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   19112篇
  免费   892篇
  国内免费   31篇
  2020年   261篇
  2019年   285篇
  2018年   415篇
  2017年   422篇
  2016年   430篇
  2015年   321篇
  2014年   364篇
  2013年   1602篇
  2012年   665篇
  2011年   745篇
  2010年   441篇
  2009年   411篇
  2008年   554篇
  2007年   561篇
  2006年   469篇
  2005年   415篇
  2004年   412篇
  2003年   382篇
  2002年   405篇
  2001年   734篇
  2000年   735篇
  1999年   494篇
  1998年   213篇
  1997年   205篇
  1996年   170篇
  1995年   155篇
  1993年   162篇
  1992年   390篇
  1991年   343篇
  1990年   363篇
  1989年   352篇
  1988年   329篇
  1987年   303篇
  1986年   331篇
  1985年   315篇
  1984年   263篇
  1983年   224篇
  1981年   156篇
  1979年   209篇
  1978年   185篇
  1975年   202篇
  1974年   256篇
  1973年   216篇
  1972年   212篇
  1971年   174篇
  1970年   156篇
  1969年   204篇
  1968年   208篇
  1967年   172篇
  1966年   182篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
1.
Editorial     
Philip Hefner 《Zygon》1991,26(1):3-5
  相似文献   
2.
Adult-child interactions during stressful medical procedures were investigated in 43 pediatric patients videotaped during a venipuncture procedure in the course of cancer treatment. Relations among six adult behavior categories (explain, distract, command to engage in coping behavior, give control to the child, praise, and criticize/threat/bargain) and three child behavior categories (momentary distress, cry/scream, and cope) were examined using correlational and sequential analysis. Results indicated that adult distraction resulted in increased child coping and reduced momentary distress and crying. Adult explanations, although a likely response to child distress and crying, did not result in a reduction of these behaviors. Attempts to give the child control reduced child crying. Implications for clinical interventions during painful medical procedures are discussed.  相似文献   
3.
We describe three experiments testing treatments to promote the performance of health-protective dental behaviors. Subjects included 55 women from an introductory psychology course (Experiment 1), 45 men and women (Experiment 2), and 81 older-than-average students identified as at risk for gum disease (Experiment 3). The interventions, derived from social cognitive theory, included health education, skills training, and self-monitoring. In each study, we examined the contribution of additional treatment components, including social support (Experiment 1), intensive contact (Experiment 2), and flexible goal setting (Experiment 3). Across experiments, the behavioral results were remarkably similar: Subjects exhibited excellent adherence while in the study but, at follow-up, reported behavior that differed little from baseline. We discuss parallels between attempts to promote health-protective dental behaviors and other health-promotion programs, and we describe different perspectives from which to address the problem of creating healthy habits.  相似文献   
4.
5.
6.
7.
8.
9.
The authors tested effects of a 10-week group cognitive-behavioral stress management intervention among 100 women newly treated for Stage 0-II breast cancer. The intervention reduced prevalence of moderate depression (which remained relatively stable in the control condition) but did not affect other measures of emotional distress. The intervention also increased participants' reports that having breast cancer had made positive contributions to their lives, and it increased generalized optimism. Both remained significantly elevated at a 3-month follow-up of the intervention. Further analysis revealed that the intervention had its greatest impact on these 2 variables among women who were lowest in optimism at baseline. Discussion centers on the importance of examining positive responses to traumatic events--growth, appreciation of life, shift in priorities, and positive affect-as well as negative responses.  相似文献   
10.
Using a Piagétan perspective, this study investigated the ways in which elementary school children perceive changes in the size of a televised image (in this case, a candy bar). The findings suggest that younger children perceive changes in image size from a medium shot to a close-up as changes in the object itself. Children's responses to changes in the televised image parallel their responses to traditional conservation tasks, but conservation of televised images occurs at a later age. In addition, children appear to use different cognitive skills to interpret how a zoom or a cut transforms the size of a televised image. When a zoom is used, children more readily perceive the object as “growing larger.”  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