| 1 | Physics | 8,684 | 850.2K | 17 | 16 |
| 2 | Biology | 4,467 | 644.8K | 30 | 24 |
| 3 | Science | 3,748 | 581.2K | 48 | 30 |
| 4 | Chemistry | 7,294 | 560.6K | 9 | 11 |
| 5 | Natural history | 931 | 364.9K | 42 | 22 |
| 6 | Molecular Biology | 2,438 | 221.3K | 53 | 38 |
| 7 | Biochemistry | 2,768 | 168.3K | 85 | 64 |
| 8 | Geophysics | 2,996 | 162.6K | 5 | 5 |
| 9 | Ecology | 1,894 | 158.7K | 31 | 27 |
| 10 | Biotechnology | 1,787 | 158.3K | 11 | 8 |
| 11 | Pollution | 1,611 | 157.3K | 10 | 4 |
| 12 | Astrophysics | 1,896 | 156.1K | 68 | 63 |
| 13 | Nanotechnology | 1,875 | 151.9K | 28 | 22 |
| 14 | Microbiology | 1,714 | 145.1K | 43 | 32 |
| 15 | Astronomy | 2,119 | 143.3K | 47 | 54 |
| 16 | Environmental Health | 1,466 | 142.3K | 10 | 3 |
| 17 | Materials | 1,841 | 137.0K | 65 | 39 |
| 18 | Condensed Matter | 2,774 | 132.4K | 10 | 16 |
| 19 | Cytology | 939 | 120.2K | 69 | 54 |
| 20 | Cell Biology | 810 | 117.4K | 66 | 52 |
| 21 | Bioengineering | 1,111 | 115.5K | 12 | 8 |
| 22 | Environmental Engineering | 1,101 | 114.6K | 7 | 2 |
| 23 | Solid State Physics | 2,788 | 99.4K | 12 | 24 |
| 24 | sanitation | 893 | 98.1K | 1 | 1 |
| 25 | Medicine | 1,601 | 96.1K | 179 | 167 |
| 26 | Spectrum analysis | 1,225 | 94.0K | 56 | 50 |
| 27 | Catalysis | 1,514 | 90.7K | 10 | 6 |
| 28 | Environment | 845 | 85.7K | 43 | 22 |
| 29 | Nuclear Physics | 2,098 | 83.7K | 70 | 74 |
| 30 | Neurology | 910 | 83.1K | 170 | 114 |
| 31 | Geology | 1,377 | 82.5K | 7 | 10 |
| 32 | Materials Science | 1,124 | 77.4K | 58 | 40 |
| 33 | Research | 1,468 | 76.0K | 125 | 86 |
| 34 | Earth Sciences | 726 | 69.6K | 6 | 2 |
| 35 | Computational Biology | 524 | 64.9K | 7 | 11 |
| 36 | Artificial Intelligence | 465 | 64.6K | 46 | 9 |
| 37 | Chemical Engineering | 1,178 | 63.9K | 35 | 34 |
| 38 | Geochemistry | 989 | 60.1K | 5 | 7 |
| 39 | Biomedical Engineering | 1,141 | 59.5K | 13 | 9 |
| 40 | Biocompatible Materials | 821 | 58.9K | 44 | 32 |
| 41 | Meteorology | 734 | 58.2K | 29 | 20 |
| 42 | miniaturization | 569 | 57.2K | 8 | 9 |
| 43 | Virology | 265 | 57.1K | 166 | 75 |
| 44 | Optics | 1,649 | 56.1K | 31 | 17 |
| 45 | Atmospheric Physics | 842 | 55.7K | 6 | 8 |
| 46 | Computer Graphics | 693 | 54.6K | 3 | 3 |
| 47 | Biochemical Engineering | 418 | 53.9K | 67 | 21 |
| 48 | Water | 623 | 53.7K | 7 | 6 |
| 49 | Planets | 838 | 53.6K | 15 | 11 |
| 50 | Botany | 783 | 53.4K | 58 | 44 |
| 51 | Biophysics | 960 | 52.8K | 100 | 50 |
| 52 | Electronics | 753 | 52.2K | 36 | 8 |
| 53 | Environmental Policy | 460 | 50.9K | 9 | 5 |
| 54 | Colloids | 942 | 49.8K | 12 | 11 |
| 55 | Microelectronics | 495 | 48.2K | 10 | 9 |
| 56 | Technology | 900 | 46.2K | 18 | 10 |
| 57 | nanoscience | 536 | 43.6K | 41 | 33 |
| 58 | Image Processing | 342 | 43.5K | 39 | 7 |
| 59 | Polymers | 1,014 | 43.4K | 63 | 44 |
| 60 | Surface Chemistry | 793 | 43.1K | 18 | 7 |
| 61 | Water pollution | 438 | 43.0K | 15 | 7 |
| 62 | Bioinformatics | 309 | 41.2K | 17 | 13 |
| 63 | genome | 236 | 40.2K | 14 | 18 |
| 64 | Statistical physics | 1,091 | 40.2K | 31 | 36 |
| 65 | Signal Processing | 443 | 40.1K | 56 | 24 |
| 66 | Meteorites | 515 | 40.0K | 5 | 7 |
| 67 | Climatology | 547 | 39.8K | 14 | 13 |
| 68 | Electrochemistry | 839 | 39.4K | 51 | 11 |
| 69 | Atmospheric Chemistry | 596 | 39.3K | 5 | 10 |
| 70 | Computer Vision | 237 | 39.0K | 4 | 8 |
| 71 | Microbial Ecology | 453 | 36.9K | 17 | 26 |
| 72 | Analytical Chemistry | 685 | 36.9K | 57 | 28 |
| 73 | Immunology | 344 | 36.8K | 167 | 92 |
| 74 | Telecommunication | 415 | 36.7K | 50 | 24 |
| 75 | Neurophysiology | 470 | 35.8K | 88 | 80 |
| 76 | biological evolution | 285 | 35.3K | 46 | 36 |
| 77 | environmental pollution | 523 | 35.2K | 54 | 25 |
| 78 | Evolution | 261 | 34.8K | 44 | 16 |
| 79 | Molecular structure | 369 | 34.0K | 9 | 9 |
| 80 | Genetics | 498 | 33.2K | 106 | 126 |
| 81 | Biodiversity | 459 | 33.2K | 1 | 1 |
| 82 | Photonics | 396 | 32.9K | 35 | 10 |
| 83 | Automation | 380 | 32.5K | 39 | 23 |
| 84 | Immunity | 215 | 32.1K | 78 | 66 |
| 85 | Hydrology | 545 | 31.6K | 12 | 5 |
| 86 | Robotics | 360 | 31.2K | 9 | 3 |
| 87 | Environmental Chemistry | 262 | 30.0K | 17 | 8 |
| 88 | Biodiversity conservation | 265 | 29.1K | 18 | 17 |
| 89 | Physical Chemistry | 336 | 29.1K | 29 | 15 |
| 90 | plant molecular biology | 191 | 29.0K | 50 | 23 |
| 91 | Mathematical Physics | 698 | 28.8K | 22 | 19 |
| 92 | Pharmaceutical Chemistry | 410 | 27.5K | 79 | 40 |
| 93 | energy conservation | 324 | 27.3K | 21 | 14 |
| 94 | Genetic algorithms | 36 | 26.8K | 20 | 2 |
| 95 | Evolutionary Computation | 34 | 26.7K | 43 | 3 |
| 96 | Nanostructured Materials | 536 | 26.5K | 54 | 55 |
| 97 | Mathematics | 1,701 | 26.3K | 32 | 48 |
| 98 | Environmental monitoring | 356 | 25.8K | 37 | 17 |
| 99 | Energy Policy | 293 | 25.7K | 34 | 13 |
| 100 | Plant physiology | 194 | 25.4K | 79 | 25 |
| 101 | Climate change | 191 | 24.7K | 8 | 12 |
| 102 | Bacteriology | 289 | 24.7K | 44 | 38 |
| 103 | Eutrophication | 188 | 24.7K | 8 | 11 |
| 104 | Renewable Energy Sources | 221 | 24.7K | 47 | 36 |
| 105 | Pharmacology | 341 | 24.3K | 374 | 153 |
| 106 | Information Theory | 335 | 24.0K | 16 | 15 |
| 107 | polymerization | 603 | 23.4K | 94 | 79 |
| 108 | Medical Laboratory Science | 241 | 23.4K | 25 | 11 |
| 109 | concrete | 243 | 23.1K | 7 | 8 |
| 110 | Energy Conversion | 137 | 22.8K | 56 | 27 |
| 111 | Optical materials | 346 | 22.7K | 66 | 61 |
| 112 | Cancer | 158 | 22.7K | 312 | 126 |
| 113 | Nanostructures | 191 | 22.1K | 27 | 20 |
| 114 | nuclear magnetic resonance | 430 | 21.9K | 2 | 3 |
| 115 | Power Electronics | 243 | 21.8K | 21 | 10 |
| 116 | Plant cells | 218 | 21.2K | 35 | 56 |
| 117 | Light | 82 | 21.1K | 38 | 8 |
| 118 | soil microbiology | 290 | 20.9K | 15 | 20 |
| 119 | Metals | 262 | 20.7K | 61 | 44 |
| 120 | Proteome | 175 | 20.5K | 15 | 5 |
| 121 | Radio | 189 | 20.4K | 62 | 22 |
| 122 | Economics | 504 | 20.3K | 108 | 99 |
| 123 | Nonlinear Dynamics | 528 | 20.1K | 19 | 21 |
| 124 | Engineering | 512 | 19.9K | 39 | 20 |
| 125 | Physiology | 358 | 19.9K | 203 | 157 |
| 126 | Psychophysiology | 315 | 19.8K | 153 | 120 |
| 127 | Toxicology | 396 | 19.7K | 126 | 73 |
| 128 | Quantum Gravity | 357 | 19.6K | 185 | 141 |
| 129 | Metallurgy | 349 | 19.5K | 56 | 46 |
| 130 | Cement | 174 | 19.3K | 3 | 3 |
| 131 | Mineralogy | 323 | 19.1K | 11 | 8 |
| 132 | Composite Materials | 364 | 19.0K | 61 | 65 |
| 133 | Petrology | 315 | 18.8K | 6 | 8 |
| 134 | Developmental Biology | 251 | 18.5K | 92 | 85 |
| 135 | Medical Physics | 325 | 18.4K | 45 | 23 |
| 136 | atmospheric models | 228 | 18.2K | 5 | 4 |
| 137 | Plants | 235 | 18.0K | 42 | 48 |
| 138 | Metabolism | 236 | 17.9K | 160 | 136 |
| 139 | Biogeochemistry | 313 | 17.6K | 4 | 10 |
| 140 | Bioorganic chemistry | 213 | 17.4K | 78 | 21 |
| 141 | Organic Chemistry | 258 | 17.3K | 107 | 38 |
| 142 | energy resources | 192 | 17.0K | 9 | 7 |
| 143 | water supply | 286 | 16.9K | 4 | 8 |
| 144 | Transportation | 364 | 16.8K | 33 | 24 |
| 145 | Proteomics | 140 | 16.7K | 8 | 2 |
| 146 | Product life cycle | 144 | 16.3K | 1 | 1 |
| 146 | green products | 144 | 16.3K | 1 | 1 |
| 148 | Magnetic Resonance Spectroscopy | 305 | 16.2K | 4 | 3 |
| 148 | Host-parasite interactions | 134 | 16.2K | 38 | 32 |
| 150 | nucleic acids | 235 | 16.0K | 42 | 92 |
| 151 | Plant diseases | 277 | 15.5K | 48 | 25 |
| 152 | Human genetics | 92 | 15.1K | 276 | 300 |
| 153 | Electrical Engineering | 537 | 15.0K | 47 | 29 |
| 154 | Agriculture | 207 | 14.9K | 60 | 21 |
| 155 | Psychiatry | 203 | 14.9K | 340 | 248 |
| 156 | Nutrition | 245 | 14.8K | 226 | 158 |
| 157 | Brain | 216 | 14.7K | 184 | 129 |
| 158 | actuators | 296 | 14.5K | 24 | 15 |
| 158 | transducers | 296 | 14.5K | 24 | 15 |
| 160 | Environmental Management | 198 | 14.3K | 59 | 21 |
| 161 | Plant Ecology | 261 | 14.0K | 12 | 18 |
| 162 | Numerical Analysis | 219 | 13.9K | 26 | 4 |
| 163 | management | 145 | 13.7K | 293 | 202 |
| 164 | Sustainable Development | 165 | 13.5K | 16 | 14 |
| 165 | environmental protection | 175 | 13.2K | 130 | 51 |
| 166 | Soil Science | 294 | 13.2K | 36 | 39 |
| 167 | Neurobiology | 172 | 13.2K | 96 | 85 |
| 168 | Computational Chemistry | 85 | 13.0K | 5 | 19 |
| 169 | Earthquake Engineering | 341 | 12.7K | 23 | 20 |
| 170 | Nervous system | 180 | 12.7K | 134 | 111 |
| 171 | Neurons | 74 | 12.6K | 59 | 78 |
| 172 | Green Chemistry | 205 | 12.4K | 30 | 31 |
| 173 | Industrial Microbiology | 171 | 12.4K | 27 | 11 |
| 174 | global environmental change | 153 | 12.1K | 5 | 4 |
| 175 | Molecules | 280 | 12.0K | 10 | 10 |
| 176 | proteins | 228 | 12.0K | 41 | 37 |
| 177 | Geodynamics | 253 | 11.9K | 5 | 9 |
| 178 | Virulence | 118 | 11.8K | 41 | 34 |
| 179 | Quantum electronics | 264 | 11.6K | 29 | 10 |
| 180 | Psychology | 145 | 11.6K | 584 | 297 |
| 181 | Statistics | 204 | 11.6K | 145 | 96 |
| 182 | Biomechanics | 198 | 11.6K | 25 | 24 |
| 183 | Control Theory | 207 | 11.5K | 54 | 20 |
| 184 | human behavior | 180 | 11.5K | 125 | 136 |
| 185 | Behavior | 201 | 11.4K | 212 | 195 |
| 186 | transport vesicles | 6 | 11.4K | 97 | 70 |
| 187 | Solid State Chemistry | 396 | 11.2K | 21 | 20 |
| 188 | Molecular Genetics | 165 | 11.2K | 69 | 62 |
| 189 | Computer Science | 148 | 11.1K | 29 | 4 |
| 190 | Food | 171 | 11.0K | 138 | 68 |
| 191 | Diet | 129 | 10.9K | 148 | 92 |
| 192 | computer networks | 197 | 10.6K | 76 | 40 |
| 193 | Genomics | 212 | 10.5K | 126 | 102 |
| 194 | Immune system | 51 | 10.4K | 118 | 88 |
| 195 | Microscopy | 166 | 10.3K | 9 | 9 |
| 196 | Wireless Communication Systems | 154 | 10.3K | 164 | 86 |
| 197 | Oceanography | 159 | 10.1K | 132 | 93 |
| 198 | Fluid Mechanics | 133 | 10.0K | 63 | 20 |
| 199 | Soil biology | 147 | 10.0K | 24 | 32 |
| 200 | Combinatorial chemistry | 169 | 10.0K | 4 | 10 |
| 201 | Photochemistry | 66 | 9.9K | 103 | 4 |
| 202 | Economic Development | 116 | 9.9K | 69 | 40 |
| 203 | Public Health | 151 | 9.7K | 549 | 347 |
| 204 | Population Genetics | 139 | 9.7K | 37 | 43 |
| 205 | Genetic engineering | 150 | 9.6K | 58 | 39 |
| 206 | Animal Behavior | 146 | 9.6K | 176 | 135 |
| 207 | Molecular ecology | 131 | 9.6K | 29 | 43 |
| 208 | Agricultural Ecology | 144 | 9.4K | 22 | 21 |
| 209 | cell physiology | 124 | 9.3K | 83 | 66 |
| 210 | Environmental Microbiology | 129 | 9.3K | 17 | 20 |
| 211 | Nanoparticles | 198 | 9.2K | 46 | 53 |
| 212 | Bones | 94 | 9.2K | 20 | 7 |
| 213 | Cell differentiation | 120 | 9.1K | 136 | 157 |
| 214 | Ethology | 126 | 9.1K | 131 | 109 |
| 215 | Engineering Geology | 227 | 9.1K | 26 | 29 |
| 216 | Soft Condensed Matter | 240 | 9.1K | 3 | 5 |
| 217 | Diagnostic Imaging | 192 | 9.1K | 60 | 45 |
| 218 | biopolymers | 236 | 9.1K | 3 | 6 |
| 219 | Ceramics | 117 | 9.1K | 72 | 27 |
| 220 | biological factors | 93 | 9.1K | 74 | 11 |
| 221 | Embryology | 127 | 9.0K | 117 | 107 |
| 222 | Biogeochemical cycles | 101 | 9.0K | 4 | 9 |
| 223 | Glass | 113 | 9.0K | 56 | 27 |
| 224 | pottery | 112 | 9.0K | 55 | 27 |
| 225 | Seismology | 183 | 9.0K | 9 | 10 |
| 226 | Geomagnetism | 235 | 8.9K | 6 | 4 |
| 227 | Rock Mechanics | 186 | 8.9K | 28 | 25 |
| 228 | Solar Energy | 151 | 8.9K | 22 | 13 |
| 229 | Neuropsychology | 160 | 8.8K | 147 | 95 |
| 230 | United States | 229 | 8.8K | 361 | 333 |
| 231 | lasers | 268 | 8.7K | 48 | 27 |
| 232 | Cognitive Science | 55 | 8.7K | 176 | 61 |
| 233 | Photobiology | 47 | 8.6K | 91 | 2 |
| 234 | Hydraulic Engineering | 292 | 8.5K | 10 | 13 |
| 235 | Europe | 226 | 8.5K | 146 | 77 |
| 236 | Endocrinology | 95 | 8.4K | 420 | 308 |
| 237 | Structural Engineering | 263 | 8.3K | 40 | 49 |
| 238 | Anatomy | 112 | 8.3K | 182 | 107 |
| 239 | Metabolic diseases | 81 | 8.2K | 318 | 224 |
| 240 | Hematology | 95 | 8.2K | 392 | 248 |
| 241 | Mass Spectrometry | 156 | 8.2K | 10 | 6 |
| 242 | Cheminformatics | 48 | 8.2K | 4 | 2 |
| 243 | Growth | 96 | 8.1K | 110 | 114 |
| 244 | Sustainable Engineering | 161 | 8.0K | 26 | 32 |
| 245 | Histology | 123 | 8.0K | 104 | 61 |
| 246 | Environmental Law | 58 | 7.9K | 92 | 29 |
| 247 | Industrial Engineering | 231 | 7.8K | 27 | 31 |
| 248 | Manufacturing Processes | 300 | 7.8K | 48 | 57 |
| 249 | mass transfer | 144 | 7.7K | 80 | 52 |
| 250 | Neurochemistry | 125 | 7.7K | 243 | 168 |
| 251 | sustainability | 77 | 7.6K | 10 | 13 |
| 252 | Political Science | 134 | 7.6K | 138 | 68 |
| 253 | nuclear magnetic resonance spectroscopy | 178 | 7.5K | 2 | 5 |
| 254 | Radiography | 66 | 7.3K | 77 | 41 |
| 255 | Clinical Chemistry | 133 | 7.3K | 230 | 155 |
| 256 | Crystallography | 179 | 7.3K | 24 | 24 |
| 257 | Geomorphology | 170 | 7.2K | 15 | 25 |
| 258 | Mobile Computing | 121 | 7.2K | 28 | 12 |
| 259 | plant communities | 132 | 7.2K | 18 | 39 |
| 260 | Soil Mechanics | 156 | 7.1K | 47 | 41 |
| 261 | gene mapping | 135 | 7.1K | 75 | 105 |
| 262 | Medical innovations | 57 | 7.1K | 62 | 60 |
| 263 | Fluid Dynamics | 176 | 7.0K | 14 | 12 |
| 264 | Structural dynamics | 173 | 7.0K | 24 | 34 |
| 265 | Entomology | 196 | 7.0K | 85 | 55 |
| 266 | Sociology | 103 | 7.0K | 341 | 196 |
| 267 | Bacterial infections | 48 | 6.9K | 59 | 37 |
| 268 | Ocean Engineering | 188 | 6.9K | 73 | 58 |
| 269 | mycoses | 63 | 6.9K | 24 | 33 |
| 270 | natural products | 52 | 6.9K | 221 | 25 |
| 271 | Psychopharmacology | 106 | 6.8K | 122 | 116 |
| 272 | biological monitoring | 92 | 6.7K | 3 | 2 |
| 273 | Medical Microbiology | 68 | 6.7K | 328 | 191 |
| 274 | fuel cells | 102 | 6.7K | 70 | 93 |
| 275 | Risk | 83 | 6.6K | 8 | 9 |
| 276 | United Kingdom | 79 | 6.6K | 167 | 71 |
| 277 | Risk Management | 77 | 6.5K | 8 | 3 |
| 278 | energy development | 52 | 6.5K | 25 | 33 |
| 279 | Combustion | 192 | 6.5K | 48 | 56 |
| 280 | Immunotherapy | 59 | 6.5K | 241 | 134 |
| 281 | Probability | 94 | 6.4K | 7 | 4 |
| 282 | drug development | 44 | 6.4K | 92 | 62 |
| 283 | cryosphere | 143 | 6.4K | 4 | 9 |
| 284 | Atomic spectroscopy | 139 | 6.4K | 10 | 7 |
| 285 | Database Management | 160 | 6.3K | 18 | 30 |
| 285 | Economic History | 171 | 6.3K | 180 | 104 |
| 287 | Decision making | 62 | 6.3K | 120 | 48 |
| 288 | feeding behavior | 66 | 6.3K | 37 | 15 |
| 289 | Quantum theory | 170 | 6.3K | 8 | 3 |
| 290 | Appetite | 63 | 6.3K | 28 | 12 |
| 291 | Energy Storage | 87 | 6.1K | 65 | 40 |
| 292 | Mental Disorders | 97 | 6.1K | 320 | 284 |
| 293 | Pharmacy | 137 | 6.0K | 130 | 82 |
| 294 | Allergy | 45 | 6.0K | 194 | 145 |
| 295 | Financial management | 66 | 6.0K | 6 | 4 |
| 296 | Medical genetics | 97 | 5.9K | 360 | 342 |
| 297 | Radiation | 131 | 5.9K | 68 | 34 |
| 298 | Biogeography | 98 | 5.9K | 23 | 39 |
| 299 | Geography | 184 | 5.9K | 109 | 133 |
| 300 | Operations Research | 170 | 5.9K | 83 | 106 |
| 301 | viruses | 78 | 5.9K | 186 | 150 |
| 302 | Oncology | 35 | 5.9K | 453 | 312 |
| 303 | Molecular Microbiology | 69 | 5.8K | 71 | 67 |
| 304 | Forest Ecology | 131 | 5.7K | 37 | 40 |
| 305 | Quantum Optics | 116 | 5.7K | 11 | 11 |
| 306 | Mycology | 131 | 5.6K | 73 | 63 |
| 307 | Cell metabolism | 40 | 5.6K | 41 | 74 |
| 308 | Information Science | 123 | 5.6K | 122 | 102 |
| 309 | Homeostasis | 39 | 5.6K | 30 | 72 |
| 310 | Water quality management | 109 | 5.5K | 74 | 18 |
| 311 | Aerosols | 137 | 5.5K | 8 | 8 |
| 312 | Biosensors | 84 | 5.5K | 65 | 56 |
| 313 | natural disasters | 147 | 5.4K | 5 | 7 |
| 314 | Developing countries | 102 | 5.4K | 154 | 89 |
| 315 | Chromosome mapping | 111 | 5.4K | 85 | 86 |
| 316 | Engineering Mathematics | 113 | 5.4K | 84 | 35 |
| 317 | protein | 122 | 5.4K | 39 | 61 |
| 318 | Environmental Economics | 34 | 5.4K | 15 | 4 |
| 319 | probabilities | 192 | 5.3K | 21 | 6 |
| 320 | Rheology | 124 | 5.3K | 9 | 11 |
| 321 | Information Technology | 71 | 5.2K | 179 | 97 |
| 322 | Food preferences | 56 | 5.2K | 17 | 9 |
| 323 | Forest Management | 116 | 5.2K | 50 | 42 |
| 324 | ecosystem | 101 | 5.2K | 44 | 70 |
| 325 | Drug design | 65 | 5.2K | 83 | 21 |
| 326 | Paleoclimatology | 104 | 5.2K | 42 | 37 |
| 327 | Drug delivery systems | 48 | 5.1K | 165 | 72 |
| 328 | Membranes | 100 | 5.1K | 172 | 153 |
| 329 | Marine Biology | 79 | 5.1K | 403 | 208 |
| 330 | Hydrogeology | 106 | 5.1K | 6 | 3 |
| 331 | Semiconductors | 171 | 5.1K | 69 | 25 |
| 332 | Laser Spectroscopy | 91 | 5.1K | 16 | 12 |
| 333 | peace | 73 | 5.0K | 13 | 9 |
| 334 | Econometrics | 79 | 5.0K | 122 | 100 |
| 335 | Electromagnetic compatibility | 122 | 5.0K | 3 | 2 |
| 336 | Natural resources | 125 | 5.0K | 5 | 13 |
| 337 | Recycling | 66 | 4.8K | 14 | 13 |
| 338 | Waste management | 82 | 4.8K | 48 | 12 |
| 339 | Water Purification | 80 | 4.8K | 36 | 9 |
| 340 | enzymes | 121 | 4.8K | 49 | 44 |
| 341 | visualization | 167 | 4.8K | 43 | 19 |
| 342 | Molecular evolution | 92 | 4.8K | 82 | 123 |
| 343 | Systems Biology | 163 | 4.7K | 17 | 33 |
| 344 | Databases | 122 | 4.7K | 10 | 18 |
| 345 | Memory | 111 | 4.7K | 173 | 162 |
| 346 | Building Materials | 101 | 4.7K | 136 | 154 |
| 347 | Microwaves | 132 | 4.6K | 88 | 59 |
| 348 | rehabilitation | 78 | 4.6K | 224 | 147 |
| 349 | System analysis | 150 | 4.6K | 89 | 89 |
| 350 | Agricultural Chemistry | 83 | 4.5K | 245 | 165 |
| 351 | Fracture mechanics | 102 | 4.5K | 102 | 57 |
| 352 | Production Management | 47 | 4.4K | 132 | 93 |
| 353 | Fiber Optics | 86 | 4.4K | 76 | 39 |
| 354 | Crystal growth | 101 | 4.4K | 22 | 21 |
| 355 | emergency management | 108 | 4.4K | 2 | 2 |
| 355 | world | 68 | 4.4K | 38 | 34 |
| 357 | Industrial Safety | 68 | 4.4K | 59 | 25 |
| 358 | Paleoecology | 79 | 4.4K | 64 | 41 |
| 359 | Wildlife conservation | 48 | 4.3K | 149 | 77 |
| 360 | Earthquakes | 127 | 4.3K | 3 | 3 |
| 361 | economic policy | 125 | 4.2K | 116 | 73 |
| 362 | Organometallic compounds | 104 | 4.2K | 49 | 47 |
| 363 | Solar System | 99 | 4.2K | 69 | 73 |
| 364 | Production Engineering | 224 | 4.2K | 47 | 64 |
| 365 | Perception | 108 | 4.2K | 191 | 164 |
| 366 | Photogrammetry | 156 | 4.1K | 19 | 3 |
| 367 | micromechanics | 73 | 4.1K | 29 | 12 |
| 368 | Autonomous robots | 41 | 4.1K | 5 | 3 |
| 369 | Attention | 102 | 4.0K | 163 | 130 |
| 370 | Visual Perception | 102 | 4.0K | 156 | 116 |
| 371 | Environmental Psychology | 25 | 4.0K | 24 | 14 |
| 372 | Energy Harvesting | 30 | 4.0K | 64 | 45 |
| 373 | Fungi | 96 | 4.0K | 42 | 71 |
| 374 | Computer-Aided Design | 107 | 4.0K | 33 | 37 |
| 375 | Bioelectronics | 59 | 4.0K | 76 | 73 |
| 376 | Environmental pollutants | 106 | 4.0K | 101 | 112 |
| 377 | Cognitive neuroscience | 55 | 4.0K | 150 | 157 |
| 378 | organization | 23 | 4.0K | 195 | 116 |
| 379 | Mental illness | 63 | 4.0K | 277 | 258 |
| 380 | Pathology | 59 | 3.9K | 395 | 280 |
| 381 | Business | 53 | 3.9K | 358 | 302 |
| 382 | Paleogeography | 69 | 3.9K | 55 | 35 |
| 383 | biocatalysis | 27 | 3.9K | 6 | 20 |
| 383 | Homogeneous catalysis | 27 | 3.9K | 6 | 20 |
| 383 | Heterogeneous catalysis | 27 | 3.9K | 6 | 20 |
| 386 | Ceramic materials | 85 | 3.9K | 77 | 39 |
| 387 | Remote Sensing | 179 | 3.8K | 25 | 22 |
| 388 | aerosol | 93 | 3.8K | 7 | 6 |
| 389 | environmental issues | 43 | 3.8K | 11 | 3 |
| 390 | Agronomy | 34 | 3.7K | 68 | 45 |
| 391 | finance | 77 | 3.7K | 308 | 208 |
| 392 | pollutants | 93 | 3.7K | 92 | 102 |
| 393 | Photography | 485 | 3.7K | 42 | 16 |
| 394 | city planning | 137 | 3.7K | 58 | 91 |
| 395 | Ferroelectricity | 188 | 3.7K | 12 | 15 |
| 396 | Environmental Toxicology | 60 | 3.6K | 270 | 194 |
| 397 | Dynamics | 128 | 3.6K | 34 | 22 |
| 398 | Fisheries | 73 | 3.6K | 179 | 107 |
| 399 | Cybernetics | 72 | 3.6K | 146 | 166 |
| 400 | Diabetes | 42 | 3.6K | 425 | 308 |
| 401 | international cooperation | 45 | 3.5K | 40 | 10 |
| 402 | Cytogenetics | 51 | 3.5K | 199 | 200 |
| 403 | International Relations | 101 | 3.5K | 64 | 36 |
| 404 | weather | 124 | 3.5K | 1 | 3 |
| 405 | Breeding | 66 | 3.5K | 116 | 68 |
| 406 | Sedimentology | 61 | 3.5K | 15 | 14 |
| 407 | Informatics | 78 | 3.4K | 11 | 29 |
| 408 | Magnetic Resonance Imaging | 89 | 3.4K | 15 | 18 |
| 409 | Groundwater | 78 | 3.4K | 22 | 14 |
| 410 | Biomass Energy | 46 | 3.4K | 443 | 327 |
| 411 | Roads | 132 | 3.4K | 42 | 32 |
| 412 | infection | 59 | 3.4K | 197 | 136 |
| 413 | drugs | 76 | 3.4K | 204 | 140 |
| 414 | Human-Computer Interaction | 102 | 3.4K | 26 | 53 |
| 415 | Zeolites | 52 | 3.3K | 52 | 26 |
| 416 | Diabetes mellitus | 34 | 3.3K | 456 | 305 |
| 417 | Radio waves | 51 | 3.3K | 151 | 101 |
| 418 | Mining Engineering | 52 | 3.3K | 40 | 26 |
| 419 | Data Mining | 52 | 3.3K | 37 | 53 |
| 420 | Mechatronics | 74 | 3.3K | 38 | 27 |
| 421 | Zoology | 75 | 3.3K | 355 | 215 |
| 422 | Process Control | 44 | 3.3K | 62 | 55 |
| 423 | solar cells | 39 | 3.3K | 75 | 32 |
| 424 | Group decision making | 30 | 3.3K | 42 | 3 |
| 425 | Public Choice | 29 | 3.2K | 34 | 3 |
| 426 | Pharmacogenetics | 49 | 3.2K | 83 | 48 |
| 427 | Geothermal Energy | 57 | 3.2K | 5 | 3 |
| 428 | Molecular Spectroscopy | 96 | 3.2K | 76 | 58 |
| 429 | Tribology | 67 | 3.2K | 101 | 47 |
| 430 | Lightweight concrete | 42 | 3.2K | 40 | 40 |
| 431 | coal | 58 | 3.2K | 191 | 139 |
| 432 | Bioinorganic chemistry | 94 | 3.1K | 84 | 59 |
| 433 | Genetic regulation | 49 | 3.1K | 120 | 144 |
| 434 | Multimedia Systems | 71 | 3.1K | 126 | 62 |
| 435 | Ultrasonics | 84 | 3.1K | 50 | 58 |
| 436 | Developmental Genetics | 36 | 3.1K | 86 | 98 |
| 437 | Sun | 63 | 3.1K | 44 | 36 |
| 438 | Nuclear Medicine | 74 | 3.1K | 97 | 77 |
| 439 | Ore deposits | 54 | 3.1K | 45 | 21 |
| 440 | Pharmacognosy | 49 | 3.1K | 274 | 163 |
| 441 | Detectors | 82 | 3.0K | 84 | 36 |
| 442 | free radicals | 44 | 3.0K | 189 | 181 |
| 443 | Geochemical Modeling | 50 | 3.0K | 17 | 21 |
| 443 | geological modeling | 50 | 3.0K | 19 | 21 |
| 445 | Superconductors | 118 | 3.0K | 65 | 35 |
| 446 | Cerebral cortex | 60 | 3.0K | 101 | 129 |
| 447 | Microorganisms | 50 | 3.0K | 81 | 124 |
| 448 | Electrochemical Analysis | 49 | 3.0K | 215 | 92 |
| 449 | warfare | 34 | 3.0K | 28 | 14 |
| 450 | Obesity | 44 | 2.9K | 381 | 281 |
| 451 | Cosmochemistry | 94 | 2.9K | 21 | 50 |
| 452 | wood | 103 | 2.9K | 19 | 10 |
| 453 | particles | 84 | 2.9K | 22 | 14 |
| 454 | vibration | 66 | 2.9K | 89 | 76 |
| 455 | bioclimatology | 39 | 2.9K | 52 | 11 |
| 456 | Mechanical Engineering | 123 | 2.9K | 170 | 135 |
| 457 | locomotion | 58 | 2.9K | 21 | 27 |
| 457 | posture | 58 | 2.9K | 21 | 27 |
| 457 | gait | 58 | 2.9K | 21 | 27 |
| 457 | walking | 58 | 2.9K | 21 | 27 |
| 461 | Industrial Ecology | 58 | 2.9K | 4 | 6 |
| 462 | Intelligent Transportation Systems | 67 | 2.9K | 79 | 93 |
| 463 | Climate | 41 | 2.9K | 24 | 22 |
| 464 | Cosmology | 40 | 2.9K | 66 | 33 |
| 465 | Multiphase Flow | 62 | 2.9K | 9 | 14 |
| 466 | Food Microbiology | 46 | 2.9K | 146 | 116 |
| 467 | War and Society | 33 | 2.9K | 18 | 12 |
| 468 | Chemical processes | 62 | 2.9K | 18 | 3 |
| 469 | Social Sciences | 113 | 2.8K | 324 | 306 |
| 470 | Hazardous waste | 34 | 2.8K | 72 | 31 |
| 471 | Geodesy | 77 | 2.8K | 23 | 14 |
| 472 | Epidemiology | 65 | 2.8K | 620 | 493 |
| 473 | glycoproteins | 37 | 2.8K | 34 | 19 |
| 473 | Glycoconjugates | 37 | 2.8K | 34 | 19 |
| 473 | glycolipids | 37 | 2.8K | 34 | 19 |
| 476 | Planetary Science | 103 | 2.8K | 18 | 22 |
| 477 | Stochastic Processes | 81 | 2.8K | 8 | 4 |
| 478 | Neural circuitry | 60 | 2.8K | 194 | 160 |
| 479 | Machine Learning | 21 | 2.8K | 42 | 40 |
| 480 | Public Policy | 42 | 2.8K | 299 | 140 |
| 481 | behavioral medicine | 32 | 2.8K | 278 | 178 |
| 482 | Hydrodynamics | 74 | 2.8K | 21 | 27 |
| 483 | Psychoneuroimmunology | 37 | 2.7K | 60 | 52 |
| 483 | Neuroimmunology | 37 | 2.7K | 75 | 63 |
| 485 | radioactive waste | 32 | 2.7K | 56 | 32 |
| 485 | industrial waste | 32 | 2.7K | 58 | 32 |
| 487 | clay | 45 | 2.7K | 44 | 29 |
| 488 | Biopharmaceutics | 33 | 2.7K | 146 | 62 |
| 489 | Gene expression regulation | 39 | 2.7K | 114 | 115 |
| 490 | Electrophysiology | 80 | 2.7K | 67 | 44 |
| 491 | nuclear astrophysics | 32 | 2.7K | 58 | 24 |
| 492 | Pediatric Neurology | 18 | 2.7K | 311 | 207 |
| 493 | Catalysts | 62 | 2.6K | 17 | 13 |
| 494 | Plastics | 67 | 2.6K | 129 | 83 |
| 495 | Animal ecology | 53 | 2.6K | 179 | 141 |
| 496 | Carbohydrates | 32 | 2.6K | 31 | 17 |
| 497 | Tunneling | 38 | 2.6K | 45 | 26 |
| 497 | underground construction | 38 | 2.6K | 45 | 26 |
| 499 | Conservation Biology | 59 | 2.6K | 104 | 132 |
| 499 | Genetic therapy | 50 | 2.6K | 128 | 115 |
| 501 | Animal Nutrition | 103 | 2.6K | 23 | 22 |
| 502 | Paleoceanography | 32 | 2.6K | 17 | 15 |
| 503 | Oligosaccharide | 29 | 2.6K | 23 | 13 |
| 504 | Medical Technology | 69 | 2.5K | 82 | 75 |
| 505 | Integrated Circuits | 84 | 2.5K | 16 | 1 |
| 505 | Stem cells | 67 | 2.5K | 162 | 196 |
| 507 | Agricultural Science | 14 | 2.5K | 62 | 24 |
| 508 | Infections | 28 | 2.5K | 235 | 148 |
| 509 | Systems Engineering | 68 | 2.5K | 211 | 171 |
| 510 | Medical Imaging | 58 | 2.5K | 21 | 24 |
| 511 | Periglacial processes | 30 | 2.5K | 7 | 6 |
| 511 | Permafrost | 30 | 2.5K | 7 | 6 |
| 511 | Frozen ground | 30 | 2.5K | 8 | 6 |
| 514 | Health Policy | 53 | 2.5K | 371 | 254 |
| 515 | Schizophrenia | 47 | 2.5K | 162 | 149 |
| 516 | Agricultural systems | 51 | 2.5K | 17 | 13 |
| 517 | Development | 46 | 2.5K | 69 | 74 |
| 518 | Ultrasound | 73 | 2.4K | 38 | 33 |
| 519 | Social Psychology | 60 | 2.4K | 405 | 415 |
| 519 | Product Design | 136 | 2.4K | 19 | 13 |
| 521 | Molecular Imaging | 52 | 2.4K | 73 | 71 |
| 521 | Oncogenes | 32 | 2.4K | 254 | 247 |
| 523 | Sports Medicine | 90 | 2.4K | 313 | 357 |
| 523 | structural stability | 33 | 2.4K | 22 | 13 |
| 525 | innovation | 29 | 2.4K | 48 | 97 |
| 526 | Physical organic chemistry | 57 | 2.4K | 128 | 56 |
| 527 | Economic Assistance | 42 | 2.4K | 56 | 65 |
| 528 | Carbon | 50 | 2.4K | 141 | 210 |
| 529 | Land use | 63 | 2.4K | 51 | 57 |
| 530 | Ergonomics | 90 | 2.4K | 77 | 70 |
| 531 | Hydrometeorology | 22 | 2.4K | 36 | 29 |
| 532 | Education | 51 | 2.4K | 755 | 465 |
| 533 | Social Change | 29 | 2.4K | 123 | 84 |
| 534 | Animal genetics | 113 | 2.4K | 30 | 47 |
| 535 | gene therapy | 40 | 2.3K | 148 | 131 |
| 536 | Nanoelectronics | 119 | 2.3K | 16 | 8 |
| 537 | Geobiology | 58 | 2.3K | 10 | 8 |
| 538 | Educational Psychology | 43 | 2.3K | 302 | 210 |
| 539 | optical pattern recognition | 8 | 2.3K | 45 | 5 |
| 540 | Information Systems | 54 | 2.3K | 87 | 72 |
| 541 | food technology | 50 | 2.3K | 447 | 361 |
| 542 | internet | 46 | 2.3K | 201 | 156 |
| 543 | freshwater biology | 40 | 2.3K | 93 | 59 |
| 544 | Ecosystem management | 48 | 2.3K | 44 | 46 |
| 545 | Semiconductor industry | 115 | 2.3K | 7 | 4 |
| 546 | Crystallization | 35 | 2.3K | 34 | 8 |
| 547 | Entrepreneurship | 19 | 2.3K | 229 | 180 |
| 547 | Chemical analysis | 52 | 2.3K | 68 | 40 |
| 547 | commerce | 31 | 2.3K | 261 | 195 |
| 550 | Organometallic chemistry | 70 | 2.3K | 171 | 74 |
| 551 | Food additives | 44 | 2.3K | 112 | 128 |
| 552 | Cognition | 70 | 2.2K | 281 | 317 |
| 553 | atmosphere | 66 | 2.2K | 27 | 35 |
| 554 | soil management | 41 | 2.2K | 38 | 37 |
| 555 | Social behavior | 54 | 2.2K | 156 | 185 |
| 556 | mathematical analysis | 166 | 2.2K | 128 | 175 |
| 557 | Smart Materials | 77 | 2.2K | 42 | 55 |
| 557 | Respiration | 52 | 2.2K | 237 | 215 |
| 559 | Sound | 60 | 2.2K | 95 | 79 |
| 560 | brain mapping | 39 | 2.2K | 92 | 91 |
| 561 | environmental indicators | 46 | 2.1K | 67 | 65 |
| 562 | Paleontology | 40 | 2.1K | 280 | 120 |
| 563 | Mechanics | 82 | 2.1K | 62 | 74 |
| 564 | Strategic planning | 22 | 2.1K | 116 | 45 |
| 565 | Aging | 59 | 2.1K | 483 | 446 |
| 566 | Food Policy | 33 | 2.1K | 23 | 17 |
| 567 | Energy Consumption | 30 | 2.0K | 31 | 25 |
| 568 | International security | 37 | 2.0K | 15 | 26 |
| 569 | Pharmaceutical Technology | 44 | 2.0K | 214 | 152 |
| 570 | Sleep | 68 | 2.0K | 179 | 206 |
| 571 | Sleep Disorders | 67 | 2.0K | 183 | 205 |
| 571 | drug therapy | 33 | 2.0K | 562 | 341 |
| 573 | Landscape Ecology | 30 | 2.0K | 48 | 35 |
| 574 | Molecular Pharmacology | 41 | 2.0K | 99 | 97 |
| 575 | Plant breeding | 43 | 2.0K | 79 | 41 |
| 576 | Heat Exchangers | 35 | 2.0K | 209 | 133 |
| 577 | viral genetics | 17 | 2.0K | 83 | 109 |
| 578 | Chromosomes | 67 | 2.0K | 50 | 82 |
| 579 | plasticity | 20 | 2.0K | 81 | 55 |
| 580 | air | 22 | 2.0K | 21 | 21 |
| 581 | Geotechnical Engineering | 54 | 2.0K | 54 | 61 |
| 582 | Magnetic Materials | 76 | 2.0K | 133 | 176 |
| 583 | tillage | 32 | 1.9K | 38 | 35 |
| 584 | Greenhouse gases | 38 | 1.9K | 21 | 24 |
| 585 | Regional Planning | 70 | 1.9K | 149 | 187 |
| 586 | Atmospheric Science | 93 | 1.9K | 2 | 3 |
| 587 | Plant genetic engineering | 39 | 1.9K | 114 | 128 |
| 587 | Synchrotron Radiation | 51 | 1.9K | 20 | 9 |
| 589 | Statistical Mechanics | 41 | 1.9K | 90 | 62 |
| 590 | Quantum Communication | 25 | 1.9K | 8 | 8 |
| 591 | conflict management | 34 | 1.9K | 12 | 15 |
| 592 | Astrocytes | 31 | 1.9K | 40 | 58 |
| 593 | Vaccines | 34 | 1.9K | 354 | 225 |
| 594 | Biomolecules | 17 | 1.9K | 76 | 35 |
| 595 | Bioenergetics | 33 | 1.9K | 131 | 110 |
| 596 | Granular materials | 51 | 1.9K | 18 | 10 |
| 597 | hydrocolloids | 38 | 1.9K | 89 | 129 |
| 598 | Energy metabolism | 29 | 1.8K | 130 | 96 |
| 599 | Nutrition physiology | 30 | 1.8K | 96 | 63 |
| 600 | Technological Innovations | 60 | 1.8K | 30 | 50 |
| 601 | Radioisotopes | 74 | 1.8K | 55 | 28 |
| 602 | agricultural policy | 27 | 1.8K | 23 | 15 |
| 603 | Psychometrics | 6 | 1.8K | 303 | 76 |
| 604 | Experimental Psychology | 9 | 1.8K | 329 | 99 |
| 605 | Cryptography | 37 | 1.8K | 41 | 13 |
| 606 | Plant Genetics | 29 | 1.8K | 111 | 125 |
| 607 | Learning | 42 | 1.8K | 245 | 260 |
| 608 | Analytical Biochemistry | 55 | 1.8K | 154 | 183 |
| 609 | cell membrane | 25 | 1.7K | 134 | 94 |
| 610 | Cardiovascular system | 28 | 1.7K | 420 | 480 |
| 611 | Signal Transduction | 42 | 1.7K | 217 | 297 |
| 612 | Cell death | 29 | 1.7K | 280 | 301 |
| 613 | software | 33 | 1.7K | 101 | 65 |
| 614 | Environmental Geology | 65 | 1.7K | 106 | 169 |
| 615 | Structural design | 50 | 1.7K | 65 | 63 |
| 616 | Soil ecology | 43 | 1.7K | 65 | 84 |
| 617 | supercritical fluids | 37 | 1.7K | 35 | 28 |
| 618 | International Finance | 55 | 1.7K | 193 | 198 |
| 619 | solar power | 25 | 1.7K | 119 | 77 |
| 620 | Geometry | 119 | 1.6K | 29 | 35 |
| 621 | Medical Oncology | 48 | 1.6K | 301 | 330 |
| 622 | Photovoltaic Cells | 15 | 1.6K | 32 | 11 |
| 622 | hazard mitigation | 51 | 1.6K | 28 | 52 |
| 624 | Solar power plants | 14 | 1.6K | 34 | 11 |
| 625 | Systems Analysis | 39 | 1.6K | 114 | 55 |
| 626 | Electrophoresis | 41 | 1.6K | 247 | 181 |
| 627 | DNA | 31 | 1.6K | 26 | 6 |
| 628 | Bibliometrics | 28 | 1.6K | 11 | 12 |
| 629 | clay minerals | 23 | 1.6K | 34 | 20 |
| 630 | Porous materials | 75 | 1.6K | 11 | 22 |
| 631 | Structure-activity relationship | 7 | 1.6K | 93 | 33 |
| 632 | Surface properties | 29 | 1.6K | 161 | 116 |
| 633 | Radiochemistry | 55 | 1.6K | 90 | 34 |
| 634 | Landslides | 37 | 1.6K | 11 | 17 |
| 635 | Recombinant DNA | 41 | 1.5K | 200 | 190 |
| 636 | calcification | 12 | 1.5K | 193 | 59 |
| 637 | Organelle biogenesis | 28 | 1.5K | 9 | 7 |
| 638 | Geriatrics | 41 | 1.5K | 633 | 504 |
| 639 | Radiobiology | 45 | 1.5K | 225 | 242 |
| 640 | Chemical Ecology | 31 | 1.5K | 71 | 59 |
| 641 | Communication | 30 | 1.5K | 548 | 401 |
| 642 | Civil Engineering | 91 | 1.5K | 94 | 88 |
| 643 | DNA polymerases | 18 | 1.5K | 92 | 142 |
| 644 | Internet of Things | 36 | 1.5K | 189 | 195 |
| 645 | Insects | 35 | 1.5K | 262 | 173 |
| 646 | Enzyme | 34 | 1.5K | 28 | 32 |
| 647 | Organizational Behavior | 21 | 1.5K | 139 | 135 |
| 648 | Molecular cloning | 39 | 1.5K | 190 | 171 |
| 648 | Genetic recombination | 39 | 1.5K | 184 | 166 |
| 650 | optical instruments | 26 | 1.4K | 56 | 44 |
| 651 | data protection | 46 | 1.4K | 6 | 18 |
| 652 | research and development | 26 | 1.4K | 18 | 22 |
| 653 | Social Networks | 22 | 1.4K | 30 | 36 |
| 654 | Surface-Active Agents | 24 | 1.4K | 190 | 121 |
| 655 | Nuclear Chemistry | 44 | 1.4K | 138 | 55 |
| 656 | China | 61 | 1.4K | 429 | 388 |
| 657 | mammals | 31 | 1.4K | 177 | 88 |
| 657 | amino acids | 14 | 1.4K | 116 | 19 |
| 659 | Welfare Economics | 28 | 1.4K | 58 | 44 |
| 660 | Industrial Policy | 15 | 1.3K | 128 | 39 |
| 661 | Geographic information systems | 72 | 1.3K | 35 | 51 |
| 662 | Ophthalmology | 30 | 1.3K | 509 | 400 |
| 662 | Medical Anthropology | 9 | 1.3K | 615 | 305 |
| 664 | Thin Films | 37 | 1.3K | 31 | 15 |
| 665 | Nuclear Energy | 75 | 1.3K | 104 | 96 |
| 666 | Sustainable agriculture | 33 | 1.3K | 67 | 72 |
| 667 | forest policy | 33 | 1.3K | 47 | 25 |
| 668 | Synthetic biology | 33 | 1.3K | 31 | 25 |
| 668 | pheromones | 25 | 1.3K | 76 | 74 |
| 670 | Environmental risk assessment | 32 | 1.3K | 10 | 15 |
| 670 | Interactive multimedia | 30 | 1.3K | 89 | 81 |
| 672 | Parasitic Diseases | 26 | 1.3K | 519 | 360 |
| 673 | Chromatography | 43 | 1.3K | 231 | 174 |
| 673 | Chromatographic analysis | 43 | 1.3K | 293 | 207 |
| 675 | multimedia | 29 | 1.3K | 88 | 81 |
| 676 | Combinatorial analysis | 129 | 1.3K | 31 | 70 |
| 677 | Reproduction | 47 | 1.2K | 461 | 499 |
| 678 | Ultrasonic Imaging | 41 | 1.2K | 30 | 23 |
| 679 | biological invasions | 25 | 1.2K | 73 | 52 |
| 680 | Fertilizers | 38 | 1.2K | 38 | 32 |
| 681 | Plant tissue culture | 42 | 1.2K | 47 | 59 |
| 682 | Plant Biotechnology | 16 | 1.2K | 206 | 98 |
| 683 | Radiation effects | 25 | 1.2K | 58 | 56 |
| 684 | mental processes | 24 | 1.2K | 51 | 23 |
| 685 | Extracellular matrix | 15 | 1.2K | 39 | 45 |
| 685 | Population | 29 | 1.2K | 137 | 125 |
| 685 | collagen | 15 | 1.2K | 47 | 47 |
| 688 | Organic Geochemistry | 37 | 1.2K | 36 | 73 |
| 688 | Radio frequency | 34 | 1.2K | 65 | 59 |
| 690 | Medicinal plants | 15 | 1.2K | 475 | 274 |
| 691 | Oxidation-reduction | 19 | 1.2K | 204 | 249 |
| 692 | Plant cell culture | 36 | 1.2K | 45 | 58 |
| 693 | Mathematical Economics | 12 | 1.2K | 109 | 82 |
| 694 | Microprocessors | 44 | 1.2K | 26 | 17 |
| 695 | Scandinavia | 30 | 1.2K | 81 | 75 |
| 696 | Animal breeding | 48 | 1.2K | 109 | 116 |
| 697 | Microbial Genetics | 21 | 1.2K | 52 | 50 |
| 698 | Soil fertility | 22 | 1.2K | 45 | 51 |
| 699 | Lipids | 31 | 1.2K | 249 | 312 |
| 700 | health planning | 34 | 1.2K | 470 | 288 |
| 701 | economic conditions | 11 | 1.2K | 194 | 86 |
| 702 | Japan | 29 | 1.2K | 350 | 163 |
| 703 | Nuclear Engineering | 129 | 1.2K | 114 | 192 |
| 704 | peptides | 31 | 1.2K | 70 | 32 |
| 705 | Sports | 51 | 1.1K | 414 | 477 |
| 706 | Economic Thought | 8 | 1.1K | 137 | 76 |
| 707 | natural gas | 13 | 1.1K | 118 | 48 |
| 708 | Therapeutics | 38 | 1.1K | 367 | 426 |
| 709 | Software Engineering | 41 | 1.1K | 140 | 189 |
| 710 | phytopathogenic bacteria | 19 | 1.1K | 43 | 53 |
| 711 | Luminescence | 55 | 1.1K | 99 | 87 |
| 712 | animals | 45 | 1.1K | 140 | 124 |
| 712 | Liver diseases | 20 | 1.1K | 486 | 517 |
| 714 | Transplantation | 13 | 1.1K | 424 | 305 |
| 715 | Soil dynamics | 39 | 1.1K | 52 | 67 |
| 716 | Urban Policy | 25 | 1.1K | 129 | 105 |
| 717 | Superconductivity | 24 | 1.1K | 83 | 42 |
| 717 | Building | 35 | 1.1K | 89 | 64 |
| 719 | Computational Mathematics | 23 | 1.1K | 3 | 5 |
| 720 | Critical Care | 12 | 1.1K | 602 | 517 |
| 720 | Critical Care Medicine | 12 | 1.1K | 595 | 519 |
| 722 | Yeast | 21 | 1.1K | 62 | 50 |
| 723 | Child psychology | 11 | 1.1K | 697 | 465 |
| 724 | Parasitology | 26 | 1.1K | 693 | 459 |
| 725 | Pharmacokinetics | 25 | 1.1K | 123 | 115 |
| 725 | Artificial Organs | 37 | 1.1K | 77 | 48 |
| 727 | Microbial Metabolism | 16 | 1.1K | 7 | 2 |
| 728 | Ethics | 27 | 1.1K | 177 | 80 |
| 729 | Quantum Computing | 33 | 1.0K | 12 | 20 |
| 730 | Actuarial Science | 51 | 1.0K | 16 | 26 |
| 731 | Transgenic plants | 24 | 1.0K | 53 | 56 |
| 732 | soil conservation | 22 | 1.0K | 122 | 55 |
| 733 | Calculus of Variations | 41 | 1.0K | 36 | 25 |
| 734 | marketing | 22 | 1.0K | 679 | 599 |
| 735 | Chemical industry | 150 | 1.0K | 46 | 144 |
| 736 | Adsorption | 23 | 1.0K | 10 | 6 |
| 737 | Diagnostic microbiology | 6 | 993 | 697 | 445 |
| 738 | Orthopedics | 48 | 989 | 281 | 349 |
| 739 | Risk assessment | 27 | 974 | 39 | 21 |
| 739 | catalytic activity | 23 | 974 | 133 | 138 |
| 741 | RNA | 29 | 973 | 65 | 112 |
| 742 | social science | 5 | 972 | 104 | 35 |
| 743 | Tissue Engineering | 18 | 969 | 46 | 49 |
| 744 | Logistics | 25 | 968 | 62 | 99 |
| 745 | Sedimentary rocks | 16 | 966 | 162 | 89 |
| 746 | insurance | 42 | 960 | 39 | 39 |
| 747 | toxicity testing | 13 | 958 | 148 | 46 |
| 748 | Electromagnetism | 37 | 946 | 170 | 185 |
| 749 | Cell surface receptors | 24 | 944 | 3 | 2 |
| 750 | Medical Ethics | 29 | 932 | 248 | 119 |
| 751 | Child | 14 | 929 | 973 | 532 |
| 752 | Genes | 31 | 928 | 178 | 183 |
| 753 | European Union | 25 | 919 | 11 | 19 |
| 754 | infrared radiation | 55 | 916 | 21 | 19 |
| 755 | Number Theory | 76 | 915 | 26 | 15 |
| 756 | Chemical Oceanography | 13 | 910 | 95 | 93 |
| 757 | Serology | 17 | 906 | 74 | 39 |
| 758 | mutagens | 23 | 905 | 177 | 223 |
| 759 | Raman spectroscopy | 21 | 901 | 144 | 87 |
| 760 | Climate Change Mitigation | 8 | 885 | 4 | 5 |
| 760 | Global warming | 8 | 885 | 25 | 5 |
| 760 | sea level | 8 | 885 | 4 | 5 |
| 763 | Electronic Packaging | 11 | 884 | 69 | 16 |
| 764 | Government policy | 9 | 879 | 53 | 24 |
| 765 | Surgery | 18 | 877 | 563 | 696 |
| 766 | Architecture | 52 | 875 | 37 | 40 |
| 766 | Volcanoes | 31 | 875 | 34 | 54 |
| 766 | environmental exposure | 35 | 875 | 330 | 503 |
| 766 | molecular design | 25 | 875 | 19 | 32 |
| 770 | Parasites | 18 | 861 | 519 | 313 |
| 771 | population geography | 22 | 860 | 48 | 43 |
| 772 | soil pollution | 16 | 858 | 76 | 28 |
| 773 | Bifurcation Theory | 21 | 848 | 18 | 18 |
| 773 | Asia | 37 | 848 | 497 | 409 |
| 775 | Imaging systems | 28 | 844 | 72 | 32 |
| 776 | Kalman Filtering | 53 | 841 | 5 | 6 |
| 777 | Chemotherapy | 5 | 839 | 807 | 317 |
| 778 | Microwave devices | 32 | 835 | 78 | 81 |
| 779 | Exercise | 32 | 834 | 309 | 314 |
| 780 | Parallel Processing | 41 | 833 | 47 | 131 |
| 781 | Physical Geography | 13 | 828 | 135 | 58 |
| 782 | Virtual reality | 36 | 826 | 14 | 39 |
| 783 | Functional Analysis | 52 | 822 | 173 | 242 |
| 784 | radiative transfer | 20 | 817 | 173 | 106 |
| 785 | Histochemistry | 25 | 811 | 238 | 211 |
| 786 | System design | 13 | 808 | 21 | 8 |
| 787 | Graph Theory | 77 | 807 | 32 | 62 |
| 788 | Speech Perception | 16 | 806 | 85 | 84 |
| 788 | auditory perception | 16 | 806 | 104 | 93 |
| 790 | Physical Therapy | 26 | 804 | 320 | 367 |
| 790 | Nondestructive testing | 16 | 804 | 180 | 94 |
| 792 | Plant Pathology | 20 | 802 | 18 | 11 |
| 793 | Computational Complexity | 36 | 800 | 83 | 50 |
| 794 | Developmental Psychology | 18 | 796 | 355 | 356 |
| 795 | Vision | 15 | 795 | 263 | 212 |
| 796 | Rock deformation | 15 | 792 | 22 | 12 |
| 797 | Oxidative stress | 13 | 789 | 255 | 303 |
| 798 | Structural optimization | 23 | 783 | 52 | 77 |
| 798 | Cellulose | 19 | 783 | 110 | 121 |
| 800 | Ecological Engineering | 14 | 773 | 141 | 113 |
| 801 | Health | 35 | 771 | 445 | 546 |
| 802 | ports | 8 | 770 | 98 | 28 |
| 802 | Waterways | 8 | 770 | 58 | 10 |
| 802 | Harbors | 8 | 770 | 61 | 10 |
| 805 | analysis | 35 | 763 | 40 | 92 |
| 806 | Global Health | 15 | 760 | 333 | 135 |
| 806 | eye | 5 | 760 | 126 | 121 |
| 808 | Online social networks | 7 | 757 | 108 | 19 |
| 809 | Game Theory | 37 | 756 | 60 | 103 |
| 809 | Retina | 4 | 756 | 121 | 125 |
| 811 | Mountains | 15 | 754 | 66 | 11 |
| 812 | Nonlinear systems | 18 | 753 | 144 | 93 |
| 813 | Multivariate Analysis | 19 | 749 | 120 | 98 |
| 814 | Entropy | 48 | 748 | 52 | 81 |
| 814 | Toxins | 7 | 748 | 464 | 127 |
| 816 | European integration | 18 | 743 | 52 | 35 |
| 816 | European Economic Community | 18 | 743 | 52 | 35 |
| 818 | Telecommunication Systems | 38 | 739 | 251 | 270 |
| 819 | Archaeology | 27 | 738 | 395 | 306 |
| 820 | Protein engineering | 20 | 733 | 24 | 37 |
| 821 | Microfabrication | 22 | 729 | 46 | 40 |
| 822 | Educational Technology | 14 | 728 | 631 | 380 |
| 823 | Genetic translocation | 15 | 727 | 19 | 21 |
| 823 | Teaching | 28 | 727 | 448 | 416 |
| 823 | plasmids | 15 | 727 | 19 | 21 |
| 826 | Minerals | 25 | 721 | 95 | 102 |
| 827 | Anthropology | 18 | 720 | 572 | 351 |
| 828 | Applied Sciences | 4 | 719 | 12 | 13 |
| 828 | Applied Mechanics | 4 | 719 | 12 | 13 |
| 828 | mutation | 34 | 719 | 54 | 147 |
| 831 | Clinical Pharmacology | 14 | 717 | 525 | 334 |
| 832 | Discrete geometry | 50 | 715 | 14 | 23 |
| 833 | Measurement | 36 | 714 | 207 | 263 |
| 834 | Travel | 18 | 711 | 180 | 118 |
| 835 | Pediatrics | 19 | 710 | 771 | 785 |
| 835 | Plasma chemistry | 24 | 710 | 50 | 51 |
| 837 | Small Business | 13 | 709 | 255 | 377 |
| 838 | plant viruses | 11 | 708 | 77 | 45 |
| 839 | Evolutionary Genetics | 19 | 705 | 80 | 69 |
| 839 | Molecular Epidemiology | 19 | 705 | 80 | 69 |
| 839 | Nanobiotechnology | 13 | 705 | 93 | 127 |
| 842 | Elections | 10 | 701 | 161 | 64 |
| 843 | Nanochemistry | 27 | 694 | 186 | 184 |
| 844 | Inflammation | 9 | 690 | 534 | 370 |
| 845 | Political Participation | 9 | 687 | 149 | 62 |
| 846 | Hypertension | 6 | 686 | 900 | 712 |
| 847 | Plasma polymerization | 22 | 685 | 30 | 39 |
| 847 | Forest genetics | 14 | 685 | 54 | 21 |
| 849 | Synapses | 5 | 684 | 163 | 55 |
| 850 | arthritis | 20 | 683 | 384 | 484 |
| 851 | microwave communication systems | 23 | 675 | 72 | 76 |
| 852 | health services accessibility | 9 | 673 | 455 | 205 |
| 853 | Metallography | 11 | 670 | 351 | 166 |
| 854 | Structuralism | 16 | 669 | 33 | 56 |
| 855 | Neuroimaging | 25 | 664 | 38 | 42 |
| 856 | Nanophotonics | 12 | 662 | 94 | 69 |
| 857 | election law | 8 | 661 | 130 | 51 |
| 857 | Voting | 8 | 661 | 123 | 49 |
| 859 | carcinogens | 19 | 657 | 238 | 306 |
| 860 | Computational Fluid Dynamics | 38 | 655 | 53 | 131 |
| 861 | Sonochemistry | 9 | 651 | 261 | 198 |
| 862 | personality | 17 | 645 | 595 | 635 |
| 863 | Immunopathology | 20 | 644 | 415 | 428 |
| 863 | Mesoporous materials | 11 | 644 | 21 | 13 |
| 863 | Speech | 11 | 644 | 429 | 306 |
| 866 | Quality Control | 20 | 642 | 451 | 437 |
| 867 | occupational diseases | 9 | 641 | 365 | 217 |
| 868 | Flexible manufacturing systems | 13 | 640 | 86 | 47 |
| 869 | disarmament | 18 | 636 | 24 | 24 |
| 870 | Production Planning | 16 | 634 | 40 | 58 |
| 870 | Production Control | 16 | 634 | 39 | 58 |
| 872 | Sites | 15 | 632 | 185 | 183 |
| 873 | Humanities | 33 | 627 | 228 | 194 |
| 873 | Origin of life | 11 | 627 | 23 | 12 |
| 873 | Distributed Databases | 24 | 627 | 7 | 14 |
| 876 | Turbulence | 36 | 626 | 12 | 25 |
| 877 | phase diagrams | 15 | 625 | 40 | 21 |
| 878 | Harmonic Analysis | 21 | 621 | 18 | 36 |
| 879 | Random graphs | 53 | 618 | 7 | 24 |
| 880 | polar regions | 25 | 610 | 118 | 132 |
| 881 | Hormones | 18 | 608 | 437 | 455 |
| 882 | Petroleum | 7 | 607 | 141 | 17 |
| 883 | Radiopharmaceuticals | 20 | 603 | 46 | 7 |
| 884 | Culture techniques | 27 | 601 | 26 | 42 |
| 885 | cell interaction | 16 | 599 | 331 | 368 |
| 886 | Microbial Biotechnology | 16 | 596 | 216 | 199 |
| 886 | Ventilation | 25 | 596 | 79 | 116 |
| 888 | Spine | 24 | 595 | 166 | 257 |
| 889 | Bacteriophages | 10 | 591 | 5 | 8 |
| 890 | Urology | 12 | 585 | 691 | 545 |
| 890 | pain | 28 | 585 | 350 | 529 |
| 892 | Health Risk Assessment | 15 | 583 | 63 | 25 |
| 893 | Documentation | 6 | 581 | 142 | 53 |
| 894 | Carcinogenesis | 17 | 579 | 275 | 342 |
| 894 | Phylogeny | 18 | 579 | 245 | 355 |
| 896 | Comparative Physiology | 23 | 576 | 202 | 262 |
| 897 | Thermodynamics | 44 | 573 | 135 | 183 |
| 897 | Synaptic Transmission | 16 | 573 | 130 | 118 |
| 897 | medical education | 16 | 573 | 646 | 498 |
| 900 | cloning | 12 | 572 | 227 | 304 |
| 901 | Tourism | 9 | 570 | 909 | 720 |
| 901 | Real-time Data Processing | 17 | 570 | 12 | 18 |
| 903 | sedimentary basins | 13 | 562 | 42 | 49 |
| 903 | monoclonal antibodies | 19 | 562 | 20 | 22 |
| 903 | international trade | 22 | 562 | 92 | 169 |
| 906 | technology transfer | 8 | 559 | 64 | 54 |
| 906 | disease outbreaks | 18 | 559 | 129 | 175 |
| 906 | Epidemics | 18 | 559 | 123 | 173 |
| 909 | Nonlinear functional analysis | 28 | 558 | 222 | 239 |
| 909 | baking | 7 | 558 | 88 | 44 |
| 911 | data collection | 6 | 557 | 88 | 52 |
| 912 | construction | 9 | 553 | 73 | 41 |
| 913 | electroplating | 3 | 552 | 55 | 1 |
| 913 | surface preparation | 3 | 552 | 46 | 1 |
| 915 | Human Geography | 40 | 546 | 212 | 324 |
| 916 | Dendrochronology | 3 | 545 | 25 | 2 |
| 916 | magnetic resonance | 21 | 545 | 72 | 48 |
| 918 | Computer Engineering | 27 | 544 | 100 | 123 |
| 918 | Computer Architecture | 46 | 544 | 29 | 62 |
| 920 | Radiology | 18 | 543 | 464 | 301 |
| 921 | Human evolution | 7 | 541 | 245 | 174 |
| 922 | environmental remediation | 14 | 536 | 34 | 27 |
| 923 | food contamination | 14 | 535 | 285 | 170 |
| 924 | Democracy | 14 | 533 | 58 | 23 |
| 924 | Liposomes | 19 | 533 | 112 | 181 |
| 926 | Neuropharmacology | 14 | 532 | 197 | 179 |
| 926 | biomimicry | 12 | 532 | 35 | 34 |
| 928 | Invertebrates | 18 | 530 | 141 | 126 |
| 929 | food handling | 14 | 523 | 260 | 297 |
| 929 | Peptide | 13 | 523 | 50 | 26 |
| 931 | Criminology | 14 | 517 | 425 | 293 |
| 931 | foreign exchange | 15 | 517 | 53 | 91 |
| 933 | taxation | 11 | 513 | 33 | 25 |
| 933 | Ecohydrology | 22 | 513 | 21 | 46 |
| 935 | Aquatic ecology | 20 | 509 | 227 | 251 |
| 936 | environmental control | 12 | 508 | 35 | 35 |
| 937 | Intelligent Control Systems | 28 | 506 | 147 | 130 |
| 938 | Microfluidics | 18 | 503 | 22 | 39 |
| 939 | Demography | 10 | 492 | 286 | 221 |
| 939 | strategy | 35 | 492 | 20 | 11 |
| 941 | Child Development | 9 | 490 | 1,024 | 782 |
| 942 | Biometrics | 30 | 489 | 258 | 349 |
| 943 | Matroids | 42 | 488 | 16 | 45 |
| 944 | Phytochemistry | 11 | 487 | 41 | 27 |
| 944 | Phytoremediation | 11 | 487 | 41 | 27 |
| 944 | Bioreactors | 11 | 487 | 41 | 27 |
| 947 | Research Design | 20 | 486 | 324 | 445 |
| 947 | forestry | 19 | 486 | 46 | 58 |
| 949 | ecological risk assessment | 12 | 484 | 35 | 23 |
| 950 | Investment analysis | 7 | 483 | 550 | 216 |
| 951 | pigments | 12 | 479 | 330 | 238 |
| 952 | Organizational change | 19 | 475 | 116 | 201 |
| 953 | Obstetrics | 9 | 474 | 1,166 | 784 |
| 954 | Algebra | 50 | 473 | 264 | 275 |
| 955 | Democratization | 9 | 469 | 22 | 17 |
| 956 | Neurosurgery | 3 | 468 | 818 | 375 |
| 957 | weather forecasting | 13 | 467 | 59 | 65 |
| 957 | Drug discovery | 8 | 467 | 70 | 41 |
| 959 | Ecological Genetics | 24 | 462 | 79 | 99 |
| 959 | biofuels | 6 | 462 | 148 | 147 |
| 959 | human development | 14 | 462 | 302 | 340 |
| 962 | Agricultural Economics | 14 | 460 | 24 | 22 |
| 963 | Antioxidants | 8 | 459 | 392 | 427 |
| 964 | Plant Morphology | 17 | 457 | 124 | 114 |
| 965 | Anxiety Disorders | 2 | 455 | 591 | 297 |
| 965 | Celestial Mechanics | 29 | 455 | 28 | 49 |
| 967 | Freshwater invertebrates | 14 | 454 | 49 | 79 |
| 968 | Metallic Glasses | 14 | 452 | 148 | 137 |
| 969 | Algorithms | 27 | 451 | 71 | 138 |
| 970 | individual differences | 5 | 449 | 198 | 103 |
| 971 | Paleobotany | 9 | 447 | 53 | 38 |
| 971 | Vegetation dynamics | 9 | 447 | 50 | 38 |
| 973 | Mood Disorders | 1 | 446 | 22 | 6 |
| 974 | Business Ethics | 10 | 442 | 483 | 665 |
| 975 | preventive medicine | 6 | 437 | 750 | 517 |
| 975 | Isotopes | 18 | 437 | 2 | 7 |
| 977 | Consciousness | 9 | 436 | 223 | 155 |
| 978 | Microeconomics | 16 | 433 | 83 | 108 |
| 979 | Physical fitness | 7 | 432 | 674 | 444 |
| 980 | bees | 9 | 429 | 175 | 119 |
| 981 | Developed countries | 4 | 428 | 141 | 76 |
| 982 | Differential Equations | 26 | 427 | 252 | 325 |
| 982 | Lipid bilayers | 15 | 427 | 125 | 198 |
| 984 | Alzheimer's disease | 25 | 426 | 420 | 438 |
| 984 | Uncertainty | 10 | 426 | 44 | 62 |
| 986 | landscapes | 15 | 420 | 20 | 26 |
| 987 | Social Choice Theory | 17 | 419 | 41 | 35 |
| 987 | exobiology | 13 | 419 | 75 | 141 |
| 989 | Transportation Engineering | 12 | 418 | 129 | 117 |
| 989 | water resources | 13 | 418 | 71 | 48 |
| 991 | Rural Development | 10 | 417 | 178 | 174 |
| 991 | public works | 24 | 417 | 9 | 26 |
| 993 | Hippocampus | 9 | 416 | 123 | 152 |
| 993 | musculoskeletal system | 15 | 416 | 15 | 29 |
| 995 | Muscles | 11 | 414 | 357 | 402 |
| 996 | air quality management | 18 | 413 | 65 | 152 |
| 997 | Petroleum Engineering | 16 | 412 | 236 | 242 |
| 998 | Quantum Chemistry | 6 | 411 | 67 | 40 |
| 998 | histological techniques | 10 | 411 | 326 | 336 |
| 1000 | Substance Abuse | 12 | 409 | 641 | 546 |