Purpose.Railway safety during the operation of freight cars largely depends on the reliability, fatigue resistance and durability of the cast bearing elements of the three-element bogie, especially the side frames.Premature failure of cast frames occurs mainly due to undetected latent defects in the foundry.To eliminate these problems, it is advisa
A shear stress micromodel of urinary tract infection by the Escherichia coli producing Dr adhesin.
In this study, we established a dynamic micromodel of urinary tract infection to analyze the impact of UT-segment-specific urinary outflow on the persistence of E.coli colonization.We found that the adherence of Dr+ E.coli to bladder T24 transitional cells and type IV collagen is maximal at lowest shear stress and is reduced by any increase in flow
Effects on meat quality of Yerba mate (Ilex paraguariensis) in the diet of chickens
The objective is to evaluate the effects of the inclusion of yerba mate in the diet on the yield and quality of chicken meat stored frozen for 120 days after slaughter.The birds were distributed in a completely randomized design, with four treatments, and eight replications with 25 birds each.The treatments consisted of providing a basal diet with