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University · Tokyo · Japan

Nihon University

In research, Nihon University stands highest in Physical Sciences (#3,574 of 10,670 worldwide), Health Sciences (#3,743 of 9,902 worldwide) and Medicine (#3,354 of 8,541 worldwide), 2022-now. Relative to its size it is most specialised in Complementary and Manual Therapy, Orthodontics and Dentistry (Complementary and Manual Therapy is 14.7× its share of world research).

nihon-u.ac.jpROR OpenAlex
World rank, 2022-now
#4,330
of 22,385 · #4,480 all time
Rank in Japan
#94
of 924
Research works
40k
▼ 16% vs 2018-21
Citations
442k
11.1 per fractional work
Top-10% rate
4.1%
all institutions 10.0%
vs its own fields
0.48×
1.00× is exactly expected
Open access
51%
world 40%
International
9%
world 18%
Nihon University

What is Nihon University known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #3,574 of 10,670 2.2%1,357 #2886
Health SciencesDomain #3,743 of 9,902 5.4%1,494 #5089
MedicineField #3,354 of 8,541 5.6%1,236 #4461
DentistryField #273 of 405 5.2%143 #442
SurgerySubfield #1,043 of 1,532 4.9%177 #2012
Cardiology and Cardiovascular MedicineSubfield #530 of 736 9.3%106 #1094
Physics and AstronomyField #1,068 of 1,417 1.9%124 #1455
EpidemiologySubfield #719 of 927 2.7%85 #1376
Social SciencesDomain #7,609 of 9,585 4.6%401 #10463
Pulmonary and Respiratory MedicineSubfield #851 of 1,037 4.4%124 #1600

Each strip is that field's whole ranked pool, with the notch where Nihon University 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which of those standings moved

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

  1. Physical Sciences#2,886 #3,574
  2. Health Sciences#5,089 #3,743
  3. Medicine#4,461 #3,354
  4. Dentistry#442 #273
  5. Surgery#2,012 #1,043
  6. Cardiology and Cardiovascular Medicine#1,094 #530
  7. Physics and Astronomy#1,455 #1,068
  8. Epidemiology#1,376 #719
  9. Social Sciences#10,463 #7,609
  10. Pulmonary and Respiratory Medicine#1,600 #851
all time2022-now, better2022-now, worse

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

Which fields of science does Nihon University work in?

In 2022-now, 40% of research at Nihon University is in Health Sciences, 35% in Physical Sciences. Its largest fields are Medicine (33%), Engineering (15%), Biochemistry, Genetics and Molecular Biology (8%). It does 1.7× the world's share of Health Sciences.

Health Sciences: 1,670 fractional works · 39.6% of its workMedicine: 1,383 fractional works · 32.8% of its workSurgery: 198 fractional works · 4.7% of its workPulmonary and Respiratory Medicine: 138 fractional works · 3.3% of its workCardiology and Cardiovascular Medicine: 117 fractional works · 2.8% of its workEpidemiology: 95 fractional works · 2.2% of its workPhysiology: 93 fractional works · 2.2% of its workRadiology, Nuclear Medicine and Imaging: 80 fractional works · 1.9% of its workOncology: 62 fractional works · 1.5% of its workNeurology: 58 fractional works · 1.4% of its workRheumatology: 42 fractional works · 1.0% of its workPathology and Forensic Medicine: 40 fractional works · 0.9% of its workEndocrinology, Diabetes and Metabolism: 38 fractional works · 0.9% of its workInfectious Diseases: 36 fractional works · 0.9% of its workPublic Health, Environmental and Occupational Health: 36 fractional works · 0.9% of its workHepatology: 27 fractional works · 0.6% of its workOphthalmology: 25 fractional works · 0.6% of its workPediatrics, Perinatology and Child Health: 24 fractional works · 0.6% of its workPharmacology: 23 fractional works · 0.5% of its workHematology: 22 fractional works · 0.5% of its workGenetics: 21 fractional works · 0.5% of its workNephrology: 19 fractional works · 0.4% of its workPsychiatry and Mental health: 19 fractional works · 0.4% of its workUrology: 18 fractional works · 0.4% of its workOrthopedics and Sports Medicine: 18 fractional works · 0.4% of its workDermatology: 16 fractional works · 0.4% of its workObstetrics and Gynecology: 14 fractional works · 0.3% of its workCritical Care and Intensive Care Medicine: 12 fractional works · 0.3% of its workAnesthesiology and Pain Medicine: 11 fractional works · 0.3% of its workOtorhinolaryngology: 11 fractional works · 0.3% of its workEmergency Medicine: 10 fractional works · 0.2% of its workGastroenterology: 10 fractional works · 0.2% of its workSmaller subfields together: 50 fractional works · 1.2% of its workDentistry: 159 fractional works · 3.8% of its workOral Surgery: 60 fractional works · 1.4% of its workOrthodontics: 48 fractional works · 1.1% of its workPeriodontics: 44 fractional works · 1.0% of its workSmaller subfields together: 8 fractional works · 0.2% of its workHealth Professions: 90 fractional works · 2.1% of its workComplementary and Manual Therapy: 26 fractional works · 0.6% of its workGeneral Health Professions: 17 fractional works · 0.4% of its workSpeech and Hearing: 16 fractional works · 0.4% of its workEmergency Medical Services: 10 fractional works · 0.2% of its workSmaller subfields together: 21 fractional works · 0.5% of its workNursing: 23 fractional works · 0.5% of its workNutrition and Dietetics: 21 fractional works · 0.5% of its workSmaller subfields together: 2 fractional works · 0.0% of its workVeterinary: 15 fractional works · 0.4% of its workSmall Animals: 14 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.0% of its workPhysical Sciences: 1,485 fractional works · 35.2% of its workEngineering: 638 fractional works · 15.1% of its workBiomedical Engineering: 111 fractional works · 2.6% of its workElectrical and Electronic Engineering: 86 fractional works · 2.0% of its workCivil and Structural Engineering: 80 fractional works · 1.9% of its workAerospace Engineering: 76 fractional works · 1.8% of its workMechanical Engineering: 63 fractional works · 1.5% of its workComputational Mechanics: 37 fractional works · 0.9% of its workControl and Systems Engineering: 36 fractional works · 0.8% of its workMechanics of Materials: 31 fractional works · 0.7% of its workOcean Engineering: 29 fractional works · 0.7% of its workBuilding and Construction: 28 fractional works · 0.7% of its workAutomotive Engineering: 23 fractional works · 0.6% of its workIndustrial and Manufacturing Engineering: 14 fractional works · 0.3% of its workMedia Technology: 12 fractional works · 0.3% of its workSmaller subfields together: 10 fractional works · 0.2% of its workComputer Science: 184 fractional works · 4.4% of its workArtificial Intelligence: 61 fractional works · 1.4% of its workComputer Vision and Pattern Recognition: 32 fractional works · 0.8% of its workComputer Networks and Communications: 19 fractional works · 0.4% of its workComputational Theory and Mathematics: 18 fractional works · 0.4% of its workInformation Systems: 15 fractional works · 0.4% of its workSignal Processing: 11 fractional works · 0.3% of its workSmaller subfields together: 28 fractional works · 0.7% of its workEnvironmental Science: 156 fractional works · 3.7% of its workNature and Landscape Conservation: 45 fractional works · 1.1% of its workEcology: 32 fractional works · 0.7% of its workGlobal and Planetary Change: 23 fractional works · 0.5% of its workEnvironmental Engineering: 11 fractional works · 0.3% of its workManagement, Monitoring, Policy and Law: 10 fractional works · 0.2% of its workIndustrial and Manufacturing Engineering: 10 fractional works · 0.2% of its workSmaller subfields together: 27 fractional works · 0.6% of its workMaterials Science: 143 fractional works · 3.4% of its workMaterials Chemistry: 79 fractional works · 1.9% of its workElectronic, Optical and Magnetic Materials: 27 fractional works · 0.6% of its workBiomaterials: 17 fractional works · 0.4% of its workPolymers and Plastics: 9 fractional works · 0.2% of its workSmaller subfields together: 12 fractional works · 0.3% of its workPhysics and Astronomy: 138 fractional works · 3.3% of its workAtomic and Molecular Physics, and Optics: 47 fractional works · 1.1% of its workNuclear and High Energy Physics: 27 fractional works · 0.7% of its workAstronomy and Astrophysics: 26 fractional works · 0.6% of its workStatistical and Nonlinear Physics: 16 fractional works · 0.4% of its workCondensed Matter Physics: 14 fractional works · 0.3% of its workSmaller subfields together: 9 fractional works · 0.2% of its workMathematics: 73 fractional works · 1.7% of its workApplied Mathematics: 18 fractional works · 0.4% of its workGeometry and Topology: 16 fractional works · 0.4% of its workMathematical Physics: 12 fractional works · 0.3% of its workAlgebra and Number Theory: 11 fractional works · 0.3% of its workSmaller subfields together: 16 fractional works · 0.4% of its workChemistry: 63 fractional works · 1.5% of its workOrganic Chemistry: 31 fractional works · 0.7% of its workSpectroscopy: 15 fractional works · 0.4% of its workSmaller subfields together: 18 fractional works · 0.4% of its workEarth and Planetary Sciences: 44 fractional works · 1.0% of its workAtmospheric Science: 13 fractional works · 0.3% of its workGeophysics: 9 fractional works · 0.2% of its workSmaller subfields together: 22 fractional works · 0.5% of its workChemical Engineering: 28 fractional works · 0.7% of its workFluid Flow and Transfer Processes: 14 fractional works · 0.3% of its workSmaller subfields together: 14 fractional works · 0.3% of its workEnergy: 18 fractional works · 0.4% of its workRenewable Energy, Sustainability and the Environment: 16 fractional works · 0.4% of its workSmaller subfields together: 2 fractional works · 0.0% of its workLife Sciences: 625 fractional works · 14.8% of its workBiochemistry, Genetics and Molecular Biology: 319 fractional works · 7.6% of its workMolecular Biology: 169 fractional works · 4.0% of its workGenetics: 49 fractional works · 1.2% of its workCell Biology: 30 fractional works · 0.7% of its workCancer Research: 23 fractional works · 0.5% of its workBiotechnology: 13 fractional works · 0.3% of its workSmaller subfields together: 36 fractional works · 0.9% of its workNeuroscience: 110 fractional works · 2.6% of its workCognitive Neuroscience: 35 fractional works · 0.8% of its workCellular and Molecular Neuroscience: 28 fractional works · 0.7% of its workNeurology: 17 fractional works · 0.4% of its workSensory Systems: 13 fractional works · 0.3% of its workEndocrine and Autonomic Systems: 10 fractional works · 0.2% of its workSmaller subfields together: 8 fractional works · 0.2% of its workAgricultural and Biological Sciences: 101 fractional works · 2.4% of its workPlant Science: 35 fractional works · 0.8% of its workEcology, Evolution, Behavior and Systematics: 19 fractional works · 0.4% of its workFood Science: 18 fractional works · 0.4% of its workSmaller subfields together: 30 fractional works · 0.7% of its workImmunology and Microbiology: 74 fractional works · 1.8% of its workImmunology: 54 fractional works · 1.3% of its workParasitology: 9 fractional works · 0.2% of its workMicrobiology: 9 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.0% of its workPharmacology, Toxicology and Pharmaceutics: 20 fractional works · 0.5% of its workPharmacology: 11 fractional works · 0.3% of its workSmaller subfields together: 9 fractional works · 0.2% of its workSocial Sciences: 438 fractional works · 10.4% of its workSocial Sciences: 189 fractional works · 4.5% of its workSociology and Political Science: 60 fractional works · 1.4% of its workTransportation: 32 fractional works · 0.8% of its workEducation: 18 fractional works · 0.4% of its workCultural Studies: 15 fractional works · 0.4% of its workPolitical Science and International Relations: 11 fractional works · 0.3% of its workDemography: 9 fractional works · 0.2% of its workSmaller subfields together: 44 fractional works · 1.0% of its workPsychology: 91 fractional works · 2.2% of its workSocial Psychology: 31 fractional works · 0.7% of its workExperimental and Cognitive Psychology: 30 fractional works · 0.7% of its workClinical Psychology: 13 fractional works · 0.3% of its workDevelopmental and Educational Psychology: 12 fractional works · 0.3% of its workSmaller subfields together: 5 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 56 fractional works · 1.3% of its workEconomics and Econometrics: 37 fractional works · 0.9% of its workFinance: 14 fractional works · 0.3% of its workSmaller subfields together: 4 fractional works · 0.1% of its workBusiness, Management and Accounting: 48 fractional works · 1.1% of its workStrategy and Management: 15 fractional works · 0.4% of its workAccounting: 14 fractional works · 0.3% of its workSmaller subfields together: 19 fractional works · 0.5% of its workArts and Humanities: 41 fractional works · 1.0% of its workDecision Sciences: 13 fractional works · 0.3% of its workALL ITS WORKNihon University4,218fractional works, 2022-now
Life Sciences15%Physical Sciences35%Health Sciences40%Social Sciences10%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 26 fields, with their numbers
  1. Health Sciences1,67039.6%
    1. Medicine1,38332.8%
    2. Dentistry1593.8%
    3. Health Professions902.1%
    4. Nursing230.5%
    5. Veterinary150.4%
    1. Engineering63815.1%
    2. Computer Science1844.4%
    3. Environmental Science1563.7%
    4. Materials Science1433.4%
    5. Physics and Astronomy1383.3%
    6. Mathematics731.7%
    7. Chemistry631.5%
    8. Earth and Planetary Sciences441.0%
    9. Chemical Engineering280.7%
    10. Energy180.4%
    1. Biochemistry, Genetics and Molecular Biology3197.6%
    2. Neuroscience1102.6%
    3. Agricultural and Biological Sciences1012.4%
    4. Immunology and Microbiology741.8%
    5. Pharmacology, Toxicology and Pharmaceutics200.5%
    1. Social Sciences1894.5%
    2. Psychology912.2%
    3. Economics, Econometrics and Finance561.3%
    4. Business, Management and Accounting481.1%
    5. Arts and Humanities411.0%
    6. Decision Sciences130.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Nihon University specialise in?

Where its research is concentrated relative to its size: Complementary and Manual Therapy takes 14.7× the share of its output that it takes of world research.

  1. Complementary and Manual TherapySubfield · 25.9 works15×
  2. OrthodonticsSubfield · 47.5 works10×
  3. DentistryField · 158.9 works7.8×
  4. PeriodonticsSubfield · 43.9 works7.6×
  5. Oral SurgerySubfield · 59.6 works7.3×
  6. Nature and Landscape ConservationSubfield · 44.5 works4.4×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

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: 0.51× its world share, 101 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.42× its world share, 319 worksBiochemistry, Geneti…Immunology and Microbiology: 1.74× its world share, 74 worksImmunology and Micro…Neuroscience: 1.61× its world share, 110 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.36× its world share, 20 worksPharmacology, Toxico…Chemical Engineering: 1.87× its world share, 28 worksChemical EngineeringChemistry: 0.96× its world share, 63 worksChemistryComputer Science: 0.56× its world share, 184 worksComputer ScienceEarth and Planetary Sciences: 0.67× its world share, 44 worksEarth and Planetary …Energy: 0.46× its world share, 18 worksEnergyEngineering: 1.01× its world share, 638 worksEngineeringEnvironmental Science: 0.75× its world share, 156 worksEnvironmental ScienceMaterials Science: 0.97× its world share, 144 worksMaterials ScienceMathematics: 1.47× its world share, 73 worksMathematicsPhysics and Astronomy: 1.47× its world share, 138 worksPhysics and AstronomyDentistry: 7.77× its world share, 159 worksDentistryHealth Professions: 0.81× its world share, 90 worksHealth ProfessionsMedicine: 1.70× its world share, 1,383 worksMedicineNursing: 1.12× its world share, 23 worksNursingVeterinary: 2.70× its world share, 16 worksVeterinaryArts and Humanities: 0.34× its world share, 41 worksArts and HumanitiesBusiness, Management and Accounting: 0.35× its world share, 48 worksBusiness, Management…Decision Sciences: 0.33× its world share, 14 worksDecision SciencesEconomics, Econometrics and Finance: 0.62× its world share, 56 worksEconomics, Econometr…Psychology: 0.71× its world share, 91 worksPsychologySocial Sciences: 0.35× its world share, 189 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 7.8×. Every wedge is a field page.

All 26 fields, with their numbers
  1. Dentistry7.77×159 works
  2. Veterinary2.70×16 works
  3. Chemical Engineering1.87×28 works
  4. Immunology and Microbiology1.74×74 works
  5. Medicine1.70×1,383 works
  6. Neuroscience1.61×110 works
  7. Mathematics1.47×73 works
  8. Physics and Astronomy1.47×138 works
  9. Biochemistry, Genetics and Molecular Biology1.42×319 works
  10. Pharmacology, Toxicology and Pharmaceutics1.36×20 works
  11. Nursing1.12×23 works
  12. Engineering1.01×638 works
  13. Materials Science0.97×144 works
  14. Chemistry0.96×63 works
  15. Health Professions0.81×90 works
  16. Environmental Science0.75×156 works
  17. Psychology0.71×91 works
  18. Earth and Planetary Sciences0.67×44 works
  19. Economics, Econometrics and Finance0.62×56 works
  20. Computer Science0.56×184 works
  21. Agricultural and Biological Sciences0.51×101 works
  22. Energy0.46×18 works
  23. Business, Management and Accounting0.35×48 works
  24. Social Sciences0.35×189 works
  25. Arts and Humanities0.34×41 works
  26. Decision Sciences0.33×14 works

Who are the top researchers at Nihon University?

Ranked on the quality score, Takuji Gotoda, Yasuhiko Saito and A. Tsukamoto lead among researchers whose main affiliation is Nihon University.

  1. 1 Takuji Gotoda Japan · #144,450 worldwide 24k citations · 526 works
  2. 2 Yasuhiko Saito Japan · #352,899 worldwide 6.3k citations · 187 works
  3. 3 A. Tsukamoto Japan · #471,475 worldwide 9.2k citations · 199 works
  4. 4 Kotaro Tamaoka Japan · #658,102 worldwide 752 citations · 40 works
  5. 5 Hiroki Hill Kobayashi Japan · #707,939 worldwide 3.3k citations · 220 works
  6. 6 Yasusada Murata Japan · #789,546 worldwide 1.1k citations · 78 works
  7. 7 Tadatoshi Takayama Japan · #903,884 worldwide 28k citations · 729 works
  8. 8 Ryusaburo Mori Japan · #1,019,695 worldwide 3.4k citations · 136 works
  9. 9 Shigeharu Hosono Japan · #1,066,839 worldwide 3.6k citations · 104 works
  10. 10 Taira Wada Japan · #1,137,005 worldwide 3.8k citations · 57 works
All ranked researchers at Nihon University

What are the most cited papers from Nihon University?

The most cited paper from Nihon University is "Increased oxidative stress in obesity and its impact on metabolic syndrome" (Shigetada Furukawa, Takuya Fujita, Michio Shimabukuro et al., 2004), with 5,349 citations. Next come "Clinical Targets for Continuous Glucose Monitoring Data Interpretation: Recommendations From the International Consensus on Time in Range" (4,012) and "Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition) 1" (2,743).

Most cited papers
#PaperReleasedCitations
1 Increased oxidative stress in obesity and its impact on metabolic syndrome Shigetada Furukawa, Takuya Fujita, Michio Shimabukuro et al. · Journal of Clinical Investigation Open access 15 Dec 2004 5,349
2 Clinical Targets for Continuous Glucose Monitoring Data Interpretation: Recommendations From the International Consensus on Time in Range Tadej Battelino et al. · Diabetes Care Open access 8 Jun 2019 4,012
3 Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition) 1 Daniel J. Klionsky et al. · Autophagy Open access2,930 authors 2 Jan 2021 2,743
4 MassBank: a public repository for sharing mass spectral data for life sciences Hisayuki Horai et al. · Journal of Mass Spectrometry Open access Jul 2010 2,595
5 Adjuvant Chemotherapy for Gastric Cancer with S-1, an Oral Fluoropyrimidine Shinichi Sakuramoto, Mitsuru Sasako, Toshiharu Yamaguchi et al. · New England Journal of Medicine Open access 31 Oct 2007 2,547
All 60 most cited papers, with filters and sorting

Which keywords describe research at Nihon University?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Inflammation, Treatment, Quality of Life, Diagnostic Criteria, Diagnosis, Diabetes Mellitus and Dental Caries.

▲ 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-now 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. Epidemiology296▲ 1.76×123 topics
  2. Inflammation181▲ 2.0×80 topics
  3. Treatment108▲ 2.1×45 topics
  4. Quality of Life102▲ 1.68×48 topics
  5. Oxidative Stress81▲ 1.16×56 topics
  6. Diagnosis80▲ 2.0×38 topics
  7. Cardiovascular Disease76▲ 1.57×36 topics
  8. Cancer71▲ 1.25×53 topics
  9. Risk Factors66▲ 1.42×31 topics
  10. Immunotherapy58▲ 1.90×19 topics
  11. Heart Failure57▲ 3.0×13 topics
  12. Management54▲ 1.61×32 topics
  13. Chemotherapy54▲ 1.80×25 topics
  14. Clinical Trials54▲ 1.91×18 topics
  15. Biodiversity53▲ 1.66×24 topics
  16. Diagnostic Criteria53▲ 5.4×10 topics
  17. Surgical Management51▲ 3.0×19 topics
  18. Clinical Practice Guidelines48▲ 2.1×14 topics
  19. Diabetes Mellitus47▲ 5.4×7 topics
  20. Neurological Disorders46▲ 1.93×20 topics
  21. Prognostic Factors42▲ 2.3×14 topics
  22. Echocardiography39▲ 3.4×8 topics
  23. Dental Caries38▲ 8.9×2 topics
  24. Ecosystem Management37▲ 15×2 topics
  25. Catheter Ablation37▲ 7.1×2 topics
  26. Satoyama37▲ 91×1 topic
  27. landscape conservation37▲ 91×1 topic
  28. Psychological Factors35▲ 4.0×6 topics
  29. Bone Regeneration29▲ 5.9×2 topics
  30. Bacterial Diversity29▲ 5.8×2 topics
  31. Radiofrequency Ablation28▲ 6.3×2 topics
  32. Inflammatory Pathways27▲ 9.3×2 topics
  33. Oral Microbiome27▲ 11×1 topic
  34. Periodontal Diseases27▲ 11×1 topic
  35. Bruxism25▲ 21×1 topic
  36. Temporomandibular Disorders25▲ 21×1 topic
  37. Arrhythmias25▲ 6.3×2 topics
  38. Dental Implants22▲ 11×1 topic
  39. Dental Materials22▲ 9.7×1 topic
  40. Peri-implant Diseases22▲ 11×1 topic

Which research topics does Nihon University publish most on?

By volume in 2022-now: Urban and spatial planning, Oral microbiology and periodontitis research, Temporomandibular Joint Disorders and Dental materials and restorations.

Urban and spatial planning37Urban and spatial planning: 37 fractional worksOral microbiology and pe…27Oral microbiology and periodontitis research: 27 fractional worksTemporomandibular Joint …25Temporomandibular Joint Disorders: 25 fractional worksDental materials and res…22Dental materials and restorations: 22 fractional worksDental Implant Techniques and Outcomes: 22 fractional worksAtrial Fibrillation Management and Outcomes: 19 fractional worksCardiac Arrhythmias and …17Cardiac Arrhythmias and Treatments: 17 fractional worksDental Radiography and Imaging: 15 fractional worksCardiac Imaging and Diagnostics: 14 fractional worksOrthodontics and Dentofacial Orthopedics: 14 fractional works
Nature and Landscape ConservationPeriodonticsComplementary and Manual TherapyOrthodontics3 others

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

  1. 1 Urban and spatial planning Nature and Landscape Conservation 37 works
  2. 2 Oral microbiology and periodontitis research Periodontics 27 works
  3. 3 Temporomandibular Joint Disorders Complementary and Manual Therapy 25 works
  4. 4 Dental materials and restorations Orthodontics 22 works
  5. 5 Dental Implant Techniques and Outcomes Oral Surgery 22 works
  6. 6 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 19 works
  7. 7 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 17 works
  8. 8 Dental Radiography and Imaging Oral Surgery 15 works
  9. 9 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 14 works
  10. 10 Orthodontics and Dentofacial Orthopedics Orthodontics 14 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 available51.1%not open48.9%

World: 40% of research is openly available.

with international co-authors9.1%domestic only90.9%

World: 18% is written across borders.

How has Nihon University's research output changed?

Output in 2022-2025 was 16% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Nihon University as a percentage of every work published that year, 0.017% in 2024.

still counting0.025%0.050%0.075%Nihon University0.016% in 202519801990200020102020

Fractional works of Nihon University over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Nihon University4.3% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 4.9% in 2007.

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Nihon University on Science Explorer

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