Thermal behavior of flux jumps and influence of pulse-shape on the trapped field during pulsed magnetization of a high-temperature superconductor.

The impact of temperature on the pulsed magnetization of a high-temperature superconductor (HTS) has been numerically studied. The resulting trapped field (TF) and its distribution over the HTS have been calculated for samples with random and periodic pinning (a regular triangular lattice). The increasing ambient temperature (within the considered values) has been shown to improve the field-trapping efficiency and lead to the possibility of pumping more flux into the sample with each consecutive pulse (contrary to the low-temperature case).

Modeling of vortex dynamics in HTSs with defects under the impact of pulsed magnetic field.

By means of the Monte Carlo method, a numerical study of the vortex system in a high-temperature superconductor under the impact of pulses of magnetic field has been conducted. Various shapes and amplitudes of pulses have been considered. Samples with random and regular distributions of three different numbers of defects have been compared from the viewpoint of efficiency of flux trapping.

[Identification of the open reading frame coding transposase of Bordetella pertussis RS-element].

A computer-aided analysis of the repeating sequence of Bordetella pertussis chromosome (RSBP3) revealed 3 open reading frames, one of whose (ORF1) can code a protein whose structure and properties are similar to those of transposasas, i.e. enzymes in charges for the traveling of migrating genetic elements of pro- and eukaryote.

[Formation of two types of a proteolytically cleaved nucleoprotein in cells, infected by influenza virus].

Two types of proteolytically cleaved influenza virus nucleoprotein (NP) are formed in cells infected with influenza virus. One, cell membrane-associated cleaved NP (C-NP), is heterogeneous in size and during analysis in PAGE is localized in the 53 kDa and less zone. Its formation depends on the species appurtenance of the infective virus and occurs only in viruses with a low efficacy of NP oligomerization.

[The procedure for the surgical treatment of combined arteriovenous malformations and arterial aneurysms of the brain].

To choose the optimal surgical treatment, the follow-ups of 25 patients with arteriovenous malformations (AVMs) concurrent with arterial aneurysms who had been surgically treated were considered. Twenty four patients experienced spontaneous subarachnoidal hemorrhage, 16 of them were repeated and multiple. The accurate diagnosis of the source of bleeding was associated with objective difficulties.