Universidade Federal de São Carlos

Can Temperature and UV Exposure Alter the Antimicrobial Properties of the Essential Oils? An Investigation of Origanum vulgare , Cymbopogon citratus , Syzygium aromaticum , and Lippia sidoides

Abstract Essential oils (EOs) are natural compounds widely applied in agriculture, post-harvest preservation, food processing, and human health due to their strong antimicrobial potential. However, the effects of postextraction physical treatments on their chemical and biological...

Full-Waveform Inversion Cycle-Skipping Mitigation with Dynamic Time Warping, Part 2: An Intermediate Signal Approach

Abstract This paper presents Part 2 of a study that explores underemployed applications of the Dynamic Time Warping (DTW) method for cycle-skipping mitigation in Full-Waveform Inversion (FWI). To achieve a representative subsurface model, FWI seeks to minimise an objective functi...

The organization and dynamics of viral factories

ABSTRACT Viral factories (VFs) are dynamic, virus-induced microcompartments that serve as centralized hubs in the host cell for viral genome replication, transcription, and virion assembly. These structures employ unique viral mechanisms for remodeling cellular architecture to cr...

Development of a model based on FMEA, AHP and 2-tuple fuzzy linguistic representation for supply risk assessment

Purpose This paper proposes a model based on analytic hierarchy process (AHP), 2-tuple fuzzy linguistic representation and failure mode and effect analysis (FMEA) to measure risks associated with suppliers of critical items. Design/methodology/approach In the proposed model, AHP...

Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma

ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy sec...

Unveiling the effects of tautomerism, pH, and solvation on the UV/Vis spectrum of sulfapyridine: a joint theoretical and experimental study

Abstract Context Sulfapyridine (SPY) is a sulfonamide frequently detected as contaminant in aquatic environments, largely due to incomplete metabolism and its extensive use in livestock production and other anthropogenic activities. The spectroscopic properties of SPY are strongl...

Perspectives on the modification of electrodes by polymers of intrinsic microporosity (PIMs) for electroanalysis

Extreme molecular rigidity in the polymer backbone introduces new properties in polymer films or coatings in contact with solution, electrodes, and embedded catalysts. Polymers of intrinsic microporosity (PIMs) with highly rigid molecular structures have initially emerged as gas...

Chronic ethanol ingestion induces morphological alterations in the uterine horn mucosa of Calomys callosus

Abstract The present work was carried out to evaluate the possible effects of chronic alcohol intake on the histology and ultrastructure of the endometrial lining epithelium of the uterine horn of Calomys callosus . Twenty adult female rodents, Calomys callosus , three months old...

Non-thermal plasma engineering of CuO/Cu2O nanostructures on copper mesh for tunable selectivity in electrochemical CO2 reduction

Abstract The rising levels of atmospheric CO₂ have exceeded the capacity of the natural carbon cycle, driving interest in electrocatalytic CO₂ reduction as an environmental and energy solution. Copper-based tandem electrocatalysts remain the most investigated catalysts due to the...

Molecular divergence and genomic composition of B chromosomes in the fish Cyphocharax modestus (Characiformes, Curimatidae)

Abstract B chromosomes are supernumerary elements that evolve from standard A chromosomes and are primarily composed of repetitive DNAs, yet their origin, diversification, and molecular composition remain poorly understood in most vertebrates. We investigated two allopatric popul...

Intrinsic Activity of Face-Dependent Hydrogen Evolution Reaction Induced by Cu, Cu2O, and CuO Surfaces

Abstract The hydrogen evolution reaction (HER) is central to electrochemical water splitting and renewable hydrogen production. Here, we use DFT+U, continuum solvation, ab initio thermodynamics, and the computational hydrogen electrode to compare the intrinsic HER thermodynamics...

Synthesis and Photocatalytic Three-Component Ring-Opening of 3-Substituted-1-azabicyclo[1.1.0]butanes toward 3,3-Disubstituted N -Sulfonylazetidines

Abstract Aryl-substituted azetidines are found in pharmacologically active compounds; however, efficient synthetic methods to access this scaffold remain limited. Existing approaches predominantly enable the synthesis of azetidines bearing electron-rich aryl substituents. Herein,...

Oxygen-Vacancy-Controlled Band-Gap Engineering in Fe/Co Co-doped La-Modified Bismuth Titanate: Integrated Experimental and First-Principles Analysis

Abstract Layered Aurivillius ferroelectrics offer a route to multifunctional band-gap engineering, yet the role of oxygen vacancies in band-edge reconstruction in Fe/Co-modified compositions remains poorly resolved. Here, oxygen annealing of Bi3.25La0.75Ti2.60(Fe0.50,Co0.50)0.40O...

Crystallization-driven structural evolution and its role in corrosion resistance of amorphous Fe–Cr–Ni–(Mo)–B alloys

Fe-based amorphous alloys have attracted considerable interest due to their excellent corrosion resistance, although crystallization may significantly affect their performance. This work investigates the influence of crystallization on the microstructural evolution and corrosion...

Maternal DNA repair safeguards genome stability during the oocyte-to-embryo transition

Abstract De novo mutations are a major source of genetic variation and disease risk, yet the developmental timing and mechanisms underlying their origin require further investigation. While germ cells have traditionally been considered the primary source of these mutations, incre...

Integrating the Classical and Molecular Approaches Toward Passion Fruit Resistance Against CABMV

Abstract Passion fruit, a tropical species cultivated across various nations, faces challenges in expanding its cultivation areas due to several constraints, including total crop losses, caused by the fruit woodiness virus. In Brazil, this condition is attributed to the cowpea ap...

Forecasting E-waste generation in data-constrained regions: a parsimonious regression model for Latin America

Abstract The rapid increase in Waste Electrical and Electronic Equipment (WEEE) generation, driven by accelerated consumption and shortened product lifespans, has become a critical global environmental challenge. Reliable forecasting tools are essential to support waste managemen...

Ruminal Fermentation, Methanogenic Archaeal Diversity, and Metabolomic Responses to Urochloa brizantha Extracts in Sheep

Background: Phytogenic feed additives are being explored as alternatives to conventional rumen modulators, yet their effects on the ruminal ecosystem remain insufficiently characterized when assessed only through conventional fermentation parameters. This study evaluated the effe...

Surface self-doping capabilities in anodic Nb2O5 prepared by plasma electrolytic oxidation

Self-doping is an effective strategy for introducing defects in metal oxides such as Nb2O5, thereby modifying their electrochemical properties. The formation of defects, such as oxygen vacancies, has been associated with decreased surface charge-transfer resistance and increased...

Blending PCI Coal and Biochar as Sustainable Alternative for Blast Furnace Fuels

The aim of this study was to investigate the feasibility of using biochar or its blends with pulverized coal injection (PCI) coal as a potential blast furnace (BF) fuel. A comparison was conducted between the properties of biochar obtained from the pyrolysis of coconut shell and...