简介:Objectives:Toevaluateoutcomesintreatingcarcinomaofexternalauditorycanal(EAC)andtoanalysisfactorswhicheffecttheprognosisofthisdisease.Methods:Aretrospectivelyreviewof16patientstreatedforcarcinomaofEACatourdepartmentbetweenApril2000andApril2014wasconducted.Allpatientsunderwentsurgicaltreatmentandthediagnosisconfirmedbypathologicalexamination.Results:Therewereadenoidcysticcarcinoma(ACC)in8patients,squamouscellcarcinoma(SCC)in5patients,adenocarcinoma(AC)in2patients,andverrucouscarcinoma(VC)in1patient.ThetumorswereclassifiedasStageIin4cases,StageIIin2cases,StageIIIin3cases,andStageⅣin7cases.Fivepatientsunderwentextensivetumorresection(ETR),2patientsunderwentlateraltemporalboneresection(LTBR),5patientsunderwentmodifiedLTBR,2patientsunderwentsubtotaltemporalboneresection(STBR),and2patientsunderwentonlyopenbiopsy.Besides,adjunctiveprocedures,includingneckdissection,parotidectomyandpinnaresectionwereperformedwhenindicated.Tenpatientsreceivedpostoperativeradiotherapy.Bytheendoffollowup,twopatientshaddiedoftheirdisease,2losttofollowup,2survivedwiththedisease,andtherestsurviveddisease-free.Themedianfollow-upperiodwas24months.Conclusion:CompletetumorresectionappearstobeaneffectivetreatmentforcarcinomaoftheEAC.PatientswithSCCseemtohaveworseprognosisthanthosewithACC.Radiationtherapyseemslesseffectiveforihediseasethansurgicaltreatment.
简介:客观:为了调查与外部fixator在处理期间测量主要axials火车的不同方法并且发现,合适的压缩在一个早阶段由外部fixator装载了。方法:十八只健康大耳朵的兔子随机根据不同测量方法被划分成二个组:组织A和组B。在组A,一个紧张计量器与502胶水在外部胫骨的外皮被加,并且在组B,一个骨头cement-coatedstrain计量器在内部胫骨的外皮上被安装。组A和B被划分成二亚群A1,A2和B1,B2,分别地根据一半并且与身体重量一样的压力。Z塑造左中间柄的胫骨的截骨术被externalfixator执行并且修理。结果:组A的sealer曲线在早阶段期间戏剧性地变化了。当后者紧张价值比前者高时,内部、外部的外皮的Thetrendlines在到达稳定的阶段以后一致地去了。到达最稳定的年龄的组B的时间是短的,但是它的绝对紧张价值是不到组A的。在他们被贴在稳定的阶段以前,当亚群B1和B2的结果是一样的时,亚群A1的拒绝的速度比SubgroupA2的慢慢地是更多。在它衰退了以后,当时,组A有一个上升趋势组Bdidn“t。在他们到达了稳定的阶段,两亚群A1和A2had以后一个衰退趋势当亚群A2比亚群A1快速是更多时,当亚群B2波动时,亚群B1在明确的水平被保留。结论:在外部fixatorcan下面的轴的紧张被骨头水泥测量在vivo的涂紧张的计量器。数据可以建议身体重量负担的那一半对外部fixator合适。
简介:Anewretrofittingmethodisproposedhereinforreinforcedconcrete(RC)structuresthroughattachmentofanexternalstructure.Theexternalstructureconsistsofafiberconcreteencasedsteelframe,connectionslabandtransversebeams.Theexternalstructureisconnectedtotheexistingstructurethroughaconnectionslabandtransversebeams.Pseudostaticexperimentswerecarriedoutononeunretrofittedspecimenandthreeretrofittedframespecimens.Thecharacteristics,includingfailuremode,crackpattern,hysteresisloopsbehavior,relationshipofstrainanddisplacementoftheconcreteslab,aredemonstrated.Theresultsshowthattheloadcarryingcapacityisobviouslyincreased,andtheextensionlengthoftheslabandthenumberofcolumnswithintheexternalframeareimportantinfluencefactorsontheworkingperformanceoftheexistingstructure.Inaddition,thedisplacementdifferencebetweentheexistingstructureandtheouterstructurewascausedmainlybythreefactors:sheardeformationoftheslab,extractionoftransversebeams,anddriftoftheconjunctionpartbetweentheslabandtheexistingframe.Furthermore,thetotaldeformationdeterminedbythefirsttwofactorsaccountedforapproximately80%ofthedamage,thereforethesefactorsshouldbecarefullyconsideredinengineeringpracticetoenhancetheeffectsofthisnewretrofittingmethod.
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简介:AbstractPreterm labor (before 37 weeks’ gestation) is the leading cause of neonatal mortality and morbidity, which can be divided into iatrogenic preterm labor, infectious preterm labor, and spontaneous preterm labor (sPTL). Up to now, there continue to be great difficulties in prediction and prevention of sPTL, owing to multiple risk factors, pathogenesis, and pathologic processes contributing to the event, which have not been fully clarified. Pregnancy maintenance and parturition is a complicated process with continuous maternal-fetal dialogue, in which both maternal and fetal factors participate and affect the outcome of pregnancy, including sPTL. Besides, external factors can also participate in sPTL, individually or through the interaction with internal factors. In this article, we summarize recent studies regarding sPTL from our and other groups, and discuss the risk factors and pathogenesis of preterm birth from both external and internal (maternal and fetal) aspects, so as to provide theoretical evidences for the diagnosis, prevention, and treatment of sPTL in the future.
简介:Syntheticapertureradarinterferometry(InSAR)hasbeenusedasaninnovativetechniquefordigitalelevationmodel(DEM)andtopographicmapgeneration.Inthispaper,externalDEMsareusedforInSARDEMgenerationtoreducetheerrorsindataprocessing.TheDEMsgeneratedfromrepeat-passInSARarecompared.Forsteepslopesandseverechangesintopography,phaseunwrappingqualitycanbeimprovedbysubtractingthephasecalculatedfromanexternalDEM.ItisaffirmativethattheabsoluteheightaccuracyoftheInSARDEMisimprovedbyusingexternalDEM.Thedataprocessingwasundertakenwithouttheuseofgroundcontrolpointsandothermanualoperation.
简介:Theweaknonlinearmodulationofthesurfacewaveofathree-dimensionalimcompressiblefluidwithoutrotation,whichiscontainedinarectangulartroughisstudiedbyusingthemethodofmulti-plescalesperturbationtheory.Theeffectsofviscidandexternaldriveonthemotion,whichmodifiestheLarraza-Puttermanequation,areconsidered.TheresultsareconsistentwiththatofMiles.
简介:Owingtoaseriesofimpactsofthe"9·11terroristattack,"theaccountingscandalsofbigcompanies,IraqWarandtheSARScrisisinthepasttwoyears,theworldeconomythatmighthavereboundedforcefullyhasbeenonawaveringprocessofslowrecovery.