全文获取类型
收费全文 | 21212篇 |
免费 | 475篇 |
专业分类
各国政治 | 1054篇 |
工人农民 | 1479篇 |
世界政治 | 1328篇 |
外交国际关系 | 903篇 |
法律 | 11498篇 |
中国共产党 | 2篇 |
中国政治 | 171篇 |
政治理论 | 5123篇 |
综合类 | 129篇 |
出版年
2020年 | 170篇 |
2019年 | 202篇 |
2018年 | 1504篇 |
2017年 | 1490篇 |
2016年 | 1334篇 |
2015年 | 338篇 |
2014年 | 291篇 |
2013年 | 1760篇 |
2012年 | 527篇 |
2011年 | 1298篇 |
2010年 | 1289篇 |
2009年 | 917篇 |
2008年 | 1067篇 |
2007年 | 1004篇 |
2006年 | 368篇 |
2005年 | 378篇 |
2004年 | 503篇 |
2003年 | 490篇 |
2002年 | 308篇 |
2001年 | 439篇 |
2000年 | 424篇 |
1999年 | 375篇 |
1998年 | 251篇 |
1997年 | 193篇 |
1996年 | 177篇 |
1995年 | 205篇 |
1994年 | 197篇 |
1993年 | 171篇 |
1992年 | 233篇 |
1991年 | 213篇 |
1990年 | 203篇 |
1989年 | 213篇 |
1988年 | 224篇 |
1987年 | 235篇 |
1986年 | 228篇 |
1985年 | 220篇 |
1984年 | 212篇 |
1983年 | 210篇 |
1982年 | 153篇 |
1981年 | 126篇 |
1980年 | 114篇 |
1979年 | 153篇 |
1978年 | 128篇 |
1977年 | 111篇 |
1976年 | 96篇 |
1975年 | 81篇 |
1974年 | 71篇 |
1973年 | 75篇 |
1972年 | 70篇 |
1969年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
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
132.
Ana C. Dinerstein 《Bulletin of Latin American research》2003,22(2):187-200
In December 2001, Argentina experienced a decisive crisis. A financial collapse accelerated by the massive flight of capital and the IMF denial of a new loan was followed by a popular insurrection which, by putting forward the slogan ¡ que se vayan todos, que no quede ni uno solo ! forced the resignation of national authorities. Whilst Duhalde's provisional government is negotiating the conditions for international financial support, faced with inflation and the rise of the dollar exchange rate, social mobilisation is expanding in new forms. This paper argues that the popular insurrection of December 2001 opened a space for the reinvention of the political as negative politics, the asambleas barriales constituting one example of this. 相似文献
133.
134.
135.
136.
Here we consider two ways that nanomedicine might be disruptive. First, low-end disruptions that are intrinsically unpredictable but limited in scope, and second, high end disruptions that involve broader societal issues but can be anticipated, allowing opportunity for ethical reflection. 相似文献
137.
C. Haedrich C. Ortmann O.R. Hofmann J. Seilwinder A. Klein 《Forensic Science International Supplement Series》2006,160(2-3):173-177
In a case of suicidal application of electricity differences between the rectal temperature of the body and the suspected time of death were observed.In order to answer the question whether an electric current from hand to hand over >30 min led to a rise in body temperature FEM-based computer simulations and animal experiments were carried out. Both resulted in a warming of the soft parts in the arm without warming the body core. Thus a temperature-based estimation of the time since death can also be used in cases with electricity as the cause of death. Besides, in the animal experiment we found a spontaneous rise in the body core temperature even without application of electricity which may be a reason for the typical temperature plateau after death. 相似文献
138.
139.
Netherlands International Law Review - 相似文献
140.
Stephen Kershnar 《Law and Philosophy》2007,26(5):437-463
In two recent cases, Grutter v. Bollinger, 539 U.S. 306. (2003) and Gratz v. Bollinger, 539 U.S. 244. (2003), the Supreme
Court held that the Equal Protection Clause permitted state schools to use race-sensitive admissions in order to obtain the
educational benefits that flow from a diverse student body. The diversity-based argument for race-sensitive admissions, scholarships,
awards, and other opportunities at universities should have been rejected because it does not consider the full range of costs
and benefits and because the more narrow educational effects probably weigh against such programs. However, this does not
suggest that applicants’ race, ethnicity, and gender should be ignored. Rather the same consideration that led to the defeat
of the diversity argument, i.e., reasoning capacity, supports the consideration of demographic factors. However, attention
to such factors further undermines the consequentialist case for affirmative action. 相似文献