Search results for "PEI"
showing 10 items of 367 documents
Laser ablation of a turbid medium : Modeling and experimental results.
2006
International audience; Q -switched Nd:YAG laser ablation of a turbid medium (paint) is studied. The optical properties (absorption coefficient, scattering coefficient, and its anisotropy) of a paint are determined with a multiple scattering model (three-flux model), and from measurements of reflection-transmission of light through thin layers. The energy deposition profiles are calculated at wavelengths of 532 nm and 1.064 $\mu$m. They are different from those described by a Lambert-Beer law. In particular, the energy deposition of the laser beam is not maximum on the surface but at some depth inside the medium. The ablated rate was measured for the two wavelengths and compared with the en…
La gravure, un pan méconnu de l'œuvre d'Émile Friant
2011
International audience; Alors que le peintre demeure indifférent aux mouvements d'avant-garde, le graveur se révèle peu à peu au tournant du xxe siècle. On ne saurait lier le " déclin " du peintre et l'émergence du graveur, mais on constate que la production gravée de Friant se développe réellement après le passage du siècle. Entre 1883 et 1931, plus précisément à partir de 1904, l'artiste produit un peu plus de soixante-dix sujets différents. Au début des années 1880, Émile Friant évolue dans des sphères où il a pu trouver ses initiateurs : Victor Prouvé (1858-1943), les graveurs Pierre-Georges Jeanniot (1848-1934) et Eugène Decisy (1866-1936) et le prix de Rome de gravure Charles Waltner …
Du souvenir de la Commune de Paris à l'expérience de la Grande Guerre : Luce et la peinture, d'histoire.
2010
La mediación de consumo en España: ¿Una alternativa viable? La esperada transposición de la directiva relativa a la resolución alternativa de litigio…
2017
En este artículo se reflexiona sobre la viabilidad de la mediación como mecanismo alternativo de resolución de conflictos en el marco normativo constituido por la Directiva 2013/11/UE, de 21 de mayo y el Reglamento 524/2013. Se analizan las razones y consecuencias de la exclusión de la mediación de consumo de la Directiva sobre mediación en asuntos civiles y mercantiles y la sumisión a la Directiva 2013/11/UE; así como los factores que avalan o, por el contrario, dificultan la mediación de consumo. La actualidad del tema deriva de la próxima aprobación de la Ley de resolución alternativa de conflictos de consumo por la que se procederá a la transposición de la Directiva 2013/11 al Derecho i…
Perfluoroalkyl substances in the Ebro and Guadalquivir river basins (Spain).
2015
Mediterranean rivers are characteristically irregular with changes in flow and located in high population density areas. This affects the concentration of pollutants in the aquatic environments. In this study, the occurrence and sources of 21 perfluoroalkyl substances (PFASs) were determined in water, sediment and biota of the Ebro and Guadalquivir river basins (Spain). In water samples, of 21 analytes screened, 11 were found in Ebro and 9 in Guadalquivir. In both basins, the most frequents were PFBA, PFPeA and PFOA. Maximum concentration was detected for PFBA, up to 251.3ngL-1 in Ebro and 742.9ngL-1 in Guadalquivir. Regarding the sediments, 8 PFASs were detected in the samples from Ebro an…
Oleuropein ameliorates acute colitis in mice.
2011
Oleuropein, the major secoiridoid in olive tree leaves, possesses a wide range of health promoting properties. It has recently been shown to exhibit anti-inflammatory activity. We have evaluated the effect of oleuropein on dextran sulfate sodium (DSS)-induced experimental colitis in mice in order to provide insight into its mechanisms of action. Oral administration of oleuropein notably attenuated the extent and severity of acute colitis while reducing neutrophil infiltration; production of NO, IL-1β, IL-6, and TNF-α; expression of iNOS, COX-2, and MMP-9; and the translocation of the NF-κB p65 subunit to the nucleus in colon tissue. In LPS-stimulated peritoneal macrophages, the oleuropein m…
Replicating phages in the epidermal mucosa of the eel (Anguilla anguilla)
2015
In this work, we used the eel (Anguilla anguilla) as an animal model to test the hypothesis of Barr et al. (2013a,b) about the putative role of the epidermal mucosa as a phage enrichment layer. To this end, we analyzed the microbial content of the skin mucus of wild and farmed eels by using a metagenomic approach. We found a great abundance of replicating phage genomes (concatemers) in all the samples. They were assembled in four complete genomes of three Myovirus and one Podovirus. We also found evidences that ΦKZ and Podovirus phages could be part of the resident microbiota associated to the eel mucosal surface and persist on them over the time. Moreover, the viral abundance estimated by …
Relacion y pintvra verdadera, de vn prodigioso monstruo, en forma de pez, que se ha aparecido en la Villa de Rota, en los principios de este año 1669…
Grav. a la port Sign.: [ ]2
Les images de la vie terrestre de la Vierge dans l'art mural (peintures et mosaïques) en France et en Italie : des origines de l’iconographie chrétie…
2012
This thesis is devoted to wall images of the Virgin’s earthly life, an iconographic sequence composed of the young Mary’s history and episodes from Christ’s life which are related to the Virgin, until Pentecost. This research comes within the extended framework from the early Christian art to the Council of Trent. It is based on an abundant iconographic documentation which includes more than 2300 pictures, wall paintings and mosaics, preserved in France and Italy. The first part of the thesis is dedicated to the quantitative analysis of the iconographic documentation, according to a triple point of view. A thematic analysis identifies three phases in the chronological sequence of the Virgin…
baz1b loss-of-function in zebrafish produces phenotypic alterations consistent with the domestication syndrome
2023
BAZ1B is an ubiquitously expressed nuclear protein with roles in chromatin remodelling, DNA replication and repair, and transcription. Reduced baz1b expression disrupts neuronal and neural crest development. Variation in the activity of baz1b has been proposed to underly morphological and behavioural aspects of domestication through disruption of neural crest development. Knockdown of baz1b in Xenopus embryos and Baz1b loss of function (LoF) in mice leads to craniofacial defects consistent with this hypothesis. We generated baz1b LoF zebrafish using CRISPR/Cas9 gene editing to test the hypothesis that baz1b regulates behavioural phenotypes associated with domestication in addition to cranio…