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   3536篇
  免费   129篇
  国内免费   4篇
  2020年   33篇
  2019年   44篇
  2018年   59篇
  2017年   74篇
  2016年   88篇
  2015年   44篇
  2014年   65篇
  2013年   411篇
  2012年   103篇
  2011年   116篇
  2010年   67篇
  2009年   73篇
  2008年   100篇
  2007年   94篇
  2006年   103篇
  2005年   104篇
  2004年   93篇
  2003年   97篇
  2002年   91篇
  2001年   54篇
  2000年   49篇
  1999年   58篇
  1998年   76篇
  1997年   50篇
  1996年   55篇
  1995年   44篇
  1994年   41篇
  1993年   50篇
  1992年   47篇
  1991年   52篇
  1990年   45篇
  1989年   53篇
  1988年   50篇
  1987年   41篇
  1986年   44篇
  1985年   39篇
  1984年   59篇
  1983年   42篇
  1982年   58篇
  1981年   41篇
  1980年   45篇
  1979年   51篇
  1978年   48篇
  1977年   44篇
  1976年   45篇
  1975年   45篇
  1974年   54篇
  1973年   46篇
  1969年   44篇
  1967年   32篇
排序方式: 共有3669条查询结果,搜索用时 15 毫秒
991.
992.
993.
Conclusion Wise counseling can relieve the anxiety and inner conflict of parents torn between the dread of their retarded offspring becoming a parent and the fear of an operation they believe to be illegal, immoral, and castrating.By knowing where to refer patients, clergymen can make it possible for some of these deprived members of society to find support and love within marriage without being overburdened by children they are not capable of rearing properly.The author wishes to express her sincere thanks and appreciation to the Reverend Jerry Carpenter, Reverend Robert Denton, and Reverend William H. Genne for reading this paper, and especially to the Reverend Edward L. Lee, Jr. and to Reverend Charles F. Penniman, Jr. for their many suggestions.  相似文献   
994.
George Berry 《Synthese》1968,19(1-2):215-249
  相似文献   
995.
996.
997.
998.
999.
Holden GW 《Psychological bulletin》2002,128(4):590-5; discussion 602-11
Parental use of corporal punishment has been a contentious child-rearing topic for thousands of years. E. T. Gershoff's (2002) meta-analyses undoubtedly will rekindle the debate over whether parents should spank their children. The quality of the existing data is discussed as well as several surprising findings from the meta-analyses. The effects of corporal punishment are then considered from the perspectives of learning theory, socialization theory, and the child's point of view. Her ecological-process model is then evaluated in light of these perspectives. Research directions and social policy implications are addressed.  相似文献   
1000.
Previous research has indicated that observers use differences between velocities and ratios of velocities to judge the depth within a moving object, although depth cannot in general be determined from these quantities. In four experiments we examined the relative effects of velocity difference and velocity ratio on judged depth within a transparent object that was rotating about a vertical axis and translating horizontally, examined the effects of the velocity difference for pure rotations and pure translations, and examined the effect of the velocity difference for objects that varied in simulated internal depth. Both the velocity difference and the velocity ratio affected judged depth, with difference having the larger effect. The effect of velocity difference was greater for pure rotations than for pure translations. Simulated depth did not affect judged depth unless there was a corresponding change in the projected width of the object. Observers appear to use the velocity difference, the velocity ratio, and the projected width of the object heuristically to judge internal object depth, rather than using image information from which relative depth could potentially be recovered.  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