Abstract The new Azo-Schiff ligand type N2O2 have been prepared through two steps. The
first one Included the reaction between one equivalent of 2, 3-di methyl aniline and one …

In this work, we have studied new correlations between velocity dispersion of the bulge and
bulge luminosity, using 40 images of spiral galaxies. This paper is depend on two …

Operational style is based on representing different integro-differential mathematical
functions in terms of matrices. In this research, Haar wavelet collocation points and …

In this study, a novel azo-azomethine ligand [6 [2-hydroxy-4-((3-nitrophenyl) diazenyl)-1-
phenyl] imine penicillanic acid][HNDIP] is synthesized from [2-hydroxy-4-((3-nitrophenyl) …

In this wor, We compared a new value of supermassive blac hole masses (SMBH) in
Andromeda galaxy has been estimated using different methods (first, direct methods eg gas …

In the presented work, the optical and electrical properties of composite materials (PVA-PEG-
Sr2O3) were measured, as the electrical properties were verified at various frequencies in …

Introduction: Craniotomy includes the temporary removal of bone flap from calvarium to
access the intracranial contents, which is usually used to reduce intracranial pressure …

The aim of this paper is to study the effects of gamma radiation on the structural and optical
properties of two types of Gum Arabic, one from Sudan and another from Malaysia. The Gum …

Time variation of constants of nature is still a question of debate among astronomers,
physicists, geologists, and palaeontologists. But are the fundamental physical constants …