独立学院图书馆声像阅览室建设初探

结合华中科技大学武昌分校图书馆声像阅览室建设实践,论述了声像阅览室的建设,如对环境的选择和布置、对计算机设备的配置、声像资料的建设、声像阅览室的特色服务等等,并提出声像阅览室建设应注意的有关问题。     

美国"化学与健康"教育的内容与模式

社会的进步提高了人们的健康意识，也提出了更高、更新的健康教育的渴求，美国在上世纪末运用“科学-技术-社会”的教育新思想开发并编写了“化学与健康”的课程及教材。他们所设置的教学内容体现了现代健康的理念，采取的教学模式具有启发性，并体现了研究、探索、行为决策的特征。     

网络环境下的校本培训

本文在分析校本培训内涵与特点的基础上，对网络环境下的校本培训进行了研究，探讨了其网络应用的技术类型、实践模式，提出了中小学校利用网络进行校本培训的实施务件和推进策略。     

《周易》的文学色彩

本文从文体和修辞两方面探索<易传>中的文学因素.在文体方面,<易传>有较强的故事性,有浓厚的诗歌色彩;在修辞方面,<易传>中多用铺陈、比喻、起兴、象征等手法.因此,周易具有浓厚的文学色彩.     

软开关PWM boost全桥变换器

本文系统提出boost全桥变换器的一族共 9种PWM控制方式 .根据一对斜对角开关管开通情况的不同 ,将这 9种PWM控制方式分成 2类切换方式 .为了实现软开关 ,引入超前管和滞后管的概念 .在此基础上 ,将软开关PWMboost全桥变换器分成ZCS和ZCZVS两类 .计算机仿真结果证实了所做的分析 .     

建构主义教育理论的传播学解读

西方的建构主义或者说结构主义源自关于儿童认知发展的理论。实际上是与杜威的“以儿童为中心”的教育思想一脉相承的。建构主义教育理论的核心可以概括为一句话:以学生为中心,强调学生对知识的主动探索、主动发现和对所学知识意义的主动建构。在建构主义者看来,所谓传统教学强     

聚焦课程改革聆听不同声音--广西第一届"教改论坛"对话录

2005年9月6日,广西壮族自治区第一届“教改论坛”在广西师范大学隆重举行。自治区教育厅领导、课程改革专家以及一线的校长、教师们聚集于论坛，通过对话、讨论的方式对新课程改革进行反思。在这里，思想的火花在进发，不同的角度、不同的体悟、不同的观点、不同的声音交汇在一起，共同解读教育问题,探索基础教育课程改革的良策。以下是他们充满理性与激情的对话。     

Everything is at stake; yet nothing is at stake: exploring meaning-making in game-centred approaches

While not wishing to cover old ground in articulating the promise or continued promise of phenomenology within the physical education and sports domains, this paper aims to explore the ‘human’ nature of the game-centred approach (GCA) from an existential-phenomenological perspective. In a recent review of literature on the current state of research on GCAs, Harvey and Jarrett made the call for phenomenological-oriented empirical studies. Urging the academic fraternity to embrace such ‘participatory epistemologies’ is an extremely positive and important step by the authors. This is because, although they do not explicitly make the point, to call for the embrace of phenomenological-oriented research into GCAs, the authors are accepting the fundamental importance of individual experience and meaning in games teaching. If we focus on the individual it then becomes a distinct possibility of structuring increasingly meaningful game-centred practice. In this respect we analyze Martin Heidegger's notion of ‘being-in-the-world’ and illustrate how Arnold's three categories of meaningful movement—primordial, contextual and existential—can help facilitate ideas for pedagogical practice and provide an appropriate interpretive lens for future research into GCAs.     

Application of derivative ratio spectrophotometry for determination of β-carotene and astaxanthin from Phaffia rhodozyma extract

A derivative ratio spectrophotometric method was used for the simultaneous determination of β-carotene and astaxanthin produced from Phaffia rhodozyma. Absorbencies of a series of the standard carotenoids in the range of 441 nm to 490nm demonstrated that their absorptive spectra accorded with Beer's law and that the additivity when the concentrations of β-carotene and astaxanthin and their mixture were within the range of 0 to 5 μg/ml, 0 to 6 μg/ml, and 0 to 6 μg/ml, respectively.When the wavelength interval (△λ) at 2 nm was selected to calculate the first derivative ratio spectra values, the first derivative amplitudes at 461 nm and 466 nm were suitable for quantitatively determining β-carotene and astaxanthin, respectively. Effect of divisor on derivative ratio spectra could be neglected; any concentration used as divisor in range of 1.0 to 4.0 μg/ml is ideal for calculating the derivative ratio spectra values of the two carotenoids. Calibration graphs were established for β-carotene within 0-6.0 μg/ml and for astaxanthin within 0-5.0 μg/ml with their corresponding regressive equations in: y=-0.0082x-0.0002 and y=0.0146x-0.0006, respectively. R-square values in excess of 0.999 indicated the good linearity of the calibration graphs. Sample recovery rates were found satisfactory (＞99%) with relative standard deviations (RSD) of less than 5%. This method was successfully applied to simultaneous determination of β-carotene and astaxanthin in the laboratory-prepared mixtures and the extract from the Phaffia rhodozyma culture.     

用户感知视角下档案网站服务质量测评实证研究

[目的/意义] 从用户感知视角对省级档案网站服务质量评价进行实证研究,为档案网站信息质量、界面设计及服务与交互质量的改进提供理论支持和实证参考。[方法/过程] 借助SPSS19.0对调查问卷的有效样本进行探索性因子分析,构建档案网站服务质量评价体系,运用因子分析法对体系进行权重赋值,最后针对四个具有代表性的省级档案网站做出实证分析。[结果/结论] 对比分析省级档案网站建设过程中的优势及不足,为档案网站的服务质量改进提供必要的理论支撑。