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Anais da Academia Brasileira de Ciências
Scopus
ISSN 0001-3765 · Academia Brasileira de Ciências · 5,130 articles in the index
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Polyethylene glycol-nano composite thermal conductivity: Introduction of data-driven models
Abstract The thermal conductivity of polyethylene glycol (PEG)-nanocomposites is crucial for their use in thermal management systems, underscoring the need for accurate predictive models. This study develops a Gradient Boosting Machine (GBM) model optimized with four algorithms: Batch Bayesian…
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Knowledge Trends and Emerging Challenges in Neotropical Aquatic Insect Research: An Analysis of the VII Symposium on Neotropical Aquatic Insects
Abstract The Neotropical region harbors rich biodiversity, with aquatic insects playing key ecological roles. Despite research advances, challenges like taxonomic gaps and logistics persist. The seventh Neotropical Aquatic Insects Symposium (VII SIAN; Belém, 2025) gathered 410 participants and 364…
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Marsh beetles (Coleoptera: Scirtidae) of the Amazon biome: integrative collecting techniques, information of immatures’ habitats, and a rearing method under laboratory conditions, along with new species records
Abstract Scirtidae are beetles whose larvae are aquatic and can be found in various habitats. The objectives of this study were to explore several aquatic habitats in the Amazon biome in search of Scirtidae using different methods for collecting larvae and adults, to propose a new reproduction…
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The APC Barrier: Silencing Public Health Voices and Marginalizing Case Reports
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Molecular differentiation between Plinia cauliflora (Mart.) Kausel and Plinia trunciflora (O. Berg) Kausel using nuclear SSR markers
Abstract Molecular markers are important tools for genetic studies, including evolution, species differentiation, and population genetics. The genus Plinia (Myrtaceae) consists of various fruit tree species, some of which are referred to as jaboticaba. The subtle interspecific morphological…
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Long-term survey SISBIOTA-Diptera reveals three new species of Sarcophagidae (Diptera, Oestroidea)
Abstract Three new species of Sarcophagidae are described based on adult male specimens collected in the SISBIOTA-Diptera project survey. The new species belong to the genera Dexosarcophaga Townsend, D. papia sp. nov., Lepidodexia Brauer & Bergenstamm, L. aenigmatica sp. nov., and Rettenmeyerina…
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Immunophenotypic analysis and clinical significance in pediatric hemophagocytic lymphohistiocytosis
Abstract This study characterizes changes in peripheral blood lymphocyte subsets among pediatric hemophagocytic lymphohistiocytosis (HLH) patients. Compared to healthy controls, HLH patients exhibited significantly elevated levels of CD8⁺ T cells, with concomitant reductions in B cells, CD4⁺ T…
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Analyzing Codon Usage Patterns in Human Papillomavirus Type 18
Abstract Human papillomavirus type 18, a high-risk oncogenic strain, significantly contributes to cervical and anogenital/oropharyngeal cancers. This investigation examines the codon usage patterns of Human papillomavirus type 18 to understand its evolutionary adaptation and therapeutic…
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Probiotic effects on rumen ciliate community in dairy cows: A multi taxonomic assessment
Abstract The rumen ciliate protozoa represent a significant component of the microbial ecosystem in ruminants, contributing to the degradation of complex carbohydrates, intra-ruminal nitrogen recycling, and interactions with methanogenic archaea. Despite their importance, the effects of probiotic…
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Alcohol Consumption and Driving in Brazil: A Panel Study of 731,683 Individuals from 2007 to 2022
Abstract The aim was to analyze the prevalence of driving in traffic preceded by alcohol abuse, and associated factors, in Brazil in the period between 2007 to 2022. A panel study was carried out based on data from the Surveillance of Risk and Protective Factors for Chronic Diseases by Telephone…
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Implications of removing parameters from a mathematical model on relationships among traits in assays with growth-promoting bacteria in soybean crop
Abstract The objetive assess the implications of removing parameter effects from a mathematical model on linear relationships in trials with growth-promoting bacteria in soybean crops. The design used consisted of randomized blocks, with four replications. First factor: i) Bradyrhizobium spp. +…
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Undernutrition and Clinical Deterioration in Children with Cystic Fibrosis: Findings from a Prospective Study
Abstract Cystic Fibrosis is a genetic disease that causes dysfunctions in the transmembrane chloride conductance regulatory protein in epithelial cells. The main manifestations are persistent pulmonary symptoms and low weight gain. Therefore, nutrition plays an essential role in the survival and…
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Healing activity evaluation of a galactomannan gel with Cratylia mollis seed lectin (Cramoll) in mice lesions infected by Staphylococcus aureus
Abstract This study evaluated the healing potential of a galactomannan gel, obtained from the seeds of Cassia grandis, and the glucose/mannose specific lectin extracted from Cratylia mollis seeds (Cramoll), free and incorporated in the gel, in BALB/c mice skin lesions induced by Staphylococcus…
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Threatened pollinator and plant species in megadiverse countries: what we have learned from a synthesis of interactions for Brazil
Abstract Plant-pollinator interactions are essential for the reproduction of most flowering plants and the maintenance of biodiversity. With each new assessment of threat status, new plants and pollinators are included in the list of threatened species. However, the ecological interactions…
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New Generic Placements and Typifications for names in Chrysocoma (Asteraceae) Described in Vellozo’s Florae Fluminensis
Abstract The taxonomic identity of Chrysocoma linearis, C. monantha, and C. opposita (Asteraceae), described in Vellozo’s Florae Fluminensis, is reassessed. Based on the analysis of the protologues, original illustrations, and additional taxonomic evidence, we propose two new combinations in…
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Socioeconomic factores and unhealthy behaviors associated with the Dietary Inflammatory Index: ELSA-Brasil study
Abstract Dietary components influence inflammation, and eating behaviors are shaped by living conditions, requiring interpretation within broader social and health contexts. The aim of this study is to identify the relationship between socioeconomic conditions and lifestyle habits and the Dietary…
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Enhancing biological activities and antioxidant bioaccessibility in fresh Campomanesia xanthocarpa fruit using yeasts from naturally fermented Gabiroba pulp
Abstract Gabiroba (Campomanesia xanthocarpa Berg) is a nutritious fruit native to the Atlantic Forest, recognized for its juicy, sweet, and aromatic flavor, but remains unexplored as a source of biotechnological yeasts. This study aimed to isolate and identify yeasts from naturally fermented…
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Planting Strategies for Lettuce in an Aquaponic-BFT System with Nile Tilapia
Abstract This study evaluated Lactuca sativa performance in an integrated aquaponic–biofloc system with Oreochromis niloticus using 500 L fish tanks, 100 L biofloc units, and NFT hydroponics under three planting strategies. The 30-day experiment showed no differences in water quality or fish…
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Green Synthesis and Characterization of Silver Nanoparticles from Pinus nigra Cones: Antioxidant, Antibacterial, and Synergistic Effects
Abstract Silver nanoparticles (AgNPs) were synthesized through a green and sustainable approach using aqueous extracts of immature Pinus nigra cones. Characterization by UV-Vis, FT-IR, SEM-EDS, TEM, and XRD confirmed the formation of spherical nanoparticles (22-40 nm) with a face-centered cubic…
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