The increasing utilization of agro-industrial waste underscores the necessity for sustainable valorization strategies consistent with circular economy principles. In this study, corn husk residue was investigated as a precursor to produce chemically activated biochars with tunable surface chemistry and porosity, enabling targeted adsorption of the cationic dye methylene blue (MB) and the anionic dye methyl orange (MO). Two act...

The presence of the franciscana ( Pontoporia blainvillei ) at the northern limit of the FMA II was investigated using a range of methods, including monitoring of strandings, boat surveys, and passive acoustic monitoring (PAM). Franciscana strandings were recorded within the distributional gap between Macaé (22°55′ S) and Ilha Grande (23°09′ S), suggesting that the northern boundary of the FMA II may extend as far as Jaconé (22...

Understanding male sexual maturity in penaeid shrimp is crucial for stock assessment and size‐based management; however, maturity criteria remain heavily biased toward females and rarely validated for males. This study evaluated whether petasma fusion is a reliable external indicator of male sexual maturity in white shrimp Penaeus schmitti from Northeast Brazil and estimated size at first maturation using an integrative morpho...

The olfactory bulb (OB) is one of the earliest brain regions affected in neurodegenerative diseases such as Parkinson’s disease (PD). Its high metabolic rate, dopaminergic modulation, and connectivity with the cortical and limbic regions make it particularly vulnerable to early neuroinflammatory and oxidative processes. This study aimed to investigate whether the administration of 6-hydroxydopamine (6-OHDA) into the OB induces...

Under field conditions, predator–prey interactions can be modulated by the diverse availability and suitability of food resources, which diet type may alter biological and behavioral parameters of predators. Amblyseius largoensis and Euseius concordis are phytoseiid predatory mites identified as potential biological control agents for the giant whitefly, Aleurodicus cocois , a major pest of cashew trees. In the present study,...

Introduction: Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive disorder caused by pathogenic variants in CYP27A1 , leading to cholestanol accumulation and progressive neurological dysfunction. Neurofilament light chain (NfL) is a biomarker of neuroaxonal injury in several hereditary ataxias, but its role in CTX has not been investigated. We aimed to determine whether serum NfL is elevated in CTX and whether i...

This study compares daily and monthly precipitation data from the Brazilian Daily Weather Gridded Data (BR-DWGD), Climate Hazards Center InfraRed Precipitation With Station Data (CHIRPS) and Integrated Multi-satellitE Retrievals for GPM (IMERG) products with observations from four rainfall stations in the Ipojuca River Basin, in Pernambuco, Brazil, from 2001 to 2022. Daily data from four rain gauge stations in the municipaliti...

Insects, belonging to the phylum Arthropoda, play essential roles in ecosystems, play essential roles in ecosystems, such as pollination, pest control, and decomposition. However, some species are vectors of diseases, which makes the development of control methods crucial. The use of synthetic insecticides, although effective, causes serious environmental and health problems. As an alternative, plant essential oils, which are...

Doxorubicin (DOX)-induced cardiotoxicity is widely studied using C57BL/6 mice. However, potential substrain differences between C57BL/6J (6J) and C57BL/6N (6N) remain unexamined. Comparative studies are needed to improve preclinical reproducibility and translation. Fifteen-week-old male 6N and 6J mice received either DOX (8 mg/kg/week for 3 weeks) or saline. Body weight was monitored weekly, followed by echocardiography to ass...

Understanding variation in home range size (HR) provides important insights into the underlying ecological processes driving space use. However, it remains unclear whether the interspecific allometric scaling of mammals' HR can also be consistently observed within species and for both sexes. To address this knowledge gap, we GPS‐tracked 349 resident individuals across Brazil, encompassing 18 mammal species. We estimated indivi...