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1.
期刊发展动态指标“增长指数”在期刊评价中的应用 总被引：1，自引：1，他引：0
【目的】采用动态、静态指标相结合的方法对全国农业科技期刊2009—2012年总体发展趋势和发展速度进行定量评价。【方法】 以CNKI《中国学术期刊影响因子年报》(2010—2013年版)为数据来源,选取5个核心定量指标对全国13个类别911种农业科技期刊增长指数的变化幅度、整体水平、地区分布,以及增长指数在农业核心期刊评价中所起的作用等方面进行分析。【结果】综合性农业类单个期刊增长幅度最大,园艺类整体进步期刊最多,正增长最多的农业期刊主要分布地区是北京。2014年遴选的189种中国农业核心期刊中,44个期刊由于增长指数跻身于核心期刊行列。【结论】经过4年的发展,我国农业科技期刊有不同程度的进步,但也有一半以上的期刊发展较为缓慢,甚至逐渐下降。引入表征期刊发展动态指标——增长指数,对全国农业科技期刊进行评价,在目前各大机构评价体系中尚属首次。 相似文献
2.
【目的】 以广东省医药卫生期刊为统计源,建立科技期刊学术影响力综合评价指标体系,为我国科技期刊的综合评价提供参考。【方法】 选取《2017年中国科技期刊引证报告(扩刊版)》中10个文献计量指标,运用因子分析法对广东省医药卫生期刊影响力水平进行综合评价,构建期刊的综合评价函数。选择广东省医药卫生高校学报、外科学期刊验证综合指标,计算期刊的综合评分并且排序,将排序结果与影响因子的排序结果进行对比分析。【结果】 广东省医药卫生期刊影响力主要来源于3个公因子,即影响力总量因子、影响力强度因子和影响力时效性因子,分别在总被引频次、影响因子、被引半衰期上有最大的因子载荷。在权衡这3个因素的基础上,构建期刊影响力综合评价函数。实例验证显示该综合指标体系能够较好地避免影响因子在时间、被引频次等方面的局限性。【结论】 期刊评价需要综合影响力总量、强度和时效性3个因素,既要体现期刊长期和近期的影响力,还要体现其发展变化趋势。期刊发展应当以数量、质量、时效性并重,将期刊办精办好、办强办大,注重传播效能以便学界快速获取和利用。 相似文献
3.
刘莲花 《中国科技期刊研究》2015,26(8):871-874
【目的】对数学类中文核心期刊进行综合评价,以期为数学期刊综合水平的提高提供定量参考。【方法】以2013版中国期刊引证报告(扩刊版)提供的8个计量指标数据为依托,采用基于变异系数法的距离综合评价法对《中文核心期刊要目总览》(北京大学第六版)刊登的15种数学核心期刊进行分析和排名。【结果】距离综合评价法的排名比总被引频次的排名和影响因子的排名更合理。【结论】利用距离综合评价法评价期刊的学术水平是行之有效的,具有科学性和可操作性。 相似文献
4.
【目的】研究中国科技期刊近年发展状况。【方法】 依据2008—2014年版《中国科技期刊引证报告（扩刊版）》数据,研究了中国科技期刊主要计量指标均值的变化,并与前人研究核心期刊2008—2013年主要计量指标均值变化的部分结果进行了对比。【结果】 表明扩刊版刊均海外论文比、总被引频次和机构分布数增幅较大,而影响因子、他引率、作者数和地区分布数总体变化不大。部分指标增长趋势不稳定,如影响因子、海外论文比、即年指标和基金论文比在2010年达到次高后有较大幅度下降。与核心期刊主要均值指标变化相比,影响因子、即年指标两者增速相差不大,而扩刊来源文献量增长速度要远高于核心期刊,中国新增发表的科技论文绝大部分发表在非核心期刊。【结论】 中国科技期刊整体在向前发展,对于海外作者的吸引力也越来越大,但其发展的质量不高。 相似文献
5.
【目的】 对CiteScore和《期刊引证报告》(JCR)期刊评价体系收录期刊的异同进行比较,并分析CiteScore对期刊评价研究与实践的潜在影响。【方法】 对CiteScore 2016版及JCR 2015版收录的期刊进行统计分析,比较两者在期刊收录范围、相互覆盖程度、期刊影响因子计算方法、影响力排名分区的差异,分析中国科技期刊在2个评价体系中的表现。【结果】 CiteScore和JCR所采用的评价期刊影响因子的计算方法类似,对期刊影响力的评价结果总体存在较高的一致性。【结论】 CiteScore和JCR将并存一段时间,并推动完善国际期刊评价方法的研究热潮。 相似文献
6.
我国科技期刊引证指标数据库的对比分析与评价 总被引：1，自引：1，他引：0
【目的】更好地了解我国科技期刊相关引证指标数据库的情况。【方法】对科技期刊引证指标数据库(CSCD-JCR)、《中国科技期刊引证报告(核心版)》(CJCR)、万方数据的期刊统计分析与评价、维普资讯的中文科技期刊评价报告、中国知网的个刊影响力统计分析数据库这5个科技期刊引证指标数据库进行对比分析,详细分析比较了其引证指标组成及用于评价科技期刊的功能。【结果】由于统计数据源不同,各引证指标数据库的引证指标数据差距较大。【结论】用综合评价指标对期刊排名较单一指标排名能更准确反映期刊的学术水平和行业影响力;基于大型数据库的引证指标能更准确、全面地反映期刊被引用和传播情况,但基于源期刊的CSCD-JCR和CJCR引证指标更具有代表性,能更准确反映期刊的学术影响力和学科地位。 相似文献
7.
地学核心期刊新媒体应用情况分析 总被引：2，自引：1，他引：1
【目的】通过分析中国地学核心期刊应用新媒体现状,为推动地学核心期刊新媒体化提供理论支持。【方法】统计对比分析《中国科技期刊引证报告》2012-2013年度地学核心期刊核心影响因子及核心被引频次及相关地学核心期刊网站新媒体应用数据。【结果】应用新媒体的地学核心期刊主要评价指标(核心被引频次和核心影响因子)总体都有较为显著的提升。【结论】新媒体的应用能够有效提升地学核心期刊的影响力和综合竞争力,地学期刊新媒体化将成为今后地学期刊发展的主流趋势。 相似文献
8.
广东省科技期刊评价指标分析 总被引：4，自引：3，他引：1
根据(2009年版中国科技期刊引证报告>(核心板)中包括的广东省所主办的期刊统计数据,从相对被引频次、相对影响因子、离均差率、扩散指标、基金论文比和地区分布情况等6个期刊评价的相对指标,对广东省科技期刊的引证情况、期刊影响力进行了统计分析与评价,运用综合评价总分对各期刊所处的学科位置进行了概述.广东省科技期刊的影响力较... 相似文献
9.
【目的】建立科技期刊引文综合评价指标函数,希望能对科技期刊引文综合评价工作提供参考意见。【方法】选用IF、IF5、h指数、SJR、ES和SNIP为具有代表性的核心引文评价指标,通过对Wo S数据库和Scopus数据库共有的1881种医学类期刊的这六大指标数值的因子分析。【结果】找出对它们起支配作用的潜在影响因素:公因子F1(平均影响力因子)和F2(整体影响力因子)。在权衡这两个因素的基础上,构建了综合引文评价指标函数。【结论】通过实例(选取专业期刊和综合期刊为样本)验证该综合指标能较好地消除期刊载文量对期刊综合影响力评价的影响。 相似文献
10.
刘莲花 《中国科技期刊研究》2016,27(6):645-649
【目的】采用循环修正的组合评价方法对期刊进行综合评价,以解决多种评价方法结论的非一致性问题。【方法】先采用TOPSIS法、主成分分析法、因子分析法和加权算术平均法对预防医学与卫生学核心期刊进行了综合评价,并通过肯达尔一致性系数对四种方法进行了一致性检验,然后利用平均值法、Borda法、Copeland法对四种单一评价结果进行了循环修正评价。【结果】经过两次循环评价得到了一致的结论。【结论】循环修正的组合评价方法能有效解决多种评价方法结论的非一致性问题,从而提高期刊评价的全面性和科学性。 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.
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
18.
《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
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