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How everything started:A retrospective

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Geoscience Frontiers 2014年第5期5卷 627-634页

作者： jacques Touret Institut de Mineralogie.de Physique des Materiaux.et de cosmochimie IMPMc).Sorbonne Universites-UPMc Univ Paris 06 UMR CNRS 7590 Museum National d'Histoire Naturelle.IRD UMR 206.4 Place Jussieu F-75005 Paris France

Recalling some of the most important events and persons during his education and career, the author sketches his growth from a young engineer, educated in the sanctuary of solid state reactions, to an involved fully devoted scientific career for the study of fluids in the deep Earth. Most important in this respect was the discovery of c02 inclusions in granulites, which triggered years of discussion on fluid- absent or fluid-assisted granulite metamorphism. To some extent, this debate is a continuation of the former granite controversy, but it shows also how the famous battle of ＂soaks against pontiffs＂ could have been easily avoided.

关键词： Granite controversyMetamorphic petrologyFluid inclusionsJ TouretGranulites

Importance, features and uses of metal oxide catalysts in heterogeneous catalysis

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chinese Journal of catalysis 2019年第11期40卷 1627-1636页

作者： jacques c. Védrine Sorbonne Université Laboratoire de réactivité de surface UMR-CNRS 7197 4 place Jussieu. F-75252 Paris France

This short review paper aims at assembling the present state of the art of the multiuses of metal oxides in heterogeneous catalysis, concerning liquid and gaseous phases of the reactant mixtures on solid catalysts. It includes the description of the main types of metal oxide catalysts, of their various preparation procedures and of the main reactions catalysed by them (acid-base type, selective and total oxidations, bi-functional catalysis, photocatalysis, biomass treatments, environmental catalysis and some of the numerous industrial applications). challenges and prospectives are also discussed.

关键词： Heterogeneous catalysis Metal oxide catalyst Preparation procedure Acid-base reaction Selective and total oxidation reaction Photocatalysis Environmental catalysis Industrial process

Incipient charnockites from southern India:The role of brines

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Geoscience Frontiers 2019年第5期10卷 1789-1801页

作者： jacques L.R. Touret Robert c. Newton Michel cuney 121 Rue de la Réunion F-75020ParisFrance Department of Earth Planetary and Space SciencesUCLALos AngelesCAUSA Université de Lorraine CNRS-CREGUGeoRessources BP70239F-54506Vandoeuvre-les-Nancy CedexFrance

Southern India and Sri-Lanka are the places where “incipient charnockites”,*** local transformation of amphibolite-facies gneisses into orthopyroxene-bearing,igneous looking charnockites,have been discovered in the early *** fact that some incipient charnockites occur along a network of brittle fractures,together with cO2 remnants preserved in mineral inclusions,had called for the role of fluids during charnockite *** present work presents new observations on fluid inclusions and microtextures of incipient charnockites from type localities in southern *** addition to cO2-rich fluid inclusions in quartz and feldspar,all of the occurrences have disrupted remnants of concentrated aqueous alkali chloride ***2 inclusions are more abundant in paragneiss (Kerala) than in orthogneiss (Karnataka/Tamil Nadu).The finding of disrupted brine inclusions in the Kabbal charnockite is a key link between closely associated massive charnockites and closepet Granite,both of which also share the brine *** of the occurrences studied here have feldspar or feldspar-quartz microvein networks along grain boundaries of recrystallized quartz,feldspar and *** metasomatic veins again indicate the action of alkali-exchanging fluids (i.e.,saline solutions).Feldspar microveins,which have been found in most “massive” charnockites,along with the cO2-rich fluid inclusions,suggest a commonality of incipient charnockite and massive charnockite,both types differing in intensity of interaction with metasomatizing pore fluids.

关键词： Incipient charnockite High-grade crustal metamorphism cO2 Brine metasomatism

A unified plasticity methodology for rate-and temperature-sensitive alloys exhibiting a non-linear kinematic hardening behavior

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Acta Mechanica Solida Sinica 2017年第1期30卷 27-37页

作者： jacques Luk-cyr Daniel Paquet jacques Lanteigne Henri champliaud Aurelian Vadean Department of Mechanical Engineering Ecole Polyechnique de Montreal 2900 Blvd Edouard-Montpetit MontrealQC H3T 1J4 Institut de recherche d'Hydro-Quebec 1800 Blvd Lionel-Boulet Varennes QC J3X 1S1 Department of Mechanical Engineering Ecole de technologie superieure 1100 Rue Notre-Dame O Montreal QCH3C 1K3

In this paper, a novel unified plasticity methodology is proposed to allow the coupling of rate-and temperature-sensitivity of engineering alloys as well as the non-linear kinematic hardening behavior often observed during cyclic loading. The proposed methodology is general in the sense that an arbitrary constitutive model may be chosen for the viscoplastic part, as well as the cyclic part. We adapt our model with a physically-motivated viscoplasticity flow rule and a nonlinear kinematic hardening model. In contrast with other unified plasticity models, the simplified theory involves few material parameters that can be readily calibrated from standard mechanical tests. The capabilities of the proposed theory are demonstrated for a hot rolled annealed 304 L stainless steel supplied by Vimetal Peckover. The model is tested with stress–strain curves obtained from standard tensile and cyclic uniaxial tests at various strain amplitudes and strain-rates, and good accuracy of the response is obtained for strains up to 15%, within a temperature range of 293–673 K. We note that the cyclic plasticity model in our adapted theory can be readily enhanced with ratchetting, mean stress relaxation, strain amplitude history, Masing effects or other complex capabilities.

关键词： Unified plasticity constitutive behavior Viscoplasticity Non-linear kinematic hardening Stainless steels

A Large-Scale Palaeozoic Dextral Ductile Strike-Slip Zone:the Aqqikkudug-Weiya Zone along the Northern Margin of the central Tianshan Belt,Xinjiang,NW china

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Acta Geologica Sinica(English Edition) 1999年第2期73卷 148-162页

作者： cHARVET jacques Departement des Sciences de la Terre URM6530Universite d'Orleans45067 OrleansFrance

Abstract The nearly E-W-trending Aqqikkudug-Weiya zone, more than 1000 km long and about 30 km wide, is an important segment in the central Asian tectonic framework. It is distributed along the northern margin of the central Tianshan belt in Xinjiang, NW china and is composed of mylonitized Early Palaeozoic greywacke, volcanic rocks, ophiolitic blocks as a mélange complex, HP/LT-type bleuschist blocks and mylonitized Neoproterozoic schist, gneiss and orthogneiss. Nearly vertical mylonitic foliation and sub-horizontal stretching lineation define its strike-slip feature; various kinematic indicators, such as asymmetric folds, non-coaxial asymmetric macro- to micro-structures and c-axis fabrics of quartz grains of mylonites, suggest that it is a dextral strike-slip ductile shear zone oriented in a nearly E-W direction characterized by “flower” strusture with thrusting or extruding across the zone toward the two sides and upright folds with gently plunging hinges. The Aqqikkudug-Weiya zone experienced at least two stages of ductile shear tectonic evolution: Early Palaeozoic north vergent thrusting ductile shear and Late carboniferous-Early Permian strike-slip deformation. The strike-slip ductile shear likely took place during Late Palaeozoic time, dated at 269±5 Ma by the40Ar/39Ar analysis on neo-muscovites. The strike-slip deformation was followed by the Hercynian violent S-type granitic magmatism. Geodynamical analysis suggests that the large-scale dextral strike-slip ductile shearing is likely the result of intracontinental adjustment deformation after the collision of the Siberian continental plate towards the northern margin of the Tarim continental plate during the Late carboniferous. The Himalayan tectonism locally deformed the zone, marked by final uplift, brittle layer-slip and step-type thrust faults, transcurrent faults and E-W-elongated Mesozoic-cenozoic basins.

关键词： ductile thrusting dextral strike-slipping kinematic analysis Aqqikkudug-Weiya zone Tianshan Palaeozoic orogenic belt

Intraspecific maternal competition in insect parasitoids induces summer diapause in insect parasitoids

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Insect Science 2018年第6期25卷 1080-1088页

作者： Kévin Tougeron George Hraoui cécile Le Lann Joan van Baaren jacques Brodeur UMR-cNRS 6553Ecobio Universitéde Rennes 1RennesFrance Université Bretagne Loire Cité InternationaleRennesFrance Département de Sciences Biologiques Institut de Recherche en Biologie VegétaleUniversitéde MontréalMontréalCanada

Organisms often live in unpredictable environments and have to adopt life history strategies that optimize their fitness under these *** to bet-hedging theory,individuals can reduce variation in fitness outcomes by investing in different strategies at the same *** arthropods,facultative summer diapause enables survival during dry and hot periods of the year,and can be triggered by a decrease in resource abundance. However,the effect of resource depletion on diapause induction has never been disentangled from the effect of the perception of the presence of *** two solitary parasitoid species of cereal aphids as a model system,Aphidius avenae (Haliday)and Aphidius rhopalosiphi (De Stefani-Perez)(Hymenoptera:Braconidae),we tested whether (i)low absolute host density and/or (ii)high levels of parasitoid females'competition lead to maternal-induced summer diapause in parasitoid *** summer-like climatic conditions,emerging parasitoid females were (i)reared alone and exposed to different host densities (from 5 to 130 aphids),or (ii)reared together with competing females (from 2 to 20 females)and then exposed individually to 50 *** both parasitoid species, low aphid densities did not induce summer ***,the incidence of summer diapause increased up to a maximum of 11% with increasing levels of competition expe rienced by female *** than 60% of the females produced both diapausing and nondiapausing offspring after being kept at the two highest competition densities. Such a "spreading-the-risk"strategy has likely evolved to optimize parasitoid fitness by preventing the following generation from exposure to low populations of suitable hosts and high mortality from *** results provide the first experimental evidence of direct maternal competition-induced diapause in insects,and may change the way we apprehend the evolution of arthropod seasonal ecology,by considering intraspecific c

关键词： aestivation bet-hedging host density intraspecific competition superparasitism

Human viral pathogens are pervasive in wastewater treatment center aerosols

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Journal of Environmental Sciences 2018年第5期30卷 45-53页

作者： Evelyne Brisebois Marc Veillette Vanessa Dion-Dupont jacques Lavoie jacques corbeil AlexANDer culley caroline Duchaine Universite Laval Pavillon Alexandre Vachon1045ave de la MedecineQuebecQC GIVOA6Canada cRIUcPQ 2725 Chemin Sainte-FoyQuebecQC GIV 4G5Canada IRSST 505 Boulevard de Maisonneuve OMontréalQCH3A 3C2Canada cRcHU 2705 Boulevard LaurierRC-709QuébecQCG1V 4G2Canada

Wastewater treatment center（WTc） workers may be vulnerable to diseases caused by viruses, such as the common cold, influenza and gastro-intestinal infections. Although there is a substantial body of literature characterizing the microbial community found in wastewater, only a few studies have characterized the viral component of WTc aerosols,despite the fact that most diseases affecting WTc workers are of viral origin and that some of these viruses are transmitted through the air. In this study, we evaluated in four WTcs the presence of 11 viral pathogens of particular concern in this milieu and used a metagenomic approach to characterize the total viral community in the air of one of those WTcs. The presence of viruses in aerosols in different locations of individual WTcs was evaluated and the results obtained with four commonly used air samplers were *** detected four of the eleven viruses tested, including human adenovirus（h Ad V）,rotavirus, hepatitis A virus（HAV） and Herpes Simplex virus type 1（HSV1）. The results of the metagenomic assay uncovered very few viral RNA sequences in WTc aerosols, however sequences from human DNA viruses were in much greater relative abundance.

关键词： Airborne viruses Air sampling Wastewater treatment plants Viral metagenomics

Vegetable Production After Flooded Rice Improves Soil Properties in the Red River Delta, Vietnam

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Pedosphere 2015年第1期25卷 130-139页

作者： Arij P.EVERAARTS jacques J.NEETESON Pham T.T.HUONG Paul c.STRUIK Applied Plant Research Wageningen University and Research Centre Plant Research International Wageningen University and Research Centre Field crop Research Institute Hai Duong and Hanoi University of Agriculture centre for crop Systems Analysis Wageningen University

Vegetable production in South East Asia often is in rotation with flooded rice. The puddling of the soil with flooded rice production may result in unfavourable soil conditions for the subsequent production of dry land crops. To establish whether permanent vegetable production results in favourable soil conditions for vegetables, the effects of five different permanent vegetable production systems and a system of vegetable production in rotation with flooded rice on soil properties after flooded rice were studied in a 2-year field experiment. Bulk density at 0.05–0.10 m depth layer decreased with permanent vegetable production and vegetable production in rotation with flooded rice. The decrease in bulk density was influenced by the application of organic manure and rice husks, and especially by the number of crops cultivated, suggesting that frequency of soil tillage had a major effect on bulk density. Ploughing with buffalo traction after flooded rice, in combination with construction of raised beds, could reduce or totally eliminate negative effects of puddling on soil structure. Bulk density at 0.15–0.20 m soil depth was not influenced. Soil acidity decreased significantly in all systems. Soil organic carbon increased in all systems, but significant increase was only found in two permanent vegetable production systems. Available phosphorus(P) significantly increased in two permanent vegetable production systems, with a positively correlation to the amount of P applied. The significant decrease in bulk density and increase in p H(H2O), after only 2 years, showed that soil conditions after flooded rice could be improved in a short time under intensive vegetable production.

关键词： available phosphorus bulk density organic carbon puddling soil fertility soil improvement

Two hits are better than one:rational dual strategy efficiently fights neuroblastoma

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1802-1804页

作者： jacques Zimmer camille Rolin Markus Ollert Department of Infection and Immunity Luxembourg Institute of HealthEsch-sur-AlzetteLuxembourg University of Luxembourg Esch-sur-AlzetteLuxembourg Department of Dermatology and Allergy center Odense Research Center for Anaphylaxis(ORCA)University of Southern DenmarkOdenseDenmark

The recently published landmark paper by Bergaggio et *** Roberto chiarle’s group in cancer cell1 investigates an elegant double-hit strategy to improve anti-cancer *** important approach demonstrates in a preclinical model that chimeric antigen receptor(cAR)-T cell treatment can be rendered more efficient by increasing the cell surface expression of the cAR target structure via a small molecule.

关键词： neuroblastoma cancer