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Tophaceous gout of the middle ear

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Journal of Otology 2019年第4期14卷 155-157页

作者： Stephane Gargula Guillaume Poillon Mary Daval Marc Williams mathieu veyrat Homa Adle-Biassette Denis Ayache Department of Otolaryngogy Head and Neck SurgeryFoundation Adolphe de Rothschild HospitalParisFrance Department of Neuroradiology Foundation Adolphe de Rothschild HospitalParisFrance Department of Pathology Lariboisiere HospitalParis DiderotParis-Cite-Sorbonne UniversityParisFrance

We present a very rare case of tophaceous gout of the middle ear causing conductive hearing loss,with special emphasis on Computed Tomography presentation.

关键词： Gout Middle ear Hearing loss Conductive hearing loss Computed tomography

On-surface synthesis of covalent coordination polymers on micrometer scale

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Nano Research 2017年第3期10卷 933-940页

作者： mathieu Koudia Elena Nardi Olivier Siri mathieu Abel Aix Marseille UniversitY CNRS IM2NP UMR 7334 13397 Marseille France Aix Marseille UniversitY CNRS CINaM UMR 7325 13288 Marseille France

On-surface synthesis under ultrahigh vacuum provides a promising strategy to control matter at the atomic level, with important implications for the design of new two-dimensional materials having remarkable electronic, magnetic, or catalytic properties. This strategy must address the problem of limited extension of the domains due to the irreversible nature of covalent bonds, which prevents the ripening of defects. We show here that extended materials can be produced by a controlled co-deposition process. In particular, co-deposition of quinoid zwitterion molecules with iron atoms on a Ag（111） surface held at 570 K allows the formation of micrometer-sized domains based on covalent coordination bonds. This work opens up the construction of micrometer-scale single-layer covalent coordination materials under vacuum conditions.

关键词： on-surface synthesis scanning tunnelingmicroscopy (STM) two-dimensional polymer covalent organic frameworks

On the identification of paedomorphic and overwintering larval newts based on cloacal shape： review and guidelines

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Current Zoology 2017年第2期63卷 165-173页

作者： mathieu DENOEL Laboratory of Fish and Amphibian Ethology Behavioural Biology Unit FOCUS University of Liege 22 Quai van Benden 4020 Liege Belgium

Paedomorphosis is an alternative process to metamorphosis in which adults retain larval traits at the adult stage. It is frequent in newts and salamanders, where larvae reach sexual maturity with- out losing their gills. However, in some populations, larvae overwinter in water, while remaining immature. These alternative ontogenetic processes are of particular interest in various research fields, but have different causes and consequences, as only paedomorphosis allows metamor- phosis to be bypassed before maturity. It is thus relevant to efficiently identify paedomorphs ver- sus overwintering larvae. In this context, the aim of this article was 3-fold： firstly, to perform a meta-analysis of the identification procedures carried out in the literature; secondly, to determine the effectiveness of body size to make inferences about adulthood by surveying natural newt popu- lations of Lissotriton helveticus and Ichthyosaura alpestris, and thirdly, to propose easy guidelines for an accurate distinction between large larvae and paedomorphs based on an external sexual trait, which is essential for reproduction--the cloaca. More than half of the studies in the literature do not mention the diagnostic criteria used for determining adulthood. The criteria mentioned were the presence of mature gonads （10%）, eggs laid （4%）, courtship behavior （10%）, and external morphological sexual traits （39%） including the cloaca （24%）. Body-size thresholds should not be used as a proxy for paedomorphosis, because overwintering larvae can reach a larger size than paedomorphs within the same populations. In contrast, diagnosis based on cloacal external morphology is recommended, as it can be processed by the rapid visual assessment of all caught specimens, thus providing straightforward data at the individual level for both sexes.

关键词： amphibians cloacal morphology facultative paedomorphosis neoteny review secondary sexual traits sexual di-morphism sexual maturity.

Compost Effect on Diuron Retention and Transport in Structured Vineyard Soils

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Pedosphere 2015年第1期25卷 25-36页

作者： mathieu THEVENOT Sylvie DOUSSET UMR 6282 Biogosciences Universit de Bourgogne-CNRS6 Bd Gabriel Dijon 21000 (France) UMR 7360 LIEC Universit de Lorraine-CNRSBP 70239 Vand?uvre-lès-Nancy 54506 (France)

Diuron is frequently detected in surface- and groundwater under the vineyards, where organic amendments are often used, in Burgundy of France. Undisturbed column experiments were conducted to study the influence of three composted organic amendments on diuron leaching through columns of two vineyard soils from Vosne-Roman′ee(VR, calcareous Cambisol) and Beaujolais(Bj, sandy Leptosol), France. Bromide(used as non-reactive tracer) and diuron breakthrough curves(BTCs) were analyzed using convectivedispersive equation(CDE), two-region(mobile-immobile, MIM) and two-site models. No influence of the composts was observed on the bromide recovery rates. The CDE model described well the bromide BTCs for all columns of the Bj soil and seven of the VR soil, suggesting a homogeneous water flow. However, for five VR soil columns, the MIM model fitted better, suggesting a partition of the water flow(15%–50% of matrix flow). The texture, the coarse material content and the tillage of the VR soil could explain this heterogeneity. However, for all columns, diuron leaching was greater through the Bj soil(46%–68%) than the VR soil(28%–39%). The compost addition resulted in a contrasting effect on diuron leaching: no difference or a decrease was observed for the VR soil, probably due to an increase of adsorption sites, whereas no difference or an increase was observed for the Bj soil possibly because of interactions and/or competition of diuron with the compost water-extractable organic matter which could facilitate its transport. All the diuron BTCs were best described using the two-site model, suggesting a large proportion of time-dependent sorption sites(30%–50%). The soil type and the nature of the amendments had contrasting influences on diuron transport. Composts with a high water-soluble fraction must be avoided in sandy soils to reduce the risk of groundwater contamination.

关键词： groundwater contamination leaching organic amendment soil type sorption water-extractable organic matter

Cassini-Huygens results on Titan's surface

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Chinese Journal of Astronomy and Astrophysics 2009年第3期9卷 249-268页

作者： Athena Coustenis mathieu Hirtzig LESIA Observatoire de Meudon

Our understanding of Titan, Saturn＇s largest satellite, has recently been considerably enhanced, thanks to the Cassini-Huygens mission. Since the Saturn Orbit Injection in July 2004, the probe has been harvesting new insights of the Kronian system. In particular, this mission orchestrated a climax on January 14, 2005 with the descent of the Huygens probe into Titan＇s thick atmosphere. The orbiter and the lander have provided us with picturesque views of extraterrestrial landscapes, new in composition but reassuringly Earth-like in shape. Thus, Saturn＇s largest satellite displays chains of mountains, fields of dark and damp dunes, lakes and possibly geologic activity. As on Earth, landscapes on Titan are eroded and modeled by some alien hydrology： dendritic systems, hydrocarbon lakes, and methane clouds imply periods of heavy rainfalls, even though rain was never observed directly. Titan＇s surface also proved to be geologically active - today or in the recent past - given the small number of impact craters listed to date, as well as a few possible cryovolcanic features. We attempt hereafter a synthesis of the most significant results of the Cassini-Huygens endeavor, with emphasis on the surface.

关键词： planets and satellites Titan - space vehicles

Fusion of spatiotemporal and thematic features of textual data for animal disease surveillance

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Information Processing in Agriculture 2023年第3期10卷 347-360页

作者： Sarah Valentin Renaud Lancelot mathieu Roche CIRAD F-34398 MontpellierFrance ASTRE Univ MontpellierCIRADINRAEMontpellierFrance TETIS Univ MontpellierAgroParisTechCIRADCNRSINRAEMontpellierFrance Departement de Biologie Universite de SherbrookeSherbrookeQuebecCanada

Several internet-based surveillance systems have been created to monitor the web for animal health *** systems collect a large amount of news dealing with outbreaks related to animal *** identifying news articles that describe the same outbreak event is a key step to quickly detect relevant epidemiological information while alleviating manual curation of news *** paper addresses the task of retrieving news articles that are related in epidemiological *** tackle this issue using text mining and feature fusion *** main objective of this paper is to identify a textual representation in which two articles that share the same epidemiological content are *** compared two types of representations(i.e.,features)to represent the documents:(i)morphosyntactic features(i.e.,selection and transformation of all terms from the news,based on classical textual processing steps)and(ii)lexicosemantic features(i.e.,selection,transformation and fusion of epidemiological terms including diseases,hosts,locations and dates).We compared two types of term weighing(i.e.,Boolean and TF-IDF)for both *** combine and transform lexicosemantic features,we compared two data fusion techniques(i.e.,early fusion and late fusion)and the effect of features generalisation,while evaluating the relative importance of each type of *** conducted our analysis using a corpus composed of a subset of news articles in English related to animal disease *** results showed that the combination of relevant lexicosemantic(epidemiological)features using fusion methods improves classical morphosyntactic representation in the context of disease-related news *** lexicosemantic representation based on TF-IDF and feature generalisation(F-measure=0.92,r-precision=0.58)outperformed the morphosyntactic representation(F-measure=0.89,r-precision=0.45),while reducing the features *** the features into lower granular

关键词： Animal disease surveillance Text mining Ranking Fusion

A graph-based approach for the structural analysis of road and building layouts

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Geo-Spatial Information Science 2019年第1期22卷 59-72页

作者： mathieu Domingo Rémy Thibaud Christophe Claramunt Department of Computer Science University of Pau and Pays de l’AdourPauFrance Naval Academy Research Institute Brest CedexFrance

A better understanding of the relationship between the structure and functions of urban and suburban spaces is one of the avenues of research still open for geographical information *** research presented in this paper develops several graph-based metrics whose objective is to characterize some local and global structural properties that reflect the way the overall building layout can be cross-related to the one of the road *** structural properties are modeled as an aggregation of parcels,buildings,and road *** introduce several computational measures(Ratio Minimum Distance,Minimum Ratio Minimum Distance,and Metric Compactness)that respectively evaluate the capability for a given road to be connected with the whole road *** measures reveal emerging sub-network structures and point out differences between less-connective and moreconnective parts of the *** on these local and global properties derived from the topological and graph-based representation,and on building density metrics,this paper proposes an analysis of road and building layouts at different levels of *** metrics developed are applied to a case study in which the derived properties reveal coherent as well as incoherent neighborhoods that illustrate the potential of the approach and the way buildings and roads can be relatively connected in a given urban ***,and by integrating the parcels and buildings layouts,this approach complements other previous and related works that mainly retain the configurational structure of the urban network as well as morphological studies whose focus is generally limited to the analysis of the building layout.

关键词： Urban and suburban spaces graph-based modeling structural analysis GIS

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World Journal of Gastroenterology 2014年第22期20卷 6725-6743页

作者： mathieu Meleine Julien Matricon Department of Inflammation Nutrition and Gut-Brain Axis DysfunctionInserm Unit 1073Faculté de Médecine et PharmacieUniversité de Rouen76183 RouenFrance Julien Matricon Clermont UniversitéUniversité d’Auvergne63001 Clermont-FerrandFrance Department of Pharmacology. University of Texas Health Science Center San AntonioTX 78229-3900United States

According to epidemiological studies,twice as many women as men are affected by irritable bowel syndrome(IBS)in western countries,suggesting a role for sex hormones in IBS *** growing evidence about the implications of sex hormones in IBS symptom modulation,data on mechanisms by which they influence disease development are *** review aims to determine the state of knowledge about the role of sex hormones in sensorimotor dysfunctions and to address the possible interplay of sex hormones with common risk factors associated with *** scientific bibliography was searched using the following keywords:irritable bowel syndrome,sex,gender,ovarian hormone,estradiol,progesterone,testosterone,symptoms,pain,sensitivity,motility,permeability,stress,immune system,brain activity,spinal,supraspinal,*** hormones variations along themenstrual cycle affect sensorimotor gastrointestinal function in both healthy and IBS *** can modulate pain processing by interacting with neuromodulator systems and the emotional system responsible for visceral pain *** hormones can also modulate the susceptibility to stress,which is a pivotal factor in IBS occurrence and symptom *** instance,estrogen-dependent hyper-responsiveness to stress can promote immune activation or impairments of gut barrier *** conclusion,whereas it is important to keep in mind that ovarian hormones cannot be considered as a causal factor of IBS,they arguably modulate IBS onset and ***,our understanding of the underlying mechanisms remains limited and studies assessing the link between IBS symptoms and ovarian hormone levels are needed to improve our knowledge of the disease evolution with regard to *** studies assessing the role of male hormones are also needed to understand fully the role of sex hormones in ***,investigation of brain-gut interactions is critical to decipher how stress,ovarian hormones,an

关键词： Irritable bowel syndrome Pathophysiology Gender Sex hormones Gut Sensori-motricity Neurosensitization Stress Immune activation Permeabilization

National and Cultural Differences in the C2C Electronic Marketplace: An Investigation into Transactional Behaviors of Chinese, American, and French Consumers on eBay

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Tsinghua Science and Technology 2009年第3期14卷 383-389页

作者：朱岩李岩 mathieu Leboulanger School of Economics and Management Tsinghua UniversityBeijing 100084 China Research Center for Contemporary Management Tsinghua UniversityBeijing 100084 China

With the Internet connecting every part of the world, electronic marketplaces provide a world-wide transaction platform for global businesses. However, consumers from different countries demonstrate distinct purchasing behaviors online. This study uses eBay as the consumer-to-consumer electronic marketplace to investigate the eBay mechanisms and purchasing habits of consumers from the United States, France, and China to evaluate the effects of cultural and national differences on purchasing habits. This study uses data on national transactions and reputation profiles of sellers gathered from ***, ***, and ***, including both cross-sectional data and panel data to provide a comprehensive comparison of cultural behavior in the trading process as well as the influence of eBay＇s reputation management system on online pricing in these three countries. Significant differences confirm that purchasing behavior differs in various national consumer-to-consumer electronic marketplaces and the importance of cultural behavioral patterns.

关键词： consumer-to-consumer (C2C) electronic marketplace auction reputation system eBay cross-cultural comparison