Search results for "logiques"
showing 10 items of 135 documents
Démarche statistique pour la sélection des indicateurs par Random Forests pour la surveillance de la qualité des sols
2013
The volume of data, and the large number of biological variables to be tested (one hundred), require analytical techniques, such asRandom Forests, which can overcome the problem of multi-colinearity for the selection of indicators, sensitive to various factors.Random Forests methodology is appropriate for the selection of the most discriminant variables. So, we searched for the best wayto select them, by bringing together all biological variables, representing the Microflora and Fauna. This approach focuses on impactindicators from the Bio2 program, indicators of flora and indicators of accumulation (snails) were not included.This work has been implemented on the three factors of discrimina…
La Prise en Compte de l'Approche Expérientielle dans l'Analysedes Logiques de Consommation du Spectacle Sportif
2005
PREVISION JOURNALIERE DES POLLENS SUR LE TERRITOIRE NATIONAL FRANÇAIS, AVEC UN OBJECTIF D'INFORMATION SANITAIRE DES POPULATIONS ALLERGIQUES
2008
At present, 16% of French people suffer from allergies to one or several pollens. The corresponding symptoms can be presented as under benign form (rhinitis, conjunctivitis, cough) as under much more serious form : asthma. Forecast of the starting date of an allergic exposure risk to pollens is necessary from a sanitary and preventive standpoint. Forecast has to be more precisely as possible in order to begin anti-allergic treatments at appropriate moment, with a view of effectiveness and reduction of the costs due to this disease. The present study, taking place in all the French territory, concerns four pollen taxa among the most allergenic : ash, birch, grasses and ragweed. This work com…
M'as-tu vu ?
2022
Apport d'un formalisme psychologique à la modélisation des préférences individuelles. Application aux choix d'itinéraires pédestres
2007
With the increasing need for a sustainable mobility, pedestrian movement analysis lately increased. In an attempt to get a more detailed knowledge of urban pedestrian movement, we intend to model the pedestrian's route choices. Our first approach is based on simple economic models, the discrete choice models. A psychological theory is added in the process in order to improve the pedestrian behaviour simulation. Results show that psychological formalisms are useful for individual choices' modelling. For this reason they could be used more systematically in the framework of urban mobility
Aspects typo-chronologiques et archéométriques de la céramique africaine sur le territoire de Cignana (Naro, AG, Sicile)
2017
Ce projet de recherche se fonde sur une étude typologique et archéométrique des matériaux d’époque romaine-impériale collectés pendant les prospections, surtout les céramiques africaines importées en Sicile entre la fin du Ier et le VIIe siècle apr. J.C. On ne va pas se concentrer sur une seule classe de céramique mais on va analyser globalement tous les objets manufacturés (amphores, sigillées, vaisselles culinaires, communes, lampes) en adoptant une approche diachronique correspondant à l’entière période de circulation de ces céramiques. L’objectif est de reconstruire les contacts économiques entre les deux provinces et individualiser l’origine des différentes productions. Nous allons ess…
Ethics in military organisations : implementation in the battlefield and lessons for management sciences
2016
This research questions the idea of military ethics. Our work uses an analytical framework combining three different disciplines: Ethics of care, developed in moral philosophy, Stakeholder theory, from business ethics, New institutionalism theory, from management science. This framework is then applied on two different research fields: the first one deals with the study of battles where ethical stakes were particularly high: the battle of Alger, the Iraqi war, the Srebrenica battle.The second one is qualitative interviews with officers coming back from the battlefield: 10 US officers from the Iraqi conflict and 7 French militaries from Afghanistan. These two research fields are completed by…
Torulaspora delbrueckii: aplicaciones tecnológicas y aislamiento de genes de respuesta a estrés.
2005
Durante los últimos años la producción de masas congeladas para bollería ha experimentado un notable incremento. La calidad de estos productos está lejos de la que se obtiene a partir de masas frescas Esto es debido a la sensibilidad al proceso de congelación y descongelación de S. cerevisiae y a la reducción de su capacidad fermentativa durante el almacenamiento. Si las masas congeladas son azucaradas el problema es todavía mayor. En la elaboración de masas dulces se utiliza hasta un 30% de azúcar provoca una fuerte reducción de la actividad de agua generando ambientes de alta presiones osmóticas. Como consecuencia de todo esto el tiempo de fermentación de estas masas se prolonga y el volu…
Original strain energy density functions for modeling of anisotropic soft biological tissue
2017
This thesis has focused on the construction of strain energy densities for describing the non-linear behavior of anisotropic materials such as biological soft tissues (ligaments, tendons, arterial walls, etc.) or fiber-reinforced rubbers. The densities we have proposed have been developed with the mathematical theory of invariant polynomials, particularly the Noether theorem and the Reynolds operator. Our work involved two types of anisotropic materials, the first with a single fiber family and the second with a four-fiber family. The concept of polyconvexity has also been studied because it is well known that it plays an important role for ensuring the existence of solutions. In the case o…
Contribution à la compréhension des causes des comportements socialement responsables : l'étude des contrats psychologiques au sein d'une entreprise …
2014
Stakeholders require companies to include in their management process social responsibility criteria such as health and safety and the fight against discrimination etc. Standards of CSR or sustainable development (ISO 26000, 14001, OHSAS 18001, 1000 AA ...) are many and reflect the issues and difficulties in its operationalization. NGO‟s criticisms reveal, among other things, the lack of commitment of employees who are at the very heart of the company's shares. This work is part of doctoral research determining causes of socially responsible behavior of employees. We discuss our research in terms of the Employment Relationship-Organization-and inscribe our work in the concept of psychologic…