全文获取类型
收费全文 | 721篇 |
免费 | 40篇 |
专业分类
各国政治 | 32篇 |
工人农民 | 93篇 |
世界政治 | 67篇 |
外交国际关系 | 44篇 |
法律 | 384篇 |
中国政治 | 9篇 |
政治理论 | 130篇 |
综合类 | 2篇 |
出版年
2024年 | 1篇 |
2023年 | 7篇 |
2022年 | 11篇 |
2021年 | 9篇 |
2020年 | 20篇 |
2019年 | 33篇 |
2018年 | 34篇 |
2017年 | 47篇 |
2016年 | 47篇 |
2015年 | 25篇 |
2014年 | 37篇 |
2013年 | 116篇 |
2012年 | 30篇 |
2011年 | 28篇 |
2010年 | 25篇 |
2009年 | 19篇 |
2008年 | 25篇 |
2007年 | 23篇 |
2006年 | 21篇 |
2005年 | 11篇 |
2004年 | 11篇 |
2003年 | 14篇 |
2002年 | 10篇 |
2001年 | 15篇 |
2000年 | 15篇 |
1999年 | 16篇 |
1998年 | 13篇 |
1997年 | 6篇 |
1996年 | 7篇 |
1995年 | 8篇 |
1994年 | 6篇 |
1993年 | 3篇 |
1992年 | 8篇 |
1991年 | 4篇 |
1989年 | 7篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1986年 | 6篇 |
1985年 | 12篇 |
1984年 | 3篇 |
1983年 | 1篇 |
1982年 | 6篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1974年 | 2篇 |
1973年 | 1篇 |
排序方式: 共有761条查询结果,搜索用时 375 毫秒
471.
472.
Christopher E. Johnson M.S. Amritha Premasuthan M.S. Jessica Satkoski Trask Ph.D. Sree Kanthaswamy Ph.D. 《Journal of forensic sciences》2013,58(2):486-490
Most narcotics‐related cases in the United States involve Cannabis sativa. Material is typically identified based on the cystolithic hairs on the leaves and with chemical tests to identify of the presence of cannabinoids. Suspect seeds are germinated into a viable plant so that morphological and chemical tests can be conducted. Seed germination, however, causes undue analytical delays. DNA analyses that involve the chloroplast and nuclear genomes have been developed for identification of C. sativa materials, but they require several nanograms of template DNA. Using the trnL 3′ exon‐trnF intragenic spacer regions within the C. sativa chloroplast, we have developed a real‐time quantitative PCR assay that is capable of identifying picogram amounts of chloroplast DNA for species determination of suspected C. sativa material. This assay provides forensic science laboratories with a quick and reliable method to identify an unknown sample as C. sativa. 相似文献
473.
474.
475.
Jessica Fortin-Rittberger 《Democratization》2013,20(1):95-117
While effective state capacity can reasonably be considered a necessary condition for democratization, strong states do not automatically produce democratic regimes, nor do they guarantee their survival. Far from being sufficient conditions for democracy, strong or capable states are also thought to be indispensable for the maintenance of autocratic rule. The present article puts to the test the hypothesis that a certain level of state capacity is needed to engage in effective electoral malpractice, using general and more specific indicators of electoral fraud. This article proposes two opposing mechanisms through which state capacity can influence the quality of elections: through infrastructural state capacity and coercive state capacity. The article demonstrates that electoral fraud is more likely in countries where infrastructural state capacity is weak and that coercive state capacity plays a more ambiguous role than previously thought. The analyses also reveal that different factors are at work when looking at precise types of electoral malpractice rather than general measures: voter and candidate intimidation, fraudulent tabulation of votes, unfair media coverage of campaigns and vote buying seem to engage different sets of facilitating structures. 相似文献
476.
The Legal Education and Training Review (LETR) which reported in June 2013 conceded that undergraduate law degrees are generally outside the remit of the review other than when there is a direct impact on the provision of legal services. On first glance therefore the review has few implications for those of us interested in delivering a liberal legal education and developing socio-legal approaches to law and legal study. However, on closer reading, the report contains a number of suggestions which, if taken up by the regulators, have significant potential to change law degrees, even if regulation remains “light touch”. This article explores those issues with a particular focus on the implications for liberal law degrees and socio-legal approaches to law teaching. In particular the article will explore issues around possible changes to foundation subjects; the creation of a framework of learning outcomes; the possible strengthening of legal writing and research in the curriculum and the opportunities offered for the introduction of more socio-legal material; and the trickle-down effect likely to be felt by providers of undergraduate law degrees of changes in regulation of legal services and as a result of student, employer and other stakeholder expectations. 相似文献
477.
478.
Jessica Robinson Preece 《Legislative Studies Quarterly》2014,39(2):147-167
Electoral rules can motivate politicians to cultivate a “personal vote” through their legislative voting records. However, I argue that candidate‐selection procedures have the ability to overpower these electoral incentives. This study—the first systematic study of how candidate selection and electoral rules interact—takes advantage of Lithuania's unique mixed electoral rules and fortuitous candidate‐selection procedures. Regardless of electoral rules, MPs whose future careers depend on getting renominated by central party leaders vote against the party less than those whose careers do not. This evidence of a “selectoral connection” suggests candidate‐selection procedures must be studied much more seriously. 相似文献
479.
Envisioning the next generation of behavioral health and criminal justice interventions 总被引:1,自引:0,他引:1
Matthew W. Epperson Nancy Wolff Robert D. Morgan William H. Fisher B.Christopher Frueh Jessica Huening 《International journal of law and psychiatry》2014
The purpose of this paper is to cast a vision for the next generation of behavioral health and criminal justice interventions for persons with serious mental illnesses in the criminal justice system. The limitations of first generation interventions, including their primary focus on mental health treatment connection, are discussed. A person–place framework for understanding the complex factors that contribute to criminal justice involvement for this population is presented. We discuss practice and research recommendations for building more effective interventions to address both criminal justice and mental health outcomes. 相似文献
480.
Aletha C. Huston Anjali E. Gupta Jessica Thornton Walker Chantelle J. Dowsett Sylvia R. Epps Amy E. Imes Vonnie C. McLoyd 《Journal of policy analysis and management》2011,30(4):729-754
New Hope, an employment‐based poverty‐reduction intervention for adults evaluated in a random‐assignment experimental design, had positive impacts on children's achievement and social behavior two and five years after random assignment. The question addressed in this paper was the following: Did the positive effects of New Hope on younger children diminish or even reverse when children reached the challenges of adolescence (eight years after random assignment)? Small positive impacts on school progress, school motivation, positive social behavior, child well‐being, and parent control endured, but impacts on school achievement and problem behavior were no longer evident. The most likely reasons for lasting impacts were that New Hope families were slightly less likely to be poor, and children had spent more time in center‐based child care and structured activities. New Hope represents a model policy that could produce modest improvements in the lives of low‐income adults and children. © 2011 by the Association for Public Policy Analysis and Management. 相似文献