Universidade do Estado do Rio de Janeiro

Development of Biocatalysts Based on Lipase B From Candida antarctica Immobilized on Magnetic Poly(Styrene‐Co‐Divinylbenzene) for Application in Esterification Reactions

ABSTRACT Immobilizing enzymes on magnetic supports offers the advantage of easy separation of these biocatalysts from the reaction medium. This advantage is particularly beneficial in more viscous media, such as in fatty acid esterification. This study reports the preparation of...

ggmeta: Publication-Quality Plots for Meta-Analysis with ggplot2

Forest and funnel plots are the standard graphical outputs of evidence synthesis, yet the most widely used R functions draw them directly on the graphics device, which makes them hard to restyle, combine with other figures, or embed in a reproducible workflow. We present ggmeta,...

Shifting Patterns of Precipitation Extremes in the S outheast A tlantic Basin— B razil: From Observed Trends to Future Projections

ABSTRACT Understanding the variability and evolution of precipitation extremes associated with climate change is essential to support adaptation strategies, risk management, and civil protection. In this context, this study investigates the climatology, observed trends, and futur...

The Impact of PICU Diaries on Posttraumatic Stress Disorder and Psychological Distress in Parents of Critically Ill Children Admitted to PICUs: A Randomized Cluster Crossover Trial

OBJECTIVES: The study aimed to assess the effect of using diaries during hospitalization in a PICU on the occurrence of posttraumatic stress disorder (PTSD) and psychologic distress among family members of critically ill children. DESIGN: A two-arm, two-period, cluster-randomized...

Extended Reality in Endodontic Education: A Scoping Review of Educational Impact, Clinical Transferability, and Future Directions

BACKGROUND: Combined with haptic feedback systems, extended reality (XR) platforms enable immersive, multisensory learning environments that approximate the tactile, spatial, and proprioceptive demands of endodontic procedures. OBJECTIVE: To map and critically examine the current...

Field sampling guidelines for sedimentary ancient DNA (sedaDNA) research in lacustrine and coastal systems: from field collection to laboratory subsampling

Abstract Sedimentary ancient DNA (sedaDNA) has emerged as a powerful proxy for reconstructing past biodiversity and environmental change in lacustrine and coastal systems, yet standardized field guidance remains limited, particularly for researchers working in tropical and coasta...

Novel Synthetic Chalcones Display Potent Anti- Leishmania ( Viannia ) braziliensis Profile and Inhibit Proteolytic Activities

Abstract American Tegumentary Leishmaniasis, primarily caused by Leishmania (Viannia) braziliensis, remains a major public health challenge in Latin America. The variable efficacy and toxicity of pentavalent antimonials underscore the urgent need for new therapeutic candidates. A...

Evaluating zinc bioavailability in dredged sediments of Guanabara bay (BRAZIL): implications for coastal management standards

Abstract Guanabara Bay (GB) is an environment contaminated by metals, and it is the bay that receives the most dredging in Brazil and South America. Previous studies have shown the impact of dredging on planktonic and benthic species, which were not correctly measured by the Braz...

Mercury in Fish from Guanabara Bay, Southeast Brazil: Tissue-Specific Accumulation and Human Health Risks

Abstract Guanabara Bay is Brazil’s second-largest bay and has a long history of intense industrial and domestic pollution. Some local communities rely on fish as a primary protein source, justifying an assessment of mercury (Hg) contamination. This study determined total mercury...

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...

Congenital Syphilis in Brazil: Municipal Antenatal Care, Primary Health Care Capacity, and Territorial Inequalities, 2015–2024

Abstract Objectives To describe spatial patterns of gestational (GS) and congenital syphilis (CS) in Brazil and assess municipal antenatal care, sociodemographic, and primary-care correlates of CS notifications after accounting for GS burden. Methods We conducted a nationwide eco...

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...

New genera and species of lungfish (Sarcopterygii, Dipnoi) from the Upper Jurassic of western Gondwana, in the Jatobá basin, northeastern Brazil

The present study describes three new species and two new genera of lungfish from the Upper Jurassic (Tithonian) of the Aliança Formation (Jatobá Basin), in the state of Pernambuco, northeastern Brazil. The new taxa, Ceratodus ibimiriensis sp. nov., Tekoaceratodus pernambucensis...

Entropy and stability of an extremally charged Einstein–Born–Infeld thin shell

Abstract Spacetimes with a thin shell offer a framework where both the dynamical and the thermodynamical stability of the matter comprising the shell can be consistently studied. In the present work, we consider the dynamical and the thermodynamical stability of a spherical thin...

Generators and splitting fields of certain elliptic K 3 surfaces

Let k ⊂ ℂ be a number field and ℰ be an elliptic curve defined over k ( t ) that is isomorphic to the generic fiber of an elliptic surface π : 𝒮 ℰ → ℙ k 1 . For any extension 𝒦 ⊆ ℂ of k , the set ℰ ( 𝒦 ( t ) ) of 𝒦 ( t ) -rational points of ℰ is known to be a finitely generated a...

Mangrove sediments as carbon sinks: a global analysis of research patterns, trends and future directions

Abstract Mangrove sediments are widely recognized as an important component of long-term carbon storage in coastal ecosystems. However, the structure, evolution, and thematic organization of the scientific literature addressing mangrove sediment carbon have not yet been clearly c...

Arc-related and high-grade dry metamorphic conditions of the Búzios Orogeny: A case study of. ∼500 Ma orthogranulites from Ilha Grande, Rio de Janeiro – Brazil

In situ U-Pb and Lu-Hf analyses performed by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) on zircons and cathodoluminescence (CL) images were performed to isotopically characterize the granulitic metamorphism of the Ribeira Belt in Il...

Wasserstein distributional distance and linear programming convergence planning as monitoring network benchmarking tools: cross-continental surface water quality assessment across Brazilian and European river basins

Abstract Evaluating the performance of long-term water quality monitoring networks against international reference systems requires analytical tools capable of comparing entire empirical distributions — not merely summary statistics — yet distributional benchmarking methods have...

Effect of day-to-day variation in dietary intake on dietary patterns identification through factor analysis

Abstract Background/objectives Short-term dietary assessments, such as 24-h recalls, are affected by day-to-day variation, influencing the stability and identification of dietary patterns through factor analysis. We evaluated the effect of within-person random error on replicatin...

Balance Control and Its Correlation with Functional Capacity in People with Post-Tuberculosis Lung Disease

Background: Because falls can lead to loss of autonomy in individuals with post-tuberculosis lung disease (iwPTLD), assessing fall risk is crucial for reducing the likelihood of fractures and preventing the decline of physical function. This cross-sectional study aimed to evaluat...