5.9K(top 0.1%)
papers
50.7K(top 1%)
citations
73(top 1%)
h-index
116(top 1%)
g-index
7.3K
all documents
57.7K
doc citations
6.7K
citing journals
Top Disciplines (by citations)
| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|---|---|---|---|---|
| 1 | Physics | 192 | 3,198 | 1.6K | 3.4K |
| 2 | Biochemistry | 131 | 2,396 | 1.9K | 2.5K |
| 3 | Marine Biology | 265 | 2,027 | 88 | 452 |
| 4 | Chemistry | 142 | 2,021 | 2.1K | 3.4K |
| 5 | Biology | 83 | 1,913 | 2.8K | 4.4K |
| 6 | Nuclear Physics | 80 | 1,790 | 1.3K | 1.3K |
| 7 | Molecular Biology | 86 | 1,664 | 2.2K | 3.3K |
| 8 | Solid State Physics | 84 | 1,370 | 978 | 1.2K |
| 9 | Earth Sciences | 239 | 1,327 | 97 | 666 |
| 10 | Nanotechnology | 47 | 1,323 | 1.7K | 1.9K |
| 11 | Condensed Matter | 72 | 1,289 | 1.0K | 1.2K |
| 12 | Science | 35 | 1,206 | 4.9K | 5.7K |
| 13 | Genetics | 49 | 1,120 | 1.1K | 1.9K |
| 14 | Biotechnology | 59 | 1,046 | 1.7K | 2.7K |
| 15 | Quantum Gravity | 52 | 1,030 | 755 | 783 |
| 16 | Microbiology | 64 | 977 | 2.0K | 3.3K |
| 17 | Biophysics | 59 | 930 | 1.7K | 2.2K |
| 18 | Spectrum analysis | 48 | 731 | 1.0K | 1.5K |
| 19 | Materials | 52 | 704 | 1.8K | 2.7K |
| 19 | nanoscience | 19 | 704 | 1.5K | 1.5K |
| 21 | Research | 29 | 654 | 4.5K | 4.9K |
| 22 | Natural history | 39 | 605 | 1.3K | 4.7K |
| 23 | Botany | 15 | 585 | 2.2K | 2.0K |
| 24 | Medicine | 47 | 572 | 4.2K | 6.9K |
| 25 | Geophysics | 32 | 552 | 1.4K | 1.7K |
| 26 | Materials Science | 26 | 532 | 2.2K | 2.5K |
| 27 | Toxicology | 17 | 514 | 2.5K | 2.5K |
| 28 | Geology | 43 | 510 | 885 | 1.2K |
| 29 | Bioengineering | 21 | 506 | 1.9K | 2.8K |
| 30 | Optics | 41 | 489 | 1.6K | 1.7K |
| 31 | Environmental Health | 22 | 464 | 2.4K | 3.3K |
| 32 | Zoology | 41 | 412 | 714 | 1.0K |
| 33 | Biocompatible Materials | 19 | 406 | 1.9K | 2.6K |
| 34 | Ecology | 31 | 379 | 2.4K | 4.6K |
| 35 | Combustion | 34 | 378 | 162 | 277 |
| 36 | Pollution | 33 | 377 | 1.9K | 3.7K |
| 37 | Plant physiology | 19 | 345 | 889 | 1.4K |
| 38 | natural products | 37 | 332 | 385 | 854 |
| 39 | Oceanography | 26 | 330 | 596 | 946 |
| 40 | Astrophysics | 11 | 315 | 2.1K | 1.9K |
| 41 | Nanostructured Materials | 12 | 302 | 2.1K | 2.2K |
| 42 | Mathematics | 70 | 296 | 1.6K | 2.3K |
| 43 | Mathematical Physics | 32 | 289 | 915 | 1.2K |
| 44 | Optical materials | 16 | 281 | 1.2K | 1.8K |
| 45 | Biochemical Engineering | 11 | 275 | 1.5K | 2.6K |
| 46 | Radiochemistry | 28 | 274 | 285 | 378 |
| 47 | Water pollution | 13 | 268 | 1.3K | 1.8K |
| 48 | Metals | 39 | 255 | 429 | 857 |
| 49 | Physiology | 24 | 254 | 2.0K | 3.4K |
| 50 | Numerical Analysis | 29 | 252 | 643 | 935 |
| 51 | Pharmacology | 9 | 245 | 4.1K | 4.1K |
| 52 | Surface Chemistry | 50 | 244 | 805 | 2.3K |
| 53 | Organic Chemistry | 21 | 240 | 1.5K | 2.1K |
| 54 | Genomics | 11 | 238 | 2.3K | 2.7K |
| 55 | Cytology | 13 | 237 | 3.0K | 4.1K |
| 56 | Biomedical Engineering | 19 | 236 | 2.4K | 3.6K |
| 57 | Pharmacognosy | 13 | 234 | 838 | 1.3K |
| 58 | Nanostructures | 4 | 231 | 2.1K | 1.6K |
| 58 | Protective coatings | 38 | 231 | 7 | 15 |
| 60 | Chemical Engineering | 19 | 229 | 2.0K | 2.9K |
| 61 | Astronomy | 19 | 222 | 1.5K | 1.9K |
| 62 | Bioorganic chemistry | 15 | 220 | 1.4K | 2.0K |
| 63 | Soviet Union | 42 | 212 | 69 | 132 |
| 64 | Cell Biology | 11 | 205 | 3.1K | 4.4K |
| 64 | miniaturization | 10 | 205 | 1.3K | 1.9K |
| 66 | Catalysis | 9 | 203 | 2.4K | 2.6K |
| 67 | biological factors | 14 | 196 | 1.0K | 1.5K |
| 68 | Microelectronics | 9 | 194 | 1.2K | 1.6K |
| 68 | environmental pollution | 10 | 194 | 2.8K | 3.6K |
| 70 | Marine Pollution | 10 | 192 | 493 | 830 |
| 71 | Environment | 6 | 190 | 4.4K | 5.5K |
| 72 | Physical Chemistry | 9 | 189 | 1.8K | 2.0K |
| 73 | animals | 18 | 187 | 540 | 767 |
| 74 | Parasitology | 25 | 181 | 901 | 1.8K |
| 75 | Building Materials | 8 | 175 | 544 | 833 |
| 76 | Entrepreneurship | 2 | 174 | 1.2K | 742 |
| 77 | Analytical Chemistry | 11 | 172 | 3.1K | 3.7K |
| 78 | Technology | 17 | 171 | 1.9K | 2.9K |
| 79 | Immunology | 9 | 168 | 3.1K | 4.0K |
| 80 | Nanochemistry | 5 | 161 | 1.0K | 599 |
| 80 | Microorganisms | 9 | 161 | 809 | 1.5K |
| 82 | Biodiversity | 13 | 159 | 1.3K | 2.1K |
| 82 | venom | 7 | 159 | 284 | 373 |
| 82 | Toxins | 7 | 159 | 360 | 446 |
| 85 | Energy Storage | 2 | 158 | 1.8K | 1.0K |
| 86 | Energy Conversion | 1 | 157 | 2.1K | 1.4K |
| 86 | Energy Harvesting | 1 | 157 | 832 | 597 |
| 88 | Developmental Biology | 20 | 150 | 933 | 2.3K |
| 89 | Molecular Genetics | 8 | 149 | 1.4K | 2.1K |
| 90 | Genes | 4 | 148 | 1.3K | 1.0K |
| 91 | Photonics | 6 | 145 | 1.6K | 1.8K |
| 91 | Atmospheric Physics | 13 | 145 | 828 | 1.5K |
| 93 | Plant tissue culture | 5 | 141 | 649 | 650 |
| 93 | Plant cell culture | 5 | 141 | 574 | 644 |
| 95 | Neurology | 11 | 137 | 4.0K | 5.7K |
| 96 | biological evolution | 10 | 136 | 1.4K | 2.4K |
| 97 | Marine biodiversity | 8 | 124 | 157 | 114 |
| 98 | Systems Engineering | 15 | 123 | 936 | 1.5K |
| 99 | Parasitic Diseases | 16 | 122 | 1.0K | 2.2K |
| 100 | Medical genetics | 5 | 121 | 3.1K | 3.8K |
| 101 | Social Change | 1 | 120 | 1.3K | 699 |
| 102 | Mitochondrial DNA | 15 | 115 | 37 | 33 |
| 102 | Statistical physics | 15 | 115 | 2.1K | 2.9K |
| 104 | radiative transfer | 7 | 114 | 117 | 160 |
| 104 | Radiation | 8 | 114 | 1.3K | 1.5K |
| 104 | Ore deposits | 4 | 114 | 348 | 343 |
| 107 | Differential Equations | 13 | 113 | 196 | 281 |
| 108 | Invertebrates | 13 | 112 | 112 | 360 |
| 109 | Nuclear Chemistry | 9 | 110 | 580 | 625 |
| 109 | environmental issues | 15 | 110 | 98 | 445 |
| 111 | Molecular Spectroscopy | 10 | 109 | 729 | 1.2K |
| 112 | Psychology | 4 | 108 | 5.7K | 5.1K |
| 112 | Medical Laboratory Science | 4 | 108 | 2.4K | 2.7K |
| 112 | Industrial Microbiology | 4 | 108 | 2.1K | 2.5K |
| 112 | Entomology | 15 | 108 | 1.3K | 1.9K |
| 116 | Cancer | 2 | 106 | 5.5K | 4.5K |
| 117 | genome | 1 | 105 | 3.5K | 2.6K |
| 118 | Nonlinear Dynamics | 14 | 104 | 1.3K | 2.1K |
| 119 | Fisheries | 20 | 101 | 508 | 1.3K |
| 120 | Atmospheric Chemistry | 1 | 100 | 1.6K | 1.3K |
| 120 | Diffusion of innovations | 1 | 100 | 332 | 89 |
| 122 | Public Health | 20 | 99 | 3.0K | 6.5K |
| 122 | Fluid Mechanics | 13 | 99 | 1.1K | 1.7K |
| 124 | Solid State Chemistry | 2 | 98 | 2.4K | 1.6K |
| 124 | Geobiology | 1 | 98 | 1.0K | 513 |
| 124 | investigative techniques | 1 | 98 | 322 | 144 |
| 127 | Hydrology | 28 | 97 | 754 | 2.3K |
| 128 | Information Technology | 2 | 96 | 3.6K | 2.0K |
| 129 | Economics | 7 | 95 | 3.3K | 3.1K |
| 129 | Automation | 19 | 95 | 799 | 1.9K |
| 129 | Green Chemistry | 2 | 95 | 2.4K | 2.3K |
| 129 | Sustainable Engineering | 2 | 95 | 2.3K | 1.9K |
| 133 | gene mapping | 5 | 94 | 2.0K | 2.9K |
| 133 | Phylogeny | 4 | 94 | 843 | 985 |
| 135 | Composite Materials | 3 | 93 | 2.2K | 1.9K |
| 135 | mathematical analysis | 8 | 93 | 1.5K | 1.2K |
| 137 | Biomass Energy | 3 | 91 | 2.4K | 2.6K |
| 138 | Obesity | 3 | 90 | 2.6K | 2.9K |
| 138 | Solar System | 7 | 90 | 452 | 620 |
| 140 | Marine Biotechnology | 3 | 89 | 270 | 333 |
| 141 | Histology | 6 | 88 | 1.8K | 2.5K |
| 142 | Oxidative stress | 4 | 87 | 1.2K | 1.7K |
| 143 | Environmental Engineering | 5 | 86 | 3.7K | 4.6K |
| 143 | Cytogenetics | 10 | 86 | 1.1K | 2.6K |
| 145 | Environmental monitoring | 9 | 85 | 2.6K | 4.6K |
| 145 | Plant hormones | 3 | 85 | 356 | 412 |
| 147 | Climate change | 2 | 84 | 1.6K | 2.0K |
| 147 | Biodiversity conservation | 2 | 84 | 2.5K | 2.5K |
| 147 | Eutrophication | 2 | 84 | 1.5K | 2.0K |
| 150 | violence | 4 | 83 | 897 | 975 |
| 151 | Cellular senescence | 3 | 82 | 964 | 1.2K |
| 151 | Nanoparticles | 5 | 82 | 1.8K | 2.3K |
| 153 | Engineering Mathematics | 5 | 81 | 2.4K | 1.9K |
| 153 | Insects | 4 | 81 | 1.5K | 1.4K |
| 155 | Virology | 4 | 80 | 3.6K | 4.7K |
| 156 | Molecular evolution | 3 | 79 | 1.8K | 2.1K |
| 156 | biological agents | 18 | 79 | 130 | 162 |
| 158 | Archaeology | 17 | 78 | 545 | 1.0K |
| 158 | Chromosome mapping | 4 | 78 | 2.0K | 2.8K |
| 158 | lasers | 7 | 78 | 1.6K | 1.8K |
| 161 | Ceramic materials | 4 | 77 | 954 | 921 |
| 161 | Agriculture | 7 | 77 | 1.7K | 2.4K |
| 163 | Regional Planning | 3 | 76 | 1.7K | 1.5K |
| 164 | Embryology | 8 | 73 | 1.3K | 2.5K |
| 164 | Plants | 3 | 73 | 2.7K | 2.7K |
| 166 | Serology | 4 | 71 | 525 | 684 |
| 166 | Bacteriology | 4 | 71 | 1.8K | 2.6K |
| 168 | Quantum electronics | 9 | 69 | 1.1K | 1.6K |
| 168 | Nanophotonics | 2 | 69 | 492 | 440 |
| 168 | Spectroscopy | 7 | 69 | 105 | 58 |
| 168 | Colloids | 5 | 69 | 3.0K | 4.1K |
| 168 | Reproduction | 9 | 69 | 1.7K | 3.0K |
| 173 | Histochemistry | 5 | 67 | 1.0K | 1.4K |
| 173 | Planets | 3 | 67 | 1.9K | 2.4K |
| 175 | Sound | 11 | 66 | 538 | 1.0K |
| 176 | Soil Science | 10 | 65 | 899 | 1.9K |
| 176 | Food | 7 | 65 | 2.5K | 4.0K |
| 178 | Lipids | 2 | 64 | 2.1K | 2.1K |
| 179 | Social Sciences | 19 | 62 | 1.5K | 3.2K |
| 179 | Geochemistry | 4 | 62 | 1.5K | 1.7K |
| 181 | Engineering | 15 | 60 | 2.1K | 4.4K |
| 181 | Environmental Toxicology | 7 | 60 | 1.9K | 3.8K |
| 181 | Information Science | 1 | 60 | 3.6K | 2.1K |
| 184 | Sociology | 4 | 58 | 3.0K | 3.3K |
| 184 | Metallurgy | 7 | 58 | 1.7K | 2.2K |
| 184 | Parasites | 9 | 58 | 1.0K | 2.0K |
| 187 | Hydraulic Engineering | 5 | 57 | 701 | 910 |
| 187 | Natural resources | 1 | 57 | 1.3K | 905 |
| 187 | Hydrodynamics | 1 | 57 | 770 | 485 |
| 187 | Algae | 7 | 57 | 601 | 1.1K |
| 191 | Metallography | 2 | 56 | 554 | 435 |
| 191 | Algal blooms | 1 | 56 | 420 | 392 |
| 191 | Cyanobacteria | 1 | 56 | 420 | 392 |
| 191 | antibiotics | 2 | 56 | 643 | 601 |
| 191 | microalgae | 1 | 56 | 420 | 392 |
| 196 | Inflammation | 2 | 54 | 2.1K | 2.3K |
| 196 | China | 7 | 54 | 2.1K | 3.2K |
| 196 | atmospheric models | 1 | 54 | 1.2K | 1.0K |
| 196 | Heterocyclic compounds | 40 | 54 | 140 | 936 |
| 200 | Nutrition | 4 | 53 | 5.2K | 6.5K |
| 200 | Shock Waves | 9 | 53 | 88 | 213 |
| 202 | coal | 2 | 52 | 940 | 1.2K |
| 202 | sex crimes | 3 | 52 | 680 | 806 |
| 204 | Water | 1 | 51 | 3.5K | 3.1K |
| 204 | Evolution | 9 | 51 | 1.4K | 3.1K |
| 206 | Systems Analysis | 2 | 50 | 1.6K | 1.4K |
| 206 | Organizational learning | 1 | 50 | 1.1K | 380 |
| 206 | Knowledge management | 1 | 50 | 1.0K | 228 |
| 206 | System analysis | 2 | 50 | 3.3K | 2.8K |
| 206 | actuators | 3 | 50 | 1.5K | 2.0K |
| 206 | transducers | 3 | 50 | 1.5K | 2.0K |
| 212 | environmental protection | 5 | 49 | 3.1K | 5.1K |
| 212 | Atomic spectroscopy | 3 | 49 | 1.1K | 1.1K |
| 214 | Population Genetics | 1 | 48 | 2.4K | 2.3K |
| 214 | Molecular ecology | 1 | 48 | 2.2K | 2.3K |
| 214 | aromatic plants | 3 | 48 | 252 | 149 |
| 217 | Genetic engineering | 4 | 47 | 2.3K | 3.6K |
| 217 | Heterocyclic chemistry | 39 | 47 | 61 | 423 |
| 217 | Molecular structure | 2 | 47 | 3.1K | 2.9K |
| 220 | Geography | 5 | 46 | 2.0K | 2.8K |
| 220 | Anatomy | 6 | 46 | 1.8K | 3.1K |
| 220 | Public Policy | 1 | 46 | 3.2K | 2.5K |
| 220 | Morphology | 6 | 46 | 675 | 1.1K |
| 224 | Computational Biology | 1 | 45 | 6.0K | 4.6K |
| 224 | Nanobiotechnology | 3 | 45 | 514 | 964 |
| 224 | Ocean-atmosphere interaction | 12 | 45 | 31 | 57 |
| 224 | global environmental change | 1 | 45 | 1.6K | 1.4K |
| 228 | food technology | 4 | 44 | 2.3K | 3.3K |
| 229 | Meteorology | 14 | 43 | 1.2K | 3.6K |
| 230 | Industry | 1 | 42 | 520 | 670 |
| 230 | biological invasions | 9 | 42 | 315 | 1.1K |
| 232 | sanitation | 17 | 41 | 797 | 3.5K |
| 232 | hygiene | 17 | 41 | 120 | 995 |
| 234 | Educational Technology | 2 | 40 | 2.2K | 1.9K |
| 234 | Control Theory | 8 | 40 | 1.2K | 2.0K |
| 236 | Agricultural Ecology | 1 | 39 | 2.4K | 2.4K |
| 236 | Crystallography | 3 | 39 | 2.1K | 1.8K |
| 238 | Marine Ecology | 4 | 38 | 661 | 991 |
| 238 | Wireless Communication Systems | 1 | 38 | 3.7K | 2.7K |
| 238 | sustainability | 1 | 38 | 1.7K | 1.5K |
| 241 | Diagnostic Imaging | 4 | 37 | 2.4K | 3.1K |
| 241 | Electrochemistry | 7 | 37 | 2.6K | 4.0K |
| 241 | mass transfer | 7 | 37 | 637 | 1.5K |
| 241 | Glass | 4 | 37 | 1.3K | 1.9K |
| 245 | Chemical kinetics | 5 | 36 | 666 | 881 |
| 245 | Developmental Immunology | 2 | 36 | 1.2K | 1.5K |
| 245 | polar regions | 5 | 36 | 601 | 1.1K |
| 248 | Ceramics | 6 | 35 | 1.4K | 2.2K |
| 248 | Plant Ecology | 1 | 35 | 2.8K | 2.7K |
| 248 | United States | 6 | 35 | 5.3K | 7.9K |
| 248 | health planning | 3 | 35 | 1.9K | 2.5K |
| 248 | plant communities | 1 | 35 | 2.0K | 2.1K |
| 253 | Petrology | 4 | 34 | 776 | 1.2K |
| 253 | Mental Disorders | 3 | 34 | 4.4K | 5.7K |
| 253 | Environmental Geochemistry | 4 | 34 | 459 | 975 |
| 253 | Growth | 1 | 34 | 2.3K | 2.6K |
| 253 | Minerals | 4 | 34 | 678 | 1.3K |
| 258 | Proteomics | 2 | 33 | 1.7K | 2.4K |
| 258 | Biosensors | 1 | 33 | 2.1K | 2.6K |
| 258 | Mineralogy | 2 | 33 | 1.9K | 2.1K |
| 258 | Crystal growth | 2 | 33 | 1.5K | 1.8K |
| 258 | cytokines | 2 | 33 | 1.9K | 2.5K |
| 263 | Quantum Chemistry | 3 | 32 | 1.1K | 1.2K |
| 263 | food contamination | 2 | 32 | 1.6K | 1.7K |
| 263 | cell physiology | 1 | 32 | 3.0K | 3.3K |
| 263 | United Kingdom | 1 | 32 | 3.3K | 3.0K |
| 267 | philology | 79 | 31 | 32 | 149 |
| 267 | Aggression | 1 | 31 | 847 | 815 |
| 269 | Aerodynamics | 6 | 30 | 137 | 152 |
| 269 | soil microbiology | 1 | 30 | 2.5K | 2.9K |
| 269 | Mass Spectrometry | 1 | 30 | 2.5K | 2.3K |
| 269 | human behavior | 1 | 30 | 4.2K | 4.4K |
| 269 | Plant diseases | 1 | 30 | 3.3K | 2.8K |
| 269 | drug development | 1 | 30 | 2.4K | 2.8K |
| 269 | drug therapy | 1 | 30 | 4.6K | 4.3K |
| 269 | Mental illness | 1 | 30 | 4.3K | 4.1K |
| 277 | Data Mining | 1 | 29 | 3.4K | 3.0K |
| 277 | Polymers | 5 | 29 | 4.4K | 6.2K |
| 277 | Photochemistry | 2 | 29 | 2.2K | 2.7K |
| 277 | Photobiology | 2 | 29 | 1.5K | 1.9K |
| 277 | data collection | 1 | 29 | 2.5K | 2.2K |
| 277 | crops | 1 | 29 | 345 | 223 |
| 277 | polymerization | 5 | 29 | 3.7K | 5.1K |
| 277 | food industry | 1 | 29 | 778 | 591 |
| 285 | Human physiology | 11 | 28 | 34 | 155 |
| 285 | Nervous system | 2 | 28 | 3.6K | 4.7K |
| 285 | Chemical industry | 7 | 28 | 1.0K | 2.0K |
| 288 | Environmental Chemistry | 3 | 27 | 2.8K | 4.2K |
| 288 | Asia | 12 | 27 | 1.3K | 3.6K |
| 290 | Fiber Optics | 3 | 26 | 961 | 1.4K |
| 291 | Cosmology | 3 | 25 | 1.4K | 1.4K |
| 291 | Particle Physics | 3 | 25 | 755 | 853 |
| 291 | Cosmochemistry | 1 | 25 | 932 | 884 |
| 291 | Environmental pollutants | 4 | 25 | 2.3K | 4.2K |
| 295 | Robotics | 1 | 24 | 2.9K | 2.6K |
| 295 | Geodesy | 2 | 24 | 890 | 997 |
| 295 | Russia | 20 | 24 | 210 | 218 |
| 298 | Microscopy | 2 | 23 | 3.0K | 2.8K |
| 299 | Criminology | 1 | 22 | 1.7K | 1.5K |
| 299 | Clinical Immunology | 2 | 22 | 1.9K | 2.6K |
| 299 | Neurophysiology | 5 | 22 | 2.7K | 5.0K |
| 299 | alcoholism | 2 | 22 | 2.2K | 3.1K |
| 299 | Trace elements | 1 | 22 | 709 | 922 |
| 304 | Maritime Law | 2 | 21 | 126 | 123 |
| 304 | Marine Conservation | 2 | 21 | 100 | 105 |
| 304 | Law of the Sea | 2 | 21 | 100 | 105 |
| 304 | Chromosomes | 3 | 21 | 1.0K | 1.9K |
| 304 | Middle East | 4 | 21 | 909 | 932 |
| 304 | Sun | 1 | 21 | 741 | 720 |
| 310 | Pathology | 1 | 20 | 4.6K | 5.0K |
| 310 | Medical Microbiology | 1 | 20 | 4.5K | 5.3K |
| 310 | Geomagnetism | 1 | 20 | 1.3K | 1.3K |
| 310 | soil conservation | 2 | 20 | 1.2K | 1.8K |
| 310 | Quantum Optics | 2 | 20 | 1.2K | 1.4K |
| 310 | Health | 1 | 20 | 5.0K | 5.0K |
| 310 | soil pollution | 2 | 20 | 885 | 1.3K |
| 310 | men | 1 | 20 | 705 | 692 |
| 310 | Laser Spectroscopy | 2 | 20 | 1.2K | 1.4K |
| 310 | Growth factors | 1 | 20 | 626 | 956 |
| 310 | Cytokine | 1 | 20 | 922 | 1.2K |
| 321 | Energy Policy | 2 | 19 | 2.3K | 3.6K |
| 321 | Japan | 5 | 19 | 2.0K | 3.3K |
| 321 | health services | 1 | 19 | 2.4K | 2.6K |
| 321 | Culture techniques | 1 | 19 | 551 | 568 |
| 321 | biomedicine | 3 | 19 | 1.2K | 2.3K |
| 321 | Mollusks | 1 | 19 | 542 | 396 |
| 327 | Biogeography | 1 | 18 | 1.8K | 2.3K |
| 327 | Environmental Microbiology | 1 | 18 | 2.8K | 3.5K |
| 327 | energy conservation | 2 | 18 | 2.3K | 3.5K |
| 327 | Immunochemistry | 1 | 18 | 1.9K | 2.0K |
| 327 | Plant breeding | 1 | 18 | 1.9K | 2.1K |
| 327 | Ethnology | 15 | 18 | 592 | 2.3K |
| 327 | ecosystem | 1 | 18 | 2.5K | 3.1K |
| 327 | immunoassay | 1 | 18 | 564 | 427 |
| 327 | eugenics | 1 | 18 | 1.7K | 1.9K |
| 327 | Breeding | 1 | 18 | 2.4K | 2.6K |
| 337 | Sustainable Development | 1 | 17 | 3.7K | 3.8K |
| 337 | Agricultural Chemistry | 1 | 17 | 4.4K | 4.7K |
| 337 | Environmental Policy | 1 | 17 | 5.3K | 6.2K |
| 337 | Development Economics | 1 | 17 | 1.1K | 1.1K |
| 337 | Economic Development | 1 | 17 | 2.9K | 2.9K |
| 337 | Environmental Economics | 1 | 17 | 886 | 909 |
| 337 | Biochemical Genetics | 5 | 17 | 310 | 836 |
| 337 | Operations Research | 1 | 17 | 3.4K | 3.2K |
| 337 | Molecular cloning | 2 | 17 | 1.9K | 2.9K |
| 337 | Genetic recombination | 2 | 17 | 1.9K | 2.8K |
| 337 | Methodology | 1 | 17 | 1.0K | 1.0K |
| 337 | Recombinant DNA | 2 | 17 | 2.1K | 3.1K |
| 337 | Development | 1 | 17 | 1.4K | 1.6K |
| 337 | Approximation Theory | 2 | 17 | 326 | 370 |
| 337 | Nonlinear systems | 2 | 17 | 862 | 1.2K |
| 352 | Plant Genetics | 1 | 16 | 1.4K | 1.8K |
| 352 | Neurotoxicology | 1 | 16 | 1.2K | 1.6K |
| 352 | Apoptosis | 1 | 16 | 707 | 979 |
| 352 | neurotoxins | 1 | 16 | 707 | 979 |
| 352 | Neurotoxic agents | 1 | 16 | 707 | 979 |
| 352 | Synthetic biology | 1 | 16 | 736 | 874 |
| 352 | Genetic variation | 1 | 16 | 280 | 353 |
| 352 | plant molecular biology | 1 | 16 | 2.7K | 3.4K |
| 352 | DNA | 2 | 16 | 1.0K | 1.6K |
| 352 | Fluorescence | 1 | 16 | 940 | 962 |
| 352 | DNA polymerases | 1 | 16 | 1.0K | 1.6K |
| 352 | Nerve regeneration | 1 | 16 | 707 | 979 |
| 364 | Logic | 12 | 15 | 178 | 650 |
| 364 | Algebra | 12 | 15 | 686 | 1.5K |
| 364 | Algebraic Logic | 12 | 15 | 12 | 43 |
| 364 | Navier-Stokes equations | 1 | 15 | 330 | 252 |
| 364 | drug toxicity | 3 | 15 | 391 | 1.3K |
| 369 | Microbial Ecology | 1 | 14 | 4.3K | 5.5K |
| 369 | Immunopathology | 1 | 14 | 2.6K | 3.2K |
| 369 | Drug design | 1 | 14 | 3.5K | 3.9K |
| 369 | DNS | 1 | 14 | 1.2K | 1.6K |
| 369 | civilization | 19 | 14 | 481 | 1.1K |
| 369 | Radio waves | 2 | 14 | 1.2K | 1.7K |
| 375 | cell adhesion molecules | 1 | 13 | 1.3K | 1.8K |
| 375 | Transport | 1 | 13 | 778 | 1.2K |
| 375 | Sea | 1 | 13 | 602 | 904 |
| 375 | Fishery resources | 1 | 13 | 751 | 1.0K |
| 375 | Tropical Medicine | 1 | 13 | 3.6K | 4.0K |
| 375 | heredity | 1 | 13 | 1.6K | 1.9K |
| 375 | cell interaction | 1 | 13 | 2.3K | 2.9K |
| 375 | Cell communication | 1 | 13 | 1.9K | 2.4K |
| 383 | Political Science | 2 | 12 | 2.7K | 2.7K |
| 383 | Clinical Biochemistry | 4 | 12 | 1.2K | 2.7K |
| 383 | Pharmaceutical Chemistry | 4 | 12 | 4.3K | 7.4K |
| 383 | Alternative Medicine | 1 | 12 | 3.8K | 4.5K |
| 383 | Evidence-Based Medicine | 1 | 12 | 2.8K | 3.1K |
| 383 | complementary therapies | 1 | 12 | 4.2K | 4.8K |
| 383 | Refractory materials | 3 | 12 | 177 | 211 |
| 383 | Europe | 3 | 12 | 4.3K | 6.1K |
| 383 | Spiders | 3 | 12 | 47 | 51 |
| 392 | Mechanical Engineering | 8 | 11 | 1.8K | 3.8K |
| 392 | Anthropology | 11 | 11 | 960 | 3.0K |
| 392 | Algorithms | 1 | 11 | 1.3K | 1.3K |
| 392 | Combinatorial chemistry | 1 | 11 | 2.0K | 2.5K |
| 392 | Renewable Energy Sources | 1 | 11 | 3.4K | 4.4K |
| 392 | Helminthology | 2 | 11 | 205 | 318 |
| 392 | Smoking | 1 | 11 | 1.4K | 2.0K |
| 392 | Substance Abuse | 1 | 11 | 2.9K | 3.4K |
| 392 | Eurasia | 11 | 11 | 50 | 565 |
| 392 | Helminths | 2 | 11 | 205 | 318 |
| 392 | Scandinavia | 1 | 11 | 1.4K | 1.6K |
| 392 | drug addiction | 1 | 11 | 2.3K | 2.9K |
| 392 | drug abuse | 1 | 11 | 1.5K | 1.8K |
| 392 | Seismometers | 1 | 11 | 43 | 24 |
| 392 | Seismometry | 1 | 11 | 43 | 24 |
| 392 | Immune system | 1 | 11 | 2.3K | 2.9K |
| 392 | Behavior | 1 | 11 | 5.5K | 6.8K |
| 392 | Immunity | 1 | 11 | 3.7K | 4.8K |
| 410 | Neuropsychology | 3 | 10 | 2.7K | 4.9K |
| 410 | International Relations | 7 | 10 | 1.1K | 2.0K |
| 410 | Neurochemistry | 3 | 10 | 2.8K | 5.0K |
| 410 | Psychopharmacology | 3 | 10 | 2.1K | 3.7K |
| 410 | Wildlife conservation | 1 | 10 | 1.7K | 2.2K |
| 410 | Medicinal plants | 2 | 10 | 1.9K | 3.2K |
| 410 | Biogeochemistry | 1 | 10 | 1.8K | 2.5K |
| 410 | Geodynamics | 1 | 10 | 684 | 892 |
| 410 | pollutants | 1 | 10 | 3.3K | 4.4K |
| 410 | environmental exposure | 1 | 10 | 3.8K | 4.8K |
| 410 | magmatism | 1 | 10 | 74 | 80 |
| 410 | concrete | 2 | 10 | 937 | 1.5K |
| 410 | Steroids | 1 | 10 | 1.6K | 2.1K |
| 410 | Detectors | 2 | 10 | 2.2K | 3.3K |
| 410 | drugs | 2 | 10 | 2.9K | 4.7K |
| 425 | Nuclear Engineering | 1 | 9 | 2.5K | 2.6K |
| 425 | Nuclear Energy | 1 | 9 | 1.9K | 1.7K |
| 425 | Signal Transduction | 1 | 9 | 2.7K | 3.6K |
| 425 | Nonlinear functional analysis | 1 | 9 | 864 | 1.0K |
| 425 | Mycology | 1 | 9 | 2.9K | 3.5K |
| 425 | mycoses | 1 | 9 | 1.9K | 2.5K |
| 425 | Antarctica | 2 | 9 | 455 | 816 |
| 425 | Nematodes | 1 | 9 | 159 | 179 |
| 425 | Fungi | 1 | 9 | 1.5K | 2.0K |
| 425 | Animal | 2 | 9 | 270 | 639 |
| 435 | Petroleum Engineering | 4 | 8 | 629 | 1.5K |
| 435 | Engineering Physics | 1 | 8 | 269 | 197 |
| 435 | Neurogenetics | 1 | 8 | 982 | 1.4K |
| 435 | radiocarbon dating | 1 | 8 | 732 | 952 |
| 435 | Luminescence | 1 | 8 | 1.5K | 1.9K |
| 435 | pottery | 2 | 8 | 1.7K | 2.7K |
| 435 | mammals | 2 | 8 | 1.6K | 2.6K |
| 435 | synthesis | 2 | 8 | 1.6K | 2.3K |
| 435 | Flow cytometry | 1 | 8 | 1.1K | 1.5K |
| 444 | Civil Engineering | 2 | 7 | 2.5K | 3.2K |
| 444 | Clinical Pharmacology | 1 | 7 | 2.5K | 3.2K |
| 444 | symbiosis | 2 | 7 | 205 | 602 |
| 444 | ethnicity | 4 | 7 | 678 | 1.7K |
| 444 | Ethnic relations | 4 | 7 | 645 | 1.3K |
| 444 | Waste management | 1 | 7 | 2.9K | 3.6K |
| 444 | Water Purification | 1 | 7 | 2.4K | 3.1K |
| 444 | Water quality management | 1 | 7 | 3.7K | 4.5K |
| 444 | Malaria | 1 | 7 | 1.5K | 2.2K |
| 444 | Optoelectronic devices | 1 | 7 | 1.9K | 1.9K |
| 444 | viruses | 1 | 7 | 2.9K | 4.0K |
| 455 | Quality Control | 2 | 6 | 2.4K | 4.1K |
| 455 | Genetic translocation | 1 | 6 | 337 | 627 |
| 455 | Electromagnetic waves | 1 | 6 | 636 | 773 |
| 455 | Adaptive control systems | 3 | 6 | 671 | 1.5K |
| 455 | food handling | 1 | 6 | 1.1K | 1.7K |
| 455 | plasmids | 1 | 6 | 337 | 627 |
| 455 | optical devices | 1 | 6 | 992 | 1.3K |
| 455 | freshwater biology | 3 | 6 | 1.1K | 2.4K |
| 455 | proteins | 3 | 6 | 2.8K | 5.3K |
| 464 | Geriatrics | 2 | 5 | 4.8K | 6.8K |
| 464 | Analytical Biochemistry | 1 | 5 | 3.1K | 4.2K |
| 464 | Emergency Medicine | 1 | 5 | 3.3K | 3.9K |
| 464 | Microbial Biotechnology | 1 | 5 | 2.1K | 3.0K |
| 464 | Liquid Crystals | 2 | 5 | 1.4K | 1.9K |
| 464 | diffusion | 11 | 5 | 67 | 326 |
| 464 | Biological Systems | 1 | 5 | 1.7K | 2.5K |
| 464 | Freeze-Drying | 1 | 5 | 596 | 1.0K |
| 464 | Hypothermia | 1 | 5 | 596 | 1.0K |
| 464 | Freeze Drying | 1 | 5 | 596 | 1.0K |
| 464 | Cell survival | 1 | 5 | 572 | 1.1K |
| 464 | energy development | 1 | 5 | 1.7K | 2.6K |
| 464 | Chromatographic analysis | 2 | 5 | 2.9K | 4.6K |
| 464 | molecular chaperones | 1 | 5 | 621 | 1.1K |
| 464 | silicon | 3 | 5 | 380 | 1.1K |
| 479 | Humanities | 5 | 4 | 1.6K | 3.9K |
| 479 | Psychiatry | 2 | 4 | 6.7K | 10.0K |
| 479 | Electronics | 1 | 4 | 6.4K | 7.3K |
| 479 | Economic History | 13 | 4 | 1.9K | 6.2K |
| 479 | Food Preservation | 1 | 4 | 1.5K | 2.1K |
| 479 | Image Processing | 3 | 4 | 2.3K | 4.6K |
| 479 | Semiconductors | 4 | 4 | 1.2K | 3.0K |
| 479 | nuclear magnetic resonance | 1 | 4 | 1.9K | 2.5K |
| 479 | Magnetic Materials | 3 | 4 | 1.8K | 3.2K |
| 479 | Wildlife management | 1 | 4 | 1.0K | 1.4K |
| 479 | Magnetic Resonance Spectroscopy | 1 | 4 | 2.1K | 2.8K |
| 479 | nucleic acids | 1 | 4 | 3.4K | 4.7K |
| 479 | Sulfur | 1 | 4 | 268 | 462 |
| 479 | optical pattern recognition | 3 | 4 | 127 | 494 |
| 479 | Radio | 1 | 4 | 2.8K | 3.5K |
| 479 | Liquid chromatography | 1 | 4 | 1.2K | 1.7K |
| 479 | pigments | 1 | 4 | 736 | 1.3K |
| 496 | Electrical Engineering | 3 | 3 | 4.3K | 6.6K |
| 496 | Marine Engineering | 5 | 3 | 360 | 1.0K |
| 496 | Linguistics | 4 | 3 | 1.5K | 2.9K |
| 496 | Constitutional Law | 2 | 3 | 318 | 344 |
| 496 | Fluid Dynamics | 1 | 3 | 1.8K | 2.5K |
| 496 | Evolutionary Genetics | 1 | 3 | 1.4K | 2.3K |
| 496 | Molecular Epidemiology | 1 | 3 | 1.4K | 2.3K |
| 496 | Quantum Mechanics | 2 | 3 | 287 | 538 |
| 496 | Sexual health | 1 | 3 | 1.6K | 2.0K |
| 496 | Entropy | 1 | 3 | 2.4K | 3.2K |
| 496 | protein | 2 | 3 | 1.9K | 3.4K |
| 496 | Chemical processes | 1 | 3 | 1.3K | 2.1K |
| 496 | particles | 1 | 3 | 1.6K | 2.5K |
| 496 | peptides | 1 | 3 | 2.0K | 2.9K |
| 496 | Granular materials | 1 | 3 | 781 | 1.4K |
| 496 | Southeast Asia | 2 | 3 | 688 | 1.2K |
| 496 | Borderlands | 1 | 3 | 155 | 326 |
| 496 | Membranes | 1 | 3 | 2.3K | 3.4K |
| 514 | Law | 19 | 2 | 631 | 3.0K |
| 514 | Organizational change | 1 | 2 | 1.4K | 2.2K |
| 514 | Change management | 1 | 2 | 272 | 502 |
| 514 | Mobile genetic elements | 1 | 2 | 259 | 573 |
| 514 | Powder Metallurgy | 2 | 2 | 754 | 1.3K |
| 514 | Technological Innovations | 1 | 2 | 2.0K | 3.0K |
| 514 | Strategic planning | 1 | 2 | 1.4K | 2.2K |
| 514 | Radio wave propagation | 2 | 2 | 1.3K | 2.4K |
| 514 | Communism | 2 | 2 | 211 | 534 |
| 514 | Military readiness | 2 | 2 | 134 | 287 |
| 514 | Eastern Europe | 4 | 2 | 1.3K | 2.7K |
| 514 | Courts | 1 | 2 | 27 | 13 |
| 514 | management | 2 | 2 | 4.0K | 6.9K |
| 527 | Mining Engineering | 1 | 1 | 702 | 1.1K |
| 527 | History | 3 | 1 | 1.4K | 2.0K |
| 527 | Applied Mathematics | 1 | 1 | 2.0K | 2.6K |
| 527 | Molecular Pharmacology | 1 | 1 | 1.8K | 2.9K |
| 527 | Palynology | 1 | 1 | 587 | 958 |
| 527 | Demography | 1 | 1 | 1.5K | 2.4K |
| 527 | Regional Economics | 1 | 1 | 892 | 1.5K |
| 527 | Public Administration | 3 | 1 | 1.6K | 3.7K |
| 527 | Risk Management | 1 | 1 | 1.7K | 3.0K |
| 527 | International Law | 6 | 1 | 478 | 1.3K |
| 527 | Plate Tectonics | 1 | 1 | 372 | 612 |
| 527 | Combinatorial optimization | 1 | 1 | 1.0K | 1.5K |
| 527 | Fractional Calculus | 1 | 1 | 336 | 658 |
| 527 | Gerontology | 1 | 1 | 4.1K | 5.4K |
| 527 | Seaweed | 1 | 1 | 1.2K | 1.8K |
| 527 | Health Risk Assessment | 1 | 1 | 1.2K | 2.1K |
| 527 | city planning | 1 | 1 | 2.7K | 4.0K |
| 527 | Jurisprudence | 3 | 1 | 1.3K | 3.2K |
| 527 | Population | 1 | 1 | 2.0K | 3.0K |
| 527 | national security | 3 | 1 | 479 | 1.2K |
| 527 | crime | 1 | 1 | 1.2K | 1.8K |
| 527 | Decision making | 1 | 1 | 3.3K | 5.1K |
| 527 | Economic security | 3 | 1 | 30 | 41 |
| 527 | Venezuela | 1 | 1 | 289 | 287 |
| 527 | Marine algae | 1 | 1 | 376 | 721 |
| 552 | Education | 2 | 0 | 5.8K | 9.8K |
| 552 | Computer Science | 1 | 0 | 4.1K | 6.0K |
| 552 | Endocrinology | 1 | 0 | 5.7K | 7.5K |
| 552 | World History | 1 | 0 | 423 | 642 |
| 552 | Telecommunication Systems | 1 | 0 | 2.7K | 3.9K |
| 552 | Environmental Geology | 2 | 0 | 2.0K | 3.9K |
| 552 | Theology | 1 | 0 | 1.9K | 2.0K |
| 552 | Seismology | 1 | 0 | 1.0K | 1.6K |
| 552 | Nanoelectronics | 1 | 0 | 1.1K | 1.9K |
| 552 | Mining Geology | 1 | 0 | 231 | 449 |
| 552 | Mathematical Linguistics | 1 | 0 | 48 | 74 |
| 552 | Computational Linguistics | 1 | 0 | 1.2K | 2.0K |
| 552 | Solar Energy | 1 | 0 | 1.9K | 3.2K |
| 552 | economic forecasting | 1 | 0 | 383 | 806 |
| 552 | Volcanism | 1 | 0 | 28 | 66 |
| 552 | E-Learning | 1 | 0 | 92 | 302 |
| 552 | Law and Economics | 1 | 0 | 540 | 963 |
| 552 | Radiobiology | 1 | 0 | 3.2K | 4.2K |
| 552 | economic policy | 2 | 0 | 3.3K | 5.8K |
| 552 | War and Society | 1 | 0 | 404 | 731 |
| 552 | Teaching | 1 | 0 | 3.1K | 4.7K |
| 552 | rule of law | 1 | 0 | 118 | 197 |
| 552 | Mechanics | 1 | 0 | 2.4K | 3.6K |
| 552 | Communist countries | 2 | 0 | 407 | 1.1K |
| 552 | Volcanoes | 1 | 0 | 577 | 934 |
| 552 | Communication | 1 | 0 | 3.6K | 5.5K |
| 552 | Documentation | 1 | 0 | 755 | 1.2K |
| 552 | Economic reform | 2 | 0 | 101 | 332 |
| 552 | foods | 1 | 0 | 715 | 1.4K |
| 552 | economic conditions | 2 | 0 | 739 | 1.6K |
| 552 | Library Science | 2 | 0 | 1.9K | 3.7K |
| 552 | libraries | 3 | 0 | 814 | 2.0K |
| 552 | Learning | 1 | 0 | 2.4K | 3.7K |
| 552 | drainage | 1 | 0 | 631 | 1.1K |
| 552 | electroplating | 3 | 0 | 11 | 14 |
| 552 | Ukraine | 1 | 0 | 315 | 353 |
| 552 | Web-based instruction | 1 | 0 | 92 | 306 |
| 552 | finance | 3 | 0 | 2.3K | 4.7K |
| 552 | Credit | 3 | 0 | 123 | 493 |
| 552 | World Wide Web | 1 | 0 | 896 | 1.7K |
| 552 | Cerebral cortex | 1 | 0 | 1.7K | 2.6K |
| 552 | language | 1 | 0 | 1.6K | 2.5K |