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Government institution · Utsunomiya · Japan

Tochigi Prefectural Police

pref.tochigi.lg.jp/keisatuROR OpenAlex
World rank, all time
#28,872
of 34,923
Rank in Japan
#1,222
of 1,923
Research works
204
▼ 38% vs 2018-21
Citations
2.2k
10.6 per fractional work
Top-10% rate
4.0%
all institutions 10.0%
vs its own fields
0.81×
1.00× is exactly expected
Open access
66%
world 40%
International
11%
world 18%
Tochigi Prefectural Police

Which fields of science does Tochigi Prefectural Police work in?

In 2022-now, 33% of research at Tochigi Prefectural Police is in Life Sciences, 31% in Physical Sciences. Its largest fields are Medicine (21%), Agricultural and Biological Sciences (17%), Environmental Science (11%). It does 1.8× the world's share of Life Sciences.

Life Sciences: 8 fractional works · 33.3% of its workAgricultural and Biological Sciences: 4 fractional works · 17.2% of its workPlant Science: 1 fractional works · 5.3% of its workAgronomy and Crop Science: 1 fractional works · 4.8% of its workEcology, Evolution, Behavior and Systematics: 1 fractional works · 4.5% of its workInsect Science: 0 fractional works · 1.2% of its workAnimal Science and Zoology: 0 fractional works · 0.7% of its workForestry: 0 fractional works · 0.5% of its workSoil Science: 0 fractional works · 0.3% of its workBiochemistry, Genetics and Molecular Biology: 2 fractional works · 8.6% of its workMolecular Biology: 1 fractional works · 6.2% of its workCell Biology: 0 fractional works · 1.3% of its workGenetics: 0 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 1 fractional works · 3.7% of its workBiological Psychiatry: 0 fractional works · 1.1% of its workNeurology: 0 fractional works · 0.9% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.8% of its workBehavioral Neuroscience: 0 fractional works · 0.5% of its workCognitive Neuroscience: 0 fractional works · 0.3% of its workImmunology and Microbiology: 1 fractional works · 3.0% of its workMicrobiology: 1 fractional works · 2.2% of its workImmunology: 0 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.7% of its workToxicology: 0 fractional works · 0.7% of its workPhysical Sciences: 7 fractional works · 31.4% of its workEnvironmental Science: 3 fractional works · 11.5% of its workEcology: 1 fractional works · 5.9% of its workNature and Landscape Conservation: 1 fractional works · 3.1% of its workManagement, Monitoring, Policy and Law: 0 fractional works · 1.1% of its workHealth, Toxicology and Mutagenesis: 0 fractional works · 0.5% of its workEnvironmental Chemistry: 0 fractional works · 0.3% of its workGlobal and Planetary Change: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEngineering: 2 fractional works · 8.1% of its workBiomedical Engineering: 1 fractional works · 3.3% of its workMechanical Engineering: 0 fractional works · 1.5% of its workElectrical and Electronic Engineering: 0 fractional works · 1.4% of its workBuilding and Construction: 0 fractional works · 1.0% of its workMechanics of Materials: 0 fractional works · 0.7% of its workAerospace Engineering: 0 fractional works · 0.2% of its workMaterials Science: 1 fractional works · 6.1% of its workBiomaterials: 1 fractional works · 3.1% of its workMaterials Chemistry: 1 fractional works · 2.3% of its workElectronic, Optical and Magnetic Materials: 0 fractional works · 0.5% of its workPolymers and Plastics: 0 fractional works · 0.3% of its workComputer Science: 1 fractional works · 2.3% of its workArtificial Intelligence: 0 fractional works · 1.6% of its workComputer Networks and Communications: 0 fractional works · 0.3% of its workInformation Systems: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workChemistry: 0 fractional works · 1.2% of its workSpectroscopy: 0 fractional works · 0.7% of its workOrganic Chemistry: 0 fractional works · 0.5% of its workMathematics: 0 fractional works · 1.0% of its workStatistics and Probability: 0 fractional works · 0.7% of its workModeling and Simulation: 0 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.9% of its workAtomic and Molecular Physics, and Optics: 0 fractional works · 0.5% of its workCondensed Matter Physics: 0 fractional works · 0.5% of its workEarth and Planetary Sciences: 0 fractional works · 0.3% of its workPaleontology: 0 fractional works · 0.3% of its workHealth Sciences: 5 fractional works · 21.7% of its workMedicine: 5 fractional works · 20.7% of its workInfectious Diseases: 1 fractional works · 3.4% of its workSurgery: 1 fractional works · 2.3% of its workPulmonary and Respiratory Medicine: 0 fractional works · 1.7% of its workEpidemiology: 0 fractional works · 1.4% of its workPharmacology: 0 fractional works · 1.4% of its workDermatology: 0 fractional works · 1.4% of its workPhysiology: 0 fractional works · 1.1% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 1.0% of its workEmergency Medicine: 0 fractional works · 0.9% of its workPediatrics, Perinatology and Child Health: 0 fractional works · 0.8% of its workGeriatrics and Gerontology: 0 fractional works · 0.7% of its workOncology: 0 fractional works · 0.7% of its workEndocrinology, Diabetes and Metabolism: 0 fractional works · 0.6% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.6% of its workPsychiatry and Mental health: 0 fractional works · 0.5% of its workHematology: 0 fractional works · 0.5% of its workNeurology: 0 fractional works · 0.5% of its workPublic Health, Environmental and Occupational Health: 0 fractional works · 0.4% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.3% of its workUrology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.5% of its workSmall Animals: 0 fractional works · 0.5% of its workHealth Professions: 0 fractional works · 0.3% of its workGeneral Health Professions: 0 fractional works · 0.3% of its workDentistry: 0 fractional works · 0.3% of its workPeriodontics: 0 fractional works · 0.3% of its workSocial Sciences: 3 fractional works · 13.6% of its workPsychology: 2 fractional works · 7.1% of its workClinical Psychology: 1 fractional works · 2.7% of its workSocial Psychology: 0 fractional works · 2.0% of its workExperimental and Cognitive Psychology: 0 fractional works · 1.4% of its workDevelopmental and Educational Psychology: 0 fractional works · 0.9% of its workSocial Sciences: 1 fractional works · 6.1% of its workEducation: 0 fractional works · 2.1% of its workTransportation: 0 fractional works · 1.6% of its workDemography: 0 fractional works · 1.1% of its workSafety Research: 0 fractional works · 1.1% of its workSociology and Political Science: 0 fractional works · 0.2% of its workArts and Humanities: 0 fractional works · 0.5% of its workPhilosophy: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workALL ITS WORKTochigiPrefectural…24fractional works, 2022-now
Life Sciences33%Physical Sciences31%Health Sciences22%Social Sciences14%

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 20 fields, with their numbers
    1. Agricultural and Biological Sciences417.2%
    2. Biochemistry, Genetics and Molecular Biology28.6%
    3. Neuroscience13.7%
    4. Immunology and Microbiology13.0%
    5. Pharmacology, Toxicology and Pharmaceutics00.7%
    1. Environmental Science311.5%
    2. Engineering28.1%
    3. Materials Science16.1%
    4. Computer Science12.3%
    5. Chemistry01.2%
    6. Mathematics01.0%
    7. Physics and Astronomy00.9%
    8. Earth and Planetary Sciences00.3%
    1. Medicine520.7%
    2. Veterinary00.5%
    3. Health Professions00.3%
    4. Dentistry00.3%
    1. Psychology27.1%
    2. Social Sciences16.1%
    3. Arts and Humanities00.5%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 3.63× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.62× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 2.93× its world share, 1 worksImmunology and Micro…Neuroscience: 2.32× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 2.01× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.75× its world share, 0 worksChemistryComputer Science: 0.30× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 0.23× its world share, 0 worksEarth and Planetary …Engineering: 0.54× its world share, 2 worksEngineeringEnvironmental Science: 2.31× its world share, 3 worksEnvironmental ScienceMaterials Science: 1.74× its world share, 1 worksMaterials ScienceMathematics: 0.84× its world share, 0 worksMathematicsPhysics and Astronomy: 0.42× its world share, 0 worksPhysics and AstronomyDentistry: 0.49× its world share, 0 worksDentistryHealth Professions: 0.11× its world share, 0 worksHealth ProfessionsMedicine: 1.08× its world share, 5 worksMedicineVeterinary: 3.47× its world share, 0 worksVeterinaryArts and Humanities: 0.16× its world share, 0 worksArts and HumanitiesPsychology: 2.32× its world share, 2 worksPsychologySocial Sciences: 0.48× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Agricultural and Biological Sciences, 3.6×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Agricultural and Biological Sciences3.63×4 works
  2. Veterinary3.47×0 works
  3. Immunology and Microbiology2.93×1 works
  4. Neuroscience2.32×1 works
  5. Psychology2.32×2 works
  6. Environmental Science2.31×3 works
  7. Pharmacology, Toxicology and Pharmaceutics2.01×0 works
  8. Materials Science1.74×1 works
  9. Biochemistry, Genetics and Molecular Biology1.62×2 works
  10. Medicine1.08×5 works
  11. Mathematics0.84×0 works
  12. Chemistry0.75×0 works
  13. Engineering0.54×2 works
  14. Dentistry0.49×0 works
  15. Social Sciences0.48×1 works
  16. Physics and Astronomy0.42×0 works
  17. Computer Science0.30×1 works
  18. Earth and Planetary Sciences0.23×0 works
  19. Arts and Humanities0.16×0 works
  20. Health Professions0.11×0 works

Who are the top researchers at Tochigi Prefectural Police?

Ranked on the quality score, Hitoshi Aoyama, Tetsuya Maruyama and Shuji YONEYAMA lead among researchers whose main affiliation is Tochigi Prefectural Police.

  1. 1 Hitoshi Aoyama Japan · #2,783,132 worldwide 913 citations · 30 works
  2. 2 Tetsuya Maruyama Japan · #3,228,565 worldwide 209 citations · 17 works
  3. 3 Shuji YONEYAMA Japan · #4,420,637 worldwide 104 citations · 15 works
  4. 4 Sadayoshi UEDA Japan · #4,699,920 worldwide 8 citations · 17 works
  5. 5 H Aoyama Japan · #4,949,993 worldwide 260 citations · 18 works
  6. 6 Toshinori Sotome Japan · #4,971,086 worldwide 52 citations · 17 works
  7. 7 Toshiya Saito Japan · #5,004,815 worldwide 139 citations · 16 works
  8. 8 Keiji Funatogawa Japan · #5,397,888 worldwide 546 citations · 35 works
All ranked researchers at Tochigi Prefectural Police

What are the most cited papers from Tochigi Prefectural Police?

The most cited paper from Tochigi Prefectural Police is "Genetic Analysis of Human Norovirus Strains in Japan in 2016–2017" (Koo Nagasawa et al., 2018), with 1,265 citations. Next come "Infection with Hepatitis GB Virus C in Patients on Maintenance Hemodialysis" (434) and "Reasons for Permanent Tooth Extractions in Japan" (247).

Most cited papers
#PaperReleasedCitations
1 Genetic Analysis of Human Norovirus Strains in Japan in 2016–2017 Koo Nagasawa et al. · Frontiers in Microbiology Open access 17 Jan 2018 1,265
2 Infection with Hepatitis GB Virus C in Patients on Maintenance Hemodialysis Kazuo Masuko, Takehiro Mitsui, Keiko Iwano et al. · New England Journal of Medicine Open access 6 Jun 1996 434
3 Reasons for Permanent Tooth Extractions in Japan Jun Aida, Yuichi Ando, Rahena Akhter et al. · Journal of Epidemiology Open access 2006 247
4 ON THE MECHANISM OF THE DEVELOPMENT OF MULTIPLE‐DRUG‐RESISTANT CLONES OF SHIGELLA Tomoichiro Akiba, Kotaro Koyama, Yoshito Ishiki et al. · Japanese Journal of Microbiology Feb 1960 223
5 Genomic characterization of TT viruses (TTVs) in pigs, cats and dogs and their relatedness with species-specific TTVs in primates and tupaias Hiroaki Okamoto, Masaharu Takahashi, Tsutomu Nishizawa et al. · Journal of General Virology Jun 2002 214
All 59 most cited papers, with filters and sorting

Which research topics does Tochigi Prefectural Police publish most on?

By volume in 2022-now: Diatoms and Algae Research, Animal Disease Management and Epidemiology, Microbial infections and disease research and Vector-Borne Animal Diseases.

Diatoms and Algae Research1Diatoms and Algae Research: 1 fractional worksAnimal Disease Managemen…1Animal Disease Management and Epidemiology: 1 fractional worksMicrobial infections and…0Microbial infections and disease research: 0 fractional worksVector-Borne Animal Dise…0Vector-Borne Animal Diseases: 0 fractional worksBiosensors and Analytical Detection: 0 fractional worksViral Infectious Diseases and Gene Expression in Insects: 0 fractional worksMilk Quality and Mastiti…0Milk Quality and Mastitis in Dairy Cows: 0 fractional worksLuminescence and Fluorescent Materials: 0 fractional worksSARS-CoV-2 detection and testing: 0 fractional worksEarthquake and Disaster …0Earthquake and Disaster Impact Studies: 0 fractional works
BiomaterialsAgronomy and Crop ScienceMicrobiologyEcology, Evolution, Behavior and Systematics5 others

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

  1. 1 Diatoms and Algae Research Biomaterials 1 works
  2. 2 Animal Disease Management and Epidemiology Agronomy and Crop Science 1 works
  3. 3 Microbial infections and disease research Microbiology 0 works
  4. 4 Vector-Borne Animal Diseases Ecology, Evolution, Behavior and Systematics 0 works
  5. 5 Biosensors and Analytical Detection Biomedical Engineering 0 works
  6. 6 Viral Infectious Diseases and Gene Expression in Insects Molecular Biology 0 works
  7. 7 Milk Quality and Mastitis in Dairy Cows Agronomy and Crop Science 0 works
  8. 8 Luminescence and Fluorescent Materials Materials Chemistry 0 works
  9. 9 SARS-CoV-2 detection and testing Infectious Diseases 0 works
  10. 10 Earthquake and Disaster Impact Studies Transportation 0 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 available66.0%not open34.0%

World: 40% of research is openly available.

with international co-authors10.7%domestic only89.3%

World: 18% is written across borders.

How has Tochigi Prefectural Police's research output changed?

Output in 2022-2025 was 38% 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 Tochigi Prefectural Police as a percentage of every work published that year, 0.000059% in 2024.

still counting0.00050%0.0010%Tochigi Prefectural Police0.00012% in 202519801990200020102020

Fractional works of Tochigi Prefectural Police over all fractional works that year. How the balance of science has shifted.

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Tochigi Prefectural Police on Science Explorer

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