Search results for "BEC"

An Approach on the Hydrogen Absorption in Carbon Black after Gamma Irradiation

2013

In this work, different samples of an industrial carbon black are used to study the hydrogen intake from an over pres-surized atmosphere and its changes due to alteration of its level of crystallinity produced by ¿-irradiation. The monitor-ing of the hydrogen adsorption was made by means of thermogravimetric analysis and by measurements of some elec-trical parameters as the Seebeck coefficient. X-ray diffraction shows that the irradiation diminishes the level of crystal-line perfection. These results show interesting possibilities to use carbon black as cheap hydrogen absorbers.

Vita et processus S. Thomae Cantuariensis super libertate ecclesiastica

1495

Sig. a-l8, m6, A4 L. gòt. - 2 tam. - 2 col. - 45 lín. - Esp. o min. p. inic. - Capçaleres

A performative paradigm for post-qualitative inquiry

2021

In this article, the authors explore and contribute to producing a performative research paradigm where post-qualitative as well as artistic research might dwell and breathe. Entering a thread of discussion that started with Haseman’s A manifesto for performative research in 2006, and building on their own friction-led research processes at the edges of qualitative research, the authors plug in with performativity, non-representational theories and methodologies, post-qualitative inquiry and post approaches. A performative paradigm for post-qualitative inquiry is proposed, where knowledge is viewed as knowledge-in-becoming as the constant creation of difference through researcher entanglem…

PHEA-graft-polybutylmethacrylate copolymer microparticles for delivery of hydrophobic drugs.

2012

Abstract Polymeric microparticles encapsulating two model hydrophobic drugs, beclomethasone dipropionate (BDP) and flutamide (FLU) were prepared by using the high pressure homogenization-solvent evaporation method starting from a oil-in-water emulsion. For the preparation of polymeric microparticles a α,β-poly(N-2-hydroxyethyl)- d , l -aspartamide (PHEA) graft copolymer with comb like structure was properly synthesized via grafting from atom transfer radical polymerization (ATRP) technique, by using two subsequent synthetic steps. In the first step a polymeric multifunctional macroinitiator was obtained by the conjugation of a proper number of 2-bromoisobutyryl bromide (BIB) residues to the…

Tommaso Natale

2010

Nella voce sono descritte la vita e le opere del Marchese di Monterosato Tommaso Natale (1733-1819), noto soprattutto per le sue idee in materia penalistica, in cui si ravvisano interessanti collegamenti con lo spirito illuminista del tempo. Le sue analisi, in non poche occasioni svolte in chiave filosofica e politica, denotano significative anticipazioni e convergenze con l'opera "Dei delitti e delle pene" di Cesare Beccaria.

Introduzione a Riflessioni politiche intorno all’efficacia e necessità delle pene

2023

L’importanza storica e ideologica dell’opera "Riflessioni politiche intorno all’efficacia e necessità delle pene" consiste nel fatto di rappresentare uno dei pochi interventi miranti a riformare la legislazione penale del tempo. Le analisi e proposte di Tommaso Natale sono per molti versi precorritrici di successive tendenze garantiste di diritti e dignità della persona sul piano della procedura e della sanzione penale. Tale capacità interpretativa è agevolata anche dalla sua lettura filosofica di questioni pertinenti alla politica e al diritto.

Sintesi di nuovi derivati 1,2,5-ossadiazolici della Rebeccamicina ad attività antitumorale.

Quantitative structural analysis of trabecular alveolar bone in the mandible by multidetector computed tomography: Differences according to tooth pre…

2019

Background and objective: There is a lack of quantitative measures of the quality of alveolar trabecular bone, an important factor in implantology. This study aimed to develop a method of objectively assessing the quality of trabecular bone by means of image processing and structural analysis of multidetector computed tomography images and to establish differences between tooth types and tooth presence/absence. Materials and methods: We analyzed 20 patients who underwent multidetector computed tomography to evaluate mandibular bone and tooth positioning. Image analysis included automatic segmentation of the mandible, obtainment of sections perpendicular to the dental arch, and structural an…

Translation as a measure of literary domination: the case of Quebec literature translated in Spain (1975-2004)

2010

Recent literary manifestos claim that “the center is no longer the center” (Le Devoir 2007). Indeed, it is generally admitted that Quebec literature has been more or less independent from the French field since the 1970’s. However, the analysis of the translation of this literature –its international circulation, and the almost compulsory stopover in France before being selected for translation by the agents of other literary fields– reveals various mechanisms through which the French symbolic center still exerts its power. Drawing on the application of Pierre Bourdieu’s sociology of culture to the international space (Casanova 1999; Sapiro 2007, 2008; etc.), this article argues that transl…

Beclomethasone dipropionate and formoterol reduce oxidative/nitrosative stress generated by cigarette smoke extracts and IL-17A in human bronchial ep…

2013

Interleukin-17A (IL-17A), cigarette smoke and oxidative/nitrosative stress are involved in inflammatory airway diseases, and the mechanisms behind these processes are still poorly understood. We investigated whether recombinant human IL-17A (rhIL-17A), in combination with cigarette smoke extracts (CSE), increases the levels of inducibile nitric oxide synthase (iNOS), reactive oxygen species, nitrotyrosine (NT) and the activation of signal transducer and activator of transcription 1 (STAT-1) in normal human bronchial epithelial cells (16HBE). The effect of beclomethasone dipropionate (BDP), formoterol and their combination was also evaluated. We demonstrated that rhIL-17A or CSE alone increa…