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The purpose of the article is to single out the informational materials of the selection of publications in the regional online media and news websites dedicated to the problems of national and cultural and ethnic religious self-determination of the peoples of the North Caucasus, their classification and analysis. The researches of publications on these topics (including their content analysis with the identification of relevant lexical items) are a significant trend of modern Russian politological research. The analysis of the array of information on the problem of national and cultural and ethnic religious self-determination made it possible to identify the focal points presented on the media scene of the North-Caucasian Federal District and the Southern Federal District: the language discourse of national cultural self-determination; historical memory and issues of rehabilitation of victimized peoples, conflict projections of the “Circassian issue”, glorification of mythological subjects, rituals, religious practices and ethnic activists. Such a specification of the subjects, the emphasis on certain newsworthy information allows us to talk about a new round of the process of national and cultural self-determination, determined both by domestic and foreign policy issues. The result of the work can be presented in the form of the following recommendations related to information support of identified issues in the electronic environment: taking the pressing problems out of the realm of politics; prevention of politicization of the land issue, rehabilitation issue, etc.; avoiding purposeful ethnicization, ethnic glorification of problems; avoiding the understatement of problem points; involvement of respected religious and public figures as the experts on the problem to comment on the situation.

Исследование выполнено при финансовой поддержке РГНФ в рамках проекта проведения научных исследований «Крым в годы Великой Отечественной войны», проект № 15-31-10158, а(ц).

Rheological properties of an original pharmaceutical composition of a nanostructured (ultradisperse) silver system stabilized by arabinogalactan were studied by dynamic rheology and compared with the official silver- containing preparation dermazin. Significant differences were observed in the rheological characteristics of the soft dosage forms that affected their adherence to skin, the bioavailability of the active ingredients, and the production technology. It was established that the original pharmaceutical composition of the ultradisperse silver system stabilized by arabinogalactan was a structured liquid with clearly pronounced non-Newtonian flow characteristics that exhibited viscoplastic and thixotropic properties. Its rheological parameters corresponded well to requirements for the technical rheological optimum for extrusion of hydrophilic gels.

The quality assurance system of soft medicinal preparations (SMPs) is based on standardization of the rheological parameters of compositions used in clinical practice. These rheological parameters influence the quality of pharmacological action. Biopharmaceutical studies demonstrate that the rheological properties of SMPs are closely correlated with the intensity of the drug release and absorption. The structural and mechanical properties of an adsorptive vaginal gel based on styrene copolymer with maleic anhydride have been studied. The active substance was the adsorbent “Enterosgel.” Rheological data were used to determine the optimum combination of active substance and structural component concentrations in preparing the adsorptive gel composition.

Rheological properties of adsorption vaginal gels based on Carbopol were examined and compared with those of Metrogyl (USA). The formulation was optimized by the method of dynamic rheology, and the rheological extrusion optimum of the vaginal preparation was determined. The activation parameters of the formulations were calculated.

In the article the analysis of signaling and communication facilities of Ukrainian railway transport is presented;the labour productivity and its change due to the influence of different factors are considered.

The reaction of chitosan with hydrogen peroxide in homogeneous medium and the influence of iron(II) sulfate, copper(II) chloride, and disodium ethylenediaminetetraacetate on oxidative degradation of chitosan were studied by the rheology method.

Eine Systematisierung der Literaturangaben und experimentellen Ergebnisse zu den Umwandlungen des Vinylchlorids in Gegenwart saurer Agenzien wurde durchgefuhrt. Je nach den Reaktionsbedingungen erfolgt Komplexbildung (uber die CC-Bindung order mit Beteiligung von Cl), Bildung der 1:1-Addukte mit Offnung der CC-Bindung sowie Zerfall des Vinylchlorids zu HCl und Acetylen. Mit SbCl5 erfolgt entweder 1:1-Komplexbildung oder 1,2-Chlorierung des Vinylchlorids. Eine kationische Polymerisation des Vinylchlorids wurde nicht oder nur als Nebenprozes beobachtet. Literature data and experimental results on the reactions of vinyl chloride in presence of acid agents are reviewed. According to the reaction conditions the following transformations can be observed: formation of complexes (via the CC bond or with participation of the Cl atom), formation of 1:1 adducts with opening of the CC bond, and decay of vinyl chloride to HCl and acetylene. With SbCl5 the formation of a 1:1 complex or 1,2-chlorination of vinyl chloride is observed. Cationic polymerization of vinyl chloride was not observed or it takes place only as a side reaction.

Topics relating to spectroscopic applications of a new generation of metal vapour lasers are discussed. These lasers are distinguished by a high efficiency, compact size, air cooling, and user friendliness. Practical results are given of an investigation of the Raman scattering of light in gallium phosphide, silicon, graphite, and diamond films directly during their growth, and also of the kinetics of two-photon absorption and photoluminescence of aqueous solutions of porphyrin. The pulsed nature of the radiation in combination with good energy and temporal parameters of metal vapour lasers are opening up new avenues for spectroscopic investigations of various fast processes, particularly in the cases of weak signals and strong parasitic illumination. (lasers and amplifiers)

The thermal degradation of polyisobutylene and butyl rubber in presence of magnesium chloride is activated by chemically bound water as is confirmed by the experimental results and quantochemical calculations. A feature of the thermocatalytic degradation is the combination of the processes of initiation by the “law of chance” and the “law of end groups”.

The degradation of butyl rubber in presence of catalytic systems based on combinations of AlCl 3 with the chlorides of alkali and alkaline earth metals takes the form of a depolymerization reaction initiated randomly. Some kinetic parameters of the process are presented.