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1.
本文以计划行为理论（TheoryofPlannedBehavior,TPB）和期望一确认理论模型（ExpectationCOnfirrnationTheOry,ECT）为基础,以用户体验为出发点,通过对交互式学术门户网站使用群体的分析,提出了交互式学术门户网站的持续使用模型假设并进行实证检验,得出有用感知、易用感知、归属感知、交互性、网络外部性均正向显著影响网站的持续使用态度：满意度、自我效能和态度正向显著影响用户的持续使用意向,主观规范对持续使用意向的影响不显著。最后结合模型验证结果对我国学术门户网站的建设和运行提出几点建议。 相似文献
2.
移动互联网用户采纳研究——基于感知利益、成本和风险视角 总被引：1，自引：0，他引：1
基于感知利益、成本和风险视角,对移动互联网用户采纳行为进行研究,构建用户采纳的结构方程模型,以揭示影响用户采纳移动互联网的关键因素及其作用机理。利用SPSS软件对模型量表进行探索性因子分析,使用SmartPLS软件对模型量表进行验证性因子分析和对结构方程模型的假设进行检验。结果显示用户对移动互联网的感知有用性、感知乐趣、无所不在性、感知成本对感知价值影响显著,感知价值、社会影响和感知有用性对用户采纳意向有直接影响,用户创新意识对感知价值与用户采纳意向的关系有显著负向调节作用。最后,对研究结果进行了讨论,提出促进我国移动互联网发展的建议。 相似文献
3.
【目的/意义】基于双路径模型（Elaboration Likelihood Model,ELM）探究互联网环境下用户跨平台学术信息
搜索行为的影响因素,假设用户在多平台学术信息搜索行为的过程中除了受到信息质量（中心路径）与信源可信度
（边缘路径）的影响外,还会受到感知有用性的中介作用以及注意力控制水平与信息自我效能的调节作用。【方法/
过程】通过建立学术信息搜索行为模型,采用问卷调查法收集到 350份有效样本,利用 SPSS 21.0进行数据分析,同
时对搜索模型的感知有用性、注意力控制水平及自我效能要素分别进行了中介效应与调节效应检验。【结果/结论】
结果发现信息质量或信源可信度对感知有用性的影响受到注意力控制水平的负向调节,且注意力控制水平对边缘
路径的调节更为显著,信息自我效能则能加强感知有用性对搜索行为的预测作用。【创新/局限】本研究从行为心理
的微观视角,将注意力控制水平引入双路径模型,为探究跨平台学术信息搜索行为提供新的研究路径。 相似文献
4.
[目的/意义]对智能手机用户信息安全行为意愿进行研究,可以帮助相关的政府或组织更好地提供针对性的信息安全教育和培训。[过程/方法]本文基于社会认知理论,建立智能手机用户信息安全行为意愿影响因素的概念模型,通过调查问卷收集数据并利用结构方程模型进行验证。[结果/结论]研究发现：感知威胁、反应效能、控制倾向和描述性规范对智能手机用户的信息安全行为意愿具有显著的正向影响,自我效能对行为意愿的影响不显著;作为社会环境的因素之一,描述性规范对感知威胁、反应效能、自我效能和控制倾向均有显著的影响。 相似文献
5.
[目的/意义] 探讨影响政务微信用户持续使用行为的关键因素及作用机制,以期为我国政务微信服务优化提供理论依据和实践支持。[方法/过程] 借鉴刺激-机体-反应模型,将技术因素和社会因素作为刺激,用户契合作为调节变量,构建政务微信用户持续使用行为模型。利用偏最小二乘法对问卷数据进行分析,对模型进行验证。[结果/结论] 移动性正向影响有用性感知和易用性感知;服务质量正向影响有用性感知,对易用性感知没有显著影响;主观规范和信任两个社会因素均正向影响有用性感知和易用性感知;有用性感知和易用性感知作为机体正向影响持续使用行为,用户契合对易用性感知与持续使用行为之间的影响关系具有负向调节作用。鉴于此,本文进行了广泛探讨并给出了对政务微信服务实践的启示。 相似文献
6.
本文基于技术接受模型和计划行为理论,以武汉市部分高校学生为研究对象,建立了高校学生对移动图书馆使用意向的影响因素模型。运用问卷调查方法对高校学生移动图书馆使用意向进行了实证研究。通过SPSS软件和AMOS软件对提出的模型加以验证。得出感知有用性、感知易用性、外部影响、人际影响、自我效能、便利条件、态度、主观规范和感知行为控制是高校学生使用移动图书馆的主要影响因素。 相似文献
7.
8.
[目的/意义]文章旨在探究移动社交媒体用户持续使用行为的影响因素及其相互关系,为移动社交媒体运营商提高用户满意度和忠诚度,增强用户黏性,洞察用户真正兴趣和心理需求,培养用户习惯等提供决策参考。[方法/过程]本文整合扩展的ECM-ISC模型、自我决定理论及习惯,构建移动社交媒体用户持续使用行为概念模型,提出研究假设并设计调查问卷;针对微信用户进行纸质问卷调查,共回收234份有效问卷,采用偏最小二乘法分析数据,在排除共同方法变异的影响下,对测量模型和结构模型进行评估,并对研究假设和调节效应进行验证。[结果/结论]结果显示,持续使用意愿和习惯直接影响移动社交媒体用户持续使用行为,习惯对持续使用意愿和行为之间有负向的调节作用;使用后感知有用性、满意度及自我功效正向显著影响持续使用意愿;期望确认度对使用后感知有用性和满意度产生直接影响;感知关系性和感知胜任性正向显著影响内在动机,内在动机对满意度正向影响显著,满意度对习惯产生直接影响。根据研究结论,对移动社交媒体（微信）运营商提出管理建议。 相似文献
9.
健康信息与人的生命质量息息相关,研究其在社交网站上的采纳特点和影响因素十分必要。然而关于使用社交网络获取健康知识这一行为的研究仅处于起步阶段,尚缺乏对网络用户基于社交网站采纳健康信息行为的深入认识和探讨。结合社会认知理论和现有的健康信息系统研究,选取若干具有代表性的因子建立结构方程模型,以了解国内网络用户基于社交网站采纳健康信息的行为特点和影响因素。通过探索性因子分析和验证性因子分析,实证结果证实了用户健康自我效能、健康关注、感知风险和感知信息支持显著影响了用户对SNS健康信息的采纳意向;同时感知信息支持、感知情感支持、健康关注及感知风险显著影响了用户的健康自我效能;感知风险受到用户信任倾向的显著影响。为今后针对社交网络获取健康知识的研究提供了理论模型上的借鉴,为采取针对性的干预措施提供科学合理的参考。 相似文献
10.
信息伦理对G2C电子政务系统用户接受行为的影响研究 总被引：1，自引：0，他引：1
随着我国电子政务的不断发展,G2C电子政务受到了越来越多的关注,用户对电子政务的接受程度影响着电子政务的应用水平.从信息伦理角度出发,分析用户行为对系统的有用感知、易用感知、行为控制感知和信任感知,研究用户对G2C电子政务系统的使用意愿及接受行为.通过扩展的技术接受模型,分析影响用户接受行为的信息伦理因素,并结合各因素的影响作用对我国G2C电子政务的建设提出建议. 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.
《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
15.
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
16.
《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
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
19.
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.
《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