 1995
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Ulm
Year: 2016
Subjects: subject: Uni Ulm intern
subject: Universities; Germany; Ulm
subject: Ulm / Universität

description: N/A
Supplementary document for Disentangling X-ray dichroism and birefringence via high-purity polarimetry - 4954277.pdf
Creators: name: Schmitt, Annika
name: Joly, Yves
name: Schulze, Kai
name: Marx-Glowna, Berit
name: Uschmann, Ingo
name: Grabiger, Benjamin
name: Bernhardt, Hendrik
name: Loetzsch, Robert
name: Juhin, Amelie
name: Debray, Jérôme
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement
Geology of the B-baseline zone, Walton barium-copper-lead-zinc-silver deposit, Nova Scotia.
Creators: name: Burtt, Martin David.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Geology.

description: The Walton Ba-Cu-Pb-Zn-Ag deposit, Nova Scotia, is hosted by Visean-aged carbonate rocks of the Macumber Formation and its associated breccia. The Macumber Formation in the Walton area is divided into two units, the lower Macumber, a laminated carbonate 30-40$\sp\prime$ thick and the upper Macumber, a synsedimentary slump breccia that forms two mounds up to 70$\sp\prime$ thick. Outside the immediate mine area the carbonate is either limestone or dolostone; the Macumber Formation surrounding the deposit has been altered by hydrothermal fluids to manganiferous siderite. Based on barite and metal content two main ore types were defined. Type I comprises barite and variable sulphide contents, whereas Type II comprises only sulphides. Type I ore forms a stratiform sheet which straddles the upper Macumber/lower Macumber contact and contains lenses of Pb-rich and Cu-rich ore. Type II ore is most commonly associated with the upper Macumber mounds where it forms a large pod which cuts the Type I ore zone. The host stratigraphy is presently steeply dipping and faulted, both of which are considered to be post-ore events. The Walton deposit probably formed when uplift of the Cobequid Highlands in the late Namurian initiated gravity-driven flow of basinal fluids through a basal aquifer within the Horton Bluff Formation. The hot fluids flowed south toward the basin margin and leached salts and metals from the aquifer. In the Walton area these fluids were released, along faults, into the overlying Macumber carbonate and synsedimentary carbonate breccia, replacing them initially with manganiferous siderite. (Abstract shortened by UMI.)
Supplementary document for Disentangling X-ray dichroism and birefringence via high-purity polarimetry - 4954277.pdf
Creators: name: Schmitt, Annika
name: Joly, Yves
name: Schulze, Kai
name: Marx-Glowna, Berit
name: Uschmann, Ingo
name: Grabiger, Benjamin
name: Bernhardt, Hendrik
name: Loetzsch, Robert
name: Juhin, Amelie
name: Debray, Jérôme
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Supplement
Global immunization policy making processes
Creators: name: Bryson, Maggie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Health Sciences, Epidemiology.

description: Despite national immunization programs existing in each country, the national immunization policy development processes are not well described. One approach used to facilitate the process is that of national immunization technical advisory groups (ITAGs) which make technical recommendations to the national government to guide immunization policies and programs. To better understand the current policy making processes of countries across the globe, a systematic review as well as a global level survey were conducted. This thesis summarizes the characteristics of national immunization policy development processes in all countries as well as the existence of national ITAGs and their characteristics and modes of operation. In conclusion, ITAGs are considered a useful tool by countries for immunization policy development but many countries lack this tool and many of the existing groups need strengthening. Additional evaluation of these groups and further research is needed.
The melodramatic form in the "Hardy Boys": An analysis of a popular juvenile fiction series.
Creators: name: Roberts, Laurie M.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1994
Subjects: subject: Literature, American.

description: An analysis was undertaken of 29 volumes of a popular juvenile fiction series, the Hardy Boys, in publication since 1927. Drawing upon Victor Turner's schema of social drama, this study sought to examine the degree to which the melodramatic form is employed in the texts. The distinguishing characteristic of the melodramatic form is the portrayal of a villain or villains who have breached the social order and who, upon defeat, are subject to a process of exclusion from the social order. In addition, with its emphasis on crime and the pursuit of criminals, the series allowed for the analysis of changing images of deviance and social order in popular youth fiction over time. Given the intent to examine the manifest content as well as the underlying frameworks and structures of the texts, both a content analysis and a linguistically-based structural analysis were employed. Overall, the hypothesis that the Hardy Boys books are melodramatic in form was supported. In 28 of the 29 texts, characters who were portrayed as villains were, upon defeat, subject to a process of exclusion. Moreover, as further hypothesized, changing images of deviance and social order were reflected in the series over time. Central to the findings of the present study was the role of ritual in the enactment of social drama. Ritual or ceremonial acts provide the means by which characters' positions within--or outside of--the social order are established in the texts. As such, this study demonstrates the degree to which ritual is integral to class stratification. It further suggests that the performance of ritual, in providing a mechanism through which the social order is maintained and legitimated--or alternatively, contested and subjected to processes of change--furnishes a stage for the enactment of hegemonic struggles.
Rhodium catalyzed carbonylation and related reactions of nitrogen-, sulfur- and oxygen-containing cyclic and acyclic compounds.
Creators: name: Khumtaveeporn, Kanjai.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Chemistry, Organic.

description: A systematic investigation has been carried out on the rhodium(I) catalyzed carbonylation of heterocyclic and acyclic compounds containing two heteroatoms at the 1,3-positions. The regioselectivities of carbon monoxide insertion are different in cyclic and acyclic compounds. When there is a choice between C-S and C-N bonds, in acyclic compounds, carbonylation of the C-N bond is more facile and the C-S bond is more easily carbonylated in acyclic compounds. When there is a possibility of ring or side chain carbonylation, it appears that the C-X bond of the side chain is more reactive. Rhodium(I) was also used to catalyze the carbonylation reaction of the N-O bond of isoxazolidine derivatives. When Ir-complexes were used as catalysts, the carbonylation occured and was followed by hydrogen transfer affording tetrahydro-1,3-oxazines as the final products. It was also found that substituents on the isoxazolidines have a dramatic effect on the reactivity of these substrates.
Novel Insights into Plant Genome Evolution and Adaptation as Revealed through Transposable Elements and Non-Coding RNAs in Conifers
Creators: name: Liu, Yang
name: El-Kassaby, Yousry A.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2019

description: Plant genomes are punctuated by repeated bouts of proliferation of transposable elements (TEs), and these mobile bursts are followed by silencing and decay of most of the newly inserted elements. As such, plant genomes reflect TE-related genome expansion and shrinkage. In general, these genome activities involve two mechanisms: small RNA-mediated epigenetic repression and long-term mutational decay and deletion, that is, genome-purging. Furthermore, the spatial relationships between TE insertions and genes are an important force in shaping gene regulatory networks, their downstream metabolic and physiological outputs, and thus their phenotypes. Such cascading regulations finally set up a fitness differential among individuals. This brief review demonstrates factual evidence that unifies most updated conceptual frameworks covering genome size, architecture, epigenetic reprogramming, and gene expression. It aims to give an overview of the impact that TEs may have on genome and adaptive evolution and to provide novel insights into addressing possible causes and consequences of intimidating genome sizes (20–30 Gb) in a taxonomic group, conifers.
Muscle temperature transients and post-exercise esophageal temperature elevation.
Creators: name: Denis, Paul.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Biology, Animal Physiology.

description: The primary purpose of this research was to study esophageal temperature elevation and quadriceps and triceps intra-muscular temperature gradients during resting recovery from exercise. Eight physically active male participants and 24 +/- 4 years of age, rested in a buttocks supported upright posture for a 50 +/- 12.5 minutes in ambient conditions of 24.7 +/- 1.17°C and 24 +/- 4.6% relative humidity. Participants then performed a steady state cycle ergometry exercise at 70% VO2 max, until they reached until heat produced by exercise above metabolic rate accumulated to 1000 kJ. This was followed by 120 minutes of resting recovery. Active intra-muscular temperature was measured in the vastus medialis at four depths, with the tip of the probe being at 10 mm from the femur and deep femoral artery and the others sensor at 15, 30 and 45 mm from the tip of the probe. Pre-exercise resting esophageal temperature and quadriceps intra-muscular temperatures were 36.95 +/- 0.22°C (Tes), 36.31 +/- 0.39°C (Tmuq1), 36.10 +/- 0.50°C (Tmuq2), 35.75 +/- 0.84°C (Tmuq3) and 35.33 +/- 0.88°C (Tmuq4) respectively. Exercise resulted in a 0.94 +/- 0.32°C increase in esophageal temperature above pre-exercise resting values. End of exercise intra-muscular quadriceps temperatures were 38.81 +/- 0.42°C (T muq1), 38.61 +/- 0.60°C (Tmuq2), 38.13 +/- 0.75°C (Tmuq3) and 37.71 +/- 0.96°C (Tmuq4 ). Esophageal temperature remained significantly elevated from pre-exercise resting values for 10 minutes following exercise. These results indicate that post-exercise esophageal temperature elevation, following cycle ergometry exercise, is not dependent on a temperature gradient between esophageal temperature and deep muscle temperature from the previously active muscle. Further, a prolonged and sustained post-exercise esophageal temperature was not demonstrated following this cycle ergometry exercise.
title: Gastrostomía: ¿Radiológica, Endoscópica o Quirúrgica?. ¿Técnicas que compiten o complementarias?.
Creators: name: Leyva Vásquez-Caicedo, Marco
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Stomach (incl. Oesophagus)

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Conocer las diferentes formas de colocar una gastrostomía: Radiológica,
endoscópica y quirúrgica,
con sus ventajas e inconvenientes. Revisar las indicaciones,
contraindicaciones,
técnica,
manejo posterior y complicaciones de la gastrostomía...
title: Money: Commodity Versus Fiat
Creators: name: Byington, Jenifer Karen
Publisher: name: Utah State University
Year: 1998

description: Most economists would agree that money is a very important part of an economy. It allows people to trade and exchange freely and much more easily than if the economy were left with only the use of barter. Without money it would be necessary for each person to trade one good for another good. It would take time for each person to decide how much of one good would be equivalent to the other good, and each party would need to want what the other party has to offer. The purpose of this paper is to examine different types of money in order to determine which type is the most viable and which best helps an economy facilitate trade.