There are over 200 separate topics for which the CA Selects standard interest profiles are produced. Other database producers' products of this type can be found in the Index to Standard Interest Profiles in Science and Technology . Since SDI is tailored to individual interests, the cost is high compared to other options. It is even possible to establish profiles to be searched across multiple databases, including structure databases. Another SDI feature on the STN system removes duplicate records before sending you the results.
Users can create, manage, and edit their personal profiles on the Web.
ISI's Personal Alert service pulls references from a number of the ISI databases, including Science Citation Index. It is even possible to include a relevant reference in the profile and discover what new articles have cited that reference. Reviews All of the sources in the previous section are aimed at making you aware of the existence of new primary literature as soon as possible after its publication. The reviewers sift out the best literature, write a brief summary of the significant findings of the works, and give full bibliograpic references to the primary works. Thus, in a large field, a secondary review article may include hundreds of references in a single review article.