In this paper, we derive bit error performance bounds for turbo codes on Nakagami fading channels with diversity combining. We first derive the average pairwise error probability expressions for turbo codes with maximal ratio combining (MRC), equal gain combining (EGC), and selection combining (SC) on Nakagami fading channels. Using the pairwise error probability expressions and the union bound...

BACKGROUND Severity of chronic obstructive pulmonary disease (COPD) is based either on symptoms/disability or lung function, which have no discernible correlation. We hypothesised that impulse oscillometry (IOS), a non-effort-dependent measure of central and peripheral airway mechanics, could correlate to dyspnoea in COPD. METHODS We analysed screening data from 57 COPD patients who had spiro...

Purpose / introduction Magnetic Resonance Colonography (MRC) is studied as screening technique for colorectal cancer. The lack of ionizing radiation and the superior contrast resolution over computed tomography (CT) make MRC a valuable alternative to CT-colonography [1]. At present the optimal scan parameters and bowel preparation, aimed at high image quality and minimized patient burden, are n...

Maximally recoverable codes are a class of which recover from all potentially erasure patterns given the locality constraints code. In earlier works, these have been studied in context with locality. The notion has extended to hierarchical locality, allows for gradually increase levels number erasures. We consider imposed by two-level and define maximally characterize set can be corrected data-...

Machine reading comprehension (MRC) is a type of question answering mechanism in which computer reads documents and answers related questions. The accuracies recent MRC systems surpass those humans. However, most exhibit significant performance deteriorations when domains are changed. Hence, we propose self-training framework for MRC. proposed composed pseudo-answer extractor, pseudo-question g...

PURPOSE The aim of this study was to evaluate the usefulness of magnetic resonance cholangiography (MRC) for the diagnosis of biliary atresia in infantile cholestatic jaundice. METHODS Forty-seven consecutive infants with cholestatic jaundice underwent single-shot MRC. The diagnosis of biliary atresia was made by MRC based on the nonvisualization of extrahepatic bile ducts and excluded on the...

The MRC Patulin trial1 was undertaken in 1943–1944 to investigate a proposed remedy for the common cold. Only a few clinical trials took place before the second world war and they often had serious defects of planning or execution. The Patulin trial, it is claimed, was the first to meet the rigorous requirements for a scientifically acceptable trial with concurrent controls, as set out original...

background and aims: adventitious agents, especially viral agents are among the most important concerns in viral vaccines. viral contamination of biological products may arise from the original source of the reagents such as, serum, trypsin, animal or human derived media components or cell culture and working seed or cross contamination of vaccine during production. in this study, adventitious ...

BACKGROUND Despite various culotte-based stenting techniques available clinically, the optimal one remains undetermined. The study aimed to test whether ex vivo mono-ring culotte stenting (MRC) was technically feasible and superior to mini culotte stenting (MCS) in treatment of coronary bifurcation lesions. METHODS Mono-ring culotte stenting was characterized by ex vivo wiring of the most pro...

There has been extensive research on large scale multi-user multiple-input multiple-output (MUMIMO) systems recently. Researchers have shown that there are great opportunities in this area, however, there are many obstacles in the way to achieve full potential of using large number of receive antennas. One of the main issues, which will be investigated thoroughly in this paper, is timing asynch...