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   60664篇
  免费   1280篇
  国内免费   3篇
  61947篇
  2020年   558篇
  2019年   748篇
  2018年   978篇
  2017年   1010篇
  2016年   1082篇
  2015年   796篇
  2014年   929篇
  2013年   4321篇
  2012年   1737篇
  2011年   1899篇
  2010年   1193篇
  2009年   1161篇
  2008年   1679篇
  2007年   1695篇
  2006年   1543篇
  2005年   1362篇
  2004年   1258篇
  2003年   1189篇
  2002年   1294篇
  2001年   1970篇
  2000年   1943篇
  1999年   1469篇
  1998年   693篇
  1997年   613篇
  1996年   613篇
  1993年   551篇
  1992年   1240篇
  1991年   1144篇
  1990年   1125篇
  1989年   1028篇
  1988年   1012篇
  1987年   966篇
  1986年   1041篇
  1985年   1050篇
  1984年   879篇
  1983年   804篇
  1982年   561篇
  1981年   562篇
  1979年   942篇
  1978年   671篇
  1975年   765篇
  1974年   815篇
  1973年   912篇
  1972年   768篇
  1971年   726篇
  1970年   648篇
  1969年   668篇
  1968年   856篇
  1967年   775篇
  1966年   652篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
761.
How can we explain that an assertion on something perceived can be understood in the same manner by somebody who cannot perceive that scene? This problem bases the interest in computational linguistics in how listener modeling could possibly be harmonized with reference semantics. Mental images substituting real perception appear as a way out. The architecture of the listener model has to be adapted to the creation and use of such pictorial data structures. Furthermore, the relation between the latter and a verbal (i. e., propositional) representation must be understood. The resulting architecture of a listener model with reference semantics can be employed to solve communicational problems from three general classes in a better way, as is demonstrated by an example implementation.  相似文献   
762.
763.
COMMENTARY     
  相似文献   
764.
765.
766.
We evaluated the effects of two daily activity schedules on 2 participants' rates of aberrant behavior and their compliance. Functional analysis identified the operant function of the participants' aberrant behaviors to be escape from tasks. Participants were taught to use stimuli contained in daily schedules, and were tested based on a modified stimulus-equivalence model that consisted of flash cards and activity schedules comprised of words or photographs that corresponded to the participants' daily activities. On pretests, the participants demonstrated simple and conditional discriminations with the photographs but not with the printed stimuli. A time-delay procedure was used to teach the participants to name the flash cards. Following training, the printed activity schedules corresponded to lower rates of problem behavior and higher rates of compliance than the photographic activity schedules. Performance on posttests indicated the establishment of functional classes of stimuli involving the flash cards and activity schedules even though this type of correspondence was not directly trained.  相似文献   
767.
Many behaviors are performed less frequently than intended because they require knowledge and skill to overcome behavioral barriers. This experiment tested effects of two factors, direct experience and message frame, that were hypothesized to affect men's intention to perform the testicle self-exam for cancer (TSE) and their actual exam performance, in part by affecting their knowledge and beliefs about overcoming TSE performance barriers. Men's experience performing the TSE on a life-like model and the frame (negative, positive, or neutral) of the recommendation promoting the exam were manipulated factorially. Consistent with prediction, men who practiced (vs. did not practice) the self-exam: (a) endorsed stronger beliefs about behavior-specific knowledge (e.g., ability to imagine a lump), (b) held more positive intention, and (c) translated that intention more consistently into self-reported action, in part because their behavior-specific knowledge increased their tendency to act on their intention. Consistent with action phase theory (Gollwitzer, 1990), intention related more strongly to behavior-specific beliefs than to general, long-term beliefs, and more strongly than attitude related to behavior-specific beliefs. These findings have practical and theoretical implications for promoting healthful and other intended behaviors.  相似文献   
768.
In this contribution we show how neuroimaging methods can augment behavioural methods to discover processing stages. Event Related Brain Potentials (ERPs), Brain Electrical Source Analysis (BESA) and regional changes in cerebral blood flow (rCBF) do not necessarily require behavioural responses. With the aid of rCBF we are able to discover several cortical and subcortical brain systems (processors) active in selective attention and memory search tasks. BESA describes cortical activity with high temporal resolution in terms of a limited number of neural generators within these brain systems. The combination of behavioural methods and neuroimaging provides a picture of the functional architecture of the brain. The review is organized around three processors: the Visual, Cognitive and Manual Motor Processors.  相似文献   
769.
770.
The purpose of this study was both to determine if the Impostor Phenomenon (IP) can be reliably and validly assessed in a Korean context and if so, evaluate the construct within the context of Jungian typology and the 5-factor model of personality. A sample of 654 Korean men and women were selected from 4 major Korean cities and administered the Clance Impostor Phenomenon Scale (CIPS; Clance & Imes, 1978) along with the Myers-Briggs Type Indicator (MBTI, Form G; Myers & McCaulley, 1985) and NEO Personality Inventory-Revised (NEO-PI-R; Costa & McCrae, 1992). Results indicated that the CIPS was very reliable, and the pattern of correlates suggested impostors to be introverted types on the MBTI. Results with the NEO-PI-R showed impostors to be very high on neuroticism and low on conscientiousness. This pattern of correlates is similar to other performance-inhibiting constructs such as fear of success and fear of failure. It was argued that IP be construed more as a motivational style than as a distinct clinical syndrome. The IP seems to be less pervasive in Korea than America and these cross-cultural implications were discussed.  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