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论文来源信息标注常见问题的分析与对策——以中国科学引文数据库为例 总被引：2，自引：0，他引：2
田乃庆 《中国科技期刊研究》2004,15(4):416-418
本文通过对中国科学引文数据库2001～2002年收录期刊中著者地址、基金项目、页码中出现的论文来源信息标注问题，从引文数据库加工、规范、检索及文献计量学指标统计的角度进行分析探讨，并提出改进建议。 相似文献
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基于PubMed数据库的MEDLINE收录国内期刊论文认定方法研究 总被引：1，自引：0，他引：1
分析使用PubMed数据库进行MEDLINE收录国内期刊论文认定工作中出现的情况,并进行期刊及论文收录标识的解读,论文收录信息的对比、分析,确定MEDLINE收录的确切标识和认定标准。 相似文献
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网络环境下信息资源研究的统计分析 总被引：5，自引：0，他引：5
本文通过对中国期刊全文数据库检索统计分析 ,以文献计量学的基本定律作为数据分析的基本方法 ,对 1999— 2 0 0 3年网络信息资源的研究论文进行统计 ,分别对期刊年代、期刊分布、主题特征、核心作者及著者地域分布、基金项目进行对比分析和综合分析。旨为网络环境下信息资源的可持续发展研究提供参考 相似文献
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【目的】分析国际上主要的生物医学数据库收录中国生物医学期刊的现状和收录要点,旨在为国内其他医学期刊申请国际数据库收录及提升期刊国际影响力提供参考。【方法】统计并分析国际数据库(Scopus、Embase、DOAJ、MEDLINE、PMC和WoS等)收录中国医学类科技期刊的现状,深入分析收录要点,以《中国癌症杂志》申请国际数据库收录的具体工作为例,总结申请国际数据库存在的问题,并提出解决方案。【结果】各数据库收录中国生物医学期刊的情况各不相同,总体上,收录中国期刊数量有限。近年来,Scopus、DOAJ和PMC数据库发展较快,中、英文期刊均有收录;SCIE主要收录英文期刊,ESCI已加快中文期刊的收录工作,MEDLINE和PMC的收录标准则越来越高。提高期刊的内容质量是期刊的重要工作。此外,期刊应加强中英双语网站建设,建立并落实各项制度,提倡期刊采取论文英文长摘要的写作策略,进而提高期刊的展示度。【结论】近年来,中国生物医学期刊被国际数据库收录数量整体上持续增长,但仍有待提升。中国生物医学期刊被国际数据库收录不仅有助于促进期刊的制度建设及国际一流期刊的网站建设,还有助于提升期刊的内容质量... 相似文献
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SSCI收录我国社科期刊文献计量学指标的国际对比研究 总被引：2，自引：2，他引：0
方红玲 《中国科技期刊研究》2015,26(1):93-97
[目的]了解SSCI收录的我国社科期刊主要文献计量学指标整体水平和国际排名.[方法]把我国(不合台湾省6种SSCI期刊)与G7国家(美国、英国、法国、德国、意大利、加拿大、日本)和新兴国家(韩国、印度和俄罗斯)SSCI收录社科期刊的主要文献计量学指标进行对比.[结果]2013年SSCI收录的我国社科期刊数(13种)和年均发表论文数都较少,但影响因子和5年影响因子位居11个国家中第5位,即年指标位居第4位,引用半衰期长,只短于法国和俄罗斯.2013年SSCI收录的我国社科期刊的自引率相比其他国家较高,而特征因子和论文影响分值较低.[结论]今后SSCI收录的我国社科期刊应增加期刊年均发表论文数、控制期刊自引、缩短引用半衰期等,不断提高期刊国际影响力,而尚未被SSCI收录社科期刊也可从以上方面努力. 相似文献
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[目的]为中国学术期刊在未来开放获取实践中处理版权问题提供参考借鉴.[方法]采用网络文献调研法调研总结国际实践中作者版权保留的主要类型,利用利益相关者理论识别作者版权保留的利益相关主体,分析主体之间的利益关系及主要冲突.[结果]尝试探索国际实践中利益冲突的解决方案,提出作者增强版权认知,资助机构、科研机构主动参与博弈,建立科学的评价体系与激励机制,发展新型学术交流模式,调整版权利益分配格局等方法来协调冲突、平衡利益.[结论]期刊出版机构的数字化转型是大势所趋,中国学术期刊应及时变革出版社与数据库商主体分立的状况并形成统合的出版主体,同时更加重视版权政策的制定完善及版权协议的规范化. 相似文献
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Web of Science收录中国相关期刊及分析 总被引：4，自引：2，他引：4
通过对ISI网站和JCR中期刊数据的分析和归纳，总结出Webof Science收录中国相关期刊108种。通过聚类分析、区域分析和其他相关度的分析，为科研工作者了解国外著名数据库收录的期刊提供导引，为读者和用户向SCI等数据库收录的期刊投稿提供便利，为我国的学术期刊早日走向世界提供信息参考。 相似文献
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ISI数据库——学术期刊及网站的选择 总被引：6，自引：3，他引：3
James Testa 《中国科技期刊研究》2000,11(6):349-352
ISI（美国科学信息研究所）的基本任务是向其用户提供所需要的世界最重要、最有影响的期刊收录信息,ISI数据库不仅可以检索当年而且可追溯以往。现有数据库收录自然科学、社会科学、艺术与人文科学的国际期刊8500余种。ISI能完整地检索它所收录的任何一条文献数据。期刊的评估与选择是动态过程,每年ISI数据库的来源期刊都会有所增加或删减。每种期刊在被录用或被淘汰前都经过内容广泛的评估过程。ISI数据库期刊评估要考虑多种因素,评估范围从质到量标准不同,包括基本出版标准、学术内容、作者的国际化程度,及其与之相关的引文 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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《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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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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《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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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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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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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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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