Since before the days of Archimedes, scientists have assisted their nations in dealing with war. They have also improved the ability of societies to cope with the vagaries of Nature with safer and more robust transportation, dams, waterways, and bui
When a new subtype of HA gene is transmitted from aquatic birds to human, the influenza pandemics occur sometimes. Research of the origin and evolution of HA gene is an important task for biologists. In this study, based on an efficient mathematical
