The Accuracy of Self-Reported Internet Use—A Validation Study Using Client Log Data

The vast majority of empirical research on online communication, or media use in general, relies on self-report measures instead of behavioral data. Previous research has shown that the accuracy of these self-report measures can be quite low, and both over- and underreporting of media use are commonplace. This study compares self-reports of Internet use with client log files from a large household sample. Results show that the accuracy of self-reported frequency and duration of Internet use is quite low, and that survey data are only moderately correlated with log file data. Moreover, there are systematic patterns of misreporting, especially overreporting, rather than random deviations from the log files. Self-reports for specific content such as social network sites or video platforms seem to be more accurate and less consistently biased than self-reports of generic frequency or duration of Internet use. The article closes by demonstrating the consequences of biased self-reports and discussing possible solutions to the problem.     

数据网络中中文名称规范档的建设与发展

[目的/意义]名称规范档在书目数据库中对书目记录的检索点进行规范化校验,通过实现标目的一致性,达到检索效率提升、目录汇集的目的。分析国外名称规范档的最新研究进展及实践,以期为中文名称规范档的发展研究提供借鉴。[方法/过程]通过对当前中文名称规范档建设存在的问题进行客观分析,结合国外名称规范档的研究进展及实践,提出中文名称规范档的建设发展方向。[结果/结论]当前中文名称规范档的建设存在着数据规模小、数据完全性差、数据共享性低问题,从国外名称规范档的发展看出,其不再局限于图书馆内部建设,开始向合作共建共享发展,规范数据不再面向OPAC系统,向开放互联发展。因此中文名称规范档的建设可从共建共享、构建新模型与规则、提升质量方面着手,发挥中文名称规范档在网络环境下的规范控制作用。     

大数据环境下医院档案管理的SWOT分析

医院在日常的经营和管理活动中会形成一系列档案,具体包括医疗、科研、教学、行政管理档案等。档案的内容形式较为丰富,文字、图像、音频等都是其主要形式。在新时期,医院档案管理工作面临着全新的发展前景,医疗卫生体制的改革也对医院档案管理工作提出了更高的要求。作为医院档案管理人员,应积极的对科学的管理模式进行探讨,SWOT分析法就有助于医院档案管理人员了解大数据环境下档案管理工作的现实情境,从而能够为医院档案管理工作提供更加清晰的发展思路。本文在对医院档案管理工作进行分析时,结合大数据发展背景,对医院档案管理工作进行了详细的SWOT分析,并提出帮助医院档案管理人员实现科学、高效管理的具体措施。     

How to Use VERONICA to Find Information on the Internet

As more navigational tools, such as Archie, WAIS, Gopher, World-Wide-Web and VERONICA are introduced on the Internet, it is critical that reference librarians understand the function of each one. VERONICA (Very Easy. Rodent-Oriented. Net-Wide Index to Computerized Archives) is the newest, and most powerful tool, and it takes away the mystery of where files are hidden on the Internet. Using specific examples, this article takes the reader through step-by-step guides of menu choices showing how VERONICA is accessed through a Gopher client using simple keyword and Boolean searching. In addition, this article discusses the limitations and frustrations encountered when attempting to access information using gopher servers.     

Horizontal wires replace the vertical files

Traditionally, clippings of newspaper articles, pictures from magazines, pamphlets, charts, graphs, posters, proceedings, or copies thereof, and other miscellaneous information sources have been stored in vertical files in libraries. The practice of creating and maintaining vertical files is extremely time consuming. In a medical library, in particular, old information about diagnosis, treatment, and prognosis can quickly become incorrect, misleading, and possibly harmful. Adequately tending to the vertical files can require a librarian to create a balancing act between properly maintaining vertical files and meeting the needs of the users in other areas of the library. The maintenance of vertical files is, by nature, highly consumptive of paper and space consuming. A reasonable alternative to the traditional vertical files is the World-Wide Web. Search engines exist for locating specific information, and bookmarks and/or links which point users to particularly useful sites can be set in search software. Some methods for searching are discussed, and a variety of World-Wide Web information sources are offered.     

如何利用E-mail获取互联网信息

Internet 是世界上规模最大, 用户最多, 影响最广的网络互联系统。其信息资源丰富, 人们可以不受时空限制实现信息资源共享和进行信息交流。E-mail 是获取网络信息的强有力工具, 具有快速、简便、高效、价廉的特点。通过互联网上的邮件服务器, E-mail 可以查询信息, 调用所需文件, 起到Internet 网上其它服务工具的作用, 使人们同样能处于Internet 所提供的信息环境。     

Resources for research and learning: The databases of the Research Libraries Group

The Research Libraries Group, Inc., is a not-for-profit membership corporation dedicated to improving access to information for research and learning. To this end, RLG provides the Research Libraries Information Network database of bibliographic records, files of article citations and abstracts, and other specialized research data-bases, all of which are accessible worldwide via the Internet.     

微机仿真终端在Internet上使用和传输汉字的方法

Internet上常用的汉字编码有 GB、HZ、Big5三种。微机仿真终端利用 HZ码和 ZWDOS可直接传送中文电子邮件、参加中文新闻组的讨论、浏览 Gopher服务器和 WWW服务器上的中文信息。GB码的汉字文件和其他二进制文件经过编码后亦可通过 E- mail传送。这三种汉字编码可互相转换 ,相应的软件可利用匿名FTP从 Internet上获取。     

俄罗斯因特网与电子商务立法概述

重点介绍了1999年以来俄罗斯联邦在因特网的发展和利用、电子商务和电子文件管理领域的立法活动取得的成就，对其相关内容进行了深入分析，并探讨了信息技术和互联网发展对俄罗斯传统法律的影响。     

Science Resources on the Internet

This article focuses on resources for science reference available on the Internet. The types of resources covered include: anonymous FTP files and archives; telnel and finger sites; electronic journals and Usenet conferences; and access tools Like gophers and WAIS. Examples of hese resources are shown for: General Science, Agriculture, Biology, Health Sciences, Environmental Sciences, Physical Sciences and Mathematics. Appendices list network addresses of cited resources as well as additional sources not covered in the text.     

Techniques of Online Citation Verification in NLM Databases

This article is an exploration of techniques for identifying items in the health related literature using NLM system databases. Examples used are derived from reference desk and interlibrary loan files, but the techniques should be useful to any medical librarian who needs to verify a citation. A knowledge of NLM indexing practices and system commands is assumcd. Because of mace limitations the TOXLINE. TOXBACK74, TOXBACK65,AVLINE files have been omitted, but other bibliographic files and SERLINE are included. Tables designed for at-terminal use are presented.     

Public Online Access and Management of Documentary Resources -A New Role for Authority Files from National Bibliographic Agencies in Local Catalogs: The Experience of the Fresnes Public Library

ABSTRACT

The Fresnes public library chose to enhance its bibliographic catalog by loading the complete backfile and regular updates of the BNF authority files. This unique solution allows them to put an end to local cataloging (notably subject assignment and the maintenance of the subject index) and to considerably reduce the “cost per title cataloged” based on the formula proposed by ISO Standard 11620: Information and Documentation—Library Performance Indicators.

The authority files improve the quality of online services: they reduce the number of unsuccessful searches, reduce aberrant responses and allow for numerous OPAC possibilities; they offer library staff a valuable aid in their mission of assisting the public; they facilitate and improve the tasks of collection development and management.

The new information system anticipated for the opening of the new library in March will give the authority files a larger role. Beyond assisting the simple catalog search, the authority files will function as a search engine for the whole network. The CD-ROM and DVD-ROM readers, and a selected number of Internet sites will, in fact, link to the authority files (notably subject and corporate author files) by the authority record number, using the same headings as in the library catalog.     

Making Search Engines Notice: An Exploratory Study on Discoverability of DSpace Metadata and PDF Files

ABSTRACT

This study analyzed the search results of four main Internet search engines on three newly created digital collections at Texas Tech University Libraries, in order to assess the search engine indexing on metadata and PDF files of digital items that are published in the institutional repository. The exploratory study found that only one search engine discovered PDF files, while the others only discovered metadata. The results of the study also suggested that metadata and PDF files can supplement each other to facilitate discoverability of the digital collections on search engines, and revealed some findings that are contradictory to conclusions in previous research.     

3D Printing: Making Things at the Library

3D printers are a new technology that creates physical objects from digital files. Uses for these printers include printing models, parts, and toys. 3D printers are also being developed for medical applications, including printed bone, skin, and even complete organs. Although medical printing lags behind other uses for 3D printing, it has the potential to radically change the practice of medicine over the next decade. Falling costs for hardware have made 3D printers an inexpensive technology that libraries can offer their patrons. Medical librarians will want to be familiar with this technology, as it is sure to have wide-reaching effects on the practice of medicine.     

区域医学信息资源的开发利用--广东实例研究

区域医学信息资源的开发利用，就是对存在于区域内医学图书馆的馆藏资源，包括图书馆的现实馆藏和虚拟资源的开发和利用。文章从3个方面，并且以广东的医院图书馆作实例来探讨区域医学信息资源的开发利用：第一，区域医学信息资源的研究概述；第二，广东医学信息资源的状况与配置现状；第三，广东医学信息资源开发利用策略。     

Acquiring Food and Drug Administration Information Under the Freedom of Information Act

The Freedom of Information Act mandates that Federal agencies provide access to their files to any individual requesting information. Files available from the Food and Drug Administration are particularly valuable to medical librarians, offering information about the approval and regulation of medical devices and pharmaceuticals. This article briefly describes the approval process for drugs and devices and the corresponding records that generally are held on file at the Food and Drug Administration. Instructions for structuring a Freedom of Information Act request letter, resulting charges, and expected responses are outlined.     

Politics by Other Media

Abstract

Librarians have long relied on printed directories and ephemera stored in vertical files to provide access to national political information. The Internet seems an ideal medium for evanescent political information because it allows for continuous updating of information directly by political organizations, enables the creation of large collections of diverse materials, frees librarians from the labor of ordering and updating materials, and permits remote access. There follows a list of political Internet resources that have proved to be valuable for reference in academic and public libraries.     

服装图片元数据的核心元素

通过参阅多个通用的元数据规范,结合北京服装学院多年建设服装数字图书馆的实践经验,我们对服装图片元数据的内容结构进行了修订调整。文章对其中核心元素的各个方面作了阐述,如元素定义属性的规范、修饰词的增加、编码体系修饰词的增加、著录标识符的使用、规范档的使用等,最后提供了著录范例以帮助理解。     

文件连续体模式在医学科研档案收集中的应用

本文以医学科研项目为单位,借助文件连续体模式基本框架中的"轴"概念和体现文件保管各个要素联动的"维"概念,按照医学科研活动的自然进程规律,对医学科研档案收集工作进行了探索与阐述,构建了医院医学科研档案连续体管理模式,对保证医学科研档案的完整性、系统性及档案查考、借鉴与再利用意义重大。