Publisher John Wiley & Sons, Inc., US, has announced a continued increase in the proportion of its journal titles indexed in the Thomson Reuters 2012 Journal Citation Reports (JCR), with 1,192 (about 77 percent) titles now indexed, up from 1,156 in the 2011 JCR. Wiley titles now account for the largest share of journals in 50 categories.
In the 2012 JCR, the number of Wiley journals with a top category rank increased by 19 percent and the number of Wiley titles indexed in the top ten of their categories also increased by 11 percent. Of publishers with more than 100 journals indexed in the 2012 JCR, Wiley saw the largest proportion of titles (close to 60 percent) increasing in Impact Factor (IF).
One of the largest changes this year is the partnership between Wiley and the American Geophysical Union, whose portfolio of influential geoscience and geophysics titles is responsible for 6 percent of citations to journals published by Wiley in the 2012 JCR. Of these titles, Journal of Advances in Modeling Earth Systems entered the Meteorology & Atmospheric Sciences category in the top ten, with an IF of 4.117.
Other success stories include the first appearance of Advanced Energy Materials, entering the JCR with an Impact Factor of 10.043 – putting it in the top ten of all five of its JCR subject categories. Advanced Energy Materials joins the successful Advanced Materials series, which includes titles such as Advanced Functional Materials (9.765) and Advanced Materials (14.829). Collectively, these journals appear in the top ten of a JCR subject category 15 times, asserting the traction of this journal series within the scientific community.
This year also sees a continuing increase in IF of CA – A Cancer Journal for Clinicians, published on behalf of The American Cancer Society. Last year, this journal became the first to achieve an IF over 100 and has this year broken its own record with an IF of 153.459 at 0 percent self-citation, a 51 percent increase from its 2011 IF. The Impact Factors of its two sister titles, Cancer (5.201) and Cancer Cytopathology (4.434) also increased.
The WIRES (Wiley Interdisciplinary Reviews) portfolio has continued to increase in strength, with seven WIRES titles now indexed in the JCR, three of which received their first IF this year.
Impact factors are a metric that reflect the frequency that peer-reviewed journals are cited by researchers, and are often used as a tool for evaluating a journal's quality.
