- Particle and Nuclear Physics 23
- Physics, general 22
- Theoretical, Mathematical and Computational Physics 22
- Natural Hazards 13
- Environmental Management 7
- Environmental Policy 7
- Sustainable Development 7
- Social Policy 6
- Biomedicine, general 5
- Communications Engineering, Networks 4
- Computational Intelligence 4
- Computer Communication Networks 4
- Internal Medicine 4
- Biochemistry, general 3
- Cell Biology 3
- Climate Change Management and Policy 3
- Comparative Social Policy 3
- Environmental Law/Policy/Ecojustice 3
- Management 3
- Medical Biochemistry 3