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Sep 15, 2018

HD 38858: a solar type star with a $\sim$10.8 yr activity cycle. Se…

Context. The detection of chromospheric activity cycles in solar-analogue and twin stars, can be used to put in context the solar cycle. However, the…
Aug 30, 2014
Populations and Evolution

Mathematical model of livestock and wildlife: Predation and competiti…

Inspired by real scenarios in Northern Patagonia, we analyze a mathematical model of a simple trophic web with two herbivores and one predator. The s…
Apr 21, 2017
Other Condensed Matter
Strongly Correlated Electrons

Temperature Dependence of the Effective Interdimeric Exchange Inter…

We report a variation with temperature ($T$) of the effective interdimeric interaction $J^\prime_{\mathrm{eff}}$ in the antiferromagnetic (AFM) coppe…
Feb 01, 2018
Soft Condensed Matter
Biological Physics

Langevin equations for the run-and-tumble of swimming bacteria

The run and tumble motions of a swimming bacterium are well characterized by two stochastic variables: the speed $v(t)$ and the change of direction o…
Aug 25, 2017
Adaptation and Self-Organizing Systems

Oscillations from satiation of predators

We develop a mathematical model of extinction and coexistence in a generic predator-prey ecosystem composed of two herbivores in asymmetrical competi…
Apr 02, 2019

High-precision analysis of binary stars with planets. I. Searching fo…

We explore the probable chemical signature of planet formation in the remarkable binary system HD 106515. The A star hosts a massive long-period plan…
Oct 02, 2017

Galactic perturbations on the population of wide binary stars with …

Aims. The aim of this work is to study the dynamical effects of the Galaxy on binary star systems with physical and orbital charac- teristics similar…
Sep 03, 2010
Chaotic Dynamics

Loschmidt echo in quantum maps: the elusive nature of the Lyapunov …

The Loschmidt echo is a measure of the stability and reversibility of quantum evolution under perturbations of the Hamiltonian. One of the expected a…
Dec 12, 2016
Soft Condensed Matter
Biological Physics
Cell Behavior

A stochastic model for directional changes of swimming bacteria

In this work we introduce a stochastic model to describe directional changes in the movement of swimming bacteria. We use the probability density fun…
Jun 09, 2017
Computer Vision

An Ensemble Deep Learning Based Approach for Red Lesion Detection in …

Diabetic retinopathy is one of the leading causes of preventable blindness in the world. Its earliest sign are red lesions, a general term that group…
Jun 12, 2018

Dynamic portrait of the region occupied by the Hungaria Asteroids: Th…

The region occupied by the Hungaria asteroids has a high dynamical complexity. In this paper, we analyse the main dynamic structures and their influe…
May 10, 2011

Super exponential inflation from a dynamical foliation of a 5D vacuum…

We introduce super exponential inflation ($\omega < -1$) from a 5D Riemann-flat canonical metric on which we make a dynamical foliation. The resultin…
Jul 07, 2017

Signatures of rocky planet engulfment in HAT-P-4. Implications for …

Aims. To explore the possible chemical signature of planet formation in the binary system HAT-P-4, by studying abundance vs condensation temperature …
May 29, 2014
Medical Physics

Screening of Obstructive Sleep Apnea with Empirical Mode Decompositio…

Detection of desaturations on the pulse oximetry signal is of great importance for the diagnosis of sleep apneas. Using the counting of desaturations…
Sep 25, 2018

Using non-solar-scaled opacities to derive stellar parameters. Toward…

We implemented non-solar-scaled opacities in a simultaneous derivation of fundamental parameters and abundances. We carried out a high-precision stel…
Nov 02, 2018
Neural and Evolutionary Computation
Distributed
Parallel
and Cluster Computing

CMI: An Online Multi-objective Genetic Autoscaler for Scientific and …

Cloud Computing is becoming the leading paradigm for executing scientific and engineering workflows. The large-scale nature of the experiments they m…
Oct 05, 2015

An X-ray characterization of the central region of the SNR G332.5-5.6

We present an X-ray analysis of the central region of supernova remnant (SNR) G332.5-5.6 through an exhaustive analysis of XMM-Netwon observations wi…
Jan 13, 2013
Mesoscale and Nanoscale Physics

Quantum control of a model qubit based on a multi-layered quantum dot

In this work we present a model qubit whose basis states are eigenstates of a multi-layered quantum dot. We show that the proper design of the quantu…
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