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   820篇
  免费   26篇
各国政治   20篇
工人农民   19篇
世界政治   73篇
外交国际关系   51篇
法律   339篇
中国政治   1篇
政治理论   299篇
综合类   44篇
  2024年   11篇
  2023年   38篇
  2021年   10篇
  2020年   16篇
  2019年   5篇
  2018年   8篇
  2017年   16篇
  2016年   17篇
  2015年   11篇
  2014年   14篇
  2013年   123篇
  2012年   22篇
  2011年   12篇
  2010年   13篇
  2009年   19篇
  2008年   26篇
  2007年   23篇
  2006年   25篇
  2005年   25篇
  2004年   23篇
  2003年   18篇
  2002年   24篇
  2001年   11篇
  2000年   13篇
  1999年   11篇
  1998年   22篇
  1997年   14篇
  1996年   14篇
  1995年   14篇
  1994年   9篇
  1993年   12篇
  1992年   10篇
  1991年   6篇
  1990年   15篇
  1989年   16篇
  1988年   17篇
  1987年   16篇
  1986年   9篇
  1985年   14篇
  1984年   13篇
  1983年   17篇
  1982年   12篇
  1981年   9篇
  1980年   10篇
  1977年   6篇
  1976年   5篇
  1975年   7篇
  1974年   4篇
  1973年   7篇
  1972年   6篇
排序方式: 共有846条查询结果,搜索用时 15 毫秒
831.
Research began when the author realized that Antony Sutton had misidentified the author of a key document published in his Wall Street and the Bolshevik Revolution (1974). This article reports on the interception by federal agents of the document (a letter) brought from the Copenhagen office of Soviet diplomat Maxim Litvinov and intended for Kenneth Durant who was employed by Ludwig Martens, Lenin's unrecognized representative in New York City. Analysis of the letter revealed the true author and opened a research channel for learning more about the backgrounds of three Soviet agents: Bornett Bobroff, Nora Hellgren, and Wilfred Humphries.  相似文献   
832.
Arbitrage is a key process in the practice of financial markets and in their theoretical depiction: it allows markets to be posited as efficient without all investors being assumed to be rational. This article explores the sociology of arbitrage by means of an examination of the arbitrageurs, Long-Term Capital Management (LTCM). LTCM's 1998 crisis is analysed using both qualitative, interview-based data and quantitative examination of price movements. It is suggested that the roots of the crisis lay in an unstable pattern of imitation that had developed in the markets within which LTCM operated. As the resulting 'superportfolio' began to unravel, arbitrageurs other than LTCM fled the market, even as arbitrage opportunities became more attractive, causing huge price movements against LTCM. Three features of the sociology of arbitrage are discussed: its conduct by people often personally known to each other; the possibility and consequences of imitation; and the limits on the capacity of arbitrage to close price discrepancies. It is suggested that by 1998 imitative arbitrage formed a 'global microstructure' in the sense of Knorr Cetina and Bruegger.  相似文献   
833.
Families might be an important source of norms that legitimize terrorism, an assumption that has yet to be tested empirically. To investigate this, surveys were administered to 20 immediate relatives of 16 Jema’ah Islamiyah (JI) members in Indonesia. Family members were found to agree with their kin's involvement in the violent activities of JI, and perceived their community as being supportive. Agreement with their relative's involvement in JI was predicted by anti-Western sentiment, not support for violent jihad. Kinship to a suicide bomber predicted less support for their family member's involvement in JI. Implications for deradicalization strategies are discussed.  相似文献   
834.
Political observers have extensively documented the national media's focus on committee and party leaders. Legislators' local coverage, in contrast, remains largely unexplored and unexplained. This article examines 40 local newspapers to explore how these factors may influence legislators' local newspaper coverage. We find that local newspapers do not provide more coverage to congressional leaders and that independent papers write more frequently than chain-owned competitors about the local House delegation. Additionally, the extent to which a legislator's district geographically overlaps with the newspaper's market has a strong effect on legislators' mentions.  相似文献   
835.
Field experimentation is a promising but seldom used method for studying the effects of media messages on political attitudes and behavior. The practical challenges of conducting media experiments in real-world settings often come down to securing cooperation from research partners, such as political campaigns. To do so, researchers must be prepared to adapt their experimental designs to satisfy the constraints imposed by research partners and the media environment in which they operate. This article provides an overview of some alternative field experimental designs that allow researchers to maintain the advantages of random assignment while addressing practical considerations. Examples are drawn from the growing field experimental literature examining the effects of television, radio, and online communication.  相似文献   
836.
Abstract

In the absence of physical evidence, investigators must often rely on offence behaviours when determining whether several crimes are linked to a common offender. A variety of factors can potentially influence the degree to which accurate linking is possible, including the similarity coefficient used to assess across-crime similarity. The current study examines the performance of two similarity coefficients that have recently been compared to one another, Jaccard's coefficient (J) and the taxonomic similarity index (Δs), using samples of two crime types, serial homicide (N=237) and serial burglary (N=210). In contrast to previous research, the results indicate that Δs does not significantly outperform J with respect to linking accuracy. In addition, both coefficients lead to higher levels of linking accuracy in cases of serial homicide compared to serial burglary. Potential explanations for these findings are presented and their implications are discussed.  相似文献   
837.
The California courts have a reputation for sustaining local land-use controls where no other state court would do so. The reputation was certainly deserved prior to 1966, when courts still presumed that necessary findings to support a variance had been made and that the findings were properly supported. Prior to that time no appellate court had ever reversed the grant of a variance. This was changed, however, by Cow Hollow Improvement Club v. Dibene, 245 Cal. App. 2d 160;53 Cal Rptr. 610 (1966) and Broadway, Laguna, Vallejo Assoc. v. Board of Permit Appeals, 66 Cal.2d 767, 59 Cal. Rptr. 146,427 P.2d 810 (1967). Thereafter, where the ordinance required specific findings, findings on each of the standards for a variance had to be made and each had to be supported by substantial evidence. This standard was extended to the granting of conditional use permits and other major work of the zoning board of appeals in Stoddard v. Edelman, 4 Cal. App. 3d 544, 84 Cal. Rptr. 443 (1970). Cautious attorneys who recommended that such standards be applied even if not specified in the ordinance were also vindicated recently by Topanga Assoc. for a Scenic Community v. Los Angeles, 113 Cal.Rptr. 836 (1974).  相似文献   
838.
“Judicial Decisions” are abstracts of federal and state court decisions addressing issues of importance to the land use lawyer and planner, such as zoning, inverse condemnation, growth management, signs and billboards, vested rights, and many more.  相似文献   
839.
Field experiments and regression discontinuity designs test whether voting is habit forming by examining whether a random shock to turnout in one election affects participation in subsequent elections. We contribute to this literature by offering a vast amount of new statistical evidence on the long‐term consequences of random and quasi‐random inducements to vote. The behavior of millions of voters confirms the persistence of voter turnout and calls attention to theoretically meaningful nuances in the development and expression of voting habits. We suggest that individuals become habituated to voting in particular types of elections. The degree of persistence appears to vary by electoral context and by the attributes of those who comply with an initial inducement to vote.  相似文献   
840.
Journal of Youth and Adolescence - Transition to adulthood can be a challenging developmental task for adolescents with common mental health problems and is linked to adverse outcomes such as...  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