Applied numerical analysis-- Applied mathematics 179 Mathematics 167 Dissertations, Academic (Ph.D) 145 Electronics engineering; Applied physics 138 Thesis (Ph.D)-Physics 111 Statistical mathematics-- Applied mathematics 106 Applied Psychology 103 Statistical mathematics--Applied mathematics 99 Applied physics 90 Statistics 90 Applied linguistics 89 Psychology 80 Economics 70 Microbiology 68 Applied mathematics 67 Probabilities-- Applied mathematics 65 Applied numerical analysis; Applied mathematics 57 Physics 57 Applied psychology 55 Agronomy 54 Circuits; Electronics engineering; Applied physics 51 Engineering & allied operations 51 Philosophy 45 Mathematical models 43 Social sciences 43 Differential equations 42 Research 40 Biotechnology 39 Engineering 39 Probabilites and Applied Mathematics 39