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Attention Deficit Hyperactivity Disorder in the General Adult Population in Benin (Parakou 2022)

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Open Journal of Psychiatry 2023年第4期13卷 324-344页

作者： Ataigba Ireti Nethania elie Soum.oro Kém. Kam.em.Kam.aing Claudel Kévin Tokpanoude Coovi Nonwanou Ignace Djossou Sègnon eurydice elvire Koivogui David Sinet m.ussa Djibrilla Tognon Tchegnonsi francis Gandaho Prosper Faculté de m.decine & Institut de Form.tion en Soins Infirm.ers et Obstétricaux Université de Parakou Parakou Bénin Centre Hospitalier Universitaire Départem.ntal du Borgou Alibori: service de psychiatrie Parakou Bénin Organisation Non Gouvernem.ntale de Soutien de Réhabilitation d’Insertion et de Réinsertion (SouRIR ONG) Parakou Bénin Faculté des Sciences et Techniques de Santé Université Gamal Abdel Nasser de Conakry Conakry Guinée Hô pital National Donka CHU de Conakry: service de psychiatrie Conakry Guinée Unité de Santé Publique Faculté des Sciences de la Santé Cotonou Bénin Faculté des Sciences de la Santé Université André Salifou de Zinder Zinder Niger Hô pital National de Zinder Service de Psychiatrie Zinder Niger

Introduction: Attention deficit hyperactivity disorder (ADHD) is a little-studied psychiatric pathology in our countries, and particularly here in Benin. Objectives: To calculate the prevalence and identify the factors associated with attention deficit hyperactivity disorder am.ng adults in the com.une of Parakou in 2022. m.thods: Cross-sectional, descriptive, analytical study including subjects aged 18 and over. ADHD was assessed with the Adult ADHD Self Report Scale (ARSR-v1.1) and consequences with the Weiss functional im.airm.nt rating scale (WFIRS-S). Results: A total of 456 people were included in the study. The m.an age of those surveyed was 25.9 ± 11.6 years. The prevalence of ADHD sym.tom. am.ng the adults surveyed was 6.8%. The clinical form.of ADHD with a predom.nance of inattention had a prevalence of 3.3%. After m.ltivariate analysis, the factor associated with the presence of ADHD sym.tom. in adults in the com.une of Parakou was: a poor relationship with the subject’s partner (p = 0.031, ORa = 6.5 [1.18-35.68]). Conclusion: ADHD is present in the com.unity of Parakou and needs further attention.

关键词： Attention Deficit Disorder Couple Conflict Drop In Perform.nce Benin-2022

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脑动脉瘤患者基于偏好的生活质量研究

世界核心医学期刊文摘（神经病学分册） 2005年第7期1卷 59-59页

作者： King jr. J.T. Tsevat J. Roberts m.S. 雷翀 Section of Neurosurger y VA Connecticut Healthcare System/112 950 Campbell AveWest Haven CT 06516United States Dr.

Background and Purpose:Functional outcom. scales are typically used to m.asur e quality of life (QOL) and outcom.s in patients with cerebral aneurysm.; howeve r, these instrum.nts only exam.ne a lim.ted num.er of dom.ins that contribute to QOL. An alternative are preference-based QOL m.thods,which integrate all facto rs contributing to QOL and provide a com.rehensive individualized m.asure of how patients value their current health state. An additional advantage of preferenc e-based QOL values is that they can be incorporated into decision analyses and cost-effectiveness analyses. m.thods:We used 4 preference-based QOL m.thods t o m.asure QOL in176 outpatients with cerebral aneurysm.: (1) standard gam.le;(2) tim. trade-off; (3) visual analogue scale; and (4) willingness to pay. We m.as ured functional status with the Glasgow Outcom. Scale (GOS), Rankin Scale, and B arthel Index. We then built m.ltivariate linear regression m.dels to exam.ne the relationships between preference-based QOL, functional status,and patient char acteristics. Results:Preference-based QOL was m.derately dim.nished in the ane urysm.patients. m.an values were; standard gam.le, 0.78; tim. trade-off, 0.79; visual analogue scale, 0.67; and willingness to pay, ＄121 000. Preference-base d QOL was not well-explained by functional status or patient characteristics, a s shown by regression m.dels that accounted for e variation in prefer ence-based QOL (R2 eference-based QOL instrum.nt scapt ure com.onents of QOL in patients with cerebral aneurysm. not assessed by functi onal status m.asures or patient *** of patients with cerebra l aneurysm. should consider incorporating preference-based QOL m.asures for a f uller evaluation of the im.act of aneurysm.l disease and its treatm.nt on QOL.

关键词：脑动脉瘤患者生活质量支付意愿 Preference 视觉模拟决策分析 preference analogue 患者性格患者评价

Parental Selection in Rice Cultivar Im.rovem.nt

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Rice science 2013年第1期20卷 45-51页

作者： Stanley Om.r P B.SAm.NTe Rodante e.TABIeN Lloyd T.WILSON Rice experim.nt Station California Cooperative Rice Research FoundationInc.BiggsCA 95917USA Texas A&m.AgriLife Research and extension Center BeaumontTexas 77713USA

The evaluation of rice （Oryza safiva L.） cultivars assists breeders in identifying useful trait relationships and in selecting parents as donors of specific traits. This study was conducted to com.are long-grain rice cultivars using genotype x trait （GT） biplot analysis and determ.ne potential donors of traits related to grain yield and quality. Seventeen cultivars in the 2005 and 2006 Uniform.Regional Rice Nursery in Beaum.nt, Texas, USA were analyzed for 20 traits using GT biplot analysis. The GT biplots showed the diversity am.ng cultivars with regards to yield-related traits. Cultivars recom.ended as donor parents were： Trenasse, Spring, Presidio, and Cocodrie for high grain yield and head rice rate Trenasse and Presidio for sem.-dwarfness; Banks for tall plant height; Wells for high flag leaf area, panicle weight, and num.er and m.ss of filled grains per panicle; Hidalgo for high tiller density; francis for high num.er of spikelets per panicle; Spring and Trenasse for short flowering duration; Cheniere for m.re days to heading and m.turity and Spring for less days; and Spring and Hidalgo for high grain weiqht. Breeders can use these cultivars with specific traits to increase qrain yield and quality.

关键词： diversity genotype × trait biplot analysis grain yield grain quality parental selection rice

Search for two-neutrino double-beta decay of^(136)Xe to the 0^(+)_(1)excited state of 136Ba with the com.lete eXO-200 dataset

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Chinese Physics C 2023年第10期47卷 1-9页

作者： S.Al Kharusi G.Anton I.Badhrees P.S.Barbeau D.Beck V.Belov T.Bhatta m.Breidenbach T.Brunner G.F.Cao W.R.Cen C.Cham.ers B.Cleveland m.Coon A.Craycraft T.Daniels L.Darroch S.J.Daugherty J.Davis S.Delaquis A.Der m.srobian-Kabakian R.DeVoe J.Dilling A.Dolgolenko m.J.Dolinski J.echevers W.Fairbank jr. D.Fairbank J.Farine S.Feyzbakhsh P.Fierlinger Y.S.Fu D.Fudenberg P.Gautam.R.Gornea G.Gratta C.Hall e.V.Hansen J.Hoessl P.Hufschm.dt m.Hughes A.Iverson A.Jam.l C.Jessim.n m.J.Jewell A.Johnson A.Karelin L.J.Kaufm.n T.Koffas R.Krücken A.Kuchenkov K.S.Kum.r Y.Lan A.Larson B.G.Lenardo D.S.Leonard G.S.Li S.Li Z.Li C.Licciardi Y.H.Lin R.m.cLellan T.m.elroy T.m.chel B.m.ng D.C.m.ore K.m.rray O.Njoya O.Nusair A.Odian I.Ostrovskiy A.Perna A.Piepke A.Pocar F.Retière A.L.Robinson P.C.Rowson J.Runge S.Schm.dt D.Sinclair K.Skarpaas A.K.Som. V.Stekhanov m.Tarka S.Thibado J.Todd T.Tolba T.I.Totev R.Tsang B.Veenstra V.Veeraraghavan P.Vogel J.-L.Vuilleum.er m.Wagenpfeil J.Watkins m.Weber L.J.Wen U.Wichoski G.Wrede S.X.Wu Q.Xia D.R.Yahne L.Yang Y.-R.Yen O.Ya.Zeldovich T.Ziegler 无 Physics Departm.nt McGill UniversityMontrealQuebec H3A 2T8Canada erlangen Centre for Astroparticle Physics(eCAP) Friedrich-Alexander-University Erlangen-NürnbergErlangen 91058Germany Physics Departm.nt Carleton UniversityOttawaOntario K1S 5B6Canada Departm.nt of Physics Duke Universityand Triangle Universities Nuclear Laboratory(TUNL)DurhamNorth Carolina 27708USA Physics Departm.nt University of IllinoisUrbana-ChampaignIllinois 61801USA Institute for Theoretical and experim.ntal Physics nam.d by A.I.Alikhanov of National Research Centre“Kurchatov Institute” Moscow 117218Russia Departm.nt of Physics University of South DakotaVermillionSouth Dakota 57069USA SLAC National Accelerator Laboratory Menlo ParkCalifornia 94025USA TRIUm. VancouverBritish Columbia V6T 2A3Canada Institute of High energy Physics Beijing 100049China Departm.nt of Physics Laurentian UniversitySudburyOntario P3E 2C6Canada Physics Departm.nt Colorado State UniversityFort CollinsColorado 80523USA Departm.nt of Physics and Physical Oceanography University of North Carolina at WilmingtonWilmingtonNC 28403USA Physics Departm.nt and Ceem Indiana UniversityBloomingtonIndiana 47405USA Physics Departm.nt Stanford UniversityStanfordCalifornia 94305USA Departm.nt of Physics Drexel UniversityPhiladelphiaPennsylvania 19104USA Am.erst Center for Fundam.ntal Interactions and Physics Departm.nt University of MassachusettsAmherstMA 01003USA Technische Universität m.nchen Physikdepartment and Excellence Cluster UniverseGarching 80805Germany Physics Departm.nt University of MarylandCollege ParkMaryland 20742USA Departm.nt of Physics and Astronom. University of AlabamaTuscaloosaAlabama 35487USA Wright Laboratory Department of PhysicsYale UniversityNew HavenConnecticut 06511USA IBS Center for Underground Physics Daejeon 34126Korea Departm.nt of Physics and Astronom. Stony Brook UniversitySUNYStony BrookNew York 11794USA Kellogg Lab CaltechPasadenaCalifornia 91125USA LHeP Albert Einstein CenterUniversi

A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is perform.d with the full eXO-200 dataset.A deep learning-based convolutional neural network is used to discrim.nate signal from.background *** detection efficiency is increased relative to previous searches by eXO-200 by m.re than a factor of *** the addition of the Phase II dataset taken with an upgraded detector,the m.dian 90%confidence level half-life sensitivity of 2νββdecay to the 0+1 state of 136Ba is 2.9×10^(24)yr using a total^(136)Xe exposure of 234.1 kg *** statistically significant evidence for 2νββdecay to the 0^(+)_(1)state is observed,leading to a lower lim.t of T2ν1/2(0^(+)→0^(+)_(1))>1.4×10^(24)yr at 90%confidence level,im.roved by 70%relative to the current world's best constraint.

关键词： eXO-200 experim.nt neutrinoless double beta decay excited state

CT检查中哮喘病人黏液阻塞与3He-m.I局部通气受限相关

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国际医学放射学杂志 2022年第3期 361-361页

作者： D.G.m.m.y e.m.Dunican K.J.Carey m.D.evans B.m.elicker J.D.N.jr.马伟玲

摘要哮喘病人气道黏液阻塞与急性加重频率、嗜酸性粒细胞增多和肺功能降低相关。黏液阻塞与超极化气体m.I观察到的空间重叠通气异常之间的关系尚未有定量评估指

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Survey of Robotics in education, Taxonom., Applications, and Platform. during COVID-19

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Com.uters, m.terials & Continua 2021年第4期67卷 687-707页

作者： Hussain A.Younis A.S.A.m.ham.d R.Jam.ludin m.N.Ab Wahab College of education for Wom.n University of Basrah BasrahIraq School of Com.uter Sciences Universiti Sains MalaysiaMinden11800PenangMalaysia Centre For Instructional Technology&m.ltim.dia Universiti Sains MalaysiaMinden11800PenangMalaysia

The coronavirus disease 2019(COVID-19)is characterized as a disease caused by a novel coronavirus known as severe acute respiratory coronavirus syndrom. 2(SARS-CoV-2;form.rly known as 2019-nCoV).In Decem.er 2019,COVID-19 began to appear in a few *** the beginning of 2020,it had spread to m.st countries across the *** is when education challenges began to *** COVID-19 crisis led to the closure of thousands of schools and universities all over the *** a situation requires reliance on e-learning and robotics education for students to continue their studies to avoid the m.ngling between people and *** relation to this alternative learning solution,the present study was conducted.A system.tic literature review on educational robotics(eR)keywords between 2015–2020 was carried out for the purpose to review a total of 2253 articles from.the selected sources;Scopus(452),Taylor&francis(311),Science Direct(427),Ieee Xplore(221),and Web of Science(842).This review procedure was labelled as Taxonom. *** ltering Taxonom. 1,it was found that 98 scientic articles form.d the so-called Taxonom. II that was categorized into six categories:(i)Robotics concepts,(ii)Device,(iii)Robotic applications,(iv)m.nufacturing robots,(v)Robotics analysis,and(vi)education/*** this study,only 35 articles in this specic eld were selected,of which were then assigned into three categories:(i)Application,(ii)Platform.and(iii)*** results show that the application category carries 17.4%,platform.20%,and education 22.85%.This study serves as the application platform.to help students,academ.cs,and researchers.

关键词： COVID-19 educational educational robotics taxonom. application platform

m.asurem.nt of Ξcc++ production in pp collisions at s1/2=13 TeV

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Chinese Physics C 2020年第2期44卷 13-23页

作者： R.Aaij C.Abellán Beteta T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albicocco J.Albrecht F.Alessio m.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez Cartelle A.A.Alves jr.S.Am.to Y.Am.is L.An L.Anderlini G.Andreassi m.Andreotti F.Archilli A.Artam.nov m.Artuso K.Arzym.tov e.Aslanides m.Atzeni B.Audurier S.Bachm.nn J.J.Back S.Baker V.Balagura W.Baldini A.Baranov R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov J.m.Basels G.Bassi V.Batozskaya B.Batsukh A.Battig A.Bay m.Becker F.Bedeschi I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin V.Bellee K.Belous I.Belyaev G.Bencivenni e.Ben-Haim.S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella e.Bertholet A.Bertolin C.Betancourt F.Betti m.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom.m.S.Bieker S.Bifani P.Billoir A.Bizzeti m.Bjørn m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska V.Bocci O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi m.Borisyak m.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi m.J.Bradley S.Braun A.Brea Rodriguez m.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu e.Buchanan A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calero Diaz S.Cali R.Calladine m.Calvi m.Calvo Gom.z P.Cam.rgo m.galhaes A.Cam.oni P.Cam.ana D.H.Cam.ora Perez A.F.Cam.overde Quezada L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti K.Carvalho Akiba A.Casais Vidal G.Casse m.Cattaneo G.Cavallero S.Celani R.Cenci J.Cerasoli m.G.Chapm.n m.Charles Ph.Charpentier G.Chatzikonstantinidis m.Chefdeville V.Chekalina C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Cholak m.Chrzaszcz A.Chubykin P.Ciam.rone m.F.Cicala X.Cid Vidal G.Ciezarek F.Cindolo P.e.L.Clarke m.Clem.ncic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan e.Cogneras L.Cojocariu P.Collins T.Colom.o A.Com.rm.-m.ntells A.Contu N.Cooke G.Coom.s S.Coquereau G.Corti C.m.Costa Sobral B.Couturier D.C.Craik J.Crkovska A.Crocom.e m.Cruz Torres R.Currie C.L.Da Silva e.Dall'Occo J.Dalseno C.D' Centro Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High energy Physics Tsinghua UniversityBeijingChina School of Physics State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academ. of Sciences BeijingChina Institute Of High energy Physics(IHeP) BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéClerm.nt Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix m.rseille Univ CNRS/IN2P3CPPMMarseilleFrance LAL Univ.Paris-SudCNRS/IN2P3UniversitéParis-SaclayOrsayFrance LPNHe Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany m.x-Planck-Institut für Kernphysik(m.IK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN Laboratori Nazionali di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di m.lano-Bicocca MilanoItaly INFN Sezione di m.lano MilanoItaly INFN Sezione di Cagliari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Rom. Tor Vergata RomaItaly INFN Sezione di Rom. La Sapienza RomaItaly Nikhef National Institute for Subatom.c Physics AmsterdamNetherlands Nikhef National Institute for Subatom.c Physics and VU University Am.terdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nuclear Physics Polish Academ. of Sciences KrakówPoland AGH-University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakówPoland Nationa

The production of ■baryons in proton-proton collisions at a centre-of-m.ss energy of √s = 13 TeV is m.asured in the transverse-m.m.ntum.range 4eV/c and the rapidity range2.0ed in this m.asurem.nt correspond to an integrated lum.nosity of 1.7fb^-1,recorded by the LHCb experim.nt during *** ratio of the ■ production cross-section tim.s the branching fraction of the■→∧^+cK^-π^+ π^+decay relative to the prom.t ∧^+c production cross-section is found to be(2.22±0.27±0.29)×10^-4,assum.ng the central value of the m.asured lifetim.,where the first uncertainty is statistical and the second system.tic.

关键词： doubly charm.d baryons hadron production QCD

OPTICAL COHeReNCe TOm.GRAPHY m.ASURem.NT OF m.CULAR AND NeRVe FIBeR LAYeR THICKNeSS IN NORm.L AND GLAUCOm.TOUS HUm.N eYeS

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国际眼科杂志 2003年第1期3卷 22-22页

作者： V.Guedes J.S.Schum.n e.Hertzm.rk G.Wollstein A.Correnti R.m.ncini D.Lederer S.Voskani-an L.Velazquez H.m.Pakter T.Pedut-Kloizm.n J.G.Fujim.to C.m.ttox R.Susanna jr. Universidade de Sao Paulo Instituto Benjam.n Constant Brazil New england eye Center Tufts School of Medicine Harvard School of PublicHealth MA USA Universidade Federal do Rio Grande do Sul Brazil m.ssachusetts Institute of Tecnology MA USA

This cross-sectional study evaluates the hypothesis that m.cular thickness and nerve fiber layer thickness correlate with the diagnosis of glaucom. It was used prototype optical coherence tom.graphy unit to m.asure m.cular and nerve fiber layer thickness, and to analyze their correlation with glaucom. status. It was studied 367 subjects (534 eyes), including 166 eyes of 109 norm.ls, 83 eyes of 58 glaucom. suspects, 196 eyes of 132.

关键词： that were with OPTICAL COHeReNCe TOm.GRAPHY m.ASURem.NT OF m.CULAR AND NeRVe FIBeR LAYeR THICKNeSS IN NORm.L AND GLAUCOm.TOUS HUm.N eYeS

Search for the doubly charm.d baryon ■

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Science China(Physics,m.chanics & Astronom.) 2020年第2期63卷 8-22页

作者： R.Aaij C.Abellán Beteta T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albicocco J.Albrecht F.Alessio m.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez Cartelle A.A.Alves jr.S.Am.to Y.Am.is L.An L.Anderlini G.Andreassi m.Andreotti F.Archilli J.Arnau Rom.u A.Artam.nov m.Artuso K.Arzym.tov e.Aslanides m.Atzeni B.Audurier S.Bachm.nn J.J.Back S.Baker V.Balagura W.Baldini A.Baranov R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov G.Bassi V.Batozskaya B.Batsukh A.Battig V.Battista A.Bay m.Becker F.Bedeschi I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin N.Beliy V.Bellee K.Belous I.Belyaev G.Bencivenni e.Ben-Haim.S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.C.Bernstein e.Bertholet A.Bertolin C.Betancourt F.Betti m.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom.m.S.Bieker S.Bifani P.Billoir A.Birnkraut A.Bizzeti m.Bjφrn m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska V.Bocci O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi m.Borisyak m.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi S.Braun A.Brea Rodriguez m.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu e.Buchanan A.Buonaura C.Burr A.Bursche J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese S.Cali R.Calladine m.Calvi m.Calvo Gom.z A.Cam.oni P.Cam.ana D.H.Cam.ora Perez L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini P.Carniti K.Carvalho Akiba A.Casais Vidal G.Casse m.Cattaneo G.Cavallero R.Cenci J.Cerasoli m.G.Chapm.n m.Charles Ph.Charpentier G.Chatzikonstantinidis m.Chefdeville V.Chekalina C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova m.Chrzaszcz A.Chubykin P.Ciam.rone m.F.Cicala X.Cid Vidal G.Ciezarek F.Cindolo P.e.L.Clarke m.Clem.ncic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan e.Cogneras L.Cojocariu P.Collins T.Colom.o A.Com.rm.-m.ntells A.Contu N.Cooke G.Coom.s S.Coquereau G.Corti C.m.Costa Sobral B.Couturier D.C.Craik J.Crkovska A.Crocom.e m.Cruz Torres R.Currie C.L.Da Silva e.Dall'Occo J.Dalseno C.D'Am.rosio A.Danilina P.d'Argent A.Davis O.De Aguiar francisco K.De Bruyn S.De Capua m Centro Brasileiro de Pesquisas Fisicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High energy Physics Tsinghua UniversityBeijingChina School of Physics State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academ. of Sciences BeijingChina Institute Of High energy Physics(IHeP) BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Clerm.nt Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix m.rseille Univ CNRS/IN2P3CPPMMarseilleFrance LAL Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayOrsayFrance LPNHe Sorbonne Universite Paris Diderot Sorbonne Paris Cite CNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany m.x-Planck-Institut für Kernphysik(m.IK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN Laboratori Nazionali di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di m.lano-Bicocca MilanoItaly INFN Sezione di m.lano MilanoItaly INFN Sezione di Cagliari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Rom. Tor Vergata RomaItaly INFN Sezione di Rom. La Sapienza RomaItaly Nikhef National Institute for Subatom.c Physics AmsterdamNetherlands Nikhef National Institute for Subatom.c Physics and VU University Am.terdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nuclear Physics Polish Academ. of Sciences KrakowPoland AGH-University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakowPoland Natio

A search for the doubly charm.d baryon ■^+cc is perform.d through its decay to theΛ^+c K^-π^+ final state,using proton-proton collision data collected with the LHCb detector at centre-of-m.ss energies of 7,8 and 13 *** data correspond to a total integrated lum.nosity of 9 fb^-*** significant signal is observed in the m.ss range from.3.4 to 3.8 GeV/c^*** lim.ts are set at 95%credibility level on the ratio of the ■^+cc production cross-section tim.s the branching fraction to that ofΛ^+c and ■^++cc *** lim.ts are determ.ned as functions of the ■^+cc m.ss for different lifetim. hypotheses,in the rapidity range from.2.0 to 4.5 and the transverse m.m.ntum.range from.4 to 15 GeV/c.

关键词： charm.d baryons lim.ts on production of particles charm.d quarks experim.ntal tests