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简介：Heptacyclo[6.6.0.02,6.03,13.04,11.05,9,010,14]tetradecaneisacage-shapedmoleculeofbothhighsymmetry(D2d)andhighrigidity.Inourpreviousreports,ithasbeenusedasanuniquespacergroupforelectrontransferprocessesbetweenadonor(D)andanacceptor(A)substituent.TheDandAchromophorescanbealignedalongastraightline,eithercoplanar(0°dihedralangle)orperpendicular(90°dihedralangle)withrespecttoeachother.Knowledgecollectedinthisworkmaybeusefulforthedesignofphoto-electronicdevices,suchaselectrochemicalsensors,photovoltaiccells,molecularrectifiersandswitches,etc.

简介：<正>Althoughapoptosishasbeenrecentlydocumentedtotransmitimmunosuppressivesignals,theirsignificanceinallogeneictransplantationhasnotbeenreported.Inthepresentstudy,weinvestigatedtheinfluenceofdonorapoptoticsplenocytesonallograftsurvivalinaSDtoWistarratcardiactransplantmodel.Donorsplenocyteswereisolatedandirradiatedwithultraviolet(UV)toinduceapoptosisinvitro.5x107apoptotic,necroticoruntreateddonorspleencellsweretransfusedpreoperativelyandcardiacallogeneictransplantation

简介：Thecompositiondistribution（CD）andmicroisotacticitydistribution（ID）ofpropene/1-hexenecopolymersynthesizedbyMgCl2/DIBP/TiCl4（DIBP:diisobutylphthalate）weredeterminedbyfractionatingthecopolymersaccordingtocrystallinityandcharacterizingthefractionsby13CNMR.Theeffectsoftwoalkoxysilanedonors,triethoxyphenylsilane（PTES）anddimethoxydi-tert-butylsilane（TBMS）,onCDandIDofthecopolymrswerecompared.ThreemainpartsintheCDdiagramofeachcopolymerweredistinguished,whichwerecorrelatedtoactivecenterdistribution（ACD）basedonthreegroupeofdif-ferentactivecenters.Bystudyingthechangesin1-hexenecontent,microisotacticityandreactivityratioproductofthreetypicalfractions,theeffectsofexternaldonoronACDwerebetterelucidated.ItwasfoundthatTBMSshowsmuchstrongereffectsonACDthanPTES.Intheformersystem,mostfractionswereproducedonactivecenterswithrelativelylowerr1r2,higherreactivityto1-hexene,andhigherstereospecificityascomparedtothesystemwithoutexternaldonor.ItisconcludedthattheobservedveryextensivechangesinACDaremainlyresultedbytheformationofnewtypesofactivecenters,possiblybycoordinationofexternaldonortocertainpositionsonthecatalyst.

简介：Theeffectsofanexogenousnitricoxidedonor(sodiumnitroprusside,SNP),aNOscavenger2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxode(PTIO)andcarboxy-PTIOpotassiumsalt(cPTIO)ontheembryogerminationofSorbuspohuashanensiswerestudiedinapetridishtest.SNPat0.5–5mmolL-1increasedgerminationpercentage,meantimetogermination,germinationindexandgerminationenergycomparedwiththecontroltodifferentdegrees.Treatmentwith2mmolL-1SNPimprovedgerminationmostsignificantly;embryogerminationpercentageformothertree1(91.11%)andmothertree2(64.44%)weremuchhigherthanthecontrol.Inaddition,excessiveSNPlevelsdidnotenhanceembryogermination.CombinedtreatmentwithSNPandanNOscavengerdelayedembryogermination.TreatmentwithcPTIOinhibitedembryogermination;germinationpercentagewas42.22%andwaslowerthanthatofthecontrol.TheseresultsshowthatlowconcentrationsofexogenousNOcanenhancetheembryogerminationofS.pohuashanensis,providingasimple,effectivewayforpromotinggerminationofS.pohuashanensis.

简介：AbstractBackground:Delayed graft function (DGF) is the main cause of renal function failure after kidney transplantation. This study aims at investigating the value of hypothermic machine perfusion (HMP) parameters combined with perfusate biomarkers on predicting DGF and the time of renal function recovery after deceased donor (DD) kidney transplantation.Methods:HMP parameters, perfusate biomarkers and baseline characteristics of 113 DD kidney transplantations from January 1, 2019 to August 31, 2019 in the First Affiliated Hospital of Xi’an Jiaotong University were retrospectively analyzed using univariate and multivariate logistic regression analysis.Results:In this study, the DGF incidence was 17.7% (20/113); The multivariate logistic regression results showed that terminal resistance (OR: 1.879, 95% CI 1.145-3.56) and glutathione S-transferase (GST)(OR = 1.62, 95% CI 1.23-2.46) were risk factors for DGF; The Cox model analysis indicated that terminal resistance was an independent hazard factor for renal function recovery time (HR = 0.823, 95% CI 0.735-0.981). The model combining terminal resistance and GST (AUC = 0.888, 95% CI: 0.842-0.933) significantly improved the DGF predictability compared with the use of terminal resistance (AUC = 0.756, 95% CI 0.693-0.818) or GST alone (AUC = 0.729, 95% CI 0.591-0.806).Conclusion:According to the factors analyzed in this study, the combination of HMP parameters and perfusate biomarkers displays a potent DGF predictive value.

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简介：Anelectrochromiccopolymerfilmof2-(3,3-dihexyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin-6-yl)-7-(3,3-dihexyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin-8-yl)-9H-carbazole(M1)and4,7-bis(thiophen-2-yl)benzo[c][1,2,5]thiadiazole(M2)waspreparedviaelectrochemicaltechnique.Thecopolymerizationwasperformedwithonetoonemonomerfeedratio.Electrochemicalandopticalpropertiesoftheresultingcopolymerfilm(P3)andthehomopolymerfilmsofM1andM2(P1andP2)wereinvestigatedbyusingcyclicvoltammetryandUV-Visspectrometrytechniques,andthecorrespondingresultswerecompared.IncorporationofM1andM2intocopolymermatrixwasclearlyobservedontheresultingcyclicvoltammogramsandUV-Visspectra.P3coveredthevisibleregionscomingfrombothP1andP2,andexhibitedaneutralstatedarkercolorthanthoseofhomopolymers.P3filmwasfoundtohaveamultichromicbehavior,appearingasbrowninitsneutralstatewhilechangingitscoloruponoxidationtodark-gray(atabout0.3V),toblue(atabout0.6V)andfinallytograyishcyan(beyond0.9V),withacorrespondingopticalbandgapof1.65eV.

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简介：penta醚混合物被di(trimethylolpropane)的反应作为烷基卤化物作为强壮的底和甲基碘化物与钠氢化物综合。这混合物被NMR，FTIR，和GC技术描绘。MgCl2-supported钛催化剂与作为内部施主改变penta醚化合物的数量被合并，也，没有内部施主的催化剂被综合。综合催化剂和常规Ziegler-Natta催化剂被描绘。钛内容被spectrophotometry决定，由由argentometric滴定的complexometric滴定和氯化物的镁。有准备MgCl2-supportedZiegler-Natta催化剂的丙烯聚合上的新内部施主的效果被调查然后这些结果与用常规diisobutylphthalate-besed-Ziegler-Natta催化剂获得的结果相比。聚丙烯的最高的crystallinity度，融化的温度，和isotacticity与penta-ether/Mg用催化剂被获得臼齿的比率平等者到0.21。

简介：我们在甲烷(POM)的部分氧化上调查了填满的格子氧的锻烧温度，反应温度，和不同数量的效果到把perovskite类型LaFeO3氧化物用作氧施主而不是气体的氧的合成气体，它被大音阶的第五音胶化方法准备，并且氧化物被XRD，TG/DTA，和赌注描绘。结果显示粒子尺寸增加了，锻烧温度增加，当赌注和CH4变换衰退了，锻烧温度当气体的氧不在时作为氧施主用LaFeO3氧化物增加时。在象上面那样的高水平仍然是的公司选择92%，并且当锻烧温度增加了，稍微增加了。到甲烷空气的LaFeO3氧化物的暴露提高了氧迁居在有由于格子氧和氧化说的Fe离子的减小的损失联机的时间的体积同时。高反应温度对从向为有高公司选择的合成气体生产的表面的体积的氧种类的迁居有利。为由顺序的氧化还原作用反应的POM的产品分发和进化被填满的格子氧的数量与气体的氧决定。最佳的过程应该衰退甲烷的全部的氧化，和增加甲烷的部分氧化的选择。

简介：TwonovelasymmetricorganicsmallmoleculesofIT(2FBT-T3Cz)2andIT(2FBT-TT3Cz)2withanindenothiophene(IT)centraldonorcore,fluorinatedbenzothiadiazole(2FBT)asacceptorand3-carbazole(Cz)unitasterminalgroupweredesignedandsynthesizedasthedonormaterialsinorganicsolarcells(OSCs).Thethermal,opticalabsorption,electrochemicalproperty,hole-electronmobility,filmmorphologywerethoroughlystudied.UsingPC71BMasanelectronacceptor,withoutanyadditiveandthermalannealing(TA)treatment,theIT(2FBT-T3Cz)2-basedcellsshowedapromisingpowerconversionefficiency(PCE)of5.81%andtheIT(2FBT-TT3Cz)2-basedcellsexhibitedaPCEof4.39%.OurresultsdemonstratethattheIT-basedasymmetricsmallmoleculescanbedevelopedasapromisingclassofdonormaterialsforhighperformanceOSCs.

简介：CornealdiseasesarecurrentlythesecondmaincauseofblindnessinChina.Althoughmostofthecornealblindnesscouldbetreatedbycornealtransplantation,onlyabout10000operationswerecarriedouteachyearowingtothesevereshortageofcornealdonorsandlimitedeyebankprograms.AfeasiblecorneadonationprogramwasestablishedthroughtheorganizationoftheRedCross,andinsitucornealremovaltechniquesweredevelopedtoavoidconflictswithChinesetraditionsofkeepingthedeceasedintact.Thenumberofdonatedcorneas,whichhadasafeandsecurequality,increasedsignificantlyyearbyyear.

简介：在那里存在单个核苷酸多型性，G或T，在施主的一垒拼接蜡制的基因intron的地点1在米饭。为了学习在施主的一垒之间的关系，拼接蜡制的基因intron的地点1并且在米饭的直链淀粉内容，一步舞PCR方法被用来决定它是否在从14个区域的220个云南土生土长的米饭变化是G或T，云南的55镇/县省，并且的101个变化被PCR-Acc验证我方法。根据G/T多型性，，164个米饭变化显示出GG遗传型另外的56掉进TT遗传型，为74.5%所有测试变化和25.5%的财务分别地。当所有米饭变化被划分成indica和装饰用的梨树亚种时，80.5%indica米饭和67.0%装饰用的梨树米饭属于GG遗传型，这被发现。有GG遗传型的米饭变化有显著地更高的直链淀粉内容(18.95%平均)比那些与TT遗传型(都低于16%)，但是有GG遗传型的33个米饭变化仍然有低直链淀粉内容从3.91%～15.93%，并且他们中的大多数来自奶妈在云南的西南的少数区域省。然而，在在indica和装饰用的梨树米饭之间的一样的GG或TT遗传型的吝啬的直链淀粉内容没有重要差别，建议那不同基因背景，indica或装饰用的梨树，没在直链淀粉内容上有效果。在遗传型和直链淀粉内容之间的关联的系数是0.733(P<0.01)。

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简介：BACKGROUND:Nerveallograftrejectionisanunavoidableproblemfornerveallografts.Traumaticperipheralnerveinjuriesarecommonlyreconstructedusingautogenousnervegrafts.However,thisformofreconstructionislimitedbyinsufficientautologousnervesforlargegaprepairsandbymorbidityatthenervedonorsite.OBJECTIVE:ToexaminesciaticnerveregenerationandimmunetolerancereactionafterintragastricadministrationofultravioletB-irradiated(UVB)donorsplenocytes.DESIGN,TIMEANDSETTING:Acompleterandomizedgroupingdesignandcontrolledexperiment.TheexperimentswereconductedintheDepartmentofOrthopedics,theFirstAffiliatedHospitaltoShanxiMedicalUniversity,China,betweenMarchandOctober2007.MATERIALS:FourteenadultmaleSDratsandfourteenmaleWistarrats,weighing250–300g,wererandomlymatchedasdonorsandacceptors.AfurthersevenmaleSDrats(weight250–300g,age12–16weeks)wereusedfornerveisografts.ImmunepreparationsandtheEpicsXLflowcytometerwerepurchasedfromB-DCompany,USA.Acomputer-assistedelectromyographmachinewasprovidedbyKeypointP,DantelCompany,Denmark.METHODS:SplenocytesfromWistarratswereisolated,purified,andcultured,andthenirradiatedwithultravioletB.Inthefirstcontrolgroup(Group1),theSDratsreceivedasyngeneicSDnerveisograft.Inthesecondcontrolgroup(Group2),theSDratsreceivedanerveallograftfromWistarratswithoutpretreatment.Intheoral-tolerancetreatedgroup(Group3),theSDrecipientratswereinoculatedwith2.5×107LewisUVB-irradiateddonorsplenocytecellsbyintestinaltractadministrationatsevendaysbeforetransplantation.MAINOUTCOMEMEASURES:(1)Therecentendandthemiddleanddistalendofthetransplantednervewerecutat8and12weeksafteroperation.RecoveryofnerveregenerationwasmeasuredwithHEstainingusingthetotalnumber,density,anddiameterofthenervefibers.(2)ThelevelofCD25+Tlymphocytesinperipheralbloodwasdetec

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