| 1 | Chemistry | 614 | 15.9K | 620 | 873 |
| 2 | Analytical Chemistry | 300 | 9.2K | 225 | 283 |
| 3 | Catalysis | 195 | 8.1K | 392 | 421 |
| 4 | Materials | 157 | 7.9K | 893 | 709 |
| 5 | Physics | 585 | 7.6K | 625 | 1341 |
| 6 | Chemical Engineering | 150 | 6.1K | 613 | 584 |
| 7 | Electrochemistry | 200 | 6.0K | 419 | 326 |
| 7 | Colloids | 189 | 6.0K | 340 | 399 |
| 9 | Biocompatible Materials | 93 | 5.4K | 614 | 562 |
| 10 | Mathematics | 560 | 5.4K | 285 | 432 |
| 11 | Materials Science | 98 | 5.2K | 751 | 587 |
| 12 | Surface Chemistry | 175 | 5.1K | 356 | 423 |
| 13 | Biochemical Engineering | 83 | 4.6K | 489 | 543 |
| 14 | Polymers | 254 | 4.6K | 397 | 566 |
| 15 | Nanotechnology | 135 | 4.5K | 698 | 815 |
| 16 | Environmental Management | 95 | 4.5K | 233 | 241 |
| 17 | Biochemistry | 159 | 4.1K | 1324 | 1448 |
| 18 | actuators | 71 | 3.8K | 245 | 160 |
| 18 | transducers | 71 | 3.8K | 245 | 160 |
| 20 | Nanostructured Materials | 93 | 3.7K | 477 | 447 |
| 21 | mathematical analysis | 154 | 3.2K | 148 | 97 |
| 22 | Organic Chemistry | 207 | 3.2K | 158 | 413 |
| 23 | China | 172 | 3.1K | 143 | 158 |
| 24 | Statistical physics | 197 | 3.0K | 402 | 573 |
| 25 | Nuclear Physics | 215 | 3.0K | 670 | 888 |
| 26 | polymerization | 174 | 2.9K | 422 | 613 |
| 27 | Artificial Intelligence | 58 | 2.8K | 745 | 526 |
| 28 | Green Chemistry | 48 | 2.6K | 285 | 283 |
| 29 | Ecology | 69 | 2.4K | 1266 | 1431 |
| 30 | environmental indicators | 51 | 2.3K | 56 | 48 |
| 31 | Pollution | 64 | 2.3K | 1115 | 1301 |
| 32 | Molecular Biology | 83 | 2.3K | 1506 | 1718 |
| 33 | Geography | 69 | 2.1K | 288 | 310 |
| 34 | Biomedical Engineering | 84 | 2.0K | 817 | 982 |
| 35 | Environmental Health | 50 | 1.7K | 1177 | 1230 |
| 36 | Optical materials | 39 | 1.7K | 680 | 648 |
| 37 | Environment | 45 | 1.7K | 1159 | 1509 |
| 38 | nanoscience | 26 | 1.6K | 959 | 781 |
| 39 | Hydrology | 51 | 1.6K | 421 | 440 |
| 40 | Nonlinear functional analysis | 75 | 1.6K | 40 | 44 |
| 41 | Science | 108 | 1.5K | 1489 | 2564 |
| 42 | synthesis | 123 | 1.5K | 6 | 14 |
| 43 | Biotechnology | 48 | 1.4K | 1412 | 1581 |
| 44 | Information Science | 48 | 1.4K | 397 | 478 |
| 45 | Toxicology | 33 | 1.4K | 1335 | 1151 |
| 46 | Functional Analysis | 60 | 1.4K | 155 | 127 |
| 47 | Optics | 142 | 1.3K | 587 | 882 |
| 48 | environmental protection | 28 | 1.3K | 1039 | 885 |
| 49 | Sustainable Engineering | 29 | 1.3K | 357 | 364 |
| 50 | Environmental Geology | 44 | 1.2K | 189 | 231 |
| 51 | Bioengineering | 52 | 1.2K | 903 | 1242 |
| 52 | Bioorganic chemistry | 53 | 1.2K | 550 | 692 |
| 53 | Spectrum analysis | 75 | 1.2K | 878 | 1231 |
| 54 | Psychiatry | 17 | 1.1K | 1560 | 1067 |
| 55 | Solid State Chemistry | 52 | 1.1K | 520 | 522 |
| 56 | Asia | 14 | 1.1K | 1136 | 284 |
| 57 | Technology | 35 | 1.1K | 1019 | 879 |
| 58 | Medicine | 74 | 1.1K | 1839 | 2584 |
| 59 | Research | 73 | 1.1K | 1647 | 2199 |
| 60 | Environmental Toxicology | 23 | 1.1K | 709 | 639 |
| 61 | pigments | 34 | 1.1K | 111 | 91 |
| 62 | pollutants | 21 | 1.0K | 539 | 419 |
| 62 | Environmental pollutants | 21 | 1.0K | 681 | 507 |
| 62 | environmental exposure | 21 | 1.0K | 538 | 389 |
| 65 | Physical organic chemistry | 49 | 1.0K | 152 | 214 |
| 66 | Cross-Cultural Studies | 2 | 1.0K | 924 | 55 |
| 66 | cross-cultural comparison | 2 | 1.0K | 661 | 30 |
| 68 | Analytical Biochemistry | 39 | 973 | 248 | 337 |
| 69 | Water | 19 | 944 | 919 | 905 |
| 70 | Environmental Policy | 28 | 939 | 920 | 1105 |
| 71 | Biosensors | 13 | 929 | 549 | 455 |
| 72 | Pharmaceutical Technology | 32 | 899 | 302 | 360 |
| 73 | Solitons | 45 | 879 | 73 | 145 |
| 73 | Fractals | 45 | 879 | 73 | 146 |
| 73 | Chaos | 45 | 879 | 73 | 145 |
| 76 | catalytic activity | 30 | 876 | 92 | 141 |
| 77 | Plant physiology | 28 | 867 | 647 | 777 |
| 78 | Environmental monitoring | 34 | 857 | 1039 | 1388 |
| 79 | Molecular Spectroscopy | 30 | 856 | 413 | 322 |
| 80 | Molecules | 113 | 843 | 96 | 388 |
| 81 | Soil Science | 31 | 829 | 442 | 551 |
| 82 | environmental pollution | 24 | 823 | 1566 | 1686 |
| 83 | Nanostructures | 34 | 821 | 388 | 629 |
| 84 | Electrochemical Analysis | 43 | 818 | 255 | 373 |
| 85 | health planning | 45 | 816 | 341 | 397 |
| 86 | Magnetic Materials | 19 | 808 | 563 | 392 |
| 87 | Bioelectronics | 12 | 767 | 466 | 461 |
| 88 | Biology | 52 | 756 | 2013 | 3170 |
| 89 | Earth Sciences | 38 | 748 | 867 | 1019 |
| 90 | Geomorphology | 21 | 744 | 464 | 493 |
| 91 | Neural circuitry | 30 | 739 | 470 | 609 |
| 92 | Soft Condensed Matter | 30 | 720 | 264 | 323 |
| 93 | biopolymers | 24 | 706 | 320 | 359 |
| 94 | Numerical Analysis | 74 | 689 | 257 | 556 |
| 94 | Semiconductors | 31 | 689 | 535 | 447 |
| 96 | Botany | 50 | 673 | 962 | 1467 |
| 97 | Algebra | 78 | 641 | 148 | 205 |
| 98 | Meteorology | 44 | 636 | 457 | 855 |
| 99 | Biophysics | 31 | 634 | 1720 | 1962 |
| 100 | Psychology | 85 | 604 | 806 | 1525 |
| 101 | Urban Planning | 6 | 586 | 217 | 81 |
| 101 | community development | 6 | 586 | 364 | 85 |
| 101 | Housing | 6 | 586 | 295 | 108 |
| 101 | Population | 6 | 586 | 578 | 239 |
| 105 | Molecular structure | 46 | 585 | 420 | 758 |
| 106 | Atmospheric Physics | 23 | 581 | 480 | 601 |
| 106 | Membranes | 8 | 581 | 1039 | 788 |
| 108 | Nanochemistry | 26 | 578 | 184 | 201 |
| 109 | Medicinal plants | 4 | 574 | 1132 | 529 |
| 110 | Nonlinear Dynamics | 40 | 572 | 555 | 763 |
| 111 | Geophysics | 30 | 569 | 1079 | 1305 |
| 112 | Pharmacognosy | 2 | 558 | 2028 | 744 |
| 113 | Bioinorganic chemistry | 12 | 550 | 716 | 493 |
| 114 | Chemical analysis | 16 | 547 | 346 | 323 |
| 115 | fuel cells | 20 | 543 | 408 | 598 |
| 116 | Nanoparticles | 34 | 533 | 391 | 726 |
| 117 | Photonics | 14 | 528 | 898 | 842 |
| 118 | Microbiology | 31 | 521 | 1875 | 2533 |
| 119 | Microstructure | 28 | 518 | 97 | 82 |
| 120 | Biomass Energy | 5 | 512 | 1832 | 1212 |
| 121 | Energy Policy | 7 | 498 | 1780 | 1425 |
| 122 | Electronics | 39 | 497 | 911 | 1167 |
| 123 | Mathematical Physics | 62 | 494 | 623 | 989 |
| 124 | Solid State Physics | 27 | 477 | 1471 | 1515 |
| 125 | Fuzzy systems | 54 | 472 | 116 | 320 |
| 126 | Land use | 15 | 463 | 365 | 409 |
| 127 | water supply | 8 | 440 | 460 | 421 |
| 128 | Organometallic chemistry | 35 | 437 | 451 | 662 |
| 129 | Nervous system | 9 | 423 | 1254 | 1090 |
| 130 | Water pollution | 15 | 422 | 1199 | 1390 |
| 131 | Food additives | 4 | 417 | 875 | 500 |
| 131 | hydrocolloids | 4 | 417 | 503 | 373 |
| 133 | Solar Energy | 15 | 414 | 656 | 854 |
| 134 | Industrial Engineering | 14 | 406 | 749 | 743 |
| 135 | Environmental Engineering | 20 | 391 | 1380 | 1751 |
| 136 | Surface-Active Agents | 10 | 390 | 499 | 503 |
| 136 | Surface properties | 10 | 390 | 544 | 553 |
| 138 | Signal Processing | 22 | 384 | 961 | 1212 |
| 139 | Engineering Mathematics | 33 | 372 | 395 | 604 |
| 140 | Energy Storage | 15 | 361 | 455 | 583 |
| 141 | Differential Equations | 23 | 356 | 294 | 361 |
| 142 | Multimedia Systems | 43 | 354 | 242 | 623 |
| 143 | Endocrinology | 7 | 353 | 1547 | 1369 |
| 144 | Energy Conversion | 13 | 347 | 527 | 843 |
| 144 | Genomics | 13 | 347 | 1311 | 1400 |
| 146 | Plant diseases | 15 | 340 | 826 | 821 |
| 147 | Engineering | 45 | 339 | 979 | 1752 |
| 148 | Climatology | 26 | 336 | 487 | 883 |
| 149 | clay | 8 | 335 | 428 | 434 |
| 150 | atmosphere | 23 | 324 | 147 | 311 |
| 151 | Systems Engineering | 18 | 314 | 788 | 999 |
| 152 | soil microbiology | 11 | 306 | 697 | 1020 |
| 153 | Recycling | 4 | 305 | 479 | 490 |
| 154 | Radiation | 43 | 293 | 375 | 866 |
| 155 | Condensed Matter | 26 | 292 | 1209 | 1547 |
| 156 | Ceramic materials | 16 | 289 | 493 | 600 |
| 157 | Urban Policy | 5 | 288 | 621 | 397 |
| 157 | city planning | 5 | 288 | 1195 | 745 |
| 159 | Computer Science | 41 | 284 | 276 | 741 |
| 160 | radioactive waste | 3 | 279 | 808 | 644 |
| 160 | industrial waste | 3 | 279 | 841 | 646 |
| 160 | Hazardous waste | 3 | 279 | 945 | 698 |
| 163 | System analysis | 11 | 278 | 1250 | 1190 |
| 164 | Crystal growth | 7 | 275 | 659 | 499 |
| 165 | Mycology | 5 | 273 | 1117 | 834 |
| 166 | United States | 14 | 271 | 2125 | 2200 |
| 167 | Telecommunication | 32 | 270 | 728 | 1317 |
| 168 | Wireless Communication Systems | 29 | 268 | 722 | 1162 |
| 169 | Plasma chemistry | 12 | 264 | 132 | 166 |
| 170 | Physical Geography | 17 | 260 | 99 | 213 |
| 171 | Geology | 12 | 252 | 1430 | 1472 |
| 172 | Pharmacology | 15 | 245 | 2075 | 2507 |
| 172 | natural disasters | 5 | 245 | 977 | 691 |
| 174 | Carbon | 5 | 244 | 981 | 1028 |
| 175 | Astronomy | 13 | 234 | 1361 | 1577 |
| 176 | Plastics | 18 | 231 | 600 | 814 |
| 177 | Boundary Value Problems | 59 | 228 | 50 | 336 |
| 178 | coal | 12 | 226 | 773 | 1163 |
| 179 | Organometallic compounds | 24 | 223 | 387 | 727 |
| 180 | Renewable Energy Sources | 7 | 222 | 1821 | 2218 |
| 180 | solar power | 8 | 222 | 435 | 586 |
| 180 | Intelligent Control Systems | 32 | 222 | 119 | 301 |
| 180 | solar cells | 8 | 222 | 475 | 636 |
| 184 | Neurology | 14 | 220 | 1967 | 2480 |
| 185 | bioclimatology | 19 | 216 | 183 | 465 |
| 186 | Cytology | 4 | 215 | 2671 | 2333 |
| 186 | Image Processing | 18 | 215 | 887 | 1378 |
| 188 | Adolescent | 12 | 213 | 921 | 1105 |
| 188 | Fungi | 2 | 213 | 1092 | 716 |
| 188 | Mountains | 16 | 213 | 54 | 78 |
| 191 | Zeolites | 6 | 212 | 626 | 665 |
| 192 | hazard mitigation | 3 | 208 | 933 | 486 |
| 193 | Developmental Psychology | 14 | 206 | 414 | 683 |
| 193 | lasers | 8 | 206 | 1356 | 1107 |
| 195 | Risk assessment | 7 | 205 | 292 | 208 |
| 196 | soil management | 7 | 202 | 285 | 400 |
| 196 | Composite Materials | 7 | 202 | 1711 | 1863 |
| 198 | plant molecular biology | 11 | 201 | 726 | 1179 |
| 199 | Luminescence | 15 | 198 | 491 | 676 |
| 200 | Atomic spectroscopy | 13 | 197 | 505 | 600 |
| 201 | ecological risk assessment | 6 | 196 | 71 | 80 |
| 201 | Health Risk Assessment | 6 | 196 | 207 | 150 |
| 203 | Physiology | 9 | 186 | 2151 | 2464 |
| 204 | Chromatographic analysis | 20 | 185 | 614 | 968 |
| 205 | Photochemistry | 12 | 184 | 792 | 1085 |
| 205 | Photobiology | 12 | 184 | 556 | 864 |
| 207 | Chromatography | 19 | 182 | 525 | 888 |
| 208 | Cognitive Science | 10 | 181 | 762 | 1100 |
| 209 | optical devices | 3 | 179 | 494 | 220 |
| 210 | Plants | 19 | 176 | 733 | 1391 |
| 211 | Food | 7 | 175 | 1978 | 2156 |
| 211 | reasoning | 8 | 175 | 146 | 199 |
| 213 | particles | 4 | 174 | 868 | 568 |
| 213 | Catalysts | 12 | 174 | 233 | 387 |
| 215 | Public Health | 10 | 171 | 2509 | 2830 |
| 216 | internet | 14 | 170 | 623 | 1073 |
| 217 | Geochemistry | 8 | 169 | 1157 | 1314 |
| 218 | Internet of Things | 12 | 166 | 492 | 851 |
| 219 | Pharmaceutical Chemistry | 7 | 165 | 2157 | 2261 |
| 219 | tillage | 4 | 165 | 323 | 396 |
| 221 | Nutrition | 5 | 163 | 2708 | 2583 |
| 221 | Agricultural Science | 2 | 163 | 250 | 222 |
| 221 | natural products | 10 | 163 | 964 | 1077 |
| 224 | Digital electronics | 13 | 162 | 59 | 56 |
| 225 | Computer Graphics | 13 | 161 | 776 | 1076 |
| 225 | Fractional Calculus | 10 | 161 | 17 | 63 |
| 225 | Cosmochemistry | 7 | 161 | 534 | 660 |
| 228 | Environmental Chemistry | 13 | 159 | 870 | 1699 |
| 229 | biological factors | 8 | 157 | 1131 | 1286 |
| 229 | Behavior | 12 | 157 | 1471 | 2354 |
| 231 | Information Theory | 9 | 153 | 812 | 891 |
| 231 | Physical Chemistry | 5 | 153 | 1638 | 1471 |
| 231 | Plasma polymerization | 5 | 153 | 171 | 167 |
| 234 | Computational Biology | 8 | 149 | 1389 | 1613 |
| 234 | Educational Technology | 7 | 149 | 1041 | 1156 |
| 236 | Cybernetics | 15 | 147 | 630 | 1176 |
| 236 | Neuropsychology | 11 | 147 | 1122 | 1514 |
| 236 | Tribology | 8 | 147 | 676 | 772 |
| 236 | Forest Ecology | 6 | 147 | 676 | 801 |
| 240 | computer networks | 19 | 146 | 929 | 1718 |
| 241 | Quantum Gravity | 8 | 145 | 1354 | 1406 |
| 241 | Child Development | 4 | 145 | 1443 | 1319 |
| 243 | miniaturization | 16 | 142 | 701 | 1431 |
| 244 | Molecular evolution | 7 | 140 | 848 | 1244 |
| 245 | Social Psychology | 20 | 139 | 786 | 1601 |
| 246 | Economics | 7 | 138 | 2621 | 2375 |
| 246 | Quantum electronics | 4 | 138 | 1373 | 982 |
| 246 | Plant tissue culture | 3 | 138 | 688 | 529 |
| 246 | Optoelectronic devices | 4 | 138 | 848 | 407 |
| 246 | Plant cell culture | 3 | 138 | 602 | 521 |
| 251 | Computer Vision | 9 | 136 | 619 | 957 |
| 252 | Plant Morphology | 6 | 133 | 377 | 379 |
| 252 | Ecohydrology | 6 | 133 | 188 | 218 |
| 252 | Aquatic ecology | 6 | 133 | 615 | 620 |
| 255 | Soil ecology | 9 | 132 | 372 | 705 |
| 256 | Mental Disorders | 5 | 131 | 1775 | 1845 |
| 256 | Teaching | 9 | 131 | 977 | 1129 |
| 258 | Statistics | 23 | 130 | 961 | 1424 |
| 258 | Cognition | 19 | 130 | 664 | 1253 |
| 260 | Rural Development | 2 | 129 | 637 | 407 |
| 260 | Mental illness | 6 | 129 | 1114 | 1410 |
| 262 | Molecular Genetics | 2 | 128 | 1755 | 1513 |
| 263 | Child psychology | 6 | 127 | 950 | 1167 |
| 264 | Atmospheric Chemistry | 2 | 126 | 892 | 815 |
| 264 | Population Genetics | 2 | 126 | 1211 | 1031 |
| 264 | radiative transfer | 25 | 126 | 145 | 364 |
| 267 | Biodiversity | 8 | 125 | 1267 | 1577 |
| 268 | Microelectronics | 12 | 124 | 847 | 1346 |
| 268 | Forest Management | 4 | 124 | 791 | 808 |
| 270 | Electrophoresis | 11 | 123 | 785 | 1201 |
| 270 | Reproduction | 6 | 123 | 1413 | 1465 |
| 270 | finance | 4 | 123 | 2044 | 1618 |
| 270 | rehabilitation | 1 | 123 | 2717 | 1531 |
| 274 | Ecological Engineering | 4 | 122 | 533 | 675 |
| 274 | Telecommunication Systems | 19 | 122 | 502 | 1067 |
| 274 | Supramolecular chemistry | 11 | 122 | 65 | 88 |
| 274 | Light | 1 | 122 | 1247 | 906 |
| 278 | Molecular ecology | 1 | 120 | 1347 | 1066 |
| 278 | Granular materials | 2 | 120 | 796 | 490 |
| 280 | Energy Harvesting | 2 | 119 | 502 | 579 |
| 281 | Plant Ecology | 15 | 118 | 742 | 1531 |
| 282 | adolescence | 9 | 115 | 481 | 759 |
| 283 | Sustainable Development | 10 | 114 | 993 | 1826 |
| 284 | Electrical Engineering | 14 | 113 | 1536 | 1817 |
| 285 | food technology | 8 | 112 | 1515 | 2127 |
| 286 | Plant Genetics | 1 | 111 | 1019 | 720 |
| 286 | Hydrometeorology | 1 | 111 | 344 | 253 |
| 286 | Plant genetic engineering | 1 | 111 | 1220 | 841 |
| 289 | Microbial Biotechnology | 6 | 110 | 620 | 863 |
| 289 | personality | 19 | 110 | 557 | 1390 |
| 289 | radar | 3 | 110 | 153 | 94 |
| 289 | Sonar | 3 | 110 | 140 | 80 |
| 289 | Navigation | 3 | 110 | 272 | 120 |
| 294 | Bioinformatics | 7 | 109 | 1223 | 1537 |
| 295 | Porous materials | 8 | 108 | 366 | 488 |
| 295 | Japan | 7 | 108 | 1073 | 1195 |
| 295 | Psychophysiology | 15 | 108 | 1195 | 2087 |
| 295 | Plant cells | 4 | 108 | 799 | 1228 |
| 299 | Dynamics | 15 | 107 | 662 | 1060 |
| 300 | Youth | 7 | 106 | 406 | 627 |
| 300 | Metals | 5 | 106 | 1533 | 1533 |
| 302 | Environmental Law | 2 | 105 | 1166 | 1247 |
| 302 | Plasma devices | 3 | 105 | 287 | 255 |
| 304 | human development | 4 | 104 | 684 | 777 |
| 305 | soil conservation | 6 | 103 | 494 | 724 |
| 305 | land degradation | 6 | 103 | 263 | 486 |
| 305 | degradation | 6 | 103 | 263 | 486 |
| 308 | Education | 10 | 102 | 1968 | 2334 |
| 308 | Child welfare | 4 | 102 | 921 | 797 |
| 310 | Geographic information systems | 9 | 101 | 549 | 777 |
| 311 | Neurophysiology | 14 | 99 | 1222 | 2164 |
| 312 | food industry | 5 | 98 | 515 | 516 |
| 312 | Heterocyclic compounds | 9 | 98 | 505 | 574 |
| 314 | Information Technology | 7 | 97 | 1622 | 2018 |
| 314 | Detectors | 5 | 97 | 1181 | 1294 |
| 316 | Mechatronics | 12 | 94 | 348 | 830 |
| 316 | Computational Intelligence | 12 | 94 | 195 | 496 |
| 316 | Computational Complexity | 6 | 94 | 712 | 683 |
| 316 | management | 4 | 94 | 2886 | 2936 |
| 320 | Heterocyclic chemistry | 11 | 93 | 148 | 208 |
| 321 | Personality Assessment | 1 | 92 | 807 | 599 |
| 322 | Nanoelectronics | 9 | 91 | 406 | 505 |
| 322 | air quality management | 4 | 91 | 395 | 497 |
| 322 | Fixed Point Theory | 10 | 91 | 69 | 91 |
| 325 | Building Materials | 2 | 89 | 1822 | 1815 |
| 325 | cryosphere | 3 | 89 | 338 | 367 |
| 327 | energy conservation | 4 | 87 | 1781 | 2190 |
| 328 | Cognitive neuroscience | 4 | 85 | 791 | 998 |
| 328 | Quantum Optics | 8 | 85 | 529 | 698 |
| 328 | Brain | 9 | 85 | 1385 | 2116 |
| 328 | Laser Spectroscopy | 8 | 85 | 480 | 655 |
| 332 | Nanobiotechnology | 2 | 83 | 517 | 656 |
| 333 | Automation | 13 | 82 | 1104 | 2018 |
| 333 | Industrial Microbiology | 4 | 82 | 1587 | 1977 |
| 333 | Simulation Methods | 1 | 82 | 1728 | 882 |
| 336 | Data Mining | 5 | 81 | 1204 | 1527 |
| 336 | sanitation | 3 | 81 | 1275 | 1673 |
| 336 | biofuels | 1 | 81 | 474 | 490 |
| 339 | Water quality management | 12 | 80 | 804 | 1556 |
| 340 | Climate | 6 | 77 | 319 | 644 |
| 341 | Hormones | 1 | 76 | 1538 | 1165 |
| 341 | Decision making | 6 | 76 | 960 | 1342 |
| 343 | Evolutionary Computation | 5 | 75 | 313 | 671 |
| 343 | Swarm Intelligence | 5 | 75 | 157 | 386 |
| 345 | Agricultural Chemistry | 5 | 74 | 1609 | 2060 |
| 346 | Health Policy | 2 | 73 | 2134 | 1709 |
| 347 | Control Theory | 2 | 72 | 1909 | 1425 |
| 347 | Computer-Aided Design | 2 | 72 | 1432 | 1127 |
| 347 | Ultrasonics | 1 | 72 | 1764 | 1460 |
| 347 | Sonochemistry | 1 | 72 | 1107 | 1027 |
| 347 | Social work | 3 | 72 | 1292 | 1061 |
| 352 | Evolution equations | 5 | 71 | 87 | 85 |
| 353 | Health Services Research | 1 | 70 | 2061 | 1298 |
| 353 | behavioral medicine | 4 | 70 | 1018 | 1496 |
| 355 | Behavioral research | 8 | 69 | 230 | 435 |
| 356 | Environmental Psychology | 5 | 68 | 229 | 573 |
| 356 | Educational Psychology | 7 | 68 | 904 | 1357 |
| 356 | Calculus of Variations | 2 | 68 | 669 | 437 |
| 356 | Semigroups | 10 | 68 | 88 | 110 |
| 360 | Sociology | 6 | 66 | 2068 | 2571 |
| 360 | Mineral resources | 3 | 66 | 640 | 860 |
| 362 | Signal Transduction | 3 | 64 | 1242 | 1493 |
| 363 | Emulsions | 6 | 63 | 204 | 297 |
| 364 | Microprocessors | 6 | 62 | 380 | 556 |
| 364 | Communication | 6 | 62 | 1423 | 1954 |
| 364 | alcoholism | 7 | 62 | 816 | 1335 |
| 367 | Semiconductor industry | 5 | 61 | 421 | 511 |
| 368 | Crystallography | 17 | 60 | 689 | 1038 |
| 368 | Cell death | 2 | 60 | 1062 | 1293 |
| 370 | Computer Architecture | 5 | 59 | 395 | 457 |
| 370 | human behavior | 7 | 59 | 1484 | 2919 |
| 372 | Geometry | 11 | 58 | 615 | 795 |
| 372 | Manufacturing Processes | 5 | 58 | 1725 | 2139 |
| 372 | Sustainable agriculture | 2 | 58 | 878 | 834 |
| 372 | Consciousness | 4 | 58 | 420 | 519 |
| 376 | food contamination | 4 | 56 | 843 | 1055 |
| 377 | Genetics | 3 | 55 | 2772 | 3155 |
| 377 | Histology | 4 | 55 | 1415 | 1838 |
| 377 | Intelligent Transportation Systems | 4 | 55 | 934 | 1326 |
| 377 | Formal Languages | 3 | 55 | 291 | 165 |
| 377 | probabilities | 12 | 55 | 694 | 1005 |
| 377 | weather | 5 | 55 | 380 | 740 |
| 383 | Chemical Ecology | 2 | 54 | 623 | 727 |
| 383 | Medical Anthropology | 4 | 54 | 981 | 1526 |
| 383 | Waste management | 9 | 54 | 741 | 1449 |
| 383 | pheromones | 2 | 54 | 576 | 698 |
| 387 | Socialization | 1 | 52 | 885 | 804 |
| 387 | drug abuse | 4 | 52 | 512 | 668 |
| 389 | Telecommunications | 6 | 51 | 473 | 810 |
| 389 | Entropy | 12 | 51 | 421 | 1157 |
| 389 | data collection | 3 | 51 | 1045 | 1296 |
| 389 | genome | 1 | 51 | 1852 | 1683 |
| 393 | Wireless Communication | 6 | 50 | 245 | 429 |
| 393 | plant oils | 7 | 50 | 140 | 296 |
| 395 | Database Management | 2 | 49 | 876 | 862 |
| 395 | Horticulture | 4 | 49 | 630 | 827 |
| 395 | Astrophysics | 10 | 49 | 1758 | 2624 |
| 395 | Cryptography | 8 | 49 | 327 | 516 |
| 395 | Cell Biology | 4 | 49 | 2540 | 3345 |
| 395 | thinking | 3 | 49 | 303 | 459 |
| 395 | Creativity | 3 | 49 | 283 | 504 |
| 402 | Environmental Geochemistry | 3 | 48 | 551 | 779 |
| 402 | drugs | 5 | 48 | 1409 | 2002 |
| 402 | Minerals | 3 | 48 | 789 | 1029 |
| 405 | Epidemiology | 5 | 47 | 2280 | 3083 |
| 405 | Pesticides | 4 | 47 | 522 | 775 |
| 405 | antibiotics | 3 | 47 | 197 | 332 |
| 408 | Water Purification | 8 | 46 | 633 | 1276 |
| 408 | Microbial Metabolism | 1 | 46 | 417 | 431 |
| 410 | Adhesion | 7 | 45 | 367 | 812 |
| 410 | adhesives | 7 | 45 | 396 | 822 |
| 412 | Biochemical Genetics | 2 | 44 | 582 | 382 |
| 413 | Databases | 1 | 43 | 579 | 439 |
| 414 | Herbal medicine | 2 | 42 | 898 | 1282 |
| 414 | mass transfer | 6 | 42 | 1232 | 1972 |
| 416 | Information Systems | 4 | 41 | 1181 | 1770 |
| 416 | Chemical kinetics | 7 | 41 | 431 | 717 |
| 416 | Friction | 2 | 41 | 143 | 249 |
| 416 | Social behavior | 11 | 41 | 552 | 1405 |
| 416 | plant communities | 4 | 41 | 860 | 1435 |
| 421 | Remote Sensing | 6 | 40 | 1008 | 1430 |
| 421 | Plant hormones | 2 | 40 | 390 | 545 |
| 423 | Agricultural Ecology | 2 | 39 | 1146 | 1492 |
| 423 | Biogeochemistry | 4 | 39 | 853 | 1465 |
| 423 | Asymmetric synthesis | 1 | 39 | 263 | 118 |
| 423 | Chemical structure | 10 | 39 | 153 | 538 |
| 423 | Entomology | 4 | 39 | 1853 | 2106 |
| 428 | Animal husbandry | 1 | 38 | 501 | 427 |
| 428 | Coding Theory | 3 | 38 | 377 | 365 |
| 428 | livestock | 1 | 38 | 761 | 583 |
| 431 | Engineering Geology | 2 | 37 | 1488 | 1644 |
| 431 | Measurement | 3 | 37 | 1352 | 1681 |
| 431 | individual differences | 2 | 37 | 377 | 564 |
| 431 | Biomass | 1 | 37 | 1202 | 1232 |
| 435 | Ophthalmology | 2 | 36 | 1580 | 1728 |
| 435 | Landscape Ecology | 1 | 36 | 702 | 759 |
| 435 | Tourism | 2 | 36 | 1942 | 2316 |
| 438 | Tissue Engineering | 1 | 35 | 611 | 534 |
| 438 | Investment analysis | 4 | 35 | 828 | 1233 |
| 438 | Cancer | 2 | 35 | 2465 | 2955 |
| 441 | Optoelectronics | 9 | 34 | 240 | 529 |
| 441 | Stochastic Processes | 8 | 34 | 507 | 1081 |
| 441 | Algorithms | 6 | 34 | 460 | 861 |
| 441 | Psychopharmacology | 2 | 34 | 1371 | 1605 |
| 445 | Computer Engineering | 4 | 33 | 834 | 1315 |
| 445 | Machine Learning | 1 | 33 | 570 | 484 |
| 445 | wind erosion | 1 | 33 | 215 | 254 |
| 448 | Histochemistry | 3 | 32 | 947 | 1235 |
| 448 | Animal Behavior | 2 | 32 | 1873 | 2279 |
| 448 | Conservation Biology | 4 | 32 | 891 | 1448 |
| 448 | Wetland ecology | 4 | 32 | 339 | 677 |
| 452 | Mass Media | 1 | 31 | 1352 | 745 |
| 452 | nucleic acids | 3 | 31 | 1321 | 1824 |
| 454 | Wildlife conservation | 1 | 30 | 1461 | 1525 |
| 454 | Reproductive toxicology | 1 | 30 | 699 | 747 |
| 454 | Wetland conservation | 3 | 30 | 277 | 550 |
| 454 | Documentation | 1 | 30 | 479 | 385 |
| 454 | aromatic plants | 3 | 30 | 224 | 284 |
| 454 | residential treatment | 1 | 30 | 299 | 264 |
| 454 | free radicals | 2 | 30 | 1343 | 1837 |
| 454 | Perception | 5 | 30 | 1125 | 1814 |
| 454 | Wetlands | 3 | 30 | 292 | 552 |
| 463 | Psycholinguistics | 4 | 29 | 798 | 1261 |
| 463 | Agronomy | 1 | 29 | 731 | 841 |
| 463 | mycoses | 1 | 29 | 1080 | 1132 |
| 463 | Agriculture | 1 | 29 | 2856 | 2514 |
| 467 | Food Preservation | 5 | 28 | 605 | 1064 |
| 467 | Chromosome mapping | 2 | 28 | 1761 | 2281 |
| 467 | air quality | 5 | 28 | 93 | 508 |
| 467 | Computer Literacy | 1 | 28 | 470 | 465 |
| 467 | gene mapping | 2 | 28 | 1876 | 2447 |
| 472 | Dendrochronology | 2 | 27 | 39 | 63 |
| 472 | Microscopy | 5 | 27 | 1062 | 1656 |
| 474 | Neurochemistry | 5 | 26 | 1571 | 2624 |
| 474 | Gerontology | 3 | 26 | 1690 | 2037 |
| 476 | Visual Communication | 3 | 25 | 447 | 704 |
| 476 | Probability | 4 | 25 | 477 | 883 |
| 476 | Image enhancement | 3 | 25 | 348 | 635 |
| 479 | Economic History | 6 | 24 | 2239 | 3344 |
| 479 | Neurolinguistics | 2 | 24 | 534 | 760 |
| 479 | Microorganisms | 2 | 24 | 1129 | 1606 |
| 479 | sexual behavior | 1 | 24 | 1069 | 1094 |
| 483 | Pharmacy | 2 | 23 | 2053 | 2564 |
| 483 | Paleoclimatology | 2 | 23 | 1157 | 1519 |
| 483 | Pharmacokinetics | 2 | 23 | 968 | 1409 |
| 486 | Immunology | 1 | 22 | 3099 | 3204 |
| 486 | Robotics | 6 | 22 | 1210 | 2163 |
| 486 | greenhouse effect | 1 | 22 | 134 | 189 |
| 486 | Inflammation | 1 | 22 | 1461 | 1712 |
| 486 | global environmental change | 1 | 22 | 1223 | 1483 |
| 486 | Carbon dioxide | 1 | 22 | 134 | 189 |
| 492 | Geriatrics | 3 | 21 | 2297 | 2984 |
| 492 | Embryology | 2 | 21 | 1374 | 1836 |
| 492 | Animal Nutrition | 1 | 21 | 858 | 890 |
| 492 | Developmental Biology | 2 | 21 | 1869 | 2509 |
| 492 | Animal breeding | 1 | 21 | 1097 | 1106 |
| 492 | Metallic Glasses | 3 | 21 | 438 | 780 |
| 492 | Animal genetics | 1 | 21 | 843 | 917 |
| 492 | bioluminescence | 5 | 21 | 216 | 590 |
| 492 | Planets | 3 | 21 | 1217 | 1890 |
| 492 | Imaging systems | 8 | 21 | 390 | 1092 |
| 492 | Growth | 2 | 21 | 1091 | 1584 |
| 492 | energy resources | 1 | 21 | 1901 | 2376 |
| 492 | data protection | 5 | 21 | 381 | 965 |
| 505 | Mental Health | 3 | 20 | 1471 | 2167 |
| 505 | Fiber Optics | 1 | 20 | 1297 | 1272 |
| 505 | Learning | 6 | 20 | 843 | 1836 |
| 505 | color | 1 | 20 | 487 | 469 |
| 505 | Natural history | 12 | 20 | 1473 | 3841 |
| 505 | Cell metabolism | 1 | 20 | 984 | 1220 |
| 505 | educational innovations | 1 | 20 | 952 | 976 |
| 512 | Paleontology | 2 | 19 | 1358 | 1600 |
| 512 | Ceramics | 2 | 19 | 1636 | 1863 |
| 512 | Paleobiology | 2 | 19 | 467 | 535 |
| 512 | Diagnostic Imaging | 8 | 19 | 1016 | 2172 |
| 512 | Soil biology | 1 | 19 | 1229 | 1515 |
| 512 | cell interaction | 1 | 19 | 1353 | 1580 |
| 518 | Zoology | 1 | 18 | 3016 | 2798 |
| 518 | Linguistics | 2 | 18 | 1521 | 1587 |
| 518 | Food service management | 1 | 18 | 790 | 1086 |
| 518 | Glass | 1 | 18 | 1451 | 1561 |
| 518 | Steroids | 1 | 18 | 1277 | 1428 |
| 518 | pottery | 1 | 18 | 1378 | 1508 |
| 518 | silicon | 2 | 18 | 480 | 665 |
| 525 | dietary supplements | 1 | 17 | 1412 | 1746 |
| 525 | Language Arts | 1 | 17 | 227 | 209 |
| 525 | Developing countries | 3 | 17 | 2198 | 3195 |
| 528 | Crystallization | 1 | 16 | 790 | 697 |
| 528 | Paleogeography | 2 | 16 | 1033 | 1430 |
| 530 | Neuropsychiatry | 1 | 15 | 1061 | 1219 |
| 530 | Immunopathology | 1 | 15 | 1330 | 1561 |
| 530 | Altitude Sickness | 1 | 15 | 259 | 304 |
| 530 | motivation | 2 | 15 | 445 | 820 |
| 530 | Altitude | 1 | 15 | 259 | 304 |
| 530 | Immune system | 1 | 15 | 1172 | 1432 |
| 530 | Immunity | 1 | 15 | 1881 | 2248 |
| 537 | Oncology | 1 | 14 | 2377 | 2940 |
| 537 | Hematology | 1 | 14 | 1966 | 2111 |
| 537 | Geriatric Oncology | 1 | 14 | 798 | 1023 |
| 537 | Visual Perception | 2 | 14 | 1441 | 1916 |
| 537 | polar regions | 1 | 14 | 933 | 1070 |
| 537 | Agricultural systems | 1 | 14 | 530 | 806 |
| 537 | biomedicine | 1 | 14 | 872 | 1155 |
| 544 | Hydraulic Engineering | 1 | 13 | 1241 | 1350 |
| 544 | Quality Control | 1 | 13 | 2492 | 2861 |
| 544 | Natural resources | 1 | 13 | 1150 | 1384 |
| 544 | Hydrodynamics | 1 | 13 | 824 | 1054 |
| 544 | Neuroplasticity | 1 | 13 | 504 | 681 |
| 544 | Chemical industry | 3 | 13 | 1242 | 1982 |
| 544 | Liquid chromatography | 2 | 13 | 641 | 844 |
| 551 | Social Sciences | 2 | 12 | 3848 | 4464 |
| 551 | Humanities | 2 | 12 | 2382 | 2812 |
| 551 | Computational Chemistry | 1 | 12 | 1044 | 1241 |
| 551 | Metallurgy | 2 | 12 | 2257 | 2719 |
| 551 | Operations Research | 4 | 12 | 1857 | 2888 |
| 551 | Information visualization | 1 | 12 | 379 | 392 |
| 551 | Transportation | 2 | 12 | 1802 | 2452 |
| 551 | Magnetic Resonance Spectroscopy | 2 | 12 | 1198 | 1506 |
| 551 | clay minerals | 1 | 12 | 492 | 663 |
| 551 | Geospatial data | 1 | 12 | 72 | 162 |
| 551 | environmental issues | 2 | 12 | 533 | 1070 |
| 562 | Cognitive Psychology | 3 | 11 | 447 | 790 |
| 562 | School Psychology | 1 | 11 | 724 | 967 |
| 562 | Fracture mechanics | 2 | 11 | 1478 | 2053 |
| 562 | economic policy | 2 | 11 | 2563 | 3016 |
| 562 | Speech Disorders | 1 | 11 | 1312 | 1490 |
| 562 | economic analysis | 2 | 11 | 314 | 700 |
| 562 | school psychologists | 1 | 11 | 351 | 522 |
| 562 | Australia | 2 | 11 | 2054 | 2845 |
| 562 | Quantum theory | 2 | 11 | 1149 | 1450 |
| 562 | Speech | 1 | 11 | 1294 | 1486 |
| 562 | Radiation effects | 2 | 11 | 803 | 1436 |
| 562 | Menopause | 1 | 11 | 498 | 640 |
| 562 | language | 1 | 11 | 1258 | 1384 |
| 575 | Human Geography | 2 | 10 | 1266 | 1827 |
| 575 | Ion Exchange | 1 | 10 | 216 | 268 |
| 575 | Substance Abuse | 3 | 10 | 1211 | 2061 |
| 575 | Mechanics | 4 | 10 | 1160 | 2018 |
| 575 | East Asia | 4 | 10 | 507 | 1275 |
| 575 | Solvent extraction | 1 | 10 | 216 | 268 |
| 575 | drug addiction | 3 | 10 | 908 | 1763 |
| 582 | Obstetrics | 1 | 9 | 2351 | 2747 |
| 582 | Superconductors | 1 | 9 | 1177 | 1255 |
| 582 | complementary therapies | 1 | 9 | 2547 | 3099 |
| 582 | Superconductivity | 1 | 9 | 685 | 778 |
| 582 | Religion and Psychology | 1 | 9 | 1041 | 1200 |
| 582 | Latin America | 4 | 9 | 1006 | 1525 |
| 582 | stability | 2 | 9 | 129 | 201 |
| 582 | Laboratories | 5 | 9 | 7 | 41 |
| 582 | Fertilizers | 1 | 9 | 553 | 773 |
| 582 | Trace elements | 1 | 9 | 523 | 850 |
| 582 | Emotions | 2 | 9 | 687 | 1199 |
| 582 | Pregnancy | 1 | 9 | 1251 | 1592 |
| 594 | Materials Engineering | 3 | 8 | 758 | 1566 |
| 594 | Early Childhood Education | 2 | 8 | 732 | 1177 |
| 594 | Nanomedicine | 1 | 8 | 491 | 884 |
| 594 | Logistics | 1 | 8 | 1001 | 1358 |
| 594 | Genetic engineering | 3 | 8 | 1762 | 3003 |
| 594 | Geriatric Psychiatry | 1 | 8 | 1359 | 1722 |
| 594 | Comparative Physiology | 1 | 8 | 1101 | 1459 |
| 594 | Computational Linguistics | 4 | 8 | 438 | 1159 |
| 594 | Hematopoietic stem cell transplantation | 1 | 8 | 635 | 898 |
| 594 | Mental Health Services | 1 | 8 | 1573 | 1988 |
| 594 | sustainability | 2 | 8 | 1079 | 1929 |
| 594 | nuclear magnetic resonance spectroscopy | 1 | 8 | 1018 | 1183 |
| 594 | Stem cells | 1 | 8 | 1532 | 1955 |
| 594 | Monomers | 1 | 8 | 164 | 283 |
| 594 | concepts | 1 | 8 | 261 | 305 |
| 594 | Microwaves | 2 | 8 | 1397 | 1838 |
| 594 | biological evolution | 1 | 8 | 2508 | 3151 |
| 594 | Insects | 1 | 8 | 1977 | 2240 |
| 594 | NMR | 1 | 8 | 846 | 1009 |
| 594 | Aging | 1 | 8 | 2989 | 3398 |
| 594 | Philippines | 1 | 8 | 246 | 388 |
| 594 | magnetic resonance | 1 | 8 | 859 | 1018 |
| 594 | Phylogeny | 1 | 8 | 1263 | 1722 |
| 617 | Archaeology | 2 | 7 | 1397 | 1845 |
| 617 | Hydrogeology | 1 | 7 | 1055 | 1408 |
| 617 | Sleep Disorders | 2 | 7 | 1442 | 2077 |
| 617 | Freeze-Drying | 1 | 7 | 664 | 925 |
| 617 | Hypothermia | 1 | 7 | 664 | 925 |
| 617 | Freeze Drying | 1 | 7 | 664 | 925 |
| 617 | Protozoa | 1 | 7 | 682 | 928 |
| 617 | Water chemistry | 2 | 7 | 474 | 1094 |
| 617 | evaluation | 1 | 7 | 325 | 489 |
| 617 | Sleep | 2 | 7 | 1474 | 2119 |
| 627 | Radiology | 1 | 6 | 1665 | 1955 |
| 627 | Nuclear Engineering | 5 | 6 | 1094 | 2147 |
| 627 | Ecological Genetics | 1 | 6 | 1027 | 1325 |
| 627 | Bioenergetics | 1 | 6 | 1216 | 1685 |
| 627 | Sociolinguistics | 1 | 6 | 778 | 948 |
| 627 | Topology | 3 | 6 | 341 | 573 |
| 627 | Bioremediation | 1 | 6 | 1467 | 2038 |
| 627 | Thin Films | 3 | 6 | 526 | 1154 |
| 627 | Photogrammetry | 3 | 6 | 838 | 1225 |
| 627 | Well-being | 2 | 6 | 206 | 530 |
| 627 | Mass Spectrometry | 1 | 6 | 1469 | 1855 |
| 627 | Water quality | 1 | 6 | 523 | 890 |
| 627 | Radiobiology | 1 | 6 | 1416 | 1781 |
| 627 | Interfaces | 1 | 6 | 651 | 930 |
| 627 | Radioisotopes | 1 | 6 | 1544 | 1785 |
| 627 | Sulfur | 2 | 6 | 146 | 384 |
| 627 | Auditing | 1 | 6 | 645 | 877 |
| 627 | Cerebral cortex | 2 | 6 | 926 | 1543 |
| 645 | Speech-Language Pathology | 1 | 5 | 527 | 772 |
| 645 | Mobile Computing | 2 | 5 | 1275 | 2034 |
| 645 | Actuarial Science | 1 | 5 | 441 | 607 |
| 645 | Distance Education | 1 | 5 | 714 | 1180 |
| 645 | Adult Education | 1 | 5 | 1060 | 1358 |
| 645 | Microbial Genetics | 1 | 5 | 613 | 934 |
| 645 | Sports Medicine | 4 | 5 | 1966 | 3276 |
| 645 | Plant Biotechnology | 1 | 5 | 1208 | 1639 |
| 645 | Statistical Mechanics | 2 | 5 | 751 | 1140 |
| 645 | Industrial Ecology | 1 | 5 | 322 | 569 |
| 645 | Continuing Education | 1 | 5 | 805 | 1005 |
| 645 | Liquid Crystals | 7 | 5 | 597 | 1421 |
| 645 | Molecular recognition | 1 | 5 | 450 | 782 |
| 645 | Raman spectroscopy | 1 | 5 | 1277 | 1733 |
| 645 | microwave communication systems | 1 | 5 | 605 | 841 |
| 645 | Infrared spectroscopy | 1 | 5 | 684 | 1078 |
| 645 | Sports | 4 | 5 | 1722 | 2951 |
| 645 | Vocational guidance | 2 | 5 | 1043 | 1824 |
| 645 | automatic speech recognition | 1 | 5 | 324 | 533 |
| 645 | insurance | 1 | 5 | 649 | 847 |
| 645 | multimedia | 1 | 5 | 809 | 1114 |
| 645 | Sites | 1 | 5 | 837 | 1221 |
| 645 | software | 3 | 5 | 1041 | 2181 |
| 645 | Interactive multimedia | 1 | 5 | 949 | 1341 |
| 645 | Vegetation | 1 | 5 | 229 | 376 |
| 645 | Nanotubes | 1 | 5 | 422 | 665 |
| 645 | amino acids | 1 | 5 | 965 | 1434 |
| 645 | Microwave devices | 1 | 5 | 702 | 914 |
| 645 | biological monitoring | 2 | 5 | 611 | 1347 |
| 674 | Nuclear Energy | 3 | 4 | 929 | 1749 |
| 674 | Immunotherapy | 1 | 4 | 2057 | 2804 |
| 674 | Fluid Mechanics | 2 | 4 | 1652 | 2525 |
| 674 | Graph Theory | 1 | 4 | 1181 | 1302 |
| 674 | Crop Science | 1 | 4 | 234 | 372 |
| 674 | Experimental Psychology | 1 | 4 | 905 | 1125 |
| 674 | Industrial Safety | 1 | 4 | 1833 | 2367 |
| 674 | Immunopharmacology | 1 | 4 | 1505 | 2075 |
| 674 | X-ray spectroscopy | 1 | 4 | 361 | 538 |
| 674 | Memory disorders | 2 | 4 | 356 | 708 |
| 674 | Adolescent Psychology | 1 | 4 | 1238 | 1736 |
| 674 | nuclear magnetic resonance | 1 | 4 | 1249 | 1540 |
| 674 | psychopathology | 1 | 4 | 460 | 660 |
| 674 | Geobiology | 1 | 4 | 659 | 973 |
| 674 | nucleotides | 2 | 4 | 402 | 739 |
| 674 | cytokines | 1 | 4 | 1590 | 2201 |
| 674 | Roads | 1 | 4 | 965 | 1287 |
| 674 | Memory | 2 | 4 | 1567 | 2530 |
| 692 | Public Policy | 1 | 3 | 2447 | 3327 |
| 692 | Radiography | 1 | 3 | 1020 | 1428 |
| 692 | Marine Meteorology | 1 | 3 | 447 | 685 |
| 692 | health services accessibility | 1 | 3 | 1389 | 2019 |
| 692 | Schizophrenia | 1 | 3 | 1168 | 1537 |
| 692 | Research Design | 1 | 3 | 1588 | 2291 |
| 692 | Molecular cloning | 2 | 3 | 1534 | 2556 |
| 692 | Genetic recombination | 2 | 3 | 1518 | 2534 |
| 692 | Watershed management | 1 | 3 | 515 | 933 |
| 692 | psychophysics | 2 | 3 | 445 | 814 |
| 692 | Taste | 1 | 3 | 581 | 966 |
| 692 | flavor | 1 | 3 | 405 | 753 |
| 692 | civilization | 1 | 3 | 1589 | 1425 |
| 692 | smell | 1 | 3 | 581 | 966 |
| 692 | Recombinant DNA | 2 | 3 | 1583 | 2626 |
| 692 | Evolution | 1 | 3 | 2296 | 3026 |
| 692 | Attention | 2 | 3 | 1491 | 2495 |
| 709 | Environmental Ethics | 1 | 2 | 353 | 552 |
| 709 | Electromagnetism | 1 | 2 | 1456 | 1903 |
| 709 | Operator theory | 1 | 2 | 818 | 1024 |
| 709 | Multivariate Analysis | 1 | 2 | 870 | 1219 |
| 709 | Ecosystem management | 1 | 2 | 1083 | 1633 |
| 709 | Health | 1 | 2 | 2845 | 3826 |
| 709 | big data | 2 | 2 | 843 | 1885 |
| 709 | Structural Equation Modeling | 1 | 2 | 206 | 337 |
| 709 | men | 1 | 2 | 594 | 1008 |
| 709 | Metallography | 1 | 2 | 1242 | 1717 |
| 709 | crops | 1 | 2 | 264 | 501 |
| 709 | wetland management | 1 | 2 | 360 | 724 |
| 709 | India | 1 | 2 | 2462 | 3085 |
| 709 | Exercise | 3 | 2 | 1451 | 2743 |
| 723 | Nuclear Fusion | 1 | 1 | 793 | 1120 |
| 723 | Child | 1 | 1 | 2707 | 3616 |
| 723 | Carcinogenesis | 1 | 1 | 1247 | 1810 |
| 723 | Electromagnetic waves | 1 | 1 | 586 | 980 |
| 723 | Happiness | 1 | 1 | 870 | 1513 |
| 723 | visualization | 2 | 1 | 1559 | 2311 |
| 723 | Medical innovations | 1 | 1 | 1246 | 1933 |
| 723 | feeding behavior | 1 | 1 | 1090 | 1686 |
| 723 | industrial relations | 1 | 1 | 1315 | 1913 |
| 723 | Quality of life | 1 | 1 | 2082 | 3058 |
| 723 | drinking water | 1 | 1 | 269 | 648 |
| 723 | Employee rights | 1 | 1 | 195 | 391 |
| 723 | mental processes | 1 | 1 | 594 | 910 |
| 723 | energy development | 1 | 1 | 1510 | 2354 |
| 723 | mammals | 1 | 1 | 1389 | 1987 |
| 723 | World Wide Web | 2 | 1 | 557 | 1417 |
| 723 | hygiene | 1 | 1 | 861 | 1472 |
| 723 | Appetite | 1 | 1 | 978 | 1551 |
| 723 | children | 1 | 1 | 792 | 1281 |
| 742 | Mechanical Engineering | 1 | 0 | 3033 | 3843 |
| 742 | Paleoecology | 1 | 0 | 1401 | 1899 |
| 742 | Children's Literature | 1 | 0 | 205 | 397 |
| 742 | Cartography | 1 | 0 | 828 | 1277 |
| 742 | Dyslexia | 1 | 0 | 301 | 551 |
| 742 | micromechanics | 1 | 0 | 946 | 1401 |
| 742 | Organic Geochemistry | 1 | 0 | 537 | 868 |
| 742 | Logic Programming | 1 | 0 | 529 | 772 |
| 742 | Semiotics | 1 | 0 | 713 | 1059 |
| 742 | Knowledge | 1 | 0 | 715 | 994 |
| 742 | Emotion | 1 | 0 | 407 | 759 |
| 742 | Hospitality industry | 1 | 0 | 812 | 1559 |
| 742 | Solutions | 2 | 0 | 519 | 1138 |
| 742 | geological modeling | 1 | 0 | 939 | 1586 |
| 742 | psychotherapy | 1 | 0 | 1696 | 2436 |
| 742 | Food preferences | 1 | 0 | 665 | 1147 |
| 742 | Approximation Theory | 2 | 0 | 571 | 1067 |
| 742 | Fluorescence | 1 | 0 | 936 | 1538 |
| 742 | Europe | 1 | 0 | 3652 | 4804 |
| 742 | Insect biochemistry | 1 | 0 | 709 | 1127 |