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对《中文核心期刊要目总览》、“中国科技论文统计与引文数据库”、“中国科学引文数据库”做了概述，统计分析了高校自然科学学报在其中的学科和地域分布情况：非综合性高校自然科学学报较综合性高校自然科学学报入选的比例大一些。江苏、北京、陕西、湖北、上海分布较多，实力最强。 相似文献
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四种可检引文的中文数据库浅析 总被引：3，自引：0，他引：3
本文主要介绍了国内一些重要的引文数据库，包括中国学术期刊全文数据库、中国科学引文数据库、中文科技期刊引文数据库、中国社会科学引文索引，并对此四种重要的引文数据库的引文检索功能和需要改进的地方进行了分析。 相似文献
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《科技通报》2005,21(1):68-68
中国科技论文与引文分析数据库(CSTPC,CSPY)(1986-)主要编辑单位:中国科技信息研究所万方数据股份有限公司;电子版或网络:中国科技论文统计分析数据库,中国科技论文引文分析数据库;印刷版:中国科技论文统计与分析,中国科技期刊引证报告。中国科学引文数据库(CSCD)(1989-)主要编辑单位:中国科学院文献情报中心;电子版或网络:中国科学引文数据库,中国科学计量指标数据库;印刷版:中国科学计量指标-论文与引文统计。中文社会科学引文索引(CSSCI)(1997-)主要编辑单位:南京大学与香港科技大学;电子版或网络:中文社会科学引文索引;印刷版:… 相似文献
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钟镇 《中国科技期刊研究》2017,28(3):257-265
【目的】 解析中文学术期刊与中文引文数据库中错误引文的特征、成因与影响,以引起中文学术期刊编辑部与数据库编制机构对错误引文现象的重视,并为相关学者进一步研究错引现象提供方法论方面的借鉴。【方法】 通过文献调研,以2005年《中华妇产科杂志》的中国科学引文数据库错引文献为例,讨论了中文期刊与中文引文数据库中错误引文的识别方法,初步研究了该现象的成因及影响。【结果】 引文数据库中错误引文分为作者错著与数据库错标两种情况,陌生情境引用、字型或拼音编码相近、著录规则理解性偏差等因素均有可能导致引文错著;引用关系匹配算法的缺陷、施引文献作者的卷码著录遗漏及数据库信息导入方法的不完善是数据库错标型错引记录产生的主要原因。【结论】 各方面应共同努力推动建立涵盖科学共同体所有利益相关主体在内的错误引文报告机制抑控错误引文的发生。 相似文献
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2001-2006年师范学院图书馆科研论文统计分析 总被引：2，自引：0，他引：2
利用"中国期刊全文数据库"、"中国引文数据库"和"中文科技期刊数据库",对2001-2006年师范学院图书馆科研论文进行统计分析. 相似文献
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目前国内引文检索常用的有Google学术搜索、CNKI的中国引文数据库、重庆维普的中文科技期刊引文数据库。文章通过抽样调查。随机选取一定数量儿科学文章,比较这些文章在这三种数据库中的检索结果,对它们的检索效果进行了定量评价。 相似文献
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简述网上三大检索工具 总被引：2，自引：0，他引：2
本文从来源期刊、覆盖学科、收录年限、更新频率、检索性能等方面对具有科学评价功能的《中文社会科学引文索引——CSSCI》、《中国科学引文数据库——CSCD》、《中国科技论文引文分析数据库——CSTPI》三大权威检索工具数据库进行全面具体介绍。 相似文献
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利用中国科技论文与引文数据库和中文科技期刊引文数据库,对中文核心期刊<计算力学学报>载文在1999～2008年4月间,被国内中文期刊引用频次分布,被引论文作者分布,被引论文年代分布和引用期刊分布等情况进行一次系统统计调查与分析,客观揭示我国自然科学研究学者对该刊载文的借鉴和吸收情况. 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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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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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
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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
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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
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Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献