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81.
A numerical model is proposed to simulate fracture induced by the coalescence of numerous microcracks, in which the condition for coalescence between two randomly nucleated microcracks is determined in terms of a load-sharing principle. The results of the simulation show that, as the number density of nucleated microcracks increases, stochastic coalescence first occurs followed by a small fluctuation, and finally a newly nucleated microcrack triggers a cascade coalescence of microcracks resulting in catastrophic failure. The fracture profiles exhibit self-affine fractal characteristics with a universal roughness exponent, but the critical damage threshold is sensitive to details of the model. The spatiotemporal distribution of nucleated microcracks in the vicinity of critical failure follows a power-law behaviour, which implies that the microcrack system may evolve to a critical state. 相似文献
82.
Hongsheng Yang Fang Wang Nianjun Gu Xiao Gao Guang Zhao 《Psychonomic bulletin & review》2013,20(6):1176-1180
Eye-tracking technique and visual search task were employed to examine the cognitive advantage for one’s own name and the possible effect of familiarity on this advantage. The results showed that fewer saccades and an earlier start time of first fixations on the target were associated with trials in which participants were asked to search for their own name, as compared to search for personally familiar or famous names. In addition, the results also demonstrated faster response times and higher accuracy in the former kind of trials. Taken together, these findings provide important evidence that one’s own name has the potential to capture attention and that familiarity cannot account for this advantage. 相似文献
83.
探讨个人幸福指数-中小学生版(PWI-SC)在中国的适用性以及中澳两国中学生个人幸福指数的跨文化差异。采用PWI-SC施测522名中国中学生、185名澳洲中学生,进行区分度、信度和效度检验,发现该问卷可运用于中国中学生个人幸福指数的调查,个别项目需稍加修改。比较中澳中学生的施测结果,中国中学生的个人幸福指数低于澳洲中学生,中国中学生得分为47-70,澳洲中学生得分为51-72;中国中学生除在个人已有成就项目上得分高于澳洲中学生外,其他方面均较低;中澳两国初中生的个人幸福指数均显著高于高中生,两国初高中生个人幸福指数的差异体现在不同方面;中澳两国中学生个人幸福指数的年龄差异均显著,进一步事后分析发现,两国中学生个人幸福指数的基本趋势均为随年龄增长,个人幸福指数降低,中国15岁中学生的个人幸福指数较高。PWI-SC基本适用于中国中学生;中学生随年龄增长,个人幸福指数降低;中国中学生的个人幸福指数低于澳洲中学生。 相似文献
84.
Although attentional biases toward body-related information contribute to the etiology and maintenance of body dissatisfaction (BD) and eating disorders (EDs), attentional disengagement in women with BD and EDs is not clear. The present study investigated the association between weight dissatisfaction and attentional disengagement from body-related pictures and the possible moderating effect of body mass index (BMI) on this relation. Two hundred and four undergraduate women engaged in an experiment using a pictorial spatial cueing paradigm including fat/thin bodies and neutral household photos. Partial correlations and simple slopes regression analyses were conducted with attentional disengagement index scores of each category of cues. Findings suggested that independent of BMI, weight dissatisfaction was directly associated with attentional disengagement from both fat and thin pictures. In addition, among women with low and medium BMIs, the more they were dissatisfied with their bodyweight, the more difficulty they had disengaging their attention from fat body pictures. 相似文献
85.
This article introduces a new affordance framework for humans and human design. Based on previous important concepts in product design–affordance, signifier, and product semantics, the authors propose three new concepts to illustrate how people perceive affordance. According to the model, perceptual probability of affordance is the probability that the public can perceive a certain affordance; perceptual threshold of affordance is the threshold at which affordance can be perceived by a person and changed by perceptual information; and situations, in which interactions between affordances and people exist, are crucial influences on human–affordance interactions. An illustration of the model and suggestions for further research are provided. 相似文献
86.
本文从宗教的社会性及其特性来强调宗教社会学是一门独立的社会科学,并再次论述了这门学科的研究方法。宗教社会学近两年来在中国的发展,可谓"异军突起",本文从四个方面评述了这种"异",并提出随着学科的发展,学科界线的走向问题。 相似文献
87.
Managerial Stress in Greater China: The Direct and Moderator Effects of Coping Strategies and Work Locus of Control 总被引:4,自引:0,他引:4
Oi-ling Siu Paul E. Spector Cary L. Cooper Luo Lu Shanfa Yu 《Psychologie appliquee》2002,51(4):608-632
La présente étude examine les effets directs et modérateurs des stratégies de défense (contrôle et support) et de la perception de contrôle au travail (extérieure) sur des relations stresseur-tension entre des gestionnaires de la grande Chine (la République populaire de Chine, Hong Kong, et Taiwan). Les données ont été recueillies, via un questionnaire autoadministré, auprès de 876 gestionnaires soit 249 (164 hommes, 85 femmes) en République populaire de Chine, 280 à Hong Kong (159 hommes, 120 femmes, 1 non classifié), et 347 (191 hommes, 151 femmes, 5 non classifiés) au Taiwan. Des effets directs et modérateurs pour les stratégies de défense et pour la perception de contrôle ont été démontrés pour quelques relations stresseur-tension dans les divers échantillons étudiés.
The present study aims at examining the direct and moderator effects of coping strategies (control and support coping) and work locus of control (externality) on the stressor-strain relationships among managers in Greater China (the People's Republic of China [PRC], Hong Kong, and Taiwan). A self-administered survey method was employed to collect data from 249 (164 male, 85 female) managers in the PRC, 280 (159 male, 120 female, 1 unclassified) managers in Hong Kong, and 347 (191 male, 151 female, 5 unclassified) managers in Taiwan. The direct and moderator effects of control coping, support coping, and work locus of control on some stressor-strain relationships were demonstrated in the studied samples. 相似文献
The present study aims at examining the direct and moderator effects of coping strategies (control and support coping) and work locus of control (externality) on the stressor-strain relationships among managers in Greater China (the People's Republic of China [PRC], Hong Kong, and Taiwan). A self-administered survey method was employed to collect data from 249 (164 male, 85 female) managers in the PRC, 280 (159 male, 120 female, 1 unclassified) managers in Hong Kong, and 347 (191 male, 151 female, 5 unclassified) managers in Taiwan. The direct and moderator effects of control coping, support coping, and work locus of control on some stressor-strain relationships were demonstrated in the studied samples. 相似文献
88.
现象学的先验转向是由意义自在转向先验主体,由完全悬置自我到复归主体,这一方面是由于观念自在论的种种困难所促成,另一方面主体主义哲学惟有通过先验转向才能克服其主观性悖论,先验观念论是主体主义哲学最后和最高的形式,而这种最高形式中也隐藏着先验主体的一些理论困难。 相似文献
89.
在先前论文中提出与心理匹配策略相应的,又一用以调节学生学习新材料的学习心向的超出预期策略基础上,本文将该策略运用于数学教学之中,进行现场的教学实验研究。研究结果表明:在数学教学中可以运用超出预期策略对教材内容进行情感性处理,且对调节学生学习心向,提高认知学习的质量是有效的。 相似文献
90.