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University, Subject, Country, Region, World
Oklahoma State University Stillwater 916 Scientists Subject Rankings
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 06, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.911) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H Index Rankings
Rankings
67
World Rank
31
Country Rank
1
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
4,507
World Rank
1,998
Country Rank
2
University
Ranking Based On Selection:
2
* Total H Index Rankings
Rankings
11,555
World Rank
5,011
Country Rank
3
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
environmental sociology | public opinion | social movements | political sociology | environmental politic
environmental sociology | public opinion | social movements | political sociology | environmental politic
H-Index Metrics
-
H-Index98
-
i10 Index175
-
Citation Counts70,523
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Premium Data
* Total H Index Rankings
Rankings
14,938
World Rank
6,444
Country Rank
4
University
Ranking Based On Selection:
4
Engineering & Technology / Electrical & Electronic Engineering
Terahertz | THz | Photonics | Metamaterials | Plasmonic
Terahertz | THz | Photonics | Metamaterials | Plasmonic
H-Index Metrics
-
H-Index91
-
i10 Index297
-
Citation Counts31,807
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* Total H Index Rankings
Rankings
25,310
World Rank
10,525
Country Rank
5
University
Ranking Based On Selection:
5
Others
Health Analytics | Decision Support Systems | Healthcare Analytics | Business Intelligence | Business Analytic
Health Analytics | Decision Support Systems | Healthcare Analytics | Business Intelligence | Business Analytic
H-Index Metrics
-
H-Index78
-
i10 Index178
-
Citation Counts35,550
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Premium Data
* Total H Index Rankings
Rankings
25,830
World Rank
10,688
Country Rank
6
University
Ranking Based On Selection:
6
Agriculture & Forestry / Soil Sciences and Plant Nutrition
sensors | nutrient management | nitrogen | plant nutrition | developing world agricultur
sensors | nutrient management | nitrogen | plant nutrition | developing world agricultur
H-Index Metrics
-
H-Index78
-
i10 Index232
-
Citation Counts23,886
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Premium Data
* Total H Index Rankings
Rankings
27,010
World Rank
11,146
Country Rank
7
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
31,281
World Rank
12,803
Country Rank
8
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
31,348
World Rank
12,825
Country Rank
9
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
33,152
World Rank
13,432
Country Rank
10
University
Ranking Based On Selection:
10
Natural Sciences / Biological Science
ecology | conservation biology | agriculture | rangelands | rangelan
ecology | conservation biology | agriculture | rangelands | rangelan
H-Index Metrics
-
H-Index72
-
i10 Index211
-
Citation Counts20,304
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Premium Data
* Total H Index Rankings
Rankings
33,937
World Rank
13,737
Country Rank
11
University
Ranking Based On Selection:
11
Medical and Health Sciences / Endocrinology and Metabolism
Reproductive endocrinology | Dairy Cattle | Ovary | Cell Cultur
Reproductive endocrinology | Dairy Cattle | Ovary | Cell Cultur
H-Index Metrics
-
H-Index72
-
i10 Index194
-
Citation Counts16,894
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Premium Data
* Total H Index Rankings
Rankings
41,853
World Rank
16,492
Country Rank
12
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
48,336
World Rank
18,761
Country Rank
13
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
49,918
World Rank
19,297
Country Rank
14
University
Ranking Based On Selection:
14
Agriculture & Forestry / Soil Sciences and Plant Nutrition
nutrient management | soil | water | plant and animal waste testing and interpretation
nutrient management | soil | water | plant and animal waste testing and interpretation
H-Index Metrics
-
H-Index63
-
i10 Index216
-
Citation Counts16,343
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Premium Data
* Total H Index Rankings
Rankings
51,067
World Rank
19,749
Country Rank
15
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
52,093
World Rank
20,065
Country Rank
16
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
55,116
World Rank
21,086
Country Rank
17
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
62,462
World Rank
23,562
Country Rank
18
University
Ranking Based On Selection:
18
Medical and Health Sciences / Immunology
Antimicrobial Resistance | Innate Immunity | Gut Health | Gut Microbiom
Antimicrobial Resistance | Innate Immunity | Gut Health | Gut Microbiom
H-Index Metrics
-
H-Index58
-
i10 Index106
-
Citation Counts16,409
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* Total H Index Rankings
Rankings
62,891
World Rank
23,692
Country Rank
19
University
Ranking Based On Selection:
19
Natural Sciences / Mathematical Sciences
Nonlinear Partial Differential Equations | Mathematical Fluid Mechanic
Nonlinear Partial Differential Equations | Mathematical Fluid Mechanic
H-Index Metrics
-
H-Index58
-
i10 Index137
-
Citation Counts10,630
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Premium Data
* Total H Index Rankings
Rankings
65,075
World Rank
24,453
Country Rank
20
University
Ranking Based On Selection:
20
Engineering & Technology / Biomedical Engineering
addiction | depression | brain imaging | reward | obesit
addiction | depression | brain imaging | reward | obesit
H-Index Metrics
-
H-Index57
-
i10 Index83
-
Citation Counts24,129
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* Total H Index Rankings
Rankings
66,023
World Rank
24,730
Country Rank
21
University
Ranking Based On Selection:
21
Natural Sciences / Molecular Biology & Genetics
Anaerobic fungi | Microbiology | microbial ecology | environmental microbiology | genomic
Anaerobic fungi | Microbiology | microbial ecology | environmental microbiology | genomic
H-Index Metrics
-
H-Index57
-
i10 Index97
-
Citation Counts18,199
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Premium Data
* Total H Index Rankings
Rankings
67,031
World Rank
25,046
Country Rank
22
University
Ranking Based On Selection:
22
Engineering & Technology / Mechanical Engineering
ground source heat pump systems | air conditioning | load calculation
ground source heat pump systems | air conditioning | load calculation
H-Index Metrics
-
H-Index57
-
i10 Index144
-
Citation Counts12,724
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Premium Data
* Total H Index Rankings
Rankings
67,587
World Rank
25,260
Country Rank
23
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
69,222
World Rank
25,797
Country Rank
24
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
73,517
World Rank
27,125
Country Rank
25
University
Ranking Based On Selection:
25
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