首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   86267篇
  免费   3575篇
  国内免费   26篇
各国政治   4830篇
工人农民   3188篇
世界政治   6671篇
外交国际关系   4785篇
法律   40199篇
中国共产党   1048篇
中国政治   3408篇
政治理论   21649篇
综合类   4090篇
  2021年   610篇
  2020年   1459篇
  2019年   1618篇
  2018年   1824篇
  2017年   2201篇
  2016年   2330篇
  2015年   2078篇
  2014年   2433篇
  2013年   11026篇
  2012年   2330篇
  2011年   2770篇
  2010年   2954篇
  2009年   3284篇
  2008年   3054篇
  2007年   3206篇
  2006年   3460篇
  2005年   2984篇
  2004年   2201篇
  2003年   1934篇
  2002年   2138篇
  2001年   2424篇
  2000年   1874篇
  1999年   1579篇
  1998年   1219篇
  1997年   1062篇
  1996年   1034篇
  1995年   1008篇
  1994年   1013篇
  1993年   1027篇
  1992年   1167篇
  1991年   1206篇
  1990年   1148篇
  1989年   1134篇
  1988年   1131篇
  1987年   1127篇
  1986年   1167篇
  1985年   1190篇
  1984年   1078篇
  1983年   1080篇
  1982年   933篇
  1981年   875篇
  1980年   701篇
  1979年   803篇
  1978年   629篇
  1977年   561篇
  1976年   514篇
  1975年   452篇
  1974年   478篇
  1973年   463篇
  1972年   397篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
61.
大治安格局是以指挥中心为龙头,以社区警务建设为基础,以强化社会控制为手段,以公安科技建设为保障,各警种和社会力量广泛参与,采取专群结合,打防结合,动静结合,点线面结合,人防、物防、技防等方式方法,形成集预防、发现、打击犯罪等功能于一体的社会治安防控的大治安格局。  相似文献   
62.
Numerous accounts reveal that congressional leaders often secure “hip‐pocket votes” or “if you need me” pledges from rank‐and‐file legislators. These are essentially options on votes. Leaders exercise sufficient options—pay legislators to convert to favorable votes—when those options will yield victory. Otherwise, they release the options. A model shows that this optimal strategy for leaders produces many small victories, few small losses, and losses that are, on average, larger than victories. We find precisely these patterns, hence strong evidence for vote options, in Congressional Quarterly key votes from 1975 through 2001 and in non‐key votes from the 106th Congress (1999–2000).  相似文献   
63.
This concept paper presents a theory of environmental scarcity developed byHomer-Dixon. Homer-Dixon developed a model to describe the consequences of scarcity for sub-national violence in third world countries. This paper hasfour interrelated purposes. First, it presents the model of scarcity developedby Thomas Homer-Dixon in 1999. Second, it assesses the way in which the scarcity model contextualizes criminal justice and criminology research, andby extension, how research in crime and justice processes can broaden the scarcity model. Third, it applies elements of the model to the United States,a goal that represents a generalization of the model from third-world to first-world settings. Fourth, it presents a particular case, the migrationof African-Americans from the rural South to urban centers in the 1950s and1960s and consequent inner-city violence in the 1960s, that displays manyelements of the environmental scarcity model.  相似文献   
64.
In 1991 the FCC implemented a price cap plan for local exchange carriers' interstate access service designed to deal with the regulatory boundaries problem arising from the breakup of AT&T in 1984. The experience with the price cap plan demonstrates the difficulty of predicting productivity growth accurately and makes clear that regulators cannot depend upon a pure price cap plan to keep prices within a reasonable range of costs. With periodic reviews to readjust plan parameters, however, a price cap plan can maintain the rate-of-return close to the target rate-of-return without diminishing the price cap plan's incentives for efficient production. A simple method of recalculating the X-factor based on the rate-of-return over the previous three years worked well in simulations. If this procedure had been used over the price cap period 1991 to 2000, prices would have been 20 percent lower and expenditures on LECs' telecommunications service subject to a price cap would have been $3.8 billion lower.  相似文献   
65.
The adjustment problems associated with sexual abuse, physical abuse, psychological maltreatment, neglect, and witnessing family violence during childhood were examined in three studies. Study 1 demonstrated significant overlap between maltreatment types in parent reports (N = 50) of maltreatment experiences of their child aged 5–12 years. Parental sexual punitiveness, traditionality, family adaptability and family cohesion significantly predicted scores on 4 maltreatment scales and children's externalizing behavior problems. Level of maltreatment predicted internalizing, externalizing, and sexual behavior problems. In Study 2, significant overlap was found between adults' retrospective reports (N = 138) of all 5 types of maltreating behaviors. Parental sexual punitiveness, traditionality, family adaptability, and family cohesion during childhood predicted the level of maltreatment and current psychopathology. Although child maltreatment scores predicted psychopathology, childhood family variables were better predictors of adjustment. Study 3 demonstrated that child maltreatment scores predicted positive aspects of adult adaptive functioning (N = 95).  相似文献   
66.
This paper considers technology transfer from a holistic perspective, defining and integrating all essential elements. Technology, technology ownership, and technology transfer are defined to enable practical management of the value of technology as an organizational asset. Concepts from value-chain movement of technology in commercial product development are used to develop a complete, detailed vision of technology transfer across corporate boundaries. Lessons enable development of a productive technology-transfer function that will speed evolution of technology to product and enable creation of new wealth.  相似文献   
67.
68.
There is widespread concern that higher education is being compromised by being turned into a ‘commodity’ to be ‘consumed’. This article represents an initial attempt to explore the trends in both the UK and US, and considers how the law has responded to them. It argues, however, that there is an important distinction to be drawn between ‘commodification’ and ‘consumerism’. Education has always been a commodity to be bought and sold; the true danger lies in the move to a ‘rights-based’ culture where students (and politicians) see education merely as something to be ‘consumed’ rather than as an activity in which to participate. Whilst the law seems thus far to have been something of a bulwark against this movement, it remains an open question as to whether this will continue to be the case if HEIs do not themselves act more proactively in challenging this damaging view of higher education.  相似文献   
69.
Weit weg und mittlerweile doch sehr nah liegt die Antarktis, wenn es um Klima- und Umweltschutz geht. Forschung und Tourismus strapazieren den au?ergew?hnlichen Naturraum. Der Beitrag zeigt auf, mit welchen Steuerungsans?tzen Deutschland seinen Verpflichtungen zum Antarktisschutz gerecht werden will. Ausgehend von einigen Informationen über den 6. Kontinent (A.) werden die unterschiedlichen Interessenkonflikte rund um Nutzung und Schutz der Antarktis illustriert (B.). Im Anschluss daran wird der zugeh?rige internationale und nationale Rechtsrahmen kurz vorgestellt (C.), ehe verschiedene Facetten des deutschen Ausführungsgesetzes n?her beleuchtet werden (D.). Flankierend wird neben dem Ordnungsrecht eine gute fachliche Praxis in Form eines Leitfadens als Element nichtrechtlicher Steuerung genutzt (E.). Der Beitrag schlie?t mit Fazit und Ausblick (F.).  相似文献   
70.
构建乡镇政府公共品供给能力的评估指标体系,是科学评估乡镇政府公共品供给能力的前提。本文首先界定乡镇政府公共品供给能力的内涵和构成,然后逐一讨论关于构建我国乡镇政府公共品供给能力评估指标体系的原则、目标、指标体系、评估标准和权重等问题,最后构建一个评估乡镇政府公共品供给能力指标体系的总表。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号