In dual outflow continuous fermenters on a 75:25 hay/barley diet, feed degradation and protein synthesis by mixed rumen microbes were tested in relation to the concentrations of HPO4(2-), HCO3- and Cl- and Na+/K+ ratio in artificial saliva, by applying a 16-run Franquart design, and by fitting second-order polynomial models. The HPO4(2-), HCO3-, Cl- concentrations and Na+/K+ ratio ranged from 0...

growth-promotant activity in chicks6). As in the related compounds L-68 1 ,2177) and the phenelfamycins8), A83016F lacks the pyridone moiety commonin most members of this class. The strain A83016 also produces several kinamycin-type antibiotics including the novel compound A83016A9). This paper describes the isolation, structural elucidation, and antimicrobial activity of A83016F. Strain A8301 ...

Thiazolidinediones (TZDs) have been found to act as effective quorum sensing quenchers, capable of preventing biofilm formation. Our previous studies demonstrated a profound antibiofilm effect of the TZD derivative thiazolidinedione-8 (S-8), either in solution or incorporated into a sustained-release membrane (SRM-S-8) under batch conditions. In the present study, we used a constant depth film ...

We prove the following theorem. Let G = (V, E) be a planar bipartite graph, embedded in the etrclidean plane. Let 0 and I be two of its faces. Then there exist pairwise edge-disjoint cuts C,, . . . . C, so that for each two vertices u, w with U, w E 0 or V, WE I, the distance from u to w in G is equal to the number of cuts C, separating u and w. This theorem is dual to a theorem of Okamura on p...

Motivated by turbulent drag reduction by minute concentrations of polymers we study the effects of minor viscosity contrasts on the stability of hydrodynamic flows. The key player is a localized region where fluctuations are produced by interactions with the mean flow (the "critical layer"). We show that a layer of weakly space-dependent viscosity placed near the critical layer has a very large...