The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 6 years. As of Jan 30, 2025, 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 (873.690) 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 IndexRankings
Ranking Based On Selection: 26
Metrics
H-Index
i10 Index
Citation Counts
40
100
5,283
* Total H IndexRankings
Ranking Based On Selection: 27
Crime
Delinquency
Drug Use
Religion
Spirituality
Metrics
H-Index
i10 Index
Citation Counts
40
75
9,697
* Total H IndexRankings
Ranking Based On Selection: 28
Freshwater science
ecological thresholds
community ecology
rivers
phosphorus
Metrics
H-Index
i10 Index
Citation Counts
39
79
6,279
* Total H IndexRankings
Ranking Based On Selection: 29
Aquatic Toxicology
Environmental Genomics
Environmental Toxicology
Evolutionary Toxicology
Nanotoxicology
Metrics
H-Index
i10 Index
Citation Counts
38
68
4,720
* Total H IndexRankings
Ranking Based On Selection: 30
HVAC
Frost Formation
heat pumps
air conditioning
energy management
Metrics
H-Index
i10 Index
Citation Counts
37
104
4,789
* Total H IndexRankings
Ranking Based On Selection: 31
Metrics
H-Index
i10 Index
Citation Counts
36
62
4,231
* Total H IndexRankings
Ranking Based On Selection: 32
Stem cells
bioinformatics
immunology
Metrics
H-Index
i10 Index
Citation Counts
36
49
9,741
* Total H IndexRankings
Ranking Based On Selection: 33
gifted
assessment
special education
Metrics
H-Index
i10 Index
Citation Counts
36
80
6,112
* Total H IndexRankings
Ranking Based On Selection: 34
Religion
ethics
conservation biology
ecology
environmental
Metrics
H-Index
i10 Index
Citation Counts
36
70
5,101
* Total H IndexRankings
Ranking Based On Selection: 35
Entrepreneurship
Metrics
H-Index
i10 Index
Citation Counts
35
46
4,818
* Total H IndexRankings
Ranking Based On Selection: 36
Earth Systems
Biogeochemistry
climate-vegetation-soil feedbacks
Metrics
H-Index
i10 Index
Citation Counts
35
57
11,704
* Total H IndexRankings
Ranking Based On Selection: 37
Hydrology
Engineering Geology
Geomorphology
Metrics
H-Index
i10 Index
Citation Counts
35
62
9,654
* Total H IndexRankings
Ranking Based On Selection: 38
intervening with challenging behavior
early literacy
classroom management
Metrics
H-Index
i10 Index
Citation Counts
35
50
4,729
* Total H IndexRankings
Ranking Based On Selection: 39
Modeling
Conservation Biology
Remote Sensing
Plant Ecology
Metrics
H-Index
i10 Index
Citation Counts
35
90
4,704
* Total H IndexRankings
Ranking Based On Selection: 40
atmospheric chemistry
carbonaceous aerosols
radiocarbon
Metrics
H-Index
i10 Index
Citation Counts
34
58
4,983
* Total H IndexRankings
Ranking Based On Selection: 41
Philosophy
Philosophy of science
Philosophy of medicine
Metrics
H-Index
i10 Index
Citation Counts
34
71
5,329
* Total H IndexRankings
Ranking Based On Selection: 42
Exercise Physiology
Metabolic Dysfunction
Adipokines
Vascular Function
Metrics
H-Index
i10 Index
Citation Counts
34
54
5,464
* Total H IndexRankings
Ranking Based On Selection: 43
Quantum Gravity and Cosmology
Metrics
H-Index
i10 Index
Citation Counts
33
81
3,714
* Total H IndexRankings
Ranking Based On Selection: 44
Paleoclimatology
Paleobotany
Ecology
Paleomagnetism
Geology
Metrics
H-Index
i10 Index
Citation Counts
33
61
3,509
* Total H IndexRankings
Ranking Based On Selection: 45
Landscape Ecology
Habitat Evaluation
Wildland Recreation Ecology
Statistical Predictive Modeling
Metrics
H-Index
i10 Index
Citation Counts
32
49
3,626
* Total H IndexRankings
Ranking Based On Selection: 46
Biology
Metrics
H-Index
i10 Index
Citation Counts
31
42
5,198
* Total H IndexRankings
Ranking Based On Selection: 47
Religion
Family
Youth
Metrics
H-Index
i10 Index
Citation Counts
31
44
4,104
* Total H IndexRankings
Ranking Based On Selection: 48
Boron Chemistry
Organic Chemistry
Organometallic Chemistry
Materials Chemistry
Metrics
H-Index
i10 Index
Citation Counts
31
48
3,230
* Total H IndexRankings
Ranking Based On Selection: 49
entrepreneurship
well-being
institutions
Metrics
H-Index
i10 Index
Citation Counts
30
39
4,253
* Total H IndexRankings
Ranking Based On Selection: 50
nanoscience
energy
plasmonics
materials
Metrics
H-Index
i10 Index
Citation Counts
30
50
4,333
Wang Liang
Metrics
H-Index
i10-Index
Citation Counts
40
100
5,283
Sung Joon Jang
Metrics
H-Index
i10-Index
Citation Counts
40
75
9,697
Crime
Delinquency
Drug Use
Religion
Spirituality
Ryan S King
Metrics
H-Index
i10-Index
Citation Counts
39
79
6,279
Freshwater science
ecological thresholds
community ecology
rivers
phosphorus
Cole W Matson
Metrics
H-Index
i10-Index
Citation Counts
38
68
4,720
Aquatic Toxicology
Environmental Genomics
Environmental Toxicology
Evolutionary Toxicology
Nanotoxicology
Dennis L O Neal
Metrics
H-Index
i10-Index
Citation Counts
37
104
4,789
HVAC
Frost Formation
heat pumps
air conditioning
energy management
Michael P Muehlenbein
Metrics
H-Index
i10-Index
Citation Counts
36
62
4,231
Joni H Ylostalo
Metrics
H-Index
i10-Index
Citation Counts
36
49
9,741
Stem cells
bioinformatics
immunology
Susan K Johnsen
Metrics
H-Index
i10-Index
Citation Counts
36
80
6,112
gifted
assessment
special education
Susan P Bratton
Metrics
H-Index
i10-Index
Citation Counts
36
70
5,101
Religion
ethics
conservation biology
ecology
environmental
Matthew S Wood
Metrics
H-Index
i10-Index
Citation Counts
35
46
4,818
William Hockaday
Metrics
H-Index
i10-Index
Citation Counts
35
57
11,704
Earth Systems
Biogeochemistry
climate-vegetation-soil feedbacks
Peter M Allen
Metrics
H-Index
i10-Index
Citation Counts
35
62
9,654
Hydrology
Engineering Geology
Geomorphology
Shanna Hagan Burke
Metrics
H-Index
i10-Index
Citation Counts
35
50
4,729
intervening with challenging behavior
early literacy
classroom management
Joseph D White
Metrics
H-Index
i10-Index
Citation Counts
35
90
4,704
Modeling
Conservation Biology
Remote Sensing
Plant Ecology
Rebecca J Sheesley
Metrics
H-Index
i10-Index
Citation Counts
34
58
4,983
atmospheric chemistry
carbonaceous aerosols
radiocarbon
James A Marcum
Metrics
H-Index
i10-Index
Citation Counts
34
71
5,329
Philosophy
Philosophy of science
Philosophy of medicine
Peter W Grandjean
Metrics
H-Index
i10-Index
Citation Counts
34
54
5,464
Exercise Physiology
Metabolic Dysfunction
Adipokines
Vascular Function
Tao Zhuœ±Æ¶›
Metrics
H-Index
i10-Index
Citation Counts
33
81
3,714
Daniel Peppe
Metrics
H-Index
i10-Index
Citation Counts
33
61
3,509
Paleoclimatology
Paleobotany
Ecology
Paleomagnetism
Geology
Kevin J Gutzwiller
Metrics
H-Index
i10-Index
Citation Counts
32
49
3,626
Landscape Ecology
Habitat Evaluation
Wildland Recreation Ecology
Statistical Predictive Modeling
R Jason Pitts
Metrics
H-Index
i10-Index
Citation Counts
31
42
5,198
Jeremy Uecker
Metrics
H-Index
i10-Index
Citation Counts
31
44
4,104
Caleb Martin
Metrics
H-Index
i10-Index
Citation Counts
31
48
3,230
Boron Chemistry
Organic Chemistry
Organometallic Chemistry
Materials Chemistry
Boris Nikolaev
Metrics
H-Index
i10-Index
Citation Counts
30
39
4,253
entrepreneurship
well-being
institutions
Kevin L Shuford
Metrics
H-Index
i10-Index
Citation Counts
30
50
4,333
nanoscience
energy
plasmonics
materials