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   633篇
  免费   30篇
  2023年   8篇
  2022年   5篇
  2021年   13篇
  2020年   12篇
  2019年   19篇
  2018年   24篇
  2017年   24篇
  2016年   37篇
  2015年   27篇
  2014年   23篇
  2013年   65篇
  2012年   28篇
  2011年   40篇
  2010年   19篇
  2009年   16篇
  2008年   19篇
  2007年   23篇
  2006年   22篇
  2005年   20篇
  2004年   23篇
  2003年   22篇
  2002年   13篇
  2001年   20篇
  2000年   8篇
  1999年   6篇
  1998年   6篇
  1997年   8篇
  1996年   5篇
  1995年   7篇
  1994年   10篇
  1993年   3篇
  1992年   4篇
  1991年   7篇
  1988年   4篇
  1987年   3篇
  1986年   4篇
  1985年   6篇
  1984年   6篇
  1983年   5篇
  1982年   4篇
  1978年   3篇
  1976年   3篇
  1975年   2篇
  1973年   5篇
  1972年   2篇
  1971年   3篇
  1970年   3篇
  1969年   3篇
  1968年   2篇
  1967年   5篇
排序方式: 共有663条查询结果,搜索用时 31 毫秒
1.
2.
Several previous studies have shown that memory span is greater for short words than for long words. This effect is claimed to occur even when the short and long words are matched for the number of syllables and phonemes and so to provide evidence for subvocal articulation as being one mechanism that underlies memory span (Baddeley, Thomson, & Buchanan, 1975). The three experiments reported in this paper further investigate the articulatory determinants of word length effects on span tasks. Experiment 1 replicated Baddeley et al.'s finding of an effect of word length on auditory and visual span when the stimuli consist of words that differ in terms of the number of syllables. Experiments 2 and 3 showed that the effects of word length are eliminated when the words in the span task are matched for the number of syllables and phonemes but differ with respect to the duration and/or complexity of their articulatory gestures. These results indicate that it is the phonological structure of a word and not features of its actual articulation that determines the magnitude of the word length effect in span tasks.  相似文献   
3.
4.
Although stress and anxiety have long been assumed to play an exacerbatory role in asthma, no study has systematically documented that daily exacerbations of asthma symptoms are related to stress and/or anxiety. In this study, 24 airways obstruction patients (12 asthmatics and 12 chronic obstructive pulmonary disease patients) were instructed to monitor the severity of daily respiratory symptoms. In addition, subjects recorded their daily anxiety level and the number and perceived impact of daily stressors. The results showed that although there were differences between high- and low-stress days for both groups, there were no differences between groups on symptom severity or between high- and low-anxiety days, as measured by the State-Trait Anxiety Inventory (STAI). Thus, although the number and impact of daily stressors were found to be directly associated with the severity of asthma symptoms, anxiety does not appear to have a direct role in the exacerbation of asthma. The findings failed to support the anxiety theory of asthma but provided an explanation for the poor results obtained in previous treatment studies which employed anxiety management with asthmatics.  相似文献   
5.

Insincerity is the intentional conflict between a state of mind and a synchronic linguistic act. Three cases have to be distinguished: lying, as the opposition of belief and assertion (the act is untruthful); dishonesty, as the opposition of will and declaration of will (act empty); and simulation, as the opposition of emotion and exclamation (act ungenuine). One of the problems arising is: Are there insincere commands, and if not, why?

Disloyalty, on the other hand, is a diachronic inconsequence, the breach of a linguistic action (act unredeemed) which was binding for the future (such as, e.g. a promise). There is a cross-connection to dishonesty, which can be seen as the will to be disloyal.

  相似文献   
6.
The use of spelling-sound information in both reading and spelling was evaluated by having children read and spell nonwords and five types of words that differed in terms of their regularity for reading and spelling. The subjects were grade 3 children who had been psychometrically defined as good readers and good spellers (“good”), good readers and poor spellers (“mixed”), or poor readers and poor spellers (“poor”). Results indicated that all children attempted to use spelling-sound correspondences in both reading and spelling, although children in both the mixed and the poor groups had weaker knowledge of these correspondences and were less systematic in their use of them. Furthermore, even though the children in the mixed group had been matched with children in the good group on reading comprehension, the number and type of errors made by the mixed subjects on both the reading and spelling tasks were more similar to those of the poor subjects than to those of the good subjects.  相似文献   
7.
This paper draws a distinction between the existential quantifier and the symbol ‘∃’ used to express it, on the one hand, and existence and ‘exists’, on the other. It argues that some popular arguments in metaphysics, including arguments against vague existence and arguments against deflationary metaontology (which views ontological disputes as lacking substance), are guilty of fudging this distinction. The paper draws some lessons for metaphysical debate about existence and highlights some heretofore ignored and attractive positions in logical space.  相似文献   
8.
In this article, we share findings from a qualitative case study of a virtual youth photovoice program implemented across three regions of the United States. The purpose of the program was to engage youth in research on a social issue relevant to them during an unprecedented year marked by two public health crises, COVID-19 and anti-Black racial violence. Results of an analysis of curriculum and archival program materials lend support for online strategies for youth engagement including individualized support and online audiovisual presentations with avatars. Racial justice and trauma-informed adaptations were designed to be responsive to youth needs for flexible programming and safe spaces. Themes captured in the first online gallery of youth photos include (1) tools for mental health, (2) meaningful connection, and (3) community advocacy, bringing attention to structural issues as well as family and community strengths. Findings suggest photovoice can be thoughtfully adapted for youth researchers and support individual and group storytelling in response to collective trauma.  相似文献   
9.
10.
We shall introduce in this paper a language whose formulas will be interpreted by games of imperfect information. Such games will be defined in the same way as the games for first-order formulas except that the players do not have complete information of the earlier course of the game. Some simple logical properties of these games will be stated together with the relation of such games of imperfect information to higher-order logic. Finally, a set of applications will be outlined.  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