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   20451篇
  免费   1345篇
各国政治   906篇
工人农民   913篇
世界政治   1451篇
外交国际关系   783篇
法律   13433篇
中国共产党   4篇
中国政治   140篇
政治理论   4036篇
综合类   130篇
  2023年   89篇
  2021年   113篇
  2020年   466篇
  2019年   501篇
  2018年   651篇
  2017年   672篇
  2016年   756篇
  2015年   566篇
  2014年   614篇
  2013年   2352篇
  2012年   548篇
  2011年   595篇
  2010年   615篇
  2009年   644篇
  2008年   599篇
  2007年   580篇
  2006年   613篇
  2005年   536篇
  2004年   526篇
  2003年   435篇
  2002年   504篇
  2001年   743篇
  2000年   676篇
  1999年   536篇
  1998年   294篇
  1997年   220篇
  1996年   225篇
  1995年   233篇
  1994年   219篇
  1993年   217篇
  1992年   339篇
  1991年   355篇
  1990年   326篇
  1989年   316篇
  1988年   329篇
  1987年   296篇
  1986年   348篇
  1985年   353篇
  1984年   274篇
  1983年   263篇
  1982年   212篇
  1981年   199篇
  1980年   176篇
  1979年   253篇
  1978年   147篇
  1977年   106篇
  1976年   104篇
  1975年   109篇
  1974年   139篇
  1973年   94篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
891.
We investigate the role of payoff asymmetry in laboratory prisoner’s dilemma games. Symmetric and asymmetric games are examined in simultaneous and sequential settings. In the asymmetric sequential games, we study the impact of having payoff advantaged players moving either first or second. Asymmetry reduces the rates of cooperation in simultaneous games. In sequential games, asymmetry interacts with order of play such that the rate of cooperation is highest when payoff disadvantaged players move first.  相似文献   
892.
A minimax procedure for electing committees   总被引:1,自引:0,他引:1  
A new voting procedure for electing committees, called the minimax procedure, is described. Based on approval balloting, it chooses the committee that minimizes the maximum Hamming distance to voters’ ballots, where these ballots are weighted by their proximity to other voters’ ballots. This minimax outcome may be diametrically opposed to the outcome obtained by aggregating approval votes in the usual manner, which minimizes the sum of the Hamming distances and is called the minisum outcome. The manipulability of these procedures, and their applicability when election outcomes are restricted in various ways, are also investigated. The minimax procedure is applied to the 2003 Game Theory Society election of a council of 12 new members from a list of 24 candidates. By rendering outlying voters less influential and not antagonizing any voters too much, it arguably would have produced a committee more representative of the interests of all voters than the minisum committee that was elected.  相似文献   
893.
894.
Almost all legislators are subordinate to party leadership within their assemblies. Institutional factors shape whether, and to what degree, legislators are also subject to pressure from other principals whose demands may conflict with those of party leaders. This article presents a set of hypotheses on the nature of competing pressures driven by formal political institutions and tests the hypotheses against a new dataset of legislative votes from across 19 different countries. Voting unity is lower where legislators are elected under rules that provide for intraparty competition than where party lists are closed, marginally lower in federal than unitary systems, and the effects on party unity of being in government differ in parliamentary versus presidential systems. In the former, governing parties are more unified than the opposition, win more, and suffer fewer losses due to disunity. In systems with elected presidents, governing parties experience no such boosts in floor unity, and their legislative losses are more apt to result from cross-voting.  相似文献   
895.
This essay addresses four questions by comparing the management capacities and challenges of congregations, faith‐based organizations, and secular organizations that provide human services: (1) What role, if any, do congregations and faith‐based organizations currently play in the social service delivery system? (2) Are congregations interested in changing their role in the social service delivery system? (3) Compared to faith‐based and secular organizations, do congregations have the capacity to adapt to new roles in the social service delivery system? Finally, (4) compared to faith‐based and secular organizations, do congregations have similar service capacities and management challenges? The findings indicate that although more than half of congregations already provide some type of health or human services, they provide a narrower range of services, consider these services a lower priority, and seem to encounter more extensive management challenges than faith‐based and secular organizations.  相似文献   
896.
A key to the success of public organizations is their ability to identify and build capacity, particularly their distinctive competencies, in order to produce the greatest value for key stakeholders. This article grounds this proposition in the resource-based view of organizations and presents a method for identifying and making use of distinctive competencies in the form of a "livelihood scheme"—a business model appropriate for the public sector—that links distinctive competencies to organizational aspirations and goals. The case of a major public sector training and consultancy unit that is part of the United Kingdom's National Health Service is used as illustration. A number of conclusions are offered in the form of a set of propositions tied to the resource-based view and related research issues. The results contribute to both public strategic management theory and practice.  相似文献   
897.
This article proposes a new instrument for the assessment of the concept quality of democracy indices. We evaluate six famous democracy measurement datasets along our instrument’s requirements and show that the indices perform quite differently: The Index on Defect Democracy receives the best scores, whereas the Freedom House Index gets the worst. In addition, we provide some new insights as to general weaknesses of democracy measurement.  相似文献   
898.
899.
900.
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