background gastroesophageal reflux disease (gerd) is a common problem seen in pediatrics and adolescents. the bravo tm ph monitoring system is a capsule that detects and quantifies the severity of reflux disease. this test is also valuable for evaluation of patients with extra-gastrointestinal manifestations of gerd such as asthma, chronic cough, hoarseness, aspiration pneumonia, and pre/post f...

We show that the complex PT -symmetric periodic potential V (x) = −(iξ sin 2x+ N)2, where ξ is real and N is a positive integer, is quasi-exactly solvable. For odd values of N ≥ 3, it may lead to exceptional points depending upon the strength of the coupling parameter ξ. The corresponding Schrödinger equation is also shown to go over to the Mathieu equation asymptotically. The limiting value of...

A logical explanation as to why the choice of

Shuying Zhang Faculty Mentor: Yan Zeng Department of Pharmacology Fall 2012 Foremost, I would like to express my sincere gratitude to my advisor Prof. Yan Zeng for the continuous support of my study and growing, for his patience, motivation, enthusiasm, and immense knowledge. His guidance helped me in all the time of research and writing of this report. I could not have imagined having a better...