共查询到20条相似文献，搜索用时 62 毫秒
1.
SCI收录中国期刊的统计分析与研究 总被引：2，自引：0，他引：2
以SCI期刊引证报告JCR(2005-2007)数据为依据,统计了近3年SCI收录的中国科技期刊,并就期刊的被引频次、影响因子、学科分类排名、被引半衰期及CSCD、CSTPCD收录情况等进行详细的对比分析。研究表明,中国科技期刊近年来影响因子等各项JCR指标持续上升,指标增长率大大高于美、英、日、德等国家,但实际影响因子均值、被引频次均值等表征期刊质量的指标均落后于欧美等科技大国。SCI收录中国科技期刊存在收录比例小,就被引频次及IF值而言择优不明显及学科分布不均衡情况。上述分析为科研人员了解我国科技期刊的现状及明确科技期刊的发展对策提供参考。 相似文献
2.
我国SCI期刊的计量分析与发展建议 总被引：1，自引：1，他引：0
【目的】评价我国的SCI期刊发展状况,在此基础上指出我国科技期刊影响力提升的路径。【方法】 以2012年JCR收录且有指标值的127种我国科技期刊为数据源,从影响因子、影响因子排序、总被引频次、总被引频次排序等四个方面进行计量分析。【结果】 通过指标比较,发现相对于我国的SCI发文量,我国的SCI期刊量无论从数量还是质量方面都有待提高。【结论】我国科技期刊可从提高认识、加强监管、完善审稿、扩大开放、提高期刊学术水平、打造中国顶尖学术论文展示平台等几个方面提升影响力。 相似文献
3.
4.
【目的】客观评估与分析我国中英文化学科技期刊在国内国际的影响力,并据此提出中国化学科技期刊现阶段发展的建议。【方法】以中国16种SCI收录的化学期刊为样本,采用文献计量学方法分析其2011—2020年在JCR、CJCR、CSCD-JCR 3个数据库的定量指标,包括影响因子(Impact Factor,IF)、总被引频次(Total Cites,TC)、自(被)引率或他引率等。【结果】JCR收录期刊的IF、TC与自引率等数据反映出近10年来我国英文化学科技期刊国际影响力明显提升,中文科技期刊国际影响力略有提升。CJCR与CSCD-JCR收录期刊的相应指标反映出近10年来中文科技期刊在国内具有高影响力的优势在减弱,2016—2020年英文化学科技期刊国内影响力明显提升。【结论】建议重视规划中文化学科技期刊的发展、优化现有英文化学科技期刊的结构以及新创办化学二级或交叉领域英文期刊以扩大该学科期刊方阵,促进我国中英文化学科技期刊全面深入的发展以及在国内国际的影响力大幅度提升。 相似文献
5.
入选PubMed数据库对提升医学期刊国际影响力的作用 总被引：1，自引：1，他引：0
[目的]探讨入选PubMed数据库对提升我国医学期刊国际影响力的作用,分析加快医学期刊国际化的途径和策略。[方法]采用文献资料法、文献计量法,以2011版《中文核心期刊要目总览》中6种入选PubMed数据库和6种未入选PubMed数据库的综合性医药卫生类核心期刊为研究对象,以《中国科技期刊引证报告(核心版)》和SCI数据库为数据来源,利用SPSS20.0分别对期刊的国内被引频次、影响因子和期刊在SCI数据库的被引频次做两独立样本的非参数检验。[结果]入选PubMed的期刊在SCI数据库中的被引频次显著高于未入选PubMed的期刊(P<0.05),而两组期刊的国内被引频次和影响因子均无统计学差异(P>0.05)。[结论]入选PubMed数据库对提升医学期刊国际影响力具有重要作用。加快医学期刊的国际化除加入SCI外还可考虑加入PubMed数据库等。 相似文献
6.
利用文献计量学方法对中国科协所属1 056种科技期刊的国内外学术影响力指标进行了统计分析。国内数据来自CSCD和CJCR数据库,统计分析了期刊收录比例、出版指标、总被引频次、影响因子及综合排名情况。国外数据主要基于汤森路透的Web of Science数据库及JCR数据库,分别对影响因子、作者分布及引文分布等指标进行了统计分析。结果显示,中国科协科技期刊的国内影响力优势明显,在被收录比例、总被引频次排名、影响因子排名、综合排名等方面,与国内科技期刊整体水平相比表现出领先优势。同时,国际显示度日益扩大,影响因子世界排名明显提升,论文的国际化程度有所提高。 相似文献
7.
SCI收录中国期刊的统计分析与研究 总被引：6，自引：0，他引：6
对美国科学信息研究所2003年的期刊引用报告收录我国的67种科技期刊的被引频次和影响因子及其学科、办刊机构、发文语种分布等进行了统计分析。统计表明，SCI收录中国期刊的被引频次和影响因子总体上处于世界下游水平，主要涉及化学、材料科学、生命科学、物理学、地球科学等学科，用英语发表的期刊占67．16％：各类学会、中科院、高等院校是主要的办刊机构。 相似文献
8.
中国科协科技期刊学术影响力的文献计量分析 总被引：1，自引：1，他引：0
利用文献计量学方法,对中国科协所属1 050种科技期刊的学术影响力指标进行了统计分析.国内数据来自CJCR数据库,统计分析了期刊总被引频次、影响因子、综合排名及发表高影响力论文情况.国外数据主要基于汤森路透的Web of Science数据库及JCR数据库,分别对影响因子、作者分布及引文分布等指标进行了统计分析.结果显示,中国科协科技期刊的国内影响力优势明显,无论在被收录比例、总被引频次排名、影响因子排名、综合排名,还是入选“2010年中国百种杰出学术期刊”的比例、所发表的“2010年中国百篇最具影响国内文章”的比例等方面,与国内科技期刊整体水平相比都表现出领先优势.同时,国际显示度日益扩大,体现在被国外重要数据库收录的期刊数量有所增加,影响因子世界排名明显提升,论文的国际化程度有所提高. 相似文献
9.
统计分析了美国ISI 2012年6月发布的期刊引证报告(JCR 2011)收录光学期刊的情况,从影响因子、被引频次等角度比较了近年来JCR收录光学期刊的变化。研究了JCR2011收录的77种光学期刊Q1区期刊的被引频次、影响因子、论文发表数量与出版单位等指标。以中国光学期刊网收录的光学期刊为基础,概括了中国光学期刊发展取得的成绩,结合对SCI收录光学期刊的分析,指出了我国光学期刊整体发展所面临的具体问题。最后就我国光学期刊如何继续开展合作,提高自身竞争力等提出了一些建议。 相似文献
10.
17种获奖师范类高校学报主要文献评价指标分析 总被引：3，自引：0，他引：3
陈汉忠 《中国科技期刊研究》2006,17(1):55-58
以2004年获全国高校优秀科技期刊奖的17种师范类高校学报为研究对象，对2003年学报的载文、基金论文比、第一作者和引文等情况，以及2000-2003年学报的总被引频次和影响因子进行了统计分析，并与相关文献进行比较。17种师范类高校学报的基金论文比平均为64．5％，高于我国科技期刊的平均水平，总被引频次和影响因子呈逐年上升趋势，但远低于我国科技期刊的平均水平，且各学报间的差距较大。师范类高校学报应改变综合办刊模式，向专业化、规模化方向发展。 相似文献
11.
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
12.
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
13.
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
14.
《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
15.
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
16.
《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
17.
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
18.
Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
19.
Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
20.
《中国科学院院刊(英文版)》2014,(3)
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence 相似文献