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Researcher · AEgis Technologies (United States) · United States

John M. Callahan

John M. Callahan publishes mostly in Political Science and International Relations, Electronic, Optical and Magnetic Materials and Literature and Literary Theory, on topics such as Gold and Silver Nanoparticles Synthesis and Applications, Plasmonic and Surface Plasmon Research and Theatre and Performance Studies.

OpenAlex
World rank
#3,351,627
of 7,710,434 ranked researchers
Rank in United States
#944,869
of 1,627,098
Works
25
Citations
290
Citations per work
11.6
h-index
5
i10-index 5Top 47% in Political Science and International Relations
John M. Callahan

What does John M. Callahan research?

John M. Callahan's work is mostly in Social Sciences (20%), Arts and Humanities (11%), Materials Science (7%).

Everything else: 13 works · 51.7% of their workSocial Sciences: 9 works · 35.3% of their workSocial Sciences: 5 works · 20.4% of their workPolitical Science and International Relations: 5 works · 20.4% of their workArts and Humanities: 3 works · 11.2% of their workLiterature and Literary Theory: 1 works · 5.6% of their workVisual Arts and Performing Arts: 1 works · 5.6% of their workEconomics, Econometrics and Finance: 1 works · 3.7% of their workEconomics and Econometrics: 1 works · 3.7% of their workPhysical Sciences: 3 works · 13.0% of their workMaterials Science: 2 works · 7.4% of their workElectronic, Optical and Magnetic Materials: 2 works · 7.4% of their workEngineering: 1 works · 5.6% of their workBiomedical Engineering: 1 works · 5.6% of their workTHEIR WORKJohn M. Callahan25works
Physical Sciences13%Social Sciences35%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
  1. Everything else1351.7%
    1. Social Sciences520.4%
    2. Arts and Humanities311.2%
    3. Economics, Econometrics and Finance13.7%
    1. Materials Science27.4%
    2. Engineering15.6%
  1. 1Political Science and International Relations20% of their works
  2. 2Electronic, Optical and Magnetic Materials7% of their works
  3. 3Literature and Literary Theory6% of their works
  4. 4Biomedical Engineering6% of their works
  5. 5Visual Arts and Performing Arts6% of their works
  6. 6Economics and Econometrics4% of their works

Research topics

Which keywords describe John M. Callahan's research?

The keywords of their largest research topics: Globalization, Nanofabrication, Gold Nanoparticles, Plasmonic Nanoparticles, International Institutions, Nanophotonics, Performance Art and Plasmonics.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most. The words come from the keyword list OpenAlex gives each topic, not from the text of the papers, so a word can appear that none of the papers uses.

All 18 words, with their numbers
  1. Globalization62 topics
  2. Nanofabrication62 topics
  3. Gold Nanoparticles41 topic
  4. Plasmonic Nanoparticles41 topic
  5. International Institutions31 topic
  6. Nanophotonics31 topic
  7. Performance Art31 topic
  8. Plasmonics31 topic
  9. Power31 topic
  10. Theatre31 topic
  11. American Musical Theatre21 topic
  12. Antireflective Coatings21 topic
  13. Crisis Communication21 topic
  14. Fairy Tales21 topic
  15. Folklore21 topic
  16. Melodrama21 topic
  17. Nanostructures21 topic
  18. Social Media21 topic

Where does John M. Callahan work?

John M. Callahan's main affiliation in the publication record is AEgis Technologies (United States), United States.

How many publications and citations does John M. Callahan have?

OpenAlex counts 25 works and 290 citations for John M. Callahan, an h-index of 5, ranking #3,351,627 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised citation excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

Discussion

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