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|CHEM 2/3/491: Introduction to Chemical Research- Clontz  

Last Updated: Oct 31, 2017 URL: http://libguides.wingate.edu/chem291clontz Print Guide RSS Updates

Building Searches Print Page
  Search: 
 
 

Hit or Miss V. Phrase Searching

 Hit or Miss Search

Bad Search: stink bug chemical composition

The result is relevant, but the search terms are nowhere near each other, which doesn't make this result as relevant as it could be.


 Phrase Searching " "

 

Phrase Search: "stink bug" "chemical composition"

This time our paired keywords appear next to eacher other.

<image citation: reactiongifs.com/wp-content/uploads/2013/08/air-quotes.gif >

 

Boolean Operators

Or

Search: "Megacopta cribraria" OR "kudzu beetle" OR "lablab bug"
Results contain all of the sources that contain ANY of those search terms.


And, +

Search: "Kudzu Bug" AND "Chemicals"

Results contain sources with BOTH of those terms


Not, -

Search: "Kudzu Bug" AND Chemicals NOT Pestacides
Results contain sources containing the term Kudzu Bug Chemicals  WITHOUT including articles containing mentions of pesticides.

 

Let's try these out.

 

Truncation and Wild Cards

Truncation

Truncation symbols, typically the * or ?, allow for you to search for variations of a root word.

Search:  chem*
=

chem(ical)
chem(ically)
chem(igraphy)
chem(ism)
chem(ist)
chem(obiotic)
chem(oarrractants)

At least 7 searches in 1!


 Wildcards

Wildcards, typically the #, look for all possible variations of a letter in a single position within a word.


Search: Wom#n
=
Woman, Women, Womyn, Wom!n, Wom@n

 

 

Sample Search Strategy

Search #Searched forResults+/- Hits
1 Megacopta cribraria 172
2 "Megacopta cribraria" 172 0
3 "Megacopta cribraria" AND chemical* 6 -166
4 "Megacopta cribraria" AND (chemical* OR compound* OR defens*) 6 0
5 ("Megacopta cribraria"OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid")  AND (chemical* OR compound* OR defens*) 9 +3
6 ("Megacopta cribraria" OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid" OR "shield bug") AND (chemical* OR compound* OR defens*) 62 +53
7 ("Megacopta cribraria" OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid" OR "shield bug")  AND ( chemical* OR compound* OR defens*)  NOT "Parastrachia japonensis" 42 -20
8  ("Megacopta cribraria" OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid" OR "shield bug" OR "glubular stink bug" OR "stink bug") AND (chemical* OR compound* OR defens*)  NOT "Parastrachia japonensis" 685 +643
9 ("Megacopta cribraria" OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid" OR "shield bug" OR "glubular stink bug" OR "stink bug") AND (chemical* OR compound* OR defens*) NOT "Parastrachia japonensis"   +Peer Reviewed 343 -342
10 ("Megacopta cribraria" OR "kudzu bug" OR "kudzu beetle" OR "lablab bug" OR "Bean plataspid" OR "shield bug" OR "glubular stink bug" OR "stink bug") AND (chemical* OR compound* OR defens*) NOT "Parastrachia japonensis"   +Peer Reviewed +Full-Text 307 -36

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