Subject Rankings

National Institute of Standards and Technology Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Nov 21, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (873.864) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
John M Butler
Metrics
H-Index
i10-Index
Citation Counts
74
168
22,395
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Tara M Lovestead
Metrics
H-Index
i10-Index
Citation Counts
27
42
1,820
cannabis breathalyzer
breath reference material
exposure science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Robert Ramotowski
Metrics
H-Index
i10-Index
Citation Counts
23
35
3,542