Random Matrix Theory Analysis of a Temperature-Related Transformation in Statistics of Fano-Feshbach Resonances in Thulium Atoms.

Recently, the transformation from random to chaotic behavior in the statistics of Fano-Feshbach resonances was observed in thulium atoms with rising ensemble temperature. We performed random matrix theory simulations of such spectra and analyzed the resulting statistics in an attempt to understand the mechanism of the transformation. Our simulations show that, when evaluated in terms of the Brody parameter, resonance statistics do not change or change insignificantly when higher temperature resonances are appended to the statistics.

Random to Chaotic Statistic Transformation in Low-Field Fano-Feshbach Resonances of Cold Thulium Atoms.

Here, we report on the observation of a random to chaotic temperature transformation in the statistics of nearest-neighbor spacings of Fano-Feshbach resonances in the ultracold polarized gas of thulium-169 atoms. We associate this transformation to the appearance of so-called d resonances as well as the shift of other resonances with the temperature. In addition to this statistical change, it has been observed that the characters of s- and d-resonance temperature shifts are quite different: s resonances experience almost no shift or even negative shift with the temperature, while d resonances experience an obvious positive shift.

Heavy Metals in Bottom Sediments of Lake Kenon (The Trans-Baikal Territory, Russia).

Concentrations of heavy metals in bottom sediments of Lake Kenon in descending order are distributed as follows: Mn > Zn > Pb > Mo > Cd. Spatial distribution of metals in bottom sediments of Lake Kenon depends on composition of bottom deposits (sands in shallow water and sapropel silt in the deep part), location of contamination sources (thermal power station, residential area), as well as density and duration of growth of aquatic plants. The greatest pollution of bottom sediments was observed in the area of TPP-1.

Double Entropy Inter-Rater Agreement Indices.

The proper application of the most frequently used inter-rater agreement indices can be problematic for the case of a single target, for example, a psychotherapy patient, a student's thesis, a grant proposal, and the lifestyle in a country. The majority of indices that can handle this case assess either the deviation of ranks from some central/average value or the pattern of ranks' distribution. Contrary to other approaches, this article defines disagreement rating results using the unpredictability/complexity of scores.

[Formation and development of flight-surgeon examination in the Branch No. 1 of Main Military Clinical Hospital n. a. N.N.Burdenko].

The history of formation and development of branch No. 1 FSI "Main Military Clinical Hospital n. a.