History 102 Mathematics 84 Mathematical models 82 Data processing 74 Mathematical statistics 60 Statistical methods 55 Probabilities 37 Physics 36 Regression analysis 34 Analysis 32 Chemistry, Organic 32 Fluid dynamics 32 Stochastic processes 31 Environmental aspects 30 Science 30 Numerical analysis 28 Polymers and polymerization 26 Mathematical optimization 25 Quantum theory 25 Statistics 24 Chemistry 23 Problems, exercises, etc 23 Chemistry, Analytic 22 Differential equations 22 Heat 22 Numerical solutions 22 Synthesis 22 Climatic changes 21 Differential equations, Partial 21 Electromagnetism 21