Subject
Physics.
205
Chemistry.
146
Physical chemistry.
125
Earth sciences.
89
Mathematics.
87
Astronomy
84
Observations, Astronomical.
84
Astrophysics.
66
Organic chemistry.
38
Condensed matter.
32
Inorganic chemistry.
32
Atmospheric sciences.
31
Biochemistry.
31
Geophysics.
30
Gravitation.
26
Oceanography.
26
Hydrogeology.
21
Materials science.
21
Dynamical systems.
20
Hadrons.
20
Heavy ions.
20
Nuclear physics.
20
physics
20
Applied mathematics.
18
Engineering mathematics.
18
Statistics.
18
Mathematical analysis.
17
Analysis (Mathematics).
16
Atoms.
16
Geochemistry.
16
Partial differential equations.
16
Analytical chemistry.
15
Probabilities.
15
Statistical physics.
15
Numerical analysis.
14
Polymers.
14
Algebra.
13
Life sciences.
13
Mineralogy.
13
Computer science.
11
Elementary particles (Physics).
11
Mechanics.
11
Quantum field theory.
11
Catalysis.
10
Chemical engineering.
10
Algebraic geometry.
9
Computer science
9
Crystallography.
9
Engineering.
9
Global analysis (Mathematics).
9
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