| 1 | Physics | 507 | 29.1K | 735 | 808 |
| 2 | Nuclear Physics | 532 | 27.2K | 346 | 254 |
| 3 | United States | 937 | 19.8K | 104 | 137 |
| 4 | Chemistry | 340 | 15.4K | 1037 | 975 |
| 5 | Psychology | 478 | 14.4K | 188 | 218 |
| 6 | Biology | 253 | 13.2K | 917 | 1207 |
| 7 | Solid State Physics | 324 | 10.8K | 338 | 309 |
| 8 | Condensed Matter | 312 | 10.8K | 313 | 310 |
| 9 | Science | 192 | 10.3K | 1241 | 1476 |
| 10 | Behavior | 182 | 9.5K | 222 | 216 |
| 11 | management | 104 | 9.0K | 379 | 262 |
| 12 | Education | 479 | 8.6K | 75 | 139 |
| 13 | Mathematical Physics | 16 | 7.9K | 1291 | 142 |
| 14 | Business | 67 | 7.6K | 255 | 137 |
| 15 | human behavior | 99 | 7.5K | 243 | 196 |
| 16 | Public Health | 62 | 6.0K | 1044 | 498 |
| 17 | Biochemistry | 207 | 5.7K | 1301 | 1485 |
| 18 | Mathematics | 485 | 5.7K | 290 | 341 |
| 19 | Ecology | 107 | 5.7K | 1014 | 967 |
| 20 | behavior therapy | 65 | 5.5K | 89 | 32 |
| 21 | Catalysis | 41 | 5.3K | 1230 | 568 |
| 22 | Educational Psychology | 145 | 5.2K | 63 | 86 |
| 23 | Neurology | 78 | 5.0K | 1151 | 966 |
| 24 | Microbiology | 82 | 5.0K | 1362 | 1115 |
| 25 | Quantum Gravity | 154 | 4.9K | 338 | 372 |
| 26 | Statistics | 208 | 4.9K | 137 | 197 |
| 27 | Social Psychology | 134 | 4.8K | 174 | 238 |
| 28 | Psychiatry | 175 | 4.8K | 399 | 628 |
| 29 | Molecular Biology | 97 | 4.7K | 1659 | 1596 |
| 30 | marketing | 68 | 4.6K | 226 | 193 |
| 31 | Clinical Psychology | 59 | 4.4K | 184 | 141 |
| 32 | Psychophysiology | 148 | 4.3K | 293 | 417 |
| 33 | Materials | 80 | 4.3K | 1465 | 1113 |
| 34 | psychotherapy | 47 | 4.2K | 226 | 135 |
| 35 | Medicine | 126 | 4.2K | 1726 | 1926 |
| 36 | child abuse | 78 | 4.1K | 49 | 41 |
| 37 | nucleic acids | 14 | 3.9K | 838 | 375 |
| 38 | Vocational guidance | 90 | 3.8K | 65 | 67 |
| 39 | Child psychology | 117 | 3.7K | 141 | 221 |
| 40 | personality | 86 | 3.6K | 143 | 189 |
| 41 | Social Sciences | 175 | 3.5K | 172 | 206 |
| 42 | Sociology | 132 | 3.4K | 239 | 293 |
| 42 | Research | 104 | 3.4K | 1573 | 1552 |
| 44 | Natural history | 41 | 3.0K | 902 | 1775 |
| 45 | Family | 92 | 3.0K | 61 | 57 |
| 46 | Geology | 73 | 2.9K | 607 | 471 |
| 47 | Environment | 40 | 2.9K | 1367 | 1272 |
| 48 | Learning | 59 | 2.8K | 159 | 166 |
| 49 | Adolescent | 60 | 2.8K | 299 | 195 |
| 50 | Neurophysiology | 81 | 2.7K | 496 | 644 |
| 51 | Personality Assessment | 23 | 2.7K | 124 | 42 |
| 52 | Materials Science | 87 | 2.7K | 893 | 987 |
| 53 | Public Policy | 21 | 2.6K | 522 | 158 |
| 54 | commerce | 10 | 2.5K | 746 | 172 |
| 55 | Mental Disorders | 26 | 2.5K | 957 | 585 |
| 56 | Nanotechnology | 59 | 2.5K | 1273 | 1238 |
| 57 | Meteorology | 58 | 2.5K | 421 | 470 |
| 58 | Advertising | 8 | 2.4K | 122 | 13 |
| 59 | Environmental Health | 39 | 2.4K | 1490 | 1133 |
| 60 | Special Education | 101 | 2.4K | 49 | 48 |
| 61 | Child Development | 57 | 2.3K | 325 | 312 |
| 62 | Health Policy | 19 | 2.3K | 782 | 266 |
| 63 | mathematical analysis | 127 | 2.3K | 169 | 137 |
| 64 | Audiology | 43 | 2.3K | 139 | 84 |
| 65 | Epidemiology | 15 | 2.3K | 1737 | 622 |
| 65 | Mental illness | 14 | 2.3K | 898 | 435 |
| 67 | Organic Chemistry | 79 | 2.3K | 537 | 539 |
| 68 | adolescence | 36 | 2.3K | 162 | 103 |
| 69 | Economics | 152 | 2.3K | 454 | 655 |
| 70 | Brain | 73 | 2.3K | 517 | 590 |
| 71 | Cognition | 54 | 2.2K | 302 | 284 |
| 72 | violence | 83 | 2.2K | 52 | 88 |
| 73 | Public Administration | 76 | 2.2K | 123 | 131 |
| 74 | Animal Behavior | 58 | 2.2K | 326 | 371 |
| 75 | health services accessibility | 7 | 2.2K | 597 | 50 |
| 76 | Production Management | 19 | 2.1K | 339 | 207 |
| 77 | Health | 48 | 2.1K | 373 | 282 |
| 78 | Botany | 64 | 2.0K | 865 | 970 |
| 79 | Biophysics | 99 | 2.0K | 1083 | 1405 |
| 80 | Cytology | 37 | 2.0K | 1354 | 1437 |
| 81 | Teaching | 73 | 2.0K | 163 | 170 |
| 82 | Communication | 122 | 2.0K | 130 | 308 |
| 83 | families | 59 | 2.0K | 67 | 53 |
| 84 | Climatology | 48 | 1.9K | 332 | 366 |
| 85 | Criminal psychology | 39 | 1.9K | 122 | 87 |
| 86 | School Psychology | 70 | 1.9K | 33 | 46 |
| 87 | Biotechnology | 41 | 1.8K | 1740 | 1739 |
| 88 | Operations Research | 33 | 1.8K | 585 | 351 |
| 89 | Psycholinguistics | 31 | 1.8K | 199 | 164 |
| 90 | Youth | 26 | 1.8K | 122 | 73 |
| 91 | Medical Laboratory Science | 12 | 1.8K | 1116 | 467 |
| 92 | Virology | 45 | 1.8K | 771 | 1192 |
| 93 | Ethology | 38 | 1.8K | 330 | 376 |
| 94 | Sports | 83 | 1.7K | 245 | 329 |
| 95 | Health Education | 80 | 1.7K | 213 | 258 |
| 96 | Physiology | 46 | 1.7K | 1074 | 1062 |
| 97 | biological evolution | 36 | 1.7K | 509 | 587 |
| 98 | Telecommunication | 15 | 1.7K | 1257 | 527 |
| 99 | behavioral medicine | 11 | 1.7K | 590 | 257 |
| 100 | Speech | 64 | 1.7K | 100 | 133 |
| 101 | Reading | 81 | 1.7K | 26 | 52 |
| 102 | Pediatrics | 26 | 1.7K | 794 | 611 |
| 103 | Evolution | 25 | 1.6K | 559 | 493 |
| 104 | Nervous system | 17 | 1.6K | 1066 | 682 |
| 105 | Solid State Chemistry | 52 | 1.6K | 471 | 342 |
| 106 | Speech Disorders | 85 | 1.6K | 113 | 163 |
| 107 | Learning disabilities | 77 | 1.6K | 55 | 73 |
| 108 | counseling | 133 | 1.6K | 75 | 194 |
| 108 | Classification | 30 | 1.6K | 14 | 30 |
| 110 | Architecture | 4 | 1.6K | 445 | 8 |
| 111 | construction | 3 | 1.6K | 174 | 4 |
| 112 | Chemical Engineering | 28 | 1.5K | 1827 | 1434 |
| 113 | Criminology | 23 | 1.5K | 272 | 114 |
| 114 | Astronomy | 21 | 1.5K | 1267 | 954 |
| 115 | Anthropology | 107 | 1.5K | 123 | 182 |
| 116 | Electronics | 41 | 1.5K | 1004 | 753 |
| 117 | finance | 61 | 1.5K | 350 | 387 |
| 118 | behavior modification | 41 | 1.5K | 59 | 87 |
| 119 | Nursing | 83 | 1.5K | 143 | 153 |
| 120 | Economic History | 75 | 1.5K | 425 | 459 |
| 121 | Environmental Toxicology | 9 | 1.5K | 1447 | 551 |
| 122 | Physical Chemistry | 24 | 1.5K | 758 | 534 |
| 123 | Pollution | 34 | 1.5K | 1812 | 1851 |
| 124 | Exercise | 57 | 1.4K | 135 | 163 |
| 125 | Nanostructured Materials | 23 | 1.4K | 1257 | 900 |
| 126 | Intellectual disability | 77 | 1.3K | 63 | 119 |
| 127 | Primates | 37 | 1.3K | 111 | 94 |
| 128 | Neuropsychology | 56 | 1.3K | 408 | 529 |
| 129 | Spectrum analysis | 108 | 1.3K | 683 | 1255 |
| 130 | recreation | 98 | 1.3K | 23 | 48 |
| 131 | Social behavior | 30 | 1.3K | 254 | 249 |
| 132 | Anxiety Disorders | 18 | 1.3K | 153 | 151 |
| 132 | Anxiety | 18 | 1.3K | 155 | 150 |
| 134 | Post-traumatic stress disorder | 29 | 1.2K | 154 | 168 |
| 135 | Biocompatible Materials | 22 | 1.2K | 1575 | 1471 |
| 136 | Radio | 6 | 1.2K | 1164 | 459 |
| 137 | Mental Health | 21 | 1.1K | 516 | 258 |
| 137 | Suicide | 13 | 1.1K | 197 | 66 |
| 139 | Philosophy | 99 | 1.1K | 174 | 154 |
| 140 | Occupational Health | 15 | 1.1K | 343 | 134 |
| 141 | crime | 14 | 1.1K | 247 | 95 |
| 142 | Geophysics | 47 | 1.1K | 985 | 1177 |
| 143 | Geochemistry | 25 | 1.1K | 724 | 647 |
| 144 | Pediatric Neurology | 6 | 1.1K | 710 | 465 |
| 145 | Sports Medicine | 53 | 1.1K | 468 | 582 |
| 146 | Algebra | 100 | 1.1K | 89 | 96 |
| 147 | Language Disorders | 32 | 1.1K | 177 | 149 |
| 148 | Family Therapy | 67 | 1.1K | 50 | 87 |
| 149 | Political Science | 55 | 1.0K | 282 | 316 |
| 150 | Mycology | 23 | 1.0K | 484 | 388 |
| 151 | epilepsy | 12 | 1.0K | 428 | 167 |
| 152 | Adult Education | 130 | 1.0K | 5 | 17 |
| 153 | Information Theory | 10 | 1.0K | 747 | 329 |
| 154 | Renewable Energy Sources | 10 | 998 | 1560 | 1166 |
| 155 | Meteorites | 18 | 997 | 379 | 395 |
| 156 | Developmental Psychology | 33 | 988 | 200 | 291 |
| 157 | Artificial Intelligence | 18 | 983 | 1589 | 1106 |
| 158 | sex crimes | 39 | 979 | 59 | 68 |
| 159 | Paleontology | 28 | 976 | 371 | 258 |
| 160 | Europe | 39 | 966 | 758 | 702 |
| 161 | Linguistics | 26 | 956 | 326 | 229 |
| 162 | Emotions | 23 | 952 | 127 | 157 |
| 163 | Analytical Chemistry | 52 | 939 | 1204 | 1582 |
| 163 | plant molecular biology | 10 | 939 | 835 | 680 |
| 165 | Organizational Behavior | 20 | 936 | 138 | 183 |
| 166 | nanoscience | 19 | 931 | 1252 | 1133 |
| 167 | Plants | 9 | 926 | 1202 | 749 |
| 168 | Electrochemistry | 84 | 918 | 823 | 1238 |
| 169 | Statistical physics | 23 | 911 | 1367 | 1048 |
| 170 | Politics | 26 | 906 | 104 | 83 |
| 170 | government | 25 | 906 | 140 | 109 |
| 172 | Decision making | 21 | 902 | 389 | 326 |
| 173 | Diet | 27 | 898 | 591 | 786 |
| 174 | Genetics | 30 | 890 | 1251 | 1766 |
| 175 | Microbial Ecology | 17 | 884 | 927 | 980 |
| 176 | school psychologists | 36 | 881 | 22 | 48 |
| 177 | biocatalysis | 2 | 862 | 249 | 156 |
| 177 | Memory | 29 | 862 | 524 | 607 |
| 177 | Homogeneous catalysis | 2 | 862 | 249 | 156 |
| 177 | Heterogeneous catalysis | 2 | 862 | 249 | 156 |
| 181 | Numerical Analysis | 26 | 859 | 693 | 406 |
| 181 | Cognitive Science | 21 | 859 | 427 | 465 |
| 183 | environmental pollution | 25 | 858 | 1658 | 1834 |
| 184 | Stress | 16 | 855 | 20 | 5 |
| 185 | Earth Sciences | 38 | 853 | 860 | 1022 |
| 186 | Gerontology | 47 | 850 | 363 | 416 |
| 187 | Aging | 46 | 843 | 601 | 866 |
| 188 | Child | 29 | 839 | 676 | 619 |
| 189 | family violence | 19 | 835 | 80 | 76 |
| 190 | Differential Equations | 35 | 832 | 156 | 145 |
| 191 | Health promotion | 18 | 825 | 352 | 282 |
| 192 | Socialization | 21 | 824 | 103 | 123 |
| 193 | role | 20 | 822 | 72 | 83 |
| 194 | Hearing | 49 | 803 | 111 | 160 |
| 195 | preventive medicine | 10 | 793 | 609 | 388 |
| 196 | Dietetics | 25 | 790 | 159 | 128 |
| 197 | Economic Development | 26 | 786 | 375 | 531 |
| 198 | Adolescent Medicine | 4 | 771 | 500 | 295 |
| 199 | Biomedical Engineering | 29 | 770 | 1719 | 1898 |
| 200 | Zoology | 30 | 766 | 738 | 621 |
| 201 | Geography | 38 | 765 | 446 | 600 |
| 202 | Nonlinear Dynamics | 17 | 763 | 872 | 637 |
| 203 | elder abuse | 13 | 758 | 80 | 29 |
| 203 | energy development | 6 | 758 | 521 | 316 |
| 205 | Plant Ecology | 16 | 757 | 719 | 691 |
| 206 | Technology | 20 | 753 | 1604 | 1223 |
| 207 | Endocrinology | 15 | 750 | 1418 | 1370 |
| 208 | weather forecasting | 10 | 748 | 65 | 32 |
| 209 | Cell Biology | 16 | 745 | 1991 | 2200 |
| 210 | Geriatrics | 47 | 735 | 639 | 924 |
| 210 | Automation | 28 | 735 | 694 | 843 |
| 212 | motivation | 27 | 720 | 33 | 76 |
| 213 | Cognitive Therapy | 20 | 714 | 146 | 126 |
| 214 | Econometrics | 25 | 706 | 399 | 394 |
| 215 | probabilities | 32 | 702 | 317 | 197 |
| 215 | Fungi | 9 | 702 | 573 | 392 |
| 217 | Social problems | 18 | 701 | 142 | 158 |
| 218 | Educational Technology | 48 | 700 | 144 | 344 |
| 219 | Planets | 26 | 693 | 559 | 746 |
| 219 | language | 26 | 693 | 160 | 242 |
| 221 | Industrial Microbiology | 15 | 685 | 764 | 752 |
| 222 | Neurobiology | 6 | 684 | 1255 | 880 |
| 222 | Developmental Disabilities | 20 | 684 | 315 | 370 |
| 224 | natural disasters | 20 | 683 | 304 | 309 |
| 225 | Sound | 20 | 678 | 342 | 246 |
| 226 | Discourse Analysis | 27 | 674 | 21 | 52 |
| 227 | Plant cells | 2 | 671 | 1242 | 722 |
| 228 | Aggression | 24 | 668 | 70 | 129 |
| 229 | Human evolution | 18 | 666 | 117 | 138 |
| 230 | Functional Analysis | 36 | 656 | 217 | 245 |
| 231 | Organometallic compounds | 32 | 643 | 243 | 346 |
| 232 | Social work | 23 | 642 | 416 | 298 |
| 233 | fuel cells | 18 | 636 | 498 | 626 |
| 234 | Gender Studies | 23 | 629 | 39 | 58 |
| 235 | Oceanography | 15 | 626 | 793 | 683 |
| 236 | Optical materials | 12 | 625 | 1459 | 1218 |
| 237 | Marriage | 24 | 623 | 88 | 92 |
| 238 | Speech Perception | 12 | 620 | 128 | 116 |
| 238 | auditory perception | 12 | 620 | 155 | 127 |
| 240 | local government | 17 | 613 | 61 | 52 |
| 241 | Surface Chemistry | 29 | 610 | 1429 | 1672 |
| 242 | Social Issues | 13 | 607 | 67 | 53 |
| 243 | Mass Spectrometry | 29 | 602 | 286 | 394 |
| 244 | older people | 43 | 597 | 301 | 331 |
| 245 | Child welfare | 14 | 590 | 386 | 256 |
| 246 | Intelligence | 5 | 584 | 175 | 86 |
| 247 | Human Geography | 24 | 574 | 284 | 290 |
| 247 | Developing countries | 35 | 574 | 453 | 722 |
| 249 | Information Technology | 18 | 573 | 863 | 807 |
| 250 | Entomology | 35 | 569 | 577 | 650 |
| 251 | Environmental Education | 17 | 564 | 58 | 59 |
| 252 | Molecular Microbiology | 8 | 556 | 503 | 499 |
| 253 | homosexuality | 23 | 546 | 51 | 74 |
| 254 | Biochemical Engineering | 12 | 545 | 1861 | 2148 |
| 255 | vibration | 19 | 543 | 363 | 345 |
| 256 | mammals | 22 | 539 | 240 | 252 |
| 257 | Molecular evolution | 13 | 535 | 630 | 665 |
| 258 | Process Control | 4 | 534 | 789 | 434 |
| 258 | Nonlinear functional analysis | 31 | 534 | 168 | 206 |
| 260 | Environmental monitoring | 5 | 530 | 3239 | 1980 |
| 261 | psychopathology | 5 | 527 | 247 | 134 |
| 262 | Regional Planning | 28 | 524 | 375 | 507 |
| 263 | Structural dynamics | 15 | 523 | 396 | 419 |
| 264 | particle accelerators | 21 | 520 | 35 | 33 |
| 264 | particle beams | 21 | 520 | 35 | 33 |
| 266 | city planning | 30 | 517 | 346 | 499 |
| 267 | Law | 13 | 503 | 478 | 175 |
| 268 | Mineralogy | 17 | 494 | 556 | 520 |
| 269 | Colloids | 23 | 484 | 1550 | 1926 |
| 270 | Portfolio Management | 17 | 481 | 61 | 44 |
| 271 | Queer Studies | 17 | 477 | 26 | 51 |
| 272 | health services | 14 | 476 | 401 | 311 |
| 273 | Environmental Engineering | 21 | 475 | 1430 | 1854 |
| 273 | Plant physiology | 6 | 475 | 1536 | 1151 |
| 275 | Photochemistry | 25 | 472 | 398 | 619 |
| 275 | Crystallography | 57 | 472 | 233 | 362 |
| 275 | Light | 24 | 472 | 222 | 639 |
| 278 | United Kingdom | 13 | 471 | 710 | 748 |
| 279 | Adolescent Psychology | 14 | 467 | 312 | 349 |
| 280 | Bioorganic chemistry | 19 | 465 | 1251 | 1435 |
| 281 | Energy Conversion | 13 | 463 | 614 | 868 |
| 282 | Research Design | 13 | 454 | 478 | 489 |
| 283 | Ophthalmology | 9 | 453 | 1163 | 864 |
| 284 | Bioengineering | 14 | 449 | 2229 | 2644 |
| 285 | Engineering | 23 | 445 | 1636 | 1609 |
| 285 | Pharmaceutical Chemistry | 26 | 445 | 1462 | 2054 |
| 287 | viruses | 15 | 444 | 636 | 888 |
| 288 | Polymers | 23 | 443 | 1958 | 2116 |
| 288 | Biometrics | 23 | 443 | 331 | 410 |
| 290 | Manufacturing Processes | 17 | 441 | 960 | 975 |
| 291 | Elderly | 33 | 439 | 285 | 226 |
| 292 | Writing | 11 | 436 | 66 | 58 |
| 293 | Engineering Geology | 12 | 430 | 694 | 607 |
| 294 | Student Health Services | 12 | 429 | 99 | 70 |
| 295 | Memory disorders | 11 | 426 | 72 | 72 |
| 296 | Organometallic chemistry | 27 | 423 | 516 | 601 |
| 297 | Business Ethics | 10 | 421 | 439 | 601 |
| 298 | Investment analysis | 12 | 418 | 290 | 244 |
| 299 | hazard mitigation | 15 | 417 | 244 | 293 |
| 300 | Agriculture | 12 | 414 | 999 | 905 |
| 301 | Ethics | 20 | 413 | 224 | 210 |
| 302 | Juvenile delinquency | 6 | 410 | 199 | 83 |
| 302 | Nanoparticles | 12 | 410 | 954 | 934 |
| 304 | Physical organic chemistry | 22 | 405 | 414 | 512 |
| 305 | miniaturization | 10 | 404 | 1067 | 1139 |
| 306 | Community Psychology | 6 | 402 | 362 | 264 |
| 307 | Molecular Genetics | 6 | 395 | 1305 | 1052 |
| 307 | polymerization | 19 | 395 | 1809 | 1891 |
| 309 | Radiation | 21 | 387 | 757 | 819 |
| 309 | Culture | 18 | 387 | 315 | 225 |
| 311 | health planning | 18 | 385 | 754 | 747 |
| 312 | Control Theory | 10 | 379 | 980 | 686 |
| 313 | Emotion | 8 | 378 | 74 | 91 |
| 314 | Petrology | 12 | 375 | 488 | 503 |
| 315 | Vocational Education | 44 | 373 | 42 | 141 |
| 315 | Genomics | 11 | 373 | 1844 | 1808 |
| 317 | Membranes | 18 | 372 | 710 | 1102 |
| 318 | Hormones | 5 | 367 | 1039 | 718 |
| 319 | Medical Physics | 17 | 366 | 760 | 929 |
| 320 | Signal Processing | 25 | 364 | 922 | 1375 |
| 320 | Quality Control | 19 | 364 | 484 | 697 |
| 320 | Animal genetics | 10 | 364 | 287 | 236 |
| 323 | Climate | 9 | 363 | 248 | 244 |
| 324 | Nutrition | 18 | 361 | 1845 | 2445 |
| 325 | Biodiversity conservation | 10 | 360 | 867 | 1261 |
| 326 | Archaeology | 22 | 355 | 404 | 471 |
| 326 | Microelectronics | 9 | 355 | 1157 | 1045 |
| 328 | Knowledge | 9 | 353 | 232 | 116 |
| 329 | Perception | 24 | 352 | 623 | 977 |
| 330 | Energy Storage | 12 | 351 | 616 | 659 |
| 331 | Medical Anthropology | 12 | 350 | 529 | 781 |
| 332 | Experimental Psychology | 13 | 348 | 215 | 270 |
| 333 | Genetic engineering | 8 | 347 | 1443 | 1331 |
| 334 | Recombinant DNA | 8 | 346 | 987 | 753 |
| 335 | Export Marketing | 6 | 345 | 81 | 104 |
| 336 | Psychosomatic Medicine | 7 | 343 | 486 | 427 |
| 337 | rehabilitation | 22 | 341 | 706 | 1136 |
| 338 | Identity | 5 | 340 | 68 | 34 |
| 338 | Self | 5 | 340 | 98 | 49 |
| 340 | Growth | 6 | 338 | 787 | 877 |
| 340 | Phylogeny | 5 | 338 | 650 | 500 |
| 342 | Systems Analysis | 9 | 335 | 574 | 369 |
| 343 | Women's health | 5 | 328 | 1006 | 498 |
| 344 | individual differences | 9 | 326 | 100 | 126 |
| 344 | internet | 8 | 326 | 931 | 772 |
| 346 | Financial management | 6 | 324 | 293 | 271 |
| 347 | Music | 60 | 323 | 58 | 234 |
| 348 | Ergonomics | 27 | 321 | 266 | 386 |
| 349 | Neurolinguistics | 9 | 318 | 208 | 250 |
| 350 | Animal ecology | 13 | 317 | 488 | 574 |
| 351 | Tourism | 10 | 315 | 794 | 915 |
| 352 | Metallurgy | 11 | 314 | 1348 | 1185 |
| 353 | health behavior | 10 | 312 | 465 | 453 |
| 354 | air | 8 | 309 | 78 | 107 |
| 355 | Ethnology | 24 | 306 | 323 | 427 |
| 356 | Robotics | 17 | 304 | 694 | 878 |
| 357 | Written communication | 5 | 303 | 51 | 37 |
| 358 | Technological Innovations | 2 | 302 | 1389 | 473 |
| 359 | Conservation Biology | 8 | 301 | 657 | 688 |
| 359 | Molecular cloning | 6 | 301 | 1095 | 776 |
| 359 | Genetic recombination | 6 | 301 | 1083 | 767 |
| 359 | Combinatorial analysis | 5 | 301 | 717 | 224 |
| 359 | Economic planning | 10 | 301 | 170 | 171 |
| 364 | Continuing Education | 107 | 300 | 3 | 55 |
| 365 | Dance | 45 | 299 | 13 | 14 |
| 366 | Production Engineering | 17 | 295 | 758 | 830 |
| 367 | Plant diseases | 10 | 292 | 1099 | 980 |
| 368 | school environment | 6 | 291 | 42 | 19 |
| 369 | energy conservation | 4 | 290 | 1889 | 1490 |
| 370 | Physical fitness | 14 | 285 | 386 | 541 |
| 370 | Quantum theory | 1 | 285 | 1416 | 404 |
| 370 | proteins | 14 | 285 | 977 | 1189 |
| 373 | Histology | 10 | 284 | 1040 | 1169 |
| 374 | Respiration | 3 | 282 | 1520 | 911 |
| 374 | Catalysts | 2 | 282 | 869 | 270 |
| 376 | Neurochemistry | 5 | 280 | 1922 | 1563 |
| 376 | Environmental Geology | 9 | 280 | 914 | 879 |
| 376 | sanitation | 5 | 280 | 1245 | 1388 |
| 379 | Physical Geography | 18 | 279 | 82 | 179 |
| 379 | Ceramics | 5 | 279 | 1296 | 746 |
| 381 | Public Relations | 8 | 278 | 209 | 144 |
| 382 | child mental health | 21 | 276 | 95 | 183 |
| 382 | Glass | 4 | 276 | 1055 | 653 |
| 382 | pottery | 4 | 276 | 1010 | 645 |
| 385 | alcoholism | 13 | 275 | 663 | 824 |
| 386 | at-risk youth | 10 | 274 | 30 | 71 |
| 387 | Industrial Engineering | 18 | 271 | 645 | 984 |
| 387 | Cognitive neuroscience | 9 | 271 | 535 | 687 |
| 387 | coal | 1 | 271 | 2504 | 1145 |
| 390 | Consumer education | 6 | 269 | 158 | 157 |
| 391 | System analysis | 18 | 267 | 876 | 1176 |
| 392 | voice | 9 | 266 | 224 | 180 |
| 393 | Urban Geography | 7 | 265 | 109 | 94 |
| 394 | Smoking | 5 | 264 | 590 | 479 |
| 394 | Metals | 8 | 264 | 1419 | 1271 |
| 396 | Regional Development | 8 | 263 | 124 | 120 |
| 396 | Development planning | 8 | 263 | 99 | 109 |
| 398 | Anatomy | 11 | 261 | 1000 | 1172 |
| 398 | Securities | 2 | 261 | 452 | 132 |
| 400 | Futures | 8 | 260 | 134 | 98 |
| 401 | Marine Biology | 12 | 259 | 1339 | 1572 |
| 402 | Oral communication | 22 | 258 | 60 | 160 |
| 403 | Industrial Safety | 10 | 257 | 548 | 573 |
| 403 | Economic Thought | 10 | 257 | 100 | 244 |
| 403 | economic conditions | 10 | 257 | 200 | 280 |
| 406 | Disability Studies | 5 | 256 | 146 | 42 |
| 406 | Nuclear family | 13 | 256 | 35 | 16 |
| 408 | Multivariate Analysis | 17 | 255 | 122 | 218 |
| 409 | Substance Abuse | 12 | 254 | 694 | 775 |
| 410 | organization | 5 | 253 | 553 | 546 |
| 411 | Paleoclimatology | 10 | 252 | 595 | 719 |
| 412 | Marriage counseling | 12 | 251 | 97 | 143 |
| 413 | Radiobiology | 14 | 248 | 681 | 946 |
| 414 | Capital market | 2 | 247 | 572 | 198 |
| 414 | computer networks | 11 | 247 | 1330 | 1440 |
| 414 | Investments | 8 | 247 | 236 | 137 |
| 417 | Literacy | 21 | 245 | 46 | 84 |
| 417 | California | 10 | 245 | 175 | 184 |
| 417 | vitamins | 1 | 245 | 320 | 70 |
| 420 | Pharmacology | 18 | 241 | 2521 | 3676 |
| 421 | Political Sociology | 6 | 240 | 285 | 207 |
| 421 | Digital Media | 2 | 240 | 244 | 68 |
| 421 | Communication in medicine | 7 | 240 | 294 | 260 |
| 421 | Online journalism | 2 | 240 | 116 | 55 |
| 421 | gene mapping | 5 | 240 | 1690 | 1600 |
| 426 | Internet of Things | 3 | 239 | 1092 | 727 |
| 427 | Computational Biology | 8 | 238 | 1640 | 1706 |
| 427 | Environmental Management | 16 | 238 | 1296 | 2315 |
| 427 | Mental Health Services | 13 | 238 | 535 | 655 |
| 427 | Autism | 5 | 238 | 522 | 486 |
| 431 | Human genetics | 3 | 237 | 2176 | 2803 |
| 431 | synthesis | 14 | 237 | 317 | 298 |
| 433 | Systems Engineering | 9 | 236 | 1291 | 1162 |
| 433 | Entrepreneurship | 8 | 236 | 477 | 698 |
| 435 | educational innovations | 13 | 235 | 146 | 236 |
| 436 | Maternal health services | 1 | 234 | 749 | 183 |
| 437 | Community Colleges | 24 | 233 | 23 | 28 |
| 438 | intervention | 13 | 232 | 26 | 19 |
| 439 | industrial hygiene | 9 | 229 | 485 | 296 |
| 439 | Strategic planning | 3 | 229 | 756 | 396 |
| 441 | Computer Graphics | 12 | 227 | 866 | 998 |
| 442 | Cybernetics | 7 | 226 | 1062 | 1019 |
| 442 | Budget | 13 | 226 | 30 | 25 |
| 444 | libraries | 22 | 225 | 97 | 178 |
| 445 | Physical Therapy | 13 | 224 | 577 | 880 |
| 445 | Food service management | 6 | 224 | 227 | 356 |
| 447 | Bioinorganic chemistry | 12 | 223 | 658 | 803 |
| 447 | correctional psychology | 4 | 223 | 181 | 133 |
| 449 | Bioenergetics | 4 | 221 | 710 | 577 |
| 449 | Energy metabolism | 4 | 221 | 489 | 456 |
| 451 | Geographic information systems | 14 | 220 | 372 | 432 |
| 452 | Information Science | 17 | 219 | 977 | 1628 |
| 453 | Environmental Microbiology | 2 | 216 | 1755 | 1213 |
| 454 | Paleoecology | 10 | 214 | 570 | 711 |
| 454 | mass transfer | 8 | 214 | 1109 | 1151 |
| 456 | Distance Education | 7 | 213 | 158 | 171 |
| 456 | school sports | 6 | 213 | 70 | 63 |
| 458 | econometric models | 4 | 211 | 513 | 316 |
| 459 | Environmental Chemistry | 5 | 210 | 1730 | 1786 |
| 459 | Mechanics | 5 | 210 | 961 | 543 |
| 461 | Mathematics Education | 16 | 209 | 100 | 145 |
| 462 | Paleogeography | 9 | 208 | 532 | 666 |
| 463 | Computer Literacy | 10 | 205 | 49 | 105 |
| 464 | Venture Capital | 5 | 203 | 190 | 361 |
| 464 | innovation | 5 | 203 | 431 | 571 |
| 466 | Environmental Policy | 13 | 197 | 1576 | 2776 |
| 466 | thinking | 2 | 197 | 404 | 132 |
| 468 | Simulation Methods | 24 | 196 | 121 | 438 |
| 469 | Federal government | 12 | 195 | 27 | 37 |
| 470 | cell membrane | 3 | 194 | 563 | 467 |
| 470 | Elections | 6 | 194 | 203 | 156 |
| 470 | women | 16 | 194 | 206 | 250 |
| 473 | analysis | 4 | 193 | 264 | 216 |
| 474 | Community Psychiatry | 5 | 192 | 764 | 693 |
| 474 | Clinical Chemistry | 7 | 192 | 2128 | 2284 |
| 474 | North America | 7 | 192 | 498 | 399 |
| 477 | environmental protection | 11 | 190 | 1940 | 2710 |
| 477 | protein | 7 | 190 | 814 | 870 |
| 479 | Sales management | 3 | 189 | 222 | 290 |
| 479 | selling | 3 | 189 | 222 | 290 |
| 481 | Tribology | 4 | 188 | 1130 | 754 |
| 482 | Mechanical Engineering | 9 | 187 | 1601 | 1252 |
| 482 | Nutrition physiology | 4 | 187 | 641 | 558 |
| 484 | dietary supplements | 3 | 185 | 905 | 566 |
| 484 | medical education | 5 | 185 | 1364 | 1041 |
| 484 | Relationships | 4 | 185 | 119 | 111 |
| 487 | Information Systems | 6 | 184 | 956 | 898 |
| 488 | Symbolic interactionism | 9 | 183 | 27 | 41 |
| 488 | Patient education | 6 | 183 | 408 | 462 |
| 488 | Wildlife conservation | 6 | 183 | 783 | 1036 |
| 488 | Groundwater | 12 | 183 | 220 | 381 |
| 492 | human development | 8 | 181 | 433 | 585 |
| 492 | Birds | 19 | 181 | 408 | 571 |
| 494 | Power Electronics | 3 | 179 | 1089 | 908 |
| 495 | Developmental Biology | 8 | 176 | 1248 | 1835 |
| 496 | Health Services Administration | 8 | 175 | 582 | 719 |
| 497 | election law | 5 | 174 | 173 | 131 |
| 498 | race relations | 6 | 171 | 369 | 314 |
| 499 | Library Science | 68 | 170 | 33 | 264 |
| 500 | drug addiction | 7 | 168 | 707 | 887 |
| 501 | Heat Exchangers | 5 | 167 | 1005 | 1048 |
| 501 | Semiconductors | 10 | 167 | 1249 | 1224 |
| 503 | Biomechanics | 5 | 166 | 1042 | 985 |
| 503 | Feminism | 11 | 166 | 225 | 244 |
| 503 | Obesity | 6 | 166 | 1465 | 1765 |
| 506 | Computational Chemistry | 6 | 165 | 428 | 490 |
| 506 | Quality Management | 9 | 165 | 56 | 58 |
| 508 | Political Parties | 4 | 164 | 154 | 123 |
| 509 | International Finance | 9 | 162 | 956 | 1127 |
| 509 | Development | 6 | 162 | 521 | 699 |
| 511 | Hydrology | 17 | 161 | 1017 | 1782 |
| 511 | genome | 8 | 161 | 960 | 1662 |
| 513 | International Relations | 15 | 160 | 389 | 493 |
| 513 | Nuclear Chemistry | 5 | 160 | 880 | 541 |
| 513 | Political Participation | 5 | 160 | 225 | 194 |
| 513 | Voting | 4 | 160 | 190 | 140 |
| 517 | Psychiatric Nursing | 12 | 159 | 252 | 359 |
| 517 | Bioinformatics | 7 | 159 | 1448 | 1708 |
| 519 | Agricultural Chemistry | 4 | 158 | 2169 | 1891 |
| 520 | Dynamics | 13 | 157 | 664 | 807 |
| 521 | Depression | 2 | 156 | 472 | 438 |
| 521 | Synchrotron Radiation | 15 | 156 | 120 | 217 |
| 521 | Energy Harvesting | 6 | 156 | 331 | 612 |
| 524 | Classroom Environment | 2 | 155 | 84 | 29 |
| 525 | Toxicology | 11 | 154 | 2810 | 3998 |
| 525 | Career development | 14 | 154 | 90 | 190 |
| 525 | social justice | 16 | 154 | 53 | 88 |
| 525 | nucleotides | 3 | 154 | 351 | 104 |
| 529 | Genes | 6 | 153 | 804 | 851 |
| 530 | Asia | 19 | 152 | 976 | 1579 |
| 531 | Experimental Design | 5 | 151 | 200 | 232 |
| 531 | Economic Assistance | 5 | 151 | 502 | 658 |
| 531 | world | 5 | 151 | 540 | 774 |
| 534 | men | 2 | 150 | 389 | 145 |
| 534 | Attention | 16 | 150 | 708 | 1379 |
| 536 | Social Change | 2 | 149 | 1254 | 1057 |
| 537 | Electrochemical Analysis | 8 | 148 | 965 | 1135 |
| 537 | Herpetology | 11 | 148 | 99 | 117 |
| 539 | Urban Economics | 4 | 146 | 285 | 323 |
| 539 | Sedimentology | 5 | 146 | 441 | 474 |
| 539 | Climate change | 3 | 146 | 1027 | 1422 |
| 539 | Eutrophication | 3 | 146 | 968 | 1398 |
| 543 | Australia | 15 | 145 | 741 | 1192 |
| 544 | Socioeconomic Factors | 7 | 143 | 444 | 610 |
| 545 | Computational Mathematics | 2 | 142 | 121 | 66 |
| 545 | bioclimatology | 4 | 142 | 779 | 664 |
| 545 | Mass Media | 14 | 142 | 247 | 277 |
| 545 | Liposomes | 6 | 142 | 324 | 438 |
| 545 | Lipid bilayers | 6 | 142 | 281 | 377 |
| 545 | Landslides | 2 | 142 | 343 | 275 |
| 551 | Language Acquisition | 5 | 141 | 201 | 164 |
| 551 | Entropy | 8 | 141 | 580 | 577 |
| 551 | Reproduction | 11 | 141 | 1246 | 1822 |
| 551 | masculinity | 1 | 141 | 188 | 68 |
| 555 | Humanities | 11 | 139 | 748 | 737 |
| 555 | Public Choice | 5 | 139 | 227 | 231 |
| 555 | Group decision making | 5 | 139 | 317 | 309 |
| 555 | Human Resources | 7 | 139 | 226 | 435 |
| 559 | Astrophysics | 10 | 138 | 1948 | 2348 |
| 559 | residential treatment | 6 | 138 | 83 | 77 |
| 561 | insurance | 9 | 137 | 149 | 202 |
| 561 | Nonprofit organizations | 11 | 137 | 87 | 211 |
| 561 | Atomic spectroscopy | 5 | 137 | 903 | 752 |
| 564 | Total Quality Management | 7 | 134 | 221 | 315 |
| 564 | family studies | 1 | 134 | 75 | 41 |
| 564 | Parenting | 1 | 134 | 106 | 47 |
| 564 | Child rearing | 1 | 134 | 106 | 47 |
| 564 | Creativity | 5 | 134 | 165 | 211 |
| 569 | Geomorphology | 4 | 133 | 1202 | 1284 |
| 570 | Optics | 17 | 132 | 2378 | 2941 |
| 570 | clay | 3 | 132 | 792 | 766 |
| 570 | clay minerals | 3 | 132 | 276 | 246 |
| 570 | sexual behavior | 9 | 132 | 293 | 526 |
| 574 | Green Chemistry | 3 | 131 | 1780 | 1852 |
| 574 | Solar Energy | 4 | 131 | 1636 | 1698 |
| 574 | Religion | 13 | 131 | 350 | 261 |
| 574 | Decision Support Systems | 5 | 131 | 72 | 72 |
| 578 | Nanostructures | 4 | 130 | 1792 | 1835 |
| 578 | Quality of life | 6 | 130 | 1038 | 1432 |
| 580 | Molecular recognition | 7 | 129 | 66 | 134 |
| 580 | technical education | 11 | 129 | 235 | 392 |
| 580 | crime victims | 13 | 129 | 15 | 68 |
| 583 | Radiology | 9 | 128 | 882 | 1006 |
| 584 | Orthopedics | 2 | 127 | 1959 | 1323 |
| 584 | Radiochemistry | 3 | 127 | 1076 | 538 |
| 584 | Risk | 3 | 127 | 554 | 486 |
| 584 | Reptiles | 10 | 127 | 88 | 120 |
| 588 | Sociolinguistics | 7 | 126 | 235 | 273 |
| 588 | Ion Exchange | 3 | 126 | 130 | 79 |
| 588 | Semigroups | 21 | 126 | 27 | 41 |
| 588 | Solvent extraction | 3 | 126 | 130 | 79 |
| 588 | Host-parasite interactions | 4 | 126 | 1130 | 1586 |
| 593 | Second Language Acquisition | 1 | 125 | 332 | 184 |
| 593 | Magnetic Resonance Spectroscopy | 11 | 125 | 596 | 813 |
| 593 | Body Image | 1 | 125 | 381 | 232 |
| 596 | Nuclear Energy | 3 | 124 | 1199 | 667 |
| 596 | Obsessive-Compulsive Disorder | 13 | 124 | 26 | 70 |
| 598 | Cartography | 2 | 122 | 614 | 196 |
| 598 | Customer service | 2 | 122 | 74 | 14 |
| 598 | Employee selection | 2 | 122 | 167 | 96 |
| 601 | Educational measurement | 13 | 121 | 46 | 105 |
| 601 | Chromatographic analysis | 6 | 121 | 1411 | 1405 |
| 601 | deviant behavior | 5 | 121 | 203 | 171 |
| 601 | DNA polymerases | 2 | 121 | 587 | 855 |
| 605 | Social perception | 5 | 120 | 78 | 122 |
| 605 | Waste management | 4 | 120 | 1323 | 1042 |
| 607 | Actuarial Science | 9 | 119 | 95 | 155 |
| 607 | Geriatric Psychiatry | 3 | 119 | 1011 | 877 |
| 607 | Water | 5 | 119 | 2018 | 2638 |
| 607 | Chromosome mapping | 3 | 119 | 1958 | 1983 |
| 611 | Comparative Physiology | 4 | 118 | 644 | 694 |
| 612 | Microbial Genetics | 4 | 117 | 272 | 324 |
| 612 | Measurement | 7 | 117 | 883 | 1047 |
| 612 | phytopathogenic bacteria | 4 | 117 | 200 | 304 |
| 615 | Paleoceanography | 3 | 116 | 173 | 241 |
| 616 | Software Engineering | 5 | 115 | 796 | 775 |
| 616 | Crystal growth | 2 | 115 | 1255 | 906 |
| 618 | Early Childhood Education | 7 | 114 | 334 | 367 |
| 619 | Electrophoresis | 5 | 113 | 1348 | 1481 |
| 619 | Chromatography | 5 | 113 | 1358 | 1336 |
| 619 | enzymes | 8 | 113 | 946 | 1498 |
| 622 | Image Processing | 9 | 112 | 1379 | 2034 |
| 623 | Occupational Therapy | 6 | 111 | 711 | 517 |
| 623 | Language Development | 4 | 111 | 79 | 90 |
| 623 | nuclear magnetic resonance | 8 | 111 | 669 | 798 |
| 623 | Auditing | 11 | 111 | 115 | 338 |
| 627 | Bacteriology | 3 | 110 | 1939 | 2075 |
| 627 | Visual Perception | 13 | 110 | 781 | 1537 |
| 629 | Race | 2 | 109 | 74 | 40 |
| 630 | Nuclear Engineering | 16 | 108 | 740 | 1124 |
| 631 | atmospheric models | 1 | 107 | 972 | 705 |
| 632 | Sustainable Development | 2 | 106 | 2549 | 2045 |
| 632 | Mathematical Economics | 1 | 106 | 491 | 284 |
| 632 | Popular culture | 13 | 106 | 133 | 168 |
| 632 | economic policy | 15 | 106 | 1028 | 1551 |
| 632 | sustainability | 2 | 106 | 1167 | 1044 |
| 637 | Land Use Planning | 3 | 105 | 365 | 413 |
| 637 | community development | 13 | 105 | 181 | 462 |
| 639 | Psychopharmacology | 5 | 104 | 1206 | 1653 |
| 639 | India | 9 | 104 | 630 | 558 |
| 641 | Photonics | 1 | 102 | 2800 | 1874 |
| 641 | psychological abuse | 2 | 102 | 9 | 13 |
| 641 | Breeding | 2 | 102 | 1469 | 1139 |
| 644 | Nonparametric Statistics | 7 | 101 | 46 | 53 |
| 645 | Metabolism | 1 | 100 | 4097 | 3152 |
| 645 | nursing education | 6 | 100 | 81 | 77 |
| 645 | Metabolic diseases | 1 | 100 | 3444 | 2676 |
| 645 | Military psychology | 7 | 100 | 42 | 60 |
| 649 | Gender identity | 9 | 99 | 92 | 143 |
| 649 | industrial relations | 8 | 99 | 439 | 580 |
| 651 | Political Psychology | 9 | 98 | 150 | 382 |
| 651 | Municipal Engineering | 2 | 98 | 453 | 298 |
| 651 | Business communication | 10 | 98 | 56 | 131 |
| 654 | Probability | 1 | 97 | 1004 | 540 |
| 654 | Risk Management | 1 | 97 | 1390 | 665 |
| 654 | Harmonic Analysis | 4 | 97 | 118 | 146 |
| 657 | disabilities | 9 | 96 | 368 | 652 |
| 657 | family counseling | 1 | 96 | 265 | 69 |
| 659 | Morphology | 2 | 95 | 1004 | 596 |
| 659 | Social interaction | 5 | 95 | 227 | 304 |
| 661 | Proteome | 6 | 94 | 862 | 1424 |
| 661 | scientific societies | 7 | 94 | 430 | 738 |
| 663 | Evolutionary Psychology | 2 | 93 | 193 | 117 |
| 663 | visualization | 11 | 93 | 754 | 847 |
| 663 | Nonlinear mechanics | 5 | 93 | 288 | 352 |
| 666 | Higher Education | 7 | 92 | 334 | 437 |
| 666 | Diabetes mellitus | 2 | 92 | 2506 | 2403 |
| 666 | Public Speaking | 9 | 92 | 65 | 64 |
| 666 | atmosphere | 1 | 92 | 1305 | 822 |
| 666 | Virulence | 2 | 92 | 1403 | 1683 |
| 666 | Immunity | 2 | 92 | 2355 | 2605 |
| 672 | speech therapy | 10 | 91 | 191 | 335 |
| 672 | terrorism | 6 | 91 | 158 | 180 |
| 672 | Adaptive control systems | 4 | 91 | 513 | 408 |
| 672 | animals | 5 | 91 | 1004 | 975 |
| 672 | language therapy | 7 | 91 | 89 | 127 |
| 672 | Jurisprudence | 2 | 91 | 1077 | 681 |
| 672 | Amphibians | 9 | 91 | 69 | 124 |
| 679 | Labor Unions | 11 | 90 | 57 | 92 |
| 679 | labor | 10 | 90 | 85 | 251 |
| 679 | Labor Movement | 9 | 90 | 47 | 50 |
| 682 | Wildlife management | 5 | 89 | 430 | 447 |
| 682 | Labor history | 8 | 89 | 16 | 9 |
| 684 | Quantum electronics | 1 | 87 | 2536 | 1400 |
| 684 | Linguistic universals | 1 | 87 | 58 | 3 |
| 684 | minority groups | 2 | 87 | 97 | 43 |
| 687 | History | 25 | 86 | 294 | 300 |
| 687 | Hydrogeology | 5 | 86 | 508 | 686 |
| 689 | Multicultural Education | 6 | 85 | 205 | 254 |
| 689 | Southeast Asia | 11 | 85 | 103 | 196 |
| 689 | Credit | 1 | 85 | 239 | 146 |
| 689 | Money | 1 | 85 | 648 | 429 |
| 693 | Criminal Law | 3 | 84 | 249 | 205 |
| 693 | Bilingual Education | 2 | 84 | 85 | 61 |
| 693 | occupational diseases | 3 | 84 | 824 | 963 |
| 693 | Qualitative Research | 4 | 84 | 405 | 440 |
| 693 | Biodiversity | 5 | 84 | 1759 | 2318 |
| 698 | Superconductors | 3 | 83 | 1073 | 798 |
| 698 | Superconductivity | 3 | 83 | 514 | 406 |
| 698 | civil service | 7 | 83 | 198 | 339 |
| 701 | Clinical Trials | 3 | 82 | 615 | 522 |
| 701 | Remote Sensing | 3 | 82 | 1609 | 1145 |
| 701 | Primary health care | 4 | 82 | 1621 | 1734 |
| 701 | Insects | 8 | 82 | 881 | 1254 |
| 701 | freshwater biology | 1 | 82 | 1483 | 924 |
| 706 | Ornithology | 13 | 81 | 421 | 765 |
| 707 | Cytogenetics | 4 | 79 | 1352 | 1953 |
| 707 | Psychometrics | 3 | 79 | 411 | 411 |
| 707 | Water quality management | 5 | 79 | 1470 | 1780 |
| 707 | Arthropods | 7 | 79 | 83 | 164 |
| 711 | Applied Linguistics | 4 | 77 | 451 | 429 |
| 711 | Systems Biology | 3 | 77 | 1706 | 1832 |
| 711 | Biomass Energy | 3 | 77 | 2417 | 2835 |
| 711 | Paleopathology | 4 | 77 | 253 | 213 |
| 715 | Cognitive Psychology | 6 | 76 | 226 | 326 |
| 716 | Geometry | 6 | 75 | 735 | 589 |
| 716 | Agricultural Ecology | 2 | 75 | 1357 | 1490 |
| 716 | Fashion merchandising | 1 | 75 | 92 | 43 |
| 716 | peace | 4 | 75 | 391 | 491 |
| 716 | Employee rights | 1 | 75 | 181 | 58 |
| 716 | Fashion | 1 | 75 | 285 | 97 |
| 716 | Recycling | 1 | 75 | 1103 | 1122 |
| 723 | Restoration Ecology | 6 | 74 | 246 | 523 |
| 723 | Hippocampus | 3 | 74 | 295 | 460 |
| 725 | Health Information Management | 2 | 73 | 390 | 718 |
| 725 | Bibliometrics | 2 | 73 | 180 | 201 |
| 725 | complementary therapies | 6 | 73 | 1140 | 1761 |
| 728 | Microbial Biotechnology | 5 | 72 | 712 | 1182 |
| 728 | Multiculturalism | 1 | 72 | 165 | 33 |
| 728 | Developmental Immunology | 4 | 72 | 508 | 820 |
| 728 | disease outbreaks | 1 | 72 | 979 | 764 |
| 728 | Epidemics | 1 | 72 | 914 | 752 |
| 728 | national security | 5 | 72 | 249 | 190 |
| 734 | Educational Leadership | 3 | 71 | 128 | 110 |
| 734 | International security | 3 | 71 | 208 | 304 |
| 734 | Approximation Theory | 6 | 71 | 251 | 280 |
| 734 | death | 5 | 71 | 203 | 222 |
| 734 | conflict management | 4 | 71 | 190 | 313 |
| 739 | Freeze-Drying | 4 | 70 | 311 | 420 |
| 739 | Hypothermia | 4 | 70 | 311 | 420 |
| 739 | Freeze Drying | 4 | 70 | 311 | 420 |
| 742 | Biosensors | 3 | 69 | 1374 | 2018 |
| 742 | Magnetic Materials | 4 | 69 | 1469 | 1588 |
| 742 | Public opinion | 3 | 69 | 413 | 478 |
| 742 | curriculum planning | 2 | 69 | 210 | 144 |
| 742 | Neurons | 1 | 69 | 994 | 1296 |
| 747 | Biogeochemical cycles | 2 | 68 | 512 | 739 |
| 747 | Africa | 5 | 68 | 1176 | 1135 |
| 747 | lasers | 1 | 68 | 3178 | 2040 |
| 750 | Fluid Mechanics | 4 | 67 | 1411 | 1506 |
| 750 | Experience | 2 | 67 | 45 | 28 |
| 752 | Economic Geography | 2 | 66 | 454 | 392 |
| 752 | Leadership | 2 | 66 | 672 | 699 |
| 752 | Detectors | 4 | 66 | 1379 | 1653 |
| 755 | Metacognition | 2 | 65 | 78 | 111 |
| 755 | Cosmochemistry | 3 | 65 | 921 | 1125 |
| 755 | feeding behavior | 4 | 65 | 607 | 984 |
| 758 | Dyslexia | 5 | 64 | 85 | 194 |
| 759 | Geriatric Medicine | 3 | 63 | 135 | 196 |
| 759 | Telecommunications | 7 | 63 | 433 | 729 |
| 759 | Molecular structure | 7 | 63 | 1696 | 2553 |
| 759 | plant communities | 4 | 63 | 919 | 1436 |
| 759 | African Americans | 6 | 63 | 101 | 123 |
| 764 | genre | 4 | 62 | 117 | 159 |
| 764 | Ocean Engineering | 3 | 62 | 1734 | 1935 |
| 764 | Geodynamics | 2 | 62 | 1012 | 1014 |
| 764 | Food | 5 | 62 | 2522 | 3713 |
| 764 | Rhetoric | 9 | 62 | 51 | 44 |
| 769 | Teratology | 2 | 61 | 357 | 398 |
| 769 | Health Services Research | 4 | 61 | 1603 | 1993 |
| 769 | Oncogenes | 1 | 61 | 1697 | 1893 |
| 769 | Plastics | 2 | 61 | 2100 | 1743 |
| 769 | Ore deposits | 2 | 61 | 647 | 614 |
| 774 | Computer Science | 4 | 60 | 1878 | 1942 |
| 774 | Fractional Calculus | 1 | 60 | 321 | 154 |
| 774 | Sexual health | 6 | 60 | 512 | 798 |
| 774 | Social policy | 7 | 60 | 581 | 960 |
| 774 | Hearing Aids | 6 | 60 | 143 | 206 |
| 779 | Number Theory | 10 | 59 | 347 | 425 |
| 779 | organizational effectiveness | 9 | 59 | 127 | 485 |
| 779 | motor skills | 2 | 59 | 258 | 221 |
| 782 | Paleobiology | 3 | 58 | 359 | 267 |
| 782 | Medical Ethics | 5 | 58 | 854 | 1064 |
| 782 | planning | 5 | 58 | 514 | 777 |
| 782 | Diabetes | 1 | 58 | 3340 | 2913 |
| 786 | Bioethics | 4 | 57 | 797 | 871 |
| 786 | Drug delivery systems | 2 | 57 | 2043 | 2227 |
| 786 | African American | 5 | 57 | 71 | 109 |
| 789 | Plant tissue culture | 1 | 56 | 1193 | 961 |
| 789 | Plant cell culture | 1 | 56 | 1099 | 949 |
| 791 | Geriatric Nursing | 9 | 55 | 215 | 451 |
| 791 | Ideology | 1 | 55 | 146 | 47 |
| 791 | healthcare disparities | 3 | 55 | 495 | 648 |
| 791 | sexual orientation | 3 | 55 | 99 | 137 |
| 791 | sports administration | 6 | 55 | 162 | 336 |
| 791 | biological invasions | 2 | 55 | 762 | 827 |
| 797 | Medical Technology | 7 | 54 | 1091 | 2265 |
| 797 | Sexuality | 1 | 54 | 580 | 316 |
| 797 | curriculum evaluation | 4 | 54 | 287 | 410 |
| 797 | cryosphere | 2 | 54 | 436 | 525 |
| 797 | weather | 1 | 54 | 1051 | 804 |
| 797 | Textile industry | 6 | 54 | 341 | 447 |
| 803 | Soil Science | 4 | 53 | 1678 | 2256 |
| 803 | Human-Computer Interaction | 3 | 53 | 1606 | 1837 |
| 803 | Combinatorial chemistry | 1 | 53 | 1310 | 1285 |
| 803 | sadness | 4 | 53 | 163 | 238 |
| 803 | urban population | 3 | 53 | 202 | 403 |
| 803 | DNA | 3 | 53 | 635 | 800 |
| 803 | antisocial personality disorder | 4 | 53 | 163 | 238 |
| 810 | Pharmaceutical Technology | 2 | 52 | 1916 | 2006 |
| 810 | China | 13 | 52 | 1460 | 3222 |
| 810 | ethanol | 3 | 52 | 510 | 646 |
| 810 | Instructional systems | 5 | 52 | 90 | 181 |
| 814 | Water pollution | 6 | 51 | 2133 | 3594 |
| 814 | ethnicity | 5 | 51 | 491 | 632 |
| 814 | History of Nursing | 4 | 51 | 25 | 7 |
| 814 | amino acids | 3 | 51 | 590 | 892 |
| 814 | Cerebral cortex | 2 | 51 | 1073 | 1286 |
| 814 | Nitric oxide | 2 | 51 | 331 | 481 |
| 814 | Insect biochemistry | 1 | 51 | 748 | 661 |
| 821 | Plant Morphology | 2 | 50 | 706 | 661 |
| 821 | Molecules | 7 | 50 | 1005 | 1444 |
| 821 | foreign exchange | 1 | 50 | 614 | 539 |
| 821 | Broadcasting | 4 | 50 | 144 | 221 |
| 821 | water supply | 1 | 50 | 1496 | 1338 |
| 821 | Spanish language | 3 | 50 | 90 | 22 |
| 821 | Appetite | 3 | 50 | 624 | 998 |
| 821 | Toxins | 6 | 50 | 547 | 1111 |
| 829 | Biogeography | 1 | 49 | 1387 | 1464 |
| 829 | Clinical Biochemistry | 2 | 49 | 1539 | 1625 |
| 829 | Radiography | 2 | 49 | 1028 | 1324 |
| 829 | Democracy | 3 | 49 | 298 | 236 |
| 829 | Radiation effects | 3 | 49 | 641 | 1009 |
| 834 | Human Capital | 7 | 48 | 87 | 383 |
| 834 | Protozoa | 1 | 48 | 741 | 609 |
| 834 | adulthood | 7 | 48 | 23 | 128 |
| 837 | Oncology | 2 | 47 | 2944 | 3704 |
| 837 | Atmospheric Physics | 2 | 47 | 1827 | 1963 |
| 837 | Virtual reality | 1 | 47 | 796 | 547 |
| 837 | Alternative Medicine | 4 | 47 | 1330 | 2160 |
| 837 | Parasitology | 2 | 47 | 2637 | 2635 |
| 837 | Computational Complexity | 3 | 47 | 1039 | 1024 |
| 843 | Communication and Culture | 4 | 46 | 198 | 249 |
| 843 | Democratization | 2 | 46 | 164 | 191 |
| 843 | child behavior | 2 | 46 | 474 | 557 |
| 846 | Feminist criticism | 1 | 45 | 248 | 115 |
| 846 | soil microbiology | 2 | 45 | 1795 | 2464 |
| 846 | DNS | 2 | 45 | 719 | 845 |
| 846 | Performance | 7 | 45 | 146 | 371 |
| 846 | biomedicine | 6 | 45 | 317 | 961 |
| 851 | Planetary Science | 1 | 44 | 878 | 578 |
| 851 | Water Microbiology | 1 | 44 | 948 | 785 |
| 851 | isomerism | 3 | 44 | 310 | 384 |
| 851 | questioning | 3 | 44 | 42 | 48 |
| 851 | Sites | 3 | 44 | 541 | 866 |
| 851 | Chirality | 3 | 44 | 310 | 384 |
| 857 | Biogeochemistry | 2 | 43 | 1307 | 1732 |
| 857 | Developmental Neurobiology | 3 | 43 | 519 | 755 |
| 859 | Composite Materials | 3 | 42 | 2676 | 3456 |
| 859 | global environmental change | 1 | 42 | 1451 | 1509 |
| 859 | Radio waves | 4 | 42 | 833 | 1275 |
| 859 | disaster relief | 3 | 42 | 198 | 377 |
| 859 | environmental issues | 1 | 42 | 838 | 779 |
| 864 | Pharmacy | 3 | 41 | 2270 | 3010 |
| 864 | Energy Policy | 3 | 41 | 2726 | 3963 |
| 864 | Medical Oncology | 2 | 41 | 2307 | 2748 |
| 864 | Algorithms | 3 | 41 | 723 | 784 |
| 864 | Wireless Communication Systems | 3 | 41 | 2334 | 2593 |
| 864 | Coatings | 4 | 41 | 45 | 45 |
| 864 | international trade | 4 | 41 | 616 | 859 |
| 864 | Paint | 4 | 41 | 19 | 44 |
| 864 | Algal blooms | 1 | 41 | 518 | 572 |
| 864 | catalytic activity | 1 | 41 | 971 | 928 |
| 864 | Cyanobacteria | 1 | 41 | 518 | 572 |
| 864 | school failure | 4 | 41 | 50 | 75 |
| 864 | microalgae | 1 | 41 | 518 | 572 |
| 877 | Urban Policy | 2 | 40 | 1016 | 1242 |
| 877 | Hydrometeorology | 5 | 40 | 148 | 459 |
| 877 | mutagens | 2 | 40 | 1037 | 1493 |
| 880 | Ecological Genetics | 2 | 39 | 828 | 807 |
| 880 | Calculus of Variations | 3 | 39 | 464 | 474 |
| 880 | Popular Music | 11 | 39 | 5 | 26 |
| 880 | Radioisotopes | 3 | 39 | 1249 | 1320 |
| 884 | Electrical Engineering | 53 | 38 | 777 | 3211 |
| 884 | Marine Ecology | 2 | 38 | 962 | 1059 |
| 884 | Hydraulic Engineering | 3 | 38 | 962 | 1228 |
| 884 | locomotion | 2 | 38 | 790 | 962 |
| 884 | posture | 2 | 38 | 790 | 962 |
| 884 | gait | 2 | 38 | 790 | 962 |
| 884 | walking | 2 | 38 | 790 | 962 |
| 891 | Analytical Biochemistry | 5 | 37 | 1456 | 2500 |
| 891 | Ethnic relations | 5 | 37 | 410 | 599 |
| 891 | mutation | 4 | 37 | 563 | 1127 |
| 891 | Plant breeding | 1 | 37 | 1379 | 1198 |
| 891 | Transgenic plants | 1 | 37 | 900 | 935 |
| 891 | Chromosomes | 4 | 37 | 876 | 1561 |
| 891 | Therapeutics | 3 | 37 | 1860 | 2895 |
| 891 | Navier-Stokes equations | 3 | 37 | 132 | 138 |
| 891 | venom | 5 | 37 | 555 | 1165 |
| 900 | Sports Psychology | 3 | 36 | 99 | 234 |
| 900 | Transportation | 1 | 36 | 2543 | 2191 |
| 900 | forestry | 1 | 36 | 412 | 374 |
| 900 | Roads | 1 | 36 | 1210 | 818 |
| 900 | administrative agencies | 1 | 36 | 511 | 367 |
| 905 | Game Theory | 2 | 35 | 652 | 631 |
| 905 | Postcolonialism | 2 | 35 | 166 | 100 |
| 905 | colonies | 2 | 35 | 47 | 35 |
| 905 | curriculum | 1 | 35 | 151 | 99 |
| 905 | primary prevention | 5 | 35 | 285 | 776 |
| 910 | Intercultural Communication | 9 | 34 | 141 | 618 |
| 910 | Chemical Ecology | 2 | 34 | 627 | 942 |
| 910 | Pediatric Nursing | 1 | 34 | 770 | 639 |
| 910 | Obstetric Nursing | 1 | 34 | 504 | 440 |
| 910 | Cross-Cultural Studies | 9 | 34 | 306 | 1122 |
| 910 | Well-being | 1 | 34 | 312 | 239 |
| 910 | Applied Ethics | 2 | 34 | 174 | 143 |
| 910 | Consciousness | 7 | 34 | 243 | 641 |
| 918 | Demography | 2 | 33 | 856 | 1071 |
| 918 | Integrated Circuits | 3 | 33 | 905 | 783 |
| 918 | Executive Power | 3 | 33 | 93 | 93 |
| 918 | nursing ethics | 2 | 33 | 283 | 469 |
| 918 | Small Business | 3 | 33 | 708 | 1287 |
| 918 | Bioelectronics | 1 | 33 | 1838 | 2251 |
| 918 | Cell metabolism | 1 | 33 | 1208 | 1510 |
| 925 | Phenomenology | 5 | 32 | 134 | 181 |
| 925 | Community Health Nursing | 1 | 32 | 157 | 113 |
| 925 | Animal Nutrition | 2 | 32 | 718 | 859 |
| 925 | Inclusive Education | 3 | 32 | 153 | 317 |
| 925 | Nationalism | 2 | 32 | 428 | 362 |
| 925 | Noise | 3 | 32 | 141 | 177 |
| 925 | microwave communication systems | 2 | 32 | 509 | 581 |
| 925 | Integration | 1 | 32 | 340 | 316 |
| 925 | environmental exposure | 1 | 32 | 3166 | 3159 |
| 925 | Evolution equations | 1 | 32 | 290 | 126 |
| 925 | cultural pluralism | 3 | 32 | 388 | 547 |
| 925 | Microwave devices | 2 | 32 | 629 | 666 |
| 925 | children | 2 | 32 | 578 | 708 |
| 938 | Otolaryngology | 1 | 31 | 965 | 811 |
| 938 | Nanochemistry | 2 | 31 | 1577 | 1875 |
| 938 | Public Health Administration | 1 | 31 | 566 | 386 |
| 938 | Stochastic Processes | 7 | 31 | 487 | 1121 |
| 938 | Geomagnetism | 1 | 31 | 904 | 882 |
| 938 | Cultural diversity | 1 | 31 | 281 | 322 |
| 938 | Urban Education | 4 | 31 | 78 | 162 |
| 938 | Carcinogenesis | 1 | 31 | 1702 | 1890 |
| 938 | Religion and Sociology | 4 | 31 | 160 | 212 |
| 938 | carcinogens | 1 | 31 | 1689 | 1823 |
| 938 | population geography | 2 | 31 | 481 | 625 |
| 938 | drugs | 3 | 31 | 2313 | 3339 |
| 938 | Multiple sclerosis | 3 | 31 | 621 | 805 |
| 938 | Leisure | 2 | 31 | 395 | 571 |
| 952 | Plant Taxonomy | 2 | 30 | 507 | 589 |
| 952 | Organizational change | 3 | 30 | 707 | 1070 |
| 952 | Wetland ecology | 1 | 30 | 901 | 788 |
| 952 | Wetland conservation | 1 | 30 | 652 | 603 |
| 952 | Japan | 5 | 30 | 1674 | 2661 |
| 952 | Prisons | 6 | 30 | 181 | 399 |
| 952 | cell physiology | 3 | 30 | 1593 | 2675 |
| 952 | Steroids | 4 | 30 | 883 | 1646 |
| 952 | Prospecting | 1 | 30 | 205 | 120 |
| 952 | Wetlands | 1 | 30 | 666 | 606 |
| 962 | Obstetrics | 3 | 29 | 2474 | 3402 |
| 962 | Materials Engineering | 2 | 29 | 981 | 1016 |
| 962 | Fracture mechanics | 2 | 29 | 1745 | 1989 |
| 962 | Happiness | 2 | 29 | 551 | 859 |
| 962 | Hospitality industry | 3 | 29 | 364 | 754 |
| 962 | Microwaves | 4 | 29 | 1326 | 1694 |
| 968 | Medical Sociology | 1 | 28 | 112 | 123 |
| 968 | Risk assessment | 2 | 28 | 859 | 1047 |
| 968 | ecological risk assessment | 2 | 28 | 356 | 563 |
| 968 | Intelligent Control Systems | 2 | 28 | 1492 | 1370 |
| 968 | Latin America | 5 | 28 | 784 | 980 |
| 968 | ecosystem | 1 | 28 | 2069 | 2361 |
| 968 | heredity | 3 | 28 | 665 | 1062 |
| 968 | cataloging | 27 | 28 | 6 | 73 |
| 968 | Health Risk Assessment | 2 | 28 | 640 | 829 |
| 968 | Heterocyclic compounds | 4 | 28 | 878 | 1206 |
| 978 | Children's Literature | 2 | 27 | 111 | 50 |
| 978 | Ecophysiology | 1 | 27 | 446 | 475 |
| 978 | Action Research | 1 | 27 | 455 | 375 |
| 978 | Luminescence | 5 | 27 | 1068 | 1840 |
| 978 | Trace elements | 1 | 27 | 562 | 711 |
| 978 | listening | 3 | 27 | 24 | 67 |
| 984 | Acoustics | 2 | 26 | 509 | 429 |
| 984 | intergroup relations | 2 | 26 | 217 | 380 |
| 984 | Gene expression regulation | 2 | 26 | 1286 | 1775 |
| 984 | Educational Change | 1 | 26 | 141 | 164 |
| 984 | Genetic regulation | 2 | 26 | 1469 | 2074 |
| 984 | Continental shelf | 1 | 26 | 627 | 714 |
| 984 | dissociative disorders | 3 | 26 | 103 | 283 |
| 984 | Europa | 1 | 26 | 820 | 828 |
| 992 | Journalism | 3 | 25 | 500 | 604 |
| 992 | History of Medicine | 4 | 25 | 330 | 303 |
| 992 | Educational Anthropology | 4 | 25 | 71 | 159 |
| 992 | Social Ethics | 4 | 25 | 141 | 234 |
| 992 | sedimentary basins | 2 | 25 | 260 | 437 |
| 992 | poverty | 1 | 25 | 846 | 889 |
| 992 | Soft Condensed Matter | 5 | 25 | 870 | 1733 |
| 992 | paraphilias | 1 | 25 | 331 | 380 |
| 992 | Sedimentary rocks | 1 | 25 | 914 | 974 |