0000000000023627
AUTHOR
Giuseppe Sarno
Late-asthma onset and associated factors
Although asthma is usually considered to originate in childhood, adult-onset is being increasingly reported. Aim: to assess factors associated to early- (<18 yrs) and late-onset (≥18 yrs) asthma. Methods: Data from a web-based Italian severe/uncontrolled asthma (SUA) registry (released in 2014), including 577 SUA subjects from 6 clinical and epidemiological Italian centres (Pisa1, Perugia, Ancona, Verona, Palermo, Pisa2). Results: 77.5% of SUA subjects had a late-onset asthma. Among subjects with early-onset asthma there were higher frequencies of allergic asthma (92.1 vs 76.4%), asthma familiarity (52.8 vs 42.8%), seasonal symptoms (51.3 vs 27.6%), active smoking habits (8.5 vs 4.4%) and u…
Keggin heteropolyacid supported on TiO2 used in gas-solid (photo)catalytic propene hydration and in liquid-solid photocatalytic glycerol dehydration
Abstract (Photo)catalytic propene hydration to 2-propanol and glycerol dehydration to acrolein were carried out by using Keggin heteropolyacids (HPAs) supported on TiO 2 . Binary materials have been prepared by impregnation of H 3 PW 12 O 40 , H 3 PMo 12 O 40 and H 4 SiW 12 O 40 , on TiO 2 Evonik P25. Moreover, a binary material consisting of H 4 SiW 12 O 40 and TiO 2 was prepared via a hydrothermal treatment and tested for the same reactions. All the materials were characterized by X-ray diffraction (XRD), scanning electron microscopy observations (SEM) coupled with energy dispersive X-ray (EDX) measurements, diffuse reflectance spectroscopy (DRS), Raman spectroscopy and Fourier transform …