| 2 | Science | 1,118 | 98.5K | 341 | 318 |
| 12 | United States | 1,715 | 42.5K | 52 | 60 |
| 13 | Environment | 382 | 42.2K | 203 | 106 |
| 14 | Natural history | 277 | 39.5K | 235 | 377 |
| 16 | Spectrum analysis | 606 | 33.4K | 171 | 212 |
| 17 | Quantum Gravity | 504 | 32.0K | 105 | 63 |
| 18 | Research | 856 | 30.0K | 306 | 328 |
| 20 | Pollution | 568 | 27.0K | 140 | 194 |
| 22 | management | 250 | 22.7K | 146 | 109 |
| 24 | Environmental Health | 429 | 20.4K | 184 | 204 |
| 25 | Obesity | 372 | 19.8K | 36 | 33 |
| 27 | Cell Biology | 278 | 19.6K | 346 | 426 |
| 30 | Condensed Matter | 617 | 18.9K | 205 | 241 |
| 33 | Materials | 442 | 18.1K | 436 | 435 |
| 34 | Behavior | 426 | 18.1K | 88 | 108 |
| 36 | Virology | 309 | 17.3K | 188 | 346 |
| 40 | Statistical physics | 501 | 16.5K | 147 | 124 |
| 43 | marketing | 143 | 16.2K | 72 | 51 |
| 44 | environmental pollution | 408 | 15.8K | 113 | 147 |
| 47 | biological evolution | 192 | 13.9K | 107 | 130 |
| 48 | Neurophysiology | 241 | 13.8K | 234 | 265 |
| 50 | Psychophysiology | 414 | 13.5K | 122 | 190 |
| 51 | Cancer | 168 | 13.4K | 486 | 316 |
| 52 | human behavior | 234 | 13.1K | 90 | 110 |
| 53 | Molecular Genetics | 210 | 13.1K | 56 | 59 |
| 54 | free radicals | 156 | 12.9K | 37 | 22 |
| 58 | Developmental Disabilities | 187 | 11.8K | 19 | 16 |
| 59 | Diabetes | 129 | 11.7K | 259 | 179 |
| 60 | Diet | 226 | 11.7K | 90 | 89 |
| 63 | behavior modification | 212 | 11.3K | 6 | 6 |
| 65 | Metabolic diseases | 143 | 11.2K | 264 | 225 |
| 69 | Diabetes mellitus | 111 | 10.8K | 268 | 185 |
| 71 | Brain | 247 | 10.5K | 174 | 197 |
| 74 | Molecular evolution | 162 | 10.1K | 51 | 64 |
| 75 | Geochemistry | 182 | 10.0K | 194 | 152 |
| 76 | Business | 112 | 9.6K | 117 | 96 |
| 79 | polymerization | 234 | 9.3K | 374 | 279 |
| 81 | Water pollution | 177 | 9.1K | 120 | 135 |
| 83 | Social behavior | 147 | 9.0K | 28 | 29 |
| 85 | Birds | 349 | 8.5K | 16 | 15 |
| 86 | sanitation | 106 | 8.5K | 144 | 161 |
| 87 | Educational Psychology | 158 | 8.4K | 65 | 43 |
| 88 | Water | 140 | 8.2K | 174 | 193 |
| 89 | Entomology | 348 | 8.1K | 66 | 54 |
| 91 | Biocompatible Materials | 121 | 7.9K | 563 | 462 |
| 92 | Earth Sciences | 125 | 7.7K | 347 | 230 |
| 94 | Memory | 207 | 7.7K | 98 | 108 |
| 96 | Cell differentiation | 51 | 7.6K | 410 | 244 |
| 98 | Transportation | 297 | 7.4K | 43 | 61 |
| 99 | Mathematical Physics | 202 | 7.4K | 210 | 197 |
| 101 | Environmental monitoring | 160 | 7.3K | 234 | 242 |
| 102 | Estuaries | 104 | 7.3K | 1 | 2 |
| 103 | Sports | 239 | 7.1K | 54 | 67 |
| 104 | Molecular ecology | 89 | 7.1K | 81 | 78 |
| 105 | Evolution | 118 | 7.1K | 169 | 199 |
| 109 | behavior therapy | 190 | 6.7K | 17 | 29 |
| 110 | Phylogeny | 108 | 6.7K | 25 | 20 |
| 112 | School Psychology | 112 | 6.5K | 19 | 7 |
| 115 | Cell death | 9 | 6.2K | 883 | 183 |
| 116 | Nanostructured Materials | 140 | 6.2K | 363 | 319 |
| 117 | Composite Materials | 128 | 6.2K | 267 | 235 |
| 118 | Cardiovascular system | 77 | 6.0K | 282 | 279 |
| 119 | Health Education | 177 | 6.0K | 87 | 68 |
| 120 | Ocean Engineering | 161 | 6.0K | 78 | 49 |
| 121 | Mycology | 144 | 5.9K | 79 | 70 |
| 122 | Child | 176 | 5.9K | 164 | 131 |
| 123 | Bacteriology | 103 | 5.8K | 208 | 238 |
| 124 | Autism | 121 | 5.8K | 18 | 21 |
| 128 | environmental protection | 114 | 5.5K | 252 | 212 |
| 129 | Ornithology | 227 | 5.5K | 16 | 16 |
| 130 | Population Genetics | 91 | 5.5K | 103 | 103 |
| 132 | Planets | 120 | 5.3K | 263 | 275 |
| 133 | Plant Ecology | 75 | 5.3K | 211 | 142 |
| 134 | Recombinant DNA | 60 | 5.3K | 138 | 33 |
| 135 | Meteorites | 69 | 5.3K | 182 | 150 |
| 136 | Attention | 176 | 5.3K | 101 | 114 |
| 138 | Child psychology | 118 | 5.3K | 152 | 188 |
| 139 | Roads | 260 | 5.2K | 20 | 22 |
| 140 | Environmental Chemistry | 120 | 5.2K | 96 | 225 |
| 141 | Colloids | 157 | 5.2K | 416 | 471 |
| 142 | Agronomy | 149 | 5.2K | 28 | 35 |
| 144 | commerce | 23 | 5.1K | 417 | 104 |
| 147 | viruses | 118 | 5.1K | 168 | 241 |
| 148 | Molecular cloning | 57 | 5.0K | 121 | 34 |
| 149 | Genetic recombination | 56 | 5.0K | 121 | 34 |
| 150 | Communication | 199 | 5.0K | 73 | 85 |
| 153 | Electrochemistry | 240 | 4.9K | 319 | 416 |
| 154 | Aging | 166 | 4.9K | 252 | 300 |
| 155 | Biogeochemistry | 66 | 4.8K | 146 | 118 |
| 158 | Perception | 169 | 4.8K | 138 | 172 |
| 161 | Fisheries | 168 | 4.7K | 87 | 93 |
| 163 | Visual Perception | 162 | 4.7K | 114 | 126 |
| 164 | nanoscience | 69 | 4.6K | 547 | 451 |
| 167 | Pharmaceutical Chemistry | 84 | 4.5K | 756 | 559 |
| 168 | Diagnostic microbiology | 47 | 4.4K | 238 | 194 |
| 169 | ecosystem | 86 | 4.4K | 71 | 105 |
| 170 | Exercise | 116 | 4.2K | 41 | 29 |
| 172 | psychotherapy | 57 | 4.2K | 232 | 145 |
| 173 | Microelectronics | 130 | 4.2K | 142 | 264 |
| 175 | Hypertension | 78 | 4.1K | 268 | 338 |
| 176 | Biodiversity | 77 | 4.1K | 243 | 239 |
| 177 | Clinical Chemistry | 82 | 4.1K | 473 | 368 |
| 178 | Child Development | 100 | 4.0K | 236 | 245 |
| 179 | recreation | 128 | 4.0K | 15 | 4 |
| 180 | Learning | 56 | 4.0K | 188 | 129 |
| 181 | Technology | 124 | 4.0K | 450 | 381 |
| 182 | Vocational guidance | 90 | 4.0K | 80 | 69 |
| 185 | Microorganisms | 53 | 3.9K | 134 | 140 |
| 190 | Genomics | 113 | 3.8K | 359 | 433 |
| 191 | Sleep Disorders | 64 | 3.7K | 303 | 174 |
| 192 | Sleep | 63 | 3.7K | 304 | 183 |
| 193 | Sports Medicine | 162 | 3.7K | 175 | 264 |
| 194 | alcoholism | 170 | 3.7K | 92 | 159 |
| 196 | Food | 80 | 3.6K | 421 | 331 |
| 198 | pain | 97 | 3.6K | 124 | 203 |
| 199 | Mental Disorders | 121 | 3.6K | 384 | 615 |
| 201 | Decision making | 71 | 3.5K | 105 | 93 |
| 202 | Wetland ecology | 132 | 3.5K | 2 | 7 |
| 203 | Homeostasis | 11 | 3.5K | 234 | 156 |
| 203 | Cell metabolism | 11 | 3.5K | 325 | 166 |
| 205 | Speech Disorders | 169 | 3.4K | 46 | 77 |
| 206 | Plastics | 52 | 3.4K | 213 | 51 |
| 207 | Developmental Biology | 62 | 3.4K | 454 | 506 |
| 207 | miniaturization | 54 | 3.4K | 334 | 356 |
| 209 | Virulence | 22 | 3.4K | 420 | 224 |
| 210 | Nervous system | 78 | 3.4K | 394 | 487 |
| 211 | cell physiology | 42 | 3.4K | 342 | 275 |
| 214 | Information Science | 218 | 3.3K | 43 | 203 |
| 215 | Fungi | 22 | 3.3K | 343 | 105 |
| 216 | school psychologists | 39 | 3.2K | 25 | 8 |
| 217 | Agriculture | 152 | 3.2K | 130 | 212 |
| 218 | Respiration | 81 | 3.2K | 172 | 187 |
| 219 | Intellectual disability | 110 | 3.2K | 37 | 45 |
| 220 | rehabilitation | 121 | 3.2K | 175 | 240 |
| 221 | Biomass Energy | 54 | 3.2K | 430 | 366 |
| 225 | nucleic acids | 72 | 3.2K | 288 | 519 |
| 226 | plasticity | 40 | 3.2K | 25 | 24 |
| 227 | Environmental pollutants | 84 | 3.1K | 187 | 182 |
| 228 | Sales management | 16 | 3.1K | 32 | 19 |
| 228 | selling | 16 | 3.1K | 32 | 19 |
| 231 | Substance Abuse | 144 | 3.1K | 87 | 135 |
| 232 | Drug delivery systems | 7 | 3.1K | 1144 | 149 |
| 235 | Schizophrenia | 57 | 3.0K | 186 | 163 |
| 236 | pollutants | 76 | 3.0K | 160 | 161 |
| 237 | actuators | 125 | 3.0K | 108 | 222 |
| 237 | transducers | 125 | 3.0K | 108 | 222 |
| 240 | Psychopharmacology | 47 | 3.0K | 391 | 322 |
| 241 | Immunity | 31 | 2.9K | 728 | 755 |
| 242 | Animal Behavior | 65 | 2.9K | 350 | 367 |
| 244 | California | 119 | 2.9K | 13 | 16 |
| 246 | Physical Chemistry | 85 | 2.9K | 308 | 367 |
| 248 | Reproduction | 86 | 2.9K | 360 | 351 |
| 249 | Lipids | 28 | 2.9K | 338 | 154 |
| 250 | Parasitology | 109 | 2.9K | 230 | 242 |
| 251 | Plant diseases | 95 | 2.8K | 250 | 225 |
| 252 | Plant cells | 31 | 2.8K | 391 | 430 |
| 253 | infection | 15 | 2.8K | 862 | 224 |
| 254 | Paleogeography | 61 | 2.8K | 71 | 72 |
| 255 | Thrombosis | 32 | 2.8K | 305 | 127 |
| 257 | Medical Physics | 177 | 2.8K | 113 | 229 |
| 258 | gene mapping | 58 | 2.8K | 330 | 389 |
| 259 | Gerontology | 142 | 2.8K | 169 | 192 |
| 261 | vascular diseases | 28 | 2.8K | 172 | 81 |
| 262 | Analytical Biochemistry | 89 | 2.8K | 85 | 144 |
| 263 | Molecules | 81 | 2.8K | 185 | 157 |
| 264 | Process Control | 47 | 2.8K | 54 | 67 |
| 265 | Aquaculture | 107 | 2.8K | 130 | 166 |
| 266 | Wetland conservation | 97 | 2.7K | 3 | 8 |
| 266 | Wetlands | 97 | 2.7K | 3 | 8 |
| 269 | Adolescent | 116 | 2.7K | 191 | 233 |
| 271 | Biodiversity conservation | 49 | 2.7K | 360 | 562 |
| 272 | Infections | 9 | 2.7K | 827 | 185 |
| 274 | Speech | 164 | 2.6K | 31 | 79 |
| 275 | Combustion | 71 | 2.6K | 154 | 143 |
| 278 | General Surgery | 135 | 2.6K | 32 | 36 |
| 279 | preventive medicine | 52 | 2.5K | 211 | 216 |
| 280 | drug addiction | 113 | 2.5K | 93 | 181 |
| 282 | Quality Control | 64 | 2.5K | 120 | 90 |
| 283 | Light | 32 | 2.5K | 190 | 246 |
| 285 | Production Management | 43 | 2.4K | 163 | 192 |
| 286 | Cognition | 87 | 2.4K | 229 | 319 |
| 287 | Fracture mechanics | 79 | 2.4K | 132 | 122 |
| 288 | plant communities | 47 | 2.4K | 173 | 202 |
| 289 | Entrepreneurship | 27 | 2.4K | 174 | 174 |
| 291 | Teaching | 82 | 2.4K | 151 | 154 |
| 292 | Smoking | 83 | 2.3K | 71 | 102 |
| 296 | soil microbiology | 45 | 2.3K | 282 | 336 |
| 297 | Combinatorial analysis | 140 | 2.3K | 35 | 31 |
| 299 | Liver diseases | 42 | 2.3K | 405 | 525 |
| 301 | finance | 117 | 2.3K | 162 | 285 |
| 302 | Forest Management | 78 | 2.3K | 99 | 137 |
| 303 | concrete | 17 | 2.2K | 361 | 175 |
| 306 | Neurons | 13 | 2.2K | 380 | 446 |
| 307 | Water quality management | 72 | 2.2K | 130 | 116 |
| 308 | arthritis | 32 | 2.2K | 418 | 360 |
| 309 | United Kingdom | 55 | 2.1K | 287 | 332 |
| 310 | organization | 20 | 2.1K | 230 | 183 |
| 312 | Electrophoresis | 68 | 2.1K | 156 | 153 |
| 313 | Breeding | 67 | 2.1K | 151 | 173 |
| 314 | Sedimentology | 31 | 2.1K | 72 | 41 |
| 316 | Plant physiology | 45 | 2.1K | 512 | 564 |
| 317 | Small Business | 19 | 2.1K | 190 | 167 |
| 318 | Stem cells | 36 | 2.0K | 438 | 342 |
| 319 | Food Microbiology | 20 | 2.0K | 423 | 214 |
| 320 | Business Ethics | 16 | 2.0K | 317 | 145 |
| 321 | Cosmochemistry | 46 | 2.0K | 83 | 90 |
| 323 | Ethology | 37 | 2.0K | 402 | 404 |
| 324 | Control Theory | 67 | 2.0K | 227 | 179 |
| 325 | heredity | 54 | 2.0K | 48 | 39 |
| 327 | fuel cells | 22 | 2.0K | 440 | 296 |
| 328 | feeding behavior | 40 | 2.0K | 112 | 70 |
| 330 | Health | 87 | 2.0K | 262 | 358 |
| 332 | behavioral medicine | 53 | 2.0K | 176 | 251 |
| 333 | Image Processing | 44 | 2.0K | 355 | 288 |
| 334 | Operations Research | 60 | 1.9K | 381 | 368 |
| 335 | genome | 26 | 1.9K | 498 | 566 |
| 336 | Oncogenes | 26 | 1.9K | 435 | 452 |
| 337 | Numerical Analysis | 76 | 1.9K | 276 | 240 |
| 339 | Chromosome mapping | 49 | 1.9K | 333 | 410 |
| 342 | Marine Pollution | 53 | 1.9K | 99 | 157 |
| 344 | Metallurgy | 60 | 1.9K | 493 | 474 |
| 345 | Muscles | 33 | 1.8K | 164 | 113 |
| 345 | enzymes | 46 | 1.8K | 226 | 211 |
| 347 | Hearing | 91 | 1.8K | 52 | 74 |
| 350 | pheromones | 28 | 1.8K | 86 | 49 |
| 351 | elasticity | 10 | 1.8K | 89 | 10 |
| 352 | Forest Ecology | 42 | 1.8K | 182 | 172 |
| 353 | Mental illness | 77 | 1.8K | 305 | 635 |
| 354 | water supply | 50 | 1.8K | 168 | 215 |
| 355 | Photonics | 21 | 1.8K | 710 | 473 |
| 356 | Immune system | 8 | 1.8K | 805 | 521 |
| 357 | System analysis | 85 | 1.8K | 218 | 284 |
| 359 | Nanoparticles | 25 | 1.8K | 594 | 329 |
| 362 | plant molecular biology | 33 | 1.7K | 453 | 589 |
| 363 | Continental shelf | 40 | 1.7K | 44 | 52 |
| 364 | Eating Disorders | 46 | 1.7K | 136 | 130 |
| 364 | Sedimentary rocks | 20 | 1.7K | 121 | 30 |
| 366 | Emergency Medicine | 70 | 1.7K | 231 | 211 |
| 368 | Insects | 53 | 1.7K | 216 | 177 |
| 369 | Signal Processing | 44 | 1.7K | 359 | 220 |
| 370 | fertility | 42 | 1.7K | 300 | 298 |
| 371 | Feeding and Eating Disorders | 45 | 1.7K | 132 | 129 |
| 372 | Geographic information systems | 53 | 1.7K | 68 | 37 |
| 373 | Wildlife conservation | 31 | 1.6K | 305 | 289 |
| 374 | personality | 70 | 1.6K | 200 | 403 |
| 375 | Mass Spectrometry | 71 | 1.6K | 112 | 197 |
| 377 | drug therapy | 52 | 1.6K | 603 | 610 |
| 378 | Mortgages | 49 | 1.6K | 9 | 5 |
| 380 | disabilities | 73 | 1.6K | 36 | 61 |
| 381 | Parasitic Diseases | 51 | 1.6K | 377 | 436 |
| 384 | Plants | 45 | 1.6K | 483 | 651 |
| 385 | food technology | 68 | 1.6K | 385 | 504 |
| 386 | Environmental Management | 48 | 1.6K | 557 | 754 |
| 387 | Invertebrates | 60 | 1.6K | 29 | 42 |
| 388 | Appetite | 28 | 1.6K | 124 | 82 |
| 389 | Metals | 55 | 1.6K | 487 | 510 |
| 390 | Genetic epidemiology | 42 | 1.6K | 40 | 40 |
| 391 | Parenteral nutrition | 33 | 1.6K | 234 | 278 |
| 392 | vibration | 46 | 1.6K | 176 | 158 |
| 394 | Infertility | 39 | 1.6K | 313 | 305 |
| 395 | Bioorganic chemistry | 47 | 1.5K | 731 | 764 |
| 397 | counseling | 76 | 1.5K | 157 | 214 |
| 398 | Engineering Geology | 59 | 1.5K | 179 | 265 |
| 400 | Cement | 16 | 1.5K | 203 | 161 |
| 403 | health services | 40 | 1.5K | 186 | 127 |
| 404 | International Finance | 41 | 1.4K | 282 | 222 |
| 405 | Biogeochemical cycles | 11 | 1.4K | 242 | 173 |
| 406 | proteins | 58 | 1.4K | 380 | 520 |
| 407 | Music | 74 | 1.4K | 41 | 44 |
| 408 | Public Administration | 73 | 1.4K | 154 | 189 |
| 409 | Organic Geochemistry | 26 | 1.4K | 63 | 72 |
| 410 | Advertising | 35 | 1.4K | 25 | 37 |
| 411 | Optical materials | 28 | 1.4K | 970 | 848 |
| 412 | Coastal zone management | 40 | 1.4K | 37 | 35 |
| 414 | Personality Assessment | 46 | 1.4K | 48 | 103 |
| 415 | mathematical analysis | 105 | 1.4K | 290 | 323 |
| 416 | families | 67 | 1.4K | 67 | 84 |
| 417 | Cellulose | 16 | 1.4K | 160 | 86 |
| 418 | Morphology | 41 | 1.4K | 96 | 74 |
| 419 | Social work | 110 | 1.4K | 116 | 172 |
| 420 | Smart Materials | 26 | 1.4K | 173 | 106 |
| 421 | Recycling | 18 | 1.4K | 130 | 120 |
| 423 | Molecular structure | 28 | 1.3K | 762 | 634 |
| 424 | Biomechanics | 38 | 1.3K | 291 | 310 |
| 425 | innovation | 16 | 1.3K | 137 | 184 |
| 426 | Health promotion | 50 | 1.3K | 251 | 345 |
| 427 | hazard mitigation | 44 | 1.3K | 48 | 79 |
| 429 | Tropical Medicine | 40 | 1.3K | 349 | 242 |
| 430 | Cognitive Science | 38 | 1.3K | 269 | 380 |
| 431 | mammals | 62 | 1.3K | 85 | 114 |
| 432 | Organizational Behavior | 24 | 1.3K | 125 | 146 |
| 433 | Hemodynamics | 16 | 1.3K | 283 | 211 |
| 434 | Bioinformatics | 19 | 1.3K | 886 | 695 |
| 435 | Europe | 55 | 1.3K | 738 | 691 |
| 438 | Neuromuscular diseases | 23 | 1.3K | 192 | 131 |
| 439 | natural disasters | 45 | 1.3K | 100 | 174 |
| 440 | Algae | 40 | 1.3K | 119 | 148 |
| 441 | Combinatorial chemistry | 26 | 1.2K | 169 | 191 |
| 442 | Photochemistry | 31 | 1.2K | 396 | 307 |
| 443 | Spine | 21 | 1.2K | 263 | 213 |
| 445 | Soil biology | 19 | 1.2K | 367 | 352 |
| 446 | Growth | 25 | 1.2K | 454 | 580 |
| 448 | Nuclear Chemistry | 40 | 1.2K | 212 | 103 |
| 448 | Learning disabilities | 34 | 1.2K | 161 | 122 |
| 450 | Asia | 39 | 1.2K | 554 | 268 |
| 452 | Petrology | 19 | 1.2K | 441 | 327 |
| 454 | Matroids | 52 | 1.2K | 8 | 13 |
| 455 | older people | 113 | 1.2K | 154 | 200 |
| 456 | Petroleum Geology | 25 | 1.2K | 128 | 95 |
| 457 | Developing countries | 32 | 1.2K | 577 | 470 |
| 459 | Building | 41 | 1.2K | 97 | 44 |
| 460 | Natural resources | 35 | 1.2K | 104 | 140 |
| 462 | Climate change | 21 | 1.2K | 416 | 798 |
| 463 | Therapeutics | 29 | 1.2K | 591 | 644 |
| 464 | Family | 66 | 1.2K | 98 | 173 |
| 466 | Drug design | 21 | 1.2K | 543 | 349 |
| 466 | energy resources | 22 | 1.2K | 402 | 500 |
| 468 | Fish diseases | 30 | 1.2K | 16 | 13 |
| 471 | Eutrophication | 19 | 1.2K | 438 | 806 |
| 473 | Parasites | 35 | 1.2K | 347 | 290 |
| 474 | Solid State Chemistry | 48 | 1.1K | 598 | 572 |
| 474 | Quantum theory | 52 | 1.1K | 90 | 117 |
| 476 | medical education | 46 | 1.1K | 409 | 402 |
| 477 | Chronic diseases | 23 | 1.1K | 229 | 317 |
| 478 | Conservation Biology | 31 | 1.1K | 247 | 341 |
| 479 | economic policy | 58 | 1.1K | 399 | 381 |
| 480 | Strategic planning | 14 | 1.1K | 231 | 100 |
| 481 | Population | 27 | 1.1K | 232 | 149 |
| 482 | Veterinary Immunology | 54 | 1.1K | 37 | 53 |
| 482 | Hormones | 30 | 1.1K | 371 | 409 |
| 484 | Seaweed | 35 | 1.1K | 80 | 124 |
| 485 | Telecommunication | 30 | 1.1K | 623 | 322 |
| 485 | Hazardous waste | 41 | 1.1K | 56 | 198 |
| 487 | Child welfare | 59 | 1.1K | 119 | 167 |
| 487 | mass transfer | 43 | 1.1K | 304 | 414 |
| 489 | Animal ecology | 36 | 1.1K | 290 | 329 |
| 490 | Transplantation | 17 | 1.1K | 654 | 530 |
| 491 | industrial waste | 62 | 1.1K | 15 | 192 |
| 492 | Mental Health Services | 43 | 1.1K | 223 | 210 |
| 493 | Highway Engineering | 35 | 1.1K | 41 | 26 |
| 494 | organizational effectiveness | 37 | 1.1K | 17 | 27 |
| 496 | Anxiety | 19 | 1.1K | 164 | 194 |
| 497 | Economic planning | 22 | 1.0K | 56 | 37 |
| 500 | Anxiety Disorders | 18 | 1.0K | 171 | 197 |
| 502 | Leadership | 12 | 1.0K | 136 | 128 |
| 503 | Food Security | 2 | 1.0K | 255 | 17 |
| 504 | Labor Economics | 39 | 1.0K | 28 | 70 |
| 505 | Antioxidants | 23 | 1.0K | 127 | 268 |
| 506 | disease vectors | 26 | 1.0K | 217 | 176 |
| 507 | Oral communication | 76 | 1.0K | 4 | 31 |
| 508 | Documentation | 118 | 1.0K | 5 | 45 |
| 509 | micromechanics | 34 | 999 | 75 | 90 |
| 510 | Mental Health | 44 | 994 | 300 | 304 |
| 511 | Ethnology | 39 | 992 | 262 | 152 |
| 513 | Atmospheric Physics | 24 | 976 | 674 | 661 |
| 514 | Adolescent Psychology | 28 | 974 | 197 | 212 |
| 515 | Fishery management | 49 | 972 | 117 | 156 |
| 516 | adolescence | 40 | 971 | 147 | 248 |
| 517 | Nanoelectronics | 24 | 961 | 209 | 67 |
| 520 | pain management | 17 | 955 | 200 | 103 |
| 522 | Human Capital | 34 | 951 | 8 | 13 |
| 523 | Semiconductors | 43 | 949 | 442 | 348 |
| 524 | Membranes | 27 | 946 | 594 | 716 |
| 527 | urban population | 21 | 934 | 36 | 76 |
| 528 | Hydrodynamics | 24 | 927 | 126 | 122 |
| 529 | Regional Development | 14 | 923 | 59 | 19 |
| 529 | Development planning | 14 | 923 | 38 | 16 |
| 529 | Marine resources | 32 | 923 | 65 | 76 |
| 532 | Auditing | 27 | 919 | 28 | 44 |
| 532 | Semiconductor industry | 17 | 919 | 201 | 50 |
| 534 | Communication in medicine | 26 | 918 | 115 | 90 |
| 534 | China | 45 | 918 | 622 | 636 |
| 534 | DNA polymerases | 9 | 918 | 253 | 306 |
| 537 | Tourism | 16 | 912 | 651 | 514 |
| 538 | Aquatic animals | 30 | 910 | 16 | 12 |
| 540 | Restoration Ecology | 23 | 907 | 63 | 65 |
| 541 | movement | 13 | 905 | 82 | 38 |
| 542 | crime | 39 | 900 | 109 | 119 |
| 543 | North America | 34 | 892 | 157 | 111 |
| 545 | Australia | 24 | 887 | 607 | 326 |
| 547 | Host-parasite interactions | 16 | 883 | 584 | 784 |
| 548 | Carbon | 12 | 879 | 719 | 562 |
| 549 | Quantitative Research | 31 | 878 | 21 | 44 |
| 549 | city planning | 43 | 878 | 289 | 348 |
| 551 | Magnetic Materials | 15 | 867 | 704 | 396 |
| 551 | foreign exchange | 9 | 867 | 151 | 61 |
| 554 | natural products | 21 | 865 | 608 | 414 |
| 555 | protein | 37 | 864 | 265 | 406 |
| 558 | natural gas | 50 | 858 | 42 | 73 |
| 559 | environmental exposure | 21 | 857 | 635 | 558 |
| 560 | chronic disease | 24 | 855 | 65 | 67 |
| 561 | Pesticides | 30 | 853 | 91 | 68 |
| 562 | Chemical analysis | 29 | 851 | 264 | 221 |
| 563 | probabilities | 51 | 850 | 243 | 196 |
| 565 | consumer behavior | 19 | 847 | 111 | 132 |
| 566 | Cytogenetics | 14 | 845 | 877 | 884 |
| 567 | Post-traumatic stress disorder | 22 | 841 | 219 | 232 |
| 568 | Plant breeding | 36 | 832 | 142 | 162 |
| 569 | language | 42 | 829 | 106 | 197 |
| 570 | radioactive waste | 26 | 827 | 82 | 256 |
| 571 | Energy Harvesting | 4 | 825 | 435 | 235 |
| 571 | psychopathology | 13 | 825 | 131 | 110 |
| 573 | Functional Genomics | 15 | 822 | 75 | 71 |
| 573 | baking | 10 | 822 | 92 | 35 |
| 575 | Medical Anthropology | 23 | 818 | 392 | 515 |
| 576 | industrial relations | 43 | 816 | 119 | 130 |
| 577 | Family Therapy | 43 | 813 | 113 | 130 |
| 578 | Groundwater | 35 | 805 | 114 | 124 |
| 579 | histological techniques | 36 | 801 | 83 | 235 |
| 582 | Enteral nutrition | 13 | 792 | 433 | 353 |
| 583 | Coral reef biology | 14 | 790 | 32 | 34 |
| 584 | Consumer education | 12 | 789 | 75 | 48 |
| 584 | government | 41 | 789 | 106 | 128 |
| 586 | Youth | 29 | 787 | 126 | 187 |
| 588 | Renewable Energy Sources | 17 | 784 | 1109 | 1475 |
| 589 | cell membrane | 19 | 782 | 232 | 221 |
| 590 | forest policy | 37 | 780 | 46 | 52 |
| 592 | Educational Technology | 31 | 776 | 284 | 297 |
| 593 | Lightweight concrete | 3 | 770 | 433 | 158 |
| 594 | wetland management | 35 | 766 | 4 | 7 |
| 595 | Energy metabolism | 18 | 765 | 256 | 254 |
| 596 | Risk Management | 20 | 764 | 150 | 137 |
| 597 | Inflammation | 24 | 763 | 323 | 427 |
| 599 | Emotions | 18 | 761 | 175 | 218 |
| 599 | Vaccines | 25 | 761 | 695 | 719 |
| 601 | Marine Meteorology | 17 | 757 | 169 | 165 |
| 601 | Allergy | 23 | 757 | 519 | 913 |
| 603 | peace | 23 | 753 | 110 | 128 |
| 605 | Elderly | 93 | 749 | 141 | 142 |
| 606 | Organizational learning | 20 | 747 | 43 | 23 |
| 606 | global environmental change | 12 | 747 | 380 | 360 |
| 608 | Quality of life | 13 | 743 | 681 | 498 |
| 610 | Politics | 41 | 740 | 79 | 98 |
| 613 | Social Networks | 10 | 738 | 79 | 62 |
| 616 | Nonlinear Dynamics | 37 | 732 | 736 | 863 |
| 618 | Library Science | 81 | 727 | 82 | 76 |
| 619 | Computer-Aided Design | 34 | 726 | 187 | 269 |
| 620 | Freeze-Drying | 36 | 725 | 43 | 49 |
| 620 | Hypothermia | 36 | 725 | 43 | 49 |
| 620 | Freeze Drying | 36 | 725 | 43 | 49 |
| 623 | Chromosomes | 34 | 717 | 181 | 371 |
| 625 | sustainability | 10 | 710 | 352 | 326 |
| 626 | Bioinorganic chemistry | 36 | 707 | 316 | 426 |
| 627 | Heart Failure | 6 | 706 | 345 | 183 |
| 628 | Bioelectronics | 8 | 705 | 696 | 569 |
| 629 | Patient education | 8 | 702 | 407 | 228 |
| 630 | Crisis management | 13 | 701 | 13 | 8 |
| 631 | Radiation effects | 20 | 697 | 103 | 143 |
| 633 | Radiobiology | 40 | 693 | 604 | 738 |
| 634 | food contamination | 23 | 692 | 212 | 140 |
| 635 | Microcirculation | 28 | 681 | 48 | 93 |
| 637 | Venture Capital | 5 | 677 | 199 | 209 |
| 638 | drugs | 29 | 674 | 687 | 802 |
| 639 | Cognitive Therapy | 27 | 673 | 121 | 151 |
| 641 | Biometrics | 44 | 668 | 209 | 379 |
| 642 | environmental indicators | 16 | 667 | 349 | 351 |
| 642 | Soil ecology | 12 | 667 | 338 | 288 |
| 644 | Microscopy | 40 | 666 | 293 | 393 |
| 645 | health behavior | 26 | 663 | 273 | 316 |
| 647 | Atmospheric Chemistry | 11 | 660 | 612 | 591 |
| 649 | health planning | 23 | 658 | 697 | 542 |
| 651 | Nutrition physiology | 15 | 656 | 250 | 236 |
| 652 | Women's health | 32 | 654 | 252 | 327 |
| 653 | Educational evaluation | 12 | 652 | 40 | 17 |
| 654 | Molecular Spectroscopy | 22 | 649 | 605 | 487 |
| 654 | eugenics | 32 | 649 | 81 | 121 |
| 657 | sedimentary basins | 17 | 644 | 34 | 38 |
| 658 | Hematopoietic stem cell transplantation | 15 | 643 | 92 | 110 |
| 659 | clay | 24 | 639 | 131 | 227 |
| 660 | Physical fitness | 23 | 637 | 284 | 346 |
| 661 | mutation | 30 | 636 | 103 | 253 |
| 662 | Socialization | 23 | 633 | 104 | 184 |
| 663 | Diagnostic Imaging | 25 | 624 | 716 | 858 |
| 663 | Food additives | 20 | 624 | 374 | 449 |
| 666 | Oxidation-reduction | 14 | 623 | 317 | 515 |
| 667 | child abuse | 15 | 619 | 343 | 342 |
| 668 | Probability | 15 | 616 | 203 | 158 |
| 669 | Chromatographic analysis | 27 | 615 | 553 | 532 |
| 670 | Genetic therapy | 18 | 609 | 534 | 673 |
| 671 | embryonic development | 19 | 606 | 84 | 102 |
| 673 | nuclear astrophysics | 13 | 604 | 194 | 170 |
| 674 | Ecosystem management | 15 | 600 | 240 | 236 |
| 674 | computer networks | 39 | 600 | 488 | 770 |
| 676 | Financial management | 13 | 592 | 171 | 178 |
| 677 | economic conditions | 7 | 591 | 418 | 170 |
| 678 | Emerging infectious diseases | 9 | 590 | 120 | 69 |
| 679 | Risk | 11 | 589 | 260 | 193 |
| 680 | Economic Thought | 6 | 588 | 194 | 149 |
| 681 | Sarcopenia | 10 | 585 | 131 | 162 |
| 682 | structural stability | 18 | 583 | 111 | 107 |
| 682 | Disease | 6 | 583 | 205 | 640 |
| 685 | biological invasions | 21 | 581 | 105 | 174 |
| 686 | motor skills | 19 | 579 | 28 | 43 |
| 687 | Industrial Microbiology | 15 | 578 | 877 | 965 |
| 688 | mutagens | 17 | 577 | 303 | 452 |
| 689 | Chromatography | 21 | 575 | 575 | 504 |
| 691 | Consciousness | 35 | 568 | 24 | 114 |
| 692 | Depression | 8 | 567 | 202 | 210 |
| 693 | Geomagnetism | 16 | 558 | 327 | 247 |
| 694 | coal | 25 | 557 | 469 | 766 |
| 696 | Neuroimmunology | 14 | 556 | 300 | 365 |
| 697 | Labor Unions | 34 | 555 | 9 | 3 |
| 699 | Cerebral cortex | 11 | 551 | 568 | 567 |
| 700 | energy conservation | 22 | 550 | 558 | 952 |
| 702 | Textile industry | 32 | 546 | 115 | 84 |
| 703 | glycoproteins | 8 | 545 | 267 | 193 |
| 703 | Glycoconjugates | 8 | 545 | 267 | 193 |
| 703 | glycolipids | 8 | 545 | 267 | 193 |
| 707 | Calculus of Variations | 19 | 542 | 131 | 69 |
| 708 | violence | 25 | 538 | 255 | 348 |
| 709 | Carbohydrates | 9 | 537 | 219 | 166 |
| 712 | speech therapy | 36 | 532 | 52 | 102 |
| 712 | Oligosaccharide | 7 | 532 | 177 | 135 |
| 714 | Gene expression regulation | 18 | 527 | 356 | 574 |
| 714 | internet | 27 | 527 | 242 | 312 |
| 716 | Digestive system diseases | 21 | 526 | 350 | 407 |
| 717 | DNA repair | 15 | 525 | 88 | 99 |
| 719 | Crystallography | 108 | 523 | 111 | 409 |
| 719 | construction | 5 | 523 | 133 | 42 |
| 721 | gene therapy | 14 | 522 | 572 | 704 |
| 721 | diseases | 4 | 522 | 301 | 686 |
| 725 | Climate | 14 | 520 | 198 | 213 |
| 726 | Neurolinguistics | 22 | 517 | 82 | 173 |
| 727 | Wildlife management | 46 | 516 | 92 | 174 |
| 729 | Mechanics | 30 | 512 | 286 | 340 |
| 729 | consumers | 23 | 512 | 33 | 93 |
| 729 | world | 15 | 512 | 271 | 417 |
| 732 | Stochastic Processes | 25 | 511 | 177 | 155 |
| 732 | language therapy | 31 | 511 | 10 | 30 |
| 734 | Personality Disorders | 9 | 510 | 131 | 108 |
| 734 | irrigation | 33 | 510 | 40 | 69 |
| 736 | atmosphere | 10 | 504 | 417 | 276 |
| 737 | biopolymers | 18 | 500 | 491 | 535 |
| 738 | population policy | 15 | 499 | 31 | 22 |
| 740 | emergency management | 27 | 496 | 94 | 189 |
| 740 | biological factors | 15 | 496 | 884 | 813 |
| 740 | race relations | 14 | 496 | 214 | 126 |
| 743 | Birth control | 8 | 493 | 248 | 157 |
| 744 | ethnic groups | 10 | 492 | 129 | 52 |
| 745 | Real Estate Investment | 17 | 480 | 35 | 23 |
| 746 | Genetic regulation | 15 | 479 | 529 | 846 |
| 748 | Soil fertility | 8 | 478 | 188 | 163 |
| 749 | drug development | 12 | 475 | 510 | 939 |
| 750 | Social Change | 8 | 473 | 559 | 509 |
| 750 | Human biology | 31 | 473 | 91 | 155 |
| 752 | DNA | 19 | 472 | 100 | 114 |
| 753 | Fuzzy systems | 6 | 470 | 1321 | 346 |
| 756 | drainage | 31 | 466 | 34 | 36 |
| 758 | role | 21 | 463 | 77 | 178 |
| 758 | migration policy | 6 | 463 | 128 | 64 |
| 760 | motivation | 12 | 457 | 107 | 128 |
| 760 | ethanol | 29 | 457 | 71 | 159 |
| 762 | Plant genetic engineering | 13 | 455 | 427 | 540 |
| 764 | Atomic spectroscopy | 18 | 452 | 435 | 414 |
| 765 | vitamin C | 11 | 450 | 118 | 148 |
| 765 | vitamin E | 11 | 450 | 118 | 148 |
| 767 | immigration | 5 | 448 | 136 | 64 |
| 767 | Asylum seeker | 5 | 448 | 113 | 64 |
| 770 | Psychosomatic Medicine | 23 | 445 | 262 | 478 |
| 772 | Medical innovations | 5 | 444 | 1004 | 1060 |
| 774 | Chemical Oceanography | 12 | 442 | 137 | 194 |
| 774 | carcinogens | 16 | 442 | 390 | 593 |
| 776 | International security | 14 | 441 | 63 | 114 |
| 778 | Health insurance | 4 | 439 | 467 | 221 |
| 779 | Nanostructures | 15 | 437 | 1051 | 1227 |
| 779 | Reading | 31 | 437 | 95 | 193 |
| 781 | Genes | 19 | 434 | 357 | 447 |
| 782 | Aquatic ecology | 23 | 433 | 225 | 374 |
| 783 | freshwater biology | 14 | 432 | 387 | 398 |
| 785 | Quantum Communication | 8 | 431 | 89 | 88 |
| 785 | Primates | 14 | 431 | 330 | 287 |
| 787 | Phytotherapy | 13 | 430 | 297 | 283 |
| 788 | Thorax | 16 | 427 | 179 | 270 |
| 789 | reasoning | 3 | 425 | 416 | 76 |
| 790 | Scandinavia | 19 | 424 | 141 | 176 |
| 792 | Proteome | 13 | 423 | 628 | 800 |
| 792 | air | 7 | 423 | 108 | 108 |
| 794 | Analytical Toxicology | 16 | 422 | 57 | 53 |
| 794 | cloning | 11 | 422 | 346 | 589 |
| 796 | Bones | 9 | 421 | 653 | 575 |
| 797 | Remote Sensing | 26 | 420 | 361 | 380 |
| 797 | listening | 14 | 420 | 3 | 2 |
| 800 | Immunopharmacology | 16 | 419 | 347 | 410 |
| 801 | Political Sociology | 17 | 418 | 124 | 139 |
| 802 | Imagination | 28 | 417 | 5 | 4 |
| 804 | Consumer Protection | 9 | 415 | 61 | 50 |
| 805 | human development | 25 | 413 | 182 | 391 |
| 807 | Communication in marketing | 14 | 412 | 18 | 25 |
| 808 | Adult Education | 27 | 411 | 97 | 80 |
| 808 | biological monitoring | 13 | 411 | 129 | 159 |
| 810 | Human evolution | 8 | 409 | 274 | 265 |
| 811 | sex crimes | 17 | 405 | 189 | 203 |
| 812 | Carcinogenesis | 12 | 403 | 506 | 652 |
| 813 | peptides | 12 | 399 | 379 | 214 |
| 814 | drug evaluation | 10 | 397 | 764 | 519 |
| 815 | voice | 19 | 395 | 121 | 130 |
| 815 | DNS | 12 | 395 | 170 | 153 |
| 817 | international cooperation | 13 | 394 | 200 | 237 |
| 818 | Immunopathology | 22 | 392 | 559 | 890 |
| 818 | school sports | 6 | 392 | 76 | 30 |
| 820 | Research Design | 26 | 391 | 322 | 668 |
| 821 | Statistical Mechanics | 23 | 390 | 362 | 325 |
| 822 | Quantum Optics | 15 | 387 | 371 | 323 |
| 823 | Entropy | 10 | 386 | 471 | 204 |
| 824 | Mixed methods research | 4 | 385 | 33 | 29 |
| 825 | cell interaction | 17 | 384 | 452 | 709 |
| 826 | biological clocks | 10 | 383 | 152 | 120 |
| 826 | Radiation | 31 | 383 | 624 | 992 |
| 826 | Exercise therapy | 5 | 383 | 284 | 51 |
| 826 | Autoimmunity | 6 | 383 | 646 | 549 |
| 826 | circadian rhythm | 10 | 383 | 152 | 120 |
| 826 | conflict management | 14 | 383 | 73 | 103 |
| 834 | War and Society | 10 | 382 | 95 | 124 |
| 834 | Animal welfare | 8 | 382 | 148 | 82 |
| 834 | warfare | 10 | 382 | 132 | 154 |
| 838 | income distribution | 3 | 378 | 151 | 71 |
| 839 | Forecasting | 6 | 377 | 358 | 197 |
| 839 | Zoonoses | 12 | 377 | 87 | 102 |
| 841 | Semigroups | 58 | 374 | 2 | 6 |
| 841 | Human Resources | 21 | 374 | 63 | 211 |
| 843 | Soft Condensed Matter | 15 | 372 | 521 | 585 |
| 844 | Dynamics | 23 | 371 | 564 | 553 |
| 845 | visualization | 52 | 370 | 215 | 306 |
| 846 | Marriage | 29 | 369 | 78 | 181 |
| 847 | Laser Spectroscopy | 13 | 368 | 380 | 304 |
| 848 | educational planning | 5 | 366 | 294 | 151 |
| 848 | Extreme environments | 4 | 366 | 207 | 88 |
| 850 | exobiology | 8 | 365 | 182 | 208 |
| 852 | Political Participation | 13 | 364 | 98 | 107 |
| 852 | election law | 14 | 364 | 66 | 80 |
| 852 | Elections | 13 | 364 | 125 | 95 |
| 852 | Voting | 13 | 364 | 62 | 77 |
| 856 | Religion | 34 | 363 | 214 | 94 |
| 858 | Plant tissue culture | 12 | 358 | 299 | 318 |
| 860 | Crystal growth | 14 | 357 | 439 | 474 |
| 860 | clay minerals | 17 | 357 | 62 | 132 |
| 862 | Ceramic materials | 8 | 355 | 893 | 572 |
| 862 | data collection | 9 | 355 | 584 | 674 |
| 864 | Animal breeding | 18 | 353 | 315 | 363 |
| 865 | Antigens | 18 | 352 | 355 | 523 |
| 867 | prostaglandins | 17 | 350 | 150 | 211 |
| 868 | Reproductive toxicology | 10 | 348 | 218 | 240 |
| 869 | Magnetohydrodynamics | 17 | 347 | 137 | 150 |
| 870 | Physical organic chemistry | 15 | 345 | 638 | 663 |
| 871 | Happiness | 6 | 344 | 233 | 145 |
| 871 | Plant cell culture | 8 | 344 | 381 | 329 |
| 871 | Suicide | 30 | 344 | 73 | 250 |
| 874 | Functional foods | 11 | 340 | 114 | 116 |
| 875 | cytokines | 14 | 338 | 590 | 836 |
| 876 | sports administration | 17 | 336 | 49 | 76 |
| 876 | Student Health Services | 17 | 336 | 68 | 94 |
| 878 | Memory disorders | 14 | 334 | 48 | 95 |
| 880 | Geodynamics | 15 | 333 | 394 | 544 |
| 883 | Bacteria | 10 | 332 | 160 | 312 |
| 884 | Minerals | 12 | 331 | 261 | 269 |
| 885 | Development | 7 | 330 | 550 | 520 |
| 885 | Economic Assistance | 7 | 330 | 467 | 479 |
| 885 | Nitric oxide | 14 | 330 | 69 | 92 |
| 888 | correctional psychology | 8 | 329 | 124 | 106 |
| 889 | Land use | 16 | 328 | 377 | 610 |
| 891 | Southern states | 52 | 324 | 18 | 46 |
| 894 | Computational Fluid Dynamics | 13 | 322 | 247 | 246 |
| 895 | health services accessibility | 9 | 320 | 539 | 456 |
| 895 | Social problems | 32 | 320 | 79 | 325 |
| 897 | Transport | 21 | 319 | 137 | 377 |
| 897 | Sea | 21 | 319 | 117 | 304 |
| 897 | Fishery resources | 21 | 319 | 137 | 327 |
| 897 | bees | 17 | 319 | 100 | 175 |
| 903 | Production Control | 10 | 318 | 73 | 110 |
| 903 | Geobiology | 17 | 318 | 140 | 234 |
| 906 | Neuropharmacology | 7 | 316 | 376 | 323 |
| 906 | African Americans | 20 | 316 | 25 | 32 |
| 908 | Circadian rhythms | 5 | 314 | 203 | 137 |
| 908 | biological rhythms | 5 | 314 | 286 | 148 |
| 910 | Neurovirology | 13 | 313 | 87 | 113 |
| 911 | Adaptive control systems | 4 | 311 | 526 | 141 |
| 912 | Cognitive neuroscience | 14 | 310 | 480 | 804 |
| 913 | Quantum Chemistry | 55 | 309 | 62 | 291 |
| 913 | Steroids | 17 | 309 | 419 | 634 |
| 915 | Organometallic compounds | 8 | 306 | 846 | 652 |
| 916 | Organometallic chemistry | 13 | 304 | 1048 | 878 |
| 916 | mycoses | 9 | 304 | 514 | 817 |
| 918 | Clinical Pharmacology | 15 | 302 | 756 | 940 |
| 919 | Primary health care | 14 | 301 | 885 | 948 |
| 920 | Computer Literacy | 12 | 300 | 44 | 78 |
| 921 | Number Theory | 38 | 299 | 125 | 125 |
| 921 | Glass | 10 | 299 | 702 | 725 |
| 921 | pottery | 10 | 299 | 678 | 716 |
| 926 | civil service | 5 | 297 | 304 | 170 |
| 927 | Magnetic Resonance Spectroscopy | 18 | 296 | 549 | 658 |
| 929 | Performance | 14 | 295 | 77 | 156 |
| 930 | DNA methylation | 8 | 294 | 131 | 191 |
| 931 | Pesticide residues | 7 | 293 | 20 | 37 |
| 932 | Microfabrication | 14 | 292 | 95 | 141 |
| 932 | Cheminformatics | 4 | 292 | 322 | 301 |
| 934 | Juvenile delinquency | 17 | 291 | 92 | 120 |
| 935 | technical education | 5 | 288 | 397 | 146 |
| 936 | Industrial Safety | 26 | 287 | 239 | 540 |
| 936 | analysis | 12 | 287 | 150 | 227 |
| 938 | Waste management | 21 | 286 | 368 | 597 |
| 939 | Social interaction | 14 | 285 | 88 | 154 |
| 940 | water resources | 11 | 284 | 71 | 61 |
| 942 | Algal blooms | 7 | 282 | 182 | 238 |
| 942 | Cyanobacteria | 7 | 282 | 182 | 238 |
| 942 | microalgae | 7 | 282 | 182 | 238 |
| 946 | Total Quality Management | 8 | 281 | 205 | 147 |
| 948 | Herbal medicine | 6 | 278 | 491 | 433 |
| 948 | Nonlinear systems | 15 | 278 | 194 | 238 |
| 950 | Travel | 15 | 276 | 288 | 323 |
| 951 | Behavioral research | 3 | 275 | 575 | 103 |
| 952 | Cell communication | 11 | 274 | 364 | 543 |
| 953 | ethnicity | 26 | 273 | 121 | 192 |
| 954 | Informatics | 7 | 272 | 603 | 556 |
| 956 | Simulation Methods | 24 | 270 | 124 | 326 |
| 957 | Wireless Communication Systems | 24 | 269 | 654 | 921 |
| 959 | Respiratory system | 8 | 267 | 397 | 431 |
| 959 | wood | 11 | 267 | 226 | 184 |
| 961 | Fish | 2 | 265 | 566 | 93 |
| 962 | Antibodies | 12 | 264 | 333 | 462 |
| 963 | deviant behavior | 19 | 263 | 51 | 89 |
| 964 | Plant Biotechnology | 5 | 262 | 692 | 522 |
| 964 | weather forecasting | 7 | 262 | 130 | 128 |
| 964 | Fluorescence | 12 | 262 | 102 | 90 |
| 967 | bioclimatology | 19 | 260 | 213 | 481 |
| 967 | calcification | 8 | 260 | 354 | 418 |
| 967 | Porous materials | 14 | 260 | 209 | 228 |
| 970 | Neural circuitry | 7 | 259 | 1425 | 1334 |
| 971 | Criminal investigation | 5 | 258 | 149 | 50 |
| 972 | Fisheries Law | 5 | 257 | 127 | 123 |
| 972 | fisheries management | 5 | 257 | 127 | 123 |
| 972 | Fertilizers | 12 | 257 | 154 | 205 |
| 972 | at-risk youth | 4 | 257 | 83 | 92 |
| 976 | drug abuse | 17 | 256 | 232 | 340 |
| 978 | Freshwater invertebrates | 5 | 255 | 174 | 158 |
| 978 | complementary therapies | 10 | 255 | 1190 | 1154 |
| 980 | Yeast | 9 | 254 | 217 | 300 |
| 981 | homosexuality | 13 | 253 | 122 | 198 |
| 982 | nuclear magnetic resonance | 18 | 252 | 494 | 690 |
| 985 | Human-Computer Interaction | 11 | 250 | 755 | 856 |
| 985 | dietary supplements | 8 | 250 | 419 | 478 |
| 987 | child mental health | 15 | 249 | 145 | 210 |
| 988 | Plant Morphology | 4 | 248 | 575 | 242 |
| 989 | Petroleum | 29 | 247 | 55 | 80 |
| 990 | Business communication | 23 | 246 | 17 | 53 |
| 991 | Feminism | 6 | 244 | 405 | 194 |
| 992 | Clinical Immunology | 10 | 243 | 892 | 1037 |
| 993 | community development | 15 | 242 | 177 | 254 |
| 993 | Mutagenesis | 11 | 242 | 145 | 186 |
| 995 | Photobiology | 6 | 241 | 1119 | 855 |
| 996 | healthcare disparities | 14 | 240 | 173 | 243 |
| 996 | ports | 19 | 240 | 28 | 78 |
| 998 | shellfish | 10 | 237 | 64 | 54 |
| 999 | machinery | 12 | 235 | 311 | 336 |
| 1000 | Metallography | 5 | 234 | 670 | 449 |
| 1001 | cell adhesion molecules | 9 | 233 | 233 | 353 |
| 1002 | Group decision making | 15 | 231 | 126 | 248 |
| 1002 | animals | 11 | 231 | 692 | 644 |
| 1004 | Protozoa | 12 | 230 | 158 | 283 |
| 1004 | Beetles | 37 | 230 | 8 | 7 |
| 1006 | Urban Geography | 7 | 229 | 115 | 99 |
| 1008 | sexual behavior | 15 | 228 | 223 | 441 |
| 1010 | Fashion | 9 | 227 | 45 | 27 |
| 1011 | Public Speaking | 42 | 226 | 14 | 39 |
| 1011 | Bacterial infections | 17 | 226 | 284 | 1008 |
| 1015 | economic forecasting | 4 | 225 | 266 | 219 |
| 1015 | Jurisprudence | 15 | 225 | 406 | 493 |
| 1017 | Molecular recognition | 11 | 224 | 40 | 91 |
| 1017 | food handling | 12 | 224 | 343 | 685 |
| 1017 | Communication in politics | 8 | 224 | 89 | 61 |
| 1017 | educational innovations | 8 | 224 | 262 | 249 |
| 1021 | Socioeconomic Factors | 14 | 222 | 262 | 472 |
| 1021 | labor | 9 | 222 | 140 | 161 |
| 1023 | Waterways | 21 | 221 | 10 | 20 |
| 1023 | Harbors | 21 | 221 | 10 | 23 |
| 1025 | Communication and Culture | 17 | 220 | 48 | 65 |
| 1025 | Histocompatibility Testing | 8 | 220 | 385 | 299 |
| 1025 | toxicity testing | 5 | 220 | 627 | 485 |
| 1028 | Solar System | 17 | 219 | 425 | 679 |
| 1031 | Electrophysiology | 12 | 218 | 649 | 714 |
| 1033 | industrial hygiene | 25 | 216 | 274 | 457 |
| 1034 | Research methodology | 1 | 215 | 241 | 55 |
| 1034 | animal diseases | 12 | 215 | 212 | 294 |
| 1034 | Stress | 7 | 215 | 117 | 138 |
| 1037 | Hospitals | 26 | 214 | 190 | 450 |
| 1037 | working class | 5 | 214 | 152 | 164 |
| 1037 | disaster relief | 9 | 214 | 64 | 93 |
| 1040 | Dementia | 25 | 212 | 599 | 881 |
| 1041 | Alzheimer's disease | 26 | 211 | 600 | 983 |
| 1042 | Decision Support Systems | 14 | 210 | 49 | 80 |
| 1042 | Public Choice | 12 | 210 | 122 | 208 |
| 1044 | Herpetology | 16 | 209 | 83 | 92 |
| 1044 | Paleoceanography | 4 | 209 | 193 | 252 |
| 1047 | Kinetics | 9 | 208 | 241 | 217 |
| 1047 | Environmental risk assessment | 6 | 208 | 249 | 189 |
| 1047 | software | 12 | 208 | 344 | 736 |
| 1051 | Environmental Geochemistry | 5 | 206 | 373 | 232 |
| 1055 | Algorithms | 15 | 204 | 208 | 340 |
| 1055 | India | 6 | 204 | 1434 | 422 |
| 1057 | Forensic Psychology | 10 | 202 | 170 | 190 |
| 1057 | locomotion | 7 | 202 | 516 | 512 |
| 1057 | posture | 7 | 202 | 516 | 512 |
| 1057 | Multiple sclerosis | 4 | 202 | 647 | 262 |
| 1057 | gait | 7 | 202 | 516 | 512 |
| 1057 | walking | 7 | 202 | 516 | 512 |
| 1063 | Forensic Psychiatry | 10 | 201 | 301 | 314 |
| 1063 | Geothermal Energy | 5 | 201 | 177 | 137 |
| 1066 | Pharmacokinetics | 16 | 200 | 302 | 706 |
| 1066 | soil management | 8 | 200 | 315 | 495 |
| 1066 | Biomass | 8 | 200 | 324 | 634 |
| 1066 | carbon monoxide | 2 | 200 | 463 | 252 |
| 1066 | Kidney diseases | 6 | 200 | 887 | 879 |
| 1072 | Nonlinear functional analysis | 29 | 199 | 252 | 649 |
| 1073 | Measurement | 16 | 198 | 439 | 774 |
| 1073 | Nonprofit organizations | 5 | 198 | 239 | 165 |
| 1075 | Behaviorism | 7 | 196 | 26 | 11 |
| 1075 | Social policy | 21 | 196 | 279 | 515 |
| 1075 | environmental control | 5 | 196 | 159 | 143 |
| 1078 | Dance | 19 | 195 | 69 | 41 |
| 1080 | tillage | 6 | 194 | 290 | 419 |
| 1081 | Behavioral Genetics | 5 | 193 | 194 | 246 |
| 1081 | Cognitive Behavioral Therapy | 6 | 193 | 146 | 144 |
| 1083 | Futures | 12 | 190 | 87 | 160 |
| 1084 | Nanophotonics | 3 | 189 | 341 | 252 |
| 1086 | Multiphase Flow | 8 | 188 | 201 | 276 |
| 1087 | Organizational culture | 2 | 187 | 48 | 32 |
| 1087 | corporate culture | 2 | 187 | 275 | 92 |
| 1091 | agricultural policy | 8 | 185 | 110 | 287 |
| 1092 | Orthopedic Surgery | 8 | 184 | 619 | 692 |
| 1092 | Reptiles | 15 | 184 | 85 | 95 |
| 1094 | Greenhouse gases | 10 | 183 | 149 | 324 |
| 1096 | Water Purification | 14 | 182 | 440 | 684 |
| 1096 | Developmental Immunology | 9 | 182 | 427 | 651 |
| 1098 | Evolutionary Genetics | 6 | 181 | 466 | 483 |
| 1098 | Molecular Epidemiology | 6 | 181 | 466 | 483 |
| 1098 | Welfare Economics | 4 | 181 | 414 | 342 |
| 1102 | Dyslexia | 2 | 178 | 216 | 102 |
| 1103 | Japan | 9 | 176 | 1461 | 1228 |
| 1103 | weight loss | 7 | 176 | 88 | 74 |
| 1105 | Biological Systems | 5 | 175 | 595 | 455 |
| 1105 | Foraminifera | 5 | 175 | 53 | 47 |
| 1105 | Synapses | 3 | 175 | 337 | 264 |
| 1112 | Artificial Organs | 10 | 173 | 411 | 428 |
| 1112 | nuclear power | 11 | 173 | 273 | 203 |
| 1112 | Liposomes | 8 | 173 | 277 | 427 |
| 1112 | Lipid bilayers | 8 | 173 | 236 | 369 |
| 1112 | Blood vessels | 14 | 173 | 77 | 275 |
| 1117 | Transgenic plants | 6 | 172 | 327 | 446 |
| 1117 | gases | 6 | 172 | 19 | 16 |
| 1120 | Environmental Economics | 5 | 171 | 290 | 257 |
| 1121 | Nutritional support | 3 | 170 | 195 | 199 |
| 1121 | Writing | 7 | 170 | 140 | 176 |
| 1123 | Biochemical Genetics | 4 | 169 | 443 | 133 |
| 1124 | Microeconomics | 3 | 168 | 397 | 263 |
| 1124 | epilepsy | 3 | 168 | 1269 | 838 |
| 1124 | Medicinal plants | 2 | 168 | 2118 | 1402 |
| 1124 | Cardiovascular diseases | 10 | 168 | 1110 | 1370 |
| 1124 | Radioisotopes | 13 | 168 | 606 | 721 |
| 1124 | viral genetics | 3 | 168 | 427 | 647 |
| 1132 | Nonverbal Communication | 4 | 165 | 163 | 175 |
| 1134 | Structural health monitoring | 2 | 164 | 290 | 149 |
| 1134 | Geodesy | 6 | 164 | 538 | 502 |
| 1134 | nuclear magnetic resonance spectroscopy | 6 | 164 | 642 | 505 |
| 1137 | isomerism | 4 | 163 | 289 | 166 |
| 1137 | Chirality | 4 | 163 | 289 | 166 |
| 1139 | Chemical kinetics | 8 | 162 | 426 | 276 |
| 1139 | forestry | 7 | 162 | 152 | 175 |
| 1139 | libraries | 67 | 162 | 49 | 293 |
| 1142 | Comparative Advertising | 6 | 161 | 40 | 43 |
| 1143 | Social welfare | 16 | 160 | 187 | 333 |
| 1143 | questioning | 3 | 160 | 43 | 12 |
| 1147 | Knot Theory | 17 | 157 | 48 | 41 |
| 1147 | Echocardiography | 4 | 157 | 72 | 52 |
| 1149 | antibiotics | 2 | 156 | 620 | 309 |
| 1151 | Social Issues | 4 | 155 | 212 | 196 |
| 1151 | Leukemia | 6 | 155 | 1209 | 1325 |
| 1151 | particles | 13 | 155 | 339 | 685 |
| 1154 | Particle Physics | 7 | 154 | 586 | 483 |
| 1154 | soil pollution | 13 | 154 | 131 | 354 |
| 1156 | Pediatric Rheumatology | 2 | 153 | 398 | 144 |
| 1157 | Electrochemical Analysis | 16 | 152 | 660 | 1279 |
| 1157 | intergroup relations | 1 | 152 | 378 | 140 |
| 1161 | Genetic translocation | 4 | 151 | 177 | 167 |
| 1161 | plasmids | 4 | 151 | 177 | 167 |
| 1161 | Liquid chromatography | 13 | 151 | 170 | 208 |
| 1164 | Labor Supply | 6 | 150 | 21 | 49 |
| 1164 | Religion and Psychology | 8 | 150 | 243 | 218 |
| 1166 | Organizational change | 12 | 149 | 259 | 510 |
| 1166 | synthesis | 8 | 149 | 693 | 540 |
| 1168 | Electrons | 1 | 147 | 261 | 29 |
| 1169 | international trade | 8 | 146 | 372 | 482 |
| 1170 | Superconductors | 8 | 145 | 454 | 445 |
| 1170 | Endocrine glands | 3 | 145 | 309 | 536 |
| 1170 | Synchrotron Radiation | 9 | 145 | 195 | 261 |
| 1173 | Calorimetry | 7 | 144 | 801 | 739 |
| 1173 | Thermal analysis | 7 | 144 | 801 | 739 |
| 1175 | Heterocyclic compounds | 13 | 143 | 469 | 522 |
| 1177 | hydrocolloids | 5 | 142 | 518 | 846 |
| 1179 | Topology | 15 | 140 | 111 | 143 |
| 1179 | Differential Equations | 8 | 140 | 645 | 601 |
| 1179 | Emotion | 5 | 140 | 134 | 229 |
| 1179 | scientific societies | 13 | 140 | 356 | 760 |
| 1184 | Maternal health services | 11 | 139 | 171 | 372 |
| 1184 | Aggression | 5 | 139 | 365 | 478 |
| 1186 | Psychiatric hospitals | 19 | 138 | 112 | 283 |
| 1187 | Heat Exchangers | 10 | 137 | 656 | 1246 |
| 1187 | Community Colleges | 11 | 137 | 69 | 70 |
| 1187 | women | 13 | 137 | 292 | 379 |
| 1191 | Cell cycle | 7 | 136 | 183 | 265 |
| 1191 | cell proliferation | 7 | 136 | 209 | 289 |
| 1193 | residential treatment | 13 | 135 | 23 | 85 |
| 1193 | Leisure | 5 | 135 | 291 | 275 |
| 1195 | Methodology | 9 | 134 | 184 | 237 |
| 1196 | Catalysts | 10 | 133 | 325 | 547 |
| 1197 | Solar Energy | 5 | 132 | 1570 | 1850 |
| 1198 | public works | 9 | 131 | 35 | 58 |
| 1199 | Latin America | 30 | 130 | 419 | 580 |
| 1199 | planning | 9 | 130 | 344 | 463 |
| 1199 | Elementary particles | 2 | 130 | 246 | 280 |
| 1202 | wind erosion | 5 | 129 | 51 | 124 |
| 1203 | Microprocessors | 9 | 128 | 262 | 292 |
| 1203 | Autoantibodies | 2 | 128 | 943 | 776 |
| 1203 | Biomolecules | 3 | 128 | 527 | 587 |
| 1203 | Autoimmune diseases | 2 | 128 | 1011 | 823 |
| 1208 | Digital electronics | 20 | 127 | 45 | 101 |
| 1208 | health and race | 10 | 127 | 87 | 177 |
| 1211 | urban health | 1 | 126 | 658 | 307 |
| 1211 | biomedicine | 17 | 126 | 223 | 840 |
| 1213 | Sensor Networks | 6 | 125 | 124 | 137 |
| 1213 | Supramolecular chemistry | 2 | 125 | 368 | 84 |
| 1213 | Sites | 4 | 125 | 557 | 673 |
| 1216 | Infection control | 14 | 124 | 244 | 713 |
| 1219 | African American | 10 | 122 | 40 | 60 |
| 1221 | Zeolites | 6 | 121 | 692 | 1086 |
| 1221 | Employee rights | 4 | 121 | 56 | 43 |
| 1223 | Microbial Genetics | 4 | 120 | 333 | 379 |
| 1223 | Oxidative stress | 7 | 120 | 812 | 1600 |
| 1223 | Hydraulic machinery | 3 | 120 | 141 | 45 |
| 1223 | Animal genetics | 9 | 120 | 351 | 588 |
| 1223 | phytopathogenic bacteria | 3 | 120 | 290 | 354 |
| 1229 | Ecohydrology | 7 | 118 | 191 | 307 |
| 1229 | Metallic Glasses | 3 | 118 | 500 | 415 |
| 1229 | Water chemistry | 3 | 118 | 357 | 209 |
| 1232 | Career development | 8 | 117 | 185 | 252 |
| 1232 | pigments | 3 | 117 | 955 | 755 |
| 1235 | Molecular Imaging | 1 | 116 | 1378 | 924 |
| 1236 | Ecophysiology | 2 | 115 | 352 | 163 |
| 1236 | blood transfusion | 8 | 115 | 603 | 762 |
| 1236 | Freezing | 15 | 115 | 118 | 225 |
| 1240 | Immunotoxicology | 7 | 114 | 142 | 193 |
| 1240 | Urban Anthropology | 5 | 114 | 93 | 92 |
| 1240 | Employee selection | 8 | 114 | 45 | 115 |
| 1240 | Criminal behavior | 4 | 114 | 154 | 135 |
| 1244 | Biofeedback | 1 | 113 | 303 | 120 |
| 1244 | student | 10 | 113 | 12 | 44 |
| 1246 | Alternative Medicine | 6 | 112 | 1544 | 1890 |
| 1246 | Art | 11 | 112 | 195 | 53 |
| 1246 | Prisons | 5 | 112 | 251 | 168 |
| 1246 | weather | 8 | 112 | 302 | 614 |
| 1251 | Developed countries | 5 | 111 | 119 | 215 |
| 1252 | Job satisfaction | 1 | 110 | 246 | 201 |
| 1252 | psychophysics | 9 | 110 | 157 | 234 |
| 1252 | Work | 1 | 110 | 725 | 268 |
| 1252 | job stress | 1 | 110 | 246 | 201 |
| 1256 | Africa | 11 | 109 | 868 | 1091 |
| 1258 | Detectors | 8 | 108 | 517 | 547 |
| 1259 | Mobile genetic elements | 8 | 107 | 16 | 111 |
| 1259 | soil conservation | 8 | 107 | 426 | 840 |
| 1259 | Budget | 10 | 107 | 55 | 65 |
| 1259 | cardiac catheterization | 11 | 107 | 531 | 791 |
| 1259 | tomography | 3 | 107 | 501 | 350 |
| 1259 | amino acids | 7 | 107 | 339 | 697 |
| 1266 | Multicultural Education | 7 | 106 | 207 | 230 |
| 1266 | infrared radiation | 5 | 106 | 500 | 396 |
| 1266 | Bioremediation | 2 | 106 | 1272 | 957 |
| 1266 | Water quality | 2 | 106 | 358 | 158 |
| 1270 | collagen | 3 | 105 | 357 | 500 |
| 1271 | NMR | 3 | 104 | 670 | 386 |
| 1271 | magnetic resonance | 3 | 104 | 688 | 405 |
| 1273 | Marine Conservation | 5 | 103 | 42 | 15 |
| 1273 | Law of the Sea | 5 | 103 | 42 | 15 |
| 1273 | Broadcasting | 25 | 103 | 8 | 141 |
| 1273 | Educational measurement | 5 | 103 | 144 | 145 |
| 1273 | Culture techniques | 3 | 103 | 390 | 294 |
| 1279 | Qualitative Research | 2 | 102 | 712 | 433 |
| 1279 | Microfluidics | 5 | 102 | 151 | 233 |
| 1279 | Industrial Policy | 7 | 102 | 291 | 495 |
| 1279 | supercritical fluids | 5 | 102 | 303 | 460 |
| 1279 | environmental issues | 4 | 102 | 391 | 534 |
| 1284 | biofuels | 3 | 101 | 315 | 581 |
| 1284 | Radiotherapy | 18 | 101 | 127 | 274 |
| 1284 | Mass Media | 13 | 101 | 413 | 424 |
| 1287 | Synthetic biology | 5 | 100 | 254 | 361 |
| 1287 | Arthropods | 11 | 100 | 57 | 142 |
| 1289 | solar power | 1 | 98 | 1585 | 1150 |
| 1289 | solar cells | 1 | 98 | 1730 | 1267 |
| 1294 | Long-Term Care | 7 | 97 | 388 | 766 |
| 1294 | Long-term care facilities | 7 | 97 | 385 | 761 |
| 1296 | Electroconvulsive therapy | 2 | 96 | 165 | 86 |
| 1297 | Geosynthetics | 3 | 95 | 158 | 127 |
| 1297 | Amphibians | 10 | 95 | 111 | 140 |