全文获取类型
收费全文 | 452篇 |
免费 | 19篇 |
专业分类
各国政治 | 35篇 |
工人农民 | 12篇 |
世界政治 | 56篇 |
外交国际关系 | 29篇 |
法律 | 186篇 |
中国政治 | 3篇 |
政治理论 | 143篇 |
综合类 | 7篇 |
出版年
2023年 | 2篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 10篇 |
2019年 | 20篇 |
2018年 | 20篇 |
2017年 | 17篇 |
2016年 | 17篇 |
2015年 | 12篇 |
2014年 | 7篇 |
2013年 | 78篇 |
2012年 | 15篇 |
2011年 | 18篇 |
2010年 | 19篇 |
2009年 | 18篇 |
2008年 | 15篇 |
2007年 | 15篇 |
2006年 | 19篇 |
2005年 | 16篇 |
2004年 | 16篇 |
2003年 | 14篇 |
2002年 | 19篇 |
2001年 | 10篇 |
2000年 | 11篇 |
1999年 | 9篇 |
1998年 | 6篇 |
1997年 | 3篇 |
1996年 | 7篇 |
1995年 | 9篇 |
1994年 | 3篇 |
1993年 | 3篇 |
1992年 | 5篇 |
1991年 | 5篇 |
1990年 | 1篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1980年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有471条查询结果,搜索用时 0 毫秒
51.
52.
53.
Tim Frazer 《The Modern law review》1990,53(5):609-623
54.
Tim Kalafut Simone Pugh Peter Gill Sarah Abbas Marie Semaan Issam Mansour James Curran Jo-Anne Bright Tacha Hicks Richard Wivell John Buckleton 《Journal of forensic sciences》2022,67(1):128-135
Semaan et al. (J Forensic Res, 2020, 11, 453) discuss a mock case “where eight different individuals [P1 through P8] could not be excluded in a mixed DNA analysis. Even though … expert DNA mixture analysis software was used.” Two of these are the true donors. The LRs reported are incorrect due to the incorrect entry of propositions into LRmix Studio. This forced the software to account for most of the alleles as drop-in, resulting in LRs 60–70 orders of magnitude larger than expected. P1, P2, P4, P5, and P8 can be manually excluded using peak heights. This has relevance when using LRmix which does not use peak heights. We extend the work using the same two reference genotypes who were the true contributors as Semaan et al. (J Forensic Res, 2020, 11, 453). We simulate three two-donor mixtures with peak heights using these two genotypes and analyze using STRmix?. For the simulated 1:1 mixture, one of the non-donors’ LRs supported him being a contributor when no conditioning was used. When considered in combination with any other potential donors (i.e., with conditioning), this non-donor was correctly eliminated. For the 3:1 mixture, all results correctly supported that the non-donors were not contributors. The low-template 4:1 mixture LRs with no conditioning showed support for all eight profiles as donors. However, the results from pair-wise conditioning showed that only the two ground truth donors had LRs supporting that they were contributors to the mixture. We recommend the use of peak heights and conditioning profiles, as this allows better sensitivity and specificity even when the persons share many alleles. 相似文献
55.
The history of Danish political science is young, and public administration has from the beginning been part of the training of political scientists. This background reflects a double strategy: first, in order to ensure political scientists a position in the labour market, they were launched as a new kind of generalist, competing with lawyers and economists. Second, public administration has from the very beginning been seen as a subfield of political science. Even if the institutions engaging in PA research and training have varying profiles, the integration of the discipline in political science is still dominant. So far it has been a success, whether measured at the level of political science graduates in the civil service or the level of PA research. However, the paper argues that in a tougher labour market, generalists with a broad political science background face severe competition from lawyers and economists, and that this must have implications for the direction of research and training in public administration. 相似文献
56.
Yellowstone National Park and the surrounding mountainous region comprise the Greater Yellowstone Ecosystem (GYE), a 19 million acre area that is one of the few relatively intact ecosystems in the lower 48 states. Conservationists believe that continuation of present land management practices in the region will disrupt the ecological integrity of the GYE. Many authors have identified and described these threats, but as yet there has been no sustained effort to make sense of these threats in the context of the ongoing dynamic policy debate. We develop the foundation for such understanding by examining the implicit problem definitions that have emerged from this debate. They fall into three general categories: 1) a scientific definition, 2) an economic definition, and 3) a bureaucratic definition. This process produces an exploratory definition of the policy problem, which suggests a strategy for better understanding and policy design. We propose several intervention points at which substantive, one-the-ground improvements in the management of the GYE are possible. 相似文献
57.
58.
59.
60.