Interpretation

The SciFinder Scholar (SFS ) front organisation was developed by chemic AbstractsService (CAS ) and has been marketed to academic institutions since 1998 .1 SFS is an elegant see interface to six tenderness chemical related databases : CAplus , the main Chemical Abstracts literature database , CAS property register , the substance database , CASREACT , providing retrieve to reactions from the journal literature and patents , CHEMLIST , the regulative chemicals database , CHEMCATS , lean suppliers of commercially purchasable chemicals worldwide , and the complete field of study depository library of music s (NLM ) MEDLINE database back to 1950 containing over 15 million references p The inborn language interrogative sentence (NLQ ) touch algorithmic rules involved in the SciFinder Scholar (SFS ) include prepositions , Boolean operators abbreviations , and automatic shortness . The shoot results ar obtained by detached utilize of prepositions , for specimen , ` aim of antibiotics to prevent diseases in cow . SFS recognizes prepositions , does non analyze their lingual nitty-gritty , and uses them to break the query into office concepts . No t wearcation symbols be recognized . Boolean operators AND , OR , and NOT atomic number 18 non treated as Boolean operators , but sooner as conversational English .

moreover , once the NLQ algorithm identifies query concepts and performs the search , Boolean logical system is used to concede the separate list of the various search results presented to the user . Parentheses arsehole tho be used to ready up to troika synonyms unaffectionate by commas after a given terminus . An example of this syntax would be `paints (coatings ) which are fire slowdown (flame revolting , intumescent .Case is ignored . Searching ` support or ` assist generates homogeneous results . Also ignored are single and doubling quotes give the size and technical nature of the database , querywords are not run against a spelling determine , except for rough of the approximately common misspellings1 . Somerville , A . N . SciFinder Scholar . J . Chem . Educ . 1998 , 75 , 959 975-976...

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