建立三维因子结构选择cai模式

本文对当前教学中各种主要的cai模式进行了分析比较，阐析了它们的特点及其所起的不同作用与功能。在此基础上，从教育心理学角度提出了依据认知目标、学生知识背景、教学组织形式三要素选择恰当cai模式的可操作性方法。     

The skeletons in our closet: E‐learning tools and what happens when one side does not fit all

In the anatomical sciences, e‐learning tools have become a critical component of teaching anatomy when physical space and cadaveric resources are limited. However, studies that use empirical evidence to compare their efficacy to visual‐kinesthetic learning modalities are scarce. The study examined how a visual‐kinesthetic experience, involving a physical skeleton, impacts learning when compared with virtual manipulation of a simple two‐dimensional (2D) e‐learning tool, A.D.A.M. Interactive Anatomy. Students from The University of Western Ontario, Canada (n = 77) participated in a dual‐task study to: (1) investigate if a dual‐task paradigm is an effective tool for measuring cognitive load across these different learning modalities; and (2) to assess the impact of knowledge recall and spatial ability when using them. Students were assessed using knowledge scores, Stroop task reaction times, and mental rotation test scores. Results demonstrated that the dual‐task paradigm was not an effective tool for measuring cognitive load across different learning modalities with respect to kinesthetic learning. However, our study highlighted that handing physical specimens yielded major, positive impacts on performance that a simple commercial e‐learning tool failed to deliver (P < 0.001). Furthermore, students with low spatial ability were significantly disadvantaged when they studied the bony joint and were tested on contralateral images (P = 0.046, R = 0.326). This suggests that, despite limbs being mirror images, students should be taught the anatomy of, as well as procedures on, both sides of the human body, enhancing the ability of all students, regardless of spatial ability, to take anatomical knowledge into the clinic and perform successfully. Anat Sci Educ 10: 570–588. © 2017 American Association of Anatomists.     

《运动解剖学》CAI课件的开发

针对体育教学改革不断深化的现状,论述了《运动解剖学》计算机辅助教学（简称ＣＡＩ）课件开发的现实性、课件设计的原则、课件的类型,以及课件设计的方法。     

多媒体辅助课堂教学让唐诗宋词靓起来

针对当前学生的特点详细分析了当前唐诗宋词的教学矛盾,强调传统教学模式已不能满足学生需要,以及在唐诗宋词教学过程中引入多媒体技术的必要性,并对教学模式改进过程中的成功经验进行了归纳总结。     

Content analysis in empirical social research

An overview of the development of empirical content analysis is presented. Its development relevant to educational research from classical to computer-aided content analysis is traced. The history of hermeneutic text interpretation is included as well as the early developments in the analysis of manifest content of communication. The controversy between quantitative and qualitative schools of research is discussed. A theoretically grounded, practicable model of content analysis is introduced, which fulfills the criteria of empirical social research.     

Gender differences in preschool children’s recall of competitive and noncompetitive computer mathematics games

This study investigated whether competitive and noncompetitive educational mathematics computer games influence four‐ to seven‐year‐old boys’ and girls’ recall of game‐playing experience. A qualitative analysis was performed to investigate what preschool children may have learned through their selective recall of game‐playing experience. A difference emerged in six‐ to seven‐year‐old boys’ and girls’ recall after playing a competitive computer mathematics game, such that boys tended to first recall the consequence of ‘winning and losing’ whereas girls of the same age focused on ‘friendship among animated characters’ in the game. Thus, the qualitative results suggest the possibility that selective attention or selective recall might be partially influenced by gender schemas. Based on the recall sequences, educational noncompetitive computer mathematics games may lead to a better learning outcome for older boys.     

超临界CO2萃取法与微波辅助萃取法提取当归挥发油的比较

采用GC—MS联用技术对超临界CO2萃取法与微波辅助萃取法两种方法提取到的当归挥发油进行了成分和含量分析。当归挥发油中主要活性成分为藁本内酯。用超临界CO2萃取得到的当归挥发油中藁本内酯含量最高,可达60％,但挥发油收率只有1．9％;溶剂微波辅助萃取得到的挥发油中藁本内酯含量较低,为30％-50％,但挥发油收率有2．6％。4．4％。     

Metastable state of clindamycin phosphate in cooling crystallization

The metastable state and nucleation kinetics of clindamycin phosphate （CP） in cooling crystallization were studied by metastable zone width （MZW） method and induction time method. By correlating the MZW experi- mental results with temperature, agitation rate and cooling rate, it is found that the correlation result shows good agreement with the change trend of MZW. The critical nucleation parameters were evaluated based on the classical theory of nucleation; both the interfacial tension and the radius of critical nucleus increased with the decrease of rela- tive supersaturation. The effect of supersaturation on the nucleation rate was analyzed. It is indicated that the new phase formation of CP is governed by mononuclear mechanism.     

云计算辅助教学初探

云计算时代的到来,促进了教育教学改革信息化。从归纳分析云计算目前发展的特征出发,对云计算辅助教学的发展现状进行剖析和研究,旨在发现和提炼云计算发展的本质规律,以期能够把握和指导云计算辅助教学的未来发展。     

超声波辅助法提取藜蒿黄酮的工艺研究

采用超声波辅助法提取藜蒿黄酮,利用正交实验确定提取藜蒿黄酮的最佳工艺.结果表明影响藜蒿黄酮得率的因素顺序为:乙醇浓度>超声处理时间>浸提时间>料液比,在50℃下,用30倍于干物料的60%乙醇浸提6.5h,再超声处理45min时黄酮得率最高(0.899%).