简介:InNovember2004,oninternationalsymposiumwasheldinKunmingcapitalofsouthwestChina'sYunnanProvince,oneconomicdevelopmentvs.protectionofChina'sethniccultures.Participantsagreedthatthegatheringcameingoodtimeinviewofthefactthateconomicdevelopmentisposingagrowingthreattotheveryexistenceofethniccultures.
简介:TwopossiblereactionmechanismsofVS~+(~3∑~-,~1Γ)withCOinthegasphasehavebeenstudiedbyusingB3LYP/TZVPandCCSD(T)/6-311+G(3dr,3pd)methods:theO/Sexchangereaction(VS~++CO→VO~++CS)andtheS-transferreaction(VS~++CO→V~++COS).Thetworeactionsproceedviatwo-stepandone-stepmechanism,respectively.ThebarriersofthetripletandsingletPESsare30.6and50.9kcal/mol,respectively,forO/Sexchangereactionand7.3and50.2kcal/mol,respectively,fortheS-transferreaction.Theresultsindicatethatthetripletgroundstatereactionismorefavorable,andtheS-transferreactionismorefavorablethantheO/Sexchangereaction,whichisingoodagreementwiththeexperimentalobservation.
简介:Aftersixroundsoftoughbargaining,RussiaandtheNorthAtlanticTreatyOr-ganizationreachedonMay14anagreement,officiallyknownasa“FoundingActonMutualRelations.Co-operationandScuritybetweenNATOandtheRUS-sianFederation".ThedocumentwasformallysignedbyRussianPresidentBorisYeltsinonMay27inParistogetherwiththeleadersofthe16NATOmemberstates.TheeventsignifiesatemporarycompromisebetweenthetwosidesovertheNATO’seastwardexpansion.Soonaftertheaccordwasreached,PresidentBillClintonapplaudeditashavingclearedthewayforNATO’SenlargementandPresi-
简介:IntheirrecentpapersintheJournalofSportandHealthScienceonhamstringinjuriesinsprinting,~(1,2)andtheircorrespondingcommentariesoneachother'sresearch,3,4Yuetal.andLiuetal.proposeddifferentviewsofthemechanismsofmuscleinjuriesingeneral,andhamstringinjuriesinsprintingspecifically.WhileYuetal.~(1,3)arguedthatmuscleinjuriesareprimarily,ifnotexclusively,causedbymusclestrainmagnitudeineccentriccontractions,andthushamstringinjuriesoccurprimarilyat