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   928篇
  免费   77篇
各国政治   47篇
工人农民   135篇
世界政治   50篇
外交国际关系   37篇
法律   552篇
中国政治   17篇
政治理论   167篇
  2023年   12篇
  2022年   18篇
  2021年   20篇
  2020年   31篇
  2019年   51篇
  2018年   77篇
  2017年   59篇
  2016年   77篇
  2015年   27篇
  2014年   50篇
  2013年   143篇
  2012年   35篇
  2011年   44篇
  2010年   27篇
  2009年   36篇
  2008年   40篇
  2007年   37篇
  2006年   23篇
  2005年   30篇
  2004年   27篇
  2003年   24篇
  2002年   19篇
  2001年   6篇
  2000年   4篇
  1999年   3篇
  1998年   4篇
  1997年   8篇
  1996年   1篇
  1995年   6篇
  1994年   7篇
  1993年   5篇
  1992年   7篇
  1991年   1篇
  1990年   4篇
  1989年   3篇
  1988年   6篇
  1987年   4篇
  1986年   5篇
  1985年   6篇
  1984年   4篇
  1982年   4篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   2篇
  1975年   1篇
  1972年   1篇
  1968年   1篇
  1966年   1篇
排序方式: 共有1005条查询结果,搜索用时 15 毫秒
941.
Research into the deposition patterns of primer gunshot residue (GSR) beyond a primary target was previously nonexistent. This study aimed to determine the deposition patterns of GSR once a bullet passed through an initial target and continued on its path into additional targets. Multiple repetitions were performed to assess the GSR deposition patterns after a bullet was shot through a closed window into either a dummy or a wall within an enclosed room. Samples were taken from both the primary and secondary target holes as well as from nontarget areas. Significant amounts of GSR were found on all samples. The results show that GSR continues to be deposited along the path of the bullet after passing through a primary glass target. These findings reiterate the lack of probative value in collecting GSR samples from gunshot victims even if they are in an enclosed area separate from the shooter.  相似文献   
942.
943.
Rapid industrial growth in post-World War II Japan has contributed to radical external changes in the lives of Japanese women. Among them, the increase in the average woman's lifespan and the decrease in family size have given women a number of years when they are relatively free of childcare and therefore available to enter the job market. Nevertheless, traditional values help to maintain rigid sex-role stereotyping and are woven together with the aims of the capitalist, corporate society to form a complex socio-economic fabric in which women are kept in a subordinate position economically, socially and psychologically. It is against this background that the International Women's Year and the UN Decade for Women have been introduced to Japan and have had the positive effect of providing both validity to the efforts of individuals and organizations struggling for sexual equality, and tools with which to apply leverage in the struggle to change discriminatory social institutions. In this brief paper, a number of issues that are being confronted by women in Japan today will be discussed within the context of the general socio-economic trends with the aim of clarifying gains in the struggle to ensure equality for women as well as some of the challenges which lie ahead.Note: As this paper was written in the summer of 1984, the political situation has changed somewhat since then.  相似文献   
944.
945.
946.
947.
948.
Winters R 《Time》2006,167(7):26-27
  相似文献   
949.
Children from 5 to 12 years of age (N=779) were shown a videotape where a preschool teacher has money stolen from her wallet. Children were shown a lineup, and for children in the bystander condition, the lineup contained a familiar bystander without the thief. Children in the control condition viewed the same lineup but they had not seen the bystander in the videotape. Among the 11–12-year olds, participants in the bystander condition were significantly more likely than control participants to misidentify the familiar bystander. This effect was not found in children from 5 to 10 years of age. When children in the control condition were shown a lineup that contained the thief without the bystander, the 11–12-year olds were significantly more likely than the younger children to correctly identify the thief. These findings demonstrate that age can both increase and decrease the accuracy of children’s lineup identification accuracy depending on the task at hand and the content of a lineup.  相似文献   
950.
Fifteen autosomal STR loci were typed in a population sample of 318 unrelated individuals from northern Greece. Allele frequencies were determined, and Hardy-Weinberg equilibrium tested, for the following loci: D5S818, D7S820, TH01, TPOX, vWA, CSF1PO, D16S539, D13S317, D8S1179, D3S1358, FGA, PENTA D, PENTA E, D21S11, D18S51.  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