Aortopulmonary window (APW) is a congenital heart defect characterized by the presence of an abnormal connection between pulmonary artery and proximal part aortic arch directly above level semilunar valves. It one rarest cardiac defects (frequency 0.2–0.6 %). APW occurs as isolated lesion or in association with other anomalies such coarctation aorta, interrupted arch, tetra­logy Fallot, atrial ...

The purpose of this study was the development of a clustering methodology to deal with arterial pressure waveform (APW) parameters to be used in the cardiovascular risk assessment. One hundred sixteen subjects were monitored and divided into two groups. The first one (23 hypertensive subjects) was analyzed using APW and biochemical parameters, while the remaining 93 healthy subjects were only e...

In this study, the estimation of unknown parameters an alpha power Weibull (APW) distribution using concept optimal strategy for step-stress accelerated life testing (SSALT) is investigated from both classical and Bayesian viewpoints. We used progressive type-II censoring to reduce time costs, we a cumulative exposure model examine impact various stress levels. A log-linear relation between sca...

The arterial pulse wave (APW) has a distinct morphology whose contours reflect dynamics in cardiac function and peripheral vascular tone as a result of sympathetic nervous system (SNS) control. With a transition from rest to increased metabolic demand, the expected augmentation of SNS outflow will not only affect arterial blood pressure and heart rate but it will also induce changes to the cont...

We have adopted the Harris functional approximation in a standard framework of augmentedplane-wave (APW), density-functional calculations. Our implementation of the Harris approximation is based on a charge density from a self-consistent APW band-structure calculation for one lattice constant. This charge density is then frozen for calculation of the electronic structure and total energy at oth...

Motivated by recent analytical and numerical work on two-and three-dimensional convection with imposed spatial periodicity, we analyse three examples of bifurcations from a continuous group orbit of spatio-temporally symmetric periodic solutions of partial differential equations. Our approach is based on centre manifold reduction for maps, and is in the spirit of earlier work by Iooss (1986) on...

PURPOSE To evaluate the accuracy of the washout in the differential diagnosis between adenomas and nonadenomas and to compare the obtained results in delayed CT scans at 5, 10 and 15 minutes. METHODS Fifty patients with adrenal masses were prospectively evaluated. CT scans were performed by using a 320-row MDCT device, before and after injection of contrast material. In 25 cases, delayed scan...

Density functional theory (DFT) calculations of the magnetic shielding for solid state nuclear magnetic resonance (NMR) provide an important contribution for the understanding of the experimentally observed chemical shifts. Therefore, methods allowing us to compute those parameters with high precision are very valuable. Recently, we have presented a formalism for computing the NMR parameters in...