举办对口招生预科班,提高生源质量

对口招生是职技高师为探索培养有理论,有实践,留得住,用得上的职教师资而进行的一项重要改革。为了提高对口招生生源质量,进一步完善此项改革,今年我院首次举办了对口招生预科班。本文着重从举办预科班的原因、预科班的基本做法、预科班教学计划和培养目标、现状与反映、思考与探索等方面全面介绍预科班的情况。     

浅述模块辅导法--兼谈《线性代数》课程的教学改革

本文论述了模块辅导法的基本理论与基本原则，并对《线性代数》课程的模块辅导进行了初步的探讨。     

概率模型与Cauchy-Schwarz不等式

本文讨论了概率模型方法的基本思想,并利用概率模型法证明了分析中著名的Cauchy-Schwarz不等式。     

现代汉语完句的语用解析

现代汉语完句成分是依附于由实词构成的句干、使静态句干实现为动态句子所具有的句级功能性成分.在语用上,汉语句子层级性构造的外围是语境,它是必不可少的"完句背景";语气的完句作用也不可或缺,各类句调的完句作用强弱可以排列为祈使＞感叹＞疑问＞陈述,和言语行为的类型密切相关.     

Tandem Biocatalysis by CotA-TJ102@UIO-66-NH2 and Novozym 435 for Highly Selective Transformation of HMF into FDCA

2,5-Furandicarboxylic acid(FDCA) is a potential biorenewable chemical for applications including plastics, polyamides, drugs, etc. The selective biosynthesis of FDCA from 5-hydroxymethylfurfural(HMF) by a specific enzyme poses a great challenge. In this study, we reported an efficient strategy to produce FDCA from HMF by the tandem biocatalysis of laccase(Cot A-TJ102@UIO-66-NH_2) and Novozym 435. For the first step, a nanoparticle metal–organic framework was synthesized as a carrier to immobilize Cot A-TJ102@UIO-66-NH_2, which was assigned for the production of 5-formyl-2-furancarboxylic acid(FFCA) and featured an enzyme loading of 255.54 mg/g, specific activity of 135.90 U/mg, and solid loading ratio of 99.65%. Under optimal conditions, an ideal FFCA yield of 98.5% was achieved, and the Cot A-TJ102@UIO-66-NH_2 presented a high recycling capacity after 10 cycles. For the second step, Novozym 435 was applied for the further conversion of FFCA into FDCA, presenting a high FDCA yield of 95.5% under the optimized conditions. Novozym 435 also exhibited a high recyclability after eight cycles. As a result, the tandem biocatalysis strategy provided a 94.2% FDCA yield from HMF, indicating its excellence as a method for FDCA production.     

我国高等继续教育持续发展方略

近年来,我国高等继续教育在高等教育大众化发展历程中发挥着重要作用,同时自身也取得了长足的发展,并形成目前的基本格局。随着高等教育向内涵发展方向的调整,高等继续教育要想保持发展态势,必须在坚持特色、充实内涵、提高实力上下功夫。     

Development of a plastic injection molding training system using Petri nets and virtual reality

INTRODUCTIONAt present, plastic as a substitute for metals in products is the most important mainstay in industrial raw materials. Furthermore, plastic injection molding is one of the most common and versatile methods for mass production of complex plastic parts with excel-lent dimensional tolerance. Since the technology of injection molding has been widely applied in manu-facturing, training on injection molding is of great importance. The traditional approach is to consult some technica…     

振奋精神 扎实工作 努力实现我国特殊教育事业的新发展——在第三次全国教育工作会议上的讲话

第三次全国特殊教育工作会议今天隆重召开了.这次会议是面向新世纪,贯彻落实中共中央、国务院《关于深化教育改革全面推进素质教育的决定》和江泽民同志《关于教育问题的谈话》精神,进一步推进特殊教育改革和发展的一次具有重要意义的会议.     

学习者元认知作用机制:面授与远程学习之比较

本研究重点探讨了面授学习者与远程学习者在元认知作用机制上的差异。首先通过文献研究建立起预设概念模型,分别向面授学习者和远程学习者发放调查问卷,共回收有效问卷424份,然后通过责任教师取得研究被试的课程成绩,使用结构方程模型多群组分析方法比较面授学习者与远程学习者的元认知活动对其学习成绩和学习效能感的作用和影响,最后提出对远程学习者进行元认知支持的策略。     

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.