全文获取类型
收费全文 | 1855篇 |
免费 | 116篇 |
专业分类
各国政治 | 164篇 |
工人农民 | 117篇 |
世界政治 | 222篇 |
外交国际关系 | 139篇 |
法律 | 987篇 |
中国政治 | 5篇 |
政治理论 | 323篇 |
综合类 | 14篇 |
出版年
2023年 | 24篇 |
2022年 | 16篇 |
2021年 | 34篇 |
2020年 | 60篇 |
2019年 | 85篇 |
2018年 | 112篇 |
2017年 | 129篇 |
2016年 | 125篇 |
2015年 | 81篇 |
2014年 | 118篇 |
2013年 | 327篇 |
2012年 | 99篇 |
2011年 | 81篇 |
2010年 | 51篇 |
2009年 | 39篇 |
2008年 | 70篇 |
2007年 | 83篇 |
2006年 | 58篇 |
2005年 | 40篇 |
2004年 | 57篇 |
2003年 | 40篇 |
2002年 | 29篇 |
2001年 | 30篇 |
2000年 | 30篇 |
1999年 | 17篇 |
1998年 | 17篇 |
1997年 | 8篇 |
1996年 | 6篇 |
1995年 | 13篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 6篇 |
1991年 | 7篇 |
1990年 | 6篇 |
1989年 | 3篇 |
1987年 | 6篇 |
1986年 | 2篇 |
1985年 | 4篇 |
1984年 | 6篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 4篇 |
1972年 | 4篇 |
1971年 | 2篇 |
1967年 | 3篇 |
1966年 | 2篇 |
1965年 | 2篇 |
排序方式: 共有1971条查询结果,搜索用时 31 毫秒
991.
992.
It is a maxim of Public Choice that voluntary exchanges should not be interfered with by the state. But what makes a voluntary market exchange truly voluntary? We suggest, contra much of the economics literature, that voluntary exchange requires consent uncoerced by threats of harm, but that this is not sufficient. In particular, a person pressured to exchange by the dire consequences of failing to exchange—e.g., dying of thirst or hunger—is still coerced, and coerced exchange cannot be voluntary. The weaker party’s desperation gives the other party unconscionable bargaining power. We argue for a distinction, based on a neologism: in the case of coercion by circumstance but not by threat, exchange is still voluntary in the conventional sense, but it is not euvoluntary (i.e., truly voluntary). We will argue that all euvoluntary exchanges are just, while non-euvoluntary exchanges may or may not be unjust; that in competitive markets all exchanges are just, even those that are not euvoluntary, while in bilateral monopolies some exchanges are neither euvoluntary nor just. We will propose a mental device, the “fictitious negotiation”, to determine the just price in non-euvoluntary market exchanges. A primitive version of these ideas can be found in a little known monograph by John Locke, which we will analyze in detail. 相似文献
993.
Albert Heckscher (1857–1897) was a Danish lawyer. In his dissertation (Bidrag till Grundlæggelse af en Afstemningslære), accepted in 1892 at the University of Copenhagen, Heckscher dealt with numerous issues related to voting, especially those related to vote-aggregation in parliaments, courts and committees. He knew the works of Condorcet and Borda quite well, and analyzed many topics that would nowadays fall into the domain of the theory of social choice. These include Condorcet-cycles, differences between Condorcet-effective rules and the Borda rule, strategic voting, the influence of the voting order under the parliamentary voting rules, the likelihood of single-peaked preference profiles, and the problems created by non-separable preferences. Heckscher’s treatment of the Judgment Aggregation Paradox is especially noteworthy. Although Kornhauser and Sager (Yale Law Journal 96: 82–117, 1986) are usually mentioned as the inventors of this problem, Heckscher’s earlier treatment confirms the suspicion that the problem is not of recent origin. Numerous issues studied in the post-Arrowian theory of voting may already be found in Heckscher’s dissertation; some of them have become subjects of systematic study only in the twenty-first century. It is argued that Albert Heckscher, the unknown nineteenth century Danish lawyer, deserves a place in the pantheon of the theory of social choice alongside his better known contemporaries Charles Dodgson and E. J. Nanson. 相似文献
994.
Existing literature on sexual citizenship has emphasized the sexuality-related claims of de jure citizens of nation-states, generally ignoring immigrants. Conversely, the literature on immigration rarely attends to the salience of sexual issues in understanding the social incorporation of migrants. This article seeks to fill the gap by theorizing and analyzing immigrant sexual citizenship. While some scholars of sexual citizenship have focused on the rights and recognition granted formally by the nation-state and others have stressed more diffuse, cultural perceptions of community and local belonging, we argue that the lived experiences of immigrant sexual citizenship call for multiscalar scrutiny of templates and practices of citizenship that bridge national policies with local connections. Analysis of ethnographic data from a study of 76 Mexican gay and bisexual male immigrants to San Diego, California, reveals the specific citizenship templates that these men encounter as they negotiate their intersecting social statuses as gay/bisexual and as immigrants (legal or undocumented); these include an ‘asylum’ template, a ‘rights’ template, and a ‘local attachments’ template. However, the complications of their intersecting identities constrain their capacity to claim immigrant sexual citizenship. The study underscores the importance of both intersectional and multiscalar approaches in research on citizenship as social practice. 相似文献
995.
Legrand B Mazancourt Pd Durigon M Khalifat V Crainic K 《Forensic science international》2002,125(2-3):205-211
Formalin-induced DNA degradation was studied at different fixation times (3, 7, 16 and 32 days) each on 10 formalin fixed paraffin embedded tissues (FFPET) stored for 15 years at room temperature.The four different extraction protocols used in this study showed that Chelex100 extracts performed the best at 3 and 7 days of formalin fixation (DFF) (with regard to the quantity and the quality of the DNA). However, Qiamp extracts showed better results for long sized alleles, as well for single polymerase chain reaction (PCR) amplifications after 16 and 32 DFF, as for multiplex PCR at shorter fixation times. DNA degradation is expressed by the size of the amplified alleles, only 100 bp templates surviving after 32 DFF (AMG locus). Single locus amplifications (CD4 and FES/FPS alleles) performed better than multiplex PCR (ProfilerPlus), with nearly 100% positive results at 7 DFF. In both types of amplifications, the success rate decreased proportionally with the time of formalin fixation and, consequently, with the size of the required DNA template. 相似文献
996.
997.
998.
999.
1000.