Since the OR operator is usually used for keywords that are similar or synonymous, the more keywords you enter, the more documents you will retrieve. The Boolean NOT or AND NOT limits your search by returning only your first keyword but not the second, even if the first word appears in that document, too. Use parentheses to separate keywords when you are using more than one operator and three or more keywords. A web-based search interface to a collection of periodical databases, including summaries of articles from over 3,000 publications, with approximately half of those in full text, full image format. It contains a wide range of popular magazines and scholarly journals covering general reference, business, health, social sciences, humanities, education, and general science.
Every record includes a full citation, precise indexing, and a short abstract for easy searching.
In addition, some articles contain images, including photographs, diagrams and charts, and other illustrations. Varies by source, but generally from 1986 on. Varies by source, but generally weekly. It contains citations and lengthy abstracts of articles from 1,000 U.S. and international professional publications, academic journals, and trade magazines. A very large database covering nearly 5,000 publications, most of which are available in full text.