共查询到20条相似文献，搜索用时 62 毫秒
1.
科技创业人才活力与区域经济发展实力和潜力互为依存.科技创业人才与区域环境的相互作用构成了科技创业人才生态系统,文章提出了区域科技创业人才生态系统概念和定义,在理论上又对科技创业人才与创业生态系统影响关系进行了假设,并运用结构方程模型验证了科技创业人才对创业支持环境、经济市场环境、社会文化环境、生活服务环境的互动关系,为深入研究科技创业人才生态系统奠定基础. 相似文献
2.
通过建立复杂的创业生态系统模型,纳入发展周期变量,运用仿真的方法完整地模拟了企业创业生态系统中各主体之间的相互作用,将创业企业按成长阶段划分为新创业企业和成熟企业,主要探讨新创企业的策略和成熟企业的策略对创业生态系统绩效的影响,为提升创业园区绩效提出建议。研究结论表明:(1)成熟企业独立探索策略较合作探索策略对创业系统绩效正向影响较大;(2)初始创业企业选择开发型策略更有利于创业生态系统绩效提升。 相似文献
3.
4.
5.
科技创业企业种群生态位测度方法研究 总被引：1，自引：0，他引：1
科技创业对于促进区域经济发展和科技进步至关重要。引入生态位理论提出了区域科技创业企业种群生态位概念,借鉴物种生态位测度思想构建了科技创业企业种群生态位的测度模型。以青岛为例分别测度了科技创业企业种群的生态位宽度和重叠度,并利用综合评价模型对科技创业生态位适宜度进行了评价。 相似文献
6.
创业生态系统研究述评及动态模型构建 总被引：1，自引：0，他引：1
创业活动深受创业环境及其相关主体的互动作用的影响,基于创业者所形成的创业生态系统日益受到学术界和政策咨询界的关注。通过系统的文献梳理,进而阐述了创业生态系统的内涵与构成要素,回顾了创业生态系统结构模型与健康状况评价模型,综合比较分析后构建创业生态系统动态模型。在此基础上,对创业生态系统未来研究提出展望。 相似文献
7.
数字经济的蓬勃发展正在有力地推动着乡村的全面振兴,淘宝村、淘宝镇的涌现正是其重要体现,农村电商创业生态系统与新创企业之间的影响机制也因此成为一个关键问题。尽管现有文献已经探讨了创业生态系统的组成要素和关键参与者,但是在解释创业生态系统的竞争力和系统中新创企业绩效方面仍显不足。许多研究都强调了生态系统的健康性在创业生态系统持续发展过程中发挥的关键作用,它会影响所有生态系统参与者的命运。创业生态系统内资源相对稀缺,通过创业拼凑的方式是新创企业取得发展的有效途径之一。从微观的企业视角出发,在分析理解创业生态系统理论和创业拼凑理论的基础上,依据“环境感知—行为—结果”的研究逻辑,构建“创业生态系统健康性—创业拼凑—新创企业创业绩效”的理论模型,采用问卷调查方法,以泽国镇农村电商创业生态系统中的电商企业为研究对象,采用统计分析软件SPSS 22.0和AMOS 24.0对收集的605家电商企业的样本数据进行信效度检验,并构建结构方程模型,对假设进行检验,实证结果显示：（1）创业生态系统中生态稳定性和生态多样性对新创企业创业绩效具有正向影响;（2）创业拼凑对新创企业创业绩效具有正向影响;（3）创业生... 相似文献
8.
为评估浙江省科技创新创业政策效果,采用AHP分析法,建立科技创新创业政策实施效果评价指标模型,从科技创新创业政策特性、效应、主题、创业态度、创业活动指数、创业抱负和创业幸福感等7个方面、25个指标评价科技创新创业政策效果,最后从强化科技创新培育政策的顶层设计、实施区域均衡的科技创新培育政策、科学优化科技创业企业扶持政策投入比例等方面提出优化浙江科技创新创业政策体系。 相似文献
9.
为评估浙江省科技创新创业政策效果,采用AHP分析法,建立科技创新创业政策实施效果评价指标模型,从科技创新创业政策特性、效应、主题、创业态度、创业活动指数、创业抱负和创业幸福感7个方面25个指标评价科技创新创业政策效果,最后从强化科技创新培育政策的顶层设计、实施区域均衡的科技创新培育政策、科学优化科技创业企业扶持政策投入比例等方面提出优化浙江省科技创新创业政策体系。 相似文献
10.
为了揭示孵化器影响高层次人才入孵企业创业绩效的机理,从孵化器网络关系嵌入的视角出发,基于江苏省苏南地区50家国家级孵化器引进的378个高层次人才创业企业样本,使用结构方程模型进行分析,结果显示:孵化器资源支持通过孵化器网络关系嵌入显著影响高层次人才创业绩效。科技镇长团的推荐和引导能显著提高孵化器网络关系嵌入在政策支持资源、开放网络资源和创业绩效之间的中介效应。研究对于孵化器创新创业生态系统塑造和高层次人才引进具有理论和实践意义。 相似文献
11.
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
12.
《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
13.
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
14.
《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
15.
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
16.
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
17.
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
18.
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
19.
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
20.
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