| 1 | Physics | 885 | 57.7K | 454 | 446 |
| 2 | Science | 567 | 52.8K | 498 | 407 |
| 3 | Geophysics | 986 | 45.1K | 63 | 63 |
| 4 | Biology | 469 | 44.4K | 539 | 454 |
| 5 | Chemistry | 968 | 37.2K | 424 | 500 |
| 6 | Geology | 507 | 28.3K | 77 | 62 |
| 7 | Natural history | 109 | 25.4K | 391 | 378 |
| 8 | Geochemistry | 396 | 25.3K | 40 | 41 |
| 9 | Astronomy | 257 | 24.8K | 353 | 271 |
| 10 | Atmospheric Physics | 430 | 23.5K | 31 | 34 |
| 11 | Atmospheric Chemistry | 389 | 22.1K | 14 | 29 |
| 12 | Biochemistry | 234 | 21.1K | 1073 | 595 |
| 13 | Ecology | 356 | 19.9K | 391 | 394 |
| 14 | Earth Sciences | 357 | 19.5K | 48 | 59 |
| 15 | Nanotechnology | 238 | 18.2K | 438 | 292 |
| 16 | Pollution | 205 | 16.6K | 450 | 296 |
| 17 | Materials | 393 | 16.5K | 431 | 408 |
| 18 | Cytology | 54 | 16.5K | 904 | 327 |
| 19 | Cell Biology | 41 | 15.9K | 975 | 325 |
| 20 | Research | 509 | 15.6K | 451 | 476 |
| 21 | Meteorites | 167 | 15.5K | 56 | 42 |
| 22 | Microbiology | 234 | 15.0K | 602 | 469 |
| 23 | atmospheric models | 324 | 14.4K | 3 | 7 |
| 24 | Materials Science | 194 | 13.0K | 424 | 281 |
| 25 | Oceanography | 316 | 12.6K | 51 | 77 |
| 26 | Microbial Ecology | 154 | 12.4K | 120 | 120 |
| 27 | Planets | 243 | 12.0K | 90 | 91 |
| 28 | Medicine | 296 | 12.0K | 816 | 751 |
| 29 | Statistics | 77 | 11.8K | 437 | 88 |
| 30 | Solid State Physics | 377 | 11.3K | 301 | 306 |
| 31 | Condensed Matter | 290 | 11.1K | 350 | 318 |
| 32 | Marine Biology | 261 | 10.8K | 84 | 87 |
| 33 | Molecular Biology | 182 | 10.8K | 956 | 773 |
| 34 | Astrophysics | 69 | 10.4K | 797 | 514 |
| 35 | Biogeochemistry | 219 | 10.2K | 10 | 30 |
| 36 | Neurology | 185 | 10.1K | 612 | 551 |
| 37 | environmental pollution | 117 | 10.0K | 502 | 235 |
| 38 | Meteorology | 242 | 9.6K | 121 | 154 |
| 39 | Environmental Health | 155 | 9.2K | 504 | 386 |
| 40 | Climatology | 211 | 9.1K | 70 | 100 |
| 41 | Environment | 125 | 8.8K | 600 | 579 |
| 42 | nanoscience | 75 | 8.6K | 443 | 218 |
| 43 | Paleoclimatology | 173 | 8.5K | 9 | 12 |
| 44 | Toxicology | 68 | 8.2K | 858 | 301 |
| 45 | Paleoceanography | 108 | 7.7K | 3 | 3 |
| 46 | Paleoecology | 155 | 7.5K | 11 | 11 |
| 47 | Biodiversity | 158 | 7.2K | 64 | 94 |
| 48 | Paleogeography | 141 | 6.9K | 9 | 7 |
| 49 | Nuclear Physics | 198 | 6.8K | 694 | 636 |
| 50 | Quantum Gravity | 176 | 6.8K | 339 | 337 |
| 51 | Catalysis | 231 | 6.7K | 338 | 481 |
| 52 | Mathematics | 429 | 6.5K | 400 | 361 |
| 53 | Biotechnology | 122 | 6.4K | 752 | 693 |
| 54 | Statistical physics | 116 | 5.9K | 574 | 369 |
| 55 | Botany | 132 | 5.4K | 523 | 522 |
| 56 | Cosmochemistry | 98 | 5.3K | 18 | 20 |
| 57 | Public Health | 348 | 5.3K | 252 | 487 |
| 58 | Bioengineering | 102 | 5.2K | 533 | 530 |
| 59 | Environmental Management | 53 | 4.9K | 470 | 202 |
| 60 | Europe | 220 | 4.9K | 150 | 162 |
| 61 | Environmental Microbiology | 62 | 4.9K | 101 | 90 |
| 62 | Manufacturing Processes | 250 | 4.8K | 66 | 125 |
| 63 | Surface Chemistry | 105 | 4.6K | 576 | 459 |
| 64 | Chemical Engineering | 210 | 4.6K | 452 | 716 |
| 65 | Biocompatible Materials | 80 | 4.5K | 683 | 632 |
| 66 | Engineering | 155 | 4.5K | 288 | 222 |
| 67 | cryosphere | 127 | 4.4K | 5 | 23 |
| 68 | Artificial Intelligence | 133 | 4.4K | 302 | 348 |
| 68 | Nanostructured Materials | 131 | 4.4K | 340 | 376 |
| 70 | Brain | 77 | 4.3K | 488 | 374 |
| 71 | Spectrum analysis | 151 | 4.3K | 511 | 684 |
| 72 | Green Chemistry | 35 | 4.2K | 388 | 164 |
| 73 | Neurochemistry | 113 | 4.2K | 262 | 278 |
| 74 | Biophysics | 94 | 4.2K | 996 | 833 |
| 75 | Colloids | 74 | 4.2K | 744 | 542 |
| 76 | Environmental monitoring | 65 | 4.2K | 587 | 421 |
| 77 | miniaturization | 62 | 4.1K | 254 | 244 |
| 78 | Psychophysiology | 108 | 4.0K | 397 | 414 |
| 79 | Biomedical Engineering | 67 | 3.8K | 951 | 616 |
| 80 | Economics | 152 | 3.8K | 471 | 440 |
| 81 | Microelectronics | 62 | 3.8K | 266 | 226 |
| 82 | Psychiatry | 220 | 3.8K | 299 | 594 |
| 83 | Nonlinear Dynamics | 60 | 3.7K | 427 | 220 |
| 84 | Environmental Engineering | 59 | 3.5K | 621 | 481 |
| 85 | Radiation | 101 | 3.4K | 126 | 79 |
| 86 | Photochemistry | 32 | 3.4K | 340 | 54 |
| 87 | Epidemiology | 140 | 3.4K | 311 | 395 |
| 88 | Organic Geochemistry | 70 | 3.4K | 13 | 23 |
| 89 | ecosystem | 39 | 3.3K | 222 | 133 |
| 90 | Production Engineering | 247 | 3.3K | 37 | 80 |
| 91 | radiative transfer | 90 | 3.3K | 25 | 33 |
| 92 | Polymers | 121 | 3.3K | 710 | 710 |
| 93 | Plant Ecology | 69 | 3.3K | 216 | 233 |
| 94 | Environmental pollutants | 50 | 3.3K | 299 | 149 |
| 95 | System analysis | 83 | 3.3K | 216 | 142 |
| 96 | Psychology | 268 | 3.2K | 339 | 655 |
| 97 | Control Theory | 59 | 3.2K | 271 | 133 |
| 98 | Public Policy | 85 | 3.2K | 133 | 112 |
| 99 | Mineralogy | 74 | 3.1K | 197 | 169 |
| 100 | pollutants | 37 | 3.1K | 295 | 129 |
| 101 | Electrochemistry | 99 | 3.1K | 721 | 571 |
| 102 | Obesity | 66 | 3.1K | 271 | 260 |
| 103 | Water | 71 | 3.0K | 361 | 451 |
| 104 | Analytical Chemistry | 73 | 3.0K | 934 | 751 |
| 105 | Sociology | 164 | 2.8K | 218 | 358 |
| 106 | Petrology | 51 | 2.8K | 206 | 167 |
| 107 | Pharmacology | 52 | 2.7K | 1206 | 878 |
| 108 | Zoology | 84 | 2.7K | 302 | 250 |
| 109 | Photobiology | 22 | 2.7K | 275 | 38 |
| 110 | Biodiversity conservation | 35 | 2.6K | 365 | 409 |
| 111 | polymerization | 99 | 2.6K | 653 | 676 |
| 112 | Signal Processing | 55 | 2.5K | 513 | 425 |
| 113 | Communication | 59 | 2.5K | 312 | 252 |
| 114 | Climate change | 27 | 2.5K | 248 | 359 |
| 114 | Eutrophication | 27 | 2.5K | 241 | 355 |
| 116 | Environmental Toxicology | 32 | 2.5K | 529 | 297 |
| 117 | sanitation | 32 | 2.4K | 355 | 367 |
| 118 | Virology | 20 | 2.4K | 945 | 680 |
| 119 | Social policy | 104 | 2.4K | 14 | 29 |
| 120 | Human genetics | 17 | 2.4K | 713 | 739 |
| 121 | Product Design | 182 | 2.4K | 10 | 14 |
| 122 | Health Policy | 163 | 2.3K | 112 | 248 |
| 123 | Pharmaceutical Chemistry | 45 | 2.3K | 904 | 655 |
| 124 | Developmental Biology | 25 | 2.3K | 569 | 422 |
| 125 | environmental protection | 58 | 2.3K | 535 | 546 |
| 126 | Paleontology | 82 | 2.3K | 134 | 101 |
| 127 | Algae | 41 | 2.3K | 100 | 55 |
| 128 | United States | 56 | 2.3K | 983 | 717 |
| 129 | Fisheries | 33 | 2.2K | 327 | 154 |
| 130 | Water pollution | 57 | 2.1K | 472 | 543 |
| 131 | Magnetic Resonance Spectroscopy | 38 | 2.1K | 244 | 117 |
| 132 | Organic Chemistry | 43 | 2.1K | 889 | 578 |
| 133 | actuators | 61 | 2.0K | 302 | 342 |
| 133 | transducers | 61 | 2.0K | 302 | 342 |
| 135 | Neuropsychology | 59 | 2.0K | 412 | 405 |
| 136 | Electronics | 56 | 2.0K | 727 | 543 |
| 137 | Environmental Chemistry | 20 | 2.0K | 602 | 413 |
| 138 | Political Science | 107 | 1.9K | 178 | 216 |
| 139 | Cognitive neuroscience | 19 | 1.9K | 345 | 252 |
| 140 | Petroleum Geology | 56 | 1.9K | 30 | 39 |
| 141 | Mathematical Physics | 71 | 1.9K | 561 | 460 |
| 142 | preventive medicine | 130 | 1.9K | 51 | 178 |
| 143 | Automation | 49 | 1.9K | 433 | 480 |
| 144 | Biogeochemical cycles | 32 | 1.9K | 65 | 102 |
| 145 | Metallurgy | 85 | 1.9K | 286 | 381 |
| 146 | Neurophysiology | 62 | 1.8K | 570 | 689 |
| 147 | Robotics | 51 | 1.8K | 256 | 227 |
| 148 | polar regions | 55 | 1.8K | 34 | 21 |
| 149 | psychotherapy | 186 | 1.8K | 31 | 268 |
| 150 | plant molecular biology | 18 | 1.8K | 554 | 435 |
| 151 | Technology | 70 | 1.7K | 625 | 641 |
| 152 | Mass Spectrometry | 25 | 1.7K | 311 | 139 |
| 153 | Optical materials | 31 | 1.7K | 787 | 630 |
| 154 | Health Services Research | 35 | 1.7K | 314 | 216 |
| 155 | Sedimentary rocks | 33 | 1.7K | 40 | 35 |
| 156 | Optics | 118 | 1.7K | 671 | 779 |
| 157 | Data Mining | 32 | 1.7K | 247 | 226 |
| 158 | Marine Geology | 51 | 1.7K | 37 | 44 |
| 159 | Composite Materials | 59 | 1.7K | 514 | 696 |
| 160 | soil microbiology | 34 | 1.6K | 318 | 398 |
| 161 | data collection | 30 | 1.6K | 126 | 157 |
| 162 | Cancer | 28 | 1.6K | 900 | 794 |
| 163 | Physiology | 48 | 1.6K | 962 | 949 |
| 164 | International Relations | 57 | 1.6K | 132 | 107 |
| 165 | biological evolution | 44 | 1.6K | 441 | 571 |
| 166 | Information Theory | 29 | 1.6K | 346 | 214 |
| 167 | global environmental change | 28 | 1.6K | 115 | 135 |
| 168 | Sedimentology | 40 | 1.6K | 42 | 56 |
| 169 | Nervous system | 38 | 1.6K | 569 | 572 |
| 170 | Nanostructures | 26 | 1.6K | 506 | 380 |
| 171 | Plant diseases | 15 | 1.6K | 826 | 310 |
| 172 | Small Business | 14 | 1.6K | 234 | 195 |
| 173 | Zeolites | 40 | 1.5K | 93 | 94 |
| 174 | marketing | 20 | 1.5K | 715 | 466 |
| 175 | Physical Chemistry | 47 | 1.5K | 468 | 514 |
| 176 | Operations Research | 72 | 1.5K | 313 | 451 |
| 177 | Computational Biology | 27 | 1.5K | 659 | 516 |
| 178 | Seaweed | 30 | 1.5K | 93 | 68 |
| 179 | Behavior | 42 | 1.5K | 740 | 868 |
| 180 | Chemical Oceanography | 28 | 1.4K | 50 | 62 |
| 181 | Clinical Chemistry | 31 | 1.4K | 716 | 607 |
| 182 | Coral reef biology | 34 | 1.4K | 29 | 30 |
| 183 | management | 44 | 1.4K | 835 | 973 |
| 184 | Mental Disorders | 27 | 1.4K | 764 | 658 |
| 185 | Social Sciences | 99 | 1.4K | 361 | 488 |
| 186 | Cognitive Science | 31 | 1.4K | 325 | 319 |
| 187 | Anatomy | 27 | 1.4K | 567 | 420 |
| 188 | Biochemical Engineering | 31 | 1.4K | 1006 | 1168 |
| 189 | Soil Science | 13 | 1.3K | 844 | 384 |
| 190 | Solid State Chemistry | 79 | 1.3K | 352 | 463 |
| 191 | Europa | 34 | 1.3K | 48 | 36 |
| 192 | Geriatrics | 74 | 1.3K | 407 | 550 |
| 193 | Nanoparticles | 29 | 1.3K | 455 | 380 |
| 194 | Microbial Genetics | 7 | 1.3K | 169 | 42 |
| 194 | phytopathogenic bacteria | 7 | 1.3K | 133 | 40 |
| 196 | Software Engineering | 19 | 1.2K | 324 | 170 |
| 196 | environmental exposure | 23 | 1.2K | 493 | 308 |
| 196 | plant communities | 36 | 1.2K | 202 | 313 |
| 199 | Medical Physics | 12 | 1.2K | 712 | 396 |
| 200 | Clinical Psychology | 169 | 1.2K | 54 | 346 |
| 201 | human behavior | 32 | 1.2K | 622 | 768 |
| 202 | Bioinformatics | 14 | 1.2K | 857 | 481 |
| 203 | Microorganisms | 20 | 1.2K | 242 | 263 |
| 204 | Renewable Energy Sources | 17 | 1.2K | 1102 | 1038 |
| 205 | Regional Planning | 45 | 1.2K | 265 | 298 |
| 206 | Marine Pollution | 29 | 1.2K | 247 | 257 |
| 207 | Bioorganic chemistry | 30 | 1.2K | 883 | 727 |
| 208 | Molecular Genetics | 24 | 1.2K | 543 | 521 |
| 209 | Ceramics | 37 | 1.1K | 260 | 238 |
| 210 | Glass | 34 | 1.1K | 206 | 215 |
| 210 | pottery | 34 | 1.1K | 200 | 209 |
| 212 | Diet | 30 | 1.1K | 486 | 575 |
| 213 | Evolution | 20 | 1.1K | 639 | 572 |
| 214 | Soil biology | 36 | 1.1K | 171 | 307 |
| 215 | Nutrition | 27 | 1.1K | 1275 | 1147 |
| 216 | nuclear magnetic resonance spectroscopy | 5 | 1.1K | 566 | 82 |
| 216 | NMR | 5 | 1.1K | 392 | 17 |
| 216 | magnetic resonance | 5 | 1.1K | 407 | 17 |
| 219 | Public Administration | 31 | 1.1K | 317 | 244 |
| 220 | nuclear magnetic resonance | 33 | 1.1K | 256 | 195 |
| 221 | Social Psychology | 64 | 1.1K | 374 | 624 |
| 222 | Chronobiology | 19 | 1.0K | 73 | 36 |
| 222 | biological clocks | 19 | 1.0K | 73 | 36 |
| 222 | circadian rhythm | 19 | 1.0K | 73 | 36 |
| 225 | health planning | 15 | 1.0K | 886 | 324 |
| 226 | Numerical Analysis | 37 | 1.0K | 582 | 389 |
| 227 | Biometrics | 66 | 1.0K | 114 | 212 |
| 228 | Combustion | 35 | 1.0K | 277 | 281 |
| 229 | organization | 5 | 1.0K | 596 | 292 |
| 230 | Ocean Engineering | 29 | 1.0K | 495 | 437 |
| 231 | Circadian rhythms | 13 | 1.0K | 72 | 34 |
| 231 | biological rhythms | 13 | 1.0K | 100 | 38 |
| 233 | Ceramic materials | 35 | 997 | 220 | 224 |
| 234 | Biogeography | 19 | 971 | 327 | 340 |
| 235 | Adolescent | 18 | 954 | 712 | 444 |
| 236 | Health Education | 15 | 950 | 712 | 372 |
| 237 | extraterrestrial environment | 36 | 943 | 63 | 40 |
| 238 | Metals | 37 | 939 | 476 | 567 |
| 239 | Telecommunication | 39 | 929 | 627 | 699 |
| 240 | medical education | 13 | 928 | 712 | 345 |
| 241 | astronomical phenomena | 33 | 924 | 65 | 42 |
| 241 | Diabetes | 21 | 924 | 647 | 632 |
| 243 | Educational Psychology | 26 | 914 | 430 | 412 |
| 243 | Geodynamics | 38 | 914 | 179 | 282 |
| 245 | Environmental Policy | 67 | 912 | 460 | 1115 |
| 246 | Chronic diseases | 15 | 899 | 228 | 227 |
| 247 | Diabetes mellitus | 19 | 886 | 653 | 618 |
| 248 | Economic History | 52 | 881 | 627 | 694 |
| 249 | Primary health care | 29 | 880 | 383 | 323 |
| 250 | Fluid Dynamics | 42 | 873 | 176 | 238 |
| 251 | Organometallic compounds | 49 | 864 | 169 | 307 |
| 252 | Population Genetics | 13 | 848 | 521 | 421 |
| 253 | Neurobiology | 10 | 846 | 843 | 651 |
| 254 | Quantum theory | 14 | 842 | 413 | 193 |
| 255 | Production Management | 13 | 839 | 495 | 486 |
| 256 | mathematical analysis | 66 | 837 | 479 | 510 |
| 257 | Cognition | 47 | 832 | 375 | 579 |
| 258 | Wireless Communication Systems | 28 | 831 | 740 | 639 |
| 259 | Plant physiology | 22 | 814 | 769 | 804 |
| 260 | Education | 39 | 812 | 879 | 842 |
| 261 | Business | 16 | 802 | 912 | 870 |
| 261 | Plants | 14 | 802 | 886 | 711 |
| 263 | Genetics | 30 | 795 | 971 | 1256 |
| 264 | Fishery resources | 19 | 794 | 131 | 95 |
| 265 | Culture | 17 | 791 | 350 | 129 |
| 266 | Detectors | 45 | 789 | 188 | 292 |
| 267 | Cybernetics | 53 | 785 | 214 | 482 |
| 267 | rehabilitation | 10 | 785 | 1075 | 577 |
| 269 | Aging | 45 | 784 | 568 | 762 |
| 270 | Geomagnetism | 34 | 783 | 130 | 158 |
| 271 | Systems Biology | 17 | 781 | 512 | 352 |
| 272 | Image Processing | 22 | 775 | 785 | 711 |
| 273 | Transport | 17 | 769 | 155 | 123 |
| 273 | Sea | 17 | 769 | 129 | 87 |
| 275 | Light | 10 | 766 | 445 | 469 |
| 276 | Bioinorganic chemistry | 47 | 762 | 240 | 382 |
| 277 | Molecular ecology | 12 | 753 | 481 | 455 |
| 278 | Medical Microbiology | 11 | 751 | 984 | 811 |
| 278 | Organometallic chemistry | 53 | 751 | 254 | 390 |
| 280 | carcinogens | 7 | 750 | 508 | 264 |
| 281 | Phytochemistry | 8 | 746 | 69 | 13 |
| 281 | Phytoremediation | 8 | 746 | 69 | 13 |
| 281 | environmental remediation | 8 | 746 | 89 | 16 |
| 281 | Bioreactors | 8 | 746 | 69 | 13 |
| 285 | Continental shelf | 25 | 745 | 64 | 91 |
| 286 | economic policy | 60 | 736 | 337 | 462 |
| 287 | Hydrology | 24 | 728 | 748 | 737 |
| 288 | Oxidation-reduction | 3 | 726 | 737 | 373 |
| 289 | Embryology | 12 | 722 | 652 | 581 |
| 290 | Energy Conversion | 10 | 721 | 623 | 608 |
| 291 | Process Control | 10 | 717 | 430 | 392 |
| 292 | Speech | 7 | 715 | 583 | 281 |
| 293 | Child psychology | 16 | 713 | 564 | 561 |
| 294 | computer networks | 18 | 710 | 963 | 758 |
| 295 | Medical Oncology | 7 | 702 | 893 | 558 |
| 296 | infection | 5 | 698 | 1026 | 522 |
| 297 | Plant cells | 12 | 693 | 526 | 627 |
| 298 | Infections | 4 | 692 | 809 | 409 |
| 299 | Social behavior | 30 | 691 | 272 | 388 |
| 300 | Anxiety Disorders | 4 | 690 | 386 | 217 |
| 300 | Anxiety | 4 | 690 | 389 | 216 |
| 300 | Social Change | 14 | 690 | 341 | 380 |
| 303 | Industrial Engineering | 51 | 689 | 267 | 510 |
| 304 | Metabolism | 18 | 683 | 890 | 965 |
| 305 | Metabolic diseases | 8 | 681 | 1099 | 866 |
| 306 | Economic Development | 21 | 675 | 457 | 539 |
| 307 | Vision | 27 | 669 | 169 | 246 |
| 308 | Human-Computer Interaction | 35 | 668 | 214 | 392 |
| 309 | adolescence | 8 | 667 | 513 | 311 |
| 310 | particles | 37 | 666 | 92 | 144 |
| 311 | Child | 19 | 663 | 814 | 663 |
| 312 | United Kingdom | 28 | 661 | 394 | 522 |
| 313 | Marine Ecology | 40 | 657 | 83 | 138 |
| 314 | free radicals | 4 | 654 | 1041 | 605 |
| 315 | Psychopharmacology | 13 | 653 | 618 | 555 |
| 316 | Pathology | 10 | 651 | 936 | 713 |
| 317 | Carcinogenesis | 9 | 647 | 432 | 305 |
| 318 | Computer Science | 46 | 646 | 236 | 346 |
| 319 | Morphology | 13 | 645 | 336 | 154 |
| 319 | drug therapy | 23 | 645 | 656 | 674 |
| 321 | Ophthalmology | 23 | 643 | 595 | 596 |
| 322 | enzymes | 9 | 633 | 799 | 493 |
| 323 | Endocrinology | 15 | 621 | 1107 | 1069 |
| 323 | Germany | 150 | 621 | 11 | 24 |
| 325 | Learning | 10 | 619 | 681 | 462 |
| 326 | Youth | 9 | 614 | 340 | 235 |
| 327 | Geochemical Modeling | 17 | 609 | 70 | 98 |
| 327 | geological modeling | 17 | 609 | 101 | 114 |
| 329 | Membranes | 15 | 603 | 756 | 773 |
| 330 | Virulence | 2 | 599 | 1052 | 560 |
| 331 | Developing countries | 25 | 598 | 609 | 655 |
| 332 | mutagens | 5 | 588 | 502 | 301 |
| 333 | Paleobotany | 14 | 580 | 28 | 24 |
| 333 | Vegetation dynamics | 14 | 580 | 26 | 24 |
| 335 | Electrochemical Analysis | 16 | 576 | 641 | 509 |
| 336 | older people | 36 | 574 | 336 | 335 |
| 337 | Child Development | 31 | 572 | 502 | 720 |
| 338 | Systems Analysis | 17 | 569 | 329 | 209 |
| 339 | Physical fitness | 18 | 567 | 314 | 329 |
| 339 | Quality of life | 13 | 567 | 544 | 485 |
| 339 | Africa | 32 | 567 | 275 | 233 |
| 342 | Ethnic relations | 14 | 565 | 169 | 63 |
| 343 | proteins | 11 | 555 | 959 | 674 |
| 344 | Medical genetics | 7 | 550 | 1234 | 1029 |
| 345 | Genetic algorithms | 4 | 547 | 248 | 176 |
| 345 | Evolutionary Computation | 4 | 547 | 370 | 214 |
| 347 | Clinical Pharmacology | 18 | 541 | 430 | 382 |
| 348 | Humanities | 12 | 540 | 728 | 207 |
| 349 | Animal Behavior | 26 | 538 | 586 | 833 |
| 350 | Analytical Biochemistry | 16 | 531 | 630 | 531 |
| 351 | Antarctica | 19 | 530 | 124 | 74 |
| 352 | violence | 5 | 528 | 717 | 348 |
| 353 | Globalization | 31 | 526 | 43 | 106 |
| 354 | Magnetic Materials | 13 | 520 | 735 | 548 |
| 355 | Histology | 16 | 518 | 732 | 720 |
| 355 | Proteome | 9 | 518 | 573 | 466 |
| 357 | Cerebral cortex | 7 | 517 | 551 | 409 |
| 358 | Stochastic Processes | 6 | 516 | 623 | 142 |
| 359 | Functional Analysis | 20 | 508 | 490 | 376 |
| 360 | Comparative Physiology | 17 | 507 | 263 | 290 |
| 361 | Molecular evolution | 8 | 497 | 790 | 646 |
| 362 | Mesoporous materials | 13 | 495 | 16 | 19 |
| 363 | Latin America | 15 | 490 | 492 | 143 |
| 363 | software | 15 | 490 | 325 | 375 |
| 365 | Oxidative stress | 3 | 489 | 803 | 440 |
| 366 | genome | 8 | 483 | 751 | 732 |
| 367 | Speech Perception | 5 | 482 | 247 | 125 |
| 367 | auditory perception | 5 | 482 | 300 | 137 |
| 367 | Oral communication | 5 | 482 | 312 | 89 |
| 370 | Teaching | 12 | 481 | 822 | 538 |
| 370 | Enzyme | 5 | 481 | 364 | 171 |
| 372 | innovation | 16 | 472 | 131 | 374 |
| 373 | Soil ecology | 15 | 467 | 240 | 313 |
| 374 | race relations | 14 | 464 | 210 | 153 |
| 375 | disease outbreaks | 13 | 463 | 175 | 183 |
| 375 | Epidemics | 13 | 463 | 171 | 183 |
| 377 | individual differences | 3 | 461 | 289 | 94 |
| 377 | Autonomous robots | 7 | 461 | 75 | 56 |
| 379 | Geography | 39 | 460 | 463 | 806 |
| 379 | Topology | 35 | 460 | 25 | 37 |
| 381 | Wildlife conservation | 9 | 459 | 555 | 534 |
| 382 | Ethnic Conflict | 10 | 455 | 96 | 58 |
| 382 | forced migration | 10 | 455 | 96 | 58 |
| 384 | Cytogenetics | 11 | 454 | 605 | 661 |
| 385 | Journalism | 26 | 450 | 82 | 89 |
| 386 | Sales management | 1 | 448 | 417 | 179 |
| 386 | selling | 1 | 448 | 417 | 179 |
| 388 | Environmental Law | 48 | 445 | 107 | 637 |
| 388 | natural disasters | 19 | 445 | 314 | 467 |
| 390 | environmental indicators | 15 | 444 | 370 | 514 |
| 391 | Marine Meteorology | 13 | 439 | 145 | 157 |
| 391 | Coastal zone management | 23 | 439 | 93 | 172 |
| 393 | Carbon | 10 | 438 | 661 | 759 |
| 393 | Middle East | 20 | 438 | 232 | 154 |
| 395 | Flexible manufacturing systems | 17 | 436 | 46 | 83 |
| 396 | city planning | 17 | 435 | 585 | 586 |
| 397 | animals | 16 | 428 | 414 | 300 |
| 398 | Molecular Spectroscopy | 20 | 426 | 621 | 649 |
| 399 | personality | 16 | 425 | 617 | 763 |
| 399 | Chemical processes | 29 | 425 | 62 | 123 |
| 399 | Economic Assistance | 17 | 425 | 181 | 323 |
| 402 | Geomorphology | 32 | 423 | 323 | 706 |
| 403 | Conservation Biology | 7 | 422 | 666 | 480 |
| 404 | Cell differentiation | 4 | 421 | 1055 | 846 |
| 405 | Research Design | 15 | 420 | 405 | 479 |
| 406 | Radiography | 3 | 419 | 658 | 429 |
| 407 | micromechanics | 16 | 418 | 177 | 198 |
| 408 | Computer Graphics | 28 | 416 | 453 | 656 |
| 408 | Micropaleontology | 26 | 416 | 4 | 5 |
| 410 | Energy Policy | 10 | 414 | 1492 | 1551 |
| 410 | Crystal growth | 17 | 414 | 331 | 360 |
| 412 | histological techniques | 4 | 413 | 534 | 322 |
| 412 | Nonlinear systems | 8 | 413 | 312 | 161 |
| 414 | Information Technology | 21 | 411 | 739 | 984 |
| 415 | Engineering Geology | 20 | 405 | 469 | 612 |
| 415 | Cardiovascular diseases | 9 | 405 | 770 | 599 |
| 417 | econometric models | 3 | 402 | 655 | 156 |
| 418 | Sustainable Development | 9 | 400 | 1060 | 932 |
| 418 | Homeostasis | 2 | 400 | 427 | 478 |
| 418 | Cell metabolism | 2 | 400 | 736 | 504 |
| 421 | Genomics | 11 | 397 | 1413 | 1322 |
| 421 | sedimentary basins | 15 | 397 | 30 | 75 |
| 421 | Intellectual Property | 22 | 397 | 8 | 2 |
| 424 | patents | 18 | 394 | 1 | 2 |
| 425 | water supply | 10 | 389 | 403 | 444 |
| 426 | soil conservation | 10 | 386 | 294 | 255 |
| 426 | Astrocytes | 8 | 386 | 239 | 284 |
| 428 | Bacteriology | 6 | 385 | 1147 | 969 |
| 429 | Japan | 14 | 381 | 649 | 459 |
| 430 | Neurons | 3 | 379 | 502 | 585 |
| 431 | Crystallography | 40 | 375 | 353 | 398 |
| 432 | Molecular structure | 19 | 374 | 915 | 987 |
| 433 | Telecommunication Systems | 13 | 373 | 694 | 514 |
| 434 | Nonlinear functional analysis | 10 | 372 | 608 | 363 |
| 435 | Sustainable Engineering | 10 | 371 | 840 | 828 |
| 435 | Happiness | 3 | 371 | 434 | 143 |
| 437 | Phylogeny | 8 | 370 | 479 | 478 |
| 438 | International Finance | 10 | 368 | 932 | 753 |
| 439 | Information Science | 19 | 365 | 909 | 1254 |
| 440 | Philosophy | 29 | 364 | 499 | 377 |
| 440 | Entrepreneurship | 11 | 364 | 392 | 615 |
| 442 | Marine resources | 18 | 363 | 148 | 218 |
| 442 | energy resources | 7 | 363 | 825 | 946 |
| 444 | finance | 14 | 362 | 1101 | 968 |
| 445 | viruses | 6 | 361 | 819 | 715 |
| 446 | Mental Health | 9 | 359 | 805 | 572 |
| 446 | Multiphase Flow | 10 | 359 | 171 | 163 |
| 448 | Vocational guidance | 9 | 355 | 470 | 474 |
| 448 | Chromosomes | 16 | 355 | 271 | 440 |
| 450 | nucleic acids | 6 | 354 | 1019 | 931 |
| 451 | Human Rights | 10 | 350 | 221 | 131 |
| 451 | mass transfer | 18 | 350 | 694 | 890 |
| 453 | sustainability | 8 | 348 | 419 | 478 |
| 454 | Systems Engineering | 11 | 345 | 1109 | 947 |
| 454 | Agriculture | 10 | 345 | 1024 | 890 |
| 456 | Aggression | 1 | 343 | 803 | 236 |
| 457 | Environmental Geology | 19 | 342 | 516 | 766 |
| 457 | Regional Economics | 11 | 342 | 154 | 149 |
| 457 | Radioisotopes | 8 | 342 | 603 | 259 |
| 457 | Microscopy | 13 | 342 | 553 | 478 |
| 461 | Ecophysiology | 5 | 341 | 116 | 33 |
| 462 | Photonics | 13 | 337 | 932 | 1022 |
| 462 | Corporate governance | 6 | 337 | 348 | 196 |
| 464 | Catalysts | 15 | 334 | 183 | 226 |
| 465 | Protozoa | 9 | 333 | 169 | 163 |
| 466 | Marine Geophysics | 19 | 332 | 28 | 44 |
| 466 | Mental illness | 8 | 332 | 978 | 986 |
| 468 | Differential Equations | 13 | 331 | 476 | 386 |
| 468 | Geobiology | 17 | 331 | 103 | 160 |
| 470 | Organizational change | 10 | 330 | 291 | 268 |
| 470 | Speech Disorders | 8 | 330 | 613 | 469 |
| 472 | Psycholinguistics | 10 | 329 | 488 | 505 |
| 473 | Neural circuitry | 34 | 328 | 409 | 1060 |
| 474 | Computer-Aided Design | 11 | 327 | 554 | 467 |
| 475 | Fluid Mechanics | 15 | 323 | 646 | 693 |
| 476 | plankton | 18 | 322 | 16 | 52 |
| 477 | Medical Laboratory Science | 9 | 321 | 1057 | 1123 |
| 478 | Computational Complexity | 10 | 320 | 472 | 220 |
| 478 | hygiene | 10 | 320 | 150 | 134 |
| 480 | Liver diseases | 3 | 319 | 1006 | 776 |
| 481 | Econometrics | 18 | 318 | 500 | 561 |
| 482 | Engineering Mathematics | 15 | 316 | 760 | 683 |
| 482 | Signal Transduction | 2 | 316 | 1414 | 834 |
| 482 | Palynology | 7 | 316 | 77 | 22 |
| 482 | Food | 10 | 316 | 1683 | 1712 |
| 486 | Aquaculture | 13 | 315 | 634 | 653 |
| 487 | research and development | 9 | 314 | 92 | 158 |
| 487 | health services | 15 | 314 | 346 | 395 |
| 489 | probabilities | 13 | 313 | 658 | 451 |
| 490 | Cognitive Grammar | 5 | 312 | 33 | 14 |
| 491 | industrial relations | 23 | 311 | 215 | 278 |
| 492 | Developmental Psychology | 14 | 310 | 413 | 558 |
| 492 | Heat Exchangers | 4 | 310 | 1092 | 754 |
| 494 | Educational Technology | 7 | 308 | 1040 | 727 |
| 495 | Immunology | 7 | 307 | 1707 | 1550 |
| 496 | Social problems | 30 | 305 | 87 | 317 |
| 497 | Perception | 21 | 304 | 587 | 821 |
| 498 | Algorithms | 9 | 303 | 341 | 206 |
| 498 | health services accessibility | 10 | 303 | 415 | 370 |
| 498 | Methodology | 6 | 303 | 285 | 85 |
| 501 | Foraminifera | 9 | 301 | 21 | 17 |
| 501 | European integration | 15 | 301 | 59 | 105 |
| 501 | European Economic Community | 15 | 301 | 59 | 105 |
| 504 | Medical Anthropology | 8 | 300 | 663 | 733 |
| 505 | behavioral medicine | 8 | 299 | 682 | 770 |
| 506 | Law | 25 | 297 | 317 | 277 |
| 506 | School Psychology | 4 | 297 | 383 | 218 |
| 508 | Agricultural Ecology | 6 | 296 | 633 | 633 |
| 509 | Ethology | 6 | 295 | 980 | 949 |
| 510 | Neuropsychiatry | 10 | 294 | 366 | 382 |
| 511 | Linguistics | 65 | 292 | 179 | 529 |
| 512 | Reproduction | 9 | 289 | 1183 | 1028 |
| 513 | Pediatrics | 5 | 288 | 1424 | 1128 |
| 514 | Solar System | 8 | 287 | 422 | 393 |
| 515 | Isotopes | 4 | 285 | 62 | 12 |
| 516 | Histochemistry | 4 | 282 | 836 | 463 |
| 517 | Adolescent Psychology | 8 | 281 | 458 | 448 |
| 517 | Environmental risk assessment | 3 | 281 | 360 | 99 |
| 517 | environmental control | 3 | 281 | 156 | 60 |
| 520 | Oncogenes | 4 | 280 | 762 | 769 |
| 520 | Entomology | 18 | 280 | 868 | 915 |
| 522 | Cell cycle | 2 | 279 | 362 | 108 |
| 522 | cell proliferation | 2 | 279 | 397 | 113 |
| 522 | freshwater biology | 8 | 279 | 483 | 408 |
| 525 | Formal Languages | 7 | 278 | 128 | 24 |
| 526 | lasers | 23 | 277 | 724 | 943 |
| 527 | Food additives | 7 | 275 | 636 | 680 |
| 527 | China | 19 | 275 | 1014 | 1280 |
| 529 | Development | 9 | 274 | 364 | 468 |
| 530 | Geodesy | 10 | 273 | 277 | 273 |
| 530 | Semiconductors | 18 | 273 | 790 | 894 |
| 530 | language | 7 | 273 | 493 | 454 |
| 533 | Jurisprudence | 80 | 272 | 47 | 360 |
| 534 | atmosphere | 17 | 270 | 204 | 354 |
| 535 | Chemical industry | 81 | 269 | 88 | 475 |
| 536 | Mass Media | 16 | 268 | 226 | 165 |
| 536 | natural products | 8 | 268 | 1101 | 804 |
| 538 | Radio | 11 | 267 | 699 | 794 |
| 539 | radioactive waste | 2 | 266 | 995 | 674 |
| 539 | industrial waste | 2 | 266 | 1040 | 675 |
| 539 | Hazardous waste | 2 | 266 | 1160 | 727 |
| 539 | Ore deposits | 11 | 266 | 222 | 271 |
| 543 | soil pollution | 9 | 265 | 176 | 170 |
| 544 | Antioxidants | 1 | 263 | 1056 | 557 |
| 545 | Dynamics | 9 | 262 | 923 | 631 |
| 546 | Geographic information systems | 10 | 261 | 488 | 376 |
| 547 | Plastics | 11 | 260 | 834 | 760 |
| 548 | Developmental Disabilities | 6 | 259 | 635 | 588 |
| 548 | biopolymers | 6 | 259 | 779 | 645 |
| 550 | Imaging systems | 3 | 257 | 839 | 175 |
| 551 | Distance Education | 2 | 256 | 466 | 151 |
| 552 | Land Use Planning | 7 | 254 | 192 | 227 |
| 552 | Evolutionary economics | 14 | 254 | 23 | 54 |
| 552 | Population Dynamics | 13 | 254 | 26 | 62 |
| 555 | Population | 10 | 252 | 405 | 461 |
| 556 | Ecosystem management | 7 | 250 | 379 | 358 |
| 556 | Asia | 12 | 250 | 1298 | 1060 |
| 556 | world | 5 | 250 | 505 | 524 |
| 559 | Adolescent Medicine | 3 | 249 | 481 | 467 |
| 560 | Heterocyclic chemistry | 15 | 248 | 103 | 57 |
| 561 | drug control | 4 | 247 | 278 | 161 |
| 562 | Chromosome mapping | 9 | 245 | 878 | 1042 |
| 562 | gene mapping | 9 | 245 | 950 | 1153 |
| 564 | Hydrogeology | 20 | 244 | 118 | 306 |
| 564 | Aerosols | 14 | 244 | 192 | 261 |
| 564 | concrete | 2 | 244 | 1072 | 730 |
| 564 | Cement | 2 | 244 | 683 | 495 |
| 564 | aerosol | 14 | 244 | 128 | 185 |
| 569 | Molecules | 18 | 242 | 609 | 712 |
| 570 | Medical Ethics | 17 | 241 | 382 | 404 |
| 570 | Substance Abuse | 8 | 241 | 757 | 697 |
| 572 | Algebra | 30 | 240 | 429 | 462 |
| 572 | Hormones | 5 | 240 | 865 | 725 |
| 574 | Natural resources | 3 | 239 | 699 | 440 |
| 575 | Culture techniques | 1 | 238 | 464 | 116 |
| 575 | Attention | 16 | 238 | 605 | 837 |
| 577 | Radiobiology | 9 | 237 | 639 | 662 |
| 578 | Petroleum Engineering | 5 | 236 | 492 | 332 |
| 578 | Medical Technology | 5 | 236 | 1097 | 818 |
| 578 | Raman spectroscopy | 27 | 236 | 102 | 379 |
| 578 | international trade | 6 | 236 | 452 | 306 |
| 582 | Archaeology | 7 | 234 | 827 | 613 |
| 582 | Occupational Health | 11 | 234 | 404 | 416 |
| 582 | behavior therapy | 5 | 234 | 593 | 473 |
| 585 | Neurolinguistics | 2 | 233 | 534 | 311 |
| 586 | organizational effectiveness | 8 | 231 | 164 | 172 |
| 587 | Marine algae | 9 | 230 | 37 | 24 |
| 588 | Liposomes | 9 | 228 | 255 | 340 |
| 589 | Chemical analysis | 10 | 227 | 552 | 673 |
| 590 | Soft Condensed Matter | 5 | 226 | 788 | 621 |
| 591 | Quantum Optics | 8 | 224 | 529 | 401 |
| 591 | Sites | 4 | 224 | 457 | 386 |
| 593 | Mobile Computing | 9 | 223 | 573 | 573 |
| 593 | Social History | 14 | 223 | 170 | 125 |
| 593 | Forest Ecology | 6 | 223 | 676 | 659 |
| 593 | Forest Management | 6 | 223 | 649 | 616 |
| 597 | Systems Theory | 36 | 222 | 11 | 62 |
| 598 | occupational diseases | 9 | 221 | 349 | 432 |
| 598 | Granular materials | 5 | 221 | 417 | 303 |
| 600 | peace | 18 | 220 | 128 | 283 |
| 601 | Computational Chemistry | 5 | 217 | 504 | 418 |
| 602 | Climate Change Mitigation | 2 | 216 | 51 | 63 |
| 602 | Global warming | 2 | 216 | 191 | 66 |
| 602 | sea level | 2 | 216 | 51 | 63 |
| 605 | Lipid bilayers | 8 | 214 | 245 | 320 |
| 606 | commerce | 15 | 213 | 555 | 892 |
| 607 | fuel cells | 10 | 210 | 650 | 934 |
| 607 | Visual Perception | 16 | 210 | 571 | 857 |
| 609 | cell physiology | 2 | 208 | 1388 | 1034 |
| 610 | Computer Vision | 6 | 207 | 785 | 791 |
| 610 | Endocrine glands | 4 | 207 | 193 | 272 |
| 612 | Child welfare | 8 | 206 | 586 | 534 |
| 612 | European Union | 10 | 206 | 54 | 84 |
| 614 | Adhesion | 13 | 205 | 179 | 286 |
| 614 | adhesives | 13 | 205 | 193 | 290 |
| 616 | Transportation | 5 | 204 | 1204 | 974 |
| 616 | pigments | 3 | 204 | 878 | 475 |
| 618 | Proteomics | 5 | 203 | 754 | 707 |
| 618 | Memory | 7 | 203 | 965 | 998 |
| 620 | Mechatronics | 9 | 202 | 431 | 540 |
| 621 | Structuralism | 6 | 201 | 79 | 137 |
| 621 | Social Networks | 6 | 201 | 142 | 171 |
| 623 | Ethics | 11 | 200 | 389 | 379 |
| 623 | Machine Learning | 5 | 200 | 223 | 193 |
| 625 | Tissue Engineering | 3 | 199 | 339 | 189 |
| 626 | arthritis | 5 | 198 | 697 | 768 |
| 627 | Electrical Engineering | 65 | 197 | 604 | 1413 |
| 627 | Computational Fluid Dynamics | 8 | 197 | 338 | 342 |
| 627 | isomerism | 7 | 197 | 152 | 116 |
| 627 | Chirality | 7 | 197 | 152 | 116 |
| 631 | Bifurcation Theory | 5 | 196 | 150 | 98 |
| 632 | Digital electronics | 21 | 194 | 27 | 44 |
| 633 | school-to-work transition | 4 | 193 | 51 | 24 |
| 634 | disarmament | 7 | 191 | 75 | 71 |
| 634 | Strategic planning | 11 | 191 | 267 | 486 |
| 634 | Logic Programming | 9 | 191 | 141 | 100 |
| 634 | pain | 3 | 191 | 1090 | 818 |
| 638 | Technological Innovations | 17 | 189 | 245 | 652 |
| 639 | biological factors | 3 | 188 | 1807 | 1165 |
| 640 | Biomechanics | 8 | 185 | 732 | 818 |
| 641 | Database Management | 9 | 183 | 415 | 502 |
| 641 | Higher Education | 3 | 183 | 615 | 304 |
| 641 | Mollusks | 5 | 183 | 112 | 36 |
| 644 | hazard mitigation | 6 | 182 | 562 | 550 |
| 645 | epilepsy | 4 | 181 | 712 | 511 |
| 646 | Quantum electronics | 5 | 180 | 1242 | 869 |
| 647 | Bioenergetics | 3 | 179 | 804 | 615 |
| 648 | Public Health Administration | 28 | 177 | 84 | 156 |
| 649 | Critical Care | 3 | 176 | 1063 | 993 |
| 649 | Energy Storage | 7 | 176 | 764 | 857 |
| 649 | Critical Care Medicine | 3 | 176 | 1019 | 983 |
| 649 | Socioeconomic Factors | 7 | 176 | 422 | 472 |
| 649 | visualization | 15 | 176 | 555 | 523 |
| 654 | Oncology | 2 | 174 | 1938 | 1595 |
| 654 | Diplomatic relations | 12 | 174 | 256 | 167 |
| 656 | Production Planning | 8 | 172 | 100 | 211 |
| 656 | Production Control | 8 | 172 | 100 | 210 |
| 656 | Ultrasonics | 14 | 172 | 448 | 980 |
| 659 | Human Geography | 18 | 170 | 389 | 627 |
| 659 | Sun | 7 | 170 | 203 | 219 |
| 659 | Women's health | 6 | 170 | 741 | 656 |
| 662 | Solar Energy | 3 | 169 | 1683 | 1419 |
| 662 | Aquatic ecology | 10 | 169 | 433 | 541 |
| 664 | Biopharmaceutics | 8 | 168 | 586 | 805 |
| 664 | Climate | 6 | 168 | 319 | 394 |
| 664 | Multiple sclerosis | 4 | 168 | 448 | 236 |
| 667 | Semiotics | 20 | 167 | 44 | 64 |
| 667 | Health promotion | 31 | 167 | 216 | 626 |
| 667 | Water chemistry | 6 | 167 | 115 | 106 |
| 670 | Microwaves | 9 | 165 | 776 | 707 |
| 671 | Electrophoresis | 7 | 164 | 1013 | 1060 |
| 671 | Solitons | 3 | 164 | 1247 | 740 |
| 671 | Fractals | 3 | 164 | 1254 | 746 |
| 671 | Chaos | 3 | 164 | 1247 | 740 |
| 675 | energy conservation | 7 | 163 | 1344 | 1781 |
| 675 | Mycology | 5 | 163 | 1118 | 1060 |
| 675 | child abuse | 2 | 163 | 916 | 621 |
| 678 | Growth | 4 | 162 | 836 | 956 |
| 679 | Post-traumatic stress disorder | 4 | 161 | 607 | 560 |
| 679 | civil service | 5 | 161 | 260 | 246 |
| 679 | Ultrasound | 4 | 161 | 597 | 477 |
| 682 | Communication in politics | 11 | 160 | 48 | 100 |
| 683 | bioclimatology | 5 | 158 | 680 | 613 |
| 683 | Wetland ecology | 5 | 158 | 267 | 255 |
| 685 | Microfabrication | 15 | 157 | 71 | 183 |
| 685 | Harmonic Analysis | 2 | 157 | 196 | 107 |
| 687 | internet | 8 | 156 | 920 | 1111 |
| 688 | Psychiatric Nursing | 2 | 154 | 794 | 363 |
| 688 | Digital Media | 7 | 154 | 76 | 119 |
| 688 | Groundwater | 18 | 154 | 132 | 366 |
| 688 | coal | 4 | 154 | 1350 | 1379 |
| 688 | carbon monoxide | 2 | 154 | 461 | 299 |
| 693 | plasticity | 4 | 153 | 274 | 371 |
| 693 | Interfaces | 7 | 153 | 123 | 140 |
| 693 | libraries | 5 | 153 | 393 | 245 |
| 696 | Global Health | 7 | 151 | 575 | 529 |
| 697 | Marine Biotechnology | 3 | 149 | 207 | 158 |
| 697 | soil management | 3 | 149 | 527 | 495 |
| 697 | Energy metabolism | 2 | 149 | 637 | 494 |
| 697 | cell membrane | 2 | 149 | 598 | 480 |
| 697 | tillage | 3 | 149 | 393 | 427 |
| 702 | Wetland conservation | 4 | 148 | 212 | 183 |
| 702 | Wetlands | 4 | 148 | 221 | 184 |
| 704 | Semantic web | 5 | 147 | 50 | 70 |
| 704 | Fungi | 4 | 147 | 805 | 836 |
| 706 | Memory disorders | 1 | 146 | 495 | 206 |
| 707 | solar power | 2 | 145 | 993 | 785 |
| 707 | solar cells | 2 | 145 | 1056 | 836 |
| 709 | Biomass Energy | 6 | 144 | 1710 | 2089 |
| 709 | Atomic spectroscopy | 11 | 144 | 554 | 708 |
| 711 | Mechanical Engineering | 14 | 143 | 1193 | 1347 |
| 711 | Industrial Microbiology | 4 | 143 | 1587 | 1639 |
| 711 | Fracture mechanics | 11 | 143 | 735 | 969 |
| 711 | Sound | 4 | 143 | 889 | 586 |
| 711 | Eastern Europe | 44 | 143 | 44 | 279 |
| 711 | exobiology | 4 | 143 | 218 | 291 |
| 717 | Community Psychiatry | 4 | 142 | 727 | 705 |
| 718 | Microprocessors | 19 | 141 | 111 | 295 |
| 719 | Physical organic chemistry | 5 | 140 | 1116 | 989 |
| 719 | Food service management | 1 | 140 | 790 | 490 |
| 719 | tomography | 1 | 140 | 558 | 189 |
| 722 | mutation | 5 | 139 | 396 | 497 |
| 722 | clay | 2 | 139 | 976 | 763 |
| 722 | stability | 5 | 139 | 39 | 14 |
| 722 | hydrocolloids | 2 | 139 | 746 | 729 |
| 726 | Diagnostic Imaging | 7 | 138 | 1086 | 1133 |
| 726 | Drying | 3 | 138 | 356 | 259 |
| 728 | Land use | 2 | 137 | 1341 | 924 |
| 728 | Brain damage | 1 | 137 | 630 | 274 |
| 730 | Consumer Protection | 8 | 136 | 62 | 141 |
| 730 | consumers | 8 | 136 | 157 | 275 |
| 730 | Customer Relations | 8 | 136 | 18 | 45 |
| 730 | weather | 4 | 136 | 444 | 423 |
| 734 | clay minerals | 1 | 135 | 492 | 233 |
| 734 | environmental issues | 5 | 135 | 269 | 321 |
| 736 | Andrology | 2 | 134 | 651 | 387 |
| 737 | Discourse Analysis | 7 | 133 | 188 | 271 |
| 737 | Alloys | 10 | 133 | 85 | 80 |
| 739 | Mathematical Economics | 3 | 132 | 316 | 252 |
| 739 | Animal ecology | 9 | 132 | 636 | 843 |
| 739 | Ferroelectricity | 3 | 132 | 981 | 496 |
| 739 | Parasitology | 8 | 132 | 1361 | 1520 |
| 739 | Parasitic Diseases | 4 | 132 | 1493 | 1348 |
| 739 | Radio frequency | 3 | 132 | 431 | 312 |
| 745 | Pharmacognosy | 7 | 131 | 1166 | 1598 |
| 745 | Structural dynamics | 3 | 131 | 929 | 889 |
| 747 | Neurotoxicology | 5 | 130 | 382 | 486 |
| 747 | Depression | 2 | 130 | 392 | 396 |
| 747 | Measurement | 4 | 130 | 1182 | 978 |
| 747 | Nanomanufacturing | 12 | 130 | 23 | 19 |
| 751 | Radio wave propagation | 5 | 129 | 537 | 412 |
| 752 | Occupational Therapy | 6 | 128 | 644 | 406 |
| 752 | Vocational Education | 4 | 128 | 440 | 333 |
| 752 | Molecular Microbiology | 3 | 128 | 757 | 842 |
| 755 | Urology | 4 | 126 | 1021 | 957 |
| 755 | Genetic engineering | 6 | 126 | 1313 | 1562 |
| 755 | Industrial Safety | 7 | 126 | 693 | 848 |
| 755 | Molecular cloning | 6 | 126 | 948 | 1043 |
| 755 | Genetic recombination | 6 | 126 | 933 | 1029 |
| 755 | space environment | 1 | 126 | 286 | 133 |
| 755 | Recombinant DNA | 6 | 126 | 997 | 1086 |
| 762 | Power Electronics | 5 | 125 | 806 | 906 |
| 762 | Powder Metallurgy | 5 | 125 | 125 | 41 |
| 764 | Nanochemistry | 7 | 124 | 762 | 921 |
| 765 | Paleobiology | 5 | 123 | 246 | 146 |
| 765 | War | 5 | 123 | 116 | 83 |
| 765 | Marine biodiversity | 13 | 123 | 37 | 78 |
| 765 | urban health | 4 | 123 | 183 | 193 |
| 769 | Statistical models | 3 | 122 | 100 | 60 |
| 770 | Landscape Ecology | 6 | 121 | 294 | 453 |
| 770 | land degradation | 1 | 121 | 886 | 419 |
| 770 | Laser Spectroscopy | 6 | 121 | 578 | 541 |
| 770 | degradation | 1 | 121 | 886 | 419 |
| 774 | vibration | 2 | 120 | 1316 | 925 |
| 774 | Australia | 12 | 120 | 747 | 1113 |
| 774 | children | 6 | 120 | 294 | 406 |
| 777 | Nanobiotechnology | 4 | 119 | 328 | 526 |
| 778 | Demography | 8 | 118 | 328 | 522 |
| 778 | wind erosion | 2 | 118 | 137 | 104 |
| 780 | Quantitative Research | 5 | 117 | 155 | 221 |
| 781 | Cartography | 2 | 116 | 572 | 207 |
| 781 | Liquid Crystals | 7 | 116 | 597 | 403 |
| 781 | child behavior | 4 | 116 | 319 | 370 |
| 784 | Legislative Power | 3 | 115 | 49 | 27 |
| 785 | Glaciology | 6 | 114 | 6 | 4 |
| 785 | Radiation Protection | 14 | 114 | 156 | 207 |
| 785 | Investment analysis | 2 | 114 | 1235 | 702 |
| 785 | Surface properties | 3 | 114 | 1183 | 1213 |
| 789 | counseling | 6 | 113 | 894 | 912 |
| 790 | Drug design | 4 | 112 | 1242 | 1253 |
| 790 | family violence | 2 | 112 | 514 | 409 |
| 792 | Patient education | 5 | 111 | 393 | 518 |
| 792 | scientific societies | 5 | 111 | 479 | 567 |
| 794 | Comparative Education | 10 | 110 | 53 | 99 |
| 794 | Wireless Sensor Networks | 11 | 110 | 10 | 11 |
| 794 | Soil fertility | 4 | 110 | 235 | 371 |
| 797 | Pharmaceutical Technology | 4 | 109 | 1268 | 1312 |
| 797 | Religion | 25 | 109 | 201 | 312 |
| 797 | catalytic activity | 4 | 109 | 565 | 654 |
| 800 | Traffic Engineering | 1 | 108 | 716 | 416 |
| 800 | Sports Medicine | 3 | 108 | 2200 | 1598 |
| 800 | Parasites | 6 | 108 | 1076 | 1184 |
| 803 | Radiology | 8 | 107 | 744 | 815 |
| 803 | Geometry | 14 | 107 | 539 | 574 |
| 803 | civil war | 2 | 107 | 45 | 9 |
| 806 | Software Maintenance | 7 | 106 | 56 | 89 |
| 806 | Superconductors | 5 | 106 | 689 | 553 |
| 806 | Porous materials | 7 | 106 | 421 | 497 |
| 809 | Structural Engineering | 6 | 105 | 1129 | 1232 |
| 809 | Business Ethics | 4 | 105 | 851 | 1243 |
| 811 | food technology | 1 | 104 | 3149 | 2188 |
| 811 | Decision Support Systems | 3 | 104 | 128 | 97 |
| 811 | Freezing | 5 | 104 | 191 | 151 |
| 814 | drugs | 6 | 103 | 1291 | 1525 |
| 815 | Chemotherapy | 4 | 102 | 855 | 908 |
| 815 | biological invasions | 3 | 102 | 590 | 567 |
| 815 | Metrology | 6 | 102 | 35 | 18 |
| 818 | Experimental Psychology | 9 | 101 | 323 | 518 |
| 818 | Internet of Things | 6 | 101 | 751 | 1057 |
| 818 | Combinatorial chemistry | 3 | 101 | 649 | 763 |
| 818 | sexual behavior | 8 | 101 | 354 | 611 |
| 822 | Ecological Genetics | 3 | 100 | 625 | 415 |
| 822 | Metallography | 6 | 100 | 532 | 711 |
| 824 | Health Information Management | 3 | 99 | 316 | 667 |
| 824 | disease vectors | 3 | 99 | 883 | 838 |
| 824 | telemarketing | 2 | 99 | 134 | 120 |
| 824 | Food preferences | 2 | 99 | 480 | 398 |
| 828 | Enteral nutrition | 2 | 98 | 838 | 785 |
| 828 | Parenteral nutrition | 2 | 98 | 956 | 875 |
| 828 | Eurasia | 9 | 98 | 55 | 136 |
| 831 | Soil Mechanics | 5 | 97 | 805 | 918 |
| 831 | Theology | 20 | 97 | 170 | 103 |
| 831 | Sports | 3 | 97 | 1931 | 1427 |
| 831 | Mechanics | 9 | 97 | 718 | 909 |
| 831 | Luminescence | 11 | 97 | 645 | 1056 |
| 831 | Prisons | 8 | 97 | 131 | 169 |
| 837 | Remote Sensing | 10 | 96 | 741 | 966 |
| 837 | Critical Discourse Analysis | 4 | 96 | 23 | 33 |
| 837 | Political Parties | 2 | 96 | 242 | 192 |
| 837 | Energy Harvesting | 1 | 96 | 650 | 631 |
| 837 | Exercise | 3 | 96 | 1451 | 1105 |
| 842 | Community Psychology | 2 | 95 | 660 | 501 |
| 842 | Photogrammetry | 9 | 95 | 384 | 268 |
| 842 | Gerontology | 25 | 95 | 527 | 1254 |
| 845 | Computer Architecture | 9 | 94 | 243 | 338 |
| 845 | industrial hygiene | 10 | 94 | 401 | 547 |
| 845 | technology transfer | 6 | 94 | 110 | 275 |
| 845 | Synchrotron Radiation | 6 | 94 | 212 | 259 |
| 845 | Mental Health Counseling | 12 | 94 | 31 | 57 |
| 845 | Human biology | 6 | 94 | 407 | 474 |
| 851 | Urban Policy | 4 | 93 | 718 | 846 |
| 851 | Wireless Communication | 4 | 93 | 359 | 253 |
| 853 | Feminism | 8 | 92 | 318 | 402 |
| 853 | Randomized Controlled Trials | 6 | 92 | 622 | 633 |
| 855 | Geriatric Psychiatry | 2 | 91 | 1030 | 839 |
| 855 | civil rights | 3 | 91 | 384 | 256 |
| 855 | Mental Health Services | 5 | 91 | 778 | 952 |
| 855 | Calorimetry | 5 | 91 | 951 | 976 |
| 855 | Thermal analysis | 5 | 91 | 951 | 976 |
| 860 | radiation monitoring | 9 | 90 | 195 | 243 |
| 860 | Critical theory | 11 | 90 | 33 | 94 |
| 860 | Textile industry | 2 | 90 | 604 | 286 |
| 863 | Surface-Active Agents | 2 | 89 | 1345 | 1289 |
| 863 | Invertebrates | 3 | 89 | 575 | 505 |
| 865 | Anthropology | 19 | 88 | 540 | 1120 |
| 865 | Computer Engineering | 7 | 88 | 525 | 794 |
| 865 | Biosensors | 3 | 88 | 1202 | 1578 |
| 865 | Crystallization | 14 | 88 | 143 | 302 |
| 865 | Social perception | 1 | 88 | 241 | 166 |
| 865 | Maternal health services | 2 | 88 | 418 | 323 |
| 871 | Language Acquisition | 4 | 87 | 259 | 250 |
| 871 | Intelligence | 7 | 87 | 139 | 275 |
| 871 | Animal genetics | 9 | 87 | 283 | 527 |
| 874 | locomotion | 1 | 86 | 967 | 603 |
| 874 | posture | 1 | 86 | 967 | 603 |
| 874 | protein | 2 | 86 | 1251 | 1002 |
| 874 | Hearing | 4 | 86 | 546 | 550 |
| 874 | gait | 1 | 86 | 967 | 603 |
| 874 | walking | 1 | 86 | 967 | 603 |
| 880 | International Education | 10 | 85 | 50 | 219 |
| 880 | Landslides | 5 | 85 | 141 | 336 |
| 882 | Asthma | 4 | 84 | 512 | 494 |
| 882 | Molecular recognition | 3 | 84 | 180 | 182 |
| 882 | Online journalism | 4 | 84 | 72 | 152 |
| 882 | drug toxicity | 1 | 84 | 921 | 516 |
| 886 | infrared radiation | 4 | 83 | 506 | 411 |
| 886 | Synaptic Transmission | 4 | 83 | 367 | 485 |
| 888 | mycoses | 2 | 82 | 831 | 871 |
| 888 | Semigroups | 4 | 82 | 230 | 89 |
| 890 | Thermodynamics | 8 | 81 | 725 | 853 |
| 890 | Organizational Behavior | 3 | 81 | 574 | 719 |
| 890 | Political Participation | 4 | 81 | 282 | 319 |
| 890 | Antibodies | 2 | 81 | 597 | 502 |
| 890 | Antigens | 2 | 81 | 768 | 636 |
| 890 | Vaccines | 3 | 81 | 1394 | 1350 |
| 896 | Plant Morphology | 3 | 80 | 599 | 537 |
| 896 | Qualitative Research | 6 | 80 | 328 | 471 |
| 896 | Plant breeding | 5 | 80 | 529 | 699 |
| 896 | System design | 3 | 80 | 194 | 192 |
| 896 | Mites | 5 | 80 | 282 | 290 |
| 901 | Ergonomics | 5 | 79 | 684 | 791 |
| 901 | Psychoneuroimmunology | 1 | 79 | 854 | 752 |
| 901 | Neuroimmunology | 1 | 79 | 952 | 811 |
| 901 | feeding behavior | 5 | 79 | 515 | 813 |
| 901 | Bacterial infections | 1 | 79 | 1136 | 904 |
| 901 | Host-parasite interactions | 1 | 79 | 1507 | 1294 |
| 901 | Immunity | 1 | 79 | 1881 | 1667 |
| 901 | Appetite | 5 | 79 | 454 | 740 |
| 909 | Plant Taxonomy | 3 | 78 | 375 | 363 |
| 909 | Social welfare | 2 | 78 | 700 | 463 |
| 909 | Action Research | 2 | 78 | 322 | 161 |
| 909 | Outdoor Education | 1 | 78 | 169 | 66 |
| 909 | Adventure education | 1 | 78 | 120 | 44 |
| 909 | labor | 21 | 78 | 33 | 260 |
| 909 | behavior modification | 2 | 78 | 446 | 479 |
| 909 | administrative agencies | 2 | 78 | 366 | 257 |
| 909 | drug evaluation | 3 | 78 | 1157 | 1202 |
| 918 | Logistics | 2 | 77 | 727 | 709 |
| 918 | psychophysics | 7 | 77 | 214 | 294 |
| 918 | Family | 6 | 77 | 652 | 847 |
| 918 | families | 6 | 77 | 579 | 682 |
| 922 | Political Sociology | 3 | 76 | 461 | 413 |
| 922 | Psychosomatic Medicine | 2 | 76 | 801 | 775 |
| 922 | Insects | 5 | 76 | 1078 | 1165 |
| 922 | Radiation dosimetry | 5 | 76 | 274 | 224 |
| 922 | international cooperation | 6 | 76 | 365 | 602 |
| 927 | Ethnology | 17 | 75 | 479 | 1028 |
| 928 | Applied Linguistics | 8 | 73 | 309 | 484 |
| 928 | Origin of life | 4 | 73 | 96 | 139 |
| 928 | Organelle biogenesis | 4 | 73 | 161 | 224 |
| 931 | Geotechnical Engineering | 2 | 72 | 564 | 428 |
| 931 | Audiology | 2 | 72 | 804 | 685 |
| 931 | Bilingualism | 1 | 72 | 307 | 164 |
| 931 | Smoking | 8 | 72 | 387 | 800 |
| 931 | Informatics | 9 | 72 | 415 | 848 |
| 931 | Emotions | 4 | 72 | 519 | 726 |
| 937 | Industrial Organization | 17 | 71 | 49 | 341 |
| 937 | labor policy | 17 | 71 | 2 | 9 |
| 937 | nation-building | 4 | 71 | 20 | 21 |
| 937 | Minerals | 6 | 71 | 476 | 847 |
| 941 | Obstetrics | 7 | 70 | 1258 | 1652 |
| 941 | risk factors | 3 | 70 | 580 | 635 |
| 941 | Entropy | 7 | 70 | 696 | 983 |
| 944 | Virtual reality | 3 | 69 | 398 | 433 |
| 944 | Chemical structure | 13 | 69 | 117 | 335 |
| 944 | Maps | 4 | 69 | 113 | 128 |
| 947 | emergency management | 2 | 68 | 817 | 739 |
| 947 | Bioethics | 7 | 68 | 565 | 743 |
| 947 | Eating Disorders | 1 | 68 | 1171 | 822 |
| 947 | Feeding and Eating Disorders | 1 | 68 | 1124 | 796 |
| 947 | International security | 4 | 68 | 165 | 306 |
| 947 | Recycling | 3 | 68 | 598 | 1100 |
| 953 | Multimedia Systems | 5 | 67 | 1420 | 1597 |
| 953 | Algal blooms | 4 | 67 | 209 | 392 |
| 953 | Cyanobacteria | 4 | 67 | 209 | 392 |
| 953 | microalgae | 4 | 67 | 209 | 392 |
| 957 | Language Disorders | 4 | 66 | 700 | 776 |
| 957 | Thrombosis | 1 | 66 | 1148 | 905 |
| 957 | terrorism | 2 | 66 | 359 | 223 |
| 957 | vascular diseases | 1 | 66 | 876 | 765 |
| 957 | technical education | 3 | 66 | 677 | 666 |
| 957 | Animal | 2 | 66 | 218 | 159 |
| 963 | Genetic Toxicology | 2 | 64 | 527 | 622 |
| 964 | Musicology | 2 | 63 | 283 | 146 |
| 964 | Music | 2 | 63 | 1077 | 670 |
| 964 | Sleep Disorders | 4 | 63 | 1100 | 1266 |
| 964 | Sleep | 4 | 63 | 1110 | 1285 |
| 968 | Integrated Circuits | 5 | 62 | 617 | 476 |
| 968 | Genetic variation | 3 | 62 | 108 | 132 |
| 968 | civilization | 12 | 62 | 481 | 384 |
| 968 | Elderly | 22 | 62 | 360 | 734 |
| 968 | Finite Element Method | 1 | 62 | 573 | 344 |
| 968 | Volcanoes | 4 | 62 | 239 | 366 |
| 968 | Library Science | 1 | 62 | 1585 | 649 |
| 968 | Therapeutics | 4 | 62 | 1159 | 1500 |
| 976 | Food Policy | 1 | 61 | 537 | 451 |
| 976 | Feminist Economics | 3 | 61 | 60 | 138 |
| 976 | Health | 7 | 61 | 1261 | 1914 |
| 976 | Chemical kinetics | 8 | 61 | 380 | 560 |
| 976 | agricultural policy | 1 | 61 | 414 | 391 |
| 981 | Surveying | 1 | 60 | 264 | 74 |
| 981 | Social Security | 7 | 60 | 18 | 28 |
| 981 | Welding | 4 | 60 | 187 | 139 |
| 981 | reasoning | 6 | 60 | 213 | 432 |
| 981 | Fuzzy systems | 6 | 60 | 1193 | 1452 |
| 981 | Radiation effects | 4 | 60 | 515 | 897 |
| 987 | Plant Genetics | 3 | 59 | 624 | 894 |
| 987 | International Law | 19 | 59 | 88 | 131 |
| 987 | Alternative Medicine | 5 | 59 | 1067 | 1718 |
| 987 | complementary therapies | 5 | 59 | 1242 | 1806 |
| 987 | Calculus of Variations | 2 | 59 | 668 | 471 |
| 987 | Identity | 1 | 59 | 292 | 206 |
| 987 | Adaptive control systems | 2 | 59 | 754 | 553 |
| 987 | Iron | 2 | 59 | 364 | 280 |
| 987 | Self | 1 | 59 | 388 | 260 |
| 987 | Spine | 1 | 59 | 812 | 719 |
| 997 | Industrial Ecology | 4 | 58 | 131 | 287 |
| 997 | civil society | 9 | 58 | 12 | 40 |
| 997 | touch | 1 | 58 | 211 | 164 |
| 997 | Communism | 7 | 58 | 36 | 125 |