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   25900篇
  免费   1004篇
  国内免费   9篇
  2019年   254篇
  2018年   386篇
  2017年   402篇
  2016年   430篇
  2015年   316篇
  2014年   378篇
  2013年   1964篇
  2012年   649篇
  2011年   701篇
  2010年   485篇
  2009年   440篇
  2008年   700篇
  2007年   612篇
  2006年   572篇
  2005年   487篇
  2004年   482篇
  2003年   498篇
  2002年   508篇
  2001年   670篇
  2000年   660篇
  1999年   515篇
  1998年   265篇
  1997年   282篇
  1996年   282篇
  1995年   259篇
  1992年   486篇
  1991年   454篇
  1990年   449篇
  1989年   419篇
  1988年   437篇
  1987年   405篇
  1986年   449篇
  1985年   431篇
  1984年   377篇
  1983年   336篇
  1981年   266篇
  1979年   401篇
  1978年   325篇
  1977年   281篇
  1976年   294篇
  1975年   343篇
  1974年   430篇
  1973年   463篇
  1972年   343篇
  1971年   368篇
  1970年   333篇
  1969年   361篇
  1968年   434篇
  1967年   400篇
  1966年   415篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
122.
123.
124.
Insight reflects the unitary nature of psychic activity in contrast to the fragmentation created in abstracting categories for the purpose of study and discussion. The unique analytic clinical dyad offers a structure in which intrapsychic fragments can be actualized and integrated. As a result, the analyst's contribution is more crucially one of exploration than of revelation. Whatever the area of examination, past or present, the link to analytic immediacy offers the opportunity to make meanings meaningful, to convert known facts to psychic truths. The analyst's clinical task requires his private self-analysis as part of the collaborative exploration of how the patient's mind works. Higher level ego functioning, including acutely active remembering, is at times transiently loosened in order for the analyst to share in the clinical work of discovery. The words the analyst uses to communicate his understanding convey only approximate manifest meanings, though they structurally reveal deeper messages of importance to the patient. These verbal approximations help stimulate self-reflection in the analysand as a step in the process of gaining insight.  相似文献   
125.
EEG correlation analyses were conducted with children with and without specific learning weaknesses. Reduced left parietal correlation was found in children with dyslectic problems, and in children with adjustment and concentration problems, reduced bioelectric correlation. The frequent evidence of brain injury criteria suggests a link with general affectations of correlation but not specifically with cerebral correlation affections. It would appear to be appropriate to employ computer-assisted EEG correlation analysis, together with frequency analysis and the examination of evoked potentials in objective neurometric diagnosis where children with learning weaknesses are involved.  相似文献   
126.
127.
128.
129.
Ratings of pre-morbid intelligence level, derived from the hospital charts of 26 chronic schizophrenics, were correlated with the post-mortem brain volume measures of cortex, white matter, central grey matter, and ventricles. Contrary to hypothesis, no significant correlations were found.  相似文献   
130.
M. W. Bunder 《Studia Logica》1988,47(2):129-143
In the early thirties, Church developed predicate calculus within a system based on lambda calculus. Rosser and Kleene developed Arithmetic within this system, but using a Godelization technique showed the system to be inconsistent.Alternative systems to that of Church have been developed, but so far more complex definitions of the natural numbers have had to be used. The present paper based on a system of illative combinatory logic developed previously by the author, does allow the use of the Church numerals. Given a new definition of equality all the Peano-type axioms of Mendelson except one can be derived. A rather weak extra axiom allows the proof of the remaining Peano axiom. Note. The illative combinatory logic used in this paper is similar to the logic employed in computer languages such as ML.The author wishes to thank Dr. Roger Hindley for proofreading this paper and for making some useful suggestions. This paper was presented at the 1986 Annual Conference of the Australasian Association of Logic in Auckland, 9–12 July, 1986.  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