Is HE 0436–4717 Anemic? A deep look at a bare Seyfert 1 galaxy

Discovery of a Narrow-Line Seyfert 1 galaxy

We have discovered a Narrow-Line Seyfert 1 (NLS1) galaxy and identified it with an ultrasoft X-ray source (RX 215319-1514) detected with ROSAT . We present its X-ray and optical spectral characteristics. Its redshift is found to be 0.0778±0.0002. Its optical spectrum shows fairly strong Fe II emission lines, and its X-ray spectrum has an extremely steep power-law index of Γ ≥4, making it an ext...

A Microscopic Look at Liquid Helium: the He Impurity Case

The description of the properties of liquid Helium is a challenge for any microscopic many–body theory. In this context, we study the ground state and the excitation spectrum of one He impurity in liquid He at T = 0 with the aim of illustrating the power of the correlated basis function formalism in describing heavily correlated systems. The strong interatomic interaction and the large density ...

A Look at the Challenges of Boundary-Spanner Academic Leaders

The present study was an exploratory sequential mixed method approach, so the qualitative section of the study was done by descriptive phenomenology method. The participants in the qualitative section included academic administrators with managerial experience who by criterion sampling and saturation in the research findings, 12 were selected for the interview. Research tools in the section wer...

A Different Look at Peer-Reviewing of Articles

A look at signification of ‘then’ in the Holy Quran

‘Then’ as one of conjunctions, has many usages in Arabic language. Since one of its usages is in the religious texts and the Holy Quran so that its different usages effect on the style, meaning, and concepts, and also, due to the sensitivity and significance of the Holy Quran, understanding the exact meaning of this conjunction, i.e. ‘then’, and studying its various stat...