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   8486篇
  免费   218篇
各国政治   423篇
工人农民   441篇
世界政治   553篇
外交国际关系   350篇
法律   5153篇
中国共产党   1篇
中国政治   39篇
政治理论   1642篇
综合类   102篇
  2020年   84篇
  2019年   110篇
  2018年   164篇
  2017年   173篇
  2016年   186篇
  2015年   149篇
  2014年   160篇
  2013年   942篇
  2012年   227篇
  2011年   230篇
  2010年   185篇
  2009年   200篇
  2008年   233篇
  2007年   221篇
  2006年   223篇
  2005年   191篇
  2004年   209篇
  2003年   195篇
  2002年   203篇
  2001年   325篇
  2000年   300篇
  1999年   235篇
  1998年   93篇
  1997年   130篇
  1996年   109篇
  1995年   96篇
  1994年   115篇
  1993年   98篇
  1992年   184篇
  1991年   198篇
  1990年   173篇
  1989年   182篇
  1988年   160篇
  1987年   149篇
  1986年   178篇
  1985年   138篇
  1984年   133篇
  1983年   140篇
  1982年   86篇
  1981年   86篇
  1980年   63篇
  1979年   115篇
  1978年   70篇
  1977年   68篇
  1976年   61篇
  1975年   69篇
  1974年   86篇
  1973年   78篇
  1972年   69篇
  1971年   61篇
排序方式: 共有8704条查询结果,搜索用时 15 毫秒
11.
A method has been developed on reverse phase high performance liquid chromatography for simultaneous determination of methyl, ethyl and isopropyl alcohols under refractive index detection using pure water as the mobile phase. A good separation has been achieved between these alcohols. Detector response was linear with a detection limit of 5 mg/100 ml. Recovery studies were performed by adding known amounts of methyl and ethyl alcohols to blood, lung and liver within the range 80–90%. The reproducibility of the results was always >90%. The quantitative distribution of methyl alcohol in postmortem body tissues and fluids has been reported in three cases of poisoning.  相似文献   
12.
This review chronicles the characteristics of deliberate and accidental mass poisonings that occurred in World Wars I and II, in Bhopal, and in other historical cases up to and including modern wars. It also considers approaches to the investigation of such cases from the medicolegal as well as general standpoints.  相似文献   
13.
14.
He is author of many works about social class, including The Protestant Establishment Revisitedand Philadelphia Gentlemen,both published by Transaction Publishers.  相似文献   
15.
16.
Despite some understanding of general correlates and possible antecedents to intimate partner violence (IPV) within the Christian community, the impact of religious and spiritual factors tends to be confounded by other factors and is often misjudged. Archival data from Wave III of the National Longitudinal Study of Adolescent Health (Add Health) were used to examine the impact of nine religious and spiritual factors on the probability of IPV perpetration by males, aged 18 to 26, who nominally classified themselves as Catholic, Protestant, or Christian. Logistic regression results indicated that IPV perpetration could not be adequately predicted from the religious and spiritual factors. Given the geographic breadth and the size of the Add Health sample, no finding of a predictive model for Christian male-perpetrated IPV challenges the paradigm that religious and spiritual factors should be overtly addressed in faith-based batterers’ programs targeting young adult males.  相似文献   
17.
18.
In recent years, legislators in all fifty states have given grandparents rights to petition for visitation privileges with grandchildren that can be enforced over parental objections. Grandparent visitation rights reflect an effort to protect meaningful relationships children enjoy with nonparental caregivers, enlist the assistance of extended family when the child's nuclear family is disrupted, and defend the interests of grandparents themselves. This psycholegal analysis explores the direct and indirect consequences of grandparent visitation statutes for family functioning. Statutory provisions are summarized, and the effects of these statutes are evaluated in light of what is known about the role of grandparents in child development, how courts evaluate children's "best interests" in grandparent visitation disputes, and how these statutes can alter family functioning in informal ways. The authors conclude that there are risks as well as benefits to children and families in grandparent visitation statutes, and suggest directions for procedural and statutory reform.  相似文献   
19.
This paper examines the historical development of the Australian welfare state with a view to identifying the role that Australia's federal constitutional arrangements have played in shaping that development. Theoretical paradigms have been unanimous in their prognoses: that federal states are likely to be slow in developing welfare state programmes and typically spend less on them than unitary states. But recently it has been argued that federal institutions may have a “ratchet effect” of slowing down the pace of change, irrespective of its direction. The purpose of this chronological account of significant stages in the development of the Australian welfare state is to use the unfolding of historical events — far too rich in nuance and detail to be captured in quantitative modelling — as a test‐bed for establishing whether, and, if so, to what extent, federalism has impacted on the trajectory of Australian welfare state development.  相似文献   
20.
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