Formation and analysis of amorphous and nanocrystalline phases in Al–Cu–Mg alloy under friction stir processing

Homogeneous amorphous and nanocrystalline phases formed in the nugget zone of a friction stir-processed Al–Cu–Mg alloy have been studied. X-ray diffraction analysis indicated a diffuse scattering peak with characteristics of an amorphous phase existed in the range 15°–29°. Further, TEM analysis proved the existence of an amorphous structure. Friction stir processing provides special physical conditions, such as high temperature, high hydrostatic pressure and large shear stress, which could induce the amorphization of the alloy.     

Perceived organizational career management and career adaptability as predictors of success and turnover intention among Chinese employees

Based on the theories of career construction and of social exchange, the current research examined the joint and interactive effects of perceived organizational career management and career adaptability on indicators of career success (i.e., salary and career satisfaction) and work attitudes (i.e., turnover intention) among 654 Chinese employees. The results showed that career adaptability played a unique role in predicting salary after controlling for the effects of demographic variables and perceived organizational career management. It was also found that both perceived organizational career management and career adaptability correlated negatively with turnover intention, with these relationships mediated by career satisfaction. The results further showed that career adaptability moderated the relationship between perceived organizational career management and career satisfaction such that this positive relationship was stronger among employees with a higher level of career adaptability. In support of the hypothesized moderated mediation model, for employees with a higher level of career adaptability, the indirect effect of perceived career management on turnover intention through career satisfaction was stronger. These findings carry implications for research on career success and turnover intention.     

共同因素心理治疗整合模式的回顾与评析

共同因素心理治疗整合模式是现代心理治疗整合运动中最早被提出的一种心理治疗整合模式。通过对共同因素整合模式的创建背景、发展历程及基本观点进行了梳理简述,认为其在促进心理治疗各流派融合的同时也人为地造成了“共同因素VS特异因素”新的对立,探讨了唯有建基于人的整合本性的心理治疗整合视野才能促进心理治疗整合运动未来的健康发展。     

面孔-人格知觉中眼部线索及其效应

人们常常会基于他人面孔特征对其人格做出相应推论。在影响面孔-人格知觉的五官特征中, 眼部特征最具复杂性。总体上, 眼部线索可分为可变和不可变两大类。可变线索包括注视方向、眼睑开放程度与眼部区域的表情等; 不可变线索包括眼睛大小、巩膜着色程度、虹膜颜色以及巩膜暴露指数等。从以上线索效应的潜在作用机制来看, 可以将眼部线索分为三大类, 即受病理因素影响的眼部线索、与特定群体相关的眼部线索和受主观意识或生理因素调控的眼部线索。此外, 也进一步指出了未来研究还需加以考虑的其他眼部特征效应, 以及待拓展深入的研究视角。     

经颅直流电刺激对健康人群反应抑制的影响

反应抑制是指抑制不恰当的或不符合当前需要的行为的能力, 研究表明反应抑制主要与额下回、背外侧前额叶和前辅助运动区的功能有关。经颅直流电刺激(tDCS)是一种非侵入式脑刺激技术, 近年来对健康人群使用tDCS刺激相应脑区从而影响反应抑制功能的研究日益增多, 但主要研究结果不一致。阐明tDCS影响反应抑制具体的神经机制、减少tDCS研究的异质性、探索更有效的tDCS刺激方式和确定tDCS效果的年龄依赖性差异已成为目前亟待解决的问题。     

今日逻辑教学国际研讨会综述

由南开大学哲学院主办,清华大学哲学系、南开大学教务处和南开大学研究生院协办的＂今日逻辑教学国际研讨会＂（Intemational Workshop on TeachingLogic Today）于2011年10月7日在南开大学隆重召开,这是在中国大陆召开的首次探讨逻辑教学和网络辅助教学的国际研讨会。来自荷兰、美国、英国、西班牙、新西兰、印度等国家的专家学者和清华大学、北京大学、浙江大学、中山大学、北京师范大学、南开大学等国内知名高校的学者共30余人出席了本次研讨会,南开大学哲学院逻辑学专业的博士生、硕士生和部分本科生参加了会议。     

基于论证型式应用的论证挖掘

本文旨在为构建一种以论证型式为基础的方法,用以帮助非形式逻辑的学生分析自然语言对话的文本,并识别出其中所出现的常见论证类型。他们在这一过程中时常会错误地辨识论证类型,而本文将表明所发展的这种方法对于学习非形式逻辑的学生们是非常有帮助的。另外,对于那些可用于构建一种有用的论证识别方法的理论资源,本文对其最新发展动态进行了考察,并且也概览了当前人工智能领域中所发展的自动论证挖掘工具。     

Sym（f（n））上最终无不动点且最终不同的集合

本文研究的是极大的最终无不动点且最终不同的集合（m.e.fd.集合）的基数,并讨论了与此相关的一个连续统常量,证明了以下结果：1.c_e〉W2.存在一个大小为2~w的m.e.f.d.集合。3.ZFC＋MA c_e=2~w4.令M｜=ZFC＋ CH,κ是M中满足条件w1≤κ〈2~w=λ的基数。则存在一个c.c.c.的力迫概念P,使得在模型M~p中有：（i）2~w=λ（ii）存在一个m.e.f.d的集合,其基数为κ。5.令M｜=（ZFC＋CH）。则在M中存在一个基数为W1的m.e.f.d.的集合A,使得对任意一个M上的Cohen力迫概念P,A在M~p中还是m.e.f.d.的集合。