全文获取类型
收费全文 | 23714篇 |
免费 | 1484篇 |
专业分类
各国政治 | 1002篇 |
工人农民 | 857篇 |
世界政治 | 1687篇 |
外交国际关系 | 733篇 |
法律 | 16360篇 |
中国共产党 | 1篇 |
中国政治 | 163篇 |
政治理论 | 4239篇 |
综合类 | 156篇 |
出版年
2020年 | 448篇 |
2019年 | 497篇 |
2018年 | 577篇 |
2017年 | 688篇 |
2016年 | 725篇 |
2015年 | 590篇 |
2014年 | 642篇 |
2013年 | 2447篇 |
2012年 | 548篇 |
2011年 | 655篇 |
2010年 | 761篇 |
2009年 | 709篇 |
2008年 | 580篇 |
2007年 | 608篇 |
2006年 | 684篇 |
2005年 | 528篇 |
2004年 | 505篇 |
2003年 | 546篇 |
2002年 | 465篇 |
2001年 | 906篇 |
2000年 | 787篇 |
1999年 | 650篇 |
1998年 | 309篇 |
1997年 | 260篇 |
1996年 | 238篇 |
1995年 | 245篇 |
1994年 | 277篇 |
1993年 | 231篇 |
1992年 | 422篇 |
1991年 | 472篇 |
1990年 | 462篇 |
1989年 | 482篇 |
1988年 | 450篇 |
1987年 | 449篇 |
1986年 | 452篇 |
1985年 | 453篇 |
1984年 | 420篇 |
1983年 | 407篇 |
1982年 | 299篇 |
1981年 | 284篇 |
1980年 | 240篇 |
1979年 | 328篇 |
1978年 | 233篇 |
1977年 | 202篇 |
1976年 | 165篇 |
1975年 | 179篇 |
1974年 | 204篇 |
1973年 | 186篇 |
1972年 | 146篇 |
1971年 | 148篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
171.
The link between resource deprivation and urban violence has long been explored in criminological research. Studies, however, have largely ignored the potential for resource deprivation in particular communities to affect rates of violence in others. The relative inattention is notable because of the strong theoretical grounds to anticipate influences that extend both to geographically contiguous areas and to those that, though not contiguous, share similar social characteristics. We argue that such influences—what we term spatial and social proximity effects, respectively—constitute a central feature of community dynamics. To support this argument, we develop and test theoretically derived hypotheses about spatial and social proximity effects of resource deprivation on aggregated and disaggregated homicide counts. Our analyses indicate that local area resource deprivation contributes to violence in socially proximate communities, an effect that, in the case of instrumental homicides, is stronger when such communities are spatially proximate. We conclude by discussing the implications of our findings for theories focused on community‐level social processes and violence, and for policies aimed at reducing crime in disadvantaged areas. 相似文献
172.
173.
174.
Netherlands International Law Review - 相似文献
175.
Interjurisdictional Competition and Regulatory Advantage 总被引:1,自引:0,他引:1
As formal trade and investment barriers fall, government regulations what once were domestic policy matters becomeissues of international concern. International commerce createsthe potential for competition among regulatory jurisdictions.This article explains why there is variation in these regulatorytrends. Three general trajectories are: (a) convergenceamong countries toward less stringent regulations in some cases,(b) convergence toward more stringent regulations in others,while in still other cases (c) differences persist among countries.I offer three (related) propositions which explain the differentregulatory trajectories: #1) Regulations on production processestend toward laxity; whereas product market-access regulationstend toward stringency. #2) Industrial structure affects thestrength of the process/market-access distinction. Powerfulfirms in concentrated markets facilitate collective action andregulatory capture. Dominant producers push for process andmarket-access regulations which reflect their interests, givingthem a competitive regulatory advantage in world markets. #3)The asset specificity of investments affects regulatory convergence.Low asset specificity leads to a competition-in-laxity; highmultinational asset specificity leads to convergence among jurisdictions(as firms seek to lower their transaction costs); and domesticasset specificity leads to differences among jurisdictions.Detailed case studies (on offshore banking, capital requirements,and infant formula) suggest the propositions are necessary tounderstand general outcomes, although not sufficient to fullyexplain individual cases. 相似文献
176.
177.
178.
Eight homicidal youths were assessed for language disorders and psychiatric diagnoses using a battery of standardized language tests and the Diagnostic Interview for Children and Adolescents. Both language disorders and Diagnostic and Statistical Manual III-R psychiatric diagnoses were present in all subjects. 相似文献
179.
180.
James D. Calder 《Crime, Law and Social Change》1992,17(1):1-23
The story of Al Capone's rise and fall as a Chicago gangster has always depended upon selective dissemination of federal agency records, particularly records of the Internal Revenue Service. Capone history, therefore, is state-sanctioned history. The IRS view of the Capone organization, and of the tax evasion conviction, cannot be easily challenged without access to the corpus of the IRS records. Unfortunately, these records remain sealed from public access, despite the fact that selective releases were made prior to 1977 to journalists, popular authors, film producers and historians. Continued secrecy over the Capone records perpetuates a state-sanctioned criminology of organized crime. Calder v. Internal Revenue Service
1 attempted without success to unlock the corpus of IRS-Capone records to investigate the state-sanctioned view. 相似文献