Ciências Exatas e da Terra |
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Ionic size effects on the Poisson-Boltzmann theory
(2017) [Artigo de periódico]In this paper, we develop a simple theory to study the effects of ionic size on ionic distributions around a charged spherical particle. We include a correction to the regular Poisson-Boltzmann equation in order to take ... -
Structure and mobility of water confined in AlPO4-54 nanotubes
(2017) [Artigo de periódico]We performed molecular dynamics simulations of water confined within AlPO4-54 nanotubes. AlPO4-54 is an artificial material made of AlO4 and of PO4 in tetrahedra arranged in a periodic structure forming pores of approximately ... -
Red giants observed by CoRoT and APOGEE : the evolution of the Milky Way’s radial metallicity gradient
(2017) [Artigo de periódico]Using combined asteroseismic and spectroscopic observations of 418 red-giant stars close to the Galactic disc plane (6 kpc < RGal < 13 kpc, lZGall < 0.3 kpc), we measure the age dependence of the radial metallicity ... -
First detection of the 448 GHz H2O transition in space
(2017) [Artigo de periódico]We present the first detection of the ortho-H2O 423330 transition at 448 GHz in space. We observed this transition in the local (z = 0:010) luminous infrared (IR) galaxy ESO 320-G030 (IRAS F11506-3851) using the Atacama ... -
Efficacy of anti-HER2 agents in combination with adjuvant or neoadjuvant chemotherapy for early and locally advanced HER2-positive breast cancer patients : a network meta-analysis
(2018) [Artigo de periódico]Background: Several (neo)adjuvant treatments for patients with HER2-positive breast cancer have been compared in different randomized clinical trials. Since it is not feasible to conduct adequate pairwise comparative trials ... -
Dynamics, thermodynamics, and phase transitions of classical spins interacting through the magnetic field
(2018) [Artigo de periódico]We introduce and study a one dimensional model of classical planar spins interacting self-consistently through magnetic field. The spins and the magnetic field evolve in time according to the Hamiltonian dynamics which ... -
Single electron dynamics in a Hall thruster electromagnetic field profile
(2017) [Artigo de periódico]In this work, the single electron dynamics in a simplified three dimensional Hall thruster model is studied. Using Hamiltonian formalism and the concept of limiting curves, one is able to determine confinement conditions ... -
Stability and self-organization of planetary systems
(2018) [Artigo de periódico]We show that stability of planetary systems is intimately connected with their internal order. An arbitrary initial distribution of planets is susceptible to catastrophic events in which planets either collide or are ejected ... -
Magnetosonic waves in a quantum plasma with arbitrary electron degeneracy
(2018) [Artigo de periódico]Using a two-species quantum hydrodynamic model, we derive the quantum counterpart of magnetosonic waves, in a plasma with arbitrary degree of degeneracy and taking into account quantum diffraction effects due to the ... -
Temperature of maximum density and excess properties of short-chain alcohol aqueous solutions : a simplified model simulation study
(2017) [Artigo de periódico]We perform an extensive computational study of binary mixtures of water and short-chain alcohols resorting to two-scale potential models to account for the singularities of hydrogen bonded liquids. Water molecules are ...
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