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简介：Whereasconservativetherapiesaimtostalltheadvanceofdisease,regenerativemedicinestrivestoreverseit.Thecapacityofmosttissuestoregeneratederivesfromstemcells,butthereareanumberofbarrierswhichhavetobecircumventedbeforeitwillbepossibletousestem-cell-basedtherapies.Suchtherapies,however,areexpectedtoimprovehumanhealthenormously,andknowledgegainedfromstudyingstemcellsincultureandinmodelorganismsisnowlayingthegroundworkforaneweraofregenerativemedicine.Oneofthemostprominentmethodstostudystemcelldifferentiationistoletthemtoformembryoidbodies.Underfavourableconditionsanystemcelllinewillformembryoidbodies.However,themechanismoftheformationofembryoidbodiesisnotverywellunderstood,andtoproducetheminthelaboratoryisinnowaytrivial-animportanttechnicalbarrierinstemcellresearch.Recently,theembryoidbodycultivationstephasbeensuccessfullycircumventedforthederivationofosteogenicculturesofembryonicstemcells.Herewereportonasimpleandreusablesystemtocultivateembryoidbodiesinextremelyshorttimes.Themethodisinspiredbytheprinciplesthatleadtotheestablishmentofthebiomimetictriangle.

简介：帝国大厦是纽约最著名的摩天大楼。大厦里面设有观望台、饭店、商店及办公室。每年均有超过三百万名游客前来参观。

简介：随着生活节奏的加快，形态迥异的压力接踵而来：生存压力、升学压力、工作压力等，这一切无不困扰着我们的生活与学习。对于压力你又了解多少呢？你又有什么样的妙招儿对付它呢？现在的你正承受着什么样的压力？本文以假日压力为例，帮你认识并缓解压力。一起加入到减压的队伍中来吧!

简介：<正>Fortoolong,China,thesleepinggiant,wasleftunnoticedbytherestofthesportworld.Thegiant,however,awokefromtheslumberandhasrisentothetopoftheworldofsportssincethe1980s.ThroughoutthemonumentalBeijing2008SummerOlympicGames,theworldtooknoticeattheoutstandingperformancesoftheChineseathleteswhotook51goldmedals,surpassingthesuperpowersUSAandRussia,andmadeChinathecountrywinningthemostgoldmedals.China’sstrongpresenceattheOlympicGames,ascommentedbyInternational

简介：Since1994,avigourousdevelopmenthasemergedinChina’sconstructionthankstotheremarkableprogressofoureconomicreformandthecontinuous,stableandhealthygrowthofthenationaleconomyThenationalkeyconstructionprojectshavebeenspeededupwiththeimprovedcompletionofinvestmentplansandcapitalfunds,comparedto1993.Themacrocontrolofrealestatehasachieved

简介：July4,2012(thesixthdayofthefifthlunarmonth)wasthe"auspiciousday"selectedbyLongZaiyunandhiswifeMaMeizhen,acouplelivinginthevillageofLixin,MalichangTown,HuayuanCounty,HunanProvince.Thiswasthedayforbuildingthetimberframeoftheirnewwoodenhouse.FortheMiaopeople,beforeerectingthetimberframe,thefoundationofthehouseneedstobeinstalledandthetimbersmovedclosealongside.Treesonthenearbyhill,pre-selectedastimbersforthehouse,aretiedaroundwithredclothtomarkthemoutforfellingwhenthehouseownercomesalongwithfriendstocutthemdown.

简介：TheNo.4PrisonofHenanProvincehasenabledinmatestogenuinelyreformthemselvesthrougheffectiveeducation,therebyachievingmaximumsecurityfortheprisonbyeliminatingorholdingincheckany

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简介：PolygonalobjectisafundamentaltypeofgeometricdatainvectorGIS.Thekeystepofcleaningtopologicalrelationshipafterdatacollectionofpolygonallayeristobuildpolygonalobjectsfromdigitalarcs.Therawdigitalarcsmayintersectwitheachother.Thealgorithmforbuildingpolygonalobjectsaftertherawarcshavebeensplitatallintersectionsispresented.Thebuild-upofpolygonalobjectsinthispaperisdesignedtobeimplementedbytwosteps.Thefirststepistoextractallthepolygonsneededforbuild-upofpolygonalobjectsfromarcs.Thesecondstepistoorganizepolygonalobjectsfromthesepolygons.Forthefirststep,atracingalgorithmisproposed.Thealgorithmmerelyextractsthepolygonsneededforthebuild-upofpolygonalobjects,whichisasubsetofallthepossiblepolygonsthatcanbeinducedfromthearcs.Forthesecondstep,analgorithmbasedonaspeciallydesignedorderofpolygonsisadvanced.Allthetopologicalrelationshipsamongthepolygonsaresho

简介：Harmonioussocietyistheidealsocietythatmankindhasunswervinglypursued.Respectingandprotectinghumanrightsisthemotiveforceforharmonioussocialdevelopment.Ensuringfull

简介：Inrecentyears,theWesthasbeenpracticing'newinterventionism'underthesignboardof'ResponsibilitytoProtect'('R2P')andthecoverof'humanitarianintervention',whichruns

简介：THEpublishingindustryisflourishingandbecomingmoreandmoredynamicinChinatoday.Amongthe500pub-lishinghouses,thepeople'sEducation

简介：SincePresidentHuJintaoformallyputforwardtheideaof'buildingaharmoniousworld'forthefirsttimeatthesummitmeetingcommemoratingthe60thanniversaryofthefoundingtheUnitedNationsinSeptember2005,therehasbeenloudresonanceathomeandabroad.TheForeignAffairsWorkConferenceoftheCentralCommitteeoftheCommunistParty