Four catalysts—1%Pd-2%Mn/γ-Al2O3, 1%Pd/γ-Al2O3, 2%Mn/γ-Al2O3 and γ-Al2O3—were synthesized via a sol–gel method characterized using various techniques to evaluate their physicochemical, textural, surface acidic properties. They were used in the catalytic transformation of ozone nitrogen oxides situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) analysis. Different consecuti...

BACKGROUND Fluctuations of estradiol and progesterone levels caused by the menstrual cycle worsen asthma symptoms. Conflicting data are reported in literature regarding pro and anti-inflammatory properties of estradiol and progesterone. METHODS Female Wistar rats were ovalbumin (OVA) sensitized 1 day after resection of the ovaries (OVx). Control group consisted of sensitized-rats with intact ...

This report describes the experimental and modeling work performed to evaluate porous cathodes for the electrochemical reduction of nitrates and nitrites in liquid wastes. The experiments were done using the MPt cell with two different porous cathodes: nickel foam and TySARm SBS. The experimental results are compared with each other and to those obtained with a planar nickel cathode. The result...

PURPOSE To elucidate if the differences found in the physico-chemical and rheological behaviour of Hyaluronic Acids result in different in vivo activity. For this purpose two Hyaluronic Acids (HA), HA-1 and HA-2, with similar molecular weight but different percentage of concentration variation, were compared through an osteoarthritis model. METHODS AND MATERIALS Osteoarthritis was induced in ...

Polarization measurements in the Raman spectra of molten sodium nitrite have shown that the reorientational line widths of the vt and v2 bands (both of the A1 symmetry type) of N 0 2 are different. Possible reasons are discussed. Also, the line widths of N 0 2 for various molten nitrites are found to depend on R " 4 , the cloasest approach distance in the melt, and on Z, the cation charge numbe...