Universidade Federal de Campina Grande

A near-sunset atmospheric sounding during the 14 October 2023 annular solar eclipse over Natal

Abstract. Solar eclipses are transient atmospheric events that cause rapid localized reduction in solar radiation, which produces complex changes associate with the vertical coupling of the layers. This study investigates the vertical response of the neutral atmosphere to the 14...

Mobilização social e ação coletiva no Semiárido Brasileiro: convivência, agroecologia e sustentabilidade

This text seeks to reflect on the trajectory of social mobilization for the construction of the notion of coexistence with the semi-arid, from the decade of 1990. The coexistence of the human being with his environment is an essential dimension of Agroecology, having as perspecti...

Black Hole Gravitational Phenomena in Higher-Order Curvature–Scalar Gravity

This work aims to explore the gravitational consequences of a recently proposed black hole solution previously introduced, which incorporates quantum gravitational corrections of General Relativity. We initiate our analyses by taking into account the horizon structure, focusing o...

Rhizobium spp. strains improve the physiological attributes of Mimosa tenuiflora (Willd.) Poiret seedlings under different water contents

Rhizobium spp. inoculation is a strategy to promote plant growth and enhance drought tolerance, particularly in semiarid environments. This study evaluated the morphological and physiological responses of Mimosa tenuiflora (Willd.) seedlings inoculated with Rhizobium spp. under d...

DNA detection of Babesia bovis in sheep, ticks and cattle during an outbreak of sheep ixodidiosis by Rhipicephalus microplus

This study describes, for the first time, the molecular and phylogenetic detection of Babesia bovis in sheep, with concurrent detection in cattle and R. microplus ticks during a severe tick infestation outbreak in northeastern Brazil. The affected herd, located in São Pedro, Rio...

Biodegradable pectin films incorporating purple sweet potato anthocyanins for real-time shrimp freshness monitoring

This study aimed to develop biodegradable films using pectin extracted from orange peel residues, purple sweet potato extract, and glycerol, with potential application for monitoring shrimp freshness. The physical, barrier, mechanical, bioactive, antioxidant, morphological, struc...