University of the Ryukyus

University of the Ryukyus

The University of the Ryukyus, abbreviated to Ryūdai, is a Japanese national university in Nishihara, Okinawa, Japan. Established in 1950, it is the westernmost national university of Japan and the largest public university in Okinawa Prefecture. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for University of the Ryukyus, Japan, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

47%


Total
Publications

14K


Total Open
Publications

6.8K


Total
Citations

330K


Open Access
Percentage

47%


Total
Publications

14K


Total Open
Publications

6.8K


Total
Citations

330K

Wikipedia

Website

download

Breakdown

24% 19% 4% 53%

Publisher Open

24%

Both

19%

Other Platform Open

4%

Closed

53%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

0100200300400500600700800Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

45%OA Journal

OA Journal 45%

2.8K

Hybrid 18%

1.1K

No Guarantees 37%

2.3K

Other Platform Open

Domain 60%

2.1K

Other Internet 27%

937

Institution 24%

810

Preprint 10%

328

Public 5%

159

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
2K
DOI
Other Internet
936
University of the Ryukyus
Institution
419
Europe PMC
Domain
222
arXiv
Preprint
216
Figshare
Public
93
bioRxiv
Preprint
81
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
61
Zenodo
Public
57
Nagasaki University
Institution
44
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Data updated 18 August 2025

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