Journal Citation Reports has released 2009 data of Journals Impact Factor. This year report covers more than 7000 journals around the world. Some definitions should be known before taking a look at.
- 5-Year Journal Impact Factor is the average number of times articles from a journal published in the past five years have been cited in the JCR year. For journals in subjects where citation activity continues to rise through several years, this metric allows more of their total citation activity to be included in a critical performance metric.
- Eigenfactor™ Metrics, comprising the Eigenfactor™ Score and Article Influence™ Score, use JCR citation data to assess the influence of a journal in relation to other journals. These metrics, based on five years of citation activity, consider not just the count of citations but the structure of the citation network.Eigenfactor Metrics are available only for JCR years 2007 and later. More information…
- Journal Self Cites provides analyses of journal self citations and their contribution to the Journal Impact Factor calculation.
- Rank-in-Category reveals the ranking of a journal in its subject categories based on the Journal Impact Factor. An accompanying Impact Factor box plotdepicts the distribution of Impact Factors for all journals in a category. More information…
Here are 10 top journals of the report in terms of the highest impact factor
Mark | Rank | Abbreviated Journal Title (linked to journal information) |
ISSN | JCR Data | EigenfactorTM Metrics | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Total Cites | Impact Factor |
5-Year Impact Factor |
Immediacy Index |
Articles | Cited Half-life |
EigenfactorTM Score |
Article InfluenceTM Score |
||||
1 | CA-CANCER J CLIN | 0007-9235 | 8528 | 87.925 | 60.000 | 8.304 | 23 | 3.7 | 0.04227 | 20.887 | |
2 | ACTA CRYSTALLOGR A | 0108-7673 | 14394 | 49.926 | 20.635 | 0.438 | 48 | >10.0 | 0.04597 | 6.995 | |
3 | NEW ENGL J MED | 0028-4793 | 216752 | 47.050 | 51.410 | 14.557 | 352 | 7.5 | 0.67401 | 19.870 | |
4 | NAT REV MOL CELL BIO | 1471-0072 | 24057 | 42.198 | 38.260 | 6.307 | 75 | 4.4 | 0.19100 | 22.008 | |
5 | ANNU REV IMMUNOL | 0732-0582 | 15517 | 37.902 | 41.485 | 14.792 | 24 | 7.6 | 0.05977 | 21.382 | |
6 | PHYSIOL REV | 0031-9333 | 19371 | 37.726 | 37.838 | 4.219 | 32 | 8.3 | 0.05731 | 15.879 | |
7 | CHEM REV | 0009-2665 | 80350 | 35.957 | 34.284 | 3.978 | 178 | 8.4 | 0.20940 | 12.137 | |
8 | NATURE | 0028-0836 | 483039 | 34.480 | 32.906 | 8.209 | 866 | 8.9 | 1.74951 | 18.054 | |
9 | NAT GENET | 1061-4036 | 69988 | 34.284 | 29.768 | 8.411 | 209 | 6.6 | 0.33311 | 15.608 | |
10 | REV MOD PHYS | 0034-6861 | 27005 | 33.145 | 41.344 | 16.522 | 46 | >10.0 | 0.08135 | 24.372 |
(Source: http://admin-apps.isiknowledge.com/JCR/JCR)
– For more details about other journals, it can be referred and downloaded by PDF file here JCR-2009-Impact-Factor
– This is the list of new journals with first impact factor released by Thomson Reuters 09jcrnewtitles
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