Pre-exposure of abundant species to disturbance improves resilience in microbial metacommunities.

Understanding factors influencing community resilience to disturbance is critical for mitigating harm at various scales, including harm from medication to gut microbiota and harm from human activity to global biodiversity, yet there is a lack of data from large-scale controlled experiments. Factors expected to boost resilience include prior exposure to the same disturbance and dispersal from undisturbed patches. Here we set up an in vitro system to test the effect of disturbance pre-exposure and dispersal represented by community mixing.

Temporal Changes in the Role of Species Sorting and Evolution Determine Community Dynamics.

Evolutionary change within community members and shifts in species composition via species sorting contribute to community and trait dynamics. However, we do not understand when and how both processes contribute to community dynamics. Here, we estimated the contributions of species sorting and evolution over time (60 days) in bacterial communities of 24 species under selection by a ciliate predator.

Reporting and managing ethical issues in intensive care using the critical incident reporting system.

Background: Intensive care nurses frequently encounter ethical issues with potentially severe consequences for nurses, patients, and next of kin. Therefore, ethical issues in intensive care units (ICU) should be recognized and managed.

Research Objectives: To analyze ethical issues reported by intensive care nurses and how reported issues were managed within the organization using register data from the HaiPro critical incident reporting system (CIRS), and to explore the suitability of this system for reporting and managing ethical issues.

Complete genome sequences of 30 bacterial species from a synthetic community.

We present complete genome sequences from 30 bacterial species that can be used to construct defined synthetic communities that stably form in the laboratory under controlled conditions.

Differences in heart rate responses to upright posture are associated with variations in the high-frequency power of heart rate variability.

High resting heart rate is a cardiovascular risk factor, but limited data exist on the underlying hemodynamics and reproducibility of supine-to-upright increase in heart rate. We recorded noninvasive hemodynamics in 574 volunteers [age, 44.9 yr; body mass index (BMI), 26.