Site preference and alloying effect of Re atoms in the edge dislocation cores in Ni3Al

Using Cambridge sequential total energy package method based on the density functional theory, we investigated the site preference and alloying effect of Re atoms in the [1 0 0] (0 1 0) edge dislocation cores in Ni₃Al. Due to the introduction of a Re atom, the energetic and electronic structure of dislocation core systems have been changed a lot. The binding energy results suggest Re atom prefers Al site, especially the centre site in the centre-Al system, which can be explained by the results of Mulliken orbital population and density of states. When Re atom occupies the centre site in the centre-Al system, the DC system has the highest stability and stronger bonds formed between the Re atom and its nearest neighbouring atom due to hybridization of the Re-5d and Ni-3d orbitals.     

Structural,elastic, electronic,phonon and thermal properties of Ir3Ta and Rh3Ta alloys

We have studied the structural, elastic, electronic, phonon and thermodynamic properties of Ir₃Ta and Rh₃Ta alloys, using ab initio calculations. For the L1₂ phase, we report the calculated lattice constants, bulk modulus and elastic constants, and these values are compared with previously published values. We also derive the elastic constants from the values of the slopes of the acoustic branches in the phonon dispersion curves. The band structures show that both materials are metallic. The phonon dispersion curves, and their corresponding total and projected densities of states, are obtained using a linear response in the framework of the density functional perturbation theory. The specific heat capacity at constant volume and different temperatures is calculated, and this aspect is discussed using the quasi-harmonic approximation.     

Physiological Correlates of Choice‐Induced Dissonance: An Exploration of HPA‐Axis Responses

Choice can produce a negatively arousing cognitive conflict (called dissonance), which is thought to motivate the chooser to spread their preferences for the relevant options (called Spreading of Alternatives, or SA). The current work aimed to determine the relationship between HPA‐axis activity and both choice‐induced dissonance and its reduction (i.e. SA) among individuals with varying cultural backgrounds. European–Americans and Asians made a choice between two equally attractive CDs either in the presence of a cue indicative of social eyes (i.e. public‐choice condition) or in the absence thereof (i.e. private‐choice condition). As predicted, European–Americans and Asians showed a reliable SA primarily in the private and public choice conditions, respectively. Importantly, a sharp decline of salivary cortisol was observed over the span of 30 min, and, moreover, this decline was reliably predicted by the magnitude of SA regardless of either culture or the choice being private vs. public. These results suggest that although choice‐induced dissonance is too weak to elicit an HPA‐axis stress response, SA is associated with variability in the decline of salivary cortisol during the laboratory task. Copyright © 2015 John Wiley & Sons, Ltd.     

Religious education programme of the Catholic Church in Hong Kong: Challenges and responses since 1997

The Catholic Church, the largest school-sponsoring body in Hong Kong, is a major provider of religious schools and educational programmes. In 2006, the Catholic Diocese released its first centralised and comprehensive curricular document concerning religious and moral education (RME) in Catholic schools. Taking this programme as a reflection of the Church’s response to the challenges of a changing social milieu, severed church–state relations and shortcomings in Catholic education in post-1997 Hong Kong, this article reviews the framework and principles of the new curriculum. While retaining strong religious elements in its curriculum, the Catholic Church has widened and re-oriented its programme, and re-designed the contents and pedagogical methods. The new programme is characterised by adjustment and differentiation, upholding Christian faith, and selective absorption of Chinese culture. This article also discusses problems in the implementation of the new programme, including organisational compartmentalisation and an underdeveloped political dimension in the content.     

The role of work–family role integration in a job demands–resources model among Chinese secondary school teachers

The current study examines an integrative demands–resources model of the work–family interface in a sample of 259 Chinese secondary school teachers. Participants completed questionnaires relating to job demands, job resources, work‐to‐family conflict, work‐to‐family enrichment, work–family role integration (WFRI) and burnout scale. Results show that: (i) job demands were strongly and positively associated with work‐to‐family conflict, which further led to an increase in burnout; job resources were strongly and positively associated with work‐to‐family enrichment, and consequently to a decrease in burnout. Job demands also had a significant direct impact on burnout; (ii) a newly proposed construct, WFRI, was found to partially mediate the relationship between job demands and work‐to‐family conflict, as well as between job resources and work‐to‐family enrichment. Theoretical and practical implications are discussed, and future research directions are provided.     

Bridging separate communities: the aspirations and experiences of minority ethnic religious education teachers in England

This article takes as its starting point concerns about community separation that arose in 2001, following outbreaks of violence in English urban centres, and again in 2014, following the so-called ‘Trojan Horse’ case. Despite a series of reports which have highlighted the need to address ‘separation’, promote ‘meaningful contact’ between those who differ in terms of ethnicity and worldview and identify teachers of religious education (RE) as key players, researchers have paid no attention to teachers of RE from minority ethnic and religious backgrounds. The article draws on a qualitative study of teachers from Hindu, Muslim and Sikh backgrounds to explore their concerns about pupils’ perceptions of separation and the ways in which they attempted to address these in white majority and Muslim majority schools. Communication research and studies based on social capital theory are used to suggest that the teachers used ‘bonding’ and ‘bridging’ strategies as means of encouraging pupils to explore their perceptions of separation, engage in a mediated form of meaningful contact with ‘the Other’ and expand their thinking. The conclusion calls for further research in to the strategies reported and for policy makers to support the recruitment, training and career development of minority ethnic teachers of RE.     

生命性在句子加工中作用的ERP研究

生命性广泛地渗透到人类语言系统中发挥其作用。本文主要结合最新和经典的有关生命性的ERP研究探讨了生命性信息起作用的模式和时间进程。在句子加工过程中,生命性影响论元的加工并影响题元结构的建构和解释。以往研究表明,生命性违反有时引发的是N400效应,有时引发的是P600效应,少数情况还表现出N400-P600的双相模式。生命性在句子加工中的作用还跟多种变量存在交互作用,语境、题元可逆性、论元之间的语义关系、动词类型和其固有的题元结构都可能影响生命性信息起作用的模式。文章最后进行总结和展望,并提出未来研究仍有必要继续探讨生命性信息加工的时间神经动态性及其在句子加工中的具体作用机制。     

负面评价恐惧的性别差异:基于内隐和外显测量的比较

从内隐和外显两种角度探讨负面评价恐惧的性别差异。采用简式内隐联系测验(BIAT)和简明负面评价恐惧量表(BFNES)两种测量方法,实验共72名被试,每名被试先进行简式内隐联系测验,再完成简明负面评价恐惧量表,并借鉴不同方法对两种测量结果进行分析。结果发现:(1)被试的内隐负面评价恐惧与外显负面评价恐惧不存在显著相关,结果产生实验性分离;(2)负面评价恐惧不存在显著性别差异;(3)但有趣的是,不同性别被试内隐和外显负面评价恐惧的分离状况存在显著差异,其中男性的外显负面评价恐惧低于内隐负面评价恐惧,而女性的结果刚好相反,其外显负面评价恐惧高于内隐负面评价恐惧。这些结果表明被试的内隐和外显负面评价恐惧虽然不存在显著性别差异,但不同性别被试的内隐负面评价恐惧和外显负面评价恐惧内部存在不同的组合状况。     

The relationship between social anxiety and the perception of depth-ambiguous biological motion stimuli is mediated by inhibitory ability

Orthographically projected biological motion stimuli are depth-ambiguous. Consequently, their projection when oriented towards the viewer is the same as when oriented away. Despite this, observers tend to interpret such stimuli as facing the viewer more often. Some have speculated that this facing-the-viewer bias may exist for sociobiological reasons: Mistaking another human as retreating when they are actually approaching could have more severe consequences than the opposite error. An implication of this theory is that the facing-towards percept may be perceived as more threatening than the facing-away percept. Given this, as well as the finding that anxious individuals have been found to display an attentional bias towards threatening stimuli, we reasoned that more anxious individuals might have stronger facing-the-viewer biases. Furthermore, since anxious individuals have been found to perform poorer on inhibition tasks, we hypothesized that inhibitory ability would mediate the relationship between anxiety and the facing-the-viewer bias (i.e., difficulty inhibiting the threatening percept). Exploring individual differences, we asked participants to complete anxiety questionnaires, to perform a Go/No-Go task, and then to complete a perceptual task that allowed us to assess their facing-the-viewer biases. As hypothesized, we found that both greater anxiety and weaker inhibitory ability were associated with greater facing-the-viewer biases. In addition, we found that inhibitory ability significantly mediated the relationship between anxiety and facing-the-viewer biases. Our results provide further support that the facing-the-viewer bias is sensitive to the sociobiological relevance of biological motion stimuli, and that the threat bias for ambiguous visual stimuli is mediated by inhibitory ability.     

Properties of hypothesis testing techniques and (Bayesian) model selection for exploration‐based and theory‐based (order‐restricted) hypotheses

In this paper, the performance of six types of techniques for comparisons of means is examined. These six emerge from the distinction between the method employed (hypothesis testing, model selection using information criteria, or Bayesian model selection) and the set of hypotheses that is investigated (a classical, exploration‐based set of hypotheses containing equality constraints on the means, or a theory‐based limited set of hypotheses with equality and/or order restrictions). A simulation study is conducted to examine the performance of these techniques. We demonstrate that, if one has specific, a priori specified hypotheses, confirmation (i.e., investigating theory‐based hypotheses) has advantages over exploration (i.e., examining all possible equality‐constrained hypotheses). Furthermore, examining reasonable order‐restricted hypotheses has more power to detect the true effect/non‐null hypothesis than evaluating only equality restrictions. Additionally, when investigating more than one theory‐based hypothesis, model selection is preferred over hypothesis testing. Because of the first two results, we further examine the techniques that are able to evaluate order restrictions in a confirmatory fashion by examining their performance when the homogeneity of variance assumption is violated. Results show that the techniques are robust to heterogeneity when the sample sizes are equal. When the sample sizes are unequal, the performance is affected by heterogeneity. The size and direction of the deviations from the baseline, where there is no heterogeneity, depend on the effect size (of the means) and on the trend in the group variances with respect to the ordering of the group sizes. Importantly, the deviations are less pronounced when the group variances and sizes exhibit the same trend (e.g., are both increasing with group number).