Física de la Matèria Condensada: Enviaments recents
Ara mostrant els elements 281-300 de 1286
Consensus in networks of mobile communicating agents
Populations of mobile and communicating agents describe a vast array of technological and natural systems, ranging from sensor networks to animal groups. Here, we investigate how a group-level agreement may emerge in the ...
Gravitational field of superconducting cosmic strings
A Comment on the Letter by E. Copeland, H. Hindmarsh, and N. Turok, Phys. Rev. Lett. 58, 1910 (1987).
Dynamical properties of the Zhang model of self-organized criticality
Critical exponents of the infinitely slowly driven Zhang model of self-organized criticality are computed for d=2 and 3, with particular emphasis devoted to the various roughening exponents. Besides confirming recent ...
Diffusion dynamics on multiplex networks
We study the time scales associated with diffusion processes that take place on multiplex networks, i.e., on a set of networks linked through interconnected layers. To this end, we propose the construction of a supra-Laplacian ...
Hamiltonian formalism for path-dependent Lagrangians
A presymplectic structure for path-dependent Lagrangian systems is set up such that, when applied to ordinary Lagrangians, it yields the familiar Legendre transformation. It is then applied to derive a Hamiltonian formalism ...
Real-time hardware emulation of neural cultures: A comparative study of invitro, in silico and in duris silico models
Biological neural networks are well known for their capacity to process information with extremely low power consumption. Fields such as Artificial Intelligence, with high computational costs, are seeking for alternatives ...
Short-time dynamics of colloidal suspensions in confined geometries
We analyze the short-time dynamical behavior of a colloidal suspension in a confined geometry. We analyze the relevant dynamical response of the solvent, and derive the temporal behavior of the velocity autocorrelation ...
Resource heterogeneity leads to unjust effort distribution in climate change mitigation
Climate change mitigation is a shared global challenge that involves collective action of a set of individuals with different tendencies to cooperation. However, we lack an understanding of the effect of resource inequality ...
Biblioteques i universitats públiques: un camí comú cap a una ciència més ciutadana
Les biblioteques públiques estan vivint un procés de transformació per adaptar-se a l’esperit dels temps: desenvolupen nous rols de col·laboració amb les universitats, apropen la recerca científica a la comunitat i esdevenen ...
Efficiency of informational transfer in regular and complex networks
We analyze the process of informational exchange through complex networks by measuring network efficiencies. Aiming to study nonclustered systems, we propose a modification of this measure on the local level. We apply this ...
Entropic Splitter for Particle Separation
We present a particle separation mechanism which induces the motion of particles of different sizes in opposite directions. The mechanism is based on the combined action of a driving force and an entropic rectification of ...
Stacking correlation length in single-stranded DNA
Base stacking is crucial in nucleic acid stabilization, from DNA duplex hybridization to single-stranded DNA (ssDNA) protein binding. While stacking energies are tiny in ssDNA, they are inextricably mixed with hydrogen ...
A multicaloric cooling cycle that exploits thermal hysteresis
The giant magnetocaloric effect, in which large thermal changes are induced in a material on the application of a magnetic field, can be used for refrigeration applications, such as the cooling of systems from a small to ...
Magnetite-Amyloid-β deteriorates activity and functional organization in an in vitro model for Alzheimer's disease
The understanding of the key mechanisms behind human brain deterioration in Alzheimer' disease (AD) is a highly active field of research. The most widespread hypothesis considers a cascade of events initiated by amyloid-β ...
Jerarquías biológicas y la cinética de reacción-difusión
El lenguaje matemático de la dinámica cualitativa presenta un notable interés para el estudio de las estructuras disipativas, es decir, para el- tratamiento de los fenómenos de morfogénesis y organización que aparecen en ...
Quantum vortex motion in high¿Tc superconductors
Magnetic relaxation experiments at low temperatures were performed in different zero‐field‐cooled (ZFC) and field‐cooled (FC) high‐Tc superconductors (HTSCs): TlBaCaCuO (2212 and 2223 phases, polycrystalline and thin‐film ...
Self-organized criticality induced by diversity
We have studied the collective behavior of a population of integrate-and-fire oscillators. We show that diversity, introduced in terms of a random distribution of natural periods, is the mechanism that permits one to observe ...
Redefining the concept of hydration water near soft interfaces
Water determines the properties of biological systems. Therefore, understanding the nature of the mutual interaction between water and biosystems is of primary importance for a proper assessment of any biological activity, ...
Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
Lattice-Boltzmann simulations of a turbulent duct flow have been carried out to obtain trajectories of passive tracers in the conditions of a series of microgravity experiments of turbulent bubble suspensions. The statistics ...
Condensation Transition in DNA-Polyaminoamide Dendrimer Fibers Studied Using Optical Tweezers
When mixed together, DNA and polyaminoamide dendrimers form fibers that condense into a compact structure. We use optical tweezers to pull condensed fibers and investigate the decondensation transition by measuring ...
