Worldwide scientific efforts on nursing in the field of SARS-CoV-2: a cross-sectional survey analysis.

Introduction: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been a global public health issue. This study aimed to characterize global nursing research on SARS-CoV-2.

Methodology: Nursing-related publications through December 31, 2022, were identified using Scopus.

One-Pot Synthesis of Alumina-Titanium Diboride Composite Powder at Low Temperature.

Alumina-titanium diboride (AlO-TiB) composite powders were synthesised via aluminothermic reduction of TiO and BO, mediated by a molten chloride salt (NaCl, KCl, or MgCl). The effects of salt type, initial batch composition, and firing temperature/time on the phase formation and overall reaction extent were examined. Based on the results and equilibrium thermodynamic calculations, the mechanisms underpinning the reaction/synthesis processes were clarified.

Effects of Sodium Hexametaphosphate Addition on the Dispersion and Hydration of Pure Calcium Aluminate Cement.

The effects of sodium hexametaphosphate (SHMP) addition on the dispersion and hydration of calcium aluminate cement were investigated, and the relevant mechanisms discussed. The content of SHMP and the adsorption capacity of SHMP on the surface of cement particles were estimated using plasma adsorption spectroscopy and the residual concentration method. The rheological behavior of hydrate, -potential value of cement particles, phase transformation and the microstructure of the samples were determined by coaxial cylinder rheometer, zeta probe, X-ray diffraction (XRD) and scanning electron microscopy (SEM).

Low Temperature Synthesis of Phase Pure MoAlB Powder in Molten NaCl.

MoAlB fine powders were prepared in molten NaCl from Al, B and Mo powders. The effects of key parameters affecting the synthesis process and phase morphology were examined and the underpinning mechanisms proposed. MoAlB product particles exhibited different shapes/sizes, as follows: spherical grains (1~3 μm), plate-like particles (<5 μm in diameter) and columnar crystals with lengths up to 20 μm and diameters up to 5 μm, resultant from different reaction processes.

Low-Temperature Molten Salt Synthesis and the Characterisation of Submicron-Sized AlBC Powder.

Submicron-sized (~200 nm) aluminium boron carbide (AlBC) particles were synthesised from Al, BC and carbon black raw materials in a molten NaCl-based salt at a relatively low temperature. The effects of the salt type/assembly and the firing temperature on the synthesis process were examined, and the relevant reaction mechanisms discussed. The molten salt played an important role in the AlBC formation process.

Electrophysiologic characteristics of the Crista terminalis and implications on atrial tachycardia in rabbits.

The objective of this study was to evaluate the electrophysiologic characteristics of Crista terminalis (CT) and their implication in the pathogenesis of atrial tachycardia in rabbits. For this purpose, 27 New Zealand rabbits were used. Using standard glass microelectrode technique, cellular action potentials (APs) of CT and pectinate muscle (PM) were recorded in normal Tyrode's perfusion and Tyrode's perfusion with 4 μM isoproterenol.