全文获取类型
收费全文 | 252篇 |
免费 | 9篇 |
国内免费 | 1篇 |
专业分类
262篇 |
出版年
2018年 | 7篇 |
2017年 | 11篇 |
2016年 | 5篇 |
2015年 | 4篇 |
2014年 | 9篇 |
2013年 | 29篇 |
2012年 | 16篇 |
2011年 | 18篇 |
2010年 | 9篇 |
2009年 | 6篇 |
2008年 | 6篇 |
2007年 | 14篇 |
2006年 | 6篇 |
2005年 | 9篇 |
2004年 | 8篇 |
2003年 | 5篇 |
2002年 | 11篇 |
2000年 | 3篇 |
1998年 | 4篇 |
1994年 | 3篇 |
1991年 | 2篇 |
1989年 | 3篇 |
1987年 | 2篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 3篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 6篇 |
1973年 | 3篇 |
1972年 | 2篇 |
1971年 | 3篇 |
1970年 | 3篇 |
1969年 | 2篇 |
1968年 | 2篇 |
1967年 | 3篇 |
1966年 | 2篇 |
1954年 | 1篇 |
1952年 | 2篇 |
1941年 | 1篇 |
1933年 | 1篇 |
1925年 | 3篇 |
1924年 | 1篇 |
1922年 | 2篇 |
1920年 | 1篇 |
1919年 | 1篇 |
排序方式: 共有262条查询结果,搜索用时 15 毫秒
11.
Singer EA 《Science and engineering ethics》2004,10(1):51-56
The use of placebo in clinical trials has been repeatedly challenged as being unacceptable from an ethical point of view.
The present paper responds to this criticism by taking up the issue in the light of the pertinent provisions of the Helsinki
Declaration. Examples from different therapeutic areas are given that highlight the importance of placebo in situations in
which its use is acceptable according to the Declaration. Particular emphasis is given to the question of active control trials,
which, under conditions of low assay sensitivity, may become an ethically less acceptable approach than the use of a placebo
control.
An earlier version of this paper was presented at an international conference, “Placebo: Its Action and Place in Health Research
Today,” held in Warsaw, Poland on 12–13 April, 2003. 相似文献
12.
In line with the ironic processing theory of Wegner (Psychol. Rev. 101 (1994) 34), it is often argued that the suppression of anxiety-related thoughts results in a paradoxical increase of anxiety and thought intrusions, both after and during the thought suppression. In a sample of undergraduate students (14 men, 18 women), we investigated the effects of suppressing anxious thoughts about an imminent painful electrocutaneous stimulus. During thought suppression, self-reported anxiety and frequency of anxious thoughts did not increase, and duration of anxious thoughts decreased. After thought suppression, participants experienced an increase in self-reported anxiety and the frequency of anxious thoughts. There was no effect upon thought duration. The results support the idea that suppression of anxiety-related thoughts may result in a paradoxical increase in anxiety, and may cause and/or maintain anxiety problems. 相似文献
13.
Viewpoint dependence in visual and haptic object recognition 总被引:5,自引:0,他引:5
On the whole, people recognize objects best when they see the objects from a familiar view and worse when they see the objects from views that were previously occluded from sight. Unexpectedly, we found haptic object recognition to be viewpoint-specific as well, even though hand movements were unrestricted. This viewpoint dependence was due to the hands preferring the back "view" of the objects. Furthermore, when the sensory modalities (visual vs. haptic) differed between learning an object and recognizing it, recognition performance was best when the objects were rotated back-to-front between learning and recognition. Our data indicate that the visual system recognizes the front view of objects best, whereas the hand recognizes objects best from the back. 相似文献
14.
15.
Ernst Kux 《Studies in East European Thought》1990,40(1-3):89-111
Ohne Zusammenfassung 相似文献
16.
Ernst Wolfgang Orth 《Husserl Studies》1994,11(3):153-168
Ohne Zusammenfassung 相似文献
17.
18.
Different event-related potentials (ERPs) have been shown to correlate with learning from feedback in decision-making tasks
and with learning in explicit memory tasks. In the present study, we investigated which ERPs predict learning from corrective
feedback in a multiple-choice test, which combines elements from both paradigms. Participants worked through sets of multiple-choice
items of a Swahili–German vocabulary task. Whereas the initial presentation of an item required the participants to guess
the answer, corrective feedback could be used to learn the correct response. Initial analyses revealed that corrective feedback
elicited components related to reinforcement learning (FRN), as well as to explicit memory processing (P300) and attention
(early frontal positivity). However, only the P300 and early frontal positivity were positively correlated with successful
learning from corrective feedback, whereas the FRN was even larger when learning failed. These results suggest that learning
from corrective feedback crucially relies on explicit memory processing and attentional orienting to corrective feedback,
rather than on reinforcement learning. 相似文献
19.
Ernst R. Schwarz Kiran J. Philip Sinan A. Simsir Lawrence Czer Alfredo Trento Stuart G. Finder Laurent A. Cleenewerck 《Journal of religion and health》2011,50(4):872-879
Deciding who should receive maximal technological treatment options and who should not represents an ethical, moral, psychological
and medico-legal challenge for health care providers. Especially in patients with chronic heart failure, the ethical and medico-legal
issues associated with providing maximal possible care or withholding the same are coming to the forefront. Procedures, such
as cardiac transplantation, have strict criteria for adequate candidacy. These criteria for subsequent listing are based on
clinical outcome data but also reflect the reality of organ shortage. Lack of compliance and non-adherence to lifestyle changes
represent relative contraindications to heart transplant candidacy. Mechanical circulatory support therapy using ventricular
assist devices is becoming a more prominent therapeutic option for patients with end-stage heart failure who are not candidates
for transplantation, which also requires strict criteria to enable beneficial outcome for the patient. Physicians need to
critically reflect that in many cases, the patient’s best interest might not always mean pursuing maximal technological options
available. This article reflects on the multitude of critical issues that health care providers have to face while caring
for patients with end-stage heart failure. 相似文献
20.
Prior evidence has shown that aversive emotional states are characterised by an attentional bias towards aversive events. The present study investigated whether aversive emotions also bias attention towards stimuli that represent means by which the emotion can be alleviated. We induced disgust by having participants touch fake disgusting objects. Participants in the control condition touched non-disgusting objects. The results of a subsequent dot-probe task revealed that attention was oriented to disgusting pictures irrespective of condition. However, participants in the disgust condition also oriented towards pictures representing cleanliness. These findings suggest that the deployment of attention in aversive emotional states is not purely stimulus driven but is also guided by the goal to alleviate this emotional state. 相似文献