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简介:ToobservetheeffectofGardeniaextractZGontheadsorptionquantityofherpessimplexvirustype1(HSV-1)soastoexplorethemechanismofitsantiviralactivity,fluoresceinisothiocyanate(FITC)wasusedasthefluorescentprobetolabelvirusesandheparinsodiumwasusedascontrol.Meanwhile,theeffectofGardeniaextractZGontheadsorptionquantityonthesurfaceofHep-2cellswasdeterminedbyflowcytometry.ItwasdemonstratedthatadsorptionofHSV-1onthesurfaceofHep-2cellsexhibitedthecharacterofsaturationandspecificityandheparinsodiumcouldpreventattachmentofvirusesonthesecells.Theseresultsareinaccordwiththosereportedpreviously.Itwasalsoprovedthatthemannerofdrug-usepriortoadsorptionorsimultaneoususeofdrugandadsorptionwasbetterthanadsorptionpriortodrug-use,andtheinhibitionratesoftheformerandlattermannerwere84.76%and82.92%respectively.Threemannersofdrug-usewithGardeniaextractZGwerealleffectivetoreducetheadsorptionquantityofviruses,especiallythemannerofsimultaneoususeofdrugandadsorptionwithanadsorptioninhibitionrateof68.46%.Fromtheaboveobservation,itisapparentthatthemechanismofanti-viralactivityofGardeniaextractZGmaybeviaseveralstepsinvolvedintheHSV-1adsorption.
简介:Theinsertionof1,1-bis(1′-naphthyl)ethylenemonomerunitintotheactivepolystyrenechainendgreatlydecreasedthereactivityoftheactivechainendtothecarbonylgroup,andallowedthepolymericchainendtoreactonlywiththedoublebondinN-methacryloylcaprolactam,resultinginN-acylcaprolactamfunctionalizedpolystyrenein100%conversion.Newdiblockcopolymerofpolystyrenewithpolycaprolactamwassynthesizedbydirectreactionofthefunctionalizedpolymerwithcaprolactamwithoutaddingadditionalalkalimetalortheircaprolactamsalts.
简介:摘要目的探讨甲型H1Nl流感患者护理经验。方法回顾性分析200例甲型HlNl流感患者住院临床资料和护理。结果200例确诊患者病体温正常、流感样症状消失≥3天,无并发症,临床情况稳定,全部治愈出院。结论做好发热期间病情观察,正确采集标本及用药后的观察,心理干预等对疾病康复起到积极作用,落实消毒隔离和防护流程有效控制院内感染的发生。
简介:世间万物,皆可入诗——当它们在诗人的头脑中成为各种有鲜明特点的形象,并且被想象的翅膀牵动着、呼之欲出的时候,也就是诗的婴儿呱呱堕地的时候。因为皆可入诗,才更要努力写出属于自己的、别具匠心的诗来。一切想象,一切联想,一切灵感,无不来源于生活。用眼睛去看——这是观察生活——有人看到的是云遮雾绕,有人看到的是云雾后面的真面目。用心灵去想——这是思索生活——此时此刻,需要的是冷静的审视和解剖——连同审视和解剖自己在内。思索得愈多,形象就愈活跃;思索得愈深,风格和特点就愈鲜明。当各种具体的形象,在头脑里跃跃欲动,成为活生生的时候,就是灵感出发的时候。我不愿意在有格子的稿笺上写诗的草稿——那些千篇一律的小框框教人讨厌,有时甚至使我感到愤慨——仿佛要夺走我的灵感,夺走我的想象似的。人云亦云最容易,也最没有出息。走自己的路,才有创造的天地.
简介:The^Siand^1Hhigh-resolutionliquid-phaseNMRhasbeenusedtoinvestigatethehydrolysisprocessofthetetraethylorthosilicate(TEOS).^1H-NMRspectroscopyshowsthatthehydrolysisofTEOSinTPAisfasterthaninTEA.TheimpactsofTPAandTEAontheTOEShydrolysisprocessanditshydrolyzedproductdistributionhavebeenobservedby^29Si-NMRrespectively.Theinfluencesofwaterandtheisopropylalcoholonhydrolysishavealsobeendiseussed.ThepresenceofTBOTmarksanevidentdifferentiationbetweenTPAandTEAforhydrolysisin^29Si-NMRspectra.
简介:Thehydrolysisreactionof(±)-2-acetamido-3-hydroxy-1-(4-nitrophenyl)-1-propanone[(±)-1],anintermediateofchloramphenicol,wasstudiedandthreedifferentproductswereobtainedrespectivelyunderdifferentreactionconditions.Theresolutionofhydrolysisproduct(±)-2-amino-3-hydroxy-1-(4-nitrophenyl)-1-propanone[(±)-3]wascarriedout.Aprocessofcrystallization-inducedasymmetrictransformationwasobservedandupto76%oftheopticallypureenantiomerwasobtainedintheresolutionof(±)-3.