66.5K(top 0.1%)
papers
1.9M(top 0.1%)
citations
394(top 0.1%)
h-index
649(top 0.1%)
g-index
105.8K
all documents
2.2M
doc citations
40.0K
citing journals
Top Disciplines (by citations)
| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|---|---|---|---|---|
| 7 | United States | 2,088 | 49,163 | 45 | 62 |
| 13 | Natural history | 244 | 30,581 | 283 | 482 |
| 16 | Pollution | 579 | 25,425 | 114 | 155 |
| 18 | Research | 654 | 21,387 | 365 | 381 |
| 42 | Spectrum analysis | 332 | 11,253 | 168 | 266 |
| 43 | Behavior | 323 | 11,161 | 88 | 121 |
| 52 | biological evolution | 162 | 10,368 | 133 | 153 |
| 57 | Cancer | 176 | 9,468 | 489 | 392 |
| 59 | Psychophysiology | 322 | 9,308 | 127 | 209 |
| 65 | Birds | 350 | 8,230 | 16 | 16 |
| 75 | Planets | 185 | 7,372 | 189 | 198 |
| 78 | Evolution | 128 | 7,189 | 171 | 182 |
| 81 | Entomology | 310 | 7,072 | 71 | 59 |
| 82 | polymerization | 228 | 7,042 | 356 | 288 |
| 85 | Memory | 195 | 6,801 | 103 | 114 |
| 87 | Estuaries | 95 | 6,710 | 1 | 3 |
| 89 | Fisheries | 216 | 6,594 | 45 | 38 |
| 91 | Attention | 183 | 6,468 | 101 | 99 |
| 97 | Perception | 176 | 6,016 | 136 | 132 |
| 115 | Cell death | 9 | 4,841 | 936 | 202 |
| 118 | commerce | 20 | 4,806 | 372 | 92 |
| 127 | Recombinant DNA | 44 | 4,568 | 133 | 20 |
| 132 | Diabetes | 80 | 4,377 | 384 | 373 |
| 138 | Exercise | 129 | 4,293 | 42 | 28 |
| 142 | Biodiversity | 85 | 4,220 | 249 | 200 |
| 147 | nanoscience | 66 | 4,011 | 599 | 476 |
| 152 | recreation | 126 | 3,832 | 12 | 5 |
| 153 | finance | 126 | 3,775 | 108 | 196 |
| 162 | Phylogeny | 72 | 3,563 | 30 | 26 |
| 164 | Speech | 142 | 3,527 | 26 | 58 |
| 175 | miniaturization | 57 | 3,246 | 355 | 381 |
| 182 | Sleep | 59 | 3,178 | 278 | 174 |
| 184 | Virulence | 20 | 3,159 | 399 | 190 |
| 185 | Aging | 151 | 3,157 | 291 | 396 |
| 191 | Respiration | 75 | 3,044 | 177 | 179 |
| 198 | Intellectual disability | 99 | 2,940 | 36 | 44 |
| 201 | alcoholism | 145 | 2,868 | 93 | 180 |
| 202 | California | 116 | 2,813 | 14 | 19 |
| 213 | Plant diseases | 90 | 2,667 | 262 | 214 |
| 216 | Immunity | 30 | 2,639 | 737 | 760 |
| 218 | rehabilitation | 112 | 2,613 | 179 | 256 |
| 221 | Plant cells | 29 | 2,597 | 429 | 450 |
| 224 | Wetlands | 96 | 2,539 | 3 | 7 |
| 227 | pain | 90 | 2,524 | 150 | 297 |
| 230 | Decision making | 72 | 2,485 | 100 | 110 |
| 233 | plant communities | 48 | 2,421 | 183 | 197 |
| 244 | Plants | 87 | 2,297 | 280 | 510 |
| 246 | Muscles | 39 | 2,259 | 147 | 85 |
| 251 | arthritis | 31 | 2,246 | 438 | 328 |
| 252 | gene mapping | 53 | 2,243 | 335 | 407 |
| 255 | cell physiology | 40 | 2,234 | 389 | 370 |
| 257 | Agriculture | 173 | 2,225 | 100 | 230 |
| 260 | Liver diseases | 38 | 2,203 | 432 | 525 |
| 272 | Cognition | 77 | 2,054 | 235 | 296 |
| 274 | health services | 56 | 2,039 | 143 | 114 |
| 281 | Breeding | 65 | 1,895 | 156 | 185 |
| 282 | United Kingdom | 46 | 1,893 | 339 | 368 |
| 290 | drug addiction | 94 | 1,822 | 103 | 209 |
| 297 | transducers | 100 | 1,764 | 30 | 81 |
| 304 | genome | 22 | 1,691 | 690 | 665 |
| 309 | natural disasters | 53 | 1,668 | 71 | 93 |
| 311 | organization | 19 | 1,631 | 218 | 194 |
| 321 | Cell metabolism | 6 | 1,557 | 573 | 342 |
| 331 | Mental illness | 67 | 1,518 | 359 | 680 |
| 337 | enzymes | 40 | 1,475 | 165 | 162 |
| 346 | Insects | 49 | 1,429 | 201 | 171 |
| 347 | Information Science | 102 | 1,417 | 59 | 173 |
| 348 | proteins | 63 | 1,404 | 364 | 535 |
| 365 | drug therapy | 58 | 1,264 | 562 | 750 |
| 368 | Immune system | 7 | 1,239 | 942 | 659 |
| 375 | Spine | 18 | 1,192 | 312 | 228 |
| 376 | Aquaculture | 94 | 1,191 | 65 | 129 |
| 379 | Growth | 25 | 1,171 | 486 | 601 |
| 388 | Cellulose | 16 | 1,111 | 163 | 95 |
| 393 | mammals | 50 | 1,081 | 104 | 140 |
| 395 | Appetite | 21 | 1,071 | 104 | 89 |
| 401 | Europe | 71 | 1,045 | 606 | 706 |
| 402 | fertility | 18 | 1,023 | 427 | 348 |
| 404 | Quantum theory | 50 | 1,021 | 69 | 84 |
| 422 | Population | 26 | 964 | 203 | 110 |
| 428 | school psychologists | 13 | 925 | 29 | 18 |
| 430 | Recycling | 12 | 919 | 34 | 38 |
| 437 | DNA polymerases | 9 | 897 | 264 | 297 |
| 444 | Economic planning | 16 | 873 | 51 | 28 |
| 465 | herbicides | 39 | 812 | 74 | 84 |
| 467 | crime | 34 | 810 | 112 | 144 |
| 468 | baking | 11 | 801 | 84 | 38 |
| 473 | Australia | 23 | 790 | 588 | 330 |
| 485 | eugenics | 37 | 756 | 76 | 113 |
| 486 | Post-traumatic stress disorder | 21 | 754 | 233 | 234 |
| 493 | Meteorites | 23 | 736 | 188 | 184 |
| 499 | Youth | 28 | 721 | 134 | 193 |
| 502 | wetland management | 33 | 716 | 5 | 8 |
| 504 | Emotions | 18 | 712 | 172 | 211 |
| 509 | probabilities | 41 | 689 | 325 | 276 |
| 513 | Fungi | 11 | 684 | 400 | 316 |
| 514 | Metals | 24 | 683 | 645 | 429 |
| 519 | Molecular structure | 24 | 674 | 583 | 794 |
| 525 | Microscopy | 53 | 654 | 320 | 335 |
| 536 | mathematical analysis | 40 | 629 | 467 | 258 |
| 541 | Membranes | 13 | 624 | 605 | 514 |
| 546 | Digestive system diseases | 44 | 618 | 190 | 351 |
| 550 | Chromatographic analysis | 28 | 606 | 527 | 470 |
| 557 | drugs | 28 | 600 | 689 | 801 |
| 564 | Educational evaluation | 12 | 581 | 33 | 18 |
| 569 | motor skills | 24 | 571 | 20 | 47 |
| 571 | Women's health | 31 | 570 | 248 | 341 |
| 573 | Plant cell culture | 19 | 566 | 195 | 236 |
| 575 | drug evaluation | 12 | 562 | 675 | 331 |
| 576 | Hazardous waste | 24 | 560 | 95 | 302 |
| 579 | city planning | 35 | 550 | 290 | 390 |
| 582 | Genetic therapy | 17 | 546 | 598 | 704 |
| 582 | Scandinavia | 23 | 546 | 144 | 172 |
| 593 | internet | 28 | 524 | 261 | 360 |
| 597 | Primates | 16 | 515 | 316 | 266 |
| 598 | Human biology | 35 | 513 | 80 | 142 |
| 598 | glycolipids | 8 | 513 | 283 | 192 |
| 614 | Combinatorial analysis | 57 | 495 | 50 | 71 |
| 615 | biological invasions | 19 | 494 | 135 | 194 |
| 621 | Soil ecology | 10 | 488 | 220 | 187 |
| 639 | Textile industry | 30 | 469 | 126 | 77 |
| 640 | biopolymers | 18 | 467 | 514 | 531 |
| 644 | Aquatic ecology | 22 | 465 | 247 | 313 |
| 646 | computer networks | 35 | 463 | 451 | 725 |
| 647 | ethanol | 25 | 462 | 66 | 130 |
| 652 | natural gas | 40 | 459 | 41 | 75 |
| 653 | race relations | 15 | 458 | 189 | 124 |
| 657 | DNA | 19 | 454 | 92 | 96 |
| 659 | Birth control | 7 | 447 | 278 | 150 |
| 663 | cardiac catheterization | 15 | 445 | 433 | 298 |
| 666 | Vaccines | 16 | 442 | 807 | 799 |
| 668 | vitamin C | 10 | 441 | 132 | 152 |
| 668 | vitamin E | 10 | 441 | 132 | 152 |
| 674 | Fertilizers | 16 | 438 | 136 | 138 |
| 677 | role | 21 | 435 | 75 | 188 |
| 678 | immigration | 5 | 433 | 131 | 63 |
| 678 | migration policy | 5 | 433 | 111 | 63 |
| 678 | Asylum seeker | 5 | 433 | 110 | 63 |
| 681 | Extreme environments | 5 | 432 | 164 | 73 |
| 684 | freshwater biology | 15 | 429 | 347 | 380 |
| 686 | cell interaction | 16 | 427 | 438 | 523 |
| 694 | drug development | 11 | 408 | 562 | 1.0K |
| 696 | Atomic spectroscopy | 19 | 407 | 317 | 317 |
| 696 | listening | 15 | 407 | 3 | 2 |
| 714 | Genes | 18 | 383 | 401 | 497 |
| 723 | Consciousness | 30 | 372 | 24 | 119 |
| 725 | Thorax | 16 | 370 | 184 | 284 |
| 726 | Suicide | 37 | 368 | 54 | 232 |
| 736 | biological monitoring | 13 | 354 | 136 | 179 |
| 740 | human development | 21 | 349 | 215 | 416 |
| 747 | Imagination | 26 | 345 | 5 | 3 |
| 748 | Southern states | 60 | 344 | 14 | 32 |
| 752 | educational planning | 5 | 342 | 294 | 143 |
| 753 | conflict management | 11 | 340 | 105 | 105 |
| 754 | sex crimes | 15 | 339 | 211 | 208 |
| 754 | language | 23 | 339 | 219 | 405 |
| 756 | violence | 19 | 338 | 295 | 405 |
| 763 | wood | 16 | 332 | 189 | 149 |
| 766 | Autism | 24 | 328 | 163 | 380 |
| 777 | Nonlinear systems | 20 | 324 | 140 | 193 |
| 778 | Laser Spectroscopy | 14 | 323 | 357 | 335 |
| 782 | Zoonoses | 12 | 321 | 79 | 109 |
| 783 | Cell communication | 11 | 320 | 362 | 417 |
| 784 | Semiconductor industry | 10 | 319 | 25 | 10 |
| 790 | Glass | 12 | 314 | 649 | 709 |
| 790 | pottery | 12 | 314 | 632 | 698 |
| 790 | Oxidation-reduction | 9 | 314 | 447 | 750 |
| 796 | Allergy | 7 | 308 | 1.0K | 1.3K |
| 796 | child abuse | 9 | 308 | 414 | 457 |
| 799 | Student Health Services | 18 | 304 | 65 | 98 |
| 799 | international cooperation | 12 | 304 | 223 | 263 |
| 806 | bees | 16 | 299 | 108 | 170 |
| 821 | Phytotherapy | 8 | 286 | 441 | 339 |
| 828 | civil service | 6 | 278 | 253 | 165 |
| 829 | Performance | 14 | 277 | 102 | 168 |
| 829 | Minerals | 10 | 277 | 275 | 259 |
| 831 | Nitric oxide | 10 | 276 | 38 | 76 |
| 838 | technical education | 8 | 269 | 327 | 164 |
| 843 | African Americans | 20 | 266 | 17 | 24 |
| 856 | Linguistic change | 4 | 249 | 32 | 29 |
| 856 | Chronic diseases | 3 | 249 | 754 | 518 |
| 862 | Fluorescence | 12 | 245 | 89 | 86 |
| 864 | Cheminformatics | 4 | 243 | 336 | 303 |
| 865 | Yeast | 10 | 242 | 227 | 326 |
| 865 | deviant behavior | 19 | 242 | 35 | 75 |
| 867 | at-risk youth | 4 | 241 | 92 | 102 |
| 880 | drug abuse | 17 | 234 | 240 | 344 |
| 883 | Petroleum | 29 | 232 | 52 | 81 |
| 888 | Jurisprudence | 19 | 229 | 397 | 485 |
| 888 | Stress | 9 | 229 | 75 | 101 |
| 897 | cloning | 6 | 221 | 627 | 889 |
| 904 | Computer Literacy | 11 | 219 | 44 | 81 |
| 921 | Informatics | 4 | 209 | 913 | 629 |
| 927 | Criminal investigation | 5 | 207 | 99 | 35 |
| 930 | educational innovations | 8 | 206 | 238 | 220 |
| 936 | Synapses | 4 | 201 | 319 | 253 |
| 945 | India | 5 | 191 | 1.7K | 431 |
| 952 | Alzheimer's disease | 38 | 187 | 534 | 969 |
| 952 | Developing countries | 13 | 187 | 839 | 1.1K |
| 957 | Steroids | 6 | 181 | 606 | 622 |
| 963 | disaster relief | 9 | 179 | 46 | 94 |
| 966 | Multiple sclerosis | 3 | 176 | 701 | 230 |
| 968 | Fashion | 10 | 175 | 50 | 40 |
| 976 | prostaglandins | 8 | 168 | 170 | 219 |
| 976 | Kidney diseases | 8 | 168 | 785 | 900 |
| 996 | glaciers | 4 | 157 | 293 | 247 |
| 996 | Chirality | 4 | 157 | 338 | 187 |
| 1009 | Liquid chromatography | 13 | 151 | 179 | 202 |
| 1015 | weight loss | 3 | 147 | 173 | 77 |
| 1023 | antibiotics | 3 | 145 | 522 | 322 |
| 1032 | Psychiatric hospitals | 14 | 142 | 194 | 364 |
| 1043 | women | 13 | 138 | 290 | 329 |
| 1057 | Leisure | 5 | 133 | 279 | 257 |
| 1060 | viral genetics | 2 | 132 | 534 | 718 |
| 1063 | disease outbreaks | 3 | 131 | 722 | 667 |
| 1063 | Epidemics | 3 | 131 | 667 | 661 |
| 1069 | Methodology | 9 | 127 | 163 | 219 |
| 1076 | Elementary particles | 2 | 123 | 37 | 102 |
| 1076 | gait | 4 | 123 | 502 | 496 |
| 1076 | walking | 4 | 123 | 502 | 496 |
| 1084 | Detectors | 17 | 121 | 488 | 1.0K |
| 1084 | Catalysts | 10 | 121 | 338 | 528 |
| 1092 | Heterocyclic compounds | 15 | 117 | 398 | 542 |
| 1096 | family counseling | 2 | 116 | 208 | 62 |
| 1098 | scientific societies | 12 | 114 | 383 | 825 |
| 1101 | synthesis | 8 | 113 | 706 | 659 |
| 1109 | Bones | 4 | 109 | 685 | 923 |
| 1123 | tomography | 4 | 106 | 450 | 355 |
| 1128 | Water chemistry | 3 | 104 | 372 | 238 |
| 1128 | Autoimmune diseases | 1 | 104 | 1.3K | 796 |
| 1128 | Criminal behavior | 2 | 104 | 273 | 140 |
| 1128 | NMR | 3 | 104 | 755 | 443 |
| 1128 | African American | 10 | 104 | 37 | 60 |
| 1128 | magnetic resonance | 3 | 104 | 805 | 476 |
| 1145 | sexual behavior | 9 | 101 | 293 | 620 |
| 1151 | public works | 6 | 99 | 39 | 55 |
| 1151 | Climate | 8 | 99 | 256 | 561 |
| 1163 | amino acids | 7 | 96 | 505 | 871 |
| 1163 | health planning | 8 | 96 | 928 | 1.5K |
| 1167 | pigments | 2 | 95 | 498 | 325 |
| 1173 | lasers | 10 | 93 | 1.3K | 1.6K |
| 1176 | Sales management | 8 | 92 | 21 | 125 |
| 1176 | selling | 8 | 92 | 21 | 125 |
| 1180 | environmental issues | 4 | 91 | 403 | 521 |
| 1187 | Work | 1 | 89 | 683 | 286 |
| 1187 | job stress | 1 | 89 | 248 | 216 |
| 1198 | Industry | 1 | 86 | 522 | 462 |
| 1202 | administrative agencies | 3 | 84 | 293 | 255 |
| 1202 | national security | 5 | 84 | 328 | 282 |
| 1206 | biomedicine | 16 | 83 | 223 | 877 |
| 1215 | weather | 6 | 81 | 334 | 624 |
| 1232 | Prisons | 5 | 77 | 225 | 205 |
| 1232 | coal | 5 | 77 | 508 | 1.0K |
| 1232 | brain mapping | 3 | 77 | 939 | 1.1K |
| 1232 | Animal | 7 | 77 | 76 | 144 |
| 1232 | Bereavement | 4 | 77 | 118 | 126 |
| 1241 | software | 6 | 75 | 550 | 1.2K |
| 1241 | Investments | 8 | 75 | 218 | 339 |
| 1247 | gametes | 3 | 74 | 80 | 119 |
| 1253 | autism spectrum disorder | 5 | 73 | 16 | 56 |
| 1265 | Sales Promotion | 12 | 71 | 6 | 48 |
| 1271 | Chemical industry | 6 | 69 | 1.1K | 1.2K |
| 1279 | Soviet Union | 6 | 67 | 562 | 399 |
| 1283 | Marine mammals | 3 | 66 | 370 | 387 |
| 1291 | Culture techniques | 1 | 64 | 503 | 280 |
| 1291 | investigative techniques | 2 | 64 | 185 | 215 |
| 1291 | traffic safety | 2 | 64 | 427 | 295 |
| 1298 | Brain damage | 3 | 61 | 560 | 725 |
| 1304 | coastal archaeology | 4 | 60 | 46 | 81 |
| 1304 | islands | 4 | 60 | 46 | 81 |
| 1304 | Culture | 38 | 60 | 195 | 916 |
| 1322 | Methods | 7 | 56 | 54 | 107 |
| 1324 | Eigenvalues | 12 | 55 | 60 | 62 |
| 1327 | molecular chaperones | 4 | 54 | 196 | 451 |
| 1335 | periodicity | 4 | 53 | 29 | 19 |
| 1335 | Scanning electron microscopy | 5 | 53 | 92 | 193 |
| 1335 | cycles | 4 | 53 | 125 | 91 |
| 1341 | Structure-activity relationship | 2 | 52 | 688 | 584 |
| 1341 | children | 1 | 52 | 1.1K | 672 |
| 1345 | Agricultural systems | 2 | 51 | 148 | 265 |
| 1348 | Health Risk Assessment | 3 | 50 | 536 | 626 |
| 1348 | Export Marketing | 4 | 50 | 152 | 428 |
| 1358 | wages | 2 | 49 | 44 | 12 |
| 1358 | population geography | 2 | 49 | 452 | 434 |
| 1358 | Disease | 2 | 49 | 343 | 541 |
| 1369 | plankton | 2 | 48 | 321 | 369 |
| 1369 | cryosphere | 7 | 48 | 276 | 608 |
| 1369 | Instructional systems | 1 | 48 | 339 | 180 |
| 1379 | venom | 2 | 47 | 772 | 887 |
| 1379 | Toxins | 2 | 47 | 948 | 1.0K |
| 1383 | Pregnancy | 4 | 46 | 879 | 1.3K |
| 1394 | family violence | 3 | 45 | 449 | 688 |
| 1394 | Fuzzy systems | 3 | 45 | 1.9K | 1.6K |
| 1394 | police | 7 | 45 | 224 | 358 |
| 1402 | carbonate rocks | 3 | 44 | 142 | 111 |
| 1417 | Forest products | 3 | 42 | 64 | 37 |
| 1417 | livestock | 5 | 42 | 544 | 609 |
| 1426 | gene transfer | 2 | 41 | 461 | 597 |
| 1426 | genetic transformation | 2 | 41 | 461 | 597 |
| 1431 | African diaspora | 2 | 40 | 97 | 22 |
| 1435 | world | 3 | 39 | 395 | 842 |
| 1435 | Thermal analysis | 2 | 39 | 1.2K | 1.1K |
| 1444 | minority groups | 9 | 38 | 23 | 90 |
| 1444 | values | 2 | 38 | 334 | 109 |
| 1453 | child behavior | 2 | 37 | 538 | 666 |
| 1453 | Mental Health Counseling | 4 | 37 | 93 | 152 |
| 1453 | Isotopes | 1 | 37 | 327 | 171 |
| 1458 | optical devices | 3 | 36 | 507 | 651 |
| 1464 | Espionage | 2 | 35 | 62 | 18 |
| 1469 | Imaging systems | 5 | 34 | 402 | 647 |
| 1469 | Algal blooms | 2 | 34 | 289 | 484 |
| 1469 | Cyanobacteria | 2 | 34 | 289 | 484 |
| 1469 | microalgae | 2 | 34 | 289 | 484 |
| 1479 | Navier-Stokes equations | 1 | 33 | 327 | 156 |
| 1488 | Timber | 2 | 32 | 66 | 33 |
| 1488 | chronic disease | 5 | 32 | 202 | 549 |
| 1488 | Literacy | 6 | 32 | 177 | 395 |
| 1488 | Written communication | 5 | 32 | 56 | 178 |
| 1505 | hydrocolloids | 2 | 31 | 330 | 759 |
| 1505 | winds | 3 | 31 | 101 | 139 |
| 1505 | Cerebral cortex | 4 | 31 | 985 | 1.8K |
| 1505 | Youth Development | 9 | 31 | 22 | 28 |
| 1517 | Development | 3 | 30 | 781 | 1.3K |
| 1517 | Gastrointestinal diseases | 1 | 30 | 1.7K | 1.4K |
| 1520 | Business communication | 6 | 29 | 60 | 147 |
| 1528 | Uncertainty | 1 | 28 | 404 | 342 |
| 1528 | Organizations | 2 | 28 | 69 | 138 |
| 1538 | Radiation effects | 4 | 27 | 177 | 678 |
| 1550 | urban forestry | 3 | 26 | 254 | 600 |
| 1550 | Marriage counseling | 4 | 26 | 304 | 725 |
| 1550 | Solar System | 5 | 26 | 537 | 961 |
| 1563 | Credit | 2 | 25 | 165 | 321 |
| 1563 | Money | 2 | 25 | 218 | 499 |
| 1570 | chromatin | 1 | 24 | 403 | 551 |
| 1570 | adhesives | 5 | 24 | 411 | 985 |
| 1570 | sports injuries | 2 | 24 | 982 | 1.1K |
| 1581 | Sun | 4 | 23 | 444 | 701 |
| 1581 | Psychiatric Epidemiology | 2 | 23 | 810 | 1.4K |
| 1602 | death | 2 | 22 | 456 | 548 |
| 1602 | Online journalism | 3 | 22 | 95 | 261 |
| 1602 | antisocial personality disorder | 2 | 22 | 330 | 458 |
| 1602 | adulthood | 2 | 22 | 150 | 267 |
| 1619 | Central Asia | 1 | 21 | 595 | 427 |
| 1619 | Paleobotany | 1 | 21 | 371 | 437 |
| 1619 | manuscripts | 5 | 21 | 59 | 33 |
| 1619 | Instructional materials | 1 | 21 | 129 | 125 |
| 1619 | Vegetation dynamics | 1 | 21 | 352 | 426 |
| 1619 | Amphibians | 4 | 21 | 226 | 314 |
| 1619 | Radiation dosimetry | 1 | 21 | 1.2K | 780 |
| 1619 | food industry | 1 | 21 | 754 | 738 |
| 1619 | Reptiles | 5 | 21 | 209 | 401 |
| 1645 | color | 2 | 20 | 505 | 638 |
| 1645 | Developed countries | 1 | 20 | 146 | 166 |
| 1645 | World Wide Web | 1 | 20 | 888 | 623 |
| 1645 | Islamic civilization | 3 | 20 | 159 | 52 |
| 1645 | impact | 1 | 20 | 250 | 355 |
| 1657 | juvenile courts | 7 | 19 | 19 | 96 |
| 1657 | Cement | 2 | 19 | 415 | 659 |
| 1657 | Scotland | 4 | 19 | 112 | 215 |
| 1657 | RNA | 1 | 19 | 1.2K | 1.5K |
| 1657 | allied health | 2 | 19 | 434 | 687 |
| 1673 | Cannabis | 1 | 18 | 245 | 250 |
| 1673 | Nematodes | 2 | 18 | 259 | 294 |
| 1673 | heating | 1 | 18 | 371 | 344 |
| 1673 | Economic Assistance | 2 | 18 | 687 | 1.1K |
| 1673 | extraterrestrial environment | 3 | 18 | 315 | 739 |
| 1692 | biochemical markers | 1 | 17 | 1.9K | 2.2K |
| 1692 | degradation | 3 | 17 | 589 | 1.3K |
| 1701 | Government agencies | 1 | 16 | 114 | 130 |
| 1701 | Creativity | 1 | 16 | 390 | 573 |
| 1701 | Acarology | 1 | 16 | 666 | 785 |
| 1701 | Grasslands | 4 | 16 | 69 | 152 |
| 1701 | Mites | 1 | 16 | 931 | 905 |
| 1701 | Ticks | 1 | 16 | 729 | 794 |
| 1701 | Acari | 1 | 16 | 640 | 775 |
| 1721 | drug interactions | 1 | 15 | 187 | 192 |
| 1721 | professional practice | 3 | 15 | 278 | 354 |
| 1721 | tillage | 1 | 15 | 299 | 580 |
| 1721 | Insect biochemistry | 4 | 15 | 367 | 999 |
| 1721 | vitamins | 2 | 15 | 120 | 483 |
| 1740 | economic development projects | 2 | 14 | 274 | 593 |
| 1740 | Convergence | 1 | 14 | 134 | 254 |
| 1749 | strategy | 2 | 13 | 341 | 362 |
| 1749 | Endocrine system | 12 | 13 | 388 | 941 |
| 1749 | Flow cytometry | 1 | 13 | 1.1K | 1.4K |
| 1749 | Voting | 2 | 13 | 100 | 246 |
| 1769 | Seabed | 2 | 12 | 207 | 365 |
| 1769 | Ultrasound | 2 | 12 | 908 | 1.6K |
| 1769 | hygiene | 1 | 12 | 1.3K | 1.6K |
| 1769 | Radio frequency | 2 | 12 | 872 | 1.3K |
| 1785 | energy development | 2 | 11 | 1.2K | 2.2K |
| 1785 | plant oils | 1 | 11 | 515 | 749 |
| 1797 | Nuclear family | 1 | 10 | 336 | 390 |
| 1797 | explosives | 1 | 10 | 531 | 520 |
| 1797 | Approximation Theory | 2 | 10 | 326 | 453 |
| 1797 | Catholic Church | 20 | 10 | 113 | 114 |
| 1797 | Forest genetics | 3 | 10 | 401 | 883 |
| 1797 | silicon | 1 | 10 | 806 | 869 |
| 1829 | social aspects | 1 | 9 | 188 | 223 |
| 1829 | Maps | 1 | 9 | 397 | 499 |
| 1829 | Cytokine | 1 | 9 | 922 | 1.4K |
| 1846 | Evolution equations | 1 | 8 | 353 | 368 |
| 1846 | Military psychology | 3 | 8 | 123 | 366 |
| 1846 | Labor Movement | 3 | 8 | 302 | 432 |
| 1846 | collagen | 1 | 8 | 445 | 813 |
| 1864 | dissociative disorders | 1 | 7 | 259 | 472 |
| 1864 | Electromagnetic fields | 1 | 7 | 762 | 820 |
| 1864 | multimedia | 2 | 7 | 414 | 711 |
| 1864 | civil war | 1 | 7 | 120 | 179 |
| 1864 | Interactive multimedia | 2 | 7 | 535 | 868 |
| 1864 | Spanish language | 2 | 7 | 225 | 146 |
| 1864 | Aggression | 1 | 7 | 850 | 1.3K |
| 1864 | tests | 1 | 7 | 387 | 638 |
| 1864 | military intelligence | 3 | 7 | 22 | 50 |
| 1892 | Marine sediments | 1 | 6 | 46 | 70 |
| 1892 | Testing | 1 | 6 | 268 | 290 |
| 1892 | Classroom Environment | 1 | 6 | 155 | 319 |
| 1892 | Middle Ages | 3 | 6 | 289 | 394 |
| 1892 | cults | 3 | 6 | 92 | 28 |
| 1913 | Ore deposits | 1 | 5 | 686 | 1.0K |
| 1913 | Microwaves | 6 | 5 | 1.2K | 2.9K |
| 1913 | energy resources | 1 | 5 | 1.3K | 2.3K |
| 1913 | econometric models | 1 | 5 | 512 | 916 |
| 1913 | phototherapy | 1 | 5 | 559 | 710 |
| 1937 | Cartels | 1 | 4 | 156 | 162 |
| 1937 | land | 1 | 4 | 145 | 208 |
| 1937 | Shipping | 1 | 4 | 209 | 290 |
| 1937 | academic writing | 3 | 4 | 40 | 93 |
| 1937 | Autonomous robots | 1 | 4 | 428 | 741 |
| 1937 | mathematical concepts | 1 | 4 | 959 | 1.3K |
| 1966 | cataloging | 2 | 3 | 181 | 303 |
| 1966 | Calvinism | 3 | 3 | 91 | 68 |
| 1966 | public records | 1 | 3 | 102 | 193 |
| 1966 | biological agents | 2 | 3 | 991 | 1.7K |
| 1966 | South America | 2 | 3 | 189 | 333 |
| 1966 | Iran | 4 | 3 | 303 | 707 |
| 1966 | planning | 1 | 3 | 1.2K | 2.0K |
| 1966 | kidney | 2 | 3 | 271 | 556 |
| 1966 | public opinion polls | 1 | 3 | 224 | 326 |
| 1966 | Information dissemination | 1 | 3 | 423 | 834 |
| 1966 | Mollusks | 2 | 3 | 346 | 763 |
| 1966 | muscle strength | 1 | 3 | 233 | 382 |
| 1995 | crops | 1 | 2 | 351 | 623 |
| 1995 | plasma | 1 | 2 | 232 | 400 |
| 1995 | working class | 1 | 2 | 522 | 478 |
| 1995 | Missions | 1 | 2 | 269 | 154 |
| 1995 | punishment | 1 | 2 | 208 | 374 |
| 1995 | Landslides | 1 | 2 | 554 | 949 |
| 1995 | smart structures | 1 | 2 | 301 | 496 |
| 1995 | religious institutions | 3 | 2 | 1 | 7 |
| 1995 | Spain | 3 | 2 | 970 | 1.8K |
| 1995 | community music | 1 | 2 | 67 | 153 |
| 1995 | tree planting | 1 | 2 | 123 | 170 |
| 1995 | Bacterial diseases | 1 | 2 | 703 | 1.3K |
| 1995 | Holocaust | 1 | 2 | 186 | 136 |
| 2037 | Education history | 1 | 1 | 190 | 333 |
| 2037 | Helminths | 1 | 1 | 344 | 638 |
| 2037 | North Africa | 2 | 1 | 259 | 621 |
| 2037 | humanistic psychology | 1 | 1 | 208 | 430 |
| 2037 | Archives | 1 | 1 | 284 | 335 |
| 2037 | textile fibers | 1 | 1 | 1.1K | 1.7K |
| 2037 | Europa | 6 | 1 | 462 | 1.8K |
| 2037 | Chemical reactors | 1 | 1 | 281 | 531 |
| 2037 | liver | 1 | 1 | 797 | 1.4K |
| 2037 | data protection | 3 | 1 | 463 | 1.6K |
| 2037 | Costume | 1 | 1 | 148 | 291 |
| 2037 | clothing | 1 | 1 | 4 | 12 |
| 2037 | real estate | 1 | 1 | 136 | 296 |
| 2037 | Judaism | 2 | 1 | 350 | 333 |
| 2088 | Italian language | 2 | 0 | 190 | 228 |
| 2088 | cultural pluralism | 1 | 0 | 745 | 1.3K |
| 2088 | agricultural development | 1 | 0 | 36 | 67 |
| 2088 | Radicalism | 1 | 0 | 112 | 205 |
| 2088 | Radiometry | 1 | 0 | 302 | 431 |
| 2088 | slavery | 1 | 0 | 174 | 410 |
| 2088 | Participant observation | 1 | 0 | 23 | 79 |
| 2088 | insecticides | 14 | 0 | 57 | 95 |
| 2088 | Self | 1 | 0 | 393 | 750 |
| 2088 | College | 5 | 0 | 29 | 226 |
| 2088 | Vegetation | 1 | 0 | 278 | 653 |
| 2088 | Italian Americans | 1 | 0 | 46 | 6 |
| 2088 | church and state | 3 | 0 | 84 | 249 |
| 2088 | literacy programs | 3 | 0 | 27 | 69 |
| 2088 | Jews | 2 | 0 | 423 | 714 |
| 2088 | Greece | 1 | 0 | 444 | 468 |
| 2088 | Fouling | 1 | 0 | 615 | 1.2K |
| 2088 | Ireland | 1 | 0 | 478 | 778 |
| 2088 | Egypt | 2 | 0 | 523 | 1.8K |
| 2088 | Near East | 3 | 0 | 201 | 172 |
| 2088 | Fish | 1 | 0 | 839 | 1.4K |
| 2088 | prejudice | 1 | 0 | 42 | 102 |