We analyze the statistical properties of Poincaré recurrences of Homo sapiens, mammalian, and other DNA sequences taken from the Ensembl Genome data base with up to 15 billion base pairs. We show that the probability of Poincaré recurrences decays in an algebraic way with the Poincaré exponent β≈4 even if the oscillatory dependence is well pronounced. The correlations between recurrences decay ...

the postgastrectomy recurrence rate is as high as 30-65%, with 5-year overall survival rates of <20%. local recurrence is very common which occurs in 38-45% of cases. the most common sites of locoregional recurrence are the gastric remnant at the anastomosis, the gastric bed, and the regional nodes. the recurrence may occur as early and late events after gastrectomy. most recurrences are early,...

a total of70 children aged 6 to 15 years with rheumatic fever and completed in-hospital data were reviewed from 19xx to 1993. in 5x.6% of patients this was the first attack of disease, while in 41.4&apos;10 the episode represented a recurrence. noncompliance of antimicrobial prophylaxis was noted in all of the subjects with recurrences. 61.4% of cases gave a previous history of sore throat, and...

BACKGROUND A wide variety of follow-up strategies are used for patients with colorectal cancer (CRC) after curative surgery. The aim of this study is to review the evidence of the impact of different follow-up strategies in patients with nonmetastatic CRC after curative surgery, in relation to overall survival and other outcomes. PATIENTS AND METHODS A systematic search of PubMed, EMBASE, SCO...

BACKGROUND About 50% of the patients with neck recurrences after the treatment of oral squamous cell carcinoma are not considered candidates for further treatment, and reported survival is generally poor. OBJECTIVE To evaluate the prognostic importance of neck recurrences and results of salvage treatment in patients with oral carcinoma. PATIENTS Five hundred thirteen patients with squamous ...

newcastle disease (nd) is one of the most important diseases that affect birds; the epizootic nature of the disease has caused severe economic losses in the poultry industry worldwide. in this experiment nd virus (ndv) was inactivated by two different chemicals binary ethylenimine (bei) and formaldehyde. formaldehyde was used at 0.1%, while bei was used at concentrations of 1 to 4 mm. ndv inact...

Cauchy–Euler differential equations surfaced naturally in a number of sorting and searching problems, notably in quicksort and binary search trees and their variations. Asymptotics of coefficients of functions satisfying such equations has been studied for several special cases in the literature. We study in this paper a very general framework for Cauchy–Euler equations and propose an asymptoti...

In this paper a simple algorithm to test equality of binary trees currently used in symbolic computation, uniication, etc. is investigated. Surprisingly enough, it takes O(1) steps on average to decide if a given pair of trees of total size n are equal or not if the uniform probability model for the input is assumed. Moreover, other similar algorithms have qualitatively the same average complex...

density, viscosity and refractive index of pure, binary and ternary mixtures of diethanolamine (dea) and methyl diethanolamine (mdea) with water have been measured at different temperatures from 288.15 k to 323.15 k at atmospheric pressure. also, this study presents the effects of mixture composition and temperature upon these thermo- physical properties. to measure the density and refractive i...