Gallium Doping Effects for Improving Switching Performance of p-Type Copper(I) Oxide Thin-Film Transistors.

Copper(I) oxide (CuO), which is obtained from copper(II) oxide (CuO) through a reduction process, is a p-type oxide material with a band gap of 2.1-2.4 eV.

Production of Cu@SiO₂ Core-Shell Nanoparticles with Antibacterial Properties.

Antimicrobial agents based on organic materials have limited use owing to their low heat resistance and short lifetimes. Therefore, various studies on antibacterial agents that are based on inorganic material systems are increasingly being performed to supplement them. In this study, Cu@SiO₂ core-shells are fabricated using Cu cores and SiO₂ shells, and are known to have antimicrobial effects.

Water Resistances of Ag₂O-, BaO-, and CuO-Doped V₂O-P₂O-TeO₂ Glass Sealants.

V₂O-P₂O-TeO₂, a low-temperature vanadate-based glass sealant, was doped with metal oxides (MO = Ag₂O, BaO, or CuO), which generate Ag, Ba, and Cu ions, respectively, to strengthen the glass structure and improve its water resistance. These ions reduce the number of nonbridging oxygen atoms in the glass structure by forming V-O-M or P-O-M crosslinks in the V₂O-P₂O glass system. Structural analysis using Fourier-transform infrared spectroscopy indicated that the numbers of P-O-P, V═O, and V-O-V bonds decreased with increasing metal oxide content.

Head Elevation in Spinal-Epidural Anesthesia Provides Improved Hemodynamics and Appropriate Sensory Block Height at Caesarean Section.

Purpose: We aimed to determine whether head elevation during combined spinal-epidural anesthesia (CSE) and Caesarean section provided improved hemodynamics and appropriate sensory block height.

Materials And Methods: Forty-four parous women undergoing CSE for elective Caesarean section were randomly assigned to one of two groups: right lateral (group L) or right lateral and head elevated (group HE) position, for insertion of the block. Patients were positioned in the supine wedged position (group L) or the left lateral and head elevated position (group HE) until a block height of T5 to light touch was reached.

Selective synthesis of diameter- and interlayer-controlled carbon nitride nanotubes with hydrogen ensnaring nanopores.

Diameter- and interlayer-controlled carbon nitride nanotubes (CNNTs) having nanopores with approximately 6 A diameters are synthesized by our new plasma-assisted growth method on catalysts located inside the organic silica mesoporous templates. Our experiments and first-principles calculations show that hydrogen stored inside nanopores of 6.2 A are attributed to the hydrogen released at 257.