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Use the Thesaurus in the Food Science Files?
TOPIC: The food science files on Dialog cover the range of technical topics including analytical techniques, automation, chemistry, microbiology, patents, safety and consumption. Many of these databases give you the added bonus of highly controlled indexing, with thesauri, section headings and the freedom to use natural language. Food Science and Technology Abstracts (File 51) continually expands its coverage, adding such new topics as obesity, diet regimes, nutritional management and recently, pet foods. Consider also FOODLINE®: SCIENCE (File 53), AGRICOLA (File 10) and CAB ABSTRACTS (File 50).
Much has been written about the power of antioxidants in chocolate. To find authoritative articles confirming or denying this statement start by using the thesaurus in File 51 to find cocoa, chocolate and related terms both in the Descriptor field (/DE) and as a Section Heading (SH=).
Note: The use of EXPAND demonstrates effective use of the interactive thesaurus. This search can be done in a quick, but less precise way by entering the strategy SELECT ((COCOA! OR CHOCOLATE)/DE,TI OR SH=COCOA?) AND ANTIOXID?/TI,DE.
Note: File 10 has no thesaurus. Limit the terms to the title (/TI), descriptor (/DE) and identifier (/ID). Although File 50 has a thesaurus, there are no narrower terms for this search so terms can also be limited to title, descriptor and identifier.
COMMAND SUMMARY
BEGIN 51
VISUAL EXPAND COCOA
Check term and click the button for Related
Check cocoa and check the Explode in Selection box and click Select
VISUAL EXPAND (CHOCOLATE)
Check boxes for chocolate and chocolate products.
Click Select.
VISUAL EXPAND SH=COCOA
Check appropriate boxes to the left of the terms and click Select.
DISPLAY SETS
SELECT S1:S3
SELECT ANTIOXID?/TI,DE
SELECT S4 AND S5
TYPE S6/8/1-5
Click Links > Display >Full Record
HOW TO...
1. BEGIN File 51 to search Food Science and Technology Database.
2. VISUAL EXPAND cocoa. The list of terms shows that cocoa has 10 related terms.
3. Check the box to the left of cocoa and click Related to see the list of related terms for cocoa.
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Cocoa has two narrower terms: cocoa beans and cocoa industry. Note that Chocolate is a Related term.
The explode feature will pick up Narrower terms, but not Related terms.
4. To retrieve all the narrower terms, check cocoa and check the box next to Use EXPLODE in selection. Click Select. |
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5. VISUAL EXPAND the term chocolate within parentheses to bypass the first expanded list. From this list decide which terms to include, check those boxes and click Select.
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6. VISUAL EXPAND cocoa as a Section Heading (SH=).
7. Check the appropriate boxes to the left of the terms. Click Select.
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8. DISPLAY SETS to review the search history.
9. SELECT the three sets together using a colon to OR the concepts. The colon acts as a range.
10. Enter the final concept. Restrict the term to the Title (/TI) OR the Descriptor (/DE) fields.
11. SELECT Sets S4 and S5. |
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12. TYPE a few records of Set 6 (S6) in Format 8 to see title, descriptors and publication years.
You can also click Links at the top of the records to display the full record.
13. Click Links > Display > Type Full Record.
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For searchers with electronic journal subscriptions Dialog provides links to the fulltext. See http://www.dialog.com/
products/ejournal/ for details on how to get set up for eLinks on Dialog.
Note: Part of this record is omitted from the display. |
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RELATED HOW DO I...? SOLUTIONS
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