The use of alkaline residue from the acetylene industry (carbide slag, CS) as in-bed sorbent to remove H2S syngas biomass/waste fluidized bed (FB) gasification was investigated. Measurements were conducted in a laboratory FB applying differential conversion technique, tracking reaction using both gas measurements and solid analysis. Apparent kinetics obtained, without external mass transfer lim...

Effects of fiber vs starch energy supplements on endogenous growth hormone (GH), insulin-like growth factor (IGF-1) and animal performance from weaning to breeding age were evaluated in 18, 9-mo-old beef heifers. Heifers had ad libitum access to wheat silage plus an average daily supplement intake of 1) 4.08 kg corn-soybean meal (SBM) (high energy-starch, HS), 2) 4.54 kg soyhulls (SH)-SBM (high...

The hydrogen sulfide has been recently claimed to have an important role in the cardiovascular system, as well in the central nervous system, but its action seems directly connected to the presence of NO/NO-derivatives. We want to report here chemical evidences that suggest for the H2S a role as a cofactor, able to induce NO release from NO-donors, more than a direct neurotransmitter. In the la...

The stability of potassium tetrathiomolybdate was studied in vitro using solutions with molybdenum, hydrogen ion and phosphate concentrations similar to those normally found in the rumen. Under these conditions K2[MoS4] hydrolysed rapidly and as a result the solution contained [moS4]2-, [MoOS3]2-, [MoO2S2]2-, [HS]- and H2S in equilibrium. In view of this hydrolysis, in vivo studies of thiomolyb...

BACKGROUND Breathing hydrogen sulfide (H2S) has been reported to induce a suspended animation-like state with hypothermia and a concomitant metabolic reduction in rodents. However, the impact of H2S breathing on cardiovascular function remains incompletely understood. In this study, the authors investigated the cardiovascular and metabolic effects of inhaled H2S in a murine model. METHODS The...

The key aspects of a gauge-invariant Lagrangian description of massive and massless half-integer higher-spin fields in AdS spaces with a two-row Young tableaux Y (s1, s2) are presented in an unconstrained description, as well as in off-shell formulations with algebraic constraints, on the basis of BFV-BRST operators for non-linear operator superalgebras, encoding the initial conditions realized...

Standard software based on the collocation method for differential equations, delivers a continuous approximation (called the collocation solution) which augments the high order discrete approximate solution that is provided at mesh points. This continuous approximation is less accurate than the discrete approximation. For ’non-standard’ Volterra integro-differential equations with constant del...