Search results for "ARISA"
showing 10 items of 310 documents
Agir en fonctionnaire de l'État, de façon éthique et responsable
2010
La réforme des concours de l'enseignement a introduit une nouvelle épreuve commune à l'ensemble des filières. Désormais, les candidats sont aussi évalués sur leur capacité future à « agir en fonctionnaire de l'État de façon éthique et responsable ». En tant que futur professeur fonctionnaire, le candidat doit montrer qu'il sera capable de transmettre les principes et les valeurs de la République. Il doit aussi connaître l'organisation générale du système éducatif et des établissements scolaires. L'épreuve peut donc devenir bien vite déroutante pour celui qui ignorerait ces règles et leur articulation avec de nombreux travaux issus des sciences de l'éducation ou des sciences humaines et soci…
Mapping of landfills using time-domain spectral induced polarization data: the Eskelund case study
2012
This study uses time-domain induced polarization data for the delineation and characterization of the former landfill site at Eskelund, Denmark. With optimized acquisition parameters combined with a new inversion algorithm, we use the full content of the decay curve and retrieve spectral information from time-domain IP data. Thirteen IP/DC profiles were collected in the area, supplemented by el-log drilling for accurate correlation between the geophysics and the lithology. The data were inverted using a laterally constrained 1D inversion considering the full decay curves to retrieve the four Cole-Cole parameters. For all profiles, the results reveal a highly chargeable unit that shows a ver…
Controverses autour du livre de Pierre Bourdieu "La domination masculine"
1999
International audience
Impact of inoculation with the phytostimulatory PGPR Azospirillum lipoferum CRT1 on the genetic structure of the rhizobacterial community of field-gr…
2009
International audience; The phytostimulatory PGPR Azospirillum lipoferum CRT1 was inoculated to maize seeds and the impact on the genetic structure of the rhizobacterial community in the field was determined during maize growth by Automated Ribosomal Intergenic Spacer Analysis (ARISA) of rhizosphere DNA extracts. ARISA fingerprints could differ from one plant to the next as well as from one sampling to the next. Inoculation with strain CRT1 enhanced plant-to-plant variability of the ARISA fingerprints and caused a statistically significant shift in the composition of the indigenous rhizobacterial community at the first two samplings. This is the first study on the ecological impact of Azosp…
Ultrafast optics in coherently spinning molecules
2020
This thesis reports on the study of unidirectional rotation of molecules and focuses on the rotational Doppler effect occuring in the course of third-harmonic generation in coherently spinning molecules.The rotational Doppler effect appears when a circularly polarized wave interacts with an anisotropic rotating object. During the interaction, an exchange of angular momentum and energy between the field and the object occurs, leading to a frequency shift of the wave. In this work, the frequency shift of the third-harmonic generated in unidirectionaly rotating molecules has been observed. An anlytical model developped in the mansucript forsees four kinds of frequency shifts depending on the m…
Problematics of Bonds in Hugh MacDiarmid's Poetry
2012
Hugh MacDiarmid is considered the most important Scottish poet of the 20th century. He is mostly celebrated for the Scots lyrics he wrote in the 1920s and his long poem A Drunk Man Looks at the Thistle, published in 1926. Because of their fragmentation, the poems of the Thirties, most of which were part of the unpublished project Mature Art, and In Memoriam James Joyce (1955), have not attracted the same critical attention. However, they represent the culmination of a very complex stylistic crisis that this study offers to analyse thanks to the question of bonds, especially problematic bonds. The poetry portrays humanity torn by social division, treason and death, but it deals with loss too…
Régulation et précarisation : l'exemple des femmes de chambre
2007
07020 - 13 p.; Cette communication souligne le rôle des institutions du marché du travail (employeurs, syndicats, État) dans les choix faits par les hôtels français en matière de gestion et conditions de travail. L'inégal accès à un poste stable à temps plein révèle un dualisme croissant dont sont victimes les femmes de chambre.
Development of electrodes materials for SOFC fed by natural gas / biogas. Applications to "pre-reforming" and "single-chamber" concepts
2010
Solid Oxide Fuel Cell is a device for “clean” electricity production from chemical energy. The new configuration called “single-chamber” seems to be very attractive with several advantages over bi-chamber conventional configuration: easier manufacturing, lowering of working temperature, possible use of hydrocarbons as fuel… Such configuration involves the development of new electrode materials satisfying new requirements. The evaluation of 7 potential cathode materials through several characterizations has shown that a compromise has to be found since one material does not exhibit all the requested features. A library of 15 supported catalysts (3 metals and 5 supports) was developed. These …
Etude par spectroscopies de RMN 23Na, 31P et 1H : effets de la teneur en sel (NaCl) dans des matrices alimentaires
2008
The reduction of salt (NaCl) content in food has become a matter of public health. However, the multiple functions of salt in food make the reduction of its content difficult. The aim of this work was to demonstrate the applicability of NMR innovative techniques in order to characterise the mobility of sodium ions (distinction between ‘free’ and ‘bound’ sodium), to bring a better understanding of the role of salt in the organisation of the food matrix (in particular phosphorous molecules in dairy systems) and to study impact of salt on the mobility of aroma compounds. In a first step, the 23Na NMR study of iota-carrageenan gels validated the quantification of total sodium (Single-Quantum, S…
Developing Lower secondary education: a rural issue and challenge for sub-saharan Africa
2010
The ongoing progresses of coverage of primary education in Sub-Saharan African Countries are inevitably to impact lower secondary education in a significant manner. Beyond the need for all countries to identify a global policy to deal with the problem, it is important to understand that expansion of coverage of lower secondary education will concern rural populations since coverage is generally already relatively high in cities while it is lagging noticeably in rural settings; many schools will need to be built and operate in a near future. A basic characteristic of rural schools is that most of them enroll only a limited number of students and, in current circumstances tend to cost signifi…