Anodic TiOnanotube arrays for photocatalytic COconversion: comparative photocatalysis and EPR study.

Titania (TiO) is a widely used semiconductor for the photocatalytic decomposition of organic impurities in air, water and the conversion of COinto hydrocarbon fuel precursors. TiOin the form of nanotubes arrays is the most attractive for practical use because of the morphological advantages providing more favorable diffusion of photocatalytic reaction products and a low recombination rate of photogenerated electrons and holes. We have carried out a comparative study of the photocatalytic activity of gas-phase conversion of COto hydrocarbon products and the defect properties of multi-walled and single-walled arrays of TiOnanotubes.

Peculiarities of Low-Temperature Behavior of Liquids Confined in Nanostructured Silicon-Based Material.

This study is devoted to the confinement effects on freezing and melting in electrochemical systems containing nanomaterial electrodes and liquid electrolytes. The melting of nanoparticles formed upon freezing of liquids confined in pores of disordered nanostructured -type silicon has been studied by low-temperature differential scanning calorimetry. Experimental results obtained for deionized water, an aqueous solution of potassium sulfate, and -decane are presented.

FACTORS INFLUENCING RECOVERY AFTER PANCREATODUODENECTOMY: UNICENTER EXPERIENCE.

Our purpose was to determine the incidence of pancreatic fistula (POPF) and delayed gastric emptying (DGE), assess impact of these and other potential factors of influence on overall survival. We analyzed 97 patients who underwent pancreaticoduodenectomy between 2012 and 2018 years. POPF grade B was present in 7 (7,1%) and grade C in 8 (8,2%).

Glendonite occurrences in the Tremadocian of Baltica: first Early Palaeozoic evidence of massive ikaite precipitation at temperate latitudes.

The Tremadocian (Early Ordovician) is currently considered a time span of greenhouse conditions with tropical water surface temperature estimates, interpolated from oxygen isotopes, approaching 40 °C. In the mid-latitude Baltoscandian Basin, conodonts displaying low δO values, which suggest high temperatures (>40 °C) in the water column, are in contrast with the discovery of contemporaneous glendonite clusters, a pseudomorph of ikaite (CaCO·6HO) traditionally considered as indicator of near-freezing bottom-water conditions. The massive precipitation of this temperature sensitive mineral is associated with transgressive conditions and high organic productivity.