“If you feel the
urge, don't be afraid to go on a wild goose chase. What
do you think wild geese are for
anyway?” -- Will Rogers (American entertainer, noted for his pithy and
homespun humor, 1879-1935)
As great as is Google® Scholar for finding useful stuff, it lacks one important
tool … the wild
card search.
In search logic, a wild card is a symbol, most often an asterisk (*)
or a question mark (?), that enables you to search for a root word and all the
words containing the root with one simple search statement.
The wild
card feature is one advantage commercial databases like Elsevier’s ScienceDirect (or
SciVerse) have over search engines like Google and Yahoo!
Here is a simple example that illustrates the point … Click Advanced Search on
the ScienceDirect (www.sciencedirect.com)
main page. Click the Journals tab,
select the Title field in the drop down, and enter the key word thiophene.
The result is about 2400 hits.
Now repeat the process, but this time enter the key word preceded with the
asterisk (*) … in other words …
*thiophene
This time the results list contains over 5900 hits, including article titles
containing the words benzothiophene, dibenzothiophene, as well as a whole
lot of other “thiophenes.”
Try a similar search with your favorite chemical compound.
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