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ARTIFICIAL NEURAL NETWORKS TO ESTIMATE THE SORPTION AND DESORPTION OF THE HERBICIDE LINURON IN BRAZILIAN SOILS.
Environ Pollut
January 2025
Departamento de Agronomia e Ciências Florestais, Universidade Federal Rural do Semi-Árido, Mossoró, AV. Francisco Mota, 572 - Pres. Costa E Silva, Mossoró - RN, 59625-900, Rio Grande do Norte, Brazil. Electronic address:
Generally, herbicides used in Brazil follow manufacturer's recommendations, which often do not consider soil attributes. Statistical models that include the physicochemical properties of the soil involved in herbicide retention processes could enable greater precision in herbicide dose decision-making. This study evaluated the potential of artificial neural networks (ANNs) to predict the sorption and desorption of the herbicide linuron in Brazilian soils with different attributes.
View Article and Find Full Text PDFInvestigating polychlorinated alkanes in technical chlorinated paraffin mixtures and polymer products available in Vietnam.
Chemosphere
January 2025
Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam. Electronic address:
Chlorinated paraffins (CPs) are chemical additives mostly composed of polychlorinated alkanes (PCAs) which may impact on the environment and human health; however, little is known about their presence in Southeast Asia. To fill this knowledge gap, we assessed 74 PCA homolog groups commonly referred to as short-chain (SCCPs: PCAs-C), medium-chain (MCCPs: PCAs-C), and long-chain CPs (LCCPs: PCAs-C) in technical CP mixtures (n = 4) and polymer samples (n = 49), including recycled plastics, collected in Vietnam in 2023. The contents of measured PCA homolog groups in technical CP mixtures were 86,000-930,000 mg/kg for PCAs-C; 85,000-990,000 mg/kg for PCAs-C; and 23,000-180,000 mg/kg for PCAs-C.
View Article and Find Full Text PDFThe impact of vaccination on the length of stay of hospitalized COVID-19 patients in Brazil.
Vaccine
January 2025
Departamento de Epidemiologia, Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil; Escola de Matemática Aplicada, Fundação Getúlio Vargas (FGV), Rio de Janeiro, Brazil.
Background: The length of hospital stays for severe COVID-19 cases significantly impacts the overall burden on the health system. Current COVID-19 vaccines have proven effective at reducing severe cases. However, the influence of vaccination status on the progression of COVID-19 after hospitalization is not well understood.
View Article and Find Full Text PDFPrognostic value of changes in vibration-controlled transient elastography parameters for liver, cardiovascular and mortality outcomes in individuals with type 2 diabetes and metabolic dysfunction-associated steatotic liver disease: The Rio de Janeiro type 2 diabetes cohort.
Diabetes Obes Metab
January 2025
Department of Internal Medicine, University Hospital Clementino Fraga Filho, School of Medicine, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Background/aims: The prognostic importance of changes in vibration-controlled transient elastography (VCTE) parameters, liver stiffness measurement (LSM), and controlled attenuation parameter (CAP), in individuals with type 2 diabetes (T2D) and metabolic dysfunction-associated steatotic liver disease (MASLD) is unknown.
Methods: A prospective cohort of 288 patients underwent 2 VCTE exams at least 2 years apart, and the relative percentage changes in LSM and CAP were calculated. Outcomes were the occurrence of any liver-related events (LREs), cardiovascular events (CVEs), and all-cause mortality.
Environmental risk assessment methodology for urban tropical lagoons based on feasible lines of evidence under limited resources conditions: Jacarepaguá Lagoon/Brazil.
Ecotoxicology
January 2025
Department Sanitary and Environmental Engineering, Rio de Janeiro State University-UERJ, Rio de Janeiro, CEP, Brazil.
Determining environmental risk levels posed to different urban lagoon can provide an important overview regarding the relative severity of the environmental degradation of these ecosystems, increasing the risks visibility, which can be used as an important decision-making tool to prioritize investments. Jacarepaguá Lagoon (JPAL) is part of a coastal lagoon system comprising four interconnected lagoons in Rio de Janeiro city, Southeastern Brazil. Real estate speculation and insufficient sanitation infrastructure resulted in untreated sewage discharge into this ecologically sensitive lagoon system.
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