Little is known about lung function during early stages of postnatal maturation, although the complex structural changes associated with developing rat lung are well studied. We therefore analyzed corresponding functional (lung volume, respiratory mechanics, intrapulmonary gas mixing, and gas exchange) and structural (alveolar surface area, mean linear intercept length, and alveolar septal thic...

ON-THE-FLY DYNAMIC DEAD VARIABLE ANALYSIS Joel Self Department of Computer Science Master of Science State explosion in model checking continues to be the primary obstacle to widespread use of software model checking. The large input ranges of variables used in software is the main cause of state explosion. As software grows in size and complexity the problem only becomes worse. As such, model ...

In adult respiratory distress syndrome (ARDS) pulmonary perfusion failure increases physiologic dead-space (VD/VT) correlating with mortality. High VD/VT results in alveolar hypocapnia, which has been demonstrated to cause edema formation, atelectasis, and surfactant depletion, evoked, at least in part, by apoptosis of alveolar epithelial cells (AEC). However, the mechanism underlying the hypoc...

conclusions hepatic alveolar hydatid cyst should be considered one of the important differential diagnoses of liver masses, especially in endemic areas of the world. results there were 24 published cases of liver-involved alveolar hydatid cyst from iran. the disease was more common in young- to middle-aged women in northeast iran. the most common presenting signs and symptoms were abdominal pai...

BACKGROUND Increased dead-space fraction is common in patients with persistent acute respiratory distress syndrome (ARDS). We evaluated the changes in the oxygenation and dead-space fraction in patients with persistent ARDS after corticosteroid therapy. METHODS This was a non-randomized non-placebo, controlled observational study including 19 patients with persistent ARDS treated with cortic...

Elafin and secretory leukocyte protease inhibitor (SLPI) are two structurally related serine protease inhibitors present in the lung. The cellular origin of elafin in the alveolar space is unknown. It has been suggested that at least one alveolar leukocyte population express elafin. We therefore postulated that the alveolar macrophage, as the most numerous leukocyte in the alveolar space, expre...

The conventional McIntyre carrier multiplication theory for avalanche photodiodes (APD’s) does not adequately describe the experimental results obtained from APD’s with thin multiplication-regions. Using published data for thin GaAs and Al0 2Ga0 8As APD’s, collected from multiplication-regions of different widths, we show that incorporating dead-space in the model resolves the discrepancy. The ...