Schepin A.S., Peshkov S.A., Peshkova T.V.
LIFETIME SINGLET OXYGEN IN THE COLLISIONAL COMPLEX O₂-CO₂ ^{[№ 3 ' 2016]}
One of the most promising emerging in our time method to eliminate malignant tumors is photodynamic therapy. We study the mechanism that explains the increase in the lifetime of singlet oxygen in living organisms when administered by photodynamic therapy using a computer simulation. The methods of self-consistent field (SCF/ROHF) and density functional theory (DFT/B3LYP) held conformational analysis to determine the geometrical characteristics of the oxygen complexes with carbon dioxide and identify among them the most stable structure with minimum energy. Multi-configurationally method CASSCF (14, 11) designed the electronic terms of the complex ^1,3[O₂-CO₂]. The method of spin-orbit interaction (SOC) calculated moments of forbidden transitions a¹Δ_g — X³∑_g^–, b¹∑_g⁺ — a¹Δ_g, Einstein coefficients (transition probabilities), as well as the lifetime of singlet oxygen (a¹Δ_g, b¹∑_g⁺) by complexing with oxygen molecules of carbon dioxide molecule. Identify the most stable structure of the complex [O₂-CO₂] — II, having chiseled C_2v group symmetry. It was revealed that the ground and the excited state of oxygen in complex ^1,3[O₂-CO₂] O₂(X³∑_g^– + CO₂(A¹∑_g⁺), O₂(a¹Δ_g; a'¹Δ'_g) + CO₂(A¹∑_g⁺), O₂(b¹∑_g⁺) + CO₂(A¹∑_g⁺) are low stability, as they have low energy dissociation. The possibility of manifestation forbidden transitions induced moment's a¹Δ_g — X³∑_g^–, b¹∑_g⁺ — a¹Δ_g in the O₂ molecule by the action of carbon dioxide a collision molecules that virtually do not appear in a separate O₂ molecule. The calculated value of the lifetime of singlet oxygen in collision complexes ^1,3[O₂-CO₂] describes the possibility of the formation of complexes of oxygen with carbon dioxide, and other low molecular weight compounds having a membrane transport in the tissues of a living organism in their low-intensity laser irradiation, whereby, increases the lifetime of singlet oxygen O₂(a¹Δ_g, b¹∑_g⁺).

Kobzev G.I., Schepin A.S., Peshkov S.A.
STRUCTURAL AND SPECTRAL PROPERTIES OF THE COMPLEX VALINE IN NEUTRAL AND IONIC FORM WITH CATIONS ZN²⁺, CD²⁺ (QUANTUM CHEMICAL STUDY) ^{[№ 9 ' 2015]}
Heavy metals are involved in the diverse chemical, physico-chemical and biological processes. They can act as toxicants, i. e. substances, which are large concentrations can lead to disorders or disorders of various vital processes of the body. Studying the mechanisms of accumulation and excretion of heavy metals in living cells must be based on a study of the problems with the metal binding amino acids as a component of proteins. Given that the ability of metal ions to interact with the amino acids depends on the presence in their structure of certain atoms and functional groups, this reaction is characterized by the formation of metal complexes of varying strength. Density functional method (DFT), in the framework of self-consistent field (SCF) approximation B3LYP/DZP and taking into account the amendments to the energy perturbation theory MP2 (Moller-Plesset) calculated the geometric parameters of the equilibrium states of complex valine in the neutral and ionic forms cations zinc (II) and cadmium (II) in the gas phase. The influence conformation valine complexes with metals, zinc (II) and cadmium (II), as well as the ionic and neutral forms on their stability. The energies of bond dissociation Val-Me, Me = Zn²⁺, Cd²⁺. A number of valine stability of complexes with cations of zinc and cadmium. For cationic complexes with the anionic form of valine [Val^–-Me²⁺]¹⁺ calculated IR spectra revealed that changes the fundamental stretching and deformation vibration frequencies. The regularities of the fringe shift in the IR spectra of the complexes [Val^–-Zn²⁺]¹⁺, [Val^–-Cd²⁺]¹⁺ in complex combination oscillations.

Peshkov V.S.
THE REFORMS OF URAL COSSACK HOST PUBLIC ADMINISTRATION AND LOCAL SELF GOVERNMENT IN 1917 ^{[№ 11 ' 2014]}
The article analyzes the development and implementation of the guiding patterns and legal basis for various reform models for the Ural Cossack local public administration and self-government in 1917. In the Ural Cossack host a different approaches were realized from the uttermost transformation of the traditional cossack self-government system toward the modern type of the territorial autonomy, and, finally, to an independent state.

Peshkov S.А., Sizentsov A.N.
BIOACCUMULATION OF HEAVY METALS BY MICROORGANISMS COMPRISING PROBIOTIC PREPARATIONS IN VITRO ^{[№ 10 ' 2013]}
This article presents the results of the study the bioaccumulation of heavy metals by probiotic strains of micro-organisms belonging to different genera. The data indicate a high level of sorption of lead, zinc and iron from the growth media.

Sizentsov A.N., Nugamanova E.M., Peshkov S.A.
IMPACT OF HEAVY METALS ON THE GROWTH OF PROBIOTIC STRAINS E. COLI M-17, E. FAECIUM, L. ACIDOPHILUS, L. BULGARICUS LB-51 AND BACTERIA OF THE GENUS BACILLUS IN THE CONDITIONS IN VITRO ^{[№ 12 ' 2011]}
In this paper was examined the stability of different probiotic strains of microorganisms to heavy metals in the conditions in vitro. The effect of heavy metals on the growth phase of microorganisms.