An investigation of Taiwan University students' perceptions of online academic help seeking, and their web-based learning self-efficacy

This study was conducted to investigate Taiwan University students' perceptions (including experience, confidence and preference) of online academic help seeking (OAHS) and students' level of web-based learning self-efficacy (WLSE). Two instruments, OAHS questionnaire, consisting of information searching, formal and informal query scales, and WLSE questionnaire, including general and functional scales, were then validated through collecting the responses from 300 university students. Results indicate reciprocal relations between experience, confidence and preference in students' online academic help seeking behaviors. Students' academic help seeking behaviors were related to their general self-efficacy in a web-based course setting. Students' functional WLSE was related to their perceptions of information searching for OAHS. Findings of this study also imply that students' experience of seeking help from informal online channels is prominent when they participate in a web-based course.     

THE DEVELOPMENT OF A COMPETENCE SCALE FOR LEARNING SCIENCE: INQUIRY AND COMMUNICATION

The objective of this study was to develop an instrument to measure school students’ competence in learning science as part of a large research project in Taiwan. The instrument consisted of 29 self-report, Likert-type items divided into 2 scales: Competence in Scientific Inquiry and Competence in Communication. The Competence in Scientific Inquiry scale contained 4 subscales: presenting questions and hypothesis, planning, experimenting and data gathering, and data analyzing, interpreting, and concluding. The Competence in Communication scale contained 4 subscales: expressing, evaluating, responding, and negotiating. Students were recruited randomly from primary, junior, and senior high schools in different regions of Taiwan to validate the instrument and establish its reliability and validity. The results of the analyses indicate that the instrument, scales, and subscales have reasonable internal consistency; that the theoretical structure was supported by empirical data; and that the subscales are homogeneous. These results indicate that it is an appropriate tool for measuring students’ competence in learning science. Implications and suggestions for further studies are included.     

高校教育信息化建设的定位探析——以江苏高校淮海工学院为例

信息化已经成为全球各行各业发展的必然要求,信息化建设水平也已成为衡量一所高校教学、科研、管理水平的重要标志。文章在介绍"国家对教育信息化建设的最新要求"和"江苏省对高校教学信息化建设的最新指导意见"基础上,阐述了高校教育信息化的发展趋势,分析了淮海工学院教育信息化建设的现状和存在的问题,并由此进一步指出了普通高校教育信息化建设应坚持的共性发展定位。     

一类有向欧拉图的优美性

研究了有向欧拉图，证明了，优美的必要条件，并且证明了和的优美性．     

基于C/S模式的社会保险档案管理信息系统的设计与实现

结合社会保险领域档案管理工作的实际,以湖北省荆州市社会保险事业局安泰社保服务中心档案管理信息系统为例,提出了一个面向社会保险事业档案管理的将人工智能技术、决策分析技术和数据库技术相结合的智能化管理信息系统的模型,介绍了基于C/S(客户机/服务器)模式网络MIS档案管理信息系统应用于社会保险领域的结构和功能,分析了网络环境中系统实现的一些设计策略,并给出了社会保险档案管理信息系统的具体实现。     

大力拓展独立创业者成长的教育空间

大学生独立创业能力不足 ,关键在于大学生学习方式、个性发展的多样性与大学教育教学模式的同一性之间存在着矛盾。高等学校要真正培养具有独立创业能力的大学生 ,必须进一步科学认识创造性人才的特征及其要求 ,深化教学改革 ,全方位拓展独立创业者成长的教育空间。     

聚偏氟乙烯与无规-聚甲基丙烯酸甲酯相容性的研究

本文证明了PVDF与at-PMMA共混物中两者之间非常弱的相互作用 .随着PVDF质量分数的提高 ,共混物显示出更为异相的性质 .通过红外光谱的示差扫描技术 ,减去共混物谱图中PVDF和at-PMMA的谱图 ,显示在高PVDF含量时 ,υc=o吸收峰向低波数移动 ,表明它们之间的相互作用存在于PMMA的羰基和PVDF的H原子之间 .接触角测量表明随着PVDF含量的提高 ,膜的憎水性增强 .当PVDF的含量超过 30 % (质量 % )时 ,对水的接触角大于 90° ,显示了优异的憎水性 .但是 ,膜可以被正己烷完全润湿 ,因而对正己烷的接触角测量不到     

Adaptive synchronization of chaotic Colpitts circuits against parameter mismatches and channel distortions

In this work, synchronization of chaotic Colpitts circuits, using adaptive controllers to combat circuit parameter mismatches and channel distortions, is studied by numerical simulations. Synchronization errors caused by different main circuit components are compared, and compensation for time-constant and time-varying circuit parameter mismatches is demonstrated. Different kinds of channel distortions, including time-constant and time-varying channel attenuation, Additive White Gaussian Noise (AWGN) are all investigated by numerical simulations and discussed. Simulation results indicated that the synchronization performance of chaotic Colpitts circuits can be greatly improved by applying adaptive controllers when parameter mismatches and channel attenuation are considered as time-constant or time-varying, but have no obvious enhancements regarding the effect on AWGN channel.     

非线性粘弹性梁的混沌运动

The integro-partial-differential equation that governs the dynamical behavior of homogeneous viscoelastic beams with geometric and material nonlinearities is established. The material of the beams obeys the Leaderman nonlinear constitutive relation. In the case of simple supported ends, the Galerkin method is applied to simplify the integro-partial-differential equation to a integro -differential equation. The equation is further simplified to a set of ordinary differential equations by introducing an additional variable. Finally, the numerical method is applied to investigate the dynamical behavior of the beam, and results show that chaos occurs in the motion of the beam.     

关于活动课在中小学素质教育中的作用的调查研究

新型活动课程的设立有助于优化我国中小学的课程结构,加速基础教育“转轨”的进程,促进中小学素质教育的发展。研究结果表明：在中小学开设科技活动课可以提高学生的科学素养;可以提高学生的创新能力和学习能力;可以培养学生的合作精神,增强集体荣誉感,是应试教育向素质教育转轨的重要举措,是培养新型人才的重要途径。但是至今仍存在一些问题,有一些学校对开设活动课的意义认识不足,而没有开设,有的开了课没有遵循活动课的基本原则而有名无实,有的没有专职教师等,这些问题都有待于解决。