浅谈技校物理教学中多媒体技术的应用

实验是技校物理教学的基本内容,但技校学生一直对物理学科的学习缺乏积极性。多媒体教学方式可以极大提高学生的学习兴趣,激发学生的学习激情。本文首先介绍了多媒体技术在技校物理教学中的作用,其次分析了技校物理教学应用多媒体应该注意的一些问题。最后做出总结,技校物理教学应该辩证对待多媒体,重点需要落实在培养学生的实际操作能力上来。     

油层物理教学中加强石油文化教育的尝试

油层物理是石油工程专业的一门专业基础必修课,基本概念多、研究机理多、计算公式多,传统教学方法和手段对课堂的掌控力度不够,课堂沉闷、知识点枯燥,教学难以长时间吸引学生的注意力。本文在油层物理教学中融入与石油结合的传统文化教育,通过知识穿插、兴趣提升和思维切换,提高学生注意力,实现学生专业知识和综合素养的双提升。     

大学物理知识与慕课实验的结合

本文介绍了在大学物理的学习中,如何通过一些列小实验将物理知识点形象地、深入地让学生理解,让物理知识不再枯燥无味,而是鲜活有趣。本文列举的实验以清华大学安宇教授的的慕课课程《大学物理2(电磁学、光学和量子物理)》为依托,主要是电磁学方面。通过大学物理知识与慕课实验相结合的教学探索,希望对大学物理的教学改革有所促进。     

尝试教学法在技校物理教学中的运用

技校学生的身心发展特点、知识水平和学习能力以及物理学的学科特点都符合进行尝试教学的原则,本文作者经过几年的教学实践,充分证实了尝试教学法在技校物理教学中可行性和必要性。     

尝试教学法在技校物理教学中的运用

技校学生的身心发展特点、知识水平和学习能力以及物理学的学科特点都符合进行尝试教学的原则,本文作者经过几年的教学实践,充分证实了尝试教学法在技校物理教学中可行性和必要性.     

大学物理教学中合作性教学探析

随着现代教育不断的改革,我国大学生的高等教学也不断进行调整,但由于教学方式的变迁,大学物理教学随之出现问题。在物理教学中,教师通过不断改变物理教学模式,使大学生对物理渐渐产生兴趣,通过观察学生学习兴趣与方式,教师在全新教学方式中融入合作性教学方式,从而让学生对物理有所了解,掌握物理知识点,主要探究在大学物理教学中应用合作性教学成果。     

高职物理实验教学中"任务驱动"法的运用

物理这一学科的基础是实验,因此在进行物理知识的学习过程中做好实验对学习好物理知识有着至关重要的作用。"任务驱动"式教学方法来自于职业教育,适用于一切可以通过实际动手操作,进而总结出知识点的教学内容,而在进行物理知识的学习过程中,对学生的实际动手操作能力要求也比较高。因此在进行高职物理实验的教学过程中采用"任务驱动"式教学方法,可以更加充分地体现出学生的主体地位,进而促进学生自我思考能力的提高,养成好好学习、合作学习的习惯。故而,本文将对"任务驱动"式教学方法在高职物理实验教学中的运用进行探析,以期对高职物理实验教学有所帮助。     

浅谈高中政治哲学教学中的诗词渗透

由于高中政治哲学教学中的哲学知识过于枯燥乏味,并且具有抽象性、理解难度大等特点,导致学生在学习过程中经常遇到阻碍。当在政治哲学教学中融入诗词,可以帮助学生对抽象的哲学知识进行理解,从而提高高中政治哲学教学质量。     

"同化、顺应、认知与心理冲突"教学法

不同的教师组织物理教学活动的模式可以千变万化、而且各有千秋，本文探讨“同化、顺应、认知与心理冲突”的教育模式的出发点是从学生的已有知识、心理发展规律出发，因势利导、循序渐进地进行物理教学的一种模式，它可以大大降低教学难度达到启发学生积极思维的效应。     

注意学生体验，构建深度思考的物理课堂

在初中物理教学中,教师要为学生留有体验、思考、感悟的空间,激发他们的探究兴趣,让他们在实践中深度理解物理知识。教师可以从日常生活、演示实验、操作实验、创设情境、融入技术等角度出发,探究体验教学在初中物理教学中的有效运用。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

Low doses of a red wine ingredient figh diabetes in mice

Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence