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   61160篇
  免费   2488篇
  国内免费   19篇
  63667篇
  2020年   583篇
  2019年   772篇
  2018年   1042篇
  2017年   1068篇
  2016年   1162篇
  2015年   829篇
  2014年   991篇
  2013年   4559篇
  2012年   1840篇
  2011年   1995篇
  2010年   1240篇
  2009年   1212篇
  2008年   1775篇
  2007年   1775篇
  2006年   1621篇
  2005年   1419篇
  2004年   1336篇
  2003年   1259篇
  2002年   1342篇
  2001年   2004篇
  2000年   1978篇
  1999年   1493篇
  1998年   710篇
  1997年   631篇
  1996年   631篇
  1993年   569篇
  1992年   1259篇
  1991年   1155篇
  1990年   1149篇
  1989年   1040篇
  1988年   1031篇
  1987年   974篇
  1986年   1045篇
  1985年   1063篇
  1984年   892篇
  1983年   807篇
  1982年   575篇
  1981年   568篇
  1979年   950篇
  1978年   672篇
  1975年   765篇
  1974年   828篇
  1973年   915篇
  1972年   778篇
  1971年   730篇
  1970年   649篇
  1969年   671篇
  1968年   862篇
  1967年   781篇
  1966年   653篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
The major thesis of this philosophic treatise is that unless the counselor realizes in his own life the full import of the search for meaning and self-understanding, he will be unable to empathize adequately with the struggles of another human being who likewise seeks to realize his highest potential. Hindering our self-discovery are the problems of meaninglessness, alienation, and the loss of our freedom. The path toward breaking out of our insulated selves is: (a) to accept fully, on a personal level, a sense of responsibility for what we are, and (b) to realize that self-fulfillment occurs within a social context. The former involves a sense of personal integrity and the latter gives a contextual frame of reference to our search for meaning. The path to self-understanding is difficult and threatening, but as the counselee perceives—on both the intuitive and operational levels—the counselor's sincerity in his own quest for fulfillment, the goals we seek to achieve in the counseling relationship will be facilitated.  相似文献   
994.
995.
If a depth interval is matched to an egocentric distance, the disparity required increases with convergence by 50 to 130% (depth micropsia). If a depth interval is matched to a frontal extent of constant visual angle, disparity again increases with convergence, but the proportion increase is slightly smaller. This difference is attributed to the previously established effect of convergence on perceived size (size micropsia).  相似文献   
996.
Two groups of 12 Ss were shown tachistoscopically 4 letters and 4 numbers. Within these alpha-numeric sequences, three variables were systematically manipulated: grouping of items, initial item, and familiarity of the letter sequences. One group of Ss reported first letters then numbers from each sequence; the other group reported numbers then letters. The results indicated that grouping, redundancy, and order of report had significant effects on letter accuracy but not on number accuracy. These effects were interpreted in terms of processing, particularly the use of spatial and identity information during recognition.  相似文献   
997.
Demand characteristics were studied in a simple situation in which observers made size and distance estimates of stimuli presented on a two-dimensional linear perspective drawing. Half the Ss were asked questions stressing phenomenal report: The other half were asked the same questions preceded by instructions stressing the objective nature of the stimulus configuration but requesting, nonetheless, phenomenal report. Instructions resulted in a significantly greater perspective size illusion but did not affect the distance estimates. No meaningful correlations between size and distance estimates were found.  相似文献   
998.
Histological procedures are necessary in brain stimulation or lesion work to determine the neural area which has been stimulated or damaged. Preparation of brain tissue often involves embedding and staining techniques that require specialized training, and the expense of a technician and a large assortment of special apparatus and supplies. In addition, the results of such techniques are unavailable for at least several days. A photographic method, which requires little special skill and a minimal amount of apparatus, is described here. Results can be available within minutes after the subject is sacrificed. This method has been shown to be adequate for the gross determination of lesion boundaries and electrode or cannula tip loci in brains of rats, cats, and squirrel monkeys.  相似文献   
999.
1000.
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