cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A theoretical study of radio frequency ablation of the myocardium.
Creators: name: Labonté, Sylvain.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1992
Subjects: subject: Engineering, Biomedical.

description: Theoretical modeling of the lesion formation process during radio-frequency ablation of the myocardium is presented. The model is axisymmetric and consists of a catheter electrode coming in contact at right angle with the heart tissue. The electric power dissipated in the tissue is calculated and from it the temperature distribution and the resulting lesion are evaluated as a function of time. The cooling effect of the blood flow and the temperature dependence of the electrical conductivity are included in the model, making it non-linear. The finite-element method is used to discretize the spatial domain and a finite-difference algorithm resolves the time dependence. The numerical simulator is validated with a series of experiments performed on a tissue-equivalent material. Both the measured temperature distribution in the tissue sample and the electrode resistance as a function of time agree well with the theoretical predictions. The model is used to study the effect of the electrode geometry and the electrical excitation on the resulting lesion. Theoretical predictions for the time evolution of the lesion size and the electrode resistance are presented for the first time. Recommendations for the improvement of the RF ablation procedure are formulated.
Estimation of clamp force in brake-by-wire systems: a step-by-step identification approach
Creators: name: Hoseinnezhad, Reza
name: Saric, Stephen
name: Bab-Hadiashar, Alireza
Publisher: name: Swinburne
Year: 2024

description: Elimination of a clamp force sensor from brake-by-wire system designs is strongly demanded due to implementation difficulties and cost issues. In this paper a new method is presented to estimate clamp force using the motor angular position of the actuator that can be sensed by an internal resolver. The estimator is a dynamic nonlinear model that is derived from a system identification approach where frequency domain analysis is merged with nonlinear compensation. The designed estimator is able to accurately track a wide range of sinusoidal, ramp and random clamp force signals. It is particularly tolerable to high-speed cases as demanded by ABS controls. This paper is concluded with further investigation detailed that is necessary to ensure a robust clamp force estimator is developed.
Negative sliding sign during dynamic ultrasonography predicts low endometriosis fertility index at laparoscopy
Creators: name: Alfaraj, Sukainah
name: Noga, Heather
name: Allaire, Catherine
name: Williams, Christina
name: Lisonkova, Sarka
name: Yong, Paul J.
name: Bedaiwy, Mohamed A.
Publisher: name: Elsevier Inc.
Year: 2021

description: Endometriosis fertility index (EFI) is a robust tool to predict pregnancy rate in endometriosis patients who are attempting non-in vitro fertilization conception. However, EFI calculation requires laparoscopy. Newly established imaging techniques such as sliding sign, that is used to diagnose Pouch of Douglas obliteration, could provide a promising alternative. The objective of this study is to investigate the practicality of using ultrasound data to predict low EFI (score ≤6).
City gold - building material storage with a future
Creators: name: Knappe, Florian
name: Muchow, Nadine
name: Reinhardt, Joachim
Publisher: name: Umweltbundesamt
Year: 2022
Subjects: subject: Recycling
subject: Urban Mining
subject: Stoffstrommanagement
subject: Secondary materials
subject: Anthropogenic stock
subject: material flow management
subject: Waste | Resources

description: The project "KartAL III - Mapping of the Anthropogenic Stock III", commissioned by the Federal Environment Agency, focuses on the recovery options and expected material flows of nine mineral building materials. In order to significantly improve the circular economy through urban mining in Germany, the potentials, approaches and success factors of relevant stakeholders identified in the project were compiled in a guide. Quelle: www.umweltbundesamt.de
description: The project "KartAL III - Mapping of the Anthropogenic Stock III", commissioned by the Federal Environment Agency, focuses on the recovery options and expected material flows of nine mineral building materials. In order to significantly improve the circular economy through urban mining in Germany, the potentials, approaches and success factors of relevant stakeholders identified in the project were compiled in a guide.
Fusion of redundant information in brake-by-wire systems using a fuzzy voter
Creators: name: Hoseinnezhad, Reza
name: Bab-Hadiashar, Alireza
Publisher: name: Swinburne
Year: 2024

description: In safety critical systems such as brake-by-wire, fault tolerance is usually provided by virtue of having redundant sensors and processing hardware. The redundant information provided by such components should be properly fused to achieve a reliable estimate of the safety critical variable that is sensed or processed by the redundant sensors or hardware. Voting methods are well-known solutions for this category of fusion problems. In this paper, a new voting method, using a fuzzy system for decision-making, is presented. The voted output of the proposed scheme is a weighted average of the sensors signals where the weights are calculated based on the antecedents and consequences of some fuzzy rules in a rulebase. In a case study, we have tested the fuzzy voter along with the well-known majority voting method for a by-wire brake pedal that is equipped with a displacement sensor and two force sensors. Our experimental results show that the performance of the proposed voting method is desirable in the presence of short circuits to ground or supply, excessive noise and sensor drifts. Voting error (in terms of mean square error) is reduced by 82% by the proposed fuzzy voting method, compared to majority voting.
Gender aspects by using start-up simulations for entrepreneurship education: results of theory-based evaluation studies
Creators: name: Auchter, Eberhard
name: Kriz, Willy
Publisher: name: Swinburne
Year: 2024

description: Since 2005 we have been carrying out several studies in the area of entrepreneurship education with business games that simulate start- up business processes. One part of the studies is to research the learning effects of university students in Germany, enrolled in regular courses involving start-up simulations. In these simulation courses the entire process of starting a new venture is simulated. Another important part of our studies is the evaluation of entrepreneurship education in the nationwide German competition 'exist-priMEcup'. Both activities (regular courses and voluntary competition cup) share the common goals of fostering entrepreneurial competencies and influencing the intention of participants to start up their own company. The same start-up business simulations are used and the same research methodology is applied in both programs. We put into practice the theory based evaluation approach. The evaluation of the business simulations should have a logic model as its starting point. That logic model provides a framework for the interpretation of what takes place during the entrepreneurship business simulations. Apart from other results, significant differences due to gender aspects have been identified. These aspects and two new studies (one of them currently still carrying out) to examine these gender differences are the issue of this paper.
Supplementary document for Skin effect photon-trapping enhancement in infrared photodiodes - 5311119.pdf
Creators: name: Hu, Wei-Da
name: Ge, Haonan
name: Xie, Runzhang
name: Chen, YunFeng
name: Wang, Peng
name: Li, Qing
name: Gu, Yue
name: Guo, Jia
name: He, Jiale
name: Wang, Fang
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement data
title: MS Department of Marine Resources Railroad Corner Beneficial Use Site
titleType: AlternativeTitle
title: Endangered Species Act - Section 7 Consultation Biological Opinion SAM-2022-00620-KMN, Mississippi Department of Marine Resources, Railroad Corner Beneficial Use Site, Mississippi Sound, Pascagoula, Jackson County, Mississippi
Creators: name: United States. National Marine Fisheries Service. Southeast Region
Publisher: name: United States. National Marine Fisheries Service. Southeast Region
Year: 2025

description: SERO-2023-00793
The Effects of HIV on the Regulation of IL-12 Family Cytokines, IL-12, IL-23, and IL-27 Production in Human Monocyte-derived Macrophages
Creators: name: O'Hara, Shifawn R.K.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: HIV
monocyte
macrophage
cytokine
IL-23
IL-27
IL-12
LPS
signalling
PI3K
p38 MAPK
JNK MAPK
ERK MAPK
PKC

description: IL-12 family cytokines IL-23 and IL-27 play an important role linking innate and adaptive immunity, and regulating T-cell responses. The production of IL-12, a structurally similar cytokine, is decreased in chronic HIV infection; therefore IL-23 and IL-27 may also be influenced by HIV infection. I hypothesized that HIV inhibits LPS-induced IL-23 and IL-27 production in human MDMs by suppressing the activation of signalling pathways regulating their expression. In vitro HIV-infection of MDMs did not have any effect on basal secretion of IL-23 or IL-27; however, HIV inhibited LPS-induced production of IL-12/23 p40 and IL-23 p19, and IL-27 EBI3 and IL-27 p28 mRNA expression, and IL-23, IL-12/23 p40 and IL-27 secretion. In order to evaluate the molecular mechanisms by which HIV inhibits IL-23 and IL-27 in LPS-stimulated MDMs, the signalling pathways regulating their expression were evaluated. The PI3K, p38 MAPK, and JNK MAPK pathways were found to positively regulate LPS-induced IL-27 secretion. Interestingly, in vitro HIV infection inhibited LPS-induced p38 and JNK MAPK activation in MDMs. In summary, I have shown that HIV inhibits IL-23 and IL-27 production in LPS-stimulated MDMs and that HIV may inhibit LPS-induced IL-27 production through the inhibition of p38 and JNK MAPK activation. It is currently unknown whether PKCs regulate LPS-induced IL-23 or IL-27 in human monocytes/macrophages. I demonstrated that classical PKCs differentially regulate LPS-induced IL-23 and IL-27 secretion within THP-1 cells, primary monocytes, and MDMs. Classical PKCs were found to positively regulate LPS-induced IL-12/23 p40 and IL-27 p28 mRNA expression and IL-12/23 p40, IL-23, and IL-27 secretion in primary human monocytes. Similarly, the classical PKCs were found to positively regulate IL-27 p28 mRNA expression and IL-27 secretion in THP-1 cells. However, classical PKCs did not regulate LPS-induced IL-27 production in MDMs, or LPS-induced IL-23 production in THP-1 cells. Overall, this demonstrates that classical PKCs differentially regulate LPS-induced IL-23 and IL-27 production in different myeloid cells.
Observation-based dissipation and input terms for WAVEWATCH III TM: implementation and simple simulations
Creators: name: Zieger, Stefan
name: Babanin, Alexander
name: Rogersy, W. Erick
name: Young, Ian R.
Publisher: name: Swinburne
Year: 2024

description: Observational data collected at Lake George, Australia resulted in new insights on the processes of wind wave interaction and white-capping dissipation and consequently new parameterisations of these source terms. The new wind input source term (Donelan et al., 2006; Babanin et al., 2007a) accounts for the dependence of growth increment on wave steepness, and on airflow separation with relative reduction of the growth under extreme wind conditions. The new white-capping dissipation source term (Babanin and Young, 2005; Young and Babanin, 2006) consists of two terms, the inherent breaking term and dissipation induced by longer waves. The present implementation follows Rogers et al. (submitted). Two novel parameterisations are validated against existing source terms and buoy measurements for windsea-dominated conditions in duration-limited simulations and hindcast.
Quintessence and false vacuum: Two sides of the same coin?
Creators: name: V., Pradosh Keshav M.
name: Kenath, Arun
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study late-time acceleration scenarios using a quintessence field initially trapped in a metastable false vacuum state. The false vacuum has non-zero vacuum energy and could drive exponential expansion if not coupled with gravity. Upon decay of the false vacuum, the quintessence field is released and begins to evolve. We assumed conditions where the effective scalar potential gradient must satisfy \(\nabla V_{\text{eff}} > A\), characterized by a pressure term approximately \(Δp / p > \mathcal {O} (\hbar)\) invoking the recently proposed string swampland criteria. We then derived the effective potential of the scalar with an upper bound on the coupling constant \(λ< 0.6\). Further analysis revealed that \(V_{\text{eff}}\) shows a slow-roll behavior for \(0.1 > λ> -0.04\) in the effective dark energy equation of state (EoS) \(-0.8 < w_0 < -0.4\), stabilizing at points between \(1 < A < 2.718\). Our results suggest a stable scalar decoupled from its initial meta-stable state, could indeed lead to a more stable universe at late times. However, slight deviations in parameter orders could potentially violate the swampland criteria if \(V_{\text{eff}}\) grows too rapidly. Since this is not something we expect, it opens up the possibility that the current dark energy configuration might be a result of a slowly varying scalar rather than being arbitrary. \
description: 18 pages, 6 figures
Ignoring a Silent Killer: Obesity & Food Security in the Caribbean (Case Study: Barbados)
Creators: name: MacDonald, Tara
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Obesity
Diabetes
Nutrition
Gender
Health
Epidemic
Food
Food Security
Food Insecurity
Nutrition Security
Nutrition Insecurity
Chronic Non Communicable Diseases
Non Communicable Diseases
Overweight
NCD
CNCD
Caribbean
Barbados
Afro-Caribbean
Nutrition Transition
Post Colonial
Slavery
Agriculture
Import
Food Import
Tara MacDonald
Garden Based Learning
GBL
Millennium Development Goals
MDGs
Diseases of Affluence
Type 2 Diabetes

description: Obesity and obesity-related diseases – such as type 2 diabetes – have become the most crucial indicators of population health in the 21st century. Formerly understood as ‘diseases of affluence’, obesity is now prevalent in the Global South posing serious risk to socioeconomic development. This is particularly true for rapidly developing countries where nutrition transitions are most apparent. There are many factors which impact on risk of obesity (e.g. gender, culture, environment, socioeconomic status, biological determinants). The problem is further aggravated within small island developing states where food security is exacerbated by factors associated with globalization and development. The thesis examines the surge of obesity and type 2 diabetes within Caribbean populations, using Barbados as a case study. A holistic approach was applied using an ecological health model. Moving away from the lifestyle model, the theoretical framework underpinning included sub-theories (e.g. social constructivism, feminism, post-colonial theory, concepts of memory and trauma).
The Biodistribution of 14C in the Digestive Organs of Rats Fed [14C]CD14 Protein
Creators: name: Davis, Laura D. R.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: human milk
carbon 14
sprague dawley
biodistribution
gastrointestinal tract
pharmacokinetic
inflammation
CD14
neonate

description: Human milk contains ~ 25 µg/mL of soluble cluster of differentiation 14 (sCD14) protein, a pattern recognition receptor (PRR) that triggers the innate immune system to respond to bacterial lipopolysaccharide (LPS). To date, the role of CD14 in the digestive tract of breast fed infants has not been well characterized and is the subject of this thesis. To investigate the biodistribution of proteins such as CD14 in vivo, a novel method for 14C radiolabeling of proteins to high specific radioactivity was developed using in vacuo methylation. Bovine serum albumin (BSA) and casein were used as test proteins to determine the following: 1) The efficacy of the in vacuo radiolabeling procedure; 2) The extent of incorporation of the 14C-label into the organs of oro-gastric gavaged 10 day old Sprague Dawley rats. [14C]BSA, [14C]casein and [14C]CD14 were prepared with specific radioactivities of 10 400, 10 800 and 163 000 dpm/µg, respectively. After feeding 6.25 µg of 14C-labeled proteins, quantifiable levels of 14C were found in the stomach, jejunum, duodenum, ileum, large intestine, intestinal luminal flushes, blood, liver, spleen and kidneys of rats. The accumulation of radiolabel in the organs of [14C]CD14 fed rats was temporally and spatially distinct from [14C]BSA and [14C]casein. Most notably, the label persisted in the stomach 480 min post-gavage. To design a neonate animal model for biodistribution, the segmental and total gastrointestinal transit times (GItt) were measured in two litters of 10 and 15 day old Sprague Dawley rat pups using barium sulfate. Ten day old rat pups that remained with and without the dam had a total gastrointestinal transit time of 13.8 ± 0.9 hr and 9.3 ± 0.7 hr, respectively. This decrease (p<0.05) in total gastrointestinal transit time in the absence of the dam was age dependent, as it was not observed (p>0.05) in the 15 day old rat pup litter. The immunological impact of an exogenous sCD14 source was examined in human peripheral blood mononuclear cells (PBMC). Pre-treatment of CD14+ monocytes with sCD14 had a protective effect, one of reducing the production of proinflammatory cytokines (TNF-α, IL-6, IL-8, IL-1β) when challenged with LPS. 14C was absorbed by neonate rats upon ingestion of [14C]CD14 and exposure to relatively high concentrations of rCD14 led to a reduction in inflammation. This may be beneficial to initial gut colonization in breast-fed newborns.
description: Alexander Graham Bell NSERC CGS M scholarship. Japan Society for the Promotion of Sciences, Summer in Japan Fellowship. Funded by the Canadian Institutes of Health Research, Institute of Nutrition Metabolism and Diabetes Grant #82816 “Fate and function of breast milk and recombinant human CD14 at mammary and newborn gastrointestinal mucosal epithelia”.
Risk factors for postpartum sepsis: a nested case-control study
Creators: name: Bakhtawar, Samina
name: Sheikh, Sana
name: Qureshi, Rahat
name: Hoodbhoy, Zahra
name: Payne, Beth
name: Azam, Iqbal
name: Von Dadelszen, Peter
name: Magee, Laura
Publisher: name: BioMed Central
Year: 2020

description: Background: The Majority (99%) of maternal deaths occur in low and middle-income countries. The three most important causes of maternal deaths in these regions are postpartum hemorrhage, pre-eclampsia and puerperal sepsis. There are several diagnostic criteria used to identify sepsis and one of the commonly used criteria is systematic inflammatory response syndrome (SIRS). However, these criteria require laboratory investigations that may not be feasible in resource-constrained settings. Therefore, this study aimed to develop a model based on risk factors and clinical signs and symptoms that can identify sepsis early among postpartum women. Methods: A case-control study was nested in an ongoing cohort of 4000 postpartum women who delivered or were admitted to the study hospital. According to standard criteria of SIRS, 100 women with sepsis (cases) and 498 women without sepsis (controls) were recruited from January to July 2017. Information related to the socio-demographic status, antenatal care and use of tobacco were obtained via interview while pregnancy and delivery related information, comorbid and clinical sign and symptoms were retrieved from the ongoing cohort. Multivariable logistic regression was performed and discriminative performance of the model was assessed using area under the curve (AUC) of the receiver operating characteristic (ROC). Results: Multivariable analysis revealed that 1–4 antenatal visits (95% CI 0.01–0.62). , 3 or more vaginal examinations (95% CI 1.21–3.65), home delivery (95% CI 1.72–50.02), preterm delivery, diabetes in pregnancy (95% CI 1.93–20.23), lower abdominal pain (95% CI 1.15–3.42)) vaginal discharge (95% CI 2.97–20.21), SpO2 < 93% (95% CI 4.80–37.10) and blood glucose were significantly associated with sepsis. AUC was 0.84 (95% C.I 0.80–0.89) which indicated that risk factors and clinical sign and symptoms-based model has adequate ability to discriminate women with and without sepsis. Conclusion: This study developed a non-invasive tool that can identify postpartum women with sepsis as accurately as SIRS criteria with good discriminative ability. Once validated, this tool has the potential to be scaled up for community use by frontline health care workers.
Chicken Eggshell Membrane and Cuticle: Insight from Bioinformatics and Proteomics
Creators: name: Du, Jingwen
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: eggshell cuticle
eggshell membrane
similar to spore coat protein SP75
Collagens
proteomics
bioinformatics

description: The chicken eggshell possesses physical and chemical barriers to protect the embryo from pathogens. The avian eggshell cuticle is the outmost layer of the eggshell whose protein constituents remain largely unknown. Since eggs with incomplete or absent cuticle are more susceptible to bacterial contamination, we hypothesize that cuticle protein components play an important role in microbial resistance. In our study, at least 47 proteins were identified by LC/MS/MS in the non-calcified cuticle layer. Similar to Kunitz-like protease inhibitor (also annotated as ovocalyxin-25, OCX-25) and ovocalyxin-32 (OCX-32) were two of most abundant proteins of the cuticle proteins. Some proteins that have antimicrobial activity were also detected in the proteomic results, such as lysozyme C, ovotransferrin, ovocalyxin-32, cystatin, ovoinhibitor. This study represents the first comprehensive report of the cuticle proteome. Since the sequence similarity of the kunitz motif in OCX-25 is similar to that of BPTI, it is predicted that it will have the same trypsin inhibitory and antimicrobial activity against Gram-positive and/or Gram-negative bacteria. In order to test the antimicrobial property and trypsin inhibitor activity of OCX-25, cuticle proteins were extracted by 1N HCl. Antimicrobial activity was monitored using the Bioscreen C instrument; and antimicrobial activity was identified primarily against Staphylococcus aureus. Trypsin inhibitor activity was studied by using a specific trypsin assay, and the assay indicated that the cuticle proteins could inhibit the reaction of trypsin and substrate. Therefore, the current research has provided some insight into the antimicrobial and enzymatic aspects of the cuticle proteins, and its function for egg protection. Eggshell membranes are another important component of the chicken eggshell.Due to its insoluble and stable properties, there are still many questions regarding formation and constituents of the eggshell membranes. The purpose of our study was to identify eggshell membrane proteins, particularly these responsible for its structural features, by examining the transcriptome of the white isthmus during its formation. Bioinformatics tools were applied to analyze the differentially expressed genes as well as their encoded proteins. Some interesting proteins were encoded by the over-expressed genes in the white isthmus during the formation of eggshell membranes, such as Collagen X, and similar to spore coat protein SP75. These proteins may have potential applications. Our study provides a detailed description of the chicken white isthmus transcriptome during formation of the eggshell membranes; it could lead to develop the strategies to improve food safety of the table egg.
The thermal decomposition of cyclobutanecarboxaldehyde p-tosylhydrazone, and, The reaction of silver tetrafluoroborate with organic chlorides.
Creators: name: Kwok, Peter W. N.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1966
Subjects: subject: Chemistry, Organic.

description: Part I. Aldehyde and ketone p-tosylhydrazones react thermally with bases in aprotic solvents to give diazo-compounds which decompose by carbenic processes. In proton-donor solvents decomposition appears to occur primarily by cationic mechanisms involving diazonium and/or carbonium ion intermediates. Thermal decomposition of cyclobutanecarboxaldehyde p-tosyl-hydrazone gives methylenecyclobutane by hydrogen migration, cyclopentene by ring expansion, bicyclo(2.1.0)pentane by intramolecular insertion, 2-methylbutene-1 by reorganization, methylcyclobutane by hydride transfer, along with ethylene and acetylene by fragmentation. The effect of varying solvents and bases on the product compositions is reported. A brief historical review is given and the mechanisms of this reaction are discussed. Part II. A new method for the preparation of organic fluoro-compounds was discovered. Reaction of cholesteryl chloride with silver tetrafluoroborate in monoglyme gave good yields of cholesteryl fluoride and cholesta-3,5-diene. In a similar way, 4-chloromethylfluorenone gave the corresponding fluoride as a principal product.
Performance effects of two-way FAST TCP
Creators: name: Ge, Fei
name: Chan, Sammy
name: Andrew, Lachlan L. H.
name: Li, Fan
name: Tan, Liansheng
name: Zukerman, Moshe
Publisher: name: Swinburne
Year: 2024

description: In this paper we study the performance of delay-based congestion control in the presence of queueing in the reverse path. Specifically, we consider FAST TCP in a single-bottleneck network by considering two scenarios, each corresponding to an equilibrium where a different direction of the bottleneck link is saturated. We argue that the local stability properties of FAST are unchanged by reverse traffic, and present expressions for the throughput of each flow and link. Finally, we consider the effect of bidirectional traffic on the dynamics of the number of flows in the network. We find conditions on the traffic loads under which the bottleneck shifts between the forward and reverse links, and conditions under which a given direction is always the bottleneck.
Le rapport à l'écrit en français et en anglais d'étudiants francophones universitaires issus d'un milieu francophone minoritaire
Creators: name: Murray, Brigitte
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2016
Subjects: Rapport à l'écrit
Lecture
Écriture
Écrit
Bilinguisme
Français
Anglais
Sécurité linguistique
Insécurité linguistique
Postsecondaire
Universitaire
Enseignement
Apprentissage
Postsecondary
Learning
Teaching
Bilinguism
Linguistic Security
Linguistic Insecurity
French
English
Written
Read
French as first language
French as second language
English as first language
English as second language
University
Relation to read and written word
milieu francophone minoritaire
French minority context

description: Il est bien documenté que les élèves de l’élémentaire et du secondaire évoluant en milieu francophone minoritaire éprouvent plus de difficultés à apprendre à écrire en français que les élèves vivant en milieu francophone majoritaire. Ce constat a également été établi pour le postsecondaire. Ces difficultés d’apprentissage pourraient être attribuables à certains aspects de leur rapport à l’écrit, soit de la relation qu’ils entretiennent avec les écrits (les documents lus et écrits) ainsi qu’avec leurs processus. Nous nous sommes intéressée au rapport à l’écrit d’étudiants francophones universitaires issus d’un milieu francophone minoritaire canadien. Nous avons posé chaque question non seulement pour le français, mais également pour l’anglais parce que ces derniers sont exposés régulièrement à ces deux langues. Par ailleurs, il est opportun de connaître les caractéristiques du rapport à l’écrit de cette population étudiante parce qu’elles peuvent différer de celles présentes chez des francophones issus d’un milieu francophone majoritaire. Pour recueillir nos données, nous avons demandé à des étudiants francophones qui font des études de baccalauréat en français dans une université bilingue de l’est de l’Ontario de remplir un questionnaire écrit et de participer à un entretien individuel semi dirigé. Nous avons cherché à décrire le rapport à l’écrit à la fois en français et en anglais, et ce, dans une perspective de groupe et dans une perspective individuelle. Les résultats ont montré des caractéristiques semblables et différentes quant aux représentations, aux sentiments, aux émotions, aux pratiques et aux types d’investissement, et ce, autant pour le français que pour l’anglais. En outre, tous les participants reconnaissent que leur bilinguisme français anglais leur procure un grand nombre d’avantages. Cette étude revêt un caractère unique parce qu’elle porte sur le rapport à l’écrit à la fois en français et en anglais des participants et qu’elle contribue à une meilleure connaissance des facteurs qui se révèlent être favorables ou défavorables au développement des compétences rédactionnelles en français des étudiants francophones universitaires issus d’un milieu francophone minoritaire canadien.
CLEWs modelling the impact of increasing tree cover in Kenya
Creators: name: MUTURI, FESTUS
name: OKWARO, JOHN OKANDA
Publisher: name: Zenodo
Year: 2024

description: This presentation describes a CLEWs model for Kenya, analysing the effect of the government policy on increasing tree cover by 30% by 2032 on food security. The results shows that increasing tree cover to the target value by 2032 will result to food insecurity. The study recommends improvement inm agricultural technology and utilization of other land use areas for tree cover and agriculture.
Supplementary document for Switchable imaging between edge-enhanced and bright-field based on a phase-change metasurface - 5311433.pdf
Creators: name: Yang, Hui
name: Xie, Zhenwei
name: He, Hairong
name: Zhang, Qiang
name: li, jiahao
name: Zhang, Yilin
name: Yuan, Xiaocong
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplementary Materials
Norway House: Economic Opportunity and the Rise of Community, 1825-1844.
Creators: name: McKillip, James D.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: fur trade
Rupert's Land
micro-history
western Canada
colonialism
British Empire
Canadian Aboriginal
Metis
Hudson's Bay Company
economic history

description: This dissertation argues that the Hudson’s Bay Company depot that was built at Norway House beginning in 1825 created economic opportunities that were sufficiently strong to draw Aboriginal people to the site in such numbers that, within a decade of its establishment, the post was the locus of a thriving community. This was in spite of the lack of any significant trade in furs, in spite of the absence of an existing Aboriginal community on which to expand and in spite of the very small number of Hudson’s Bay Company personnel assigned to the post on a permanent basis. Although economic factors were not the only reason for the development of Norway House as a community, these factors were almost certainly primus inter pares of the various influences in that development. This study also offers a new framework for the conception and construction of community based on documenting day-to-day activities that were themselves behavioural reflections of intentionality and choice. Interpretation of these behaviours is possible by combining a variety of approaches and methodologies, some qualitative and some quantitative. By closely counting and analyzing data in archival records that were collected by fur trade agents in the course of their normal duties, it is possible to measure the importance of various activities such as construction, fishing and hunting. With a clear understanding of what people were actually doing, it is possible to interpret their intentions in the absence of explicit documentary evidence.
Bodengefährdende Stoffe
Creators: name: Wilcke, Wolfgang
name: Wilke, Bernd-Michael
Publisher: name: My University
Year: 2004
Subjects: Bodenschadstoff
Bodenfunktion
Bodenfauna
Bodenflora
Bodenrecht
Vorsorgewert
Prüfwert
Substrat
Analytik
Entscheidungshilfe
Bodenschutz
Grundwasserschutz
Ökotoxikologie
Sanierung
Gewässersediment
Schadstoffverhalten
Analysenverfahren
Sanierungsmaßnahme
Maßnahmenwert
Hintergrundwert
Schadstoffgehalt
Klärschlamm
Kompost
Grundwassergefährdung
Toxizität
Gesundheitsgefährdung
Gewässerboden
Exposition

description: Das vorliegende Werk 'Bodengefährdende Stoffe' stellt einen Katalog von Stoffen vor, die aufgrund ihrer Exposition, ihres Stoffverhaltens und ihrer Bedeutung im Hinblick auf die eingetragenen Mengen die Bodenfunktionen beeinträchtigen. Das Herzstück des Werkes sind die Stoffdatenblätter - auf Papier und CD-ROM, die übersichtliche und fundierte Praxisdaten und Informationen zu den spezifischen Stoffeigenschaften, ihrem Nachweis, ihrer Anreicherung, ihrem Vorkommen und Verhalten in Böden und ihren toxischen Wirkungen auf Menschen, Bodenfauna und Bodenflora liefern. Im ersten Teil des Werkes werden Grundlagen besprochen, welche die in den Stoffprofilen dargelegten Fakten im Zusammenhang zu verstehen helfen. Zusätzlich werden Informationen über die Bewertung von Stoffen vermittelt, das heißt welche Analyseverfahren anzuwenden sind und wie eine Bewertung vorgenommen werden kann. In einer Übersicht werden verschiedene Sanierungsverfahren vorgestellt. Eine Darstellung der Vorschriften im Bodenrecht macht die juristischen Grundlagen verständlich und gibt einen Überblick über die rechtliche Situation bei der Anwendung von Vorsorgewerten, Prüfwerten und Maßnahmewerten. Im zweiten Teil des Werkes werden einzelne Stoffprofile vorgestellt, die in übersichtlicher Darstellung die notwendigen Informationen zu den Stoffen vermitteln. Neben Angaben zu den chemischen und physikalischen Eigenschaften der Stoffe finden sich auch Angaben zur Herkunft und zur Verwertung, Informationen zu Hintergrundgehalten, Gehalten in unbelasteten und belasteten Böden und Sedimenten, Gewässern sowie von Klärschlamm, Komposten und sonstigen Substraten. Zusätzlich erhält der Benutzer des Werkes Information zur Analytik und zur Bewertung von Stoffen auch im Hinblick auf ihr grundwassergefährdendes Potenzial, der Anreicherung von Stoffen im Boden und der Pflanzenaufnahmen. Außerdem sind für jeden Stoff Angaben zu administrativen Vorgaben zusammengestellt. ... Das Werk dient als Entscheidungshilfe bei der Beurteilung und Bewertung von Schadensfällen im Bezug auf den Bodenschutz und Grundwasserschutz und die anzuwendenden Verordnungen sowie zur Ableitung von Maßnahmen. (gekürzt)
Kinematics and Kinetics of Total Hip Arthroplasty Patients during Gait and Stair Climbing: A Comparison of the Anterior and Lateral Surgical Approaches
Creators: name: Varin, Daniel
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011
Subjects: Biomechanics
Kinematics
Kinetics
Total Hip Arthroplasty
Inverse dynamics
Surgical Approach
Gait
Stair Ascent
Stair Descent

description: New surgical approaches for total hip arthroplasty (THA) are being developed to reduce muscle damage sustained during surgery, in the hope to allow better muscle functioning afterwards. The goal of this study was to compare the muscle sparing anterior (ANT) approach to a traditional lateral (LAT) approach with three-dimensional motion analysis. Kinematics and kinetics were obtained with an infrared camera system and force plates. It was hypothesized that (1) the ANT group would have closer to normal range of motion, moments and powers, compared to the LAT group, and that (2) the ANT group would have higher peak hip abduction moment than the LAT group. Forty patients undergoing unilateral THA for osteoarthritis between the ages of 50 and 75 (20 ANT, 20 LAT) were asked to perform three trials of walking, stair ascent and stair descent. Patients were assessed between six to twelve months postoperatively. Twenty age- and weight-matched control participants (CON) provided normative data. Results indicated that both THA groups had gait anomalies compared to the CON group. Both THA groups had reduced hip abduction moment during walking (CON vs. ANT: p<0.001; CON vs. LAT: p=0.011), and the ANT group had a significantly lower hip abduction moment compared to the LAT group (p=0.008). Similar results were observed during stair descent, where the ANT group had reduced peak hip abduction moment compared to the CON group (p<0.001) and the LAT group (p=0.014). This indicates that the anterior approach did not allow better gait and stair climbing ability after THA. It is therefore thought that other variables, such as preoperative gait adaptations, trauma from the surgery, or postoperative protection mechanisms to avoid loading the prosthetic hip, are factors that might be more important than surgical approach in determining the mechanics of THA patients after surgery.
Developing a new learning system with social software by studying the learners' readiness and acceptance
Creators: name: Sim, Serena
Publisher: name: Swinburne
Year: 2024

description: E-learning has increasingly been used by educational institutions to support their learning activities. However, previous studies have shown that the traditional e-learning model has put heavy emphasis on content delivery and technology (content and technology-centric model) instead without focusing on the social aspects of learning. Without these aspects, e-learning does not have the benefits of online learning community, personal learning environment and connectivism. This research aims to develop a new learning system (NLS) to the learners that integrates social software tools. The purpose of the NLS is to provide learners with a more collaborative, social and interactive learning experience in an online learning environment, which are rarely available in the traditional e-learning such as Blackboard. Past experiences have shown that new technologies do not necessary lead to major improvement in education. Therefore, to successfully implement the NLS, this research found that it is needed to assess readiness and acceptance of the learners in adapting to the different learning styles and learning experiences of the NLS. It also helps to understand the learners' learning needs and how they come to accept the NLS. In addition, this research has also carried out some theoretical studies on the social aspects of learning, collaborative learning, and investigation on the use of social software and its effect in learning to the learners. This is a multi-stage research, which incorporates theoretical analysis and empirical research through survey questionnaire. The second stage is subdivided into two phases. In the first phase, survey questionnaire was used to assess the learners' perceived readiness in adapting the NLS prior to the implementation of the prototype system. A prototype system was developed as the NLS based on the theoretical foundations and the research findings that this research has studied. The prototype system is then implemented for usability testing on the learners. In the second phase, another set of survey questionnaire was conducted on the learners who have participated in the usability testing to assess their acceptance towards the NLS. Overall, the participants show positive attitudes towards the NLS.
Cited2 and PFTAIRE, Two Ways in Which Cyclin Dependent Kinases Impact on Development and Degeneration in the Central Nervous System
Creators: name: Rodriguez Gonzalez, Yasmilde
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011

description: Cyclin dependent kinases (Cdks) belong to a large family of evolutionary conserved kinases that are at times divided into mitotic and post-mitotic Cdks, classifications based on their expression/function profile. Neuroblast proliferation rates, differentiation, developmental apoptosis, migration, axogenesis and maintenance are some of the processes which Cdks regulate in the Central Nervous System (CNS). Additionally, Cdks have a role in mature neurons mediating survival/degeneration. Their deregulation has been functionally linked to conditions such as Stroke, Alzheimer's disease and Parkinson's. However, the mechanisms underlying Cdk's involvement in neurons are far from being clear. Accordingly, this thesis research explored two subjects relevant to the functions of Cdks in the CNS: first, the mechanism through which Cited2, a Cdk4-dependent signal, mediates neuronal apoptosis after DNA damage and second, the potential role of PFTAIRE, a post-mitotic Cdk, in CNS development. Cited2, a CBP (cAMP response element-binding protein-binding protein)/p300 interacting transactivator, was identified as a signal upregulated in neurons after DNA damage. We showed that Cdk4 activation is required for Cited2 upregulation and that this event is upstream of mitochondrial cytochrome c release. Additionally, we report that Cited2 activates peroxisome proliferator-activated receptor- (PPAR), an activity that proved to be critical for DNA damage-induced death. We show that these two molecules require each other, forming an active complex that ultimately triggers the mitochondrial pathway of death. Our results not only define a novel Cdk4-mediated neuronal prodeath pathway but report for the first time functional data on Cited2 biological roles in neurons. In the second project, we explored the effects of the deficiency of PFTAIRE, a novel Cdk highly expressed in neurons, in development of the Drosophila ventral nerve cord (VNC). Using two different PFTAIRE Drosophila mutant lines, we demonstrated that the deficiency leads to CNS defects as early as stage 11 of embryonic development. Our findings show that PFTAIRE mutation leads to premature axon outgrowth, axon misguidance and defasciculation accompanied by disorganization of neuronal and glial cell bodies that affect both commissural and longitudinal axons of the VNC. Our data confirms for the first time that PFTAIRE has an essential role in CNS developmental processes and it may be required in neurons for proper axogenesis to occur.
Supplementary document for Flexible dynamic structural color based on ultrathin asymmetric Fabry-Perot cavity with phase-change material for temperature perception - 5311810.pdf
Creators: name: Zhao, Jiancun
name: Zhou, Yi
name: Huo, Yihui
name: Gao, Bo
name: Ma, Yungui
name: Yu, Yiting
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Nanophotonics

description: Color changing performance and incident angle insensitivity
Re-Inventing the Past, Defining the Future: Historical Representations and Regional Development in the Russian Northwest
Creators: name: Sorokina, Alfia
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: social field of historical production
territorial identity and development
re-invented traditions
owning development
regional image
historical representations
development resource pool
regional development
local development

description: This work explores the connections between the constructed representations of places based on local histories, the processes of tradition reinvention and the strategies of regional development in two Russian regions. This analysis also outlines the context created by the external to the regions influences and the associated with them local conditions.
Connecting the Dots Between Inflammatory Bowel Disease and Metabolic Syndrome: A Focus on Gut-Derived Metabolites
Creators: name: Verdugo-Meza, Andrea
name: Ye, Jiayu
name: Dadlani, Hansika
name: Ghosh, Sanjoy
name: Gibson, Deanna L.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2020

description: The role of the microbiome in health and disease has gained considerable attention and shed light on the etiology of complex diseases like inflammatory bowel disease (IBD) and metabolic syndrome (MetS). Since the microorganisms inhabiting the gut can confer either protective or harmful signals, understanding the functional network between the gut microbes and the host provides a comprehensive picture of health and disease status. In IBD, disruption of the gut barrier enhances microbe infiltration into the submucosae, which enhances the probability that gut-derived metabolites are translocated from the gut to the liver and pancreas. Considering inflammation and the gut microbiome can trigger intestinal barrier dysfunction, risk factors of metabolic diseases such as insulin resistance may have common roots with IBD. In this review, we focus on the overlap between IBD and MetS, and we explore the role of common metabolites in each disease in an attempt to connect a common origin, the gut microbiome and derived metabolites that affect the gut, liver and pancreas.
Azarenka, Tsonga and the sexism that chokes women's tennis
Creators: name: Spaaij, Ramon
name: Farquharson, Karen
Publisher: name: Swinburne
Year: 2024

description: Two interesting and intersecting events occurred at the Australian Open this week. First, Frenchman Jo-Wilfried Tsonga questioned women's ability to control their emotions while playing tennis at a press conference.
Does Additional Habitat Protection Facilitate the Recovery of Species Protected by the Endangered Species Act?
Creators: name: So, Rachel I.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2014
Subjects: critical habitat
protected areas
Endangered Species Act
recovery
conservation biology
habitat loss
habitat
threatened
imperiled

description: Earlier studies have found that endangered species recovery is only weakly associated with the tools enabled by the U.S. Endangered Species Act (ESA). With habitat loss often cited as a leading cause of species declines, we tested whether the recovery of ESA-listed species is instead associated with the protection of critical habitat (CH) by protected areas. We tested the relationship for 299 species using recovery indices derived from the biennial status reports to Congress (1990-2010), as well as NatureServe and IUCN population status data. We found no overall relationship between recovery and the extent to which CH is protected. However, restricting the analysis to recovering species, listed species with larger areas of protected (R2 = 0.158) or strictly protected (R2 = 0.194) CH fared better than species with less protected or strictly protected CH areas. Declining species (199 of 273 species studied) fared no better with more protected habitat. We conclude that the abatement of habitat loss alone does not necessarily facilitate recoveries for the majority of ESA-listed species. We also note that the weak relationships we observed in this study may be reflective of poor recovery status estimates.