| 3 | Materials | 3,256 | 253.6K | 29 | 8 |
| 6 | nanoscience | 1,177 | 131.7K | 6 | 5 |
| 8 | Science | 1,339 | 107.7K | 268 | 287 |
| 10 | Biocompatible Materials | 1,387 | 102.4K | 22 | 13 |
| 12 | Optical materials | 774 | 75.8K | 15 | 4 |
| 15 | Nanoparticles | 572 | 62.2K | 4 | 3 |
| 22 | miniaturization | 414 | 40.7K | 15 | 17 |
| 25 | Natural history | 104 | 38.3K | 590 | 392 |
| 26 | fuel cells | 260 | 36.5K | 9 | 4 |
| 31 | Membranes | 439 | 34.3K | 7 | 6 |
| 37 | Colloids | 568 | 27.0K | 62 | 46 |
| 38 | Electrochemistry | 794 | 26.9K | 56 | 38 |
| 42 | Neural circuitry | 496 | 24.8K | 9 | 5 |
| 43 | Pollution | 400 | 24.7K | 226 | 220 |
| 44 | Composite Materials | 463 | 24.5K | 36 | 29 |
| 46 | Research | 804 | 22.9K | 331 | 423 |
| 48 | Environment | 368 | 21.9K | 226 | 282 |
| 50 | polymerization | 447 | 20.6K | 169 | 102 |
| 52 | management | 271 | 20.0K | 120 | 137 |
| 56 | Information Science | 430 | 19.3K | 9 | 7 |
| 60 | Condensed Matter | 632 | 17.8K | 195 | 259 |
| 62 | Bioorganic chemistry | 124 | 17.3K | 238 | 27 |
| 64 | actuators | 428 | 16.7K | 6 | 11 |
| 64 | transducers | 428 | 16.7K | 6 | 11 |
| 71 | Behavior | 217 | 14.0K | 197 | 155 |
| 72 | Communication | 352 | 13.5K | 35 | 25 |
| 73 | environmental pollution | 261 | 13.4K | 211 | 192 |
| 76 | Carbon | 184 | 12.9K | 30 | 16 |
| 78 | Technology | 400 | 12.7K | 102 | 87 |
| 79 | Ocean Engineering | 347 | 12.6K | 25 | 17 |
| 81 | Statistical physics | 527 | 12.4K | 135 | 187 |
| 83 | human behavior | 172 | 11.9K | 132 | 127 |
| 88 | Nanostructures | 225 | 10.9K | 31 | 64 |
| 89 | Magnetic Materials | 200 | 10.9K | 31 | 14 |
| 91 | Metals | 178 | 10.5K | 177 | 104 |
| 93 | computer networks | 489 | 10.4K | 7 | 15 |
| 94 | micromechanics | 240 | 10.3K | 3 | 1 |
| 95 | Telecommunication | 324 | 10.2K | 28 | 11 |
| 100 | United States | 336 | 9.9K | 310 | 299 |
| 105 | coal | 44 | 9.5K | 271 | 28 |
| 108 | Evolutionary Computation | 56 | 9.4K | 11 | 2 |
| 109 | mass transfer | 253 | 9.3K | 26 | 32 |
| 111 | Immunity | 71 | 9.1K | 357 | 320 |
| 112 | concrete | 160 | 9.1K | 28 | 34 |
| 114 | Bioinformatics | 206 | 9.0K | 59 | 158 |
| 115 | Swarm Intelligence | 43 | 8.9K | 5 | 2 |
| 117 | System analysis | 281 | 8.7K | 27 | 25 |
| 124 | Asia | 560 | 8.1K | 16 | 26 |
| 135 | China | 244 | 6.9K | 127 | 82 |
| 136 | nucleic acids | 108 | 6.8K | 193 | 282 |
| 138 | Nervous system | 120 | 6.7K | 248 | 259 |
| 141 | energy development | 15 | 6.6K | 230 | 31 |
| 142 | Bioelectronics | 93 | 6.6K | 39 | 26 |
| 148 | Light | 30 | 6.1K | 196 | 79 |
| 150 | finance | 154 | 6.0K | 92 | 94 |
| 153 | marketing | 101 | 5.9K | 144 | 162 |
| 155 | Energy Harvesting | 49 | 5.9K | 32 | 17 |
| 158 | Teaching | 143 | 5.5K | 71 | 56 |
| 166 | biocatalysis | 10 | 5.2K | 47 | 14 |
| 166 | Homogeneous catalysis | 10 | 5.2K | 47 | 14 |
| 166 | Heterogeneous catalysis | 10 | 5.2K | 47 | 14 |
| 169 | Tunneling | 78 | 5.1K | 15 | 9 |
| 169 | underground construction | 78 | 5.1K | 15 | 9 |
| 171 | Host-parasite interactions | 51 | 5.0K | 203 | 179 |
| 172 | Business | 95 | 4.9K | 161 | 226 |
| 172 | internet | 221 | 4.9K | 7 | 9 |
| 177 | Stem cells | 48 | 4.7K | 332 | 117 |
| 178 | Multimedia Systems | 281 | 4.7K | 9 | 11 |
| 181 | impact | 71 | 4.6K | 10 | 6 |
| 182 | Earth Sciences | 111 | 4.6K | 395 | 371 |
| 183 | personality | 66 | 4.5K | 216 | 173 |
| 186 | Medical innovations | 38 | 4.4K | 127 | 125 |
| 187 | Advertising | 39 | 4.3K | 22 | 5 |
| 188 | Lightweight concrete | 71 | 4.3K | 15 | 22 |
| 192 | Virulence | 47 | 4.0K | 198 | 182 |
| 197 | Diabetes | 43 | 3.8K | 646 | 478 |
| 198 | genome | 63 | 3.8K | 208 | 333 |
| 200 | lasers | 206 | 3.8K | 33 | 29 |
| 202 | Cement | 47 | 3.8K | 68 | 68 |
| 203 | biological factors | 97 | 3.8K | 83 | 88 |
| 205 | Proteome | 57 | 3.7K | 123 | 101 |
| 210 | Technological Innovations | 76 | 3.7K | 16 | 9 |
| 210 | biopolymers | 107 | 3.7K | 55 | 60 |
| 212 | economic policy | 102 | 3.6K | 187 | 101 |
| 213 | drug development | 15 | 3.6K | 400 | 141 |
| 214 | Intelligent Control Systems | 88 | 3.6K | 29 | 6 |
| 216 | Child Development | 83 | 3.5K | 288 | 277 |
| 218 | International Finance | 72 | 3.4K | 126 | 63 |
| 221 | Drug delivery systems | 45 | 3.3K | 203 | 136 |
| 227 | Electrochemical Analysis | 74 | 3.2K | 130 | 93 |
| 230 | Production Management | 92 | 3.0K | 57 | 145 |
| 232 | Measurement | 88 | 3.0K | 56 | 34 |
| 237 | Organometallic compounds | 116 | 2.7K | 36 | 79 |
| 237 | proteins | 103 | 2.7K | 181 | 288 |
| 239 | Entrepreneurship | 58 | 2.7K | 36 | 150 |
| 241 | Planets | 93 | 2.7K | 323 | 459 |
| 242 | Cell differentiation | 52 | 2.7K | 400 | 523 |
| 243 | Allergy | 14 | 2.7K | 735 | 424 |
| 245 | Water quality management | 119 | 2.6K | 60 | 87 |
| 248 | educational innovations | 54 | 2.6K | 13 | 15 |
| 249 | Soft Condensed Matter | 81 | 2.6K | 88 | 103 |
| 250 | Europe | 94 | 2.6K | 450 | 368 |
| 251 | Nonlinear systems | 90 | 2.5K | 14 | 13 |
| 252 | Cancer | 60 | 2.5K | 1083 | 1128 |
| 254 | commerce | 50 | 2.5K | 167 | 190 |
| 255 | Library Science | 71 | 2.5K | 100 | 11 |
| 257 | Hazardous waste | 47 | 2.5K | 37 | 42 |
| 259 | viruses | 32 | 2.5K | 518 | 422 |
| 261 | Ceramic materials | 77 | 2.4K | 97 | 88 |
| 262 | Online journalism | 23 | 2.4K | 4 | 1 |
| 263 | organization | 20 | 2.4K | 230 | 165 |
| 266 | energy resources | 35 | 2.4K | 256 | 257 |
| 267 | industrial waste | 48 | 2.4K | 29 | 41 |
| 268 | radioactive waste | 43 | 2.4K | 34 | 41 |
| 269 | Health | 84 | 2.4K | 270 | 295 |
| 270 | Microwaves | 330 | 2.4K | 9 | 17 |
| 271 | Zeolites | 35 | 2.3K | 124 | 61 |
| 273 | Waste management | 93 | 2.3K | 37 | 47 |
| 275 | innovation | 22 | 2.3K | 89 | 95 |
| 281 | Marine resources | 57 | 2.2K | 20 | 13 |
| 282 | Ultrasonics | 73 | 2.2K | 41 | 71 |
| 283 | Spectrum analysis | 134 | 2.2K | 727 | 1230 |
| 284 | Sports | 111 | 2.2K | 203 | 307 |
| 285 | medical education | 119 | 2.2K | 178 | 245 |
| 286 | Decision making | 53 | 2.2K | 160 | 166 |
| 288 | Communication in medicine | 62 | 2.1K | 54 | 42 |
| 289 | Molecular structure | 61 | 2.1K | 346 | 435 |
| 290 | Image enhancement | 76 | 2.1K | 5 | 5 |
| 292 | Water Purification | 84 | 2.1K | 31 | 47 |
| 294 | Learning | 44 | 2.1K | 240 | 240 |
| 296 | theoretical models | 35 | 2.1K | 4 | 1 |
| 298 | Psychophysiology | 67 | 2.1K | 686 | 832 |
| 299 | solar cells | 56 | 2.1K | 51 | 88 |
| 300 | enzymes | 42 | 2.1K | 252 | 187 |
| 301 | Australia | 120 | 2.1K | 121 | 140 |
| 303 | Fuzzy systems | 113 | 2.0K | 43 | 56 |
| 305 | Chemical analysis | 59 | 2.0K | 86 | 54 |
| 308 | Surface properties | 54 | 2.0K | 59 | 76 |
| 311 | Venture Capital | 13 | 2.0K | 55 | 79 |
| 312 | Speech | 27 | 2.0K | 224 | 107 |
| 313 | Growth | 22 | 2.0K | 500 | 421 |
| 315 | Genetic regulation | 32 | 2.0K | 250 | 319 |
| 316 | Microorganisms | 40 | 2.0K | 189 | 270 |
| 319 | Developing countries | 75 | 1.9K | 237 | 313 |
| 320 | machinery | 49 | 1.9K | 48 | 22 |
| 323 | Business Ethics | 22 | 1.9K | 216 | 158 |
| 324 | Oral communication | 24 | 1.9K | 57 | 6 |
| 327 | Plastics | 69 | 1.8K | 145 | 142 |
| 328 | Crystal growth | 36 | 1.8K | 143 | 71 |
| 329 | gene mapping | 49 | 1.8K | 391 | 552 |
| 330 | Interactive multimedia | 92 | 1.8K | 10 | 9 |
| 331 | Microfluidics | 37 | 1.8K | 9 | 6 |
| 331 | Capital market | 26 | 1.8K | 38 | 11 |
| 333 | multimedia | 86 | 1.8K | 8 | 9 |
| 334 | Radio | 57 | 1.8K | 55 | 36 |
| 338 | natural disasters | 54 | 1.8K | 75 | 105 |
| 346 | catalytic activity | 38 | 1.7K | 69 | 70 |
| 348 | national security | 9 | 1.7K | 175 | 8 |
| 349 | ports | 45 | 1.7K | 8 | 4 |
| 350 | biological evolution | 25 | 1.7K | 807 | 759 |
| 351 | software | 37 | 1.7K | 60 | 50 |
| 353 | health planning | 53 | 1.7K | 275 | 191 |
| 355 | Semiconductor industry | 86 | 1.6K | 28 | 21 |
| 361 | sustainability | 31 | 1.6K | 71 | 147 |
| 363 | Plants | 40 | 1.6K | 545 | 653 |
| 364 | health services | 41 | 1.6K | 181 | 120 |
| 365 | Cognition | 57 | 1.6K | 326 | 416 |
| 367 | Mass Media | 107 | 1.6K | 28 | 17 |
| 368 | Plant physiology | 28 | 1.6K | 760 | 700 |
| 372 | Glass | 64 | 1.5K | 152 | 219 |
| 372 | pottery | 64 | 1.5K | 146 | 214 |
| 374 | structural stability | 35 | 1.5K | 39 | 27 |
| 376 | Recycling | 22 | 1.5K | 94 | 99 |
| 378 | Biofilms | 28 | 1.5K | 1 | 2 |
| 379 | drugs | 24 | 1.5K | 810 | 381 |
| 380 | Child psychology | 49 | 1.5K | 335 | 470 |
| 382 | Mechanics | 147 | 1.5K | 24 | 121 |
| 383 | Metallography | 38 | 1.4K | 92 | 47 |
| 384 | Health promotion | 37 | 1.4K | 344 | 335 |
| 387 | Computer Literacy | 26 | 1.4K | 13 | 4 |
| 389 | protein | 61 | 1.4K | 144 | 292 |
| 391 | Gene expression regulation | 21 | 1.4K | 309 | 303 |
| 393 | Chromosome mapping | 45 | 1.3K | 361 | 554 |
| 394 | Graphene | 5 | 1.3K | 50 | 4 |
| 395 | Adolescent | 44 | 1.3K | 472 | 430 |
| 398 | visualization | 157 | 1.3K | 34 | 71 |
| 399 | Cell death | 26 | 1.3K | 386 | 480 |
| 399 | rehabilitation | 42 | 1.3K | 487 | 522 |
| 402 | plant molecular biology | 32 | 1.3K | 470 | 684 |
| 402 | scientific societies | 14 | 1.3K | 334 | 118 |
| 406 | Ultrasound | 53 | 1.3K | 34 | 47 |
| 407 | Brain | 52 | 1.3K | 790 | 1020 |
| 408 | Biodiversity | 18 | 1.3K | 991 | 642 |
| 409 | Investment analysis | 23 | 1.3K | 96 | 61 |
| 410 | Metabolic diseases | 29 | 1.3K | 982 | 1163 |
| 411 | Bacterial infections | 12 | 1.3K | 413 | 322 |
| 413 | Transport | 25 | 1.2K | 112 | 97 |
| 414 | mycoses | 11 | 1.2K | 429 | 299 |
| 421 | Biomolecules | 33 | 1.2K | 27 | 81 |
| 423 | Evolution | 14 | 1.2K | 1027 | 750 |
| 426 | Microprocessors | 87 | 1.2K | 4 | 11 |
| 427 | Quantum theory | 42 | 1.2K | 133 | 111 |
| 429 | Immune system | 6 | 1.1K | 951 | 670 |
| 431 | infection | 40 | 1.1K | 382 | 558 |
| 432 | Social policy | 16 | 1.1K | 369 | 101 |
| 432 | Auditing | 33 | 1.1K | 18 | 36 |
| 435 | plasma spraying | 34 | 1.1K | 21 | 27 |
| 438 | Diet | 22 | 1.1K | 902 | 825 |
| 439 | Photobiology | 21 | 1.1K | 339 | 175 |
| 442 | Chemical industry | 38 | 1.1K | 250 | 140 |
| 447 | Obesity | 27 | 1.1K | 780 | 795 |
| 449 | Liposomes | 8 | 1.0K | 277 | 105 |
| 449 | Lipid bilayers | 8 | 1.0K | 236 | 97 |
| 451 | Food | 34 | 1.0K | 933 | 995 |
| 455 | Ventilation | 22 | 1.0K | 103 | 67 |
| 455 | Imaging systems | 79 | 1.0K | 10 | 24 |
| 459 | Radio wave propagation | 87 | 994 | 21 | 40 |
| 460 | soil microbiology | 17 | 993 | 626 | 670 |
| 461 | Crystallography | 45 | 990 | 371 | 254 |
| 463 | hazard mitigation | 31 | 986 | 91 | 115 |
| 467 | Ethology | 15 | 950 | 751 | 677 |
| 468 | Biodiversity conservation | 12 | 947 | 991 | 1022 |
| 469 | indoor air pollution | 18 | 938 | 80 | 61 |
| 469 | Sick building syndrome | 18 | 938 | 80 | 61 |
| 472 | Physical fitness | 17 | 931 | 405 | 255 |
| 473 | Mental illness | 28 | 927 | 725 | 992 |
| 479 | Vocational guidance | 16 | 905 | 346 | 286 |
| 481 | Detectors | 52 | 903 | 63 | 43 |
| 482 | brain mapping | 16 | 901 | 273 | 268 |
| 484 | Climate change | 11 | 898 | 626 | 895 |
| 485 | Social problems | 11 | 897 | 254 | 133 |
| 488 | Sonochemistry | 20 | 889 | 93 | 124 |
| 489 | Philippines | 48 | 882 | 6 | 5 |
| 490 | Ultrasonic Imaging | 35 | 879 | 41 | 47 |
| 491 | Developmental Disabilities | 37 | 874 | 214 | 367 |
| 495 | Computational Complexity | 73 | 861 | 27 | 52 |
| 497 | cloning | 14 | 853 | 265 | 323 |
| 499 | Bioinorganic chemistry | 51 | 851 | 199 | 348 |
| 501 | Oncogenes | 14 | 833 | 671 | 784 |
| 504 | viral genetics | 4 | 819 | 369 | 304 |
| 507 | Fractals | 34 | 813 | 174 | 183 |
| 508 | mathematical analysis | 96 | 811 | 323 | 536 |
| 509 | Solitons | 31 | 804 | 151 | 154 |
| 509 | Chaos | 31 | 804 | 151 | 154 |
| 511 | Sensor Networks | 33 | 796 | 8 | 10 |
| 512 | Exercise | 36 | 789 | 265 | 305 |
| 513 | Molecular Spectroscopy | 70 | 788 | 160 | 390 |
| 514 | Sales management | 6 | 785 | 122 | 109 |
| 514 | selling | 6 | 785 | 122 | 109 |
| 517 | Southeast Asia | 83 | 783 | 13 | 19 |
| 518 | Multilingualism | 25 | 781 | 14 | 12 |
| 519 | planning | 4 | 777 | 692 | 68 |
| 521 | Vaccines | 27 | 775 | 660 | 710 |
| 523 | Biogeochemistry | 14 | 774 | 589 | 578 |
| 524 | Economic planning | 3 | 767 | 549 | 63 |
| 525 | natural products | 17 | 765 | 711 | 466 |
| 526 | adolescence | 23 | 763 | 257 | 316 |
| 526 | Geodynamics | 19 | 763 | 344 | 319 |
| 531 | Plant cells | 17 | 751 | 568 | 866 |
| 534 | Aging | 82 | 744 | 512 | 1191 |
| 535 | Eutrophication | 6 | 743 | 852 | 945 |
| 535 | ecosystem | 9 | 743 | 882 | 624 |
| 537 | Primates | 8 | 741 | 502 | 197 |
| 539 | eye | 4 | 738 | 186 | 163 |
| 540 | Radio waves | 32 | 736 | 44 | 36 |
| 541 | Raman spectroscopy | 26 | 733 | 130 | 121 |
| 544 | electric vehicles | 42 | 724 | 19 | 19 |
| 545 | Parasitic Diseases | 25 | 721 | 757 | 876 |
| 547 | Enzyme | 11 | 718 | 181 | 110 |
| 548 | Finite Element Method | 24 | 710 | 21 | 15 |
| 549 | Earthquakes | 29 | 704 | 79 | 82 |
| 551 | Soil biology | 9 | 700 | 602 | 505 |
| 554 | Strategic planning | 16 | 690 | 197 | 157 |
| 556 | Social Media | 19 | 686 | 27 | 33 |
| 558 | Synthetic biology | 8 | 684 | 166 | 66 |
| 558 | probabilities | 67 | 684 | 180 | 244 |
| 560 | Quantum Optics | 49 | 681 | 92 | 195 |
| 561 | Quality of life | 21 | 679 | 447 | 544 |
| 562 | Chromatographic analysis | 23 | 677 | 651 | 479 |
| 563 | Chromatography | 22 | 675 | 542 | 429 |
| 564 | particles | 27 | 672 | 145 | 149 |
| 566 | carbon monoxide | 14 | 668 | 48 | 53 |
| 567 | technical education | 31 | 667 | 44 | 50 |
| 568 | data collection | 19 | 666 | 239 | 437 |
| 568 | Plasma devices | 19 | 666 | 85 | 109 |
| 571 | counseling | 17 | 662 | 564 | 423 |
| 572 | Emotions | 15 | 659 | 212 | 244 |
| 573 | RNA | 13 | 655 | 219 | 225 |
| 574 | Fisheries | 21 | 653 | 688 | 628 |
| 576 | Atomic spectroscopy | 46 | 648 | 158 | 314 |
| 576 | Laser Spectroscopy | 47 | 648 | 81 | 178 |
| 579 | city planning | 28 | 646 | 436 | 461 |
| 581 | Sea | 17 | 641 | 152 | 154 |
| 581 | Volcanoes | 26 | 641 | 57 | 89 |
| 581 | Fishery resources | 17 | 641 | 180 | 166 |
| 585 | Adolescent Psychology | 17 | 628 | 313 | 323 |
| 586 | Ferroelectricity | 47 | 627 | 121 | 120 |
| 586 | Agriculture | 21 | 627 | 908 | 860 |
| 588 | Adaptive control systems | 40 | 625 | 43 | 60 |
| 589 | Marine Pollution | 23 | 624 | 329 | 510 |
| 596 | older people | 52 | 603 | 323 | 385 |
| 597 | Alzheimer's disease | 44 | 600 | 417 | 546 |
| 597 | language | 25 | 600 | 201 | 251 |
| 599 | Disease | 5 | 599 | 253 | 634 |
| 604 | cultural pluralism | 21 | 587 | 32 | 24 |
| 606 | Food additives | 7 | 576 | 866 | 482 |
| 606 | hydrocolloids | 7 | 576 | 415 | 337 |
| 609 | Travel | 30 | 574 | 134 | 149 |
| 609 | transport vesicles | 6 | 574 | 124 | 348 |
| 611 | Risk | 21 | 568 | 121 | 203 |
| 611 | free radicals | 12 | 568 | 877 | 882 |
| 613 | Financial management | 21 | 567 | 89 | 185 |
| 613 | East Asia | 63 | 567 | 21 | 36 |
| 616 | Gerontology | 56 | 563 | 389 | 685 |
| 616 | individual differences | 16 | 563 | 47 | 71 |
| 618 | Navigation | 20 | 558 | 90 | 63 |
| 621 | Coding Theory | 51 | 551 | 10 | 23 |
| 624 | Second Language Acquisition | 8 | 544 | 83 | 71 |
| 625 | Personality Assessment | 10 | 542 | 288 | 258 |
| 626 | Sound | 34 | 538 | 91 | 93 |
| 627 | plasticity | 13 | 537 | 116 | 166 |
| 628 | United Kingdom | 15 | 536 | 820 | 904 |
| 629 | Small Business | 12 | 533 | 317 | 463 |
| 630 | consumers | 13 | 532 | 88 | 88 |
| 632 | biomimicry | 17 | 526 | 14 | 32 |
| 633 | Molecular ecology | 10 | 524 | 707 | 752 |
| 634 | diseases | 3 | 522 | 392 | 686 |
| 636 | Lipids | 18 | 519 | 515 | 756 |
| 637 | Combinatorial analysis | 64 | 515 | 114 | 195 |
| 638 | Roads | 18 | 514 | 313 | 222 |
| 639 | Intelligence | 9 | 512 | 105 | 98 |
| 640 | Informatics | 34 | 511 | 90 | 336 |
| 643 | International Education | 13 | 506 | 36 | 24 |
| 645 | synthesis | 26 | 503 | 193 | 134 |
| 646 | Molecular evolution | 12 | 502 | 975 | 939 |
| 647 | Cell metabolism | 4 | 500 | 751 | 791 |
| 649 | Language teaching | 33 | 493 | 5 | 9 |
| 649 | second language | 33 | 493 | 5 | 9 |
| 649 | Development | 15 | 493 | 294 | 389 |
| 655 | Sleep | 11 | 488 | 1146 | 838 |
| 657 | Leadership | 5 | 486 | 379 | 238 |
| 657 | Homeostasis | 3 | 486 | 609 | 776 |
| 661 | cell membrane | 32 | 479 | 141 | 326 |
| 661 | cell physiology | 20 | 479 | 637 | 1112 |
| 664 | Futures | 10 | 478 | 112 | 57 |
| 665 | Diagnostic microbiology | 7 | 477 | 1148 | 1144 |
| 665 | Oxidation-reduction | 5 | 477 | 759 | 618 |
| 667 | DNA polymerases | 3 | 475 | 558 | 497 |
| 671 | educational planning | 9 | 471 | 181 | 118 |
| 672 | radar | 13 | 469 | 65 | 49 |
| 672 | Sonar | 13 | 469 | 55 | 39 |
| 674 | Population | 19 | 467 | 328 | 362 |
| 676 | Adhesion | 23 | 460 | 67 | 103 |
| 676 | adhesives | 23 | 460 | 78 | 105 |
| 678 | optical devices | 29 | 459 | 46 | 76 |
| 679 | world | 14 | 456 | 285 | 455 |
| 682 | Parasitology | 19 | 454 | 1135 | 1140 |
| 683 | Molecules | 38 | 451 | 404 | 655 |
| 685 | environmental exposure | 15 | 449 | 853 | 945 |
| 685 | Japan | 30 | 449 | 616 | 570 |
| 687 | Cognitive neuroscience | 28 | 447 | 279 | 682 |
| 687 | violence | 15 | 447 | 377 | 408 |
| 689 | Radio frequency | 20 | 446 | 44 | 63 |
| 690 | Porous materials | 20 | 445 | 128 | 128 |
| 691 | Culture | 45 | 444 | 159 | 220 |
| 693 | Social Change | 16 | 437 | 287 | 546 |
| 697 | locomotion | 13 | 432 | 312 | 267 |
| 697 | posture | 13 | 432 | 312 | 267 |
| 697 | gait | 13 | 432 | 312 | 267 |
| 697 | walking | 13 | 432 | 312 | 267 |
| 702 | pollutants | 12 | 429 | 1012 | 1080 |
| 702 | Environmental pollutants | 12 | 429 | 1282 | 1272 |
| 704 | India | 33 | 428 | 307 | 180 |
| 706 | Reading | 23 | 427 | 142 | 198 |
| 707 | drug evaluation | 10 | 426 | 764 | 485 |
| 708 | Genetic algorithms | 13 | 425 | 48 | 88 |
| 709 | biomedicine | 21 | 424 | 172 | 263 |
| 710 | Creativity | 14 | 423 | 37 | 61 |
| 710 | mathematical concepts | 24 | 423 | 43 | 50 |
| 714 | Fiber Optics | 28 | 419 | 79 | 79 |
| 715 | Microscopy | 45 | 418 | 265 | 583 |
| 715 | race relations | 16 | 418 | 184 | 150 |
| 720 | big data | 29 | 413 | 14 | 106 |
| 721 | Hormones | 13 | 409 | 739 | 856 |
| 723 | plant communities | 7 | 408 | 811 | 757 |
| 724 | Cardiovascular diseases | 4 | 406 | 1852 | 855 |
| 725 | Neurons | 3 | 404 | 894 | 1057 |
| 731 | cross-cultural comparison | 20 | 391 | 80 | 109 |
| 734 | motivation | 8 | 387 | 163 | 147 |
| 734 | Emotion | 8 | 387 | 82 | 102 |
| 736 | water supply | 21 | 386 | 325 | 599 |
| 736 | Diplomatic relations | 53 | 386 | 77 | 75 |
| 739 | Water Microbiology | 12 | 383 | 109 | 135 |
| 741 | Dementia | 36 | 379 | 455 | 632 |
| 743 | Fouling | 11 | 378 | 62 | 87 |
| 745 | microwave communication systems | 19 | 377 | 14 | 16 |
| 746 | Broadcasting | 16 | 376 | 21 | 42 |
| 747 | Entropy | 31 | 375 | 116 | 212 |
| 750 | Computational Fluid Dynamics | 30 | 367 | 85 | 216 |
| 754 | World Wide Web | 43 | 359 | 10 | 60 |
| 755 | human development | 26 | 358 | 176 | 440 |
| 757 | Luminescence | 16 | 356 | 479 | 422 |
| 757 | Human Resources | 13 | 356 | 133 | 221 |
| 759 | economic conditions | 11 | 354 | 280 | 259 |
| 760 | Exercise therapy | 8 | 353 | 164 | 56 |
| 762 | Language planning | 13 | 352 | 27 | 6 |
| 763 | Instructional systems | 10 | 350 | 32 | 22 |
| 767 | Economic Assistance | 15 | 346 | 244 | 457 |
| 774 | Radiation | 16 | 337 | 1079 | 1070 |
| 777 | X-ray crystallography | 23 | 333 | 161 | 203 |
| 777 | Convergence | 10 | 333 | 12 | 25 |
| 780 | complementary therapies | 18 | 331 | 753 | 928 |
| 782 | local government | 8 | 330 | 187 | 126 |
| 783 | Erosion | 8 | 329 | 22 | 14 |
| 783 | explosives | 13 | 329 | 99 | 60 |
| 786 | Mycology | 12 | 325 | 984 | 1060 |
| 788 | Child welfare | 11 | 323 | 550 | 483 |
| 789 | Export Marketing | 5 | 322 | 116 | 121 |
| 789 | Classroom Environment | 8 | 322 | 13 | 13 |
| 791 | Spine | 7 | 321 | 578 | 559 |
| 791 | pigments | 20 | 321 | 202 | 335 |
| 795 | libraries | 7 | 316 | 519 | 160 |
| 796 | Quantum Gravity | 16 | 313 | 1298 | 1405 |
| 802 | curriculum evaluation | 21 | 309 | 49 | 94 |
| 805 | foreign exchange | 3 | 304 | 395 | 196 |
| 806 | Mass Spectrometry | 10 | 303 | 774 | 751 |
| 806 | dietary supplements | 10 | 303 | 340 | 396 |
| 806 | Meteorites | 11 | 303 | 630 | 873 |
| 810 | Mental Health Services | 17 | 301 | 523 | 648 |
| 810 | Thorax | 5 | 301 | 449 | 365 |
| 812 | Collective behavior | 20 | 300 | 5 | 15 |
| 812 | Intellectual disability | 16 | 300 | 335 | 443 |
| 814 | clay | 10 | 296 | 353 | 501 |
| 815 | Inflammation | 7 | 295 | 963 | 966 |
| 818 | Socialization | 9 | 293 | 258 | 329 |
| 819 | Aquaculture | 12 | 291 | 822 | 868 |
| 822 | Synaptic Transmission | 7 | 286 | 344 | 303 |
| 822 | Building | 11 | 286 | 324 | 192 |
| 824 | strategy | 25 | 285 | 35 | 26 |
| 828 | Speech Disorders | 11 | 282 | 583 | 624 |
| 829 | Parasites | 14 | 281 | 791 | 918 |
| 829 | Cerebral cortex | 10 | 281 | 605 | 830 |
| 831 | Writing | 14 | 280 | 59 | 109 |
| 833 | Recombinant DNA | 14 | 279 | 758 | 1037 |
| 836 | reasoning | 13 | 276 | 79 | 123 |
| 839 | Malaria | 8 | 272 | 498 | 443 |
| 845 | Aggression | 5 | 270 | 365 | 303 |
| 847 | tests | 10 | 269 | 48 | 87 |
| 851 | risk factors | 2 | 267 | 1152 | 500 |
| 851 | gastrointestinal tract | 5 | 267 | 213 | 240 |
| 853 | Aerosols | 14 | 264 | 256 | 323 |
| 853 | social conflict | 18 | 264 | 17 | 44 |
| 853 | civil service | 6 | 264 | 265 | 187 |
| 856 | Plasma polymerization | 3 | 262 | 303 | 124 |
| 859 | Marine Geophysics | 15 | 261 | 57 | 79 |
| 859 | Marine mineral resources | 15 | 261 | 30 | 23 |
| 859 | Housing | 5 | 261 | 356 | 253 |
| 859 | atmospheric models | 9 | 261 | 474 | 621 |
| 859 | Seabed | 15 | 261 | 30 | 23 |
| 869 | construction | 7 | 258 | 96 | 99 |
| 870 | Antibacterial agents | 10 | 257 | 346 | 508 |
| 870 | Educational Change | 8 | 257 | 13 | 21 |
| 872 | school sports | 7 | 256 | 62 | 54 |
| 872 | Industry | 3 | 256 | 184 | 189 |
| 875 | Forest Management | 6 | 253 | 818 | 749 |
| 876 | radiative transfer | 8 | 252 | 403 | 316 |
| 876 | Climate | 3 | 252 | 716 | 400 |
| 880 | Ethnology | 15 | 251 | 676 | 619 |
| 880 | Literacy | 12 | 251 | 97 | 91 |
| 882 | Knowledge management | 18 | 249 | 43 | 47 |
| 885 | Instructional materials | 14 | 243 | 4 | 9 |
| 886 | Molecular cloning | 12 | 242 | 787 | 1058 |
| 886 | Genetic recombination | 12 | 242 | 774 | 1047 |
| 888 | Cytoskeleton | 3 | 240 | 347 | 183 |
| 888 | feeding behavior | 11 | 240 | 405 | 560 |
| 890 | Friction | 6 | 239 | 46 | 55 |
| 894 | Happiness | 5 | 235 | 287 | 213 |
| 897 | questioning | 3 | 233 | 43 | 5 |
| 898 | Interfaces | 15 | 232 | 48 | 95 |
| 899 | Vision | 11 | 231 | 352 | 532 |
| 903 | Eating Disorders | 7 | 228 | 646 | 645 |
| 903 | Feeding and Eating Disorders | 7 | 228 | 622 | 621 |
| 903 | global environmental change | 7 | 228 | 604 | 818 |
| 906 | Autism | 9 | 226 | 448 | 606 |
| 907 | international cooperation | 11 | 224 | 240 | 376 |
| 909 | air | 1 | 222 | 380 | 182 |
| 909 | Blood vessels | 4 | 222 | 339 | 214 |
| 916 | DNA methylation | 3 | 219 | 340 | 246 |
| 918 | Corporate governance | 7 | 218 | 305 | 319 |
| 920 | North America | 26 | 216 | 198 | 455 |
| 923 | Reproduction | 6 | 214 | 2205 | 1900 |
| 923 | Cellulose | 8 | 214 | 319 | 420 |
| 923 | Uncertainty | 6 | 214 | 88 | 105 |
| 928 | biological invasions | 1 | 212 | 1233 | 461 |
| 928 | econometric models | 17 | 212 | 99 | 336 |
| 931 | Corporate Social Responsibility | 4 | 211 | 200 | 239 |
| 931 | environmental auditing | 4 | 211 | 213 | 242 |
| 933 | Human evolution | 3 | 210 | 498 | 402 |
| 933 | movement | 8 | 210 | 139 | 196 |
| 935 | curriculum planning | 10 | 209 | 59 | 58 |
| 936 | Chemical processes | 5 | 207 | 527 | 320 |
| 938 | Cosmochemistry | 10 | 206 | 530 | 755 |
| 939 | Biometrics | 20 | 204 | 430 | 787 |
| 940 | carcinogens | 2 | 203 | 1576 | 997 |
| 940 | Memory | 13 | 203 | 1159 | 1769 |
| 940 | Pregnancy | 10 | 203 | 453 | 588 |
| 944 | Bioprinting | 7 | 202 | 15 | 19 |
| 945 | mutagens | 2 | 199 | 1313 | 943 |
| 946 | amino acids | 3 | 198 | 709 | 436 |
| 947 | extraterrestrial environment | 15 | 197 | 214 | 301 |
| 947 | astronomical phenomena | 15 | 197 | 202 | 280 |
| 950 | Primary health care | 16 | 196 | 792 | 1282 |
| 950 | Calorimetry | 13 | 196 | 466 | 582 |
| 950 | Thermal analysis | 13 | 196 | 466 | 582 |
| 953 | food handling | 8 | 194 | 498 | 770 |
| 954 | Photovoltaic Cells | 9 | 192 | 77 | 172 |
| 954 | international trade | 10 | 192 | 301 | 395 |
| 954 | recreation | 17 | 192 | 230 | 303 |
| 958 | Public opinion | 9 | 191 | 197 | 279 |
| 958 | Appetite | 10 | 191 | 357 | 584 |
| 962 | Algal blooms | 2 | 190 | 448 | 307 |
| 962 | Cyanobacteria | 2 | 190 | 448 | 307 |
| 962 | microalgae | 2 | 190 | 448 | 307 |
| 965 | monoclonal antibodies | 1 | 188 | 564 | 83 |
| 965 | aerosol | 8 | 188 | 262 | 273 |
| 967 | Perception | 14 | 186 | 1134 | 1829 |
| 969 | disease vectors | 8 | 185 | 632 | 787 |
| 970 | Environmental risk assessment | 12 | 183 | 108 | 220 |
| 971 | International security | 5 | 182 | 169 | 217 |
| 971 | residential treatment | 4 | 182 | 130 | 53 |
| 973 | public opinion polls | 8 | 181 | 34 | 20 |
| 974 | Visual Perception | 14 | 180 | 1007 | 1707 |
| 974 | thinking | 5 | 180 | 166 | 142 |
| 976 | Elderly | 37 | 179 | 323 | 529 |
| 976 | Comparative Advertising | 4 | 179 | 55 | 40 |
| 976 | psychotherapy | 9 | 179 | 912 | 1165 |
| 976 | data protection | 19 | 179 | 58 | 222 |
| 981 | sports administration | 8 | 178 | 131 | 139 |
| 983 | Phylogeny | 5 | 176 | 785 | 940 |
| 986 | Autonomous robots | 7 | 172 | 75 | 148 |
| 987 | infrared technology | 21 | 171 | 43 | 54 |
| 987 | Leisure | 7 | 171 | 209 | 238 |
| 987 | Genes | 7 | 171 | 858 | 921 |
| 993 | insurance | 19 | 168 | 91 | 196 |
| 993 | Landslides | 5 | 168 | 166 | 253 |
| 993 | children | 12 | 168 | 215 | 435 |
| 998 | Communication in marketing | 7 | 165 | 50 | 78 |
| 1000 | Turbulence | 11 | 164 | 83 | 118 |
| 1001 | Social interaction | 3 | 163 | 340 | 221 |
| 1002 | Moral Education | 6 | 162 | 55 | 39 |
| 1004 | Family Therapy | 13 | 161 | 326 | 467 |
| 1004 | Fluorescence | 8 | 161 | 198 | 181 |
| 1007 | government | 4 | 160 | 781 | 413 |
| 1008 | Plant tissue culture | 3 | 159 | 850 | 618 |
| 1008 | Plant cell culture | 3 | 159 | 762 | 612 |
| 1011 | Plant diseases | 10 | 158 | 1286 | 1572 |
| 1012 | Antioxidants | 2 | 157 | 1162 | 1045 |
| 1015 | Mobile Commerce | 6 | 156 | 164 | 33 |
| 1015 | freshwater biology | 6 | 156 | 748 | 778 |
| 1018 | Youth | 7 | 155 | 445 | 609 |
| 1020 | Ubiquitous computing | 9 | 154 | 46 | 26 |
| 1020 | toxicity testing | 1 | 154 | 1648 | 646 |
| 1020 | Catalysts | 8 | 154 | 404 | 498 |
| 1025 | Nitric oxide | 9 | 152 | 112 | 253 |
| 1026 | Gene library | 3 | 151 | 88 | 82 |
| 1026 | Sedimentary rocks | 4 | 151 | 603 | 537 |
| 1026 | Respiration | 5 | 151 | 1539 | 1647 |
| 1030 | Soil stabilization | 7 | 149 | 15 | 18 |
| 1031 | natural gas | 4 | 148 | 389 | 314 |
| 1035 | Learning disabilities | 14 | 146 | 356 | 598 |
| 1036 | alcoholism | 4 | 145 | 1664 | 1488 |
| 1039 | Molecular Imaging | 1 | 143 | 1378 | 848 |
| 1039 | Globalization | 5 | 143 | 422 | 415 |
| 1041 | Infertility | 2 | 142 | 1676 | 1254 |
| 1041 | fertility | 2 | 142 | 1783 | 1337 |
| 1045 | families | 13 | 141 | 366 | 583 |
| 1045 | Business communication | 6 | 141 | 102 | 89 |
| 1045 | listening | 7 | 141 | 6 | 10 |
| 1048 | Cardiovascular system | 5 | 140 | 1702 | 2383 |
| 1049 | Hospitality industry | 6 | 139 | 225 | 272 |
| 1052 | Lipid | 5 | 138 | 334 | 533 |
| 1054 | Cognitive Therapy | 5 | 137 | 529 | 552 |
| 1054 | behavior modification | 5 | 137 | 344 | 497 |
| 1054 | Food preferences | 13 | 137 | 119 | 395 |
| 1058 | Microstructure | 34 | 135 | 70 | 466 |
| 1060 | urban health | 1 | 134 | 658 | 290 |
| 1060 | Substance Abuse | 3 | 134 | 1823 | 1379 |
| 1062 | Social behavior | 6 | 133 | 929 | 1206 |
| 1062 | ethanol | 3 | 133 | 628 | 435 |
| 1062 | electrocatalysis | 3 | 133 | 101 | 48 |
| 1066 | curriculum | 6 | 131 | 49 | 40 |
| 1066 | motor skills | 1 | 131 | 436 | 164 |
| 1070 | Biomass | 1 | 127 | 1355 | 862 |
| 1072 | Bilingualism | 8 | 126 | 98 | 199 |
| 1072 | Human Capital | 3 | 126 | 277 | 196 |
| 1072 | Shock Waves | 3 | 126 | 220 | 125 |
| 1072 | Harbors | 6 | 126 | 56 | 52 |
| 1076 | urban population | 4 | 125 | 192 | 331 |
| 1076 | forced migration | 8 | 125 | 113 | 202 |
| 1076 | role | 3 | 125 | 458 | 480 |
| 1082 | Extreme environments | 4 | 124 | 207 | 272 |
| 1083 | Waterways | 5 | 122 | 54 | 52 |
| 1083 | Military psychology | 5 | 122 | 75 | 50 |
| 1083 | population geography | 8 | 122 | 177 | 315 |
| 1087 | cell interaction | 3 | 121 | 1517 | 1473 |
| 1088 | agricultural policy | 2 | 120 | 370 | 378 |
| 1092 | Middle East | 11 | 118 | 459 | 525 |
| 1093 | Coral reef biology | 1 | 117 | 339 | 200 |
| 1093 | ethnic groups | 7 | 117 | 188 | 246 |
| 1093 | Optoelectronic devices | 26 | 117 | 114 | 412 |
| 1093 | peace | 9 | 117 | 250 | 460 |
| 1099 | Fractional Calculus | 1 | 116 | 379 | 94 |
| 1101 | Pacific Islands | 5 | 115 | 236 | 145 |
| 1101 | Integration | 4 | 115 | 114 | 119 |
| 1104 | Harmonic Analysis | 7 | 114 | 64 | 138 |
| 1104 | Therapeutics | 7 | 114 | 1539 | 2394 |
| 1106 | Arab-Israeli Conflict | 8 | 113 | 20 | 9 |
| 1106 | Liver diseases | 4 | 113 | 1700 | 2218 |
| 1108 | Neuroplasticity | 7 | 112 | 159 | 381 |
| 1108 | civilization | 36 | 112 | 288 | 246 |
| 1110 | Scandinavia | 1 | 111 | 1336 | 531 |
| 1110 | Entomology | 7 | 111 | 1976 | 1951 |
| 1112 | Government policy | 10 | 110 | 48 | 209 |
| 1112 | Nonprofit organizations | 6 | 110 | 195 | 282 |
| 1115 | child behavior | 5 | 109 | 325 | 492 |
| 1117 | Nonlinear mechanics | 4 | 108 | 361 | 334 |
| 1117 | Radiation effects | 4 | 108 | 589 | 785 |
| 1121 | bioclimatology | 8 | 105 | 516 | 953 |
| 1121 | Water quality | 4 | 105 | 149 | 161 |
| 1121 | Documentation | 2 | 105 | 539 | 277 |
| 1121 | Water chemistry | 4 | 105 | 251 | 236 |
| 1125 | Professional ethics | 2 | 104 | 429 | 235 |
| 1125 | space environment | 2 | 104 | 356 | 248 |
| 1125 | Islam | 15 | 104 | 154 | 210 |
| 1125 | Tropical Medicine | 7 | 104 | 1554 | 1884 |
| 1131 | Cheminformatics | 5 | 103 | 260 | 537 |
| 1131 | Trace elements | 3 | 103 | 294 | 387 |
| 1131 | Developed countries | 5 | 103 | 119 | 234 |
| 1135 | Citizenship | 4 | 102 | 95 | 114 |
| 1135 | behavior therapy | 5 | 102 | 765 | 938 |
| 1139 | Memory disorders | 3 | 101 | 288 | 272 |
| 1141 | moral development | 4 | 100 | 56 | 63 |
| 1141 | DNS | 4 | 100 | 497 | 615 |
| 1143 | Social Entrepreneurship | 4 | 99 | 63 | 100 |
| 1143 | Seaweed | 5 | 99 | 520 | 727 |
| 1143 | drug therapy | 5 | 99 | 2476 | 3033 |
| 1146 | Demographic research | 2 | 98 | 193 | 252 |
| 1146 | Forest genetics | 4 | 98 | 300 | 255 |
| 1149 | Randomized Controlled Trials | 10 | 97 | 735 | 1139 |
| 1151 | nuclear magnetic resonance | 17 | 96 | 513 | 1107 |
| 1153 | Bibliometrics | 6 | 95 | 64 | 183 |
| 1153 | Algae | 5 | 95 | 699 | 883 |
| 1153 | Flow cytometry | 4 | 95 | 397 | 529 |
| 1157 | mental processes | 4 | 94 | 318 | 315 |
| 1160 | cell adhesion molecules | 1 | 93 | 1182 | 771 |
| 1160 | cytokines | 1 | 93 | 2646 | 1845 |
| 1160 | Cell communication | 1 | 93 | 1724 | 1174 |
| 1164 | wind erosion | 1 | 92 | 264 | 154 |
| 1164 | Europa | 1 | 92 | 1034 | 539 |
| 1166 | soil conservation | 9 | 90 | 378 | 942 |
| 1166 | Cell division | 5 | 90 | 462 | 747 |
| 1166 | Granular materials | 8 | 90 | 261 | 641 |
| 1166 | Microwave devices | 5 | 90 | 108 | 59 |
| 1170 | Respiratory Infections | 6 | 89 | 263 | 456 |
| 1170 | System design | 17 | 89 | 39 | 251 |
| 1174 | nuclear power | 5 | 88 | 455 | 324 |
| 1176 | Soil fertility | 3 | 87 | 396 | 559 |
| 1176 | disabilities | 5 | 87 | 647 | 848 |
| 1176 | textile fibers | 7 | 87 | 307 | 319 |
| 1176 | Egypt | 5 | 87 | 323 | 598 |
| 1176 | Soil ecology | 3 | 87 | 884 | 1096 |
| 1184 | Database Security | 7 | 86 | 24 | 47 |
| 1184 | automatic speech recognition | 5 | 86 | 81 | 162 |
| 1184 | deviant behavior | 4 | 86 | 257 | 236 |
| 1184 | Influenza | 5 | 86 | 216 | 375 |
| 1188 | Radiobiology | 5 | 85 | 1923 | 2048 |
| 1188 | Sarcopenia | 1 | 85 | 875 | 719 |
| 1188 | War and Society | 4 | 85 | 180 | 323 |
| 1188 | Structural Equation Modeling | 1 | 85 | 221 | 156 |
| 1188 | warfare | 4 | 85 | 265 | 407 |
| 1188 | Muscles | 1 | 85 | 1857 | 1365 |
| 1188 | Aquatic ecology | 2 | 85 | 1413 | 1095 |
| 1196 | Social work | 9 | 84 | 928 | 1284 |
| 1198 | Identity | 4 | 83 | 93 | 158 |
| 1198 | Self | 4 | 83 | 137 | 199 |
| 1198 | Insects | 2 | 83 | 2149 | 1504 |
| 1198 | Muscle contraction | 17 | 83 | 37 | 93 |
| 1204 | Religion and Culture | 3 | 82 | 321 | 179 |
| 1204 | Electrophysiology | 4 | 82 | 1335 | 1267 |
| 1204 | Attention | 11 | 82 | 1206 | 2497 |
| 1207 | air quality | 1 | 81 | 653 | 257 |
| 1207 | Shape Memory Alloys | 5 | 81 | 33 | 49 |
| 1207 | elasticity | 5 | 81 | 180 | 231 |
| 1207 | Shape memory polymers | 5 | 81 | 33 | 49 |
| 1207 | Shape Memory Effect | 5 | 81 | 33 | 49 |
| 1213 | Lightweight Materials | 4 | 80 | 20 | 24 |
| 1213 | Drug delivery devices | 6 | 80 | 67 | 349 |
| 1213 | Communications | 3 | 80 | 36 | 22 |
| 1213 | media | 3 | 80 | 36 | 22 |
| 1213 | chromatin | 2 | 80 | 234 | 305 |
| 1221 | Action Research | 3 | 79 | 253 | 153 |
| 1221 | sexual behavior | 4 | 79 | 661 | 867 |
| 1225 | Animal ecology | 4 | 78 | 1212 | 1425 |
| 1225 | Family | 11 | 78 | 510 | 1064 |
| 1225 | Communication in politics | 6 | 78 | 134 | 174 |
| 1225 | Approximation Theory | 8 | 78 | 258 | 322 |
| 1225 | sex crimes | 3 | 78 | 690 | 716 |
| 1225 | Kidney diseases | 7 | 78 | 797 | 1402 |
| 1232 | Aviation | 5 | 77 | 63 | 42 |
| 1232 | optical pattern recognition | 11 | 77 | 40 | 62 |
| 1232 | food industry | 11 | 77 | 193 | 632 |
| 1232 | packaging | 1 | 77 | 338 | 140 |
| 1238 | Vaccination | 3 | 76 | 288 | 410 |
| 1238 | homosexuality | 3 | 76 | 458 | 475 |
| 1238 | Fungi | 2 | 76 | 1494 | 1464 |
| 1238 | pharmaceutical industry | 7 | 76 | 372 | 631 |
| 1243 | Consumer Protection | 4 | 75 | 154 | 223 |
| 1246 | Air Conditioning | 5 | 74 | 132 | 159 |
| 1246 | Wetland ecology | 2 | 74 | 703 | 571 |
| 1246 | Wetland conservation | 2 | 74 | 496 | 399 |
| 1246 | Espionage | 2 | 74 | 71 | 6 |
| 1246 | Wetlands | 2 | 74 | 509 | 400 |
| 1251 | Consumer education | 4 | 73 | 269 | 510 |
| 1251 | Migration | 4 | 73 | 127 | 99 |
| 1255 | Ecosystem management | 6 | 72 | 518 | 949 |
| 1255 | Cyberterrorism | 3 | 72 | 29 | 62 |
| 1255 | circadian rhythm | 3 | 72 | 490 | 507 |
| 1255 | biological rhythms | 3 | 72 | 457 | 499 |
| 1255 | administrative agencies | 6 | 72 | 177 | 279 |
| 1262 | disease outbreaks | 3 | 71 | 700 | 974 |
| 1262 | Epidemics | 3 | 71 | 672 | 963 |
| 1262 | heating | 4 | 71 | 124 | 144 |
| 1262 | Women's health | 6 | 71 | 1099 | 1747 |
| 1267 | newspapers | 5 | 70 | 10 | 4 |
| 1267 | Sales Promotion | 4 | 70 | 62 | 74 |
| 1267 | Investments | 4 | 70 | 536 | 527 |
| 1272 | Superconductivity | 9 | 69 | 285 | 503 |
| 1272 | Wind power | 6 | 69 | 184 | 347 |
| 1277 | Qualitative Research | 1 | 68 | 1019 | 560 |
| 1277 | Paleopathology | 9 | 68 | 151 | 286 |
| 1277 | Information society | 2 | 68 | 211 | 159 |
| 1281 | Gastrointestinal diseases | 1 | 67 | 1619 | 936 |
| 1283 | Social welfare | 7 | 66 | 367 | 646 |
| 1283 | Neuroimmunology | 4 | 66 | 792 | 1424 |
| 1283 | Smoking | 2 | 66 | 1172 | 1243 |
| 1283 | Respiratory system | 4 | 66 | 667 | 1019 |
| 1283 | Mitochondria | 2 | 66 | 520 | 547 |
| 1283 | land degradation | 6 | 66 | 308 | 778 |
| 1283 | degradation | 6 | 66 | 308 | 778 |
| 1291 | Human biology | 5 | 65 | 550 | 776 |
| 1296 | Labor Supply | 2 | 64 | 85 | 118 |
| 1296 | design | 3 | 64 | 285 | 239 |
| 1296 | animal diseases | 2 | 64 | 722 | 665 |
| 1296 | Parkinson's disease | 3 | 64 | 271 | 418 |
| 1302 | Histocompatibility Testing | 2 | 63 | 979 | 770 |
| 1302 | Nanomanufacturing | 14 | 63 | 16 | 50 |
| 1302 | Access to Information | 4 | 63 | 96 | 306 |
| 1302 | Information dissemination | 4 | 63 | 96 | 306 |
| 1309 | Evidence-Based Medicine | 8 | 62 | 828 | 1696 |
| 1309 | Microbial Metabolism | 5 | 62 | 98 | 419 |
| 1312 | gene therapy | 3 | 61 | 1491 | 2032 |
| 1312 | neuronal plasticity | 2 | 61 | 484 | 550 |
| 1312 | isomerism | 6 | 61 | 214 | 376 |
| 1312 | Genetic therapy | 3 | 61 | 1625 | 2219 |
| 1312 | Chirality | 6 | 61 | 214 | 376 |
| 1317 | Cognitive Grammar | 3 | 60 | 71 | 91 |
| 1323 | Machining | 7 | 58 | 49 | 146 |
| 1323 | animals | 4 | 58 | 1358 | 1495 |
| 1323 | Cerebellum | 3 | 58 | 346 | 501 |
| 1323 | drug abuse | 1 | 58 | 1437 | 929 |
| 1323 | harm reduction | 1 | 58 | 502 | 323 |
| 1323 | Cerebellar ataxia | 3 | 58 | 346 | 501 |
| 1329 | Neuropharmacology | 4 | 57 | 589 | 989 |
| 1329 | Discrete geometry | 4 | 57 | 250 | 231 |
| 1329 | immigrants | 2 | 57 | 54 | 16 |
| 1329 | mammals | 1 | 57 | 2109 | 1442 |
| 1329 | police | 7 | 57 | 246 | 332 |
| 1335 | Paleoceanography | 2 | 56 | 281 | 425 |
| 1335 | Logic Programming | 7 | 56 | 187 | 282 |
| 1335 | school-to-work transition | 2 | 56 | 107 | 86 |
| 1335 | Mineral resources | 2 | 56 | 823 | 962 |
| 1335 | Alloys | 4 | 56 | 234 | 193 |
| 1335 | atmosphere | 5 | 56 | 709 | 1277 |
| 1344 | intergroup relations | 4 | 55 | 154 | 285 |
| 1344 | Interventional Radiography | 1 | 55 | 407 | 141 |
| 1344 | Video Games | 10 | 55 | 6 | 64 |
| 1344 | Endoscopic Surgery | 1 | 55 | 407 | 141 |
| 1344 | World Bank | 1 | 55 | 136 | 102 |
| 1344 | nuclear magnetic resonance spectroscopy | 13 | 55 | 349 | 923 |
| 1344 | Electromagnetic fields | 6 | 55 | 177 | 167 |
| 1354 | child mental health | 9 | 54 | 233 | 605 |
| 1354 | industrial relations | 5 | 54 | 716 | 932 |
| 1354 | Scanning electron microscopy | 3 | 54 | 171 | 198 |
| 1360 | Political Participation | 2 | 53 | 452 | 404 |
| 1360 | Human-robot interaction | 2 | 53 | 78 | 83 |
| 1360 | Food Security | 4 | 53 | 142 | 390 |
| 1360 | child abuse | 4 | 53 | 846 | 1448 |
| 1360 | eugenics | 4 | 53 | 613 | 948 |
| 1360 | sports injuries | 5 | 53 | 472 | 736 |
| 1367 | Crisis management | 2 | 52 | 260 | 220 |
| 1367 | Electromagnetic waves | 4 | 52 | 175 | 264 |
| 1367 | disaster relief | 3 | 52 | 241 | 372 |
| 1372 | environmental remediation | 4 | 51 | 290 | 592 |
| 1372 | body temperature | 4 | 51 | 439 | 732 |
| 1372 | Psychiatric hospitals | 1 | 51 | 723 | 498 |
| 1372 | Stress | 2 | 51 | 414 | 512 |
| 1379 | Feminism | 4 | 50 | 525 | 617 |
| 1379 | Classification | 1 | 50 | 644 | 359 |
| 1385 | social justice | 2 | 49 | 553 | 314 |
| 1385 | Animal genetics | 1 | 49 | 1139 | 924 |
| 1385 | glycoproteins | 2 | 49 | 754 | 944 |
| 1385 | Glycoconjugates | 2 | 49 | 754 | 944 |
| 1385 | Carbohydrates | 2 | 49 | 719 | 873 |
| 1385 | glycolipids | 2 | 49 | 754 | 944 |
| 1394 | Noise | 3 | 48 | 165 | 125 |
| 1394 | Leukemia | 4 | 48 | 1452 | 1951 |
| 1394 | graph | 8 | 48 | 164 | 209 |
| 1394 | Minerals | 3 | 48 | 888 | 1225 |
| 1394 | traffic safety | 5 | 48 | 233 | 453 |
| 1403 | Oligosaccharide | 1 | 47 | 722 | 720 |
| 1403 | Scotland | 2 | 47 | 189 | 116 |
| 1403 | Protein engineering | 3 | 47 | 286 | 505 |
| 1403 | Structure-activity relationship | 3 | 47 | 479 | 632 |
| 1403 | molecular design | 3 | 47 | 320 | 506 |
| 1403 | sports equipment | 10 | 47 | 10 | 24 |
| 1409 | River Engineering | 2 | 46 | 110 | 72 |
| 1409 | Flood forecasting | 3 | 46 | 106 | 237 |
| 1409 | Flood control | 3 | 46 | 295 | 391 |
| 1409 | Government agencies | 3 | 46 | 42 | 72 |
| 1409 | kidney | 2 | 46 | 114 | 189 |
| 1419 | Hydraulic machinery | 9 | 45 | 46 | 126 |
| 1419 | vascular diseases | 2 | 45 | 1170 | 1498 |
| 1419 | weather | 5 | 45 | 460 | 1086 |
| 1422 | Phytoremediation | 2 | 44 | 446 | 561 |
| 1422 | Bioreactors | 2 | 44 | 446 | 561 |
| 1422 | Plant breeding | 1 | 44 | 1716 | 1344 |
| 1422 | nucleotides | 1 | 44 | 737 | 364 |
| 1422 | biological monitoring | 3 | 44 | 584 | 1032 |
| 1422 | Breeding | 1 | 44 | 2282 | 1965 |
| 1432 | Molecular dynamics | 6 | 43 | 6 | 18 |
| 1432 | Industrial Policy | 2 | 43 | 708 | 784 |
| 1432 | landscapes | 1 | 43 | 475 | 299 |
| 1432 | Protozoa | 2 | 43 | 655 | 790 |
| 1436 | Financial Institutions | 4 | 42 | 363 | 645 |
| 1436 | Antibodies | 1 | 42 | 1480 | 1270 |
| 1436 | Antigens | 1 | 42 | 1890 | 1638 |
| 1441 | Magnetic Resonance Spectroscopy | 4 | 41 | 1350 | 1744 |
| 1441 | X-rays | 5 | 41 | 617 | 980 |
| 1441 | Mountains | 2 | 41 | 642 | 512 |
| 1441 | fusion reactors | 5 | 41 | 427 | 511 |
| 1441 | phototherapy | 1 | 41 | 586 | 205 |
| 1447 | Heart Failure | 1 | 40 | 897 | 990 |
| 1447 | Welding | 2 | 40 | 459 | 259 |
| 1447 | Outdoor Education | 3 | 40 | 71 | 103 |
| 1447 | DNA repair | 1 | 40 | 674 | 646 |
| 1447 | winds | 3 | 40 | 119 | 138 |
| 1447 | cycles | 2 | 40 | 235 | 144 |
| 1456 | Securities | 3 | 39 | 335 | 639 |
| 1456 | Bacteria | 1 | 39 | 829 | 992 |
| 1456 | coastal areas | 1 | 39 | 176 | 112 |
| 1456 | coastal archaeology | 1 | 39 | 176 | 112 |
| 1456 | islands | 1 | 39 | 176 | 112 |
| 1468 | Developmental Neurobiology | 3 | 38 | 682 | 1008 |
| 1468 | Eastern Europe | 10 | 38 | 460 | 928 |
| 1468 | Endocrine system | 2 | 38 | 1389 | 610 |
| 1468 | liver | 1 | 38 | 770 | 653 |
| 1468 | conflict management | 3 | 38 | 302 | 528 |
| 1475 | radiocarbon dating | 1 | 37 | 197 | 122 |
| 1475 | Monomers | 1 | 37 | 182 | 101 |
| 1475 | Information management | 2 | 37 | 121 | 157 |
| 1475 | Work | 3 | 37 | 388 | 515 |
| 1475 | DNA | 2 | 37 | 975 | 1129 |
| 1485 | Disability Law | 2 | 36 | 242 | 295 |
| 1485 | Digital humanities | 1 | 36 | 235 | 155 |
| 1485 | Educational measurement | 5 | 36 | 144 | 261 |
| 1485 | Safety management | 4 | 36 | 559 | 964 |
| 1485 | Drug discovery | 4 | 36 | 251 | 663 |
| 1493 | Job satisfaction | 2 | 35 | 152 | 348 |
| 1493 | Neurodevelopmental disorders | 2 | 35 | 82 | 50 |
| 1493 | job stress | 2 | 35 | 152 | 348 |
| 1501 | Religion and Psychology | 4 | 34 | 454 | 767 |
| 1501 | Korea | 6 | 34 | 226 | 459 |
| 1501 | Hearing | 3 | 34 | 831 | 1172 |
| 1501 | telecommunication in education | 3 | 34 | 63 | 45 |
| 1507 | Ornithology | 1 | 33 | 1798 | 1386 |
| 1507 | monitoring | 4 | 33 | 267 | 489 |
| 1507 | land tenure | 1 | 33 | 170 | 161 |
| 1507 | Land reform | 1 | 33 | 178 | 161 |
| 1507 | cardiac catheterization | 1 | 33 | 1611 | 1336 |
| 1507 | values | 4 | 33 | 190 | 165 |
| 1507 | crime | 1 | 33 | 1218 | 879 |
| 1507 | Birds | 1 | 33 | 2154 | 1638 |
| 1507 | Peasants | 1 | 33 | 222 | 208 |
| 1521 | Religion and Sociology | 4 | 32 | 225 | 239 |
| 1524 | Pesticides | 1 | 31 | 1437 | 1264 |
| 1525 | Heritage Tourism | 2 | 30 | 169 | 248 |
| 1525 | cultural tourism | 2 | 30 | 162 | 248 |
| 1525 | Continental shelf | 2 | 30 | 604 | 861 |
| 1525 | Educational evaluation | 2 | 30 | 245 | 288 |
| 1525 | hygiene | 2 | 30 | 826 | 1166 |
| 1533 | Marine invertebrates | 5 | 29 | 143 | 359 |
| 1533 | Matroids | 4 | 29 | 211 | 356 |
| 1533 | social science | 1 | 29 | 345 | 429 |
| 1533 | Geospatial data | 2 | 29 | 28 | 80 |
| 1542 | Cell cycle | 1 | 28 | 729 | 789 |
| 1542 | cell proliferation | 1 | 28 | 806 | 838 |
| 1542 | Trademarks | 3 | 28 | 108 | 231 |
| 1542 | ecotourism | 2 | 28 | 326 | 585 |
| 1542 | Basal ganglia | 1 | 28 | 2 | 1 |
| 1542 | Money | 3 | 28 | 353 | 773 |
| 1542 | muscle strength | 2 | 28 | 103 | 122 |
| 1555 | Nutritional support | 2 | 27 | 277 | 515 |
| 1555 | Program Evaluation | 4 | 27 | 66 | 209 |
| 1555 | Social Systems | 6 | 27 | 84 | 275 |
| 1555 | Enteral nutrition | 1 | 27 | 1931 | 2121 |
| 1555 | Parenteral nutrition | 1 | 27 | 2252 | 2416 |
| 1555 | Noise control | 12 | 27 | 75 | 55 |
| 1555 | Formal Languages | 3 | 27 | 252 | 264 |
| 1555 | Smart Cities | 3 | 27 | 6 | 31 |
| 1555 | School Improvement Programs | 2 | 27 | 44 | 72 |
| 1555 | irrigation | 6 | 27 | 243 | 624 |
| 1555 | drainage | 6 | 27 | 181 | 448 |
| 1555 | primary prevention | 1 | 27 | 989 | 1076 |
| 1555 | evaluation | 4 | 27 | 127 | 309 |
| 1555 | Digestive system diseases | 2 | 27 | 1521 | 2077 |
| 1578 | Organic Geochemistry | 3 | 26 | 454 | 973 |
| 1578 | Geobiology | 2 | 26 | 702 | 1053 |
| 1578 | rare diseases | 1 | 26 | 1482 | 1543 |
| 1578 | place marketing | 1 | 26 | 237 | 375 |
| 1578 | Consciousness | 3 | 26 | 548 | 885 |
| 1578 | Bones | 1 | 26 | 1864 | 2023 |
| 1586 | Herbal medicine | 1 | 25 | 1534 | 1934 |
| 1586 | Art and Design | 2 | 25 | 35 | 42 |
| 1586 | Postcolonialism | 6 | 25 | 55 | 143 |
| 1586 | psychophysics | 3 | 25 | 377 | 571 |
| 1586 | Federal government | 2 | 25 | 222 | 280 |
| 1586 | European Union | 2 | 25 | 232 | 305 |
| 1596 | soil pollution | 3 | 24 | 642 | 1243 |
| 1596 | Labor Unions | 1 | 24 | 584 | 336 |
| 1596 | correctional psychology | 1 | 24 | 447 | 538 |
| 1596 | Cell survival | 1 | 24 | 559 | 715 |
| 1596 | Semantic web | 2 | 24 | 240 | 376 |
| 1596 | Learning strategies | 3 | 24 | 17 | 60 |
| 1596 | Phytotherapy | 2 | 24 | 1336 | 2057 |
| 1596 | Eigenvalues | 4 | 24 | 228 | 147 |
| 1596 | molecular chaperones | 1 | 24 | 630 | 719 |
| 1596 | Population Dynamics | 7 | 24 | 82 | 443 |
| 1609 | Church History | 1 | 23 | 259 | 51 |
| 1609 | men | 2 | 23 | 455 | 695 |
| 1614 | Freezing | 2 | 22 | 546 | 644 |
| 1614 | Adventure education | 2 | 22 | 73 | 132 |
| 1614 | asymmetric warfare | 2 | 22 | 34 | 34 |
| 1614 | Groundwater | 1 | 22 | 1373 | 1407 |
| 1614 | Foodborne diseases | 1 | 22 | 630 | 738 |
| 1614 | Transplantation | 3 | 22 | 1594 | 2569 |
| 1614 | Heterocyclic compounds | 3 | 22 | 1220 | 1586 |
| 1626 | environmental control | 1 | 21 | 563 | 661 |
| 1626 | press | 5 | 21 | 50 | 70 |
| 1630 | Urbanization | 1 | 20 | 612 | 501 |
| 1630 | Drying | 2 | 20 | 553 | 903 |
| 1630 | peptides | 3 | 20 | 1148 | 1902 |
| 1630 | Africa | 1 | 20 | 3323 | 2704 |
| 1630 | Eurasia | 1 | 20 | 514 | 496 |
| 1630 | Central Asia | 1 | 20 | 579 | 519 |
| 1630 | Agricultural systems | 1 | 20 | 703 | 1023 |
| 1630 | carbonate rocks | 1 | 20 | 298 | 235 |
| 1641 | Food texture | 1 | 19 | 398 | 496 |
| 1641 | Fluorescence spectroscopy | 2 | 19 | 436 | 746 |
| 1641 | Sintering | 1 | 19 | 102 | 71 |
| 1641 | Semiotics | 12 | 19 | 112 | 399 |
| 1641 | Semigroups | 1 | 19 | 560 | 335 |
| 1641 | Communist countries | 4 | 19 | 190 | 412 |
| 1641 | particle beams | 3 | 19 | 240 | 440 |
| 1641 | Ion channels | 1 | 19 | 219 | 287 |
| 1641 | anesthesia | 1 | 19 | 1338 | 1092 |
| 1658 | Portfolio Management | 3 | 18 | 378 | 560 |
| 1658 | Emulsions | 3 | 18 | 418 | 772 |
| 1658 | Astrocytes | 1 | 18 | 1011 | 1435 |
| 1658 | Social support | 1 | 18 | 443 | 614 |
| 1658 | Social environment | 1 | 18 | 524 | 699 |
| 1658 | population policy | 1 | 18 | 342 | 407 |
| 1658 | Shipping | 3 | 18 | 81 | 157 |
| 1669 | Antiviral agents | 1 | 17 | 757 | 984 |
| 1669 | Cardiopulmonary Resuscitation | 3 | 17 | 181 | 288 |
| 1669 | Constructivism | 1 | 17 | 141 | 115 |
| 1669 | cardiac arrest | 3 | 17 | 181 | 288 |
| 1669 | healthcare industry | 3 | 17 | 31 | 156 |
| 1669 | Post-traumatic stress disorder | 2 | 17 | 1146 | 1869 |
| 1669 | smart structures | 3 | 17 | 93 | 145 |
| 1676 | Knot Theory | 6 | 16 | 146 | 271 |
| 1676 | phytopathogenic bacteria | 1 | 16 | 532 | 759 |
| 1676 | Urban Anthropology | 1 | 16 | 380 | 450 |
| 1676 | child sexual abuse | 1 | 16 | 349 | 474 |
| 1676 | Television | 5 | 16 | 67 | 96 |
| 1676 | geological modeling | 1 | 16 | 1100 | 1226 |
| 1676 | Oxidation | 1 | 16 | 385 | 468 |
| 1676 | Statistical models | 1 | 16 | 247 | 271 |
| 1676 | Yeast | 1 | 16 | 931 | 1174 |
| 1676 | Digital Audio Broadcasting | 2 | 16 | 23 | 48 |
| 1692 | Indoor air quality | 1 | 15 | 237 | 242 |
