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Longitudinal trajectories of athlete burnout among young table tennis players: A 3-wave study

Journal of Sport and Health Science 2020年第4期9卷 367-375页

作者： Guillaume Martinent benoıt louvet Jean-Claude Decret Laboratory of Vulnerabilities and Innovation in Sport Claude Bernard University Lyon 1Villeurbanne 69622France Center of Research of transformations of Sports and Physical Activities(CEtAPS) University of RouenMont-Saint-Aignan 76821France French Federation of table tennis Paris 75625France

Purpose:the purposes of this study were to examine the trajectories of athlete burnout across a 2-month period characterized by high physical,psychological,and social demands to explore(1)whether several subgroups of athletes representing distinct burnout trajectories emerged from the analyses and(2)whether athlete burnout symptoms(reduced accomplishment,sport devaluation,and exhaustion)developed in tandem or whether some burnout dimensions predicted downstream changes in other dimensions(causal ordering model).Methods:One hundred and fifty-nine table tennis players in intensive training centers completed a self-reported athlete burnout measure across 3 time points within a 2-month period characterized by high *** were analyzed through latent class growth ***:Results of latent class growth analysis showed 3 distinct trajectories for each athlete burnout dimension,indicating not only linear or quadratic change but also stability in longitudinal athlete burnout *** also suggested that the 3 dimensions of athlete burnout did not develop in ***,the likelihood of belonging to particular emerging trajectories of sport devaluation and physical/emotional exhaustion was significantly influenced by the athletes’perception of reduced accomplishment assessed at time ***,reduced accomplishment predicted downstream changes in the 2 other athlete burnout ***:As a whole,these results highlighted that the multinomial heterogeneity in longitudinal athlete burnout symptoms needs to be accounted for in future research.

关键词： Athlete burnout Intensive training Latent class growth analyses Person-centered approach table tennis Youth elite athletes

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FOLFIRI regimen in metastatic pancreatic adenocarcinoma resistant to gemcitabine and platinum-salts

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World Journal of Gastroenterology 2012年第33期18卷 4533-4541页

作者： Cindy Neuzillet Olivia Hentic benot Rousseau Vinciane Rebours Léla Bengrine-Lefèvre Franck Bonnetain Philippe Lévy Eric Raymond Philippe Ruszniewski Christophe louvet Pascal Hammel Service de Gastroentérologie-Pancréatologie Hpital Beaujon 100 Boul-evard du Général Leclerc 92110 Clichy La Garenne AP-HP France Service d'Oncologie Médicale Hpital Saint Antoine 184 Rue du Faubourg Saint-Antoine 75012 Paris AP-HP France Unité de Biostatistique et d'Epidémiologie EA 4184 Centre Georges Franois Leclerc 1 Rue du Pr Marion 21079 Dijon France Service d'Oncologie Médicale Hpital Beau-jon 100 Boulevard du Général Leclerc 92110 Clichy La Garenne AP-HP France Département d'Oncologie Médicale Institut Mutualiste Montsouris 42 Boulevard Jourdan 75014 Paris France

AIM: to evaluate the efficacy and safety of the FOLFIRI regimen in patients with metastatic pancreatic adenocarcinoma (PAC) after the failure of gemcitabine and platinum salts. MEtHODS: All consecutive patients with histologically confirmed, metastatic PAC and World Health Organiza-tion performance status (PS) ≤ 2 received FOLFIRI-1 [irinotecan 180 mg/m2 on day 1 and leucovorin 400 mg/m2 followed by 5-fluorouracil (5-FU) 400 mg/m2 bolus, then 5-FU 2400 mg/m2 as a 46-h infusion, biweekly] or FOLFIRI-3 (irinotecan 100 mg/m2 on day 1 and leucovorin 400 mg/m2, then 5-FU 2400 mg/m2 as a 46-h infusion and irinotecan 100 mg/m2 repeated on day 3, biweekly) after failure of gemcitabine and platinum-based chemotherapies as a systematic policy in two institutions between January 2005 and May 2010. tumor response, time to progression (ttP), overall survival rate (OS) and grade 3-4 toxicities were retrospectively studied. Subgroup analyses were performed to search for prognostic factors. RESULtS: Sixty-three patients (52.4% male, median age 59 years) were analyzed. Among them, 42.9% were PS 0, 38.1% were PS 1 and 19.0% were PS 2. Fifty one patients (81.0%) had liver metastases. Before the FOLFIRI regimen, patients had received 1 line (n = 19), 2 lines (n = 39) or 3 lines (n = 5) of chemotherapy. Median ttP obtained with the line before FOLFIRI was 3.9 mo (95% CI: 3.4-5.3 mo). A total of 480 cycles was completed (median: 6 cycles, range: 1-51 cycles). the main reason for discontinuing FOLFIRI was tumor progression (90.3%). tumor control was achieved in 25 patients (39.7%) (partial response: n = 5, stable disease: n = 20) with FOLFIRI. Median ttP was 3.0 mo (95% CI: 2.1-3.9 mo) and median OS was 6.6 mo (95% CI: 5.3-8.1 mo). Dose adaptation was required in 36 patients (57.1%). Fifteen patients (23.8%) had grade 3-4 toxicities, mainly hematological (n = 11) or digestive (n = 4). Febrile neutropenia occurred in 3 patients. there was no toxic death. PS 2 was significantly associated w

关键词： Pancreatic cancer Pancreatic adenocarcinoma Metastases Chemotherapy 5-fluorouracil Irinotecan Camptothecin FOLFIRI regimen

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应用双层探测器光谱Ct及三物质分离算法进行肝脏脂肪定量

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国际医学放射学杂志 2024年第4期 501-502页

作者： E.Demondion O.Ernst A.louvet B.Robert G.Kafri E.Langzam 常雪

摘要目的以MRI作为参考标准，在大型病人队列中评估通过双层探测器光谱Ct(DL-Ct)的三物质分离算法测量肝脏脂肪含量的可行性。方法回顾性纳入104例病人，每

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Generation of a Double KO Mouse by Simultaneous targeting of the Neighboring Genes tmem176a and tmem176b Using CRISPR/Cas9:Key Steps from Design to Genotyping

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Journal of Genetics and Genomics 2016年第5期43卷 329-340页

作者： Aurélie Lemoine Gaёlle Chauveau-Le Friec Francina Langa Cédric louvet INSERM UMR 1064 Center for Research in Transplantation and ImmunologyUniversité de NantesCHU NantesInstitut de Transplantation Urologie Néphrologie(ITUN) Institut Pasteur Plate-Forme Technologique Centre d'Ingénierie Génétique Murine

the CRISPR/Cas9 system has been tailored to a revolutionary genetic tool because of its remarkable simplicity and *** complex genome editing in the mouse since the 1990 s has been dominated by the use of embryonic stem（ES） cells,CRISPR/Cas9 now offers a versatile and fast approach to precisely modify virtually any DNA regions directly in mouse ***,this relative simplicity does not preclude a conscientious preparatory work that is often neglected when initiating a ***,we describe the key steps leading to successful generation of a double knockout（KO） mouse by simultaneously targeting two homolog genes,tmem176 a and tmem176 b,which are located in the same genomic ***,we show that similar efficiency can be obtained in a mixed genetic background or directly in the C57BL/6 inbred ***,presented as a detailed case study that should be helpful to the non-specialists,we focus on the genotyping strategy to anticipate the various possibilities.

关键词： CRISPR/Cas9 C57BL/6 Double KO Genotyping NHEJ Deletion Inversion Off-targets Mosaicism

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Emotions and performance in rugby

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Journal of Sport and Health Science 2019年第6期8卷 595-600页

作者： Mickael Campo Stéphane Champely Andrew MLane Elisabeth Rosnet Claude Ferrand benoit louvet SPMS(EA 4180) UBFCDijon 21078France Laboratory for Vulnerabilities and Innovation in Sport(L-VIS EA 7428)University of Lyon 1Villeurbanne 69622France Institute of Sport Faculty of EducationHealth and Well-beingUniversity of WolverhamptonWs13BDUK Faculty of Sport Sciences Universitéde Reims Champagne-ArdenneReims 51096France Research team of Psychology of Ages of Life(EA 2114) University Francois RabelaisTours 37041France CEtAPS(EA 3832) Normandie UniversitéMont Saint Aignan 76821France

Purpose:this study investigated emotion-performance relationships in rugby *** identified which emotions rugby players experienced and the extent to which these emotions were associated with performance,considering how emotions unfold over the course of a game,and whether the game was played at home or ***:Data were gathered from 22 professional male rugby union players using auto-confrontation interviews to help identify situations within games when players experienced intense *** assessed the intensity of emotions experienced before each discrete performance and therefore could assess the emotion-performance relationship within a ***:Players identified experiencing intense emotions at 189 *** in rugby union rated the quality of each performance at these 189 time-points on a visual analog scale.A Linear Mixed Effects model to investigate emotion-performance relationships found additive effects of game location,game time,and emotions on individual ***:Results showed 7 different pre-performance emotions,with high anxiety and anger associating with poor *** research should continue to investigate emotion-performance relationships during performance using video-assisted recall and use a measure of performance that has face validity for players and coaches alike.

关键词： Emotion Game location Game time Linear Mixed Effects model Multilevel analysis Performance assessment team sport

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An in silico model of the role of elastin on geometry and biomechanical properties of artery in Williams Beuren Syndrome

An in silico model of the role of elastin on geometry and bi...

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2008第十一次全国临床药理学学术大会

作者：华潞 V louvet E Grenier F Gueyffier B Kassai Inserm CIC201EPICIMLyonF-69000 France

INtRODUCtION Elastin haploinsufficiency is seemingly responsible for the arteriopathy with generalized thickened arterial wall and localized stenosis,the common trait and the most important cause of mortality and mor- bidity of Williams-Beuren syndrome(WBS).We explore the idea that the phenotypic variability associated with ar-

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Physicochemical Characteristics of Some Cameroonian Pozzolans for Use in Sustainable Cement Like Materials

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Materials Sciences and Applications 2013年第1期4卷 14-21页

作者： Ndigui Billong Uphie Chinje Melo Daniel Njopwouo François louvet Jean Pierre Bonnet Materials Analysis Laboratory YaoundéCameroon Physico-Chemistry of Mineral Materials Laboratory University of YaoundéIYaoundéCameroon Groupe d’Etude des Matériaux Hétérogènes Ecole Nationale Supérieure de Céramique IndustrielleLimogesFrance

In the present study, physico-chemical investigations have been carried out on the possibility of using Cameroonian volcanic or clay pozzolans as raw material for geopolymer or pozzolanic binder. the research had made some suggestive results and conclusions. Powders of less than 100 μm of five sampled pozzolans from volcanic or clay origins have been subjected to chemical and mineralogical analysis, BEt specific surface, absolute density, granulometry and pozzolanic activity in solution tests. the results obtained showed that, geopolymers or pozzolanic binders can be produced from samples studied. the samples contain significant amounts of glassy or amorphous phase ready to dissolve in an alkaline solution. the high alkali content of volcanic pozzolans makes them more appropriate for geopolymer application. Clay pozzolans are the easier to grind in order to obtain the appropriate fineness and can be used for both geo- polymers and pozzolanic binders.

关键词： Pozzolan Characteristic Geopolymer Supplementary Cementing Material Cameroon

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织物夹具的蠕变变形及失效行为研究

织物夹具的蠕变变形及失效行为研究

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作者：卢伟（Boulingui Bu Ikapi louvet Darhel）东华大学

学位级别：硕士

拉幅机广泛应用于织物的染色,漂白和印花工序,作用是沿幅宽方向对织物进行拉伸。织物夹具(布铗)作为拉幅定型机、丝光机中广泛使用的部件,承担着使织物有较好的定型效果,避免出现“荷叶边”、“破边”等缺陷的作用。但是,布铗在使用过程... 详细信息

拉幅机广泛应用于织物的染色,漂白和印花工序,作用是沿幅宽方向对织物进行拉伸。织物夹具(布铗)作为拉幅定型机、丝光机中广泛使用的部件,承担着使织物有较好的定型效果,避免出现“荷叶边”、“破边”等缺陷的作用。但是,布铗在使用过程中,处于高温、反复拉幅张力的作用,在未到使用期限前就出现了脱铗失效现象,提前报废。因此,无论是布铗的生产企业,还是使用厂家,都关注该部件的失效现象,研究延长使用寿命的措施。本论文结合试验数据,主要采用有限元法分析某机械制造公司提供的布铗及高温(230℃)、持续工作条件(260天以上)工艺条件,从材料、加工安装方式、使用工况等方面研究布铗的失效行为。主要工作如下:1.对2种不同类型的织物试样,分别沿经向、纬向进行不同张力的拉伸试验。以布铗对称模型为研究对象,假设轻微磨损会影响布铗轴孔和夹体之间的滑动接触,采用ABAQUS软件分析拉幅力(100N、200N、300N)在不同刀铗形状曲线下,对织物接触压力分布的影响,并分析夹持角与夹持牢度的关系。2.根据传热理论,确定高温布铗的热传导方式,边界条件及热载荷施加形式。通过瞬态温度—结构耦合方法模拟了定型温度下,布铗的温度场、热应力及热变形分布状况。分析不同的刀铗主体轴孔与销轴的装配方式(间隙配合和过盈配合)对刀铗和底板变形后空间位置的影响,进一步分析夹持牢度。3.在230℃高温及各种拉力(100N、200N、300N)条件下,模拟分析了布铗主体轴孔蠕变变形。仿真结果表明,主体轴孔的蠕变变形随时间的增加而增大。在不同时间段(50天,200天,260天),利用CMM试验机对同意类型的布铗进行了尺寸变化和变形测试。将布铗主体轴孔的尺寸变化测试数据与布铗主体轴孔的蠕变变形数值分析进行比较,测试结果和数值结果表现出很好的一致性。4.分析引起布铗失效的蠕变、机械载荷和热变形等主要因素,提出了延长布铗使用寿命的措施。在高温及恒定拉幅力300N的条件下,结合解析法和有限元法,计算了布铗的可能失效时间。

关键词：布铗蠕变变形失效行为有限元法

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联合肝病评分系统的数据能更好的预测酒精性肝炎患者的预后

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临床肝胆病杂志 2015年第10期31卷 1583-1583页

作者： Alexandre louvet 朱晓佳杨力江西省景德镇市第三人民医院消化内科

已有多种模型可用于判定酒精性肝炎患者的预后,包括静态系统[Maddrey判别函数;年龄,胆红素,国际标准化比值,肌酐（ABIC）评分;终末期肝病模型（MELD）评分]与动态模型（Lille模型）。为了结合所有这些模型的特点,提出一个更好的预测酒... 详细信息

已有多种模型可用于判定酒精性肝炎患者的预后,包括静态系统[Maddrey判别函数;年龄,胆红素,国际标准化比值,肌酐（ABIC）评分;终末期肝病模型（MELD）评分]与动态模型（Lille模型）。为了结合所有这些模型的特点,提出一个更好的预测酒精性肝炎患者预后的方法。Alexandre等从多个数据库收集数据,这些数据来源于法国和英国经皮质类固醇治疗的重度酒精性肝炎患者,

关键词：酒精性肝炎 Lille 终末期肝病模型国际标准化比值静态系统动态模型皮质类固醇效应模型肌酐判别函数

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