Universidade Federal do Tocantins

Engaging Students in Chemistry through Chemical Ecology: A Contextual and Playful Learning Approach

Abstract The persistent decline in students’ interest in science, particularly in chemistry, calls for innovative educational strategies that promote engagement and contextual understanding. This study explores chemical ecology as a meaningful and interdisciplinary theme capable...

PS1-27. Effects of Dried Distillers Grains and Whole Cottonseed Supplementation on Growth, Rumen Fermentation, and Immune–inflammatory Responses of Brangus Steers.

Abstract This experiment evaluated the effects of dried distillers grains (DDG) and whole cottonseed (WCS) supplementation on growth, rumen fermentation, and immune–inflammatory responses of Brangus steers during preconditioning. Seventy-two steers (267 ± 31.3 kg BW) were assigne...

Hydropower Repowering in the Amazon: An Integrated Framework for Sustainability Assessment and Feasibility Analysis

The Brazilian Amazon constitutes a critical energy frontier where hydropower expansion frequently conflicts with environmental preservation. This study addresses this challenge by proposing an integrated framework that couples techno-economic feasibility assessments with systemat...

Combined Reuse of Paint Industry and Cattle Slaughterhouse Effluents for the Fertigation of Mombaça Grass

Abstract This study aimed to evaluate the effects of the combined application of effluents from the paint industry and cattle slaughterhouses on the fertigation of Mombaça grass ( Panicum maximum cv. Mombaça). The experiment was conducted in pots with 12 plants using a completely...

Racial discrimination and healthcare disparities in sickle cell disease: An integrative review

Sickle cell disease is an inherited genetic disorder that predominantly affects the Black population and can lead to serious complications like stroke and acute chest syndrome, significantly compromising the quality of life of those affected. An integrative literature review was...

Seed-Borne Fungi Associated with Pearl Millet (Pennisetum glaucum): A Study of Seed Health, Transmission, Pathogenicity, Virulence, and Host Susceptibility

Pearl millet (Pennisetum glaucum L.) is widely cultivated in Brazil as a succession crop and is also used for forage and as a cover crop in conservation agriculture. However, its productivity is compromised by seed-borne phytopathogenic fungi. This study evaluated the incidence,...

Stable biomass accumulation driven by conservative traits in Brazil’s tropical montane forests

While tropical forests are key CO2 sinks, local drivers of aboveground biomass (AGB) dynamics in diverse systems like the Brazilian Atlantic Forest remain uncertain, constraining ecological references for restoration and long-term carbon sequestration. This study evaluates how bi...

Reference gene selection for gene expression analysis in Coffea arabica L. under ABA and gibberellin treatments

Abstract Background Quantitative reverse transcription polymerase chain reaction (RT-qPCR) requires stable reference genes (RGs) to ensure accurate target gene normalization. Plant growth regulators like abscisic acid (ABA) and gibberellins (GA 3 ) play critical roles in plant re...