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1.
《情报杂志》自引分析 总被引：6，自引：0，他引：6
通过对《情报杂志》1995～2004年的自引情况进行统计，对《情报杂志》语种自引、著者自引、机构自引、学科自引和期刊自引进行了分析研究。 相似文献
2.
《情报学报》的自引分析与研究 总被引：2，自引：0，他引：2
本文统计了《情报学报》自1982年创刊以来发表论文的自引情况，从文献自引的角度，对著者自引、期刊自引、学科自引、时间自引等数据进行了分析。从中探寻《情报学报》的办刊特色及情报学研究的发展轨迹，并试图为情报学研究人员在正确处理自引引文时提供某一角度的参考。 相似文献
3.
利用中文社会科学引文索引(CSSCI)数据,对1998-2007年《情报科学》刊载论文的被引数据进行统计分析,包括被引频次分析、即年指数、影响因子、h指数、g指数和经典文献。结果表明,《情报科学》已经具备了较高的学术影响力。 相似文献
4.
从论文被引频次分布、被引期刊分布、高频被引论文分布和基金论文被引分布四个方面．对《情报科学》（1981～2007）发文的被引情况进行了分析。 相似文献
5.
《情报科学》2006-2010年高被引论文分析 总被引：1，自引：0，他引：1
以中国知网《中国学术文献网络出版总库》为统计源,从文献引证的角度分析《情报科学》高被引论文的分布规律。研究结果表明:该数据库共收录《情报科学》2006-2010年原文2039篇,被引文献1377篇,被引率为67.53%,总被引频次为7581,单篇最高被引频次81,较少的论文拥有较高的被引频次,基本符合"二八定律"。并且以被引频次≥21的前50篇论文作为研究对象,对其年代分布、被引频次、下载频次等方面进行了统计分析。 相似文献
6.
三种情报学期刊的发文及其引文比较研究 总被引：3，自引：0，他引：3
以《情报学报》、《情报理论与实践》和《情报杂志》１９９６年全年的论文及其引文为研究对象,统计分析了三种期刊发文的系统分布和地区分布、多产作者及单位、论文作者的合作情况,对三种期刊引文的类型、语种、年代、自引和互引等也作了统计分析和比较研究。 相似文献
7.
以万方数据库数据为依据,运用对比分析法,对《中文核心期刊目录总览》中图书情报类19种核心期刊的来源文献量、即年指标、总被引频次、影响因子、学科扩散指标等8个指标值进行排名和分析,以了解《情报科学》近年各指标状况。建议通过提高稿件学术质量,进一步提高影响因子,扩大《情报科学》的学术影响力。 相似文献
8.
《内蒙古科技与经济》2015,(22)
对2005年~2014年《中国图书馆学报》的载文量、分布学科、基金分析、作者机构、下载量、被引频次、引文等情况进行了统计和定量分析,并与大学图书馆学报、图书馆建设、图书情报工作、图书馆论坛、图书馆杂志、图书情报知识、情报理论与实践、情报科学、情报杂志等期刊进行了对比分析。结果表明:《中国图书馆学报》的基金论文率、下载量、被引频次、引文等皆处于图书情报类期刊的领先地位。 相似文献
9.
基于h指数和hm指数的《情报科学》核心作者分析 总被引：1，自引：0，他引：1
通过CNKI中国知网对2001-2009年《情报科学》作者发文量和被引频次进行统计,利用普莱斯定律、h指数和hm指数测定了《情报科学》的核心作者,并就其年龄、技术职称、所处的地域加以评析。通过对核心作者的分析,可以了解情报学发展的动态。 相似文献
10.
对六种图书情报编辑专业期刊的引文分析 总被引：5，自引：2，他引：5
为了解图书、情报、编辑类期刊的引文引用规律，采用引文计量分析法对《中国科技期刊研究》、《图书情报知识》、《编辑学报》、《编辑之友》、《情报杂志》、《情报学报》六种期刊2003年刊载的1623篇论文所引用的参考文献逐篇进行了统计。并对各类期刊引文特点从引文数量、引文类型、引文语种、引文年代、普赖斯指数、自引率等几个方面进行了比较分析。 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.
《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
18.
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
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