Génération automatique de rapports boursiers français et anglais

Depuis peu de temps, il est possible, dans un sous-langage technique bien délimité, de créer des systèmes automatiques capables de générer, à partir d’une représentation sémantique, des textes linguistiquement bien formés. Un tel système existe pour le sous-langage boursier. En effet, à partir des données de la Bourse de New York, ce logiciel produit de façon automatique des résumés boursiers en anglais et en français. Le présent article présente le système anglais et français de génération automatique de texte et décrit brièvement les particularités du sous-langage boursier.It has become possible over the last few years to create automatic systems that generate, from a semantic representation, linguistically well-formed texts in a well-defined technical sublanguage. Such a system exists for the sublanguage of stock market reports. The system produces English and French stock market reports from the same data coming from the New York Stock Exchange. This article presents this English and French automatic text generation system and briefly describes the particularities of the stock market sublanguage

Developing an Independent Reading Program within the Framework of a Biblical Worldview

Students today, especially middle and high school students, are reading less for pleasure than they used to. Research studies have proven that reading helps students grow academically and encourages them to see the world differently. So, to encourage students to read, some schools are giving students time to read in independent programs such as Silent Sustained Reading (SSR), Accelerated Reader Program (ARP), or even implementing reward programs to improve students’ reading ability. Many researchers have described what aspects of independent reading programs work and what aspects do not. Their conclusions show that there are aspects within the programs that motivate students to read. Although Christian school teachers also want students to be motivated readers, their goals for their students are expanded due to their Christian worldview. The goal of this paper is to discover what a successful independent reading program looks like in the context of biblical, Christian education

Radiation-induced easy peeling and oblong fruit mutants of the tomato.

The genetics of two radiation-induced mutants of cv. Moneymaker, "easy peeling" and "oblong fruit with strong skin", were studied. Both were governed by a single recessive gene. The combination of both traits was achieved by crossing, but it was impossible to break the association between oblong fruit and strong skin. Hybrid easy peeling material with round or oblong fruit shape was selected for yield and improvements up to 30% over Moneymaker were reached under experimental conditions. The easy peeling trait may be of interest both for the canning industry and for fresh consumption.-Univ. Wageningen & Neth. Inst. atomic Sci. Agric. (Abstract retrieved from CAB Abstracts by CABI’s permission

Multi-vanadium substituted polyoxometalates as efficient electrocatalysts for the oxidation of l-cysteine at low potential on glassy carbon electrodes

The electrochemical behaviours of the sandwich-type complex [As2W18(VO)3O66]11- were studied in a pH 7 medium and compared with those of the three following Dawson-type vanadium-substituted complexes: [P2V2W16O62]8- (P2V2W16), [P2MoV2W15O62]8- (P2MoV2W15) and [P2V3W15O62]9- (P2V3W15). Electrochemistry shows that the sandwich-type POM contains 2 VIV centers and one VV center and must be formulated As2V2IVVW18, in agreement with titration, elemental analysis and magnetic measurements on this element.. All the POMs of this work proved efficient for the oxidation of L-cysteine. Comparison of the present results with those of mono-Vanadium substituted POMs indicates that accumulation of vanadium atoms in the POM framework is beneficial in the electrocatalytic process. In addition, the present work highlights the important influence of the POM structure in the electrocatalytic oxidation of L-cysteine. The remarkable outcome of this work is that the potential for the oxidation of L-cysteine in the presence of the selected POMs has been substantially driven in the negative direction compared to the case of glassy carbon alone, a feature which is associated with faster kinetics. The stability of the systems must also be pointed out

Exploration d'interventions pédagogiques sur l'autorégulation de l'apprentissage par la lecture auprès d'adolescents en difficulté d'apprentissage dans des écoles en milieu défavorisé

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

Réponses physiologiques et désactivation des voies de signalisation spécifiques de l'EGFR dans les cellules de carcinome buccal humain par l'anéthol

Le cancer de la bouche est un problème de santé publique majeur. Les traitements des cancers buccaux incluent l’utilisation de la chirurgie, de la chimiothérapie et de la radiothérapie. Bien que fonctionnels, ces traitements présentent de nombreux effets indésirables. Il est pertinent de mettre au point une nouvelle génération de médicaments anticancéreux efficaces et spécifiques. L’objectif de cette étude est d’évaluer les propriétés antitumorales de l'anéthol (1-méthoxy-4-[(E)-1-propényl]-benzène), un composé extrait du fenouil et de l'anis, afin de caractériser ses effets sur des cellules de carcinome buccal. Pour ce faire, des cellules gingivales cancéreuses (Ca9-22), des cellules épithéliales gingivales primaires et des fibroblastes ont été traités avec différentes concentrations d’anéthol. La prolifération cellulaire et l'effet cytotoxique de l’anéthol sur les trois types cellulaires ont été mesurés respectivement par MTT et LDH, tout comme l’effet synergique avec le cisplatine. La mort cellulaire, l’autophagie et le stress oxydatif des Ca9-22 ont été mesurés par cytométrie en flux. La migration cellulaire a été évaluée par la capacité de cicatrisation alors que l’expression des protéines impliquées dans les voies de signalisation de l’EGFR (ERK1/2, p38, pJNK) a été étudiée par immunobuvardage. Nos résultats ont démontré que l’anéthol diminue de manière dose-dépendante la prolifération cellulaire et induit l’apoptose des cellules cancéreuses comparativement aux cellules gingivales normales. L’anéthol inhibe le stress oxydatif et favorise l’autophagie des Ca9-22. L’anéthol inhibe la transition épithéliomésenchymateuse, réduit l’expression des métalloprotéases, ainsi que la production des protéines oncogènes, dont cyclineD1, mais augmente l’expression du gène suppresseur de tumeur p53. L’anéthol inhibe les voies de signalisation dépendantes de l’activation de l’EGFR et Wnt, et active le clivage des caspases et de PARP1. Enfin, l’anéthol montre une synergie avec le traitement par cisplatine. En conclusion, nos résultats obtenus suggèrent que l’anéthol pourrait être utilisé comme thérapie complémentaire ou alternative du cancer de la bouche.Oral cancer is a major public health problem. Treatments for oral cancer include the use of surgery, chemotherapy, and radiation therapy. Although functional, these treatments have many side effects. It is relevant to develop a new generation of effective and specific anticancer drugs. The objective of this study is to assess the antitumor properties of anethole (1-methoxy-4 - [(E) -1-propenyl] -benzene), a compound extracted from fennel and anise, in order to characterize its effects on oral carcinoma cells. To do this, cancerous gum cells (Ca9-22), primary gingival epithelial cells and fibroblasts were treated with different concentrations of anethole. Cell proliferation and the cytotoxic effect of anethole on all three cell types were measured respectively by MTT and LDH, as was the synergistic effect with cisplatin. Cell death, autophagy and oxidative stress of Ca9-22 were measured by flow cytometry. Cell migration was assessed by the healing capacity while the expression of proteins involved in EGFR signaling pathways (ERK1/2, p38, pJNK) and other proteins involved in cancer-signaling pathways was studied by immunoblotting. Our results showed that anethole dose-dependently decreases cell proliferation and induces cancer cell apoptosis compared to normal gingival cells. Anethole inhibits oxidative stress and promotes autophagy of Ca9-22. Anethole inhibits epithelial-mesenchymal transition, reduces the expression of metalloproteases, as well as the production of oncogenic proteins, as cyclinD1, but increases the expression of the tumor suppressor gene p53. Anethole inhibits Wnt and signaling pathways dependent on EGFR activation, and activates the cleavage of caspases and PARP1. Finally, our results show that this compound has a synergistic effect with cisplatine treatment. In conclusion, these results suggest that anethole could be used as a complementary or alternative therapy to oral cancer

Aplicação de redes neurais no processo de filament winding

Orientadores : Liliane Maria Ferrareso Lona, Veronica Maria de Araujo CaladoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia QuimicaResumo: Compósitos poliméricos ou plásticos reforçados são materiais formados a partir de uma matriz polimérica e um reforço. Atualmente, o setor dos compósitos poliméricos é um dos mais promissores, devido às muitas vantagens desses materiais, entre elas redução do peso, resistência à corrosão e a temperaturas elevadas, e redução dos custos de fabricação quando comparados aos materiais convencionais da engenharia. O Brasil é o líder desse mercado na América Sul, região que tem exibido o maior crescimento mundial desde 1993. Entre os diversos métodos de fabricação de compósitos poliméricos de matriz termorrigida (que representa cerca de 3/4 dos compósitos poliméricos) e reforço de fibras "contínuas, está. o filament winding, muito .empregado na produção de sólidos de revolução, como dutos, cilindros e tanques. Uma das grandes restrições para uma maior exploração comercial dos métodos de preparação de compósitos, incluindo o filament winding (filamento contínuo), reside na dificuldade de relacionar os vários parâmetros do sistema com a qualidade do produto final e com a eficiência do processo. Neste trabalho, redes neurais artificiais foram aplicadas no processo de filament winding em dois casos: (a) predição de propriedades que descrevem a qualidade do produto final (propriedades mecânicas e térmicas de peças) utilizando como conjunto de treinamento ensaios industriais de caracterização experimental e (b) predições do comportamento térmico de compósitos durante a etapa de cura, sendo que para o treinamento dessas redes foram obtidos dados através do modelo Lee-Springer. Foram desenvolvidos programas computacionais empregando os algoritmos de backpropagation e delta-barra-delta, e a influência de cada variável de entrada nas saídas da rede foi determinada através da Equação de Garson. Os resultados encontrados mostraram a eficiência da aprendizagem das redes em todos os casos estudados. A aplicação de redes neurais na modelagem do processo de filament winding pode levar a uma melhor compreensão do processo, redução do tempo de desenvolvimento de novos produtos e do custoAbstract: Polymer composites or reinforced plastics are materials made with a polymer matrix and a reinforcement. Nowadays polymer composite market is one of the most promising, because of the many advantages of these materials such as weight saving, corrosion and temperature resistance and manufacturing cost reduction, when compared to conventional engineering materials. Brazil is the leader of polymer composite market in South America, which has shown the largest growth of this segment in the world since 1993. Among manufacturing methods for thermoset polymer matrix composites (that represent about 3/4 of the polymer composites) and continuous fiber reinforcement is the filament winding, often used for manufacture of closed-surface structures such as pipes, cylinders and tanks. One of the constraints in the great commercial exploitation of the composite manufacturing methods, including filament winding, is the difficulty to relate the many process parameters with product quality and process efficiency. In this work, artificial neural networks were applied in the filament winding process in two cases: (a) prediction of properties that describe final product quality (mechanical and thermal strength of parts) using as training set industrial tests of experimental characterization and (b) prediction of thermal behavior of composites during cure step, being the networks trained with data obtained using Lee-Springer mode!. Computer programs have been developed with backpropagation and delta-bar -delta algorithms and the influence of each input variable in the network outputs has been determinated using Garson Equation. Results obtained have shown network learning efficacy in alI studied cases. Application of neural networks in the filament winding process can give a better understanding of the process, reducing product development time and costMestradoMestre em Engenharia Químic