Co-occurrence of SARS-CoV-2 variants in rivers and sewage in India and Brazil.

The genomic monitoring of SARS-CoV-2 variants of concern (VOCs) in riverine and sewage water has been widely used as an epidemiological tool worldwide. But its utility for epidemiological assessments still needs to be evaluated in some areas. Our study encompassed thirteen Brazilian rivers spanning a vast urban expanse across the states of Rio de Janeiro, São Paulo, and Paraná.

Morphogenesis and functional aspects of the muscular layer of the middle deep cervical fascia in humans.

Background: In recent years, the fasciae of the human body have received significant attention because of their crucial role in the transmission of muscle force. However, studies on the development of the fasciae, particularly the cervical fascia, remain scarce.

Purpose: This study was performed to examine the development of the fascia of the infrahyoid strap muscles, also known as the middle layer of the deep cervical fascia (MDCF), in 17 human embryos aged 6-8 weeks and 20 human foetuses aged 9-14 weeks.

A new species of Neblinaphryne (Anura: Brachycephaloidea: Neblinaphrynidae) from Serra do Imeri, Amazonas state, Brazil.

The highlands of the Guiana Shield (Pantepui) in northern South America harbor a unique fauna and flora. However, this diversity remains poorly documented, as many Pantepui massifs remain little explored or unexplored, mainly because their access is very challenging. Considering amphibians, 11 genera are endemic or sub-endemic to Pantepui, and one of them, Neblinaphryne, is monospecific and was recently described from the Neblina massif, at the border between Brazil and Venezuela.

Executive functions, mental health, and quality of life in healthy older adults.

Unlabelled: Population aging brings about numerous challenges, particularly concerning cognitive health. In this context, socioeconomic factors such as education have received special attention due to their role in brain health.

Objective: The aim of this study was to describe the performance of executive functions, mental health variables, and quality of life among healthy older adults in relation to their level of education.

Photobiomodulation on Full-Thickness Skin Graft Survival in Rats.

Objective: To evaluate the photobiomodulation effects on the receptor area for full-thickness skin graft integration.

Methods: Thirty-Six Wistar rats were divided: red laser (660 nm), infrared laser (808 nm), and control. A skin segment with 5 × 3 cm was removed.