Search results for "CD"
showing 10 items of 4072 documents
Direct Measurement of Mammographic X-Ray Spectra with a Digital CdTe Detection System
2012
In this work we present a detection system, based on a CdTe detector and an innovative digital pulse processing (DPP) system, for high-rate X-ray spectroscopy in mammography (1–30 keV). The DPP system performs a height and shape analysis of the detector pulses, sampled and digitized by a 14-bit, 100 MHz ADC. We show the results of the characterization of the detection system both at low and high photon counting rates by using monoenergetic X-ray sources and a nonclinical X-ray tube. The detection system exhibits excellent performance up to 830 kcps with an energy resolution of 4.5% FWHM at 22.1 keV. Direct measurements of clinical molybdenum X-ray spectra were carried out by using a pinhole…
Effective charge from lattice QCD
2020
Using lattice configurations for quantum chromodynamics (QCD) generated with three domain-wall fermions at a physical pion mass, we obtain a parameter-free prediction of QCD's renormalisation-group-invariant process-independent effective charge, $\hat\alpha(k^2)$. Owing to the dynamical breaking of scale invariance, evident in the emergence of a gluon mass-scale, this coupling saturates at infrared momenta: $\hat\alpha(0)/\pi=0.97(4)$. Amongst other things: $\hat\alpha(k^2)$ is almost identical to the process-dependent (PD) effective charge defined via the Bjorken sum rule; and also that PD charge which, employed in the one-loop evolution equations, delivers agreement between pion parton di…
School principals’ point of view on pupils’ participation
2021
La participación es un derecho que los niños y niñas deben tener la oportunidad de ejercer y la escuela es un escenario idóneo para que el alumnado pueda hacer oír su voz exponiendo ideas, tomando decisiones y formulando propuestas. Con el objetivo de detectar las opciones del alumnado de participar en el centro y apuntar vías para maximizarlas efectuamos un estudio a partir de un cuestionario elaborado ad hoc dirigido a todos y todas los directores y directoras de escuelas de Cataluña. En concreto, participaron 684 y los resultados indican que los niños y las niñas no solo opinan en clase, sino que toman decisiones cuando trabajan en grupo, en relación con la convivencia o votando sus prop…
La residencia de las personas físicas como nexo de la tributación de la renta en los ordenamientos jurídicos español y británico: la especial inciden…
2013
Nosotros hablaremos tanto de residencia ordinaria, o con carácter ordinario, como de residencia habitual, por considerarlos dos términos técnicos distintos. Esta distinción está avalada por la utilización tanto en la legislación como en la jurisprudencia británica de ambos términos para referirse a dos conceptos diferentes –aunque relacionados-, como puntualizaremos . A pesar de que, dada la controversia existente sobre la relación entre ambos términos, algunos autores, como McCLEAN y BEEVERS admiten que son sinónimos o por lo menos de gran similitud, lo que en nuestra opinión tampoco aporta claridad al asunto. Junto a estos conceptos, el ordenamiento jurídico británico añadirá un tercer co…
First results of the experiment to search for 2β decay of 106Cd with the help of 106CdWO4 crystal scintillators
2011
An experiment to search for 2β processes in 106Cd with the help of 106CdWO4 crystal scintillator (mass of 215 g), enriched in 106Cd up to 66 %, is in progress at the Gran Sasso National Laboratories of the INFN (Italy). After 1320 h of data taking, limits on double beta processes in 106Cd have been established on the level of 1019 − 1020 yr, in particular (all the results at 90 % C.L.): T1/2(0ν2ε) > 3.6 · 1020 yr, T1/2(2νεβ+) > 7.2 · 1019 yr, and T1/2(2ν2β+) > 2.5 · 1020 yr. Resonant 0ν2ε processes have been restricted as T1/2(0ν2K) > 1.4 · 1020 yr and T1/2(0νLK) > 3.2 · 1020 yr. A possible resonant enhancement of the 0ν2ε processes is estimated in the framework of the QRPA approach.
Francesco Maria da Lecce, Dittionario italiano-albanese (1702), botim kritik, me hyrje dhe fjalësin shqip.
2009
Il volume comprende l’edizione critica del manoscritto inedito del 1702 con il dizionario italiano-albanese del missionario francescano Francesco Maria da Lecce. Con un lessico albanese codificato di circa 11.200 unità lessicali, quest’opera assume una fondamentale importanza per lo studio della storia della lingua albanese. L’edizione si articola in tre parti. La prima contiene uno studio preliminare che, oltre a una ricostruzione della vita dell’autore e della storia dell’opera, illustra i criteri ecdotici adoperati per la restituzione del testo, di cui interpreta con un’analisi approfondita gli aspetti linguistici. La seconda parte include il testo critico trascritto dall'alfabeto origin…
'Misunderstanding a Gloss. Past and Present'
1993
Expenditure on Education in the Czech Republic and Poland Compared to OECD Countries
2022
The education system, its quality and the resulting education of individuals is a constantly highly inflected term in each of the developed countries of the world. The measurement of educational outcomes is highly debatable in the long term, as there is no agreement on specific measurable criteria across the entire educational system, which in the developed countries of the world includes both private and publicly established educational institutions. The outputs and quality of the entire educational system usually become apparent only after a certain period (usually several years to decades) and is dependent on several factors. However, it cannot be done without enough financial resources,…
Oral lichen planus after certolizumab pegol treatment in a patient with Crohn's disease
2011
Dear Sir , Lichen planus (LP) is a relatively uncommon inflammatory dermatosis of the mucocutaneous surfaces that can present with a variety of clinical manifestations and, most commonly, affecting middle-aged adults. The disease course may be short or chronic, although most cases may resolve after 1 month to 7 years. The real prevalence of LP is unknown, but is estimated to be 1% in the USA.1 The pathogenesis of LP is not entirely understood. In general, activated T lymphocytes are recruited to the dermal–epidermal junction and induce apoptosis in basal keratinocytes. Both CD4+ and CD8+ T lymphocytes are found in the lichenoid infiltrate of LP, with a predominance of the latter cell type b…
2014
Pandemic and seasonal influenza viruses cause considerable morbidity and mortality in the general human population. Protection from severe disease may result from vaccines that activate antigen-presenting DC for effective stimulation of influenza-specific memory T cells. Special attention is paid to vaccine-induced CD8+ T-cell responses, because they are mainly directed against conserved internal influenza proteins thereby presumably mediating cross-protection against circulating seasonal as well as emerging pandemic virus strains. Our study showed that influenza whole virus vaccines of major seasonal A and B strains activated DC more efficiently than those of pandemic swine-origin H1N1 and…