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 (0) 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].
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environmental engineering | environmental science | biogeochemistry | air pollution effects | human disturbance of ecosystem
H-Index Metrics
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H-Index121
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i10 Index523
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Citation Counts58,891
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experimental particle physics | lartpc detectors | experimental neutrino physic
H-Index Metrics
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H-Index96
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i10 Index280
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Citation Counts31,524
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Assessment and treatment of substance use disorders | HIV prevention and interventio
H-Index Metrics
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H-Index96
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i10 Index373
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Citation Counts29,481
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Econometrics | Panel data | Spatial econometrics | Applied Econometric
H-Index Metrics
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H-Index84
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i10 Index236
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Citation Counts67,841
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gerontology | families | intergenerational relations | China andEast Asi
H-Index Metrics
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H-Index80
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i10 Index193
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Citation Counts26,238
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Lithium batteries | photovoltaics | sensors & sensor networks | precision agricultu
H-Index Metrics
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H-Index71
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i10 Index232
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Citation Counts17,786
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Vibrational Optical Activity | Vibrational Circular Dichroism | Raman Optical Activit
H-Index Metrics
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H-Index69
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i10 Index259
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Citation Counts16,748
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