introduction: rapid diagnosis of traumatic intrathoracic injuries leads to improvement in patient management. this study was designed to evaluate the diagnostic value of chest radiography (cxr) in comparison to chest computed tomography (ct) scan in diagnosis of traumatic intrathoracic injuries. methods: participants of this prospective diagnostic accuracy study included multiple trauma patient...

Voltage is an important variable that reflects system conditions in DC distribution systems and affects many characteristics of a system. In a DC distribution system, there is a close relationship between the real power and the voltage magnitude, and this is one of major differences from the characteristics of AC distribution systems. One such relationship is expressed as the voltage sensitivit...

The purpose of this document is to describe important tire characteristics and their effect on vehicle performance. Characteristics considered are those that the Formula SAE judges have deemed important for discussion on tires at competition and include coefficient of friction, slip angle, slip ratio, camber angle, cornering stiffness, camber stiffness, self-aligning torque, normal load sensiti...

background: ethical sensitivity is considered as a component of professional competency of nurses. its effects on improvement of nurses’ ethical performance and the therapeutic relationship between nurses and patients have been reported. however, very limited studies have evaluated ethical sensitivity. since no previous iranian research has been conducted in this regard, the present study aimed...

introduction: pulmonary tuberculosis (tb) is one of the main infectious diseases in developing countries. the early diagnosis of tb is important for reducing its mortality & morbidity. therefore this study was conducted to evaluate diagnostic role of high resolution computerized tomography (hrct) in active pulmonary tb . materials and methods: in a clinical trial study 114 suspicious patients (...