9,232 research outputs found
Metabolic syndrome and the immunological affair with the blood-brain barrier
Copyright © 2015 Mauro, De Rosa, Marelli-Berg and Solito. This is an open-access
article distributed under the terms of the
Creative Commons Attribution License (CC
BY)
. The use, distribution or reproduction in other forums is permitted, provided the
original author(s) or licensor are credited and that the original publication in this
journal is cited, in accordance with accepted academic practice. No use, distribution or
reproduction is permitted which does not comply with these terms
Switching of Magnetic Moments of Nanoparticles by Surface Acoustic Waves
We report evidence of the magnetization reversal in nanoparticles by surface
acoustic waves (SAWs). The experimental system consists of isolated magnetite
nanoparticles dispersed on a piezoelectric substrate. Magnetic relaxation from
a saturated state becomes significantly enhanced in the presence of the SAW at
a constant temperature of the substrate. The dependence of the relaxation on
SAW power and frequency has been investigated. The effect is explained by the
effective ac magnetic field generated by the SAW in the nanoparticles.Comment: Accepted in Europhysics Letter
Cria e recria das poedeiras coloniais Embrapa 051.
bitstream/item/59436/1/CUsersPiazzonDocuments17.pd
Cria e recria das poedeiras de ovos castanhos Embrapa 031.
bitstream/item/59435/1/CUsersPiazzonDocuments19.pd
Time-Dependent Invariants and Green's Functions in the Probability Representation of Quantum Mechanics
In the probability representation of quantum mechanics, quantum states are
represented by a classical probability distribution, the marginal distribution
function (MDF), whose time dependence is governed by a classical evolution
equation. We find and explicitly solve, for a wide class of Hamiltonians, new
equations for the Green's function of such an equation, the so-called classical
propagator. We elucidate the connection of the classical propagator to the
quantum propagator for the density matrix and to the Green's function of the
Schr\"odinger equation. Within the new description of quantum mechanics we give
a definition of coherence solely in terms of properties of the MDF and we test
the new definition recovering well known results. As an application, the forced
parametric oscillator is considered . Its classical and quantum propagator are
found, together with the MDF for coherent and Fock states.Comment: 29 pages, RevTex, 6 eps-figures, to appear on Phys. Rev.
Produção de ovos das poedeiras de ovos castanhos Embrapa 031.
bitstream/CNPSA/15681/1/itav020.pd
MultirresĂduo empregando UPLC-MS/MS e GC-MS/MS para determinação de agrotĂłxicos em cebola.
Materiais alternativos, em substituição à maravalha como cama de frangos.
bitstream/item/58061/1/CUsersPiazzonDocuments465.pdfProjeto n. 01.02.10.406.0
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