10.2K(top 0.1%)
papers
349.9K(top 0.1%)
citations
226(top 0.1%)
h-index
365(top 0.1%)
g-index
13.2K
all documents
403.8K
doc citations
14.3K
citing journals
Top Disciplines (by citations)
| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|---|---|---|---|---|
| 1 | Biology | 444 | 34,522 | 799 | 765 |
| 2 | Geophysics | 792 | 34,125 | 119 | 112 |
| 3 | Science | 257 | 32,278 | 1.3K | 829 |
| 4 | Ecology | 526 | 31,524 | 267 | 260 |
| 5 | Physics | 134 | 26,173 | 2.0K | 1.0K |
| 6 | Planets | 474 | 25,350 | 63 | 58 |
| 7 | Natural history | 127 | 22,461 | 519 | 635 |
| 8 | Environment | 182 | 16,244 | 388 | 311 |
| 9 | Biodiversity conservation | 127 | 15,191 | 108 | 69 |
| 10 | Pollution | 191 | 14,798 | 476 | 321 |
| 11 | Climate change | 101 | 12,284 | 64 | 65 |
| 12 | Eutrophication | 100 | 12,276 | 65 | 64 |
| 13 | Biodiversity | 108 | 8,595 | 193 | 70 |
| 14 | Medicine | 227 | 7,327 | 1.5K | 1.8K |
| 15 | Meteorology | 139 | 7,135 | 236 | 223 |
| 16 | Biogeochemistry | 79 | 6,667 | 77 | 51 |
| 17 | Botany | 181 | 6,591 | 441 | 515 |
| 18 | Oceanography | 185 | 6,573 | 96 | 118 |
| 19 | Earth Sciences | 114 | 6,371 | 270 | 158 |
| 20 | Environmental Health | 127 | 6,083 | 658 | 591 |
| 21 | Zoology | 191 | 5,787 | 106 | 86 |
| 22 | Climatology | 98 | 5,685 | 225 | 198 |
| 23 | Marine Biology | 164 | 5,538 | 178 | 159 |
| 24 | Geology | 177 | 5,483 | 277 | 253 |
| 25 | polar regions | 220 | 5,409 | 7 | 6 |
| 26 | biological evolution | 52 | 5,235 | 407 | 280 |
| 27 | Chemistry | 86 | 4,973 | 2.7K | 2.1K |
| 28 | Frozen ground | 65 | 4,923 | 3 | 1 |
| 29 | Periglacial processes | 64 | 4,922 | 3 | 1 |
| 29 | Permafrost | 64 | 4,922 | 3 | 1 |
| 31 | Research | 165 | 4,898 | 1.5K | 1.5K |
| 32 | Atmospheric Physics | 98 | 4,423 | 232 | 239 |
| 33 | Hydrology | 117 | 4,288 | 198 | 194 |
| 34 | Astrophysics | 232 | 3,800 | 467 | 749 |
| 35 | Molecular Biology | 76 | 3,776 | 2.4K | 2.1K |
| 36 | Molecular Genetics | 63 | 3,714 | 270 | 238 |
| 37 | Atmospheric Chemistry | 44 | 3,658 | 267 | 210 |
| 38 | ecosystem | 49 | 3,567 | 163 | 125 |
| 39 | Evolution | 41 | 3,488 | 483 | 343 |
| 40 | Biogeochemical cycles | 45 | 3,441 | 57 | 67 |
| 41 | cryosphere | 87 | 3,230 | 11 | 21 |
| 42 | Population Genetics | 69 | 3,065 | 144 | 178 |
| 43 | Geobiology | 61 | 2,815 | 17 | 7 |
| 44 | Ecosystem management | 34 | 2,768 | 73 | 38 |
| 45 | Microbiology | 41 | 2,754 | 2.6K | 2.0K |
| 46 | Molecular ecology | 46 | 2,672 | 208 | 230 |
| 47 | Plant Ecology | 35 | 2,588 | 379 | 244 |
| 48 | Microbial Ecology | 43 | 2,557 | 591 | 586 |
| 49 | Glaciology | 91 | 2,453 | 24 | 22 |
| 50 | glaciers | 87 | 2,404 | 23 | 22 |
| 51 | mammals | 53 | 2,376 | 101 | 49 |
| 52 | Volcanoes | 61 | 2,305 | 22 | 20 |
| 53 | Birds | 116 | 2,209 | 82 | 100 |
| 54 | environmental protection | 55 | 2,180 | 498 | 533 |
| 55 | Physiology | 68 | 2,136 | 1.0K | 1.1K |
| 56 | Biogeography | 37 | 2,004 | 189 | 215 |
| 57 | Geochemistry | 80 | 1,928 | 195 | 209 |
| 58 | Fisheries | 77 | 1,916 | 107 | 133 |
| 59 | Algal blooms | 6 | 1,911 | 103 | 11 |
| 59 | Cyanobacteria | 6 | 1,911 | 103 | 11 |
| 59 | microalgae | 6 | 1,911 | 103 | 11 |
| 62 | forestry | 24 | 1,863 | 47 | 14 |
| 63 | United States | 116 | 1,826 | 758 | 1.0K |
| 64 | Marine Meteorology | 20 | 1,757 | 91 | 39 |
| 65 | Water | 46 | 1,755 | 380 | 486 |
| 66 | Marine mammals | 62 | 1,754 | 18 | 19 |
| 67 | Geomagnetism | 67 | 1,700 | 90 | 79 |
| 68 | Molecular evolution | 26 | 1,594 | 416 | 336 |
| 69 | Geography | 46 | 1,574 | 474 | 372 |
| 70 | plant communities | 17 | 1,507 | 485 | 319 |
| 71 | Technology | 42 | 1,503 | 1.0K | 718 |
| 72 | Ornithology | 69 | 1,485 | 100 | 103 |
| 73 | water supply | 32 | 1,445 | 257 | 240 |
| 74 | Animal ecology | 37 | 1,435 | 286 | 271 |
| 75 | Environmental Policy | 24 | 1,309 | 917 | 808 |
| 76 | environmental pollution | 65 | 1,285 | 762 | 1.2K |
| 77 | Conservation Biology | 39 | 1,245 | 158 | 266 |
| 78 | Phylogeny | 19 | 1,224 | 232 | 126 |
| 79 | Environmental Engineering | 36 | 1,214 | 1.0K | 1.2K |
| 79 | Plants | 35 | 1,214 | 627 | 736 |
| 81 | Aquatic ecology | 50 | 1,163 | 81 | 94 |
| 82 | China | 35 | 1,137 | 684 | 340 |
| 83 | Wildlife management | 38 | 1,092 | 59 | 42 |
| 84 | Neurology | 31 | 1,089 | 2.5K | 2.6K |
| 85 | sanitation | 22 | 1,084 | 678 | 822 |
| 86 | Auditing | 2 | 1,072 | 446 | 35 |
| 87 | Water pollution | 28 | 1,046 | 762 | 747 |
| 88 | Genetics | 40 | 1,015 | 1.3K | 2.1K |
| 89 | Biochemistry | 41 | 968 | 3.6K | 3.9K |
| 90 | Education | 22 | 939 | 1.6K | 689 |
| 91 | Data Mining | 13 | 924 | 649 | 364 |
| 91 | data collection | 13 | 924 | 365 | 255 |
| 93 | global environmental change | 18 | 880 | 202 | 193 |
| 94 | Energy Policy | 19 | 867 | 466 | 422 |
| 95 | Environmental Management | 17 | 862 | 998 | 873 |
| 96 | Marine biodiversity | 12 | 856 | 102 | 5 |
| 97 | Seismology | 46 | 823 | 89 | 134 |
| 98 | California | 46 | 811 | 53 | 82 |
| 99 | Astronomy | 31 | 792 | 1.2K | 1.2K |
| 100 | Community Psychology | 19 | 786 | 169 | 188 |
| 101 | Nanotechnology | 13 | 784 | 3.3K | 2.4K |
| 102 | energy resources | 9 | 776 | 297 | 232 |
| 103 | Virology | 10 | 761 | 2.4K | 2.2K |
| 104 | Environmental Chemistry | 41 | 756 | 428 | 962 |
| 105 | Landscape Ecology | 15 | 748 | 133 | 134 |
| 106 | Community Psychiatry | 16 | 713 | 452 | 350 |
| 107 | Paleoclimatology | 20 | 711 | 160 | 140 |
| 108 | Mathematics | 40 | 708 | 2.2K | 1.4K |
| 109 | Educational Anthropology | 8 | 701 | 39 | 7 |
| 110 | Pharmacology | 11 | 688 | 3.7K | 2.5K |
| 111 | atmospheric models | 23 | 684 | 228 | 293 |
| 112 | Genomics | 16 | 674 | 1.8K | 1.5K |
| 113 | Endocrinology | 26 | 664 | 1.4K | 1.9K |
| 114 | Biotechnology | 6 | 662 | 5.9K | 3.4K |
| 115 | Toxicology | 36 | 650 | 1.6K | 2.2K |
| 116 | Soil Science | 21 | 641 | 513 | 498 |
| 117 | Anthropology | 26 | 625 | 531 | 358 |
| 118 | Public Health | 19 | 601 | 3.1K | 2.8K |
| 119 | Sustainable Development | 13 | 598 | 757 | 593 |
| 120 | Ecological Genetics | 24 | 592 | 109 | 80 |
| 121 | Electrical Engineering | 16 | 584 | 1.9K | 867 |
| 122 | Marine Pollution | 20 | 581 | 227 | 361 |
| 123 | Animal Behavior | 21 | 571 | 645 | 883 |
| 123 | Hydrometeorology | 11 | 571 | 90 | 109 |
| 125 | Earthquakes | 37 | 565 | 64 | 89 |
| 126 | Statistics | 9 | 545 | 1.9K | 947 |
| 127 | Nutrition | 33 | 500 | 1.7K | 2.6K |
| 127 | Paleontology | 26 | 500 | 519 | 522 |
| 129 | Neurophysiology | 13 | 499 | 1.7K | 1.8K |
| 130 | Plant diseases | 29 | 484 | 660 | 821 |
| 131 | bioclimatology | 11 | 482 | 367 | 239 |
| 132 | Comparative Physiology | 20 | 474 | 226 | 298 |
| 133 | Radiation | 9 | 472 | 1.2K | 565 |
| 134 | Environmental monitoring | 20 | 466 | 1.5K | 2.0K |
| 135 | Environmental pollutants | 31 | 463 | 511 | 1.1K |
| 136 | Petrology | 7 | 454 | 600 | 435 |
| 136 | pollutants | 30 | 454 | 383 | 872 |
| 138 | Neurochemistry | 14 | 448 | 1.4K | 1.4K |
| 138 | Immunity | 2 | 448 | 3.0K | 1.9K |
| 140 | Geochemical Modeling | 10 | 442 | 152 | 156 |
| 140 | Materials | 14 | 442 | 3.4K | 3.2K |
| 140 | geological modeling | 10 | 442 | 209 | 171 |
| 143 | Environmental Microbiology | 13 | 441 | 659 | 872 |
| 144 | genome | 9 | 438 | 1.2K | 1.4K |
| 145 | Engineering | 11 | 435 | 2.6K | 1.4K |
| 146 | Marine Ecology | 26 | 432 | 135 | 180 |
| 147 | Neurobiology | 18 | 429 | 857 | 1.2K |
| 148 | counseling | 8 | 413 | 872 | 484 |
| 149 | Seaweed | 17 | 412 | 224 | 321 |
| 150 | human behavior | 15 | 402 | 1.0K | 1.4K |
| 151 | Respiration | 15 | 388 | 775 | 933 |
| 152 | Marine algae | 11 | 386 | 44 | 19 |
| 153 | energy conservation | 4 | 378 | 1.6K | 807 |
| 153 | viruses | 2 | 378 | 2.3K | 1.2K |
| 153 | Agriculture | 19 | 378 | 837 | 990 |
| 156 | Nanostructured Materials | 5 | 369 | 3.1K | 2.0K |
| 156 | freshwater biology | 19 | 369 | 272 | 415 |
| 158 | Meteorites | 8 | 368 | 385 | 302 |
| 159 | Psychophysiology | 13 | 359 | 1.6K | 1.9K |
| 160 | Behavior | 14 | 358 | 1.7K | 2.0K |
| 161 | soil microbiology | 12 | 356 | 652 | 961 |
| 162 | Planetary Science | 7 | 342 | 378 | 210 |
| 162 | Host-parasite interactions | 1 | 342 | 2.4K | 1.3K |
| 162 | Virulence | 1 | 342 | 2.4K | 1.2K |
| 165 | mass transfer | 5 | 337 | 795 | 357 |
| 166 | Functional Genomics | 4 | 336 | 275 | 189 |
| 167 | Paleoecology | 14 | 334 | 214 | 190 |
| 168 | Materials Science | 23 | 333 | 2.3K | 3.0K |
| 169 | miniaturization | 2 | 330 | 2.8K | 1.5K |
| 170 | natural gas | 9 | 327 | 164 | 102 |
| 171 | nanoscience | 5 | 326 | 2.9K | 2.2K |
| 172 | Mineralogy | 13 | 325 | 749 | 756 |
| 173 | Mycology | 6 | 323 | 1.3K | 836 |
| 174 | Chemical Engineering | 8 | 322 | 3.0K | 2.5K |
| 175 | Computational Biology | 9 | 320 | 2.3K | 2.0K |
| 176 | Geriatrics | 10 | 313 | 2.3K | 1.9K |
| 177 | Psychiatry | 11 | 312 | 3.3K | 3.3K |
| 178 | Brain | 11 | 311 | 1.6K | 1.7K |
| 179 | Nanoparticles | 2 | 310 | 2.7K | 1.2K |
| 179 | Entomology | 13 | 310 | 1.4K | 1.1K |
| 181 | Geomorphology | 13 | 302 | 368 | 491 |
| 182 | Nanostructures | 1 | 299 | 3.9K | 1.4K |
| 182 | Diet | 13 | 299 | 1.3K | 2.0K |
| 184 | Biometrics | 10 | 288 | 742 | 649 |
| 185 | Chemical Ecology | 9 | 286 | 324 | 372 |
| 185 | pheromones | 9 | 286 | 287 | 349 |
| 187 | food technology | 14 | 282 | 1.1K | 1.3K |
| 188 | natural disasters | 12 | 281 | 534 | 666 |
| 189 | Soil Mechanics | 9 | 273 | 501 | 443 |
| 190 | Economics | 29 | 271 | 1.6K | 2.0K |
| 191 | Ethology | 11 | 269 | 681 | 1.1K |
| 192 | Mass Spectrometry | 11 | 268 | 783 | 829 |
| 193 | Human evolution | 5 | 265 | 310 | 249 |
| 194 | Remote Sensing | 14 | 264 | 315 | 343 |
| 195 | sexual behavior | 8 | 258 | 329 | 308 |
| 196 | Aging | 9 | 257 | 2.2K | 1.9K |
| 197 | Bioremediation | 4 | 248 | 492 | 248 |
| 198 | older people | 10 | 245 | 1.1K | 731 |
| 199 | Antarctica | 22 | 242 | 53 | 55 |
| 199 | biological invasions | 8 | 242 | 352 | 390 |
| 201 | Archaeology | 9 | 241 | 800 | 532 |
| 202 | Wildlife conservation | 9 | 240 | 446 | 494 |
| 203 | Chromosome mapping | 6 | 238 | 1.6K | 1.6K |
| 203 | gene mapping | 6 | 238 | 1.8K | 1.9K |
| 205 | Cytology | 10 | 235 | 3.3K | 4.1K |
| 205 | Biomass Energy | 2 | 235 | 2.9K | 1.7K |
| 207 | Social Psychology | 11 | 231 | 1.2K | 1.4K |
| 207 | Advertising | 2 | 231 | 482 | 245 |
| 209 | Agricultural Chemistry | 6 | 230 | 2.2K | 1.9K |
| 209 | space environment | 11 | 230 | 122 | 124 |
| 211 | Obesity | 7 | 225 | 1.8K | 1.9K |
| 211 | Scandinavia | 11 | 225 | 290 | 345 |
| 213 | Breeding | 12 | 223 | 669 | 923 |
| 214 | Gerontology | 6 | 221 | 1.9K | 1.2K |
| 215 | Ecohydrology | 9 | 219 | 113 | 137 |
| 216 | Paleoceanography | 3 | 217 | 238 | 242 |
| 217 | Landslides | 7 | 216 | 113 | 178 |
| 218 | eugenics | 12 | 214 | 296 | 396 |
| 219 | Industrial Engineering | 3 | 212 | 2.4K | 1.3K |
| 220 | hazard mitigation | 8 | 211 | 469 | 515 |
| 221 | Counseling Psychology | 3 | 210 | 246 | 145 |
| 221 | Cross-Cultural Studies | 4 | 210 | 401 | 146 |
| 223 | sustainability | 6 | 209 | 538 | 651 |
| 224 | Clinical Psychology | 6 | 207 | 1.4K | 1.5K |
| 225 | Plant breeding | 11 | 205 | 478 | 602 |
| 226 | Sedimentology | 9 | 204 | 370 | 498 |
| 227 | Hydrogeology | 3 | 202 | 831 | 333 |
| 228 | Marine invertebrates | 15 | 199 | 38 | 54 |
| 229 | Vocational Education | 2 | 192 | 767 | 254 |
| 229 | Vocational guidance | 2 | 192 | 1.1K | 474 |
| 229 | psychotherapy | 7 | 192 | 1.0K | 950 |
| 229 | Spectrum analysis | 11 | 192 | 2.6K | 2.9K |
| 233 | Bioinformatics | 9 | 191 | 1.7K | 2.0K |
| 233 | Aquaculture | 16 | 191 | 415 | 590 |
| 235 | free radicals | 4 | 189 | 1.2K | 1.3K |
| 236 | Human biology | 7 | 187 | 442 | 358 |
| 237 | exobiology | 2 | 184 | 568 | 328 |
| 237 | cross-cultural comparison | 5 | 184 | 324 | 201 |
| 239 | Agronomy | 9 | 183 | 321 | 465 |
| 240 | Geotechnical Engineering | 5 | 179 | 358 | 274 |
| 240 | Engineering Mathematics | 5 | 179 | 2.4K | 1.2K |
| 240 | alcoholism | 4 | 179 | 1.6K | 1.3K |
| 243 | Petroleum Engineering | 20 | 178 | 208 | 346 |
| 244 | Surface Chemistry | 6 | 177 | 2.7K | 2.7K |
| 244 | Colloids | 6 | 177 | 2.8K | 2.9K |
| 246 | Agricultural Ecology | 7 | 174 | 884 | 1.2K |
| 247 | Mathematical Physics | 19 | 173 | 1.3K | 1.5K |
| 248 | Transport | 8 | 172 | 173 | 307 |
| 248 | Sea | 8 | 172 | 109 | 190 |
| 248 | Fishery resources | 8 | 172 | 151 | 217 |
| 251 | Economic Development | 5 | 168 | 1.3K | 1.2K |
| 251 | biological monitoring | 3 | 168 | 628 | 384 |
| 253 | Paleogeography | 5 | 166 | 272 | 189 |
| 254 | Psychology | 11 | 164 | 3.6K | 4.3K |
| 254 | Physical Chemistry | 5 | 164 | 2.4K | 2.1K |
| 254 | Fishery management | 10 | 164 | 343 | 373 |
| 257 | Cell Biology | 7 | 162 | 3.8K | 4.7K |
| 258 | Analytical Chemistry | 6 | 159 | 4.1K | 3.9K |
| 258 | Paleopathology | 5 | 159 | 252 | 140 |
| 260 | environmental issues | 8 | 157 | 215 | 332 |
| 261 | Radio wave propagation | 15 | 156 | 355 | 455 |
| 261 | Social behavior | 8 | 156 | 749 | 1.0K |
| 261 | Continental shelf | 8 | 156 | 33 | 38 |
| 264 | Human Geography | 4 | 154 | 996 | 626 |
| 264 | Fertilizers | 6 | 154 | 278 | 300 |
| 266 | Systems Biology | 7 | 153 | 1.3K | 1.3K |
| 266 | plankton | 6 | 153 | 127 | 166 |
| 268 | Social Sciences | 16 | 152 | 1.7K | 2.0K |
| 268 | Information Systems | 6 | 152 | 1.0K | 1.0K |
| 268 | Business Ethics | 5 | 152 | 772 | 1.0K |
| 271 | management | 6 | 151 | 2.4K | 2.1K |
| 272 | Personality Assessment | 3 | 149 | 661 | 548 |
| 273 | Neuropsychology | 6 | 148 | 1.9K | 2.0K |
| 273 | Environmental Geology | 4 | 148 | 1.3K | 1.0K |
| 275 | Anatomy | 10 | 147 | 1.4K | 2.0K |
| 276 | animals | 8 | 144 | 1.0K | 930 |
| 276 | drug addiction | 2 | 144 | 1.7K | 1.2K |
| 278 | Immunology | 13 | 143 | 2.6K | 4.2K |
| 278 | Japan | 17 | 143 | 886 | 1.2K |
| 280 | Transportation | 7 | 142 | 968 | 1.0K |
| 280 | Roads | 7 | 142 | 534 | 435 |
| 282 | Dynamics | 3 | 139 | 2.0K | 1.0K |
| 283 | Teaching | 4 | 136 | 1.6K | 938 |
| 284 | Regional Planning | 12 | 133 | 799 | 1.1K |
| 285 | Pathology | 1 | 132 | 4.6K | 2.7K |
| 286 | Geodynamics | 6 | 128 | 195 | 244 |
| 287 | Criminology | 2 | 127 | 1.3K | 692 |
| 287 | Plant Taxonomy | 5 | 127 | 391 | 367 |
| 289 | Plant physiology | 5 | 126 | 1.8K | 2.2K |
| 290 | Forest Ecology | 7 | 125 | 373 | 521 |
| 291 | Urban Economics | 4 | 122 | 177 | 184 |
| 291 | Forest Management | 8 | 122 | 275 | 382 |
| 293 | environmental indicators | 3 | 119 | 535 | 612 |
| 294 | Environmental Education | 4 | 118 | 313 | 253 |
| 295 | weather forecasting | 4 | 117 | 166 | 191 |
| 296 | North America | 12 | 116 | 269 | 469 |
| 296 | Estuaries | 9 | 116 | 87 | 243 |
| 298 | Sociology | 11 | 115 | 1.7K | 2.4K |
| 298 | Engineering Geology | 12 | 115 | 606 | 1.1K |
| 298 | Biotelemetry | 8 | 115 | 16 | 48 |
| 298 | Geodesy | 6 | 115 | 399 | 384 |
| 298 | Food | 10 | 115 | 2.1K | 3.1K |
| 303 | Mental Disorders | 3 | 114 | 4.4K | 3.8K |
| 304 | Food Preservation | 6 | 112 | 514 | 363 |
| 305 | Epidemiology | 6 | 111 | 3.8K | 4.3K |
| 306 | Fluid Mechanics | 7 | 109 | 1.6K | 1.6K |
| 307 | Solid State Physics | 2 | 108 | 4.7K | 3.2K |
| 307 | Condensed Matter | 2 | 108 | 4.3K | 3.0K |
| 309 | atmosphere | 5 | 107 | 341 | 439 |
| 309 | health services | 4 | 107 | 1.2K | 1.1K |
| 311 | Biophysics | 7 | 106 | 5.1K | 5.8K |
| 312 | Electrochemistry | 6 | 104 | 2.8K | 2.8K |
| 313 | Mental illness | 2 | 103 | 3.4K | 2.8K |
| 314 | emergency management | 5 | 102 | 707 | 706 |
| 314 | Health promotion | 12 | 102 | 867 | 1.6K |
| 316 | Porous materials | 1 | 101 | 1.5K | 526 |
| 317 | Systems Engineering | 9 | 100 | 1.4K | 1.7K |
| 317 | disease vectors | 3 | 100 | 1.2K | 1.1K |
| 319 | Economic History | 15 | 99 | 1.8K | 2.2K |
| 319 | Renewable Energy Sources | 2 | 99 | 2.6K | 2.6K |
| 319 | finance | 7 | 99 | 1.5K | 1.6K |
| 322 | Juvenile delinquency | 1 | 98 | 527 | 254 |
| 322 | Parasitology | 8 | 98 | 1.9K | 2.4K |
| 322 | crime | 1 | 98 | 1.2K | 570 |
| 325 | Genetic engineering | 2 | 97 | 3.2K | 2.8K |
| 325 | Molecular cloning | 2 | 97 | 1.9K | 1.4K |
| 325 | Genetic recombination | 2 | 97 | 1.9K | 1.4K |
| 325 | marketing | 2 | 97 | 2.1K | 1.5K |
| 325 | Recombinant DNA | 2 | 97 | 2.1K | 1.5K |
| 325 | Australia | 12 | 97 | 1.0K | 1.7K |
| 331 | Maps | 5 | 96 | 106 | 83 |
| 332 | Highway Engineering | 6 | 95 | 281 | 261 |
| 333 | Herpetology | 2 | 94 | 470 | 153 |
| 333 | Lipids | 3 | 94 | 1.7K | 1.8K |
| 333 | Algae | 10 | 94 | 485 | 885 |
| 333 | Reptiles | 2 | 94 | 462 | 132 |
| 337 | Proteome | 2 | 90 | 1.9K | 1.9K |
| 338 | Ultrasonics | 2 | 89 | 1.5K | 1.4K |
| 339 | Cancer | 2 | 88 | 5.5K | 4.8K |
| 340 | Sustainable Engineering | 1 | 87 | 3.0K | 2.0K |
| 340 | Youth | 2 | 87 | 919 | 789 |
| 342 | environmental remediation | 8 | 86 | 107 | 348 |
| 342 | Protozoa | 2 | 86 | 608 | 501 |
| 342 | DNA | 6 | 86 | 416 | 635 |
| 345 | Africa | 2 | 85 | 2.5K | 1.0K |
| 346 | Europe | 5 | 84 | 3.4K | 3.1K |
| 347 | ethnicity | 4 | 83 | 678 | 504 |
| 348 | Futures | 3 | 82 | 372 | 320 |
| 348 | Paleobotany | 2 | 82 | 224 | 191 |
| 348 | Vegetation dynamics | 2 | 82 | 214 | 187 |
| 351 | Artificial Intelligence | 5 | 81 | 3.4K | 3.6K |
| 352 | Probability | 2 | 80 | 1.1K | 836 |
| 352 | Soil biology | 4 | 80 | 508 | 824 |
| 352 | probabilities | 2 | 80 | 1.7K | 912 |
| 355 | Parasites | 5 | 79 | 1.4K | 1.7K |
| 356 | Animal genetics | 4 | 78 | 548 | 647 |
| 357 | Quality Control | 4 | 77 | 1.6K | 1.6K |
| 357 | Risk assessment | 1 | 77 | 1.4K | 516 |
| 357 | ecological risk assessment | 1 | 77 | 692 | 291 |
| 357 | Business | 5 | 77 | 1.7K | 1.8K |
| 357 | Health Risk Assessment | 1 | 77 | 1.2K | 427 |
| 362 | Ecophysiology | 4 | 76 | 161 | 219 |
| 363 | Bioengineering | 3 | 75 | 5.2K | 5.7K |
| 363 | Health Education | 9 | 75 | 1.2K | 2.1K |
| 363 | Fisheries Law | 2 | 75 | 4 | 7 |
| 363 | radiocarbon dating | 7 | 75 | 224 | 355 |
| 363 | Substance Abuse | 4 | 75 | 1.6K | 1.7K |
| 363 | fisheries management | 2 | 75 | 4 | 7 |
| 369 | Intercultural Communication | 1 | 74 | 576 | 154 |
| 369 | Water quality | 1 | 74 | 671 | 231 |
| 369 | Water chemistry | 1 | 74 | 944 | 343 |
| 369 | Animal | 1 | 74 | 438 | 151 |
| 369 | Zoonoses | 2 | 74 | 509 | 458 |
| 374 | Cultural diversity | 2 | 73 | 251 | 250 |
| 374 | Tourism | 5 | 73 | 1.1K | 1.5K |
| 374 | Decision making | 4 | 73 | 1.6K | 1.7K |
| 374 | Primates | 4 | 73 | 820 | 891 |
| 378 | Restoration Ecology | 6 | 72 | 315 | 587 |
| 378 | Biodegradation | 3 | 72 | 556 | 700 |
| 378 | Water Microbiology | 3 | 72 | 553 | 659 |
| 378 | Fouling | 3 | 72 | 275 | 425 |
| 382 | Hazardous waste | 3 | 71 | 905 | 1.4K |
| 383 | Medical Anthropology | 5 | 70 | 1.0K | 1.8K |
| 384 | Gender Studies | 4 | 68 | 446 | 528 |
| 385 | Civil Engineering | 7 | 66 | 1.2K | 1.2K |
| 385 | Biomedical Engineering | 3 | 66 | 6.1K | 6.1K |
| 385 | Production Management | 1 | 66 | 1.5K | 1.2K |
| 385 | Therapeutics | 3 | 66 | 2.5K | 3.1K |
| 385 | Mountains | 35 | 66 | 23 | 259 |
| 390 | Cartography | 5 | 65 | 341 | 332 |
| 390 | Climate | 4 | 65 | 468 | 763 |
| 392 | Mechanical Engineering | 7 | 64 | 1.9K | 2.0K |
| 392 | Coastal zone management | 7 | 64 | 208 | 531 |
| 392 | rivers | 4 | 64 | 283 | 411 |
| 392 | Genes | 5 | 64 | 1.1K | 1.7K |
| 396 | Metallurgy | 5 | 63 | 2.0K | 2.2K |
| 396 | air quality management | 2 | 63 | 567 | 617 |
| 396 | Comparative Advertising | 1 | 63 | 169 | 89 |
| 396 | air | 3 | 63 | 28 | 85 |
| 396 | indoor air pollution | 2 | 63 | 630 | 600 |
| 396 | Ventilation | 2 | 63 | 851 | 695 |
| 396 | heredity | 4 | 63 | 750 | 958 |
| 396 | Sick building syndrome | 2 | 63 | 630 | 600 |
| 404 | Electronics | 4 | 62 | 3.9K | 3.9K |
| 404 | Plant Morphology | 1 | 62 | 983 | 559 |
| 404 | health behavior | 5 | 62 | 912 | 1.4K |
| 404 | Electrophoresis | 1 | 62 | 3.2K | 2.2K |
| 404 | Chromatography | 1 | 62 | 3.1K | 2.0K |
| 404 | Chromatographic analysis | 1 | 62 | 3.6K | 2.2K |
| 410 | History | 35 | 61 | 312 | 496 |
| 410 | Physical Geography | 33 | 61 | 48 | 592 |
| 410 | Behavioral Genetics | 2 | 61 | 399 | 475 |
| 410 | Ethnology | 8 | 61 | 974 | 1.2K |
| 410 | drug therapy | 2 | 61 | 3.6K | 3.5K |
| 415 | Thermodynamics | 3 | 60 | 874 | 602 |
| 415 | Child welfare | 3 | 60 | 1.1K | 1.2K |
| 415 | Group decision making | 4 | 60 | 427 | 620 |
| 415 | Population | 8 | 60 | 543 | 1.1K |
| 415 | Amphibians | 1 | 60 | 642 | 140 |
| 420 | Robotics | 4 | 59 | 1.6K | 1.9K |
| 421 | Chemical analysis | 2 | 58 | 1.9K | 1.8K |
| 421 | Ultrasonic Imaging | 1 | 58 | 895 | 565 |
| 421 | Invertebrates | 1 | 58 | 949 | 570 |
| 421 | Statistical physics | 3 | 58 | 3.9K | 3.7K |
| 421 | Ultrasound | 1 | 58 | 1.2K | 872 |
| 426 | Biocompatible Materials | 2 | 57 | 5.0K | 5.4K |
| 426 | plant molecular biology | 2 | 57 | 2.1K | 2.6K |
| 426 | proteins | 3 | 57 | 2.8K | 3.1K |
| 429 | Child | 4 | 56 | 3.0K | 3.3K |
| 429 | Photogrammetry | 2 | 56 | 236 | 127 |
| 431 | Maternal health services | 2 | 55 | 708 | 706 |
| 431 | food contamination | 2 | 55 | 1.6K | 1.3K |
| 431 | Women's health | 2 | 55 | 2.2K | 1.9K |
| 434 | Proteomics | 1 | 54 | 2.3K | 2.0K |
| 434 | Analytical Biochemistry | 1 | 54 | 3.1K | 2.1K |
| 434 | Real Estate Investment | 2 | 54 | 242 | 207 |
| 434 | Sports | 10 | 54 | 1.6K | 2.5K |
| 434 | Reservoirs | 9 | 54 | 71 | 197 |
| 439 | Psychopharmacology | 3 | 53 | 2.1K | 2.6K |
| 439 | Marine resources | 5 | 53 | 234 | 509 |
| 439 | Adolescent | 5 | 53 | 2.1K | 2.8K |
| 439 | drug abuse | 5 | 53 | 599 | 934 |
| 439 | wildlife diseases | 4 | 53 | 88 | 131 |
| 444 | Developmental Biology | 3 | 52 | 2.5K | 3.3K |
| 444 | foods | 3 | 52 | 310 | 307 |
| 446 | Feminism | 3 | 51 | 633 | 573 |
| 446 | invasive plants | 5 | 51 | 46 | 78 |
| 446 | radioactive waste | 2 | 51 | 930 | 1.5K |
| 446 | industrial waste | 2 | 51 | 1.0K | 1.6K |
| 450 | Pharmacognosy | 3 | 50 | 2.0K | 2.7K |
| 450 | Public Policy | 1 | 50 | 3.2K | 2.4K |
| 450 | Computer-Aided Design | 1 | 50 | 2.1K | 1.3K |
| 450 | Freshwater invertebrates | 2 | 50 | 141 | 255 |
| 450 | Regional Development | 5 | 50 | 206 | 408 |
| 450 | Development planning | 5 | 50 | 167 | 382 |
| 450 | natural products | 3 | 50 | 2.3K | 2.4K |
| 450 | Economic planning | 5 | 50 | 205 | 499 |
| 458 | coal | 2 | 49 | 940 | 1.3K |
| 459 | Tribology | 4 | 48 | 997 | 1.2K |
| 459 | Environmental Toxicology | 6 | 48 | 2.1K | 4.1K |
| 459 | Electron Microscopy | 1 | 48 | 862 | 587 |
| 459 | animal diseases | 2 | 48 | 738 | 714 |
| 463 | Ichthyology | 5 | 47 | 412 | 535 |
| 463 | Cosmochemistry | 4 | 47 | 416 | 613 |
| 463 | Fish | 5 | 47 | 311 | 446 |
| 466 | Nonlinear Dynamics | 1 | 46 | 3.5K | 2.8K |
| 467 | Catalysis | 3 | 45 | 3.5K | 4.2K |
| 467 | Mental Health | 2 | 45 | 2.5K | 2.4K |
| 467 | health and race | 3 | 45 | 281 | 407 |
| 467 | ethnic groups | 3 | 45 | 362 | 461 |
| 471 | Food Safety | 1 | 44 | 685 | 327 |
| 471 | Chemical Oceanography | 2 | 44 | 111 | 161 |
| 471 | food handling | 1 | 44 | 1.1K | 913 |
| 474 | Phytochemistry | 6 | 43 | 124 | 533 |
| 474 | Phytoremediation | 6 | 43 | 124 | 533 |
| 474 | Bioreactors | 6 | 43 | 124 | 533 |
| 474 | Developing countries | 5 | 43 | 1.6K | 2.7K |
| 478 | Energy Conversion | 1 | 42 | 2.1K | 2.0K |
| 478 | Energy Storage | 1 | 42 | 2.3K | 1.7K |
| 478 | Veterinary Immunology | 3 | 42 | 290 | 424 |
| 478 | fuel cells | 1 | 42 | 2.2K | 2.0K |
| 478 | Great Lakes | 3 | 42 | 98 | 168 |
| 483 | Structural Engineering | 4 | 41 | 1.2K | 1.4K |
| 483 | Pediatrics | 2 | 41 | 4.0K | 4.4K |
| 483 | Algorithms | 1 | 41 | 1.3K | 758 |
| 483 | Rheology | 1 | 41 | 1.3K | 943 |
| 483 | Spine | 1 | 41 | 1.5K | 1.5K |
| 483 | Extreme environments | 2 | 41 | 364 | 598 |
| 489 | Geometry | 11 | 40 | 628 | 973 |
| 489 | Intelligent Transportation Systems | 2 | 40 | 1.4K | 1.4K |
| 489 | Coastal Engineering | 7 | 40 | 52 | 146 |
| 489 | Metabolism | 3 | 40 | 3.6K | 5.0K |
| 489 | Hypertension | 2 | 40 | 2.8K | 3.8K |
| 489 | Travel | 4 | 40 | 853 | 1.2K |
| 489 | Microorganisms | 3 | 40 | 1.6K | 2.5K |
| 496 | Animal husbandry | 1 | 39 | 796 | 462 |
| 496 | Asia | 4 | 39 | 2.7K | 3.0K |
| 496 | Sedimentary rocks | 1 | 39 | 553 | 323 |
| 496 | organization | 1 | 39 | 1.2K | 1.1K |
| 496 | livestock | 2 | 39 | 873 | 631 |
| 501 | Political Science | 6 | 38 | 1.7K | 1.8K |
| 501 | Morphology | 3 | 38 | 1.0K | 1.2K |
| 501 | Microelectronics | 3 | 38 | 2.1K | 2.8K |
| 501 | Nationalism | 1 | 38 | 932 | 390 |
| 501 | Information Science | 2 | 38 | 2.7K | 2.6K |
| 506 | Building Materials | 1 | 37 | 1.7K | 1.7K |
| 506 | Pharmacogenetics | 1 | 37 | 2.3K | 2.2K |
| 506 | shellfish | 3 | 37 | 154 | 201 |
| 506 | Vaccines | 2 | 37 | 2.5K | 2.9K |
| 510 | Palynology | 1 | 36 | 587 | 394 |
| 510 | Marine Biotechnology | 1 | 36 | 560 | 586 |
| 510 | economic policy | 4 | 36 | 2.4K | 2.5K |
| 513 | Traffic Engineering | 3 | 35 | 447 | 751 |
| 513 | behavioral medicine | 3 | 35 | 1.7K | 2.8K |
| 513 | Adhesion | 2 | 35 | 784 | 776 |
| 513 | Chemical industry | 1 | 35 | 2.6K | 1.8K |
| 513 | adhesives | 2 | 35 | 854 | 791 |
| 513 | Metals | 2 | 35 | 2.6K | 2.4K |
| 519 | Rock Mechanics | 3 | 34 | 749 | 1.0K |
| 519 | Evolutionary Genetics | 3 | 34 | 700 | 1.2K |
| 519 | Oral Medicine | 1 | 34 | 1.3K | 770 |
| 519 | Molecular Epidemiology | 3 | 34 | 700 | 1.2K |
| 519 | Sports Medicine | 9 | 34 | 2.1K | 3.6K |
| 519 | Child Development | 2 | 34 | 2.7K | 3.3K |
| 519 | Soil fertility | 2 | 34 | 528 | 840 |
| 519 | Child psychology | 1 | 34 | 2.8K | 2.7K |
| 519 | Documentation | 1 | 34 | 755 | 541 |
| 519 | Soil ecology | 2 | 34 | 715 | 1.1K |
| 529 | Biological Systems | 1 | 33 | 1.7K | 1.4K |
| 529 | Water quality management | 6 | 33 | 1.6K | 3.0K |
| 529 | Cardiovascular diseases | 2 | 33 | 2.6K | 2.7K |
| 532 | Medical genetics | 2 | 32 | 4.3K | 5.5K |
| 532 | Telecommunications | 1 | 32 | 1.5K | 829 |
| 532 | Control Theory | 3 | 32 | 1.9K | 2.2K |
| 532 | dietary supplements | 2 | 32 | 741 | 1.1K |
| 532 | Broadcasting | 1 | 32 | 352 | 278 |
| 532 | Mortgages | 2 | 32 | 279 | 393 |
| 532 | Telecommunication | 1 | 32 | 4.4K | 3.1K |
| 532 | body temperature | 4 | 32 | 227 | 619 |
| 532 | ecotourism | 3 | 32 | 174 | 422 |
| 541 | Freshwater Ecology | 3 | 31 | 306 | 375 |
| 541 | Petroleum Geology | 1 | 31 | 562 | 557 |
| 541 | Diabetes mellitus | 2 | 31 | 3.3K | 4.2K |
| 541 | Sonochemistry | 1 | 31 | 1.0K | 1.3K |
| 541 | Steroids | 1 | 31 | 1.6K | 1.6K |
| 541 | Diabetes | 2 | 31 | 3.4K | 4.3K |
| 547 | Medical Laboratory Science | 3 | 30 | 2.8K | 4.4K |
| 547 | Epigenetics | 1 | 30 | 521 | 452 |
| 547 | Epigenomics | 1 | 30 | 509 | 443 |
| 547 | carbon monoxide | 1 | 30 | 309 | 490 |
| 551 | Nonparametric Statistics | 1 | 29 | 398 | 224 |
| 551 | Medical Microbiology | 1 | 29 | 4.5K | 4.8K |
| 551 | Ocean Engineering | 3 | 29 | 1.0K | 1.5K |
| 554 | Graph Theory | 7 | 28 | 480 | 730 |
| 554 | Total Quality Management | 1 | 28 | 938 | 759 |
| 556 | Nuclear Energy | 2 | 27 | 1.4K | 1.2K |
| 556 | Parasitic Diseases | 2 | 27 | 3.1K | 3.9K |
| 556 | international trade | 1 | 27 | 1.3K | 885 |
| 556 | Radioisotopes | 3 | 27 | 1.2K | 1.5K |
| 556 | Petroleum | 4 | 27 | 306 | 419 |
| 556 | Ore deposits | 2 | 27 | 517 | 707 |
| 562 | Medical Technology | 1 | 26 | 4.0K | 3.6K |
| 562 | Measurement | 1 | 26 | 1.7K | 1.5K |
| 562 | cell interaction | 2 | 26 | 1.8K | 2.5K |
| 562 | energy development | 3 | 26 | 868 | 1.6K |
| 566 | Bioenergetics | 2 | 25 | 957 | 1.6K |
| 566 | Paleobiology | 1 | 25 | 664 | 474 |
| 566 | Energy metabolism | 2 | 25 | 660 | 1.1K |
| 566 | Investigations | 1 | 25 | 17 | 9 |
| 566 | cell membrane | 2 | 25 | 576 | 973 |
| 571 | Atmospheric Science | 3 | 24 | 125 | 183 |
| 571 | Signal Transduction | 1 | 24 | 2.7K | 3.0K |
| 571 | Nutrition physiology | 2 | 24 | 1.2K | 1.8K |
| 571 | Natural resources | 2 | 24 | 916 | 1.3K |
| 571 | Moon | 2 | 24 | 298 | 314 |
| 571 | Korea | 3 | 24 | 368 | 471 |
| 571 | Nutrigenomics | 2 | 24 | 158 | 417 |
| 571 | economic analysis | 2 | 24 | 115 | 207 |
| 579 | Oxidative stress | 1 | 23 | 2.4K | 2.8K |
| 579 | health services accessibility | 1 | 23 | 2.0K | 1.7K |
| 579 | Cellular senescence | 1 | 23 | 1.7K | 2.1K |
| 579 | Socioeconomic Factors | 1 | 23 | 1.7K | 1.8K |
| 579 | Antioxidants | 1 | 23 | 1.7K | 2.1K |
| 579 | vitamin C | 1 | 23 | 990 | 1.3K |
| 579 | Creativity | 1 | 23 | 391 | 467 |
| 579 | vitamin E | 1 | 23 | 990 | 1.3K |
| 587 | Algebra | 3 | 22 | 1.5K | 1.3K |
| 587 | soil conservation | 1 | 22 | 1.7K | 1.7K |
| 587 | soil pollution | 1 | 22 | 1.3K | 1.2K |
| 587 | Medical innovations | 1 | 22 | 2.2K | 3.1K |
| 587 | biomimicry | 1 | 22 | 306 | 383 |
| 592 | Biochemical Engineering | 1 | 21 | 4.5K | 5.3K |
| 592 | Polymers | 3 | 21 | 5.3K | 6.7K |
| 592 | Cognitive Therapy | 1 | 21 | 1.2K | 1.3K |
| 592 | lakes | 3 | 21 | 77 | 206 |
| 592 | Groundwater | 4 | 21 | 765 | 1.4K |
| 592 | polymerization | 3 | 21 | 4.4K | 5.6K |
| 598 | Occupational Therapy | 1 | 20 | 2.4K | 1.8K |
| 598 | Nanochemistry | 1 | 20 | 2.3K | 2.2K |
| 598 | Mental Health Services | 3 | 20 | 1.8K | 2.9K |
| 598 | fishing industry | 2 | 20 | 287 | 427 |
| 598 | Work | 1 | 20 | 681 | 641 |
| 598 | United Kingdom | 1 | 20 | 3.3K | 3.4K |
| 598 | Isotopes | 2 | 20 | 179 | 301 |
| 605 | Human genetics | 2 | 19 | 3.4K | 5.4K |
| 605 | Material Culture | 1 | 19 | 270 | 213 |
| 605 | Energy Consumption | 1 | 19 | 791 | 976 |
| 605 | Discrete geometry | 5 | 19 | 189 | 439 |
| 605 | Microbial Metabolism | 1 | 19 | 492 | 771 |
| 605 | protein | 1 | 19 | 2.4K | 2.6K |
| 605 | Communication | 2 | 19 | 2.7K | 3.2K |
| 612 | Humanities | 4 | 18 | 1.8K | 2.3K |
| 612 | Ethnobotany | 2 | 18 | 331 | 610 |
| 612 | Plate Tectonics | 1 | 18 | 372 | 382 |
| 612 | Animal breeding | 1 | 18 | 1.3K | 1.3K |
| 612 | Synaptic Transmission | 1 | 18 | 1.1K | 1.4K |
| 612 | Traditional medicine | 2 | 18 | 481 | 797 |
| 612 | Optical materials | 1 | 18 | 3.7K | 4.2K |
| 612 | ethnobiology | 4 | 18 | 206 | 681 |
| 612 | Genetic markers | 1 | 18 | 751 | 871 |
| 612 | Reproduction | 1 | 18 | 4.3K | 4.6K |
| 612 | Combinatorial analysis | 6 | 18 | 691 | 967 |
| 612 | Phytotherapy | 2 | 18 | 1.3K | 2.2K |
| 612 | biochemical markers | 1 | 18 | 2.0K | 2.1K |
| 612 | Ethnomedicine | 2 | 18 | 264 | 597 |
| 626 | Clinical Trials | 1 | 17 | 977 | 1.1K |
| 626 | Queer Studies | 1 | 17 | 615 | 746 |
| 626 | Combustion | 3 | 17 | 946 | 1.6K |
| 626 | Research Design | 1 | 17 | 2.4K | 2.7K |
| 626 | Immunogenetics | 1 | 17 | 1.6K | 1.9K |
| 626 | Hormones | 1 | 17 | 2.4K | 2.8K |
| 626 | homosexuality | 1 | 17 | 863 | 953 |
| 626 | city planning | 6 | 17 | 1.1K | 2.5K |
| 626 | Exercise | 1 | 17 | 2.7K | 2.5K |
| 635 | Mining Engineering | 3 | 16 | 354 | 566 |
| 635 | Histology | 2 | 16 | 2.9K | 4.3K |
| 635 | Public Administration | 3 | 16 | 1.6K | 2.3K |
| 635 | Environmental Economics | 1 | 16 | 886 | 938 |
| 635 | Political Ecology | 1 | 16 | 186 | 116 |
| 635 | vibration | 3 | 16 | 1.3K | 1.9K |
| 635 | Raman spectroscopy | 1 | 16 | 1.4K | 1.7K |
| 635 | Sound | 4 | 16 | 1.1K | 1.9K |
| 635 | administrative agencies | 1 | 16 | 569 | 535 |
| 635 | crime victims | 1 | 16 | 347 | 388 |
| 635 | violence | 1 | 16 | 1.8K | 2.0K |
| 635 | Aggression | 1 | 16 | 847 | 1.0K |
| 635 | herbicides | 2 | 16 | 542 | 879 |
| 648 | Oncology | 1 | 15 | 4.4K | 5.4K |
| 648 | Geographic information systems | 1 | 15 | 2.2K | 2.1K |
| 648 | Volcanism | 1 | 15 | 28 | 21 |
| 648 | Thermochemistry | 2 | 15 | 242 | 478 |
| 648 | Neural circuitry | 1 | 15 | 2.9K | 3.3K |
| 648 | Metabolic diseases | 1 | 15 | 4.5K | 5.4K |
| 648 | Portfolio Management | 3 | 15 | 427 | 656 |
| 648 | Urban Areas | 5 | 15 | 147 | 570 |
| 648 | national security | 1 | 15 | 877 | 627 |
| 648 | South America | 1 | 15 | 255 | 137 |
| 648 | Espionage | 1 | 15 | 103 | 46 |
| 648 | weight loss | 2 | 15 | 242 | 482 |
| 660 | Socialization | 1 | 14 | 998 | 1.4K |
| 660 | Judgment | 1 | 14 | 272 | 379 |
| 660 | Developmental Neurobiology | 2 | 14 | 934 | 1.5K |
| 660 | International Finance | 2 | 14 | 1.5K | 2.2K |
| 660 | role | 1 | 14 | 826 | 1.2K |
| 660 | Law enforcement | 1 | 14 | 202 | 261 |
| 660 | police | 1 | 14 | 744 | 638 |
| 667 | Organic Chemistry | 1 | 13 | 4.9K | 5.3K |
| 667 | Environmental Law | 2 | 13 | 1.4K | 2.8K |
| 667 | Fluid Dynamics | 2 | 13 | 1.4K | 1.9K |
| 667 | Cytogenetics | 1 | 13 | 3.2K | 4.0K |
| 667 | Enteral nutrition | 1 | 13 | 1.9K | 2.4K |
| 667 | Sexual health | 1 | 13 | 1.6K | 1.6K |
| 667 | Parenteral nutrition | 1 | 13 | 2.3K | 2.8K |
| 667 | Library Science | 4 | 13 | 1.2K | 1.8K |
| 667 | Nomadism | 2 | 13 | 83 | 143 |
| 676 | Early Childhood Education | 1 | 12 | 1.0K | 1.1K |
| 676 | Nuclear Physics | 2 | 12 | 5.0K | 5.7K |
| 676 | clay | 2 | 12 | 691 | 1.5K |
| 676 | sustainable forestry | 1 | 12 | 330 | 348 |
| 676 | clay minerals | 2 | 12 | 427 | 858 |
| 681 | Agricultural Science | 1 | 11 | 192 | 350 |
| 681 | Health Policy | 1 | 11 | 5.0K | 5.7K |
| 681 | mental health policy | 1 | 11 | 487 | 660 |
| 681 | Pesticide residues | 1 | 11 | 196 | 356 |
| 681 | Marine Geophysics | 6 | 11 | 150 | 673 |
| 681 | Food additives | 1 | 11 | 1.9K | 2.5K |
| 681 | Noise | 2 | 11 | 198 | 330 |
| 681 | Public Choice | 2 | 11 | 495 | 847 |
| 681 | Outdoor recreation | 2 | 11 | 31 | 148 |
| 681 | at-risk youth | 1 | 11 | 220 | 373 |
| 681 | Emotions | 1 | 11 | 1.1K | 1.5K |
| 692 | Structural optimization | 1 | 10 | 751 | 959 |
| 692 | Environmental Ethics | 2 | 10 | 239 | 371 |
| 692 | Earthquake Engineering | 1 | 10 | 1.5K | 1.9K |
| 692 | Action Research | 2 | 10 | 324 | 665 |
| 692 | Wetland ecology | 3 | 10 | 541 | 1.3K |
| 692 | Religion and Sociology | 1 | 10 | 551 | 405 |
| 692 | Wetland conservation | 3 | 10 | 366 | 1.0K |
| 692 | Developmental Immunology | 2 | 10 | 1.2K | 2.2K |
| 692 | mycoses | 1 | 10 | 1.9K | 2.5K |
| 692 | forest policy | 3 | 10 | 282 | 736 |
| 692 | Fungi | 1 | 10 | 1.5K | 2.0K |
| 692 | Solar System | 2 | 10 | 792 | 1.2K |
| 692 | Wetlands | 3 | 10 | 378 | 1.0K |
| 705 | Ethics | 1 | 9 | 2.1K | 2.4K |
| 705 | Marine Geology | 4 | 9 | 283 | 931 |
| 705 | Kinetics | 2 | 9 | 823 | 1.5K |
| 705 | Environmental Archaeology | 2 | 9 | 116 | 269 |
| 705 | Social Ethics | 1 | 9 | 379 | 375 |
| 705 | Marine mineral resources | 4 | 9 | 105 | 425 |
| 705 | Chemical kinetics | 2 | 9 | 1.2K | 1.6K |
| 705 | Beetles | 3 | 9 | 160 | 211 |
| 705 | Social problems | 2 | 9 | 626 | 1.1K |
| 705 | Seabed | 4 | 9 | 105 | 425 |
| 705 | drug toxicity | 1 | 9 | 906 | 1.5K |
| 705 | harm reduction | 1 | 9 | 508 | 662 |
| 705 | Mollusks | 2 | 9 | 359 | 575 |
| 718 | Linguistics | 4 | 8 | 1.5K | 2.3K |
| 718 | Signal Processing | 1 | 8 | 3.9K | 4.6K |
| 718 | Electronic Packaging | 1 | 8 | 524 | 687 |
| 718 | Sleep Disorders | 1 | 8 | 3.1K | 3.7K |
| 718 | Organic Geochemistry | 1 | 8 | 187 | 387 |
| 718 | Smoking | 1 | 8 | 1.4K | 2.1K |
| 718 | Family Therapy | 1 | 8 | 1.5K | 1.8K |
| 718 | System analysis | 2 | 8 | 3.3K | 5.0K |
| 718 | Family | 1 | 8 | 1.8K | 2.5K |
| 718 | families | 1 | 8 | 1.6K | 2.0K |
| 718 | Social work | 2 | 8 | 2.0K | 3.2K |
| 718 | Nuclear family | 1 | 8 | 336 | 420 |
| 718 | Insects | 1 | 8 | 2.6K | 3.0K |
| 718 | Sleep | 1 | 8 | 3.1K | 3.6K |
| 718 | Birth control | 2 | 8 | 731 | 1.6K |
| 733 | International Relations | 2 | 7 | 2.0K | 2.2K |
| 733 | Distance Education | 3 | 7 | 471 | 1.3K |
| 733 | Ceramics | 1 | 7 | 2.9K | 3.3K |
| 733 | Agricultural Economics | 1 | 7 | 240 | 368 |
| 733 | Bilingual Education | 1 | 7 | 138 | 238 |
| 733 | Food Microbiology | 2 | 7 | 1.8K | 3.3K |
| 733 | Pragmatics | 3 | 7 | 73 | 195 |
| 733 | Radiopharmaceuticals | 1 | 7 | 922 | 976 |
| 733 | terrorism | 1 | 7 | 623 | 755 |
| 733 | preventive medicine | 1 | 7 | 2.7K | 3.6K |
| 733 | Phylogenetics | 1 | 7 | 257 | 413 |
| 733 | actuators | 2 | 7 | 1.8K | 3.3K |
| 733 | Electrophysiology | 1 | 7 | 2.3K | 2.9K |
| 733 | social conflict | 1 | 7 | 420 | 539 |
| 733 | Societies | 1 | 7 | 602 | 572 |
| 733 | Glass | 1 | 7 | 2.2K | 2.8K |
| 733 | pottery | 1 | 7 | 2.1K | 2.7K |
| 733 | Forest genetics | 1 | 7 | 729 | 974 |
| 733 | transducers | 2 | 7 | 1.8K | 3.3K |
| 752 | Optics | 4 | 6 | 4.8K | 7.1K |
| 752 | Dendrochronology | 1 | 6 | 81 | 152 |
| 752 | Bioethics | 1 | 6 | 2.0K | 2.4K |
| 752 | Medical Ethics | 1 | 6 | 2.7K | 3.2K |
| 752 | Smart Materials | 1 | 6 | 1.4K | 2.0K |
| 752 | Crystallography | 3 | 6 | 2.1K | 3.1K |
| 752 | Intelligent Control Systems | 1 | 6 | 2.3K | 2.6K |
| 752 | visualization | 3 | 6 | 2.3K | 3.2K |
| 752 | scientific research | 2 | 6 | 104 | 183 |
| 752 | enzymes | 1 | 6 | 2.5K | 3.5K |
| 752 | Muscle contraction | 3 | 6 | 343 | 843 |
| 763 | Ophthalmology | 1 | 5 | 3.1K | 4.1K |
| 763 | Transportation Engineering | 1 | 5 | 732 | 1.1K |
| 763 | Econometrics | 2 | 5 | 1.9K | 2.8K |
| 763 | Horticulture | 2 | 5 | 1.2K | 2.1K |
| 763 | Developmental Psychology | 1 | 5 | 1.9K | 2.6K |
| 763 | Forecasting | 1 | 5 | 965 | 1.3K |
| 763 | Happiness | 1 | 5 | 920 | 1.5K |
| 763 | Ceramic materials | 1 | 5 | 2.0K | 2.6K |
| 763 | Social policy | 1 | 5 | 1.8K | 2.3K |
| 763 | Soil | 1 | 5 | 356 | 662 |
| 763 | ports | 1 | 5 | 400 | 729 |
| 763 | Quality of life | 1 | 5 | 3.2K | 4.7K |
| 763 | Radio | 1 | 5 | 2.8K | 3.4K |
| 763 | rehabilitation | 1 | 5 | 4.5K | 5.9K |
| 763 | Heterocyclic compounds | 1 | 5 | 1.9K | 2.4K |
| 778 | Anthropological Linguistics | 2 | 4 | 407 | 671 |
| 778 | Language Acquisition | 1 | 4 | 984 | 1.3K |
| 778 | Bilingualism | 1 | 4 | 507 | 794 |
| 778 | DNS | 1 | 4 | 1.2K | 2.0K |
| 778 | European integration | 1 | 4 | 469 | 708 |
| 778 | Microbiota | 1 | 4 | 147 | 294 |
| 778 | training | 1 | 4 | 165 | 189 |
| 778 | scientific societies | 1 | 4 | 1.7K | 2.7K |
| 778 | Jurisprudence | 1 | 4 | 2.1K | 2.8K |
| 778 | mathematical analysis | 2 | 4 | 2.6K | 3.4K |
| 778 | Investments | 1 | 4 | 853 | 1.1K |
| 778 | European Economic Community | 1 | 4 | 458 | 704 |
| 790 | Real Estate Development | 1 | 3 | 74 | 133 |
| 790 | Phonetics | 1 | 3 | 603 | 884 |
| 790 | Phonology | 1 | 3 | 180 | 274 |
| 790 | Sociolinguistics | 2 | 3 | 752 | 1.2K |
| 790 | Industrial Microbiology | 1 | 3 | 3.8K | 5.3K |
| 790 | Stochastic Processes | 1 | 3 | 1.7K | 2.4K |
| 790 | community development | 1 | 3 | 890 | 1.3K |
| 790 | nutrition policy | 1 | 3 | 249 | 426 |
| 790 | sustainable construction | 1 | 3 | 32 | 76 |
| 790 | Politics | 1 | 3 | 1.3K | 1.4K |
| 790 | Second Language Acquisition | 1 | 3 | 470 | 679 |
| 790 | Qualitative Research | 1 | 3 | 909 | 1.4K |
| 790 | Investment analysis | 1 | 3 | 790 | 1.2K |
| 790 | Causality | 1 | 3 | 58 | 99 |
| 790 | air quality | 1 | 3 | 593 | 1.2K |
| 790 | Causation | 1 | 3 | 58 | 99 |
| 790 | landscapes | 1 | 3 | 449 | 771 |
| 790 | Plastics | 1 | 3 | 3.1K | 4.1K |
| 790 | Semigroups | 1 | 3 | 569 | 686 |
| 790 | nuclear power | 1 | 3 | 697 | 811 |
| 790 | child sexual abuse | 1 | 3 | 356 | 684 |
| 790 | government | 1 | 3 | 1.4K | 1.7K |
| 790 | mortality | 1 | 3 | 179 | 304 |
| 790 | death | 1 | 3 | 722 | 1.2K |
| 790 | Bereavement | 1 | 3 | 424 | 682 |
| 815 | Literature | 5 | 2 | 758 | 1.0K |
| 815 | Oral History | 1 | 2 | 76 | 83 |
| 815 | Environmental Geography | 1 | 2 | 111 | 222 |
| 815 | Rock deformation | 1 | 2 | 127 | 296 |
| 815 | Neuroanatomy | 1 | 2 | 421 | 865 |
| 815 | Strategic planning | 1 | 2 | 1.4K | 2.2K |
| 815 | Inflammation | 1 | 2 | 2.7K | 4.0K |
| 815 | Turbulence | 1 | 2 | 509 | 813 |
| 815 | Sexuality | 1 | 2 | 621 | 1.1K |
| 815 | cell adhesion molecules | 1 | 2 | 1.3K | 2.2K |
| 815 | natural history museums | 1 | 2 | 236 | 321 |
| 815 | peptides | 1 | 2 | 2.0K | 3.0K |
| 815 | cytokines | 1 | 2 | 2.5K | 3.7K |
| 815 | Communication in politics | 1 | 2 | 361 | 696 |
| 815 | magmatism | 1 | 2 | 74 | 154 |
| 815 | Classification | 1 | 2 | 887 | 1.3K |
| 815 | cataloging | 1 | 2 | 274 | 343 |
| 815 | weather | 1 | 2 | 1.1K | 2.0K |
| 815 | Spanish language | 1 | 2 | 300 | 245 |
| 815 | Flow cytometry | 1 | 2 | 1.1K | 1.8K |
| 815 | Cell communication | 1 | 2 | 1.9K | 2.9K |
| 836 | Radio Astronomy | 2 | 1 | 36 | 65 |
| 836 | Automation | 1 | 1 | 3.4K | 4.8K |
| 836 | Agricultural Education | 1 | 1 | 308 | 536 |
| 836 | Hydraulic Engineering | 1 | 1 | 1.6K | 2.4K |
| 836 | Industrial Sociology | 1 | 1 | 297 | 537 |
| 836 | Numerical Analysis | 2 | 1 | 3.0K | 5.0K |
| 836 | Organizational Behavior | 1 | 1 | 954 | 1.5K |
| 836 | Music | 2 | 1 | 1.4K | 2.4K |
| 836 | Multicultural Education | 1 | 1 | 680 | 1.1K |
| 836 | Music Theory | 1 | 1 | 246 | 273 |
| 836 | Agricultural Biotechnology | 1 | 1 | 675 | 943 |
| 836 | Discrete Mathematics | 2 | 1 | 520 | 982 |
| 836 | Language and Culture | 1 | 1 | 400 | 696 |
| 836 | Plant genetic engineering | 1 | 1 | 1.8K | 2.8K |
| 836 | Treaties | 3 | 1 | 55 | 157 |
| 836 | local government | 1 | 1 | 703 | 1.2K |
| 836 | water resources | 1 | 1 | 464 | 781 |
| 836 | Plant tissue culture | 1 | 1 | 1.4K | 2.2K |
| 836 | philology | 2 | 1 | 977 | 935 |
| 836 | civilization | 1 | 1 | 2.4K | 2.3K |
| 836 | East Asia | 2 | 1 | 1.3K | 2.0K |
| 836 | graph | 2 | 1 | 520 | 982 |
| 836 | labor | 1 | 1 | 680 | 944 |
| 836 | Antibodies | 1 | 1 | 1.1K | 1.9K |
| 836 | industrial relations | 1 | 1 | 1.4K | 2.2K |
| 836 | environmental exposure | 2 | 1 | 2.9K | 5.6K |
| 836 | libraries | 2 | 1 | 1.1K | 1.7K |
| 836 | Antigens | 1 | 1 | 1.6K | 2.6K |
| 836 | Southeast Asia | 1 | 1 | 1.0K | 1.4K |
| 836 | internet | 1 | 1 | 2.5K | 3.7K |
| 836 | Culture | 1 | 1 | 2.3K | 3.3K |
| 836 | women | 1 | 1 | 1.7K | 2.5K |
| 836 | Nonlinear systems | 1 | 1 | 1.2K | 1.8K |
| 869 | Computer Science | 1 | 0 | 4.1K | 6.0K |
| 869 | Computer Graphics | 1 | 0 | 2.6K | 4.0K |
| 869 | Chronobiology | 1 | 0 | 1.0K | 1.8K |
| 869 | Phenomenology | 1 | 0 | 518 | 786 |
| 869 | American Literature | 2 | 0 | 952 | 1.1K |
| 869 | Photography | 1 | 0 | 3.1K | 4.0K |
| 869 | Theater | 2 | 0 | 457 | 603 |
| 869 | Religion and Politics | 1 | 0 | 320 | 498 |
| 869 | Gastronomy | 1 | 0 | 100 | 140 |
| 869 | Quantum electronics | 1 | 0 | 3.0K | 4.1K |
| 869 | Human-Computer Interaction | 1 | 0 | 2.9K | 4.7K |
| 869 | War | 1 | 0 | 492 | 928 |
| 869 | Virtual reality | 1 | 0 | 903 | 1.6K |
| 869 | Ethnic relations | 1 | 0 | 1.3K | 1.9K |
| 869 | Emerging infectious diseases | 1 | 0 | 826 | 1.5K |
| 869 | Circadian rhythms | 1 | 0 | 730 | 1.4K |
| 869 | Religion | 2 | 0 | 1.6K | 2.5K |
| 869 | biological clocks | 1 | 0 | 1.0K | 1.8K |
| 869 | Church History | 2 | 0 | 971 | 870 |
| 869 | Elderly | 3 | 0 | 1.7K | 3.3K |
| 869 | Renaissance | 1 | 0 | 1.0K | 688 |
| 869 | territorial expansion | 1 | 0 | 227 | 122 |
| 869 | Christianity | 2 | 0 | 338 | 612 |
| 869 | circadian rhythm | 1 | 0 | 1.0K | 1.8K |
| 869 | biological rhythms | 1 | 0 | 955 | 1.8K |
| 869 | civil war | 1 | 0 | 119 | 304 |
| 869 | lasers | 1 | 0 | 3.6K | 4.8K |