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   25752篇
  免费   945篇
  国内免费   9篇
  26706篇
  2018年   356篇
  2017年   373篇
  2016年   398篇
  2015年   286篇
  2014年   350篇
  2013年   1883篇
  2012年   628篇
  2011年   678篇
  2010年   462篇
  2009年   421篇
  2008年   648篇
  2007年   605篇
  2006年   569篇
  2005年   494篇
  2004年   498篇
  2003年   507篇
  2002年   503篇
  2001年   654篇
  2000年   654篇
  1999年   519篇
  1998年   271篇
  1997年   290篇
  1996年   282篇
  1995年   266篇
  1992年   500篇
  1991年   464篇
  1990年   462篇
  1989年   430篇
  1988年   447篇
  1987年   413篇
  1986年   453篇
  1985年   447篇
  1984年   388篇
  1983年   341篇
  1982年   260篇
  1981年   270篇
  1979年   416篇
  1978年   337篇
  1977年   290篇
  1976年   305篇
  1975年   346篇
  1974年   440篇
  1973年   470篇
  1972年   349篇
  1971年   371篇
  1970年   336篇
  1969年   365篇
  1968年   435篇
  1967年   404篇
  1966年   416篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
Conditioned response (CR) rate and development of CR latency, rise time, and airpuff attenuation were examined for V- and C-form responders using two nonspecific command words, do and don't, as conditioned stimuli (CSs) in single-cue, double-cue, and differential eyelid conditioning. In both single-cue and differential conditioning, regardless of the command word used to signal the unconditioned stimulus (UCS), the Vs produced a higher response rate and learned a better UCS-attenuating response topography than the Cs. However, in a double-cue conditioning paradigm in which both command words were presented alone on different trials and reinforced, response latency was longer and puff attenuation poorer among Vs than when the UCS was signaled by a unique cue. In contrast, adding a second reinforced cue actually enhanced the development of puff-avoidant CR topographies among Cs compared to single-cue conditioning. These results and others indicate that response topography development is to some extent a labile process that can be biased toward either good or poor puff-avoidant properties and that the factors responsible for influencing CR topography differ for Vs and Cs.  相似文献   
994.
This article presents a model for training counselors to help counselees in the process of making decisions. Three ineffective decision strategies (avoidance, excessive caution, and impulse) are explained and illustrated. An effective decision-helping approach that includes processing decisions, relating values to process, and relating actions to beliefs is presented. The authors contend that in order to produce satisfactory and adequate decisions, deeply rooted affective influences as well as logic and information must be dealt with.  相似文献   
995.
996.
997.
A mathematical model, based on additive subcomponents of grouping, subitizing and adding, was derived to account for quantification latencies of three-dimensional block arrangements. Subitizing is the process that people use to directly quantify a small number of objects without counting. It was found that most people consistently subitized up to four blocks. With more than four blocks, people resorted to grouping and adding, and the model was able to account for these data. The structural variables of compactness, symmetry, linearity, and planarity were shown to have small effects on quantification latencies relative to the large effect of number of blocks. Of these structural variables, compactness had the largest effect, and in terms of the model, it is suggested that visual structure had its effect on the perceptual grouping subcomponent.  相似文献   
998.
999.
Consequences for a new target as a function of noncooperation was investigated in the instigative aggression paradigm. Subjects instigated partners to aggress against an opponent by suggesting what shock intensity to deliver. The partner was either cooperative (i.e., complied with the suggestion) or noncooperative (i.e., refused to set high shocks). Subsequently, subjects were given the opportunity to be directly aggressive by actually setting the shocks themselves. During this phase a new target who was nonprovocative was introduced. Subjects aggressed alone, in the presence of their partner, or in the presence of a new person. Results revealed that noncooperation reduced the level of instigative aggression and carried over to the second phase of the experiment. Subjects who had had cooperative partners were more aggressive toward the new target than were subjects who had had noncooperative partners. The presence or absence of the partner was not significant.  相似文献   
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