| 1 | Physics | 7,082 | 659.5K | 27 | 24 |
| 2 | Astrophysics | 4,016 | 308.6K | 13 | 21 |
| 3 | Biology | 2,335 | 297.2K | 100 | 71 |
| 4 | Science | 2,394 | 296.4K | 109 | 70 |
| 5 | Spectrum analysis | 3,088 | 237.0K | 10 | 11 |
| 6 | Nuclear Physics | 4,324 | 180.4K | 7 | 11 |
| 7 | Chemistry | 1,850 | 165.9K | 199 | 113 |
| 8 | Natural history | 736 | 157.5K | 60 | 69 |
| 9 | Astronomy | 2,287 | 143.8K | 34 | 48 |
| 10 | Ecology | 1,371 | 122.5K | 60 | 40 |
| 11 | Condensed Matter | 2,538 | 109.6K | 13 | 22 |
| 12 | Solid State Physics | 2,583 | 108.0K | 17 | 22 |
| 13 | Geophysics | 1,987 | 98.8K | 17 | 17 |
| 14 | Quantum Gravity | 1,564 | 87.3K | 11 | 13 |
| 15 | Meteorology | 951 | 82.3K | 13 | 9 |
| 16 | Nanotechnology | 832 | 78.5K | 103 | 60 |
| 17 | Molecular Biology | 997 | 77.5K | 229 | 173 |
| 18 | Materials | 855 | 77.1K | 172 | 95 |
| 19 | Microbiology | 1,008 | 66.8K | 125 | 117 |
| 20 | Biotechnology | 675 | 64.6K | 104 | 51 |
| 21 | Statistical physics | 1,683 | 63.7K | 5 | 7 |
| 22 | Climatology | 520 | 60.1K | 16 | 9 |
| 23 | Pollution | 781 | 58.6K | 62 | 46 |
| 24 | Environment | 662 | 57.8K | 71 | 59 |
| 25 | Biochemistry | 1,265 | 55.8K | 309 | 267 |
| 26 | Bioengineering | 451 | 53.6K | 88 | 39 |
| 27 | United States | 1,779 | 52.5K | 44 | 48 |
| 28 | Medicine | 1,044 | 51.2K | 283 | 269 |
| 29 | Planets | 901 | 48.5K | 12 | 12 |
| 30 | Artificial Intelligence | 688 | 48.3K | 16 | 14 |
| 31 | Psychology | 695 | 46.7K | 120 | 73 |
| 32 | Research | 922 | 41.4K | 235 | 185 |
| 33 | Environmental Health | 645 | 40.0K | 75 | 70 |
| 34 | Computational Biology | 192 | 38.1K | 98 | 20 |
| 35 | Telecommunication | 592 | 38.0K | 21 | 21 |
| 36 | Materials Science | 759 | 38.0K | 95 | 105 |
| 37 | management | 313 | 36.4K | 82 | 49 |
| 38 | Neurology | 560 | 36.3K | 276 | 236 |
| 39 | Economics | 493 | 35.8K | 108 | 47 |
| 40 | Automation | 359 | 34.1K | 44 | 21 |
| 41 | Earth Sciences | 253 | 32.2K | 104 | 22 |
| 42 | Public Health | 447 | 31.2K | 198 | 117 |
| 43 | genome | 115 | 30.6K | 73 | 20 |
| 44 | Environmental Engineering | 514 | 30.1K | 43 | 55 |
| 45 | Atmospheric Physics | 548 | 29.9K | 18 | 23 |
| 46 | Psychophysiology | 523 | 29.4K | 75 | 79 |
| 47 | Signal Processing | 439 | 28.4K | 56 | 43 |
| 48 | Bioinformatics | 128 | 28.0K | 113 | 19 |
| 49 | Botany | 538 | 27.2K | 106 | 121 |
| 50 | Optics | 1,641 | 27.1K | 30 | 57 |
| 51 | Genetics | 275 | 27.0K | 203 | 152 |
| 52 | Geochemistry | 358 | 26.9K | 53 | 33 |
| 53 | Biochemical Engineering | 97 | 26.1K | 417 | 89 |
| 54 | Solar System | 598 | 26.0K | 8 | 9 |
| 55 | Mathematics | 1,039 | 25.1K | 96 | 51 |
| 56 | Information Theory | 435 | 25.1K | 10 | 14 |
| 57 | Biophysics | 545 | 24.7K | 233 | 167 |
| 58 | miniaturization | 246 | 24.6K | 45 | 39 |
| 59 | Mathematical Physics | 545 | 23.3K | 37 | 26 |
| 60 | Geology | 304 | 23.3K | 175 | 80 |
| 61 | Environmental Policy | 213 | 22.6K | 87 | 33 |
| 62 | Microelectronics | 236 | 22.5K | 56 | 37 |
| 63 | Meteorites | 283 | 22.4K | 22 | 23 |
| 64 | Image Processing | 418 | 22.4K | 27 | 31 |
| 65 | marketing | 141 | 22.2K | 64 | 34 |
| 66 | nanoscience | 216 | 21.9K | 132 | 86 |
| 67 | Business | 122 | 21.4K | 80 | 25 |
| 68 | Renewable Energy Sources | 88 | 21.4K | 227 | 43 |
| 69 | Microbial Ecology | 271 | 21.2K | 51 | 64 |
| 70 | Psychiatry | 293 | 21.2K | 238 | 172 |
| 71 | Immunity | 67 | 20.9K | 270 | 100 |
| 72 | Computer Vision | 302 | 20.8K | 2 | 15 |
| 73 | Neurophysiology | 373 | 20.5K | 125 | 141 |
| 74 | Behavior | 395 | 20.4K | 89 | 93 |
| 75 | atmospheric models | 131 | 20.4K | 23 | 2 |
| 76 | Biodiversity conservation | 122 | 20.2K | 93 | 44 |
| 77 | human behavior | 250 | 20.1K | 80 | 67 |
| 78 | Child psychology | 309 | 19.9K | 40 | 46 |
| 79 | commerce | 91 | 19.5K | 46 | 18 |
| 80 | Biocompatible Materials | 319 | 19.5K | 188 | 177 |
| 81 | Social Psychology | 316 | 19.4K | 69 | 80 |
| 82 | environmental pollution | 443 | 19.4K | 80 | 93 |
| 83 | Climate change | 93 | 19.0K | 55 | 26 |
| 84 | Eutrophication | 92 | 19.0K | 54 | 26 |
| 85 | Electronics | 420 | 18.9K | 100 | 67 |
| 86 | Virology | 313 | 18.7K | 138 | 197 |
| 87 | Immunology | 196 | 18.6K | 284 | 175 |
| 88 | Education | 616 | 18.5K | 49 | 55 |
| 89 | Software Engineering | 205 | 18.2K | 3 | 1 |
| 90 | Fluid Mechanics | 505 | 18.2K | 3 | 6 |
| 91 | Physiology | 357 | 18.1K | 199 | 169 |
| 92 | Physical Chemistry | 265 | 17.6K | 42 | 38 |
| 93 | Biomedical Engineering | 483 | 17.4K | 113 | 120 |
| 94 | Atmospheric Chemistry | 220 | 17.3K | 38 | 34 |
| 95 | biological evolution | 166 | 17.3K | 124 | 93 |
| 96 | Nonlinear Dynamics | 540 | 17.2K | 16 | 26 |
| 97 | Evolution | 174 | 17.1K | 100 | 70 |
| 98 | Hydrometeorology | 95 | 16.8K | 2 | 1 |
| 99 | Transportation | 468 | 16.7K | 19 | 21 |
| 100 | Child Development | 268 | 16.6K | 60 | 58 |
| 101 | Chemical Engineering | 242 | 16.3K | 395 | 242 |
| 102 | fuel cells | 92 | 16.2K | 79 | 25 |
| 103 | Animal Behavior | 275 | 16.0K | 70 | 57 |
| 104 | Bacteriology | 277 | 16.0K | 46 | 70 |
| 105 | Photonics | 241 | 15.9K | 79 | 54 |
| 106 | Computer Graphics | 355 | 15.9K | 18 | 28 |
| 107 | Cytology | 213 | 15.5K | 379 | 341 |
| 108 | Sociology | 293 | 15.2K | 95 | 73 |
| 109 | Statistical Mechanics | 456 | 15.0K | 3 | 6 |
| 110 | Cell Biology | 176 | 14.7K | 394 | 348 |
| 111 | Genomics | 245 | 14.6K | 94 | 60 |
| 112 | Magnetohydrodynamics | 445 | 14.6K | 3 | 3 |
| 113 | Polymers | 387 | 14.1K | 257 | 240 |
| 114 | Nanostructured Materials | 255 | 14.0K | 145 | 113 |
| 115 | Operations Research | 265 | 13.8K | 38 | 30 |
| 116 | Economic Development | 128 | 13.8K | 50 | 20 |
| 117 | Nanostructures | 71 | 13.7K | 141 | 41 |
| 118 | energy conservation | 157 | 13.4K | 62 | 41 |
| 119 | Energy Conversion | 86 | 13.4K | 95 | 58 |
| 120 | Optical materials | 152 | 13.2K | 183 | 100 |
| 121 | viruses | 145 | 13.1K | 96 | 73 |
| 122 | Educational Psychology | 203 | 13.0K | 35 | 17 |
| 123 | Colloids | 297 | 13.0K | 193 | 163 |
| 124 | Analytical Chemistry | 275 | 12.9K | 268 | 177 |
| 125 | Environmental monitoring | 159 | 12.8K | 198 | 87 |
| 126 | Medical Laboratory Science | 189 | 12.8K | 46 | 41 |
| 127 | Environmental Chemistry | 145 | 12.8K | 51 | 62 |
| 128 | Vocational guidance | 289 | 12.6K | 9 | 12 |
| 129 | Entomology | 387 | 12.4K | 43 | 32 |
| 130 | Hydrology | 277 | 12.3K | 53 | 61 |
| 131 | gene mapping | 158 | 12.2K | 65 | 53 |
| 132 | sanitation | 143 | 11.9K | 93 | 96 |
| 133 | System analysis | 214 | 11.9K | 38 | 15 |
| 134 | computer networks | 189 | 11.8K | 78 | 28 |
| 135 | Cognition | 224 | 11.7K | 69 | 71 |
| 136 | Database Management | 172 | 11.7K | 16 | 8 |
| 137 | Growth | 119 | 11.7K | 84 | 75 |
| 138 | energy development | 39 | 11.4K | 52 | 12 |
| 139 | Smart Materials | 223 | 11.3K | 7 | 3 |
| 140 | Agricultural Chemistry | 216 | 11.3K | 75 | 39 |
| 141 | Engineering | 359 | 11.1K | 88 | 62 |
| 142 | Decision making | 143 | 11.0K | 30 | 22 |
| 143 | Ethology | 160 | 10.9K | 89 | 75 |
| 144 | Communication | 270 | 10.6K | 36 | 49 |
| 145 | Technology | 246 | 10.4K | 166 | 104 |
| 146 | Biodiversity | 121 | 10.3K | 118 | 62 |
| 147 | Political Science | 178 | 10.2K | 92 | 44 |
| 148 | Sustainable Development | 101 | 10.1K | 51 | 23 |
| 149 | Light | 87 | 10.1K | 32 | 32 |
| 150 | Plant cells | 76 | 10.0K | 140 | 127 |
| 151 | Wireless Communication Systems | 204 | 10.0K | 120 | 85 |
| 152 | Chromosome mapping | 145 | 9.9K | 53 | 41 |
| 153 | Criminology | 222 | 9.9K | 16 | 9 |
| 154 | Oceanography | 226 | 9.8K | 87 | 94 |
| 155 | Plant physiology | 117 | 9.7K | 174 | 102 |
| 156 | Water | 163 | 9.4K | 133 | 150 |
| 157 | Surface Chemistry | 216 | 9.4K | 287 | 220 |
| 158 | Human genetics | 46 | 9.4K | 415 | 384 |
| 159 | Organic Chemistry | 153 | 9.3K | 259 | 118 |
| 160 | Plants | 103 | 9.2K | 164 | 122 |
| 161 | Plant Ecology | 113 | 9.2K | 108 | 58 |
| 162 | Developmental Psychology | 210 | 9.2K | 23 | 39 |
| 163 | Numerical Analysis | 204 | 9.1K | 34 | 8 |
| 164 | counseling | 301 | 9.1K | 12 | 15 |
| 165 | Developmental Biology | 168 | 9.1K | 132 | 164 |
| 166 | plant molecular biology | 93 | 9.1K | 147 | 122 |
| 167 | Radio | 112 | 9.1K | 125 | 73 |
| 168 | Social Sciences | 288 | 9.0K | 88 | 76 |
| 169 | Combustion | 191 | 9.0K | 45 | 38 |
| 170 | Microorganisms | 28 | 8.9K | 167 | 23 |
| 171 | Immune system | 7 | 8.8K | 535 | 98 |
| 172 | Brain | 192 | 8.8K | 209 | 205 |
| 173 | Geography | 212 | 8.7K | 90 | 78 |
| 174 | Substance Abuse | 217 | 8.7K | 47 | 33 |
| 175 | Cybernetics | 138 | 8.7K | 54 | 51 |
| 176 | organization | 59 | 8.6K | 56 | 44 |
| 177 | Developing countries | 166 | 8.6K | 70 | 42 |
| 178 | personality | 145 | 8.5K | 82 | 100 |
| 179 | sustainability | 71 | 8.5K | 15 | 6 |
| 180 | Agriculture | 184 | 8.5K | 69 | 56 |
| 181 | Psycholinguistics | 149 | 8.4K | 31 | 37 |
| 182 | polymerization | 241 | 8.4K | 320 | 274 |
| 183 | Soil Science | 231 | 8.3K | 56 | 65 |
| 184 | Nutrition | 193 | 8.3K | 304 | 278 |
| 185 | Economic History | 151 | 8.2K | 211 | 60 |
| 186 | Epidemiology | 129 | 8.2K | 343 | 214 |
| 187 | Sun | 207 | 8.2K | 9 | 10 |
| 188 | Agricultural Ecology | 166 | 8.1K | 18 | 30 |
| 189 | Catalysis | 212 | 8.1K | 368 | 419 |
| 190 | finance | 89 | 7.9K | 231 | 54 |
| 191 | Agronomy | 148 | 7.8K | 30 | 25 |
| 192 | Molecular evolution | 80 | 7.8K | 102 | 77 |
| 193 | Linguistics | 144 | 7.7K | 58 | 33 |
| 194 | Allergy | 9 | 7.6K | 535 | 115 |
| 195 | Speech | 181 | 7.3K | 29 | 25 |
| 196 | Electrochemistry | 290 | 7.3K | 272 | 265 |
| 197 | alcoholism | 205 | 7.3K | 56 | 58 |
| 198 | environmental protection | 135 | 7.2K | 193 | 131 |
| 199 | Ophthalmology | 97 | 7.2K | 200 | 97 |
| 200 | Pharmacology | 189 | 7.1K | 568 | 484 |
| 201 | Quantum electronics | 197 | 7.1K | 50 | 34 |
| 202 | Adolescent | 176 | 7.1K | 104 | 70 |
| 203 | Toxicology | 195 | 6.9K | 341 | 365 |
| 204 | Water pollution | 124 | 6.9K | 200 | 173 |
| 205 | Econometrics | 84 | 6.9K | 108 | 69 |
| 206 | Biogeochemistry | 84 | 6.7K | 91 | 58 |
| 207 | Marine Biology | 171 | 6.7K | 165 | 150 |
| 208 | Cognitive neuroscience | 99 | 6.7K | 71 | 89 |
| 209 | Demography | 72 | 6.5K | 37 | 16 |
| 210 | Molecular Genetics | 103 | 6.5K | 143 | 128 |
| 211 | proteins | 120 | 6.5K | 114 | 88 |
| 212 | Bioorganic chemistry | 88 | 6.5K | 324 | 142 |
| 213 | psychotherapy | 109 | 6.5K | 89 | 90 |
| 214 | Geriatrics | 152 | 6.5K | 240 | 174 |
| 215 | Health Education | 272 | 6.4K | 42 | 63 |
| 216 | Structural design | 121 | 6.4K | 13 | 7 |
| 217 | Plant diseases | 187 | 6.4K | 84 | 80 |
| 218 | Mental Disorders | 141 | 6.4K | 230 | 265 |
| 219 | Mental illness | 98 | 6.3K | 173 | 166 |
| 220 | Statistics | 265 | 6.3K | 101 | 152 |
| 221 | lasers | 189 | 6.3K | 90 | 50 |
| 222 | Diet | 114 | 6.2K | 163 | 169 |
| 223 | Vision | 78 | 6.2K | 65 | 33 |
| 224 | Industrial Safety | 121 | 6.1K | 17 | 13 |
| 225 | behavioral medicine | 53 | 6.1K | 160 | 73 |
| 226 | mathematical analysis | 255 | 6.1K | 44 | 14 |
| 227 | Neuropsychology | 171 | 6.0K | 130 | 163 |
| 228 | Human-Computer Interaction | 84 | 6.0K | 45 | 21 |
| 229 | Energy Policy | 116 | 5.9K | 170 | 177 |
| 230 | Speech Disorders | 203 | 5.9K | 33 | 43 |
| 231 | Community Psychiatry | 58 | 5.9K | 89 | 24 |
| 232 | Memory | 182 | 5.9K | 100 | 125 |
| 233 | Reading | 89 | 5.8K | 15 | 7 |
| 234 | Health promotion | 136 | 5.8K | 54 | 56 |
| 235 | Membranes | 86 | 5.8K | 206 | 140 |
| 236 | Information Technology | 103 | 5.7K | 99 | 81 |
| 237 | Nervous system | 104 | 5.7K | 253 | 233 |
| 238 | Clinical Psychology | 96 | 5.7K | 116 | 110 |
| 239 | Molecular structure | 53 | 5.7K | 358 | 116 |
| 240 | Petrology | 63 | 5.7K | 166 | 79 |
| 241 | Quantum theory | 143 | 5.6K | 15 | 6 |
| 242 | Community Psychology | 42 | 5.6K | 53 | 19 |
| 243 | visualization | 153 | 5.6K | 51 | 13 |
| 244 | Insects | 91 | 5.6K | 69 | 28 |
| 245 | drug addiction | 145 | 5.5K | 54 | 60 |
| 246 | Teaching | 151 | 5.5K | 58 | 54 |
| 247 | Pediatrics | 102 | 5.5K | 250 | 229 |
| 248 | Production Management | 83 | 5.4K | 62 | 72 |
| 249 | adolescence | 90 | 5.4K | 55 | 35 |
| 250 | Endocrinology | 131 | 5.4K | 335 | 390 |
| 251 | Mechanics | 108 | 5.4K | 33 | 18 |
| 252 | Criminal Law | 73 | 5.3K | 3 | 1 |
| 253 | Information Science | 235 | 5.3K | 30 | 109 |
| 254 | Photography | 970 | 5.3K | 10 | 8 |
| 255 | Neurons | 25 | 5.2K | 148 | 150 |
| 256 | Aging | 142 | 5.2K | 225 | 210 |
| 257 | Population Genetics | 70 | 5.2K | 126 | 102 |
| 258 | Mineralogy | 64 | 5.2K | 224 | 98 |
| 259 | global environmental change | 90 | 5.2K | 14 | 23 |
| 260 | nucleic acids | 109 | 5.2K | 149 | 250 |
| 261 | Public Policy | 95 | 5.2K | 112 | 56 |
| 262 | ecosystem | 74 | 5.2K | 74 | 62 |
| 263 | Metals | 116 | 5.1K | 181 | 172 |
| 264 | Health | 144 | 5.1K | 113 | 105 |
| 265 | Gerontology | 136 | 5.0K | 144 | 74 |
| 266 | Cognitive Science | 80 | 5.0K | 100 | 103 |
| 267 | Intelligent Control Systems | 114 | 5.0K | 7 | 2 |
| 268 | Metallurgy | 123 | 5.0K | 204 | 183 |
| 269 | Control Theory | 136 | 5.0K | 105 | 71 |
| 270 | economic policy | 98 | 5.0K | 170 | 57 |
| 271 | crime | 90 | 4.9K | 22 | 14 |
| 272 | environmental exposure | 43 | 4.9K | 240 | 36 |
| 273 | Audiology | 131 | 4.9K | 32 | 32 |
| 274 | analysis | 86 | 4.9K | 7 | 13 |
| 275 | Information Systems | 121 | 4.9K | 14 | 16 |
| 276 | Host-parasite interactions | 60 | 4.7K | 127 | 141 |
| 277 | Organizational Behavior | 50 | 4.7K | 42 | 39 |
| 278 | water supply | 88 | 4.7K | 66 | 75 |
| 279 | Biogeography | 39 | 4.6K | 150 | 65 |
| 280 | city planning | 123 | 4.6K | 67 | 69 |
| 281 | Space telescopes | 66 | 4.4K | 5 | 2 |
| 282 | Medical Microbiology | 89 | 4.4K | 254 | 256 |
| 283 | Conservation Biology | 60 | 4.4K | 96 | 56 |
| 284 | Language Disorders | 155 | 4.4K | 32 | 33 |
| 285 | Sports | 137 | 4.4K | 127 | 124 |
| 286 | Schizophrenia | 45 | 4.4K | 165 | 83 |
| 287 | Solid State Chemistry | 159 | 4.4K | 154 | 108 |
| 288 | Zoology | 98 | 4.4K | 258 | 143 |
| 289 | Molecular ecology | 63 | 4.3K | 116 | 121 |
| 290 | Neurobiology | 66 | 4.3K | 265 | 243 |
| 291 | Roads | 241 | 4.3K | 21 | 25 |
| 292 | Microwaves | 134 | 4.3K | 86 | 65 |
| 293 | Sports Medicine | 100 | 4.3K | 281 | 203 |
| 294 | Social behavior | 86 | 4.3K | 77 | 88 |
| 295 | Climate | 53 | 4.3K | 14 | 9 |
| 296 | Medical Physics | 140 | 4.2K | 118 | 141 |
| 297 | protein | 66 | 4.2K | 104 | 78 |
| 298 | Hydraulic Engineering | 124 | 4.2K | 46 | 40 |
| 299 | Virulence | 60 | 4.2K | 127 | 138 |
| 300 | preventive medicine | 86 | 4.1K | 92 | 91 |
| 301 | Learning | 90 | 4.1K | 109 | 125 |
| 302 | Structural Engineering | 163 | 4.1K | 98 | 114 |
| 303 | economic conditions | 41 | 4.1K | 46 | 11 |
| 304 | Criminal psychology | 73 | 4.1K | 57 | 37 |
| 305 | Food Microbiology | 102 | 4.1K | 47 | 77 |
| 306 | human development | 124 | 4.1K | 22 | 50 |
| 307 | food technology | 132 | 4.1K | 174 | 183 |
| 308 | Economic Thought | 36 | 4.0K | 16 | 9 |
| 309 | Energy Storage | 47 | 4.0K | 147 | 69 |
| 310 | Natural resources | 119 | 4.0K | 9 | 20 |
| 311 | Respiration | 59 | 4.0K | 208 | 129 |
| 312 | Differential Equations | 64 | 3.9K | 80 | 10 |
| 313 | Fluid Dynamics | 94 | 3.9K | 71 | 40 |
| 314 | Systems Engineering | 103 | 3.8K | 117 | 93 |
| 315 | Counseling Psychology | 131 | 3.8K | 1 | 8 |
| 316 | Marine Meteorology | 89 | 3.8K | 29 | 29 |
| 317 | Psychopharmacology | 55 | 3.8K | 224 | 191 |
| 318 | energy resources | 66 | 3.7K | 86 | 140 |
| 319 | Civil Engineering | 238 | 3.7K | 24 | 30 |
| 320 | Neurochemistry | 102 | 3.7K | 286 | 311 |
| 321 | Perception | 164 | 3.7K | 121 | 181 |
| 322 | language | 81 | 3.7K | 40 | 36 |
| 323 | Computational Chemistry | 9 | 3.7K | 341 | 62 |
| 324 | soil microbiology | 59 | 3.7K | 173 | 192 |
| 325 | auditory perception | 32 | 3.6K | 35 | 12 |
| 326 | air | 34 | 3.6K | 12 | 7 |
| 327 | Speech Perception | 27 | 3.6K | 41 | 11 |
| 328 | Combinatorial chemistry | 73 | 3.6K | 36 | 49 |
| 329 | Robotics | 101 | 3.6K | 107 | 105 |
| 330 | Geographic information systems | 77 | 3.6K | 30 | 5 |
| 331 | mass transfer | 76 | 3.6K | 172 | 144 |
| 332 | Soft Condensed Matter | 87 | 3.5K | 81 | 66 |
| 333 | Water quality management | 78 | 3.5K | 118 | 55 |
| 334 | violence | 73 | 3.5K | 65 | 52 |
| 335 | Youth | 63 | 3.5K | 38 | 30 |
| 336 | biopolymers | 83 | 3.5K | 95 | 70 |
| 337 | Biogeochemical cycles | 34 | 3.5K | 58 | 50 |
| 338 | Attention | 158 | 3.5K | 98 | 155 |
| 339 | Energy Harvesting | 25 | 3.5K | 77 | 54 |
| 340 | Embryology | 72 | 3.5K | 209 | 231 |
| 341 | vibration | 99 | 3.5K | 54 | 62 |
| 342 | Wildlife conservation | 35 | 3.5K | 214 | 102 |
| 343 | Food | 108 | 3.4K | 259 | 315 |
| 344 | Animal ecology | 60 | 3.4K | 142 | 109 |
| 345 | Cosmology | 56 | 3.4K | 31 | 20 |
| 346 | Engineering Mathematics | 74 | 3.4K | 162 | 69 |
| 347 | China | 128 | 3.4K | 200 | 144 |
| 348 | Family | 128 | 3.3K | 35 | 53 |
| 349 | behavior therapy | 54 | 3.3K | 117 | 74 |
| 350 | Logistics | 51 | 3.3K | 27 | 12 |
| 351 | Environmental Management | 78 | 3.3K | 296 | 347 |
| 352 | health behavior | 109 | 3.3K | 54 | 71 |
| 353 | Smoking | 66 | 3.3K | 78 | 51 |
| 354 | Medical genetics | 68 | 3.3K | 431 | 468 |
| 355 | Vocational Education | 92 | 3.2K | 10 | 2 |
| 356 | Visual Perception | 140 | 3.2K | 108 | 152 |
| 357 | Child | 112 | 3.2K | 198 | 204 |
| 358 | Electronic Packaging | 155 | 3.2K | 2 | 3 |
| 358 | Leadership | 28 | 3.2K | 47 | 36 |
| 360 | Risk | 83 | 3.1K | 9 | 24 |
| 361 | Structural dynamics | 37 | 3.1K | 175 | 103 |
| 362 | Quality Control | 109 | 3.1K | 44 | 55 |
| 363 | actuators | 71 | 3.0K | 245 | 216 |
| 363 | transducers | 71 | 3.0K | 245 | 216 |
| 365 | Emotions | 44 | 3.0K | 61 | 51 |
| 366 | Obesity | 67 | 3.0K | 267 | 262 |
| 367 | Land use | 36 | 3.0K | 119 | 33 |
| 368 | Mobile Computing | 59 | 3.0K | 93 | 57 |
| 369 | health services | 74 | 3.0K | 82 | 55 |
| 370 | Fisheries | 62 | 3.0K | 188 | 126 |
| 371 | Remote Sensing | 98 | 2.9K | 61 | 32 |
| 372 | Ecosystem management | 29 | 2.9K | 81 | 35 |
| 373 | libraries | 35 | 2.9K | 52 | 4 |
| 374 | Entrepreneurship | 21 | 2.9K | 194 | 140 |
| 375 | Adolescent Psychology | 78 | 2.9K | 40 | 62 |
| 376 | Experimental Psychology | 31 | 2.9K | 104 | 58 |
| 376 | Communication in medicine | 65 | 2.9K | 44 | 24 |
| 378 | Hearing | 137 | 2.9K | 25 | 42 |
| 379 | internet | 61 | 2.9K | 133 | 108 |
| 380 | Anatomy | 65 | 2.8K | 295 | 262 |
| 381 | Traffic Engineering | 44 | 2.8K | 22 | 13 |
| 382 | Population | 58 | 2.8K | 58 | 40 |
| 383 | Earthquake Engineering | 45 | 2.8K | 291 | 167 |
| 384 | Data Mining | 63 | 2.8K | 88 | 133 |
| 385 | Environmental Toxicology | 77 | 2.8K | 177 | 253 |
| 386 | Regional Planning | 79 | 2.8K | 122 | 106 |
| 387 | Industrial Microbiology | 57 | 2.8K | 188 | 191 |
| 388 | Nanoparticles | 53 | 2.7K | 232 | 183 |
| 389 | plant communities | 39 | 2.7K | 189 | 156 |
| 390 | Molecular Microbiology | 32 | 2.7K | 194 | 169 |
| 391 | Social work | 94 | 2.7K | 121 | 79 |
| 392 | behavior modification | 30 | 2.6K | 80 | 46 |
| 393 | Semiconductors | 141 | 2.6K | 96 | 99 |
| 394 | Functional Analysis | 63 | 2.6K | 142 | 39 |
| 395 | bees | 31 | 2.6K | 48 | 13 |
| 396 | Diagnostic microbiology | 37 | 2.6K | 200 | 217 |
| 397 | Fiber Optics | 50 | 2.6K | 139 | 72 |
| 398 | Crystallography | 71 | 2.6K | 192 | 82 |
| 399 | Sound | 67 | 2.6K | 84 | 69 |
| 400 | Cancer | 46 | 2.6K | 714 | 634 |
| 401 | Ceramics | 69 | 2.6K | 131 | 113 |
| 402 | Environmental Law | 30 | 2.6K | 193 | 154 |
| 403 | data protection | 12 | 2.5K | 132 | 5 |
| 404 | nuclear astrophysics | 34 | 2.5K | 53 | 25 |
| 405 | international trade | 30 | 2.5K | 65 | 37 |
| 406 | Transportation Engineering | 98 | 2.5K | 8 | 17 |
| 407 | Juvenile delinquency | 56 | 2.5K | 15 | 8 |
| 408 | Glass | 61 | 2.5K | 114 | 101 |
| 408 | pottery | 61 | 2.5K | 115 | 100 |
| 410 | Computer-Aided Design | 68 | 2.5K | 77 | 65 |
| 411 | Bacteria | 35 | 2.5K | 22 | 25 |
| 412 | Medical innovations | 51 | 2.5K | 75 | 169 |
| 413 | Cell differentiation | 40 | 2.4K | 349 | 367 |
| 414 | concrete | 8 | 2.4K | 550 | 147 |
| 415 | Learning disabilities | 91 | 2.4K | 40 | 53 |
| 416 | Political Psychology | 34 | 2.4K | 32 | 23 |
| 417 | natural disasters | 55 | 2.4K | 62 | 54 |
| 418 | Molecules | 77 | 2.4K | 187 | 163 |
| 419 | Quantum Communication | 29 | 2.4K | 8 | 2 |
| 419 | motivation | 29 | 2.4K | 26 | 12 |
| 421 | Proteome | 48 | 2.4K | 133 | 142 |
| 422 | Metabolism | 34 | 2.4K | 667 | 574 |
| 423 | Philosophy | 123 | 2.3K | 160 | 90 |
| 424 | drug abuse | 82 | 2.3K | 26 | 23 |
| 425 | freshwater biology | 22 | 2.3K | 188 | 56 |
| 426 | Risk Management | 61 | 2.3K | 15 | 31 |
| 427 | Public Relations | 57 | 2.3K | 9 | 10 |
| 428 | Emotion | 25 | 2.3K | 8 | 10 |
| 429 | Environmental Microbiology | 54 | 2.3K | 117 | 208 |
| 430 | Internet of Things | 42 | 2.3K | 161 | 110 |
| 431 | Probability | 59 | 2.3K | 28 | 29 |
| 432 | Quantum Computing | 63 | 2.3K | 2 | 3 |
| 433 | Biomechanics | 34 | 2.3K | 256 | 176 |
| 434 | Pathology | 27 | 2.3K | 583 | 387 |
| 435 | Geobiology | 40 | 2.3K | 29 | 9 |
| 436 | Intelligent Transportation Systems | 48 | 2.3K | 119 | 114 |
| 437 | Aquaculture | 91 | 2.2K | 123 | 162 |
| 438 | Databases | 41 | 2.2K | 58 | 41 |
| 438 | atmosphere | 57 | 2.2K | 40 | 34 |
| 440 | Financial management | 52 | 2.2K | 13 | 27 |
| 441 | Electrical Engineering | 359 | 2.2K | 91 | 275 |
| 442 | software | 32 | 2.2K | 106 | 37 |
| 443 | Anxiety Disorders | 37 | 2.2K | 66 | 87 |
| 444 | Breeding | 42 | 2.2K | 198 | 113 |
| 445 | sexual behavior | 53 | 2.2K | 46 | 50 |
| 446 | Hematology | 49 | 2.2K | 545 | 485 |
| 447 | older people | 100 | 2.2K | 149 | 113 |
| 448 | Politics | 79 | 2.2K | 29 | 33 |
| 448 | government | 78 | 2.2K | 47 | 50 |
| 450 | Dietetics | 54 | 2.2K | 57 | 35 |
| 451 | Multimedia Systems | 73 | 2.2K | 122 | 95 |
| 452 | Pharmaceutical Chemistry | 86 | 2.2K | 557 | 677 |
| 453 | Cement | 5 | 2.2K | 427 | 103 |
| 454 | Anxiety | 36 | 2.2K | 71 | 88 |
| 455 | Plant genetic engineering | 37 | 2.1K | 128 | 103 |
| 456 | Ocean Engineering | 66 | 2.1K | 253 | 253 |
| 457 | Mental Health Services | 101 | 2.1K | 66 | 96 |
| 458 | Health Policy | 88 | 2.1K | 233 | 273 |
| 459 | Photochemistry | 50 | 2.1K | 192 | 139 |
| 460 | Cerebral cortex | 28 | 2.1K | 218 | 171 |
| 461 | Environmental Geology | 44 | 2.1K | 189 | 124 |
| 462 | Drug delivery systems | 32 | 2.1K | 283 | 204 |
| 463 | Composite Materials | 69 | 2.1K | 455 | 598 |
| 464 | Aerosols | 157 | 2.1K | 7 | 50 |
| 465 | Oral communication | 31 | 2.0K | 28 | 5 |
| 466 | Psychometrics | 50 | 2.0K | 47 | 68 |
| 467 | micromechanics | 50 | 2.0K | 46 | 40 |
| 468 | Power Electronics | 39 | 2.0K | 207 | 201 |
| 469 | Radiation | 93 | 2.0K | 147 | 175 |
| 470 | Genetic engineering | 55 | 2.0K | 273 | 357 |
| 471 | Restoration Ecology | 14 | 1.9K | 106 | 17 |
| 472 | Vaccines | 50 | 1.9K | 246 | 213 |
| 473 | Telecommunication Systems | 52 | 1.9K | 142 | 63 |
| 474 | Nuclear Fusion | 78 | 1.9K | 87 | 79 |
| 475 | Special Education | 87 | 1.9K | 59 | 66 |
| 476 | optical instruments | 55 | 1.9K | 28 | 35 |
| 477 | Soil biology | 29 | 1.9K | 218 | 205 |
| 478 | Law | 55 | 1.9K | 153 | 37 |
| 478 | world | 28 | 1.9K | 118 | 98 |
| 480 | Urban Economics | 27 | 1.9K | 44 | 36 |
| 481 | Career development | 50 | 1.9K | 6 | 2 |
| 482 | Plant Genetics | 23 | 1.9K | 144 | 107 |
| 482 | peace | 33 | 1.9K | 72 | 54 |
| 484 | Planetary Science | 67 | 1.9K | 35 | 31 |
| 485 | Carbon | 47 | 1.9K | 166 | 269 |
| 486 | Marriage | 59 | 1.9K | 26 | 29 |
| 487 | drug therapy | 42 | 1.8K | 464 | 355 |
| 488 | Superconductors | 151 | 1.8K | 46 | 64 |
| 489 | Medical Anthropology | 48 | 1.8K | 192 | 239 |
| 490 | cryosphere | 54 | 1.8K | 34 | 59 |
| 491 | Nuclear Engineering | 158 | 1.8K | 90 | 109 |
| 492 | Medical Technology | 36 | 1.8K | 223 | 138 |
| 493 | Immunopharmacology | 29 | 1.8K | 174 | 66 |
| 494 | international cooperation | 34 | 1.8K | 68 | 48 |
| 495 | Documentation | 61 | 1.8K | 6 | 20 |
| 496 | Biomass Energy | 35 | 1.8K | 546 | 542 |
| 497 | Reproduction | 67 | 1.8K | 349 | 375 |
| 498 | Mental Health | 66 | 1.8K | 175 | 165 |
| 499 | urban population | 20 | 1.8K | 34 | 22 |
| 500 | cell physiology | 32 | 1.8K | 351 | 334 |
| 501 | Biomolecules | 9 | 1.8K | 164 | 40 |
| 502 | Mycology | 65 | 1.8K | 179 | 242 |
| 503 | Family Therapy | 63 | 1.8K | 53 | 45 |
| 504 | Transplantation | 15 | 1.7K | 377 | 208 |
| 505 | Crystallization | 12 | 1.7K | 174 | 13 |
| 505 | Environmental pollutants | 81 | 1.7K | 145 | 314 |
| 507 | Neurolinguistics | 29 | 1.7K | 50 | 45 |
| 508 | Interactive multimedia | 41 | 1.7K | 59 | 56 |
| 509 | Neuroimmunology | 32 | 1.7K | 97 | 113 |
| 510 | Urban Policy | 25 | 1.7K | 136 | 47 |
| 511 | Clinical Chemistry | 57 | 1.7K | 487 | 546 |
| 512 | War and Society | 26 | 1.7K | 32 | 33 |
| 513 | warfare | 25 | 1.7K | 44 | 38 |
| 514 | terrorism | 38 | 1.7K | 10 | 1 |
| 515 | Bioenergetics | 21 | 1.7K | 218 | 123 |
| 516 | Wetland ecology | 30 | 1.7K | 29 | 11 |
| 517 | families | 84 | 1.7K | 42 | 68 |
| 518 | Molecular Spectroscopy | 39 | 1.7K | 304 | 138 |
| 519 | Post-traumatic stress disorder | 17 | 1.7K | 238 | 104 |
| 520 | Structure-activity relationship | 5 | 1.7K | 127 | 30 |
| 521 | Energy metabolism | 20 | 1.6K | 183 | 110 |
| 522 | food handling | 49 | 1.6K | 48 | 63 |
| 522 | Genes | 37 | 1.6K | 142 | 84 |
| 524 | Strategic planning | 28 | 1.6K | 69 | 59 |
| 525 | planning | 54 | 1.6K | 26 | 24 |
| 526 | Neural circuitry | 44 | 1.6K | 292 | 296 |
| 527 | weather forecasting | 48 | 1.6K | 10 | 12 |
| 528 | Fracture mechanics | 58 | 1.6K | 204 | 185 |
| 528 | urban health | 24 | 1.6K | 37 | 21 |
| 530 | Mortgages | 2 | 1.6K | 254 | 5 |
| 530 | Imaging systems | 16 | 1.6K | 161 | 3 |
| 532 | Plant Biotechnology | 30 | 1.6K | 106 | 71 |
| 533 | pollutants | 77 | 1.6K | 123 | 286 |
| 534 | Algae | 70 | 1.6K | 37 | 89 |
| 535 | multimedia | 35 | 1.6K | 68 | 59 |
| 536 | Wetland conservation | 23 | 1.6K | 31 | 8 |
| 536 | Wetlands | 23 | 1.6K | 31 | 8 |
| 538 | Group decision making | 39 | 1.6K | 22 | 24 |
| 539 | Mass Spectrometry | 35 | 1.6K | 225 | 150 |
| 540 | Food additives | 25 | 1.6K | 224 | 170 |
| 541 | Research Design | 55 | 1.6K | 125 | 206 |
| 542 | hazard mitigation | 42 | 1.6K | 42 | 50 |
| 543 | Public Choice | 37 | 1.6K | 21 | 20 |
| 544 | Development | 28 | 1.6K | 138 | 118 |
| 545 | Socioeconomic Factors | 47 | 1.6K | 47 | 49 |
| 546 | Real-time Data Processing | 9 | 1.6K | 33 | 7 |
| 547 | Industrial Engineering | 61 | 1.6K | 224 | 287 |
| 547 | Seaweed | 67 | 1.6K | 24 | 64 |
| 549 | Histology | 45 | 1.5K | 349 | 356 |
| 550 | coal | 34 | 1.5K | 334 | 309 |
| 551 | Heat Exchangers | 37 | 1.5K | 189 | 181 |
| 552 | School Psychology | 39 | 1.5K | 67 | 59 |
| 552 | Parasitology | 46 | 1.5K | 412 | 330 |
| 554 | Pesticides | 48 | 1.5K | 39 | 25 |
| 555 | Phylogeny | 26 | 1.5K | 168 | 133 |
| 556 | Algorithms | 43 | 1.5K | 27 | 17 |
| 557 | Economic Assistance | 23 | 1.5K | 137 | 109 |
| 558 | nuclear magnetic resonance | 72 | 1.5K | 113 | 153 |
| 559 | recreation | 107 | 1.5K | 19 | 39 |
| 560 | radiative transfer | 61 | 1.5K | 47 | 64 |
| 561 | DNA polymerases | 8 | 1.5K | 188 | 132 |
| 562 | Small Business | 14 | 1.5K | 235 | 209 |
| 563 | Exercise | 47 | 1.5K | 183 | 164 |
| 564 | Information Retrieval | 34 | 1.5K | 37 | 54 |
| 565 | Dynamics | 96 | 1.4K | 51 | 98 |
| 565 | child mental health | 55 | 1.4K | 19 | 22 |
| 567 | Expert Systems | 13 | 1.4K | 10 | 2 |
| 568 | Europe | 52 | 1.4K | 597 | 491 |
| 569 | rehabilitation | 51 | 1.4K | 333 | 378 |
| 570 | biological factors | 39 | 1.4K | 322 | 301 |
| 571 | Child welfare | 49 | 1.4K | 135 | 115 |
| 572 | Social problems | 43 | 1.4K | 46 | 89 |
| 573 | enzymes | 48 | 1.4K | 185 | 240 |
| 574 | Structural optimization | 22 | 1.4K | 54 | 36 |
| 575 | probabilities | 97 | 1.4K | 104 | 114 |
| 576 | Birds | 64 | 1.4K | 128 | 130 |
| 577 | Ecological Engineering | 28 | 1.4K | 45 | 37 |
| 578 | homosexuality | 37 | 1.4K | 25 | 21 |
| 579 | Atomic spectroscopy | 64 | 1.4K | 69 | 120 |
| 580 | innovation | 13 | 1.4K | 191 | 181 |
| 581 | Production Engineering | 55 | 1.4K | 297 | 245 |
| 582 | Personality Assessment | 21 | 1.4K | 139 | 102 |
| 583 | Mechanical Engineering | 92 | 1.4K | 249 | 299 |
| 584 | Nanoelectronics | 61 | 1.4K | 56 | 34 |
| 585 | Building | 52 | 1.4K | 54 | 50 |
| 586 | Quantum Optics | 67 | 1.4K | 36 | 72 |
| 587 | Writing | 25 | 1.4K | 23 | 14 |
| 587 | Ventilation | 74 | 1.4K | 14 | 41 |
| 589 | Leisure | 25 | 1.4K | 47 | 29 |
| 590 | Political Sociology | 32 | 1.3K | 47 | 44 |
| 591 | Mathematical Economics | 14 | 1.3K | 94 | 70 |
| 592 | Chemical Ecology | 33 | 1.3K | 64 | 78 |
| 593 | Manufacturing Processes | 61 | 1.3K | 355 | 445 |
| 594 | Socialization | 32 | 1.3K | 58 | 79 |
| 595 | Biosensors | 35 | 1.3K | 209 | 340 |
| 596 | electric vehicles | 13 | 1.3K | 92 | 24 |
| 596 | Metabolic diseases | 28 | 1.3K | 603 | 638 |
| 598 | Educational measurement | 23 | 1.3K | 18 | 5 |
| 599 | pheromones | 31 | 1.3K | 61 | 72 |
| 599 | Therapeutics | 38 | 1.3K | 345 | 366 |
| 601 | Invertebrates | 44 | 1.3K | 39 | 38 |
| 602 | Nuclear Chemistry | 62 | 1.3K | 89 | 63 |
| 603 | Chemical analysis | 25 | 1.3K | 217 | 102 |
| 604 | Geotechnical Engineering | 41 | 1.3K | 75 | 85 |
| 605 | Business Ethics | 24 | 1.3K | 183 | 277 |
| 606 | Geometry | 93 | 1.3K | 60 | 60 |
| 606 | drug development | 24 | 1.3K | 178 | 268 |
| 608 | Oncogenes | 6 | 1.3K | 650 | 370 |
| 609 | child abuse | 27 | 1.3K | 171 | 154 |
| 610 | Biological Systems | 17 | 1.3K | 81 | 34 |
| 611 | Comparative Physiology | 37 | 1.2K | 115 | 136 |
| 612 | Anthropology | 62 | 1.2K | 217 | 212 |
| 613 | Laser Spectroscopy | 58 | 1.2K | 41 | 71 |
| 614 | Measurement | 52 | 1.2K | 110 | 122 |
| 615 | Elderly | 78 | 1.2K | 132 | 70 |
| 616 | Neuropharmacology | 23 | 1.2K | 100 | 51 |
| 617 | Chemical Oceanography | 12 | 1.2K | 107 | 78 |
| 618 | Orthopedics | 7 | 1.2K | 851 | 299 |
| 619 | Systems Biology | 48 | 1.2K | 185 | 236 |
| 620 | Primates | 34 | 1.2K | 110 | 95 |
| 621 | Computer Science | 59 | 1.2K | 170 | 176 |
| 622 | nuclear magnetic resonance spectroscopy | 54 | 1.2K | 41 | 67 |
| 623 | International Finance | 17 | 1.2K | 636 | 291 |
| 624 | Library Science | 66 | 1.2K | 40 | 22 |
| 625 | disease vectors | 16 | 1.2K | 284 | 110 |
| 626 | exobiology | 26 | 1.2K | 25 | 44 |
| 627 | Air Conditioning | 70 | 1.2K | 2 | 5 |
| 628 | Microbial Genetics | 22 | 1.2K | 49 | 48 |
| 629 | RNA | 22 | 1.2K | 91 | 84 |
| 630 | Asia | 46 | 1.2K | 383 | 267 |
| 631 | Radiography | 20 | 1.2K | 209 | 232 |
| 632 | Venture Capital | 6 | 1.2K | 160 | 142 |
| 633 | Oncology | 17 | 1.2K | 715 | 858 |
| 634 | phytopathogenic bacteria | 18 | 1.2K | 47 | 48 |
| 634 | heating | 68 | 1.2K | 2 | 5 |
| 636 | Depression | 17 | 1.2K | 74 | 84 |
| 637 | Student Health Services | 37 | 1.2K | 17 | 5 |
| 638 | Obstetrics | 29 | 1.2K | 591 | 468 |
| 639 | Recycling | 21 | 1.1K | 100 | 143 |
| 640 | Minerals | 26 | 1.1K | 86 | 55 |
| 641 | Pharmaceutical Technology | 19 | 1.1K | 497 | 289 |
| 642 | Economic planning | 33 | 1.1K | 25 | 26 |
| 643 | Forest Ecology | 27 | 1.1K | 228 | 224 |
| 644 | Forest Management | 39 | 1.1K | 160 | 207 |
| 645 | International Relations | 45 | 1.1K | 176 | 154 |
| 646 | hydrocolloids | 16 | 1.1K | 186 | 180 |
| 647 | Humanities | 28 | 1.1K | 274 | 63 |
| 648 | data collection | 38 | 1.1K | 72 | 237 |
| 649 | Horticulture | 49 | 1.1K | 52 | 46 |
| 650 | consumer behavior | 40 | 1.1K | 25 | 102 |
| 651 | Pharmacy | 33 | 1.1K | 499 | 443 |
| 652 | environmental indicators | 12 | 1.1K | 458 | 178 |
| 652 | Diagnostic Imaging | 40 | 1.1K | 354 | 411 |
| 654 | Cosmochemistry | 29 | 1.1K | 164 | 172 |
| 655 | Music | 73 | 1.1K | 41 | 68 |
| 656 | Building Materials | 28 | 1.1K | 522 | 620 |
| 657 | urban forestry | 23 | 1.1K | 15 | 11 |
| 658 | Health Services Administration | 45 | 1.1K | 97 | 130 |
| 659 | Electrophoresis | 29 | 1.1K | 364 | 275 |
| 660 | Coral reef biology | 9 | 1.0K | 140 | 55 |
| 661 | Game Theory | 14 | 1.0K | 194 | 65 |
| 661 | Stochastic Processes | 40 | 1.0K | 69 | 48 |
| 661 | geological modeling | 31 | 1.0K | 44 | 73 |
| 661 | Bioelectronics | 28 | 1.0K | 212 | 358 |
| 665 | Ornithology | 55 | 1.0K | 110 | 118 |
| 666 | Scandinavia | 24 | 1.0K | 98 | 79 |
| 667 | role | 20 | 1.0K | 76 | 64 |
| 668 | income distribution | 5 | 1.0K | 88 | 26 |
| 669 | race relations | 31 | 1.0K | 74 | 55 |
| 670 | Particle Physics | 18 | 1.0K | 26 | 36 |
| 670 | Estuaries | 25 | 1.0K | 24 | 34 |
| 672 | Tissue Engineering | 16 | 1.0K | 53 | 41 |
| 672 | Soil ecology | 18 | 1.0K | 197 | 144 |
| 674 | histological techniques | 8 | 1.0K | 363 | 157 |
| 675 | Bones | 2 | 1.0K | 751 | 214 |
| 676 | Insect biochemistry | 29 | 999 | 53 | 74 |
| 677 | Immunotherapy | 19 | 996 | 561 | 526 |
| 678 | mycoses | 10 | 995 | 327 | 249 |
| 679 | Geochemical Modeling | 26 | 992 | 44 | 71 |
| 680 | Celestial Mechanics | 8 | 988 | 80 | 20 |
| 681 | Analytical Biochemistry | 19 | 986 | 528 | 334 |
| 682 | Electromagnetic compatibility | 30 | 976 | 45 | 39 |
| 683 | Organizational Sociology | 2 | 973 | 467 | 36 |
| 684 | Computational Linguistics | 43 | 971 | 12 | 12 |
| 685 | Radiochemistry | 46 | 970 | 112 | 72 |
| 686 | Hazardous waste | 21 | 968 | 172 | 225 |
| 687 | healthcare disparities | 45 | 964 | 28 | 38 |
| 687 | Parasitic Diseases | 22 | 964 | 565 | 424 |
| 689 | Parasites | 22 | 963 | 429 | 274 |
| 690 | children | 19 | 957 | 102 | 83 |
| 690 | aerosol | 96 | 957 | 7 | 53 |
| 692 | Bacterial infections | 9 | 950 | 355 | 272 |
| 693 | complementary therapies | 28 | 940 | 272 | 205 |
| 694 | Otolaryngology | 25 | 934 | 120 | 98 |
| 695 | Social Issues | 23 | 931 | 35 | 38 |
| 696 | Geomorphology | 19 | 929 | 499 | 423 |
| 697 | United Kingdom | 29 | 927 | 382 | 432 |
| 698 | Phonetics | 26 | 923 | 53 | 46 |
| 699 | taxation | 3 | 922 | 234 | 7 |
| 700 | Autonomous robots | 18 | 921 | 14 | 23 |
| 701 | Social policy | 31 | 917 | 176 | 124 |
| 702 | Women's health | 30 | 916 | 210 | 174 |
| 703 | Uncertainty | 29 | 913 | 6 | 25 |
| 704 | Geodynamics | 16 | 910 | 359 | 285 |
| 705 | Cultural diversity | 22 | 909 | 15 | 23 |
| 706 | Biometrics | 61 | 908 | 126 | 229 |
| 707 | Organometallic compounds | 38 | 907 | 229 | 300 |
| 708 | Foodborne diseases | 39 | 903 | 13 | 17 |
| 709 | space environment | 21 | 893 | 31 | 25 |
| 710 | Developmental Disabilities | 28 | 892 | 226 | 293 |
| 711 | Molecular cloning | 20 | 887 | 389 | 290 |
| 712 | Elementary particles | 13 | 884 | 30 | 41 |
| 713 | Microeconomics | 14 | 883 | 91 | 62 |
| 714 | Comparative Psychology | 13 | 881 | 23 | 21 |
| 715 | ethnic groups | 18 | 871 | 59 | 22 |
| 716 | Nuclear Energy | 56 | 866 | 126 | 139 |
| 717 | medical education | 37 | 865 | 350 | 358 |
| 718 | Molecular Pharmacology | 14 | 864 | 270 | 208 |
| 719 | sex crimes | 28 | 855 | 91 | 93 |
| 720 | particle accelerators | 52 | 849 | 6 | 10 |
| 720 | particle beams | 52 | 849 | 6 | 10 |
| 722 | Functional Genomics | 14 | 845 | 58 | 52 |
| 723 | World Bank | 5 | 844 | 12 | 3 |
| 724 | Parallel Processing | 36 | 842 | 53 | 125 |
| 725 | Paleoclimatology | 19 | 840 | 391 | 348 |
| 726 | public works | 20 | 838 | 12 | 10 |
| 727 | Computational Fluid Dynamics | 27 | 825 | 98 | 86 |
| 728 | Recombinant DNA | 20 | 822 | 432 | 337 |
| 729 | psychopathology | 22 | 819 | 75 | 101 |
| 730 | Sales management | 9 | 817 | 91 | 115 |
| 730 | selling | 9 | 817 | 91 | 115 |
| 732 | Freshwater invertebrates | 9 | 810 | 72 | 39 |
| 732 | brain mapping | 20 | 810 | 177 | 219 |
| 734 | Psychiatric hospitals | 32 | 809 | 40 | 46 |
| 735 | Genetic recombination | 19 | 806 | 392 | 314 |
| 736 | Telecommunications | 9 | 804 | 317 | 47 |
| 737 | child behavior | 23 | 803 | 65 | 97 |
| 738 | Educational Technology | 31 | 801 | 284 | 321 |
| 739 | Australia | 31 | 798 | 326 | 283 |
| 740 | Cryptography | 30 | 796 | 59 | 38 |
| 741 | Surgery | 11 | 788 | 682 | 603 |
| 742 | Marine Pollution | 22 | 785 | 331 | 363 |
| 743 | Alternative Medicine | 17 | 781 | 415 | 252 |
| 744 | foreign exchange | 8 | 776 | 147 | 52 |
| 745 | Scheduling | 7 | 775 | 44 | 4 |
| 745 | Production Scheduling | 7 | 775 | 44 | 4 |
| 745 | biomimicry | 21 | 775 | 9 | 14 |
| 748 | Paleoecology | 20 | 772 | 346 | 331 |
| 748 | Continuing Education | 58 | 772 | 15 | 14 |
| 750 | Geomagnetism | 39 | 770 | 113 | 160 |
| 751 | Detectors | 41 | 765 | 214 | 303 |
| 752 | Sustainable Engineering | 18 | 763 | 558 | 540 |
| 753 | Digital Media | 7 | 760 | 76 | 19 |
| 754 | Securities | 4 | 757 | 236 | 23 |
| 754 | Capital market | 4 | 757 | 345 | 62 |
| 756 | Cognitive Therapy | 20 | 755 | 152 | 127 |
| 757 | deviant behavior | 18 | 753 | 47 | 18 |
| 758 | Broadcasting | 8 | 752 | 58 | 19 |
| 759 | Sleep | 33 | 749 | 358 | 400 |
| 760 | Hospitals | 24 | 748 | 100 | 72 |
| 761 | Online journalism | 6 | 745 | 43 | 18 |
| 762 | Process Control | 24 | 740 | 188 | 377 |
| 762 | Investment analysis | 15 | 740 | 216 | 120 |
| 762 | Aquatic ecology | 11 | 740 | 400 | 160 |
| 765 | Paleogeography | 18 | 736 | 338 | 311 |
| 766 | Health Services Research | 30 | 728 | 351 | 375 |
| 767 | Magnetic Resonance Spectroscopy | 49 | 726 | 192 | 272 |
| 768 | Fishery management | 19 | 724 | 199 | 142 |
| 769 | Physical organic chemistry | 24 | 719 | 401 | 329 |
| 770 | Virtual reality | 7 | 715 | 198 | 44 |
| 770 | Industrial Policy | 14 | 715 | 141 | 107 |
| 772 | Magnetic Materials | 38 | 714 | 294 | 421 |
| 773 | Embedded Systems | 20 | 712 | 18 | 17 |
| 773 | food contamination | 37 | 712 | 71 | 100 |
| 775 | Proteomics | 16 | 711 | 332 | 310 |
| 776 | Agricultural Science | 9 | 709 | 87 | 86 |
| 777 | cytokines | 10 | 707 | 537 | 343 |
| 778 | Radiation effects | 22 | 705 | 68 | 120 |
| 779 | Cardiovascular system | 12 | 704 | 611 | 637 |
| 780 | Textile industry | 30 | 697 | 80 | 56 |
| 781 | Gender Studies | 25 | 695 | 34 | 49 |
| 782 | environmental issues | 14 | 692 | 84 | 53 |
| 783 | Experimental Design | 13 | 688 | 82 | 73 |
| 784 | Culture | 29 | 687 | 217 | 151 |
| 785 | Harmonic Analysis | 19 | 686 | 22 | 33 |
| 786 | health services accessibility | 22 | 682 | 222 | 185 |
| 787 | Plant breeding | 19 | 680 | 177 | 139 |
| 788 | Sleep Disorders | 26 | 679 | 418 | 418 |
| 789 | natural products | 15 | 678 | 731 | 420 |
| 789 | Microscopy | 29 | 678 | 254 | 270 |
| 791 | Social perception | 10 | 676 | 42 | 33 |
| 792 | Religion | 19 | 675 | 255 | 39 |
| 792 | Protozoa | 16 | 675 | 85 | 90 |
| 792 | Quality of life | 30 | 675 | 255 | 413 |
| 795 | Physical Therapy | 15 | 667 | 465 | 387 |
| 796 | Critical Care | 5 | 666 | 869 | 617 |
| 796 | Critical Care Medicine | 5 | 666 | 841 | 616 |
| 798 | Microbial Biotechnology | 24 | 664 | 122 | 165 |
| 799 | speech therapy | 28 | 662 | 69 | 77 |
| 800 | emergency management | 16 | 660 | 144 | 109 |
| 801 | Semiconductor industry | 27 | 653 | 105 | 67 |
| 802 | Hydrogeology | 2 | 652 | 794 | 119 |
| 803 | Evidence-Based Medicine | 13 | 650 | 223 | 103 |
| 803 | Agricultural systems | 10 | 650 | 110 | 77 |
| 805 | Adult Education | 33 | 647 | 69 | 45 |
| 805 | Animal breeding | 24 | 647 | 219 | 185 |
| 807 | Sexuality | 18 | 641 | 41 | 29 |
| 808 | Regional Development | 14 | 636 | 50 | 32 |
| 808 | Development planning | 14 | 636 | 30 | 28 |
| 810 | Technological Innovations | 30 | 634 | 118 | 250 |
| 810 | Transport | 13 | 634 | 195 | 159 |
| 810 | Fungi | 20 | 634 | 295 | 387 |
| 813 | Emergency Medicine | 15 | 632 | 487 | 280 |
| 813 | movement | 20 | 632 | 41 | 54 |
| 815 | Developmental Genetics | 13 | 629 | 186 | 264 |
| 816 | Cytoskeleton | 17 | 628 | 54 | 55 |
| 817 | Cytogenetics | 18 | 625 | 426 | 565 |
| 818 | irrigation | 31 | 623 | 28 | 33 |
| 819 | Biofilms | 6 | 621 | 53 | 7 |
| 820 | Green Chemistry | 16 | 620 | 702 | 806 |
| 820 | Classification | 7 | 620 | 106 | 64 |
| 822 | Maternal health services | 19 | 618 | 76 | 64 |
| 822 | industrial waste | 15 | 618 | 221 | 353 |
| 824 | Plant tissue culture | 12 | 614 | 244 | 139 |
| 824 | Aggression | 13 | 614 | 158 | 150 |
| 826 | Knowledge | 21 | 613 | 124 | 73 |
| 827 | Plant cell culture | 10 | 611 | 241 | 136 |
| 828 | family violence | 11 | 610 | 164 | 105 |
| 829 | Semantic web | 1 | 607 | 197 | 20 |
| 830 | Paleontology | 20 | 605 | 453 | 368 |
| 831 | Artificial Organs | 21 | 603 | 151 | 104 |
| 832 | Urban Education | 17 | 601 | 8 | 12 |
| 833 | digital preservation | 10 | 600 | 5 | 3 |
| 833 | animals | 25 | 600 | 270 | 228 |
| 835 | Pharmacognosy | 12 | 597 | 866 | 711 |
| 835 | Nonlinear functional analysis | 22 | 597 | 307 | 216 |
| 837 | Physical fitness | 13 | 596 | 403 | 316 |
| 838 | Cell metabolism | 4 | 595 | 511 | 430 |
| 839 | forestry | 5 | 593 | 156 | 40 |
| 840 | Welfare Economics | 15 | 591 | 130 | 108 |
| 840 | Entropy | 44 | 591 | 58 | 109 |
| 842 | Public Administration | 33 | 590 | 305 | 364 |
| 842 | Hydrodynamics | 18 | 590 | 182 | 189 |
| 844 | radioactive waste | 10 | 589 | 335 | 364 |
| 844 | Toxins | 11 | 589 | 306 | 162 |
| 846 | Ethics | 24 | 582 | 194 | 148 |
| 847 | Combinatorial optimization | 14 | 575 | 101 | 12 |
| 847 | Intelligence | 11 | 575 | 91 | 84 |
| 849 | Approximation Theory | 22 | 573 | 85 | 46 |
| 850 | Homeostasis | 3 | 572 | 352 | 415 |
| 850 | Literacy | 20 | 572 | 48 | 29 |
| 852 | Genetic regulation | 15 | 569 | 371 | 446 |
| 852 | Radio waves | 30 | 569 | 242 | 340 |
| 854 | Ultrasonics | 13 | 565 | 477 | 420 |
| 855 | Surface properties | 21 | 563 | 240 | 398 |
| 856 | Soil fertility | 9 | 558 | 122 | 106 |
| 857 | Stem cells | 15 | 557 | 541 | 546 |
| 858 | drainage | 30 | 554 | 22 | 23 |
| 859 | eugenics | 11 | 553 | 191 | 94 |
| 860 | Queer Studies | 17 | 551 | 28 | 41 |
| 861 | Hypertension | 11 | 550 | 672 | 697 |
| 862 | cell membrane | 12 | 549 | 258 | 260 |
| 863 | Logic Programming | 19 | 545 | 51 | 25 |
| 864 | Evolutionary Genetics | 14 | 544 | 121 | 101 |
| 864 | Molecular Epidemiology | 14 | 544 | 121 | 101 |
| 864 | blood transfusion | 17 | 544 | 184 | 143 |
| 867 | school psychologists | 13 | 541 | 69 | 72 |
| 868 | consumers | 32 | 539 | 9 | 81 |
| 869 | Extreme environments | 5 | 536 | 128 | 36 |
| 870 | Simulation Methods | 29 | 533 | 93 | 127 |
| 870 | drugs | 17 | 533 | 720 | 665 |
| 872 | Intellectual disability | 20 | 532 | 237 | 242 |
| 873 | Adolescent Medicine | 11 | 531 | 204 | 320 |
| 873 | Government policy | 7 | 531 | 73 | 41 |
| 875 | greenhouse effect | 14 | 527 | 1 | 3 |
| 875 | Carbon dioxide | 14 | 527 | 1 | 3 |
| 877 | Applied Linguistics | 24 | 526 | 105 | 110 |
| 877 | soil conservation | 12 | 526 | 241 | 173 |
| 879 | Gene expression regulation | 15 | 525 | 305 | 347 |
| 880 | Microwave devices | 12 | 524 | 196 | 112 |
| 881 | Machine Learning | 15 | 523 | 76 | 109 |
| 882 | Hallucinogens | 18 | 521 | 20 | 27 |
| 883 | Psychoneuroimmunology | 12 | 520 | 225 | 267 |
| 884 | Wind power | 7 | 516 | 130 | 39 |
| 885 | thinking | 14 | 513 | 45 | 57 |
| 886 | Developed countries | 33 | 507 | 9 | 66 |
| 887 | Logic | 24 | 505 | 78 | 55 |
| 887 | Quantitative Research | 16 | 505 | 63 | 87 |
| 887 | environmental remediation | 16 | 505 | 18 | 30 |
| 890 | Higher Education | 15 | 504 | 177 | 120 |
| 890 | Engineering Geology | 15 | 504 | 578 | 535 |
| 890 | Geodesy | 13 | 504 | 205 | 141 |
| 893 | Computational Mathematics | 8 | 502 | 43 | 24 |
| 893 | scientific societies | 17 | 502 | 192 | 187 |
| 895 | Phytochemistry | 15 | 501 | 16 | 24 |
| 895 | Landscape Ecology | 9 | 501 | 189 | 161 |
| 895 | Phytoremediation | 15 | 501 | 16 | 24 |
| 895 | Bioreactors | 15 | 501 | 16 | 24 |
| 895 | Input-output analysis | 10 | 501 | 59 | 55 |
| 900 | Moon | 19 | 500 | 20 | 11 |
| 901 | Electrophysiology | 30 | 493 | 199 | 258 |
| 902 | Electromagnetism | 17 | 492 | 350 | 286 |
| 903 | Fisheries Law | 6 | 491 | 69 | 63 |
| 903 | fisheries management | 6 | 491 | 69 | 63 |
| 903 | health planning | 30 | 491 | 519 | 614 |
| 906 | Inflammation | 10 | 490 | 483 | 464 |
| 907 | Cognitive Psychology | 17 | 488 | 77 | 63 |
| 907 | Birth control | 21 | 488 | 86 | 120 |
| 909 | biological monitoring | 7 | 482 | 233 | 109 |
| 910 | Demographic research | 10 | 479 | 43 | 58 |
| 911 | Liposomes | 18 | 478 | 121 | 197 |
| 911 | Lipid bilayers | 18 | 478 | 98 | 181 |
| 911 | Informatics | 21 | 478 | 155 | 265 |
| 914 | Nanobiotechnology | 2 | 477 | 517 | 172 |
| 915 | Africa | 14 | 476 | 573 | 276 |
| 916 | Early Childhood Education | 25 | 475 | 100 | 122 |
| 916 | Feminist criticism | 10 | 475 | 13 | 4 |
| 918 | Fish diseases | 14 | 473 | 20 | 20 |
| 919 | Electrochemical Analysis | 17 | 471 | 612 | 572 |
| 920 | Computer Architecture | 22 | 470 | 89 | 75 |
| 921 | California | 17 | 468 | 119 | 106 |
| 922 | Ergonomics | 58 | 467 | 112 | 279 |
| 923 | technical education | 27 | 466 | 77 | 109 |
| 924 | explosives | 31 | 465 | 20 | 19 |
| 925 | ethnicity | 32 | 461 | 79 | 104 |
| 926 | Veterinary Immunology | 12 | 460 | 123 | 96 |
| 927 | Morphology | 19 | 459 | 236 | 207 |
| 928 | cultural pluralism | 19 | 456 | 34 | 37 |
| 929 | Liver diseases | 8 | 448 | 713 | 690 |
| 930 | language therapy | 21 | 447 | 27 | 40 |
| 931 | Waste management | 16 | 445 | 455 | 360 |
| 931 | Water Purification | 15 | 445 | 376 | 287 |
| 933 | standardization | 16 | 436 | 4 | 5 |
| 934 | Solar Energy | 26 | 435 | 392 | 829 |
| 934 | Suicide | 16 | 435 | 150 | 167 |
| 936 | Mechatronics | 14 | 433 | 301 | 304 |
| 936 | Organizational change | 13 | 433 | 215 | 211 |
| 936 | Computational Complexity | 148 | 433 | 2 | 134 |
| 939 | Developmental Immunology | 10 | 432 | 226 | 213 |
| 940 | Health insurance | 30 | 431 | 78 | 156 |
| 940 | World Wide Web | 14 | 431 | 60 | 35 |
| 942 | Finite Element Method | 14 | 429 | 71 | 50 |
| 942 | Sedimentary rocks | 4 | 429 | 523 | 219 |
| 944 | Semantics | 9 | 428 | 63 | 37 |
| 944 | Open Access Publishing | 26 | 428 | 5 | 14 |
| 946 | microwave communication systems | 6 | 425 | 251 | 111 |
| 946 | biomedicine | 15 | 425 | 94 | 146 |
| 948 | Photobiology | 13 | 424 | 523 | 477 |
| 949 | population policy | 21 | 423 | 17 | 23 |
| 950 | Eating Disorders | 12 | 420 | 360 | 326 |
| 950 | venom | 9 | 420 | 325 | 208 |
| 952 | Rock Mechanics | 27 | 418 | 227 | 406 |
| 952 | Portfolio Management | 43 | 418 | 8 | 34 |
| 954 | Indoor air quality | 28 | 413 | 4 | 3 |
| 954 | Japan | 14 | 413 | 650 | 425 |
| 956 | Zoonoses | 3 | 412 | 261 | 59 |
| 957 | Plant Taxonomy | 56 | 409 | 21 | 121 |
| 958 | pain | 15 | 407 | 489 | 581 |
| 959 | Kinetics | 14 | 404 | 108 | 79 |
| 960 | civilization | 18 | 402 | 335 | 52 |
| 961 | Sustainable agriculture | 17 | 401 | 143 | 228 |
| 962 | Plasma chemistry | 18 | 400 | 72 | 102 |
| 963 | Mass Media | 22 | 399 | 158 | 108 |
| 964 | Marine Ecology | 8 | 397 | 455 | 231 |
| 964 | Optical Communications | 21 | 397 | 156 | 180 |
| 964 | weather | 16 | 397 | 113 | 165 |
| 967 | Nanophotonics | 15 | 396 | 67 | 112 |
| 967 | air quality | 8 | 396 | 41 | 20 |
| 969 | mental processes | 17 | 395 | 82 | 80 |
| 970 | cell movement | 11 | 394 | 69 | 96 |
| 971 | Industrial Organization | 8 | 393 | 141 | 100 |
| 972 | Economic Theory | 5 | 392 | 76 | 24 |
| 972 | soil management | 12 | 392 | 193 | 261 |
| 972 | heredity | 14 | 392 | 207 | 187 |
| 975 | Regional Economics | 9 | 390 | 195 | 118 |
| 976 | Chemical kinetics | 13 | 389 | 234 | 65 |
| 977 | Nutrition physiology | 15 | 388 | 208 | 300 |
| 977 | Feeding and Eating Disorders | 10 | 388 | 386 | 333 |
| 977 | Fertilizers | 5 | 388 | 234 | 103 |
| 980 | Aerospace Engineering | 30 | 385 | 24 | 29 |
| 980 | Food Policy | 6 | 385 | 181 | 137 |
| 982 | correctional psychology | 6 | 384 | 139 | 82 |
| 983 | mammals | 21 | 383 | 263 | 325 |
| 984 | Fishery resources | 11 | 378 | 214 | 214 |
| 985 | biological invasions | 18 | 377 | 118 | 229 |
| 986 | Soil Mechanics | 24 | 375 | 334 | 503 |
| 987 | elasticity | 24 | 374 | 26 | 52 |
| 988 | police | 21 | 372 | 68 | 66 |
| 989 | Nanomedicine | 7 | 371 | 61 | 41 |
| 989 | Environmental Economics | 10 | 371 | 99 | 99 |
| 991 | drug control | 15 | 370 | 96 | 107 |
| 992 | structural stability | 13 | 367 | 90 | 150 |
| 992 | biocatalysis | 2 | 367 | 220 | 222 |
| 992 | Homogeneous catalysis | 2 | 367 | 220 | 222 |
| 992 | Heterogeneous catalysis | 2 | 367 | 220 | 222 |
| 996 | Journalism | 24 | 366 | 92 | 115 |
| 996 | Public Speaking | 20 | 366 | 36 | 28 |
| 996 | Regionalism | 7 | 366 | 87 | 38 |
| 999 | Animal genetics | 16 | 363 | 185 | 209 |
| 999 | social science | 8 | 363 | 62 | 84 |