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   86681篇
  免费   3526篇
  国内免费   36篇
  2020年   1024篇
  2019年   1233篇
  2018年   1710篇
  2017年   1812篇
  2016年   1861篇
  2015年   1323篇
  2014年   1598篇
  2013年   7298篇
  2012年   2921篇
  2011年   2944篇
  2010年   1825篇
  2009年   1835篇
  2008年   2586篇
  2007年   2578篇
  2006年   2317篇
  2005年   1997篇
  2004年   1988篇
  2003年   1894篇
  2002年   1852篇
  2001年   2762篇
  2000年   2598篇
  1999年   1986篇
  1998年   945篇
  1997年   853篇
  1996年   899篇
  1995年   839篇
  1994年   816篇
  1993年   825篇
  1992年   1661篇
  1991年   1515篇
  1990年   1556篇
  1989年   1429篇
  1988年   1449篇
  1987年   1331篇
  1986年   1332篇
  1985年   1344篇
  1984年   1149篇
  1983年   1049篇
  1979年   1233篇
  1978年   891篇
  1975年   992篇
  1974年   1104篇
  1973年   1160篇
  1972年   941篇
  1971年   894篇
  1970年   781篇
  1969年   810篇
  1968年   1025篇
  1967年   918篇
  1966年   806篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
This paper presents 10 general observations about current software for instruction in psychology and examines selected examples employing four instructional techniques for computer-assisted instruction. We find that although the number of programs employing experimental or data-oriented approaches to psychology as a primary vehicle of instruction is increasing, tutorial drill and practice programs and gaming are not well represented.  相似文献   
992.
A method of constructing digital filters is outlined and illustrated in an application for research uses of EEG feedback. The method is based on least squares estimation with geometric weighting. Old data in the time series are discounted according to age, as new data arrive. Recurrence relations are used, allowing the computations to be performed in real time. A FORTRAN digital filter is formulated that simultaneously estimates (1) the spectral power in a band centered at a target frequency, (2) the total spectral power, and (3) the dominant frequency.  相似文献   
993.
994.
995.
The synchronous paradigm is a model of families whose members remain uninvolved and disconnected from each other yet somehow maintain relatively unvarying or even rigid patterns of behavior. In the synchronous paradigm, calm agreement and harmonious unity of action are valued above all. The concept of synchronous operation was first formulated by Constantine to solve certain theoretical problems growing out of the work of Kantor and Lehr. The theory has been elaborated upon through linkages established with other clinical and theoretical models of family dysfunction. Clinical experience in treating synchronous families has now contributed more detailed and practical understanding. Clinically, disabled synchronous families may present as bland, boring, or even death-like. They may have considerable difficulty accommodating to necessary developmental changes or to the demands of life crises, employing a variety of strategies to maintain the appearance of synchrony at the expense of adaptation. Their ability to ignore change and to absorb interventions can tax the abilities of even the most creative and energetic therapist. On the other hand, the quiet efficiency of the family and the social sensitivity of its members can be strong assets. Awareness of their strengths and special vulnerabilities can help the family therapist work more effectively with synchronous families.  相似文献   
996.
M Kaffman 《Family process》1985,24(1):113-127
This article is a personal statement of my beliefs and practice of family therapy, from the time I first introduced the concept to Israel over twenty years ago to the present day. It reflects the evolution and changes in my clinical work against the background of major developments in the field of family therapy.  相似文献   
997.
998.
999.
1000.
Personal space zones were examined amongst Arab and American university students by jointly varying degree of acquaintanceship and sex of subject. Overall, there were few differences between Arab and American males. Arab females, however, showed dramatic differences in comparison to American males and females and to Arab males. Arab females kept male friends very far away relative to female friends. Indeed, male friends were kept almost as far away as male strangers.  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