SUMMARY. .................................................................................6 CHAPTER I ..........................................................................................................7 INTRODUCTION Background.....................................................................................................7 Problem Statement...............................................

Why are we still struggling to control the devastating effects of childhood tuberculosis? This disease has been with us since ancient times and yet, even with known effective prevention and treatment strategies, much of the world has unacceptable levels of childhood morbidity and mortality due to tuberculosis. As expected, progress in identification and treatment has occurred primarily in high-...

In this note we explore a useful equivalence relation for the delay distribution in the G/M/1 queue under two different service disciplines: (i) PS (Processor Sharing); and (ii) ROS (Random Order of Service). We provide a direct probabilistic argument to show that the sojourn time under PS is equal (in distribution) to the waiting time under ROS of a customer arriving to a non-empty system. We ...

BACKGROUND Alveolar macrophages from patients with sarcoidosis express increased quantities of HLA-DR during activation. Because silver staining has been described as a sensitive indicator of cellular activity a study was performed to examine whether it relates to HLA-DR antigen expression. METHODS The relation between silver staining patterns of nucleoli and HLA-DR antigen expression was exa...