全文获取类型
收费全文 | 17842篇 |
免费 | 728篇 |
专业分类
各国政治 | 835篇 |
工人农民 | 579篇 |
世界政治 | 1374篇 |
外交国际关系 | 641篇 |
法律 | 11489篇 |
中国共产党 | 2篇 |
中国政治 | 70篇 |
政治理论 | 3448篇 |
综合类 | 132篇 |
出版年
2021年 | 111篇 |
2020年 | 278篇 |
2019年 | 345篇 |
2018年 | 401篇 |
2017年 | 468篇 |
2016年 | 482篇 |
2015年 | 375篇 |
2014年 | 423篇 |
2013年 | 1843篇 |
2012年 | 447篇 |
2011年 | 508篇 |
2010年 | 441篇 |
2009年 | 451篇 |
2008年 | 470篇 |
2007年 | 432篇 |
2006年 | 466篇 |
2005年 | 396篇 |
2004年 | 413篇 |
2003年 | 395篇 |
2002年 | 392篇 |
2001年 | 723篇 |
2000年 | 673篇 |
1999年 | 491篇 |
1998年 | 263篇 |
1997年 | 251篇 |
1996年 | 201篇 |
1995年 | 196篇 |
1994年 | 240篇 |
1993年 | 215篇 |
1992年 | 340篇 |
1991年 | 379篇 |
1990年 | 340篇 |
1989年 | 362篇 |
1988年 | 340篇 |
1987年 | 316篇 |
1986年 | 376篇 |
1985年 | 321篇 |
1984年 | 279篇 |
1983年 | 294篇 |
1982年 | 186篇 |
1981年 | 189篇 |
1980年 | 140篇 |
1979年 | 223篇 |
1978年 | 136篇 |
1977年 | 129篇 |
1976年 | 118篇 |
1974年 | 143篇 |
1973年 | 142篇 |
1972年 | 126篇 |
1971年 | 103篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
ROBERT S. SUMMERS 《Ratio juris》2005,18(2):129-143
Abstract. The four theses of this paper are: (1) that an appropriate organizational form is used to design, define, and organize a functional unit of a legal system, (2) that the functional units of a legal system, contrary to the emphasis in Hart and Kelsen, consist of far more than rules, and include institutions, interpretive and other methodologies, sanctions and remedies, and more, (3) that frontal and systematic study of the forms of these units is a major avenue for advancing understanding of them as duly organized wholes, and, (4) that such study reveals that much credit is due these forms, along with complementary material or other components of the units, for values realized through law. 相似文献
112.
113.
114.
G A Grigor'ev V A Lopatin V I Makarov A L Fedorovtsev 《Sudebno-meditsinskaia ekspertiza》1990,33(1):17-18
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
115.
This study used data from 299 police officers from 12 municipal police departments across the state of Virginia to determine
the relationship between education and police performance. Performance was measured by supervisor evaluations of each officer's
overall performance, communication skills, public relations skills, report writing skills, response to new training, decision
making ability, and commitment to the police department. Significant correlations were found between education and most measures
of performance. Most importantly, the results show a significant correlation between overall performance and education (r=24,
p.<001). The only variables not proving to be significantly related to education were objective measures of the volume of
arrests, number of times the officer required discipline, and number of accidents. Interestingly, the benefits of a college
education do not become apparent until police officers gain experience. In addition, police, officers with only a high school
diploma decreased in overall performance after five years of experience. 相似文献
116.
117.
118.
ROBERT S. GABLE 《Law & policy》1992,14(4):257-276
Congress and the Drug Enforcement Administration have assigned certain psychoactive substances to one of five schedules, based on assumed or demonstrated abuse potential. Although formidable difficulties exist in assessing the hazards of drug use, some of these assignments do not appear consistent with empirical estimates. This mismatch of assignment and abuse potential -possibly due to "radical" political ideology - obscures significant differences in drug effects, and therefore stifles meaningful public participation in evaluating the benefits, risks, and proper use (if any) of available psychoactive substances. 相似文献
119.
120.
John Kerbs Ph.D. Kyubeom Choi Ph.D. Stephen Rollin Ed.D. Robert Gutierrez Ed.D. Isabelle Potts J.D. Jayme Harpring Ph.D. Alia H. Creason Ph.D. Tam Dao M.S. 《American Journal of Criminal Justice》2005,30(1):121-141
Although past research has developed scales for the incidence, prevalence, and fear of student-on-student victimization (SSV),
little is known about the scaling of perceived risk (i.e., the cognitive appraisal of the chances of experiencing SSV). Hence,
this study examined self-report survey data for the perceived risk of SSV as measured in the Adolescent Index for School Safety
(AISS). Children in grades 7 through 10 (n=337) in a single Florida public school completed the AISS. Factor analyses using
Maximum Likelihood Estimation with Oblimin Rotation identified nine unique factors for perceived risk. Reliability analyses
found standardized Cronbach Alphas that ranged from .64 to .91, and seven out of the nine identified scales were above .80,
which suggested good to excellent internal consistency. Future research should examine the content validity, construct validity,
and predictive validity for the AISS and other self-report surveys of SSV dynamics.
This publication was made possible by a grant [#97-MU-FX-KO12 (S-l)] from the Office of Juvenile Justice and Delinquency Prevention
(O.J.J.D.P.), United States Department of Justice (U.S.D.O.J.). This grant is administered through the Hamilton Fish National
Institute on School and Community Violence at George Washington University. This specific study was developed and implemented
by staff at: 1) East Carolina University’s Department of Criminal Justice; and 2) Florida State University’s Center for Educational
Research and Policy Studies. All points of view and opinions in this paper are those of the authors and do not necessarily
represent the official position or policies of East Carolina University, Florida State University, the Hamilton Fish National
Institute on School and Community Violence, the O.J.J.D.P., or the U.S.D.OJ. The authors would also like to thank Dr. Bill
Doerner and Jennifer Jolley for their support, editorial feedback, and insightful comments regarding earlier drafts of this
paper. 相似文献