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   1371篇
  免费   32篇
  2022年   10篇
  2021年   10篇
  2020年   20篇
  2019年   20篇
  2018年   23篇
  2017年   31篇
  2016年   32篇
  2015年   24篇
  2014年   22篇
  2013年   161篇
  2012年   46篇
  2011年   51篇
  2010年   26篇
  2009年   23篇
  2008年   37篇
  2007年   48篇
  2006年   48篇
  2005年   40篇
  2004年   35篇
  2003年   43篇
  2002年   39篇
  2001年   31篇
  2000年   29篇
  1999年   25篇
  1998年   24篇
  1997年   17篇
  1996年   18篇
  1995年   21篇
  1994年   12篇
  1993年   12篇
  1992年   23篇
  1991年   17篇
  1990年   20篇
  1989年   13篇
  1988年   19篇
  1987年   22篇
  1986年   17篇
  1985年   16篇
  1984年   19篇
  1983年   21篇
  1982年   22篇
  1981年   18篇
  1980年   22篇
  1979年   23篇
  1978年   18篇
  1977年   17篇
  1976年   25篇
  1975年   19篇
  1974年   17篇
  1973年   12篇
排序方式: 共有1403条查询结果,搜索用时 15 毫秒
1.
2.
The Colorado Occupant Protection Project (COPP) intervention provided police with brief instruction concerning the importance of citations for drivers' failure to use child safety seats and special coupons to accompany citations. Coupons were exchangeable by drivers for a safety seat and brief training in its use, plus a waiver of the $50 citation fine. Over 4.5 years of archival records were employed, using an ABA design and a comparison community to evaluate the program. Few tickets were issued for nonuse of safety seats during the 3-year baseline in either community. Citations for nonuse of safety seats increased to over 50 per month during the intervention period at the test site, whereas rates remained essentially zero at the comparison site. After the COPP intervention was removed at the intervention site, citation rates for nonuse of safety seats decreased to about 15 per month. Differences between intervention conditions and settings were statistically significant. During the intervention, officers were 44 times more likely to write citations than were controls. Results suggested that a behavioral program can increase police citation writing for child protection purposes.  相似文献   
3.
In its early stages, Parkinson's disease (P.D.) may be difficult to distinguish from major depression (M.D.) leading to inappropriate management. Both illnesses are characterized by psychomotor retardation. The neurovegetative symptoms used to diagnose M.D. are not specific and in P.D. may be due to the physical illness itself. Currently, differentiation of the two disorders relies on subjective clinical observation. Improved diagnostic accuracy based on more objective data is needed. To this end, this study used computerized acoustic analysis to contrast speech patterns in P.D. and M.D. The sample consisted of 30 P.D. patients without depression or dementia, 30 patients with uncomplicated M.D., and 31 normal controls, each 60 years of age or over. Of the acoustic variables studied, M.D. patients had significantly reduced rates of speech compared with P.D. patients. The data suggest that this temporal measure of speech may be useful in the differentiation of P.D. and M.D.  相似文献   
4.
5.
6.
This article describes the development, reliability, and initial validation of the Tenure Scale. The scale was designed as an attitudinal predictor of turnover risk to be used for pre-employment selection. Two validation studies are reported. In study one, significant results were obtained between Tenure Scale scores and self report measures of: a) past and present job tenure; b) intentions to quit; c) job search behaviors; and d) intentions to remain committed to one's job. In study two, significant relationships were established between Tenure Scale scores and on-the-job measures of turnover risk, including work performance, absenteeism rates, and length of employment. No adverse impact was found against any protected group in study two. The relationship of these results with job turnover theory is discussed, and future validation research is suggested.Portions of this research study were presented at the 1988 Annual Conference of the Association of Human Resources Management and Organizational Behavior, Long Beach, California, October 26–29.  相似文献   
7.
8.
9.
Analyses of averaged auditory evoked responses to a list of 10 positive and 10 negative words led to the identification of a restricted region in the brain response which reliably discriminated between words differing in the semantic features positive and negative. These data support the view that word meanings are composed of more basic components or features and are not stored simply as dictionary items in the brain.  相似文献   
10.
Book Reviews     
The Psychological Record -  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