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1.
【目的】 探讨神经病学核心期刊零被引率与期刊评价指标的相关性。【方法】 统计19种神经病学核心期刊2012年的零被引率,并与复合影响因子、复合即年指标、引用半衰期、被引半衰期、基金论文比、学科扩散指标、学科影响指标进行相关性分析。【结果】 直线相关分析的结果显示,零被引率与引用半衰期呈正相关,与基金论文比、学科扩散指标呈负相关,而复合影响因子、复合即年指标、复合5年影响因子、复合他引影响因子、被引半衰期、学科影响指标与零被引率无相关性。【结论】 零被引率与引用半衰期、基金论文比、学科扩散指标相关,可通过提高期刊学术质量和影响力、论文的创新性及学术性来降低零被引论文数量。 相似文献
2.
【目的】研究医学学报类期刊零被引论文的特点,提高稿件处理效率。【方法】 选择北大核心收录的6种代表性医学学报类期刊,在CNKI中检索各刊2010年发表的零被引论文及其下载频次,结合下载频次的高低分析6种期刊零被引论文的文章类型、内容、研究方向和基金资助情况。【结果】 该类期刊的零被引论文率不一,与期刊质量有一定关系。零被引论文类型以基础研究类占比最高,病例报告占比较高且篇均下载频次最低;论文内容中,技术方法类占比不小,但下载频次高于非技术方法类;不同研究方向的论文下载特点存在差异;零被引论文中基金论文占比不小。【结论】 掌握医学学报类期刊零被引论文的规律,对减少发表零被引论文,提升期刊影响力提供了另一条途径。 相似文献
3.
【目的】 了解综合性农业科学类中文核心期刊零被引论文特征,探讨该类期刊在提高影响力方面的措施。【方法】 收集《中文核心期刊要目总览》中13种综合性农业科学类期刊在2011年发表的零被引论文,对其作者数量、第一作者所属机构、第一作者职称、第一作者学历、基金资助情况以及论文下载频次、篇幅、类型及学科分布等进行统计分析。【结果】 各刊零被引论文数量与其发文量相关性不大,零被引率与期刊的影响因子呈负相关。高等院校的零被引论文占比最大;零被引论文随完成论文合作机构数量的减少而增加。基金资助论文的零被引率高于非基金资助论文;资助项目少的论文零被引率低于资助项目多的论文。篇幅短的文章或不系统的研究性论文较少被引用。摘要信息量存在一定程度的不完善。综述型论文零被引率小于研究型论文。【结论】 各刊发文量与零被引论文量间的关系视具体情况而定。针对零被引论文占比较大的稿件,即高等院校及任务类稿件,应在论文发表前的各环节进行协同控制。要加强及重视摘要信息的规范编辑。对来稿字数应作要求。编辑要及时掌握研究领域动向,加强与资深专家及学科带头人间的沟通,积极约稿。尽早发表并提高论文的显示度,进而减少零被引或低被引文献的产量。 相似文献
4.
郭亿华 《中国科技期刊研究》2016,27(10):1094-1099
【目的】通过分析国内地理学中文核心期刊的零被引论文特征,为地理学科技期刊选题策划、稿源筛选、提高影响力提供参考。【方法】以4次入选《中文核心期刊要目总览》的16家地理学期刊作为研究对象,分析其2009—2010年零被引论文的期刊分布、作者、基金资助、页数、摘要、学科和类型等的特征。【结果】所统计期刊论文零被引率较低,仅为1.79%;作者中学生占比较大,以博士为主,高等院校占比大于研究所;基金资助论文占比大于无基金资助;论文页数大部分<6页;摘要信息存在不同程度的缺失;学科分布上以天文学、地球科学、经济学、农业科学等为主。【结论】减少或者避免零被引论文需要期刊主办者、科研工作者、科研评价机构等的参与。 相似文献
5.
零被引论文产生的原因分析——以《植物营养与肥料学报》为例 总被引：3，自引：3，他引：0
徐晓芹 《中国科技期刊研究》2015,26(7):763-768
摘 要 【目的】通过综合定量分析同行评审专家对零被引论文学术价值和学术质量的评审意见,阐明科技论文发生零被引的内在原因。【方法】利用CNKI学术文献总库提取了《植物营养与肥料学报》1994—2012年发表的零被引论文,统计分析了零被引论文与论文第一作者类型的关系,利用保存的2008—2012年期间的同行专家审稿意见,对零被引论文的学术价值和学术质量评价指标进行了归纳总结和定量分析。【结果】 不同类型作者对零被引论文贡献大小为研究生（47％）>副高（23％）>初中级（17％）>正高（13％）;44%的同行评审专家认为,零被引论文涉及的科学问题属于国内领先,但超过90%的专家认为零被引论文的试验设计、研究方法和结果分析存在严重缺陷。【结论】严重的稿件质量问题与零被引论文产生密切相关,减少科技期刊论文的零被引率,需要“作者-审稿专家-编辑协同控制”。 相似文献
6.
中国知网收录的国家自然科学基金论文的被引情况分析 总被引：1，自引：1，他引：0
董建军 《中国科技期刊研究》2012,23(5):776-778
本文统计分析了2001年至2010年中国知网学术期刊网络出版总库所收录的国家自然科学基金论文的被引分布情况和历年零被引率的波动情况。研究发现国家自然科学基金论文的被引分布呈现高被引和低被引的双峰分布。国家自然科学基金论文发表后的前4年为其零被引转化成非零被引的关键时段。2010年发表的国家自然科学基金论文两年后的零被引率达到了52%,数据库中2010年发表的该类论文中有51461篇论文截至2012年2月未获得引用。因此我们认为科技期刊编辑工作者应严把国家自然科学论文的监督和审查,使其真正实至名归;由于受到基金论文被引双峰分布和高零被引率的影响期刊评价指标基金论文比与期刊的影响因子相关性不大;同时国家自然科学基金论文的零被引变化规律也提示2年影响因子评价期刊存在局限性。 相似文献
7.
PLoS ONE发表的中国论文学术影响力分析 总被引：3，自引：2，他引：1
PLo S ONE近年来在我国炙手可热,为了解该刊发表论文特别是中国论文的学术影响力,基于Web of Science数据库选取该刊发文数据为研究对象,分别对国家或地区分布、被引频次、高被引、零被引论文进行文献计量分析,全面分析该刊发表的中国论文在全球所处地位。结果表明,PLo S ONE自2010年成为SCI源期刊后,发表中国论文数量迅速增加,且多是高水平研究机构和国家级基金资助的研究论文,但其学术影响力整体表现为篇均被引低、高被引论文少、零被引率高。大量新发表的论文受时间因素影响受关注程度较低,以及论文本身学术水平可能是影响我国论文整体学术影响力的因素。 相似文献
8.
【目的】分析普通高校学报零被引论文产生的原因,为提升普通高校学报办刊质量和学术影响力提出对策建议。【方法】 采用文献计量方法,从作者群特征、学科分布、基金项目情况等对《天津职业技术师范大学学报》发表年限为6～10年的零被引论文进行统计与分析。【结果】作者群方面,零被引论文作者呈现年轻化、学术影响力偏低等特征;学科分布方面,零被引论文多来自非优势学科;项目资助方面,零被引论文获得的项目资助较少且层次较低。【结论】来稿质量难以保证、传播形式单一以及引用偏好和规范等问题,都导致普通高校学报零被引现象的产生。因此,应当通过丰富和优化稿件来源、提升稿件规范性、开辟多元化宣传推广途径、加强软硬件建设等方式,提升普通高校学报的综合实力和学术影响力,推动其良性发展。 相似文献
9.
预防医学类期刊引证指标与零被引论文率的相关性 总被引：2，自引：2，他引：0
通过查阅《中国学术期刊影响因子年报（自然科学与工程技术）》及中国知网,对31种预防医学类期刊的引证指标及其与零被引论文率的相关性进行分析。结果显示,期刊零被引率平均为49.16%;复合影响因子为0.451（0.070~1.354）,复合即年指标为0.060（0.006~0.507）,引用半衰期为5.7（3.3~7.4）,被引半衰期为4.8（3.4~7.6）,引用期刊数为492（145~1332）,被引期刊数为490（106~1256）,他引总引比为0.84（0.41~1.00）,互引指数为1.17%（0.08~3.58）%。期刊复合影响因子、复合即年指标、被引期刊数和零被引论文率均呈负相关（r值分别为-0.708,-0.382,-0.430,P值均<0.05）, 引用半衰期和零被引率呈正相关（r=0.578,P<0.05）;而被引半衰期、引用期刊数、他引总引比、互引指数与零被引论文率相关均无统计学意义（r值分别为0.254,-0.149,0.341,-0.167,P值均>0.05）。 相似文献
10.
科技期刊论文低被引情况与探讨 总被引：1，自引：1，他引：0
【目的】从低被引论文所占比例及分布情况出发考察期刊学术质量,呼吁编辑同行做引文分析时可适当关注低被引论文情况,以期全方位认识刊物存在的问题。【方法】 选取零被引率、一次被引率、一次被引率减零被引率、二次被引率减一次被引率4种指标,定量考察光电类期刊、电子通信类期刊、工程技术综合类高校学报的载文低被引情况,同时将其和主流正向指标进行比较,发现二者排名并非一致。【结果】 我国科技期刊普遍存在低被引论文所占比例高的现象,收稿范围越大类别的期刊问题越突出,且反向考察期刊论文低被引情况能对正向指标表征的期刊评价信息予以补充。【结论】科技期刊编辑可从低被引论文所占比例、指标历年变化趋势、被引次数分布等几方面对期刊现状予以关注。 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.
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
17.
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
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