全文获取类型
收费全文 | 6033篇 |
免费 | 191篇 |
专业分类
各国政治 | 477篇 |
工人农民 | 162篇 |
世界政治 | 650篇 |
外交国际关系 | 384篇 |
法律 | 2524篇 |
中国政治 | 35篇 |
政治理论 | 1917篇 |
综合类 | 75篇 |
出版年
2023年 | 27篇 |
2020年 | 76篇 |
2019年 | 105篇 |
2018年 | 140篇 |
2017年 | 165篇 |
2016年 | 166篇 |
2015年 | 121篇 |
2014年 | 157篇 |
2013年 | 965篇 |
2012年 | 158篇 |
2011年 | 174篇 |
2010年 | 149篇 |
2009年 | 148篇 |
2008年 | 193篇 |
2007年 | 261篇 |
2006年 | 199篇 |
2005年 | 183篇 |
2004年 | 200篇 |
2003年 | 199篇 |
2002年 | 187篇 |
2001年 | 108篇 |
2000年 | 114篇 |
1999年 | 99篇 |
1998年 | 126篇 |
1997年 | 104篇 |
1996年 | 110篇 |
1995年 | 84篇 |
1994年 | 76篇 |
1993年 | 91篇 |
1992年 | 73篇 |
1991年 | 91篇 |
1990年 | 77篇 |
1989年 | 69篇 |
1988年 | 77篇 |
1987年 | 88篇 |
1986年 | 87篇 |
1985年 | 53篇 |
1984年 | 72篇 |
1983年 | 71篇 |
1982年 | 67篇 |
1981年 | 54篇 |
1980年 | 48篇 |
1979年 | 45篇 |
1978年 | 44篇 |
1977年 | 47篇 |
1976年 | 27篇 |
1975年 | 26篇 |
1974年 | 28篇 |
1973年 | 34篇 |
1972年 | 24篇 |
排序方式: 共有6224条查询结果,搜索用时 15 毫秒
991.
John D. Jackson 《Journal of law and society》2019,46(Z1):S115-S135
This article charts how security‐cleared counsel have been constructed as a mechanism for managing the tension between security and fairness in secret trials and transferred across national boundaries as an example of ‘best practice', before going on to evaluate recent cross‐cultural and transnational research on this ‘best practice'. Particular attention is paid to the central role played by the European Court of Human Rights (ECtHR) in promoting the role of ‘special advocates’ and a contrast is made between the methodologies deployed by the Court and those used in recent research to identify and problematize ‘best practice’ within the closed world of security‐cleared counsel. The article then goes on to explore the relationship between ‘best practice’ and procedural tradition and argues that normative solutions advancing ‘best practice’ need to pay careful attention to the procedural contexts and cultures in which they are embedded. 相似文献
992.
993.
John M. MacDonald 《Justice Quarterly》2019,36(4):656-681
The current study builds on prior research examining racial disparities in sentencing. Entropy weighting is introduced as a new method for estimating racial disparities that has several advantages over traditionally used methods. Entropy weighting is compared to regression and propensity score methods in estimating Black-White disparities in incarceration sentences. Although all methods find non-significant racial disparities in incarceration sentences, regression and propensity score methods underestimate disparities in incarceration sentence lengths. Entropy weighting provides comparable estimates to propensity score methods, but assures that the samples are identical on all covariates aside from race. The method offers researchers a useful and flexible approach for estimating racial disparities in criminal justice, and its use may lead to alternative conclusions about the size and presence of racial disparities in sentencing. 相似文献
994.
Recently, a sample containing cyclopropylfentanyl was analyzed at this laboratory. Cyclopropylfentanyl began to appear in the United States' illicit drug markets in 2017. Unfortunately, cyclopropylfentanyl presents an analytical challenge due to its mass spectrum being almost identical to that of crotonylfentanyl. There are two possible isomers of crotonylfentanyl, Z- and E- crotonylfentanyl. In order to provide sufficient analytical data to distinguish the two isomers of crotonylfentanyl and cyclopropylfentanyl, crotonylfentanyl was synthesized and fully characterized. Each isomer was analyzed via nuclear magnetic resonance spectroscopy, gas chromatography–mass spectrometry, and Fourier transform infrared spectroscopy. During the synthesis of crotonylfentanyl, an unknown compound was formed. The identification of this compound and the analytical characterization of the two isomers of crotonylfentanyl are presented. Through the comparison of these compounds, it was confirmed that cyclopropylfentanyl can be differentiated from crotonylfentanyl. 相似文献
995.
This article explores and shares the learning from two of Cafcass’ innovative dispute resolution pilot programs. The programs aim to improve outcomes for families against the backdrop of rising private law demand in England, while keeping the child at the center. The Positive co‐Parenting Programme pilot provides a structured intervention to reduce conflict and promote timely resolution for children and families in complex cases. The Support with Making Child Arrangements pilot explores whether the provision of a package of support to parents ahead of the first court hearing can help them come to safe agreements about their children without the need for court intervention. 相似文献
996.
997.
998.
999.
1000.
The Effectiveness of Trace DNA Profiling—A Comparison Between a U.S. and a U.K. Law Enforcement Jurisdiction 下载免费PDF全文
John W. Bond O.B.E. D.Phil. Jocelyn R. Weart O.B.E. D.Phil. 《Journal of forensic sciences》2017,62(3):753-760
Recovery, profiling, and speculative searching of trace DNA (not attributable to a body fluid/cell type) over a twelve‐month period in a U.S. Crime Laboratory and U.K. police force are compared. Results show greater numbers of U.S. firearm‐related items submitted for analysis compared with the U.K., where greatest numbers were submitted from burglary or vehicle offenses. U.S. multiple recovery techniques (double swabbing) occurred mainly during laboratory examination, whereas the majority of U.K. multiple recovery techniques occurred at the scene. No statistical difference was observed for useful profiles from single or multiple recovery. Database loading of interpretable profiles was most successful for U.K. items related to burglary or vehicle offenses. Database associations (matches) represented 7.0% of all U.S. items and 13.1% of all U.K. items. The U.K. strategy for burglary and vehicle examination demonstrated that careful selection of both items and sampling techniques is crucial to obtaining the observed results. 相似文献