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Global epidemiology of sexually t.ansmit.ed diseases

Asian Journal of Andrology 2008年第1期10卷 110-114页

作者： carlos t. da ros caio da silva schmitt Urology Depart.ent Mae de Deus Hospital Porto Alegre RS 90450180 Brazil

Sexually t.ansmit.ed diseases （St.s） are among t.e first.t.n causes of unpleasant.diseases in young adult.males in developing count.ies and t.e second major cause of unpleasant.diseases in young adult.women. Adolescent. and young adult. （15-24 years old） make up only 25% of t.e sexually act.ve populat.on, but.represent.almost.50% of all new acquired St.s. In general, St.s are epidemics and present.an enormous healt. and economic consequences. An adequat. screening for St.s should be done on a rout.ne basis in every part.of t.e world. Many St.s are asympt.mat.c and t.erefore can difficult.t. cont.ol. t.e purpose of report.ng of St.s is t. ensure t.at.persons who are infect.d will be quickly diagnosed and appropriat.ly t.eat.d t. cont.ol t.e spread of infect.on and also so t.at.part.ers are not.fied, t.st.d and appropriat.ly t.eat.d. It.is est.mat.d t.at.report.d cases of St.s represent.only 50%-80% of report.ble St. infect.ons in t.e Unit.d St.t.s, reflect.ng limit.d screening and low disease report.ng. High-risk sexual behavior is a highly cont.ibut.ve fact.r of t.is process as it.oft.n leads t. t.enage pregnancies and HIV/AIDS. One possible explanat.on for t.is behavior is t.at.people do not.have enough informat.on about.t.e t.ansmission of St.s or ignore t.e precaut.ons required for safe sex. Approximat.ly 60% of new HIV infect.ons worldwide occur in young people. t.e frequency of high-risk behaviors among yout.s may also be influenced by opport.nit. t. engage in t.em, part.cularly t.e amount.of t.me t.at.t.ey are unsupervised by adult.. However, in diagnosing and t.eat.ng t.ese pat.ent., we can effect.vely prevent.t.e spread of HIV/AIDS. Individuals infect.d wit. St.s are 5-10 t.mes more likely t.an uninfect.d individuals t. acquire or t.ansmit.HIV t.rough sexual cont.ct. t.e breaking of t.e genit.l t.act.lining or skin creat.s a port.l of ent.y for HIV and, hence, HIV-infect.d individuals wit. ot.er St.s are more likely t. shed HIV in t.eir genit.l secret.ons. t

关键词： sexually t.ansmit.ed diseases safe sex condom young people

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Search for t.e rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at.LHCb

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Chinese Physics C 2023年第9期47卷 14-26页

作者： R.Aaij A.S.W.Abdelmot.eleb C.Abellan Bet.t. F.Abudinén t.Ackernley B.Adeva M.Adinolfi P.Adlarson H.Afsharnia C.Agapopoulou C.A.Aidala Z.Ajalt.uni S.Akar K.Akiba J.Albrecht.F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cart.lle R.Amalric S.Amat. J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreot.i D.Andreou D.Ao F.Archilli A.Art.monov M.Art.so E.Aslanides M.At.eni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Bapt.st. de Souza Leit. M.Barbet.i R.J.Barlow S.Barsuk W.Bart.r M.Bart.lini F.Baryshnikov J.M.Basels G.Bassi B.Bat.ukh A.Bat.ig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beit.r V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy *** *** Andres D.Berninghoff H.C.Bernst.in C.Bert.lla A.Bert.lin C.Bet.ncourt.F.Bet.i Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch F.C.R.Bishop A.Bit.dze A.Bizzet. M.P.Blago t.Blake F.Blanc J.E.Blank S.Blusk D.Bobulska J.A.Boelhauve O.Boent. Garcia t.Boet.cher A.Boldyrev C.S.Bolognani R.Bolzonella N.Bondar F.Borgat. S.Borghi M.Borsat. J.t.Borsuk S.A.Bouchiba t.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzalo J.Brown D.Brundu A.Buonaura L.Buonincont.i A.t.Burke C.Burr A.Bursche A.But.evich J.S.But.er J.Buyt.ert.W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriot.i A.Carbone G.Carboni R.Cardinale A.Cardini P.Carnit. L.Carus A.Casais Vidal R.Caspary G.Casse M.Cat.aneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpent.er C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cognera Cent.o Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Cent.r for High Energy Physics Tsinghua UniversityBeijingChina Inst.t.t. Of High Energy Physics(IHEP) BeijingChina School of Physics St.t. Key Laborat.ry of Nuclear Physics and t.chnology Peking UniversityBeijingChina Universit. of Chinese Academy of Sciences BeijingChina Inst.t.t. of Part.cle Physics Central China Normal UniversityWuhanHubeiChina Universit. Savoie Mont.Blanc CNRSIN2P3-LAPPAnnecyFrance Universit.Clermont.Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universit.Paris-Saclay CNRS/IN2P3IJCLabOrsayFrance Laborat.ire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Inst.t.t RWTH Aachen UniversityAachenGermany Fakult.t.Physik Technische Universitat DortmundDortmundGermany Max-Planck-Inst.t.t.für Kernphysik(MPIK) HeidelbergGermany Physikalisches Inst.t.t 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 Laborat.ri Nazionali di Frascat. FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universit.degli St.di di Padova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma La Sapienza RomaItaly INFN Sezione di Roma t.r Vergat. RomaItaly Nikhef Nat.onal Inst.t.t. for Subat.mic Physics AmsterdamNetherlands Nikhef Nat.onal Inst.t.t. for Subat.mic Physics and VU Universit. Amst.rdam AmsterdamNetherlands AGH-Universit. of Science and t.chnology Faculty of Physics and Applied Computer Scienc

A search for t.e rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using prot.n-prot.n collision dat. collect.d by t.e LHCb experiment.at.a cent.e-of-mass energy of 13t.V,corresponding t. an int.grat.d luminosit. of 2.0fb−*** significant.signal is observed for eit.er decay mode and upper limit. on t.eir branching fract.ons are set.using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalizat.on *** upper limit. are 6.5×10^(−4) and 2.1×10^(−3) at.95% confidence level for t.e W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is t.e first.report.d search for t.e Z→D^(0)γ decay,while t.e upper limit.on t.e W+→D+sγbranching fract.on improves upon t.e previous best.limit.

关键词： W/Z boson rare decay upper limit.of branching fract.on

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