Theoretical and computational research in the 21st century

 Content: Preface    The Time Evolution of the Hard and Soft Acids and Bases (HSAB) Theory; Nazmul Islam and Dulal C. Ghosh    Magneto Hydrodynamic Effects on an Atherosclerotic Artery: A Theoretical Study; Ratan Kumar Bose    A Fast Solver for the Backward Heat Conduction Problem in Unbounded Domains; Rafael G. Campos and Adolfo Huet    Steganographic Method for Color Images Using Variance Field Estimation and Scaling Factor for Energy Conservation; Blanca E. Carvajal-Gamez, Francisco J. Gallegos-Funes, and J. L. Lopez-Bonilla    Breviary of Quantum Computation; Hernando Efrain Caicedo-Ortiz and Elizabeth Santiago-Cortes    Classical Charged Particles in Arbitrary Motion; J. H. Caltenco, J. Lopez-Bonilla, R. Lopez-Vazquez, and Laurian Ioan Piscoran    Second Order Linear Differential Equation in Its Exact Form; A. Hernandez-Galeana, J. M. Rivera-Rebolledo, and J. Lopez-Bonilla    On the Operator Exp( 2 LAMBDA (P + Q)); J. Morales, G. Ovando, R. Cruz-Santiago, and J. Lopez-Bonilla    Quantum Computational Studies on Porphycene; Nazmul Islam    The Evaluation of Protonation Energy of Molecules in Terms of Quantum Theoretical Descriptors; Sandip Kumar Rajak and Dulal Chandra Ghosh    Analysis of Casson Fluid Model for Blood Flow in Externally Applied Magnetic Field; Ratan Kumar Bose    Index