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   71553篇
  免费   3308篇
各国政治   4526篇
工人农民   2965篇
世界政治   6326篇
外交国际关系   3941篇
法律   34309篇
中国共产党   11篇
中国政治   754篇
政治理论   21081篇
综合类   948篇
  2021年   410篇
  2020年   1178篇
  2019年   1534篇
  2018年   1705篇
  2017年   2034篇
  2016年   2219篇
  2015年   1841篇
  2014年   2120篇
  2013年   10614篇
  2012年   1701篇
  2011年   1823篇
  2010年   1876篇
  2009年   2104篇
  2008年   1843篇
  2007年   1824篇
  2006年   1946篇
  2005年   1849篇
  2004年   1750篇
  2003年   1584篇
  2002年   1584篇
  2001年   1811篇
  2000年   1570篇
  1999年   1366篇
  1998年   1162篇
  1997年   1033篇
  1996年   992篇
  1995年   950篇
  1994年   984篇
  1993年   990篇
  1992年   1043篇
  1991年   1083篇
  1990年   1013篇
  1989年   1075篇
  1988年   1046篇
  1987年   1064篇
  1986年   1048篇
  1985年   1102篇
  1984年   985篇
  1983年   1047篇
  1982年   935篇
  1981年   890篇
  1980年   698篇
  1979年   743篇
  1978年   610篇
  1977年   561篇
  1976年   519篇
  1975年   441篇
  1974年   437篇
  1973年   437篇
  1972年   392篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
841.
Hoefler JM  Kamoie BE 《Law & policy》1992,14(4):337-380
The right to die may be among the most legally complex and culturally sensitive areas of civil rights to emerge in our time. The thorny issues associated with a terminally ill individual's right to self-determination, and the disposition of individuals who are incompetent to make right to die decisions for themselves, promises to keep all parties involved - health care professionals, medical ethicists, families, lawyers, judges, and state legislators -busy for some time to come. To this point, the state courts have taken the lead in the right to die debate, while the state legislatures have tended to drag their collective feet. This article lays the case law groundwork for right to die decision making, then goes on to assay the legislative responses to the issue that have been rendered in the fifty states.  相似文献   
842.
843.
844.
In this article we examine how increasing the reimbursement of physicians and expanding Medicaid eligibility affect access to care for children in Cook County, Illinois, which overlies Chicago. Using Medicaid claims and other data at the zip-code level, we compare the places where Medicaid children live with the places where all the physicians who treat children and those who accept Medicaid patients have their practices. Our findings suggest that the recent changes in legislation are unlikely to benefit extremely poor children, who are more likely to live in depressed inner-city areas, where there are few physicians. "Near-poor" children whose homes are dispersed throughout the county, who are now eligible for Medicaid as a result of the recent changes, are likely to see improvements in their access to care. Further changes in policy, aimed at enhancing the capacity of institutions providing care, could improve access for the children of the inner city.  相似文献   
845.
846.
847.
The Iran-Contra affair is an example of the type of event that is expected to give rise to a rally of public opinion behind the president. However, the public's response to this event, uncharacteristically, was a sharp decrease in support for President Reagan. This case study constitutes an attempt to explore the sources of the public opinion response to foreign policy events. Statements of political elites, news coverage and commentary, and public opinion assessments are examined to test the patriotism, priming, and opinion leadership explanations of the rally phenomenon. The actions of opinion leaders appears to provide the best explanation of the differential public response to the Iran-Contra affair.  相似文献   
848.
We report seven fatalities resulting from the ingestion of illicit drugs packaged in condoms, rubber balloons, or plastic bags which were observed in the last 4 years at the Office of the Chief Medical Examiner, State of Maryland. All the victims, with the exception of one, were men ranging in age from 19 to 37 years. There was no racial predominance. No drug paraphernalia was found at any scene. In two cases, seizure-like activity was documented. One victim had recently returned from Nigeria; therefore, Lassa fever was initially suspected. Two of the victims were "body packer" contrabanders who had just arrived from Africa. They used body cavities to hide large amounts of heroin to avoid U.S. Customs. The other five cases were "mini-packers," small-time illicit drug dealers who had swallowed a single bag of cocaine to avoid police detection. The possible mechanism of leaking or rupture of the latex container is discussed.  相似文献   
849.
During preliminary examination of the body of a homicide victim, a peculiar red "fiber" was noticed and recovered. Initially believing this to be a carpet fiber, the item was subjected to fiber analysis. It was found to be a short coiled particle not like any known natural or synthetic fabric fiber. Subsequent examinations determined this "fiber" to be the larva of a common freshwater midge (Diptera; Chironomidae). Chironomid larvae have been observed on other bodies recovered from freshwater environments. Entomological studies of this organism have led to the conclusion that the presence of chironomid larvae indicates submersion of the body.  相似文献   
850.
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