| 1 | Physics | 96 | 2.7K | 2698 | 3533 |
| 2 | Science | 79 | 2.6K | 2984 | 3689 |
| 3 | Nuclear Physics | 125 | 2.2K | 1153 | 1248 |
| 4 | Chemistry | 156 | 2.0K | 1987 | 3134 |
| 5 | Quantum Gravity | 61 | 1.5K | 764 | 749 |
| 6 | Oncology | 14 | 1.5K | 1250 | 1019 |
| 7 | Biomedical Engineering | 27 | 1.4K | 2070 | 1292 |
| 8 | Biology | 43 | 1.3K | 3970 | 4729 |
| 9 | Electrochemistry | 105 | 1.3K | 791 | 1111 |
| 10 | Nanotechnology | 61 | 1.3K | 1452 | 1831 |
| 11 | Molecular Biology | 73 | 1.2K | 2403 | 3473 |
| 12 | Chemical Engineering | 48 | 1.2K | 1520 | 1701 |
| 13 | Materials | 94 | 1.1K | 1570 | 2293 |
| 14 | Statistics | 8 | 1.1K | 2086 | 616 |
| 15 | Biochemistry | 65 | 1.1K | 3113 | 3799 |
| 16 | Energy Conversion | 11 | 1.0K | 728 | 557 |
| 16 | Energy Storage | 11 | 1.0K | 730 | 253 |
| 18 | Building Materials | 26 | 1.0K | 605 | 529 |
| 19 | Materials Science | 56 | 988 | 1432 | 1787 |
| 20 | Natural history | 6 | 974 | 3960 | 3541 |
| 21 | Medicine | 87 | 936 | 2822 | 4992 |
| 22 | Biophysics | 45 | 917 | 2137 | 2303 |
| 23 | Research | 75 | 848 | 2445 | 3967 |
| 24 | Energy Harvesting | 4 | 780 | 460 | 208 |
| 25 | Analytical Chemistry | 15 | 732 | 2766 | 1939 |
| 26 | Biochemical Engineering | 15 | 690 | 1819 | 2020 |
| 27 | Optics | 50 | 683 | 1748 | 1610 |
| 28 | Biocompatible Materials | 30 | 679 | 1511 | 2058 |
| 29 | Environmental Health | 18 | 671 | 2921 | 2611 |
| 30 | Cell differentiation | 7 | 643 | 1451 | 1082 |
| 31 | Petroleum Engineering | 37 | 639 | 167 | 184 |
| 32 | Mathematics | 128 | 635 | 1277 | 1894 |
| 33 | Education | 66 | 627 | 780 | 943 |
| 34 | Signal Processing | 15 | 621 | 953 | 511 |
| 35 | Ecology | 22 | 610 | 3280 | 3694 |
| 36 | Astrophysics | 39 | 603 | 1427 | 1739 |
| 37 | Medical Laboratory Science | 7 | 586 | 1698 | 892 |
| 38 | Hypertension | 2 | 547 | 2415 | 1102 |
| 38 | Cardiovascular system | 2 | 547 | 2340 | 1127 |
| 40 | Pollution | 30 | 544 | 2314 | 3273 |
| 41 | Artificial Intelligence | 31 | 520 | 1384 | 1500 |
| 42 | fuel cells | 13 | 488 | 690 | 704 |
| 43 | Biotechnology | 31 | 480 | 2668 | 3790 |
| 44 | Nanostructured Materials | 23 | 474 | 1524 | 1701 |
| 45 | Astronomy | 45 | 467 | 1134 | 1740 |
| 46 | environmental protection | 16 | 462 | 1815 | 1734 |
| 47 | Surface Chemistry | 20 | 457 | 1967 | 2088 |
| 48 | Energy Policy | 13 | 450 | 1490 | 1576 |
| 49 | peace | 14 | 435 | 183 | 179 |
| 50 | Statistical physics | 37 | 424 | 1461 | 1817 |
| 51 | Sociology | 18 | 412 | 1331 | 1241 |
| 52 | Condensed Matter | 22 | 410 | 1905 | 1902 |
| 53 | Environmental Policy | 16 | 409 | 1583 | 2037 |
| 54 | Bacterial infections | 14 | 397 | 321 | 585 |
| 55 | Manufacturing Processes | 22 | 391 | 952 | 1099 |
| 56 | Spectrum analysis | 23 | 389 | 2238 | 2512 |
| 56 | gene mapping | 9 | 389 | 1444 | 1278 |
| 58 | Colloids | 15 | 385 | 2212 | 2331 |
| 59 | Solid State Physics | 24 | 376 | 1986 | 2106 |
| 59 | Renewable Energy Sources | 16 | 376 | 1217 | 2025 |
| 61 | environmental pollution | 21 | 374 | 2191 | 3002 |
| 62 | Genetics | 5 | 368 | 4042 | 2958 |
| 63 | Bioengineering | 17 | 355 | 2409 | 3208 |
| 64 | Infections | 9 | 353 | 801 | 877 |
| 65 | Stem cells | 3 | 344 | 2028 | 1046 |
| 66 | Environment | 9 | 339 | 3856 | 4331 |
| 67 | nanoscience | 10 | 336 | 1999 | 1974 |
| 68 | educational planning | 5 | 323 | 293 | 143 |
| 69 | Telecommunication Systems | 21 | 321 | 493 | 571 |
| 70 | coal | 12 | 315 | 867 | 1037 |
| 71 | Genetic engineering | 11 | 312 | 1345 | 1521 |
| 72 | War and Society | 3 | 311 | 228 | 141 |
| 72 | warfare | 2 | 311 | 429 | 162 |
| 72 | marketing | 4 | 311 | 1869 | 1042 |
| 72 | international cooperation | 3 | 311 | 668 | 253 |
| 76 | Catalysis | 16 | 310 | 2156 | 2570 |
| 77 | DNA polymerases | 1 | 309 | 955 | 542 |
| 78 | Developing countries | 21 | 303 | 867 | 1151 |
| 79 | Environmental Management | 9 | 302 | 2057 | 2123 |
| 80 | Engineering Geology | 30 | 300 | 394 | 800 |
| 81 | Production Engineering | 17 | 291 | 856 | 828 |
| 82 | Technology | 17 | 283 | 2301 | 2393 |
| 83 | Engineering | 30 | 273 | 1618 | 2079 |
| 84 | Zeolites | 4 | 269 | 938 | 582 |
| 85 | Environmental Engineering | 16 | 265 | 2151 | 2745 |
| 86 | Fiber Optics | 12 | 255 | 199 | 103 |
| 87 | Economic History | 28 | 253 | 1349 | 1574 |
| 88 | Soil Mechanics | 19 | 248 | 482 | 721 |
| 89 | Optical materials | 10 | 244 | 1809 | 1985 |
| 90 | Robotics | 15 | 243 | 786 | 939 |
| 91 | Industrial Safety | 3 | 241 | 1455 | 532 |
| 92 | Biosensors | 7 | 240 | 961 | 1223 |
| 92 | Cell death | 3 | 240 | 1501 | 1120 |
| 94 | management | 18 | 237 | 1643 | 2185 |
| 95 | Solar Energy | 7 | 235 | 1345 | 1312 |
| 95 | Bioelectronics | 5 | 235 | 997 | 1143 |
| 97 | Public Administration | 18 | 232 | 571 | 608 |
| 98 | particles | 6 | 228 | 754 | 437 |
| 99 | Mechanical Engineering | 16 | 225 | 1373 | 1148 |
| 100 | Optoelectronics | 7 | 220 | 346 | 99 |
| 101 | Structural Engineering | 17 | 219 | 852 | 977 |
| 102 | Public Health | 31 | 214 | 2275 | 4500 |
| 103 | Geophysics | 20 | 208 | 1919 | 2703 |
| 104 | Water | 10 | 207 | 1673 | 2352 |
| 105 | Environmental monitoring | 12 | 201 | 2511 | 3430 |
| 105 | nucleic acids | 3 | 201 | 2144 | 1722 |
| 107 | Genetic regulation | 1 | 200 | 2342 | 1189 |
| 107 | cloning | 1 | 200 | 1377 | 812 |
| 109 | Cosmology | 9 | 199 | 1038 | 771 |
| 110 | Cell Biology | 8 | 194 | 3434 | 4125 |
| 111 | Composite Materials | 12 | 192 | 1675 | 2314 |
| 112 | Electrical Engineering | 19 | 188 | 1779 | 1612 |
| 113 | Economics | 47 | 187 | 1346 | 2499 |
| 114 | United States | 18 | 185 | 2666 | 3733 |
| 115 | International Relations | 19 | 184 | 465 | 470 |
| 116 | Sustainable Development | 8 | 183 | 1442 | 1554 |
| 116 | Electronics | 15 | 183 | 2106 | 2211 |
| 116 | Economic Development | 9 | 183 | 1103 | 1351 |
| 119 | Teaching | 7 | 181 | 1296 | 908 |
| 120 | Ocean Engineering | 8 | 176 | 1218 | 1231 |
| 121 | Pharmaceutical Chemistry | 18 | 174 | 2133 | 3509 |
| 122 | Pharmacology | 10 | 173 | 4134 | 4744 |
| 123 | Immunology | 7 | 172 | 3389 | 3640 |
| 124 | nuclear astrophysics | 5 | 170 | 470 | 400 |
| 125 | Political Science | 16 | 166 | 907 | 908 |
| 125 | Granular materials | 4 | 166 | 538 | 350 |
| 127 | Rock Mechanics | 19 | 158 | 371 | 719 |
| 127 | Telecommunications | 13 | 158 | 253 | 312 |
| 127 | Economic Assistance | 7 | 158 | 482 | 680 |
| 130 | Gerontology | 5 | 156 | 1885 | 1270 |
| 130 | Asia | 20 | 156 | 1048 | 1469 |
| 130 | Metals | 7 | 156 | 1929 | 1761 |
| 133 | enzymes | 6 | 155 | 1303 | 1430 |
| 134 | Polymers | 18 | 154 | 2660 | 3639 |
| 135 | Data Mining | 11 | 151 | 879 | 1346 |
| 136 | Solid State Chemistry | 4 | 145 | 2639 | 1938 |
| 136 | Solitons | 13 | 145 | 420 | 735 |
| 136 | Fractals | 13 | 145 | 525 | 833 |
| 136 | Chaos | 13 | 145 | 420 | 735 |
| 140 | Detectors | 8 | 142 | 543 | 292 |
| 141 | Drug delivery systems | 2 | 141 | 2288 | 1542 |
| 141 | Nanostructures | 11 | 141 | 1362 | 2053 |
| 141 | Carbon | 7 | 141 | 1058 | 1543 |
| 144 | Numerical Analysis | 21 | 139 | 1019 | 1541 |
| 144 | Inclusive Education | 5 | 139 | 97 | 78 |
| 146 | infection | 7 | 138 | 1391 | 1704 |
| 147 | Neurology | 7 | 137 | 4676 | 5304 |
| 148 | Integrated Circuits | 9 | 135 | 419 | 200 |
| 149 | Computer-Aided Design | 6 | 134 | 989 | 915 |
| 150 | Computer Science | 9 | 129 | 1492 | 1331 |
| 151 | Social Sciences | 20 | 128 | 1664 | 2181 |
| 151 | Development | 5 | 128 | 727 | 854 |
| 153 | Psychology | 7 | 127 | 4368 | 4378 |
| 154 | Nanoparticles | 6 | 126 | 1648 | 1785 |
| 155 | thinking | 2 | 125 | 403 | 163 |
| 155 | Creativity | 2 | 125 | 405 | 176 |
| 157 | Europe | 29 | 124 | 1182 | 2498 |
| 158 | Cell division | 1 | 122 | 1222 | 528 |
| 158 | Integration | 4 | 122 | 115 | 91 |
| 158 | Eurasia | 15 | 122 | 38 | 110 |
| 161 | data protection | 5 | 120 | 422 | 287 |
| 162 | Nursing | 14 | 118 | 942 | 1209 |
| 162 | world | 2 | 118 | 1094 | 945 |
| 162 | Biodiversity | 1 | 118 | 4245 | 2162 |
| 165 | Operations Research | 12 | 117 | 1363 | 1864 |
| 166 | Immunity | 6 | 115 | 1737 | 2724 |
| 167 | Immunotherapy | 4 | 114 | 2113 | 2234 |
| 167 | polymerization | 12 | 114 | 2663 | 3434 |
| 169 | Mineral resources | 4 | 113 | 524 | 533 |
| 170 | Database Management | 2 | 112 | 1126 | 755 |
| 170 | Molecular cloning | 10 | 112 | 892 | 1463 |
| 170 | Genetic recombination | 10 | 112 | 866 | 1450 |
| 170 | Recombinant DNA | 10 | 112 | 963 | 1557 |
| 174 | sanitation | 3 | 111 | 1909 | 2190 |
| 174 | Measurement | 8 | 111 | 822 | 1066 |
| 176 | Wireless Communication Systems | 13 | 110 | 1124 | 1477 |
| 177 | Nonlinear Dynamics | 11 | 106 | 1461 | 2001 |
| 178 | Microbiology | 10 | 104 | 5109 | 7480 |
| 178 | Earthquake Engineering | 8 | 104 | 925 | 1210 |
| 178 | Comparative Education | 8 | 104 | 112 | 91 |
| 178 | dietary supplements | 3 | 104 | 958 | 811 |
| 178 | energy development | 2 | 104 | 1389 | 930 |
| 183 | Genomics | 16 | 100 | 1785 | 3726 |
| 184 | Archaeology | 8 | 99 | 977 | 1049 |
| 184 | Mental Disorders | 4 | 99 | 3464 | 3478 |
| 184 | Cell cycle | 2 | 99 | 497 | 296 |
| 184 | cell proliferation | 2 | 99 | 559 | 322 |
| 188 | Psychiatry | 3 | 98 | 5541 | 4821 |
| 188 | Electrochemical Analysis | 6 | 98 | 1325 | 1531 |
| 188 | Multimedia Systems | 5 | 98 | 1589 | 1161 |
| 188 | lasers | 7 | 98 | 1588 | 1439 |
| 192 | Mathematical Physics | 14 | 97 | 1881 | 2337 |
| 192 | Mental Health | 1 | 97 | 3470 | 1499 |
| 192 | Mental Health Services | 1 | 97 | 2680 | 1191 |
| 192 | System analysis | 7 | 97 | 2033 | 2247 |
| 196 | energy conservation | 7 | 95 | 1509 | 2437 |
| 196 | miniaturization | 7 | 95 | 1494 | 2320 |
| 198 | Humanities | 11 | 92 | 1051 | 863 |
| 198 | Toxicology | 9 | 92 | 3717 | 5495 |
| 198 | Structural design | 9 | 92 | 482 | 789 |
| 198 | computer networks | 12 | 92 | 1407 | 2158 |
| 202 | Neural circuitry | 10 | 91 | 1228 | 2230 |
| 202 | Multilingualism | 8 | 91 | 108 | 201 |
| 204 | Medical genetics | 8 | 89 | 2313 | 3773 |
| 204 | Product Design | 5 | 89 | 463 | 391 |
| 204 | Molecules | 10 | 89 | 1068 | 1383 |
| 207 | Clinical Chemistry | 1 | 87 | 5283 | 3633 |
| 208 | Production Management | 5 | 86 | 963 | 1469 |
| 209 | Tunneling | 3 | 85 | 367 | 429 |
| 209 | underground construction | 3 | 85 | 367 | 429 |
| 209 | biological evolution | 5 | 85 | 1996 | 2754 |
| 212 | Diagnostic Imaging | 6 | 84 | 1934 | 2177 |
| 212 | concrete | 8 | 84 | 688 | 1280 |
| 212 | Fuzzy systems | 11 | 84 | 881 | 1295 |
| 215 | Structural dynamics | 4 | 83 | 1075 | 1284 |
| 216 | Mining Engineering | 10 | 82 | 281 | 523 |
| 216 | Photonics | 11 | 82 | 1097 | 1996 |
| 216 | International Education | 8 | 82 | 81 | 185 |
| 216 | civilization | 12 | 82 | 734 | 301 |
| 220 | Mechatronics | 5 | 81 | 605 | 657 |
| 220 | data collection | 9 | 81 | 642 | 1319 |
| 222 | drug resistance | 4 | 80 | 715 | 848 |
| 222 | Chromosome mapping | 8 | 80 | 1404 | 2563 |
| 224 | Systems Engineering | 8 | 79 | 1564 | 1876 |
| 224 | Rheumatology | 3 | 79 | 1605 | 1603 |
| 224 | Logic | 6 | 79 | 363 | 281 |
| 224 | Computational Biology | 12 | 79 | 1756 | 3285 |
| 224 | arthritis | 1 | 79 | 2363 | 1915 |
| 224 | mathematical analysis | 27 | 79 | 1077 | 1900 |
| 230 | Human-Computer Interaction | 4 | 78 | 1571 | 1551 |
| 230 | solar power | 3 | 78 | 1010 | 1250 |
| 230 | medical education | 3 | 78 | 2535 | 1847 |
| 230 | solar cells | 3 | 78 | 1118 | 1366 |
| 230 | Microwaves | 9 | 78 | 762 | 741 |
| 235 | Municipal Engineering | 3 | 77 | 435 | 363 |
| 235 | Waste management | 3 | 77 | 1730 | 1416 |
| 235 | environmental issues | 3 | 77 | 512 | 565 |
| 238 | Computer Graphics | 5 | 76 | 1549 | 1689 |
| 238 | Technological Innovations | 3 | 76 | 1236 | 1096 |
| 238 | Cancer | 12 | 76 | 2509 | 4757 |
| 241 | Oxidative stress | 2 | 75 | 1727 | 1766 |
| 241 | Cellular senescence | 2 | 75 | 1129 | 1157 |
| 241 | Inflammation | 2 | 75 | 1964 | 1817 |
| 241 | construction industry | 3 | 75 | 162 | 90 |
| 245 | Sociolinguistics | 7 | 74 | 288 | 370 |
| 245 | Ethnic relations | 11 | 74 | 240 | 370 |
| 247 | Dynamics | 7 | 73 | 1556 | 1655 |
| 247 | Spine | 1 | 73 | 1358 | 1031 |
| 249 | Hydraulic Engineering | 2 | 71 | 1630 | 1203 |
| 249 | air quality management | 8 | 71 | 239 | 684 |
| 249 | Water pollution | 5 | 71 | 2583 | 3583 |
| 249 | global environmental change | 1 | 71 | 1755 | 1296 |
| 249 | energy resources | 2 | 71 | 1951 | 2282 |
| 249 | Australia | 6 | 71 | 1611 | 1872 |
| 255 | Anthropology | 5 | 70 | 1533 | 1452 |
| 255 | Human evolution | 4 | 70 | 413 | 595 |
| 257 | Mechanics | 4 | 69 | 1460 | 1192 |
| 258 | Bioinformatics | 11 | 68 | 1251 | 2523 |
| 258 | machinery | 4 | 68 | 835 | 809 |
| 260 | Drug targeting | 1 | 67 | 724 | 492 |
| 260 | Radio wave propagation | 6 | 67 | 643 | 741 |
| 260 | drug evaluation | 1 | 67 | 2776 | 1686 |
| 263 | probabilities | 4 | 66 | 1352 | 1038 |
| 264 | Microelectronics | 8 | 65 | 1422 | 2321 |
| 264 | Language Policy | 6 | 65 | 39 | 115 |
| 264 | microwave antennas | 5 | 65 | 364 | 376 |
| 264 | vibration | 7 | 65 | 977 | 1381 |
| 264 | Language planning | 6 | 65 | 82 | 80 |
| 264 | Fluorescence | 3 | 65 | 530 | 398 |
| 270 | Pharmaceutical Technology | 3 | 64 | 1862 | 2003 |
| 270 | Oncogenes | 2 | 64 | 1700 | 2167 |
| 270 | mass transfer | 5 | 64 | 1548 | 2041 |
| 270 | Molecular Spectroscopy | 6 | 64 | 1571 | 2127 |
| 274 | Materials Engineering | 2 | 63 | 1156 | 617 |
| 274 | Sustainable Engineering | 5 | 63 | 1525 | 2235 |
| 276 | Nationalism | 10 | 62 | 127 | 225 |
| 276 | natural gas | 4 | 62 | 397 | 542 |
| 278 | Obstetrics | 4 | 61 | 2857 | 3116 |
| 278 | Cytology | 8 | 61 | 3611 | 5830 |
| 278 | Eastern Europe | 16 | 61 | 297 | 612 |
| 278 | ozone | 1 | 61 | 328 | 121 |
| 278 | rehabilitation | 2 | 61 | 3356 | 2801 |
| 283 | Luminescence | 4 | 60 | 1432 | 1489 |
| 284 | Educational Technology | 11 | 59 | 788 | 1636 |
| 284 | DNA repair | 3 | 59 | 347 | 468 |
| 286 | Control Theory | 7 | 58 | 1366 | 1697 |
| 287 | Epidemiology | 20 | 57 | 1910 | 5253 |
| 287 | Green Chemistry | 3 | 57 | 2007 | 2603 |
| 287 | Nondestructive testing | 1 | 57 | 1421 | 768 |
| 287 | Social Networks | 2 | 57 | 486 | 418 |
| 287 | Travel | 6 | 57 | 660 | 994 |
| 287 | Vaccines | 4 | 57 | 2070 | 2673 |
| 293 | Cybernetics | 4 | 56 | 1366 | 1646 |
| 293 | Online social networks | 1 | 56 | 781 | 336 |
| 295 | Transportation | 3 | 54 | 1984 | 1969 |
| 295 | Qualitative Research | 3 | 54 | 582 | 546 |
| 297 | Philosophy | 13 | 53 | 993 | 937 |
| 298 | Industrial Engineering | 12 | 52 | 1094 | 2452 |
| 298 | economic policy | 16 | 52 | 1222 | 2287 |
| 298 | Educational evaluation | 3 | 52 | 177 | 155 |
| 301 | Radiation | 7 | 51 | 1845 | 2684 |
| 301 | biomedicine | 1 | 51 | 2032 | 1369 |
| 301 | optical devices | 3 | 51 | 602 | 598 |
| 304 | Civil Engineering | 3 | 50 | 2440 | 1698 |
| 304 | Infection control | 2 | 50 | 1095 | 1105 |
| 304 | Drug design | 15 | 50 | 756 | 2634 |
| 304 | Chemical industry | 5 | 50 | 1318 | 1564 |
| 308 | Metabolism | 4 | 49 | 3137 | 4545 |
| 308 | Animal Behavior | 1 | 49 | 3360 | 2883 |
| 308 | indoor air pollution | 4 | 49 | 356 | 637 |
| 308 | Ventilation | 4 | 49 | 487 | 749 |
| 308 | Sick building syndrome | 4 | 49 | 356 | 637 |
| 313 | Anatomy | 3 | 48 | 2476 | 2743 |
| 313 | Embryology | 2 | 48 | 2206 | 2497 |
| 313 | Digital electronics | 1 | 48 | 728 | 280 |
| 313 | Developmental Biology | 2 | 48 | 2975 | 3259 |
| 313 | Neurophysiology | 3 | 48 | 3451 | 4291 |
| 313 | International security | 2 | 48 | 314 | 418 |
| 313 | Growth | 2 | 48 | 1694 | 2132 |
| 313 | Molecular structure | 6 | 48 | 2237 | 3146 |
| 313 | conflict management | 2 | 48 | 382 | 425 |
| 322 | Special Education | 2 | 47 | 1126 | 798 |
| 322 | Metallurgy | 5 | 47 | 2532 | 2943 |
| 322 | behavioral medicine | 2 | 47 | 2045 | 2295 |
| 322 | ethnic groups | 3 | 47 | 360 | 420 |
| 322 | human behavior | 2 | 47 | 3614 | 4247 |
| 322 | race relations | 3 | 47 | 638 | 608 |
| 322 | Aging | 5 | 47 | 2888 | 3837 |
| 329 | Engineering Mathematics | 9 | 46 | 1856 | 2635 |
| 329 | Child | 6 | 46 | 2316 | 3381 |
| 329 | Women's health | 6 | 46 | 1069 | 1877 |
| 332 | Law | 2 | 45 | 2242 | 908 |
| 332 | Geotechnical Engineering | 5 | 45 | 615 | 903 |
| 332 | Cognitive Radio Networks | 2 | 45 | 118 | 72 |
| 332 | air quality | 7 | 45 | 75 | 379 |
| 332 | China | 11 | 45 | 1835 | 3834 |
| 332 | internet | 5 | 45 | 1050 | 1450 |
| 338 | Information Technology | 6 | 44 | 2211 | 2904 |
| 338 | Traffic Engineering | 1 | 44 | 854 | 693 |
| 338 | Highway Engineering | 1 | 44 | 829 | 495 |
| 338 | Quantum Chemistry | 3 | 44 | 1104 | 972 |
| 338 | Alternative Medicine | 2 | 44 | 2831 | 2795 |
| 338 | Quantum Optics | 4 | 44 | 967 | 1183 |
| 338 | Noise | 2 | 44 | 243 | 113 |
| 338 | complementary therapies | 3 | 44 | 2561 | 2903 |
| 338 | Sound | 2 | 44 | 1306 | 752 |
| 338 | Tropical Medicine | 5 | 44 | 1883 | 2607 |
| 338 | Atomic spectroscopy | 4 | 44 | 1227 | 1559 |
| 338 | Laser Spectroscopy | 4 | 44 | 899 | 1110 |
| 338 | Information Science | 6 | 44 | 2152 | 3537 |
| 351 | Greenhouse gases | 2 | 43 | 503 | 706 |
| 352 | Neurobiology | 1 | 42 | 3200 | 3036 |
| 353 | Pharmacy | 6 | 41 | 1893 | 3321 |
| 353 | Econometrics | 4 | 41 | 1398 | 1577 |
| 353 | Political Sociology | 6 | 41 | 322 | 534 |
| 353 | Analytical Biochemistry | 5 | 41 | 1689 | 2723 |
| 353 | Bioinorganic chemistry | 4 | 41 | 1458 | 2104 |
| 353 | genome | 6 | 41 | 1407 | 2918 |
| 353 | educational innovations | 4 | 41 | 468 | 670 |
| 360 | Automation | 5 | 40 | 1768 | 2505 |
| 360 | drugs | 4 | 40 | 2510 | 3521 |
| 362 | Nonlinear functional analysis | 5 | 39 | 1064 | 1465 |
| 362 | Knowledge | 4 | 39 | 450 | 452 |
| 362 | Radioisotopes | 4 | 39 | 1317 | 1545 |
| 362 | Courts | 1 | 39 | 98 | 22 |
| 366 | Nanochemistry | 5 | 38 | 1152 | 1716 |
| 366 | Telecommunication | 9 | 38 | 1568 | 2618 |
| 366 | Neurons | 1 | 38 | 1201 | 1613 |
| 369 | Intelligent Control Systems | 7 | 37 | 777 | 1269 |
| 369 | Soviet Union | 7 | 37 | 469 | 616 |
| 371 | Virology | 6 | 36 | 2888 | 5419 |
| 371 | Smart Materials | 1 | 36 | 1837 | 1408 |
| 371 | Wind power | 4 | 36 | 271 | 464 |
| 371 | cell physiology | 5 | 36 | 1499 | 2924 |
| 371 | Kidney diseases | 5 | 36 | 978 | 1637 |
| 376 | Neurochemistry | 3 | 35 | 2849 | 3822 |
| 376 | Environmental Law | 2 | 35 | 1667 | 2430 |
| 376 | Neurotoxicology | 1 | 35 | 1235 | 1213 |
| 376 | poverty | 2 | 35 | 641 | 720 |
| 376 | Fracture mechanics | 4 | 35 | 1479 | 1990 |
| 376 | cultural pluralism | 4 | 35 | 354 | 493 |
| 382 | Meteorology | 2 | 34 | 3346 | 3951 |
| 382 | Environmental Ethics | 1 | 34 | 394 | 157 |
| 382 | Stochastic Processes | 3 | 34 | 1134 | 1224 |
| 382 | Geochemistry | 7 | 34 | 1658 | 3102 |
| 382 | Statistical Mechanics | 1 | 34 | 2314 | 1278 |
| 382 | Social welfare | 1 | 34 | 1259 | 823 |
| 382 | Entropy | 4 | 34 | 1131 | 1479 |
| 382 | Therapeutics | 4 | 34 | 1999 | 3384 |
| 382 | atmosphere | 2 | 34 | 1206 | 1487 |
| 391 | Medical Technology | 3 | 33 | 2399 | 3312 |
| 391 | Biomass Energy | 3 | 33 | 3025 | 4142 |
| 391 | Obesity | 3 | 33 | 2527 | 3773 |
| 391 | Ethnology | 7 | 33 | 1129 | 1839 |
| 391 | health planning | 7 | 33 | 1709 | 3350 |
| 396 | Pathology | 6 | 32 | 2208 | 4272 |
| 396 | Environmental Geology | 2 | 32 | 2368 | 2657 |
| 396 | Pharmacokinetics | 1 | 32 | 2076 | 1754 |
| 396 | Food additives | 2 | 32 | 1811 | 2258 |
| 396 | Calorimetry | 1 | 32 | 2341 | 1720 |
| 396 | Southeast Asia | 4 | 32 | 380 | 427 |
| 396 | Diplomatic relations | 3 | 32 | 881 | 556 |
| 396 | free radicals | 1 | 32 | 2718 | 2776 |
| 396 | hydrocolloids | 2 | 32 | 882 | 1390 |
| 396 | catalytic activity | 2 | 32 | 881 | 1143 |
| 396 | Nonlinear systems | 2 | 32 | 901 | 913 |
| 396 | Thermal analysis | 1 | 32 | 2341 | 1720 |
| 408 | Cryptography | 3 | 31 | 770 | 732 |
| 408 | Evolutionary Genetics | 3 | 31 | 851 | 1401 |
| 408 | Molecular Epidemiology | 3 | 31 | 851 | 1401 |
| 408 | Photochemistry | 4 | 31 | 1957 | 3014 |
| 408 | Primary health care | 6 | 31 | 1575 | 2990 |
| 408 | Photobiology | 4 | 31 | 1518 | 2422 |
| 408 | software | 3 | 31 | 1164 | 1875 |
| 415 | Geography | 3 | 30 | 2884 | 3500 |
| 415 | Disability Studies | 1 | 30 | 617 | 399 |
| 415 | ethnicity | 7 | 30 | 434 | 878 |
| 415 | Learning disabilities | 1 | 30 | 1535 | 1243 |
| 415 | Trademarks | 2 | 30 | 166 | 199 |
| 420 | Human genetics | 3 | 29 | 2739 | 4701 |
| 420 | Computational Intelligence | 1 | 29 | 2148 | 1413 |
| 420 | Broadcasting | 1 | 29 | 390 | 293 |
| 420 | reasoning | 1 | 29 | 864 | 672 |
| 420 | particle beams | 3 | 29 | 252 | 366 |
| 420 | Central Asia | 2 | 29 | 322 | 331 |
| 420 | chromatin | 1 | 29 | 378 | 429 |
| 427 | Hydrology | 7 | 28 | 2093 | 3798 |
| 427 | Health Policy | 1 | 28 | 4956 | 4104 |
| 427 | Internet of Things | 2 | 28 | 970 | 950 |
| 427 | Child Development | 4 | 28 | 2081 | 3426 |
| 431 | Higher Education | 3 | 26 | 635 | 852 |
| 431 | Technology Assessment | 1 | 26 | 875 | 956 |
| 431 | Green Technology | 2 | 26 | 716 | 843 |
| 431 | Medical Ethics | 4 | 26 | 1226 | 1720 |
| 431 | Neuroplasticity | 3 | 26 | 416 | 842 |
| 431 | neuronal plasticity | 3 | 26 | 341 | 760 |
| 431 | Bones | 1 | 26 | 1822 | 1859 |
| 438 | Child welfare | 5 | 25 | 967 | 1896 |
| 438 | Educational Change | 2 | 25 | 82 | 155 |
| 440 | Heterocyclic chemistry | 1 | 24 | 1206 | 721 |
| 440 | Education policy | 2 | 24 | 105 | 185 |
| 440 | Developmental Disabilities | 2 | 24 | 1444 | 2060 |
| 440 | actuators | 2 | 24 | 3044 | 4027 |
| 440 | Organometallic compounds | 1 | 24 | 2167 | 2065 |
| 440 | carbon monoxide | 2 | 24 | 477 | 922 |
| 440 | Heterocyclic compounds | 1 | 24 | 1923 | 1457 |
| 440 | transducers | 2 | 24 | 3044 | 4027 |
| 448 | Agricultural Chemistry | 1 | 23 | 4151 | 4030 |
| 448 | Public Policy | 3 | 23 | 2215 | 3478 |
| 448 | Bioethics | 3 | 23 | 1146 | 1435 |
| 448 | Porous materials | 4 | 23 | 758 | 1283 |
| 448 | Reproduction | 5 | 23 | 2302 | 4092 |
| 448 | Plasma devices | 1 | 23 | 643 | 653 |
| 454 | Pediatrics | 3 | 22 | 3379 | 5002 |
| 454 | Computational Fluid Dynamics | 2 | 22 | 1006 | 1270 |
| 454 | Lightweight concrete | 1 | 22 | 809 | 1130 |
| 454 | nursing ethics | 1 | 22 | 554 | 587 |
| 454 | Antibodies | 1 | 22 | 1440 | 1474 |
| 454 | Islam | 7 | 22 | 368 | 617 |
| 454 | Antigens | 1 | 22 | 1835 | 1863 |
| 454 | Radio | 5 | 22 | 737 | 1132 |
| 462 | Political Psychology | 1 | 21 | 625 | 670 |
| 462 | Machining | 2 | 21 | 223 | 291 |
| 462 | Radio waves | 3 | 21 | 382 | 458 |
| 462 | Allergy | 2 | 21 | 1817 | 2580 |
| 466 | Nutrition | 4 | 20 | 5026 | 7972 |
| 466 | Combustion | 2 | 20 | 1768 | 2260 |
| 466 | Corporate Social Responsibility | 2 | 20 | 437 | 881 |
| 466 | environmental auditing | 2 | 20 | 457 | 894 |
| 466 | Chemical kinetics | 3 | 20 | 947 | 1185 |
| 466 | Business | 4 | 20 | 2314 | 3496 |
| 466 | Business Ethics | 1 | 20 | 1653 | 1926 |
| 466 | Transplantation | 2 | 20 | 1790 | 2404 |
| 466 | Jurisprudence | 1 | 20 | 1894 | 1632 |
| 466 | European Union | 2 | 20 | 244 | 305 |
| 476 | Systems Biology | 5 | 19 | 1581 | 3280 |
| 476 | Diagnosis | 2 | 19 | 983 | 1351 |
| 476 | Diet | 2 | 19 | 3398 | 4864 |
| 476 | disease susceptibility | 2 | 19 | 554 | 937 |
| 476 | biochemical markers | 2 | 19 | 1326 | 1919 |
| 476 | Culture | 5 | 19 | 943 | 1496 |
| 476 | symptoms | 2 | 19 | 554 | 937 |
| 483 | Algebra | 7 | 18 | 1243 | 1670 |
| 483 | Electromagnetism | 2 | 18 | 1167 | 1287 |
| 483 | Magnetic Materials | 2 | 18 | 2003 | 2431 |
| 483 | Financial management | 1 | 18 | 1100 | 1328 |
| 483 | International Finance | 4 | 18 | 1621 | 2573 |
| 483 | older people | 3 | 18 | 2064 | 2515 |
| 483 | School Improvement Programs | 2 | 18 | 42 | 81 |
| 483 | innovation | 2 | 18 | 877 | 1400 |
| 483 | Group Identity | 4 | 18 | 38 | 147 |
| 483 | Diabetes | 2 | 18 | 3321 | 4587 |
| 493 | Applied Mathematics | 3 | 17 | 1238 | 1185 |
| 493 | Functional Analysis | 6 | 17 | 1110 | 1886 |
| 493 | Geometry | 5 | 17 | 1204 | 1496 |
| 493 | Organic Chemistry | 3 | 17 | 3681 | 5118 |
| 493 | Physical Chemistry | 2 | 17 | 3215 | 4037 |
| 493 | Physical organic chemistry | 4 | 17 | 1438 | 2521 |
| 493 | Democracy | 1 | 17 | 738 | 445 |
| 493 | Energy Consumption | 1 | 17 | 554 | 600 |
| 493 | Democratization | 1 | 17 | 329 | 339 |
| 493 | Bioorganic chemistry | 4 | 17 | 2966 | 4933 |
| 493 | Library Science | 4 | 17 | 1265 | 1578 |
| 504 | Embedded Systems | 1 | 16 | 419 | 412 |
| 504 | Signal Transduction | 1 | 16 | 2673 | 3151 |
| 504 | Particle Physics | 1 | 16 | 1514 | 1204 |
| 504 | Quantum electronics | 2 | 16 | 1668 | 1633 |
| 504 | Organizational change | 3 | 16 | 818 | 1426 |
| 504 | Tourism | 1 | 16 | 2842 | 2991 |
| 504 | Lattice Theory | 2 | 16 | 288 | 253 |
| 504 | Quality Assurance | 1 | 16 | 980 | 934 |
| 504 | Microprocessors | 1 | 16 | 1202 | 1132 |
| 504 | Immunogenetics | 2 | 16 | 1166 | 1736 |
| 504 | Antioxidants | 1 | 16 | 1539 | 2088 |
| 504 | organizational effectiveness | 3 | 16 | 466 | 905 |
| 504 | Hospitality industry | 1 | 16 | 877 | 1016 |
| 504 | water supply | 3 | 16 | 1127 | 2133 |
| 504 | immigrants | 2 | 16 | 51 | 63 |
| 504 | Quality of life | 2 | 16 | 2354 | 3623 |
| 504 | Learning | 3 | 16 | 1578 | 2594 |
| 504 | Japan | 3 | 16 | 2698 | 3701 |
| 504 | Oxidation-reduction | 1 | 16 | 1549 | 2124 |
| 523 | Photography | 14 | 15 | 1718 | 2495 |
| 523 | Microbial Ecology | 3 | 15 | 2770 | 5097 |
| 523 | Total Quality Management | 1 | 15 | 1211 | 1351 |
| 523 | Entrepreneurship | 4 | 15 | 1018 | 2067 |
| 523 | Groundwater | 1 | 15 | 1378 | 1483 |
| 523 | Social work | 4 | 15 | 1476 | 2576 |
| 523 | Planets | 2 | 15 | 2119 | 3144 |
| 530 | Systems Analysis | 2 | 14 | 1659 | 2384 |
| 530 | Process Control | 1 | 14 | 1650 | 2168 |
| 530 | Quality Control | 2 | 14 | 2788 | 3950 |
| 530 | Food service management | 1 | 14 | 768 | 1085 |
| 530 | Feminism | 3 | 14 | 660 | 978 |
| 530 | Access to Information | 2 | 14 | 245 | 587 |
| 530 | big data | 2 | 14 | 824 | 1207 |
| 530 | Social policy | 2 | 14 | 1499 | 1888 |
| 530 | Food | 1 | 14 | 5712 | 6383 |
| 530 | visualization | 2 | 14 | 2478 | 2061 |
| 530 | curriculum evaluation | 5 | 14 | 246 | 761 |
| 530 | Metallography | 1 | 14 | 1625 | 1814 |
| 530 | investigative techniques | 1 | 14 | 345 | 537 |
| 530 | Autism | 2 | 14 | 1010 | 1701 |
| 530 | Information dissemination | 2 | 14 | 245 | 587 |
| 545 | Marine Biology | 3 | 13 | 3057 | 4875 |
| 545 | Nuclear Engineering | 2 | 13 | 1837 | 2031 |
| 545 | Industrial Organization | 4 | 13 | 298 | 747 |
| 545 | Distance Education | 2 | 13 | 712 | 1096 |
| 545 | Medical Oncology | 3 | 13 | 2524 | 4001 |
| 545 | Geographic information systems | 1 | 13 | 2318 | 2212 |
| 545 | Flexible manufacturing systems | 1 | 13 | 882 | 1185 |
| 545 | Bioremediation | 1 | 13 | 1871 | 2329 |
| 545 | preventive medicine | 1 | 13 | 2841 | 3316 |
| 545 | Bacteriology | 1 | 13 | 3546 | 4379 |
| 545 | Water quality | 1 | 13 | 647 | 866 |
| 545 | Vaccination | 1 | 13 | 694 | 919 |
| 545 | Political Parties | 2 | 13 | 295 | 444 |
| 545 | Marine Pollution | 3 | 13 | 1451 | 2895 |
| 545 | Industrial Policy | 4 | 13 | 494 | 1093 |
| 545 | Respiratory system | 2 | 13 | 925 | 1565 |
| 545 | Electrophysiology | 1 | 13 | 2250 | 2318 |
| 545 | Nuclear Facilities | 1 | 13 | 169 | 128 |
| 545 | Electromagnetic fields | 1 | 13 | 784 | 569 |
| 545 | Water chemistry | 1 | 13 | 933 | 1093 |
| 545 | Respiration | 2 | 13 | 2215 | 3387 |
| 545 | drug abuse | 1 | 13 | 1386 | 1563 |
| 545 | harm reduction | 1 | 13 | 504 | 565 |
| 568 | Industrial Design | 2 | 12 | 406 | 663 |
| 568 | Public Relations | 1 | 12 | 1018 | 982 |
| 568 | Soil Science | 2 | 12 | 2682 | 3752 |
| 568 | Neurosurgery | 1 | 12 | 2295 | 2468 |
| 568 | Applied Linguistics | 3 | 12 | 695 | 1018 |
| 568 | Social History | 1 | 12 | 1057 | 756 |
| 568 | Chemical Oceanography | 1 | 12 | 584 | 857 |
| 568 | food technology | 2 | 12 | 3614 | 5235 |
| 568 | Multivariate Analysis | 1 | 12 | 959 | 1031 |
| 568 | Fractional Calculus | 3 | 12 | 149 | 409 |
| 568 | Electron Microscopy | 1 | 12 | 877 | 1023 |
| 568 | Urban Anthropology | 1 | 12 | 387 | 462 |
| 568 | Communist countries | 3 | 12 | 287 | 494 |
| 568 | ecosystem | 1 | 12 | 2546 | 3214 |
| 568 | Classification | 1 | 12 | 634 | 609 |
| 568 | Earth Sciences | 7 | 12 | 2748 | 5626 |
| 568 | Longevity | 3 | 12 | 190 | 661 |
| 568 | rejuvenation | 3 | 12 | 133 | 575 |
| 568 | Quantum theory | 2 | 12 | 1438 | 1795 |
| 587 | Information Theory | 2 | 11 | 1760 | 2238 |
| 587 | Hydrogeology | 2 | 11 | 1079 | 1597 |
| 587 | Environmental Microbiology | 1 | 11 | 2821 | 3657 |
| 587 | Fluid Mechanics | 4 | 11 | 1835 | 3278 |
| 587 | Intercultural Communication | 1 | 11 | 824 | 901 |
| 587 | Neonatology | 1 | 11 | 1425 | 1747 |
| 587 | Clinical Immunology | 2 | 11 | 1999 | 3019 |
| 587 | Geothermal Energy | 2 | 11 | 387 | 735 |
| 587 | economic forecasting | 2 | 11 | 522 | 900 |
| 587 | Forecasting | 2 | 11 | 841 | 1278 |
| 587 | Language and Culture | 1 | 11 | 385 | 351 |
| 587 | Developmental Immunology | 2 | 11 | 1210 | 2146 |
| 587 | Cosmochemistry | 1 | 11 | 1682 | 2142 |
| 587 | corrections | 2 | 11 | 257 | 365 |
| 587 | punishment | 2 | 11 | 148 | 266 |
| 587 | pigments | 2 | 11 | 1216 | 1991 |
| 603 | Physiology | 1 | 10 | 7133 | 8167 |
| 603 | Climatology | 1 | 10 | 3269 | 3749 |
| 603 | Paleoclimatology | 1 | 10 | 1817 | 2279 |
| 603 | Paleoecology | 1 | 10 | 1779 | 2155 |
| 603 | Educational Psychology | 2 | 10 | 1942 | 2840 |
| 603 | Nuclear Fusion | 1 | 10 | 1130 | 1176 |
| 603 | Kalman Filtering | 1 | 10 | 273 | 277 |
| 603 | Paleogeography | 1 | 10 | 1580 | 1967 |
| 603 | Supramolecular chemistry | 1 | 10 | 564 | 637 |
| 603 | Transnationalism | 2 | 10 | 15 | 28 |
| 603 | Coding Theory | 3 | 10 | 399 | 652 |
| 603 | Research methodology | 1 | 10 | 230 | 375 |
| 603 | Watershed management | 1 | 10 | 619 | 655 |
| 603 | Communism | 2 | 10 | 227 | 361 |
| 603 | Optoelectronic devices | 1 | 10 | 1842 | 1602 |
| 603 | body temperature | 1 | 10 | 1112 | 1426 |
| 603 | population geography | 1 | 10 | 837 | 942 |
| 603 | fusion reactors | 1 | 10 | 871 | 854 |
| 603 | Egypt | 2 | 10 | 776 | 1537 |
| 622 | Radiology | 2 | 9 | 2534 | 3419 |
| 622 | Dermatology | 1 | 9 | 3307 | 3665 |
| 622 | Geomorphology | 1 | 9 | 2333 | 2977 |
| 622 | Optical Communications | 1 | 9 | 1275 | 1370 |
| 622 | Demography | 1 | 9 | 1482 | 1746 |
| 622 | Petrology | 3 | 9 | 1051 | 1749 |
| 622 | Industrial Microbiology | 2 | 9 | 2903 | 4697 |
| 622 | Health Education | 2 | 9 | 3008 | 4649 |
| 622 | Microbial Biotechnology | 1 | 9 | 2135 | 2659 |
| 622 | cosmic rays | 2 | 9 | 735 | 1189 |
| 622 | Happiness | 1 | 9 | 979 | 1308 |
| 622 | Globalization | 1 | 9 | 1221 | 1577 |
| 622 | Investment analysis | 1 | 9 | 1618 | 1665 |
| 622 | international trade | 2 | 9 | 1072 | 1612 |
| 622 | Monomers | 1 | 9 | 190 | 286 |
| 622 | Communication | 1 | 9 | 3905 | 4075 |
| 622 | Chromosomes | 2 | 9 | 1466 | 2576 |
| 622 | viruses | 2 | 9 | 2176 | 3727 |
| 622 | Human Resources | 1 | 9 | 888 | 1326 |
| 622 | drug therapy | 4 | 9 | 2687 | 5391 |
| 622 | Sites | 1 | 9 | 1066 | 1572 |
| 622 | Developed countries | 2 | 9 | 335 | 678 |
| 644 | Social Choice Theory | 1 | 8 | 471 | 510 |
| 644 | Global Health | 5 | 8 | 973 | 2883 |
| 644 | Health Services Administration | 4 | 8 | 1131 | 3104 |
| 644 | Gender Studies | 1 | 8 | 973 | 1247 |
| 644 | Information Systems | 1 | 8 | 3066 | 3759 |
| 644 | Macroeconomics | 1 | 8 | 762 | 838 |
| 644 | Pharmacogenetics | 1 | 8 | 2193 | 2914 |
| 644 | Phonetics | 1 | 8 | 624 | 792 |
| 644 | Phonology | 1 | 8 | 58 | 93 |
| 644 | Psychiatric Nursing | 2 | 8 | 995 | 1721 |
| 644 | Clinical Pharmacology | 1 | 8 | 2920 | 3660 |
| 644 | Kinetics | 1 | 8 | 1135 | 1429 |
| 644 | Algebraic Logic | 2 | 8 | 52 | 63 |
| 644 | Welfare Economics | 1 | 8 | 801 | 967 |
| 644 | Patient education | 1 | 8 | 1301 | 1932 |
| 644 | Genetic Research | 1 | 8 | 447 | 629 |
| 644 | diffusion | 3 | 8 | 419 | 491 |
| 644 | Semiconductors | 4 | 8 | 2290 | 3992 |
| 644 | Expert Systems | 1 | 8 | 552 | 767 |
| 644 | sexual orientation | 1 | 8 | 302 | 415 |
| 644 | pain management | 1 | 8 | 1487 | 1768 |
| 644 | Gender identity | 1 | 8 | 659 | 648 |
| 644 | Plastics | 2 | 8 | 2555 | 3619 |
| 644 | Military readiness | 4 | 8 | 63 | 129 |
| 644 | counseling | 1 | 8 | 2677 | 3169 |
| 644 | commerce | 1 | 8 | 3086 | 3266 |
| 644 | pain | 1 | 8 | 2788 | 3336 |
| 644 | Fashion | 1 | 8 | 331 | 378 |
| 644 | women | 1 | 8 | 1690 | 1726 |
| 644 | language | 4 | 8 | 760 | 1683 |
| 644 | Meteorites | 1 | 8 | 1569 | 2113 |
| 675 | Engineering Physics | 1 | 7 | 279 | 198 |
| 675 | Surgery | 1 | 7 | 3852 | 4362 |
| 675 | Nephrology | 2 | 7 | 880 | 1634 |
| 675 | Bioenergetics | 1 | 7 | 1696 | 2291 |
| 675 | Educational Leadership | 1 | 7 | 353 | 427 |
| 675 | Ethnoarchaeology | 1 | 7 | 381 | 561 |
| 675 | Computational Linguistics | 1 | 7 | 1314 | 1348 |
| 675 | Emergency Medicine | 2 | 7 | 2430 | 3629 |
| 675 | Politics | 1 | 7 | 1356 | 1022 |
| 675 | Language and Logic | 1 | 7 | 235 | 212 |
| 675 | Raman spectroscopy | 1 | 7 | 1676 | 2283 |
| 675 | Autoimmunity | 1 | 7 | 1501 | 2168 |
| 675 | elasticity | 1 | 7 | 476 | 598 |
| 675 | food handling | 1 | 7 | 1825 | 2637 |
| 675 | Environmental pollutants | 2 | 7 | 3329 | 5373 |
| 675 | government | 1 | 7 | 1420 | 1262 |
| 675 | Petroleum | 2 | 7 | 497 | 777 |
| 675 | planning | 3 | 7 | 857 | 1998 |
| 675 | kidney | 2 | 7 | 109 | 264 |
| 675 | India | 2 | 7 | 2888 | 3389 |
| 695 | Criminology | 2 | 6 | 1242 | 1857 |
| 695 | Computer Engineering | 1 | 6 | 1879 | 2276 |
| 695 | Game Theory | 3 | 6 | 675 | 1275 |
| 695 | Mineralogy | 2 | 6 | 1966 | 2876 |
| 695 | Risk Management | 1 | 6 | 1699 | 2288 |
| 695 | Environmental Chemistry | 2 | 6 | 3232 | 5235 |
| 695 | Feminist Economics | 2 | 6 | 106 | 404 |
| 695 | genre | 1 | 6 | 563 | 750 |
| 695 | Career development | 2 | 6 | 585 | 1159 |
| 695 | Religion | 1 | 6 | 2046 | 1430 |
| 695 | Thin Films | 1 | 6 | 1282 | 1626 |
| 695 | terrorism | 1 | 6 | 592 | 738 |
| 695 | Simulation Methods | 2 | 6 | 1536 | 2708 |
| 695 | Climate change | 3 | 6 | 1253 | 2854 |
| 695 | Mutagenesis | 1 | 6 | 1092 | 1589 |
| 695 | Sexual health | 2 | 6 | 1155 | 1785 |
| 695 | Academic achievement | 2 | 6 | 65 | 175 |
| 695 | Strategic planning | 1 | 6 | 1498 | 1963 |
| 695 | Environmental risk assessment | 1 | 6 | 999 | 1459 |
| 695 | Securities | 2 | 6 | 496 | 1033 |
| 695 | social conflict | 1 | 6 | 506 | 626 |
| 695 | mutagens | 1 | 6 | 1644 | 2416 |
| 695 | Combinatorial analysis | 1 | 6 | 1850 | 1725 |
| 695 | Hydrocarbons | 1 | 6 | 262 | 339 |
| 695 | Cannabis | 1 | 6 | 218 | 379 |
| 695 | Cement | 2 | 6 | 867 | 1567 |
| 695 | cannabinoids | 1 | 6 | 201 | 346 |
| 695 | finance | 6 | 6 | 1951 | 4082 |
| 695 | DNA | 2 | 6 | 967 | 1889 |
| 695 | Philippines | 2 | 6 | 181 | 374 |
| 725 | Zoology | 1 | 5 | 4465 | 5228 |
| 725 | Geriatrics | 3 | 5 | 3922 | 6530 |
| 725 | Pharmacognosy | 1 | 5 | 3407 | 4532 |
| 725 | Power Electronics | 2 | 5 | 982 | 1572 |
| 725 | Cytogenetics | 1 | 5 | 3015 | 4111 |
| 725 | Differential Equations | 4 | 5 | 1000 | 1857 |
| 725 | infrared radiation | 1 | 5 | 1334 | 1731 |
| 725 | cultural policy | 1 | 5 | 444 | 566 |
| 725 | Carcinogenesis | 1 | 5 | 2038 | 3006 |
| 725 | Medicinal plants | 1 | 5 | 2838 | 3821 |
| 725 | Language and Education | 1 | 5 | 375 | 400 |
| 725 | Radiobiology | 2 | 5 | 2502 | 3680 |
| 725 | structural stability | 1 | 5 | 949 | 1341 |
| 725 | gene therapy | 1 | 5 | 2316 | 3217 |
| 725 | Second Language Acquisition | 1 | 5 | 413 | 612 |
| 725 | Hydraulic structures | 1 | 5 | 209 | 287 |
| 725 | sustainability | 1 | 5 | 1782 | 2375 |
| 725 | Chemical processes | 1 | 5 | 1346 | 1863 |
| 725 | Government policy | 1 | 5 | 380 | 583 |
| 725 | biological factors | 2 | 5 | 2873 | 4895 |
| 725 | Capital market | 1 | 5 | 829 | 1205 |
| 725 | mental processes | 2 | 5 | 534 | 930 |
| 725 | food industry | 1 | 5 | 1596 | 1920 |
| 725 | Sales management | 1 | 5 | 405 | 666 |
| 725 | selling | 1 | 5 | 405 | 666 |
| 725 | Human biology | 1 | 5 | 1375 | 1908 |
| 725 | Cognition | 1 | 5 | 3011 | 3983 |
| 725 | Pregnancy | 1 | 5 | 1910 | 2546 |
| 753 | Early Childhood Education | 2 | 4 | 767 | 1372 |
| 753 | Thermodynamics | 2 | 4 | 1795 | 2721 |
| 753 | Environmental Toxicology | 2 | 4 | 3591 | 6185 |
| 753 | Occupational Health | 2 | 4 | 1865 | 3110 |
| 753 | Organizational Sociology | 1 | 4 | 676 | 972 |
| 753 | Health Services Research | 3 | 4 | 2314 | 4876 |
| 753 | Critical Care | 1 | 4 | 3188 | 4313 |
| 753 | Cultural Anthropology | 1 | 4 | 203 | 292 |
| 753 | Regional Planning | 2 | 4 | 2226 | 3566 |
| 753 | Human Rights | 2 | 4 | 849 | 1564 |
| 753 | emergency management | 1 | 4 | 1924 | 2897 |
| 753 | industrial hygiene | 2 | 4 | 1858 | 3094 |
| 753 | Mobile genetic elements | 1 | 4 | 248 | 494 |
| 753 | Regionalism | 2 | 4 | 335 | 754 |
| 753 | Bifurcation Theory | 2 | 4 | 996 | 1682 |
| 753 | transgenic organisms | 1 | 4 | 669 | 1149 |
| 753 | Plant genetic engineering | 1 | 4 | 1788 | 2442 |
| 753 | transgenic animals | 1 | 4 | 637 | 1103 |
| 753 | soil conservation | 1 | 4 | 1664 | 2315 |
| 753 | civil society | 1 | 4 | 156 | 248 |
| 753 | soil pollution | 1 | 4 | 1313 | 1889 |
| 753 | Chemical safety | 2 | 4 | 70 | 99 |
| 753 | Adhesion | 1 | 4 | 1436 | 1998 |
| 753 | Chromatography | 1 | 4 | 3126 | 4280 |
| 753 | Environmental Geochemistry | 1 | 4 | 1347 | 1939 |
| 753 | Transgenic plants | 1 | 4 | 1061 | 1657 |
| 753 | Serbia | 1 | 4 | 353 | 369 |
| 753 | Small Business | 1 | 4 | 1372 | 2006 |
| 753 | Federal government | 2 | 4 | 221 | 506 |
| 753 | Adolescent | 3 | 4 | 2770 | 5452 |
| 753 | stability | 1 | 4 | 240 | 309 |
| 753 | Alzheimer's disease | 7 | 4 | 1236 | 2624 |
| 753 | Ore deposits | 1 | 4 | 935 | 1283 |
| 753 | adhesives | 1 | 4 | 1527 | 2043 |
| 753 | Chromatographic analysis | 1 | 4 | 3572 | 4677 |
| 753 | Perception | 3 | 4 | 2471 | 5065 |
| 789 | Geology | 2 | 3 | 4127 | 6113 |
| 789 | Emergency Medical Services | 1 | 3 | 1832 | 2646 |
| 789 | Language Disorders | 1 | 3 | 1594 | 2212 |
| 789 | Nanomedicine | 1 | 3 | 603 | 1227 |
| 789 | Asthma | 1 | 3 | 1555 | 2298 |
| 789 | Mining Geology | 1 | 3 | 219 | 356 |
| 789 | Forest Ecology | 1 | 3 | 1947 | 2797 |
| 789 | Image Processing | 3 | 3 | 2459 | 4872 |
| 789 | Sustainable agriculture | 2 | 3 | 1142 | 2432 |
| 789 | speech therapy | 1 | 3 | 796 | 1154 |
| 789 | Material Culture | 1 | 3 | 304 | 443 |
| 789 | Behavioral research | 1 | 3 | 1168 | 1643 |
| 789 | Genetic databases | 1 | 3 | 131 | 207 |
| 789 | Speech Disorders | 1 | 3 | 1866 | 2567 |
| 789 | psychophysics | 2 | 3 | 483 | 903 |
| 789 | Forest Management | 1 | 3 | 1894 | 2662 |
| 789 | Human-robot interaction | 1 | 3 | 120 | 226 |
| 789 | Child psychology | 1 | 3 | 2847 | 3949 |
| 789 | Food Security | 2 | 3 | 255 | 802 |
| 789 | Russia | 3 | 3 | 273 | 425 |
| 789 | foreign exchange | 1 | 3 | 715 | 1051 |
| 789 | Chemical analysis | 1 | 3 | 2275 | 3319 |
| 789 | Communication Disorders | 1 | 3 | 705 | 968 |
| 789 | natural products | 2 | 3 | 2612 | 4124 |
| 789 | Enzyme | 2 | 3 | 748 | 1745 |
| 789 | Roads | 1 | 3 | 1407 | 1839 |
| 789 | Dementia | 6 | 3 | 1307 | 2586 |
| 789 | Attention | 2 | 3 | 2855 | 5178 |
| 789 | Minerals | 1 | 3 | 1742 | 2459 |
| 789 | Psychophysiology | 2 | 3 | 3962 | 6388 |
| 789 | Allergies | 1 | 3 | 383 | 756 |
| 820 | Urology | 2 | 2 | 2648 | 4423 |
| 820 | Tribology | 1 | 2 | 2212 | 3005 |
| 820 | Horticulture | 2 | 2 | 1187 | 2261 |
| 820 | Microeconomics | 1 | 2 | 685 | 938 |
| 820 | Operator theory | 3 | 2 | 499 | 1077 |
| 820 | Space telescopes | 1 | 2 | 434 | 601 |
| 820 | Radiopharmaceuticals | 1 | 2 | 853 | 1169 |
| 820 | Cognitive Science | 2 | 2 | 2256 | 4209 |
| 820 | Reproductive health | 2 | 2 | 1260 | 2697 |
| 820 | Organometallic chemistry | 1 | 2 | 3367 | 4274 |
| 820 | Functional foods | 3 | 2 | 429 | 1546 |
| 820 | Venture Capital | 1 | 2 | 547 | 919 |
| 820 | Health | 2 | 2 | 3681 | 6812 |
| 820 | Folklore | 2 | 2 | 206 | 187 |
| 820 | Calculus of Variations | 1 | 2 | 919 | 1125 |
| 820 | Logic Programming | 1 | 2 | 604 | 790 |
| 820 | Adaptive control systems | 1 | 2 | 1228 | 1803 |
| 820 | Health insurance | 1 | 2 | 1029 | 1690 |
| 820 | Computational Complexity | 2 | 2 | 1628 | 2914 |
| 820 | Echocardiography | 1 | 2 | 261 | 582 |
| 820 | Semigroups | 1 | 2 | 595 | 753 |
| 820 | pollutants | 1 | 2 | 3580 | 5030 |
| 820 | East Asia | 1 | 2 | 1418 | 1982 |
| 820 | school-to-work transition | 1 | 2 | 162 | 373 |
| 820 | Vocational guidance | 1 | 2 | 1618 | 2453 |
| 820 | Fossil fuels | 1 | 2 | 214 | 298 |
| 820 | environmental exposure | 1 | 2 | 3911 | 5647 |
| 820 | Africa | 3 | 2 | 2064 | 4428 |
| 820 | Sedimentary rocks | 1 | 2 | 1104 | 1579 |
| 820 | national security | 2 | 2 | 567 | 967 |
| 820 | Islamic civilization | 3 | 2 | 156 | 184 |
| 820 | Investments | 1 | 2 | 1256 | 1917 |
| 820 | Instructional systems | 1 | 2 | 355 | 674 |
| 820 | identity recognition | 1 | 2 | 61 | 140 |
| 854 | Structuralism | 1 | 1 | 326 | 641 |
| 854 | Anthropological Linguistics | 1 | 1 | 620 | 779 |
| 854 | Neuropsychology | 1 | 1 | 4162 | 5772 |
| 854 | Engineering Economics | 1 | 1 | 222 | 391 |
| 854 | Graphic Novels | 1 | 1 | 86 | 182 |
| 854 | Chemotherapy | 3 | 1 | 1912 | 4338 |
| 854 | Computer Vision | 2 | 1 | 1675 | 3345 |
| 854 | Marine Geology | 1 | 1 | 1113 | 1647 |
| 854 | Lung Transplantation | 4 | 1 | 651 | 1384 |
| 854 | Petroleum Geology | 1 | 1 | 954 | 1414 |
| 854 | Tissue Engineering | 1 | 1 | 738 | 1264 |
| 854 | International Law | 1 | 1 | 789 | 824 |
| 854 | Educational Sociology | 1 | 1 | 762 | 1187 |
| 854 | Sports Medicine | 1 | 1 | 4635 | 5632 |
| 854 | Number Theory | 1 | 1 | 1572 | 2013 |
| 854 | Educational Anthropology | 1 | 1 | 245 | 414 |
| 854 | health behavior | 1 | 1 | 2046 | 3281 |
| 854 | health workforce | 1 | 1 | 462 | 1044 |
| 854 | income distribution | 1 | 1 | 338 | 611 |
| 854 | Popular culture | 1 | 1 | 1041 | 1246 |
| 854 | Combinatorial chemistry | 1 | 1 | 1797 | 2818 |
| 854 | Industrial Ecology | 1 | 1 | 430 | 853 |
| 854 | Research Design | 1 | 1 | 2675 | 4252 |
| 854 | environmental indicators | 1 | 1 | 2151 | 3401 |
| 854 | Soil dynamics | 1 | 1 | 911 | 1381 |
| 854 | Wireless Communication | 1 | 1 | 996 | 1622 |
| 854 | Immunochemistry | 1 | 1 | 2169 | 3169 |
| 854 | Marine Geophysics | 1 | 1 | 580 | 988 |
| 854 | Behavioral Finance | 1 | 1 | 153 | 429 |
| 854 | Plant physiology | 2 | 1 | 2870 | 4861 |
| 854 | Urbanization | 2 | 1 | 373 | 1078 |
| 854 | monetary policy | 1 | 1 | 157 | 333 |
| 854 | Aerosols | 2 | 1 | 860 | 1763 |
| 854 | Heart transplantation | 4 | 1 | 651 | 1384 |
| 854 | Socialism | 1 | 1 | 427 | 577 |
| 854 | Digital humanities | 1 | 1 | 247 | 480 |
| 854 | Public Finance | 1 | 1 | 413 | 707 |
| 854 | Continuum Mechanics | 1 | 1 | 378 | 646 |
| 854 | Brain | 1 | 1 | 4491 | 6009 |
| 854 | movement | 1 | 1 | 714 | 1195 |
| 854 | Social behavior | 1 | 1 | 2207 | 3391 |
| 854 | Comparative Law | 1 | 1 | 498 | 543 |
| 854 | anesthesia | 1 | 1 | 1298 | 1717 |
| 854 | Elections | 1 | 1 | 620 | 916 |
| 854 | Steroids | 1 | 1 | 1948 | 2937 |
| 854 | Evolution equations | 2 | 1 | 231 | 590 |
| 854 | United Kingdom | 1 | 1 | 3304 | 4732 |
| 854 | biopolymers | 1 | 1 | 2174 | 3139 |
| 854 | Approximation Theory | 1 | 1 | 813 | 1134 |
| 854 | winds | 1 | 1 | 310 | 564 |
| 854 | Structure-activity relationship | 1 | 1 | 1015 | 1631 |
| 854 | stocks | 1 | 1 | 346 | 771 |
| 854 | Toxins | 1 | 1 | 1957 | 2776 |
| 907 | Literature | 2 | 0 | 1322 | 1581 |
| 907 | History | 1 | 0 | 2066 | 2100 |
| 907 | Endocrinology | 2 | 0 | 4477 | 7461 |
| 907 | Linguistics | 1 | 0 | 2874 | 3785 |
| 907 | Botany | 1 | 0 | 6165 | 8113 |
| 907 | Hematology | 1 | 0 | 5376 | 6539 |
| 907 | Cognitive Psychology | 1 | 0 | 853 | 1373 |
| 907 | Nuclear Energy | 1 | 0 | 2265 | 3159 |
| 907 | Ethics | 1 | 0 | 2071 | 3473 |
| 907 | Institutional Economics | 1 | 0 | 291 | 666 |
| 907 | Philosophy of Mind | 2 | 0 | 352 | 836 |
| 907 | Geriatric Psychiatry | 1 | 0 | 2229 | 3513 |
| 907 | Medical Microbiology | 1 | 0 | 4462 | 6509 |
| 907 | Juvenile delinquency | 1 | 0 | 587 | 964 |
| 907 | Nanoelectronics | 1 | 0 | 1672 | 2480 |
| 907 | School Psychology | 1 | 0 | 870 | 1543 |
| 907 | Morphology | 1 | 0 | 1647 | 2402 |
| 907 | Machine Learning | 1 | 0 | 867 | 1436 |
| 907 | Atmospheric Chemistry | 1 | 0 | 1618 | 2413 |
| 907 | Educational Research | 1 | 0 | 240 | 555 |
| 907 | Food Preservation | 1 | 0 | 1608 | 2561 |
| 907 | Sedimentology | 1 | 0 | 1268 | 2051 |
| 907 | Atmospheric Physics | 1 | 0 | 2825 | 4034 |
| 907 | History of Medicine | 1 | 0 | 1058 | 1277 |
| 907 | Pediatric Rheumatology | 1 | 0 | 544 | 967 |
| 907 | Organizational learning | 1 | 0 | 1321 | 2294 |
| 907 | Erectile dysfunction | 1 | 0 | 595 | 1033 |
| 907 | Virtual reality | 1 | 0 | 859 | 1562 |
| 907 | Artificial Organs | 1 | 0 | 1398 | 2119 |
| 907 | Humanism | 1 | 0 | 157 | 192 |
| 907 | women's rights | 1 | 0 | 465 | 855 |
| 907 | local government | 1 | 0 | 664 | 1172 |
| 907 | Legislative Power | 1 | 0 | 148 | 345 |
| 907 | Air Conditioning | 1 | 0 | 469 | 879 |
| 907 | Knowledge management | 1 | 0 | 1598 | 2574 |
| 907 | Ornithology | 1 | 0 | 1784 | 2526 |
| 907 | Action Research | 1 | 0 | 526 | 1103 |
| 907 | Religion and Psychology | 1 | 0 | 1200 | 2091 |
| 907 | Substance Abuse | 1 | 0 | 2780 | 4421 |
| 907 | Military Ethics | 1 | 0 | 85 | 197 |
| 907 | Spectroscopy | 1 | 0 | 558 | 1074 |
| 907 | Cardiovascular diseases | 1 | 0 | 3194 | 4504 |
| 907 | Nuclear disarmament | 1 | 0 | 34 | 76 |
| 907 | Islamic education | 1 | 0 | 117 | 119 |
| 907 | Medical innovations | 1 | 0 | 2196 | 3634 |
| 907 | subculture | 1 | 0 | 86 | 192 |
| 907 | cooling | 1 | 0 | 137 | 240 |
| 907 | Fans | 1 | 0 | 39 | 133 |
| 907 | Social problems | 1 | 0 | 1190 | 2032 |
| 907 | vapor-liquid equilibrium | 1 | 0 | 137 | 240 |
| 907 | Middle East | 2 | 0 | 1505 | 3007 |
| 907 | drinking water | 1 | 0 | 337 | 805 |
| 907 | Croatia | 1 | 0 | 294 | 510 |
| 907 | Italian language | 1 | 0 | 271 | 242 |
| 907 | Capitalism | 1 | 0 | 460 | 856 |
| 907 | biomimicry | 1 | 0 | 343 | 707 |
| 907 | Plant diseases | 1 | 0 | 3362 | 4702 |
| 907 | Methodology | 1 | 0 | 1112 | 1922 |
| 907 | Cellulose | 1 | 0 | 1382 | 2235 |
| 907 | drug addiction | 1 | 0 | 2196 | 3552 |
| 907 | North Africa | 1 | 0 | 444 | 753 |
| 907 | crops | 1 | 0 | 377 | 703 |
| 907 | immigration | 1 | 0 | 450 | 882 |
| 907 | Nomadism | 1 | 0 | 31 | 93 |
| 907 | values | 1 | 0 | 556 | 849 |
| 907 | Refractory materials | 1 | 0 | 295 | 511 |
| 907 | alcoholism | 1 | 0 | 2859 | 4452 |
| 907 | migration policy | 1 | 0 | 463 | 974 |
| 907 | biological agents | 1 | 0 | 1459 | 2203 |
| 907 | crime | 1 | 0 | 1183 | 1805 |
| 907 | Endocrine system | 2 | 0 | 1316 | 1717 |
| 907 | Birds | 1 | 0 | 2108 | 2894 |
| 907 | Decision making | 1 | 0 | 3197 | 5117 |
| 907 | Asylum seeker | 1 | 0 | 368 | 776 |
| 907 | California | 1 | 0 | 857 | 1389 |
| 907 | Mental illness | 1 | 0 | 3951 | 5824 |
| 907 | nation-building | 1 | 0 | 86 | 237 |
| 907 | extraterrestrial environment | 1 | 0 | 1314 | 2106 |
| 907 | deviant behavior | 1 | 0 | 566 | 927 |
| 907 | hygiene | 1 | 0 | 1200 | 2216 |
| 907 | Jews | 1 | 0 | 576 | 678 |
| 907 | astronomical phenomena | 1 | 0 | 1231 | 1940 |
| 907 | Eigenvalues | 2 | 0 | 385 | 710 |
| 907 | Agriculture | 1 | 0 | 4573 | 6469 |