The techniques of search strategy design for substructure searches of the Wiswesser Line Notation (WLN) file are described in detail. The Index Chemicus Registry System'' was used. (13 references) (Author/SM)

The experiences in developing current awareness services for selective dissemination of information from Chemical Abstracts'' Condensates data base are described. File standardization, the weighted-term method of searching, and the algorithm used to perform the search on the CDC 6600 computer and a user survey are discussed. (2 references)…

A computer system, named CORA, has been devised for coding chemical structures by fragmentation elements. It has been used to encode Markush formulas in patents according to the Ring codes used in the Ringdoc and Pestdoc services and results in an easy, speedy, reliable and inexpensive method. (4 references) (Author)

The set reduction algorithm is based on set theory and Boolean algebra rather than the graph-theoretic approach. Time trials with a small file of organic chemical structures indicate that the algorithm can be economically used for substructure (or complete structure) sequential searches on a file containing 30,000-50,000 computer-coded structures.…

Reports results of a survey made to determine the attitudes of secondary teachers, secretaries, and administrators on the use of a new grade collecting procedure developed by a local department of information services. (Author)

Applying to air quality data, procedures are presented for site characterization, method identification, data validation, and data summarization that are being established by the Environmental Protection Agency for the National Aerometric Data Bank. Topics review screening criteria, atypical results (data outliers), data accuracy and precision,…

The first part of the paper deals with statute law and describes the inadequacy of the official Statutes Revised' system for maintaining up-to-date records. There is a similar lack of official retrieval tools for tracing information on case law. The problems of factual information retrieval are dealt with briefly. (Author/NH)

Information and documentation have constituted one of the more fruitful fields for early applications of computer typesetting. This review pays particular attention to the reasons this is so, and to some of the major systems now in operation. (31 references) (Author/NH)

This feature section presents the views of eight authors on various components of the business curriculum. (MU)

Cost-cutting ideas to help a district live less painfully with an austerity budget. (Author)

A formula is given that enables one to determine the parameters for amortizing an information system within a year. The formula is illustrated with three mechanized information systems for patents. The most critical parameter is shown to be indexing time. (7 references) (Author/NH)

In viewing the library as "a system of complex, interrelated functions, this article is intended to "aid those unfamiliar with libraries to evaluate the degree of automation that has been accomplished and to appreciate the enormous amount of work that remains to be done before the potential of the computer is fully realized in libraries. …

Study investigates applicability to educational planning by developing a computerized interview capable of implementation by schools possessing a medium sized third generation computer. Results indicate that computers can relieve counselors of essentially clerical chores so they can devote more time to intensive student counseling. Sample…