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Medical management of metabolic and cardiovascular complications after liver transplantation

World Journal of Gastroenterology 2020年第18期26卷 2138-2154页

作者： Chiara Becchetti Melisa Dirchwolf Vanessa Banz jean-francois dufour Hepatology Department of Visceral Surgery and MedicineInselspitalUniversity Hospital BernBern CH-3008Switzerland Department of Biomedical Research University of BernBern CH-3008Switzerland Hepatology Hepatobiliary Surgery and Liver Transplant UnitHospital Privado de RosarioRosario S2000GAPSanta FeArgentina Department of Visceral Surgery and Medicine InselspitalUniversity Hospital BernBern CH-3008Switzerland Department of Clinical Research University of BernBern CH-3008Switzerland

Liver transplantation represents the only curative option for patients with endstage liver disease,fulminant hepatitis and advanced hepatocellular *** though major advances in transplantation in the last decades have achieved excellent survival rates in the early post-transplantation period,long-term survival is hampered by the lack of improvement in survival in the late post transplantation period(over 5 years after transplantation).The main etiologies for late mortality are malignancies and cardiovascular *** latter are increasingly prevalent in liver transplant recipients due to the development or worsening of metabolic syndrome and all its components(arterial hypertension,dyslipidemia,obesity,renal injury,etc.).These comorbidities result from a combination of pre-liver transplant features,immunosuppressive agent side-effects,changes in metabolism and hemodynamics after liver transplantation and the adoption of a sedentary *** this review we describe the most prevalent metabolic and cardiovascular complications present after liver transplantation,as well as proposing management strategies.

关键词： Solid organ transplantation Hypertension New-onset diabetes after transplantation Obesity Orthotopic liver transplantation Post-transplantation metabolic syndrome

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When lifestyles sign

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Hepatobiliary Surgery and Nutrition 2019年第1期8卷 69-71页

作者： Maria Guarino Cedric Bovet jean-francois dufour Hepatology Department for BioMedical ResearchUniversity of BernBernSwitzerland Gastroenterology Department of Clinical Medicine and SurgeryUniversity of Naples“Federico II”NaplesItaly University Institute of Clinical Chemistry InselspitalUniversity of BernBernSwitzerland University Clinic of Visceral Surgery and Medicine Inselspital BernBernSwitzerland

Nonalcoholic fatty liver disease(NAFLD)has a global prevalence of 25%,reflecting the global epidemic of obesity and diabetes(1).The onset and development of NAFLD are closely associated with dietary habits and lifestyle;consequently,lifestyle modifications including weight loss,increased physical activity,and dietary changes remain the treatment of choice for *** when drugs to treat non-alcoholic steatohepatitis will be available,lifestyle changes will remain an essential component of the therapeutic plan of these *** the last years,a strong association between lifestyle and hepatocellular carcinoma(HCC)has become evident(2-4).In patients with NAFLD,the annual incidence of HCC is 0.44 per 1,000 person/year and almost 50%of cases develops in a non-cirrhotic liver resulting in a diagnosis at an advanced stage with a worse prognosis(1,5).Nonetheless,the high prevalence of NAFLD with the relatively low risk for HCC makes a surveillance program cost-ineffective in non-cirrhotic patients(6).

关键词： NAFLD diagnosis drugs

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Sonography in surveillance for HCC in NAFLD patients

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Hepatoma Research 2022年第1期8卷 435-444页

作者： Pompilia Radu jean francois dufour Department of Visceral Surgery and Medicine InselspitalBern University HospitalUniversity of BernBern 3008Switzerland Department for BioMedical Research Visceral Surgery and MedicineUniversity of BernBern 3008Switzerland

Over the last decade,we have been facing a new aetiology responsible for the development of HCC-the nonalcoholic fatty liver disease(NAFLD).The prevalence of HCC development in this group is higher than that observed in the general population and in non-cirrhotic subjects with other causes of liver *** ultrasound(US)is the first-line tool for HCC surveillance,but,in this population,it has a decreased diagnostic accuracy due to several particular features,including obesity and ***-enhanced ultrasound(CEUS)appeared as a new branch of US due to its ability to depict the vascular architecture of all types of focal lesions(FLs).Nevertheless,CEUS has several limitations besides those inherited from US,which renders this method unreliable as the first-line HCC diagnostic tool and for HCC *** intelligence eliminates operator limitations,which has led to an increased sensitivity and specificity of ***,this approach is still in its early stages and more data are ***,the purpose of the current study is to highlight the strengths and limits of US,along with its alternatives to HCC screening in NAFLD population.

关键词： Non-alcoholic fatty liver disease hepatocellular carcinoma conventional ultrasound contrast-enhanced ultrasound artificial intelligence

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Design and Experimental Testing of a Moving Coil Actuator with Compensation Coil

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 707-716页

作者： Boyuan Yin Xianwu Zeng John Frederick Eastham Emelie Nilsson jean-francois Rouquette jean Rivenc Ludovic Ybanez Xiaoze Pei Department of Electronics&Electrical Engineering University of BathBathBA27AYUnited Kingdom Airbus UpNext BlangnacFrance Airbus CRT BlangnacFrance Department of Mechanical Engineering University of BathBathBA27AYUnited Kingdom

Hydrogen-powered electric aircraft have attracted significant interests aiming to achieve decarbonization *** DC electric networks are facing great challenges in DC fault protection *** interrupters are widely used in low voltage and medium voltage power systems due to being environmentally friendly with low *** this paper a moving coil actuator with compensation coils for a vacuum interrupter,as part of a hybrid direct current circuit breaker,is designed and experimentally *** coils are used to improve operating speed compared with original moving coil *** between four possible connections of compensation coils and original moving coil actuator are carried *** results show comparisons between different connections of actuator coils in terms of opening time and coil current with a range of pre-charged capacitor *** performance of each actuator connection is also *** actuator with compensation coils is shown to have a higher current rising rate and achieve faster opening speed,which is a critical requirement for electric aircraft network *** parallel connection actuator achieves the highest opening speed within 3.5 ms with capacitor voltage of 50 V.

关键词： Circuit breaker compensation coil moving coil actuator vacuum interrupter

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From Control Theory to Gravitational Waves

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Advances in Pure Mathematics 2024年第2期14卷 49-100页

作者： jean-francois Pommaret CERMICS Ecole des Ponts Paris Tech Paris France

When D:ξ→η is a linear ordinary differential (OD) or partial differential (PD) operator, a “direct problem” is to find the generating compatibility conditions (CC) in the form of an operator D1:η→ξ such that Dξ = η implies D1η = 0. When D is involutive, the procedure provides successive first-order involutive operators D1,...,Dn when the ground manifold has dimension n. Conversely, when D1 is given, a much more difficult “inverse problem” is to look for an operator D:ξ→η having the generating CC D1η = 0. If this is possible, that is when the differential module defined by D1 is “torsion-free”, that is when there does not exist any observable quantity which is a sum of derivatives of η that could be a solution of an autonomous OD or PD equation for itself, one shall say that the operator D1 is parametrized by D. The parametrization is said to be “minimum” if the differential module defined by D does not contain a free differential submodule. The systematic use of the adjoint of a differential operator provides a constructive test with five steps using double differential duality. We prove and illustrate through many explicit examples the fact that a control system is controllable if and only if it can be parametrized. Accordingly, the controllability of any OD or PD control system is a “built in” property not depending on the choice of the input and output variables among the system variables. In the OD case and when D1 is formally surjective, controllability just amounts to the formal injectivity of ad(D1), even in the variable coefficients case, a result still not acknowledged by the control community. Among other applications, the parametrization of the Cauchy stress operator in arbitrary dimension n has attracted many famous scientists (G. B. Airy in 1863 for n = 2, J. C. Maxwell in 1870, E. Beltrami in 1892 for n = 3, and A. Einstein in 1915 for n = 4).

关键词： Differential Operator Differential Sequence Killing Operator Riemann Operator Bianchi Operator Cauchy Operator Control Theory Controllability Elasticity General Relativity

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Hepatocyte apoptosis fragment product cytokeratin-18 M30 level and non-alcoholic steatohepatitis risk diagnosis:an international registry study

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Chinese Medical Journal 2023年第3期136卷 341-350页

作者： Huai Zhang Rafael S.Rios Jerome Boursier Rodolphe Anty Wah-Kheong Chan Jacob George Yusuf Yilmaz Vincent Wai-Sun Wong Jiangao Fan jean-francois dufour George Papatheodoridis Li Chen Jorn M.Schattenberg Junping Shi Liang Xu Grace Lai-Hung Wong Naomi F.Lange Margarita Papatheodoridi Yuqiang Mi Yujie Zhou Christopher D.Byrne Giovanni Targher Gong Feng Minghua Zheng Department of Biostatistics and Medical Record The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang 325000China Department of Hepatology MAFLD Research CenterThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang 325000China Service d’Hépato-Gastroentérologie et Oncologie Digestive Centre Hospitalier Universitaire d’AngersAngersFrance Laboratoire HIFIH UPRES EA3859SFR ICAT 4208Universitéd’AngersAngersFrance Université Cote d’Azur CHUINSERMU1065C3M06204 NiceFrance Gastroenterology and Hepatology Unit Department of MedicineFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneySydneyNSWAustralia Department of Gastroenterology School of MedicineMarmara UniversityIstanbulTurkey Department of Gastroenterology School of MedicineRecep Tayyip Erdogan UniversityRizeTurkey Department of Medicine and Therapeutics The Chinese University of Hong KongHong Kong 999077China Department of Gastroenterology Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200000China University Clinic for Visceral Surgery and Medicine InselspitalUniversity Hospital BernBernSwitzerland Graduate School for Health Sciences University of BernBernSwitzerland Academic Department of Gastroenterology Medical School of National and Kapodistrian University of AthensGeneral Hospitalof Athens“Laiko”AthensGreece Department of Gastroenterology Ruijin HospitalShanghai 200000China Metabolic Liver Research Program I Department of MedicineUniversity Medical Center MainzMainzGermany The Affiliated Hospital of Hangzhou Normal University HangzhouZhejiang 310000China Tianjin Second People’s Hospital Tianjin 300000China Division of Gastroenterology and Hepatology Key Laboratory of Gastroenterology and HepatologyMinistry of HealthRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Institute of Digestive DiseaseShanghai 200000Ch

Background:Liver biopsy for the diagnosis of non-alcoholic steatohepatitis(NASH)is limited by its inherent invasiveness and possible sampling *** studies have shown that cytokeratin-18(CK-18)concentrations may be useful in diagnosing NASH,but results across studies have been *** aimed to identify the utility of CK-18 M30 concentrations as an alternative to liver biopsy for non-invasive identification of ***:Individual data were collected from 14 registry centers on patients with biopsy-proven non-alcoholic fatty liver disease(NAFLD),and in all patients,circulating CK-18 M30 levels were *** with a NAFLD activity score(NAS)≥5 with a score of≥1 for each of steatosis,ballooning,and lobular inflammation were diagnosed as having definite NASH;individuals with a NAS≤2 and no fibrosis were diagnosed as having non-alcoholic fatty liver(NAFL).Results:A total of 2571 participants were screened,and 1008(153 with NAFL and 855 with NASH)were finally *** CK-18 M30 levels were higher in patients with NASH than in those with NAFL(mean difference 177 U/L;standardized mean difference[SMD]:0.87[0.69–1.04]).There was an interaction between CK-18 M30 levels and serum alanine aminotransferase,body mass index(BMI),and hypertension(P<0.001,P=0.026 and P=0.049,respectively).CK-18 M30 levels were positively associated with histological NAS in most *** area under the receiver operating characteristics(AUROC)for NASH was 0.750(95%confidence intervals:0.714–0.787),and CK-18 M30 at Youden’s index maximum was 275.7 U/*** sensitivity(55%[52%–59%])and positive predictive value(59%)were not ***:This large multicenter registry study shows that CK-18 M30 measurement in isolation is of limited value for non-invasively diagnosing NASH.

关键词： Apoptosis Diagnosis Cytokeratin-18 Liver histology Non-alcoholic steatohepatitis Non-alcoholic fatty liver disease

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构建安全连接,筑牢通信行业高质量发展底座

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数字经济 2024年第4期 93-95页

作者： jean-francois Ouillet 泰雷兹集团

身处数字化时代,以新一代信息通信技术为核心的物联网(IoT)正在重塑各行各业,为数字经济发展注入强劲动力;同时,也在改变着每个人与周围世界互动的方式,为日常生活带来更多便捷选择。物联网不断为行业数字化转型提供新支撑、为数字经济... 详细信息

身处数字化时代,以新一代信息通信技术为核心的物联网(IoT)正在重塑各行各业,为数字经济发展注入强劲动力;同时,也在改变着每个人与周围世界互动的方式,为日常生活带来更多便捷选择。物联网不断为行业数字化转型提供新支撑、为数字经济发展拓展新空间,整个市场也在持续探索更灵活便捷、安全可靠的连接方式,以应对新挑战。

关键词：信息通信技术通信行业数字化转型数字化时代安全连接强劲动力灵活便捷连接方式

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21世纪全球新建水库编目:丰度、热点区及总蓄水量

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Science Bulletin 2024年第14期69卷 2179-2182页

作者：范晨雨宋春桥 Jida Wang Yongwei Sheng 蔺亚玲苑春雨 Md Safat Sikder jean-francois Crétaux 刘凯陈探曾繁轩柯灵红 Key Laboratory of Watershed Geographic Sciences Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China University of Chinese Academy of Sciences Nanjing(UCASNJ)Nanjing 211135China Department of Geography and Geographic Information Science University of Illinois Urbana-ChampaignUrbana IL 61801USA Department of Geography and Geospatial Sciences Kansas State UniversityManhattan KS 66506USA Department of Geography University of CaliforniaLos Angeles CA 90095USA Laboratoire d’Études en Géophysique et Océanographie Spatiales(LEGOS) CNES-IRD-CNRS-UT3Universitéde ToulouseToulouse 31401France College of Hydrology and Water Resources Hohai UniversityNanjing 210098China State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China

Dams and reservoirs play an essential role in regulating and managing water *** the middle of the 20th century,the growing demand for water and hydropower has led to an unprecedented boom in reservoir construction worldwide[1,2].Meanwhile,reservoir construction has also resulted in a variety of ecological and socioeconomic impacts[3–5].Reservoirs transform natural flow regimes into conditions favored by human *** associated flow regulations,especially in reservoirs constructed in recent decades(e.g.,after 2000)with greater seasonal variability[6,7],represent a strong human-induced alteration of the hydrologic *** reservoir construction continues to boom in many parts of the world,an up-to-date and openaccess inventory of reservoirs worldwide remains critically desired.

关键词： reservoir reservoirs alteration

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Application of near-infrared spectroscopy for fast germplasm analysis and classification in multi-environment using intact-seed peanut(Arachis hypogaea L.)

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Oil Crop Science 2024年第2期9卷 132-141页

作者： Fentanesh Chekole Kassie Gilles Chaix Hermine Bille Ngalle Maguette Seye Coura Fall Hodo-Abalo Tossim Aissatou Sambou Olivier Gibert Fabrice Davrieux Joseph Martin Bell jean-francois Rami Daniel Fonceka Joel Romaric Nguepjop Department of Plant Biology and Physiology Faculty of SciencesUniversity of Yaounde IYaoundeP.O.Box 337Cameroon Department of Plant Science College of AgricultureWolaita Sodo UniversitySodoP.O.Box 138Ethiopia CIRAD UMR AGAP InstitutMontpellierFrance AGAP Institut Univ MontpellierCIRADINRAEInstitut AgroMontpellierFrance ChemHouse Research Group MontpellierFrance Centre D’Etudes Regional Pour L’Amelioration de L’Adaptation a La Secheresse(CERAAS/ISRA) Route de KhomboleThiesBP 3320Senegal Dispositif de Recherche et de Formation en Partenariat Innovation et Amelioration Varietale en Afrique de L’Ouest(IAVAO)CERAASRoute de KhomboleThiesBP 3320Senegal CIRAD UMR QUALISUDSaint PierreFrance

Peanut is a worldwide oilseed crop and the need to assess germplasm in a non-destructive manner is important for seed nutritional *** this study,Near Infrared Spectroscopy(NIRS)was applied to rapidly assess germplasm variability from whole seed of 699 samples,field-collected and assembled in four genetic and environmentbased sets:one set of 300 varieties of a core-collection and three sets of 133 genotypes of an interspecific population,evaluated in three environments in a large spatial scale of two countries,Mbalmayo and Bafia in Cameroon and Nioro in Senegal,under rainfed *** elemental spectra were gathered on six subsets of seeds of each sample,after three rotation scans,with a spectral resolution of 16 cm-1over the spectral range of867 nm to 2530 *** were then processed by principal component analysis(PCA)coupled with Partial least squares-discriminant analysis(PLS-DA).As results,a huge variability was found between varieties and genotypes for all NIR wavelength within and between *** magnitude of genetic variation was particularly observed at 11 relevant wavelengths such as 1723 nm,usually related to oil content and fatty acid *** yielded the most chemical attributes in three significant PCs(i.e.,eigenvalues>10),which together captured 93%of the total variation,revealing genetic and environment structure of varieties and genotypes into four clusters,corresponding to the four samples *** pattern of genetic variability of the interspecific population covers,remarkably half of spectrum of the core-collection,turning out to be the ***,a PLS-DA model was developed and a strong accuracy of 99.6%was achieved for the four sets,aiming to classify each seed sample according to environment *** confusion matrix achieved for the two sets of Bafia and Nioro showed 100%of instances classified correctly with 100%at both sensitivity and specificity,confirming that their seed quality was different f

关键词： Groundnut Oilseed Near infrared spectroscopy Germplasm analysis Environment Nutritional Breeding

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在临床研究中,索磷布韦/维帕他韦用于伴随使用质子泵抑制剂的患者时安全有效

在临床研究中,索磷布韦/维帕他韦用于伴随使用质子泵抑制剂的患者...

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第十届全国疑难及重症肝病大会

作者： Rafael Esteban Kosh Agarwal Jose Luis Calleja jean francois dufour Steven L.Flamm Stuart C.Gordon Luisa Stamm Liyun Ni Diana Brainard Kris V.Kowdley Curtis Cooper Juan Antonio Pineda Lluis Castells Maria Buti Sabela Lens UniversityofBarcelona SwedishMedicalCenter GileadSciencesInc. HospitalUniversitariValld’Hebron GileadSciences Inc. VallD’hebronUniversityHospital NorthwesternUniversityHealthSystem HospitalUniversitarioPuertaDeHierro HospitalUniversitarioVirgenDeValme UniversityofBern LiverUnit InternalMedicineDepartmentHospitalUniversitariVallDeHebrón InstituteofLiverStudies King’sCollegeHospitalNHSTrust HenryFordHealthSystem TheOttawaHospital

背景在1期药物相互作用数据可用之前,在有关索磷布韦/维帕他韦(SOF/VEL)的临床试验中禁止伴随使用质子泵抑制剂(PPI)。之后的临床研究允许使用最多20mg的奥美拉唑或等效剂量的药物。本分析评估了接受12周的SOF/VEL治疗并且报告伴随使用...

背景在1期药物相互作用数据可用之前,在有关索磷布韦/维帕他韦(SOF/VEL)的临床试验中禁止伴随使用质子泵抑制剂(PPI)。之后的临床研究允许使用最多20mg的奥美拉唑或等效剂量的药物。本分析评估了接受12周的SOF/VEL治疗并且报告伴随使用PPI的伴有和不伴有代偿期肝硬化的患者的疗效和安全性。

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