发挥网络互动在创新活动中的积极作用

创新灵感的产生需要自由、活跃、开放的思维空间,很多灵感都是在不同思想的碰撞和启发下产生的。善于运用网络互动的优势,是打破和改变研究者自身有碍创新不良思维束缚的有效捷径,其优势可以弥补传统头脑风暴法中存在的一些不利因素。     

Comparison of models for average bioequivalence in replicated crossover designs

Average bioequivalence (ABE) has been the regulatory standard for bioequivalence (BE) since the 1990s. BE studies are commonly two-period crossovers, but may also use replicated designs. The replicated crossover will provide greater power for the ABE assessment. FDA has recommended that ABE analysis of replicated crossovers use a model which includes terms for separate within- and between-subject components for each formulation and which allows for a subject x formulation interaction component. Our simulation study compares the performance of four alternative mixed effects models: the FDA model, a three variance component model proposed by Ekbohm and Melander (EM), a random intercepts and slopes model (RIS) proposed by Patterson and Jones, and a simple model that contains only two variance components. The simple model fails (when not 'true') to provide adequate coverage and it accepts the hypothesis of equivalence too often. FDA and EM models are frequently indistinguishable and often provide the best performance with respect to coverage and probability of concluding BE. The RIS model concludes equivalence too often when both the within- and between-subject variance components differ between formulations. The FDA analysis model is recommended because it provides the most detail regarding components of variability and has a slight advantage over the EM model in confidence interval length.     

Language attitudes in interaction1

This paper discusses the observation of language attitudes in interaction and argues that these approaches provide invaluable insights for the study of language attitudes. In the first half of the paper, the three different kinds of discourse‐based methods of analysis that scholars have used to analyse language attitudes (content‐based approaches, turn‐internal semantic and pragmatic approaches, and interactional approaches) are discussed. In the second half, then, the third of these approaches is used to illustrate such an analysis with four stretches of conversation in different contexts. In the end, the argument is put forward that discourse‐based approaches in general and interactional approaches in particular should be viewed as at least as fundamental to language attitude research as more commonly used quantitative methods of analysis, since the former can provide the researcher with insights that the latter do not.     

外语课堂教学中教师语言的人际功能探讨

运用系统功能语言学理论,从师生互动的层面对外语教学中教师语言的认知功能、评价功能和互动功能进行了探讨,说明教师可以通过更多地使用并引导学生使用自然语言来提高学生的语言认知能力,通过对学生表现的有目的的评价来调动学生的积极情感、促进学生的语言输出并进而提高语言应用能力,通过有效的提问方式加强与学生间的互动等。     

超临界流体萃取技术应用研究

近年来,随着科学技术的发展,超临界流体萃取技术在国内外分离领域取得了巨大进步。本文就超临界流体萃取技的发展概况,原理,应用,以及未来发展做了简单的介绍。     

论大连港与腹地发展的互动机制——从近代辽河航运经济的变迁谈起

以近代营口港为线索,对近代辽河航运经济兴衰进行简单梳理,并在此基础上分析大连港和腹地发展的互动机制,指出港口与腹地发展是相互依存、互惠互利的,必须坚持科学发展观,走节约型与循环型经济的发展道路。     

高校教学中的师生互动关系探讨

教学过程中积极的师生互动关系具有十分重要的意义,已成为教育教学研究的核心问题。就建立积极的师生互动关系的重要性及其途径作了一定的说明与阐述。     

穆斯堡尔效应与富铁永磁材料研究

本文阐述了穆斯堡尔效应的特点,深入讨论了超精细相互作用,阐明了它与永磁材料研究的密切联系,最后介绍和讨论了穆斯堡尔谱在最近国际上发展较快、很受重视的新型稀土富铁永磁材料研究中的应用.这对正确地根据穆斯堡尔实验数据分析实验结果是有益的.     

接受美学与巴赫金对话理论的关联及互动

接受美学和巴赫金的对话理论都受到了希腊哲学中对话思想的影响,在许多方面有共通之处,具有同源性和家族相似特征。由此,两者还产生了互动,接受美学与对话理论共同推动了女性主义理论的发展。互文性的观点经过巴尔特的阐释,影响了尧斯。尧斯看到了巴赫金的“狂欢化”对审美快感的肯定作用,并以此超越了阿多诺的否定性美学。通过两者的互动,美学理论获得了转型的启示。     

固体超强酸催化合成乙酸丁酯的研究

选用固体超强酸：代替浓硫酸作催化剂，对乙酸了酯的合成进行了研究．考察了影响酯化率的多种因素．结果表明，该催化剂催化合成乙酸丁酯，具有较高的活性，在最佳条件下，酯化率大于９０％。此外，该法与硫酸作催化剂相比，具有流程短、设备腐蚀程度小、无三废等优点。