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111.
Two experiments examined child and adult processing of hierarchical stimuli composed of geometric forms. Adults (ages 18-23 years) and children (ages 7-10 years) performed a forced-choice task gauging similarity between visual stimuli consisting of large geometric objects (global level) composed of small geometric objects (local level). The stimuli spatial arrangement was manipulated to assess child and adult reaction times and predisposition toward local or global form categorization under two distinct trial conditions, with varied density of the local forms comprising the global forms. In Experiment 1, children and adults were presented with common, simple geometric shape hierarchical forms composed of ovals and rectangles. In Experiment 2, adults were presented with hierarchical forms composed of the simple geometric shapes, ovals and rectangles, and additional novel complex geometric shapes, “posts” and “arches.” Results show a clear increase of global processing bias across the age ranges of the individuals in the study, with children at 10 years performing similarly to adults on the simple stimuli. In addition, adults presented with the novel complex geometric shapes showed a significant reduction in global processing bias, indicating that form novelty and complexity lead to additional attention to local features in categorization tasks. 相似文献
112.
Since the nineteenth century, the problem of the arrow of time has been traditionally analyzed in terms of entropy by relating
the direction past-to-future to the gradient of the entropy function of the universe. In this paper, we reject this traditional
perspective and argue for a global and non-entropic approach to the problem, according to which the arrow of time can be defined
in terms of the geometrical properties of spacetime. In particular, we show how the global non-entropic arrow can be transferred
to the local level, where it takes the form of a non-spacelike local energy flow that provides the criterion for breaking
the symmetry resulting from time-reversal invariant local laws. 相似文献
113.
This case report describes the assessment and treatment of a 69-year-old male medical patient with urethral catheter dependence. Assessment revealed an anxiety/phobic component to the dependence and hypothesized detrusor muscle deconditioning. Retraining of the bladder and desensitization to the anxiety-provoking situation were achieved by exposure to decatheterization in the context of a supportive adult day health care setting. Interdisciplinary collaboration between nursing and psychology were associated with successful functional, social, and psychological outcomes.A psychology intern at the Portland VA Medical Center at the time the study was conducted. 相似文献
114.
Allen Johnson 《Political psychology》1997,18(2):411-438
Contrasting beliefs and attitudes held by sharecroppers and their landlord on a fazenda in Northeastern Brazil reveal a tendency to split one another into positively and negatively idealized images. Sharecroppers who ambivalently seek patronage construct good vs. bad landlords/patrons. The landlord, defensive about envy and hostility among sharecroppers, constructs good vs. bad tenants/workers. Theory from the Kleinian school of psychoanalysis concerning envy, splitting, and idealization provides a framework for interpreting ethnographic case materials. 相似文献
115.
The Impossibility of Local Skepticism 总被引:3,自引:2,他引:1
Stephen Maitzen 《Philosophia》2006,34(4):453-464
According to global skepticism, we know nothing. According to local skepticism, we know nothing in some particular area or
domain of discourse. Unlike their global counterparts, local skeptics think they can contain our invincible ignorance within
limited bounds. I argue that they are mistaken. Local skepticism, particularly the kinds that most often get defended, cannot
stay local: if there are domains whose truths we cannot know, then there must be claims outside those domains that we cannot know even if they are true. My argument focuses on one popular form of local skepticism, ethical
skepticism, but I believe that the argument generalizes to cover other forms as well.
相似文献
Stephen MaitzenEmail: |
116.
本实验采用多点定位作业,结合部分报告法,研究视觉刺激的整体结构对定位成绩的影响。所呈现的刺激为1、2、3或4个颜色点。其中2、3、4点刺激分别是直线、正三角形和正方形。结果发现,当呈现时间较长时,1点和2、3、4点的定位误差无显著差异。但是1点的定位反应时却显著少于2、3、4点。这提示出现视觉定位的结构效应。而当呈现时间较短时,却没有这种结构效应。实验还发现,这种结构效应并不因刺激结构的不同而有区别。 相似文献
117.
118.
Tuomas E. Tahko 《Metaphilosophy》2014,45(2):257-269
In formal ontology, infinite regresses are generally considered a bad sign. One debate where such regresses come into play is the debate about fundamentality. Arguments in favour of some type of fundamentalism are many, but they generally share the idea that infinite chains of ontological dependence must be ruled out. Some motivations for this view are assessed in this article, with the conclusion that such infinite chains may not always be vicious. Indeed, there may even be room for a type of fundamentalism combined with infinite descent as long as this descent is “boring,” that is, the same structure repeats ad infinitum. A start is made in the article towards a systematic account of this type of infinite descent. The philosophical prospects and scientific tenability of the account are briefly evaluated using an example from physics. 相似文献
119.
Lisa Wood 《Science as culture》2013,22(4):507-525
AbstractLarge-scale investments in health technologies often have limited evidence for effectiveness when first introduced. Nevertheless, professional and public discourses often present the advantages of such investments, with unknown risks, as necessary and entailing significant improvement. Such discourses are evident with the introduction of the Linac Adapted Conebeam Imager (LACI), introduced to improve the accuracy of radiotherapy treatments. From one perspective, the introduction of such technologies can be considered to be decadent since there is limited, if any, evidence of improvement of current standards and procedures, yet they are promoted as the latest and best technologies for solving societal problems. Connecting the concepts of decadence to those of path dependence, through the case of the LACI, enables the exploration of the ‘technical interrelatedness’ of technological changes. Building on the concept of path dependence, it is possible to demonstrate how introducing a closely related technology does not only become a low-risk course of action. Rather change is demanded (but not determined) as well as potential alternative systems being obscured. With decadent technologies, any future changes are not only dependent upon past introductions; but also they create a need for future changes. Such a view demonstrates how these technologies may not necessarily offer any improvements, but rather contribute to the creation of ongoing demand for unproven technologies. As a result they may encourage the introduction of increasingly complex technologies. 相似文献
120.