| 1 | Physics | 506 | 28.5K | 749 | 810 |
| 2 | Nuclear Physics | 531 | 26.7K | 352 | 262 |
| 3 | United States | 933 | 19.3K | 108 | 141 |
| 4 | Chemistry | 331 | 14.9K | 1055 | 977 |
| 5 | Psychology | 478 | 14.1K | 193 | 226 |
| 6 | Biology | 252 | 12.9K | 925 | 1215 |
| 7 | Solid State Physics | 324 | 10.8K | 347 | 311 |
| 8 | Condensed Matter | 312 | 10.7K | 320 | 316 |
| 9 | Science | 193 | 10.0K | 1246 | 1479 |
| 10 | Behavior | 182 | 9.4K | 227 | 221 |
| 11 | management | 105 | 8.8K | 378 | 262 |
| 12 | Education | 480 | 8.4K | 79 | 138 |
| 13 | Mathematical Physics | 16 | 7.8K | 1297 | 148 |
| 14 | Business | 67 | 7.4K | 256 | 138 |
| 15 | human behavior | 99 | 7.3K | 248 | 202 |
| 16 | Public Health | 61 | 5.9K | 1054 | 499 |
| 17 | Mathematics | 485 | 5.7K | 298 | 345 |
| 18 | Ecology | 107 | 5.6K | 1023 | 972 |
| 19 | Biochemistry | 197 | 5.5K | 1357 | 1516 |
| 20 | behavior therapy | 65 | 5.4K | 95 | 34 |
| 21 | Catalysis | 40 | 5.1K | 1252 | 584 |
| 22 | Educational Psychology | 145 | 5.1K | 67 | 89 |
| 23 | Neurology | 78 | 5.0K | 1156 | 964 |
| 24 | Microbiology | 82 | 4.9K | 1372 | 1122 |
| 25 | Quantum Gravity | 153 | 4.8K | 345 | 367 |
| 26 | Statistics | 208 | 4.8K | 139 | 200 |
| 27 | Social Psychology | 134 | 4.7K | 182 | 240 |
| 28 | Psychiatry | 175 | 4.7K | 403 | 621 |
| 29 | Molecular Biology | 87 | 4.4K | 1786 | 1639 |
| 30 | marketing | 66 | 4.4K | 237 | 199 |
| 31 | Clinical Psychology | 59 | 4.3K | 186 | 142 |
| 32 | Psychophysiology | 148 | 4.3K | 301 | 424 |
| 33 | psychotherapy | 47 | 4.2K | 234 | 137 |
| 34 | Materials | 80 | 4.1K | 1471 | 1117 |
| 35 | Medicine | 126 | 4.0K | 1737 | 1938 |
| 36 | child abuse | 78 | 4.0K | 53 | 42 |
| 37 | nucleic acids | 14 | 3.8K | 844 | 374 |
| 38 | Vocational guidance | 91 | 3.7K | 65 | 68 |
| 39 | Child psychology | 117 | 3.6K | 146 | 227 |
| 40 | personality | 86 | 3.5K | 151 | 197 |
| 41 | Social Sciences | 175 | 3.5K | 176 | 209 |
| 42 | Research | 104 | 3.3K | 1582 | 1557 |
| 43 | Sociology | 132 | 3.3K | 243 | 296 |
| 44 | Family | 92 | 2.9K | 63 | 59 |
| 45 | Natural history | 41 | 2.9K | 908 | 1790 |
| 46 | Geology | 73 | 2.8K | 620 | 477 |
| 47 | Environment | 40 | 2.8K | 1375 | 1270 |
| 48 | Learning | 59 | 2.8K | 162 | 168 |
| 49 | Adolescent | 60 | 2.8K | 304 | 196 |
| 50 | Neurophysiology | 81 | 2.7K | 501 | 650 |
| 51 | Personality Assessment | 23 | 2.6K | 129 | 45 |
| 52 | Materials Science | 87 | 2.6K | 899 | 985 |
| 53 | Public Policy | 21 | 2.5K | 530 | 160 |
| 54 | commerce | 10 | 2.5K | 755 | 175 |
| 55 | Mental Disorders | 26 | 2.5K | 965 | 589 |
| 56 | Meteorology | 58 | 2.4K | 426 | 477 |
| 57 | Nanotechnology | 59 | 2.4K | 1285 | 1246 |
| 58 | Environmental Health | 39 | 2.4K | 1501 | 1123 |
| 59 | Special Education | 101 | 2.4K | 51 | 49 |
| 60 | mathematical analysis | 127 | 2.3K | 176 | 143 |
| 61 | Audiology | 43 | 2.3K | 143 | 87 |
| 62 | Child Development | 57 | 2.3K | 328 | 313 |
| 63 | Brain | 73 | 2.3K | 526 | 596 |
| 64 | Organic Chemistry | 79 | 2.3K | 549 | 549 |
| 65 | adolescence | 36 | 2.3K | 163 | 105 |
| 66 | Health Policy | 19 | 2.3K | 784 | 262 |
| 67 | Economics | 152 | 2.3K | 456 | 653 |
| 68 | Advertising | 8 | 2.3K | 123 | 13 |
| 69 | Epidemiology | 15 | 2.3K | 1739 | 622 |
| 70 | Mental illness | 14 | 2.2K | 908 | 437 |
| 71 | violence | 83 | 2.2K | 53 | 87 |
| 72 | Animal Behavior | 58 | 2.2K | 330 | 376 |
| 73 | Cognition | 54 | 2.2K | 306 | 291 |
| 74 | Public Administration | 76 | 2.1K | 123 | 131 |
| 75 | health services accessibility | 7 | 2.1K | 603 | 52 |
| 76 | Health | 48 | 2.1K | 373 | 278 |
| 77 | Production Management | 19 | 2.1K | 343 | 214 |
| 78 | Botany | 64 | 2.0K | 870 | 973 |
| 79 | Cytology | 37 | 2.0K | 1370 | 1440 |
| 80 | Teaching | 72 | 2.0K | 166 | 173 |
| 81 | families | 59 | 1.9K | 70 | 55 |
| 82 | Communication | 122 | 1.9K | 130 | 308 |
| 83 | Climatology | 48 | 1.9K | 341 | 372 |
| 84 | Criminal psychology | 39 | 1.9K | 127 | 87 |
| 85 | Biotechnology | 41 | 1.8K | 1750 | 1740 |
| 86 | Biophysics | 89 | 1.8K | 1167 | 1490 |
| 87 | School Psychology | 70 | 1.8K | 36 | 49 |
| 88 | Psycholinguistics | 31 | 1.8K | 207 | 168 |
| 89 | Virology | 45 | 1.8K | 782 | 1190 |
| 90 | Youth | 26 | 1.7K | 128 | 78 |
| 91 | Ethology | 38 | 1.7K | 339 | 379 |
| 92 | Operations Research | 33 | 1.7K | 586 | 360 |
| 93 | Sports | 83 | 1.7K | 249 | 330 |
| 94 | Medical Laboratory Science | 12 | 1.7K | 1126 | 471 |
| 95 | Health Education | 80 | 1.7K | 220 | 259 |
| 96 | Physiology | 46 | 1.7K | 1082 | 1063 |
| 97 | Telecommunication | 15 | 1.7K | 1284 | 523 |
| 98 | biological evolution | 36 | 1.7K | 516 | 596 |
| 99 | Speech | 64 | 1.7K | 104 | 132 |
| 100 | Pediatrics | 26 | 1.6K | 795 | 615 |
| 100 | behavioral medicine | 11 | 1.6K | 598 | 256 |
| 102 | Reading | 81 | 1.6K | 28 | 55 |
| 103 | Evolution | 25 | 1.6K | 568 | 492 |
| 104 | Nervous system | 17 | 1.6K | 1065 | 673 |
| 105 | Solid State Chemistry | 52 | 1.6K | 485 | 348 |
| 106 | Speech Disorders | 85 | 1.6K | 118 | 168 |
| 106 | Classification | 30 | 1.6K | 15 | 30 |
| 108 | Learning disabilities | 77 | 1.5K | 56 | 78 |
| 109 | counseling | 134 | 1.5K | 77 | 197 |
| 110 | Criminology | 23 | 1.5K | 274 | 117 |
| 111 | Anthropology | 107 | 1.5K | 127 | 185 |
| 112 | Architecture | 4 | 1.5K | 448 | 8 |
| 113 | Astronomy | 21 | 1.5K | 1269 | 955 |
| 114 | construction | 3 | 1.5K | 178 | 4 |
| 115 | behavior modification | 41 | 1.5K | 62 | 91 |
| 116 | Chemical Engineering | 28 | 1.5K | 1841 | 1456 |
| 116 | Electronics | 41 | 1.5K | 1023 | 766 |
| 118 | finance | 61 | 1.5K | 356 | 381 |
| 119 | Nursing | 83 | 1.5K | 144 | 152 |
| 120 | Environmental Toxicology | 9 | 1.5K | 1459 | 550 |
| 121 | Physical Chemistry | 24 | 1.5K | 766 | 536 |
| 122 | Economic History | 75 | 1.4K | 433 | 461 |
| 123 | Pollution | 34 | 1.4K | 1822 | 1846 |
| 124 | Exercise | 57 | 1.4K | 133 | 159 |
| 125 | Primates | 37 | 1.3K | 113 | 97 |
| 126 | Intellectual disability | 77 | 1.3K | 65 | 119 |
| 127 | Spectrum analysis | 108 | 1.3K | 693 | 1260 |
| 128 | Neuropsychology | 56 | 1.3K | 418 | 535 |
| 129 | recreation | 98 | 1.3K | 26 | 49 |
| 130 | Nanostructured Materials | 22 | 1.3K | 1298 | 930 |
| 131 | Social behavior | 30 | 1.3K | 262 | 252 |
| 132 | Anxiety Disorders | 18 | 1.3K | 156 | 154 |
| 132 | Anxiety | 18 | 1.3K | 158 | 154 |
| 134 | Post-traumatic stress disorder | 29 | 1.2K | 154 | 164 |
| 135 | Biocompatible Materials | 22 | 1.2K | 1570 | 1468 |
| 136 | Suicide | 13 | 1.1K | 199 | 65 |
| 137 | Mental Health | 21 | 1.1K | 520 | 256 |
| 138 | Radio | 6 | 1.1K | 1184 | 467 |
| 139 | Philosophy | 99 | 1.1K | 178 | 160 |
| 140 | crime | 14 | 1.1K | 252 | 95 |
| 141 | Geophysics | 47 | 1.1K | 997 | 1181 |
| 142 | Occupational Health | 15 | 1.1K | 345 | 138 |
| 143 | Geochemistry | 25 | 1.1K | 735 | 654 |
| 144 | Pediatric Neurology | 6 | 1.1K | 714 | 463 |
| 145 | Algebra | 100 | 1.1K | 90 | 100 |
| 146 | Sports Medicine | 53 | 1.1K | 473 | 583 |
| 147 | Language Disorders | 32 | 1.0K | 183 | 154 |
| 148 | Family Therapy | 67 | 1.0K | 50 | 93 |
| 149 | Political Science | 55 | 1.0K | 288 | 319 |
| 150 | Mycology | 23 | 1.0K | 494 | 388 |
| 151 | Adult Education | 130 | 999 | 5 | 18 |
| 152 | epilepsy | 12 | 995 | 431 | 170 |
| 153 | Meteorites | 18 | 990 | 387 | 400 |
| 154 | Information Theory | 10 | 971 | 758 | 335 |
| 155 | Developmental Psychology | 33 | 968 | 204 | 297 |
| 156 | sex crimes | 39 | 967 | 61 | 69 |
| 157 | Paleontology | 28 | 963 | 372 | 265 |
| 158 | Renewable Energy Sources | 10 | 954 | 1576 | 1189 |
| 159 | Artificial Intelligence | 18 | 949 | 1606 | 1117 |
| 160 | Emotions | 23 | 947 | 133 | 161 |
| 161 | Plants | 11 | 939 | 1084 | 744 |
| 162 | Decision making | 22 | 935 | 377 | 310 |
| 163 | Analytical Chemistry | 52 | 934 | 1212 | 1582 |
| 164 | Linguistics | 26 | 932 | 321 | 228 |
| 165 | Diet | 29 | 931 | 566 | 767 |
| 166 | plant molecular biology | 10 | 927 | 842 | 679 |
| 167 | Europe | 39 | 921 | 765 | 716 |
| 168 | Organizational Behavior | 20 | 907 | 143 | 190 |
| 169 | Electrochemistry | 84 | 905 | 827 | 1238 |
| 170 | Statistical physics | 23 | 904 | 1375 | 1059 |
| 171 | nanoscience | 19 | 901 | 1251 | 1142 |
| 172 | Genetics | 30 | 877 | 1264 | 1775 |
| 173 | Microbial Ecology | 17 | 860 | 929 | 988 |
| 174 | Politics | 26 | 859 | 105 | 86 |
| 174 | government | 25 | 859 | 142 | 113 |
| 176 | Memory | 29 | 849 | 529 | 611 |
| 177 | Numerical Analysis | 26 | 848 | 704 | 410 |
| 178 | Gerontology | 47 | 843 | 367 | 415 |
| 179 | Cognitive Science | 21 | 840 | 438 | 461 |
| 179 | school psychologists | 36 | 840 | 22 | 51 |
| 181 | environmental pollution | 25 | 839 | 1667 | 1840 |
| 182 | Stress | 16 | 836 | 20 | 7 |
| 183 | Earth Sciences | 38 | 827 | 870 | 1028 |
| 183 | family violence | 19 | 827 | 83 | 73 |
| 185 | Dietetics | 27 | 824 | 161 | 143 |
| 185 | biocatalysis | 2 | 824 | 249 | 158 |
| 185 | Homogeneous catalysis | 2 | 824 | 249 | 158 |
| 185 | Heterogeneous catalysis | 2 | 824 | 249 | 158 |
| 189 | Differential Equations | 35 | 823 | 159 | 144 |
| 189 | Child | 29 | 823 | 684 | 619 |
| 191 | Aging | 46 | 822 | 603 | 870 |
| 192 | Health promotion | 18 | 820 | 357 | 279 |
| 193 | Socialization | 21 | 818 | 110 | 129 |
| 194 | role | 20 | 816 | 75 | 87 |
| 195 | preventive medicine | 10 | 791 | 614 | 387 |
| 196 | Hearing | 49 | 790 | 113 | 163 |
| 197 | Economic Development | 26 | 778 | 383 | 524 |
| 198 | Biomedical Engineering | 29 | 768 | 1738 | 1876 |
| 199 | Adolescent Medicine | 4 | 761 | 483 | 290 |
| 200 | Nonlinear Dynamics | 17 | 758 | 884 | 644 |
| 201 | Zoology | 30 | 753 | 741 | 631 |
| 201 | elder abuse | 13 | 753 | 84 | 31 |
| 203 | Geography | 37 | 752 | 461 | 602 |
| 204 | Endocrinology | 15 | 749 | 1433 | 1365 |
| 205 | Technology | 20 | 745 | 1631 | 1227 |
| 206 | weather forecasting | 10 | 741 | 68 | 33 |
| 207 | Plant Ecology | 16 | 739 | 729 | 695 |
| 208 | Cell Biology | 16 | 736 | 2003 | 2206 |
| 209 | Portfolio Management | 22 | 730 | 51 | 34 |
| 210 | Automation | 28 | 729 | 700 | 842 |
| 211 | energy development | 6 | 726 | 526 | 319 |
| 212 | motivation | 27 | 716 | 37 | 80 |
| 213 | Geriatrics | 47 | 705 | 640 | 929 |
| 214 | Econometrics | 25 | 697 | 397 | 391 |
| 215 | probabilities | 32 | 695 | 323 | 199 |
| 216 | Fungi | 9 | 693 | 580 | 397 |
| 217 | Cognitive Therapy | 20 | 691 | 151 | 130 |
| 218 | Social problems | 18 | 689 | 148 | 167 |
| 218 | language | 26 | 689 | 163 | 242 |
| 220 | Neurobiology | 6 | 681 | 1261 | 878 |
| 220 | Planets | 26 | 681 | 567 | 748 |
| 222 | natural disasters | 20 | 675 | 307 | 311 |
| 223 | Sound | 20 | 673 | 346 | 249 |
| 224 | Developmental Disabilities | 20 | 672 | 322 | 375 |
| 225 | Educational Technology | 48 | 671 | 143 | 343 |
| 226 | Industrial Microbiology | 15 | 670 | 773 | 761 |
| 227 | Discourse Analysis | 27 | 663 | 25 | 58 |
| 228 | Human evolution | 18 | 660 | 119 | 143 |
| 228 | Aggression | 24 | 660 | 71 | 130 |
| 228 | Plant cells | 2 | 660 | 1248 | 724 |
| 231 | Functional Analysis | 36 | 651 | 225 | 249 |
| 232 | Organometallic compounds | 32 | 637 | 249 | 351 |
| 233 | Social work | 23 | 627 | 425 | 305 |
| 234 | Gender Studies | 23 | 621 | 44 | 62 |
| 235 | Speech Perception | 12 | 618 | 137 | 122 |
| 235 | auditory perception | 12 | 618 | 165 | 134 |
| 237 | Optical materials | 12 | 611 | 1476 | 1209 |
| 238 | Oceanography | 15 | 609 | 800 | 689 |
| 239 | Marriage | 24 | 608 | 91 | 97 |
| 240 | Surface Chemistry | 29 | 607 | 1435 | 1677 |
| 241 | Social Issues | 13 | 601 | 72 | 58 |
| 242 | Mass Spectrometry | 29 | 598 | 290 | 398 |
| 243 | older people | 43 | 593 | 307 | 331 |
| 244 | fuel cells | 18 | 591 | 500 | 632 |
| 245 | local government | 17 | 586 | 61 | 53 |
| 246 | Child welfare | 14 | 580 | 394 | 256 |
| 247 | Human Geography | 24 | 569 | 285 | 287 |
| 248 | Intelligence | 5 | 567 | 179 | 91 |
| 249 | Environmental Education | 17 | 562 | 59 | 57 |
| 249 | Developing countries | 35 | 562 | 464 | 720 |
| 251 | Information Technology | 18 | 561 | 870 | 806 |
| 252 | Molecular Microbiology | 8 | 547 | 506 | 502 |
| 253 | homosexuality | 23 | 543 | 55 | 79 |
| 254 | Entomology | 35 | 540 | 581 | 667 |
| 255 | Biochemical Engineering | 12 | 537 | 1875 | 2161 |
| 256 | mammals | 22 | 534 | 246 | 263 |
| 257 | Nonlinear functional analysis | 31 | 530 | 171 | 208 |
| 258 | Process Control | 4 | 529 | 793 | 430 |
| 259 | vibration | 19 | 524 | 368 | 349 |
| 259 | psychopathology | 5 | 524 | 251 | 140 |
| 261 | Regional Planning | 28 | 523 | 386 | 502 |
| 262 | Molecular evolution | 13 | 522 | 640 | 674 |
| 263 | Environmental monitoring | 5 | 521 | 3273 | 1975 |
| 264 | particle accelerators | 21 | 517 | 37 | 35 |
| 264 | particle beams | 21 | 517 | 37 | 35 |
| 266 | city planning | 30 | 510 | 351 | 493 |
| 267 | Structural dynamics | 15 | 508 | 399 | 422 |
| 268 | Law | 13 | 500 | 482 | 174 |
| 269 | Mineralogy | 17 | 490 | 567 | 529 |
| 270 | health services | 15 | 482 | 384 | 303 |
| 271 | Colloids | 23 | 481 | 1558 | 1918 |
| 272 | Queer Studies | 17 | 474 | 29 | 58 |
| 273 | Crystallography | 57 | 471 | 237 | 366 |
| 274 | United Kingdom | 13 | 469 | 712 | 752 |
| 275 | Plant physiology | 6 | 468 | 1549 | 1159 |
| 276 | Photochemistry | 25 | 467 | 414 | 632 |
| 276 | Light | 24 | 467 | 227 | 640 |
| 278 | Investments | 13 | 466 | 143 | 70 |
| 279 | Environmental Engineering | 21 | 464 | 1447 | 1850 |
| 280 | Adolescent Psychology | 14 | 461 | 315 | 348 |
| 281 | Bioorganic chemistry | 19 | 456 | 1262 | 1445 |
| 282 | Ophthalmology | 9 | 450 | 1176 | 862 |
| 283 | Research Design | 13 | 449 | 482 | 491 |
| 284 | viruses | 15 | 442 | 640 | 890 |
| 285 | Bioengineering | 14 | 439 | 2239 | 2643 |
| 286 | Engineering | 23 | 438 | 1667 | 1615 |
| 286 | Polymers | 23 | 438 | 1986 | 2121 |
| 288 | Elderly | 33 | 436 | 293 | 224 |
| 289 | Pharmaceutical Chemistry | 26 | 435 | 1470 | 2060 |
| 289 | Biometrics | 23 | 435 | 331 | 411 |
| 291 | Manufacturing Processes | 17 | 434 | 982 | 988 |
| 292 | Energy Conversion | 13 | 431 | 616 | 878 |
| 293 | Engineering Geology | 12 | 427 | 704 | 603 |
| 294 | Writing | 11 | 424 | 68 | 61 |
| 294 | Student Health Services | 12 | 424 | 102 | 71 |
| 296 | Memory disorders | 11 | 420 | 75 | 73 |
| 297 | Organometallic chemistry | 27 | 419 | 520 | 590 |
| 298 | Business Ethics | 10 | 417 | 445 | 601 |
| 299 | Investment analysis | 12 | 413 | 297 | 236 |
| 300 | hazard mitigation | 15 | 411 | 247 | 293 |
| 300 | Agriculture | 12 | 411 | 1003 | 901 |
| 302 | Juvenile delinquency | 6 | 407 | 204 | 84 |
| 303 | Physical organic chemistry | 22 | 403 | 420 | 523 |
| 304 | Community Psychology | 6 | 399 | 363 | 264 |
| 305 | miniaturization | 10 | 394 | 1073 | 1135 |
| 306 | Nanoparticles | 12 | 393 | 961 | 942 |
| 307 | polymerization | 19 | 390 | 1832 | 1905 |
| 308 | Ethics | 20 | 386 | 231 | 227 |
| 308 | Molecular Genetics | 6 | 386 | 1306 | 1071 |
| 310 | health planning | 18 | 381 | 766 | 751 |
| 311 | Radiation | 21 | 380 | 770 | 829 |
| 312 | Emotion | 8 | 375 | 80 | 94 |
| 313 | Vocational Education | 45 | 374 | 40 | 146 |
| 314 | Petrology | 12 | 371 | 492 | 505 |
| 315 | Control Theory | 10 | 370 | 988 | 691 |
| 315 | Membranes | 18 | 370 | 719 | 1109 |
| 317 | Hormones | 5 | 367 | 1049 | 716 |
| 318 | Medical Physics | 17 | 366 | 759 | 924 |
| 319 | Genomics | 11 | 363 | 1850 | 1819 |
| 320 | Signal Processing | 25 | 362 | 934 | 1377 |
| 320 | Quality Control | 19 | 362 | 486 | 696 |
| 322 | Animal genetics | 10 | 361 | 289 | 231 |
| 322 | Climate | 9 | 361 | 255 | 246 |
| 324 | Culture | 18 | 360 | 317 | 245 |
| 325 | Nutrition | 18 | 355 | 1856 | 2444 |
| 326 | Biodiversity conservation | 10 | 349 | 873 | 1268 |
| 326 | Knowledge | 9 | 349 | 238 | 122 |
| 328 | Archaeology | 22 | 348 | 410 | 473 |
| 329 | Microelectronics | 9 | 347 | 1167 | 1039 |
| 329 | Perception | 24 | 347 | 625 | 992 |
| 331 | Genetic engineering | 8 | 346 | 1458 | 1335 |
| 332 | Recombinant DNA | 8 | 345 | 1001 | 757 |
| 333 | Export Marketing | 6 | 339 | 83 | 104 |
| 334 | Medical Anthropology | 12 | 337 | 537 | 792 |
| 334 | Growth | 6 | 337 | 787 | 867 |
| 336 | Systems Analysis | 9 | 332 | 581 | 365 |
| 337 | Experimental Psychology | 13 | 331 | 227 | 280 |
| 337 | Identity | 5 | 331 | 71 | 34 |
| 337 | Self | 5 | 331 | 103 | 49 |
| 340 | Phylogeny | 5 | 329 | 660 | 509 |
| 341 | Energy Storage | 12 | 328 | 620 | 677 |
| 342 | Women's health | 5 | 326 | 1004 | 488 |
| 343 | rehabilitation | 22 | 325 | 708 | 1155 |
| 344 | Music | 60 | 320 | 60 | 230 |
| 344 | individual differences | 9 | 320 | 103 | 128 |
| 346 | Neurolinguistics | 9 | 318 | 212 | 250 |
| 347 | Ergonomics | 27 | 315 | 274 | 388 |
| 347 | Animal ecology | 13 | 315 | 494 | 571 |
| 347 | Financial management | 6 | 315 | 298 | 275 |
| 350 | Tourism | 10 | 314 | 798 | 908 |
| 350 | internet | 7 | 314 | 1013 | 766 |
| 352 | health behavior | 10 | 311 | 471 | 445 |
| 353 | Metallurgy | 11 | 308 | 1362 | 1194 |
| 353 | air | 8 | 308 | 83 | 111 |
| 355 | Robotics | 17 | 303 | 694 | 862 |
| 356 | Ethnology | 24 | 301 | 326 | 426 |
| 356 | Economic planning | 10 | 301 | 172 | 166 |
| 358 | Molecular cloning | 6 | 300 | 1110 | 783 |
| 358 | Genetic recombination | 6 | 300 | 1097 | 774 |
| 358 | Combinatorial analysis | 5 | 300 | 726 | 229 |
| 361 | Technological Innovations | 2 | 299 | 1399 | 470 |
| 362 | Written communication | 5 | 298 | 53 | 37 |
| 363 | Continuing Education | 107 | 297 | 3 | 58 |
| 364 | Dance | 45 | 295 | 13 | 14 |
| 365 | Production Engineering | 17 | 291 | 767 | 832 |
| 366 | Plant diseases | 10 | 289 | 1116 | 981 |
| 367 | proteins | 14 | 285 | 986 | 1187 |
| 368 | Conservation Biology | 8 | 283 | 664 | 716 |
| 369 | Histology | 10 | 282 | 1048 | 1169 |
| 370 | school environment | 6 | 281 | 43 | 20 |
| 370 | Respiration | 3 | 281 | 1526 | 913 |
| 370 | Catalysts | 2 | 281 | 883 | 274 |
| 373 | Neurochemistry | 5 | 280 | 1931 | 1554 |
| 374 | Physical fitness | 14 | 279 | 382 | 541 |
| 375 | Ceramics | 5 | 276 | 1319 | 750 |
| 375 | Quantum theory | 1 | 276 | 1428 | 404 |
| 377 | Environmental Geology | 8 | 275 | 994 | 876 |
| 378 | sanitation | 5 | 274 | 1251 | 1387 |
| 378 | Glass | 4 | 274 | 1064 | 653 |
| 378 | pottery | 4 | 274 | 1023 | 646 |
| 378 | alcoholism | 13 | 274 | 667 | 822 |
| 378 | at-risk youth | 10 | 274 | 32 | 74 |
| 383 | energy conservation | 4 | 273 | 1917 | 1528 |
| 384 | Physical Geography | 18 | 271 | 81 | 181 |
| 385 | Public Relations | 8 | 269 | 209 | 147 |
| 385 | Psychosomatic Medicine | 6 | 269 | 541 | 498 |
| 387 | Futures | 10 | 268 | 100 | 96 |
| 387 | coal | 1 | 268 | 2527 | 1149 |
| 389 | Industrial Engineering | 18 | 267 | 650 | 985 |
| 390 | System analysis | 18 | 266 | 886 | 1185 |
| 391 | child mental health | 21 | 265 | 102 | 189 |
| 392 | Urban Geography | 7 | 264 | 107 | 91 |
| 393 | voice | 9 | 263 | 223 | 179 |
| 393 | Smoking | 5 | 263 | 593 | 478 |
| 393 | Regional Development | 8 | 263 | 126 | 121 |
| 393 | Development planning | 8 | 263 | 101 | 110 |
| 397 | Cognitive neuroscience | 9 | 259 | 540 | 695 |
| 397 | Consumer education | 6 | 259 | 159 | 159 |
| 399 | Metals | 8 | 258 | 1431 | 1275 |
| 400 | Anatomy | 11 | 257 | 1008 | 1174 |
| 401 | Marine Biology | 12 | 256 | 1348 | 1566 |
| 401 | Economic Thought | 10 | 256 | 104 | 245 |
| 401 | economic conditions | 10 | 256 | 207 | 285 |
| 401 | Oral communication | 22 | 256 | 62 | 168 |
| 405 | Multivariate Analysis | 17 | 254 | 125 | 221 |
| 405 | Nuclear family | 13 | 254 | 36 | 16 |
| 407 | Substance Abuse | 12 | 253 | 696 | 775 |
| 407 | Securities | 2 | 253 | 462 | 135 |
| 409 | Disability Studies | 5 | 252 | 153 | 44 |
| 410 | Industrial Safety | 10 | 250 | 550 | 569 |
| 411 | Marriage counseling | 12 | 249 | 95 | 143 |
| 412 | Paleoclimatology | 10 | 247 | 613 | 731 |
| 412 | Radiobiology | 14 | 247 | 685 | 948 |
| 414 | computer networks | 11 | 246 | 1365 | 1447 |
| 415 | vitamins | 1 | 245 | 330 | 71 |
| 416 | organization | 5 | 244 | 556 | 548 |
| 417 | California | 10 | 243 | 182 | 191 |
| 418 | Literacy | 21 | 242 | 46 | 83 |
| 419 | Capital market | 2 | 239 | 580 | 203 |
| 420 | Political Sociology | 6 | 238 | 284 | 208 |
| 421 | Communication in medicine | 7 | 237 | 294 | 259 |
| 422 | synthesis | 14 | 236 | 330 | 299 |
| 422 | Autism | 5 | 236 | 529 | 477 |
| 424 | Mental Health Services | 13 | 235 | 542 | 649 |
| 424 | gene mapping | 5 | 235 | 1700 | 1597 |
| 426 | Maternal health services | 1 | 234 | 750 | 181 |
| 427 | Systems Engineering | 9 | 232 | 1297 | 1151 |
| 428 | Internet of Things | 3 | 231 | 1101 | 720 |
| 428 | Computational Biology | 8 | 231 | 1653 | 1707 |
| 430 | Digital Media | 2 | 230 | 247 | 70 |
| 430 | Online journalism | 2 | 230 | 119 | 57 |
| 430 | educational innovations | 12 | 230 | 158 | 234 |
| 433 | Community Colleges | 24 | 229 | 26 | 31 |
| 434 | intervention | 13 | 228 | 26 | 18 |
| 435 | Pharmacology | 18 | 225 | 2540 | 3775 |
| 436 | Budget | 13 | 224 | 30 | 25 |
| 437 | Cybernetics | 7 | 223 | 1072 | 1024 |
| 437 | industrial hygiene | 9 | 223 | 487 | 296 |
| 439 | correctional psychology | 4 | 222 | 186 | 135 |
| 440 | Bioenergetics | 4 | 221 | 728 | 586 |
| 440 | Energy metabolism | 4 | 221 | 504 | 466 |
| 442 | Strategic planning | 3 | 220 | 760 | 399 |
| 442 | Entrepreneurship | 8 | 220 | 482 | 711 |
| 444 | Food service management | 6 | 219 | 227 | 351 |
| 445 | Environmental Management | 16 | 218 | 1306 | 2374 |
| 445 | Bioinorganic chemistry | 12 | 218 | 673 | 829 |
| 445 | libraries | 22 | 218 | 101 | 180 |
| 448 | Computer Graphics | 12 | 217 | 871 | 1015 |
| 449 | Physical Therapy | 13 | 216 | 583 | 912 |
| 450 | Environmental Microbiology | 2 | 212 | 1764 | 1204 |
| 450 | Information Science | 17 | 212 | 978 | 1647 |
| 452 | mass transfer | 8 | 211 | 1134 | 1165 |
| 453 | Paleoecology | 10 | 209 | 587 | 727 |
| 454 | Distance Education | 7 | 208 | 162 | 170 |
| 454 | North America | 9 | 208 | 409 | 370 |
| 454 | school sports | 6 | 208 | 70 | 61 |
| 457 | Geographic information systems | 14 | 207 | 374 | 442 |
| 458 | Computer Literacy | 10 | 205 | 50 | 104 |
| 459 | Mechanics | 5 | 204 | 982 | 547 |
| 459 | econometric models | 4 | 204 | 514 | 317 |
| 461 | Mathematics Education | 16 | 203 | 100 | 149 |
| 461 | Human genetics | 3 | 203 | 2188 | 2924 |
| 461 | Paleogeography | 9 | 203 | 550 | 679 |
| 464 | Environmental Chemistry | 5 | 199 | 1749 | 1821 |
| 465 | Simulation Methods | 24 | 195 | 124 | 443 |
| 466 | thinking | 2 | 194 | 409 | 131 |
| 466 | cell membrane | 3 | 194 | 574 | 479 |
| 468 | Elections | 6 | 193 | 206 | 156 |
| 469 | women | 16 | 191 | 214 | 253 |
| 470 | Venture Capital | 5 | 190 | 196 | 372 |
| 470 | protein | 7 | 190 | 826 | 885 |
| 470 | Federal government | 12 | 190 | 28 | 39 |
| 470 | innovation | 5 | 190 | 441 | 585 |
| 474 | Community Psychiatry | 5 | 189 | 767 | 700 |
| 474 | Clinical Chemistry | 7 | 189 | 2135 | 2295 |
| 476 | Environmental Policy | 13 | 188 | 1593 | 2788 |
| 476 | Sales management | 3 | 188 | 225 | 291 |
| 476 | selling | 3 | 188 | 225 | 291 |
| 479 | analysis | 4 | 187 | 272 | 227 |
| 480 | Mechanical Engineering | 9 | 185 | 1625 | 1265 |
| 480 | Tribology | 4 | 185 | 1152 | 750 |
| 480 | Nutrition physiology | 4 | 185 | 643 | 560 |
| 483 | dietary supplements | 3 | 183 | 909 | 556 |
| 484 | Symbolic interactionism | 9 | 182 | 31 | 49 |
| 485 | Birds | 19 | 181 | 414 | 571 |
| 486 | medical education | 5 | 180 | 1387 | 1052 |
| 487 | Power Electronics | 3 | 179 | 1104 | 901 |
| 487 | Relationships | 4 | 179 | 123 | 114 |
| 489 | Information Systems | 6 | 178 | 965 | 901 |
| 489 | Patient education | 6 | 178 | 411 | 465 |
| 489 | Groundwater | 12 | 178 | 223 | 391 |
| 492 | environmental protection | 11 | 176 | 1955 | 2784 |
| 493 | Developmental Biology | 8 | 175 | 1250 | 1820 |
| 494 | election law | 5 | 174 | 180 | 131 |
| 495 | Health Services Administration | 8 | 173 | 587 | 718 |
| 495 | human development | 8 | 173 | 440 | 582 |
| 497 | drug addiction | 7 | 168 | 715 | 886 |
| 497 | race relations | 6 | 168 | 372 | 312 |
| 499 | Library Science | 68 | 167 | 31 | 263 |
| 500 | Biomechanics | 5 | 166 | 1051 | 985 |
| 501 | Wildlife conservation | 6 | 165 | 797 | 1071 |
| 501 | Semiconductors | 10 | 165 | 1269 | 1239 |
| 501 | Obesity | 6 | 165 | 1471 | 1756 |
| 504 | Quality Management | 9 | 164 | 57 | 58 |
| 504 | Heat Exchangers | 5 | 164 | 1019 | 1060 |
| 506 | Computational Chemistry | 6 | 162 | 434 | 496 |
| 506 | International Finance | 9 | 162 | 964 | 1111 |
| 508 | Feminism | 11 | 161 | 229 | 248 |
| 508 | Development | 6 | 161 | 527 | 690 |
| 510 | Political Parties | 4 | 160 | 160 | 127 |
| 510 | Political Participation | 5 | 160 | 232 | 196 |
| 510 | Voting | 4 | 160 | 197 | 139 |
| 513 | Hydrology | 15 | 159 | 1111 | 1780 |
| 513 | Psychiatric Nursing | 12 | 159 | 253 | 350 |
| 513 | Nuclear Chemistry | 5 | 159 | 895 | 543 |
| 516 | genome | 8 | 157 | 963 | 1658 |
| 517 | Dynamics | 13 | 156 | 673 | 807 |
| 518 | Bioinformatics | 7 | 155 | 1457 | 1702 |
| 519 | Toxicology | 11 | 154 | 2819 | 3965 |
| 519 | International Relations | 15 | 154 | 391 | 496 |
| 519 | Agricultural Chemistry | 4 | 154 | 2186 | 1900 |
| 519 | Depression | 2 | 154 | 473 | 447 |
| 519 | nucleotides | 3 | 154 | 355 | 104 |
| 524 | Career development | 14 | 153 | 90 | 189 |
| 525 | Classroom Environment | 2 | 152 | 84 | 27 |
| 526 | Synchrotron Radiation | 15 | 151 | 121 | 219 |
| 526 | Asia | 19 | 151 | 983 | 1555 |
| 528 | Experimental Design | 5 | 150 | 204 | 234 |
| 528 | social justice | 16 | 150 | 54 | 89 |
| 528 | Economic Assistance | 5 | 150 | 507 | 653 |
| 528 | world | 5 | 150 | 547 | 775 |
| 532 | Genes | 6 | 149 | 810 | 864 |
| 533 | Electrochemical Analysis | 8 | 148 | 975 | 1142 |
| 533 | Social Change | 2 | 148 | 1259 | 1044 |
| 535 | Energy Harvesting | 6 | 147 | 332 | 612 |
| 536 | men | 2 | 146 | 394 | 148 |
| 536 | Attention | 16 | 146 | 714 | 1402 |
| 538 | Urban Economics | 4 | 145 | 292 | 324 |
| 539 | Climate change | 3 | 144 | 1029 | 1422 |
| 539 | Eutrophication | 3 | 144 | 971 | 1400 |
| 541 | Sedimentology | 5 | 142 | 447 | 489 |
| 541 | Australia | 15 | 142 | 745 | 1180 |
| 543 | Computational Mathematics | 2 | 141 | 125 | 65 |
| 543 | bioclimatology | 4 | 141 | 794 | 662 |
| 543 | Mass Media | 14 | 141 | 246 | 275 |
| 543 | Herpetology | 11 | 141 | 100 | 123 |
| 543 | Reproduction | 11 | 141 | 1254 | 1807 |
| 548 | Liposomes | 6 | 140 | 332 | 439 |
| 548 | Lipid bilayers | 6 | 140 | 290 | 376 |
| 548 | masculinity | 1 | 140 | 195 | 69 |
| 551 | Socioeconomic Factors | 7 | 139 | 448 | 599 |
| 552 | Entropy | 8 | 138 | 575 | 568 |
| 552 | Public Choice | 5 | 138 | 231 | 233 |
| 552 | Group decision making | 5 | 138 | 320 | 309 |
| 552 | Landslides | 2 | 138 | 345 | 276 |
| 556 | Atomic spectroscopy | 5 | 137 | 920 | 761 |
| 557 | residential treatment | 6 | 136 | 84 | 79 |
| 558 | Language Acquisition | 5 | 135 | 207 | 168 |
| 558 | Human Resources | 7 | 135 | 231 | 439 |
| 560 | Humanities | 11 | 134 | 764 | 723 |
| 560 | Astrophysics | 10 | 134 | 1958 | 2345 |
| 562 | Total Quality Management | 7 | 133 | 221 | 312 |
| 562 | insurance | 9 | 133 | 150 | 206 |
| 564 | family studies | 1 | 132 | 76 | 40 |
| 564 | Parenting | 1 | 132 | 109 | 47 |
| 564 | Child rearing | 1 | 132 | 109 | 47 |
| 567 | Geomorphology | 4 | 131 | 1218 | 1299 |
| 567 | Optics | 14 | 131 | 2583 | 2941 |
| 567 | Solar Energy | 4 | 131 | 1660 | 1700 |
| 567 | clay | 3 | 131 | 798 | 766 |
| 567 | clay minerals | 3 | 131 | 283 | 254 |
| 567 | sexual behavior | 9 | 131 | 299 | 533 |
| 573 | Nonprofit organizations | 11 | 130 | 90 | 221 |
| 573 | Creativity | 5 | 130 | 164 | 202 |
| 575 | Molecular recognition | 7 | 129 | 66 | 131 |
| 576 | Green Chemistry | 3 | 127 | 1766 | 1838 |
| 576 | Decision Support Systems | 5 | 127 | 73 | 75 |
| 576 | Quality of life | 6 | 127 | 1050 | 1442 |
| 579 | Radiochemistry | 3 | 126 | 1092 | 534 |
| 579 | Ion Exchange | 3 | 126 | 133 | 81 |
| 579 | Solvent extraction | 3 | 126 | 133 | 81 |
| 579 | crime victims | 13 | 126 | 15 | 72 |
| 583 | Radiology | 9 | 125 | 892 | 1022 |
| 583 | Sociolinguistics | 7 | 125 | 237 | 274 |
| 583 | Semigroups | 21 | 125 | 26 | 42 |
| 583 | technical education | 11 | 125 | 246 | 405 |
| 587 | Second Language Acquisition | 1 | 124 | 334 | 183 |
| 587 | Magnetic Resonance Spectroscopy | 11 | 124 | 608 | 821 |
| 589 | Religion | 13 | 123 | 356 | 272 |
| 589 | Body Image | 1 | 123 | 388 | 230 |
| 589 | Host-parasite interactions | 4 | 123 | 1135 | 1580 |
| 589 | Reptiles | 10 | 123 | 88 | 125 |
| 593 | Nuclear Energy | 3 | 122 | 1207 | 658 |
| 594 | Orthopedics | 2 | 121 | 1965 | 1342 |
| 594 | Risk | 3 | 121 | 557 | 505 |
| 594 | Chromatographic analysis | 6 | 121 | 1425 | 1412 |
| 597 | Social perception | 5 | 120 | 82 | 120 |
| 597 | Customer service | 2 | 120 | 74 | 14 |
| 597 | Employee selection | 2 | 120 | 164 | 95 |
| 600 | Nanostructures | 4 | 119 | 1812 | 1885 |
| 600 | deviant behavior | 5 | 119 | 210 | 173 |
| 602 | Cartography | 2 | 118 | 619 | 199 |
| 602 | Geriatric Psychiatry | 3 | 118 | 1015 | 874 |
| 602 | Comparative Physiology | 4 | 118 | 651 | 693 |
| 602 | Water | 5 | 118 | 2035 | 2630 |
| 602 | Obsessive-Compulsive Disorder | 13 | 118 | 26 | 73 |
| 602 | Chromosome mapping | 3 | 118 | 1963 | 1975 |
| 608 | Microbial Genetics | 4 | 117 | 273 | 324 |
| 608 | Measurement | 7 | 117 | 889 | 1046 |
| 608 | phytopathogenic bacteria | 4 | 117 | 198 | 305 |
| 608 | DNA polymerases | 2 | 117 | 589 | 861 |
| 612 | Paleoceanography | 3 | 116 | 177 | 244 |
| 613 | Educational measurement | 13 | 115 | 48 | 107 |
| 613 | Crystal growth | 2 | 115 | 1258 | 894 |
| 615 | Actuarial Science | 9 | 114 | 94 | 160 |
| 616 | Electrophoresis | 5 | 113 | 1356 | 1476 |
| 616 | Chromatography | 5 | 113 | 1368 | 1342 |
| 616 | enzymes | 8 | 113 | 957 | 1503 |
| 619 | Image Processing | 9 | 111 | 1396 | 2025 |
| 620 | Software Engineering | 5 | 110 | 810 | 795 |
| 620 | nuclear magnetic resonance | 8 | 110 | 676 | 804 |
| 622 | Bacteriology | 3 | 109 | 1954 | 2083 |
| 622 | Wildlife management | 7 | 109 | 367 | 410 |
| 622 | Visual Perception | 13 | 109 | 788 | 1546 |
| 625 | Early Childhood Education | 7 | 108 | 341 | 372 |
| 625 | Auditing | 11 | 108 | 116 | 339 |
| 627 | Occupational Therapy | 6 | 107 | 714 | 514 |
| 627 | Nuclear Engineering | 16 | 107 | 751 | 1131 |
| 627 | Race | 2 | 107 | 81 | 45 |
| 630 | Mathematical Economics | 1 | 106 | 493 | 287 |
| 630 | atmospheric models | 1 | 106 | 976 | 707 |
| 632 | Land Use Planning | 3 | 105 | 364 | 401 |
| 632 | Language Development | 4 | 105 | 77 | 93 |
| 632 | Waste management | 3 | 105 | 1559 | 1129 |
| 632 | economic policy | 15 | 105 | 1038 | 1533 |
| 636 | Sustainable Development | 2 | 104 | 2592 | 2029 |
| 636 | community development | 13 | 104 | 185 | 467 |
| 636 | Popular culture | 13 | 104 | 142 | 173 |
| 636 | sustainability | 2 | 104 | 1177 | 1015 |
| 640 | India | 9 | 103 | 659 | 555 |
| 641 | psychological abuse | 2 | 102 | 10 | 14 |
| 641 | Breeding | 2 | 102 | 1475 | 1144 |
| 643 | Nonparametric Statistics | 7 | 101 | 46 | 51 |
| 643 | Photonics | 1 | 101 | 2832 | 1872 |
| 643 | Psychopharmacology | 5 | 101 | 1212 | 1665 |
| 646 | Metabolism | 1 | 100 | 4109 | 3125 |
| 646 | Metabolic diseases | 1 | 100 | 3453 | 2640 |
| 648 | nursing education | 6 | 99 | 76 | 79 |
| 648 | industrial relations | 8 | 99 | 446 | 579 |
| 650 | Military psychology | 7 | 98 | 44 | 63 |
| 650 | Business communication | 10 | 98 | 55 | 127 |
| 652 | Gender identity | 9 | 96 | 93 | 145 |
| 653 | Political Psychology | 9 | 95 | 152 | 383 |
| 653 | Harmonic Analysis | 4 | 95 | 121 | 151 |
| 655 | Morphology | 2 | 94 | 1012 | 608 |
| 655 | Proteome | 6 | 94 | 865 | 1427 |
| 657 | Evolutionary Psychology | 2 | 93 | 194 | 116 |
| 657 | Municipal Engineering | 2 | 93 | 456 | 301 |
| 657 | family counseling | 1 | 93 | 267 | 68 |
| 657 | Nonlinear mechanics | 5 | 93 | 297 | 354 |
| 661 | Diabetes mellitus | 2 | 92 | 2520 | 2394 |
| 661 | Public Speaking | 9 | 92 | 70 | 69 |
| 663 | Probability | 1 | 91 | 1006 | 557 |
| 663 | Risk Management | 1 | 91 | 1399 | 674 |
| 663 | speech therapy | 10 | 91 | 201 | 338 |
| 663 | disabilities | 9 | 91 | 371 | 670 |
| 663 | language therapy | 7 | 91 | 91 | 127 |
| 663 | Jurisprudence | 2 | 91 | 1081 | 676 |
| 669 | terrorism | 6 | 90 | 148 | 169 |
| 669 | Labor Unions | 11 | 90 | 59 | 95 |
| 669 | Adaptive control systems | 4 | 90 | 515 | 409 |
| 669 | animals | 5 | 90 | 1012 | 966 |
| 669 | labor | 10 | 90 | 91 | 251 |
| 669 | Social interaction | 5 | 90 | 230 | 310 |
| 669 | atmosphere | 1 | 90 | 1318 | 836 |
| 669 | Virulence | 2 | 90 | 1401 | 1671 |
| 669 | Labor Movement | 9 | 90 | 47 | 52 |
| 669 | Immunity | 2 | 90 | 2357 | 2605 |
| 679 | Labor history | 8 | 89 | 16 | 8 |
| 679 | scientific societies | 7 | 89 | 432 | 760 |
| 681 | History | 25 | 86 | 304 | 300 |
| 681 | Quantum electronics | 1 | 86 | 2594 | 1420 |
| 681 | visualization | 11 | 86 | 758 | 879 |
| 684 | Higher Education | 7 | 85 | 336 | 450 |
| 684 | Linguistic universals | 1 | 85 | 57 | 3 |
| 684 | Credit | 1 | 85 | 241 | 144 |
| 684 | Money | 1 | 85 | 652 | 419 |
| 688 | Hydrogeology | 5 | 84 | 505 | 684 |
| 688 | Criminal Law | 3 | 84 | 255 | 209 |
| 688 | minority groups | 2 | 84 | 99 | 45 |
| 688 | Amphibians | 9 | 84 | 72 | 129 |
| 692 | Multicultural Education | 6 | 83 | 212 | 257 |
| 693 | Primary health care | 4 | 82 | 1629 | 1692 |
| 694 | Bilingual Education | 2 | 81 | 86 | 64 |
| 694 | Superconductors | 3 | 81 | 1074 | 791 |
| 694 | Superconductivity | 3 | 81 | 513 | 406 |
| 694 | Ornithology | 13 | 81 | 423 | 759 |
| 694 | Southeast Asia | 11 | 81 | 100 | 196 |
| 694 | Biodiversity | 5 | 81 | 1771 | 2321 |
| 700 | freshwater biology | 1 | 80 | 1493 | 931 |
| 701 | Clinical Trials | 3 | 79 | 615 | 529 |
| 701 | Psychometrics | 3 | 79 | 415 | 412 |
| 701 | occupational diseases | 3 | 79 | 824 | 968 |
| 704 | Cytogenetics | 4 | 78 | 1360 | 1957 |
| 705 | Qualitative Research | 4 | 77 | 410 | 455 |
| 705 | Paleopathology | 4 | 77 | 259 | 212 |
| 707 | Applied Linguistics | 4 | 76 | 454 | 427 |
| 707 | Biomass Energy | 3 | 76 | 2446 | 2834 |
| 709 | Cognitive Psychology | 6 | 75 | 229 | 330 |
| 709 | Systems Biology | 3 | 75 | 1720 | 1804 |
| 709 | Employee rights | 1 | 75 | 186 | 57 |
| 709 | civil service | 7 | 75 | 198 | 345 |
| 713 | Insects | 8 | 74 | 889 | 1290 |
| 714 | Geometry | 6 | 73 | 744 | 590 |
| 714 | Remote Sensing | 3 | 73 | 1629 | 1199 |
| 714 | Fashion merchandising | 1 | 73 | 94 | 45 |
| 714 | Hippocampus | 3 | 73 | 298 | 459 |
| 714 | Fashion | 1 | 73 | 286 | 99 |
| 719 | Agricultural Ecology | 2 | 72 | 1370 | 1508 |
| 719 | peace | 4 | 72 | 390 | 493 |
| 719 | Arthropods | 7 | 72 | 84 | 178 |
| 719 | disease outbreaks | 1 | 72 | 977 | 749 |
| 719 | Epidemics | 1 | 72 | 915 | 738 |
| 724 | Health Information Management | 2 | 71 | 396 | 720 |
| 724 | Bibliometrics | 2 | 71 | 183 | 202 |
| 724 | complementary therapies | 6 | 71 | 1142 | 1755 |
| 724 | Recycling | 1 | 71 | 1110 | 1127 |
| 728 | Multiculturalism | 1 | 70 | 167 | 33 |
| 728 | Freeze-Drying | 4 | 70 | 316 | 422 |
| 728 | Hypothermia | 4 | 70 | 316 | 422 |
| 728 | Freeze Drying | 4 | 70 | 316 | 422 |
| 728 | Developmental Immunology | 4 | 70 | 511 | 827 |
| 733 | Biosensors | 3 | 69 | 1376 | 2010 |
| 733 | Educational Leadership | 3 | 69 | 130 | 109 |
| 733 | Restoration Ecology | 6 | 69 | 254 | 536 |
| 733 | Microbial Biotechnology | 5 | 69 | 717 | 1194 |
| 733 | national security | 5 | 69 | 246 | 186 |
| 733 | Approximation Theory | 6 | 69 | 260 | 289 |
| 733 | death | 5 | 69 | 208 | 226 |
| 740 | Biogeochemical cycles | 2 | 68 | 518 | 725 |
| 740 | Water quality management | 4 | 68 | 1692 | 1926 |
| 740 | Magnetic Materials | 4 | 68 | 1456 | 1587 |
| 740 | Public opinion | 3 | 68 | 418 | 478 |
| 740 | International security | 3 | 68 | 211 | 307 |
| 740 | curriculum planning | 2 | 68 | 213 | 149 |
| 740 | Neurons | 1 | 68 | 997 | 1290 |
| 740 | conflict management | 4 | 68 | 196 | 315 |
| 748 | Africa | 5 | 67 | 1185 | 1144 |
| 748 | lasers | 1 | 67 | 3228 | 2053 |
| 750 | Economic Geography | 2 | 66 | 456 | 382 |
| 750 | Experience | 2 | 66 | 46 | 28 |
| 750 | Detectors | 4 | 66 | 1395 | 1626 |
| 753 | Fluid Mechanics | 4 | 65 | 1432 | 1537 |
| 753 | Leadership | 2 | 65 | 642 | 691 |
| 753 | Metacognition | 2 | 65 | 80 | 109 |
| 756 | Dyslexia | 5 | 64 | 86 | 197 |
| 756 | Cosmochemistry | 3 | 64 | 935 | 1131 |
| 758 | Geriatric Medicine | 3 | 63 | 139 | 198 |
| 758 | Telecommunications | 7 | 63 | 450 | 726 |
| 758 | feeding behavior | 4 | 63 | 615 | 994 |
| 758 | Molecular structure | 7 | 63 | 1714 | 2541 |
| 758 | plant communities | 4 | 63 | 930 | 1428 |
| 763 | Geodynamics | 2 | 62 | 1023 | 1009 |
| 764 | Teratology | 2 | 61 | 360 | 398 |
| 764 | Health Services Research | 4 | 61 | 1608 | 1954 |
| 764 | genre | 4 | 61 | 121 | 162 |
| 764 | Oncogenes | 1 | 61 | 1703 | 1898 |
| 764 | Ore deposits | 2 | 61 | 656 | 606 |
| 769 | Computer Science | 4 | 60 | 1901 | 1930 |
| 769 | Sexual health | 6 | 60 | 510 | 798 |
| 769 | Social policy | 7 | 60 | 584 | 944 |
| 769 | Food | 5 | 60 | 2540 | 3714 |
| 769 | Rhetoric | 9 | 60 | 54 | 49 |
| 769 | African Americans | 6 | 60 | 107 | 130 |
| 775 | Fractional Calculus | 1 | 59 | 326 | 154 |
| 775 | organizational effectiveness | 9 | 59 | 128 | 484 |
| 777 | Number Theory | 10 | 58 | 355 | 435 |
| 777 | Paleobiology | 3 | 58 | 361 | 261 |
| 777 | Medical Ethics | 5 | 58 | 855 | 1035 |
| 777 | Hearing Aids | 6 | 58 | 145 | 212 |
| 777 | Plastics | 2 | 58 | 2131 | 1778 |
| 777 | planning | 5 | 58 | 519 | 760 |
| 777 | Diabetes | 1 | 58 | 3353 | 2907 |
| 777 | motor skills | 2 | 58 | 260 | 225 |
| 785 | Ocean Engineering | 3 | 57 | 1752 | 1974 |
| 786 | Drug delivery systems | 2 | 56 | 2059 | 2222 |
| 786 | Plant tissue culture | 1 | 56 | 1208 | 963 |
| 786 | Plant cell culture | 1 | 56 | 1119 | 954 |
| 789 | Geriatric Nursing | 9 | 55 | 216 | 443 |
| 789 | healthcare disparities | 3 | 55 | 495 | 630 |
| 789 | African American | 5 | 55 | 75 | 117 |
| 792 | Bioethics | 4 | 54 | 800 | 874 |
| 792 | Sexuality | 1 | 54 | 579 | 314 |
| 792 | sports administration | 6 | 54 | 164 | 335 |
| 792 | Textile industry | 6 | 54 | 345 | 442 |
| 796 | Medical Technology | 7 | 53 | 1094 | 2271 |
| 796 | Soil Science | 4 | 53 | 1691 | 2245 |
| 796 | Human-Computer Interaction | 3 | 53 | 1641 | 1821 |
| 796 | Ideology | 1 | 53 | 149 | 48 |
| 796 | curriculum evaluation | 4 | 53 | 295 | 402 |
| 796 | urban population | 3 | 53 | 208 | 412 |
| 796 | cryosphere | 2 | 53 | 443 | 528 |
| 796 | weather | 1 | 53 | 1065 | 808 |
| 796 | DNA | 3 | 53 | 638 | 793 |
| 805 | Pharmaceutical Technology | 2 | 52 | 1931 | 1995 |
| 805 | sexual orientation | 3 | 52 | 101 | 143 |
| 805 | ethanol | 3 | 52 | 515 | 645 |
| 805 | Instructional systems | 5 | 52 | 91 | 177 |
| 809 | Combinatorial chemistry | 1 | 51 | 1309 | 1289 |
| 809 | sadness | 4 | 51 | 167 | 249 |
| 809 | biological invasions | 2 | 51 | 773 | 853 |
| 809 | amino acids | 3 | 51 | 597 | 895 |
| 809 | antisocial personality disorder | 4 | 51 | 167 | 249 |
| 809 | Cerebral cortex | 2 | 51 | 1074 | 1271 |
| 809 | Nitric oxide | 2 | 51 | 338 | 482 |
| 809 | Insect biochemistry | 1 | 51 | 757 | 667 |
| 817 | History of Nursing | 4 | 50 | 26 | 7 |
| 817 | Molecules | 7 | 50 | 1020 | 1454 |
| 817 | foreign exchange | 1 | 50 | 623 | 536 |
| 817 | Broadcasting | 4 | 50 | 145 | 217 |
| 817 | water supply | 1 | 50 | 1511 | 1324 |
| 817 | Toxins | 6 | 50 | 557 | 1109 |
| 823 | Biogeography | 1 | 49 | 1399 | 1464 |
| 823 | Plant Morphology | 2 | 49 | 723 | 671 |
| 823 | ethnicity | 5 | 49 | 492 | 634 |
| 823 | China | 13 | 49 | 1473 | 3272 |
| 823 | Spanish language | 3 | 49 | 89 | 22 |
| 823 | Radiation effects | 3 | 49 | 652 | 1015 |
| 829 | Clinical Biochemistry | 2 | 48 | 1549 | 1639 |
| 829 | Human Capital | 7 | 48 | 89 | 376 |
| 829 | Protozoa | 1 | 48 | 743 | 605 |
| 829 | Appetite | 3 | 48 | 633 | 1008 |
| 829 | adulthood | 7 | 48 | 24 | 128 |
| 834 | Virtual reality | 1 | 47 | 804 | 540 |
| 834 | Democracy | 3 | 47 | 291 | 241 |
| 834 | Parasitology | 2 | 47 | 2653 | 2626 |
| 837 | Radiography | 2 | 46 | 1031 | 1337 |
| 837 | Atmospheric Physics | 2 | 46 | 1838 | 1956 |
| 837 | Alternative Medicine | 4 | 46 | 1330 | 2148 |
| 840 | soil microbiology | 2 | 45 | 1806 | 2457 |
| 840 | Computational Complexity | 3 | 45 | 1027 | 1008 |
| 840 | DNS | 2 | 45 | 723 | 843 |
| 840 | Performance | 7 | 45 | 151 | 380 |
| 840 | child behavior | 2 | 45 | 471 | 563 |
| 845 | Planetary Science | 1 | 44 | 884 | 572 |
| 845 | Communication and Culture | 4 | 44 | 201 | 249 |
| 845 | Feminist criticism | 1 | 44 | 253 | 111 |
| 845 | Democratization | 2 | 44 | 166 | 194 |
| 845 | Water Microbiology | 1 | 44 | 958 | 775 |
| 845 | isomerism | 3 | 44 | 314 | 383 |
| 845 | questioning | 3 | 44 | 42 | 48 |
| 845 | Chirality | 3 | 44 | 314 | 383 |
| 853 | biomedicine | 6 | 43 | 323 | 976 |
| 854 | Biogeochemistry | 2 | 42 | 1313 | 1738 |
| 854 | Composite Materials | 3 | 42 | 2709 | 3461 |
| 854 | Developmental Neurobiology | 3 | 42 | 524 | 755 |
| 854 | global environmental change | 1 | 42 | 1455 | 1499 |
| 854 | Sites | 3 | 42 | 546 | 882 |
| 854 | environmental issues | 1 | 42 | 842 | 775 |
| 860 | Energy Policy | 3 | 41 | 2762 | 3946 |
| 860 | Medical Oncology | 2 | 41 | 2314 | 2733 |
| 860 | Wireless Communication Systems | 3 | 41 | 2356 | 2584 |
| 860 | Coatings | 4 | 41 | 44 | 45 |
| 860 | international trade | 4 | 41 | 623 | 854 |
| 860 | Paint | 4 | 41 | 19 | 44 |
| 860 | Algal blooms | 1 | 41 | 522 | 569 |
| 860 | catalytic activity | 1 | 41 | 986 | 930 |
| 860 | Cyanobacteria | 1 | 41 | 522 | 569 |
| 860 | microalgae | 1 | 41 | 522 | 569 |
| 870 | Pharmacy | 3 | 40 | 2283 | 3023 |
| 870 | Algorithms | 3 | 40 | 729 | 784 |
| 870 | Hydrometeorology | 5 | 40 | 155 | 468 |
| 870 | Radio waves | 4 | 40 | 841 | 1300 |
| 870 | mutagens | 2 | 40 | 1042 | 1500 |
| 870 | school failure | 4 | 40 | 51 | 75 |
| 876 | Ecological Genetics | 2 | 39 | 841 | 812 |
| 876 | Popular Music | 11 | 39 | 5 | 26 |
| 876 | disaster relief | 3 | 39 | 199 | 392 |
| 879 | Electrical Engineering | 53 | 38 | 788 | 3195 |
| 879 | Marine Ecology | 2 | 38 | 962 | 1048 |
| 879 | Urban Policy | 2 | 38 | 1030 | 1246 |
| 879 | Water pollution | 5 | 38 | 2325 | 3849 |
| 879 | Radioisotopes | 3 | 38 | 1259 | 1339 |
| 884 | Hydraulic Engineering | 3 | 37 | 985 | 1250 |
| 884 | Analytical Biochemistry | 5 | 37 | 1467 | 2500 |
| 884 | mutation | 4 | 37 | 569 | 1128 |
| 884 | Calculus of Variations | 3 | 37 | 471 | 476 |
| 884 | locomotion | 2 | 37 | 792 | 962 |
| 884 | posture | 2 | 37 | 792 | 962 |
| 884 | Plant breeding | 1 | 37 | 1393 | 1198 |
| 884 | Transgenic plants | 1 | 37 | 915 | 936 |
| 884 | Chromosomes | 4 | 37 | 888 | 1570 |
| 884 | Navier-Stokes equations | 3 | 37 | 134 | 137 |
| 884 | gait | 2 | 37 | 792 | 962 |
| 884 | venom | 5 | 37 | 564 | 1160 |
| 884 | walking | 2 | 37 | 792 | 962 |
| 897 | Oncology | 2 | 36 | 2962 | 3947 |
| 897 | Sports Psychology | 3 | 36 | 100 | 232 |
| 897 | Ethnic relations | 5 | 36 | 410 | 597 |
| 897 | Therapeutics | 3 | 36 | 1864 | 2889 |
| 897 | children | 3 | 36 | 483 | 683 |
| 902 | Game Theory | 2 | 35 | 655 | 622 |
| 902 | Postcolonialism | 2 | 35 | 173 | 101 |
| 902 | colonies | 2 | 35 | 50 | 35 |
| 902 | forestry | 1 | 35 | 417 | 374 |
| 906 | Intercultural Communication | 9 | 34 | 146 | 607 |
| 906 | Transportation | 1 | 34 | 2572 | 2224 |
| 906 | Cross-Cultural Studies | 9 | 34 | 309 | 1112 |
| 906 | curriculum | 1 | 34 | 151 | 100 |
| 906 | Roads | 1 | 34 | 1221 | 835 |
| 906 | Consciousness | 7 | 34 | 253 | 643 |
| 912 | Pediatric Nursing | 1 | 33 | 770 | 648 |
| 912 | Obstetric Nursing | 1 | 33 | 508 | 446 |
| 912 | Integrated Circuits | 3 | 33 | 926 | 784 |
| 912 | Well-being | 1 | 33 | 314 | 237 |
| 912 | nursing ethics | 2 | 33 | 285 | 459 |
| 912 | Bioelectronics | 1 | 33 | 1847 | 2246 |
| 918 | Phenomenology | 5 | 32 | 137 | 184 |
| 918 | Chemical Ecology | 2 | 32 | 639 | 961 |
| 918 | Demography | 2 | 32 | 862 | 1079 |
| 918 | Animal Nutrition | 2 | 32 | 726 | 842 |
| 918 | microwave communication systems | 2 | 32 | 514 | 580 |
| 918 | Executive Power | 3 | 32 | 97 | 97 |
| 918 | Applied Ethics | 2 | 32 | 178 | 148 |
| 918 | primary prevention | 5 | 32 | 285 | 805 |
| 918 | Microwave devices | 2 | 32 | 633 | 670 |
| 918 | Cell metabolism | 1 | 32 | 1207 | 1496 |
| 928 | Otolaryngology | 1 | 31 | 968 | 805 |
| 928 | Community Health Nursing | 1 | 31 | 158 | 114 |
| 928 | Inclusive Education | 3 | 31 | 156 | 316 |
| 928 | Nationalism | 2 | 31 | 433 | 370 |
| 928 | Urban Education | 4 | 31 | 85 | 167 |
| 928 | Carcinogenesis | 1 | 31 | 1712 | 1890 |
| 928 | Integration | 1 | 31 | 344 | 314 |
| 928 | carcinogens | 1 | 31 | 1706 | 1834 |
| 928 | cultural pluralism | 3 | 31 | 392 | 547 |
| 928 | population geography | 2 | 31 | 486 | 619 |
| 928 | Leisure | 2 | 31 | 398 | 565 |
| 939 | Nanochemistry | 2 | 30 | 1594 | 1860 |
| 939 | Plant Taxonomy | 2 | 30 | 511 | 586 |
| 939 | Stochastic Processes | 7 | 30 | 496 | 1131 |
| 939 | Cultural diversity | 1 | 30 | 288 | 332 |
| 939 | Small Business | 3 | 30 | 714 | 1308 |
| 939 | Prisons | 6 | 30 | 187 | 393 |
| 939 | cell physiology | 3 | 30 | 1602 | 2673 |
| 939 | administrative agencies | 1 | 30 | 512 | 385 |
| 939 | Steroids | 4 | 30 | 893 | 1646 |
| 939 | Evolution equations | 1 | 30 | 294 | 133 |
| 939 | Prospecting | 1 | 30 | 208 | 119 |
| 939 | drugs | 3 | 30 | 2323 | 3344 |
| 951 | Obstetrics | 3 | 29 | 2485 | 3387 |
| 951 | Materials Engineering | 2 | 29 | 991 | 1014 |
| 951 | Organizational change | 3 | 29 | 712 | 1069 |
| 951 | Noise | 3 | 29 | 145 | 188 |
| 951 | Wetland ecology | 1 | 29 | 914 | 809 |
| 951 | Wetland conservation | 1 | 29 | 663 | 616 |
| 951 | Hospitality industry | 3 | 29 | 367 | 732 |
| 951 | Japan | 5 | 29 | 1684 | 2674 |
| 951 | Microwaves | 3 | 29 | 1494 | 1695 |
| 951 | Wetlands | 1 | 29 | 677 | 620 |
| 961 | Medical Sociology | 1 | 28 | 113 | 122 |
| 961 | Risk assessment | 2 | 28 | 868 | 1039 |
| 961 | Fracture mechanics | 2 | 28 | 1761 | 1998 |
| 961 | ecological risk assessment | 2 | 28 | 366 | 564 |
| 961 | Happiness | 2 | 28 | 562 | 860 |
| 961 | Religion and Sociology | 4 | 28 | 164 | 226 |
| 961 | Intelligent Control Systems | 2 | 28 | 1496 | 1375 |
| 961 | Latin America | 5 | 28 | 786 | 969 |
| 961 | environmental exposure | 1 | 28 | 3187 | 3261 |
| 961 | heredity | 3 | 28 | 675 | 1070 |
| 961 | cataloging | 27 | 28 | 7 | 74 |
| 961 | Health Risk Assessment | 2 | 28 | 656 | 830 |
| 961 | Heterocyclic compounds | 4 | 28 | 903 | 1218 |
| 974 | Children's Literature | 2 | 27 | 111 | 49 |
| 974 | Ecophysiology | 1 | 27 | 449 | 471 |
| 974 | Geomagnetism | 1 | 27 | 909 | 916 |
| 974 | ecosystem | 1 | 27 | 2088 | 2366 |
| 974 | listening | 3 | 27 | 24 | 65 |
| 979 | Acoustics | 2 | 26 | 519 | 431 |
| 979 | intergroup relations | 2 | 26 | 218 | 373 |
| 979 | Gene expression regulation | 2 | 26 | 1298 | 1782 |
| 979 | Action Research | 1 | 26 | 460 | 381 |
| 979 | Educational Change | 1 | 26 | 144 | 165 |
| 979 | Genetic regulation | 2 | 26 | 1479 | 2078 |
| 979 | Luminescence | 5 | 26 | 1089 | 1876 |
| 979 | Continental shelf | 1 | 26 | 636 | 722 |
| 979 | Europa | 1 | 26 | 824 | 824 |
| 979 | Trace elements | 1 | 26 | 566 | 720 |
| 989 | History of Medicine | 4 | 25 | 333 | 301 |
| 989 | Social Ethics | 4 | 25 | 144 | 228 |
| 989 | poverty | 1 | 25 | 850 | 866 |
| 989 | Soft Condensed Matter | 5 | 25 | 874 | 1733 |
| 989 | paraphilias | 1 | 25 | 338 | 383 |
| 989 | dissociative disorders | 3 | 25 | 105 | 285 |
| 989 | Multiple sclerosis | 3 | 25 | 631 | 880 |
| 996 | Educational Anthropology | 4 | 24 | 73 | 161 |
| 996 | Divorce | 1 | 24 | 292 | 239 |
| 996 | Microfluidics | 2 | 24 | 303 | 513 |
| 996 | pheromones | 1 | 24 | 797 | 1011 |
| 996 | Sedimentary rocks | 1 | 24 | 931 | 988 |