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   959篇
  免费   65篇
  国内免费   1篇
  1025篇
  2023年   12篇
  2022年   16篇
  2021年   21篇
  2020年   23篇
  2019年   39篇
  2018年   49篇
  2017年   40篇
  2016年   38篇
  2015年   36篇
  2014年   29篇
  2013年   100篇
  2012年   58篇
  2011年   46篇
  2010年   25篇
  2009年   38篇
  2008年   45篇
  2007年   29篇
  2006年   29篇
  2005年   21篇
  2004年   35篇
  2003年   26篇
  2002年   27篇
  2001年   15篇
  2000年   18篇
  1999年   14篇
  1998年   11篇
  1997年   10篇
  1996年   7篇
  1995年   9篇
  1994年   9篇
  1993年   10篇
  1992年   7篇
  1989年   14篇
  1988年   7篇
  1987年   4篇
  1986年   5篇
  1984年   5篇
  1983年   5篇
  1982年   8篇
  1981年   7篇
  1978年   8篇
  1977年   4篇
  1976年   6篇
  1975年   4篇
  1973年   5篇
  1970年   4篇
  1969年   3篇
  1968年   4篇
  1967年   5篇
  1966年   6篇
排序方式: 共有1025条查询结果,搜索用时 0 毫秒
11.
12.
WHO IS HAPPY?   总被引:6,自引:0,他引:6  
A flood of new studies explores people's subjective well-being (SWB) Frequent positive affect, infrequent negative affect and a global sense of satisfaction with life define high SWB These studies reveal that happiness and life satisfaction are similarly available to the young and the old, women and men, blacks and whites, the rich and the working-class. Better clues to well-being come from knowing about a person's traits, close relationships, work experiences, culture, and religiosity. We present the elements of an appraisal-based theory of happiness that recognizes the importance of adaptation, cultural world view, and personal goals  相似文献   
13.
14.
15.
A two-part system for digital measurement of such diverse response parameters as latency, pulse width, amplitude, and events per unit time is described. The mainframe consists of counters with light-emitting diode (LED) numeric readouts and a quartz crystal controlled internal time base. It also contains all power supply requirements for both the mainframe electronics and the second part of the system, the plug-ins. Each plug-in is designed to use the main unit counters, timers, readouts, and power supplies to measure the desired parameter. Thus, each numeric readout channel of the mainframe may be used to measure various parameters simply by changing the plug-in attached to it. The unit has proved to be very useful in reducing experimenter error in measuring response parameters in classical nictitating membrane conditioning.  相似文献   
16.
In previous work, investigators have found a relationship between marital discord and childhood conduct problems (aggression) in clinic samples. Given the wide variability of aggression found among hyperactive children,it would follow from previous work that child aggression may be associated with marital discord in a hyperactive population. This hypothesis was tested in a sample of 23 boys (ages 5 to 8) diagnosed as attention deficit with hyperactivity. Aggressive behaviors were tracked by the children's teachers for 12 school days. Parental and teacher ratings of conduct problems were also obtained. Additionally, the auditory version of the laboratory Continuous Performance Test was administered. Marital adjustment, overt hostility, and conflict tactics, as reported by the mothers, were not significantly correlated with any of the measures of aggression or conduct problems. In other words, marital discord in families with a hyperactive boy did not explain differential rates of aggressive behavior despite definite variability in both the marital and child behavioral measures. Marital discord was marginally related to severity of attentional deficit on the Continuous Performance Test. The results underscore the need for caution in attempting to extend findings from a general population (i.e., undifferentiated clinicreferred children) to a specific diagnostic subgroup (i.e., attention-deficit hyperactive children).  相似文献   
17.
18.
This article proposes a model that integrates various factors influencing early childhood stuttering. The factors interact in a synergistic manner and can be subsumed under three macrofactors: physiological, psycholinguistic, and psychosocial. Such a model can be clinically applied toward an integrated approach to the assessment and treatment of the young stutterer.  相似文献   
19.
In two 6-month longitudinal studies of intellectually advanced preschool children, letter naming time and backward digit span were moderately good predictors of concurrent reading achievement (PIAT Reading Recognition Score). None of the remaining measures in a battery of standard cognitive indices, including Stanford-Binet MA, was associated with reading achievement. The results of cross-lagged correlation analysis of data from one of the two samples suggested that individual differences in time to access name codes for visual stimuli predict, but are not a consequence of, individual differences in reading achievement. The results of the cross-lagged analysis for the second sample were inconclusive. As a whole, the results are consistent with findings from other populations indicating that both short term memory span and efficiency of retrieval from long term memory are related to reading ability. The results also indicate, however, that the relationship between retrieval efficiency and reading achievement in precocious readers cannot be described by extrapolation of threshold estimates from the performance of older, unselected groups of readers.  相似文献   
20.
A simplified technique is described for obtaining lateralization of visual input with prolonged viewing. This technique is based on the presence of constant normal lateral limits for horizontal rotation of the eyes with reference to the head. With head movement prevented by use of a standard bite bar, and the eyes rotated to the left and held at their lateral limit, the temporal half of the visual field of the left eye may be used for lateralized input to the right hemisphere or vice versa for input to the left hemisphere. Any form of visual stimuli or visually monitored task can be used if confined within one of the extreme temporal hemifields. In comparison to previous methods, this technique is technically simple, inexpensive, without significant risk or discomfort to the subject, readily applicable to normal and various brain-lesioned subjects, and permits prolonged in-depth viewing. An alternative version of this technique uses a stabilized spectacle frame fitted with adjustable central occluders set to allow vision through only one or both of the extreme temporal hemifields.  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