To test the hypothesis that the uptake capacity of the bovine small intestine for glucose is upregulated to match or slightly exceed glucose delivery, glucose was continuously infused into the proximal duodenum of four cannulated holstein heifers. Every 3 days, infusion rates were increased by an average of 34 mmol/h. A model of glucose disappearance from multiple boluses of intestinal digesta ...

A target set selection model is a graph G with threshold function τ : V(G) → N upper-bounded by the vertex degree. For given model, S0 ⊆ if can be partitioned into non-empty subsets S0, S1,....,St such that, for all i∈{1,....,t}, Si contains exactly every v having at least τ(v) neighbors in S0∪⋯∪Si−1. We say that t activation time tτ(S0) of S0. The problem of, finding minimum size has been exte...

At the end of its life, a very massive star is expected to collapse into black hole. The recent detection an 85 Msun hole from gravitational wave event GW 190521 appears present fundamental problem as how such heavy holes exist above approximately 50 pair-instability limit where stars are be blown pieces with no remnant left. Using MESA, we show that for stellar models non-extreme assumptions, ...