This letter challenges the concept that the metallic iron (Fe) surface contributes directly to the process of micro-organism inactivation in aqueous solutions. It is shown that any antimicrobial properties of Fe is related to the cycle of expansion/contraction accompanying aqueous iron corrosion. This demonstration corroborates the concept that aqueous contaminant removal in the presence of Fe ...

RATIONALE Both atopy and smoking are known to be associated with increased bronchial responsiveness. Fraction of nitric oxide (NO) in the exhaled air (FE(NO)), a marker of airways inflammation, is decreased by smoking and increased by atopy. NO has also a physiological bronchodilating and bronchoprotective role. OBJECTIVES To investigate how the relation between FE(NO) and bronchial responsiv...

It is difficult to make an early identification of which children with recurrent wheezing will develop asthma in the following years. The Asthma Predictive Index (API) is a questionnaire based on clinical and laboratory parameters used for this end. The measurement of fractional exhaled nitric oxide (FE NO) has been used as a marker of eosinophilic airway infammation in asthma patients. Objecti...

The emerging picture of Earth's deep interior from seismic tomography indicates more complexity than previously thought. The presence of lateral anisotropy and heterogeneity in Earth's mantle highlights the need for fully anisotropic elasticity data from mineral physics. A breakthrough in high-frequency (gigahertz) ultrasound has resulted in transmission of pure-mode elastic shear waves into a ...

The ability of Pelobacter carbinolicus to oxidize electron donors with electron transfer to the anodes of microbial fuel cells was evaluated because microorganisms closely related to Pelobacter species are generally abundant on the anodes of microbial fuel cells harvesting electricity from aquatic sediments. P. carbinolicus could not produce current in a microbial fuel cell with electron donors...

Tetrathiepin, Pentathiocin. Tetrathiepin-S-oxide, Tetrathiocin-S-oxide, Platinum C om plexes 5H -B en zo[f]-l,2 ,3 ,4-tetrath iep in-l-oxide 5 and l,2-B enzo-4,5.6,7-tetrath iocin-4-oxide 6 have been prepared by oxidation of the corresponding tetrasulfides 3 and 4, respectively using w C P B A in dichlorom ethane. The unstable bright yellow crystals o f 5 were characterized by an X-ray structur...

An experimental program has been conducted to determine the effect of phosphorus on the corrosion and passivation behavior of Fe-Cr-P alloys. Chemically homogeneous 60 nm films of Fe-lOCr-xP (x from 0 to 35 at.%) were prepared by multilayer evaporation followed by ion beam mixing with Kr + ions. Films with a phosphorus content of at least 25 at.!% were found to be entirely amorphous, while film...

Effects of Fe-chlorophyllin on the growth of wheat root were investigated in this study. We found that Fe-chlorophyllin can promote root growth. The production of nitric oxide in wheat root was detected using DAF-2DA fluorescent emission. The intensity of fluorescent in the presence of 0.1 mg/L Fe-chlorophyllin was near to that observed with the positive control of sodium nitroprusside (SNP), t...

BACKGROUND Exhaled nitric oxide (FE(NO)) is raised in asthmatic children, but there are inconsistencies in the relationship between FE(NO) and characteristics of asthma, including atopy, increased airway responsiveness (AR), and airway inflammation. The aim of this study was to investigate the relationship between FE(NO) and asthma, atopy, and increased AR in children. METHODS One hundred and...

UNLABELLED Exhaled nitric oxide has been extensively investigated as a non-invasive marker of airway inflammation. Some authors have suggested that morning FE(NO) in obstructive sleep apnea syndrome (OSAS) patients is elevated due to inflammation of upper airways, while others have not found any differences between patients and healthy subjects. The purpose of this study was to analyze concentr...