论英语语法的交际化教学

与传统的语法教学模式相比，交际法运用于语法教学具有独到的优势：它使学生的语法学习与语言运用相结合，大大提高了学生的交际能力。基于此因，拟就英语语法的交际化教学的具体方式方法做些探讨。     

Fiber optic biosensor of immobilized firefly luciferase

Luciferase from firefly lantern extract was immobilized on CNBr-activated Sepharose 4B. The kinetic properties of immobilized luciferase were extensively studied. TheK _m′ for D-luciferin is 11.9 μmol/L, the optimum pH and temperature for Sepharose-bound enzyme were 7.8 and 25°C respectively. A luminescence fiber optic biosensor, making use of immobilized crude luciferase, was developed for assay of ATP. The peak light intensity was linear with respect to ATP concentration in range of 10⁻⁹–10⁻⁵ mol/L. A biological application was also demonstrated with the determination of serum ATP from rats bred in low versus normal oxygen environments.     

Using stakeholder feedback to improve online professional development opportunities

Abstract

Traditional professional development is often characterized as being expensive, time consuming, and lacking impact. In contrast, online professional development provides greater flexibility and is becoming increasingly popular for school personnel. In this article, we report the process and outcomes of gathering feedback to adapt traditional in-person to online training differentiated for the participants to maximize utility, efficiency, and effectiveness in meeting the needs of key stakeholders. Focus groups were conducted with teachers, administrators, and other specialists to gather feedback on content as well as how online learning modules (OLMs) could be tailored to meet specific school site and team needs. We discuss our findings in the context of continuing efforts to improve general and specific professional development opportunities.     

仪器设备政府采购管理模式的探讨

就政府采购的含义和特点进行了阐述,详细分析了高等学校仪器设备采购的特点,就仪器设备采购管理的模式及其特点进行了探讨,提出了建立高等学校高效政府采购模式应遵循的原则与通过的途径。     

鲁迅研究的世纪玄览

鲁迅作为20世纪中国最伟大的思想家、学家和精神革命家，以了深刻的精神力量影响了一个世纪的好几代人。对于他的反响、评论和研究，也几乎横亘了整整一个世纪。对鲁迅研究这一学术景观，做一番世纪玄览，能够从一个侧面透视20世纪中国精神化现象史的变迁，     

略论中国历代宫廷文学体派价值

历代宫廷文学体派在中国古代文学史上已呈现为一个明显的文学系列。该系列包含的体派在其各自形成发展过程中和主要创作倾向中,体现出如下几个共性价值特征:一是贵族作家群落构成其创作主体,他们以重建新王朝文学为己任,自觉或不自觉地用创作和理论领起、规范出一代文学并使其更为艺术化,从而推动文学的自觉;二是这些体派作家所表现出的片面讲求诗文艺术形式的倾向,往往激发起文学革新思潮,有时此种思潮甚至就由其内部发生,从而使历代宫廷文学体派大多具有启发文学革新思潮的价值;三是反映出其时贵族生活的风貌、文化心态和审美趣味,并一定程度地烘托、反映出特定历史时期的国家气象;四是体现出对女性超功利的审美倾向,并在美学史上创造出特定的贵族式女性审美模式。     

论宋末元初临安词人的群体特征

针对宋末元初临安词人的群体特征及其成因,认为由生活的富足进而讲求生活情调的高雅,由生活情调的高雅进而讲求艺术趣味的高雅,由艺术趣味的高雅进而讲求词作格调的高雅,是此词人群必然的发展趋势。国亡之后,词人群体特征的内涵发生了质变。     

Authorware中如何实现对flash动画的灵活控制

本文主要探索了如何使用各种语句脚本制作一种播放器,该播放器利用按钮控制与进度条控制相结合,实现在Authorware中对flash动画进行播放控制,提升了flash动画播放控制的灵活性和交互性。     

慢启动半导体激光器驱动电源的设计

根据半导体激光器的光功率与电流的关系,通过慢启动电路、纹波调零电路、功率稳恒电路等解决了使用中的电源在工作温度范围内其输出功率不稳定的问题。设计的电路稳定度达到4×10-4。     

浅谈歌唱的呼吸

胸腹式联合呼吸法以气吸得深、支持感强、控制得力、声音流动感强的优越性为当今声乐教学中普遍采用。练习呼吸的方法有无声练习、有声练习、打嘟噜练习等。练习呼吸应注意站姿自然,采用口鼻同吸,不能吸得过分饱满,控制呼吸的力量要适当。