Evaluation of microstructure and conductivity of two-phase materials by the scanning spreading resistance microscopy (the case of shungite).

The determination of the content of the conducting phase and the assessment of conductivity by microscopic images are interesting for rapid and non-destructive analysis of the electrophysical properties of two-phase (conductor/dielectric) samples during the atomic force microscopy. In this paper we summarized results of the analysis of the conductivity maps of the shungite surface by the method of discretization by applying a square grid with subsequent binary digital processing. Microstructure and conductivity were evaluated by measuring the average length of continuous conductive circuits isolated on the grid.

[The effects of the microwaves on E. coli cells depend on oxygen concentration and static magnetic field].

The effects of non-thermal microwaves (MW), 10(-4) and 10(-10) W/cm(2), on conformation of nucleoids in E. coli cells were analyzed by the method of anomalous viscosity time dependence (AVTD). MW exposure was performed at different values of static magnetic field and concentration of oxygen, 8-90 microT, and 2.

[The peculiarities of the microwave in the frequency range of 51-52 GHz spectrum effects on E. coli cells].

The effects of microwaves on conformation of nucleoids in E. coli cells were studied by the method of anomalous viscosity time dependence (AVTD) at various frequencies in the range of 51-52 GHz and the power flux density of 100 microW/cm(2) . Linearly polarized microwaves resulted in significant effects within specific frequency windows of resonance type.

Cell-density dependent effects of low-dose ionizing radiation on E. coli cells.

The changes in genome conformational state (GCS) induced by low-dose ionizing radiation in E. coli cells were measured by the method of anomalous viscosity time dependence (AVTD) in cellular lysates. Effects of X-rays at doses 0.

Cell-to-cell communication in response of E. coli cells at different phases of growth to low-intensity microwaves.

Effects of millimeter waves (MMW) at the frequency of 51.755 GHz were studied in logarithmic and stationary E. coli cells at various cell densities.