Nanocrystallization induced by quasi-static fracture of metallic glasses at room temperature

Nanoparticles on the fracture surfaces of Co- and Fe-based metallic glasses during quasi-static compression at room temperature have been observed using a high-resolution scanning electron microscope. In terms of the differential scanning calorimeter, those nanoparticles were identified to be a result of nanocrystallization induced by the rapid fracture. Finally, the nanocrystallization behavior was evaluated by taking into account the super-high crack propagation rate and high elastic energy, which contributed to the local temperature rise up to the onset of crystallization, T _x.     

Comparison of quasicrystalline (T2) and crystalline (R) structures in AlCuLi using high-resolution X-ray diffraction

Abstract

A high-resolution X-ray scattering experiment has been performed on quasicrystalline (T2) and crystalline (R) phases of AlCuLi alloys. Peak widths determined from the diffraction profile of the R phase are found to scale with momentum transfer G, similar to the strain-broadening effect seen in conventional crystals with small unit cells. A narrowing of peak widths on annealing is also observed. On the other hand, diffraction peak widths in I-phase samples obtained by rapid solidification are found to scale with phason momentum G ₁, similar to that observed in large faceted crystals. Thermal annealing of the I phase is found to have no effect on peak widths. Our findings are discussed in the light of models for crystals and quasicrystals.     

伍连德与早期中俄陆路口岸出入境动物检疫

从档案资料中发现,伍连德在东三省防疫总处工作期间,对我国出入境动物检疫的发展起到了积极的促进作用.在他的大力推动下,黑河道立兽疫检验所和满洲里、海拉尔獭皮消毒检验所得以建立,使得黑龙江省成立了第一个由中国政府掌管的出入境动物检验机构,并且将旱獭的捕猎和贸易引入了科学规范的监管道路.通过对一手资料的挖掘和梳理,论述了伍连德先生在中国出入境动物检疫机构和制度的建立以及人才引进方面所做出的努力,进一步拓展和丰富了对伍连德先生的研究成果.     

Acceptability of Behavioral Family Therapy among Caregivers in China

In the U.S., helping the noncompliant child and parent child interaction therapy represent behavioral family therapy programs that are empirically supported for treating the conduct problems of 2- to 7-year old children. This study examined how caregivers in China would view behavioral family therapy. Caregivers in Hangzhou, China reported the perceived age of deviance for behavioral family therapy targets (e.g., noncompliance) and rated the acceptability of behavioral treatment components (e.g., timeout). Chinese caregivers agreed with European-American culture on considering noncompliance, aggression, tantrums, and negative talk deviant during the pre-school period. Overall, Chinese caregivers considered all the following nine behavioral family therapy components acceptable: contingent praise, responsive play, ignoring deviant attention seeking, authoritative instruction-giving, warnings, chair timeouts, ignoring tantrums during timeout, room backups for chair timeouts, and immediate timeouts for aggression. However, specific parental reservations were found regarding backup procedures for chair timeouts, particularly room backups. Possible treatment accommodations of behavioral family therapy for Chinese families are discussed.     

Preference stability belief as a determinant of response to personalized recommendations

Preference stability refers to the objectively measured choice consistency among options with different attribute values in the same product category. We suggest that a consumer's subjectively held belief of preference stability may be an important determinant of response to personalized recommendations. Experimental results confirm that preference stability belief moderates the effect of customization on the evaluation of recommendation accuracy and receptiveness to the learning relationship. Customization will produce stronger effects on accuracy evaluation and receptiveness for subjects with high preference stability belief than for subjects with low preference stability belief. Customers who believe their preferences are stable appreciate customized recommendations more, notice more acutely whether recommendations are customized or not, and are more receptive to the learning relationship when recommendations are customized than when not. Customers who believe their own preferences are less stable do not appreciate customized recommendations as much, are less sensitive to whether recommendations are customized or not, and are not more receptive to the learning relationship even when recommendations are customized. Theoretical and managerial implications of our findings are discussed. Copyright © 2011 John Wiley & Sons, Ltd.     

Losing control in front of a fearful face: the effect of emotional information on cognitive control

How is our cognitive control system modulated by emotional information, especially fearful stimuli? An intuitive hypothesis is that fearful stimuli would enhance cognitive control so that people could switch from the ongoing task to emergent events more quickly to secure themselves. To test this hypothesis, we investigated the influence of emotional information on the shift function of cognitive control by using the task-cueing procedure, in which face images were presented as cues. With the gender of faces indicating which task to do, we manipulated the emotional valence of faces (neutral vs. fearful), finding that the switch costs were larger in the trials containing fearful cues than in the trials containing neutral cues (Experiment 1). This effect was not caused by enlarging task-set interference (Experiment 2), nor by slowing down cue encoding (Experiment 3). Contrary to the intuitive hypothesis, our results suggested that the endogenous task-set reconfiguration process was impaired when fearful faces were presented. We speculated that the benefit of decreasing cognitive flexibility in face of fearful stimuli is to speed up response in a dangerous environment, and this accelerating response is achieved by suppressing the goal-directed system to permit the fast, automatic stimulus-driven system to govern behaviours.     

未来取向研究回顾与展望

未来取向作为个体对于未来的思考和规划过程,近年来受到研究界日益广泛的关注并展开大量研究。笔者澄清了未来取向的含义,回顾了未来取向研究的沿革历程,梳理了近二十年在各研究领域取得的成果,并在此基础上提出当前该领域的未来发展趋向,即突破心理机制的瓶颈,拓展研究范围;扩展研究对象,进行纵向研究;强调社会文化的影响,进行跨文化的研究。     

孔子评管仲新解

子路与子贡根据管仲"桓公杀公子纠,不能死,又相之",断定他为"非仁"。孔子根据"不以兵车,九合诸侯"和"霸诸侯,一匡天下,民到于今受其赐"以及"微管仲,吾其披发左衽矣",断定他"如其仁,如其仁",为"大人"。孔子善于透过现象抓住和平、发展、人民受惠的本质;正确处理"经"与"权"的关系;提倡"宽猛相济"的政治,这些仍具有一定的现实意义。     

论Empathy的翻译及其内涵

"共情"(Empathy)是十分重要的心理现象,影响着人们的社会认知和实际的人际交往;共情更是临床心理学中的专业术语,直接关系到医患关系的建立以及治疗和治愈的效果。针对目前国内心理学界对于Empathy的不同理解乃至使用上的混乱,文章从该术语的起源和本义,以及其专业内涵和翻译的意义等方面,提出了独到的见解和主张。     

论直接深入无意识的积极想象与内视方法——兼论作为单纯觉察的意识

运用现象学等研究方法,对积极想象、内视等方法及其共同要素单纯觉察的意识awareness做了探讨;提出把握单纯觉察的意识,是掌握积极想象与内视等方法的关键;而心身整体的调整,才是让无意识自由涌现的根本与保障。