Describes PCBIS, a database program for MS-DOS microcomputers that features a utility for automatically converting online public access catalog search results stored as text files into structured database files that can be searched, sorted, edited, and printed. Topics covered include the general features of the program, record structure, record…

The first of two articles describes ArchiText, a software package that allows the use of maps and multipaned windows within hypertext systems. The second describes version 2.0 of Guide, a hypertext-type program designed to be used on IBM and IBM compatible microcomputers. (CLB)

Proposes the creation of a form of bibliographic access to contemporary Latin American literature and culture that could help to overcome the serious deficiencies inherent in the resources that are currently available to researchers. (CB)

Describes several databases relevant to the education field, including "PsychINFO,""Sociological Abstracts,""Congressional Information Service," and the ERIC (Educational Resources Information Center) system, the most widely used information source. Explains the "Current Index to Journals in Education"…

Examines the function of an authority file and the application of authority control to microcomputer-based library databases. Capabilities of relational database management systems which allow for an authority control system on the microcomputer level are noted. (10 references) (MES)

Proposes a cost/benefit model coupled with a decision tree for determining normal forms, which are used in information systems development processes to group data into well-refined structures. The three primary variables that impact the benefits and costs of normalization (reduced anomalies, storage requirements, and transaction response times)…

Discussion of Internet Gopher databases highlights the Gopher developed for AECT (Association for Educational Communications and Technology). Highlights include access information; guide to the AECT Gopher; access statistics, including international contacts; and future plans. (LRW)

Highlights considerations in developing databases of nursing student records. Discusses flat-file and relational databases, planning issues, college information needs, and staff training. (SK)

Discusses methods of evaluating commercial online databases and provides examples that illustrate their hidden dimensions. Topics addressed include size, including the number of records or the number of titles; the number of years covered; and the frequency of updates. Comparisons of Readers' Guide Abstracts and Magazine Article Summaries are…

Examines and reviews the ability of various software packages and database systems to recognize and process chemical structures generated by chemical drawing packages, especially the ability of relational database management systems to recognize and process chemical structures from a variety of sources. The need for better standard representations…

Reviews four key Internet sites that offer environmental health research data, grant programs, environmental education resources, networking, and other environmental information. Provides addresses and brief descriptions of the resources. Discusses methods for making queries. (LZ)

Describes techniques used for information retrieval from free-text or document databases and presents a new approach based on signature files, or representations of documents, called the Map Array Signature (MAS) method. False drops are discussed, and results of experiments are compared to Robert's Superimposed Coding method. (20 references) (LRW)

Explains sublanguages in restricted domains in natural language processing and describes methods of comparing sublanguages through Case Hierarchy representation. Highlights include case grammar representations of natural language; case systems of sublanguages; sublanguage comparisons, including matching relationships and mapping relationships; and…

Reports on the development of an NLP (natural language processing) component for processing the free-text comments on life insurance applications for evaluation by an underwriting expert system. A sublanguage grammar approach with strong reliance on semantic word classes is described. Highlights include lexical analysis, adjacency analysis, and…

Provides guidelines on using two national networks, BITNET and the Internet. The discussion covers electronic mail, bulletin boards, collections of public files, downloading files, logging into remote systems over the Internet, online catalogs and local databases on the Internet, and future applications. (2 references) (MES)