| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Chemistry | 3,548 | 63,831 | 18 | 209 |
| 2 | Biochemistry | 1,240 | 19,359 | 29 | 400 |
| 3 | Analytical Chemistry | 879 | 15,246 | 15 | 71 |
| 4 | Physics | 481 | 13,616 | 163 | 1.6K |
| 5 | Materials | 370 | 9,831 | 171 | 556 |
| 6 | Polymers | 441 | 8,688 | 75 | 175 |
| 7 | Science | 673 | 8,391 | 93 | 3.9K |
| 8 | Biotechnology | 227 | 7,373 | 153 | 577 |
| 9 | Biology | 162 | 7,082 | 1.5K | 4.0K |
| 10 | Molecular Biology | 398 | 6,918 | 202 | 2.2K |
| 11 | Catalysis | 335 | 6,433 | 44 | 243 |
| 12 | Nanotechnology | 134 | 6,305 | 694 | 920 |
| 13 | polymerization | 333 | 6,050 | 80 | 188 |
| 14 | Organic Chemistry | 242 | 5,159 | 72 | 191 |
| 15 | Colloids | 351 | 4,613 | 17 | 189 |
| 16 | Bioengineering | 74 | 4,298 | 384 | 708 |
| 17 | Physical Chemistry | 138 | 4,061 | 79 | 247 |
| 18 | Biocompatible Materials | 108 | 4,003 | 519 | 797 |
| 19 | Biomedical Engineering | 103 | 3,898 | 219 | 252 |
| 20 | Biophysics | 388 | 3,782 | 34 | 471 |
| 21 | Electrochemistry | 242 | 3,752 | 11 | 64 |
| 22 | Materials Science | 149 | 3,656 | 397 | 866 |
| 23 | Organometallic compounds | 109 | 3,600 | 28 | 37 |
| 24 | Solid State Physics | 143 | 3,423 | 210 | 320 |
| 25 | Condensed Matter | 126 | 3,361 | 239 | 344 |
| 26 | Microbiology | 163 | 3,273 | 750 | 2.8K |
| 27 | Nanostructured Materials | 110 | 3,068 | 290 | 542 |
| 28 | Surface Chemistry | 166 | 2,929 | 54 | 314 |
| 29 | Pharmaceutical Chemistry | 138 | 2,864 | 229 | 636 |
| 30 | Bioorganic chemistry | 232 | 2,838 | 31 | 267 |
| 31 | Soviet Union | 243 | 2,759 | 14 | 11 |
| 32 | Computational Chemistry | 29 | 2,487 | 42 | 137 |
| 33 | Natural history | 22 | 2,422 | 2.1K | 5.8K |
| 34 | nanoscience | 43 | 2,301 | 870 | 1.1K |
| 35 | Biochemical Engineering | 21 | 2,209 | 432 | 739 |
| 36 | Optical materials | 65 | 2,207 | 381 | 657 |
| 37 | Computer-Aided Design | 19 | 2,204 | 62 | 16 |
| 38 | Chemical Engineering | 129 | 2,081 | 197 | 830 |
| 39 | Medical Technology | 12 | 1,914 | 187 | 20 |
| 40 | Medical innovations | 11 | 1,913 | 403 | 304 |
| 41 | Pollution | 64 | 1,876 | 778 | 1.9K |
| 42 | Technology | 43 | 1,840 | 424 | 353 |
| 43 | Electrochemical Analysis | 27 | 1,774 | 89 | 35 |
| 44 | Spectrum analysis | 120 | 1,741 | 283 | 604 |
| 45 | nucleic acids | 81 | 1,729 | 106 | 1.5K |
| 46 | Informatics | 29 | 1,698 | 49 | 87 |
| 47 | Petroleum | 234 | 1,682 | 2 | 2 |
| 48 | Solid State Chemistry | 115 | 1,658 | 10 | 30 |
| 49 | Physical organic chemistry | 86 | 1,651 | 41 | 81 |
| 50 | Clinical Chemistry | 44 | 1,650 | 488 | 645 |
| 51 | Hydrocarbons | 234 | 1,635 | 2 | 2 |
| 52 | Organometallic chemistry | 100 | 1,555 | 14 | 33 |
| 53 | Bioinorganic chemistry | 85 | 1,509 | 24 | 68 |
| 54 | Medicine | 69 | 1,462 | 4.7K | 13.5K |
| 55 | Nuclear Physics | 100 | 1,437 | 449 | 864 |
| 56 | proteins | 40 | 1,425 | 472 | 628 |
| 57 | Cheminformatics | 17 | 1,377 | 20 | 48 |
| 58 | Chromatographic analysis | 83 | 1,300 | 80 | 122 |
| 59 | Cytology | 47 | 1,286 | 2.2K | 7.1K |
| 60 | Research | 56 | 1,281 | 4.1K | 8.1K |
| 61 | Environment | 42 | 1,237 | 1.1K | 3.2K |
| 62 | Chromatography | 73 | 1,219 | 60 | 106 |
| 63 | Crystallography | 173 | 1,210 | 15 | 127 |
| 64 | Cell Biology | 39 | 1,205 | 2.5K | 7.6K |
| 65 | Drug delivery systems | 9 | 1,201 | 658 | 259 |
| 66 | Liquid Crystals | 98 | 1,171 | 17 | 16 |
| 67 | Environmental Health | 28 | 1,132 | 2.0K | 2.8K |
| 68 | Statistical physics | 56 | 1,121 | 424 | 673 |
| 69 | Mass Spectrometry | 72 | 1,095 | 38 | 201 |
| 70 | Chemical kinetics | 119 | 1,079 | 6 | 17 |
| 71 | Environmental Engineering | 19 | 1,017 | 1.6K | 2.0K |
| 72 | Chemical structure | 106 | 987 | 4 | 7 |
| 73 | Bioenergetics | 40 | 985 | 13 | 86 |
| 74 | protein | 15 | 972 | 743 | 515 |
| 75 | Water pollution | 26 | 953 | 426 | 631 |
| 76 | Radiochemistry | 108 | 939 | 17 | 35 |
| 76 | biopolymers | 39 | 939 | 106 | 197 |
| 78 | Ecology | 42 | 927 | 2.1K | 5.3K |
| 79 | Biosensors | 20 | 918 | 269 | 382 |
| 80 | Membranes | 44 | 909 | 39 | 260 |
| 81 | Pharmaceutical Technology | 38 | 890 | 180 | 345 |
| 81 | Virology | 30 | 890 | 1.7K | 6.2K |
| 83 | sanitation | 14 | 881 | 1.1K | 1.6K |
| 84 | catalytic activity | 37 | 877 | 72 | 162 |
| 85 | Heterocyclic chemistry | 65 | 876 | 23 | 14 |
| 86 | Genetic engineering | 9 | 871 | 1.5K | 787 |
| 87 | Analytical Biochemistry | 48 | 868 | 32 | 130 |
| 88 | Pharmacology | 20 | 834 | 4.9K | 4.5K |
| 89 | Metals | 155 | 827 | 25 | 134 |
| 90 | fuel cells | 18 | 824 | 588 | 832 |
| 91 | Agricultural Chemistry | 21 | 822 | 1.0K | 971 |
| 92 | Magnetic Materials | 40 | 821 | 180 | 380 |
| 93 | Bioelectronics | 15 | 792 | 287 | 382 |
| 94 | Industrial Microbiology | 8 | 775 | 1.5K | 637 |
| 95 | Green Chemistry | 22 | 722 | 725 | 1.1K |
| 96 | Quantum Chemistry | 77 | 713 | 16 | 66 |
| 97 | Electrophoresis | 28 | 698 | 295 | 353 |
| 98 | Energy metabolism | 29 | 678 | 20 | 134 |
| 99 | Waste management | 21 | 675 | 173 | 121 |
| 99 | Water Purification | 21 | 675 | 148 | 113 |
| 99 | Water quality management | 21 | 675 | 285 | 225 |
| 99 | miniaturization | 20 | 675 | 844 | 2.1K |
| 103 | Photonics | 23 | 646 | 621 | 974 |
| 104 | Chemical analysis | 28 | 637 | 171 | 269 |
| 105 | Optics | 47 | 607 | 800 | 1.4K |
| 106 | Molecular structure | 40 | 598 | 188 | 1.5K |
| 107 | Molecules | 45 | 591 | 80 | 312 |
| 108 | Biomolecules | 16 | 590 | 46 | 234 |
| 109 | environmental pollution | 29 | 587 | 989 | 2.4K |
| 110 | Nuclear Chemistry | 63 | 556 | 33 | 70 |
| 111 | Proteome | 19 | 541 | 385 | 1.1K |
| 112 | Molecular Pharmacology | 7 | 535 | 854 | 595 |
| 113 | Information Systems | 9 | 526 | 181 | 173 |
| 113 | Documentation | 9 | 526 | 24 | 51 |
| 115 | Drug design | 17 | 524 | 302 | 504 |
| 116 | Nanostructures | 41 | 510 | 102 | 1.4K |
| 117 | Environmental Chemistry | 26 | 491 | 331 | 1.7K |
| 117 | Cardiovascular system | 1 | 491 | 15.5K | 6.5K |
| 119 | Calorimetry | 37 | 478 | 68 | 132 |
| 119 | Thermal analysis | 37 | 478 | 68 | 132 |
| 121 | Botany | 14 | 473 | 3.5K | 4.5K |
| 122 | synthesis | 34 | 462 | 105 | 119 |
| 123 | Crystal growth | 35 | 460 | 93 | 412 |
| 124 | Computational Biology | 20 | 448 | 1.5K | 4.3K |
| 125 | Bioinformatics | 19 | 447 | 1.1K | 3.3K |
| 126 | Microelectronics | 6 | 441 | 2.3K | 2.6K |
| 127 | Bacteriology | 13 | 439 | 965 | 1.8K |
| 128 | Immunology | 18 | 424 | 4.9K | 10.4K |
| 129 | Plastics | 48 | 421 | 70 | 247 |
| 129 | United Kingdom | 13 | 421 | 844 | 1.6K |
| 131 | Photochemistry | 34 | 413 | 78 | 447 |
| 132 | Environmental Management | 15 | 398 | 531 | 1.4K |
| 133 | Magnetic Resonance Spectroscopy | 37 | 389 | 85 | 448 |
| 134 | Sustainable Engineering | 9 | 377 | 1.4K | 1.4K |
| 135 | Neurology | 7 | 373 | 20.6K | 22.3K |
| 136 | Molecular Spectroscopy | 29 | 371 | 132 | 385 |
| 137 | Ion Exchange | 14 | 368 | 23 | 22 |
| 137 | Solvent extraction | 14 | 368 | 23 | 22 |
| 139 | enzymes | 18 | 365 | 233 | 721 |
| 140 | Neurophysiology | 6 | 363 | 7.0K | 6.9K |
| 140 | RNA | 15 | 363 | 211 | 593 |
| 142 | Toxicology | 20 | 362 | 2.8K | 5.9K |
| 143 | Catalysts | 18 | 361 | 127 | 206 |
| 144 | drug evaluation | 11 | 352 | 415 | 384 |
| 145 | actuators | 4 | 351 | 678 | 183 |
| 145 | transducers | 4 | 351 | 678 | 183 |
| 147 | Nanotubes | 33 | 349 | 3 | 3 |
| 148 | Soft Condensed Matter | 24 | 348 | 170 | 556 |
| 149 | Soil Science | 42 | 345 | 124 | 566 |
| 150 | Environmental monitoring | 18 | 334 | 1.2K | 3.2K |
| 151 | Medical Laboratory Science | 12 | 321 | 729 | 1.7K |
| 152 | Biomass Energy | 8 | 317 | 1.5K | 2.1K |
| 153 | Nanoparticles | 21 | 315 | 660 | 2.2K |
| 154 | Industrial Engineering | 12 | 312 | 962 | 1.2K |
| 155 | Glass | 22 | 299 | 312 | 843 |
| 156 | Geophysics | 7 | 291 | 3.7K | 3.2K |
| 157 | cell membrane | 10 | 285 | 129 | 359 |
| 158 | nuclear magnetic resonance | 29 | 283 | 160 | 724 |
| 159 | Water | 5 | 278 | 2.0K | 2.1K |
| 160 | Fluid Mechanics | 3 | 263 | 3.2K | 1.6K |
| 161 | nucleotides | 36 | 255 | 20 | 47 |
| 162 | Surface-Active Agents | 12 | 249 | 192 | 683 |
| 162 | Surface properties | 12 | 249 | 193 | 684 |
| 164 | Electronics | 22 | 244 | 1.3K | 2.8K |
| 165 | Heterocyclic compounds | 38 | 230 | 89 | 231 |
| 166 | Ceramics | 13 | 228 | 702 | 1.2K |
| 167 | bioluminescence | 10 | 224 | 117 | 49 |
| 168 | Nonlinear Dynamics | 9 | 220 | 1.4K | 1.7K |
| 169 | Superconductors | 15 | 214 | 176 | 198 |
| 169 | Protective coatings | 49 | 214 | 3 | 10 |
| 171 | Photobiology | 21 | 212 | 17 | 226 |
| 172 | Light | 12 | 207 | 305 | 1.6K |
| 173 | Microbial Ecology | 2 | 206 | 8.8K | 6.4K |
| 173 | pottery | 10 | 206 | 669 | 1.2K |
| 175 | Luminescence | 8 | 201 | 217 | 99 |
| 176 | Protein engineering | 6 | 200 | 88 | 190 |
| 176 | molecular design | 6 | 200 | 87 | 181 |
| 178 | Geochemistry | 18 | 195 | 223 | 613 |
| 179 | Histochemistry | 3 | 192 | 2.5K | 1.2K |
| 180 | Cytogenetics | 31 | 189 | 428 | 6.9K |
| 180 | Metallurgy | 16 | 189 | 577 | 1.1K |
| 180 | Planets | 1 | 189 | 5.9K | 2.4K |
| 183 | pollutants | 13 | 188 | 517 | 1.9K |
| 183 | Environmental pollutants | 13 | 188 | 770 | 2.4K |
| 185 | Educational Psychology | 13 | 187 | 367 | 797 |
| 185 | Ultrasonics | 3 | 187 | 1.1K | 765 |
| 185 | Sonochemistry | 3 | 187 | 506 | 492 |
| 185 | Minerals | 13 | 187 | 60 | 182 |
| 189 | Oxidation-reduction | 2 | 183 | 2.2K | 2.1K |
| 190 | Neurobiology | 2 | 181 | 8.5K | 5.8K |
| 190 | Immunopharmacology | 4 | 181 | 1.0K | 703 |
| 192 | Signal Transduction | 2 | 178 | 5.2K | 3.3K |
| 193 | gene therapy | 5 | 177 | 1.5K | 2.9K |
| 194 | food contamination | 9 | 175 | 279 | 388 |
| 195 | biomedicine | 3 | 172 | 1.0K | 562 |
| 196 | Antibodies | 6 | 171 | 110 | 289 |
| 196 | Antigens | 6 | 171 | 434 | 658 |
| 198 | Superconductivity | 8 | 170 | 48 | 66 |
| 199 | soil conservation | 12 | 165 | 107 | 346 |
| 200 | Energy Storage | 17 | 164 | 458 | 1.9K |
| 201 | histological techniques | 1 | 163 | 4.1K | 1.6K |
| 202 | Semiconductors | 28 | 161 | 54 | 199 |
| 203 | Plasma polymerization | 3 | 159 | 217 | 149 |
| 204 | Ceramic materials | 16 | 157 | 79 | 278 |
| 204 | Microscopy | 23 | 157 | 255 | 1.3K |
| 206 | Genetics | 9 | 155 | 7.5K | 20.3K |
| 206 | Immunochemistry | 10 | 155 | 202 | 676 |
| 208 | Antioxidants | 1 | 153 | 3.8K | 2.1K |
| 209 | Geology | 23 | 151 | 837 | 2.6K |
| 209 | Structure-activity relationship | 14 | 151 | 24 | 535 |
| 211 | Neuroimmunology | 2 | 145 | 1.6K | 1.7K |
| 211 | Neuropharmacology | 2 | 145 | 1.6K | 1.1K |
| 213 | Proteomics | 2 | 144 | 3.3K | 2.3K |
| 213 | Crystallization | 20 | 144 | 46 | 188 |
| 215 | nuclear magnetic resonance spectroscopy | 18 | 142 | 173 | 626 |
| 216 | Engineering | 10 | 141 | 2.2K | 3.9K |
| 217 | Enzyme | 5 | 139 | 100 | 173 |
| 218 | lasers | 16 | 138 | 579 | 1.3K |
| 219 | Radiation | 11 | 137 | 445 | 1.2K |
| 219 | Evolution | 8 | 137 | 1.8K | 4.8K |
| 221 | Therapeutics | 2 | 136 | 9.3K | 8.1K |
| 221 | drug therapy | 2 | 136 | 10.0K | 7.3K |
| 223 | Combinatorial chemistry | 9 | 135 | 477 | 1.9K |
| 224 | food technology | 5 | 133 | 2.4K | 3.1K |
| 225 | Diagnostic Imaging | 7 | 131 | 2.5K | 4.2K |
| 225 | soil pollution | 10 | 131 | 59 | 203 |
| 227 | environmental protection | 5 | 128 | 3.7K | 6.4K |
| 228 | NMR | 13 | 124 | 86 | 252 |
| 228 | magnetic resonance | 13 | 124 | 91 | 281 |
| 230 | cell movement | 3 | 119 | 362 | 571 |
| 231 | Oxidative stress | 5 | 118 | 1.1K | 2.9K |
| 231 | Composite Materials | 4 | 118 | 1.4K | 1.1K |
| 233 | Ferroelectricity | 23 | 114 | 104 | 433 |
| 234 | Plant physiology | 6 | 113 | 2.6K | 5.9K |
| 234 | Detectors | 5 | 113 | 1.1K | 901 |
| 236 | Cytoskeleton | 2 | 112 | 629 | 564 |
| 236 | viruses | 4 | 112 | 3.6K | 6.1K |
| 238 | Environmental Microbiology | 9 | 111 | 793 | 4.4K |
| 238 | Molecular evolution | 6 | 111 | 1.6K | 4.0K |
| 240 | Energy Conversion | 8 | 110 | 1.3K | 3.8K |
| 241 | Molecular recognition | 7 | 109 | 49 | 271 |
| 241 | Chromosomes | 6 | 109 | 536 | 1.5K |
| 243 | Environmental Policy | 4 | 108 | 3.5K | 6.9K |
| 244 | Computer Graphics | 5 | 106 | 571 | 761 |
| 245 | Developmental Biology | 4 | 105 | 6.3K | 11.9K |
| 246 | Microbial Metabolism | 3 | 104 | 146 | 247 |
| 247 | Geography | 2 | 103 | 4.1K | 3.0K |
| 247 | United States | 1 | 103 | 30.4K | 11.5K |
| 249 | Astronomy | 35 | 101 | 998 | 3.2K |
| 249 | immunoassay | 7 | 101 | 58 | 73 |
| 251 | Radioisotopes | 5 | 98 | 673 | 509 |
| 252 | Thin Films | 9 | 96 | 91 | 245 |
| 253 | Fluorescence | 11 | 94 | 68 | 325 |
| 254 | Bioremediation | 1 | 90 | 1.1K | 433 |
| 255 | Genetic therapy | 1 | 89 | 9.3K | 6.9K |
| 255 | investigative techniques | 2 | 89 | 167 | 190 |
| 255 | gene transfer | 1 | 89 | 1.1K | 490 |
| 255 | genetic transformation | 1 | 89 | 1.1K | 490 |
| 259 | Cellular senescence | 4 | 88 | 848 | 2.0K |
| 260 | Nanochemistry | 6 | 86 | 915 | 1.4K |
| 261 | Genomics | 2 | 85 | 15.0K | 14.1K |
| 261 | Chromosome mapping | 2 | 85 | 5.7K | 6.2K |
| 261 | gene mapping | 2 | 85 | 7.0K | 8.2K |
| 264 | Clinical Biochemistry | 17 | 84 | 183 | 2.5K |
| 264 | biological factors | 5 | 84 | 2.9K | 5.7K |
| 264 | Microorganisms | 3 | 84 | 2.2K | 4.2K |
| 267 | Inorganic Chemistry | 6 | 83 | 14 | 80 |
| 267 | Stereochemistry | 1 | 83 | 23 | 28 |
| 269 | Biodiversity | 4 | 82 | 2.9K | 4.4K |
| 270 | Molecular Genetics | 4 | 81 | 3.7K | 7.4K |
| 271 | plant molecular biology | 2 | 79 | 4.7K | 6.7K |
| 271 | Plants | 2 | 79 | 6.2K | 7.3K |
| 273 | Physiology | 6 | 78 | 11.2K | 25.5K |
| 273 | Gene library | 2 | 78 | 189 | 244 |
| 275 | Biotransformation | 4 | 77 | 61 | 78 |
| 276 | optical devices | 5 | 76 | 202 | 325 |
| 277 | Food additives | 2 | 74 | 1.5K | 1.2K |
| 278 | Environmental Toxicology | 4 | 73 | 3.8K | 9.0K |
| 278 | Agricultural Ecology | 1 | 73 | 3.5K | 2.9K |
| 278 | Raman spectroscopy | 7 | 73 | 207 | 725 |
| 278 | environmental exposure | 3 | 73 | 2.7K | 4.3K |
| 278 | Trace elements | 4 | 73 | 177 | 664 |
| 283 | Diagnostic microbiology | 1 | 71 | 4.9K | 5.6K |
| 284 | Drug targeting | 2 | 69 | 529 | 751 |
| 284 | Flow cytometry | 2 | 69 | 855 | 1.1K |
| 286 | Plant diseases | 4 | 68 | 2.8K | 4.0K |
| 287 | Liquid chromatography | 7 | 67 | 258 | 388 |
| 288 | Materials Engineering | 1 | 62 | 1.7K | 458 |
| 288 | Gene expression regulation | 4 | 62 | 1.9K | 5.8K |
| 288 | Genetic regulation | 4 | 62 | 2.5K | 9.1K |
| 291 | Hydrodynamics | 3 | 61 | 149 | 172 |
| 291 | Mechanics | 3 | 61 | 1.4K | 1.3K |
| 293 | peptides | 9 | 60 | 392 | 1.7K |
| 293 | cytokines | 3 | 60 | 2.3K | 4.9K |
| 293 | free radicals | 2 | 60 | 3.7K | 7.1K |
| 296 | Steroids | 3 | 59 | 1.1K | 2.1K |
| 297 | phase diagrams | 9 | 58 | 54 | 118 |
| 297 | Atomic spectroscopy | 3 | 58 | 781 | 830 |
| 299 | Marine Biology | 4 | 57 | 3.0K | 5.5K |
| 299 | Nervous system | 3 | 57 | 8.3K | 17.3K |
| 301 | Pharmacy | 7 | 56 | 2.3K | 7.6K |
| 301 | Biogeochemistry | 3 | 56 | 1.0K | 2.1K |
| 301 | Chemical industry | 5 | 56 | 1.2K | 1.9K |
| 304 | Mathematics | 5 | 55 | 8.4K | 8.9K |
| 304 | Environmental Law | 2 | 55 | 2.2K | 4.7K |
| 304 | Structural biology | 2 | 55 | 80 | 207 |
| 307 | Histology | 4 | 54 | 4.7K | 11.6K |
| 307 | Metabolic diseases | 2 | 54 | 15.1K | 24.2K |
| 309 | energy conservation | 6 | 52 | 650 | 2.7K |
| 309 | Synchrotron Radiation | 5 | 52 | 120 | 331 |
| 309 | Earth Sciences | 6 | 52 | 2.1K | 4.6K |
| 312 | Mechanical Engineering | 2 | 50 | 4.3K | 2.6K |
| 312 | Atmospheric Chemistry | 1 | 50 | 1.9K | 2.0K |
| 312 | Plant tissue culture | 1 | 50 | 1.9K | 1.8K |
| 312 | Plant cell culture | 1 | 50 | 1.9K | 1.8K |
| 316 | genome | 4 | 49 | 4.6K | 15.2K |
| 316 | venom | 2 | 49 | 701 | 1.1K |
| 316 | Toxins | 2 | 49 | 962 | 1.3K |
| 319 | Brain | 2 | 48 | 10.5K | 13.8K |
| 320 | Environmental Geology | 1 | 47 | 2.6K | 1.9K |
| 320 | Engineering Geology | 1 | 47 | 2.5K | 1.9K |
| 320 | natural gas | 1 | 47 | 198 | 56 |
| 320 | natural disasters | 1 | 47 | 2.6K | 2.1K |
| 324 | drugs | 5 | 44 | 2.1K | 7.3K |
| 325 | Supramolecular chemistry | 3 | 43 | 250 | 262 |
| 325 | plant viruses | 1 | 43 | 809 | 908 |
| 327 | Mineralogy | 6 | 42 | 831 | 2.2K |
| 327 | Bioprinting | 1 | 42 | 102 | 94 |
| 329 | Anatomy | 1 | 41 | 13.7K | 15.1K |
| 329 | Embryology | 2 | 41 | 7.9K | 14.4K |
| 329 | Cell differentiation | 1 | 41 | 17.5K | 22.8K |
| 329 | Growth | 1 | 41 | 7.6K | 10.3K |
| 333 | Neurochemistry | 9 | 40 | 3.9K | 18.9K |
| 333 | Medical genetics | 2 | 40 | 20.3K | 34.2K |
| 333 | Kinetics | 7 | 40 | 224 | 893 |
| 336 | Electrical Engineering | 26 | 39 | 889 | 4.1K |
| 336 | Electron Microscopy | 4 | 39 | 220 | 1.2K |
| 338 | Geobiology | 3 | 37 | 471 | 1.2K |
| 338 | Methodology | 6 | 37 | 94 | 509 |
| 338 | Methods | 6 | 37 | 42 | 157 |
| 341 | Petroleum Engineering | 1 | 36 | 649 | 499 |
| 341 | Immunotherapy | 2 | 36 | 7.5K | 13.9K |
| 341 | Molecular cloning | 2 | 36 | 3.4K | 5.5K |
| 341 | Genetic recombination | 2 | 36 | 3.2K | 5.4K |
| 341 | Solutions | 7 | 36 | 177 | 513 |
| 341 | Recombinant DNA | 2 | 36 | 4.0K | 6.4K |
| 347 | Nanobiotechnology | 3 | 34 | 471 | 2.0K |
| 347 | Hemostasis | 5 | 34 | 456 | 2.7K |
| 347 | Thrombosis | 5 | 34 | 2.1K | 14.8K |
| 347 | Integrated Circuits | 2 | 34 | 1.1K | 591 |
| 347 | Land use | 2 | 34 | 891 | 1.7K |
| 347 | land degradation | 2 | 34 | 558 | 1.2K |
| 347 | Insects | 2 | 34 | 2.2K | 3.0K |
| 347 | degradation | 2 | 34 | 558 | 1.2K |
| 355 | Systems Biology | 3 | 33 | 3.6K | 8.2K |
| 355 | Aging | 1 | 33 | 17.2K | 17.1K |
| 357 | X-ray crystallography | 1 | 32 | 2.1K | 1.5K |
| 357 | cell interaction | 2 | 32 | 3.5K | 7.8K |
| 357 | Cell communication | 2 | 32 | 2.0K | 4.9K |
| 357 | silicon | 3 | 32 | 250 | 401 |
| 361 | Oceanography | 2 | 31 | 3.0K | 4.9K |
| 361 | Biological Systems | 4 | 31 | 433 | 2.5K |
| 361 | Russia | 9 | 31 | 37 | 86 |
| 361 | natural products | 7 | 31 | 1.9K | 8.4K |
| 361 | heredity | 3 | 31 | 1.2K | 3.2K |
| 361 | freshwater biology | 2 | 31 | 1.3K | 2.3K |
| 367 | Hematology | 1 | 29 | 32.0K | 39.3K |
| 367 | Diffraction | 13 | 29 | 14 | 117 |
| 367 | Powder Metallurgy | 14 | 29 | 41 | 215 |
| 367 | Alternative Medicine | 2 | 29 | 5.0K | 8.7K |
| 367 | complementary therapies | 2 | 29 | 5.2K | 8.8K |
| 372 | toxicity testing | 1 | 28 | 2.4K | 2.6K |
| 373 | Analytical Toxicology | 2 | 27 | 467 | 952 |
| 374 | Enzyme inhibitors | 2 | 26 | 905 | 1.6K |
| 374 | Korea | 1 | 26 | 844 | 532 |
| 374 | Entomology | 1 | 26 | 7.1K | 6.6K |
| 377 | Cell surface receptors | 1 | 25 | 314 | 347 |
| 378 | Endocrinology | 1 | 24 | 29.4K | 40.7K |
| 378 | Plant Morphology | 2 | 24 | 498 | 982 |
| 378 | Nanophotonics | 1 | 24 | 1.0K | 1.4K |
| 378 | Diabetes mellitus | 1 | 24 | 14.7K | 21.4K |
| 378 | Inflammation | 1 | 24 | 7.2K | 10.1K |
| 378 | cell adhesion molecules | 1 | 24 | 2.3K | 3.8K |
| 378 | Diabetes | 1 | 24 | 15.7K | 22.1K |
| 385 | Data Mining | 1 | 23 | 4.1K | 4.7K |
| 385 | Biopharmaceutics | 1 | 23 | 4.6K | 6.2K |
| 385 | Public Policy | 3 | 23 | 1.9K | 5.9K |
| 385 | Systems Analysis | 3 | 23 | 924 | 2.4K |
| 385 | Adsorption | 4 | 23 | 96 | 421 |
| 385 | System analysis | 3 | 23 | 3.0K | 6.1K |
| 385 | data collection | 1 | 23 | 2.6K | 3.3K |
| 392 | Atmospheric Physics | 2 | 22 | 2.7K | 5.2K |
| 392 | Ocean-atmosphere interaction | 2 | 22 | 131 | 130 |
| 392 | biocatalysis | 1 | 22 | 514 | 1.1K |
| 392 | Homogeneous catalysis | 1 | 22 | 514 | 1.1K |
| 392 | Heterogeneous catalysis | 1 | 22 | 514 | 1.1K |
| 397 | Quantum electronics | 6 | 21 | 1.1K | 3.3K |
| 397 | Electromagnetism | 2 | 21 | 1.5K | 2.8K |
| 397 | Parasitology | 1 | 21 | 8.4K | 9.7K |
| 397 | Parasitic Diseases | 1 | 21 | 7.2K | 9.8K |
| 397 | Porous materials | 2 | 21 | 1.1K | 1.8K |
| 402 | Evidence-Based Medicine | 1 | 20 | 5.3K | 6.6K |
| 402 | isomerism | 3 | 20 | 399 | 1.2K |
| 402 | antibiotics | 2 | 20 | 579 | 1.4K |
| 402 | Chirality | 3 | 20 | 399 | 1.2K |
| 406 | soil microbiology | 1 | 19 | 4.0K | 7.1K |
| 406 | ozone | 4 | 19 | 54 | 304 |
| 406 | Cancer | 2 | 19 | 27.8K | 60.8K |
| 409 | Ore deposits | 1 | 18 | 322 | 430 |
| 409 | Agriculture | 4 | 18 | 2.4K | 8.5K |
| 411 | Mathematical Physics | 7 | 17 | 1.7K | 5.3K |
| 411 | Emulsions | 2 | 17 | 604 | 1.1K |
| 411 | cell physiology | 2 | 17 | 8.1K | 22.0K |
| 411 | Refractory materials | 1 | 17 | 287 | 117 |
| 415 | Nanomedicine | 2 | 16 | 302 | 2.1K |
| 415 | Nuclear Medicine | 1 | 16 | 4.7K | 6.3K |
| 415 | Astrophysics | 5 | 16 | 2.6K | 6.1K |
| 415 | Gene expression | 1 | 16 | 1.5K | 2.8K |
| 415 | Radiobiology | 1 | 16 | 9.5K | 12.4K |
| 415 | China | 1 | 16 | 12.1K | 14.0K |
| 415 | Cell metabolism | 1 | 16 | 4.0K | 8.5K |
| 422 | Hydrology | 1 | 15 | 8.3K | 11.0K |
| 422 | Marine Pollution | 1 | 15 | 2.1K | 4.3K |
| 422 | Optoelectronic devices | 2 | 15 | 1.1K | 1.4K |
| 422 | Chemical processes | 3 | 15 | 676 | 2.2K |
| 422 | infection | 2 | 15 | 4.6K | 12.2K |
| 422 | water supply | 1 | 15 | 3.1K | 5.3K |
| 422 | Alloys | 2 | 15 | 354 | 438 |
| 422 | Peptide | 3 | 15 | 311 | 1.1K |
| 422 | Microstructure | 2 | 15 | 147 | 293 |
| 422 | Radio | 2 | 15 | 2.0K | 4.0K |
| 422 | biological agents | 4 | 15 | 625 | 1.1K |
| 422 | Testing | 14 | 15 | 5 | 84 |
| 422 | amino acids | 2 | 15 | 1.1K | 3.9K |
| 422 | pigments | 1 | 15 | 41 | 95 |
| 436 | Electrophysiology | 1 | 14 | 2.8K | 5.5K |
| 436 | ecosystem | 2 | 14 | 2.3K | 6.9K |
| 436 | biological monitoring | 1 | 14 | 1.3K | 2.3K |
| 436 | Scanning electron microscopy | 1 | 14 | 381 | 642 |
| 436 | Phylogeny | 1 | 14 | 2.4K | 4.3K |
| 441 | Thermodynamics | 3 | 13 | 499 | 1.2K |
| 441 | irreversible processes | 3 | 13 | 24 | 115 |
| 441 | Cell death | 1 | 13 | 8.9K | 15.5K |
| 441 | Nonequilibrium thermodynamics | 3 | 13 | 24 | 115 |
| 445 | Public Health | 1 | 12 | 37.0K | 50.9K |
| 445 | Radiation Protection | 3 | 12 | 479 | 1.3K |
| 445 | wood | 1 | 12 | 946 | 1.4K |
| 445 | hygiene | 1 | 12 | 1.6K | 2.9K |
| 449 | Petrology | 6 | 11 | 368 | 1.8K |
| 449 | Renewable Energy Sources | 2 | 11 | 2.2K | 6.7K |
| 449 | Graphene | 1 | 11 | 165 | 495 |
| 449 | Entropy | 1 | 11 | 3.7K | 4.5K |
| 449 | Liposomes | 1 | 11 | 1.2K | 2.2K |
| 449 | extraterrestrial environment | 1 | 11 | 231 | 557 |
| 449 | astronomical phenomena | 1 | 11 | 125 | 320 |
| 456 | Serology | 1 | 10 | 1.4K | 2.5K |
| 456 | Magnetic Resonance Imaging | 1 | 10 | 1.4K | 2.9K |
| 456 | Algebra | 2 | 10 | 1.7K | 1.9K |
| 456 | Agricultural Biotechnology | 1 | 10 | 211 | 297 |
| 456 | Fluorescence spectroscopy | 1 | 10 | 995 | 2.1K |
| 456 | Sound | 1 | 10 | 2.2K | 2.9K |
| 462 | radiative transfer | 3 | 9 | 49 | 243 |
| 462 | Substance Abuse | 1 | 9 | 6.7K | 10.8K |
| 462 | Host-parasite interactions | 1 | 9 | 6.9K | 14.3K |
| 462 | Virulence | 1 | 9 | 6.9K | 14.1K |
| 462 | Immunity | 1 | 9 | 15.7K | 28.2K |
| 467 | Paleoclimatology | 1 | 8 | 1.0K | 2.0K |
| 467 | particles | 3 | 8 | 476 | 3.3K |
| 467 | Insect biochemistry | 1 | 8 | 1.1K | 2.2K |
| 470 | Clinical Immunology | 1 | 7 | 6.6K | 13.5K |
| 470 | Environmental Geochemistry | 2 | 7 | 531 | 2.3K |
| 470 | Infrared spectroscopy | 1 | 7 | 21 | 117 |
| 470 | Developmental Immunology | 1 | 7 | 3.1K | 7.5K |
| 474 | Oncology | 1 | 6 | 17.9K | 33.6K |
| 474 | Information Technology | 1 | 6 | 5.6K | 9.6K |
| 474 | Radiopharmaceuticals | 1 | 6 | 1.3K | 2.1K |
| 474 | Origin of life | 1 | 6 | 283 | 616 |
| 474 | X-ray spectroscopy | 2 | 6 | 157 | 670 |
| 474 | Asymmetric synthesis | 2 | 6 | 158 | 483 |
| 474 | biological evolution | 1 | 6 | 10.0K | 19.7K |
| 474 | Organelle biogenesis | 1 | 6 | 421 | 877 |
| 474 | Information Science | 1 | 6 | 2.3K | 5.2K |
| 483 | Biomechanics | 3 | 5 | 2.5K | 12.7K |
| 483 | Ecosystem management | 1 | 5 | 1.3K | 2.9K |
| 483 | Aquatic ecosystems | 1 | 5 | 320 | 718 |
| 483 | Zeolites | 1 | 5 | 25 | 142 |
| 483 | Lipids | 1 | 5 | 6.1K | 13.8K |
| 483 | Iron | 1 | 5 | 921 | 1.5K |
| 483 | Asia | 2 | 5 | 4.4K | 13.3K |
| 483 | Japan | 1 | 5 | 8.5K | 12.8K |
| 483 | Aquatic ecology | 1 | 5 | 2.2K | 4.7K |
| 492 | Medicinal plants | 1 | 4 | 5.2K | 11.7K |
| 492 | risk factors | 1 | 4 | 1.9K | 4.9K |
| 492 | Cardiovascular diseases | 1 | 4 | 7.4K | 15.8K |
| 492 | Environmental forensics | 1 | 4 | 120 | 400 |
| 492 | Sulfur | 1 | 4 | 298 | 578 |
| 497 | Nanoelectronics | 1 | 3 | 955 | 1.9K |
| 497 | Inorganic Polymers | 1 | 3 | 63 | 132 |
| 497 | Organometallic polymers | 1 | 3 | 63 | 132 |
| 500 | Mathematics Education | 1 | 2 | 1.1K | 1.7K |
| 500 | Neuropsychology | 3 | 2 | 6.2K | 25.5K |
| 500 | Optoelectronics | 1 | 2 | 810 | 1.5K |
| 500 | Psychopharmacology | 3 | 2 | 4.7K | 18.7K |
| 500 | Terahertz Technology | 1 | 2 | 195 | 475 |
| 500 | radiation monitoring | 2 | 2 | 644 | 2.5K |
| 500 | Photovoltaic Cells | 1 | 2 | 388 | 1.3K |
| 500 | Radiation dosimetry | 2 | 2 | 493 | 2.1K |
| 508 | Engineering Mathematics | 1 | 1 | 9.4K | 17.2K |
| 508 | Seismology | 1 | 1 | 882 | 1.8K |
| 508 | Manufacturing Processes | 1 | 1 | 5.1K | 9.6K |
| 508 | Probability | 1 | 1 | 1.5K | 3.9K |
| 508 | Risk Management | 2 | 1 | 843 | 5.3K |
| 508 | Nuclear Fusion | 1 | 1 | 461 | 860 |
| 508 | Emerging infectious diseases | 1 | 1 | 1.1K | 3.4K |
| 508 | Volcanism | 1 | 1 | 26 | 51 |
| 508 | patents | 1 | 1 | 208 | 871 |
| 508 | Financial management | 1 | 1 | 1.0K | 3.3K |
| 508 | Risk | 1 | 1 | 1.4K | 4.1K |
| 508 | Volcanoes | 1 | 1 | 375 | 816 |
| 508 | Central Asia | 1 | 1 | 259 | 832 |
| 508 | adhesives | 3 | 1 | 336 | 2.9K |
| 508 | fusion reactors | 1 | 1 | 295 | 590 |
| 523 | Nuclear Energy | 1 | 0 | 1.5K | 3.5K |
| 523 | Pharmacognosy | 1 | 0 | 7.9K | 18.4K |
| 523 | Photography | 1 | 0 | 893 | 2.3K |
| 523 | Numerical Analysis | 1 | 0 | 6.1K | 11.6K |
| 523 | Quantum Mechanics | 1 | 0 | 195 | 425 |
| 523 | Microbial Biotechnology | 1 | 0 | 3.2K | 7.5K |
| 523 | Plasma chemistry | 1 | 0 | 1.0K | 2.8K |
| 523 | Stratigraphic Correlation | 2 | 0 | 20 | 95 |
| 523 | Spectroscopy | 1 | 0 | 307 | 987 |
| 523 | Magnetism | 1 | 0 | 176 | 481 |
| 523 | electroplating | 1 | 0 | 5 | 3 |
| 523 | Health Risk Assessment | 1 | 0 | 1.0K | 3.7K |
| 523 | chromatin | 1 | 0 | 488 | 1.9K |
| 523 | Jurisprudence | 3 | 0 | 1.7K | 10.0K |
| 523 | Decision making | 1 | 0 | 4.5K | 13.1K |
