Steady Impact Factor Growth for MDPI Open Access Journals
MDPI AG, Postfach, CH – 4005 Basel, Switzerland
Molecules 2012, 17(9), 10971-10973; https://doi.org/10.3390/molecules170910971
Submission received: 5 September 2012
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Accepted: 5 September 2012
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Published: 12 September 2012
For the past three years MDPI has announced the newly released impact factors for its Open Access journals by the means of an annual editorial [1,2,3]. In 2012 we are—once again—pleased to report that the growth of the impact factors of MDPI’s Open Access journals continues. This year’s edition of the Journal Citation Reports (JCR), which is published annually by Thomson Reuters, includes 10 journals published by MDPI, including three that have received their first official Impact Factors—International Journal of Environmental Research and Public Health (IJERPH), Materials and Nutrients. Table 1 reports the latest Impact Factors for 2011. Figure 1 graphically depicts the evolution of the Impact Factors for four MDPI open access journals that have received Impact Factors in the past. Table 2 reports the ranking of the MDPI journals within the subject categories of the Science Citation Index Expanded (SCIE).
Table 1.
Impact Factors of ten MDPI journals (adapted from the Journal Citation Reports (JCR), Edition 2011, Copyright 2012 by Thomson Reuters).
| 2007 | 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|---|
| Energies | 1.130 | 1.865 | |||
| Entropy | 1.109 | 1.183 | |||
| IJERPH | 1.605 | ||||
| IJMS | 0.750 | 0.978 | 1.387 | 2.279 | 2.598 |
| Marine Drugs | 1.103 | 1.200 | 2.863 | 3.471 | 3.854 |
| Materials | 1.677 | ||||
| Molecules | 0.940 | 1.252 | 1.738 | 1.988 | 2.386 |
| Nutrients | 0.676 | ||||
| Sensors | 1.573 | 1.870 | 1.821 | 1.771 | 1.739 |
| Viruses | 1.000 | 1.500 |
Figure 1.
Evolution of the Impact Factors for four MDPI open access journals (adapted from the Journal Citation Reports (JCR), Edition 2011, Copyright 2012 by Thomson Reuters).
Figure 1.
Evolution of the Impact Factors for four MDPI open access journals (adapted from the Journal Citation Reports (JCR), Edition 2011, Copyright 2012 by Thomson Reuters).
Table 2.
Rankings of MDPI open access journals by subject categories (adapted from the Journal Citation Reports (JCR), Edition 2011, Copyright 2012 by Thomson Reuters).
| Journal | Rank | Category |
|---|---|---|
| Energies | 35/80 | Energy & Fuels |
| Entropy | 36/83 | Physics, Multidisciplinary |
| IJERPH | 103/204 | Environmental Sciences |
| IJMS | 44/150 | Chemistry, Multidisciplinary |
| Marine Drugs | 7/58 | Chemistry, Medicinal |
| Materials | 85/230 | Materials Science, Multidisciplinary |
| Molecules | 26/56 | Chemistry, Organic |
| Nutrients | 64/72 | Nutrition & Dietetics |
| Sensors | 14/58 | Instruments & Instrumentation |
| 18/27 | Electrochemistry | |
| 41/37 | Chemistry, Analytical | |
| Viruses | 28/32 | Virology |
References
- Lin, S.-K. Full Open Access Journals Have Increased Impact Factors. Molecules 2009, 14, 2254–2255. [Google Scholar] [CrossRef]
- Rordorf, D. Continued Growth of the Impact Factors of MDPI Open Access Journals. Molecules 2010, 15, 4450–4451. [Google Scholar] [CrossRef]
- Rordorf, D. Sustained Growth of the Impact Factors of MDPI Open Access Journals. Molecules 2012, 17, 1354–1356. [Google Scholar] [CrossRef]
- Lin, S.-K. Full Open Access Publishing Policy Imposed in 2007: Molecules Publishes Many More Papers This Year — More than 2000 Pages Published up to Issue 8. Molecules 2007, 12, 2001–2002. [Google Scholar] [CrossRef]
- Lin, S.-K. Non-Open Access and Its Adverse Impact on Molecules. Molecules 2007, 12, 1436–1437. [Google Scholar] [CrossRef]
© 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
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Thiesen, A. Steady Impact Factor Growth for MDPI Open Access Journals. Molecules 2012, 17, 10971-10973. https://doi.org/10.3390/molecules170910971
AMA Style
Thiesen A. Steady Impact Factor Growth for MDPI Open Access Journals. Molecules. 2012; 17(9):10971-10973. https://doi.org/10.3390/molecules170910971
Chicago/Turabian StyleThiesen, Alexander. 2012. "Steady Impact Factor Growth for MDPI Open Access Journals" Molecules 17, no. 9: 10971-10973. https://doi.org/10.3390/molecules170910971
