The analysis of capital markets efficiency has attracted a considerable number of studies in empirical finance, but conflicting and inconclusive outcomes have been generated. The aim of this paper is to find any evidence that the selected emergent capital markets (eight emergent European and BRIC markets, namely Hungary, Romania, Estonia, Czech Republic, Brazil, Russia, India and China) abide b...

in this paper, we have estimated the memory of thetehran stock exchange indices. the estimation of fractional differencing parameter is carried out by various methods such as mle, nls, hurst exponent, gph, lo, whittle and wavelet. the estimation results of whittle, wavelet, hurst, and lo methods allow us to conclude that the returns on stock indices (tepix, tedpix, tedix, financial index and in...

We study the middle cerebral artery blood flow velocity (MCAfv) in humans using transcranial Doppler ultrasonography (TCD). Scaling properties of time series of the axial flow velocity averaged over a cardiac beat interval may be characterized by two exponents. The short time scaling exponent (STSE) determines the statistical properties of fluctuations of blood flow velocities in short-time int...

We use a Monte-Carlo approach to investigate the performance of ve diierent time-series estimators of the exponent in 1=f noise. We nd that a maximum-likelihood estimator is markedly superior to Fourier regression methods and Hurst exponent methods. The results indicate that useful estimates of can be made from time series that are much shorter than generally presumed.

and Applied Analysis 3 Table 1: The coding sequences of the first exon of β-globin gene of different species. Species Coding sequence ATGGTGCACCTGACTCCTGAGGAGAAGTCTGCCGT Human TACTGCCCTGTGGGGCAAGGTGAACGTGGATTAAG TTGGTGGTGAGGCCCTGGGCAG ATGCTGACTGCTGAGGAGAAGGCTGCCGTCACCGG Goat CTTCTGGGGCAAGGTGAAAGTGGATGAAGTTGGTG CTGAGGCCCTGGGCAG ATGGTGCACTTGACTTCTGAGGAGAAGAACTGCA Opossum TCACTACCATCTGGTCTAAGGTGCA...

The fractal scaling properties of the heartbeat time series are studied in a controlled ergometric regime using the Hurst rescaled range R/S analysis. The long-time ”memory effect” quantified by the value of the Hurst exponent H > 0.5 is found to increase during progresive physical activity at healthy subjects in contrast to those having stable angina pectoris (SAP), where it is decreasing. We ...