An integer sequence π is said to be graphic if it is the degree sequence of some simple graph G. In this case we say that G is a realization of π. Given a graph H, and a graphic sequence π we say that π is potentially H-graphic if there is some realization of π that contains H as a subgraph. We define σ(H, n) to be the minimum even integer such that every graphic sequence with sum at least σ(H,...

Endomycorrhizal fungi are spora-carrying organisms that can survive in heavy metalcontaminated environments. The goal of this study was to investigate endomycorrhizal from metal-affected areas and determine an effective mix organic culture media increase the number diameter spores. In Sorowako, Indonesia, were isolated rhizosphere of: rice husk charcoal, sand, zeolite (KM1); sawdust (KM2); coco...

1. The steady state kinetics for the oxidation of ferrocytochrome c by yeast cytochrome c peroxidase are biphasic under most conditions. The same biphasic kinetics were observed for yeast iso-1, yeast iso-2, horse, tuna, and cicada cytochromes c. On changing ionic strength, buffer anions, and pH, the apparent Km values for the initial phase (Km1) varied relatively little while the corresponding...

The latter, by definition, means that the Lie algebra of H is the span of eigenspaces of Ad(gt), t > 0, with eigenvalues bigger than 1 in absolute value. The space X def = G/Γ can be identified with the space of unimodular lattices in R, on which G acts by left translations. Denote by π the natural projection G → X, g 7→ gΓ, and for any z ∈ X let πz : G → X be defined by πz(g) = gz. Also denote...

The transport routes for threonine in a primate kidney epithelial cell line (BSC-1) grown as monolayer in continuous cell culture were studied. We discovered at least four different transport systems for threonine uptake. The Na(+)-dependent route shows biphasic kinetics with a low and high affinity parameter. The apparent kinetic constants for Km1 and Km2 were 0.3 and 36 mM with apparent Vmax ...

Ambivalent data structures are presented for several problems on undirected graphs. They are used in finding the k smallest spanning trees of a weighted undirected graph in Oem log [3(m, n)+min{p/2, km1/ 2 }) time, where m is the number of edges and n the number of vertices in the graph. The techniques can be extended to find the k smallest spanning trees in an embedded planar graph in O(n + k(...

Abstract. We study the symplectic geometry of the moduli spaces Mr = Mr(S ) of closed n-gons with fixed side-lengths in the 3-sphere. We prove that these moduli spaces have symplectic structures obtained by reduction of the fusion product of n conjugacy classes in SU(2), denoted C r , by the diagonal conjugation action of SU(2). Here C n r is a quasi-Hamiltonian SU(2)-space. An integrable Hamil...

The tricyclic antidepressant amitriptyline and the H1-receptor antagonist diphenhydramine are conjugated in human liver microsomes fortified with UDP-glucuronic acid at their tertiary amino groups with the formation of quaternary ammonium glucuronides. The kinetics of the reactions were found to be biphasic with apparent KM1 and KM2 values of 1.4 microM and 311 microM for amitriptyline and 2.6 ...