Examples
of subject headings are:
–Library Subject Headings:
Used as the "official vocabulary" of the Libraries catalog as well as
many other library catalogs.
–Science Subject Headings:
Used to describe the content of documents in the Library at AIU as well as in
catalogs of other medical and health sciences libraries.
–Thesaurus of Psychological Index Terms:
This controlled vocabulary is used by American Psychological Association
indexers to describe the content of documents in the database. These
subject headings are sometimes called index terms or descriptors. The
library has copies of the printed volume and the thesaurus is also available
online, searchable from within the database.
Boolean
Searching
Boolean
searching allows you to group words together in an electronic database or
environment such as the World Wide Web to receive a number of different types of results. Depending how you group these word, you will receive different results.
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For example:
• By using an AND & NOT between words you
limit the search.
• By placing an OR between words it expands the
search.
• When you use OR you receive more information
because the search engine is looking for two words rather than just one word.
Truncation and Wildcards
• Truncation and
wildcards broaden your search capabilities by allowing you to retrieve multiple
spellings of a root word or word stem, such as singular and plural forms.
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• A wildcard is a
special character, such as an asterisk (*), question mark (?), or pound sign
(#), that replaces one or more letters in a word. Truncation is using a
wildcard at the end of a root word to search multiple variations of that root
word. Check a database's help section to identify what symbol is used for a
wildcard.
Phrase Searching
•
Phrase searching is when you use a string of words (instead of a single
word) to search with.
•
By using phrase searching you will retrieve fewer results
Example:
“information
literacy"
or
(information literacy)
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