| 1 | Chemistry | 569 | 22.5K | 29 | 66 |
| 2 | Catalysis | 259 | 14.9K | 5 | 5 |
| 3 | transport vesicles | 2 | 14.4K | 180 | 14 |
| 4 | Electrochemistry | 225 | 9.9K | 3 | 1 |
| 5 | Chemical Engineering | 130 | 7.9K | 9 | 7 |
| 6 | Biochemistry | 257 | 7.9K | 41 | 93 |
| 7 | Analytical Chemistry | 153 | 6.9K | 7 | 8 |
| 8 | Materials | 106 | 6.2K | 102 | 203 |
| 9 | Physics | 129 | 5.4K | 72 | 207 |
| 10 | Biology | 97 | 4.8K | 197 | 323 |
| 11 | Molecular Biology | 136 | 3.9K | 74 | 255 |
| 12 | Biotechnology | 81 | 3.8K | 45 | 67 |
| 13 | Microbiology | 71 | 3.8K | 78 | 90 |
| 14 | Science | 88 | 3.6K | 148 | 401 |
| 15 | Pollution | 69 | 3.4K | 51 | 117 |
| 16 | Pharmaceutical Chemistry | 96 | 3.3K | 15 | 22 |
| 17 | Polymers | 146 | 3.2K | 21 | 21 |
| 18 | Environment | 72 | 3.0K | 52 | 168 |
| 19 | Materials Science | 54 | 3.0K | 56 | 53 |
| 20 | environmental pollution | 45 | 2.7K | 43 | 28 |
| 21 | Electronics | 50 | 2.7K | 16 | 5 |
| 22 | Nanotechnology | 80 | 2.7K | 81 | 202 |
| 23 | Biochemical Engineering | 48 | 2.6K | 20 | 43 |
| 24 | Colloids | 65 | 2.6K | 18 | 17 |
| 25 | Biophysics | 104 | 2.5K | 30 | 56 |
| 26 | Electrochemical Analysis | 39 | 2.5K | 7 | 3 |
| 27 | polymerization | 119 | 2.5K | 16 | 18 |
| 28 | Information Systems | 53 | 2.3K | 2 | 4 |
| 29 | Nanostructured Materials | 66 | 2.2K | 98 | 189 |
| 30 | Green Chemistry | 44 | 2.1K | 12 | 10 |
| 31 | Clinical Chemistry | 47 | 2.0K | 15 | 18 |
| 32 | Solar Energy | 60 | 1.9K | 6 | 6 |
| 33 | Surface Chemistry | 54 | 1.8K | 20 | 25 |
| 34 | Research | 52 | 1.7K | 191 | 247 |
| 35 | solar cells | 54 | 1.7K | 6 | 10 |
| 36 | Medicine | 49 | 1.6K | 316 | 489 |
| 37 | Sustainable Engineering | 31 | 1.6K | 20 | 17 |
| 38 | solar power | 53 | 1.6K | 4 | 6 |
| 39 | Ecology | 40 | 1.5K | 440 | 651 |
| 40 | Cytology | 20 | 1.5K | 294 | 510 |
| 41 | fuel cells | 25 | 1.5K | 123 | 323 |
| 42 | Documentation | 37 | 1.5K | 1 | 1 |
| 43 | Biomass Energy | 26 | 1.5K | 30 | 24 |
| 44 | Ceramic materials | 45 | 1.4K | 3 | 1 |
| 45 | Bioengineering | 27 | 1.4K | 76 | 119 |
| 46 | Biocompatible Materials | 36 | 1.4K | 64 | 95 |
| 47 | Immunology | 20 | 1.3K | 225 | 245 |
| 48 | nucleic acids | 45 | 1.3K | 11 | 57 |
| 49 | Molecular structure | 39 | 1.3K | 15 | 66 |
| 50 | biocatalysis | 4 | 1.3K | 5 | 5 |
| 50 | Homogeneous catalysis | 4 | 1.3K | 5 | 5 |
| 50 | Heterogeneous catalysis | 4 | 1.3K | 5 | 5 |
| 53 | Informatics | 52 | 1.3K | 3 | 8 |
| 54 | Cell Biology | 15 | 1.2K | 609 | 706 |
| 55 | Bioorganic chemistry | 45 | 1.2K | 19 | 33 |
| 56 | Toxicology | 33 | 1.2K | 99 | 108 |
| 57 | Environmental monitoring | 29 | 1.1K | 50 | 55 |
| 58 | Environmental Health | 34 | 1.1K | 93 | 131 |
| 59 | Physical Chemistry | 33 | 1.1K | 15 | 36 |
| 60 | Organic Chemistry | 40 | 1.1K | 33 | 47 |
| 61 | Water pollution | 23 | 1.1K | 33 | 35 |
| 62 | Computational Chemistry | 21 | 1.1K | 3 | 17 |
| 63 | Renewable Energy Sources | 19 | 1.1K | 26 | 46 |
| 64 | Spectrum analysis | 51 | 1.0K | 44 | 88 |
| 65 | Energy Conversion | 19 | 1.0K | 15 | 36 |
| 66 | Zeolites | 43 | 969 | 1 | 6 |
| 67 | Biomedical Engineering | 36 | 893 | 46 | 84 |
| 68 | Industrial Engineering | 18 | 870 | 7 | 7 |
| 69 | Cellulose | 22 | 849 | 4 | 6 |
| 70 | Virology | 4 | 843 | 701 | 687 |
| 71 | Membranes | 22 | 826 | 10 | 17 |
| 72 | nanoscience | 17 | 818 | 77 | 98 |
| 73 | Fungi | 8 | 807 | 30 | 31 |
| 74 | Mathematics | 16 | 801 | 740 | 135 |
| 74 | genome | 6 | 801 | 103 | 79 |
| 76 | Technology | 31 | 798 | 115 | 214 |
| 77 | Bacteriology | 12 | 758 | 149 | 204 |
| 78 | Chromatographic analysis | 32 | 741 | 35 | 24 |
| 79 | Optical materials | 10 | 669 | 1239 | 1251 |
| 80 | Marine Biology | 5 | 642 | 122 | 47 |
| 80 | Marine Pollution | 5 | 642 | 35 | 13 |
| 82 | Composite Materials | 23 | 629 | 14 | 40 |
| 83 | Genetics | 6 | 613 | 577 | 375 |
| 84 | proteins | 28 | 599 | 31 | 82 |
| 85 | Chromatography | 22 | 596 | 43 | 27 |
| 86 | Environmental Chemistry | 5 | 583 | 224 | 108 |
| 87 | Crystal growth | 16 | 580 | 7 | 8 |
| 88 | Energy Storage | 19 | 577 | 16 | 30 |
| 89 | Environmental Engineering | 20 | 552 | 63 | 129 |
| 90 | Structure-activity relationship | 28 | 540 | 2 | 9 |
| 91 | Histology | 9 | 527 | 93 | 89 |
| 92 | Biomass | 5 | 504 | 18 | 12 |
| 93 | pigments | 9 | 486 | 12 | 5 |
| 94 | Pharmacology | 18 | 481 | 498 | 798 |
| 95 | Mycology | 8 | 471 | 64 | 48 |
| 96 | Environmental Management | 17 | 459 | 42 | 83 |
| 97 | Computer Graphics | 8 | 452 | 39 | 22 |
| 98 | environmental protection | 17 | 449 | 57 | 127 |
| 99 | Microbial Biotechnology | 7 | 442 | 26 | 21 |
| 100 | Host-parasite interactions | 6 | 441 | 62 | 80 |
| 100 | Virulence | 6 | 441 | 59 | 83 |
| 100 | Immunity | 6 | 441 | 218 | 271 |
| 103 | Solid State Chemistry | 18 | 423 | 51 | 46 |
| 104 | Quantum Chemistry | 22 | 418 | 6 | 14 |
| 105 | Electrophoresis | 13 | 413 | 171 | 91 |
| 106 | protein | 18 | 412 | 32 | 94 |
| 107 | Microbial Ecology | 7 | 404 | 256 | 264 |
| 108 | Pharmaceutical Technology | 13 | 401 | 115 | 98 |
| 109 | Ceramics | 8 | 395 | 327 | 169 |
| 109 | Glass | 8 | 395 | 317 | 175 |
| 109 | concrete | 7 | 395 | 88 | 31 |
| 109 | pottery | 8 | 395 | 307 | 168 |
| 109 | Cement | 7 | 395 | 23 | 22 |
| 114 | Chemical processes | 5 | 391 | 54 | 7 |
| 115 | sanitation | 11 | 390 | 45 | 102 |
| 116 | Nutrition | 4 | 388 | 1089 | 431 |
| 117 | Physical organic chemistry | 13 | 376 | 32 | 21 |
| 118 | Soft Condensed Matter | 10 | 363 | 20 | 22 |
| 119 | Pharmacognosy | 2 | 362 | 136 | 50 |
| 120 | biopolymers | 9 | 356 | 57 | 31 |
| 121 | Computational Biology | 9 | 346 | 179 | 336 |
| 122 | Medicinal plants | 1 | 342 | 169 | 30 |
| 123 | Environmental pollutants | 9 | 338 | 133 | 127 |
| 124 | Bioinorganic chemistry | 11 | 335 | 106 | 37 |
| 125 | Atmospheric Chemistry | 10 | 334 | 29 | 46 |
| 126 | Catalysts | 7 | 328 | 16 | 21 |
| 127 | energy conservation | 7 | 325 | 97 | 66 |
| 128 | Metabolic diseases | 2 | 324 | 857 | 334 |
| 128 | Homeostasis | 2 | 324 | 34 | 60 |
| 128 | Cell metabolism | 2 | 324 | 119 | 62 |
| 131 | Waste management | 18 | 317 | 11 | 20 |
| 132 | Medical Laboratory Science | 11 | 314 | 33 | 64 |
| 133 | pollutants | 8 | 313 | 97 | 109 |
| 134 | Water Purification | 15 | 312 | 10 | 18 |
| 134 | Water quality management | 15 | 312 | 23 | 34 |
| 136 | Environmental Toxicology | 10 | 310 | 98 | 144 |
| 137 | Agricultural Chemistry | 13 | 307 | 57 | 79 |
| 138 | Genetic engineering | 9 | 300 | 72 | 164 |
| 139 | Solid State Physics | 17 | 298 | 107 | 166 |
| 140 | United Kingdom | 6 | 297 | 91 | 85 |
| 141 | Statistical physics | 14 | 295 | 89 | 117 |
| 142 | Industrial Microbiology | 7 | 291 | 73 | 90 |
| 142 | Bioinformatics | 7 | 291 | 125 | 191 |
| 144 | catalytic activity | 8 | 283 | 173 | 133 |
| 145 | Molecular Microbiology | 5 | 280 | 167 | 145 |
| 146 | Chemical analysis | 8 | 268 | 27 | 24 |
| 147 | Water | 6 | 267 | 454 | 535 |
| 147 | Parasitology | 1 | 267 | 440 | 72 |
| 147 | Parasitic Diseases | 1 | 267 | 235 | 58 |
| 147 | Bacteria | 1 | 267 | 60 | 21 |
| 147 | Bacterial infections | 1 | 267 | 298 | 57 |
| 152 | Mass Spectrometry | 8 | 250 | 123 | 103 |
| 153 | nuclear magnetic resonance | 13 | 237 | 55 | 135 |
| 154 | actuators | 11 | 233 | 36 | 71 |
| 154 | transducers | 11 | 233 | 36 | 71 |
| 156 | Nanostructures | 9 | 231 | 49 | 137 |
| 156 | Food | 5 | 231 | 590 | 524 |
| 156 | Condensed Matter | 9 | 231 | 139 | 174 |
| 159 | environmental exposure | 7 | 230 | 119 | 120 |
| 160 | Pharmacy | 10 | 227 | 146 | 150 |
| 161 | Neurochemistry | 2 | 225 | 1011 | 455 |
| 162 | Meteorology | 4 | 219 | 232 | 248 |
| 163 | Magnetic Resonance Spectroscopy | 10 | 216 | 99 | 153 |
| 164 | peptides | 5 | 214 | 133 | 50 |
| 165 | Crystallography | 16 | 212 | 11 | 21 |
| 165 | Cancer | 5 | 212 | 1124 | 1426 |
| 167 | Nonlinear Dynamics | 11 | 209 | 54 | 85 |
| 168 | Energy Harvesting | 4 | 206 | 19 | 31 |
| 169 | Plasma chemistry | 2 | 197 | 108 | 41 |
| 169 | Plasma polymerization | 2 | 197 | 101 | 40 |
| 171 | Computer-Aided Design | 15 | 193 | 6 | 31 |
| 171 | Carbon | 7 | 193 | 31 | 84 |
| 173 | Raman spectroscopy | 8 | 192 | 31 | 42 |
| 174 | Parenteral nutrition | 1 | 182 | 891 | 150 |
| 175 | Serology | 2 | 177 | 42 | 17 |
| 175 | Environmental Policy | 9 | 177 | 103 | 296 |
| 177 | Nanochemistry | 14 | 173 | 10 | 21 |
| 178 | Botany | 9 | 172 | 1097 | 2361 |
| 179 | Molecular evolution | 8 | 169 | 63 | 164 |
| 179 | drugs | 9 | 169 | 210 | 406 |
| 181 | enzymes | 9 | 168 | 29 | 88 |
| 182 | Human genetics | 3 | 167 | 343 | 893 |
| 183 | Photochemistry | 8 | 166 | 76 | 138 |
| 183 | Photobiology | 8 | 166 | 25 | 40 |
| 185 | clay | 5 | 165 | 7 | 16 |
| 185 | Lipids | 4 | 165 | 105 | 111 |
| 187 | Plastics | 14 | 159 | 39 | 180 |
| 188 | miniaturization | 7 | 158 | 72 | 224 |
| 189 | coal | 5 | 156 | 30 | 49 |
| 190 | Liquid chromatography | 11 | 154 | 11 | 11 |
| 191 | Plant physiology | 3 | 152 | 575 | 608 |
| 191 | Mesoporous materials | 4 | 152 | 3 | 3 |
| 193 | Drug design | 8 | 151 | 64 | 167 |
| 194 | wood | 4 | 148 | 14 | 7 |
| 195 | Archaeology | 5 | 145 | 90 | 49 |
| 196 | Heterocyclic compounds | 6 | 140 | 125 | 49 |
| 197 | nuclear magnetic resonance spectroscopy | 11 | 139 | 17 | 36 |
| 198 | Microelectronics | 5 | 137 | 127 | 213 |
| 198 | Developmental Biology | 3 | 137 | 877 | 1032 |
| 198 | carbon monoxide | 3 | 137 | 5 | 8 |
| 201 | Clinical Immunology | 1 | 136 | 237 | 77 |
| 201 | Developmental Immunology | 1 | 136 | 161 | 54 |
| 203 | atmospheric models | 4 | 135 | 27 | 49 |
| 204 | ecosystem | 2 | 134 | 528 | 635 |
| 205 | Aging | 2 | 126 | 669 | 423 |
| 206 | Neurology | 1 | 124 | 6364 | 3527 |
| 207 | Enzyme | 4 | 123 | 15 | 32 |
| 208 | Artificial Intelligence | 4 | 119 | 497 | 561 |
| 209 | Synthetic biology | 7 | 118 | 12 | 23 |
| 210 | Calorimetry | 11 | 117 | 10 | 12 |
| 210 | Thermal analysis | 11 | 117 | 10 | 12 |
| 212 | Hematology | 2 | 113 | 2143 | 1361 |
| 212 | Thin Films | 3 | 113 | 104 | 29 |
| 214 | food technology | 4 | 111 | 939 | 1277 |
| 214 | Infrared spectroscopy | 6 | 111 | 4 | 3 |
| 216 | Metallurgy | 3 | 108 | 380 | 297 |
| 216 | Cheminformatics | 9 | 108 | 11 | 195 |
| 218 | gene mapping | 3 | 107 | 216 | 385 |
| 219 | Magnetic Materials | 3 | 106 | 421 | 458 |
| 220 | Organometallic chemistry | 7 | 104 | 421 | 427 |
| 220 | Synaptic Transmission | 2 | 104 | 36 | 29 |
| 222 | Atomic spectroscopy | 3 | 102 | 35 | 29 |
| 223 | occupational health and safety | 4 | 101 | 15 | 9 |
| 223 | industrial hygiene | 4 | 101 | 62 | 46 |
| 225 | Semiconductors | 4 | 97 | 114 | 86 |
| 226 | Extreme environments | 1 | 96 | 19 | 22 |
| 227 | Building Materials | 5 | 95 | 33 | 92 |
| 228 | Metals | 2 | 93 | 464 | 350 |
| 229 | Photonics | 1 | 92 | 2746 | 1579 |
| 230 | Plant cells | 2 | 90 | 999 | 1542 |
| 231 | Environmental Law | 2 | 89 | 158 | 176 |
| 232 | Proteome | 5 | 88 | 67 | 192 |
| 233 | Dynamics | 3 | 86 | 93 | 68 |
| 233 | Mathematical Physics | 3 | 86 | 449 | 352 |
| 233 | plant communities | 1 | 86 | 1207 | 920 |
| 233 | Quantum theory | 3 | 86 | 44 | 40 |
| 237 | Nanobiotechnology | 2 | 84 | 27 | 45 |
| 238 | Allergy | 1 | 83 | 256 | 355 |
| 239 | Physiology | 19 | 81 | 250 | 3302 |
| 239 | Geochemistry | 4 | 81 | 332 | 600 |
| 241 | color | 4 | 80 | 41 | 53 |
| 242 | Molecular Spectroscopy | 5 | 79 | 42 | 79 |
| 243 | Pharmacokinetics | 4 | 77 | 34 | 76 |
| 243 | Enzyme inhibitors | 5 | 77 | 7 | 20 |
| 245 | Cell differentiation | 1 | 76 | 1761 | 1721 |
| 245 | Cell death | 1 | 76 | 231 | 250 |
| 247 | Molecular Pharmacology | 2 | 74 | 63 | 124 |
| 247 | Vaccines | 2 | 74 | 228 | 237 |
| 249 | Plant Ecology | 3 | 72 | 638 | 1102 |
| 250 | Atmospheric Physics | 2 | 71 | 933 | 1075 |
| 251 | China | 2 | 69 | 598 | 441 |
| 251 | DNA polymerases | 1 | 69 | 102 | 185 |
| 253 | Neurobiology | 1 | 68 | 1007 | 816 |
| 253 | Neurophysiology | 1 | 68 | 1091 | 1078 |
| 253 | Crystallization | 5 | 68 | 16 | 17 |
| 253 | Immunochemistry | 1 | 68 | 141 | 80 |
| 253 | Nanoparticles | 5 | 68 | 1473 | 3971 |
| 258 | Molecular Genetics | 2 | 67 | 1230 | 1815 |
| 258 | Cognitive Science | 1 | 67 | 463 | 351 |
| 258 | nucleotides | 13 | 67 | 3 | 8 |
| 258 | Genes | 4 | 67 | 91 | 198 |
| 262 | Medical genetics | 2 | 66 | 3197 | 4809 |
| 262 | Genomics | 6 | 66 | 255 | 801 |
| 262 | Radiation effects | 2 | 66 | 34 | 56 |
| 265 | Solar power plants | 1 | 65 | 203 | 159 |
| 265 | biofuels | 1 | 65 | 49 | 60 |
| 265 | Photovoltaic Cells | 1 | 65 | 203 | 159 |
| 268 | Chemical Oceanography | 1 | 64 | 30 | 41 |
| 269 | Cytogenetics | 2 | 60 | 396 | 748 |
| 270 | NMR | 4 | 59 | 50 | 71 |
| 271 | Geriatrics | 1 | 58 | 3500 | 2544 |
| 271 | Cosmochemistry | 3 | 58 | 24 | 55 |
| 273 | X-ray crystallography | 1 | 57 | 81 | 34 |
| 274 | Mineralogy | 3 | 56 | 71 | 131 |
| 274 | plant molecular biology | 3 | 56 | 581 | 1552 |
| 274 | Sites | 1 | 56 | 41 | 48 |
| 277 | Carcinogenesis | 2 | 53 | 128 | 289 |
| 277 | Environmental carcinogens | 2 | 53 | 4 | 8 |
| 279 | Adhesion | 3 | 52 | 17 | 28 |
| 279 | textile fibers | 4 | 52 | 14 | 13 |
| 279 | adhesives | 3 | 52 | 18 | 28 |
| 279 | Natural history | 2 | 52 | 789 | 1939 |
| 283 | Plant Genetics | 1 | 50 | 94 | 119 |
| 283 | Animal genetics | 2 | 50 | 181 | 224 |
| 285 | Tribology | 1 | 48 | 292 | 113 |
| 285 | Food Microbiology | 1 | 48 | 1279 | 1492 |
| 285 | Analytical Biochemistry | 4 | 48 | 68 | 231 |
| 288 | Metallography | 3 | 46 | 31 | 78 |
| 288 | magnetic resonance | 3 | 46 | 76 | 98 |
| 290 | Highway Engineering | 3 | 45 | 6 | 8 |
| 290 | Surface-Active Agents | 2 | 45 | 67 | 162 |
| 290 | Biodegradation | 2 | 45 | 26 | 71 |
| 290 | Surface properties | 2 | 45 | 71 | 178 |
| 294 | Signal Transduction | 1 | 44 | 406 | 404 |
| 294 | Biomechanics | 1 | 44 | 430 | 357 |
| 294 | Gene expression | 1 | 44 | 214 | 154 |
| 294 | X-ray spectroscopy | 2 | 44 | 37 | 24 |
| 294 | Cell division | 1 | 44 | 238 | 187 |
| 299 | Microscopy | 6 | 43 | 90 | 453 |
| 300 | Biosensors | 2 | 42 | 113 | 284 |
| 301 | Quality Control | 4 | 41 | 241 | 599 |
| 301 | Accreditation | 4 | 41 | 4 | 5 |
| 301 | pharmaceutical industry | 1 | 41 | 117 | 90 |
| 304 | Biogeochemistry | 2 | 40 | 70 | 149 |
| 305 | Plant Biotechnology | 1 | 39 | 645 | 1141 |
| 305 | Plant genetic engineering | 1 | 39 | 661 | 1165 |
| 307 | Cybernetics | 1 | 38 | 168 | 147 |
| 307 | Optics | 6 | 38 | 437 | 859 |
| 307 | Inorganic Chemistry | 1 | 38 | 26 | 27 |
| 310 | Manufacturing Processes | 2 | 37 | 272 | 333 |
| 311 | Fluid Mechanics | 3 | 36 | 134 | 312 |
| 311 | Organometallic compounds | 3 | 36 | 426 | 759 |
| 311 | supercritical fluids | 3 | 36 | 12 | 40 |
| 314 | Chemical kinetics | 5 | 35 | 30 | 102 |
| 314 | Molecules | 7 | 35 | 31 | 345 |
| 314 | Plasma devices | 1 | 35 | 17 | 25 |
| 317 | Food additives | 1 | 34 | 153 | 168 |
| 317 | food contamination | 1 | 34 | 356 | 263 |
| 319 | Nuclear Physics | 7 | 33 | 221 | 530 |
| 319 | Forest Ecology | 2 | 33 | 58 | 126 |
| 319 | Drug delivery systems | 1 | 33 | 189 | 279 |
| 319 | Chemical structure | 3 | 33 | 15 | 22 |
| 323 | Textile industry | 3 | 32 | 17 | 27 |
| 324 | Diagnostic microbiology | 1 | 31 | 186 | 327 |
| 325 | Automation | 1 | 30 | 186 | 202 |
| 325 | Ultrasonics | 3 | 30 | 37 | 121 |
| 325 | Sonochemistry | 3 | 30 | 19 | 68 |
| 325 | Hazardous waste | 2 | 30 | 32 | 159 |
| 329 | Organic Geochemistry | 1 | 29 | 27 | 37 |
| 329 | Chemical industry | 4 | 29 | 234 | 785 |
| 331 | Neurotoxicology | 1 | 28 | 74 | 117 |
| 331 | Medical Microbiology | 1 | 28 | 393 | 638 |
| 331 | Apoptosis | 1 | 28 | 27 | 49 |
| 331 | neurotoxins | 1 | 28 | 27 | 49 |
| 331 | Neurotoxic agents | 1 | 28 | 27 | 49 |
| 331 | Microorganisms | 1 | 28 | 185 | 290 |
| 331 | Nerve regeneration | 1 | 28 | 27 | 49 |
| 338 | Environmental Microbiology | 1 | 26 | 1096 | 1944 |
| 338 | Water Microbiology | 1 | 26 | 54 | 83 |
| 338 | RNA | 1 | 26 | 157 | 375 |
| 338 | biological monitoring | 2 | 26 | 35 | 75 |
| 338 | Fouling | 1 | 26 | 23 | 42 |
| 343 | Geophysics | 1 | 25 | 4653 | 6008 |
| 343 | Coatings | 2 | 25 | 4 | 3 |
| 343 | Methodology | 4 | 25 | 15 | 50 |
| 343 | Paint | 2 | 25 | 2 | 2 |
| 343 | Methods | 4 | 25 | 5 | 11 |
| 343 | drug toxicity | 1 | 25 | 52 | 75 |
| 349 | Forensic Genetics | 1 | 23 | 50 | 55 |
| 349 | Astrophysics | 2 | 23 | 716 | 1082 |
| 349 | Interferons | 1 | 23 | 26 | 50 |
| 349 | Antibodies | 3 | 23 | 24 | 116 |
| 349 | cytokines | 1 | 23 | 263 | 444 |
| 349 | radioactive waste | 1 | 23 | 58 | 154 |
| 349 | Antigens | 3 | 23 | 47 | 299 |
| 349 | industrial waste | 1 | 23 | 61 | 154 |
| 349 | Water chemistry | 1 | 23 | 211 | 236 |
| 349 | Cytokine | 1 | 23 | 42 | 100 |
| 359 | Metabolism | 1 | 21 | 2510 | 3962 |
| 359 | Pharmacogenetics | 1 | 21 | 215 | 452 |
| 361 | Systems Biology | 3 | 20 | 182 | 688 |
| 361 | mass transfer | 1 | 20 | 338 | 370 |
| 361 | Autoimmunity | 1 | 20 | 85 | 207 |
| 361 | natural products | 1 | 20 | 194 | 240 |
| 365 | Medical Technology | 3 | 19 | 117 | 607 |
| 365 | Bioremediation | 1 | 19 | 237 | 364 |
| 367 | Public Policy | 1 | 18 | 481 | 736 |
| 367 | Systems Analysis | 1 | 18 | 110 | 147 |
| 367 | Fermentation | 1 | 18 | 106 | 151 |
| 367 | System analysis | 1 | 18 | 405 | 528 |
| 367 | brewing | 1 | 18 | 112 | 149 |
| 372 | Aerosols | 11 | 17 | 15 | 87 |
| 372 | Porous materials | 3 | 17 | 14 | 52 |
| 372 | Jurisprudence | 2 | 17 | 233 | 457 |
| 372 | aerosol | 11 | 17 | 12 | 62 |
| 376 | Engineering | 3 | 16 | 529 | 1569 |
| 376 | Traffic Engineering | 2 | 16 | 11 | 42 |
| 376 | Nanomedicine | 2 | 16 | 52 | 538 |
| 376 | Food Preservation | 1 | 16 | 837 | 1070 |
| 376 | Radiation | 3 | 16 | 118 | 366 |
| 381 | Obesity | 1 | 15 | 3424 | 5775 |
| 381 | Chromosome mapping | 1 | 15 | 382 | 733 |
| 381 | infection | 1 | 15 | 226 | 465 |
| 381 | free radicals | 1 | 15 | 268 | 559 |
| 381 | cryosphere | 1 | 15 | 30 | 57 |
| 381 | Yeast | 1 | 15 | 136 | 321 |
| 387 | Biopharmaceutics | 3 | 14 | 58 | 291 |
| 387 | Solutions | 2 | 14 | 5 | 22 |
| 387 | synthesis | 2 | 14 | 83 | 226 |
| 390 | Magnetic Resonance Imaging | 1 | 13 | 111 | 288 |
| 390 | Synchrotron Radiation | 2 | 13 | 12 | 37 |
| 390 | Technological Innovations | 1 | 13 | 1229 | 2410 |
| 393 | Powder Metallurgy | 3 | 12 | 10 | 36 |
| 393 | Supramolecular chemistry | 2 | 12 | 14 | 27 |
| 393 | Sintering | 3 | 12 | 1 | 5 |
| 393 | Visual Perception | 1 | 12 | 4053 | 6014 |
| 393 | Finite Element Method | 1 | 12 | 9 | 19 |
| 393 | ozone | 1 | 12 | 14 | 25 |
| 393 | Memory | 1 | 12 | 4074 | 6057 |
| 393 | Attention | 1 | 12 | 4061 | 6036 |
| 393 | Perception | 1 | 12 | 4071 | 6031 |
| 393 | packaging | 3 | 12 | 25 | 223 |
| 403 | Public Health | 1 | 10 | 3758 | 6875 |
| 403 | Histochemistry | 1 | 10 | 257 | 533 |
| 403 | Industry | 1 | 10 | 23 | 73 |
| 403 | Genetic therapy | 1 | 10 | 350 | 1009 |
| 407 | Biological Systems | 1 | 9 | 91 | 200 |
| 408 | Education | 1 | 8 | 1630 | 2427 |
| 408 | Law | 1 | 8 | 526 | 503 |
| 408 | Geomorphology | 1 | 8 | 551 | 1183 |
| 408 | Hydrology | 1 | 8 | 2444 | 4692 |
| 408 | Soil Science | 1 | 8 | 620 | 1322 |
| 408 | Environmental Geology | 1 | 8 | 157 | 372 |
| 408 | Gene expression regulation | 1 | 8 | 333 | 699 |
| 408 | Genetic regulation | 1 | 8 | 605 | 1720 |
| 408 | glycoproteins | 1 | 8 | 56 | 189 |
| 408 | Luminescence | 1 | 8 | 600 | 966 |
| 408 | Glycoconjugates | 1 | 8 | 56 | 189 |
| 408 | Oligosaccharides | 1 | 8 | 24 | 60 |
| 408 | Nanotubes | 1 | 8 | 15 | 21 |
| 408 | Australia | 1 | 8 | 1632 | 2756 |
| 408 | glycolipids | 1 | 8 | 56 | 189 |
| 423 | soil microbiology | 1 | 7 | 207 | 463 |
| 423 | Plant diseases | 1 | 7 | 559 | 1076 |
| 423 | Recycling | 1 | 7 | 59 | 173 |
| 426 | Paleoecology | 1 | 6 | 115 | 221 |
| 426 | Metallic Glasses | 1 | 6 | 25 | 57 |
| 426 | Drying | 1 | 6 | 54 | 121 |
| 426 | Environmental forensics | 1 | 6 | 9 | 11 |
| 426 | Paleobotany | 1 | 6 | 21 | 48 |
| 426 | drug therapy | 1 | 6 | 2760 | 6214 |
| 426 | Vegetation dynamics | 1 | 6 | 21 | 46 |
| 426 | Familial diseases | 1 | 6 | 26 | 65 |
| 426 | Plants | 2 | 6 | 994 | 3307 |
| 435 | Bioenergetics | 2 | 5 | 68 | 274 |
| 435 | Municipal Engineering | 3 | 5 | 10 | 76 |
| 435 | Ferroelectricity | 1 | 5 | 79 | 131 |
| 435 | Japan | 2 | 5 | 417 | 1504 |
| 435 | Evolution | 2 | 5 | 1095 | 3980 |
| 440 | Electrical Engineering | 3 | 4 | 486 | 1760 |
| 440 | Geology | 1 | 4 | 1734 | 3684 |
| 440 | Materials Engineering | 1 | 4 | 67 | 256 |
| 440 | Structural design | 1 | 4 | 48 | 148 |
| 440 | Organizational Sociology | 1 | 4 | 73 | 348 |
| 440 | Biotransformation | 1 | 4 | 10 | 34 |
| 440 | Alternative Medicine | 1 | 4 | 317 | 875 |
| 440 | Smart Materials | 1 | 4 | 101 | 274 |
| 440 | complementary therapies | 1 | 4 | 365 | 981 |
| 440 | management | 1 | 4 | 1593 | 3535 |
| 440 | organization | 1 | 4 | 46 | 121 |
| 440 | Trace elements | 1 | 4 | 32 | 112 |
| 440 | Europe | 1 | 4 | 1165 | 2325 |
| 440 | Agriculture | 2 | 4 | 880 | 3494 |
| 454 | Sustainable Development | 1 | 3 | 670 | 2173 |
| 454 | Global Health | 1 | 3 | 336 | 1158 |
| 454 | Data Mining | 1 | 3 | 285 | 923 |
| 454 | Climate change | 1 | 3 | 1820 | 4560 |
| 454 | Radioisotopes | 1 | 3 | 359 | 836 |
| 454 | data collection | 1 | 3 | 175 | 461 |
| 454 | mammals | 2 | 3 | 94 | 547 |
| 454 | drug evaluation | 1 | 3 | 527 | 1369 |
| 462 | Research Design | 1 | 2 | 402 | 1207 |
| 462 | Liquid Crystals | 2 | 2 | 59 | 158 |
| 462 | Liposomes | 1 | 2 | 53 | 143 |
| 462 | Lipid bilayers | 1 | 2 | 38 | 99 |
| 462 | cell interaction | 1 | 2 | 288 | 868 |
| 462 | Cell communication | 1 | 2 | 218 | 705 |
| 462 | Eigenvalues | 1 | 2 | 21 | 30 |
| 469 | Photography | 1 | 1 | 299 | 418 |
| 469 | Ion Exchange | 1 | 1 | 10 | 35 |
| 469 | Energy metabolism | 1 | 1 | 93 | 217 |
| 469 | Molecular recognition | 1 | 1 | 152 | 624 |
| 469 | soil conservation | 1 | 1 | 537 | 1678 |
| 469 | soil pollution | 1 | 1 | 56 | 172 |
| 469 | Spectroscopy | 1 | 1 | 63 | 218 |
| 469 | air quality | 1 | 1 | 28 | 68 |
| 469 | Protective coatings | 1 | 1 | 15 | 36 |
| 469 | Solvent extraction | 1 | 1 | 10 | 35 |
| 469 | particles | 1 | 1 | 491 | 1683 |
| 469 | Granular materials | 1 | 1 | 36 | 98 |
| 469 | cell membrane | 1 | 1 | 96 | 230 |
| 482 | Philosophy | 1 | 0 | 713 | 1237 |
| 482 | Fluid Dynamics | 1 | 0 | 163 | 539 |
| 482 | Biochemical Genetics | 1 | 0 | 53 | 121 |
| 482 | Forecasting | 1 | 0 | 267 | 775 |
| 482 | biological factors | 1 | 0 | 1484 | 4365 |
| 482 | Neutrons | 1 | 0 | 2 | 10 |
| 482 | biological evolution | 1 | 0 | 1146 | 2945 |
| 482 | molecular design | 1 | 0 | 20 | 91 |
| 482 | venom | 1 | 0 | 103 | 247 |
| 482 | Toxins | 1 | 0 | 111 | 268 |