A new way to determine the neutrino mass hierarchy at reactors

The determination of the neutrino mass ordering is currently pursued by several experiments and proposals. A very challenging one is its evaluation from reactor experiments based on the tiny interference effect between the $\Delta m^2_{31}$ and $\Delta m^2_{32}$ oscillations. Current analyses require several years of data taking and an extreme energy resolution to achieve anyhow less than 5 $\sigma$. Referring to the JUNO experimental conditions we developed a completely new technique that would provide a robust 5 $\sigma$ measurement in less than six years of running. The two orderings could be discriminated at the price of allowing for two different values of $\Delta m^2_{31}$. This degeneracy on $\Delta m^2_{31}$ (around $12\times 10^{-5}$ eV$^2$) can however be measured at an unprecedented accuracy of much less than 1\%, i.e. $10^{-5}$ eV$^2$, within the same analysis. Analogies with the usual $\chi^2$ analysis, where the $\Delta m^2_{31}$ degeneracy is much more important, are discussed. Evaluation and inclusion of systematic errors and backgrounds have been performed, the most relevant among them being the addition of the two remote reactor plants 250 km away. Baselines of each contributing reactor core and its spatial resolution have been taken into account. Possible results after two years of running and the foreseen initially-reduced available reactor power have been studied, too. These results confirm the very positive perspectives for JUNO to determine the mass ordering in a vacuum-oscillation dominated region.Comment: 37 pages, 22 figures, in this version added one more appendix about Chi^2, formal foundation of F as optimal estimator, submitted to JHE

I nidi domiciliari nelle Marche: una nuova realt\ue0 educativa

Il contributo ha l'obiettivo di definire uno dei servizi integrativi innovativi per la prima infanzia, ossia quello dei nidi domiciliari. Tale realt\ue0 educativa, infatti, si sta diffondendo anche in Italia, grazie pure alla promozione e agli investimenti di molte regioni. In particolare, \ue8 stata esaminata la legislazione di riferimento della Regione Marche, unitamente al profilo professionale dell'operatrice di nido domiciliare e alla sua formazione. Infine, attraverso la somministrazione di un questionario, rivolto sia alle educatrici di nido domiciliare, sia ai genitori dei bambini frequentanti il servizio, si \ue8 riusciti a definire, per le prime, un quadro su chi opera in questo campo, sulla motivazione a svolgere tale professione, sulle difficolt\ue0 incontrate e sulle scelte operative, mentre ai genitori \ue8 stato chiesto come e perch\ue9 si siano orientati verso una scelta cos\uec particolare, permettendo anche di confermare la loro piena soddisfazione

Spontaneous sealing of a type Ia endoleak after ovation stent graft implantation in a patient with on-label aortic neck anatomy

We report a case of an early type Ia endoleak after endovascular aneurysm repair (EVAR) of an abdominal aortic aneurysm by Ovation Stent Graft implantation and spontaneously resolved without further reintervention. The patient presents a conical aortic neck, but EVAR was performed within the instruction for use proposed by manufactory. At completion angiography, a low-flow type Ia endoleak was present and left untreated. Computed tomographic angiography performed on the third postoperative day showed infolding of the 2 sealing rings. The patient was dismissed without further treatment. At 3-month follow-up, the leak appeared spontaneously sealed with partial expansion of the 2 rings.We report a case of an early type Ia endoleak after endovascular aneurysm repair (EVAR) of an abdominal aortic aneurysm by Ovation Stent Graft implantation and spontaneously resolved without further reintervention. The patient presents a conical aortic neck, but EVAR was performed within the instruction for use proposed by manufactory. At completion angiography, a low-flow type Ia endoleak was present and left untreated. Computed tomographic angiography performed on the third postoperative day showed infolding of the 2 sealing rings. The patient was dismissed without further treatment. At 3-month follow-up, the leak appeared spontaneously sealed with partial expansion of the 2 rings

NI-DPU ASW v1.3.8 Test Plan and Test Report

The objective of this document is to provide the test plan carried out on v1.3.8 of the DPU ASW and to report the test results. All tests were done at system level. This document is focused on the ASW test phase carried out on DPU AVM at TAS premises in Turin after its qualification to validate the applicative before installing it on DPU FM unit

Hydroamination of alkynes catalyzed by NHC-Gold(I) complexes: the non-monotonic effect of substituted arylamines on the catalyst activity

: Imines are valuable key compounds for synthesizing several nitrogen-containing molecules used in biological and industrial fields. They have been obtained, as highly regioselective Markovnikov products, by reacting several alkynes with arylamines in the presence of three new N-Heterocyclic carbene gold(I) complexes (3b, 4b, and 6b) together with the known 1-2b and 7b gold complexes as well as silver complexes 1-2a. Gold(I) complexes were investigated by means of NMR, mass spectroscopy, elemental analysis, and X-ray crystallographic studies. Accurate screening of co-catalysts and solvents led to identifying the best reaction conditions and the most active catalyst (2b) in the model hydroamination of phenylacetylene with aniline. Complex 2b was then tested in the hydroamination of alkynes with a wide variety of arylamines yielding a lower percentage of product when arylamines with both electron-withdrawing and electron-donating substituents were involved. Computational studies on the rate-determining step of hydroamination were conducted to shed light on the significantly different yields observed when reacting arylamines with different substituents

Zero Bias Configuration - validation test using the NI-PLM setup

The validation of the ZBC procedure applied to the NISP flight hardware is describe

DPU-ASW Management of the DCU ERROR REG content with possible off-line recovery actions

A new strategy is defined for the management of the errors in the DCU science interface dedicated to the scientific data acquisitio