Periodicals and proceedings in referral databases: Quantitative and qualitative estimations

Using data from Ulrich’s Periodicals Directory, and the extent of coverage by abstract information resources and indices, the worldwide output of periodicals and proceedings (including those represented in electronic form) is studied. A quantitative characterization of the entire output of worldwide editions, as well as its abstracted portion is given. To provide complete reception of needed subject information and cover a maximum number of periodicals using an information system, a method for selecting several databases, which makes it possible to get a maximum coverage of primary sources with a certain amount of duplication, is proposed. Data on abstracting are obtained as the result of analyzing the input stream of approximately 700 databases and indices. Basic statistics for the abstracted stream are given for a number of companies: VINITI (All-Russia Institute for Scientific and Technical Information, Russian Academy of Sciences), CSA (Chemical Abstracts Service), Thomson Corporation, Elsevier, CABI Publishing, CAS (Cambridge Scientific Abstracts), and several others. A list of 25 of the largest abstract journals and referral databases, with respect to the number of periodicals represented in them, is given.     

The development of internationally managed information systems and their prospects

This paper reviews a selection of international collaborative efforts in the production of information services and attempts to characterize modes of cooperation. Information systems specifically discussed include: international nuclear information system (INIS); Nuclear Science Abstract (NSA); EURATOM; AGRIS; AGRINDEX; Information Retrieval Limited (IRL); IFIS (International Food Information Service); Chemical Abstracts Service (CAS); MEDLARS; and TITUS. 3 methods of international information transfer are discussed: commercial transactions; negotiated (bilateral) barter arrangements; and contribution to internationally managed systems. Technical, economic, and professional objectives support the rationale for international cooperation. It is argued that economic and political considerations, as much as improved technology or information transfer, will determine the nature of collaboration in the future.     

基于二模复杂网络的隐性知识发现方法研究——以潜在药物靶点挖掘为例

[目的/意义]通过构建二模复杂网络模型,揭示隐藏在海量文献中的隐性知识。[方法/过程]通过NetworkX复杂网络工具包,依据任意两个节点的共现关系构建二模复杂网络模型;对网络模型中节点的共现关系进行加权,计算网络的拓扑信息并进行AP聚类,提取节点间的直接关系;采用AUC方法对AA、JC、加权改进的wAA和wJC等4种链路预测算法进行评价,遴选出最合适的预测算法,并对复杂网络的隐性关系进行预测分析。[结果/结论]以潜在药物靶点挖掘为例进行的实证研究结果表明,wAA链路预测算法为最优的链路预测算法;二模复杂网络模型、指标和方法体系在美国化学文摘社数据库中的药物靶点挖掘中具有一定的有效性。下一步计划在其他数据库中或其他研究领域中进行尝试,以进一步验证该模型的通用性和有效性。     

Russian scientific publications 2005–2009 in the science citation index,scopus, and chemical abstracts databases

This paper presents the results of a bibliometric study of the scientific publications that are affiliated with Russia and included in multidisciplinary databases, such as Science Citation Index and Scopus, as well as in the specialized Chemical Abstracts database, in the period from 2005 to 2009. Major bibliometric indicators, including citation indexes, are explored. It is shown that the Scopus database contains most of the Russian publications in the period from 2005 to 2009. While a gradual decrease in the number of peer-reviewed Russian-language journals constitutes a general trend for all three databases, the Chemical Abstracts database leads in terms of the coverage of these journals. It is found that despite the large number of translated versions of journals, Russian publications are still significantly late in their coverage by foreign databases, which has a significant impact on their citation levels.     

美国《化学文摘》光盘版和网络版中化学物质检索方法的选择与介绍

本文详细介绍了美国<化学方法,并对两种不同出版形式下化学物质检索方法的选择及其优缺点作了简单总结.文摘>的光盘版CA on CD和网络版SciFinder Scholar中化学物质的检索     

数字参考咨询集成服务平台的构建

[目的/意义]构建数字参考咨询集成服务平台,有效解决中国科学院文献情报中心参考咨询平台存在的服务场景离散、使用流程繁琐以及与科研过程脱节的问题。[方法/过程]提出构建"数字参考咨询集成服务模式"方法,利用Red5流媒体技术、Flex富客户端以及Java跨平台等信息技术,对实时咨询、即时通信服务、Alert服务、咨询服务统计评价以及支持第三方平台的开放接口等多种信息服务集成模式进行设计与实现。[结果/结论]创建中国科学院文献情报中心新版网上咨询台,有效支撑98位学科咨询专家为中国科学院和社会用户提供高效、稳定与用户体验良好的数字参考咨询服务,其集成服务模式也支持相关信息服务系统与参考咨询服务的集成融合与互操作。     

Classifications and classifiers in the field of scientific and technical information

The correlation between the semantically close triads of the terms “rubric-rubrication-rubricator” and “class-classification-classifier” is considered in the historical aspect. The main types and structures of indices (codes of classifiers) of STI databases with various themes (VINITI RAS, INSPEC, PASCAL, JICST, Chemical Abstracts, COMPENDEX, Science Citation Index (SCI), GeoRef, METADEX, AEROSPACE and High Technology) are illustrated proceeding from the modern definition of the concept of classification systems.     

香港地区高校图书馆校友服务调查分析

[目的/意义]通过对香港地区高校图书馆校友服务现状进行调查分析,总结香港高校图书馆校友服务的先进经验,为完善内地高校图书馆校友服务提供参考和借鉴。[方法/过程]以香港教资会资助下的八大高校图书馆校友服务为样本,通过网络调查法就其图书馆主页校友专栏导航及校友服务具体内容下的阅读卡服务、借书卡服务、设备服务、电子资源服务等方面进行调查、分析与总结。[结果/结论]根据调查结果,论述香港地区高校图书馆在校友服务方面对内地高校图书馆的启示。     

TOXMAP: a GIS-based gateway to environmental health resources

The National Library of Medicine (NLM) has an extensive collection of environmental health information, including bibliographic and technical data on hazardous chemical substances, in its TOXNET databases. TOXNET also provides access to the United States Environment Protection Agency (EPA)'s Toxics Release Inventory (TRI) data, which covers release of specific chemicals via air, water, and land, and by underground injection, as reported by industrial facilities around the United States. NLM has developed a Web-based geographic information system (GIS), TOXMAP , which allows users to create dynamic maps that show where TRI chemicals are released and that provides direct links to information about the chemicals in TOXNET. By extracting the associated regional geographic text terms from the displayed map (e.g., rivers, towns, county, state), TOXMAP also provides customized chemical and/or region-specific searches of NLM's bibliographic biomedical resources. This paper focuses on TOXMAP's features, data accuracy issues, challenges, user feedback techniques, and future directions.     

Seeking the 99% chemistry library: Extending the serial collection through the use of decentralized document delivery

Libraries are successfully seeking, developing, and testing new ways to broaden their collections with materials that are neither cataloged nor stored for anticipated need. Instead, these acquisitions are purchased on demand, ordered and received online, by fax or overnight mail, and delivered to the requestor. At the University of Illinois at Urbana-Champaign (UIUC) Chemistry Library, a document delivery project was established to study how this type of acquisition could be mainstreamed into everyday collection development as a traditional user service. A 6 1/2-month pilot project was conducted that provided free document delivery for articles, patents, and conference proceedings, which were available through the Chemical Abstracts Document Delivery Service, a commercial vendor. This pilot study tested the feasibility of decentralized document delivery in a branch library; a follow-up questionnaire was used to gauge user response to the service. Data from the study were also used to evaluate the serials collection and previous serial cancellation decisions. Results showed the decentralized document delivery service (DDS) was a cost-effective way to extend the serials collection; the user survey results showed a high level of user satisfaction associated with the service.     

Converting from Hard Copy to Microfilm:

An administrative experiment in an industrial R&D from laboratory was conducted to evaluate the effectiveness of converting Chemical Abstracts from hard copy to microfilm. A brief training session on the use of Chemical Abstracts was also conducted in an attempt to increase user (and potential user) awareness of the abstracts and to alter attitudes and behavior toward the abstracts in a positive way. The results of the experiment indicate that substantial space savings in search and photocopy time, and intermediate-to-long-range cost savings can be realized by converting Chemical Abstracts from hard copy to microfilm. Scientists and engineers, however, perceived the microfilm as less accessible and less easy to use than the hard copy, and were less satisfied with the microfilm than they were with the hard copy. The training session, moreover, while generally perceived to be well conducted, informative, and valuable, was not influential in increasing utilization rates for the microfilm in the short run. The small number of individuals who attended the training session and used the microfilm during the trial period precluded linking the training session with users' attitudes toward the abstracts.     

Convergent validity of bibliometric Google Scholar data in the field of chemistry—Citation counts for papers that were accepted by Angewandte Chemie International Edition or rejected but published elsewhere,using Google Scholar,Science Citation Index,Scopus, and Chemical Abstracts

Examining a comprehensive set of papers (n = 1837) that were accepted for publication by the journal Angewandte Chemie International Edition (one of the prime chemistry journals in the world) or rejected by the journal but then published elsewhere, this study tested the extent to which the use of the freely available database Google Scholar (GS) can be expected to yield valid citation counts in the field of chemistry. Analyses of citations for the set of papers returned by three fee-based databases – Science Citation Index, Scopus, and Chemical Abstracts – were compared to the analysis of citations found using GS data. Whereas the analyses using citations returned by the three fee-based databases show very similar results, the results of the analysis using GS citation data differed greatly from the findings using citations from the fee-based databases. Our study therefore supports, on the one hand, the convergent validity of citation analyses based on data from the fee-based databases and, on the other hand, the lack of convergent validity of the citation analysis based on the GS data.     

知识找回场景下推荐系统模拟实现及评价研究

[目的/意义]信息过载一直是知识工作者在搜集、处理和创造知识的过程中所面临的主要困境。这种困境导致的结果之一是很难回忆起曾经使用过的文档的内容细节及具体位置，而推荐系统则能减少这样的困难。通过研究对比不同推荐系统在这一任务下的优缺点，可以帮助知识工作者更好地完成回忆任务。[方法/过程]基于相关理论，在同一场景（知识找回）模拟实现并测试了4种不同类型的推荐过程，包括基于内容的推荐CBR、基于协同过滤的推荐CFR、基于推理网络的推荐INR与融入了情境感知的推荐CAS，根据所确定的若干指标（精确性、情境相关性、预测性、多样性）对推荐效果进行比较。[结果/结论]结果显示，以上推荐系统在帮助用户回忆并找回文档过程中都有各自的优势，而基于情境感知的推荐系统在情境相关性与预测用户行为方面具有较好的效果。     

Environmental health and toxicology resources of the United States National Library of Medicine

For over 40 years, the National Library of Medicine's (NLM) Toxicology and Environmental Health Information Program (TEHIP) has worked to organize and to provide access to an extensive array of environmental health and toxicology resources. During these years, the TEHIP program has evolved from a handful of databases developed primarily for researchers to a broad range of products and services that also serve industry, students, and the general public. TEHIP's resources include TOXNET , a collection of databases, including online handbooks, bibliographic references, information on the release of chemicals in the environment, and a chemical dictionary. TEHIP also produces several resources aimed towards the general public, such as the Household Products Database , which helps users explore chemicals often found in common household products, and Tox Town , an interactive guide to commonly encountered toxic substances, health, and the environment. This paper introduces some of NLM's environmental health and toxicology resources.     

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对美国《化学文摘》的收录范围、内容编排、文摘量和出版情况的变化作简要概括,对文摘类目内容、索引种类与检索方法作较细致的介绍。     

多馆联盟下的中国科学院全院图书馆统一自动化系统应用模式

[目的/意义] 建设多馆联盟的中国科学院全院图书馆统一自动化系统,有效解决中国科学院内图书馆资源服务离散、独立法人下图书馆经费和资源独立管理、数据和系统重复建设的问题。[方法/过程] 提出构建多馆联盟模式下的总分馆“云服务”的管理模式,并选用相对成熟、稳定的Aleph500系统对中国科学院研究所图书馆印本资源、全院统筹订购的电子资源进行有效集成和揭示。[结果/结论] 建成了“全院图书馆统一自动化系统共享服务网络”,形成了中国科学院全院工作和服务联盟,有效支撑了中国科学院研究所图书馆的基础业务和服务工作。     

Transformation of libraries during Covid-19 pandemic: A systematic review

PurposeThis study analyze academic library services during Covid-19 pandemic (2020 and 2021), as well as the challenges they face, emerging library roles, and the most effective communication tools.MethodA systematic review of the relevant literature was undertaken following PRISMA guidelines. The relevant literature was retrieved from four major scholarly databases (Scopus, Web of Science, Library, Information Science & Technology Abstracts (LISTA), and Library and Information Science Abstracts (LISA)). The relevant 23 studies were included fulfilling inclusion criteria. A quality assessment of the included studies was also performed.FindingsThe findings revealed that Covid-19 pandemic is certainly effecting and transforming libraries, their services and management. The library services during Covid-19 pandemic, their fundamental challenges, emerging roles, and available preferable communications tools are the categories in this study to better understand the pandemic-transformation.ImplicationsThe practical and policy implications are that libraries must establish infrastructure and improve accessibility in order to provide the best possible support to modern library users who access resources remotely in this rapidly evolving digital environment. Organizational policymakers and library directors should prepare emergency and disaster management plans. The libraries should ensure their presence on social media and make use of their library websites.     

科研机构引进电子资源科技支撑绩效评价研究与发展——以中国科学院集团引进外文电子期刊为例

[目的/意义] 介绍中国科学院文献情报中心在电子资源科技支撑绩效评价领域开展的工作以及取得的阶段性成果，为科研机构开展电子资源科技支撑绩效评价工作提供有益参考。[方法/过程] 结合国内外电子资源成效评估的理论与实践，构建以外文电子期刊为案例的电子资源科技支撑绩效评价指标体系，并进行实例评价；同时，根据研究所的科技支撑绩效评价需求，补充和完善面向研究所评价目的的电子资源科技支撑绩效评价指标体系。[结果/结论] 通过实例评价，构建的外文电子期刊科技支撑绩效指标体系具有可操作性；同时，融合研究所的评价需求，改造构建形成了满足集团牵头单位和研究所评价需求的外文电子期刊科技支撑评价指标体系，具体包含4个评价方面、16项评价指标。     

科研机构引进电子资源科技支撑绩效评价研究与发展——以中国科学院集团引进外文电子期刊为例

[目的/意义]介绍中国科学院文献情报中心在电子资源科技支撑绩效评价领域开展的工作以及取得的阶段性成果,为科研机构开展电子资源科技支撑绩效评价工作提供有益参考。[方法/过程]结合国内外电子资源成效评估的理论与实践,构建以外文电子期刊为案例的电子资源科技支撑绩效评价指标体系,并进行实例评价;同时,根据研究所的科技支撑绩效评价需求,补充和完善面向研究所评价目的的电子资源科技支撑绩效评价指标体系。[结果/结论]通过实例评价,构建的外文电子期刊科技支撑绩效指标体系具有可操作性;同时,融合研究所的评价需求,改造构建形成了满足集团牵头单位和研究所评价需求的外文电子期刊科技支撑评价指标体系,具体包含4个评价方面、16项评价指标。     

新时期科技档案工作的新变化与新问题——基于中国科学院科技档案实践的思考

[目的 /意义]科技档案是科技成果的重要组成部分,研究新时期科技档案资源的特点及其对科技档案工作带来的挑战与问题,对科技档案工作发展具有重要的理论和实践意义.[方法/过程]调研科技档案工作的研究现状,回顾我国和中国科学院科技档案工作的发展历程,梳理新时期科技档案资源的新特点、科技档案工作的新变化,分析当前科技档案工作亟...