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L'enfant acteur et auteur de santé publique, une recherche-action en classe maternelle à Herchies
Francomme, Olivier;
Psicologia Escolar e Educacional , 2011, DOI: 10.1590/S1413-85572011000100016
Abstract: in this study we aim at showing how the collective work of a researcher, working with issues of "health of the student," improves the living conditions and safety of children in a nursery school. the involvement of children in the initial process of an action research allowed the awareness to health problems. the cooperative form instituted after a few years in school and nursery class in particular, allowed a "natural" appropriation by the children of a domain that is sensitive to them. we aim at contributing to the education of all members of the school community, educational community, going beyond the strict framework, by inserting new national education programs. numerous health problems addressed in this work were started by children, teachers and parents. the demand for continuing education has been a constant for the relevance of this work . it only makes sense if it inscribes in the living spaces of the children in school, in families, and other social spaces.
La Forme Scolaire et la Pédagogie Freinet, à l’épreuve de l’éducation Comparée. Sur le livre d’Yves Reuter et autres études longitudinales.
Olivier Francomme
Educa??o : Teoria e Prática , 2010,
Abstract: Cet article a pour but d’analyser quelques rares recherches dans le domaine de l’éducation, menées en France sur “la forme scolair”, et plus particulièrement celle de la pédagogie Freinet. Dans les sciences de l’éducation, il est actuellement de bon ton demarginaliser la dimension pédagogique au profit d’autres approches: cognitiviste, didactique, … Pourtant il est indéniable qu’elle a un effet à la fois sur les apprentissages scolaires, mais encore dans l’acquisition de compétences moins valorisées par le système éducatif fran ais.
Définition d'une structure adaptative de réseau local sans fil à consommation optimisée
Sabri Chebira,Gilles Mercier,Jackson Francomme
Computer Science , 2008,
Abstract: The strong growth of low rate wireless personal area networks (LR-WPAN), leads us to consider the autonomy problems, thus node lifetime in a network, knowing that the power supplies replacement is often difficult to realize. The inherent mobility in this type of equipment is an essential element. It will provide routing constraints, so a complex problem to solve. This article provides work lines to assess the performance of such a network in terms of energy consumption and mobility. The objectives are contradictory; it will necessarily find a compromise. In addition, if we want to guarantee a maximum delay for the transmitted messages, possibility offered by the IEEE 802.15-4 standard, another compromise necessitate a strictly fixed structure and a fully mobile structure. Therefore, we present a quantization of the energy cost related to the desired data rate and compared to the sleep duration of nodes in the network. Then, we open reflexion lines to find the best compromise: consumption / mobility / guaranteed deadlines, in suggesting an adaptive network structure from a concept of MANET.
évaluation d'une application de transmission d'images médicales avec un réseau sans fil
Jackson Francomme,Gilles Mercier,Sabri Chebira
Computer Science , 2008,
Abstract: We offer a platform for database consultations and/or biomedical images exchanges, adapted to the low rate wireless transmission, and intended for general practitioners or specialists. The goal can be preventive, diagnostic and therapeutic. it Concerns specialties such as radiology, ultrasound, the anatomical pathology or endoscopy. The main features required in such a context are to adjust the data compression of both the specific needs of telemedicine and limited capabilities of wireless communication networks. We present our approach in which we have set out criteria on Biomedical images quality, compressed by the wavelet method to retain all the necessary information for an accurate diagnosis, and determined the characteristics of a wireless network with minimal performances for the transmission of these images within constraints related to the modality and the data flow, in this case Wifi based on the IEEE 802.11 standard. Our results will assess the capacity of this standard in terms of speed, to transmit images at a rate of 10 frames per second. It will be necessary to quantify the amount of information to add to the image datas to enable a transmission in good conditions and the appropriate modus operandi.
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