Browsing Artículos by Title
Now showing items 64-83 of 200
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First all-sky search for continuous gravitational waves from unknown sources in binary systems
(2014)We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specially developed analysis program, the ... -
First-principles studies of lithium storage in reduced graphite oxide
(2014-09)The present work performs a first-principles study of the lithiation of graphite oxides with low oxygencontent, which resemble reduced graphite oxide materials. The chemical nature of the Li structure formedis analysed, ... -
Floquet chiral edge states in graphene
(2014)We report on the emergence of laser-induced chiral edge states in graphene ribbons. Insights on the nature of these Floquet states is provided by an analytical solution which is complemented with numerical simulations of ... -
From a systems theory of sociology to modeling the onset and evolution of criminality
(2015)This paper proposes a systems theory approach to the modeling of onset and evolution of criminality in a territory. This approach aims at capturing the complexity features of social systems. Complexity is related to the ... -
Gadolinium substitution effect on the thermomagnetic properties of Ni ferrite ferrofluids
(2016)This work is focused on the characterization of Ni-ferrite nanocrystals and their subsequent doping with Gd, in an attempt to explore Gd inclusion in the thermomagnetic properties of prepared ferrofluids. Spinel ferritesNiFe2O4, ... -
The generalization complexity measure for continuous input data
(2014)We introduce in this work an extension for the generalization complexity measure to continuous input data. The measure, originally defined in Boolean space, quantifies the complexity of data in relationship to the prediction ... -
Generalization of entropy based divergence measures for symbolic sequence analysis
(2014)Entropy based measures have been frequently used in symbolic sequence analysis. A symmetrized and smoothed form of Kullback-Leibler divergence or relative entropy, the Jensen-Shannon divergence (JSD), is of particular ... -
Generalized multi-terminal decoherent transport: recursive algorithms and applications to SASER and giant magnetoresistance
(2014)Decoherent transport in mesoscopic and nanoscopic systems can be formulated in terms of the D'Amato–Pastawski (DP) model. This generalizes the Landauer–Büttiker picture by considering a distribution of local decoherent ... -
Geometric approach to extend Landau-Pollak uncertainty relations for positive operator-valued measures
(2014)We provide a twofold extension of Landau-Pollak uncertainty relations for mixed quantum states and for positive operator-valued measures, by recourse to geometric considerations. The generalization is based on metrics ... -
Geometric formulation of the uncertainty principle
(2014)A geometric approach to formulate the uncertainty principle between quantum observables acting on an N-dimensional Hilbert space is proposed. We consider the fidelity between a density operator associated with a quantum ... -
Geometrical guidance and trapping transition of human sperm cells
(2014)The guidance of human sperm cells under confinement in quasi-2D microchambers is investigated using a purely physical method to control their distribution. Transport property measurements and simulations are performed with ... -
A high performance biometric system based on image morphological analysis
(2014)At present, many of the algorithms used and proposed for digital imaging biometric systems are based on mathematical complex models, and this fact is directly related to the performance of any computer implementation of ... -
High resolution, week-long, locomotion time series from Japanese quail in a home-box environment
(2016-06-07)Temporal and spatial patterns of locomotion reflect both resting periods and the movement from one place to another to satisfy physiological and behavioural needs. Locomotion is studied in diverse areas of biology such as ... -
ICME international survey on teachers working and learning through collaboration : June 2016
(2016)This article presents preliminary results from a survey commissioned for ICME 13 (2016) focusing on “Teachers Working and Learning Through Collaboration”. It takes as a starting point a previous survey, commissioned for ... -
Implementation of an F-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data
(2014)We present an implementation of the F -statistic to carry out the first search in data from the Virgo laser interferometric gravitational wave detector for periodic gravitational waves from a priori unknown, isolated ... -
Implementation of several mathematical algorithms to breast tissue density classification
(2014)The accuracy of mammographic abnormality detection methods is strongly dependent on breast tissue characteristics, where a dense breast tissue can hide lesions causing cancer to be detected at later stages. In addition, ... -
Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data
(2014)Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is ... -
Improving furosemide polymorphs properties through supramolecular complexes of beta-cyclodextrin
(2014)In this work, complexes of β-cyclodextrin and the two solid forms of furosemide were prepared and characterized for their potential pharmaceutical applications, with the interactions between the two compounds being studied ... -
In vivo EDXRF scanning analysis of human nail
(2014-09)This paper presents the results of a new technique forin vivoenergy dispersive X-rayfluorescence (EDXRF) scan analysis, applied to humanfingernails. The scan employs a specially designed EDXRF spectrometer, which allows a ... -
The index of symmetry of compact naturally reductive spaces
(2014)We introduce a geometric invariant that we call the index of symmetry, which measures how far is a Riemannian manifold from being a symmetric space. We compute, in a geometric way, the index of symmetry of compact naturally ...
