cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An empirical study of dictionary use in version.
Creators: name: Mackintosh, Kristen.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Language, Linguistics.

description: This thesis reports on an empirical study of dictionary use in translation from a foreign into a native language (version). The purpose of the study was to gather information on how student translators use dictionaries in version, particularly when translating specialized texts, and to see what effects certain aspects of dictionaries have on them. The study consists of two tests conducted on translation students (Francophone and Anglophone) at the University of Ottawa. The first test was designed to gather general information about students' use of dictionaries in version. The main issues explored in this test are the following: (1) Integration of dictionary use into the version task; (2) Most common reasons for consulting dictionaries; (3) Types of dictionaries most frequently consulted; (4) Elements of entries most frequently used; (5) Most common and most satisfactory dictionary-use strategies; (6) Major causes of dissatisfaction; (7) Choice of definitional metalanguage. The second test was designed to further explore some of the findings of test 1 on the issue of definitional metalanguage. Specifically, it was conceived to measure the ability of translation students to cope with L1 and L2 definitional metalanguage.
title: Exploración mediante US de la región inguinal. Nuestra experiencia.
Creators: name: Fernandez Muñoz, Israel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Anatomy
subject: Abdomen
subject: Ultrasound
subject: Ultrasound-Colour Doppler

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Se describe la anatomía normal y ecográfica de la región inguinal,
así como las indicaciones de esta técnica. Por otra parte,
se exponen las características radiológicas principales por US de la patología que la...
Kometen im Bilderzyklus "Die Anbetung der hl. drei Könige"
Creators: name: Keim, Frank
Publisher: name: Universität Ulm
Year: 2016
Subjects: subject: Kunstgeschichte
subject: DDC 500 / Natural sciences & mathematics
subject: Astronomy
subject: Astronomie
subject: Botticelli, Sandro
subject: Komet
subject: Renaissance

description: In einem Zeitraum von mehr als 30 Jahren schuf Sandro Botticelli fünf Anbetungen der hl. drei Könige. Die erste Anbetung entstand vor 1470; sie wurde wahrscheinlich von Filippo Lippi (1406 - 1469) begonnen und gilt als erstes von Botticelli vollendetes Werk. Allerdings beginnen sich die Gewichte in diesen Anbetungen zu verschieben. Die Anbetung des Kindes durch die Könige steht nur pro forma im Zentrum. Als eigentliches Thema der Bilder wird die Beobachtung außergewöhnlicher Himmelsphänomene, speziell der Kometen, etabliert.
The Influence of Electrical Fires in Residential Homes : Geospatial Analysis Pointing to Vulnerable Locations and Equipment Failures
Creators: name: Zheng, Alex
name: Rajabali, Fahra
name: Turcotte, Kate
name: Garis, Len
name: Pike, Ian, 1958-
Publisher: name: The University of British Columbia
Year: 2021

description: Secondary suites are becoming more common as a way to relieve the burden of rising housing prices in British Columbia and basements are often converted for this purpose. However, home owners often circumvent the permission and inspection requirements for these conversions in order to save on expensive upgrades for compliance. As a result, there are many under the radar secondary suites that go uninspected and often do not meet safety standards. In order to limit the increased risks these secondary suites pose, one plan is to send safety inspectors to visit and inspect homes. The purpose of this study is to aid inspectors by determining whether certain jurisdiction types, living spaces in the home (in particular basements), or equipment in the home carry increased risks for electrical fires and should be inspected with higher priority. Between 2004 and 2017, there were a total of 28,160 residential fire incidents in British Columbia; of which, 2,635 (9.4%) were electrical fires. These electrical fires resulted in a total of 150 casualties (combined deaths and injuries) and just over $150 million in damages.
Towards a UML profile on formal semantics for modeling multimodal interactive systems - concepts for modeling interactive systems using standard tools of software engineering
Creators: name: Dausend, Marcel
Publisher: name: Universität Ulm
Year: 2016
Subjects: subject: ASM
subject: HCI
subject: MDD
subject: DDC 004 / Data processing & computer science
subject: Human-computer interaction
subject: Modeling
subject: Multimodales System
subject: UML

description: An inherent general problem is that systems become more complex. This problem is exacerbated by the use of additional interaction concepts like multimodality. Interactive systems are widespread and often apply advanced interaction concepts to ease use and enhance user experience. Touch interaction and multimodality are concepts that are on the rise and are already offered by many commercial products. For example, user interfaces of the infotainment equipment in current premium cars provide speech interaction, especially to increase operational safety. A common state-of-the-art approach to master complexity comprising all phases of software development is Model-Driven Development. Modeling raises the level of abstraction by using (mainly graphical) models to bridge the gap between specification and implementation. The Unified Modeling Language (UML) is the de facto standard modeling language. Although UML has proven itself in practice, it does not support modeling of interactive systems and their user interfaces so far. We present an approach to extend UML for modeling interactive systems. We emphasize on modeling multimodality by using and extending UML state diagrams, by creating UML compliant extensions based on UML profiles, and by defining formal semantics for our extensions including behavioral aspects by means of Abstract State Machines. We propose an architecture using separate state diagrams for each modality. These state diagrams are synchronized by a common system model. The suitability, usability, and applicability of our approach is reviewed by means of an expert evaluation. Our approach enables modeling multimodal interactive systems with one formalism. Thus, it supports an integrated kind of modeling as well as separation of different concerns of multimodality. The provided formal semantics for our UML profile enables automated processing of our models including comprehensive tool support for simulation and code generation.
The development of displacement-based toroidal elasticity.
Creators: name: Zhu, Yanying.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Engineering, Mechanical.

description: Toroidal Elasticity (TE) is a three-dimensional theory used for the elastostatic analysis of thick-walled curved pipes, elbows, and toroidal shells. A displacement-based approach to TE is used in the present study, and analytical solutions are set up using the method of successive approximations. Three problems are solved analytically for the first time to illustrate the approach. The first problem concerns a 90$\sp\circ$ cantilevered elbow subjected to an out-of-plane couple at the free end. A real form general solution is developed up to the third order approximation, and results obtained are compared with boundary element results. The second problem concerns an axisymmetric sectorial toroidal ring subjected to loads on its radial surfaces. A complex form solution is developed with the aid of homogeneous eigenfunctions. Numerical results obtained are compared with finite element results. The third problem concerns a toroidal shell subjected to band loads of normal pressure. The applied loading is expanded in a Fourier series, and analytical solutions are developed for each term of the series. Numerical results are computed and again are compared with finite element results. The present work demonstrates the use of displacement based TE for the analytical prediction of displacement and stress in toroidal geometries, and the agreement between the displacement based TE solution and numerical results.
Umweltverträglichkeit von Kunststoffbelägen auf Sportfreianlagen
Creators: name: Bandow, Nicole
name: Kalbe, Ute
name: Susset, Bernd
Publisher: name: Sportverlag Strauß
Year: 2016
Subjects: Bodenbelag
Kunststoff
Umweltverträglichkeit
Schadstoffemission
Modellierung

description: Dieses Buch ist die Fortstzung des 2012 ebenfalls in der Schriftenreihe des Bundesinstituts für Sportwissenschaft (2012,02) erschienenen Berichts zum Thema "Umweltverträglichkeit von Kunststoff- und Kunststoffrasenbelägen auf Sportfreianlagen". Bei der ersten Untersuchung lag der Focus auf der Entwicklung von Testmethoden im Labormaßstab, die eine Bewertung des Schadstoffaustrags und des möglichen Gefahrenpotentials für Mensch und Umwelt ermöglichen. Folgerichtig setzte sich das aktuelle Projekt nun mit der Modellierung der Stofffreisetzung auseinander. Diese ist Voraussetzung für eine Bewertung der Boden- und Grundwasserverträglichkeit der untersuchten Sportbodensysteme. Dieses Buch ist die Fortstzung des 2012 ebenfalls in der Schriftenreihe des Bundesinstituts für Sportwissenschaft (2012,02) erschienenen Berichts zum Thema "Umweltverträglichkeit von Kunststoff- und Kunststoffrasenbelägen auf Sportfreianlagen". Bei der ersten Untersuchung lag der Focus auf der Entwicklung von Testmethoden im Labormaßstab, die eine Bewertung des Schadstoffaustrags und des möglichen Gefahrenpotentials für Mensch und Umwelt ermöglichen. Folgerichtig setzte sich das aktuelle Projekt nun mit der Modellierung der Stofffreisetzung auseinander. Diese ist Voraussetzung für eine Bewertung der Boden- und Grundwasserverträglichkeit der untersuchten Sportbodensysteme. Quelle: Verlagsinformation
title: Metástasis músculo-esqueléticas en los pacientes con melanoma.
Creators: name: Cigüenza Sancho, Monica
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Metastases
subject: Diagnostic procedure
subject: CT
subject: MR
subject: PET-CT
subject: Musculoskeletal soft tissue
subject: Musculoskeletal bone

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
El objetivo de este estudio es: 1.-Evaluar la incidencia de la afectación músculo-esquelética metastásica en los pacientes diagnosticados de melanomay/o en su reevaluación conrecidiva de su enfermedad. 2.-Mostrarlas técnicas de imagen de...
Trends in utilization of proton pump inhibitors in British Columbia
Creators: name: Therapeutics Initiative (University Of British Columbia)
Publisher: name: The University of British Columbia
Year: 2023

description: Therapeutics Letter 118 investigates trends in utilization of proton pump inhibitors in British Columbia, Canada. Conclusions PPI utilization in British Columbia has risen much faster than population growth. For most indications, PPIs are only recommended for up to 8 weeks duration. In many clinical settings, we do not know whether the benefits of long-term PPI use outweigh the harms. Patients on long-term PPI therapy should be reassessed.
title: Philosophical Questions About the Ethics of Intellectual Property
Creators: name: Anderson, Jason Ellis
Publisher: name: Utah State University
Year: 1998

description: Intellectual Property can be divided into two broad categories, Patents and Copyrights or Trade Secrets. Trade Secrets as it nomenclature suggests are secrets kept for some economic reason. The classic example of a Trade Secret is the Coca-Cola formula. This formula has been the foundation of its empire yet is only protected by its right to secrecy. Trade Secret justifications are fairly clear and based on the right of privacy and personal autonomy. The key difference between Trade Secrets and Patents/Copyrights are that Patents or Copyrights are accessible to the public. Trade Secrets are required to be inaccessible and non-disclosed.
PRISM schism: the NSA leaks reveal a broken system
Creators: name: Branch, Philip
Publisher: name: Swinburne
Year: 2024

description: If reports are to be believed, the US National Security Agency (NSA) has had 'direct access' to systems run by Google, Facebook, Yahoo and Apple. While all the companies named have used similar words to deny those claims, the alleged scale of the surveillance, its sophistication and the lack of independent oversight are still very alarming.
Supplementary document for Computational tissue staining of non-linear multimodal imaging using supervised and unsupervised deep learning - 4975533.pdf
Creators: name: Pradhan, Pranita
name: Meyer, Tobias
name: Vieth, Michael
name: Stallmach, Andreas
name: Waldner, Maximilian
name: Schmitt, Michael
name: Popp, Juergen
name: Bocklitz, Thomas
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized
Nonlinear Optics and Spectroscopy

description: Supplementary document
Purification and properties of Halobacterium cutirubrum L-alanine dehydrogenase.
Creators: name: Kim, Edward K.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1978
Subjects: subject: Chemistry, Biochemistry.

description: The purpose of this work was to purify and study an extreme halophile enzyme unrelated to nucleic acid metabolism in order to compare its properties with those of H. cutirubrum polynucleotide phosphorylase, DNA-dependent and RNA-dependent RNA polymerase, and alkaline phosphatase. The last four enzymes were found to be unusually small by Fitt and his collaborators and it was desirable to examine in detail a protein unrelated to nucleic acid metabolism. L-alanine dehydrogenase was chosen because its assay is straight-forward and preliminary studies showed that it was highly active in crude extracts of H. cutirubrum. The enzyme was purified approximately 100-fold by a simple procedure and found to have a molecular weight of 72,500, about one third that of the two well-studied alanine dehydrogenase from non-halophiles. It catalyses the oxidative deamination of L-alanine and L-alpha-aminobutyric acid to pyruvate and alpha-ketobutyric acid, respectively, and the reductive amination of pyruvate and several other alpha-keto acids. An unusual feature is the absolute requirement of the enzyme for K + for catalysis of the oxidative deamination reaction; Na+ , Li+, Cs+, and NH+4 are unable to replace K+. In contrast, in the reductive amination reaction the enzyme is fully active in the presence of high concentrations of K+, Na+ or NH+4 and partially active with Cs+ or Li+ - NH+4 , is, of course, an essential substrate in this reaction as well. As in the case of most other halophilic enzymes, the L-alanine dehydrogenase requires a high salt concentration absolutely for stability and activity. The activity of the enzyme increases with temperature up to 70°C, but the protein itself is not thermostable.
Exploring the CLEWs Model for India: Coal Retirement vs Forest Cover for Lowering Emissions
Creators: name: Gupta, Mayank
Publisher: name: Zenodo
Year: 2024

description: The presentation details the analysis of the potential impacts of two major policy interventions in India's energy and environmental sectors: the retirement of ageing coal plants and the systematic increase in forest cover. Using the CLEWs model, this study compares three scenarios: Business As Usual (BAU), Coal Retirement, and Forest Cover Increase from 2020 to 2050. The analysis aims to evaluate the effectiveness of these interventions in mitigating carbon emissions and their implications for land use and water demand in the context of the urgent and pressing climate crisis, underlining the critical need for immediate action.
title: Defecografía por resonancia. Nuestra experiencia.
Creators: name: Lozano Calero, Carmen
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Pelvis
subject: Gastrointestinal tract
subject: MR
subject: Defecography

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
Las alteraciones del suelo pélvico son frecuentes y afectan fundamentalmente a mujeres adultas. Pueden afectar de forma simultánea a más de una víscera de los distintos compartimentos pélvicos y engloba entidades como cistocele,
prolapso rectal...
Origins of Martian valley networks based on a comparative statistical analysis of Martian and terrestrial basin shape functions
Creators: name: Carriere, Melanie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Geology.

description: Despite more than 35 years of study since the discovery of the Martian valley networks, questions still exist as to the fluvial process responsible for their origin. As part of the investigation on the relative importance of surface runoff versus groundwater sapping in the formation of the Martian valley networks, morphometric methods provide an objective and quantitative approach. In this study, four shape indices (circularity, elongation, lemniscate index and lemniscate ratio), traditionally used to quantify the planimetric shape of terrestrial drainage basins, are adapted into shape functions to determine the evolution of basin shape with elevation. The shape functions of 39 terrestrial basins of known origins (surface runoff, groundwater sapping, or meltwater) are analyzed to determine their ability to distinguish between different formation processes. Through hierarchical clustering analysis, it is determined that regional slope exerts a stronger control on a basin's internal shape than formation process. Once basins are divided into separate groups based on their regional slope (steep vs. flat), hierarchical clustering analysis is successful at clustering basins with respect to their formation process based on their shape functions. The shape functions are then used to characterize 23 Martian valley networks. Using self-organizing maps and k-nearest neighbour, the shape functions of the Martian basins are classified as most similar to the groundwater sapping basins of Chile's Atacama Desert. However, reasons for this similarity are not limited to groundwater sapping and could also be attributed to, among other possibilities, a combination of intermittent and scarce precipitation, the effects of impact cratering, or differences in the erosional mechanics that formed the Martian valley networks.
Une analyse pragmatique de l'enchaînement des énoncés : étude des romans d'Anne Hébert.
Creators: name: Kassim, Zarin.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Literature, Canadian (French).

description: Dans notre etude a caractere demonstratif, l'oeuvre hebertienne qui se distingue souvent par une ecriture particuliere sert de corpus. La problematique des enchai nements sous cet nouvel angle de la pragmatique textuelle nous permet de decouvrir les caracteristiques formelles de l'ecriture hebertienne si souvent ignorees. Le recours a cette perspective se fait par un processus de validation dans la premiere partie de la these qui demontre l'insuffisance des approches traditionneles pour traiter de la problematique de l'enchai nement. Nous avons demontre, a travers les differentes approches pragmatiques, les roles qu'assument les conjonctions connus sous le nom de "connecteurs". Ainsi sont mis en evidence le contraste entre la perspective traditionnelle qui etablit des rapports predetermines et des rapports bases sur les nuances semantiques entre les phrases et la perspective nouvelle, celle de la pragmatique, qui, en faisant intervenir la situation d'enonciation et les elements discursifs qui l'accompagnent, marque des rapports plus enrichis et diversifies. Etant donne que l'enchai nement par connecteur est un aspect de connexite dans le texte, il a fallu selectionner d'autres phenomenes transphrastiques qui permettent le developpement et la progression du discours suivi. Nous avons donc propose, pour le texte litteraire, une methode d'analyse qui combine les elements linguistiques et non linguistiques. La mise en application des procedes et des faits discursifs proposes precedemment se fait a partir d'un extrait des Fous de Bassan. Nous avons ensuite analyse le fonctionnement et les roles narratifs des enchai nements les plus recurrents, les procedes stylistiques employes et les sources d'effets de decousu dans l'ecriture a travers deux situations d'enonciation dans ce roman, la narration des evenements et celle des pensees. Enfin, une validation du fonctionnement et des roles narratifs de ces memes enchai nements et celles de certains traits de style deja releves se font a partir des autres oeuvres d'Anne Hebert. Au cours de cette validation, les differences et les points de ressemblance dans l'ecriture sont egalement soulignes. Mais ce processus a surtout pour but de confirmer la recurrence des roles des enchai nements et la reiteration de certaines caracteristiques de l'ecriture hebertienne dans chaque oeuvre. A part les remarques sur l'evolution de l'ecriture et les considerations d'ordre litteraire sur l'aspect formel du corpus aux quelles elle conduit, cette etude a permis de demontrer qu'il y a un determinisme latent sous forme de recurrence de certains schemas qui sous-tend l'ecriture hebertienne. (Abstract shortened by UMI.)
Chlorination disinfection by-products in drinking water and risk of pancreatic cancer.
Creators: name: Do, Minh T.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Engineering, Sanitary and Municipal.

description: This thesis studied the effect of chlorination disinfection by-products (CDBPs) in drinking water on the risk of developing pancreatic cancer. The study was based on the case-control component of the National Enhanced Cancer Surveillance System. Incident cases and frequency-matched population controls recruited between 1994 and 1997 from six Canadian provinces were used to estimate pancreatic cancer risks associated with exposure to CDBPs. Residence history collected from subjects was linked to two sources of water quality data to estimate historical exposure. The first source provided a lifetime average estimate of known exposure to trihalomethane (THM), bromodichloromethane (BDCM), and chloroform (TCM), while the second provided residence-specific estimates of THM exposure. Adjusted risk estimates were based on the most recent 30 years of exposure with missing data imputed using Observed Control Mean Imputation. Overall, no consistent significant increase (or decrease) in pancreatic cancer risks was observed with 30-year exposure to THM, BDCM, and TCM after adjusting for potential confounders.
Multi-layered semantic-based watermarking for medical images
Creators: name: Lau, Jack Sing Ik
Publisher: name: Swinburne
Year: 2024

description: Digital watermarking has drawn great attention in data integrity control and authentication lately. From the medical media perspective, one of the main applications of digital watermarking includes the embedding of patient's information into the medical media itself for the purpose of protecting the integrity of the medical media, as well as providing controls to the use of the media in the picture archiving and communication system (PACS). However, not all parts of a medical media carry the same level of importance for diagnosis and prognosis' purposes, such as digital mammograms which we are focusing on in this thesis. Furthermore, with the finite embedding capacity of the media, it is a constant challenge for one to retain the visual quality of the important regions for ensuring accurate diagnosis purposes. Therefore, there is a need for these regions of higher importance to be 'free' from visible watermarking distortion. Besides, it is also advantageous to implement some automated selection methods for these regions to eliminate the need of manual selection. In this thesis, we have implemented a reversible watermarking scheme which is capable of large capacity of data hiding, automated medical importance regions definition, running authentication to assure the integrity of the important regions on the medical images, and original image restoration. As an empirical study, we have implemented five image segmentation methods to define the segments of the image; block average, pixel classification, improve moment-preserving thresholding (IMPT), saliency map, and IMPT on saliency map. Furthermore, we conducted an analysis on both the watermarking techniques and the regions definition methods proposed in order to determine a robust combination of the above suitable for general scenarios. Besides, our scheme is capable of authentication on the protected image and verifying its integrity. The purpose for this feature is to prevent the unauthorized modification on the image which might leads to a medical misjudgment. Whenever a watermarked image is defined authentic, the scheme is capable of reconstructing the original image from the watermarked image such that medical diagnosis and prognosis process can be carried out. In addition to the above, a security analysis on the scheme is carried out to compare the proposed scheme with existing watermarking schemes with similar features and purposes. For real-time deployment, the embedding process of the proposed scheme is ported to the Compute Unified Device Architecture (CUDA) and an execution speed increase of up to 4x is observed from the empirical results.
Algorithms for generating integer partitions.
Creators: name: Zoghbi, Antoine C.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1993
Subjects: subject: Computer Science.

description: In this thesis we consider the problem of generating integer partitions. We provide an overview of all known algorithms for the sequential generation of partitions of an integer. The performance is measured and compared separately for the standard and multiplicity representation of integer partitions. We present two new algorithms for generating integer partitions in the standard representation which generate partitions in lexicographic and antilexicographic order respectively. We prove that both algorithms generate partitions with constant average delay (exclusive of the output; output is generated and not printed). Historically, all existing algorithms for generating integer partitions in the multiplicity representation showed better performance than all the existing algorithms for generating integer partitions in the standard representation. An empirical test shows that both new algorithms are a few times faster than any previously known algorithms for generating unrestricted integer partitions in the standard representation. Moreover, they are faster than any known algorithm for generating integer partitions in the multiplicity representation (exclusive of the output). We describe several modifications to existing algorithms, and a transformation of one algorithm from the standard to the multiplicity representation. Finally, we provide a brief overview of sequential and parallel algorithms that generate partitions at random, and an analysis of a parallel algorithm for generating all partitions.
The local scouring phenomenon at bridge abutments terminating in the floodplain zone.
Creators: name: Kouchakzadeh, Salah.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1996
Subjects: subject: Engineering, Civil.

description: This study examines the local scouring phenomenon associated with bridge abutments exposed to combined main-channel (MC) and floodplain (FP) flows. The principal goal of the study was to develop and validate, based on a comprehensive physical-model testing programme that considered different abutment shapes, an improved relationship for predicting maximum scour depth. A relationship was established among sediment size, flow depth and longitudinal channel slope for initiating the threshold condition of bed material movement. This relationship facilitated the selection of sediment size and channel bed slope for the various experiments, which were performed in a compound channel under interacting (combined MC and FP flows) and non-interacting (isolated FP flow) conditions. Clear-water approach-flow conditions were utilized throughout the testing programme. A flow visualization technique was employed to study the various patterns of the combining flows in the MC/FP junction regions. It determined both the flow deflection angle and the extent of the influence zone (a portion of the channel width beyond the abutment) whose discharge, $Q\sb{w}$, contributes to the scour development. Maximum scour depths produced under interacting conditions were observed to be 15% to 30% greater than those observed for non-interacting conditions. This important observation clearly demonstrated the need to properly account for compound-channel effects in the simulation exercise. The scour prediction relationship presented herein is based on a dimensional analysis of the relevant parameters and incorporates the data obtained from the laboratory studies performed in a compound channel using vertical-wall, wing-wall, semi-circular, and spill-through abutment shapes. The model indicates a very good agreement between predicted and observed maximum scour depths for bridge abutments terminating in the FP zone.
Biological activities and mode of action of lignans from the Piperaceae.
Creators: name: Bourret-Bernard, Claude.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Biology, Ecology.

description: Tropical American Piper spp. have insecticidal activities comparable to those of previously studied African and Asian species. Effects of dietary administration of the crude ethanolic extracts of Piper spp. to the European corn borer, Ostrinia nubilalis Hubner, include a reduction of larval growth, a high death rate of larvae, pupae and adults, and a limited effect on the consumption and digestion of food. Among 16 Piper extracts the most active American species were, in decreasing order of growth reducing activity: P. tuberculatum, P. aduncum, P. pseudo-lindenii, P. lanceiaifolium, P. guanacastensis, P. decurrens, P. carilloanum, and P. auritum. Bioassay-guided isolation, using mosquito larvae, led to the isolation of a monolignan, dillapiol, as an active principle of P. aduncum, two neolignans as active principles of P. decurrens, and an amide, piperlonguminine as an active principle of P. tuberculatum. The new isolation of the neolignans and the amide gives further evidence of the biological significance of these two classes of compounds as chemical defenses of the piperaceae. The activities of a series of 15 pure monolignans, lignans, and neolignans were investigated with the polyphagous lepidopteran herbivore, the European corn borer, which has a high adaptive capacity to tolerate plant allelochemicals. The lignans (at a dose of 100 $\mu$g/g in the diet) were generally not highly toxic to the larvae, except for the monolignan dillapiol. However, delayed toxicity was revealed as mortality increased later in the life cycle, reaching at the adult stage a cumulative mortality of 95%, 68%, 60%, 43% and 40% with dillapiol, epiashantin, podophyllotoxin, epiyangambin and cubebin, respectively. The growth profile of larvae further showed that lignans are slow acting toxins, except for dillapiol and cyclolignans of the podophyllotoxin series. Antifeedant activity of the lignans was generally poor. Cubebin was the most active antifeedant with respect to the ECB with a protective concentration, PC$\sb{50}$, of 74 $\mu$g/g. There was a trend of increasing toxicity of lignans which generally parallelled the evolutionary advancement in biosynthesis. Because of their role in reversing insecticide resistance, lignans were tested for their activity on multidrug resistant (MDR) cells with overexpression of the membrane P-glycoprotein. MDR cells responded to the group of cyclolignans in a way similar to the response of other drugs which belong to the multiresistant group, while they showed important collateral sensitivity to the furans and even more to the monolignan dillapiol. An increased uptake of the anticancer drug vinblastine was observed upon co-administration of dillapiol. This activity constitutes a novel mode of action of this lignan, and possibly other insecticide synergists such as piperonyl butoxide, with regards to resistance to drugs and insecticides.
Experimental investigation of corrosion-induced cracking, spalling and delamination of bridge decks
Creators: name: Medlej, Adel
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Engineering, Civil.

description: Corrosion of the steel rebar is one of the major deterioration mechanisms of reinforced concrete structures. The build-up of corrosion products around the reinforcing steel induces tensile stresses in the surrounding concrete, leading to cracking of the concrete cover when its tensile resistance is exceeded. Corrosion-induced failure mechanisms of the concrete cover that have been observed in the field are longitudinal cracking (parallel to the direction of reinforcement), spalling and delamination. Previous research efforts have lead to the development of analytical and finite element models to simulate the damage induced in the concrete cover by the growth of corrosion products. These models have distinguished different failure mechanisms in reinforced concrete bridge decks by developing relationships between the cover-to-rebar diameter ratio c/d and spacing-to-rebar diameter ratio s/d. Although corrosion-induced cracking is a widespread problem in concrete infrastructure suffering from reinforcing steel corrosion, there is not much experimental or field data available to verify these models. The objective of this research is to validate those relationships experimentally through accelerated corrosion laboratory tests. Nine reinforced concrete specimens with different geometrical dimensions and reinforcing steel arrangements were tested. These specimens have been designed to obtain different corrosion-induced failure patterns as estimated by previous finite element modelling. Corrosion of the reinforcing steel was induced by means of a potentiostat PGSTAT100 with a corrosion current density varying between 150 to 200 muA/cm2 and held constant for a period that varied between two to three weeks. A comparison and analysis of the obtained results were done against results obtained from a finite element model. Due to differences observed in the comparison, a modification was applied on the previous numerical equations in order to better present the different modes of corrosion-induced failure of reinforced concrete bridge decks.
The effects of food deprivation and weight loss on food hedonics and the relative-reinforcing value of food
Creators: name: Cameron, Jameason
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Health Sciences, Nutrition.
subject: Health Sciences, Recreation.
subject: Biology, Physiology.

description: Food is a primary reinforcer. There is strong evidence that when animals are chronically deprived of calories, the reward of a food stimulus becomes more salient. Recently leptin has been implicated in food reward. Typically the rewarding value of food is separated into the "liking" or pleasure/palatability component generated by the stimulus, and into the "wanting" or appetitive/incentive component. The goal of this current study was examine whether plasma leptin concentrations were related to food hedonics and food reinforcement in humans and to investigate the effect of food deprivation on these variables. Fourteen apparently healthy obese adults (n=9 women and 5 men; age=33.5+/-7.8) with BMI (kg/m2) between 30-45 were subjected to 8 weeks of caloric deprivation (-700kcal/day). Plasma leptin (ELISA), body weight and composition (DEXA), food reinforcement and food hedonics were measured pre- and post-intervention. Post weight loss palatability was rated significantly higher for the food reinforcers than that measured pre weight loss (p<0.01). No significant effect of the chronic food deprivation was noted for the reinforcing value of food. A significant negative correlation was observed between changes in palatability and those in body weight expressed as relative changes (r=-.62; p<0.05). No significant correlations were noted between changes in leptin and those in palatability or the reinforcing value of food. However, in a subgroup that lost the greatest percent of initial body weight (7-8%), food was more reinforcing post intervention (p<0.05). These findings demonstrate that chronic caloric deprivation can increase the subjectively rated palatability of preferred food items. The subgroup may be a caveat illustrating that a greater relative weight loss can lead to food becoming more rewarding.
De la guerre Nintendo au retour du soldat-héros: Une étude comparative de l'image médiatique des deux guerres du Golfe
Creators: name: Tanguay, Mélanie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Journalism.
subject: Political Science, General.

description: Cette thèse a pour but de vérifier si la différence dans l'utilisation de techniques de contrôle de l'information entre le système des "pools" de la première guerre du Golfe et le système d'intégration de la seconde guerre du Golfe a entraîné une rhétorique de l'image différente pour chaque conflit. Il convient de préciser que par rhétorique de l'image, nous entendons faire ici référence à la notion de connotation de l'image, soit à la façon dont les codes et les signes sont agencés afin de créer un point de vue. Afin d'exécuter cette vérification, nous avons eu recours aux photographies publiées à l'intérieur de trois magazines d'actualité américains (le Time, le Newsweek et le US news and world report) entre le 28 janvier 1991 et le 11 mars 1991 et entre le 31 mars 2003 et le 21 avril 2003. Nous avons ensuite soumis ce corpus à une analyse quantitative, dans le but d'y faire ressortir de grandes tendances, et puis, à une analyse qualitative, question d'y étudier plus en profondeur la connotation. Ces deux analyses nous alors ont permis d'en arriver à la conclusion suivante: l'utilisation de différentes techniques de contrôle de l'information lors de la première et de la deuxième guerre du Golfe a bel et bien entraîné la création d'une rhétorique de l'image différente pour chaque conflit. Néanmoins, sous l'influence de l'industrie médiatique et du consensus sociétal quant à ce que doit "être" la guerre, ces deux rhétoriques s'inscrivent à l'intérieur d'un canevas sensiblement identique.
Variable-step variable-order 3-stage Hermite-Birkhoff ODEDDE solver of order 5 to 15
Creators: name: Yagoub, Hemza
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Mathematics.

description: This thesis presents the variable-step variable-order 3-stage Hermite-Birkhoff numerical solver HB515DDE of order 5 to 15. This method can solve ordinary and delay differential equations (ODEs/DDEs) with state-dependent, non-vanishing, small, vanishing and asymptotically vanishing delays. Delayed values are computed using Hermite interpolation and small delays are dealt with using extrapolation. Discontinuities in DDEs are located by a bisection method. HB515DDE was tested and compared with other solvers. The results are given along with the convergence theory which supports the experimentation.
Relating trophic structure to mercury distribution in a Gulf of St Lawrence food web: From zooplankton to colonial seabirds using stable nitrogen and carbon isotope analysis
Creators: name: Lavoie, Raphael A
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2009
Subjects: subject: Health Sciences, Toxicology.

description: Even at very low concentrations in the environment, mercury (Hg) has the potential to biomagnify in food chains reaching levels of concern in apex predators such as fish-eating seabirds. The aim of this study was to determine the trophic structure and the transfer of total mercury (THg) and methylmercury (MeHg) in a Gulf of St. Lawrence food web using stable nitrogen (delta 15N) and carbon (delta13C) isotope analysis. Since food is the main exposure route to Hg in organisms, I wanted to characterize and compare the diet of top level predator seabirds using traditional and novel techniques. I found that body weight, trophic level and lipid content of organisms were the best predictors of THg and MeHg in this food web. Although the influence of habitat on the overall Hg distribution in the food web was low, I was able to demonstrate an effect within taxonomical groups which indicates that sediments are a source of THg and MeHg in this ecosystem. Several organisms at the base of the food chain were above the MeHg threshold level for the protection of wildlife suggesting a potential threat for upper trophic level predators. Diet composition of seabirds determined using traditional and novel techniques led to similar and complementary results illustrating that these methods can be combined for future studies to monitor prey availability and to predict the exposure of consumers to Hg.
Can we sustain success in reducing deaths to extreme weather in a hotter world?
Creators: name: Mehrabi, Zia
name: Donner, Simon D. (Simon David)
name: Rios, Patricia
name: Guha-Sapir, Debarati
name: Rowhani, Pedram
name: Kandlikar, Milind
name: Ramankutty, Navin
Publisher: name: The University of British Columbia
Year: 2021

description: In an incredible story of human adaptation, the aggregate global risk of mortality to extreme weather declined by over two orders of magnitude over the past century. Yet the data show that large losses of lives to extreme weather disasters persist in nations typified by poor economic development, weak institutions, and political instability. And currently we are seeing spikes in mortality from extreme heat events in rich nations, including a wave of new reported deaths in Japan, Europe, and Canada during 2018. These events and future projections of increasing exposure suggest that we need to revisit adaptation strategies to deal with the adverse effects of extreme weather disasters across the world.
Metal-solvated carbothermal production of aluminium
Creators: name: Nagle, Michael W.
name: Rajakumar, V.
Publisher: name: Swinburne
Year: 2024

description: Commercial aluminium production by electrolysis of alumina dissolved in cryolite is carried out in Hall-Héroult cells. Several attempts have been made by other investigators to develop alternate routes that are more intense and reduce pollutants [1-4]. At CSIRO Process Science and Engineering, a program investigated the carbothermal reduction of alumina. An experimental study was conducted at the kilogram-scale in a reactor designed to operate up to 2000°C and down to about 10 kPa. Experiments employed a bed of C-Al2O3 pellets contacting a bath containing tin or copper as a solvent metal. The experiments confirmed the feasibility of smelting alumina with high recoveries of aluminium metal to an alloy at temperatures as low as 1750°C and furnace pressures up to about 45 kPa. A key finding was that the method of contacting the charge with the solvent had a significant influence on the extent of undesirable side reactions and loss of aluminium to the gas. The reaction rate was increased with higher temperature, lower reactor pressure and lower concentration of aluminium in the alloy. The amount of aluminium lost to the fume decreased at lower temperatures and higher pressures. Losses were lower with copper than with tin as the solvent.
Supplementary document for Spectral engineering of ultrathin germanium solar cells for combined photovoltaic and photosynthesis - 4975908.pdf
Creators: name: Osterthun, Norbert
name: Neugebohrn, Nils
name: Gehrke, Kai
name: Vehse, Martin
name: Agert, Carsten
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Additional information
Omalizumab in patients with severe asthma and persistent sputum eosinophilia
Creators: name: Mukherjee, Manali
name: Kjarsgaard, Melanie
name: Radford, Katherine
name: Huang, Chynna
name: Leigh, Richard
name: Dorscheid, Delbert R
name: Lemiere, Catherine
name: Boulet, Louis-Philippe
name: Waserman, Susan
name: Martin, James
name: Nair, Parameswaran
Publisher: name: BioMed Central
Year: 2019

description: Omalizumab, a recombinant humanized monoclonal antibody targeting the IgE molecule, is the first biologic approved for moderate-to-severe allergic asthmatics, who remain uncontrolled despite high dose inhaled corticosteroid and bronchodilators. Steroid-sparing effect of omalizumab has not been demonstrated in asthmatics with persistent airway eosinophilia in a randomised controlled trial till date. From this double-blind, placebo-controlled, multi-centred, randomized parallel group design, we report that omalizumab is possibly inadequate to control sputum eosinophilia, and therefore may not have a steroid-sparing effect, especially in those maintained on oral corticosteroids daily. This needs to be confirmed or refuted in a larger trial, which may be a challenge with respect to recruitment, since there are currently three additional biologics available to prescribe. Trial registration Clinicaltrials.gov, NCT02049294, Registered 30th January 2014, https://clinicaltrials.gov/ct2/show/NCT02049294
Supplementary document for Spectral engineering of ultrathin germanium solar cells for combined photovoltaic and photosynthesis - 4975908.pdf
Creators: name: Osterthun, Norbert
name: Neugebohrn, Nils
name: Gehrke, Kai
name: Vehse, Martin
name: Agert, Carsten
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Additional information
Beyond individual expression: working with cultural institutions
Creators: name: Watkins, Jerry
name: Russo, Angelina
Publisher: name: Swinburne
Year: 2024

description: The digital storytelling genre originated by the Center for Digital Storytelling trains citizens to create their own story, in their own voice, without interference from media professionals. We suggest that the genre is a reactive â- rather than interactive â- medium whose strength lies in its prescriptive format. This format provides a method and tools to support the individual creative process. However, this emphasis on individual expression may limit the sustainability of the genre. Using examples of community co-creation and distribution projects, we argue that a strategic teambased approach to participatory content creation may provide a more sustainable approach for communities and organisations engaged in this kind of collaboration.
Zentrum für Wasser- und Chemikalienforschung Berlin-Marienfelde
Creators: name: Chorus, Ingrid
name: Rechenberg, Bettina
name: Eisenträger, Adolf
Publisher: name: My University
Year: 2014
Subjects: subject: Umweltbundesamt
subject: Wasserforschung
subject: Chemikalienforschung
subject: Das UBA
subject: The UBA
subject: Chemikalien
subject: Wasser
subject: Chemicals
subject: Water

description: Auf dem Versuchsfeld des Umweltbundesamtes (⁠UBA⁠) in Berlin-Marienfelde wird die komplexe Realität wesentlicher Komponenten des Wasserkreislaufs abgebildet. Das erlaubt eine Beherrschung der Bedingungen sowie eine definierte Dosierung der zu untersuchenden Stoffe oder Mikroorganismen und damit eine bessere Bilanzierung ihres Verbleibs. Die Technik bildet die Brücke zwischen Laborexperiment und Freilandversuchen. Die Verknüpfung zwischen den technischen Einrichtungen und der Ressortforschung mit dem Hauptziel der Politikberatung stellt ein Alleinstellungsmerkmal des Umweltbundesamtes dar.Zu den Technika des UBA gehören:die Fließ- und Stillgewässer-Simulationsanlage (⁠FSA⁠)die Simulationsanlagen für Ufer- und Langsam- sandfiltration (SIMULAF) im Aquiferdie Lysimeteranlage zur Simulation der Boden- passageder Teststand zur Wirksamkeitsprüfung von Trinkwasser-DesinfektionsverfahrenAnschluss zur Gewinnung von Rohabwasser aus dem Berliner Kanalnetz.