Hyperbaric treatment of platelets extends in vitro storage to 14 days.

Background: Platelets for transfusion have a storage time of 5-7 days at 22°C-24°C, which results in a strain on the supply chain and supply shortages. We describe a novel method to extend platelet storage using xenon (Xe) gas under high pressure and refrigeration.

Study Design And Methods: Apheresis platelets (APU) prepared in 65% platelet additive solution (PAS) were stored under standard conditions (SC) at 20°C-24°C to Day 5.

A methodology for analyzing and forecasting sociopolitical destabilization.

The article presents a methodology for the analysis of political crises meant to assess the current situation of sociopolitical (in)stability of the developing and developed societies in question, provide an inertial forecast of the developing situation in a given period, analyse threats to stability threats, and examine possible measures to counteract such threats and their likely influence on the situation. The methodology is based on modeling sociopolitical stability in the country in question with the help of an elaborate logical-mathematical model.

Anomalous nitrogen isotope ratio in comets.

High-resolution spectra of the CN B2 summation operator +-X2 summation operator + (0,0) band at 390 nanometers yield isotopic ratios for comets C/1995 O1 (Hale-Bopp) and C/2000 WM1 (LINEAR) as follows: 165 +/- 40 and 115 +/- 20 for 12C/13C, 140 +/- 35 and 140 +/- 30 for 14N/15N. Our N isotopic measurements are lower than the terrestrial 14N/15N = 272 and the ratio for Hale-Bopp from measurements of HCN, the presumed parent species of CN. This isotopic anomaly suggests the existence of other parent(s) of CN, with an even lower N isotopic ratio.