共查询到20条相似文献，搜索用时 140 毫秒
1.
在定性分析基础上,系统揭示区域协同创新驱动因素及影响因素,构建其作用模型并形成相应研究假设;建立区域协同创新驱动因素及影响因素评价指标体系,基于效率视角选择其测度方法并构建相应测度模型;进行实证研究,测度区域协同创新驱动因素的驱动强度及影响因素的影响水平,进而对研究假设进行检验,揭示我国区域协同创新驱动因素及影响因素的作用机理,并提出促进区域协同创新的策略建议.研究发现:我国区域协同创新主要受政府、市场和企业三方因素驱动;环境质量因素和创新主体能力因素对协同创新具有正向影响,而创新主体距离对区域协同创新具有显著的负向影响;区域协同创新效率与区域经济发展水平间存在显著的正相关关系. 相似文献
2.
县域农业创新系统效率评价及分析--对河北、山东两省的实证研究 总被引：2，自引：0，他引：2
以创新系统理论为基础，采用DEA-Tobit两步法对山东与河北两省的共78个县域农业创新系统效率进行了评价分析，结果表明，农村基础教育水平、“市场建设”以及“技术服务和推广人员工资水平”对县域农业创新系统效率具有显著的影响，而政府科技经费与中高等教育水平并不具有显著的影响。提出了提高县域农业创新系统效率的建议。 相似文献
3.
借鉴随机前沿距离函数模型测评了我国西部地区的科技创新效率,并从科技资金投入、科技转化能力和科技发展水平三个方面对科技创新效率的影响因素进行了量化分析。研究发现：西部地区整体科技创新效率水平较低,区域内部的科技创新效率差异较大;对科技创新效率影响因素的分析表明：企业科技资金投入与科技创新效率呈明显的正相关关系,而政府科技资金投入与金融机构的科技资金投入对科技创新效率无显著作用;反映科技转化能力的科企合作与校企合作均对科技创新效率为负向作用;科技发展水平与科技创新效率呈显著的正相关关系。 相似文献
4.
运用DEA-HR-LCV三步法模型,测度与分析农业科技创新系统的协同创新能力、系统内部融合程度及其制约因素。研究结论显示：(1)农业科技研发团队与农户技术效率的提升受制于其规模效率,专业协会组织作为新型农业科技推广与社会化服务组织,其技术效率显著高于传统农业科技推广部门;(2)专业协会组织的融入显著提升了农业科技创新系统的协同创新能力,整体处于“协调且一般有效”状态,但尚有较大的提升空间,而农业技术创新链与产业链的“极弱融合”是主要制约因素;(3)农业科技系统内部子系统间尚未实现深度融合,且存在较大的区域差异,尤其是农业技术创新链与产业链间的“极弱融合”,其原因主要表现为科研及研发不足、农业科技推广与社会化服务不足与农业科技采纳与应用不足。据此,作者提出了加快新型经营主体的培育与完善、深化农业科技体制改革、加强农业技术创新链与产业链的深度融合,以及构建与完善农业科技创新系统的协同机制的对策建议。 相似文献
5.
产业链与技术链双向融合下的我国农业科技创新系统的协同发展研究——基于新型经营主体培育视角 总被引：1，自引：0，他引：1
运用DEA-HR-LCV三步法模型,分析农业科技创新系统的协同创新问题。研究表明,农业科技研发团队与农户技术效率的提升受制于其规模效率,专业协会组织的技术效率显著高于传统农业科技推广部门,提升农业科技创新系统的协同创新能力,整体处于"协调且一般有效"状态,而农业技术创新链与产业链的"极弱融合"是主要制约因素,科技研发、农业科技推广与社会化服务及农业科技采纳与应用等方面的不足是导致农业科技系统内部未深度融合的主要原因。 相似文献
6.
区域创新效率的环境影响因素分析——基于DEA-Tobit两步法的实证检验 总被引：6，自引：0，他引：6
应用DEA—Tobit两步法对我国省际区域创新效率的环境影响因素进行分析．实证结果表明,劳动者素质与区域创新效率之间存在显著的正相关关系,而创业水平与区域创新效率之间则呈现显著的负相关关系,这可能与创业期企业规模较小有关．进一步分析显示,劳动者素质对区域创新效率的显著影响主要受教育投资力度这一因素影响,而平均受教育程度的影响并不显著;创业水平对区域创新效率的显著负影响主要受到民营科技企业的影响,而高技术企业的影响并不显著．本文结论为我国区域创新工程建设提供政策启示． 相似文献
7.
以2003-2007年中国30个省份的数据为基础,应用DEA - Tobit方法分析区域创新环境对区域创新效率的影响.研究发现,我国区域创新效率的整体水平并不高且没有明显的上升或者下降趋势;劳动者素质、金融环境、创业水平与区域创新效率之间呈显著的相关关系,其中劳动者素质、创业水平与区域创新效率呈显著正相关关系;金融环境与区域创新效率呈显著负相关关系,原因为在一定的技术、人力等资源投入前提下,良好的金融环境导致创新资金投入冗余,降低了区域创新效率;基础设施、市场环境与区域创新效率之间的相关关系并不显著. 相似文献
8.
《科学学研究》2017,(9)
利用网络DEA方法测算了中国1996-2014年省域"科技-金融"系统效率,在分析其时空演进特征的基础上,构建两阶段GMM模型和空间杜宾模型,实证检验了制度环境、基础设施对"科技-金融"系统效率改善的本地效应和空间溢出效应。研究发现,中国整体"科技-金融"系统效率呈上升趋势,且具有显著正向空间关联;不考虑空间因素时,制度环境、基础设施水平的提升均有利于本地"科技-金融"系统效率的改善;考虑空间因素后,基础设施的直接效应与空间溢出依然显著为正,但制度环境的直接效应不显著,且出现显著的负向空间溢出效应,对此的解释是不同区域制度环境水平存在较大差异,导致了创新要素在区域间的单向流动,不利于落后地区的"科技-金融"系统效率提升。 相似文献
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10.
为比较我国省级区域创新系统的创新效率差异性,以便给出相应的政策建议。在给出Malmquist指数评价模型基本原理及评价指标体系的基础上,运用因子分析法对评价指标进行降维处理,提取出投入总量、投入强度、新产品产出、知识产出和绿色产出五大综合评价因子,然后运用Malmquist指数评价模型对我国省级区域创新系统的创新效率进行对比分析,并采用β绝对收敛法对我国省级区域创新系统的创新效率进行收敛检验。研究发现,一方面,我国省级区域创新系统的创新效率在2002—2011年间整体上处于增长状态,创新效率的整体增长动力主要来源于技术进步,技术效率起阻滞作用,规模效率呈现下降趋势;另一方面,各省级区域创新系统创新效率增长存在显著差异,整体上呈现从东北、东部、中部到西部由强到弱的梯度分布,而且β绝对收敛检验表明我国省级区域创新系统创新效率在地区间不存在收敛特征。 相似文献
11.
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
12.
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
13.
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
14.
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
15.
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
16.
Milton Mueller 《The Information Society》2001,17(3):151-163
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. 相似文献
17.
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.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
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. 相似文献
18.
《中国科学院院刊(英文版)》2014,(3)
<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 相似文献
19.
Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels 总被引：1，自引：0，他引：1
《中国科学院院刊(英文版)》2014,(3):267-268
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese 相似文献
20.
WANG Sijia 《中国科学院院刊(英文版)》2014,(2):192-194
<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages. 相似文献