学科分类
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6 个结果
  • 简介:R.J.Rhodes'sreaderfocusesonthepoliticalinstitutions,politicalactivity,historyandnatureofAtheniandemocracyandintroducessomeofthebestBritish,American,German,andFrenchscholarshiponitsorigins,theory,andpractice.Thechaptersofthisbookaregroupedaccordingtothekindoftopicinvestigated,andvarietyofapproacheswillbefoundineachpartofthebook.PartIisdevotedtopoliticalinstitutions,withchaptersonAtheniancitizenship(Chapter1),

  • 标签: 政治形势 政治体制 公民权利 政治结构 《国家》 书评
  • 简介:GuoZhigang,male,Hannationality,wasborninOctober1954inBeijing.Heobtainedhisbachelor'sdegreeinDepartmentofIndustrialEconomicsandManagementofRenminUniversityofChinain1982;master'sdegreeinDepartmentofSociologyofUniversityofWesternOntarioinCanadain1985;anddoctor'sdegreeinPopulationResearchInstituteofRenminUniversityofChinain1990.Heengagedinteachingandresearchfrom1985to1999inPopulationResearchInstituteofRenminUniversityofChina.Currently,heisprofessoranddoctoraltutorofDepartmentofSociologyofPekingUniversity.

  • 标签: 世界人口 中国人民大学 北京大学 博士生导师 工业经济 社会学
  • 简介:1.ContactInformationDepartmentofBiologicalInvasions,InstituteofPlantProtection(SouthCampus),ChineseAcademyofAgriculturalSciences,#12SouthStreetofZhong-Guan-Cun,Beijing,100081,ChinaPhone:+86-10-82109572;Fax:+86-10-82105927

  • 标签: 摘要 编辑部 编辑工作 读者 GUO
  • 简介:WeinvestigatethenonlinearSchrdingerequationiut+△u+|u|p-1u=0with1+4/N||Q||(1-sc)/sc|▽Q||2,theneitheru(t)blowsupinfiniteforwardtimeoru(t)existsgloballyforpositivetimeandthereexistsatimesequencetn→+∞suchthat||▽u(tn)||2→+∞.HereQisthegroundstatesolutionof—(1—sc)Q+△Q+|Q|p-1Q=0.Asimilarresultholdsfornegativetime.Thisextendtheresultofthe3DcubicSchr(o|¨)dingerequationobtainedbyHolmertothegeneralmass-supercriticalandenergy-subcriticalcase.

  • 标签: NLS方程 SCHRODINGER forward 发散 EXTEND cubic