Proceedings of the National Academy of Sciences of the United States of America (often abbreviated PNAS) is a peer-reviewed multidisciplinary scientific journal. It is the official journal of the National Academy of Sciences, published since 1915, and publishes original research, scientific reviews, commentaries, and letters. According to Journal Citation Reports, the journal has a 2020 impact factor of 11.205.[1] PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008 to 2018.[2] In the mass media, PNAS has been described variously as "prestigious",[3][4] "sedate",[5] "renowned",[6] and "high impact".[7]
PNAS is a delayed open access journal, with an embargo period of six months that can be bypassed for an author fee (hybrid open access). Since September 2017, open access articles are published under a Creative Commons license. Since January 2019, PNAS is online-only, although print issues are available on-demand.
| Publication details | |
|---|---|
| History | 1915–present |
| Publisher | United States National Academy of Sciences (United States) |
| Frequency | Weekly |
Open access | Hybrid, delayed (after 6 months) |
Impact factor | 11.205 (2020) |
| Standard abbreviations | |
| ISO 4 | Proc. Natl. Acad. Sci. U.S.A. |
| Indexing | |
| CODEN | PNASA6 |
| ISSN | 0027-8424 (print) 1091-6490 (web) |
| Links | |