Context: Respiratory tract infections are the main cause of children's morbidity and mortality both in developing developed countries. An accurate understanding epidemiology these diseases, identification risk factors, etiology seasonality critical for successful treatment and/or prevention program. Evidence Acquisition: This article aims at offering clinicians a brief update on recent respiratory pediatrics. It also underlines fact that any evidence-based recommendation needs more research...

The optimal management and treatment of pericardial effusion are still controversial. There is limited data related to the risk factors affecting survival in these patients. aim this study was determine rate patients with symptomatic who underwent surgical interventions.From 2004 2011, we retrospectively analysed 153 subxiphoid window as their intervention drain effusions at National Research Institute Tuberculosis Lung diseases (NRITLD). To effects on rate, demographic data, clinical...

Context: Respiratory tract infections are the main cause of children’s morbidity and mortality both in developing developed countries. An accurate understanding epidemiology these diseases, identification risk factors, etiology seasonality critical for successful treatment and/or prevention program. Evidence Acquisition: This article aims at offering clinicians a brief update on recent respiratory pediatrics. It also underlines fact that any evidence-based recommendation needs more...

This paper considers the problem of secure data communication through Global System for Mobile communications (GSM). The algebraic codebook method transmission Adaptive Multi Rate 12.2Kbps voice channel is investigated and its maximum achievable rate calculated. Based on vocoder properties, method's Bit Error (BER) performance improved by repetition coding classification methods. Simulation results show that simultaneous application clustering methods, decoder's improves about 6.5% compared...

This paper considers the problem of digital data transmission through Global System for Mobile communications (GSM). A modem is presented that utilizes codebooks Speech-Like (SL) symbols to transmit GSM Adaptive Multi Rate (AMR) voice codec. Using this codebook finite alphabet, continuous vocoder channel modeled by a Discrete Memory less Channel (DMC). heuristic optimization algorithm proposed select from database observed human speech such capacity DMC maximized. Simulation results show...

This paper considers the problem of digital data transmission through Global System for Mobile communications (GSM) security applications. A modem is presented that utilizes codebooks Speech-Like (SL) symbols to transmit GSM Adaptive Multi Rate (AMR) voice codec. Using this codebook finite alphabet, continuous vocoder channel modeled by a Discrete Memory less Channel (DMC). heuristic optimization algorithm proposed select from database observed human speech such capacity DMC maximized....

It is unknown whether continuous renal replacement therapy or furosemide superior in heart transplant recipients who are postoperative kidney insufficiency and volume overload. This prospective non-randomized, controlled trial investigated the efficacy of two methods after transplantation.We assigned 18 years age older were oliguric (urine output < 400 ml/day); had overload estimated glomerular filtration rate <60 ml/min/1.73 m(2) body surface area calculated with use Modification Diet Renal...

Background: Cystic fibrosis is a complex progressive disease which assessing its progression and severity essential. For this purpose there are scoring systems available to evaluate the severity. Objectives: The aim of present study was determine clinical status CF patients using shwachman score system in pediatric pulmonary ward Masih Daneshvari Hospital. Patients Methods: A cross-sectional conducted with system. 23 ranging from 5 to23 years were enrolled study. All data extracted...

Global System for Mobile communications (GSM) is a widely spread, reliable and P2P channel through all over the world. These characteristics make GSM suitable variety of applications in different domains especially security such as secure voice communication. Performance usage extremely depends on transmission data rate. Hence, transmitting still an attractive topic research. This paper considers problem digital channel. A lower capacity bound Adaptive Multi Rate (AMR) codec presented. The...

Introduction: Cystic fibrosis is a chronic disease with multiple organ involvement and chiefly results in respiratory infections, pancreatic insufficiency associated complications. The age at diagnosis, clinical presentation, rate of progression prognosis variable among patients. This study designed to evaluate the behavior provide epidemiologic data for early recognition proper management. Material methods: was as an active surveillance 192 patients diagnosed cystic tertiary lung centre...

Asthma exacerbations may occur due to a variety of triggers including respiratory viruses. The aim this study was determine the role particular viral infections in asthma children.The performed at Dr. Daneshvari Hospital Pediatric Emergency Department, Shahid Beheshti University Medical Sciences, Tehran, Iran between 2014 and 2015. A nasopharyngeal aspirate or swab obtained from each patient during admission. All samples were maintained 4 °C until submission virology laboratory tested for...

Background: In spite of recent advents, and novel improvements in the diagnosis treatment pulmonary tuberculosis (TB), definitive TB children is problematic. Therefore, measurement serum level adenosine deaminase (ADA) was later introduced as a helpful marker for TB. Objectives: The purpose this study to determine usefulness ADA testin TB, compare enzyme activity between patients with those other infections. sampling strategy randomized, design case-control diagnostic descriptive, we used...

The voice channels present in cellular communication networks provide reliable, widespread and high priority mediums. Using these as a bearer for data transmission allows to deliver Quality of Service data. But include vocoders that hinder the flow by compressing waveforms prior transmission. Calculating vocoder channel capacity remains challenging problem since no analytical model has been proposed so far. In this research, simplified models are bounds on derived based them. common...

Background: Progressive destruction of the lungs leads to increased morbidity and mortality rates in patients with CF. In various studies, it has been shown that quantitative evaluation parenchymal changes lung high-resolution computed tomography (HRCT) CF measured by 2006 revised Brody scoring is compatible clinical status. are mostly children who cannot perform complicated pulmonary tests. Unfortunately, screening tests not performed many countries, such as Iran, resulting late diagnosis...