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   68821篇
  免费   2827篇
  国内免费   23篇
  2020年   731篇
  2019年   945篇
  2018年   1254篇
  2017年   1251篇
  2016年   1379篇
  2015年   998篇
  2014年   1198篇
  2013年   5400篇
  2012年   2154篇
  2011年   2328篇
  2010年   1487篇
  2009年   1501篇
  2008年   2143篇
  2007年   2106篇
  2006年   1929篇
  2005年   1681篇
  2004年   1606篇
  2003年   1532篇
  2002年   1611篇
  2001年   2119篇
  2000年   2111篇
  1999年   1610篇
  1998年   838篇
  1997年   729篇
  1996年   695篇
  1995年   657篇
  1992年   1339篇
  1991年   1228篇
  1990年   1213篇
  1989年   1110篇
  1988年   1095篇
  1987年   1055篇
  1986年   1105篇
  1985年   1127篇
  1984年   966篇
  1983年   878篇
  1982年   654篇
  1981年   654篇
  1979年   1023篇
  1978年   759篇
  1975年   818篇
  1974年   879篇
  1973年   961篇
  1972年   799篇
  1971年   759篇
  1970年   651篇
  1969年   688篇
  1968年   875篇
  1967年   787篇
  1966年   654篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
13.
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   
14.
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   
15.
This article integrates existing theoretical perspectives on message content and negotiator motivation to formulate a comprehensive definitional model of the interrelationships among communication behaviors in crisis negotiation. A sample of 189 nuclear dialogue spans were transcribed from 9 resolved cases of hostage negotiation and each utterance coded at the level of thought units across 41 behavioral variables. Results of a nonmetric, multidimensional scaling solution provided clear support for the hypothesized cylindrical structure of communication behavior, revealing 3 dominant levels of suspect‐negotiator interaction (Avoidance, Distributive, Integrative). At each level of the structure, interactions were found to modulate around 3 thematic styles of communication (Identity, Instrumental, Relational), which reflected the underlying motivational emphasis of individuals' dialogue. Finally, the intensity of communication was found to play a polarizing role in the cylinder, with intense, functionally discrete behaviors occurring toward the boundary of the structure.  相似文献   
16.
17.
18.
19.
20.
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