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1、Scale-FreeNetworks:ADecadeandBeyondAlbert-LászlóBarabási,etal.Science325,412(2009);DOI:10.1126/science.1173299Thefollowingresourcesrelatedtothisarticleareavailableonlineatwww.sciencemag.org(thisinformationiscurrentasofJuly26,2009):Updatedinformationandservices,includinghigh-resolutionfi
2、gures,canbefoundintheonlineversionofthisarticleat:http://www.sciencemag.org/cgi/content/full/325/5939/412SupportingOnlineMaterialcanbefoundat:http://www.sciencemag.org/cgi/content/full/325/5939/412/DC1Thisarticlecites21articles,4ofwhichcanbeaccessedforfree:http://www.sciencemag.org/cgi/
3、content/full/325/5939/412#otherarticlesThisarticleappearsinthefollowingsubjectcollections:Sociologyhttp://www.sciencemag.org/cgi/collection/sociologyInformationaboutobtainingreprintsofthisarticleoraboutobtainingpermissiontoreproducethisarticleinwholeorinpartcanbefoundat:http://www.scien
4、cemag.org/about/permissions.dtlonJuly26,2009www.sciencemag.orgDownloadedfromScience(printISSN0036-8075;onlineISSN1095-9203)ispublishedweekly,exceptthelastweekinDecember,bytheAmericanAssociationfortheAdvancementofScience,1200NewYorkAvenueNW,Washington,DC20005.Copyright2009bytheAmericanAs
5、sociationfortheAdvancementofScience;allrightsreserved.ThetitleScienceisaregisteredtrademarkofAAAS.PushingNetworkstotheLimitpropertyofmanycomplexnetworks”(7),itwasPERSPECTIVEmoreofapredictionthanafact,becausenaturecouldhavechosenasmanydifferentarchitec-Scale-FreeNetworks:ADecadeturesasth
6、erearenetworks.Yet,probablythemostsurprisingdiscoveryofmodernnetworktheoryistheuniversalityofthenetworktopology:andBeyondManyrealnetworks,fromthecelltotheInternet,independentoftheirage,function,andscope,Albert-LászlóBarabásiconvergetosimilararchitectures.Itisthisuni-versalitythatallowed
7、researchersfromdifferentFordecades,wetacitlyassumedthatthecomponentsofsuchcomplexsystemsasthecell,thedisciplinestoembracenetworktheoryasacom-society,ortheInternetarerandomlywiredtogether.Inthepastdecade,anavalancheofresearchmonparadigm.hasshownthatmanyrealnetworks,independentof
