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156 个结果
  • 简介:Representingtheappealsofitsindustry,thehigh-techinterestgrouphasrecentlybecomeanemergingpoliticalforceintheUnitedStates.Withabundantfinancialresourcesandproficiencyinpoliticalcommunication,thegrouprapidlygrowstobeasignificantforceintheAmericanpoliticalsphere.IthasstartedtoaffecttheinternalandforeignaffairsoftheU.S.andplayedaproactiveroleinthelatestpresidentialelection.Sincethehigh-techinterestgrouphasalreadybecomeandwillcontinuetobeabigplayerinSino-U.S.relations,Chinashouldcarefullydealwithitsappealsandconflictofinterests,andtrytodevelopthisgroupintoastabilizerbetweenthetwocountries.

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  • 简介:GliomacelllineC6culturedonsiliconsurfacesmodifiedbydifferentchemicalfunctionalgroups,includingmercapto(-SH),carboxyl(-COOH),amino(-NH2),hydroxyl(-OH)andmethyl(-CH3)groups,wasstudiedheretoinvestigatetheinfluenceofsurfacechemistryonthecellproliferation,adhesionandapoptosis.AFMconfirmedthesimilarcharacteristicofdifferentfunctionalgroupsoccupation.TheadheringC6exhibitedmorphologicalchangesinresponsetodifferentchemicalfunctionalgroups.TheC6adheredto-COOH,-NH2,-OHand-CH3surfacesandflattenedmorphology,whilethoseon-SHsurfaceexhibitedthesmallestcontactareawithmostlyroundedmorphology,whichledtothedeathofcancercells.TheresultsofMTTassayshowedthatthe-COOHand-NH2groupspromotedceilproliferation,whilethe-SHsignificantlyinhibitedtheproliferation.Comparedwithotherchemicalfunctionalgroups,the-SHgroupexhibiteditsuniqueeffectonthefateofcancercells,whichmightprovidemeansforthedesignofbiomaterialstopreventandtreatglioma.

  • 标签: GLIOMA cell line C6 CHEMICAL FUNCTIONAL
  • 简介:ThisarticleobtainsanexplicitexpressionoftheheatkernelsonH-typegroupsandthenfollowtheestimateofheatkernelstodeducetheHardy'suncertaintyprincipleonthenilpotentLiegroups.

  • 标签: 不确定性原理 类型分析 热核函数 数学
  • 简介:Thisreviewfocusedontherecentreportsrelatedtothefunction,characterizationandmodificationofoxygen-containingsurfacegroupsofactivatedcarbon(AC).TheOxygen-containingsurfacegroupswerebrieflydescribed,andthemostfrequentlyusedtechniquesforcharacterizationoftheoxygen-containingsurfacegroupsonACswerealsobrieflystated.Adetaileddiscussionoftheeffectsoftheoxygen-containingsurfacegroupsontheadsorptivecapacityofACwasgiven.Therecentprogressesinmodificationoftheoxygen-containingsurfacegroupsofACwerealsoreviewed.

  • 标签: 活性碳 含氧表面基团 表面化学 表面修饰 吸附能力
  • 简介:WeextendtheconceptofframemultiresolutionanalysistoalocallycompactabeliangroupanduseittodefinecertainweightedBanachspacesandthespacesoftheirantifunctionals.Wedefineanalysisandsynthesisoperatorsonthesespacesandestablishthecontinuityoftheircomposition.Also,weproveageneralresulttocharacterizeinfinitetreesintheaboveBanachspacesofantifunctionals.ThispaperpavesthewayforthestudyofcorrespondingproblemsassociatedwithsomeothertypesofBanachspacesonlocallycompactabeliangroupsincludingmodulationspaces.

  • 标签: 巴拿赫空间 无限树 伴随算子 紧阿贝尔群
  • 简介:在黄金涂的玻璃表面上有教养的Neuronal祖先房间由不同的化学的功能的组修改了,包括氢氧根(-OH),carboxyl(-COOH),氨基(-NH2),bromo(-Br),mercapto(-SH),-苯基和甲基(-CH3),这里被学习在房间粘附上调查表面化学的影响,形态学,增长和功能的基因表示。染色在起始的文化阶段房间显示了的焦点的粘附响应不同的化学的功能的组展出了词法变化。在-NH2grafted表面上有教养的房间显示了焦点的粘附匾并且弄平形态学并且有最大的接触区域。然而,他们-CH3grafted表面上的相反的部分没显示焦点的粘附和圆形态学并且有最小的接触区域。在6天文化以后,增长趋势如下:-NH2>-SH>-COOH>-苯基>-Br>-OH>-CH3。为了决定细胞的神经功能的性质,由表面化学,glutamatedecarboxylase(GAD67)的表示,神经生长因素(NGF)和brainderived影响了神经营养的因素(BDNF)被描绘。GAD67表示的增加在-NH2,-COOH上被观察,嘘,grafted出现,当NGF和BDNF表示的增加都没在任何化学表面上被观察时。这些结果在neuronal祖先房间的命运决心强调表面化学的重要性,并且建议表面化学必须为神经织物工程在biomaterials的设计被考虑。

  • 标签: 脑源性神经营养因子 化学官能团 祖细胞 表面化学性质 形态学变化 细胞培养
  • 简介:TheHarish-ChandrahomomorphismforthehighercongruencesphericalfunctionsalgebraofChevalleygroupsoverp-adicfiealdsisgiveninthecaseoftheLevi-componentofa(rational)parabolicstlbgroup.ItisageneralizationfortheHarish-ChandrahomomorphismforthehighercongtrencespherlcalfunctionsalgebraofthegroupsGLnoverp-adicfieldinthesamecase.

  • 标签: 同态 切瓦利群 部分相似 双曲型子群
  • 简介:TheOrdovicianChangtuFaunaisrecentlydiscoveredintheXia’ertaiandHulanGroupsinnorthernLiaoning-centralJilin.Thefauna,containing10generaand14species(including3newgenera,9newspeciesandanunidentifiedspecies),iscloselyrelatedinevolutionwiththeEarlyCambrianQinghezhenFauna.Thediscoveryofthisfaunaissignificanttothestudyontheageofthestrata,Ordovicianbiostratigraphyandgeo-logicalevolutionofthetectonostratigraphicalterraneonthenorthernmarginoftheSino-Koreanplate.

  • 标签: Northern Liaoning-central Jilin ORDOVICIAN Changtu FAUNA
  • 简介:Fourpolymerscontainingfive-memberedringsinthemainchain,withorwithoutconjugationstructurealongthebackboneandwithorwithoutconjugatedpendentgroups,weredesignedandsynthesizedbymetathesiscyclopolymerizationoffunctionalizedα,ω-diynes,andcyclopolymerizationoffunctionalizedα,ω-dienescatalyzedbytheα-diiminepalladium-basedcatalyst,respectively.Hightomoderatemonomerconversionswereachieved.Chainstructure,molecularweight,andmolecularweightdistribution(MWD)ofthecyclopolymerizationproductswerecharacterizedby1H-,13C-NMR,FTIR,andGPC.Thepolymersshowedregularmainchainstructures,moderatelyhighmolecularweight,andnarrowMWD.Thermalpropertiesandchainstackingbehaviorsofthepolymerswereinvestigatedbydifferentialscanningcalorimetry(DSC)andX-raydiffraction(XRD)aswellasatomicforcemicroscopy(AFM).ThepolymerwithconjugationsysteminboththebackboneandthependentgroupsexhibitedUV-Visabsorptionatamuchlongerwavelengththanthosewiththeconjugationonlyinthebackboneoronlyinthesidegroups.Thepolymerswithconjugatedbackboneneedmorespaceforchainstacking,andtheconjugatedbackbonecausesenhancedsizeofpolymerparticlesassembledfromsolution.Theresultsshowedthatprimarymicrostructuresofthepolymerexertedsignificantinfluencesonthephysicalproperties.

  • 标签: CYCLOPOLYMERIZATION α ω-Diene α ω-Diyne CONJUGATION system Properties
  • 简介:CoupleddynamicanalysisoftheDeepDraftMulti-Spar(DDMS)platformandthemooringsystemundertheactionofwavesandcurrentiscarriedoutinthetimedomain.Usingageometricallynonlinearfiniteelementmethod,themooring-linedynamicsissimulatedbasedonthetotalLagrangianformulation.WavegroupsareobtainedbytheJONSWAPspectrumandanempiricalwaveenvelopespectruminvolvingtwoenvelope-basedfactorsGroupHeightFactor(GFH)andGroupLengthFactor(GLF).Theresultsshowthatthewavegroupshaveasignificanteffectonthemotionresponsesoftheplatformandthemooringlinetensions.

  • 标签: 动力响应分析 电流波 平台 非线性有限元法 耦合动力分析 系泊系统
  • 简介:生一个anthraquinoneimide(AQI)组的基于胆固醇的organogelator被综合并且描绘。它进chiral自我装配在在低集中的acetonitrile的胶化,它显示了electrochromic和chiroptical性质的联合。在在700mV的电气化学的减小之上,胶化在相应于的约820nm展出了新吸收乐队**(SOMOLUMO)在一样AQI和强壮的否定棉花效果的激进的阴离子转移光谱区域。与在1000mV的进一步的减小,有在到800nm的从500nm的范围的否定棉花效果的一个新CD乐队出现了有吸收光谱的变化的伴随物。因此,与是的electrochromicAQI色基的使用一个开关应答的单位和复合的N-的稳定的胶化[3-cholest-5-en-3-ylN-(2-aminoethyl)氨基甲酸酯]是的anthraquinone-2,3-dicarboxylicimidechiral脚手架,在可见、在红外线附近的区域操作的一个被触发氧化还原作用的chiroptical开关被认识到。

  • 标签: 二甲酰亚胺 复合凝胶 氨基蒽醌 电致变色 可见光 旋光
  • 简介:新pyrene-spacer-maleimide二1被用来有选择地面对另外的氨基酸检测半胱氨酸,并且顺序与dithiols反应与显示出典型excimer的二个分核单位产生分子荧光。因此,二1能与一或二个thiol组一起区分分子。

  • 标签: 果核 激基缔合物 马来酰亚胺 硫醇
  • 简介:在表面上co有教养的肝正常房间和癌症房间由不同的化学的功能的组修改了,包括mercapto(-SH),氢氧根(-OH)和甲基(-CH3个)组。结果证明不同房间响应不同表面展出了变化。正常房间在上当癌症房间不能在-CH3组织,它也死了。在合作文化系统,-CH3组展出了它能触发癌症房间的死亡并且没在正常房间上有效果的唯一的效果。我们的调查结果为有效、安全的再生药材料的设计在策略上提供有用信息。

  • 标签: 共培养体系 化学官能团 抑制效果 肿瘤 体外 正常细胞