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   68937篇
  免费   3312篇
各国政治   4521篇
工人农民   2879篇
世界政治   6016篇
外交国际关系   3865篇
法律   32331篇
中国共产党   12篇
中国政治   758篇
政治理论   20901篇
综合类   966篇
  2021年   411篇
  2020年   1172篇
  2019年   1541篇
  2018年   1684篇
  2017年   2007篇
  2016年   2192篇
  2015年   1839篇
  2014年   2120篇
  2013年   10656篇
  2012年   1658篇
  2011年   1772篇
  2010年   1842篇
  2009年   2100篇
  2008年   1787篇
  2007年   1764篇
  2006年   1929篇
  2005年   1822篇
  2004年   1720篇
  2003年   1508篇
  2002年   1565篇
  2001年   1472篇
  2000年   1322篇
  1999年   1172篇
  1998年   1117篇
  1997年   997篇
  1996年   974篇
  1995年   924篇
  1994年   927篇
  1993年   955篇
  1992年   969篇
  1991年   1005篇
  1990年   933篇
  1989年   976篇
  1988年   964篇
  1987年   997篇
  1986年   955篇
  1985年   1031篇
  1984年   934篇
  1983年   989篇
  1982年   887篇
  1981年   838篇
  1980年   655篇
  1979年   685篇
  1978年   592篇
  1977年   536篇
  1976年   488篇
  1975年   413篇
  1974年   414篇
  1973年   435篇
  1972年   378篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
851.
This paper highlights the difficulties and complexities of development assistance projects through an analysis of 2 Urban Functions in Rural Development projects conducted by the US Agency for International Development (AID) in Upper Volta and northern Cameroon in 1977-82. The general objectives of the Upper Volta project were to carry out urban function studies, develop a plan for strengthening the contributions of urban centers to rural development, develop a list of investment priorities for facilities and services, and increase the capacities of the Ministry in planning processes and methods. The 2-year project was hindered by a 1-year delay in initiating assistance due to difficulties in locating a contractor. In addition, the contractor and other team members felt there was little justification for studies of spatial organization in a country with so much evident need; rather, they focused on a small rural works program and establishment of effective local government, producing an inconsistency between team activities and the original project agreement. A request by the team to extend the project 1 year beyond its official completion date to compensate for early delays was rejected by USAID. Nonetheless, there was agreement that the project had a small positive impact in Upper Volta. Key lessons from Upper Volta were transferred to the Cameroon project. Although this project was judged to have achieved its objective of preparing a regional plan and of identifying programs for facilities, services, and small-scale enterprises, it was beset by problems of inexperience and technical underqualification of team members, poor communication, inconsistency of USAID guidelines, and methodological confusion. It is suggested that a central challenge for such programs is to create a body of qualified Americans who can work with their local counterparts in meeting the challenges of development. A measure of the success or failure of these projects should be the degree to which learning contributes to improved performance.  相似文献   
852.
853.
The issue of whether civilly committed patients should be extended the right to accept or refuse treatment has generated much controversy and litigation during the past 15 years. In general, the current rule is that in nonemergency situations, individuals who are competent to give informed consent to treatment should be extended the right to refuse it. Obviously, the manner in which this rule is implemented partly depends on how competence to consent to treatment is defined and measured. Most researchers have implicitly assumed that an understanding of treatment information is the sole criterion of competence. It is argued that such a definition may be incomplete and is in need of reexamination. Following a review and analysis of the relevant legal and psychological literature, a comprehensive construct of competency to consent to treatment is proposed and future directions for research are discussed.  相似文献   
854.
855.
856.
857.
A split-ballot experiment shows that, when people are asked how interested they are in following political campaigns, their response depends not only on the order in which the question is asked, but also on the broader electoral context in which it is posed. When asked how interested they were in following the political campaigns immediatelyafter a question about whether or not they voted in the (1982) election, people were more likely to think they were interested in the campaign, especially if they claimed to have voted, than if they were asked about it immediatelybefore the question on whether or not they voted. This order effect, however, appears to depend onwhen the questions are asked. If asked within a few weeks after the election, there is little or no order effect. But later, as the memory of the campaign fades, the order of the questions makes a sizable difference in the results. This order effect also seems to be more pronounced among better-educated respondents, suggesting that they are more likely to feel pressured by a social norm to vote and to express an interest in political affairs, not only in real life, but in the survey interview as well. The paper concludes with a brief discussion of the implications for the design of the interview schedule used in the American National Election Studies.The research reported in this paper was supported by a grant from the National Science Foundation (SES81-11404).  相似文献   
858.
One assumption of Key's reward-punishment theory that has attracted comparatively little attention is that voters hold the incumbent party responsible for all manner of economic fluctuations. A brief review of the survey literature in economic voting indicates that this assumption is in need of revision. The handful of existing studies in political science on responsibility attribution suffers from a lack of conceptual clarity and a failure to develop a theory of the attribution process. This paper outlines a model of economic voting in which people act as intuitive jurors using various decision rules to evaluate the evidence surrounding the president's responsibility for national economic problems. The generalizability of the framework and directions for future research are discussed  相似文献   
859.
Defining risk   总被引:6,自引:0,他引:6  
Risk is the focal topic in the management of many activities and technologies. For that management to be successful, an explicit and accepted definition of the term risk is essential. Creation of that definition is a political act, expressing the definers' values regarding the relative importance of different possible adverse consequences for a particular decision. Those values, and with them the definition of risk, can change with changes in the decisionmaker, the technologies considered, or the decision problem. After a review of the sources of controversy in defining risk, a general framework is developed, showing how these value issues can be systematically addressed. As an example, the approach is applied to characterizing the risks of six competing energy technologies, the relative riskeness of which depends upon the particular definition used.  相似文献   
860.
This article analyzes the enforcement practices of the Investment Industry Regulatory Organization of Canada (IIROC) and compares them with its predecessor, the Investment Dealers Association of Canada (IDA). The study collected data from IIROC's tribunal cases decided between June 2008 and December 2019 and compared them with data on the IDA's enforcement of complaints from 1984 to 2008. The findings reveal no statistically significant difference in the fines imposed by the two regulatory bodies. Furthermore, IIROC has refrained from issuing lenient penalties such as retaking examinations/courses or mandating terms and conditions for offenders. The results also indicate no significant impact on the number or distribution of offense types committed in the industry over time. Most notably, the Ontario Securities Commission, the Canadian Securities Regulators, and the new Self-Regulatory Organization of Canada should consider these findings when formulating policies concerning the role of self-regulation in the financial markets.  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