Search results for " IR"
showing 10 items of 1350 documents
Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC
2020
The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties.
Technical English for agriculture
2021
As the world goes global, the agricultural business needs to move across frontiers and oceans. Food, raw and processed, is regularly transported across continents. As space is no longer a limit for food trade and human nutrition, language cannot represent a barrier to this continuous exchange. In the last 60 years, English has been taking a foothold as the primary language for world trade and the exchange of agricultural goods is no exception. Agricultural sciences embrace a large number of disciplines, from botany to environmental physiology, from soil science to meteorology, from plant propagation to cultural management, from soil management to pest control, from field crops to animal husb…
Experimental and theoretical studies on corals. I. Toward understanding the origin of color in precious red corals from Raman and IR spectroscopies a…
2010
An attempt to explain the origin of the vivid red color in precious pink and red corals was undertaken. Raman and IR spectroscopies were applied to characterize white, pink and red corals. The position of the Raman signal near 1500 cm−1 of some corals and pearls was associated by several authors with the presence of the mixture of all‐trans‐polyenic pigments, containing 6–16 conjugated CC bonds or β‐carotenoids. This hypothesis was examined theoretically by performing extensive B3LYP‐DFT calculations of vibrational spectra of the model polyenic compounds. The B3LYP/6‐311++G** predicted positions of the dominating Raman mode depend on the number of CC units (Cn parameter) and can be accura…
Preparation of tungstophosphoric acid/cerium-doped NH2-UiO-66 Z-scheme photocatalyst: a new candidate for green photo-oxidation of dibenzothiophene a…
2021
International audience; The goal of this study was to introduce an effective visible-light induced photocatalytic system with a good ability for photocatalytic oxidative desulfurization (PODS) and denitrogenation (PODN) using molecular oxygen (O2) as an oxidant. In this regard, tungestophosphoric acid (PW12) was supported onto cerium-doped NH2-UiO-66 (PW12/Ce-NUiO-66) and employed for the photo-oxidation of dibenzothiophene (DBT) and quinoline (Qu). Herein, using cerium (Ce) as a “mediator” facilitated the separation of charge carriers, while NH2-UiO-66 remarkably enhanced the surface area with plentiful adsorption sites and shifted the adsorption edge of PW12to the visible region. The sum …
Il volontariato religioso nell'ordinamento giuridico italiano (l'incompiuta integrazione tra società civile e società religiosa)
2011
Espropriazione, occupazione acquisitiva e funzione sociale della proprietà
2012
Koulupsykologien psykologisen työstä irrottautumisen yhteydet unen laatuun ja palautumisen kokemukseen päiväkirjatutkimuksen valossa
2015
Tutkimuksessa selvitettiin koulupsykologien viikonlopun aikaisen psykologisen työstä irrottautumisen yhteyksiä unen laatuun ja palautumisen kokemukseen. Lisäksi tutkittiin eroavatko koulupsykologien psykologinen työstä irrottautuminen, unen laatu ja palautumisen kokemus taustatekijöiden mukaan (sukupuoli, ikä, työsuhteen muoto, työtunnit, oppilasmäärä, kotona asuvat lapset). Kolme viikkoa kestäneen päiväkirjatutkimuksen kyselyt toteutettiin kolmena peräkkäisenä perjantaina ja niitä seuranneina kolmena peräkkäisenä maanantaina keväällä 2014. Perjantaisin kysyttiin työviikon aikaista unen laatua, kun taas maanantaisin kysyttiin viikonlopun aikaista psykologista irrottautumista, unen laatua ja…
Toiminko sääntöjen tai arvojeni vastaisesti? : koulupsykologien kokemien eettisten dilemmojen ja niiden vatvomisen yhteys työstä palautumiseen
2015
Tavoite: Tutkimuksemme tarkoituksena on selvittää, eroaako koulupsykologien viikonlopun aikainen työstä palautuminen heidän viikon aikana kokemiensa eettisten dilemmojen ja niiden vatvomisen suhteen. Menetelmät: Päiväkirjatutkimukseen osallistui 133 koulupsykologia. He täyttivät peruskyselyn (huhtikuu 2014) ja sen jälkeen päiväkirjakyselyn, joka toteutettiin kolmena perättäisenä perjantaina ja maanantaina (toukokuu 2014). Perjantaisin kysyttiin sääntöjen ja arvojen vastaiseen toimintaan liittyvien eettisten dilemmojen kokemiseen ja vatvomiseen sekä unenlaatuun liittyviä asioita. Maanantaisin kysyttiin viikonlopun aikaista unenlaatua erikseen jokaiselta viikonlopun yöltä sekä psykologista ir…
Rac1-Regulated Endothelial Radiation Response Stimulates Extravasation and Metastasis That Can Be Blocked by HMG-CoA Reductase Inhibitors
2011
Radiotherapy (RT) plays a key role in cancer treatment. Although the benefit of ionizing radiation (IR) is well established, some findings raise the possibility that irradiation of the primary tumor not only triggers a killing response but also increases the metastatic potential of surviving tumor cells. Here we addressed the question of whether irradiation of normal cells outside of the primary tumor augments metastasis by stimulating the extravasation of circulating tumor cells. We show that IR exposure of human endothelial cells (EC), tumor cells (TC) or both increases TC-EC adhesion in vitro. IR-stimulated TC-EC adhesion was blocked by the HMG-CoA reductase inhibitor lovastatin. Glycyrr…