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1.
盛丽娜 《中国科技期刊研究》2018,29(1):69-74
【目的】 分析我国SCI收录期刊影响因子相关自被引率(SCR-IF)的状况,进一步解读自引在影响因子中的作用,以利于我国办刊人掌握期刊的发展方向。【方法】 以2015年版SCI收录期刊为研究对象,计算中国和G7国家(美国、英国、德国、法国、日本、意大利、加拿大)、有代表性的新兴国家(韩国、印度、俄罗斯)期刊自被引率(SCR),同时计算各刊的SCR-IF、非影响因子相关自被引率(SCR-NIF)及二者比值K,对各国期刊的SCR-IF、SCR-NIF、SCR、K值情况进行对比分析。【结果】 各国期刊SCR-IF的均值均大于SCR-NIF和SCR,K的中位值为1.502~1.889;我国SCI收录期刊的SCR-IF、SCR-NIF均小于韩国和俄罗斯,但高于其他8个国家;我国SCI收录期刊中,SCR-IF为0的期刊占比为3.28%,小于各国均值6.21%;我国K>2.0的期刊占比为34.97%,小于各国均值37.19%。【结论】 SCR-IF较SCR更能准确反映期刊自引对影响因子的实际作用。我国SCI收录期刊SCR-IF相对较高,但仍有部分期刊的自引对影响因子没有任何作用,且我国SCI收录期刊的自引较少有人为操控。 相似文献
2.
方红玲 《中国科技期刊研究》2018,29(2):165-170
【目的】 比较国内外眼科学、数学和环境科学期刊被引半衰期的差异,为期刊编辑今后制定工作策略提供参考。【方法】 选择国内外眼科学、数学和环境科学期刊各10种,收集期刊的被引半衰期以及其他期刊评价指标,比较国内外相同学科期刊被引半衰期的差异;采用Spearman 相关分析法,对国内外眼科学、数学、环境科学期刊被引半衰期与其他文献计量学指标的相关性进行分析。【结果】 我国眼科学和环境科学期刊被引半衰期均短于国外相同学科期刊,我国大多数数学期刊被引半衰期长于国外数学类期刊。我国眼科学期刊被引半衰期与引用半衰期呈正相关,环境科学期刊被引半衰期与平均引文数呈正相关;国外3个学科期刊被引半衰期均与引用半衰期呈正相关(P均小于0.05)。【结论】 我国眼科学和环境科学期刊编辑今后首要任务是提升期刊国内显示度和持久影响力,数学期刊则需提升国际显示度和影响力。 相似文献
3.
方红玲 《中国科技期刊研究》2019,30(1):83-87
【目的】 分析我国SSCI收录期刊影响因子相关自被引率(Self-Cited Rate in Correlation with Impact Factor,SCR-IF)的状况,为我国SSCI收录期刊今后发展提供参考。【方法】 以我国和G7国家(美国、英国、德国、法国、意大利、加拿大、日本)以及新兴国家代表(韩国、印度、俄罗斯)的SSCI收录期刊为研究对象,分别计算样本期刊的自被引率(Self-Cited Rate,SCR),同时计算SCR-IF、非影响因子相关自被引率(Self-Cited Rate Non-Correlation with Impact Factor,SCR-NIF),以及二者比值(K),对11个国家SSCI收录期刊的SCR-IF、SCR-NIF、SCR、K进行比较分析。【结果】 11个国家SSCI收录期刊的SCR-IF均值均大于SCR-NIF均值和SCR均值,K的均值范围为1.358~3.040;我国SSCI收录期刊SCR-IF和SCR-NIF均低于法国、韩国、俄罗斯,SCR-IF还低于德国,SCR-NIF还低于意大利、印度,高于其他国家。我国SSCI收录期刊中,SCR-IF为0的期刊占比为9.09%,只高于美国、英国和俄罗斯,低于其他国家;我国SSCI收录期刊中,K>1.0且SCR-NIF>0.2的期刊占比为9.09%。【结论】 我国SSCI收录期刊的SCR不高,但是SCR-IF高于SCR,可能与我国被SSCI收录期刊数量较少有关。 相似文献
4.
【目的】 分析我国SCI收录期刊国际合作出版情况及实行国际合作出版后期刊影响力的变化。【方法】 选取2007—2016年与国外出版商有过合作出版经历的151种SCI收录期刊为研究对象,以期刊总被引频次、影响因子、即年指标和分区等作为期刊影响力指标,对样本期刊的国际合作出版情况进行统计,探讨我国国际合作出版期刊的影响力变化。【结果】 我国SCI收录期刊的国际合作出版商主要有Springer、Elsevier和Wiley-Blackwell;一直是国际合作出版的期刊共118种,一直是国内出版的期刊共28种,国际合作出版期刊与国内出版期刊的影响因子分别为2.01±2.04和0.91±0.52(P<0.001),即年指标分别为0.39±0.45和0.35±0.41(P=0.039),总被引频次分别为1566.3±1845.0和1335.8±1376.4(P=0.620),仅期刊总被引频次差异无统计学意义。国际合作出版与国内出版的Q1区期刊所占比例分别为24.6% 和0,Q2区期刊所占比例分别为21.2%和13.8%,且由国内出版变更为国际合作出版的期刊共27种,其中数据较全的10种期刊里,5种期刊影响力提升明显,1种期刊影响力提升幅度较小,4种期刊影响力略有下降,但幅度较小。 【结论】 与国外出版商合作可在一定程度上提升我国科技期刊的国际显示度和学术影响力。 相似文献
5.
我国SCI收录期刊主要文献计量学指标国际对比 总被引：1，自引：1，他引：0
方红玲 《中国科技期刊研究》2015,26(8):875-879
【目的】了解我国SCI收录期刊的主要文献计量学指标整体水平在国际上排名,为正确认识我国SCI收录期刊的情况提供一定参考。【方法】 把我国(不含台湾省SCI收录期刊)与G7国家(美国、英国、法国、德国、意大利、加拿大、日本)和新兴国家(韩国、印度和俄罗斯)2013年SCI收录期刊主要文献计量学指标进行对比。【结果】 2013年我国SCI收录期刊数(162种)位居11个国家中第6位,刊均被引频次位居第8位;我国SCI收录期刊刊均论文数相对较多、自引率相对较高、特征因子和论文影响分值较低;论著篇均引文数位居第7位,而综述篇均引文数位居第4位。【结论】我国SCI收录期刊为进一步提高国际影响力和希望加入SCI期刊可从以下方面努力:期刊出版语言改为英语、减少期刊年均论文数、稿源丰富期刊可缩短出版周期或提高论文录用标准、严格控制期刊自引数量等。 相似文献
6.
【目的】 以SSCI的学科分类为单位,分析不同学科期刊的Article和Review参考文献量的差异,以利于相关人员了解及借鉴,同时为进一步从文后参考文献的角度更深入了解现行期刊评价指标的优缺点提供数据支持。【方法】 分学科下载2015年SSCI收录期刊的主要文献计量学指标,同时记录各刊在学科内的分区及各刊Article和Review的平均参考文献量,Spearman等级秩相关性分析用于分析各学科Article和Review的参考文献量与学科各评价指标的相关性。【结果】 2015年SSCI共收录了57个学科的4468种期刊,Article和Review的参考文献量与学科规模的大小均不相关(均为P>0.05);学科内Article和Review的参考文献量由多到少排序,依次为Q1区(60.27条、86.85条)、Q2区(52.21条、83.80条)、Q3区(48.16条、74.61条)、Q4区(45.70条、62.90条),且差异均有统计学意义(均为P<0.05)。相关性分析结果表明,Article参考文献量仅与学科中位被引半衰期和学科中位引用半衰期存在相关性;Review参考文献量除与学科中位被引半衰期不存在相关性外,与其他主要期刊评价指标均有相关性(均为P<0.05)。【结论】 按SSCI学科分组,Article和Review参考文献量与学科影响力的关系并不一致,二者与学科规模均不相关;同一学科影响力较大期刊的Article和Review参考文献量相对较多。 相似文献
7.
王燕 《中国科技期刊研究》2018,29(10):1048-1053
【目的】 比较研究“中国科技期刊国际影响力提升计划”(以下简称“影响力提升计划”)对其第一批资助的SCI收录期刊国际影响力水平的提升效果。【方法】 依据Web of Science《期刊引证报告》和中国知网《中国学术期刊国际引证报告》2013年和2016年数据,对2013年11月被“影响力提升计划”资助的非新创办的SCI收录期刊和未受资助的SCI收录期刊进行对照研究。比较其总被引频次(Total Cites,TC)、影响因子(Impact Factor,IF)、国际影响力指数(Clout Index,CI)、平均期刊影响因子百分位(Average Journal Impact Factor Percentile,AJIFP)的变化及分区提升率。【结果】 受资助期刊和未受资助期刊TC、IF、篇均被引频次、即年指标、标准化特征因子、CI、国际他引TC和国际他引IF均显著提升(P<0.05),且受资助期刊被资助后AJIFP同样提升显著(P<0.05)。除即年指标和标准化特征因子的增幅在2组间差异无统计学意义外,受资助期刊上述指标的增幅及分区提升率均显著高于未受资助期刊(P<0.05)。不同资助额度的受资助期刊间影响力指标的提升差异无统计学意义(P>0.05)。受资助期刊在资助前后可被引文献数增加并不显著(P>0.05),降低幅度超过10%的期刊共6种(14.6%)。但未受资助期刊可被引文献量降低幅度超过10%的期刊占35.8%。【结论】 “影响力提升计划”1期资助效果显著。大部分受资助期刊影响力指标提升显著,但个别期刊影响力指标不升反降。受资助期刊的可被引文献量增加并不明显,有些期刊可被引文献量下降明显。不同资助额度对期刊影响力指标的提升影响不明显。 相似文献
8.
盛丽娜 《中国科技期刊研究》2018,29(3):291-295
【目的】 以《期刊引证报告》(JCR)内的6门学科为基础,分析期刊影响因子相关自被引率(SCR-IF),为深入解析自被引率(SCR)在期刊评价中的作用提供数据参考。【方法】 分别在SCI和SSCI中各选择相互独立的3门学科,充分考虑学科规模和影响力大小的差异性,计算各期刊的SCR、SCR-IF,以及非影响因子相关自被引率(SCR-NIF),对比分析不同JCR学科以及不同期刊分区中SCR-IF的分布特征。同时,对SCR-IF与期刊其他主要文献计量学指标进行Pearson相关性分析。【结果】 列入研究的401种期刊中,SCR-IF大于0的期刊占93.77%;6门学科内,SCR-IF的平均值大于SCR的平均值,SCR的平均值大于SCR-NIF的平均值;Q1区和Q2区期刊的SCR-IF均小于Q3区和Q4区期刊的SCR-IF;SCR-IF与期刊其他主要文献计量学指标具有相关性,但是相关系数较小。【结论】 各学科期刊的SCR-IF均大于SCR和SCR-NIF;SCR-IF在影响力较高的期刊中相对较小。 相似文献
9.
2010-2014年中国新被SCI收录科技期刊的文献计量学分析及启示 总被引：1，自引：1，他引：0
丁佐奇 《中国科技期刊研究》2015,26(7):758-762
摘 要 【目的】研究2010-2014年中国新被SCI收录科技期刊的文献计量指标,分析发展态势。【方法】 利用Web of Science和JCR,预估各期刊2014年度影响因子（IF）,统计H指数、零被引率等文献计量学指标,研究IF和零被引率、大陆地区发文和大陆施引次数的相关性。【结果】 我国新被SCI收录期刊发展势头良好。【结论】 当前应从减少零被引率、提高国际论文比、组约高质量研究性论文、优先资助填补我国学科空白的英文期刊等方面促进我国SCI期刊的培育和发展。 相似文献
10.
【目的】分析被Scopus收录的国内外人文社科期刊特点,提出对提升我国人文社科期刊国际影响力的建议。【方法】采用分类统计和对比分析的方法,对Scopus收录期刊的整体情况和包括我国在内的世界重要国家的人文社科期刊进行研究和分析。【结果】英语、法语和西班牙语期刊在国际传播中占有优势,中文期刊在国际竞争中相对处于劣势,尤其中文人文社科期刊被收录较少;英国和美国所有期刊和人文社科期刊数量在Scopus中占据垄断地位,虽然近年来我国被收录的人文社科期刊不断增多,且增速较快,但目前我国被收录人文社科期刊数量排名第13。在中国、美国、俄罗斯、日本、韩国和印度等国家科技期刊的国际影响力明显高于人文社科期刊,而英国、西班牙、意大利、法国和波兰等国家的人文社科期刊比科技期刊的对外传播力更强。除了西班牙、意大利、法国、巴西和俄罗斯被收录期刊以本国语期刊为主外,其他世界重要国家被收录人文社科期刊都以英文期刊为主。美国在心理学领域被收录的期刊最多,在其他学科领域都是英国被收录的期刊最多。我国被收录人文社科期刊涉及学科领域较广,其中心理学领域表现最佳,在某些二级学科领域我国没有期刊被收录。大多数英国、美国和荷兰... 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