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   4225篇
  免费   219篇
  2023年   40篇
  2022年   42篇
  2021年   78篇
  2020年   86篇
  2019年   116篇
  2018年   155篇
  2017年   162篇
  2016年   182篇
  2015年   129篇
  2014年   146篇
  2013年   512篇
  2012年   225篇
  2011年   247篇
  2010年   155篇
  2009年   153篇
  2008年   203篇
  2007年   165篇
  2006年   150篇
  2005年   126篇
  2004年   132篇
  2003年   140篇
  2002年   119篇
  2001年   84篇
  2000年   91篇
  1999年   67篇
  1998年   50篇
  1997年   41篇
  1996年   29篇
  1995年   31篇
  1994年   29篇
  1993年   18篇
  1992年   44篇
  1991年   32篇
  1990年   49篇
  1989年   47篇
  1988年   43篇
  1987年   26篇
  1986年   32篇
  1985年   31篇
  1984年   26篇
  1983年   22篇
  1982年   24篇
  1981年   16篇
  1980年   10篇
  1979年   15篇
  1978年   14篇
  1975年   7篇
  1974年   11篇
  1972年   11篇
  1938年   6篇
排序方式: 共有4444条查询结果,搜索用时 15 毫秒
901.
The aim of this article is to review and evaluate behavioral and physiological measurement techniques frequently used to assess dental anxiety and fear in children. Attention is given to the data collected, the empirical findings obtained, and the availability of normative data. The main focus, however, is on the reliability and validity. Results show that all questionnaires are open to criticism. Of the behavioral measures, Melamed's Behavior Profile Rating Scale is to be preferred to Frankl's Rating Scale, Venham Rating Scales, and Visual Analogue Scales. The main reasons are that Melamed's BPRS measures the behavior of the child more precisely and that it has superior psychometric properties. Furthermore, because of their practical, conceptual, and psychometric problems, physiological measures at this stage are found to be less appropriate for assessing dental fear in children. It is concluded that a behavioral measure is not always the ideal, but often the only available technique for assessing dental fear in children.  相似文献   
902.
903.
Modal Foundations for Predicate Logic   总被引:1,自引:0,他引:1  
  相似文献   
904.
Reasoning about update logic   总被引:1,自引:0,他引:1  
Logical frameworks for analysing the dynamics of information processing abound [4, 5, 8, 10, 12, 14, 20, 22]. Some of these frameworks focus on the dynamics of the interpretation process, some on the dynamics of the process of drawing inferences, and some do both of these. Formalisms galore, so it is felt that some conceptual streamlining would pay off.This paper is part of a larger scale enterprise to pursue the obvious parallel between information processing and imperative programming. We demonstrate that logical tools from theoretical computer science are relevant for the logic of information flow. More specifically, we show that the perspective of Hoare logic [13, 18] can fruitfully be applied to the conceptual simplification of information flow logics.  相似文献   
905.
This study examined overlap between four basal reading programs and the phonetic analysis subtest of three standardized achievement measures. Raw scores, percentages of items correct, grade equivalents, and percentile scores were computed for a hypothetical student who had mastered all grapheme-phoneme correspondences taught at each grade level. The results indicated that (a) programs differed in the number and sequence of phonics skills taught; (b) percentile and grade-equivalent scores differed across programs at each grade level for a given test; and (c) the proportion of grade-equivalent scores falling at or above expected grade levels differed across tests for a given program (range of 29%–71%). The implications for selecting and interpreting standardized measures of reading decoding are discussed.  相似文献   
906.
The present study investigates the effect of priming on the use of social categorizations. Using sex and race as stimulus categorizations, previous studies failed to confirm the hypothesis that priming one of the two available categorizations would enhance the use of the primed categorization relation to the not-primed categorization. As suggested by Stangor, Lynch, Duan and Glass (1992). a momentary increase in accessibility may be insufficient to further enhance the use of highly accessible categorizations like race and sex, but it may be expected that priming will increase the use of categorizations which are less habitually used in daily life. The results of the present experiment support the hypothesis that, when the stimulus categorizations are weakly accessible (university major, university town), the relative use of the previously primed categorizations does indeed increase, compared to the alternative, not-primed, categorization.  相似文献   
907.
908.
The degree to which three components of the Super Woman construct of femininity [C. Steiner-Adair (1986) “The Body Politic: Normal Female Adolescent Development and the Development of Eating Disorders” Journal of the American Academy of Psychoanalysis, Vol. 14, pp. 95–114], valuing physical appearance, striving for success in multiple roles, and insecure parental attachment, are related to eating disorder symptoms was examined for a sample of 156 college women (84% white, 6% African American, 6% Asian, 3% Latina, 1% another race). Canonical analysis yielded three significant roots, suggesting a complex relationship between components of the Super Woman model and eating disorder symptoms. The first root supports the hypothesized relationship between the three components of the Super Woman model and eating disorder symptoms. The second root suggests that striving for success, when accompanied by a context of secure parental attachment, is positively associated with measures of social competence. The third root highlights the contribution of an emphasis on physical appearance to weight concern, dieting, and bulimic behavior.  相似文献   
909.
To test the hypothesis that the major evaluative beliefs postulated by Rational-Emotive Behaviour Therapy are related to marital adjustment, 50 married couples completed the Dyadic Adjustment Scale (DAS) and the Survey of Personal Beliefs (SPB). Significant correlations were found between DAS scores and three subscales (Other directed shoulds, Low frustration tolerance and Self worth) of the SPB. On the interpersonal dimension of assumed similarity, females in the high dyadic adjustment group were better able to predict their spouses' awfulizing, low frustration tolerance and self-worth beliefs than were females in the low adjustment group. However, the present study offers only limited support for the hypothesis that interpersonal perception of irrational evaluative beliefs is related to marital adjustment.  相似文献   
910.
Previous studies have indicated that suppression of a thought results in an immediate increase of the frequency of this thought and/or in a rebound effect, i.e. in a heightened frequency of this thought later on. The present study (n = 53) examined the relationship between suppression and emotionality of the to-be-suppressed material. More specifically, it was investigated whether suppression of an emotional story results in stronger immediate enhancement or thought rebounds than suppression of a neutral story. There was a clear initial enhancement effect in the group suppressing a neutral story: subjects who tried to suppress experienced more target thoughts than subjects who did not try to suppress. In the neutral-story conditions, no rebound effect occurred. In the groups exposed to an emotional story, there was neither evidence of initial enhancement nor of a rebound. As most obsessions are related to emotional themes, the present findings cast doubt on the claim that the rebound phenomenon represents a valid laboratory model for clinical obsessions.  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