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简介：Objective:Curativegastriccancersurgeryentailsremovaloftheprimarytumorwithadequatemarginsincludingregionallymphnodes.Europeanrandomizedcontrolledtrialswithrecruitmentinthe1990'sreportedincreasedmorbidityandmortalityforD2comparedtoD1.Here,weexaminedtheextentoflymphadenectomyduringgastriccancersurgeryandtheassociatedriskforpostoperativecomplicationsandmortalityusingthestrengthsofapopulation-basedstudy.Methods:AprospectivenationwidestudyconductedwithintheNationalRegisterofEsophagealandGastricCancer.AllpatientsinSwedenfrom2006to2013whounderwentgastriccancerresectionswithcurativeintentwereincluded.PatientswerecategorizedintoD0,D1,orD1+/D2,andanalyzedregardingpostoperativemorbidityandmortalityusingmultivariablelogisticregression.Results:Intotal,349(31.7%)patientshadaD0,494(44.9%)D1,and258(23.4%)D1+/D2lymphadenectomy.The30-dpostoperativecomplicationrateswere25.5%,25.1%and32.2%(D0,D1andD1+/D2,respectively),and90-dmortalityrateswere8.3%,4.3%and5.8%.Afteradjustmentforconfounders,inmultivariableanalysis,therewerenosignificantdifferencesinriskforpostoperativecomplicationsbetweenthelymphadenectomygroups.For90-dmortality,therewasalowerriskforD1vs.D0.Conclusions:ThemajorityofgastriccancerresectionsinSwedenhaveincludedonlyalimitedlymphadenectomy(D0andD1).Moreextensivelymphadenectomy(D1+/D2)seemedtohavenoimpactonpostoperativemorbidityormortality.

简介：Diabasbrottet,selectedbytheInternationalSubcommissononOrdovicianStratigraphyandin2002ratifiedbytheInternationalCommissiononStratigraphyastheGSSPoftheSecond(Upper)StageoftheLowerOrdovician,islocatedontheHunnebergMountaininsouthwesternSweden.ThestratigraphicsuccessionrepresentsanoutershelfenvironmentneartheBalticShieldmargin.Theshale-dominated,biostratigraphicallycomplete,richlyfossiliferousboundaryintervaliscompletelyexposedinadisusedquarry.TheGSSPisinthelowerTФyenShale2.1mabovethetopoftheCambrianandismarkedbythefirstappearanceofthegraptoliteTetragraptusapproximatusNicholson.Theboundaryintervalcontainsadiversegraptolitefaunaandbiostratigraphicallydiagnosticconodontsandtrilobitesthatmakeitpossibletodefinetheboundaryintermsofzoneschemesbasedonthesegroups.Inthisrespect,theDiabasbrottetandnearbysectionsareuniqueintheworldamongdescribedlocalitieshavingthisboundaryinterval.BasedontheappearanceofT.approximatus,thebaseoftheSecondStagecanbeidentifiedinmanygraptolitiferoussuccessionsroundtheworldbutthisleveliscurrentlymoredifficulttorecognizepreciselyinsomecarbonatesequencesoutsideBaltoscandia.WeproposetheSecondStagebecalledtheFloanStage.ItisnamedfortheVillageofFlo,whichissituatedabout5kmsoutheastoftheGSSP.

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简介：Energyplaysasignificantroleinournationalmoderniza-tionconstruction.TheChinesegovernmenthasalwayspaidagreatattentiontotheChineseenergyindustryandregardeditasakeyissueinthenationaldevelopmentstrategy.Energyindustrydevelopmenthasbeengoinguprapidlyoverlast4decadessincethePeople’sRepublicwasfounded.Bytheendof1991,totalprimaryenergyproductiongotto1.047billiontonsofcoalequivalent,whichincludes1.09billiontonsofrun-off-minecoal,139milliontonsofcrudeoil,15.3billionM~3ofnaturalgas.Electricitygeneratingcapacity