全文获取类型
收费全文 | 476篇 |
免费 | 18篇 |
出版年
2018年 | 8篇 |
2017年 | 12篇 |
2016年 | 4篇 |
2015年 | 9篇 |
2014年 | 8篇 |
2013年 | 45篇 |
2012年 | 15篇 |
2011年 | 15篇 |
2010年 | 9篇 |
2009年 | 11篇 |
2008年 | 15篇 |
2007年 | 19篇 |
2006年 | 10篇 |
2005年 | 17篇 |
2004年 | 12篇 |
2003年 | 10篇 |
2002年 | 15篇 |
2001年 | 14篇 |
2000年 | 14篇 |
1999年 | 9篇 |
1998年 | 10篇 |
1997年 | 4篇 |
1996年 | 9篇 |
1995年 | 5篇 |
1994年 | 5篇 |
1992年 | 10篇 |
1991年 | 10篇 |
1990年 | 10篇 |
1989年 | 6篇 |
1988年 | 4篇 |
1986年 | 3篇 |
1985年 | 4篇 |
1984年 | 5篇 |
1983年 | 13篇 |
1982年 | 4篇 |
1981年 | 4篇 |
1980年 | 8篇 |
1979年 | 6篇 |
1978年 | 7篇 |
1977年 | 8篇 |
1976年 | 8篇 |
1975年 | 6篇 |
1974年 | 6篇 |
1973年 | 7篇 |
1972年 | 3篇 |
1971年 | 4篇 |
1970年 | 8篇 |
1968年 | 4篇 |
1967年 | 11篇 |
1962年 | 3篇 |
排序方式: 共有494条查询结果,搜索用时 31 毫秒
41.
Frederic Gilbert Cathal D. O’Connell Tajanka Mladenovska Susan Dodds 《Science and engineering ethics》2018,24(1):73-91
Recent developments of three-dimensional printing of biomaterials (3D bioprinting) in medicine have been portrayed as demonstrating the potential to transform some medical treatments, including providing new responses to organ damage or organ failure. However, beyond the hype and before 3D bioprinted organs are ready to be transplanted into humans, several important ethical concerns and regulatory questions need to be addressed. This article starts by raising general ethical concerns associated with the use of bioprinting in medicine, then it focuses on more particular ethical issues related to experimental testing on humans, and the lack of current international regulatory directives to guide these experiments. Accordingly, this article (1) considers whether there is a limit as to what should be bioprinted in medicine; (2) examines key risks of significant harm associated with testing 3D bioprinting for humans; (3) investigates the clinical trial paradigm used to test 3D bioprinting; (4) analyses ethical questions of irreversibility, loss of treatment opportunity and replicability; (5) explores the current lack of a specific framework for the regulation and testing of 3D bioprinting treatments. 相似文献
42.
The Visual Spatial Learning Test: Differential impairment during the premanifest and manifest stages of Huntington's disease
下载免费PDF全文
![点击此处可从《Journal of Neuropsychology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Eva Pirogovsky Diane R. Nicoll Dillon M. Challener Elizabeth Breen Shea Gluhm Jody Corey‐Bloom Paul E. Gilbert 《Journal of Neuropsychology》2015,9(1):77-86
Visual spatial memory was assessed using the Visual Spatial Learning Test (VSLT) in individuals with mild to moderate Huntington's disease (HD), pre‐manifest gene carriers for HD, and demographically similar controls. The VSLT has been demonstrated to be a valid, normed measure of non‐verbal memory involving minimal motoric responses. The VSLT assesses immediate and delayed memory for designs, positions of the designs, and design/position associations. The HD group was significantly impaired (p < .05) relative to both the control and Pre‐HD groups on immediate and delayed memory for the designs, positions, and design/position associations. Although there were no differences between the Pre‐HD and control groups on immediate or delayed memory for designs or positions, the Pre‐HD group was significantly impaired (p < .05) relative to the control group on immediate and delayed memory for design/position associations. The results offer novel insight into a relatively unexamined memory deficit that may occur in gene carriers for HD prior to phenoconversion. The data indicate that the VSLT may be a useful measure of visuospatial memory during the premanifest and manifest stages of HD. 相似文献
43.
44.
45.
46.
Loss aversion occurs because people expect losses to have greater hedonic impact than gains of equal magnitude. In two studies, people predicted that losses in a gambling task would have greater hedonic impact than would gains of equal magnitude, but when people actually gambled, losses did not have as much of an emotional impact as they predicted. People overestimated the hedonic impact of losses because they underestimated their tendency to rationalize losses and overestimated their tendency to dwell on losses. The asymmetrical impact of losses and gains was thus more a property of affective forecasts than a property of affective experience. 相似文献
47.
48.
Self‐criticism has long been associated with a variety of psychological problems and is often a key focus for intervention in psychotherapy. Recent work has suggested that self‐critics have underelaborated and underdeveloped capacities for compassionate self‐soothing and warmth. This pilot study developed a diary for monitoring self‐attacking and self‐soothing thoughts and images. It also explored the personal experiences of a group of volunteer self‐critics from the local depression support group who were given training in self‐soothing and self‐compassion. Although using small numbers, this study suggests the potential value of developing more complex methodologies for studying the capacity for self‐compassion, interventions to increase self‐compassion (including imagery techniques), and their effects on mental health. 相似文献
49.
50.
Research using schematic faces has consistently demonstrated attentional biases towards threatening information (angry faces), which are accentuated for individuals with higher levels of anxiety. However, research has yet to reveal whether this is the case for other nonverbal channels of communication. In the research reported here, ninety-five undergraduates completed a body in the crowd task analogous to the face in the crowd task, to examine whether attentional biases for threat existed for schematic body postures. Participants demonstrated faster detection of threat. A discrepant angry posture in a neutral crowd was identified quicker than a discrepant happy posture in a neutral crowd. This effect was pronounced for individuals with higher self-reported levels of trait anxiety. Results also demonstrated evidence of delayed disengagement from threat. Individuals were slower (i.e., more distracted) by identical crowds of angry postures rather than happy or neutral crowds and were slower to detect a discrepant neutral posture among an angry crowd than neutral among a happy crowd. These findings are the first to establish threat biases using body postures in a visual search paradigm. The results are in accordance with previous research using schematic face stimuli. Theoretical and practical implications are discussed. 相似文献