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   2752篇
  免费   149篇
  2023年   17篇
  2022年   14篇
  2021年   35篇
  2020年   75篇
  2019年   73篇
  2018年   90篇
  2017年   85篇
  2016年   97篇
  2015年   83篇
  2014年   85篇
  2013年   301篇
  2012年   142篇
  2011年   129篇
  2010年   76篇
  2009年   65篇
  2008年   122篇
  2007年   146篇
  2006年   111篇
  2005年   105篇
  2004年   104篇
  2003年   97篇
  2002年   84篇
  2001年   40篇
  2000年   38篇
  1999年   36篇
  1998年   35篇
  1997年   35篇
  1996年   34篇
  1995年   31篇
  1994年   33篇
  1993年   31篇
  1992年   28篇
  1991年   26篇
  1990年   27篇
  1989年   24篇
  1988年   23篇
  1987年   21篇
  1986年   24篇
  1985年   22篇
  1984年   21篇
  1983年   19篇
  1982年   34篇
  1981年   25篇
  1980年   15篇
  1979年   22篇
  1978年   18篇
  1977年   13篇
  1976年   20篇
  1975年   13篇
  1974年   17篇
排序方式: 共有2901条查询结果,搜索用时 15 毫秒
91.
92.
The experiment was designed to test differential predictions derived from dual-coding and depth-of-processing hypotheses. Subjects under incidental memory instructions free recalled a list of 36 test events, each presented twice. Within the list, an equal number of events were assigned to structural, phonemic, and semantic processing conditions. Separate groups of subjects were tested with a list of pictures, concrete words, or abstract words. Results indicated that retention of concrete words increased as a direct function of the processing-task variable (structural < phonemic 相似文献   
93.
An inexpensive system for on-line coordinate plotting is described. Users with access to a computer running ALGOL or FORTRAN, and equipped with analog-to-digital converters, can build the system for less than $50. The program is readily modified for the individual user’s requirements, and interactive features allow data correction and analysis to be carried out during coordinate plotting, with operators warned of plotting errors as they occur.  相似文献   
94.
Sex-role stereotyping in the linguistic structure of Holland's Self-Directed Search (SDS) was examined. A revised SDS was constructed involving the removal of all masculine-toned terminology from the items and test-taking instructions, as well as the affixing of the letters M/F and F/M to all occupational titles and terms commonly perceived as gender specific. Subjects were 266 lower division female students at a large state university; 133 subjects completed the standard SDS and 133 completed the revised form. Following SDS assessment, subjects rated their inventory with respect to perceived sexual equality. Comparison variables included: daydreams, occupations' scores, summary codes, and subsequent occupational choices. Occupational choices at each stage of the assessment process were classified as nontraditional or traditional choices for women. Results indicated that across all indices derived from the standard and revised versions of the SDS, there were no significant differences in these subjects' performance. The subjects did perceive the two inventories differently, with subjects completing the standard SDS viewing it as slightly less equitable.  相似文献   
95.
Little attention has been given to teaching adaptive community skills to retarded persons. In this study, five retarded male students were taught basic pedestrian skills in a classroom. Training was conducted on a model built to simulate city traffic conditions. Each subject was taught five specific skills involved in street crossing in sequence, viz. intersection recognition, pedestrian-light skills, traffic-light skills, and skills for two different stop-sign conditions. Before, during, and after training, subjects were tested on generalization probes on the model and under actual city traffic conditions. Results of a multiple-baseline design across both subjects and behaviors indicated that after receiving classroom training on the skills, each subject exhibited appropriate pedestrian skills under city traffic conditions. In addition, training in some skills appeared to facilitate performance in skills not yet trained.  相似文献   
96.
Relatively low doses of alcohol produced large, significant, dose-related increases in the time required to recover foveal contrast sensitivity following bright light exposure. Nine subjects participated in a double-blind experiment involving three dose levels of alcohol (including placebo). The luminance parameters of the test were comparable to those encountered in practical situations such as driving. The alcohol-induced delay in glare recovery is probably retinal and lasts for several hours after drinking.  相似文献   
97.
98.
99.
100.
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