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Company · Knoxville · United States

PTAC (United States)

ptacinc.comROR OpenAlex
Research works
5
▲ 76% vs 2018-21
Citations
53
11.0 per fractional work
Top-10% rate
45.9%
all institutions 10.0%
Open access
19%
world 40%
International
20%
world 18%
PTAC (United States)

Not ranked overall: PTAC (United States) is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

Which fields of science does PTAC (United States) work in?

In all years, 47% of research at PTAC (United States) is in Physical Sciences, 33% in Social Sciences. Its largest fields are Medicine (18%), Decision Sciences (18%), Materials Science (16%).

Physical Sciences: 2 fractional works · 46.9% of its workMaterials Science: 1 fractional works · 16.3% of its workComputer Science: 0 fractional works · 10.2% of its workEngineering: 0 fractional works · 10.2% of its workChemistry: 0 fractional works · 4.1% of its workEnvironmental Science: 0 fractional works · 4.1% of its workEarth and Planetary Sciences: 0 fractional works · 2.0% of its workSocial Sciences: 2 fractional works · 32.7% of its workDecision Sciences: 1 fractional works · 18.4% of its workPsychology: 0 fractional works · 8.2% of its workArts and Humanities: 0 fractional works · 6.1% of its workHealth Sciences: 1 fractional works · 18.4% of its workMedicine: 1 fractional works · 18.4% of its workLife Sciences: 0 fractional works · 2.0% of its workNeuroscience: 0 fractional works · 2.0% of its workALL ITS WORKPTAC (UnitedStates)5fractional works, all years
Life Sciences2%Physical Sciences47%Health Sciences18%Social Sciences33%

Each ring splits the one inside it: the four domains of science, their fields. Size is fractional works in all years. 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 11 fields, with their numbers
    1. Materials Science116.3%
    2. Computer Science010.2%
    3. Engineering010.2%
    4. Chemistry04.1%
    5. Environmental Science04.1%
    6. Earth and Planetary Sciences02.0%
    1. Decision Sciences118.4%
    2. Psychology08.2%
    3. Arts and Humanities06.1%
    1. Medicine118.4%
    1. Neuroscience02.0%
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.

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

The most cited paper from PTAC (United States) is "International Retrospective Study of the Pipeline Embolization Device: A Multicenter Aneurysm Treatment Study" (David F. Kallmes et al., 2014), with 575 citations. Next come "Obtaining guilty knowledge in human intelligence interrogations: Comparing accusatorial and information-gathering approaches with a novel experimental paradigm." (71) and "Management and Outcomes for Neovascular Age-Related Macular Degeneration" (47).

Most cited papers
#PaperReleasedCitations
1 International Retrospective Study of the Pipeline Embolization Device: A Multicenter Aneurysm Treatment Study David F. Kallmes et al. · American Journal of Neuroradiology Open access 29 Oct 2014 575
2 Obtaining guilty knowledge in human intelligence interrogations: Comparing accusatorial and information-gathering approaches with a novel experimental paradigm. Jacqueline Renee Evans, Christian A. Meissner, Amy Bethany Ross et al. · Journal of Applied Research in Memory and Cognition Jun 2013 71
3 Management and Outcomes for Neovascular Age-Related Macular Degeneration Szilárd Kiss, Joanna H. Campbell, Arghavan Almony et al. · Ophthalmology Open access 27 Feb 2020 47
4 Detection of deception in structured interviews using sensors and algorithms Meredith G. Cunha, Alissa C. Clarke, Jennifer Z. Martin et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE Conference paper 23 Apr 2010 3
5 The fusion liquid breeder compatibility gap: Thoughts on issues to address for a fusion power plant Bruce A. Pint · Current Opinion in Solid State and Materials Science Review 13 Jan 2026 2
All 9 most cited papers, with filters and sorting

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

By volume in 2022-now: Construction Project Management and Performance, Nuclear reactor physics and engineering, Fusion materials and technologies and Nuclear Materials and Properties.

Construction Project Man…0Construction Project Management and Performance: 0 fractional worksNuclear reactor physics …0Nuclear reactor physics and engineering: 0 fractional worksFusion materials and tec…0Fusion materials and technologies: 0 fractional worksNuclear Materials and Pr…0Nuclear Materials and Properties: 0 fractional worksSoftware Engineering Techniques and Practices: 0 fractional worksResource-Constrained Project Scheduling: 0 fractional worksLung Cancer Research Studies: 0 fractional worksLung Cancer Treatments and Mutations: 0 fractional worksGraphite, nuclear technology, radiation studies: 0 fractional worksNuclear and radioactivity studies: 0 fractional works
Management Science and Operations ResearchAerospace EngineeringMaterials ChemistryInformation Systems3 others

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

  1. 1 Construction Project Management and Performance Management Science and Operations Research 0 works
  2. 2 Nuclear reactor physics and engineering Aerospace Engineering 0 works
  3. 3 Fusion materials and technologies Materials Chemistry 0 works
  4. 4 Nuclear Materials and Properties Materials Chemistry 0 works
  5. 5 Software Engineering Techniques and Practices Information Systems 0 works
  6. 6 Resource-Constrained Project Scheduling Management Science and Operations Research 0 works
  7. 7 Lung Cancer Research Studies Oncology 0 works
  8. 8 Lung Cancer Treatments and Mutations Pulmonary and Respiratory Medicine 0 works
  9. 9 Graphite, nuclear technology, radiation studies Materials Chemistry 0 works
  10. 10 Nuclear and radioactivity studies Safety, Risk, Reliability and Quality 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 available18.8%not open81.2%

World: 40% of research is openly available.

with international co-authors20.0%domestic only80.0%

World: 18% is written across borders.

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

Output in 2022-2025 was 76% 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 PTAC (United States) as a percentage of every work published that year, 0.0000031% in 2023.

still counting0.000050%0.00010%0.00015%PTAC (United States)0.000016% in 20251990200020102020

Fractional works of PTAC (United States) over all fractional works that year. How the balance of science has shifted.

Other research institutions in Knoxville

All research institutions in Knoxville

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

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