Communication: Shock adiabat of atomic nitrogen at megabar pressures.

We use spherical cellular method combined with a self-consistent density functional approach (quasizone method) to calculate the band structure and bulk properties of atomic nitrogen at megabar pressures and densities 3.2÷3.6 g/cm(3). Thermodynamic functions and shock adiabat calculated by this method correspond to recent measurements, showing a sharp increase in pressure along the shock adiabat in this range of densities.

Cell model of hydrogen liquid at megabar pressures.

We present a new model for the quantum fluid resulting from the melting of crystal hydrogen at megabar pressures. This model is based on a cell approach that takes into account of localized electron states and the effect of proton degeneration. The predictions of our model are in good agreement with recent experimental results on the anomalies in the melting process.

[Primary drug resistance of Mycobacterium tuberculosis in patients with new-onset destructive pulmonary tuberculosis].

In 2005-2007, primary drug resistance of Mycobacterium tuberculosis (MBT) was studied in 1318 patients with new-onset destructive pulmonary tuberculosis. This was identified in 31.8, 28.5, and 29.1% in 2005, 2006, and 2007, respectively. During these years, there was an increase in the primary rifampicin resistance of MBT from 28.8% in 2005 to 37.7% in 2007. Primary streptomycin resistance was 100% in 2007. The authors consider the primary resistance of MBT as a priority problem of phthisiology.