- Sustainable Architecture/Green Buildings 9
- Characterization and Evaluation of Materials 8
- Elementary Particles, Quantum Field Theory 6
- Energy Policy, Economics and Management 6
- Quantum Field Theories, String Theory 6
- Science, Humanities and Social Sciences, multidisciplinary 6
- Engineering Thermodynamics, Heat and Mass Transfer 5
- Classical and Quantum Gravitation, Relativity Theory 4
- Internal Medicine 4
- Medicine/Public Health, general 4
- Optical and Electronic Materials 4
- Quantum Physics 4
- Science, multidisciplinary 4
- Astronomy, Astrophysics and Cosmology 3
- Atmospheric Protection/Air Quality Control/Air Pollution 3
- Condensed Matter Physics 3
- Engineering Fluid Dynamics 3
- Gastroenterology 3
- Imaging / Radiology 3
- Nanotechnology 3