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三重螺旋创新模型是近几年国际创新研究的又一课题,主要研究在创新活动中大学、产业、政府间的关系.信息流动贯穿于整个创新过程,也是三重螺旋模型研究的一个重要组成部分.三重螺旋中的信息流动具有主体多元化,信息流动呈现非线性的特征,因此传统的线性分析方法难以解决三重螺旋中信息流动的问题.本文在介绍三重螺旋基本观点的基础上,提出了应用信息论和社会网络分析方法相结合研究三重螺旋中创新信息流动的主体分布问题并给出具体算法. 相似文献
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基于三重螺旋模型的中小企业创新战略选择 总被引：2，自引：0，他引：2
通过介绍大学-产业-政府关系的三重螺旋模型的提出、发展、生成机理和作用机制,把三重螺旋创新模型与其他创新模式进行了比较.在此基础上,结合中小企业的发展状况和所面临的创新障碍,认为三重螺旋模型是适合中小企业创新的战略选择,且有利于提高自主创新能力. 相似文献
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通过对现有相关文献和研究成果的梳理,探讨三重螺旋模型的理论构建和实证检验,并进一步探索其修正路径。自Etzkowitz和Leydesdorff提出三重螺旋模型以来,理论研究日益深入和拓展。丰富的实证研究肯定了三重螺旋模型对创新实践的解释力。未来的发展在于在治理理念的指引下,探讨N重螺旋模型;基于创新的过程,定位大学、企业、政府的角色;通过广泛的个案研究,考察背景条件的影响;在大数据时代背景下,加强定量研究。 相似文献
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对近年来三重螺旋创新模式相关研究的动态进行梳理,从三螺旋主体的重新定义、三螺旋模式运行机制、实证研究、平台和媒介的研究以及对研究人员的研究进行综述和回顾,并对今后该领域的研究进行展望。 相似文献
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官产学三重螺旋创新系统模型研究 总被引：12，自引：1，他引：12
本文对于国际学术界引起卓越反响的官产学三重螺旋创新理论,进行了知识集成和系统综述研究,给出三重螺旋创新系统理论及其相应研究的一些新近进展情况。 相似文献
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知识生产“模式3”概念提出以来，学界对于“创新生态系统”的刻画和解析趋向于更高维度的结构复杂性、主体协同性和情境适应性等方面展开。为此以知识生产模式变革作为牵引，以多重螺旋创新模型作为切入视域，按照创新理论不断丰富发展的演进脉络，分别对三重螺旋、四重螺旋和五重螺旋视域下创新生态系统的研究成果进行理论梳理和系统综述。回顾发现，多重螺旋分析视域在其解析维度上的增加，是伴随研究者们对于创新生态系统内外部运行机理，在其组成结构的复杂性和交互性方面认知程度的不断细致和加深而递增。三重螺旋作为经典的刻画模型，为解释在不同制度安排之下，大学、产业和政府这三类参与主体协同创新效率的差异性问题奠定了基础。四重螺旋作为三重螺旋的进阶展示，深刻揭示出螺旋动力中隐含的信任危机和民主约束，从而为高级知识经济社会发展阶段，公众对于科学本身进行“后常规科学”的思考开辟出了制度反思的空间。五重螺旋则是在创新生态系统真正直面生态问题后的进阶反思，清楚回应了在自然环境的约束之下创新和可持续究竟该怎样实现协同这一现实问题。作为研究展望，建议在三个方面进行更为深入的思考：一是如何认识好“政府主导型”螺旋模式在创新生态系统演进... 相似文献
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基于三螺旋模型的官产学合作创新机制与模式 总被引：7，自引：0，他引：7
根据三螺旋创新模型,政府、产业、大学三机构除了完成他们的传统功能外,还表现出另外两机构的作用.该模型为官产学建立长期的合作创新提供了理论依据.在合作创新机制中三机构既有明确的分工,在功能上又存在一定的重叠.科技企业孵化器和官产学联盟是三重螺旋发展到组织阶段两种典型的官产学合作创新模式. 相似文献
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以产业集群层面下官产学三重螺旋关系为研究对象,分析产业集群成长过程中的官产学三螺旋关系的演变特征,并比较硅谷和张江产业集群发展中三重螺旋关系的演变,提出加强官产学三重螺旋关系紧密度的建议. 相似文献
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A research 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 in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
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. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
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. 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US 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 the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
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. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
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. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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Active biological molecules 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 therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
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. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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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. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
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. 相似文献