共查询到20条相似文献，搜索用时 62 毫秒
1.
文献引用延时效应及文献老化模型的修正 总被引：2，自引：0，他引：2
科技文献的发表过程存在明显的延时,本文分析了文献发表延时对引文统计结果的影响,提出了在各种老化模型中都应进行延时修正的观点,并通过ＳＣＩ引文年代分布统计数据进行了验证。 相似文献
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我国文献计量学的发展 总被引：4，自引：0，他引：4
文献计量学现已成为我国情报科学的一个重要分支学科，越来越得到图书情报学界的重视。从我国文献计量学前后各10年的发表文献，主要包括其发表年代、文献期刊分布、作者群分布看出其研究现状，进展及发展趋势，并提出文献计量学研究中存在的一些问题及解决办法。 相似文献
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《年度评论》──述评性连续出版物娄承肇（河北大学）述评性文献是在一定的时间周期内，由资深专业科技工作者对某学科或某专题所发表的大量原始文献中有价值的内容所作的综述和评论。这类文献在编写过程中广泛收集资料，作者对资料经过仔细研读，分析筛选，提炼浓缩后，... 相似文献
4.
从Medline数据库看国外期刊发表的中国生物医学论文 总被引：3，自引：1，他引：2
近年来，用文献计量学方法定量地评估科学研究活动越来越引起人们的关注．本文通过１９８８－１９９２年ＣＤ－ＲＯＭ版的Ｍｅｄｌｉｎｅ数据库，对发表在国外期刊上的中国生物医学文献进行了调查统计，着重分析了这些论文的特征和发表机构的特征，并对文献总量进行了横向比较。 相似文献
5.
从CSSCI1998年至2005年来源文献及被引文献中，检索到以核心期刊为研究主题的学术论文和被引文献，从发表论文的数量、发文期刊、作者所在机构、标引词和被引文献的来源及其时同分布、高被引文献、高被引作者的角度对我国核心期刊研究进行了归纳，分析出8年来有关我核心期刊研究的一些基本情况。最后指出核心期刊研究过程中存在的一些问题与发展趋势。 相似文献
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21世纪中国文献资源建设发展战略构想 总被引：16，自引：3，他引：13
文章剖析了文献资源和文献资源建设两个基本概念，提出更为宽泛的文献资源建设观，并以此为基础，就制订文献资源建设发展战略的依据，发展道路的选择，文献资源建设原则等问题发表见解，对２１世纪我国文献资源建设发展战略作了初步阐述。 相似文献
8.
从学位论文化的引文分析看硕士研究生的文献需求 总被引：3，自引：0，他引：3
通过对天津医科大学2001年86篇硕士研究生学位论文所引文献的数量、语种、文献类型，年代及出版物等的统计调查，并与国内同学科硕士学位论文的引文分析情况进行比较，发现硕士生在参考文献时首选英文文献，期刊类文献为主要文献源，外文期刊引用明显高于中文期刊，中文多选自发表后第3年的文献，外文则多选自发表后第4至6年期间的文献。本文归纳出我校研究生常用的72种中文、87种外文期刊，对图书馆适当调整期刊的订购，进一步提高馆藏期刊收藏的质量等方面，提供了一定的参考依据。 相似文献
9.
二次文献发表延时过程的数学模拟及其分析 总被引：1，自引：0，他引：1
二次文献发表延时过程模型的建立 ,为研究利用二次文献查新的漏检问题提供了定量化工具。文献查新 ,不仅要检索二次文献数据库 ,还要检索学科范围内近期的核心期刊和相关期刊的一次文献。它也为二次文献检索数据库建立了定量化研究方法。图 2。参考文献 1。 相似文献
10.
期刊论文被引用及其Web全文下载的文献计量分析 总被引：31，自引：0，他引：31
运用《中国学术期刊综合引证报告》及《中国学术期刊全文数据库Web下载统计报告》的文献计量数据分析了期刊论文网上下载频次的年代分布和被引用频次的年代分布，对比了它们的峰值（百分数）和峰值与统计年的年限差，得到“去年发表的论文被下载多，前年发表的论文被引用多，当年发表的论文下载频次与被引频次的比值高”这一规律性认识。研究了文献的网上下载频次分布和被引用频次的分布，对比了它们的集中系数。鉴于文献网上下载指标的排序与被引用指标的排序并不完全一致，建议将它们都作为独立指标在综合评价中予以适当考虑。 相似文献
11.
Nadia Zavorotna 《Slavic & East European Information Resources》2013,14(1-2):90-96
The author describes the Slavic Humanities Index, a bibliographic database of scholarly and cultural articles on subjects including history; literature; language teaching; linguistics; philosophy; ethnology; performing arts; and cultural, borderland, and regional studies. She discusses its development, its current form and functionality, and plans for the future. 相似文献
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《Slavic & East European Information Resources》2013,14(2-3):69-88
SUMMARY This article discusses Jewish book publishing in most of the Soviet Union's successor states after 1990. All publications on Jewish history, culture, traditions, and religion (Judaism) are included under this rubric. In addition to scholarly and educational publications, fiction translated from Yiddish and Hebrew, and “Russian-Jewish literature” are also included. The author provides statistics and discusses basic themes, linguistic issues, and problems encountered in the post-Soviet states. The article lists different publishers and organizations involved in Jewish book publishing. 相似文献
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《Journal of Web Librarianship》2013,7(3):169-181
This article describes a study of the two most popular plagiarism-detection software platforms available on today's market—Turnitin (http://www.turnitin.com/static/index.html) and SafeAssign (http://www.safeassign.com/). After a brief discussion of plagiarism's relevance to librarians, the authors examine plagiarism-detection methodology and conduct a review of the current literature regarding plagiarism-detection efficacy. To evaluate detection efficacy for Turnitin and SafeAssign, the authors constructed a brief study in which twenty sample papers containing portions of plagiarized material were submitted to each platform. The results show that Turnitin had the highest overall success at plagiarism detection with an 82.4 percent detection rate. Additionally, both platforms had a combined false-positive detection rate of 16.8 percent. The authors conclude that close review of material suspected of plagiarism is still essential for proper identification. 相似文献
14.
翟中文 《图书馆工作与研究》2011,(9):71-74
本文选择了国内外几个典型的引文数据库,如:美国《艺术与人文科学引文索引》、《社会科学引文索引》、中国的《中文社会科学引文索引》、《中国科技论文引文分析数据库》、中国科学引文数据库等,并对其收录范围、来源文献的学科分布、更新频率等方面进行了比较研究,对今后我国引文数据库的建设提出了一些建议。 相似文献
15.
《Slavic & East European Information Resources》2013,14(1-2):149-154
ABSTRACT The article describes the development and use of the database BAZTECH: Polish Technical Journal Contents. The database indexes Polish-language scientific and technical journals, and is available free-of-charge on the Internet. 相似文献
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《Slavic & East European Information Resources》2013,14(3-4):111-125
Abstract The Russian government is exerting increasing control over the country's media, although the media are resisting. This government-media conflict is relevant to Western academics and libraries, because the variety and quality of Russian periodicals is at stake. In addition, if the media are constrained, publishers of books are likely to experience restrictions, too. The difficulties the government is having in controlling the media, however, are a measure of how much Russia has changed. At the same time this conflict is occurring, book publishing is thriving. Official statistics show the number of titles published surpassed even the previous record set in 1977. Planning is in progress to restructure the state book industry sector, including publishing, printing and distribution. Book prices have increased more rapidly than inflation, and postage costs have also increased. Russian Press Service is doing its best to keep its prices to Western libraries down. 相似文献
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SUMMARY Describing her experience of establishing an Electronic Document Delivery Service at the library of the Lahore University of Management Sciences (LUMS), the author discusses the various issues, which significantly effect the net cost, delivery time and management process of providing such a service by a library in Pakistan. While presenting multiple options leading to an effective solution, the advantages and disadvantages of each option have been highlighted, and their implications, with particular reference to Pakistani libraries, have been discussed. The various points to be considered by Pakistani Librarians, while selecting a commercial Document Provider, have also been discussed. In the end, the author discusses the potential of using the Electronic Document Delivery facility as a time-saving and cost-effective tool for Resource Sharing among libraries in Pakistan. 相似文献
18.
ABSTRACT No one can predict what document delivery will look like in the future, but librarians must guard patron confidentiality even in an electronic environment. This time it isn't an easily solved problem like finding another way of recording circulation than handwriting patron names onto circulation cards, it is instead the tracking of personal information attached to electronic text supplied by publishers that is a potential violator of patron privacy. Unmonitored in their efforts to protect their intellectual property without considering the rights of their customers, publishers could pose a threat to their customers' privacy, thus limiting their legal right of free access to information. Although encryption technology would appear to provide an answer to the confidentiality problem, it is not a panacea and that must be considered as the National Information Infrastructure is developed. Librarians need to stay alert to the developments in electronic publishing to be sure their concerns for patron privacy continue to be heard. 相似文献
19.
This article uses the metaphor of building to frame discussion about how we prepare for the provision of learning in the years
to come. The intention is to catalyze key conversations that will shape how, where, and why we learn. The principal focus
is on areas such as blended learning, mobility, gaming, social networking, holographics, analytics, and the human touch. However,
the larger theme involves challenging the reader to vision how we bring the best of traditional education forward, combine
it with new technologies and techniques, to reach and teach students well. 相似文献
20.
Mike Shatzkin 《Publishing Research Quarterly》2009,25(3):154-158
The Book Industry Study Group and The Idea Logical Company carried out an online survey to capture publishers’ comments on
how market conditions were changing and what they are doing differently as a result of the economic pressures in the consumer
market. About 250 individuals responded to the online survey. Interviews were carried out of more than a dozen executives
at large and small publishers and their accounts to get further insights. The goal was to identify what are the sales conditions
for trade book publishers today and what publishers are doing to change sales and marketing and even editorial practices to
accommodate changing times. What we have learned from that joint effort is reflected in this article. 相似文献