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   71260篇
  免费   2146篇
  国内免费   30篇
  2020年   616篇
  2019年   769篇
  2018年   4235篇
  2017年   3585篇
  2016年   3163篇
  2015年   949篇
  2014年   1014篇
  2013年   4691篇
  2012年   2213篇
  2011年   4021篇
  2010年   3382篇
  2009年   2428篇
  2008年   3208篇
  2007年   3561篇
  2006年   1464篇
  2005年   1516篇
  2004年   1438篇
  2003年   1269篇
  2002年   1252篇
  2001年   1784篇
  2000年   1702篇
  1999年   1283篇
  1998年   692篇
  1997年   594篇
  1996年   528篇
  1995年   532篇
  1994年   501篇
  1993年   525篇
  1992年   1012篇
  1991年   954篇
  1990年   946篇
  1989年   853篇
  1988年   817篇
  1987年   801篇
  1986年   805篇
  1985年   857篇
  1984年   670篇
  1983年   580篇
  1982年   475篇
  1979年   653篇
  1978年   485篇
  1976年   449篇
  1975年   591篇
  1974年   623篇
  1973年   594篇
  1972年   539篇
  1971年   473篇
  1968年   539篇
  1967年   540篇
  1966年   475篇
排序方式: 共有10000条查询结果,搜索用时 47 毫秒
231.
This report examines two methodologic concerns pertaining to use of the cloze procedure in studying the predictability of schizophrenic speech, scoring criteria and raters' education (at or below college level). We find that two strategies for scoring the predictions of raters, one requiring the exact word, the other permitting a reasonable synonym, do not appear to differ in distinguishing groups of patients. The accuracy of raters' guessing is, however, correlated with raters' education: the more educated the rater, the more accurate the guessing. Thought-disordered schizophrenic speech is significantly less predictable than that of nonthought-disordered schizophrenics and normal controls when scored by less educated raters. These differences diminish when more highly educated raters are used. We conclude that raters' education can influence the sensitivity of cloze analysis.  相似文献   
232.
233.
234.
The purpose of this study was to investigate differences in scores of 59 mentally retarded adults (mild, moderate, severe, or profound), 133 advantaged, and 130 disadvantaged (low income) children in Grades 1, 2, 3 on the Primary Measures of Music Audiation. Test-retest reliabilities for the Tonal and Rhythm subtests were .81 and .86, respectively, for the retarded group. Analysis of variance indicated that the mildly retarded children performed significantly better than other groups of retarded children on these two tests. 2 x 3 analyses of variance indicated that third graders from both advantaged and disadvantaged groups performed significantly better than the first or second graders on both subtests and that advantaged children performed significantly better than the disadvantaged. However, disadvantaged children made greater gains, especially for third graders, than the advantaged.  相似文献   
235.
236.
237.
The Rosenberg Self-esteem Scale was administered to 550 14- and 16-yr.-old (+/- 6 mo.) girls. Self-esteem scores were categorized by weight and weight by height. Scores on the Quetelet Index for obesity were correlated with self-esteem scores. Mean self-esteem of the low- and middle-weight by height group was significantly higher than the mean of the high-weight by height group. In analyzing weight alone, the self-esteem of the middle-weight group was significantly higher than the self-esteem of the high-weight group. The correlation of the obesity index and self-esteem indicated that as weight increased self-esteem decreased.  相似文献   
238.
From a random sample of 49 patients suffering from torticollis spasmodicus and dependence on alcohol or medicaments, 6 have been selected and are discussed with i view to findings possible mutual influences between the disorders. In particular, premorbid accentuation of personality presented itself as a potential risk factor leading to both tortocollis and alcoholism. In various cases, the patient makes use of alcohol for self-treatment of extrapyramidal-motor symptoms. But such phenomenological developments are preceded by varied constellations of conditions, that have to be taken into account in the treatment.  相似文献   
239.
240.
Midlife depression and the "empty nest" syndrome in Indian women   总被引:2,自引:0,他引:2  
  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