学科分类
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9 个结果
  • 简介:数字调查在与一个穿孔盘子在laminar流动政体对方形的柱体起作用的液体力量的减小上被执行。象在方形的柱体的wake上的方形的柱体和穿孔的板之间的距离那样的几何参数的效果被讨论。而且,象drag系数,电梯系数,Strouhal数字和流动模式那样的流动特征被获得。方形的柱体的drag力量由于穿孔的板的增加归结为某程度,这能被结束。当穿孔的板在方形的柱体后面被定位时,流动结构变化。而且,再通行地区向后逐渐地在方形的柱体行动的上面、更低的表面上随L/D,和旋涡踪迹的增加扩充直到在方形的柱体和穿孔的板之间形成的一个稳定的再通行地区。

  • 标签: 天津大学学报 英文版
  • 简介:与女乳癌相比,男乳癌是稀罕疾病,并且在临床/病理学的特征和预后之间的关系争论,或甚至大部分未知。在这研究,我们从合用的男乳癌病人在天津医药大学癌症研究所和医院从1996年1月对待到2011年12月的109nonmetastatic用临床、病理学的数据执行了回顾的分析。木头等级测试证明那降低肿瘤舞台,没有淋巴节点参与,和积极雌激素/孕酮受体地位是没有疾病的幸存和外套的好预言者univariate分析上的幸存。然而,hormonotherapy仅仅是没有疾病的幸存,并且不全面幸存的一个好预兆的因素。另外,基于考克斯,比例的危险回归模型,仅仅淋巴节点参与,和雌激素/孕酮受体地位是multivariate分析上的统计上重要的预兆的因素。我们的结果证明尽管辅助全身的治疗在男乳癌广泛地被使用,病人和预后在最后几十年,淋巴节点参与,和雌激素/孕酮受体地位改善了仍然是最重要的预示的因素。有一种更大的样品尺寸的未来的多中心研究着急地被需要进一步理解男乳癌。

  • 标签: 病理特征 可操作性 乳腺癌 男性 预后 临床
  • 简介:Perivascularepithelioidcelltumor(PEComa)ofthepancreasisanunusualtumorderivingfrommesenchyma.ThispaperdescribedacaseofpancreaticPEComa,whichwasinitiallysuspectedasneuroendocrinecarcinomabybiopsy,andthereforesurgicaltreatmentwasrecommendedduetoundetermineddiagnosis.Examinationofthesurgicalspecimenunderamicroscopeshowedthatthetumorcell’smorphologywasepithelioidorspindle-shaped,andrangedinanestedpattern.Additionally,thesecellshadalargeextentofacidophiliccytoplasm,nomitoticfigures,andexpressedHMB-45,melan-p,andsmoothmuscleactinimmunohistochemically.PathologicalexaminationindicatedthatPEComaoriginatedfromthepancreas,butsymptomsrelatedtotuberoussclerosiswereabsent.SincePEComaisextremelyrareinthepancreas,itislikelytobeignoredindifferentialdiagnosis.Inconclusion,ourarticlehighlightedtheclinicopathologicalfeaturesofPEComa,andweconductedaliteraturereviewfocusingonPEComasoastodeepentheunderstandingofthistumortype.

  • 标签: PANCREAS PERIVASCULAR EPITHELIOID cell tumor HMB-45
  • 简介:AIM:Toevaluategutmicrobialdysbiosisintwovisceralhypersensitivemodelsincomparisonwithirritablebowelsyndrome(IBS)patientsandtoexploretheextenttowhichthesemodelscapturethedysbiosisofIBSpatients.METHODS:Visceralhypersensitivitywasdevelopedusingthematernalseparation(MS)ratmodelandpost-inflammatoryratmodel.Thevisceralsensitivityofthemodelgroupsandcontrolgroupwasevaluatedusingtheabdominalwithdrawreflexscoreandelectromyographyinresponsetogradedcolorectaldistention.The16SribosomalRNAgenefromfecalsampleswaspyrosequencedandanalyzed.Thecorrelationbetweendysbiosisinthemicrobiotaandvisceralhypersensitivitywascalculated.PositivefindingswerecomparedtosequencingdatafromapublishedhumanIBScohort.RESULTS:Dysbiosistriggeredbyneonatalmaternalseparationwaslastingbutnotstatic.BothMSandpostinflammatoryratfecalmicrobiotadeviatedfromthatofthecontrolratstoanextentthatwaslargerthantheco-housingeffect.Twoshortchainfattyacidproducinggenera,FusobacteriumandClostridiumXI,weresharedbythehumanIBScohortandbythematernalseparationratsandpost-inflammatoryrats,respectively,todifferentextents.FusobacteriumwassignificantlyincreasedintheMSgroup,anditsabundancepositivelycorrelatedwiththedegreeofvisceralhypersensitivity.Porphyromonadaceaewasaprotectivebiomarkerforboththeratcontrolgroupandhealthyhumancontrols.CONCLUSION:ThedysbiosisMSratmodelandthepost-inflammatoryratmodelcapturedsomeofthedysbiosisfeaturesofIBSpatients.Fusobacterium,ClostridiumXIandPorphyromonadaceaewereidentifiedastargetsforfuturemechanisticresearch.

  • 标签: Animal model IRRITABLE bowel syndrome MICROBIOTA
  • 简介:TheDeepSeismicSounding(DSS)projectscarriedoutfromthe1970sinthelowerYangtzeregionanditsneighboringareawerereviewedinthispaper,thenthebasicwavegroupfeaturesofthosewideanglereflection/refractionrecordsections,andofthecrustalstructurearesummarized.Itshowsthattherewereintotalfiveclearwavegroupsontherecordsections,whichincludethefirstarrivalPg,thereflectionP1fromthebottominterfaceoftheuppercrust,thereflectionP3fromthebottominterfaceofthemiddlecrust,thestrongreflectionPmfromtheMohoboundary,andtherefractionPnfromuppermostmantle.Ingeneral,thesephasesareeasilyconsistentlytracedandcompared,despitesomefirstarrivalsbeingdelayedorarrivingearlierthannormalduetotheshallowsedimentarycoverorbedrocks.Inparticular,intheDabieMountainregiontheseismiceventsofafewgatheredshotsalwayshaveweakreflectionenergy,aretwisted,orexhibitdisorganizedwaveforms,whichcouldbeattributedtothedisruptionvariationsofreflectiondepth,thebrokenMoho,andthediscontinuityofthereflectionboundarywithincrust.Theregionalcrustalstructuresarecomposedoftheupper,middleandlowercrust,ofwhichthemiddleandlowerlayerscanbedividedintotwoweakreflectionones.ThecrustalthicknessoftheNorthChinaandYangtzeplatformare30km-36km,andtheMohoexhibitsaflatgeometrydespitesomelocaluplifts.Theaveragepressurevelocityinlowercrustbeneaththistwotectonicareais6.7±0.3km/s.Nevertheless,beneaththeDabieshanareathecrustalthicknessis32km-41km,theMohobendsdownsharplyandtakesanabrupt4km-7kmdislocationintheverticaldirection.TheaveragepressurevelocityinthelowercrustbeneaththeDabieshanareais6.8±0.2km/s.

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  • 简介:由使用在Shouxian收集的雷送大小,中国,我们检验了在低、中间的层次形成的单个层、二层的云的动力学和热力学。分析比在内并且下面的那些遮蔽层的显示在云层上面的水平风速度高。最大的汽球上升加速(5.3ms1)与最大的云出现频率(24.4%)位于层的附近,显示一个向上的运动(0.10.16ms1)。在单个层的云上面的温度倒置层的平均厚度,大小和坡度是117

  • 标签: 热力学特征 动力学分析 辐射测量 探空资料 寿县 云层