Universidade Federal do Estado do Rio de Janeiro

Habitat Risk Assessment for the Tidal Marshes and Flats of Huildad Bay, Isla Grande de Chiloé, Chile

The tidal marsh and tidal flats in the intertidal zones of Chiloé, Chile are highly productive ecosystems that provide essential ecosystem services and preserve local biodiversity. However, they face increasing pressure from human activities. This study evaluated the cumulative r...

Circular economy assessment of biomethane value chain in Brazil

Abstract From the numerous opportunities to add value to biomass in Brazil, biomethane production in sugarcane mills presents significant potential. This study introduces a diagnostic framework grounded in circular economy (CE) principles to assess new biomethane projects, aligni...

Perinatal Outcomes of Pleuro-Amniotic Shunting in Isolated Pleural Effusions: Systematic Review and Meta-analysis

Pleuro-amniotic shunting has been proposed for fetal pleural effusion, although its safety and efficacy remain uncertain. Therefore, we aimed to evaluate the perinatal outcomes of the fetal therapy for isolated pleural effusion through a systematic review and single-arm meta-anal...

Integrating images, sounds, citizen science and AI to assess the biodiversity of the Atlantic Forest of Brazil

The Atlantic Forest is an endangered biome in Brazil with only 15% of its area remaining. Although it is reported that it has a high biodiversity and many endemic species, the biological composition of its territory remains largely unknown. Citizen science can speed up the descri...

Effects of neurokinin receptor antagonists on sleep disturbance in menopausal women: a systematic review and meta-analysis of randomized controlled trials

Importance: Sleep disturbance is a common and burdensome symptom among perimenopausal and postmenopausal women with moderate to severe vasomotor symptoms (VMS). Although neurokinin (NK) receptor antagonists have demonstrated efficacy for reducing VMS, their effects on sleep distu...

Association between muscle quality index and time to stand up from the prone position in community-dwelling older adults

Both muscle strength and muscle quality are essential factors for preserving autonomy and functionality in older adults (OA). However, the relationship between muscle quality index (MQI) and the time to stand up from the prone position (SPP) in this population is unknown. The pri...

A Single‐Aliquot Strategy for Simultaneous Carbon Isotope Confirmation of 6‐Oxo‐Androstenedione and Testosterone Misuse in Doping Control

ABSTRACT A method compliant with World Anti‐Doping Agency (WADA) requirements was validated for carbon isotope ratio (CIR) analysis enabling the simultaneous confirmation of 6‐oxo‐androstenedione (6‐oxo) metabolites and testosterone steroid profile markers from a single urine sam...

Large-deformation theoretical analysis of open-end thick-walled tubes under internal pressure

Subsea pipelines and deepwater risers are critical components in offshore oil and gas production, often subjected to extreme internal pressure during operation and hydrotesting. This study proposes a rigorous theoretical model for stress-strain analysis on open-end thick-walled c...

Habitat Complexity and Seasonal Variation Factors Shape the Polychaete Assemblies Associated with the Holdfast of Lessonia berteroana

Lessonia berteroana is a structuring macroalga that houses a high diversity of benthic invertebrates in southeastern Pacific rocky ecosystems. The present study assessed the diversity and structure of the community of polychaetes associated with the holdfast of L. berteroana at t...

Academic achievement map: a clear cognitive route and a promising motor path

OBJECTIVE: This study investigates how executive functions, motor coordination, and oral discourse are related to academic performance in children from public schools in Rio de Janeiro. METHOD: This longitudinal study assessed 75 children at the beginning (T1) and at the end (T2)...

Development of Recombinant Multi-Epitope Hepatitis C Virus (HCV) Protein for Hepatitis C Diagnosis

Hepatitis C virus (HCV) infection poses a major challenge to global public health, highlighting the need for accessible and reliable diagnostic tools to support large-scale screening and early detection. In this study, a recombinant multi-epitope HCV protein was designed, express...

The degree of knowledge gain metric: Evaluating how searchers acquire new information while searching online

This study presents the degree of knowledge gain, a behavioral metric that estimates how much searchers learn during Web searches. Grounded in information theory and Shannon entropy, the metric quantifies reductions in uncertainty by analyzing query reformulations, clicks, and do...

The Spiritual Dimension of Palliative Care Patients and Their Caregivers in a Compassionate Community in Two Brazilian Favelas1: A Mixed-Methods Study

Abstract Spirituality is a key dimension of palliative care, contributing to well-being, supporting adjustment to illness, and serving as an important coping resource for patients and caregivers. In socially vulnerable settings, compassionate community initiatives may facilitate...

The annual cycle activities of birds from Serra da Mantiqueira, Brazil

Abstract The timing of feather molting and breeding, two key activities in the avian life cycle, varies widely among species. These variations are shaped by each species’ unique ecological traits and their interactions with dissimilar environmental factors, such as seasonal chang...

Changes in Aerobic and Muscle-Strengthening Physical Activity and Self-Reported Morbidity Among University Students During the COVID-19 Pandemic: A Cross-Sectional Study

The COVID-19 pandemic substantially affected lifestyle behaviors among university students, potentially increasing their vulnerability to chronic noncommunicable diseases (NCDs). This cross-sectional study investigated associations between self-reported changes in the frequency o...

Phytotelm and anthropogenic mosquitoes: community structure in natural and artificial habitats in an Atlantic Forest agroforestry system, Rio de Janeiro, Brazil

Abstract Agroforestry systems (AFSs) combine agricultural crops with native or exotic trees to promote sustainable production while creating heterogeneous landscapes with diverse fauna microhabitats. In the Atlantic Forest biome, how these systems shape immature mosquito (Culicid...

The Organization of Home Palliative Cancer Care by Primary Health Care: A Systematic Review

Background: Home-based palliative cancer care coordinated by primary care has been proposed as a strategy to improve access, continuity, and alignment with patient preferences, but its organizational characteristics and effects remain insufficiently synthesized. Aim: The aim was...

Power Profile of Olympic Cross-Country Mountain Biking: Durability Matters

Abstract Inoue, A, Mateo-March, M, Protzen, G, do Carmo, EC, Lattari, E, Costa, VP, and Bezerra da Silva, E. Power profile of Olympic cross-country mountain biking: Durability matters. J Strength Cond Res XX(X): 000–000, 2026—Power output decline may represent an important indica...

Foraminifera and thecamoebians as indicators of hydrodynamics in a tropical delta – Paraíba do Sul River Delta, Brazil

Abstract Deltas are dynamic transitional environments where complex morphology and hydrodynamics have a great influence on benthic communities. This study investigates the distribution of foraminifera and thecamoebians in the Paraíba do Sul River Delta (Brazil), with emphasis on...

Real-world outcomes of CD34⁺ mobilization and early autologous hematopoietic stem cell transplantation recovery after daratumumab-based induction

INTRODUCTION: Daratumumab, an Anti-CD38 monoclonal antibody, is now widely used in frontline induction for transplant-eligible multiple myeloma. Although highly effective, concerns remain regarding its potential impact on CD34⁺ stem cell mobilization and early outcomes after auto...