全文获取类型
收费全文 | 3550篇 |
免费 | 96篇 |
专业分类
各国政治 | 252篇 |
工人农民 | 134篇 |
世界政治 | 318篇 |
外交国际关系 | 196篇 |
法律 | 1516篇 |
中国政治 | 15篇 |
政治理论 | 1173篇 |
综合类 | 42篇 |
出版年
2021年 | 13篇 |
2020年 | 48篇 |
2019年 | 50篇 |
2018年 | 69篇 |
2017年 | 76篇 |
2016年 | 101篇 |
2015年 | 59篇 |
2014年 | 80篇 |
2013年 | 588篇 |
2012年 | 73篇 |
2011年 | 97篇 |
2010年 | 92篇 |
2009年 | 90篇 |
2008年 | 107篇 |
2007年 | 116篇 |
2006年 | 99篇 |
2005年 | 97篇 |
2004年 | 102篇 |
2003年 | 113篇 |
2002年 | 157篇 |
2001年 | 82篇 |
2000年 | 79篇 |
1999年 | 88篇 |
1998年 | 64篇 |
1997年 | 78篇 |
1996年 | 57篇 |
1995年 | 46篇 |
1994年 | 39篇 |
1993年 | 49篇 |
1992年 | 54篇 |
1991年 | 60篇 |
1990年 | 44篇 |
1989年 | 55篇 |
1988年 | 44篇 |
1987年 | 43篇 |
1986年 | 56篇 |
1985年 | 47篇 |
1984年 | 30篇 |
1983年 | 55篇 |
1982年 | 43篇 |
1981年 | 32篇 |
1980年 | 28篇 |
1979年 | 27篇 |
1978年 | 25篇 |
1977年 | 23篇 |
1976年 | 26篇 |
1975年 | 20篇 |
1974年 | 28篇 |
1972年 | 13篇 |
1971年 | 14篇 |
排序方式: 共有3646条查询结果,搜索用时 31 毫秒
271.
Thali MJ Braun M Markwalder TH Brueschweiler W Zollinger U Malik NJ Yen K Dirnhofer R 《Forensic science international》2003,135(2):115-121
Bite mark identification is based on the individuality of a dentition, which is used to match a bite mark to a suspected perpetrator. This matching is based on a tooth-by-tooth and arch-to-arch comparison utilising parameters of size, shape and alignment. The most common method used to analyse bite mark are carried out in 2D space. That means that the 3D information is preserved only two dimensionally with distortions. This paper presents a new 3D documentation, analysis and visualisation approach based on forensic 3D/CAD supported photogrammetry (FPHG) and the use of a 3D surface scanner. Our photogrammetric approach and the used visualisation method is, to the best to our knowledge, the first 3D approach for bite mark analysis in an actual case. The documentation has no distortion artifacts as can be found with standard photography. All the data are documented with a metric 3D measurement, orientation and subsequent analysis in 3D space. Beside the metrical analysis between bite mark and cast, it is possible using our method to utilise the topographical 3D feature of each individual tooth. This means that the 3D features of the biting surfaces and edges of each teeth are respected which is--as shown in our case--very important especially in the front teeth which have the first contact to the skin. Based upon the 3D detailed representation of the cast with the 3D topographic characteristics of the teeth, the interaction with the 3D documented skin can be visualised and analysed on the computer screen. 相似文献
272.
In a series of three rulings released simultaneously on 15 October 2002, the European Court of Human Rights dismissed complaints that Italy's approach to screening blood donors infringed privacy rights and discriminated against lesbians and gay men. 相似文献
273.
Twiss O Elliott R 《Canadian HIV/AIDS policy & law review / Canadian HIV/AIDS Legal Network》2003,8(2):35-37
Held in Ottawa on 21-22 May 2003, a national summit on "Global Health is a Human Right!" brought together 86 people representing over 60 Canadian civil society groups interested in joint advocacy on realizing the human right to health in developing countries. The summit focused particularly on addressing the global crises of communicable diseases such as HIV/AIDS, tuberculosis, and malaria. 相似文献
274.
275.
276.
277.
278.
279.
280.
This paper places the contemporary study of regionalism in historical context. It argues that the study of regionalism has
occurred in two waves. The first gathered pace as a sub-field of International Relations from the late 1950s and the second
emerged in the context of the globalisation of the late 1980s and the 1990s.
RID="*"
ID="*" This paper, originally presented as a lecture to the Asia Europe Foundation University, 7th Summer School, Barcelona: November 11, 2002, represents an abbreviated and revised version of Shaun Breslin and Richard Higgott
(2000) Studying Regions: Learning from the Old Constructing the New, New Political Economy 5 (3): 333–352. Permission of the Editors of New Political Economy to publish in this form is gratefully acknowledged. The support of the Economic and Social Research Council in the writing
of this paper is also gratefully acknowledged. 相似文献