Nanocracks at grain boundaries in nanocrystalline materials

A theoretical model is proposed to describe the generation and evolution of nanoscale cracks (nanocracks) in strained nanocrystalline materials. In the framework of the model, the nanocracks are nucleated and grow along grain boundaries, changing the direction of their growth at triple junctions.     

FOCUS: European Views on Complexity,Recursion, and Planetary Ethics Preface to the FOCUS Section

Global geographical patterns of repressive, painful, traumatic, and violent patrist behaviors and social institutions, which thwart materal‐infant and male‐female bonds, were correlated and developed through a systematic analysis of anthropological data on 1170 subsistence‐level cultures. When the behavior data were mapped, the hyperarid desert belt encompassing North Africa, the Near East, and Central Asia, which I call Saharasia, was found to possess the greatest areal extent of the most extreme patrist behaviors and social institutions on Earth. Regions farthest removed from Saharasia, in Oceania and the New World, were found to possess the most extreme matrist behaviors, which support and protect maternal‐infant and male‐female bonds. A systematic review of archaeological and historical materials suggests that patrism first developed in Saharasia after c.4000 BCE, the time of a major ecological transition from relatively wet grassland‐forest conditions to arid desert conditions. Settlement and migration patterns of patrist peoples were traced, from their earliest homelands in Saharasia, to explain the later appearance of patrism in regions outside of Saharasia. Prior to the onset of dry conditions in Saharasia, evidence for matrism is widespread, but evidence for patrism is generally nonexistent. It is argued that matrism constitutes the earliest, original, and innate form of human behavior and social organization, while patrism, perpetuated by trauma‐inducing social institutions, first developed among Homo Sapiens in Saharasia, under the pressures of severe desertification, famine, and forced migrations.     

Vocal learning of a communicative signal in captive chimpanzees, Pan troglodytes

We hypothesized that chimpanzees could learn to produce attention-getting (AG) sounds via positive reinforcement. We conducted a vocal assessment in 76 captive chimpanzees for their use of AG sounds to acquire the attention of an otherwise inattentive human. Fourteen individuals that did not produce AG sounds during the vocal assessment were evaluated for their ability to acquire the use of an AG sound through operant conditioning and to employ these sounds in an attention-getting context. Nine of the 14 chimpanzees were successfully shaped using positive reinforcement to produce an AG sound. In a post-training vocal assessment, eight of the nine individuals that were successfully trained to produce AG sounds generalized the use of these newly acquired signals to communicatively relevant situations. Chimpanzees possess the ability to acquire the use of a communicative signal via operant conditioning and can generalize the use of this newly acquired signal to appropriate communicative contexts.     

体验购买与实物购买：概念、测量及其与快乐的关系

体验购买是指为了获得生活经历或经验而进行的购买, 与其相对应的是实物购买, 指的是为了拥有物质类商品而进行的消费行为。这两种购买类型对于个体的快乐有着不同的影响, 体验购买比实物购买更让人感到快乐和愉悦, 其中的原因存在于以下5个方面：体验随时间的推移而改善, 变得越来越美好; 体验与自我的联系更为紧密; 体验购买不易引起社会比较; 体验能够满足基本心理需要, 尤其是关系需要; 体验易于分享。未来研究可以从以下3个方面着手：(1) 探索购买类型对快乐感的长期影响以及对不同取向幸福感的作用, 体验优先的适用范围; (2) 改进现有回忆和想象的研究范式, 提高生态效度; (3) 结合我国实际情况开展购买类型与快乐感的本土化研究。     

尝试提取复杂信息失败的学习：吃一堑长一智？

摘 要：在学习中,提取失败能否产生对知识的有效学习是一个很有意义的研究课题。以事实和概念类知识为实验材料,三个实验采用经典范式探讨了复杂意义条件下的提取失败后的学习效果。结果显示仅在尝试提取事实类题目失败后,促进了知识的保持和迁移;在迁移成绩上延时反馈优于即时反馈的效果。表明尝试提取复杂材料的信息失败后,知识的类型和反馈的时机决定了学习效果。     

制作眼部视听教材相关法律问题的探讨

讨论了在眼部视听教材制作过程中相关的法律问题,正确运用法律、法规保护医患双方合法权益。患者就医时具有肖像权。应用法学理论,结合实践,同意签字后制作眼部视听教材,取得良好效果。     

AN INQUIRY INTO THE ORIGINS OF LIFE ON EARTH— A SYNTHESIS OF PROCESS THOUGHT IN SCIENCE AND THEOLOGY

An initiating event in the development of life on earth is thought to have been the generation of self‐replicating catalytic molecules (SRCMs). Despite decades of work to reveal how SRCMs could have formed, a chemically detailed hypothesis remains elusive. I maintain that this is due, in part, to a failure of metaphysics and question this research program's ontologic foundation of materialism. In this essay I suggest another worldview that may provide more adequate ontologic underpinnings: Whitehead's process philosophy of dynamic, relational becoming. Here we come to see molecules not as unchanging objects but rather as processes that possess the capacity for subjective experience. Molecular transformation is driven by experience, both internal and external. Process thought accounts for the world's creative impulse by positing a God who lures the becoming of all entities toward greater complexity and value. Chemical evolution is now seen as divine motivation of molecular becoming and, as such, possesses the potential for introducing true novelty into the world. The “causal joint” between God and world is hypothesized to be an energy transduction at the molecular level that allows divine action without violation of chemical principles or physical laws.     

郭店竹简《性自命出》之音乐美学论

《性自命出》为郭店楚简中一篇颇为重要的先秦儒家佚籍,篇中有论及音乐之源起、音乐之功能、音乐之宗旨等方面的内容,语焉不详,却与《乐记》等经典著作表现出既有相同,也有相异之处的音乐美学观念,对审视儒家音乐美学思想,具有一定的意义。     

抽象材料选择任务的表象表征视角

为了探讨在选择任务中表象表征存在的可能性以及抽象材料选择任务困难的原因,该研究设定了材料的内容、规则以及证明规则的要求均完全相同,只是在呈现方式上形象性不同的两种抽象选择任务;然后把两种不同的选择任务分别对数量大致相当的大学生进行了测试。结果发现,不采用类似卡片这种形象性很强的材料呈现方式显著的提高了人们在抽象选择任务中的正确率。实验结果支持了选择任务中表象表征的存在及其为选择任务困难原因之一的观点。