When using a campus computer or UF Wireless, you're connected to the UF network. But for off-campus access to library-licensed e-Journals, research databases and e-resources, use either:
When you see in your search results, click for access to digital full-text material.
Search in the science literature databases for articles on your topic. Import your article citations into EndNote Basic. Use EndNote Basic to create a bibliography in the citation style, PNAS, for your paper.