Site preference and alloying effect of tungsten in the μ phase of Co7Mo6

The electronic structures of the μ phase of Co₇Mo₆ were investigated by means of first-principles calculation based on the density functional theory. The calculated equilibrium lattice parameters of Co₇Mo₆ are in good agreement with the experimental results. The results of calculation reveal that the addition of tungsten (W) promotes the stability of the μ phase of Co₇Mo₆ and W tends to participate in its formation. Through analysing the calculated electronic structure (partial density of states and charge density difference), it can be noted that a strong interaction exists due to d–d hybridization. Also, the majority of the atoms may contribute their valence electrons to the formation of metallic bonds in binary and ternary systems. Furthermore, the calculated results show that the doped W atom prefers to occupy the Co site in Co₇Mo₆ μ phase.     

大脑两半球功能不对称性与儿童学业成绩

本研究调查了 3 1 8名小学一至三年级学生大脑两半球优势情况 ,然后对不同优势半球学生的语文和数学成绩进行了比较。结果发现优势半球为右半球的学生人数较少 ,只有 3 .8% ,明显少于优势半球为左半球的学生 (χ2 =2 3 9.83 0 ,p<0 .0 0 1 )。对不同优势半球学生的语文和数学成绩的比较 ,未发现两者有显著差异 (语文 :F=1 .1 3 0 ,p>0 .0 5 ;数学 :F=0 .5 75 ,p>0 .0 5 )。     

学习困难儿童的问题解决特点研究

本研究选取学习困难儿童和正常儿童各 3 2名 ,设置河内塔问题解决的情境 ,采用临床观察法 ,对学习困难儿童在问题解决中的特点作了初步的探究。研究发现 :1与正常儿童相比 ,学习困难儿童在发现和有效运用策略方面明显不足 ,但当学习困难儿童对问题情境比较熟悉后 ,有明显的进步 ;2一定的提示并不能帮助学习困难儿童最有效地应用策略。     

互依性与团队协作

互依性是指团队成员在完成作业的过程中相互依赖的程度,分为作业互依性和产出互依性两大类。该文全面的阐述了互依性的概念、分类和测量方法,并重点介绍了20世纪90年代以后有关互依性在团队协作领域中的研究结果。总结发现,两类互依性与很多团队变量均有显著相关,特别是团队的结果变量。在对结果变量的影响上,两类互依性存在交互作用,或互依性与其他变量存在交互作用。文章最后提出了目前研究的局限性,以及未来的研究展望     

Repeated Play Reduces Video Games’ Ability to Elicit Guilt: Evidence from a Longitudinal Experiment

Statements supported mostly by correlational and cross-sectional studies suggest that playing violent video games can cause emotional desensitization. A longitudinal experiment examined a) whether repeated violent game play leads to emotional desensitization and b) whether desensitization generalizes to other play and real-life experiences. Participants played alternative versions of the same violent game for the first four days; on these days, the character role was varied between-subjects to be moral (United Nations soldier) or immoral (terrorist soldier). On Day 5, all participants played a novel game as a terrorist. Results indicate two things. First, habituation occurs over repeated game play: Repeated exposure decreased the ability of the original game to elicit guilt. Second, the decreased ability to elicit guilt can generalize to other game-play experiences: Guilt elicited by the novel game on Day 5 was reduced for the immoral character condition compared to the moral character condition. The current study provides causal, longitudinal evidence regarding the potential for video game play to lead to emotional desensitization with regard to future video game-play experiences.     

Enhanced music sensitivity in 9-month-old bilingual infants

This study explores the influence of bilingualism on the cognitive processing of language and music. Specifically, we investigate how infants learning a non-tone language perceive linguistic and musical pitch and how bilingualism affects cross-domain pitch perception. Dutch monolingual and bilingual infants of 8–9 months participated in the study. All infants had Dutch as one of the first languages. The other first languages, varying among bilingual families, were not tone or pitch accent languages. In two experiments, infants were tested on the discrimination of a lexical (N = 42) or a violin (N = 48) pitch contrast via a visual habituation paradigm. The two contrasts shared identical pitch contours but differed in timbre. Non-tone language learning infants did not discriminate the lexical contrast regardless of their ambient language environment. When perceiving the violin contrast, bilingual but not monolingual infants demonstrated robust discrimination. We attribute bilingual infants’ heightened sensitivity in the musical domain to the enhanced acoustic sensitivity stemming from a bilingual environment. The distinct perceptual patterns between language and music and the influence of acoustic salience on perception suggest processing diversion and association in the first year of life. Results indicate that the perception of music may entail both shared neural network with language processing, and unique neural network that is distinct from other cognitive functions.     

Observers' Language Proficiencies and the Detection of Non‐native Speakers' Deception

We examined whether observers' language proficiencies affected their abilities to detect native and non‐native speakers' deception. Native and non‐native English speakers were videotaped as they either lied or told the truth about having cheated on a test. A total of 284 laypersons—who were either native or non‐native English speakers themselves—viewed these videos and indicated whether they believed that the speakers were being truthful or deceptive. Observers were more accurate when judging native speakers than when judging non‐native speakers, suggesting that perceptual fluency aided deception detection. Although there was no effect of observers' language proficiencies on discrimination, their belief that interviewees were telling the truth increased with proficiency. On the whole, these findings suggest that non‐native speakers may be at greater risk of being incorrectly classified in forensic contexts.Copyright © 2017 John Wiley & Sons, Ltd.     

Are All Kids Alike? The Magnitude of Individual Differences in Personality Characteristics Tends to Increase from Early Childhood to Early Adolescence

Do individual differences in personality traits become more or less pronounced over childhood and adolescence? The present research examined age differences in the variance of a range of personality traits, using parent reports of two large samples of children from predominantly the USA and Russia, respectively. Results indicate (i) that individual differences in most traits tend to increase with age from early childhood into early adolescence and then plateau, (ii) that this general pattern of greater personality variance at older childhood age is consistent across the two countries, and (iii) that this pattern is not an artefact of age differences in means or floor/ceiling effects. These findings are consistent with several (noncontradictory) developmental mechanisms, including youths' expanding behavioural capacities and person–environment transactions (corresponsive principle). However, these mechanisms may predominantly characterize periods before adolescence, or they may be offset by countervailing processes, such as socialization pressure towards a mature personality profile, in late adolescence and adulthood. Finally, the findings also suggest that interpreting age trajectories in mean trait scores as pertaining to age differences in a typical person may sometimes be misleading. Investigating variance should become an integral part of studying personality development. Copyright © 2017 European Association of Personality Psychology     

中国传统义利观的诠释学审视

“义利”问题是关乎人类社会伦理生活的基本问题.从诠释学的角度对“义”与“利”的原义考察、“义利关系”的深意挖掘、“义利观”的时代意蕴找寻是一种新的诠释重建.这种新的诠释重建有利于中国传统义利观的现代转换.     

心理学非人性化和人性化的矛盾与冲突

心理学自1879年独立以来,由于种种原因,其发展一直存在着非人性化与人性化的矛盾与冲突,而这种矛盾与冲突所带来的最严重的后果是导致心理学出现了分裂,心理学成为了一门学派纷争、理论对立、组织分裂的学科。该文着重分析了心理学的两大研究范式间和科学主义心理学本身中所存在的非人性化与人性化的矛盾与冲突,希望借此能对我国心理学的发展有所启示。