共查询到20条相似文献，搜索用时 62 毫秒
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近十年来我国情报学基础理论研究现状分析 总被引：2，自引：0，他引：2
对1995-2004年10年间国内发表的有关情报学基础理论研究的60多篇论文按情报学基本概念、情报学研究对象、情报学研究内容、情报学学科定位、基本情报学研究方法、情报观、情报学学科建设共七个主题进行了分析。 相似文献
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【目的/意义】梳理情报学的研究内容分布以及研究主题发展情况。【方法/过程】选取2006年到2015年十年
内发表于九种情报学核心刊物的论文作为研究数据源,采用构建基于LDA算法的主题模型的方法挖掘情报学的研
究主题。【结果/结论】2006年到2015年情报学的研究主题有13个,其中在内容分布上,总体研究热度较高的是图书
馆管理、文献计量、知识管理与服务、信息素养和情报学基础理论。在主题变化上,研究热度上升的主题有文献计
量、社会网络分析、信息行为研究和数据挖掘;研究热度下降的主题有信息素养、情报学基础理论、信息检索和企业
竞争情报。 相似文献
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高校图书馆信息服务社会化研究情况 总被引：1，自引：1，他引：0
马丽 《内蒙古科技与经济》2010,(18):141-142
文章统计了近10年图书馆学情报学关于高校图书馆信息服务社会化的载文,分析了其总发文量、年均发文量、论文的合作度、主题研究等情况,为我国高校图书馆信息服务社会化研究提供了参考。 相似文献
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运用文献计量学的词频分析方法,利用SPSS软件,对CNKI数据库中2009—2013年情报学硕博学位论文关键词进行统计分析,揭示5年来情报学硕博学位论文的研究热点及变化趋势。结果显示,情报学硕博学位论文研究方法和主题呈现多样化,在对传统研究主题如竞争情报、信息检索和文献计量学等持续关注的同时,对网络信息资源的研究不断增长。 相似文献
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关于情报学方法体系建设的思考 总被引：2，自引：0，他引：2
从情报流程的角度对我国图书情报界的情报学研究方法进行归纳和总结。根据情报研究的实践经验．提出信息搜集、信息整理以及信息分析三阶段的操作特点,认为情报学方法论体系的建设可以与相应的情报研究的操作特点相联系,建立一个相关的情报学方法体系。 相似文献
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【目的/意义】本文通过对近三年国际图书情报学主流研究领域的分析与比较,深入分析了热点主题、高被 引论文和热点论文之间的关联与差异,为探索我国图书情报学领域研究的发展提供参考。【方法/过程】以Web of Science收录的 17种图书情报学领域高影响力外文源刊近三年间所刊载的论文为研究对象,对热点主题、高被引论 文及热点论文等进行了多视角的计量分析和对比研究。【结果/结论】研究发现国际图书情报学领域研究主要呈现 出三个热点主题;领域高被引论文主要体现在四个方面;领域热点论文侧重于信息计量学方面的研究。 相似文献
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以有关情报学为主题的来自Web of Science 数据库的7 078条外文文献和CSSCI数据库的1 009条中文文献为研究对象,利用Cite Space软件对相关引文数据和主题词数据进行分析和处理,以知识图谱的形式整理了国内外历年的研究前沿,同时梳理了国内外情报学研究的重要的知识基础,对国内外情报学研究文献的发文量等进行了对比。本研究得出的结论为:情报学的研究力量主要集中在美国,英国、加拿大、澳大利亚、巴西、中国等亦有突出贡献;中国的情报学研究作为后起之秀,文献突现性是显而易见的;国内外在情报学研究中研究热点很相似,但各具特色,有些研究热点只是存在时间的先后问题,整体来看处于同步发展。 相似文献
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《情报学进展》的信息计量分析--兼论近10年来我国情报学的研究重点与热点 总被引：4，自引：0，他引：4
应用信息计量学方法从选题、著者等方面对《情报学进展》 (I—V卷 )进行分析 ,探讨了近10年来 (1994— 2 0 0 3)情报学领域研究热点与重点问题 ,总结了其中的规律 ,并对今后情报学的发展提出建议。 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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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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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)》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
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《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
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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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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
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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