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Journals and Conferences
The atom-total of a compound may be obtained from an equation which substitutes cyclic features of structure for hydrogen atoms. This method is useful for checking a compound's molecular formula against its structural formula or systematic name. While it applies to all chemical compounds, it is of most value for compounds with complex ring structures.
The Index of Rheumatology is a newly-developed, recurring bibliography produced by the Medical Literature Analysis and Retrieval System (MEDLARS) of the National Library of Medicine. It is published semimonthly by the American Rheumatism Association. This report describes preliminary testing of MEDLARS output, modification of MEDLARS Medical Subject… (More)
The National Bureau of Standards Library recently implemented on-line bibliographic retrieval services. Methods are given to orient and aid users in availing themselves of the services. Results are presented, based on appraisal of the services by users: value to users; most used data bases; problems requiring search revision; reasons for unsatisfactory… (More)