Search results for " radical"

Phenolic Profiles, Antioxidant and Anti-Inflammatory Activities of Hydrodistillation Wastewaters from Five Lamiaceae Species

2022

Distillation is the most widely used method to obtain an essential oil from plant material. The biomass used in the process is returned as a solid residue together with variable amounts of water rich in water-soluble compounds, which currently are not addressed to any further application. The scope of this work was to evaluate the phytochemical composition of wastewaters coming from hydrodistillation (DWWs) of five aromatic plants belonging to the Lamiaceae family, and to assess their in vitro antioxidant and anti-inflammatory activities. The phenolic profiles of the DWWs were determined by HPLC-DAD and HPLC-ESI/MS. Free radical scavenging ability, oxygen radical antioxidant capacity and su…

Giuseppe Cocchiara, il fascismo e il razzismo

2021

In questo saggio viene ricostruito il rapporto tra Giuseppe Cocchiara e il fascismo. L’antropologo visse in pieno la sua formazione culturale all'interno del regime al quale aderì con convinzione e slancio, militando sempre nelle sue fazioni più radicali, condividendone fedelmente le scelte più tragiche come la guerra d’Etiopia, sottoscrivendo le leggi razziali, impegnandosi nella seconda guerra mondiale con le armi culturali dell’antisemitismo e della lotta senza tregua contro la democrazia. Così quando, come in un «mondo alla rovescia», sconfitto il fascismo sotto il peso di un’umiliante e sanguinosa disfatta, saranno proprio gli odiati inglesi a valorizzarne la statura intellettuale e la…

High-spectral-resolution Fabry-Pérot interferometers overcome fundamental limitations of present volcanic gas remote sensing techniques

2023

Remote sensing (RS) of volcanic gases has become a central tool for studying volcanic activity. For instance, ultraviolet (UV) skylight spectroscopy with grating spectrographs (GS) enables SO2 (and, under favourable conditions, BrO) quantification in volcanic plumes from autonomous platforms at safe distances. These measurements can serve volcanic monitoring and they cover all stages of volcanic activity in long measurement time series, which substantially contributes to the refinement of theories on volcanic degassing. Infrared (IR) remote sensing techniques are able to measure further volcanic gases (e.g., HF, HCl, CO2, CO). However, the employed Fourier transform spectrometers (FTSs) are…

Structures and EPR spectra of binary sulfur−nitrogen radicals from DFT calculations

2007

he scattered electron paramagnetic resonance (EPR) spectroscopic data for binary sulfur–nitrogen (S,N) radicals have been compiled and critically assessed.Many of these are inorganic rings or cages.For each species, possible equilibrium structures in the gas phase and the EPR hyperfine coupling (hfc) constants have been calculated with DFT using the B3LYP functional and basis sets of triple-ζ (or better) quality.Good agreement is obtained between calculated and measured values for the well characterized [S3N2]+radical dot, a planar π-radical for which the s-component of the orbitals is likely to be reasonably independent of minor geometrical changes between gas-phase and condensed-phase sta…

Electrochemical and Electronic Structure Investigations of the [S3N3]• Radical and Kinetic Modeling of the [S4N4]n/[S3N3]n (n = 0, −1) Interconversion

2009

Voltammetric studies of S4N4 employing both cyclic (CV) and rotating disk (RDE) methods in CH2Cl2 at a glassy carbon electrode reveal a one-electron reduction at −1.00 V (versus ferrocene/ferrocenium), which produces a second redox couple at −0.33 V, confirmed to be the electrochemically generated [S3N3]− by CV studies on its salts. Diffusion coefficients (CH2Cl2/0.4 M [nBu4N][PF6]) estimated by RDE methods: S4N4, 1.17 × 10−5 cm2 s−1; [S3N3]−, 4.00 × 10−6 cm2 s−1. Digital simulations of the CVs detected slow rates of electron transfer for both couples and allowed for a determination of rate constants for homogeneous chemical reaction steps subsequent to electron transfer. The common paramet…

Inclusive Decision-making and Campaign: The Participation of Second Generation Migrants for Preventing Radicalization

2019

This paper deals with the analysis of the first results of Oltre project (ISF - DG Migration and Home Affairs, EU) funding for preventing the radicalization of the second-generation of migrants. The non-standard field research was intertwined with online social network profiles investigation. We present the off-line research results. Starting from the different dimensions of the risk of radicalization proposed by the kaleidoscopic overview of risk factors (Sieckelinck and Gielen 2018: 5; Ranstorp 2016), we created a topic guide for the indepth qualitative interviews collecting 42 interviews of 2G youths (18-30 years) in 7 Italian towns, interviewing also several privileged testimonies. Then…

Trattamento dell'incontinenza urinaria post-prostatectomia di grado severo mediante l'uso di sling tipo "AdVance"

2011

Stable spirocyclic neutral radicals: aluminum and gallium boraamidinates

2005

Stable dark red (M = Al) or dark green (M = Ga) neutral radicals {[PhB(μ-NtBu)2]2M}˙ are obtained by the oxidation of their corresponding anions with iodine, and EPR spectra supported by DFT calculations show that the spin density is equally delocalized over all four nitrogen atoms in these spiroconjugated systems. peerReviewed

Modeling Heterogeneous copolymerization in scCO2

2008

Synthesis of new hybrid 1,4-thiazinyl-1,2,3-dithiazolyl radicals via Smiles rearrangement

2017

The condensation reaction of 2-aminobenzenethiols and 3-aminopyrazinethiols with 2-amino-6-fluoro-N-methylpyridinium triflate afforded thioether derivatives that were found to undergo Smiles rearrangement and cyclocondensation with sulphur monochloride to yield new hybrid 1,4-thiazine-1,2,3-dithiazolylium cations. The synthesized cations were readily reduced to the corresponding stable neutral radicals with spin densities delocalized over both 1,4-thiazinyl and 1,2,3-dithiazolyl moieties. peerReviewed