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我国社会科学成果排序-频度分布研究 总被引：1，自引：0，他引：1
选择国内社会科学论文、引文及投入等科学计量学指标,探讨我国社会科学论文及投入地域分布、机构分布、学科分布等的排序-频度分布特征,以及集中度分布特征,揭示了社会科学产出投入的分布特征。 相似文献
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我国研究机构科技论文排序—频度分布 总被引：3，自引：0，他引：3
本文选择国际论文、国内论文和国际论文引文等科学计量学指标，讨论了我国高等学校与科研机械科技论文的排序－频度分布特征，在此基础上提出了几个就引起科技管理和决策部门重视的问题。 相似文献
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2011年中国科技论文统计与分析简报 总被引：1，自引：0，他引：1
中国科技论文统计与分析课题组 《中国科技期刊研究》2013,24(1):57-64
自1987年以来,中国科学技术信息研究所一直承担着中国科技人员在国内外发表论文数量和影响的统计分析工作,每年定期公布中国科技论文发表趋势和状况。国际论文的统计源自国际权威检索数据库《科学引文索引》(SCI)、《工程索引》(Ei)、《科学会议录引文索引》(CPCI-S,原ISTP)、Scopus数据库、《医学索引》(MEDLINE)和《社会科学引文索引》(SSCI)。国内论文的统计采用中国科学技术信息研究所1987年开始建立的《中国科技论文与引文数据库》(CSTPCD),该数据库目前收录1998种中国各学科重要科技期刊,即"中国科技核心期刊(中国科技论文统计源期刊)"。本文按中国论文数在世界所处位置及影响、中国国际论文被引用和收录的情况、表现不俗的中国论文、中国国内论文发表数和被引用情况、中国科技论文的国际合作情况、社会科学论文统计情况等部分公布统计结果。 相似文献
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2002年中国科技论文统计与分析简报 总被引：8，自引：6，他引：8
中国科技论文统计与分析课题组 《中国科技期刊研究》2004,15(1):28-37
中国科学技术信息研究所已连续十余年向社会公布中国科技论文统计结果。文中国际论文数据取自三种在国际上颇具影响的检索工具：《科学引文索引》(SCI)、《工程索引》(EI)和《科学技术会议录索引》(ISTP)；国内论文数据取自中国科学技术信息研究所研制的《中国科技论文与引文数据库》(CSTPCD)，该数据库2002年度收录的中国科技论文统计源期刊为1534种。本文对我国科技论文在世界所处的位置及影响、我国国际论文发表数和被引用情况以及分布情况、我国国内论文发表数和被引用情况以及分布情况、中国科技论文的国际合作情况、我国SCI论文按学科的机构排序、国内期刊指标排序等内容进行了分析。 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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科技期刊影响因子值总体增长与个体变化的原因分析 总被引：6，自引：4，他引：6
董秀玥 《中国科技期刊研究》2005,16(1):66-68
自1987年以来，中国科学技术信息研究所一直承担着中国科技人员在国内外发表论文数量和影响的统计分析工作。2003年度的科技论文与引文统计工作现已完成。国际论文数据取自三种在国际上颇具影响的检索工具：《科学引文索引》(SCI)、《工程索引》(EI)和《科学技术会议录索引》(ISTP)；国内论文数据取自中国科学技术信息研究所研制的《中国科技论文与引文数据库》(CSTPCD)，该数据库20013年度收录的中国科技论文统计源期刊为1576种。本文按我国论文在世界所处位置及影响、我国国际论文发表数和被引用情况以及分布情况、我国国内论文发表数和被引用情况以及分布情况、中国科技论文的国际合作情况、中国香港特区和中国台湾省科技论文发表情况、国内期刊指标排序等部分公布统计结果。 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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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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《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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《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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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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《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