Search results for "MAG"
showing 10 items of 30133 documents
Strongly Coupled Coherent Phonons in Single-Layer MoS 2
2019
We present a transient absorption setup combining broadband detection over the visible-UV range with high temporal resolution ($\sim$20fs) which is ideally suited to trigger and detect vibrational coherences in different classes of materials. We generate and detect coherent phonons (CPs) in single layer (1L) MoS$_2$, as a representative semiconducting 1L-transition metal dichalcogenide (TMD), where the confined dynamical interaction between excitons and phonons is unexplored. The coherent oscillatory motion of the out-of-plane $A'_{1}$ phonons, triggered by the ultrashort laser pulses, dynamically modulates the excitonic resonances on a timescale of few tens fs. We observe an enhancement by…
La rappresentazione della professionalità dello psicologo in ambito giuridico. Un contributo di ricerca.
2008
Nonostante negli ultimi anni ci sia stata una evoluzione ed una sistematizzazione normativa in merito alla professione dello psicologo, tuttavia essa è da sempre attraversata da una crisi d’immagine. Come afferma Perussia (1994), il problema dell’immagine pubblica dello psicologo incide su vari aspetti, tra i quali: autostima e immagine di sè da parte del professionista, attese del pubblico, ruolo assunto nei contesti lavorativi, disponibilità di fondi pubblici, ecc. Proprio per questi motivi, varie sono le ricerche dedicate a questo argomento (Guest, 1948; Nunnally & Kittross 1958; Webb & Speer, 1985; Carli, 2001; Bosio, 2004). I dati fin qui emersi mettono in evidenza come nel tempo si si…
Crystal field and magnetism with Wannier functions: Rare-earth doped aluminum garnets
2015
Using the recently developed method we calculate the crystal field parameters in yttrium and lutetium aluminum garnets doped with seven trivalent Kramers rare-earth ions. We then insert calculated parameters into the atomic-like Hamiltonian taking into account the electron-electron, spin-orbit and Zeeman interactions and determine the multiplet splitting by the crystal field as well as magnetic $\hat{g}$ tensors. We compare calculated results with available experimental data.
Achilles tendon viscoelastic properties and mechanical responses to a single bout of exercise
2014
Hyperspectral Imaging of Macroinvertebrates : a Pilot Study for Detecting Metal Contamination in Aquatic Ecosystems
2018
The applicability of spectral analysis in detection of freshwater metal contamination was assessed by developing and testing a novel hyperspectral imaging (HSI) application for aquatic insect larvae (Trichoptera: Hydropsychidae). Larvae were first exposed to four different cadmium (Cd) concentrations: 0, 1, 10, and 100 μg L−1 for 96 h. Individual larvae were then preserved in ethanol, inspected with microscopy for the number of anomalies in larval gills, and imaged by hyperspectral camera operating with wavebands between 500 and 850 nm. Three additional larvae from each exposure were analyzed for tissue Cd concentration. Although the larval tissue Cd concentrations correlated positively wit…
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering Determined by the OLYMPUS Experiment
2017
The OLYMPUS collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, $R_{2\gamma}$, a direct measure of the contribution of hard two-photon exchange to the elastic cross section. In the OLYMPUS measurement, 2.01~GeV electron and positron beams were directed through a hydrogen gas target internal to the DORIS storage ring at DESY. A toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight scintillators detected elastically scattered leptons in coincidence with recoiling protons over a scattering angle range of $\approx 20\degree$ to $80\degree$. The relative luminosity between the two beam species was mo…
Achieving both creativity and rationale : reuse in design with images and claims
2011
Although designers often try to create novel designs, many designs are based on previous work. In this paper we argue for the reuse of rationale, in the form of claims, as a central activity in design, and explore how this can be used to inspire creativity. We present a design activity in which images and claims are reused to create a storyboard and illustrate how creativity and rationale complement each other. Our work serves to demonstrate that an appropriate design activity can be used to leverage creativity with the use of rationale. peerReviewed
La qualità del sughero: metodologie di valutazione e norme tecniche per il sughero grezzo e per i prodotti derivati.
2007
La possibilità di ritrarre dal sughero prodotti derivati dipende fortemente dalla sua qualità. Il termine «qualità» del sughero non è sostenuto da chiari riferimenti normativi e non esiste, allo stato attuale, una metodologia oggettiva per la sua valutazione univocamente accettata. In questi ultimi anni si sta producendo uno sforzo teso all’oggettivazione di metodologie di valutazione della qualità del sughero attraverso la definizione di norme di classificazione e standardizzazione dei prodotti ritraibili e/o attraverso sperimentazioni concernenti l’applicazione sul sughero grezzo o sui prodotti derivati di particolari tecniche utilizzate in altri campi scientifici e/o su altri materiali. …
Definición de Algoritmos de Caracterización y Emparejamiento de Huellas Magnéticas para la Re-Identificación de Vehículos en Entornos Interurbanos ba…
2015
La gestión del tráfico es una tarea que requiere disponer de la máxima información sobre el estado de las vías de circulación y sobre los vehículos que las utilizan. Esta información se obtiene a través del procesamiento de los datos que ofrecen un gran conjunto de sensores distribuidos sobre la infraestructura y los vehículos que se desea monitorizar. En este contexto, los datos más apreciados son los que permiten conocer los itinerarios individuales de cada vehículo, y son muy pocos los tipos de sensores que pueden ofrecerlos a través de un proceso de re-identificación de vehículos en distintos puntos de la red viaria. Los sensores magnéticos se han aplicado a la detección del tráfico des…
Structured reporting of rectal cancer staging and restaging: A consensus proposal
2021
Background: Structured reporting (SR) in oncologic imaging is becoming necessary and has recently been recognized by major scientific societies. The aim of this study was to build MRI-based structured reports for rectal cancer (RC) staging and restaging in order to provide clinicians all critical tumor information. Materials and Methods: A panel of radiologist experts in abdominal imaging, called the members of the Italian Society of Medical and Interventional Radiology, was established. The modified Delphi process was used to build the SR and to assess the level of agreement in all sections. The Cronbach’s alpha (Cα) correlation coefficient was used to assess the internal consistency of ea…