Universidade Estadual de Londrina

Functional trait space overlaps reveal ecological resilience of bird communities in Atlantic Forest fragments

While fragmentation is known to affect species diversity, the degree to which functional structure is retained relative to primary forests and the factors driving this retention remain poorly understood. Here, we applied the concept of ecological resilience to forest fragmentatio...

Ultrasound Examination of the Penile Urethra in Healthy Non‐Castrated Texel Lambs Confined for Fattening

This study aimed to determine, using ultrasonography, the width of the penile urethral lumen in Texel lambs and to compare two types of linear probes. Thirty healthy, uncastrated lambs kept in confinement for fattening were subjected to ultrasound examinations at 60, 120, and 150...

Analysis of the Chemical Profile of the Essential Oil from Leaves and Cones of Four Varieties of Humulus lupulus Cultivated in a Subtropical Climate Under Edaphoclimatic Conditions

Cultivating Humulus lupulus L. under subtropical conditions is challenging because hops are adapted to temperate climates, where environmental factors influence plant development and secondary metabolism. This study evaluated the essential oil yield and chemical composition of co...

Heterogeneous electro-Fenton degradation of methyl orange: Multivariate optimization and voltammetric monitoring

Abstract The degradation of methyl orange (MO) was investigated using the heterogeneous electro-Fenton (het-EF) process, with synthetic goethite (S-Goe) as an iron-based catalyst in an undivided cell equipped with a Dimensionally Stable Anode (DSA) and an air-diffusion cathode. A...

Decoupling Network Architecture and Sorption Mechanisms in Cellulose–Alginate and Carboxymethylcellulose–Alginate Hydrogels

Abstract Understanding how network architecture governs the properties of polysaccharide-based hydrogels is essential for designing sustainable functional materials. This study investigates structure–property relationships in renewable cellulose/alginate (CEL/AL) and carboxymethy...

Enhanced photoelectrochemical activity of detached TiO₂ nanotube films via time-controlled electrodeposition Au nanoarchitectures

Abstract TiO 2 nanotubes detached films decorated with gold nanoparticles (TiO 2 NTs-AuNPs) represent an effective strategy to enhance light harvesting in photoanodes. The films were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission gun scanning electro...

Integrated processes applied to cocoa bean hulls to obtain phenolic compounds and cellulose

Abstract The cocoa bean hull is one of the main residues generated by the cocoa industry, accounting for approximately 10–20% of the total bean weight and resulting in large amounts of discarded biomass, which is rich in valuable components, including phenolic compounds (PC) and...

Discrete time survival analysis machine learning models for IVF prognosis across multiple cycles

Abstract STUDY QUESTION Can discrete time survival analysis machine learning (ML) methods provide reliable and accurate predictions of cumulative live birth rate (CLBR) for patients both at diagnosis (pre-treatment) and after the first cycle of treatment (post-treatment)? SUMMARY...

Effect of Aqueous Ozone Concentrations on the Postharvest Quality of ‘Albion’ Strawberries

Strawberry is a highly perishable fruit whose rapid quality deterioration during storage limits its shelf life and marketability. In this context, ozone has emerged as a promising alternative for postharvest preservation due to its potential to reduce deterioration processes and...

Efficacy of natural products in the control of Raoiella indica (Acari: Tenuipalpidae) in laboratory bioassays

Different concentrations of Sulfocal, Bioactive, and Fitoneem solutions were evaluated for their toxicity against female Raoiella indica (Hirst) (Acari: Tenuipalpidae). Coconut leaf discs were sprayed with the treatments and subsequently infested with adult females. Mortality was...

The agroenvironmental-clinical link of Proteus mirabilis: Genomic epidemiology, clonal relationships, and shared resistance and virulence profiles

Abstract Proteus mirabilis is an opportunistic pathogen frequently associated with urinary tract infections (UTIs), with its pathogenicity driven by coordinated virulence traits such as adhesion, biofilm formation, and toxin production. The systemic emergence of antimicrobial res...

Temporal Trends and Epidemiological Patterns of Clinically Relevant Microorganisms in a Burn Unit: An 11-Year Retrospective Study from a Tertiary Hospital in Southern Brazil

Background/Objectives: Burn patients are particularly vulnerable to microbial colonization and healthcare-associated microorganisms due to extensive skin barrier disruption, prolonged hospitalization, immune imbalance, and frequent invasive procedures. This study aimed to charact...

Proposed Economic Threshold for Diceraeus melacanthus (Dallas) in Maize Under an Early Intercrop Cultivation System

Abstract The Antecipe® system, in which maize is sown between soybean rows while soybean plants are still in the reproductive stage, reduces the production cycle of the soybean-maize crop system and, consequently, mitigate climatic risk for second-crop maize. However, the coexist...

High prevalence of picobirnavirus genogroup I in calves without association with diarrhea in a dairy cattle herd, southeast Brazil

Abstract Dairy farming is one of the most widespread agricultural activities in Brazil. Neonatal diarrhea remains a major challenge, contributing significantly to economic and production losses in Brazilian dairy cattle herds. Picobirnavirus (PBV) has been suggested as a potentia...

Phylogroups, virulence factors, and antimicrobial susceptibility of uropathogenic Escherichia coli isolates from dogs at a veterinary hospital in southern Brazil

Escherichia coli , besides being an important commensal of the intestinal microbiota, can cause infections in different sites in humans and domestic animals. There has been an increasing frequency of multidrug-resistant strains, and in light of this, the present study aimed to ch...

Effects of physically active lessons and physically active breaks on cognitive development and academic performance of schoolchildren: protocol for a cluster randomized clinical trial

Movement is crucial for health, but it has declined due to increased sedentary behavior, which is associated with physical and mental health problems in children and adolescents. School-based interventions have shown positive effects on behavior, academic performance, and cogniti...

Effects of Clear Aligner Therapy on Quality of Life and Anxiety Levels: An Exploratory Study in Patients With Disabilities

INTRODUCTION: Considering the orthodontic needs of individuals with disabilities and the potential impact of such treatments on both quality of life (QoL) and anxiety, this study aims to assess the effects of using clear aligner therapy (Invisalign) on QoL and anxiety levels in t...

Cognitive Effort as a Compensatory Mechanism for Motor Control in Impulsivity

Impulsivity, although commonly associated with maladaptive behavior, can influence how individuals manage cognitive and motor demands. This study analyzed the effect of impulsivity on motor control and cognitive effort during manual aiming tasks that varied in cognitive load. Fro...

Applicability of anthropometric indices for assessing speed and agility in children and adolescents: proposed reference values by age and sex

OBJECTIVE: a) To verify the applicability of anthropometric indices (body mass index (BMI), tri- weight index (TWI), body surface area (BSA)) for evaluating velocity and agility tests in children and adolescents, and to propose reference values. METHODS: A descriptive cross-secti...

Does donating human milk result in greater compromise to the bone mass of breastfeeding mothers?

OBJECTIVE: Although the effects of lactation on bone mass are frequently discussed, it is unknown whether these effects are intensified in breastfeeding mothers (BFM) who become donors (BFM-donors). Thus, the objective was to evaluate alterations in bone densitometry and bone met...