全文获取类型
收费全文 | 831篇 |
免费 | 27篇 |
专业分类
各国政治 | 30篇 |
工人农民 | 16篇 |
世界政治 | 76篇 |
外交国际关系 | 60篇 |
法律 | 327篇 |
中国政治 | 1篇 |
政治理论 | 303篇 |
综合类 | 45篇 |
出版年
2020年 | 17篇 |
2019年 | 6篇 |
2018年 | 7篇 |
2017年 | 14篇 |
2016年 | 14篇 |
2015年 | 12篇 |
2014年 | 17篇 |
2013年 | 131篇 |
2012年 | 25篇 |
2011年 | 14篇 |
2010年 | 15篇 |
2009年 | 22篇 |
2008年 | 33篇 |
2007年 | 25篇 |
2006年 | 27篇 |
2005年 | 28篇 |
2004年 | 23篇 |
2003年 | 20篇 |
2002年 | 27篇 |
2001年 | 15篇 |
2000年 | 14篇 |
1999年 | 13篇 |
1998年 | 23篇 |
1997年 | 16篇 |
1996年 | 14篇 |
1995年 | 16篇 |
1994年 | 9篇 |
1993年 | 14篇 |
1992年 | 11篇 |
1991年 | 6篇 |
1990年 | 16篇 |
1989年 | 16篇 |
1988年 | 19篇 |
1987年 | 17篇 |
1986年 | 9篇 |
1985年 | 15篇 |
1984年 | 14篇 |
1983年 | 18篇 |
1982年 | 13篇 |
1981年 | 9篇 |
1980年 | 10篇 |
1978年 | 6篇 |
1977年 | 8篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 5篇 |
1973年 | 6篇 |
1972年 | 6篇 |
1971年 | 4篇 |
1967年 | 3篇 |
排序方式: 共有858条查询结果,搜索用时 15 毫秒
811.
812.
813.
814.
Donald G. Boudreau 《Diplomacy & Statecraft》1998,9(1):24-52
This article proposes the establishment by the UN Security Council of a system of mutual support for third states whose economies have been adversely affected as a result of UN non-military sanctions. This system consists of several components: (1) creating new markets for the sale of goods and services of third states; (2) crafting of a logical UN sanctions costs methodology; (3) bringing into UN Security Council for a those bilateral and regional efforts involving cases of UN sanctions compensation; (4) devising norms and procedures for acquiring and pooling of the requisite funds out of which states' claims for damages attributable to UN sanctions might be satisfied; and (5) establishing a mechanism for the adjudication of such claims. While many obstacles admittedly exist to creating such a system of mutual support, the article argues that effective UN sanctions burden sharing is nevertheless important to international relations theory and practice, since UN sanctions appear to be increasing in frequency as they undergird many of the Security Council's contemporary enforcement actions. 相似文献
815.
816.
Comparing Experimental and Matching Methods Using a Large-Scale Voter Mobilization Experiment 总被引:1,自引:0,他引:1
817.
Using data from the General Social Surveys, this article examines the subculture of violence thesis as it relates to three ethnic groups—blacks, Hispanics, and American Indians. The data suggest that blacks and American Indians have had more violence experiences (hitting and firearms) than have the general population. Contrary to what would be predicted from the thesis, the data indicate that blacks and Hispanics had lower tolerance of violence than the general population. Only American Indians, on all factors considered, appeared to support the thesis. Even this support, however, took on less significance when regression results were examined. Demographic and residential variables explained more of the variance in violence tolerance and experiences with violence than did ethnic background. These findings suggest that the influence of ethnicity on the subculture of violence is minor and indirect. 相似文献
818.
A simple, rapid method using restriction fragment length polymorphisms (RFLPs) within the internal transcribed spacer (ITS) regions of the ribosomal DNA gene repeat allows identification of insects and other organisms. We used the method to identify the morphologically similar Diptera larvae that are important in forensic entomology for estimating the time and location of death. Polymerase chain reaction (PCR) was used to amplify a region from the 18S to the 28S rRNA genes. The ITS1 and ITS2 regions provided variation between species and homogeneity within species, with the exception of Cochliomya macellaria. Combinations of the restriction enzymes DdeI, HinfI and Sau3AI provided diagnostic bands for identification of the ten species from three families of Diptera (Calliphoridae, Muscidae and Sarcophagidae). 相似文献
819.
820.
Controversy exists in the literature and society regarding what motivates serial sexual killers to commit their crimes. Hypotheses range from the seeking of sexual gratification to the achievement of power and control to the expression of anger. The authors provide theoretical, empirical, evolutionary, and physiological support for the argument that serial sexual murderers above all commit their crimes in pursuit of sadistic pleasure. The seeking of power and control over victims is believed to serve the two secondary purposes of heightening sexual arousal and ensuring victim presence for the crime. Anger is not considered a key component of these offenders' motivation due to its inhibitory physiological effect on sexual functioning. On the contrary, criminal investigations into serial sexual killings consistently reveal erotically charged crimes, with sexual motivation expressed either overtly or symbolically. Although anger may be correlated with serial sexual homicide offenders, as it is with criminal offenders in general, it is not causative. The authors further believe serial sexual murderers should be considered sex offenders. A significant proportion of them appear to have paraphilic disorders within the spectrum of sexual sadism. "sexual sadism, homicidal type" is proposed as a diagnostic subtype of sexual sadism applicable to many of these offenders, and a suggested modification of DSM criteria is presented. 相似文献