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1.
匡登辉 《中国科技期刊研究》2018,29(5):503-508
【目的】 考察顶级期刊的影响力,总结顶级期刊高网络参与度论文的特征,为我国科技期刊评价和科学传播提供借鉴。【方法】 以Nature 2016年高网络参与度论文为分析对象,选取Scopus、Altmetric.com进行文献被引频次及Altmetrics指标采集,对高网络参与度论文作者、学科、收录引用文献类型、Nature的IF和CiteScore、Altmetrics指标的覆盖率进行统计分析。【结果】 Nature高网络参与度论文的合著率达52%;各学科分布相对均衡,人文社会科学成果占19%;Scopus对Nature的论文选择性收录,仅从本研究来看,News的收录仅占28.97%;Nature同年度CiteScore比IF数值低;Blog、Facebook、Tweeter、Google+、Reddit、Mendeley、news story覆盖率较高,可用于探讨顶级科研成果在网络上的关注程度及其传播规律。【结论】 Nature与国际在线发布平台合作服务的新型出版模式在一定程度上成就了高网络参与度论文。 相似文献
2.
匡登辉 《中国科技期刊研究》2016,27(11):1188-1194
【目的】为提高我国科技期刊的影响力,考察Altmetrics热点论文相关期刊的学术影响力和社会影响力。【方法】通过Altmetric.com网站或Figshare平台获取2015年的Top 100论文的Altmetrics指标,利用MS Excel对论文的期刊分布、学科分布、作者群分布及网络传播数据进行描述性统计分析。【结果】我国科技期刊的国际显示度不高,在Top 100中仅1种期刊（仅占3.33%）来自于中国;我国期刊网站目前不支持主流社交媒体的全面接入。【结论】高水平期刊论文的高Altmetrics表现,与其高品质的期刊影响力,在一定程度上是一致的,但是Altmetrics表征的是社会影响力及社会关注度,评价期刊影响力,应将Altmetrics与传统的学术影响力评价结合起来。 相似文献
3.
【目的/意义】综合国内外对 Altmetrics研究的相关论文,介绍了 Altmetrics的定义、产生和发展过程,指出
Altmetrics与传统计量学的联系与区别,着重分析了 Altmetrics服务提供平台、Altmetrics计量指标及工具应用研究现
状。【方法/过程】针对目前国内外学者关于 Altmetrics指标研究的疑问,以 PLOS ONE为例选取图书情报领域论文
进行浏览量与被引量的相关性分析。【结果/结论】得出了 PLOS ONE相应计量指标能够有效指示高被引文献的结
论。证明了 Altmetrics能够有效体现文献学术影响力以及社会影响力。最后正对 Altmetrics研究现状进行了表达了
自己的见解,指出后续可能的研究方向和待解决的问题。 相似文献
4.
【目的/意义】大科学时代,开放获取在学术交流中承担着重要角色,对学术知识传播和创新起到推动作用,
加快开放科学与学术成果的社会化进程,分析开放获取论文影响力扩散,有利于开放获取论文影响力的细粒度评
价。【方法/过程】本文从开放获取论文交流传播视角,通过开放获取论文知识网络、产出水平以及Altmetrics活跃度
对中美图情领域开放获取论文影响力扩散进行分析。【结果/结论】研究发现中美图情领域开放获取论文在交流传
播过程呈现的知识网络、产出水平及Altmetrics活跃度方面存在差异性。【创新/局限】本文从学术交流角度出发,通
过论文发表后的使用情况及产出水平揭示中美图情领域开放获取论文影响力的扩散,在未来的研究中还需进行影
响力扩散细粒度分析,对影响力扩散呈现的知识单元进行全面深入探索。 相似文献
5.
【目的】分析四种网络数据源在期刊影响力评价方面的异同,为期刊综合评价提供理论指导。【方法】 以2014年JCR、Pubmed数据库均收录的影响因子排名前50的开放存取期刊为研究对象,通过相关分析、因子分析提取各数据源平台在期刊评价中的主要影响因子,作为期刊评价中重点考察的代表性数据指标。【结果】 JCR的期刊影响力主要来源于被引频次、可引用项目;Google scholar扩大了期刊信息的传播范围;Altmetrics.com注重网络传播指标、获取指标和利用指标,其主要影响因素来源于网络传播指标。【结论】 JCR反映的是期刊在学界的影响力;Google scholar前置了期刊评价;应用搜索引擎获取期刊网站的链接数、IP访问量、PV浏览量等描述了期刊传播阶段的影响力。Altmetric.com将期刊评价延伸到传播、获取和利用的全过程。 相似文献
6.
【目的】 研究z指数在期刊评价中的效果。【方法】 以SSCI收录的信息科学和图书馆学期刊为例,计算分析了目标数据的总发文数量、总被引频次、篇均被引频次、一致性指标η、h 指数、p指数和z指数,实证研究了z指数应用于期刊影响力的评价效果。【结果】 z指数相较于h指数以及p指数更加适合于综合评估期刊学术影响力的质量因素、数量因素和被引分布情况。【结论】 利用z指数评价期刊有助于激励期刊发表高水平论文,z指数具有较好的灵敏性和区分度。但z指数在期刊学术影响力评价中存在不能区分施引文献影响力大小等缺陷。 相似文献
7.
通过对PLoS办刊理念的介绍,及PLoS Biology在编委组成、栏目设置、载文量、影响因子、论文发表时滞、以及参考文献量和引文数量、引用半衰期等的分析,力图发现PLoS Biology如何在短短5年多的时间里成为世界生物学领域最优秀期刊之一的原因; 同时,针对《中国科学·C辑: 生命科学》的现状,试图找出其存在的主要问题,及其与PLoS Biology的差距,提出《中国科学·C辑: 生命科学》如何加快国际化的几点初步建议, 以期对国内生命科学领域的期刊发展和国 相似文献
8.
【目的】深入了解埃博拉事件中科技期刊所承担的社会责任。【方法】 对中国知网(CNKI)上发表的所有篇名中含有埃博拉的论文进行统计分析,来源数据库为"中国学术期刊网络出版总库",检索结果使用Microsoft Office 2007 Excel进行整理和统计。检索截止时间为2015年7月15日。【结果】 自1995年至今20年间,共有150种科技期刊发表了579篇有关埃博拉的论文,其中以2014年发表的论文数量最多(259篇),占总发文量的44.7%。发文量与疫情暴发的年份基本吻合。【结论】 从分析结果可见,作为承载着科学传播任务的科技期刊,对此次埃博拉事件高度关注,从多方面、多角度进行了深层次的报道。 相似文献
9.
王新 《中国科技期刊研究》2017,28(7):647-657
【目的】 分析基础学科期刊论文被引的分布特点,探究低被引论文区间的界定和评价方法。【方法】 以科学引文索引(WoS)收录的65种凝聚态物理学期刊(CMJ)的被引数据为研究对象,以统计学原理和文献计量学方法,比较分析h指数核心区、被引频次小于篇均被引次数论文,以及最低被引论文的累计被引频次为期刊总被引频次的5%,10%和20%区域内论文的被引特性,以此确定CMJ最合理的低被引区。【结果】 CMJ整体零被引率仅为10%,可视为高质量的期刊集合。最低被引论文的累计被引达到总被引频次20%的区域和被引小于篇均被引次数的区域具有被界定为低被引区的统计学依据。零被引率、低被引率和低被引密度与传统评价指标IF、h指数、篇均被引次数以及可被引论文数、总被引频次不存在强相关性,满足作为独立评价指标的充分条件。【结论】 由零被引率、低被引率和低被引密度构成复合指标Evel {rN0,rN x,rTci x}用于描述期刊的低被引特性;由h指数和特定区域内的篇均被引次数构成另一个复合指标Evel {h,Ci 20%,Ci cipp,Ci h}用于比较期刊的被引结构特征。研究表明期刊被引结构可以构形分类,而评价参数在不同被引区域有可能存在竞争优势;因此评价期刊的低被引情况要以分析被引结构为前提。期刊的综合评价应该使用多参数多维度指标。 相似文献
10.
王凤产 《中国科技期刊研究》2018,29(3):242-247
【目的】 为我国科技期刊实施开放性同行评议(Open Peer Review,OPR)提供参考,以促进我国科技期刊在同行评议中增加开放性,进一步符合科学开放性精神。【方法】 对PLoS One、Atmospheric Chemistry and Physics、 F1000Research、The Semantic Web Journal和《心理学报》的开放性同行评议过程进行调查研究。【结果】 5种期刊表现出许多相同的OPR特征,但都没有以相同的方式实施OPR,体现了OPR实践过程的多样性特征。【结论】 我国科技期刊应根据实际情况,灵活有效地将开放获取及OPR的优势与传统同行评议优势相结合,优化OPR实施流程。 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.
《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
13.
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
14.
《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
15.
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
16.
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
17.
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
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