首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1546篇
  免费   101篇
各国政治   103篇
工人农民   56篇
世界政治   159篇
外交国际关系   147篇
法律   688篇
中国共产党   1篇
中国政治   17篇
政治理论   454篇
综合类   22篇
  2024年   3篇
  2023年   23篇
  2022年   8篇
  2021年   15篇
  2020年   48篇
  2019年   67篇
  2018年   70篇
  2017年   79篇
  2016年   74篇
  2015年   56篇
  2014年   78篇
  2013年   239篇
  2012年   66篇
  2011年   65篇
  2010年   52篇
  2009年   66篇
  2008年   61篇
  2007年   58篇
  2006年   52篇
  2005年   50篇
  2004年   51篇
  2003年   41篇
  2002年   43篇
  2001年   34篇
  2000年   29篇
  1999年   18篇
  1998年   20篇
  1997年   19篇
  1996年   10篇
  1995年   25篇
  1994年   5篇
  1993年   14篇
  1992年   12篇
  1991年   10篇
  1990年   10篇
  1989年   10篇
  1988年   7篇
  1987年   5篇
  1986年   12篇
  1985年   6篇
  1984年   4篇
  1983年   2篇
  1982年   5篇
  1981年   4篇
  1980年   3篇
  1979年   3篇
  1978年   2篇
  1977年   3篇
  1976年   2篇
  1973年   4篇
排序方式: 共有1647条查询结果,搜索用时 15 毫秒
971.
In many states, young people today can receive a “blended” combination of both a juvenile sanction and an adult criminal sentence. We ask what accounts for the rise of blended sentencing in juvenile justice and whether this trend parallels crime control developments in the adult criminal justice system. We use event history analysis to model state adoption of blended sentencing laws from 1985 to 2008, examining the relative influence of social, political, administrative, and economic factors. We find that states with high unemployment, greater prosecutorial discretion, and disproportionate rates of African American incarceration are most likely to pass blended sentencing provisions. This suggests that the turn toward blended sentencing largely parallels the punitive turn in adult sentencing and corrections—and that theory and research on adult punishment productively extends to developments in juvenile justice.  相似文献   
972.
973.
Kemp  Simon  Burt  Christopher D.B. 《Public Choice》2001,107(3-4):235-252
A review of previous research indicates that people's valuationsof government supplied services are not closely related to theircosts, raising the question of how much people know about thecosts of such goods. Respondents rated the value of governmentand market supplied goods and services and estimated their costsin three studies. The respondents made poor estimates of the percapita costs of supplying government services, and were littlebetter at estimating per capita expenditure on a range of marketsupplied goods (e.g., expenditure on fruit), but they were quiteaccurate at estimating the prices of individual market supplieditems. Rated values of individual market supplied itemscorrelated well with the costs of the items, but rated annualvalues of both government and market supplied goods were moreweakly correlated with their annual per capita costs. The resultssuggests that the inaccuracy in estimating the costs ofgovernment goods might arise because such items do not haveindividual item prices rather than because people generally donot pay for them themselves.  相似文献   
974.
Is a trade‐off between the social benefits of regulation and the economic benefits of development inevitable? We argue that environmental regulation may deter economic growth in some contexts, however, in other contexts the benefits of regulation may be obtained with little or no economic loss. We develop an explanation of the economic impacts of state environmental policy based on a model of public influence on private resource allocation decisions. In this model, we assume utility‐maximizing firms will make investment choices based upon the projected profits on their investments and their willingness to accept the risk associated with the investments. We assert that state policies and administrative institutions influence perceptions of risk by increasing or decreasing uncertainty over future environmental policy and influence return on investments at particular locations by affecting firm‐level production costs. Our results confirm that certain administrative arrangements for environmental regulation may enhance, rather than impede, economic development.  相似文献   
975.
976.
Debates regarding the Bush Administration's grand strategy began long before the forty-third president left office. A group of distinguished historians and political scientists have argued over the course of the last few years that the Administration's grand strategy did not represent a major break with historical precedent, as is sometimes argued, but continued the evangelical support for liberty that has always made the United States a “dangerous nation” to tyrants. Along the way, this revisionism creates straw men, and co-opts or redefines terms that are central to the traditional understanding of U.S. foreign policy. It also seems to misunderstand grand strategy itself, focusing almost entirely on continuity of ends while ignoring the rather glaring discontinuities in the ways that generations of U.S. presidents have chosen to pursue them. Overall, the revisionist project fails in both of its tasks, which are: To make the case that the Bush administration took actions of which the Founding Fathers would have understood and approved; and by implication, to justify the unnecessary, tragic war in Iraq.  相似文献   
977.
978.
979.
980.
Abstract:  Mitochondrial DNA (mtDNA) single nucleotide polymorphisms (SNPs) in an 11-plex assay were typed in three missing person cases involving highly degraded human remains. Unlike the traditional forensic approach to analyzing mtDNA which focuses on sequencing portions of the noncoding Control Region, this assay targets discriminatory SNPs that reside principally in the coding region. In two of the cases, the SNP typing successfully excluded one of two reference families that could not be excluded on the basis of mtDNA hypervariable region sequencing alone, and resulted in the final resolution of both decades-old cases. In a third case, SNP typing confirmed the sorting and reassociation of multiple commingled skeletal elements. The application of a specific mtDNA SNP assay in these cases demonstrates its utility in distinguishing samples when the most common Caucasian hypervariable region type is encountered in forensic casework.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号