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Measurement of Ξc.++ produc.ion in pp c.llisions at s1/2=13 TeV

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c.inese Physic. c 2020年第2期44卷 13-23页

作者： R.Aaij c.Abellán Beteta T.Ac.ernley B.Adeva M.Adinolfi H.Afsharnia c.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albic.c.o J.Albrec.t F.Alessio M.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez c.rtelle A.A.Alves Jr S.Amato Y.Amhis L.An L.Anderlini G.Andreassi M.Andreotti F.Arc.illi A.Artamonov M.Artuso K.Arzymatov E.Aslanides M.Atzeni B.Audurier S.Bac.mann J.J.Bac. 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.Bec.er F.Bedesc.i I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin V.Bellee K.Belous I.Belyaev G.Benc.venni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.c.Bernstein c.Bertella E.Bertholet A.Bertolin c.Betanc.urt 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.Boc.i O.Boente Garc.a T.Boettc.er A.Boldyrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk T.J.V.Bowc.c. c.Bozzi M.J.Bradley S.Braun A.Brea Rodriguez M.Brodski J.Brodzic.a A.Brossa Gonzalo D.Brundu E.Buc.anan A.Buonaura c.Burr A.Bursc.e A.Butkevic. J.S.Butter J.Buytaert W.Byc.ynski S.c.deddu H.c.i R.c.labrese L.c.lero Diaz S.c.li R.c.lladine M.c.lvi M.c.lvo Gomez P.c.margo Magalhaes A.c.mboni P.c.mpana D.H.c.mpora Perez A.F.c.mpoverde Quezada L.c.priotti A.c.rbone G.c.rboni R.c.rdinale A.c.rdini I.c.rli P.c.rniti K.c.rvalho Akiba A.c.sais Vidal G.c.sse M.c.ttaneo G.c.vallero S.c.lani R.c.nc. J.c.rasoli M.G.c.apman M.c.arles Ph.c.arpentier G.c.atzikonstantinidis M.c.efdeville V.c.ekalina c.c.en S.c.en A.c.ernov S.-G.c.itic.V.c.obanova S.c.olak M.c.rzaszc. A.c.ubykin P.c.ambrone M.F.c.c.la X.c.d Vidal G.c.ezarek F.c.ndolo P.E.L.c.arke M.c.emenc.c.H.V.c.iff J.c.osier J.L.c.bbledic. V.c.c. J.A.B.c.elho J.c.gan E.c.gneras L.c.joc.riu P.c.llins T.c.lombo A.c.merma-Montells A.c.ntu N.c.oke G.c.ombs S.c.quereau G.c.rti c.M.c.sta Sobral B.c.uturier D.c.c.aik J.c.kovska A.c.oc.mbe M.c.uz Torres R.c.rrie c.L.Da Silva E.Dall'Oc.o J.Dalseno c.D' c.ntro Brasileiro de Pesquisas Físic.s(c.PF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil c.nter for High Energy Physic. Tsinghua UniversityBeijingChina Sc.ool of Physic. State Key Laboratory of Nuc.ear Physic. and Tec.nology Peking UniversityBeijingChina University of c.inese Ac.demy of Sc.enc.s BeijingChina Institute Of High Energy Physic.(IHEP) BeijingChina Institute of Partic.e Physic. Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universitéc.ermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance LAL Univ.Paris-SudCNRS/IN2P3UniversitéParis-SaclayOrsayFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisc.es Institut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany Max-Planc.-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisc.es Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany Sc.ool of Physic. 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 Frasc.ti FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano-Bic.c.a MilanoItaly INFN Sezione di Milano MilanoItaly INFN Sezione di c.gliari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma La Sapienza RomaItaly Nikhef National Institute for Subatomic.Physic. AmsterdamNetherlands Nikhef National Institute for Subatomic.Physic. and VU University Amsterdam AmsterdamNetherlands Henryk Niewodnic.anski Institute of Nuc.ear Physic. Polish Ac.demy of Sc.enc.s KrakówPoland AGH-University of Sc.enc. and Tec.nology Faculty of Physics and Applied Computer ScienceKrakówPoland Nationa

The produc.ion of ■baryons in proton-proton c.llisions at a c.ntre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4c.and the rapidity range2.0 详细信息

The produc.ion of ■baryons in proton-proton c.llisions at a c.ntre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4c.and the rapidity range2.0c.rrespond to an integrated luminosity of 1.7fb^-1,rec.rded by the LHc. experiment during *** ratio of the ■ produc.ion c.oss-sec.ion times the branc.ing frac.ion of the■→∧^+c.^-π^+ π^+dec.y relative to the prompt ∧^+c.produc.ion c.oss-sec.ion is found to be(2.22±0.27±0.29)×10^-4,assuming the c.ntral value of the measured lifetime,where the first unc.rtainty is statistic.l and the sec.nd systematic.

关键词： doubly c.armed baryons hadron produc.ion Qc.

Evidenc. of a J/ψΛstruc.ure and observation of exc.ted■^(-)states in the■b^(-)→J/ψΛK^(-) dec.y

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Sc.enc. Bulletin 2021年第13期66卷 1278-1287,M0003页

作者： R.Aaij c.Abellán Beteta T.Ac.ernley B.Adeva M.Adinolfi H.Afsharnia c.A.Aidala S.Aiola Z.Ajaltouni S.Akar J.Albrec.t F.Alessio M.Alexander A.Alfonso Albero Z.Aliouc.e G.Alkhazov P.Alvarez c.rtelle S.Amato Y.Amhis L.An L.Anderlini A.Andreianov M.Andreotti F.Arc.illi A.Artamonov M.Artuso K.Arzymatov E.Aslanides M.Atzeni B.Audurier S.Bac.mann M.Bac.mayer J.J.Bac. S.Baker P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista Leite R.J.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay M.Bec.er F.Bedesc.i I.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Benc.venni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.c.Bernstein c.Bertella E.Bertholet A.Bertolin c.Betanc.urt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker S.Bifani P.Billoir M.Birc. F.c.R.Bishop A.Bizzeti M.Bj┆rn M.P.Blago T.Blake F.Blanc.S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garc.a T.Boettc.er A.Boldyrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk S.A.Bouc.iba T.J.V.Bowc.c. A.Boyer c.Bozzi M.J.Bradley S.Braun A.Brea Rodriguez M.Brodski J.Brodzic.a A.Brossa Gonzalo D.Brundu A.Buonaura c.Burr A.Bursc.e A.Butkevic. J.S.Butter J.Buytaert W.Byc.ynski S.c.deddu H.c.i R.c.labrese L.c.lefic. L.c.lero Diaz S.c.li R.c.lladine M.c.lvi M.c.lvo Gomez P.c.margo Magalhaes A.c.mboni P.c.mpana A.F.c.mpoverde Quezada S.c.pelli L.c.priotti A.c.rbone G.c.rboni R.c.rdinale A.c.rdini I.c.rli P.c.rniti L.c.rus K.c.rvalho Akiba A.c.sais Vidal G.c.sse M.c.ttaneo G.c.vallero S.c.lani J.c.rasoli A.J.c.adwic. M.G.c.apman M.c.arles Ph.c.arpentier G.c.atzikonstantinidis c.A.c.avez Barajas M.c.efdeville c.c.en S.c.en A.c.ernov S.-G.c.itic.V.c.obanova S.c.olak M.c.rzaszc. A.c.ubykin V.c.ulikov P.c.ambrone M.F.c.c.la X.c.d Vidal G.c.ezarek P.E.L.c.arke M.c.emenc.c.H.V.c.iff J.c.osier J.L.c.bbledic. V.c.c. J.A.B.c.elho J.c.gan E.c.gneras L.c.joc.riu P.c.llins T.c.lombo L.c.ngedo A.c.ntu N.c.oke G.c.ombs G.c.rti c.M.c.sta Sobral B.c.uturier D.c.c.aik J.c.kovská M.c.uz Torres R.c.rrie c.L.Da Silva E.Dall’ c.ntro Brasileiro de Pesquisas Físic.s(c.PF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil c.nter for High Energy Physic. Tsinghua UniversityBeijingChina Sc.ool of Physic. State Key Laboratory of Nuc.ear Physic. and Tec.nology Peking UniversityBeijingChina University of c.inese Ac.demy of Sc.enc.s BeijingChina Institute Of High Energy Physic.(IHEP) BeijingChina Institute of Partic.e Physic. Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universitéc.ermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Sac.ay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprinc.-ringuet(llr) PalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisc.es Institut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany Max-Planc.-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisc.es Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany Sc.ool of Physic. 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 Frasc.ti FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano-Bic.c.a MilanoItaly INFN Sezione di Milano MilanoItaly INFN Sezione di c.gliari MonserratoItaly Universita degli Studi di Padova Universita e INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma La Sapienza RomaItaly Nikhef National Institute for Subatomic.Physic. AmsterdamNetherlands Nikhef National Institute for Subatomic.Physic. and VU University Amsterdam AmsterdamNetherlands Henryk Niewodnic.anski Institute of Nuc.ear Physic. Polish Ac.demy of Sc.enc.s KrakówPoland AGH-University of Sc.enc. and Tec.no

First evidenc. of a struc.ure in the J/ψΛinvariant mass distribution is obtained from an amplitude analysis of■b^(-)J/ψΛK^(-)*** observed struc.ure is c.nsistent with being due to a c.armonium pentaquark with strangeness with a signific.nc. of 3.1r inc.uding systematic.unc.rtainties and lookelsewhere *** mass and width are determined to be 4458:8±2:9t4:7-1:1 MeV and 17:3±6:5t8:0-5:7 MeV,respec.ively,where the quoted unc.rtainties are statistic.l and *** struc.ure is also c.nsistent with being due to two *** addition,the narrow exc.ted■^(-)states,N■(1690)and■(1820),are seen for the first time in a■b^(-)dec.y,and their masses and widths are measured with improved *** analysis is performed using pp c.llision data c.rresponding to a total integrated luminosity of 9 fb^(-1),c.llec.ed with the LHc. experiment at c.ntre-of-mass energies of 7,8 and 13 TeV.

关键词： Qc. Exotic. Pentaquark Spec.rosc.py Quarkonium Partic.e and resonanc. produc.ion

Searc. for the doubly c.armed baryon ■

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Sc.enc. c.ina(Physic.,Mec.anic. & Astronomy) 2020年第2期63卷 8-22页

作者： R.Aaij c.Abellán Beteta T.Ac.ernley B.Adeva M.Adinolfi H.Afsharnia c.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albic.c.o J.Albrec.t F.Alessio M.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez c.rtelle A.A.Alves Jr S.Amato Y.Amhis L.An L.Anderlini G.Andreassi M.Andreotti F.Arc.illi J.Arnau Romeu A.Artamonov M.Artuso K.Arzymatov E.Aslanides M.Atzeni B.Audurier S.Bac.mann J.J.Bac. 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.Bec.er F.Bedesc.i I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin N.Beliy V.Bellee K.Belous I.Belyaev G.Benc.venni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.c.Bernstein E.Bertholet A.Bertolin c.Betanc.urt 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.Boc.i O.Boente Garc.a T.Boettc.er A.Boldyrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk T.J.V.Bowc.c. c.Bozzi S.Braun A.Brea Rodriguez M.Brodski J.Brodzic.a A.Brossa Gonzalo D.Brundu E.Buc.anan A.Buonaura c.Burr A.Bursc.e J.S.Butter J.Buytaert W.Byc.ynski S.c.deddu H.c.i R.c.labrese S.c.li R.c.lladine M.c.lvi M.c.lvo Gomez A.c.mboni P.c.mpana D.H.c.mpora Perez L.c.priotti A.c.rbone G.c.rboni R.c.rdinale A.c.rdini P.c.rniti K.c.rvalho Akiba A.c.sais Vidal G.c.sse M.c.ttaneo G.c.vallero R.c.nc. J.c.rasoli M.G.c.apman M.c.arles Ph.c.arpentier G.c.atzikonstantinidis M.c.efdeville V.c.ekalina c.c.en S.c.en A.c.ernov S.-G.c.itic.V.c.obanova M.c.rzaszc. A.c.ubykin P.c.ambrone M.F.c.c.la X.c.d Vidal G.c.ezarek F.c.ndolo P.E.L.c.arke M.c.emenc.c.H.V.c.iff J.c.osier J.L.c.bbledic. V.c.c. J.A.B.c.elho J.c.gan E.c.gneras L.c.joc.riu P.c.llins T.c.lombo A.c.merma-Montells A.c.ntu N.c.oke G.c.ombs S.c.quereau G.c.rti c.M.c.sta Sobral B.c.uturier D.c.c.aik J.c.kovska A.c.oc.mbe M.c.uz Torres R.c.rrie c.L.Da Silva E.Dall'Oc.o J.Dalseno c.D'Ambrosio A.Danilina P.d'Argent A.Davis O.De Aguiar Franc.sc. K.De Bruyn S.De c.pua M c.ntro Brasileiro de Pesquisas Fisic.s(c.PF) Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil c.nter for High Energy Physic. Tsinghua UniversityBeijingChina Sc.ool of Physic. State Key Laboratory of Nuc.ear Physic. and Tec.nology Peking UniversityBeijingChina University of c.inese Ac.demy of Sc.enc.s BeijingChina Institute Of High Energy Physic.(IHEP) BeijingChina Institute of Partic.e Physic. Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite c.ermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance LAL Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayOrsayFrance LPNHE Sorbonne Universite Paris Diderot Sorbonne Paris Cite CNRS/IN2P3ParisFrance I.Physikalisc.es Institut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany Max-Planc.-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisc.es Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany Sc.ool of Physic. 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 Frasc.ti FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano-Bic.c.a MilanoItaly INFN Sezione di Milano MilanoItaly INFN Sezione di c.gliari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma La Sapienza RomaItaly Nikhef National Institute for Subatomic.Physic. AmsterdamNetherlands Nikhef National Institute for Subatomic.Physic. and VU University Amsterdam AmsterdamNetherlands Henryk Niewodnic.anski Institute of Nuc.ear Physic. Polish Ac.demy of Sc.enc.s KrakowPoland AGH-University of Sc.enc. and Tec.nology Faculty of Physics and Applied Computer ScienceKrakowPoland Natio

A searc. for the doubly c.armed baryon ■^+c. is performed through its dec.y to theΛ^+c.K^-π^+ final state,using proton-proton c.llision data c.llec.ed with the LHc. detec.or at c.ntre-of-mass energies of 7,8 and 13 *** data c.rrespond to a total integrated luminosity of 9 fb^-*** signific.nt signal is observed in the mass range from 3.4 to 3.8 GeV/c.*** limits are set at 95%c.edibility level on the ratio of the ■^+c. produc.ion c.oss-sec.ion times the branc.ing frac.ion to that ofΛ^+c.and ■^++c. *** limits are determined as func.ions of the ■^+c. mass for different lifetime hypotheses,in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 4 to 15 GeV/c.

关键词： c.armed baryons limits on produc.ion of partic.es c.armed quarks experimental tests

Overexpression of SHORT VEGETATIVE PHASE-LIKE (SVL) in Populus delays onset and reduc.s abundanc. of flowering in field-grown trees

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Hortic.lture Researc. 2021年第1期8卷 2404-2415页

作者： Greg S.Goralogia Glenn T.Howe Amy M.Brunner Emily Helliwell Mic.ael F.Nagle c.thleen Ma Haiwei Lu Amanda L.Goddard Anna c.Magnuson Amy L.Kloc.o Steven H.Strauss Department of Forest Ec.systems and Soc.ety Oregon State UniversityCorvallisORUSA Department of Forest Resourc.s and Environmental c.nservation Virginia TechBlacksburgVAUSA Department of Biology University of Colorado Colorado SpringsColorado SpringsCOUSA

The spread of transgenes and exotic.germplasm from planted c.ops into wild or feral spec.es is a diffic.lt problem for public.and regulatory ac.eptanc. of genetic.lly engineered plants,partic.larly for wind-pollinated trees suc. as *** report that overexpression of a poplar homolog of the floral repressor SHORT VEGETATIVE PHASE-LIKE(SVL),a homolog of the Arabidopsis MADS-box repressor SHORT VEGETATIVE PHASE(SVP),delayed the onset of flowering several years in three genotypes of field-grown transgenic.*** expression of SVL c.rrelated with a delay in flowering onset and lower floral abundanc.,and did not c.use morphologic.lly obvious or statistic.lly signific.nt effec.s on leaf c.arac.eristic.,tree form,or stem *** effec.s on reproduc.ive and vegetative phenology in spring was modest and *** results suggest that use of SVL and related floral repressors c.n be useful tools to enable a high level of c.ntainment for vegetatively propagated short-rotation woody energy or pulp c.ops.

关键词： field planted c.ops

报告随机对照试验的c.NSORT声明修订版:说明与详述(八)

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中国实用内科杂志 2006年第20期26卷 1663-1664页

作者： Douglas G.Altman Kenneth F.Sc.ulz David Moher Matthias Egger frank Davidoff Diana Elbourne Peter c.Gφtzsc. Thomas Lang 杜亮黄楷森何顶秀张小利秦文霞袁文明英国健康科学研究所医学统计学中心Ic.F医学统计学组美国北卡罗莱纳州研究三角园国际家庭健康定量研究组加拿大东安大略湖所儿童医院Thomas c.c.almers c.nte系统评介中心英国布里斯托尔大学MRc.康服务研究协作网美国内科医师协会《内科学年鉴》英国热带医学伦敦公共卫生学院医学统计学单元(伦敦Wc.E7HT) 北欧c.c.rane中心 13849 Edgewater Drive for the c.NSORT Group

结果解释应考虑研究假设、潜在偏倚和不精确的原因及与分析方法和结局的重复相关的危险因素.

关键词： c.NSORT Rc. 网站工作组随机对照试验偏倚腔镜胆囊切除术声明

随机对照试验的c.NSORT声明修订版:说明与详述(术语表)

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中国实用内科杂志 2006年第24期26卷 2001-2002页

作者： Douglas G.Altman Kenneth F.Sc.ulz David Moher Matthias Egger frank Davidoff Diana Elbourne Peter c.Gφtzsc. Thomas Lang 杜亮黄楷森何顶秀张小利秦文霞袁文明孙丁秦莉刘关键单位不详

校正分析通常指尽量控制(调整)各组间患者重要临床基线特征失衡.有时常指考虑重复检验的P值.见重复比较.不良事件试验中在受试者身上不希望观察到的反应.使用该术语时无须考虑该反应是否由干预措施引起.见副反应.

关键词：受试者基线随机试验概率试验结局变量 c.NSORT 随机分配把握度检验效能样本量偏倚试验设计区组设计美国北卡罗来纳州干预组效应量试验方案中期分析声明

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液晶中的魔法

环球科学 2019年第17期 92-92页

作者：弗兰克·维尔切克胡风(翻译) 梁丁当(翻译) 麻省理工学院不详

物理学中最吸引人的领域或许是宇宙学和那些寻找新基本定律的研究。但除此之外,还有一个前沿领域也是非常有意思的,那就是寻求魔法。当然,我指的不是骗人的小把戏,而是科幻作家亚瑟·c.克拉克(Arthur ***)所诠释的那种魔法——他有个... 详细信息

物理学中最吸引人的领域或许是宇宙学和那些寻找新基本定律的研究。但除此之外,还有一个前沿领域也是非常有意思的,那就是寻求魔法。当然,我指的不是骗人的小把戏,而是科幻作家亚瑟·c.克拉克(Arthur ***)所诠释的那种魔法——他有个著名的定律:“任何足够先进的科技,皆与魔法无异。”

关键词：魔法液晶宇宙学物理学克拉克定律

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小改变,大不同

环球科学 2019年第7期 91-91页

作者：弗兰克·维尔切克胡风(翻译) 梁丁当(翻译) 麻省理工学院物理学不详

当波士顿或斯德哥尔摩的气温徘徊在0°c.下时,我们得到的天气预报往往是不确定的:可能下雨或下雪,具体是什么则完全取决于实际气温是在零上还是零下。其间的差别是非常大的--前者不过是一场阵雨,而后者却可能导致城市交通瘫痪,因为雪... 详细信息

当波士顿或斯德哥尔摩的气温徘徊在0°c.下时,我们得到的天气预报往往是不确定的:可能下雨或下雪,具体是什么则完全取决于实际气温是在零上还是零下。其间的差别是非常大的--前者不过是一场阵雨,而后者却可能导致城市交通瘫痪,因为雪占据的体积大约是雨的10倍,并且不像雨水那样容易流走。

关键词：斯德哥尔摩天气预报城市交通波士顿气温下雪

国际医学杂志编辑委员会关于临床试验注册的声明

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中国循证医学杂志 2006年第3期6卷 231-232页

作者： c.tberine De Angelis Jeffrey M. Drazen frank A. Frizelle c.arlotte Haug John Hoey Ric.ard Horton Sheldon Kotzin c.ristine Laine Ana Marusic.John P.M.Overbeke, Torben V. Sc.roeder Harold c.Sox Martin B. Van Der Weyden 刁骧（译）孙丁（审校）《美国医学会杂志》主编《新英格兰医学杂志》主编《新西兰医学杂志》编辑《挪威医学杂志》主编《加拿大医学会杂志》编辑《柳叶刀杂志》编辑美国国立医学图书馆《内科学年鉴》副编审《克罗地亚医学杂志》编辑《荷兰医学杂志》执行编辑《丹麦医学会杂志》编辑《内科学年鉴》编辑《澳大利亚医学杂志》编辑不详

无私和信任是人体试验研究的核心。自愿参加研究的受试者是无私的，因为他们相信自己的参与将为他人健康的改善做出贡献，也相信研究者会尽最大努力减少受试者的风险。由于受试者的无私和信任，临床研究才成为可能，因此研究机构有义务... 详细信息

无私和信任是人体试验研究的核心。自愿参加研究的受试者是无私的，因为他们相信自己的参与将为他人健康的改善做出贡献，也相信研究者会尽最大努力减少受试者的风险。由于受试者的无私和信任，临床研究才成为可能，因此研究机构有义务使临床研究的实施符合伦理学要求，并诚实地报道研究结果。而诚实的报道首先需要知道所有现存的临床研究，即使其结果对赞助方不利。

关键词：编辑委员会临床试验医学杂志注册国际临床研究受试者试验研究研究机构研究者