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Hospital / health system · Okinawa · Japan

University of the Ryukyus University Hospital

In research, University of the Ryukyus University Hospital stands highest in Medicine (#7,588 of 10,443 worldwide), Health Sciences (#9,246 of 11,982 worldwide) and Physical Sciences (#10,566 of 12,888 worldwide), 2022–2025.

hosp.u-ryukyu.ac.jpROR OpenAlex
World rank, 2022–2025
#15,884
of 28,054 · #18,538 all time
Rank in Japan
#424
of 1,070
Research works
3.6k
▼ 23% vs 2013–17
Citations
19k
5.4 per fractional work
Top-10% rate
4.4%
record average 16.5%
Open access
68%
world 28%

What is University of the Ryukyus University Hospital known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #7,588 of 10,443 5.7%77 #9683
Health SciencesDomain #9,246 of 11,982 5.6%86 #11928
Physical SciencesDomain #10,566 of 12,888 2.3%163 #11573
Social SciencesDomain #9,115 of 10,521 8.5%70 #13248

Each strip is that field’s whole ranked pool, with the notch where University of the Ryukyus University Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#9,683 #7,588
  2. Health Sciences#11,928 #9,246
  3. Physical Sciences#11,573 #10,566
  4. Social Sciences#13,248 #9,115
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 1.25× its world share, 22 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.86× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 1.28× its world share, 5 worksImmunology and Micro…Neuroscience: 0.92× its world share, 6 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.33× its world share, 2 worksPharmacology, Toxico…Chemical Engineering: 0.62× its world share, 1 worksChemical EngineeringChemistry: 0.33× its world share, 2 worksChemistryComputer Science: 0.96× its world share, 28 worksComputer ScienceEarth and Planetary Sciences: 2.57× its world share, 15 worksEarth and Planetary …Energy: 0.90× its world share, 3 worksEnergyEngineering: 1.03× its world share, 57 worksEngineeringEnvironmental Science: 2.17× its world share, 40 worksEnvironmental ScienceMaterials Science: 0.77× its world share, 10 worksMaterials ScienceMathematics: 1.12× its world share, 5 worksMathematicsPhysics and Astronomy: 0.37× its world share, 3 worksPhysics and AstronomyDentistry: 0.37× its world share, 1 worksDentistryHealth Professions: 0.64× its world share, 6 worksHealth ProfessionsMedicine: 1.08× its world share, 77 worksMedicineNursing: 0.62× its world share, 1 worksNursingVeterinary: 2.65× its world share, 1 worksVeterinaryArts and Humanities: 0.85× its world share, 9 worksArts and HumanitiesBusiness, Management and Accounting: 0.46× its world share, 6 worksBusiness, Management…Decision Sciences: 0.82× its world share, 3 worksDecision SciencesEconomics, Econometrics and Finance: 0.38× its world share, 3 worksEconomics, Econometr…Psychology: 0.68× its world share, 8 worksPsychologySocial Sciences: 0.89× its world share, 42 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 2.6×. Every wedge is a field page.

Who are the top researchers at University of the Ryukyus University Hospital?

Ranked on the composite score, 暢之 小倉, M. Furukawa and Hiroyuki Maeda lead among researchers whose main affiliation is University of the Ryukyus University Hospital.

  1. 1 暢之 小倉 Japan · #311,941 worldwide 0 citations · 28 works
  2. 2 M. Furukawa Japan · #363,566 worldwide 139 citations · 59 works
  3. 3 Hiroyuki Maeda Japan · #385,283 worldwide 38 citations · 33 works
  4. 4 Jun Tomiyama Japan · #403,807 worldwide 159 citations · 66 works
  5. 5 Ichiro Owan Japan · #417,359 worldwide 100 citations · 17 works
  6. 6 駿介 福島 Japan · #516,920 worldwide 0 citations · 21 works
  7. 7 Yasushi Michita Japan · #666,642 worldwide 18 citations · 21 works
  8. 8 Hiroshi Kakazu Japan · #674,517 worldwide 4 citations · 19 works
  9. 9 Shinya Nakamura Japan · #682,244 worldwide 85 citations · 34 works
  10. 10 Chang-Wan Han Japan · #745,937 worldwide 4 citations · 33 works
All ranked researchers at University of the Ryukyus University Hospital

Which keywords describe research at University of the Ryukyus University Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Biodiversity, Climate Change, Ecosystem Management, Cultural Landscape, landscape conservation, Satoyama, Community Participation and Sustainability.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Climate Change21▲ 2.1×37 topics
  2. Sustainability17▲ 1.85×23 topics
  3. Epidemiology16◆ 1.13×67 topics
  4. Biodiversity16▲ 5.9×18 topics
  5. Ecosystem Management10▲ 47×2 topics
  6. Community Participation10▲ 7.3×2 topics
  7. Cultural Landscape10▲ 84×2 topics
  8. Satoyama10▲ 263×1 topic
  9. landscape conservation10▲ 263×1 topic
  10. Education10▲ 1.51×7 topics
  11. Culture9▲ 4.7×6 topics
  12. History9▲ 3.5×6 topics
  13. Literature9▲ 4.3×4 topics
  14. Ethnicity8▲ 5.8×4 topics
  15. STEM Education8▲ 4.7×3 topics
  16. Philosophy8▲ 4.7×4 topics
  17. Learning Environments7▲ 70×2 topics
  18. Modernization7▲ 11×2 topics
  19. Science7▲ 8.0×3 topics
  20. Engineering Design7▲ 28×1 topic
  21. Robotics Programming7▲ 195×1 topic
  22. Design7▲ 12×2 topics
  23. Economic Security7▲ 8.8×2 topics
  24. Sharia Law7▲ 13×2 topics
  25. Social Influence7▲ 8.8×2 topics
  26. Conservation7▲ 4.3×13 topics
  27. International Trade Law7▲ 14×2 topics
  28. Air Force7▲ 15×1 topic
  29. Islam7▲ 8.6×1 topic
  30. Legal Regulation7▲ 8.2×1 topic
  31. Malay Language7▲ 13×1 topic
  32. Transport Policy7▲ 14×1 topic
  33. Warfare7▲ 15×1 topic
  34. Ocean Acidification6▲ 24×3 topics
  35. Biogeography5▲ 5.1×7 topics
  36. Marine Ecosystems5▲ 25×2 topics
  37. Benthic Communities4▲ 21×2 topics
  38. Marine Biodiversity4▲ 21×2 topics
  39. Bleaching4▲ 32×1 topic
  40. Coral Reefs4▲ 32×1 topic

Which research topics does University of the Ryukyus University Hospital publish most on?

By volume in 2022–2025: Urban and spatial planning, Educational Robotics and Engineering, Military Technology and Strategies and Legal and Regulatory Analysis.

Urban and spatial planning: 10 fractional worksEducational Robotics and Engineering: 7 fractional worksMilitary Technology and …7Military Technology and Strategies: 7 fractional worksLegal and Regulatory Ana…7Legal and Regulatory Analysis: 7 fractional worksLinguistic, Cultural, an…7Linguistic, Cultural, and Literary Studies: 7 fractional worksCoral and Marine Ecosyst…4Coral and Marine Ecosystems Studies: 4 fractional worksMarine Biology and Ecology Research: 2 fractional worksSpatial Neglect and Hemispheric Dysfunction: 2 fractional worksMarine and coastal plant biology: 2 fractional worksEarthquake and Disaster Impact Studies: 2 fractional works
Nature and Landscape ConservationArtificial IntelligenceAerospace EngineeringTransportation4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Urban and spatial planning Nature and Landscape Conservation 10 works
  2. 2 Educational Robotics and Engineering Artificial Intelligence 7 works
  3. 3 Military Technology and Strategies Aerospace Engineering 7 works
  4. 4 Legal and Regulatory Analysis Transportation 7 works
  5. 5 Linguistic, Cultural, and Literary Studies Sociology and Political Science 7 works
  6. 6 Coral and Marine Ecosystems Studies Ecology 4 works
  7. 7 Marine Biology and Ecology Research Oceanography 2 works
  8. 8 Spatial Neglect and Hemispheric Dysfunction Cognitive Neuroscience 2 works
  9. 9 Marine and coastal plant biology Oceanography 2 works
  10. 10 Earthquake and Disaster Impact Studies Transportation 2 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available67.5%not open32.5%

World: 28% of research is openly available.

with international co-authors10.4%domestic only89.6%

World: 19% is written across borders.

How has University of the Ryukyus University Hospital's research output changed?

Output in 2018–2022 was 23% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Okinawa

All research institutions in Okinawa

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.