We read with interest the important prospective natural history study of respiratory virus infections (RVI) in lung transplant recipients by Bridevaux et al. Although the authors were unable to find an association between acute rejection and RVI, they acknowledge the possibility that RVI might predispose to chronic rejection, bronchiolitis obliterans syndrome (BOS). The association between BOS ...

We read with interest the important prospective natural history study of respiratory virus infections (RVI) in lung transplant recipients by Bridevaux et al. Although the authors were unable to find an association between acute rejection and RVI, they acknowledge the possibility that RVI might predispose to chronic rejection, bronchiolitis obliterans syndrome (BOS). The association between BOS ...

A scenario is put forth for the formation of supermassive black holes at the centers of galaxies. It depends upon the formation of a Mestel disk with a flat rotation curve, M<r ∝ r and Σ ∝ 1/r. Such disks could form from the collapse of uniformly rotating, isolated, gaseous clouds, either proto-galactic, galaxy-mass damped Lyα clouds or the gas that survives galaxy mergers. We propose that in e...

Spatial and temporal monitoring of agricultural crop is one of the important aspects for the agricultural production estimation for India. Among the various remote sensing tools, role of polarimetric SAR is being evaluated for the assessment of its utility in providing improved information. In view of importance of polarimetric techniques, it is necessary to understand the role of polarimetric ...

Background Right ventricular infarction (RVI) develops in 30-50% of patients with inferior wall infarction (IWI). The rates of mortality, morbidity, and complications in these patients are greater than in the patients without RVI. We compared the tissue Doppler imaging (TDI) indices between a group of patients with IWI and RVI, with a similar group of patients who had IWI alone to investigate t...

Introduction Cellular water content, which accounts for 70% of the cellular mass, is the main determinant of cell volume. In animal cells, which are devoid of rigid walls, it is generally accepted that the water content is dictated by the amount of osmotically active cellular particles. Inorganic ions constitute a major fraction of the cellular osmolytes. It is therefore not surprising that cha...

BACKGROUND Although proximal right coronary artery (RCA) occlusion is the culprit commonly responsible for acute right ventricular (RV) infarction (RVI), the severity of RV dysfunction ranges broadly. This study was designed to delineate the patterns of coronary compromise that determine the magnitude of RV ischemic dysfunction. METHODS AND RESULTS In 125 patients with acute inferior myocardi...

The transport pathways mediating regulatory volume increase (RVI) and beta-adrenergic responses in red cells of the European flounder Platichthys flesus have been investigated. Hypertonic treatment under a low-PO2 atmosphere led to a complete RVI and to a three- to fourfold increase in Na+ influx. The RVI and the activated Na+ influx were blocked by the transport inhibitors amiloride and 4, 4'-...

BACKGROUND Initiation of reentrant ventricular tachycardia (VT) involves complex interactions between front and tail of the activation wave. Recent experimental work has identified the time interval between S2 repolarization proximal to a line of functional block and S2 activation at the adjacent distal side as a critical determinant of reentry. OBJECTIVES We hypothesized that (1) an algorith...

In this paper, we propose and evaluate a distributed, energy-efficient, light-weight framework for target localization and tracking in wireless sensor networks. Since radio communication is the most energy-consuming operation, this framework aims to reduce the number of messages and the number of message collisions, while providing refined accuracy. The key element of the framework is a novel l...