University of the Ryukyus

University of the Ryukyus
Short name
Ryƫdai
Country, city
Japan, Okinawa
Publications
12 829
Citations
233 685
h-index
156
Top-3 journals
Scientific Reports
Scientific Reports (156 publications)
Internal Medicine
Internal Medicine (108 publications)
Top-3 organizations
University of Tokyo
University of Tokyo (1009 publications)
Kagoshima University
Kagoshima University (555 publications)
Kyoto University
Kyoto University (554 publications)
Top-3 foreign organizations
from chars
 / 
 / 
 / 
 / 
Publications found: 0

Since 1969

Total publications
12824
Total citations
233557
Citations per publication
18.21
Average publications per year
229
Average authors per publication
6.94
h-index
156
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.

Top-30

Fields of science

500
1000
1500
2000
2500
General Medicine, 2028, 15.81%
General Medicine
2028 publications, 15.81%
Ecology, Evolution, Behavior and Systematics, 1143, 8.91%
Ecology, Evolution, Behavior and Systematics
1143 publications, 8.91%
Biochemistry, 752, 5.86%
Biochemistry
752 publications, 5.86%
Molecular Biology, 699, 5.45%
Molecular Biology
699 publications, 5.45%
Aquatic Science, 679, 5.29%
Aquatic Science
679 publications, 5.29%
General Physics and Astronomy, 545, 4.25%
General Physics and Astronomy
545 publications, 4.25%
Genetics, 536, 4.18%
Genetics
536 publications, 4.18%
Infectious Diseases, 484, 3.77%
Infectious Diseases
484 publications, 3.77%
Oncology, 481, 3.75%
Oncology
481 publications, 3.75%
Electrical and Electronic Engineering, 469, 3.66%
Electrical and Electronic Engineering
469 publications, 3.66%
Animal Science and Zoology, 460, 3.59%
Animal Science and Zoology
460 publications, 3.59%
Immunology, 444, 3.46%
Immunology
444 publications, 3.46%
Plant Science, 422, 3.29%
Plant Science
422 publications, 3.29%
Cell Biology, 419, 3.27%
Cell Biology
419 publications, 3.27%
Cancer Research, 381, 2.97%
Cancer Research
381 publications, 2.97%
Physiology, 380, 2.96%
Physiology
380 publications, 2.96%
Cardiology and Cardiovascular Medicine, 353, 2.75%
Cardiology and Cardiovascular Medicine
353 publications, 2.75%
Pharmacology, 349, 2.72%
Pharmacology
349 publications, 2.72%
Condensed Matter Physics, 346, 2.7%
Condensed Matter Physics
346 publications, 2.7%
Multidisciplinary, 343, 2.67%
Multidisciplinary
343 publications, 2.67%
Ecology, 335, 2.61%
Ecology
335 publications, 2.61%
Microbiology, 318, 2.48%
Microbiology
318 publications, 2.48%
General Chemistry, 315, 2.46%
General Chemistry
315 publications, 2.46%
Organic Chemistry, 299, 2.33%
Organic Chemistry
299 publications, 2.33%
General Biochemistry, Genetics and Molecular Biology, 289, 2.25%
General Biochemistry, Genetics and Molecular Biology
289 publications, 2.25%
Virology, 280, 2.18%
Virology
280 publications, 2.18%
Oceanography, 274, 2.14%
Oceanography
274 publications, 2.14%
Internal Medicine, 268, 2.09%
Internal Medicine
268 publications, 2.09%
Drug Discovery, 267, 2.08%
Drug Discovery
267 publications, 2.08%
Surgery, 255, 1.99%
Surgery
255 publications, 1.99%
500
1000
1500
2000
2500

Journals

50
100
150
200
250
Journal of the Physical Society of Japan
237 publications, 1.85%
Scientific Reports
156 publications, 1.22%
Internal Medicine
108 publications, 0.84%
PLoS ONE
106 publications, 0.83%
Ichthyological Research
94 publications, 0.73%
Coral Reefs
92 publications, 0.72%
Zootaxa
77 publications, 0.6%
Microbiology and Immunology
75 publications, 0.58%
Journal of Physics: Conference Series
71 publications, 0.55%
Journal of Dermatology
71 publications, 0.55%
Blood
67 publications, 0.52%
The Proceedings of the Annual Convention of the Japanese Psychological Association
59 publications, 0.46%
Journal of Architecture and Planning (Transactions of AIJ)
57 publications, 0.44%
Journal of Infection and Chemotherapy
55 publications, 0.43%
Energies
55 publications, 0.43%
Physical Review D
53 publications, 0.41%
Sustainability
51 publications, 0.4%
Bioscience, Biotechnology and Biochemistry
51 publications, 0.4%
Hypertension Research
50 publications, 0.39%
Biochemical and Biophysical Research Communications
50 publications, 0.39%
Physical Review B
49 publications, 0.38%
Marine Biology
48 publications, 0.37%
Medical Entomology and Zoology
46 publications, 0.36%
International Journal of Urology
45 publications, 0.35%
Psychiatry and Clinical Neurosciences
45 publications, 0.35%
Lecture Notes in Computer Science
44 publications, 0.34%
Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
44 publications, 0.34%
Retrovirology
42 publications, 0.33%
Marine Biodiversity
42 publications, 0.33%
Anthropological Science
41 publications, 0.32%
50
100
150
200
250

Publishers

500
1000
1500
2000
2500
3000
Elsevier
2824 publications, 22.02%
Springer Nature
2573 publications, 20.06%
Wiley
1542 publications, 12.02%
Multidisciplinary Digital Publishing Institute (MDPI)
461 publications, 3.59%
Taylor & Francis
413 publications, 3.22%
Oxford University Press
408 publications, 3.18%
Physical Society of Japan
237 publications, 1.85%
Wolters Kluwer Health
153 publications, 1.19%
Japanese Society of Internal Medicine
148 publications, 1.15%
IOP Publishing
141 publications, 1.1%
SAGE
134 publications, 1.04%
Public Library of Science (PLoS)
131 publications, 1.02%
American Society for Microbiology
124 publications, 0.97%
American Physical Society (APS)
123 publications, 0.96%
IEEE
116 publications, 0.9%
American Chemical Society (ACS)
115 publications, 0.9%
Architectural Institute of Japan
108 publications, 0.84%
Frontiers Media S.A.
101 publications, 0.79%
Magnolia Press
95 publications, 0.74%
American Institute of Physics (AIP)
86 publications, 0.67%
Cambridge University Press
80 publications, 0.62%
American Society of Hematology
68 publications, 0.53%
BMJ
65 publications, 0.51%
Pharmaceutical Society of Japan
63 publications, 0.49%
Spandidos Publications
61 publications, 0.48%
Institute Electrical Engineers Japan
61 publications, 0.48%
The Japanese Psychological Association
60 publications, 0.47%
Walter de Gruyter
56 publications, 0.44%
World Scientific
56 publications, 0.44%
Japan Society of Mechanical Engineers
56 publications, 0.44%
500
1000
1500
2000
2500
3000

With other organizations

200
400
600
800
1000
1200
University of Tokyo
1009 publications, 7.87%
Kagoshima University
555 publications, 4.33%
Kyoto University
554 publications, 4.32%
Kyushu University
510 publications, 3.98%
Tohoku University
504 publications, 3.93%
Hokkaido University
407 publications, 3.17%
Nagasaki University
392 publications, 3.06%
Osaka University
390 publications, 3.04%
Nagoya University
317 publications, 2.47%
Hiroshima University
280 publications, 2.18%
University of Tsukuba
268 publications, 2.09%
Tokyo University of Science
262 publications, 2.04%
Niigata University
247 publications, 1.93%
Kobe University
244 publications, 1.9%
Keio University
236 publications, 1.84%
Saga University
205 publications, 1.6%
Osaka Metropolitan University
199 publications, 1.55%
National Institute of Advanced Industrial Science and Technology
197 publications, 1.54%
Okayama University
193 publications, 1.5%
Kumamoto University
184 publications, 1.43%
Ehime University
176 publications, 1.37%
Chiba University
166 publications, 1.29%
Kitasato University
157 publications, 1.22%
Kurume University
150 publications, 1.17%
Tokai University
143 publications, 1.12%
University of the Ryukyus Hospital
140 publications, 1.09%
Yokohama City University
137 publications, 1.07%
Okinawa Institute of Science and Technology Graduate University
130 publications, 1.01%
Tokyo Medical and Dental University
128 publications, 1%
Japan Agency for Marine-Earth Science and Technology
126 publications, 0.98%
200
400
600
800
1000
1200

With foreign organizations

10
20
30
40
50
60
70
80
90
National University of Singapore
81 publications, 0.63%
National Taiwan University
71 publications, 0.55%
University of California, San Diego
61 publications, 0.48%
James Cook University
59 publications, 0.46%
Harvard University
59 publications, 0.46%
Diponegoro University
49 publications, 0.38%
Imperial College London
47 publications, 0.37%
Zagazig University
46 publications, 0.36%
University of Sydney
44 publications, 0.34%
University of Queensland
41 publications, 0.32%
Khon Kaen University
40 publications, 0.31%
Shanmugha Arts, Science, Technology & Research Academy
39 publications, 0.3%
University of Michigan
38 publications, 0.3%
National Yang Ming Chiao Tung University
36 publications, 0.28%
Australian Research Council Centre of Excellence for Coral Reef Studies
34 publications, 0.27%
Naturalis Biodiversity Center
34 publications, 0.27%
Ioffe Physical-Technical Institute of the Russian Academy of Sciences
33 publications, 0.26%
Sungkyunkwan University
31 publications, 0.24%
University of Texas at El Paso
31 publications, 0.24%
University of Illinois Urbana-Champaign
30 publications, 0.23%
University of Oxford
29 publications, 0.23%
Sam Ratulangi University
29 publications, 0.23%
Jeju National University
29 publications, 0.23%
University of the Philippines Manila
29 publications, 0.23%
National Taiwan Normal University
28 publications, 0.22%
Kasetsart University
28 publications, 0.22%
Taipei Veterans General Hospital
27 publications, 0.21%
University of Copenhagen
26 publications, 0.2%
Financial University under the Government of the Russian Federation
25 publications, 0.19%
University of Cambridge
25 publications, 0.19%
10
20
30
40
50
60
70
80
90

With other countries

200
400
600
800
1000
1200
USA, 1080, 8.42%
USA
1080 publications, 8.42%
China, 532, 4.15%
China
532 publications, 4.15%
Australia, 266, 2.07%
Australia
266 publications, 2.07%
United Kingdom, 261, 2.04%
United Kingdom
261 publications, 2.04%
Indonesia, 229, 1.79%
Indonesia
229 publications, 1.79%
Germany, 214, 1.67%
Germany
214 publications, 1.67%
Republic of Korea, 203, 1.58%
Republic of Korea
203 publications, 1.58%
France, 186, 1.45%
France
186 publications, 1.45%
Thailand, 166, 1.29%
Thailand
166 publications, 1.29%
India, 156, 1.22%
India
156 publications, 1.22%
Bangladesh, 135, 1.05%
Bangladesh
135 publications, 1.05%
Egypt, 131, 1.02%
Egypt
131 publications, 1.02%
Russia, 129, 1.01%
Russia
129 publications, 1.01%
Canada, 120, 0.94%
Canada
120 publications, 0.94%
Malaysia, 106, 0.83%
Malaysia
106 publications, 0.83%
Italy, 104, 0.81%
Italy
104 publications, 0.81%
Singapore, 100, 0.78%
Singapore
100 publications, 0.78%
Brazil, 94, 0.73%
Brazil
94 publications, 0.73%
Vietnam, 90, 0.7%
Vietnam
90 publications, 0.7%
Philippines, 89, 0.69%
Philippines
89 publications, 0.69%
Netherlands, 81, 0.63%
Netherlands
81 publications, 0.63%
Saudi Arabia, 79, 0.62%
Saudi Arabia
79 publications, 0.62%
Spain, 67, 0.52%
Spain
67 publications, 0.52%
Switzerland, 55, 0.43%
Switzerland
55 publications, 0.43%
Iran, 49, 0.38%
Iran
49 publications, 0.38%
Belgium, 47, 0.37%
Belgium
47 publications, 0.37%
Poland, 45, 0.35%
Poland
45 publications, 0.35%
Laos, 44, 0.34%
Laos
44 publications, 0.34%
New Zealand, 43, 0.34%
New Zealand
43 publications, 0.34%
Afghanistan, 42, 0.33%
Afghanistan
42 publications, 0.33%
200
400
600
800
1000
1200
  • We do not take into account publications without a DOI.
  • Statistics recalculated daily.
  • Publications published earlier than 1969 are ignored in the statistics.
  • The horizontal charts show the 30 top positions.
  • Journals quartiles values are relevant at the moment.