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   458篇
  免费   36篇
  2024年   1篇
  2023年   8篇
  2022年   3篇
  2021年   14篇
  2020年   19篇
  2019年   9篇
  2018年   29篇
  2017年   24篇
  2016年   23篇
  2015年   20篇
  2014年   23篇
  2013年   57篇
  2012年   60篇
  2011年   33篇
  2010年   16篇
  2009年   22篇
  2008年   23篇
  2007年   19篇
  2006年   15篇
  2005年   13篇
  2004年   6篇
  2003年   12篇
  2002年   13篇
  2001年   2篇
  2000年   4篇
  1999年   3篇
  1998年   2篇
  1997年   1篇
  1996年   1篇
  1995年   4篇
  1994年   2篇
  1993年   3篇
  1992年   1篇
  1991年   1篇
  1988年   1篇
  1987年   1篇
  1984年   1篇
  1982年   2篇
  1979年   1篇
  1977年   1篇
  1965年   1篇
排序方式: 共有494条查询结果,搜索用时 15 毫秒
371.
In the twenty-first century, decisions to withhold or withdraw life-supporting measures commonly precede death in the neonatal intensive care unit without major ethical controversy. However, caregivers often feel much greater turmoil with regard to stopping medical hydration and nutrition than they do when considering discontinuation of mechanical ventilation or circulatory support. Nevertheless, forgoing medical fluids and food represents a morally acceptable option as part of a carefully developed palliative care plan considering the infant’s prognosis and the burdens of continued treatment. Decisions to stop any form of life support should focus on the clinical circumstances, not the means used to sustain life.  相似文献   
372.
Gueguen N 《Body image》2007,4(4):386-390
Previous studies have found that women with larger breasts than the average were considered to be more physically attractive. In these studies attractiveness was measured with the help of silhouette figures or photographs and the effect of breast size on men's behaviour was not considered. In this study two experiments were carried out in order to test the effect of a woman's breast size on approaches made by males. We hypothesized that an increase in breast size would be associated with an increase in approaches by men. A young female confederate was instructed to wear a bra that permitted her to artificially vary her breast size. In the first experiment the female confederate was instructed to sit in a nightclub for one hour whereas in the second experiment she was instructed to take a seat in a pavement area of a bar. It was found that increasing the breast size of the female confederate was associated with an increasing number of approaches by men.  相似文献   
373.
Monitoring progression towards one's goals is essential for efficient cognitive control. Immature performance monitoring may contribute to suboptimal cognitive control engagement in childhood, potentially explaining why children engage control reactively even when proactive control would be more effective. This study investigated whether encouraging children to actively monitor their performance results in more mature control engagement. Electroencephalography data were collected while children and adults performed a flanker task in three conditions in which they were provided no feedback, standard feedback, or were asked to estimate their own feedback. Both age groups accurately estimated their own feedback. Critically, feedback estimation promoted online performance monitoring and proactive engagement of attention and inhibition during the flanker period in children. These findings indicate that proactive control engagement in childhood can be effectively supported by encouraging performance monitoring.  相似文献   
374.
This longitudinal study investigates whether the development in executive control and bilingual experience predicts change in language control in bilingual children. Children were tested twice over the course of 1 year, using the language‐switching paradigm and the Simon task. The participants were Japanese‐English bilingual “returnee” children (ages 7–13), who returned to their first language (L1) environment after spending some years in a second language (L2) dominant environment. Testing these children upon their return to the L1 environment allowed us to disentangle the effect of age from bilingual experience, as they experienced an increase in age but a decrease in L2 exposure over time. Children who had less L2 exposure showed smaller improvement in baseline performance when naming pictures in English (i.e., when English was relevant across all trials). Moreover, development in trials where children had to switch between languages were modulated by development in executive control. That is, children who increased their performance in the English mixed repetition trials also performed better on the executive control task over time. Thus, development in executive control modulated change in language control among bilingual children, suggesting a positive relationship between language control and executive control in children's development.  相似文献   
375.
Interviews are commonly used for selection but research on interview faking only gained momentum relatively recently. We review both theoretical and empirical work on prevalence, antecedents, processes, and effects of interview faking. Most applicants fake at least to some degree. Personality (e.g., Conscientiousness, Honesty‐humility, the Dark Triad) and attitudes toward faking substantially correlate with faking behaviors. Research concerning applicants' ability, interview structure components, or contextual factors is limited. Furthermore, the impact of faking on interview ratings is mixed and effects on criterion‐related validity are not consistently negative. Finally, the detection of faking seems hardly possible and there are limited options available to reduce interview faking. Throughout our review, we describe important gaps and derive suggestions and propositions for future research.  相似文献   
376.
377.
OBJECTIVE: The social self preservation theory (SSPT) proposes that social evaluative threat evokes the emotion of shame, which then shapes a coordinated psychobiological response. While this is supported in acute stress studies, there is no data on chronic experiences of shame. DESIGN: We investigated the association of trait shame with activity of the hypothalamic-pituitary-adrenal (HPA) axis, of the sympathetic nervous system (SNS), and regulation of inflammation in n = 56 young women. MAIN OUTCOME MEASURES: Daily profiles of salivary cortisol and alpha-amylase were assessed as indices of HPA axis and SNS activity, respectively. Inflammatory regulation was assessed by lipopolysaccharide-stimulated production and glucocorticoid inhibition of interleukin-6 in vitro. RESULTS: Trait shame was associated with SNS (r = .49; p = .001), but not HPA activity (r = .14; ns). Shame was associated with inflammatory activity (r = .35; p = .006) and glucocorticoid sensitivity (r = -0.43; p = .001). Relationships were not mediated by HPA and SNS activity. CONCLUSIONS: Results support SSPT predictions with respect to chronic shame experience and inflammation. Results further suggest the importance of SNS activation related to shame, and the possibility that HPA activation may be limited acute experiences of shame.  相似文献   
378.
Nicolas Rescher 《Erkenntnis》2006,64(3):281-304
What has become generally known as the Berlin School of Logical Empiricism constitutes a philosophical movement that was erected on foundations laid by Albert Einstein. His revolutionary work in physics had a profound impact on philosophers interested in scientific issues, prominent among them Paul Oppenheim and Hans Reichenbach, the founding fathers of the school, who joined in viewing him as their hero among philosopher–scientists. Overall the membership of this school falls into three groups. The founding generation was linked by the circumstance that both Grelling and Reichenbach were collaborators of Oppenheim; the middle generation by the fact that both Hempel and Helmer were students of Reichenbach’s in Berlin; and the younger generation by the fact that all of its members were students and (at least in their early years) disciples either of Reichenbach’s or of Hempel’s in the USA. Three stages are at issue: an initial phase in Berlin, a transatlantic migration, and a continuation in the U.S.A.—principally in Pittsburgh.  相似文献   
379.
Masking is an important tool in many paradigms used to study the cognitive architecture. The N2pc is an electrophysiological event-related potential (ERP) that has been used as a tool to study the deployment of visual spatial attention. The aim of this paper was to study the effects of masking on the N2pc. Two stimuli were presented on the screen, one to left and one to right of fixation, and subjects reported the identity of one of them. The targets could be discriminated both by their category (letters vs. digit) and by their colour (pink vs. green). Backward masking was produced by presenting a second pair of bilateral stimuli after the offset of the first pair. The second pair of stimuli consisted of characters of the same colour and category as in the first pair. Forward masking was produced by using the very same stimuli as in the backward masking condition, but by instructing subjects to report the second stimulus. The forward mask trials had longer response times compared to no-mask trials, and backward mask trials had even longer response times, and also a higher error rate. Although the different masking procedures lead to clear behavioural effects, the N2pc was not affected, suggesting that the deployment of visual spatial attention, per se, was not affected by pattern masking. A sustained posterior contralateral negativity (SPCN) following the N2pc was also found (300 ms post-target, and beyond), and the amplitude of the SPCN was strongly modulated by the number of presented stimuli and the duration of the SPCN was positively correlated with RT in the behavioural task. We hypothesize that the SPCN reflects neural activity associated with the passage of information through visual short-term memory.  相似文献   
380.
In this pilot study, implicit memory was examined in participants selected according to their scores on the Wechsler Memory Scale-Revised. Implicit memory was explored using a word-stem completion test after 24 participants had processed texts to be remembered. Variations in priming were observed among 12 Normal and 12 Good memorizers (Verbal Memory scores >110) following presentation of target words in the context of a coherent text. One intriguing result emerged: the magnitude of the priming effect varied by group, greater among Good memorizers than Normal memorizers.  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