Search results for "sperimentale"
showing 10 items of 938 documents
Design of an Antimatter Large Acceptance Detector In Orbit (ALADInO)
2022
International audience; A new generation magnetic spectrometer in space will open the opportunity to investigate the frontiers in direct high-energy cosmic ray measurements and to precisely measure the amount of the rare antimatter component in cosmic rays beyond the reach of current missions. We propose the concept for an Antimatter Large Acceptance Detector In Orbit (ALADInO), designed to take over the legacy of direct measurements of cosmic rays in space performed by PAMELA and AMS-02. ALADInO features technological solutions conceived to overcome the current limitations of magnetic spectrometers in space with a layout that provides an acceptance larger than 10 m sr. A superconducting ma…
La valutazione delle attività neurodidattiche. Fondamenti, tecniche e strumenti.
2022
Le attività neurodidattiche si fondano sulla commistione tra le Scienze dell’Educazione e le Neuroscienze. Oggi, il cammino intrapreso da quest’ambito di ricerca intende fornire preziosi apporti alla prassi educativo-didattica; tuttavia, se da un lato esso registra un grande fervore sia in ambito nazionale sia soprattutto nel panorama internazionale, dall’altro stenta a convertire le nuove consapevolezze apprese in solide basi del proprio percorso. Se il Brain-based learning comincia a campeggiare nel contesto didattico italiano, è parimenti vero che la formazione all’utilizzo dei modelli di attività neurodidattiche richiede l’implementazione della riflessione, della verifica continua delle…
Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
2018
Physics letters / B 784, 173 - 191 (2018). doi:10.1016/j.physletb.2018.07.035
Promuovere l'autostima, l'autoefficacia e lo stile decisionale a scuola attraverso la scrittura espressiva
2015
Esprimere in forma scritta le proprie emozioni positive quando si pensa ai propri obiettivi di vita fa bene alla salute. È questa la conclusione cui è giunta laura King dopo aver analizzato gli effetti della trascrizione del proprio miglior sé proiettato nel futuro. James W. Pennebaker, pioniere della scrittura espressiva sperimentata secondo la modalità retrospettiva, ha invece sottolineato gli effetti sulla salute della scrittura di emozioni negative connesse ad episodi traumatici vissuti nel passato. Nel presente studio, si sono presi in considerazione i contributi dei due ricercatori per confrontare gli effetti della trascrizione delle paure e delle speranze riguardo al futuro su tre co…
Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV
2018
Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. Methods of reconstructing the BIB signals in the ATLAS detector, developed and implemented in the simulation chain based on the FLUKA Monte Carlo simulation package, are described. The interaction rates are determined from the residual gas pressure distribution in the LHC ring in order to set an absolute scale on the predicted rates of BIB so that they can be compared qua…
Fluorescent Boron Oxide Nanodisks as Biocompatible Multi-messenger Sensors for Ultrasensitive Ni$^{2+}$ Detection
2023
Boron-based nanocomposites are very promising for a wide range of technological applications, spanning from microelectronics to nanomedicine. A large variety of B-based nanomaterials has been already observed, such as borospherene, B nanotubes and nanoparticles, and boron nitride nanoparticles. However, their fabrication usually involves toxic precursors or leads to very low yields or small boron atom concentration. In this work, we report the synthesis of nanometric B$_{2}$O$_{3}$ nanodisks, a family of nanomaterials with a quasi-2D morphology capable of intense fluorescence in the visible range. Such as boron-based nanomaterial, which we synthesized by pulsed laser ablation of a boron tar…
THE MULTI-CODE LANGUAGE OF THE MIND. A SURVEY ON TEACHERS’ EDUCATIONAL PRACTICES
2021
In planning the educational offer, the educator/teacher must consider the emerging neuroscientific evidence concerning the multi-codic language of the mind and the peculiarity of each evolutionary trajectory. After framing the different multi-codic influences that characterize the formation of brain configurations (two examples are reported: one linked to the cognitive sphere and one linked to motor skills and corporeality), the consequent peculiarity of each student or person in training is underlined. In the second part of the paper, a survey conducted with 440 teachers of the first and second cycle school during the second semester of the A.S. 2020/2021. The survey was conducted through …
Scalable Electro-Optic Control of Localized Bistable Switching in Broad-Area VCSELs Using Reconfigurable Funnel Waveguides
2017
We demonstrate a steplike optical modulation based on the activation and deactivation of a bistable localized structure using a photoinduced and reconfigurable miniaturized 30 × 30 μm electroactivated funnel waveguide. Control of a single 10-μm-diameter spot in a 200-μm-diameter vertical-cavity surfaceemitting laser at 980 nm is achieved modulating the phase of an exciting beam in the specific position of the spot in the cavity. This localized on-off response can be scaled into arrays and offer a possible route to fast integrated optical logical functions and memory at low intensities at near-infrared wavelengths.
Determinazione della componente gamma nella colone termica del reattore TRIGA di Pavia tramite Dosimetri ESR di alanina
2016
Negli ultimi anni il crescente interesse verso la radioterapia a cattura neutronica (internazionalmente nota come Neutron Capture Therapy - NCT) per il trattamento di neoplasie ha stimolato diverse attività di ricerca finalizzate alla caratterizzazione del fascio utilizzato e all'ottimizzazione delle procedure radioterapiche. Tra i vari sistemi dosimetrici trovano largo impiego i rivelatori a stato solido ESR (Risonanza di Spin Elettronico) a base di alanina che presentano diversi vantaggi come la tessuto equivalenza, la linearità della risposta in un ampio intervallo di dose, l'elevata stabilità dei radicali liberi radioindotti, la non distruttività della lettura del dosimetro e il basso c…
Photoinduced charge separation in functional carbon-silver nanohybrids
2022
In recent times, nanoscience is devoting growing interest to the easy assembly of well-established nanomaterials into hybrid nanostructures displaying new emerging features. Here, we study the photophysicochemical response of binary nanohybrids obtained by the spontaneous coupling of luminescent carbon dots to silver nanoparticles with controlled surface charge. Evidence of the successful coupling is obtained by steady-state and time resolved optical measurements and further confirmed by direct imaging. We demonstrate strong interactions within nanohybrids, which can be modelled in terms of a sub-picosecond electron transfer from photoexcited carbon dots to silver nanoparticles. Accordingly…