| 1 | Biology | 1,964 | 99.4K | 145 | 272 |
| 2 | Ecology | 2,027 | 93.6K | 24 | 64 |
| 3 | Physics | 2,406 | 90.1K | 165 | 325 |
| 4 | Science | 1,844 | 88.1K | 164 | 310 |
| 5 | Biochemistry | 3,063 | 81.7K | 83 | 181 |
| 6 | Molecular Biology | 1,828 | 61.7K | 98 | 229 |
| 7 | Microbiology | 1,597 | 57.1K | 60 | 152 |
| 8 | Chemistry | 1,797 | 55.6K | 198 | 362 |
| 9 | Botany | 1,586 | 48.1K | 11 | 57 |
| 10 | Catalysis | 1,485 | 47.3K | 14 | 44 |
| 11 | Astrophysics | 1,436 | 47.1K | 83 | 205 |
| 12 | Pollution | 1,024 | 45.1K | 43 | 77 |
| 13 | Nuclear Physics | 1,792 | 44.7K | 91 | 163 |
| 14 | Medicine | 1,449 | 43.3K | 212 | 350 |
| 15 | Astronomy | 1,619 | 39.0K | 68 | 189 |
| 16 | Cytology | 797 | 38.2K | 106 | 198 |
| 17 | Research | 1,354 | 37.2K | 150 | 216 |
| 18 | Cell Biology | 566 | 35.3K | 141 | 210 |
| 19 | Natural history | 255 | 34.1K | 233 | 372 |
| 20 | Environment | 537 | 33.9K | 114 | 147 |
| 21 | Geology | 1,493 | 29.4K | 9 | 64 |
| 22 | Biotechnology | 913 | 29.0K | 64 | 193 |
| 23 | Spectrum analysis | 716 | 28.0K | 122 | 194 |
| 24 | Colloids | 779 | 27.0K | 25 | 39 |
| 25 | environmental pollution | 707 | 24.7K | 27 | 50 |
| 26 | Paleontology | 1,426 | 24.5K | 2 | 2 |
| 27 | Earth Sciences | 1,278 | 24.3K | 5 | 42 |
| 28 | Neurology | 722 | 24.0K | 221 | 351 |
| 29 | Chemical Engineering | 946 | 23.2K | 62 | 167 |
| 30 | Biophysics | 945 | 23.1K | 104 | 188 |
| 31 | Statistical physics | 1,340 | 22.4K | 14 | 79 |
| 32 | Plant Ecology | 588 | 21.4K | 3 | 5 |
| 33 | Virology | 300 | 21.1K | 165 | 231 |
| 34 | food technology | 696 | 21.0K | 7 | 12 |
| 35 | Toxicology | 718 | 20.7K | 47 | 77 |
| 36 | Polymers | 868 | 20.4K | 87 | 153 |
| 37 | Latin America | 1,506 | 19.6K | 1 | 1 |
| 38 | Biodiversity conservation | 217 | 18.2K | 35 | 52 |
| 39 | Materials | 601 | 18.1K | 309 | 411 |
| 40 | Environmental Health | 620 | 17.6K | 97 | 223 |
| 41 | Antarctica | 1,042 | 17.3K | 1 | 2 |
| 42 | Zoology | 988 | 16.8K | 2 | 8 |
| 43 | polymerization | 677 | 16.5K | 83 | 138 |
| 44 | Marine Biology | 821 | 16.3K | 8 | 50 |
| 45 | Pharmacology | 706 | 16.0K | 146 | 269 |
| 46 | Analytical Chemistry | 465 | 15.9K | 126 | 132 |
| 47 | Food | 529 | 15.6K | 16 | 33 |
| 48 | Condensed Matter | 854 | 15.4K | 115 | 239 |
| 49 | Plant physiology | 328 | 14.8K | 32 | 62 |
| 50 | Geophysics | 590 | 14.6K | 158 | 240 |
| 51 | Surface Chemistry | 678 | 14.5K | 36 | 127 |
| 52 | Solid State Physics | 777 | 13.7K | 136 | 261 |
| 53 | Physiology | 685 | 13.4K | 90 | 222 |
| 54 | Evolution | 583 | 13.4K | 4 | 86 |
| 55 | Environmental monitoring | 386 | 13.3K | 41 | 86 |
| 56 | Climate change | 82 | 12.9K | 74 | 61 |
| 57 | Eutrophication | 81 | 12.9K | 73 | 60 |
| 58 | plant communities | 265 | 12.8K | 4 | 10 |
| 59 | plant molecular biology | 199 | 12.7K | 55 | 95 |
| 60 | Food additives | 192 | 12.6K | 13 | 11 |
| 61 | Immunology | 346 | 12.3K | 185 | 304 |
| 62 | Forest Ecology | 258 | 12.3K | 13 | 15 |
| 63 | hydrocolloids | 165 | 12.2K | 12 | 10 |
| 64 | Biochemical Engineering | 370 | 12.1K | 87 | 260 |
| 65 | Nanotechnology | 381 | 11.8K | 307 | 466 |
| 66 | Bioengineering | 334 | 11.6K | 146 | 328 |
| 67 | Forest Management | 219 | 11.5K | 22 | 19 |
| 68 | Plants | 272 | 11.4K | 39 | 106 |
| 69 | environmental protection | 340 | 11.4K | 24 | 62 |
| 70 | Entomology | 695 | 10.9K | 17 | 41 |
| 71 | Genetics | 276 | 10.8K | 231 | 383 |
| 72 | Parasitology | 628 | 10.8K | 10 | 29 |
| 73 | Quantum Gravity | 551 | 10.6K | 93 | 214 |
| 74 | biological evolution | 329 | 10.6K | 40 | 164 |
| 75 | Microbial Ecology | 242 | 10.6K | 77 | 154 |
| 76 | Neurochemistry | 399 | 10.6K | 48 | 122 |
| 77 | Geography | 408 | 10.5K | 28 | 49 |
| 78 | Biomedical Engineering | 405 | 10.4K | 150 | 251 |
| 79 | Cell differentiation | 50 | 10.3K | 321 | 149 |
| 80 | Reproduction | 484 | 10.1K | 18 | 62 |
| 81 | Meteorology | 259 | 9.9K | 123 | 168 |
| 82 | Environmental Toxicology | 321 | 9.8K | 13 | 50 |
| 83 | Endocrinology | 445 | 9.7K | 104 | 287 |
| 84 | Biodiversity | 292 | 9.2K | 11 | 68 |
| 85 | Food Microbiology | 221 | 9.2K | 10 | 20 |
| 86 | Cell death | 35 | 9.1K | 262 | 100 |
| 87 | Paleoecology | 371 | 8.9K | 3 | 6 |
| 88 | Nutrition | 376 | 8.9K | 140 | 285 |
| 89 | Plant cells | 132 | 8.8K | 89 | 154 |
| 90 | Nonlinear Dynamics | 555 | 8.8K | 13 | 74 |
| 91 | Environmental pollutants | 277 | 8.6K | 9 | 23 |
| 92 | Mathematics | 885 | 8.6K | 129 | 235 |
| 93 | Bacteriology | 222 | 8.5K | 80 | 153 |
| 94 | Mathematical Physics | 543 | 8.5K | 31 | 131 |
| 95 | Plant diseases | 374 | 8.3K | 37 | 56 |
| 96 | Neurophysiology | 306 | 8.2K | 159 | 307 |
| 97 | Water pollution | 283 | 8.1K | 55 | 150 |
| 98 | Environmental Policy | 182 | 8.0K | 129 | 191 |
| 99 | Pharmaceutical Chemistry | 315 | 8.0K | 143 | 264 |
| 100 | Climatology | 234 | 7.9K | 71 | 130 |
| 101 | Electrochemistry | 486 | 7.8K | 134 | 242 |
| 102 | Paleoclimatology | 311 | 7.7K | 3 | 14 |
| 103 | Photochemistry | 301 | 7.6K | 3 | 10 |
| 104 | Environmental Management | 218 | 7.5K | 52 | 100 |
| 105 | Anatomy | 375 | 7.3K | 32 | 132 |
| 106 | Optics | 506 | 7.2K | 198 | 288 |
| 107 | soil microbiology | 158 | 7.2K | 55 | 91 |
| 108 | Biocompatible Materials | 196 | 7.2K | 354 | 488 |
| 109 | pollutants | 209 | 7.2K | 16 | 26 |
| 110 | Histology | 127 | 7.0K | 82 | 74 |
| 111 | Nanostructured Materials | 314 | 7.0K | 127 | 268 |
| 112 | Mycology | 222 | 6.9K | 28 | 43 |
| 113 | Hormones | 290 | 6.8K | 5 | 31 |
| 114 | Industrial Microbiology | 246 | 6.8K | 12 | 44 |
| 115 | Genomics | 232 | 6.8K | 121 | 193 |
| 116 | Cancer | 179 | 6.8K | 332 | 445 |
| 117 | Paleogeography | 247 | 6.8K | 3 | 8 |
| 118 | Materials Science | 358 | 6.7K | 278 | 538 |
| 119 | Membranes | 227 | 6.6K | 45 | 118 |
| 120 | Sustainable Development | 76 | 6.6K | 81 | 50 |
| 121 | Organic Chemistry | 276 | 6.5K | 107 | 190 |
| 122 | environmental exposure | 175 | 6.4K | 20 | 23 |
| 123 | free radicals | 151 | 6.3K | 25 | 62 |
| 124 | Oceanography | 215 | 6.3K | 107 | 150 |
| 125 | biological invasions | 175 | 6.2K | 1 | 2 |
| 126 | Parasitic Diseases | 290 | 6.2K | 19 | 60 |
| 127 | Developmental Biology | 181 | 6.2K | 140 | 257 |
| 128 | Immunity | 116 | 6.0K | 188 | 354 |
| 129 | Molecular Genetics | 167 | 6.0K | 74 | 144 |
| 130 | Composite Materials | 161 | 6.0K | 204 | 232 |
| 131 | Biomass Energy | 150 | 5.9K | 93 | 168 |
| 132 | Wildlife conservation | 147 | 5.9K | 24 | 52 |
| 133 | Medical Microbiology | 173 | 5.9K | 117 | 217 |
| 134 | Bioorganic chemistry | 203 | 5.8K | 107 | 175 |
| 135 | Neurobiology | 187 | 5.8K | 98 | 204 |
| 136 | mammals | 337 | 5.7K | 1 | 12 |
| 137 | Agricultural Chemistry | 136 | 5.6K | 148 | 127 |
| 138 | ecosystem | 180 | 5.5K | 5 | 56 |
| 139 | Biogeography | 127 | 5.5K | 9 | 41 |
| 139 | Molecular structure | 181 | 5.5K | 54 | 143 |
| 141 | Psychophysiology | 181 | 5.4K | 245 | 365 |
| 142 | Archaeology | 488 | 5.3K | 4 | 48 |
| 143 | nucleic acids | 54 | 5.2K | 334 | 284 |
| 144 | Animal ecology | 217 | 5.1K | 9 | 65 |
| 145 | Parasites | 240 | 5.0K | 20 | 39 |
| 146 | global environmental change | 46 | 5.0K | 65 | 29 |
| 147 | Metals | 59 | 4.9K | 395 | 200 |
| 148 | Photobiology | 191 | 4.9K | 3 | 7 |
| 149 | Technology | 214 | 4.8K | 221 | 295 |
| 150 | Water | 135 | 4.8K | 190 | 321 |
| 151 | Environmental Engineering | 162 | 4.8K | 232 | 405 |
| 152 | Geochemistry | 172 | 4.7K | 183 | 253 |
| 153 | Birds | 341 | 4.7K | 12 | 33 |
| 154 | Animal Behavior | 228 | 4.7K | 94 | 232 |
| 155 | Insects | 299 | 4.6K | 10 | 41 |
| 156 | Molecular evolution | 140 | 4.5K | 50 | 139 |
| 157 | Industrial Engineering | 242 | 4.4K | 26 | 71 |
| 158 | Tropical Medicine | 239 | 4.4K | 19 | 33 |
| 159 | Geodynamics | 133 | 4.3K | 28 | 54 |
| 160 | Human genetics | 17 | 4.3K | 1033 | 846 |
| 161 | Renewable Energy Sources | 93 | 4.2K | 222 | 353 |
| 162 | Surface properties | 157 | 4.2K | 7 | 16 |
| 163 | Fisheries | 216 | 4.2K | 44 | 99 |
| 164 | Environmental Microbiology | 107 | 4.2K | 39 | 113 |
| 165 | Agriculture | 138 | 4.2K | 109 | 141 |
| 166 | Surface-Active Agents | 156 | 4.1K | 7 | 17 |
| 167 | Molecules | 200 | 4.1K | 21 | 69 |
| 168 | Behavior | 142 | 4.0K | 293 | 451 |
| 169 | polar regions | 249 | 4.0K | 7 | 10 |
| 170 | Fungi | 103 | 4.0K | 42 | 72 |
| 171 | Memory | 117 | 4.0K | 175 | 194 |
| 172 | Hydrology | 225 | 4.0K | 81 | 219 |
| 173 | Brain | 160 | 3.9K | 242 | 413 |
| 174 | Neuropsychology | 170 | 3.9K | 128 | 223 |
| 175 | Marine Pollution | 139 | 3.9K | 18 | 51 |
| 176 | Plant Genetics | 57 | 3.8K | 44 | 48 |
| 177 | Microbial Biotechnology | 96 | 3.8K | 8 | 4 |
| 178 | Soil Science | 159 | 3.8K | 76 | 141 |
| 179 | Signal Processing | 96 | 3.8K | 357 | 341 |
| 180 | Bioinorganic chemistry | 162 | 3.8K | 7 | 20 |
| 181 | nanoscience | 104 | 3.8K | 373 | 492 |
| 182 | Embryology | 116 | 3.8K | 138 | 246 |
| 183 | Clinical Chemistry | 121 | 3.7K | 278 | 336 |
| 184 | Medical Laboratory Science | 139 | 3.7K | 94 | 233 |
| 185 | Oxidative stress | 51 | 3.7K | 35 | 29 |
| 186 | Ethnology | 236 | 3.6K | 15 | 26 |
| 187 | Vaccines | 135 | 3.6K | 101 | 141 |
| 188 | Ornithology | 269 | 3.6K | 8 | 29 |
| 189 | Atmospheric Physics | 141 | 3.6K | 163 | 248 |
| 190 | human behavior | 108 | 3.5K | 229 | 417 |
| 191 | Argentina | 341 | 3.4K | 1 | 1 |
| 192 | Soil ecology | 75 | 3.4K | 25 | 28 |
| 193 | Immunotherapy | 74 | 3.4K | 214 | 279 |
| 194 | Pharmacognosy | 115 | 3.4K | 86 | 126 |
| 195 | Computational Biology | 114 | 3.3K | 211 | 371 |
| 196 | Building Materials | 67 | 3.3K | 223 | 188 |
| 197 | Breeding | 157 | 3.3K | 46 | 89 |
| 198 | Australia | 238 | 3.3K | 58 | 80 |
| 199 | Lipids | 105 | 3.3K | 48 | 118 |
| 200 | Medical genetics | 73 | 3.3K | 519 | 617 |
| 201 | Ethology | 130 | 3.2K | 123 | 254 |
| 202 | Virulence | 47 | 3.2K | 182 | 202 |
| 203 | Planets | 81 | 3.2K | 284 | 311 |
| 204 | proteins | 186 | 3.2K | 64 | 218 |
| 205 | Signal Transduction | 71 | 3.2K | 102 | 156 |
| 206 | Solar System | 119 | 3.2K | 69 | 104 |
| 207 | Ocean Engineering | 132 | 3.2K | 111 | 158 |
| 208 | Mineralogy | 133 | 3.1K | 86 | 155 |
| 209 | Geomorphology | 112 | 3.1K | 44 | 126 |
| 210 | United Kingdom | 104 | 3.1K | 109 | 202 |
| 211 | Phylogeny | 113 | 3.1K | 13 | 59 |
| 212 | Host-parasite interactions | 62 | 3.1K | 146 | 255 |
| 213 | Biodegradation | 77 | 3.1K | 3 | 7 |
| 214 | Metallurgy | 105 | 3.1K | 284 | 310 |
| 215 | Learning | 123 | 3.1K | 71 | 154 |
| 216 | Metabolism | 92 | 3.0K | 410 | 610 |
| 216 | Economic Development | 61 | 3.0K | 171 | 167 |
| 218 | Agricultural Ecology | 90 | 3.0K | 41 | 103 |
| 219 | Physical Chemistry | 163 | 2.9K | 110 | 308 |
| 220 | Oxidation-reduction | 41 | 2.9K | 70 | 81 |
| 221 | Environmental Chemistry | 65 | 2.9K | 212 | 353 |
| 222 | Plant Morphology | 196 | 2.9K | 2 | 3 |
| 223 | Antioxidants | 38 | 2.9K | 54 | 62 |
| 224 | Public Health | 125 | 2.9K | 628 | 847 |
| 225 | Molecular ecology | 55 | 2.9K | 134 | 195 |
| 226 | Fluid Mechanics | 127 | 2.9K | 82 | 137 |
| 227 | Developing countries | 91 | 2.8K | 175 | 193 |
| 228 | environmental indicators | 87 | 2.8K | 24 | 38 |
| 229 | Green Chemistry | 49 | 2.8K | 297 | 271 |
| 230 | Evolutionary Genetics | 76 | 2.8K | 11 | 9 |
| 230 | Molecular Epidemiology | 76 | 2.8K | 11 | 9 |
| 232 | Drug design | 102 | 2.8K | 39 | 83 |
| 233 | Bioremediation | 68 | 2.8K | 6 | 8 |
| 234 | Engineering Mathematics | 99 | 2.7K | 110 | 84 |
| 235 | bees | 114 | 2.7K | 4 | 10 |
| 236 | Environmental Geology | 118 | 2.7K | 30 | 68 |
| 236 | Light | 110 | 2.7K | 21 | 205 |
| 238 | Population Genetics | 51 | 2.7K | 176 | 204 |
| 239 | Automation | 108 | 2.7K | 230 | 402 |
| 239 | Radiation | 182 | 2.7K | 58 | 125 |
| 241 | freshwater biology | 114 | 2.6K | 8 | 51 |
| 242 | Economic History | 110 | 2.6K | 279 | 277 |
| 243 | animals | 252 | 2.6K | 6 | 41 |
| 244 | genome | 43 | 2.6K | 279 | 373 |
| 245 | Conservation Biology | 84 | 2.6K | 59 | 133 |
| 246 | miniaturization | 65 | 2.5K | 273 | 403 |
| 247 | clay | 78 | 2.5K | 17 | 33 |
| 248 | soil management | 64 | 2.5K | 26 | 34 |
| 249 | enzymes | 122 | 2.5K | 54 | 140 |
| 250 | cytokines | 52 | 2.5K | 102 | 70 |
| 251 | Medicinal plants | 71 | 2.5K | 83 | 118 |
| 252 | Steroids | 134 | 2.5K | 15 | 62 |
| 253 | Quality Control | 65 | 2.5K | 93 | 81 |
| 254 | Zeolites | 97 | 2.5K | 19 | 43 |
| 255 | Soil biology | 46 | 2.4K | 135 | 175 |
| 256 | Ceramic materials | 100 | 2.4K | 53 | 78 |
| 257 | actuators | 90 | 2.4K | 184 | 285 |
| 257 | transducers | 90 | 2.4K | 184 | 285 |
| 259 | Immunopathology | 77 | 2.4K | 124 | 151 |
| 260 | Electronics | 113 | 2.4K | 495 | 551 |
| 261 | Plastics | 104 | 2.4K | 70 | 104 |
| 262 | Biopharmaceutics | 61 | 2.4K | 59 | 74 |
| 263 | Physical organic chemistry | 91 | 2.3K | 49 | 65 |
| 264 | Plant Taxonomy | 76 | 2.3K | 19 | 16 |
| 265 | Paleobiology | 186 | 2.3K | 2 | 2 |
| 266 | supercritical fluids | 87 | 2.3K | 8 | 14 |
| 267 | tillage | 52 | 2.3K | 22 | 29 |
| 268 | food handling | 62 | 2.3K | 34 | 38 |
| 269 | Liver diseases | 36 | 2.3K | 363 | 402 |
| 270 | drugs | 65 | 2.3K | 265 | 213 |
| 271 | Electrophoresis | 104 | 2.3K | 59 | 114 |
| 272 | Sun | 88 | 2.3K | 38 | 58 |
| 272 | Radiation effects | 38 | 2.3K | 29 | 19 |
| 274 | Data Mining | 54 | 2.3K | 123 | 188 |
| 275 | Cosmology | 80 | 2.3K | 15 | 49 |
| 276 | Engineering | 117 | 2.3K | 392 | 445 |
| 277 | Petrology | 73 | 2.3K | 125 | 168 |
| 278 | Perception | 66 | 2.2K | 300 | 295 |
| 279 | Psychiatry | 91 | 2.2K | 685 | 965 |
| 280 | Visual Perception | 59 | 2.2K | 270 | 240 |
| 281 | Cellulose | 32 | 2.2K | 66 | 44 |
| 282 | Aquatic ecology | 122 | 2.2K | 9 | 24 |
| 283 | Anthropology | 243 | 2.2K | 55 | 138 |
| 284 | Pharmacy | 104 | 2.1K | 176 | 264 |
| 285 | United States | 106 | 2.1K | 647 | 799 |
| 286 | gene mapping | 64 | 2.1K | 252 | 394 |
| 287 | Sedimentary rocks | 83 | 2.1K | 7 | 20 |
| 288 | Metabolic diseases | 71 | 2.1K | 384 | 653 |
| 289 | Computer Vision | 12 | 2.1K | 519 | 215 |
| 290 | Cell survival | 21 | 2.1K | 8 | 3 |
| 290 | molecular chaperones | 22 | 2.1K | 9 | 3 |
| 292 | biopolymers | 90 | 2.1K | 78 | 145 |
| 293 | natural products | 143 | 2.1K | 40 | 145 |
| 294 | Attention | 56 | 2.0K | 295 | 253 |
| 295 | data collection | 41 | 2.0K | 84 | 141 |
| 296 | nuclear astrophysics | 67 | 2.0K | 13 | 35 |
| 297 | Bioinformatics | 79 | 2.0K | 221 | 419 |
| 298 | cell physiology | 65 | 2.0K | 187 | 353 |
| 299 | Psychology | 180 | 2.0K | 460 | 852 |
| 300 | Microelectronics | 48 | 2.0K | 390 | 425 |
| 301 | Artificial Intelligence | 117 | 2.0K | 353 | 695 |
| 302 | coal | 55 | 2.0K | 217 | 245 |
| 303 | Marine Ecology | 140 | 2.0K | 5 | 25 |
| 304 | Animal breeding | 133 | 2.0K | 20 | 58 |
| 305 | Molecular Spectroscopy | 108 | 2.0K | 59 | 106 |
| 306 | Electrical Engineering | 181 | 1.9K | 258 | 341 |
| 307 | Neurons | 10 | 1.9K | 338 | 361 |
| 308 | Sites | 58 | 1.9K | 35 | 67 |
| 309 | Chromosome mapping | 62 | 1.9K | 216 | 319 |
| 309 | protein | 99 | 1.9K | 63 | 203 |
| 311 | dietary supplements | 36 | 1.9K | 56 | 34 |
| 312 | Crystallography | 160 | 1.9K | 40 | 125 |
| 313 | Economics | 117 | 1.9K | 578 | 731 |
| 314 | Soft Condensed Matter | 101 | 1.9K | 62 | 138 |
| 314 | food contamination | 119 | 1.9K | 13 | 32 |
| 316 | Primates | 60 | 1.9K | 64 | 66 |
| 317 | Comparative Physiology | 82 | 1.9K | 34 | 73 |
| 317 | Food Preservation | 112 | 1.9K | 9 | 14 |
| 319 | Aging | 70 | 1.9K | 443 | 512 |
| 320 | Catalysts | 90 | 1.9K | 10 | 30 |
| 321 | Power Electronics | 41 | 1.8K | 215 | 226 |
| 322 | biological factors | 105 | 1.8K | 63 | 250 |
| 323 | Solid State Chemistry | 161 | 1.8K | 130 | 317 |
| 324 | Morphology | 121 | 1.8K | 5 | 41 |
| 325 | mathematical analysis | 247 | 1.8K | 47 | 199 |
| 326 | disease vectors | 73 | 1.8K | 44 | 75 |
| 327 | Energy Conversion | 18 | 1.8K | 504 | 415 |
| 328 | Japan | 106 | 1.8K | 123 | 124 |
| 329 | Microorganisms | 63 | 1.7K | 55 | 208 |
| 330 | Energy Policy | 59 | 1.7K | 394 | 615 |
| 331 | Cognition | 83 | 1.7K | 219 | 344 |
| 332 | Nervous system | 51 | 1.7K | 489 | 645 |
| 333 | Sedimentology | 66 | 1.7K | 19 | 47 |
| 334 | prostaglandins | 128 | 1.7K | 3 | 22 |
| 335 | Electrochemical Analysis | 117 | 1.7K | 51 | 170 |
| 336 | Genetic engineering | 69 | 1.7K | 222 | 448 |
| 337 | Ecosystem management | 49 | 1.7K | 40 | 71 |
| 338 | sustainability | 24 | 1.7K | 143 | 130 |
| 339 | viruses | 46 | 1.7K | 318 | 443 |
| 340 | Statistics | 120 | 1.7K | 286 | 447 |
| 341 | Structural Engineering | 62 | 1.7K | 250 | 251 |
| 342 | Cheminformatics | 11 | 1.6K | 67 | 42 |
| 343 | Information Systems | 69 | 1.6K | 61 | 114 |
| 344 | China | 108 | 1.6K | 281 | 330 |
| 345 | concrete | 37 | 1.6K | 162 | 211 |
| 346 | starch | 50 | 1.6K | 7 | 7 |
| 347 | Sustainable Engineering | 39 | 1.6K | 285 | 294 |
| 348 | Diagnostic microbiology | 39 | 1.6K | 228 | 404 |
| 349 | Europe | 128 | 1.6K | 252 | 452 |
| 350 | Optical materials | 60 | 1.6K | 509 | 704 |
| 351 | Hematology | 51 | 1.6K | 789 | 852 |
| 352 | Hazardous waste | 25 | 1.6K | 132 | 107 |
| 353 | Immunopharmacology | 46 | 1.6K | 122 | 79 |
| 354 | Growth | 36 | 1.6K | 261 | 385 |
| 355 | radioactive waste | 24 | 1.5K | 94 | 96 |
| 355 | industrial waste | 24 | 1.5K | 105 | 95 |
| 357 | world | 17 | 1.5K | 210 | 125 |
| 358 | Land use | 52 | 1.5K | 70 | 92 |
| 359 | Herbal medicine | 53 | 1.5K | 46 | 50 |
| 360 | Pharmaceutical Technology | 62 | 1.5K | 136 | 225 |
| 361 | Pesticides | 90 | 1.5K | 15 | 31 |
| 362 | Fracture mechanics | 103 | 1.5K | 104 | 206 |
| 363 | soil conservation | 43 | 1.5K | 36 | 30 |
| 364 | Nanostructures | 44 | 1.4K | 287 | 462 |
| 365 | Dynamics | 98 | 1.4K | 45 | 84 |
| 365 | cell interaction | 32 | 1.4K | 147 | 130 |
| 367 | Molecular Microbiology | 42 | 1.4K | 140 | 267 |
| 368 | Pathology | 43 | 1.4K | 545 | 627 |
| 369 | Drug delivery systems | 77 | 1.4K | 89 | 318 |
| 370 | vitamin C | 23 | 1.4K | 26 | 22 |
| 370 | vitamin E | 23 | 1.4K | 26 | 22 |
| 372 | natural disasters | 43 | 1.4K | 93 | 141 |
| 373 | Agricultural Science | 37 | 1.4K | 27 | 49 |
| 374 | Scandinavia | 59 | 1.4K | 36 | 54 |
| 375 | sanitation | 28 | 1.4K | 446 | 588 |
| 376 | Radioisotopes | 113 | 1.4K | 36 | 62 |
| 377 | Aquaculture | 91 | 1.4K | 137 | 268 |
| 378 | Development | 22 | 1.3K | 170 | 136 |
| 379 | Environmental Law | 7 | 1.3K | 697 | 308 |
| 380 | Ophthalmology | 46 | 1.3K | 424 | 452 |
| 381 | Atmospheric Chemistry | 29 | 1.3K | 287 | 342 |
| 382 | Biosensors | 27 | 1.3K | 301 | 354 |
| 383 | Chromatographic analysis | 67 | 1.3K | 178 | 205 |
| 384 | Medical Physics | 34 | 1.3K | 507 | 462 |
| 385 | Entropy | 94 | 1.3K | 8 | 22 |
| 386 | Agronomy | 56 | 1.3K | 60 | 103 |
| 387 | Paleopathology | 93 | 1.3K | 1 | 6 |
| 388 | Herpetology | 94 | 1.2K | 1 | 1 |
| 389 | Carbohydrates | 40 | 1.2K | 28 | 53 |
| 390 | Reptiles | 87 | 1.2K | 1 | 1 |
| 391 | Immune system | 26 | 1.2K | 265 | 482 |
| 392 | Economic Assistance | 16 | 1.2K | 193 | 134 |
| 393 | Continental shelf | 44 | 1.2K | 37 | 67 |
| 394 | Analytical Biochemistry | 71 | 1.2K | 126 | 305 |
| 395 | Disease | 16 | 1.2K | 53 | 320 |
| 396 | Cytogenetics | 44 | 1.2K | 268 | 521 |
| 397 | alcoholism | 81 | 1.2K | 187 | 354 |
| 398 | Algae | 50 | 1.2K | 73 | 127 |
| 399 | Inflammation | 31 | 1.2K | 180 | 217 |
| 400 | Coastal zone management | 36 | 1.2K | 44 | 40 |
| 401 | Raman spectroscopy | 82 | 1.2K | 15 | 51 |
| 402 | glycoproteins | 42 | 1.2K | 29 | 62 |
| 402 | Glycoconjugates | 42 | 1.2K | 29 | 62 |
| 402 | glycolipids | 42 | 1.2K | 29 | 62 |
| 405 | Ecophysiology | 75 | 1.2K | 1 | 2 |
| 406 | Earthquake Engineering | 38 | 1.2K | 318 | 325 |
| 406 | Numerical Analysis | 116 | 1.2K | 122 | 311 |
| 408 | Cerebral cortex | 26 | 1.1K | 244 | 270 |
| 409 | Oligosaccharide | 37 | 1.1K | 20 | 49 |
| 410 | Nanoparticles | 40 | 1.1K | 344 | 462 |
| 411 | Toxins | 57 | 1.1K | 43 | 88 |
| 412 | Plant genetic engineering | 45 | 1.1K | 117 | 236 |
| 412 | Chemical industry | 64 | 1.1K | 124 | 109 |
| 414 | Biogeochemistry | 32 | 1.1K | 269 | 373 |
| 415 | Psychopharmacology | 40 | 1.1K | 326 | 535 |
| 415 | mycoses | 64 | 1.1K | 31 | 277 |
| 417 | Astrocytes | 20 | 1.1K | 90 | 128 |
| 417 | Bioelectronics | 19 | 1.1K | 335 | 345 |
| 419 | Histochemistry | 44 | 1.1K | 98 | 142 |
| 420 | venom | 55 | 1.1K | 39 | 83 |
| 421 | Systems Biology | 68 | 1.1K | 125 | 253 |
| 421 | Chromatography | 52 | 1.1K | 184 | 206 |
| 423 | Chromosomes | 47 | 1.1K | 100 | 202 |
| 423 | fertility | 46 | 1.1K | 182 | 318 |
| 425 | nuclear magnetic resonance spectroscopy | 54 | 1.1K | 46 | 82 |
| 426 | Operations Research | 75 | 1.1K | 271 | 512 |
| 427 | Diagnostic Imaging | 27 | 1.1K | 567 | 495 |
| 428 | RNA | 10 | 1.1K | 231 | 96 |
| 429 | Magnetic Resonance Spectroscopy | 71 | 1.1K | 125 | 226 |
| 429 | Marine resources | 29 | 1.1K | 75 | 62 |
| 431 | Engineering Geology | 37 | 1.1K | 277 | 293 |
| 431 | Extreme environments | 28 | 1.1K | 7 | 13 |
| 433 | Gene expression regulation | 29 | 1.1K | 180 | 286 |
| 434 | Ecohydrology | 55 | 1.1K | 3 | 13 |
| 435 | Hypertension | 26 | 1.1K | 531 | 707 |
| 435 | Invertebrates | 77 | 1.1K | 14 | 65 |
| 437 | bioclimatology | 57 | 1.1K | 24 | 91 |
| 438 | Atomic spectroscopy | 64 | 1.0K | 85 | 165 |
| 439 | Image Processing | 25 | 1.0K | 775 | 657 |
| 440 | Immunochemistry | 53 | 1.0K | 62 | 135 |
| 440 | Plant breeding | 42 | 1.0K | 91 | 109 |
| 442 | System analysis | 67 | 1.0K | 273 | 458 |
| 443 | Infertility | 38 | 1.0K | 204 | 325 |
| 444 | Allergy | 8 | 1.0K | 769 | 576 |
| 445 | Oncogenes | 21 | 1.0K | 415 | 549 |
| 446 | Manufacturing Processes | 27 | 1.0K | 736 | 569 |
| 447 | Oncology | 47 | 1.0K | 445 | 1218 |
| 448 | Public Policy | 23 | 1.0K | 503 | 375 |
| 448 | diseases | 4 | 1.0K | 258 | 367 |
| 450 | Food preferences | 28 | 1.0K | 42 | 53 |
| 451 | Lightweight concrete | 12 | 992 | 141 | 131 |
| 452 | Recombinant DNA | 44 | 988 | 200 | 320 |
| 453 | Proteome | 48 | 973 | 152 | 369 |
| 454 | mass transfer | 58 | 971 | 241 | 462 |
| 455 | infection | 39 | 969 | 338 | 498 |
| 456 | behavioral medicine | 15 | 968 | 493 | 384 |
| 457 | drug therapy | 28 | 948 | 734 | 701 |
| 458 | body temperature | 53 | 947 | 2 | 14 |
| 459 | Mollusks | 75 | 940 | 1 | 2 |
| 460 | Microbial Genetics | 16 | 934 | 73 | 62 |
| 460 | phytopathogenic bacteria | 16 | 934 | 56 | 61 |
| 462 | Genetic Toxicology | 31 | 933 | 35 | 79 |
| 462 | drug evaluation | 53 | 933 | 93 | 182 |
| 464 | Solar Energy | 37 | 931 | 275 | 468 |
| 465 | Plant tissue culture | 37 | 927 | 65 | 110 |
| 465 | Plant cell culture | 36 | 927 | 53 | 108 |
| 467 | Molecular cloning | 46 | 925 | 164 | 319 |
| 468 | Medical Oncology | 35 | 923 | 483 | 643 |
| 469 | Human biology | 63 | 922 | 23 | 65 |
| 470 | Functional Analysis | 81 | 920 | 76 | 179 |
| 471 | Quantum theory | 71 | 916 | 54 | 153 |
| 472 | Genetic recombination | 43 | 902 | 170 | 320 |
| 473 | drug toxicity | 44 | 900 | 4 | 18 |
| 474 | Carbon | 27 | 898 | 321 | 508 |
| 475 | land degradation | 27 | 897 | 29 | 27 |
| 475 | degradation | 27 | 897 | 29 | 27 |
| 477 | Landscape Ecology | 34 | 893 | 32 | 101 |
| 478 | Informatics | 41 | 880 | 58 | 155 |
| 479 | water supply | 26 | 878 | 242 | 301 |
| 480 | Genetic regulation | 25 | 877 | 294 | 472 |
| 481 | Amphibians | 68 | 876 | 1 | 1 |
| 482 | Metallography | 38 | 871 | 103 | 121 |
| 483 | NMR | 40 | 858 | 19 | 20 |
| 484 | Agricultural systems | 34 | 857 | 33 | 69 |
| 485 | probabilities | 59 | 849 | 167 | 169 |
| 486 | Obesity | 31 | 848 | 533 | 705 |
| 487 | energy conservation | 44 | 846 | 342 | 769 |
| 488 | food industry | 65 | 839 | 22 | 23 |
| 489 | Computer-Aided Design | 46 | 827 | 136 | 236 |
| 490 | Photonics | 32 | 826 | 582 | 744 |
| 491 | Molecular Pharmacology | 22 | 823 | 182 | 230 |
| 492 | Diet | 18 | 822 | 793 | 831 |
| 493 | Marine mammals | 46 | 811 | 19 | 39 |
| 494 | Neurotoxicology | 33 | 810 | 35 | 90 |
| 495 | Agricultural Engineering | 20 | 809 | 84 | 62 |
| 495 | Algal blooms | 24 | 809 | 35 | 83 |
| 495 | Cyanobacteria | 24 | 809 | 35 | 83 |
| 495 | microalgae | 24 | 809 | 35 | 83 |
| 499 | Taste | 25 | 801 | 22 | 20 |
| 499 | smell | 25 | 801 | 22 | 20 |
| 501 | atmosphere | 49 | 800 | 60 | 146 |
| 502 | Crystallization | 23 | 799 | 89 | 54 |
| 503 | Sociology | 69 | 797 | 425 | 776 |
| 503 | Social behavior | 41 | 797 | 185 | 353 |
| 505 | Lipid metabolism | 31 | 795 | 22 | 101 |
| 505 | Lipid | 31 | 795 | 21 | 102 |
| 507 | Neuroimmunology | 30 | 784 | 113 | 224 |
| 508 | Volcanoes | 23 | 783 | 51 | 55 |
| 509 | Robotics | 33 | 782 | 412 | 458 |
| 510 | Petroleum Geology | 38 | 775 | 78 | 141 |
| 511 | Psychoneuroimmunology | 28 | 768 | 97 | 206 |
| 512 | Drying | 38 | 766 | 21 | 46 |
| 513 | Mechanical Engineering | 48 | 765 | 506 | 501 |
| 514 | Social Sciences | 105 | 763 | 310 | 684 |
| 514 | Biomolecules | 15 | 763 | 96 | 129 |
| 514 | Cell communication | 13 | 763 | 133 | 104 |
| 517 | Developmental Genetics | 8 | 762 | 318 | 314 |
| 517 | Marine Geology | 36 | 762 | 89 | 144 |
| 519 | Biomass | 21 | 759 | 88 | 146 |
| 520 | Yeast | 24 | 749 | 50 | 79 |
| 521 | Water quality management | 56 | 748 | 198 | 378 |
| 522 | plasticity | 10 | 747 | 164 | 138 |
| 522 | Calorimetry | 47 | 747 | 96 | 124 |
| 522 | Thermal analysis | 47 | 747 | 96 | 124 |
| 525 | gene therapy | 22 | 746 | 304 | 419 |
| 526 | Serology | 23 | 745 | 56 | 54 |
| 527 | plant oils | 44 | 735 | 12 | 10 |
| 528 | Process Control | 37 | 734 | 77 | 336 |
| 529 | Enzyme | 26 | 729 | 49 | 105 |
| 530 | Palynology | 51 | 727 | 4 | 5 |
| 530 | embryonic development | 42 | 727 | 17 | 73 |
| 530 | Seaweed | 27 | 727 | 100 | 153 |
| 533 | heredity | 41 | 725 | 57 | 115 |
| 534 | Control Theory | 69 | 722 | 236 | 447 |
| 534 | Wetland ecology | 47 | 722 | 13 | 68 |
| 534 | libraries | 3 | 722 | 576 | 48 |
| 537 | Statistical Mechanics | 63 | 721 | 65 | 129 |
| 538 | Edible plants | 51 | 720 | 2 | 10 |
| 538 | Stem cells | 34 | 720 | 378 | 619 |
| 540 | Therapeutics | 18 | 719 | 659 | 672 |
| 541 | Cosmochemistry | 17 | 713 | 300 | 283 |
| 542 | Veterinary Pathology | 54 | 711 | 8 | 20 |
| 543 | Chemical structure | 16 | 705 | 79 | 22 |
| 544 | Clinical Biochemistry | 26 | 703 | 298 | 337 |
| 544 | plankton | 26 | 703 | 11 | 15 |
| 546 | Endocrine glands | 6 | 702 | 156 | 124 |
| 547 | Philosophy | 122 | 696 | 137 | 221 |
| 547 | Chemical kinetics | 90 | 696 | 13 | 46 |
| 549 | Solitons | 59 | 692 | 51 | 189 |
| 549 | Fractals | 59 | 692 | 51 | 189 |
| 549 | Chaos | 59 | 692 | 51 | 189 |
| 552 | Mental illness | 27 | 691 | 571 | 904 |
| 553 | Reproductive health | 34 | 689 | 108 | 177 |
| 554 | Proteomics | 26 | 688 | 238 | 393 |
| 555 | Epidemiology | 40 | 686 | 926 | 1310 |
| 555 | Mass Spectrometry | 45 | 686 | 169 | 363 |
| 557 | Meteorites | 37 | 685 | 245 | 477 |
| 558 | Cognitive Science | 45 | 683 | 213 | 530 |
| 559 | Rock deformation | 22 | 670 | 12 | 18 |
| 560 | Hippocampus | 18 | 663 | 61 | 117 |
| 561 | cell adhesion molecules | 6 | 660 | 73 | 38 |
| 562 | Ethnoarchaeology | 44 | 658 | 2 | 19 |
| 563 | Computer Graphics | 44 | 652 | 332 | 543 |
| 563 | ethanol | 41 | 652 | 46 | 103 |
| 565 | Ichnology | 24 | 651 | 6 | 3 |
| 565 | Trace fossils | 24 | 651 | 6 | 3 |
| 565 | California | 36 | 651 | 65 | 80 |
| 568 | Mental Disorders | 28 | 643 | 907 | 1288 |
| 569 | Cement | 23 | 641 | 135 | 274 |
| 570 | Hydrometeorology | 7 | 638 | 118 | 94 |
| 571 | Ecological Genetics | 29 | 633 | 55 | 59 |
| 572 | Organometallic chemistry | 72 | 632 | 133 | 396 |
| 572 | Microscopy | 46 | 632 | 159 | 312 |
| 574 | energy resources | 18 | 631 | 454 | 727 |
| 575 | Chemical analysis | 23 | 630 | 267 | 304 |
| 576 | Technological Innovations | 36 | 628 | 93 | 229 |
| 577 | Ultrasonics | 19 | 622 | 358 | 391 |
| 578 | Genetic therapy | 20 | 619 | 368 | 465 |
| 579 | Nitric oxide | 23 | 612 | 11 | 24 |
| 580 | Pharmacogenetics | 18 | 609 | 314 | 346 |
| 581 | Bioenergetics | 36 | 606 | 101 | 296 |
| 581 | Medical Anthropology | 33 | 606 | 255 | 529 |
| 583 | Pharmacokinetics | 26 | 603 | 135 | 240 |
| 584 | Logic | 65 | 598 | 11 | 40 |
| 585 | Autoimmunity | 18 | 597 | 219 | 315 |
| 586 | Hydraulic Engineering | 30 | 594 | 216 | 262 |
| 586 | Transgenic plants | 21 | 594 | 77 | 129 |
| 588 | Geodesy | 34 | 593 | 72 | 115 |
| 588 | Magnetic Materials | 35 | 593 | 355 | 532 |
| 590 | Ichthyology | 46 | 589 | 22 | 29 |
| 590 | Ore deposits | 25 | 589 | 115 | 144 |
| 592 | Waste management | 45 | 588 | 150 | 288 |
| 593 | wind erosion | 24 | 586 | 5 | 19 |
| 594 | cryosphere | 9 | 583 | 199 | 148 |
| 595 | Plant Biotechnology | 18 | 582 | 217 | 259 |
| 596 | economic conditions | 12 | 581 | 174 | 148 |
| 597 | soil pollution | 19 | 576 | 61 | 60 |
| 598 | Adsorption | 42 | 575 | 3 | 17 |
| 599 | Economic Thought | 10 | 574 | 104 | 137 |
| 600 | sedimentary basins | 27 | 573 | 20 | 49 |
| 601 | Chemical Ecology | 22 | 565 | 109 | 159 |
| 601 | Algebra | 104 | 565 | 81 | 182 |
| 601 | Animal genetics | 29 | 565 | 127 | 172 |
| 604 | Insect biochemistry | 25 | 564 | 80 | 146 |
| 605 | Education | 108 | 562 | 392 | 951 |
| 605 | Rheology | 25 | 562 | 116 | 161 |
| 607 | Ceramics | 29 | 561 | 390 | 458 |
| 608 | Combinatorial chemistry | 20 | 559 | 206 | 350 |
| 609 | Clinical Pharmacology | 29 | 552 | 339 | 448 |
| 609 | transport vesicles | 5 | 552 | 141 | 275 |
| 611 | epilepsy | 27 | 551 | 200 | 274 |
| 612 | Fish | 37 | 549 | 12 | 26 |
| 613 | Veterinary Immunology | 40 | 547 | 43 | 86 |
| 613 | Mites | 31 | 547 | 50 | 52 |
| 615 | Sonochemistry | 15 | 544 | 129 | 216 |
| 616 | Transplantation | 14 | 543 | 522 | 587 |
| 617 | magnetic resonance | 36 | 541 | 23 | 39 |
| 618 | viral genetics | 2 | 540 | 382 | 306 |
| 619 | Pest control | 37 | 539 | 5 | 7 |
| 620 | health planning | 45 | 538 | 336 | 573 |
| 621 | Heat Exchangers | 16 | 535 | 444 | 491 |
| 621 | mutation | 21 | 535 | 134 | 234 |
| 623 | older people | 25 | 534 | 452 | 360 |
| 624 | Synaptic Transmission | 16 | 532 | 137 | 145 |
| 625 | Soil fertility | 9 | 523 | 128 | 110 |
| 626 | Cognitive neuroscience | 23 | 521 | 300 | 517 |
| 626 | Product life cycle | 8 | 521 | 119 | 103 |
| 626 | green products | 8 | 521 | 111 | 101 |
| 626 | Phytotherapy | 26 | 521 | 47 | 122 |
| 630 | Arthropods | 33 | 519 | 6 | 13 |
| 631 | brain mapping | 8 | 518 | 376 | 339 |
| 632 | Ecological Engineering | 19 | 515 | 87 | 186 |
| 633 | Infections | 14 | 512 | 478 | 587 |
| 633 | Medical innovations | 13 | 512 | 390 | 759 |
| 633 | software | 17 | 512 | 286 | 347 |
| 636 | Acarology | 25 | 511 | 33 | 44 |
| 636 | Ticks | 25 | 511 | 32 | 44 |
| 636 | Acari | 25 | 511 | 32 | 44 |
| 639 | Celestial Mechanics | 23 | 508 | 31 | 37 |
| 640 | Semiconductors | 55 | 505 | 319 | 582 |
| 641 | Freshwater invertebrates | 11 | 502 | 65 | 66 |
| 642 | pheromones | 19 | 501 | 115 | 167 |
| 643 | Educational Psychology | 64 | 493 | 173 | 541 |
| 644 | Hydrogeology | 26 | 492 | 91 | 165 |
| 644 | Simulation Methods | 25 | 492 | 116 | 141 |
| 646 | Fishery management | 38 | 491 | 123 | 218 |
| 647 | toxicity testing | 17 | 490 | 144 | 182 |
| 648 | Asia | 14 | 488 | 1221 | 653 |
| 649 | atmospheric models | 17 | 487 | 244 | 342 |
| 650 | Tribology | 37 | 486 | 210 | 386 |
| 650 | drug resistance | 33 | 486 | 53 | 203 |
| 650 | Substance Abuse | 39 | 486 | 310 | 534 |
| 653 | cell membrane | 23 | 481 | 143 | 280 |
| 653 | Forest genetics | 19 | 481 | 46 | 38 |
| 655 | commerce | 14 | 478 | 568 | 556 |
| 656 | Geomagnetism | 23 | 477 | 202 | 232 |
| 657 | Clinical Immunology | 24 | 474 | 312 | 489 |
| 658 | Sustainable agriculture | 26 | 472 | 104 | 214 |
| 658 | Industry | 7 | 472 | 47 | 69 |
| 660 | ethnobiology | 25 | 471 | 8 | 54 |
| 661 | Chronobiology | 22 | 470 | 55 | 90 |
| 661 | biological clocks | 22 | 470 | 55 | 90 |
| 661 | circadian rhythm | 22 | 470 | 55 | 90 |
| 661 | biological rhythms | 22 | 470 | 54 | 90 |
| 665 | synthesis | 48 | 468 | 74 | 132 |
| 666 | Developmental Neurobiology | 34 | 463 | 28 | 122 |
| 667 | baking | 18 | 459 | 51 | 58 |
| 668 | lasers | 44 | 457 | 455 | 747 |
| 669 | drug addiction | 27 | 454 | 322 | 532 |
| 670 | Synapses | 17 | 453 | 57 | 97 |
| 671 | Freeze-Drying | 23 | 449 | 40 | 74 |
| 671 | Hypothermia | 23 | 449 | 40 | 74 |
| 671 | Freeze Drying | 23 | 449 | 40 | 74 |
| 674 | Andrology | 23 | 447 | 113 | 177 |
| 675 | Water Purification | 35 | 445 | 154 | 300 |
| 676 | Bacterial infections | 20 | 444 | 179 | 505 |
| 677 | international trade | 10 | 443 | 272 | 203 |
| 677 | Cell metabolism | 6 | 443 | 429 | 649 |
| 679 | Wetland conservation | 32 | 441 | 24 | 87 |
| 679 | animal diseases | 17 | 441 | 122 | 114 |
| 679 | Wetlands | 32 | 441 | 24 | 87 |
| 682 | Urban Policy | 30 | 440 | 106 | 249 |
| 682 | urban forestry | 29 | 440 | 10 | 42 |
| 684 | Contraception | 24 | 439 | 151 | 197 |
| 685 | rivers | 32 | 437 | 5 | 69 |
| 686 | Research Design | 25 | 434 | 287 | 502 |
| 687 | Probiotics | 16 | 432 | 14 | 16 |
| 687 | Glass | 21 | 432 | 375 | 496 |
| 689 | Plant hormones | 15 | 431 | 60 | 77 |
| 690 | Linguistics | 66 | 429 | 134 | 406 |
| 690 | Circadian rhythms | 14 | 429 | 64 | 92 |
| 692 | plant viruses | 8 | 428 | 109 | 57 |
| 693 | Health | 22 | 427 | 672 | 876 |
| 694 | X-ray spectroscopy | 47 | 425 | 4 | 17 |
| 694 | Water Microbiology | 19 | 425 | 37 | 103 |
| 696 | Biogeochemical cycles | 10 | 423 | 204 | 307 |
| 696 | pottery | 19 | 423 | 384 | 489 |
| 698 | nuclear magnetic resonance | 44 | 421 | 221 | 430 |
| 699 | catalytic activity | 7 | 420 | 382 | 253 |
| 700 | Schizophrenia | 21 | 419 | 361 | 567 |
| 701 | Safety management | 28 | 416 | 33 | 63 |
| 701 | pain | 19 | 416 | 469 | 685 |
| 701 | Fuzzy systems | 41 | 416 | 167 | 342 |
| 704 | Antibacterial agents | 18 | 415 | 145 | 275 |
| 705 | Computational Complexity | 43 | 414 | 57 | 125 |
| 706 | weather | 21 | 412 | 74 | 159 |
| 707 | Information Technology | 25 | 410 | 624 | 971 |
| 707 | Minerals | 21 | 410 | 124 | 181 |
| 709 | Metastasis | 5 | 409 | 108 | 141 |
| 709 | Fouling | 17 | 409 | 28 | 72 |
| 711 | Nonlinear functional analysis | 42 | 408 | 108 | 275 |
| 712 | Magnetic Resonance Imaging | 9 | 406 | 237 | 173 |
| 713 | Energy metabolism | 20 | 405 | 173 | 323 |
| 714 | Smoking | 17 | 403 | 265 | 352 |
| 715 | Radiology | 31 | 401 | 367 | 495 |
| 716 | Apoptosis | 15 | 400 | 40 | 58 |
| 716 | neurotoxins | 15 | 400 | 40 | 58 |
| 716 | Neurotoxic agents | 15 | 400 | 40 | 58 |
| 716 | economic policy | 38 | 400 | 502 | 715 |
| 716 | Nerve regeneration | 15 | 400 | 40 | 58 |
| 721 | shellfish | 25 | 398 | 12 | 15 |
| 722 | Thrombosis | 23 | 394 | 344 | 545 |
| 723 | Adolescent | 17 | 393 | 786 | 848 |
| 724 | Protozoa | 20 | 392 | 65 | 159 |
| 724 | amino acids | 16 | 392 | 95 | 171 |
| 726 | forestry | 21 | 391 | 44 | 66 |
| 727 | particles | 51 | 390 | 60 | 259 |
| 728 | Child | 23 | 389 | 792 | 1024 |
| 729 | Porous materials | 24 | 387 | 102 | 142 |
| 730 | Wireless Communication Systems | 20 | 384 | 968 | 1009 |
| 730 | peptides | 37 | 384 | 53 | 170 |
| 732 | Systems Engineering | 32 | 383 | 509 | 842 |
| 732 | Computational Chemistry | 30 | 383 | 59 | 287 |
| 734 | Fluid Dynamics | 16 | 381 | 411 | 451 |
| 734 | Smart Materials | 23 | 381 | 203 | 337 |
| 736 | Homeostasis | 2 | 379 | 575 | 667 |
| 737 | Carcinogenesis | 25 | 378 | 232 | 549 |
| 737 | Multivariate Analysis | 27 | 378 | 74 | 160 |
| 737 | land tenure | 9 | 378 | 12 | 12 |
| 737 | Land reform | 9 | 378 | 12 | 12 |
| 741 | carcinogens | 18 | 375 | 290 | 545 |
| 741 | Diabetes | 15 | 375 | 1000 | 1370 |
| 743 | Chemical processes | 15 | 374 | 187 | 168 |
| 744 | Forensic Genetics | 9 | 373 | 96 | 91 |
| 744 | Greenhouse gases | 7 | 373 | 171 | 161 |
| 744 | Gerontology | 21 | 373 | 659 | 741 |
| 747 | Infrared spectroscopy | 23 | 372 | 14 | 45 |
| 748 | Food Policy | 3 | 371 | 341 | 168 |
| 748 | Human Geography | 27 | 371 | 257 | 400 |
| 750 | Crystal growth | 20 | 370 | 284 | 410 |
| 750 | computer networks | 36 | 370 | 618 | 1163 |
| 752 | exobiology | 9 | 367 | 104 | 158 |
| 753 | agricultural policy | 2 | 366 | 312 | 131 |
| 754 | Diabetes mellitus | 13 | 364 | 1011 | 1329 |
| 755 | Reproductive toxicology | 19 | 363 | 64 | 179 |
| 755 | Knowledge | 28 | 363 | 83 | 117 |
| 755 | flavor | 10 | 363 | 42 | 28 |
| 755 | Information Science | 35 | 363 | 525 | 1208 |
| 759 | biomedicine | 17 | 362 | 121 | 210 |
| 760 | Hemostasis | 21 | 361 | 214 | 301 |
| 761 | machinery | 15 | 356 | 216 | 207 |
| 761 | Cytokine | 11 | 356 | 123 | 242 |
| 763 | Computer Science | 45 | 354 | 253 | 596 |
| 764 | Growth factors | 10 | 353 | 67 | 195 |
| 765 | Trace elements | 13 | 352 | 47 | 101 |
| 766 | Medical Technology | 18 | 351 | 522 | 751 |
| 766 | Microbial Metabolism | 15 | 351 | 12 | 50 |
| 768 | human development | 15 | 349 | 281 | 397 |
| 769 | Adhesion | 18 | 347 | 113 | 152 |
| 769 | adhesives | 18 | 347 | 123 | 153 |
| 771 | Genes | 14 | 345 | 418 | 466 |
| 772 | Consciousness | 12 | 343 | 149 | 163 |
| 773 | Food texture | 15 | 341 | 33 | 39 |
| 773 | city planning | 45 | 341 | 242 | 632 |
| 775 | civilization | 97 | 340 | 44 | 54 |
| 775 | X-ray crystallography | 22 | 340 | 158 | 168 |
| 777 | mutagens | 11 | 337 | 377 | 555 |
| 778 | hazard mitigation | 19 | 336 | 182 | 346 |
| 779 | Quantum Optics | 30 | 335 | 150 | 289 |
| 779 | Laser Spectroscopy | 30 | 335 | 136 | 270 |
| 781 | Health Policy | 23 | 334 | 689 | 1058 |
| 782 | Chemotherapy | 9 | 333 | 815 | 735 |
| 782 | emergency management | 14 | 333 | 157 | 231 |
| 784 | Cardiovascular system | 25 | 332 | 526 | 1321 |
| 785 | Birth control | 20 | 330 | 103 | 193 |
| 786 | Energy Storage | 17 | 329 | 470 | 673 |
| 786 | Mycotoxins | 26 | 329 | 12 | 36 |
| 788 | biological agents | 48 | 328 | 15 | 11 |
| 789 | Women's health | 15 | 327 | 446 | 485 |
| 789 | environmental issues | 17 | 327 | 70 | 159 |
| 791 | drug development | 6 | 326 | 715 | 950 |
| 792 | Geriatrics | 19 | 325 | 1184 | 1463 |
| 792 | Quantum electronics | 26 | 325 | 500 | 687 |
| 792 | symbiosis | 38 | 325 | 1 | 9 |
| 795 | reforestation | 40 | 321 | 8 | 32 |
| 795 | Environmental Geochemistry | 15 | 321 | 80 | 113 |
| 795 | afforestation | 40 | 321 | 8 | 32 |
| 798 | Bacterial diseases | 8 | 319 | 82 | 88 |
| 799 | Database Management | 11 | 318 | 369 | 377 |
| 800 | Dermatology | 14 | 317 | 846 | 941 |
| 800 | Geometry | 82 | 317 | 71 | 221 |
| 802 | Periglacial processes | 14 | 312 | 23 | 59 |
| 802 | Permafrost | 14 | 312 | 23 | 59 |
| 802 | Frozen ground | 14 | 312 | 24 | 59 |
| 805 | Environmentalism | 1 | 310 | 287 | 59 |
| 806 | Sulfur | 5 | 308 | 49 | 6 |
| 807 | Ethnobotany | 14 | 307 | 20 | 78 |
| 807 | Marine invertebrates | 21 | 307 | 18 | 24 |
| 807 | Traditional medicine | 14 | 307 | 22 | 79 |
| 807 | Ethnomedicine | 14 | 307 | 20 | 78 |
| 811 | Software Engineering | 22 | 306 | 292 | 483 |
| 812 | Enteral nutrition | 3 | 304 | 861 | 513 |
| 812 | Parenteral nutrition | 3 | 304 | 1030 | 633 |
| 814 | Radiobiology | 15 | 297 | 654 | 860 |
| 814 | fuel cells | 12 | 297 | 660 | 904 |
| 816 | Animal Nutrition | 22 | 295 | 145 | 240 |
| 816 | Natural resources | 9 | 295 | 380 | 400 |
| 816 | Hydrodynamics | 9 | 295 | 309 | 308 |
| 819 | Regional Planning | 30 | 294 | 357 | 710 |
| 819 | management | 16 | 294 | 1473 | 1880 |
| 821 | vibration | 22 | 293 | 323 | 548 |
| 821 | Social problems | 12 | 293 | 208 | 304 |
| 823 | women's rights | 9 | 290 | 47 | 36 |
| 824 | Information Theory | 40 | 289 | 274 | 695 |
| 824 | Structural dynamics | 16 | 289 | 385 | 627 |
| 824 | Telecommunication | 28 | 289 | 879 | 1412 |
| 824 | impact | 7 | 289 | 202 | 196 |
| 828 | Game Theory | 21 | 288 | 126 | 201 |
| 829 | Nuclear Engineering | 41 | 287 | 420 | 629 |
| 829 | Nanochemistry | 23 | 287 | 235 | 445 |
| 829 | Horticulture | 33 | 287 | 108 | 263 |
| 832 | North America | 20 | 285 | 220 | 277 |
| 833 | preimplantation genetic diagnosis | 15 | 284 | 130 | 180 |
| 833 | embryo transfer | 15 | 284 | 141 | 186 |
| 833 | Climate | 16 | 284 | 122 | 297 |
| 836 | Restoration Ecology | 29 | 282 | 36 | 192 |
| 836 | Recycling | 3 | 282 | 625 | 518 |
| 838 | wetland management | 15 | 281 | 8 | 42 |
| 839 | Cross-Cultural Studies | 5 | 280 | 514 | 253 |
| 839 | Electron Microscopy | 15 | 280 | 102 | 121 |
| 841 | Geotechnical Engineering | 7 | 279 | 284 | 225 |
| 841 | Transport | 17 | 279 | 172 | 330 |
| 841 | herbicides | 26 | 279 | 31 | 84 |
| 844 | pharmaceutical industry | 13 | 278 | 170 | 164 |
| 845 | micromechanics | 14 | 276 | 209 | 280 |
| 846 | Production Engineering | 17 | 275 | 767 | 861 |
| 846 | Child Development | 24 | 275 | 597 | 1150 |
| 846 | Bacteriophages | 5 | 275 | 10 | 16 |
| 846 | Sleep | 20 | 275 | 557 | 849 |
| 850 | Harmonic Analysis | 11 | 272 | 45 | 66 |
| 851 | Fishery resources | 17 | 269 | 154 | 296 |
| 852 | Social Psychology | 13 | 267 | 963 | 1222 |
| 853 | Obstetrics | 12 | 264 | 1298 | 1370 |
| 854 | Quality of life | 17 | 263 | 476 | 922 |
| 855 | cosmic rays | 22 | 261 | 104 | 173 |
| 855 | Mitochondria | 8 | 261 | 81 | 139 |
| 855 | energy development | 11 | 261 | 307 | 569 |
| 858 | Antigens | 21 | 260 | 254 | 497 |
| 859 | solar cells | 12 | 259 | 376 | 647 |
| 860 | Child psychology | 23 | 258 | 464 | 984 |
| 861 | Quantum Chemistry | 21 | 254 | 5 | 40 |
| 861 | Neural circuitry | 20 | 254 | 665 | 1185 |
| 861 | cross-cultural comparison | 3 | 254 | 600 | 177 |
| 864 | Animal | 15 | 251 | 11 | 17 |
| 864 | pigments | 18 | 251 | 232 | 395 |
| 866 | Urban Planning | 15 | 250 | 86 | 198 |
| 866 | Energy Consumption | 8 | 250 | 185 | 282 |
| 866 | Foodborne diseases | 14 | 250 | 59 | 95 |
| 866 | Structure-activity relationship | 10 | 250 | 58 | 165 |
| 870 | Mobile Computing | 9 | 249 | 614 | 559 |
| 870 | Communication | 29 | 249 | 509 | 1115 |
| 870 | wildlife diseases | 29 | 249 | 5 | 22 |
| 873 | Human evolution | 15 | 248 | 140 | 291 |
| 873 | Bones | 11 | 248 | 375 | 615 |
| 875 | Electromagnetism | 15 | 247 | 387 | 489 |
| 875 | Combinatorial analysis | 20 | 247 | 299 | 275 |
| 877 | environmental remediation | 19 | 246 | 18 | 102 |
| 877 | Autoantibodies | 15 | 246 | 165 | 399 |
| 877 | Autoimmune diseases | 15 | 246 | 192 | 443 |
| 880 | Sea | 16 | 245 | 153 | 299 |
| 881 | Pediatrics | 11 | 244 | 1311 | 1747 |
| 881 | Bacteria | 12 | 244 | 92 | 297 |
| 883 | Groundwater | 9 | 242 | 281 | 305 |
| 884 | Differential Equations | 16 | 241 | 343 | 374 |
| 884 | Teaching | 54 | 241 | 215 | 767 |
| 886 | Microstructure | 16 | 239 | 194 | 202 |
| 887 | Finite Element Method | 15 | 238 | 48 | 98 |
| 888 | Biomechanics | 10 | 236 | 664 | 824 |
| 889 | Gene library | 8 | 235 | 41 | 49 |
| 890 | Rock Mechanics | 16 | 234 | 346 | 553 |
| 890 | Remote Sensing | 39 | 234 | 212 | 608 |
| 890 | Biological Systems | 26 | 234 | 45 | 280 |
| 890 | Detectors | 16 | 234 | 570 | 762 |
| 894 | Developmental Psychology | 8 | 233 | 569 | 647 |
| 894 | Combustion | 15 | 233 | 542 | 766 |
| 896 | Radiography | 6 | 230 | 582 | 703 |
| 897 | Metallic Glasses | 16 | 229 | 146 | 263 |
| 897 | Liquid chromatography | 19 | 229 | 87 | 93 |
| 899 | DNA repair | 10 | 228 | 106 | 185 |
| 900 | Cytoskeleton | 8 | 227 | 124 | 150 |
| 900 | Environmental risk assessment | 10 | 227 | 127 | 160 |
| 902 | aquatic insects | 22 | 226 | 4 | 1 |
| 902 | carbon monoxide | 7 | 226 | 144 | 222 |
| 904 | Psycholinguistics | 15 | 225 | 348 | 598 |
| 904 | Educational Technology | 16 | 225 | 515 | 806 |
| 906 | Particle Physics | 3 | 224 | 205 | 182 |
| 906 | eugenics | 12 | 224 | 195 | 276 |
| 908 | Parkinson's disease | 4 | 222 | 228 | 137 |
| 909 | Logic Programming | 29 | 221 | 22 | 74 |
| 910 | solar power | 10 | 220 | 388 | 650 |
| 910 | coastal areas | 14 | 220 | 9 | 17 |
| 910 | coastal archaeology | 14 | 220 | 9 | 17 |
| 910 | islands | 14 | 220 | 9 | 17 |
| 910 | mathematical concepts | 18 | 220 | 76 | 108 |
| 915 | Animal health | 23 | 217 | 84 | 104 |
| 916 | Business | 14 | 216 | 916 | 1472 |
| 917 | Globalization | 15 | 215 | 130 | 261 |
| 918 | air quality management | 14 | 214 | 120 | 304 |
| 918 | Input-output analysis | 7 | 214 | 99 | 130 |
| 918 | Alzheimer's disease | 82 | 214 | 199 | 789 |
| 921 | Pediatric Neurology | 2 | 212 | 1210 | 1077 |
| 921 | Demography | 6 | 212 | 438 | 425 |
| 921 | Environmental Archaeology | 15 | 212 | 7 | 13 |
| 921 | Dementia | 81 | 212 | 179 | 707 |
| 925 | Political Science | 38 | 211 | 388 | 745 |
| 925 | Audiology | 7 | 211 | 499 | 473 |
| 925 | electrocatalysis | 15 | 211 | 6 | 18 |
| 928 | Genetic translocation | 9 | 209 | 57 | 106 |
| 928 | plasmids | 9 | 209 | 57 | 106 |
| 930 | Thermodynamics | 12 | 208 | 527 | 437 |
| 930 | Sleep Disorders | 15 | 208 | 671 | 975 |
| 932 | Clinical Psychology | 13 | 206 | 542 | 883 |
| 933 | traffic safety | 5 | 205 | 207 | 100 |
| 934 | Marine Meteorology | 6 | 203 | 259 | 264 |
| 935 | Granular materials | 33 | 201 | 42 | 311 |
| 936 | Petroleum Engineering | 16 | 200 | 300 | 462 |
| 937 | DNA polymerases | 2 | 199 | 589 | 659 |
| 938 | Materials Engineering | 17 | 198 | 150 | 234 |
| 939 | Human-Computer Interaction | 12 | 197 | 677 | 979 |
| 939 | Fiber Optics | 11 | 197 | 528 | 609 |
| 939 | immunoassay | 13 | 197 | 24 | 32 |
| 942 | elasticity | 24 | 196 | 23 | 97 |
| 943 | Africa | 20 | 195 | 424 | 567 |
| 944 | Urology | 6 | 194 | 1328 | 1327 |
| 945 | Watershed management | 26 | 193 | 3 | 40 |
| 946 | Biotelemetry | 6 | 192 | 26 | 29 |
| 946 | Bioethics | 12 | 192 | 388 | 384 |
| 946 | Androgens | 9 | 192 | 95 | 176 |
| 946 | Paleobotany | 21 | 192 | 13 | 77 |
| 950 | finance | 6 | 191 | 1692 | 1285 |
| 951 | Soil Mechanics | 15 | 190 | 464 | 743 |
| 951 | Pediatric Endocrinology | 6 | 190 | 190 | 76 |
| 953 | Luminescence | 19 | 189 | 385 | 693 |
| 954 | Functional foods | 8 | 188 | 137 | 199 |
| 955 | motivation | 9 | 187 | 143 | 223 |
| 956 | Lattice Theory | 25 | 185 | 19 | 30 |
| 956 | Genetic variation | 17 | 185 | 7 | 33 |
| 956 | DNA methylation | 4 | 185 | 228 | 246 |
| 959 | Thermochemistry | 7 | 183 | 299 | 282 |
| 960 | Retina | 1 | 181 | 325 | 316 |
| 960 | Structural design | 15 | 181 | 250 | 487 |
| 960 | eye | 1 | 181 | 391 | 322 |
| 960 | international cooperation | 2 | 181 | 766 | 380 |
| 964 | weather forecasting | 10 | 180 | 68 | 135 |
| 965 | Adolescent Psychology | 6 | 179 | 543 | 556 |
| 965 | Beetles | 30 | 179 | 9 | 6 |
| 965 | Solutions | 11 | 179 | 117 | 137 |
| 968 | Humanities | 32 | 178 | 225 | 576 |
| 968 | Reservoirs | 4 | 178 | 133 | 48 |
| 968 | fossil | 12 | 178 | 3 | 10 |
| 968 | Middle East | 27 | 178 | 146 | 326 |
| 972 | Graph Theory | 17 | 176 | 226 | 256 |
| 972 | Medical Ethics | 9 | 176 | 591 | 520 |
| 972 | Organometallic compounds | 13 | 176 | 551 | 792 |
| 975 | Ferroelectricity | 23 | 175 | 290 | 487 |
| 976 | Biotransformation | 17 | 173 | 7 | 21 |
| 977 | Immunogenetics | 9 | 172 | 359 | 494 |
| 977 | income | 6 | 172 | 72 | 92 |
| 977 | Wealth | 6 | 172 | 72 | 92 |
| 980 | lakes | 3 | 171 | 59 | 17 |
| 980 | ecotourism | 4 | 171 | 175 | 137 |
| 982 | Ethics | 23 | 170 | 205 | 424 |
| 983 | Computational Mathematics | 9 | 169 | 28 | 59 |
| 983 | Helminthology | 14 | 169 | 15 | 10 |
| 983 | Helminths | 14 | 169 | 15 | 10 |
| 983 | hygiene | 7 | 169 | 271 | 322 |
| 987 | Seismology | 2 | 168 | 636 | 324 |
| 987 | Neuroendocrinology | 2 | 168 | 165 | 198 |
| 987 | Neuroplasticity | 5 | 168 | 135 | 158 |
| 987 | neuronal plasticity | 5 | 168 | 34 | 98 |
| 987 | Estuaries | 4 | 168 | 111 | 138 |
| 992 | environmental control | 5 | 167 | 148 | 167 |
| 992 | Vegetation dynamics | 19 | 167 | 17 | 85 |
| 992 | Plasma devices | 9 | 167 | 154 | 217 |
| 995 | Plate Tectonics | 9 | 166 | 110 | 159 |
| 995 | Pancreatic diseases | 4 | 166 | 322 | 227 |
| 997 | Happiness | 5 | 165 | 263 | 276 |
| 998 | feeding behavior | 9 | 163 | 355 | 600 |
| 998 | Liposomes | 15 | 163 | 141 | 399 |
| 998 | Appetite | 9 | 163 | 300 | 536 |