Tunable wave-vector filtering in a two-dimensional electron gas modulated by magnetic barriers and δ-doping

We report a theoretical investigation on the control of wave-vector filtering (WVF) in a two-dimensional electron gas modulated by realistic magnetic barriers and δ-doping, which can be experimentally realised by depositing a ferromagnetic stripe on the surface of a GaAs/Al_xGa_1?xAs heterostructure and using atomic layer doping. Theoretical analysis demonstrates that a sizeable WVF effect still exists even if δ-doping is introduced into the device. Numerical calculation reveals that the WVF efficiency is related closely to the δ-doping. Thus, the WVF effect in a magnetic nanostructure can be conveniently manipulated by properly adjusting the weight and/or the position of the δ-doping, giving rise to a tunable momentum filter for nanoelectronics applications.     

The Effectiveness of Solution-Focused Group Therapy in Ethnic Chinese School Settings: A Meta-Analysis

In order to assess the effectiveness and the moderators of the effects of solution-focused group therapy (SFGT) in ethnic Chinese school settings, we used a meta-analytic method to synthesize 24 studies from Taiwan and China. The results showed that the overall effect sizes of SFGT’s immediate and follow-up effects were 1.03 and 1.09, respectively, and were positive and large in ethnic Chinese school settings. The overall SFGT immediate effect size was large for all school levels, except for junior high schools (d = .61). The overall SFGT immediate effect size for internalizing behavior problems was 1.06, and for family and relationship problems it was .94. This study offers significant evidence pointing to SFGT’s high degree of effectiveness in ethnic Chinese school settings. Implications for the use of SFGT in school settings and Chinese culture are discussed.     

Virtue ethics and modern society—A response to the thesis of the modern predicament of virtue ethics

The revival of modern Western virtue ethics presents the question of whether or not virtue ethics is appropriate for modern society. Ethicists believe that virtue ethics came from traditional society, to which it conforms so well. The appearance of the market economy and a utilitarian spirit, together with society’s diversification, is a sign that modern society has arrived. This also indicates a transformation in the moral spirit. But modern society has not made virtues less important, and even as modern life has become more diversified, rule-following ethics have taken on even greater importance. Modern ethical life is still the ethical life of individuals whose self-identity contains the identity of moral spirit, and virtues have a very important influence on the self-identical moral characters. Furthermore, modern society, which is centered around utilitarianism, makes it apparent that rules themselves are far from being adequate and virtues are important. Virtues are a moral resource for modern people to resist modern evils.     

关于道德唤起与道德行为关系的实验研究

本文通过一个关于测验作弊的实验研究,揭示了道德唤起与道德行为之间存在的一定关系,即不同的道德唤起水平会对道德行为产生一定的影响。通过实验后的个别访谈,我们分析了道德认知、道德情感与道德唤起之间的关系。最后,我们提出了本实验研究的不足之处和可能存在的后续研究。     

德法之治:齐国政权盛衰的历史经验教训

从德法之治的角度,研究政权的兴衰,挖掘齐国统治800年的历史,其经验教训为,任人唯贤与民心向背是政权存否的关键。以人为本是富国强兵的根本。德法不举是齐国政权败亡的主要原因。     

论社会科学的重要性--兼论淄博齐文化大市建设与社会科学的关系

社会科学的重要性越来越被人们发现和重视,在我国更是如此。社会科学对于一个国家、一个地区的经济和文化等方面的发展,特别是经济发展到一定程度以后,其巨大作用将日益凸显出来。我国是具有悠久历史文化传统的国家,这些悠久历史文化传统源于我国各个地方地域文化,是这些地域文化的有机统一。从社会科学的各个角度挖掘和研究这些历史文化遗产,无疑能够增加这些地区的文化底蕴,从而增强这些地区的社会和经济发展的后劲。社会科学意义重大,它是我们党领导人民取得胜利的重要法宝;它是我们党领导人民进行社会主义建设的重要法宝;它还是我们党领导人民进行改革开放的重要法宝。     

MMPI-215中F量表的特性及其影响因素

使用MMPI—215在全国18个省市对7073名应征青年进行测试,探讨F量表分数的相关和影响因素。结果：1．F分在正常人群与异常人群中有各自不同分布特点;其应答率存在有显著差异;2．F分与其它分量表呈显著性相关;3F分受年龄、文化程度、生长地等多因素影响,低学历,生长地靠北方和农村、年龄偏小的应征青年F分数较高。     

学术不端：从自然科学想到社会科学

今年,世界自然科学界出了一件大案子,就是韩国汉城大学黄禹锡发表在美国权威的《科学》杂志上的一篇论文被揭露出来实验材料和数据有假。此案已经尘埃落地。论文已由杂志宣布撤销,黄禹锡已被汉城大学宣布撤职,黄自己也已公开向公众道歉。一度被认为是一项重大的科学发观、科学创造,结果被查出来是一场骗局!这骗局,属于邹承鲁院士提出第一类学术不端行为:“伪造或篡改原始实验数据”。这是最严重的、危害最大的学术不     

不熟练汉英双语儿童翻译加工的特点

本研究使用单词翻译、图片命名和单词命名任务探查了不熟练的小学三、五和初一年级汉英双语儿童前向翻译和后向翻译的内在过程,结果发现,(1)各组被试命名图片和单词的语言效应显著,用第二语言命名图片和单词的反应时显著长于用第一语言命名图片和单词的反应时;(2)各组被试在前向翻译的反应时显著长于后向翻译,随着第二语言熟练程度的提高,反应时的差异逐渐减小。对结果的分析表明,不熟练的汉英双语儿童在两个翻译方向的内在过程相同,都是概念中介的,但两个翻译方向的加工速度差异显著。