Reflections on modern China and the progressive power of educational studies

The turn towards using domestic experience in contemporary Chinese educational studies has led to the development of theoretical frames rooted in the reality of Chinese society. This article identifies four ways of understanding and reforming Chinese society that have been developed by 20th century Chinese educators. By reflecting on these four approaches, and on the modern value oriented reactions to social transformation expressed by contemporary Western educational scholars, this article argues that Chinese educational scholars face two essential tasks when developing theories based on domestic experience so as to make positive contributions to China’s unfinished project of modernity. The first is to study the phenomena of imbalance, alienation, and backwardness caused by all kinds of economic and cultural movements and forces in the huge space of Chinese society, and the second is to develop progressive educational ideas that are robust enough to counter these phenomena.     

A nonlinear dynamic macro-element for demand assessment of bridge substructures subjected to ship collision

For the dynamic demand assessment of bridge structures under ship impact loading, it may be prudent to adopt analytical models which permit rapid analysis with reasonable accuracy. Herein, a nonlinear dynamic macro-element is proposed and implemented to quantify the demand of bridge substructures subjected to ship collisions. In the proposed nonlinear macro-element, a combination of an elastic-plastic spring and a dashpot in parallel is employed to describe the mechanical behavior of ship-bows with strain rate effects. Based on the analytical model using the proposed macro-element, a typical substructure under 5000 deadweight tonnage (DWT) ship collision is discussed. Our analyses indicate that the responses of the structure using the nonlinear macro-element agree with the results from the high resolution model, but the efficiency and feasibility of the proposed method increase significantly in practical applications. Furthermore, comparisons between some current design codes (AASHTO, JTGD60-2004, and TB10002.1-2005) and the developed dynamic analysis method suggest that these design codes may be improved, at least to consider the effect of dynamic amplification on structural demand.     

Cloning and efficient expression of <Emphasis Type="Italic">Bacillus sp.</Emphasis> BH072 <Emphasis Type="Italic">tasA</Emphasis> gene in <Emphasis Type="Italic">Escherichia coli</Emphasis>

The Bacillus strain BH072 isolated from a honey sample showed strong antifungal activity against phytopathogen. Gene cloning test demonstrated that the strain had a tasA gene encoding an antifungal TasA protein. Although the wild strain simultaneously produced various antifungal substances, only the physicochemical property and antifungal activity of TasA protein were unclear due to the difficulty in extraction. In this study, tasA gene encoding the protein from Bacillus sp. BH072 was amplified by using the polymerase chain reaction (PCR) method and cloned into pET 28a (+) vector, and then expressed in host cells Escherichia coli BL21 (DE3). The expressed proteins were collected by centrifugation and ultrasonic treatment, and then purified by using nickel-nitrilotriacetic acid (Ni-NTA) metal affinity column and dialysis methods. The result of sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) test showed that an expected protein band appeared with a size of 31 kDa. The expressed products possessed antifungal activity against the phytopathogenic indicator strain Botrytis cinerea. A genetically engineered strain tasA of E. coli was established in this study which can efficiently express Tas A protein.     

中小学教师信息技术应用能力现状及培训建议

信息技术能力已成为信息化社会教师必备的专业能力,2014年6月,教育部颁布了《中小学教师信息技术应用能力标准(试行)》,开启了中小学教师新一轮信息技术应用能力提升培训。为了了解现阶段中小学教师信息技术应用能力水平,为能力提升培训的实施提供依据。该文以湖北、河南、安徽和广西四个省市中35个市区的414名中小学教师为调研对象,从标准的角度对其信息化应用能力现状开展较为全面的调研。结果表明中小学教师应用信息技术优化课堂教学能力的达标情况优于转变学习方式的能力。根据测评结果对中小学教师信息应用能力培训提出建议,也为我国推进信息化环境下教师队伍的建设提供借鉴。     

基于学习者角度的微课建设策略研究

目前国内微课数量可以说是海量级,大量的微课往往只是单纯为了评比而制作。单单用于教学水平展示的微课不能最大限度地发挥其功能,而以学习者为中心制作的微课有助于提高有效利用率,将引导微课真正走上健康发展的道路。为了解学习者对微课的需求,本文以国内知名微课网站建设内容和实施微课教学的40名学生的访谈内容为依据,总结当前微课建设存在的问题,针对这些问题提出了以学习者为出发点,从微课表现形式、时间控制、内容选取、配套资源等方面提出了改善微课建设现状的策略,为进一步推动微课在实际教学过程中的深入应用提供借鉴。     

弗吉尼亚大学荣誉制度心理听证会的规范及实施程序

弗吉尼亚大学荣誉制度是一种规范学生学术行为的制度,引导学生做到学术诚信.针对精神障碍和无行为能力的问题学生,荣誉制度启用了心理听证会规范这一特殊人群的学术行为,设置心理听证程序负责精神障碍和无行为能力案件的处理.心理听证会实施程序分为申请和听证,其中听证程序又包括听证前的准备、听证的开展及听证后的上诉.心理听证会进一步保证了荣誉制度实施的公正性.     

Saber仿真技术在电力电子教学中的应用

将Saber仿真技术应用于电力电子技术课程的教学中,通过同步整流反激变换器实例,介绍了利用Saber软件建模、进行参数设计及仿真分析的过程。仿真实验得到的触发脉冲、输出电流和输出电压结果与同步整流管驱动电路的原理分析一致。应用Saber软件可使电力电子技术的原理与概念形象化,将原理性内容更直观的展示出来,学生对其理解程度也会更加深入。     

茶叶中稀土元素检测方法研究进展

简要概述了茶叶的前处理方法和稀土元素质量分数测定的主要方法,包括灰化法、湿法消解法和微波消解等前处理法,以及分光光度法、电感耦合等离子体发射光谱法、电感耦合等离子体质谱法和中子活化法等检测方法。综合比较,在检测不同类型茶叶中稀土质量分数时,微波消解－ICP-MS 技术具有操作简单、准确度高的优点。     

从救亡梦到强国梦——漫谈中国教育梦的历史演进

教育既是中国梦的内容,也是实现中国梦的手段.近代以来,在追寻中国梦的过程中,有过革弊、兴学和留学的教育救亡梦,也有过一心一意的教育建国梦,这些教育梦留给人们很多遐想.当前,在实现中国梦的过程中,应该拾回中国教育的自信心,找回中国教育的生命力,增强文化软实力,为中国梦的实现筑基.     

校院“双主体”人才培养模式改革及实践探索——重庆三峡医药高等专科学校医教协同人才培养模式改革

学校与医院共同围绕专业人才培养目标实施各具特色、相互联系和衔接的教学手段与育人方式是院校“双主体”人才培养模式的内涵.在实践中,重庆三峡医药高等专科学校对接行业,为医教协同“双主体”人才共育搭建平台;对接需求优化专业结构,促进医教协同的共生发展;对接合作医院,推进医教协同院校“双主体”人才培养模式改革;对接职业岗位及岗位群,深化课程建设使之更加贴近职业岗位需求.同时,建立医教协同的工作机制,保障共育人才的畅通运行.