- Elementary Particles, Quantum Field Theory 115
- Quantum Field Theories, String Theory 115
- Classical and Quantum Gravitation, Relativity Theory 95
- Quantum Physics 95
- Astronomy, Astrophysics and Cosmology 20
- Measurement Science and Instrumentation 20
- Nuclear Energy 20
- Nuclear Physics, Heavy Ions, Hadrons 20
- Metallic Materials 19
- Characterization and Evaluation of Materials 18
- Structural Materials 16
- Nanotechnology 14
- Surfaces and Interfaces, Thin Films 13
- Cell Biology 6
- Classical and Continuum Physics 5
- Internal Medicine 5
- Medicine/Public Health, general 5
- Plant Physiology 4
- Vibration, Dynamical Systems, Control 4
- Biochemistry, general 3