We introduce the first class of perfect sampling algorithms for the steady-state distribution of multiserver queues with general interarrival time and service time distributions. Our algorithm is built on the classical dominated coupling from the past protocol. In particular, we use a coupled multi-server vacation system as the upper bound process and develop an algorithm to simulate the vacati...

Introduction: Elective upper and lower GI endoscopy is usually performed in children on an outpatient basis with the child under sedation or general anesthesia (GA). The objective of this study was to describe Anesthesia related complications in   children undergoing elective GI endoscopy.   Materials and Methods: The study design was descriptive on 1388 patients undergoing elective GI endoscop...

Drug delivery across the skin is used for several millennia to ease gastrointestinal (GI) ailments in Traditional Persian Medicine (TPM). TPM topical remedies are generally being applied on the stomach, lower abdomen, lower back and liver to alleviate GI illnesses such as dyspepsia, gastritis, GI ulcers, inflammatory bowel disease, intestinal worms and infections. The aim of the present study i...

upper gi endoscopy

background: in medicine, especially in pediatrics, it is necessary to perform regular epidemiologic studies in different geographic regions. this study was performed in nemazee hospital, shiraz, southern iran to determine the gastrointestinal (gi) disease spectrum, the mortality and also the rate of matching final diagnosis with the initial impression in pediatric gi ward. â  methods: of all th...