Publications by authors named "J BRUZUAL ACUNA"

Harmful algal blooms (HABs) are highly relevant for public health, the economy, the ecosystem, and biodiversity stability in southern Chile (40° to 53°S), where they occur regularly and are frequently monitored. However, HAB events and their associated microbes in northern Chile (17° to 30°S) remain unknown and difficult to track due to a lack of monitoring, particularly in urban areas. We investigated changes in microbial communities in coastal seawater before and during an Akashiwo sanguinea bloom (B) at two sampling points in Antofagasta city (23°38'39S, 70°24'39W).

View Article and Find Full Text PDF

Objectives: The prognostic characteristics of lung point-of-care ultrasound (L-POCUS) to predict respiratory decompensation in patients with emerging infections remains unstudied. Our objective was to examine whether scored lung ultrasounds predict hypoxia among a nonhypoxic, ambulatory population of patients with COVID-19.

Methods: This was a diagnostic case-control study.

View Article and Find Full Text PDF
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
View Article and Find Full Text PDF
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.
View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF