简介: 摘要:“1+X证书制度”是国家职业教育制度建设的一项基本制度,也是构建中国特色职业教育发展模式的一项重大创新制度。“1+X证书制度”的实施,必将助推职业学校改革承现新的面貌。
简介:摘要本文通过探讨唾液腺腺样囊性癌中Id-1的表达水平及意义。得出结论Id-1蛋白在唾液腺腺样囊性癌中表达增高,提示它可能在肿瘤的发生和发展中具有一定的作用。
简介:为了保证“双证制”教育的顺利实施,各专业可首先确定几个国家职业技能鉴定工种,再将职业技能理论考核内容与相关课程的教学相融合,将职业技能操作考核内容与实习实训教学相结合,以培养出更加符合职业岗位要求的高级技术应用型人才。
简介:小辰是一个让我有点头疼的孩子,集体活动时,老师大声讲,他眉飞色舞地小声说;区域活动时,他化身'小蛇'趴在地上游走于各个区域之间;户外做操时,他蹲在地上不知道在抠什么东西……为了帮他'改正缺点',我每天都要花费不少时间苦口婆心地提醒他,有时甚至要严厉地批评他才能奏效。今天晨间接待时,小辰递给我一个塑料袋,告诉我袋子里有给我的'书'。'好的。'我接过袋子随手放在柜子上,继续进行接待工作。接下来繁忙的工作让我忘记了袋
简介:In2010,Hwang,etal.proposeda'DoS-resistantID-basedpasswordauthenticationschemeusingsmartcards'asanimprovementofKim-Lee-Yoo's'ID-basedpasswordauthenticationscheme'.Inthispaper,wecryptanalyzeHwang,etal.'sschemeandpointoutthattherevealedsessionkeycouldthreatthesecurityofthescheme.Wedemonstratethatextractinginformationfromsmartcardsisequaltoknowingthesessionkey.Thusknownsessionkeyattacksarealsoeffectiveundertheas-sumptionthattheadversarycouldobtaintheinformationstoredinthesmartcards.WeproposedanimprovedschemewithsecurityanalysistoremedytheweaknessesofHwang,etal.'sscheme.Thenewschemedoesnotonlykeepallthemeritsoftheoriginal,butalsoprovidesseveraladditionalphasestoimprovetheflexibility.Finally,theimprovedschemeismoresecure,efficient,practical,andconvenient,becauseellipticcurvecryptosystemisintroduced,theexpensivesmartcardsandsynchronizedclocksystemarereplacedbymobiledevicesandnonces.
简介:Inrecentyears,mteractingtopologicalinsulatorshaveemergedasnewfrontiersincondensedmatterphysics,andthehotlystudiedtopologicalKondoinsulator(TKI)isoneofsuchprototypes.Althoughitszero-temperatureground-statehasbeenwidelyinvestigated,thefinitetemperaturephysicsonTKIislargelyunknown.Here,weexplorethefinitetemperaturepropertiesinasimplifiedmodelforTKI.namelytheone-dimensionalp-waveperiodicAndersonmodel,withnumericallyexactdeterminantquantumMonteCarlosimulation.ItisfoundthatthetopologicalHaldanephaseestablishedforgroimdstateisstillstableagainstsmallthermalfluctuationanditscharacteristicedgemagnetizationdevelopsatlowtemperature.Suchfactsemphasizetherobustnessof(symmetry-protected)topologicalorderagainsttemperatureeffect,whichalwaysexistsatrealphysicalworld.Moreover,weusethesaturatedlow-Tspinstructurefactorandthe1/T-lawofsusceptibilitytodetectthefreeedgespinmoment,interestinglythelow-temperatureupturnbehaxiorofthelatteroneissimilartoexperimentalfindinginSniBgatT<50K.Itimpliesthatsimilarphysicalmechanismmayworkbothforidealizedmodelsandrealisticcorrelatedelectronmaterials.WehavealsoidentifiedanemergentenergyscaleTcr.whichsignalsacrossoverintointerestinglow-TregimeandseemstobetheexpectedRuderman-Kittel-KasuyaYosidacoupling.Finally,thecollectiveKondoscreeningeffecthasbeenexaminedanditisheavilyreducedatboundarywhichmaygiveafruitfulplaygroundfornovelphysicsbeyondthewellestablishedHaldanephaseandtopologicalbandinsulators.