4.6K(top 1%)
PR articles
188.1K(top 1%)
PR citations
159(top 1%)
PR h-index
174(top 1%)
h-index
5.0K
documents
246.1K
doc citations
9.9K
citing journals
Top Disciplines (by peer-reviewed citations)
| # | Discipline | Articles | Citations | A pos | C pos |
|---|---|---|---|---|---|
| 1 | Biology | 267 | 38.7K | 488 | 420 |
| 2 | Ecology | 531 | 35.8K | 54 | 93 |
| 3 | Science | 178 | 35.3K | 809 | 465 |
| 4 | Pollution | 421 | 32.5K | 21 | 21 |
| 5 | Physics | 61 | 25.0K | 3,251 | 660 |
| 6 | Environment | 186 | 22.5K | 58 | 38 |
| 7 | Natural history | 34 | 19.8K | 965 | 507 |
| 8 | Biodiversity conservation | 110 | 15.9K | 8 | 9 |
| 9 | environmental pollution | 282 | 15.0K | 16 | 20 |
| 10 | Climate change | 90 | 14.8K | 3 | 5 |
| 10 | Eutrophication | 90 | 14.8K | 3 | 5 |
| 12 | Botany | 236 | 12.9K | 84 | 109 |
| 13 | Environmental Health | 158 | 9.9K | 181 | 195 |
| 14 | Environmental monitoring | 102 | 7.5K | 100 | 55 |
| 15 | Animal Behavior | 153 | 7.1K | 32 | 73 |
| 16 | Environmental Engineering | 94 | 6.8K | 178 | 178 |
| 17 | Biochemistry | 133 | 6.7K | 2,031 | 1,767 |
| 18 | Chemistry | 66 | 6.5K | 3,892 | 2,297 |
| 19 | Evolution | 117 | 6.3K | 47 | 137 |
| 20 | Zoology | 167 | 5.9K | 17 | 23 |
| 21 | Molecular Biology | 104 | 5.8K | 1,632 | 2,097 |
| 22 | Toxicology | 122 | 5.6K | 164 | 167 |
| 23 | Earth Sciences | 22 | 5.5K | 620 | 55 |
| 24 | Biodiversity | 83 | 5.5K | 29 | 39 |
| 25 | Ethology | 123 | 5.4K | 27 | 77 |
| 26 | environmental protection | 67 | 5.4K | 107 | 42 |
| 27 | Plant physiology | 83 | 4.8K | 63 | 105 |
| 28 | Environmental Policy | 48 | 4.6K | 132 | 97 |
| 29 | Medicine | 94 | 4.0K | 1,803 | 3,172 |
| 30 | Environmental Law | 37 | 3.9K | 73 | 56 |
| 31 | Research | 99 | 3.9K | 1,054 | 1,415 |
| 32 | Plant cells | 36 | 3.8K | 184 | 234 |
| 33 | Animal ecology | 89 | 3.8K | 27 | 40 |
| 34 | Biogeochemistry | 72 | 3.7K | 19 | 38 |
| 35 | Environmental pollutants | 82 | 3.6K | 31 | 30 |
| 36 | pollutants | 80 | 3.4K | 19 | 28 |
| 37 | soil microbiology | 50 | 3.1K | 63 | 109 |
| 38 | Plant Ecology | 72 | 3.1K | 46 | 120 |
| 39 | biological evolution | 51 | 3.0K | 225 | 372 |
| 40 | Molecular ecology | 34 | 2.6K | 121 | 133 |
| 41 | sanitation | 43 | 2.5K | 185 | 387 |
| 42 | Physiology | 71 | 2.5K | 604 | 971 |
| 43 | Plants | 42 | 2.4K | 221 | 338 |
| 44 | Marine Biology | 64 | 2.4K | 124 | 145 |
| 45 | Environmental Chemistry | 55 | 2.3K | 48 | 346 |
| 46 | ecosystem | 42 | 2.3K | 30 | 69 |
| 47 | Anatomy | 67 | 2.2K | 115 | 373 |
| 48 | plant communities | 39 | 2.1K | 47 | 98 |
| 49 | Soil biology | 31 | 2.1K | 80 | 90 |
| 50 | Biotechnology | 30 | 1.9K | 2,494 | 2,421 |
| 51 | Cell Biology | 32 | 1.9K | 2,057 | 3,368 |
| 52 | Microbiology | 42 | 1.9K | 2,716 | 3,410 |
| 53 | Environmental Toxicology | 38 | 1.9K | 157 | 239 |
| 54 | Endocrinology | 34 | 1.9K | 1,135 | 1,405 |
| 55 | Molecular Genetics | 35 | 1.8K | 224 | 292 |
| 56 | Population Genetics | 35 | 1.8K | 139 | 202 |
| 57 | plant molecular biology | 35 | 1.7K | 231 | 452 |
| 58 | Social behavior | 44 | 1.7K | 26 | 98 |
| 59 | Biophysics | 48 | 1.7K | 1,873 | 2,079 |
| 59 | Biogeography | 28 | 1.7K | 75 | 126 |
| 61 | Wildlife conservation | 35 | 1.6K | 52 | 85 |
| 62 | Conservation Biology | 21 | 1.5K | 144 | 120 |
| 63 | human behavior | 21 | 1.5K | 670 | 805 |
| 64 | Behavior | 20 | 1.4K | 1,239 | 1,008 |
| 65 | Plant diseases | 26 | 1.4K | 307 | 183 |
| 66 | Psychophysiology | 22 | 1.4K | 1,350 | 1,289 |
| 67 | Cytology | 26 | 1.4K | 2,955 | 4,445 |
| 68 | Biomass Energy | 25 | 1.4K | 440 | 544 |
| 69 | Meteorology | 9 | 1.4K | 1,175 | 474 |
| 70 | Microbial Ecology | 32 | 1.4K | 428 | 893 |
| 71 | Bioengineering | 14 | 1.3K | 2,994 | 2,279 |
| 72 | Computational Biology | 8 | 1.3K | 2,543 | 921 |
| 73 | Analytical Chemistry | 23 | 1.3K | 2,405 | 1,645 |
| 74 | environmental exposure | 24 | 1.2K | 192 | 142 |
| 75 | Forest Ecology | 29 | 1.2K | 33 | 45 |
| 76 | Water pollution | 30 | 1.2K | 421 | 621 |
| 77 | sexual behavior | 16 | 1.1K | 99 | 72 |
| 78 | Biogeochemical cycles | 9 | 1.1K | 75 | 73 |
| 79 | Radiation effects | 21 | 1.1K | 14 | 19 |
| 80 | Forest Management | 23 | 1.1K | 46 | 52 |
| 81 | Biomass | 21 | 1.0K | 7 | 27 |
| 82 | Geophysics | 16 | 1.0K | 1,609 | 1,123 |
| 83 | Developmental Biology | 17 | 1.0K | 1,177 | 1,535 |
| 84 | Birds | 50 | 1.0K | 84 | 128 |
| 85 | Oceanography | 20 | 1.0K | 357 | 354 |
| 86 | polar regions | 35 | 991 | 9 | 14 |
| 87 | Primates | 31 | 978 | 65 | 88 |
| 88 | Genomics | 19 | 966 | 1,199 | 1,023 |
| 89 | Ornithology | 39 | 864 | 83 | 101 |
| 90 | disease vectors | 13 | 863 | 151 | 61 |
| 91 | Environmental Management | 22 | 801 | 462 | 923 |
| 92 | Comparative Physiology | 22 | 788 | 73 | 112 |
| 93 | locomotion | 11 | 734 | 118 | 84 |
| 93 | posture | 11 | 734 | 118 | 84 |
| 93 | gait | 11 | 734 | 118 | 84 |
| 93 | walking | 11 | 734 | 118 | 84 |
| 97 | Geography | 15 | 727 | 555 | 525 |
| 98 | Agricultural Ecology | 13 | 702 | 153 | 241 |
| 99 | Agriculture | 12 | 678 | 553 | 445 |
| 100 | Biomedical Engineering | 12 | 673 | 4,649 | 3,353 |
| 101 | Biomechanics | 4 | 626 | 1,498 | 475 |
| 102 | Water | 15 | 617 | 894 | 1,469 |
| 103 | Neurology | 14 | 602 | 8,129 | 9,829 |
| 104 | Molecular evolution | 19 | 601 | 320 | 689 |
| 105 | Morphology | 22 | 586 | 44 | 95 |
| 105 | Atmospheric Physics | 8 | 586 | 857 | 648 |
| 107 | Geochemistry | 11 | 565 | 827 | 759 |
| 107 | Spectrum analysis | 11 | 565 | 3,149 | 2,177 |
| 109 | Pharmacology | 22 | 561 | 4,056 | 5,846 |
| 109 | Ecophysiology | 19 | 561 | 1 | 12 |
| 111 | Signal Transduction | 9 | 547 | 596 | 889 |
| 112 | Sustainable Development | 4 | 541 | 1,190 | 475 |
| 113 | Atmospheric Chemistry | 7 | 536 | 558 | 516 |
| 114 | Environmental Microbiology | 10 | 517 | 456 | 794 |
| 115 | Zoonoses | 6 | 512 | 47 | 12 |
| 116 | Parasitology | 14 | 505 | 657 | 511 |
| 117 | atmospheric models | 11 | 493 | 154 | 198 |
| 118 | Climatology | 6 | 490 | 1,093 | 679 |
| 119 | Parasites | 13 | 486 | 342 | 303 |
| 120 | Reproductive toxicology | 3 | 482 | 393 | 98 |
| 121 | Parasitic Diseases | 12 | 478 | 490 | 515 |
| 122 | Fisheries | 3 | 475 | 1,276 | 323 |
| 123 | Neurophysiology | 8 | 468 | 4,623 | 4,547 |
| 124 | Geochemical Modeling | 3 | 463 | 142 | 55 |
| 124 | geological modeling | 3 | 463 | 286 | 61 |
| 126 | Food | 6 | 460 | 3,192 | 1,836 |
| 127 | Nutrition | 4 | 450 | 8,767 | 3,851 |
| 128 | sustainability | 3 | 440 | 556 | 332 |
| 129 | Genetics | 21 | 437 | 2,224 | 6,737 |
| 130 | mammals | 24 | 436 | 54 | 166 |
| 131 | biological monitoring | 8 | 427 | 86 | 73 |
| 132 | Economic Development | 2 | 426 | 1,673 | 550 |
| 133 | Virology | 7 | 415 | 3,749 | 6,252 |
| 134 | Diet | 3 | 410 | 3,798 | 2,016 |
| 135 | Food additives | 6 | 401 | 611 | 469 |
| 135 | food contamination | 6 | 401 | 366 | 88 |
| 137 | Biosensors | 3 | 384 | 2,181 | 1,230 |
| 137 | Bioelectronics | 3 | 384 | 1,689 | 1,037 |
| 139 | Entomology | 16 | 381 | 572 | 647 |
| 140 | Geomorphology | 9 | 378 | 467 | 507 |
| 141 | Plant genetic engineering | 7 | 375 | 381 | 432 |
| 142 | Ecological Genetics | 13 | 372 | 78 | 70 |
| 143 | environmental indicators | 10 | 369 | 183 | 293 |
| 144 | Marine Pollution | 12 | 367 | 159 | 373 |
| 145 | Mass Spectrometry | 7 | 342 | 686 | 524 |
| 146 | Virulence | 3 | 327 | 1,886 | 1,634 |
| 147 | biological invasions | 8 | 301 | 132 | 167 |
| 148 | Ecological Engineering | 8 | 296 | 87 | 173 |
| 149 | soil management | 4 | 291 | 230 | 174 |
| 149 | freshwater biology | 12 | 291 | 148 | 305 |
| 151 | animals | 18 | 287 | 112 | 266 |
| 152 | Algae | 12 | 285 | 203 | 360 |
| 153 | Plant Genetics | 4 | 276 | 571 | 627 |
| 154 | Landscape Ecology | 4 | 270 | 232 | 198 |
| 155 | Alzheimer's disease | 5 | 266 | 1,318 | 1,141 |
| 156 | Phylogeny | 7 | 265 | 366 | 557 |
| 157 | Diabetes mellitus | 1 | 263 | 9,132 | 3,545 |
| 157 | Diabetes | 1 | 263 | 9,672 | 3,702 |
| 159 | Soil Science | 11 | 254 | 614 | 1,138 |
| 160 | gene mapping | 7 | 247 | 1,808 | 3,028 |
| 161 | Technology | 3 | 241 | 7,420 | 3,611 |
| 162 | Bioinformatics | 2 | 236 | 6,231 | 3,079 |
| 163 | silicon | 5 | 235 | 122 | 49 |
| 164 | Epigenetics | 6 | 234 | 35 | 26 |
| 164 | Comparative Psychology | 2 | 234 | 122 | 78 |
| 164 | Epigenomics | 6 | 234 | 34 | 25 |
| 167 | Renewable Energy Sources | 4 | 231 | 3,074 | 4,146 |
| 167 | Chromosome mapping | 6 | 231 | 1,706 | 2,437 |
| 169 | Electrophoresis | 6 | 229 | 1,281 | 1,069 |
| 170 | tillage | 3 | 228 | 225 | 188 |
| 171 | Hydrology | 10 | 227 | 1,127 | 1,837 |
| 171 | Planets | 5 | 227 | 1,221 | 1,456 |
| 173 | Brain | 5 | 225 | 5,500 | 5,334 |
| 174 | Marine Ecology | 5 | 224 | 311 | 171 |
| 175 | Protozoa | 8 | 223 | 94 | 165 |
| 176 | Host-parasite interactions | 3 | 221 | 2,007 | 2,616 |
| 177 | Ecosystem management | 10 | 211 | 121 | 362 |
| 177 | Soil ecology | 7 | 211 | 243 | 458 |
| 179 | Oxidation-reduction | 3 | 210 | 1,068 | 1,495 |
| 180 | Immunity | 2 | 208 | 6,240 | 6,022 |
| 181 | Astrophysics | 3 | 207 | 3,947 | 2,731 |
| 181 | Geodesy | 3 | 207 | 404 | 138 |
| 183 | Geology | 9 | 199 | 1,667 | 2,269 |
| 183 | Wildlife management | 13 | 199 | 83 | 149 |
| 185 | Animal welfare | 2 | 195 | 210 | 81 |
| 186 | Restoration Ecology | 6 | 192 | 113 | 200 |
| 187 | heredity | 9 | 189 | 220 | 363 |
| 187 | Meteorites | 4 | 189 | 677 | 939 |
| 189 | Clinical Chemistry | 4 | 186 | 5,111 | 4,719 |
| 189 | Chromatography | 4 | 186 | 1,788 | 1,067 |
| 189 | Chromatographic analysis | 4 | 186 | 2,219 | 1,227 |
| 192 | Environmental risk assessment | 3 | 185 | 125 | 79 |
| 192 | environmental control | 3 | 185 | 55 | 53 |
| 194 | Neuropsychology | 5 | 184 | 3,304 | 3,415 |
| 195 | Ecohydrology | 9 | 183 | 22 | 71 |
| 196 | Microorganisms | 2 | 182 | 1,830 | 1,744 |
| 197 | Tropical Medicine | 6 | 181 | 946 | 827 |
| 198 | Chemical analysis | 5 | 179 | 874 | 979 |
| 198 | Japan | 5 | 179 | 1,472 | 863 |
| 200 | footwear | 6 | 177 | 6 | 3 |
| 201 | Cancer | 2 | 172 | 15,895 | 11,957 |
| 202 | Neurochemistry | 3 | 171 | 7,216 | 6,141 |
| 203 | Antioxidants | 2 | 169 | 1,264 | 1,321 |
| 203 | Cosmochemistry | 4 | 169 | 497 | 527 |
| 205 | Sports Medicine | 4 | 168 | 2,744 | 2,555 |
| 205 | Sports | 4 | 168 | 1,793 | 1,715 |
| 205 | body temperature | 4 | 168 | 226 | 162 |
| 208 | Plant tissue culture | 5 | 167 | 295 | 461 |
| 208 | Plant cell culture | 5 | 167 | 293 | 461 |
| 210 | Industrial Microbiology | 5 | 163 | 1,874 | 2,991 |
| 210 | Geobiology | 6 | 163 | 129 | 237 |
| 212 | Nanotechnology | 4 | 161 | 12,681 | 14,645 |
| 213 | Dementia | 2 | 155 | 2,164 | 1,393 |
| 214 | Aging | 2 | 154 | 7,464 | 4,981 |
| 215 | Biocompatible Materials | 2 | 153 | 14,886 | 12,345 |
| 216 | Organic Geochemistry | 2 | 152 | 317 | 269 |
| 217 | Aquatic ecology | 11 | 149 | 139 | 418 |
| 218 | Public Health | 8 | 148 | 6,044 | 10,909 |
| 218 | Plant hormones | 7 | 148 | 71 | 213 |
| 218 | Ethnology | 4 | 148 | 514 | 392 |
| 221 | Oncology | 1 | 146 | 11,732 | 6,833 |
| 222 | biofuels | 1 | 141 | 698 | 510 |
| 223 | Malaria | 4 | 136 | 577 | 620 |
| 223 | France | 2 | 136 | 59 | 19 |
| 225 | Microscopy | 3 | 131 | 1,648 | 1,281 |
| 226 | drug toxicity | 2 | 130 | 547 | 320 |
| 227 | Geriatrics | 1 | 129 | 11,256 | 5,263 |
| 228 | Infections | 2 | 128 | 1,836 | 1,797 |
| 228 | infection | 2 | 128 | 3,240 | 2,426 |
| 228 | Forest genetics | 3 | 128 | 110 | 84 |
| 231 | Medical Microbiology | 2 | 127 | 5,467 | 5,200 |
| 232 | Microbial Genetics | 1 | 125 | 698 | 296 |
| 232 | phytopathogenic bacteria | 1 | 125 | 451 | 277 |
| 234 | proteins | 5 | 123 | 2,802 | 4,092 |
| 235 | drug addiction | 1 | 120 | 3,129 | 1,711 |
| 235 | alcoholism | 1 | 120 | 4,518 | 2,241 |
| 237 | Surface Chemistry | 6 | 119 | 5,047 | 8,066 |
| 237 | Plant Biotechnology | 2 | 119 | 1,040 | 843 |
| 237 | Colloids | 6 | 119 | 5,341 | 8,811 |
| 240 | Genetic engineering | 4 | 118 | 3,084 | 5,280 |
| 241 | Hormones | 2 | 116 | 3,241 | 2,755 |
| 242 | soil conservation | 4 | 115 | 400 | 549 |
| 243 | Systems Biology | 3 | 113 | 3,139 | 3,077 |
| 244 | Pesticide residues | 2 | 109 | 21 | 34 |
| 245 | Neurobiology | 3 | 106 | 4,689 | 6,591 |
| 246 | energy conservation | 2 | 104 | 3,848 | 4,053 |
| 247 | Genetic Toxicology | 1 | 102 | 894 | 589 |
| 247 | mutation | 1 | 102 | 1,332 | 887 |
| 247 | Respiration | 4 | 102 | 1,914 | 3,203 |
| 250 | Proteomics | 7 | 99 | 525 | 2,548 |
| 251 | transgenic organisms | 2 | 97 | 173 | 229 |
| 251 | transgenic animals | 2 | 97 | 165 | 223 |
| 251 | soil pollution | 3 | 97 | 312 | 305 |
| 251 | Transgenic plants | 2 | 97 | 466 | 518 |
| 255 | Anthropology | 5 | 96 | 913 | 1,687 |
| 256 | Insects | 4 | 94 | 1,026 | 1,330 |
| 257 | Electron Microscopy | 3 | 93 | 250 | 309 |
| 258 | viruses | 6 | 90 | 1,536 | 4,107 |
| 258 | Scandinavia | 2 | 90 | 727 | 488 |
| 260 | Medical Laboratory Science | 3 | 87 | 3,236 | 5,367 |
| 260 | Evolutionary Genetics | 4 | 87 | 219 | 488 |
| 260 | Molecular Epidemiology | 4 | 87 | 219 | 488 |
| 260 | Europe | 8 | 87 | 2,150 | 5,264 |
| 264 | Wetland ecology | 7 | 85 | 57 | 290 |
| 265 | protein | 2 | 83 | 2,650 | 2,395 |
| 266 | herbicides | 2 | 82 | 130 | 121 |
| 267 | Animal breeding | 2 | 81 | 1,080 | 826 |
| 267 | movement | 1 | 81 | 500 | 304 |
| 269 | Risk assessment | 1 | 80 | 1,047 | 357 |
| 269 | ecological risk assessment | 1 | 80 | 433 | 185 |
| 269 | Health Risk Assessment | 1 | 80 | 781 | 277 |
| 272 | actuators | 1 | 79 | 6,401 | 4,639 |
| 272 | transducers | 1 | 79 | 6,401 | 4,639 |
| 274 | Biochemical Engineering | 2 | 76 | 9,426 | 12,381 |
| 274 | nucleic acids | 1 | 76 | 8,107 | 7,385 |
| 274 | Aquaculture | 6 | 76 | 744 | 1,639 |
| 277 | United States | 5 | 72 | 7,480 | 11,333 |
| 278 | Chemical Ecology | 2 | 71 | 662 | 885 |
| 278 | pheromones | 2 | 71 | 573 | 841 |
| 278 | natural disasters | 3 | 71 | 1,020 | 1,814 |
| 281 | animal diseases | 2 | 69 | 727 | 601 |
| 282 | Animal | 3 | 68 | 63 | 97 |
| 283 | Remote Sensing | 2 | 66 | 1,797 | 1,237 |
| 283 | Human evolution | 3 | 66 | 453 | 966 |
| 283 | Wetland conservation | 5 | 66 | 59 | 277 |
| 283 | Developing countries | 2 | 66 | 3,175 | 3,028 |
| 283 | Wetlands | 5 | 66 | 59 | 277 |
| 288 | Animal Biotechnology | 1 | 65 | 290 | 195 |
| 288 | food technology | 2 | 65 | 5,524 | 6,577 |
| 288 | Cognition | 4 | 65 | 2,048 | 3,758 |
| 291 | Phytochemistry | 2 | 63 | 259 | 362 |
| 291 | Phytoremediation | 2 | 63 | 259 | 362 |
| 291 | environmental remediation | 2 | 63 | 322 | 412 |
| 291 | Bioreactors | 2 | 63 | 259 | 362 |
| 295 | Environmental Geology | 3 | 61 | 1,640 | 2,558 |
| 296 | Psychology | 2 | 60 | 12,362 | 12,690 |
| 296 | Chemical Engineering | 3 | 60 | 10,071 | 14,321 |
| 296 | Leukemia | 1 | 60 | 3,263 | 3,216 |
| 296 | bats | 2 | 60 | 77 | 83 |
| 300 | Combinatorial chemistry | 1 | 58 | 2,411 | 2,823 |
| 300 | miniaturization | 2 | 58 | 4,686 | 7,795 |
| 302 | global environmental change | 3 | 57 | 487 | 1,643 |
| 303 | Analytical Biochemistry | 4 | 52 | 2,087 | 4,505 |
| 304 | Green Chemistry | 2 | 50 | 3,936 | 6,373 |
| 304 | Evolutionary Psychology | 1 | 50 | 271 | 223 |
| 306 | United Kingdom | 3 | 49 | 2,527 | 5,792 |
| 307 | Seaweed | 4 | 48 | 377 | 1,256 |
| 308 | Catalysis | 3 | 47 | 7,218 | 11,683 |
| 308 | Nanostructured Materials | 3 | 47 | 6,776 | 12,329 |
| 310 | Thrombosis | 1 | 46 | 4,521 | 5,399 |
| 310 | vascular diseases | 1 | 46 | 3,098 | 4,506 |
| 312 | environmental issues | 2 | 43 | 240 | 615 |
| 313 | Molecular cloning | 2 | 42 | 3,034 | 4,503 |
| 313 | Genetic recombination | 2 | 42 | 2,913 | 4,391 |
| 313 | Recombinant DNA | 2 | 42 | 3,477 | 5,002 |
| 313 | Population | 5 | 42 | 466 | 2,054 |
| 313 | transport vesicles | 1 | 42 | 544 | 1,293 |
| 318 | Oxidative stress | 1 | 41 | 2,659 | 4,500 |
| 318 | free radicals | 1 | 41 | 5,539 | 7,587 |
| 320 | Proteome | 3 | 40 | 2,103 | 6,241 |
| 321 | Fluid Mechanics | 1 | 39 | 3,461 | 2,910 |
| 321 | Land use | 2 | 39 | 1,255 | 2,355 |
| 321 | Socialization | 1 | 39 | 828 | 974 |
| 321 | role | 1 | 39 | 682 | 884 |
| 325 | Urban Policy | 4 | 38 | 375 | 1,543 |
| 325 | urban forestry | 4 | 38 | 56 | 413 |
| 325 | Insect biochemistry | 1 | 38 | 864 | 1,055 |
| 328 | Africa | 8 | 37 | 452 | 2,065 |
| 329 | Engineering Geology | 1 | 36 | 2,851 | 2,924 |
| 329 | California | 2 | 36 | 460 | 583 |
| 331 | Cybernetics | 1 | 35 | 4,388 | 4,832 |
| 331 | Artificial Intelligence | 1 | 35 | 12,994 | 12,077 |
| 331 | Agronomy | 2 | 35 | 529 | 1,089 |
| 331 | Sustainable agriculture | 2 | 35 | 607 | 1,226 |
| 331 | Breeding | 4 | 35 | 1,193 | 3,463 |
| 336 | Herpetology | 2 | 34 | 277 | 276 |
| 336 | Amphibians | 2 | 34 | 176 | 187 |
| 336 | Reptiles | 2 | 34 | 214 | 242 |
| 339 | Histology | 1 | 33 | 9,843 | 11,063 |
| 340 | Coastal zone management | 1 | 32 | 905 | 1,000 |
| 340 | Marine resources | 1 | 32 | 863 | 1,030 |
| 340 | Learning | 2 | 32 | 2,177 | 3,887 |
| 340 | Mites | 3 | 32 | 199 | 432 |
| 344 | Waste management | 4 | 31 | 1,022 | 2,983 |
| 344 | Water Purification | 4 | 31 | 845 | 2,348 |
| 344 | Water quality management | 4 | 31 | 1,466 | 4,231 |
| 344 | Materials | 1 | 31 | 23,487 | 26,963 |
| 344 | Optical materials | 1 | 31 | 9,011 | 11,793 |
| 349 | Membranes | 1 | 30 | 5,919 | 7,385 |
| 349 | Acarology | 2 | 30 | 231 | 410 |
| 349 | Ticks | 2 | 30 | 224 | 410 |
| 349 | Acari | 2 | 30 | 224 | 410 |
| 353 | Agricultural Chemistry | 3 | 29 | 4,068 | 10,397 |
| 353 | Nervous system | 2 | 29 | 8,159 | 15,295 |
| 355 | Photochemistry | 2 | 28 | 2,924 | 5,351 |
| 355 | Light | 2 | 28 | 1,609 | 3,927 |
| 357 | Immunology | 2 | 27 | 13,954 | 24,048 |
| 357 | bioclimatology | 3 | 27 | 689 | 2,386 |
| 357 | visualization | 4 | 27 | 2,122 | 3,213 |
| 357 | radioactive waste | 1 | 27 | 1,545 | 3,276 |
| 357 | industrial waste | 1 | 27 | 1,671 | 3,292 |
| 357 | Hazardous waste | 1 | 27 | 1,932 | 3,554 |
| 357 | Climate | 2 | 27 | 553 | 1,542 |
| 357 | weather | 2 | 27 | 513 | 1,440 |
| 357 | motor skills | 2 | 27 | 208 | 448 |
| 366 | Palynology | 1 | 26 | 338 | 327 |
| 366 | Radiation | 3 | 26 | 2,202 | 5,112 |
| 366 | Electrochemistry | 2 | 26 | 7,985 | 11,046 |
| 369 | Freshwater invertebrates | 1 | 25 | 374 | 604 |
| 369 | Medical innovations | 2 | 25 | 2,347 | 8,430 |
| 369 | biomimicry | 2 | 25 | 167 | 491 |
| 369 | rivers | 3 | 25 | 156 | 554 |
| 373 | Bioenergetics | 1 | 24 | 2,236 | 3,389 |
| 373 | Gene expression regulation | 2 | 24 | 2,217 | 5,382 |
| 373 | Molecular structure | 1 | 24 | 8,111 | 9,395 |
| 376 | Astronomy | 1 | 23 | 6,030 | 6,705 |
| 376 | Human genetics | 1 | 23 | 11,733 | 18,120 |
| 376 | Aquatic ecosystems | 3 | 23 | 63 | 207 |
| 379 | Mathematics | 3 | 22 | 11,356 | 15,852 |
| 379 | Hematology | 1 | 22 | 11,577 | 15,548 |
| 379 | Genetic variation | 1 | 22 | 196 | 289 |
| 379 | hazard mitigation | 1 | 22 | 1,704 | 2,509 |
| 379 | Stem cells | 1 | 22 | 7,618 | 10,974 |
| 384 | Plant breeding | 4 | 21 | 519 | 2,487 |
| 384 | plasma | 1 | 21 | 215 | 198 |
| 386 | Pathology | 2 | 20 | 8,323 | 17,760 |
| 386 | Public Policy | 1 | 20 | 4,633 | 6,307 |
| 386 | Metabolism | 1 | 20 | 15,382 | 21,905 |
| 386 | Systems Analysis | 1 | 20 | 2,153 | 2,645 |
| 386 | Fishery management | 2 | 20 | 740 | 1,689 |
| 386 | Ichthyology | 1 | 20 | 621 | 560 |
| 386 | Behaviorism | 1 | 20 | 136 | 132 |
| 386 | System analysis | 1 | 20 | 6,808 | 7,807 |
| 386 | Psychological adaptation | 1 | 20 | 99 | 82 |
| 386 | Bones | 1 | 20 | 2,531 | 4,696 |
| 386 | Fish | 1 | 20 | 444 | 463 |
| 397 | nanoscience | 1 | 19 | 12,412 | 17,845 |
| 397 | wetland management | 2 | 19 | 84 | 384 |
| 397 | eugenics | 3 | 19 | 545 | 2,298 |
| 400 | Paleontology | 3 | 18 | 1,402 | 3,215 |
| 400 | land degradation | 1 | 18 | 852 | 1,563 |
| 400 | degradation | 1 | 18 | 852 | 1,563 |
| 403 | Genetic regulation | 1 | 17 | 4,724 | 8,088 |
| 403 | forestry | 2 | 17 | 133 | 527 |
| 403 | amino acids | 1 | 17 | 1,491 | 2,843 |
| 406 | Materials Science | 1 | 16 | 18,729 | 24,691 |
| 406 | Electronics | 1 | 16 | 11,617 | 13,672 |
| 406 | Emerging infectious diseases | 1 | 16 | 638 | 1,383 |
| 406 | Reproduction | 1 | 16 | 9,187 | 12,833 |
| 406 | DNA polymerases | 1 | 16 | 1,328 | 3,127 |
| 411 | Paleoecology | 1 | 15 | 1,779 | 2,614 |
| 411 | Bryology | 1 | 15 | 254 | 285 |
| 411 | Serology | 1 | 15 | 959 | 1,701 |
| 411 | Plasma chemistry | 1 | 15 | 722 | 1,261 |
| 411 | Bacteriology | 1 | 15 | 6,042 | 9,807 |
| 411 | Plasma polymerization | 1 | 15 | 433 | 828 |
| 411 | bryophytes | 1 | 15 | 105 | 134 |
| 411 | Paleobotany | 1 | 15 | 260 | 523 |
| 411 | Vegetation dynamics | 1 | 15 | 246 | 507 |
| 420 | Primary health care | 1 | 14 | 5,599 | 8,190 |
| 420 | Arthropods | 1 | 14 | 297 | 559 |
| 420 | toxicity testing | 1 | 14 | 1,549 | 3,087 |
| 420 | Trace elements | 1 | 14 | 681 | 1,530 |
| 424 | Radiology | 1 | 13 | 3,398 | 4,944 |
| 424 | Social Psychology | 1 | 13 | 4,856 | 7,302 |
| 424 | emergency management | 1 | 13 | 966 | 2,034 |
| 424 | Radiobiology | 1 | 13 | 4,982 | 7,964 |
| 424 | Great Lakes | 1 | 13 | 352 | 606 |
| 424 | Sociobiology | 1 | 13 | 486 | 752 |
| 430 | Engineering | 1 | 12 | 17,534 | 23,096 |
| 430 | Developmental Toxicology | 1 | 12 | 84 | 220 |
| 430 | Veterinary Immunology | 1 | 12 | 727 | 1,286 |
| 430 | Biometrics | 1 | 12 | 3,320 | 4,513 |
| 430 | zoos | 2 | 12 | 18 | 99 |
| 430 | mutagens | 1 | 12 | 2,552 | 5,458 |
| 430 | teratogens | 1 | 12 | 84 | 220 |
| 430 | Mollusks | 2 | 12 | 151 | 407 |
| 438 | Environmental Ethics | 1 | 11 | 229 | 327 |
| 438 | Microcirculation | 2 | 11 | 605 | 2,633 |
| 438 | Genetic markers | 1 | 11 | 455 | 1,340 |
| 438 | Blood vessels | 2 | 11 | 417 | 1,940 |
| 438 | biochemical markers | 1 | 11 | 1,805 | 4,118 |
| 443 | Plant Morphology | 2 | 10 | 576 | 1,699 |
| 443 | Molecular Spectroscopy | 1 | 10 | 4,644 | 7,666 |
| 443 | health planning | 2 | 10 | 3,782 | 9,141 |
| 446 | Urology | 4 | 9 | 2,485 | 9,870 |
| 446 | Chemical Oceanography | 1 | 9 | 325 | 690 |
| 446 | reforestation | 1 | 9 | 114 | 334 |
| 446 | Groundwater | 1 | 9 | 1,221 | 2,481 |
| 446 | afforestation | 1 | 9 | 114 | 334 |
| 446 | DNA | 1 | 9 | 1,445 | 3,377 |
| 446 | bees | 1 | 9 | 577 | 1,159 |
| 453 | Geriatric Psychiatry | 1 | 8 | 2,643 | 4,933 |
| 453 | plankton | 1 | 8 | 227 | 555 |
| 453 | rehabilitation | 1 | 8 | 7,803 | 13,719 |
| 456 | Cell differentiation | 1 | 7 | 9,261 | 17,423 |
| 456 | DNA methylation | 1 | 7 | 806 | 2,461 |
| 456 | violence | 1 | 7 | 1,670 | 3,255 |
| 456 | Aggression | 1 | 7 | 921 | 2,016 |
| 460 | Epidemiology | 2 | 6 | 10,745 | 27,244 |
| 460 | Higher Education | 1 | 6 | 841 | 1,994 |
| 460 | Cytogenetics | 1 | 6 | 6,504 | 12,640 |
| 460 | Educational Technology | 1 | 6 | 2,920 | 6,306 |
| 460 | North America | 1 | 6 | 1,600 | 3,011 |
| 460 | Autism | 1 | 6 | 1,779 | 3,805 |
| 460 | Instructional systems | 1 | 6 | 140 | 485 |
| 467 | Radiation Protection | 1 | 5 | 815 | 1,511 |
| 467 | Synchrotron Radiation | 1 | 5 | 470 | 1,128 |
| 467 | Paleopathology | 1 | 5 | 660 | 1,148 |
| 467 | Agricultural systems | 1 | 5 | 423 | 1,143 |
| 471 | Immunotherapy | 1 | 4 | 9,003 | 17,381 |
| 471 | Signal Processing | 1 | 4 | 7,373 | 12,381 |
| 471 | X-ray spectroscopy | 1 | 4 | 187 | 488 |
| 471 | Immunogenetics | 1 | 4 | 1,853 | 4,317 |
| 471 | Sarcopenia | 1 | 4 | 983 | 3,078 |
| 471 | Computational Complexity | 1 | 4 | 2,085 | 3,725 |
| 471 | radar | 1 | 4 | 242 | 571 |
| 471 | Antigens | 1 | 4 | 2,294 | 5,235 |
| 471 | Sonar | 1 | 4 | 205 | 482 |
| 471 | Muscles | 1 | 4 | 2,695 | 6,485 |
| 471 | Navigation | 1 | 4 | 283 | 612 |
| 471 | Marine algae | 1 | 4 | 139 | 424 |
| 483 | Ethics | 1 | 3 | 2,079 | 4,752 |
| 483 | Medical Physics | 1 | 3 | 5,941 | 10,987 |
| 483 | Bioethics | 1 | 3 | 1,541 | 3,219 |
| 483 | Medical Ethics | 1 | 3 | 2,315 | 5,029 |
| 483 | Animal genetics | 1 | 3 | 1,162 | 2,641 |
| 483 | Visual Perception | 1 | 3 | 8,037 | 14,534 |
| 483 | forest policy | 2 | 3 | 178 | 1,083 |
| 483 | ozone | 2 | 3 | 101 | 629 |
| 483 | Memory | 1 | 3 | 8,782 | 15,879 |
| 483 | Attention | 1 | 3 | 8,236 | 14,977 |
| 483 | Perception | 1 | 3 | 8,660 | 15,475 |
| 494 | Agricultural Engineering | 1 | 2 | 652 | 1,663 |
| 494 | Health Policy | 1 | 2 | 8,473 | 17,521 |
| 494 | Psychoneuroimmunology | 1 | 2 | 2,190 | 5,412 |
| 494 | Neonatology | 1 | 2 | 1,459 | 3,718 |
| 494 | Operations Research | 1 | 2 | 4,556 | 7,649 |
| 494 | Agricultural Biotechnology | 1 | 2 | 160 | 724 |
| 494 | Solid State Chemistry | 1 | 2 | 5,680 | 10,050 |
| 494 | Neuroimmunology | 1 | 2 | 2,645 | 6,422 |
| 494 | Child Development | 1 | 2 | 6,007 | 12,253 |
| 494 | management | 1 | 2 | 5,712 | 11,844 |
| 494 | Germany | 1 | 2 | 714 | 2,024 |
| 494 | enzymes | 1 | 2 | 5,209 | 10,831 |
| 506 | Health Services Research | 1 | 1 | 5,460 | 12,125 |
| 506 | Manufacturing Processes | 1 | 1 | 5,343 | 9,700 |
| 506 | Production Engineering | 1 | 1 | 4,288 | 8,097 |
| 506 | Coral reef biology | 1 | 1 | 513 | 1,362 |
| 506 | Health insurance | 1 | 1 | 954 | 2,645 |
| 506 | air quality | 1 | 1 | 395 | 1,674 |
| 512 | Archaeology | 1 | 0 | 2,597 | 5,303 |
| 512 | Planetary Science | 1 | 0 | 693 | 1,557 |
| 512 | Greenhouse gases | 1 | 0 | 398 | 1,022 |
| 512 | Biological Systems | 1 | 0 | 1,321 | 4,163 |
| 512 | preventive medicine | 1 | 0 | 3,290 | 7,861 |
| 512 | Travel | 1 | 0 | 1,303 | 3,938 |
| 512 | Nanoparticles | 1 | 0 | 7,046 | 15,679 |
| 512 | wildlife diseases | 1 | 0 | 192 | 609 |
| 512 | Genes | 1 | 0 | 4,043 | 10,076 |