Universidade Estadual da Paraíba

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...

Metodologias Participativas em Agroecologia: redes, processos e estratégias rumo a uma Pedagogia do Alimento

This article, based on a theoretical and methodological approach, starts from the criticism made by the New Philosophy of Science and its influence on the Liberating Education in Brazil and Latin America, highlighting the growing relationship of popular participation and Agroecol...

Longitudinal gradients modulate the distribution, composition, and ecological risk of microplastics in a neotropical public water supply reservoir

Abstract Microplastics (MPs) contamination was assessed in the water and surface sediment in the upstream, dam, and downstream zones of the Tapacurá Reservoir, a tropical public water supply system in northeastern Brazil, over the course of four sampling campaigns. MPs were detec...

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...