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Databases - Resources & Serv - Prevention News - Funding - Educational Mats - Conf Calendar NPIN Web Features
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Search Tips This section provides tips on performing effective searches. If you are unfamiliar with searching, these step-by-step instructions and tips will help you obtain relevant results. For descriptions of the fields, see the Field Help Text. For more assistance with searching, read the the Frequently Asked Questions.
Right-hand truncation is available in this database by using an asterisk. Using truncation enables you to search for more than one form of a word by entering a root word and placing an asterisk at the end of it. For example, if you enter the term "africa*" in the Title field, the database will search for all summaries with the root "africa" in their title.
Your results will include these titles:
The system does not understand most punctuation. If you are using any form of punctuation in your search and get an error message or no results, remove the punctuation and try your search again.
If you select "and," the database will search for summaries that have all of the words you enter.
Example: Your results will include these titles:
If you select "or," the database will search for occurrences of any of the terms you enter. Use this operator if you are searching for synonyms, such as AZT and Zidovudine.
Example:
Your results will include these titles:
Operator to Connect the Fields - and
If you select "and," the database will link all fields for which you have entered information.
Example:
Operator to Connect the Fields - or
If you select "or," the database will search for all occurrences of terms in any of the fields.
Example:
If You Find Too Little:
If You Find Too Much:
Interpreting Your Search Results
When you select Search, the database runs your search, and the results will appear on your screen. The database displays the maximum number of summaries you specified on the Search page. Summaries are displayed by number, date, and title; they are ordered by date. Click on a summary link to review its contents. Click on the check boxes in front of several summaries, then click on Display Documents to view the contents of multiple summaries on one page. To view the contents of all the listed summaries, click on the check box for Select All Listed Documents, then click on Display Documents.
A stopword is a word that you cannot use to retrieve documents. The following stopwords were chosen because they occur so frequently that they are not useful in retrieving documents. The system will ignore any of the stopwords that you use. The following is a list of stopwords in this database.
Included here is a list of frequently asked questions about the Prevention News Update Database. If you would like to suggest a FAQ for this list, send a message to us. Question: Why doesn't the Prevention News Update Database retrieve any records on my topic? Answer: It is possible that the database may not find any records for the topic you request. This might happen for several reasons:
Question: My search results gave me too many records. How can I narrow my search? Answer: To narrow your results, enter another term. You may enter this term either in the same field or in another field. Question: Does it matter if I use upper or lower case letters? Answer: No, the database does not recognize the difference between upper and lower case letters. Question: How do I know what words to use? Answer: If you think the database should have information on your topic but you are not finding any records, you may be using a term that is different from the one the database uses. Try to think of another way to phrase the concept you're looking for. Also see Refining Your Search. Question: Why don't all the fields show up for each summary? Answer: Fields that do not show up do not have data. For some summaries, the Author field does not show up because there is no author attributed to the information. The Descriptor field does not show up for summaries before May 20, 1994, because we did not assign descriptors until that time.
Prevention News Search Tips | Prevention News Field Help |
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