| 1 | Chemistry | 982 | 25.5K | 417 | 627 |
| 2 | Physics | 1,116 | 15.9K | 377 | 933 |
| 3 | Materials | 383 | 11.2K | 446 | 558 |
| 4 | Nanotechnology | 293 | 10.9K | 376 | 453 |
| 5 | Colloids | 290 | 10.4K | 198 | 216 |
| 6 | Evolutionary Computation | 26 | 10.4K | 61 | 9 |
| 7 | Biochemistry | 373 | 10.3K | 832 | 914 |
| 8 | Nuclear Physics | 400 | 10.0K | 451 | 511 |
| 9 | Genetic algorithms | 14 | 9.5K | 84 | 10 |
| 10 | Mathematics | 417 | 9.3K | 414 | 225 |
| 11 | Surface Chemistry | 241 | 9.2K | 247 | 225 |
| 12 | Manufacturing Processes | 208 | 8.5K | 86 | 50 |
| 13 | Electrical Engineering | 221 | 7.3K | 170 | 75 |
| 14 | Materials Science | 265 | 6.8K | 319 | 488 |
| 15 | Artificial Intelligence | 220 | 6.3K | 148 | 243 |
| 16 | Chemical Engineering | 236 | 6.2K | 403 | 570 |
| 17 | Biomedical Engineering | 177 | 6.2K | 436 | 421 |
| 18 | Environmental Health | 102 | 6.0K | 705 | 555 |
| 19 | Pollution | 149 | 5.9K | 582 | 699 |
| 20 | Biotechnology | 155 | 5.8K | 624 | 738 |
| 21 | actuators | 105 | 5.8K | 141 | 89 |
| 21 | transducers | 105 | 5.8K | 141 | 89 |
| 23 | Medicinal plants | 79 | 5.6K | 69 | 24 |
| 24 | Pharmacognosy | 77 | 5.6K | 154 | 56 |
| 25 | Production Engineering | 135 | 5.5K | 98 | 36 |
| 26 | Environment | 119 | 5.4K | 625 | 777 |
| 27 | Pharmacology | 156 | 5.3K | 648 | 593 |
| 28 | Molecular Biology | 195 | 5.3K | 917 | 1154 |
| 29 | Biocompatible Materials | 101 | 5.2K | 578 | 578 |
| 30 | Analytical Chemistry | 271 | 5.0K | 276 | 509 |
| 31 | Toxicology | 120 | 5.0K | 547 | 482 |
| 32 | Physical Chemistry | 141 | 4.7K | 151 | 207 |
| 33 | Energy Policy | 92 | 4.7K | 232 | 236 |
| 34 | Nanostructured Materials | 96 | 4.6K | 467 | 358 |
| 35 | Electronics | 449 | 4.6K | 90 | 285 |
| 36 | Quantum Gravity | 136 | 4.4K | 407 | 423 |
| 37 | Medicine | 106 | 4.0K | 1539 | 1401 |
| 38 | Engineering | 300 | 3.9K | 115 | 254 |
| 39 | Ecology | 103 | 3.9K | 988 | 1104 |
| 40 | Microbiology | 121 | 3.7K | 911 | 1075 |
| 41 | Biology | 123 | 3.7K | 1250 | 1694 |
| 42 | Pharmaceutical Chemistry | 142 | 3.7K | 356 | 471 |
| 43 | Renewable Energy Sources | 82 | 3.6K | 248 | 421 |
| 44 | Catalysis | 104 | 3.4K | 662 | 757 |
| 45 | Polymers | 189 | 3.4K | 499 | 690 |
| 46 | Environmental Engineering | 108 | 3.4K | 352 | 494 |
| 47 | Science | 172 | 3.4K | 1112 | 1853 |
| 48 | Biochemical Engineering | 70 | 3.4K | 565 | 681 |
| 49 | Environmental monitoring | 101 | 3.3K | 372 | 505 |
| 50 | Information Systems | 24 | 3.3K | 293 | 43 |
| 51 | environmental protection | 93 | 3.3K | 305 | 373 |
| 52 | Geology | 222 | 3.3K | 247 | 453 |
| 53 | Earth Sciences | 177 | 3.2K | 184 | 415 |
| 54 | Astrophysics | 223 | 3.1K | 429 | 786 |
| 55 | Geophysics | 217 | 3.1K | 343 | 581 |
| 56 | mass transfer | 88 | 3.0K | 143 | 162 |
| 57 | Statistical physics | 171 | 3.0K | 439 | 580 |
| 58 | Organic Chemistry | 108 | 2.9K | 393 | 447 |
| 59 | Solid State Physics | 181 | 2.8K | 538 | 697 |
| 60 | Crystal growth | 76 | 2.7K | 34 | 32 |
| 61 | Environmental Toxicology | 37 | 2.7K | 467 | 260 |
| 62 | Mechanical Engineering | 132 | 2.7K | 150 | 144 |
| 63 | Automation | 64 | 2.6K | 356 | 397 |
| 64 | Technology | 186 | 2.6K | 239 | 504 |
| 65 | Operations Research | 101 | 2.6K | 191 | 270 |
| 66 | Electrochemistry | 105 | 2.5K | 690 | 641 |
| 67 | environmental pollution | 76 | 2.5K | 726 | 862 |
| 68 | Semiconductors | 143 | 2.5K | 94 | 103 |
| 69 | Food | 37 | 2.4K | 741 | 433 |
| 70 | System analysis | 92 | 2.4K | 189 | 212 |
| 71 | nanoscience | 62 | 2.4K | 530 | 620 |
| 72 | Detectors | 114 | 2.4K | 45 | 57 |
| 73 | energy conservation | 37 | 2.4K | 395 | 352 |
| 74 | polymerization | 140 | 2.4K | 500 | 695 |
| 75 | Solid State Chemistry | 120 | 2.4K | 210 | 250 |
| 76 | Nutrition | 35 | 2.4K | 1089 | 711 |
| 77 | Image Processing | 72 | 2.4K | 286 | 346 |
| 78 | Cybernetics | 34 | 2.4K | 340 | 233 |
| 79 | Spectrum analysis | 138 | 2.3K | 560 | 885 |
| 80 | Information Science | 45 | 2.3K | 428 | 295 |
| 81 | Bioorganic chemistry | 85 | 2.3K | 336 | 446 |
| 82 | Neural circuitry | 51 | 2.3K | 238 | 202 |
| 83 | Organometallic chemistry | 122 | 2.2K | 53 | 72 |
| 84 | Optics | 172 | 2.2K | 500 | 675 |
| 85 | Herbal medicine | 30 | 2.0K | 81 | 34 |
| 86 | Multimedia Systems | 120 | 2.0K | 56 | 106 |
| 87 | Photochemistry | 99 | 2.0K | 46 | 145 |
| 88 | Condensed Matter | 118 | 2.0K | 618 | 772 |
| 89 | Solar Energy | 53 | 2.0K | 157 | 184 |
| 90 | drug evaluation | 59 | 2.0K | 63 | 53 |
| 91 | Nanostructures | 52 | 1.9K | 216 | 319 |
| 92 | Signal Processing | 88 | 1.9K | 354 | 513 |
| 93 | Drug delivery systems | 57 | 1.9K | 129 | 225 |
| 94 | Mathematical Physics | 130 | 1.9K | 334 | 470 |
| 95 | Drug design | 62 | 1.8K | 93 | 141 |
| 96 | Mineralogy | 69 | 1.8K | 206 | 274 |
| 97 | Photobiology | 89 | 1.7K | 14 | 78 |
| 98 | Research | 58 | 1.7K | 1878 | 1770 |
| 99 | Bioengineering | 64 | 1.7K | 785 | 1065 |
| 100 | Combustion | 40 | 1.7K | 248 | 191 |
| 101 | Economics | 113 | 1.7K | 613 | 774 |
| 102 | Metallurgy | 127 | 1.7K | 194 | 409 |
| 103 | Biophysics | 72 | 1.6K | 1142 | 1336 |
| 104 | Systems Engineering | 73 | 1.6K | 190 | 263 |
| 105 | Molecular Spectroscopy | 78 | 1.6K | 112 | 140 |
| 106 | Luminescence | 55 | 1.6K | 96 | 39 |
| 107 | Environmental Policy | 76 | 1.6K | 403 | 767 |
| 108 | India | 222 | 1.6K | 10 | 13 |
| 109 | Environmental pollutants | 40 | 1.6K | 375 | 353 |
| 110 | Biomass Energy | 49 | 1.6K | 404 | 611 |
| 111 | Measurement | 71 | 1.6K | 74 | 87 |
| 112 | Clinical Chemistry | 38 | 1.5K | 638 | 582 |
| 113 | Bioinorganic chemistry | 64 | 1.5K | 152 | 195 |
| 114 | Petrology | 44 | 1.4K | 225 | 273 |
| 115 | Nonlinear Dynamics | 66 | 1.4K | 398 | 473 |
| 116 | Numerical Analysis | 110 | 1.4K | 136 | 298 |
| 117 | Pharmaceutical Technology | 56 | 1.3K | 146 | 243 |
| 118 | Surface-Active Agents | 28 | 1.3K | 158 | 128 |
| 118 | Surface properties | 28 | 1.3K | 176 | 141 |
| 120 | Fuzzy systems | 74 | 1.3K | 74 | 75 |
| 121 | Computational Biology | 65 | 1.3K | 326 | 550 |
| 122 | Pharmacy | 33 | 1.3K | 499 | 397 |
| 123 | pollutants | 24 | 1.3K | 476 | 360 |
| 124 | Water | 28 | 1.3K | 716 | 780 |
| 125 | health planning | 34 | 1.2K | 462 | 262 |
| 126 | Radio | 85 | 1.2K | 170 | 381 |
| 127 | pigments | 9 | 1.2K | 421 | 69 |
| 128 | environmental exposure | 23 | 1.2K | 493 | 316 |
| 129 | solar power | 21 | 1.2K | 149 | 123 |
| 129 | solar cells | 21 | 1.2K | 178 | 151 |
| 131 | Production Management | 14 | 1.2K | 472 | 389 |
| 132 | Composite Materials | 35 | 1.2K | 752 | 838 |
| 132 | computer networks | 71 | 1.2K | 298 | 500 |
| 134 | Metals | 59 | 1.2K | 327 | 487 |
| 135 | Sedimentary rocks | 37 | 1.2K | 25 | 60 |
| 135 | lasers | 38 | 1.2K | 478 | 343 |
| 137 | Computer Science | 58 | 1.2K | 174 | 180 |
| 138 | Process Control | 14 | 1.2K | 338 | 247 |
| 139 | food technology | 33 | 1.2K | 654 | 601 |
| 140 | Bioinformatics | 53 | 1.2K | 318 | 494 |
| 141 | Building Materials | 8 | 1.2K | 1091 | 580 |
| 142 | Wireless Communication Systems | 85 | 1.1K | 293 | 519 |
| 143 | Sustainable Development | 53 | 1.1K | 158 | 414 |
| 144 | Sustainable Engineering | 17 | 1.1K | 577 | 396 |
| 145 | Asia | 63 | 1.1K | 249 | 276 |
| 146 | Biopharmaceutics | 35 | 1.1K | 141 | 193 |
| 147 | Geochemistry | 48 | 1.1K | 474 | 597 |
| 148 | Industrial Engineering | 51 | 1.1K | 267 | 367 |
| 149 | Solitons | 55 | 1.1K | 54 | 107 |
| 149 | Fractals | 55 | 1.1K | 54 | 107 |
| 149 | Chaos | 55 | 1.1K | 54 | 107 |
| 149 | concrete | 8 | 1.1K | 550 | 299 |
| 153 | miniaturization | 20 | 1.1K | 618 | 591 |
| 154 | Oncology | 20 | 981 | 648 | 920 |
| 155 | Developing countries | 29 | 974 | 537 | 469 |
| 156 | Radio waves | 22 | 959 | 284 | 244 |
| 157 | Engineering Mathematics | 76 | 953 | 155 | 289 |
| 158 | Water pollution | 26 | 941 | 879 | 910 |
| 159 | Molecular structure | 54 | 930 | 352 | 596 |
| 160 | Calorimetry | 22 | 929 | 264 | 102 |
| 160 | Thermal analysis | 22 | 929 | 264 | 102 |
| 162 | Astronomy | 46 | 918 | 812 | 998 |
| 163 | Structure-activity relationship | 55 | 912 | 2 | 55 |
| 164 | Swarm Intelligence | 12 | 899 | 52 | 40 |
| 165 | energy resources | 12 | 885 | 601 | 531 |
| 166 | Cement | 4 | 877 | 495 | 223 |
| 167 | Telecommunication | 161 | 869 | 190 | 728 |
| 168 | Chemical analysis | 11 | 863 | 503 | 192 |
| 169 | Green Chemistry | 13 | 862 | 799 | 672 |
| 170 | Nanochemistry | 24 | 855 | 200 | 108 |
| 171 | Geodynamics | 35 | 830 | 195 | 307 |
| 172 | Membranes | 32 | 828 | 480 | 656 |
| 173 | coal | 19 | 825 | 557 | 531 |
| 174 | Fluid Dynamics | 42 | 824 | 177 | 252 |
| 175 | Environmental Management | 30 | 822 | 811 | 1138 |
| 176 | Physical organic chemistry | 40 | 816 | 208 | 283 |
| 177 | Optical materials | 40 | 805 | 666 | 986 |
| 178 | Systems Analysis | 28 | 799 | 184 | 138 |
| 179 | Cytology | 36 | 797 | 1119 | 1484 |
| 180 | Ore deposits | 34 | 796 | 89 | 122 |
| 181 | Economic History | 70 | 790 | 477 | 753 |
| 182 | Ceramic materials | 32 | 786 | 237 | 283 |
| 183 | Nanoparticles | 28 | 776 | 466 | 596 |
| 184 | Microstructure | 49 | 771 | 32 | 40 |
| 185 | Heat Exchangers | 24 | 761 | 308 | 382 |
| 186 | pharmaceutical industry | 41 | 757 | 22 | 41 |
| 187 | sanitation | 9 | 752 | 779 | 709 |
| 188 | Chromatographic analysis | 28 | 738 | 458 | 368 |
| 189 | Food Microbiology | 2 | 733 | 1333 | 423 |
| 190 | Remote Sensing | 12 | 725 | 657 | 210 |
| 190 | Emulsions | 20 | 725 | 53 | 13 |
| 192 | Robotics | 21 | 722 | 575 | 473 |
| 193 | Industrial Microbiology | 23 | 714 | 520 | 688 |
| 194 | Medical Laboratory Science | 69 | 706 | 218 | 746 |
| 195 | silicon | 38 | 698 | 16 | 18 |
| 196 | China | 27 | 697 | 784 | 664 |
| 197 | Geography | 7 | 692 | 1288 | 637 |
| 198 | Chemical structure | 33 | 681 | 16 | 25 |
| 199 | pottery | 42 | 679 | 159 | 292 |
| 200 | Antibacterial agents | 10 | 674 | 261 | 134 |
| 201 | Computational Chemistry | 4 | 665 | 579 | 200 |
| 202 | Cell Biology | 31 | 656 | 1120 | 1580 |
| 203 | Minerals | 13 | 655 | 214 | 115 |
| 204 | Environmental Geochemistry | 12 | 638 | 100 | 36 |
| 205 | Chromatography | 20 | 636 | 505 | 376 |
| 206 | Economic Development | 26 | 628 | 380 | 567 |
| 207 | Fluid Mechanics | 35 | 626 | 338 | 454 |
| 208 | mathematical analysis | 46 | 624 | 666 | 646 |
| 209 | biological factors | 38 | 623 | 332 | 578 |
| 210 | Informatics | 7 | 621 | 501 | 197 |
| 211 | Microwaves | 78 | 606 | 177 | 348 |
| 212 | Environmental Geology | 26 | 603 | 360 | 494 |
| 213 | Cancer | 22 | 597 | 1003 | 1191 |
| 214 | natural disasters | 26 | 594 | 211 | 356 |
| 215 | Natural history | 11 | 583 | 1542 | 2113 |
| 216 | Bacteriology | 14 | 582 | 749 | 803 |
| 217 | Ceramics | 21 | 581 | 431 | 377 |
| 218 | Information Technology | 21 | 578 | 741 | 798 |
| 218 | Radiography | 3 | 578 | 658 | 358 |
| 220 | Molecular evolution | 23 | 577 | 415 | 606 |
| 221 | natural products | 49 | 576 | 228 | 470 |
| 222 | Microelectronics | 46 | 569 | 347 | 741 |
| 223 | Carbon | 13 | 561 | 559 | 665 |
| 224 | Marine Biology | 22 | 558 | 931 | 1003 |
| 225 | Environmental Chemistry | 30 | 557 | 432 | 940 |
| 226 | Cosmology | 38 | 550 | 69 | 209 |
| 227 | Computer-Aided Design | 38 | 537 | 179 | 338 |
| 228 | Energy Storage | 17 | 535 | 417 | 458 |
| 229 | drugs | 13 | 532 | 854 | 668 |
| 230 | Glass | 16 | 528 | 370 | 352 |
| 231 | Climatology | 20 | 527 | 576 | 686 |
| 232 | machinery | 25 | 521 | 131 | 145 |
| 233 | software | 9 | 518 | 528 | 354 |
| 234 | water reuse | 13 | 511 | 42 | 42 |
| 235 | Meteorology | 25 | 499 | 654 | 974 |
| 235 | Mechanics | 39 | 499 | 202 | 326 |
| 237 | synthesis | 35 | 487 | 95 | 122 |
| 238 | Ocean Engineering | 14 | 485 | 777 | 686 |
| 239 | Cosmochemistry | 9 | 480 | 466 | 353 |
| 240 | Power Electronics | 29 | 476 | 263 | 520 |
| 241 | Energy Consumption | 3 | 473 | 354 | 174 |
| 242 | Electrophoresis | 13 | 468 | 712 | 573 |
| 243 | nuclear astrophysics | 27 | 463 | 74 | 190 |
| 244 | Immunology | 18 | 453 | 1134 | 1324 |
| 245 | particles | 9 | 452 | 466 | 223 |
| 246 | Magnetic Materials | 19 | 443 | 563 | 615 |
| 247 | clay | 13 | 435 | 266 | 330 |
| 248 | Climate change | 2 | 433 | 1081 | 800 |
| 248 | Biodiversity conservation | 2 | 433 | 1598 | 963 |
| 248 | Eutrophication | 2 | 433 | 996 | 793 |
| 251 | Nuclear Chemistry | 39 | 432 | 155 | 253 |
| 252 | food industry | 5 | 426 | 515 | 94 |
| 253 | Computer Graphics | 20 | 423 | 597 | 654 |
| 254 | Computational Complexity | 18 | 420 | 242 | 140 |
| 255 | Japan | 28 | 418 | 348 | 420 |
| 256 | Plastics | 35 | 416 | 308 | 559 |
| 257 | economic policy | 42 | 415 | 474 | 690 |
| 257 | Africa | 27 | 415 | 331 | 308 |
| 259 | Engineering Geology | 17 | 413 | 523 | 604 |
| 259 | Drug targeting | 11 | 413 | 73 | 91 |
| 259 | Economic Thought | 9 | 413 | 125 | 176 |
| 259 | economic conditions | 10 | 413 | 209 | 202 |
| 263 | Fracture mechanics | 22 | 410 | 486 | 564 |
| 264 | Communication | 9 | 409 | 1168 | 873 |
| 265 | Tribology | 27 | 400 | 258 | 411 |
| 266 | internet | 10 | 389 | 792 | 673 |
| 267 | econometric models | 11 | 385 | 175 | 163 |
| 268 | Soft Condensed Matter | 21 | 383 | 353 | 481 |
| 269 | Dynamics | 32 | 380 | 314 | 469 |
| 270 | Microbial Ecology | 11 | 379 | 1066 | 1257 |
| 270 | Inflammation | 9 | 379 | 529 | 563 |
| 272 | Combinatorial chemistry | 2 | 373 | 808 | 388 |
| 273 | Genetics | 18 | 372 | 1285 | 1705 |
| 274 | Cognitive Science | 16 | 371 | 554 | 743 |
| 275 | Internet of Things | 5 | 370 | 834 | 529 |
| 276 | Green Technology | 20 | 363 | 31 | 46 |
| 277 | Geographic information systems | 16 | 352 | 309 | 263 |
| 278 | Microwave devices | 12 | 350 | 196 | 156 |
| 279 | Molecules | 32 | 349 | 415 | 602 |
| 280 | Computer Engineering | 18 | 347 | 182 | 212 |
| 280 | Logistics | 19 | 347 | 99 | 258 |
| 280 | Human-Computer Interaction | 22 | 347 | 372 | 670 |
| 283 | global environmental change | 12 | 344 | 292 | 458 |
| 283 | free radicals | 3 | 344 | 1170 | 843 |
| 285 | soil microbiology | 5 | 338 | 1034 | 975 |
| 286 | Materials Engineering | 20 | 334 | 104 | 117 |
| 287 | Physiology | 16 | 330 | 1677 | 1988 |
| 288 | Marine Pollution | 14 | 322 | 465 | 684 |
| 289 | Pharmacokinetics | 6 | 321 | 526 | 391 |
| 289 | Metallography | 13 | 321 | 305 | 327 |
| 291 | proteins | 16 | 319 | 785 | 911 |
| 292 | Hazardous waste | 8 | 314 | 498 | 631 |
| 293 | Coastal zone management | 9 | 312 | 289 | 244 |
| 293 | fuel cells | 15 | 312 | 497 | 787 |
| 295 | Bioremediation | 16 | 310 | 141 | 338 |
| 296 | Radiation | 25 | 308 | 628 | 840 |
| 297 | Biosensors | 5 | 307 | 937 | 930 |
| 298 | Medical Technology | 7 | 306 | 911 | 707 |
| 298 | hazard mitigation | 21 | 306 | 140 | 363 |
| 300 | Crystallography | 46 | 304 | 303 | 453 |
| 301 | management | 16 | 299 | 1542 | 1939 |
| 302 | Control Theory | 23 | 296 | 606 | 773 |
| 303 | Nuclear Engineering | 12 | 294 | 694 | 499 |
| 304 | Organometallic compounds | 26 | 293 | 351 | 631 |
| 304 | Middle East | 5 | 293 | 764 | 237 |
| 304 | genome | 4 | 293 | 1084 | 905 |
| 307 | Alternative Medicine | 15 | 292 | 472 | 672 |
| 307 | complementary therapies | 15 | 292 | 517 | 697 |
| 307 | biological monitoring | 12 | 292 | 113 | 190 |
| 310 | microwave communication systems | 10 | 288 | 162 | 145 |
| 310 | energy development | 24 | 288 | 108 | 487 |
| 310 | biopolymers | 14 | 288 | 486 | 603 |
| 313 | Thermodynamics | 20 | 287 | 327 | 351 |
| 313 | peptides | 14 | 287 | 207 | 209 |
| 315 | Photonics | 10 | 285 | 1039 | 1083 |
| 316 | Earthquake Engineering | 11 | 284 | 710 | 735 |
| 317 | Light | 10 | 281 | 445 | 691 |
| 318 | environmental remediation | 12 | 276 | 47 | 87 |
| 319 | Energy Conversion | 18 | 275 | 435 | 930 |
| 319 | international trade | 12 | 275 | 220 | 268 |
| 321 | Waste management | 13 | 274 | 553 | 562 |
| 322 | Intelligent Control Systems | 38 | 272 | 98 | 258 |
| 323 | Biogeochemistry | 5 | 270 | 768 | 699 |
| 323 | Granular materials | 3 | 270 | 619 | 241 |
| 325 | Anti-inflammatory agents | 7 | 268 | 95 | 70 |
| 326 | sustainability | 10 | 267 | 343 | 571 |
| 327 | radioactive waste | 6 | 266 | 505 | 674 |
| 327 | industrial waste | 6 | 266 | 530 | 675 |
| 329 | Textile industry | 27 | 265 | 93 | 120 |
| 330 | Mechatronics | 11 | 264 | 371 | 447 |
| 331 | Social Sciences | 12 | 262 | 1692 | 1383 |
| 331 | Telecommunication Systems | 35 | 262 | 266 | 657 |
| 333 | Structural Engineering | 10 | 260 | 880 | 817 |
| 333 | Computer Vision | 24 | 260 | 286 | 712 |
| 335 | digital preservation | 3 | 259 | 57 | 16 |
| 336 | micromechanics | 10 | 258 | 275 | 287 |
| 337 | Chromosomes | 9 | 257 | 444 | 531 |
| 338 | Electrochemical Analysis | 10 | 256 | 885 | 856 |
| 339 | Phytotherapy | 5 | 255 | 412 | 289 |
| 340 | Medical innovations | 4 | 253 | 681 | 761 |
| 341 | Medical Physics | 8 | 251 | 880 | 869 |
| 342 | Aging | 5 | 249 | 1765 | 1261 |
| 343 | Parasitology | 13 | 248 | 1079 | 1155 |
| 343 | Semigroups | 8 | 248 | 120 | 17 |
| 345 | Paleontology | 20 | 245 | 453 | 608 |
| 345 | Molecular Pharmacology | 5 | 245 | 587 | 525 |
| 347 | Municipal Engineering | 8 | 244 | 104 | 104 |
| 347 | toxicity testing | 9 | 244 | 203 | 252 |
| 349 | Mining Engineering | 39 | 243 | 62 | 272 |
| 350 | Electromagnetism | 12 | 240 | 463 | 472 |
| 351 | Geriatrics | 4 | 236 | 2071 | 1312 |
| 351 | Developmental Biology | 4 | 236 | 1458 | 1233 |
| 353 | Neurology | 5 | 235 | 2835 | 2421 |
| 354 | Bioelectronics | 4 | 234 | 941 | 984 |
| 355 | Computer Architecture | 9 | 233 | 243 | 159 |
| 355 | data protection | 12 | 233 | 132 | 159 |
| 357 | Public Health | 8 | 232 | 2750 | 2517 |
| 357 | Expert Systems | 17 | 232 | 4 | 44 |
| 357 | vibration | 22 | 232 | 320 | 657 |
| 357 | enzymes | 15 | 232 | 595 | 893 |
| 361 | Software Engineering | 37 | 231 | 157 | 537 |
| 362 | Marine Geology | 10 | 230 | 255 | 316 |
| 363 | Medical Oncology | 13 | 227 | 650 | 923 |
| 363 | Biomechanics | 10 | 227 | 622 | 738 |
| 365 | Optical Communications | 11 | 226 | 322 | 306 |
| 366 | Seismology | 9 | 225 | 223 | 234 |
| 367 | Phytochemistry | 5 | 221 | 133 | 97 |
| 367 | Nonlinear functional analysis | 9 | 221 | 660 | 551 |
| 367 | Phytoremediation | 5 | 221 | 133 | 97 |
| 367 | Bioreactors | 5 | 221 | 133 | 97 |
| 367 | Formal Languages | 11 | 221 | 76 | 32 |
| 372 | Radio wave propagation | 11 | 220 | 307 | 276 |
| 373 | Sociology | 12 | 215 | 1443 | 1544 |
| 374 | Petroleum Geology | 8 | 213 | 279 | 310 |
| 375 | Statistical Mechanics | 10 | 212 | 326 | 294 |
| 375 | bioluminescence | 2 | 212 | 499 | 62 |
| 377 | Chemical kinetics | 32 | 209 | 49 | 174 |
| 378 | Psycholinguistics | 3 | 208 | 900 | 635 |
| 378 | Water quality management | 16 | 208 | 641 | 922 |
| 380 | Agricultural Chemistry | 6 | 207 | 1475 | 1392 |
| 381 | thinking | 2 | 206 | 430 | 134 |
| 381 | Biomass | 5 | 206 | 469 | 513 |
| 381 | language | 2 | 206 | 966 | 519 |
| 384 | Mobile Computing | 12 | 204 | 455 | 609 |
| 385 | Microprocessors | 16 | 203 | 138 | 199 |
| 386 | Systems Theory | 15 | 202 | 68 | 70 |
| 387 | Environmental Law | 3 | 199 | 982 | 960 |
| 387 | Lightweight concrete | 2 | 199 | 518 | 467 |
| 389 | Virology | 4 | 198 | 1890 | 1799 |
| 390 | Boundary Value Problems | 9 | 197 | 376 | 369 |
| 390 | Antenna Arrays | 9 | 197 | 262 | 337 |
| 392 | Carcinogenesis | 8 | 196 | 472 | 625 |
| 392 | Solutions | 12 | 196 | 103 | 134 |
| 394 | Computational Intelligence | 14 | 195 | 159 | 285 |
| 395 | Civil Engineering | 23 | 191 | 416 | 525 |
| 395 | Water quality | 11 | 191 | 30 | 57 |
| 397 | Raman spectroscopy | 10 | 189 | 339 | 449 |
| 398 | Public Policy | 5 | 185 | 1252 | 1087 |
| 398 | Kinetics | 27 | 185 | 36 | 196 |
| 398 | Microbial Biotechnology | 10 | 185 | 357 | 611 |
| 398 | Magnetohydrodynamics | 6 | 185 | 168 | 143 |
| 398 | bioclimatology | 8 | 185 | 464 | 539 |
| 403 | Water chemistry | 11 | 183 | 42 | 91 |
| 404 | Hydrology | 13 | 179 | 1088 | 1467 |
| 404 | Nanoelectronics | 14 | 179 | 283 | 311 |
| 404 | Safety management | 8 | 179 | 220 | 165 |
| 407 | geological modeling | 16 | 178 | 107 | 235 |
| 408 | Transportation | 4 | 177 | 1351 | 1038 |
| 408 | Plant diseases | 1 | 177 | 2361 | 1137 |
| 410 | Wetland ecology | 6 | 176 | 217 | 236 |
| 411 | mutation | 5 | 175 | 396 | 440 |
| 412 | Data Mining | 15 | 173 | 540 | 1099 |
| 412 | Environmental Microbiology | 8 | 173 | 741 | 1142 |
| 412 | Smart Materials | 4 | 173 | 796 | 545 |
| 415 | Diagnostic microbiology | 2 | 172 | 1030 | 963 |
| 416 | Medical Microbiology | 6 | 170 | 1288 | 1522 |
| 417 | Recycling | 1 | 169 | 1024 | 730 |
| 418 | Quantum electronics | 12 | 167 | 770 | 903 |
| 419 | multimedia | 3 | 164 | 484 | 402 |
| 419 | Interactive multimedia | 3 | 164 | 549 | 424 |
| 421 | Geometry | 19 | 163 | 431 | 449 |
| 421 | Porous materials | 7 | 163 | 421 | 335 |
| 423 | Iron | 16 | 162 | 87 | 139 |
| 423 | textile fibers | 9 | 162 | 174 | 143 |
| 425 | Machining | 25 | 161 | 6 | 45 |
| 425 | Global warming | 5 | 161 | 55 | 75 |
| 427 | Watershed management | 8 | 159 | 46 | 52 |
| 427 | United States | 10 | 159 | 2499 | 2704 |
| 429 | Semiconductor industry | 11 | 156 | 247 | 273 |
| 430 | Social Change | 3 | 155 | 1038 | 1061 |
| 431 | drug toxicity | 8 | 154 | 147 | 301 |
| 432 | human behavior | 4 | 152 | 1956 | 2120 |
| 432 | Behavior | 4 | 152 | 2353 | 2386 |
| 434 | Telecommunications | 18 | 151 | 129 | 336 |
| 434 | biological agents | 18 | 151 | 105 | 75 |
| 436 | amino acids | 3 | 149 | 562 | 439 |
| 437 | Atmospheric Physics | 14 | 148 | 634 | 1107 |
| 438 | Genetic engineering | 11 | 146 | 952 | 1466 |
| 438 | Optoelectronic devices | 10 | 146 | 429 | 390 |
| 440 | infrared radiation | 10 | 145 | 234 | 252 |
| 440 | Technological Innovations | 7 | 145 | 606 | 773 |
| 440 | infrared technology | 6 | 145 | 124 | 48 |
| 443 | Pathology | 7 | 144 | 1075 | 1300 |
| 444 | Simulation Methods | 20 | 142 | 176 | 599 |
| 445 | Botany | 7 | 141 | 2356 | 2656 |
| 445 | Immunopharmacology | 7 | 141 | 616 | 775 |
| 445 | microwave antennas | 9 | 141 | 151 | 148 |
| 448 | Animal Behavior | 3 | 139 | 1641 | 1456 |
| 448 | Food Preservation | 13 | 139 | 247 | 399 |
| 448 | Ethology | 3 | 139 | 1292 | 1260 |
| 448 | Input-output analysis | 7 | 139 | 90 | 162 |
| 448 | Psychophysiology | 3 | 139 | 2226 | 1925 |
| 448 | Aquaculture | 3 | 139 | 1337 | 994 |
| 454 | Ecological Engineering | 4 | 138 | 533 | 626 |
| 454 | Paleogeography | 8 | 138 | 566 | 772 |
| 456 | Radiochemistry | 15 | 136 | 327 | 461 |
| 457 | Social policy | 2 | 135 | 1241 | 595 |
| 457 | planning | 2 | 135 | 968 | 410 |
| 457 | Economic planning | 2 | 135 | 671 | 345 |
| 460 | environmental indicators | 4 | 132 | 984 | 1128 |
| 461 | Information Theory | 11 | 131 | 696 | 954 |
| 461 | Quality Control | 8 | 131 | 914 | 1306 |
| 461 | Fiber Optics | 9 | 131 | 507 | 645 |
| 464 | Extreme environments | 2 | 130 | 286 | 220 |
| 465 | Medical Anthropology | 2 | 129 | 1341 | 1101 |
| 466 | Cryptography | 5 | 128 | 476 | 277 |
| 467 | dietary supplements | 3 | 127 | 873 | 724 |
| 468 | Bioavailability | 7 | 126 | 15 | 30 |
| 468 | reasoning | 8 | 126 | 146 | 255 |
| 470 | Visual Communication | 3 | 124 | 447 | 235 |
| 470 | Algorithms | 5 | 124 | 535 | 410 |
| 470 | Image enhancement | 3 | 124 | 348 | 221 |
| 473 | Analytical Biochemistry | 11 | 123 | 823 | 1240 |
| 474 | Paleoclimatology | 5 | 122 | 824 | 922 |
| 474 | Paleoecology | 5 | 122 | 797 | 857 |
| 474 | Enzyme | 6 | 122 | 309 | 559 |
| 477 | Intelligent Transportation Systems | 7 | 121 | 685 | 985 |
| 477 | Antioxidants | 2 | 121 | 830 | 801 |
| 477 | Chemical processes | 20 | 121 | 104 | 355 |
| 477 | vitamin C | 2 | 121 | 495 | 408 |
| 477 | vitamin E | 2 | 121 | 495 | 408 |
| 482 | Oceanography | 7 | 120 | 1020 | 1250 |
| 483 | nucleic acids | 5 | 119 | 1097 | 1329 |
| 484 | ecosystem | 3 | 118 | 1192 | 1212 |
| 484 | Evolution | 5 | 118 | 1288 | 1420 |
| 484 | Biodiversity | 3 | 118 | 2014 | 1622 |
| 487 | Enzyme inhibitors | 5 | 117 | 248 | 305 |
| 487 | finance | 11 | 117 | 1261 | 1653 |
| 489 | Digital electronics | 12 | 116 | 72 | 100 |
| 489 | Information Retrieval | 2 | 116 | 596 | 388 |
| 489 | Soil biology | 1 | 116 | 1229 | 951 |
| 489 | Soil fertility | 1 | 116 | 544 | 359 |
| 489 | Soil ecology | 1 | 116 | 1190 | 747 |
| 494 | Agricultural Engineering | 15 | 115 | 104 | 377 |
| 494 | Muscle contraction | 7 | 115 | 134 | 52 |
| 496 | Cheminformatics | 9 | 114 | 77 | 366 |
| 496 | Fluorescence | 11 | 114 | 102 | 241 |
| 498 | carcinogens | 4 | 113 | 724 | 800 |
| 498 | Recombinant DNA | 9 | 113 | 787 | 1127 |
| 500 | Diet | 3 | 112 | 1619 | 1781 |
| 500 | atmosphere | 8 | 112 | 381 | 683 |
| 502 | Anthropology | 2 | 111 | 1716 | 1005 |
| 502 | Plant physiology | 4 | 111 | 1707 | 1866 |
| 502 | catalytic activity | 3 | 111 | 658 | 646 |
| 505 | Hydrogeology | 1 | 110 | 1055 | 523 |
| 506 | Freeze-Drying | 5 | 109 | 237 | 269 |
| 506 | Hypothermia | 5 | 109 | 237 | 269 |
| 506 | Business | 2 | 109 | 2477 | 2012 |
| 506 | Freeze Drying | 5 | 109 | 237 | 269 |
| 506 | city planning | 4 | 109 | 1331 | 1234 |
| 506 | Microscopy | 9 | 109 | 718 | 906 |
| 512 | Marine Biotechnology | 2 | 108 | 278 | 216 |
| 513 | Climate Change Mitigation | 1 | 107 | 94 | 106 |
| 513 | Genomics | 7 | 107 | 1724 | 2216 |
| 513 | sea level | 1 | 107 | 94 | 106 |
| 516 | Algebra | 17 | 106 | 660 | 760 |
| 516 | Ethnobotany | 1 | 106 | 343 | 225 |
| 516 | Traditional medicine | 1 | 106 | 382 | 229 |
| 516 | ethnobiology | 1 | 106 | 448 | 259 |
| 516 | Ethnomedicine | 1 | 106 | 343 | 225 |
| 521 | Documentation | 1 | 105 | 479 | 210 |
| 522 | Zeolites | 5 | 103 | 710 | 1018 |
| 523 | Molecular cloning | 8 | 102 | 810 | 1148 |
| 523 | Genetic recombination | 8 | 102 | 796 | 1138 |
| 525 | Radiology | 11 | 100 | 617 | 834 |
| 525 | Nonlinear mechanics | 5 | 100 | 311 | 346 |
| 527 | Brain | 2 | 99 | 2400 | 2031 |
| 528 | Nondestructive testing | 7 | 98 | 397 | 525 |
| 529 | Graph Theory | 5 | 97 | 557 | 384 |
| 529 | industrial relations | 2 | 97 | 1008 | 623 |
| 529 | wetland management | 3 | 97 | 142 | 136 |
| 532 | commerce | 9 | 96 | 836 | 1294 |
| 533 | Soil Mechanics | 10 | 95 | 569 | 927 |
| 533 | Rock Mechanics | 10 | 95 | 466 | 792 |
| 535 | mathematical concepts | 6 | 94 | 224 | 233 |
| 536 | Bioenergetics | 4 | 92 | 689 | 855 |
| 537 | Chemical industry | 20 | 91 | 373 | 955 |
| 537 | Industry | 1 | 91 | 433 | 396 |
| 539 | Marine Ecology | 3 | 90 | 744 | 640 |
| 539 | biological evolution | 1 | 90 | 2508 | 1920 |
| 541 | Alloys | 8 | 89 | 113 | 106 |
| 541 | transport vesicles | 1 | 89 | 394 | 448 |
| 543 | Building | 14 | 88 | 209 | 400 |
| 544 | Architectural Design | 13 | 87 | 112 | 283 |
| 544 | Planets | 2 | 87 | 1402 | 1396 |
| 546 | Soil dynamics | 5 | 84 | 382 | 503 |
| 546 | environmental issues | 2 | 84 | 533 | 489 |
| 548 | body temperature | 5 | 83 | 346 | 477 |
| 549 | Genetic Toxicology | 4 | 82 | 326 | 535 |
| 549 | cell interaction | 5 | 82 | 716 | 1066 |
| 551 | Cloud Computing | 3 | 81 | 308 | 381 |
| 551 | Flexible manufacturing systems | 2 | 81 | 530 | 428 |
| 551 | Liquid Crystals | 26 | 81 | 225 | 541 |
| 551 | Microfabrication | 12 | 81 | 94 | 301 |
| 551 | East Asia | 7 | 81 | 314 | 381 |
| 556 | cosmic rays | 10 | 80 | 187 | 330 |
| 557 | Wetland conservation | 3 | 79 | 277 | 281 |
| 557 | mutagens | 2 | 79 | 748 | 817 |
| 557 | Agriculture | 3 | 79 | 1956 | 1794 |
| 557 | Wetlands | 3 | 79 | 292 | 285 |
| 561 | Food additives | 3 | 78 | 1054 | 1295 |
| 561 | food contamination | 3 | 78 | 1013 | 874 |
| 563 | big data | 10 | 77 | 166 | 586 |
| 563 | Finite Element Method | 3 | 77 | 325 | 301 |
| 563 | Nervous system | 2 | 77 | 2281 | 2022 |
| 563 | Imaging systems | 15 | 77 | 176 | 531 |
| 567 | Mathematics Education | 8 | 76 | 233 | 342 |
| 567 | Neuropsychology | 1 | 76 | 2718 | 1925 |
| 567 | Neurophysiology | 1 | 76 | 3087 | 2357 |
| 570 | Neurobiology | 1 | 75 | 1890 | 1554 |
| 570 | Rock deformation | 4 | 75 | 148 | 254 |
| 570 | water supply | 2 | 75 | 977 | 938 |
| 570 | Cellulose | 1 | 75 | 1069 | 743 |
| 570 | Nonlinear systems | 2 | 75 | 739 | 534 |
| 575 | Biological Systems | 4 | 74 | 419 | 576 |
| 576 | Nanomedicine | 2 | 73 | 303 | 350 |
| 576 | Industrial Safety | 5 | 73 | 886 | 1109 |
| 576 | Geomagnetism | 10 | 73 | 313 | 567 |
| 576 | Immunotoxicology | 3 | 73 | 284 | 254 |
| 576 | Computational Fluid Dynamics | 2 | 73 | 776 | 628 |
| 576 | Drying | 3 | 73 | 356 | 396 |
| 576 | DNA repair | 4 | 73 | 212 | 324 |
| 583 | Total Quality Management | 3 | 72 | 545 | 591 |
| 583 | hygiene | 1 | 72 | 861 | 499 |
| 583 | gene mapping | 4 | 72 | 1427 | 1910 |
| 586 | Systems Biology | 3 | 71 | 1287 | 1398 |
| 586 | Oncogenes | 1 | 71 | 1132 | 1179 |
| 586 | patents | 1 | 71 | 180 | 44 |
| 589 | Computational Linguistics | 12 | 70 | 113 | 342 |
| 589 | Health | 2 | 70 | 2268 | 1821 |
| 591 | urban health | 1 | 69 | 429 | 292 |
| 592 | Functional Analysis | 6 | 68 | 1019 | 1129 |
| 592 | Immunotherapy | 4 | 68 | 1281 | 1664 |
| 592 | Human Geography | 6 | 68 | 731 | 967 |
| 592 | Integrative Medicine | 9 | 68 | 98 | 173 |
| 592 | Holistic Health | 9 | 68 | 154 | 406 |
| 592 | cytokines | 4 | 68 | 946 | 1310 |
| 592 | Quantum theory | 5 | 68 | 796 | 867 |
| 599 | Marine resources | 4 | 67 | 541 | 751 |
| 600 | Signal Transduction | 4 | 66 | 1103 | 1481 |
| 600 | Electromagnetic waves | 7 | 66 | 147 | 275 |
| 602 | Neurochemistry | 2 | 65 | 2133 | 2087 |
| 603 | Integrated Circuits | 11 | 63 | 342 | 471 |
| 603 | Coding Theory | 3 | 63 | 377 | 267 |
| 605 | Evolutionary Genetics | 4 | 62 | 516 | 762 |
| 605 | Molecular Epidemiology | 4 | 62 | 516 | 762 |
| 605 | soil management | 1 | 62 | 882 | 764 |
| 605 | tillage | 1 | 62 | 706 | 668 |
| 609 | Microcirculation | 1 | 61 | 724 | 531 |
| 609 | Screening | 3 | 61 | 164 | 188 |
| 609 | Blood vessels | 1 | 61 | 629 | 451 |
| 612 | lighting | 27 | 60 | 4 | 20 |
| 613 | Plant Biotechnology | 4 | 59 | 621 | 897 |
| 613 | Geodesy | 3 | 59 | 748 | 783 |
| 615 | Hydraulic Engineering | 11 | 58 | 411 | 833 |
| 615 | Chromosome mapping | 3 | 58 | 1481 | 1875 |
| 615 | Detergents | 1 | 58 | 125 | 21 |
| 618 | Zoology | 8 | 57 | 1537 | 2048 |
| 618 | Differential Equations | 8 | 57 | 648 | 908 |
| 620 | International Relations | 29 | 56 | 245 | 804 |
| 621 | Humanities | 1 | 55 | 3108 | 1479 |
| 621 | Soil Science | 5 | 55 | 1411 | 1985 |
| 621 | Water Microbiology | 4 | 55 | 336 | 609 |
| 621 | International Finance | 5 | 55 | 1321 | 1774 |
| 621 | carbonate rocks | 6 | 55 | 60 | 86 |
| 626 | Industrial Policy | 3 | 54 | 496 | 583 |
| 626 | Probiotics | 1 | 54 | 425 | 279 |
| 626 | Heterocyclic compounds | 8 | 54 | 562 | 854 |
| 629 | Yeast | 3 | 53 | 398 | 572 |
| 629 | Investments | 1 | 53 | 1012 | 546 |
| 631 | genre | 3 | 52 | 191 | 198 |
| 631 | Biodegradation | 3 | 52 | 736 | 1102 |
| 631 | Marine Geophysics | 3 | 52 | 243 | 271 |
| 634 | Operator theory | 5 | 51 | 305 | 286 |
| 635 | Bifurcation Theory | 1 | 50 | 523 | 289 |
| 635 | monetary policy | 4 | 50 | 18 | 26 |
| 637 | Education | 7 | 49 | 2347 | 3037 |
| 637 | Sedimentology | 5 | 49 | 425 | 781 |
| 637 | Sports | 8 | 49 | 1266 | 1828 |
| 637 | drug development | 3 | 49 | 790 | 1226 |
| 641 | Applied Sciences | 1 | 47 | 56 | 82 |
| 641 | Quality Management | 2 | 47 | 241 | 194 |
| 641 | Applied Mechanics | 1 | 47 | 56 | 82 |
| 641 | Freezing | 5 | 47 | 191 | 284 |
| 641 | Fisheries | 3 | 47 | 1419 | 1518 |
| 646 | Public Administration | 3 | 46 | 1326 | 1301 |
| 646 | Algae | 4 | 46 | 611 | 865 |
| 646 | fishing industry | 2 | 46 | 146 | 136 |
| 649 | Psychology | 3 | 45 | 4095 | 4122 |
| 649 | Linguistics | 4 | 45 | 1140 | 1213 |
| 649 | Industrial Organization | 1 | 45 | 570 | 436 |
| 649 | Ecosystem management | 2 | 45 | 799 | 827 |
| 649 | Aquatic ecosystems | 2 | 45 | 196 | 167 |
| 649 | Sun | 4 | 45 | 284 | 362 |
| 649 | Solar System | 4 | 45 | 612 | 816 |
| 649 | Aquatic ecology | 2 | 45 | 1051 | 1011 |
| 657 | Microbial Genetics | 3 | 44 | 322 | 517 |
| 657 | Ferroelectricity | 5 | 44 | 780 | 874 |
| 657 | prostaglandins | 2 | 44 | 490 | 552 |
| 657 | Vegetation | 3 | 44 | 89 | 67 |
| 657 | Plants | 3 | 44 | 1863 | 2192 |
| 662 | Social Networks | 4 | 42 | 226 | 466 |
| 662 | Online social networks | 4 | 42 | 206 | 399 |
| 664 | Paleobiology | 6 | 41 | 199 | 358 |
| 664 | Electromagnetic compatibility | 4 | 41 | 280 | 403 |
| 664 | radiative transfer | 6 | 41 | 414 | 640 |
| 664 | Mineral resources | 3 | 41 | 640 | 1093 |
| 664 | Eastern Europe | 10 | 41 | 333 | 766 |
| 664 | extraterrestrial environment | 5 | 41 | 398 | 669 |
| 664 | astronomical phenomena | 5 | 41 | 351 | 629 |
| 671 | Database Management | 3 | 40 | 743 | 918 |
| 671 | Health Policy | 1 | 40 | 2687 | 2108 |
| 671 | glycoproteins | 2 | 40 | 511 | 654 |
| 671 | Renaissance | 4 | 40 | 170 | 97 |
| 671 | Glycoconjugates | 2 | 40 | 511 | 654 |
| 671 | Oligosaccharides | 2 | 40 | 299 | 401 |
| 671 | Social work | 1 | 40 | 1994 | 1371 |
| 671 | glycolipids | 2 | 40 | 511 | 654 |
| 671 | Catalysts | 2 | 40 | 842 | 891 |
| 680 | Econometrics | 3 | 39 | 1330 | 1350 |
| 680 | Diagnostic Imaging | 3 | 39 | 1595 | 1766 |
| 680 | Cognitive neuroscience | 4 | 39 | 791 | 1252 |
| 680 | viruses | 1 | 39 | 1546 | 1586 |
| 680 | atmospheric models | 1 | 39 | 808 | 819 |
| 680 | herbs | 4 | 39 | 30 | 61 |
| 680 | Mollusks | 3 | 39 | 202 | 201 |
| 687 | Securities | 3 | 38 | 328 | 598 |
| 687 | Financial Institutions | 3 | 38 | 414 | 593 |
| 689 | Structural dynamics | 4 | 37 | 823 | 1372 |
| 689 | Number Theory | 4 | 37 | 718 | 662 |
| 689 | Cell communication | 2 | 37 | 678 | 967 |
| 692 | Geomorphology | 3 | 35 | 1266 | 1815 |
| 692 | Metabolism | 2 | 35 | 2060 | 2519 |
| 692 | Adhesion | 3 | 35 | 721 | 935 |
| 692 | adhesives | 3 | 35 | 767 | 948 |
| 692 | rehabilitation | 2 | 35 | 2219 | 2412 |
| 697 | Macroeconomics | 13 | 34 | 73 | 485 |
| 697 | Particle Physics | 2 | 34 | 271 | 360 |
| 697 | Avionics | 1 | 34 | 250 | 189 |
| 697 | Sustainable agriculture | 3 | 34 | 690 | 1076 |
| 697 | Quality Assurance | 1 | 34 | 710 | 478 |
| 697 | Nanomanufacturing | 7 | 34 | 42 | 84 |
| 697 | Drug delivery devices | 3 | 34 | 229 | 597 |
| 697 | Seaweed | 2 | 34 | 635 | 827 |
| 705 | Enteral nutrition | 1 | 33 | 1067 | 1133 |
| 705 | Parenteral nutrition | 1 | 33 | 1208 | 1239 |
| 705 | International Business | 1 | 33 | 386 | 278 |
| 708 | Combinatorial optimization | 5 | 32 | 351 | 544 |
| 708 | Thermochemistry | 1 | 32 | 767 | 697 |
| 708 | Earthquake prediction | 1 | 32 | 108 | 48 |
| 708 | Energy Harvesting | 1 | 32 | 650 | 846 |
| 708 | air quality | 3 | 32 | 192 | 458 |
| 708 | Welding | 6 | 32 | 142 | 226 |
| 708 | Earthquakes | 1 | 32 | 583 | 451 |
| 708 | Quality of life | 7 | 32 | 857 | 2035 |
| 708 | Vaccines | 2 | 32 | 1628 | 1948 |
| 717 | Structural biology | 1 | 31 | 158 | 212 |
| 717 | Neuroplasticity | 3 | 31 | 211 | 526 |
| 717 | human development | 3 | 31 | 770 | 1205 |
| 720 | Energy metabolism | 3 | 30 | 531 | 820 |
| 720 | protein | 2 | 30 | 1251 | 1430 |
| 720 | Southeast Asia | 3 | 30 | 364 | 452 |
| 720 | biochemical markers | 2 | 30 | 752 | 922 |
| 720 | Chemical reactors | 2 | 30 | 222 | 136 |
| 720 | Egypt | 3 | 30 | 537 | 1049 |
| 720 | Genes | 3 | 30 | 1033 | 1462 |
| 727 | Photography | 8 | 29 | 642 | 596 |
| 727 | Microorganisms | 1 | 29 | 1407 | 1539 |
| 727 | color | 5 | 29 | 156 | 387 |
| 730 | Immunochemistry | 3 | 28 | 898 | 1255 |
| 730 | soil pollution | 3 | 28 | 542 | 980 |
| 730 | Radiobiology | 2 | 28 | 1163 | 1372 |
| 730 | antibiotics | 1 | 28 | 425 | 464 |
| 730 | Europe | 1 | 28 | 3652 | 3013 |
| 735 | Clinical Biochemistry | 3 | 27 | 1003 | 1393 |
| 735 | Sports Medicine | 1 | 27 | 3034 | 2462 |
| 735 | Heterocyclic chemistry | 3 | 27 | 548 | 666 |
| 735 | Greenhouse gases | 2 | 27 | 336 | 623 |
| 735 | Quantum Communication | 3 | 27 | 169 | 356 |
| 735 | Asymmetric synthesis | 3 | 27 | 82 | 194 |
| 735 | Physical fitness | 1 | 27 | 1493 | 1440 |
| 735 | cell physiology | 2 | 27 | 1388 | 1893 |
| 743 | Thin Films | 1 | 26 | 892 | 720 |
| 743 | Economic reform | 1 | 26 | 26 | 30 |
| 743 | aromatic plants | 1 | 26 | 490 | 320 |
| 743 | Lipids | 9 | 26 | 661 | 1784 |
| 743 | Soviet Union | 9 | 26 | 267 | 708 |
| 748 | Political Science | 4 | 25 | 1422 | 1652 |
| 748 | Optoelectronics | 7 | 25 | 295 | 626 |
| 748 | Water Purification | 4 | 25 | 979 | 1628 |
| 751 | Food Science | 3 | 24 | 193 | 344 |
| 751 | Nanobiotechnology | 1 | 24 | 727 | 1042 |
| 751 | occupational diseases | 2 | 24 | 866 | 1254 |
| 751 | Biotransformation | 1 | 24 | 280 | 243 |
| 751 | Aerosols | 3 | 24 | 501 | 786 |
| 751 | Database Security | 1 | 24 | 192 | 165 |
| 751 | Trademarks | 1 | 24 | 187 | 178 |
| 751 | Culture | 7 | 24 | 678 | 1257 |
| 751 | population geography | 1 | 24 | 667 | 680 |
| 760 | Photogrammetry | 5 | 23 | 600 | 735 |
| 760 | Superconductors | 4 | 23 | 756 | 1006 |
| 760 | plasticity | 1 | 23 | 517 | 691 |
| 760 | Carbohydrates | 2 | 23 | 511 | 740 |
| 764 | Public Relations | 2 | 22 | 563 | 754 |
| 764 | Labor Economics | 6 | 22 | 315 | 738 |
| 764 | Wireless Sensor Networks | 1 | 22 | 58 | 51 |
| 764 | Superconductivity | 2 | 22 | 533 | 615 |
| 768 | Criminology | 1 | 21 | 1326 | 1174 |
| 768 | Educational Technology | 1 | 21 | 2570 | 2566 |
| 768 | Geobiology | 1 | 21 | 659 | 771 |
| 768 | Latin America | 1 | 21 | 1648 | 1191 |
| 768 | Ethnology | 2 | 21 | 1707 | 1795 |
| 768 | Electrophysiology | 2 | 21 | 986 | 1154 |
| 768 | Tropical Medicine | 2 | 21 | 1829 | 2254 |
| 768 | Trace elements | 1 | 21 | 523 | 697 |
| 776 | Machine Learning | 1 | 20 | 570 | 555 |
| 776 | International Law | 11 | 20 | 148 | 284 |
| 776 | Government policy | 1 | 20 | 314 | 338 |
| 776 | stability | 1 | 20 | 213 | 112 |
| 776 | weather forecasting | 1 | 20 | 305 | 405 |
| 776 | Parasites | 4 | 20 | 1308 | 2101 |
| 782 | economic indicators | 5 | 19 | 46 | 209 |
| 782 | Public Finance | 1 | 19 | 377 | 295 |
| 782 | Sound | 5 | 19 | 786 | 1327 |
| 782 | Culture techniques | 1 | 19 | 464 | 440 |
| 782 | World Wide Web | 5 | 19 | 239 | 639 |
| 782 | aerosol | 1 | 19 | 593 | 628 |
| 788 | Ubiquitous computing | 4 | 18 | 193 | 421 |
| 788 | drinking water | 3 | 18 | 111 | 284 |
| 788 | Water treatment | 3 | 18 | 5 | 44 |
| 788 | freshwater biology | 1 | 18 | 1396 | 1484 |
| 792 | Popular culture | 6 | 17 | 324 | 591 |
| 792 | Genetic testing | 1 | 17 | 585 | 582 |
| 792 | Marine mineral resources | 2 | 17 | 198 | 308 |
| 792 | Biomarkers | 1 | 17 | 730 | 788 |
| 792 | Microfluidics | 2 | 17 | 277 | 516 |
| 792 | Ultrasonics | 1 | 17 | 1764 | 2118 |
| 792 | Sonochemistry | 1 | 17 | 1107 | 1530 |
| 792 | North America | 1 | 17 | 1308 | 1291 |
| 792 | Seabed | 2 | 17 | 198 | 308 |
| 801 | Surveying | 1 | 16 | 265 | 180 |
| 801 | Cartography | 1 | 16 | 828 | 695 |
| 801 | Microeconomics | 5 | 16 | 223 | 516 |
| 801 | technical education | 3 | 16 | 677 | 1180 |
| 801 | drug therapy | 1 | 16 | 2018 | 2248 |
| 801 | Steroids | 1 | 16 | 1277 | 1471 |
| 801 | RNA | 1 | 16 | 747 | 950 |
| 808 | Game Theory | 2 | 15 | 686 | 878 |
| 808 | Nuclear Energy | 4 | 15 | 795 | 1347 |
| 808 | Horticulture | 1 | 15 | 1214 | 1296 |
| 808 | Regional Planning | 3 | 15 | 1396 | 2173 |
| 808 | Regional Economics | 3 | 15 | 471 | 890 |
| 808 | Fishery management | 1 | 15 | 1188 | 1301 |
| 808 | Contraception | 1 | 15 | 875 | 1074 |
| 808 | Speech Perception | 1 | 15 | 576 | 694 |
| 808 | auditory perception | 1 | 15 | 691 | 810 |
| 808 | Reproductive health | 1 | 15 | 1174 | 1373 |
| 808 | Biometrics | 1 | 15 | 1353 | 1346 |
| 808 | Oral communication | 1 | 15 | 771 | 832 |
| 808 | biomedicine | 1 | 15 | 872 | 1133 |
| 808 | optical devices | 1 | 15 | 816 | 900 |
| 808 | Speech | 1 | 15 | 1294 | 1390 |
| 823 | Physical Geography | 2 | 14 | 630 | 971 |
| 823 | Ethics | 2 | 14 | 1109 | 1548 |
| 823 | Databases | 3 | 14 | 362 | 615 |
| 823 | Visual Perception | 3 | 14 | 1239 | 1916 |
| 823 | Combinatorial analysis | 3 | 14 | 1028 | 1192 |
| 823 | DNA polymerases | 1 | 14 | 550 | 855 |
| 823 | Meteorites | 3 | 14 | 759 | 1338 |
| 830 | Speech-Language Pathology | 1 | 13 | 527 | 621 |
| 830 | Pediatric Nursing | 1 | 13 | 646 | 797 |
| 830 | Forest Ecology | 1 | 13 | 1410 | 1771 |
| 830 | Coatings | 2 | 13 | 54 | 69 |
| 830 | Law and Economics | 2 | 13 | 395 | 512 |
| 830 | Infertility | 1 | 13 | 981 | 1267 |
| 830 | Postcolonialism | 3 | 13 | 133 | 237 |
| 830 | Taste | 2 | 13 | 379 | 750 |
| 830 | Forest Management | 1 | 13 | 1348 | 1662 |
| 830 | flavor | 2 | 13 | 245 | 595 |
| 830 | smell | 2 | 13 | 379 | 750 |
| 830 | Genetic markers | 1 | 13 | 513 | 658 |
| 830 | automatic speech recognition | 1 | 13 | 324 | 425 |
| 830 | Paint | 2 | 13 | 25 | 67 |
| 830 | Testing | 3 | 13 | 62 | 198 |
| 830 | economic development projects | 1 | 13 | 390 | 514 |
| 830 | wood | 1 | 13 | 765 | 829 |
| 830 | fertility | 1 | 13 | 1062 | 1342 |
| 848 | Multiphase Flow | 3 | 12 | 387 | 823 |
| 848 | electric vehicles | 1 | 12 | 519 | 669 |
| 848 | Serbia | 1 | 12 | 300 | 189 |
| 848 | Cell metabolism | 2 | 12 | 736 | 1305 |
| 852 | Histology | 1 | 11 | 2212 | 2571 |
| 852 | Applied Mathematics | 4 | 11 | 161 | 257 |
| 852 | Serology | 1 | 11 | 860 | 1118 |
| 852 | Fermentation | 2 | 11 | 278 | 526 |
| 852 | Sikhism | 6 | 11 | 8 | 33 |
| 852 | Parasitic Diseases | 2 | 11 | 1905 | 2646 |
| 852 | DNS | 1 | 11 | 805 | 1056 |
| 852 | information warfare | 2 | 11 | 68 | 66 |
| 852 | DNA | 1 | 11 | 967 | 1157 |
| 852 | Fouling | 1 | 11 | 448 | 720 |
| 862 | Philosophy | 4 | 10 | 1318 | 1509 |
| 862 | Conservation Biology | 2 | 10 | 1238 | 1842 |
| 862 | Mutagenesis | 1 | 10 | 790 | 1064 |
| 862 | teratogenic agents | 1 | 10 | 480 | 672 |
| 862 | civilization | 6 | 10 | 734 | 973 |
| 862 | Radioisotopes | 2 | 10 | 1195 | 1608 |
| 862 | aquatic organisms | 1 | 10 | 12 | 74 |
| 862 | Perception | 2 | 10 | 1608 | 2252 |
| 862 | Plasma devices | 1 | 10 | 478 | 608 |
| 862 | venom | 2 | 10 | 889 | 1523 |
| 862 | Toxins | 2 | 10 | 1007 | 1666 |
| 873 | Embryology | 1 | 9 | 1649 | 2068 |
| 873 | Orthopedics | 1 | 9 | 1637 | 1898 |
| 873 | Aerospace Engineering | 1 | 9 | 460 | 484 |
| 873 | Ichnology | 2 | 9 | 86 | 217 |
| 873 | Nuclear Medicine | 2 | 9 | 905 | 1229 |
| 873 | Molecular Genetics | 1 | 9 | 2161 | 2743 |
| 873 | Trace fossils | 2 | 9 | 86 | 217 |
| 873 | Pesticide residues | 2 | 9 | 77 | 320 |
| 873 | Urban Transportation | 1 | 9 | 295 | 446 |
| 873 | Powder Metallurgy | 2 | 9 | 285 | 397 |
| 873 | Sensor Networks | 4 | 9 | 194 | 609 |
| 873 | embryonic development | 1 | 9 | 644 | 898 |
| 873 | cooperation | 2 | 9 | 189 | 351 |
| 873 | Happiness | 1 | 9 | 870 | 1234 |
| 873 | Sintering | 2 | 9 | 55 | 98 |
| 873 | elasticity | 2 | 9 | 301 | 503 |
| 873 | Interfaces | 1 | 9 | 651 | 836 |
| 873 | labor | 1 | 9 | 632 | 621 |
| 873 | Reproduction | 1 | 9 | 2447 | 2836 |
| 873 | Therapeutics | 1 | 9 | 1862 | 2347 |
| 873 | educational planning | 1 | 9 | 727 | 1013 |
| 894 | Statistics | 2 | 8 | 2568 | 3024 |
| 894 | Development Economics | 2 | 8 | 556 | 1002 |
| 894 | Probability | 1 | 8 | 916 | 1146 |
| 894 | Cytogenetics | 1 | 8 | 1613 | 2047 |
| 894 | Risk Management | 1 | 8 | 1154 | 1500 |
| 894 | Natural resources | 1 | 8 | 1150 | 1496 |
| 894 | Metallic Glasses | 1 | 8 | 731 | 956 |
| 894 | Foraminifera | 2 | 8 | 111 | 249 |
| 894 | Socialism | 2 | 8 | 250 | 402 |
| 894 | Financial management | 1 | 8 | 789 | 1157 |
| 894 | Risk | 1 | 8 | 842 | 1136 |
| 894 | nuclear power | 1 | 8 | 725 | 771 |
| 894 | marketing | 2 | 8 | 2154 | 3082 |
| 894 | life | 2 | 8 | 2 | 7 |
| 894 | Climate | 2 | 8 | 706 | 1439 |
| 894 | cultural pluralism | 2 | 8 | 543 | 948 |
| 894 | plant communities | 1 | 8 | 1410 | 1920 |
| 894 | rivers | 1 | 8 | 506 | 765 |
| 894 | Plant cells | 1 | 8 | 1293 | 1848 |
| 894 | packaging | 1 | 8 | 257 | 437 |
| 914 | Structural health monitoring | 1 | 7 | 373 | 595 |
| 914 | War | 2 | 7 | 257 | 530 |
| 914 | Ethnic relations | 1 | 7 | 1045 | 1128 |
| 914 | Cognitive Radio Networks | 1 | 7 | 375 | 533 |
| 914 | Functional equations | 3 | 7 | 210 | 445 |
| 914 | structural stability | 1 | 7 | 516 | 785 |
| 914 | Fixed Point Theory | 1 | 7 | 585 | 578 |
| 914 | Environmental risk assessment | 2 | 7 | 508 | 1086 |
| 914 | Yugoslavia | 3 | 7 | 70 | 120 |
| 914 | training | 2 | 7 | 55 | 113 |
| 914 | Atomic spectroscopy | 3 | 7 | 1083 | 1811 |
| 914 | civil war | 1 | 7 | 111 | 178 |
| 914 | ground penetrating radar | 3 | 7 | 47 | 228 |
| 927 | Environmental Geography | 1 | 6 | 66 | 135 |
| 927 | Marine Meteorology | 3 | 6 | 291 | 624 |
| 927 | Radiation Protection | 1 | 6 | 989 | 1099 |
| 927 | radiation monitoring | 1 | 6 | 896 | 1029 |
| 927 | Risk assessment | 6 | 6 | 340 | 1611 |
| 927 | Mass Spectrometry | 1 | 6 | 1469 | 1855 |
| 927 | Noise control | 3 | 6 | 266 | 191 |
| 927 | Pacific Islands | 1 | 6 | 592 | 806 |
| 927 | optical pattern recognition | 1 | 6 | 297 | 379 |
| 927 | England | 1 | 6 | 328 | 225 |
| 927 | Soundproofing | 3 | 6 | 84 | 221 |
| 927 | probabilities | 1 | 6 | 1776 | 1827 |
| 927 | Landslides | 1 | 6 | 450 | 742 |
| 927 | Radiation dosimetry | 1 | 6 | 754 | 874 |
| 927 | women | 4 | 6 | 744 | 1641 |
| 927 | investigative techniques | 1 | 6 | 302 | 606 |
| 927 | Industrial noise | 3 | 6 | 26 | 99 |
| 927 | Liquid chromatography | 2 | 6 | 641 | 1093 |
| 945 | Geotechnical Engineering | 1 | 5 | 764 | 990 |
| 945 | Occupational Health | 2 | 5 | 1185 | 1982 |
| 945 | Integrated Optics | 1 | 5 | 165 | 210 |
| 945 | industrial hygiene | 2 | 5 | 1190 | 1941 |
| 945 | Business Intelligence | 1 | 5 | 77 | 121 |
| 945 | Entropy | 1 | 5 | 1891 | 2340 |
| 945 | Infrared spectroscopy | 1 | 5 | 684 | 1078 |
| 945 | Protozoa | 1 | 5 | 682 | 972 |
| 945 | Flood control | 1 | 5 | 556 | 865 |
| 945 | foods | 1 | 5 | 281 | 523 |
| 945 | irrigation | 1 | 5 | 586 | 847 |
| 945 | brewing | 1 | 5 | 362 | 492 |
| 945 | drainage | 1 | 5 | 508 | 702 |
| 945 | computable functions | 2 | 5 | 16 | 84 |
| 945 | values | 1 | 5 | 519 | 498 |
| 945 | Fibers | 2 | 5 | 134 | 278 |
| 961 | Literature | 16 | 4 | 275 | 733 |
| 961 | Planetary Science | 1 | 4 | 761 | 1046 |
| 961 | American Literature | 12 | 4 | 219 | 422 |
| 961 | Geosynthetics | 2 | 4 | 113 | 329 |
| 961 | Stochastic Processes | 1 | 4 | 1440 | 1872 |
| 961 | Chemical Oceanography | 1 | 4 | 427 | 657 |
| 961 | Information visualization | 1 | 4 | 379 | 603 |
| 961 | Feminist theory | 1 | 4 | 399 | 519 |
| 961 | Vaccination | 1 | 4 | 414 | 748 |
| 961 | Air Conditioning | 1 | 4 | 379 | 576 |
| 961 | Gender identity | 1 | 4 | 585 | 767 |
| 961 | Shape Memory Alloys | 1 | 4 | 93 | 150 |
| 961 | visualization | 1 | 4 | 2122 | 2014 |
| 961 | Shape memory polymers | 1 | 4 | 93 | 150 |
| 961 | Moon | 1 | 4 | 287 | 380 |
| 961 | Foreign relations | 1 | 4 | 67 | 94 |
| 961 | Shape Memory Effect | 1 | 4 | 93 | 150 |
| 961 | nucleotides | 1 | 4 | 557 | 739 |
| 961 | air | 1 | 4 | 258 | 405 |
| 961 | Ventilation | 1 | 4 | 895 | 1314 |
| 961 | Diplomatic relations | 1 | 4 | 1020 | 1056 |
| 961 | heating | 1 | 4 | 300 | 485 |
| 961 | weather | 1 | 4 | 976 | 1527 |
| 961 | United Kingdom | 1 | 4 | 1919 | 2489 |
| 961 | Decision making | 1 | 4 | 2200 | 2922 |
| 961 | Israel | 1 | 4 | 232 | 294 |
| 961 | Jews | 1 | 4 | 447 | 340 |
| 988 | Epidemiology | 1 | 3 | 3802 | 4770 |
| 988 | Crime prevention | 1 | 3 | 459 | 700 |
| 988 | Immunopathology | 1 | 3 | 1330 | 1797 |
| 988 | Plate Tectonics | 1 | 3 | 477 | 687 |
| 988 | Hydrodynamics | 2 | 3 | 649 | 1260 |
| 988 | Dehydration | 1 | 3 | 20 | 42 |
| 988 | Cryopreservation | 1 | 3 | 20 | 42 |
| 988 | Chemical safety | 1 | 3 | 94 | 142 |
| 988 | Discrete geometry | 1 | 3 | 439 | 579 |
| 988 | Critical theory | 1 | 3 | 359 | 505 |
| 988 | Military Ethics | 1 | 3 | 74 | 124 |
| 988 | risk factors | 1 | 3 | 904 | 1210 |
| 988 | Adaptive control systems | 1 | 3 | 1010 | 1415 |