| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Nanotechnology | 101 | 2,772 | 1.0K | 1.3K |
| 2 | Chemistry | 104 | 1,879 | 2.5K | 3.5K |
| 3 | Artificial Intelligence | 59 | 1,339 | 737 | 809 |
| 4 | Biocompatible Materials | 24 | 1,038 | 1.7K | 1.7K |
| 5 | Molecular Biology | 44 | 1,037 | 3.2K | 4.1K |
| 6 | Pollution | 24 | 996 | 2.4K | 2.3K |
| 7 | Ecology | 21 | 953 | 3.1K | 2.9K |
| 8 | environmental pollution | 23 | 935 | 1.7K | 1.5K |
| 9 | Biochemistry | 41 | 890 | 3.6K | 4.0K |
| 10 | Economics | 71 | 818 | 884 | 1.1K |
| 11 | Biophysics | 25 | 772 | 2.9K | 2.4K |
| 12 | Environmental monitoring | 15 | 757 | 1.9K | 1.5K |
| 13 | Nanostructured Materials | 39 | 719 | 1.1K | 1.4K |
| 14 | Materials | 61 | 672 | 1.7K | 2.7K |
| 15 | Materials Science | 33 | 601 | 1.9K | 2.3K |
| 16 | Biomedical Engineering | 24 | 575 | 2.1K | 2.2K |
| 17 | Fuzzy systems | 28 | 568 | 276 | 182 |
| 18 | Medicine | 32 | 566 | 5.2K | 6.9K |
| 19 | finance | 41 | 547 | 433 | 732 |
| 20 | Polymers | 37 | 546 | 1.8K | 2.1K |
| 21 | Physics | 78 | 529 | 2.8K | 6.9K |
| 22 | Biotechnology | 18 | 483 | 3.4K | 4.0K |
| 23 | Catalysis | 21 | 461 | 1.6K | 1.9K |
| 24 | Electronics | 38 | 445 | 1.2K | 1.5K |
| 25 | Science | 26 | 434 | 5.7K | 8.4K |
| 26 | Technology | 45 | 426 | 950 | 1.7K |
| 27 | Plant physiology | 11 | 403 | 1.2K | 1.3K |
| 28 | Optics | 28 | 400 | 2.0K | 1.9K |
| 29 | Solid State Physics | 30 | 388 | 1.7K | 2.0K |
| 30 | polymerization | 29 | 378 | 1.6K | 2.0K |
| 31 | Colloids | 16 | 368 | 1.8K | 2.1K |
| 32 | Bioengineering | 15 | 354 | 2.3K | 3.3K |
| 33 | Research | 17 | 351 | 6.0K | 6.6K |
| 34 | microwave communication systems | 9 | 326 | 251 | 151 |
| 34 | Microwave devices | 9 | 326 | 306 | 173 |
| 36 | Botany | 4 | 305 | 4.0K | 2.7K |
| 37 | Signal Processing | 17 | 285 | 1.1K | 1.5K |
| 38 | Biosensors | 7 | 272 | 795 | 1.0K |
| 38 | Bioelectronics | 7 | 272 | 631 | 898 |
| 40 | Quality Control | 6 | 256 | 1.2K | 673 |
| 41 | Electrical Engineering | 11 | 249 | 2.4K | 1.4K |
| 42 | environmental protection | 14 | 246 | 1.6K | 2.5K |
| 43 | Mathematics | 36 | 245 | 2.3K | 2.5K |
| 44 | Environmental Management | 8 | 244 | 1.7K | 2.1K |
| 45 | International Finance | 10 | 240 | 585 | 558 |
| 46 | Environment | 8 | 238 | 3.8K | 5.0K |
| 47 | Surface Chemistry | 9 | 237 | 2.3K | 2.4K |
| 48 | Intelligent Transportation Systems | 5 | 236 | 834 | 552 |
| 49 | plant molecular biology | 3 | 234 | 1.8K | 1.5K |
| 50 | Environmental Engineering | 13 | 231 | 2.2K | 3.0K |
| 51 | Nanostructures | 22 | 229 | 622 | 1.6K |
| 51 | Condensed Matter | 36 | 229 | 1.5K | 2.3K |
| 53 | Economic History | 28 | 227 | 1.2K | 1.4K |
| 54 | Total Quality Management | 3 | 221 | 422 | 98 |
| 55 | Computational Intelligence | 7 | 220 | 597 | 309 |
| 56 | Analytical Chemistry | 17 | 214 | 2.5K | 3.4K |
| 57 | Biology | 14 | 206 | 7.1K | 9.7K |
| 58 | Plant tissue culture | 5 | 204 | 649 | 516 |
| 58 | Plant cell culture | 5 | 204 | 574 | 512 |
| 60 | Critical Care | 2 | 202 | 2.7K | 2.0K |
| 60 | Critical Care Medicine | 2 | 202 | 2.4K | 2.0K |
| 62 | Plants | 4 | 198 | 2.4K | 1.9K |
| 63 | Environmental Policy | 8 | 197 | 2.0K | 2.7K |
| 64 | Optical materials | 14 | 193 | 1.3K | 2.1K |
| 65 | Chemical Engineering | 15 | 191 | 2.2K | 3.1K |
| 66 | Hazardous waste | 8 | 189 | 421 | 793 |
| 66 | United States | 7 | 189 | 4.9K | 3.9K |
| 68 | Pharmaceutical Chemistry | 9 | 185 | 3.0K | 3.5K |
| 68 | biological factors | 4 | 185 | 2.2K | 1.5K |
| 70 | Statistics | 21 | 180 | 1.2K | 1.8K |
| 70 | Microelectronics | 27 | 180 | 598 | 1.6K |
| 72 | Microbiology | 7 | 175 | 6.0K | 6.7K |
| 73 | Electrochemistry | 37 | 167 | 1.1K | 2.3K |
| 74 | Information Technology | 11 | 165 | 1.3K | 1.5K |
| 74 | Information Retrieval | 3 | 165 | 512 | 334 |
| 74 | Microwaves | 15 | 165 | 742 | 872 |
| 77 | Engineering | 8 | 162 | 3.2K | 2.6K |
| 78 | Ceramics | 14 | 160 | 833 | 1.1K |
| 79 | Decision making | 12 | 157 | 714 | 1.1K |
| 80 | Corporate governance | 2 | 156 | 637 | 301 |
| 81 | Data Mining | 3 | 153 | 2.0K | 1.3K |
| 82 | Clinical Chemistry | 4 | 150 | 3.1K | 2.9K |
| 83 | Asia | 19 | 148 | 907 | 1.3K |
| 84 | Nanoparticles | 4 | 147 | 2.0K | 1.8K |
| 85 | marketing | 7 | 141 | 1.1K | 1.3K |
| 86 | Regional Planning | 7 | 140 | 1.1K | 1.1K |
| 87 | Soil Mechanics | 3 | 138 | 986 | 661 |
| 88 | Quality of life | 2 | 135 | 2.4K | 1.6K |
| 89 | Plant genetic engineering | 4 | 133 | 1.0K | 1.1K |
| 89 | Statistical physics | 21 | 133 | 1.8K | 2.8K |
| 91 | Rock Mechanics | 4 | 132 | 627 | 497 |
| 91 | Chromatographic analysis | 9 | 132 | 1.3K | 1.5K |
| 91 | Behavior | 8 | 132 | 2.3K | 3.2K |
| 94 | Chromatography | 8 | 129 | 1.2K | 1.3K |
| 94 | nanoscience | 10 | 129 | 2.1K | 3.1K |
| 96 | Cell Biology | 3 | 126 | 5.2K | 5.1K |
| 97 | Tourism | 9 | 116 | 744 | 1.2K |
| 97 | Business Ethics | 3 | 116 | 1.0K | 1.1K |
| 97 | management | 10 | 116 | 1.8K | 2.4K |
| 97 | miniaturization | 2 | 116 | 2.8K | 2.4K |
| 101 | Transgenic plants | 4 | 114 | 491 | 615 |
| 101 | Carbon | 8 | 114 | 451 | 977 |
| 103 | Social Sciences | 3 | 113 | 4.6K | 2.4K |
| 103 | Physiology | 6 | 113 | 3.9K | 4.6K |
| 103 | Mortgages | 6 | 113 | 115 | 174 |
| 106 | Mining Engineering | 2 | 112 | 470 | 170 |
| 107 | Image Processing | 5 | 107 | 1.8K | 1.9K |
| 108 | Sociology | 1 | 106 | 5.6K | 2.5K |
| 109 | Environmental Health | 9 | 101 | 4.1K | 6.3K |
| 110 | Cybernetics | 7 | 100 | 1.1K | 1.6K |
| 110 | Glass | 9 | 100 | 799 | 1.3K |
| 110 | pottery | 9 | 100 | 762 | 1.3K |
| 113 | Comparative Physiology | 5 | 99 | 641 | 792 |
| 113 | Wireless Communication Systems | 7 | 99 | 1.7K | 1.9K |
| 113 | actuators | 19 | 99 | 352 | 1.4K |
| 113 | transducers | 19 | 99 | 352 | 1.4K |
| 117 | Organic Chemistry | 8 | 96 | 2.5K | 3.1K |
| 117 | lasers | 12 | 96 | 1.2K | 1.6K |
| 119 | Cytology | 5 | 93 | 4.4K | 5.5K |
| 119 | Engineering Geology | 5 | 93 | 1.1K | 1.2K |
| 121 | Plant cells | 1 | 91 | 2.0K | 2.0K |
| 122 | Educational Technology | 4 | 90 | 1.4K | 1.3K |
| 122 | Water pollution | 4 | 90 | 2.5K | 2.9K |
| 122 | Water quality management | 4 | 90 | 2.0K | 1.8K |
| 125 | Quantum electronics | 11 | 89 | 970 | 1.4K |
| 126 | Photonics | 9 | 88 | 1.3K | 2.2K |
| 126 | Photochemistry | 17 | 88 | 511 | 1.6K |
| 126 | Photobiology | 17 | 88 | 180 | 991 |
| 129 | Decision Support Systems | 4 | 85 | 210 | 192 |
| 130 | Dynamics | 3 | 83 | 2.0K | 1.4K |
| 130 | Solid State Chemistry | 7 | 83 | 1.3K | 1.7K |
| 132 | Mechatronics | 2 | 82 | 1.1K | 803 |
| 133 | Computer Science | 8 | 81 | 1.4K | 1.7K |
| 133 | Green Chemistry | 3 | 81 | 2.1K | 2.4K |
| 133 | economic policy | 8 | 81 | 1.6K | 1.7K |
| 136 | Sustainable Development | 3 | 78 | 2.1K | 2.1K |
| 136 | China | 6 | 78 | 2.3K | 2.6K |
| 138 | optical devices | 6 | 77 | 320 | 411 |
| 139 | Biochemical Engineering | 3 | 74 | 3.0K | 4.0K |
| 139 | transgenic organisms | 3 | 74 | 325 | 482 |
| 139 | Waste management | 4 | 74 | 1.5K | 1.5K |
| 139 | transgenic animals | 3 | 74 | 308 | 471 |
| 139 | Europa | 3 | 74 | 707 | 576 |
| 144 | Physical Chemistry | 15 | 73 | 1.4K | 2.9K |
| 144 | Information Science | 5 | 73 | 1.6K | 1.9K |
| 146 | Structural dynamics | 5 | 72 | 608 | 931 |
| 146 | structural stability | 5 | 72 | 299 | 388 |
| 148 | Genetic algorithms | 2 | 71 | 421 | 540 |
| 148 | Evolutionary Computation | 2 | 71 | 505 | 620 |
| 150 | Nanoelectronics | 9 | 70 | 277 | 391 |
| 150 | Neural circuitry | 4 | 70 | 1.5K | 2.0K |
| 150 | probabilities | 7 | 70 | 963 | 970 |
| 150 | Detectors | 3 | 70 | 1.8K | 1.5K |
| 154 | Organometallic chemistry | 5 | 69 | 1.5K | 1.7K |
| 154 | Water Purification | 3 | 69 | 1.5K | 1.3K |
| 156 | Engineering Mathematics | 11 | 68 | 1.5K | 2.1K |
| 156 | Bioinorganic chemistry | 4 | 68 | 1.4K | 1.7K |
| 158 | Differential Equations | 3 | 66 | 729 | 434 |
| 158 | Cancer | 1 | 66 | 6.7K | 5.3K |
| 160 | Ferroelectricity | 15 | 65 | 484 | 893 |
| 160 | econometric models | 3 | 65 | 201 | 286 |
| 162 | Zoology | 8 | 64 | 2.0K | 2.7K |
| 163 | Genomics | 2 | 62 | 4.9K | 4.9K |
| 163 | Oncogenes | 1 | 62 | 2.3K | 2.5K |
| 163 | Tropical Medicine | 3 | 62 | 2.3K | 2.3K |
| 166 | Land Use Planning | 1 | 60 | 715 | 562 |
| 166 | animals | 6 | 60 | 1.2K | 1.5K |
| 166 | North America | 6 | 60 | 471 | 769 |
| 166 | educational innovations | 1 | 60 | 932 | 516 |
| 166 | Biodiversity | 6 | 60 | 2.1K | 3.1K |
| 171 | Nanochemistry | 3 | 59 | 1.4K | 1.3K |
| 171 | Plant Genetics | 1 | 59 | 1.4K | 1.2K |
| 171 | Cell differentiation | 1 | 59 | 3.4K | 3.2K |
| 171 | Ethnology | 2 | 59 | 2.1K | 1.3K |
| 171 | Cell death | 1 | 59 | 2.4K | 2.3K |
| 176 | Food | 4 | 58 | 3.4K | 4.2K |
| 177 | Information Systems | 6 | 57 | 1.0K | 1.8K |
| 177 | Mobile Computing | 3 | 57 | 1.3K | 1.2K |
| 177 | Crystal growth | 3 | 57 | 1.3K | 1.5K |
| 180 | Computational Biology | 6 | 56 | 2.9K | 4.3K |
| 180 | Entrepreneurship | 4 | 56 | 772 | 1.2K |
| 182 | Fisheries | 4 | 55 | 1.5K | 1.8K |
| 183 | Landslides | 2 | 54 | 367 | 464 |
| 184 | Business | 6 | 53 | 1.5K | 2.1K |
| 184 | radioactive waste | 2 | 53 | 930 | 1.5K |
| 184 | industrial waste | 2 | 53 | 1.0K | 1.5K |
| 187 | mathematical analysis | 10 | 52 | 1.4K | 1.6K |
| 188 | Surgery | 1 | 51 | 4.2K | 4.0K |
| 188 | Orthopedics | 1 | 51 | 3.2K | 2.5K |
| 188 | biomedicine | 1 | 51 | 2.2K | 1.5K |
| 191 | city planning | 4 | 50 | 1.4K | 1.7K |
| 192 | Chromosome mapping | 2 | 49 | 2.9K | 3.3K |
| 192 | Europe | 6 | 49 | 3.0K | 3.9K |
| 192 | gene mapping | 2 | 49 | 3.1K | 3.7K |
| 195 | Medical Technology | 1 | 48 | 4.0K | 2.8K |
| 195 | Human-Computer Interaction | 2 | 48 | 2.2K | 2.0K |
| 197 | Genetic engineering | 2 | 47 | 3.2K | 3.6K |
| 197 | Numerical Analysis | 5 | 47 | 2.0K | 2.3K |
| 197 | Industrial Microbiology | 2 | 47 | 2.9K | 3.4K |
| 200 | Semiconductors | 13 | 46 | 505 | 1.4K |
| 200 | natural disasters | 5 | 46 | 1.1K | 2.0K |
| 202 | Transport | 2 | 45 | 533 | 715 |
| 202 | Sea | 2 | 45 | 392 | 509 |
| 202 | Fishery resources | 2 | 45 | 506 | 588 |
| 205 | Ergonomics | 1 | 43 | 2.0K | 1.3K |
| 206 | Psychology | 5 | 42 | 5.2K | 7.0K |
| 206 | Agricultural Ecology | 1 | 42 | 2.4K | 2.3K |
| 206 | Social Psychology | 2 | 42 | 2.9K | 3.0K |
| 206 | Plastics | 4 | 42 | 1.8K | 2.1K |
| 210 | Microbial Ecology | 1 | 41 | 4.3K | 4.5K |
| 210 | Medical genetics | 1 | 41 | 5.2K | 5.2K |
| 210 | hazard mitigation | 4 | 41 | 842 | 1.5K |
| 210 | Semiconductor industry | 5 | 41 | 69 | 160 |
| 214 | Fluid Mechanics | 2 | 40 | 2.7K | 2.4K |
| 214 | Plant breeding | 1 | 40 | 1.9K | 1.6K |
| 214 | Vaccines | 2 | 40 | 2.5K | 2.8K |
| 217 | Psychiatry | 4 | 39 | 5.2K | 7.0K |
| 217 | Urban Areas | 3 | 39 | 229 | 353 |
| 217 | India | 1 | 39 | 3.9K | 1.6K |
| 220 | Agricultural Chemistry | 1 | 38 | 4.4K | 3.9K |
| 220 | Mathematical Physics | 8 | 38 | 2.1K | 2.7K |
| 220 | commerce | 6 | 38 | 1.1K | 1.7K |
| 223 | Econometrics | 8 | 37 | 943 | 1.6K |
| 224 | Surface-Active Agents | 2 | 36 | 1.4K | 2.0K |
| 224 | Surface properties | 2 | 36 | 1.4K | 2.0K |
| 224 | internet | 6 | 36 | 1.0K | 1.8K |
| 224 | biological monitoring | 1 | 36 | 1.2K | 1.1K |
| 228 | Solar power plants | 2 | 35 | 327 | 515 |
| 228 | micromechanics | 2 | 35 | 716 | 871 |
| 228 | Photovoltaic Cells | 2 | 35 | 331 | 516 |
| 228 | solar cells | 2 | 35 | 709 | 1.1K |
| 232 | Molecular evolution | 3 | 34 | 1.8K | 3.0K |
| 233 | Computational Linguistics | 2 | 33 | 786 | 595 |
| 233 | Parallel Processing | 2 | 33 | 550 | 758 |
| 233 | Multimedia Systems | 4 | 33 | 1.7K | 2.1K |
| 236 | Telecommunication Systems | 4 | 32 | 1.5K | 1.8K |
| 236 | Earthquake Engineering | 2 | 32 | 1.2K | 1.4K |
| 236 | Magnetic Materials | 5 | 32 | 1.4K | 2.2K |
| 236 | Intelligent Control Systems | 4 | 32 | 1.1K | 1.3K |
| 236 | human behavior | 1 | 32 | 4.2K | 4.3K |
| 236 | Porous materials | 2 | 32 | 1.1K | 1.1K |
| 242 | Functional Analysis | 1 | 31 | 1.3K | 751 |
| 242 | Nonlinear functional analysis | 1 | 31 | 864 | 669 |
| 242 | Zeolites | 2 | 31 | 493 | 816 |
| 242 | Metals | 6 | 31 | 1.6K | 2.6K |
| 246 | Computer Vision | 2 | 30 | 1.2K | 1.7K |
| 246 | wood | 1 | 30 | 967 | 735 |
| 248 | Energy Conversion | 2 | 29 | 1.6K | 2.2K |
| 248 | Statistical Mechanics | 14 | 29 | 359 | 1.1K |
| 248 | Virology | 3 | 29 | 4.0K | 6.0K |
| 248 | Happiness | 1 | 29 | 920 | 892 |
| 248 | System analysis | 4 | 29 | 2.4K | 3.5K |
| 253 | Genetics | 1 | 28 | 7.1K | 7.2K |
| 253 | Industrial Engineering | 4 | 28 | 2.0K | 3.2K |
| 253 | Solar Energy | 3 | 28 | 1.1K | 2.0K |
| 253 | Raman spectroscopy | 1 | 28 | 1.4K | 1.4K |
| 253 | Bioorganic chemistry | 4 | 28 | 2.7K | 4.2K |
| 253 | arthritis | 3 | 28 | 1.7K | 2.9K |
| 253 | computer networks | 3 | 28 | 2.6K | 3.0K |
| 260 | Risk | 1 | 27 | 1.3K | 1.3K |
| 260 | insurance | 1 | 27 | 641 | 487 |
| 260 | Computer Literacy | 2 | 27 | 303 | 456 |
| 260 | Informatics | 3 | 27 | 1.1K | 1.7K |
| 264 | Geotechnical Engineering | 1 | 26 | 902 | 852 |
| 264 | Bioinformatics | 3 | 26 | 2.9K | 4.1K |
| 266 | Sustainable Engineering | 1 | 25 | 3.0K | 3.1K |
| 266 | Environmental Chemistry | 1 | 25 | 4.3K | 4.3K |
| 266 | food technology | 2 | 25 | 3.1K | 4.0K |
| 266 | Renewable Energy Sources | 2 | 25 | 2.6K | 3.9K |
| 266 | energy conservation | 3 | 25 | 1.9K | 3.2K |
| 266 | Social Entrepreneurship | 1 | 25 | 115 | 144 |
| 266 | Australia | 4 | 25 | 2.1K | 3.2K |
| 273 | Organometallic compounds | 2 | 24 | 1.8K | 2.2K |
| 274 | Medical Laboratory Science | 1 | 23 | 4.5K | 4.7K |
| 274 | Nuclear Physics | 5 | 23 | 3.8K | 5.0K |
| 274 | Heat Exchangers | 2 | 23 | 732 | 1.4K |
| 277 | Pharmacology | 2 | 22 | 7.3K | 8.8K |
| 277 | Mechanical Engineering | 4 | 22 | 2.5K | 3.1K |
| 277 | Regional Economics | 2 | 22 | 635 | 786 |
| 277 | Metallography | 2 | 22 | 554 | 775 |
| 281 | Pediatrics | 1 | 21 | 5.1K | 5.2K |
| 281 | Internet of Things | 4 | 21 | 891 | 1.6K |
| 281 | Sports Medicine | 3 | 21 | 3.5K | 4.1K |
| 281 | economic indicators | 2 | 21 | 155 | 214 |
| 281 | Nonlinear Optics | 1 | 21 | 477 | 346 |
| 281 | Phytotherapy | 1 | 21 | 1.8K | 2.1K |
| 281 | Aging | 2 | 21 | 4.4K | 5.0K |
| 288 | Systems Engineering | 5 | 20 | 2.0K | 3.4K |
| 288 | Optoelectronics | 3 | 20 | 536 | 661 |
| 290 | Marine Biology | 3 | 19 | 2.8K | 4.3K |
| 290 | Systems Analysis | 2 | 19 | 1.6K | 2.1K |
| 290 | Marine Biotechnology | 3 | 19 | 270 | 796 |
| 290 | Capital market | 2 | 19 | 155 | 303 |
| 290 | Cellulose | 1 | 19 | 1.3K | 1.5K |
| 295 | Nutrition | 1 | 18 | 8.2K | 8.6K |
| 295 | Neuropsychology | 1 | 18 | 4.0K | 4.4K |
| 295 | Neurochemistry | 1 | 18 | 4.0K | 4.6K |
| 295 | Food Microbiology | 1 | 18 | 2.4K | 2.9K |
| 295 | Geographic information systems | 2 | 18 | 1.6K | 1.9K |
| 295 | Ultrasonics | 1 | 18 | 2.0K | 2.5K |
| 295 | Sound | 1 | 18 | 2.1K | 1.8K |
| 295 | Brain | 1 | 18 | 4.0K | 4.5K |
| 295 | Radio | 1 | 18 | 2.8K | 2.7K |
| 295 | Ultrasound | 1 | 18 | 1.2K | 1.4K |
| 295 | Radio frequency | 1 | 18 | 1.2K | 1.1K |
| 306 | Database Management | 3 | 17 | 721 | 1.2K |
| 306 | Development Economics | 3 | 17 | 597 | 1.1K |
| 306 | Demography | 2 | 17 | 1.1K | 1.6K |
| 306 | Expert Systems | 3 | 17 | 205 | 532 |
| 310 | Hydrology | 1 | 16 | 4.3K | 4.3K |
| 310 | Developmental Biology | 1 | 16 | 3.7K | 4.4K |
| 310 | Cognitive Science | 1 | 16 | 2.8K | 3.1K |
| 310 | Telecommunication | 2 | 16 | 3.4K | 3.8K |
| 310 | biological evolution | 2 | 16 | 3.1K | 4.6K |
| 310 | Exercise | 3 | 16 | 1.7K | 2.6K |
| 316 | Cryptography | 1 | 15 | 1.3K | 1.0K |
| 316 | Psycholinguistics | 2 | 15 | 1.2K | 1.8K |
| 316 | Tissue Engineering | 1 | 15 | 714 | 851 |
| 316 | Coding Theory | 1 | 15 | 705 | 589 |
| 316 | Molecules | 4 | 15 | 1.5K | 2.5K |
| 316 | Enzyme | 1 | 15 | 577 | 884 |
| 316 | Microscopy | 3 | 15 | 2.5K | 3.2K |
| 316 | coal | 1 | 15 | 1.3K | 1.9K |
| 316 | enzymes | 1 | 15 | 2.5K | 3.0K |
| 325 | Information Theory | 5 | 14 | 1.2K | 2.4K |
| 325 | Distance Education | 1 | 14 | 979 | 1.0K |
| 325 | Clinical Pharmacology | 1 | 14 | 2.5K | 2.8K |
| 325 | Oxidative stress | 1 | 14 | 2.4K | 3.2K |
| 325 | Heterocyclic chemistry | 1 | 14 | 1.2K | 1.0K |
| 325 | Cellular senescence | 1 | 14 | 1.7K | 2.4K |
| 325 | Technological Innovations | 1 | 14 | 2.0K | 2.0K |
| 325 | telecommunication in education | 1 | 14 | 175 | 125 |
| 333 | Structural design | 1 | 13 | 1.2K | 1.4K |
| 333 | Plant Biotechnology | 2 | 13 | 1.2K | 2.0K |
| 333 | Natural resources | 1 | 13 | 1.3K | 1.5K |
| 333 | Smart Materials | 1 | 13 | 1.4K | 1.7K |
| 333 | Solitons | 2 | 13 | 534 | 1.1K |
| 333 | Fractals | 2 | 13 | 868 | 1.4K |
| 333 | Chaos | 2 | 13 | 534 | 1.1K |
| 333 | Nervous system | 2 | 13 | 3.6K | 5.5K |
| 341 | Obstetrics | 5 | 12 | 2.6K | 5.2K |
| 341 | Linguistics | 1 | 12 | 2.8K | 2.1K |
| 341 | Multivariate Analysis | 3 | 12 | 321 | 707 |
| 341 | Electromagnetic waves | 1 | 12 | 636 | 630 |
| 341 | Radio wave propagation | 1 | 12 | 1.8K | 1.7K |
| 341 | Screening | 1 | 12 | 541 | 735 |
| 341 | Futures | 1 | 12 | 697 | 799 |
| 341 | Cognition | 1 | 12 | 2.9K | 3.4K |
| 349 | Geriatrics | 1 | 11 | 6.0K | 6.1K |
| 349 | Computational Chemistry | 2 | 11 | 1.1K | 1.7K |
| 349 | Building Materials | 1 | 11 | 1.7K | 2.3K |
| 349 | Algorithms | 1 | 11 | 1.3K | 1.3K |
| 349 | Control Theory | 4 | 11 | 1.7K | 3.0K |
| 349 | Calculus of Variations | 1 | 11 | 870 | 825 |
| 349 | Ceramic materials | 2 | 11 | 1.4K | 2.3K |
| 349 | Biometrics | 3 | 11 | 1.4K | 2.4K |
| 349 | Evolution | 1 | 11 | 3.8K | 4.5K |
| 358 | Software Engineering | 2 | 10 | 1.5K | 2.0K |
| 358 | Metallurgy | 3 | 10 | 2.6K | 4.0K |
| 358 | Ichthyology | 1 | 10 | 1.1K | 1.1K |
| 358 | Plasma chemistry | 1 | 10 | 855 | 1.1K |
| 358 | Biological Systems | 1 | 10 | 1.7K | 2.2K |
| 358 | East Asia | 2 | 10 | 1.3K | 1.2K |
| 358 | Eastern Europe | 2 | 10 | 1.9K | 1.8K |
| 358 | Chemical analysis | 1 | 10 | 2.4K | 3.1K |
| 358 | machinery | 1 | 10 | 1.3K | 1.3K |
| 358 | Plasma polymerization | 1 | 10 | 599 | 822 |
| 358 | Fish | 1 | 10 | 841 | 912 |
| 369 | Biomass Energy | 1 | 9 | 3.7K | 4.5K |
| 369 | Environmental Economics | 2 | 9 | 566 | 1.1K |
| 369 | Quantum Chemistry | 1 | 9 | 1.8K | 1.9K |
| 369 | Combinatorial optimization | 4 | 9 | 448 | 1.0K |
| 369 | Autoantibodies | 1 | 9 | 1.1K | 1.7K |
| 369 | Autoimmunity | 1 | 9 | 1.4K | 2.1K |
| 369 | Library Science | 1 | 9 | 2.6K | 2.1K |
| 369 | Combinatorial analysis | 6 | 9 | 691 | 1.2K |
| 369 | Autoimmune diseases | 1 | 9 | 1.3K | 2.0K |
| 378 | Toxicology | 1 | 8 | 7.8K | 9.5K |
| 378 | International Relations | 1 | 8 | 2.6K | 2.1K |
| 378 | Health Services Research | 1 | 8 | 3.7K | 4.5K |
| 378 | Financial Engineering | 1 | 8 | 515 | 699 |
| 378 | Forecasting | 1 | 8 | 965 | 1.2K |
| 378 | Integrated Circuits | 5 | 8 | 700 | 1.5K |
| 378 | Health insurance | 1 | 8 | 1.1K | 1.5K |
| 378 | Mechanics | 4 | 8 | 1.3K | 2.6K |
| 378 | Luminescence | 3 | 8 | 822 | 1.9K |
| 378 | bioluminescence | 3 | 8 | 421 | 1.0K |
| 378 | Molecular structure | 3 | 8 | 2.6K | 4.6K |
| 378 | Psychophysiology | 1 | 8 | 4.6K | 5.8K |
| 390 | Education | 2 | 7 | 5.8K | 7.1K |
| 390 | Economic Development | 1 | 7 | 2.9K | 3.5K |
| 390 | Telecommunications | 1 | 7 | 1.5K | 1.6K |
| 390 | Microbial Genetics | 1 | 7 | 763 | 1.1K |
| 390 | Labor Economics | 1 | 7 | 746 | 913 |
| 390 | air quality management | 1 | 7 | 854 | 1.5K |
| 390 | Microbial Biotechnology | 1 | 7 | 2.1K | 2.9K |
| 390 | Regionalism | 1 | 7 | 469 | 644 |
| 390 | Sensor Networks | 1 | 7 | 305 | 462 |
| 390 | Electrochemical Analysis | 1 | 7 | 1.9K | 2.5K |
| 390 | Knowledge management | 4 | 7 | 249 | 1.1K |
| 390 | Fiber Optics | 1 | 7 | 1.5K | 1.9K |
| 390 | Microfluidics | 1 | 7 | 594 | 941 |
| 390 | Entropy | 1 | 7 | 2.4K | 2.7K |
| 390 | Sports | 2 | 7 | 3.4K | 4.2K |
| 390 | Developmental Immunology | 1 | 7 | 1.7K | 2.4K |
| 390 | economic conditions | 2 | 7 | 739 | 1.0K |
| 390 | supercritical fluids | 1 | 7 | 315 | 620 |
| 390 | Microstructure | 1 | 7 | 1.1K | 1.4K |
| 390 | Development | 1 | 7 | 1.4K | 1.9K |
| 390 | Vegetation | 1 | 7 | 279 | 385 |
| 390 | Developing countries | 1 | 7 | 3.8K | 4.8K |
| 412 | Horticulture | 1 | 6 | 1.6K | 2.0K |
| 412 | Costume Design | 1 | 6 | 111 | 192 |
| 412 | Alternative Medicine | 1 | 6 | 3.8K | 5.1K |
| 412 | Evidence-Based Medicine | 1 | 6 | 2.8K | 3.7K |
| 412 | complementary therapies | 1 | 6 | 4.2K | 5.4K |
| 412 | Investment analysis | 2 | 6 | 523 | 1.1K |
| 412 | Formal Languages | 3 | 6 | 209 | 599 |
| 412 | Computational Complexity | 3 | 6 | 1.0K | 2.1K |
| 412 | Fashion | 1 | 6 | 389 | 529 |
| 412 | Costume | 1 | 6 | 148 | 205 |
| 412 | Investments | 2 | 6 | 622 | 1.0K |
| 423 | Materials Engineering | 1 | 5 | 1.5K | 2.0K |
| 423 | Molecular Genetics | 1 | 5 | 3.5K | 4.9K |
| 423 | Municipal Engineering | 1 | 5 | 818 | 1.4K |
| 423 | emergency management | 1 | 5 | 2.0K | 2.7K |
| 423 | Electronic Packaging | 1 | 5 | 524 | 761 |
| 423 | preventive medicine | 2 | 5 | 2.0K | 3.8K |
| 423 | Measurement | 1 | 5 | 1.7K | 2.4K |
| 423 | Synchrotron Radiation | 1 | 5 | 874 | 1.2K |
| 423 | Optoelectronic devices | 2 | 5 | 1.5K | 2.1K |
| 423 | Physical fitness | 1 | 5 | 2.1K | 2.8K |
| 423 | Phylogeny | 1 | 5 | 1.6K | 2.4K |
| 434 | Structural Engineering | 1 | 4 | 2.3K | 2.9K |
| 434 | Epidemiology | 2 | 4 | 6.1K | 9.5K |
| 434 | Public Health | 2 | 4 | 9.0K | 13.2K |
| 434 | Computer Graphics | 2 | 4 | 1.9K | 3.5K |
| 434 | Energy Storage | 1 | 4 | 2.3K | 2.8K |
| 434 | Pharmaceutical Technology | 1 | 4 | 2.9K | 4.0K |
| 434 | Architectural Design | 1 | 4 | 894 | 1.2K |
| 434 | Diabetes mellitus | 1 | 4 | 4.1K | 5.8K |
| 434 | Diagnostic Imaging | 2 | 4 | 3.3K | 5.2K |
| 434 | Industrial Policy | 1 | 4 | 832 | 1.2K |
| 434 | fuel cells | 1 | 4 | 2.2K | 2.9K |
| 434 | Environmental risk assessment | 1 | 4 | 988 | 1.6K |
| 434 | Input-output analysis | 1 | 4 | 576 | 891 |
| 434 | Consumer education | 1 | 4 | 769 | 1.3K |
| 434 | innovation | 1 | 4 | 1.1K | 1.8K |
| 434 | catalytic activity | 1 | 4 | 1.2K | 1.7K |
| 434 | World Wide Web | 2 | 4 | 579 | 1.2K |
| 434 | Quantum theory | 2 | 4 | 1.2K | 2.0K |
| 434 | women | 1 | 4 | 1.7K | 2.1K |
| 434 | Philippines | 1 | 4 | 266 | 410 |
| 434 | Diabetes | 1 | 4 | 4.2K | 5.8K |
| 434 | pigments | 1 | 4 | 736 | 1.3K |
| 456 | Literature | 1 | 3 | 1.6K | 876 |
| 456 | Occupational Therapy | 1 | 3 | 2.4K | 3.0K |
| 456 | Game Theory | 1 | 3 | 925 | 1.3K |
| 456 | Occupational Health | 1 | 3 | 2.7K | 3.4K |
| 456 | Phytochemistry | 1 | 3 | 719 | 1.3K |
| 456 | Semantics | 1 | 3 | 624 | 829 |
| 456 | Industrial Safety | 1 | 3 | 2.1K | 2.9K |
| 456 | Microeconomics | 1 | 3 | 707 | 920 |
| 456 | Health Education | 1 | 3 | 3.9K | 5.4K |
| 456 | health behavior | 1 | 3 | 2.2K | 3.3K |
| 456 | industrial hygiene | 1 | 3 | 2.7K | 3.5K |
| 456 | Phytoremediation | 1 | 3 | 719 | 1.3K |
| 456 | Travel | 1 | 3 | 1.9K | 2.9K |
| 456 | Health | 1 | 3 | 5.0K | 7.0K |
| 456 | environmental remediation | 1 | 3 | 864 | 1.5K |
| 456 | Bioreactors | 1 | 3 | 719 | 1.3K |
| 456 | Magnetism | 1 | 3 | 427 | 528 |
| 456 | civilization | 1 | 3 | 2.4K | 1.8K |
| 456 | Health promotion | 1 | 3 | 3.4K | 4.9K |
| 456 | infection | 1 | 3 | 3.3K | 4.7K |
| 456 | Bacterial infections | 1 | 3 | 1.9K | 3.0K |
| 456 | Export Marketing | 1 | 3 | 470 | 853 |
| 456 | Liquid chromatography | 1 | 3 | 1.2K | 1.8K |
| 456 | Mollusks | 1 | 3 | 542 | 780 |
| 480 | Biostatistics | 1 | 2 | 454 | 725 |
| 480 | Automation | 1 | 2 | 3.4K | 4.7K |
| 480 | Population Genetics | 1 | 2 | 2.4K | 3.5K |
| 480 | consumer behavior | 1 | 2 | 1.0K | 1.7K |
| 480 | Quantum Optics | 1 | 2 | 1.6K | 2.1K |
| 480 | Real Estate Investment | 2 | 2 | 242 | 561 |
| 480 | Social Change | 1 | 2 | 1.3K | 2.2K |
| 480 | Portfolio Management | 1 | 2 | 756 | 1.0K |
| 480 | Financial Institutions | 2 | 2 | 483 | 1.2K |
| 480 | natural products | 2 | 2 | 2.7K | 4.5K |
| 480 | Alloys | 1 | 2 | 745 | 1.1K |
| 480 | Atomic spectroscopy | 1 | 2 | 1.7K | 2.4K |
| 480 | Spectrum analysis | 1 | 2 | 6.2K | 8.1K |
| 480 | Population | 1 | 2 | 2.0K | 2.9K |
| 480 | Interactive multimedia | 1 | 2 | 764 | 1.1K |
| 480 | biological agents | 2 | 2 | 1.0K | 1.9K |
| 480 | Laser Spectroscopy | 1 | 2 | 1.5K | 2.1K |
| 480 | Money | 1 | 2 | 372 | 773 |
| 480 | real estate | 1 | 2 | 136 | 262 |
| 480 | phototherapy | 1 | 2 | 559 | 939 |
| 500 | Computer Engineering | 1 | 1 | 1.4K | 2.2K |
| 500 | Algebra | 2 | 1 | 1.7K | 2.6K |
| 500 | Computer Architecture | 1 | 1 | 753 | 1.2K |
| 500 | Language Acquisition | 1 | 1 | 984 | 1.5K |
| 500 | Combustion | 1 | 1 | 1.5K | 2.4K |
| 500 | Transportation | 1 | 1 | 2.5K | 3.7K |
| 500 | Bifurcation Theory | 1 | 1 | 1.1K | 1.7K |
| 500 | Nonlinear Dynamics | 1 | 1 | 3.5K | 4.9K |
| 500 | Bilingualism | 1 | 1 | 507 | 894 |
| 500 | Microprocessors | 1 | 1 | 617 | 1.2K |
| 500 | Data Warehousing | 1 | 1 | 107 | 296 |
| 500 | Semiotics | 1 | 1 | 778 | 928 |
| 500 | clay | 1 | 1 | 998 | 1.7K |
| 500 | Communication | 1 | 1 | 3.6K | 5.2K |
| 500 | Criticism | 1 | 1 | 538 | 621 |
| 500 | clay minerals | 1 | 1 | 622 | 1.1K |
| 500 | Imaging systems | 1 | 1 | 1.4K | 2.1K |
| 500 | High performance computing | 1 | 1 | 97 | 266 |
| 500 | health services | 1 | 1 | 2.4K | 4.0K |
| 500 | Navier-Stokes equations | 1 | 1 | 330 | 490 |
| 500 | population geography | 1 | 1 | 694 | 1.1K |
| 521 | Law | 1 | 0 | 3.0K | 3.8K |
| 521 | Civil Engineering | 1 | 0 | 3.2K | 4.5K |
| 521 | Nuclear Engineering | 1 | 0 | 2.5K | 3.5K |
| 521 | Applied Mathematics | 1 | 0 | 2.0K | 2.8K |
| 521 | Robotics | 1 | 0 | 2.9K | 4.3K |
| 521 | Urban Economics | 1 | 0 | 442 | 855 |
| 521 | Graph Theory | 1 | 0 | 1.4K | 1.9K |
| 521 | Discrete Mathematics | 1 | 0 | 726 | 1.1K |
| 521 | Radiation | 1 | 0 | 3.5K | 5.2K |
| 521 | Animal ecology | 1 | 0 | 2.2K | 3.3K |
| 521 | Romanticism | 1 | 0 | 334 | 447 |
| 521 | Interferons | 1 | 0 | 719 | 1.4K |
| 521 | Ubiquitous computing | 1 | 0 | 263 | 533 |
| 521 | Parasitology | 1 | 0 | 4.2K | 6.0K |
| 521 | elasticity | 1 | 0 | 449 | 800 |
| 521 | Parasitic Diseases | 1 | 0 | 3.9K | 5.7K |
| 521 | Semigroups | 1 | 0 | 569 | 923 |
| 521 | graph | 1 | 0 | 726 | 1.1K |
| 521 | Renaissance | 1 | 0 | 1.0K | 688 |
| 521 | cytokines | 1 | 0 | 2.5K | 3.8K |
| 521 | disease vectors | 1 | 0 | 2.0K | 3.3K |
| 521 | fishing industry | 1 | 0 | 444 | 884 |
| 521 | Japan | 1 | 0 | 4.0K | 5.7K |
| 521 | Parasites | 1 | 0 | 2.9K | 4.3K |
| 521 | Jurisprudence | 1 | 0 | 2.1K | 3.4K |
| 521 | Cytokine | 1 | 0 | 922 | 1.7K |
