全文获取类型
收费全文 | 847篇 |
免费 | 18篇 |
专业分类
各国政治 | 97篇 |
工人农民 | 6篇 |
世界政治 | 118篇 |
外交国际关系 | 13篇 |
法律 | 357篇 |
中国政治 | 36篇 |
政治理论 | 238篇 |
出版年
2015年 | 8篇 |
2014年 | 21篇 |
2013年 | 65篇 |
2012年 | 36篇 |
2011年 | 25篇 |
2010年 | 28篇 |
2009年 | 29篇 |
2008年 | 36篇 |
2007年 | 26篇 |
2006年 | 27篇 |
2005年 | 25篇 |
2004年 | 9篇 |
2003年 | 20篇 |
2002年 | 12篇 |
2000年 | 6篇 |
1999年 | 11篇 |
1998年 | 12篇 |
1997年 | 18篇 |
1996年 | 19篇 |
1995年 | 12篇 |
1994年 | 20篇 |
1993年 | 15篇 |
1992年 | 14篇 |
1991年 | 13篇 |
1990年 | 17篇 |
1989年 | 13篇 |
1988年 | 14篇 |
1987年 | 19篇 |
1986年 | 21篇 |
1985年 | 22篇 |
1984年 | 18篇 |
1983年 | 18篇 |
1982年 | 13篇 |
1981年 | 7篇 |
1980年 | 13篇 |
1979年 | 15篇 |
1978年 | 13篇 |
1977年 | 13篇 |
1976年 | 15篇 |
1975年 | 9篇 |
1974年 | 7篇 |
1973年 | 7篇 |
1972年 | 9篇 |
1971年 | 8篇 |
1970年 | 9篇 |
1969年 | 10篇 |
1968年 | 6篇 |
1967年 | 7篇 |
1966年 | 7篇 |
1962年 | 5篇 |
排序方式: 共有865条查询结果,搜索用时 15 毫秒
1.
There is growing awareness and concern regarding the presence of chemical constituents of pharmaceuticals and personal care products (“PPCPs”) in the environment. A recent USGS study indicated that PPCPs are present at low levels in surface water throughout the U.S. Concern is based in part on the fact that certain PPCPs: (1) are designed to have biological effects (particularly pharmaceuticals), (2) are persistent in or continually added to the environment, (3) have negative environmental effects (specifically on aquatic life) even at low levels, and (4) potentially have cumulative and synergistic effects when combined with other PPCPs. The primary route of PPCPs into the environment is sewage discharges, septic systems, and large stock yards and feedlots where the unmetabolized PPCPs are excreted by humans and animals and end up in surface water and ground-water. Given these circumstances, manufacturers of PPCPs may face a risk of increased regulation and possibly litigation similar to that faced by oxygenate manufacturers and petroleum refiners over the use of Methyl Tertiary Butyl Ether (“MTBE”). Companies can take steps now and in the future that may minimize the impact of these risks. 相似文献
2.
3.
4.
5.
6.
A growing body of evidence shows that minorities are disproportionately the targets of police brutality, but important theoretical questions about the causes of that inequity remain unanswered. One promising line of research involves structural‐level analyses of the incidence of police brutality complaints; however, existing studies do not incorporate variables from alternative theoretical explanations. Drawing on the community accountability hypothesis and the threat hypothesis, we tested the predictions of two prominent structural‐level explanations of police brutality in a study of civil rights criminal complaints. The study included cities of 150,000+ population (n = 114). The findings reveal that two community accountability variables—ratio percent Hispanic citizens to percent Hispanic police officers and the presence of citizen review—were related positively to police brutality complaints, partially supporting that perspective. Two threat hypothesis measures of threatening people—percent black and percent Hispanic (in the Southwest)—were related positively to complaints, as predicted. The relative degree of support for the two hypotheses is assessed. 相似文献
7.
8.
JOSEPH L. SMITH 《Legislative Studies Quarterly》2006,31(2):283-305
Citizen suit provisions, which give proregulatory interests access to the federal courts, can be used by Congress to increase the courts' role in regulatory policy. I analyze 284 environmental regulation bills reported favorably out of committee and show that committee support for citizen suits is a function of the committee's policy goals and the political context in which the bills are generated. These findings indicate that Congress deliberately uses judicial procedures as instruments of political control and that scholars examining judicial policymaking must include legislative goals in the list of explanatory factors. 相似文献
9.
DAVID WEISBURD LAURA A. WYCKOFF JUSTIN READY JOHN E. ECK JOSHUA C. HINKLE FRANK GAJEWSKI 《犯罪学》2006,44(3):549-592
Recent studies point to the potential theoretical and practical benefits of focusing police resources on crime hot spots. However, many scholars have noted that such approaches risk displacing crime or disorder to other places where programs are not in place. Although much attention has been paid to the idea of displacement, methodological problems associated with measuring it have often been overlooked. We try to fill these gaps in measurement and understanding of displacement and the related phenomenon of diffusion of crime control benefits. Our main focus is on immediate spatial displacement or diffusion of crime to areas near the targeted sites of an intervention. Do focused crime prevention efforts at places simply result in a movement of offenders to areas nearby targeted sites—“do they simply move crime around the corner”? Or, conversely, will a crime prevention effort focusing on specific places lead to improvement in areas nearby—what has come to be termed a diffusion of crime control benefits? Our data are drawn from a controlled study of displacement and diffusion in Jersey City, New Jersey. Two sites with substantial street‐level crime and disorder were targeted and carefully monitored during an experimental period. Two neighboring areas were selected as “catchment areas” from which to assess immediate spatial displacement or diffusion. Intensive police interventions were applied to each target site but not to the catchment areas. More than 6,000 20‐minute social observations were conducted in the target and catchment areas. They were supplemented by interviews and ethnographic field observations. Our findings indicate that, at least for crime markets involving drugs and prostitution, crime does not simply move around the corner. Indeed, this study supports the position that the most likely outcome of such focused crime prevention efforts is a diffusion of crime control benefits to nearby areas. 相似文献
10.
Know-Where: Geographies of Knowledge of World Politics 总被引:1,自引:1,他引:0
JOHN AGNEW 《International Political Sociology》2007,1(2):138-148
The problem of "foundations" is a crucial one for any field, particularly perhaps one with as varied a possible repertoire of elementary sources as the study of world politics. In this paper, I draw attention to how some different ways of thinking about where knowledge is produced and how it circulates can be used to inform understanding about geographies of knowledge of world politics. Such geographies, however, are not ends in themselves. The point is to understand the ontological bases of knowing from perspectives that do not privilege a singular history of knowledge associated with a specific world region or of conceptions of knowledge that implicitly or explicitly presume their self-evident universality. In other words, we need to move beyond the all-too-conventional repertoires of relativism and positivism in understanding the bases to knowing about world politics/international relations. The paper suggests some ways forward, which should now be the subject of vigorous debate. 相似文献