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   18786篇
  免费   588篇
  国内免费   5篇
各国政治   822篇
工人农民   802篇
世界政治   1276篇
外交国际关系   706篇
法律   11564篇
中国共产党   6篇
中国政治   190篇
政治理论   3794篇
综合类   219篇
  2021年   111篇
  2020年   249篇
  2019年   330篇
  2018年   411篇
  2017年   467篇
  2016年   469篇
  2015年   361篇
  2014年   400篇
  2013年   1828篇
  2012年   536篇
  2011年   545篇
  2010年   454篇
  2009年   484篇
  2008年   568篇
  2007年   619篇
  2006年   595篇
  2005年   530篇
  2004年   530篇
  2003年   559篇
  2002年   492篇
  2001年   714篇
  2000年   587篇
  1999年   515篇
  1998年   280篇
  1997年   195篇
  1996年   232篇
  1995年   204篇
  1994年   234篇
  1993年   233篇
  1992年   354篇
  1991年   378篇
  1990年   354篇
  1989年   313篇
  1988年   338篇
  1987年   296篇
  1986年   340篇
  1985年   312篇
  1984年   263篇
  1983年   247篇
  1982年   204篇
  1981年   218篇
  1980年   147篇
  1979年   184篇
  1978年   136篇
  1977年   118篇
  1976年   105篇
  1975年   137篇
  1974年   144篇
  1973年   119篇
  1972年   105篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
Forecasters often disagree on revenue predictions because of differing techniques. Some states, such as Utah, have turned to the use of survey research methods to avoid this dilemma. This article reviews many of the national forecasting models examining consumer sentiment currently in use. And it compares the Utah experience with surveys used in other states.  相似文献   
92.
93.
In this article a practical case is described when gunshot directions and position of a victim's body at the moment of each shot were determined by natural simulation using an LG-78 laser (made in the form of a gun).  相似文献   
94.
Hair analysis has been presented by some authors as a possible tool of investigation for estimating patients' compliance to long-term therapies. This paper summarises the different publications that have been devoted to this topic and highlights the available statistical data presented to support this proposition. Qualitative results of such determinations may be of some interest but due to the enormous interindividual variations of quantitative data, the idea of using hair analysis to ascertain whether a patient has taken his treatment exactly as prescribed, clearly appears to be inapplicable.  相似文献   
95.
BRUCE A. JACOBS 《犯罪学》1993,31(2):281-299
Although studies on drug dealing have examined techniques sellers use to ensure against undercover infiltrations, none has explored the use of such techniques at the interactional level. The objective here is to address this void by exploring the perceptual shorthand dealers use to determine whether buyers in question are undercover. This perceptual shorthand processes one of two types of deception clues in making this judgment: trend discontinuity and interpersonal illegitimacy. Trend discontinuity is associated with police in formants and results from situations in which (I) familiar customers suddenly introduce unfamiliar others who wish to buy drugs and (2) familiar customers suddenly and signifcantly increase quantities they themselves desire to purchase. Interpersonal illegitimacy is associated with undercover agents and results from situations in which unfamiliar buyers emit certain physical and verbal “vibes” believed to be indicative of covert law en forcement personnel. Discussion focuses on the data's presuppositional and microstructural implications for restrictive deterrence (Gibbs, 1975). Data were drawn from semi-structured interviews with 32 semi-institutionalized heroin user-dealers located in a very large western US. city.  相似文献   
96.
Recent scholarship raises two questions about the historical relationship between gender and official responses to criminality. First, to what extent has the formal social control of women changed in the past two centuries? Second, to what extent can changes in the presence of women within the criminal justice system be traced to the same factors that account for the changing presence of men? To address these questions, I focus on women incarcerated for felonies in a southern state (Georgia) between 1870 and 1940. Along with a comparable sample of male offenders, this population forms the basis of a time-series analysis that compares, and seeks to account for, trends in admission rates. The analysis yields little evidence that women disappeared from formal system of punishment. Instead, there were gender similarities in punishment trends and in explanations for those trends. Concluding the paper is a discussion of its implications for further research on gender differences in punishment.  相似文献   
97.
98.
This article explores theoretical and empirical issues in the application of clinical neuropsychological evidence to forensic issues in the criminal law. The nature of forensic neuropsychological evaluations is discussed with reference to issues of competency to stand trial, criminal responsibility, and other competencies in the criminal process. Examples of specific disorders relevant to criminal law standards are presented, together with data estimating the prevalence of brain dysfunction in criminal and forensic populations. Research is also reviewed on the role of neuropsychological brain dysfunction in the etiology of violence and criminally relevant behavior. Finally, empirical and ethical issues concerning the applicability and admissibility of forensic neuropsychological data in the criminal context are discussed.  相似文献   
99.
Using merged administrative data from welfare reform evaluations in three states, we estimate the effects of child care subsidy use on the length of time it takes for a welfare applicant to move into substantial employment. Findings show that the use of a child care subsidy during an unemployed or marginally employed spell of welfare receipt is associated with between a 0.6 and 1.7 quarter (or 11% to 34%) reduction in the time to substantial employment in two of the three state samples. The positive influence of subsidy use on transitions to substantial employment is strongest for those welfare applicants with the lowest earnings who are mixing welfare and work prior to subsidy receipt.  相似文献   
100.
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