数控技术专业以工作过程为导向的一体化教学研究

制造业技术的飞速发展和数控化的大规模实现,对机械制造业人才的知识和能力提出了新的标准和要求。中职数控技术专业要适应市场经济发展需要,改革人才培养模式,采取以工作过程为导向的项目教学模式,进行实践与理论相结合的一体化教学,为我国制造业的发展,培养更多技术水平高、实践能力强的复合型专业人才。本文主要探讨了我国中职数控专业的教学现状,以及以工作过程为导向的一体化教学改革意义,并提出了相应的策略与措施。     

中职数控专业学生实践能力培养浅谈

随着我国工业现代化步伐的加快,具有时代特征的数控加工技术迅速发展,企业对数控方面的人才也提出了更新、更高的要求。目前现有的数控加工和数控技术人才远远无法满足制造业的需求,主要体现在实践能力方面。从数控专业师资队伍建设、教学改革和实训教学等方面,结合实际探讨如何加强和提高中职数控专业学生的实践能力。     

以能力本位为指导的数控实践教学模式分析

在我国的数控教学中,存在着理论教学与实践教学脱节的状况,这就要求我国的高校和中职院校在进行数控实践教学的过程中,注重对学生进行数控实践教学,这样才能提升学生的数控理论与数控实践操作能力。本文在对现阶段我国的数控实践教学存在的问题进行分析的基础上,就如何优化我国的数控教学工作问题提出几点对策,以提升我国数控专业学生的实践操作能力,并为我国的数控实践教学工作提供借鉴。     

基于工学一体化的中职数控专业“小师父制”教学方法研究与实践

在当前中职学校数控专业教学中，工学一体化理念日益受到重视，并对教师的工作产生了深远影响。以工学一体化为基本需求，中职数控专业教学要突出学生的主体地位，确保教学走深、走实。基于此，文章提出以“小师父制”教学为主体的数控专业教学新思维，力求对教学工作产生积极影响。     

数控专业理实一体化教学模式浅谈

本文以数控专业《数控编程与操作》和《数控加工工艺学》二门专业课理实一体化教学为目标,结合教学中的具体案例,分析了理论教学和实践教学分开的弊端,指出了目前数控专业实行理实一体化教学的必要性和可行性,并对教学的重点环节作出了具体安排。实践证明,理实一体化教学激发了学生的学习兴趣和提高了操作技能,促进了“双师型”建设,是目前中职学校教学改革的必然走向。     

关于中等职业学校机电一体化教学改革初探

基于中职学校学生的技术水平不能得到有效的提高;传统的机电一体化专业教学不能满足经济快速发展的需求这一现状,提出了以实践为导向的机电一体化教学改革。阐述了机电教学改革的必要性、思路和方法,提出在实践环节深化改革,在专业培养方案上努力突出专业特色的重要．陆,淡化了原专业课和专业基础课的界限,对课程实践教学进行了改革,体现了机电教学的特色。     

中职数控加工专业“以工作过程为导向”的教学模式探析

本文对中职学校数控专业发展趋势进行了探讨,对以"工作过程为导向"的教学模式进行分析。     

“以就业为导向，以能力为本位”的中职《计算机操作》课程教学改革探究

中职教育作为我国职业教育的关键组成部分,正在从理论知识型教学向专业技能型人才培养转变。就目前中职《计算机操作》课程教学中存在的问题进行了详细分析,坚持“以就业为导向,以能力为本位”的教学改革思想,提出了基于行动导向的《计算机操作》课程教学改革策略,并据此进行了教学改革实践。     

基于精品课程的工作过程导向课程体系研究——以中职动漫专业为例

以分析专业职业能力作为切入点,依据动漫专业相关职业群的工作过程要求找出典型工作任务,采用项目驱动法设置既满足未来工作需要又为学生终身发展奠定基础的中职课程。精品课程构建要在工作过程导向课程体系的框架下,以信息技术为支撑,以项目教学为引领,进行中职动漫专业精品课程的优质教学内容建设。     

谈中职数控专业实训教学

数控是机械加工的基础与关键技术,也是培养学生主要就业岗位技能的核心课程。中职数控专业突出实践性,而实训是中职数控专业实践教学的主要形式,因此中职数控专业要注重实训教学。如何有效开展中职数控专业实训教学是摆在广大教师面前急需解决的重要问题之一。本文主要立足于数控专业定位及人才培养目标,结合自身教学实践谈谈中职数控专业实训教学建设及实训教学方法的体会。     

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.     

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.     

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.     

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