Paléoanthropologie et préhistoire, 1983-2005

Publications (juin 2011-juin 2012) Coppens Y., Préface, in London J., Avant Adam ; format numérique, Libella, octobre 2011. Coppens Y., Leçon inaugurale au Collège de France [1983] : réédition électronique, Collège de France. Coppens Y., Préface in Laporte G., Voyage au pays du temps qui court, édition À nos pages, 2011, 11-15. Coppens Y., Préface in L’identité retrouvée, Les reconstructions anatomiques d’Elisabeth Daynès, Musée départemental de préhistoire d’Ile de France, 2011, 10. Coppens ..

Préface

Très aimablement sollicité par Jean-Philip Brugal pour introduire les actes de ce colloque international (Q5) sur le Quaternaire, ses limites et ses spécificités, colloque dont les sessions se sont tenues du 1er au 3 février 2006 au Muséum national d’Histoire naturelle de Paris, je saisis l’honneur qui m’est fait pour dire d’entrée mon attachement au concept de Quaternaire. Comme il s’agit d’un temps particulier, dont la définition échappe à la règle de définition des autres époques, il est n..

Paléoanthropologie et préhistoire (1983-2005)

Recherche Arrivant au terme de mon mandat de sept ans de président du Conseil scientifique international de Lascaux, j’ai organisé à l’Unesco, les 17 et 18 octobre 2017 un colloque intitulé « Lascaux la belle ; 7 années de recherche et de veille », rendant au ministère de la Culture une grotte en parfait état de conservation dans une atmosphère apaisée (elle m’avait été confiée en 2010 au moment d’une menace de l’Unesco de placer la grotte sur la liste du patrimoine mondial en péril). Présida..

A scavenging double mask to reduce workplace contamination during mask induction of inhalation anesthesia in dogs

<p>Abstract</p> <p>Background</p> <p>Workplace contamination by the use of volatile anesthetic agents should be kept to a minimum if a potential health hazard is to be minimised. Mask induction of animals is a common procedure. The present study investigates the efficiency of a novel scavenging double mask in reducing waste gas concentrations in the breathing zone of the anesthetist performing this procedure.</p> <p>Methods</p> <p>Twelve beagle dogs (ASA I) undergoing general anesthesia for a dental procedure were intravenously premedicated with medetomidine and butorphanol (10 μg/kg and 0.2 mg/kg). Anesthesia was induced via a custom-made scavenging mask using isoflurane in oxygen. In six dogs (group S), scavenging from the mask was performed whereas in six other dogs (group NS) the scavenging function was disabled. Isoflurane concentration was continuously measured with photoacoustic spectroscopy at the level of the shoulder of the anesthetist before and during mask induction and additionally during intubation. Statistical analysis was performed with a Student t- test and a Mann-Whitney U test (p < 0.05 for significance).</p> <p>Results</p> <p>The mean isoflurane concentration during baseline (premedication) was 1.8 ± 0.8 ppm and 2.3 ± 0.6 ppm in group S and NS respectively. This increased during mask induction to 2.0 ± 0.8 ppm and 11.2 ± 6.0 ppm respectively (p < 0.01). The maximum isoflurane concentration ranged from 0.7 ppm to 2.8 ppm and from from 8.3 ppm to 43.7 ppm in group S and NS respectively.</p> <p>Conclusion</p> <p>This double mask can be used to induce inhalation anesthesia in dogs. Scavenging from the mask significantly decreases the amount of waste anaesthetic gas concentrations in the breathing zone of the anesthetist. Therefore, such a system can be recommended whenever induction or maintenance of general anesthesia by mask is considered.</p

PLAZA 4.0 : an integrative resource for functional, evolutionary and comparative plant genomics

PLAZA (https://bioinformatics.psb.ugent.be/plaza) is a plant-oriented online resource for comparative, evolutionary and functional genomics. The PLAZA platform consists of multiple independent instances focusing on different plant clades, while also providing access to a consistent set of reference species. Each PLAZA instance contains structural and functional gene annotations, gene family data and phylogenetic trees and detailed gene colinearity information. A user-friendly web interface makes the necessary tools and visualizations accessible, specific for each data type. Here we present PLAZA 4.0, the latest iteration of the PLAZA framework. This version consists of two new instances (Dicots 4.0 and Monocots 4.0) providing a large increase in newly available species, and offers access to updated and newly implemented tools and visualizations, helping users with the ever-increasing demands for complex and in-depth analyzes. The total number of species across both instances nearly doubles from 37 species in PLAZA 3.0 to 71 species in PLAZA 4.0, with a much broader coverage of crop species (e.g. wheat, palm oil) and species of evolutionary interest (e.g. spruce, Marchantia). The new PLAZA instances can also be accessed by a programming interface through a RESTful web service, thus allowing bioinformaticians to optimally leverage the power of the PLAZA platform