简介:WhentheU.S.militarybrassassertedinmid-2014thattheproposeddefensecutbackswereunacceptable,theysignaledtheObamaadministrationthattheywouldnotrolloverandplaydeadwhilemilitaryspendingwascutbybillionsofdollarsinthecoming10years.Theterms"sequestration"and"OCO"wereusedrepeatedlyintheirspeechesand
简介:Charcot’s关节神经性关节病也称为Charcot’s关节病,1868年Charcot首先描述。此类疾病为无痛觉所引起,又有无痛性关节病之称,是一种较为罕见的神经营养性骨关节病,缺少特征性病理改变,易被误诊为其它疾病。笔者经治1例Charcot’s关节病误诊病例,原单位诊断为非特异性炎症改变。观察该病例的临床表现、病理学特点和影像学表现,并复习相关文献,旨在提高对该疾病的认识,减少或避免误诊。
简介:为提升自行开发的粒子输运蒙特卡罗模拟软件PHEN对电子输运模拟的处理能力,根据厚靶轫致辐射(thick—targetbremsstrahlung,TTB)模型,在PHEN中加入了自编的TTB模块,分析了加入TTB模块后PHEN的模拟计算速度、TTB模块生成的轫致辐射光子能量及TTB模块模拟电子输运的适用范围。通过与MCNP中轫致辐射截面及电子射程的对比,验证了TTB模块模拟电子输运的正确性。计算了加入TTB模块前后正电子湮没峰计数的变化,用于判断使用TTB模块模拟的合理性。计算结果表明:当材料尺寸小于电子在材料中的射程时,TTB模型不考虑电子输运的计算结果是不合理的,应采用压缩历史算法处理电子输运;当材料尺寸大于电子在材料中的射程时,TTB模型计算速度快,计算结果与压缩历史算法的计算结果吻合较好,可用厚靶轫致辐射处理电子输运。
简介:摘要本文主要论述防辐射大体积混凝土内部无任何降温措施的情况下的施工质量研究与应用,需优化施工工艺,合理配制混凝土,需从原材料选择进行把关,及时对混凝土的整个施工过程进行全方位的跟踪控制。
简介:BelovedisoneofToniMorrison’smostfamousnovelsandattractsmuchattentionfromthepublic.ThisessayaimstoanalyzethehealingprocessofSethe’straumafromtheperspectiveofpsychologicalanalysis.Therearefourparts.First,itintroducestheplotofthestoryandthetheory.ThesecondpartanalyzestheformingofSethe’straumaandthethirdpartdiscussesthehealingprocess.Thelastpartreachestheconclusion.ByanalyzingSethe’straumafrompsychoanalysis,thispaperaimstohelptheseblackpeopletoreconstructtheiridentityandachieverenascence.
简介:Weprovideanalyticalsolutionstotheproblemsofacircularbendingofabeaminplanestrainandthetorsionofanon-circularcross-sectionbeam,thebeamsobeyingasecond-gradientelasticitylawproposedbytheauthor,followingaprevioussuggestionofdell'Isolaetal.(2009).Themotivationwastofindbenchmarkanalyticalsolutionsthatcanservetograspthephysicalfoundationsofsecondgradientelasticitylawsforheterogeneousmaterials.TheanalyticalsolutionofthecircularbeamproblempresentstheadditionaladvantagetoestablishsomenicepropertiesontheunknownsecondgradientelasticmoduliintroducedbyEnakoutsa(2014)modelandtheclassicalelasticityconstantsforbothincompressibleandcompressibleheterogeneouselasticmaterials.Aframeworktofindtheelasticmoduliofthenewmodelisalsoproposed.
简介:Definitiveconclusionsconcerningtheimpactofexerciseinterventionsonchildren'smentalfunctioningaredifficulttoascertainbecauseofproceduraldifferencesamongstudies.Anarrativereviewofstudieswasconductedtoevaluatetheroleoftwotypesofexerciseinterventionsonchildren'scognition.Acuteandchronicexerciseinterventionswereclassifiedasquantitativeorqualitativeonthebasisofmanipulationsoftaskcomplexityand,byinference,mentalengagement.Bothtypesofinterventionsenhanceaspectsofchildren'scognition;however,theireffectsonmetacognitiveprocessesareunknown.Theroleofmetacognitiveprocessesandtheirregulationofchildren'sbehaviorandacademicperformancearehighlighted.
简介:Bell’spalsyisacommonlyseencranialnervediseaseandcanresultincompromisedfacialappearanceandfunctions.Itsetiology,prognosisandtreatmentarestillbeingdebated.Thispaperisareviewofrecentdevelopmentintheunderstandingofetiology,diagnosisandnon-surgicaltreatmentofBell’spalsy.
简介:Inthemodernera,theJewish-AmericanswerefacedwithchallengesbecauseoftheassimilationandmodernityenvironmentintheUS,andasaresult,manyofthemwereinadoublebind—tobeanassimilatedAmericancitizenortobeatraditionalJew.Withhiswork"TheImportedBridegroom",AbrahamCahancontemplatedonthesubjectofJewishimmigrationandassimilationandhemadeaground-breakingcontributiontotheestablishmentofAmericanmodernity.ThispaperintendstoanalyzeCahan’sattitudestowardsassimilationandmodernityandhowhebuildsupmodernityforalloftheAmericans.Threecharactersin"TheImportedBridegroom",whostandforthreeprototypesofmodernJewish-Americansconfrontingtheoverwhelmingfloodofassimilationandthedutyforretainingtheirtraditions,willbeanalyzed.Throughthecompositionofthiswork,CahantriedtospreadtheJewishcultureontheonehand,andontheother,hewarnedtheperipheralthatitwasdifficulttobeassimilatedwithoutdisasterseveniftheyhadmadecontributiontotheformationofmodernity.