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
Public sphere and "what is not" discussed. Benhabib argues for feminists to counter the popular public discourse in their own counter public. The public sphere was long regarded as men's domain whereas women were supposed to inhabit the private domestic sphere. A distinct ideology that prescribed separate spheres for women and men emerged during the industrial revolution. The concept of heteronormativity is used to describe the way in which those who fall outside of the basic male/female dichotomy of gender or whose sexual orientations are other than heterosexual cannot meaningfully claim their identities, causing a disconnect between their public selves and their