The state of OA: (Record no. 9402)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02443nam a22002777a 4500 |
| 001 - CONTROL NUMBER | |
| control field | 9402 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OCLRC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260730103742.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 210411t xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | OCLRC |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Piwowar, Heather |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Priem, Jason |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lariviere, Vincent |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Alperin, Juan |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Matthias, Lisa |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Norlander, Bree |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Farley, Ashley |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | West, Jevin |
| 245 ## - TITLE STATEMENT | |
| Title | The state of OA: |
| Sub Title | a large-scale analysis of the prevalence and impact of open access articles/ |
| Statement of responsibility, etc. | Heather Piwowar., Jason Priem., Vincent Lariviere., Juan Pablo Alperin., et'al. |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Date of publication, distribution, etc. | 2018. |
| 500 ## - GENERAL NOTE | |
| General note (includes bibliographical references and index) | https://doi.org/10.7717/peerj.4375 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Despite growing interest in Open Access (OA) to scholarly literature, there is an unmet need for large-scale, up-to-date, and reproducible studies assessing the prevalence and characteristics of OA. We address this need using oaDOI, an open online service that determines OA status for 67 million articles. We use three samples, each of 100,000 articles, to investigate OA in three populations: (1) all journal articles assigned a Crossref DOI, (2) recent journal articles indexed in Web of Science, and (3) articles viewed by users of Unpaywall, an open-source browser extension that lets users find OA articles using oaDOI. We estimate that at least 28% of the scholarly literature is OA (19M in total) and that this proportion is growing, driven particularly by growth in Gold and Hybrid. The most recent year analyzed (2015) also has the highest percentage of OA (45%). Because of this growth, and the fact that readers disproportionately access newer articles, we find that Unpaywall users encounter OA quite frequently: 47% of articles they view are OA. Notably, the most common mechanism for OA is not Gold, Green, or Hybrid OA, but rather an under-discussed category we dub Bronze: articles made free-to-read on the publisher website, without an explicit Open license. We also examine the citation impact of OA articles, corroborating the so-called open-access citation advantage: accounting for age and discipline, OA articles receive 18% more citations than average, an effect driven primarily by Green and Hybrid OA. We encourage further research using the free oaDOI service, as a way to inform OA policy and practice. |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | open access, |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | large-scale analysis, |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Electronic Resources |
| Withdrawn status | Lost status | Piece physical condition (Damaged Status) | Not for loan | Home library | Current library (holdingbranch) | Date acquired | Total checkouts | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|
| Olivarez College Learning Resource Center | Olivarez College Learning Resource Center | 07/30/2026 | 07/30/2026 | 07/30/2026 | Electronic Resources |