Exact absorbing conditions are used in computational electrodynamics of nonsine waves for truncating the domain of computation when replacing the original open initial boundary value problem by a modified problem formulated in a bounded domain. In this paper we prove the equivalency of these two problems.

background and aim: quick speech in noise (q-sin) test has popularity for evaluating speech recognition in noise. the present study has been paid to build five new persian lists with respect to all possible factors affecting the test, to determine validity of the test and to run five lists for normal hearing subjects and assessment of reliability. methods: to build lists, frequent, familiar and...

BACKGROUND AND PURPOSE It is desirable to develop a bedside method for assessing cerebral development in the very premature infant to monitor the effectiveness of interventions aimed at improving cerebral development. Our aim was to describe the growth trajectory of the corpus callosum (CC) on cranial sonography in very premature infants. METHODS We recruited 100 very-low-birth-weight infants...

Prediction of human volume of distribution at steady state (V(ss)) before first administration of a new drug candidate to humans has become an important part of the drug development process. This study examines the assumptions behind interspecies scaling techniques used to predict human V(ss) from preclinical data, namely the equivalency of V(ss,u) and/or f(ut) across species. In addition, seve...

â  ba ckground the only curative therapy for end-stage liver disease is transplantation but due to a shortage of available donor livers the waiting list mortality is high. this study aimed to evaluate the outcome and characteristics of patients on the waiting list for liver transplantation in shiraz, southern iran during the period from april 2004 to march 2007. methods medical records of all c...

See related articles, p 882, p 889, and p 896 have increased, remained static, or decreased. In the United States alone, >60 000 infants weighing <1500 g are born annually. Magnetic resonance imaging (MRI) provides an opportunity to characterize the nature and timing of cerebral injury and alterations in cerebral development in preterm infants both during their intensive care unit stay and thro...

the effectiveness of any drug supply systems in providing a trustworthy supply of essential drugs is a critical issue. to evaluate this effectiveness, it is necessary to watch over the status of the essential medicines in any country impartially and continuously. some countries and also the world health organization (who) have codified a list of minimum medicines needed for a basic health care ...

an experiment was conducted using 640 day-old sexed commercial broiler chicks (ross 308 strain) from 10 to 49 days of age. the experimental design was a completely randomized factorial one. the experimental units (pens) contained 20 chicks each and were allotted at random to 4 dietary treatments × two sexes with 4 replicates per treatment. four dietary treatments were formulated based on corn a...