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Chemometric analysis of femtosecond transient absorption spectroscopy data:Study of the photochromism of anils

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Science China(Physics,Mechanics & Astronomy) 2010年第6期53卷 1024-1035页

作者： Cyril RUCKEBUSCH nicolas MOUTON thomas GLADYTZ Anika RENDELMANN Guy BUNTINX Michel SLIWA LASIR CNRS UMR 8516Université de Lille1 Sciences et Technologiesbat C559655 Villeneuve d'Ascq cedexFrance

Chemometric methods are applied for the purpose of extracting relevant information from transient absorption spectroscopy data probing the photochromism of molecules from the family of salicylidene aniline. The process consists of an ultrafast excited state intramolecular proton transfer occurring from an enol form which is then followed by a cis-trans isomerization to finally reach a trans-keto photo-product. This work focuses on the potential of combining multivariate curve resolution for modeling pure profiles and two dimensional correlation spectroscopy data analysis for providing information on the dynamics of spectral features. The results obtained for one derivative of salicylidene aniline provide information regarding the number of species created after the proton transfer and characterization of their absorption spectra and their kinetics in the picosecond time scale. The spectral resolution of two cis-keto* forms is proposed for the first time. It is also found that both cis-keto* species are involved in the formation of the trans-keto photo-product. The main precursor of the trans-keto photo-product is the cis-keto* form which has the shortest characteristic time.

关键词： multivariate curve resolution two dimensional correlation spectroscopy femtosecond absorption proton transfer anils photochromism

Preemptive targeted muscle reinnervation:the single incision approach should be avoided in trans‑tibial traumatic amputation

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Military Medical Research 2023年第4期10卷 569-571页

作者： Laurent Mathieu Constance Diner Philippe Aries Marie thomas Stéphanie Truffaut nicolas de L’escalopier Department of Orthopedic Trauma and Reconstructive SurgeryPercy Military Hospital101 avenue Henri Barbusse92140 ClamartFrance French Military Hand Surgery Center Percy Military Hospital92140 ClamartFrance Department of Surgery Ecole du Val‑de‑GrâceFrench Military Health Service Academy75005 ParisFrance Department of Anesthesia and Intensive Care Clermont-Tonnerre Military Hospital29240 BrestFrance Department of Rehabilitation Medicine Percy Military Hospital92140 ClamartFrance Department of Rehabilitation Medicine National Institution of Invalids75007 ParisFrance.

Dear Editor,Chronic pain is a significant concern after major lower limb amputations that often preclude prosthetic fitting,decrease ambulation,and impact the quality of life[1,2].In the last decade,targeted muscle reinnervation(TMR)has been proposed as a surgical strategy for treating or preventing symptomatic neuromas and phantomlimb phenomena in major amputees[1].This technique involves the transfer of an amputated mixed-motor and sensory nerve to a nearby recipient motor nerve[1,2].Unlike most surgical strategies that aim to hide or protect the neuroma,TMR gives the amputated nerves“somewhere to go and something to do”[2].In a randomized clinical trial on neuroma and phantom pain,Dumanian et al.[1]demonstrated that TMR reduces amputationrelated chronic pain at 1-year post-intervention when compared with the excision and muscle-burying technique,which remains the current gold *** et al.[2]also proposed applying TMR at the time of major limb amputation for preventing chronic pain and found that TMR patients experienced less residual limb pain(RLP)and phantom limb pain(PLP)when compared with untreated amputee controls.

关键词： Heterotopic ossification Nerve transfer Targeted muscle reinnervation Trans-tibial amputation Trauma

A Novel Maximum Resolved Shear Stress Gradient Criterion and Its Application for Crack Deflection Behavior in Polycrystalline Silicon Materials

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Acta Mechanica Solida Sinica 2022年第3期35卷 518-526页

作者： Yangbo Zhang Qida Liu Qun Li Yangdong Ni Yuanjie Yu Jean-nicolas Jaubert Eric Lajoie-Mazenc Emmanuel Boyere Metais thomas Hong Zuo State Key Laboratory for Strength and Vibration of Mechanical Structures Shaanxi Key Laboratory of Environment and Control for Flight VehicleSchool of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China Canadian Solar Inc Guelph OntarioCanada R&D Centre EDF China Tianrun Fortune Center Tower AFI 8Rm.807No.58 Dongzongbu HutongDongcheng DistrictBeijing 100005China

In this paper,a development of new resolved shear stress gradient criteria is performed for the study of crack propagation behavior in polycrystalline materials with an emphasis on the effect of slip plane and slip *** prediction of crack deflection behavior by the maximum resolved shear stress gradient criterion shows good agreement with the experimental *** study for the prediction of crack propagation behavior in poly crystalline materials by other criteria demonstrates that the maximum resolved shear stress gradient criterion is superior to other fracture *** suggests that the new criterion could be further applied for predicting the crack deflection behavior in other polycrystalline materials.

关键词： Resolved shear stress gradient Crystal plasticity Crack deflection Polycrystalline silicon

A case of atypical neurological symptoms and high cerebro-spinal fluid acetone level due to transdermal exposure to isopropanol

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World Journal of Emergency Medicine 2023年第2期14卷 152-154页

作者： Côme Fruit Sophie Guillotin Marie Wolfrum thomas Lanot Florent Battefort Pierre Girardie Marie Rafiq nicolas Delcourt Poison Control Center Toulouse University HospitalToulouse 31509France Neurology Department Toulouse University HospitalToulouse 31509France Pharmacokinetics and Toxicology Laboratory Federative Institute of BiologyToulouse University HospitalToulouse 31509France Poison Control Center and INSERM 1214 Toulouse University HospitalToulouse 31509France

Dear editor, Isopropanol, also named 2-propanol or isopropyl alcohol(IPA), is a colorless, volatile liquid found in numerous household chemicals, such as cleaners and disinfectants, which typically contain a 70% solut... 详细信息

关键词： acetone typically alcohol

The cephalic labial gland secretions of two socially parasitic bumblebees Bombus hyperboreus （Alpinobombus） and Bombus inexspectatus （ Thoracobombus） question their inquiline strategy

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Insect Science 2018年第1期25卷 75-86页

作者： nicolas Brasero Baptiste Martinet thomas Lecocq Patrick Lhomme Paolo Biella Irena Valterova Klara Urbanova Maurizio Cornalba Heather Hines Pierre Rasmont Laboratory of Zoology Research institute of Biosciences University of Mons Mons Belgium Research Unit Animal and Functionalities of Animal Products (URAFPA) University of Lorraine--INRA Vandoeuvre-Ies-Nancy France Department of Biology the Pennsylvania State University University Park Pennsylvania USA Faculty of Science Department of Zoology University of South Bohemia Ceske Budejovice Czech Republic Biology Centre of the Academy of Sciences of the Czech Republic v.v.i Institute of Entomology Ceske Budejovice Czech Republic Academy of Sciences of the Czech Republic Institute of Organic Chemistry and Biochemistry Prague Czech Republic Faculty of Tropical AgriSciences Department of Sustainable Technologies Czech University of Life Sciences Prague Czech Republic Department of Mathematics University of Pavia Pavia Italy

Social parasitic Hymenopterans have evolved morphological, chemical, and behavioral adaptations to overcome the sophisticated recognition and defense systems of their social host to invade host nests and exploit their worker force. In bumblebees, so- cial parasitism appeared in at least 3 subgenera independently： in the subgenus Psithyrus consisting entirely of parasitic species, in the subgenus Alpinobombus with Bombus hy- perboreus, and in the subgenus Thoracobombus with B. inexspectatus. Cuckoo bumblebee males utilize species-specific cephalic labial gland secretions for mating purposes that can impact their inquiline strategy. We performed cephalic labial gland secretions in B. hyperboreus, B. inexspectatus and their hosts. Males of both parasitic species exhibited high species specific levels of cephalic gland secretions, including different main com- pounds. Our results showed no chemical mimicry in the cephalic gland secretions between inquilines and their host and we did not identify the repellent compounds already known in other cuckoo bumblebees.

关键词： bumblebees Bombus hyperboreus Bombus inexspectatus cephalic labial gland secretions inquiline strategy social parasitism

Chemical reproductive traits of diploid Bombus terrestris males： Consequences on bumblebee conservation

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Insect Science 2017年第4期24卷 623-630页

作者： thomas Lecocq Maxence Gerard Kevin Maebe nicolas Brasero Lauren Dehon Guy Smagghe Irena Valterova Thibaut De Meulemeester Pierre Rasmont Denis Michez Laboratory of Zoology Research Institute of Biosciences University of Mons Mons France Research Unit Animal and Functionalities of Animal Products (URAFPA) University of Lorraine - INRA Avenue de la Foret de Haye BP 172 F-54505 Vandoeuvre-les-Nancy France Department of Crop Protection Faculty of Bioscience Engineering Ghent University Coupure links 653 B-9000 Ghent Belgium Academy of Sciences of the Czech Republic Institute of Organic Chemistry and Biochemistry Flamingovo nam 2 CZ 166 10 Prague Czech Republic Naturalis Biodiversity Center Darwinweg 2 Postbus 9517 2300 RA Leiden the Netherlands

The current bumblebee decline leads to inbreeding in populations that fosters a loss of allelic diversity and diploid male production. As diploid males are viable and their offspring are sterile, bumblebee populations can quickly fall in a vortex of extinction. In this article, we investigate for the first time a potential premating mechanism through a major chemical reproductive trait （male cephalic labial gland secretions） that could prevent monandrous virgin queens from mating with diploid males. We focus our study on the cephalic labial gland secretions of diploid and haploid males ofBombus terrestris （L.）. Contrary to initial expectations, our results do not show any significant differentiation of cephalic labial gland secretions between diploid and haploid specimens. Queens seem therefore to be unable to avoid mating with diploid males based on their compositions of cephalic labial gland secretions. This suggests that the vortex of extinction of diploid males could not be stopped through premating avoidance based on the cephalic labial gland secretions but other mechanisms could avoid mating between diploid males and queens.

关键词： bee decline bumblebees conservation diploid males premating recogni-tion reproductive traits

Hepatitis C in Laos： A 7-Year Retrospective Study on 1765 Patients

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Virologica Sinica 2018年第4期33卷 295-303页

作者： Phimpha Paboriboune thomas Vial Philavanh Sitbounlang Stephane Bertani Christian Trepo Paul Deny Francois-Xavier Babin nicolas Steenkeste Pascal Pineau Eric Deharo Centre d'Infectiologie Lao-Christophe Merieux 3888 Vientiane Laos UMR 152 PHARMADEV IRD Universite de ToulouseUPS 31062 Toulouse France INSERM U1052 CNRS UMR 5286 Cancer Research Centre of Lyon 69008 Lyon France Universite Paris 13 Sorbonne Paris Cite Hopitaux Universitaires Paris Seine Saint Denis 93000 Bobigny France Fondation Merieux 69002 Lyon France INSERM U993 Institut Pasteur Unite 'Organisation Nucleaire et Oncogenese' 75015 Paris France

Hepatitis C virus （HCV） is a global health concern, notably in Southeast Asia, and in Laos the presentation of the HCV- induced liver disease is poorly known. Our objective was thus to describe a comprehensive HCV infection pattern in order to guide national health policies. A study on a group of 1765 patients formerly diagnosed by rapid test in health centres was conducted at the Centre of Infectiology Lao Christophe Merieux in Vientiane. The demographic information of patients, their infection status （viral load： VL）, liver function （aminotransferases） and treatments were analysed. Results showed that gender distribution of infected people was balanced; with median ages of 53.8 for men and 51.6 years for women （13-86 years）. The majority of patients （72%） were confirmed positive （VL 〉 50 IU/mL） and 28% of them had high VL （〉 61oglo）. About 23% of patients had level of aminotransferases indicative of liver damage （〉 40 IU/mL）; but less than 20% of patients received treatment. Patients rarely received a second sampling or medical imaging. The survey also showed that cycloferon, pegylated interferon and ribavirin were the drugs prescribed preferentially by the medical staff, without following any international recommendations schemes. In conclusion, we recommend that a population screening policy and better management of patients should be urgently implemented in the country, respecting official guidelines. However, the cost of biological analysis and treatment are significant barriers that must be removed. Public health resolutions should be immediately enforced in the perspective of meeting the WHO HCV elimination deadline by 2030.

关键词： Hepatitis C virus (HCV) HCV incidence Antiviral agents Laos

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线性化行为模型的迭代统计公差分析（英文）

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第5期16卷 353-360页

作者： Antoine DUMAS Jean-Yves DANTAN nicolas GAYTON thomas BLES Robin LOEBL Laboratoire Conception Fabrication Commande Arts et Métiers Paris Tech MetzMETZ CEDEX 357078France Institut Pascal Clermont UniversitéIFMAUMR 6602BP 10448Clermont-Ferrand 63000France

目的:分析由制造过程产生的变化对机构行为造成的影响。主要分析线性化方法对失败率估计的影响,从而平衡模型线性化造成的误差、计算时间和结果准确性。创新点:简化优化步骤,将机构行为线性化为几个部分,取代整体蒙特卡洛法,并采用一种... 详细信息

目的:分析由制造过程产生的变化对机构行为造成的影响。主要分析线性化方法对失败率估计的影响,从而平衡模型线性化造成的误差、计算时间和结果准确性。创新点:简化优化步骤,将机构行为线性化为几个部分,取代整体蒙特卡洛法,并采用一种迭代算法得到更加精确的结果。方法:1.采用带有非线性约束条件的几何线性化方法和基于失败率置信区间的算法(图3、4和5);2.以一个器件连接器为例,验证该算法在估计装配失败率上的作用。结论:1.线性化方法不影响蒙特卡洛仿真时间;2.线性化次数对计算时间和失败率估计准确率有很大影响(表1);3.线性化迭代统计方法相对于蒙特卡洛法在计算时间、计算精度和计算效率上有很大的优越性。

关键词：公差分析失败率行为模型线性化蒙特卡洛线性化

Robot-assisted radical cystectomy with neobladder diversion in females:Safety profile and functional outcomes

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Asian Journal of Urology 2024年第4期11卷 618-624页

作者： Andrea Pacchetti Alberto Caviglia Vito Lorusso nicolas Branger thomas Maubon Stanislas Rybikowski Davide Perri Giorgio Bozzini Geraldine Pignot Jochen Walz Division of Urology Sant'Anna HospitalSan Fermo della BattagliaComoItaly Department of Urology ASST Grande Ospedale Metropolitano NiguardaMilanItaly Division of Urology ASST Fatebenefratelli SaccoMilanItaly Department of Urology Institut Paoli-Calmettes Cancer CentreMarseilleFrance

Objective Radical cystectomy(RC)is a standard treatment for localized muscle invasive bladder cancer and high-risk or very high-risk non-muscle invasive bladder cancer not responding to adequate endovesical *** women,traditionally RC is performed with hystero-adnexectomy and resection of the anterior vaginal wall,often resulting in sexual ***-sparing techniques have been developed to improve functional *** present study explores the safety and the functional outcome of vaginal-sparing *** We retrospectively analyzed all consecutive female patients undergoing robot-assisted RC(RARC)with neobladder diversion between October 2017 and February *** indications for vaginal-sparing RC were absence of tumor on bladder neck or urethra and no sign of infiltration of posterior bladder wall at the preoperative *** results were evaluated with the aid of five questions out of the Bladder Cancer Index *** were reported according to the Clavien–Dindo classification and cancer control was evaluated by recurrence-free and cancer-specific *** A total of 22 female patients underwent RARC with neobladder *** chemotherapy was given in 17(77%)***–Dindo grades III–IV complications occurred in four(18%)*** a mean follow-up of 29(interquartile range 16–44)months,six(27.3%)patients developed distant metastases,and one(4.5%)woman loco-regional ***-sparing surgery was performed in 19(86%)patients,and in the others the anterior vaginal wall was resected,but neobladder was still *** daytime,no patients reported total incontinence and 73%(11/15)reported total continence or only occasional *** results showed that seven of 15(47%)women regained sexual activity after surgery,with a quality reported as“good”or“very good”in 40%of all 19 *** RARC in female with anterior vaginal wall preservation is *** approach showed

关键词： Sexual-sparing Robot-assisted radical cystectomy Female Functional outcome Continence Sexual function