全文获取类型
收费全文 | 2222篇 |
免费 | 21篇 |
专业分类
2243篇 |
出版年
2024年 | 23篇 |
2023年 | 23篇 |
2022年 | 16篇 |
2021年 | 40篇 |
2020年 | 72篇 |
2019年 | 64篇 |
2018年 | 86篇 |
2017年 | 93篇 |
2016年 | 93篇 |
2015年 | 60篇 |
2014年 | 73篇 |
2013年 | 247篇 |
2012年 | 116篇 |
2011年 | 96篇 |
2010年 | 68篇 |
2009年 | 62篇 |
2008年 | 64篇 |
2007年 | 76篇 |
2006年 | 63篇 |
2005年 | 71篇 |
2004年 | 57篇 |
2003年 | 41篇 |
2002年 | 50篇 |
2001年 | 36篇 |
2000年 | 37篇 |
1999年 | 42篇 |
1998年 | 18篇 |
1997年 | 13篇 |
1996年 | 14篇 |
1995年 | 22篇 |
1994年 | 17篇 |
1993年 | 18篇 |
1992年 | 24篇 |
1991年 | 22篇 |
1990年 | 15篇 |
1989年 | 16篇 |
1988年 | 16篇 |
1987年 | 21篇 |
1986年 | 14篇 |
1985年 | 15篇 |
1982年 | 12篇 |
1980年 | 12篇 |
1979年 | 19篇 |
1974年 | 16篇 |
1973年 | 16篇 |
1971年 | 14篇 |
1969年 | 13篇 |
1968年 | 14篇 |
1967年 | 12篇 |
1966年 | 12篇 |
排序方式: 共有2243条查询结果,搜索用时 15 毫秒
841.
842.
An alternating treatments design was used to examine the effects of story mapping, a modified self-questioning strategy, and no intervention on literal and inferential reading comprehension of elementary students with learning disabilities. Immediate post-tests indicated that students attained significantly greater comprehension in the self-questioning and story mapping conditions over no intervention. Although students attained similarly high levels of overall comprehension when they used story mapping and self-questioning, students scored slightly higher on inferential comprehension questions in the self-questioning condition. Additionally, 4 out of the 5 students indicated a preference for the self-questioning strategy. 相似文献
843.
844.
Tad T. Brunyé Tali Ditman Caroline R. Mahoney Jason S. Augustyn Holly A. Taylor 《Psychological science》2009,20(1):27-32
ABSTRACT— Readers mentally simulate the objects and events described in narratives. One common assumption is that readers mentally embody an actor's perspective; alternatively, readers might mentally simulate events from an external "onlooker" perspective. Two experiments examined the role of pronouns in modulating a reader's adopted perspective when comprehending simple event sentences. Experiment 1 demonstrated that readers embody an actor's perspective when the pronoun you or I is used, but take an external perspective when he is used. Experiment 2 , however, found that a short discourse context preceding the event sentence led readers to adopt an external perspective with the pronoun I . These experiments demonstrate that pronoun variation and discourse context mediate the degree of embodiment experienced during narrative comprehension: In all cases, readers mentally simulate objects and events, but they embody an actor's perspective only when directly addressed as the subject of a sentence. 相似文献
845.
Scientific Self-Regulation—So Good, How Can it Fail? 总被引:1,自引:1,他引:0
Patrick L. Taylor 《Science and engineering ethics》2009,15(3):395-406
To be a functional alternative to government regulation, self-regulation of science must be credible to both scientists and
the public, accountable, ethical, and effective. According to some, serious problems continue in research ethics in the United
States despite a rich history of proposed self-regulatory standards and oversight devices. Successful efforts at self-regulation
in stem cell research contrast with unsuccessful efforts in research ethics, particularly conflicts of interest. Part of the
cause for a lack of success in self-regulation is fragmented, disconnected oversight, and failure to embody genuine scientific
and public consensus. To be accountable, credible and effective, self-regulation must be inclusive and multidisciplinary,
publicly engaged, sufficiently disinterested, operationally integrated with institutional goals, and must implement a genuine
consensus among scientists and the public. The mechanisms of self-regulation must be sufficiently broad in their oversight,
and interconnected with other institutional forces and actors, that they do not create fragmented solutions.
相似文献
Patrick L. TaylorEmail: |
846.
847.
Bonnie Auyeung Simon Baron‐Cohen Emma Ashwin Rebecca Knickmeyer Kevin Taylor Gerald Hackett 《British journal of psychology (London, England : 1953)》2009,100(1):1-22
Studies of amniotic testosterone in humans suggest that fetal testosterone (fT) is related to specific (but not all) sexually dimorphic aspects of cognition and behaviour. It has also been suggested that autism may be an extreme manifestation of some male‐typical traits, both in terms of cognition and neuroanatomy. In this paper, we examine the possibility of a link between autistic traits and fT levels measured in amniotic fluid during routine amniocentesis. Two instruments measuring number of autistic traits (the Childhood Autism Spectrum Test (CAST) and the Child Autism Spectrum Quotient (AQ‐Child)) were completed by these women about their children (N=235), ages 6–10 years. Intelligence Quotient (IQ) was measured in a subset of these children (N=74). fT levels were positively associated with higher scores on the CAST and AQ‐Child. This relationship was seen within sex as well as when the sexes were combined, suggesting this is an effect of fT rather than of sex per se. No relationships were found between overall IQ and the predictor variables, or between IQ and CAST or AQ‐Child. These findings are consistent with the hypothesis that prenatal androgen exposure is related to children exhibiting more autistic traits. These results need to be followed up in a much larger sample to test if clinical cases of ASC have elevated fT. 相似文献
848.
Edward J Daly III Nikki J Wells Michelle S Swanger-Gagné James E Carr Gina M Kunz Ashley M Taylor 《Journal of applied behavior analysis》2009,42(3):563-574
The current study examined the accuracy of the multiple-stimulus without replacement (MSWO) preference assessment for identifying preferred common classroom activities as reinforcers with children with behavioral disorders. The accuracy of predictions from the MSWO regarding high, medium, and low stimulus preference was tested by providing contingent access to activities for completing math problems within an independent seatwork format. Overall, there was an interaction effect between preference ranking (high, medium, or low) and number of problems completed. The results confirm and extend previous findings regarding the accuracy of predictions with the MSWO. The findings also reveal, however, some individual differences that may account for instances in which student behavior did not conform to predictions of stimulus preference assessments. 相似文献
849.
Taking a memory test after an initial study phase produces better long-term retention than restudying the items, a phenomenon known as the testing effect. We propose that this effect emerges because testing strengthens semantic features of items' memory traces, whereas restudying strengthens surface features of items' memory traces. This novel account predicts that a testing effect should be observed even after a short retention interval when a language switch occurs between the learning phase and the final test phase. We assessed this prediction with Dutch-English bilinguals who learned Dutch Deese-Roediger-McDermott word lists through restudying or through testing (retrieval practice). Five minutes after this learning phase, they took a recognition test in Dutch (within-language condition) or in English (across-language condition). We observed a testing effect in the across-language condition, but not in the within-language condition. These findings corroborate our novel account of the testing effect. 相似文献
850.
Self-harm is one of the best predictors of death by suicide, but few studies directly compare adolescents with suicidal versus nonsuicidal self-harm. Seventy adolescents presenting with self-harm (71% young women, ages 12-18 years) who participated in a randomized controlled trial were divided into suicidal and nonsuicidal self-harm categories using the Columbia Classification Algorithm of Suicide Assessment. Adolescents with suicidal self-harm were more likely than those with nonsuicidal self-harm to be young women, 22/23 (96%) versus 34/47 (72%), odds ratio (OR) = 8.33, 95% confidence interval (CI) [1.03, 50.0]; had a later age of onset of self-harm, 15.4 years vs. 13.8 years, mean difference = 1.6, 95% CI [.8, 2.43]; and used self-poisoning more often, 18/23 (78%) versus 11/47 (23%), OR = 3.43, 95% CI [2.00, 5.89]. Only those with nonsuicidal self-harm had an improvement on Children's Global Assessment Scale score following a brief therapeutic intervention, mean difference = 8.20, 95% CI [.97, 15.42]. However, there was no interaction between treatment and suicidality. There are important differences between adolescents presenting with suicidal and nonsuicidal self-harm. Suicidal self-harm in adolescence may be associated with a less favorable response to therapeutic assessment. 相似文献