Stable Oxygen Incorporation in Superconducting TaN: An Experimental and Theoretical Assessment.

Oxide formation in superconducting TaN thin films is analyzed through experimental measurements and computational simulations. TaN was synthesized in an ultrahigh vacuum (UHV) system by reactive pulsed laser deposition and characterized by X-ray photoelectron spectroscopy; it was also characterized by X-ray diffraction, transmission electron microscopy, and the four-point probe method. Despite being grown in an UHV chamber with a base pressure of 5 × 10 Torr, TaN contains a significant amount of oxygen (up to 20 at.

[Vitamin D in a pediatric population after the end of home lockdown: a prospective study].

Unlabelled: Home confinement during the onset of the SARS-CoV-2 pandemic decreased sunlight exposure, the main source of vitamin D in the body.

Objective: To evaluate the impact of SARS-CoV-2 confinement on 25-hydroxyvitamin D (25-OH-VD) levels in a pediatric population.

Patients And Methods: Observational study in a Spanish pediatric population between June and October 2020.

Regulation of phosphorylation of synaptic and extrasynaptic GluA1 AMPA receptors in the rat forebrain by amphetamine.

The AMPA receptor is regulated by phosphorylation. Two major phosphorylation sites (S831 and S845) are located in the intracellular C-terminal tail of GluA1 subunits. The phosphorylation on these sites controls receptor expression and function and is subject to the regulation by psychostimulants.

Accuracy and precision of three echocardiographic methods for estimating mean pulmonary artery pressure.

Background: Pulmonary hypertension is defined as resting mean pulmonary artery pressure (MPAP) ≥ 25 mm Hg. MPAP pressure estimation by right-sided heart catheterization (RHC) is considered the gold standard; however, its invasiveness limits repeated and frequent use. The purpose of this study was to compare the accuracy and precision of three echocardiographic methods for estimating MPAP.