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[目的/意义] 为明晰公益众筹平台用户体验的影响因素,基于社会资本理论以及公益慈善的相关研究,探求公益众筹平台的技术特征、运营水平和社会网络以用户维度的因素为中介,对于公益众筹平台用户体验的影响。[方法/过程] 以有公益众筹平台使用经验的用户为调查对象,收到有效问卷363份,运用WarpPLS软件对获得的数据开展结构方程模型分析。[结果/结论] 研究发现,同理心、感知信任和互惠规范对公益众筹平台用户体验有正向影响;技术特征对于同理心影响不显著,但显著影响感知信任;运营水平显著影响同理心和感知信任,但对互惠规范未有显著影响;社会网络显著影响同理心,但对感知信任和互惠规范未有显著影响。根据研究结果,从理论、实践层面展开讨论,并对未来研究进行展望。 相似文献
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以SNS社交网络个人用户持续使用行为为研究对象,以信息系统持续使用理论为参考框架,整合计划行为理论,针对SNS的特点引入感知娱乐、感知信任及习惯,建立研究模型进行实证研究。研究结果表明:信息系统持续使用理论在SNS情境下有良好的适用性;主观规范和感知行为控制对用户的使用意向和实际使用行为影响显著;感知娱乐对满意度和持续使用意向影响显著;习惯对实际使用行为的影响及对持续使用意向和行为之间的调节效应显著。 相似文献
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基于期望确认理论与技术接受模型,结合共享单车自身特点,构建了共享单车用户持续使用意愿影响因素模型。依据共享单车用户持续使用意愿的问卷调查数据,以结构方程为研究方法,使用Amos 21.0软件进行分析,实证研究了用户持续使用意愿的影响因素。研究结果证实:用户易用性正向影响用户有用性;体验价值对信任有显著的正向影响;用户的感知有用性和体验价值对用户满意度有显著的正向影响;用户满意度、感知有用性和信任均对持续使用意愿有正向影响,且从各因素的影响程度来看,用户满意度大于感知有用性和信任影响的程度。 相似文献
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[研究目的]将网络健康信息可信性的研究聚焦于健康数据层面，建构健康数据技术信任与网络用户感知信任过程，分析健康数据时间、空间及内容三维架构在支撑网络健康信息可信性的作用价值及方式，并将健康数据与网络用户作为整体信任进行分析。为后续健康数据溯源、数据空间及数据关联等技术应用于健康信息可信保障提供引导。健康数据三维架构的各维度表征要素也可能是提升健康信息可信性的一种新思路。[研究方法]以信息链、信任理论、理性行动理论等为基础，建构健康数据技术信任和用户感知信任过程，在对可信要素分析基础上，提出支撑网络健康信息可信的健康数据三维架构。在诠释与剖析健康数据时间、空间及内容三维架构作用方式、价值及各维度表征要素后，将网络用户与健康数据作为整体信任进行网络健康信息可信模型的建构。[研究结论]网络健康信息可信模型分别由网络用户感知层信任、健康数据技术层信任、健康数据三维架构作用及保障模块组成；健康数据技术层信任通过健康数据三维架构作用，通过影响健康信息感知质量、健康信息来源及可读性对用户感知可信产生影响；网络健康信息可信的健康数据三维架构中的24个表征要素能够为相关网站健康信息可信性保障方案的制定提... 相似文献
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制度信任对农民参与环境治理决策意愿影响研究 总被引：1，自引：0，他引：1
《软科学》2019,(7):111-115
将环境风险感知和制度信任引入计划行为理论框架,构建农民参与环境治理决策意愿的扩展计划行为理论模型,以四川长宁-威远国家级页岩气示范区周边农民为样本对象,对环境风险感知、制度信任、行为态度、主观规范、知觉行为控制与参与意愿的影响关系进行了实证分析。研究发现:环境风险感知、行为态度、主观规范、知觉行为控制对参与意愿存在显著正向影响关系;行为态度在环境风险感知与参与意愿之间存在中介作用;制度信任不仅正向调节行为态度与参与意愿之间的关系,还增强了行为态度的中介效应,存在有调节的中介效应。 相似文献
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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
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[目的/意义]本文以用户行为感知视角，研究影响移动社交网络主导型用户与浏览型用户持续使用的因素，为移动社交网络信息服务提供理论基础，并为移动社交网络提供商提出参考与应用借鉴。[方法/过程]分析移动社交网络主导型用户与浏览型用户持续使用意愿影响因素，引入相关变量，构建了基于用户行为感知的移动社交网络信息服务持续使用意愿模型并提出假设，最后通过结构方程模型进行实证分析。[结果/结论]感知有用性、感知易用性、感知娱乐、感知质量等因素均显著影响主导型及浏览型两类用户；服务质量、感知风险、知识获取、个人创新、社会认可、感知信任、感知转换成本等因素对两类用户有不同程度的影响。 相似文献
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[目的/意义]用户利用在线医评信息是网络医疗服务的关键环节，探索医评信息特征如何影响用户采纳行为有助于促进在线医疗平台的优化和服务发展。[方法/过程]基于ELM模型和信任转移理论，采用2*2*2的组间实验设计方法开展情景决策实验，收集有效问卷539份，并利用Smart PLS开展直接效应、中介效应和调节效应分析。[结果/结论]事实型(vs抽象型)评论和真实姓*(vs昵称)的评论人标识可以提升感知内容客观性和具体评论人可信度，并进一步提升用户对评论的有用性感知和后续采纳意愿。对网站的信任可以通过一般评论人群体信任向具体评论人信任进行转移。用户性别特征和疾病严重程度特征分别负向和正向调节评论特征对用户认知及后续采纳的影响。研究提出的措施可以帮助在线医疗平台优化设计以促进用户对医评信息的采纳利用。 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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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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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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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
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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
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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)》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