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 Dec 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 (1.131.699) 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].
Rankings
Rankings
Rankings
Rankings
medicinal and aromatic plants | pharmacy | pharmacognosy | pharmacology | essential oil
H-Index Metrics
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H-Index95
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i10 Index703
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Citation Counts44,717
Rankings
Hospitality | Tourism | Internal marketing | services marketing | strategic managemen
H-Index Metrics
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H-Index94
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i10 Index196
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Citation Counts29,546
Rankings
Rankings
Climate Change | Environmental Economics | Renewable Energy | Applied Econometrics | Energy Polic
H-Index Metrics
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H-Index88
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i10 Index229
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Citation Counts22,133
Rankings
Clinical Research | COVID-19 | Virology | Molecular biology | Infectious Disease
H-Index Metrics
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H-Index88
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i10 Index197
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Citation Counts149,487
Rankings
Rankings
Ceramic Matrix Composites | UHTCs | Metal Matrix Composites | Sintering | Synthesi
H-Index Metrics
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H-Index84
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i10 Index208
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Citation Counts15,375
Rankings
Macroeconomics | Econometrics | Financial Economics | Energy Economics | Environmental Economic
H-Index Metrics
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H-Index73
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i10 Index190
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Citation Counts18,304
Rankings
Food Nanocapsulation | Food Colloid and Hydrocolloid | Food Biopolymers | Active and Nanopackaging | Food Rheolog
H-Index Metrics
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H-Index69
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i10 Index172
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Citation Counts15,525
Rankings
Environmental Engineering | Environmental Biotechnology | Biodegradation | Activated Sludge | Industrial Pollutio
H-Index Metrics
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H-Index67
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i10 Index280
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Citation Counts15,579
Rankings
Computational Mechanics | Micro and Nanomechanics | Materials Mechanics | Energy | Bio-Mechanic
H-Index Metrics
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H-Index62
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i10 Index175
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Citation Counts11,594
Rankings
Black Holes | Cosmology | Gravitational lensing | Quantum Gravity | Quasinormal mode
H-Index Metrics
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H-Index61
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i10 Index175
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Citation Counts11,716
Rankings
Macroeconomics | Forecasting | Business Analytics | Risk Managemen
H-Index Metrics
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H-Index61
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i10 Index212
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Citation Counts15,278
Rankings
Electrochemical DNA Biosensor | microRNA | p19 protein | Crispr | Artificial Intelligenc
H-Index Metrics
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H-Index61
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i10 Index142
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Citation Counts12,390
Rankings
Rankings
Biomaterials | Tissue Engineering | Surface Modifications | Hydrogels | Bioink
H-Index Metrics
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H-Index56
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i10 Index162
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Citation Counts11,467
Rankings
Computational & Applied Mathematics | Modeling & Simulation | Biomathematics | Numerical Method
H-Index Metrics
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H-Index54
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i10 Index361
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Citation Counts13,325
Rankings
Rankings
Pharmacognosy | Phytochemistry | Natural Product
H-Index Metrics
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H-Index53
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i10 Index189
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Citation Counts9,417
Rankings
Advanced Oxidation Processes | Water and Wastewater Treatment | Photocatalysis | Nanomaterials | Materials Chemistr
H-Index Metrics
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H-Index52
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i10 Index62
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Citation Counts7,943
Rankings
Rankings
Applied Mathematics | Stochastic Optimization | Simulated Annealing | Neural Networ
H-Index Metrics
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H-Index51
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i10 Index163
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Citation Counts7,361
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