| 1 | Chemistry | 1,197 | 52.6K | 330 | 379 |
| 2 | Nanotechnology | 941 | 48.2K | 84 | 114 |
| 3 | Physics | 2,244 | 44.7K | 180 | 530 |
| 4 | Materials | 841 | 41.7K | 176 | 176 |
| 5 | Electronics | 1,606 | 31.6K | 4 | 27 |
| 6 | Optics | 1,172 | 25.9K | 58 | 63 |
| 7 | Polymers | 667 | 25.6K | 136 | 120 |
| 8 | Materials Science | 550 | 24.6K | 140 | 152 |
| 9 | polymerization | 575 | 22.6K | 104 | 84 |
| 10 | Biocompatible Materials | 385 | 21.6K | 146 | 144 |
| 11 | Biology | 179 | 15.8K | 998 | 812 |
| 12 | nanoscience | 264 | 15.1K | 107 | 126 |
| 13 | Biotechnology | 249 | 14.7K | 413 | 342 |
| 14 | Photonics | 565 | 14.4K | 14 | 59 |
| 15 | Signal Processing | 524 | 13.9K | 44 | 103 |
| 16 | Solid State Physics | 696 | 13.2K | 153 | 272 |
| 17 | Biomedical Engineering | 357 | 12.1K | 171 | 202 |
| 18 | Science | 187 | 12.1K | 1060 | 954 |
| 19 | Wireless Communication Systems | 423 | 12.0K | 37 | 62 |
| 20 | Molecular Biology | 200 | 12.0K | 905 | 733 |
| 21 | Nanostructured Materials | 269 | 11.4K | 133 | 130 |
| 22 | Bioengineering | 155 | 11.4K | 359 | 275 |
| 23 | Catalysis | 243 | 11.3K | 320 | 299 |
| 24 | Condensed Matter | 509 | 10.9K | 202 | 322 |
| 25 | Microelectronics | 325 | 10.4K | 32 | 98 |
| 26 | Image Processing | 274 | 10.2K | 55 | 86 |
| 27 | Optical materials | 180 | 9.6K | 149 | 127 |
| 28 | nucleic acids | 49 | 9.6K | 334 | 146 |
| 29 | Electrochemistry | 1,011 | 9.4K | 35 | 201 |
| 30 | Telecommunication | 350 | 9.3K | 69 | 146 |
| 31 | miniaturization | 119 | 9.0K | 127 | 117 |
| 32 | mass transfer | 242 | 9.0K | 31 | 37 |
| 33 | Energy Policy | 56 | 8.8K | 402 | 85 |
| 34 | Technology | 1,133 | 8.7K | 14 | 140 |
| 35 | Quantum electronics | 450 | 8.6K | 4 | 23 |
| 36 | lasers | 487 | 8.6K | 11 | 28 |
| 37 | Analytical Chemistry | 218 | 8.3K | 358 | 319 |
| 38 | Nuclear Physics | 258 | 7.2K | 612 | 612 |
| 39 | Chemical Engineering | 116 | 7.1K | 738 | 514 |
| 40 | Nanostructures | 64 | 7.0K | 165 | 87 |
| 41 | Microwaves | 323 | 6.9K | 21 | 29 |
| 42 | Radio | 114 | 6.7K | 122 | 99 |
| 43 | Transportation | 105 | 6.5K | 148 | 78 |
| 44 | Biochemistry | 223 | 6.5K | 1098 | 1157 |
| 45 | Education | 90 | 6.4K | 510 | 188 |
| 46 | Semiconductors | 481 | 6.3K | 5 | 16 |
| 47 | computer networks | 275 | 6.2K | 37 | 83 |
| 48 | Environment | 65 | 6.1K | 925 | 725 |
| 49 | Medicine | 198 | 5.9K | 1069 | 1150 |
| 50 | energy resources | 28 | 5.6K | 291 | 70 |
| 51 | Artificial Intelligence | 152 | 5.5K | 254 | 286 |
| 52 | Cybernetics | 120 | 5.3K | 71 | 101 |
| 53 | management | 107 | 5.1K | 392 | 425 |
| 54 | Behavior | 78 | 4.9K | 496 | 405 |
| 55 | Energy Conversion | 44 | 4.8K | 190 | 168 |
| 56 | Computer Graphics | 142 | 4.7K | 91 | 107 |
| 57 | Research | 159 | 4.7K | 1062 | 1027 |
| 58 | actuators | 196 | 4.7K | 58 | 117 |
| 58 | transducers | 196 | 4.7K | 58 | 117 |
| 60 | Biomass Energy | 37 | 4.7K | 523 | 231 |
| 61 | Information Science | 143 | 4.5K | 97 | 136 |
| 62 | proteins | 41 | 4.4K | 396 | 134 |
| 63 | Manufacturing Processes | 175 | 4.3K | 112 | 140 |
| 64 | Production Management | 43 | 4.2K | 148 | 100 |
| 65 | Natural history | 4 | 4.2K | 2474 | 1001 |
| 66 | Process Control | 41 | 4.1K | 77 | 33 |
| 67 | Radio waves | 98 | 4.1K | 78 | 75 |
| 68 | protein | 34 | 4.1K | 218 | 80 |
| 69 | Colloids | 106 | 4.1K | 573 | 559 |
| 70 | Automation | 110 | 4.0K | 231 | 290 |
| 71 | Surface Chemistry | 92 | 4.0K | 645 | 518 |
| 72 | Renewable Energy Sources | 22 | 3.9K | 901 | 391 |
| 73 | Logistics | 34 | 3.9K | 41 | 5 |
| 74 | Environmental Chemistry | 30 | 3.7K | 432 | 250 |
| 75 | Mathematics | 250 | 3.7K | 690 | 595 |
| 76 | Water | 75 | 3.7K | 338 | 388 |
| 77 | Biophysics | 92 | 3.7K | 1014 | 877 |
| 78 | Mobile Computing | 109 | 3.7K | 31 | 40 |
| 79 | Power Electronics | 84 | 3.6K | 105 | 121 |
| 80 | Water pollution | 77 | 3.5K | 372 | 356 |
| 80 | Fiber Optics | 153 | 3.5K | 27 | 52 |
| 82 | Statistical physics | 192 | 3.5K | 408 | 526 |
| 83 | human behavior | 53 | 3.5K | 465 | 422 |
| 84 | Pollution | 74 | 3.4K | 1015 | 1021 |
| 85 | Ecology | 71 | 3.4K | 1241 | 1190 |
| 86 | Operations Research | 117 | 3.3K | 150 | 201 |
| 87 | Microwave devices | 124 | 3.3K | 8 | 12 |
| 88 | Biosensors | 54 | 3.2K | 126 | 134 |
| 89 | Computational Biology | 82 | 3.2K | 266 | 330 |
| 90 | microwave communication systems | 114 | 3.2K | 5 | 8 |
| 91 | Earthquake Engineering | 60 | 3.2K | 228 | 147 |
| 92 | Optical Communications | 106 | 3.2K | 18 | 14 |
| 93 | Bioelectronics | 52 | 3.1K | 91 | 112 |
| 94 | Production Engineering | 149 | 3.1K | 81 | 88 |
| 95 | Medical Laboratory Science | 40 | 3.1K | 375 | 249 |
| 96 | Bioinformatics | 70 | 3.0K | 240 | 270 |
| 97 | Control Theory | 100 | 2.9K | 162 | 147 |
| 98 | System analysis | 180 | 2.8K | 56 | 168 |
| 99 | Optoelectronic devices | 149 | 2.8K | 4 | 2 |
| 100 | Composite Materials | 72 | 2.8K | 436 | 471 |
| 101 | Educational Technology | 47 | 2.7K | 154 | 61 |
| 102 | Quality Control | 97 | 2.7K | 50 | 68 |
| 103 | United States | 56 | 2.7K | 983 | 643 |
| 104 | Social Change | 46 | 2.6K | 39 | 55 |
| 105 | environmental pollution | 53 | 2.6K | 958 | 848 |
| 106 | Spectrum analysis | 88 | 2.5K | 792 | 857 |
| 107 | Nanoparticles | 61 | 2.4K | 196 | 204 |
| 108 | Metallurgy | 89 | 2.4K | 272 | 317 |
| 109 | Biochemical Engineering | 44 | 2.4K | 793 | 844 |
| 110 | Environmental monitoring | 47 | 2.4K | 802 | 705 |
| 111 | Detectors | 85 | 2.4K | 71 | 59 |
| 112 | Magnetic Materials | 66 | 2.3K | 150 | 141 |
| 113 | Organic Chemistry | 78 | 2.3K | 560 | 552 |
| 114 | Engineering | 92 | 2.2K | 505 | 453 |
| 115 | Quantum Gravity | 73 | 2.2K | 572 | 557 |
| 116 | Solid State Chemistry | 180 | 2.2K | 115 | 272 |
| 117 | Microbiology | 75 | 2.2K | 1187 | 1382 |
| 118 | Electromagnetism | 39 | 2.2K | 155 | 65 |
| 119 | Glass | 52 | 2.2K | 131 | 119 |
| 120 | Ceramics | 55 | 2.2K | 171 | 133 |
| 121 | pottery | 51 | 2.2K | 132 | 118 |
| 122 | Heat Exchangers | 59 | 2.1K | 104 | 122 |
| 123 | Physical Chemistry | 64 | 2.0K | 363 | 417 |
| 124 | Information Theory | 64 | 2.0K | 161 | 184 |
| 125 | Astrophysics | 32 | 2.0K | 1117 | 911 |
| 126 | Statistics | 95 | 1.9K | 369 | 384 |
| 127 | Tourism | 28 | 1.9K | 356 | 290 |
| 128 | Combinatorial chemistry | 53 | 1.9K | 57 | 104 |
| 129 | Immunity | 25 | 1.8K | 527 | 544 |
| 130 | Systems Engineering | 82 | 1.8K | 161 | 240 |
| 131 | Multimedia Systems | 91 | 1.7K | 93 | 130 |
| 132 | Information Technology | 71 | 1.7K | 180 | 348 |
| 132 | solar cells | 49 | 1.7K | 56 | 89 |
| 134 | Parallel Processing | 43 | 1.6K | 40 | 62 |
| 135 | Structural dynamics | 39 | 1.6K | 168 | 190 |
| 136 | Solar Energy | 44 | 1.6K | 210 | 255 |
| 137 | Mechanical Engineering | 106 | 1.6K | 208 | 261 |
| 138 | Ocean Engineering | 35 | 1.6K | 436 | 321 |
| 139 | Computer Vision | 31 | 1.6K | 215 | 236 |
| 140 | Immunology | 6 | 1.5K | 1837 | 802 |
| 141 | finance | 64 | 1.5K | 338 | 386 |
| 142 | Economics | 76 | 1.5K | 830 | 813 |
| 143 | fuel cells | 39 | 1.5K | 224 | 314 |
| 144 | Electrical Engineering | 251 | 1.5K | 144 | 400 |
| 145 | solar power | 39 | 1.5K | 59 | 92 |
| 146 | Telecommunication Systems | 123 | 1.5K | 35 | 100 |
| 147 | Simulation Methods | 46 | 1.5K | 31 | 17 |
| 148 | Computer-Aided Design | 51 | 1.4K | 127 | 145 |
| 149 | Carbon | 19 | 1.4K | 411 | 333 |
| 150 | internet | 33 | 1.4K | 287 | 256 |
| 151 | Liquid Crystals | 96 | 1.4K | 56 | 33 |
| 152 | Nanoelectronics | 129 | 1.4K | 10 | 31 |
| 152 | Entrepreneurship | 3 | 1.4K | 1015 | 265 |
| 154 | Educational Psychology | 10 | 1.4K | 752 | 320 |
| 155 | Structural Engineering | 30 | 1.4K | 453 | 305 |
| 156 | Environmental Health | 36 | 1.4K | 1472 | 1377 |
| 157 | Small Business | 1 | 1.4K | 1149 | 214 |
| 158 | Cell Biology | 17 | 1.4K | 1485 | 1199 |
| 159 | Intelligent Transportation Systems | 38 | 1.4K | 157 | 189 |
| 160 | Bioorganic chemistry | 36 | 1.4K | 763 | 655 |
| 161 | energy development | 3 | 1.4K | 825 | 187 |
| 162 | Nonlinear Dynamics | 80 | 1.3K | 341 | 488 |
| 163 | Solitons | 34 | 1.3K | 143 | 67 |
| 163 | Fractals | 34 | 1.3K | 143 | 67 |
| 163 | Chaos | 34 | 1.3K | 143 | 67 |
| 166 | Medical Physics | 21 | 1.3K | 537 | 381 |
| 167 | energy conservation | 17 | 1.3K | 731 | 559 |
| 168 | Aerosols | 50 | 1.3K | 60 | 77 |
| 168 | technical education | 22 | 1.3K | 108 | 18 |
| 170 | Technological Innovations | 27 | 1.3K | 132 | 77 |
| 171 | Integrated Circuits | 103 | 1.3K | 6 | 5 |
| 172 | Numerical Analysis | 117 | 1.3K | 124 | 313 |
| 173 | Environmental Engineering | 42 | 1.3K | 822 | 926 |
| 173 | marketing | 17 | 1.3K | 805 | 506 |
| 175 | Immunotherapy | 2 | 1.3K | 1654 | 453 |
| 176 | Immune system | 3 | 1.3K | 778 | 352 |
| 177 | micromechanics | 49 | 1.2K | 47 | 69 |
| 178 | Energy Storage | 25 | 1.2K | 297 | 247 |
| 179 | Business Ethics | 14 | 1.2K | 359 | 293 |
| 180 | Internet of Things | 31 | 1.2K | 215 | 219 |
| 181 | Chemical analysis | 22 | 1.2K | 252 | 118 |
| 182 | Semiconductor industry | 108 | 1.2K | 10 | 29 |
| 183 | Boundary Value Problems | 23 | 1.2K | 168 | 80 |
| 183 | Antenna Arrays | 23 | 1.2K | 131 | 76 |
| 185 | Robotics | 80 | 1.2K | 143 | 324 |
| 186 | Engineering Geology | 33 | 1.2K | 312 | 292 |
| 187 | Genomics | 35 | 1.2K | 753 | 749 |
| 187 | Mathematical Physics | 67 | 1.2K | 586 | 631 |
| 189 | Quantum Optics | 61 | 1.1K | 49 | 97 |
| 190 | Communication | 76 | 1.1K | 237 | 481 |
| 191 | Water quality management | 59 | 1.1K | 166 | 235 |
| 192 | health planning | 53 | 1.1K | 272 | 299 |
| 193 | Chromosome mapping | 32 | 1.1K | 370 | 443 |
| 193 | gene mapping | 32 | 1.1K | 432 | 517 |
| 195 | Business | 12 | 1.1K | 1084 | 752 |
| 196 | Cytology | 19 | 1.0K | 1500 | 1344 |
| 197 | educational innovations | 15 | 1.0K | 135 | 44 |
| 198 | multimedia | 27 | 1.0K | 97 | 98 |
| 198 | Interactive multimedia | 27 | 1.0K | 105 | 98 |
| 200 | Food service management | 7 | 982 | 203 | 96 |
| 201 | Metals | 52 | 969 | 369 | 556 |
| 202 | Information Systems | 39 | 924 | 153 | 217 |
| 203 | Social Sciences | 24 | 915 | 1084 | 667 |
| 204 | Psychology | 21 | 910 | 1804 | 1252 |
| 205 | Environmental Policy | 15 | 902 | 1362 | 1118 |
| 206 | Green Chemistry | 27 | 895 | 503 | 649 |
| 207 | Neurology | 22 | 886 | 1627 | 1519 |
| 208 | Photochemistry | 21 | 884 | 505 | 367 |
| 209 | Mechatronics | 39 | 882 | 108 | 153 |
| 210 | Hydrology | 53 | 878 | 403 | 652 |
| 211 | Astronomy | 20 | 867 | 1135 | 1018 |
| 212 | environmental protection | 20 | 863 | 1321 | 1109 |
| 213 | Pharmacology | 27 | 861 | 1645 | 1577 |
| 214 | Crystal growth | 27 | 860 | 205 | 190 |
| 215 | Photobiology | 20 | 859 | 316 | 228 |
| 216 | Hazardous waste | 7 | 853 | 555 | 271 |
| 217 | Plant physiology | 2 | 849 | 2121 | 785 |
| 217 | Atomic spectroscopy | 55 | 849 | 96 | 216 |
| 219 | Laser Spectroscopy | 54 | 847 | 47 | 108 |
| 220 | Plant Ecology | 1 | 843 | 2240 | 624 |
| 220 | plant molecular biology | 1 | 843 | 1924 | 624 |
| 220 | Plants | 1 | 843 | 2550 | 693 |
| 223 | Pharmaceutical Chemistry | 27 | 840 | 1202 | 1180 |
| 224 | Sustainable Engineering | 24 | 836 | 432 | 504 |
| 225 | Asia | 50 | 829 | 342 | 399 |
| 225 | industrial waste | 7 | 829 | 486 | 255 |
| 227 | Mass Spectrometry | 26 | 827 | 295 | 266 |
| 228 | Differential Equations | 32 | 825 | 207 | 168 |
| 229 | Geophysics | 35 | 824 | 1006 | 1119 |
| 230 | Neural circuitry | 39 | 823 | 343 | 561 |
| 231 | Ergonomics | 16 | 813 | 335 | 183 |
| 232 | radioactive waste | 4 | 805 | 676 | 264 |
| 233 | Waste management | 41 | 803 | 171 | 204 |
| 234 | Environmental Management | 13 | 802 | 1376 | 1156 |
| 235 | Higher Education | 8 | 795 | 320 | 69 |
| 236 | Instructional systems | 7 | 794 | 56 | 7 |
| 237 | concrete | 11 | 782 | 439 | 372 |
| 238 | Gerontology | 11 | 772 | 905 | 408 |
| 239 | Database Management | 26 | 769 | 185 | 200 |
| 240 | Project Management | 9 | 767 | 110 | 107 |
| 241 | Energy Harvesting | 7 | 764 | 242 | 216 |
| 242 | Fluid Dynamics | 34 | 760 | 226 | 270 |
| 243 | Water Purification | 38 | 753 | 129 | 173 |
| 244 | Sound | 28 | 751 | 221 | 181 |
| 245 | Cancer | 18 | 714 | 1091 | 1112 |
| 246 | Computational Fluid Dynamics | 25 | 711 | 104 | 110 |
| 247 | Speech Perception | 28 | 702 | 37 | 97 |
| 247 | auditory perception | 28 | 702 | 44 | 105 |
| 249 | Computer Science | 67 | 695 | 141 | 317 |
| 250 | Corporate governance | 7 | 688 | 291 | 78 |
| 251 | Clinical Chemistry | 19 | 678 | 944 | 929 |
| 252 | Hydraulic Engineering | 27 | 673 | 225 | 243 |
| 253 | Geodesy | 13 | 657 | 205 | 106 |
| 253 | Liver diseases | 3 | 657 | 1006 | 603 |
| 255 | Measurement | 34 | 654 | 219 | 271 |
| 256 | Systems Analysis | 79 | 652 | 24 | 178 |
| 257 | Mass Media | 15 | 651 | 246 | 61 |
| 258 | Physical organic chemistry | 28 | 647 | 330 | 365 |
| 259 | Psychometrics | 17 | 639 | 146 | 145 |
| 260 | Computational Chemistry | 13 | 636 | 232 | 208 |
| 261 | Combustion | 36 | 635 | 269 | 384 |
| 262 | Biometrics | 23 | 626 | 315 | 287 |
| 263 | Europe | 13 | 622 | 1319 | 842 |
| 264 | biomedicine | 15 | 617 | 94 | 83 |
| 265 | Soil Mechanics | 18 | 615 | 408 | 391 |
| 266 | Metabolism | 5 | 610 | 1502 | 1009 |
| 267 | machinery | 19 | 602 | 178 | 131 |
| 268 | Toxicology | 26 | 601 | 1517 | 1784 |
| 269 | Genetic engineering | 11 | 599 | 952 | 769 |
| 269 | Speech | 21 | 599 | 257 | 314 |
| 271 | Fuzzy systems | 32 | 593 | 239 | 240 |
| 272 | Interfaces | 44 | 592 | 3 | 16 |
| 273 | Nervous system | 19 | 590 | 862 | 948 |
| 274 | biopolymers | 27 | 585 | 300 | 405 |
| 275 | natural disasters | 15 | 582 | 396 | 365 |
| 276 | visualization | 41 | 581 | 282 | 253 |
| 277 | infection | 22 | 567 | 465 | 594 |
| 278 | Total Quality Management | 27 | 564 | 24 | 52 |
| 279 | Industrial Engineering | 29 | 563 | 433 | 587 |
| 280 | optical devices | 32 | 562 | 24 | 43 |
| 281 | Agricultural Chemistry | 13 | 556 | 994 | 831 |
| 282 | China | 36 | 543 | 628 | 795 |
| 283 | rehabilitation | 19 | 542 | 714 | 740 |
| 284 | Informatics | 5 | 540 | 624 | 224 |
| 285 | Health Information Management | 4 | 531 | 220 | 193 |
| 285 | Luminescence | 22 | 531 | 341 | 265 |
| 287 | mathematical analysis | 58 | 530 | 538 | 725 |
| 288 | Chemical industry | 25 | 528 | 306 | 260 |
| 289 | Social Media | 3 | 522 | 82 | 21 |
| 290 | Human-Computer Interaction | 28 | 521 | 284 | 486 |
| 291 | Evolutionary Computation | 9 | 520 | 170 | 221 |
| 292 | Genetic algorithms | 8 | 516 | 148 | 180 |
| 293 | water supply | 25 | 513 | 227 | 373 |
| 294 | Natural resources | 16 | 506 | 231 | 275 |
| 294 | Hydrodynamics | 16 | 506 | 203 | 216 |
| 296 | Molecular Spectroscopy | 31 | 504 | 396 | 573 |
| 297 | aerosol | 23 | 491 | 70 | 110 |
| 298 | Earth Sciences | 10 | 490 | 1772 | 1250 |
| 299 | Ophthalmology | 4 | 487 | 1264 | 677 |
| 300 | Pharmaceutical Technology | 21 | 483 | 459 | 602 |
| 300 | catalytic activity | 21 | 483 | 140 | 243 |
| 302 | pigments | 18 | 482 | 224 | 235 |
| 303 | Geriatrics | 10 | 480 | 1373 | 952 |
| 303 | Fluid Mechanics | 38 | 480 | 315 | 545 |
| 305 | Environmental Geology | 9 | 468 | 906 | 601 |
| 305 | Environmental Law | 5 | 468 | 766 | 621 |
| 307 | vibration | 40 | 462 | 167 | 413 |
| 308 | Drug delivery systems | 2 | 460 | 1735 | 724 |
| 309 | food handling | 6 | 458 | 539 | 314 |
| 310 | Medical Microbiology | 9 | 456 | 1088 | 1023 |
| 311 | food technology | 7 | 453 | 1620 | 1127 |
| 312 | Nanochemistry | 24 | 442 | 200 | 282 |
| 312 | genome | 17 | 442 | 494 | 762 |
| 314 | Library Science | 6 | 441 | 590 | 98 |
| 315 | Social Psychology | 9 | 439 | 1236 | 975 |
| 316 | biological evolution | 13 | 434 | 890 | 1035 |
| 317 | Computational Intelligence | 28 | 432 | 66 | 122 |
| 318 | International Finance | 20 | 429 | 558 | 684 |
| 319 | Medical Technology | 11 | 426 | 685 | 550 |
| 320 | Pharmacognosy | 9 | 424 | 1037 | 884 |
| 321 | Soil dynamics | 6 | 420 | 324 | 169 |
| 322 | Visual Communication | 31 | 416 | 26 | 58 |
| 322 | Image enhancement | 31 | 416 | 25 | 52 |
| 324 | Virology | 7 | 412 | 1513 | 1414 |
| 325 | Soft Condensed Matter | 20 | 410 | 365 | 459 |
| 326 | Lightweight concrete | 4 | 406 | 348 | 285 |
| 327 | Electronic Packaging | 20 | 397 | 39 | 50 |
| 328 | Child psychology | 5 | 392 | 1031 | 742 |
| 329 | Child Development | 4 | 391 | 1443 | 869 |
| 330 | Biodegradation | 12 | 390 | 192 | 251 |
| 331 | Digital electronics | 32 | 389 | 8 | 9 |
| 332 | Bioremediation | 11 | 386 | 250 | 279 |
| 333 | econometric models | 7 | 382 | 324 | 167 |
| 334 | Teaching | 9 | 381 | 977 | 639 |
| 335 | Dynamics | 26 | 380 | 397 | 469 |
| 335 | Diagnostic Imaging | 19 | 380 | 591 | 708 |
| 335 | Molecular cloning | 7 | 380 | 871 | 561 |
| 335 | Genetic recombination | 7 | 380 | 858 | 552 |
| 335 | Recombinant DNA | 7 | 380 | 919 | 594 |
| 340 | Engineering Mathematics | 24 | 378 | 530 | 592 |
| 340 | Cell differentiation | 6 | 378 | 900 | 878 |
| 342 | Oncogenes | 4 | 376 | 762 | 684 |
| 342 | Cement | 7 | 376 | 340 | 395 |
| 344 | Australia | 6 | 371 | 1173 | 537 |
| 345 | Molecular evolution | 14 | 368 | 579 | 762 |
| 346 | Distance Education | 2 | 363 | 465 | 105 |
| 347 | sanitation | 9 | 361 | 779 | 1009 |
| 348 | Software Engineering | 21 | 358 | 292 | 424 |
| 348 | Methodology | 21 | 358 | 33 | 66 |
| 350 | Meteorology | 2 | 357 | 2104 | 1146 |
| 351 | Research Design | 19 | 355 | 330 | 528 |
| 351 | Liposomes | 19 | 355 | 113 | 253 |
| 351 | Lipid bilayers | 19 | 355 | 93 | 234 |
| 354 | Medical genetics | 8 | 347 | 1178 | 1204 |
| 355 | Membranes | 9 | 345 | 986 | 1008 |
| 356 | Rock Mechanics | 11 | 342 | 432 | 448 |
| 356 | Mycology | 11 | 342 | 749 | 748 |
| 358 | Stochastic Processes | 17 | 339 | 248 | 236 |
| 359 | Growth | 3 | 337 | 933 | 730 |
| 360 | research and development | 9 | 336 | 92 | 146 |
| 361 | Architectural Design | 7 | 334 | 235 | 85 |
| 361 | design | 6 | 334 | 149 | 74 |
| 363 | Public Policy | 10 | 333 | 850 | 772 |
| 363 | Industrial Safety | 9 | 333 | 574 | 447 |
| 365 | Adult Education | 4 | 332 | 516 | 108 |
| 365 | Radiography | 3 | 332 | 658 | 488 |
| 365 | Developmental Biology | 4 | 332 | 1458 | 1077 |
| 365 | Elderly | 5 | 332 | 875 | 266 |
| 365 | older people | 5 | 332 | 1140 | 478 |
| 370 | biocatalysis | 1 | 330 | 300 | 236 |
| 370 | Homogeneous catalysis | 1 | 330 | 300 | 236 |
| 370 | Heterogeneous catalysis | 1 | 330 | 300 | 236 |
| 373 | Physiology | 12 | 327 | 1913 | 1997 |
| 374 | innovation | 7 | 326 | 360 | 453 |
| 375 | Functional Analysis | 32 | 325 | 314 | 519 |
| 375 | Quality Management | 11 | 325 | 35 | 22 |
| 377 | Proteome | 7 | 323 | 652 | 607 |
| 377 | Futures | 19 | 323 | 28 | 67 |
| 379 | Graph Theory | 28 | 317 | 136 | 179 |
| 379 | Metallic Glasses | 11 | 317 | 174 | 182 |
| 379 | Environmental pollutants | 13 | 317 | 978 | 1232 |
| 382 | Combinatorial optimization | 36 | 315 | 15 | 49 |
| 383 | Health Education | 6 | 314 | 1170 | 734 |
| 384 | Medicinal plants | 5 | 313 | 1003 | 802 |
| 385 | United Kingdom | 4 | 311 | 1124 | 753 |
| 386 | personality | 4 | 306 | 1253 | 893 |
| 387 | Genetic regulation | 9 | 304 | 528 | 604 |
| 387 | Medical innovations | 6 | 304 | 543 | 703 |
| 389 | probabilities | 23 | 303 | 479 | 462 |
| 390 | Nonlinear Optics | 7 | 302 | 52 | 29 |
| 391 | Embedded Systems | 23 | 300 | 11 | 46 |
| 392 | Ultrasonics | 5 | 296 | 924 | 693 |
| 392 | Molecules | 28 | 296 | 459 | 651 |
| 392 | Ultrasound | 5 | 296 | 519 | 313 |
| 395 | Corporate Social Responsibility | 1 | 295 | 645 | 175 |
| 395 | environmental auditing | 1 | 295 | 668 | 178 |
| 397 | Electromagnetic compatibility | 10 | 294 | 151 | 107 |
| 398 | Stem cells | 3 | 293 | 1108 | 716 |
| 399 | Data Mining | 8 | 291 | 905 | 796 |
| 399 | Structural design | 20 | 291 | 190 | 366 |
| 399 | Adhesion | 10 | 291 | 245 | 197 |
| 399 | Human Resources | 4 | 291 | 368 | 269 |
| 399 | adhesives | 10 | 291 | 262 | 198 |
| 404 | Superconductors | 24 | 289 | 272 | 306 |
| 405 | Raman spectroscopy | 13 | 286 | 262 | 325 |
| 406 | Bioinorganic chemistry | 11 | 285 | 745 | 730 |
| 407 | Smart Materials | 22 | 284 | 213 | 402 |
| 408 | Combinatorial analysis | 30 | 281 | 214 | 282 |
| 409 | Vocational guidance | 6 | 279 | 604 | 527 |
| 410 | health behavior | 1 | 278 | 1279 | 432 |
| 411 | individual differences | 5 | 277 | 196 | 160 |
| 411 | Roads | 18 | 277 | 253 | 259 |
| 413 | Audiology | 3 | 274 | 687 | 358 |
| 414 | software | 16 | 273 | 310 | 607 |
| 415 | Nonlinear functional analysis | 22 | 272 | 307 | 466 |
| 415 | Electrophysiology | 4 | 272 | 740 | 386 |
| 415 | natural products | 6 | 272 | 1276 | 791 |
| 418 | Ceramic materials | 16 | 269 | 493 | 629 |
| 419 | Genetics | 13 | 268 | 1482 | 1938 |
| 420 | Traffic Engineering | 3 | 267 | 420 | 224 |
| 420 | Plastics | 21 | 267 | 522 | 742 |
| 422 | Solar power plants | 10 | 264 | 57 | 98 |
| 422 | Ferroelectricity | 12 | 264 | 477 | 336 |
| 422 | Photovoltaic Cells | 10 | 264 | 57 | 98 |
| 425 | Computer Architecture | 22 | 263 | 89 | 141 |
| 425 | pollutants | 10 | 263 | 927 | 1168 |
| 425 | hazard mitigation | 8 | 263 | 421 | 411 |
| 428 | Plasma chemistry | 15 | 259 | 97 | 168 |
| 428 | Recycling | 3 | 259 | 598 | 552 |
| 430 | Econometrics | 13 | 258 | 619 | 624 |
| 431 | mycoses | 6 | 255 | 467 | 546 |
| 431 | Imaging systems | 12 | 255 | 237 | 177 |
| 433 | Capital market | 11 | 252 | 127 | 199 |
| 434 | Hearing | 1 | 249 | 940 | 301 |
| 435 | Electrophoresis | 14 | 248 | 667 | 852 |
| 436 | Sensor Networks | 10 | 247 | 61 | 73 |
| 436 | Zeolites | 8 | 247 | 513 | 599 |
| 436 | data collection | 1 | 247 | 1684 | 591 |
| 439 | Multivariate Analysis | 8 | 246 | 303 | 238 |
| 440 | Databases | 5 | 244 | 267 | 199 |
| 441 | Economic History | 22 | 241 | 1171 | 1440 |
| 442 | Technology Assessment | 10 | 238 | 72 | 247 |
| 442 | Microprocessors | 14 | 238 | 174 | 167 |
| 442 | Electrochemical Analysis | 4 | 238 | 1377 | 898 |
| 445 | Bacteriology | 2 | 237 | 1745 | 1183 |
| 446 | Fracture mechanics | 6 | 235 | 986 | 754 |
| 447 | Optoelectronics | 27 | 233 | 64 | 93 |
| 448 | Analytical Biochemistry | 15 | 231 | 661 | 919 |
| 448 | Alternative Medicine | 2 | 231 | 1767 | 798 |
| 448 | complementary therapies | 2 | 231 | 1984 | 831 |
| 451 | Industrial Microbiology | 10 | 225 | 974 | 1319 |
| 451 | Neurophysiology | 7 | 225 | 1641 | 1626 |
| 453 | Telecommunications | 34 | 223 | 37 | 220 |
| 454 | Sociology | 11 | 221 | 1518 | 1519 |
| 454 | Calculus of Variations | 6 | 221 | 376 | 210 |
| 456 | educational planning | 2 | 219 | 522 | 234 |
| 456 | Psychophysiology | 10 | 219 | 1412 | 1649 |
| 458 | Drug design | 11 | 218 | 686 | 913 |
| 458 | biological factors | 4 | 218 | 1622 | 1065 |
| 460 | Nanobiotechnology | 7 | 213 | 180 | 351 |
| 461 | Surgery | 1 | 212 | 1590 | 969 |
| 461 | emergency management | 3 | 212 | 672 | 355 |
| 461 | Microstructure | 22 | 212 | 141 | 277 |
| 461 | coal | 2 | 212 | 1802 | 1200 |
| 465 | Mining Engineering | 5 | 209 | 366 | 296 |
| 466 | Radio wave propagation | 23 | 206 | 165 | 291 |
| 467 | Atmospheric Physics | 3 | 204 | 1332 | 972 |
| 468 | Chromatographic analysis | 10 | 203 | 959 | 921 |
| 469 | Fluorescence | 5 | 202 | 298 | 120 |
| 470 | Entropy | 16 | 201 | 302 | 439 |
| 471 | Metallography | 9 | 200 | 407 | 462 |
| 472 | Computer Engineering | 27 | 197 | 99 | 388 |
| 473 | Neurochemistry | 4 | 196 | 1710 | 1414 |
| 474 | Chromatography | 7 | 195 | 1015 | 856 |
| 475 | Cryptography | 32 | 194 | 49 | 194 |
| 475 | Planets | 7 | 194 | 890 | 1072 |
| 477 | Ultrasonic Imaging | 3 | 192 | 502 | 273 |
| 477 | Reproduction | 9 | 192 | 1183 | 1241 |
| 479 | Psychiatry | 7 | 190 | 2293 | 2202 |
| 480 | Algorithms | 5 | 189 | 535 | 313 |
| 481 | Systems Theory | 4 | 187 | 313 | 78 |
| 482 | Risk assessment | 1 | 185 | 1158 | 241 |
| 482 | Cyberterrorism | 1 | 185 | 118 | 18 |
| 484 | Financial Institutions | 10 | 184 | 94 | 190 |
| 485 | Molecular Pharmacology | 5 | 183 | 587 | 629 |
| 486 | cloning | 1 | 182 | 779 | 536 |
| 487 | Quality of life | 10 | 181 | 653 | 1000 |
| 488 | Molecular Genetics | 7 | 179 | 1069 | 1324 |
| 489 | Thermodynamics | 21 | 178 | 307 | 510 |
| 490 | Critical Care | 1 | 177 | 1443 | 992 |
| 490 | Critical Care Medicine | 1 | 177 | 1368 | 982 |
| 492 | Career development | 5 | 176 | 285 | 177 |
| 492 | Marine resources | 5 | 176 | 456 | 411 |
| 494 | Biomolecules | 7 | 175 | 218 | 361 |
| 495 | Linguistics | 9 | 171 | 768 | 684 |
| 495 | Gene library | 8 | 171 | 29 | 50 |
| 497 | Atmospheric Chemistry | 2 | 169 | 892 | 732 |
| 498 | Semantics | 3 | 163 | 225 | 93 |
| 499 | Finite Element Method | 5 | 162 | 232 | 164 |
| 499 | commerce | 10 | 162 | 766 | 1020 |
| 501 | Cognitive neuroscience | 8 | 161 | 558 | 776 |
| 502 | Radiation | 14 | 158 | 933 | 1204 |
| 502 | Organometallic compounds | 4 | 158 | 1171 | 864 |
| 504 | Quantum theory | 3 | 157 | 999 | 598 |
| 505 | Coding Theory | 11 | 152 | 134 | 123 |
| 506 | Groundwater | 13 | 150 | 184 | 373 |
| 507 | Hydrometeorology | 1 | 145 | 344 | 226 |
| 507 | Mineral resources | 1 | 145 | 1178 | 541 |
| 507 | Plasma polymerization | 8 | 145 | 118 | 173 |
| 510 | Calorimetry | 10 | 144 | 561 | 712 |
| 510 | Philippines | 6 | 144 | 43 | 45 |
| 510 | Thermal analysis | 10 | 144 | 561 | 712 |
| 513 | Endocrinology | 2 | 143 | 2391 | 1863 |
| 514 | Embryology | 6 | 142 | 919 | 1117 |
| 515 | ports | 4 | 141 | 170 | 137 |
| 516 | Human genetics | 2 | 140 | 1562 | 1728 |
| 516 | Structural Equation Modeling | 1 | 140 | 206 | 119 |
| 516 | Surface properties | 7 | 140 | 712 | 1094 |
| 519 | language | 11 | 137 | 356 | 630 |
| 520 | Chemical kinetics | 9 | 134 | 349 | 282 |
| 521 | microwave antennas | 12 | 132 | 105 | 157 |
| 521 | Antibacterial agents | 5 | 132 | 427 | 544 |
| 523 | Signal Transduction | 1 | 131 | 1714 | 1188 |
| 523 | cell interaction | 1 | 131 | 1353 | 907 |
| 525 | health services | 5 | 130 | 727 | 669 |
| 526 | Kinetics | 8 | 129 | 211 | 278 |
| 527 | Geomorphology | 2 | 128 | 1484 | 1219 |
| 528 | Algebra | 9 | 127 | 946 | 681 |
| 528 | Ubiquitous computing | 19 | 127 | 6 | 62 |
| 530 | Infertility | 6 | 124 | 531 | 735 |
| 530 | fertility | 6 | 124 | 578 | 784 |
| 532 | Gene expression regulation | 8 | 122 | 484 | 735 |
| 532 | Strategic planning | 8 | 122 | 374 | 653 |
| 532 | Geodynamics | 8 | 122 | 535 | 734 |
| 532 | extraterrestrial environment | 7 | 122 | 311 | 345 |
| 532 | enzymes | 10 | 122 | 743 | 1205 |
| 532 | astronomical phenomena | 7 | 122 | 278 | 314 |
| 532 | Nonlinear systems | 6 | 122 | 392 | 411 |
| 539 | Geology | 5 | 121 | 2030 | 1891 |
| 539 | Thin Films | 6 | 121 | 303 | 274 |
| 539 | Crystallography | 10 | 121 | 945 | 737 |
| 542 | Public Relations | 1 | 120 | 807 | 292 |
| 542 | Cytogenetics | 3 | 120 | 1108 | 1127 |
| 544 | Health Services Administration | 4 | 116 | 776 | 696 |
| 544 | North America | 8 | 116 | 400 | 497 |
| 546 | Food preferences | 1 | 115 | 665 | 368 |
| 547 | Orthopedics | 4 | 114 | 1076 | 984 |
| 547 | Extracellular matrix | 1 | 114 | 375 | 285 |
| 547 | collagen | 1 | 114 | 396 | 294 |
| 550 | Orthopedic Surgery | 3 | 113 | 663 | 512 |
| 551 | Flexible manufacturing systems | 10 | 112 | 125 | 344 |
| 551 | Matroids | 5 | 112 | 180 | 178 |
| 551 | cell physiology | 3 | 112 | 1220 | 1307 |
| 554 | Wireless Communication | 12 | 111 | 94 | 224 |
| 554 | economic policy | 5 | 111 | 1786 | 1407 |
| 554 | Landslides | 4 | 111 | 180 | 290 |
| 554 | Decision making | 4 | 111 | 1224 | 1123 |
| 558 | Nutrition | 4 | 110 | 2924 | 2927 |
| 559 | Pediatrics | 3 | 109 | 1754 | 1607 |
| 559 | radiative transfer | 7 | 109 | 369 | 401 |
| 559 | Aging | 6 | 109 | 1641 | 1743 |
| 562 | Mechanics | 21 | 108 | 375 | 861 |
| 563 | Terahertz Technology | 4 | 106 | 121 | 141 |
| 563 | Radiobiology | 4 | 106 | 888 | 905 |
| 563 | Neuroplasticity | 6 | 106 | 105 | 261 |
| 563 | Computational Complexity | 10 | 106 | 473 | 620 |
| 563 | particles | 5 | 106 | 756 | 819 |
| 563 | human development | 6 | 106 | 552 | 773 |
| 569 | Radio frequency | 2 | 104 | 517 | 361 |
| 570 | Cloud Computing | 3 | 103 | 308 | 310 |
| 570 | locomotion | 2 | 103 | 750 | 559 |
| 570 | posture | 2 | 103 | 750 | 559 |
| 570 | gait | 2 | 103 | 750 | 559 |
| 570 | walking | 2 | 103 | 750 | 559 |
| 575 | Biopharmaceutics | 6 | 101 | 696 | 996 |
| 576 | Cognitive Science | 6 | 100 | 1056 | 1437 |
| 576 | optical pattern recognition | 3 | 100 | 113 | 34 |
| 578 | Surface-Active Agents | 6 | 98 | 746 | 1223 |
| 579 | Hydrogeology | 6 | 97 | 411 | 571 |
| 579 | Nanophotonics | 2 | 97 | 412 | 335 |
| 579 | environmental exposure | 4 | 97 | 1594 | 1812 |
| 579 | libraries | 2 | 97 | 683 | 346 |
| 583 | Adaptive control systems | 6 | 96 | 369 | 407 |
| 584 | Geriatric Psychiatry | 4 | 94 | 735 | 824 |
| 584 | Food Microbiology | 1 | 94 | 1687 | 1326 |
| 584 | Distributed Databases | 6 | 94 | 78 | 117 |
| 587 | child behavior | 1 | 93 | 611 | 407 |
| 587 | World Wide Web | 6 | 93 | 193 | 224 |
| 589 | Medical Oncology | 2 | 92 | 1440 | 1272 |
| 589 | Emergency Medicine | 6 | 92 | 816 | 843 |
| 589 | Japan | 10 | 92 | 872 | 1296 |
| 592 | Marine Biology | 3 | 91 | 2150 | 2048 |
| 592 | Oceanography | 3 | 91 | 1457 | 1381 |
| 592 | Intelligent Control Systems | 14 | 91 | 362 | 635 |
| 592 | Evolution | 6 | 91 | 1190 | 1557 |
| 596 | Economic Development | 6 | 90 | 1038 | 1441 |
| 596 | Virtual reality | 2 | 90 | 513 | 370 |
| 598 | Experimental Design | 4 | 89 | 209 | 256 |
| 598 | Geochemistry | 5 | 89 | 1405 | 1653 |
| 598 | Intellectual Property | 6 | 89 | 89 | 38 |
| 598 | patents | 5 | 89 | 12 | 29 |
| 602 | infrared radiation | 16 | 88 | 143 | 392 |
| 602 | Vaccines | 2 | 88 | 1628 | 1303 |
| 604 | Health Policy | 5 | 87 | 1426 | 1578 |
| 604 | Phylogeny | 3 | 87 | 839 | 999 |
| 606 | Public Health | 3 | 86 | 3951 | 3613 |
| 606 | Tribology | 17 | 86 | 406 | 977 |
| 606 | Environmental Toxicology | 3 | 86 | 2172 | 2364 |
| 606 | Superconductivity | 7 | 86 | 259 | 330 |
| 606 | food contamination | 7 | 86 | 543 | 812 |
| 606 | Solar System | 5 | 86 | 550 | 661 |
| 612 | Cognitive Radio Networks | 3 | 85 | 204 | 198 |
| 613 | Regional Planning | 9 | 84 | 825 | 1263 |
| 613 | Biomass | 1 | 84 | 1202 | 864 |
| 615 | Organizational Behavior | 2 | 83 | 699 | 711 |
| 615 | Cell death | 2 | 83 | 1062 | 1193 |
| 615 | Attention | 5 | 83 | 1045 | 1252 |
| 618 | Molecular structure | 9 | 82 | 1430 | 1984 |
| 619 | Financial Engineering | 4 | 81 | 66 | 151 |
| 619 | Biological Systems | 4 | 81 | 419 | 554 |
| 619 | Organometallic chemistry | 9 | 81 | 1263 | 1727 |
| 622 | Discrete Mathematics | 13 | 80 | 66 | 108 |
| 622 | graph | 13 | 80 | 66 | 108 |
| 622 | Brain | 11 | 80 | 1295 | 2162 |
| 625 | Neurobiology | 3 | 78 | 1331 | 1535 |
| 626 | Machine Learning | 2 | 77 | 411 | 335 |
| 626 | Endocrine glands | 1 | 77 | 410 | 437 |
| 626 | Employee selection | 1 | 77 | 242 | 153 |
| 626 | Hormones | 1 | 77 | 1538 | 1158 |
| 626 | Information society | 3 | 77 | 122 | 143 |
| 626 | Mental illness | 2 | 77 | 1709 | 1682 |
| 632 | Multiphase Flow | 3 | 76 | 387 | 436 |
| 632 | pain | 1 | 76 | 1593 | 1172 |
| 634 | Machining | 1 | 75 | 309 | 115 |
| 635 | Industrial Statistics | 3 | 74 | 207 | 112 |
| 635 | Health | 5 | 74 | 1481 | 1779 |
| 637 | soil management | 1 | 73 | 882 | 721 |
| 637 | Microfabrication | 6 | 73 | 187 | 317 |
| 637 | Microfluidics | 6 | 73 | 120 | 258 |
| 637 | Computer Literacy | 4 | 73 | 154 | 262 |
| 637 | tillage | 1 | 73 | 706 | 624 |
| 642 | Photogrammetry | 14 | 72 | 266 | 344 |
| 642 | East Asia | 5 | 72 | 422 | 419 |
| 644 | Obstetrics | 12 | 71 | 1000 | 1641 |
| 644 | Ethics | 4 | 71 | 784 | 758 |
| 644 | Pesticides | 6 | 71 | 379 | 612 |
| 647 | Climatology | 2 | 70 | 1830 | 1695 |
| 647 | Remote Sensing | 13 | 70 | 622 | 1132 |
| 647 | reasoning | 2 | 70 | 570 | 394 |
| 650 | Sleep Disorders | 2 | 69 | 1442 | 1226 |
| 650 | Hospitality industry | 2 | 69 | 547 | 473 |
| 650 | Perception | 4 | 69 | 1259 | 1433 |
| 650 | Sleep | 2 | 69 | 1474 | 1241 |
| 654 | Anatomy | 2 | 68 | 1973 | 1632 |
| 654 | Professional ethics | 3 | 68 | 261 | 290 |
| 654 | Parasitic Diseases | 3 | 68 | 1666 | 1716 |
| 657 | Diagnostic microbiology | 2 | 67 | 1030 | 1257 |
| 657 | Chromosomes | 3 | 67 | 837 | 985 |
| 657 | Tunneling | 2 | 67 | 409 | 464 |
| 657 | underground construction | 2 | 67 | 409 | 464 |
| 661 | Transportation Engineering | 2 | 66 | 367 | 371 |
| 661 | Nonparametric Statistics | 2 | 66 | 241 | 99 |
| 661 | Transport | 2 | 66 | 684 | 693 |
| 661 | synthesis | 7 | 66 | 692 | 873 |
| 665 | Infections | 2 | 65 | 1081 | 1158 |
| 665 | Thrombosis | 1 | 65 | 1149 | 911 |
| 665 | Cell cycle | 1 | 65 | 500 | 338 |
| 665 | cell proliferation | 1 | 65 | 534 | 361 |
| 665 | Enzyme | 3 | 65 | 519 | 772 |
| 665 | vascular diseases | 1 | 65 | 876 | 773 |
| 665 | Host-parasite interactions | 2 | 65 | 1214 | 1374 |
| 665 | Virulence | 2 | 65 | 1052 | 1289 |
| 673 | Computational Linguistics | 4 | 64 | 438 | 369 |
| 673 | Obesity | 1 | 64 | 2157 | 1837 |
| 675 | Environmental Education | 3 | 63 | 352 | 411 |
| 676 | Molecular Microbiology | 1 | 62 | 1117 | 1069 |
| 676 | Clinical Biochemistry | 3 | 62 | 1003 | 1070 |
| 676 | Oral communication | 4 | 62 | 363 | 438 |
| 679 | Telemedicine | 4 | 61 | 238 | 411 |
| 679 | preventive medicine | 1 | 61 | 1535 | 1166 |
| 679 | Social behavior | 3 | 61 | 1126 | 1228 |
| 679 | Developing countries | 6 | 61 | 1565 | 2187 |
| 683 | Civil Engineering | 6 | 60 | 1035 | 1124 |
| 683 | city planning | 5 | 60 | 1195 | 1590 |
| 685 | Biochemical Genetics | 3 | 59 | 455 | 303 |
| 685 | Information Retrieval | 1 | 59 | 813 | 565 |
| 685 | Land use | 2 | 59 | 1343 | 1376 |
| 685 | biofuels | 2 | 59 | 316 | 581 |
| 685 | Leadership | 3 | 59 | 530 | 784 |
| 685 | organization | 3 | 59 | 819 | 1045 |
| 691 | Histology | 2 | 57 | 1807 | 1812 |
| 691 | Visual Perception | 2 | 57 | 1441 | 1365 |
| 691 | Memory | 2 | 57 | 1567 | 1606 |
| 694 | Actuarial Science | 2 | 56 | 326 | 269 |
| 694 | insurance | 2 | 56 | 467 | 375 |
| 696 | Building Materials | 2 | 55 | 1822 | 2062 |
| 696 | Veterinary Immunology | 2 | 55 | 390 | 376 |
| 696 | Enzyme inhibitors | 2 | 55 | 538 | 522 |
| 696 | Sports | 3 | 55 | 1932 | 1762 |
| 700 | gene therapy | 1 | 54 | 1186 | 1068 |
| 700 | Investment analysis | 3 | 54 | 1006 | 1021 |
| 700 | toxicity testing | 3 | 54 | 576 | 797 |
| 700 | Genetic therapy | 1 | 54 | 1190 | 1069 |
| 700 | Stress | 2 | 54 | 367 | 424 |
| 700 | gene transfer | 1 | 54 | 451 | 333 |
| 700 | genetic transformation | 1 | 54 | 451 | 333 |
| 707 | Soil Science | 2 | 53 | 2000 | 2012 |
| 707 | embryonic development | 3 | 53 | 376 | 507 |
| 709 | Proteomics | 1 | 52 | 1387 | 1241 |
| 709 | Cardiac electrophysiology | 1 | 52 | 351 | 321 |
| 709 | Drying | 3 | 52 | 356 | 464 |
| 709 | arrhythmia | 1 | 52 | 351 | 321 |
| 709 | Nonprofit organizations | 3 | 52 | 349 | 454 |
| 714 | Forecasting | 4 | 51 | 454 | 639 |
| 714 | Exercise therapy | 1 | 51 | 927 | 459 |
| 714 | Respiration | 1 | 51 | 1731 | 1474 |
| 714 | Fungi | 2 | 51 | 1092 | 1193 |
| 718 | Environmental Psychology | 1 | 50 | 670 | 648 |
| 718 | Municipal Engineering | 3 | 50 | 332 | 504 |
| 718 | Analytical Toxicology | 2 | 50 | 242 | 260 |
| 718 | biomimicry | 2 | 50 | 221 | 249 |
| 718 | color | 2 | 50 | 318 | 267 |
| 718 | drugs | 1 | 50 | 2426 | 1975 |
| 718 | India | 3 | 50 | 1487 | 1052 |
| 725 | industrial hygiene | 4 | 49 | 821 | 861 |
| 725 | Expert Systems | 3 | 49 | 180 | 246 |
| 727 | Marine Geophysics | 1 | 48 | 491 | 295 |
| 727 | calcification | 1 | 48 | 705 | 636 |
| 727 | Cosmochemistry | 2 | 48 | 968 | 1085 |
| 727 | Money | 3 | 48 | 350 | 574 |
| 727 | Entomology | 2 | 48 | 2400 | 1956 |
| 732 | Architecture | 6 | 47 | 338 | 453 |
| 732 | Biogeography | 1 | 47 | 1340 | 1310 |
| 732 | Geometry | 5 | 47 | 944 | 883 |
| 732 | construction | 5 | 47 | 124 | 305 |
| 732 | curriculum evaluation | 1 | 47 | 698 | 476 |
| 732 | ecosystem | 1 | 47 | 1785 | 1690 |
| 738 | Operator theory | 8 | 46 | 192 | 307 |
| 738 | Multilingualism | 1 | 46 | 548 | 397 |
| 738 | structural stability | 2 | 46 | 389 | 503 |
| 738 | Cardiovascular system | 1 | 46 | 1397 | 1452 |
| 738 | Freezing | 4 | 46 | 238 | 291 |
| 738 | cultural pluralism | 1 | 46 | 753 | 486 |
| 738 | Heterocyclic compounds | 2 | 46 | 1205 | 930 |
| 738 | international cooperation | 1 | 46 | 1013 | 794 |
| 746 | Pediatric Neurology | 1 | 45 | 1007 | 1089 |
| 746 | occupational health and safety | 3 | 45 | 114 | 135 |
| 746 | Brain-Computer Interfaces | 3 | 45 | 21 | 48 |
| 746 | Air Conditioning | 6 | 45 | 93 | 188 |
| 746 | Speech Disorders | 3 | 45 | 903 | 1052 |
| 746 | Earthquakes | 3 | 45 | 333 | 375 |
| 752 | Speech-Language Pathology | 3 | 44 | 267 | 363 |
| 752 | Magnetic Resonance Imaging | 1 | 44 | 605 | 499 |
| 752 | Enteral nutrition | 1 | 44 | 1067 | 1045 |
| 752 | Parenteral nutrition | 1 | 44 | 1208 | 1148 |
| 752 | automatic speech recognition | 3 | 44 | 128 | 227 |
| 752 | Methods | 2 | 44 | 155 | 110 |
| 758 | Histochemistry | 1 | 43 | 1432 | 1095 |
| 758 | Infrared spectroscopy | 2 | 43 | 424 | 488 |
| 758 | Urban Areas | 3 | 43 | 223 | 308 |
| 758 | Culture | 10 | 43 | 539 | 986 |
| 762 | Geography | 3 | 42 | 1860 | 2157 |
| 762 | Sustainable Development | 7 | 42 | 1278 | 2667 |
| 762 | Neuropsychology | 2 | 42 | 2250 | 2309 |
| 762 | Mental Health | 1 | 42 | 2220 | 1704 |
| 762 | Mental Health Services | 1 | 42 | 1573 | 1310 |
| 767 | Oral Medicine | 1 | 41 | 1137 | 770 |
| 767 | Geomagnetism | 3 | 41 | 555 | 693 |
| 769 | Nondestructive testing | 4 | 40 | 568 | 814 |
| 769 | Reading | 2 | 40 | 687 | 734 |
| 769 | Plasma devices | 3 | 40 | 287 | 400 |
| 772 | Systems Biology | 3 | 39 | 1287 | 1792 |
| 772 | Adsorption | 2 | 39 | 278 | 335 |
| 774 | Geotechnical Engineering | 2 | 38 | 565 | 584 |
| 774 | Graphene | 2 | 38 | 146 | 288 |
| 776 | Epidemiology | 2 | 37 | 3138 | 3313 |
| 776 | Cosmology | 5 | 37 | 472 | 725 |
| 776 | Quality Assurance | 2 | 37 | 441 | 457 |
| 776 | Light | 2 | 37 | 995 | 1251 |
| 776 | investigative techniques | 1 | 37 | 302 | 355 |
| 781 | nuclear astrophysics | 4 | 36 | 424 | 632 |
| 781 | Scheduling | 5 | 36 | 71 | 233 |
| 781 | Production Scheduling | 5 | 36 | 71 | 233 |
| 784 | Coastal zone management | 1 | 35 | 1076 | 984 |
| 784 | Action Research | 2 | 35 | 322 | 306 |
| 784 | Magnetic Resonance Spectroscopy | 2 | 35 | 1198 | 1132 |
| 784 | Eastern Europe | 5 | 35 | 604 | 853 |
| 784 | Protein engineering | 2 | 35 | 257 | 362 |
| 784 | molecular design | 2 | 35 | 284 | 365 |
| 784 | traffic safety | 5 | 35 | 179 | 424 |
| 791 | Pathology | 1 | 34 | 2126 | 2074 |
| 791 | Demography | 1 | 34 | 1002 | 885 |
| 793 | Microscopy | 6 | 33 | 957 | 1546 |
| 794 | Database Security | 3 | 32 | 61 | 125 |
| 794 | disaster relief | 1 | 32 | 417 | 374 |
| 796 | Rheumatology | 1 | 31 | 1268 | 1207 |
| 796 | ethnicity | 2 | 31 | 872 | 786 |
| 796 | Ethnic relations | 2 | 31 | 757 | 677 |
| 796 | arthritis | 1 | 31 | 1185 | 1329 |
| 800 | Oncology | 2 | 30 | 1938 | 2573 |
| 800 | Physical Therapy | 2 | 30 | 1362 | 1531 |
| 800 | Language Disorders | 2 | 30 | 912 | 1013 |
| 800 | Political Sociology | 1 | 30 | 797 | 615 |
| 800 | Nationalism | 1 | 30 | 625 | 404 |
| 800 | Energy Consumption | 2 | 30 | 486 | 776 |
| 800 | microwave integrated circuits | 4 | 30 | 2 | 10 |
| 800 | viruses | 2 | 30 | 1266 | 1696 |
| 800 | Group Identity | 1 | 30 | 205 | 120 |
| 809 | Nuclear Engineering | 6 | 29 | 1012 | 1507 |
| 809 | Sports Medicine | 1 | 29 | 3034 | 2414 |
| 809 | Immunopathology | 1 | 29 | 1330 | 1360 |
| 809 | air quality management | 1 | 29 | 947 | 974 |
| 809 | Laser therapy | 1 | 29 | 740 | 575 |
| 809 | sustainability | 4 | 29 | 717 | 1473 |
| 809 | Auditing | 2 | 29 | 480 | 623 |
| 809 | disease outbreaks | 1 | 29 | 700 | 775 |
| 809 | Epidemics | 1 | 29 | 672 | 764 |
| 818 | Applied Linguistics | 1 | 28 | 1034 | 782 |
| 818 | Phonetics | 1 | 28 | 543 | 502 |
| 820 | Zoology | 2 | 27 | 2510 | 2541 |
| 820 | Structural optimization | 2 | 27 | 429 | 606 |
| 820 | particle accelerators | 1 | 27 | 195 | 192 |
| 820 | Bibliometrics | 1 | 27 | 294 | 332 |
| 820 | Synchrotron Radiation | 4 | 27 | 292 | 511 |
| 820 | Metabolic diseases | 1 | 27 | 2214 | 2333 |
| 820 | Developmental Disabilities | 2 | 27 | 1080 | 1436 |
| 820 | organizational effectiveness | 1 | 27 | 819 | 727 |
| 820 | scientific research | 1 | 27 | 125 | 76 |
| 820 | particle beams | 1 | 27 | 188 | 186 |
| 820 | corporate culture | 1 | 27 | 414 | 461 |
| 820 | Insects | 1 | 27 | 1977 | 1643 |
| 832 | Logic | 1 | 26 | 727 | 499 |
| 832 | Neurotoxicology | 1 | 26 | 959 | 1127 |
| 832 | Rock deformation | 3 | 26 | 192 | 430 |
| 832 | analysis | 3 | 26 | 354 | 566 |
| 832 | Prospecting | 1 | 26 | 198 | 139 |
| 837 | Genetic Toxicology | 1 | 25 | 739 | 899 |
| 837 | Depression | 1 | 25 | 574 | 744 |
| 837 | Structural biology | 1 | 25 | 158 | 235 |
| 837 | Urban Transportation | 2 | 25 | 166 | 229 |
| 837 | Hydraulic machinery | 1 | 25 | 106 | 63 |
| 837 | Anxiety Disorders | 1 | 25 | 752 | 938 |
| 837 | Anxiety | 1 | 25 | 757 | 939 |
| 837 | Cardiovascular diseases | 2 | 25 | 1449 | 1659 |
| 845 | Quantum Chemistry | 1 | 24 | 326 | 296 |
| 845 | Mitochondrial DNA | 2 | 24 | 268 | 216 |
| 845 | Breeding | 3 | 24 | 1078 | 1593 |
| 848 | Industrial Design | 1 | 23 | 484 | 517 |
| 848 | Microbial Ecology | 1 | 23 | 2574 | 2945 |
| 848 | Marine Biotechnology | 1 | 23 | 405 | 539 |
| 848 | Financial management | 2 | 23 | 563 | 916 |
| 848 | nuclear magnetic resonance spectroscopy | 1 | 23 | 1018 | 910 |
| 848 | radar | 3 | 23 | 153 | 293 |
| 848 | NMR | 1 | 23 | 846 | 740 |
| 848 | magnetic resonance | 1 | 23 | 859 | 743 |
| 856 | Veterinary Pathology | 2 | 22 | 421 | 494 |
| 856 | Seismology | 1 | 22 | 708 | 681 |
| 856 | Geographic information systems | 2 | 22 | 1353 | 1541 |
| 856 | Animal breeding | 2 | 22 | 863 | 1092 |
| 856 | Labor Supply | 1 | 22 | 147 | 218 |
| 856 | Human Capital | 1 | 22 | 476 | 537 |
| 856 | dietary supplements | 1 | 22 | 1412 | 1624 |
| 856 | construction industry | 1 | 22 | 287 | 277 |
| 864 | Crisis management | 1 | 21 | 336 | 323 |
| 864 | Health promotion | 2 | 21 | 1226 | 1474 |
| 864 | X-ray crystallography | 5 | 21 | 411 | 673 |
| 864 | biological monitoring | 2 | 21 | 611 | 1027 |
| 864 | Catalysts | 1 | 21 | 1116 | 1123 |
| 869 | Parasitology | 3 | 20 | 2020 | 2706 |
| 869 | Shock Waves | 1 | 20 | 324 | 294 |
| 869 | Programming Languages | 4 | 20 | 15 | 44 |
| 869 | Muscle contraction | 5 | 20 | 208 | 384 |
| 873 | Psycholinguistics | 3 | 19 | 900 | 1385 |
| 873 | Hypertension | 3 | 19 | 1083 | 1762 |
| 873 | Structural health monitoring | 1 | 19 | 373 | 483 |
| 873 | Long-Term Care | 1 | 19 | 752 | 875 |
| 873 | Long-term care facilities | 1 | 19 | 746 | 869 |
| 873 | Food | 1 | 19 | 3687 | 3966 |
| 873 | Ventilation | 4 | 19 | 392 | 947 |
| 880 | Coastal Engineering | 1 | 18 | 230 | 205 |
| 880 | Number Theory | 6 | 18 | 565 | 929 |
| 880 | Biomechanics | 1 | 18 | 1826 | 1955 |
| 880 | Logic Programming | 2 | 18 | 405 | 422 |
| 880 | Language teaching | 2 | 18 | 79 | 194 |
| 880 | second language | 2 | 18 | 79 | 194 |
| 880 | Southeast Asia | 2 | 18 | 485 | 598 |
| 880 | Kidney diseases | 1 | 18 | 1140 | 1210 |
| 880 | Menopause | 1 | 18 | 498 | 586 |
| 889 | Humanities | 1 | 17 | 3108 | 2488 |
| 889 | Planetary Science | 2 | 17 | 576 | 734 |
| 889 | Neurolinguistics | 2 | 17 | 534 | 816 |
| 889 | Moon | 2 | 17 | 180 | 236 |
| 889 | forest policy | 1 | 17 | 612 | 730 |
| 889 | games | 8 | 17 | 13 | 16 |
| 889 | Approximation Theory | 1 | 17 | 717 | 631 |
| 889 | Flow cytometry | 1 | 17 | 523 | 633 |
| 897 | Game Theory | 2 | 16 | 686 | 866 |
| 897 | Developmental Psychology | 3 | 16 | 989 | 1595 |
| 897 | Oral Pathology | 1 | 16 | 183 | 259 |
| 897 | Learning disabilities | 1 | 16 | 1175 | 1237 |
| 897 | preimplantation genetic diagnosis | 2 | 16 | 496 | 796 |
| 897 | embryo transfer | 2 | 16 | 506 | 813 |
| 897 | rare diseases | 1 | 16 | 823 | 935 |
| 904 | Materials Engineering | 4 | 15 | 629 | 1315 |
| 904 | Food Safety | 1 | 15 | 576 | 689 |
| 904 | Socioeconomic Factors | 1 | 15 | 1252 | 1590 |
| 904 | Marriage | 1 | 15 | 883 | 991 |
| 904 | Hearing Aids | 1 | 15 | 337 | 342 |
| 904 | Hypertension in pregnancy | 1 | 15 | 322 | 362 |
| 904 | Family | 1 | 15 | 1499 | 1626 |
| 904 | Great Lakes | 1 | 15 | 354 | 445 |
| 904 | Longevity | 1 | 15 | 346 | 499 |
| 904 | rejuvenation | 1 | 15 | 264 | 432 |
| 904 | Europa | 1 | 15 | 829 | 935 |
| 904 | Metrology | 2 | 15 | 106 | 147 |
| 916 | Risk Management | 3 | 14 | 633 | 1302 |
| 916 | Microbial Biotechnology | 1 | 14 | 1651 | 1975 |
| 916 | Crystallization | 4 | 14 | 422 | 729 |
| 916 | digital preservation | 2 | 14 | 92 | 225 |
| 916 | Behavioral Finance | 1 | 14 | 143 | 211 |
| 916 | moral development | 1 | 14 | 252 | 390 |
| 916 | Moral Education | 1 | 14 | 283 | 353 |
| 916 | educational statistics | 2 | 14 | 117 | 217 |
| 916 | Porous materials | 2 | 14 | 969 | 1353 |
| 916 | Nonlinear mechanics | 1 | 14 | 801 | 887 |
| 926 | Photography | 12 | 13 | 530 | 856 |
| 926 | Information visualization | 2 | 13 | 237 | 379 |
| 926 | Green Technology | 1 | 13 | 869 | 1165 |
| 926 | Real-time Data Processing | 2 | 13 | 157 | 290 |
| 926 | Turbulence | 1 | 13 | 399 | 464 |
| 926 | Continental shelf | 1 | 13 | 560 | 730 |
| 926 | anesthesia | 2 | 13 | 599 | 761 |
| 926 | Development | 1 | 13 | 1232 | 1519 |
| 926 | Economic Assistance | 1 | 13 | 1120 | 1411 |
| 926 | world | 1 | 13 | 1117 | 1530 |
| 936 | Neuroimaging | 1 | 12 | 448 | 521 |
| 936 | Comparative Physiology | 1 | 12 | 1101 | 1386 |
| 936 | Probability | 2 | 12 | 687 | 1062 |
| 936 | Clinical Pharmacology | 1 | 12 | 1569 | 1838 |
| 936 | School Psychology | 1 | 12 | 724 | 950 |
| 936 | Communication and Culture | 2 | 12 | 369 | 551 |
| 936 | Mental Disorders | 1 | 12 | 3025 | 3364 |
| 936 | Herbal medicine | 2 | 12 | 898 | 1702 |
| 936 | nuclear magnetic resonance | 1 | 12 | 1249 | 1288 |
| 936 | Electromagnetic waves | 2 | 12 | 399 | 636 |
| 936 | psychophysics | 2 | 12 | 445 | 630 |
| 936 | Semantic web | 1 | 12 | 197 | 295 |
| 936 | mental processes | 1 | 12 | 594 | 641 |
| 949 | epilepsy | 1 | 11 | 1225 | 1494 |
| 949 | Real Estate Investment | 1 | 11 | 307 | 374 |
| 949 | Regional Development | 3 | 11 | 260 | 588 |
| 949 | Nanomanufacturing | 1 | 11 | 241 | 196 |
| 949 | Development planning | 3 | 11 | 218 | 558 |
| 949 | indoor air pollution | 1 | 11 | 675 | 936 |
| 949 | Social work | 1 | 11 | 1994 | 2086 |
| 949 | Sick building syndrome | 1 | 11 | 675 | 936 |
| 949 | infrared technology | 7 | 11 | 109 | 334 |
| 949 | Economic planning | 3 | 11 | 508 | 1216 |
| 959 | Arts | 2 | 10 | 541 | 576 |
| 959 | Dentistry | 1 | 10 | 1062 | 1068 |
| 959 | American Literature | 1 | 10 | 1048 | 246 |
| 959 | Naval Architecture | 2 | 10 | 376 | 607 |
| 959 | Language Acquisition | 1 | 10 | 604 | 700 |
| 959 | Highway Engineering | 2 | 10 | 471 | 821 |
| 959 | Popular culture | 4 | 10 | 435 | 727 |
| 959 | environmental indicators | 1 | 10 | 1676 | 2285 |
| 959 | business cycles | 1 | 10 | 137 | 90 |
| 959 | Bilingualism | 1 | 10 | 307 | 445 |
| 959 | intergroup relations | 1 | 10 | 366 | 566 |
| 959 | Happiness | 1 | 10 | 870 | 1211 |
| 959 | Broadcast Journalism | 1 | 10 | 74 | 71 |
| 959 | Postcolonialism | 2 | 10 | 178 | 262 |
| 959 | Environmental risk assessment | 2 | 10 | 508 | 974 |
| 959 | Random graphs | 2 | 10 | 201 | 283 |
| 959 | Television | 1 | 10 | 244 | 124 |
| 959 | peptides | 1 | 10 | 1293 | 1564 |
| 959 | heredity | 2 | 10 | 739 | 1194 |
| 959 | Jurisprudence | 1 | 10 | 1335 | 1425 |
| 959 | economic development projects | 1 | 10 | 390 | 568 |
| 980 | Public Administration | 2 | 9 | 1554 | 2123 |
| 980 | Plant Biotechnology | 1 | 9 | 1208 | 1514 |
| 980 | Communication Theory | 1 | 9 | 120 | 136 |
| 980 | Molecular recognition | 1 | 9 | 450 | 675 |
| 980 | Plant genetic engineering | 1 | 9 | 1220 | 1544 |
| 980 | Antioxidants | 1 | 9 | 1058 | 1468 |
| 980 | Flood forecasting | 2 | 9 | 138 | 447 |
| 980 | Flood control | 2 | 9 | 332 | 749 |
| 980 | free radicals | 1 | 9 | 1640 | 2127 |
| 980 | explosives | 2 | 9 | 228 | 378 |
| 980 | vitamin C | 1 | 9 | 702 | 1053 |
| 980 | vitamin E | 1 | 9 | 702 | 1053 |
| 992 | International Relations | 2 | 8 | 1192 | 1478 |
| 992 | Genetic epidemiology | 1 | 8 | 367 | 507 |
| 992 | Engineering Ethics | 1 | 8 | 379 | 611 |
| 992 | Integrated Optics | 1 | 8 | 165 | 157 |
| 992 | Eating Disorders | 1 | 8 | 1172 | 1487 |
| 992 | Feeding and Eating Disorders | 1 | 8 | 1125 | 1433 |
| 992 | Solutions | 2 | 8 | 519 | 853 |
| 992 | Chemical structure | 1 | 8 | 1019 | 1180 |
| 992 | heating | 3 | 8 | 144 | 405 |