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   30070篇
  免费   587篇
  国内免费   2篇
  30659篇
  2020年   327篇
  2019年   377篇
  2018年   502篇
  2017年   539篇
  2016年   573篇
  2015年   396篇
  2014年   488篇
  2013年   2300篇
  2012年   860篇
  2011年   889篇
  2010年   595篇
  2009年   541篇
  2008年   817篇
  2007年   756篇
  2006年   712篇
  2005年   618篇
  2004年   589篇
  2003年   569篇
  2002年   597篇
  2001年   707篇
  2000年   724篇
  1999年   557篇
  1998年   315篇
  1997年   315篇
  1996年   305篇
  1992年   521篇
  1991年   497篇
  1990年   470篇
  1989年   450篇
  1988年   455篇
  1987年   427篇
  1986年   463篇
  1985年   457篇
  1984年   394篇
  1983年   354篇
  1981年   302篇
  1979年   430篇
  1978年   352篇
  1977年   300篇
  1976年   311篇
  1975年   368篇
  1974年   460篇
  1973年   485篇
  1972年   359篇
  1971年   389篇
  1970年   345篇
  1969年   375篇
  1968年   454篇
  1967年   415篇
  1966年   431篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
821.
Journal of Religion and Health - Our interdisciplinary team (which included professionals from nursing, pharmacy, allied health, and psychology) conducted in-depth, semi-structured interviews with...  相似文献   
822.
Current Psychology - The current study aimed to explore the validity of a single, self-report measure for bladder and bowel anxieties (Bladder and Bowel Anxiety Grouping Item; BABAGI), using two...  相似文献   
823.
Continental Philosophy Review - Albert Camus repeatedly denied the label “existentialist,” and pointed to his formative experiences of natural beauty and his early introduction to...  相似文献   
824.

While previous research has shown that during mental imagery participants look back to areas visited during encoding it is unclear what happens when information presented during encoding is incongruent. To investigate this research question, we presented 30 participants with incongruent audio-visual associations (e.g. the image of a car paired with the sound of a cat) and later asked them to create a congruent mental representation based on the auditory cue (e.g. to create a mental representation of a cat while hearing the sound of a cat). The results revealed that participants spent more time in the areas where they previously saw the object and that incongruent audio-visual information during encoding did not appear to interfere with the generation and maintenance of mental images. This finding suggests that eye movements can be flexibly employed during mental imagery depending on the demands of the task.

  相似文献   
825.
It is possible to design effective, pragmatically useful memory interventions for persons with Dementia of the Alzheimer's Type (DAT). A review of successful memory interventions for such populations is presented. A particularly effective intervention technique, spaced-retrieval, is described and the theoretical basis for its effectiveness is discussed. A detailed account is presented of a spaced-retrieval intervention in which persons with DAT are trained to learn and utilize a strategy, i.e., remembering to use a calendar listing daily activities. Directions for future research in this area are offered.  相似文献   
826.
The paper reports a study of participatory experiences among members of power-based community organizations. A path model of psychological empowerment was tested. Perceived relational characteristics of the community organization were hypothesized as exogenous to participation, perceived organizational power and psychological empowerment. An alternative model was reproduced with the strongest relationships between perceived organizational intimacy and psychological empowerment and an inverse relationship between perceived organizational regulation and perceptions of organizational power.  相似文献   
827.
In multiple-objective programming, a knowledge of the structure of the non-dominated set can aid in generating efficient solutions. We present new concepts which allow for a better understanding of the structure of the set of non-dominated solutions for non-convex bicriteria programming problems. In particular, a means of determining whether or not this set is connected is examined. Both supersets and newly defined subsets of the non-dominated set are utilized in this investigation. Of additional value is the use of the lower envelope of the set of outcomes in classifying feasible points as (properly) non-dominated solutions.  相似文献   
828.
829.
A screening decision is about whether a candidate fails to meet a decision maker's criteria and must be rejected, or whether it meets the criteria and can be accepted. Image theory contends that screening decisions are based on a simple, noncompensatory process that focuses solely upon the candidate's negative attributes. This contention has received empirical support in a job screening context in which students role-played a hypothetical person seeking a job. But how robust is image theory's prediction? The present work was done in the context of professional auditors screening prospective clients. The client screening context is a particularly interesting setting to test the implications of image theory. If auditors reject clients with negative attributes, as predicted by image theory, this will indicate that some clients are being denied access to a socially useful service. Further, auditors can accept prospective clients with negative attributes and simply adjust the audit plan and fees to compensate for the client's riskiness. Thus, it is not clear that the preliminary findings obtained in a job screening context will generalize to the audit context. On the other hand, results consistent with the image theory prediction would suggest a robust theory. Even in the client screening context, where auditors used their own criteria to screen prospective clients, we found overwhelming support for image theory's view of screening. The results indicate the potential payoffs of image theory as a robust framework to address audit and other substantive problems. Implications of a noncompensatory, negative oriented, client screening strategy are discussed.  相似文献   
830.
The responsiveness of mothers to their infants has been found to make an important contribution to children's development. Mothers' cognitive ability, emotional state, and life stresses may influence their responsiveness, as may the medical condition of their infants. The patterns of influence may vary between groups of children with different biological risk conditions and should be examined carefully to determine intervention points for different groups. Forty mothers and their 3-month-old (corrected age) infants with intraventricular hemorrhage (IVH) were observed in free play. Mothers' depressive symptoms, cognitive skills, and the degree of infants' IVH were assessed and expected to be influences on mothers' responsiveness. Results indicated that mothers' depressive symptoms and cognitive skills were associated with their responsiveness, but that depressive symptoms were the stronger predictor. Post hoc analyses suggested that socioeconomic status and depressive symptoms may have related effects on mothers' behavior.  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