Study of Posting Activities of Russian Users on Social Media

Content marketing on social media depends on trends in consumer behaviors. A changing focus and emphasis on audience activities on social media are a key optimization problem in social media marketing (SMM). A solution to this problem lies in a field of ongoing empirical studies of posting frequency. In the review of the literature, authors highlight the role of social media as a promising channel for a direct interaction of companies/brands with consumers. Based on theoretical generalizations, authors present a generation sequence of an SMM content strategy. The article also includes an analysis of posting activities of users from Russia on well-known social media. A cost-benefit analysis of posting activities rests upon some factors: socio-demographic characteristics of users, a content format, time and day of the week parameters, etc. Data come from such sources as aggregated statistics of social media and selective interviewing. An analysis of activities for users from Russia has shown that VKontakte is the most popular platform; Instagram is the second, while Facebook is the third. Odnoklassniki and Twitter are less preferred. VKontakte users respond best to short posts. On Facebook, entries with medium-sized texts have got the highest number of responds. On Instagram, long posts work better. The photo format is a leader in all of the social media. The video format has a middle position, while a text is the most inefficient type of content. There is strong differentiation in response time depending on a target audience. Findings have made it possible to present recommendations for optimization of content marketing

Citation of Mass Media Resources in Social Network

The role of social networks in the formation of collective behaviour and a sustainable point of view/position regarding the information events or facts is studied herein. The purpose of the study is to analyse the reaction of the users of popular social networks, expressed in quotations and responses to the messages of mass media resources. A statistical measure of interest in the media news is identified through unique messages from queries on the topic. The approach used is aimed at improving the scientific argumentation on the assumption of a direct relationship between these phenomena. The empirical evaluation is carried out according to the data obtained from the Russian segment of social networks. The trends in the distribution of media content in social media and social networks are revealed using structural and correlation analysis. It is determined that the publications in online media correlate directly with the activities of social networks and are caused by the release of one or another information event. The results of the study also convincingly point out that the importance of the media resources, expanding due to the integration of social networks, increases, while the classical model of online media (media edition as own website) is gradually losing popularity and audience

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

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

Coherence maps application for InSAR data accuracy improving

В работе представлен анализ методов применения карт когерентности для обработки интерферометрических пар изображений радиолокаторов с синтезированной апертурой (РСА). Экспериментально определены размеры окон усреднений, допустимых для решения практических задач. Представлен метод повышения точности цифровых моделей рельефа и карт подвижек рельефа, получаемых при интерферометрической съемке, основанный на маскировании карты когерентности. Показано повышение точности результата по сравнению с классической методикой.The paper presents the analysis of coherence maps application methods for the interferometric SAR images processing. The interferometric coherence is an important indicator of the reliability of the interferograms obtained by the interferometric synthetic aperture radar (InSAR), since the areas with low coherence values are unsuitable for processing the interferometric data. In addition, the coherence is used as a parameter of adaptive phase noise filters, and it can also be used for surface segmentation. The sizes of the averaging windows suitable for the solution of practical problems are experimentally determined. The method of accuracy increasing for the digital elevation maps and displacement maps obtained by InSAR systems based on masking the coherence map is presented. The DEM accuracy improvement in comparison with the classical estimation method is presented

β-Keto phosphonic esters - Communication 10. Diethyl 2-oxocyclopentylphosphonate

1. The reaction of 2-chlorocyclopentanone with triethyl phosphite leads to the formation of 1-cyclopenten-1-yl diethyl phosphate. 2. By the addition of phosphorus pentachloride to ethoxycyclopentene, and treatment of the intermediate complex with sulfur dioxide, we obtained 2-ethoxy-1-cyclopenten-1-ylphosphonic dichloride, which was converted into diethyl 2-ethoxy-1-cyclopenten-1-ylphosphonate. Hydrolysis of the ester gave diethyl 2-oxocyclopentylphosphonate. 3. Bromine titration of diethyl 2-oxocyclopentylphosphonate showed that it is enolized only to a slight extent (about 5%), The occurrence of enolization was confirmed by the ultraviolet spectra of the ester in hexane solution. © 1962 Consultants Bureau Enterprises, Inc

Reaction of Sb(III) halides with 1,2-dimethyl-4,5-di(mercaptomethyl)benzene

1. The reactions of SbBr3 and SbF3 with 1,2-dimethy1-4,5-di(mercaptomethyl)benzene gave 3-bromo- and 3-fluoro-7,8-dimethylbenzo[e]-2,4,3-dithiastibepine, respectively. 2. The major product of the reaction of SbF3 with 1,2-dimethy1-4,5-di(mercaptomethyl)-benzene is 3-fluoro-3,3′-spitobi(7,8-dimethylbenzo[e]-2,4,3-dithiastibepine). © 1988 Plenum Publishing Corporation

Phase noise suppression in interferometric radar data using goldstein noise filtration

The article is devoted the coherence maps utilization for the phase noise filtration using the Goldstein filter for interferometric synthesized aperture radar (InSAR) images. For the ALOS PALSAR data (FBS imaging mode), four coherence estimation techniques (classical, difference slope compensation, Fourier slope compensation, and «peak-Fourier») were researched as the Goldstein filter parameter. The filtered interferograms were compared with the reference ground control points reprojected into the radar coordinate system. It is shown that the coherence estimation method affects the quality of the phase noise suppression. © 2020 American Institute of Physics Inc.. All rights reserved.This work was supported by the Center of Excellence "Geoinformation technologies and geophysical data complex interpretation" of the Ural Federal University Program (Act 211 Government of the Russian Federation, contract N 02.A03.21.0006)

Reaction of dialkylphosphorous acids with 2,2-dimethyl-1,3-indandione

1. The reaction of 2,2-dimethyl-1,3-indandione with diethyl- and di-n-butylphosphorous acids in the presence of amines gave 2,2-dimethyl-3-hydroxyindan-1-one-3-diethylphosphonate and 2,2-dimethyl-3-hydroxyindan-1-one-3-di-n-butylphosphonate. 2. The phosphonate-phosphate isomerization of 2,2-dimethyl-3-hydroxyindan-1-one-3-diethylphosphonate to 2,2-dimethylindan-1-one-3-diethylphosphate was detected at room temperature in the presence of amines. © 1976 Plenum Publishing Corporation

Structure and properties of the products of the reactions of trialkylphosphites and dialkylphosphorous acids with ethylideneacetylacetone and ethylideneacetoacetic ester

1. Trialkylphosphites react with ethylideneacetylacetone and ethylideneacetoacetic ester under mild conditions (20-40°, dry nitrogen atmosphere) to form 2,2,2-trialkoxy-3,5-dimethyl-4-acetyl-1-oxa-2-phosphacyclopent-4-enes and 2,2,2-trialkoxy-3,5-dimethyl-4-carboethoxy-1-oxa-2-phosphacyclopent-4-enes, respectively. 2. The reaction of the phosphoranes with alcohol, acetic anhydride, and water results in cleavage of the phosphorane ring at the P-O bond. 3. Hydrolysis of the phosphoranes yields esters of l-methyl-2,2-diacetyl- and 1-methyl-2-acetyl-2-carboethoxyethylphosphonic acids. The keto-enol tautomerism of these compounds was studied by ultra-violet spsctroscopy. 4. Distillation of the phosphorane hydrolysis products resulted in the splitting out of alcohol and the formation of 2-oxo-2-alkoxy-3,5-dimethyl-4-acetyl-1-oxa-2-phosphacyclopent-4-enes and 2-oxo-2-alkoxy-3, 5-dimethyl-4-carboethoxy-l-oxa-2-phosphacyclopent-4-enes, respectively. These same esters were also obtained from the reaction of ethylideneacetylacetone and ethylideneacetoacetic ester with dialkylphosphorous acids. 5. The structures of all compounds synthesized were confirmed by infrared spectra. © 1968 Consultants Bureau