教育神经科学:探究人类认知与学习的一条整合式途径

教育神经科学是第二代认知科学对人的具身认知进行认识深化的必然产物,也是不同层面研究以整合态势来研究教育情境中人的认知过程及其发展的当然结果。在认知神经科学与教育已有的良好沟通下,教育神经科学就是要通过教育学家、心理学家、神经科学家等的合力,借助多种技术(包括脑成像技术),多视角、多层面地分析人的心理活动,以求最终达到科学改进教育理论及其做法的目的。不可否认,本研究领域还存在一些问题;但这并不会就此阻止教育学、心理学、神经科学加快合作与融合的步伐。     

真之收缩论述评

真之收缩论是关于“真的收缩处理的理论”,其目的在于降低对传统真理论的高期望,主要包括冗余论、代语句理论、极小主义理论等。它们的共同点在于认为真是没有本质的,但在对真的具体解释上则存在不同的角度和方法。收缩论者并非认为“真的”这一谓词不重要,只是,他们对“真的”的理解更注重逻辑和形式的色彩。     

监狱男性警察情绪智力对情绪劳动的影响分析

为了解广州市监狱基层警察的情绪劳动与情绪智力的关系,采用随机抽样法对100名监狱基层警察进行问卷调查。结果表明:①情绪劳动与情绪智力呈正相关关系,相关系数为0.628(P0.01)②情绪智力对深层表现的正效应大于对表层表现和自然表现的正效应,说明情绪智力在促进深层行动方面具有更重要的作用。③在情绪劳动中,深层表现需要较高的情绪智力,而自然表现需要较低的情绪智力。结论:监狱基层警察的情绪劳动是中等水平,情绪智力水平是中等偏上,并且两者呈显著性正相关。因此,提高监狱警察的情绪智力水平,优化情绪劳动表现策略的运用,从而促进罪犯监管工作和教育改造工作顺利进行。     

论互联网影响下的人际关系

互联网的崛起带来了一种新型的人际关系。它的形成和发展正在从根本上改变人类的生产和生活方式,同时也对现代的人际关系产生了重大影响。本文从互联网的交往动机,互联网的人际关系特点,互联网对人际关系的影响,提高互联网人际关系的健康性的角度入手,探讨了互联网是如何影响人际关系的。并提出建立健康的网络人际关系的方法:正确运用网络、保证网络的健康与安全、树立正确的网络交往态度。     

高校教师组织承诺问卷的编制

本研究采用访谈法和问卷调查法对高校教师的组织承诺进行研究,并编制了符合我国高校实际情况的高校教师组织承诺问卷。探索性因素分析的结果表明,高校教师组织承诺是一个四因素的结构,具体包括:情感承诺、规范承诺、价值承诺和投入承诺。内部一致性分析及验证性因素分析的结果表明,高校教师组织承诺问卷具有较好的信度与效度。     

New insights on tensile plasticity of ultrafine-grained metallic materials

ABSTRACT

The tensile properties of TiNi_43.5Fe_6.5 alloy samples having different grain sizes (0.16, 0.35, 1.7, 2.3, and 3.9?μm) and fabricated by severe plastic deformation and annealing were investigated. It was observed that both the strength and the elongation of the alloy increase with a decrease in the grain size until the average size reaches 1.7?μm. However, for average grain sizes smaller than 1.7?μm, the elongation decreases continuously with further grain refinement. On the other hand, the strain-hardening rate does not decrease with the decrease in plasticity but instead increases slightly. The poor ductility of the ultrafine-grained TiNi_43.5Fe_6.5 alloy is accompanied by a high degree of strain hardening. This newly observed ductility behaviour of the ultrafine-grained TiNi_43.5Fe_6.5 alloy is elucidated by characterising the intragranular and grain boundaries.     

Experimental investigations of TB2 alloy by pack boriding with rare-earth oxides

ABSTRACT

An orthogonal test with four factors, namely temperature, time, type of rare-earth oxides (REOs) and REO content, was performed to obtain the optimised boriding parameters of TB2 alloy by pack boriding with REOs. It is found that temperature has the strongest effect on the boride layer thickness, while time has the strongest effect on the surface hardness and coefficient of friction. The optimum parameters for pack boriding of TB2 alloy with REO are a temperature of 1373?K, a time of 20?h, La₂O₃ as the REO with a content of 4?wt.%.     

不同参数分布形态下GIRM方法和传统GT方法的对比研究

GIRM(Generalizability in Item Response Modeling)是一种将概化理论GT和项目反应理论IRT相结合后计算概化理论中方差分量的一种方法.当GIRM方法下θp和βi的抽样分布与GIRM方法中的MCMC先验分布一致时,GIRM方法对方差分量估计具有较高的准确性.为了进一步检验GIRM方法对IRT参数分布形态的敏感性,研究在将MCMC先验分布固定的情况下,探讨不同IRT参数分布形态下GIRM方法的适用性,并将所得结果与传统GT方法相比较.结果表明:(1)在各种参数分布形态下,采用GIRM方法估计IRT模型的参数是可行的;(2)GIRM方法在被试能力参数为标准正态分布时对σ2(p)估计的准确性高于传统GT方法,但在均匀分布和偏态分布下略差于传统GT方法;(3) GIRM方法在题目难度参数为偏态分布情况下对σ2(i)的估计准确性显著差于传统GT方法;(4)两种方法对于σ2(pie)估计的准确性在任何参数分布形态下都大致相当,优劣并无统一规律.     

A Personal Synthesis of Social Construction and Phenomenology

In this essay, I narrate five short stories about how I have encountered and struggled with social construction and phenomenology, as well as my ongoing synthesis of the two perspectives.     

Effects of Image Preprocessing on Face Matching and Recognition in Human Observers

In person identification, recognition failure due to variations of illumination is common. In this study, we employed image‐processing techniques to tackle this problem. Participants performed recognition and matching tasks where the face stimuli were either original images or computer‐processed images in which shading was weakened via a number of image‐processing techniques. The results show that whereas recognition accuracy in a memory task was unaffected, some of the techniques significantly improved the identification performance in a face‐matching task. We conclude that relative to long‐term face memory, face matching is more susceptible to discrepancy of shading in different images of a face. Reducing the discrepancy by certain preprocessing techniques can facilitate person identification when original face images contain large illumination differences. Copyright © 2013 John Wiley & Sons, Ltd.