5.1 INTRODUCTION Multi-band orthogonal frequency division multiplexing (MB-OFDM) based transmission for ultra-wideband (UWB) is commercially successful for high speed Wireless Personal Area Networks (WPAN). It offers enhanced coexistence with traditional and protected radio services by dynamical turn on/off of subcarriers. The distinct feature of MB-OFDM is the use of Zero Padding (ZP) instead ...

as the chief communication channel between eastern and western civilizations, the  silk road has played the significant role in the history of northeastern iran. the  silk road has provided a communicative way for commercial exchanges in one hand, and was in used by invader nomads in order to plunder of northeastern iran during many decades in other hand. the contacts have led to interaction be...

BACKGROUND The Hajj Ceremony, the largest annual gathering in the world, is the most important life event for any Muslim. This study was designed to evaluate the incidence of stroke among Iranian pilgrims during the Hajj ceremony. METHODS We ascertained all cases of stroke occurring in a population of 92,974 Iranian pilgrims between November 27, 2007 and January 12, 2008. Incidence and risk f...

conclusions the at1r a1166c polymorphism appeared not to be associated with the presence of acs in the population studied. background there are very limited data for iranian populations on the predisposing genetic factors for acute coronary syndrome (acs). results there was no statistical difference in the genotype frequency of patients and healthy subjects with regard to age and gender (p > 0....

BACKGROUND During the last three decades, ethics committees have been formed with a growing trend. These committees have a satisfactory and effective impact on the pattern of patient care and its performance. The medical ethics committee is considered one of the most active committees in hospitals, having the aim of providing necessary approaches for the optimal use of the findings in empirical...

Background: Substance abuse treatment is challenging in pregnancy, and methadone maintenance therapy (MMT) a therapeutic choice. Methadone can cross the placenta poorly secreted breast milk. Given these inconsistent findings of effect on neonatal outcomes, this study was done to investigate results neonates mothers treated with Mashhad. Methods: In retrospective cohort study, referring two acad...

Explaining the Basics and Principles of maintenance upgrading urban streets with approach Islamic teachings Iranian culture (Imam Reza Zaman Street Mashhad)

The weighted semigroup algebra Mb (S, w) is studied via its identification with Mb (S) together with a weighted algebra product *w so that (Mb (S, w), *) is isometrically isomorphic to (Mb (S), *w). This identification enables us to study the relation between regularity and amenability of Mb (S, w) and Mb (S), and improve some old results from discrete to general case.