We study the 2-D Helmholtz equation in perturbed stratified media, allowing the existence of guided waves. Our assumptions on the perturbing and source terms are not too restrictive. We prove two results. Firstly, we introduce a Sommerfeld-Rellich radiation condition and prove the uniqueness of the solution for the studied equation. Then, by careful asymptotic estimates, we prove the existence ...

The objectives of this study were to compare relative vaccine-specific serum immunoglobulin concentrations, vaccine-specific lymphoproliferative responses, and cytokine profiles of proliferating lymphocytes between 3-day-old foals, 3-month-old foals, and adult horses after vaccination with a killed adjuvanted vaccine. Horses were vaccinated intramuscularly twice at 3-week intervals with a vacci...

objective: attention-deficit/hyperactivity disorder (adhd) is a common mental disorder in adults that was under-diagnosed until recently. due to probable consequences of adhd such as occupational and educational dysfunctions and substance use, this disorder is becoming more and more of a concern. this study aimed to investigate adhd symptoms among students of zahedan university of medical scien...