| 1 | Nuclear Physics | 735 | 32.8K | 335 | 270 |
| 2 | Physics | 503 | 24.1K | 872 | 1159 |
| 3 | Chemistry | 472 | 18.9K | 888 | 957 |
| 4 | Materials | 266 | 8.2K | 691 | 788 |
| 5 | Mathematical Physics | 45 | 8.1K | 855 | 162 |
| 6 | Astrophysics | 88 | 7.8K | 951 | 778 |
| 7 | Spectrum analysis | 90 | 7.8K | 945 | 617 |
| 8 | Nanotechnology | 125 | 7.6K | 862 | 698 |
| 9 | Biotechnology | 54 | 6.6K | 1821 | 862 |
| 10 | Biology | 58 | 6.4K | 3399 | 2497 |
| 11 | Bioengineering | 64 | 5.4K | 961 | 664 |
| 12 | Molecular Biology | 60 | 5.0K | 2738 | 1914 |
| 13 | Quantum Gravity | 144 | 4.6K | 408 | 446 |
| 14 | Science | 71 | 4.5K | 3269 | 3172 |
| 15 | Microelectronics | 31 | 3.9K | 576 | 276 |
| 16 | Materials Science | 111 | 3.8K | 859 | 886 |
| 17 | miniaturization | 23 | 3.8K | 669 | 326 |
| 18 | Natural history | 9 | 3.2K | 3279 | 2363 |
| 19 | Statistical physics | 146 | 3.1K | 591 | 668 |
| 20 | Small Business | 24 | 3.0K | 146 | 76 |
| 21 | Entrepreneurship | 24 | 2.9K | 203 | 134 |
| 22 | Chemical Engineering | 48 | 2.5K | 1478 | 1148 |
| 23 | Engineering Mathematics | 84 | 2.5K | 242 | 134 |
| 24 | Mathematics | 388 | 2.5K | 490 | 851 |
| 25 | Computer Graphics | 42 | 2.4K | 320 | 183 |
| 26 | Economics | 127 | 2.3K | 650 | 725 |
| 26 | Fracture mechanics | 56 | 2.3K | 207 | 128 |
| 28 | Biocompatible Materials | 53 | 2.3K | 1082 | 1151 |
| 29 | Biomedical Engineering | 43 | 2.3K | 1475 | 976 |
| 30 | Biochemistry | 67 | 2.2K | 3089 | 3029 |
| 31 | Composite Materials | 55 | 2.2K | 580 | 609 |
| 32 | nanoscience | 37 | 2.2K | 883 | 777 |
| 33 | Nanostructured Materials | 58 | 2.0K | 822 | 810 |
| 34 | Polymers | 110 | 1.9K | 897 | 1172 |
| 35 | Analytical Chemistry | 60 | 1.7K | 1232 | 1258 |
| 36 | Solid State Chemistry | 53 | 1.6K | 544 | 400 |
| 37 | Technology | 35 | 1.6K | 1339 | 836 |
| 38 | fuel cells | 19 | 1.5K | 504 | 371 |
| 39 | System analysis | 36 | 1.5K | 604 | 340 |
| 40 | Catalysis | 36 | 1.5K | 1452 | 1370 |
| 41 | Colloids | 60 | 1.5K | 961 | 1228 |
| 42 | actuators | 15 | 1.4K | 1085 | 499 |
| 42 | transducers | 15 | 1.4K | 1085 | 499 |
| 44 | Metals | 37 | 1.4K | 654 | 540 |
| 45 | Surface Chemistry | 60 | 1.4K | 958 | 1191 |
| 46 | Engineering | 77 | 1.4K | 665 | 650 |
| 47 | Biochemical Engineering | 9 | 1.4K | 2346 | 1524 |
| 48 | Optical materials | 24 | 1.3K | 1091 | 882 |
| 49 | polymerization | 88 | 1.3K | 866 | 1206 |
| 50 | management | 42 | 1.3K | 917 | 1034 |
| 51 | Optics | 62 | 1.2K | 1328 | 1169 |
| 52 | Metabolism | 4 | 1.2K | 3201 | 1301 |
| 53 | Carbon | 30 | 1.1K | 310 | 472 |
| 54 | Building Materials | 11 | 1.0K | 957 | 562 |
| 55 | computer networks | 49 | 969 | 370 | 467 |
| 56 | Computer Science | 52 | 964 | 254 | 235 |
| 57 | Organic Chemistry | 49 | 959 | 970 | 1191 |
| 58 | Solid State Physics | 54 | 941 | 1309 | 1482 |
| 59 | Nanoparticles | 19 | 906 | 739 | 580 |
| 60 | Human-Computer Interaction | 60 | 905 | 90 | 240 |
| 61 | Cement | 16 | 895 | 203 | 235 |
| 62 | concrete | 19 | 883 | 324 | 361 |
| 63 | Mechanical Engineering | 32 | 855 | 760 | 464 |
| 64 | Computer Vision | 13 | 829 | 533 | 423 |
| 65 | Image Processing | 11 | 827 | 1167 | 625 |
| 66 | vibration | 20 | 810 | 413 | 278 |
| 67 | Metallurgy | 30 | 801 | 844 | 794 |
| 68 | Operations Research | 66 | 797 | 346 | 716 |
| 69 | Structural optimization | 18 | 796 | 84 | 75 |
| 70 | Electrochemistry | 39 | 779 | 1409 | 1495 |
| 71 | Psychology | 50 | 760 | 1340 | 1959 |
| 72 | Geophysics | 29 | 750 | 1601 | 1689 |
| 72 | Insects | 12 | 750 | 841 | 385 |
| 74 | Nonlinear Dynamics | 22 | 745 | 993 | 850 |
| 75 | Microbiology | 10 | 736 | 5056 | 3916 |
| 76 | Cosmology | 33 | 734 | 410 | 331 |
| 77 | Organometallic chemistry | 20 | 724 | 737 | 373 |
| 78 | Psychiatry | 27 | 713 | 2003 | 2276 |
| 79 | human behavior | 20 | 704 | 1009 | 1350 |
| 80 | Environmental Engineering | 8 | 701 | 3002 | 1756 |
| 81 | Oxidation | 17 | 696 | 39 | 33 |
| 82 | Manufacturing Processes | 78 | 692 | 283 | 777 |
| 83 | Europe | 61 | 685 | 673 | 1072 |
| 84 | Bioinorganic chemistry | 18 | 683 | 597 | 435 |
| 85 | Environmental Policy | 5 | 680 | 3133 | 1662 |
| 86 | Behavior | 19 | 679 | 1539 | 1739 |
| 87 | Structural dynamics | 16 | 672 | 429 | 383 |
| 88 | Medicine | 36 | 665 | 4795 | 6466 |
| 89 | Production Engineering | 78 | 664 | 198 | 462 |
| 90 | Structural Engineering | 17 | 663 | 740 | 485 |
| 91 | nuclear astrophysics | 20 | 660 | 114 | 158 |
| 92 | Artificial Intelligence | 33 | 659 | 1255 | 1370 |
| 92 | Computer-Aided Design | 19 | 659 | 358 | 294 |
| 94 | Botany | 10 | 609 | 2818 | 2145 |
| 95 | Physical organic chemistry | 27 | 602 | 364 | 406 |
| 96 | Business | 18 | 588 | 925 | 1022 |
| 97 | Public Policy | 10 | 583 | 1062 | 649 |
| 98 | Mechanics | 20 | 582 | 423 | 305 |
| 99 | Systems Engineering | 14 | 578 | 991 | 547 |
| 100 | Photochemistry | 27 | 577 | 462 | 640 |
| 101 | Ocean Engineering | 12 | 576 | 898 | 625 |
| 102 | Statistics | 47 | 552 | 731 | 1021 |
| 103 | Earthquake Engineering | 10 | 548 | 763 | 524 |
| 104 | Research | 49 | 545 | 3249 | 5497 |
| 105 | Bioorganic chemistry | 18 | 542 | 1442 | 1499 |
| 106 | Sociology | 52 | 536 | 631 | 1199 |
| 107 | Dynamics | 26 | 528 | 469 | 380 |
| 108 | Strategic planning | 13 | 527 | 248 | 218 |
| 109 | Political Science | 44 | 521 | 450 | 539 |
| 110 | Oceanography | 11 | 516 | 1236 | 986 |
| 111 | Social Psychology | 23 | 499 | 792 | 1055 |
| 112 | Crisis management | 10 | 498 | 22 | 14 |
| 113 | Quantum theory | 25 | 485 | 220 | 281 |
| 114 | United States | 19 | 481 | 2626 | 2442 |
| 115 | Adsorption | 7 | 480 | 90 | 24 |
| 115 | Ultrasonics | 9 | 480 | 610 | 458 |
| 117 | Ultrasonic Imaging | 8 | 472 | 285 | 123 |
| 117 | Ultrasound | 8 | 472 | 324 | 175 |
| 119 | Transportation | 15 | 463 | 773 | 727 |
| 120 | personality | 22 | 459 | 544 | 812 |
| 121 | Condensed Matter | 29 | 455 | 1626 | 1851 |
| 122 | Radiation | 28 | 453 | 683 | 862 |
| 123 | Physical Chemistry | 32 | 444 | 746 | 1269 |
| 124 | Molecules | 17 | 440 | 721 | 647 |
| 125 | Product Design | 59 | 437 | 48 | 122 |
| 126 | Magnetic Resonance Spectroscopy | 30 | 436 | 355 | 517 |
| 127 | Smart Materials | 17 | 434 | 277 | 298 |
| 128 | Entomology | 3 | 419 | 2917 | 960 |
| 129 | Energy Conversion | 5 | 404 | 1090 | 995 |
| 130 | Luminescence | 11 | 398 | 669 | 369 |
| 131 | Electronics | 20 | 397 | 1732 | 1540 |
| 132 | Geriatrics | 24 | 394 | 1287 | 1661 |
| 133 | Pollution | 17 | 392 | 3038 | 4034 |
| 134 | Astronomy | 9 | 391 | 2176 | 1974 |
| 135 | Structural design | 20 | 390 | 170 | 269 |
| 135 | Photonics | 15 | 390 | 894 | 1161 |
| 137 | Photobiology | 21 | 388 | 339 | 569 |
| 138 | emergency management | 13 | 387 | 288 | 261 |
| 138 | Bioinformatics | 10 | 387 | 1412 | 1353 |
| 140 | Aging | 11 | 386 | 2019 | 1699 |
| 141 | probabilities | 15 | 382 | 652 | 390 |
| 142 | biological evolution | 3 | 373 | 2606 | 1624 |
| 143 | Semiconductors | 13 | 370 | 1071 | 796 |
| 144 | Social Change | 4 | 368 | 945 | 610 |
| 145 | Traffic Engineering | 6 | 365 | 260 | 190 |
| 146 | Thermodynamics | 8 | 361 | 765 | 305 |
| 147 | Crystallography | 31 | 344 | 511 | 523 |
| 148 | Environmental Health | 11 | 343 | 3785 | 4063 |
| 149 | Molecular Spectroscopy | 12 | 342 | 953 | 839 |
| 150 | nuclear magnetic resonance spectroscopy | 22 | 340 | 200 | 307 |
| 151 | Diagnostic Imaging | 4 | 338 | 2323 | 1235 |
| 151 | health planning | 11 | 338 | 1223 | 920 |
| 153 | cosmic rays | 22 | 337 | 123 | 164 |
| 154 | NMR | 21 | 336 | 82 | 104 |
| 154 | magnetic resonance | 21 | 336 | 83 | 110 |
| 156 | particles | 4 | 327 | 981 | 331 |
| 157 | Raman spectroscopy | 17 | 325 | 226 | 319 |
| 157 | Learning | 9 | 325 | 864 | 793 |
| 159 | Continuum Mechanics | 5 | 313 | 101 | 43 |
| 160 | Nondestructive testing | 8 | 310 | 380 | 236 |
| 161 | Light | 9 | 308 | 642 | 980 |
| 161 | psychotherapy | 11 | 308 | 812 | 869 |
| 161 | Insect biochemistry | 8 | 308 | 265 | 272 |
| 164 | Pharmaceutical Chemistry | 11 | 301 | 2792 | 3003 |
| 165 | Environmental Chemistry | 5 | 300 | 2033 | 1717 |
| 166 | Numerical Analysis | 19 | 299 | 1025 | 1030 |
| 167 | pigments | 15 | 282 | 276 | 377 |
| 168 | Public Health | 33 | 281 | 2195 | 4437 |
| 168 | Psychophysiology | 12 | 281 | 1899 | 2346 |
| 170 | Renewable Energy Sources | 7 | 280 | 2046 | 2488 |
| 171 | Combustion | 12 | 277 | 684 | 758 |
| 172 | Linguistics | 23 | 275 | 519 | 607 |
| 172 | Feminism | 4 | 275 | 525 | 176 |
| 174 | Geometry | 34 | 274 | 277 | 339 |
| 174 | Geochemistry | 9 | 274 | 1480 | 1533 |
| 174 | Feminist Economics | 1 | 274 | 200 | 30 |
| 177 | Health Education | 4 | 270 | 2133 | 1110 |
| 177 | medical education | 4 | 270 | 2143 | 1038 |
| 179 | Neurology | 9 | 262 | 4314 | 4611 |
| 179 | Computational Biology | 9 | 262 | 2150 | 2164 |
| 181 | Scheduling | 20 | 259 | 8 | 41 |
| 181 | Synchrotron Radiation | 17 | 259 | 117 | 161 |
| 181 | Production Scheduling | 20 | 259 | 8 | 41 |
| 184 | Metallic Glasses | 6 | 258 | 327 | 247 |
| 185 | Mental illness | 4 | 257 | 2363 | 1904 |
| 186 | Educational Psychology | 8 | 252 | 940 | 864 |
| 186 | Minerals | 7 | 252 | 457 | 346 |
| 188 | Information Technology | 13 | 249 | 1261 | 1206 |
| 189 | Climatology | 5 | 247 | 1699 | 1354 |
| 189 | Social policy | 69 | 247 | 62 | 434 |
| 191 | Meteorology | 6 | 246 | 2127 | 2115 |
| 192 | Molecular evolution | 1 | 241 | 3344 | 1433 |
| 193 | Computational Chemistry | 3 | 239 | 820 | 482 |
| 194 | Microscopy | 15 | 236 | 729 | 847 |
| 195 | Education | 27 | 235 | 1457 | 1898 |
| 196 | Industrial Engineering | 15 | 233 | 859 | 1201 |
| 197 | economic policy | 55 | 232 | 423 | 1155 |
| 198 | biopolymers | 16 | 229 | 541 | 872 |
| 199 | Epigenetics | 6 | 222 | 114 | 53 |
| 199 | Epigenomics | 6 | 222 | 112 | 50 |
| 199 | mass transfer | 6 | 222 | 1362 | 1190 |
| 199 | Information Science | 6 | 222 | 2110 | 1788 |
| 199 | Exercise | 3 | 222 | 1622 | 757 |
| 204 | Biosensors | 3 | 219 | 1532 | 1351 |
| 204 | Bioelectronics | 3 | 219 | 1313 | 1232 |
| 206 | Ergonomics | 15 | 212 | 473 | 569 |
| 206 | marketing | 4 | 212 | 1849 | 1351 |
| 206 | libraries | 2 | 212 | 1179 | 228 |
| 206 | Fluorescence | 8 | 212 | 198 | 119 |
| 210 | Planets | 4 | 210 | 1635 | 1560 |
| 211 | Actuarial Science | 2 | 207 | 359 | 123 |
| 211 | insurance | 2 | 207 | 528 | 164 |
| 213 | Navigation | 8 | 205 | 228 | 168 |
| 214 | Economic History | 22 | 204 | 1524 | 1910 |
| 215 | Social problems | 16 | 201 | 182 | 445 |
| 216 | Solar Energy | 7 | 196 | 1276 | 1509 |
| 217 | Radiology | 11 | 193 | 1080 | 1051 |
| 218 | Ecology | 11 | 192 | 4589 | 6467 |
| 218 | Communication | 10 | 192 | 1264 | 1200 |
| 218 | Approximation Theory | 17 | 192 | 108 | 163 |
| 221 | Mineralogy | 5 | 188 | 1258 | 1019 |
| 222 | Structural health monitoring | 5 | 187 | 144 | 133 |
| 222 | structural stability | 5 | 187 | 371 | 284 |
| 222 | Interfaces | 3 | 187 | 339 | 120 |
| 225 | Chemical analysis | 8 | 184 | 848 | 937 |
| 226 | Information Systems | 10 | 181 | 779 | 1071 |
| 227 | Inorganic Chemistry | 1 | 180 | 335 | 43 |
| 228 | Robotics | 10 | 179 | 1023 | 1183 |
| 229 | Animal Behavior | 7 | 178 | 1541 | 1957 |
| 229 | internet | 5 | 178 | 1040 | 739 |
| 231 | Public Administration | 6 | 174 | 1165 | 796 |
| 232 | Ethology | 6 | 171 | 1309 | 1701 |
| 233 | Discrete geometry | 13 | 169 | 74 | 108 |
| 234 | Epidemiology | 14 | 168 | 2370 | 3685 |
| 234 | Business Ethics | 3 | 168 | 982 | 995 |
| 236 | commerce | 18 | 166 | 534 | 1150 |
| 237 | Liquid Crystals | 10 | 165 | 564 | 368 |
| 238 | Germany | 71 | 164 | 38 | 165 |
| 239 | philology | 130 | 163 | 19 | 28 |
| 240 | Energy Storage | 5 | 161 | 1124 | 1063 |
| 241 | Protozoa | 1 | 158 | 915 | 367 |
| 242 | Child psychology | 4 | 157 | 1578 | 1564 |
| 243 | Water pollution | 5 | 155 | 2550 | 2819 |
| 243 | natural disasters | 5 | 155 | 1129 | 1132 |
| 245 | Biophysics | 9 | 151 | 4715 | 5527 |
| 246 | Decision making | 12 | 149 | 725 | 1201 |
| 246 | World Wide Web | 3 | 149 | 466 | 168 |
| 248 | Energy Policy | 5 | 146 | 2409 | 2948 |
| 248 | Plant physiology | 6 | 146 | 1782 | 2251 |
| 248 | Vocational guidance | 2 | 146 | 1192 | 767 |
| 251 | Electrochemical Analysis | 5 | 143 | 1401 | 1306 |
| 252 | Social Sciences | 37 | 141 | 965 | 2356 |
| 252 | Software Engineering | 6 | 141 | 826 | 632 |
| 252 | Biomolecules | 11 | 141 | 153 | 540 |
| 255 | Mobile Computing | 9 | 140 | 615 | 661 |
| 256 | Sales management | 2 | 139 | 275 | 339 |
| 256 | selling | 2 | 139 | 275 | 339 |
| 258 | Recycling | 2 | 138 | 880 | 918 |
| 259 | environmental protection | 5 | 136 | 3466 | 3732 |
| 260 | Nanostructures | 8 | 133 | 1606 | 2267 |
| 261 | Genetic algorithms | 2 | 132 | 285 | 211 |
| 261 | Evolutionary Computation | 2 | 132 | 553 | 352 |
| 261 | Evolution | 2 | 132 | 2883 | 2134 |
| 264 | Flexible manufacturing systems | 4 | 130 | 301 | 304 |
| 264 | technology transfer | 6 | 130 | 129 | 250 |
| 266 | Fluid Mechanics | 8 | 129 | 1272 | 1393 |
| 267 | Materials Engineering | 6 | 128 | 500 | 363 |
| 267 | Water | 5 | 128 | 2341 | 3001 |
| 267 | Electromagnetic waves | 6 | 128 | 106 | 119 |
| 267 | Plastics | 10 | 128 | 1037 | 1348 |
| 271 | Natural resources | 11 | 127 | 370 | 812 |
| 272 | Project Management | 1 | 126 | 551 | 428 |
| 273 | Signal Processing | 9 | 125 | 1284 | 1562 |
| 274 | Zoology | 3 | 124 | 3185 | 2160 |
| 274 | Magnetic Materials | 6 | 124 | 1221 | 1392 |
| 274 | population geography | 10 | 124 | 128 | 302 |
| 277 | Neuropsychology | 6 | 122 | 2068 | 2477 |
| 277 | Regional Planning | 14 | 122 | 758 | 1302 |
| 277 | Mental Disorders | 9 | 122 | 2384 | 3588 |
| 280 | Waste management | 3 | 121 | 1678 | 1132 |
| 280 | Computational Complexity | 19 | 121 | 241 | 586 |
| 282 | Economic Development | 9 | 120 | 1099 | 1854 |
| 283 | Nanoelectronics | 7 | 119 | 628 | 560 |
| 284 | Nanochemistry | 9 | 118 | 642 | 990 |
| 285 | taxation | 8 | 116 | 83 | 181 |
| 286 | Discourse Analysis | 2 | 113 | 530 | 294 |
| 286 | War and Society | 1 | 113 | 428 | 270 |
| 286 | warfare | 1 | 113 | 634 | 337 |
| 286 | peace | 1 | 113 | 965 | 464 |
| 286 | international cooperation | 1 | 113 | 1332 | 616 |
| 291 | Automation | 3 | 112 | 2151 | 1676 |
| 291 | Cognitive neuroscience | 5 | 112 | 876 | 1195 |
| 293 | Water quality management | 5 | 110 | 1645 | 1686 |
| 293 | visualization | 7 | 110 | 1288 | 749 |
| 293 | Detectors | 11 | 110 | 381 | 506 |
| 293 | planning | 4 | 110 | 692 | 539 |
| 297 | Hydrology | 7 | 109 | 2041 | 2459 |
| 298 | Geology | 2 | 108 | 4092 | 2838 |
| 298 | Medical Technology | 6 | 108 | 1582 | 2033 |
| 300 | Radio wave propagation | 2 | 107 | 1179 | 556 |
| 301 | Information Theory | 11 | 106 | 638 | 1043 |
| 301 | Electrical Engineering | 29 | 106 | 1331 | 2224 |
| 301 | Public Choice | 9 | 106 | 155 | 342 |
| 301 | Group decision making | 9 | 106 | 229 | 445 |
| 301 | Semiconductor industry | 6 | 106 | 500 | 479 |
| 306 | Intelligent Control Systems | 7 | 105 | 727 | 609 |
| 306 | Earth Sciences | 7 | 105 | 2684 | 3190 |
| 308 | nuclear magnetic resonance | 10 | 104 | 730 | 1055 |
| 308 | Cardiovascular system | 1 | 104 | 3011 | 2577 |
| 310 | Anatomy | 2 | 102 | 2996 | 2318 |
| 310 | Developmental Biology | 2 | 102 | 3041 | 2854 |
| 312 | Surface-Active Agents | 1 | 101 | 2097 | 1451 |
| 312 | Surface properties | 1 | 101 | 2208 | 1570 |
| 312 | Granular materials | 3 | 101 | 651 | 583 |
| 312 | Vision | 2 | 101 | 961 | 841 |
| 316 | Neurophysiology | 6 | 100 | 2667 | 3672 |
| 316 | national security | 3 | 100 | 441 | 191 |
| 318 | Quantum Chemistry | 6 | 98 | 718 | 661 |
| 318 | energy resources | 4 | 98 | 1339 | 2129 |
| 320 | Organizational Behavior | 2 | 97 | 791 | 707 |
| 320 | Animal ecology | 3 | 97 | 1410 | 1296 |
| 320 | elasticity | 2 | 97 | 325 | 193 |
| 323 | behavioral medicine | 5 | 95 | 1236 | 1921 |
| 323 | Water Purification | 1 | 95 | 2184 | 1083 |
| 325 | Multivariate Analysis | 12 | 94 | 172 | 449 |
| 326 | Environmental monitoring | 4 | 93 | 4217 | 5000 |
| 326 | Obesity | 2 | 93 | 3093 | 2884 |
| 326 | Organometallic compounds | 4 | 93 | 1254 | 1256 |
| 326 | environmental pollution | 7 | 93 | 3745 | 5573 |
| 326 | Developing countries | 8 | 93 | 1706 | 2564 |
| 331 | Mental Health | 8 | 92 | 1186 | 1753 |
| 331 | Randomized Controlled Trials | 9 | 92 | 810 | 1149 |
| 331 | Environmental pollutants | 6 | 92 | 1982 | 2903 |
| 331 | Fuzzy systems | 4 | 92 | 1716 | 1260 |
| 335 | analysis | 1 | 91 | 594 | 414 |
| 336 | Energy Harvesting | 1 | 90 | 808 | 806 |
| 337 | terrorism | 1 | 89 | 587 | 198 |
| 337 | security measures | 1 | 89 | 133 | 36 |
| 337 | North America | 1 | 89 | 1985 | 906 |
| 340 | Soft Condensed Matter | 5 | 88 | 976 | 1266 |
| 340 | Graphene | 2 | 88 | 173 | 177 |
| 340 | Metallography | 4 | 88 | 783 | 896 |
| 340 | health services | 2 | 88 | 1760 | 1244 |
| 344 | Plant Genetics | 2 | 86 | 970 | 1088 |
| 344 | plant molecular biology | 2 | 86 | 2085 | 2289 |
| 346 | Embryology | 1 | 82 | 2887 | 2351 |
| 347 | Toxicology | 4 | 81 | 5300 | 6095 |
| 347 | pollutants | 4 | 81 | 2020 | 2662 |
| 347 | administrative agencies | 3 | 81 | 298 | 257 |
| 350 | Research Design | 6 | 80 | 1062 | 1695 |
| 350 | feeding behavior | 2 | 80 | 1157 | 1099 |
| 350 | water supply | 3 | 80 | 1114 | 1299 |
| 353 | Quantum Computing | 5 | 79 | 132 | 234 |
| 353 | Quantum electronics | 7 | 79 | 700 | 751 |
| 353 | Analytical Biochemistry | 4 | 79 | 1956 | 2247 |
| 353 | Cognitive Science | 5 | 79 | 1355 | 1945 |
| 353 | Liposomes | 5 | 79 | 430 | 694 |
| 353 | Lipid bilayers | 5 | 79 | 370 | 568 |
| 353 | System design | 4 | 79 | 243 | 275 |
| 360 | Data Mining | 4 | 78 | 1738 | 2240 |
| 360 | Quantum Communication | 3 | 78 | 209 | 296 |
| 360 | radar | 4 | 78 | 200 | 229 |
| 360 | Sonar | 4 | 78 | 180 | 202 |
| 360 | Plants | 1 | 78 | 3690 | 2651 |
| 365 | Journalism | 1 | 76 | 1036 | 384 |
| 366 | Cytology | 2 | 75 | 5979 | 5941 |
| 366 | Calorimetry | 1 | 75 | 2207 | 1135 |
| 366 | Thermal analysis | 1 | 75 | 2207 | 1135 |
| 369 | Simulation Methods | 8 | 74 | 561 | 1012 |
| 370 | Mathematics Education | 2 | 73 | 652 | 347 |
| 370 | Applied Linguistics | 8 | 73 | 315 | 486 |
| 370 | Remote Sensing | 3 | 73 | 1822 | 1322 |
| 373 | Functional Analysis | 7 | 72 | 965 | 1152 |
| 373 | Econometrics | 6 | 72 | 1108 | 1348 |
| 373 | Algebra | 12 | 72 | 915 | 1001 |
| 373 | infrared radiation | 7 | 72 | 397 | 545 |
| 373 | Heat Exchangers | 2 | 72 | 1626 | 1680 |
| 373 | Venture Capital | 3 | 72 | 297 | 581 |
| 373 | Entropy | 6 | 72 | 777 | 983 |
| 380 | Building | 1 | 70 | 1292 | 549 |
| 380 | educational planning | 2 | 70 | 594 | 502 |
| 382 | Histology | 1 | 69 | 3537 | 2737 |
| 382 | Cell Biology | 1 | 69 | 6911 | 5929 |
| 382 | Production Management | 2 | 69 | 1464 | 1649 |
| 385 | Physiology | 4 | 68 | 4734 | 5696 |
| 385 | Extreme Value Theory | 8 | 68 | 25 | 79 |
| 385 | Eating Disorders | 1 | 68 | 1688 | 1221 |
| 385 | Feeding and Eating Disorders | 1 | 68 | 1623 | 1182 |
| 385 | Medical innovations | 2 | 68 | 1678 | 2464 |
| 385 | Government policy | 2 | 68 | 242 | 261 |
| 385 | Dementia | 4 | 68 | 1613 | 1443 |
| 385 | Alzheimer's disease | 4 | 68 | 1644 | 1580 |
| 393 | Advertising | 1 | 67 | 681 | 540 |
| 394 | Welfare Economics | 2 | 66 | 612 | 563 |
| 394 | industrial hygiene | 19 | 66 | 353 | 1061 |
| 394 | curriculum evaluation | 1 | 66 | 708 | 386 |
| 397 | Multimedia Systems | 9 | 65 | 1013 | 1594 |
| 397 | mathematical concepts | 4 | 65 | 357 | 354 |
| 399 | Ophthalmology | 1 | 64 | 3259 | 2469 |
| 399 | Phonetics | 3 | 64 | 345 | 394 |
| 399 | Tourism | 5 | 64 | 1370 | 2093 |
| 399 | Development | 4 | 64 | 822 | 1279 |
| 403 | Health Policy | 9 | 63 | 1689 | 3335 |
| 403 | Sociolinguistics | 4 | 63 | 404 | 453 |
| 403 | Educational Technology | 6 | 63 | 1185 | 1749 |
| 403 | micromechanics | 3 | 63 | 669 | 792 |
| 407 | Neurochemistry | 2 | 62 | 3334 | 3489 |
| 407 | Superconductors | 5 | 62 | 601 | 676 |
| 409 | International Relations | 6 | 61 | 982 | 945 |
| 409 | Environmental Psychology | 2 | 61 | 508 | 675 |
| 409 | Forecasting | 3 | 61 | 620 | 688 |
| 409 | Food | 4 | 61 | 3414 | 4437 |
| 409 | Continental shelf | 1 | 61 | 779 | 693 |
| 414 | Cybernetics | 4 | 60 | 1332 | 1685 |
| 414 | Superconductivity | 4 | 60 | 482 | 521 |
| 414 | Finite Element Method | 2 | 60 | 420 | 352 |
| 417 | Gerontology | 9 | 59 | 1417 | 2378 |
| 417 | Cognition | 4 | 59 | 1766 | 2321 |
| 419 | Chromatography | 6 | 58 | 1400 | 2235 |
| 419 | Turbulence | 4 | 58 | 213 | 276 |
| 419 | Social work | 2 | 58 | 2209 | 1585 |
| 419 | Chromatographic analysis | 6 | 58 | 1633 | 2417 |
| 423 | Ethics | 8 | 57 | 608 | 1083 |
| 423 | Acarology | 1 | 57 | 654 | 382 |
| 423 | Mites | 1 | 57 | 895 | 464 |
| 423 | Ticks | 1 | 57 | 707 | 399 |
| 423 | Acari | 1 | 57 | 626 | 379 |
| 428 | Philosophy | 24 | 56 | 679 | 990 |
| 428 | Popular culture | 16 | 56 | 119 | 275 |
| 430 | Orthopedics | 3 | 55 | 2077 | 2325 |
| 430 | Urban Economics | 3 | 55 | 388 | 604 |
| 430 | Orthopedic Surgery | 3 | 55 | 1111 | 1324 |
| 430 | Geographic information systems | 2 | 55 | 1651 | 1250 |
| 430 | urban population | 3 | 55 | 233 | 476 |
| 430 | remote sensing technology | 2 | 55 | 54 | 61 |
| 436 | Ethnic relations | 2 | 54 | 843 | 512 |
| 436 | Ethnic Conflict | 2 | 54 | 351 | 345 |
| 436 | Adhesion | 1 | 54 | 1402 | 841 |
| 436 | Noise control | 2 | 54 | 456 | 16 |
| 436 | forced migration | 2 | 54 | 351 | 345 |
| 436 | organization | 2 | 54 | 1082 | 1152 |
| 436 | adhesives | 1 | 54 | 1485 | 849 |
| 436 | race relations | 2 | 54 | 786 | 640 |
| 444 | Psychoneuroimmunology | 2 | 52 | 1064 | 1420 |
| 444 | economic forecasting | 2 | 52 | 508 | 549 |
| 444 | energy conservation | 5 | 52 | 1769 | 3241 |
| 444 | Neuroimmunology | 2 | 52 | 1164 | 1551 |
| 444 | Measurement | 2 | 52 | 1835 | 1692 |
| 449 | Systems Biology | 3 | 51 | 2115 | 2655 |
| 449 | Microprocessors | 8 | 51 | 293 | 631 |
| 449 | International Finance | 6 | 51 | 1279 | 2006 |
| 449 | international trade | 4 | 51 | 684 | 885 |
| 449 | Agriculture | 6 | 51 | 2043 | 3257 |
| 454 | Pharmacology | 2 | 50 | 7617 | 7717 |
| 454 | Critical Discourse Analysis | 1 | 50 | 117 | 73 |
| 454 | Anxiety Disorders | 3 | 50 | 634 | 1199 |
| 454 | Anxiety | 3 | 50 | 631 | 1190 |
| 454 | Sound | 3 | 50 | 881 | 727 |
| 454 | antibiotics | 2 | 50 | 620 | 656 |
| 460 | Health Services Administration | 3 | 49 | 1450 | 1812 |
| 460 | Number Theory | 11 | 49 | 435 | 613 |
| 460 | Substance Abuse | 2 | 49 | 2163 | 2175 |
| 460 | X-ray crystallography | 1 | 49 | 1120 | 743 |
| 464 | exobiology | 3 | 48 | 389 | 672 |
| 465 | Information Retrieval | 3 | 47 | 525 | 739 |
| 465 | labor | 17 | 47 | 50 | 404 |
| 465 | Adolescent | 3 | 47 | 2845 | 3137 |
| 465 | Telecommunication | 13 | 47 | 1175 | 2518 |
| 469 | Nutrition | 1 | 46 | 7877 | 6701 |
| 469 | Neurobiology | 3 | 46 | 2247 | 3198 |
| 469 | Food Microbiology | 1 | 46 | 2483 | 2511 |
| 469 | food technology | 1 | 46 | 4516 | 3968 |
| 469 | Soil biology | 2 | 46 | 1271 | 1700 |
| 469 | plasticity | 1 | 46 | 617 | 715 |
| 475 | Soil Mechanics | 3 | 45 | 1289 | 1556 |
| 475 | Rock Mechanics | 3 | 45 | 1017 | 1292 |
| 475 | Engineering Geology | 3 | 45 | 1618 | 2045 |
| 475 | Work | 15 | 45 | 85 | 455 |
| 479 | Radiologic Technology | 1 | 44 | 407 | 175 |
| 479 | Interventional Radiology | 1 | 44 | 407 | 175 |
| 479 | Psychometrics | 3 | 44 | 493 | 646 |
| 479 | Interventional Radiography | 1 | 44 | 407 | 175 |
| 479 | Endoscopic Surgery | 1 | 44 | 407 | 175 |
| 479 | innovation | 2 | 44 | 862 | 1129 |
| 479 | Memory | 5 | 44 | 1988 | 3373 |
| 486 | Hydraulic Engineering | 3 | 43 | 1132 | 1351 |
| 486 | Thermochemistry | 1 | 43 | 941 | 730 |
| 486 | Technological Innovations | 5 | 43 | 846 | 1611 |
| 486 | Asia | 4 | 43 | 3101 | 3498 |
| 490 | Genetic engineering | 2 | 42 | 3296 | 3879 |
| 490 | Computational Fluid Dynamics | 4 | 42 | 634 | 990 |
| 490 | Qualitative Research | 4 | 42 | 454 | 711 |
| 490 | Environmental risk assessment | 1 | 42 | 996 | 708 |
| 494 | Graphic Novels | 1 | 41 | 86 | 12 |
| 494 | Organizational Sociology | 1 | 41 | 669 | 509 |
| 494 | Medical Physics | 1 | 41 | 3095 | 2436 |
| 494 | Lightweight concrete | 2 | 41 | 557 | 983 |
| 494 | nucleic acids | 1 | 41 | 3212 | 3182 |
| 494 | energy development | 3 | 41 | 989 | 1640 |
| 500 | Geriatric Psychiatry | 5 | 40 | 1037 | 2056 |
| 500 | Stochastic Processes | 5 | 40 | 790 | 1195 |
| 500 | Visual Perception | 3 | 40 | 2363 | 3157 |
| 503 | Developmental Psychology | 2 | 39 | 1449 | 1746 |
| 503 | Demography | 1 | 39 | 1487 | 1224 |
| 503 | Fluid Dynamics | 1 | 39 | 2163 | 1700 |
| 503 | Atomic spectroscopy | 7 | 39 | 890 | 1668 |
| 503 | mathematical analysis | 6 | 39 | 2124 | 2417 |
| 508 | Rural Development | 4 | 38 | 546 | 900 |
| 508 | Child | 1 | 38 | 4980 | 3906 |
| 508 | Wireless Communication Systems | 7 | 38 | 1581 | 2395 |
| 508 | Neural circuitry | 3 | 38 | 2268 | 3133 |
| 508 | East Asia | 1 | 38 | 1368 | 734 |
| 508 | finance | 11 | 38 | 1385 | 2787 |
| 508 | genome | 1 | 38 | 3273 | 3348 |
| 515 | Systems Theory | 2 | 37 | 970 | 665 |
| 515 | Coastal Engineering | 2 | 37 | 204 | 175 |
| 515 | Environmental Toxicology | 1 | 37 | 4532 | 4603 |
| 515 | Electromagnetism | 2 | 37 | 1101 | 977 |
| 515 | Language Policy | 1 | 37 | 234 | 208 |
| 515 | Medical Ethics | 4 | 37 | 1213 | 1666 |
| 515 | Industrial Policy | 5 | 37 | 388 | 820 |
| 515 | Infertility | 1 | 37 | 2087 | 2004 |
| 515 | environmental exposure | 1 | 37 | 3904 | 3610 |
| 515 | Human Resources | 2 | 37 | 614 | 968 |
| 515 | values | 3 | 37 | 251 | 145 |
| 515 | violence | 2 | 37 | 1393 | 1628 |
| 515 | Molecular structure | 6 | 37 | 2196 | 3686 |
| 515 | fertility | 1 | 37 | 2198 | 2121 |
| 529 | Ceramic materials | 3 | 36 | 1557 | 2078 |
| 530 | Financial Engineering | 1 | 35 | 534 | 414 |
| 530 | Corporate governance | 7 | 35 | 304 | 1064 |
| 530 | Nonprofit organizations | 3 | 35 | 371 | 616 |
| 530 | city planning | 9 | 35 | 993 | 2403 |
| 530 | Culture | 12 | 35 | 507 | 1259 |
| 535 | Software Maintenance | 1 | 34 | 446 | 275 |
| 535 | Green Technology | 1 | 34 | 1071 | 784 |
| 535 | data collection | 2 | 34 | 1801 | 2329 |
| 535 | Alloys | 9 | 34 | 107 | 276 |
| 535 | Vietnam | 2 | 34 | 248 | 169 |
| 540 | Soil Science | 1 | 33 | 3275 | 3041 |
| 540 | Career development | 2 | 33 | 581 | 624 |
| 542 | Criminal psychology | 1 | 32 | 1403 | 1173 |
| 542 | Underwater acoustics | 1 | 32 | 182 | 104 |
| 542 | soil microbiology | 1 | 32 | 2781 | 3253 |
| 542 | Birds | 4 | 32 | 1291 | 1657 |
| 542 | world | 3 | 32 | 862 | 1754 |
| 547 | Anthropology | 4 | 31 | 1753 | 2297 |
| 547 | Endocrinology | 2 | 31 | 4594 | 5636 |
| 547 | Nuclear Energy | 1 | 31 | 2250 | 1469 |
| 547 | Health Services Research | 2 | 31 | 2811 | 3259 |
| 547 | Nuclear Chemistry | 1 | 31 | 2131 | 1518 |
| 547 | Radiochemistry | 1 | 31 | 2051 | 1372 |
| 547 | Economic Integration | 7 | 31 | 59 | 98 |
| 547 | Mental Health Services | 4 | 31 | 1420 | 2385 |
| 547 | Television | 2 | 31 | 148 | 47 |
| 547 | Personality Assessment | 2 | 31 | 789 | 1126 |
| 547 | Cellulose | 2 | 31 | 902 | 1328 |
| 547 | optical devices | 1 | 31 | 998 | 824 |
| 559 | Political Geography | 2 | 30 | 395 | 494 |
| 559 | Human Geography | 2 | 30 | 1558 | 1633 |
| 559 | Adult Education | 2 | 30 | 868 | 765 |
| 559 | sanitation | 2 | 30 | 2265 | 3514 |
| 559 | starch | 1 | 30 | 788 | 673 |
| 564 | Internet of Things | 2 | 29 | 938 | 1083 |
| 564 | diffusion | 3 | 29 | 405 | 194 |
| 564 | Fixed Point Theory | 5 | 29 | 210 | 319 |
| 564 | Fractals | 1 | 29 | 2280 | 1930 |
| 564 | space environment | 1 | 29 | 465 | 465 |
| 564 | Economic Assistance | 2 | 29 | 1056 | 1552 |
| 570 | Highway Engineering | 1 | 28 | 788 | 683 |
| 570 | community development | 2 | 28 | 850 | 967 |
| 570 | Ornithology | 3 | 28 | 1190 | 1468 |
| 570 | Library Science | 1 | 28 | 2703 | 1417 |
| 570 | Australia | 6 | 28 | 1665 | 3238 |
| 570 | Investments | 1 | 28 | 1268 | 968 |
| 576 | Industrial Organization | 5 | 27 | 232 | 619 |
| 576 | Social Movements | 11 | 27 | 28 | 225 |
| 576 | Genomics | 1 | 27 | 6106 | 6314 |
| 576 | Aerosols | 1 | 27 | 1179 | 1088 |
| 576 | Chemical industry | 17 | 27 | 511 | 2139 |
| 576 | Post-traumatic stress disorder | 4 | 27 | 761 | 1601 |
| 576 | lasers | 9 | 27 | 1267 | 2689 |
| 576 | aerosol | 1 | 27 | 824 | 772 |
| 584 | Molecular Pharmacology | 1 | 26 | 1591 | 1941 |
| 584 | Geodesy | 3 | 26 | 907 | 1404 |
| 584 | Zeolites | 1 | 26 | 1657 | 1913 |
| 584 | Ethnology | 7 | 26 | 1135 | 2255 |
| 584 | rehabilitation | 4 | 26 | 2478 | 4183 |
| 589 | Marine Biology | 1 | 25 | 4373 | 4419 |
| 589 | Environmental Management | 1 | 25 | 5190 | 5751 |
| 589 | Marine Pollution | 1 | 25 | 2272 | 2571 |
| 589 | Cell differentiation | 1 | 25 | 3181 | 3799 |
| 589 | Genetic regulation | 1 | 25 | 2399 | 2676 |
| 589 | Stem cells | 1 | 25 | 3027 | 3262 |
| 589 | Feminist geography | 1 | 25 | 4 | 9 |
| 589 | cloning | 1 | 25 | 1415 | 1840 |
| 597 | Psychosomatic Medicine | 3 | 24 | 1079 | 1987 |
| 597 | Algorithms | 2 | 24 | 1057 | 1136 |
| 597 | Bioethics | 1 | 24 | 1908 | 1590 |
| 597 | Public Finance | 3 | 24 | 174 | 259 |
| 597 | Teaching | 2 | 24 | 2598 | 2737 |
| 597 | Social behavior | 2 | 24 | 1693 | 2338 |
| 597 | software | 5 | 24 | 827 | 2177 |
| 604 | Law | 2 | 23 | 2207 | 1423 |
| 604 | Public Health Administration | 2 | 23 | 615 | 636 |
| 604 | Cryptography | 3 | 23 | 747 | 888 |
| 607 | Civil Engineering | 8 | 22 | 1192 | 2390 |
| 607 | Mechatronics | 2 | 22 | 1027 | 1355 |
| 607 | Neuropsychiatry | 1 | 22 | 1821 | 2028 |
| 607 | Video Games | 1 | 22 | 218 | 157 |
| 607 | China | 4 | 22 | 3107 | 5284 |
| 607 | Glass | 1 | 22 | 2063 | 2189 |
| 607 | educational innovations | 1 | 22 | 1074 | 984 |
| 614 | Occupational Therapy | 4 | 21 | 1119 | 1756 |
| 614 | Religious Education | 7 | 21 | 53 | 144 |
| 614 | Occupational Health | 4 | 21 | 1249 | 2185 |
| 614 | Neuroimaging | 2 | 21 | 447 | 673 |
| 614 | Industrial Safety | 4 | 21 | 1221 | 2346 |
| 614 | Organizational learning | 1 | 21 | 1268 | 838 |
| 614 | Combinatorial optimization | 5 | 21 | 377 | 752 |
| 614 | Expert Systems | 1 | 21 | 539 | 473 |
| 614 | Medical Anthropology | 2 | 21 | 1970 | 3339 |
| 614 | Knowledge management | 1 | 21 | 1504 | 904 |
| 614 | Environment | 4 | 21 | 5622 | 10426 |
| 614 | animals | 1 | 21 | 2555 | 2291 |
| 614 | telemarketing | 2 | 21 | 112 | 327 |
| 614 | mental processes | 2 | 21 | 526 | 694 |
| 614 | European Union | 2 | 21 | 232 | 319 |
| 629 | Ecophysiology | 1 | 20 | 587 | 664 |
| 629 | Mycology | 2 | 20 | 2398 | 3172 |
| 629 | refugees | 1 | 20 | 591 | 549 |
| 629 | Quality of life | 3 | 20 | 1904 | 3677 |
| 629 | Fungi | 2 | 20 | 1494 | 2220 |
| 629 | brain mapping | 2 | 20 | 999 | 1619 |
| 635 | Theology | 8 | 19 | 537 | 469 |
| 635 | Machine Learning | 2 | 19 | 568 | 802 |
| 635 | Electrophoresis | 2 | 19 | 2490 | 3566 |
| 635 | Technology Assessment | 1 | 19 | 845 | 1196 |
| 635 | Behaviorism | 2 | 19 | 115 | 161 |
| 635 | Mass Spectrometry | 2 | 19 | 1824 | 2538 |
| 635 | families | 6 | 19 | 643 | 1578 |
| 635 | Psychological adaptation | 2 | 19 | 60 | 79 |
| 635 | Urban Areas | 6 | 19 | 126 | 543 |
| 635 | Jurisprudence | 10 | 19 | 568 | 1858 |
| 635 | Developed countries | 1 | 19 | 462 | 551 |
| 635 | synthesis | 3 | 19 | 1271 | 1735 |
| 647 | Humanities | 7 | 18 | 1302 | 2665 |
| 647 | Social Choice Theory | 1 | 18 | 466 | 404 |
| 647 | Land Use Planning | 2 | 18 | 529 | 933 |
| 647 | Comparative Education | 2 | 18 | 386 | 473 |
| 647 | Thin Films | 2 | 18 | 908 | 1159 |
| 647 | Photogrammetry | 1 | 18 | 1840 | 1015 |
| 647 | Collective behavior | 1 | 18 | 210 | 250 |
| 647 | disarmament | 1 | 18 | 400 | 355 |
| 647 | sustainability | 2 | 18 | 1216 | 2065 |
| 647 | arms control | 1 | 18 | 198 | 130 |
| 647 | Health insurance | 1 | 18 | 1054 | 1151 |
| 647 | Financial Institutions | 1 | 18 | 852 | 879 |
| 659 | Agricultural Chemistry | 1 | 17 | 4106 | 4529 |
| 659 | Power Electronics | 3 | 17 | 763 | 1193 |
| 659 | Computer Architecture | 2 | 17 | 700 | 870 |
| 659 | Optical Communications | 3 | 17 | 720 | 1180 |
| 659 | Fiber Optics | 1 | 17 | 1026 | 879 |
| 659 | Plant breeding | 1 | 17 | 1716 | 1917 |
| 659 | Transgenic plants | 1 | 17 | 1047 | 1403 |
| 659 | Optoelectronic devices | 6 | 17 | 629 | 1385 |
| 659 | aromatic plants | 1 | 17 | 505 | 438 |
| 659 | industrial relations | 2 | 17 | 1172 | 1508 |
| 659 | Cheminformatics | 1 | 17 | 789 | 1010 |
| 670 | Cognitive Psychology | 3 | 16 | 470 | 753 |
| 670 | Macroeconomics | 2 | 16 | 550 | 748 |
| 670 | Logistics | 1 | 16 | 1071 | 1282 |
| 670 | Topology | 2 | 16 | 471 | 491 |
| 670 | Biological Systems | 1 | 16 | 1696 | 1856 |
| 670 | Consumer Protection | 1 | 16 | 437 | 550 |
| 670 | Social Systems | 2 | 16 | 332 | 405 |
| 670 | Globalization | 1 | 16 | 1244 | 1468 |
| 670 | Broadcasting | 2 | 16 | 250 | 440 |
| 670 | Wind power | 3 | 16 | 357 | 729 |
| 670 | consumers | 1 | 16 | 794 | 933 |
| 670 | Customer Relations | 1 | 16 | 232 | 260 |
| 670 | Radio | 6 | 16 | 638 | 1325 |
| 670 | Evolution equations | 1 | 16 | 359 | 285 |
| 670 | eye movements | 1 | 16 | 40 | 46 |
| 685 | Criminology | 2 | 15 | 1275 | 1630 |
| 685 | Clinical Psychology | 3 | 15 | 1850 | 3376 |
| 685 | Intelligent Transportation Systems | 2 | 15 | 1041 | 1574 |
| 685 | Microbial Ecology | 2 | 15 | 3325 | 5415 |
| 685 | Process Control | 1 | 15 | 1630 | 2205 |
| 685 | preventive medicine | 5 | 15 | 1335 | 3474 |
| 685 | United Kingdom | 4 | 15 | 1848 | 3765 |
| 685 | Eigenvalues | 4 | 15 | 228 | 195 |
| 685 | Emotions | 2 | 15 | 801 | 1412 |
| 694 | Arts | 3 | 14 | 589 | 532 |
| 694 | Telecommunication Systems | 2 | 14 | 2171 | 2746 |
| 694 | Knot Theory | 2 | 14 | 316 | 293 |
| 694 | Microwaves | 3 | 14 | 1326 | 1667 |
| 694 | Soil ecology | 1 | 14 | 1432 | 1942 |
| 699 | Urban Policy | 1 | 13 | 1536 | 2020 |
| 699 | Engineering Ethics | 1 | 13 | 473 | 682 |
| 699 | Symbolic interactionism | 1 | 13 | 231 | 295 |
| 699 | Rheology | 1 | 13 | 1181 | 1373 |
| 699 | Happiness | 2 | 13 | 621 | 1251 |
| 699 | Professional ethics | 1 | 13 | 659 | 923 |
| 699 | association | 1 | 13 | 119 | 188 |
| 699 | disaster relief | 1 | 13 | 560 | 781 |
| 699 | Organizations | 1 | 13 | 119 | 188 |
| 708 | Literature | 4 | 12 | 927 | 494 |
| 708 | Logic | 3 | 12 | 524 | 738 |
| 708 | Pharmacognosy | 3 | 12 | 2212 | 4292 |
| 708 | Tribology | 2 | 12 | 1681 | 2473 |
| 708 | Nonparametric Statistics | 1 | 12 | 387 | 367 |
| 708 | Palliative Care | 2 | 12 | 1481 | 2325 |
| 708 | Psychopharmacology | 2 | 12 | 2428 | 3562 |
| 708 | Statistical Mechanics | 1 | 12 | 2186 | 1968 |
| 708 | Depression | 1 | 12 | 844 | 1317 |
| 708 | Flexible electronics | 1 | 12 | 171 | 363 |
| 708 | Adoption | 3 | 12 | 118 | 286 |
| 708 | Chemical processes | 1 | 12 | 1299 | 1557 |
| 708 | reasoning | 1 | 12 | 850 | 941 |
| 708 | machinery | 3 | 12 | 906 | 1710 |
| 708 | infection | 1 | 12 | 3378 | 4252 |
| 708 | economic analysis | 1 | 12 | 586 | 754 |
| 708 | Scandinavia | 3 | 12 | 744 | 1515 |
| 708 | Appetite | 1 | 12 | 1390 | 1923 |
| 726 | Development Economics | 1 | 11 | 991 | 1265 |
| 726 | Mass Media | 4 | 11 | 953 | 1337 |
| 726 | Hermeneutics | 4 | 11 | 6 | 10 |
| 726 | biological factors | 1 | 11 | 3597 | 4477 |
| 726 | Combinatorial analysis | 2 | 11 | 1451 | 1513 |
| 726 | biological monitoring | 1 | 11 | 1160 | 1753 |
| 732 | Emergency Nursing | 1 | 10 | 417 | 564 |
| 732 | Agricultural Economics | 1 | 10 | 193 | 244 |
| 732 | Emergency Medicine | 2 | 10 | 2482 | 3658 |
| 732 | solar power | 1 | 10 | 1585 | 2235 |
| 732 | Law and Economics | 2 | 10 | 414 | 633 |
| 732 | Sports | 1 | 10 | 3730 | 3744 |
| 732 | Health promotion | 7 | 10 | 1191 | 4001 |
| 732 | Therapeutics | 2 | 10 | 2849 | 4798 |
| 732 | solar cells | 1 | 10 | 1730 | 2410 |
| 741 | Geography | 4 | 9 | 2482 | 4794 |
| 741 | Database Management | 1 | 9 | 1472 | 1851 |
| 741 | Health Information Management | 1 | 9 | 702 | 1241 |
| 741 | Neonatology | 2 | 9 | 1046 | 2002 |
| 741 | adolescence | 2 | 9 | 1314 | 2388 |
| 741 | civil society | 10 | 9 | 7 | 203 |
| 741 | Adolescent Psychology | 2 | 9 | 1269 | 2232 |
| 741 | Social participation | 10 | 9 | 5 | 32 |
| 741 | Child Development | 2 | 9 | 2903 | 4619 |
| 741 | Transport | 1 | 9 | 1267 | 1807 |
| 741 | Sea | 1 | 9 | 1142 | 1591 |
| 741 | Fishery resources | 1 | 9 | 1279 | 1747 |
| 741 | corrections | 1 | 9 | 370 | 421 |
| 741 | punishment | 1 | 9 | 245 | 304 |
| 741 | winds | 1 | 9 | 301 | 333 |
| 741 | economic development projects | 1 | 9 | 489 | 758 |
| 741 | Comparative linguistics | 4 | 9 | 26 | 26 |
| 741 | Fisheries | 1 | 9 | 3088 | 3589 |
| 759 | Economic Geography | 1 | 8 | 752 | 944 |
| 759 | Intercultural Communication | 3 | 8 | 400 | 1054 |
| 759 | Systems Analysis | 1 | 8 | 2233 | 2919 |
| 759 | Biomass Energy | 1 | 8 | 4271 | 5396 |
| 759 | complementary therapies | 1 | 8 | 4104 | 5230 |
| 759 | motivation | 1 | 8 | 661 | 1000 |
| 759 | Religion and Psychology | 1 | 8 | 1191 | 1515 |
| 759 | International Education | 1 | 8 | 532 | 789 |
| 759 | Emotion | 1 | 8 | 431 | 699 |
| 759 | Proteome | 1 | 8 | 2353 | 3320 |
| 759 | Biometrics | 1 | 8 | 2136 | 2592 |
| 759 | phase diagrams | 1 | 8 | 332 | 411 |
| 759 | Reading | 1 | 8 | 1028 | 1308 |
| 759 | Biomass | 1 | 8 | 1355 | 2237 |
| 759 | human development | 1 | 8 | 1456 | 2049 |
| 759 | migration policy | 1 | 8 | 478 | 723 |
| 759 | Plasma devices | 1 | 8 | 598 | 823 |
| 759 | proteins | 1 | 8 | 4042 | 5003 |
| 777 | Vocational Education | 1 | 7 | 1078 | 1361 |
| 777 | Comparative Physiology | 1 | 7 | 1583 | 2069 |
| 777 | Architectural Design | 1 | 7 | 904 | 1101 |
| 777 | Operator theory | 2 | 7 | 600 | 831 |
| 777 | Terahertz Technology | 1 | 7 | 106 | 147 |
| 777 | Continuing Education | 1 | 7 | 901 | 1052 |
| 777 | Pastoral Theology | 6 | 7 | 82 | 211 |
| 777 | Brain | 1 | 7 | 4575 | 5756 |
| 777 | design | 1 | 7 | 602 | 578 |
| 777 | technical education | 1 | 7 | 1029 | 1314 |
| 777 | coal | 1 | 7 | 2789 | 3840 |
| 788 | History of Medicine | 4 | 6 | 519 | 855 |
| 788 | air quality management | 1 | 6 | 1240 | 2070 |
| 788 | Hydrodynamics | 1 | 6 | 1067 | 1624 |
| 788 | Structural Equation Modeling | 1 | 6 | 221 | 357 |
| 788 | Family | 5 | 6 | 851 | 2650 |
| 788 | natural products | 3 | 6 | 2115 | 3894 |
| 788 | Crystal growth | 1 | 6 | 1816 | 2424 |
| 788 | indoor air pollution | 1 | 6 | 901 | 1538 |
| 788 | Ventilation | 1 | 6 | 1187 | 1822 |
| 788 | atmosphere | 1 | 6 | 1535 | 2181 |
| 788 | Sick building syndrome | 1 | 6 | 901 | 1538 |
| 788 | biological agents | 3 | 6 | 761 | 1389 |
| 788 | Southern states | 1 | 6 | 706 | 884 |
| 801 | Nursing | 1 | 5 | 3862 | 4825 |
| 801 | Engineering Physics | 1 | 5 | 266 | 244 |
| 801 | Nuclear Engineering | 4 | 5 | 1337 | 2755 |
| 801 | Comparative Literature | 1 | 5 | 502 | 116 |
| 801 | Optoelectronics | 1 | 5 | 1192 | 1445 |
| 801 | Environmental Economics | 1 | 5 | 992 | 1456 |
| 801 | Educational Research | 1 | 5 | 237 | 440 |
| 801 | Nanophotonics | 1 | 5 | 663 | 1057 |
| 801 | Nonlinear functional analysis | 1 | 5 | 1886 | 2310 |
| 801 | Virology | 1 | 5 | 5597 | 7425 |
| 801 | Computational Intelligence | 1 | 5 | 2051 | 2631 |
| 801 | Quantum Optics | 5 | 5 | 828 | 2042 |
| 801 | Friction | 1 | 5 | 247 | 519 |
| 801 | Supramolecular chemistry | 1 | 5 | 546 | 833 |
| 801 | microwave communication systems | 1 | 5 | 350 | 516 |
| 801 | Watershed management | 1 | 5 | 572 | 949 |
| 801 | global environmental change | 1 | 5 | 1715 | 2718 |
| 801 | Welding | 1 | 5 | 689 | 761 |
| 801 | Protective coatings | 1 | 5 | 393 | 572 |
| 801 | Information society | 4 | 5 | 102 | 690 |
| 801 | Japan | 1 | 5 | 4079 | 4899 |
| 801 | viruses | 1 | 5 | 2830 | 4096 |
| 801 | Cognitive Learning | 1 | 5 | 283 | 454 |
| 801 | family violence | 1 | 5 | 866 | 1430 |
| 801 | child abuse | 1 | 5 | 1708 | 2566 |
| 801 | crime | 1 | 5 | 1218 | 1529 |
| 801 | infrared technology | 1 | 5 | 499 | 588 |
| 801 | Microwave devices | 1 | 5 | 332 | 406 |
| 801 | environmental issues | 1 | 5 | 976 | 1661 |
| 830 | Emergency Medical Services | 1 | 4 | 1894 | 2789 |
| 830 | Medical genetics | 1 | 4 | 4993 | 6728 |
| 830 | Cytogenetics | 1 | 4 | 3085 | 4383 |
| 830 | Particle Physics | 1 | 4 | 1463 | 1599 |
| 830 | Coastal zone management | 1 | 4 | 1398 | 2232 |
| 830 | Quantitative Research | 2 | 4 | 283 | 732 |
| 830 | Marine invertebrates | 1 | 4 | 522 | 788 |
| 830 | Obsessive-Compulsive Disorder | 1 | 4 | 259 | 402 |
| 830 | Knowledge | 1 | 4 | 779 | 960 |
| 830 | Marine resources | 1 | 4 | 1424 | 2251 |
| 830 | Methodology | 2 | 4 | 720 | 1528 |
| 830 | Laser Spectroscopy | 4 | 4 | 858 | 2013 |
| 830 | Heterocyclic compounds | 2 | 4 | 1473 | 2463 |
| 843 | Architectural Acoustics | 1 | 3 | 132 | 203 |
| 843 | Food Policy | 1 | 3 | 777 | 1403 |
| 843 | Historical Sociology | 1 | 3 | 186 | 286 |
| 843 | Religion and Politics | 1 | 3 | 198 | 310 |
| 843 | Pragmatics | 2 | 3 | 91 | 219 |
| 843 | Sustainable agriculture | 1 | 3 | 1584 | 2517 |
| 843 | Urban Transportation | 1 | 3 | 420 | 816 |
| 843 | agricultural policy | 1 | 3 | 570 | 1068 |
| 843 | cooperation | 2 | 3 | 201 | 545 |
| 843 | Political Participation | 1 | 3 | 625 | 960 |
| 843 | Religion and Sociology | 1 | 3 | 584 | 659 |
| 843 | Investment analysis | 2 | 3 | 1154 | 2188 |
| 843 | election law | 1 | 3 | 465 | 735 |
| 843 | Groundwater | 1 | 3 | 1373 | 2107 |
| 843 | training | 1 | 3 | 304 | 412 |
| 843 | Microstructure | 2 | 3 | 1309 | 2350 |
| 843 | Elections | 1 | 3 | 623 | 878 |
| 843 | Soundproofing | 1 | 3 | 257 | 336 |
| 843 | Statistical models | 1 | 3 | 247 | 482 |
| 843 | Attention | 2 | 3 | 2993 | 5399 |
| 843 | Heat | 3 | 3 | 84 | 202 |
| 843 | Perception | 2 | 3 | 3111 | 5430 |
| 843 | Mental Health Counseling | 1 | 3 | 239 | 392 |
| 843 | Voting | 1 | 3 | 425 | 702 |
| 843 | Cerebral cortex | 1 | 3 | 1680 | 2565 |
| 868 | Green Chemistry | 1 | 2 | 2823 | 4102 |
| 868 | Higher Education | 1 | 2 | 1126 | 1817 |
| 868 | Sustainable Engineering | 1 | 2 | 2907 | 4246 |
| 868 | Social Stratification | 1 | 2 | 188 | 341 |
| 868 | Production Planning | 1 | 2 | 589 | 1143 |
| 868 | Semantics | 2 | 2 | 354 | 822 |
| 868 | Social History | 3 | 2 | 619 | 1201 |
| 868 | Human Rights | 1 | 2 | 1253 | 1875 |
| 868 | Virtual reality | 1 | 2 | 824 | 1437 |
| 868 | consumer behavior | 1 | 2 | 1070 | 1769 |
| 868 | Democracy | 1 | 2 | 735 | 888 |
| 868 | Wireless Sensor Networks | 1 | 2 | 70 | 178 |
| 868 | Cold War | 1 | 2 | 330 | 308 |
| 868 | Social mobility | 1 | 2 | 188 | 341 |
| 868 | Production Control | 1 | 2 | 575 | 1124 |
| 868 | Socialism | 2 | 2 | 282 | 561 |
| 868 | labor policy | 2 | 2 | 34 | 167 |
| 868 | Family Therapy | 2 | 2 | 1080 | 2339 |
| 868 | civilization | 5 | 2 | 1210 | 2079 |
| 868 | Elderly | 2 | 2 | 1984 | 2939 |
| 868 | income | 1 | 2 | 415 | 714 |
| 868 | Latin America | 3 | 2 | 1620 | 2829 |
| 868 | older people | 3 | 2 | 2139 | 4208 |
| 868 | Input-output analysis | 1 | 2 | 577 | 940 |
| 868 | Humanitarian Assistance | 1 | 2 | 93 | 179 |
| 868 | counseling | 2 | 2 | 2049 | 4070 |
| 868 | optical pattern recognition | 1 | 2 | 311 | 588 |
| 868 | Wealth | 1 | 2 | 415 | 714 |
| 868 | social conflict | 1 | 2 | 505 | 793 |
| 868 | Bible | 5 | 2 | 241 | 397 |
| 868 | Capital market | 1 | 2 | 803 | 1393 |
| 868 | supercritical fluids | 1 | 2 | 764 | 1349 |
| 868 | Nuclear family | 2 | 2 | 242 | 597 |
| 868 | explosives | 1 | 2 | 519 | 785 |
| 868 | Youth | 1 | 2 | 1316 | 2142 |
| 868 | social status | 1 | 2 | 188 | 341 |
| 868 | Occupational mobility | 1 | 2 | 188 | 341 |
| 868 | Endocrine system | 1 | 2 | 1800 | 1490 |
| 906 | History | 9 | 1 | 766 | 1853 |
| 906 | Urban Planning | 1 | 1 | 802 | 1420 |
| 906 | Philosophy of Mind | 2 | 1 | 341 | 808 |
| 906 | Community Psychiatry | 1 | 1 | 2238 | 3539 |
| 906 | Probability | 1 | 1 | 1264 | 2145 |
| 906 | Plant Ecology | 1 | 1 | 3025 | 4490 |
| 906 | Supply Chain Management | 2 | 1 | 90 | 554 |
| 906 | Nuclear Fusion | 1 | 1 | 1099 | 1632 |
| 906 | Municipal Engineering | 1 | 1 | 889 | 1637 |
| 906 | Nanobiotechnology | 1 | 1 | 925 | 1731 |
| 906 | Disability Studies | 1 | 1 | 625 | 1086 |
| 906 | income distribution | 1 | 1 | 330 | 632 |
| 906 | Communication and Culture | 3 | 1 | 310 | 945 |
| 906 | Justice | 1 | 1 | 50 | 128 |
| 906 | Combinatorial chemistry | 1 | 1 | 1827 | 2942 |
| 906 | poverty | 1 | 1 | 1024 | 1927 |
| 906 | Land use | 1 | 1 | 2175 | 3494 |
| 906 | Online social networks | 1 | 1 | 762 | 1505 |
| 906 | Behavioral research | 1 | 1 | 1193 | 2298 |
| 906 | Nonlinear Optics | 1 | 1 | 611 | 999 |
| 906 | Political Ethics | 1 | 1 | 219 | 441 |
| 906 | Travel | 1 | 1 | 2058 | 3402 |
| 906 | Fractional Calculus | 1 | 1 | 379 | 707 |
| 906 | Interdisciplinary Research | 1 | 1 | 59 | 102 |
| 906 | Marriage | 1 | 1 | 1089 | 1935 |
| 906 | Critical theory | 1 | 1 | 379 | 649 |
| 906 | Transcendentalism | 2 | 1 | 7 | 25 |
| 906 | Semiotics | 1 | 1 | 784 | 988 |
| 906 | France | 1 | 1 | 924 | 1141 |
| 906 | games | 1 | 1 | 60 | 66 |
| 906 | Southeast Asia | 1 | 1 | 964 | 1503 |
| 906 | Diplomatic relations | 1 | 1 | 1468 | 1760 |
| 906 | land | 1 | 1 | 169 | 312 |
| 906 | Psychiatric Epidemiology | 1 | 1 | 1120 | 2088 |
| 906 | plasma | 1 | 1 | 140 | 310 |
| 906 | cultural pluralism | 1 | 1 | 793 | 1347 |
| 906 | ecotourism | 1 | 1 | 502 | 1058 |
| 906 | industrial location | 1 | 1 | 102 | 146 |
| 906 | women | 3 | 1 | 993 | 2601 |
| 906 | fusion reactors | 1 | 1 | 859 | 1326 |
| 946 | Musicology | 1 | 0 | 497 | 760 |
| 946 | Architecture | 1 | 0 | 1358 | 1898 |
| 946 | British Literature | 1 | 0 | 19 | 30 |
| 946 | Political Economy | 1 | 0 | 369 | 684 |
| 946 | Bioenergetics | 1 | 0 | 1728 | 2628 |
| 946 | American Literature | 3 | 0 | 689 | 1027 |
| 946 | Photography | 1 | 0 | 3467 | 4421 |
| 946 | Cartography | 1 | 0 | 1202 | 1797 |
| 946 | Environmental Law | 1 | 0 | 2310 | 3649 |
| 946 | Industrial Sociology | 1 | 0 | 381 | 645 |
| 946 | Antitrust Law | 1 | 0 | 363 | 572 |
| 946 | Quantum Mechanics | 1 | 0 | 419 | 694 |
| 946 | Open Access Publishing | 1 | 0 | 201 | 388 |
| 946 | Intellectual Property | 3 | 0 | 211 | 890 |
| 946 | microwave antennas | 1 | 0 | 850 | 1438 |
| 946 | Ethnohistory | 2 | 0 | 33 | 129 |
| 946 | Integrated Circuits | 1 | 0 | 1511 | 2289 |
| 946 | Energy metabolism | 1 | 0 | 1230 | 1815 |
| 946 | monetary policy | 1 | 0 | 154 | 393 |
| 946 | Regional Development | 1 | 0 | 572 | 1038 |
| 946 | Ferroelectricity | 2 | 0 | 1304 | 2428 |
| 946 | Logic Programming | 1 | 0 | 599 | 935 |
| 946 | Editing | 1 | 0 | 11 | 9 |
| 946 | Developmental Immunology | 1 | 0 | 1693 | 2767 |
| 946 | Development planning | 1 | 0 | 524 | 952 |
| 946 | Eastern Europe | 1 | 0 | 2010 | 3026 |
| 946 | inscriptions | 6 | 0 | 36 | 251 |
| 946 | scholarly publishing | 1 | 0 | 369 | 825 |
| 946 | cell membrane | 1 | 0 | 1172 | 1703 |
| 946 | teachers | 1 | 0 | 39 | 61 |
| 946 | pain | 1 | 0 | 2842 | 4227 |
| 946 | Europa | 1 | 0 | 1034 | 1695 |
| 946 | Spain | 2 | 0 | 1183 | 2301 |
| 946 | econometric models | 1 | 0 | 1171 | 1915 |
| 946 | sexual behavior | 1 | 0 | 1380 | 2491 |
| 946 | Economic planning | 1 | 0 | 1031 | 1870 |
| 946 | Leisure | 1 | 0 | 678 | 1240 |
| 946 | Social structure | 1 | 0 | 71 | 122 |