Physical self-concept and disturbed eating attitudes and behaviors in French athlete and non-athlete adolescent girls: direct and indirect relations

This study aims to investigate the direct and indirect associations between physical self-subdomains, physical self-worth, global self-worth, and disturbed eating attitudes and behaviors among French non-elite athlete and non-athlete adolescent girls. A sample of adolescent girls including 50 ballet dancers, 41 basketball players, and 47 non-athletes was used in this study. Data obtained from the ballet dancer and basketball player subsamples revealed significant, sample-specific as well as common, direct relations between global and physical self-perceptions and disturbed eating attitudes and behaviors, as well as significant indirect relations (via global self-worth and physical self-worth) between specific physical self-perceptions and disturbed eating attitudes and behaviors. In contrast, no association was found between global and physical self-perceptions in the sample of non-athlete adolescent girls.     

纤维乳管镜临床应用中的问题与争议

纤维乳管镜主要应用于乳头溢液的诊断,提高了诊断的准确率,减小了手术切除范围,并修改了部分乳腺疾病的手术指征.但由于乳腺导管系统解剖的复杂性以及乳管镜本身的限制,乳管镜在乳腺导管内病变的切除、导管炎症治疗、乳腺癌筛查、保乳手术中辅助判定切缘等临床应用方面,尚存在诸多的问题与争议.     

纤维乳管镜的漏诊问题及其应对策略

虽然纤维乳管镜在病理性乳头溢液诊断中的临床应用已超过20年,但对于其临床价值仍存在争议,焦点之一为漏诊问题.通过文献复习,发现漏诊问题与乳管系统解剖的复杂性、乳管镜自身性能的限制、导管内癌的起源特点以及检查者的经验与操作技巧等多方面原因有关,目前尚难以完全避免. 针对上述原因采取相应措施,则可能有助于降低漏诊率,推动乳管镜技术的进一步应用.     

感知音乐音质的EEG探究

欣赏音乐是一种审美的体验活动,不同的音质会使人产生不同的感受。为探究音乐和EEG的关系,本文选用音乐《黑人舞曲》,运用主成分分析等方法,研究了11位在校大学生在欣赏不同音质音乐时的EEG特征。结果发现:在欣赏不同音质音乐时大脑皮层右颞等处快波功率差异显著。大脑对音乐的精细加工与大脑右颞等区的电活动密切相关。     

疼痛的心理学研究

心理学对疼痛的研究已经进行了几十年,成果颇丰。众多的研究已经证实了疼痛与基本心理过程之间的相互关系,包括注意、情绪、动机和记忆。除了基本心理过程外,社会因素也能够调节疼痛,如社会排斥、信仰、音乐、虚拟情境、金钱和权利等。已有疼痛研究中的疼痛测量方法过于主观,并且疼痛调节因素在临床中缺乏实践价值。当前疼痛研究呈现与具身思潮相结合的趋势,未来应更加重视发掘调节疼痛的社会因素。     

The relationship between need for closure and memory for schema-related information among younger and older adults

Two studies were conducted to examine the relationships among need for closure (NFC) and schematic information processing in younger and older adults. The results show increased NFC to be associated with less schematic processing (i.e., less memory for schema-consistent items, and more memory for schema-irrelevant items, out of all items memorized correctly), among older than younger adults. The findings of the studies are interpreted as demonstrating the age-associated deficit in information processing consistent with the level of NFC. Moreover, the results indicate that positive mood may play a role in facilitating information processing consistent with the level of NFC among older and younger adults. Finally, we present a framework for predicting when older adults will and will not effectively use schematic processing, considered a compensatory strategy for decline in cognitive abilities.     

Chinese consumer ethnocentrism: A field experiment

Consumer ethnocentrism presents barriers for internationalising organisations. In China, evidence of a resurgent nationalism partly fuelled by rapid economic growth portends a shift in consumption away from foreign towards domestic products. On the other hand, rising consumer demand for branded and luxury products cannot be fully met domestically. However, much of the available evidence on Chinese consumer ethnocentrism is anecdotal and is based on attitudinal surveys that, as accurate measures of actual purchasing behaviour, suffer from certain methodological issues. In response, we report an experiment that measures the ethnocentrism of 447 Chinese consumers as their incentive‐compatible choices between foreign and domestic products in a field setting. Our findings show little effect of foreign origin on subjects' choices that were only weakly related with attitudinal measures including the commonly used consumer ethnocentric tendencies scale (CETSCALE). Our results question the existence of ethnocentric consumer behaviour in China and the use of CETSCALE to gauge it generally. Copyright © 2012 John Wiley & Sons, Ltd.     

Assessing potential effects of daily cross-domain usage of information and communication technologies

ABSTRACT

A within-person diary research design with 39 full-time workers was used to examine the effects of daily cross-domain usage of information and communication technologies (ICTs) on job-related performance and stress in both workplace and home domains. Segmentation preference effects on links between cross-domain ICT usage and both job performance and job stress were also analyzed. A positive association was found for the first relationship in mixed home-workplace contexts, and a negative association for the second in home contexts only. A stronger segmentation preference effect on the negative relationship between cross-domain ICT usage and job stress was found for integrators (employees who integrate work and home domains) compared to separators (employees who separate work/non-work activities). Our findings suggest that daily cross-domain ICT usage can enhance job performance and reduce job stress, with a moderating effect of segmentation preference on the link between cross-domain ICT usage and job stress.     

《管子》中方位词研究

先秦重要文献《管子》方位词的使用情况显示了语言演变的历时进程。对于这些历史演变进行考察，不仅有助于梳理方位词系统的形成及历时的发展脉络，还可以增强对汉语方位词历史发展的认识和了解。     

An empirical Q-matrix validation method for the sequential generalized DINA model

As a core component of most cognitive diagnosis models, the Q-matrix, or item and attribute association matrix, is typically developed by domain experts, and tends to be subjective. It is critical to validate the Q-matrix empirically because a misspecified Q-matrix could result in erroneous attribute estimation. Most existing Q-matrix validation procedures are developed for dichotomous responses. However, in this paper, we propose a method to empirically detect and correct the misspecifications in the Q-matrix for graded response data based on the sequential generalized deterministic inputs, noisy ‘and’ gate (G-DINA) model. The proposed Q-matrix validation procedure is implemented in a stepwise manner based on the Wald test and an effect size measure. The feasibility of the proposed method is examined using simulation studies. Also, a set of data from the Trends in International Mathematics and Science Study (TIMSS) 2011 mathematics assessment is analysed for illustration.