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Company · Stoneham · United States

Circadian (United States)

In research, Circadian (United States) stands highest in Health Sciences (#1,941 of 16,688 worldwide), Medicine (#2,239 of 14,558 worldwide) and Life Sciences (#1,841 of 11,023 worldwide), over all time. Relative to its size it is most specialised in Experimental and Cognitive Psychology, Physiology and Neuroscience (Experimental and Cognitive Psychology is 41.0× its share of world research).

circadian.comROR OpenAlex
World rank, 2022-now
#8,706
of 22,385 · #3,906 all time
Rank in United States
#1,170
of 3,332
Research works
420
▲ 2% vs 2018-21
Citations
20k
48.5 per fractional work
Top-10% rate
23.0%
all institutions 10.0%
vs its own fields
1.19×
1.00× is exactly expected
Open access
64%
world 40%
International
37%
world 18%
Circadian (United States)

What is Circadian (United States) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Health SciencesDomain #1,941 of 16,688 26.9%138
MedicineField #2,239 of 14,558 27.7%122
Life SciencesDomain #1,841 of 11,023 23.0%141

Each strip is that field's whole ranked pool, with the notch where Circadian (United States) 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 Circadian (United States) work in?

In 2022-now, 42% of research at Circadian (United States) is in Health Sciences, 27% in Life Sciences. Its largest fields are Medicine (38%), Psychology (22%), Neuroscience (21%). It does 1.9× the world's share of Life Sciences.

Health Sciences: 57 fractional works · 41.9% of its workMedicine: 51 fractional works · 37.6% of its workPhysiology: 23 fractional works · 16.8% of its workPulmonary and Respiratory Medicine: 6 fractional works · 4.8% of its workCardiology and Cardiovascular Medicine: 3 fractional works · 2.6% of its workEpidemiology: 3 fractional works · 2.0% of its workPublic Health, Environmental and Occupational Health: 3 fractional works · 1.9% of its workPsychiatry and Mental health: 2 fractional works · 1.4% of its workNeurology: 1 fractional works · 0.8% of its workEmergency Medicine: 1 fractional works · 0.7% of its workSurgery: 1 fractional works · 0.7% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.6% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.5% of its workComplementary and alternative medicine: 1 fractional works · 0.5% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.4% of its workOncology: 1 fractional works · 0.4% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.4% of its workObstetrics and Gynecology: 0 fractional works · 0.3% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.3% of its workOphthalmology: 0 fractional works · 0.2% of its workGastroenterology: 0 fractional works · 0.2% of its workPharmacology: 0 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 1.7% of its workHealth Professions: 6 fractional works · 4.1% of its workGeneral Health Professions: 3 fractional works · 1.9% of its workSpeech and Hearing: 1 fractional works · 0.7% of its workEmergency Medical Services: 1 fractional works · 0.4% of its workOccupational Therapy: 1 fractional works · 0.4% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 0 fractional works · 0.3% of its workRadiological and Ultrasound Technology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNursing: 0 fractional works · 0.2% of its workNutrition and Dietetics: 0 fractional works · 0.2% of its workLife Sciences: 36 fractional works · 26.6% of its workNeuroscience: 28 fractional works · 21.1% of its workEndocrine and Autonomic Systems: 17 fractional works · 12.7% of its workCognitive Neuroscience: 10 fractional works · 7.0% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.5% of its workNeurology: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workBiochemistry, Genetics and Molecular Biology: 7 fractional works · 5.2% of its workGenetics: 3 fractional works · 2.4% of its workMolecular Biology: 3 fractional works · 2.0% of its workAging: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workAgricultural and Biological Sciences: 0 fractional works · 0.2% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workSocial Sciences: 33 fractional works · 24.7% of its workPsychology: 30 fractional works · 22.4% of its workExperimental and Cognitive Psychology: 26 fractional works · 19.5% of its workClinical Psychology: 2 fractional works · 1.2% of its workSocial Psychology: 1 fractional works · 0.9% of its workApplied Psychology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.3% of its workSocial Sciences: 3 fractional works · 2.0% of its workSociology and Political Science: 1 fractional works · 0.7% of its workEducation: 1 fractional works · 0.6% of its workHealth: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.1% of its workBusiness, Management and Accounting: 0 fractional works · 0.1% of its workDecision Sciences: 0 fractional works · 0.0% of its workPhysical Sciences: 9 fractional works · 6.7% of its workEnvironmental Science: 4 fractional works · 3.3% of its workHealth, Toxicology and Mutagenesis: 3 fractional works · 2.0% of its workGlobal and Planetary Change: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.3% of its workEngineering: 2 fractional works · 1.5% of its workBiomedical Engineering: 1 fractional works · 0.9% of its workMechanics of Materials: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workComputer Science: 1 fractional works · 0.8% of its workMaterials Science: 1 fractional works · 0.4% of its workMaterials Chemistry: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workPhysics and Astronomy: 0 fractional works · 0.3% of its workAtomic and Molecular Physics, and Optics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workMathematics: 0 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.1% of its workChemical Engineering: 0 fractional works · 0.1% of its workALL ITS WORKCircadian (UnitedStates)135fractional works, 2022-now
Life Sciences27%Physical Sciences7%Health Sciences42%Social Sciences25%

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. Medicine5137.6%
    2. Health Professions64.1%
    3. Nursing00.2%
    4. Veterinary00.0%
    1. Neuroscience2821.1%
    2. Biochemistry, Genetics and Molecular Biology75.2%
    3. Agricultural and Biological Sciences00.2%
    4. Immunology and Microbiology00.1%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
    1. Psychology3022.4%
    2. Social Sciences32.0%
    3. Economics, Econometrics and Finance00.1%
    4. Arts and Humanities00.1%
    5. Business, Management and Accounting00.1%
    6. Decision Sciences00.0%
    1. Environmental Science43.3%
    2. Engineering21.5%
    3. Computer Science10.8%
    4. Materials Science10.4%
    5. Physics and Astronomy00.3%
    6. Mathematics00.2%
    7. Chemistry00.1%
    8. Chemical Engineering00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Circadian (United States) specialise in?

Where its research is concentrated relative to its size: Experimental and Cognitive Psychology takes 41.0× the share of its output that it takes of world research.

  1. Experimental and Cognitive PsychologySubfield · 26.3 works41×
  2. PhysiologySubfield · 22.7 works19×
  3. NeuroscienceField · 28.4 works13×
  4. PsychologyField · 30.2 works7.3×
← 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: 0.05× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.97× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 0.06× its world share, 0 worksImmunology and Micro…Neuroscience: 12.98× its world share, 28 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.14× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.24× its world share, 0 worksChemical EngineeringChemistry: 0.09× its world share, 0 worksChemistryComputer Science: 0.11× its world share, 1 worksComputer ScienceEngineering: 0.10× its world share, 2 worksEngineeringEnvironmental Science: 0.67× its world share, 4 worksEnvironmental ScienceMaterials Science: 0.12× its world share, 1 worksMaterials ScienceMathematics: 0.17× its world share, 0 worksMathematicsPhysics and Astronomy: 0.12× its world share, 0 worksPhysics and AstronomyHealth Professions: 1.56× its world share, 6 worksHealth ProfessionsMedicine: 1.96× its world share, 51 worksMedicineNursing: 0.45× its world share, 0 worksNursingVeterinary: 0.08× its world share, 0 worksVeterinaryArts and Humanities: 0.05× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.02× its world share, 0 worksBusiness, Management…Decision Sciences: 0.04× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.06× its world share, 0 worksEconomics, Econometr…Psychology: 7.33× its world share, 30 worksPsychologySocial Sciences: 0.16× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Neuroscience, 13.0×. Every wedge is a field page.

All 23 fields, with their numbers
  1. Neuroscience12.98×28 works
  2. Psychology7.33×30 works
  3. Medicine1.96×51 works
  4. Health Professions1.56×6 works
  5. Biochemistry, Genetics and Molecular Biology0.97×7 works
  6. Environmental Science0.67×4 works
  7. Nursing0.45×0 works
  8. Chemical Engineering0.24×0 works
  9. Mathematics0.17×0 works
  10. Social Sciences0.16×3 works
  11. Pharmacology, Toxicology and Pharmaceutics0.14×0 works
  12. Materials Science0.12×1 works
  13. Physics and Astronomy0.12×0 works
  14. Computer Science0.11×1 works
  15. Engineering0.10×2 works
  16. Chemistry0.09×0 works
  17. Veterinary0.08×0 works
  18. Immunology and Microbiology0.06×0 works
  19. Economics, Econometrics and Finance0.06×0 works
  20. Agricultural and Biological Sciences0.05×0 works
  21. Arts and Humanities0.05×0 works
  22. Decision Sciences0.04×0 works
  23. Business, Management and Accounting0.02×0 works

Who are the top researchers at Circadian (United States)?

Ranked on the quality score, Ziad Boulos, Anneke Heitmann and Acacia Aguirre lead among researchers whose main affiliation is Circadian (United States).

  1. 1 Ziad Boulos United States · #1,187,415 worldwide 2.7k citations · 44 works
  2. 2 Anneke Heitmann United States · #2,388,326 worldwide 472 citations · 17 works
  3. 3 Acacia Aguirre United States · #2,614,272 worldwide 420 citations · 15 works
  4. 4 Claudio Stampi United States · #3,256,445 worldwide 374 citations · 19 works
All ranked researchers at Circadian (United States)

What are the most cited papers from Circadian (United States)?

The most cited paper from Circadian (United States) is "Sequencing of 53,831 diverse genomes from the NHLBI TOPMed Program" (Daniel Taliun et al., 2021), with 2,381 citations. Next come "Disruption of the clock components CLOCK and BMAL1 leads to hypoinsulinaemia and diabetes" (1,537) and "Diagnosis and Management of Obstructive Sleep Apnea" (1,484).

Most cited papers
#PaperReleasedCitations
1 Sequencing of 53,831 diverse genomes from the NHLBI TOPMed Program Daniel Taliun et al. · Nature Open access427 authors 10 Feb 2021 2,381
2 Disruption of the clock components CLOCK and BMAL1 leads to hypoinsulinaemia and diabetes Biliana Marcheva, Kathryn Moynihan Ramsey, Ethan D. Buhr et al. · Nature Open access 18 Jun 2010 1,537
3 Diagnosis and Management of Obstructive Sleep Apnea Daniel J. Gottlieb, Naresh M. Punjabi · JAMA 14 Apr 2020 1,484
4 Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness Anne‐Marie Chang, Daniel Aeschbach, Jeanne F. Duffy et al. · Proceedings of the National Academy of Sciences Open access 22 Dec 2014 1,434
5 National Sleep Foundation's sleep quality recommendations: first report Maurice Moyses Ohayon, Emerson M. Wickwire, Max Hirshkowitz et al. · Sleep Health Open access 23 Dec 2016 1,328
All 59 most cited papers, with filters and sorting

Which keywords describe research at Circadian (United States)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Circadian Rhythms, Cardiovascular Disease, Cognitive Behavioral Therapy, Meta-Analysis, Health Consequences, Insomnia and Sleep Duration.

▲ 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. Epidemiology41▲ 7.6×30 topics
  2. Circadian Rhythms27▲ 184×2 topics
  3. Cardiovascular Disease22▲ 14×21 topics
  4. Cognitive Behavioral Therapy19▲ 98×2 topics
  5. Meta-Analysis19▲ 24×4 topics
  6. Health Consequences19▲ 49×2 topics
  7. Insomnia19▲ 188×1 topic
  8. Sleep Duration19▲ 202×1 topic
  9. Mortality18▲ 24×8 topics
  10. Insulin Resistance17▲ 28×6 topics
  11. Hypertension17▲ 43×7 topics
  12. Obstructive Sleep Apnea16▲ 259×1 topic
  13. Sleep-Disordered Breathing16▲ 259×1 topic
  14. Oxidative Stress13▲ 5.9×20 topics
  15. Health Effects12▲ 15×7 topics
  16. Gene Expression11▲ 13×6 topics
  17. Metabolism10▲ 14×5 topics
  18. Circadian Clock10▲ 209×1 topic
  19. Melatonin10▲ 209×1 topic
  20. Metabolic Syndrome10▲ 8.7×12 topics
  21. Memory8▲ 26×3 topics
  22. Consolidation8▲ 154×1 topic
  23. Sleep8▲ 154×1 topic
  24. Neural Circuits7▲ 55×3 topics
  25. Cognitive Performance7▲ 52×3 topics
  26. Fatigue7▲ 45×2 topics
  27. Occupational Safety7▲ 55×2 topics
  28. Shift Work7▲ 155×1 topic
  29. Sleep Deprivation7▲ 155×1 topic
  30. Thermoregulation6▲ 65×2 topics
  31. Central Chemoreception6▲ 152×1 topic
  32. Respiratory Rhythm6▲ 152×1 topic
  33. Inflammation6▲ 2.2×30 topics
  34. Public Health5▲ 2.5×16 topics
  35. Aging4▲ 5.5×11 topics
  36. Neurological Disorders3▲ 4.4×10 topics
  37. Weight Loss3▲ 15×4 topics
  38. Metabolic Health3▲ 10×2 topics
  39. Mechanical Ventilation2▲ 16×2 topics
  40. Intermittent Fasting2▲ 67×1 topic

Which research topics does Circadian (United States) publish most on?

By volume in 2022-now: Sleep and related disorders, Obstructive Sleep Apnea Research, Circadian rhythm and melatonin and Sleep and Wakefulness Research.

Sleep and related disord…19Sleep and related disorders: 19 fractional worksObstructive Sleep Apnea …16Obstructive Sleep Apnea Research: 16 fractional worksCircadian rhythm and melatonin: 10 fractional worksSleep and Wakefulness Re…8Sleep and Wakefulness Research: 8 fractional worksSleep and Work-Related F…7Sleep and Work-Related Fatigue: 7 fractional worksNeuroscience of respiration and sleep: 6 fractional worksDietary Effects on Health: 2 fractional worksHeart Rate Variability and Autonomic Control: 2 fractional worksRespiratory Support and Mechanisms: 2 fractional worksChronic Obstructive Pulmonary Disease (COPD) Research: 2 fractional works
Experimental and Cognitive PsychologyPhysiologyEndocrine and Autonomic SystemsCognitive Neuroscience2 others

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

  1. 1 Sleep and related disorders Experimental and Cognitive Psychology 19 works
  2. 2 Obstructive Sleep Apnea Research Physiology 16 works
  3. 3 Circadian rhythm and melatonin Endocrine and Autonomic Systems 10 works
  4. 4 Sleep and Wakefulness Research Cognitive Neuroscience 8 works
  5. 5 Sleep and Work-Related Fatigue Experimental and Cognitive Psychology 7 works
  6. 6 Neuroscience of respiration and sleep Endocrine and Autonomic Systems 6 works
  7. 7 Dietary Effects on Health Physiology 2 works
  8. 8 Heart Rate Variability and Autonomic Control Cardiology and Cardiovascular Medicine 2 works
  9. 9 Respiratory Support and Mechanisms Pulmonary and Respiratory Medicine 2 works
  10. 10 Chronic Obstructive Pulmonary Disease (COPD) Research Pulmonary and Respiratory Medicine 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 available64.1%not open35.9%

World: 40% of research is openly available.

with international co-authors37.0%domestic only63.0%

World: 18% is written across borders.

How has Circadian (United States)'s research output changed?

Output in 2022-2025 was 2% 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 Circadian (United States) as a percentage of every work published that year, 0.00062% in 2024.

still counting0.0010%0.0020%Circadian (United States)0.00045% in 20251990200020102020

Fractional works of Circadian (United States) 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 counting20%40%Circadian (United States)22.9% in 2025all institutions10.0% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 38.0% in 2018.

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Circadian (United States) on Science Explorer

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