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University · Fullerton · United States

Marshall B. Ketchum University

In research, Marshall B. Ketchum University stands highest in Health Sciences (#9,810 of 16,688 worldwide) and Medicine (#10,042 of 14,558 worldwide), over all time.

ketchum.eduROR OpenAlex
World rank, 2022-now
#20,604
of 22,385 · #20,558 all time
Rank in United States
#3,052
of 3,332
Research works
668
▼ 17% vs 2018-21
Citations
9.5k
14.2 per fractional work
Top-10% rate
13.3%
all institutions 10.0%
vs its own fields
0.97×
1.00× is exactly expected
Open access
16%
world 40%
International
10%
world 18%
Marshall B. Ketchum University

What is Marshall B. Ketchum University 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 #9,810 of 16,688 7.0%412
MedicineField #10,042 of 14,558 6.8%391

Each strip is that field's whole ranked pool, with the notch where Marshall B. Ketchum 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 Marshall B. Ketchum University work in?

In 2022-now, 66% of research at Marshall B. Ketchum University is in Health Sciences, 15% in Life Sciences. Its largest fields are Medicine (60%), Neuroscience (7%), Biochemistry, Genetics and Molecular Biology (6%). It does 2.6× the world's share of Health Sciences.

Health Sciences: 47 fractional works · 66.3% of its workMedicine: 43 fractional works · 60.2% of its workEpidemiology: 8 fractional works · 10.9% of its workOphthalmology: 8 fractional works · 10.9% of its workPublic Health, Environmental and Occupational Health: 7 fractional works · 10.2% of its workRadiology, Nuclear Medicine and Imaging: 4 fractional works · 6.0% of its workSurgery: 2 fractional works · 3.1% of its workPediatrics, Perinatology and Child Health: 2 fractional works · 2.8% of its workPharmacology: 2 fractional works · 2.3% of its workPhysiology: 2 fractional works · 2.3% of its workPathology and Forensic Medicine: 1 fractional works · 1.5% of its workPulmonary and Respiratory Medicine: 1 fractional works · 1.4% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 1.1% of its workGeriatrics and Gerontology: 1 fractional works · 0.9% of its workDermatology: 1 fractional works · 0.8% of its workInfectious Diseases: 0 fractional works · 0.7% of its workPsychiatry and Mental health: 0 fractional works · 0.6% of its workRheumatology: 0 fractional works · 0.6% of its workRehabilitation: 0 fractional works · 0.5% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 0.5% of its workComplementary and alternative medicine: 0 fractional works · 0.5% of its workFamily Practice: 0 fractional works · 0.5% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.5% of its workHematology: 0 fractional works · 0.4% of its workNeurology: 0 fractional works · 0.4% of its workEmergency Medicine: 0 fractional works · 0.3% of its workImmunology and Allergy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workHealth Professions: 3 fractional works · 4.3% of its workGeneral Health Professions: 2 fractional works · 2.8% of its workOccupational Therapy: 1 fractional works · 0.7% of its workPharmacy: 0 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNursing: 1 fractional works · 1.5% of its workNutrition and Dietetics: 1 fractional works · 1.0% of its workResearch and Theory: 0 fractional works · 0.6% of its workDentistry: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.1% of its workLife Sciences: 11 fractional works · 14.8% of its workNeuroscience: 5 fractional works · 7.3% of its workCognitive Neuroscience: 4 fractional works · 6.0% of its workNeurology: 1 fractional works · 1.4% of its workBiochemistry, Genetics and Molecular Biology: 4 fractional works · 6.1% of its workMolecular Biology: 3 fractional works · 3.6% of its workGenetics: 1 fractional works · 0.8% of its workMolecular Medicine: 0 fractional works · 0.7% of its workCell Biology: 0 fractional works · 0.4% of its workCancer Research: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workImmunology and Microbiology: 1 fractional works · 0.9% of its workApplied Microbiology and Biotechnology: 0 fractional works · 0.6% of its workParasitology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.4% of its workToxicology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workAgricultural and Biological Sciences: 0 fractional works · 0.1% of its workSocial Sciences: 7 fractional works · 10.2% of its workSocial Sciences: 3 fractional works · 4.4% of its workSociology and Political Science: 1 fractional works · 1.9% of its workEducation: 1 fractional works · 1.2% of its workHealth: 0 fractional works · 0.7% of its workGender Studies: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workPsychology: 2 fractional works · 2.1% of its workSocial Psychology: 1 fractional works · 1.0% of its workApplied Psychology: 0 fractional works · 0.6% of its workDevelopmental and Educational Psychology: 0 fractional works · 0.3% of its workExperimental and Cognitive Psychology: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 1 fractional works · 1.8% of its workStrategy and Management: 0 fractional works · 0.4% of its workAccounting: 0 fractional works · 0.4% of its workManagement of Technology and Innovation: 0 fractional works · 0.4% of its workMarketing: 0 fractional works · 0.3% of its workManagement Information Systems: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 1 fractional works · 1.2% of its workEconomics and Econometrics: 0 fractional works · 0.6% of its workFinance: 0 fractional works · 0.6% of its workArts and Humanities: 0 fractional works · 0.6% of its workLiterature and Literary Theory: 0 fractional works · 0.3% of its workVisual Arts and Performing Arts: 0 fractional works · 0.3% of its workDecision Sciences: 0 fractional works · 0.2% of its workPhysical Sciences: 6 fractional works · 8.7% of its workComputer Science: 2 fractional works · 2.4% of its workInformation Systems: 1 fractional works · 1.5% of its workArtificial Intelligence: 0 fractional works · 0.5% of its workHuman-Computer Interaction: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 2 fractional works · 2.2% of its workBiomaterials: 1 fractional works · 1.4% of its workMaterials Chemistry: 0 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEngineering: 1 fractional works · 1.7% of its workBiomedical Engineering: 1 fractional works · 1.3% of its workElectrical and Electronic Engineering: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemistry: 1 fractional works · 1.4% of its workOrganic Chemistry: 1 fractional works · 1.1% of its workPhysical and Theoretical Chemistry: 0 fractional works · 0.2% of its workEnvironmental Science: 0 fractional works · 0.5% of its workPhysics and Astronomy: 0 fractional works · 0.3% of its workEnergy: 0 fractional works · 0.2% of its workRenewable Energy, Sustainability and the Environment: 0 fractional works · 0.2% of its workChemical Engineering: 0 fractional works · 0.1% of its workALL ITS WORKMarshall B.Ketchum…71fractional works, 2022-now
Life Sciences15%Physical Sciences9%Health Sciences66%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 24 fields, with their numbers
    1. Medicine4360.2%
    2. Health Professions34.3%
    3. Nursing11.5%
    4. Dentistry00.1%
    5. Veterinary00.1%
    1. Neuroscience57.3%
    2. Biochemistry, Genetics and Molecular Biology46.1%
    3. Immunology and Microbiology10.9%
    4. Pharmacology, Toxicology and Pharmaceutics00.4%
    5. Agricultural and Biological Sciences00.1%
    1. Social Sciences34.4%
    2. Psychology22.1%
    3. Business, Management and Accounting11.8%
    4. Economics, Econometrics and Finance11.2%
    5. Arts and Humanities00.6%
    6. Decision Sciences00.2%
    1. Computer Science22.4%
    2. Materials Science22.2%
    3. Engineering11.7%
    4. Chemistry11.4%
    5. Environmental Science00.5%
    6. Physics and Astronomy00.3%
    7. Energy00.2%
    8. Chemical Engineering00.1%
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: 0.02× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.14× its world share, 4 worksBiochemistry, Geneti…Immunology and Microbiology: 0.90× its world share, 1 worksImmunology and Micro…Neuroscience: 4.52× its world share, 5 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.99× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.33× its world share, 0 worksChemical EngineeringChemistry: 0.86× its world share, 1 worksChemistryComputer Science: 0.31× its world share, 2 worksComputer ScienceEnergy: 0.25× its world share, 0 worksEnergyEngineering: 0.11× its world share, 1 worksEngineeringEnvironmental Science: 0.09× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.62× its world share, 2 worksMaterials SciencePhysics and Astronomy: 0.14× its world share, 0 worksPhysics and AstronomyDentistry: 0.24× its world share, 0 worksDentistryHealth Professions: 1.62× its world share, 3 worksHealth ProfessionsMedicine: 3.13× its world share, 43 worksMedicineNursing: 3.13× its world share, 1 worksNursingVeterinary: 0.86× its world share, 0 worksVeterinaryArts and Humanities: 0.20× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.54× its world share, 1 worksBusiness, Management…Decision Sciences: 0.16× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.57× its world share, 1 worksEconomics, Econometr…Psychology: 0.70× its world share, 2 worksPsychologySocial Sciences: 0.34× 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, 4.5×. Every wedge is a field page.

All 24 fields, with their numbers
  1. Neuroscience4.52×5 works
  2. Medicine3.13×43 works
  3. Nursing3.13×1 works
  4. Health Professions1.62×3 works
  5. Biochemistry, Genetics and Molecular Biology1.14×4 works
  6. Pharmacology, Toxicology and Pharmaceutics0.99×0 works
  7. Immunology and Microbiology0.90×1 works
  8. Chemistry0.86×1 works
  9. Veterinary0.86×0 works
  10. Psychology0.70×2 works
  11. Materials Science0.62×2 works
  12. Economics, Econometrics and Finance0.57×1 works
  13. Business, Management and Accounting0.54×1 works
  14. Social Sciences0.34×3 works
  15. Chemical Engineering0.33×0 works
  16. Computer Science0.31×2 works
  17. Energy0.25×0 works
  18. Dentistry0.24×0 works
  19. Arts and Humanities0.20×0 works
  20. Decision Sciences0.16×0 works
  21. Physics and Astronomy0.14×0 works
  22. Engineering0.11×1 works
  23. Environmental Science0.09×0 works
  24. Agricultural and Biological Sciences0.02×0 works

Who are the top researchers at Marshall B. Ketchum University?

Ranked on the quality score, Susan A. Cotter, Allison I. Summers and Stephen R. Glaser lead among researchers whose main affiliation is Marshall B. Ketchum University.

  1. 1 Susan A. Cotter United States · #135,750 worldwide 13k citations · 244 works
  2. 2 Allison I. Summers United States · #732,316 worldwide 749 citations · 29 works
  3. 3 Stephen R. Glaser United States · #911,407 worldwide 633 citations · 23 works
  4. 4 Eric J. Borsting United States · #1,357,473 worldwide 3.1k citations · 90 works
  5. 5 MICHAEL W. ROUSE United States · #1,390,305 worldwide 3k citations · 97 works
  6. 6 Ingryd J. Lorenzana United States · #1,436,182 worldwide 415 citations · 19 works
  7. 7 Rajesh Vadlapatla United States · #1,485,418 worldwide 152 citations · 38 works
  8. 8 Timothy B. Edrington United States · #1,515,343 worldwide 3k citations · 79 works
  9. 9 Ajoy Koomer United States · #1,752,446 worldwide 51 citations · 16 works
  10. 10 Carmen N. Barnhardt United States · #2,019,085 worldwide 559 citations · 26 works
All ranked researchers at Marshall B. Ketchum University

What are the most cited papers from Marshall B. Ketchum University?

The most cited paper from Marshall B. Ketchum University is "The International Workshop on Meibomian Gland Dysfunction: Report of the Diagnosis Subcommittee" (Alan Tomlinson, Anthony J. Bron, Donald R. Korb et al., 2011), with 864 citations. Next come "Refractive Error, Axial Length, and Relative Peripheral Refractive Error before and after the Onset of Myopia" (658) and "Coordinating for Flexibility in e-Business Supply Chains" (460).

Most cited papers
#PaperReleasedCitations
1 The International Workshop on Meibomian Gland Dysfunction: Report of the Diagnosis Subcommittee Alan Tomlinson, Anthony J. Bron, Donald R. Korb et al. · Investigative Ophthalmology & Visual Science Open access 30 Mar 2011 864
2 Refractive Error, Axial Length, and Relative Peripheral Refractive Error before and after the Onset of Myopia Donald O. Mutti, John R. Hayes, Gladys Lynn Mitchell et al. · Investigative Ophthalmology & Visual Science Open access 25 May 2007 658
3 Coordinating for Flexibility in e-Business Supply Chains Sanjay Gosain, Arvind Malhotra, Omar A. El Sawy · Journal of Management Information Systems Nov 2004 460
4 The Relationship between Habitual Patient-Reported Symptoms and Clinical Signs among Patients with Dry Eye of Varying Severity Carolyn G. Begley, Robin L. Chalmers, Linda N. Abetz et al. · Investigative Ophthalmology & Visual Science 24 Oct 2003 426
5 Prediction of Juvenile-Onset Myopia Karla Zadnik, Loraine T. Sinnott, Susan A. Cotter et al. · JAMA Ophthalmology Open access 2 Apr 2015 380
All 58 most cited papers, with filters and sorting

Which keywords describe research at Marshall B. Ketchum University?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Myopia, Visual Impairment, Global Prevalence, Refractive Error, Dry Eye Disease, Ocular Surface and Intraocular Pressure.

▲ 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. Epidemiology14▲ 4.8×16 topics
  2. Myopia7▲ 154×2 topics
  3. Visual Impairment7▲ 190×2 topics
  4. Global Prevalence7▲ 104×1 topic
  5. Refractive Error7▲ 235×1 topic
  6. Dry Eye Disease4▲ 158×1 topic
  7. Ocular Surface4▲ 158×1 topic
  8. Intraocular Pressure4▲ 57×2 topics
  9. Glaucoma3▲ 31×3 topics
  10. Inflammation3▲ 2.0×14 topics
  11. Virtual Reality3▲ 8.5×4 topics
  12. Optical Coherence Tomography3▲ 37×2 topics
  13. Neural Processing2▲ 55×1 topic
  14. Visual Perception2▲ 139×1 topic
  15. Faculty Development2▲ 43×2 topics
  16. Telemedicine2▲ 23×3 topics
  17. Assessment Methods2▲ 28×2 topics
  18. Cancer Therapy2▲ 5.1×7 topics
  19. Optic Nerve2▲ 31×2 topics
  20. Competency-Based Education2▲ 32×1 topic
  21. Professional Identity Formation2▲ 46×1 topic
  22. Risk Factors2▲ 2.5×3 topics
  23. Clinical Skills2▲ 103×2 topics
  24. Corneal Biomechanics2▲ 71×1 topic
  25. Curriculum2▲ 26×2 topics
  26. Keratoconus2▲ 71×1 topic
  27. Neurodegeneration2▲ 8.9×3 topics
  28. Primary Care2▲ 7.3×7 topics
  29. Simulation2▲ 10×2 topics
  30. Medical Students2▲ 206×1 topic
  31. Ophthalmoscopy2▲ 206×1 topic
  32. Tissue Engineering2▲ 4.2×6 topics
  33. Ocular Hypertension2▲ 47×1 topic
  34. Retinal Ganglion Cells2▲ 22×1 topic
  35. Macular Degeneration2▲ 18×3 topics
  36. Functional Recovery1▲ 12×3 topics
  37. Wound Healing1▲ 6.6×2 topics
  38. Femtosecond Laser1▲ 33×1 topic
  39. Intraocular Lens Implantation1▲ 57×1 topic
  40. Stem Cell Therapy1▲ 17×2 topics

Which research topics does Marshall B. Ketchum University publish most on?

By volume in 2022-now: Ophthalmology and Visual Impairment Studies, Ocular Surface and Contact Lens, Visual perception and processing mechanisms and Innovations in Medical Education.

Ophthalmology and Visual…7Ophthalmology and Visual Impairment Studies: 7 fractional worksOcular Surface and Conta…4Ocular Surface and Contact Lens: 4 fractional worksVisual perception and pr…2Visual perception and processing mechanisms: 2 fractional worksInnovations in Medical Education: 2 fractional worksCorneal surgery and disorders: 2 fractional worksOphthalmology and Visual…2Ophthalmology and Visual Health Research: 2 fractional worksGlaucoma and retinal disorders: 2 fractional worksIntraocular Surgery and Lenses: 1 fractional worksCorneal Surgery and Treatments: 1 fractional worksEducation and Learning Interventions: 1 fractional works
EpidemiologyPublic Health, Environmental and Occupational HealthCognitive NeuroscienceRadiology, Nuclear Medicine and Imaging2 others

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

  1. 1 Ophthalmology and Visual Impairment Studies Epidemiology 7 works
  2. 2 Ocular Surface and Contact Lens Public Health, Environmental and Occupational Health 4 works
  3. 3 Visual perception and processing mechanisms Cognitive Neuroscience 2 works
  4. 4 Innovations in Medical Education Public Health, Environmental and Occupational Health 2 works
  5. 5 Corneal surgery and disorders Radiology, Nuclear Medicine and Imaging 2 works
  6. 6 Ophthalmology and Visual Health Research Ophthalmology 2 works
  7. 7 Glaucoma and retinal disorders Ophthalmology 2 works
  8. 8 Intraocular Surgery and Lenses Ophthalmology 1 works
  9. 9 Corneal Surgery and Treatments Radiology, Nuclear Medicine and Imaging 1 works
  10. 10 Education and Learning Interventions Information Systems 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 available16.3%not open83.7%

World: 40% of research is openly available.

with international co-authors10.4%domestic only89.6%

World: 18% is written across borders.

How has Marshall B. Ketchum University's research output changed?

Output in 2022-2025 was 17% 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 Marshall B. Ketchum University as a percentage of every work published that year, 0.00033% in 2024.

still counting0.0020%0.0040%Marshall B. Ketchum University0.00036% in 202519801990200020102020

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

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Marshall B. Ketchum University on Science Explorer

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