magnesium alloys in liquid-phase condition form surface oxide films due to their high rate of oxidation. oxide films enter the melt as a result of surface turbulence, and remain inside the workpiece after solidification. the incoherent nature of their interface causes decreases in mechanical properties and reliability of castings. the effect of critical velocity and greater velocities of enteri...

Purpose – The purpose of this paper is to provide further insight into operations management of the Product-Service (P-S) transition, known as servitization, and the resulting Product Service System (PSS) offerings. In exploring the dynamics of product-service transition this paper adopts a Service-Dominant (S-D) logic view of value creation, using it as a lens through which to explore value pr...

Alginate-metal complexes were prepared with divalent (Ca, Ba, Zn) and trivalent metals (Fe, Al) via congealing method in form of beads. Alginate mixed metals (Ca & Fe) complexes were also prepared by simultaneous and consecutive congealing. The studied beads were blank beads and racemic ketoprofen (KTP) loaded beads. Metal content was determined by atomic absorption spectroscopy and was 1.8% to...

there are several methods for measuring the performance and value of a company. these are, earnings per share, earnings growth rate, dividend per share, rate of return on equity and free cash flow. the purpose of this article is to show that all these criteria have some deficiencies and will introduce a new criterion called economic value added (eva). eva is computed by subtracting capital char...

The offered approach is based on the establishment of the functional dependence between river water discharge (Q) and suspended ms ,in a number of observations, which noticeably differs from the mean value (R) of subsequent allocated period(s). The earliest period anthropogenic component during the subsequent period(s) is the difference between an actual suspended sediment yield and its hypothe...

Objective(s): Infections by Staphylococcus aureus remain an important health problem. The aims were to detect mecA, staphylococcal cassette chromosome mec (SCCmec), accessory gene regulator (agr), and integrons in S. aureus and to investigate the relationship of agr types with antibiotic resistance of isolates.  Materials and Methods: In this cross-sectional study, 70 S. aureus isolates w...

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