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   54178篇
  免费   2345篇
  国内免费   30篇
  2020年   664篇
  2019年   772篇
  2018年   1101篇
  2017年   1138篇
  2016年   1226篇
  2015年   807篇
  2014年   995篇
  2013年   4859篇
  2012年   1720篇
  2011年   1853篇
  2010年   1110篇
  2009年   1142篇
  2008年   1675篇
  2007年   1672篇
  2006年   1481篇
  2005年   1330篇
  2004年   1298篇
  2003年   1180篇
  2002年   1220篇
  2001年   1783篇
  2000年   1680篇
  1999年   1293篇
  1998年   702篇
  1997年   587篇
  1996年   559篇
  1995年   560篇
  1994年   527篇
  1993年   548篇
  1992年   1060篇
  1991年   1008篇
  1990年   984篇
  1989年   883篇
  1988年   840篇
  1987年   825篇
  1986年   825篇
  1985年   873篇
  1984年   690篇
  1983年   589篇
  1982年   491篇
  1979年   677篇
  1978年   521篇
  1977年   456篇
  1975年   597篇
  1974年   629篇
  1973年   601篇
  1972年   548篇
  1971年   480篇
  1968年   543篇
  1967年   548篇
  1966年   480篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
181.
182.
183.
Connectionism and cognitive architecture: a critical analysis   总被引:54,自引:0,他引:54  
J A Fodor  Z W Pylyshyn 《Cognition》1988,28(1-2):3-71
  相似文献   
184.
Two modes of learning for interactive tasks   总被引:5,自引:0,他引:5  
N A Hayes  D E Broadbent 《Cognition》1988,28(3):249-276
  相似文献   
185.
Within our present health care system, there is a growing movement that argues that our perceptions of health and illness are in need of change. This change includes redefining what we mean by health in terms of the whole person—the emotional, social, and spiritual dimensions of our being, as well as the physical. An increasing number of health professionals and social scientists believe our concepts of health and illness must consider all these aspects of life. It is believed that the quality of life may be enhanced by such perceptions of health, which include social and spiritual factors. Using data from the 1985 Akron Area Survey—The Subjective Quality of Life in the Akron Area—this study explores the effects of spiritual well-being and emotional well-being on health satisfaction. Results indicate that emotional and spiritual factors do significantly contribute to the subjective evaluation of health, especially for individuals who are physically limited.An earlier draft of this paper was presented at the joint session of the Association for the Sociology of Religion and the American Sociological Association, August 20, 1986. The author would like to thank Margaret Poloma, Ph.D., The University of Akron, and Mark Tausig, Ph.D., The University of Akron, for their helpful comments.  相似文献   
186.
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   
187.
188.
189.
Frontal amnesia and the dysexecutive syndrome   总被引:6,自引:0,他引:6  
This study analyzes the memory deficits shown by an amnesic patient with bilateral frontal damage and a dysexecutive syndrome. He resembles a classic amnesic patient in showing grossly impaired episodic memory for both verbal and nonverbal material, together with normal digit span, and on occasion normal recency in free recall. He differs from the classic amnesic pattern however in showing an impairment in both the speed and accuracy of performance on tests of semantic memory, and in clear evidence for impaired performance on some though not all procedural learning tasks. Finally, his autobiographical memory was poor and subject to substantial confabulation. It is suggested that the pattern of deficits is consistent with a combination of a classic amnesic syndrome with the additional problems associated with the frontal dysexecutive syndrome, rather than exhibiting a qualitatively different form of amnesia.  相似文献   
190.
Two theoretical approaches to smoking cessation were compared. Participants were randomly assigned either to (a) a traditional treatment program that used contingency contracting and that emphasized the necessity for absolute abstinence (AA) or to (b) a relapse-prevention (RP) treatment that focused on gradual acquisition of nonsmoking skills. It was hypothesized that participants in the RP treatment would be less successful initially but would have better maintenance skills and thus would relapse less during a 1-year follow-up period. Each program was evaluated in two formats: group-based treatment and self-help materials. Results indicated comparable 1-year abstinence rates for all treatments, although more participants dropped out of the self-help formats. Participants in the RP intervention were more likely to lapse sooner after quitting and were more likely to quit again during the 1-year maintenance period. Exploratory analyses of successful participants suggested that women were more successful in the RP program and that men had greater success with the AA approach.  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