This overview of 47 online sources for physics information available in the United States--including sub-field databases, transdisciplinary databases, and multidisciplinary databases-- notes content, print source, language, time coverage, and databank. Two discipline-specific databases (SPIN and PHYSICS BRIEFS) are also discussed. (EJS)

Reports on investments in the United States (including database activities) by four Dutch publishing companies--Elsevier-NDU, VNU, Kluwer, Wolters Samsom Group. An analysis of the reasons behind these investments, the solidness of the companies, the approach to the U.S. information market, and the knowledge transfer to Europe are highlighted. (EJS)

Discusses database design concept termed "normalization" (process replacing associations between data with associations in two-dimensional tabular form) which results in formation of relational databases (they are to computers what dictionaries are to spoken languages). Applications of the database in serials control and complex systems…

Examines the policies, services, and coverage of competing commercial databases which offer indexing of newspapers and magazines. (CWM)

Introduces and defines the concept of online information databases and discusses how these information sources have been marketed in the past. Argues that their wealth is underused by managers and identifies databases that provide valuable management information. Identifies new trends in the industry that will help managers exploit this tool. (CH)

Enumerates principal management objectives of database management systems (data independence, quality, security, multiuser access, central control) and criteria for comparison (response time, size, flexibility, other features). Conventional database management systems, relational databases, and database machines used for backend processing are…

This initial article in series of three discusses barriers inhibiting use of current online retrieval systems by novice users and notes reasons for front end and gateway online retrieval systems. Definitions, front end features, user interface, location (personal computer, host mainframe), evaluation, and strengths and weaknesses are covered. (16…

Presents survey of two groups of databases covering patent literature: patent literature only and general literature that includes patents relevant to subject area of database. Description of databases and comparison tables for patent and general databases (cost, country coverage, years covered, update frequency, file size, and searchable data…

Reports of two experimental studies of uses of citing statements to augment full-text information retrieval of biomedical papers indicate that 78 percent of the words in computer-recognized citing statements were correctly attributable to corresponding cited papers, and computer procedures missed four percent of the words in the actual statements.…

This paper discusses examples of searching vocabularies, i.e., lists of terms which have been prepared with the online searcher, rather than the indexer, in mind. These lists are categorized as: enhanced thesauri or subject heading lists, synonym listings, index term listings, and merged vocabularies. Eight references are provided. (EJS)

Compares two major types of electronic mail systems--node-to-node networks (messages are sent directly from one terminal to another with functions handled locally at each node) and computer based message systems (terminals communicate directly with host computer using access to functions of large computer). Information sources are noted. (EJS)

Includes an evaluation of turnkey circulation systems used to support online catalogs (Richard Boss), results of a survey to determine user attitudes toward online catalogs (Kenneth Dowlin), a description of Ohio State University's library control system (Susan Miller), and a profile of a user-designed subject retrieval system (Kaske and Sanders).…

The three papers presented discuss the components of the pricing structure for online service vendors (Roger Summit); describe an information system designed to provide agricultural weather data to farmers (Lehnert and Scott); and explore the impact of information delivery systems for the home (Mark Plakias). (FM)

Notes advantages and disadvantages of the DIALOG Predicasts files and provides instruction in their use. (RAA)

Describes two types of online vendor gateways--front-end buffers and host-to-host links. The potential threats and opportunities of gateways to database owners, online vendors, and users are identified, and a code of practice developed by the National Federation of Abstracting and Information Services is presented. (CLB)