Results obtained in the present study indicate that B. subtilis LS 1-2 can be used as a growth promoter in broiler diets and can improve intestinal microbial balance and gut health of broilers. (C) 2011 Elsevier Ltd. All rights reserved.”
“Macroporous temperature-sensitive polyN-[3-(dimethylaminopropyl)] methacrylamide hydrogels were synthesized by free-radical crosslinking polymerization of the monomer N-[3-(dimethylaminopropyl)] methacrylamide and the crosslinker N,N’-methylenebisacrylamide in aqueous solutions at 22 degrees C. Poly(ethylene glycol) (PEG) with a molecular weight of 1000 g/mol was used as the pore-forming agent during the polymerization reaction. The BB-94 concentration of PEG in the polymerization

solutions were varied between 0 and 18 wt %, whereas the crosslinker (N,N’-methylenebisacrylamide) concentration was fixed at 2 wt % (with respect to the monomer). The effects of the PEG concentration on the thermo-induced phase-transition behavior

and the chemical structure, interior morphology, and GW4064 swelling/deswelling kinetics were investigated. Normal-type hydrogels were also prepared under the same conditions without PEG. An interesting feature of the swelling behavior of both the normal-type and macroporous hydrogels was the reentrant phase transition, in which the hydrogels collapsed once and reswelled as the temperature was continuously increased. Scanning electron micrographs revealed that the interior network structure of the hydrogels prepared in PEG concentration in the polymerization solution. This more porous matrix provided numerous water channels for water diffusion in or out of the matrix and, therefore, and improved responsive rate to external temperature change during the deswelling and swelling LY2835219 in vitro processes. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 547-552, 2009″
“Electronic structure calculations are used to investigate the stability of fluorine-vacancy (F(n)V(m)) clusters in germanium (Ge). Using mass action analysis, it is predicted that the F(n)V(m) clusters can remediate the concentration of free

V considerably. Importantly, we find that F and P codoping leads to a reduction in the concentration of donor-vacancy (DV) pairs. These pairs are responsible for the atomic transport and the formation of D(n)V clusters that lead to a deactivation of donor atoms. The predictions are technologically significant as they point toward an approach by which V-mediated donor diffusion and the formation of inactive D(n)V clusters can be suppressed. This would result in shallow and fully electrically active n-type doped regions in Ge-based electronic devices. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3224900]“
“The aim of this investigation was to evaluate whether, in the nutritional management of commercial feedlots, copper (Cu) supplementation is justified to maintain the physiological requirements.