This paper reports a computational method for describing the conformational flexibility of very large biomolecular complexes using a reduced number of degrees of freedom. It is called the substructure synthesis method, and the basic concept is to treat the motions of a given structure as a collection of those of an assemblage of substructures. The choice of substructures is arbitrary and someti...

Resource description framework (RDF) and Property Graph databases are emerging technologies that are used for storing graph-structured data. We compare these technologies through a molecular biology use case: glycan substructure search. Glycans are branched tree-like molecules composed of building blocks linked together by chemical bonds. The molecular structure of a glycan can be encoded into ...

N-body simulations that follow only a collisionless dark matter component have failed to produce galaxy halos or substructure within dense environments. We investigate the `over-merging' problem analytically and with numerical simulations, by calculating dissolution timescales of halos due to physical and arti cial dynamical e ects. The numerical resolution that has recently been attained is su...

Using Chandra archival data, we have begun a study to quantify the evolution of cluster morphology with redshift. To quantify cluster morphology, we use the power ratio method developed by Buote and Tsai (1995). Power ratios are constructed from moments of the twodimensional gravitational potential and are, therefore, related to a cluster’s dynamical state. Our sample will include around 50 clu...

ABSTRiCT We discuss the observability of flavor changing transitions among heavy quarks in e+e-collisions: anomalous thresholds e+e-+& + &', anomalous flavored quarkonia formation e+e-V(Q@) d an anomalous decay modes of heavy quarkonia (Q&)-Q + @, Q + q + 7,. .. etc. We express cross-sections and partial widths in terms of a substructure scale and show what kind of limits can be obtained.

The evolution of substructure embedded in non-dissipative dark halos is studied through N-body simulations of isolated systems, both in and out of initial equilibrium, complementing cosmological simulations of the growth of structure. We determine by both analytic calculations and direct analysis of the N-body simulations the relative importance of various dynamical processes acting on the clum...