Tuning ferroelectric photovoltaic performance in 3-CuNbO through compressive strain engineering: a first-principles study.

Most ferroelectric oxides exhibit relatively wide bandgaps, which pose limitations on their suitability for photovoltaics application. CuNbO possesses potential ferroelectric properties with an 3 polar structure that facilitate the separation of charge carriers under illumination, promoting the generation of photovoltaic effects. The optical and ferroelectric properties of 3-CuNbO, as well as the effect of strain on the properties are investigated by first-principles calculation in this paper.

Theoretical study on the stability, ferroelectricity and photocatalytic properties of CaBiO.

Materials with high ferroelectric polarization strength and sufficient absorption of visible light have unique advantages in photocatalysis. Based on the results of structure search, phonon frequency, and elasticity coefficient calculations, CaBiO has a stable 3 polar structure. First-principles calculations indicate that 3-CaBiO is a potentially efficient ferroelectric visible-light photocatalytic material for hydrogen production.

Venous-arterial extracorporeal membrane oxygenation support for patients poisoned by Macleaya cordata.

is a Chinese herbal medicine containing a variety of highly cardiotoxic alkaloids, and might result in cardiac failure. Venous-arterial Extracorporeal membrane oxygenation (VA-ECMO) could be used as a therapeutic option in patients poisoned by complicating refractory cardiogenic shock or cardiac arrest. A 60-year-old man suffered from severe arrhythmia, cardiogenic shock and cardiac arrest after consuming .

Stability conditions for moving dissipative solitons in one- and multidimensional systems with a linear potential.

We analyze stability of moving dissipative solitons in the one-, two, and three-dimensional cubic-quintic complex Ginzburg-Landau equations in the presence of a linear potential (linear refractive index modulation). The expressions of stability conditions and propagation trajectory of solitons are derived by means of a generalized variational approximation. Predictions of the variational analysis are fully confirmed by direct numerical simulations.

[Luminescence dynamics analysis on ruthenium polypyridyl complexes bonding to DNA].

Time-resolved spectra of six kinds of ruthenium polypyridyl complexes [Ru(L)2 (R)]2+ (L = bpy, phen, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, R = 7-CH3-dppz, 7-F-dppz, dpbpd(NH2)2) bonding to calf thymus DNA in aqueous solution were compared and analyzed by using the three energy level kinetic model. And the effects of the substituent groups on the interaction ways for the ruthenium complexes bonding to DNA were discussed. The result shows that first, the six complexes all show two binding modes on bonding to DNA, i.