| 1 | Chemistry | 950 | 24.0K | 433 | 655 |
| 2 | Biochemistry | 454 | 9.9K | 740 | 930 |
| 3 | Materials | 350 | 9.6K | 489 | 616 |
| 4 | Mycology | 82 | 8.5K | 141 | 24 |
| 5 | Fungi | 78 | 8.5K | 68 | 8 |
| 6 | Chemical Engineering | 283 | 8.2K | 336 | 448 |
| 7 | Agricultural Chemistry | 305 | 8.1K | 33 | 71 |
| 8 | Pollution | 284 | 7.8K | 307 | 586 |
| 9 | Molecular Biology | 391 | 6.8K | 586 | 1004 |
| 10 | Physics | 347 | 5.9K | 886 | 1492 |
| 11 | environmental pollution | 191 | 5.8K | 285 | 431 |
| 12 | Nanotechnology | 214 | 5.6K | 491 | 712 |
| 13 | Biochemical Engineering | 176 | 5.4K | 216 | 467 |
| 14 | Ecology | 223 | 5.3K | 581 | 924 |
| 15 | Catalysis | 148 | 5.2K | 486 | 579 |
| 16 | Colloids | 222 | 5.1K | 280 | 468 |
| 17 | Materials Science | 184 | 4.9K | 448 | 615 |
| 18 | Microbiology | 166 | 4.9K | 740 | 928 |
| 19 | Environmental Management | 149 | 4.9K | 98 | 209 |
| 20 | Botany | 235 | 4.7K | 328 | 571 |
| 21 | Science | 236 | 4.7K | 908 | 1616 |
| 22 | China | 301 | 4.6K | 81 | 111 |
| 23 | Surface Chemistry | 209 | 4.6K | 299 | 464 |
| 24 | Biophysics | 207 | 4.5K | 629 | 803 |
| 25 | Environmental Health | 203 | 4.4K | 366 | 678 |
| 26 | Environment | 137 | 4.4K | 564 | 878 |
| 27 | Mathematics | 296 | 4.4K | 596 | 526 |
| 28 | Biology | 156 | 4.3K | 1069 | 1611 |
| 29 | Green Chemistry | 96 | 4.0K | 121 | 178 |
| 30 | Bioorganic chemistry | 118 | 3.7K | 242 | 292 |
| 31 | Artificial Intelligence | 124 | 3.4K | 321 | 455 |
| 32 | Biotechnology | 128 | 3.4K | 733 | 1029 |
| 33 | Organic Chemistry | 112 | 3.3K | 372 | 395 |
| 34 | Pharmaceutical Chemistry | 88 | 3.3K | 546 | 517 |
| 35 | Medicine | 201 | 3.2K | 1060 | 1563 |
| 36 | Research | 201 | 3.1K | 892 | 1301 |
| 37 | Composite Materials | 76 | 3.1K | 419 | 434 |
| 38 | Optical materials | 73 | 3.1K | 396 | 406 |
| 39 | Geology | 97 | 2.9K | 506 | 486 |
| 40 | Energy Policy | 110 | 2.9K | 181 | 388 |
| 41 | soil microbiology | 40 | 2.9K | 276 | 237 |
| 42 | environmental protection | 101 | 2.7K | 279 | 459 |
| 43 | Analytical Chemistry | 131 | 2.6K | 600 | 828 |
| 43 | Soil Science | 83 | 2.6K | 171 | 203 |
| 45 | Sustainable Engineering | 64 | 2.6K | 145 | 167 |
| 46 | Earth Sciences | 99 | 2.5K | 388 | 487 |
| 47 | Building Materials | 93 | 2.4K | 159 | 290 |
| 48 | Environmental Microbiology | 17 | 2.3K | 442 | 204 |
| 49 | Genomics | 117 | 2.3K | 276 | 470 |
| 50 | Engineering Geology | 90 | 2.3K | 99 | 158 |
| 51 | Toxicology | 87 | 2.3K | 711 | 843 |
| 52 | Environmental Toxicology | 95 | 2.3K | 134 | 321 |
| 53 | plant molecular biology | 111 | 2.3K | 110 | 368 |
| 54 | Nanostructured Materials | 87 | 2.3K | 504 | 646 |
| 55 | food technology | 110 | 2.3K | 212 | 347 |
| 56 | Environmental monitoring | 86 | 2.2K | 441 | 748 |
| 57 | Environmental pollutants | 68 | 2.1K | 194 | 250 |
| 58 | pollutants | 66 | 2.1K | 156 | 213 |
| 59 | Pesticides | 97 | 2.0K | 10 | 16 |
| 60 | Astronomy | 139 | 2.0K | 482 | 738 |
| 61 | Biomedical Engineering | 100 | 2.0K | 727 | 983 |
| 62 | Environmental Policy | 73 | 2.0K | 421 | 661 |
| 63 | environmental exposure | 64 | 2.0K | 142 | 172 |
| 64 | Rock Mechanics | 76 | 2.0K | 86 | 134 |
| 65 | Biocompatible Materials | 63 | 1.9K | 805 | 1017 |
| 66 | Plant physiology | 100 | 1.9K | 216 | 482 |
| 67 | Plants | 108 | 1.9K | 151 | 452 |
| 68 | actuators | 70 | 1.9K | 249 | 373 |
| 68 | transducers | 70 | 1.9K | 249 | 373 |
| 70 | Microorganisms | 7 | 1.9K | 587 | 186 |
| 71 | Food | 71 | 1.9K | 415 | 562 |
| 72 | coal | 49 | 1.9K | 225 | 252 |
| 73 | Medical Microbiology | 4 | 1.8K | 1522 | 482 |
| 74 | nanoscience | 49 | 1.8K | 627 | 729 |
| 75 | Environmental Geology | 87 | 1.8K | 56 | 153 |
| 76 | Bioengineering | 59 | 1.7K | 831 | 1059 |
| 77 | Polymers | 155 | 1.7K | 586 | 1006 |
| 78 | Entomology | 191 | 1.7K | 83 | 269 |
| 79 | Hydrology | 73 | 1.7K | 300 | 423 |
| 80 | Fracture mechanics | 71 | 1.7K | 152 | 179 |
| 80 | Plant diseases | 183 | 1.7K | 88 | 291 |
| 82 | Numerical Analysis | 79 | 1.6K | 238 | 250 |
| 83 | Biomass Energy | 42 | 1.6K | 471 | 592 |
| 84 | environmental indicators | 49 | 1.6K | 63 | 90 |
| 85 | Nuclear Physics | 103 | 1.6K | 948 | 1154 |
| 86 | mathematical analysis | 87 | 1.6K | 342 | 274 |
| 87 | Astrophysics | 149 | 1.6K | 513 | 979 |
| 88 | Metals | 47 | 1.5K | 406 | 433 |
| 89 | Chromosome mapping | 73 | 1.5K | 145 | 352 |
| 89 | gene mapping | 73 | 1.5K | 178 | 427 |
| 91 | Geochemistry | 102 | 1.4K | 284 | 545 |
| 92 | Plant Ecology | 41 | 1.4K | 377 | 458 |
| 93 | Clinical Chemistry | 33 | 1.4K | 691 | 625 |
| 94 | Geomorphology | 53 | 1.3K | 183 | 313 |
| 95 | Paleogeography | 39 | 1.3K | 162 | 192 |
| 96 | polymerization | 113 | 1.3K | 598 | 958 |
| 97 | Nonlinear functional analysis | 43 | 1.3K | 114 | 63 |
| 98 | Information Science | 82 | 1.3K | 210 | 524 |
| 99 | Paleoecology | 31 | 1.3K | 247 | 223 |
| 100 | Paleoclimatology | 30 | 1.2K | 279 | 262 |
| 101 | Geophysics | 60 | 1.2K | 753 | 927 |
| 102 | Agriculture | 54 | 1.2K | 298 | 395 |
| 103 | Systems Engineering | 64 | 1.2K | 221 | 377 |
| 104 | Electrochemistry | 64 | 1.2K | 958 | 1003 |
| 105 | Spectrum analysis | 97 | 1.2K | 744 | 1233 |
| 106 | Automation | 42 | 1.2K | 496 | 640 |
| 107 | Signal Processing | 66 | 1.2K | 452 | 675 |
| 108 | Neural circuitry | 45 | 1.1K | 279 | 445 |
| 109 | Cognitive Science | 15 | 1.1K | 578 | 379 |
| 110 | Renewable Energy Sources | 31 | 1.0K | 671 | 1120 |
| 111 | Internet of Things | 67 | 992 | 95 | 257 |
| 112 | internet | 66 | 985 | 116 | 335 |
| 113 | energy conservation | 36 | 978 | 408 | 680 |
| 114 | Insects | 104 | 966 | 56 | 256 |
| 115 | Metallurgy | 59 | 963 | 384 | 564 |
| 116 | Electrical Engineering | 54 | 935 | 692 | 568 |
| 117 | Water | 30 | 924 | 690 | 917 |
| 118 | Food additives | 27 | 906 | 195 | 283 |
| 119 | Industrial Engineering | 33 | 893 | 404 | 424 |
| 120 | Manufacturing Processes | 38 | 888 | 543 | 629 |
| 121 | computer networks | 55 | 885 | 381 | 649 |
| 122 | Solid State Chemistry | 51 | 871 | 529 | 635 |
| 123 | Radiation effects | 20 | 867 | 83 | 89 |
| 124 | Cell Biology | 46 | 860 | 915 | 1450 |
| 125 | Nanoparticles | 38 | 849 | 343 | 548 |
| 126 | Sustainable agriculture | 29 | 831 | 78 | 110 |
| 127 | hydrocolloids | 19 | 825 | 165 | 233 |
| 128 | health planning | 38 | 824 | 412 | 393 |
| 129 | Optics | 62 | 821 | 1006 | 1127 |
| 130 | soil management | 12 | 778 | 193 | 131 |
| 130 | tillage | 12 | 778 | 135 | 108 |
| 132 | Heat Exchangers | 26 | 769 | 282 | 377 |
| 133 | Plant Genetics | 26 | 758 | 130 | 274 |
| 134 | Soil Mechanics | 40 | 746 | 223 | 357 |
| 135 | Cytology | 44 | 743 | 1014 | 1517 |
| 136 | Microbial Ecology | 27 | 721 | 630 | 954 |
| 137 | soil conservation | 38 | 709 | 38 | 106 |
| 138 | Pharmacology | 53 | 698 | 1196 | 1714 |
| 139 | Functional Analysis | 36 | 690 | 271 | 291 |
| 140 | Plant Biotechnology | 25 | 684 | 129 | 181 |
| 141 | Physical organic chemistry | 37 | 681 | 227 | 346 |
| 142 | fuel cells | 15 | 669 | 497 | 532 |
| 143 | Plant genetic engineering | 14 | 660 | 324 | 302 |
| 144 | Environmental Engineering | 53 | 655 | 683 | 1344 |
| 145 | Mechanical Engineering | 33 | 652 | 666 | 564 |
| 146 | Energy Conversion | 11 | 645 | 591 | 641 |
| 147 | Organometallic chemistry | 53 | 643 | 254 | 468 |
| 148 | Horticulture | 33 | 634 | 95 | 103 |
| 149 | Water pollution | 33 | 633 | 744 | 1146 |
| 150 | Asia | 49 | 632 | 354 | 509 |
| 151 | Technology | 38 | 626 | 960 | 1180 |
| 152 | Ore deposits | 43 | 613 | 65 | 145 |
| 153 | Genetics | 47 | 612 | 762 | 1403 |
| 154 | Molecular Spectroscopy | 43 | 611 | 264 | 468 |
| 155 | Solitons | 38 | 592 | 114 | 238 |
| 155 | Entropy | 49 | 592 | 45 | 108 |
| 155 | Fractals | 38 | 592 | 114 | 239 |
| 155 | Chaos | 38 | 592 | 114 | 238 |
| 159 | mycoses | 16 | 581 | 215 | 364 |
| 160 | Engineering | 57 | 579 | 812 | 1281 |
| 161 | System analysis | 34 | 562 | 561 | 768 |
| 162 | Membranes | 11 | 561 | 889 | 803 |
| 163 | Industrial Microbiology | 25 | 557 | 485 | 806 |
| 163 | Land use | 29 | 557 | 162 | 341 |
| 163 | Carbon | 18 | 557 | 427 | 667 |
| 166 | Environmental Chemistry | 17 | 549 | 696 | 947 |
| 167 | Nanochemistry | 27 | 543 | 178 | 211 |
| 168 | Image Processing | 61 | 542 | 336 | 890 |
| 169 | Immunology | 12 | 534 | 1358 | 1263 |
| 170 | Virology | 31 | 531 | 741 | 1295 |
| 170 | Nervous system | 22 | 531 | 796 | 986 |
| 172 | land degradation | 28 | 527 | 22 | 74 |
| 172 | degradation | 28 | 527 | 22 | 74 |
| 174 | Paleontology | 35 | 522 | 310 | 397 |
| 175 | Heterocyclic compounds | 38 | 515 | 109 | 102 |
| 176 | Computer Science | 61 | 506 | 160 | 446 |
| 177 | Quantum Gravity | 22 | 497 | 955 | 980 |
| 178 | Magnetic Materials | 15 | 491 | 661 | 578 |
| 179 | Molecular structure | 40 | 489 | 487 | 830 |
| 180 | Control Theory | 40 | 475 | 391 | 611 |
| 181 | Chromatographic analysis | 33 | 468 | 391 | 542 |
| 182 | management | 22 | 467 | 1291 | 1615 |
| 183 | Mineralogy | 34 | 461 | 369 | 534 |
| 184 | Zeolites | 16 | 456 | 289 | 372 |
| 185 | Humanities | 23 | 448 | 362 | 257 |
| 186 | Social Sciences | 21 | 445 | 1194 | 1036 |
| 187 | natural gas | 14 | 438 | 100 | 101 |
| 188 | Detectors | 34 | 433 | 268 | 495 |
| 189 | Forest Ecology | 23 | 427 | 267 | 458 |
| 190 | Production Engineering | 31 | 423 | 479 | 642 |
| 191 | Nutrition | 21 | 422 | 1458 | 1809 |
| 191 | food handling | 14 | 422 | 252 | 341 |
| 193 | food contamination | 33 | 421 | 87 | 196 |
| 193 | Soil ecology | 20 | 421 | 174 | 339 |
| 195 | mass transfer | 23 | 415 | 592 | 807 |
| 196 | Measurement | 23 | 409 | 327 | 432 |
| 197 | Host-parasite interactions | 14 | 398 | 446 | 706 |
| 198 | Supramolecular chemistry | 33 | 391 | 5 | 11 |
| 199 | Data Mining | 21 | 389 | 375 | 657 |
| 200 | Genetic engineering | 32 | 383 | 468 | 962 |
| 200 | Computational Complexity | 30 | 383 | 108 | 170 |
| 202 | Information Theory | 25 | 378 | 396 | 574 |
| 202 | pigments | 17 | 378 | 240 | 294 |
| 204 | Solar Energy | 8 | 376 | 1055 | 914 |
| 205 | Transgenic plants | 9 | 373 | 148 | 154 |
| 206 | Tribology | 19 | 371 | 378 | 429 |
| 206 | Solid State Physics | 30 | 371 | 1399 | 1674 |
| 206 | Electrochemical Analysis | 16 | 371 | 641 | 677 |
| 206 | natural products | 22 | 371 | 531 | 643 |
| 206 | Tunneling | 13 | 371 | 120 | 182 |
| 206 | underground construction | 13 | 371 | 120 | 182 |
| 212 | Forest Management | 21 | 368 | 270 | 450 |
| 213 | Petroleum Engineering | 10 | 367 | 318 | 249 |
| 213 | lasers | 25 | 367 | 673 | 786 |
| 215 | Photonics | 25 | 361 | 637 | 996 |
| 216 | Wireless Communication Systems | 28 | 359 | 741 | 1023 |
| 216 | Cancer | 16 | 359 | 1146 | 1433 |
| 218 | data collection | 17 | 357 | 267 | 465 |
| 218 | Recombinant DNA | 29 | 357 | 310 | 630 |
| 220 | Structural Engineering | 31 | 356 | 440 | 730 |
| 221 | Economics | 27 | 353 | 1473 | 1655 |
| 222 | concrete | 12 | 350 | 406 | 601 |
| 223 | Pharmaceutical Technology | 10 | 346 | 808 | 732 |
| 223 | sanitation | 18 | 346 | 520 | 1034 |
| 223 | catalytic activity | 10 | 346 | 302 | 322 |
| 226 | Biosensors | 10 | 342 | 658 | 886 |
| 227 | Environmental Geochemistry | 18 | 338 | 49 | 102 |
| 228 | Minerals | 17 | 333 | 153 | 230 |
| 229 | Quality Control | 13 | 332 | 634 | 732 |
| 230 | vibration | 21 | 331 | 336 | 535 |
| 231 | Statistical physics | 42 | 329 | 1028 | 1588 |
| 232 | Energy Storage | 16 | 324 | 431 | 627 |
| 233 | Multimedia Systems | 32 | 320 | 360 | 672 |
| 234 | Nanobiotechnology | 9 | 316 | 134 | 251 |
| 234 | food industry | 44 | 316 | 31 | 154 |
| 236 | Immunity | 2 | 313 | 1569 | 1096 |
| 237 | Biodiversity | 46 | 310 | 374 | 1069 |
| 238 | Pharmacognosy | 16 | 306 | 710 | 1077 |
| 238 | Marine Geology | 7 | 306 | 347 | 246 |
| 238 | Petroleum Geology | 7 | 306 | 311 | 237 |
| 241 | Food Preservation | 25 | 305 | 106 | 181 |
| 242 | biological factors | 15 | 303 | 766 | 899 |
| 243 | Biodiversity conservation | 7 | 301 | 956 | 1118 |
| 244 | Metallic Glasses | 10 | 300 | 185 | 191 |
| 245 | Molecular cloning | 27 | 299 | 303 | 664 |
| 246 | Aquaculture | 22 | 297 | 432 | 671 |
| 247 | Zoology | 28 | 294 | 781 | 1022 |
| 248 | Signal Transduction | 20 | 293 | 450 | 871 |
| 249 | transgenic organisms | 4 | 290 | 169 | 83 |
| 249 | transgenic animals | 4 | 290 | 157 | 80 |
| 251 | Metallography | 14 | 288 | 281 | 360 |
| 252 | Climate change | 5 | 285 | 699 | 935 |
| 252 | Eutrophication | 5 | 285 | 668 | 923 |
| 254 | Fractional Calculus | 5 | 282 | 65 | 30 |
| 255 | Semiconductors | 25 | 277 | 622 | 889 |
| 256 | Genetic recombination | 25 | 274 | 315 | 698 |
| 257 | clay | 8 | 271 | 428 | 490 |
| 258 | miniaturization | 20 | 269 | 618 | 1128 |
| 259 | Evolution | 17 | 268 | 698 | 1042 |
| 260 | Iron | 17 | 265 | 80 | 104 |
| 261 | Bacterial infections | 1 | 264 | 1137 | 541 |
| 262 | Mathematical Physics | 31 | 259 | 963 | 1313 |
| 263 | Luminescence | 18 | 258 | 417 | 545 |
| 264 | Microelectronics | 13 | 257 | 815 | 1033 |
| 264 | Mineral resources | 8 | 257 | 255 | 344 |
| 266 | Animal genetics | 4 | 254 | 449 | 290 |
| 266 | software | 5 | 254 | 778 | 643 |
| 268 | Molecular evolution | 24 | 253 | 398 | 918 |
| 268 | plant viruses | 21 | 253 | 34 | 90 |
| 270 | energy resources | 7 | 252 | 825 | 1137 |
| 271 | Enzyme inhibitors | 12 | 250 | 92 | 156 |
| 272 | Ceramics | 17 | 248 | 504 | 655 |
| 272 | Medicinal plants | 13 | 248 | 543 | 923 |
| 274 | Fuzzy systems | 29 | 247 | 272 | 580 |
| 274 | Plant cells | 14 | 247 | 484 | 961 |
| 276 | Immunotherapy | 14 | 245 | 685 | 1048 |
| 277 | Computational Biology | 14 | 244 | 1021 | 1327 |
| 278 | Recycling | 3 | 241 | 598 | 593 |
| 278 | Breeding | 14 | 241 | 470 | 645 |
| 278 | Genes | 12 | 241 | 447 | 539 |
| 281 | Lightweight concrete | 7 | 240 | 235 | 415 |
| 282 | Crystal growth | 16 | 238 | 347 | 554 |
| 283 | Operations Research | 22 | 235 | 808 | 1268 |
| 283 | Bioinformatics | 15 | 235 | 823 | 1119 |
| 285 | Meteorology | 12 | 233 | 1006 | 1356 |
| 286 | carbon monoxide | 8 | 231 | 119 | 214 |
| 287 | Marine Biology | 9 | 230 | 1411 | 1470 |
| 288 | Arthropods | 21 | 229 | 19 | 40 |
| 288 | Glass | 14 | 229 | 409 | 582 |
| 288 | pottery | 14 | 229 | 390 | 575 |
| 291 | Analytical Biochemistry | 13 | 228 | 734 | 929 |
| 292 | Electronics | 35 | 227 | 968 | 1677 |
| 292 | Japan | 16 | 227 | 587 | 714 |
| 292 | finance | 16 | 227 | 1011 | 1225 |
| 292 | Insect biochemistry | 10 | 227 | 183 | 285 |
| 296 | Bioelectronics | 4 | 226 | 941 | 1001 |
| 297 | Endocrinology | 6 | 225 | 1637 | 1609 |
| 298 | Mining Engineering | 8 | 224 | 261 | 285 |
| 299 | Soil biology | 8 | 221 | 541 | 738 |
| 300 | Boundary Value Problems | 14 | 214 | 259 | 352 |
| 301 | Proteomics | 15 | 210 | 366 | 699 |
| 301 | free radicals | 4 | 210 | 1041 | 1049 |
| 303 | Developmental Biology | 7 | 209 | 1125 | 1286 |
| 303 | environmental remediation | 8 | 209 | 89 | 126 |
| 305 | Immunopharmacology | 14 | 208 | 345 | 609 |
| 305 | Virulence | 9 | 208 | 535 | 857 |
| 307 | cytokines | 13 | 203 | 437 | 800 |
| 308 | Cosmochemistry | 11 | 202 | 407 | 590 |
| 309 | Plant hormones | 11 | 200 | 83 | 190 |
| 310 | soil pollution | 14 | 199 | 87 | 242 |
| 311 | Systems Analysis | 6 | 197 | 784 | 580 |
| 311 | DNS | 6 | 197 | 270 | 260 |
| 313 | Australia | 11 | 196 | 796 | 848 |
| 314 | Food Microbiology | 12 | 194 | 492 | 965 |
| 314 | Landslides | 9 | 194 | 76 | 203 |
| 316 | Telecommunication Systems | 12 | 191 | 742 | 819 |
| 317 | freshwater biology | 5 | 190 | 652 | 530 |
| 318 | Oxidative stress | 4 | 187 | 685 | 844 |
| 318 | Bacteriology | 14 | 187 | 749 | 1295 |
| 318 | Friction | 5 | 187 | 55 | 74 |
| 321 | Bioinorganic chemistry | 12 | 185 | 716 | 915 |
| 322 | Cybernetics | 15 | 184 | 630 | 1067 |
| 322 | biological evolution | 7 | 184 | 1222 | 1504 |
| 324 | Information Technology | 21 | 183 | 741 | 1495 |
| 325 | Civil Engineering | 25 | 182 | 393 | 538 |
| 325 | Economic History | 13 | 182 | 1566 | 1649 |
| 327 | Photochemistry | 8 | 181 | 1018 | 1099 |
| 327 | Photobiology | 8 | 181 | 777 | 879 |
| 327 | nucleic acids | 9 | 181 | 859 | 1181 |
| 330 | Telecommunication | 14 | 180 | 1221 | 1559 |
| 330 | phenomics | 9 | 180 | 7 | 13 |
| 330 | natural disasters | 8 | 180 | 690 | 860 |
| 333 | cell interaction | 7 | 179 | 592 | 786 |
| 334 | Condensed Matter | 18 | 178 | 1393 | 1803 |
| 335 | Geodynamics | 2 | 177 | 912 | 640 |
| 336 | Medical Laboratory Science | 9 | 174 | 1057 | 1477 |
| 336 | particles | 16 | 174 | 259 | 568 |
| 336 | Chemical industry | 15 | 174 | 473 | 648 |
| 339 | Mountains | 17 | 171 | 49 | 102 |
| 340 | Chromatography | 14 | 170 | 660 | 926 |
| 341 | Phytochemistry | 7 | 169 | 87 | 142 |
| 341 | Paleobiology | 17 | 169 | 64 | 104 |
| 341 | Phytoremediation | 7 | 169 | 87 | 142 |
| 341 | Bioreactors | 7 | 169 | 87 | 142 |
| 345 | Investment analysis | 14 | 168 | 235 | 546 |
| 346 | Oceanography | 2 | 167 | 1670 | 1111 |
| 346 | Electromagnetism | 8 | 167 | 595 | 569 |
| 346 | Antenna Arrays | 8 | 167 | 293 | 377 |
| 349 | Microbial Biotechnology | 8 | 164 | 454 | 657 |
| 350 | energy development | 6 | 163 | 495 | 659 |
| 351 | Climatology | 8 | 160 | 994 | 1239 |
| 352 | Sociology | 8 | 157 | 1796 | 1803 |
| 353 | Microprocessors | 6 | 156 | 380 | 267 |
| 354 | Public Policy | 1 | 154 | 2447 | 1193 |
| 354 | Industrial Safety | 8 | 154 | 630 | 748 |
| 356 | Quantum electronics | 9 | 152 | 904 | 942 |
| 357 | animals | 27 | 148 | 253 | 653 |
| 358 | brewing | 4 | 147 | 148 | 78 |
| 359 | Plant breeding | 10 | 146 | 316 | 503 |
| 360 | Plastics | 16 | 145 | 645 | 1063 |
| 360 | plant communities | 10 | 145 | 554 | 950 |
| 362 | Water quality management | 9 | 143 | 971 | 1153 |
| 363 | Radiography | 2 | 139 | 782 | 712 |
| 364 | Electrophoresis | 9 | 137 | 884 | 1147 |
| 365 | Plant tissue culture | 14 | 136 | 202 | 537 |
| 365 | Plant cell culture | 14 | 136 | 167 | 530 |
| 367 | Decision making | 10 | 135 | 699 | 1021 |
| 368 | Industrial Design | 6 | 134 | 120 | 180 |
| 368 | Petrology | 7 | 134 | 609 | 734 |
| 370 | Energy Harvesting | 3 | 133 | 430 | 557 |
| 371 | Computer Graphics | 19 | 132 | 619 | 1190 |
| 372 | Calorimetry | 10 | 130 | 561 | 763 |
| 372 | Thermal analysis | 10 | 130 | 561 | 763 |
| 374 | Physiology | 8 | 128 | 2274 | 2759 |
| 374 | Combustion | 8 | 128 | 740 | 937 |
| 376 | Korea | 11 | 127 | 97 | 120 |
| 377 | Natural history | 14 | 126 | 1371 | 3047 |
| 377 | genome | 6 | 126 | 878 | 1287 |
| 379 | Nonlinear systems | 15 | 124 | 180 | 406 |
| 380 | Computer Vision | 11 | 123 | 533 | 997 |
| 380 | atmosphere | 6 | 123 | 470 | 647 |
| 380 | Phytotherapy | 7 | 123 | 282 | 537 |
| 383 | Fermentation | 3 | 122 | 222 | 139 |
| 383 | economic policy | 7 | 122 | 1529 | 1336 |
| 383 | Kidney diseases | 3 | 122 | 779 | 640 |
| 386 | Agricultural Biotechnology | 9 | 121 | 107 | 72 |
| 386 | synthesis | 16 | 121 | 301 | 585 |
| 388 | Sustainable Development | 11 | 120 | 927 | 1782 |
| 389 | Simulation Methods | 3 | 118 | 1023 | 693 |
| 390 | Ceramic materials | 15 | 116 | 518 | 1024 |
| 390 | Nanostructures | 15 | 116 | 779 | 1666 |
| 390 | Social Change | 4 | 116 | 886 | 1193 |
| 393 | Evolutionary Computation | 6 | 115 | 250 | 556 |
| 393 | Swarm Intelligence | 6 | 115 | 129 | 274 |
| 395 | Robotics | 14 | 114 | 754 | 1272 |
| 395 | Mites | 34 | 114 | 31 | 219 |
| 397 | Anthropology | 5 | 113 | 1139 | 991 |
| 397 | Chemical analysis | 4 | 113 | 942 | 944 |
| 399 | Earthquake Engineering | 11 | 112 | 710 | 1115 |
| 399 | Oxidation-reduction | 1 | 112 | 1065 | 921 |
| 401 | Ethnobotany | 4 | 111 | 114 | 214 |
| 401 | Medical Anthropology | 4 | 111 | 981 | 1175 |
| 401 | Traditional medicine | 4 | 111 | 127 | 217 |
| 401 | ethnobiology | 4 | 111 | 153 | 246 |
| 401 | Ethnomedicine | 4 | 111 | 114 | 214 |
| 406 | Organometallic compounds | 6 | 110 | 947 | 1027 |
| 406 | Diet | 3 | 110 | 1619 | 1798 |
| 408 | Power Electronics | 18 | 108 | 397 | 944 |
| 408 | Stochastic Processes | 4 | 108 | 795 | 595 |
| 408 | economic analysis | 5 | 108 | 139 | 195 |
| 411 | Structural dynamics | 7 | 107 | 631 | 969 |
| 412 | Histology | 6 | 106 | 1177 | 1466 |
| 412 | Molecular Microbiology | 7 | 106 | 508 | 897 |
| 412 | Diagnostic Imaging | 25 | 106 | 505 | 1252 |
| 412 | Hazardous waste | 7 | 106 | 555 | 1201 |
| 412 | wood | 6 | 106 | 300 | 315 |
| 412 | Bacterial diseases | 7 | 106 | 84 | 262 |
| 418 | Nephrology | 2 | 104 | 512 | 532 |
| 418 | Geographic information systems | 12 | 104 | 416 | 760 |
| 420 | Systems Biology | 8 | 103 | 801 | 1179 |
| 420 | Computer-Aided Design | 4 | 103 | 1037 | 932 |
| 420 | Cerebral cortex | 5 | 103 | 630 | 829 |
| 423 | Molecular Pharmacology | 8 | 102 | 425 | 828 |
| 423 | Food Safety | 5 | 102 | 132 | 164 |
| 423 | Remote Sensing | 16 | 102 | 526 | 931 |
| 423 | Bioremediation | 5 | 102 | 584 | 865 |
| 427 | Drug design | 11 | 101 | 686 | 1310 |
| 428 | Biomass | 6 | 100 | 397 | 791 |
| 428 | Cellulose | 5 | 100 | 415 | 622 |
| 430 | Liver diseases | 2 | 99 | 1147 | 1134 |
| 431 | Metabolism | 5 | 98 | 1502 | 1926 |
| 432 | Environmental Law | 4 | 97 | 867 | 1290 |
| 432 | solar power | 3 | 97 | 820 | 960 |
| 432 | radioactive waste | 4 | 97 | 676 | 1182 |
| 432 | industrial waste | 4 | 97 | 704 | 1182 |
| 432 | solar cells | 3 | 97 | 877 | 1009 |
| 432 | World Wide Web | 5 | 97 | 239 | 220 |
| 438 | heredity | 5 | 96 | 459 | 490 |
| 438 | Cement | 3 | 96 | 559 | 748 |
| 438 | amino acids | 1 | 96 | 965 | 569 |
| 438 | India | 7 | 96 | 803 | 612 |
| 442 | Ocean Engineering | 7 | 94 | 1080 | 1457 |
| 443 | Optical Communications | 9 | 93 | 379 | 547 |
| 444 | Transportation | 12 | 91 | 750 | 1385 |
| 444 | dietary supplements | 10 | 91 | 334 | 880 |
| 444 | United States | 11 | 91 | 2388 | 3350 |
| 447 | International Finance | 7 | 90 | 1135 | 1480 |
| 447 | cell physiology | 3 | 90 | 1220 | 1401 |
| 449 | Phylogeny | 6 | 89 | 572 | 990 |
| 450 | Animal Behavior | 4 | 88 | 1465 | 1715 |
| 450 | Physical Chemistry | 10 | 88 | 1205 | 1772 |
| 450 | Ultrasonics | 6 | 88 | 820 | 1353 |
| 450 | Sonochemistry | 6 | 88 | 384 | 948 |
| 450 | Lipids | 3 | 88 | 1153 | 1248 |
| 450 | water reuse | 5 | 88 | 179 | 340 |
| 456 | Physical Geography | 3 | 87 | 490 | 454 |
| 456 | Egypt | 6 | 87 | 271 | 552 |
| 458 | Cell death | 5 | 86 | 772 | 1182 |
| 458 | textile fibers | 11 | 86 | 139 | 272 |
| 460 | Intelligent Transportation Systems | 8 | 85 | 629 | 1142 |
| 460 | Biomechanics | 5 | 85 | 963 | 1167 |
| 462 | Technology Assessment | 1 | 84 | 846 | 583 |
| 462 | Erosion | 1 | 84 | 241 | 98 |
| 464 | Computational Intelligence | 11 | 83 | 213 | 546 |
| 464 | hazard mitigation | 6 | 83 | 562 | 951 |
| 464 | bioluminescence | 6 | 83 | 169 | 192 |
| 464 | multimedia | 4 | 83 | 408 | 575 |
| 464 | Interactive multimedia | 4 | 83 | 473 | 615 |
| 464 | DNA | 4 | 83 | 479 | 515 |
| 470 | Human-Computer Interaction | 7 | 82 | 959 | 1432 |
| 471 | Sedimentology | 7 | 81 | 336 | 619 |
| 471 | Methodology | 2 | 81 | 688 | 365 |
| 471 | Methods | 1 | 81 | 243 | 62 |
| 474 | Cloud Computing | 12 | 80 | 73 | 385 |
| 474 | Heterocyclic chemistry | 8 | 80 | 209 | 265 |
| 474 | Wildlife conservation | 1 | 80 | 1461 | 1176 |
| 477 | Health Education | 1 | 79 | 2451 | 1441 |
| 477 | Patient education | 1 | 79 | 857 | 634 |
| 477 | Cell division | 2 | 79 | 440 | 454 |
| 477 | counseling | 1 | 79 | 1855 | 1081 |
| 477 | Microwaves | 8 | 79 | 798 | 966 |
| 482 | Algorithms | 8 | 78 | 387 | 568 |
| 482 | Interfaces | 4 | 78 | 239 | 270 |
| 482 | Radio waves | 1 | 78 | 1156 | 829 |
| 482 | Radio | 1 | 78 | 1825 | 1271 |
| 486 | brain mapping | 3 | 77 | 544 | 695 |
| 487 | Plate Tectonics | 7 | 76 | 126 | 254 |
| 487 | Food service management | 2 | 76 | 545 | 674 |
| 489 | Psychiatry | 4 | 75 | 2816 | 3039 |
| 489 | Immunochemistry | 3 | 75 | 898 | 870 |
| 489 | microwave communication systems | 1 | 75 | 605 | 374 |
| 489 | Cell survival | 3 | 75 | 187 | 282 |
| 489 | Microwave devices | 1 | 75 | 702 | 428 |
| 489 | molecular chaperones | 3 | 75 | 229 | 283 |
| 495 | Groundwater | 5 | 73 | 373 | 552 |
| 496 | Hydrogeology | 4 | 72 | 528 | 668 |
| 496 | Oral Medicine | 8 | 72 | 415 | 572 |
| 498 | Geography | 5 | 71 | 1505 | 1805 |
| 499 | Computational Linguistics | 3 | 70 | 565 | 342 |
| 500 | Birds | 5 | 69 | 828 | 844 |
| 501 | Public Health | 5 | 68 | 3319 | 3861 |
| 502 | Intelligent Control Systems | 15 | 67 | 334 | 801 |
| 503 | Psychology | 11 | 66 | 2466 | 3663 |
| 504 | Computer Engineering | 7 | 65 | 527 | 968 |
| 504 | Herbal medicine | 6 | 65 | 433 | 1069 |
| 504 | Production Management | 5 | 65 | 882 | 1490 |
| 504 | water supply | 7 | 65 | 503 | 986 |
| 504 | Forest genetics | 3 | 65 | 262 | 246 |
| 509 | Soil fertility | 2 | 64 | 393 | 500 |
| 509 | viruses | 3 | 64 | 1090 | 1392 |
| 509 | Acarology | 7 | 64 | 132 | 285 |
| 509 | Ticks | 7 | 64 | 127 | 284 |
| 509 | Acari | 7 | 64 | 127 | 284 |
| 514 | Evidence-Based Medicine | 3 | 63 | 665 | 801 |
| 514 | Ornithology | 3 | 63 | 893 | 770 |
| 516 | marketing | 2 | 62 | 2154 | 2007 |
| 517 | Microbial Genetics | 6 | 61 | 192 | 436 |
| 517 | air quality management | 4 | 61 | 395 | 648 |
| 517 | phytopathogenic bacteria | 6 | 61 | 141 | 376 |
| 517 | Safety management | 8 | 61 | 220 | 487 |
| 521 | Cosmology | 2 | 60 | 730 | 625 |
| 521 | Clinical Pharmacology | 3 | 60 | 1092 | 1184 |
| 521 | Tourism | 2 | 60 | 1942 | 2001 |
| 521 | nuclear astrophysics | 2 | 60 | 579 | 532 |
| 521 | isomerism | 3 | 60 | 312 | 326 |
| 521 | Sedimentary rocks | 6 | 60 | 402 | 712 |
| 521 | Imaging systems | 23 | 60 | 99 | 609 |
| 521 | Refractory materials | 10 | 60 | 39 | 52 |
| 521 | Chirality | 3 | 60 | 312 | 326 |
| 530 | Polymer Engineering | 5 | 59 | 46 | 81 |
| 531 | Biogeochemistry | 3 | 58 | 982 | 1299 |
| 531 | ecosystem | 6 | 58 | 868 | 1561 |
| 533 | Epidemiology | 3 | 57 | 2760 | 2919 |
| 533 | Visual Communication | 6 | 57 | 228 | 445 |
| 533 | Dynamics | 11 | 57 | 816 | 1405 |
| 533 | Hemostasis | 2 | 57 | 742 | 699 |
| 533 | Thrombosis | 2 | 57 | 954 | 959 |
| 533 | Image enhancement | 6 | 57 | 167 | 403 |
| 533 | Communication | 6 | 57 | 1423 | 2006 |
| 540 | carbonate rocks | 4 | 56 | 91 | 84 |
| 541 | Animal breeding | 6 | 55 | 508 | 803 |
| 541 | Technological Innovations | 2 | 55 | 1314 | 1290 |
| 541 | Reproduction | 6 | 55 | 1413 | 1915 |
| 544 | Neurology | 3 | 53 | 3315 | 3726 |
| 544 | Telecommunications | 2 | 53 | 1019 | 797 |
| 544 | Infections | 1 | 53 | 1345 | 1226 |
| 544 | Bioavailability | 2 | 53 | 106 | 104 |
| 544 | infection | 1 | 53 | 1832 | 1544 |
| 549 | gene therapy | 3 | 52 | 815 | 1079 |
| 549 | Microstructure | 7 | 52 | 516 | 852 |
| 549 | proteins | 4 | 52 | 1525 | 1906 |
| 552 | Emergency Medicine | 4 | 51 | 964 | 1089 |
| 553 | Computational Chemistry | 2 | 50 | 813 | 833 |
| 553 | Mobile Computing | 7 | 50 | 698 | 1157 |
| 553 | indoor air pollution | 3 | 50 | 354 | 516 |
| 553 | Granular materials | 9 | 50 | 236 | 892 |
| 553 | Ventilation | 3 | 50 | 517 | 614 |
| 553 | Sick building syndrome | 3 | 50 | 354 | 516 |
| 559 | Urban Policy | 4 | 49 | 718 | 1123 |
| 559 | sedimentary basins | 1 | 49 | 323 | 296 |
| 559 | Ferroelectricity | 11 | 49 | 504 | 834 |
| 559 | Porous materials | 6 | 49 | 490 | 814 |
| 559 | urban forestry | 4 | 49 | 174 | 368 |
| 564 | Atmospheric Physics | 5 | 48 | 1065 | 1599 |
| 565 | drug resistance | 3 | 47 | 659 | 946 |
| 565 | Fixed Point Theory | 4 | 47 | 205 | 168 |
| 565 | Eastern Europe | 3 | 47 | 918 | 704 |
| 565 | commerce | 3 | 47 | 1577 | 1768 |
| 569 | Ecohydrology | 6 | 46 | 188 | 442 |
| 569 | Wireless Communication | 3 | 46 | 449 | 453 |
| 569 | Parasitology | 2 | 46 | 2288 | 2188 |
| 572 | Structural design | 6 | 45 | 556 | 978 |
| 572 | Process Control | 2 | 45 | 1147 | 1506 |
| 572 | Emerging infectious diseases | 1 | 45 | 532 | 491 |
| 572 | Metabolic diseases | 3 | 45 | 1599 | 2082 |
| 576 | Asymmetric synthesis | 4 | 44 | 62 | 104 |
| 576 | toxicity testing | 1 | 44 | 1012 | 891 |
| 578 | Waste management | 9 | 43 | 741 | 1598 |
| 578 | Taste | 3 | 43 | 287 | 425 |
| 578 | flavor | 3 | 43 | 171 | 323 |
| 578 | smell | 3 | 43 | 287 | 425 |
| 582 | Biogeography | 3 | 42 | 916 | 1343 |
| 583 | Ergonomics | 3 | 41 | 853 | 1036 |
| 583 | Mechatronics | 7 | 41 | 538 | 1156 |
| 583 | Enteral nutrition | 2 | 41 | 837 | 1073 |
| 583 | Parenteral nutrition | 2 | 41 | 956 | 1170 |
| 583 | Mechanics | 4 | 41 | 1160 | 1347 |
| 583 | Developing countries | 7 | 41 | 1456 | 2520 |
| 589 | Risk assessment | 5 | 40 | 407 | 821 |
| 589 | ecological risk assessment | 5 | 40 | 101 | 406 |
| 589 | Health Risk Assessment | 5 | 40 | 263 | 636 |
| 589 | data protection | 5 | 40 | 381 | 701 |
| 593 | Bryology | 2 | 39 | 249 | 199 |
| 593 | bryophytes | 2 | 39 | 135 | 109 |
| 593 | Microscopy | 4 | 39 | 1189 | 1470 |
| 596 | Software Engineering | 1 | 38 | 1465 | 1156 |
| 596 | Invertebrates | 2 | 38 | 719 | 799 |
| 598 | Smart Materials | 5 | 37 | 700 | 1180 |
| 598 | DNA repair | 1 | 37 | 460 | 451 |
| 598 | Behavior | 3 | 37 | 2627 | 3602 |
| 601 | Materials Engineering | 3 | 36 | 758 | 901 |
| 601 | Applied Mathematics | 1 | 36 | 594 | 86 |
| 601 | Biopharmaceutics | 1 | 36 | 1460 | 1452 |
| 601 | Differential Equations | 8 | 36 | 648 | 1076 |
| 601 | feeding behavior | 1 | 36 | 1090 | 1096 |
| 601 | Appetite | 1 | 36 | 978 | 1000 |
| 607 | Pathology | 2 | 35 | 1727 | 2061 |
| 607 | Neuropsychology | 3 | 35 | 1945 | 2472 |
| 607 | Water Purification | 5 | 35 | 864 | 1443 |
| 607 | machinery | 5 | 35 | 602 | 1031 |
| 607 | Brain | 3 | 35 | 2105 | 2701 |
| 607 | Intellectual disability | 1 | 35 | 1154 | 941 |
| 613 | Neurochemistry | 2 | 34 | 2133 | 2454 |
| 613 | Production Planning | 2 | 34 | 357 | 594 |
| 613 | Contraception | 1 | 34 | 875 | 795 |
| 613 | Liquid Crystals | 15 | 34 | 345 | 797 |
| 613 | Production Control | 2 | 34 | 344 | 591 |
| 613 | preimplantation genetic diagnosis | 1 | 34 | 656 | 619 |
| 613 | embryo transfer | 1 | 34 | 670 | 632 |
| 613 | Stem cells | 3 | 34 | 1108 | 1562 |
| 621 | Restoration Ecology | 2 | 33 | 504 | 644 |
| 621 | Thin Films | 4 | 33 | 430 | 648 |
| 621 | human behavior | 2 | 33 | 2584 | 3306 |
| 621 | Roads | 7 | 33 | 415 | 696 |
| 625 | Statistics | 10 | 32 | 1435 | 2238 |
| 625 | Hematology | 3 | 32 | 1437 | 1854 |
| 625 | Logistics | 2 | 32 | 727 | 1018 |
| 625 | Drying | 2 | 32 | 479 | 596 |
| 625 | big data | 4 | 32 | 481 | 937 |
| 630 | Education | 4 | 31 | 3006 | 3490 |
| 630 | Tissue Engineering | 2 | 31 | 440 | 565 |
| 630 | Regenerative Medicine | 2 | 31 | 176 | 239 |
| 630 | Fishery management | 2 | 31 | 921 | 1035 |
| 630 | Adaptive control systems | 8 | 31 | 289 | 770 |
| 635 | Urology | 4 | 30 | 1022 | 1434 |
| 635 | Bioenergetics | 1 | 30 | 1216 | 1291 |
| 635 | Soil dynamics | 3 | 30 | 519 | 793 |
| 635 | Quantum Optics | 3 | 30 | 888 | 1057 |
| 635 | Calculus of Variations | 3 | 30 | 554 | 612 |
| 635 | Cell differentiation | 3 | 30 | 1174 | 1827 |
| 635 | Molecules | 4 | 30 | 1316 | 1576 |
| 635 | aromatic plants | 2 | 30 | 314 | 284 |
| 635 | Atomic spectroscopy | 3 | 30 | 1083 | 1351 |
| 635 | Laser Spectroscopy | 3 | 30 | 841 | 1018 |
| 645 | Nondestructive testing | 2 | 29 | 822 | 922 |
| 645 | emergency management | 1 | 29 | 1139 | 1076 |
| 645 | Emulsions | 3 | 29 | 361 | 509 |
| 645 | drug toxicity | 2 | 29 | 628 | 962 |
| 649 | Oncology | 3 | 28 | 1669 | 2600 |
| 649 | Serology | 5 | 28 | 312 | 831 |
| 649 | Cryptography | 2 | 28 | 851 | 695 |
| 649 | Alternative Medicine | 1 | 28 | 2273 | 2286 |
| 649 | Animal ecology | 2 | 28 | 1223 | 1422 |
| 649 | complementary therapies | 1 | 28 | 2547 | 2430 |
| 649 | Database Security | 1 | 28 | 192 | 143 |
| 649 | motivation | 1 | 28 | 657 | 644 |
| 649 | Learning | 1 | 28 | 1723 | 1660 |
| 649 | Europe | 3 | 28 | 2611 | 3013 |
| 659 | Pharmacy | 2 | 27 | 2053 | 2465 |
| 659 | Agricultural Ecology | 5 | 27 | 721 | 1651 |
| 659 | Animal Nutrition | 2 | 27 | 662 | 811 |
| 659 | Cognitive Radio Networks | 4 | 27 | 162 | 368 |
| 659 | Access to Information | 3 | 27 | 156 | 479 |
| 659 | Reading | 1 | 27 | 920 | 836 |
| 659 | Parasites | 1 | 27 | 2071 | 1939 |
| 659 | Papermaking | 1 | 27 | 152 | 87 |
| 659 | Population | 1 | 27 | 1379 | 1327 |
| 659 | Mental illness | 3 | 27 | 1480 | 2190 |
| 659 | Information dissemination | 3 | 27 | 156 | 479 |
| 659 | wildlife diseases | 1 | 27 | 329 | 231 |
| 671 | Nuclear Medicine | 2 | 26 | 905 | 996 |
| 671 | Molecular Imaging | 2 | 26 | 569 | 795 |
| 671 | Marine Pollution | 2 | 26 | 1360 | 1909 |
| 671 | Fiber Optics | 3 | 26 | 882 | 1181 |
| 671 | Physical fitness | 1 | 26 | 1493 | 1453 |
| 671 | Aquatic ecology | 4 | 26 | 770 | 1243 |
| 677 | Geriatrics | 3 | 25 | 2297 | 2857 |
| 677 | Artificial Organs | 1 | 25 | 833 | 743 |
| 677 | Cognitive neuroscience | 1 | 25 | 1334 | 1384 |
| 677 | Ethology | 2 | 25 | 1484 | 2058 |
| 677 | Neuroplasticity | 1 | 25 | 504 | 574 |
| 677 | Proteome | 1 | 25 | 1372 | 1545 |
| 677 | Fossil fuels | 3 | 25 | 75 | 56 |
| 677 | human development | 1 | 25 | 1228 | 1278 |
| 677 | livestock | 5 | 25 | 371 | 693 |
| 677 | cloning | 2 | 25 | 624 | 957 |
| 677 | Plasma devices | 2 | 25 | 350 | 471 |
| 688 | Nanoelectronics | 1 | 24 | 1177 | 979 |
| 688 | Urban Transportation | 2 | 24 | 166 | 236 |
| 688 | Biodegradation | 3 | 24 | 736 | 1437 |
| 688 | Autoantibodies | 2 | 24 | 589 | 873 |
| 688 | Autoimmunity | 2 | 24 | 715 | 1073 |
| 688 | Biofilms | 1 | 24 | 335 | 453 |
| 688 | forestry | 2 | 24 | 269 | 406 |
| 688 | animal diseases | 3 | 24 | 462 | 802 |
| 688 | Autoimmune diseases | 2 | 24 | 635 | 961 |
| 697 | Engineering Mathematics | 20 | 23 | 602 | 2181 |
| 697 | Landscape Ecology | 1 | 23 | 702 | 869 |
| 697 | Molecular Genetics | 4 | 23 | 1337 | 2423 |
| 697 | Cell communication | 3 | 23 | 537 | 1089 |
| 697 | Meteorites | 2 | 23 | 863 | 1262 |
| 702 | Combinatorial chemistry | 1 | 22 | 1055 | 1305 |
| 702 | Radiation | 3 | 22 | 1988 | 2509 |
| 702 | Developmental Immunology | 3 | 22 | 564 | 1047 |
| 702 | biological monitoring | 1 | 22 | 863 | 1008 |
| 706 | Game Theory | 1 | 21 | 898 | 793 |
| 706 | Econometrics | 4 | 21 | 1182 | 1624 |
| 706 | Genetic databases | 3 | 21 | 19 | 61 |
| 706 | Computational Fluid Dynamics | 1 | 21 | 1009 | 1044 |
| 706 | Adhesion | 2 | 21 | 897 | 1141 |
| 706 | Inflammation | 2 | 21 | 1171 | 1720 |
| 706 | adhesives | 2 | 21 | 952 | 1164 |
| 706 | drugs | 3 | 21 | 1716 | 2542 |
| 706 | Autism | 2 | 21 | 736 | 1127 |
| 706 | Nitric oxide | 1 | 21 | 514 | 667 |
| 716 | Anatomy | 1 | 20 | 2396 | 2308 |
| 716 | Embryology | 1 | 20 | 1649 | 1855 |
| 716 | Plant Morphology | 2 | 20 | 747 | 1010 |
| 716 | infrared radiation | 2 | 20 | 740 | 915 |
| 716 | Transnational corporations | 1 | 20 | 809 | 910 |
| 716 | plasticity | 1 | 20 | 517 | 704 |
| 716 | Business | 2 | 20 | 2477 | 3100 |
| 716 | insurance | 1 | 20 | 649 | 607 |
| 716 | Mitochondrial DNA | 10 | 20 | 32 | 253 |
| 716 | Growth | 1 | 20 | 1316 | 1598 |
| 726 | Plasma chemistry | 1 | 19 | 656 | 720 |
| 726 | Chemical kinetics | 4 | 19 | 672 | 1066 |
| 726 | Wetland ecology | 2 | 19 | 573 | 849 |
| 726 | Geobiology | 2 | 19 | 502 | 786 |
| 726 | Surface properties | 3 | 19 | 1183 | 2097 |
| 731 | Computer Architecture | 5 | 18 | 395 | 813 |
| 731 | Mining Geology | 2 | 18 | 110 | 153 |
| 731 | Population Genetics | 3 | 18 | 1053 | 1774 |
| 731 | nuclear magnetic resonance | 2 | 18 | 1029 | 1179 |
| 731 | Magnetic Resonance Spectroscopy | 2 | 18 | 1198 | 1379 |
| 731 | X-rays | 6 | 18 | 330 | 758 |
| 731 | crops | 4 | 18 | 87 | 280 |
| 731 | Fluorescence | 3 | 18 | 463 | 868 |
| 731 | packaging | 1 | 18 | 257 | 323 |
| 740 | Dentistry | 3 | 17 | 714 | 930 |
| 740 | Information Systems | 2 | 17 | 1655 | 2253 |
| 740 | Ecological Engineering | 1 | 17 | 1093 | 1464 |
| 740 | Critical Care | 1 | 17 | 1443 | 1667 |
| 740 | Critical Care Medicine | 1 | 17 | 1368 | 1617 |
| 740 | Geomagnetism | 2 | 17 | 637 | 875 |
| 740 | Combinatorial optimization | 4 | 17 | 439 | 774 |
| 740 | Ichthyology | 5 | 17 | 310 | 674 |
| 740 | Gene expression regulation | 2 | 17 | 1031 | 1459 |
| 740 | Freeze-Drying | 3 | 17 | 348 | 764 |
| 740 | Hypothermia | 3 | 17 | 348 | 764 |
| 740 | Freeze Drying | 3 | 17 | 348 | 764 |
| 740 | Wetland conservation | 1 | 17 | 616 | 699 |
| 740 | Hormones | 4 | 17 | 942 | 1740 |
| 740 | sex differences | 1 | 17 | 274 | 384 |
| 740 | Aging | 1 | 17 | 2989 | 3028 |
| 740 | Fisheries | 5 | 17 | 1114 | 2060 |
| 740 | Fish | 5 | 17 | 236 | 578 |
| 740 | Wetlands | 1 | 17 | 626 | 703 |
| 759 | Ecological Genetics | 2 | 16 | 786 | 1070 |
| 759 | Conservation Biology | 2 | 16 | 1238 | 1688 |
| 759 | Agronomy | 3 | 16 | 399 | 974 |
| 759 | Medical Physics | 4 | 16 | 1189 | 1980 |
| 759 | Oncogenes | 1 | 16 | 1132 | 1482 |
| 759 | Drug delivery systems | 4 | 16 | 1309 | 2354 |
| 759 | Heritage Tourism | 1 | 16 | 285 | 385 |
| 759 | cultural tourism | 1 | 16 | 285 | 385 |
| 759 | Latin America | 3 | 16 | 1137 | 1297 |
| 759 | phase diagrams | 1 | 16 | 249 | 236 |
| 759 | Genetic therapy | 2 | 16 | 976 | 1423 |
| 759 | gene transfer | 2 | 16 | 310 | 547 |
| 759 | genetic transformation | 2 | 16 | 310 | 547 |
| 772 | Occupational Therapy | 4 | 15 | 837 | 1313 |
| 772 | Marine Biotechnology | 1 | 15 | 405 | 613 |
| 772 | Surface-Active Agents | 2 | 15 | 1345 | 2142 |
| 772 | Nonlinear Dynamics | 2 | 15 | 1949 | 2399 |
| 772 | Pest control | 1 | 15 | 270 | 306 |
| 772 | peptides | 2 | 15 | 966 | 1412 |
| 778 | Thermodynamics | 8 | 14 | 725 | 1715 |
| 778 | Algebra | 7 | 14 | 1063 | 1566 |
| 778 | symbiosis | 2 | 14 | 182 | 436 |
| 778 | Superconductors | 2 | 14 | 972 | 1136 |
| 778 | bioclimatology | 1 | 14 | 1552 | 1784 |
| 778 | Fertilizers | 2 | 14 | 407 | 708 |
| 778 | enzymes | 2 | 14 | 1595 | 2298 |
| 778 | Money | 2 | 14 | 462 | 869 |
| 778 | Catalysts | 3 | 14 | 692 | 1271 |
| 778 | Vaccines | 2 | 14 | 1628 | 2352 |
| 788 | Economic Development | 1 | 13 | 2246 | 2470 |
| 788 | Clinical Biochemistry | 1 | 13 | 1499 | 1649 |
| 788 | Kinetics | 1 | 13 | 902 | 1005 |
| 788 | Radioisotopes | 2 | 13 | 1195 | 1518 |
| 788 | drug development | 2 | 13 | 980 | 1672 |
| 788 | RNA | 2 | 13 | 558 | 986 |
| 794 | Archaeology | 2 | 12 | 1397 | 1680 |
| 794 | Pediatrics | 1 | 12 | 2493 | 2764 |
| 794 | Forecasting | 1 | 12 | 950 | 1037 |
| 794 | Functional foods | 3 | 12 | 340 | 980 |
| 794 | Crystallography | 19 | 12 | 645 | 1833 |
| 794 | Respiratory system | 1 | 12 | 752 | 971 |
| 794 | Genetic regulation | 1 | 12 | 1397 | 1684 |
| 794 | protein | 1 | 12 | 1567 | 1791 |
| 794 | Dementia | 1 | 12 | 1618 | 1391 |
| 794 | Alzheimer's disease | 1 | 12 | 1645 | 1452 |
| 794 | Respiration | 1 | 12 | 1731 | 2059 |
| 805 | Orthopedics | 2 | 11 | 1346 | 1832 |
| 805 | Medical genetics | 1 | 11 | 2283 | 2810 |
| 805 | Orthopedic Surgery | 2 | 11 | 779 | 1136 |
| 805 | Organizational learning | 1 | 11 | 991 | 1149 |
| 805 | Sensor Networks | 2 | 11 | 342 | 569 |
| 805 | Knowledge management | 1 | 11 | 1029 | 1123 |
| 805 | Raman spectroscopy | 2 | 11 | 962 | 1555 |
| 805 | sustainability | 2 | 11 | 1079 | 1835 |
| 805 | plasma spraying | 3 | 11 | 219 | 541 |
| 805 | Steroids | 2 | 11 | 994 | 1594 |
| 805 | Metrology | 2 | 11 | 106 | 196 |
| 816 | Obstetrics | 3 | 10 | 1709 | 2701 |
| 816 | Graph Theory | 1 | 10 | 1181 | 1074 |
| 816 | Regional Planning | 1 | 10 | 2084 | 2377 |
| 816 | Risk Management | 2 | 10 | 810 | 1430 |
| 816 | Immunopathology | 1 | 10 | 1330 | 1632 |
| 816 | epilepsy | 1 | 10 | 1225 | 1522 |
| 816 | Photogrammetry | 2 | 10 | 1037 | 1068 |
| 816 | Bioacoustics | 1 | 10 | 197 | 278 |
| 816 | Animal husbandry | 2 | 10 | 383 | 679 |
| 816 | Regional Development | 1 | 10 | 488 | 605 |
| 816 | Wildlife management | 1 | 10 | 826 | 942 |
| 816 | Environmental risk assessment | 3 | 10 | 360 | 974 |
| 816 | Development planning | 1 | 10 | 452 | 575 |
| 816 | Medical innovations | 1 | 10 | 1246 | 1759 |
| 816 | Vocational guidance | 1 | 10 | 1374 | 1657 |
| 816 | Matroids | 1 | 10 | 400 | 490 |
| 816 | Futures | 1 | 10 | 541 | 669 |
| 816 | Central Asia | 1 | 10 | 411 | 603 |
| 816 | Combinatorial analysis | 1 | 10 | 1442 | 1316 |
| 816 | Economic planning | 1 | 10 | 936 | 1244 |
| 816 | rivers | 1 | 10 | 506 | 720 |
| 816 | Isotopes | 1 | 10 | 244 | 367 |
| 838 | Radiology | 2 | 9 | 1340 | 1826 |
| 838 | Geriatric Nursing | 1 | 9 | 943 | 1067 |
| 838 | Language Acquisition | 1 | 9 | 604 | 723 |
| 838 | Applied Linguistics | 1 | 9 | 1034 | 1063 |
| 838 | Educational Technology | 1 | 9 | 2570 | 3102 |
| 838 | Veterinary Immunology | 2 | 9 | 390 | 732 |
| 838 | Flexible manufacturing systems | 1 | 9 | 783 | 1117 |
| 838 | Integrated Circuits | 4 | 9 | 696 | 1174 |
| 838 | Regeneration | 1 | 9 | 140 | 245 |
| 838 | Behavioral research | 4 | 9 | 470 | 1402 |
| 838 | Strategic planning | 1 | 9 | 1267 | 1629 |
| 838 | Sarcopenia | 1 | 9 | 620 | 868 |
| 838 | sustainable forestry | 1 | 9 | 248 | 337 |
| 838 | clay minerals | 1 | 9 | 492 | 704 |
| 838 | Food preferences | 1 | 9 | 665 | 930 |
| 838 | Muscles | 1 | 9 | 1060 | 1361 |
| 854 | Nuclear Engineering | 3 | 8 | 1341 | 2041 |
| 854 | Sports Medicine | 1 | 8 | 3034 | 3102 |
| 854 | Structural health monitoring | 1 | 8 | 373 | 585 |
| 854 | Electromagnetic compatibility | 1 | 8 | 549 | 699 |
| 854 | cosmic rays | 1 | 8 | 682 | 843 |
| 854 | structural stability | 1 | 8 | 516 | 769 |
| 854 | Soft Condensed Matter | 6 | 8 | 704 | 1803 |
| 854 | Obesity | 1 | 8 | 2157 | 2801 |
| 854 | Eating Disorders | 1 | 8 | 1172 | 1487 |
| 854 | Feeding and Eating Disorders | 1 | 8 | 1125 | 1433 |
| 854 | Sports | 1 | 8 | 2731 | 2775 |
| 854 | Cardiovascular diseases | 2 | 8 | 1449 | 2063 |
| 854 | Carbohydrates | 1 | 8 | 673 | 928 |
| 854 | Capital market | 1 | 8 | 810 | 1101 |
| 854 | rare diseases | 1 | 8 | 823 | 1072 |
| 854 | biological agents | 4 | 8 | 595 | 1094 |
| 854 | Drug discovery | 1 | 8 | 469 | 719 |
| 854 | Quantum theory | 3 | 8 | 999 | 1545 |
| 872 | Law | 1 | 7 | 1835 | 1569 |
| 872 | Medical Technology | 2 | 7 | 1750 | 2814 |
| 872 | Food Science | 1 | 7 | 460 | 686 |
| 872 | Health Services Research | 1 | 7 | 2061 | 2589 |
| 872 | Architectural Design | 1 | 7 | 819 | 971 |
| 872 | Nuclear Fusion | 2 | 7 | 650 | 945 |
| 872 | Nuclear Chemistry | 1 | 7 | 1550 | 1742 |
| 872 | Radiochemistry | 1 | 7 | 1475 | 1627 |
| 872 | Pesticide residues | 1 | 7 | 153 | 341 |
| 872 | Socioeconomic Factors | 1 | 7 | 1252 | 1838 |
| 872 | Immunotoxicology | 2 | 7 | 390 | 836 |
| 872 | Primary health care | 1 | 7 | 2202 | 2741 |
| 872 | Radio wave propagation | 1 | 7 | 1055 | 1272 |
| 872 | Marriage | 1 | 7 | 883 | 1208 |
| 872 | Ubiquitous computing | 2 | 7 | 396 | 679 |
| 872 | starch | 3 | 7 | 348 | 840 |
| 872 | Protective coatings | 1 | 7 | 353 | 476 |
| 872 | visualization | 2 | 7 | 1559 | 1812 |
| 872 | Family | 1 | 7 | 1499 | 1911 |
| 872 | East Asia | 1 | 7 | 1173 | 1398 |
| 872 | nucleotides | 2 | 7 | 402 | 642 |
| 872 | immigrants | 1 | 7 | 76 | 134 |
| 872 | Transplantation | 1 | 7 | 1058 | 1341 |
| 872 | Southeast Asia | 3 | 7 | 364 | 869 |
| 872 | body temperature | 2 | 7 | 696 | 1391 |
| 872 | biopolymers | 4 | 7 | 966 | 2008 |
| 898 | Atmospheric Science | 1 | 6 | 319 | 476 |
| 898 | Linguistics | 3 | 6 | 1298 | 2010 |
| 898 | Database Management | 1 | 6 | 1123 | 1461 |
| 898 | Marine Ecology | 2 | 6 | 878 | 1446 |
| 898 | Occupational Health | 3 | 6 | 988 | 1926 |
| 898 | Medical Oncology | 4 | 6 | 1130 | 2283 |
| 898 | Plant Taxonomy | 1 | 6 | 627 | 815 |
| 898 | Optoelectronics | 3 | 6 | 529 | 1043 |
| 898 | Histochemistry | 1 | 6 | 1432 | 1793 |
| 898 | Animal health | 2 | 6 | 590 | 980 |
| 898 | industrial hygiene | 3 | 6 | 970 | 1871 |
| 898 | Expert Systems | 1 | 6 | 531 | 770 |
| 898 | biofuels | 1 | 6 | 474 | 834 |
| 898 | Global warming | 1 | 6 | 339 | 433 |
| 898 | Sequential Analysis | 1 | 6 | 172 | 207 |
| 898 | medical education | 1 | 6 | 2253 | 2726 |
| 898 | Chemical structure | 2 | 6 | 713 | 1269 |
| 898 | liver | 1 | 6 | 477 | 685 |
| 898 | silicon | 3 | 6 | 344 | 1003 |
| 898 | impact | 1 | 6 | 496 | 742 |
| 918 | Geotechnical Engineering | 1 | 5 | 764 | 990 |
| 918 | Veterinary Pathology | 2 | 5 | 421 | 758 |
| 918 | Cartography | 1 | 5 | 828 | 970 |
| 918 | Fluid Dynamics | 3 | 5 | 1062 | 1917 |
| 918 | Historic Preservation | 1 | 5 | 268 | 448 |
| 918 | Geodesy | 1 | 5 | 1266 | 1709 |
| 918 | Infrared spectroscopy | 1 | 5 | 684 | 1078 |
| 918 | DNA methylation | 1 | 5 | 457 | 727 |
| 918 | Welding | 2 | 5 | 321 | 593 |
| 918 | Cell cycle | 1 | 5 | 500 | 782 |
| 918 | cell proliferation | 1 | 5 | 534 | 814 |
| 918 | Industry | 1 | 5 | 433 | 858 |
| 918 | High performance computing | 1 | 5 | 204 | 267 |
| 918 | applications | 1 | 5 | 136 | 166 |
| 918 | Pregnancy | 1 | 5 | 1251 | 1726 |
| 933 | Speech-Language Pathology | 1 | 4 | 527 | 801 |
| 933 | Dermatology | 1 | 4 | 1757 | 2190 |
| 933 | Rural Development | 1 | 4 | 898 | 1274 |
| 933 | greenhouse effect | 1 | 4 | 134 | 320 |
| 933 | Quality Assurance | 1 | 4 | 710 | 1185 |
| 933 | Marine Geophysics | 1 | 4 | 491 | 724 |
| 933 | Laser therapy | 1 | 4 | 740 | 1048 |
| 933 | global environmental change | 1 | 4 | 1223 | 1887 |
| 933 | Formal Languages | 1 | 4 | 568 | 682 |
| 933 | Solutions | 1 | 4 | 702 | 989 |
| 933 | automatic speech recognition | 1 | 4 | 324 | 552 |
| 933 | Carbon dioxide | 1 | 4 | 134 | 320 |
| 933 | immunoassay | 1 | 4 | 427 | 711 |
| 933 | Climate | 1 | 4 | 1003 | 1557 |
| 933 | Navier-Stokes equations | 3 | 4 | 151 | 406 |
| 933 | optical devices | 2 | 4 | 621 | 1133 |
| 933 | Grasslands | 2 | 4 | 79 | 220 |
| 950 | Arts | 2 | 3 | 541 | 883 |
| 950 | Agricultural Science | 1 | 3 | 384 | 722 |
| 950 | Fluid Mechanics | 2 | 3 | 1652 | 2572 |
| 950 | Mathematical Economics | 1 | 3 | 502 | 645 |
| 950 | Developmental Psychology | 1 | 3 | 1510 | 2112 |
| 950 | Social Psychology | 1 | 3 | 2965 | 3734 |
| 950 | Aerial Photography | 1 | 3 | 48 | 92 |
| 950 | Radiopharmaceuticals | 1 | 3 | 502 | 652 |
| 950 | Natural resources | 1 | 3 | 1150 | 1665 |
| 950 | Noise | 2 | 3 | 184 | 498 |
| 950 | Electromagnetic waves | 1 | 3 | 586 | 881 |
| 950 | Action Research | 1 | 3 | 481 | 860 |
| 950 | Food inspection | 1 | 3 | 85 | 198 |
| 950 | Sound | 2 | 3 | 1217 | 1885 |
| 950 | personality | 1 | 3 | 2051 | 2743 |
| 950 | agricultural productivity | 1 | 3 | 136 | 301 |
| 950 | Social behavior | 1 | 3 | 1710 | 2329 |
| 950 | North America | 1 | 3 | 1308 | 1784 |
| 950 | Hydrocarbons | 1 | 3 | 198 | 338 |
| 950 | explosives | 1 | 3 | 338 | 493 |
| 950 | California | 1 | 3 | 586 | 840 |
| 950 | food quality | 1 | 3 | 85 | 198 |
| 950 | Muscle contraction | 2 | 3 | 459 | 893 |
| 973 | Rheumatology | 1 | 2 | 1268 | 1715 |
| 973 | Biochemical Genetics | 1 | 2 | 856 | 1229 |
| 973 | Financial Engineering | 1 | 2 | 365 | 787 |
| 973 | Educational Psychology | 1 | 2 | 2003 | 2783 |
| 973 | Interferons | 1 | 2 | 477 | 783 |
| 973 | Entrepreneurship | 1 | 2 | 1626 | 2419 |
| 973 | Molecular ecology | 1 | 2 | 1347 | 1983 |
| 973 | Teaching | 2 | 2 | 2071 | 3423 |
| 973 | Enzyme | 1 | 2 | 887 | 1436 |
| 973 | Ukraine | 1 | 2 | 122 | 94 |
| 973 | wetland management | 1 | 2 | 360 | 724 |
| 973 | Cytokine | 1 | 2 | 625 | 1029 |
| 973 | Psychophysiology | 1 | 2 | 3016 | 3879 |
| 986 | Animal Biotechnology | 1 | 1 | 326 | 648 |
| 986 | Geriatric Psychiatry | 1 | 1 | 1359 | 2001 |
| 986 | Topology | 1 | 1 | 518 | 696 |
| 986 | Coastal zone management | 1 | 1 | 1076 | 1767 |
| 986 | Neurophysiology | 1 | 1 | 3087 | 3982 |
| 986 | Multiphase Flow | 1 | 1 | 627 | 974 |
| 986 | Water Conservation | 1 | 1 | 167 | 464 |
| 986 | electric vehicles | 1 | 1 | 519 | 824 |
| 986 | Substance Abuse | 1 | 1 | 1798 | 2547 |
| 986 | Marine resources | 1 | 1 | 1105 | 1782 |
| 986 | supercritical fluids | 1 | 1 | 679 | 1117 |
| 997 | Natural Sciences | 1 | 0 | 255 | 531 |
| 997 | Aerospace Engineering | 1 | 0 | 460 | 786 |
| 997 | Public Relations | 1 | 0 | 807 | 1433 |
| 997 | Forensic Psychology | 1 | 0 | 631 | 1021 |