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Fifty circular lights differir.g in diameter from 4 to 53 cm and increasing by 1 cm were presented 135 times each to five Ss who were asked to identify each circle. Presentations were in random order. Indices of information transmission (T), response equivocation H S(R), and response uncertainty H(R) were calculated for different phases of the experiment for individual and pooled (across Ss) responses. Results have shown systematic rising of transmission and lowering of H S(R), while H(R) remained almost constant. All transmission indices calculated from pooled responses were systematically lower than comparable indices calculated from individual responses. Individual and pooled T values calculated from all responses given during the experiment were not representative for the level of identification performance at the end of the experiment. Conclusions were reached that (1) channel capacity indices should not be calculated from all individual responses given during the experiment or from pooled responses of different Ss, and (2) indices of channel capacity should be calculated only after the performance of Ss has reached a final and stable level, which means after enough repetitions of each stimulus. 相似文献
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235.
Brasić JR Zagzag D Kowalik S Prichep L John ER Liang HG Klutchko B Cancro R Sheitman BB Buchsbaum M Brathwaite C 《Psychological reports》1999,84(1):239-246
We present the case of a young man with a diagnosis of a childhood-onset pervasive developmental disorder who developed a progressive neurologic deterioration with persistent catatonia and right hemiparesis. On his initial evaluation approximately three years after the onset of mutism, he manifested right hemiparesis and catalepsy. Two years later, although catalepsy had subsided, motor function had deteriorated so that he could not use his hands to feed or dress himself. Oral-facialbuccal dyskinesia manifested by blepharospasm and grimacing were present constantly during waking hours. Quantitative electroencephalography demonstrated markedly decreased amplitude, a finding associated with catatonia. Left sural nerve biopsy indicated large axon cylinder degeneration. Left deltoid biopsy demonstrated perimysial fibrosis and type II fiber predominance. Although magnetic resonance imaging of the head without contrast was normal, positron emission tomography indicated hypometabolism of the right cerebral and the right cerebellar hemispheres. The patient continues to deteriorate despite a course of 25 electroconvulsive treatments. He continues to manifest criteria for catatonia including motoric immobility, mutism, and peculiarities of voluntary movement such as prominent grimacing. We suspect an inherited neurodegenerative disorder. Since catatonia is a treatable condition frequently associated with medical and neurological diseases, examination for the features of catatonia must be included in the assessment of patients with progressive brain degeneration. This report is an attempt to clarify the traits of a serious variant of progressive brain degeneration. 相似文献
236.
Theoretical Medicine and Bioethics - 相似文献
237.
Vuko Andrić 《Ratio》2017,30(1):72-87
This paper argues that objective consequentialism is incompatible with the rationales of ‘ “ought” implies “can” ’ – with the considerations, that is, that explain or justify this principle. Objective consequentialism is the moral doctrine that an act is right if and only if there is no alternative with a better outcome, and wrong otherwise. An act is obligatory if and only if it is wrong not to perform it. According to ‘ “ought” implies “can” ’, a person is morally obligated to φ only if the person can φ. The rationales of ‘ “ought” implies “can” ’ include considerations related to intuitive plausibility, action‐guidance, blameworthiness and fairness, and the nature of practical reasons. 1 相似文献
238.
This research experimentally investigated whether virtual reality experience can prompt greater empathy and whether greater engagement with a virtual reality connects this virtual reality experience to empathy. Randomly assigned participants viewed a documentary featuring a young girl living in a refugee camp either in a virtual reality format or in a control two-dimensional format. Results indicated that the virtual reality experience resulted in greater engagement and a higher level of empathy for the refugee girl compared to the control condition. Greater engagement was a process connecting the virtual reality experience to empathy. Virtual reality has the potential to influence interpersonal emotions such as empathy. 相似文献
239.
Ron Roberts Majda Bećirević Tracy Baker 《International Journal of Children's Spirituality》2009,14(1):17-30
Sixty‐one children (aged 9–17) from the United Kingdom (31) and Bosnia (30) were interviewed about the war in Iraq. Significant differences emerged in their views of the war. The Bosnian children were more affected by the Iraq War, more aware of who is involved in it, had different views about its causes, viewed the consequences of the war with greater gravity, and expressed a greater desire to end war and have peace. Two factors which might account for these differences – recent Bosnian history and the nature of media representations of the war in the two countries – are discussed. 相似文献
240.
The study of arousal and attention could be of prominent importance for elucidating both fundamental and practical aspects
of the mind–brain puzzle. Defined as “general activation of mind” (Kahnemann in Attention and effort. Prentice-Hall, New Jersey,
1973), or “general operation of consciousness” (Thacher and John in Functional neuroscience: foundations of cognitive processing.
Erlbaum, Hillsdale, 1977), arousal can be considered as a starting point of fundamental research on consciousness. Similar role could be assigned
to attention, which can be defined by substituting the attributes “general” with “focused”. Concerning the practical applications,
the empirically established correlation between neuronal oscillations and arousal/attention levels is widely used in research
and clinics, including neurofeedback, brain–computer communication, etc. However, the neurophysical mechanism underlying this
correlation is still not clear enough. In this paper, after reviewing some present classical and quantum approaches, a transition
probability concept of arousal based on field–dipole quantum interactions and information entropy is elaborated. The obtained
analytical expressions and numerical values correspond to classical empirical results for arousal and attention, including
the characteristic frequency dependence and intervals. Simultaneously, the fundamental (substrate) role of EEG spectrum has
been enlightened, whereby the attention appears to be a bridge between arousal and the content of consciousness. Finally,
some clinical implications, including the brain-rate parameter as an indicator of arousal and attention levels, are provided. 相似文献