The electron affinity (EA) of the superheavy element Og is calculated by use relativistic Fock-space coupled cluster (FSCC) and configuration interaction methods. FSCC operator expansion includes single, double, triple excitations treated in a nonperturbative manner. Gaunt retardation electron-electron interactions are taken into account. Both methods yield results that agreement with each othe...

hemoglobin is a tetrameric oxygen transport protein in animal bodies. however, there is a paucity of information regarding differences between alpha and beta subunits of hemoglobin in terms of oxygen affinity. the sequential model of koshland, nemthy and filmer (knf model) has attributed similar affinities to both alpha and beta subunits. the main purpose of the present study is to construct a ...