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简介：Poly[(alanino乙醇酉旨)0.67(glycino乙醇酉旨)0.33phosphazene(PAGP)被综合，并且electrospunPAGPnanofibers的形态学和直径被使用与改变象应用电压那样的重要处理变量扫描电子显微镜(SEM)的凉爽的领域排出物系统地评估，聚合集中，和周围的温度。PAGPnanofibers的平均直径与应用电压相反地成正比，但是随答案集中的增加增加了。更低的环境温度由于nanofibers粘著是相反的。

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简介：Aseriesof5-aminolevulinicacidanditsalkylestermethanesulfonateswasexploitedtophotodynamictherapy(PDT)ofhumanlymphocyticcells,U-937invitro.ThePDTefficiencyisinfluencedbytheconcentrationandincubationtime.Generally,forALAanditsalkylestermethanesulfonates,thecellsurvivalratedecreasesandtheaccumulationabilityofPpIXincreaseswiththeconcentrationandincubationtime.Wefoundthatthelongercarbonchainmethanesulfonates(C5-S,C6-S,C8-S)exhibitbetterPDTeffectthanALAmethanesulfonate.ThispossiblyprovidesapromisingroutetotheclinicalapplicationofPpIX-mediatedPDTtocancercell.

简介：4,4-Dialkyl-2-oxazolin-5-onesarepreparedbyonestepreactionof2-oxazolin-5-onewiththemagnesiummethylcarbonate(MMC)andalkyIhalides.Itisanovelandconvenientmethodforsynthesisofα,Υ-disubstitutcdα-aminoacidbyhydrolysisof4,4-dialkyl-2-oxazolin-5-ones.

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简介：酸不稳定的硫化物(AVS)在影响二价的猫的毒性起一个重要作用，是众所周知的在缺氧的沉积以内的离子的金属。在学习在Jiaozhou海湾以内从潮滩收集的沉积岩心试样，中国，我们发现AVSconcentration逐渐地与深度增加并且从高潮滩减少到低潮滩区域。我们基于同时提取的金属(SEM)和AVS的臼齿的比率在潮滩评估了化学活动和重金属的简历可获得性。SEM/AVS的价值通常除了表面层在这个区域是不到1，它建议重金属仅仅在表面层举办化学活动。SEM最高度在氧化还原作用层的边界被集中。SEM在整个潮滩有类似的深度分布。低潮滩沉积的Theaeration显示SEM逐渐地经由孔隙水搬到更深的地点。

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简介：被西诺佩克·扬齐·布朗奇同伴和BP同伴联合要构造的500kt/a醋酸工程上的开创性的仪式在March23,2007.This工程上在南京被举行，在哪个等于13.9亿RMB的全部的投资，是Yangzi-BP乙酰同伴的最大的工程，在Yangzi石油化学的公司(YPC)和有50:50的一张公平股票的BP之间的JV。

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简介：ThedynamiccompetititveadsorptionbehaviorsofdifferentbinaryorganicvapormixturesonACF-Psunderdifferentoperationconditonswereinvestigatedbygaschromatographyinthispaper,Thestudiedmixtruesincludedbenzene/toluene,toluene/xylene,benzene/isopropylbenzeneethlyacetate/tolueneandbenzene/ethylacetate.ExperimentalresultsshowthatvariousACF-Ps,aswithACF-W,canremovebothvaporsinbinaryvapormixtureswithover99%ofremovalefficiencybeforethebreakthroughpointofthemoreweaklyadsorbedvapor,Indynamiccompetitiveadsorption,themoreweaklyweakleadsorbedvapornoeonlypenetratesearly,butalsowillbedisplacedanddesorbedconsequentlybystrongeradsorbateandthereforeproducesarollingupinthebreakthroughcurve,TheACF-Pspreparedatdifferenttemperatuershavesomewhatdifferentadsorptionselectivity,Thefeedconcentrationratioofvapros,thelength/diameterratioandthethickofbedhaveeffectoncompetitiveadsorption.Thecompetitiveadsorptionabilityofavaporismainlyrelatedtoitsboilingpoint.Usually,thehighertheboilingpoint,thestrongerthevaporadsorbedonACF-P.

简介：Objective:ToinvestigatethemembranelocalizationfunctionoftheCX26proteinwhenits86thaminoacidisThr,SerorArg,anditsrelationstodeafness.Methods:CX26-GFPproteinwitheitherThr,SerorArgasthe86thaminoacidwasexpressedinmouseSGNcellsviatheGFPfusiontypelentivirusexpressionsystem.Themembranelocalizationofthefusionproteinwasobservedunderafluorescencemicroscope.Results:ThemutatedproteinofCX26T86Swaslocalizedtocellmembraneandformgapconjunctionstructures,showingnodifferencetothewildtypeCX26protein(withThrasthe86thaminoacid).However,thegapconjunctionstructuredisappearedwhenthemutationwasCX26T86A.Conclusion:TheseresultsindicatethattheCX26T86Rmutationmaybeacauseofhearingloss,butCX26T86Sasanon-pathogenicpolymorphismmutationdoesnotaffectfunctionsoftheCX26protein.Theresultsareinaccordancewiththeresultsofclinicalscreening.

简介：Amethodofmulti-beamfemtosecondlaserirradiationcombinedwithmodifiedHF-HNO_3-CH_3COOHetchingisusedfortheparallelfabricationofall-siliconplano-concavemicrolensarrays(MLAs).Thelaserbeamissplitbyadiffractiveopticalelementandfocusedbyalenstodrillmicroholesparallelyonsilicon.AnHF-HNO_3-H_2SO_4-CH_3COOHsolutionisusedtoexpandandpolishlaser-ablatedmicroholestoformmicrolenses.ComparedwiththeHF-HNO_3-CH_3COOHsolution,thesolutionwithH_2SO_4caneffectivelyreducetheetchedsurfaceroughness.ThemorphologiesofMLAsatdifferentlaserpowersandpulsenumbersareobserved.Theimagearrayformedbythesiliconmicrolensesisalsodemonstrated.

简介：Thecruxoftissueengineeringistoconstructhighlyporousthree-dimensionalscaffoldwithdesiredcellsonit.Becausethescaffoldservesasbothaphysicalsupportandanadhesivesubstrateforisolatedcellsduringinvitrocultureandsubsequentimplantation,thematerialsforscaffoldshouldbenon-toxicandbiocompatible,highlyporousandprocessableintodevicesofvariousshapes.

简介：Acidsulfatesoils(ASS)containconsiderableamountsofreducedsulfurcompounds(mainlypyrite)whichproducesulfuricacidupontheiroxidation.ASS-derivedenvironmentaldegradationwidelyoccursinthecoastallowlandsaroundtheworld,especiallyinthetropicalandsubtropicalareas.ThepresenceofASSiuntheSouthChinahasbeenrecognizedbuttheirdistributionmaybelargelyunderestimatedbecausethesoilsurveydataconcerningASSarebasedonunreliablemethodsandtechniques.ASSintheSouthChinahavebeentraditionallyusedforricecultivationandthispracticehasbeenprovedsustainableifappropriateimprovementmeasuresareadopted.Recently,therapideconomicgrowthintheregionhasresultedinintensifiedcoastaldevelopmentwhichfrequentlyinvolvesactivitiesthatmaydisturbASS,Constructionofroads,foundationsandaquaculturepondsmaycausetheexposureofASStoairandbringaboutsevereenvironmentalacidificvation.Thereiscurrentlyinsufficientawarenessoftheproblemsamongtheresearchers,policy-makersandlandmanagersintheSouthChina.MoreattentionmustbepaidtothepossibleASS-dervivedenvironmentaldegradationinordertoensureasustainabledevelopmentofthecoastallowlandsintheSouthChinaregion.

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简介：ThisstudysoughttoidentifydifferentiallyexpressedproteinsinSH-SY5Ycellstreatedwithvalproicacid,usingtwo-dimensionaldifferencegelelectrophoresisanalysis.Threeproteinswereunambi-guouslyidentified:theeukaryotictranslationinitiationfactor4Aisoform1andATP6V1B2proteinweredownregulated,whiletheheterogeneousnuclearribonucleoproteinKwasupregulated.Moreover,allthreeproteinsareassociatedwithalteredexpressionduetooxidativestress.Ma-trix-assistedlaserdesorption/ionization-timeofflightmassspectrometryandproteinimmunoblottingassayconfirmedthedifferentialexpressionofeukaryotictranslationinitiationfactor4Aisoform1.Theresultsindicatethatvalproicacidexertsanantioxidationeffectbyregulatingtheexpressionofeukaryotictranslationinitiationfactor4Aisoform1.