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Peer reviewedAdamson, George W.; And Others – Journal of Chemical Documentation, 1973
A major problem in the design of screening systems for substructure searches of chemical structure files is the development of a methodology for selection of an optimal set of structural characteristics to act as screens. Distributions of several structural characteristics of the Chemical Abstracts Service Registry System are summarized. (13…
Descriptors: Chemical Bonding, Chemical Nomenclature, Computer Programs, Databases
Peer reviewedWare, Glenn O.; Park, Margaret K. – Journal of Documentation, 1973
Two statistical models for estimating search time have been developed for the CA Condensates data base using the University of Georgia Text Search System. Comparative timings between the Chemical Abstracts Service search program and the University of Georgia search program are made for the Ca Condensates data base. (5 references) (Author/NH)
Descriptors: Comparative Analysis, Computer Oriented Programs, Information Retrieval, Information Systems
O'Leary, Mick – Online, 1991
Discusses Dialog Information Service's lawsuit against the American Chemical Society (ACS) over online searching capabilities. Antitrust law is discussed, fair competition issues are raised, the user's point of view is considered, possible outcome scenarios are suggested, and a sidebar summarizes claims and counterclaims by Dialog, ACS, and…
Descriptors: Competition, Court Litigation, Database Producers, Futures (of Society)
Hawkins, Donald T. – Online, 1989
Reviews some of the models used for pricing online information services and discusses some of the implications of these pricing algorithms. Topics discussed include online versus print pricing; charges for the retrieval process; charges for the retrieved information; telecommunications charges; and the pricing policies of Chemical Abstracts…
Descriptors: Algorithms, Cost Estimates, Database Producers, Databases
Pasterczyk, Catherine E. – Database, 1990
Discusses ways in which using mathematical symbols to search online bibliographic databases in scientific and technical areas can improve search results. The representations used for Greek letters, relations, binary operators, arrows, and miscellaneous special symbols in the MathSci, Inspec, Compendex, and Chemical Abstracts databases are…
Descriptors: Bibliographic Databases, Online Searching, Relevance (Information Retrieval), Scientific and Technical Information
Linepensel, Kenneth C. – 1975
The experience of the research library of International Flavors and Fragrances using on-line data bases is described. On-line searches of Chemical Abstracts condensates and other data bases are compared with the library's previous experience with manual indexes. Two tables show the number of literature searches conducted and the time required.…
Descriptors: Databases, Information Retrieval, Information Systems, Online Systems
Peer reviewedSteensland, M. C.; Soukup, K. M. – Electronic Library, 1986
The automation of online order retrieval for Chemical Abstracts Service Document Delivery Service was accomplished by shifting to an order retrieval/dispatch process linked to a Unix network. The Unix-based environment, its terminal emulation, page-break, and user-friendly interface software, and later enhancements are reviewed. Resultant increase…
Descriptors: Automation, Computer Software, Information Retrieval, Man Machine Systems
Haines, Judith S. – Online, 1982
Describes study of chemists in the Chemistry Division, Organic Research Laboratory, Eastman Kodak Company, as end-user searchers on the DIALOG system searching primarily the "Chemical Abstracts" database. Training, level of use, online browsing, types of searches, satisfaction, costs, and value of end-user searching are highlighted.…
Descriptors: Costs, Data Collection, Databases, Graphs
Peer reviewedAnd Others; Dayton, David L. – Special Libraries, 1978
Describes the broad scope of publications and information content in both printed and computer-readable versions of Chemical Abstracts Service Source Index (CASSI), including special characteristics, growth rates, and the use of CASSI as a union list. A discussion of the uses of CASSI which are possible through searching the computer-readable file…
Descriptors: Abstracts, Chemistry, Databases, Indexes
Peer reviewedPollock, J. J.; Zamora, A. – Journal of the American Society for Information Science, 1983
The Spelling Error Detection Correction Project completed at Chemical Abstracts Service, which extracted over 50,000 misspellings from approximately 25,000,000 words of scientific and scholarly text, shows that expected incidence of misspelling is 0.2 percent, and most misspellings are "typos," 90 percent of which are unlikely to be…
Descriptors: Data Collection, Databases, Error Patterns, Online Systems
Peer reviewedChemical and Engineering News, 1982
Data on U.S. research and development (R&D) efforts are presented in chart and graph form, focusing on trends, sources of funds, performance and character of R&D, employed scientists/engineers, abstracts appearing in Chemical Abstracts, and U.S. patents. Indicates that most R&D is done by private industry with funding for development.…
Descriptors: College Science, Development, Employment Statistics, Engineering
Peer reviewedPaulson, Donald R. – Journal of Chemical Education, 2001
Describes a chemistry course titled "Writing for Chemists", a junior-level course required of all chemistry and biochemistry majors at California State University (CSU) that covers all of the sections for writing both primary and secondary papers in the chemical sciences as well as the process of literature searching in both computer databases and…
Descriptors: Chemistry, Content Area Writing, Course Descriptions, Databases
Download full textCopeland, Richard F.; And Others – 1980
The first phase of a project to design a prompting system to help semi-experienced end users to search Chemical Abstracts online, this study focused on the differences and similarities in the search approaches used by experienced users and those with less expertise. Four online searches on topics solicited from chemistry professors in small…
Descriptors: Academic Libraries, Chemistry, College Faculty, Comparative Analysis
Peer reviewedChemical and Engineering News, 1983
Discusses data on chemical research and development (R&D). Areas addressed include sources of R&D funds, R&D spending by the federal government and by industry, and sources of academic R&D funds. provides charts and tables and data on scientists/engineers, budgets, comparisons between applied/basic R&D, abstracts in chemical…
Descriptors: Abstracts, Budgets, Chemical Engineering, Chemical Industry
Peer reviewedMount, Ellis, Ed. – Science and Technology Libraries, 1989
Issues related to end-user training for scientific and technical online databases are discussed in five articles. Topics covered include instruction in the use of controlled and natural language vocabularies; a planning assessment for end-user searching; the role of the information center in industrial research; training for health care…
Descriptors: Business, Databases, Health Personnel, Information Centers
