Search results for "sage"

Identità, Flessibilità e Sostenibilità per un nuovo Social Housing - Identity, Flexibility and Sustainability for the new Social Housing

2012

L’attuale emergenza abitativa per le classi meno abbienti e le esperienze degli ultimi sessant’anni maturate in Italia per l’Edilizia Residenziale Pubblica impongono nuove riflessioni sull’abitare. L’elevato costo per il risanamento e la rifunzionalizzazione dei quartieri di E.R.P., l’assenza di servizi che li ha trasformati in quartieri dormitorio, ci portano a ripensare nuovi ambiti urbani come luoghi dotati di senso e d’identità in cui prevedere spazi di relazione e servizi di vicinato. Inoltre, le dinamiche sociali, economiche e politiche degli ultimi anni hanno modificato non solo i modi di vita, ma anche la tipologia di utenti finali, sempre più sensibili alla qualità del prodotto e a…

Images et passages à l'époque médiévale (compte rendu)

2009

Formaciones sociales y opresión en Marx

2018

The text explains the difference between Marx?s concept of «oppression» and others as «coercion» by Durkheim or «domination» by Weber. The article then establishes, in a methodical way, the centrality of a passage from Capital, in which three different theories on «oppression» appear. It?s explained that two of them are rather a philosophical antinomy. The other, relative to the heteronomy of social time, can be completed by defining the heteronomy of social space, which gives it analytical virtuality. Some examples are given.

Modifications over years of volatile compounds and agronomic features in a Sicilian Clary sage biotype.

2006

Clary sage is a biennial native to Mediterranean area, spontaneous and often ubiquitous in many environments of inner Sicily. The large white-pinkish flowers are used, besides for ornamental purposes, for extracting a strongly-scented essential oil largely used by perfume industries. This work has been carried out with the aim to observe over several years the behaviour of a Sicilian Clary sage biotype, grown on experimental plots laid out in Sparacia (Cammarata - AG - Sicily). For this purpose seeds of Clary sage collected from a wild population growing in Pietraperzia (EN) were sown in experimental plots each year for seven consecutive years (from 1998 to 2005). Since Clary sage is a bien…

La circulation et l'usage des supports enregistrés dans les musiques populaires en Ile de France

2007

Ce rapport est consacré à la façon dont les jeunes musicien-n-e-s apprennent et pratiquent les musiques populaires et plus particulièrement au rôle des supports enregistrés et des machines de reproduction sonore. Il est divisé en deux parties.D'abord l'exposé préliminaire des prémisses historiques et sociologiques qui ont servi de socle à cette recherche (1. Les instructeurs non-humains)La deuxième partie rend compte d'une enquête de terrain menée en Ile de France et, de façon plus limitée, dans l'agglomération nantaise en 2006 et 2007 (2. L'enquête en Ile de France)

Validation of a method for neutron dosimetry and spectrometry using neutron activation of metal discs

2009

A technique for neutron dosimetry and spectrometry based on neutron activation of different metal discs has been studied. After exposure to a neutron field, the radionuclides produced in the discs are detected using low-level gamma-ray spectrometry and the neutron spectrum is obtained using a spectrum unfolding technique. In order to validate the method, irradiation was performed in a well-characterised (252)Cf neutron reference field. Furthermore, the detector was used to determine the neutron fluence rate and spectrum at a storage place for MOX nuclear fuel. The results of the two measurements are reported and discussed.

Combined TL and 10B-alanine ESR dosimetry for BNCT

2004

The dosimetric technique described in this paper is based on electron spin resonance (ESR) detectors using an alanine-boric compound acid enriched with 1 0 B, and beryllium oxide thermoluminescent (TL) detectors; with this combined dosimetry, it is possible to discriminate the doses due to thermal neutrons and gamma radiation in a mixed field. Irradiations were carried out inside the thermal column of a TRIGA MARK II water-pool-type research nuclear reactor, also used for Boron Neutron Capture therapy (BNCT) applications, with thermal neutron fluence from 10 9 to 10 1 4 n t h cm - 2 . The ESR dosemeters using the alanine-boron compound indicated ESR signals about 30-fold stronger than those…

EPR/ALANINE PELLETS WITH LOW Gd CONTENT FOR NEUTRON DOSIMETRY

2013

This paper reports on results obtained by electron paramagnetic resonance (EPR) measurements and Monte Carlo (MC) simulation on a blend of alanine added with low content of gadolinium oxide (5 % by weight) to improve the sensitivity to thermal neutron without excessively affecting tissue equivalence. The sensitivity is enhanced by this doping procedure of more an order of magnitude. The results are compared with those obtained with the addition of boric acid (50 % by weight) where boron is in its natural isotopic composition in order to produce low-cost EPR dosemeters. The gadolinium addition influences neutron sensitivity more than the boron addition. The presence of additives does not sub…

Alanine blends for ESR measurements of thermal neutron fluence in a mixed radiation field

2007

In this paper, the results of a study on the electron spin resonance (ESR) dosimetry to measure thermal neutron fluence in a mixed radiation field (neutron and photons) are presented. The ESR responses of alanine dosemeters with different additives are compared. In particular, the (10)B-acid boric and the Gd-oxide were chosen to enhance the sensitivity of alanine dosemeters to thermal neutrons. Irradiations were carried out inside the thermal column of the TAPIRO reactor of the ENEA center, Casaccia Rome. The main results are a greater neutron sensitivity and a smaller lowest detectable fluence for the dosemeters with gadolinium than for dosemeters of alanine with (10)B, which is well known…

Dose calculation in biological samples in a mixed neutron-gamma field at the TRIGA reactor of the University of Mainz

2010

To establish Boron Neutron Capture Therapy (BNCT) for non-resectable liver metastases and for in vitro experiments at the TRIGA Mark II reactor at the University of Mainz, Germany, it is necessary to have a reliable dose monitoring system. The in vitro experiments are used to determine the relative biological effectiveness (RBE) of liver and cancer cells in our mixed neutron and gamma fi eld. We work with alanine detectors in combination with Monte Carlo simulations, where we can measure and characterize the dose. To verify our calculations we perform neutron fl ux measurements using gold foil activation and pin-diodes . Material and methods . When L- α -alanine is irradiated with ionizing …