Universidade Federal de Alagoas

Human dimensions of protected areas: a systematic review of the social-ecological effects of legal restrictions on local communities

Legal restrictions associated with protected areas can act as anthropogenic disturbances in social-ecological systems, altering relationships among communities, territories, and resources. This study examined how the scientific literature documents these effects by investigating...

Persistence of leprosy in northeast Brazil: epidemiological characterization and spatial distribution over a decade.

Leprosy is an infectious disease caused by Mycobacterium leprae, predominantly affecting vulnerable populations. This study analysed the spatial and spatiotemporal distribution of leprosy cases in northeast Brazil and their epidemiological characteristics. An ecological study use...

Influence of Steel Fiber Distribution on the Mechanical Performance of SFRC

Abstract This study investigated the flexural behavior of steel fiber-reinforced concrete (SFRC) with a nonuniform fiber distribution using a layered casting approach. Specimens composed of a fiber-reinforced bottom layer and a conventional concrete top layer (layered SFRC, LSFRC...

Evaluation of Moringa Oleifera Lam. biomass as a sustainable lost circulation material for high-permeability formations: a thermal analysis and fluid invasion approach

Abstract This study evaluates the potential of Moringa oleifera Lam. biomass as a sustainable and thermally stable lost circulation material (LCM) for high-temperature drilling operations, utilizing a comprehensive thermal analysis and fluid invasion approach. Thermogravimetric a...

Multifractal assessment of hydroclimatic variability in Midwest Brazil using the hydroclimatic balance index (HBI): a comparison with the standardized precipitation index (SPI)

Abstract This study investigates the multifractal characteristics of hydroclimatic variability in the capital cities of Midwest Brazil using monthly precipitation (ppt) and actual evapotranspiration (aet) data from the TerraClimate dataset (1958–2024). A 12-month standardized hyd...

Vision, hearing, and intellectual disabilities in school-age children and adolescents (5–19 years) in Latin America and the Caribbean

Background Childhood sensory and intellectual disabilities represent significant yet under-recognized barriers to learning and human capital development. This study analyzes prevalence and severity of these conditions among 149.3 million children and adolescents aged 5–19 years a...

Reproducible Multicriteria Reanalysis of a Four-Criterion UASB-Oriented Source Matrix for WWTP Biogas-Recovery Prioritization

This study performs a computationally reproducible multicriteria reanalysis of a four-criterion, UASB-oriented source matrix reported in a 2015 MSc dissertation. Two author-generated numerical scenarios, each containing six WWTP alternatives, are treated as constructed cases rath...

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...

Multimethod modeling to analyze the relationship between public health efficiency and social determinants management: a longitudinal study in Brazil

Purpose This study investigates the long-term relationship between management efficiency and representative indicators of the social determinants of public health across 390 municipalities in Paraná, Brazil. Design/methodology/approach The research employed multimethod modeling w...

Evaluation of Passiflora edulis Seed Extract and Piceatannol in Attenuating Hyperglycemia and Oxidative Stress Using Human and Nonhuman Antidiabetic Enzymes, Human Neutrophil Oxidative Burst, and Embryonic Zebrafish Hyperglycemia Model

Abstract Passiflora edulis seeds are frequently discarded as agro-industrial residues despite being a source of bioactive compounds such as piceatannol (PIC). Their valorization through ethanolic extraction aligns with circular economy principles and enables the investigation of...

Clinical and Epidemiological Profile of Children Evaluated at a Public Pediatric Cardiology Service in Southern Brazil

Background/Objectives: Congenital heart disease (CHD) is a major cause of congenital morbidity and mortality, but evidence from public pediatric cardiology services in Brazil remains limited. This study aimed to characterize the clinical and epidemiological profile of children an...

Bioregionalization of the southwest Atlantic Ocean based on fish life-history traits: perspectives on fisheries impacts

Large-scale environmental gradients influence the distribution of species and their ecological strategies, shaping the functional organization of marine ecosystems. In marine fishes, life-history traits such as growth rate, longevity, and reproductive investment regulate populati...

Occupational pesticide exposure and multidimensional risk perception among family farmers: implications for One health

Pesticide use represents an important One Health challenge due to its interconnected effects on human health, environmental quality, and food production systems. This study evaluated occupational exposure to pesticides and multidimensional risk perception among family onion farme...

Plant‐Based Diet and Sleep Quality in Adults: Exploring the Role of Lifestyle and Health Mediators

This study investigated the association between plant-based dietary indices (PDI) and sleep quality and examined the mediating roles of lifestyle and health-related factors. A total of 5260 participants (18-65 years) were included. Sleep quality was assessed using the Pittsburgh...

Silent Verb Generation During fMRI Reveals Post-Radiotherapy Alterations in Cerebellar–Cerebral Language Regions in Patients Treated for Medulloblastoma

Background: Medulloblastoma is the most common malignant pediatric brain tumor. Although radiotherapy improves survival, it is often associated with neurocognitive impairments affecting language and executive functions in developing brains. We investigated treatment-related chang...

Cladistics of the Zethus spinosus de Saussure Species Group: A New Subgenus of Zethus Fabricius, 1804 (Hymenoptera, Vespidae)

Zethus Fabricius is the largest genus of vespid wasps with over 300 species worldwide that are divided into subgenera and further into species groups. Recent phylogenetic studies raised the number of subgenera from four to nine, six of which are in the Neotropics. However, three...

Thermokinetic, Thermodynamic, and Pyrolysis Analysis of Agro-Industrial Biomass for Bioenergy: Insights from Isoconversional Models and Neural Networks

Abstract The growing demand for renewable energy and sustainable waste management has driven interest in the thermochemical valorization of agro-industrial residues. This study investigated the thermokinetic, thermodynamic, and pyrolysis behavior of four lignocellulosic biomasses...

A Blockchain-Enabled Indoor Navigation Framework Integrating Beacon Technology for Accessibility and Traceability

Abstract This article presents a computational framework integrating beacon and Blockchain technologies to develop a secure and accessible indoor navigation system for individuals with visual impairments. The proposed solution defines a flexible and extensible architecture that s...

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...

Coding for sustainability? Investigating how sustainable practices emerge in software development

Abstract This study investigates the adoption of sustainable practices in software development through a mixed-method approach that integrates quantitative and qualitative analyses. Grounded in the best practices proposed by the Green Software Foundation (GSF), a research instrum...