Universidade Federal de Pernambuco

An experimental multiplex PCR/RT-PCR for detection of the main viruses associated with equine neurological disease

Abstract Viral neurological infections are important causes of morbidity and mortality in horses worldwide. Herein, we describe an end-point multiplex PCR/RT-PCR for simultaneous and differential detection of major equine encephalitis-related agents: rabies virus (RABV), equine h...

Chemical profile and bacterial potential of Psidium cattleyanum leaf extract against multidrug-resistant Staphylococcus aureus

Abstract The increasing prevalence of multidrug-resistant (MDR) Staphylococcus aureus represents a major challenge for global public health and highlights the urgent need for new antimicrobial strategies. In this context, plant-derived compounds have emerged as promising sources...

Sexual dimorphism of the human calcaneus: a cross-sectional morphometric study

Sex estimation from skeletal remains is a fundamental step in forensic anthropology. The calcaneus, the largest tarsal bone, is robust and may serve as an alternative indicator when the skull and pelvis are unavailable. This study evaluated sexual dimorphism in the calcaneus of a...

The neglected Reinhardt’s glyptodontine from Lagoa Santa, Brazil: a reassessment of taxonomic status and description of a new species of Glyptotherium

Abstract This study reexamines a glyptodontine skull, NHMD 2045557, from Lagoa Santa, Brazil. Initially misidentified as the type of Hoplophorus euphractus by J. Reinhardt, it was later referred to Glyptodon clavipes. This identification remained unchallenged for decades. Recent...

Collision dynamics of false-vacuum oscillons

A bstract We study the collision dynamics of localized oscillons in two classes of (1 + 1)-dimensional scalar field theories with metastable false vacua, a normal class with a positive quartic self-interaction term and an inverted class with a negative quartic term. We construct...

Longitudinal gradients modulate the distribution, composition, and ecological risk of microplastics in a neotropical public water supply reservoir

Abstract Microplastics (MPs) contamination was assessed in the water and surface sediment in the upstream, dam, and downstream zones of the Tapacurá Reservoir, a tropical public water supply system in northeastern Brazil, over the course of four sampling campaigns. MPs were detec...

Allolecanicillium elzae gen. et sp. nov. (Cordycipitaceae): revised taxonomy with new combinations, its entomopathogenicity and mass production

In a previous study, an isolate identified as Akanthomyces sensu lato , obtained from the citrus blackfly Aleurocanthus woglumi in Brazil, was shown to be pathogenic towards its host. Phylogenetic evidence indicated that this isolate belongs to a new taxon. This study aimed to de...

Repeated cross-sectional study of knowledge and use of wild food plants in the Caatinga of Northeastern Brazil

Wild Food Plants (WFPs) are important for food and cultural security. Despite a global trend of erosion in WFP knowledge, little is known about how people perceive their relationship with these species. This study analyzes how WFP knowledge has changed over time, and how ecologic...

Methodological Approaches for Ultrasound Assessment of Peripheral and Abdominal Muscle Thickness in Intensive Care: A Scoping Review and Proposed Reporting Framework

ABSTRACT Objective To map and synthesize methodological approaches used for ultrasound (US) assessment of peripheral (upper‐ and lower‐limb) and abdominal muscle thickness in critically ill patients, and to propose a preliminary Standard Operating Procedure (SOP) as a structured...

MultifunctionalHybrid Gels Containing Silver Nanoparticles,Gold Nanorods, and Protoporphyrin IX for Synergistic Photothermal–PhotodynamicTherapy

Abstract Photodynamic and photothermal therapies, enhanced by nanotechnology, show great potential in skin cancer treatment. This study reports the synthesis and characterization of hybrid sodium alginate gels conjugated with protoporphyrin-IX, associated with gold and silver nan...

Assessing Water and Sediment Contamination in the Sub-Middle São Francisco River (Brazil): Combining Physicochemical Analyses, Trace Metals, and Allium cepa L. Ecotoxicity

The Sub-middle São Francisco River (Northeast Brazil), a key water resource for regional socioeconomic development, is increasingly threatened by urban, industrial, and intensive irrigated agricultural activities. This study aimed to assess physicochemical parameters, nutrient an...

Optimizing mini nutritional assessment as a prognostic tool in oncology: evidence from 50 hospitals

Objectives Diagnosing malnutrition in older individuals with excess weight is challenging, as commonly used tools rely on anthropometric measures such as body mass index (BMI) and calf circumference (CC), which can be affected by excess weight. To partially address this concern,...

Honey diet reduces mating behavior in a predatory ladybird

Abstract The quantity and quality of diet consumed by ladybugs can influence their life cycle and behavior, in both females and males. Diet can influence female’s pre-oviposition period, mate choice and ovary development, and male’s spermatophore composition and foraging for copu...

Disinfection performance of mixed oxidant, NaClO, and Ca(ClO)2 in anaerobic effluents: effects on microbial quality, physicochemical properties, and trihalomethane formation

Abstract The disinfectant action of the mixed oxidants (MIOXs) was compared with that of sodium and calcium hypochlorite (NaClO and Ca(ClO) 2 ) in the post-treatment of anaerobic effluent. The following responses were evaluated: microbiological reduction (total coliforms and Esch...

Effect of Nano-Silver Fluoride Containing 2000 ppm Silver Nanoparticles on the Microhardness and Color of Flowable Resin Composites: An In Vitro Pilot Study

Although the modification of resin composites with antimicrobial agents represents a viable alternative for biofilm inhibition, these changes may compromise the optical and mechanical properties of dental restorations. This in vitro pilot study evaluated the effect of incorporati...

A single species, different repeatomes? Genomic plasticity in Passiflora foetida L. complex and comparative insights across the subgenus Passiflora

The genus Passiflora L. comprises approximately 650 species, and exhibits high diversity in the Neotropics, especially the subgenus Passiflora. Several species of this subgenus have an abundant repetitive fraction, consistent with their increased genome sizes. However, the repeti...

Seed germination of Schinus terebinthifolius as a function of fruit coloration

The present study aimed to evaluate the germination and germination speed index of Schinus terebinthifolius seeds obtained from fruits with different colors, considering the influence of different progenies. The study was conducted at the Federal Rural University of Pernambuco, i...

A challenging case of Down syndrome regression disorder.

Abstract: Down syndrome regression disorder (DSRD) is a rare cause of neuropsychiatric regression observed in previously-healthy individuals with Down syndrome (DS). There have been reports of brain iron accumulation in the basal ganglia of patients with DS and DSRD, although the...

Neutronic and kinetic performance of thorium–U-233 and thorium–Plutonium fuel cycles in the SMART integral PWR

Thorium-based fuel cycles have attracted increasing interest as a potential alternative to conventional uranium fuels, particularly in small modular reactors (SMRs), due to their favorable neutronic characteristics and resource sustainability. In this work, a comparative neutroni...