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Cigarette butts to estimate the illicit cigarette consumption proportion in a major Brazilian city.
Int J Drug Policy
December 2024
Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Santos, Brazil.
Background: Illicit cigarette consumption (ICC) results in cheaper cigarettes and lost tax revenue. Although several methods estimate the ICC proportion, the one based on cigarette butt (CB), the most littered item worldwide, is less common. This study aimed at estimating the ICC proportion of Guarujá, a major Brazilian city, based on littered CBs.
View Article and Find Full Text PDFExpanded Perlite-Reinforced Alginate Xerogels: A Chemical Approach to Sustainable Building and Packaging Materials.
Gels
November 2024
Faculty of Applied Arts, University of Arts in Belgrade, 11000 Belgrade, Serbia.
In sustainable construction and packaging, the development of novel bio-based materials is crucial, driving a re-evaluation of traditional components. Lightweight, biodegradable materials, including xerogels, have great potential in architectural and packaging applications. However, reinforcing these materials to improve their mechanical strength remains a challenge.
View Article and Find Full Text PDFGenomic data support reticulate evolution in whiptail lizards from the Brazilian Caatinga.
Mol Phylogenet Evol
December 2024
Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ, USA.
Species relationships and speciation have traditionally been represented by phylogenetic trees, but not all evolutionary histories fit into bifurcating divergence models. Introgressive hybridization challenges this assumption by sometimes [or maybe often] leading to mitochondrial introgression, wherein one species' mitochondrial genome is entirely replaced by another's (mitochondrial capture). Such processes result in mitonuclear discrepancies, complicating species delimitation and phylogenetic inference.
View Article and Find Full Text PDFDermatopathological findings of Bothrops atrox snakebites: A case series in the Brazilian Amazon.
PLoS Negl Trop Dis
December 2024
Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil.
Background: Bothrops venom consists primarily of metalloproteinase and phospholipase A2 toxins, which are responsible for the acute inflammatory, coagulant and hemorrhagic action following snakebite. The local effects of snakebite envenomation by Bothrops species are particularly prevalent yet poorly studied, but include pain, edema, erythema, blistering, bleeding, and ecchymosis.
Methods And Findings: In this study, we describe the dermatopathological findings observed in a series of 22 patients diagnosed with Bothrops envenomation treated in a tertiary hospital of Manaus, in the Brazilian Amazon.
Size effects of the tensile mechanical behavior of basalt containing hidden joints investigated by DFN-FDEM modeling.
Heliyon
December 2024
School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
Basalt, which is a geological medium used for engineering construction in Southwest China, contains defect structures at various scales. In particular, the widespread presence of mesoscale hidden joints significantly affects the mechanical properties of basalt and the stability of engineering structures. However, research in this specific subject has been limited.
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