for a graph g, let d(g) be the set of all strong orientations of g. the orientationnumber of g is min {d(d) |d belongs to d(g)}, where d(d) denotes the diameterof the digraph d. in this paper, we determine the orientation number for some subgraphs of complete bipartite graphs.

Functionally important sites in the predicted first and fourth extracellular linkers of the type IIa Na+/Pi cotransporter (NaPi-IIa) were identified by cysteine scanning mutagenesis (Ehnes et al., 2004). Cysteine substitution or modification with impermeant and permeant methanethiosulfonate (MTS) reagents at certain sites resulted in changes to the steady-state voltage dependency of the cotrans...

The behavior of dynamic strain aging (DSA) in a Zr-1.5Nb-0.4Sn-0.2Fe-0.1Cr alloy strip was investigated at temperature ranges 25–600 °C via tensile test. test performed two different rates 8.33 × 10<sup>-5</sup> and 1.67 10<sup>-2</sup> s<sup>-1</sup>. shear stress the revealed linear dependency on when specimens were tested under higher rate (1.67 s<sup&g...

As the interface between land and water, coastlines are highly dynamic intricately tied to sediment budget. These regions have a high functional diversity require enlightened management preserve their value for future. In this study we assess changes São Paulo State (SE Brazil) coastline over last 36 years. The innovatively employs big data remote sensing techniques multivariate statistical mod...

In the last few years, Poland has experienced a significant increase in photovoltaic (PV) installations. A noticeable contribution to this dynamic growth belongs prosumers. This paper presents energy efficiency analysis of nine prosumers’ PV installations located South-Eastern Poland. Eight systems are grid-connected and one is hybrid (PV with storage). New technology modules efficiencies betwe...

Abstract Background: Stroke is the third cause of mortality and not only leads to dependency, which is a great social, individual and cultural problem, but also can affect the physiology, immune system and coagulation system such as plasma fibrinogen, and it may potentially increase the risk of stroke. This study investigated the relationship of opium dependency and stroke. Method...