全文获取类型
收费全文 | 749篇 |
免费 | 20篇 |
专业分类
各国政治 | 42篇 |
工人农民 | 97篇 |
世界政治 | 63篇 |
外交国际关系 | 21篇 |
法律 | 356篇 |
中国政治 | 7篇 |
政治理论 | 175篇 |
综合类 | 8篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 3篇 |
2020年 | 18篇 |
2019年 | 11篇 |
2018年 | 25篇 |
2017年 | 23篇 |
2016年 | 27篇 |
2015年 | 14篇 |
2014年 | 21篇 |
2013年 | 108篇 |
2012年 | 15篇 |
2011年 | 18篇 |
2010年 | 19篇 |
2009年 | 16篇 |
2008年 | 17篇 |
2007年 | 27篇 |
2006年 | 29篇 |
2005年 | 29篇 |
2004年 | 32篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 20篇 |
2000年 | 20篇 |
1999年 | 13篇 |
1998年 | 12篇 |
1997年 | 16篇 |
1996年 | 16篇 |
1995年 | 9篇 |
1994年 | 18篇 |
1993年 | 12篇 |
1992年 | 14篇 |
1991年 | 7篇 |
1990年 | 18篇 |
1989年 | 10篇 |
1988年 | 10篇 |
1987年 | 6篇 |
1986年 | 9篇 |
1985年 | 7篇 |
1984年 | 7篇 |
1983年 | 7篇 |
1982年 | 10篇 |
1981年 | 7篇 |
1980年 | 9篇 |
1979年 | 4篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1972年 | 2篇 |
排序方式: 共有769条查询结果,搜索用时 0 毫秒
751.
There is an inherent trade-off in federalism regarding representation and equity. With the devolution of responsibilities to regional governments offering increased representation, there comes the inequity of services provided by some governments and not others. However, citizens in these federations may want the best of both worlds—desiring regional control but without the regional policy variation. This tension, dubbed ‘the devolution paradox’ in a study of federal countries in Europe, was less apparent in one key group of regions—those with historic ties through language, culture, or experience. This article examines US respondents to identify whether the devolution paradox is evident in this country and looks specifically at the South, a region with long-standing distinctiveness. We find that there is evidence of the devolution paradox among the American public and that the South is indeed different. 相似文献
752.
Nick Scott Peter Higgs Jonathan P. Caulkins Campbell Aitken Shelley Cogger Paul Dietze 《Journal of Experimental Criminology》2016,12(2):265-275
Objectives
In June 2011, closed-circuit television (CCTV) was introduced in Footscray (a suburb of Melbourne, Australia) to help deter street-based drug trading. We investigate whether there were subsequent shifts in the settings (e.g., street, house) in which heroin was purchased or injected by people who inject drugs (PWID).Methods
Using heroin purchase data from the Melbourne Injecting Drug User Cohort Study, multinomial logistic models with fixed effects for CCTV introduction were used to estimate the percentage of: (1) heroin purchased on the street, from mobile dealers and in house settings; and (2) heroin injections occurring in street, car, public toilet, and house settings. Displacement effects were investigated with a logistic model capturing the likelihood of traveling to Footscray to purchase heroin.Results
Following CCTV introduction, the percentage of heroin injections occurring in public toilet settings decreased by 13 % (95 % CI ?27 %, ?0 %). This was accompanied by a non-significant increase in the percentage of heroin injections in street settings of 23 % (95 % CI ?1 %, +41 %). Changes in other settings were small and non-significant. No suburb displacement effects were found.Conclusions
The introduction of CCTV in Footscray may have displaced PWID who previously injected heroin in public toilets to street settings. Apart from this, Footscray’s street-based heroin market operates much as it did before CCTV.753.
754.
755.
756.
For more than 30 years, significant research in the United States has found that racial and ethnic minorities suffer disproportionately from nearness to environmental disamenities compared with white non-Hispanics and that these results persist even controlling for poverty and “which came first,” the minorities or the disamenities. The engrained discriminatory findings of this environmental justice (EJ) research have led some to argue that we observe “systemic racism,” built into our social systems in ways that may be difficult to perceive. Yet, within the history of the United States, racial and ethnic minorities are not the only groups that have been systematically discriminated against; various religious groups also have histories of discrimination. Here we consider whether, holding constant race and ethnicity, some religious groups may also suffer from “EJ syndrome.” Since the US Census does not collect data on religion, to measure the presence of some religious groups that may be discriminated against, we use an original dataset on the presence of Jewish, Muslim, Church of Jesus Christ of Latter-day Saints (LDS, aka Mormon), and Roman Catholic houses of worship within California's Census tracts. Our results indicate that even controlling for race/ethnicity and income, the presence of Jewish or Muslim houses of worship in a California Census tract increases the likelihood of environmental burden as measured by the CalEnviroScreen 3.0 index of pollution and community vulnerability. 相似文献
757.
758.
759.
760.