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1.
影响信息消费的主体因素分析 总被引：4，自引：0，他引：4
在构成信息消费的3个结构要素中,消费主体因素对信息消费的影响是决定性的内生变量。本文分别从个体人口统计特征、信息素质、消费心理3个层面对主体变量因素进行分析,在诸多因素中,年龄、职业、信息能力、消费心理偏好是影响信息消费的主要因素。 相似文献
2.
国内信息消费研究综述 总被引：1，自引：0，他引：1
本文从信息消费研究的起源、信息消费概念、信息消费理论研究、信息消费监督评价及信息消费者权益保护、信息消费影响因素及环境，信息消费实证研究六个角度回顾分析了有关信息消费的研究状况，并对我国目前信息消费研究现状进行了分析。 相似文献
3.
对信息消费生态位研究的相关基本概念进行了说明;分析了信息消费生态位研究的若干问题,包括:信息消费生态位的适宜性评价问题;关于信息消费生态位的"异化"问题;信息消费主体生态位的和谐与协同进化问题;信息消费生态位系统的演化及其平衡研究和信息消费生态位的构建机制研究. 相似文献
4.
食品安全关系着国家的命脉,其中维权意识具有重大的影响力.台湾省的食品安全问题日趋严峻,因此以台湾省民众为研究对象,消费权益驱使心为自变量,消费者正确信息的追求及累积为中介变量,食品安全消费意识为因变量,探讨消费权益驱使心的强弱对食品安全正确信息追求的影响及正确信息的累积对加强食品安全消费意识的影响.通过实证调研发现其影响显着. 相似文献
5.
不确定性是影响用户信息消费效益的重要因素之一.图书馆加强信息基础设施建设,推进信息服务均等化;优化资源配置,开发和利用信息资源的措施,以及规避用户信息消费风险的评估办法,可有效地解决针对不确定性的用户信息消费效益实现问题. 相似文献
6.
随着经济全球化和社会信息化发展,网络信息产品和服务在社会信息消费结构中所占的比重不断上升,信息消费将成为人们未来消费的主要方式之一。文章从信息生态学角度,给出用户信息消费的构成要素和基本特征,研究分析用户信息消费实现过程中来自消费主体、消费客体和消费环境等方面的各种障碍因素,提出提高信息消费质量的一些对策和措施。 相似文献
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中日大学生网络学术信息消费主体的比较研究 总被引：2，自引：0，他引：2
大学生网络学术信息消费主体既区别于一般的网络信息消费主体,又区别于其他的网络学术信息消费主体。随着中国与日本之间学术交流的日益频繁、信息网络的不断发展,越来越多的大学生开始注重利用网络学术信息,并对其进行适当的消费。文章从中日比较的角度,分析两国大学生作为网络学术信息消费主体在各自网络学术信息消费中的体现,及其不同特点与成因。 相似文献
9.
中美高校大学生网络学术信息消费主体的比较研究 总被引：1，自引：0，他引：1
大学生网络学术信息消费主体既区别于一般网络信息消费主体,又区别于其他网络学术信息消费主体。然而目前国内对于这一网络学术信息消费的特殊主体尚缺乏专门探究,更谈不上确立其学术地位。本文在深入探讨其本质内涵的基础上,从中美比较的角度,分析两国大学生作为网络学术信息消费主体的不同特点与成因,及其在各自网络学术信息消费中的体现。 相似文献
10.
[目的/意义]智慧城市背景下，信息消费市场环境发生了巨大的变化。为了让老年人不再被排除在信息时 代之外，可以与年轻人一样享受信息消费的便利与乐趣，对城市退休老人信息消费行为的影响因素进行分析。[方 法/过程]基于信息消费理论，结合菲利普•科特勒模型和卢因模型，从信息消费主体、信息消费客体和信息消费环 境三个维度构建城市退休老年人信息消费意愿的影响因素模型。采用结构方程模型方法对假设进行验证分析。 [结果/结论]信息消费主体、信息消费客体、信息消费环境均对城市退休老年人的信息消费行为产生正向影响，其中 信息消费主体的影响作用最强，其次依次为信息消费客体因素、信息消费环境因素。最后提出了城市退休老人信 息消费能力提升的对策。 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.
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.
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
14.
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
15.
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
16.
《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
17.
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
18.
《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
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