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   54750篇
  免费   1931篇
  国内免费   27篇
  56708篇
  2020年   503篇
  2019年   629篇
  2018年   823篇
  2017年   922篇
  2016年   913篇
  2015年   720篇
  2014年   788篇
  2013年   4074篇
  2012年   1436篇
  2011年   1545篇
  2010年   1004篇
  2009年   1005篇
  2008年   1419篇
  2007年   1308篇
  2006年   1183篇
  2005年   1073篇
  2004年   995篇
  2003年   1046篇
  2002年   1021篇
  2001年   1758篇
  2000年   1704篇
  1999年   1222篇
  1998年   591篇
  1997年   511篇
  1992年   1121篇
  1991年   1078篇
  1990年   1053篇
  1989年   1006篇
  1988年   937篇
  1987年   936篇
  1986年   925篇
  1985年   1029篇
  1984年   852篇
  1983年   711篇
  1982年   545篇
  1981年   593篇
  1979年   851篇
  1978年   641篇
  1977年   586篇
  1976年   550篇
  1975年   772篇
  1974年   831篇
  1973年   906篇
  1972年   750篇
  1971年   685篇
  1970年   649篇
  1969年   691篇
  1968年   829篇
  1967年   762篇
  1966年   783篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
161.
The startle probe response: a new measure of emotion?   总被引:17,自引:0,他引:17  
  相似文献   
162.
163.
On second-order family therapy   总被引:1,自引:0,他引:1  
S Golann 《Family process》1988,27(1):51-71
If family therapists remain aware of the indivisible and recursive nature of their interactions with families, and if they use this awareness to form a collaborative rather than a hierarchical therapeutic system, and at the same time minimize their attempts to change persons or family structures in strategic or predetermined ways, then they may be said to be practicing a "second-order" family therapy. This article analyzes the development of the second-order position on therapist power and influence, concluding that it is inconsistent and possibly disingenuous.  相似文献   
164.
165.
Through school-sponsored health fairs, 398 adolescents (153 males and 245 females) between the ages of 14 and 18 completed a questionnaire on their compliance with six of the U.S. Dietary Guidelines. Results indicated that adolescents report highest compliance on "eat a variety of foods" and "eat foods with adequate starch and fiber." Conversely, they indicated low compliance on "reduce sugar intake" and "reduce fat, saturated fat and cholesterol intake." Sex differences were noted on two dietary guidelines. Females reported lower compliance with respect to "maintain desirable body weight." Males, on the other hand, reported lower compliance than females on "reduce salt intake." Given the fact that the dietary guidelines of "reduce fat, saturated fat and cholesterol," "maintain desirable body weight," and "reduce salt intake" are all aimed at reducing cardiovascular risk, the low compliance reported by adolescents may have long-range health implications.  相似文献   
166.
167.
"Without a theory of mind one cannot participate in a conversation"   总被引:2,自引:0,他引:2  
S Baron-Cohen 《Cognition》1988,29(1):83-84
  相似文献   
168.
A longitudinal design was employed to test the main and stress-moderating effects of young adolescents' perceived family environment (Family Environment Scales; FES; Moos & Moos, 1981) on their depression, anxiety, and self-esteem. This study was part of a larger longitudinal project (L. Cohen, Burt, & Bjorck, 1987) that demonstrated the significant cross-sectional effects of the young adolescents' controllable and uncontrollable negative events, and the significant longitudinal effects of the former. The present cross-sectional analyses demonstrated the hypothesized main effects of the FES scores; families perceived as cohesive, organized, and expressive were related to positive psychological functioning, whereas families perceived as conflict-ridden and controlling were related to negative functioning. However, in general these effects were nonsignificant in the longitudinal analyses. Although there were a number of significant Negative Events x FES interactions, in no instance did the pattern support the hypothesized stress-buffering role of positive family climate.  相似文献   
169.
A frequently advocated strategy for increasing the efficiency of child abuse prevention programs is to deliver prevention services to "high-risk" populations. This article critically reviews procedures for the reliable and valid assessment of child abuse potential within an ecological perspective. Factors that limit the usefulness of child abuse risk assessment are discussed. These factors include the uncertain criteria of child abuse and neglect, the low base rate of the phenomenon, and the financial and social costs of such procedures. Finally, the prevention implications of the current and future state of the art in child abuse risk assessment are considered and preventive interventions that do not depend on individual case risk screening are advocated.  相似文献   
170.
The social support patterns of a sample of 101 suicide attempters were compared with the patterns of a control sample on the basis of structured interview data. Network characteristics and the extent of support in different functional categories were examined as to their absolute and relative power to discriminate between the suicide attempters and the controls. A clear separation of the functions of kin and of friends/acquaintances emerged. The crucial difference between the attempters and the controls lay in the number of friends with whom the subjects had agreeable everyday interactions and in the number of kin that provided crisis support, both psychological and instrumental. Other support differences between the two groups were of secondary importance. While there was no overall difference in the frequency of social interactions between the two groups, the size of the social network differed greatly. Consequences for the conceptualization and measurement of social support as well as for the prevention of suicidal behavior are discussed.  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