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showing 10 items of 2078 documents
Perspectives for CNO neutrino detection in Borexino
2018
International audience; Borexino measured with unprecedented accuracy the fluxes of solar neutrinos emitted at all the steps of the pp fusion chain. Still missing is the measurement of the flux of neutrinos produced in the CNO cycle. A positive measurement of the CNO neutrino flux is of fundamental importance for understanding the evolution of stars and addressing the unresolved controversy on the solar abundances. The measurement of the CNO neutrino flux in Borexino is challenging because of the low intensity of this component (CNO cycle accounts for about 1% of the energy emitted by Sun), the lack of prominent spectral features and the presence of background sources. The main background c…
The effect of social information from live demonstrators compared to video playback on blue tit foraging decisions.
2019
Video playback provides a promising method to study social interactions, and the number of video playback experiments has been growing in recent years. Using videos has advantages over live individuals as it increases the repeatability of demonstrations, and enables researchers to manipulate the features of the presented stimulus. How observers respond to video playback might, however, differ among species, and the efficacy of video playback should be validated by investigating if individuals’ responses to videos are comparable to their responses to live demonstrators. Here, we use a novel foraging task to compare blue tits’ (Cyanistes caeruleus) responses to social information from a live …
Searching for New Physics in two-neutrino double beta decay with CUPID
2021
Abstract In the past few years, attention has been drawn to the fact that a precision analysis of two-neutrino double beta decay (2υββ) allows the study of interesting physics cases like the emission of Majoron bosons and possible Lorentz symmetry violation. These processes modify the summed-energy distribution of the two electrons emitted in 2υββ. CUPID is a next-generation experiment aiming to exploit 100Mo-enriched scintillating Li2MoO4 crystals, operating as cryogenic calorimeters. Given the relatively fast half-life of 100Mo 2υββ and the large exposure that can be reached by CUPID, we expect to measure with very high precision the 100Mo 2υββ spectrum shape, reaching great sensitivities…
Unusual internal structure of cm-sized coldwater calcite: Weichselian spars in former pools of the Zinnbergschacht Cave (Franconian Alb/SE Germany)
2018
The investigation of the internal structure of calcite crystals is a new focus in speleothem science, especially in the range of crystallization temperatures close to 0°C. Recently found calcite spars from Zinnbergschacht Cave of the Franconian Alb (SE Germany) are ideal for multi-method investigation. The elongated calcites (up to 6 cm in length) with three to six lateral faces and basal triangular faces at the ends are observed in collapse-zones in the cave. 230Th/U-ages of 38.9 ka suggest formation during the periglacial Weichselian, between the Scandinavian and Alpine Glaciations. The δ18O and δ13C values of the calcite spars vary from -11.18 to -16.11‰ V-PDB and from -4.78 to -6.13‰ V-…
Flow cytometry diagnosis in myelodysplastic syndrome: Current practice in Latin America and comparison with other regions of the world
2019
Background: Flow cytometry (FC) is a valuable tool for the diagnosis of myelodysplastic syndromes (MDS). We present results of a survey carried out to evaluate FC current practice for MDS diagnosis in Latin America (LA), focusing on markers used and characteristics of the clinical diagnostic report. Compliance to IMDSflow recommendations was also evaluated. These practices were then compared with those used in other countries. Methods: An online survey was sent through the Grupo Latino-Americano de Mielodisplasia to LA cytometrists and other international scientific societies. Results: 91 responses from 15 LA countries were received. The median of the number of markers used was 20 +/- 4.5, …
Translation and adaptation to spanish language of the quality of life questionnaire for celiac people called Canadian Celiac Health Survey
2014
Introducción: Adaptar y valorar el cuestionario de calidad de vida denominado Canadian Celiac Health Survey (CCHS). Objetivo: Traducir y adaptar en castellano el cuestionario CCHS para poder ser utilizado por la población de habla hispana puesto que se trata de un cuestionario específico para la celiaquía. Método: La adaptación del CCHS, que consta de 76 ítems distribuidos en 11 secciones diferentes, se realizó mediante el método de traducción-retrotraducción y tras ser revisado y consensuado se procedió a realizar una prueba piloto con 25 personas celíacas, de forma individual y por un miembro del grupo de investigación, para valorar la comprensión de los ítems y sus secciones. Las aportac…
Traducción y adaptación al castellano del cuestionario de salud para celíacos Canadian Celiac Health Survey
2014
Introducción: Adaptar y valorar el cuestionario de calidad de vida denominado Canadian Celiac Health Survey (CCHS). Objetivo: Traducir y adaptar en castellano el cuestionario CCHS para poder ser utilizado por la población de habla hispana puesto que se trata de un cuestionario específico para la celiaquía. Método: La adaptación del CCHS, que consta de 76 ítems distribuidos en 11 secciones diferentes, se realizó mediante el método de traducción-retrotraducción y tras ser revisado y consensuado se procedió a realizar una prueba piloto con 25 personas celíacas, de forma individual y por un miembro del grupo de investigación, para valorar la comprensión de los ítems y sus secciones. Las aportac…
Botryosphaeriaceae species causing canker and dieback of English walnut (Juglans regia) in Italy
2020
Credit card incidents and control systems
2012
Abstract Credit and debit cards have spread and skyrocketed all around the world to become the most popular means of payments in many countries. Despite their enormous popularity, cards are not free of risk. Technology development and e-commerce have exponentially increased internal credit card incidents. This paper identifies and quantifies the different types of credit card fraud and puts into question the effectiveness of the role assigned to cardholders in its detection.
Il Cashback di Stato: evidenze empiriche e inquadramento fiscale
2020
I commi da 288 e 290 della Legge di Bilancio per il 2020 (Legge n. 160 del 27 Dicembre 2019) hanno introdotto anche in Italia le “Misure premiali per utilizzo di strumenti di pagamento elettronici”. Si tratta del meccanismo noto come cashback con il quale il governo italiano ha fatto un passo in avanti verso il traguardo di quella cashless society che, nelle intenzioni dei promotori, dovrebbe portare alla scomparsa del contante con effetti benefici sul contrasto all’evasione e ad altre forme di illeciti di natura economica. Le disposizioni normative, anche alla luce delle modifiche apportate dall’articolo 73 del D.L. n. 104 del 14 agosto 2020, prevedono un rimborso in denaro per le persone …