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   5709篇
  免费   297篇
  国内免费   2篇
  2023年   59篇
  2022年   48篇
  2021年   75篇
  2020年   130篇
  2019年   175篇
  2018年   211篇
  2017年   229篇
  2016年   206篇
  2015年   180篇
  2014年   187篇
  2013年   615篇
  2012年   306篇
  2011年   339篇
  2010年   216篇
  2009年   218篇
  2008年   277篇
  2007年   266篇
  2006年   223篇
  2005年   193篇
  2004年   181篇
  2003年   186篇
  2002年   158篇
  2001年   76篇
  2000年   57篇
  1999年   57篇
  1998年   72篇
  1997年   63篇
  1996年   63篇
  1995年   46篇
  1994年   58篇
  1993年   43篇
  1992年   42篇
  1991年   41篇
  1990年   48篇
  1989年   25篇
  1988年   29篇
  1987年   30篇
  1986年   25篇
  1985年   45篇
  1984年   39篇
  1982年   46篇
  1981年   30篇
  1980年   39篇
  1979年   37篇
  1978年   36篇
  1977年   42篇
  1976年   35篇
  1975年   31篇
  1974年   22篇
  1973年   26篇
排序方式: 共有6008条查询结果,搜索用时 15 毫秒
151.
152.
153.
154.
On each trial, subjects were played a dichotic pair of syllables differing in the consonant (/ba/, /da/, /ga/) or in the vowel (/ba/, /b?/, /bi/). The pair of syllables was preceded by a melody, or a sentence, and followed by the same or a different melody, or sentence. Subjects either had to retain the first piece of additional material or were free to ignore it. The different combinations of phonemic contrast, additional material, and instruction concerning the additional material were used in different sessions. In each case, the main task of the subjects was to respond to the presence or the absence of the target /ba/ on the ear previously indicated. There was no effect of context on relative ear accuracy, but the right-ear advantage observed for consonants in response latency when subjects retained a sentence gave way to a small nonsignificant left-ear advantage when subjects retained a melody. Right-ear advantage in response latencies was also observed for vowels in the verbal context, but the contextual effect, although in the same direction as for consonants, was very slight. The implications of contextual effects for a theory of the determinants of the auditory laterality effects are discussed.  相似文献   
155.
While measurement of temperature as an index of circadian rhythmicity is not a difficult task with infrahuman subjects, long-term monitoring of deep body temperature with human subjects poses numerous measurement and safety problems. A preparation is described that is highly accurate, inexpensive, chronic, comfortable, and eliminates safety problems associated with more traditional methods of temperature measurement.  相似文献   
156.
157.
To investigate the development of verbal rehearsal strategies and selective attention in learning disabled children, Hagen's Central-Incidental task was administered to younger learning disabled (M CA = 8.68 years) and normal (M CA = 8.62 years) boys in Experiment 1 and to intermediate (M CA = 10.18 years) and older (M CA = 13.48 years) learning disabled boys in Experiment 2. Also, in Experiment 2, an experimentally induced verbal rehearsal condition was included to determine its effects on serial recall and selective attention performance. In Experiment 1, the serial postion curve of the normals revealed both a primacy and a recency effect, whereas that of the learning disabled revealed a recency effect only. In Experiment 2, both the intermediate and the older learning disabled exhibited both primacy and recency effects under both standard and rehearsal conditions. A developmental analysis of central recall for the three learning disabled groups revealed constant age-related increases in overall central recall and in primacy recall. That the normals recalled more central, but not more incidental, information than the learning disabled in Experiment 1 suggests that the learning disabled are deficient in selective attention. Correlational findings suggest that the selective attention of the learning disabled improves with age. The results were interpreted as support for the hypothesis of a developmental lag in the learning disabled population.  相似文献   
158.
On the basis of recent findings showing that physical attractiveness serves as an important evaluative cue in person perception, the present paper reviews evidence which indicates that physical attractiveness differentially affects the judgments of males and females. Recent research seems to indicate that the physical-attractiveness stereotype — which holds that attractive individuals are more positively evaluated across a wide range of dimensions than unattractive individuals — is more potent when applied to women than to men. The origins of this differential stereotyping are discussed in terms of the historically defined roles of men and women in our society. In addition, the paper discusses the implications of the physical-attractiveness stereotype for the general problem of sex-role stereotyping.  相似文献   
159.
One of the standard approaches to the metaphysics of personal identity has some counter‐intuitive ethical consequences when combined with maximising consequentialism and a plausible (though not uncontroversial) doctrine about aggregation of consequences. This metaphysical doctrine is the so‐called ‘multiple occupancy’ approach to puzzles about fission and fusion. It gives rise to a new version of the ‘utility monster’ problem, particularly difficult problems about infinite utility, and a new version of a Parfit‐style ‘repugnant conclusion’. While the article focuses on maximising consequentialism for simplicity, the problems demonstrated apply more widely to a range of ethical views, especially flavours of consequentialism. This article demonstrates how these problems arise, and discusses a number of options available in the light of these problems for a consequentialist tempted by a multiple occupancy metaphysics.  相似文献   
160.
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