The pulmonary associations of inflammatory bowel disease (IBD) are poorly characterized. The clinical, physiological and high-resolution computed tomographic thorax characteristics of the lung disease in patients with IBD presenting with respiratory symptoms are described. Detailed clinical information was obtained and standard pulmonary physiological tests and thorax high-resolution computed t...

BACKGROUND Small airways are regarded as the elective anatomic site of obstruction in most chronic airway diseases. Expiratory computed tomography (CT) is increasingly used to assess obstruction at this level but there is no consensus regarding the best quantification method. We aimed to evaluate software-assisted CT quantification of air trapping for assessing small airway obstruction and dete...

background and purpose: airborne fungi are one of the most important agents responsible for triggering allergic reactions such as rhinitis and severe asthma. this study was conducted to analyze and monitor the prevalence and distribution patterns of atmospheric fungal aerosols in the air of qazvin during winter of 2012. materials and methods: in the current descriptive study, the incidence and ...

Reduced sulfur compounds are considered to be important odorants from pig production due to their low odor threshold values and low solubility in slurry. The objective of the present study was to investigate the use of a portable method with a single silica gel column for trapping/separation coupled with chemiluminescence detection (SCTS-CL) for measurement of methanethiol and dimethyl sulfide ...

Mesoscale air quality under stagnant synoptic cold season conditions in the Lake Powell area is characterized through climatological, topographical and numerical studies. Using a synoptic climatological classification scheme, it is found that during the winter this region is dominated by stagnant conditions associated with slow-moving high pressure systems. Using topographic analyses, the Lake ...

[1] Key steps leading to the uptake of trace gases into atmospheric cloud ice particles include gas phase diffusion of trace gas molecules toward growing ice crystals and the kinetics of molecular interactions at the ice surfaces. In the case of nitric acid, laboratory studies and airborne field observations indicate uptake in growing ice films and cirrus ice particles above the thermodynamic s...

We report an approach for remote and rapid fabrication of a broadband low-reflectivity black silicon surface by ablating crystalline silicon with femtosecond laser filaments in air. Porous microstructures on the processed silicon surface are formed, resulting in a significantly enhanced light trapping efficiency in a broadband (UV-IR) spectral range. It is found that the air filament can signif...

We present ultra-fast homogeneous mixing inside a microfluidic channel via single-bubble-based acoustic streaming. The device operates by trapping an air bubble within a "horse-shoe" structure located between two laminar flows inside a microchannel. Acoustic waves excite the trapped air bubble at its resonance frequency, resulting in acoustic streaming, which disrupts the laminar flows and trig...

Surfaces facing the gap between W tiles of ring limiter tokamak T-10 were analyzed after decommissioning using LIBS, SEM/EDA, XRD, TDS, and NRA techniques. Gaps with width 5 mm 0.1 nearly completely covered to their full depths 22 15 mm, respectively, by a deposited film. The film was formed mainly deposition lithium that came from Li transformed in air Li2CO3 Li2O. Carbon volatile hydrocarbons...