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University · Ibaraki · Japan

Tsukuba International University

In research, Tsukuba International University stands highest in Life Sciences (#2,055 of 6,403 worldwide), 2022-now. Relative to its size it is most specialised in Cognitive Neuroscience and Neuroscience (Cognitive Neuroscience is 15.3× its share of world research).

ktt.ac.jp/tiuROR OpenAlex
World rank, 2022-now
#5,164
of 22,385 · #3,422 all time
Rank in Japan
#113
of 924
Research works
580
▲ 22% vs 2018-21
Citations
8.6k
14.9 per fractional work
Top-10% rate
7.4%
all institutions 10.0%
vs its own fields
0.94×
1.00× is exactly expected
Open access
62%
world 40%
International
21%
world 18%
Tsukuba International University

What is Tsukuba International 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
Life SciencesDomain #2,055 of 6,403 7.5%62 #1605

Each strip is that field's whole ranked pool, with the notch where Tsukuba International 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 fields of science does Tsukuba International University work in?

In 2022-now, 32% of research at Tsukuba International University is in Life Sciences, 27% in Physical Sciences. Its largest fields are Neuroscience (22%), Medicine (21%), Psychology (10%). It does 2.3× the world's share of Life Sciences.

Life Sciences: 71 fractional works · 31.7% of its workNeuroscience: 50 fractional works · 22.4% of its workCognitive Neuroscience: 25 fractional works · 11.2% of its workCellular and Molecular Neuroscience: 8 fractional works · 3.7% of its workEndocrine and Autonomic Systems: 8 fractional works · 3.6% of its workDevelopmental Neuroscience: 3 fractional works · 1.1% of its workBehavioral Neuroscience: 2 fractional works · 1.0% of its workNeurology: 2 fractional works · 0.9% of its workSensory Systems: 1 fractional works · 0.5% of its workBiological Psychiatry: 1 fractional works · 0.3% of its workBiochemistry, Genetics and Molecular Biology: 17 fractional works · 7.6% of its workMolecular Biology: 11 fractional works · 4.9% of its workGenetics: 2 fractional works · 1.0% of its workCell Biology: 1 fractional works · 0.6% of its workCancer Research: 1 fractional works · 0.3% of its workAging: 1 fractional works · 0.3% of its workBiophysics: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workImmunology and Microbiology: 2 fractional works · 0.9% of its workImmunology: 2 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.1% of its workAgricultural and Biological Sciences: 1 fractional works · 0.6% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workPhysical Sciences: 60 fractional works · 26.9% of its workComputer Science: 19 fractional works · 8.7% of its workComputational Theory and Mathematics: 6 fractional works · 2.6% of its workArtificial Intelligence: 5 fractional works · 2.4% of its workInformation Systems: 3 fractional works · 1.4% of its workSignal Processing: 2 fractional works · 0.9% of its workComputer Networks and Communications: 2 fractional works · 0.7% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.4% of its workHuman-Computer Interaction: 1 fractional works · 0.3% of its workMathematics: 18 fractional works · 7.9% of its workApplied Mathematics: 10 fractional works · 4.3% of its workMathematical Physics: 4 fractional works · 1.6% of its workStatistics and Probability: 2 fractional works · 0.9% of its workGeometry and Topology: 2 fractional works · 0.8% of its workNumerical Analysis: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workEngineering: 11 fractional works · 4.7% of its workBiomedical Engineering: 4 fractional works · 1.8% of its workAerospace Engineering: 2 fractional works · 0.7% of its workElectrical and Electronic Engineering: 1 fractional works · 0.4% of its workComputational Mechanics: 1 fractional works · 0.4% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 0.3% of its workControl and Systems Engineering: 1 fractional works · 0.3% of its workCivil and Structural Engineering: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnvironmental Science: 5 fractional works · 2.1% of its workManagement, Monitoring, Policy and Law: 2 fractional works · 0.8% of its workGlobal and Planetary Change: 1 fractional works · 0.5% of its workEcology: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workChemistry: 4 fractional works · 1.7% of its workOrganic Chemistry: 3 fractional works · 1.2% of its workInorganic Chemistry: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workPhysics and Astronomy: 3 fractional works · 1.3% of its workAstronomy and Astrophysics: 1 fractional works · 0.5% of its workRadiation: 1 fractional works · 0.3% of its workStatistical and Nonlinear Physics: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMaterials Science: 1 fractional works · 0.3% of its workMaterials Chemistry: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 1 fractional works · 0.3% of its workHealth Sciences: 56 fractional works · 24.9% of its workMedicine: 48 fractional works · 21.4% of its workPhysiology: 8 fractional works · 3.4% of its workSurgery: 4 fractional works · 1.8% of its workRadiology, Nuclear Medicine and Imaging: 4 fractional works · 1.7% of its workEpidemiology: 3 fractional works · 1.5% of its workOrthopedics and Sports Medicine: 3 fractional works · 1.2% of its workCardiology and Cardiovascular Medicine: 3 fractional works · 1.2% of its workRheumatology: 2 fractional works · 1.1% of its workPublic Health, Environmental and Occupational Health: 2 fractional works · 1.0% of its workPulmonary and Respiratory Medicine: 2 fractional works · 1.0% of its workPediatrics, Perinatology and Child Health: 2 fractional works · 0.8% of its workPharmacology: 2 fractional works · 0.8% of its workNeurology: 2 fractional works · 0.7% of its workNephrology: 1 fractional works · 0.6% of its workPsychiatry and Mental health: 1 fractional works · 0.5% of its workRehabilitation: 1 fractional works · 0.5% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.5% of its workOncology: 1 fractional works · 0.4% of its workComplementary and alternative medicine: 1 fractional works · 0.4% of its workPathology and Forensic Medicine: 1 fractional works · 0.3% of its workGastroenterology: 1 fractional works · 0.2% of its workImmunology and Allergy: 1 fractional works · 0.2% of its workGeriatrics and Gerontology: 0 fractional works · 0.2% of its workInfectious Diseases: 0 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 1.2% of its workHealth Professions: 6 fractional works · 2.7% of its workGeneral Health Professions: 2 fractional works · 0.9% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 2 fractional works · 0.8% of its workSpeech and Hearing: 1 fractional works · 0.4% of its workEmergency Medical Services: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workNursing: 2 fractional works · 0.7% of its workNutrition and Dietetics: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.5% of its workDentistry: 0 fractional works · 0.1% of its workSocial Sciences: 37 fractional works · 16.5% of its workPsychology: 21 fractional works · 9.5% of its workExperimental and Cognitive Psychology: 13 fractional works · 5.8% of its workSocial Psychology: 5 fractional works · 2.2% of its workClinical Psychology: 2 fractional works · 0.9% of its workDevelopmental and Educational Psychology: 1 fractional works · 0.4% of its workApplied Psychology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 6 fractional works · 2.8% of its workSociology and Political Science: 3 fractional works · 1.5% of its workEducation: 1 fractional works · 0.4% of its workPolitical Science and International Relations: 0 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.7% of its workDecision Sciences: 3 fractional works · 1.4% of its workInformation Systems and Management: 1 fractional works · 0.6% of its workManagement Science and Operations Research: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workArts and Humanities: 3 fractional works · 1.3% of its workLanguage and Linguistics: 1 fractional works · 0.3% of its workHistory: 1 fractional works · 0.3% of its workVisual Arts and Performing Arts: 1 fractional works · 0.3% of its workPhilosophy: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 2 fractional works · 1.0% of its workFinance: 2 fractional works · 0.7% of its workEconomics and Econometrics: 1 fractional works · 0.3% of its workBusiness, Management and Accounting: 1 fractional works · 0.4% of its workManagement Information Systems: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workALL ITS WORKTsukubaInternational…224fractional works, 2022-now
Life Sciences32%Physical Sciences27%Health Sciences25%Social Sciences17%

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 23 fields, with their numbers
    1. Neuroscience5022.4%
    2. Biochemistry, Genetics and Molecular Biology177.6%
    3. Immunology and Microbiology20.9%
    4. Agricultural and Biological Sciences10.6%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
    1. Computer Science198.7%
    2. Mathematics187.9%
    3. Engineering114.7%
    4. Environmental Science52.1%
    5. Chemistry41.7%
    6. Physics and Astronomy31.3%
    7. Materials Science10.3%
    8. Earth and Planetary Sciences10.3%
    1. Medicine4821.4%
    2. Health Professions62.7%
    3. Nursing20.7%
    4. Dentistry00.1%
    1. Psychology219.5%
    2. Social Sciences62.8%
    3. Decision Sciences31.4%
    4. Arts and Humanities31.3%
    5. Economics, Econometrics and Finance21.0%
    6. Business, Management and Accounting10.4%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Tsukuba International University specialise in?

Where its research is concentrated relative to its size: Cognitive Neuroscience takes 15.3× the share of its output that it takes of world research.

  1. Cognitive NeuroscienceSubfield · 25.0 works15×
  2. NeuroscienceField · 50.1 works14×
← 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: 0.14× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.43× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 0.88× its world share, 2 worksImmunology and Micro…Neuroscience: 13.79× its world share, 50 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.41× its world share, 0 worksPharmacology, Toxico…Chemistry: 1.11× its world share, 4 worksChemistryComputer Science: 1.11× its world share, 19 worksComputer ScienceEarth and Planetary Sciences: 0.16× its world share, 1 worksEarth and Planetary …Engineering: 0.31× its world share, 11 worksEngineeringEnvironmental Science: 0.41× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.10× its world share, 1 worksMaterials ScienceMathematics: 6.69× its world share, 18 worksMathematicsPhysics and Astronomy: 0.58× its world share, 3 worksPhysics and AstronomyDentistry: 0.19× its world share, 0 worksDentistryHealth Professions: 1.03× its world share, 6 worksHealth ProfessionsMedicine: 1.11× its world share, 48 worksMedicineNursing: 1.37× its world share, 2 worksNursingArts and Humanities: 0.44× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.14× its world share, 1 worksBusiness, Management…Decision Sciences: 1.48× its world share, 3 worksDecision SciencesEconomics, Econometrics and Finance: 0.47× its world share, 2 worksEconomics, Econometr…Psychology: 3.13× its world share, 21 worksPsychologySocial Sciences: 0.22× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Neuroscience, 13.8×. Every wedge is a field page.

All 23 fields, with their numbers
  1. Neuroscience13.79×50 works
  2. Mathematics6.69×18 works
  3. Psychology3.13×21 works
  4. Decision Sciences1.48×3 works
  5. Biochemistry, Genetics and Molecular Biology1.43×17 works
  6. Nursing1.37×2 works
  7. Chemistry1.11×4 works
  8. Computer Science1.11×19 works
  9. Medicine1.11×48 works
  10. Health Professions1.03×6 works
  11. Immunology and Microbiology0.88×2 works
  12. Physics and Astronomy0.58×3 works
  13. Economics, Econometrics and Finance0.47×2 works
  14. Arts and Humanities0.44×3 works
  15. Pharmacology, Toxicology and Pharmaceutics0.41×0 works
  16. Environmental Science0.41×5 works
  17. Engineering0.31×11 works
  18. Social Sciences0.22×6 works
  19. Dentistry0.19×0 works
  20. Earth and Planetary Sciences0.16×1 works
  21. Agricultural and Biological Sciences0.14×1 works
  22. Business, Management and Accounting0.14×1 works
  23. Materials Science0.10×1 works

Who are the top researchers at Tsukuba International University?

Ranked on the quality score, Arisa Hirano, Noriko Hotta-Hirashima and Toshio Kokubo lead among researchers whose main affiliation is Tsukuba International University.

  1. 1 Arisa Hirano Japan · #646,640 worldwide 1.3k citations · 42 works
  2. 2 Noriko Hotta-Hirashima Japan · #919,911 worldwide 1.1k citations · 19 works
  3. 3 Toshio Kokubo Japan · #1,056,369 worldwide 2.2k citations · 75 works
  4. 4 Mika Kanuka Japan · #2,407,602 worldwide 450 citations · 19 works
  5. 5 Takashi Kanbayashi Japan · #2,428,114 worldwide 185 citations · 27 works
  6. 6 Satoru Kawata Japan · #2,532,129 worldwide 14 citations · 18 works
  7. 7 Noritaka Hatsumi Japan · #2,560,816 worldwide 14 citations · 17 works
  8. 7 Hikaru Kuwano Japan · #2,560,816 worldwide 14 citations · 17 works
  9. 7 Kouta Shichiji Japan · #2,560,816 worldwide 14 citations · 17 works
  10. 10 Mitsuaki Kashiwagi Japan · #2,577,856 worldwide 420 citations · 21 works
All ranked researchers at Tsukuba International University

What are the most cited papers from Tsukuba International University?

The most cited paper from Tsukuba International University is "SREBP-regulated lipid metabolism: convergent physiology — divergent pathophysiology" (Hitoshi Shimano, Ryuichiro Sato, 2017), with 1,207 citations. Next come "Locus coeruleus and dopaminergic consolidation of everyday memory" (896) and "Linear Thermal Expansion Coefficient of Silicon from 293 to 1000 K" (444).

Most cited papers
#PaperReleasedCitations
1 SREBP-regulated lipid metabolism: convergent physiology — divergent pathophysiology Hitoshi Shimano, Ryuichiro Sato · Nature Reviews Endocrinology Review 29 Aug 2017 1,207
2 Locus coeruleus and dopaminergic consolidation of everyday memory Tomonori Takeuchi, Adrian J. Duszkiewicz, Alex Sonneborn et al. · Nature Open access Sep 2016 896
3 Linear Thermal Expansion Coefficient of Silicon from 293 to 1000 K H. Watanabe, Naofumi YAMADA, Masahiro Okaji · International Journal of Thermophysics 2004 444
4 Dynorphin Acts as a Neuromodulator to Inhibit Itch in the Dorsal Horn of the Spinal Cord Adam P. Kardon, Erika Polgár, Junichi Hachisuka et al. · Neuron Open access 10 Apr 2014 376
5 Forward-genetics analysis of sleep in randomly mutagenized mice Hiromasa Funato et al. · Nature Open access Nov 2016 355
All 61 most cited papers, with filters and sorting

Which keywords describe research at Tsukuba International University?

By fractional works in 2022-now, weighted toward what it does more of than the world: Circadian Rhythms, Memory, Learning, Consolidation, Sleep, Epidemiology, Meta-Analysis and Cognitive Behavioral Therapy.

▲ 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. Circadian Rhythms20▲ 85×2 topics
  2. Epidemiology18▲ 2.0×40 topics
  3. Memory15▲ 28×5 topics
  4. Learning13▲ 20×2 topics
  5. Consolidation13▲ 143×1 topic
  6. Sleep13▲ 143×1 topic
  7. Oxidative Stress11▲ 2.9×25 topics
  8. Inflammation9▲ 1.91×40 topics
  9. Meta-Analysis9▲ 6.7×10 topics
  10. Cognitive Behavioral Therapy8▲ 25×3 topics
  11. Neurological Disorders8▲ 6.1×15 topics
  12. Gene Expression8▲ 5.4×10 topics
  13. Insomnia8▲ 47×1 topic
  14. Sleep Duration8▲ 50×1 topic
  15. Metabolism8▲ 6.4×10 topics
  16. Health Effects7▲ 5.3×8 topics
  17. Cardiovascular Disease7▲ 2.7×22 topics
  18. Metabolic Syndrome6▲ 3.5×11 topics
  19. Depression6▲ 3.0×14 topics
  20. Circadian Clock6▲ 71×1 topic
  21. Melatonin6▲ 71×1 topic
  22. Retinal Ganglion Cells6▲ 23×2 topics
  23. Neurobiology6▲ 9.4×6 topics
  24. Stress5▲ 5.8×7 topics
  25. Cognitive Performance5▲ 21×3 topics
  26. Neuronal Circuits4▲ 26×2 topics
  27. Synaptic Plasticity4▲ 9.1×5 topics
  28. Neural Circuits4▲ 20×3 topics
  29. Hippocampus4▲ 30×2 topics
  30. Dendritic Spines4▲ 24×2 topics
  31. Fatigue4▲ 16×2 topics
  32. Shift Work4▲ 56×1 topic
  33. Sleep Deprivation4▲ 56×1 topic
  34. Brain Development4▲ 9.9×4 topics
  35. GABAergic4▲ 33×1 topic
  36. Immune System4▲ 7.0×7 topics
  37. Neurotransmission4▲ 33×1 topic
  38. Motor Imagery4▲ 13×2 topics
  39. Brain-Computer Interfaces3▲ 16×1 topic
  40. EEG Analysis3▲ 16×1 topic

Which research topics does Tsukuba International University publish most on?

By volume in 2022-now: Sleep and Wakefulness Research, Sleep and related disorders, Circadian rhythm and melatonin and Sleep and Work-Related Fatigue.

Sleep and Wakefulness Re…13Sleep and Wakefulness Research: 13 fractional worksSleep and related disorders: 8 fractional worksCircadian rhythm and melatonin: 6 fractional worksSleep and Work-Related Fatigue: 4 fractional worksNeuroscience and Neuropharmacology Research: 4 fractional worksEEG and Brain-Computer I…3EEG and Brain-Computer Interfaces: 3 fractional worksAdvanced Mathematical Modeling in Engineering: 2 fractional worksStress Responses and Cortisol: 2 fractional worksMuscle Physiology and Disorders: 2 fractional worksNeurogenesis and neuroplasticity mechanisms: 2 fractional works
Cognitive NeuroscienceExperimental and Cognitive PsychologyEndocrine and Autonomic SystemsCellular and Molecular Neuroscience4 others

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

  1. 1 Sleep and Wakefulness Research Cognitive Neuroscience 13 works
  2. 2 Sleep and related disorders Experimental and Cognitive Psychology 8 works
  3. 3 Circadian rhythm and melatonin Endocrine and Autonomic Systems 6 works
  4. 4 Sleep and Work-Related Fatigue Experimental and Cognitive Psychology 4 works
  5. 5 Neuroscience and Neuropharmacology Research Cellular and Molecular Neuroscience 4 works
  6. 6 EEG and Brain-Computer Interfaces Cognitive Neuroscience 3 works
  7. 7 Advanced Mathematical Modeling in Engineering Computational Theory and Mathematics 2 works
  8. 8 Stress Responses and Cortisol Behavioral Neuroscience 2 works
  9. 9 Muscle Physiology and Disorders Molecular Biology 2 works
  10. 10 Neurogenesis and neuroplasticity mechanisms Developmental Neuroscience 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 available61.9%not open38.1%

World: 40% of research is openly available.

with international co-authors21.0%domestic only79.0%

World: 18% is written across borders.

How has Tsukuba International University's research output changed?

Output in 2022-2025 was 22% higher 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 Tsukuba International University as a percentage of every work published that year, 0.0012% in 2024.

still counting0.00050%0.0010%0.0015%Tsukuba International University0.0011% in 20251990200020102020

Fractional works of Tsukuba International 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 2025Tsukuba International University6.6% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 13.2% in 2017.

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Tsukuba International University on Science Explorer

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