We present optimal competitive algorithms for two interrelated known problems involving Steiner Arborescence. One is the continuous problem of the Symmetric Rectilinear Steiner Arborescence (SRSA), studied by Berman and Coulston as a symmetric version of the known Rectilinear Steiner Arborescence (RSA) problem. A very related, but discrete problem (studied separately in the past) is the online ...

Background Neonatal sepsis is one of the most critical illness in neonates that is responsible for a great proportion of morbidity and mortality in neonates so early diagnosis and identification of high risk cases is a challenging aim of our study. The purpose of this study was to investigate the prognostic value of red cell distribution width (RDW), in neonatal sepsis at the time of admission ...

UNLABELLED Cortical and hippocampal oscillations play a crucial role in the encoding, consolidation, and retrieval of memory. Sharp-wave associated ripples have been shown to be necessary for the consolidation of memory. During consolidation, information is transferred from the hippocampus to the neocortex. One of the structures at the interface between hippocampus and neocortex is the subiculu...

If the degree distribution is chosen carefully, the irregular LDPC codes can outperform the regular ones. In this paper, we proposed an LDPC coded BICM scheme in image transmission system to improve both efficiency and reliability. Simulation results show that LDPC codes are good coding schemes over fading channel in image communication with lower system complexity. Simultaneously, irregular co...

Let M be a strongly pseudoconvex complex manifold which is also the total space of a principal G-bundle with compact base M/G. Assume also thatG acts onM by holomorphic transformations. For such M , we provide a simple condition on forms α sufficient for the regular solvability of u = α and other problems related to the ∂̄-Neumann problem on M . Similar properties are shared by b.

Cellular solids are known to exhibit size effects, i.e., differences in the apparent effective elastic moduli, when specimen becomes comparable cell size. The present contribution employs direct numerical simulations (DNS) of mesostructure investigate influences porosity, shape pores, and thus material distribution along struts, orientation loading on effects moduli regular honeycomb structures...

‎let $v$ be a vector space over a field $f$ of characteristic $pgeq 0$ and let‎ ‎$t$ be a regular subgroup of the affine group $agl(v)$‎. ‎in the finite dimensional case we show that‎, ‎if $t$ is abelian or $p>0$‎, ‎then $t$ is unipotent‎. ‎for $t$ abelian‎, ‎pushing forward some ideas used in [a‎. ‎caranti‎, ‎f‎. ‎dalla volta and m‎. ‎sala‎, ‎abelian regular subgroups of the affine group and r...

This paper highlights the effects of cell wall material strain hardening and density functional gradation (FG) on in-plane constant-velocity dynamic crushing response and impact behavior of hexagonal honeycombs. Results show that cell wall material strain hardening influences the distinct deformation modes induced by crushing velocity generally observed in regular hexagonal honeycombs. This is ...

in this paper, we introduce and study the concept of $r$-fuzzy regular semi open (closed) sets in smooth topological spaces. by using $r$-fuzzy regular semi open (closed) sets, we define a new fuzzy closure operator namely $r$-fuzzy regular semi interior (closure) operator. also, we introduce fuzzy regular semi continuous and fuzzy regular semi irresolute mappings. moreover, we investigate the ...