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   4879篇
  免费   192篇
  2021年   52篇
  2020年   101篇
  2019年   94篇
  2018年   153篇
  2017年   146篇
  2016年   151篇
  2015年   112篇
  2014年   105篇
  2013年   448篇
  2012年   189篇
  2011年   175篇
  2010年   104篇
  2009年   136篇
  2008年   135篇
  2007年   142篇
  2006年   120篇
  2005年   108篇
  2004年   98篇
  2003年   84篇
  2002年   89篇
  2001年   135篇
  2000年   103篇
  1999年   86篇
  1997年   42篇
  1996年   41篇
  1993年   46篇
  1992年   62篇
  1991年   74篇
  1990年   61篇
  1989年   59篇
  1988年   64篇
  1987年   60篇
  1986年   51篇
  1985年   60篇
  1984年   61篇
  1983年   47篇
  1982年   52篇
  1979年   57篇
  1978年   58篇
  1977年   51篇
  1976年   46篇
  1975年   64篇
  1974年   63篇
  1973年   56篇
  1972年   52篇
  1971年   54篇
  1969年   41篇
  1968年   54篇
  1967年   63篇
  1966年   43篇
排序方式: 共有5071条查询结果,搜索用时 15 毫秒
1.
The purpose of this study is to compare field investigative interviews of children (FIIC) with three different legal outcomes in child sexual abuse cases: (i) insufficient evidence to proceed (IEP); (ii) convictions; or (iii) acquittals by the court. One hundred FIIC were divided into one of the three outcome possibilities. Amongst the female interviewees older than 10 years, there were no cases of acquittals and the convicted cases were over-represented. The children's response to open questions was found to be the main difference between the three FIIC outcomes. The responses to these open questions were 1.9 and 2.3 times longer in the convicted cases compared to acquittals and IEP. Possible explanations for the result are discussed. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
2.
We investigated motivational and cognitive processes of behavior change with respect to mammography screening. One hundred forty-two women (ages 40 and older) recruited from three worksites answered a 41-item questionnaire consisting of statements based on constructs from the transtheoretical model of behavior change. Principal-components analysis identified two factors: a six-item component representing positive perceptions of mammography (Pros) and a six-item component representing avoidance of mammography (Cons). Analysis of variance showed that Pros, Cons, and a derived Decisional Balance measure (Pros minus Cons) were associated with stage of mammography adoption. Results are consistent with applications of the model to smoking cessation. The model is also discussed as it relates to other theories of behavior change and as a general strategy for analyzing perceptual data pertinent to health-related actions and intentions for behavioral change.  相似文献   
3.
4.
5.
6.
A growing literature has observed a significant reduction in pain sensitivity among hypertensive animals and humans. It is uncertain whether a reduced sensitivity to pain can be observed in nonnotensive individuals who go on to develop high blood pressure. Blood pressure (BP) was reassessed in one hundred fifteen 19-year-old boys initially tested at age 14, when they were also presented with a pain stimulus (mechanical finger pressure). Hierarchical regression analyses indicated that information regarding pain tolerance improved prediction of changes in systolic and diastolic blood pressure beyond that afforded by differences in BP at age 14, parental history of hypertension, and body mass index. These analyses suggest that pain sensitivity may be associated with physiological processes involved in the development of sustained high blood pressure.  相似文献   
7.
8.
9.
10.
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