In this paper, we investigate the dynamics of a discrete-time predator-prey system involving group defense.The existence and local stability of positive fixed point of the discrete dynamical system is analyzed algebraically.It is shown that the system undergoes a flip bifurcation and a Neimark-Sacker bifurcation in the interior of R+2 by using bifu

Introduction: Venous hypertension (VH) Tilt Switch is a distressing complication following the creation of arteriovenous fistula (AVF).The aim of management is to relieve edema with preservation of AVF.Extensive edema increases surgical morbidity with the loss of hemodialysis access.We present our experience in management of VH.Methods: A retrospec

Background: We established that the age at inception of T1DM significantly impacts the long-term risk of developing proliferative retinopathy in affected children and adolescents.Patients with T1DM, diagnosed before the age of 15 are at a significantly higher risk than children diagnosed at age 15 and older.For instance, several studies show change