Phylogeny is the study of evolutionary relatedness among various groups of organism. Molecular phylogeny has also revealed that horizontal transfer plays an important and unexpected role in evolution. Phylogenetic analysis has shown that E. coli strains fall into four main phylogenetic groups (A, B1, B2,and D). the phylogeny groups of E. coli are distributed into intestinal and extraintestinal. There are three markers used in the phylogenetic analysis of E. coli as follows:- chuA, yjaA, and TspE4.C2. The presence of pathogenicity islands is one of the most indicator of the possession of E....

In recent years, telecommunication operators are constantly seeking more efficient wireless broadband service, while tele-communication technology is continuously upgrading its access network technologies to cope with the high demands for high-speed internet access and multimedia service by end-users. WiMAX seems to be the solution as it is able to provide easy deployment, high speed data rate and wide range coverage. Most importantly, WiMAX provides Quality of Service (QoS) that can support all kinds of real-time application in wireless networks that includes priority scheduling and queuing...