Search results for "environnemen"
showing 10 items of 328 documents
Politiques publiques, interactions et enjeux environnementaux
2012
Compte rendu et analyses, Séminaire PUCA, 22 novembre 2012, Paris La Défense.
La métallurgie du fer au Pays Basque durant l'Antiquité. Etat des connaissances dans la vallée de Baigorri (Pyrénées-Atlantiques)
2003
A study of the ancient metallurgy of iron was committed in the Basque Country, in the Baigorri valley, a rich sector whose resources were exploited before Antiquity and sometimes until the century XXth. The prospecting and the investigations undertaken revealed the existence of two mining and metallurgical districts. Their chronology is attested between the end of the Iron age and the century IVth p.C. The mines, the coal-scuttles and the métallurgie sites of the two centres of production were identified, while four workshops of reduction were the subject of a particular archaeological study. These results were confronted with the environmental data resulting from the palynological and geoc…
Structures de déformation induites par surpressions de fluide dans les environnements sous-glaciaires et marin profonds : implications paléoenvironne…
2014
Soft-sediment deformation structures (SSDs) occur in unconsolidated sediments, during or shortly after deposition. SSDs are abundant in subglacial and deep-marine environments because of the development of fluid overpressure. Case studies of these two sedimentary environments were used (1) to reconstruct palaeoenvironments from SSDS, and (2) to define the impacts of SSDS on glacial morphologies and (3) petrophysical properties.(1) Analyses of strain regimes, deformation mechanisms, and chronologies in SSDs served to improve palaeoenvironmental reconstructions. These structures were used as proxys to estimate variations of ice flow velocities, ice thickness, meltwater production, and positio…
Evaluation of the energy and environmental benefits of policies to support research and development
2022
Environmental innovations can play a central role in the fight against climate change. Also, the commitment of the international community in favor of the climate is reflected in particular by the implementation of policies for these innovations. This thesis studies the process in which these innovations appear in France, in particular the effects of environmental regulations, as well as their consequences on company performance.The challenges of this thesis are threefold: (i) contribute to a better understanding of the concept of environmental innovation; (ii) determine the strategic behavior of companies in terms of the dissemination of environmental innovations; (iii) develop an empirica…
Contribution of vibrational modalities for navigation in virtual environments
2016
The virtual environment navigation may induces the simulator sickness depending on conditions and user’s profile. The potential virtual reality multimodality may provide solutions to these problems while improving the sense of presence. In this context, the objective of this research is to determine what is the impact of vibrational modalities for navigation in virtual environments on the simulation.A taxonomy of navigation methods is proposed. It results in 4 types, specific egocentric, specific exocentric, abstract egocentric and abstract exocentric. First we simulate rumble strip vibrations during a driving simulation. The experimentation exposed that these vibrations make driver more aw…
Les vies étudiantes : tendances et inégalités
2016
National audience; On recense aujourd'hui plus de 2,4 millions d'étudiants en France. Une population dont les effectifs ne cessent de croître et qui se révèle être de plus en plus diversifiée. Se référer à « l'étudiant moyen » n'a donc pas plus de sens aujourd'hui qu'il n'en avait lors de la mise en place de la première enquête Conditions de vie des étudiants en 1994. Il en est de même de la vie étudiante qu'il est difficile de réduire à quelques clichés. Le seul fait d'être étudiant est loin d'homogénéiser les conditions de vie d'un public aux caractéristiques, aux expériences et aux attentes de plus en plus diversifiées. Le sexe, l'âge, la formation suivie, le parcours antérieur, la situa…
Combiner les caractéristiques visuelles et sonores du cadre de vie pour modéliser la satisfaction résidentielle : une application basée sur des métri…
2019
National audience; La satisfaction du cadre de vie est un déterminant majeur de la satisfaction résidentielle, dont l’impact sur la mobilité résidentielle, le bien-être et la santé n’est plus à démontrer (Tannier et al., 2016 ; Leslie et Cerin, 2008). Parmi les composantes physiques du cadre de vie, les caractéristiques visuelles et sonores sont relativement essentielles, mais leur influence simultanée sur la satisfaction du cadre de vie a jusqu’ici été peu analysée, et l’a été de manière très partielle (Gille et al., 2017). Dans un contexte de planification et de développement urbain et régional, il est donc aujourd’hui difficile de prendre en compte cette dimension perceptive, malgré la d…
Are control of extracellular acid-base balance and regulation of skeleton genes linked to resistance to ocean acidification in adult sea urchins?
2020
SCOPUS: ar.j
An account on the non-malacostracan crustacean fauna from the inland waters of Crete, Greece, with the synonymization of Arctodiaptomus piliger Brehm…
2019
The Mediterranean bioregion is widely recognised as a biodiversity hotspot and its inland waters are among the species richest ecosystems of the northern hemisphere. However, the extent of such biodiversity has not been totally unravelled, especially in the Mediterranean islands. Here we present a first account of the crustaceans inhabiting 21 permanent and temporary ponds in Crete, the largest of the Greek islands and the fifth largest island in the Mediterranean Sea. The ponds, sampled between 2009 and 2018, cover all the island surface even though their number cannot be considered exhaustive to represent the entire non-malacostracan fauna of the island. Nevertheless, 46 taxa were identif…
Prehistoric Settlement and Population in the Madonie Mountains. New Data from the Archaeological Survey
2010
The aim of the Madonie research project is to analyse mobility strategies and the use of a mountainous territory by relating geomorphologic features, raw material sources and landscape to the prehistoric settlement. For this purpose we planned an intensive and systematic survey of sample areas, selected on geo-morphological, altimetric and archaeological criteria, correlated to a palaeoenvironmental investigation based on the study of palynological sequence samples coming from wet areas of the Madonie territory and from archaeological deposits. Le projet de recherche sur la Madonie analyse les stratégies de mobilité et l’exploitation du territoire de montagne, en reliant les caractéristique…