In the course of our ongoing search for serendipitous high-redshift Lyα emission in deep archival Keck spectra, we discovered two very high equivalent width (W obs λ ∼> 450 Å, 2σ) Lyα emission line candidates at z ∼ 3 in a moderate dispersion (λ/∆λ ≃ 1200) spectrogram. Both lines have low velocity dispersions (σv ∼ 60 km s−1) and deconvolved radii r ≈ 1 h 50 kpc. We argue that the lines are Lyα...

The evolution of self-adaptive systems poses the problems of their coherence and the resume of the systems’ functioning taking into account the accomplished work. While they are the base of the self-adaptive systems, these two aspects are not considered in the related works. In this paper, we propose a methodological based approach. In such approach, the adaptive system’s evolution is thought a...

knowledge society as a space originated from promotion of the (explicit/implicit) social knowledge, and information society as a space to have access to information are two societies complete each other. libraries (in a vast meaning), because of their efforts to collect and store the produced knowledge, contribute in promoting the knowledge society; and as spaces make the information access abl...