NCube/papyrus huggingface dataset:
Le cèdre blanc (Thuja occidentalis)dans le paysage culturel en amont de Montréal au XIXe siècle. Une approche dendroarchéologique

This master’s thesis is about the colonization context and forestry exploitation of eastern white cedar (Thuya occidentalis) in the Montreal hinterland of the 19th century. On the one hand, it aims to document the local exploitation strategies of eastern white cedar and the evolution of the domestic cultural landscape of colonial landholdings since their initial concession. On the other hand, this thesis seeks to identify the exchange networks of the cedar timber that was shipped to Montreal for the construction of the city’s buildings and port facilities. With the near absence of historical documentation on the subject, only the application of the dendrochronology and the dendroprovenancing allows us to attain our objectives. We present a detailed analysis of six rural sites in the Ottawa and the Upper Saint Lawrence Valleys. Dendrochronology analysis of these areas enables us to tackle colonial establishment in an original way. The second part of this thesis is dedicated to the dendroprovenancing analysis of seven Montreal sites, all studied beforehand by Poudret-Barré (2007) and the Groupe de recherches en dendrochronologie historique (GRDH). To do so, the previously designated sites will serve as a geographic anchor point to help us determine the origin of the pieces of eastern white cedar found in Montreal. Our study of eastern white cedar along with the results of the dendrochronology and dendroprovenancing analysis allows us to tackle the architectural and archeological heritage from a new angle. Completing the available history data, it also opens the way to new research of the same kind.

Keyphrases: dendrochronologie, thuya occidental, dendroarchaeology, dendrochronology, dendroprovenancing, 19th century, eastern white cedar, log buildings
Prolongation de l’intervalle QT corrigé chez les adultes atteints de lupus érythémateux disséminé porteurs de l’anticorps anti-Ro/SSA

QT interval prolongation on the electrocardiogram is a risk factor for ventricular arrhythmias and sudden cardiac death. This abnormality is found in patients with systemic lupus erythematosus and could contribute to the high cardiovascular mortality rate in this population. Anti-Ro/SSA is an auto-antibody presents in about 30% of lupus patients and is associated with congenital cardiac block. This auto-antibody could also increase the risk of pathologic prolongation of the QT interval in adults.   This master’s thesis is comprised of five chapters discussing the potential association between anti-Ro/SSA antibody and QT interval prolongation. The first chapter is an introduction to the essential elements for the understanding of the study project. The second chapter is a literature review of the potential link between anti-Ro/SSA and QT interval prolongation. The third chapter presents the study project through an article published in Arthritis Care and Research.  In this study, patients from the McGill lupus cohort were invited to undergo electrocardiograms in order to estimate the association between anti-Ro/SSA antibody and electrocardiographic abnormalities, while taking into account the other potentially associated demographic and clinical factors. This study shows an association between anti-Ro/SSA and prolonged QT interval (Odds ratios: 5.1 to 12.6) and patients positive for anti-Ro/SSA may thus benefit from electrocardiographic testing. Strengths and weaknesses of this article are discussed in the fourth chapter and future research areas are finally explored.

Keyphrases: Connectivite, Lupus, Anti-Ro/SSA, QT, Connective tissue disease, Lupus, Autoimmunity, Anti-Ro/SSA, Heart disease, Arrhythmia, QT
Étude de prévalence et associations des gènes de virulence et résistance aux antimicrobiens d’Escherichia coli de la flore intestinale du poulet sain

Avian Pathogenic E. coli (APEC) belong to the extra-intestinal pathogenic E. coli (ExPEC) pathotype, and may be a virulence and antimicrobial resistance (AMR) gene reservoir for ExPEC in humans. The aim of this study was to evaluate the effect of addition to the feed of a prebiotic or an organic acid on the prevalence of ExPEC-associated virulence genes and antimicrobial resistance (AMR) genes and the association between these genes in E. coli of the intestinal microflora of healthy chickens. Caecal contents from 29-day-old chickens having received one of these feed ingredients in comparison to a control group were examined for the presence of virulence genes iucD, tsh, and papC and AMR genes blaTEM, blaSHV, tetA, tetC, blaCMY-2, aadA1, and aac3 by PCR. The prevalence of iucD was significantly higher in the control group than in the prebiotic and organic acid groups and prevalence of papC was affected by the use of the organic acid. The prevalence of blaCMY-2-positive E. coli isolates was higher in the control group than the prebiotic or organic acid groups, as demonstrated by Hydrophobic–grid membrane filter (HGMF) DNA probe colony hybridization. In addition, the prevalence of E. coli isolates positive for tetA, blaTEM, aadA1 or tsh was affected by the use of these feed ingredients. Overall, associations between the presence of iucD and tsh, blaTEM and aadA1, and iucD and blaCMY-2 were observed. This study demonstrates that the use of certain feed ingredients could reduce the risk of exposure in a public health perspective.

Keyphrases: Poulets sains, Antimicrobial resistance genes, Virulence genes, Healthy chickens, Caecal E. coli, Feed ingredients prebiotic, Organic acid, ExPEC, APEC, HGMF, PCR
L’incidence de la relation maître-élève sur la motivation d’élèves du primaire provenant de milieux défavorisés

The objective of this research was to assess the impact of the teacher-student relationship on students’ motivation, particularly within low income families. The study conducted was based on the hypothesis that better teacher-student relationship lead to a higher level of motivation for the student. In order to verify this hypothesis, our objectives were to analyse the predictive value of the teacher-student relationship on school motivational determinants in order to identify which aspects of teacher-student relationship, in an attachment perspective (caring, supportive or conflictive), could better predict each of the motivational variables. Also, we wanted to identify which of these motivational variables are most affected by the quality of the teacher-student relationship. Some of the determinants come from Expectancy-Value models (perceived competence, interest, perceived utility of school in general, and for French and Mathematics). Other determinants come from goal orientation theory (mastery goal, performance goal and work avoidance goal). We also verified the moderator effect of gender in the attachment variables and the motivation.  Our results show that the student-teacher relationship can predict interest in schooling in general, specific interest in French and Mathematics, and the presence of avoidance goal. We also showed that a supporting relationship could be the aspect of teacher-student relationship which mostly predicts the motivational variables. It was also surprising to see the impact of a caring relationship on the three dimensions of interest (general and subject related). Interest in general was also the motivational variable best predicted by the teacher-student relationship. We also showed that the perception of conflict is the aspect of the teacher-student relationship which could best predict some of the motivational determinants. However, our results could not support the moderator effect of gender on the relationship.

Keyphrases: School motivation, Student-teacher relationship, Socioeconomic status, Perceived competence, Interest, Utility value, Goal orientation
Faulkner adapting Faulkner : gender and genre in Hollywood and after

This dissertation offers a new narrative of William Faulkner’s Hollywood experiences and uses it to initiate a reevaluation of his middle and late fiction.   In his earliest screenplay projects, Faulkner chose to adapt his previously published fiction. Read in light of Hollywood studios’ reliance on gender and genre to organize film production and marketing, this fiction suddenly appeared perverse; its portraits of masculinity, homoerotic. In his draft screenplays for Turn About and War Birds Faulkner appropriates Hollywood genre norms to negate these sexual connotations. His revisions reveal a pattern of recoil from Hollywood perversity and the woman’s film; and of an embrace of the war picture’s performance of masculinity. They also re-imagine materials central to Faulkner’s ongoing fictional project.  Faulkner later repeats this pattern of response in such stories as “Golden Land” and “An Odor of Verbena,” both of which break from the defining practices and styles of his earlier, major fiction. The consequences that follow from this Hollywood influence—an effort to extinguish sexual connotation, an authentic rather than ironic embrace of generic melodrama, and a moral rhetoric explicitly constructed as a negation of Hollywood—later manifest in texts as diverse as The Reivers, the Compson Appendix, and the Nobel Prize acceptance speech. Viewed in this light, the late fictions become an essential component of his oeuvre, offering a new site for re-examining the place of popular genre , gender and sexuality in the Yoknapatawpha saga.

Keyphrases: Faulkner, Hollywood, Queer, Gender, Genre, War, Screenplay, Adaptation
TIC et formation des enseignants du fondamental en Haïti : barrières et facteurs facilitants

The achievement of Education for All objectives in Haiti imperatively requires, among other things, a massive and intensive teacher training campaign - both initial and in-service training. Unfortunately, the existing training structures are far from being able to meet this demand. It will therefore be necessary to consider other training strategies, particularly those using ICTs (Information and Communications Technologies). It is, however, very tempting, in this area, to copy what is being carried out in France, Canada and the United States, and thereby lengthen the list of failures due to insufficient or inexistent adaptation. In order to maximize the chances of success, it is important to study the appropriateness of adopted strategies for the Haitian context and learners.  This research studies relevant characteristics of Haitian teachers of the first two cycles of fundamental school (primary school) as learners, characteristics that may constitute internal barriers or enablers to an effective integration of ICTs in their training. In a first quantitative phase, a survey was administered to 176 teachers in 2009-2010. The data analysis revealed three high tendencies: a positive attitude towards innovation and ICTs, intrinsic sources of motivation, and a high power distance; two other important results are worth mentioning: the low level of familiarity with computers and the massive adoption of cellular phones; the answers about conception of teaching and learning, and the individualism-collectivism dimension were more balanced. A factor analysis identified four factors: the capacity to use ICTs, the desire for change, the conception of the trainer’s role, and power distance. The survey was followed, at the end of 2010, by a qualitative phase consisting of seven interviews with teacher training experts in Haiti and three focus groups with fundamental school teachers. The purpose of this phase was to enrich, complete, explain, and illustrate the quantitative results. Despite their more severe point of view, the teacher training experts largely contributed to the interpretation of the results, particularly those concerning attitude towards innovations and ICTs, individualism-collectivism dimension, and conception of teaching and learning. The focus groups globally endorsed the quantitative results, with some explanations and nuances. Particularly, they stressed the importance of two factors that were not on the initial list and that emerged from the factor analysis: the desire of change and the conception of the trainer’s role. They also brought up relevant points that helped shed light on power distance.

Keyphrases: Teachers training, ICT and learning, Haiti education, Learners characteristics, Barriers to learning, Enablers to learning, ICT barriers, ICT enablers
Autour de Pierre Falardeau : found footage et réemploi d'images dans le cinéma politique

This thesis is concerned with the reuse of images in political cinema in general and, specifically, in the work of Quebec filmmaker Pierre Falardeau. We will first see how, from a historical point of view, archival images have been recycled in traditional documentary and then how they were used or reused for political purposes in found footage experimental films. We will then discuss the use of found footage in militant or revolutionary cinema both in Latin America (Santiago Alvarez, Fernando Solanas and Octavio Getino) and France (Guy Debord, Chris Marker and Jean-Luc Godard). We will then analyse Pierre Falardeau’s reuse of images in three of his documentaries: Pea Soup, Speak White and Le temps des bouffons. We will try and see how Falardeau fits within this tradition of the found footage film and the distinctive features of this aspect of his work.

Keyphrases: Found footage film, Ciné-tract, Pierre Falardeau, Political cinema, Militant cinema, Revolutionary cinema, Lettrist cinema
Impact de l’anémie postopératoire sur la récupération fonctionnelle et la qualité de vie après une arthroplastie de la hanche ou du genou

Red blood cell transfusions are frequently used to treat anemia after total hip or knee arthroplasties. The indications for transfusions remain unclear despite published guidelines. Clinicians have adopted a restrictive transfusion threshold (75-80 g/L) but the consequences of such a strategy on functional outcome and quality of life are not known. First, we characterized the transfusion practice inside the Centre hospitalier de l’Université de Montréal (CHUM). Our hypothesis was that transfusion practice varies inside the CHUM due to uncertainty. A retrospective study of 701 charts of patients operated for a hip or knee arthroplasty was conducted. We observed that there was no difference among hospitals regarding the way transfusions are used and that physicians mainly based their decision to transfuse on a single variable, the hemoglobin concentration, adopting a restrictive transfusion strategy. Sixty-six percent of patients had a hemoglobin concentration under 100 g/L after surgery. Second, we evaluated the impact of this postoperative anemia on functional outcome and quality of life. We hypothesized that a threshold hemoglobin concentration exists below which these become impaired. A prospective, observational cohort study was conducted in 305 patients categorized in groups according to their postoperative hemoglobin concentration. Hemoglobin groups (≤ 80, 81-90, 91-100 and > 100 g/L) were similar in the evolution of the distance walked in six minutes, perception of effort, maximal dominant hand strength and quality of life scores. Thus, moderate anemia is not associated with an impaired functional recovery or quality of life early after hip and knee arthroplasties. Further studies will be required to determine the long-term consequences of a restrictive transfusion strategy in these patients.

Keyphrases: Transfusion sanguine, Red blood cell transfusion, Anemia, Hemoglobin, Transfusion threshold, Orthopedic surgery, Arthroplastie, Arthroplasty, Functional outcome, Quality of life
Rôles et régulation des enzymes antioxydantes paraoxonases au niveau intestinal et implication dans les maladies inflammatoires de l'intestin

Oxidative stress is a major part of the pathogenesis of inflammatory bowel disease (IBD). The endogenous antioxidative defence is formed of multiple enzymes that have to protect cellular integrity. Paraoxonases (PON1, 2 and 3) are antioxidant enzymes that have recently been identified throughout the digestive tract, but their roles remain unclear in the intestine. Intestinal Caco-2/15 cells, which have the capacity to differentiate and exhibit the functionality of the small intestine, were used to study PON’s regulation. Cells were treated with various physiological effectors (cytokines, lipopolysaccharides, oxidative stress) and pharmacological molecules (fibrates, thiazolidinediones) and gene and protein expression were determined. Results obtained showed that PONs are distinctly modulated especially by inflammation and oxidative stress and suggests that they could play different roles in the maintenance of intestinal homeostasis. PONs regulation has also been the main topic of a review article. Our results and the literature pointed to PON2 as the most important PON for intestinal health. To better define PON2 functions in the intestine, PON2 expression was knocked-down using lentiviral infection and plasmids containing anti-PON2 shRNA. In the relative absence of PON2, Caco-2/15 cells were more susceptible towards induction of oxidative stress, the inflammatory response was exacerbated and cell permeability seemed altered. All of these components are major players involved in the development of human IBD. Moreover, Caco-2/15 cells were treated with purified PON2, which increased their antioxidative defence. All of these results suggest that PONs are implicated in the antioxidative and anti-inflammatory response in intestinal epithelial cells and makes them potentially important players for the aetiology and pathogenesis of IBD.

Keyphrases: paraoxonase, intestin, inflammation, oxidative stress, lipid peroxydation, lentiviral knockdown, intestine
La controverse publique au quotidien : le cas d’un organisme de défense des droits LGBT

This thesis aims to describe and understand how public controversies are manifested and accomplished through the communicative practices of advocates for the rights of gays, lesbians, bisexuals, transsexuals and transgenders (LGBT). After a brief historical overview of the concept of public controversy and the study of its use in specialized literatures (sociology of science, rhetorical studies, management science), I propose to adopt a processual view of public controversy conceived as a communicative accomplishment. To account for this communicative accomplishment, a four-month ethnography was conducted in a community-based organization that defends the rights of LGBT people. The analysis helps to explain how activists become passionate about an issue and undertake political action. It details problems of alignment that result from various public controversies, such as legal and social recognition of transsexuals.

Keyphrases: Interaction, Controversy, Ethnography, Everyday life, Interaction, Political communication
Les impacts de la satisfaction envers les régimes de rémunération variable sur l’engagement organisationnel des travailleurs

The objective of this study is to understand the impact of the satisfaction with variable pay plans on organizational commitment of workers. To investigate this question, we used three hypotheses based on the theory of expectations and on the agency theory. The first hypothesis states that satisfaction with bonus plans increases the level of affective organizational commitment of workers. The second hypothesis is that satisfaction with profit-sharing plans increases the level of affective organizational commitment of workers. The third hypothesis states that satisfaction with stock ownership plans increases the level of affective organizational commitment of workers.  We used a database from a wider survey on "the links between compensation, training and skills development and attracting and retaining key employees." The company where the data was collected is in the field of information technology and communications. New employees hired in this company based in Montreal were interviewed.  Our results allow us to confirm two of our hypotheses. Our results indicate that individuals satisfied with variable pay plans, more precisely towards the bonus plans and stock ownership plans, have higher levels of organizational commitment. Perceived organizational support is also an important factor in the development of organizational commitment.  Finally, this study concludes with the implication of our results for the different actors in industrial relations.

Keyphrases: Organizational commitment, Affective commitment, Variable pay plan, Satisfaction with variable pay plans
Nature des perceptions entourant les qualités écologiques des objets à caractère artisanal

In these days, artisanal-looking objects often symbolize ecological qualities such as natural materials and ethical production. The aims of the study were to explore perceptions towards artisanal looking objects and that, in order to recognize what ecological qualities are attributed to them, while trying to understand the reasons behind these associations. A study of users allowed to explore all the qualities that can be associated with this type of object, considering specifically the relationship between these environmental qualities and their planned lifespan. To do so, topics such as long-term appreciation, meaning and consideration of cultural diversity were examined during individual interviews. Results show that artisanal-looking objects are caracterized as objects being made of materials that are natural and safe for users. As well, their patina stimulates the perception of having a « story », and their originality gives the perception of the object having « soul ». Lastly, because they are considered as being made by independent designers, these objects are associated with ethical working conditions and are perceived as having the capability to drive the local economy. Among other things, the information gathered can inform theory and practice in the field of industrial design on the ability of artisanal-looking objects to be appreciated. Information can also shed light on their planned lifespan in regard to user’s level of emotional attachment, and on the desire of users to preserve and to bestow them upon future generations. This project stands as a first inventory of perceptions pertaining to this type of object, a field of research not yet well documented although it is in line with the current environmental and social context. The obtained results, therefore, contribute to the ongoing project of a more sustainable design, production and consumption.

Keyphrases: perception, consommation durable, design durable, artisanal-looking objects, semantics, perception, ecological qualities, visual cultures, sustainable consumption, sustainable design