Universidade Federal de Minas Gerais

Humidity and temperature interact in breaking physical dormancy in Fabaceae seeds from the Brazilian semiarid region

Abstract Premise In semiarid ecosystems such as the Brazilian Caatinga, physical seed dormancy (PY) is critical for plant persistence when water is unpredictable, but how soil moisture and temperature regulate PY release and seed longevity in species of native Fabaceae that have...

Noninvasive malignant mammary adenomyoepithelioma in a male cat

Abstract This report describes the histopathological and immunohistochemical findings of a noninvasive malignant mammary adenomyoepithelioma in a seven-year-old neutered male mixed-breed cat. The animal was euthanized due to an extensive mandibular fracture caused by squamous cel...

Arbuscular mycorrhizal fungi spore density and species diversity varied within plants species and between dry Afromontane forests in northwestern Ethiopia

Ethiopian Afromontane forests are rich in biodiversity and they a part of the eastern biodiversity hotspot. However, they are the most degraded ecosystems, continuously shrinking in size. Arbuscular mycorrhizal fungi (AMF) form a symbiotic association with land plants; thereby as...

Technology-Oriented Wind Farm Configuration Selection Using an RFR-Based Turbine Power-Output Surrogate Model: A National-Scale Assessment for Brazil

This work presents a framework for national-scale onshore wind farm screening in Brazil based on turbine technology. The approach integrates ERA5 hourly wind fields, turbine technical specifications, a Random Forest Regression (RFR)-based turbine power-output surrogate model, and...

Trophectoderm biopsy and vitrification: survival, oxidative stress and cell count in bovine embryos

CONTEXT: Trophectoderm (TE) biopsy combined with embryo vitrification is increasingly being used; however, concerns remain regarding its effects on embryo survival and physiological stability after warming. AIMS: We aimed to evaluate whether TE biopsy performed prior to vitrifica...

Remote sensing for monitoring and managing Eichhornia crassipes: a review of methods, applications, and decision-support frameworks

Abstract Eichhornia crassipes (water hyacinth) is among the world’s most aggressive aquatic invasive plants, with severe ecological and socioeconomic impacts on freshwater ecosystems. Over the last two decades, remote sensing has emerged as a critical tool for monitoring its spre...

Microstructural Evolution and Morphological Aspects of Titanium Carbides in Weld-Deposited Coatings using Chip-Based Fluxes

Abstract This work examines how joint design–controlled dilution governs microstructural evolution and titanium carbide morphology in GTAW cladded hardfacing layers produced using recycled Ti6Al4V chips and graphite. Hardfacing coatings were deposited into V-groove geometries of...

Skin Cancer in Rural Workers in Brazil: Influence of Ultraviolet Radiation, Skin Color and Regional Factors

BACKGROUND: This study analyzed the incidence of skin cancer among rural workers in Brazil, considering the influence of ultraviolet (UV) radiation, skin color, and regional factors. METHODS: Data from the National Cancer Institute (2008-2022) on skin cancer were used, using hist...

Developing educational tools for One Health: Transformative strategies for zoonosis prevention

Objectives: This study aimed to describe the development, implementation, and material costs of four low-cost educational strategies for zoonosis prevention and One Health education in schools. Design: Methodological, qualitative, and descriptive study. Setting: Public elementary...

Genomic analysis of Escherichia coli, Enterobacter hormaechei, and Cupriavidus gilardii isolated from Cacatua alba

Abstract The objective of this study was to perform genomic, phylogenomic, and phenotypic characterization of bacterial isolates from a captive Cacatua alba to investigate their antimicrobial resistance profiles, virulence-associated genes, and genomic relationships with publicly...

Nutritional Modulation in Aging and Metabolic Syndrome: Combating Obesity, Vascular Disease, and Frailty

Metabolic syndrome (MetS) represents one of the major public health challenges of our time [...]

Activity-based accident analysis: from blame attribution to organizational learning

This paper proposes Activity-Based Accident Analysis (ABAA) as a methodological framework that integrates organisational accident analysis with the reconstruction of situated work activity. While systemic approaches have advanced the understanding of organisational accidents, the...

Administration of nebivolol after subcutaneous ovarian autotransplantation improves neoangiogenesis, follicular survival, and growth in mice

Context As ovarian transplantation is performed without blood vessel anastomosis, its main limitation is ischemia. Nitric oxide (NO) has pro-angiogenic and antiapoptotic effects, and nebivolol, a selective β1-blocker with NO-inducing activity, may be a potential drug to improve g...

Factors associated with discordance between the patient-reported Rheumatoid Arthritis Disease Activity Index (RADAI) and the Simplified Disease Activity Index (SDAI) concerning the achievement of treat-to-target goals – data from the REAL study

Abstract Background Treat-to-target (T2T) strategies in rheumatoid arthritis (RA) rely on regular assessment of disease activity using validated composite indices, with remission or low disease activity as therapeutic goals. The Simplified Disease Activity Index (SDAI) is widely...

New insights on the Feeding Site and Salivation by Lutzomyia longipalpis (Diptera: Psychodidae) During Blood Ingestion on Host Skin

Abstract Phlebotomine sand flies are major vectors of Leishmania parasites, yet the mechanisms underlying their blood-feeding behavior remain poorly understood. In Lutzomyia longipalpis , the primary vector of Leishmania infantum in the Americas, feeding occurs via telmophagy, a...

Glucose Transporter Deficiency Syndrome Type 1 (Glut1‐ DS ): New Insights From a Brazilian Cohort of Patients

ABSTRACT Glucose transporter deficiency syndrome type 1 (Glut1‐DS) is a rare neurometabolic disorder caused by pathogenic variants in SLC2A1 , characterized by epilepsy, neurodevelopmental delay, movement disorders, dysarthria, intellectual disability, and postnatal microcephaly....

VLA-4 integrin modulates cellular responses to sorafenib in metastasis-related processes of B16F10 melanoma cells

Metastatic progression in melanoma is driven by the coordinated activity of adhesion molecules and growth factor receptors, yet the functional interplay between integrins and VEGFR-related signaling remains poorly defined. This study investigated the role of α4β1 integrin, also k...

eDNA-based assessment of microbial dynamics in response to persistent contaminants and degraded water quality in a hypereutrophic urban reservoir

Abstract Urban freshwater ecosystems are increasingly exposed to mixtures of pollutants, including per- and polyfluoroalkyl substances (PFAS). However, their ecological effects remain poorly understood, especially in tropical regions with limited sanitation infrastructure. This s...

First report of a species of Senga (Cestoda: Bothriocephalidae) in commercial Betta splendens (Actinopterygii: Osphronemidae) in Brazil

Abstract Species of the genus Senga comprise a group of bothriocephalidean cestodes that predominantly parasitize freshwater teleost fishes, causing severe histopathological alterations due to scolex attachment to the digestive tract or obstruction of the intestinal lumen. The Si...

Microbial oil production by Yarrowia lipolytica strains using glycerol as carbon source

Abstract Yeasts can produce microbial oil from hydrophobic substrates such as glycerol, a byproduct of the biodiesel industry that is often undervalued in the market. Yarrowia lipolytica is capable of degrading glycerol and is considered a model organism for studying lipid accumu...