First-principles study of Mn adsorbed on Au(111) and Cu(111) surfaces.

A theoretical study of the Mn trimer adsorbed on the noble metal surfaces Au(111) and Cu(111) is reported. The calculations were performed using first-principles methods within the density functional theory and the generalized gradient approximation in the collinear and non-collinear magnetic phases. The system was modeled by considering a surface unit cell of 25 atoms to improve the trimer's isolation on the surface.

Malnutrition and nutrition support in COVID-19: The results of a nutrition support protocol.

Introduction: COVID-19 is characterized by various clinical manifestations, mainly respiratory involvement. Disease-related malnutrition is associated with impaired respiratory function and increased all-cause morbidity and mortality. Patients with COVID-19 infection carry a high nutritional risk.

[Home and Ambulatory Artificial Nutrition (NADYA) Group report: home parenteral nutrition in Spain, 2019].

Aim: to communicate the home parenteral nutrition (HPN) data obtained from the HPN registry of the NADYA-SENPE group (www.nadya-senpe.com) for the year 2019.