全文获取类型
收费全文 | 12225篇 |
免费 | 371篇 |
专业分类
各国政治 | 573篇 |
工人农民 | 515篇 |
世界政治 | 721篇 |
外交国际关系 | 379篇 |
法律 | 7896篇 |
中国共产党 | 3篇 |
中国政治 | 90篇 |
政治理论 | 2330篇 |
综合类 | 89篇 |
出版年
2020年 | 154篇 |
2019年 | 191篇 |
2018年 | 268篇 |
2017年 | 306篇 |
2016年 | 292篇 |
2015年 | 212篇 |
2014年 | 223篇 |
2013年 | 1223篇 |
2012年 | 307篇 |
2011年 | 322篇 |
2010年 | 261篇 |
2009年 | 287篇 |
2008年 | 350篇 |
2007年 | 295篇 |
2006年 | 350篇 |
2005年 | 308篇 |
2004年 | 308篇 |
2003年 | 282篇 |
2002年 | 296篇 |
2001年 | 428篇 |
2000年 | 380篇 |
1999年 | 284篇 |
1998年 | 153篇 |
1997年 | 163篇 |
1996年 | 142篇 |
1995年 | 146篇 |
1994年 | 137篇 |
1993年 | 162篇 |
1992年 | 254篇 |
1991年 | 275篇 |
1990年 | 246篇 |
1989年 | 238篇 |
1988年 | 237篇 |
1987年 | 250篇 |
1986年 | 267篇 |
1985年 | 266篇 |
1984年 | 238篇 |
1983年 | 236篇 |
1982年 | 133篇 |
1981年 | 123篇 |
1980年 | 97篇 |
1979年 | 138篇 |
1978年 | 106篇 |
1977年 | 97篇 |
1976年 | 76篇 |
1975年 | 89篇 |
1974年 | 104篇 |
1973年 | 95篇 |
1972年 | 87篇 |
1968年 | 84篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
891.
892.
Itiel E. Dror Ph.D. 《Journal of forensic sciences》2020,65(4):1034-1039
Establishing error rates is crucial for knowing how well one is performing, determining whether improvement is needed, measuring whether interventions are effective, as well as for providing transparency. However, the flurry of activities in establishing error rates for the forensic sciences has largely overlooked some fundamental issues that make error rates a problematic construct and limit the ability to obtain a meaningful error rate. These include knowing the ground truth, establishing appropriate databases, determining what counts as an error, characterizing what is an acceptable error rate, ecological validity, and transparency within the adversarial legal system. Without addressing these practical and theoretical challenges, the very notion of a meaningful error rate is limited. 相似文献
893.
Jefferson E. Holcomb Marian R. Williams William D. Hicks Tomislav V. Kovandzic Michele Bisaccia Meitl 《犯罪学与公共政策》2018,17(1):101-127
Research Summary
For several decades, critics have argued that civil forfeiture laws create incentives for law enforcement to increase departmental revenue by “policing for profit.” By using data on federal equitable sharing payments to nearly 600 local law enforcement agencies between 2000 and 2012, we examine the relationship between the characteristics of state forfeiture laws and equitable sharing payments to local agencies. Our results indicate that agencies in states with state laws that are more restrictive or less rewarding to police collect more in federal equitable sharing. This finding supports the critics’ argument that police behavior in regard to forfeiture activities is influenced by the financial rewards and burdens involved.Policy Implications
Our results reveal that the findings of investigative journalism and case study research, that is, that police forfeiture activities are influenced by financial rewards, may be more generalizable to law enforcement than previously thought. Despite recent state‐level reforms, federal equitable sharing and most state forfeiture laws provide limited due process protections and have minimal accountability or reporting requirements. Concerns about the impact of civil forfeiture practices on perceptions of procedural justice and police legitimacy are discussed, and possible policy reforms are reviewed. 相似文献894.
R.N.ANIL 《北京周报(英文版)》2011,54(29):48
<正>My first visit to China was in 1986.After that I have been to this charming country several times and during these visits heard 相似文献
895.
896.
The chemical substances of perspiration found in latent fingerprint residue may hold the key for dating latent fingerprints. To study the chemical transformations of these components as a function of time and environment, fingerprint residues from four males and four females were analysed by thin-layer chromatography (TLC) and high performance liquid chromatography (HPLC). Three major and two or three minor components were detected by both methods and the variation in the quantity of the major components with time was observed. 相似文献
897.
898.
899.
900.