Publications by authors named "A S Mansano"
The semiconductor copper tungstate (CuWO) may end up in aquatic ecosystems since it has the potential for water decontamination. The toxic effects of CuWO are totally unknown for eukaryotic organisms. In view of this, we aimed to evaluate the toxicity of CuWO particles (size of 161.
View Article and Find Full Text PDFWe investigated the occurrence and the environmental risk of eight contaminants of emerging concern (CECs; acetaminophen, naproxen, diclofenac, methylparaben, 17β-estradiol, sulfathiazole, sulfadimethoxine, and sulfamethazine) in three Brazilian water bodies, namely, the Monjolinho River Basin (São Paulo State), the Mogi Guaçu River (São Paulo State), and the Itapecuru River (Maranhão State) in three sampling campaigns. The CECs were only quantified in surface water samples collected at the Monjolinho River Basin. Acetaminophen, naproxen, and methylparaben were detected in the range of <200 to 575.
View Article and Find Full Text PDFIt is crucial to investigate the effects of mixtures of contaminants on aquatic organisms, because they reflect what occurs in the environment. Cadmium (Cd) and nickel (Ni) are metals that co-occur in aquatic ecosystems, and information is scarce on their joint toxicity to Chlorophyceae using multiple endpoints. We evaluated the effects of isolated and combined Cd and Ni metals on multiple endpoints of the chlorophycean Raphidocelis subcapitata.
View Article and Find Full Text PDFArticle Synopsis
- ZnWO nanoparticles (ZnWO-NPs) are used in various applications like sensors, lasers, and batteries, but their effects on aquatic ecosystems remain unclear.
- This study is the first to assess the toxicity of ZnWO-NPs on the green microalga Raphidocelis subcapitata, revealing growth inhibition and changes in photosynthesis at specific concentrations.
- The findings indicate that high levels of ZnWO-NPs can disrupt biochemical processes in microalgae, which could have broader implications for aquatic food chains and ecosystem health.
Background: Ultrasound (US) guidance is widely used for needle positioning for cervical medial branch blocks (CMBB) and radiofrequency ablation, however, limited research is available comparing different approaches.
Objective: We aimed to assess the accuracy and safety of 3 different US-guided approaches for CMBB.
Study Design: A cadaveric study divided into ultrasound-guided needle placement and fluoroscopy evaluation stages.