Universidade Federal Rural do Rio de Janeiro

Shift vector sign reversal in the Alcubierre warp drive spacetime geometry and nonlinear Burgers-type dynamics

Abstract This work investigates a sign reversal of the shift vector in the Alcubierre warp drive geometry and its effect on the nonlinear reduced structure of the Einstein equations. Previous analyses showed that Burgers-type equations can arise in warp drive spacetimes, leading...

Silent spreaders: multidrug-resistant and hypermucoviscous Klebsiella from animals threaten one health

This study investigated the identification, antimicrobial resistance patterns, and phenotypic and genotypic traits of 30 Klebsiella isolates recovered from diverse animal species and infection sites. MALDI-TOF MS demonstrated higher accuracy in species-level identification than c...

Hepatic encephalopathy associated with extensive hepatic diaphragmatic herniation in an adult horse

Abstract Background Diaphragmatic hernia in horses is a rare condition, most commonly presenting with signs of colic and, less frequently, respiratory compromise. Hepatic herniation through a diaphragmatic defect with secondary hepatic failure and encephalopathy has rarely been d...