学科分类
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7 个结果
  • 简介:Eventwinscanbeidentifiedthroughthetinymarksonthesurfaceoftheskin(Credit:GettyImages).Scientistsarefindingmanysurprisingwaysofidentifyingyoufromtheothersevenbillionpeopleintheworld.生活中你有没有遇见过双胞胎?有的双胞胎相像地只有父母和他们本人才能分清楚,但科学家告诉我们他们可以从7个方面确定每一个人都是独一无二的。

  • 标签: SURPRISING totally TWINS identifying finding DISTINGUISH
  • 简介:Inthispaper,thetotallynon-positivematrixisintroduced.Thetotallynon-positivecompletionaskswhichpartialtotallynon-positivematriceshaveacompletiontoatotallynon-positivematrix.Thisproblemhas.ingeneral,anegativeanswer.Therefore,ourquestionisforwhatkindoflabeledgraphsGeachpartialtotallynon-positivematrixwhoseassociatedgraphisGhasatotallynon-positivecompletion?IfGisnotamonotonicallylabeledgraphormonotonicallylabeledcycle,wegivenecessaryandsufficientconditionsthatguaranteetheexistenceofthedesiredcompletion.

  • 标签: 完备化问题 完全非正矩阵 计算数学 否定回答
  • 简介:Inthispapertheauthorsstudyaclassofnon-linearsingularpartialdifferentialequationincomplexdomainCtxCxn.Undercertainassumptions,theyprovetheexistenceanduniquenessofholomorphicsolutionnearoriginofCtxCxn.

  • 标签: NON-LINEAR SINGULAR partial differential equation HOLOMORPHIC
  • 简介:BackgroundThevideo-assistedthoracoscopicsurgicaltechniquesarewidelyusedinthetreatmentofpatientswithcongenitalheartdiseaseswithgoodoutcomes.However,thefeasibilityandsignificanceofnursebasedearlycardiacrehabilitationincardiacintensivecareunit(ICU)forpatientswithtotallythoracoscopiccardiacoperationhasbeenseldomstudied.MethodsThirty-sixpatientswithtotallythoracoscopiccardiacoperationundertheconditionofthecardiacICUinGuangdongGeneralHospitalwererandomallocatedtotheinterventiongroupandthecontrolgroupbetweenJanuary2012toDecember2014.Thecontrolgroupreceivedstandardnursingcare,andtheinterventiongroupreceivedearlycardiacrehabilitationnursingcareinadditiontostandardcare.Theoutcomemeasuresincludedtheoxygensaturation(SpO2%),vitalcapacity,forcedexpiratoryvolumein1second(FEV1),andpaininthethoracicwound(visualanaloguescale,VAS),whichweremeasuredatthebaselineandwithin2-dayafter4-weeknursingcare.Forsafetyreason,wealsomonitoredtherateofperceivedexertion(RPE),heartrate,systemicbloodpressure.ResultsTherewerenon-significantdifferencesbetweenthegroupsinage,sex,totalnumberofcomorbidconditions,totalnumberofmedications,surgicaltime,andanesthetictime(P>0.05).Following4weekstreatment,thecardiopulmonaryfunctionsandVASscorewereimproved(P<0.05)inallgroups.Inaddition,theimprovementsweremoreintheearlycardiacrehabilitationnursecaregroupthaninthecontrolgroup(P<0.05).ConclusionTheearlycardiacrehabilitationnursingcareincardiacICUissafe,feasibleandbeneficialforpatientswithtotallythoracoscopiccardiacoperation.

  • 标签: 心脏病患者 ICU 护理 康复 腔镜 手术
  • 简介:Inthispaper,weproposeanewhybriditerativeschemeforfindingacommonsolutiontoafiniteofequilibriumproblemsandfixedpointofBregmantotallyquasiasymptoticallynonexpansivemappinginreflexiveBanachspaces.Moreover,weprovesomestrongconvergencetheoremsundersuitablecontrolconditions.

  • 标签: 应用数学 数学分析 数学理论 数学研究
  • 简介:BackgroundDespiteobservationssuggestingabenefitforlateopeningoftotallyoccludedinfarct-relatedarteriesaftermyocardialinfarction,theOccludedArteryTrial(OAT)demonstratednoreductioninthecompositeofdeath,reinfarction,andclassIVheartfailureovera2.9-yearmeanfollow-up.Follow-upwasextendedtode-terminewhetherlatetrendswouldfavoreithertreatmentgroup.MethodsandResultsOATrandomized2201stablepatientswithinfarct-relatedarterytotalocclusion>24hours(calendardays3-28)aftermyocardialinfarction.Patientswithsevereinducibleischemia,restangina,classⅢ-Ⅳheartfailure,and3-vessel/leftmaindiseasewereexcluded.Weconductedextendedfollow-upofenrolledpatientsforanadditional3yearsfortheprimaryendpointandangina(6-yearmediansurvivorfollow-up;longest,9years;12234patient-years).Ratesoftheprimaryendpoint(hazardratio,1.06;95%confidenceinterval,0.88-1.28),fatalandnonfatalmyocardialinfarction(hazardratio,1.25;95%confidenceinterval,0.89-1.75),death,andclassIVheartfailureweresimilarforthepercutaneouscoronaryintervention(PCI)andmedicaltherapyalonegroups.Nointeractionsbetweenbaselinecharacteristicsandtreatmentgrouponoutcomeswereobserved.Thevastmajorityofpatientsateachfollow-upvisitdidnotreportangina.TherewaslessanginainthePCIgroupthroughearlyinfollow-up;by3years,thebetweengroupdifferencewasconsistently<4patientsper100treatedandnotsignificantlydifferent,althoughtherewasatrendtowardlessanginainthePCIgroupat3and5years.The7-yearrateofPCIoftheinfarct-relatedarteryduringfollow-upwas11.1%forthePCIgroupcomparedwith14.7%forthemedicaltherapyalonegroup(hazardratio,0.79;95%confidenceinterval,0.61-1.01;P=0.06).ConclusionsExtendedfollow-upoftheOATcohortprovidesrobustevidencefornoreductionoflong-termratesofclinicaleventsafterroutinePCIinstablepatientswithatotallyocclud

  • 标签: 冠状动脉 心肌梗死 闭塞 亚急性 心脏