| 1 | Chemistry | 990 | 29.9K | 411 | 569 |
| 2 | Chemical Engineering | 494 | 16.0K | 174 | 249 |
| 3 | Catalysis | 363 | 12.5K | 187 | 271 |
| 4 | Materials | 543 | 12.3K | 309 | 523 |
| 5 | Biochemical Engineering | 204 | 7.6K | 189 | 339 |
| 6 | Nanotechnology | 238 | 7.4K | 439 | 603 |
| 7 | Physics | 252 | 7.1K | 1072 | 1382 |
| 8 | Materials Science | 278 | 6.7K | 305 | 493 |
| 9 | Surface Chemistry | 275 | 6.4K | 194 | 339 |
| 10 | Biocompatible Materials | 143 | 6.1K | 430 | 509 |
| 11 | Colloids | 252 | 6.0K | 243 | 398 |
| 12 | Electrochemistry | 249 | 5.6K | 336 | 353 |
| 13 | Biochemistry | 220 | 5.3K | 1109 | 1279 |
| 14 | Analytical Chemistry | 191 | 5.0K | 415 | 512 |
| 15 | Polymers | 322 | 5.0K | 313 | 525 |
| 16 | Pollution | 123 | 4.8K | 685 | 800 |
| 17 | polymerization | 286 | 4.6K | 256 | 453 |
| 18 | Nanostructured Materials | 131 | 3.9K | 341 | 428 |
| 19 | Biology | 57 | 3.6K | 1924 | 1713 |
| 20 | Systems Engineering | 50 | 3.5K | 307 | 102 |
| 21 | Ecology | 89 | 3.3K | 1073 | 1197 |
| 22 | environmental protection | 112 | 3.3K | 247 | 368 |
| 23 | Environment | 96 | 3.3K | 722 | 1040 |
| 24 | Optical materials | 101 | 3.2K | 276 | 394 |
| 25 | environmental pollution | 87 | 3.2K | 646 | 717 |
| 26 | Organic Chemistry | 134 | 3.2K | 310 | 418 |
| 27 | Solitons | 61 | 2.8K | 45 | 20 |
| 27 | Fractals | 61 | 2.8K | 45 | 20 |
| 27 | Chaos | 61 | 2.8K | 45 | 20 |
| 30 | coal | 118 | 2.8K | 72 | 159 |
| 31 | Science | 63 | 2.8K | 2015 | 2013 |
| 32 | Industrial Engineering | 79 | 2.7K | 164 | 170 |
| 33 | Biotechnology | 121 | 2.5K | 760 | 1220 |
| 34 | Biomass Energy | 86 | 2.5K | 213 | 425 |
| 35 | Signal Processing | 66 | 2.5K | 452 | 427 |
| 36 | Bioorganic chemistry | 109 | 2.4K | 263 | 416 |
| 37 | Environmental Health | 72 | 2.4K | 919 | 1037 |
| 38 | Energy Conversion | 35 | 2.3K | 249 | 307 |
| 39 | Molecular Biology | 52 | 2.3K | 1888 | 1704 |
| 40 | Biomedical Engineering | 111 | 2.3K | 661 | 907 |
| 41 | Environmental monitoring | 53 | 2.3K | 719 | 730 |
| 42 | nanoscience | 59 | 2.2K | 551 | 654 |
| 43 | Physical organic chemistry | 86 | 2.1K | 47 | 70 |
| 44 | Environmental Chemistry | 28 | 1.9K | 458 | 434 |
| 45 | Biophysics | 33 | 1.9K | 1676 | 1251 |
| 46 | actuators | 50 | 1.9K | 385 | 376 |
| 46 | transducers | 50 | 1.9K | 385 | 376 |
| 48 | Nanoparticles | 75 | 1.8K | 156 | 265 |
| 49 | Technology | 78 | 1.8K | 576 | 631 |
| 50 | Green Chemistry | 59 | 1.8K | 240 | 390 |
| 51 | Electronics | 73 | 1.6K | 614 | 608 |
| 52 | Membranes | 43 | 1.6K | 368 | 453 |
| 53 | China | 76 | 1.5K | 334 | 339 |
| 54 | Bioengineering | 67 | 1.5K | 760 | 1135 |
| 55 | Toxicology | 33 | 1.5K | 1335 | 1108 |
| 56 | Solar Energy | 46 | 1.3K | 199 | 323 |
| 57 | Building Materials | 46 | 1.3K | 332 | 523 |
| 58 | Magnetic Materials | 40 | 1.3K | 281 | 252 |
| 59 | Optics | 57 | 1.3K | 1053 | 903 |
| 60 | Energy Policy | 73 | 1.3K | 304 | 799 |
| 61 | Water | 25 | 1.2K | 774 | 784 |
| 62 | Sustainable Engineering | 50 | 1.2K | 200 | 372 |
| 63 | Solid State Chemistry | 71 | 1.2K | 388 | 506 |
| 64 | Environmental Management | 40 | 1.2K | 634 | 894 |
| 65 | Environmental Engineering | 48 | 1.1K | 742 | 983 |
| 66 | Nanostructures | 54 | 1.1K | 206 | 509 |
| 67 | Microbiology | 35 | 1.1K | 1763 | 1854 |
| 68 | lasers | 42 | 1.1K | 435 | 361 |
| 69 | Environmental Toxicology | 21 | 1.1K | 752 | 625 |
| 70 | Pharmacology | 38 | 1.1K | 1403 | 1419 |
| 71 | Natural history | 5 | 1.1K | 2249 | 1721 |
| 72 | clay | 35 | 1.1K | 72 | 126 |
| 73 | Environmental pollutants | 20 | 1.1K | 704 | 505 |
| 74 | Metals | 46 | 1.0K | 413 | 540 |
| 75 | environmental exposure | 19 | 1.0K | 583 | 406 |
| 76 | pollutants | 16 | 1.0K | 663 | 433 |
| 77 | Automation | 13 | 1.0K | 1104 | 690 |
| 78 | Pharmaceutical Technology | 28 | 970 | 344 | 335 |
| 79 | catalytic activity | 27 | 968 | 99 | 126 |
| 80 | Water pollution | 29 | 927 | 824 | 917 |
| 81 | Artificial Intelligence | 34 | 908 | 1102 | 1130 |
| 82 | energy conservation | 22 | 877 | 590 | 726 |
| 83 | Biosensors | 19 | 868 | 403 | 474 |
| 84 | fuel cells | 29 | 831 | 293 | 476 |
| 85 | Organometallic chemistry | 68 | 817 | 182 | 345 |
| 86 | mass transfer | 35 | 813 | 413 | 544 |
| 87 | Bioelectronics | 17 | 796 | 350 | 450 |
| 88 | Energy Storage | 34 | 778 | 212 | 359 |
| 89 | Solid State Physics | 56 | 763 | 1035 | 1251 |
| 90 | Nanochemistry | 41 | 746 | 91 | 142 |
| 91 | Composite Materials | 32 | 727 | 799 | 1068 |
| 92 | Engineering | 68 | 709 | 688 | 1124 |
| 93 | Medicine | 36 | 706 | 2611 | 3040 |
| 94 | sanitation | 13 | 688 | 632 | 742 |
| 95 | Electrochemical Analysis | 38 | 680 | 297 | 443 |
| 96 | Heat Exchangers | 25 | 676 | 294 | 421 |
| 97 | Electrical Engineering | 17 | 673 | 1402 | 728 |
| 98 | solar cells | 23 | 647 | 161 | 292 |
| 99 | Computational Biology | 18 | 624 | 869 | 818 |
| 100 | Bioinformatics | 16 | 616 | 794 | 698 |
| 101 | Image Processing | 33 | 610 | 586 | 832 |
| 102 | Renewable Energy Sources | 20 | 600 | 975 | 1506 |
| 103 | Carbon | 10 | 591 | 661 | 647 |
| 104 | Tribology | 30 | 589 | 230 | 316 |
| 105 | Petroleum Engineering | 39 | 588 | 115 | 160 |
| 106 | Research | 42 | 580 | 2202 | 2894 |
| 107 | solar power | 21 | 574 | 149 | 288 |
| 108 | Photonics | 19 | 569 | 752 | 813 |
| 109 | carbon monoxide | 4 | 568 | 261 | 64 |
| 110 | Agricultural Chemistry | 23 | 558 | 656 | 829 |
| 110 | pigments | 33 | 558 | 115 | 203 |
| 112 | System analysis | 22 | 553 | 805 | 774 |
| 113 | Mathematics | 90 | 540 | 1363 | 1868 |
| 114 | Nuclear Physics | 32 | 531 | 1568 | 1699 |
| 115 | Numerical Analysis | 9 | 523 | 1477 | 669 |
| 116 | Neural circuitry | 26 | 522 | 535 | 782 |
| 117 | Zeolites | 22 | 510 | 213 | 340 |
| 118 | Environmental Policy | 21 | 508 | 1098 | 1550 |
| 119 | Metallurgy | 46 | 500 | 467 | 766 |
| 120 | Catalysts | 42 | 495 | 42 | 160 |
| 121 | Calorimetry | 28 | 468 | 193 | 245 |
| 121 | Thermal analysis | 28 | 468 | 193 | 245 |
| 123 | Drug delivery systems | 20 | 457 | 471 | 730 |
| 124 | Ocean Engineering | 17 | 446 | 697 | 723 |
| 125 | Mechanical Engineering | 44 | 444 | 522 | 723 |
| 126 | Combustion | 26 | 416 | 337 | 507 |
| 127 | Multimedia Systems | 29 | 404 | 405 | 560 |
| 128 | Microbial Ecology | 7 | 403 | 1299 | 1228 |
| 129 | Cognitive Science | 8 | 382 | 897 | 732 |
| 129 | natural gas | 10 | 382 | 133 | 115 |
| 131 | Robotics | 19 | 380 | 618 | 734 |
| 131 | Organometallic compounds | 33 | 380 | 271 | 547 |
| 133 | Economics | 17 | 364 | 1836 | 1631 |
| 134 | Pharmaceutical Chemistry | 35 | 362 | 1049 | 1683 |
| 135 | Intelligent Transportation Systems | 15 | 361 | 397 | 570 |
| 136 | Land use | 4 | 357 | 949 | 498 |
| 137 | synthesis | 25 | 356 | 166 | 185 |
| 138 | Chemical analysis | 27 | 355 | 196 | 492 |
| 139 | miniaturization | 37 | 353 | 394 | 1007 |
| 140 | Fracture mechanics | 26 | 344 | 427 | 616 |
| 141 | Chemical industry | 30 | 342 | 261 | 385 |
| 142 | Metallography | 25 | 330 | 152 | 322 |
| 143 | Control Theory | 13 | 328 | 871 | 737 |
| 144 | Luminescence | 16 | 316 | 463 | 454 |
| 145 | Electromagnetism | 12 | 315 | 463 | 411 |
| 146 | Electrophoresis | 30 | 310 | 349 | 754 |
| 146 | Spectrum analysis | 17 | 310 | 1909 | 2097 |
| 146 | Molecular structure | 14 | 310 | 1098 | 1091 |
| 149 | Photochemistry | 15 | 306 | 666 | 818 |
| 149 | Photobiology | 15 | 306 | 449 | 617 |
| 151 | Surface-Active Agents | 13 | 305 | 377 | 618 |
| 151 | Surface properties | 13 | 305 | 417 | 685 |
| 153 | Manufacturing Processes | 16 | 304 | 956 | 1129 |
| 154 | Immunopharmacology | 9 | 294 | 523 | 479 |
| 155 | Immunotherapy | 8 | 292 | 924 | 976 |
| 155 | cytokines | 8 | 292 | 624 | 656 |
| 157 | machinery | 15 | 286 | 239 | 269 |
| 158 | Molecular Pharmacology | 10 | 282 | 356 | 494 |
| 159 | Cellulose | 14 | 280 | 156 | 292 |
| 160 | Astrophysics | 20 | 278 | 1353 | 1649 |
| 161 | Statistical physics | 17 | 270 | 1533 | 1694 |
| 162 | Technological Innovations | 9 | 268 | 487 | 504 |
| 163 | Industrial Microbiology | 11 | 265 | 901 | 1218 |
| 164 | Quantum electronics | 5 | 263 | 1242 | 691 |
| 165 | Crystal growth | 10 | 259 | 527 | 520 |
| 166 | Detectors | 20 | 256 | 459 | 725 |
| 166 | Chromatographic analysis | 20 | 256 | 614 | 809 |
| 168 | Wireless Communication Systems | 12 | 248 | 1218 | 1206 |
| 169 | Ceramic materials | 21 | 239 | 380 | 677 |
| 170 | Fiber Optics | 3 | 237 | 882 | 447 |
| 171 | vibration | 8 | 232 | 691 | 657 |
| 172 | Adaptive control systems | 2 | 226 | 754 | 188 |
| 173 | Plastics | 24 | 225 | 461 | 832 |
| 174 | Water quality management | 14 | 222 | 723 | 883 |
| 175 | Quantum Gravity | 13 | 221 | 1145 | 1252 |
| 176 | Astronomy | 26 | 219 | 1017 | 1610 |
| 176 | Hazardous waste | 6 | 219 | 621 | 828 |
| 178 | Genetic engineering | 6 | 216 | 1312 | 1241 |
| 179 | Information Science | 8 | 215 | 1578 | 1675 |
| 180 | Production Engineering | 8 | 214 | 1194 | 993 |
| 181 | radioactive waste | 5 | 213 | 577 | 780 |
| 181 | industrial waste | 5 | 213 | 601 | 782 |
| 181 | internet | 8 | 213 | 920 | 962 |
| 184 | Cancer | 2 | 212 | 2465 | 1709 |
| 185 | Chemical kinetics | 21 | 211 | 117 | 168 |
| 186 | Structural dynamics | 4 | 210 | 823 | 725 |
| 187 | Porous materials | 15 | 209 | 168 | 264 |
| 188 | Aquaculture | 2 | 206 | 1552 | 832 |
| 189 | Internet of Things | 5 | 205 | 834 | 770 |
| 189 | particles | 12 | 205 | 354 | 497 |
| 191 | Medical Laboratory Science | 7 | 202 | 1193 | 1381 |
| 192 | Dynamics | 8 | 201 | 998 | 740 |
| 193 | Waste management | 14 | 200 | 512 | 692 |
| 194 | Boundary Value Problems | 9 | 199 | 376 | 366 |
| 195 | Water Purification | 12 | 198 | 462 | 551 |
| 195 | Chromatography | 19 | 198 | 525 | 848 |
| 197 | Antenna Arrays | 6 | 196 | 366 | 338 |
| 198 | Cytology | 10 | 195 | 1960 | 2401 |
| 199 | energy development | 5 | 194 | 568 | 592 |
| 200 | Entropy | 9 | 191 | 551 | 462 |
| 200 | econometric models | 4 | 191 | 532 | 372 |
| 202 | Computational Complexity | 8 | 186 | 581 | 376 |
| 203 | Cell Biology | 10 | 184 | 1826 | 2366 |
| 204 | Ceramics | 9 | 183 | 796 | 762 |
| 205 | Nonlinear Dynamics | 4 | 178 | 1566 | 1203 |
| 206 | Informatics | 6 | 174 | 561 | 544 |
| 207 | Bifurcation Theory | 2 | 172 | 350 | 109 |
| 208 | Business Ethics | 1 | 171 | 1552 | 1032 |
| 209 | Medical Oncology | 1 | 170 | 1769 | 1028 |
| 210 | Rock Mechanics | 9 | 165 | 492 | 636 |
| 211 | Measurement | 10 | 164 | 674 | 854 |
| 212 | Physical Chemistry | 10 | 163 | 1205 | 1440 |
| 212 | Social Change | 3 | 163 | 1038 | 1038 |
| 214 | soil microbiology | 4 | 162 | 1157 | 1309 |
| 215 | Medical genetics | 1 | 161 | 2283 | 1577 |
| 215 | Cytogenetics | 1 | 161 | 1613 | 1012 |
| 217 | software | 4 | 158 | 903 | 832 |
| 218 | Oncology | 2 | 157 | 1938 | 1669 |
| 218 | Public Health | 3 | 157 | 3951 | 2937 |
| 220 | Environmental Microbiology | 3 | 156 | 1248 | 1177 |
| 221 | International Finance | 8 | 155 | 1064 | 1185 |
| 221 | nucleic acids | 2 | 155 | 1507 | 1231 |
| 223 | Botany | 5 | 151 | 2635 | 2591 |
| 224 | Analytical Biochemistry | 15 | 148 | 661 | 1136 |
| 225 | Operations Research | 6 | 144 | 1576 | 1528 |
| 226 | genome | 1 | 143 | 1852 | 1223 |
| 227 | Bioenergetics | 6 | 142 | 543 | 694 |
| 228 | Granular materials | 10 | 141 | 209 | 428 |
| 228 | Nonlinear systems | 2 | 141 | 739 | 367 |
| 230 | computer networks | 15 | 140 | 1087 | 1751 |
| 231 | Computer Graphics | 7 | 134 | 1135 | 1181 |
| 231 | Clinical Chemistry | 9 | 134 | 1368 | 1847 |
| 233 | Power Electronics | 7 | 132 | 692 | 891 |
| 233 | Ferroelectricity | 15 | 132 | 421 | 496 |
| 235 | Nutrition | 5 | 131 | 2708 | 2757 |
| 235 | finance | 7 | 131 | 1604 | 1581 |
| 237 | soil conservation | 9 | 128 | 333 | 632 |
| 237 | phase diagrams | 29 | 128 | 23 | 68 |
| 239 | Systems Analysis | 7 | 127 | 710 | 763 |
| 239 | Radio waves | 4 | 127 | 710 | 692 |
| 239 | Radio | 4 | 127 | 1165 | 1088 |
| 242 | Thermodynamics | 40 | 126 | 149 | 648 |
| 242 | drug development | 5 | 126 | 582 | 913 |
| 244 | Epidemiology | 2 | 125 | 3138 | 2216 |
| 245 | Medical Microbiology | 1 | 124 | 2381 | 1690 |
| 245 | Microorganisms | 1 | 124 | 1407 | 986 |
| 247 | Geophysics | 11 | 122 | 1703 | 2287 |
| 248 | Sustainable Development | 16 | 120 | 689 | 1782 |
| 249 | free radicals | 1 | 112 | 1640 | 1296 |
| 250 | Economic History | 10 | 111 | 1765 | 2024 |
| 251 | Microelectronics | 7 | 110 | 1115 | 1407 |
| 252 | management | 6 | 108 | 2442 | 2806 |
| 253 | Mathematical Physics | 17 | 107 | 1322 | 1846 |
| 253 | Emulsions | 16 | 107 | 63 | 168 |
| 255 | Engineering Geology | 8 | 106 | 830 | 1171 |
| 255 | Molecular Spectroscopy | 9 | 106 | 1068 | 1464 |
| 257 | Agricultural Engineering | 3 | 105 | 437 | 400 |
| 257 | Nondestructive testing | 4 | 105 | 568 | 499 |
| 257 | Metallic Glasses | 10 | 105 | 185 | 370 |
| 257 | soil pollution | 8 | 105 | 201 | 420 |
| 257 | Biomass | 9 | 105 | 264 | 770 |
| 262 | Psychology | 6 | 104 | 3210 | 3189 |
| 262 | rehabilitation | 5 | 104 | 1527 | 1637 |
| 264 | Neurology | 3 | 103 | 3315 | 3130 |
| 264 | dietary supplements | 4 | 103 | 713 | 829 |
| 266 | Plant Ecology | 1 | 102 | 2240 | 1626 |
| 266 | carcinogens | 1 | 102 | 1315 | 835 |
| 266 | Radiation effects | 1 | 102 | 1048 | 689 |
| 269 | Neurobiology | 1 | 101 | 1890 | 1416 |
| 269 | Nervous system | 6 | 101 | 1497 | 1868 |
| 271 | drugs | 10 | 100 | 1005 | 1547 |
| 272 | Soil Mechanics | 5 | 99 | 805 | 912 |
| 272 | Human-Computer Interaction | 9 | 99 | 826 | 1346 |
| 274 | Signal Transduction | 1 | 98 | 1714 | 1330 |
| 274 | Chemical processes | 12 | 98 | 174 | 411 |
| 274 | cell interaction | 1 | 98 | 1353 | 1011 |
| 277 | Tunneling | 3 | 97 | 326 | 392 |
| 277 | underground construction | 3 | 97 | 326 | 392 |
| 279 | Metabolism | 2 | 95 | 2060 | 1945 |
| 280 | plasma spraying | 9 | 94 | 89 | 183 |
| 281 | Bioremediation | 9 | 93 | 320 | 926 |
| 282 | Nanoelectronics | 3 | 91 | 752 | 505 |
| 282 | Structural health monitoring | 2 | 91 | 258 | 231 |
| 282 | Plant physiology | 3 | 91 | 1884 | 1983 |
| 282 | structural stability | 2 | 91 | 389 | 358 |
| 282 | Food | 9 | 91 | 1777 | 2715 |
| 287 | Neuropsychology | 7 | 90 | 1360 | 1826 |
| 287 | Food additives | 2 | 90 | 1264 | 1210 |
| 287 | hydrocolloids | 2 | 90 | 745 | 890 |
| 290 | Pharmacy | 6 | 87 | 1356 | 1769 |
| 291 | Semiconductor industry | 2 | 85 | 681 | 424 |
| 292 | Physiology | 5 | 83 | 2686 | 3150 |
| 292 | Fuzzy systems | 15 | 83 | 579 | 1241 |
| 294 | Brain | 6 | 82 | 1642 | 2140 |
| 294 | Telecommunication | 6 | 82 | 1831 | 2081 |
| 294 | multimedia | 1 | 82 | 809 | 579 |
| 294 | Interactive multimedia | 1 | 82 | 949 | 619 |
| 298 | biological factors | 6 | 80 | 1329 | 1739 |
| 298 | Capital market | 2 | 80 | 578 | 496 |
| 300 | Cognitive neuroscience | 2 | 78 | 1032 | 1023 |
| 300 | Neuroplasticity | 2 | 78 | 322 | 335 |
| 300 | human development | 2 | 78 | 936 | 868 |
| 303 | Mining Engineering | 2 | 77 | 645 | 487 |
| 303 | food technology | 10 | 77 | 1347 | 2446 |
| 305 | Imaging systems | 11 | 76 | 260 | 534 |
| 306 | drug evaluation | 4 | 75 | 1033 | 1231 |
| 307 | Optical Communications | 2 | 74 | 927 | 650 |
| 308 | Solar power plants | 2 | 73 | 212 | 220 |
| 308 | Photovoltaic Cells | 2 | 73 | 213 | 221 |
| 310 | Medical innovations | 1 | 70 | 1246 | 1225 |
| 311 | Hydrology | 4 | 69 | 1958 | 2110 |
| 312 | Food Safety | 1 | 68 | 576 | 245 |
| 312 | electric vehicles | 2 | 68 | 383 | 358 |
| 312 | food contamination | 1 | 68 | 1658 | 940 |
| 312 | food handling | 1 | 68 | 1447 | 1171 |
| 312 | mathematical analysis | 12 | 68 | 1417 | 1785 |
| 317 | Civil Engineering | 5 | 67 | 1158 | 1057 |
| 317 | Respiratory system | 1 | 67 | 752 | 614 |
| 317 | cell physiology | 4 | 67 | 1104 | 1534 |
| 317 | Respiration | 1 | 67 | 1731 | 1372 |
| 321 | Mechanics | 9 | 66 | 719 | 1103 |
| 322 | Soil Science | 4 | 65 | 1542 | 1880 |
| 322 | Nanotubes | 12 | 65 | 24 | 102 |
| 324 | Marine Biology | 3 | 64 | 2150 | 2304 |
| 324 | Telecommunication Systems | 8 | 64 | 980 | 1422 |
| 324 | Marine Pollution | 3 | 64 | 1146 | 1443 |
| 324 | Agriculture | 4 | 64 | 1715 | 1962 |
| 328 | Structural optimization | 2 | 63 | 429 | 421 |
| 328 | Mineral resources | 2 | 63 | 833 | 885 |
| 330 | Fluid Dynamics | 5 | 62 | 832 | 1063 |
| 331 | Microstructure | 5 | 61 | 665 | 780 |
| 332 | Systems Biology | 3 | 60 | 1287 | 1515 |
| 332 | Microscopy | 4 | 60 | 1189 | 1222 |
| 334 | Neurophysiology | 6 | 58 | 1754 | 2556 |
| 335 | Immunology | 2 | 57 | 2603 | 2596 |
| 335 | Condensed Matter | 6 | 57 | 2031 | 2458 |
| 335 | United States | 4 | 57 | 3666 | 3871 |
| 338 | Diagnostic Imaging | 10 | 56 | 883 | 1569 |
| 338 | Thermochemistry | 6 | 56 | 349 | 545 |
| 338 | East Asia | 3 | 56 | 633 | 511 |
| 338 | Earth Sciences | 5 | 56 | 2380 | 2849 |
| 338 | proteins | 8 | 56 | 1136 | 1859 |
| 338 | Soil ecology | 3 | 56 | 755 | 1033 |
| 344 | air quality management | 2 | 55 | 665 | 681 |
| 345 | Geology | 4 | 54 | 2180 | 2446 |
| 345 | Biodegradation | 6 | 54 | 451 | 1081 |
| 345 | Quantum Optics | 3 | 54 | 888 | 858 |
| 345 | Atomic spectroscopy | 3 | 54 | 1083 | 1099 |
| 345 | Laser Spectroscopy | 3 | 54 | 841 | 816 |
| 350 | Drug design | 10 | 53 | 731 | 1695 |
| 350 | Child welfare | 1 | 53 | 1664 | 1092 |
| 350 | Aerosols | 2 | 53 | 615 | 587 |
| 350 | Adolescent | 1 | 53 | 2685 | 1934 |
| 350 | Iron | 2 | 53 | 364 | 295 |
| 350 | Social work | 1 | 53 | 1994 | 1215 |
| 356 | Radiography | 1 | 52 | 1020 | 947 |
| 356 | Medical Physics | 2 | 52 | 1540 | 1517 |
| 358 | Microbial Biotechnology | 3 | 51 | 1028 | 1361 |
| 358 | Thin Films | 7 | 51 | 264 | 503 |
| 358 | Semiconductors | 12 | 51 | 1063 | 2007 |
| 358 | Adhesion | 6 | 51 | 428 | 769 |
| 358 | adhesives | 6 | 51 | 459 | 777 |
| 363 | Drug targeting | 2 | 50 | 402 | 582 |
| 363 | Bioinorganic chemistry | 3 | 50 | 1328 | 1526 |
| 365 | Econometrics | 2 | 49 | 1566 | 1250 |
| 365 | Mental Health | 2 | 49 | 1740 | 1615 |
| 365 | Transportation | 4 | 49 | 1351 | 1725 |
| 365 | Computational Fluid Dynamics | 4 | 49 | 532 | 770 |
| 365 | commerce | 3 | 49 | 1577 | 1742 |
| 370 | Nuclear Chemistry | 4 | 48 | 920 | 921 |
| 370 | Radiochemistry | 4 | 48 | 826 | 817 |
| 370 | Raman spectroscopy | 1 | 48 | 1277 | 981 |
| 373 | Computer Vision | 3 | 47 | 1111 | 1368 |
| 373 | peptides | 7 | 47 | 427 | 895 |
| 373 | Glass | 4 | 47 | 875 | 1189 |
| 373 | pottery | 4 | 47 | 836 | 1155 |
| 377 | isomerism | 9 | 46 | 111 | 384 |
| 377 | Chirality | 9 | 46 | 111 | 384 |
| 379 | Pathology | 1 | 45 | 2126 | 1927 |
| 379 | Diagnosis | 1 | 45 | 666 | 469 |
| 381 | Urban Transportation | 2 | 44 | 166 | 134 |
| 382 | Adsorption | 3 | 42 | 200 | 322 |
| 382 | Pesticides | 2 | 42 | 812 | 828 |
| 384 | Nuclear Engineering | 2 | 41 | 1554 | 1338 |
| 384 | Earthquake Engineering | 3 | 41 | 1239 | 1556 |
| 384 | Genomics | 3 | 41 | 2411 | 2969 |
| 384 | Soil dynamics | 3 | 41 | 519 | 701 |
| 384 | Chromosome mapping | 3 | 41 | 1481 | 2085 |
| 384 | Eastern Europe | 2 | 41 | 1142 | 766 |
| 384 | plant molecular biology | 2 | 41 | 1546 | 1967 |
| 384 | gene mapping | 3 | 41 | 1607 | 2259 |
| 384 | Plants | 2 | 41 | 2103 | 2233 |
| 393 | Biometrics | 2 | 40 | 1072 | 1032 |
| 393 | Plant cells | 2 | 40 | 1057 | 1555 |
| 395 | Fluid Mechanics | 10 | 39 | 818 | 1581 |
| 395 | Water quality | 4 | 39 | 130 | 357 |
| 395 | Water chemistry | 4 | 39 | 214 | 508 |
| 398 | Biopharmaceutics | 5 | 38 | 765 | 1421 |
| 398 | Environmental Law | 1 | 38 | 1497 | 1675 |
| 398 | Herbal medicine | 2 | 38 | 898 | 1333 |
| 398 | Host-parasite interactions | 1 | 38 | 1507 | 1586 |
| 398 | Japan | 4 | 38 | 1502 | 1902 |
| 398 | Virulence | 1 | 38 | 1283 | 1465 |
| 398 | Immunity | 1 | 38 | 1881 | 1940 |
| 405 | Biogeography | 1 | 37 | 1340 | 1382 |
| 405 | environmental indicators | 2 | 37 | 1345 | 1780 |
| 405 | elasticity | 2 | 37 | 301 | 301 |
| 405 | ecosystem | 1 | 37 | 1785 | 1810 |
| 405 | Asia | 6 | 37 | 1981 | 2848 |
| 410 | School Psychology | 1 | 36 | 724 | 673 |
| 410 | Educational Psychology | 1 | 36 | 2003 | 1666 |
| 410 | Multiphase Flow | 3 | 36 | 387 | 604 |
| 410 | Diet | 1 | 36 | 2362 | 2458 |
| 410 | Cement | 2 | 36 | 683 | 947 |
| 410 | Heterocyclic compounds | 3 | 36 | 1009 | 1065 |
| 416 | Psychiatry | 2 | 35 | 3518 | 3648 |
| 416 | Geriatric Psychiatry | 2 | 35 | 1032 | 1215 |
| 416 | Soft Condensed Matter | 3 | 35 | 1012 | 1366 |
| 416 | Cell differentiation | 2 | 35 | 1352 | 1768 |
| 416 | Petroleum | 4 | 35 | 208 | 279 |
| 416 | biopolymers | 3 | 35 | 1100 | 1482 |
| 422 | Geomorphology | 2 | 34 | 1484 | 1826 |
| 422 | biofuels | 1 | 34 | 474 | 717 |
| 422 | Alloys | 8 | 34 | 113 | 252 |
| 422 | United Kingdom | 1 | 34 | 1919 | 1665 |
| 422 | plant communities | 1 | 34 | 1410 | 1510 |
| 422 | natural disasters | 2 | 34 | 1515 | 1813 |
| 428 | Geriatrics | 2 | 33 | 2655 | 2677 |
| 428 | Pharmacognosy | 3 | 33 | 1728 | 2472 |
| 428 | Mental Health Services | 1 | 33 | 1573 | 1416 |
| 428 | Gerontology | 1 | 33 | 2500 | 1903 |
| 428 | Physical fitness | 1 | 33 | 1493 | 1355 |
| 428 | sustainable forestry | 3 | 33 | 93 | 123 |
| 434 | Mobile Computing | 3 | 32 | 1079 | 1345 |
| 434 | natural products | 4 | 32 | 1557 | 2074 |
| 434 | Industry | 1 | 32 | 433 | 623 |
| 437 | Biomechanics | 4 | 31 | 1067 | 1690 |
| 437 | Ultrasonics | 1 | 31 | 1764 | 1862 |
| 437 | Sonochemistry | 1 | 31 | 1107 | 1368 |
| 440 | Materials Engineering | 6 | 30 | 439 | 988 |
| 440 | Computational Intelligence | 5 | 30 | 455 | 966 |
| 440 | Molecules | 6 | 30 | 1085 | 1576 |
| 440 | Protective coatings | 4 | 30 | 109 | 202 |
| 440 | India | 5 | 30 | 1051 | 1439 |
| 445 | Cybernetics | 4 | 29 | 1317 | 2021 |
| 445 | Mechatronics | 4 | 29 | 765 | 1311 |
| 445 | Operator theory | 1 | 29 | 818 | 426 |
| 445 | Genetic regulation | 2 | 29 | 1097 | 1416 |
| 445 | explosives | 6 | 29 | 90 | 188 |
| 445 | drug toxicity | 3 | 29 | 470 | 962 |
| 451 | Cloud Computing | 2 | 28 | 442 | 676 |
| 451 | Neurochemistry | 2 | 28 | 2133 | 2579 |
| 451 | Environmental Geology | 1 | 28 | 2246 | 2162 |
| 451 | Algebra | 8 | 28 | 998 | 1298 |
| 451 | Friction | 2 | 28 | 143 | 306 |
| 451 | Intelligent Control Systems | 9 | 28 | 558 | 1332 |
| 457 | Genetics | 2 | 27 | 3145 | 3678 |
| 457 | Genetic Toxicology | 2 | 27 | 527 | 876 |
| 457 | mutation | 2 | 27 | 635 | 935 |
| 457 | Regeneration | 2 | 27 | 85 | 142 |
| 457 | Plant diseases | 3 | 27 | 1717 | 2163 |
| 462 | Social Sciences | 10 | 26 | 1872 | 3674 |
| 462 | Humanities | 10 | 26 | 875 | 2125 |
| 462 | Mineralogy | 4 | 26 | 1076 | 1566 |
| 462 | Virtual reality | 1 | 26 | 754 | 682 |
| 462 | Substance Abuse | 2 | 26 | 1415 | 1675 |
| 462 | Ventilation | 6 | 26 | 290 | 821 |
| 462 | drug therapy | 2 | 26 | 1678 | 2028 |
| 462 | textile fibers | 5 | 26 | 295 | 645 |
| 462 | health planning | 7 | 26 | 1432 | 2723 |
| 462 | wood | 4 | 26 | 380 | 640 |
| 472 | Computer Engineering | 4 | 25 | 834 | 1474 |
| 473 | ethnicity | 1 | 24 | 1182 | 860 |
| 474 | land degradation | 1 | 23 | 886 | 1004 |
| 474 | indoor air pollution | 4 | 23 | 276 | 734 |
| 474 | Sick building syndrome | 4 | 23 | 276 | 734 |
| 474 | Fluorescence | 1 | 23 | 936 | 765 |
| 474 | degradation | 1 | 23 | 886 | 1004 |
| 479 | Computer Science | 2 | 22 | 2411 | 2546 |
| 479 | Structural Engineering | 1 | 22 | 2049 | 1955 |
| 479 | Nuclear Fusion | 1 | 22 | 793 | 707 |
| 479 | Molecular cloning | 3 | 22 | 1314 | 1965 |
| 479 | Genetic recombination | 3 | 22 | 1296 | 1943 |
| 479 | Lightweight concrete | 1 | 22 | 700 | 1011 |
| 479 | Library Science | 1 | 22 | 1584 | 1166 |
| 479 | concrete | 1 | 22 | 1311 | 1506 |
| 479 | Recombinant DNA | 3 | 22 | 1360 | 2020 |
| 479 | fusion reactors | 1 | 22 | 607 | 489 |
| 489 | Stochastic Processes | 1 | 21 | 1440 | 1284 |
| 489 | emergency management | 1 | 21 | 1139 | 1209 |
| 489 | consumer behavior | 1 | 21 | 973 | 1121 |
| 489 | Medicinal plants | 2 | 21 | 1587 | 2297 |
| 489 | food industry | 4 | 21 | 623 | 1294 |
| 489 | enzymes | 3 | 21 | 1351 | 2119 |
| 489 | Egypt | 1 | 21 | 1125 | 1227 |
| 496 | Transnational corporations | 1 | 20 | 809 | 910 |
| 496 | Parenteral nutrition | 1 | 20 | 1208 | 1382 |
| 496 | Stem cells | 1 | 20 | 1532 | 1734 |
| 496 | cloning | 1 | 20 | 779 | 989 |
| 500 | Nuclear Energy | 1 | 19 | 1460 | 1250 |
| 500 | Highway Engineering | 1 | 19 | 635 | 694 |
| 500 | Industrial Safety | 3 | 19 | 1159 | 1782 |
| 500 | Plasma chemistry | 5 | 19 | 278 | 720 |
| 500 | Crystallography | 2 | 19 | 1784 | 1596 |
| 500 | visualization | 2 | 19 | 1559 | 1345 |
| 500 | nuclear power | 1 | 19 | 725 | 581 |
| 500 | Textile industry | 3 | 19 | 478 | 669 |
| 508 | Medical Technology | 5 | 18 | 1097 | 2357 |
| 508 | Differential Equations | 5 | 18 | 848 | 1322 |
| 508 | Crystallization | 1 | 18 | 790 | 655 |
| 508 | Mass Spectrometry | 1 | 18 | 1469 | 1502 |
| 508 | Sensor Networks | 5 | 18 | 152 | 468 |
| 508 | Edible plants | 1 | 18 | 490 | 655 |
| 508 | Fossil fuels | 4 | 18 | 55 | 78 |
| 508 | Liposomes | 3 | 18 | 589 | 1020 |
| 508 | Chemical structure | 1 | 18 | 1019 | 864 |
| 508 | Steroids | 2 | 18 | 994 | 1428 |
| 518 | Sociology | 9 | 17 | 1699 | 3882 |
| 518 | Polymer Engineering | 4 | 17 | 62 | 245 |
| 518 | Engineering Mathematics | 9 | 17 | 1059 | 2348 |
| 518 | Digital electronics | 2 | 17 | 420 | 453 |
| 518 | Sustainable agriculture | 1 | 17 | 1250 | 1390 |
| 518 | Biological Systems | 1 | 17 | 953 | 1093 |
| 518 | Integrated Circuits | 7 | 17 | 498 | 954 |
| 518 | marketing | 2 | 17 | 2154 | 2759 |
| 518 | Enzyme | 2 | 17 | 663 | 1174 |
| 518 | Recycling | 1 | 17 | 1024 | 1522 |
| 528 | Urban Planning | 1 | 16 | 696 | 869 |
| 528 | Information Systems | 3 | 16 | 1370 | 2291 |
| 528 | Structural design | 2 | 16 | 1038 | 1379 |
| 528 | Atmospheric Physics | 1 | 16 | 1881 | 2074 |
| 528 | community development | 1 | 16 | 1020 | 1078 |
| 528 | Energy Harvesting | 1 | 16 | 650 | 916 |
| 528 | Housing | 1 | 16 | 837 | 1011 |
| 528 | Safety management | 3 | 16 | 598 | 1174 |
| 528 | Population | 1 | 16 | 1379 | 1547 |
| 528 | Decision making | 2 | 16 | 1687 | 2310 |
| 538 | Combinatorial optimization | 3 | 15 | 535 | 812 |
| 538 | Wireless Communication | 1 | 15 | 832 | 852 |
| 538 | economic policy | 2 | 15 | 2563 | 2832 |
| 538 | Evolutionary Computation | 2 | 15 | 622 | 1086 |
| 538 | Business | 2 | 15 | 2477 | 3250 |
| 538 | Taste | 1 | 15 | 581 | 717 |
| 538 | flavor | 1 | 15 | 405 | 567 |
| 538 | Cell cycle | 1 | 15 | 500 | 657 |
| 538 | Optoelectronic devices | 2 | 15 | 1216 | 1385 |
| 538 | smell | 1 | 15 | 581 | 717 |
| 538 | cell proliferation | 1 | 15 | 534 | 683 |
| 538 | economic analysis | 2 | 15 | 314 | 629 |
| 538 | drug abuse | 2 | 15 | 722 | 1060 |
| 538 | Australia | 2 | 15 | 2054 | 2616 |
| 552 | Nursing | 1 | 14 | 2630 | 2552 |
| 552 | Data Mining | 2 | 14 | 1924 | 2690 |
| 552 | Social Psychology | 3 | 14 | 2081 | 3134 |
| 552 | Food Preservation | 1 | 14 | 1297 | 1376 |
| 552 | Natural resources | 3 | 14 | 699 | 1363 |
| 552 | Solutions | 2 | 14 | 519 | 726 |
| 552 | Refractory materials | 5 | 14 | 82 | 180 |
| 552 | Microwaves | 3 | 14 | 1216 | 1638 |
| 552 | biomedicine | 1 | 14 | 872 | 1155 |
| 552 | extraterrestrial environment | 1 | 14 | 933 | 1013 |
| 552 | astronomical phenomena | 1 | 14 | 863 | 950 |
| 552 | Cerebral cortex | 2 | 14 | 926 | 1376 |
| 564 | Information Theory | 2 | 13 | 1509 | 1903 |
| 564 | Computational Linguistics | 2 | 13 | 745 | 966 |
| 564 | Emerging infectious diseases | 1 | 13 | 532 | 766 |
| 564 | hazard mitigation | 1 | 13 | 1573 | 1898 |
| 564 | curriculum evaluation | 1 | 13 | 698 | 802 |
| 564 | Algae | 1 | 13 | 1043 | 1202 |
| 564 | electrocatalysis | 2 | 13 | 136 | 351 |
| 571 | sustainability | 2 | 12 | 1079 | 1803 |
| 571 | clay minerals | 2 | 12 | 345 | 663 |
| 573 | Meteorology | 1 | 11 | 2589 | 3055 |
| 573 | Hydrogeology | 2 | 11 | 794 | 1298 |
| 573 | Clinical Psychology | 1 | 11 | 1559 | 1858 |
| 573 | Community Psychology | 1 | 11 | 898 | 1130 |
| 573 | Regional Planning | 1 | 11 | 2084 | 2321 |
| 573 | Geothermal Energy | 2 | 11 | 326 | 666 |
| 573 | Continuum Mechanics | 3 | 11 | 160 | 407 |
| 573 | atmosphere | 1 | 11 | 1162 | 1460 |
| 573 | city planning | 2 | 11 | 1825 | 2570 |
| 582 | Genetic algorithms | 1 | 10 | 544 | 795 |
| 582 | Welding | 1 | 10 | 472 | 465 |
| 584 | Rural Development | 1 | 9 | 898 | 1128 |
| 584 | Optoelectronics | 2 | 9 | 672 | 913 |
| 584 | Number Theory | 1 | 9 | 1267 | 1175 |
| 584 | Gene expression regulation | 1 | 9 | 1323 | 1673 |
| 584 | Autoantibodies | 1 | 9 | 735 | 1023 |
| 584 | Autoimmunity | 1 | 9 | 886 | 1229 |
| 584 | protein | 1 | 9 | 1567 | 1877 |
| 584 | Autoimmune diseases | 1 | 9 | 809 | 1147 |
| 584 | Fibers | 2 | 9 | 134 | 216 |
| 584 | Biodiversity | 3 | 9 | 2014 | 3234 |
| 594 | Political Science | 1 | 8 | 2322 | 2204 |
| 594 | Horticulture | 2 | 8 | 890 | 1500 |
| 594 | Psychopharmacology | 1 | 8 | 1720 | 2107 |
| 594 | Feminist theory | 1 | 8 | 399 | 448 |
| 594 | Soil biology | 1 | 8 | 1229 | 1672 |
| 594 | Investment analysis | 1 | 8 | 1583 | 1805 |
| 594 | Gender identity | 1 | 8 | 585 | 651 |
| 594 | starch | 1 | 8 | 588 | 816 |
| 594 | crops | 2 | 8 | 167 | 369 |
| 594 | women | 1 | 8 | 1473 | 1554 |
| 604 | Rheumatology | 1 | 7 | 1268 | 1543 |
| 604 | Evolutionary Genetics | 1 | 7 | 1124 | 1562 |
| 604 | Molecular Epidemiology | 1 | 7 | 1124 | 1562 |
| 604 | Sports Medicine | 2 | 7 | 2502 | 3153 |
| 604 | Nanobiotechnology | 1 | 7 | 727 | 1207 |
| 604 | Fixed Point Theory | 2 | 7 | 376 | 578 |
| 604 | Sports | 2 | 7 | 2237 | 2825 |
| 604 | Sound | 1 | 7 | 1542 | 1698 |
| 604 | toxicity testing | 1 | 7 | 1012 | 1490 |
| 613 | Education | 2 | 6 | 3853 | 4933 |
| 613 | Marine Engineering | 2 | 6 | 316 | 530 |
| 613 | Orthopedics | 1 | 6 | 1637 | 2004 |
| 613 | Functional Analysis | 1 | 6 | 1892 | 2054 |
| 613 | Naval Architecture | 2 | 6 | 376 | 681 |
| 613 | Orthopedic Surgery | 1 | 6 | 1003 | 1250 |
| 613 | Nonlinear functional analysis | 2 | 6 | 1428 | 1977 |
| 613 | Hormones | 1 | 6 | 1538 | 2039 |
| 613 | Monomers | 1 | 6 | 164 | 319 |
| 613 | Hydrocarbons | 2 | 6 | 140 | 298 |
| 613 | Aging | 1 | 6 | 2989 | 3494 |
| 624 | Pediatrics | 1 | 5 | 2493 | 3093 |
| 624 | Cryptography | 1 | 5 | 1127 | 1223 |
| 624 | Animal Behavior | 1 | 5 | 2280 | 2981 |
| 624 | health services accessibility | 1 | 5 | 1389 | 1907 |
| 624 | Liquid Crystals | 2 | 5 | 1063 | 1421 |
| 624 | Socioeconomic Factors | 1 | 5 | 1252 | 1905 |
| 624 | Ethology | 1 | 5 | 1820 | 2465 |
| 624 | Swarm Intelligence | 1 | 5 | 585 | 926 |
| 624 | Pharmacy management | 1 | 5 | 464 | 680 |
| 624 | alcohol | 1 | 5 | 163 | 257 |
| 634 | Information Technology | 3 | 4 | 2460 | 4247 |
| 634 | Obstetrics | 1 | 4 | 2351 | 3004 |
| 634 | Food Science | 1 | 4 | 460 | 806 |
| 634 | Nanomedicine | 2 | 4 | 303 | 971 |
| 634 | Occupational Health | 2 | 4 | 1185 | 2060 |
| 634 | Electromagnetic compatibility | 1 | 4 | 549 | 773 |
| 634 | industrial hygiene | 2 | 4 | 1190 | 2028 |
| 634 | diffusion | 3 | 4 | 329 | 553 |
| 634 | Powder Metallurgy | 2 | 4 | 285 | 539 |
| 634 | Smart Materials | 1 | 4 | 1485 | 1953 |
| 634 | Chemical safety | 2 | 4 | 53 | 137 |
| 634 | acupuncture | 1 | 4 | 408 | 483 |
| 634 | Massage therapy | 1 | 4 | 75 | 62 |
| 634 | North America | 2 | 4 | 976 | 1725 |
| 634 | Electromagnetic fields | 1 | 4 | 721 | 879 |
| 634 | Cheminformatics | 1 | 4 | 571 | 932 |
| 634 | Psychophysiology | 1 | 4 | 3016 | 3769 |
| 634 | Pregnancy | 1 | 4 | 1251 | 1774 |
| 652 | Geriatric Nursing | 1 | 3 | 943 | 1334 |
| 652 | Developmental Psychology | 2 | 3 | 1170 | 2112 |
| 652 | Forecasting | 1 | 3 | 950 | 1323 |
| 652 | Flow Visualization | 2 | 3 | 78 | 133 |
| 652 | Molecular recognition | 1 | 3 | 450 | 839 |
| 652 | Bacteriology | 1 | 3 | 2127 | 2904 |
| 652 | personality | 2 | 3 | 1670 | 2743 |
| 652 | Genetic markers | 1 | 3 | 513 | 892 |
| 652 | Social behavior | 2 | 3 | 1336 | 2329 |
| 652 | Export Marketing | 1 | 3 | 448 | 800 |
| 652 | biochemical markers | 1 | 3 | 1008 | 1542 |
| 652 | World Wide Web | 1 | 3 | 839 | 1245 |
| 664 | Neuropsychiatry | 1 | 2 | 1061 | 1513 |
| 664 | Educational Technology | 1 | 2 | 2570 | 3676 |
| 664 | Remote Sensing | 1 | 2 | 2196 | 2765 |
| 664 | Geochemistry | 1 | 2 | 2340 | 3118 |
| 664 | Geographic information systems | 1 | 2 | 1756 | 2493 |
| 664 | Risk assessment | 1 | 2 | 1158 | 1881 |
| 664 | Immunotoxicology | 1 | 2 | 580 | 963 |
| 664 | Scheduling | 1 | 2 | 274 | 492 |
| 664 | Production Scheduling | 1 | 2 | 274 | 492 |
| 664 | Happiness | 1 | 2 | 870 | 1462 |
| 664 | Microfluidics | 1 | 2 | 403 | 699 |
| 664 | Turbulence | 1 | 2 | 399 | 622 |
| 664 | Cosmochemistry | 1 | 2 | 1217 | 1784 |
| 664 | water supply | 2 | 2 | 977 | 1879 |
| 664 | Roads | 1 | 2 | 965 | 1409 |
| 664 | Quality of life | 1 | 2 | 2082 | 3000 |
| 664 | Therapeutics | 1 | 2 | 1862 | 2626 |
| 664 | amino acids | 1 | 2 | 965 | 1520 |
| 664 | Chemical reactors | 2 | 2 | 222 | 586 |
| 664 | Developing countries | 1 | 2 | 3207 | 4132 |
| 664 | Aquatic ecology | 1 | 2 | 1356 | 1895 |
| 685 | Histology | 1 | 1 | 2212 | 2938 |
| 685 | Health Education | 1 | 1 | 2451 | 3333 |
| 685 | Plate Tectonics | 1 | 1 | 477 | 733 |
| 685 | health behavior | 1 | 1 | 1279 | 1943 |
| 685 | Green Technology | 1 | 1 | 869 | 1620 |
| 685 | preventive medicine | 1 | 1 | 1535 | 2276 |
| 685 | Radiation | 1 | 1 | 2798 | 3630 |
| 685 | Health | 1 | 1 | 2845 | 3939 |
| 685 | Supramolecular chemistry | 1 | 1 | 501 | 861 |
| 685 | Hydraulic machinery | 1 | 1 | 106 | 188 |
| 685 | Noise control | 1 | 1 | 486 | 418 |
| 685 | Spectroscopy | 1 | 1 | 367 | 660 |
| 685 | Child psychology | 1 | 1 | 1877 | 2639 |
| 685 | Health promotion | 1 | 1 | 1628 | 2370 |
| 685 | Groundwater | 1 | 1 | 840 | 1401 |
| 685 | bioluminescence | 2 | 1 | 499 | 1229 |
| 685 | Plasma polymerization | 1 | 1 | 452 | 758 |
| 685 | Exercise | 1 | 1 | 2190 | 2866 |
| 703 | Natural Sciences | 1 | 0 | 255 | 531 |
| 703 | Systems Theory | 1 | 0 | 814 | 1463 |
| 703 | Applied Mathematics | 1 | 0 | 594 | 948 |
| 703 | Architecture | 1 | 0 | 897 | 1264 |
| 703 | American Literature | 2 | 0 | 800 | 952 |
| 703 | Landscape Architecture | 1 | 0 | 337 | 631 |
| 703 | Tissue Engineering | 2 | 0 | 440 | 1014 |
| 703 | Quantum Mechanics | 1 | 0 | 361 | 606 |
| 703 | Expert Systems | 1 | 0 | 531 | 1073 |
| 703 | Bioprinting | 1 | 0 | 102 | 278 |
| 703 | Shock Waves | 1 | 0 | 324 | 551 |
| 703 | Sulfur | 1 | 0 | 245 | 580 |
| 703 | applications | 1 | 0 | 136 | 317 |