crystallographic form
121Debye-Hückel equation — The Debye Hückel limiting law, named for its developers Peter Debye and Erich Hückel, provides one way to obtain activity coefficients Ref|Harris. Activities, rather than concentrations, are needed in many chemical calculations because solutions… …
122Single crystal — A huge KDP crystal grown from a seed crystal in a supersaturated aqueous solution at LLNL which is to be cut into slices and used on the National Ignition Facility for frequency doubling and tripling. A single crystal or monocrystalline solid is… …
123NF-κB — Mechanism of NF κB action. In this figure, the NF κB heterodimer between Rel and p50 proteins is used as an example. While in an inactivated state, NF κB is located in the cytosol complexed with the inhibitory protein IκBα. Through the… …
124Icosahedral symmetry — A Soccer ball, a common example of a spherical truncated icosahedron, has full icosahedral symmetry. A regular icosahedron has 60 rotational (or orientation preserving) symmetries, and a symmetry order of 120 including transformations that… …
125Point groups in two dimensions — In geometry, a point group in two dimensions is an isometry group in two dimensions that leaves the origin fixed, or correspondingly, an isometry group of a circle. It is a subgroup of the orthogonal group O(2), the group of all isometries which… …
126Hermann-Mauguin notation — is used to represent the symmetry elements in point groups, plane groups and space groups. It is named after the German crystallographer Carl Hermann and the French minerologist Charles Victor Mauguin. This notation is sometimes called… …
127Indium halides — There are three sets of indium halides, the trihalides, the monohalides and a surprising number of intermediate halides. In all of the trihalides the oxidation state of indium is +3 and their proper names are indium(III) fluoride, indium(III)… …
128Hfq protein — The Hfq protein was discovered in 1968 as an E. coli host factor that was essential for replication of the bacteriophage Qβ.cite journal | author = August JT, Eoyang L, De Fernandez MT, et al | title = Phage specific and host proteins in the… …
