A flag matroid can be viewed as a chain of matroids linked by quotients. Flag matroids, of which relatively few interesting families have previously been known, are a particular class of Coxeter matroids. In this paper we give a family of flag matroids arising from an enumeration problem that is a generalization of the tennis ball problem. These flag matroids can also be defined in terms of lat...

Abstract We review lattice results related to pion, kaon, D -meson, B and nucleon physics with the aim of making them easily accessible nuclear particle communities. More specifically, we report on determination light-quark masses, form factor $$f_+(0)$$ f + (</m...

cDNAs and Antibodies Human cDNAs were used in this study unless indicated otherwise. Wild-type and mutant Nct-His, PS1, APH-1aL-His, HA-PEN-2, Flag-PEN-2, C99-Flag, nFlag-C99, N100-Flag/His, and His-Syt1 cDNAs were cloned into pFASTBac and baculoviruses were generated using the Bac-to-Bac Baculovirus Expression System (Invitrogen). pFASTBac/C99-Flag encodes C-terminally Flag-tagged C99 with a M...

Video resolution can be improved when a group of corresponding frames from two or three videos are registered, which are taken by two or three camcorders with fixed focus length and position. An efficient algorithm for constructing high quality video from videos is proposed. In order to reduce registration errors, we apply a gradient descent algorithm to the matching images, which results in an...

We study degree sequences for simplicial posets and polyhedral complexes, generalizing the well-studied graphical degree sequences. Here we extend the more common generalization of vertex-to-facet degree sequences by considering arbitrary face-to-flag degree sequences. In particular, these may be viewed as natural refinements of the flag f -vector of the poset. We investigate properties and rel...

The flag of registry and classification society are an integral part of the target factors used by Port State Control authorities (PSC) when deciding on vessels to select for inspection. A shipowner may then have an interest in changing the flag of registry (flag-hopping) and classification society (class-hopping) to avoid future controls. Using data on PSCs collected over 6 years from 7,500 ve...