Drug metabolism and disposition: the biologicalâ€¦

2000

In the present study, we evaluated the metabolic O-methylation of several catechol-containing tea polyphenols by human placental catechol-O-methyltransferase (COMT). (-)-Epicatechin, (+)-epicatechin,â€¦ (More)

We obtain a necessary and su cient condition for tournaments to possess a min-max relation on packing and covering directed cycles, together with strongly polynomial time algorithms for the feedbackâ€¦ (More)

The graphs and the digraphs considered in this paper are all finite. No loops are permitted. In order to state our problems we need to generalize the definitions of separating systems of a finiteâ€¦ (More)

We introduce networks with additive losses and gains on the arcs. If a positive flow of x units enter an arc a, then x + g(a) units exit. Arcs may increase or consume flow, i.e., they are gainy orâ€¦ (More)

Let G be a graph of order n, and let a and b be integers such that 1 â‰¤ a < b. We show that G has an [a, b]-factor if Î´(G) â‰¥ a, n â‰¥ 2a + b + a2âˆ’a b and max{dG(u), dG(v)} â‰¥ an a+b for any twoâ€¦ (More)

In this paper we study the computational complexity of arbitrage in a frictional foreign exchange market with bid-ask spreads, bound and integrality constraints. We show that the problem of detectingâ€¦ (More)