PNAS
Journal Impact IF - Analysis · Trend · Prediction · Ranking
Journal Impact IF
2019-2020
9.412
Journal Impact IF Trend
PNAS
The 2019-2020 Journal Impact IF of PNAS is 9.412, which is just updated in 2020.
The highest Journal Impact IF of PNAS is 9.809.
The lowest Journal Impact IF of PNAS is 9.412.
The total growth rate of PNAS IF is -2.8%.
The annual growth rate of PNAS IF is -0.3%.
Journal Impact IF Ranking
| Subcategory | Quartile | Rank | Percentile |
|---|---|---|---|
| Multidisciplinary | Q1 | 4/111 |
Multidisciplinary 96% |
· In the Multidisciplinary research field, the Quartile of PNAS is Q1. PNAS has been ranked #4 over 111 related journals in the Multidisciplinary research category. The ranking percentile of PNAS is around 96% in the field of Multidisciplinary.
PNAS Key Factor Analysis
Related Journals
International Collaboration Trend
Cited Documents Trend
Journal Impact IF History
| Year | Journal Impact IF |
|---|---|
| Year | Journal Impact IF |
| 2019-2020 | 9.412 |
| 2018-2019 | 9.58 |
| 2017-2018 | 9.504 |
| 2016-2017 | 9.661 |
| 2015-2016 | 9.423 |
| 2014-2015 | 9.674 |
| 2013-2014 | 9.809 |
| 2012-2013 | 9.737 |
| 2011-2012 | 9.681 |
· The 2019-2020 Journal Impact IF of PNAS is 9.412
PNAS Key Factor Analysis
· The 2018-2019 Journal Impact IF of PNAS is 9.58
PNAS Key Factor Analysis
· The 2017-2018 Journal Impact IF of PNAS is 9.504
PNAS Key Factor Analysis
· The 2016-2017 Journal Impact IF of PNAS is 9.661
PNAS Key Factor Analysis
· The 2015-2016 Journal Impact IF of PNAS is 9.423
PNAS Key Factor Analysis
· The 2014-2015 Journal Impact IF of PNAS is 9.674
PNAS Key Factor Analysis
· The 2013-2014 Journal Impact IF of PNAS is 9.809
PNAS Key Factor Analysis
· The 2012-2013 Journal Impact IF of PNAS is 9.737
PNAS Key Factor Analysis
· The 2011-2012 Journal Impact IF of PNAS is 9.681
PNAS Key Factor Analysis
About
PNAS publishes research reports, Brief Reports, Letters, Front Matter magazine content, Commentaries, Perspectives, and Colloquium Papers. In accordance with the guiding principles established by George Ellery Hale in 1914, PNAS also publishes brief first announcements of NAS members' and foreign associates' more important contributions to research and of work that appears to a member to be of particular importance. All submissions are evaluated by a member of the Editorial Board prior to acceptance. PNAS is a general science journal, and all papers should be intelligible to a broad scientific audience.
The ISSN of PNAS is
0027-8424
.
An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic.
PNAS Key Factor Analysis
The ISSN (Online) of PNAS is
1091-6490
.
An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic.
PNAS Key Factor Analysis
PNAS is published by
National Academy of Sciences
.
PNAS Key Factor Analysis
PNAS publishes reports
Weekly
.
PNAS Key Factor Analysis
The Publication History of PNAS covers
1945-1951, 1961-2020
.
PNAS Key Factor Analysis
PNAS is Subscription-based (non-OA) Journal. Publishers own the rights to the articles in their journals. Anyone who wants to read the articles should pay by individual or institution to access the articles. Anyone who wants to use the articles in any way must obtain permission from the publishers.
PNAS Key Factor Analysis
There is no publication fee for submiting manuscript to PNAS. PNAS is Subscription-based (non-OA) Journal. Publishers own the rights to the articles in their journals. Anyone who wants to read the articles should pay by individual or institution to access the articles.
PNAS Key Factor Analysis
The language of PNAS is
English
.
PNAS Key Factor Analysis
The publisher of PNAS is
National Academy of Sciences
,
which locates in
United States
.
PNAS Key Factor Analysis
Popular Journals
What is Impact Factor?
The impact factor (IF) is frequently used as an indicator of the importance of a journal to its field. It was first introduced by Eugene Garfield, the founder of the Institute for Scientific Information. Although IF is widely used by institutions and clinicians, people have widespread misconception regarding the method for calculating the journal IF, its significance and how it can be utilized. The IF of a journal is not associated to the factors like quality of peer review process and quality of content of the journal, but is a measure that reflects the average number of citations to articles published in journals, books, thesis, project reports, newspapers, conference/seminar proceedings, documents published in internet, notes, and any other approved documents.
Impact factor is commonly used to evaluate the relative importance of a journal within its field and to measure the frequency with which the “average article” in a journal has been cited in a particular time period. Journal which publishes more review articles will get highest IFs. Journals with higher IFs believed to be more important than those with lower ones. According to Eugene Garfield “impact simply reflects the ability of the journals and editors to attract the best paper available.” Journal which publishes more review articles will get maximum IFs. The Journal Impact of an academic journal is a scientometric Metric that reflects the yearly average number of citations that recent articles published in a given journal received. It is frequently used as a Metric for the relative importance of a journal within its field; journals with higher Journal Impact are often deemed to be more important than those with lower ones. The PNAS Journal Impact IF measures the average number of citations received in a particular year (2020) by papers published in the PNAS during the two preceding years (2018-2019). Note that 2020 Journal Impact are reported in 2021; they cannot be calculated until all of the 2020 publications have been processed by the indexing agency. In addition to the 2-year Journal Impact, the 3-year Journal Impact can provide further insights and factors into the impact of PNAS.