全文获取类型
收费全文 | 1770篇 |
免费 | 464篇 |
专业分类
各国政治 | 385篇 |
工人农民 | 67篇 |
世界政治 | 219篇 |
外交国际关系 | 94篇 |
法律 | 756篇 |
中国政治 | 37篇 |
政治理论 | 643篇 |
综合类 | 33篇 |
出版年
2024年 | 2篇 |
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 33篇 |
2020年 | 38篇 |
2019年 | 156篇 |
2018年 | 96篇 |
2017年 | 141篇 |
2016年 | 153篇 |
2015年 | 136篇 |
2014年 | 132篇 |
2013年 | 542篇 |
2012年 | 93篇 |
2011年 | 95篇 |
2010年 | 113篇 |
2009年 | 50篇 |
2008年 | 72篇 |
2007年 | 42篇 |
2006年 | 40篇 |
2005年 | 26篇 |
2004年 | 30篇 |
2003年 | 17篇 |
2002年 | 20篇 |
2001年 | 7篇 |
2000年 | 16篇 |
1999年 | 13篇 |
1998年 | 10篇 |
1997年 | 13篇 |
1996年 | 14篇 |
1995年 | 13篇 |
1994年 | 12篇 |
1993年 | 13篇 |
1992年 | 7篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 8篇 |
1987年 | 3篇 |
1986年 | 6篇 |
1985年 | 5篇 |
1984年 | 8篇 |
1983年 | 6篇 |
1982年 | 3篇 |
1981年 | 7篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 1篇 |
1974年 | 3篇 |
排序方式: 共有2234条查询结果,搜索用时 15 毫秒
161.
162.
Regina Branton Valerie Martinez‐Ebers Tony E. Carey Jr. Tetsuya Matsubayashi 《American journal of political science》2015,59(2):390-402
Do protests sway public opinion? If so, why and how? To address these questions, we examine the impact of the 2006 immigration protests on immigration policy preferences. We use the 2006 Latino National Survey coupled with protest data to examine whether temporal and spatial exposure to the protests are associated with policy preferences. Our findings lend evidence that protest activity influences Latinos’ immigration policy preferences. However, the findings suggest the effect of protest on immigration policy preferences is not uniform across the population, but rather contingent on generational status and the intensity of protest activity at the local level. 相似文献
163.
Voter polarisation and party responsiveness: Why parties emphasise divided issues,but remain silent on unified issues 下载免费PDF全文
How does voter polarisation affect party responsiveness? Previous research has shown that political parties emphasise political issues that are important to their voters. However, it is posited in this article that political parties are not equally responsive to citizen demands across all issue areas. The hypothesis is that party responsiveness varies considerably with the preference configuration of the electorate. More specifically, it is argued that party responsiveness increases with the polarisation of issues among voters. To test these theoretical expectations, party responsiveness is analysed across nine West European countries from 1982 until 2013. Data on voter attention and voter preferences with regard to specific policy issues from a variety of national election studies is combined with Comparative Manifestos Project data on parties' emphasis of these issues in their election manifestos. The findings have major implications for understanding party competition and political representation in Europe. 相似文献
164.
The effect of evidence type,identification accuracy,line‐up presentation,and line‐up administration on observers' perceptions of eyewitnesses 下载免费PDF全文
165.
166.
167.
Nondestructive Methods for Recovery of Biological Material from Human Teeth for DNA Extraction 下载免费PDF全文
Montserrat Hervella Ph.D. Maitane G. Iñiguez M.Sc. Neskuts Izagirre Ph.D. Alberto Anta Ph.D. Concepción de‐la‐Rúa Ph.D. 《Journal of forensic sciences》2015,60(1):136-141
The extraction of DNA from human skeletal remains applied to forensic, and evolutionary studies do not exclude risks, which are to be evaluated when working with unique specimens that could be damaged or even destroyed. In the present study were evaluated several nondestructive methods for recovering DNA instead of the most currently used pulverization method. Three different procedures to access inside the dental pieces (occlusal perforation, cervical perforation, and cervical cut) have been compared with the aim of recovering as many cell remains as possible to carry out a DNA extraction. Given the DNA quantitation results, a method was proposed that consists of a cervical cut to facilitate the access to the pulp cavity and a subsequent filing of the root canals down to the apex of the dental root. This methodology allows the recovery of both mitochondrial and nuclear DNA, with the minimum deterioration for the dental pieces. 相似文献
168.
Santiago Basabe‐Serrano 《Law & policy》2015,37(4):350-378
This article explains how informal institutions have prevented the emergence of autonomous judges in Paraguay between 1954 and 2011. The central argument is that co‐optation, clientelism, and judicial corruption considered as informal institutions, rooted during the dictatorship, have impeded the appearance of an independent judicial branch in the democratic regime. To test this hypothesis, the article relies on historical narratives, surveys, and semistructured interviews. The conclusions suggest that in countries that have experienced the consolidation of informal institutions oriented toward maintaining the ties of subordination of judges to politicians, constitutional reforms and fragmentation of political power are necessary but not sufficient conditions for improving judicial independence. 相似文献
169.
Janet Box‐Steffensmeier Josh M. Ryan Anand Edward Sokhey 《Legislative Studies Quarterly》2015,40(1):13-53
We examine congressional cue‐taking theory to determine its extent, conditionality, and various forms in the US Senate. Using a novel data‐collection technique (timed C‐SPAN footage), we focus on temporal dynamics via event history analysis. Examining the effects of senator characteristics across 16 votes from the 108th Congress, we find that committee leadership and seniority generally predict cue‐giving, while other types of characteristics predict cue‐giving on certain types of votes. Our results underscore the importance of considering the order and timing of voting when studying congressional behavior. 相似文献
170.