全文获取类型
收费全文 | 2202篇 |
免费 | 130篇 |
专业分类
各国政治 | 165篇 |
工人农民 | 178篇 |
世界政治 | 218篇 |
外交国际关系 | 127篇 |
法律 | 1048篇 |
中国政治 | 8篇 |
政治理论 | 578篇 |
综合类 | 10篇 |
出版年
2023年 | 18篇 |
2022年 | 20篇 |
2021年 | 25篇 |
2020年 | 68篇 |
2019年 | 74篇 |
2018年 | 96篇 |
2017年 | 122篇 |
2016年 | 114篇 |
2015年 | 77篇 |
2014年 | 99篇 |
2013年 | 343篇 |
2012年 | 69篇 |
2011年 | 89篇 |
2010年 | 50篇 |
2009年 | 69篇 |
2008年 | 69篇 |
2007年 | 82篇 |
2006年 | 70篇 |
2005年 | 72篇 |
2004年 | 68篇 |
2003年 | 62篇 |
2002年 | 50篇 |
2001年 | 49篇 |
2000年 | 26篇 |
1999年 | 24篇 |
1998年 | 31篇 |
1997年 | 33篇 |
1996年 | 18篇 |
1995年 | 15篇 |
1994年 | 10篇 |
1993年 | 14篇 |
1992年 | 16篇 |
1991年 | 17篇 |
1990年 | 13篇 |
1989年 | 15篇 |
1988年 | 15篇 |
1987年 | 22篇 |
1986年 | 16篇 |
1985年 | 14篇 |
1984年 | 14篇 |
1983年 | 16篇 |
1982年 | 18篇 |
1981年 | 22篇 |
1980年 | 9篇 |
1979年 | 9篇 |
1978年 | 10篇 |
1977年 | 15篇 |
1975年 | 9篇 |
1974年 | 7篇 |
1968年 | 10篇 |
排序方式: 共有2332条查询结果,搜索用时 203 毫秒
201.
202.
Crime, Law and Social Change - China’s famed growth has created a paradox of huge proportions that is associated with how this development could happen despite the well documented issue of... 相似文献
203.
204.
Alberto Fuentes-López Aarón Pedreño Sala Elena Romera José Galián 《Science & justice》2021,61(2):150-159
Studying dipterans at the scene of a death can provide essential information for interpreting the evidence and help to reconstruct the events happened to a corpse in the past. Molecular tools have been employed for identification at specific levels in the cases of cryptic species or poorly conserved specimens. Identification of specimens is essential in forensic entomology since each species has a specific growth rate, which determines the calculation of the minimum post mortem interval (minPMI). In addition, phylogeographic reconstruction within a species can help to differentiate the haplotypes from a geographic area, thereby helping to clarify the possible relocation of a corpse. The morphological identification of Sarcophagidae species is often difficult, especially for the females. This is an important Diptera family since some of its species are among the first to reach a corpse, especially in warm areas. In this study, we compared the sarcophagids found in human corpses in forensic cases in Alicante (southeast of Spain) with specimens collected from baited traps in the same area and surrounding provinces. In total, 189 specimens were collected, comprising 72 from forensic cases and 117 from baited traps. Molecular identification was conducted by sequencing the cox1 mitochondrial gene and analyzing the sequences using ABGD, GMYC, and BIN species delimitation methods. The median joining algorithm in the PopART program was used to construct phylogeographic networks. Eight species in the family Sarcophagidae were identified. The most widely collected species were Sarcophaga argyrostoma and Sarcophaga tibialis. The haplotype networks obtained for these species did not indicate a clear geographic distribution of haplotypes. The S. argyrostoma samples from Alcoy were clearly isolated. The results demonstrated that this method is useful for identifying Sarcophagidae samples in forensic investigations and it can be employed for minPMI estimation. 相似文献
205.
Is Leadership in the Eye of the Beholder? A Study of Intended and Perceived Leadership Practices and Organizational Performance
下载免费PDF全文
![点击此处可从《Public administration review》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Leadership is a matter of both intentions and perceptions, which do not necessarily always match. Because employees’ motivation and commitment are only affected by leadership if they notice it, employee‐perceived leadership is expected to have a stronger correlation with organizational performance than leader‐intended leadership. This expectation is tested for transformational and transactional leadership, as both types of practices are expected to increase performance. Using a sample of 1,621 teachers and 79 Danish high school principals, the authors find that leader‐intended and employee‐perceived transformational and transactional leadership are only weakly correlated and that only employee‐perceived leadership practices (both transformational and transactional) are significantly related to objectively measured school performance. The results show that it is important to distinguish between intended and perceived leadership and that leaders should be aware of how their practices are perceived. 相似文献
206.
Efrén O. Pérez 《American journal of political science》2015,59(3):549-564
Though political scientists generally understand the origins of native‐born reactions to foreigners, less is known about how anti‐immigrant contexts trigger a political response within immigrant groups. I address this question by studying the connection between xenophobic rhetoric and Latino politics. I claim that xenophobic rhetoric raises the salience of ethnic identity and impugns its worth. This identity threat leads high‐identifying group members to engage in political efforts that assert their group's positive value, whereas low identifiers shun political opportunities to bolster their group's devaluation. I test these claims with an experiment embedded in a nationally representative opinion survey of Latino adults. In light of xenophobic rhetoric, I find that relative to low identifiers, high‐identifying Latinos become less politically trusting, more ethnocentric, and increasingly supportive of policies that emphasize ingroup pride. These results clarify xenophobic rhetoric's role in amplifying the influence of ethnic identity on immigrant politics. 相似文献
207.
208.
209.
210.