Relaxation phenomena in disordered systems are often described by stretched exponentials; such behavior has traditionally been explained by invoking statistical distributions. In hydrogenated amorphous silicon, the relaxation has been associated with dispersive diffusion of hydrogen, related to a distribution of energies for trap states and barrier heights. Here we show that invoking such energ...

Let a1, . . . , an, b1, . . . , bn be random variables in some (non-commutative) probability space, such that {a1, . . . , an} is free from {b1, . . . , bn}. We show how the joint distribution of the n-tuple (a1b1, . . . , anbn) can be described in terms of the joint distributions of (a1, . . . , an) and (b1, . . . , bn), by using the combinatorics of the n-dimensional R-transform. We point out...

The count of the nucleotides in a cloned, short genomic sequence has become an important criterion to annotate such a sequence as a miRNA molecule. While the majority of human mature miRNA sequences consist of 22 nucleotides, there exists discrepancy in the characteristic lengths of the miRNA sequences. There is also a lack of systematic studies on such length distribution and on the biological...

In this paper, we present an approach to execute more realistic traffic sources in network simulators (like Network Simulator 2) for fixed and mobile networks. Traffic source models can be defined from network measures to give an accurate statistical distribution of inter-arrival time and packet size at packet level. These traffic sources models can be integrated into a network simulator to per...

El COVID 19 además de haber enfrentado al mundo a una crisis sanitaria sin precedente, ha servido para que algunos filósofos entre ellos Giorgio Agamben hayan abordado esta desde perspectiva política y social, analizando el permanente estado excepción en estamos viviendo. En este artículo intentamos mostrar la visión cómo las situaciones extremas se convierten paradigmas lo cotidiano si no somo...

A new algorithm for the automatic recognition of peak and baseline regions in spectra is presented. It is part of a study to devise a baseline correction method that is particularly suitable for the simple and fast treatment of large amounts of data of the same type, such as those coming from high-throughput instruments, images, process monitoring, etc. This algorithm is based on the continuous...