134 research outputs found
Archéologie et espaces (protohistoire, Antiquité)
Philippe Boissinot, maître de conférencesIsabelle Carrère, ingénieur d’étudesPhilippe Marinval, chargé de recherche au CNRS Approches socioanthropologiques de la consommation des sociétés anciennes Enseignement suspendu durant l’année universitaire 2007-2008 Jean-Pierre Albert, directeur d’étudesPhilippe Boissinot, maître de conférences La question de l’identité culturelle entre ethnologie et archéologie Après une introduction des deux animateurs du séminaire précisant les enjeux théoriques d..
Draft genome sequence of Xanthomonas sacchari strain LMG 476
We report the high-quality draft genome sequence of Xanthomonas sacchari strain LMG 476, isolated from sugarcane. The genome comparison of this strain with a previously sequenced X. sacchari strain isolated from a distinct environmental source should provide further insights into the adaptation of this species to different habitats and its evolution. (Résumé d'auteur
A model structure for the Goldman-Millson theorem
By a result of Vallette, we put a sensible model structure on the category of
conilpotent Lie coalgebras. This gives us a powerful tool to study the
subcategory of Lie algebras obtained by linear dualization, also known as the
category of pronilpotent Lie algebras. This way, we recover weaker versions of
the celebrated Goldman-Millson theorem and Dolgushev-Rogers theorem by purely
homotopical methods. We explore the relations of this procedure with the
existent literature, namely the works of Lazarev-Markl and
Buijs-F\'elix-Murillo-Tanr\'e.Comment: 20 pages. (v2) fixed formatting of abstract on arXiv, the core text
was not touche
Learning-Based Dequantization For Image Restoration Against Extremely Poor Illumination
All existing image enhancement methods, such as HDR tone mapping, cannot
recover A/D quantization losses due to insufficient or excessive lighting,
(underflow and overflow problems). The loss of image details due to A/D
quantization is complete and it cannot be recovered by traditional image
processing methods, but the modern data-driven machine learning approach offers
a much needed cure to the problem. In this work we propose a novel approach to
restore and enhance images acquired in low and uneven lighting. First, the ill
illumination is algorithmically compensated by emulating the effects of
artificial supplementary lighting. Then a DCNN trained using only synthetic
data recovers the missing detail caused by quantization
Evidence for PAH Removal Coupled to the First Steps of Anaerobic Digestion in Sewage Sludge
Anaerobic degradation of polycyclic aromatic hydrocarbons has been brought to the fore, but information on removal kinetics and anaerobic degrading bacteria is still lacking. In order to explore the organic micropollutants removal kinetics under anaerobic conditions in regard to the methane production kinetics, the removal rate of 12 polycyclic aromatic hydrocarbons was measured in two anaerobic batch reactors series fed with a highly loaded secondary sludge as growth substrate. The results underscore that organic micropollutants removal is coupled to the initial stages of anaerobic digestion (acidogenesis and acetogenesis). In addition, the organic micropollutants kinetics suggest that the main removal mechanisms of these hydrophobic compounds are biodegradation and/or sequestration depending on the compounds
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