INTRODUCTION Idiopathic pulmonary fibrosis (IPF) is a severe disease with no known effective therapy. Patients with IPF may develop severe increase of pulmonary arterial pressure (PAP) on exercise, the mechanisms of which is not clearly identified. OBJECTIVES To determine whether oxygen may correct the increase of PAP developed during exercise in patients with IPF. PATIENTS AND METHODS We p...

In this study, a 3D combustion chamber was simulated using FLUENT 6.32. Aims to obtain accurate information about the profile of the combustion in the furnace and also check the effect of oxygen enrichment on the combustion process. Oxygen enrichment is an effective way to reduce combustion pollutant. The flow rate of air to fuel ratio is varied as 1.3, 3.2 and 5.1 and the oxygen enriched flow ...

In glucose-limited continuous-flow cultures of Aspergillus nidulans, the mean length of hyphalsegments and the degree of branching were independent of the dissolved oxygen tension. However, at dissolved oxygen tensions below 18 mmHg a few large isodiametric cells were observed, and at oxygen tensions below 3.5 mmHg free conidia appeared in the medium (although differentiated conidiophores were ...

Arterial blood and expired gas samples were taken from 20 patients before operation and on the first day after upper abdominal surgery. After operation the patients were studied breathing air and also breathing 35% oxygen from a venturi-type mask. Preoperative Pao2 with age was exaggerated by operation. Pao2 after operation was closely related to, and lower than, the preoperative value. The pos...

[1] We estimated the air‐sea gas transfer velocity for oxygen using 3 consecutive years (September 2003 to August 2006) of high‐quality oxygen measurements from profiling floats in the central Labrador Sea. Mixed layer oxygen concentrations exhibit strong seasonality characterized by biologically and thermally driven evasion during spring/ summer and invasion during fall/winter caused by coolin...

High mountain disease (HMD) is also known as brisket disease, high altitude disease, dropsy or big brisket to the rancher and is a common condition in cattle raised on ranches at high altitudes (>5,000ft) in Colorado and its surrounding states. Although the proportion of oxygen in the air is the same at all altitudes, the atmospheric pressure is not. This means that as altitude increases the ox...

Background: Cerebral air embolism is defined as symptoms and signs after occlusion of cerebral arteries by intracerebral air bubble influx. There have been reports of many cases during an invasive procedure. Herein, we report a case of air embolism after thyroid biopsy. Case Report: A 70-year-old female visited our emergency room with right hemiparesis and global aphasia after thyroid biopsy. B...

We administered hyperbaric oxygen or air in a double-blind prospective protocol to 39 patients with ischemic cerebral infarction. We interrupted the study when we noticed what appeared to be a trend favoring the air-treated patients, whose neurological deficits were less severe (mean +/- SEM score on graded neurological examination: air, 25.6 +/- 4.9; oxygen, 34.5 +/- 7.5) and whose infarcts we...

Recent developments in the application of controllable air ionization processes that apply dielectric-barrier discharge devices to generate nonthermal plasmas have led to applications for chemical and biological decontamination in indoor air environments. These include significant reductions in airborne microbials, neutralization of odors, and reductions of specific volatile organic compounds (...