Role of Russia in peaceful settlement of the conflict of North and South Korea: event analysis

This study analyzes the conflict between North Korea and South Korea. The Russian Federation has played an important role in the peaceful settlement of this conflict, which has an impact on the formation of the appearance of Russia in the international arena. The theoretical basis of the study was the theory of images, communication and international conflicts. Using the eventanalysis method, an event-based picture of the conflict was built, comparative assessments were made, conflicting parties, indirect participants and intermediaries were identified. An analysis of the current situation is given, groups of interests and the role of Russia in the peaceful settlement of this conflict are identified.Este estudio analiza el conflicto entre Corea del Norte y Corea del Sur. La Federación de Rusia ha desempeñado un papel importante en la solución pacífica de este conflicto, que tiene un impacto en la formación de la aparición de Rusia en la arena internacional. La base teórica del estudio fue la teoría de las imágenes, la comunicación y los conflictos internacionales. Utilizando el método de análisis de eventos, se construyó una imagen del conflicto basada en eventos, se realizaron evaluaciones comparativas, se identificaron las partes en conflicto, los participantes indirectos y los intermediarios. Se presenta un análisis de la situación actual, se identifican los grupos de intereses y el papel de Rusia en la solución pacífica de este conflicto.Este estudo analisa o conflito entre a Coréia do Norte e a Coréia do Sul. A Federação Russa tem desempenhado um papel importante na solução pacífica deste conflito, que tem um impacto sobre a formação da aparição da Rússia na arena internacional. A base teórica do estudo foi a teoria das imagens, comunicação e conflitos internacionais. Usando o método de análise de eventos, uma imagem baseada em eventos do conflito foi construída, avaliações comparativas foram feitas, partes conflitantes, participantes indiretos e intermediários foram identificados. Uma análise da situação atual é dada, grupos de interesses e o papel da Rússia na solução pacífica deste conflito são identificados

Biosynthesis and Properties of PHA Containing Monomers 3-Hydroxy-4-Methylvalerate

Исследована способность природного штамма Cupriavidus eutrophus B10646 синтезировать сополимеры, содержащие 3-гидрокси-4-метилвалерат (3Г4МВ) [П(3ГБ/3ГВ/3Г4МВ)]. Показана возможность синтеза трехкомпонентных сополимеров, содержащих мономеры 3ГБ, 3ГВ и мономеры 3Г4МВ при использовании глюкозы или масляной кислоты и субстрата-предшественника. Синтезировано семейство сополимеров с различным соотношением мономеров и содержанием 3Г4МВ максимально до 7,7 мол. %. Показано существенное снижение степени кристалличности при увеличении содержания мономеров 3ГВ и 3Г4МВ на фоне изменения термического поведения сополимеров и падения величины молекулярной массыThe ability of wild-type strain Cupriavidus eutrophus B10646 to synthesize copolymers containing 3-hydroxy-4-methylvalerate (3H4MV) [P(3HB/3HV/3H4MV)] was studied. The possibility of synthesis of terpolymers containing 3HB, 3HV and 3H4MV monomers using glucose, or butyric acid and co-substrate was shown. A family of copolymers with different content of 3H4MV monomer was synthesized. The highest content of 3H4MV was 7.7 mol. %. Increase of 3HV and 3H4MV content in copolymers caused the reduction of crystallinity degree and of molecular weight, and changes of thermal characteristics of copolymer

Dynamics of Switching Waves in a Nanofluid in a Light Field

The dynamics of the concentration of nanofluids placed in a light field with a Gaussian intensity profile is studied theoretically. The investigation is based on the analytical and numerical solutions of the system of linearized heat conduction and convectiondiffusion equations. The convection-diffusion equation contains terms that correspond both to the Soret effect and to the transfer of nanoparticles, caused by the action of a light field on them (electrostriction). The dependence of the coefficient of thermal conductivity of the medium on the concentration is taken into account. It is shown that under these conditions single travelling waves appear in the medium, the velocity of which depends not only on the thermal physical parameters of the medium, but also on the polarization of the particles. Conditions under which the stratification of the medium is possible are found

Effectiveness of signal classification using chernoff and kailath boundary conditions

The probabilities calculation of correct and incorrect surface changes recognition observed by radars placed on satellites is an actual task. In the paper, analytical expressions for calculating the efficiency of classification based on the Chernoff and Kailath boundary ratios, are obtained. The expressions are illustrated by a number of practically useful examples of detecting and recognizing the changes in the radar image. © 2020 American Institute of Physics Inc.. All rights reserved

Effect of Drying Mode of Bacterial Biomass on the Effectiveness of Extraction and Physicochemical Properties of the Product (Polymer)

Проведено сравнительное исследование различных режимов высушивания биомассы бактерий Cupriavidus eutrophus В10646. Показано, что различные режимы оказывают влияние на выход конечного продукта (полимера) и его физико-химические свойства (молекулярно-массовые и температурные характеристики). Использование высоких температур приводит к деградации полимера и снижению его молекулярной массы. Применение сублимационной сушки позволяет получить рыхлую биомассу с довольно развитой поверхностью, что благоприятно сказывается на процессе экстракции и не приводит к изменению молекулярно-массовых характеристик полимераComparative study of different drying modes of bacterial biomass of Cupriavidus eutrophus В10646 was conducted. Different modes differently affect the yield of the product (polymer) and its physicochemical properties (molecular weight distribution and temperature characteristics). High temperatures caused the polymer degradation and decrease of its molecular weight. Using freeze drying allows to obtain friable biomass with an extended surface which is favorable for extraction process and to preserve the molecular weight characteristics of the polyme

Optical echo in photonic crystals

The dynamics of photonic wavepacket in the effective oscillator potential is studied. The oscillator potential is constructed on a base of one dimensional photonic crystal with a period of unit cell adiabatically varied in space. The structure has a locally equidistant discrete spectrum. This leads to an echo effect, i.e. the periodical reconstruction of the packet shape. The effect can be observed in a nonlinear response of the system. Numerical estimations for porous-silicon based structures are presented for femtosecond Ti:Sapphire laser pump.Comment: 4 page

Comprehensive analysis of draft genomes of two closely related pseudomonas syringae phylogroup 2b strains infecting mono- and dicotyledon host plants

Comparison of the prophage region in Pseudomonas syringae strain SM (A) with the corresponding regions in strains 1845 (B) and 2507 (C) using MAUVE software (Darling et al. 2010). (PNG 2118 kb

The problem of quality assessing for the methods of coherence maps calculation in InSAR remote sensing of the Earth data processing

Interferometric coherence is an important indicator of the quality of interferograms obtained by synthetic aperture interferometric radars (InSAR), because the areas with low coherence are not suitable for interferometric data processing. The coherence value is used as a parameter for adaptive phase noise suppression algorithms. It can also be used for surface classification tasks. The paper investigates the problem of the coherence estimate reducing under the influence of the topographic phase slope and considers ways to reduce the impact of the slope on the estimate value. The paper presents a comparative efficiency analysis of four methods for coherence maps calculation used for the phase noise suppression on the interferograms by a spectral adaptive filter in interferometric data processing for the Earth's remote sensing space radar ALOS PALSAR. © Published under licence by IOP Publishing Ltd