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教师信息自觉的内涵分析及评价机制改进
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作者 冉启木 《教育信息技术》 2018年第7期54-56,共3页
教师信息自觉是指教师基于教育信息化的自我认识与自我觉解,是自觉水平,而不是自发行为,新时代下的教育信息化需要首先解决教师信息自觉问题。本文在阐述新时代教育信息化特征及教师信息自觉概念的基础上,从理论与实践层面和教师信息素... 教师信息自觉是指教师基于教育信息化的自我认识与自我觉解,是自觉水平,而不是自发行为,新时代下的教育信息化需要首先解决教师信息自觉问题。本文在阐述新时代教育信息化特征及教师信息自觉概念的基础上,从理论与实践层面和教师信息素养内涵层面探讨教师信息自觉,理论与实践层面分为理论自觉、实践自觉与价值自觉;教师信息素养层面分为信息意识自觉、信息能力自觉与信息文化自觉。现实中的评价机制,对教师信息自觉的激发性不强,改进评价机制,以引领性评价唤醒、激发教师的信息自觉。 展开更多
关键词 教育信息 教师信息自觉 引领性评价
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信息道德建设刍议 被引量:4
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作者 张立彬 齐景红 《图书与情报》 CSSCI 2006年第3期19-21,117,共4页
信息技术的飞速发展在给社会带来福祉的同时,也产生了众多的社会问题。其中,信息道德问题日益突出,已成为社会密切关注和认真研究的重要课题。为确保信息社会的和谐发展,信息道德的建设势在必然、不可或缺。文章通过分析阐述信息道德的... 信息技术的飞速发展在给社会带来福祉的同时,也产生了众多的社会问题。其中,信息道德问题日益突出,已成为社会密切关注和认真研究的重要课题。为确保信息社会的和谐发展,信息道德的建设势在必然、不可或缺。文章通过分析阐述信息道德的概念及社会中存在的信息道德失范现象,分别针对信息道德意识、信息道德规范和信息道德行为三个方面提出了一些意见和看法,以期对我国目前的信息道德建设有所助益。 展开更多
关键词 信息道德意识 信息道德规范 信息道德自觉 信息道德建设
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数字化时代图书馆馆员信息素质的提升
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作者 贾学丽 《教育教学论坛》 2012年第21期111-112,共2页
数字化时代,馆员的信息素质成为影响图书馆发展的主导性因素。与数字化建设的要求相比,馆员在信息意识、信息知识、信息技能、信息自觉等多方面存在着明显差距。为此,应有计划、有层次、有步骤地提升馆员的信息素质,为图书馆持续发展提... 数字化时代,馆员的信息素质成为影响图书馆发展的主导性因素。与数字化建设的要求相比,馆员在信息意识、信息知识、信息技能、信息自觉等多方面存在着明显差距。为此,应有计划、有层次、有步骤地提升馆员的信息素质,为图书馆持续发展提供人力资源保证。 展开更多
关键词 图书馆员 信息意识 信息知识 信息能力 信息自觉
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Cardiac Neurons Firing Preceding Cortical Neurons Firing by Variable Time Equivalent to RP before Conscious Act
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作者 Amna A1Faki 《Journal of Philosophy Study》 2011年第4期305-309,共5页
The signals and the neuronal mechanisms that underlying the behavior, actions, and action-directed goals in man and animals during conscious state are not fully understood, and the neuro-dynamic mechanisms and the sou... The signals and the neuronal mechanisms that underlying the behavior, actions, and action-directed goals in man and animals during conscious state are not fully understood, and the neuro-dynamic mechanisms and the source of these neuronal signals are not authenticated. Temporal judgment alone can neither account for neural signaling necessary for emergence of conscious act nor explain RP (Readiness Potential, the accepted neural correlate time needed for the neurons to fire) that precedes the onset of action or the latency time of 0.5 ms that precedes the conscious act found by Libet. Neuronal feedback mechanisms between the heart and the brain seem feasible and logical suggestions to be considered, so clearly, I would suggest that the onset of a conscious-directed goal, conscious action, freewill, intension, and the neural signals and mechanisms that control them may depend upon the interaction between two sources: (1) the brain and (2) the heart. The temporal-cardiac (neural system) interaction has been well established in heart-brain interaction studies by many workers who found that the work of the heart precedes that of the brain in EEG (electroencephalography) findings in conscious stimulation, which may explain and account for RP time and the 0.5 ms latency period of Libet's important findings. According to my hypothesis (AlFaki 2009) and views, the temporal neurons in the soma to-sensory cortex will respond to conscious stimulation only after receiving neuronal signals from the cardiac neurons in the neural plexus of the heart; after variable millisecond equivalent to RP or Libet's latency period prior to temporal neuronal firinging in response to conscious act, this time is the time needed by cardiac neurons to process and signal information to the brain through feedback mechanism and heart-brain interaction. 展开更多
关键词 feedback mechanisms latency period RP (Readiness Potential) freewill INTENSION consciousness cognition neural plexus heart-brain interaction
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Food Color Memory and Names- A Linguistic Vantage
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作者 Jodi Louise Sandford 《Journal of Life Sciences》 2011年第8期654-660,共7页
We name colors of foods with great ease. This process is conventionalized through our cultures and our biological dictates. People identify food colors through words that are again highly constrained. Embodiment of ex... We name colors of foods with great ease. This process is conventionalized through our cultures and our biological dictates. People identify food colors through words that are again highly constrained. Embodiment of experience and perception deals with these constraints to make color term use a cognitively economical mechanism, keeping numbers of concepts in mind through categorial conceptualization in long term memory. The parallel process that puts together our linguistic and visual information, allows the individual to map a correspondence between the two frames. The result of this mapping is a "cognitive color" in long term color memory. This paper presents an experiment in triggering long term memory and the response results. The objective was to verify whether individuals' cognitive color of well known foods, both raw and cooked, that they had just identified with Natural Color System (NCS) color samples, would be predominantly a primary basic color term, a secondary basic color term, or a complete descriptive utterance. The name used to communicate a desired signification is accessed through the judgement of similarity and difference with a point of reference. In this case, the food color vantage represents the cognitive color remembered. 展开更多
关键词 Cognitive color basic color terms cognitive linguistic constraints linguistic vantage.
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ADAPTIVE RECONSTRUCTION TECHNIQUE FOR THE LOST INFORMATION OF THE RECTANGULAR IMAGE AREA
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作者 ShiRong LiXiaofeng LiZaiming 《Journal of Electronics(China)》 2004年第2期127-134,共8页
The adaptive reconstruction for the lost information of the rectangular image area is very important for the robust transmission and restoration of the image. In this paper, a new reconstruction method based on the Di... The adaptive reconstruction for the lost information of the rectangular image area is very important for the robust transmission and restoration of the image. In this paper, a new reconstruction method based on the Discrete Cosine Transform (DCT) domain has been put forward. According to the low pass character of the human visual system and the energy distribution of the DCT coefficients on the rectangular boundary, the DCT coefficients of the rectangular image area are adaptively selected and recovered. After the Inverse Discrete Cosine Transform (IDCT), the lost information of the rectangular image area can be reconstructed. The experiments have demonstrated that the subjective and objective qualities of the reconstructed images are enhanced greatly than before. 展开更多
关键词 Recovery of the Discrete Cosine Transform(DCT) coefficients Inverse DCT (IDCT) Human visual character The image information loss Adaptive reconstruction
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