| 1 | Chemistry | 6,797 | 630.1K | 10 | 6 |
| 2 | Physics | 7,644 | 550.6K | 20 | 33 |
| 3 | Biology | 3,077 | 351.9K | 69 | 51 |
| 4 | Materials | 6,460 | 344.7K | 3 | 2 |
| 5 | Nanotechnology | 4,319 | 295.5K | 2 | 5 |
| 6 | Science | 4,044 | 276.5K | 42 | 83 |
| 7 | Chemical Engineering | 3,836 | 192.9K | 2 | 1 |
| 8 | Materials Science | 3,277 | 181.4K | 1 | 3 |
| 9 | Catalysis | 2,042 | 158.9K | 2 | 2 |
| 10 | Pollution | 2,270 | 149.3K | 3 | 1 |
| 11 | Biocompatible Materials | 1,951 | 129.5K | 5 | 6 |
| 12 | Environmental Health | 1,920 | 122.0K | 4 | 4 |
| 13 | nanoscience | 1,548 | 119.7K | 2 | 2 |
| 14 | Biotechnology | 1,924 | 117.2K | 9 | 10 |
| 15 | Natural history | 362 | 115.7K | 137 | 101 |
| 16 | Molecular Biology | 1,887 | 112.6K | 84 | 111 |
| 17 | Environmental Engineering | 1,684 | 108.9K | 1 | 1 |
| 18 | energy conservation | 1,531 | 108.1K | 1 | 1 |
| 19 | Nanostructured Materials | 1,643 | 103.5K | 1 | 2 |
| 20 | Cytology | 1,057 | 101.9K | 57 | 63 |
| 21 | Biochemical Engineering | 1,816 | 99.5K | 1 | 5 |
| 22 | Nuclear Physics | 3,220 | 98.3K | 26 | 47 |
| 23 | Optical materials | 1,202 | 96.4K | 1 | 1 |
| 24 | Environment | 1,294 | 87.4K | 13 | 17 |
| 25 | Ecology | 1,605 | 82.7K | 43 | 86 |
| 26 | Renewable Energy Sources | 1,043 | 81.1K | 1 | 2 |
| 27 | Bioengineering | 1,198 | 75.6K | 11 | 16 |
| 28 | Biomedical Engineering | 1,493 | 72.4K | 4 | 5 |
| 29 | Signal Processing | 1,757 | 69.8K | 3 | 5 |
| 30 | Biochemistry | 1,921 | 68.5K | 169 | 217 |
| 31 | Cell Biology | 551 | 67.5K | 130 | 92 |
| 32 | sanitation | 751 | 67.5K | 3 | 2 |
| 33 | China | 3,034 | 65.3K | 3 | 2 |
| 34 | Analytical Chemistry | 1,480 | 63.8K | 5 | 3 |
| 35 | environmental pollution | 1,286 | 63.1K | 4 | 4 |
| 36 | Energy Policy | 1,187 | 61.5K | 1 | 1 |
| 37 | Artificial Intelligence | 1,286 | 60.5K | 1 | 10 |
| 38 | Solid State Physics | 1,605 | 56.2K | 33 | 49 |
| 39 | Water | 883 | 56.2K | 2 | 3 |
| 40 | Telecommunication | 1,132 | 56.1K | 3 | 9 |
| 41 | Condensed Matter | 1,572 | 55.3K | 28 | 52 |
| 42 | Geophysics | 894 | 55.3K | 73 | 43 |
| 43 | Optics | 3,460 | 55.1K | 4 | 17 |
| 44 | Energy Conversion | 363 | 54.8K | 2 | 2 |
| 45 | Astrophysics | 1,167 | 53.2K | 128 | 206 |
| 46 | Polymers | 1,404 | 52.4K | 30 | 34 |
| 47 | Colloids | 1,259 | 51.7K | 5 | 8 |
| 48 | Wireless Communication Systems | 1,273 | 49.4K | 5 | 5 |
| 49 | Image Processing | 1,185 | 49.2K | 1 | 5 |
| 50 | Technology | 2,019 | 48.1K | 7 | 6 |
| 51 | Environmental Chemistry | 302 | 47.3K | 6 | 2 |
| 52 | Virology | 272 | 47.1K | 160 | 84 |
| 53 | Environmental monitoring | 768 | 47.1K | 4 | 3 |
| 54 | Composite Materials | 914 | 47.0K | 5 | 7 |
| 55 | Spectrum analysis | 1,107 | 46.6K | 63 | 126 |
| 56 | Surface Chemistry | 1,171 | 45.9K | 6 | 6 |
| 57 | Microbiology | 784 | 44.9K | 182 | 193 |
| 58 | Atmospheric Physics | 489 | 44.8K | 26 | 12 |
| 59 | miniaturization | 653 | 44.1K | 5 | 15 |
| 60 | Biomass Energy | 563 | 44.0K | 2 | 2 |
| 61 | Statistical physics | 1,186 | 43.3K | 24 | 29 |
| 62 | Water pollution | 684 | 42.9K | 6 | 7 |
| 63 | Medicine | 1,195 | 42.7K | 243 | 327 |
| 64 | Environmental Policy | 674 | 42.3K | 4 | 8 |
| 65 | Electrical Engineering | 1,183 | 42.1K | 5 | 1 |
| 66 | Electrochemistry | 1,189 | 41.9K | 24 | 9 |
| 67 | Research | 1,595 | 41.7K | 105 | 183 |
| 68 | fuel cells | 386 | 38.9K | 2 | 1 |
| 69 | Atmospheric Chemistry | 308 | 38.9K | 27 | 9 |
| 70 | Microelectronics | 585 | 38.7K | 6 | 12 |
| 71 | Automation | 811 | 36.5K | 5 | 20 |
| 72 | Electronics | 1,155 | 36.2K | 16 | 22 |
| 73 | environmental protection | 614 | 34.9K | 4 | 1 |
| 74 | Nanoparticles | 629 | 34.9K | 1 | 2 |
| 75 | Carbon | 477 | 34.7K | 1 | 1 |
| 76 | Structural Engineering | 904 | 33.1K | 5 | 3 |
| 77 | polymerization | 948 | 32.8K | 37 | 44 |
| 78 | Intelligent Transportation Systems | 713 | 31.5K | 1 | 1 |
| 79 | Computer Graphics | 792 | 31.2K | 2 | 7 |
| 80 | mass transfer | 738 | 29.3K | 4 | 4 |
| 81 | Metallurgy | 640 | 29.2K | 20 | 24 |
| 82 | Biophysics | 852 | 29.1K | 127 | 131 |
| 83 | Astronomy | 1,000 | 28.3K | 126 | 246 |
| 84 | Ceramics | 750 | 28.2K | 2 | 4 |
| 85 | Nanostructures | 295 | 26.8K | 6 | 13 |
| 86 | Photonics | 846 | 26.8K | 3 | 17 |
| 87 | Metals | 524 | 25.8K | 19 | 28 |
| 88 | Bioinformatics | 340 | 25.8K | 9 | 22 |
| 89 | Organic Chemistry | 359 | 25.7K | 48 | 11 |
| 90 | Power Electronics | 520 | 25.6K | 10 | 9 |
| 91 | nucleic acids | 179 | 25.5K | 69 | 44 |
| 92 | Engineering | 829 | 25.1K | 9 | 13 |
| 93 | Genetics | 342 | 25.0K | 167 | 160 |
| 94 | Environmental Management | 562 | 24.5K | 3 | 4 |
| 95 | Computational Biology | 297 | 24.2K | 39 | 36 |
| 96 | Quantum Gravity | 623 | 23.8K | 71 | 108 |
| 97 | Green Chemistry | 404 | 23.4K | 3 | 2 |
| 98 | Physical Chemistry | 194 | 23.2K | 91 | 23 |
| 99 | Earthquake Engineering | 667 | 23.2K | 5 | 6 |
| 100 | coal | 619 | 23.0K | 4 | 4 |
| 101 | pottery | 616 | 23.0K | 2 | 7 |
| 102 | Glass | 614 | 23.0K | 2 | 7 |
| 103 | computer networks | 841 | 21.9K | 2 | 6 |
| 104 | Mechanical Engineering | 921 | 21.9K | 3 | 2 |
| 105 | Ocean Engineering | 704 | 21.8K | 14 | 8 |
| 106 | Mathematics | 1,763 | 21.5K | 28 | 62 |
| 107 | Earth Sciences | 422 | 20.9K | 32 | 51 |
| 108 | energy resources | 254 | 20.9K | 3 | 3 |
| 109 | Radio | 375 | 20.8K | 21 | 22 |
| 110 | Bioorganic chemistry | 226 | 20.3K | 67 | 14 |
| 111 | Building Materials | 450 | 20.1K | 15 | 15 |
| 112 | Heat Exchangers | 585 | 19.4K | 3 | 3 |
| 113 | Immunity | 184 | 18.9K | 99 | 115 |
| 114 | actuators | 484 | 18.8K | 3 | 5 |
| 114 | transducers | 484 | 18.8K | 3 | 5 |
| 116 | genome | 164 | 18.7K | 42 | 41 |
| 117 | Transportation | 350 | 18.4K | 34 | 19 |
| 118 | Combustion | 811 | 18.1K | 1 | 12 |
| 119 | Hydrology | 386 | 17.5K | 32 | 39 |
| 120 | Structural dynamics | 334 | 17.2K | 6 | 6 |
| 121 | Information Technology | 606 | 17.1K | 1 | 2 |
| 122 | Sustainable Engineering | 305 | 16.6K | 3 | 2 |
| 123 | Sustainable Development | 241 | 16.6K | 3 | 7 |
| 124 | Medical Laboratory Science | 274 | 16.5K | 20 | 25 |
| 125 | Environmental Law | 183 | 16.5K | 6 | 3 |
| 126 | Membranes | 292 | 16.4K | 23 | 26 |
| 127 | Tribology | 629 | 16.3K | 1 | 4 |
| 128 | vibration | 342 | 16.3K | 6 | 4 |
| 129 | Radio waves | 270 | 15.2K | 13 | 14 |
| 130 | Industrial Microbiology | 215 | 15.0K | 15 | 9 |
| 131 | Cybernetics | 301 | 14.9K | 6 | 12 |
| 132 | concrete | 196 | 14.9K | 10 | 23 |
| 133 | Industrial Engineering | 554 | 14.7K | 6 | 10 |
| 134 | Biosensors | 231 | 14.7K | 8 | 5 |
| 135 | internet | 401 | 14.6K | 5 | 5 |
| 136 | Internet of Things | 396 | 14.3K | 5 | 5 |
| 137 | Magnetic Materials | 386 | 14.3K | 5 | 3 |
| 138 | Neural circuitry | 482 | 14.3K | 7 | 12 |
| 139 | Manufacturing Processes | 543 | 14.2K | 11 | 25 |
| 140 | lasers | 685 | 14.2K | 4 | 11 |
| 141 | management | 338 | 14.1K | 67 | 187 |
| 142 | Ceramic materials | 350 | 13.7K | 3 | 2 |
| 143 | Control Theory | 433 | 13.6K | 9 | 13 |
| 144 | Economics | 402 | 13.3K | 164 | 150 |
| 145 | Energy Consumption | 211 | 13.0K | 1 | 1 |
| 146 | Nuclear Engineering | 990 | 12.9K | 10 | 9 |
| 147 | Plant cells | 108 | 12.9K | 99 | 99 |
| 148 | Immunology | 219 | 12.9K | 250 | 244 |
| 149 | Data Mining | 246 | 12.7K | 1 | 24 |
| 150 | Multimedia Systems | 393 | 12.6K | 5 | 4 |
| 151 | Economic Development | 122 | 12.5K | 57 | 25 |
| 152 | Molecular structure | 199 | 12.5K | 39 | 49 |
| 153 | Bioelectronics | 188 | 12.3K | 8 | 5 |
| 154 | Neurology | 293 | 12.3K | 461 | 490 |
| 155 | proteins | 346 | 12.2K | 13 | 32 |
| 156 | plant molecular biology | 160 | 12.1K | 65 | 87 |
| 157 | Systems Engineering | 423 | 12.1K | 7 | 10 |
| 158 | Computer Science | 586 | 11.8K | 1 | 2 |
| 159 | Recycling | 257 | 11.8K | 1 | 2 |
| 160 | energy development | 173 | 11.6K | 2 | 11 |
| 161 | water supply | 161 | 11.5K | 28 | 21 |
| 162 | Mobile Computing | 340 | 11.5K | 1 | 2 |
| 163 | sustainability | 133 | 11.4K | 1 | 2 |
| 164 | Computer Vision | 229 | 11.2K | 6 | 24 |
| 165 | biocatalysis | 28 | 11.2K | 3 | 1 |
| 165 | Homogeneous catalysis | 28 | 11.2K | 3 | 1 |
| 165 | Heterogeneous catalysis | 28 | 11.2K | 3 | 1 |
| 168 | Information Science | 277 | 11.1K | 16 | 27 |
| 169 | Botany | 213 | 11.1K | 362 | 314 |
| 170 | Medical Physics | 274 | 11.0K | 55 | 50 |
| 171 | Nuclear Energy | 781 | 10.9K | 5 | 5 |
| 172 | Soil Mechanics | 337 | 10.9K | 12 | 19 |
| 173 | Plants | 180 | 10.9K | 71 | 104 |
| 174 | transport vesicles | 11 | 10.7K | 44 | 75 |
| 175 | Genomics | 227 | 10.5K | 106 | 98 |
| 176 | Economic History | 349 | 10.4K | 41 | 42 |
| 177 | Communication | 154 | 10.4K | 96 | 51 |
| 178 | Fracture mechanics | 456 | 10.4K | 4 | 14 |
| 179 | Operations Research | 250 | 10.3K | 47 | 53 |
| 180 | Cement | 115 | 10.3K | 17 | 24 |
| 181 | Mathematical Physics | 541 | 10.1K | 38 | 120 |
| 182 | Pharmaceutical Chemistry | 275 | 10.1K | 164 | 178 |
| 183 | Robotics | 332 | 10.1K | 12 | 22 |
| 184 | Developmental Biology | 154 | 10.0K | 146 | 151 |
| 185 | Engineering Geology | 311 | 10.0K | 17 | 26 |
| 186 | Meteorology | 256 | 10.0K | 110 | 149 |
| 187 | Electromagnetism | 295 | 9.9K | 6 | 3 |
| 188 | Pharmacology | 305 | 9.9K | 411 | 403 |
| 189 | Rock Mechanics | 286 | 9.6K | 13 | 20 |
| 190 | Nervous system | 158 | 9.6K | 158 | 153 |
| 191 | Plant physiology | 157 | 9.6K | 111 | 106 |
| 192 | Energy Storage | 161 | 9.5K | 12 | 8 |
| 193 | multimedia | 237 | 9.4K | 3 | 2 |
| 193 | Interactive multimedia | 237 | 9.4K | 3 | 2 |
| 195 | data collection | 129 | 9.3K | 4 | 20 |
| 196 | Toxicology | 230 | 9.2K | 290 | 259 |
| 197 | Hazardous waste | 151 | 9.2K | 3 | 2 |
| 198 | Production Engineering | 419 | 9.1K | 16 | 16 |
| 199 | Climatology | 234 | 8.7K | 56 | 103 |
| 200 | radioactive waste | 123 | 8.6K | 3 | 2 |
| 200 | industrial waste | 123 | 8.6K | 3 | 2 |
| 202 | Database Management | 219 | 8.4K | 7 | 19 |
| 203 | Developing countries | 179 | 8.0K | 62 | 45 |
| 204 | United States | 228 | 7.9K | 348 | 331 |
| 205 | Cell metabolism | 44 | 7.6K | 28 | 45 |
| 206 | Cancer | 167 | 7.5K | 292 | 329 |
| 207 | Biodiversity conservation | 64 | 7.5K | 215 | 166 |
| 208 | Climate change | 60 | 7.5K | 100 | 123 |
| 209 | Metabolic diseases | 46 | 7.4K | 461 | 235 |
| 209 | Ventilation | 169 | 7.4K | 3 | 4 |
| 211 | Microbial Ecology | 102 | 7.4K | 214 | 221 |
| 212 | System analysis | 319 | 7.3K | 8 | 41 |
| 213 | Friction | 168 | 7.3K | 1 | 1 |
| 214 | Homeostasis | 35 | 7.2K | 35 | 48 |
| 215 | Light | 42 | 7.2K | 119 | 55 |
| 216 | Parallel Processing | 236 | 7.2K | 1 | 1 |
| 217 | Databases | 175 | 7.2K | 5 | 7 |
| 218 | finance | 238 | 7.1K | 26 | 71 |
| 219 | Information Theory | 260 | 7.1K | 26 | 61 |
| 220 | human behavior | 111 | 7.1K | 230 | 224 |
| 221 | Allergy | 57 | 7.1K | 146 | 125 |
| 222 | Clinical Chemistry | 172 | 7.1K | 163 | 156 |
| 223 | Eutrophication | 49 | 7.0K | 117 | 132 |
| 224 | Quantum electronics | 323 | 7.0K | 13 | 37 |
| 225 | indoor air pollution | 133 | 6.9K | 2 | 3 |
| 225 | Sick building syndrome | 133 | 6.9K | 2 | 3 |
| 227 | Metabolism | 112 | 6.9K | 322 | 291 |
| 228 | Nonlinear Dynamics | 223 | 6.9K | 102 | 111 |
| 229 | Chemical industry | 393 | 6.9K | 15 | 7 |
| 230 | Production Management | 153 | 6.9K | 18 | 48 |
| 231 | Solid State Chemistry | 244 | 6.8K | 67 | 50 |
| 232 | Semiconductors | 370 | 6.7K | 8 | 10 |
| 233 | Civil Engineering | 214 | 6.7K | 31 | 10 |
| 234 | Genetic engineering | 116 | 6.6K | 105 | 80 |
| 235 | Proteomics | 77 | 6.6K | 35 | 15 |
| 236 | Boundary Value Problems | 176 | 6.6K | 6 | 6 |
| 237 | Antenna Arrays | 170 | 6.5K | 6 | 6 |
| 238 | Machine Learning | 75 | 6.5K | 2 | 7 |
| 239 | Host-parasite interactions | 74 | 6.4K | 95 | 97 |
| 240 | Water quality management | 266 | 6.4K | 9 | 13 |
| 241 | Fluid Dynamics | 198 | 6.4K | 10 | 15 |
| 242 | Combinatorial chemistry | 140 | 6.4K | 9 | 27 |
| 243 | biopolymers | 165 | 6.4K | 13 | 17 |
| 244 | Human genetics | 45 | 6.3K | 423 | 464 |
| 245 | visualization | 281 | 6.3K | 10 | 10 |
| 246 | optical pattern recognition | 67 | 6.3K | 1 | 1 |
| 247 | Industrial Safety | 166 | 6.3K | 7 | 12 |
| 248 | Solar Energy | 132 | 6.2K | 31 | 29 |
| 249 | Detectors | 320 | 6.2K | 7 | 7 |
| 250 | Behavior | 124 | 6.1K | 337 | 352 |
| 251 | Engineering Mathematics | 404 | 6.0K | 3 | 30 |
| 252 | Process Control | 122 | 6.0K | 5 | 16 |
| 253 | air quality management | 87 | 6.0K | 4 | 3 |
| 254 | gene mapping | 100 | 5.9K | 121 | 122 |
| 255 | Energy Harvesting | 46 | 5.9K | 36 | 15 |
| 256 | Human-Computer Interaction | 175 | 5.8K | 9 | 23 |
| 257 | Immunotherapy | 95 | 5.7K | 132 | 142 |
| 258 | Planets | 134 | 5.7K | 173 | 177 |
| 259 | Telecommunication Systems | 335 | 5.7K | 4 | 9 |
| 260 | Soft Condensed Matter | 153 | 5.7K | 25 | 22 |
| 261 | Environmental Toxicology | 144 | 5.7K | 69 | 104 |
| 262 | biological factors | 96 | 5.6K | 72 | 34 |
| 263 | economic policy | 205 | 5.6K | 39 | 48 |
| 264 | food technology | 163 | 5.5K | 132 | 130 |
| 265 | Computer-Aided Design | 195 | 5.5K | 3 | 15 |
| 266 | Neurons | 47 | 5.5K | 89 | 144 |
| 267 | city planning | 160 | 5.5K | 45 | 50 |
| 268 | Fluid Mechanics | 307 | 5.4K | 16 | 56 |
| 269 | rehabilitation | 89 | 5.3K | 196 | 119 |
| 270 | Decision making | 81 | 5.2K | 70 | 55 |
| 271 | Hydraulic Engineering | 203 | 5.2K | 21 | 32 |
| 272 | Tissue Engineering | 54 | 5.2K | 6 | 3 |
| 273 | Microwaves | 277 | 5.2K | 28 | 47 |
| 274 | Diagnostic Imaging | 207 | 5.1K | 50 | 94 |
| 275 | Measurement | 252 | 5.1K | 8 | 12 |
| 276 | nuclear power | 380 | 5.1K | 3 | 3 |
| 277 | Immune system | 48 | 5.1K | 125 | 148 |
| 278 | Plastics | 123 | 5.1K | 46 | 27 |
| 279 | Public Health | 188 | 5.0K | 448 | 520 |
| 280 | Econometrics | 107 | 4.9K | 77 | 97 |
| 281 | Oncology | 32 | 4.9K | 473 | 349 |
| 282 | Food | 148 | 4.9K | 164 | 210 |
| 283 | Mechatronics | 166 | 4.9K | 8 | 10 |
| 284 | soil microbiology | 78 | 4.9K | 123 | 144 |
| 285 | Optical Communications | 249 | 4.8K | 4 | 5 |
| 286 | machinery | 108 | 4.7K | 11 | 3 |
| 287 | Evolutionary Computation | 82 | 4.7K | 10 | 38 |
| 288 | Ultrasonics | 178 | 4.6K | 9 | 30 |
| 289 | Chemical analysis | 112 | 4.6K | 13 | 6 |
| 290 | electric vehicles | 157 | 4.6K | 3 | 4 |
| 291 | environmental exposure | 154 | 4.5K | 26 | 48 |
| 292 | Information Retrieval | 128 | 4.5K | 1 | 10 |
| 293 | Fuzzy Logic | 43 | 4.4K | 1 | 1 |
| 293 | Fuzzy Sets | 43 | 4.4K | 1 | 1 |
| 293 | Fuzzy algorithms | 43 | 4.4K | 1 | 1 |
| 296 | Asia | 226 | 4.4K | 44 | 48 |
| 297 | particles | 199 | 4.4K | 2 | 2 |
| 298 | Virulence | 62 | 4.4K | 124 | 129 |
| 299 | Plant Genetics | 68 | 4.3K | 28 | 35 |
| 300 | Radiography | 99 | 4.3K | 41 | 77 |
| 301 | Business | 64 | 4.3K | 276 | 263 |
| 302 | Environmental pollutants | 122 | 4.3K | 77 | 96 |
| 303 | Neurophysiology | 117 | 4.2K | 370 | 459 |
| 304 | Environmental Geology | 114 | 4.2K | 30 | 42 |
| 305 | Signal Transduction | 88 | 4.2K | 70 | 107 |
| 306 | Lightweight concrete | 58 | 4.2K | 18 | 30 |
| 307 | Building | 86 | 4.2K | 24 | 12 |
| 308 | Technological Innovations | 144 | 4.1K | 2 | 7 |
| 309 | Hydrodynamics | 115 | 4.0K | 11 | 15 |
| 310 | health planning | 166 | 4.0K | 37 | 48 |
| 311 | pollutants | 111 | 4.0K | 62 | 84 |
| 312 | Quantum theory | 138 | 4.0K | 21 | 21 |
| 313 | mathematical analysis | 349 | 3.9K | 12 | 67 |
| 314 | Social Change | 68 | 3.9K | 12 | 20 |
| 315 | global environmental change | 88 | 3.8K | 17 | 34 |
| 316 | Waste management | 155 | 3.8K | 15 | 19 |
| 317 | Chromosome mapping | 76 | 3.8K | 133 | 137 |
| 318 | plasticity | 70 | 3.8K | 7 | 19 |
| 319 | Bacteriology | 75 | 3.8K | 263 | 272 |
| 320 | Superconductors | 260 | 3.8K | 20 | 23 |
| 321 | Environmental Microbiology | 52 | 3.8K | 130 | 125 |
| 322 | Plant Ecology | 62 | 3.8K | 249 | 206 |
| 323 | viruses | 70 | 3.8K | 201 | 208 |
| 324 | Histology | 51 | 3.8K | 310 | 167 |
| 324 | Fiber Optics | 201 | 3.8K | 14 | 48 |
| 326 | Hematology | 58 | 3.7K | 514 | 376 |
| 327 | Surface-Active Agents | 82 | 3.6K | 21 | 24 |
| 327 | Surface properties | 82 | 3.6K | 22 | 26 |
| 329 | Stem cells | 79 | 3.6K | 128 | 127 |
| 330 | Fuzzy systems | 111 | 3.6K | 33 | 11 |
| 331 | Geomorphology | 92 | 3.6K | 71 | 114 |
| 332 | enzymes | 92 | 3.5K | 77 | 79 |
| 333 | solar cells | 57 | 3.5K | 45 | 28 |
| 334 | commerce | 96 | 3.5K | 39 | 129 |
| 335 | atmospheric models | 80 | 3.5K | 48 | 66 |
| 336 | solar power | 55 | 3.5K | 29 | 20 |
| 337 | Cell differentiation | 83 | 3.5K | 192 | 295 |
| 338 | Logistics | 84 | 3.4K | 6 | 10 |
| 339 | Tunneling | 103 | 3.4K | 10 | 18 |
| 339 | underground construction | 103 | 3.4K | 10 | 18 |
| 341 | Bioremediation | 60 | 3.4K | 5 | 2 |
| 342 | Marine Biology | 81 | 3.4K | 384 | 310 |
| 343 | Information Systems | 94 | 3.4K | 31 | 42 |
| 344 | Cell death | 81 | 3.4K | 86 | 180 |
| 345 | Soil Science | 93 | 3.3K | 157 | 163 |
| 346 | Psychology | 199 | 3.3K | 461 | 641 |
| 347 | Social Psychology | 97 | 3.3K | 278 | 349 |
| 348 | Urban Policy | 84 | 3.2K | 13 | 12 |
| 348 | Proteome | 70 | 3.2K | 67 | 89 |
| 350 | Solitons | 75 | 3.2K | 22 | 15 |
| 350 | Fractals | 75 | 3.2K | 22 | 15 |
| 350 | Chaos | 75 | 3.2K | 22 | 15 |
| 353 | environmental indicators | 104 | 3.2K | 15 | 30 |
| 354 | Genetic algorithms | 48 | 3.2K | 14 | 42 |
| 355 | Numerical Analysis | 238 | 3.2K | 21 | 101 |
| 356 | Statistics | 156 | 3.2K | 217 | 270 |
| 357 | extraterrestrial environment | 121 | 3.1K | 13 | 9 |
| 358 | Medical innovations | 68 | 3.1K | 47 | 136 |
| 359 | Chromatographic analysis | 152 | 3.1K | 39 | 46 |
| 360 | Mineral resources | 38 | 3.0K | 20 | 9 |
| 361 | Housing | 51 | 3.0K | 24 | 10 |
| 362 | impact | 67 | 3.0K | 11 | 11 |
| 363 | Electrophoresis | 104 | 3.0K | 58 | 73 |
| 364 | astronomical phenomena | 120 | 3.0K | 13 | 9 |
| 365 | Land use | 74 | 3.0K | 40 | 35 |
| 366 | Medical Microbiology | 59 | 3.0K | 350 | 342 |
| 367 | Ergonomics | 118 | 3.0K | 59 | 47 |
| 368 | Oncogenes | 52 | 3.0K | 164 | 209 |
| 369 | Cognitive Science | 92 | 3.0K | 80 | 178 |
| 370 | Medical genetics | 65 | 3.0K | 443 | 501 |
| 371 | Electrochemical Analysis | 87 | 2.9K | 103 | 98 |
| 372 | Social Sciences | 154 | 2.9K | 216 | 279 |
| 373 | Aerosols | 85 | 2.9K | 24 | 32 |
| 374 | Water Purification | 133 | 2.9K | 14 | 25 |
| 375 | Ultrasound | 127 | 2.9K | 15 | 31 |
| 376 | Nutrition | 109 | 2.9K | 484 | 617 |
| 377 | Agricultural Chemistry | 93 | 2.9K | 206 | 250 |
| 378 | Mining Engineering | 54 | 2.8K | 39 | 34 |
| 379 | Metallic Glasses | 60 | 2.8K | 20 | 14 |
| 380 | Population | 45 | 2.8K | 79 | 44 |
| 381 | micromechanics | 116 | 2.8K | 10 | 26 |
| 382 | Systems Biology | 106 | 2.8K | 54 | 78 |
| 383 | Differential Equations | 94 | 2.8K | 25 | 27 |
| 384 | Liver diseases | 52 | 2.7K | 245 | 307 |
| 385 | Psychiatry | 104 | 2.7K | 560 | 709 |
| 386 | atmosphere | 71 | 2.7K | 23 | 24 |
| 387 | Microorganisms | 44 | 2.7K | 85 | 140 |
| 388 | Biodegradation | 56 | 2.7K | 12 | 9 |
| 389 | Soil dynamics | 85 | 2.7K | 16 | 18 |
| 390 | community development | 41 | 2.7K | 31 | 8 |
| 391 | cell physiology | 59 | 2.6K | 194 | 254 |
| 392 | Urban Planning | 40 | 2.6K | 16 | 10 |
| 393 | Chromatography | 107 | 2.6K | 53 | 53 |
| 394 | Food additives | 43 | 2.6K | 118 | 100 |
| 395 | Industrial Ecology | 47 | 2.6K | 5 | 8 |
| 396 | software | 48 | 2.6K | 42 | 22 |
| 397 | Economic Thought | 20 | 2.6K | 47 | 23 |
| 397 | economic conditions | 23 | 2.6K | 99 | 29 |
| 399 | Photochemistry | 63 | 2.6K | 119 | 95 |
| 400 | hydrocolloids | 36 | 2.6K | 92 | 85 |
| 401 | Crystal growth | 94 | 2.6K | 23 | 40 |
| 402 | Public Administration | 83 | 2.5K | 117 | 115 |
| 403 | Genetic regulation | 52 | 2.5K | 108 | 171 |
| 404 | Systems Analysis | 102 | 2.5K | 14 | 28 |
| 405 | hazard mitigation | 94 | 2.4K | 9 | 16 |
| 406 | Geology | 71 | 2.4K | 612 | 547 |
| 407 | Bacterial infections | 20 | 2.4K | 165 | 120 |
| 408 | mycoses | 19 | 2.4K | 179 | 110 |
| 409 | Photobiology | 55 | 2.4K | 62 | 50 |
| 410 | soil management | 29 | 2.4K | 76 | 29 |
| 411 | natural disasters | 91 | 2.4K | 25 | 56 |
| 412 | Metallography | 93 | 2.4K | 15 | 19 |
| 413 | Calorimetry | 93 | 2.4K | 30 | 23 |
| 413 | Thermal analysis | 93 | 2.4K | 30 | 23 |
| 415 | Computational Fluid Dynamics | 106 | 2.4K | 3 | 6 |
| 416 | Sound | 107 | 2.4K | 31 | 74 |
| 417 | Quality Control | 76 | 2.3K | 67 | 83 |
| 418 | Developed countries | 36 | 2.3K | 7 | 5 |
| 419 | Pharmaceutical Technology | 69 | 2.3K | 108 | 129 |
| 420 | Multiphase Flow | 60 | 2.3K | 11 | 18 |
| 421 | Molecular Spectroscopy | 133 | 2.3K | 38 | 88 |
| 422 | Dynamics | 142 | 2.3K | 24 | 58 |
| 423 | Erosion | 82 | 2.3K | 1 | 1 |
| 424 | Marine Pollution | 39 | 2.3K | 161 | 100 |
| 425 | Microbial Biotechnology | 46 | 2.2K | 36 | 22 |
| 426 | Remote Sensing | 138 | 2.2K | 37 | 45 |
| 427 | Mass Spectrometry | 112 | 2.2K | 30 | 98 |
| 428 | Ferroelectricity | 165 | 2.2K | 17 | 37 |
| 429 | Education | 111 | 2.2K | 438 | 467 |
| 430 | Nanochemistry | 119 | 2.2K | 9 | 9 |
| 431 | Public Policy | 62 | 2.2K | 199 | 187 |
| 432 | biofuels | 30 | 2.2K | 19 | 18 |
| 433 | Biomechanics | 104 | 2.2K | 83 | 187 |
| 434 | protein | 101 | 2.2K | 49 | 152 |
| 435 | Mechanics | 75 | 2.1K | 69 | 69 |
| 436 | Epidemiology | 85 | 2.1K | 491 | 547 |
| 437 | DNA polymerases | 24 | 2.1K | 67 | 90 |
| 438 | Pharmacy | 49 | 2.1K | 352 | 254 |
| 439 | big data | 70 | 2.1K | 2 | 10 |
| 440 | Cytogenetics | 28 | 2.1K | 323 | 287 |
| 441 | Radiation | 169 | 2.1K | 40 | 164 |
| 442 | Soil biology | 34 | 2.0K | 186 | 194 |
| 443 | Quantum Communication | 42 | 2.0K | 3 | 5 |
| 444 | Green Technology | 101 | 2.0K | 1 | 3 |
| 445 | Gene expression regulation | 48 | 2.0K | 91 | 142 |
| 446 | Pharmacognosy | 44 | 2.0K | 310 | 256 |
| 447 | behavioral medicine | 24 | 2.0K | 335 | 230 |
| 448 | Smart Materials | 115 | 2.0K | 23 | 69 |
| 449 | catalytic activity | 51 | 1.9K | 32 | 47 |
| 450 | Atomic spectroscopy | 93 | 1.9K | 32 | 64 |
| 451 | Medicinal plants | 59 | 1.9K | 115 | 176 |
| 452 | International Finance | 93 | 1.9K | 76 | 162 |
| 453 | Functional Analysis | 112 | 1.9K | 33 | 73 |
| 454 | geological modeling | 48 | 1.9K | 18 | 40 |
| 455 | Geochemical Modeling | 47 | 1.9K | 17 | 39 |
| 456 | Organometallic chemistry | 85 | 1.9K | 118 | 116 |
| 457 | drug development | 22 | 1.9K | 193 | 184 |
| 458 | food handling | 35 | 1.9K | 80 | 47 |
| 459 | Geography | 61 | 1.8K | 324 | 347 |
| 459 | Microwave devices | 67 | 1.8K | 29 | 33 |
| 461 | Molecules | 98 | 1.8K | 122 | 219 |
| 462 | Developmental Genetics | 27 | 1.8K | 101 | 139 |
| 463 | Nanoelectronics | 93 | 1.8K | 32 | 15 |
| 464 | Geotechnical Engineering | 49 | 1.8K | 60 | 69 |
| 465 | Physical organic chemistry | 73 | 1.8K | 68 | 94 |
| 466 | Ecological Engineering | 41 | 1.8K | 16 | 23 |
| 467 | Greenhouse gases | 39 | 1.8K | 19 | 26 |
| 468 | Sonochemistry | 50 | 1.7K | 20 | 48 |
| 469 | Sociology | 102 | 1.7K | 339 | 477 |
| 470 | Entropy | 147 | 1.7K | 1 | 7 |
| 471 | Nanophotonics | 38 | 1.7K | 12 | 9 |
| 472 | Natural resources | 43 | 1.7K | 72 | 94 |
| 473 | Zeolites | 57 | 1.7K | 42 | 82 |
| 473 | Biomolecules | 27 | 1.7K | 31 | 44 |
| 475 | Japan | 122 | 1.7K | 94 | 113 |
| 476 | Physiology | 60 | 1.7K | 835 | 932 |
| 477 | Psychophysiology | 61 | 1.7K | 568 | 690 |
| 478 | Embryology | 47 | 1.7K | 315 | 365 |
| 479 | Analytical Biochemistry | 94 | 1.7K | 59 | 192 |
| 480 | Catalysts | 61 | 1.7K | 19 | 38 |
| 481 | Thermodynamics | 192 | 1.6K | 7 | 45 |
| 482 | biological evolution | 45 | 1.6K | 436 | 571 |
| 483 | Chemical processes | 68 | 1.6K | 13 | 14 |
| 484 | Cardiovascular system | 28 | 1.6K | 388 | 438 |
| 485 | Project Management | 19 | 1.6K | 53 | 45 |
| 486 | international trade | 19 | 1.6K | 125 | 63 |
| 487 | Molecular Pharmacology | 30 | 1.6K | 120 | 106 |
| 488 | world | 25 | 1.6K | 135 | 118 |
| 489 | Geochemistry | 66 | 1.6K | 390 | 524 |
| 490 | Structural design | 95 | 1.6K | 23 | 72 |
| 491 | Brain | 68 | 1.6K | 523 | 658 |
| 492 | Mathematical Economics | 6 | 1.6K | 183 | 65 |
| 493 | Synthetic biology | 49 | 1.5K | 15 | 15 |
| 494 | viral genetics | 16 | 1.5K | 90 | 124 |
| 495 | natural products | 51 | 1.5K | 216 | 211 |
| 496 | Geographic information systems | 84 | 1.5K | 27 | 41 |
| 497 | microwave communication systems | 60 | 1.5K | 20 | 31 |
| 498 | Photography | 1,011 | 1.5K | 6 | 58 |
| 499 | Biogeochemical cycles | 15 | 1.5K | 133 | 116 |
| 500 | Mental Disorders | 49 | 1.5K | 516 | 641 |
| 501 | cell interaction | 34 | 1.5K | 121 | 129 |
| 502 | Integrated Circuits | 195 | 1.5K | 1 | 3 |
| 503 | United Kingdom | 37 | 1.5K | 316 | 329 |
| 504 | Biodiversity | 42 | 1.5K | 405 | 452 |
| 505 | Computer Architecture | 46 | 1.5K | 30 | 16 |
| 506 | Swarm Intelligence | 35 | 1.5K | 10 | 22 |
| 507 | Radio frequency | 72 | 1.5K | 21 | 45 |
| 508 | Ultrasonic Imaging | 56 | 1.4K | 10 | 15 |
| 509 | Growth | 34 | 1.4K | 268 | 361 |
| 510 | Plant genetic engineering | 25 | 1.4K | 188 | 158 |
| 510 | Agriculture | 66 | 1.4K | 247 | 351 |
| 512 | Oceanography | 76 | 1.4K | 250 | 415 |
| 513 | Nonlinear systems | 66 | 1.4K | 19 | 31 |
| 514 | Risk Management | 47 | 1.4K | 29 | 54 |
| 515 | Adhesion | 45 | 1.4K | 22 | 18 |
| 515 | insurance | 46 | 1.4K | 28 | 27 |
| 515 | adhesives | 45 | 1.4K | 27 | 18 |
| 518 | Geobiology | 27 | 1.4K | 61 | 35 |
| 519 | Medical Technology | 39 | 1.4K | 201 | 191 |
| 520 | World Wide Web | 32 | 1.4K | 16 | 4 |
| 521 | Neurochemistry | 66 | 1.4K | 424 | 618 |
| 521 | Computational Complexity | 89 | 1.4K | 7 | 13 |
| 523 | Intelligent Control Systems | 68 | 1.4K | 37 | 30 |
| 524 | soil conservation | 40 | 1.3K | 33 | 29 |
| 525 | carbon monoxide | 19 | 1.3K | 17 | 9 |
| 526 | Actuarial Science | 40 | 1.3K | 23 | 21 |
| 527 | Iron | 91 | 1.3K | 17 | 24 |
| 528 | aerosol | 45 | 1.3K | 29 | 36 |
| 529 | language | 21 | 1.3K | 221 | 137 |
| 530 | Nuclear Fusion | 102 | 1.3K | 65 | 104 |
| 531 | Development | 27 | 1.3K | 142 | 141 |
| 532 | Lightweight Materials | 51 | 1.3K | 1 | 1 |
| 533 | Luminescence | 63 | 1.3K | 69 | 68 |
| 534 | Plasma chemistry | 52 | 1.3K | 14 | 27 |
| 534 | Landslides | 30 | 1.3K | 16 | 23 |
| 536 | analysis | 19 | 1.3K | 96 | 61 |
| 537 | Computational Intelligence | 68 | 1.3K | 7 | 27 |
| 537 | Simulation Methods | 79 | 1.3K | 6 | 23 |
| 537 | Mental illness | 36 | 1.3K | 404 | 530 |
| 540 | Hydrometeorology | 19 | 1.3K | 37 | 43 |
| 541 | Geometry | 148 | 1.2K | 19 | 64 |
| 542 | Microscopy | 59 | 1.2K | 108 | 156 |
| 543 | tillage | 14 | 1.2K | 116 | 68 |
| 544 | Ion Exchange | 47 | 1.2K | 2 | 3 |
| 544 | Solvent extraction | 47 | 1.2K | 2 | 3 |
| 546 | Emerging infectious diseases | 26 | 1.2K | 17 | 19 |
| 547 | Economic Assistance | 21 | 1.2K | 149 | 136 |
| 548 | water resources | 38 | 1.2K | 23 | 18 |
| 549 | Calculus of Variations | 65 | 1.2K | 10 | 17 |
| 550 | Molecular evolution | 30 | 1.2K | 335 | 384 |
| 551 | Nonlinear functional analysis | 70 | 1.2K | 48 | 76 |
| 552 | Diabetes | 29 | 1.2K | 540 | 551 |
| 553 | Plant diseases | 36 | 1.2K | 445 | 397 |
| 554 | Europe | 66 | 1.2K | 498 | 590 |
| 555 | Herbal medicine | 26 | 1.2K | 103 | 87 |
| 556 | clay | 29 | 1.2K | 97 | 112 |
| 557 | natural gas | 31 | 1.2K | 48 | 45 |
| 558 | Organometallic compounds | 37 | 1.1K | 242 | 239 |
| 559 | Cloud Computing | 44 | 1.1K | 4 | 13 |
| 559 | Semiconductor industry | 54 | 1.1K | 41 | 34 |
| 561 | Pathology | 38 | 1.1K | 496 | 556 |
| 562 | Hypertension | 26 | 1.1K | 434 | 525 |
| 563 | Superconductivity | 72 | 1.1K | 24 | 35 |
| 564 | Cognitive neuroscience | 51 | 1.1K | 154 | 328 |
| 565 | Anatomy | 33 | 1.1K | 500 | 470 |
| 566 | Nondestructive testing | 62 | 1.1K | 28 | 58 |
| 567 | Bioinorganic chemistry | 44 | 1.1K | 254 | 264 |
| 568 | infection | 33 | 1.1K | 349 | 393 |
| 569 | Flexible manufacturing systems | 40 | 1.1K | 12 | 21 |
| 570 | Speech Perception | 28 | 1.1K | 37 | 62 |
| 570 | auditory perception | 28 | 1.1K | 44 | 70 |
| 572 | Lipids | 30 | 1.1K | 246 | 329 |
| 573 | marketing | 41 | 1.1K | 407 | 576 |
| 574 | Navigation | 71 | 1.1K | 6 | 6 |
| 575 | Quality of life | 46 | 1.1K | 156 | 287 |
| 576 | Electromagnetic compatibility | 77 | 1.1K | 9 | 34 |
| 577 | Crystallography | 140 | 1.1K | 47 | 180 |
| 578 | pigments | 52 | 1.1K | 60 | 91 |
| 579 | Informatics | 46 | 1.1K | 46 | 115 |
| 580 | Vaccines | 41 | 1.0K | 297 | 341 |
| 581 | land degradation | 22 | 1.0K | 35 | 21 |
| 581 | degradation | 22 | 1.0K | 35 | 21 |
| 583 | Urban Economics | 14 | 1.0K | 92 | 70 |
| 584 | Humanities | 95 | 1.0K | 25 | 71 |
| 585 | drugs | 52 | 1.0K | 300 | 413 |
| 586 | Medical Oncology | 30 | 1.0K | 408 | 441 |
| 586 | Disease | 4 | 1.0K | 243 | 287 |
| 588 | Radiochemistry | 81 | 1.0K | 53 | 69 |
| 589 | Regional Planning | 34 | 1.0K | 349 | 324 |
| 590 | Finite Element Method | 28 | 1.0K | 18 | 6 |
| 591 | Endocrinology | 33 | 1.0K | 774 | 878 |
| 592 | Mortgages | 20 | 1.0K | 30 | 15 |
| 593 | Neurobiology | 32 | 1.0K | 463 | 607 |
| 594 | diseases | 3 | 1.0K | 289 | 292 |
| 595 | Marine Meteorology | 40 | 990 | 63 | 96 |
| 596 | Roads | 48 | 974 | 127 | 106 |
| 597 | infrared radiation | 80 | 968 | 14 | 15 |
| 598 | Structural optimization | 35 | 958 | 28 | 60 |
| 599 | supercritical fluids | 23 | 956 | 72 | 64 |
| 600 | Genes | 25 | 951 | 234 | 169 |
| 601 | Adaptive control systems | 66 | 949 | 15 | 22 |
| 602 | Biomass | 25 | 943 | 68 | 111 |
| 603 | Drug delivery systems | 18 | 942 | 515 | 451 |
| 603 | biological monitoring | 36 | 942 | 18 | 43 |
| 605 | Software Engineering | 49 | 939 | 112 | 222 |
| 606 | Visual Communication | 54 | 938 | 6 | 14 |
| 606 | Image enhancement | 54 | 938 | 6 | 14 |
| 608 | free radicals | 25 | 936 | 337 | 481 |
| 609 | Structure-activity relationship | 10 | 933 | 49 | 53 |
| 610 | Petroleum Engineering | 50 | 931 | 95 | 108 |
| 611 | Municipal Engineering | 22 | 930 | 14 | 7 |
| 612 | Agricultural Engineering | 26 | 920 | 60 | 50 |
| 613 | Plasma devices | 48 | 911 | 28 | 73 |
| 614 | Drying | 35 | 897 | 26 | 40 |
| 615 | Flexible electronics | 13 | 894 | 9 | 8 |
| 616 | Enzyme | 24 | 884 | 53 | 79 |
| 617 | Adolescent | 34 | 880 | 460 | 477 |
| 618 | Biogeochemistry | 23 | 878 | 325 | 400 |
| 619 | Wireless Communication | 43 | 877 | 9 | 10 |
| 620 | Graphene | 6 | 873 | 33 | 13 |
| 621 | personality | 28 | 867 | 440 | 554 |
| 622 | Obesity | 18 | 866 | 660 | 605 |
| 623 | Rural Development | 10 | 862 | 185 | 79 |
| 624 | Quantum Optics | 65 | 851 | 40 | 129 |
| 625 | structural stability | 32 | 849 | 25 | 67 |
| 626 | Diabetes mellitus | 23 | 841 | 576 | 638 |
| 626 | Therapeutics | 27 | 841 | 428 | 484 |
| 628 | Naval Architecture | 27 | 838 | 58 | 37 |
| 629 | Molecular Genetics | 22 | 834 | 570 | 625 |
| 630 | Regeneration | 41 | 832 | 2 | 2 |
| 631 | Imaging systems | 84 | 830 | 8 | 33 |
| 632 | Granular materials | 51 | 827 | 16 | 50 |
| 633 | Cryptography | 55 | 821 | 16 | 37 |
| 633 | Cell cycle | 23 | 821 | 34 | 40 |
| 633 | cell proliferation | 23 | 821 | 42 | 40 |
| 636 | Food Preservation | 46 | 816 | 41 | 46 |
| 637 | Algebra | 95 | 814 | 109 | 167 |
| 638 | Cerebral cortex | 33 | 813 | 195 | 313 |
| 639 | Capital market | 31 | 812 | 35 | 57 |
| 640 | radar | 60 | 807 | 4 | 8 |
| 640 | Sonar | 60 | 807 | 4 | 5 |
| 642 | bioclimatology | 30 | 805 | 90 | 124 |
| 643 | Aerospace Engineering | 53 | 799 | 12 | 6 |
| 644 | urban population | 8 | 785 | 89 | 67 |
| 645 | Biological Systems | 22 | 783 | 59 | 66 |
| 646 | innovation | 20 | 780 | 90 | 269 |
| 646 | Aging | 43 | 780 | 583 | 769 |
| 648 | Food preferences | 34 | 779 | 35 | 72 |
| 649 | Strategic planning | 23 | 773 | 106 | 142 |
| 650 | Global Health | 26 | 772 | 181 | 122 |
| 651 | Cognition | 50 | 770 | 360 | 602 |
| 652 | Tourism | 16 | 760 | 601 | 569 |
| 653 | Computer Engineering | 53 | 754 | 24 | 63 |
| 654 | Sensor Networks | 52 | 750 | 1 | 13 |
| 655 | Nuclear Chemistry | 65 | 748 | 78 | 143 |
| 656 | Critical Care | 12 | 745 | 578 | 596 |
| 656 | Critical Care Medicine | 12 | 745 | 576 | 595 |
| 658 | Laser Spectroscopy | 58 | 739 | 41 | 131 |
| 659 | Child | 27 | 737 | 661 | 611 |
| 660 | Health Policy | 31 | 731 | 525 | 546 |
| 661 | Nonlinear mechanics | 17 | 720 | 87 | 43 |
| 662 | Sustainable agriculture | 21 | 719 | 113 | 126 |
| 663 | ecosystem | 19 | 718 | 432 | 495 |
| 664 | Cognitive Radio Networks | 34 | 716 | 7 | 21 |
| 665 | Cosmology | 31 | 699 | 90 | 166 |
| 666 | Business Ethics | 18 | 692 | 281 | 494 |
| 667 | Animal Behavior | 17 | 690 | 736 | 721 |
| 667 | cytokines | 41 | 690 | 123 | 352 |
| 669 | Gerontology | 36 | 684 | 420 | 445 |
| 670 | Recombinant DNA | 33 | 682 | 261 | 395 |
| 670 | civil service | 20 | 682 | 67 | 83 |
| 672 | Leukemia | 13 | 681 | 403 | 399 |
| 673 | Traffic Engineering | 33 | 679 | 34 | 101 |
| 673 | synthesis | 45 | 679 | 71 | 74 |
| 675 | Transportation Engineering | 25 | 673 | 59 | 66 |
| 676 | Human Geography | 14 | 664 | 454 | 282 |
| 676 | Soil ecology | 16 | 664 | 222 | 238 |
| 678 | Raman spectroscopy | 29 | 662 | 90 | 124 |
| 679 | Microfluidics | 30 | 659 | 7 | 23 |
| 679 | Australia | 34 | 659 | 307 | 343 |
| 681 | Child Development | 27 | 658 | 547 | 675 |
| 682 | Sleep Disorders | 34 | 656 | 351 | 430 |
| 682 | Sleep | 34 | 656 | 350 | 428 |
| 684 | Microprocessors | 37 | 655 | 38 | 44 |
| 685 | peptides | 34 | 654 | 56 | 76 |
| 686 | wood | 29 | 653 | 84 | 81 |
| 687 | Genetic therapy | 14 | 650 | 389 | 352 |
| 688 | Ophthalmology | 34 | 644 | 467 | 596 |
| 689 | Diet | 22 | 643 | 586 | 805 |
| 690 | Liquid Crystals | 54 | 636 | 105 | 99 |
| 691 | Pharmacogenetics | 11 | 623 | 365 | 269 |
| 692 | Autoimmunity | 15 | 621 | 243 | 278 |
| 693 | probabilities | 64 | 620 | 184 | 271 |
| 693 | Breeding | 12 | 620 | 519 | 367 |
| 695 | Political Science | 30 | 616 | 512 | 433 |
| 696 | Materials Engineering | 46 | 610 | 24 | 46 |
| 697 | Social behavior | 22 | 608 | 345 | 420 |
| 698 | Demography | 8 | 607 | 328 | 178 |
| 699 | Porous materials | 39 | 605 | 46 | 82 |
| 700 | Geriatrics | 51 | 600 | 535 | 846 |
| 701 | Securities | 24 | 597 | 9 | 34 |
| 701 | Radioisotopes | 52 | 597 | 95 | 152 |
| 703 | Ethology | 8 | 594 | 850 | 691 |
| 703 | arthritis | 12 | 594 | 506 | 500 |
| 703 | traffic safety | 24 | 594 | 24 | 16 |
| 706 | Molecular cloning | 28 | 593 | 283 | 409 |
| 706 | Genetic recombination | 28 | 593 | 272 | 402 |
| 708 | Radio wave propagation | 43 | 586 | 71 | 99 |
| 709 | Forest Ecology | 19 | 582 | 324 | 376 |
| 710 | Alternative Medicine | 13 | 577 | 533 | 344 |
| 711 | Soviet Union | 44 | 574 | 34 | 23 |
| 712 | Drug design | 21 | 571 | 394 | 483 |
| 713 | cloning | 7 | 569 | 344 | 296 |
| 714 | Immunopharmacology | 37 | 564 | 132 | 270 |
| 715 | Artificial Organs | 15 | 559 | 206 | 114 |
| 715 | X-ray crystallography | 88 | 559 | 12 | 91 |
| 715 | Transplantation | 11 | 559 | 447 | 404 |
| 718 | particle accelerators | 32 | 550 | 13 | 17 |
| 719 | Thermochemistry | 19 | 546 | 132 | 111 |
| 720 | Neuropsychology | 37 | 545 | 579 | 848 |
| 721 | Urban Geography | 5 | 543 | 166 | 39 |
| 722 | particle beams | 30 | 541 | 13 | 17 |
| 723 | Quantum Computing | 19 | 538 | 28 | 41 |
| 724 | Astrodynamics | 20 | 536 | 3 | 2 |
| 724 | Financial management | 26 | 536 | 49 | 167 |
| 726 | Geomagnetism | 28 | 535 | 155 | 202 |
| 727 | consumer behavior | 12 | 534 | 166 | 195 |
| 728 | Seismology | 35 | 533 | 72 | 131 |
| 728 | Forest Management | 17 | 533 | 318 | 361 |
| 730 | Entrepreneurship | 19 | 531 | 221 | 502 |
| 731 | administrative agencies | 18 | 527 | 58 | 54 |
| 732 | Hematopoietic stem cell transplantation | 6 | 525 | 233 | 119 |
| 732 | Evidence-Based Medicine | 16 | 525 | 183 | 132 |
| 732 | Perception | 25 | 525 | 526 | 635 |
| 735 | Plant Biotechnology | 12 | 520 | 269 | 222 |
| 735 | Microfabrication | 37 | 520 | 22 | 57 |
| 737 | carcinogens | 9 | 519 | 440 | 358 |
| 738 | complementary therapies | 11 | 512 | 681 | 404 |
| 739 | Socioeconomic Factors | 24 | 507 | 133 | 198 |
| 740 | Plant tissue culture | 16 | 506 | 179 | 167 |
| 740 | Plant cell culture | 16 | 506 | 145 | 167 |
| 742 | Educational Technology | 25 | 502 | 371 | 492 |
| 743 | Neurotoxicology | 2 | 501 | 692 | 159 |
| 744 | Population Genetics | 17 | 499 | 442 | 541 |
| 744 | Magnetic Resonance Spectroscopy | 23 | 499 | 366 | 347 |
| 744 | organization | 11 | 499 | 360 | 432 |
| 744 | Memory | 15 | 499 | 683 | 658 |
| 748 | cryosphere | 11 | 497 | 160 | 151 |
| 749 | Nanobiotechnology | 20 | 496 | 60 | 165 |
| 750 | Psychoneuroimmunology | 4 | 495 | 457 | 282 |
| 750 | Neuroimmunology | 4 | 495 | 527 | 320 |
| 752 | Marine Biotechnology | 17 | 491 | 24 | 32 |
| 752 | optical devices | 25 | 491 | 41 | 59 |
| 754 | Eastern Europe | 36 | 484 | 69 | 62 |
| 755 | Investment analysis | 36 | 483 | 61 | 201 |
| 756 | Landscape Ecology | 13 | 478 | 129 | 173 |
| 757 | Coding Theory | 28 | 477 | 29 | 25 |
| 758 | Air Conditioning | 29 | 475 | 16 | 20 |
| 758 | East Asia | 45 | 475 | 31 | 49 |
| 760 | Food Microbiology | 23 | 473 | 293 | 586 |
| 760 | Wildlife conservation | 11 | 473 | 500 | 527 |
| 762 | bioluminescence | 23 | 471 | 24 | 14 |
| 762 | Speech | 21 | 471 | 258 | 372 |
| 764 | nuclear magnetic resonance | 23 | 470 | 328 | 336 |
| 765 | Autoantibodies | 13 | 466 | 177 | 208 |
| 765 | Autoimmune diseases | 13 | 466 | 198 | 232 |
| 767 | Infrared spectroscopy | 17 | 464 | 35 | 37 |
| 768 | Game Theory | 18 | 462 | 161 | 150 |
| 769 | Attention | 23 | 461 | 490 | 593 |
| 770 | Orthopedics | 33 | 457 | 359 | 518 |
| 770 | Conservation Biology | 15 | 457 | 397 | 454 |
| 770 | heating | 28 | 457 | 16 | 21 |
| 773 | Turbulence | 31 | 454 | 13 | 40 |
| 774 | RNA | 17 | 453 | 126 | 221 |
| 775 | Mineralogy | 18 | 450 | 531 | 543 |
| 776 | Stochastic Processes | 25 | 449 | 154 | 175 |
| 777 | Electronic Packaging | 15 | 448 | 52 | 46 |
| 778 | Computational Chemistry | 16 | 447 | 185 | 266 |
| 778 | Nuclear Medicine | 20 | 447 | 285 | 324 |
| 778 | Government policy | 7 | 447 | 73 | 49 |
| 781 | Learning | 16 | 445 | 525 | 543 |
| 782 | Psychopharmacology | 14 | 444 | 596 | 679 |
| 782 | Thin Films | 44 | 444 | 24 | 71 |
| 782 | venom | 10 | 444 | 293 | 194 |
| 782 | Toxins | 10 | 444 | 334 | 214 |
| 786 | Cheminformatics | 16 | 443 | 23 | 150 |
| 787 | Molecular ecology | 12 | 441 | 483 | 591 |
| 788 | Risk | 31 | 438 | 53 | 205 |
| 789 | Health Information Management | 5 | 437 | 169 | 229 |
| 790 | Industrial Policy | 12 | 434 | 161 | 166 |
| 791 | Health | 29 | 432 | 519 | 772 |
| 791 | DNS | 8 | 432 | 198 | 105 |
| 793 | emergency management | 25 | 427 | 65 | 190 |
| 794 | economic indicators | 28 | 426 | 6 | 9 |
| 795 | Enzyme inhibitors | 9 | 425 | 149 | 87 |
| 795 | construction | 6 | 425 | 102 | 57 |
| 797 | Plant hormones | 15 | 422 | 51 | 79 |
| 797 | vascular diseases | 12 | 422 | 287 | 340 |
| 797 | Respiration | 19 | 422 | 497 | 629 |
| 800 | Orthopedic Surgery | 30 | 421 | 118 | 235 |
| 801 | soil pollution | 25 | 420 | 35 | 85 |
| 802 | local government | 7 | 419 | 192 | 99 |
| 803 | Welfare Economics | 3 | 417 | 437 | 147 |
| 804 | Thrombosis | 13 | 415 | 430 | 432 |
| 805 | Evolution | 15 | 412 | 745 | 883 |
| 806 | Food Policy | 5 | 408 | 206 | 131 |
| 807 | Digital electronics | 39 | 407 | 3 | 7 |
| 808 | Emergency Medicine | 5 | 406 | 884 | 368 |
| 808 | Carcinogenesis | 6 | 406 | 566 | 431 |
| 810 | Infections | 14 | 405 | 393 | 555 |
| 811 | mutagens | 5 | 403 | 504 | 393 |
| 812 | Convergence | 4 | 401 | 35 | 21 |
| 813 | research and development | 16 | 399 | 39 | 126 |
| 814 | Phylogeny | 11 | 397 | 379 | 459 |
| 815 | Oxidation-reduction | 11 | 395 | 343 | 528 |
| 816 | radiative transfer | 27 | 394 | 133 | 182 |
| 817 | Adsorption | 13 | 389 | 30 | 36 |
| 817 | agricultural policy | 4 | 389 | 176 | 116 |
| 819 | Geodesy | 23 | 384 | 109 | 189 |
| 820 | Physical Geography | 17 | 382 | 100 | 150 |
| 821 | Rheumatology | 17 | 381 | 376 | 505 |
| 821 | Bones | 6 | 381 | 465 | 398 |
| 823 | Telecommunications | 22 | 379 | 88 | 122 |
| 824 | reasoning | 9 | 378 | 127 | 84 |
| 825 | Reproduction | 21 | 375 | 779 | 911 |
| 826 | organizational effectiveness | 14 | 374 | 82 | 103 |
| 827 | Human Resources | 14 | 373 | 106 | 212 |
| 828 | Product Design | 25 | 372 | 122 | 129 |
| 829 | Medical Imaging | 19 | 371 | 71 | 93 |
| 829 | Magnetic Resonance Imaging | 19 | 371 | 101 | 140 |
| 829 | Probability | 26 | 371 | 82 | 212 |
| 829 | Vocational guidance | 11 | 371 | 419 | 468 |
| 833 | mathematical concepts | 37 | 369 | 16 | 64 |
| 834 | public works | 6 | 368 | 78 | 30 |
| 835 | Psycholinguistics | 35 | 367 | 189 | 473 |
| 835 | nuclear astrophysics | 15 | 367 | 155 | 221 |
| 837 | Biogeography | 9 | 365 | 539 | 642 |
| 837 | Macroeconomics | 11 | 365 | 98 | 79 |
| 839 | Oxidative stress | 10 | 363 | 340 | 570 |
| 839 | Microbial Metabolism | 13 | 363 | 13 | 45 |
| 839 | Celestial Mechanics | 12 | 363 | 60 | 55 |
| 839 | X-rays | 52 | 363 | 20 | 87 |
| 843 | Crowdsourcing | 27 | 362 | 1 | 1 |
| 843 | Collective behavior | 27 | 362 | 1 | 7 |
| 843 | econometric models | 15 | 362 | 110 | 174 |
| 846 | Health Education | 17 | 358 | 672 | 677 |
| 847 | Leadership | 7 | 354 | 277 | 315 |
| 847 | Neuroplasticity | 19 | 354 | 11 | 55 |
| 849 | Flow cytometry | 12 | 350 | 102 | 122 |
| 850 | fusion reactors | 48 | 349 | 58 | 91 |
| 851 | Embedded Systems | 20 | 348 | 19 | 36 |
| 852 | Highway Engineering | 19 | 344 | 85 | 102 |
| 853 | Antibodies | 9 | 341 | 275 | 240 |
| 853 | Antigens | 9 | 341 | 374 | 321 |
| 855 | health services accessibility | 11 | 340 | 392 | 351 |
| 856 | Oral communication | 12 | 339 | 123 | 124 |
| 857 | Radiobiology | 19 | 337 | 421 | 566 |
| 857 | medical education | 13 | 337 | 714 | 651 |
| 859 | power plants | 1 | 336 | 18 | 11 |
| 860 | Architecture | 10 | 335 | 216 | 106 |
| 860 | Hormones | 10 | 335 | 624 | 620 |
| 862 | Corporate Social Responsibility | 5 | 333 | 153 | 148 |
| 862 | environmental auditing | 5 | 333 | 162 | 150 |
| 862 | Reading | 16 | 333 | 185 | 236 |
| 865 | Group decision making | 6 | 332 | 292 | 158 |
| 865 | Marine resources | 16 | 332 | 171 | 244 |
| 865 | ozone | 15 | 332 | 6 | 9 |
| 868 | Health Services Research | 22 | 331 | 436 | 597 |
| 868 | Bibliometrics | 10 | 331 | 39 | 51 |
| 870 | Social work | 22 | 330 | 448 | 470 |
| 870 | plant communities | 10 | 330 | 555 | 684 |
| 872 | Molecular Microbiology | 10 | 328 | 425 | 577 |
| 873 | pain | 6 | 325 | 796 | 642 |
| 874 | Birth control | 9 | 324 | 173 | 172 |
| 875 | Transgenic plants | 10 | 320 | 133 | 184 |
| 876 | International Education | 31 | 317 | 9 | 52 |
| 876 | Futures | 10 | 317 | 83 | 71 |
| 878 | Philosophy | 31 | 316 | 470 | 409 |
| 878 | Serology | 9 | 316 | 170 | 143 |
| 880 | Cross-Cultural Studies | 18 | 313 | 118 | 216 |
| 881 | International Relations | 11 | 312 | 477 | 354 |
| 882 | Entomology | 28 | 309 | 651 | 862 |
| 883 | Marine Geology | 13 | 308 | 207 | 245 |
| 883 | Statistical Mechanics | 16 | 308 | 228 | 233 |
| 883 | Schizophrenia | 10 | 308 | 468 | 550 |
| 886 | Pediatrics | 14 | 306 | 903 | 1108 |
| 886 | Visual Perception | 13 | 306 | 643 | 702 |
| 888 | healthcare disparities | 14 | 305 | 141 | 158 |
| 889 | preventive medicine | 15 | 304 | 407 | 589 |
| 890 | Audiology | 18 | 302 | 252 | 334 |
| 890 | Combinatorial optimization | 35 | 302 | 16 | 53 |
| 890 | poverty | 13 | 302 | 76 | 106 |
| 893 | Bioenergetics | 16 | 301 | 281 | 462 |
| 893 | Corporate governance | 18 | 301 | 60 | 231 |
| 893 | educational planning | 8 | 301 | 179 | 175 |
| 896 | Zoology | 15 | 294 | 1127 | 1027 |
| 897 | Capitalism | 9 | 292 | 36 | 28 |
| 898 | food contamination | 13 | 291 | 301 | 300 |
| 899 | Organizational Behavior | 5 | 289 | 423 | 432 |
| 899 | Molecular Imaging | 10 | 289 | 278 | 329 |
| 901 | Labor Economics | 4 | 287 | 426 | 228 |
| 902 | Industrial Design | 16 | 286 | 35 | 79 |
| 902 | Spine | 11 | 286 | 289 | 372 |
| 904 | Rheology | 13 | 284 | 211 | 236 |
| 905 | Optoelectronic devices | 30 | 283 | 113 | 211 |
| 906 | flavor | 3 | 282 | 174 | 74 |
| 907 | Structural health monitoring | 14 | 281 | 34 | 92 |
| 907 | irrigation | 19 | 281 | 61 | 90 |
| 909 | Quantitative Research | 5 | 279 | 155 | 135 |
| 909 | human development | 26 | 279 | 174 | 474 |
| 911 | Cellulose | 14 | 278 | 157 | 295 |
| 911 | planning | 12 | 278 | 233 | 211 |
| 913 | ports | 14 | 276 | 64 | 81 |
| 914 | Combinatorial analysis | 29 | 275 | 227 | 293 |
| 914 | Emotions | 8 | 275 | 329 | 403 |
| 916 | Sports | 66 | 273 | 334 | 938 |
| 916 | Health promotion | 13 | 273 | 419 | 461 |
| 918 | Production Planning | 4 | 270 | 212 | 144 |
| 918 | Reproductive health | 11 | 270 | 288 | 323 |
| 918 | Production Control | 4 | 270 | 208 | 144 |
| 921 | Organizational change | 13 | 266 | 214 | 326 |
| 921 | Inflammation | 8 | 266 | 584 | 712 |
| 921 | Semantic web | 5 | 266 | 50 | 42 |
| 924 | Ecohydrology | 12 | 264 | 69 | 115 |
| 924 | Algal blooms | 8 | 264 | 117 | 162 |
| 924 | Cyanobacteria | 8 | 264 | 117 | 162 |
| 924 | drug evaluation | 10 | 264 | 613 | 633 |
| 924 | microalgae | 8 | 264 | 117 | 162 |
| 929 | Hydrogeology | 8 | 263 | 333 | 282 |
| 929 | Number Theory | 61 | 263 | 41 | 129 |
| 929 | Diagnosis | 16 | 263 | 78 | 114 |
| 929 | Risk assessment | 25 | 263 | 39 | 158 |
| 933 | libraries | 7 | 262 | 301 | 160 |
| 933 | drug therapy | 14 | 262 | 820 | 983 |
| 935 | Neurogenetics | 3 | 261 | 254 | 101 |
| 935 | Politics | 10 | 261 | 247 | 220 |
| 935 | older people | 15 | 261 | 606 | 540 |
| 935 | government | 10 | 261 | 278 | 258 |
| 939 | technology transfer | 7 | 260 | 80 | 113 |
| 939 | Social policy | 11 | 260 | 457 | 404 |
| 941 | Human Capital | 6 | 259 | 118 | 94 |
| 941 | Autonomous robots | 6 | 259 | 91 | 93 |
| 943 | Primary health care | 17 | 258 | 551 | 716 |
| 943 | Plant breeding | 11 | 258 | 298 | 346 |
| 945 | Demographic research | 3 | 256 | 111 | 98 |
| 945 | Aquatic ecology | 11 | 256 | 400 | 421 |
| 947 | Microstructure | 25 | 255 | 114 | 226 |
| 948 | Venture Capital | 4 | 253 | 229 | 349 |
| 948 | Electromagnetic fields | 41 | 253 | 16 | 17 |
| 950 | Nanomanufacturing | 20 | 252 | 8 | 6 |
| 950 | Solar System | 10 | 252 | 386 | 416 |
| 952 | Sensory evaluation | 2 | 251 | 9 | 3 |
| 952 | drug resistance | 8 | 251 | 298 | 325 |
| 952 | population geography | 9 | 251 | 144 | 163 |
| 955 | Mass Media | 22 | 250 | 157 | 179 |
| 956 | Bioprinting | 11 | 249 | 4 | 15 |
| 957 | Database Security | 15 | 248 | 4 | 4 |
| 958 | Logic | 13 | 245 | 159 | 120 |
| 958 | Biopharmaceutics | 9 | 245 | 541 | 657 |
| 960 | Neuropsychiatry | 13 | 244 | 297 | 432 |
| 960 | Radiation Protection | 33 | 244 | 44 | 101 |
| 960 | Cytoskeleton | 4 | 244 | 215 | 142 |
| 960 | drainage | 17 | 244 | 48 | 58 |
| 964 | Technology Assessment | 14 | 243 | 32 | 240 |
| 965 | dietary supplements | 12 | 242 | 277 | 444 |
| 965 | Cosmochemistry | 11 | 242 | 408 | 534 |
| 967 | gene therapy | 12 | 241 | 423 | 625 |
| 968 | Radiology | 26 | 240 | 327 | 540 |
| 968 | Parasitic Diseases | 12 | 240 | 861 | 1030 |
| 970 | Cartography | 13 | 239 | 106 | 98 |
| 970 | Mountains | 20 | 239 | 37 | 63 |
| 970 | international cooperation | 24 | 239 | 97 | 298 |
| 973 | body temperature | 8 | 238 | 206 | 174 |
| 974 | Drug delivery devices | 4 | 237 | 166 | 169 |
| 975 | Emergency Medical Services | 13 | 236 | 191 | 206 |
| 975 | Cell communication | 11 | 236 | 170 | 390 |
| 977 | Biometrics | 26 | 235 | 284 | 505 |
| 978 | psychophysics | 14 | 234 | 104 | 127 |
| 979 | Sedimentology | 10 | 232 | 246 | 342 |
| 979 | cross-cultural comparison | 10 | 232 | 187 | 168 |
| 981 | Particle Physics | 6 | 231 | 123 | 184 |
| 981 | Coastal zone management | 12 | 231 | 224 | 332 |
| 981 | Elementary particles | 4 | 231 | 127 | 170 |
| 984 | Family | 7 | 227 | 584 | 461 |
| 985 | Environmentalism | 4 | 226 | 107 | 96 |
| 985 | Diagnostic microbiology | 5 | 226 | 720 | 873 |
| 987 | labor | 2 | 225 | 432 | 145 |
| 987 | working class | 2 | 225 | 213 | 134 |
| 989 | Bifurcation Theory | 10 | 224 | 63 | 84 |
| 989 | Ubiquitous computing | 25 | 224 | 2 | 25 |
| 989 | Oxidation | 17 | 224 | 27 | 64 |
| 989 | Climate | 12 | 224 | 177 | 323 |
| 993 | Mental Health | 6 | 222 | 1026 | 764 |
| 993 | Medical Anthropology | 14 | 222 | 465 | 859 |
| 995 | biomimicry | 9 | 221 | 62 | 92 |
| 995 | population trends | 2 | 221 | 93 | 87 |
| 997 | Contraception | 7 | 220 | 320 | 291 |
| 998 | Industrial Organization | 4 | 219 | 281 | 166 |
| 998 | Petroleum Geology | 2 | 219 | 582 | 308 |
| 998 | Cardiovascular diseases | 22 | 219 | 496 | 764 |