Charge Transfer, Change of the Spin Value, and Driving of Magnetic Order by Pressure in Bimetallic Molecular Complexes.

The magnetic bimetallic molecular-based compounds attract considerable attention because of their unique characteristics which are very different from those of traditional magnets. We demonstrate the effects of charge transfer as well as spin and magnetic order changes induced by high hydrostatic pressure applied to the two bimetallic multifunctional Prussian blue analogues, KCo[Fe(CN)]·18HO and KMn[Fe(CN)]·6HO. Two opposite directions of change in their properties under pressure are revealed: (i) the magnetization reduction and magnetic order disappearing for the KCo[Fe(CN)]·18HO compound and (ii) an increase of the magnetization and change of the sign of exchange coupling for the KMn[Fe(CN)]·6HO compound.

Comparative efficiency analysis of fiber-array and conventional beam director systems in volume turbulence.

The performance of two prominent laser beam projection system types is analyzed through wave-optics numerical simulations for various atmospheric turbulence conditions, propagation distances, and adaptive optics (AO) mitigation techniques. Comparisons are made between different configurations of both a conventional beam director (BD) using a monolithic-optics-based Cassegrain telescope and a fiber-array BD that uses an array of densely packed fiber collimators. The BD systems considered have equal input power and aperture diameters.

RESULTS OF HIP ARTHROPLASTY AFTER OSTEOSYNTHESIS OF PROXIMAL FEMUR.

The hip arthroplasty in case of destructive - dystrophic affection is considered as the most effective method, which provided social and home reintegration. A modern science development facilitates to this technique. However, specialists noted that the rate of endoprosthesis complication increased in the patients after osteosynthesis of proximal femur.

[Magnetic resonance imaging in the diagnosis of lacrimal tract pathology].

Magnetic resonance imaging (MRI) was used to examine 45 patients (23 females and 22 males) aged 16-67 years with lacrimal tract pathology on a Sigma Gorizont magnetic resonance (MR) tomograph ("General Electric"). This yielded head MR scans in the frontal, axial, and sagittal projections. The thickness of MR sections was 2-3 mm.