Half sphere exposure Half sphere exposure Half Sphere Exposure (HSE) is a protein solvent exposure measure that was first introduced by . Like all solvent exposure measures it measures how buried amino acid residues are in a protein. It is found by counting the number of amino acid neighbors within two half spheres of chosen radius around the amino acid. The calculation of HSE is found by dividing a contact number (CN) sphere in two halves by the plane perpendicular to the Cβ-Cα vector. This simple division of the CN sphere results in two strikingly different measures, HSE-up and HSE-down. HSE-up is defined
Mutha Is Half a Word Mutha Is Half a Word Mutha Is Half A Word is the debut album by American comic and actress LaWanda Page, released in 1971 on the Laff Records label. The comic, born in Ohio and raised in St. Louis, MO as Alberta Peal, used only the first name of her stage name for the duration of her recordings with Laff Records and for the duration of her career as a stand-up comedian, which began in the 1960s after careers as a strip dancer and vaudeville performer. Some of Page's most famous stand-up monologues are included in this album including "The