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在国外若干数字图书馆技术接受模型的基础上,针对如何促使投入巨大成本建成的信息资源被用户有效使用的问题,研究了公共图书馆网站用户技术接受行为的影响因素,构建了图书馆网站用户技术接受概念模型,并以南京理工大学图书馆网站为例进行了实证研究,最后采用结构方程分析方法对概念模型中结构变量间的关系假设进行了验证。结果表明,模型中提出的多数变量都对用户积极使用图书馆网站意图具有直接或间接的显著影响,这对于公共图书馆促进用户有效使用网站具有重要意义。 相似文献
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[目的/意义]探究强关系社交媒体用户消极使用行为的形成机理及各变量的交互作用模式，为强关系社交媒体开发商及运营商在改进服务品质、优化使用体验和提高用户黏性等方面提供具有积极意义的意见和建议。[方法/过程]基于使能和抑能的双重分析视角，以强关系社交网络的典型应用微信朋友圈为实证研究对象，通过对经验用户进行深度访谈获取文本数据，并采用扎根理论的开放式编码、主轴编码、选择性编码等3个步骤提取概念、范畴来构建概念模型，并进行理论饱和度检验。[结果/结论]信息过载、社交过载、系统不满意度等情境因素和感知隐私风险、心理疲劳、使用沉溺等认知因素促进了用户的消极使用行为。网络外部性、群体规范、附加功能价值、转换障碍等情境因素和信息需求、功能需求、情感需求等认知因素抑制了用户的消极使用行为。用户在使能因素和抑能因素的双重力量的作用下产生取消提示、屏蔽、节制使用、潜水、间断使用等不同程度的消极使用行为。此外，人口学特征、人格特征、关系特征和使用特征等个体因素对使能因素和抑能因素与用户的消极使用行为之间的强度关系起调节作用。 相似文献
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SNS采纳后阶段的持续使用行为是SNS成功的关键,本研究提出情感依恋在用户持续使用意向形成过程中起关键性作用,用户的持续使用意向将受到情感与认知的双重作用。在整合ECM-ISC模型以及情感依恋相关理论、依恋强度ARC模型、情感扩建相关理论的基础上,构建了概念模型,以微信朋友圈经验用户为调研对象,进行了实证研究。研究结果表明：改进后的模型具有更高的解释力,感知有用性、满意和情感依恋对持续使用意向有显著影响,并间接影响用户的持续使用行为。用户关联、能力以及自主需求的满足会促使用户产生情感依恋并在情感扩大机制的作用下促使用户产生持续使用意向,同时满意度对于情感依恋也具有显著的正向作用。 相似文献
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以新浪微博为背景,本文在界定企业微博质量的定义及其构成维度的基础上,提出了企业微博质量的测量指标,构建了企业微博质量影响用户行为意向的概念模型。通过应用SmartPLS2.0对337份有效问卷进行分析,对模型进行了验证。研究结果表明,企业微博质量可以划分为信息质量和交互质量两个维度,它们通过用户满意和信任这两个中间变量正向影响用户行为意向。最后,本文对改善企业微博质量,企业有效利用微博培养用户粘性提出了一些建议。 相似文献
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《中国科学院院刊》2015,(2)
社交网络用户行为是用户在对自身需求、社会影响和社交网络技术进行综合评估基础上做出的使用社交网络服务的意愿,以及由此引起的各种使用活动的总和,是在线社交网络研究的重要内容。在线社交网络用户行为的研究对揭示在线社交网络结构的演化规律、信息传播规律以及有效监控网络突发舆情等具有重要的理论意义和实践价值。文章介绍了在线社交网络用户行为的研究背景,着重总结了当前在线社交网络用户行为的主要研究成果。在线社交网络用户行为的研究目前主要集中于3方面:用户采纳与忠诚、用户个体使用行为和用户群体互动行为。用户采纳与忠诚的研究解释了用户为什么使用社交网络,用户个体使用行为的研究揭示了用户如何使用社交网络,用户群体互动行为的研究揭示了用户之间的互动机理。最后,展望了在线社交网络用户行为在用户行为一致性、用户间行为的相互影响、监管政策与用户行为间的相互作用以及专业性社交网络、移动社交网络等方面的研究机会。 相似文献
6.
企业竞争力的增强越来越依赖于所拥有的知识,知识转移绩效是保持企业竞争优势的关键所在。服务模块化通过推动企业内知识实现高效分工、组合,促进企业的知识转移活动。以服务模块化为中介变量,构建知识粘性对知识转移绩效作用机制的概念模型,使用层次回归模型对概念模型进行实证分析。实证结果表明：知识粘性对知识转移绩效有正U影响;知识粘性对服务模块自律性和界面标准化有正U影响;服务模块自律性和界面标准化对知识转移绩效有正向影响;服务模块自律性和界面标准化在知识粘性与知识转移绩效关系间起部分中介作用。研究结论有助于完善服务模块化,提高知识转移绩效。 相似文献
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社会网络服务的发展使得网络知识社区日渐成熟和普及,随着网络知识社区服务的发展和用户数量的累积,用户的持续使用行为已成为人们日益关注的问题。本文从网络知识社区用户行为引发机制出发,构建了基于三维结构的网络知识社区用户行为引发模型,通过实证调查分析用户持续使用行为的影响因素,并对网络知识社区服务提出优化建议,希望能对网络知识社区的发展提供有益参考。 相似文献
8.
将经典的采纳行为研究理论与创新扩散理论、网络外部性相整合,再结合移动阅读自身特点,构建了概念模型,接着分别对概念模型中各个维度进行要素选取,进而形成移动阅读用户接受模型,然后对模型中各个要素进行了分析和说明,最后提出了几点管理建议。 相似文献
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本文以经典的技术接受模型的理论框架为基础,整合社会化网络的基本特征,增加体现社会化网络特征的感知互动、感知愉悦和感知分享3个变量,用结构方程模型来构建用户对网络公开课的接受意愿概念模型。通过模型分析验证,研究了用户网络公开课使用行为的影响因素,从而提出改进网络公开课利用效率的对策建议。 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
12.
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
13.
《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
14.
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
15.
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
16.
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
17.
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
18.
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
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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
20.
Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献