Universidade Federal de Mato Grosso

Molecular and Phylogenetic Identification of Fungal Taxa Associated with Soybean Anomaly in Brazil

Soybean anomaly, characterized by immature pod and grain rot, has been reported in Brazilian soybean production fields, but the fungal taxa associated with symptomatic tissues remain poorly characterized. This study aimed to identify fungi associated with soybean plants showing a...

Sucessão ecológica, entropia e o Modelo Autonomia-Heteronomia para análise dos sistemas agrícolas

It is proposed a agronomic analytical model, Autonomy-Heteronomy, for description and analysis of agricultural systems. Autonomous systems are characterized by preferential use of local resources and strategies to meet local or regional needs. They are systems of low entropy and...

Fire absence favours tree growth above the flame zone threatening South American Cerrado vegetation

Tropical savannas, including the Brazilian Cerrado, face significant woody encroachment linked to fire suppression. We investigated floristic composition, horizontal and vertical structure, and Enhanced Vegetation Index (EVI) time series in a 1-hectare plot within Chapada dos Gui...

Effect of carcass electrical stimulation on sheep and goat meat quality: a meta-analysis study

Context The utilization of electrical stimulation (ES) in small ruminant carcasses is less common than in beef processing facilities. Nevertheless, ES shows promise in mitigating cold shortening and improving meat quality traits in small ruminants. Aim This meta-analysis assessed...

Assessing fish diversity in the Amazon: The impact of primers and reference libraries in eDNA surveys

Abstract Selecting primers for DNA amplification poses a challenge in environmental DNA (eDNA) studies, particularly in biodiverse tropical ecosystems. Researchers must balance taxonomic coverage, primer specificity, and study feasibility when choosing between a single primer pai...

Gödel-symmetric backgrounds and explicit spacetime symmetry breaking

Abstract Explicit diffeomorphism breaking in gravitational theories with nondynamical background fields is constrained by the compatibility between the modified Einstein equations and the contracted Bianchi identities. We implement an isometry-based approach in which the backgrou...

Thermoforesis from Generalized Caldeira-Leggett Models

Abstract The standard Caldeira-Leggett model addresses the problem of Brownian motion in a thermal equilibrium environment. Here, we look for generalizations of the Caldeira-Leggett model to account for thermal gradients in the environment. We devise two types of models, and disc...

Exact Boundary Controllability for Wave Equations With Space Variable Potential

ABSTRACT In this article, we study an exact boundary controllability problem for a wave equation with a potential that varies in the space on non‐smooth domains of , . The potential considered is a positive space variable function which has the short‐range property, that is when...

Contrasting effects of fire on reproductive structures: prescribed burns advance and extend flowering but reduce fruiting of Macairea radula (Bonpl.) DC (Melastomataceae) in the Brazilian Cerrado

Abstract Fire triggers flowering, stimulating and advancing flower production and, consequently, fruiting in some plants of the Cerrado , the Brazilian savanna. Integrated Fire Management (IFM) has been applied in several protected areas in the Cerrado to simulate natural fire re...

Pilot-scale optimization of atmospheric acid leaching for enhanced nickel and cobalt recovery from laterite ore

Nickel and cobalt are critical metals predominantly extracted from laterites. However, deposits with high iron content (>15%) and SiO2/CaO + MgO ratios (∼1.8) limit the applicability of conventional pyrometallurgical routes. In this scenario, hydrometallurgical processes, particu...

Genetics of growth resilience- and uniformity-related indicators derived from sparse body weight data in Angus–Brangus cattle under (sub)tropical conditions

Abstract Background Resilience is an important breeding objective in livestock, reflecting the capacity of animals to maintain their performance or recover quickly from short-term environmental perturbations. The derivation of resilience indicators requires longitudinal measureme...