University, Subject, Country, Region, World
Japan 38.236 Scientists Subject Rankings - 2025
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 31, 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: 51
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
Metrics
H-Index
i10 Index
Citation Counts
124
901
70,900
* Total H IndexRankings
Ranking Based On Selection: 52
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Analog_Electronics
Metrics
H-Index
i10 Index
Citation Counts
123
641
67,772
* Total H IndexRankings
Ranking Based On Selection: 53
Neuroscience neuropeptides
Metrics
H-Index
i10 Index
Citation Counts
122
552
72,117
* Total H IndexRankings
Ranking Based On Selection: 54
Organic Synthesis
Catalysis
Organometallic
Total synthesis
Metrics
H-Index
i10 Index
Citation Counts
122
679
56,585
* Total H IndexRankings
Ranking Based On Selection: 55
Cancer biology
proteolytic regulation of cells
metalloproteinases
Metrics
H-Index
i10 Index
Citation Counts
122
329
50,699
* Total H IndexRankings
Ranking Based On Selection: 56
Stem Cell Biology
Hematology
Metrics
H-Index
i10 Index
Citation Counts
121
317
52,950
* Total H IndexRankings
Ranking Based On Selection: 57
Metrics
H-Index
i10 Index
Citation Counts
120
646
109,491
* Total H IndexRankings
Ranking Based On Selection: 58
Metrics
H-Index
i10 Index
Citation Counts
120
705
89,494
* Total H IndexRankings
Ranking Based On Selection: 59
Carbon Science
Applications of novel carbon materials
nanostructured carbons
Nanocarbons
Metrics
H-Index
i10 Index
Citation Counts
119
622
62,003
* Total H IndexRankings
Ranking Based On Selection: 60
pathology endocrinology breast cancer
Metrics
H-Index
i10 Index
Citation Counts
118
947
72,618
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* Total H IndexRankings
Ranking Based On Selection: 61
mathematics
Metrics
H-Index
i10 Index
Citation Counts
117
1,022
62,797
* Total H IndexRankings
Ranking Based On Selection: 62
Metrics
H-Index
i10 Index
Citation Counts
117
458
77,592
* Total H IndexRankings
Ranking Based On Selection: 63
Microbiome
Metagenomics
genomics
Metrics
H-Index
i10 Index
Citation Counts
117
351
104,414
* Total H IndexRankings
Ranking Based On Selection: 64
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
117
456
54,268
* Total H IndexRankings
Ranking Based On Selection: 65
neuroscience
psychiatry
biomarker
translational
Metrics
H-Index
i10 Index
Citation Counts
115
840
60,106
* Total H IndexRankings
Ranking Based On Selection: 66
Cell Biology
Metrics
H-Index
i10 Index
Citation Counts
115
235
105,910
* Total H IndexRankings
Ranking Based On Selection: 67
Layered compounds
2D materials
nanosheets
Metrics
H-Index
i10 Index
Citation Counts
115
513
54,511
* Total H IndexRankings
Ranking Based On Selection: 68
Genome biology
Plant-microbe interactions
Comparative genomics
Metrics
H-Index
i10 Index
Citation Counts
115
336
66,377
* Total H IndexRankings
Ranking Based On Selection: 69
neural development
neural stem cell
developmental biology
segmentation clock
Metrics
H-Index
i10 Index
Citation Counts
115
252
45,716
* Total H IndexRankings
Ranking Based On Selection: 70
Rheumatology
Metrics
H-Index
i10 Index
Citation Counts
114
839
65,194
* Total H IndexRankings
Ranking Based On Selection: 71
ionic liquid
polymer
soft matter
lithium battery
electrochemical device
Metrics
H-Index
i10 Index
Citation Counts
111
412
51,031
* Total H IndexRankings
Ranking Based On Selection: 72
neuroscience
Metrics
H-Index
i10 Index
Citation Counts
111
325
54,811
* Total H IndexRankings
Ranking Based On Selection: 73
Plant Science
Phytohormones
Nitrogen Nutrition
Plant Biology
Metrics
H-Index
i10 Index
Citation Counts
110
269
45,150
* Total H IndexRankings
Ranking Based On Selection: 74
Semiconductor devices
Opto electronics
Power devices
High frequency devices
photocathode
Metrics
H-Index
i10 Index
Citation Counts
110
807
61,769
* Total H IndexRankings
Ranking Based On Selection: 75
reproductive biology
gene-manipulated animals
development
Metrics
H-Index
i10 Index
Citation Counts
109
276
44,110
Seiji Shinkai
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
124
901
70,900
Molecular Machine
Supramolecular Chemistry
Self-assembly
Molecular Recognition
Polymer
Biomedical Signal Processing
Neural Engineering
EEG
Tensor Decomposition
Analog_Electronics
Takeshi Sakurai
Kanazawa University
Kanazawa, Japan
Metrics
H-Index
i10-Index
Citation Counts
122
552
72,117
Hisashi Yamamoto
Chubu University
Kasugai, Japan
Metrics
H-Index
i10-Index
Citation Counts
122
679
56,585
Organic Synthesis
Catalysis
Organometallic
Total synthesis
Motoharu Seiki
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
122
329
50,699
Cancer biology
proteolytic regulation of cells
metalloproteinases
Toshio Suda
Kumamoto University
Kumamoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
121
317
52,950
Stem Cell Biology
Hematology
Hideo Ohno
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
120
646
109,491
Hiroshi Maeda
Sojo University
Kumamoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
120
705
89,494
Morinobu Endo
Shinshu University
Matsumoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
119
622
62,003
Carbon Science
Applications of novel carbon materials
nanostructured carbons
Nanocarbons
Hironobu Sasano
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
118
947
72,618
pathology endocrinology breast cancer
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Takeshi Taniguchi
Kurume University
Kurume, Japan
Metrics
H-Index
i10-Index
Citation Counts
117
1,022
62,797
Tatsuya Kobayashi
Metrics
H-Index
i10-Index
Citation Counts
117
458
77,592
Masahira Hattori
Waseda University
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
117
351
104,414
Microbiome
Metagenomics
genomics
Zenji Horita
Kyushu University
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
117
456
54,268
Kenji Hashimoto
Chiba University
Chiba, Japan
Metrics
H-Index
i10-Index
Citation Counts
115
840
60,106
neuroscience
psychiatry
biomarker
translational
Tamotsu Yoshimori
Osaka University
Suita, Japan
Metrics
H-Index
i10-Index
Citation Counts
115
235
105,910
Takayoshi Sasaki
Metrics
H-Index
i10-Index
Citation Counts
115
513
54,511
Layered compounds
2D materials
nanosheets
Shusei Sato
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
115
336
66,377
Genome biology
Plant-microbe interactions
Comparative genomics
neural development
neural stem cell
developmental biology
segmentation clock
Yoshiya Tanaka
Metrics
H-Index
i10-Index
Citation Counts
114
839
65,194
Masayoshi Watanabe
Yokohama National University
Yokohama, Japan
Metrics
H-Index
i10-Index
Citation Counts
111
412
51,031
ionic liquid
polymer
soft matter
lithium battery
electrochemical device
Mitsuo Kawato
Metrics
H-Index
i10-Index
Citation Counts
111
325
54,811
Hitoshi Sakakibara
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
110
269
45,150
Plant Science
Phytohormones
Nitrogen Nutrition
Plant Biology
Hiroshi Amano 天野 浩
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
110
807
61,769
Semiconductor devices
Opto electronics
Power devices
High frequency devices
photocathode
reproductive biology
gene-manipulated animals
development