全文获取类型
收费全文 | 1268篇 |
免费 | 67篇 |
专业分类
各国政治 | 72篇 |
工人农民 | 59篇 |
世界政治 | 92篇 |
外交国际关系 | 103篇 |
法律 | 704篇 |
中国政治 | 11篇 |
政治理论 | 284篇 |
综合类 | 10篇 |
出版年
2023年 | 18篇 |
2022年 | 27篇 |
2021年 | 17篇 |
2020年 | 36篇 |
2019年 | 47篇 |
2018年 | 51篇 |
2017年 | 61篇 |
2016年 | 70篇 |
2015年 | 38篇 |
2014年 | 59篇 |
2013年 | 174篇 |
2012年 | 60篇 |
2011年 | 40篇 |
2010年 | 38篇 |
2009年 | 45篇 |
2008年 | 47篇 |
2007年 | 63篇 |
2006年 | 44篇 |
2005年 | 53篇 |
2004年 | 39篇 |
2003年 | 38篇 |
2002年 | 42篇 |
2001年 | 19篇 |
2000年 | 18篇 |
1999年 | 23篇 |
1998年 | 13篇 |
1997年 | 9篇 |
1996年 | 7篇 |
1995年 | 14篇 |
1994年 | 9篇 |
1993年 | 3篇 |
1992年 | 20篇 |
1991年 | 7篇 |
1990年 | 6篇 |
1989年 | 10篇 |
1988年 | 8篇 |
1987年 | 6篇 |
1986年 | 7篇 |
1985年 | 6篇 |
1984年 | 3篇 |
1983年 | 7篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1980年 | 4篇 |
1975年 | 4篇 |
1973年 | 2篇 |
1969年 | 3篇 |
1966年 | 3篇 |
1962年 | 1篇 |
1955年 | 1篇 |
排序方式: 共有1335条查询结果,搜索用时 15 毫秒
831.
832.
833.
Empirical evidence that migrants send home more remittances after disasters raises the question of whether remittances are used to self-insure, substituting for both formal and informal insurance. We investigate this question using a unique data set on the usage patterns of financial services by households in South Africa. We show that the likelihood that a respondent has a formal funeral cover increases with income and banking status. However, it is lower for individuals receiving remittances, which supports the idea that remittances act as self-insurance. We also show that other risk management strategies influence the purchasing of formal funeral cover. Finally, we find that determinants of informal insurance differ from those of formal insurance. 相似文献
834.
Marianne Wade Bruno Aubusson de Cavarlay Josef Zila 《European Journal on Criminal Policy and Research》2008,14(2-3):181-190
This article explores the wider ambit of prosecutorial work outside classic criminal proceedings in 11 European criminal justice systems. It provides an overview of the roles a prosecutor is expected to play, e.g. whether a contribution to national or local crime prevention policy or to act in victim’s interest is expected. It further provides detail as to the setting within which prosecutors work, describing in how far they are politically accountable and/or subject to orders in their daily work. 相似文献
835.
836.
Near Infrared Spectroscopy Detection and Quantification of Herbal Medicines Adulterated with Sibutramine 下载免费PDF全文
Neirivaldo Cavalcante da Silva M.Sc. Ricardo Saldanha Honorato Ph.D. Maria Fernanda Pimentel Ph.D. Salvador Garrigues Ph.D. Maria Luisa Cervera Ph.D. Miguel de la Guardia Ph.D. 《Journal of forensic sciences》2015,60(5):1199-1205
There is an increasing demand for herbal medicines in weight loss treatment. Some synthetic chemicals, such as sibutramine (SB), have been detected as adulterants in herbal formulations. In this study, two strategies using near infrared (NIR) spectroscopy have been developed to evaluate potential adulteration of herbal medicines with SB: a qualitative screening approach and a quantitative methodology based on multivariate calibration. Samples were composed by products commercialized as herbal medicines, as well as by laboratory adulterated samples. Spectra were obtained in the range of 14,000–4000 per cm. Using PLS‐DA, a correct classification of 100% was achieved for the external validation set. In the quantitative approach, the root mean squares error of prediction (RMSEP), for both PLS and MLR models, was 0.2%w/w. The results prove the potential of NIR spectroscopy and multivariate calibration in quantifying sibutramine in adulterated herbal medicines samples. 相似文献
837.
How online insourcing might improve EU policy development—the view from inside the European Commission 下载免费PDF全文
Perhaps policy‐makers are not the most progressive of actors when it comes to incorporating online technologies in their everyday workflow, but they are certainly not dismissive of the Internet and its potential for policy‐making (e.g. European Commission, 2011 , 2012 ). Could online insourcing, for example, be a way to improve the quality of new legislation? This article presents the current view from the European Commission (‘EC’). We have found that many of its Directorates‐General (‘DG’) are actively investigating into the possibilities of insourcing more and better policy contributors at the pre‐legislative stage, by means of online technology. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
838.
Intergenerational continuity of crime among children of organized crime offenders in the Netherlands
van Dijk Meintje Eichelsheim Veroni Kleemans Edward Soudijn Melvin van de Weijer Steve 《Crime, Law and Social Change》2022,77(2):207-227
Crime, Law and Social Change - As existing literature on intergenerational continuity of criminal behavior is mainly based on data on ‘general’ offenders and their children, the current... 相似文献
839.
Crime, Law and Social Change - As many scholars have shown, and other than what is suggested by their legal definition, migrant smuggling and human trafficking are not always easily distinguishable... 相似文献
840.
Elsässer Joshua Philipp Hickmann Thomas Jinnah Sikina Oberthür Sebastian Van de Graaf Thijs 《International Environmental Agreements: Politics, Law and Economics》2022,22(2):373-391
International Environmental Agreements: Politics, Law and Economics - Over the past decades, the growing proliferation of international institutions governing the global environment has impelled... 相似文献