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Experimental evidence of Wolbachia introgressive acquisition between terrestrial isopod subspecies

Current zoology 2021年第4期67卷 455-464页

作者： Nicolas Bech Sophie Beltran-Bech Cassandre Chupeau Jean Peccoud Magali Thierry Roland Raimond Yves Caubet mathieu Sicard Pierre Greve Laboratoire Ecologie et Biologie des Interactions EBI UMR CNRS 7267Universitéde Poitiers5 rue Albert TurpainTSA *** POITIERSCedex 9France ISEM CNRSIRDEPHEUniversite de MontpellierMontpellierFrance

Wolbachia are the most widespread endosymbiotic bacteria in *** many arthropod host species,they manipulate reproduction via several mechanisms that favor their maternal transmission to *** them,cytoplasmic incompatibility(Cl)promotes the spread of the symbiont by specifically decreasing the fertility of crosses involving infected males and uninfected females,via embryo *** differences in reproductive efficiency may select for the avoidance of incompatible mating,a process called reinforcement,and thus contribute to population *** the terrestrial isopod Porcellio dilatatus,the Wolbachia wPet strain infecting the subspecies *** induces unidirectional Cl with uninfected individuals of the subspecies *** study the consequences of Cl on *** and *** hybridization,mitochondrial haplotypes and Wolbachia infection dynamics,we used population cages seeded with different proportions of the 2 subspecies in which we monitored these genetic parameters 5 and 7 years after the initial *** of microsatellite markers allowed evaluating the degree of hybridization between individuals of the 2 *** markers revealed an increase in *** nuclear genetic signature in all mixed cages,reflecting an asymmetry in *** led to the introgressive acquisition of Wolbachia and mitochondrial haplotype from *** into nuclear genomes dominated by alleles of *** discuss these results with regards to Wolbachia effects on their host(Cl and putative fitness cost),and to a possible reinforcement that may have led to assortative mating,as possible factors contributing to the observed results.

关键词： cytoplasmic incompatibility introgressive acquisition terrestrial isopod Wolbachia

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LES METAPHORES DU CORPS DANS LE DISCOURS POLITIQUE DE MONTAIGNE

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法国研究 1992年第1期 59-75页

作者： Gisele mathieu-CASTELLANI

此文论述蒙泰涅的《随笔集》(发表于1580—1592)如何开启了现代主义文学的先河。蒙泰涅在观察、描绘自己时也观察、描绘了社会,在自己的身体和他那个时代的社会机制之间建立起了类似网络,从中得出怀疑主义的结论,认为社会机体同人的身... 详细信息

此文论述蒙泰涅的《随笔集》(发表于1580—1592)如何开启了现代主义文学的先河。蒙泰涅在观察、描绘自己时也观察、描绘了社会,在自己的身体和他那个时代的社会机制之间建立起了类似网络,从中得出怀疑主义的结论,认为社会机体同人的身体一样也要经历生、老、病、死的阶段。此文作者运用精神分析学的概念和方法,探讨了这些有关身体的隐喻,指出蒙泰涅的哲学基础是一种自恋式的恐惧,他害怕在“公共事务”构成的陌生而危险的氛围中失去自我,因此宁愿进行自我分析,以“自知之明”阅读、书写社会。

关键词：现代主义文学精神分析学身体社会机制社会机体哲学基础怀疑主义公共事务自我分析观察

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Single step fabrication of N-doped graphene/Si3N4/SiC heterostructures

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Nano Research 2014年第6期7卷 835-843页

作者： Emilio Velez-Fort Emiliano Pallecchi mathieu G. Silly Mounib Bahri Gilles Patriarche Abhay Shukla Fausto Sirotti Abdelkarim Ouerghi CNRS-Laboratoire de Photonique et de Nanostructures (LPN) Route de Nozay Marcoussis 91460 France Universite Pierre et Marie Curie (CNRS - IMPMC) 4 PL Jussieu Paris 75005 France Synchrotron-SOLEIL Saint-Aubin BP48 F91192 Gif sur Yvette Cedex France

In-plane heteroatom substitution of graphene is a promising strategy to modify its properties. The ability to dope graphene with electron-donor nitrogen heteroatoms is highly important for modulating electrical properties of graphene. Here we demonstrate a transfer-free method to directly grow large area quasi free-standing N-doped graphene bilayers on an insulating substrate （Si3N4）. Electron-bombardment heating under nitrogen flux results in simultaneous growth of N-doped graphene and a Si3N4 layer on the SiC surface. The decoupling of N-doped graphene from the substrate and the presence of Si3N4 are identified by X-ray photoemission spectroscopy and low-energy electron diffraction. The substitution of nitrogen atoms in the graphene planes was confirmed using high resolution X-ray photoemission spectroscopy which reveals several atomic configurations for the nitrogen atoms： Graphitic-like, pyridine-like, and pyrrolic- like. Furthermore, we demonstrated for the first time that N-doped graphene could be used to efficiently probe oxygen molecules via nitrogen atom defects.

关键词： epitaxial graphene spectroscopy nitrogen-doped graphene low-energy electronmicroscopy electronic properties

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Positive effect of spring advance on the diet quality of an alpine herbivore

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Integrative zoology 2022年第1期17卷 78-92页

作者： Johan ESPUNYES Emmanuel SERRANO Sara CHAVES Jordi BARTOLOMÉ Pierre MENAUT Elena ALBANELL Pascal MARCHAND Kévin FOULCHÉ mathieu GAREL Wildlife Ecology and Health group(WE&H)i Servei d’Ecopatologia de la Fauna Salvatge(SEFaS) Department of Animal Medicine and SurgeryFaculty of Veterinary MedicineUniversitat Autònoma de BarcelonaBellaterraSpain Wildlife Conservation Medicine Research Group(WildCoM) Department of Animal Medicine and SurgeryFaculty of Veterinary MedicineUniversitat Autònoma de BarcelonaBellaterraSpain Research and Conservation Department Zoo de BarcelonaBarcelonaSpain Group of Ruminant Research(G2R) Department of Animal and Food ScienceFaculty of Veterinary MedicineUniversitat Autònoma de BarcelonaBellaterraSpain French Agency for Biodiversity Direction Régionale OccitanieService d’Appui aux Acteurs et Mobilisation du TerritoireVilleneuve de RivièreFrance French Agency for Biodiversity Direction de la Recherche et Appui ScientifiqueUnitéOngulés SauvagesGièresFrance

Changes in vegetation phenology related to global warming are having alarming effects on the life history traits of many herbivore *** changes are particularly critical in alpine ecosystems,where strong climate limitations on plant growth make seasonal synchronization imperative for the growth,reproduction and survival of ***,despite the pivotal role of resource-use strategies on the performances of such species,few studies have explicitly assessed the mechanistic impact of climate change on their *** aimed to fill this gap by studying the effect of spring onset on the dietary composition and quality of a medium-size alpine herbivore while considering density-dependent processes and age-and sex-specific differences in foraging *** an exceptional,long-term(24 years)direct individual-based dietary monitoring of a Pyrenean chamois population(Rupicapra pyrenaica pyrenaica),we showed that ongoing earlier onsets of spring are leading to an earlier access to high-quality forage and therefore a higher diet quality at a fixed date,without apparent changes in diet *** also showed that at high densities,intraspecific competition reduced diet quality by driving animals to feed more on woody plants and less on nutritious forbs and *** assessing the mechanistic effects of global warming on the dietary patterns of species at the center of trophic networks,this study is an essential step for predictive models aiming at understanding the ongoing ecosystem consequences of the global climatic crisis.

关键词： cuticle microhistological analysis diet composition near-infrared spectroscopy Rupicapra pyrenaica

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Geodynamic evolution of the Tethyan lithosphere as recorded in the Spontang Ophiolite,South Ladakh ophiolites(NW Himalaya,India)

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Geoscience Frontiers 2022年第1期13卷 326-349页

作者： Mallika K.Jonnalagadda mathieu Benoit Shivani Harshe Romain Tilhac Raymond A.Duraiswami Michel Grégoire Nitin R.Karmalkar Interdisciplinary School of Science Savitribai Phule Pune UniversityPune 411007India Department of Geology Savitribai Phule Pune UniversityPune 411007India Géosciences Environnement Toulouse CNRS-CNES-IRD-UniversitéPaul SabatierObservatoire Midi Pyrénées31400 ToulouseFrance Instituto Andaluz de Ciencias de la Tierra(IACT) CSIC–Universidad de Granada18100 ArmillaGranadaSpain Vice-Chancellor’s Office Savitribai Phule Pune UniversityPune 411007India

The Spontang Ophiolite complex represents the most complete ophiolite sequence amongst the South Ladakh ophiolites and comprises mantle rocks(depleted harzburgites,dunites and minor lherzolites)as well as crustal rocks(basalt,isotropic gabbros,layered gabbros etc.).In the present study,detailed geochemistry(whole rock as well as mineral chemistry)and Sr-Nd isotopic analyses of thirty-six ultramaficmafic samples have been attempted to constraint the evolution and petrogenetic history of the Tethyan oceanic ***,trace-element and REE patterns of the peridotites and their minerals indicate that the lherzolites experienced lower degrees of partial melting resembling abyssal peridotites(at higher temperatures,TREE=$1216℃)than the harzburgites(6%–8%versus 15%–17%).Elevated eNd(t)and variable^(87) Sr/^(86) Sr(t)ratios along with REE patterns suggest that the Spontang mafic rocks display N-MORB affinity with negligible participation of oceanic sediments in their genesis are originated from a depleted upper mantle with little contribution from subduction-related ***-type Neotethyan oceanic crust is associated with the earliest phase of subduction(of older Jurassic age)through which a younger intra-oceanic island arc(Spong arc)subsequently *** REE display typical U-shaped patterns,suggesting that these rocks have been metasomatized by LREE-enriched *** the other side,mafic rocks are characterized by heterogeneous(Nb/La)PMand(Hf/Sm)PMand relatively homogeneous eNd(t),indicating interaction of subduction-related melts with the upper mantle during the initiation of subduction,in Early Cretaceous times.

关键词： Peridotites Mafic rocks Partial melting Metasomatism Ladakh

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Dynamics of momentum distribution and structure factor in a weakly interacting Bose gas with a periodical modulation

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Communications in Theoretical Physics 2020年第12期72卷 171-175页

作者： Ning Liu z C Tu Department of Physics Beijing Normal UniversityBeijing 100875China

The momentum distribution and dynamical structure factor in a weakly interacting Bose gas with a time-dependent periodic modulation in terms of the Bogoliubov treatment are *** evolution equation related to the Bogoliubov weights happens to be a solvable mathieu equation when the coupling strength is periodically *** exact relation between the time derivatives of momentum distribution and dynamical structure factor is derived,which indicates that the single-particle property is strongly related to the two-body property in the evolutions of Bose–Einstein *** is found that the momentum distribution and dynamical structure factor cannot display periodical *** stable dynamics,some particular peaks in the curves of momentum distribution and dynamical structure factor appear synchronously,which is consistent with the derivative relation.

关键词： Bose gas periodical coupling constant dynamical structure factor mathieu equation

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Compact Thermosyphon Heat Exchanger for Power Electronics Cooling

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Journal of Energy and Power Engineering 2013年第5期7卷 972-978页

作者： Bruno Agostini mathieu Habert ABB Ltd. Switzerland Corporate Research Daettwi15405 Switzerland

The heat losses density in power electronics products follows an ever increasing trend. Nowadays they reach 200 W/cmz at chip level and 50 W/cm2 at heatsink base level. Water cooling is the most effective cooling method but unfortunately water is often undesired due to high voltages or costumer requirements. Two-phase cooling is a promising technology for electronics cooling. It allows using dielectric fluids in passive systems and still benefits from very high heat transfer coefficients. Thermosyphons are a particularly interesting technology in the field of power electronics because it is entirely passive and a simple equipment. ABB has developed a compact thermosyphon heat exchanger based on automotive technology, which uses numerous multi-port extruded tubes with capillary sized channels disposed in parallel and brazed to a heated base plate in order to achieve the desired compactness. The experimental performances of this novel power electronics cooling system are presented with R134a as a working fluid. The influence of several parameters on the performances was studied experimentally： coolant flow rate, coolant temperature, heat load and fluid filling.

关键词： Thermosyphon heat pipe power electronics.

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Atomic scale memristive photon source

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Light(Science & Applications) 2022年第7期11卷 1414-1422页

作者： Bojun Cheng Till zellweger Konstantin Malchow Xinzhi zhang Mila Lewerenz Elias Passerini Jan Aeschlimann Ueli Koch mathieu Luisier Alexandros Emboras Alexandre Bouhelier Juerg Leuthold ETH zurich Institute of Electromagnetic FieldsZurich 8092Switzerland Laboratoire Interdisciplinaire Carnot de Bourgogne UMR 6303 CNRSUniversitéde Bourgogne Franche-ComtéDijon 21078France ETH zurich Integrated Systems LaboratoryZurich 8092Switzerland

Memristive devices are an emerging new type of devices operating at the scale of a few or even single *** are currently used as storage elements and are investigated for performing in-memory and neuromorphic *** these devices,Ag/amorphous-SiO_(x)/Pt memristors are among the most studied systems,with the electrically induced filament growth and dynamics being thoroughly investigated both theoretically and *** this paper,we report the observation of a novel feature in these devices:The appearance of new photoluminescent centers in SiO_(x) upon memristive switching,and photon emission correlated with the conductance *** observation might pave the way towards an intrinsically memristive atomic scale light source with applications in neural networks,optical interconnects,and quantum communication.

关键词： photon thoroughly amorphous

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Concurrent PIEzO1 activation and ATP2B4 blockade effectively reduce the risk of cerebral malaria and inhibit in vitro Plasmodium falciparum multiplication in red blood cells

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Genes & Diseases 2023年第6期10卷 2210-2214页

作者： mathieu Adjemout Bruno Pouvelle Fatou Thiam Alassane Thiam Magali Torres Samia Nisar Babacar Mbengue Alioune Dieye Pascal Rihet Sandrine Marquet Institut National de la SantéEt de la Recherche Médicale(INSERM) UnitéMixte de Recherche(UMR)U1090Aix Marseille UniversitéTAGC Theories and Approaches of Genomic ComplexityInstitut MarMaRaMarseilleFrance Groupe de Recherche Biotechnologie Appliquée et Bioprocédés Environnementaux(GRBA-BE) Ecole Supérieure PolytechniqueUniversitéCheikh Anta Diop de DakarDakar BP5005Senegal Pole D’Immunophysiopathologie&Maladies Infectieuses(IMI) Institut Pasteur de DakarDakar BP 220Senegal Service D’Immunologie UniversitéCheikh Anta Diop de DakarDakar BP5005Senegal Aix Marseille University CNRSMarseille 13009France

Malaria caused by the Plasmodium falciparum parasite is responsible for more than 240 million cases per year and killed 627,000 people in 2020,mostly African *** malaria parasite is transmitted by mosquitos belonging to the genus *** an asymptomatic liver stage,the parasite is released into the bloodstream to invade red blood cells(RBCs)and replicate *** erythrocytic phase is associated with a variety of clinical manifestations,including mild and severe *** malaria(CM)is one of the most severe forms,characterized by the sequestration of parasitized RBCs in the small capillaries of the brain and the local development of cytokine-mediated *** variants in genes encoding proteins involved in red blood cell physiology are protective factors against severe malaria,as clearly demonstrated for the sickle cell variant of hemoglobin(HbS).

关键词： malaria falciparum Plasmodium

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Attributable Causes of Cancer in China:Fruit and Vegetable

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Chinese Journal of Cancer Research 2011年第3期23卷 171-176页

作者： Hui-juan Xiao Hao Liang Jian-bing Wang Cheng-Yu Huang Wen-qiang Wei mathieu Boniol You-lin Qiao Paolo Boffetta Department of Nutrition and Food Hygiene West China School of Public Health Sichuan University Chengdu 610041 China Departments of Cancer Epidemiolo gy Cancer Institute Chinese Academy of Medical Sciences Beijing 100021 China Department of Epidemiology and Statistics Institute of Basic Medical Sciences Chinese Academy of Medical Sciences ＆School of Basic Medicine Peking Union Medical College Beijing 100005 China International Prevention Research Institute Lyon 69008 France The Tisch Cancer Institute Mount Sinai School of Medicine New York NY 10029 USA Nutrition Department Tianjin Third Central Hospital Tianjin 300170 China

Objective：To provide an evidence-based and consistent assessment of the burden of cancer attributable to inadequate fruit and vegetable intake in China in ***：The proportions of cancers attributable to low consumption of vegetable and fruit were calculated separately to estimate the burden of related cancers for the year 2005 in *** on the prevalence of exposure were derived from a Chinese nutrition and health *** on relative risks were mainly derived from *** fractions were calculated based on the counterfactual scenario which was a shift in the exposure ***：The total cancer burden attributable to inadequate consumption of fruit was up to 233,000 deaths （13.0% of all cancers） and 300,000 cases （11.6% of all cancers） in *** consumption of vegetable to the highest quintile could avoid total cancer deaths and cases by 3.6% （64,000 persons） and 3.4% （88,000 persons）.The contributions to cancer burden were higher in rural areas than in urban *** have greater influence on men than on *** largest proportions of cancer burden attributable to low fruit and vegetable intake were for oral and pharyngeal ***：This study showed that inadequate intake of fruit and vegetable makes a significant contribution to the cancer *** consumption of fruit and vegetable could prevent many cancer deaths and save many *** the consumption of fruit and vegetable is an important component in diet-based strategies for preventing cancer.

关键词： Fruit Vegetable Cancer Population attributable fraction China

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