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11 个结果
  • 简介:BackgroundNoncompactionofventricularmyocardium(NVM)isararetypeofprimarycardiomyopathy.Thediseaseiscausedbythedisorderinthedensificationofthemyocardiumintheearlystageoftheembryoprocess.Themorphologicalcharacteristicsareprojectingtrabeculationintheventricleandthedeeptrabecularspaceinterlinkedwithventricularchamber.Inrecentyears,manystudieshavefoundthattheleftventriculargrowthassociatedgeneticmutationiscloselyrelatedtotheoccurrenceofNVM.Themostclinicalmanifestationssuchasheartfailure,thromboembolismandarrhythmiaarespecific.EchocardiographyisthemostcommonlyusedtechniqueforthediagnosisofNVM.Cardiaccomputedtomography(CT)scan,cardiacmagneticresonanceimagingandleftventricularangiographyareotherimportanttechniquesforitsdiagnosis.TheNVMpatientshavealongcourseofdisease,poorprognosisandahighrateofmisdiagnosis.Thisarticlereviewstheresearchprogressintheaspectsofepidemiologicalcharacteristics,geneticcharacteristics,clinicalmanifestations,pathophysiology,diagnosis,treatmentandsoon,inordertoprovidethebasisforthediagnosisandtreatmentofNVM.

  • 标签: 致密化 心肌病 计算机断层扫描 诊断方法 发育相关基因 流行病学特征
  • 简介:BackgroundMyocardialfibrosisisoneprocessofthevariousheartdiseases,whichleadstocommonpathologicalchangeswhenitdevelopstoacertainstage.Itisthemaincauseofventricularremodelingwhicheventuallyleadstodifferentdegreesofcardiacdysfunction,malignantarrhythmiasandsuddencardiacdeath.Manystudieshaveshownthatvariouscytokinesplayaveryimportantroleinthedevelopmentofmyocardialfibrosis.Thispaperreviewsthelatestresearchesontheroleofcytokinesinmyocardialfibrosis.

  • 标签: 心肌纤维化 细胞因子 病理变化 心室重构 心律失常 心脏病
  • 简介:Occlusaldisordercausedbysevereworndentitionisoneofthemostcommondiseasesintheocclusion.Occlusalreconstructionisanimportantrepairmethod,referringtomodifyandrebuildtheexistingocclusionstatus,thentorestoretheocclusion.Duringocclusalreconstruction,thedigitalocclusionanalysissystemcanaccuratelyacquiretheocclusionstatus,inordertoguidethereconstructionocclusionaccuratelyandrestorethenormalfunctionoftheoralmaxillarysystem.Thispaperreviewstheconceptofocclusalreconstruction,sequencetherapy,traditionalocclusionanalysismethodsandthedevelopmentstatusandprospectofdigitalocclusionanalysis.

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  • 简介:与spintronics的发展,在二维的材料的氧的行为上的调查从来没停止过。由于它的活泼的性质,氧是难的在系统独自存在。然而,它将与另外的原子交往并且生产复杂轨道的杂交效果,它影响了材料的表演。特别为在nanoscale的材料,介绍氧原子是不可避免的,不管什么在准备的过程或采用。因此,在二维的薄电影关于氧行为的效果继续研究是必要的。在这篇论文,它将主要在磁性,电的性质,阶段转变,纺纱依赖者性质和热稳定性上介绍氧行为的效果,总结影响氧行为的几个因素,并且概括在氧行为后面的机制的研究进步。

  • 标签: 二维薄膜 氧气 行为 自旋电子学 二维材料 原子相互作用
  • 简介:Sincethe18thNationalCongressoftheCommunistPartyofChina,GeneralSecretaryXiJinpinghasissuedaseriesofimportantexpositionsonpeaceanddevelopment,whoseimpactisincreasinglyimportantforthecurrentprocessofglobalgovernance.XihaspointedoutthatChinesecivilizationhasupheldharmonyinhandling

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  • 简介:Thedevelopmentofcancernanotherapeuticshasattractedgreatinterestintherecentdecade.Cancernanotherapeuticshaveovercomeseverallimitationsofconventionaltherapies,suchasnonspecificbiodistribution,poorwatersolubility,andlimitedbioavailability.Nanoparticleswithtunedsizeandsurfacecharacteristicsarethekeycomponentsofnanotherapeutics,andaredesignedtopassivelyoractivelydeliveranti-cancerdrugstotumorcells.Weprovideanoverviewofnanoparticle-baseddrugdeliverymethodsandcancertherapiesbasedontumor-targetingdeliverystrategiesthathavebeendevelopedinrecentyears.

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  • 简介:TheBe-basedmaterialswithmanyparticularpropertiesleadtoanimportantresearchsubject.Theinvestigationprogressesinthefabricationtechnologiesareintroducedhere,includingmainthreekindsofBe-basedmaterials,suchasBe–Cucapsule,Be_2Cablatorandhigh-purityBematerial.ComparedwiththepioneerworkgrouponBe-basedmaterials,thedifferencesinBe–Cutargetfabricationweredescribed,andagrainrefinementtechniquebyanactivehydrogenreactionforBecoatingwasproposeduniquely.Be_2CcoatingswerefirstpreparedbytheDCreactivemagnetronsputteringwithahighdepositionrate(~300nm/h).PurepolycrystallineBe_2Cfilmswithuniformmicrostructures,smoothsurface,highdensity(~2.2g·cm~3)andgoodopticaltransparencywerefabricated.Inaddition,thehigh-purityBematerialswithmetalimpuritiesinappmmagnitudewerefabricatedbythepyrolysisoforganometallicBe.

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  • 简介:在在参考书在中等Mn钢上总结相关研究以后,张力的性质上的二个新目标被定义。一个人两个都是那导致转变(旅行)并且导致双胞胎的粘性(缇)能与一个相对低的Mn内容为钢被认识到,它与更高的Mn内容展出类似的张力的性质到古典缇钢。其它将完成超离频的最终的张力的力量(>1.5?GPa)没有牺牲formability。达到这些目标,新设计策略为作文和处理线路被提出。特别地,因为前者能经由部分再结晶与不同形态学和尺寸生产保留的奥氏体谷物的混合物,温暖的滚动被采用而不是平常的热/冷的滚动过程。因而,保留的奥氏体谷物有大量技工稳定性以便他们能在变丑期间逐渐地转变到马氏体,导致提高的旅行效果然后改进技工性质。最后,它在在实验室生产这些指向的中等Mn钢被接替,他们中的一些甚至比我们的期望展出更好张力的性质。

  • 标签: 设计策略 实验室生产 评论 奥氏体 MN