全文获取类型
收费全文 | 9107篇 |
免费 | 566篇 |
专业分类
各国政治 | 466篇 |
工人农民 | 309篇 |
世界政治 | 641篇 |
外交国际关系 | 367篇 |
法律 | 5893篇 |
中国政治 | 45篇 |
政治理论 | 1893篇 |
综合类 | 59篇 |
出版年
2021年 | 54篇 |
2020年 | 220篇 |
2019年 | 232篇 |
2018年 | 253篇 |
2017年 | 319篇 |
2016年 | 303篇 |
2015年 | 261篇 |
2014年 | 244篇 |
2013年 | 996篇 |
2012年 | 238篇 |
2011年 | 244篇 |
2010年 | 275篇 |
2009年 | 292篇 |
2008年 | 247篇 |
2007年 | 225篇 |
2006年 | 240篇 |
2005年 | 224篇 |
2004年 | 237篇 |
2003年 | 205篇 |
2002年 | 195篇 |
2001年 | 349篇 |
2000年 | 288篇 |
1999年 | 257篇 |
1998年 | 131篇 |
1997年 | 81篇 |
1996年 | 92篇 |
1995年 | 103篇 |
1994年 | 109篇 |
1993年 | 103篇 |
1992年 | 165篇 |
1991年 | 178篇 |
1990年 | 163篇 |
1989年 | 171篇 |
1988年 | 134篇 |
1987年 | 151篇 |
1986年 | 140篇 |
1985年 | 151篇 |
1984年 | 114篇 |
1983年 | 127篇 |
1982年 | 95篇 |
1981年 | 87篇 |
1980年 | 69篇 |
1979年 | 116篇 |
1978年 | 73篇 |
1977年 | 66篇 |
1976年 | 53篇 |
1975年 | 50篇 |
1974年 | 58篇 |
1973年 | 57篇 |
1972年 | 49篇 |
排序方式: 共有9673条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
995.
996.
Opinion Backlash and Public Attitudes: Are Political Advances in Gay Rights Counterproductive? 下载免费PDF全文
Benjamin G. Bishin Thomas J. Hayes Matthew B. Incantalupo Charles Anthony Smith 《American journal of political science》2016,60(3):625-648
One long‐recognized consequence of the tension between popular sovereignty and democratic values like liberty and equality is public opinion backlash, which occurs when individuals recoil in response to some salient event. For decades, scholars have suggested that opinion backlash impedes policy gains by marginalized groups. Public opinion research, however, suggests that widespread attitude change that backlash proponents theorize is likely to be rare. Examining backlash against gays and lesbians using a series of online and natural experiments about marriage equality, and large‐sample survey data, we find no evidence of opinion backlash among the general public, by members of groups predisposed to dislike gays and lesbians, or from those with psychological traits that may predispose them to lash back. The important implication is that groups pursuing rights should not be dissuaded by threats of backlash that will set their movement back in the court of public opinion. 相似文献
997.
998.
Within any type of system, the actors in the system inevitably compete over resources. With competition comes the possibility of conflict. To minimize such effects, actors often will partition the system into geographic territories. It is against the larger ecological backdrop of competition and conflict that we examine territory formation among urban street gangs. Although previous studies have examined the social and built environment where gangs form, and how the presence of a gang influences local levels of violence, we know little about how competitive interactions are tied to the formation and maintenance of gang territories. We use formal spatial Lotka–Volterra competition models to derive hypotheses about competition‐driven territory formation. By using data on 563 between‐gang shootings, involving 13 rival street gangs in the Hollenbeck Policing Division of Los Angeles, we show that violence strongly clusters along the boundaries between gangs in a way that is quantitatively predicted by the theory. The results suggest that even weak competitive interactions between gangs are sufficient to drive gang territory formation without recourse to other processes or assumptions. 相似文献
999.
1000.