Recent sub-arcsecond resolution surveys of the dust continuum emission from nearby protoplanetary disks showed a strong correlation between sizes and luminosities disks. We aim to explain origin (sub-)millimeter size-luminosity relation (SLR) $68\%$ effective radius ($r_{eff}$) with their luminosity ($L_{mm}$), models gas evolution in simple viscous accretion disk radiative transfer calculation...

background: thalassemia syndromes are the most prevalent single gene disorders in iran. this study aimed to evaluate the effect of different types of beta-globin gene mutations, co-inheritance of alpha-globin gene mutations and/or xmn1 snp on disease phenotype in a large cohort of iranian patients. subjects and methods: in total, 433 patients were clinically classified into β-thalassemia major ...