University of the Ryukyus

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Short name

Ryūdai

Country, city

Japan, Okinawa

02z1n9q24

Organization website

Publications

16 302

Citations

278 816

h-index

168

Top-3 journals

Orthopedics & Traumatology (245 publications)

Journal of the Physical Society of Japan (239 publications)

Scientific Reports (180 publications)

Top-3 organizations

University of Tokyo (1140 publications)

Kagoshima University (704 publications)

Kyoto University (700 publications)

Top-3 foreign organizations

National Taiwan University (91 publications)

National University of Singapore (89 publications)

James Cook University (76 publications)

Most cited in 5 years

Found

Publication title

Publisher

Journal

Countries

Found

Since 1964

Total publications

16302

Total citations

278816

Citations per publication

17.1

Average publications per year

258.76

Average authors per publication

6.72

h-index

168

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

Top-30

Fields of science

	500 1000 1500 2000 2500
General Medicine	General Medicine, 2128, 13.05% General Medicine 2128 publications, 13.05%
Ecology, Evolution, Behavior and Systematics	Ecology, Evolution, Behavior and Systematics, 1171, 7.18% Ecology, Evolution, Behavior and Systematics 1171 publications, 7.18%
Biochemistry	Biochemistry, 757, 4.64% Biochemistry 757 publications, 4.64%
Molecular Biology	Molecular Biology, 703, 4.31% Molecular Biology 703 publications, 4.31%
Aquatic Science	Aquatic Science, 686, 4.21% Aquatic Science 686 publications, 4.21%
Animal Science and Zoology	Animal Science and Zoology, 599, 3.67% Animal Science and Zoology 599 publications, 3.67%
General Physics and Astronomy	General Physics and Astronomy, 545, 3.34% General Physics and Astronomy 545 publications, 3.34%
Genetics	Genetics, 543, 3.33% Genetics 543 publications, 3.33%
Oncology	Oncology, 498, 3.05% Oncology 498 publications, 3.05%
Infectious Diseases	Infectious Diseases, 494, 3.03% Infectious Diseases 494 publications, 3.03%
Electrical and Electronic Engineering	Electrical and Electronic Engineering, 479, 2.94% Electrical and Electronic Engineering 479 publications, 2.94%
Immunology	Immunology, 447, 2.74% Immunology 447 publications, 2.74%
Plant Science	Plant Science, 427, 2.62% Plant Science 427 publications, 2.62%
Cell Biology	Cell Biology, 420, 2.58% Cell Biology 420 publications, 2.58%
Cancer Research	Cancer Research, 382, 2.34% Cancer Research 382 publications, 2.34%
Physiology	Physiology, 380, 2.33% Physiology 380 publications, 2.33%
Cardiology and Cardiovascular Medicine	Cardiology and Cardiovascular Medicine, 359, 2.2% Cardiology and Cardiovascular Medicine 359 publications, 2.2%
Pharmacology	Pharmacology, 354, 2.17% Pharmacology 354 publications, 2.17%
Condensed Matter Physics	Condensed Matter Physics, 347, 2.13% Condensed Matter Physics 347 publications, 2.13%
Multidisciplinary	Multidisciplinary, 343, 2.1% Multidisciplinary 343 publications, 2.1%
Ecology	Ecology, 339, 2.08% Ecology 339 publications, 2.08%
Microbiology	Microbiology, 321, 1.97% Microbiology 321 publications, 1.97%
General Chemistry	General Chemistry, 316, 1.94% General Chemistry 316 publications, 1.94%
Organic Chemistry	Organic Chemistry, 299, 1.83% Organic Chemistry 299 publications, 1.83%
General Biochemistry, Genetics and Molecular Biology	General Biochemistry, Genetics and Molecular Biology, 295, 1.81% General Biochemistry, Genetics and Molecular Biology 295 publications, 1.81%
Virology	Virology, 281, 1.72% Virology 281 publications, 1.72%
Oceanography	Oceanography, 276, 1.69% Oceanography 276 publications, 1.69%
Internal Medicine	Internal Medicine, 270, 1.66% Internal Medicine 270 publications, 1.66%
Drug Discovery	Drug Discovery, 268, 1.64% Drug Discovery 268 publications, 1.64%
Surgery	Surgery, 259, 1.59% Surgery 259 publications, 1.59%
	500 1000 1500 2000 2500

Journals

	50 100 150 200 250
Orthopedics & Traumatology	Orthopedics & Traumatology, 245, 1.5% Orthopedics & Traumatology 245 publications, 1.5%
Journal of the Physical Society of Japan	Journal of the Physical Society of Japan, 239, 1.47% Journal of the Physical Society of Japan 239 publications, 1.47%
Scientific Reports	Scientific Reports, 180, 1.1% Scientific Reports 180 publications, 1.1%
Zoological Science	Zoological Science, 134, 0.82% Zoological Science 134 publications, 0.82%
Internal Medicine	Internal Medicine, 116, 0.71% Internal Medicine 116 publications, 0.71%
PLoS ONE	PLoS ONE, 111, 0.68% PLoS ONE 111 publications, 0.68%
Coral Reefs	Coral Reefs, 109, 0.67% Coral Reefs 109 publications, 0.67%
Medical Entomology and Zoology	Medical Entomology and Zoology, 109, 0.67% Medical Entomology and Zoology 109 publications, 0.67%
The Proceedings of Conference of Kyushu Branch	The Proceedings of Conference of Kyushu Branch, 100, 0.61% The Proceedings of Conference of Kyushu Branch 100 publications, 0.61%
Ichthyological Research	Ichthyological Research, 96, 0.59% Ichthyological Research 96 publications, 0.59%
Zootaxa	Zootaxa, 84, 0.52% Zootaxa 84 publications, 0.52%
Journal of Dermatology	Journal of Dermatology, 79, 0.48% Journal of Dermatology 79 publications, 0.48%
Hypertension Research	Hypertension Research, 76, 0.47% Hypertension Research 76 publications, 0.47%
Microbiology and Immunology	Microbiology and Immunology, 75, 0.46% Microbiology and Immunology 75 publications, 0.46%
Journal of Physics: Conference Series	Journal of Physics: Conference Series, 71, 0.44% Journal of Physics: Conference Series 71 publications, 0.44%
Blood	Blood, 68, 0.42% Blood 68 publications, 0.42%
IEEJ Transactions on Industry Applications	IEEJ Transactions on Industry Applications, 65, 0.4% IEEJ Transactions on Industry Applications 65 publications, 0.4%
IEEJ Transactions on Electronics, Information and Systems	IEEJ Transactions on Electronics, Information and Systems, 64, 0.39% IEEJ Transactions on Electronics, Information and Systems 64 publications, 0.39%
Journal of Architecture and Planning (Transactions of AIJ)	Journal of Architecture and Planning (Transactions of AIJ), 64, 0.39% Journal of Architecture and Planning (Transactions of AIJ) 64 publications, 0.39%
Journal of Infection and Chemotherapy	Journal of Infection and Chemotherapy, 62, 0.38% Journal of Infection and Chemotherapy 62 publications, 0.38%
Galaxea Journal of Coral Reef Studies	Galaxea Journal of Coral Reef Studies, 62, 0.38% Galaxea Journal of Coral Reef Studies 62 publications, 0.38%
IEEJ Transactions on Power and Energy	IEEJ Transactions on Power and Energy, 60, 0.37% IEEJ Transactions on Power and Energy 60 publications, 0.37%
The Proceedings of the Annual Convention of the Japanese Psychological Association	The Proceedings of the Annual Convention of the Japanese Psychological Association, 59, 0.36% The Proceedings of the Annual Convention of the Japanese Psychological Association 59 publications, 0.36%
Sustainability	Sustainability, 56, 0.34% Sustainability 56 publications, 0.34%
Energies	Energies, 55, 0.34% Energies 55 publications, 0.34%
Physical Review D	Physical Review D, 54, 0.33% Physical Review D 54 publications, 0.33%
Physical Review B	Physical Review B, 52, 0.32% Physical Review B 52 publications, 0.32%
Bioscience, Biotechnology and Biochemistry	Bioscience, Biotechnology and Biochemistry, 51, 0.31% Bioscience, Biotechnology and Biochemistry 51 publications, 0.31%
Marine Biology	Marine Biology, 50, 0.31% Marine Biology 50 publications, 0.31%
Biochemical and Biophysical Research Communications	Biochemical and Biophysical Research Communications, 50, 0.31% Biochemical and Biophysical Research Communications 50 publications, 0.31%
	50 100 150 200 250

Publishers

	500 1000 1500 2000 2500 3000 3500
Elsevier	Elsevier, 3070, 18.83% Elsevier 3070 publications, 18.83%
Springer Nature	Springer Nature, 2914, 17.88% Springer Nature 2914 publications, 17.88%
Wiley	Wiley, 1690, 10.37% Wiley 1690 publications, 10.37%
MDPI	MDPI, 523, 3.21% MDPI 523 publications, 3.21%
Oxford University Press	Oxford University Press, 461, 2.83% Oxford University Press 461 publications, 2.83%
Japan Society of Mechanical Engineers	Japan Society of Mechanical Engineers, 449, 2.75% Japan Society of Mechanical Engineers 449 publications, 2.75%
Taylor & Francis	Taylor & Francis, 448, 2.75% Taylor & Francis 448 publications, 2.75%
West-Japanese Society of Orthopedics & Traumatology	West-Japanese Society of Orthopedics & Traumatology, 245, 1.5% West-Japanese Society of Orthopedics & Traumatology 245 publications, 1.5%
Physical Society of Japan	Physical Society of Japan, 239, 1.47% Physical Society of Japan 239 publications, 1.47%
Institute of Electrical Engineers of Japan (IEE Japan)	Institute of Electrical Engineers of Japan (IEE Japan), 193, 1.18% Institute of Electrical Engineers of Japan (IEE Japan) 193 publications, 1.18%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 177, 1.09% Ovid Technologies (Wolters Kluwer Health) 177 publications, 1.09%
Japanese Society of Internal Medicine	Japanese Society of Internal Medicine, 156, 0.96% Japanese Society of Internal Medicine 156 publications, 0.96%
IOP Publishing	IOP Publishing, 148, 0.91% IOP Publishing 148 publications, 0.91%
SAGE	SAGE, 145, 0.89% SAGE 145 publications, 0.89%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 139, 0.85% Public Library of Science (PLoS) 139 publications, 0.85%
American Physical Society (APS)	American Physical Society (APS), 135, 0.83% American Physical Society (APS) 135 publications, 0.83%
Zoological Society of Japan	Zoological Society of Japan, 134, 0.82% Zoological Society of Japan 134 publications, 0.82%
American Chemical Society (ACS)	American Chemical Society (ACS), 133, 0.82% American Chemical Society (ACS) 133 publications, 0.82%
Institute of Electrical and Electronics Engineers (IEEE)	Institute of Electrical and Electronics Engineers (IEEE), 131, 0.8% Institute of Electrical and Electronics Engineers (IEEE) 131 publications, 0.8%
American Society for Microbiology	American Society for Microbiology, 127, 0.78% American Society for Microbiology 127 publications, 0.78%
Architectural Institute of Japan	Architectural Institute of Japan, 121, 0.74% Architectural Institute of Japan 121 publications, 0.74%
Frontiers Media S.A.	Frontiers Media S.A., 116, 0.71% Frontiers Media S.A. 116 publications, 0.71%
Japan Society of Medical Entomology an Zoology	Japan Society of Medical Entomology an Zoology, 109, 0.67% Japan Society of Medical Entomology an Zoology 109 publications, 0.67%
Japanese Coral Reef Society	Japanese Coral Reef Society, 108, 0.66% Japanese Coral Reef Society 108 publications, 0.66%
Magnolia Press	Magnolia Press, 104, 0.64% Magnolia Press 104 publications, 0.64%
AIP Publishing	AIP Publishing, 91, 0.56% AIP Publishing 91 publications, 0.56%
Cambridge University Press	Cambridge University Press, 85, 0.52% Cambridge University Press 85 publications, 0.52%
S. Karger AG	S. Karger AG, 75, 0.46% S. Karger AG 75 publications, 0.46%
American Society of Hematology	American Society of Hematology, 70, 0.43% American Society of Hematology 70 publications, 0.43%
BMJ	BMJ, 68, 0.42% BMJ 68 publications, 0.42%
	500 1000 1500 2000 2500 3000 3500

With other organizations

	200 400 600 800 1000 1200
University of Tokyo	University of Tokyo, 1140, 6.99% University of Tokyo 1140 publications, 6.99%
Kagoshima University	Kagoshima University, 704, 4.32% Kagoshima University 704 publications, 4.32%
Kyoto University	Kyoto University, 700, 4.29% Kyoto University 700 publications, 4.29%
Kyushu University	Kyushu University, 660, 4.05% Kyushu University 660 publications, 4.05%
Tohoku University	Tohoku University, 577, 3.54% Tohoku University 577 publications, 3.54%
Hokkaido University	Hokkaido University, 490, 3.01% Hokkaido University 490 publications, 3.01%
Nagasaki University	Nagasaki University, 451, 2.77% Nagasaki University 451 publications, 2.77%
Osaka University	Osaka University, 448, 2.75% Osaka University 448 publications, 2.75%
Nagoya University	Nagoya University, 390, 2.39% Nagoya University 390 publications, 2.39%
Hiroshima University	Hiroshima University, 324, 1.99% Hiroshima University 324 publications, 1.99%
University of Tsukuba	University of Tsukuba, 318, 1.95% University of Tsukuba 318 publications, 1.95%
Keio University	Keio University, 287, 1.76% Keio University 287 publications, 1.76%
Niigata University	Niigata University, 280, 1.72% Niigata University 280 publications, 1.72%
Kobe University	Kobe University, 268, 1.64% Kobe University 268 publications, 1.64%
Saga University	Saga University, 257, 1.58% Saga University 257 publications, 1.58%
National Institute of Advanced Industrial Science and Technology	National Institute of Advanced Industrial Science and Technology, 251, 1.54% National Institute of Advanced Industrial Science and Technology 251 publications, 1.54%
Osaka Metropolitan University	Osaka Metropolitan University, 250, 1.53% Osaka Metropolitan University 250 publications, 1.53%
Fukuoka University	Fukuoka University, 230, 1.41% Fukuoka University 230 publications, 1.41%
Kumamoto University	Kumamoto University, 227, 1.39% Kumamoto University 227 publications, 1.39%
Okayama University	Okayama University, 224, 1.37% Okayama University 224 publications, 1.37%
University of the Ryukyus Hospital	University of the Ryukyus Hospital, 219, 1.34% University of the Ryukyus Hospital 219 publications, 1.34%
Chiba University	Chiba University, 203, 1.25% Chiba University 203 publications, 1.25%
Ehime University	Ehime University, 202, 1.24% Ehime University 202 publications, 1.24%
University of Miyazaki	University of Miyazaki, 201, 1.23% University of Miyazaki 201 publications, 1.23%
Kurume University	Kurume University, 199, 1.22% Kurume University 199 publications, 1.22%
Kitasato University	Kitasato University, 190, 1.17% Kitasato University 190 publications, 1.17%
Yokohama City University	Yokohama City University, 179, 1.1% Yokohama City University 179 publications, 1.1%
RIKEN-Institute of Physical and Chemical Research	RIKEN-Institute of Physical and Chemical Research, 166, 1.02% RIKEN-Institute of Physical and Chemical Research 166 publications, 1.02%
Tokai University	Tokai University, 162, 0.99% Tokai University 162 publications, 0.99%
Kanazawa University	Kanazawa University, 157, 0.96% Kanazawa University 157 publications, 0.96%
	200 400 600 800 1000 1200

With foreign organizations

	10 20 30 40 50 60 70 80 90 100
National Taiwan University	National Taiwan University, 91, 0.56% National Taiwan University 91 publications, 0.56%
National University of Singapore	National University of Singapore, 89, 0.55% National University of Singapore 89 publications, 0.55%
James Cook University	James Cook University, 76, 0.47% James Cook University 76 publications, 0.47%
Diponegoro University	Diponegoro University, 68, 0.42% Diponegoro University 68 publications, 0.42%
University of Hawaiʻi at Mānoa	University of Hawaiʻi at Mānoa, 68, 0.42% University of Hawaiʻi at Mānoa 68 publications, 0.42%
Biodiversity Research Center, Academia Sinica	Biodiversity Research Center, Academia Sinica, 66, 0.4% Biodiversity Research Center, Academia Sinica 66 publications, 0.4%
Harvard University	Harvard University, 64, 0.39% Harvard University 64 publications, 0.39%
University of California, San Diego	University of California, San Diego, 64, 0.39% University of California, San Diego 64 publications, 0.39%
Zagazig University	Zagazig University, 62, 0.38% Zagazig University 62 publications, 0.38%
Aswan University	Aswan University, 62, 0.38% Aswan University 62 publications, 0.38%
Imperial College London	Imperial College London, 53, 0.33% Imperial College London 53 publications, 0.33%
University of Sydney	University of Sydney, 52, 0.32% University of Sydney 52 publications, 0.32%
University of Queensland	University of Queensland, 50, 0.31% University of Queensland 50 publications, 0.31%
Shanmugha Arts, Science, Technology & Research Academy	Shanmugha Arts, Science, Technology & Research Academy, 44, 0.27% Shanmugha Arts, Science, Technology & Research Academy 44 publications, 0.27%
Khon Kaen University	Khon Kaen University, 43, 0.26% Khon Kaen University 43 publications, 0.26%
University of Michigan	University of Michigan, 43, 0.26% University of Michigan 43 publications, 0.26%
Naturalis Biodiversity Center	Naturalis Biodiversity Center, 43, 0.26% Naturalis Biodiversity Center 43 publications, 0.26%
Australian Research Council Centre of Excellence for Coral Reef Studies	Australian Research Council Centre of Excellence for Coral Reef Studies, 39, 0.24% Australian Research Council Centre of Excellence for Coral Reef Studies 39 publications, 0.24%
National Taiwan Normal University	National Taiwan Normal University, 38, 0.23% National Taiwan Normal University 38 publications, 0.23%
University of Oxford	University of Oxford, 36, 0.22% University of Oxford 36 publications, 0.22%
National Yang Ming Chiao Tung University	National Yang Ming Chiao Tung University, 36, 0.22% National Yang Ming Chiao Tung University 36 publications, 0.22%
Chulalongkorn University	Chulalongkorn University, 36, 0.22% Chulalongkorn University 36 publications, 0.22%
University of Copenhagen	University of Copenhagen, 34, 0.21% University of Copenhagen 34 publications, 0.21%
National Research and Innovation Agency	National Research and Innovation Agency, 34, 0.21% National Research and Innovation Agency 34 publications, 0.21%
Sam Ratulangi University	Sam Ratulangi University, 34, 0.21% Sam Ratulangi University 34 publications, 0.21%
University of Illinois Urbana-Champaign	University of Illinois Urbana-Champaign, 34, 0.21% University of Illinois Urbana-Champaign 34 publications, 0.21%
Ioffe Physical-Technical Institute of the Russian Academy of Sciences	Ioffe Physical-Technical Institute of the Russian Academy of Sciences, 33, 0.2% Ioffe Physical-Technical Institute of the Russian Academy of Sciences 33 publications, 0.2%
King Abdullah University of Science and Technology	King Abdullah University of Science and Technology, 33, 0.2% King Abdullah University of Science and Technology 33 publications, 0.2%
Sungkyunkwan University	Sungkyunkwan University, 33, 0.2% Sungkyunkwan University 33 publications, 0.2%
University of Texas at El Paso	University of Texas at El Paso, 33, 0.2% University of Texas at El Paso 33 publications, 0.2%
	10 20 30 40 50 60 70 80 90 100

With other countries

	200 400 600 800 1000 1200
USA	USA, 1140, 6.99% USA 1140 publications, 6.99%
China	China, 569, 3.49% China 569 publications, 3.49%
Australia	Australia, 281, 1.72% Australia 281 publications, 1.72%
United Kingdom	United Kingdom, 279, 1.71% United Kingdom 279 publications, 1.71%
Indonesia	Indonesia, 243, 1.49% Indonesia 243 publications, 1.49%
Germany	Germany, 240, 1.47% Germany 240 publications, 1.47%
Republic of Korea	Republic of Korea, 211, 1.29% Republic of Korea 211 publications, 1.29%
France	France, 191, 1.17% France 191 publications, 1.17%
Thailand	Thailand, 175, 1.07% Thailand 175 publications, 1.07%
India	India, 168, 1.03% India 168 publications, 1.03%
Bangladesh	Bangladesh, 143, 0.88% Bangladesh 143 publications, 0.88%
Egypt	Egypt, 141, 0.86% Egypt 141 publications, 0.86%
Russia	Russia, 135, 0.83% Russia 135 publications, 0.83%
Canada	Canada, 128, 0.79% Canada 128 publications, 0.79%
Malaysia	Malaysia, 114, 0.7% Malaysia 114 publications, 0.7%
Italy	Italy, 111, 0.68% Italy 111 publications, 0.68%
Singapore	Singapore, 104, 0.64% Singapore 104 publications, 0.64%
Brazil	Brazil, 100, 0.61% Brazil 100 publications, 0.61%
Philippines	Philippines, 94, 0.58% Philippines 94 publications, 0.58%
Vietnam	Vietnam, 92, 0.56% Vietnam 92 publications, 0.56%
Netherlands	Netherlands, 90, 0.55% Netherlands 90 publications, 0.55%
Saudi Arabia	Saudi Arabia, 83, 0.51% Saudi Arabia 83 publications, 0.51%
Spain	Spain, 70, 0.43% Spain 70 publications, 0.43%
Switzerland	Switzerland, 55, 0.34% Switzerland 55 publications, 0.34%
Belgium	Belgium, 50, 0.31% Belgium 50 publications, 0.31%
Iran	Iran, 50, 0.31% Iran 50 publications, 0.31%
Poland	Poland, 48, 0.29% Poland 48 publications, 0.29%
New Zealand	New Zealand, 46, 0.28% New Zealand 46 publications, 0.28%
Laos	Laos, 45, 0.28% Laos 45 publications, 0.28%
	200 400 600 800 1000 1200

We do not take into account publications without a DOI.
Statistics recalculated daily.
Publications published earlier than 1964 are ignored in the statistics.
The horizontal charts show the 30 top positions.
Journals quartiles values are relevant at the moment.