Personality extraction through LinkedIn

L'extraction de personnalité sur les réseaux sociaux est un domaine qui n'a que récemment commencé à capturer l'attention des chercheurs. La tâche consiste à, en partant d'un corpus de profils d'utilisateurs de réseaux sociaux, être capable de classifier leur personnalité correctement, selon un modèle de personnalité tel que défini en psychologie. Ce mémoire apporte trois innovations au domaine. Premièrement, la collecte d'un corpus d'utilisateurs LinkedIn. Deuxièmement, l'extraction sur deux modèles de personnalités, MBTI et DiSC, l'extraction sur DiSC n'ayant pas encore été faite dans le domaine, et finalement, la possibilité de passer d'un modèle de personnalité à l'autre est explorée, dans l'idée qu'il serait ainsi possible d'obtenir les résultats de multiples modèles de personnalités en partant d'un seul test.Personality extraction through social networks is a field that only recently started to capture the attention of researchers. The task consists in, starting with a corpus of user profiles on a particular social network, classifying their personalities correctly, according to a specific personality model as described in psychology. In this master thesis, three innovations to the domain are presented. Firstly, the collection of a corpus of LinkedIn users. Secondly, the extraction of the personality according to two personality models, DiSC and MBTI, the extraction with DiSC having never been done before. Lastly, the idea of going from one personality model to the other is explored, thus creating the possibility of having the results on two personality models with only one personality test

Effet sur l'offre de travail d'une politique de fractionnement du revenu aux fins d'impôts

Lors de l'élection fédérale de 2011, le parti Conservateur du Canada a proposé d'instaurer le fractionnement du revenu de travail pour les couples avec un enfant de moins de 18 ans, lors du retour à l'équilibre budgétaire. Cette mesure à été officiellement annoncée dans le cadre du budget 2015-2016. Dans ce travail, nous utilisons un modèle d'offre de travail à choix discrets pour examiner l'effet de cette réforme fiscale prospective sur l'offre de travail des couples. Nous trouvons qu'avec des comportement constant, cette réforme fiscale pourrait coûter 2,9 milliards de dollars contrairement au 2,2 milliards annoncés. Avec une offre de travail variable, nous trouvons que suite au départ potentiel de près de 95 000 femmes du marché du travail, le coût de la réforme pourrait atteindre 3,7 milliards de dollars

Are the career choices of paediatric residents meeting the needs of academic centres in Canada?

BACKGROUND: Responsibility for training paediatric medical sub-specialists in Canada lies primarily with the 16 academic paediatric departments. There has been no mechanism to assess whether the number of residents in training will meet the needs of currently vacant positions and/or the predicted vacancies to be created by anticipated faculty retirement in the next five years across the different paediatric medical subspecialties. HYPOTHESIS: At the present time, the training of the paediatric physician is not linked with the current and future needs of the academic centres where the vast majority of these paediatric sub-specialists are employed. METHODS: The academic paediatric workforce database of the Paediatric Chairs of Canada (PCC) for the surveys obtained in 2009/2010 were analyzed. Data included the number of physicians working in each subspecialty, the number of physicians 60 years of age or older, as well as the number of residents and their level of training. RESULTS: There are some paediatric subspecialties in which the actual number of trainees exceeds the currently predicted need (eg, cardiology, critical care, hematology-oncology, nephrology, neurology, emergency medicine and genetic-metabolic). On the other hand, for other specialties (eg, adolescent medicine, developmental paediatrics, gastroenterology and neonatology), assuming there is no significant change to selection patterns, an important gap will persist or appear between the need and the available human resources. CONCLUSION: The present analysis was the first attempt to link the clinical orientation of trainees with the needs of the academic centres where the vast majority of these paediatric subspecialists work. ©2012 Pulsus Group Inc. All rights reserved

Gene expression profile of androgen modulated genes in the murine fetal developing lung

<p>Abstract</p> <p>Background</p> <p>Accumulating evidences suggest that sex affects lung development. Indeed, a higher incidence of respiratory distress syndrome is observed in male compared to female preterm neonates at comparable developmental stage and experimental studies demonstrated an androgen-related delay in male lung maturation. However, the precise mechanisms underlying these deleterious effects of androgens in lung maturation are only partially understood.</p> <p>Methods</p> <p>To build up a better understanding of the effect of androgens on lung development, we analyzed by microarrays the expression of genes showing a sexual difference and those modulated by androgens. Lungs of murine fetuses resulting from a timely mating window of 1 hour were studied at gestational day 17 (GD17) and GD18, corresponding to the period of surge of surfactant production. Using injections of the antiandrogen flutamide to pregnant mice, we hunted for genes in fetal lungs which are transcriptionally modulated by androgens.</p> <p>Results</p> <p>Results revealed that 1844 genes were expressed with a sexual difference at GD17 and 833 at GD18. Many genes were significantly modulated by flutamide: 1597 at GD17 and 1775 at GD18. Datasets were analyzed by using in silico tools for reconstruction of cellular pathways. Between GD17 and GD18, male lungs showed an intensive transcriptional activity of proliferative pathways along with the onset of lung differentiation. Among the genes showing a sex difference or an antiandrogen modulation of their expression, we specifically identified androgen receptor interacting genes, surfactant related genes in particularly those involved in the pathway leading to phospholipid synthesis, and several genes of lung development regulator pathways. Among these latter, some genes related to Shh, FGF, TGF-beta, BMP, and Wnt signaling are modulated by sex and/or antiandrogen treatment.</p> <p>Conclusion</p> <p>Our results show clearly that there is a real delay in lung maturation between male and female in this period, the latter pursuing already lung maturation while the proper is not yet fully engaged in the differentiation processes at GD17. In addition, this study provides a list of genes which are under the control of androgens within the lung at the moment of surge of surfactant production in murine fetal lung.</p