简介:摘要变异性哮喘统称过敏性哮喘或隐匿性哮喘(CVA),是哮喘的一种特殊类型,常由运动、冷空气、气候变化及上呼吸道感染诱发或加重,咳嗽可以一年四季反复发作,以夜间或凌晨为重,多表现为刺激性干咳,持续时间长,从几周至数年,抗生素治疗无效。变异性哮喘易误诊为支气管感染、肺部感染、慢性支气管炎等其他呼吸道疾病。
简介:摘要目的探讨胫骨平台骨折的手术治疗方法与临床疗效。方法选取本院2010年1月-2011年1月收治的胫骨平台骨折患者30例,根据Schatzker分型结果采取相应的手术治疗方法,观察患者的临床疗效。结果本组病例术后随访6-15个月,平均(11.2±1.5)个月。本组病例均达到骨性愈合,愈合时间为3-7个月,平均(3.9±0.7)个月。本组病例的评分结果为优13例,良9例,中6例,差2例,优良率为73.3%。本组病例手术治疗中及术后未发生深静脉栓塞、骨筋膜室综合征,术后出现皮肤坏死骨外露2例,胫后血管危象截肢1例。结论在胫骨平台骨折患者的临床治疗中,根据患者的骨折类型选择相应的手术治疗方案,可以取得较为理想的临床疗效。
简介:<正>OnDecember5,2012,theChineseAssociationforInternationalUnderstanding(CAFIU)andtheFriedrich-Ebert-Stiftung(FES)celebrated30thanniversaryofcooperationinBeijing.Almost100peopleattendedthereceptionfortheanniversary,includingrepresentativesfromFESheadquartersandtheAsia-Pacificregion,Germanscholarsandstatesmenattendingthe11thChina-GermanyForeignPolicyandComprehensiveSecurityDialogue,Germanstaffworkinginsome
简介:Thefatiguebehaviorofahighstrengthsteel300Minthegigacycleregimewasinvestigated.Fullyreversedtension-compressionfatiguetestsatambienttemperaturewereperformedusinganultrasonicfatiguesystemoperatingat20kHz.Thestaircasetestmethodwasemployedtoobtainaccuratevaluesofthemeanfatiguestrengthcorrespondingtofixednumbersofcyclesupto10~9.Theseresultswerecomparedtothecurvewhichisestimatedbythedatatestedinthemid-longliferegimeonconventionalservohydraulictestmachineat20Hz.Resultsindicatethatthefatiguestrengthdeterminedfromultrasonicfatiguetestingislightlyhigherthanconventionaltestingintherangeof10~6-10~7cycles.Itisobviousthatnucleationsoffracturestendtooccurbelowthesurface,iffractureshappenaftermorethan10~7cycles.AllthefracturedspecimensfailsfrominternalSiO_2inclusionsorsmallercarbidesandcarbideclusters.