Quantifying NO point sources with Landsat and Sentinel-2 satellite observations of NO plumes.

We show that the Landsat and Sentinel-2 satellites can detect NO plumes from large point sources at 10 to 60 m pixel resolution in their blue and ultrablue bands. We use the resulting NO plume imagery to quantify nitrogen oxides (NO) emission rates for several power plants in Saudi Arabia and the United States, including a 13-y analysis of 132 Landsat plumes from Riyadh power plant 9 from 2009 through 2021. NO in the plumes initially increases with distance from the source, likely reflecting recovery from ozone titration.

Multidisciplinary management and optimization of frail or high surgical risk patients in colorectal cancer surgery: Prospective observational analysis.

Introduction: Frailty is associated with greater postoperative morbidity and mortality. Individualized multidisciplinary management of these patients can improve the quality of care. The objectives of this study are to determine the percentage of frail patients with colorectal cancer in our population, and to describe the morbidity and mortality associated with surgery and the evolution of palliative treatment.

Response of the biomining Acidithiobacillus ferrooxidans to high cadmium concentrations.

Cadmium is a heavy metal present in contaminated soils. It has no biological role but when entering cells generates DNA damage, overexpression of stress response proteins and misfolded proteins, amongst other deleterious effects. Acidithiobacillus ferrooxidans is an acidophilic bacterium resisting high concentrations of heavy metals such as cadmium.