- Astronomy, Observations and Techniques 6
- Classical and Continuum Physics 6
- Physics, general 6
- Artificial Intelligence 4
- Environment, general 3
- Environmental Chemistry 3
- Image Processing and Computer Vision 3
- Materials Science, general 3
- Orthopedics 3
- Rheumatology 3
- Astronomy, Astrophysics and Cosmology 2
- Atmospheric Protection/Air Quality Control/Air Pollution 2
- Computational Biology/Bioinformatics 2
- Computational Science and Engineering 2
- Data Mining and Knowledge Discovery 2
- Ecotoxicology 2
- Elementary Particles, Quantum Field Theory 2
- Environmental Health 2
- Measurement Science and Instrumentation 2
- Nuclear Energy 2