| 1 | Materials | 4,423 | 168.0K | 6 | 28 |
| 2 | Materials Science | 1,926 | 81.3K | 16 | 37 |
| 3 | Composite Materials | 1,470 | 71.7K | 2 | 2 |
| 4 | Chemistry | 1,214 | 69.4K | 336 | 315 |
| 5 | Nanotechnology | 1,201 | 63.8K | 62 | 90 |
| 6 | Physics | 1,661 | 50.0K | 257 | 501 |
| 7 | Metals | 880 | 44.0K | 4 | 7 |
| 8 | Biocompatible Materials | 629 | 37.0K | 69 | 71 |
| 9 | Optical materials | 544 | 36.6K | 33 | 31 |
| 10 | Chemical Engineering | 638 | 33.5K | 129 | 99 |
| 11 | Artificial Intelligence | 841 | 32.2K | 7 | 34 |
| 12 | Biology | 403 | 31.1K | 604 | 592 |
| 13 | Signal Processing | 889 | 30.2K | 13 | 41 |
| 14 | Polymers | 910 | 27.8K | 80 | 106 |
| 15 | Metallurgy | 645 | 27.8K | 20 | 27 |
| 16 | Image Processing | 754 | 27.2K | 9 | 17 |
| 17 | Manufacturing Processes | 868 | 26.9K | 6 | 4 |
| 18 | Carbon | 335 | 26.8K | 3 | 2 |
| 19 | Nanostructured Materials | 585 | 25.7K | 43 | 59 |
| 20 | Biochemical Engineering | 400 | 22.4K | 71 | 121 |
| 21 | nanoscience | 347 | 22.1K | 76 | 88 |
| 22 | Science | 498 | 21.1K | 563 | 740 |
| 23 | Automation | 413 | 17.7K | 29 | 67 |
| 24 | polymerization | 670 | 16.6K | 80 | 141 |
| 25 | vibration | 372 | 16.5K | 5 | 6 |
| 26 | Ceramic materials | 456 | 16.3K | 1 | 1 |
| 27 | Colloids | 446 | 16.2K | 105 | 128 |
| 28 | Structural dynamics | 308 | 16.1K | 7 | 9 |
| 29 | Systems Engineering | 548 | 16.1K | 5 | 4 |
| 30 | Surface Chemistry | 431 | 14.7K | 98 | 122 |
| 31 | Mechanical Engineering | 721 | 14.6K | 9 | 9 |
| 32 | Catalysis | 267 | 13.7K | 306 | 269 |
| 33 | Optics | 592 | 13.4K | 148 | 150 |
| 34 | Analytical Chemistry | 293 | 13.0K | 237 | 187 |
| 35 | Molecular Biology | 278 | 12.2K | 757 | 753 |
| 36 | Production Engineering | 596 | 12.0K | 8 | 11 |
| 37 | Cybernetics | 208 | 11.8K | 21 | 27 |
| 38 | Wireless Communication Systems | 431 | 11.7K | 34 | 70 |
| 39 | Neural circuitry | 444 | 11.4K | 10 | 25 |
| 40 | Electronics | 327 | 11.3K | 139 | 125 |
| 41 | Mathematics | 840 | 11.2K | 162 | 185 |
| 42 | Nanoparticles | 249 | 11.0K | 35 | 42 |
| 43 | Biotechnology | 217 | 10.3K | 472 | 501 |
| 44 | Biomedical Engineering | 437 | 10.3K | 130 | 248 |
| 45 | China | 605 | 10.1K | 42 | 47 |
| 46 | Plastics | 221 | 9.2K | 15 | 6 |
| 47 | Photonics | 241 | 9.1K | 87 | 114 |
| 48 | Ceramics | 278 | 8.9K | 22 | 29 |
| 49 | Power Electronics | 208 | 8.8K | 24 | 46 |
| 50 | Tribology | 293 | 8.7K | 13 | 12 |
| 51 | Radio | 150 | 8.6K | 84 | 76 |
| 52 | Metallography | 321 | 8.6K | 5 | 4 |
| 53 | Biochemistry | 209 | 8.4K | 1,164 | 1,037 |
| 54 | Magnetic Materials | 154 | 8.4K | 52 | 26 |
| 55 | Ocean Engineering | 333 | 8.2K | 34 | 44 |
| 56 | Industrial Safety | 204 | 7.8K | 3 | 8 |
| 57 | Research | 332 | 7.7K | 634 | 792 |
| 58 | fuel cells | 123 | 7.7K | 63 | 80 |
| 59 | Bioengineering | 185 | 7.3K | 299 | 423 |
| 60 | Solid State Physics | 364 | 7.3K | 321 | 425 |
| 61 | Electrochemistry | 216 | 7.3K | 395 | 269 |
| 62 | Engineering | 413 | 7.2K | 70 | 126 |
| 63 | Fracture mechanics | 392 | 7.2K | 7 | 29 |
| 64 | mass transfer | 225 | 7.2K | 34 | 60 |
| 65 | Control Theory | 334 | 7.1K | 16 | 46 |
| 66 | Energy Conversion | 111 | 7.0K | 72 | 130 |
| 67 | Biophysics | 170 | 7.0K | 729 | 620 |
| 68 | plasticity | 99 | 6.9K | 3 | 6 |
| 69 | Bioinformatics | 175 | 6.5K | 75 | 159 |
| 70 | Computer Vision | 153 | 6.4K | 23 | 64 |
| 71 | Metallic Glasses | 183 | 6.4K | 4 | 3 |
| 72 | Renewable Energy Sources | 71 | 6.2K | 295 | 264 |
| 73 | Structural optimization | 223 | 6.2K | 2 | 6 |
| 74 | Technology | 334 | 6.1K | 111 | 223 |
| 75 | computer networks | 229 | 6.1K | 58 | 94 |
| 76 | Information Science | 222 | 6.1K | 32 | 92 |
| 77 | actuators | 186 | 6.0K | 63 | 84 |
| 77 | transducers | 186 | 6.0K | 63 | 84 |
| 79 | Statistical physics | 289 | 5.9K | 283 | 382 |
| 80 | miniaturization | 131 | 5.9K | 118 | 192 |
| 81 | extraterrestrial environment | 264 | 5.9K | 6 | 5 |
| 82 | astronomical phenomena | 262 | 5.9K | 6 | 5 |
| 83 | Glass | 178 | 5.8K | 37 | 43 |
| 83 | pottery | 178 | 5.8K | 36 | 43 |
| 85 | Intelligent Transportation Systems | 148 | 5.8K | 30 | 32 |
| 86 | System analysis | 237 | 5.7K | 31 | 63 |
| 87 | Robotics | 206 | 5.7K | 27 | 57 |
| 88 | Multimedia Systems | 285 | 5.6K | 16 | 23 |
| 89 | Heat Exchangers | 204 | 5.4K | 20 | 35 |
| 90 | Telecommunication | 149 | 5.3K | 207 | 234 |
| 91 | Detectors | 301 | 5.3K | 9 | 10 |
| 92 | Combustion | 257 | 5.3K | 27 | 72 |
| 93 | Medicine | 206 | 5.2K | 1,078 | 1,322 |
| 94 | Structural Engineering | 202 | 5.2K | 67 | 93 |
| 95 | Medical Laboratory Science | 27 | 5.2K | 537 | 150 |
| 96 | Radio waves | 135 | 5.1K | 47 | 54 |
| 97 | Engineering Mathematics | 266 | 5.1K | 14 | 40 |
| 98 | internet | 192 | 5.1K | 22 | 55 |
| 99 | Microelectronics | 127 | 5.1K | 125 | 192 |
| 100 | Energy Policy | 152 | 5.1K | 120 | 228 |
| 101 | Internet of Things | 187 | 5.0K | 22 | 49 |
| 102 | Information Technology | 134 | 4.9K | 61 | 105 |
| 103 | Industrial Engineering | 127 | 4.8K | 87 | 74 |
| 104 | Computational Biology | 131 | 4.1K | 177 | 289 |
| 105 | Microbiology | 81 | 4.1K | 1,172 | 1,069 |
| 106 | Green Chemistry | 91 | 4.0K | 138 | 186 |
| 107 | Numerical Analysis | 224 | 4.0K | 24 | 63 |
| 108 | Electromagnetism | 138 | 3.9K | 22 | 22 |
| 109 | Sustainable Engineering | 83 | 3.8K | 103 | 112 |
| 110 | Environmental Chemistry | 45 | 3.7K | 303 | 270 |
| 111 | Mobile Computing | 140 | 3.7K | 19 | 43 |
| 112 | Energy Storage | 80 | 3.6K | 79 | 87 |
| 113 | Solitons | 197 | 3.6K | 1 | 14 |
| 113 | Fractals | 197 | 3.6K | 1 | 14 |
| 113 | Chaos | 197 | 3.6K | 1 | 14 |
| 116 | Radiography | 44 | 3.5K | 116 | 98 |
| 117 | multimedia | 115 | 3.5K | 17 | 22 |
| 117 | Interactive multimedia | 115 | 3.5K | 17 | 23 |
| 119 | Measurement | 136 | 3.4K | 27 | 31 |
| 120 | energy conservation | 70 | 3.3K | 212 | 280 |
| 121 | Nanostructures | 101 | 3.2K | 81 | 216 |
| 122 | Ecology | 96 | 3.1K | 1,036 | 1,291 |
| 123 | Boundary Value Problems | 123 | 3.1K | 12 | 14 |
| 124 | Antenna Arrays | 116 | 3.1K | 11 | 14 |
| 125 | Mathematical Physics | 181 | 3.1K | 235 | 336 |
| 126 | Diagnostic Imaging | 82 | 3.1K | 190 | 172 |
| 127 | lasers | 125 | 3.0K | 160 | 140 |
| 128 | Environment | 65 | 3.0K | 948 | 1,154 |
| 129 | Condensed Matter | 173 | 2.9K | 505 | 678 |
| 130 | health planning | 180 | 2.7K | 35 | 92 |
| 131 | Natural history | 26 | 2.7K | 993 | 1,262 |
| 132 | management | 99 | 2.7K | 421 | 681 |
| 133 | Pollution | 75 | 2.6K | 1,039 | 1,265 |
| 134 | Smart Materials | 106 | 2.6K | 27 | 43 |
| 135 | Nonlinear Dynamics | 110 | 2.5K | 258 | 324 |
| 136 | Biosensors | 36 | 2.5K | 204 | 182 |
| 137 | Telecommunication Systems | 132 | 2.5K | 33 | 43 |
| 138 | Fluid Mechanics | 144 | 2.4K | 55 | 158 |
| 139 | Structural design | 95 | 2.4K | 23 | 38 |
| 140 | Electrical Engineering | 156 | 2.4K | 262 | 251 |
| 141 | Geophysics | 139 | 2.4K | 481 | 708 |
| 142 | Fuzzy systems | 146 | 2.4K | 10 | 32 |
| 143 | Mechatronics | 58 | 2.3K | 58 | 48 |
| 144 | Communication | 50 | 2.3K | 373 | 279 |
| 145 | Semiconductors | 124 | 2.2K | 113 | 125 |
| 146 | Nanochemistry | 90 | 2.2K | 17 | 16 |
| 147 | Nervous system | 78 | 2.1K | 335 | 492 |
| 148 | Energy Harvesting | 26 | 2.1K | 79 | 100 |
| 149 | Computer Graphics | 102 | 2.1K | 140 | 225 |
| 150 | machinery | 77 | 2.0K | 23 | 24 |
| 151 | impact | 69 | 2.0K | 10 | 28 |
| 152 | Solid State Chemistry | 94 | 2.0K | 297 | 319 |
| 153 | coal | 67 | 1.9K | 165 | 250 |
| 154 | Microwaves | 157 | 1.9K | 70 | 159 |
| 155 | structural stability | 53 | 1.9K | 8 | 20 |
| 156 | Nonlinear systems | 95 | 1.9K | 8 | 19 |
| 157 | Entropy | 117 | 1.9K | 3 | 7 |
| 158 | Environmental Management | 53 | 1.9K | 481 | 643 |
| 159 | Computer-Aided Design | 97 | 1.8K | 40 | 113 |
| 160 | Pharmacology | 59 | 1.8K | 1,163 | 1,143 |
| 161 | Earthquake Engineering | 63 | 1.8K | 218 | 249 |
| 162 | electric vehicles | 66 | 1.8K | 19 | 17 |
| 163 | Building Materials | 46 | 1.8K | 330 | 414 |
| 164 | plasma spraying | 58 | 1.8K | 5 | 13 |
| 165 | energy development | 50 | 1.7K | 29 | 179 |
| 166 | Cell Biology | 40 | 1.7K | 1,023 | 1,132 |
| 167 | Environmental Health | 66 | 1.7K | 1,008 | 1,333 |
| 168 | Nutrition | 32 | 1.7K | 1,181 | 928 |
| 169 | Operations Research | 92 | 1.7K | 235 | 436 |
| 170 | Food | 32 | 1.7K | 855 | 653 |
| 171 | genome | 29 | 1.6K | 343 | 430 |
| 172 | Human-Computer Interaction | 83 | 1.6K | 47 | 154 |
| 173 | Industrial Microbiology | 26 | 1.5K | 483 | 402 |
| 174 | Soft Condensed Matter | 52 | 1.5K | 172 | 188 |
| 175 | Light | 6 | 1.5K | 629 | 318 |
| 176 | soil microbiology | 15 | 1.5K | 592 | 434 |
| 177 | Bioelectronics | 23 | 1.5K | 255 | 254 |
| 178 | environmental pollution | 54 | 1.5K | 963 | 1,263 |
| 179 | Adaptive control systems | 60 | 1.4K | 17 | 12 |
| 180 | Computer Science | 93 | 1.4K | 79 | 144 |
| 181 | biopolymers | 41 | 1.4K | 222 | 211 |
| 182 | biocatalysis | 5 | 1.4K | 105 | 100 |
| 182 | Homogeneous catalysis | 5 | 1.4K | 105 | 100 |
| 182 | Heterogeneous catalysis | 5 | 1.4K | 105 | 100 |
| 185 | Water | 35 | 1.3K | 641 | 772 |
| 186 | Medical Physics | 38 | 1.3K | 393 | 384 |
| 187 | Genomics | 59 | 1.3K | 532 | 713 |
| 188 | Environmental Policy | 25 | 1.3K | 1,005 | 932 |
| 189 | Cytology | 36 | 1.3K | 1,140 | 1,276 |
| 190 | Aerospace Engineering | 71 | 1.3K | 7 | 4 |
| 191 | Optical Communications | 66 | 1.3K | 45 | 56 |
| 192 | Soil biology | 11 | 1.3K | 448 | 286 |
| 193 | Signal Transduction | 6 | 1.3K | 909 | 394 |
| 194 | Fluid Dynamics | 69 | 1.3K | 106 | 178 |
| 195 | Crystal growth | 55 | 1.3K | 66 | 129 |
| 196 | Business Ethics | 18 | 1.2K | 283 | 295 |
| 197 | Membranes | 23 | 1.2K | 601 | 538 |
| 198 | Nuclear Physics | 61 | 1.2K | 1,216 | 1,324 |
| 199 | Mechanics | 101 | 1.1K | 40 | 150 |
| 200 | Thermodynamics | 102 | 1.1K | 35 | 79 |
| 201 | Solar Energy | 26 | 1.1K | 387 | 403 |
| 202 | Environmental monitoring | 32 | 1.1K | 1,122 | 1,280 |
| 203 | Evolutionary Computation | 20 | 1.0K | 79 | 129 |
| 204 | Intelligent Control Systems | 96 | 972 | 14 | 52 |
| 205 | Combinatorial chemistry | 16 | 969 | 214 | 194 |
| 206 | Physiology | 26 | 962 | 1,358 | 1,265 |
| 207 | Dynamics | 90 | 960 | 70 | 189 |
| 208 | Production Management | 22 | 924 | 325 | 470 |
| 208 | Nonlinear mechanics | 61 | 924 | 5 | 24 |
| 210 | Sustainable Development | 25 | 922 | 429 | 530 |
| 211 | Transportation | 21 | 906 | 533 | 458 |
| 212 | Materials Engineering | 84 | 904 | 4 | 25 |
| 213 | particles | 37 | 876 | 92 | 108 |
| 214 | Remote Sensing | 27 | 864 | 331 | 188 |
| 215 | Nondestructive testing | 35 | 853 | 66 | 86 |
| 216 | Flexible electronics | 11 | 850 | 11 | 8 |
| 217 | Data Mining | 32 | 837 | 101 | 194 |
| 218 | International Finance | 20 | 833 | 563 | 422 |
| 219 | Technological Innovations | 26 | 826 | 136 | 178 |
| 220 | Friction | 28 | 825 | 5 | 5 |
| 221 | mathematical analysis | 96 | 808 | 294 | 539 |
| 222 | Plant physiology | 11 | 795 | 1,122 | 849 |
| 223 | probabilities | 65 | 776 | 183 | 229 |
| 224 | Astrodynamics | 9 | 769 | 8 | 1 |
| 224 | enzymes | 16 | 769 | 576 | 435 |
| 226 | solar power | 10 | 766 | 347 | 221 |
| 226 | solar cells | 10 | 766 | 395 | 249 |
| 228 | Systems Biology | 24 | 761 | 411 | 392 |
| 228 | sustainability | 15 | 761 | 258 | 287 |
| 230 | environmental protection | 30 | 760 | 999 | 1,260 |
| 231 | Ultrasonics | 37 | 751 | 180 | 342 |
| 232 | Climate change | 8 | 747 | 548 | 678 |
| 233 | Spectrum analysis | 50 | 742 | 1,149 | 1,536 |
| 234 | Biodiversity conservation | 10 | 736 | 818 | 798 |
| 235 | Computational Intelligence | 30 | 735 | 61 | 65 |
| 236 | Eutrophication | 7 | 732 | 565 | 677 |
| 237 | pigments | 44 | 730 | 80 | 157 |
| 238 | finance | 17 | 728 | 989 | 728 |
| 239 | Public Health | 15 | 724 | 2,246 | 1,650 |
| 240 | Computational Fluid Dynamics | 71 | 723 | 9 | 113 |
| 241 | Social Sciences | 16 | 721 | 1,447 | 807 |
| 242 | Physical Chemistry | 30 | 717 | 664 | 799 |
| 243 | Corporate Social Responsibility | 17 | 713 | 16 | 50 |
| 243 | environmental auditing | 17 | 713 | 16 | 50 |
| 245 | Cognitive Science | 38 | 690 | 280 | 538 |
| 246 | Cancer | 22 | 684 | 1,031 | 1,196 |
| 247 | Virology | 12 | 680 | 1,249 | 1,246 |
| 248 | Computational Complexity | 59 | 673 | 27 | 73 |
| 248 | software | 23 | 673 | 180 | 282 |
| 250 | Biodiversity | 12 | 671 | 1,047 | 763 |
| 251 | Botany | 23 | 670 | 1,465 | 1,537 |
| 252 | gene mapping | 31 | 664 | 457 | 720 |
| 253 | amino acids | 8 | 662 | 250 | 86 |
| 254 | drug resistance | 1 | 645 | 1,192 | 137 |
| 255 | Chromosome mapping | 28 | 643 | 434 | 647 |
| 256 | reasoning | 14 | 639 | 67 | 38 |
| 257 | Medical Microbiology | 6 | 636 | 1,335 | 915 |
| 258 | Business | 17 | 634 | 888 | 1,011 |
| 259 | Industry | 7 | 632 | 44 | 43 |
| 260 | Computer Engineering | 32 | 631 | 79 | 93 |
| 261 | Fiber Optics | 35 | 625 | 193 | 248 |
| 262 | Process Control | 15 | 622 | 312 | 445 |
| 263 | Genetic algorithms | 9 | 615 | 133 | 168 |
| 264 | Soil Science | 12 | 613 | 889 | 704 |
| 265 | cell physiology | 17 | 608 | 540 | 668 |
| 266 | Quality Control | 38 | 606 | 222 | 467 |
| 267 | Diet | 4 | 598 | 1,522 | 894 |
| 268 | Microstructure | 38 | 597 | 61 | 62 |
| 269 | Combinatorial optimization | 17 | 596 | 74 | 13 |
| 269 | marketing | 15 | 596 | 867 | 829 |
| 271 | Sound | 63 | 584 | 90 | 227 |
| 272 | Agricultural Chemistry | 19 | 579 | 792 | 872 |
| 273 | Radio wave propagation | 39 | 572 | 85 | 110 |
| 274 | Environmental Microbiology | 5 | 567 | 1,002 | 635 |
| 275 | infrared radiation | 29 | 566 | 64 | 49 |
| 276 | Metabolism | 12 | 564 | 1,105 | 1,084 |
| 277 | Calorimetry | 45 | 561 | 108 | 194 |
| 277 | Thermal analysis | 45 | 561 | 108 | 194 |
| 279 | Microorganisms | 5 | 560 | 749 | 481 |
| 280 | Land use | 10 | 555 | 551 | 362 |
| 281 | Quantum electronics | 25 | 544 | 472 | 449 |
| 282 | Water pollution | 14 | 534 | 1,292 | 1,304 |
| 283 | Industrial Design | 23 | 525 | 25 | 43 |
| 284 | Sociology | 9 | 519 | 1,719 | 1,026 |
| 285 | Statistics | 51 | 517 | 619 | 823 |
| 286 | Environmental Engineering | 22 | 516 | 1,347 | 1,629 |
| 287 | Cognitive Radio Networks | 19 | 514 | 29 | 39 |
| 287 | Soil ecology | 13 | 514 | 283 | 303 |
| 289 | Nuclear Engineering | 39 | 513 | 337 | 349 |
| 290 | Neurology | 21 | 510 | 1,707 | 1,930 |
| 291 | Systems Analysis | 34 | 506 | 141 | 244 |
| 292 | Economic Development | 3 | 503 | 1,522 | 686 |
| 292 | Sonochemistry | 20 | 503 | 92 | 264 |
| 294 | Oncology | 9 | 500 | 1,050 | 1,175 |
| 295 | Nanophotonics | 16 | 497 | 71 | 94 |
| 296 | Cognitive neuroscience | 25 | 496 | 286 | 505 |
| 297 | Granular materials | 16 | 489 | 117 | 117 |
| 297 | human development | 24 | 489 | 187 | 326 |
| 299 | Pharmaceutical Chemistry | 24 | 487 | 1,302 | 1,531 |
| 300 | Nonlinear functional analysis | 37 | 481 | 150 | 274 |
| 301 | Imaging systems | 60 | 474 | 19 | 80 |
| 302 | optical devices | 16 | 469 | 97 | 71 |
| 303 | Structural health monitoring | 21 | 464 | 23 | 56 |
| 304 | Electrochemical Analysis | 35 | 462 | 331 | 593 |
| 305 | Oxidative stress | 7 | 457 | 476 | 486 |
| 306 | Neuroplasticity | 24 | 455 | 6 | 32 |
| 307 | Drug design | 11 | 454 | 702 | 586 |
| 308 | food technology | 13 | 453 | 1,225 | 1,199 |
| 309 | Astronomy | 38 | 450 | 914 | 1,345 |
| 309 | micromechanics | 36 | 450 | 67 | 193 |
| 311 | Visual Communication | 22 | 449 | 43 | 52 |
| 311 | Image enhancement | 22 | 449 | 39 | 49 |
| 313 | Biomechanics | 27 | 447 | 315 | 528 |
| 313 | Wind power | 3 | 447 | 290 | 45 |
| 315 | Photochemistry | 12 | 442 | 803 | 664 |
| 316 | Pharmacognosy | 12 | 438 | 885 | 908 |
| 317 | Information Retrieval | 7 | 435 | 239 | 170 |
| 318 | Medicinal plants | 11 | 429 | 616 | 659 |
| 319 | nucleic acids | 11 | 428 | 820 | 910 |
| 320 | Product Design | 53 | 427 | 57 | 117 |
| 321 | Photobiology | 10 | 425 | 660 | 480 |
| 322 | Computer Architecture | 13 | 424 | 165 | 84 |
| 323 | Soil fertility | 5 | 422 | 210 | 143 |
| 323 | brain mapping | 8 | 422 | 340 | 335 |
| 325 | Medical Technology | 12 | 421 | 651 | 575 |
| 326 | Multiphase Flow | 10 | 420 | 171 | 143 |
| 327 | Swarm Intelligence | 11 | 417 | 61 | 99 |
| 328 | Microprocessors | 13 | 414 | 189 | 95 |
| 329 | Economics | 38 | 413 | 1,246 | 1,580 |
| 330 | Database Management | 11 | 406 | 368 | 317 |
| 330 | Superconductors | 50 | 406 | 150 | 248 |
| 332 | rehabilitation | 11 | 402 | 1,031 | 890 |
| 333 | Cerebral cortex | 17 | 400 | 333 | 491 |
| 334 | Databases | 6 | 396 | 246 | 151 |
| 335 | Genetics | 17 | 392 | 1,374 | 1,744 |
| 336 | big data | 15 | 390 | 90 | 158 |
| 337 | microwave antennas | 29 | 378 | 33 | 50 |
| 338 | Medical genetics | 7 | 375 | 1,290 | 1,235 |
| 339 | Surface-Active Agents | 15 | 374 | 321 | 533 |
| 339 | Surface properties | 15 | 374 | 354 | 586 |
| 341 | Social Change | 12 | 372 | 401 | 685 |
| 342 | radar | 42 | 364 | 12 | 31 |
| 342 | Sonar | 42 | 364 | 12 | 25 |
| 342 | Navigation | 43 | 364 | 20 | 39 |
| 345 | Ergonomics | 23 | 362 | 264 | 339 |
| 346 | Adhesion | 24 | 359 | 62 | 155 |
| 346 | adhesives | 24 | 359 | 70 | 156 |
| 348 | Speech Perception | 18 | 354 | 74 | 160 |
| 348 | auditory perception | 18 | 354 | 85 | 181 |
| 350 | Molecular structure | 59 | 353 | 316 | 1,059 |
| 351 | Organic Chemistry | 29 | 345 | 1,119 | 1,534 |
| 352 | World Wide Web | 17 | 342 | 50 | 60 |
| 353 | Logistics | 14 | 341 | 155 | 284 |
| 353 | human behavior | 3 | 341 | 2,264 | 1,548 |
| 353 | Behavior | 3 | 341 | 2,700 | 1,781 |
| 356 | free radicals | 13 | 340 | 589 | 871 |
| 357 | Iron | 23 | 335 | 61 | 88 |
| 358 | Parallel Processing | 10 | 334 | 208 | 246 |
| 359 | Functional Analysis | 29 | 333 | 349 | 517 |
| 360 | Graph Theory | 57 | 330 | 56 | 175 |
| 361 | Finite Element Method | 11 | 320 | 99 | 73 |
| 362 | Asia | 19 | 318 | 923 | 958 |
| 363 | Luminescence | 28 | 317 | 251 | 459 |
| 364 | Environmental Toxicology | 19 | 308 | 831 | 1,486 |
| 365 | Bioprinting | 6 | 304 | 22 | 11 |
| 366 | Organometallic chemistry | 29 | 303 | 550 | 894 |
| 367 | Toxicology | 19 | 298 | 1,839 | 2,489 |
| 367 | Biomass Energy | 9 | 298 | 1,423 | 1,622 |
| 369 | Insects | 8 | 291 | 892 | 613 |
| 370 | plant molecular biology | 9 | 290 | 809 | 1,065 |
| 371 | Cellular senescence | 1 | 287 | 619 | 292 |
| 372 | Food additives | 4 | 285 | 919 | 689 |
| 372 | hydrocolloids | 4 | 285 | 508 | 502 |
| 372 | Bones | 4 | 285 | 575 | 470 |
| 375 | Chemical industry | 22 | 283 | 349 | 463 |
| 376 | Combinatorial analysis | 46 | 278 | 143 | 293 |
| 377 | Quality of life | 4 | 277 | 1,198 | 800 |
| 378 | explosives | 28 | 275 | 22 | 38 |
| 379 | Oxidation-reduction | 6 | 274 | 509 | 653 |
| 380 | Information Theory | 17 | 273 | 532 | 710 |
| 380 | Earth Sciences | 28 | 273 | 1,087 | 1,723 |
| 382 | energy resources | 8 | 272 | 789 | 1,129 |
| 383 | Humanities | 7 | 270 | 1,161 | 467 |
| 384 | Differential Equations | 22 | 269 | 312 | 446 |
| 385 | Flexible manufacturing systems | 6 | 268 | 210 | 153 |
| 386 | Electrophysiology | 12 | 267 | 426 | 411 |
| 386 | Plant cells | 5 | 267 | 766 | 969 |
| 388 | Mineralogy | 37 | 265 | 347 | 711 |
| 389 | food handling | 7 | 263 | 507 | 538 |
| 390 | Software Engineering | 16 | 256 | 369 | 516 |
| 390 | Atomic spectroscopy | 13 | 256 | 508 | 520 |
| 392 | Transnational corporations | 7 | 254 | 144 | 140 |
| 393 | microwave communication systems | 20 | 252 | 80 | 170 |
| 393 | Microwave devices | 20 | 252 | 119 | 206 |
| 395 | Plant Ecology | 17 | 251 | 706 | 1,174 |
| 396 | Ultrasound | 17 | 248 | 233 | 367 |
| 397 | Clinical Chemistry | 9 | 247 | 1,398 | 1,514 |
| 397 | concrete | 5 | 247 | 733 | 742 |
| 399 | Drug delivery systems | 9 | 244 | 859 | 1,048 |
| 399 | Welding | 21 | 244 | 40 | 32 |
| 401 | Analytical Biochemistry | 13 | 242 | 750 | 920 |
| 401 | Hydrodynamics | 18 | 242 | 175 | 360 |
| 403 | Neurophysiology | 7 | 241 | 1,672 | 1,625 |
| 404 | cytokines | 10 | 240 | 541 | 757 |
| 404 | textile fibers | 17 | 240 | 102 | 96 |
| 404 | Decision making | 27 | 240 | 323 | 786 |
| 404 | Informatics | 13 | 240 | 315 | 486 |
| 408 | plant communities | 6 | 239 | 737 | 809 |
| 409 | Quantum Gravity | 14 | 234 | 1,140 | 1,266 |
| 410 | Superconductivity | 23 | 233 | 90 | 163 |
| 411 | Biological Systems | 6 | 231 | 308 | 269 |
| 412 | Neurochemistry | 11 | 226 | 1,153 | 1,371 |
| 412 | Medical Oncology | 5 | 226 | 1,063 | 957 |
| 414 | Energy Consumption | 9 | 223 | 153 | 296 |
| 415 | Crystallography | 21 | 222 | 607 | 560 |
| 416 | Food service management | 1 | 221 | 791 | 382 |
| 417 | Oceanography | 16 | 217 | 746 | 1,055 |
| 417 | Environmental Geology | 13 | 217 | 713 | 1,047 |
| 417 | Risk assessment | 34 | 217 | 22 | 204 |
| 417 | Capital market | 2 | 217 | 580 | 240 |
| 421 | soil conservation | 8 | 216 | 382 | 466 |
| 421 | Aging | 3 | 216 | 2,208 | 1,404 |
| 423 | Microbial Ecology | 5 | 215 | 1,549 | 1,652 |
| 424 | Electronic Packaging | 8 | 214 | 97 | 83 |
| 425 | Molecular Spectroscopy | 14 | 213 | 808 | 1,078 |
| 425 | Zeolites | 10 | 213 | 427 | 683 |
| 427 | language | 6 | 212 | 560 | 517 |
| 428 | Europe | 10 | 211 | 1,555 | 1,473 |
| 429 | Insect biochemistry | 5 | 210 | 308 | 294 |
| 430 | Project Management | 4 | 208 | 210 | 289 |
| 430 | Calculus of Variations | 9 | 208 | 277 | 220 |
| 430 | Environmental pollutants | 11 | 208 | 1,125 | 1,600 |
| 433 | Brain | 10 | 207 | 1,322 | 1,594 |
| 434 | Molecular ecology | 7 | 205 | 644 | 884 |
| 435 | Liquid Crystals | 35 | 203 | 174 | 265 |
| 435 | Japan | 12 | 203 | 761 | 803 |
| 437 | Plants | 10 | 200 | 1,108 | 1,397 |
| 438 | Bioorganic chemistry | 16 | 199 | 1,237 | 1,817 |
| 439 | environmental exposure | 12 | 197 | 864 | 1,375 |
| 439 | Cell death | 7 | 197 | 695 | 921 |
| 441 | Proteomics | 12 | 196 | 456 | 749 |
| 442 | Astrophysics | 16 | 193 | 1,536 | 1,900 |
| 443 | Neurobiology | 2 | 187 | 1,568 | 1,174 |
| 444 | Pharmacogenetics | 4 | 185 | 703 | 623 |
| 444 | Educational Technology | 11 | 185 | 759 | 1,076 |
| 444 | sanitation | 5 | 185 | 1,132 | 1,450 |
| 444 | Planets | 6 | 185 | 989 | 1,152 |
| 448 | Ferroelectricity | 25 | 181 | 268 | 421 |
| 449 | Naval Architecture | 14 | 179 | 145 | 144 |
| 449 | Nanoelectronics | 15 | 179 | 263 | 318 |
| 451 | identity recognition | 3 | 177 | 37 | 17 |
| 452 | Nanobiotechnology | 6 | 174 | 224 | 427 |
| 452 | Electrophoresis | 14 | 174 | 686 | 1,059 |
| 452 | Simulation Methods | 12 | 174 | 369 | 519 |
| 452 | Organometallic compounds | 14 | 174 | 592 | 867 |
| 456 | Tourism | 8 | 173 | 983 | 1,363 |
| 457 | drug evaluation | 7 | 172 | 767 | 852 |
| 458 | United States | 10 | 168 | 2,684 | 2,866 |
| 459 | Herbal medicine | 4 | 165 | 589 | 607 |
| 460 | Immunology | 8 | 164 | 1,660 | 2,018 |
| 461 | Human Resources | 4 | 162 | 376 | 433 |
| 461 | Cement | 2 | 162 | 683 | 611 |
| 463 | Economic History | 13 | 161 | 1,602 | 1,783 |
| 464 | Wireless Communication | 10 | 160 | 137 | 151 |
| 465 | investigative techniques | 2 | 159 | 171 | 105 |
| 466 | Quantum Optics | 7 | 158 | 572 | 505 |
| 466 | phase diagrams | 10 | 158 | 58 | 63 |
| 466 | Laser Spectroscopy | 7 | 158 | 531 | 462 |
| 469 | Discrete Mathematics | 33 | 157 | 11 | 43 |
| 469 | graph | 33 | 157 | 11 | 43 |
| 471 | biological evolution | 8 | 155 | 1,167 | 1,677 |
| 472 | Chromatographic analysis | 12 | 152 | 883 | 1,123 |
| 473 | Marine Engineering | 12 | 151 | 136 | 86 |
| 473 | Ultrasonic Imaging | 12 | 151 | 171 | 332 |
| 475 | Hematology | 2 | 150 | 1,747 | 1,316 |
| 475 | biological factors | 7 | 150 | 1,224 | 1,361 |
| 477 | land degradation | 5 | 149 | 329 | 384 |
| 477 | Medical innovations | 10 | 149 | 401 | 1,013 |
| 477 | degradation | 5 | 149 | 329 | 384 |
| 480 | Integrated Circuits | 20 | 147 | 191 | 251 |
| 481 | Chromatography | 11 | 146 | 773 | 1,059 |
| 482 | Hydrology | 10 | 145 | 1,299 | 1,704 |
| 482 | Trace elements | 2 | 145 | 363 | 260 |
| 484 | Molecular evolution | 7 | 144 | 870 | 1,275 |
| 484 | pollutants | 8 | 144 | 1,141 | 1,686 |
| 484 | Refractory materials | 18 | 144 | 25 | 18 |
| 487 | Neurons | 1 | 143 | 759 | 853 |
| 488 | Molecules | 5 | 142 | 1,205 | 923 |
| 488 | Oral communication | 12 | 142 | 125 | 254 |
| 488 | Microscopy | 12 | 142 | 593 | 809 |
| 488 | Speech | 12 | 142 | 404 | 692 |
| 492 | Alloys | 21 | 140 | 35 | 77 |
| 493 | Radiation effects | 9 | 139 | 266 | 588 |
| 494 | Growth factors | 1 | 137 | 476 | 324 |
| 494 | Cytokine | 1 | 137 | 629 | 391 |
| 496 | technology transfer | 4 | 133 | 179 | 217 |
| 496 | visualization | 17 | 133 | 520 | 611 |
| 498 | Biomolecules | 7 | 132 | 216 | 455 |
| 499 | Histology | 3 | 131 | 1,612 | 1,383 |
| 499 | Thin Films | 12 | 131 | 145 | 264 |
| 499 | Investment analysis | 8 | 131 | 486 | 669 |
| 499 | Optoelectronic devices | 10 | 131 | 439 | 437 |
| 503 | Nuclear Energy | 7 | 130 | 592 | 564 |
| 503 | Acoustics | 25 | 130 | 54 | 175 |
| 505 | Food Safety | 3 | 129 | 250 | 141 |
| 505 | food industry | 4 | 129 | 635 | 447 |
| 507 | Plant Genetics | 2 | 128 | 774 | 714 |
| 507 | Antioxidants | 2 | 128 | 835 | 794 |
| 509 | Psychology | 12 | 125 | 2,393 | 3,122 |
| 510 | Cloud Computing | 3 | 124 | 313 | 285 |
| 510 | Public Policy | 7 | 124 | 1,079 | 1,396 |
| 510 | Egypt | 4 | 124 | 417 | 449 |
| 513 | Engineering Geology | 8 | 123 | 839 | 1,141 |
| 514 | Human genetics | 3 | 122 | 1,407 | 1,906 |
| 514 | Nanotubes | 8 | 122 | 57 | 49 |
| 516 | Endocrinology | 4 | 121 | 1,975 | 2,086 |
| 516 | Optoelectronics | 27 | 121 | 65 | 204 |
| 516 | Algorithms | 14 | 121 | 216 | 430 |
| 516 | Semiconductor industry | 6 | 121 | 377 | 337 |
| 520 | Inventory Control | 3 | 120 | 48 | 59 |
| 520 | Developmental Biology | 11 | 120 | 907 | 1,624 |
| 522 | Autonomous robots | 8 | 119 | 64 | 180 |
| 523 | Immunotherapy | 11 | 117 | 805 | 1,441 |
| 523 | Horticulture | 6 | 117 | 492 | 518 |
| 523 | Research Design | 1 | 117 | 1,636 | 945 |
| 523 | Immunopharmacology | 10 | 117 | 483 | 866 |
| 523 | calcification | 3 | 117 | 462 | 443 |
| 523 | Liposomes | 1 | 117 | 949 | 519 |
| 523 | Lipid bilayers | 1 | 117 | 790 | 449 |
| 523 | Muscle contraction | 22 | 117 | 16 | 52 |
| 531 | Cell differentiation | 6 | 115 | 935 | 1,374 |
| 531 | Mineral resources | 6 | 115 | 350 | 653 |
| 531 | Quantum theory | 8 | 115 | 649 | 734 |
| 534 | Ophthalmology | 9 | 113 | 947 | 1,236 |
| 535 | Radiation | 15 | 112 | 934 | 1,483 |
| 535 | Porous materials | 14 | 112 | 190 | 487 |
| 537 | environmental indicators | 6 | 111 | 814 | 1,265 |
| 537 | Financial management | 6 | 111 | 286 | 523 |
| 537 | nuclear power | 4 | 111 | 384 | 230 |
| 540 | Probability | 8 | 110 | 301 | 474 |
| 540 | Public Administration | 2 | 110 | 1,584 | 939 |
| 542 | Telecommunications | 10 | 109 | 288 | 485 |
| 543 | Ecosystem management | 2 | 108 | 845 | 616 |
| 543 | Mass Spectrometry | 2 | 108 | 1,240 | 882 |
| 545 | Biogeography | 3 | 107 | 944 | 1,053 |
| 545 | ecosystem | 3 | 107 | 1,228 | 1,322 |
| 545 | biomimicry | 7 | 107 | 80 | 158 |
| 548 | Statistical Mechanics | 7 | 104 | 419 | 440 |
| 548 | Virulence | 3 | 104 | 941 | 1,198 |
| 550 | Metabolic diseases | 3 | 103 | 1,664 | 1,765 |
| 551 | Drug targeting | 3 | 101 | 294 | 382 |
| 551 | Cellulose | 6 | 101 | 367 | 643 |
| 553 | Emulsions | 7 | 100 | 172 | 185 |
| 554 | Mobile Commerce | 1 | 99 | 52 | 6 |
| 555 | Food Microbiology | 3 | 98 | 1,179 | 1,406 |
| 555 | local government | 1 | 98 | 621 | 335 |
| 555 | Chemical analysis | 4 | 98 | 966 | 1,066 |
| 558 | Information Systems | 7 | 97 | 869 | 1,246 |
| 558 | Leadership | 1 | 97 | 958 | 655 |
| 558 | natural disasters | 7 | 97 | 806 | 1,286 |
| 558 | Radio frequency | 5 | 97 | 318 | 389 |
| 562 | Biopharmaceutics | 4 | 96 | 877 | 1,049 |
| 562 | Clinical Biochemistry | 2 | 96 | 1,214 | 916 |
| 562 | Risk | 10 | 96 | 232 | 541 |
| 565 | Liver diseases | 3 | 95 | 1,038 | 1,198 |
| 566 | East Asia | 7 | 94 | 313 | 351 |
| 566 | Cheminformatics | 3 | 94 | 315 | 413 |
| 568 | Molecular Microbiology | 2 | 93 | 888 | 960 |
| 568 | Bacterial diseases | 2 | 93 | 353 | 299 |
| 570 | Noise | 16 | 92 | 17 | 63 |
| 570 | Entomology | 6 | 92 | 1,633 | 1,591 |
| 572 | Archaeology | 14 | 91 | 587 | 943 |
| 572 | Bacteriology | 2 | 91 | 1,824 | 1,748 |
| 572 | Enzyme | 2 | 91 | 674 | 654 |
| 572 | organization | 1 | 91 | 1,269 | 899 |
| 576 | Developing countries | 6 | 90 | 1,594 | 1,953 |
| 577 | Geriatric Oncology | 1 | 89 | 815 | 547 |
| 577 | Bone diseases | 2 | 89 | 552 | 538 |
| 579 | Strategic planning | 6 | 88 | 488 | 778 |
| 579 | Plant diseases | 6 | 88 | 1,368 | 1,601 |
| 581 | Molecular Pharmacology | 5 | 87 | 628 | 935 |
| 581 | liver | 2 | 87 | 356 | 273 |
| 581 | Textile industry | 9 | 87 | 237 | 306 |
| 584 | Molecular Genetics | 2 | 86 | 1,817 | 1,820 |
| 584 | Physical organic chemistry | 8 | 86 | 914 | 1,238 |
| 584 | Cell cycle | 3 | 86 | 280 | 284 |
| 584 | cell proliferation | 3 | 86 | 308 | 301 |
| 588 | Bioenergetics | 2 | 85 | 974 | 908 |
| 588 | Risk Management | 5 | 85 | 462 | 656 |
| 590 | Agricultural Engineering | 2 | 83 | 536 | 471 |
| 591 | Avionics | 12 | 81 | 20 | 102 |
| 591 | Bifurcation Theory | 7 | 81 | 112 | 214 |
| 591 | Inflammation | 2 | 81 | 1,190 | 1,243 |
| 591 | Stem cells | 7 | 81 | 804 | 1,285 |
| 595 | economic policy | 7 | 80 | 1,551 | 1,687 |
| 595 | Tunneling | 3 | 80 | 328 | 432 |
| 595 | underground construction | 3 | 80 | 328 | 432 |
| 598 | Neuropsychology | 3 | 79 | 1,968 | 1,948 |
| 598 | educational innovations | 2 | 79 | 678 | 568 |
| 600 | Diagnosis | 4 | 78 | 302 | 351 |
| 601 | Computational Linguistics | 13 | 77 | 96 | 323 |
| 602 | Diagnostic microbiology | 1 | 76 | 1,333 | 1,320 |
| 602 | cell interaction | 3 | 76 | 932 | 1,142 |
| 602 | Recycling | 4 | 76 | 484 | 1,085 |
| 602 | Immunity | 3 | 76 | 1,429 | 1,790 |
| 606 | Bioinorganic chemistry | 5 | 74 | 1,111 | 1,391 |
| 606 | drugs | 2 | 74 | 2,059 | 1,822 |
| 606 | Genes | 4 | 74 | 911 | 1,103 |
| 609 | Geomorphology | 4 | 73 | 1,167 | 1,528 |
| 609 | X-ray crystallography | 5 | 73 | 418 | 405 |
| 609 | RNA | 1 | 73 | 774 | 610 |
| 612 | Epidemiology | 6 | 72 | 2,261 | 2,997 |
| 612 | gene therapy | 2 | 72 | 979 | 1,009 |
| 612 | Lightweight concrete | 3 | 72 | 411 | 764 |
| 612 | ozone | 1 | 72 | 270 | 98 |
| 612 | Genetic therapy | 2 | 72 | 1,004 | 1,022 |
| 617 | Electromagnetic compatibility | 10 | 71 | 152 | 315 |
| 618 | Pathology | 3 | 70 | 1,547 | 1,753 |
| 618 | Shock Waves | 5 | 70 | 110 | 139 |
| 618 | Electromagnetic fields | 10 | 70 | 121 | 142 |
| 621 | Radiology | 5 | 69 | 941 | 1,026 |
| 621 | Nuclear Fusion | 2 | 69 | 659 | 474 |
| 621 | Biomarkers | 2 | 69 | 531 | 389 |
| 621 | Probiotics | 1 | 69 | 443 | 243 |
| 621 | biochemical markers | 2 | 69 | 771 | 623 |
| 621 | fusion reactors | 2 | 69 | 488 | 273 |
| 621 | Cognition | 4 | 69 | 1,395 | 1,598 |
| 621 | gastrointestinal tract | 1 | 69 | 565 | 568 |
| 629 | Total Quality Management | 4 | 68 | 417 | 652 |
| 629 | personality | 3 | 68 | 1,414 | 1,642 |
| 631 | Virtual reality | 10 | 67 | 129 | 458 |
| 631 | soil pollution | 3 | 67 | 559 | 625 |
| 631 | Turbulence | 7 | 67 | 128 | 219 |
| 631 | Marine resources | 2 | 67 | 839 | 793 |
| 631 | Australia | 6 | 67 | 1,251 | 1,619 |
| 636 | Cryptography | 9 | 66 | 301 | 448 |
| 637 | Civil Engineering | 9 | 65 | 831 | 1,122 |
| 637 | Genetic engineering | 10 | 65 | 1,029 | 2,047 |
| 637 | Forest Ecology | 4 | 65 | 854 | 1,200 |
| 637 | dietary supplements | 4 | 65 | 723 | 1,090 |
| 637 | Forest Management | 4 | 65 | 823 | 1,135 |
| 637 | telemarketing | 2 | 65 | 133 | 175 |
| 637 | Immune system | 2 | 65 | 954 | 1,086 |
| 644 | Continuum Mechanics | 5 | 64 | 108 | 152 |
| 645 | Rock Mechanics | 4 | 63 | 764 | 961 |
| 645 | innovation | 3 | 63 | 634 | 910 |
| 647 | Game Theory | 10 | 62 | 255 | 509 |
| 647 | Soil Mechanics | 3 | 62 | 1,017 | 1,122 |
| 647 | Happiness | 2 | 62 | 593 | 636 |
| 650 | Chronobiology | 1 | 61 | 903 | 531 |
| 650 | Circadian rhythms | 1 | 61 | 681 | 462 |
| 650 | biological clocks | 1 | 61 | 903 | 531 |
| 650 | glycoproteins | 1 | 61 | 693 | 563 |
| 650 | Glycoconjugates | 1 | 61 | 693 | 563 |
| 650 | Oligosaccharide | 1 | 61 | 499 | 424 |
| 650 | circadian rhythm | 1 | 61 | 903 | 531 |
| 650 | Carbohydrates | 1 | 61 | 698 | 531 |
| 650 | biological rhythms | 1 | 61 | 866 | 521 |
| 650 | glycolipids | 1 | 61 | 693 | 563 |
| 660 | Cosmology | 2 | 60 | 750 | 642 |
| 660 | Stochastic Processes | 6 | 60 | 633 | 863 |
| 660 | nuclear astrophysics | 2 | 60 | 583 | 545 |
| 660 | Radiobiology | 2 | 60 | 1,203 | 1,174 |
| 660 | Raman spectroscopy | 4 | 60 | 699 | 920 |
| 660 | Database Security | 8 | 60 | 17 | 62 |
| 660 | Oxidation | 4 | 60 | 120 | 181 |
| 667 | Petroleum Engineering | 4 | 58 | 584 | 757 |
| 667 | Microbial Biotechnology | 3 | 58 | 1,054 | 1,328 |
| 667 | Soil dynamics | 4 | 58 | 445 | 609 |
| 667 | Molecular cloning | 7 | 58 | 880 | 1,505 |
| 667 | Evidence-Based Medicine | 4 | 58 | 542 | 881 |
| 667 | Genetic recombination | 7 | 58 | 868 | 1,493 |
| 667 | Recombinant DNA | 7 | 58 | 938 | 1,548 |
| 674 | Traffic Engineering | 2 | 57 | 551 | 600 |
| 675 | Sensor Networks | 7 | 56 | 99 | 255 |
| 675 | Fractional Calculus | 3 | 56 | 140 | 164 |
| 675 | Convergence | 1 | 56 | 115 | 139 |
| 678 | Psychiatry | 3 | 55 | 3,235 | 3,496 |
| 678 | Developmental Psychology | 3 | 55 | 993 | 1,140 |
| 678 | Catalysts | 4 | 55 | 608 | 792 |
| 681 | Real-time Data Processing | 1 | 54 | 248 | 146 |
| 681 | commerce | 3 | 54 | 1,592 | 1,699 |
| 683 | Geochemistry | 2 | 53 | 2,021 | 2,047 |
| 683 | exobiology | 1 | 53 | 473 | 445 |
| 685 | Underwater acoustics | 4 | 52 | 45 | 48 |
| 685 | Women's health | 1 | 52 | 1,948 | 1,366 |
| 687 | Environmental Law | 3 | 51 | 1,032 | 1,688 |
| 687 | Machine Learning | 5 | 51 | 225 | 415 |
| 687 | Coastal zone management | 1 | 51 | 1,119 | 863 |
| 687 | Microfabrication | 5 | 51 | 229 | 417 |
| 687 | Earthquakes | 2 | 51 | 460 | 390 |
| 687 | supercritical fluids | 1 | 51 | 686 | 599 |
| 693 | Polymer Engineering | 5 | 49 | 51 | 105 |
| 694 | Linguistics | 5 | 48 | 1,018 | 1,201 |
| 694 | Gene expression | 2 | 48 | 334 | 389 |
| 694 | radiative transfer | 4 | 48 | 517 | 616 |
| 694 | toxicity testing | 2 | 48 | 816 | 931 |
| 698 | Technology Assessment | 1 | 46 | 859 | 865 |
| 699 | Actuarial Science | 1 | 44 | 442 | 319 |
| 699 | Production Planning | 2 | 44 | 363 | 534 |
| 699 | Pharmaceutical Technology | 4 | 44 | 1,296 | 1,836 |
| 699 | Cytogenetics | 1 | 44 | 1,672 | 1,577 |
| 699 | preventive medicine | 3 | 44 | 1,038 | 1,421 |
| 699 | Travel | 3 | 44 | 749 | 938 |
| 699 | Cell division | 1 | 44 | 624 | 623 |
| 699 | Production Control | 2 | 44 | 349 | 531 |
| 699 | insurance | 1 | 44 | 659 | 450 |
| 699 | Therapeutics | 1 | 44 | 1,965 | 1,782 |
| 699 | Central Asia | 4 | 44 | 95 | 245 |
| 710 | Geriatrics | 3 | 43 | 2,403 | 2,673 |
| 710 | Occupational Health | 8 | 43 | 548 | 1,133 |
| 710 | industrial hygiene | 8 | 43 | 517 | 969 |
| 710 | Protozoa | 4 | 43 | 336 | 605 |
| 710 | Chemical structure | 3 | 43 | 524 | 515 |
| 710 | proteins | 3 | 43 | 1,761 | 2,108 |
| 716 | Nuclear Chemistry | 1 | 42 | 1,617 | 1,029 |
| 716 | Radiochemistry | 1 | 42 | 1,539 | 930 |
| 716 | Mental Disorders | 2 | 42 | 2,628 | 2,811 |
| 716 | Hormones | 3 | 42 | 1,060 | 1,437 |
| 716 | economic analysis | 4 | 42 | 171 | 396 |
| 716 | Mental illness | 2 | 42 | 1,808 | 2,113 |
| 716 | Evolution | 4 | 42 | 1,467 | 2,156 |
| 716 | Phylogeny | 1 | 42 | 1,293 | 1,321 |
| 724 | Geology | 3 | 41 | 2,514 | 2,783 |
| 724 | Organizational learning | 2 | 41 | 647 | 616 |
| 724 | Knowledge management | 2 | 41 | 595 | 516 |
| 724 | Supramolecular chemistry | 2 | 41 | 342 | 259 |
| 728 | Interfaces | 3 | 40 | 322 | 443 |
| 728 | data protection | 8 | 40 | 232 | 728 |
| 728 | silicon | 8 | 40 | 141 | 412 |
| 731 | Marine Biology | 3 | 39 | 2,253 | 2,788 |
| 731 | emergency management | 2 | 39 | 849 | 1,036 |
| 731 | Corporate governance | 3 | 39 | 647 | 986 |
| 731 | Nanomanufacturing | 3 | 39 | 109 | 77 |
| 735 | Speech-Language Pathology | 3 | 38 | 270 | 397 |
| 735 | Higher Education | 1 | 38 | 1,115 | 805 |
| 735 | Rheology | 4 | 38 | 484 | 754 |
| 735 | Ubiquitous computing | 4 | 38 | 195 | 249 |
| 735 | optical pattern recognition | 4 | 38 | 86 | 118 |
| 735 | automatic speech recognition | 3 | 38 | 128 | 252 |
| 741 | Highway Engineering | 1 | 37 | 647 | 552 |
| 741 | Matroids | 5 | 37 | 180 | 317 |
| 741 | Exercise | 4 | 37 | 1,271 | 1,667 |
| 741 | Vaccines | 1 | 37 | 2,196 | 2,019 |
| 745 | Neuropsychiatry | 1 | 35 | 1,118 | 1,047 |
| 745 | Health Policy | 3 | 35 | 1,937 | 2,407 |
| 747 | Behavioral research | 2 | 34 | 814 | 842 |
| 747 | Money | 2 | 34 | 472 | 678 |
| 749 | occupational diseases | 4 | 33 | 616 | 1,225 |
| 749 | Korea | 4 | 33 | 271 | 375 |
| 749 | Agriculture | 5 | 33 | 1,595 | 2,616 |
| 752 | Oncogenes | 1 | 32 | 1,168 | 1,411 |
| 752 | pharmaceutical industry | 3 | 32 | 561 | 844 |
| 752 | Metrology | 2 | 32 | 101 | 70 |
| 755 | Water quality management | 4 | 31 | 1,571 | 2,343 |
| 755 | Obesity | 1 | 31 | 2,265 | 2,394 |
| 755 | infection | 1 | 31 | 1,946 | 1,933 |
| 755 | Pakistan | 1 | 31 | 52 | 9 |
| 759 | Software Maintenance | 6 | 30 | 75 | 264 |
| 760 | Landslides | 1 | 29 | 471 | 591 |
| 760 | Investments | 2 | 29 | 723 | 817 |
| 762 | Geometry | 10 | 28 | 656 | 1,113 |
| 762 | Immunopathology | 2 | 28 | 1,098 | 1,444 |
| 762 | Geomagnetism | 1 | 28 | 816 | 821 |
| 762 | Machining | 4 | 28 | 94 | 225 |
| 762 | analysis | 1 | 28 | 548 | 562 |
| 762 | drug development | 1 | 28 | 1,333 | 1,502 |
| 768 | Education | 2 | 27 | 3,907 | 3,724 |
| 768 | Plasma chemistry | 1 | 27 | 665 | 648 |
| 768 | Powder Metallurgy | 4 | 27 | 160 | 208 |
| 768 | Small Business | 3 | 27 | 762 | 1,384 |
| 768 | Building | 2 | 27 | 689 | 720 |
| 768 | arthritis | 2 | 27 | 1,001 | 1,444 |
| 768 | Mountains | 2 | 27 | 550 | 608 |
| 775 | Regeneration | 2 | 26 | 87 | 158 |
| 775 | Noise control | 21 | 26 | 25 | 55 |
| 775 | Magnetism | 4 | 26 | 118 | 134 |
| 775 | International Business | 1 | 26 | 406 | 323 |
| 775 | India | 3 | 26 | 1,540 | 1,629 |
| 780 | Health Services Administration | 1 | 25 | 1,652 | 1,559 |
| 780 | Seismology | 3 | 25 | 469 | 711 |
| 780 | Marine Geology | 1 | 25 | 924 | 908 |
| 780 | Petroleum Geology | 1 | 25 | 750 | 790 |
| 780 | Thermochemistry | 3 | 25 | 507 | 768 |
| 780 | Entrepreneurship | 3 | 25 | 1,016 | 1,788 |
| 780 | Information society | 2 | 25 | 200 | 366 |
| 780 | United Kingdom | 1 | 25 | 2,022 | 1,913 |
| 788 | Pharmacy | 3 | 24 | 1,836 | 2,649 |
| 788 | Philosophy of Mind | 4 | 24 | 214 | 420 |
| 788 | Crystallization | 1 | 24 | 800 | 596 |
| 788 | Quality Assurance | 3 | 24 | 327 | 622 |
| 788 | Scheduling | 1 | 24 | 280 | 295 |
| 788 | moral development | 4 | 24 | 67 | 287 |
| 788 | Production Scheduling | 1 | 24 | 280 | 295 |
| 788 | Freezing | 3 | 24 | 285 | 415 |
| 788 | research and development | 1 | 24 | 603 | 683 |
| 788 | Steroids | 2 | 24 | 1,012 | 1,371 |
| 798 | Geography | 2 | 23 | 2,226 | 2,671 |
| 798 | Computational Chemistry | 2 | 23 | 835 | 1,081 |
| 798 | Distance Education | 1 | 23 | 725 | 777 |
| 798 | Parkinson's disease | 1 | 23 | 420 | 510 |
| 798 | plasma | 2 | 23 | 141 | 175 |
| 798 | Fibers | 2 | 23 | 136 | 119 |
| 804 | Geodesy | 3 | 22 | 765 | 1,266 |
| 804 | Celestial Mechanics | 3 | 22 | 197 | 284 |
| 804 | Aviation | 13 | 22 | 1 | 13 |
| 807 | Waste management | 3 | 21 | 1,423 | 2,135 |
| 807 | Industrial Policy | 1 | 21 | 823 | 849 |
| 807 | neuronal plasticity | 1 | 21 | 235 | 382 |
| 807 | indoor air pollution | 1 | 21 | 698 | 815 |
| 807 | Ventilation | 2 | 21 | 667 | 953 |
| 807 | Sick building syndrome | 1 | 21 | 698 | 815 |
| 807 | DNA polymerases | 3 | 21 | 366 | 886 |
| 814 | Clinical Immunology | 1 | 20 | 1,235 | 1,431 |
| 814 | Historic Preservation | 1 | 20 | 270 | 244 |
| 814 | Plant genetic engineering | 1 | 20 | 1,275 | 1,441 |
| 814 | ecological risk assessment | 1 | 20 | 544 | 646 |
| 814 | Water Purification | 2 | 20 | 1,408 | 1,816 |
| 814 | Teaching | 1 | 20 | 2,642 | 2,416 |
| 814 | Financial Institutions | 1 | 20 | 742 | 751 |
| 814 | Biometrics | 3 | 20 | 940 | 1,331 |
| 814 | Monomers | 3 | 20 | 63 | 178 |
| 814 | Health Risk Assessment | 1 | 20 | 920 | 951 |
| 814 | Petroleum | 2 | 20 | 330 | 404 |
| 814 | Hydrocarbons | 2 | 20 | 141 | 197 |
| 814 | tomography | 1 | 20 | 579 | 507 |
| 814 | Spine | 2 | 20 | 680 | 991 |
| 814 | mathematical concepts | 3 | 20 | 405 | 633 |
| 814 | Cell communication | 1 | 20 | 937 | 1,190 |
| 830 | Social Choice Theory | 2 | 19 | 318 | 350 |
| 830 | Welfare Economics | 2 | 19 | 530 | 677 |
| 830 | Leukemia | 1 | 19 | 973 | 1,104 |
| 830 | natural products | 2 | 19 | 2,098 | 2,492 |
| 830 | North America | 2 | 19 | 1,032 | 1,311 |
| 835 | Neurotoxicology | 1 | 18 | 965 | 1,298 |
| 835 | Sustainable agriculture | 3 | 18 | 708 | 1,418 |
| 835 | Organizational change | 1 | 18 | 1,274 | 1,346 |
| 835 | Terahertz Technology | 1 | 18 | 296 | 348 |
| 835 | Apoptosis | 1 | 18 | 528 | 748 |
| 835 | neurotoxins | 1 | 18 | 528 | 748 |
| 835 | Viticulture | 1 | 18 | 228 | 264 |
| 835 | Neurotoxic agents | 1 | 18 | 528 | 748 |
| 835 | carcinogens | 1 | 18 | 1,347 | 1,608 |
| 835 | Nerve regeneration | 1 | 18 | 528 | 748 |
| 845 | Meteorology | 1 | 17 | 2,726 | 3,026 |
| 845 | Comparative Physiology | 2 | 17 | 889 | 1,317 |
| 845 | Regional Planning | 2 | 17 | 1,680 | 2,174 |
| 845 | Digital electronics | 4 | 17 | 254 | 462 |
| 845 | Multivariate Analysis | 2 | 17 | 687 | 902 |
| 845 | Synchrotron Radiation | 2 | 17 | 453 | 627 |
| 845 | Classification | 2 | 17 | 371 | 495 |
| 845 | atmosphere | 1 | 17 | 1,206 | 1,417 |
| 845 | city planning | 2 | 17 | 1,858 | 2,420 |
| 845 | Alzheimer's disease | 1 | 17 | 1,696 | 1,453 |
| 855 | Paleoclimatology | 2 | 16 | 1,185 | 1,697 |
| 855 | Paleoecology | 2 | 16 | 1,166 | 1,605 |
| 855 | Andrology | 1 | 16 | 868 | 1,001 |
| 855 | Health Information Management | 1 | 16 | 663 | 1,090 |
| 855 | Quality Management | 2 | 16 | 246 | 390 |
| 855 | soil management | 4 | 16 | 457 | 1,156 |
| 855 | Fermentation | 1 | 16 | 415 | 493 |
| 855 | Paleogeography | 2 | 16 | 1,059 | 1,472 |
| 855 | X-rays | 5 | 16 | 382 | 814 |
| 855 | Lipids | 3 | 16 | 1,186 | 2,036 |
| 855 | brewing | 1 | 16 | 366 | 396 |
| 855 | libraries | 1 | 16 | 948 | 782 |
| 855 | drug toxicity | 1 | 16 | 948 | 1,252 |
| 868 | Embedded Systems | 3 | 15 | 200 | 372 |
| 868 | Global Health | 1 | 15 | 1,742 | 1,883 |
| 868 | Agricultural Ecology | 2 | 15 | 1,209 | 2,027 |
| 868 | Hydraulic Engineering | 1 | 15 | 1,291 | 1,384 |
| 868 | Pharmacokinetics | 2 | 15 | 966 | 1,596 |
| 868 | Natural resources | 1 | 15 | 1,181 | 1,402 |
| 868 | Information visualization | 3 | 15 | 168 | 375 |
| 868 | monoclonal antibodies | 2 | 15 | 329 | 513 |
| 868 | Electromagnetic waves | 2 | 15 | 405 | 606 |
| 868 | motivation | 1 | 15 | 665 | 846 |
| 868 | Microfluidics | 2 | 15 | 285 | 569 |
| 868 | Geodynamics | 1 | 15 | 1,188 | 1,341 |
| 868 | Proteome | 1 | 15 | 1,441 | 1,799 |
| 868 | Eastern Europe | 4 | 15 | 746 | 1,275 |
| 868 | Learning | 1 | 15 | 1,742 | 2,004 |
| 868 | Social work | 1 | 15 | 2,063 | 2,025 |
| 868 | wood | 2 | 15 | 567 | 807 |
| 868 | vitamin C | 1 | 15 | 713 | 999 |
| 868 | vitamin E | 1 | 15 | 713 | 999 |
| 887 | Immunochemistry | 1 | 14 | 1,369 | 1,546 |
| 887 | Immunotoxicology | 1 | 14 | 589 | 718 |
| 887 | Shape Memory Alloys | 1 | 14 | 91 | 107 |
| 887 | elasticity | 1 | 14 | 425 | 442 |
| 887 | Shape memory polymers | 1 | 14 | 91 | 107 |
| 887 | Shape Memory Effect | 1 | 14 | 91 | 107 |
| 887 | Roads | 2 | 14 | 766 | 1,010 |
| 887 | Soviet Union | 2 | 14 | 898 | 1,006 |
| 887 | Eigenvalues | 5 | 14 | 160 | 185 |
| 896 | Ecological Engineering | 1 | 13 | 1,105 | 1,592 |
| 896 | Bioremediation | 1 | 13 | 1,516 | 1,909 |
| 896 | Water quality | 1 | 13 | 544 | 758 |
| 896 | Marine Pollution | 1 | 13 | 1,814 | 2,291 |
| 896 | Extracellular matrix | 1 | 13 | 372 | 578 |
| 896 | bioluminescence | 1 | 13 | 730 | 779 |
| 896 | Water chemistry | 1 | 13 | 783 | 952 |
| 896 | transport vesicles | 1 | 13 | 406 | 688 |
| 896 | collagen | 1 | 13 | 395 | 594 |
| 905 | Neuroimaging | 1 | 12 | 454 | 554 |
| 905 | Altitude Sickness | 1 | 12 | 269 | 352 |
| 905 | Law and Economics | 1 | 12 | 567 | 535 |
| 905 | Semiotics | 1 | 12 | 718 | 478 |
| 905 | DNS | 1 | 12 | 819 | 1,067 |
| 905 | optical instruments | 1 | 12 | 521 | 580 |
| 905 | Protective coatings | 1 | 12 | 360 | 387 |
| 905 | Altitude | 1 | 12 | 269 | 352 |
| 905 | optical phenomena | 1 | 12 | 229 | 313 |
| 905 | administrative agencies | 1 | 12 | 552 | 589 |
| 905 | winds | 1 | 12 | 236 | 258 |
| 905 | infrared technology | 6 | 12 | 127 | 336 |
| 905 | Navier-Stokes equations | 4 | 12 | 120 | 295 |
| 905 | Fluorescence | 2 | 12 | 647 | 1,032 |
| 919 | Cartography | 1 | 11 | 865 | 847 |
| 919 | Health Services Research | 2 | 11 | 1,756 | 2,661 |
| 919 | Number Theory | 6 | 11 | 569 | 1,124 |
| 919 | Multiscale Modeling | 2 | 11 | 95 | 146 |
| 919 | Sports | 4 | 11 | 1,750 | 2,701 |
| 919 | Visual Perception | 1 | 11 | 1,840 | 2,107 |
| 919 | Securities | 1 | 11 | 700 | 906 |
| 919 | Host-parasite interactions | 1 | 11 | 1,588 | 2,093 |
| 919 | Memory | 1 | 11 | 1,998 | 2,391 |
| 919 | Attention | 1 | 11 | 1,925 | 2,299 |
| 919 | tillage | 3 | 11 | 400 | 1,063 |
| 919 | Perception | 1 | 11 | 2,042 | 2,324 |
| 919 | Uncertainty | 5 | 11 | 112 | 414 |
| 932 | Occupational Therapy | 4 | 10 | 855 | 1,544 |
| 932 | Surgery | 2 | 10 | 1,452 | 2,011 |
| 932 | Architecture | 1 | 10 | 940 | 885 |
| 932 | Cognitive Psychology | 1 | 10 | 759 | 819 |
| 932 | Structuralism | 1 | 10 | 290 | 471 |
| 932 | Social Networks | 1 | 10 | 661 | 877 |
| 932 | Geographic information systems | 2 | 10 | 1,390 | 2,079 |
| 932 | foreign exchange | 1 | 10 | 600 | 799 |
| 932 | isomerism | 1 | 10 | 632 | 819 |
| 932 | Vocational guidance | 1 | 10 | 1,413 | 1,694 |
| 932 | peptides | 1 | 10 | 1,323 | 1,617 |
| 932 | Social behavior | 3 | 10 | 1,134 | 2,076 |
| 932 | Capitalism | 1 | 10 | 392 | 500 |
| 932 | Chemical reactors | 3 | 10 | 156 | 332 |
| 932 | Chirality | 1 | 10 | 632 | 819 |
| 947 | Applied Mathematics | 2 | 9 | 347 | 326 |
| 947 | Medical Imaging | 1 | 9 | 372 | 457 |
| 947 | Magnetic Resonance Imaging | 1 | 9 | 620 | 800 |
| 947 | cosmic rays | 3 | 9 | 425 | 859 |
| 947 | Cell survival | 1 | 9 | 444 | 768 |
| 947 | color | 1 | 9 | 490 | 636 |
| 947 | ADA | 1 | 9 | 97 | 41 |
| 947 | Plasma devices | 3 | 9 | 292 | 635 |
| 947 | molecular chaperones | 1 | 9 | 500 | 782 |
| 956 | Zoology | 6 | 8 | 1,832 | 3,462 |
| 956 | Food Science | 2 | 8 | 305 | 731 |
| 956 | Orthopedics | 1 | 8 | 1,707 | 2,054 |
| 956 | Phytochemistry | 1 | 8 | 642 | 1,003 |
| 956 | Neurosurgery | 1 | 8 | 1,174 | 1,504 |
| 956 | Hemostasis | 1 | 8 | 940 | 1,157 |
| 956 | Thrombosis | 1 | 8 | 1,215 | 1,556 |
| 956 | Phytoremediation | 1 | 8 | 642 | 1,003 |
| 956 | environmental remediation | 1 | 8 | 765 | 1,138 |
| 956 | Bioreactors | 1 | 8 | 642 | 1,003 |
| 956 | Semigroups | 1 | 8 | 560 | 494 |
| 956 | weather forecasting | 1 | 8 | 319 | 514 |
| 956 | musculoskeletal system | 1 | 8 | 274 | 439 |
| 956 | Respiration | 1 | 8 | 1,772 | 2,250 |
| 970 | Experimental Design | 1 | 7 | 445 | 521 |
| 970 | Algebra | 4 | 7 | 1,320 | 1,848 |
| 970 | Mathematical Economics | 3 | 7 | 317 | 598 |
| 970 | Psycholinguistics | 2 | 7 | 1,065 | 1,693 |
| 970 | Population Genetics | 4 | 7 | 984 | 2,159 |
| 970 | Reproductive health | 1 | 7 | 1,221 | 1,663 |
| 970 | air quality | 1 | 7 | 565 | 920 |
| 970 | Sequential Analysis | 1 | 7 | 180 | 196 |
| 970 | international trade | 2 | 7 | 931 | 1,544 |
| 970 | Submersibles | 1 | 7 | 28 | 64 |
| 970 | synthesis | 1 | 7 | 1,658 | 1,920 |
| 970 | Philippines | 1 | 7 | 258 | 424 |
| 970 | sports equipment | 1 | 7 | 125 | 165 |
| 983 | Photography | 5 | 6 | 855 | 1,201 |
| 983 | Conservation Biology | 4 | 6 | 957 | 2,116 |
| 983 | Artificial Organs | 1 | 6 | 852 | 1,095 |
| 983 | diffusion | 3 | 6 | 332 | 464 |
| 983 | Intelligence | 1 | 6 | 435 | 625 |
| 983 | Smoking | 1 | 6 | 1,058 | 1,534 |
| 983 | Globalization | 1 | 6 | 1,053 | 1,461 |
| 983 | Coding Theory | 1 | 6 | 664 | 745 |
| 983 | Plant tissue culture | 1 | 6 | 1,125 | 1,560 |
| 983 | Genetic regulation | 2 | 6 | 1,129 | 1,890 |
| 983 | starch | 1 | 6 | 614 | 907 |
| 983 | Radioisotopes | 2 | 6 | 1,242 | 1,874 |
| 983 | Chemical processes | 2 | 6 | 744 | 1,387 |
| 983 | Solutions | 1 | 6 | 712 | 933 |
| 983 | Auditing | 1 | 6 | 649 | 881 |
| 983 | Soundproofing | 3 | 6 | 85 | 230 |
| 983 | Ore deposits | 1 | 6 | 759 | 1,005 |
| 983 | Plant cell culture | 1 | 6 | 1,047 | 1,535 |