BACKGROUND & AIMS As the economic burden of gastroesophageal reflux disease (GERD) is largely weighted to maintenance as opposed to initial therapy, switching from more potent to less expensive medication once symptoms are alleviated (step-down therapy) may prove to be most cost-effective. This study aimed to prospectively evaluate the feasibility of step-down therapy in a cohort of patients wi...

ACKNOWLEDGEMENT This thesis could not be developed without the contribution from a lot of people in the last two years. First, I would like to thank my advisors, Dr. Gábor C. Temes and Dr. Un-Ku Moon, for the guidance and support. They gave me a chance to start my education here, and provided a very good environment for my research and study. I would also like to acknowledge the other members o...

In this paper, we show a general way to interpret the infrastructure of a global field of arbitrary unit rank. This interpretation generalizes the prior concepts of the giant-step operation and f -representations, and makes it possible to relate the infrastructure to the (Arakelov) divisor class group of the global field. In the case of global function fields, we present results that establish ...

background several studies showed that dopamine and norepinephrine improve retention and retrieval of memory. methylphenidate is an enhancer of dopamine and norepinephrine in brain. objectives in the present study, the effect of methylphenidate was evaluated on retention and retrieval of memory in young and aged mice using passive avoidance apparatus. materials and methods animals were divided ...

We discuss the nonabelian world-volume action which governs the dynamics of N coincident Dp-branes. In this theory, the branes’ transverse displacements are described by matrix-valued scalar fields, and so this is a natural physical framework for the appearance of noncommutative geometry. One example is the dielectric effect by which Dp-branes may be polarized into a noncommutative geometry by ...

The study investigates how customer perceptions of parent brands influence the perceived value brand extensions in hotel industry and these relationships are moderated by nature extension question. Drawing on equity logic, proposes that positive attributes, awareness, attitudes, loyalty toward positively relate to higher extension, grow stronger cases step-down rather than step-up extensions. S...