136.4K(top 1%)
papers
4.7M(top 1%)
citations
564(top 1%)
h-index
921(top 1%)
g-index
157.6K
all documents
5.1M
doc citations
26.4K
citing journals
Top Disciplines (by citations)
| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|---|---|---|---|---|
| 8 | Plant cells | 1,465 | 189.2K | 1 | 1 |
| 11 | Natural history | 1,911 | 143.7K | 14 | 97 |
| 12 | Pollution | 2,263 | 135.2K | 10 | 8 |
| 13 | Plants | 2,894 | 130.5K | 2 | 1 |
| 16 | Environment | 1,313 | 112.5K | 18 | 16 |
| 17 | plant molecular biology | 1,363 | 111.6K | 2 | 3 |
| 18 | Mycology | 4,233 | 110.3K | 1 | 1 |
| 19 | environmental pollution | 1,753 | 98.7K | 9 | 7 |
| 22 | plant communities | 1,540 | 87.4K | 1 | 1 |
| 24 | biological evolution | 802 | 77.4K | 6 | 6 |
| 27 | Fungi | 1,775 | 59.8K | 1 | 1 |
| 30 | Algae | 1,796 | 54.1K | 1 | 1 |
| 32 | Research | 1,594 | 52.9K | 123 | 162 |
| 33 | Evolution | 609 | 52.6K | 5 | 2 |
| 34 | Plant diseases | 2,198 | 51.9K | 2 | 4 |
| 40 | Seaweed | 1,027 | 37.1K | 1 | 1 |
| 49 | Phylogeny | 519 | 30.7K | 1 | 1 |
| 50 | Biodiversity | 633 | 30.3K | 4 | 3 |
| 51 | Molecular ecology | 400 | 29.8K | 2 | 4 |
| 54 | Radiation effects | 380 | 29.1K | 1 | 1 |
| 56 | ecosystem | 279 | 26.6K | 4 | 2 |
| 61 | Breeding | 494 | 22.9K | 6 | 6 |
| 63 | Environmental pollutants | 378 | 21.7K | 12 | 7 |
| 64 | Agriculture | 726 | 21.6K | 12 | 12 |
| 67 | pollutants | 334 | 20.5K | 8 | 4 |
| 72 | environmental exposure | 282 | 18.7K | 14 | 6 |
| 76 | Plant tissue culture | 564 | 17.4K | 1 | 1 |
| 76 | Plant cell culture | 564 | 17.4K | 1 | 1 |
| 81 | Technology | 393 | 15.0K | 98 | 71 |
| 86 | gene mapping | 234 | 13.3K | 44 | 73 |
| 87 | Plant hormones | 334 | 13.2K | 1 | 1 |
| 92 | Forest Management | 301 | 12.6K | 19 | 17 |
| 94 | Bioinformatics | 114 | 12.3K | 154 | 104 |
| 95 | Host-parasite interactions | 283 | 12.1K | 15 | 52 |
| 96 | Growth | 103 | 12.0K | 124 | 100 |
| 99 | cell membrane | 220 | 11.3K | 10 | 6 |
| 100 | biological invasions | 226 | 11.1K | 2 | 1 |
| 102 | Chromosome mapping | 217 | 11.0K | 32 | 41 |
| 105 | nucleic acids | 112 | 10.2K | 177 | 186 |
| 108 | China | 380 | 10.1K | 86 | 53 |
| 109 | Cell differentiation | 98 | 9.8K | 206 | 177 |
| 111 | Protozoa | 177 | 9.7K | 1 | 2 |
| 112 | Japan | 489 | 9.6K | 53 | 23 |
| 114 | Soil ecology | 190 | 9.4K | 6 | 6 |
| 115 | Phytotherapy | 216 | 9.4K | 4 | 1 |
| 116 | Food | 318 | 9.2K | 50 | 92 |
| 119 | Microorganisms | 127 | 8.6K | 43 | 44 |
| 121 | Traditional medicine | 153 | 8.5K | 1 | 1 |
| 123 | Colloids | 142 | 8.3K | 461 | 281 |
| 125 | Bacteria | 32 | 8.0K | 37 | 6 |
| 129 | ethnobiology | 123 | 8.0K | 1 | 1 |
| 131 | Ethnomedicine | 117 | 7.8K | 1 | 1 |
| 133 | pheromones | 133 | 7.5K | 9 | 4 |
| 136 | Plant breeding | 280 | 7.0K | 4 | 6 |
| 137 | Entomology | 346 | 7.0K | 67 | 67 |
| 144 | Chromosomes | 206 | 6.7K | 7 | 13 |
| 145 | Parasitology | 239 | 6.6K | 80 | 88 |
| 152 | Australia | 268 | 6.3K | 56 | 50 |
| 153 | Microscopy | 335 | 6.2K | 6 | 30 |
| 156 | India | 465 | 6.0K | 14 | 3 |
| 160 | Immunity | 47 | 5.8K | 546 | 450 |
| 163 | freshwater biology | 211 | 5.4K | 5 | 23 |
| 164 | Africa | 368 | 5.3K | 21 | 14 |
| 165 | Light | 156 | 5.3K | 11 | 96 |
| 166 | natural products | 350 | 5.3K | 13 | 51 |
| 168 | genome | 103 | 5.3K | 121 | 253 |
| 170 | Membranes | 115 | 5.0K | 145 | 166 |
| 171 | Soil fertility | 94 | 5.0K | 4 | 5 |
| 172 | mycoses | 200 | 5.0K | 3 | 59 |
| 174 | Virulence | 45 | 4.9K | 217 | 139 |
| 175 | Surface properties | 47 | 4.9K | 77 | 12 |
| 178 | phytopathogenic bacteria | 83 | 4.8K | 5 | 7 |
| 179 | nanoscience | 136 | 4.7K | 275 | 429 |
| 187 | Recombinant DNA | 108 | 4.2K | 50 | 56 |
| 191 | Classification | 49 | 4.1K | 7 | 11 |
| 195 | Earth Sciences | 129 | 3.8K | 327 | 437 |
| 196 | United Kingdom | 106 | 3.8K | 125 | 189 |
| 198 | biological factors | 191 | 3.8K | 25 | 86 |
| 199 | mosses | 261 | 3.8K | 1 | 1 |
| 199 | liverworts | 261 | 3.8K | 1 | 1 |
| 201 | Toxins | 62 | 3.7K | 47 | 21 |
| 202 | Gene expression regulation | 29 | 3.7K | 203 | 139 |
| 204 | Genetic regulation | 27 | 3.6K | 307 | 187 |
| 205 | venom | 52 | 3.6K | 57 | 18 |
| 206 | Aquatic ecology | 115 | 3.6K | 17 | 14 |
| 207 | viruses | 65 | 3.6K | 294 | 318 |
| 209 | Wetland ecology | 96 | 3.5K | 7 | 5 |
| 213 | Molecular structure | 166 | 3.4K | 77 | 268 |
| 215 | Aquaculture | 86 | 3.4K | 167 | 127 |
| 217 | viral genetics | 12 | 3.4K | 176 | 125 |
| 223 | Pesticides | 133 | 3.2K | 6 | 8 |
| 225 | Transgenic plants | 71 | 3.1K | 12 | 11 |
| 226 | Nanostructures | 53 | 3.1K | 285 | 271 |
| 229 | coal | 80 | 3.0K | 133 | 149 |
| 230 | Parasitic Diseases | 109 | 3.0K | 144 | 234 |
| 231 | eugenics | 91 | 2.9K | 14 | 12 |
| 235 | polar regions | 123 | 2.7K | 22 | 28 |
| 236 | Reproduction | 106 | 2.7K | 285 | 365 |
| 237 | animals | 183 | 2.7K | 23 | 44 |
| 238 | Industry | 29 | 2.7K | 4 | 3 |
| 240 | Genes | 76 | 2.6K | 66 | 63 |
| 241 | Estuaries | 47 | 2.6K | 17 | 20 |
| 243 | cell physiology | 38 | 2.6K | 375 | 334 |
| 245 | Insects | 111 | 2.5K | 71 | 113 |
| 248 | Parasites | 91 | 2.4K | 103 | 132 |
| 250 | Wildlife management | 152 | 2.4K | 13 | 24 |
| 253 | Planets | 24 | 2.4K | 748 | 501 |
| 255 | Spectrum analysis | 87 | 2.4K | 965 | 1154 |
| 256 | Materials | 62 | 2.3K | 1872 | 1689 |
| 257 | enzymes | 52 | 2.3K | 190 | 161 |
| 260 | data collection | 34 | 2.3K | 98 | 106 |
| 261 | Biomass | 52 | 2.3K | 22 | 40 |
| 262 | heredity | 131 | 2.2K | 7 | 35 |
| 263 | herbicides | 117 | 2.2K | 4 | 9 |
| 265 | Phylogenetics | 113 | 2.2K | 2 | 1 |
| 266 | Climate | 63 | 2.2K | 14 | 49 |
| 268 | plant viruses | 78 | 2.1K | 7 | 8 |
| 269 | Population | 40 | 2.1K | 157 | 73 |
| 273 | weather | 61 | 2.1K | 6 | 14 |
| 276 | Wetland conservation | 53 | 2.0K | 11 | 14 |
| 276 | Wetlands | 53 | 2.0K | 11 | 14 |
| 278 | DNA polymerases | 7 | 2.0K | 314 | 158 |
| 279 | Birds | 91 | 2.0K | 113 | 108 |
| 280 | Visual Perception | 68 | 2.0K | 305 | 320 |
| 280 | Memory | 68 | 2.0K | 357 | 409 |
| 280 | Attention | 68 | 2.0K | 314 | 328 |
| 280 | Perception | 68 | 2.0K | 356 | 389 |
| 284 | polymerization | 83 | 2.0K | 896 | 961 |
| 287 | Mountains | 133 | 1.9K | 5 | 5 |
| 288 | Hazardous waste | 11 | 1.9K | 379 | 71 |
| 290 | Algal blooms | 32 | 1.9K | 26 | 43 |
| 290 | Cyanobacteria | 32 | 1.9K | 26 | 43 |
| 290 | microalgae | 32 | 1.9K | 26 | 43 |
| 294 | industrial waste | 12 | 1.8K | 287 | 72 |
| 295 | radioactive waste | 9 | 1.8K | 383 | 72 |
| 296 | land degradation | 60 | 1.8K | 10 | 12 |
| 296 | degradation | 60 | 1.8K | 10 | 12 |
| 299 | Egypt | 158 | 1.8K | 8 | 21 |
| 300 | scientific societies | 67 | 1.7K | 44 | 78 |
| 302 | Enzyme | 25 | 1.7K | 52 | 26 |
| 304 | Nitric oxide | 26 | 1.7K | 25 | 8 |
| 305 | Bacterial infections | 13 | 1.7K | 383 | 242 |
| 306 | proteins | 63 | 1.7K | 336 | 455 |
| 307 | plant oils | 85 | 1.7K | 7 | 4 |
| 310 | Bioelectronics | 15 | 1.6K | 429 | 251 |
| 313 | food handling | 30 | 1.6K | 115 | 65 |
| 314 | Invertebrates | 58 | 1.6K | 33 | 41 |
| 315 | Molecular Spectroscopy | 36 | 1.6K | 365 | 168 |
| 319 | wetland management | 43 | 1.5K | 2 | 1 |
| 322 | bryophytes | 130 | 1.5K | 1 | 2 |
| 325 | global environmental change | 35 | 1.4K | 110 | 186 |
| 329 | Bioorganic chemistry | 40 | 1.4K | 836 | 828 |
| 330 | Meteorites | 15 | 1.4K | 541 | 412 |
| 331 | Lipids | 20 | 1.3K | 467 | 330 |
| 332 | hydrocolloids | 13 | 1.3K | 260 | 178 |
| 333 | Paleobotany | 51 | 1.3K | 5 | 7 |
| 334 | Ornithology | 65 | 1.3K | 103 | 118 |
| 335 | Vegetation | 149 | 1.3K | 2 | 4 |
| 336 | Vegetation dynamics | 48 | 1.3K | 3 | 7 |
| 337 | free radicals | 17 | 1.3K | 676 | 485 |
| 341 | forestry | 38 | 1.2K | 29 | 26 |
| 342 | Photobiology | 29 | 1.2K | 227 | 158 |
| 343 | water reuse | 17 | 1.2K | 35 | 16 |
| 344 | tillage | 11 | 1.2K | 162 | 74 |
| 346 | energy resources | 4 | 1.2K | 1339 | 487 |
| 349 | Environmental Geochemistry | 48 | 1.2K | 14 | 18 |
| 351 | Proteome | 18 | 1.1K | 453 | 357 |
| 351 | baking | 22 | 1.1K | 37 | 23 |
| 353 | Ultrasonics | 28 | 1.1K | 186 | 162 |
| 353 | Sonochemistry | 28 | 1.1K | 54 | 85 |
| 355 | Minerals | 45 | 1.1K | 40 | 56 |
| 356 | Cell death | 7 | 1.1K | 1022 | 537 |
| 357 | Tropical Medicine | 51 | 1.1K | 260 | 297 |
| 358 | Chromatographic analysis | 52 | 1.1K | 288 | 283 |
| 362 | Diet | 19 | 1.1K | 969 | 821 |
| 364 | Fisheries | 54 | 1.1K | 296 | 442 |
| 365 | United States | 117 | 1.0K | 735 | 1550 |
| 366 | Edible plants | 28 | 1.0K | 8 | 12 |
| 367 | Cosmochemistry | 25 | 1.0K | 216 | 201 |
| 368 | Sites | 21 | 1.0K | 145 | 147 |
| 370 | Korea | 58 | 1.0K | 28 | 18 |
| 371 | Microbial Metabolism | 19 | 1.0K | 10 | 7 |
| 374 | afforestation | 34 | 959 | 13 | 12 |
| 376 | bees | 62 | 926 | 18 | 73 |
| 378 | cell movement | 21 | 916 | 30 | 37 |
| 379 | Taste | 34 | 912 | 18 | 20 |
| 379 | smell | 34 | 912 | 18 | 20 |
| 382 | flavor | 33 | 896 | 13 | 13 |
| 383 | food industry | 40 | 893 | 33 | 23 |
| 384 | body temperature | 18 | 892 | 62 | 18 |
| 385 | mammals | 41 | 888 | 157 | 197 |
| 386 | Forest genetics | 40 | 886 | 17 | 20 |
| 387 | Cancer | 26 | 874 | 1744 | 1938 |
| 391 | Marine algae | 66 | 859 | 1 | 2 |
| 392 | water supply | 21 | 850 | 325 | 358 |
| 393 | disease vectors | 36 | 833 | 146 | 217 |
| 395 | miniaturization | 15 | 824 | 905 | 903 |
| 396 | toxicity testing | 23 | 822 | 133 | 129 |
| 398 | biological agents | 113 | 803 | 8 | 2 |
| 399 | drugs | 69 | 795 | 274 | 687 |
| 400 | infection | 11 | 785 | 1061 | 714 |
| 402 | plankton | 23 | 771 | 16 | 14 |
| 404 | Teaching | 23 | 768 | 534 | 374 |
| 408 | Ethnology | 19 | 687 | 537 | 236 |
| 410 | Water Microbiology | 19 | 682 | 49 | 72 |
| 413 | silicon | 44 | 670 | 14 | 15 |
| 414 | Fouling | 15 | 664 | 40 | 43 |
| 416 | Organometallic compounds | 49 | 660 | 170 | 388 |
| 418 | Mites | 35 | 647 | 49 | 46 |
| 423 | herbs | 82 | 618 | 1 | 1 |
| 427 | Geobiology | 21 | 605 | 113 | 129 |
| 429 | Developing countries | 26 | 597 | 713 | 800 |
| 431 | Asia | 50 | 593 | 421 | 580 |
| 434 | amino acids | 10 | 579 | 215 | 119 |
| 435 | Mollusks | 27 | 577 | 15 | 12 |
| 436 | Flow cytometry | 18 | 573 | 73 | 91 |
| 439 | Acarology | 25 | 563 | 37 | 42 |
| 439 | Ticks | 25 | 563 | 46 | 43 |
| 439 | Acari | 25 | 563 | 37 | 42 |
| 446 | Allergy | 16 | 548 | 668 | 1029 |
| 448 | Primates | 15 | 543 | 318 | 244 |
| 449 | energy development | 22 | 539 | 142 | 434 |
| 452 | crops | 35 | 528 | 11 | 8 |
| 453 | Health Risk Assessment | 15 | 526 | 81 | 33 |
| 455 | California | 12 | 524 | 212 | 122 |
| 457 | antibiotics | 14 | 522 | 149 | 113 |
| 458 | aromatic plants | 75 | 519 | 3 | 8 |
| 459 | protein | 27 | 518 | 356 | 605 |
| 460 | plasmids | 14 | 513 | 23 | 35 |
| 460 | Insect biochemistry | 13 | 513 | 176 | 182 |
| 464 | urban forestry | 23 | 494 | 20 | 43 |
| 467 | Diagnostic microbiology | 15 | 484 | 682 | 1128 |
| 468 | Aging | 14 | 482 | 1748 | 1505 |
| 471 | Europe | 30 | 474 | 1163 | 1350 |
| 473 | Aquatic ecosystems | 32 | 471 | 13 | 15 |
| 476 | starch | 17 | 466 | 93 | 74 |
| 477 | Plastics | 22 | 452 | 568 | 571 |
| 478 | Fertilizers | 21 | 448 | 89 | 125 |
| 480 | Genetic variation | 22 | 441 | 10 | 14 |
| 482 | actuators | 13 | 437 | 1191 | 1222 |
| 482 | transducers | 13 | 437 | 1191 | 1222 |
| 484 | plant health | 18 | 436 | 4 | 4 |
| 486 | Middle East | 20 | 434 | 238 | 146 |
| 487 | carcinogens | 17 | 422 | 368 | 608 |
| 488 | Biometrics | 15 | 420 | 550 | 504 |
| 491 | Great Lakes | 14 | 415 | 98 | 98 |
| 493 | Social behavior | 24 | 404 | 350 | 626 |
| 494 | Groundwater | 8 | 398 | 445 | 232 |
| 495 | Marine resources | 13 | 389 | 233 | 230 |
| 496 | DNA | 16 | 386 | 129 | 151 |
| 499 | Extreme environments | 13 | 370 | 41 | 85 |
| 500 | Water chemistry | 15 | 367 | 38 | 49 |
| 501 | Malaria | 9 | 364 | 460 | 364 |
| 503 | brewing | 11 | 357 | 105 | 59 |
| 505 | Developmental Immunology | 5 | 353 | 717 | 361 |
| 506 | sustainability | 17 | 350 | 192 | 541 |
| 508 | Cellulose | 12 | 344 | 212 | 272 |
| 512 | Pacific Islands | 32 | 336 | 28 | 40 |
| 514 | Freeze-Drying | 19 | 334 | 104 | 120 |
| 514 | Hypothermia | 19 | 334 | 104 | 120 |
| 514 | Freeze Drying | 19 | 334 | 104 | 120 |
| 517 | histological techniques | 9 | 329 | 429 | 541 |
| 519 | Electrophysiology | 9 | 323 | 814 | 524 |
| 520 | biomedicine | 12 | 322 | 325 | 335 |
| 521 | sustainable forestry | 31 | 320 | 6 | 11 |
| 524 | mutagens | 6 | 315 | 709 | 707 |
| 525 | wood | 26 | 311 | 101 | 158 |
| 526 | Continental shelf | 4 | 310 | 398 | 237 |
| 527 | Inflammation | 11 | 309 | 693 | 918 |
| 528 | Diabetes | 6 | 299 | 2109 | 2064 |
| 529 | Antarctica | 27 | 290 | 100 | 158 |
| 531 | foods | 25 | 289 | 15 | 36 |
| 531 | Agricultural systems | 15 | 289 | 104 | 236 |
| 535 | Scandinavia | 26 | 287 | 100 | 239 |
| 536 | environmental issues | 18 | 286 | 68 | 219 |
| 539 | teratogenic agents | 12 | 278 | 39 | 27 |
| 541 | Behavior | 4 | 264 | 3570 | 2807 |
| 542 | Permafrost | 3 | 260 | 143 | 86 |
| 542 | cytokines | 11 | 260 | 709 | 1006 |
| 542 | Frozen ground | 3 | 260 | 146 | 86 |
| 546 | RNA | 8 | 259 | 329 | 456 |
| 548 | Soil | 8 | 258 | 33 | 59 |
| 551 | city planning | 17 | 257 | 653 | 854 |
| 552 | Safety management | 23 | 255 | 52 | 139 |
| 556 | drug toxicity | 8 | 249 | 168 | 211 |
| 557 | Animal genetics | 6 | 247 | 466 | 358 |
| 561 | Yeast | 9 | 236 | 217 | 311 |
| 563 | particles | 6 | 233 | 708 | 466 |
| 564 | Metals | 11 | 231 | 1406 | 1551 |
| 565 | Iran | 12 | 227 | 54 | 9 |
| 566 | forest policy | 25 | 225 | 75 | 184 |
| 572 | Optical materials | 11 | 219 | 1712 | 2212 |
| 572 | Brain | 5 | 219 | 2646 | 2379 |
| 575 | human behavior | 7 | 217 | 1933 | 2529 |
| 576 | Medical innovations | 3 | 215 | 1364 | 1594 |
| 576 | drug development | 3 | 215 | 1376 | 1471 |
| 576 | immunoassay | 8 | 215 | 67 | 33 |
| 580 | peptides | 14 | 213 | 323 | 399 |
| 582 | Spain | 16 | 211 | 251 | 100 |
| 583 | chemical spills | 2 | 208 | 22 | 12 |
| 587 | DNS | 10 | 204 | 209 | 331 |
| 588 | Infertility | 3 | 203 | 1411 | 1062 |
| 588 | Animal | 12 | 203 | 33 | 52 |
| 588 | fertility | 3 | 203 | 1512 | 1119 |
| 592 | atmosphere | 5 | 201 | 709 | 600 |
| 594 | Heterocyclic compounds | 13 | 198 | 469 | 416 |
| 595 | Methodology | 12 | 197 | 115 | 140 |
| 595 | Methods | 12 | 197 | 24 | 21 |
| 595 | Grasslands | 30 | 197 | 6 | 18 |
| 598 | Mycotoxins | 19 | 195 | 24 | 77 |
| 600 | Nematodes | 11 | 193 | 17 | 7 |
| 600 | Culture techniques | 13 | 193 | 105 | 194 |
| 604 | health planning | 8 | 192 | 1552 | 1394 |
| 608 | Sedimentary rocks | 6 | 185 | 444 | 462 |
| 613 | Erosion | 2 | 179 | 118 | 36 |
| 613 | Recycling | 6 | 179 | 376 | 794 |
| 618 | Oxidation-reduction | 2 | 177 | 1229 | 1093 |
| 622 | glycoproteins | 7 | 172 | 305 | 467 |
| 622 | Glycoconjugates | 7 | 172 | 305 | 467 |
| 622 | glycolipids | 7 | 172 | 305 | 467 |
| 626 | Granular materials | 1 | 171 | 1207 | 371 |
| 628 | Holistic Health | 8 | 170 | 186 | 231 |
| 629 | cosmetics | 13 | 169 | 31 | 117 |
| 631 | Radioisotopes | 11 | 166 | 689 | 722 |
| 633 | Housing | 1 | 164 | 956 | 357 |
| 637 | Carbon | 4 | 162 | 1412 | 1497 |
| 638 | Chemical structure | 10 | 161 | 182 | 167 |
| 638 | rivers | 8 | 161 | 145 | 210 |
| 641 | Reservoirs | 14 | 159 | 39 | 71 |
| 641 | cities | 3 | 159 | 9 | 6 |
| 644 | Ceramic materials | 9 | 158 | 824 | 1014 |
| 646 | biological monitoring | 10 | 157 | 186 | 412 |
| 647 | Chemical analysis | 4 | 156 | 1303 | 1040 |
| 648 | Gastrointestinal diseases | 1 | 154 | 1619 | 483 |
| 648 | Liver diseases | 1 | 154 | 2781 | 1971 |
| 650 | exobiology | 7 | 153 | 215 | 379 |
| 654 | animal diseases | 9 | 147 | 261 | 366 |
| 656 | Psychophysiology | 6 | 146 | 2625 | 3050 |
| 659 | food consumption | 3 | 141 | 69 | 70 |
| 659 | Statistical physics | 5 | 141 | 3423 | 2928 |
| 659 | textile fibers | 5 | 141 | 399 | 189 |
| 663 | pigments | 2 | 140 | 1163 | 657 |
| 667 | North America | 17 | 136 | 312 | 663 |
| 669 | Microstructure | 2 | 133 | 1309 | 469 |
| 672 | Arthropods | 9 | 131 | 75 | 96 |
| 675 | livestock | 8 | 129 | 368 | 321 |
| 680 | bats | 7 | 125 | 49 | 56 |
| 681 | System analysis | 9 | 124 | 1675 | 2053 |
| 683 | Ireland | 7 | 121 | 100 | 44 |
| 685 | Steroids | 10 | 120 | 615 | 1090 |
| 688 | Foodborne diseases | 7 | 119 | 148 | 245 |
| 688 | Liquid chromatography | 15 | 119 | 143 | 252 |
| 690 | Mitochondria | 6 | 118 | 196 | 347 |
| 690 | Timber | 10 | 118 | 23 | 15 |
| 694 | Fish | 6 | 116 | 252 | 229 |
| 694 | Vaccines | 7 | 116 | 1553 | 2153 |
| 696 | drug evaluation | 11 | 115 | 706 | 1359 |
| 698 | Watershed management | 5 | 112 | 116 | 92 |
| 699 | Serbia | 28 | 111 | 19 | 22 |
| 699 | visualization | 25 | 111 | 477 | 743 |
| 701 | Southeast Asia | 17 | 109 | 96 | 169 |
| 702 | Germany | 5 | 105 | 579 | 251 |
| 702 | Helminths | 16 | 105 | 20 | 41 |
| 702 | Maps | 3 | 105 | 166 | 87 |
| 707 | Eastern Europe | 12 | 104 | 389 | 448 |
| 709 | Societies | 16 | 102 | 46 | 79 |
| 709 | pharmaceutical industry | 5 | 102 | 491 | 499 |
| 713 | cell interaction | 6 | 101 | 991 | 1599 |
| 717 | irrigation | 7 | 99 | 207 | 274 |
| 717 | Carbohydrates | 5 | 99 | 378 | 608 |
| 721 | Plant diversity | 29 | 97 | 2 | 6 |
| 722 | Luminescence | 24 | 95 | 321 | 1175 |
| 722 | gametes | 8 | 95 | 27 | 91 |
| 722 | Zoonoses | 7 | 95 | 162 | 393 |
| 729 | Scotland | 14 | 93 | 38 | 58 |
| 730 | Oligosaccharide | 3 | 92 | 369 | 504 |
| 730 | Fluorescence | 22 | 92 | 35 | 335 |
| 735 | biochemical markers | 5 | 88 | 735 | 898 |
| 736 | lasers | 6 | 87 | 1639 | 1618 |
| 738 | Crystallography | 10 | 86 | 1140 | 1202 |
| 738 | Textile industry | 3 | 86 | 697 | 369 |
| 741 | Lipid | 4 | 83 | 385 | 710 |
| 743 | DNA methylation | 2 | 82 | 466 | 533 |
| 743 | Metallography | 1 | 82 | 1591 | 937 |
| 743 | Genetic markers | 4 | 82 | 201 | 262 |
| 746 | cell adhesion molecules | 4 | 81 | 520 | 832 |
| 746 | Carbon dioxide | 2 | 81 | 101 | 94 |
| 746 | Trace elements | 6 | 81 | 135 | 453 |
| 746 | Cell communication | 4 | 81 | 830 | 1233 |
| 751 | Hallucinogens | 2 | 80 | 287 | 233 |
| 751 | Oligosaccharides | 4 | 80 | 218 | 344 |
| 751 | drug abuse | 2 | 80 | 1036 | 766 |
| 754 | Reproductive toxicology | 3 | 79 | 625 | 676 |
| 754 | Magnetic Resonance Spectroscopy | 6 | 79 | 1106 | 1294 |
| 754 | nuclear magnetic resonance spectroscopy | 6 | 79 | 642 | 767 |
| 754 | NMR | 6 | 79 | 414 | 469 |
| 754 | magnetic resonance | 6 | 79 | 420 | 497 |
| 761 | Food inspection | 4 | 78 | 20 | 30 |
| 761 | X-ray crystallography | 7 | 78 | 458 | 567 |
| 761 | Croatia | 29 | 78 | 22 | 16 |
| 761 | food quality | 4 | 78 | 20 | 30 |
| 766 | Sexuality | 1 | 77 | 691 | 271 |
| 766 | homosexuality | 1 | 77 | 875 | 469 |
| 766 | Cell surface receptors | 4 | 77 | 89 | 93 |
| 773 | Hormones | 4 | 75 | 1489 | 1966 |
| 773 | Convergence | 2 | 75 | 70 | 111 |
| 776 | circadian rhythm | 5 | 73 | 305 | 497 |
| 776 | Microbiota | 6 | 73 | 12 | 43 |
| 776 | biological rhythms | 5 | 73 | 286 | 488 |
| 776 | Chemical industry | 12 | 73 | 698 | 1304 |
| 782 | Fish diseases | 4 | 72 | 108 | 164 |
| 782 | bioluminescence | 22 | 72 | 31 | 259 |
| 782 | Aquatic animals | 4 | 72 | 181 | 223 |
| 782 | Drug discovery | 7 | 72 | 123 | 386 |
| 787 | biocatalysis | 1 | 71 | 381 | 559 |
| 787 | Homogeneous catalysis | 1 | 71 | 381 | 559 |
| 787 | Heterogeneous catalysis | 1 | 71 | 381 | 559 |
| 790 | Reptiles | 10 | 70 | 141 | 247 |
| 793 | landscapes | 6 | 69 | 94 | 204 |
| 797 | synthesis | 9 | 67 | 630 | 961 |
| 800 | Ferroelectricity | 2 | 65 | 1304 | 707 |
| 800 | geological modeling | 4 | 65 | 474 | 592 |
| 806 | Atomic spectroscopy | 1 | 63 | 2079 | 1379 |
| 806 | Structure-activity relationship | 10 | 63 | 132 | 526 |
| 808 | Blood vessels | 1 | 62 | 890 | 604 |
| 811 | Cell survival | 3 | 60 | 231 | 425 |
| 811 | Library Science | 3 | 60 | 1552 | 883 |
| 811 | molecular chaperones | 3 | 60 | 284 | 426 |
| 814 | Mitochondrial DNA | 7 | 59 | 82 | 96 |
| 818 | vitamin C | 2 | 58 | 628 | 813 |
| 818 | vitamin E | 2 | 58 | 628 | 813 |
| 822 | Information Science | 9 | 57 | 1674 | 3363 |
| 828 | Product life cycle | 1 | 56 | 702 | 568 |
| 828 | green products | 1 | 56 | 615 | 552 |
| 831 | Transport | 5 | 55 | 537 | 1064 |
| 831 | Sea | 5 | 55 | 475 | 893 |
| 831 | Fishery resources | 5 | 55 | 555 | 980 |
| 831 | Respiration | 3 | 55 | 1943 | 2448 |
| 831 | Soviet Union | 6 | 55 | 531 | 499 |
| 831 | radioactive dating | 1 | 55 | 8 | 4 |
| 841 | Synthetic biology | 2 | 53 | 478 | 522 |
| 841 | Paleopathology | 1 | 53 | 657 | 343 |
| 841 | Amphibians | 9 | 53 | 126 | 233 |
| 841 | cycles | 3 | 53 | 166 | 101 |
| 846 | Infrared spectroscopy | 1 | 52 | 814 | 530 |
| 846 | Disease | 2 | 52 | 565 | 1152 |
| 848 | Food Security | 3 | 51 | 190 | 391 |
| 848 | Pakistan | 23 | 51 | 91 | 220 |
| 852 | solar cells | 1 | 50 | 1730 | 1679 |
| 854 | Drying | 4 | 49 | 351 | 559 |
| 856 | Asymmetric synthesis | 2 | 48 | 181 | 94 |
| 856 | Probiotics | 4 | 48 | 130 | 344 |
| 856 | Nervous system | 1 | 48 | 4619 | 4227 |
| 861 | lakes | 8 | 47 | 19 | 85 |
| 864 | aquatic insects | 6 | 46 | 42 | 50 |
| 866 | Environmental risk assessment | 1 | 45 | 996 | 673 |
| 869 | gene therapy | 1 | 44 | 2374 | 2284 |
| 869 | fishing industry | 2 | 44 | 285 | 260 |
| 869 | Genetic therapy | 1 | 44 | 2533 | 2474 |
| 872 | carbon monoxide | 1 | 43 | 737 | 775 |
| 877 | Multimedia Systems | 4 | 41 | 1730 | 2019 |
| 878 | Emulsions | 2 | 40 | 551 | 451 |
| 878 | weather forecasting | 1 | 40 | 447 | 448 |
| 878 | Catalysts | 6 | 40 | 500 | 1042 |
| 881 | indoor air pollution | 3 | 39 | 458 | 803 |
| 881 | Ventilation | 3 | 39 | 619 | 926 |
| 881 | Sick building syndrome | 3 | 39 | 458 | 803 |
| 885 | wildlife diseases | 3 | 38 | 165 | 189 |
| 888 | Wine | 1 | 36 | 120 | 72 |
| 890 | air quality | 3 | 35 | 236 | 509 |
| 890 | shellfish | 3 | 35 | 208 | 308 |
| 890 | Informatics | 2 | 35 | 1300 | 1548 |
| 895 | optical instruments | 3 | 34 | 502 | 682 |
| 897 | Solutions | 1 | 33 | 777 | 551 |
| 897 | compost | 3 | 33 | 17 | 29 |
| 900 | Calorimetry | 4 | 32 | 1180 | 1748 |
| 900 | Thermal analysis | 4 | 32 | 1180 | 1748 |
| 903 | Stem cells | 1 | 31 | 3027 | 3086 |
| 903 | Fuzzy systems | 6 | 31 | 1321 | 2237 |
| 903 | Pregnancy | 2 | 31 | 1378 | 1751 |
| 908 | prostaglandins | 1 | 30 | 949 | 981 |
| 908 | Detectors | 2 | 30 | 1443 | 1340 |
| 913 | civilization | 2 | 29 | 1864 | 741 |
| 913 | Organelle biogenesis | 2 | 29 | 328 | 499 |
| 913 | hygiene | 2 | 29 | 826 | 1168 |
| 918 | drug therapy | 2 | 28 | 3694 | 4618 |
| 918 | Human biology | 3 | 28 | 775 | 1221 |
| 922 | Spectroscopy | 2 | 27 | 333 | 183 |
| 922 | France | 2 | 27 | 645 | 499 |
| 922 | Cheminformatics | 1 | 27 | 789 | 878 |
| 922 | Solar System | 1 | 27 | 1395 | 1419 |
| 927 | Adolescent | 1 | 26 | 4458 | 3907 |
| 927 | Minority Health | 4 | 26 | 45 | 133 |
| 927 | Social work | 1 | 26 | 3074 | 2318 |
| 927 | Electromagnetic fields | 3 | 26 | 345 | 353 |
| 927 | Metrology | 4 | 26 | 85 | 132 |
| 927 | Bacterial diseases | 1 | 26 | 635 | 760 |
| 927 | vitamins | 1 | 26 | 389 | 523 |
| 939 | Astrocytes | 1 | 25 | 1011 | 1362 |
| 939 | Latin America | 2 | 25 | 1915 | 1447 |
| 939 | Cell metabolism | 4 | 25 | 751 | 1935 |
| 947 | Interferons | 2 | 24 | 467 | 750 |
| 947 | Cost effectiveness | 1 | 24 | 189 | 184 |
| 947 | Decision making | 1 | 24 | 3214 | 3012 |
| 947 | Cytokine | 2 | 24 | 659 | 1197 |
| 947 | Southern states | 3 | 24 | 369 | 501 |
| 947 | Fossils | 4 | 24 | 28 | 63 |
| 957 | Beetles | 3 | 23 | 178 | 126 |
| 957 | drinking water | 1 | 23 | 347 | 259 |
| 957 | Jurisprudence | 2 | 23 | 1439 | 1725 |
| 957 | computer networks | 2 | 23 | 3321 | 3687 |
| 963 | Drug delivery devices | 1 | 22 | 446 | 669 |
| 963 | investigative techniques | 2 | 22 | 193 | 495 |
| 967 | Vision | 1 | 20 | 1289 | 1549 |
| 967 | Alzheimer's disease | 1 | 20 | 2779 | 2281 |
| 967 | Ore deposits | 2 | 20 | 713 | 1017 |
| 967 | mathematical analysis | 2 | 20 | 3074 | 2955 |
| 975 | Microwaves | 1 | 19 | 1965 | 1500 |
| 975 | Fibers | 3 | 19 | 122 | 156 |
| 975 | Microwave devices | 1 | 19 | 332 | 223 |
| 980 | Antibodies | 4 | 18 | 762 | 1698 |
| 980 | Antigens | 4 | 18 | 1026 | 2135 |
| 988 | Organic farming | 3 | 17 | 31 | 141 |
| 988 | Military readiness | 11 | 17 | 20 | 89 |
| 988 | military research | 11 | 17 | 31 | 75 |
| 988 | Marine mammals | 3 | 17 | 348 | 680 |
| 994 | Parenteral nutrition | 1 | 16 | 2224 | 2679 |
| 994 | Marriage | 1 | 16 | 1089 | 1256 |
| 994 | paraphilias | 1 | 16 | 405 | 577 |
| 994 | psychotherapy | 1 | 16 | 2607 | 2734 |
| 994 | Food preferences | 1 | 16 | 789 | 1078 |
| 994 | cryosphere | 1 | 16 | 744 | 921 |
| 994 | Marriage counseling | 1 | 16 | 675 | 859 |
| 1004 | Cannabis | 3 | 15 | 76 | 326 |
| 1004 | Endocrine system | 1 | 15 | 1800 | 919 |
| 1012 | Computational Complexity | 1 | 14 | 2065 | 1974 |
| 1012 | Israel | 3 | 14 | 160 | 235 |
| 1012 | Cognition | 3 | 14 | 2006 | 3601 |
| 1019 | Religion and Culture | 1 | 13 | 711 | 675 |
| 1019 | Optoelectronic devices | 3 | 13 | 1037 | 1543 |
| 1019 | Mineral resources | 1 | 13 | 1214 | 1655 |
| 1019 | Isotopes | 1 | 13 | 322 | 398 |
| 1029 | Knowledge | 2 | 12 | 594 | 733 |
| 1029 | atmospheric models | 1 | 12 | 1239 | 1614 |
| 1029 | technical education | 6 | 12 | 327 | 1124 |
| 1029 | Photosynthesis | 1 | 12 | 1 | 3 |
| 1029 | Protein engineering | 1 | 12 | 542 | 838 |
| 1029 | molecular design | 1 | 12 | 603 | 851 |
| 1029 | tree planting | 5 | 12 | 21 | 37 |
| 1029 | Argentina | 3 | 12 | 247 | 195 |
| 1029 | Digestive system diseases | 1 | 12 | 2009 | 2525 |
| 1040 | Religion and Psychology | 1 | 11 | 1191 | 1353 |
| 1040 | violence | 1 | 11 | 1878 | 2371 |
| 1040 | Aggression | 1 | 11 | 960 | 1369 |
| 1040 | world | 2 | 11 | 1097 | 2242 |
| 1049 | Obesity | 1 | 10 | 3932 | 5245 |
| 1049 | Eating Disorders | 1 | 10 | 1688 | 2202 |
| 1049 | Solitons | 3 | 10 | 1220 | 2375 |
| 1049 | Feeding and Eating Disorders | 1 | 10 | 1623 | 2123 |
| 1049 | Protein folding | 1 | 10 | 204 | 356 |
| 1049 | Fractals | 3 | 10 | 1413 | 2584 |
| 1049 | Chaos | 3 | 10 | 1220 | 2375 |
| 1049 | Sulfur | 1 | 10 | 264 | 311 |
| 1049 | Telecommunication | 4 | 10 | 2398 | 4125 |
| 1049 | Learning | 3 | 10 | 1633 | 3214 |
| 1049 | prions | 1 | 10 | 164 | 291 |
| 1066 | fuel cells | 1 | 9 | 2117 | 2737 |
| 1066 | Cell culture | 1 | 9 | 6 | 30 |
| 1066 | tissue culture | 1 | 9 | 6 | 30 |
| 1066 | Trademarks | 5 | 9 | 49 | 460 |
| 1066 | Porous materials | 1 | 9 | 1493 | 1840 |
| 1066 | health services | 1 | 9 | 2434 | 3218 |
| 1066 | software | 1 | 9 | 2018 | 2788 |
| 1066 | carbonate rocks | 1 | 9 | 298 | 369 |
| 1066 | diseases | 1 | 9 | 831 | 1420 |
| 1066 | aerosol | 2 | 9 | 598 | 1046 |
| 1084 | Sports | 6 | 8 | 1782 | 3900 |
| 1084 | Environmental forensics | 2 | 8 | 112 | 335 |
| 1084 | invasive plants | 1 | 8 | 32 | 56 |
| 1084 | Documentation | 1 | 8 | 786 | 876 |
| 1084 | Mental illness | 1 | 8 | 4008 | 5187 |
| 1097 | Respiratory system | 1 | 7 | 1308 | 1952 |
| 1097 | Flood control | 1 | 7 | 665 | 997 |
| 1097 | clay | 1 | 7 | 1530 | 2269 |
| 1097 | clay minerals | 1 | 7 | 590 | 929 |
| 1097 | food service | 1 | 7 | 254 | 305 |
| 1097 | drainage | 1 | 7 | 632 | 830 |
| 1097 | Peptide | 1 | 7 | 461 | 621 |
| 1097 | biopolymers | 1 | 7 | 2170 | 2911 |
| 1097 | Indian Ocean | 2 | 7 | 18 | 33 |
| 1097 | Hepatitis | 1 | 7 | 22 | 80 |
| 1111 | Business | 5 | 6 | 2052 | 4665 |
| 1111 | Entrepreneurship | 1 | 6 | 1912 | 2618 |
| 1111 | counseling | 5 | 6 | 1273 | 3594 |
| 1111 | disease susceptibility | 1 | 6 | 860 | 1454 |
| 1111 | coastal areas | 1 | 6 | 176 | 263 |
| 1111 | coastal archaeology | 1 | 6 | 176 | 263 |
| 1111 | islands | 1 | 6 | 176 | 263 |
| 1111 | Radiation dosimetry | 1 | 6 | 1132 | 1320 |
| 1111 | Immune system | 1 | 6 | 2145 | 3038 |
| 1111 | symptoms | 1 | 6 | 860 | 1454 |
| 1129 | Financial management | 2 | 5 | 774 | 1845 |
| 1129 | Gerontology | 2 | 5 | 3018 | 4646 |
| 1129 | Risk | 2 | 5 | 858 | 1882 |
| 1129 | Child psychology | 1 | 5 | 2906 | 3958 |
| 1129 | isomerism | 1 | 5 | 756 | 1192 |
| 1129 | Liposomes | 1 | 5 | 1150 | 1720 |
| 1129 | Chirality | 1 | 5 | 756 | 1192 |
| 1140 | natural history museums | 4 | 4 | 76 | 250 |
| 1140 | hazard mitigation | 1 | 4 | 1885 | 2902 |
| 1140 | scholarly publishing | 1 | 4 | 369 | 599 |
| 1140 | Islam | 1 | 4 | 1242 | 1276 |
| 1140 | Condensed Matter | 2 | 4 | 4312 | 5921 |
| 1140 | Scanning electron microscopy | 2 | 4 | 264 | 803 |
| 1140 | Islamic civilization | 1 | 4 | 316 | 141 |
| 1140 | natural disasters | 1 | 4 | 2470 | 3627 |
| 1154 | Seeds | 1 | 3 | 33 | 73 |
| 1154 | Glass | 1 | 3 | 2063 | 2973 |
| 1154 | pottery | 1 | 3 | 1987 | 2877 |
| 1154 | cannabinoids | 2 | 3 | 117 | 478 |
| 1154 | Spiders | 1 | 3 | 86 | 107 |
| 1167 | motivation | 1 | 2 | 661 | 1197 |
| 1167 | Crystal growth | 1 | 2 | 1816 | 2578 |
| 1167 | medical education | 2 | 2 | 3103 | 5603 |
| 1167 | Therapeutics | 1 | 2 | 3671 | 5385 |
| 1167 | Sociobiology | 1 | 2 | 576 | 1008 |
| 1167 | Pathogens | 1 | 2 | 262 | 682 |
| 1167 | Marine sediments | 1 | 2 | 76 | 105 |
| 1167 | extraterrestrial environment | 1 | 2 | 1340 | 2060 |
| 1186 | Globalization | 2 | 1 | 840 | 2268 |
| 1186 | Biological productivity | 1 | 1 | 93 | 174 |
| 1186 | nuclear power | 2 | 1 | 773 | 1451 |
| 1186 | management | 1 | 1 | 5998 | 8308 |
| 1186 | government | 2 | 1 | 1094 | 1848 |
| 1186 | Imaging systems | 1 | 1 | 1680 | 2653 |
| 1186 | reality | 1 | 1 | 77 | 57 |
| 1186 | Sudan | 3 | 1 | 10 | 34 |
| 1186 | Nonlinear systems | 1 | 1 | 1190 | 1817 |
| 1186 | Bones | 4 | 1 | 1062 | 2598 |
| 1186 | language | 1 | 1 | 1520 | 2174 |
| 1211 | Qualitative Research | 1 | 0 | 1019 | 1927 |
| 1211 | Intelligent Control Systems | 2 | 0 | 1665 | 3482 |
| 1211 | Heritage Tourism | 1 | 0 | 304 | 745 |
| 1211 | cultural tourism | 1 | 0 | 295 | 740 |
| 1211 | Service Learning | 1 | 0 | 110 | 228 |
| 1211 | Protective coatings | 1 | 0 | 393 | 835 |
| 1211 | Moon | 1 | 0 | 423 | 713 |
| 1211 | Christianity | 5 | 0 | 163 | 656 |
| 1211 | marketing | 1 | 0 | 3202 | 4736 |
| 1211 | libraries | 1 | 0 | 1624 | 2201 |
| 1211 | Bible | 5 | 0 | 241 | 631 |
| 1211 | fisheries management | 1 | 0 | 319 | 624 |
| 1211 | Diplomatic relations | 1 | 0 | 1468 | 1996 |
| 1211 | Combinatorial analysis | 1 | 0 | 1789 | 2439 |
| 1211 | Ukraine | 1 | 0 | 335 | 413 |
| 1211 | ethanol | 1 | 0 | 1128 | 1927 |
| 1211 | alcoholism | 1 | 0 | 2944 | 4641 |
| 1211 | South America | 1 | 0 | 303 | 501 |
| 1211 | Culture | 1 | 0 | 2126 | 3355 |
| 1211 | Women's health | 1 | 0 | 2927 | 4776 |
| 1211 | evaluation | 1 | 0 | 411 | 916 |
| 1211 | Navigation | 2 | 0 | 634 | 1575 |
| 1211 | international cooperation | 1 | 0 | 1332 | 2390 |