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Research facility · Okayama · Japan

Okayama Prefecture

In research, Okayama Prefecture stands highest in Health Sciences (#10,557 of 11,982 worldwide) and Medicine (#9,859 of 10,443 worldwide), 2022–2025.

pref.okayama.jpROR OpenAlex
World rank, 2022–2025
#22,503
of 28,054 · #26,903 all time
Rank in Japan
#713
of 1,070
Research works
826
▲ 26% vs 2013–17
Citations
8.8k
10.7 per fractional work
Top-10% rate
6.8%
record average 16.5%
Open access
59%
world 28%

What is Okayama Prefecture 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
Health SciencesDomain #10,557 of 11,982 7.0%66 #16482
MedicineField #9,859 of 10,443 6.6%63 #14467

Each strip is that field’s whole ranked pool, with the notch where Okayama Prefecture 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).

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: 2.02× its world share, 12 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.08× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 0.97× its world share, 1 worksImmunology and Micro…Neuroscience: 0.82× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 3.79× its world share, 2 worksPharmacology, Toxico…Chemistry: 0.31× its world share, 1 worksChemistryComputer Science: 0.10× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 1.53× its world share, 3 worksEarth and Planetary …Energy: 0.20× its world share, 0 worksEnergyEngineering: 0.45× its world share, 8 worksEngineeringEnvironmental Science: 0.98× its world share, 6 worksEnvironmental ScienceMaterials Science: 1.05× its world share, 5 worksMaterials ScienceMathematics: 1.22× its world share, 2 worksMathematicsPhysics and Astronomy: 0.54× its world share, 2 worksPhysics and AstronomyDentistry: 1.01× its world share, 1 worksDentistryHealth Professions: 0.54× its world share, 2 worksHealth ProfessionsMedicine: 2.63× its world share, 63 worksMedicineNursing: 1.07× its world share, 1 worksNursingVeterinary: 1.58× its world share, 0 worksVeterinaryArts and Humanities: 0.02× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.23× its world share, 1 worksBusiness, Management…Decision Sciences: 0.55× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.07× its world share, 0 worksEconomics, Econometr…Psychology: 0.65× its world share, 2 worksPsychologySocial Sciences: 0.19× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Pharmacology, Toxicology and Pharmaceutics, 3.8×. Every wedge is a field page.

Who are the top researchers at Okayama Prefecture?

Ranked on the composite score, 昭郎 大竹, H. Nasu and Kentaro Kawamura lead among researchers whose main affiliation is Okayama Prefecture.

  1. 1 昭郎 大竹 Japan · #738,524 worldwide 0 citations · 23 works
  2. 2 H. Nasu Japan · #1,452,948 worldwide 9 citations · 17 works
  3. 3 Kentaro Kawamura Japan · #1,632,917 worldwide 1 citations · 15 works
All ranked researchers at Okayama Prefecture

Which keywords describe research at Okayama Prefecture?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Invasive Species, Diagnosis, Infection, Treatment, Biodiversity, Biogeography and Clinical Practice Guidelines.

▲ 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. Epidemiology12▲ 2.4×63 topics
  2. Treatment6▲ 4.3×24 topics
  3. Diagnosis6▲ 5.3×21 topics
  4. Invasive Species6▲ 11×6 topics
  5. Biodiversity5▲ 5.5×6 topics
  6. Infection5▲ 16×6 topics
  7. Inflammation5▲ 1.91×29 topics
  8. Management5▲ 4.8×17 topics
  9. Clinical Practice Guidelines4▲ 6.2×10 topics
  10. Biogeography4▲ 12×5 topics
  11. Cancer4▲ 2.2×19 topics
  12. Cardiovascular Disease3▲ 2.3×17 topics
  13. Environmental Monitoring3▲ 6.8×3 topics
  14. Nematodes3▲ 52×3 topics
  15. Self-Assembly3▲ 7.6×3 topics
  16. Biomimetic Synthesis3▲ 164×1 topic
  17. Hepatocellular Carcinoma3▲ 12×3 topics
  18. Parasitism3▲ 266×1 topic
  19. Peptide-Directed Materials3▲ 164×1 topic
  20. Snails3▲ 266×1 topic
  21. Taxonomy3▲ 17×5 topics
  22. Phylogenetic Analysis3▲ 7.1×6 topics
  23. Guidelines3▲ 4.4×10 topics
  24. Pathogenesis3▲ 4.2×13 topics
  25. Prognostic Factors2▲ 4.6×12 topics
  26. Complications2▲ 3.8×12 topics
  27. Ecosystem Functioning2▲ 9.9×3 topics
  28. Surgical Management2▲ 4.2×9 topics
  29. Biomonitoring2▲ 22×3 topics
  30. Phylogeny2▲ 11×4 topics
  31. Chronic Kidney Disease2▲ 6.5×5 topics
  32. Prenatal Diagnosis2▲ 11×4 topics
  33. Radiofrequency Ablation2▲ 16×2 topics
  34. Evolution2▲ 6.1×6 topics
  35. Fibrosis2▲ 8.2×6 topics
  36. DNA Barcoding2▲ 8.2×5 topics
  37. Ecology2▲ 9.0×3 topics
  38. Liver Cancer2▲ 24×1 topic
  39. Sorafenib2▲ 24×1 topic
  40. Survival2▲ 10×3 topics

Which research topics does Okayama Prefecture publish most on?

By volume in 2022–2025: Mollusks and Parasites Studies, Diatoms and Algae Research, Hepatocellular Carcinoma Treatment and Prognosis and Aquatic Invertebrate Ecology and Behavior.

Mollusks and Parasites Studies: 3 fractional worksDiatoms and Algae Research: 3 fractional worksHepatocellular Carcinoma Treatment and Prognosis: 2 fractional worksAquatic Invertebrate Ecology and Behavior: 1 fractional worksLiver Disease Diagnosis and Treatment: 1 fractional worksChronic Kidney Disease and Diabetes: 1 fractional worksTracheal and airway disorders: 1 fractional worksMarine Biology and Ecology Research: 1 fractional worksFreshwater macroinvertebrate diversity and ecology: 1 fractional worksCollembola Taxonomy and Ecology Studies: 1 fractional works
Insect ScienceBiomaterialsHepatologyEcology5 others

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

  1. 1 Mollusks and Parasites Studies Insect Science 3 works
  2. 2 Diatoms and Algae Research Biomaterials 3 works
  3. 3 Hepatocellular Carcinoma Treatment and Prognosis Hepatology 2 works
  4. 4 Aquatic Invertebrate Ecology and Behavior Ecology 1 works
  5. 5 Liver Disease Diagnosis and Treatment Epidemiology 1 works
  6. 6 Chronic Kidney Disease and Diabetes Nephrology 1 works
  7. 7 Tracheal and airway disorders Pulmonary and Respiratory Medicine 1 works
  8. 8 Marine Biology and Ecology Research Oceanography 1 works
  9. 9 Freshwater macroinvertebrate diversity and ecology Ecology 1 works
  10. 10 Collembola Taxonomy and Ecology Studies Ecology, Evolution, Behavior and Systematics 1 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 available58.6%not open41.4%

World: 28% of research is openly available.

with international co-authors11.0%domestic only89.0%

World: 19% is written across borders.

How has Okayama Prefecture's research output changed?

Output in 2018–2022 was 26% higher 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 Okayama

All research institutions in Okayama

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.