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   5070篇
  免费   100篇
  国内免费   86篇
  2024年   2篇
  2023年   25篇
  2022年   23篇
  2021年   39篇
  2020年   61篇
  2019年   45篇
  2018年   59篇
  2017年   59篇
  2016年   50篇
  2015年   43篇
  2014年   53篇
  2013年   164篇
  2012年   46篇
  2011年   30篇
  2010年   31篇
  2009年   50篇
  2008年   50篇
  2007年   54篇
  2006年   49篇
  2005年   46篇
  2004年   31篇
  2003年   42篇
  2002年   24篇
  2001年   24篇
  2000年   14篇
  1999年   17篇
  1998年   12篇
  1996年   8篇
  1995年   8篇
  1994年   4篇
  1993年   7篇
  1992年   4篇
  1990年   4篇
  1989年   4篇
  1988年   6篇
  1987年   4篇
  1986年   1篇
  1985年   335篇
  1984年   399篇
  1983年   291篇
  1982年   308篇
  1981年   345篇
  1980年   358篇
  1979年   339篇
  1978年   366篇
  1977年   288篇
  1976年   266篇
  1975年   258篇
  1974年   273篇
  1973年   235篇
排序方式: 共有5256条查询结果,搜索用时 46 毫秒
221.
222.
223.
224.
Previous research has demonstrated the relationship of work stress to indices of job strain, as well as underscoring the importance of moderating variables. In the present study of a mining organization it was hypothesized that personnel associated with actual mining operations would demonstrate stress-strain relationships different from those associated with administrative and staff work. Measures of stress and strain were obtained from management staff of blue-collar and white-collar groups to assess the moderating influence of collar color. Results strongly support collar color as a moderator variable. In particular, the two groups differ significantly with respect to how role conflict, job security, quantitative work load, variation in work load, and utilization of skills impact various strains. The effect of job function on stress and strain and possible practical implications of these results are discussed.  相似文献   
225.
226.
227.
228.
A previous study of the habit reversal treatment of nailbiting was extended by using more subjects (97) and a comparison with an alternative method (negative practice). Negative practice reduced nailbiting episodes by about 60% whereas habit reversal reduced nailbiting episodes by about 99% throughout the 5-month follow-up.  相似文献   
229.
Forty-five children with night wetting only (NW) and 30 children with day and night wetting (DNW) were randomly assigned to 2 treatment groups: alarm only and alarm preceded by 4 weeks of retention control training (R.C.T.). Fewer children became dry at night in the DNW group than the NW group and DNW children relapsed earlier following treatment. The enuresis alarm was far superior to R.C.T. in reducing night wetting in both enuretic groups. It also reduced day wetting in some of the DNW children. Children who became dry in the NW group did not show significant changes in functional bladder capacity. Although changes in functional bladder capacity were seen in the DNW children who became dry, changes were only noticeable once dryness had been achieved.  相似文献   
230.
Pedestrian-skills training procedures were compared using 30 mentally retarded institutionalized adults. Ten subjects were randomly assigned to a no-treatment control group and ten subjects were assigned to each of two modes of pedestrian-skills training. The training methods included a form of individualized classroom training consisting of the practice of correct behavior using movable figures on a scale model of an intersection, vs independence training which emphasized self-evaluation of performance, social reinforcement, sign recognition and the utilization of a mock-up of an intersection on the hospital grounds. Data were taken on sign recognition, verbal and performance based responses to classroom training of pedestrian skills, performance of skills at an intersection on the hospital grounds, and performance of pedestrian skills in the community. Independence training proved to be significantly more effective than no treatment or classroom training. In addition, classroom training proved to be significantly more effective than no treatment at all.  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