Since last century, complex systems, complexity problems and their research have become the basic problems of systems science, social-economic science, physics, biology and so on. Complexity science is so called the science of the 21 st century. This paper looks back to the progress made on the study of complexity and complex systems in recent years and compares the Santa Fe approach with Syste...

background: conventional health, safety and environment (hse) are a widely used approach to enhance availability and efficiency of complex systems. the integrated hsee system is defined however as integration of conventional hse with ergonomics approach. the presented hsee system introduces a unique, effective and systemic mechanism, which integrates the structure of the human and organizationa...

Predicting the structural and electronic properties of complex systems is one of the outstanding problems in condensed matter physics. Central to most methods used in molecular dynamics is the repeated solution of large eigenvalue problems. This paper reviews the source of these eigenvalue problems, describes some techniques for solving them, and addresses the diiculties and challenges which ar...

A model is proposed for studying the reaction dynamics in complex quantum systems which complete mixing of states hindered by an internal barrier. Such are often treated transition-state theory, also known chemistry as RRKM but validity theory questionable when there no identifiable coordinate associated with The consists two Gaussian Orthogonal Ensembles (GOE) levels coupled to each other and ...