339 research outputs found

    Approche psychologigue de la resistance aux changements chez Les enseignant D’E.P.S

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    الملخص: يتمحور موضوع هذه الدراسة حول وصف وفهم مقاومة التغيير لدى أساتذة التربية البدنيةوالرياضية تجاه التجديد البيداغوجي من وجهة نظر نفسية، وذلك انطلاقا من دراسة شخصية الأساتذة. ومن خلال نتائج اختبارNEO PI-R  لـ(Costa et MCCrae,1995)   سمحت بالتفريق بين الأساتذة الذين يطبقون المقاربة بالكفاءات و بين زملاءهم المقاومون للتغيير في كل من بعد الضمير و الوفاق.نتائجهم العالية في بعد الضمير تدل على أنهم أفراد فاعلون ويتحملون التزاماتهم، بأنهم مركزون في العمل وفي المجهودات المطلوبة لتحقيق أهدافهم. ويتميزون كذلك بالتصالح وتفضيل تجنب الصراعات.و يقيمون علاقات بينية بكلثقةوإيثارL’objet de cette étude consiste à décrire et comprendre la résistance aux changements des enseignants d’éducation physique et sportive.Les résultats du NEO PI-R (Costa et MCCrae, 1995) ont permis de distinguer les enseignants appliquant l’approche par compétences de leur collègues résistants dans les dimensions de Conscience et d'Agréabilité. Leurs scores élevés en Conscience signifient qu'ils sont des personnes fiables et qui assument leur engagement. Ils sont très centrés sur le travail et les efforts requis pour atteindre leurs objectifs. Ils sont également conciliants et préfèrent éviter les conflits. Ils abordent les relations interpersonnelles avec confiance et altruisme. &nbsp

    TACTICAL SKILLS AND THEIR RELATIONSHIP WITH THE LEVEL OF TACTICAL THINKING AMONG FOOTBALL PLAYERS - A FIELD STUDY CONDUCTED ON CLUBS FROM BOUIRA PROVINCE, ALGERIA

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    This study aimed to identify the relationship between the tactical skills level of tactical thinking among football players. To achieve this, the researchers used the analytical descriptive approach to preserve the suitability nature of the study on a sample of 75 players from 3 clubs of football at the level of clubs Bouira province, randomly chosen. By testing their standard tactical skills and tactical thinking, it has been found the following results: there is a strong positive relationship between the level of tactical skill and tactical thinking. In the light of the outcome, the researchers recommended as follows: (1) focus on footwork drills competent skills game handlers collective or tactical skills and connect it with the tactical thinking and (2) the need to identify the causes of ambitious player’s sports teams

    Speech Enhancement via EMD

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    WOSInternational audienceIn this study, two new approaches for speech signal noise reduction based on the empirical mode decomposition (EMD) recently introduced by Huang et al. (1998) are proposed. Based on the EMD, both reduction schemes are fully data-driven approaches. Noisy signal is decomposed adaptively into oscillatory components called intrinsic mode functions (IMFs), using a temporal decomposition called sifting process. Two strategies for noise reduction are proposed: filtering and thresholding. The basic principle of these two methods is the signal reconstruction with IMFs previously filtered, using the minimum mean-squared error (MMSE) filter introduced by I. Y. Soon et al. (1998), or thresholded using a shrinkage function. The performance of these methods is analyzed and compared with those of the MMSE filter and wavelet shrinkage. The study is limited to signals corrupted by additive white Gaussian noise. The obtained results show that the proposed denoising schemes perform better than the MMSE filter and wavelet approach

    Supply optimization for a pulp and paper mill network

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    A real case of procurement planning of wood fiber between a paper mill and fiber suppliers, e.g. sawmills, is modelled and validated. Several sourcing options are available to the paper mill (in-house sawmills, external sawmills, trading sawmills, and partners). The model optimizes the choice of suppliers, determines the supply option (contract or spot market) and decides the quantities to order for each period as well as the contractual annual volume guarante

    Engineering process for capacity-driven web services

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    This paper presents a novel approach for the engineering of capacity-driven Web services. By capacity, we mean how a Web service is empowered with several sets of operations from which it selectively triggers a set of operations with respect to some run-time environmental requirements. Because of the specificities of capacity-driven Web services compared to regular (i.e., mono-capacity) Web services, their engineering in terms of design, development, and deployment needs to be conducted in a complete specific way. Our approach define an engineering process composed of five steps: (1) to frame the requirements that could be put on these Web services, (2) to define capacities and how these capacities are triggered, and last but not least link these capacities to requirements, (3) to identify the processes in term of business logic that these Web services could implement, (4) to generate the source code, and (5) to generate the capacity-driven Web Services Description Language (c-WSDL)

    Constraint handling strategies in Genetic Algorithms application to optimal batch plant design

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    Optimal batch plant design is a recurrent issue in Process Engineering, which can be formulated as a Mixed Integer Non-Linear Programming(MINLP) optimisation problem involving specific constraints, which can be, typically, the respect of a time horizon for the synthesis of various products. Genetic Algorithms constitute a common option for the solution of these problems, but their basic operating mode is not always wellsuited to any kind of constraint treatment: if those cannot be integrated in variable encoding or accounted for through adapted genetic operators, their handling turns to be a thorny issue. The point of this study is thus to test a few constraint handling techniques on a mid-size example in order to determine which one is the best fitted, in the framework of one particular problem formulation. The investigated methods are the elimination of infeasible individuals, the use of a penalty term added in the minimized criterion, the relaxation of the discrete variables upper bounds, dominancebased tournaments and, finally, a multiobjective strategy. The numerical computations, analysed in terms of result quality and of computational time, show the superiority of elimination technique for the former criterion only when the latter one does not become a bottleneck. Besides, when the problem complexity makes the random location of feasible space too difficult, a single tournament technique proves to be the most efficient one

    L' apport de différentes théories économiques à la problématique de la localisation des activités économiques : Une perspective historique sur la relation "territoire / investisseur".

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    Cet article identifie un ensemble de théories classico-historiques qui irriguent la théorie de la localisation des activités économiques, dont l'investissement ; ces théories ont tenté de déterminer les champs d'analyse territoriale que l'on retrouve dans les projets, les investissements et les entreprises. Dans cette logique de base et selon ces théories classiques, la localisation des investissements est liée à un ensemble de dispositifs dont le territoire module pour chaque reprise sa stratégie en raison des bouleversements économiques, des croisements et des abandons de projets d'investissement. De ce fait, les investisseurs se caractérisent par une motilité sûre et certaine et une flexibilité dans le raisonnement de recherche de territoires émergents porteurs de richesses et de ressources. Un territoire peut être vu et mesuré à partir de plusieurs points de mesure, même l'économie, la gouvernance, la société, les liens géographiques, les bases historiques, la démographie, et ainsi de suite. En outre, on a tenté, entre autres, de définir le territoire par plusieurs sens, à savoir la notion endogène et exogène, la pluralité des partenaires, les attributs du territoire, et un marché de confrontation. A la fin de cet article, nous présentons les quatre déterminants de la localisation des investissements, à savoir le climat d'investissement, les avantages de l'efficacité et de l'efficience, les ressources de toute nature et un territoire attractif en termes de résidents.   &nbsp
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