Pb[PtBi 6 I 12 ] – Infinite Chains of Heavy Atom Clusters

Nonrigid Group Theory of Water Clusters ( Cyclic Forms): (H2O)i for 2<=i<=6

The character table of the fully nonrigid water cluster (cyclic forms), (H_{2}O){_i}, with C{_ih} symmetry derived for the first time, for 2<=i <=6. The group of all feasible permutations is the wreath product of groups S{_i}[S{_2}] which consists of i!2i operations for i = 2, ..., 6 divided into ( w.r.t) 5, 10, 20, 36, 65 conjugacy classes and 5, 10, 20, 36, 65 irreducible representations resp...

Contiguous Sphere Clusters. I. Isomorphic Chains

One of the remarkable phenomena (still unexplained) concomitant with the transmission of the "code of heredity" to succeeding generations (in sexually reproducing organisms) is "pairing" of the chromosomes at zygotene: That is, during the zygotene stage of meiosis (the process whereby the sex cells are formed) homologous chromosomes become "contiguous" at homologous sites (the chromomers) throu...

Different MHC Class I Heavy Chains

Heavy-atom derivatization.

Most of the standard methods of solving macromolecular structures involve producing a protein crystal that is derivatized by an anomalous scatterer or heavy atom (MIR, SIRAS, MAD, SAD etc.). The theoretical methodology which underpins the extraction of phase information from such derivatives is widely available in the literature. In addition, there are comprehensive sources of information on th...

Infinite chains of kinematic points

In formulating the stability problem for an infinite chain of cars, state space is traditionally taken to be the Hilbert space l2, wherein the displacements of cars from their equilibria, or the velocities from their equilibria, are taken to be square summable. But this obliges the displacements or velocity perturbations of cars that are far down the chain to be vanishingly small and leads to a...