12,752 research outputs found
Resistivity anisotropy from the multiorbital Boltzmann equation in nematic FeSe
No full textWe compute the resistivity anisotropy in the nematic phase of FeSe from the
static solution of the multiorbital Boltzmann equation. By introducing disorder
at the level of the microscopic multiorbital model we show that even elastic
scattering by localized impurities may lead to non-trivial anisotropic
renormalization of the electronic velocities, challenging the usual
understanding of transport based only on cold- and hot-spots effects. Our model
takes into account both the and the recently proposed nematic
ordering. We show that the latter one has a crucial role in order to reproduce
the experimentally-measured anisotropy, providing a direct fingerprint of the
different nematic scenarios on the bulk transport property of FeSe.Comment: 14 pages, 7 figure
Contribution of Collective Excitations to Third Harmonic Generation in Multiband Superconductors: the case of MgB
No full textMultiband superconductors can host collective excitations with marked
differences with respect to their single-band counterpart. We first study the
spectrum of collective amplitude fluctuations in a clean two-bands
superconductor, showing that the spectral weight of the Higgs mode rapidly
deviates from the naive extension of the single band case as the interband
coupling is turned on. These results are then used to critically analyze the
non-linear optical response in MgB, providing an explanation for the
apparently contradictory results of recent experiments, pointing towards a
selective relevance either of the Leggett mode or of the amplitude fluctuations
at twice the lower gap. By using exact numerical simulations and realistic
estimate of disorder we compute the relative contribution of the quasiparticle,
amplitude and phase fluctuations to the non-linear optical response. We show
that at low pumping frequency only the resonance at twice the smaller gap
emerges, as due to the BCS response, while the Leggett mode dominates only in a
narrow range of higher pumping frequencies matching its low-temperature value.
Our findings provide a fresh perspective on the potential of non-linear THz
spectroscopy to detect collective modes in other multiband systems, as e.g.
iron-based superconductors
MABS validation through repeated execution and data mining analysis
No full textAgent Based Modelling is the most interesting and advanced approach for simulating a complex system: in a social context, the single parts and the whole are often very hard to describe in detail. Besides, there are agent based formalisms which allow to study the emergency of social behaviour with the creation and study of models, known as artificial societies. Thanks to the ever increasing computational power, it's been possible to use such models to create software, based on intelligent agents, which aggregate behaviour is complex and difficult to predict, and can be used in open and distributed systems. Data mining is born in the last decades in order to help users in finding useful knowledge from the otherwise overwhelming amount of data available nowadays from the web and the data collected every day by companies. Data Mining techniques can therefore be the keystone to reveal non-trivial knowledge expressed by the initial assumption used to build the micro-level of the model and the structure of the society of agents that emerged from the simulation
Carlo Frati. A. Segarizzi. Catalogo dei codici Marciani italiani, a cura della direzione della Biblioteca nazionale di S. Marco in Venezia. Volume secondo (Classi IV e V). Modena, G. Ferraguti, 1911.
No full textAuvray Lucien. Carlo Frati. A. Segarizzi. Catalogo dei codici Marciani italiani, a cura della direzione della Biblioteca nazionale di S. Marco in Venezia. Volume secondo (Classi IV e V). Modena, G. Ferraguti, 1911.. In: Bibliothèque de l'école des chartes. 1912, tome 73. pp. 344-345
Metadata for MARCO study in coeliac disease
No full textThis Excel database contains all anonymised metadata for the MARCO research study in coeliac disease. The dataset contains anonymised demographic data, imaging endpoints such as small bowel water content and whole gut transit time, all symptom questionnaire scores and the short chain fatty acid analysis data
Facades of the Libreria di San Marco in Venice, The: An Interpretation of the Design Process
No full text"A new work in which I propose an interpretation of the design process Sansovino used to create the magnificent facades of the Libreria di San Marco in Venice, a masterpiece of Renaissance architecture." Sent to Marquand librarian by author Dec. 202
Art without an Author: Vasari’s Lives and Michelangelo’s Death
No full textMonografia sulla rappresentazione di Michelangelo nelle due edizioni delle Vite, sulla storia del libro e la questione della sua paternitàBook dedicated to the representation of Michelangelo in Vasari's Lives of the Artists, to the history of the book, and to the problem of its authorshi
Laboratory of functional neuroelectrical imaging and brain computer interfacing at Fondazione Santa Lucia
No full textExperiencias y estrategias : las estrategias de aprendizaje en disciplinas proyectuales
No full textIntroducción; La experiencia; La Universidad como casa de conocimiento / Florencia Marciani; Facultad de Arquitectura, Urbanismo y Diseño; Nuestra casa de estudios / Gabriela Soto; La arquitectura y el diseño industrial; Transitar, reflexionar y volver a comenzar / Denise Gari Jonneret; Algunas reflexiones; Bibliografía; Sobre las autorasMaterial correspondiente al Ciclo de nivelación 2024.Fil: Franco, María Belén. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Gari Jonneret, Denise. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Marciani, Florencia. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Soto, María Gabriela. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.La Ley de Educación Nacional, reconoce a la educación y el conocimiento como un bien público y un derecho personal y social, garantizados por el Estado. Por su parte en la Ley de Educación Superior, se manifiesta como responsabilidad del Estado "garantizar la igualdad de oportunidades y condiciones en el acceso, la permanencia, la graduación y el egreso (art. 2 inc. a) para todos. En este marco se inscribe el Estatuto de la Universidad Nacional de Córdoba (UNC) que expresa la aplicación de los principios de gratuidad y equidad para todos los estudiantes de esta casa de altos estudios. Es así como todas las carreras de grado dictadas en la UNC, cuentan con un ciclo o Curso de Nivelación tal como lo establece la Res. HCS N°334/904, que tienen por fin disminuir la heterogeneidad de conocimientos básicos requeridos para cada carrera, y brindar información sobre la Universidad a los ingresantes.Fil: Franco, María Belén. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Gari Jonneret, Denise. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Marciani, Florencia. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina.Fil: Soto, María Gabriela. Universidad Nacional de Córdoba. Facultad de Arquitectura, Urbanismo y Diseño; Argentina
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