| 1 | Materials | 2,723 | 102.5K | 33 | 65 |
| 2 | Chemistry | 1,600 | 78.4K | 235 | 277 |
| 3 | Nanotechnology | 1,270 | 67.6K | 62 | 80 |
| 4 | Chemical Engineering | 1,288 | 53.4K | 30 | 39 |
| 5 | Physics | 1,490 | 46.7K | 289 | 507 |
| 6 | Materials Science | 1,083 | 44.4K | 62 | 86 |
| 7 | Biocompatible Materials | 646 | 35.4K | 69 | 78 |
| 8 | Biochemical Engineering | 720 | 33.5K | 28 | 58 |
| 9 | Energy Policy | 652 | 29.7K | 8 | 9 |
| 10 | Nanostructured Materials | 595 | 28.6K | 40 | 44 |
| 11 | Science | 607 | 27.5K | 463 | 619 |
| 12 | nanoscience | 384 | 27.3K | 62 | 62 |
| 13 | Biology | 436 | 27.1K | 566 | 619 |
| 14 | Environment | 577 | 26.2K | 88 | 205 |
| 15 | Catalysis | 507 | 25.3K | 119 | 115 |
| 16 | Renewable Energy Sources | 439 | 24.6K | 12 | 32 |
| 17 | Automation | 387 | 24.3K | 35 | 35 |
| 18 | Composite Materials | 494 | 21.3K | 37 | 51 |
| 19 | Molecular Biology | 523 | 19.4K | 462 | 538 |
| 20 | Metals | 434 | 19.1K | 30 | 50 |
| 21 | energy conservation | 361 | 18.9K | 17 | 24 |
| 22 | Pollution | 473 | 18.6K | 152 | 266 |
| 23 | Analytical Chemistry | 631 | 18.3K | 64 | 104 |
| 24 | Ecology | 471 | 18.3K | 301 | 420 |
| 25 | Optical materials | 359 | 18.2K | 62 | 75 |
| 26 | Metallurgy | 576 | 18.2K | 27 | 53 |
| 27 | Biochemistry | 678 | 18.0K | 554 | 680 |
| 28 | Surface Chemistry | 516 | 17.7K | 71 | 89 |
| 29 | Biotechnology | 456 | 17.4K | 177 | 295 |
| 30 | Engineering Geology | 472 | 17.4K | 7 | 8 |
| 31 | Mechanical Engineering | 722 | 17.3K | 7 | 4 |
| 32 | China | 770 | 17.1K | 28 | 16 |
| 33 | Colloids | 500 | 17.0K | 82 | 113 |
| 34 | actuators | 295 | 16.6K | 25 | 10 |
| 34 | transducers | 295 | 16.6K | 25 | 10 |
| 36 | Building Materials | 411 | 16.5K | 17 | 21 |
| 37 | Artificial Intelligence | 663 | 16.5K | 21 | 93 |
| 38 | Rock Mechanics | 411 | 16.2K | 5 | 8 |
| 39 | Power Electronics | 416 | 15.9K | 12 | 17 |
| 40 | Medicine | 561 | 15.5K | 521 | 635 |
| 41 | Electrochemistry | 527 | 15.0K | 113 | 95 |
| 42 | Soil Mechanics | 397 | 14.5K | 7 | 12 |
| 43 | Structural Engineering | 671 | 14.5K | 6 | 16 |
| 44 | Biomedical Engineering | 554 | 14.2K | 90 | 156 |
| 45 | Biomass Energy | 264 | 13.9K | 30 | 50 |
| 46 | Environmental Health | 417 | 13.5K | 162 | 261 |
| 47 | Electrical Engineering | 557 | 13.0K | 45 | 33 |
| 48 | coal | 290 | 12.6K | 17 | 17 |
| 49 | Water | 221 | 12.6K | 83 | 104 |
| 50 | Water pollution | 226 | 12.3K | 77 | 79 |
| 51 | Fracture mechanics | 411 | 12.1K | 6 | 9 |
| 52 | environmental pollution | 341 | 11.9K | 126 | 194 |
| 53 | Optics | 879 | 11.6K | 90 | 169 |
| 54 | Environmental Engineering | 298 | 11.3K | 100 | 173 |
| 55 | vibration | 339 | 11.0K | 7 | 10 |
| 56 | Environmental Management | 288 | 10.7K | 23 | 47 |
| 57 | Manufacturing Processes | 456 | 10.6K | 20 | 35 |
| 58 | Neural circuitry | 360 | 10.6K | 19 | 28 |
| 59 | fuel cells | 129 | 10.5K | 56 | 51 |
| 60 | Earthquake Engineering | 411 | 10.4K | 12 | 34 |
| 61 | Bioengineering | 256 | 10.3K | 199 | 299 |
| 62 | Research | 467 | 10.2K | 482 | 632 |
| 63 | Ocean Engineering | 424 | 10.2K | 24 | 31 |
| 64 | Nuclear Physics | 551 | 10.1K | 371 | 508 |
| 65 | Structural dynamics | 245 | 9.9K | 10 | 15 |
| 66 | Signal Processing | 440 | 9.7K | 55 | 153 |
| 67 | Environmental Policy | 237 | 9.4K | 69 | 142 |
| 68 | Environmental monitoring | 215 | 9.4K | 116 | 141 |
| 69 | Mathematics | 782 | 9.0K | 171 | 235 |
| 70 | Heat Exchangers | 298 | 8.9K | 13 | 14 |
| 71 | Systems Engineering | 308 | 8.9K | 14 | 27 |
| 72 | environmental protection | 321 | 8.8K | 22 | 95 |
| 73 | Biophysics | 309 | 8.6K | 454 | 514 |
| 74 | Electronics | 426 | 8.3K | 96 | 170 |
| 75 | Cybernetics | 141 | 7.9K | 52 | 58 |
| 76 | Environmental Chemistry | 69 | 7.8K | 171 | 123 |
| 77 | Energy Conversion | 103 | 7.5K | 77 | 120 |
| 78 | concrete | 112 | 7.4K | 50 | 56 |
| 79 | mass transfer | 357 | 7.4K | 15 | 57 |
| 80 | Intelligent Transportation Systems | 208 | 7.3K | 14 | 22 |
| 81 | Image Processing | 295 | 7.2K | 49 | 134 |
| 82 | Production Engineering | 348 | 7.2K | 21 | 21 |
| 83 | Measurement | 265 | 6.9K | 7 | 7 |
| 84 | Nanoparticles | 178 | 6.7K | 52 | 68 |
| 85 | Nanostructures | 188 | 6.2K | 27 | 105 |
| 86 | machinery | 184 | 5.8K | 2 | 1 |
| 87 | Signal Transduction | 39 | 5.8K | 232 | 65 |
| 88 | Tribology | 211 | 5.7K | 19 | 22 |
| 89 | Wireless Communication Systems | 309 | 5.7K | 56 | 149 |
| 90 | Biosensors | 99 | 5.5K | 53 | 51 |
| 91 | Statistical physics | 218 | 5.4K | 369 | 391 |
| 92 | Technology | 302 | 5.4K | 126 | 248 |
| 93 | Engineering | 344 | 5.3K | 94 | 180 |
| 94 | Information Science | 154 | 5.2K | 85 | 110 |
| 95 | sanitation | 89 | 5.2K | 153 | 208 |
| 96 | Polymers | 216 | 5.2K | 457 | 512 |
| 97 | Solitons | 123 | 5.2K | 12 | 5 |
| 97 | Fractals | 123 | 5.2K | 12 | 5 |
| 97 | Chaos | 123 | 5.2K | 12 | 5 |
| 100 | Microbiology | 175 | 5.1K | 711 | 904 |
| 101 | Botany | 107 | 5.1K | 608 | 538 |
| 102 | Smart Materials | 230 | 5.1K | 6 | 22 |
| 103 | Surface-Active Agents | 152 | 5.0K | 5 | 11 |
| 103 | Surface properties | 152 | 5.0K | 5 | 11 |
| 105 | Photonics | 167 | 4.9K | 125 | 198 |
| 106 | electric vehicles | 108 | 4.9K | 7 | 3 |
| 107 | Tunneling | 127 | 4.9K | 8 | 10 |
| 107 | underground construction | 127 | 4.9K | 8 | 10 |
| 109 | Metallography | 168 | 4.6K | 6 | 6 |
| 110 | Detectors | 249 | 4.6K | 12 | 12 |
| 111 | Earth Sciences | 138 | 4.5K | 269 | 318 |
| 112 | management | 152 | 4.5K | 277 | 471 |
| 113 | computer networks | 247 | 4.5K | 49 | 124 |
| 114 | Natural history | 33 | 4.5K | 824 | 964 |
| 115 | Mining Engineering | 92 | 4.4K | 13 | 15 |
| 116 | Bioelectronics | 69 | 4.4K | 59 | 59 |
| 117 | Solid State Physics | 265 | 4.3K | 409 | 573 |
| 118 | Lightweight concrete | 52 | 4.3K | 26 | 28 |
| 119 | miniaturization | 96 | 4.3K | 157 | 239 |
| 120 | Telecommunication | 145 | 4.2K | 202 | 269 |
| 121 | energy resources | 62 | 4.2K | 98 | 116 |
| 122 | Iron | 192 | 4.1K | 7 | 6 |
| 123 | Genomics | 103 | 4.1K | 312 | 295 |
| 124 | Green Chemistry | 109 | 4.1K | 102 | 172 |
| 125 | Combustion | 158 | 4.0K | 65 | 88 |
| 126 | Geotechnical Engineering | 69 | 4.0K | 38 | 27 |
| 127 | Quantum Gravity | 208 | 3.9K | 297 | 443 |
| 128 | Magnetic Materials | 146 | 3.9K | 56 | 77 |
| 129 | Structural design | 178 | 3.9K | 3 | 21 |
| 130 | natural gas | 96 | 3.9K | 13 | 9 |
| 131 | Industrial Engineering | 155 | 3.8K | 57 | 95 |
| 132 | Condensed Matter | 265 | 3.7K | 369 | 592 |
| 133 | Recycling | 47 | 3.7K | 24 | 20 |
| 134 | Radio | 104 | 3.7K | 137 | 176 |
| 135 | nucleic acids | 23 | 3.7K | 532 | 308 |
| 136 | Organic Chemistry | 113 | 3.7K | 370 | 359 |
| 137 | System analysis | 157 | 3.6K | 77 | 122 |
| 138 | internet | 156 | 3.6K | 36 | 80 |
| 139 | Internet of Things | 153 | 3.6K | 34 | 69 |
| 140 | Microelectronics | 79 | 3.6K | 206 | 241 |
| 141 | Environmental Geology | 91 | 3.5K | 52 | 58 |
| 142 | Control Theory | 166 | 3.5K | 67 | 116 |
| 143 | Cytology | 139 | 3.5K | 525 | 800 |
| 144 | United States | 105 | 3.4K | 650 | 555 |
| 145 | Radio waves | 96 | 3.4K | 79 | 91 |
| 146 | Carbon | 66 | 3.4K | 103 | 141 |
| 147 | Numerical Analysis | 148 | 3.3K | 73 | 91 |
| 148 | Japan | 123 | 3.2K | 92 | 60 |
| 149 | Energy Storage | 80 | 3.2K | 74 | 93 |
| 150 | Cancer | 79 | 3.2K | 504 | 552 |
| 151 | Cell Biology | 103 | 3.2K | 560 | 827 |
| 152 | Mathematical Physics | 141 | 3.1K | 309 | 323 |
| 153 | Industrial Safety | 80 | 3.1K | 43 | 49 |
| 154 | Multimedia Systems | 142 | 3.0K | 42 | 57 |
| 155 | Fiber Optics | 99 | 3.0K | 60 | 61 |
| 156 | Spectrum analysis | 180 | 2.9K | 447 | 814 |
| 157 | Mechatronics | 84 | 2.8K | 28 | 33 |
| 158 | lasers | 137 | 2.8K | 142 | 139 |
| 159 | Sustainable Engineering | 81 | 2.8K | 100 | 144 |
| 160 | Cement | 37 | 2.8K | 79 | 77 |
| 161 | Geophysics | 127 | 2.8K | 496 | 619 |
| 162 | Economics | 166 | 2.8K | 448 | 571 |
| 163 | Toxicology | 113 | 2.7K | 580 | 745 |
| 164 | energy development | 45 | 2.7K | 36 | 100 |
| 165 | Information Technology | 93 | 2.6K | 125 | 219 |
| 166 | Solar Energy | 48 | 2.6K | 188 | 130 |
| 167 | Civil Engineering | 178 | 2.5K | 45 | 50 |
| 168 | Hazardous waste | 49 | 2.5K | 36 | 42 |
| 169 | finance | 122 | 2.5K | 134 | 238 |
| 170 | Neurology | 65 | 2.5K | 1015 | 1020 |
| 171 | radioactive waste | 41 | 2.4K | 35 | 42 |
| 171 | industrial waste | 41 | 2.4K | 40 | 43 |
| 173 | Bioorganic chemistry | 52 | 2.4K | 563 | 424 |
| 174 | Pharmacology | 146 | 2.3K | 672 | 974 |
| 175 | Robotics | 99 | 2.3K | 110 | 179 |
| 175 | Nervous system | 66 | 2.3K | 374 | 454 |
| 177 | environmental exposure | 74 | 2.3K | 108 | 148 |
| 178 | mathematical analysis | 204 | 2.3K | 84 | 160 |
| 179 | environmental indicators | 62 | 2.2K | 40 | 52 |
| 180 | International Finance | 100 | 2.2K | 62 | 135 |
| 181 | plant molecular biology | 38 | 2.2K | 314 | 377 |
| 182 | Membranes | 45 | 2.2K | 354 | 357 |
| 183 | Economic History | 118 | 2.2K | 262 | 334 |
| 184 | Industrial Microbiology | 75 | 2.2K | 125 | 254 |
| 185 | Plastics | 57 | 2.2K | 171 | 112 |
| 186 | Operations Research | 91 | 2.2K | 226 | 323 |
| 187 | Plant physiology | 56 | 2.1K | 368 | 446 |
| 188 | Oncology | 65 | 2.1K | 272 | 643 |
| 189 | Production Management | 37 | 2.1K | 188 | 227 |
| 190 | city planning | 70 | 2.1K | 154 | 149 |
| 191 | Environmental Toxicology | 75 | 2.1K | 184 | 349 |
| 192 | Environmental pollutants | 71 | 2.1K | 180 | 260 |
| 193 | Communication | 35 | 2.1K | 485 | 299 |
| 194 | polymerization | 127 | 2.1K | 536 | 755 |
| 195 | Soil dynamics | 76 | 2.1K | 18 | 22 |
| 196 | Housing | 39 | 2.0K | 35 | 24 |
| 197 | Urban Planning | 38 | 2.0K | 18 | 14 |
| 197 | community development | 38 | 2.0K | 36 | 10 |
| 197 | Population | 38 | 2.0K | 101 | 67 |
| 200 | plasticity | 45 | 2.0K | 22 | 52 |
| 201 | Process Control | 34 | 2.0K | 102 | 131 |
| 202 | Evolutionary Computation | 37 | 2.0K | 37 | 82 |
| 203 | Mobile Computing | 88 | 2.0K | 48 | 89 |
| 204 | Petroleum Engineering | 67 | 2.0K | 72 | 69 |
| 205 | pollutants | 61 | 1.9K | 170 | 234 |
| 206 | economic policy | 72 | 1.9K | 258 | 204 |
| 207 | Energy Harvesting | 19 | 1.9K | 107 | 102 |
| 208 | Physical Chemistry | 25 | 1.9K | 730 | 441 |
| 208 | Food | 67 | 1.9K | 437 | 563 |
| 210 | Oxidative stress | 17 | 1.8K | 178 | 100 |
| 211 | Urban Policy | 40 | 1.8K | 68 | 42 |
| 212 | Social Change | 22 | 1.8K | 194 | 124 |
| 213 | Solid State Chemistry | 111 | 1.8K | 232 | 352 |
| 214 | Electromagnetism | 120 | 1.7K | 25 | 101 |
| 215 | Intelligent Control Systems | 119 | 1.7K | 6 | 19 |
| 216 | Bioinformatics | 54 | 1.7K | 314 | 393 |
| 217 | health planning | 103 | 1.7K | 94 | 179 |
| 217 | gene mapping | 27 | 1.7K | 497 | 393 |
| 219 | Genetic algorithms | 21 | 1.7K | 59 | 82 |
| 220 | Nonlinear functional analysis | 68 | 1.6K | 50 | 37 |
| 221 | Analytical Biochemistry | 92 | 1.6K | 59 | 195 |
| 222 | Ultrasonics | 57 | 1.6K | 102 | 146 |
| 223 | Plant cells | 17 | 1.6K | 425 | 433 |
| 224 | Nanobiotechnology | 29 | 1.6K | 44 | 49 |
| 225 | Nanochemistry | 78 | 1.6K | 28 | 29 |
| 226 | Genetics | 42 | 1.6K | 817 | 901 |
| 227 | Pharmaceutical Chemistry | 75 | 1.6K | 637 | 798 |
| 228 | Medical Physics | 57 | 1.6K | 294 | 338 |
| 229 | Dynamics | 93 | 1.6K | 56 | 81 |
| 230 | Energy Consumption | 43 | 1.6K | 18 | 37 |
| 231 | Chromosome mapping | 26 | 1.6K | 452 | 330 |
| 232 | Environmental Law | 34 | 1.5K | 169 | 251 |
| 233 | Parallel Processing | 31 | 1.5K | 65 | 67 |
| 234 | Telecommunication Systems | 83 | 1.5K | 67 | 92 |
| 235 | Investment analysis | 60 | 1.5K | 24 | 46 |
| 236 | Immunology | 39 | 1.5K | 777 | 807 |
| 237 | Fuzzy systems | 112 | 1.5K | 30 | 59 |
| 238 | Land use | 38 | 1.5K | 108 | 112 |
| 239 | Mineral resources | 30 | 1.5K | 35 | 30 |
| 240 | Plant genetic engineering | 19 | 1.5K | 252 | 152 |
| 241 | Genetic engineering | 46 | 1.5K | 336 | 451 |
| 242 | Human-Computer Interaction | 60 | 1.4K | 85 | 162 |
| 243 | Plants | 29 | 1.4K | 531 | 538 |
| 244 | Molecular Spectroscopy | 84 | 1.4K | 99 | 177 |
| 245 | Sustainable Development | 78 | 1.4K | 76 | 341 |
| 246 | biological factors | 61 | 1.4K | 169 | 309 |
| 247 | Medical Oncology | 57 | 1.4K | 259 | 361 |
| 248 | Building | 59 | 1.4K | 46 | 51 |
| 249 | Nutrition | 45 | 1.3K | 929 | 1016 |
| 250 | Electrophoresis | 71 | 1.3K | 124 | 217 |
| 251 | Agricultural Chemistry | 44 | 1.3K | 402 | 455 |
| 252 | Engineering Mathematics | 146 | 1.3K | 60 | 209 |
| 253 | Medical Laboratory Science | 38 | 1.3K | 395 | 517 |
| 254 | Chromatographic analysis | 80 | 1.3K | 126 | 196 |
| 255 | free radicals | 34 | 1.3K | 249 | 382 |
| 256 | biocatalysis | 4 | 1.3K | 125 | 100 |
| 256 | Homogeneous catalysis | 4 | 1.3K | 125 | 100 |
| 256 | Heterogeneous catalysis | 4 | 1.3K | 125 | 100 |
| 259 | Geomorphology | 21 | 1.3K | 464 | 333 |
| 260 | Plant tissue culture | 16 | 1.3K | 181 | 55 |
| 260 | Plant cell culture | 16 | 1.3K | 144 | 53 |
| 262 | Chromatography | 76 | 1.2K | 97 | 174 |
| 263 | Clinical Chemistry | 46 | 1.2K | 576 | 663 |
| 264 | Computer Graphics | 69 | 1.2K | 201 | 321 |
| 265 | Water quality management | 58 | 1.2K | 173 | 216 |
| 266 | Cellular senescence | 5 | 1.2K | 153 | 39 |
| 267 | Nonlinear systems | 60 | 1.2K | 26 | 48 |
| 268 | particles | 62 | 1.2K | 38 | 61 |
| 269 | solar power | 13 | 1.2K | 262 | 125 |
| 269 | solar cells | 13 | 1.2K | 302 | 153 |
| 271 | Asia | 70 | 1.2K | 219 | 262 |
| 272 | Electrochemical Analysis | 39 | 1.2K | 291 | 257 |
| 273 | Cell death | 33 | 1.2K | 249 | 380 |
| 274 | Semiconductors | 77 | 1.1K | 201 | 245 |
| 275 | Geochemistry | 54 | 1.1K | 449 | 591 |
| 276 | Astronomy | 67 | 1.1K | 688 | 926 |
| 277 | Nondestructive testing | 68 | 1.1K | 25 | 55 |
| 278 | multimedia | 37 | 1.1K | 64 | 85 |
| 278 | Interactive multimedia | 37 | 1.1K | 68 | 86 |
| 280 | carbon monoxide | 17 | 1.1K | 26 | 14 |
| 281 | Computer-Aided Design | 42 | 1.1K | 155 | 182 |
| 282 | Horticulture | 20 | 1.1K | 182 | 45 |
| 283 | Ventilation | 36 | 1.1K | 43 | 48 |
| 283 | Microwaves | 76 | 1.1K | 189 | 244 |
| 285 | Nonlinear Dynamics | 51 | 1.1K | 476 | 549 |
| 286 | natural disasters | 40 | 1.1K | 109 | 186 |
| 287 | Hydrology | 54 | 1.1K | 400 | 578 |
| 288 | Physiology | 51 | 1.1K | 932 | 1182 |
| 288 | Statistics | 110 | 1.1K | 315 | 549 |
| 290 | Computer Science | 114 | 1.1K | 49 | 205 |
| 291 | Virology | 13 | 1.1K | 1150 | 985 |
| 292 | indoor air pollution | 25 | 1.0K | 38 | 42 |
| 292 | Sick building syndrome | 25 | 1.0K | 38 | 42 |
| 294 | Computational Intelligence | 52 | 985 | 19 | 42 |
| 295 | Technological Innovations | 38 | 979 | 79 | 124 |
| 296 | structural stability | 39 | 974 | 13 | 56 |
| 297 | air quality management | 25 | 963 | 33 | 47 |
| 298 | Optoelectronics | 51 | 949 | 24 | 10 |
| 299 | Astrophysics | 54 | 946 | 890 | 1118 |
| 300 | Inflammation | 10 | 942 | 483 | 276 |
| 301 | Fluid Dynamics | 49 | 941 | 152 | 224 |
| 302 | Ultrasound | 42 | 940 | 93 | 122 |
| 303 | Transportation | 36 | 924 | 360 | 430 |
| 304 | Geology | 53 | 915 | 735 | 865 |
| 305 | Granular materials | 43 | 913 | 23 | 43 |
| 306 | Optical Communications | 48 | 909 | 64 | 77 |
| 307 | Plant Genetics | 14 | 888 | 244 | 237 |
| 308 | Quantum electronics | 47 | 885 | 267 | 303 |
| 309 | Entropy | 55 | 861 | 37 | 48 |
| 310 | Public Health | 23 | 858 | 1690 | 1413 |
| 310 | hazard mitigation | 39 | 858 | 49 | 120 |
| 312 | Chemical analysis | 29 | 856 | 179 | 198 |
| 313 | Australia | 39 | 853 | 262 | 263 |
| 314 | Diagnostic Imaging | 108 | 845 | 132 | 468 |
| 315 | Neurochemistry | 35 | 837 | 641 | 781 |
| 316 | Project Management | 17 | 825 | 60 | 97 |
| 317 | Ultrasonic Imaging | 35 | 821 | 42 | 50 |
| 318 | food technology | 43 | 817 | 509 | 793 |
| 319 | Soil Science | 21 | 805 | 602 | 563 |
| 319 | economic analysis | 30 | 805 | 10 | 14 |
| 321 | Combinatorial chemistry | 19 | 800 | 177 | 220 |
| 322 | Boundary Value Problems | 71 | 799 | 34 | 123 |
| 323 | Chemical industry | 58 | 798 | 130 | 176 |
| 324 | Plant Biotechnology | 12 | 793 | 268 | 150 |
| 325 | Decision making | 30 | 783 | 279 | 358 |
| 326 | Antenna Arrays | 62 | 778 | 37 | 121 |
| 327 | Bioenergetics | 23 | 775 | 196 | 258 |
| 328 | Metallic Glasses | 35 | 764 | 44 | 70 |
| 329 | commerce | 53 | 757 | 113 | 429 |
| 330 | Waste management | 46 | 752 | 141 | 223 |
| 330 | Mechanics | 67 | 752 | 85 | 233 |
| 332 | Computer Vision | 44 | 740 | 145 | 386 |
| 333 | Ceramic materials | 40 | 738 | 186 | 296 |
| 334 | Mineralogy | 62 | 736 | 239 | 440 |
| 334 | Insects | 26 | 736 | 333 | 306 |
| 336 | Molecular structure | 48 | 722 | 403 | 691 |
| 337 | Porous materials | 26 | 720 | 89 | 65 |
| 338 | Computational Biology | 36 | 706 | 543 | 770 |
| 339 | Nuclear Engineering | 101 | 701 | 146 | 274 |
| 340 | Ecological Engineering | 18 | 698 | 90 | 134 |
| 341 | Sonochemistry | 15 | 697 | 136 | 180 |
| 342 | Microbial Ecology | 26 | 696 | 649 | 969 |
| 343 | Ceramics | 46 | 692 | 203 | 343 |
| 343 | proteins | 28 | 692 | 545 | 598 |
| 345 | sustainability | 16 | 682 | 227 | 287 |
| 346 | Recombinant DNA | 27 | 680 | 335 | 394 |
| 347 | Social Sciences | 68 | 678 | 499 | 801 |
| 348 | Plant diseases | 17 | 672 | 768 | 556 |
| 349 | Psychiatry | 25 | 667 | 1300 | 1371 |
| 349 | Immunotherapy | 48 | 667 | 283 | 661 |
| 351 | Fluid Mechanics | 49 | 663 | 250 | 437 |
| 352 | Histology | 28 | 656 | 505 | 628 |
| 353 | Drug design | 32 | 640 | 234 | 438 |
| 354 | Transnational corporations | 23 | 632 | 19 | 25 |
| 355 | Differential Equations | 41 | 631 | 147 | 228 |
| 356 | Landslides | 13 | 627 | 47 | 63 |
| 357 | Oxidation-reduction | 15 | 625 | 255 | 418 |
| 358 | Software Engineering | 41 | 622 | 139 | 296 |
| 358 | Quantum theory | 26 | 622 | 257 | 247 |
| 360 | Thermodynamics | 63 | 621 | 69 | 168 |
| 361 | Imaging systems | 79 | 610 | 10 | 54 |
| 362 | Luminescence | 33 | 606 | 206 | 225 |
| 363 | clay | 16 | 605 | 201 | 241 |
| 364 | Functional Analysis | 53 | 603 | 171 | 319 |
| 365 | Sociology | 34 | 587 | 743 | 927 |
| 366 | Stem cells | 19 | 583 | 474 | 534 |
| 367 | cell physiology | 16 | 582 | 553 | 660 |
| 368 | Molecular cloning | 24 | 575 | 341 | 418 |
| 368 | Genetic recombination | 24 | 575 | 330 | 412 |
| 370 | Photochemistry | 17 | 574 | 609 | 538 |
| 371 | pottery | 37 | 573 | 186 | 331 |
| 371 | software | 20 | 573 | 223 | 309 |
| 373 | infrared radiation | 32 | 571 | 55 | 42 |
| 374 | Water Purification | 37 | 562 | 134 | 236 |
| 375 | Structural health monitoring | 24 | 559 | 13 | 42 |
| 376 | Glass | 34 | 558 | 206 | 339 |
| 377 | Environmental Microbiology | 16 | 557 | 459 | 614 |
| 378 | Nuclear Energy | 82 | 540 | 95 | 217 |
| 379 | Biomechanics | 38 | 534 | 231 | 470 |
| 380 | Image enhancement | 21 | 528 | 43 | 41 |
| 380 | cytokines | 33 | 528 | 169 | 434 |
| 382 | Drug delivery systems | 21 | 526 | 453 | 666 |
| 383 | Information Theory | 20 | 522 | 474 | 478 |
| 384 | Egypt | 18 | 520 | 78 | 82 |
| 385 | micromechanics | 22 | 519 | 126 | 159 |
| 386 | Adaptive control systems | 40 | 516 | 41 | 76 |
| 387 | Host-parasite interactions | 8 | 512 | 615 | 650 |
| 388 | Systems Analysis | 24 | 511 | 225 | 236 |
| 389 | Oncogenes | 11 | 507 | 490 | 614 |
| 390 | Combinatorial optimization | 32 | 501 | 22 | 18 |
| 391 | Visual Communication | 20 | 500 | 49 | 45 |
| 392 | Psychology | 43 | 497 | 1200 | 1663 |
| 393 | Eastern Europe | 40 | 489 | 54 | 62 |
| 394 | biological evolution | 9 | 487 | 1065 | 981 |
| 395 | Photography | 382 | 485 | 61 | 145 |
| 395 | Simulation Methods | 12 | 485 | 361 | 146 |
| 397 | Geomagnetism | 14 | 482 | 264 | 228 |
| 398 | Photobiology | 11 | 479 | 597 | 426 |
| 399 | Cloud Computing | 18 | 475 | 36 | 53 |
| 400 | protein | 11 | 473 | 551 | 432 |
| 401 | Logistics | 17 | 465 | 115 | 205 |
| 402 | Pathology | 30 | 461 | 548 | 842 |
| 403 | Behavior | 11 | 457 | 1533 | 1560 |
| 404 | human behavior | 11 | 456 | 1182 | 1313 |
| 405 | Plant breeding | 12 | 455 | 270 | 213 |
| 406 | Capital market | 23 | 454 | 53 | 103 |
| 407 | Information Systems | 26 | 452 | 263 | 429 |
| 408 | Marine Geology | 15 | 451 | 177 | 174 |
| 409 | Radiography | 12 | 449 | 301 | 414 |
| 410 | Zeolites | 17 | 446 | 279 | 378 |
| 411 | impact | 14 | 442 | 95 | 125 |
| 411 | Insect biochemistry | 15 | 442 | 130 | 164 |
| 413 | Entomology | 20 | 439 | 807 | 695 |
| 414 | Lightweight Materials | 21 | 438 | 4 | 4 |
| 415 | Risk Management | 15 | 437 | 172 | 179 |
| 416 | Quality Control | 22 | 434 | 396 | 592 |
| 417 | Friction | 14 | 430 | 13 | 22 |
| 418 | Technology Assessment | 9 | 429 | 95 | 120 |
| 419 | Immunopharmacology | 33 | 427 | 152 | 358 |
| 420 | Microbial Biotechnology | 25 | 426 | 115 | 277 |
| 421 | Tourism | 14 | 423 | 662 | 837 |
| 422 | Metabolism | 22 | 415 | 832 | 1174 |
| 423 | soil microbiology | 13 | 412 | 635 | 882 |
| 424 | Immunity | 8 | 405 | 903 | 1005 |
| 425 | Health Policy | 7 | 403 | 1217 | 773 |
| 426 | Crystal growth | 16 | 402 | 347 | 371 |
| 427 | Environmental risk assessment | 12 | 401 | 70 | 60 |
| 428 | probabilities | 35 | 399 | 345 | 386 |
| 429 | Organometallic compounds | 18 | 397 | 481 | 533 |
| 430 | Physical organic chemistry | 21 | 395 | 461 | 537 |
| 430 | Transgenic plants | 12 | 395 | 112 | 141 |
| 430 | marketing | 19 | 395 | 751 | 978 |
| 433 | Microprocessors | 34 | 389 | 45 | 95 |
| 434 | Computer Architecture | 37 | 379 | 47 | 94 |
| 435 | Plant Ecology | 14 | 377 | 761 | 938 |
| 436 | natural products | 21 | 376 | 553 | 636 |
| 436 | cell interaction | 28 | 376 | 181 | 523 |
| 438 | Economic Development | 8 | 372 | 876 | 789 |
| 439 | Cognitive Science | 23 | 368 | 416 | 744 |
| 440 | Mountains | 32 | 361 | 19 | 32 |
| 440 | Evolution | 9 | 361 | 968 | 932 |
| 440 | amino acids | 6 | 361 | 340 | 189 |
| 443 | Geography | 21 | 359 | 695 | 919 |
| 443 | Molecules | 28 | 359 | 459 | 593 |
| 445 | Herbal medicine | 12 | 356 | 227 | 314 |
| 446 | Medicinal plants | 18 | 355 | 400 | 743 |
| 447 | Light | 7 | 350 | 565 | 646 |
| 448 | Cellulose | 12 | 349 | 189 | 236 |
| 449 | Pharmaceutical Technology | 22 | 345 | 439 | 739 |
| 450 | Materials Engineering | 32 | 340 | 48 | 114 |
| 451 | Remote Sensing | 21 | 338 | 415 | 451 |
| 451 | Calorimetry | 23 | 338 | 250 | 349 |
| 451 | Thermal analysis | 23 | 338 | 250 | 349 |
| 454 | big data | 18 | 337 | 63 | 169 |
| 455 | Nanophotonics | 12 | 335 | 89 | 139 |
| 456 | synthesis | 18 | 334 | 267 | 202 |
| 457 | Swarm Intelligence | 16 | 333 | 34 | 113 |
| 458 | Medical Microbiology | 10 | 327 | 1043 | 1194 |
| 459 | Wind power | 10 | 326 | 87 | 63 |
| 460 | Hydrogeology | 22 | 321 | 104 | 225 |
| 461 | Computational Fluid Dynamics | 16 | 320 | 195 | 236 |
| 461 | optical devices | 18 | 320 | 79 | 109 |
| 461 | drugs | 14 | 320 | 818 | 902 |
| 464 | Biodiversity | 17 | 318 | 799 | 1057 |
| 465 | Pharmacy | 11 | 316 | 1018 | 995 |
| 465 | East Asia | 20 | 316 | 97 | 82 |
| 467 | Data Mining | 25 | 315 | 319 | 759 |
| 467 | Developing countries | 19 | 315 | 757 | 1002 |
| 469 | Econometrics | 17 | 313 | 520 | 567 |
| 470 | Industrial Ecology | 4 | 312 | 131 | 103 |
| 470 | Adhesion | 13 | 312 | 180 | 182 |
| 470 | adhesives | 13 | 312 | 194 | 183 |
| 473 | Geographic information systems | 15 | 304 | 328 | 319 |
| 474 | Proteomics | 11 | 298 | 469 | 591 |
| 475 | Public Administration | 18 | 291 | 498 | 565 |
| 475 | pigments | 23 | 291 | 178 | 356 |
| 477 | Sound | 30 | 290 | 212 | 376 |
| 478 | Petroleum Geology | 6 | 289 | 344 | 248 |
| 479 | Informatics | 14 | 288 | 277 | 389 |
| 480 | Humanities | 46 | 287 | 117 | 410 |
| 481 | Food inspection | 5 | 286 | 13 | 4 |
| 481 | Microstructure | 39 | 286 | 55 | 194 |
| 481 | food quality | 5 | 286 | 13 | 4 |
| 484 | Geothermal Energy | 14 | 285 | 47 | 74 |
| 484 | Genes | 10 | 285 | 515 | 478 |
| 486 | Organometallic chemistry | 29 | 284 | 539 | 893 |
| 487 | Atomic spectroscopy | 16 | 281 | 435 | 476 |
| 488 | Public Policy | 12 | 280 | 777 | 849 |
| 489 | Critical Care | 7 | 279 | 754 | 850 |
| 489 | Critical Care Medicine | 7 | 279 | 734 | 850 |
| 489 | catalytic activity | 17 | 279 | 183 | 378 |
| 492 | Pharmacognosy | 20 | 277 | 595 | 1136 |
| 493 | Bioinorganic chemistry | 16 | 274 | 592 | 745 |
| 494 | Educational Technology | 10 | 273 | 809 | 785 |
| 495 | Hematopoietic stem cell transplantation | 7 | 272 | 199 | 230 |
| 495 | Cell differentiation | 12 | 272 | 677 | 992 |
| 497 | Diabetes | 11 | 271 | 889 | 1094 |
| 498 | Marine Biology | 13 | 269 | 1205 | 1366 |
| 499 | dietary supplements | 18 | 267 | 154 | 406 |
| 500 | emergency management | 5 | 266 | 475 | 295 |
| 501 | Quantum Optics | 12 | 265 | 383 | 360 |
| 501 | nuclear magnetic resonance | 23 | 265 | 327 | 463 |
| 501 | Magnetic Resonance Spectroscopy | 23 | 265 | 365 | 505 |
| 501 | Laser Spectroscopy | 12 | 265 | 344 | 318 |
| 505 | Molecular Microbiology | 4 | 264 | 664 | 637 |
| 506 | Education | 7 | 263 | 2347 | 1537 |
| 507 | Green Technology | 13 | 262 | 56 | 96 |
| 508 | Food additives | 9 | 261 | 523 | 699 |
| 509 | Evidence-Based Medicine | 12 | 260 | 240 | 277 |
| 510 | Nanoelectronics | 9 | 258 | 406 | 227 |
| 511 | Developmental Biology | 10 | 257 | 937 | 1193 |
| 512 | Structural optimization | 12 | 254 | 121 | 180 |
| 512 | Thermochemistry | 14 | 254 | 176 | 222 |
| 514 | Biodegradation | 9 | 253 | 284 | 395 |
| 514 | Microscopy | 23 | 253 | 328 | 559 |
| 516 | Epidemiology | 9 | 252 | 1770 | 1648 |
| 517 | X-rays | 43 | 251 | 32 | 138 |
| 518 | Bacterial infections | 4 | 250 | 586 | 557 |
| 519 | Plasma devices | 12 | 249 | 120 | 162 |
| 520 | Computer Engineering | 21 | 248 | 145 | 300 |
| 521 | Diabetes mellitus | 7 | 247 | 1051 | 1113 |
| 522 | Computational Complexity | 19 | 246 | 217 | 289 |
| 522 | mycoses | 2 | 246 | 831 | 557 |
| 524 | Refractory materials | 33 | 244 | 9 | 6 |
| 525 | Product Design | 22 | 240 | 135 | 185 |
| 525 | biopolymers | 15 | 240 | 459 | 669 |
| 527 | extraterrestrial environment | 13 | 239 | 175 | 191 |
| 527 | astronomical phenomena | 13 | 239 | 157 | 171 |
| 529 | Atmospheric Physics | 8 | 232 | 871 | 921 |
| 529 | biofuels | 2 | 232 | 316 | 245 |
| 531 | Computational Chemistry | 8 | 231 | 372 | 404 |
| 532 | Plant hormones | 9 | 228 | 108 | 164 |
| 533 | Molecular Pharmacology | 9 | 224 | 391 | 555 |
| 534 | Electromagnetic compatibility | 16 | 223 | 101 | 143 |
| 535 | peptides | 15 | 222 | 189 | 280 |
| 536 | hydrocolloids | 6 | 221 | 402 | 570 |
| 536 | econometric models | 17 | 221 | 93 | 322 |
| 538 | Cell communication | 13 | 219 | 134 | 414 |
| 539 | Soft Condensed Matter | 14 | 218 | 455 | 631 |
| 540 | soil conservation | 18 | 217 | 150 | 434 |
| 540 | data collection | 10 | 217 | 450 | 650 |
| 542 | Medical Technology | 21 | 216 | 405 | 861 |
| 542 | Quality of life | 9 | 216 | 730 | 904 |
| 544 | DNA | 9 | 214 | 229 | 251 |
| 545 | Biogeochemistry | 6 | 213 | 708 | 785 |
| 546 | Particle Physics | 3 | 212 | 215 | 190 |
| 546 | Elementary particles | 3 | 212 | 164 | 175 |
| 548 | Histochemistry | 12 | 210 | 458 | 543 |
| 549 | Atmospheric Chemistry | 4 | 209 | 686 | 681 |
| 550 | Radiation | 34 | 208 | 471 | 1045 |
| 551 | Neurophysiology | 22 | 207 | 995 | 1674 |
| 551 | Catalysts | 13 | 207 | 210 | 342 |
| 551 | Radiation effects | 7 | 207 | 321 | 427 |
| 554 | Embryology | 6 | 203 | 919 | 969 |
| 555 | Multiphase Flow | 17 | 202 | 92 | 253 |
| 556 | rehabilitation | 17 | 201 | 776 | 1214 |
| 556 | enzymes | 11 | 201 | 703 | 967 |
| 558 | Alternative Medicine | 10 | 198 | 669 | 904 |
| 558 | complementary therapies | 10 | 198 | 737 | 941 |
| 558 | construction industry | 12 | 198 | 31 | 37 |
| 561 | Molecular evolution | 4 | 197 | 1178 | 1043 |
| 562 | Hematology | 12 | 196 | 904 | 1126 |
| 563 | Brain | 17 | 195 | 1089 | 1605 |
| 564 | Natural resources | 13 | 193 | 276 | 497 |
| 564 | Vaccines | 11 | 193 | 726 | 931 |
| 566 | water supply | 10 | 189 | 404 | 626 |
| 567 | Financial Engineering | 4 | 188 | 66 | 46 |
| 568 | Ethics | 1 | 187 | 1517 | 402 |
| 568 | Human Rights | 2 | 187 | 712 | 218 |
| 568 | Social Entrepreneurship | 1 | 187 | 310 | 40 |
| 571 | Roads | 7 | 186 | 415 | 312 |
| 572 | Gerontology | 12 | 185 | 870 | 943 |
| 573 | Diagnosis | 11 | 183 | 114 | 161 |
| 573 | Sensor Networks | 16 | 183 | 32 | 93 |
| 573 | Respiration | 6 | 183 | 922 | 934 |
| 576 | Municipal Engineering | 6 | 182 | 149 | 154 |
| 576 | Liver diseases | 13 | 182 | 573 | 931 |
| 578 | Growth factors | 5 | 181 | 144 | 252 |
| 579 | Hydraulic Engineering | 9 | 179 | 471 | 529 |
| 579 | Proteome | 4 | 179 | 865 | 802 |
| 581 | Functional foods | 6 | 178 | 186 | 203 |
| 581 | Geobiology | 5 | 178 | 300 | 281 |
| 581 | Phytotherapy | 6 | 178 | 338 | 402 |
| 584 | Health Services Research | 5 | 176 | 1074 | 843 |
| 585 | Mycology | 9 | 175 | 842 | 1034 |
| 585 | Lipids | 7 | 175 | 762 | 958 |
| 585 | Fungi | 9 | 175 | 539 | 789 |
| 588 | Virulence | 7 | 174 | 605 | 939 |
| 588 | Bones | 2 | 174 | 751 | 609 |
| 590 | Phytochemistry | 1 | 173 | 631 | 139 |
| 590 | Regional Planning | 11 | 173 | 745 | 920 |
| 590 | Thrombosis | 4 | 173 | 735 | 647 |
| 590 | Phytoremediation | 1 | 173 | 631 | 139 |
| 590 | environmental remediation | 1 | 173 | 750 | 163 |
| 590 | Bioreactors | 1 | 173 | 631 | 139 |
| 596 | Superconductors | 13 | 171 | 404 | 423 |
| 597 | RNA | 5 | 170 | 354 | 409 |
| 598 | Electromagnetic fields | 39 | 169 | 17 | 34 |
| 599 | Neuropsychology | 15 | 168 | 946 | 1409 |
| 599 | vascular diseases | 1 | 168 | 876 | 540 |
| 601 | Plasma chemistry | 13 | 167 | 120 | 241 |
| 601 | Meteorites | 2 | 167 | 863 | 742 |
| 603 | Regeneration | 7 | 166 | 22 | 19 |
| 604 | Ferroelectricity | 16 | 165 | 391 | 435 |
| 604 | United Kingdom | 3 | 165 | 1253 | 971 |
| 606 | Social policy | 11 | 164 | 455 | 525 |
| 606 | Semiconductor industry | 4 | 164 | 488 | 262 |
| 606 | Microwave devices | 8 | 164 | 266 | 279 |
| 609 | Integrated Circuits | 20 | 163 | 192 | 223 |
| 610 | Marine Geophysics | 9 | 162 | 72 | 103 |
| 610 | Marine mineral resources | 9 | 162 | 41 | 41 |
| 610 | Product life cycle | 6 | 162 | 149 | 218 |
| 610 | green products | 6 | 162 | 138 | 211 |
| 610 | Seabed | 9 | 162 | 41 | 41 |
| 615 | DNS | 6 | 161 | 270 | 303 |
| 616 | Wireless Communication | 15 | 159 | 61 | 140 |
| 616 | Financial management | 4 | 159 | 360 | 385 |
| 618 | Noise | 18 | 158 | 12 | 27 |
| 619 | Forest Ecology | 6 | 156 | 676 | 778 |
| 619 | Forest Management | 6 | 156 | 650 | 738 |
| 619 | Growth | 4 | 156 | 836 | 972 |
| 622 | Highway Engineering | 10 | 155 | 151 | 192 |
| 622 | Business | 7 | 155 | 1474 | 1787 |
| 622 | supercritical fluids | 1 | 155 | 679 | 309 |
| 622 | Economic planning | 9 | 155 | 200 | 307 |
| 626 | nuclear power | 22 | 154 | 117 | 179 |
| 626 | freshwater biology | 5 | 154 | 652 | 619 |
| 628 | Aging | 11 | 153 | 1231 | 1548 |
| 629 | land degradation | 9 | 152 | 162 | 344 |
| 629 | degradation | 9 | 152 | 162 | 344 |
| 631 | planning | 8 | 151 | 360 | 383 |
| 632 | Genetic therapy | 5 | 150 | 675 | 755 |
| 633 | biomedicine | 7 | 149 | 227 | 403 |
| 634 | Pediatric Neurology | 1 | 148 | 1007 | 806 |
| 634 | genome | 6 | 148 | 878 | 1210 |
| 636 | Second Language Acquisition | 5 | 147 | 114 | 176 |
| 637 | Bioremediation | 7 | 146 | 435 | 678 |
| 638 | Information Retrieval | 8 | 145 | 211 | 337 |
| 638 | Hydrodynamics | 7 | 145 | 363 | 456 |
| 638 | Mass Spectrometry | 8 | 145 | 637 | 736 |
| 641 | Industrial Design | 9 | 144 | 86 | 169 |
| 641 | Systems Biology | 14 | 144 | 584 | 1026 |
| 641 | Cognitive Radio Networks | 7 | 144 | 87 | 138 |
| 641 | Nonlinear mechanics | 8 | 144 | 204 | 269 |
| 645 | Immunopathology | 8 | 143 | 622 | 854 |
| 646 | Cognitive neuroscience | 6 | 142 | 652 | 817 |
| 647 | Actuarial Science | 7 | 141 | 140 | 147 |
| 647 | insurance | 7 | 141 | 207 | 207 |
| 649 | Neurobiology | 7 | 140 | 971 | 1252 |
| 649 | Leukemia | 5 | 140 | 595 | 672 |
| 651 | Agricultural Engineering | 7 | 139 | 222 | 326 |
| 651 | Water Microbiology | 4 | 139 | 336 | 305 |
| 651 | Fouling | 3 | 139 | 210 | 208 |
| 654 | Respiratory system | 4 | 137 | 434 | 427 |
| 654 | Medical innovations | 6 | 137 | 543 | 994 |
| 654 | Cytokine | 3 | 137 | 367 | 377 |
| 657 | Embedded Systems | 8 | 136 | 96 | 110 |
| 657 | Digestive system diseases | 7 | 136 | 538 | 625 |
| 659 | Aerospace Engineering | 10 | 134 | 102 | 104 |
| 659 | Psychophysiology | 6 | 134 | 1747 | 1950 |
| 661 | Tissue Engineering | 8 | 133 | 138 | 263 |
| 661 | Thin Films | 8 | 133 | 232 | 256 |
| 661 | Biomass | 7 | 133 | 335 | 665 |
| 664 | Mental Disorders | 12 | 132 | 1206 | 1842 |
| 664 | global environmental change | 3 | 132 | 765 | 775 |
| 666 | Neuroplasticity | 4 | 131 | 167 | 211 |
| 666 | human development | 4 | 131 | 684 | 688 |
| 668 | Bifurcation Theory | 7 | 129 | 107 | 145 |
| 668 | microwave communication systems | 7 | 129 | 221 | 282 |
| 670 | Rheumatology | 3 | 127 | 904 | 791 |
| 671 | Geriatrics | 12 | 126 | 1265 | 1726 |
| 672 | Ecohydrology | 7 | 125 | 150 | 233 |
| 672 | Pesticides | 7 | 125 | 326 | 406 |
| 674 | Nursing | 13 | 124 | 849 | 1134 |
| 674 | Clinical Pharmacology | 6 | 124 | 805 | 891 |
| 674 | Mental Health | 5 | 124 | 1116 | 1061 |
| 674 | Politics | 1 | 124 | 753 | 323 |
| 674 | Bacteriology | 3 | 124 | 1532 | 1488 |
| 674 | government | 1 | 124 | 815 | 365 |
| 674 | biological monitoring | 7 | 124 | 233 | 396 |
| 681 | Medical Anthropology | 2 | 123 | 1341 | 1127 |
| 681 | Fluorescence | 14 | 123 | 57 | 218 |
| 683 | Architectural Design | 5 | 122 | 320 | 222 |
| 684 | Medical genetics | 10 | 121 | 1073 | 1724 |
| 685 | infection | 5 | 120 | 1026 | 1185 |
| 686 | Memory | 7 | 119 | 965 | 1235 |
| 686 | Radio frequency | 7 | 119 | 269 | 333 |
| 688 | Securities | 8 | 118 | 98 | 288 |
| 689 | Fire ecology | 1 | 116 | 133 | 65 |
| 689 | gene therapy | 2 | 116 | 951 | 815 |
| 691 | Landscape Ecology | 2 | 115 | 542 | 467 |
| 691 | Microbial Genetics | 3 | 115 | 322 | 311 |
| 691 | economic indicators | 5 | 115 | 46 | 38 |
| 691 | water resources | 4 | 115 | 198 | 126 |
| 691 | phytopathogenic bacteria | 3 | 115 | 221 | 284 |
| 691 | Reproduction | 6 | 115 | 1413 | 1496 |
| 697 | Social Psychology | 10 | 114 | 1160 | 1757 |
| 697 | Telecommunications | 7 | 114 | 398 | 452 |
| 697 | Planets | 6 | 114 | 937 | 1280 |
| 700 | DNA polymerases | 1 | 113 | 550 | 588 |
| 701 | Paleoclimatology | 8 | 112 | 660 | 953 |
| 701 | Paleoecology | 8 | 112 | 655 | 892 |
| 701 | Geriatric Psychiatry | 3 | 112 | 843 | 746 |
| 701 | Paleogeography | 8 | 112 | 566 | 827 |
| 701 | Primary health care | 2 | 112 | 1698 | 1137 |
| 701 | Mental Health Services | 3 | 112 | 1011 | 849 |
| 707 | patents | 3 | 111 | 37 | 18 |
| 707 | plasma | 5 | 111 | 59 | 58 |
| 707 | brain mapping | 4 | 111 | 492 | 600 |
| 710 | elasticity | 2 | 110 | 301 | 167 |
| 711 | Traffic Engineering | 5 | 108 | 283 | 416 |
| 711 | Database Management | 7 | 108 | 489 | 634 |
| 711 | Wildlife conservation | 4 | 108 | 853 | 1059 |
| 714 | Clinical Immunology | 5 | 107 | 701 | 840 |
| 714 | Nuclear Fusion | 9 | 107 | 303 | 366 |
| 714 | fusion reactors | 9 | 107 | 198 | 193 |
| 717 | Developmental Immunology | 4 | 106 | 479 | 595 |
| 717 | Europe | 9 | 106 | 1612 | 1930 |
| 717 | gastrointestinal tract | 2 | 106 | 387 | 430 |
| 720 | Drying | 8 | 105 | 176 | 314 |
| 720 | Malaria | 2 | 105 | 708 | 524 |
| 722 | Surgery | 7 | 104 | 860 | 1156 |
| 722 | Corporate governance | 6 | 104 | 348 | 614 |
| 722 | Strategic planning | 3 | 104 | 792 | 708 |
| 725 | Neuroimaging | 7 | 103 | 158 | 200 |
| 725 | Animal Behavior | 1 | 103 | 2280 | 1622 |
| 725 | Ethology | 1 | 103 | 1820 | 1404 |
| 725 | Geodynamics | 7 | 103 | 571 | 780 |
| 725 | optical instruments | 7 | 103 | 185 | 261 |
| 725 | optical phenomena | 7 | 103 | 42 | 98 |
| 725 | body temperature | 7 | 103 | 253 | 398 |
| 732 | Calculus of Variations | 6 | 102 | 376 | 352 |
| 733 | Computational Linguistics | 3 | 100 | 565 | 245 |
| 733 | Microbial Metabolism | 3 | 100 | 154 | 224 |
| 733 | Documentation | 2 | 100 | 349 | 216 |
| 733 | Human Resources | 3 | 100 | 460 | 590 |
| 737 | Human Geography | 8 | 99 | 637 | 810 |
| 738 | Ergonomics | 6 | 98 | 623 | 695 |
| 738 | biomimicry | 3 | 98 | 172 | 173 |
| 738 | Minerals | 8 | 98 | 358 | 676 |
| 738 | drug evaluation | 11 | 98 | 563 | 1086 |
| 742 | drug therapy | 4 | 97 | 1331 | 1384 |
| 743 | Business Ethics | 3 | 96 | 989 | 1267 |
| 743 | Agriculture | 15 | 96 | 791 | 1655 |
| 745 | Carcinogenesis | 6 | 95 | 565 | 900 |
| 745 | biochemical markers | 6 | 95 | 352 | 491 |
| 747 | foods | 1 | 94 | 281 | 109 |
| 747 | arthritis | 2 | 94 | 970 | 996 |
| 747 | Money | 5 | 94 | 214 | 409 |
| 750 | soil management | 5 | 93 | 380 | 652 |
| 750 | Risk assessment | 11 | 93 | 156 | 440 |
| 750 | Chemical processes | 8 | 93 | 268 | 434 |
| 753 | Microfabrication | 11 | 92 | 106 | 280 |
| 754 | soil pollution | 10 | 90 | 152 | 469 |
| 754 | Cardiovascular diseases | 8 | 90 | 817 | 1101 |
| 754 | Electrophysiology | 8 | 90 | 524 | 680 |
| 754 | Neurons | 3 | 90 | 502 | 891 |
| 758 | Microfluidics | 7 | 89 | 97 | 224 |
| 758 | Enzyme | 7 | 89 | 268 | 650 |
| 758 | mathematical concepts | 6 | 89 | 224 | 244 |
| 761 | Software Maintenance | 3 | 88 | 166 | 108 |
| 761 | Mobile genetic elements | 4 | 88 | 52 | 105 |
| 761 | Spectroscopy | 7 | 88 | 58 | 23 |
| 764 | tillage | 4 | 87 | 323 | 582 |
| 765 | Crystallography | 9 | 85 | 993 | 880 |
| 766 | Marine Pollution | 4 | 84 | 995 | 1290 |
| 767 | Rural Development | 2 | 83 | 637 | 530 |
| 768 | Soil biology | 2 | 82 | 974 | 1065 |
| 768 | Biomarkers | 5 | 82 | 247 | 321 |
| 768 | India | 7 | 82 | 803 | 707 |
| 771 | Feminism | 1 | 81 | 1013 | 426 |
| 771 | women | 1 | 81 | 1473 | 527 |
| 773 | drug resistance | 3 | 80 | 659 | 740 |
| 773 | Information society | 4 | 80 | 86 | 135 |
| 775 | Neuropsychiatry | 4 | 79 | 640 | 760 |
| 775 | Radiation Oncology | 9 | 79 | 139 | 327 |
| 775 | Naval Architecture | 7 | 79 | 167 | 233 |
| 775 | Flexible manufacturing systems | 8 | 79 | 159 | 443 |
| 779 | Dermatology | 2 | 78 | 1489 | 1230 |
| 779 | Laser therapy | 2 | 78 | 549 | 305 |
| 781 | Infections | 5 | 77 | 714 | 1099 |
| 781 | visualization | 20 | 77 | 470 | 788 |
| 781 | Plasma polymerization | 7 | 77 | 137 | 264 |
| 781 | telemarketing | 1 | 77 | 230 | 148 |
| 785 | Organizational learning | 10 | 76 | 71 | 330 |
| 785 | Knowledge management | 11 | 76 | 46 | 254 |
| 785 | Raman spectroscopy | 5 | 76 | 591 | 794 |
| 785 | Emulsions | 7 | 76 | 170 | 241 |
| 789 | Food Preservation | 5 | 75 | 605 | 638 |
| 789 | Algorithms | 9 | 75 | 341 | 582 |
| 789 | Plate Tectonics | 8 | 75 | 109 | 256 |
| 789 | Corporate Social Responsibility | 5 | 75 | 153 | 552 |
| 789 | environmental auditing | 5 | 75 | 162 | 558 |
| 789 | industrial relations | 1 | 75 | 1315 | 700 |
| 789 | civil service | 4 | 75 | 306 | 366 |
| 796 | Microcirculation | 2 | 74 | 543 | 476 |
| 796 | Enteral nutrition | 3 | 74 | 705 | 877 |
| 796 | Parenteral nutrition | 3 | 74 | 810 | 970 |
| 796 | Blood vessels | 2 | 74 | 462 | 405 |
| 796 | Breeding | 3 | 74 | 1078 | 1121 |
| 801 | Environmental Geochemistry | 6 | 73 | 263 | 582 |
| 801 | Financial Institutions | 2 | 73 | 527 | 411 |
| 801 | Learning | 2 | 73 | 1353 | 1221 |
| 804 | Land Use Planning | 2 | 72 | 479 | 473 |
| 804 | Behavioral research | 7 | 72 | 278 | 416 |
| 804 | Cell cycle | 3 | 72 | 276 | 310 |
| 804 | cell proliferation | 3 | 72 | 305 | 329 |
| 804 | reasoning | 3 | 72 | 426 | 384 |
| 804 | Groundwater | 8 | 72 | 260 | 560 |
| 810 | analysis | 3 | 71 | 354 | 416 |
| 811 | Linguistics | 5 | 69 | 1028 | 1040 |
| 811 | phase diagrams | 5 | 69 | 93 | 129 |
| 813 | Number Theory | 10 | 68 | 403 | 446 |
| 813 | Genetic regulation | 8 | 68 | 562 | 1117 |
| 815 | Emergency Nursing | 1 | 67 | 289 | 113 |
| 815 | Photogrammetry | 9 | 67 | 384 | 368 |
| 817 | Expert Systems | 12 | 65 | 15 | 182 |
| 817 | Sales management | 1 | 65 | 417 | 443 |
| 817 | selling | 1 | 65 | 417 | 443 |
| 820 | Health insurance | 3 | 64 | 384 | 410 |
| 820 | Taste | 2 | 64 | 379 | 340 |
| 820 | smell | 2 | 64 | 379 | 340 |
| 823 | Ubiquitous computing | 4 | 63 | 193 | 138 |
| 823 | Parasitic Diseases | 1 | 63 | 2312 | 1751 |
| 825 | Orthopedics | 7 | 62 | 851 | 1198 |
| 825 | Molecular Genetics | 2 | 62 | 1755 | 1924 |
| 825 | Population Genetics | 2 | 62 | 1211 | 1333 |
| 825 | Molecular ecology | 2 | 62 | 1066 | 1339 |
| 825 | Chemical structure | 7 | 62 | 230 | 371 |
| 830 | Oceanography | 4 | 61 | 1294 | 1558 |
| 830 | Applied Linguistics | 3 | 61 | 642 | 539 |
| 830 | Clinical Biochemistry | 4 | 61 | 887 | 1080 |
| 830 | Sustainable agriculture | 6 | 61 | 403 | 811 |
| 830 | carcinogens | 4 | 61 | 724 | 1043 |
| 835 | Chemical kinetics | 11 | 60 | 283 | 567 |
| 835 | Fossil fuels | 7 | 60 | 28 | 17 |
| 837 | Systems Theory | 11 | 59 | 108 | 263 |
| 837 | Inventory Control | 2 | 59 | 88 | 129 |
| 837 | Depression | 3 | 59 | 303 | 576 |
| 837 | Virtual reality | 6 | 59 | 228 | 477 |
| 837 | Adsorption | 4 | 59 | 151 | 248 |
| 837 | Anxiety Disorders | 3 | 59 | 454 | 745 |
| 837 | Radio wave propagation | 13 | 59 | 274 | 646 |
| 837 | Anxiety | 3 | 59 | 454 | 742 |
| 837 | Library Science | 2 | 59 | 1171 | 665 |
| 846 | Architecture | 4 | 58 | 464 | 412 |
| 846 | Parasitology | 3 | 58 | 2020 | 2018 |
| 846 | Elderly | 4 | 58 | 987 | 760 |
| 846 | older people | 4 | 58 | 1277 | 1202 |
| 846 | Industry | 2 | 58 | 247 | 512 |
| 851 | Educational Psychology | 3 | 57 | 1342 | 1430 |
| 851 | Rheology | 3 | 57 | 565 | 614 |
| 853 | Climatology | 6 | 56 | 1175 | 1821 |
| 853 | Higher Education | 4 | 56 | 514 | 646 |
| 853 | Stochastic Processes | 7 | 56 | 545 | 863 |
| 853 | Histocompatibility Testing | 3 | 56 | 440 | 493 |
| 853 | Cardiovascular system | 6 | 56 | 808 | 1384 |
| 853 | transport vesicles | 2 | 56 | 275 | 505 |
| 859 | toxicity testing | 3 | 55 | 576 | 790 |
| 860 | blood substitutes | 3 | 54 | 70 | 67 |
| 860 | Obesity | 5 | 54 | 1253 | 1940 |
| 860 | innovation | 1 | 54 | 1023 | 939 |
| 860 | research and development | 1 | 54 | 597 | 509 |
| 860 | artificial cells | 3 | 54 | 98 | 78 |
| 860 | tests | 3 | 54 | 183 | 307 |
| 860 | Chemical reactors | 15 | 54 | 18 | 67 |
| 867 | Palliative Care | 2 | 53 | 880 | 727 |
| 867 | hospice care | 2 | 53 | 616 | 516 |
| 867 | data protection | 6 | 53 | 324 | 579 |
| 870 | Diagnostic microbiology | 1 | 52 | 1214 | 1326 |
| 870 | Finite Element Method | 4 | 52 | 275 | 394 |
| 870 | anesthesia | 11 | 52 | 170 | 398 |
| 873 | Pharmacogenetics | 6 | 51 | 531 | 998 |
| 873 | microwave antennas | 10 | 51 | 134 | 338 |
| 873 | Korea | 8 | 51 | 123 | 239 |
| 873 | Arthropods | 4 | 51 | 165 | 238 |
| 877 | Machine Learning | 4 | 50 | 271 | 408 |
| 877 | Drug targeting | 3 | 50 | 286 | 582 |
| 877 | food contamination | 4 | 50 | 843 | 1125 |
| 877 | Gene expression regulation | 7 | 50 | 519 | 1066 |
| 877 | Earthquakes | 7 | 50 | 188 | 357 |
| 877 | Cell metabolism | 3 | 50 | 601 | 1008 |
| 883 | Landscape Architecture | 5 | 49 | 76 | 81 |
| 883 | Telemedicine | 2 | 49 | 401 | 479 |
| 883 | industrial hygiene | 2 | 49 | 1190 | 861 |
| 886 | Historic Preservation | 4 | 48 | 88 | 121 |
| 886 | Geodesy | 4 | 48 | 630 | 865 |
| 886 | Metabolic diseases | 4 | 48 | 1448 | 2055 |
| 886 | Invertebrates | 7 | 48 | 324 | 710 |
| 890 | Forensic Genetics | 2 | 47 | 278 | 335 |
| 890 | Cosmology | 3 | 47 | 627 | 681 |
| 890 | disaster relief | 2 | 47 | 244 | 303 |
| 893 | Cross-Cultural Studies | 4 | 46 | 594 | 921 |
| 893 | Visual Perception | 5 | 46 | 1002 | 1466 |
| 893 | cross-cultural comparison | 4 | 46 | 436 | 642 |
| 893 | Attention | 5 | 46 | 1045 | 1556 |
| 893 | Perception | 5 | 46 | 1125 | 1624 |
| 893 | Cerebral cortex | 5 | 46 | 630 | 1081 |
| 899 | Biopharmaceutics | 4 | 45 | 860 | 1348 |
| 899 | Information visualization | 8 | 45 | 60 | 159 |
| 899 | Biological Systems | 4 | 45 | 419 | 729 |
| 899 | geological modeling | 1 | 45 | 939 | 602 |
| 903 | Ophthalmology | 6 | 44 | 1098 | 1625 |
| 903 | Planetary Science | 1 | 44 | 761 | 515 |
| 903 | nuclear astrophysics | 2 | 44 | 579 | 595 |
| 903 | Biodiversity conservation | 3 | 44 | 1397 | 1895 |
| 903 | Nanotubes | 4 | 44 | 134 | 159 |
| 903 | stocks | 3 | 44 | 117 | 332 |
| 909 | Databases | 2 | 43 | 436 | 439 |
| 909 | Antioxidants | 4 | 43 | 607 | 1121 |
| 909 | Gastrointestinal diseases | 8 | 43 | 294 | 734 |
| 912 | Statistical Mechanics | 3 | 42 | 633 | 632 |
| 912 | Formal Languages | 2 | 42 | 393 | 227 |
| 912 | flavor | 1 | 42 | 405 | 329 |
| 915 | Asthma | 1 | 41 | 958 | 721 |
| 915 | Orthopedic Surgery | 5 | 41 | 525 | 792 |
| 915 | Immunochemistry | 7 | 41 | 558 | 1115 |
| 918 | Geometry | 9 | 40 | 688 | 946 |
| 918 | Morphogenesis | 2 | 40 | 76 | 169 |
| 918 | Organogenesis | 2 | 40 | 40 | 125 |
| 918 | Infrared spectroscopy | 1 | 40 | 684 | 508 |
| 918 | Diet | 4 | 40 | 1451 | 2401 |
| 918 | Soviet Union | 6 | 40 | 390 | 519 |
| 918 | population geography | 4 | 40 | 317 | 561 |
| 918 | Women's health | 2 | 40 | 1442 | 1434 |
| 926 | Emergency Medical Services | 6 | 39 | 385 | 785 |
| 926 | Algebra | 5 | 39 | 1213 | 1167 |
| 926 | Pharmacokinetics | 4 | 39 | 672 | 1220 |
| 926 | Greenhouse gases | 2 | 39 | 336 | 529 |
| 926 | Sleep Disorders | 2 | 39 | 1442 | 1466 |
| 926 | Algal blooms | 3 | 39 | 261 | 501 |
| 926 | Cyanobacteria | 3 | 39 | 261 | 501 |
| 926 | food industry | 7 | 39 | 370 | 995 |
| 926 | Speech | 3 | 39 | 844 | 1115 |
| 926 | Sleep | 2 | 39 | 1474 | 1493 |
| 926 | microalgae | 3 | 39 | 261 | 501 |
| 937 | Health | 6 | 38 | 1361 | 2300 |
| 937 | Homeostasis | 1 | 38 | 583 | 849 |
| 937 | food handling | 3 | 38 | 874 | 1476 |
| 937 | Biomolecules | 3 | 38 | 438 | 778 |
| 941 | Obstetrics | 5 | 37 | 1419 | 2036 |
| 941 | ecosystem | 3 | 37 | 1192 | 1810 |
| 941 | scholarly publishing | 2 | 37 | 151 | 158 |
| 941 | North America | 6 | 37 | 492 | 934 |
| 945 | Biogeography | 5 | 36 | 718 | 1390 |
| 945 | Neurosurgery | 7 | 36 | 573 | 1064 |
| 945 | Food Microbiology | 1 | 36 | 1687 | 1785 |
| 945 | Alloys | 7 | 36 | 128 | 238 |
| 945 | Auditing | 1 | 36 | 645 | 582 |
| 950 | Cheminformatics | 3 | 35 | 306 | 587 |
| 950 | traffic safety | 3 | 35 | 278 | 424 |
| 952 | Mitochondria | 1 | 34 | 501 | 528 |
| 952 | ovary | 2 | 34 | 250 | 365 |
| 952 | administrative agencies | 5 | 34 | 193 | 395 |
| 952 | pain | 2 | 34 | 1293 | 1485 |
| 952 | drug toxicity | 3 | 34 | 470 | 904 |
| 952 | Menopause | 2 | 34 | 362 | 449 |
| 958 | Urban Transportation | 1 | 33 | 295 | 182 |
| 958 | Radioisotopes | 5 | 33 | 779 | 1094 |
| 958 | personality | 3 | 33 | 1423 | 1982 |
| 958 | medical education | 4 | 33 | 1318 | 1857 |
| 958 | Bone diseases | 2 | 33 | 537 | 716 |
| 958 | computable functions | 2 | 33 | 16 | 18 |
| 958 | Pregnancy | 4 | 33 | 655 | 1090 |
| 965 | Psycholinguistics | 5 | 32 | 706 | 1236 |
| 965 | Multivariate Analysis | 2 | 32 | 682 | 721 |
| 965 | Volcanoes | 1 | 32 | 449 | 459 |
| 965 | Scandinavia | 3 | 32 | 567 | 774 |
| 965 | Muscles | 4 | 32 | 620 | 1074 |
| 970 | Transportation Engineering | 5 | 31 | 225 | 515 |
| 970 | Integrative Medicine | 3 | 31 | 267 | 331 |
| 970 | Wetland ecology | 2 | 31 | 573 | 687 |
| 970 | Wetland conservation | 2 | 31 | 406 | 534 |
| 970 | Evolution equations | 4 | 31 | 122 | 186 |
| 970 | police | 1 | 31 | 617 | 450 |
| 970 | Wetlands | 2 | 31 | 419 | 537 |
| 970 | Soil ecology | 3 | 31 | 755 | 1271 |
| 978 | Water quality | 1 | 30 | 523 | 445 |
| 978 | Behavioral Finance | 1 | 30 | 143 | 139 |
| 978 | Superconductivity | 3 | 30 | 441 | 558 |
| 978 | Water chemistry | 1 | 30 | 761 | 610 |
| 978 | world | 2 | 30 | 833 | 1277 |
| 983 | Sarcopenia | 3 | 29 | 346 | 720 |
| 983 | economic development projects | 1 | 29 | 390 | 341 |
| 983 | Philippines | 1 | 29 | 246 | 192 |
| 983 | Liquid chromatography | 3 | 29 | 506 | 573 |
| 987 | Agricultural Biotechnology | 3 | 28 | 317 | 306 |
| 987 | Crystallization | 2 | 28 | 607 | 557 |
| 987 | Probiotics | 3 | 28 | 150 | 447 |
| 987 | Parkinson's disease | 1 | 28 | 406 | 456 |
| 987 | Safety management | 4 | 28 | 459 | 876 |
| 987 | Capitalism | 1 | 28 | 383 | 296 |
| 993 | Pediatrics | 3 | 27 | 1754 | 2345 |
| 993 | Preoperative Care | 4 | 27 | 43 | 117 |
| 993 | perioperative care | 4 | 27 | 42 | 117 |
| 993 | Freezing | 2 | 27 | 363 | 383 |
| 993 | Therapeutics | 4 | 27 | 1160 | 1902 |
| 993 | Combinatorial analysis | 5 | 27 | 813 | 963 |
| 999 | Coastal zone management | 3 | 26 | 651 | 1102 |
| 999 | Emergency Medicine | 5 | 26 | 883 | 1363 |