Ab initio pseudopotential studies on an Al Σ = 9 grain boundary: Effects of Na and Ca impurities

The electronic properties of an Al = 9 tilt grain boundary with segregated Na and Ca impurity atoms have been calculated by a first-principles pseudopotential method. The results show that the boundary expands and the charge density decreases significantly over the whole boundary by the segregation of Na and Ca, and there are no stronger bonds than those associated with metallic bonding in the boundary even with the impurities. It is concluded that the embrittlement promotion mechanism by Na or Ca segregation in the Al boundaries is one kind of 'decohesion model'.     

Unusual stress behaviour of CeO2-doped diamond-like carbon nanofilms

CeO₂-doped diamond-like carbon (DLC) films with thicknesses of 180–200 nm were deposited by unbalanced magnetron sputtering. When the CeO₂ concentration is in the range 5–8%, the residual compressive stress of the deposited films is reduced by 90%, e.g. from about 4.1 GPa to 0.5 GPa, whereas their adhesion strength increases. These effects are attributed to the dissolution of CeO₂ within the DLC amorphous matrix and a widening interface between the DLC film and the Si substrate, respectively.     

Deformation twins induced by multi-mode deformation in nanocrystalline copper

A multi-mode deformation model is used in a molecular dynamics simulation of nanocrystalline copper. Abundant deformation twin lamellae are developed by shearing the following compression to the elastic limit. Deformation twins (DTs) nucleate through two different mechanisms facilitated by Shockley partial slips. Interactions between DTs and Shockley partials are observed in this simulation.     

Examination of a Perceived Cost Model of Employees’ Negative Feedback-Seeking Behavior

The present study extends the feedback-seeking behavior literature by investigating how supervisor-related antecedents (i.e., supervisors’ expert power, reflected appraisals of supervisors, and supervisors’ emotional intelligence) influence subordinates’ negative feedback-seeking behavior (NFSB) through different cost/value perceptions (i.e., expectancy value, self-presentation cost, and ego cost). Using data collected from 216 supervisor-subordinate dyads from various industries in Taiwan, we employ structural equation modeling analysis to test our hypotheses. The results show that expectancy value mediates the relationship between supervisor expert power and subordinates’ NFSB. Moreover, self-presentation cost mediates the relationship between reflected appraisals of supervisors’ and subordinates’ NFSB. Theoretical and practical implications of this study are also discussed.     

大学生人际信任半径与信任水平研究

自编《大学生内-外信任问卷》,考察大学生人际信任半径和信任水平的现状,结果表明:(1)问卷具有良好的信度和效度;(2)男生的信任半径大于女生,信任水平低于女生;(3)学生干部的信任半径小于非学生干部,信任水平高于非学生干部;(4)大学生信任半径随着消费水平的升高而减小;(5)高年级学生的信任半径大于低年级学生,信任水平却低于低年级学生;(6)信任半径和信任水平呈现出相反的变化趋势。     

择偶与人类嗓音

本文对择偶与人类嗓音之间的关系进行了深入分析。首先, 人类具有普遍的异性嗓音偏好：男性偏爱高音调的女性嗓音, 女性偏爱低音调的男性嗓音, 这种普遍偏好受到一系列跟自身婚配价值有关的因素的调节。其次, 人类的嗓音偏好跟嗓音背后的进化意义密切关联：女性化嗓音是女性生育力的线索, 而男性化嗓音是男性好基因和好资源的线索。而且, 富有吸引力的男性嗓音和女性嗓音能够预测个体的性行为和繁殖成功。再次, 富有有吸引力的人类嗓音影响个体的社会认知, 对亲密关系的维系也会带来消极影响。最后, 我们探讨了未来研究的若干方向：研究基频之外的其他嗓音参数, 探讨嗓音偏好的性选择机制、特殊群体的嗓音偏好, 以及嗓音偏好与其他认知过程的关系。     

An investigation of spatial representation of pitch in individuals with congenital amusia

Spatial representation of pitch plays a central role in auditory processing. However, it is unknown whether impaired auditory processing is associated with impaired pitch–space mapping. Experiment 1 examined spatial representation of pitch in individuals with congenital amusia using a stimulus–response compatibility (SRC) task. For amusic and non-amusic participants, pitch classification was faster and more accurate when correct responses involved a physical action that was spatially congruent with the pitch height of the stimulus than when it was incongruent. However, this spatial representation of pitch was not as stable in amusic individuals, revealed by slower response times when compared with control individuals. One explanation is that the SRC effect in amusics reflects a linguistic association, requiring additional time to link pitch height and spatial location. To test this possibility, Experiment 2 employed a colour-classification task. Participants judged colour while ignoring a concurrent pitch by pressing one of two response keys positioned vertically to be congruent or incongruent with the pitch. The association between pitch and space was found in both groups, with comparable response times in the two groups, suggesting that amusic individuals are only slower to respond to tasks involving explicit judgments of pitch.     

The phenomenology of respect: with special attention to Kant,Scheler, and Confucianism

In this paper, I focus on analyzing the manifestation and significance of respect. I first illustrate the two (or three) meanings of jing 敬 and their connection in Confucian classical texts, which is helpful to understand the Confucian phenomenology of respect. The two (or three) meanings are (1) seriousness as a mind-state and (2) respect (and attention) as an intentional feeling. After clarifying this point, I undertake a phenomenological analysis of respect, in order to show that respect helps one to achieve moral pursuit. This analysis takes the Kantian notion of respect as a starting point but further is accomplished by the phenomenology of value and feeling. The respect for duties and affairs, the respect for personhood and dignity, and the respect for the worthy with merit motivate one to take moral actions. For example, respect contributes in taking one’s duties seriously, appreciating human beings’ spiritual values and good tendencies even when they have not been actualized, supporting the worthy to play a role (offering them important positions), and emulating the worthy to make a contribution and serve others. In Subsequently, I clarify how respect helps one to achieve religious pursuit in one form of Christianity, in light of Max Scheler’s discussion on humility and reverence. Through revering God one respects others; through serving God and participating in God’s humble spirit one serves others. I elucidate the Confucian classics’ discussions on religious experience, in order to show how respect helps one to achieve religious pursuit in one form of Confucianism, and how it is similar and different from Max Scheler’s clarification. The concrete relation between respect and li 禮 in the Confucian tradition will be treated in another work.     

西方心理表象技术研究的昨天、今天与明天

心理表象技术是指以呈现和操控心理表象为方式,达成心身健康目的的心理技术。研究梳理西方心理表象技术研究的历史,整理出十种比较体系化、有应用价值的心理表象技术;概要介绍了该技术在医疗护理、临床心理、教育、体育、社会工作方面所取得的成效,及其有效的技术操作机制。最后,在新近的相关实验结论基础上,笔者提出"心理表象环境论"作为其有效机制的理论解释框架。     

情绪感染问卷的中国化修订与信效度检验

该研究旨在编制情绪感染问卷并探讨问卷的信度与效度,问卷以Doherty编制的《情绪感染问卷》(the emotional contagion scale)作为蓝本,删除了不适合东方文化的项目,增加了符合中国人的情绪情境和展现情绪方式的项目,经过预测修订后,最终问卷包含5个维度25个项目,正式施测共回收747份有效问卷,并对数据进行了信效度检验。结果表明,探索性因素分析KMO为0.802,总问卷的标准化的Cronbach’sα系数为0.852,项目分析表明项目的鉴别指数D值在0.340~0.479之间,验证性因素分析具有较好的模型拟合度,问卷的重测信度与效标关联效度均达到显著水平。情绪感染问卷的信效度均达到了测量学的要求。