A network evolution with predicted tail and extremal indices of PageRank the Max-Linear Model used as node influence in random graphs is considered. The index shows a heaviness distribution tail. measure clustering (or local dependence) stochastic process. cluster implies set consecutive exceedances process over sufficiently high threshold. Our recent results concerning sums maxima non-stationa...

eristalis tenax , belonging to order diptera, family syrphidae seldomly causes in­tes­tinal myiasis. intestinal myiasis caused by e. tenax larvae is a rare manifesta­tion found in both humans and other vertebrate animals. we report a 22-year-old woman presented with this myiasis. the larva in her stool sample was identified as e. tenax related to its typical morphology and authentic clues. lack...

the objective of this study was to investigate the relationship among body weight and fat-tail measurements with fat-tail weight by using multiple regression and principal component analysis. the eleven characters includes, body weight, fat-tail length, fat-tail circumference, width and diameters in 3 position of upper, middle and lower before the slaughter, and also fat-tail weight after the s...

This paper studies a procedure to combine individual forecasts that achieve theoretical optimal performance. The results apply to a wide variety of loss functions and no conditions are imposed on the data sequences and the individual forecasts apart from a tail condition. The theoretical results show that the bounds are also valid in the case of time varying combination weights, under specific ...

This paper considers a stable GI|GI|1 queue with a regularly varying service time distribution. We derive the tail behaviour of the integral of the queue length process Q(t) over the busy period. We show that an occurrence of a large integral is related to an occurrence of a large maximum of the queueing process over the busy period and we exploit asymptotic result for this variable. We also pr...

This paper introduces a semi-empirical model to predict the downwash gradient at horizontal tail of three-lifting-surface aircraft. The superposition principle applied well established formulations valid for two lifting surfaces is not reasonable approach calculate canard-wing-tail layout, and this demonstrates that such basic technique leads incorrect results. Therefore, an ad hoc prediction p...

We study bivariate stochastic recurrence equations with triangular matrix coefficients and we characterize the tail behavior of their stationary solutions W=(W1,W2). Recently it has been observed that W1,W2 may exhibit regularly varying tails different indices, which is in contrast to well-known Kesten-type results. However, only partial results have derived. Under typical “Kesten–Goldie” “Grey...

The special properties of surfactants are important in a wide variety of applications in chemistry, biology, engineering, and other areas. These molecules are said to be amphipathic; i.e., they have distinct hydrophilic (polar) and hydrophobic (non polar) regions. The polar region, called the head group, may be neutral, cationic, anionic, or zwitterionic. The hydrophobic tail has one or more ch...

Consider a random polynomial Gn(z) = ξnz+ · · ·+ξ1z+ξ0 with i.i.d. complex-valued coefficients. Suppose that the distribution of log(1 + log(1 + |ξ0|)) has a slowly varying tail. Then the distribution of the complex roots of Gn concentrates in probability, as n → ∞, to two centered circles and is uniform in the argument as n → ∞. The radii of the circles are |ξ0/ξτ |1/τ and |ξτ/ξn|, where ξτ de...

I propose a new measure of common, time-varying tail risk for large cross sections of stock returns. Stock return tails are described by a power law in which the power law exponent is allowed to transition smoothly through time as a function of recent data. It is motivated by asset pricing theory and is estimable via quasi-maximum likelihood. Estimates indicate substantial time variation in sto...