| 1 | Qualitative Research | 48 | 175.8K | 24 | 1 |
| 2 | Biology | 1,320 | 127.7K | 224 | 207 |
| 3 | Science | 1,518 | 101.6K | 196 | 250 |
| 4 | Physics | 827 | 78.3K | 487 | 365 |
| 5 | Medicine | 1,499 | 75.7K | 198 | 212 |
| 6 | Molecular Biology | 872 | 74.2K | 283 | 191 |
| 7 | Ecology | 883 | 69.2K | 135 | 120 |
| 8 | Biochemistry | 1,392 | 66.1K | 271 | 230 |
| 9 | Chemistry | 985 | 63.7K | 428 | 340 |
| 10 | Neurology | 801 | 56.7K | 193 | 172 |
| 11 | Research | 1,070 | 40.4K | 201 | 203 |
| 12 | Computational Biology | 168 | 40.1K | 122 | 21 |
| 13 | Psychology | 814 | 39.5K | 87 | 89 |
| 14 | United States | 378 | 36.4K | 255 | 85 |
| 15 | biological evolution | 177 | 34.0K | 115 | 38 |
| 16 | Natural history | 194 | 33.5K | 252 | 323 |
| 17 | Public Health | 798 | 31.6K | 97 | 120 |
| 18 | Endocrinology | 382 | 30.1K | 134 | 112 |
| 19 | Environment | 466 | 29.3K | 132 | 183 |
| 20 | Molecular evolution | 72 | 28.1K | 121 | 15 |
| 21 | Education | 542 | 25.0K | 62 | 31 |
| 22 | Physiology | 618 | 24.3K | 101 | 122 |
| 23 | Nuclear Physics | 493 | 24.2K | 399 | 327 |
| 24 | Microbiology | 373 | 24.1K | 418 | 358 |
| 25 | Bioinformatics | 92 | 23.5K | 180 | 30 |
| 26 | genome | 46 | 23.1K | 233 | 35 |
| 27 | Metabolism | 311 | 23.0K | 126 | 108 |
| 28 | Genetics | 244 | 22.8K | 231 | 181 |
| 29 | Human genetics | 79 | 22.4K | 311 | 219 |
| 30 | Australia | 988 | 22.1K | 23 | 19 |
| 31 | Nutrition | 459 | 20.9K | 75 | 95 |
| 32 | Materials | 404 | 20.7K | 427 | 345 |
| 33 | Psychiatry | 597 | 20.5K | 116 | 188 |
| 34 | Botany | 475 | 20.3K | 139 | 180 |
| 35 | Biophysics | 431 | 20.1K | 327 | 236 |
| 36 | Brain | 321 | 19.3K | 110 | 91 |
| 37 | Pharmaceutical Chemistry | 401 | 18.5K | 88 | 85 |
| 38 | Neurophysiology | 264 | 18.4K | 183 | 155 |
| 39 | Pharmacology | 432 | 17.4K | 296 | 233 |
| 40 | Behavior | 357 | 16.7K | 103 | 128 |
| 41 | management | 243 | 16.0K | 135 | 168 |
| 42 | Epidemiology | 405 | 15.9K | 94 | 121 |
| 43 | transport vesicles | 6 | 15.5K | 97 | 42 |
| 44 | Cytology | 290 | 15.4K | 312 | 363 |
| 45 | Biomedical Engineering | 412 | 15.3K | 139 | 142 |
| 46 | Pollution | 279 | 15.3K | 321 | 344 |
| 47 | Biotechnology | 283 | 15.3K | 352 | 347 |
| 48 | Astrophysics | 189 | 14.9K | 474 | 469 |
| 49 | Pediatrics | 212 | 14.8K | 133 | 98 |
| 50 | Cell Biology | 209 | 14.8K | 348 | 364 |
| 51 | Geology | 494 | 14.4K | 83 | 146 |
| 52 | Diet | 235 | 14.2K | 54 | 58 |
| 53 | Surgery | 126 | 14.1K | 136 | 162 |
| 54 | Clinical Chemistry | 281 | 14.0K | 75 | 52 |
| 55 | Metabolic diseases | 196 | 13.9K | 128 | 142 |
| 56 | Composite Materials | 228 | 13.9K | 127 | 91 |
| 57 | Spectrum analysis | 185 | 13.6K | 452 | 400 |
| 58 | Economics | 413 | 13.1K | 156 | 156 |
| 59 | Neurochemistry | 182 | 13.1K | 159 | 83 |
| 60 | Optics | 418 | 12.8K | 227 | 158 |
| 61 | natural products | 88 | 12.7K | 96 | 5 |
| 62 | Power Electronics | 172 | 12.4K | 43 | 30 |
| 63 | Obesity | 232 | 12.2K | 61 | 58 |
| 64 | Neurobiology | 166 | 12.0K | 99 | 96 |
| 65 | personality | 165 | 11.7K | 65 | 69 |
| 66 | Statistical physics | 278 | 11.6K | 296 | 208 |
| 67 | Geophysics | 559 | 11.6K | 149 | 281 |
| 68 | Food | 237 | 11.5K | 75 | 59 |
| 69 | Environmental Health | 205 | 11.4K | 380 | 341 |
| 70 | biological factors | 55 | 11.3K | 205 | 4 |
| 71 | Psychophysiology | 222 | 11.3K | 233 | 218 |
| 72 | Geography | 477 | 10.9K | 18 | 54 |
| 73 | marketing | 177 | 10.8K | 38 | 83 |
| 74 | Reproduction | 289 | 10.7K | 56 | 54 |
| 75 | Robotics | 126 | 10.7K | 68 | 22 |
| 75 | Social Psychology | 249 | 10.7K | 92 | 136 |
| 77 | environmental pollution | 200 | 10.6K | 270 | 225 |
| 78 | Evolution | 162 | 10.6K | 115 | 124 |
| 79 | Medical genetics | 95 | 10.5K | 365 | 229 |
| 80 | Microbial Ecology | 120 | 10.5K | 174 | 146 |
| 81 | Mathematics | 627 | 10.4K | 252 | 201 |
| 82 | Mental Disorders | 347 | 10.4K | 91 | 183 |
| 83 | Animal Behavior | 167 | 9.8K | 155 | 128 |
| 84 | Chemical Engineering | 250 | 9.8K | 392 | 406 |
| 85 | arthritis | 159 | 9.8K | 56 | 58 |
| 86 | Social Sciences | 275 | 9.7K | 101 | 74 |
| 87 | Astronomy | 248 | 9.7K | 372 | 432 |
| 88 | Business | 102 | 9.7K | 138 | 106 |
| 89 | Catalysis | 152 | 9.7K | 505 | 382 |
| 90 | Oncology | 51 | 9.6K | 349 | 190 |
| 91 | food technology | 190 | 9.6K | 100 | 57 |
| 92 | Marine Biology | 227 | 9.5K | 115 | 103 |
| 93 | Statistics | 207 | 9.5K | 141 | 115 |
| 94 | Sociology | 221 | 9.4K | 157 | 143 |
| 95 | Cancer | 134 | 9.1K | 357 | 296 |
| 96 | educational accountability | 6 | 9.0K | 57 | 1 |
| 97 | Nanotechnology | 198 | 9.0K | 534 | 556 |
| 98 | Diabetes | 145 | 8.9K | 146 | 152 |
| 99 | Bioengineering | 156 | 8.9K | 363 | 361 |
| 100 | behavioral medicine | 86 | 8.6K | 90 | 55 |
| 101 | Geriatrics | 198 | 8.6K | 185 | 143 |
| 102 | Water pollution | 159 | 8.4K | 141 | 134 |
| 103 | Engineering | 240 | 8.3K | 179 | 100 |
| 104 | Hydraulic Engineering | 151 | 8.2K | 36 | 15 |
| 105 | Diabetes mellitus | 127 | 8.2K | 148 | 158 |
| 106 | Ethology | 112 | 8.0K | 153 | 120 |
| 107 | Biochemical Engineering | 136 | 7.9K | 300 | 341 |
| 108 | Econometrics | 83 | 7.9K | 112 | 67 |
| 109 | Structural Engineering | 248 | 7.9K | 49 | 54 |
| 110 | Psychosomatic Medicine | 70 | 7.9K | 51 | 22 |
| 111 | human behavior | 117 | 7.9K | 214 | 213 |
| 112 | Manufacturing Processes | 162 | 7.8K | 120 | 59 |
| 113 | Plant cells | 40 | 7.8K | 275 | 170 |
| 114 | Obstetrics | 191 | 7.7K | 140 | 122 |
| 115 | Bioorganic chemistry | 255 | 7.6K | 49 | 111 |
| 116 | Virology | 142 | 7.6K | 290 | 394 |
| 117 | Nervous system | 152 | 7.5K | 172 | 189 |
| 118 | Health | 133 | 7.5K | 123 | 75 |
| 119 | Sports Medicine | 151 | 7.3K | 168 | 111 |
| 120 | Immunology | 147 | 7.3K | 365 | 380 |
| 121 | Asia | 341 | 7.3K | 27 | 25 |
| 122 | Human Geography | 149 | 7.2K | 44 | 35 |
| 123 | Polymers | 268 | 7.1K | 390 | 426 |
| 124 | Renewable Energy Sources | 85 | 7.1K | 237 | 230 |
| 125 | Plants | 62 | 7.1K | 298 | 166 |
| 126 | Colloids | 208 | 7.0K | 306 | 354 |
| 127 | Organic Chemistry | 245 | 6.9K | 116 | 178 |
| 128 | Water | 132 | 6.8K | 186 | 235 |
| 129 | Operations Research | 147 | 6.7K | 114 | 87 |
| 130 | plant molecular biology | 55 | 6.7K | 246 | 177 |
| 131 | Toxicology | 114 | 6.5K | 587 | 395 |
| 132 | Meteorology | 125 | 6.5K | 216 | 219 |
| 133 | fuel cells | 27 | 6.4K | 327 | 97 |
| 134 | Molecular ecology | 102 | 6.2K | 55 | 87 |
| 135 | Molecular Genetics | 109 | 6.1K | 137 | 146 |
| 136 | Earthquake Engineering | 201 | 6.0K | 56 | 74 |
| 137 | Biocompatible Materials | 138 | 5.8K | 449 | 547 |
| 138 | Teaching | 230 | 5.8K | 25 | 52 |
| 139 | Artificial Intelligence | 188 | 5.7K | 198 | 285 |
| 140 | Environmental Policy | 136 | 5.7K | 197 | 277 |
| 141 | polymerization | 196 | 5.7K | 399 | 398 |
| 142 | psychotherapy | 52 | 5.7K | 223 | 110 |
| 143 | Aging | 165 | 5.7K | 195 | 198 |
| 144 | Materials Science | 117 | 5.7K | 674 | 577 |
| 145 | medical education | 214 | 5.7K | 92 | 94 |
| 146 | Environmental Engineering | 137 | 5.6K | 297 | 353 |
| 147 | Geomorphology | 134 | 5.6K | 31 | 47 |
| 148 | Health Policy | 199 | 5.6K | 97 | 100 |
| 149 | mass transfer | 97 | 5.5K | 126 | 81 |
| 150 | Automation | 95 | 5.5K | 262 | 229 |
| 151 | Wildlife conservation | 91 | 5.4K | 58 | 58 |
| 152 | Zoology | 268 | 5.4K | 55 | 119 |
| 153 | energy conservation | 53 | 5.3K | 278 | 171 |
| 154 | Ophthalmology | 157 | 5.3K | 114 | 135 |
| 155 | viruses | 26 | 5.3K | 392 | 162 |
| 156 | drug therapy | 162 | 5.2K | 151 | 169 |
| 157 | Public opinion | 28 | 5.2K | 43 | 4 |
| 158 | Respiration | 148 | 5.2K | 73 | 106 |
| 159 | Hydrogeology | 137 | 5.1K | 3 | 2 |
| 160 | Population Genetics | 87 | 5.1K | 92 | 111 |
| 161 | nucleic acids | 39 | 5.0K | 410 | 278 |
| 162 | finance | 190 | 5.0K | 67 | 154 |
| 163 | Biomechanics | 114 | 5.0K | 70 | 85 |
| 164 | Genomics | 131 | 5.0K | 250 | 262 |
| 165 | Medical Anthropology | 123 | 4.9K | 63 | 107 |
| 166 | Earth Sciences | 119 | 4.9K | 333 | 315 |
| 167 | Environmental monitoring | 89 | 4.9K | 438 | 364 |
| 168 | Biometrics | 73 | 4.9K | 104 | 60 |
| 169 | Positive Psychology | 1 | 4.8K | 335 | 1 |
| 170 | Geothermal Energy | 127 | 4.8K | 1 | 1 |
| 171 | alcoholism | 130 | 4.7K | 100 | 100 |
| 172 | Economic History | 315 | 4.7K | 57 | 147 |
| 173 | environmental protection | 135 | 4.7K | 201 | 270 |
| 174 | Information Technology | 79 | 4.7K | 155 | 110 |
| 175 | Adolescent | 172 | 4.7K | 104 | 117 |
| 176 | Rheumatology | 99 | 4.6K | 66 | 94 |
| 177 | Anatomy | 88 | 4.6K | 218 | 192 |
| 178 | Bacteriology | 69 | 4.6K | 278 | 239 |
| 179 | drug addiction | 117 | 4.6K | 73 | 77 |
| 180 | Europe | 182 | 4.5K | 181 | 182 |
| 181 | Electronics | 180 | 4.5K | 275 | 301 |
| 182 | Environmental Microbiology | 65 | 4.5K | 97 | 101 |
| 183 | Hydrology | 116 | 4.5K | 209 | 202 |
| 184 | Building Materials | 92 | 4.5K | 162 | 167 |
| 185 | Cardiovascular system | 60 | 4.5K | 279 | 310 |
| 186 | Clinical Pharmacology | 141 | 4.5K | 40 | 40 |
| 187 | counseling | 39 | 4.4K | 273 | 59 |
| 188 | Sports | 136 | 4.4K | 137 | 142 |
| 189 | Analytical Chemistry | 120 | 4.3K | 650 | 594 |
| 190 | Child Development | 166 | 4.3K | 124 | 216 |
| 191 | Oceanography | 116 | 4.3K | 182 | 198 |
| 192 | Educational Psychology | 107 | 4.3K | 120 | 115 |
| 193 | China | 90 | 4.3K | 283 | 124 |
| 194 | drugs | 137 | 4.2K | 93 | 107 |
| 195 | Neuropsychology | 119 | 4.2K | 214 | 227 |
| 195 | Biodiversity | 78 | 4.2K | 211 | 208 |
| 197 | Public Policy | 152 | 4.2K | 54 | 79 |
| 198 | Primary health care | 103 | 4.1K | 123 | 72 |
| 199 | Transportation | 145 | 4.1K | 100 | 135 |
| 200 | Telecommunication | 73 | 4.1K | 379 | 281 |
| 201 | Physical fitness | 57 | 4.1K | 70 | 40 |
| 202 | Developmental Biology | 59 | 4.1K | 339 | 308 |
| 203 | Chromosomes | 76 | 4.1K | 41 | 27 |
| 204 | Embryology | 55 | 4.1K | 274 | 215 |
| 205 | Parenteral nutrition | 50 | 4.1K | 105 | 86 |
| 206 | Child | 192 | 4.0K | 101 | 165 |
| 207 | Linguistics | 98 | 4.0K | 105 | 76 |
| 208 | Technology | 121 | 4.0K | 389 | 345 |
| 209 | Agricultural Chemistry | 69 | 3.9K | 301 | 193 |
| 210 | Ocean Engineering | 138 | 3.9K | 110 | 130 |
| 211 | Mineralogy | 108 | 3.9K | 112 | 135 |
| 212 | Climatology | 84 | 3.9K | 208 | 211 |
| 213 | Drug delivery systems | 83 | 3.9K | 73 | 110 |
| 214 | Hormones | 57 | 3.9K | 156 | 83 |
| 215 | Plant physiology | 61 | 3.8K | 348 | 299 |
| 216 | rehabilitation | 123 | 3.8K | 140 | 183 |
| 217 | Petrology | 84 | 3.8K | 105 | 124 |
| 218 | Environmental Management | 102 | 3.8K | 207 | 321 |
| 219 | Food additives | 86 | 3.8K | 39 | 65 |
| 220 | mutation | 67 | 3.8K | 14 | 16 |
| 221 | plant communities | 40 | 3.7K | 187 | 115 |
| 222 | Heat Exchangers | 60 | 3.7K | 101 | 54 |
| 223 | Molecular structure | 48 | 3.7K | 409 | 187 |
| 223 | Metals | 73 | 3.7K | 291 | 229 |
| 225 | Cognition | 108 | 3.7K | 182 | 231 |
| 226 | Nanostructured Materials | 65 | 3.7K | 669 | 482 |
| 227 | Palliative Care | 98 | 3.6K | 29 | 18 |
| 228 | Social work | 133 | 3.6K | 92 | 63 |
| 229 | Geochemistry | 101 | 3.6K | 288 | 330 |
| 230 | Surface Chemistry | 139 | 3.6K | 453 | 573 |
| 231 | health services accessibility | 77 | 3.6K | 47 | 25 |
| 232 | preventive medicine | 37 | 3.6K | 220 | 115 |
| 233 | Aquaculture | 126 | 3.5K | 89 | 105 |
| 234 | Mental Health Services | 196 | 3.5K | 35 | 50 |
| 235 | Fisheries | 124 | 3.5K | 91 | 111 |
| 236 | hydrocolloids | 67 | 3.5K | 39 | 62 |
| 237 | Hypertension | 76 | 3.5K | 226 | 343 |
| 238 | Biodiversity conservation | 70 | 3.4K | 200 | 362 |
| 239 | Software Engineering | 81 | 3.4K | 50 | 58 |
| 240 | Image Processing | 62 | 3.3K | 333 | 263 |
| 241 | Numerical Analysis | 127 | 3.3K | 102 | 94 |
| 242 | Metallurgy | 70 | 3.3K | 341 | 263 |
| 243 | Energy Policy | 76 | 3.3K | 295 | 357 |
| 244 | Archaeology | 123 | 3.3K | 87 | 92 |
| 245 | health services | 133 | 3.3K | 48 | 57 |
| 246 | Neurons | 11 | 3.3K | 276 | 214 |
| 247 | Photonics | 38 | 3.2K | 494 | 294 |
| 248 | Philosophy | 174 | 3.2K | 98 | 58 |
| 249 | Porous materials | 100 | 3.2K | 5 | 5 |
| 250 | Electrochemistry | 145 | 3.2K | 549 | 568 |
| 251 | Cell differentiation | 43 | 3.2K | 338 | 325 |
| 252 | Marine Pollution | 36 | 3.1K | 191 | 61 |
| 253 | Diagnostic Imaging | 57 | 3.1K | 273 | 167 |
| 254 | Pediatric Neurology | 26 | 3.1K | 240 | 177 |
| 255 | United Kingdom | 107 | 3.1K | 99 | 190 |
| 256 | Mental Health | 104 | 3.1K | 96 | 86 |
| 257 | Production Engineering | 75 | 3.1K | 215 | 95 |
| 258 | Structural dynamics | 80 | 3.0K | 79 | 110 |
| 259 | Organometallic compounds | 48 | 3.0K | 186 | 74 |
| 260 | Gerontology | 117 | 3.0K | 171 | 151 |
| 261 | Biomass Energy | 46 | 3.0K | 443 | 363 |
| 262 | Immunity | 53 | 2.9K | 330 | 449 |
| 263 | Molecular Microbiology | 26 | 2.9K | 240 | 162 |
| 263 | Mental illness | 84 | 2.9K | 212 | 326 |
| 265 | Plant Ecology | 54 | 2.9K | 287 | 266 |
| 266 | Pharmacy | 104 | 2.9K | 180 | 188 |
| 267 | Learning | 71 | 2.8K | 149 | 180 |
| 268 | Bones | 38 | 2.8K | 111 | 79 |
| 269 | Medical Laboratory Science | 65 | 2.8K | 235 | 275 |
| 270 | Computer Vision | 36 | 2.8K | 189 | 160 |
| 271 | Clinical Psychology | 71 | 2.8K | 169 | 211 |
| 272 | Combustion | 30 | 2.8K | 303 | 129 |
| 273 | Health Education | 133 | 2.8K | 126 | 173 |
| 274 | Regional Planning | 62 | 2.7K | 174 | 118 |
| 275 | Quantum Optics | 38 | 2.7K | 121 | 27 |
| 276 | Enteral nutrition | 32 | 2.7K | 112 | 94 |
| 277 | Health Services Research | 101 | 2.7K | 123 | 165 |
| 278 | Hematology | 74 | 2.7K | 473 | 474 |
| 279 | Minority Health | 1 | 2.7K | 211 | 8 |
| 280 | Social behavior | 66 | 2.7K | 119 | 152 |
| 281 | health planning | 107 | 2.7K | 93 | 99 |
| 282 | Light | 16 | 2.7K | 336 | 205 |
| 283 | fertility | 61 | 2.7K | 118 | 130 |
| 283 | Agriculture | 98 | 2.7K | 161 | 215 |
| 285 | Tourism | 39 | 2.7K | 268 | 211 |
| 286 | animals | 174 | 2.7K | 14 | 39 |
| 287 | Smart Materials | 76 | 2.7K | 45 | 40 |
| 288 | Systems Biology | 73 | 2.6K | 108 | 99 |
| 289 | Infertility | 58 | 2.6K | 109 | 126 |
| 290 | older people | 54 | 2.5K | 261 | 100 |
| 291 | Soil Science | 29 | 2.5K | 470 | 222 |
| 292 | Disease | 14 | 2.5K | 57 | 153 |
| 293 | Pancreatic diseases | 50 | 2.5K | 13 | 13 |
| 294 | Audiology | 93 | 2.5K | 51 | 76 |
| 295 | Child psychology | 87 | 2.5K | 191 | 293 |
| 296 | Biosensors | 40 | 2.5K | 184 | 180 |
| 297 | gene mapping | 50 | 2.5K | 285 | 296 |
| 298 | Drug design | 58 | 2.5K | 104 | 95 |
| 298 | diseases | 12 | 2.5K | 82 | 158 |
| 300 | Applied Linguistics | 35 | 2.5K | 55 | 9 |
| 301 | Medical Physics | 88 | 2.5K | 218 | 254 |
| 302 | Sustainable Development | 33 | 2.5K | 306 | 201 |
| 303 | Quantum Gravity | 73 | 2.4K | 586 | 546 |
| 304 | Medical Microbiology | 49 | 2.4K | 419 | 417 |
| 305 | Environmental Psychology | 13 | 2.4K | 81 | 32 |
| 306 | Cybernetics | 45 | 2.4K | 264 | 232 |
| 307 | Mathematical Economics | 12 | 2.4K | 109 | 49 |
| 308 | Microscopy | 48 | 2.4K | 149 | 82 |
| 309 | Quality Control | 40 | 2.4K | 211 | 86 |
| 309 | Bioelectronics | 36 | 2.4K | 157 | 161 |
| 311 | Microorganisms | 26 | 2.4K | 194 | 157 |
| 312 | Physical Geography | 29 | 2.3K | 42 | 7 |
| 313 | Volcanoes | 68 | 2.3K | 16 | 18 |
| 314 | Political Psychology | 23 | 2.3K | 59 | 25 |
| 315 | behavior modification | 48 | 2.3K | 50 | 61 |
| 316 | nanoscience | 43 | 2.3K | 718 | 675 |
| 317 | Climate change | 29 | 2.2K | 240 | 416 |
| 317 | Eutrophication | 29 | 2.2K | 235 | 413 |
| 319 | International Finance | 88 | 2.2K | 85 | 143 |
| 320 | Physical Chemistry | 43 | 2.2K | 521 | 414 |
| 321 | adolescence | 33 | 2.2K | 187 | 119 |
| 322 | Social welfare | 63 | 2.2K | 29 | 11 |
| 323 | Memory | 59 | 2.2K | 296 | 297 |
| 324 | Ceramics | 15 | 2.2K | 568 | 139 |
| 325 | Production Management | 39 | 2.2K | 180 | 236 |
| 325 | Communication | 72 | 2.2K | 259 | 303 |
| 327 | Biogeography | 44 | 2.2K | 130 | 172 |
| 328 | Physical Therapy | 46 | 2.2K | 196 | 169 |
| 329 | Food Microbiology | 44 | 2.1K | 153 | 165 |
| 330 | Orthopedics | 69 | 2.1K | 208 | 181 |
| 331 | Cardiovascular diseases | 51 | 2.1K | 284 | 209 |
| 332 | Forensic Genetics | 77 | 2.1K | 13 | 23 |
| 333 | Cytogenetics | 24 | 2.1K | 365 | 293 |
| 334 | Molecules | 22 | 2.1K | 546 | 189 |
| 335 | Therapeutics | 57 | 2.1K | 263 | 286 |
| 335 | language | 44 | 2.1K | 90 | 82 |
| 337 | city planning | 107 | 2.1K | 86 | 159 |
| 338 | Planets | 77 | 2.1K | 270 | 381 |
| 339 | Genetic therapy | 39 | 2.1K | 165 | 141 |
| 340 | Endocrine glands | 8 | 2.1K | 103 | 22 |
| 341 | Glass | 12 | 2.1K | 472 | 126 |
| 341 | pottery | 12 | 2.1K | 445 | 124 |
| 343 | actuators | 64 | 2.1K | 281 | 337 |
| 343 | transducers | 64 | 2.1K | 281 | 337 |
| 345 | Paleoclimatology | 50 | 2.1K | 159 | 159 |
| 346 | Vaccines | 77 | 2.1K | 171 | 211 |
| 347 | Physical organic chemistry | 102 | 2.1K | 32 | 77 |
| 348 | Entomology | 116 | 2.1K | 187 | 242 |
| 349 | Virulence | 16 | 2.0K | 402 | 286 |
| 350 | ecosystem | 46 | 2.0K | 182 | 228 |
| 351 | feeding behavior | 45 | 2.0K | 72 | 67 |
| 352 | Medical Imaging | 29 | 2.0K | 46 | 31 |
| 352 | Magnetic Resonance Imaging | 29 | 2.0K | 66 | 37 |
| 354 | Pharmacognosy | 47 | 2.0K | 289 | 264 |
| 355 | energy resources | 38 | 2.0K | 205 | 278 |
| 356 | Pathology | 58 | 2.0K | 396 | 418 |
| 357 | Plant diseases | 85 | 2.0K | 216 | 264 |
| 358 | Cognitive neuroscience | 35 | 2.0K | 227 | 257 |
| 359 | Appetite | 42 | 2.0K | 56 | 56 |
| 360 | weather | 15 | 2.0K | 134 | 17 |
| 360 | Perception | 99 | 2.0K | 201 | 315 |
| 362 | Critical Care Medicine | 40 | 2.0K | 294 | 379 |
| 363 | Mechatronics | 41 | 2.0K | 102 | 65 |
| 364 | Youth | 25 | 2.0K | 138 | 70 |
| 365 | Critical Care | 32 | 2.0K | 357 | 377 |
| 366 | sanitation | 38 | 1.9K | 338 | 461 |
| 367 | Nursing | 69 | 1.9K | 196 | 125 |
| 368 | Cognitive Science | 53 | 1.9K | 184 | 268 |
| 369 | Stem cells | 37 | 1.9K | 297 | 265 |
| 370 | Bioinorganic chemistry | 54 | 1.9K | 201 | 151 |
| 371 | Medical innovations | 15 | 1.9K | 306 | 226 |
| 372 | Research methodology | 5 | 1.9K | 50 | 1 |
| 373 | Environmental Geology | 49 | 1.9K | 161 | 144 |
| 374 | Developing countries | 53 | 1.9K | 308 | 293 |
| 375 | biological invasions | 46 | 1.9K | 23 | 26 |
| 376 | Travel | 299 | 1.9K | 2 | 49 |
| 377 | Leadership | 25 | 1.9K | 56 | 75 |
| 378 | food handling | 24 | 1.9K | 146 | 48 |
| 379 | Antarctica | 148 | 1.9K | 15 | 22 |
| 380 | Civil Engineering | 97 | 1.9K | 85 | 75 |
| 381 | Conservation Biology | 48 | 1.9K | 129 | 173 |
| 382 | Feminism | 59 | 1.9K | 11 | 8 |
| 383 | Systems Engineering | 66 | 1.8K | 218 | 240 |
| 384 | Building | 72 | 1.8K | 40 | 39 |
| 385 | Political Science | 107 | 1.8K | 178 | 232 |
| 386 | innovation | 19 | 1.8K | 101 | 140 |
| 387 | Histology | 64 | 1.8K | 250 | 319 |
| 388 | Psychopharmacology | 44 | 1.8K | 293 | 328 |
| 388 | Atomic spectroscopy | 22 | 1.8K | 345 | 75 |
| 388 | Laser Spectroscopy | 22 | 1.8K | 197 | 37 |
| 391 | gene therapy | 37 | 1.8K | 164 | 168 |
| 392 | Substance Abuse | 105 | 1.8K | 111 | 185 |
| 393 | Health promotion | 50 | 1.8K | 153 | 161 |
| 394 | Cerebral cortex | 37 | 1.8K | 181 | 199 |
| 395 | Agricultural Ecology | 33 | 1.8K | 162 | 186 |
| 396 | Vision | 48 | 1.8K | 102 | 122 |
| 396 | computer networks | 47 | 1.8K | 471 | 366 |
| 398 | drug development | 16 | 1.8K | 272 | 210 |
| 399 | Visual Perception | 71 | 1.7K | 216 | 267 |
| 400 | Comparative Physiology | 49 | 1.7K | 82 | 98 |
| 401 | Human-Computer Interaction | 58 | 1.7K | 90 | 134 |
| 402 | Structural design | 42 | 1.7K | 78 | 61 |
| 403 | organization | 36 | 1.7K | 121 | 213 |
| 404 | bioclimatology | 18 | 1.7K | 203 | 37 |
| 405 | Fluid Mechanics | 48 | 1.7K | 255 | 210 |
| 406 | Adolescent Psychology | 25 | 1.7K | 191 | 111 |
| 407 | pain | 51 | 1.7K | 212 | 287 |
| 408 | Nutrition physiology | 39 | 1.7K | 66 | 70 |
| 409 | Cheminformatics | 10 | 1.7K | 70 | 45 |
| 410 | Animal ecology | 53 | 1.7K | 179 | 218 |
| 411 | Chronic diseases | 40 | 1.7K | 110 | 178 |
| 412 | Population | 23 | 1.7K | 184 | 91 |
| 413 | Marine mammals | 37 | 1.7K | 20 | 16 |
| 414 | Atmospheric Physics | 87 | 1.7K | 220 | 361 |
| 415 | Control Theory | 70 | 1.7K | 235 | 255 |
| 416 | Sites | 45 | 1.7K | 51 | 82 |
| 416 | Climate | 14 | 1.7K | 147 | 50 |
| 418 | prostaglandins | 49 | 1.7K | 13 | 15 |
| 418 | Sales management | 6 | 1.7K | 144 | 54 |
| 418 | selling | 6 | 1.7K | 144 | 54 |
| 421 | Biopharmaceutics | 42 | 1.6K | 110 | 117 |
| 422 | vibration | 38 | 1.6K | 180 | 152 |
| 423 | Radio | 28 | 1.6K | 436 | 321 |
| 424 | Green Chemistry | 33 | 1.6K | 434 | 451 |
| 425 | Algae | 63 | 1.6K | 47 | 94 |
| 426 | Sleep | 43 | 1.6K | 293 | 241 |
| 427 | hazard mitigation | 40 | 1.6K | 47 | 51 |
| 428 | Genetic engineering | 34 | 1.6K | 446 | 430 |
| 429 | internet | 36 | 1.6K | 261 | 234 |
| 430 | Environmental Toxicology | 32 | 1.6K | 550 | 478 |
| 431 | curriculum evaluation | 31 | 1.6K | 26 | 7 |
| 432 | Pregnancy | 61 | 1.6K | 46 | 57 |
| 433 | soil microbiology | 31 | 1.6K | 363 | 415 |
| 434 | Wireless Communication Systems | 51 | 1.6K | 470 | 414 |
| 435 | Food preferences | 41 | 1.6K | 25 | 31 |
| 436 | Nanostructures | 16 | 1.6K | 763 | 395 |
| 437 | Optical materials | 31 | 1.6K | 811 | 706 |
| 438 | Medical Oncology | 39 | 1.6K | 344 | 339 |
| 439 | Socioeconomic Factors | 23 | 1.6K | 143 | 54 |
| 440 | Community Psychiatry | 44 | 1.6K | 129 | 141 |
| 441 | Growth | 22 | 1.6K | 367 | 352 |
| 442 | industrial relations | 54 | 1.5K | 93 | 64 |
| 443 | Insects | 38 | 1.5K | 239 | 167 |
| 444 | Entrepreneurship | 14 | 1.5K | 314 | 257 |
| 445 | water supply | 41 | 1.5K | 163 | 201 |
| 446 | Algebra | 146 | 1.5K | 42 | 66 |
| 447 | natural disasters | 45 | 1.5K | 85 | 127 |
| 448 | System analysis | 72 | 1.5K | 263 | 351 |
| 449 | Geotechnical Engineering | 49 | 1.5K | 61 | 75 |
| 450 | Solid State Physics | 52 | 1.5K | 1,105 | 936 |
| 451 | proteins | 60 | 1.5K | 287 | 375 |
| 452 | Neurotransmitters | 13 | 1.5K | 92 | 47 |
| 453 | disaster relief | 30 | 1.5K | 4 | 3 |
| 454 | Allergy | 41 | 1.5K | 214 | 370 |
| 455 | Chromosome mapping | 41 | 1.5K | 303 | 355 |
| 456 | Auditing | 34 | 1.5K | 12 | 22 |
| 457 | Paleontology | 52 | 1.5K | 223 | 198 |
| 458 | Attention | 66 | 1.5K | 238 | 313 |
| 459 | Speech Disorders | 79 | 1.5K | 119 | 175 |
| 460 | Smoking | 44 | 1.5K | 113 | 119 |
| 461 | cell physiology | 23 | 1.5K | 452 | 400 |
| 462 | mathematical analysis | 68 | 1.5K | 459 | 297 |
| 463 | occupational diseases | 15 | 1.5K | 245 | 103 |
| 464 | Pharmaceutical Technology | 56 | 1.5K | 149 | 229 |
| 465 | Adolescent Medicine | 23 | 1.4K | 114 | 146 |
| 465 | Demography | 14 | 1.4K | 212 | 84 |
| 467 | calcification | 40 | 1.4K | 39 | 64 |
| 468 | Mycology | 36 | 1.4K | 328 | 306 |
| 468 | biocatalysis | 4 | 1.4K | 130 | 93 |
| 468 | Homogeneous catalysis | 4 | 1.4K | 130 | 93 |
| 468 | Heterogeneous catalysis | 4 | 1.4K | 130 | 93 |
| 472 | Membranes | 30 | 1.4K | 497 | 484 |
| 473 | Information Science | 46 | 1.4K | 419 | 489 |
| 474 | Coral reef biology | 21 | 1.4K | 63 | 36 |
| 475 | drug evaluation | 38 | 1.4K | 150 | 94 |
| 476 | International Relations | 24 | 1.4K | 294 | 130 |
| 477 | Long-Term Care | 21 | 1.4K | 109 | 84 |
| 477 | Long-term care facilities | 21 | 1.4K | 109 | 84 |
| 479 | Water quality management | 63 | 1.4K | 153 | 199 |
| 480 | risk factors | 27 | 1.4K | 124 | 95 |
| 481 | Educational Technology | 50 | 1.4K | 142 | 179 |
| 482 | Transplantation | 11 | 1.4K | 462 | 269 |
| 483 | Scandinavia | 15 | 1.4K | 169 | 63 |
| 484 | Hearing | 76 | 1.4K | 59 | 94 |
| 485 | Combinatorial analysis | 75 | 1.4K | 73 | 65 |
| 486 | Neonatology | 34 | 1.4K | 49 | 34 |
| 487 | Geriatric Psychiatry | 28 | 1.3K | 175 | 112 |
| 488 | Higher Education | 49 | 1.3K | 26 | 30 |
| 489 | Plant genetic engineering | 14 | 1.3K | 331 | 169 |
| 490 | behavior therapy | 43 | 1.3K | 153 | 171 |
| 491 | Analytical Biochemistry | 31 | 1.3K | 327 | 247 |
| 492 | Paleogeography | 25 | 1.3K | 255 | 193 |
| 493 | Horticulture | 62 | 1.3K | 41 | 40 |
| 494 | Mathematics Education | 72 | 1.3K | 3 | 17 |
| 494 | Sleep Disorders | 35 | 1.3K | 344 | 291 |
| 496 | Chemotherapy | 59 | 1.3K | 163 | 221 |
| 497 | Jurisprudence | 64 | 1.3K | 73 | 82 |
| 498 | Industrial Microbiology | 29 | 1.3K | 442 | 462 |
| 499 | Seaweed | 34 | 1.3K | 76 | 85 |
| 500 | Paleoecology | 24 | 1.3K | 308 | 220 |
| 501 | Plant Biotechnology | 14 | 1.3K | 235 | 93 |
| 502 | Environmental Law | 27 | 1.3K | 222 | 324 |
| 503 | Exercise | 52 | 1.3K | 174 | 217 |
| 503 | Breeding | 31 | 1.3K | 271 | 199 |
| 505 | Birds | 70 | 1.3K | 123 | 151 |
| 506 | Internet of Things | 14 | 1.3K | 454 | 225 |
| 506 | global environmental change | 18 | 1.3K | 212 | 184 |
| 508 | software | 27 | 1.3K | 149 | 111 |
| 509 | Electrical Engineering | 87 | 1.3K | 498 | 463 |
| 509 | Land use | 52 | 1.3K | 68 | 145 |
| 509 | Inflammation | 24 | 1.3K | 237 | 216 |
| 512 | Language Disorders | 82 | 1.2K | 78 | 130 |
| 513 | Developmental Disabilities | 42 | 1.2K | 167 | 223 |
| 514 | Sedimentary rocks | 22 | 1.2K | 105 | 58 |
| 515 | Orthopedic Surgery | 28 | 1.2K | 151 | 91 |
| 515 | Southeast Asia | 54 | 1.2K | 13 | 9 |
| 517 | Mechanical Engineering | 69 | 1.2K | 351 | 337 |
| 518 | Human biology | 21 | 1.2K | 129 | 43 |
| 519 | Ultrasonics | 20 | 1.2K | 335 | 211 |
| 520 | polar regions | 50 | 1.2K | 41 | 51 |
| 521 | Ornithology | 64 | 1.2K | 86 | 110 |
| 522 | Anthropology | 92 | 1.2K | 161 | 230 |
| 523 | Computer Graphics | 38 | 1.2K | 355 | 332 |
| 524 | Mathematical Physics | 62 | 1.2K | 633 | 642 |
| 524 | Research Design | 40 | 1.2K | 181 | 243 |
| 526 | Project Management | 18 | 1.2K | 55 | 65 |
| 527 | Forensic Psychiatry | 85 | 1.2K | 20 | 44 |
| 528 | Pharmacokinetics | 26 | 1.2K | 117 | 110 |
| 529 | Law | 146 | 1.2K | 33 | 81 |
| 530 | Radiography | 23 | 1.2K | 188 | 238 |
| 530 | Sonochemistry | 16 | 1.2K | 120 | 92 |
| 532 | Host-parasite interactions | 11 | 1.2K | 536 | 432 |
| 533 | Raman spectroscopy | 35 | 1.2K | 66 | 65 |
| 534 | lasers | 31 | 1.2K | 586 | 365 |
| 535 | Socialization | 24 | 1.2K | 99 | 95 |
| 536 | Radiobiology | 29 | 1.1K | 320 | 298 |
| 537 | Pharmacogenetics | 28 | 1.1K | 171 | 189 |
| 538 | Transport | 32 | 1.1K | 70 | 85 |
| 539 | Business Ethics | 27 | 1.1K | 153 | 328 |
| 539 | Spine | 24 | 1.1K | 166 | 159 |
| 541 | Graph Theory | 57 | 1.1K | 56 | 41 |
| 542 | Economic Development | 25 | 1.1K | 413 | 404 |
| 543 | role | 22 | 1.1K | 67 | 61 |
| 544 | Second Language Acquisition | 26 | 1.1K | 8 | 25 |
| 545 | Bone diseases | 23 | 1.1K | 62 | 131 |
| 546 | Molecular Pharmacology | 22 | 1.1K | 191 | 179 |
| 547 | Bacterial diseases | 6 | 1.1K | 114 | 11 |
| 548 | Drying | 30 | 1.1K | 36 | 32 |
| 548 | Genetic regulation | 31 | 1.1K | 191 | 326 |
| 550 | Psycholinguistics | 30 | 1.1K | 233 | 248 |
| 551 | plasma spraying | 33 | 1.1K | 19 | 22 |
| 552 | emergency management | 36 | 1.1K | 36 | 55 |
| 553 | Housing | 38 | 1.1K | 36 | 56 |
| 554 | biomedicine | 9 | 1.1K | 166 | 32 |
| 555 | Carbon | 13 | 1.1K | 562 | 425 |
| 556 | Fungi | 32 | 1.1K | 206 | 285 |
| 557 | Human Resources | 21 | 1.1K | 65 | 77 |
| 558 | Marine Ecology | 50 | 1.1K | 62 | 79 |
| 558 | Nonlinear Dynamics | 50 | 1.1K | 491 | 573 |
| 558 | Meteorites | 18 | 1.1K | 379 | 372 |
| 561 | Randomized Controlled Trials | 68 | 1.1K | 79 | 89 |
| 562 | coal | 23 | 1.1K | 485 | 455 |
| 563 | Early Childhood Education | 65 | 1.1K | 22 | 44 |
| 564 | Detectors | 48 | 1.1K | 182 | 222 |
| 565 | Product Design | 21 | 1.0K | 140 | 47 |
| 565 | Hemodynamics | 31 | 1.0K | 143 | 257 |
| 567 | Engineering Mathematics | 55 | 1.0K | 231 | 273 |
| 568 | Signal Processing | 51 | 1.0K | 564 | 753 |
| 569 | Clinical Immunology | 40 | 1.0K | 189 | 247 |
| 570 | Ethics | 49 | 1.0K | 88 | 86 |
| 571 | Women's health | 25 | 1.0K | 259 | 166 |
| 572 | Environmental Chemistry | 34 | 1.0K | 400 | 706 |
| 573 | Solar Energy | 13 | 1.0K | 748 | 433 |
| 574 | Venture Capital | 3 | 1.0K | 282 | 163 |
| 575 | Immunotherapy | 26 | 999 | 461 | 549 |
| 576 | children | 28 | 993 | 52 | 83 |
| 577 | Fluid Dynamics | 26 | 990 | 294 | 217 |
| 578 | economic policy | 68 | 987 | 294 | 392 |
| 579 | Logic | 27 | 986 | 68 | 16 |
| 580 | free radicals | 21 | 982 | 398 | 473 |
| 581 | health behavior | 34 | 981 | 167 | 191 |
| 582 | Schizophrenia | 17 | 978 | 350 | 295 |
| 583 | Speech | 59 | 975 | 107 | 219 |
| 584 | Gene expression regulation | 25 | 966 | 179 | 246 |
| 585 | Process Control | 23 | 954 | 201 | 320 |
| 586 | Radiation | 27 | 951 | 599 | 385 |
| 587 | Electrophysiology | 24 | 949 | 258 | 153 |
| 588 | Culture | 70 | 947 | 89 | 120 |
| 589 | Asthma | 19 | 946 | 130 | 61 |
| 590 | Aquatic ecology | 36 | 945 | 104 | 124 |
| 591 | Gender Studies | 25 | 943 | 38 | 38 |
| 592 | Rural Development | 29 | 942 | 44 | 73 |
| 593 | Plastics | 36 | 941 | 297 | 292 |
| 594 | Quality of life | 37 | 940 | 205 | 329 |
| 594 | Criminal investigation | 44 | 940 | 8 | 9 |
| 596 | Cognitive Therapy | 27 | 937 | 105 | 95 |
| 597 | Dietetics | 44 | 936 | 89 | 111 |
| 598 | Biogeochemistry | 19 | 934 | 371 | 399 |
| 599 | Sustainable Engineering | 23 | 932 | 476 | 502 |
| 600 | sex crimes | 35 | 925 | 70 | 90 |
| 601 | women | 27 | 924 | 121 | 33 |
| 602 | Soil Mechanics | 35 | 919 | 258 | 320 |
| 603 | Steroids | 36 | 918 | 149 | 180 |
| 604 | Diagnostic microbiology | 10 | 917 | 541 | 466 |
| 605 | cosmic rays | 15 | 915 | 129 | 30 |
| 606 | Nonlinear Optics | 16 | 914 | 11 | 5 |
| 607 | Forecasting | 10 | 912 | 183 | 82 |
| 608 | economic forecasting | 9 | 910 | 98 | 51 |
| 609 | Sedimentology | 20 | 908 | 124 | 122 |
| 610 | Phylogeny | 23 | 906 | 193 | 229 |
| 611 | DNA polymerases | 3 | 899 | 366 | 210 |
| 611 | Emotions | 19 | 899 | 178 | 189 |
| 613 | Criminal psychology | 65 | 898 | 67 | 183 |
| 614 | Immunopathology | 22 | 896 | 387 | 344 |
| 614 | data protection | 17 | 896 | 74 | 34 |
| 616 | Seismology | 24 | 894 | 116 | 97 |
| 617 | Surface-Active Agents | 15 | 892 | 321 | 220 |
| 617 | Surface properties | 15 | 892 | 354 | 242 |
| 617 | race relations | 15 | 892 | 201 | 67 |
| 620 | exobiology | 10 | 888 | 96 | 67 |
| 621 | protein | 37 | 884 | 206 | 296 |
| 622 | Telecommunication Systems | 32 | 881 | 304 | 220 |
| 623 | Computer Science | 43 | 878 | 264 | 262 |
| 624 | breastfeeding | 10 | 877 | 160 | 38 |
| 625 | Data Mining | 13 | 876 | 319 | 180 |
| 626 | Leukemia | 19 | 872 | 324 | 344 |
| 627 | Crystallography | 92 | 870 | 131 | 217 |
| 628 | Autism | 27 | 869 | 138 | 193 |
| 629 | violence | 29 | 863 | 224 | 250 |
| 630 | Risk Management | 21 | 855 | 118 | 100 |
| 631 | Geomagnetism | 26 | 854 | 167 | 151 |
| 631 | Hazardous waste | 14 | 854 | 293 | 276 |
| 633 | radioactive waste | 13 | 853 | 248 | 253 |
| 633 | industrial waste | 13 | 853 | 272 | 253 |
| 633 | Yeast | 21 | 853 | 62 | 72 |
| 636 | Pharmacy management | 46 | 848 | 14 | 22 |
| 637 | Roads | 60 | 847 | 105 | 125 |
| 638 | Capital market | 31 | 843 | 36 | 53 |
| 639 | food industry | 20 | 838 | 106 | 41 |
| 640 | locomotion | 28 | 831 | 82 | 117 |
| 640 | posture | 28 | 831 | 82 | 117 |
| 640 | gait | 28 | 831 | 82 | 117 |
| 640 | walking | 28 | 831 | 82 | 117 |
| 644 | Globalization | 38 | 829 | 34 | 69 |
| 645 | disabilities | 41 | 828 | 76 | 106 |
| 646 | Medical Technology | 33 | 827 | 242 | 331 |
| 647 | Ethnic relations | 17 | 822 | 133 | 36 |
| 647 | commerce | 29 | 822 | 278 | 419 |
| 649 | Algorithms | 47 | 813 | 20 | 61 |
| 650 | Transportation Engineering | 24 | 811 | 62 | 56 |
| 651 | world | 15 | 805 | 224 | 243 |
| 652 | Indigenous Peoples | 65 | 801 | 2 | 3 |
| 653 | Intellectual disability | 34 | 785 | 154 | 194 |
| 654 | Educational Sociology | 37 | 783 | 17 | 12 |
| 655 | Memory disorders | 9 | 780 | 103 | 36 |
| 656 | Radiology | 33 | 770 | 269 | 222 |
| 657 | eye | 11 | 757 | 52 | 123 |
| 658 | miniaturization | 19 | 756 | 661 | 767 |
| 659 | Global Health | 27 | 752 | 183 | 137 |
| 660 | Cardiac electrophysiology | 15 | 749 | 82 | 68 |
| 660 | Parallel Processing | 11 | 749 | 187 | 142 |
| 660 | arrhythmia | 15 | 749 | 82 | 68 |
| 663 | Engineering Geology | 42 | 748 | 247 | 424 |
| 664 | Family | 35 | 747 | 191 | 228 |
| 665 | Game Theory | 20 | 745 | 140 | 105 |
| 666 | drug control | 27 | 744 | 53 | 58 |
| 667 | Gender identity | 15 | 738 | 42 | 5 |
| 668 | Database Management | 35 | 737 | 134 | 211 |
| 668 | Neural circuitry | 30 | 737 | 468 | 623 |
| 670 | Ethnic Conflict | 6 | 732 | 155 | 28 |
| 670 | forced migration | 6 | 732 | 155 | 28 |
| 672 | Photography | 171 | 731 | 135 | 112 |
| 673 | Health Services Administration | 37 | 727 | 126 | 202 |
| 673 | Japan | 31 | 727 | 321 | 270 |
| 675 | visualization | 37 | 725 | 300 | 219 |
| 676 | International Education | 28 | 722 | 10 | 15 |
| 677 | Retina | 9 | 720 | 50 | 128 |
| 678 | Flexible manufacturing systems | 12 | 717 | 93 | 39 |
| 678 | Solid State Chemistry | 27 | 717 | 911 | 756 |
| 680 | Signal Transduction | 24 | 715 | 378 | 570 |
| 681 | enzymes | 27 | 710 | 375 | 464 |
| 682 | Histochemistry | 25 | 707 | 238 | 237 |
| 683 | Intelligent Control Systems | 28 | 705 | 147 | 79 |
| 684 | Cross-Cultural Studies | 41 | 704 | 26 | 85 |
| 685 | Geographic information systems | 34 | 702 | 125 | 140 |
| 685 | Medical Ethics | 36 | 702 | 203 | 167 |
| 685 | Ecosystem management | 22 | 702 | 121 | 180 |
| 688 | Soil dynamics | 31 | 696 | 71 | 112 |
| 689 | Learning disabilities | 28 | 695 | 190 | 219 |
| 690 | Drug targeting | 7 | 694 | 130 | 47 |
| 690 | environmental indicators | 21 | 694 | 240 | 347 |
| 690 | cloning | 12 | 694 | 227 | 261 |
| 693 | Nanoparticles | 18 | 688 | 707 | 661 |
| 694 | Child welfare | 41 | 687 | 176 | 233 |
| 694 | Aggression | 26 | 687 | 62 | 138 |
| 696 | Microelectronics | 27 | 685 | 537 | 723 |
| 697 | Plant breeding | 17 | 684 | 204 | 144 |
| 698 | Multicultural Education | 39 | 682 | 16 | 34 |
| 699 | Sea | 23 | 680 | 86 | 112 |
| 699 | Fishery resources | 23 | 680 | 96 | 123 |
| 701 | Viticulture | 25 | 679 | 5 | 13 |
| 701 | Bioethics | 35 | 679 | 155 | 126 |
| 703 | Wind power | 12 | 678 | 67 | 30 |
| 704 | X-ray crystallography | 70 | 676 | 18 | 74 |
| 705 | soil conservation | 9 | 674 | 347 | 132 |
| 706 | Language teaching | 21 | 673 | 5 | 6 |
| 706 | second language | 21 | 673 | 5 | 6 |
| 708 | Electrochemical Analysis | 27 | 670 | 430 | 454 |
| 709 | Ore deposits | 15 | 669 | 182 | 146 |
| 710 | Organizational Sociology | 20 | 661 | 57 | 63 |
| 711 | crops | 50 | 658 | 2 | 2 |
| 712 | school sports | 25 | 653 | 9 | 16 |
| 713 | Teacher Education | 21 | 652 | 15 | 9 |
| 714 | electric vehicles | 13 | 650 | 92 | 65 |
| 715 | Urban Policy | 32 | 648 | 91 | 195 |
| 715 | Decision making | 35 | 648 | 241 | 427 |
| 717 | infection | 23 | 647 | 467 | 580 |
| 717 | child abuse | 17 | 647 | 258 | 276 |
| 719 | Metallic Glasses | 13 | 646 | 156 | 89 |
| 719 | Economic Assistance | 10 | 646 | 297 | 246 |
| 721 | mycoses | 4 | 645 | 612 | 359 |
| 722 | Psychoneuroimmunology | 13 | 643 | 205 | 235 |
| 722 | Neuroimmunology | 13 | 643 | 242 | 261 |
| 724 | hospice care | 26 | 641 | 61 | 53 |
| 725 | curriculum planning | 25 | 640 | 9 | 11 |
| 726 | Development | 12 | 639 | 295 | 269 |
| 727 | Advertising | 13 | 637 | 76 | 81 |
| 728 | Feminist psychology | 26 | 635 | 1 | 5 |
| 729 | big data | 9 | 634 | 195 | 87 |
| 730 | Condensed Matter | 41 | 628 | 1,019 | 1,205 |
| 731 | Immune system | 11 | 624 | 414 | 524 |
| 732 | curriculum | 22 | 621 | 7 | 5 |
| 733 | Alzheimer's disease | 41 | 618 | 298 | 351 |
| 734 | Developmental Psychology | 28 | 617 | 262 | 403 |
| 735 | Educational evaluation | 4 | 616 | 130 | 22 |
| 735 | Insect biochemistry | 7 | 616 | 228 | 127 |
| 737 | Liver diseases | 11 | 613 | 637 | 641 |
| 738 | Fracture mechanics | 28 | 608 | 402 | 456 |
| 739 | Magnetic Materials | 17 | 607 | 619 | 506 |
| 740 | Waste management | 40 | 606 | 181 | 295 |
| 741 | freshwater biology | 20 | 602 | 221 | 244 |
| 742 | Culture techniques | 11 | 601 | 106 | 42 |
| 743 | Urology | 19 | 598 | 565 | 537 |
| 744 | Vocational guidance | 8 | 597 | 513 | 364 |
| 745 | Cosmochemistry | 19 | 595 | 260 | 304 |
| 746 | Technological Innovations | 18 | 594 | 236 | 286 |
| 747 | Organometallic chemistry | 23 | 590 | 678 | 524 |
| 747 | Matroids | 26 | 590 | 30 | 36 |
| 747 | technical education | 31 | 590 | 60 | 77 |
| 750 | Neuroanatomy | 14 | 589 | 19 | 25 |
| 751 | child behavior | 23 | 587 | 68 | 143 |
| 751 | Thorax | 8 | 587 | 199 | 144 |
| 753 | Architecture | 41 | 580 | 48 | 68 |
| 754 | Communication in medicine | 8 | 579 | 286 | 134 |
| 755 | tests | 12 | 573 | 34 | 38 |
| 756 | Humanities | 36 | 572 | 198 | 216 |
| 756 | Emergency Medicine | 22 | 572 | 380 | 303 |
| 758 | Sociolinguistics | 27 | 569 | 53 | 81 |
| 759 | Reading | 27 | 568 | 122 | 159 |
| 760 | Emergency Medical Services | 12 | 559 | 217 | 90 |
| 760 | Social policy | 42 | 559 | 112 | 219 |
| 762 | Psychiatric Epidemiology | 17 | 557 | 119 | 155 |
| 763 | Social interaction | 18 | 556 | 59 | 81 |
| 764 | DNA methylation | 5 | 555 | 168 | 72 |
| 765 | Energy Consumption | 7 | 554 | 189 | 161 |
| 765 | cell interaction | 17 | 554 | 319 | 396 |
| 767 | international trade | 20 | 553 | 115 | 171 |
| 767 | Cell death | 4 | 553 | 874 | 605 |
| 769 | Electrophoresis | 26 | 550 | 407 | 514 |
| 770 | Economic Geography | 24 | 542 | 40 | 78 |
| 771 | Allergies | 7 | 540 | 34 | 27 |
| 772 | Organizational Behavior | 20 | 539 | 149 | 296 |
| 773 | planning | 25 | 535 | 93 | 110 |
| 774 | Recombinant DNA | 16 | 534 | 530 | 488 |
| 775 | Soil biology | 10 | 531 | 474 | 489 |
| 775 | Autoimmunity | 13 | 531 | 270 | 308 |
| 777 | Reproductive health | 19 | 529 | 184 | 190 |
| 778 | ethnicity | 38 | 526 | 58 | 88 |
| 779 | human development | 32 | 524 | 146 | 316 |
| 780 | Extreme environments | 7 | 521 | 80 | 39 |
| 781 | land degradation | 4 | 520 | 411 | 86 |
| 781 | degradation | 4 | 520 | 411 | 86 |
| 783 | Coastal zone management | 25 | 519 | 86 | 151 |
| 784 | Carcinogenesis | 18 | 516 | 256 | 379 |
| 785 | anesthesia | 8 | 513 | 242 | 26 |
| 786 | Neurolinguistics | 8 | 511 | 234 | 176 |
| 786 | Water Purification | 34 | 511 | 155 | 271 |
| 788 | eugenics | 13 | 510 | 171 | 118 |
| 789 | construction | 11 | 509 | 58 | 49 |
| 790 | brain mapping | 17 | 506 | 202 | 305 |
| 790 | recreation | 27 | 506 | 137 | 148 |
| 792 | Primates | 9 | 505 | 348 | 201 |
| 792 | Digestive system diseases | 22 | 505 | 267 | 315 |
| 794 | Mobile Computing | 19 | 504 | 322 | 344 |
| 795 | Mineral resources | 4 | 503 | 504 | 170 |
| 796 | Nutrigenomics | 8 | 502 | 25 | 19 |
| 797 | Psychiatric Nursing | 21 | 499 | 136 | 110 |
| 798 | solar power | 4 | 498 | 678 | 332 |
| 798 | solar cells | 4 | 498 | 739 | 368 |
| 800 | Environmental Education | 19 | 497 | 49 | 80 |
| 801 | Molecular cloning | 15 | 496 | 518 | 484 |
| 802 | drug abuse | 26 | 494 | 118 | 146 |
| 803 | Industrial Engineering | 25 | 490 | 515 | 704 |
| 803 | Virtual reality | 16 | 490 | 59 | 76 |
| 805 | Agricultural Engineering | 7 | 488 | 229 | 107 |
| 806 | Criminology | 47 | 487 | 162 | 311 |
| 806 | Genetic recombination | 14 | 487 | 539 | 482 |
| 806 | disease outbreaks | 10 | 487 | 225 | 188 |
| 806 | Epidemics | 10 | 487 | 214 | 188 |
| 810 | Welfare Economics | 23 | 486 | 75 | 129 |
| 810 | Brain damage | 15 | 486 | 95 | 108 |
| 812 | Small Business | 13 | 482 | 255 | 486 |
| 813 | Philippines | 15 | 481 | 14 | 8 |
| 814 | Information Theory | 19 | 479 | 489 | 518 |
| 815 | Intelligent Transportation Systems | 15 | 478 | 403 | 503 |
| 815 | Longevity | 1 | 478 | 349 | 23 |
| 817 | Chromatographic analysis | 27 | 475 | 479 | 544 |
| 818 | Biodegradation | 16 | 474 | 121 | 196 |
| 819 | Trace elements | 12 | 470 | 49 | 59 |
| 820 | Oncogenes | 9 | 469 | 549 | 639 |
| 821 | concrete | 12 | 466 | 413 | 529 |
| 822 | Rheology | 15 | 463 | 187 | 177 |
| 822 | Food texture | 15 | 463 | 29 | 27 |
| 822 | population geography | 15 | 463 | 74 | 85 |
| 825 | Political Geography | 7 | 461 | 155 | 80 |
| 826 | Parasitic Diseases | 19 | 457 | 653 | 758 |
| 827 | Religion and Culture | 25 | 455 | 15 | 21 |
| 827 | pharmaceutical industry | 14 | 455 | 137 | 90 |
| 829 | Public Administration | 24 | 453 | 387 | 441 |
| 830 | movement | 12 | 452 | 80 | 91 |
| 830 | economic conditions | 67 | 452 | 22 | 193 |
| 832 | Proteome | 12 | 451 | 500 | 532 |
| 833 | Dermatology | 24 | 449 | 529 | 627 |
| 834 | Environmental pollutants | 25 | 447 | 614 | 1,052 |
| 835 | Semiconductors | 8 | 446 | 1,371 | 656 |
| 836 | Astrocytes | 5 | 445 | 328 | 269 |
| 836 | Computer Literacy | 8 | 445 | 65 | 43 |
| 838 | Investment analysis | 26 | 443 | 97 | 239 |
| 838 | individual differences | 8 | 443 | 128 | 106 |
| 840 | Infections | 13 | 441 | 434 | 569 |
| 840 | Marine resources | 21 | 441 | 118 | 189 |
| 842 | Patient education | 19 | 439 | 165 | 252 |
| 843 | Kinetics | 11 | 428 | 150 | 76 |
| 844 | Chromatography | 23 | 427 | 435 | 523 |
| 844 | Flow cytometry | 16 | 427 | 69 | 97 |
| 846 | Industrial Safety | 12 | 426 | 462 | 387 |
| 846 | Nutritional support | 11 | 426 | 39 | 63 |
| 848 | Medicinal plants | 8 | 425 | 783 | 661 |
| 849 | Educational Leadership | 16 | 423 | 12 | 9 |
| 849 | Water Microbiology | 15 | 423 | 52 | 90 |
| 849 | Kidney diseases | 16 | 423 | 276 | 341 |
| 852 | Subjectivity | 4 | 422 | 18 | 4 |
| 852 | government | 13 | 422 | 230 | 202 |
| 854 | Community Psychology | 23 | 421 | 124 | 255 |
| 855 | Developmental Immunology | 7 | 419 | 322 | 225 |
| 856 | Multilingualism | 15 | 418 | 37 | 44 |
| 857 | Ecological Engineering | 11 | 415 | 195 | 250 |
| 857 | Industrial Sociology | 5 | 415 | 122 | 59 |
| 857 | cross-cultural comparison | 15 | 415 | 107 | 98 |
| 860 | Relationships | 10 | 413 | 41 | 59 |
| 861 | Chronobiology | 15 | 412 | 98 | 111 |
| 861 | Computer-Aided Design | 20 | 412 | 338 | 410 |
| 861 | biological clocks | 15 | 412 | 98 | 111 |
| 861 | circadian rhythm | 15 | 412 | 98 | 111 |
| 865 | speech therapy | 23 | 410 | 94 | 120 |
| 866 | mutagens | 10 | 408 | 348 | 410 |
| 867 | Fouling | 14 | 405 | 28 | 62 |
| 868 | Earthquakes | 14 | 404 | 125 | 99 |
| 869 | Ethnology | 50 | 403 | 169 | 353 |
| 870 | Remote Sensing | 17 | 402 | 517 | 410 |
| 871 | Ecohydrology | 5 | 401 | 231 | 64 |
| 872 | Food Preservation | 27 | 400 | 103 | 138 |
| 872 | Drug delivery devices | 10 | 400 | 38 | 86 |
| 874 | Energy Conversion | 12 | 396 | 577 | 847 |
| 874 | Landslides | 14 | 396 | 45 | 105 |
| 876 | Fishery management | 22 | 391 | 202 | 263 |
| 877 | Plant Genetics | 7 | 390 | 398 | 399 |
| 877 | sexual orientation | 9 | 390 | 9 | 6 |
| 877 | Southern states | 4 | 390 | 235 | 23 |
| 880 | Nuclear Chemistry | 35 | 389 | 187 | 290 |
| 880 | Radio wave propagation | 16 | 389 | 234 | 174 |
| 880 | Geodynamics | 21 | 389 | 310 | 472 |
| 880 | Antigens | 21 | 389 | 203 | 296 |
| 884 | biopolymers | 20 | 388 | 387 | 531 |
| 885 | Chemical Ecology | 18 | 386 | 128 | 231 |
| 886 | Respiratory system | 7 | 384 | 320 | 223 |
| 886 | Elderly | 31 | 384 | 297 | 246 |
| 888 | Architectural Design | 19 | 383 | 77 | 85 |
| 889 | Neurosurgery | 9 | 381 | 502 | 426 |
| 890 | Lipids | 10 | 380 | 624 | 662 |
| 891 | Career development | 17 | 375 | 78 | 75 |
| 892 | sustainability | 10 | 374 | 361 | 483 |
| 893 | Feminist theory | 6 | 373 | 99 | 37 |
| 893 | environmental exposure | 18 | 373 | 621 | 945 |
| 893 | energy development | 15 | 373 | 203 | 440 |
| 896 | Hippocampus | 7 | 371 | 153 | 169 |
| 897 | Taste | 16 | 370 | 53 | 78 |
| 897 | smell | 16 | 370 | 53 | 78 |
| 897 | Radio waves | 12 | 370 | 429 | 441 |
| 900 | Social Choice Theory | 16 | 369 | 46 | 41 |
| 900 | Consciousness | 17 | 369 | 105 | 178 |
| 902 | Marine Meteorology | 8 | 367 | 184 | 176 |
| 902 | Instructional systems | 14 | 367 | 10 | 20 |
| 904 | Circadian rhythms | 10 | 366 | 100 | 117 |
| 904 | mental health promotion | 14 | 366 | 36 | 44 |
| 904 | biological rhythms | 10 | 366 | 134 | 126 |
| 904 | Psychiatric hospitals | 7 | 366 | 169 | 112 |
| 908 | Forensic Psychology | 16 | 365 | 94 | 90 |
| 909 | Rock Mechanics | 17 | 363 | 323 | 447 |
| 909 | Classification | 5 | 363 | 151 | 104 |
| 909 | Post-traumatic stress disorder | 17 | 363 | 241 | 367 |
| 912 | micromechanics | 7 | 361 | 349 | 233 |
| 912 | Plant tissue culture | 6 | 361 | 450 | 258 |
| 912 | Plant cell culture | 6 | 361 | 386 | 255 |
| 915 | supercritical fluids | 9 | 360 | 186 | 177 |
| 916 | Music | 15 | 359 | 287 | 221 |
| 916 | Politics | 11 | 359 | 219 | 192 |
| 916 | cultural pluralism | 17 | 359 | 46 | 72 |
| 919 | mathematical concepts | 23 | 358 | 50 | 66 |
| 920 | Natural resources | 9 | 357 | 385 | 377 |
| 921 | Serology | 9 | 356 | 174 | 130 |
| 921 | Tunneling | 11 | 356 | 137 | 188 |
| 921 | underground construction | 11 | 356 | 137 | 188 |
| 924 | community development | 15 | 355 | 157 | 158 |
| 925 | Energy Storage | 13 | 353 | 538 | 637 |
| 925 | Dynamics | 19 | 353 | 559 | 524 |
| 925 | Parasitology | 18 | 353 | 911 | 988 |
| 928 | Antibodies | 18 | 352 | 147 | 234 |
| 929 | Functional Genomics | 7 | 351 | 124 | 131 |
| 929 | Metallography | 13 | 351 | 302 | 305 |
| 929 | Algal blooms | 6 | 351 | 151 | 134 |
| 929 | Cyanobacteria | 6 | 351 | 151 | 134 |
| 929 | microalgae | 6 | 351 | 151 | 134 |
| 934 | Geometry | 29 | 347 | 315 | 258 |
| 935 | educational innovations | 14 | 346 | 146 | 190 |
| 936 | Muscles | 12 | 345 | 329 | 444 |
| 937 | Extracellular matrix | 4 | 343 | 191 | 155 |
| 937 | educational planning | 12 | 343 | 122 | 163 |
| 937 | collagen | 4 | 343 | 205 | 163 |
| 940 | Ethnoarchaeology | 11 | 341 | 43 | 60 |
| 941 | Crystal growth | 12 | 339 | 470 | 463 |
| 941 | DNA | 15 | 339 | 127 | 168 |
| 943 | Neurotoxicology | 7 | 338 | 297 | 244 |
| 943 | consumer behavior | 10 | 338 | 210 | 288 |
| 945 | Access to Information | 2 | 337 | 265 | 88 |
| 945 | Information dissemination | 2 | 337 | 265 | 88 |
| 947 | Multimedia Systems | 21 | 335 | 559 | 674 |
| 947 | Recycling | 11 | 335 | 210 | 467 |
| 949 | Microbiota | 7 | 334 | 10 | 6 |
| 950 | mental processes | 10 | 333 | 150 | 98 |
| 951 | carcinogens | 5 | 332 | 652 | 510 |
| 951 | Continental shelf | 10 | 332 | 161 | 178 |
| 953 | Photochemistry | 14 | 331 | 722 | 788 |
| 954 | Genetic translocation | 10 | 330 | 48 | 65 |
| 954 | Bacterial infections | 3 | 330 | 715 | 508 |
| 954 | plasmids | 10 | 330 | 48 | 65 |
| 957 | Approximation Theory | 18 | 328 | 102 | 98 |
| 958 | Social Ethics | 18 | 326 | 16 | 12 |
| 958 | econometric models | 9 | 326 | 231 | 199 |
| 960 | Thin Films | 13 | 325 | 133 | 101 |
| 961 | Coding Theory | 16 | 323 | 85 | 57 |
| 962 | Industrial Design | 4 | 321 | 229 | 89 |
| 962 | Cryptography | 15 | 321 | 182 | 122 |
| 964 | scientific societies | 14 | 317 | 237 | 285 |
| 965 | Biomass | 4 | 316 | 564 | 369 |
| 966 | Cell metabolism | 5 | 315 | 445 | 598 |
| 967 | Intercultural Communication | 30 | 313 | 22 | 143 |
| 968 | pheromones | 15 | 312 | 135 | 265 |
| 969 | Ecological Genetics | 14 | 311 | 172 | 157 |
| 969 | Geopolitics | 3 | 311 | 256 | 47 |
| 971 | Chemical analysis | 9 | 307 | 600 | 563 |
| 972 | Soft Condensed Matter | 19 | 306 | 381 | 554 |
| 972 | Strategic planning | 9 | 306 | 337 | 350 |
| 972 | Financial management | 5 | 306 | 330 | 273 |
| 975 | Vocational Education | 3 | 303 | 521 | 189 |
| 976 | Landscape Ecology | 7 | 301 | 264 | 256 |
| 977 | families | 26 | 299 | 197 | 312 |
| 978 | glycoproteins | 6 | 298 | 278 | 227 |
| 978 | Glycoconjugates | 6 | 298 | 278 | 227 |
| 978 | Groundwater | 5 | 298 | 411 | 249 |
| 978 | glycolipids | 6 | 298 | 278 | 227 |
| 982 | drug resistance | 7 | 296 | 340 | 301 |
| 983 | Thrombosis | 11 | 295 | 497 | 558 |
| 983 | Family Therapy | 21 | 295 | 196 | 283 |
| 985 | Magnetic Resonance Spectroscopy | 19 | 294 | 428 | 479 |
| 986 | Cellulose | 7 | 292 | 322 | 298 |
| 986 | international cooperation | 18 | 292 | 144 | 267 |
| 988 | Risk | 4 | 291 | 437 | 276 |
| 989 | heredity | 9 | 290 | 321 | 250 |
| 990 | Developmental Neurobiology | 10 | 287 | 185 | 180 |
| 990 | Neuromuscular diseases | 11 | 287 | 244 | 298 |
| 992 | Quantum electronics | 18 | 286 | 609 | 684 |
| 992 | Writing | 11 | 286 | 73 | 109 |
| 994 | Restoration Ecology | 17 | 283 | 94 | 200 |
| 994 | Hydrodynamics | 12 | 283 | 247 | 320 |
| 994 | histological techniques | 5 | 283 | 491 | 441 |
| 994 | Hypertension in pregnancy | 7 | 283 | 65 | 31 |
| 998 | Pacific Islands | 35 | 282 | 17 | 40 |
| 999 | Forest Ecology | 15 | 281 | 391 | 604 |
| 999 | Cannabis | 2 | 281 | 112 | 20 |