| 1 | Physics | 1,278 | 109.0K | 337 | 268 |
| 2 | Pollution | 923 | 72.8K | 47 | 29 |
| 3 | Science | 694 | 71.3K | 414 | 313 |
| 4 | Biology | 603 | 70.8K | 437 | 323 |
| 5 | Ecology | 828 | 65.0K | 149 | 128 |
| 6 | Nuclear Physics | 915 | 53.8K | 245 | 146 |
| 7 | Environmental Health | 542 | 43.4K | 99 | 59 |
| 8 | Natural history | 192 | 40.6K | 255 | 269 |
| 9 | Environmental Engineering | 414 | 36.5K | 65 | 35 |
| 10 | Environment | 387 | 36.0K | 185 | 127 |
| 11 | environmental pollution | 583 | 34.9K | 40 | 21 |
| 12 | Botany | 406 | 29.1K | 184 | 109 |
| 13 | Psychology | 466 | 29.0K | 209 | 126 |
| 14 | management | 423 | 28.3K | 44 | 83 |
| 15 | Chemistry | 437 | 27.6K | 818 | 599 |
| 16 | Biochemistry | 341 | 26.5K | 877 | 521 |
| 17 | Hydrology | 267 | 25.8K | 55 | 15 |
| 18 | sanitation | 253 | 25.0K | 37 | 30 |
| 19 | Medicine | 524 | 23.5K | 549 | 501 |
| 20 | Geophysics | 546 | 23.0K | 154 | 140 |
| 21 | Astrophysics | 426 | 20.7K | 296 | 363 |
| 22 | Environmental monitoring | 322 | 20.6K | 45 | 27 |
| 23 | Social Sciences | 350 | 20.0K | 56 | 21 |
| 24 | Plant physiology | 154 | 19.2K | 115 | 37 |
| 25 | Molecular Biology | 162 | 18.0K | 1033 | 577 |
| 26 | Environmental Policy | 237 | 17.9K | 69 | 50 |
| 27 | Astronomy | 438 | 16.4K | 255 | 321 |
| 28 | Public Health | 376 | 16.4K | 236 | 218 |
| 29 | Condensed Matter | 376 | 16.1K | 267 | 236 |
| 30 | Quantum Gravity | 281 | 16.1K | 225 | 166 |
| 31 | Solid State Physics | 381 | 15.8K | 295 | 229 |
| 32 | Sociology | 290 | 15.7K | 97 | 68 |
| 33 | Biodiversity conservation | 120 | 15.3K | 97 | 68 |
| 34 | Plant cells | 112 | 14.7K | 94 | 86 |
| 35 | Economics | 593 | 14.6K | 73 | 140 |
| 36 | Spectrum analysis | 157 | 14.5K | 500 | 352 |
| 37 | Wireless Communication Systems | 222 | 14.3K | 102 | 46 |
| 38 | Telecommunication | 140 | 14.2K | 209 | 92 |
| 39 | Statistics | 384 | 14.2K | 67 | 74 |
| 40 | Research | 414 | 13.6K | 533 | 525 |
| 41 | Climate change | 94 | 13.0K | 52 | 57 |
| 42 | Eutrophication | 92 | 13.0K | 54 | 57 |
| 43 | organization | 137 | 12.6K | 9 | 25 |
| 44 | Atmospheric Physics | 241 | 12.4K | 71 | 75 |
| 45 | environmental protection | 167 | 11.6K | 135 | 56 |
| 46 | Microbiology | 143 | 11.4K | 807 | 565 |
| 47 | Water | 143 | 11.4K | 163 | 114 |
| 48 | Small Business | 110 | 11.1K | 5 | 7 |
| 49 | Communication | 150 | 10.9K | 99 | 44 |
| 50 | Technology | 148 | 10.8K | 313 | 97 |
| 51 | Nanotechnology | 156 | 10.6K | 636 | 465 |
| 52 | Geology | 212 | 10.5K | 258 | 199 |
| 53 | Business | 243 | 10.3K | 9 | 88 |
| 54 | Atmospheric Chemistry | 146 | 10.1K | 76 | 69 |
| 55 | Plant Ecology | 90 | 10.0K | 155 | 46 |
| 56 | Palliative Care | 201 | 9.9K | 3 | 2 |
| 57 | Geography | 203 | 9.9K | 93 | 62 |
| 58 | Biotechnology | 80 | 9.7K | 1031 | 504 |
| 59 | Entrepreneurship | 99 | 9.5K | 4 | 22 |
| 60 | soil microbiology | 106 | 9.4K | 80 | 65 |
| 61 | Environmental Law | 93 | 9.0K | 33 | 22 |
| 62 | Earth Sciences | 118 | 8.7K | 328 | 170 |
| 63 | plant communities | 94 | 8.6K | 47 | 25 |
| 64 | Plants | 72 | 8.5K | 249 | 128 |
| 65 | Bioengineering | 52 | 8.5K | 903 | 358 |
| 66 | Information Technology | 97 | 8.0K | 118 | 44 |
| 67 | Intellectual disability | 161 | 8.0K | 17 | 8 |
| 68 | Regional Planning | 142 | 8.0K | 46 | 27 |
| 69 | Human Geography | 129 | 8.0K | 54 | 26 |
| 70 | Linguistics | 135 | 7.9K | 66 | 30 |
| 71 | Mobile Computing | 140 | 7.9K | 17 | 7 |
| 72 | water supply | 85 | 7.8K | 71 | 42 |
| 73 | plant molecular biology | 49 | 7.7K | 268 | 140 |
| 74 | United States | 149 | 7.5K | 504 | 342 |
| 75 | Europe | 302 | 7.5K | 98 | 92 |
| 76 | Tourism | 90 | 7.4K | 106 | 64 |
| 77 | Materials | 125 | 7.2K | 1036 | 739 |
| 78 | Soil biology | 88 | 7.2K | 54 | 46 |
| 79 | marketing | 153 | 7.1K | 54 | 128 |
| 80 | Social Psychology | 115 | 7.0K | 233 | 194 |
| 81 | Cell Biology | 45 | 6.6K | 930 | 565 |
| 82 | Analytical Chemistry | 127 | 6.5K | 613 | 390 |
| 83 | Discourse Analysis | 84 | 6.4K | 1 | 2 |
| 84 | Signal Processing | 83 | 6.3K | 370 | 215 |
| 85 | Psychophysiology | 148 | 6.1K | 316 | 332 |
| 86 | finance | 211 | 6.0K | 40 | 87 |
| 87 | Cognition | 180 | 5.9K | 102 | 151 |
| 88 | Energy Policy | 65 | 5.8K | 347 | 181 |
| 89 | Operations Research | 185 | 5.8K | 70 | 107 |
| 90 | Education | 251 | 5.8K | 200 | 203 |
| 91 | Child psychology | 131 | 5.8K | 124 | 163 |
| 92 | Soil Science | 86 | 5.7K | 168 | 90 |
| 93 | Meteorology | 88 | 5.7K | 275 | 222 |
| 94 | Planets | 136 | 5.7K | 170 | 175 |
| 95 | Forecasting | 97 | 5.6K | 2 | 3 |
| 96 | Statistical physics | 220 | 5.6K | 363 | 379 |
| 97 | Polymers | 264 | 5.6K | 383 | 486 |
| 98 | computer networks | 155 | 5.5K | 110 | 107 |
| 99 | energy resources | 51 | 5.4K | 130 | 77 |
| 100 | Neurology | 103 | 5.4K | 812 | 745 |
| 101 | Psychiatry | 139 | 5.3K | 449 | 480 |
| 102 | Agriculture | 80 | 5.2K | 190 | 101 |
| 103 | polymerization | 245 | 5.2K | 316 | 418 |
| 104 | nanoscience | 63 | 5.0K | 525 | 354 |
| 105 | Transportation | 93 | 5.0K | 173 | 104 |
| 106 | Geomorphology | 61 | 5.0K | 154 | 60 |
| 107 | Medical Anthropology | 82 | 5.0K | 116 | 107 |
| 108 | Mathematics | 319 | 4.9K | 559 | 480 |
| 109 | economic forecasting | 75 | 4.8K | 2 | 5 |
| 110 | Production Management | 98 | 4.8K | 47 | 87 |
| 111 | Economic History | 223 | 4.7K | 120 | 137 |
| 112 | Mental Disorders | 120 | 4.6K | 265 | 326 |
| 113 | Geochemistry | 83 | 4.6K | 338 | 268 |
| 114 | Electronics | 81 | 4.6K | 569 | 286 |
| 115 | Agricultural Ecology | 65 | 4.5K | 68 | 60 |
| 116 | Health Policy | 119 | 4.5K | 164 | 129 |
| 117 | Image Processing | 53 | 4.5K | 386 | 201 |
| 118 | Renewable Energy Sources | 72 | 4.5K | 288 | 348 |
| 119 | Epidemiology | 136 | 4.4K | 324 | 324 |
| 120 | Developing countries | 133 | 4.3K | 99 | 118 |
| 121 | Environmental Management | 85 | 4.3K | 276 | 255 |
| 122 | Applied Linguistics | 60 | 4.3K | 21 | 3 |
| 123 | Evolution | 45 | 4.2K | 390 | 265 |
| 124 | Behavior | 101 | 4.2K | 406 | 462 |
| 125 | Learning disabilities | 103 | 4.0K | 31 | 26 |
| 126 | population geography | 56 | 4.0K | 4 | 2 |
| 127 | Water pollution | 89 | 4.0K | 317 | 325 |
| 128 | Economic Development | 103 | 4.0K | 78 | 127 |
| 129 | biological evolution | 33 | 4.0K | 535 | 331 |
| 130 | Organizational Sociology | 87 | 3.9K | 2 | 3 |
| 131 | Oceanography | 77 | 3.9K | 246 | 210 |
| 132 | Memory | 63 | 3.8K | 283 | 186 |
| 133 | Microbial Ecology | 33 | 3.8K | 561 | 352 |
| 134 | Plant diseases | 70 | 3.7K | 251 | 135 |
| 135 | Wildlife conservation | 52 | 3.7K | 124 | 90 |
| 136 | Materials Science | 73 | 3.7K | 909 | 738 |
| 137 | city planning | 46 | 3.6K | 241 | 89 |
| 138 | Psycholinguistics | 71 | 3.6K | 98 | 91 |
| 139 | Biophysics | 89 | 3.6K | 1032 | 886 |
| 140 | Child Development | 112 | 3.5K | 187 | 236 |
| 141 | Neuropsychology | 73 | 3.5K | 343 | 260 |
| 142 | Sustainable Development | 48 | 3.5K | 184 | 115 |
| 143 | Artificial Intelligence | 99 | 3.4K | 426 | 449 |
| 144 | personality | 45 | 3.4K | 313 | 229 |
| 144 | Meteorites | 36 | 3.4K | 239 | 185 |
| 146 | United Kingdom | 193 | 3.4K | 45 | 168 |
| 147 | Computer Science | 104 | 3.3K | 59 | 35 |
| 148 | Strategic planning | 38 | 3.3K | 33 | 13 |
| 149 | Public Policy | 91 | 3.2K | 126 | 110 |
| 150 | Biometrics | 118 | 3.2K | 56 | 88 |
| 151 | Culture | 100 | 3.2K | 38 | 6 |
| 152 | Human-Computer Interaction | 111 | 3.2K | 21 | 57 |
| 153 | Clinical Psychology | 69 | 3.2K | 170 | 185 |
| 154 | Developmental Disabilities | 62 | 3.1K | 116 | 102 |
| 155 | Engineering | 77 | 3.1K | 602 | 321 |
| 156 | International Finance | 86 | 3.0K | 88 | 82 |
| 157 | Educational Psychology | 64 | 3.0K | 201 | 168 |
| 158 | Toxicology | 77 | 3.0K | 772 | 702 |
| 159 | Process Control | 67 | 2.9K | 23 | 69 |
| 160 | Humanities | 54 | 2.9K | 80 | 10 |
| 161 | Hydraulic Engineering | 24 | 2.8K | 251 | 70 |
| 162 | Environmental pollutants | 73 | 2.8K | 171 | 180 |
| 163 | Natural resources | 21 | 2.8K | 174 | 48 |
| 164 | Environmental Chemistry | 67 | 2.8K | 179 | 326 |
| 165 | Chemical Engineering | 59 | 2.8K | 1132 | 976 |
| 166 | internet | 71 | 2.8K | 105 | 113 |
| 167 | Biodiversity | 56 | 2.8K | 310 | 287 |
| 168 | Health Services Research | 58 | 2.8K | 214 | 148 |
| 169 | Hydrodynamics | 18 | 2.7K | 182 | 30 |
| 170 | Australia | 88 | 2.6K | 117 | 81 |
| 171 | biological monitoring | 59 | 2.6K | 5 | 9 |
| 172 | pollutants | 58 | 2.6K | 182 | 165 |
| 173 | Biochemical Engineering | 22 | 2.6K | 1218 | 816 |
| 174 | Perception | 43 | 2.5K | 381 | 258 |
| 175 | Automation | 38 | 2.5K | 544 | 400 |
| 176 | Political Science | 125 | 2.5K | 154 | 178 |
| 177 | Telecommunication Systems | 62 | 2.5K | 116 | 39 |
| 178 | Mathematical Physics | 134 | 2.5K | 321 | 380 |
| 179 | Econometrics | 86 | 2.5K | 106 | 164 |
| 180 | Sociolinguistics | 38 | 2.5K | 26 | 10 |
| 180 | Psychometrics | 12 | 2.5K | 195 | 58 |
| 182 | Information Science | 59 | 2.5K | 310 | 272 |
| 183 | sustainability | 43 | 2.4K | 52 | 85 |
| 184 | educational planning | 67 | 2.4K | 2 | 11 |
| 185 | Nonlinear Dynamics | 106 | 2.4K | 266 | 323 |
| 186 | Composite Materials | 91 | 2.4K | 367 | 540 |
| 187 | Nanostructures | 23 | 2.4K | 565 | 276 |
| 188 | Business Ethics | 30 | 2.3K | 134 | 129 |
| 189 | human behavior | 56 | 2.3K | 432 | 557 |
| 190 | Brain | 49 | 2.3K | 643 | 544 |
| 191 | Electrical Engineering | 56 | 2.3K | 666 | 265 |
| 192 | commerce | 58 | 2.2K | 96 | 191 |
| 193 | Parasitology | 58 | 2.2K | 337 | 208 |
| 194 | International Relations | 148 | 2.2K | 29 | 70 |
| 195 | Virology | 24 | 2.2K | 853 | 714 |
| 196 | Oncology | 12 | 2.2K | 887 | 636 |
| 197 | Feasibility studies | 16 | 2.2K | 55 | 4 |
| 198 | Neurophysiology | 30 | 2.2K | 848 | 637 |
| 199 | Social work | 131 | 2.1K | 94 | 106 |
| 200 | Internet of Things | 49 | 2.1K | 136 | 120 |
| 201 | Optics | 66 | 2.1K | 971 | 687 |
| 202 | innovation | 18 | 2.1K | 106 | 112 |
| 203 | Chemical analysis | 27 | 2.1K | 196 | 46 |
| 204 | Venture Capital | 9 | 2.0K | 105 | 90 |
| 205 | world | 35 | 2.0K | 86 | 92 |
| 206 | Volcanoes | 46 | 2.0K | 23 | 19 |
| 207 | consumers | 20 | 2.0K | 32 | 6 |
| 208 | Biocompatible Materials | 50 | 2.0K | 920 | 995 |
| 209 | Parasites | 51 | 2.0K | 168 | 120 |
| 210 | Leadership | 36 | 2.0K | 30 | 69 |
| 211 | health services accessibility | 53 | 2.0K | 76 | 65 |
| 212 | psychotherapy | 46 | 1.9K | 247 | 259 |
| 213 | economic policy | 107 | 1.9K | 149 | 193 |
| 214 | Entomology | 52 | 1.9K | 409 | 242 |
| 215 | Cytology | 36 | 1.9K | 1119 | 1039 |
| 216 | Photonics | 38 | 1.9K | 485 | 417 |
| 217 | Food | 27 | 1.9K | 943 | 547 |
| 218 | Environmental Toxicology | 32 | 1.9K | 529 | 378 |
| 219 | Educational Technology | 72 | 1.9K | 74 | 110 |
| 220 | freshwater biology | 34 | 1.9K | 109 | 75 |
| 221 | rehabilitation | 63 | 1.9K | 276 | 301 |
| 222 | Solar System | 44 | 1.8K | 148 | 130 |
| 222 | Soil ecology | 26 | 1.8K | 128 | 69 |
| 224 | Mental Health | 72 | 1.8K | 156 | 158 |
| 225 | Health | 49 | 1.8K | 343 | 294 |
| 226 | Genetics | 31 | 1.8K | 948 | 859 |
| 227 | Nervous system | 62 | 1.8K | 389 | 531 |
| 228 | Land use | 27 | 1.8K | 184 | 79 |
| 229 | Higher Education | 47 | 1.8K | 25 | 17 |
| 230 | Parasitic Diseases | 45 | 1.8K | 275 | 236 |
| 231 | Developmental Psychology | 66 | 1.8K | 119 | 193 |
| 232 | Radio | 16 | 1.8K | 580 | 296 |
| 233 | Metallurgy | 24 | 1.7K | 733 | 397 |
| 234 | Microelectronics | 36 | 1.7K | 410 | 392 |
| 235 | Ocean Engineering | 56 | 1.7K | 301 | 299 |
| 236 | miniaturization | 27 | 1.7K | 497 | 464 |
| 237 | System analysis | 46 | 1.7K | 421 | 321 |
| 238 | Memory disorders | 26 | 1.7K | 17 | 8 |
| 239 | Research Design | 47 | 1.7K | 147 | 200 |
| 240 | Medical Laboratory Science | 8 | 1.7K | 1123 | 432 |
| 241 | Zoology | 45 | 1.7K | 542 | 357 |
| 242 | Marine Biology | 58 | 1.6K | 504 | 533 |
| 243 | local government | 21 | 1.6K | 41 | 12 |
| 244 | Engineering Geology | 26 | 1.6K | 382 | 217 |
| 245 | Extreme Value Theory | 36 | 1.6K | 1 | 1 |
| 246 | industrial relations | 78 | 1.6K | 54 | 52 |
| 247 | Systems Engineering | 38 | 1.6K | 419 | 269 |
| 248 | Health Education | 50 | 1.6K | 317 | 265 |
| 249 | Growth | 27 | 1.6K | 308 | 344 |
| 250 | Audiology | 30 | 1.6K | 168 | 118 |
| 251 | hospice care | 64 | 1.5K | 8 | 7 |
| 252 | Social policy | 51 | 1.5K | 82 | 59 |
| 253 | China | 43 | 1.5K | 545 | 328 |
| 254 | Development | 45 | 1.5K | 69 | 124 |
| 255 | language | 32 | 1.5K | 131 | 114 |
| 256 | Paleoclimatology | 28 | 1.5K | 289 | 225 |
| 257 | Solar Energy | 27 | 1.5K | 377 | 282 |
| 258 | Cybernetics | 25 | 1.5K | 423 | 323 |
| 259 | Data Mining | 25 | 1.5K | 319 | 258 |
| 260 | Public Administration | 43 | 1.4K | 251 | 185 |
| 260 | Mental Health Services | 48 | 1.4K | 167 | 146 |
| 262 | Cognitive Science | 35 | 1.4K | 295 | 306 |
| 263 | Software Engineering | 71 | 1.4K | 65 | 153 |
| 264 | social science | 8 | 1.4K | 62 | 18 |
| 265 | Child | 55 | 1.4K | 377 | 390 |
| 266 | Popular culture | 24 | 1.4K | 58 | 4 |
| 267 | Human Rights | 39 | 1.4K | 43 | 16 |
| 267 | Economic Assistance | 32 | 1.4K | 90 | 121 |
| 269 | health planning | 39 | 1.4K | 395 | 237 |
| 270 | Human genetics | 10 | 1.3K | 882 | 923 |
| 271 | Catalysis | 50 | 1.3K | 1035 | 1219 |
| 272 | Critical Discourse Analysis | 23 | 1.3K | 1 | 1 |
| 272 | Mental illness | 36 | 1.3K | 404 | 507 |
| 274 | Social Change | 29 | 1.3K | 115 | 200 |
| 275 | Feminism | 46 | 1.3K | 30 | 21 |
| 276 | Social welfare | 39 | 1.3K | 65 | 36 |
| 277 | Gender Studies | 30 | 1.3K | 25 | 21 |
| 278 | disease vectors | 36 | 1.3K | 108 | 99 |
| 279 | Petrology | 35 | 1.3K | 269 | 295 |
| 280 | energy conservation | 27 | 1.3K | 505 | 572 |
| 281 | ecosystem | 37 | 1.3K | 235 | 333 |
| 281 | software | 25 | 1.3K | 165 | 95 |
| 283 | Electrochemistry | 95 | 1.3K | 742 | 966 |
| 284 | Learning | 44 | 1.3K | 225 | 318 |
| 285 | Economic Geography | 33 | 1.3K | 27 | 27 |
| 286 | Organizational change | 24 | 1.3K | 79 | 57 |
| 287 | Neurochemistry | 20 | 1.3K | 867 | 638 |
| 288 | Geriatrics | 50 | 1.3K | 548 | 563 |
| 289 | Photochemistry | 18 | 1.2K | 578 | 266 |
| 290 | Gerontology | 41 | 1.2K | 384 | 292 |
| 291 | Second Language Acquisition | 10 | 1.2K | 42 | 20 |
| 292 | Cognitive neuroscience | 22 | 1.2K | 315 | 305 |
| 293 | disabilities | 41 | 1.2K | 77 | 78 |
| 294 | Nuclear Energy | 24 | 1.2K | 249 | 103 |
| 294 | Animal ecology | 34 | 1.2K | 273 | 259 |
| 296 | Geriatric Psychiatry | 30 | 1.2K | 159 | 120 |
| 296 | Fisheries | 31 | 1.2K | 342 | 276 |
| 298 | medical education | 41 | 1.2K | 326 | 279 |
| 299 | Criminology | 54 | 1.2K | 131 | 159 |
| 300 | Autism | 21 | 1.2K | 169 | 154 |
| 301 | Computer Graphics | 28 | 1.2K | 453 | 329 |
| 302 | Biogeochemical cycles | 13 | 1.2K | 150 | 160 |
| 303 | Ethics | 90 | 1.2K | 18 | 62 |
| 304 | Ophthalmology | 10 | 1.2K | 905 | 435 |
| 305 | health services | 27 | 1.2K | 199 | 143 |
| 306 | soil management | 31 | 1.1K | 70 | 91 |
| 306 | Nanostructured Materials | 48 | 1.1K | 793 | 955 |
| 308 | Metals | 16 | 1.1K | 854 | 501 |
| 309 | Speech Disorders | 40 | 1.1K | 207 | 217 |
| 310 | tests | 12 | 1.1K | 34 | 15 |
| 311 | Biomass Energy | 20 | 1.1K | 864 | 792 |
| 312 | Political Participation | 23 | 1.1K | 48 | 32 |
| 313 | feeding behavior | 18 | 1.1K | 207 | 148 |
| 313 | Appetite | 18 | 1.1K | 166 | 110 |
| 315 | Political Geography | 15 | 1.1K | 71 | 27 |
| 316 | Biogeography | 26 | 1.1K | 250 | 313 |
| 317 | Biogeochemistry | 31 | 1.1K | 264 | 343 |
| 318 | Human Resources | 37 | 1.1K | 14 | 66 |
| 319 | Pharmacology | 38 | 1.1K | 1403 | 1436 |
| 319 | Immunity | 16 | 1.1K | 641 | 673 |
| 321 | global environmental change | 26 | 1.1K | 130 | 202 |
| 322 | crime | 34 | 1.1K | 111 | 105 |
| 323 | Neural circuitry | 23 | 1.1K | 591 | 459 |
| 324 | Aging | 35 | 1.1K | 660 | 659 |
| 325 | Genomics | 28 | 1.0K | 854 | 795 |
| 326 | Substance Abuse | 27 | 1.0K | 376 | 283 |
| 326 | Teaching | 28 | 1.0K | 442 | 305 |
| 328 | human development | 36 | 1.0K | 126 | 181 |
| 329 | Reading | 31 | 1.0K | 95 | 101 |
| 330 | Welfare Economics | 23 | 1.0K | 75 | 61 |
| 331 | civil rights | 22 | 1.0K | 43 | 9 |
| 332 | Photobiology | 13 | 1.0K | 523 | 181 |
| 333 | Organizational Behavior | 21 | 1.0K | 134 | 181 |
| 333 | Optical materials | 29 | 1.0K | 832 | 889 |
| 335 | Mineralogy | 28 | 989 | 419 | 392 |
| 336 | Jurisprudence | 72 | 986 | 55 | 122 |
| 337 | Criminal psychology | 39 | 983 | 127 | 156 |
| 338 | Experimental Psychology | 21 | 971 | 172 | 155 |
| 339 | Animal Behavior | 38 | 965 | 473 | 611 |
| 340 | Sports | 24 | 960 | 682 | 509 |
| 341 | Ecosystem management | 25 | 957 | 99 | 126 |
| 341 | Dementia | 36 | 957 | 306 | 210 |
| 343 | Active Learning | 19 | 951 | 5 | 1 |
| 344 | Health Services Administration | 14 | 950 | 305 | 143 |
| 345 | Host-parasite interactions | 19 | 949 | 363 | 462 |
| 346 | Citizenship | 15 | 945 | 9 | 2 |
| 347 | Developmental Biology | 11 | 935 | 885 | 668 |
| 348 | Nuclear Engineering | 55 | 932 | 244 | 225 |
| 349 | atmospheric models | 22 | 931 | 178 | 196 |
| 350 | lasers | 20 | 930 | 791 | 421 |
| 351 | Cancer | 13 | 926 | 1241 | 1001 |
| 352 | Soil fertility | 13 | 923 | 87 | 66 |
| 353 | Archaeology | 11 | 914 | 657 | 251 |
| 354 | Radiation effects | 14 | 910 | 149 | 83 |
| 355 | emergency management | 16 | 904 | 144 | 70 |
| 356 | Industrial Safety | 11 | 898 | 492 | 173 |
| 357 | Remote Sensing | 31 | 891 | 272 | 167 |
| 358 | Religion | 85 | 890 | 48 | 21 |
| 358 | Consumer Protection | 9 | 890 | 54 | 19 |
| 360 | Light | 7 | 886 | 565 | 440 |
| 361 | Feminist theory | 23 | 881 | 15 | 7 |
| 362 | Socialism | 19 | 880 | 22 | 8 |
| 363 | Neurons | 1 | 878 | 739 | 427 |
| 364 | women | 33 | 872 | 91 | 39 |
| 365 | Customer Relations | 8 | 869 | 18 | 3 |
| 366 | Production Planning | 29 | 868 | 7 | 29 |
| 366 | Production Control | 29 | 868 | 7 | 29 |
| 368 | Social behavior | 27 | 866 | 300 | 339 |
| 369 | Emotions | 17 | 856 | 195 | 194 |
| 370 | Industrial Sociology | 18 | 846 | 31 | 20 |
| 371 | Land Use Planning | 29 | 844 | 32 | 71 |
| 372 | Virulence | 13 | 838 | 443 | 468 |
| 373 | Anatomy | 9 | 837 | 1080 | 549 |
| 374 | Anthropology | 21 | 836 | 512 | 291 |
| 375 | Paleoecology | 17 | 833 | 394 | 312 |
| 376 | Pediatrics | 14 | 831 | 904 | 686 |
| 377 | Computational Biology | 23 | 826 | 740 | 724 |
| 378 | Technological Innovations | 15 | 822 | 287 | 163 |
| 379 | Solid State Chemistry | 32 | 821 | 784 | 665 |
| 380 | health behavior | 18 | 820 | 267 | 203 |
| 381 | Sedimentology | 8 | 817 | 305 | 124 |
| 382 | Malaria | 24 | 809 | 128 | 123 |
| 383 | Information Theory | 28 | 806 | 357 | 357 |
| 384 | consumer behavior | 20 | 805 | 93 | 143 |
| 385 | Colloids | 23 | 800 | 1475 | 1452 |
| 386 | Food Policy | 8 | 797 | 136 | 64 |
| 386 | agricultural policy | 8 | 797 | 93 | 49 |
| 388 | Quality Control | 29 | 795 | 306 | 345 |
| 389 | Industrial Ecology | 1 | 791 | 322 | 44 |
| 390 | Cerebral cortex | 26 | 786 | 237 | 324 |
| 391 | Immunology | 19 | 782 | 1105 | 1073 |
| 391 | Surface Chemistry | 28 | 782 | 1379 | 1417 |
| 391 | Paleogeography | 15 | 782 | 383 | 299 |
| 391 | Diabetes | 10 | 782 | 928 | 683 |
| 395 | Diabetes mellitus | 9 | 780 | 934 | 665 |
| 396 | international trade | 13 | 779 | 193 | 112 |
| 397 | environmental exposure | 24 | 774 | 480 | 520 |
| 398 | Physiology | 35 | 772 | 1138 | 1360 |
| 399 | Europa | 27 | 768 | 69 | 87 |
| 400 | Bioinformatics | 12 | 765 | 938 | 622 |
| 401 | Law | 80 | 762 | 96 | 128 |
| 402 | Systems Theory | 13 | 760 | 84 | 5 |
| 403 | Primary health care | 37 | 755 | 325 | 359 |
| 404 | Gender identity | 21 | 753 | 26 | 3 |
| 405 | Rural Development | 36 | 750 | 33 | 88 |
| 406 | Structural Engineering | 25 | 745 | 519 | 461 |
| 407 | cultural policy | 17 | 743 | 48 | 19 |
| 408 | Ethology | 29 | 738 | 431 | 599 |
| 409 | Language Acquisition | 26 | 735 | 19 | 20 |
| 409 | Liposomes | 22 | 735 | 96 | 138 |
| 409 | Lipid bilayers | 22 | 735 | 77 | 130 |
| 412 | Mass Media | 14 | 731 | 272 | 52 |
| 413 | Educational Sociology | 8 | 729 | 155 | 14 |
| 414 | Language and Education | 8 | 728 | 35 | 4 |
| 415 | Coral reef biology | 16 | 727 | 81 | 80 |
| 415 | Evolutionary Computation | 4 | 727 | 370 | 166 |
| 417 | Speech | 28 | 726 | 202 | 277 |
| 418 | mutagens | 13 | 725 | 271 | 252 |
| 419 | Neurobiology | 6 | 714 | 1036 | 707 |
| 420 | Neurolinguistics | 12 | 713 | 155 | 130 |
| 420 | Genetic algorithms | 3 | 713 | 311 | 140 |
| 422 | Experimental Design | 17 | 712 | 66 | 71 |
| 423 | probabilities | 47 | 710 | 252 | 241 |
| 424 | design | 23 | 708 | 31 | 39 |
| 425 | Nuclear Chemistry | 10 | 703 | 532 | 149 |
| 425 | Building | 9 | 703 | 280 | 98 |
| 427 | Insects | 17 | 701 | 504 | 319 |
| 428 | Qualitative Research | 25 | 693 | 85 | 105 |
| 429 | Conservation Biology | 22 | 688 | 287 | 355 |
| 429 | Information Retrieval | 7 | 688 | 238 | 112 |
| 431 | Public Spaces | 13 | 684 | 4 | 1 |
| 431 | personal space | 13 | 684 | 2 | 1 |
| 433 | Philosophy | 155 | 681 | 117 | 249 |
| 433 | Semiconductors | 45 | 681 | 381 | 452 |
| 435 | Financial management | 13 | 680 | 125 | 123 |
| 435 | Quantum theory | 40 | 680 | 157 | 227 |
| 437 | Biomedical Engineering | 28 | 673 | 1616 | 1753 |
| 438 | Cell differentiation | 6 | 669 | 900 | 697 |
| 439 | Environmental Microbiology | 11 | 666 | 609 | 543 |
| 440 | Health Information Management | 10 | 664 | 73 | 155 |
| 441 | Globalization | 19 | 663 | 104 | 85 |
| 442 | Psychopharmacology | 13 | 659 | 618 | 553 |
| 443 | Intelligent Transportation Systems | 21 | 658 | 287 | 374 |
| 444 | drug control | 21 | 656 | 70 | 64 |
| 445 | Birds | 35 | 654 | 252 | 259 |
| 446 | Bilingualism | 12 | 650 | 18 | 12 |
| 447 | Plastics | 26 | 648 | 434 | 391 |
| 448 | data collection | 13 | 647 | 349 | 315 |
| 449 | Environmental Psychology | 7 | 646 | 173 | 130 |
| 450 | Organic Chemistry | 30 | 645 | 1089 | 1151 |
| 450 | Freezing | 32 | 645 | 32 | 29 |
| 452 | Social problems | 8 | 642 | 336 | 188 |
| 453 | sports administration | 12 | 641 | 79 | 33 |
| 453 | Decision making | 20 | 641 | 408 | 409 |
| 455 | Risk Management | 25 | 640 | 85 | 124 |
| 456 | Hazardous waste | 12 | 639 | 346 | 362 |
| 457 | Socioeconomic Factors | 19 | 637 | 177 | 161 |
| 458 | Climatology | 25 | 635 | 494 | 623 |
| 459 | genome | 6 | 634 | 878 | 641 |
| 460 | Risk assessment | 9 | 632 | 219 | 35 |
| 461 | sexual orientation | 14 | 631 | 3 | 1 |
| 462 | Medical Oncology | 6 | 629 | 957 | 592 |
| 463 | radioactive waste | 11 | 624 | 305 | 344 |
| 463 | industrial waste | 11 | 624 | 328 | 350 |
| 465 | free radicals | 7 | 618 | 809 | 618 |
| 466 | History of Medicine | 24 | 608 | 92 | 15 |
| 467 | Schizophrenia | 16 | 607 | 359 | 375 |
| 468 | visualization | 9 | 603 | 740 | 247 |
| 469 | Child welfare | 32 | 600 | 225 | 251 |
| 470 | Radiochemistry | 8 | 592 | 539 | 138 |
| 470 | Adolescent | 27 | 592 | 544 | 622 |
| 470 | children | 27 | 592 | 54 | 146 |
| 473 | Semiotics | 20 | 591 | 45 | 4 |
| 474 | Genetic engineering | 16 | 587 | 783 | 777 |
| 474 | Obesity | 28 | 587 | 516 | 737 |
| 476 | Architectural Design | 12 | 585 | 128 | 50 |
| 476 | Action Research | 9 | 585 | 59 | 13 |
| 478 | Bioethics | 41 | 581 | 130 | 155 |
| 479 | movement | 7 | 569 | 159 | 63 |
| 480 | environmental indicators | 23 | 567 | 216 | 402 |
| 481 | Cognitive Psychology | 17 | 563 | 77 | 46 |
| 482 | Paleontology | 17 | 562 | 495 | 381 |
| 483 | behavioral medicine | 21 | 555 | 361 | 539 |
| 484 | Mechanical Engineering | 40 | 553 | 586 | 627 |
| 484 | foreign exchange | 10 | 553 | 108 | 81 |
| 486 | fuel cells | 6 | 551 | 866 | 590 |
| 487 | Mineral resources | 20 | 547 | 66 | 138 |
| 488 | Dynamics | 40 | 545 | 238 | 326 |
| 489 | Agronomy | 10 | 543 | 151 | 183 |
| 490 | Bioorganic chemistry | 21 | 540 | 1070 | 1139 |
| 490 | peace | 28 | 540 | 84 | 161 |
| 492 | Building Materials | 25 | 537 | 571 | 896 |
| 493 | Medical Technology | 8 | 533 | 846 | 457 |
| 493 | Metabolic diseases | 2 | 533 | 1842 | 947 |
| 493 | Multimedia Systems | 37 | 533 | 304 | 445 |
| 493 | actuators | 17 | 533 | 892 | 942 |
| 493 | transducers | 17 | 533 | 892 | 942 |
| 498 | economic development projects | 20 | 526 | 21 | 20 |
| 499 | Manufacturing Processes | 23 | 524 | 780 | 864 |
| 499 | Water quality management | 15 | 524 | 674 | 503 |
| 501 | Plant genetic engineering | 7 | 523 | 498 | 352 |
| 502 | Production Engineering | 24 | 521 | 578 | 568 |
| 502 | Asia | 36 | 521 | 503 | 603 |
| 504 | Physical Geography | 15 | 519 | 113 | 106 |
| 505 | Aquatic ecology | 15 | 518 | 297 | 224 |
| 506 | Agricultural Science | 9 | 517 | 87 | 111 |
| 506 | Public opinion | 15 | 517 | 109 | 102 |
| 508 | Distance Education | 15 | 516 | 65 | 65 |
| 509 | Fluid Mechanics | 15 | 512 | 647 | 517 |
| 510 | History | 145 | 506 | 67 | 75 |
| 510 | Analytical Biochemistry | 10 | 506 | 873 | 553 |
| 510 | solar cells | 19 | 506 | 202 | 360 |
| 513 | natural disasters | 13 | 505 | 452 | 423 |
| 514 | violence | 20 | 504 | 297 | 361 |
| 515 | ethnicity | 25 | 502 | 110 | 94 |
| 516 | soil conservation | 18 | 498 | 150 | 185 |
| 517 | Urban Policy | 8 | 496 | 426 | 238 |
| 518 | cryosphere | 22 | 495 | 96 | 152 |
| 519 | Forensic Psychology | 26 | 494 | 49 | 61 |
| 520 | child abuse | 13 | 493 | 330 | 337 |
| 521 | Radiation | 30 | 492 | 531 | 604 |
| 522 | Ornithology | 25 | 487 | 252 | 242 |
| 523 | Carcinogenesis | 3 | 485 | 831 | 375 |
| 523 | carcinogens | 3 | 485 | 847 | 378 |
| 525 | solar power | 17 | 483 | 192 | 334 |
| 526 | Metaphor | 6 | 482 | 10 | 3 |
| 526 | Randomized Controlled Trials | 24 | 482 | 233 | 203 |
| 528 | Community Psychology | 14 | 479 | 189 | 221 |
| 528 | atmosphere | 18 | 479 | 191 | 228 |
| 530 | Forest Ecology | 20 | 474 | 302 | 422 |
| 530 | Economic planning | 9 | 474 | 200 | 93 |
| 532 | Language Disorders | 34 | 472 | 170 | 258 |
| 532 | Medical Ethics | 33 | 472 | 211 | 232 |
| 534 | Environmental Geology | 16 | 471 | 607 | 595 |
| 535 | Embryology | 3 | 470 | 1186 | 700 |
| 536 | Geographic information systems | 27 | 469 | 170 | 188 |
| 536 | space environment | 25 | 469 | 24 | 40 |
| 536 | Groundwater | 12 | 469 | 200 | 159 |
| 539 | Organizational innovation | 11 | 465 | 8 | 2 |
| 540 | Earthquake Engineering | 12 | 459 | 671 | 585 |
| 540 | Ecohydrology | 6 | 459 | 188 | 51 |
| 542 | Consumer education | 10 | 458 | 87 | 99 |
| 543 | mass transfer | 5 | 451 | 1332 | 768 |
| 544 | Health insurance | 3 | 449 | 384 | 152 |
| 545 | Plant Genetics | 4 | 446 | 548 | 355 |
| 545 | Physical Chemistry | 12 | 446 | 1095 | 934 |
| 547 | Waste management | 17 | 445 | 434 | 360 |
| 548 | Molecular ecology | 8 | 441 | 597 | 589 |
| 549 | Cyberterrorism | 3 | 437 | 29 | 2 |
| 550 | Regional Economics | 14 | 436 | 111 | 106 |
| 550 | energy development | 10 | 436 | 302 | 382 |
| 552 | Medical Microbiology | 8 | 435 | 1136 | 1055 |
| 553 | Ethnology | 25 | 431 | 346 | 312 |
| 554 | Transport | 15 | 429 | 177 | 219 |
| 554 | Vocational guidance | 12 | 429 | 392 | 428 |
| 556 | Political Sociology | 10 | 428 | 206 | 154 |
| 557 | Futures | 18 | 426 | 34 | 48 |
| 558 | Vision | 14 | 423 | 276 | 311 |
| 558 | amino acids | 4 | 423 | 462 | 159 |
| 560 | Alzheimer's disease | 20 | 422 | 474 | 417 |
| 561 | Robotics | 13 | 420 | 786 | 681 |
| 561 | Regional Development | 6 | 420 | 153 | 65 |
| 561 | Development planning | 6 | 420 | 125 | 55 |
| 564 | vibration | 9 | 418 | 642 | 444 |
| 564 | pain | 15 | 418 | 489 | 573 |
| 566 | Radiology | 9 | 417 | 696 | 368 |
| 567 | Sea | 14 | 416 | 156 | 177 |
| 567 | Fishery resources | 14 | 416 | 176 | 196 |
| 569 | Homeostasis | 1 | 415 | 583 | 466 |
| 569 | Cell metabolism | 1 | 415 | 984 | 493 |
| 571 | soil pollution | 14 | 409 | 87 | 89 |
| 572 | Surgery | 10 | 408 | 720 | 755 |
| 572 | Theology | 65 | 408 | 54 | 14 |
| 574 | Communication in medicine | 7 | 407 | 305 | 174 |
| 575 | Medical genetics | 11 | 406 | 1035 | 1133 |
| 576 | Juvenile delinquency | 21 | 405 | 68 | 94 |
| 577 | Travel | 8 | 403 | 350 | 189 |
| 578 | Scandinavia | 10 | 402 | 235 | 159 |
| 579 | conflict management | 13 | 398 | 66 | 90 |
| 580 | Medical Physics | 11 | 397 | 752 | 684 |
| 581 | Information Systems | 15 | 396 | 465 | 480 |
| 581 | Intelligence | 17 | 396 | 52 | 117 |
| 583 | Community Psychiatry | 12 | 395 | 371 | 380 |
| 584 | Political Psychology | 7 | 393 | 191 | 163 |
| 585 | electric vehicles | 3 | 392 | 305 | 106 |
| 586 | Corporate governance | 6 | 389 | 348 | 171 |
| 586 | East Asia | 9 | 389 | 248 | 62 |
| 588 | sedimentary basins | 8 | 386 | 85 | 77 |
| 589 | alcoholism | 14 | 385 | 563 | 610 |
| 590 | Disability Studies | 9 | 384 | 69 | 23 |
| 591 | Atmospheric Science | 12 | 383 | 46 | 46 |
| 591 | Corporate Social Responsibility | 2 | 383 | 404 | 123 |
| 591 | environmental auditing | 2 | 383 | 424 | 123 |
| 591 | Chronic diseases | 12 | 383 | 266 | 339 |
| 595 | tillage | 8 | 382 | 194 | 216 |
| 596 | Planetary Science | 12 | 381 | 196 | 149 |
| 597 | Probability | 15 | 378 | 177 | 208 |
| 598 | Psychiatric Epidemiology | 9 | 377 | 201 | 216 |
| 599 | drug addiction | 13 | 375 | 462 | 521 |
| 600 | Molecular evolution | 7 | 374 | 848 | 757 |
| 601 | Microwaves | 23 | 373 | 466 | 465 |
| 602 | Reproduction | 14 | 372 | 962 | 916 |
| 603 | Capitalism | 6 | 370 | 62 | 20 |
| 603 | Written communication | 8 | 370 | 28 | 31 |
| 605 | Risk | 14 | 367 | 158 | 230 |
| 605 | Forest Management | 17 | 367 | 316 | 453 |
| 605 | glycoproteins | 11 | 367 | 156 | 193 |
| 605 | Glycoconjugates | 11 | 367 | 156 | 193 |
| 605 | glycolipids | 11 | 367 | 156 | 193 |
| 610 | Development Economics | 8 | 366 | 166 | 128 |
| 610 | Water chemistry | 6 | 366 | 114 | 35 |
| 612 | Mass Spectrometry | 10 | 362 | 570 | 475 |
| 613 | Stress | 14 | 361 | 27 | 62 |
| 614 | Numerical Analysis | 12 | 359 | 1271 | 853 |
| 615 | Watershed management | 6 | 357 | 70 | 11 |
| 616 | Mycology | 23 | 353 | 462 | 741 |
| 617 | coal | 15 | 352 | 649 | 932 |
| 618 | reforestation | 7 | 351 | 60 | 24 |
| 618 | Computational Complexity | 3 | 351 | 1046 | 192 |
| 618 | afforestation | 7 | 351 | 60 | 24 |
| 618 | Attention | 21 | 351 | 524 | 695 |
| 622 | Evolutionary Genetics | 1 | 350 | 1124 | 191 |
| 622 | Molecular Epidemiology | 1 | 350 | 1124 | 191 |
| 622 | Stochastic Processes | 27 | 350 | 139 | 223 |
| 622 | Fungi | 22 | 350 | 271 | 555 |
| 626 | Demography | 10 | 348 | 275 | 265 |
| 627 | technology transfer | 8 | 347 | 67 | 90 |
| 627 | Radiobiology | 7 | 347 | 709 | 558 |
| 629 | Pathology | 10 | 345 | 937 | 952 |
| 630 | Social History | 28 | 344 | 63 | 74 |
| 631 | Structural dynamics | 6 | 343 | 680 | 557 |
| 632 | deviant behavior | 20 | 342 | 37 | 64 |
| 633 | Algebra | 54 | 341 | 236 | 363 |
| 634 | Visual Perception | 20 | 340 | 518 | 668 |
| 635 | drug evaluation | 2 | 339 | 1361 | 511 |
| 635 | proteins | 5 | 339 | 1381 | 883 |
| 637 | Project Management | 5 | 338 | 178 | 212 |
| 637 | Molecular Genetics | 9 | 338 | 960 | 985 |
| 639 | Nationalism | 23 | 337 | 27 | 37 |
| 639 | gene mapping | 9 | 337 | 950 | 999 |
| 641 | Marine Pollution | 19 | 336 | 372 | 662 |
| 642 | Microscopy | 12 | 335 | 589 | 485 |
| 643 | landscapes | 12 | 334 | 28 | 34 |
| 643 | Post-traumatic stress disorder | 8 | 334 | 409 | 370 |
| 645 | Logistics | 11 | 333 | 192 | 271 |
| 646 | environmental issues | 7 | 328 | 185 | 144 |
| 647 | Requirements Engineering | 11 | 327 | 8 | 30 |
| 648 | nucleic acids | 7 | 325 | 961 | 967 |
| 649 | Industrial Engineering | 18 | 324 | 611 | 860 |
| 650 | Environmentalism | 10 | 322 | 31 | 66 |
| 651 | Endocrinology | 8 | 319 | 1482 | 1420 |
| 651 | Quantum electronics | 13 | 319 | 731 | 620 |
| 653 | Industrial Design | 19 | 318 | 28 | 69 |
| 654 | Money | 12 | 317 | 45 | 113 |
| 655 | Research methodology | 7 | 316 | 31 | 35 |
| 656 | Prisons | 23 | 313 | 23 | 43 |
| 657 | Sustainable Engineering | 8 | 312 | 964 | 929 |
| 658 | terrorism | 14 | 310 | 54 | 52 |
| 659 | Landscape Ecology | 8 | 309 | 215 | 242 |
| 659 | concrete | 8 | 309 | 550 | 648 |
| 661 | Material Culture | 3 | 308 | 117 | 13 |
| 662 | Magnetic Resonance Spectroscopy | 23 | 307 | 365 | 452 |
| 663 | ecotourism | 2 | 306 | 314 | 77 |
| 664 | Volcanology | 2 | 304 | 31 | 7 |
| 665 | Multivariate Analysis | 13 | 299 | 192 | 212 |
| 666 | Labor Economics | 15 | 298 | 128 | 221 |
| 667 | Bioremediation | 12 | 297 | 217 | 351 |
| 667 | Proteome | 3 | 297 | 966 | 640 |
| 669 | sex crimes | 11 | 296 | 263 | 260 |
| 670 | Radio wave propagation | 17 | 295 | 217 | 218 |
| 670 | civilization | 51 | 295 | 105 | 81 |
| 672 | Geopolitics | 9 | 294 | 81 | 49 |
| 673 | Adult Education | 23 | 293 | 102 | 131 |
| 673 | Investments | 11 | 293 | 123 | 90 |
| 675 | Global Health | 17 | 290 | 284 | 304 |
| 675 | Health promotion | 18 | 290 | 332 | 447 |
| 677 | social conflict | 6 | 289 | 100 | 40 |
| 678 | Detectors | 12 | 288 | 704 | 670 |
| 679 | Traffic Engineering | 9 | 285 | 170 | 218 |
| 679 | Computer Vision | 10 | 285 | 568 | 679 |
| 681 | Population Genetics | 8 | 283 | 663 | 703 |
| 682 | Magnetic Materials | 17 | 282 | 608 | 795 |
| 682 | Elections | 22 | 282 | 70 | 134 |
| 684 | International security | 11 | 281 | 77 | 138 |
| 684 | Molecules | 10 | 281 | 858 | 665 |
| 686 | Sports Medicine | 9 | 279 | 1364 | 1107 |
| 687 | Computer Architecture | 13 | 278 | 165 | 137 |
| 687 | Cognitive Therapy | 6 | 278 | 385 | 294 |
| 689 | child behavior | 10 | 277 | 151 | 230 |
| 690 | Systems Biology | 16 | 276 | 534 | 719 |
| 690 | Bipolar Disorder | 5 | 276 | 217 | 191 |
| 690 | Microorganisms | 4 | 276 | 813 | 696 |
| 693 | Bereavement | 9 | 274 | 39 | 32 |
| 694 | epilepsy | 14 | 273 | 340 | 395 |
| 695 | Green Chemistry | 9 | 272 | 1009 | 1212 |
| 695 | Chemical Oceanography | 6 | 272 | 169 | 193 |
| 695 | Adolescent Psychology | 13 | 272 | 331 | 461 |
| 695 | probation | 11 | 272 | 18 | 5 |
| 699 | Cosmochemistry | 9 | 271 | 466 | 496 |
| 700 | Functional Analysis | 23 | 266 | 434 | 589 |
| 701 | Oligosaccharide | 5 | 265 | 188 | 181 |
| 701 | Carbohydrates | 5 | 265 | 295 | 231 |
| 703 | occupational diseases | 9 | 264 | 350 | 396 |
| 704 | Eating Disorders | 3 | 263 | 761 | 427 |
| 704 | Plant hormones | 6 | 263 | 155 | 139 |
| 704 | Hearing | 24 | 263 | 176 | 293 |
| 707 | Drug delivery systems | 5 | 262 | 1180 | 987 |
| 708 | Stem cells | 5 | 261 | 900 | 753 |
| 709 | Bacteriology | 8 | 260 | 995 | 1151 |
| 709 | Water Purification | 7 | 260 | 688 | 465 |
| 709 | corrections | 23 | 260 | 14 | 41 |
| 712 | Industry | 4 | 259 | 109 | 150 |
| 713 | Crystal growth | 10 | 258 | 527 | 525 |
| 714 | motivation | 4 | 257 | 288 | 196 |
| 715 | Social Ethics | 25 | 253 | 4 | 22 |
| 716 | Simulation Methods | 10 | 252 | 438 | 364 |
| 717 | Pharmaceutical Chemistry | 12 | 251 | 1737 | 1936 |
| 717 | Sustainable agriculture | 6 | 251 | 403 | 345 |
| 717 | educational innovations | 15 | 251 | 135 | 234 |
| 720 | Religion and Sociology | 8 | 248 | 78 | 27 |
| 720 | Chromosome mapping | 6 | 248 | 1085 | 1033 |
| 720 | Minerals | 13 | 248 | 214 | 310 |
| 723 | Signal Transduction | 6 | 247 | 890 | 939 |
| 724 | Mechatronics | 4 | 245 | 765 | 474 |
| 724 | Cosmology | 11 | 245 | 284 | 348 |
| 724 | Language Policy | 4 | 245 | 63 | 25 |
| 724 | curriculum evaluation | 10 | 245 | 125 | 135 |
| 728 | Occupational Health | 9 | 244 | 482 | 401 |
| 728 | Horticulture | 5 | 244 | 542 | 285 |
| 730 | Forensic Psychiatry | 26 | 243 | 99 | 220 |
| 731 | Oncogenes | 2 | 242 | 969 | 817 |
| 731 | Instructional systems | 6 | 242 | 71 | 44 |
| 733 | animals | 6 | 241 | 849 | 490 |
| 734 | Mutagenesis | 10 | 240 | 117 | 128 |
| 734 | Therapeutics | 11 | 240 | 719 | 911 |
| 736 | Special Education | 10 | 239 | 381 | 319 |
| 737 | disarmament | 23 | 237 | 17 | 61 |
| 738 | polar regions | 8 | 236 | 329 | 293 |
| 738 | Fuzzy systems | 8 | 236 | 965 | 599 |
| 740 | Microeconomics | 6 | 234 | 194 | 172 |
| 740 | chemical pollution | 1 | 234 | 12 | 6 |
| 740 | police | 29 | 234 | 39 | 106 |
| 743 | Africa | 30 | 233 | 294 | 497 |
| 744 | cosmic rays | 4 | 232 | 354 | 163 |
| 745 | wind erosion | 1 | 231 | 215 | 43 |
| 746 | Continuing Education | 14 | 229 | 119 | 101 |
| 747 | Parallel Processing | 4 | 228 | 376 | 299 |
| 747 | forest policy | 2 | 228 | 419 | 148 |
| 749 | Language planning | 4 | 227 | 131 | 16 |
| 750 | families | 17 | 224 | 271 | 366 |
| 751 | Long-Term Care | 7 | 223 | 292 | 328 |
| 751 | Long-term care facilities | 7 | 223 | 290 | 328 |
| 751 | civil service | 5 | 223 | 263 | 203 |
| 754 | Nursing | 14 | 222 | 816 | 796 |
| 755 | Nutrition | 10 | 218 | 2063 | 2335 |
| 756 | Computational Intelligence | 8 | 217 | 292 | 257 |
| 756 | philology | 4 | 217 | 476 | 16 |
| 758 | Otolaryngology | 5 | 216 | 350 | 256 |
| 758 | correctional psychology | 6 | 216 | 139 | 139 |
| 758 | Consciousness | 8 | 216 | 245 | 264 |
| 761 | Histology | 7 | 215 | 1097 | 1093 |
| 761 | nuclear magnetic resonance spectroscopy | 16 | 215 | 249 | 332 |
| 763 | carbon monoxide | 6 | 213 | 171 | 232 |
| 764 | Comparative Physiology | 5 | 212 | 589 | 496 |
| 764 | Microcirculation | 5 | 212 | 334 | 257 |
| 764 | Crisis management | 9 | 212 | 15 | 42 |
| 764 | Religion and Psychology | 11 | 212 | 142 | 139 |
| 764 | Medical innovations | 3 | 212 | 799 | 822 |
| 769 | Graph Theory | 16 | 211 | 244 | 246 |
| 769 | Flood forecasting | 9 | 211 | 9 | 19 |
| 769 | Flood control | 9 | 211 | 53 | 44 |
| 769 | behavior modification | 7 | 211 | 246 | 317 |
| 773 | nuclear astrophysics | 8 | 209 | 272 | 309 |
| 774 | Environmental Economics | 10 | 208 | 99 | 159 |
| 774 | Calorimetry | 9 | 208 | 625 | 544 |
| 774 | Thermal analysis | 9 | 208 | 625 | 544 |
| 777 | Food service management | 10 | 207 | 132 | 389 |
| 777 | Smart Materials | 11 | 207 | 410 | 491 |
| 779 | Historical Geography | 39 | 206 | 20 | 23 |
| 779 | race relations | 23 | 206 | 119 | 286 |
| 781 | Nanophotonics | 3 | 203 | 330 | 208 |
| 781 | Microprocessors | 18 | 203 | 120 | 199 |
| 783 | biofuels | 1 | 202 | 474 | 282 |
| 783 | Food Security | 5 | 202 | 80 | 87 |
| 783 | Protozoa | 5 | 202 | 278 | 228 |
| 786 | Comparative Law | 7 | 201 | 122 | 8 |
| 787 | wildlife diseases | 4 | 200 | 114 | 22 |
| 788 | Applied Ethics | 8 | 199 | 40 | 17 |
| 789 | psychophysics | 12 | 198 | 123 | 154 |
| 789 | Women's health | 11 | 198 | 499 | 600 |
| 789 | Voting | 11 | 198 | 84 | 124 |
| 792 | Geobiology | 10 | 197 | 174 | 258 |
| 793 | Macroeconomics | 5 | 196 | 264 | 148 |
| 793 | Energy Conversion | 5 | 196 | 908 | 1046 |
| 793 | gastrointestinal tract | 4 | 196 | 246 | 301 |
| 796 | Cultural Studies | 10 | 195 | 26 | 29 |
| 796 | infrared radiation | 12 | 195 | 197 | 189 |
| 796 | Religion and Culture | 11 | 195 | 57 | 60 |
| 796 | Biomass | 6 | 195 | 397 | 531 |
| 800 | Architecture | 9 | 194 | 239 | 175 |
| 800 | Digital humanities | 7 | 194 | 33 | 24 |
| 802 | Control Theory | 15 | 193 | 786 | 948 |
| 803 | Adolescent Medicine | 1 | 192 | 829 | 521 |
| 803 | Emotion | 3 | 192 | 211 | 185 |
| 805 | air quality management | 5 | 191 | 328 | 287 |
| 806 | Computational Linguistics | 27 | 190 | 27 | 119 |
| 807 | Phonetics | 10 | 187 | 134 | 200 |
| 807 | Digital Media | 15 | 187 | 28 | 97 |
| 807 | complementary therapies | 3 | 187 | 1637 | 988 |
| 810 | Health risk communication | 5 | 186 | 33 | 31 |
| 810 | risk factors | 5 | 186 | 468 | 412 |
| 810 | drug therapy | 7 | 186 | 1081 | 1100 |
| 810 | Health Risk Assessment | 5 | 186 | 263 | 164 |
| 810 | Leisure | 4 | 186 | 275 | 206 |
| 815 | counseling | 15 | 185 | 523 | 702 |
| 815 | Auditing | 4 | 185 | 317 | 264 |
| 817 | Language and Culture | 11 | 183 | 18 | 26 |
| 817 | mathematical analysis | 37 | 183 | 760 | 1226 |
| 817 | recreation | 3 | 183 | 686 | 307 |
| 820 | Multilingualism | 10 | 181 | 79 | 136 |
| 820 | Industrial Policy | 8 | 181 | 255 | 312 |
| 820 | election law | 8 | 181 | 126 | 136 |
| 820 | Genetic regulation | 3 | 181 | 949 | 757 |
| 824 | Crime prevention | 11 | 180 | 87 | 98 |
| 824 | Family | 12 | 180 | 414 | 538 |
| 824 | economic conditions | 31 | 180 | 70 | 346 |
| 827 | Critical Legal Studies | 18 | 178 | 7 | 25 |
| 827 | Smoking | 6 | 178 | 463 | 517 |
| 827 | Financial Institutions | 5 | 178 | 254 | 193 |
| 830 | Obstetrics | 10 | 177 | 1089 | 1216 |
| 830 | Biopharmaceutics | 15 | 177 | 382 | 781 |
| 830 | Optical Communications | 5 | 177 | 567 | 361 |
| 830 | Family Law | 4 | 177 | 20 | 3 |
| 830 | Combinatorial analysis | 23 | 177 | 298 | 394 |
| 835 | Ecophysiology | 1 | 176 | 461 | 83 |
| 835 | nuclear magnetic resonance | 10 | 176 | 535 | 550 |
| 835 | international cooperation | 20 | 176 | 120 | 378 |
| 838 | Population | 9 | 175 | 438 | 584 |
| 839 | speech therapy | 11 | 173 | 175 | 214 |
| 840 | Environmental Ethics | 19 | 171 | 3 | 37 |
| 840 | Sedimentary rocks | 4 | 171 | 523 | 430 |
| 842 | Chemical Ecology | 6 | 170 | 342 | 415 |
| 842 | Geodesy | 8 | 170 | 332 | 396 |
| 842 | Alternative Medicine | 2 | 170 | 1767 | 1010 |
| 842 | pheromones | 6 | 170 | 303 | 392 |
| 842 | Urban Areas | 4 | 170 | 175 | 81 |
| 847 | Radioisotopes | 16 | 169 | 355 | 472 |
| 847 | Marine resources | 11 | 169 | 250 | 417 |
| 849 | hazard mitigation | 6 | 168 | 562 | 591 |
| 849 | Sales management | 1 | 168 | 417 | 304 |
| 849 | selling | 1 | 168 | 417 | 304 |
| 852 | Plasma devices | 4 | 167 | 240 | 200 |
| 853 | Criminal Law | 7 | 166 | 153 | 132 |
| 853 | community participation | 4 | 166 | 75 | 52 |
| 853 | Faculty | 4 | 166 | 75 | 52 |
| 853 | Blood vessels | 4 | 166 | 306 | 243 |
| 857 | genre | 13 | 165 | 14 | 37 |
| 857 | cloning | 2 | 165 | 624 | 555 |
| 859 | Industrial Microbiology | 3 | 164 | 1815 | 1540 |
| 859 | Coastal zone management | 8 | 164 | 329 | 434 |
| 859 | multimedia | 10 | 164 | 215 | 402 |
| 859 | Interactive multimedia | 11 | 164 | 222 | 424 |
| 859 | death | 9 | 164 | 89 | 108 |
| 864 | Sovereignty | 6 | 163 | 45 | 66 |
| 864 | Communication Disorders | 9 | 163 | 118 | 150 |
| 866 | Physical organic chemistry | 15 | 161 | 607 | 932 |
| 867 | Vaccines | 4 | 159 | 1213 | 1019 |
| 868 | Pediatric Neurology | 3 | 158 | 709 | 791 |
| 869 | Software Maintenance | 3 | 157 | 166 | 55 |
| 869 | bioclimatology | 5 | 157 | 680 | 615 |
| 871 | Energy Consumption | 3 | 156 | 354 | 366 |
| 871 | big data | 3 | 156 | 629 | 365 |
| 871 | Cement | 2 | 156 | 683 | 609 |
| 874 | Ecological Engineering | 4 | 155 | 533 | 589 |
| 874 | health workforce | 2 | 155 | 218 | 158 |
| 876 | Raman spectroscopy | 14 | 154 | 241 | 524 |
| 876 | Criminal investigation | 7 | 154 | 81 | 68 |
| 876 | motor skills | 5 | 154 | 132 | 134 |
| 879 | Liquid Crystals | 5 | 153 | 714 | 327 |
| 879 | Scheduling | 6 | 153 | 59 | 77 |
| 879 | Knowledge management | 4 | 153 | 279 | 88 |
| 879 | Production Scheduling | 6 | 153 | 59 | 77 |
| 879 | construction | 5 | 153 | 124 | 148 |
| 884 | Organizational learning | 5 | 152 | 207 | 159 |
| 884 | Environmental Geochemistry | 8 | 152 | 183 | 279 |
| 884 | Mortgages | 2 | 152 | 254 | 126 |
| 887 | Pharmacy | 4 | 151 | 1612 | 1409 |
| 887 | Electrochemical Analysis | 9 | 151 | 938 | 1129 |
| 887 | Membranes | 10 | 151 | 934 | 1364 |
| 887 | Liver diseases | 1 | 151 | 1364 | 992 |
| 891 | Emergency Nursing | 2 | 150 | 182 | 56 |
| 891 | Biodegradation | 9 | 150 | 284 | 604 |
| 891 | Portfolio Management | 9 | 150 | 106 | 101 |
| 894 | econometric models | 9 | 148 | 232 | 457 |
| 895 | Disability Law | 6 | 147 | 85 | 79 |
| 895 | Organometallic compounds | 6 | 147 | 947 | 890 |
| 895 | Semantic web | 4 | 147 | 68 | 70 |
| 898 | Hypertension | 1 | 145 | 1517 | 1087 |
| 898 | Hemodynamics | 1 | 145 | 762 | 581 |
| 898 | Patient education | 9 | 145 | 272 | 446 |
| 898 | Cognitive Radio Networks | 4 | 145 | 162 | 137 |
| 902 | Power Electronics | 7 | 144 | 692 | 866 |
| 903 | Computational Fluid Dynamics | 9 | 143 | 299 | 433 |
| 903 | International Education | 9 | 143 | 63 | 130 |
| 903 | reasoning | 1 | 143 | 806 | 229 |
| 906 | Wireless Communication | 5 | 142 | 302 | 165 |
| 906 | Continental shelf | 3 | 142 | 356 | 298 |
| 906 | rivers | 5 | 142 | 183 | 196 |
| 909 | weather | 3 | 141 | 533 | 411 |
| 910 | Superconductors | 13 | 140 | 404 | 472 |
| 910 | Lightweight concrete | 5 | 140 | 300 | 561 |
| 910 | Approximation Theory | 12 | 140 | 177 | 207 |
| 913 | Literacy | 14 | 138 | 75 | 156 |
| 914 | Music Therapy | 4 | 137 | 165 | 88 |
| 914 | Art Therapy | 4 | 137 | 148 | 76 |
| 914 | Photogrammetry | 6 | 137 | 527 | 185 |
| 914 | ethnic groups | 6 | 137 | 199 | 210 |
| 914 | viruses | 4 | 137 | 995 | 1075 |
| 914 | Climate | 2 | 137 | 706 | 444 |
| 920 | Sensor Networks | 4 | 136 | 194 | 125 |
| 920 | Moon | 5 | 136 | 93 | 55 |
| 920 | England | 24 | 136 | 24 | 20 |
| 923 | Nuclear family | 8 | 135 | 69 | 56 |
| 923 | public assistance | 8 | 135 | 31 | 15 |
| 925 | Geomagnetism | 9 | 132 | 339 | 456 |
| 925 | Virtual reality | 7 | 132 | 198 | 283 |
| 925 | Political Ecology | 7 | 132 | 16 | 18 |
| 925 | Cardiovascular diseases | 3 | 132 | 1259 | 956 |
| 925 | older people | 14 | 132 | 639 | 797 |
| 930 | Invertebrates | 6 | 131 | 367 | 384 |
| 930 | mortality | 6 | 131 | 16 | 35 |
| 930 | NMR | 13 | 131 | 167 | 281 |
| 930 | magnetic resonance | 13 | 131 | 172 | 294 |
| 934 | Structural design | 6 | 130 | 556 | 594 |
| 935 | Social Stratification | 1 | 129 | 174 | 58 |
| 935 | Social mobility | 1 | 129 | 174 | 58 |
| 935 | social status | 1 | 129 | 174 | 58 |
| 935 | Occupational mobility | 1 | 129 | 174 | 58 |
| 939 | Industrial Organization | 6 | 128 | 202 | 233 |
| 939 | Adhesion | 4 | 128 | 590 | 422 |
| 939 | Investment analysis | 7 | 128 | 537 | 651 |
| 939 | adhesives | 4 | 128 | 628 | 426 |
| 939 | data protection | 9 | 128 | 192 | 288 |
| 944 | Geometry | 18 | 127 | 447 | 516 |
| 944 | Latin America | 24 | 127 | 342 | 482 |
| 944 | Youth | 4 | 127 | 561 | 574 |
| 944 | Suicide | 3 | 127 | 514 | 387 |
| 948 | Feminist criticism | 9 | 125 | 15 | 50 |
| 949 | Measurement | 4 | 124 | 1182 | 997 |
| 950 | Ergonomics | 10 | 123 | 460 | 621 |
| 950 | Technology Assessment | 5 | 123 | 210 | 445 |
| 950 | Diplomatic relations | 86 | 123 | 34 | 221 |
| 953 | Speech-Language Pathology | 3 | 121 | 267 | 184 |
| 953 | Music | 11 | 121 | 382 | 448 |
| 953 | Combustion | 9 | 121 | 698 | 964 |
| 953 | automatic speech recognition | 3 | 121 | 128 | 103 |
| 953 | drug abuse | 6 | 121 | 386 | 424 |
| 953 | DNA | 1 | 121 | 967 | 409 |
| 959 | Clinical Chemistry | 7 | 119 | 1538 | 1929 |
| 959 | Anxiety Disorders | 4 | 119 | 386 | 565 |
| 959 | Anxiety | 4 | 119 | 389 | 569 |
| 962 | school-to-work transition | 6 | 118 | 30 | 47 |
| 962 | research and development | 9 | 118 | 92 | 331 |
| 962 | Birth control | 3 | 118 | 410 | 350 |
| 965 | Molecular recognition | 4 | 117 | 128 | 135 |
| 965 | Capital market | 8 | 117 | 178 | 373 |
| 967 | Mechanics | 6 | 116 | 935 | 829 |
| 968 | Dermatology | 2 | 115 | 1489 | 1054 |
| 969 | land degradation | 6 | 114 | 263 | 449 |
| 969 | degradation | 6 | 114 | 263 | 449 |
| 971 | Visual Arts | 8 | 113 | 22 | 37 |
| 971 | Psychiatric Nursing | 8 | 113 | 352 | 450 |
| 971 | Interfaces | 17 | 113 | 31 | 204 |
| 971 | Southeast Asia | 5 | 113 | 230 | 147 |
| 971 | Aggression | 5 | 113 | 342 | 479 |
| 976 | poverty | 5 | 112 | 226 | 294 |
| 976 | Integrated Circuits | 2 | 112 | 973 | 306 |
| 976 | Writing | 6 | 112 | 152 | 242 |
| 979 | breastfeeding | 5 | 111 | 316 | 326 |
| 979 | particles | 3 | 111 | 1026 | 796 |
| 981 | Early Childhood Education | 9 | 110 | 299 | 408 |
| 981 | International Law | 15 | 110 | 114 | 80 |
| 983 | Plant tissue culture | 3 | 109 | 688 | 617 |
| 983 | Ultrasonics | 6 | 109 | 820 | 1225 |
| 985 | Romanticism | 14 | 108 | 16 | 5 |
| 986 | clay | 1 | 107 | 1271 | 874 |
| 986 | clay minerals | 1 | 107 | 492 | 276 |
| 986 | supercritical fluids | 4 | 107 | 329 | 405 |
| 986 | Scotland | 14 | 107 | 29 | 49 |
| 990 | particle accelerators | 9 | 106 | 47 | 85 |
| 990 | particle beams | 9 | 106 | 46 | 84 |
| 990 | cultural pluralism | 6 | 106 | 230 | 257 |
| 990 | Allergy | 2 | 106 | 974 | 990 |
| 994 | Interpersonal Communication | 6 | 105 | 19 | 36 |
| 994 | Multicultural Education | 6 | 105 | 226 | 227 |
| 994 | biopolymers | 5 | 105 | 863 | 995 |
| 994 | Peasants | 5 | 105 | 50 | 93 |
| 998 | epidemiologic methods | 6 | 104 | 65 | 82 |
| 998 | values | 33 | 104 | 3 | 37 |
| 1000 | Marine Ecology | 8 | 103 | 455 | 588 |