Publications by authors named "J A Acuna"
Article Synopsis
- * The study utilized Empirical Dynamic Modelling to analyze phytoplankton data, focusing on two groups of the Pseudo-nitzschia species and their connections with other phytoplankton, as well as environmental factors like temperature and salinity.
- * Findings indicated that each Pseudo-nitzschia group had specific partner algal species, with salinity influencing the Pseudo-nitzschia seriata group, while temperature had no significant effect; this research offers a new way to predict harmful algal blooms via species
Article Synopsis
- The extreme and remote high-latitude regions of Antarctica, particularly near the South Pole, have shown the presence of microbial life, with limited knowledge about their genetic traits and capabilities.
- Research focused on soils from Union Glacier revealed a less diverse bacterial community compared to other regions, with predominant phyla being Actinomycetota and Pseudomonadota, and identified over 80 species-level genomes, including a novel ammonia-oxidizing archaeon.
- The study discovered multiple antibiotic-resistant bacteria with potential pathogenic qualities, which produced various virulence factors, highlighting concerns about microbial resistance emerging from these isolated environments.
Objective: To address the current practice of liberating patients from invasive mechanical ventilation in pediatric intensive care units, with a focus on the use of standardized protocols, criteria, parameters, and indications for noninvasive respiratory support postextubation.
Methods: Electronic research was carried out from November 2021 to May 2022 in Ibero-American pediatric intensive care units. Physicians and respiratory therapists participated, with a single representative for each pediatric intensive care unit included.
Niobium carbide (NbC) is a high-field type II superconductor with a critical temperature () of 11.1 K, slightly exceeding that of pure Nb ( = 9 K). The reduction of NbC to the nanoparticle scale leads to significant changes in its critical field and/or the superconducting temperature.
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- Antibiotics and herbicides are becoming major pollutants in aquatic environments, prompting a study in Lake Villarrica, Chile, known for its high nutrient levels.
- Researchers used qPCR to analyze antibiotic-resistant genes (ARGs) and herbicide-catabolic genes (HCGs) in sediment samples, finding widespread presence, especially near urban and agricultural areas.
- They isolated 46 strains of bacteria resistant to multiple antibiotics and capable of using herbicides for growth, indicating potential ecological impacts and the need for further research on contamination and bacterial behavior in sediments.