The aim of this paper was to evaluate the performances of ARFIMA modelling for detecting long-range dependence and estimating fractal exponents. More specifically, our aim was to test the procedure proposed by Wagenmakers, Farrell and Ratcliff (2005), and to compare the results obtained with the Akaike Information Criterion (AIC) and the Bayes Information Criterion (BIC). The present studies sh...

Context. We have observed the Crab Pulsar in the optical with S-Cam, an instrument based on Superconducting Tunneling Junctions (STJs) with μs time resolution. Aims. Our aim was to study the delay between the radio and optical pulse. Methods. The Crab Pulsar was observed three times over a time span of almost 7 years, on two different locations, using three different versions of the instrument,...

Observations with the Rossi X-ray Timing Explorer and the Jodrell Bank, Parkes, and Green Bank telescopes have enabled us to determine the time delay between radio and X-ray pulses in the two isolated pulsars B1821−24 and B1509−58. For the former 3 Hubble Fellow – 2 – we find that the narrow X-ray and radio pulse components are close to being coincident in time, with the radio peak leading by 0...

Like the biological clock in the body, replication of each cell type (even different cells of the same organism) follows a timing program. Abnormal function of this timer could be an alarm for a disease like cancer. DNA replication starts from a specific point on the chromosome that is called the origin of replication. In contrast to prokaryotes in which DNA replication starts from a single ...

Abstract People produced time intervals of 500 to 1250 ms, with accurate feedback in ms provided after each production. The mean times tracked the target closely, and coefficient variation (standard deviation/mean) declined increasing time. absolute change from one trial another, its standard deviation, measures trial-by-trial change, also increased A model was fitted all four measures. It assu...

Homogenous Charge Compression Ignition (HCCI) engines hold promise of high fuel efficiency and low emission levels for future green vehicles. But in contrast to gasoline and diesel engines, HCCI engines suffer from lack of having direct means to initiate combustion. A combustion timing controller with robust tracking performance is the key requirement to leverage HCCI application in production ...

Context. The Crab pulsar emits across a large part of the electromagnetic spectrum. Determining the time delay between the emission at different wavelengths will allow to better constrain the site and mechanism of the emission.We have simultaneously observed the Crab Pulsar in the optical with S-Cam, an instrument based on Superconducting Tunneling Junctions (STJs) with μs time resolution and a...

Observations with the Rossi X-ray Timing Explorer and the Jodrell Bank, Parkes, and Green Bank telescopes have enabled us to determine the time delay between radio and X-ray pulses in the two isolated pulsars B1821?24 and B1509?58. For the former { 2 { we nd that the narrow X-ray and radio pulse components are close to being coincident in time, with the radio peak leading by 0.02 period (60 20s...