Interpretation

The SciFinder Scholar (SFS ) front corpse was developed by chemical substance AbstractsService (CAS ) and has been marketed to academic institutions since 1998 .1 SFS is an elegant chase interface to six eye chemical related databases : CAplus , the principal(prenominal) Chemical Abstracts literature database , CAS property register , the substance database , CASREACT , providing feeler to reactions from the journal literature and patents , CHEMLIST , the restrictive chemicals database , CHEMCATS , lean suppliers of commercially available chemicals worldwide , and the complete guinea pig depository library of medicate s (NLM ) MEDLINE database back to 1950 containing over 15 million references p The inbred language query (NLQ ) impact algorithmic rules involved in the SciFinder Scholar (SFS ) include prepositions , Boolean operators abbreviations , and automatic shortness . The vex results be obtained by open-hearted utilize of prepositions , for representative , ` commit of antibiotics to prevent diseases in cattle . SFS recognizes prepositions , does non analyze their lingual importation , and uses them to break the query into function concepts . No t cropcation symbols argon recognized . Boolean operators AND , OR , and NOT ar not treated as Boolean operators , but sooner as conversational English .

heretofore , once the NLQ algorithm identifies query concepts and performs the search , Boolean logic is used to concede the clump list of the various search results presented to the user . Parentheses arsehole only be used to particularise up to troika synonyms scattered by commas after a given terminus . An example of this syntax would be `paints (coatings ) which are fire slowdown (flame patient of , intumescent .Case is ignored . Searching ` help or ` assist generates homogeneous results . Also ignored are single and doubling quotes presumption the size and technical personality of the database , querywords are not run against a spelling retard , except for rough of the most(prenominal) common misspellings1 . Somerville , A . N . SciFinder Scholar . J . Chem . Educ . 1998 , 75 , 959 975-976...

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