Search results for "35"
showing 10 items of 2413 documents
La gestion des betteraves adventices résistantes à un herbicide: une approche par simulation
2007
National audience; Les variétés de betteraves sucrières génétiquement modifiées (GM) résistantes à un herbicide sont, a priori, intéressantes dans des champs fortement infestés par la betterave adventice. Cependant, la montée à fleurs de ces betteraves GM peut entraîner l’apparition d’individus résistants, via la dispersion de pollen. Nous avons développé et utilisé le modèle GENESYS-Betterave pour simuler, à l’échelle d’une petite région agricole, l’impact des pratiques culturales sur la dispersion du transgène. Il permet d'identifier des stratégies pour contrôler les adventices et limiter l'apparition de populations résistantes en zone de production de betterave sucrière. L’utilisation de…
Typology of exogenous organic matters based on chemical and biochemical composition to predict potential nitrogen mineralization
2010
Our aim was to develop a typology predicting potential N availability of exogenous organic matters (EOMs) in soil based on their chemical characteristics. A database of 273 EOMs was constructed including analytical data of biochemical fractionation, organic C and N, and results of N mineralization during incubation of soil–EOM mixtures in controlled conditions. Multiple factor analysis and hierarchical classification were performed to gather EOMs with similar composition and N mineralization behavior. A typology was then defined using composition criteria to predict potential N mineralization. Six classes of EOM potential N mineralization in soil were defined, from high potential N minerali…
Contextualization of archaeological information using augmented photospheres, viewed with head-mounted displays.
2019
Photospheres, or 360°
Agustín en España (siglos XVI y XVII), aspectos de política, historia y cultura
2013
Résumés des articles en espagnol, français et anglais.. - Numéro de : "Criticón", 2013, n°118, ISSN 0247-381X. Textes disponibles en ligne : http://criticon.revues.org/277; International audience
Agustín en España (siglos XVI y XVII) : aspectos de estética
2010
Résumés des articles en espagnol, français et anglais. - Numéro de : "Criticón", 2009, n°107, ISSN 0247-381X; International audience
Universalité de l'exil ? (Edward W. Said, "Réflexions sur l'exil et autres essais")
2013
International audience; no abstract
Edward W. Said. Une conscience inquiète du monde
2014
DO internat Axe 4; International audience; La reconnaissance d'Edward W. Said (1935-2003) comme fondateur de ce que l'on appelle aujourd'hui les postcolonial studies repose à la fois sur l'extraordinaire fécondité de ses recherches et sur un malentendu, en tous les cas sur une lecture très univoque d’une oeuvre qui pourtant ne l’est guère. L’impact considérable de cet auteur sur la façon dont se perçoivent les sociétés contemporaines ne saurait s’expliquer par la simple prise de conscience d’un rapport de subordination de l’Orient par l’Occident à quoi l’on a pu être tenté de réduire son discours. L’hypothèse qui sous-tend le volume que nous proposons est que la puissance d’intervention de …
Comparison of British and French expatriate doctors’ characteristics and motivations
2012
Objective The aim of this study was to analyse the migration of doctors between the UK and France, in an attempt to identify the reasons for these migrations. Design This was a cross-sectional study conducted using a self-completed questionnaire. Setting The questionnaire was sent to all British doctors practising in France and to all French doctors practising in the UK. Participants The doctors were identified, thanks to official data of the National Medical Councils. There were 244 French doctors practising in the UK and 86 British doctors practising in France. Outcome measures A questionnaire was specifically developed for the study to determine the reasons why doctors moved to the other…
Rebuilding a Cluster while protecting knowledge within Low-medium-tech supplier SMEs: A Spanish and French comparison
2021
International audience; Most of SMEs are engaged in open innovation practices, but they do not benefit from open innovation or from patenting in the same way as larger firms do. At the same time SMEs, as territorialized suppliers, play a crucial role within evolving regional specialization. In this context the purpose of our study is to examine how low and medium technology supplier SMEs learn and organize themselves at a territorial level to address the challenge of IP protection in an open innovation paradigm. We used a qualitative method with a longitudinal multi-case study involving 27 companies with a historical lance to compare the territorial dynamics of knowledge protection within c…
Acoustic properties of plates with unevenly distributed macro perforations backed by woven meshes
2012
A hybrid model describing the acoustic properties of plates with macro-perforations that can be unevenly distributed on the plate surface and backed by woven or precision woven meshes with microscopic perforations is proposed. The plate perforations may be of circular or rectangular shapes. Since the perforated plate may not necessarily be considered as an equivalent fluid, its surface impedance is calculated by the Maa model [Noise Control Eng. J. 29, 77-84 (1987)], whereas the Johnson-Champoux-Allard model [J. Appl. Phys. 70, 1975-1979 (1991)] is used for the mesh. It is observed that the absorption of the carrying plate seems to depend on the hydraulic diameter of the perforations and no…