Marketing of Ukrainian higher educational institutions representation based on modeling of Webometrics Ranking

The objective of the article is constructing of the two-factor model on the basis of the statistical material of the Webometric Rating of Universities, which analytically describes the status of Ukrainian higher educational institutions in terms of Webometrics indicators, provides an opportunity for its quantitative and qualitative analysis and forecasting of development trends of market educational services and marketing research in this area. The statistical analysis of the data of the Webometric Rating of Universities was conducted using the professional statistical information processing program STATGRAPHICS Centurion XV.I. Analytical relations are obtained using the Pade approximation technique. Mathematical editor Maple has been used to visualize the results of research and illustrate a qualitative picture of the rating of Ukrainian universities in the Internet space using the Webometric Indicators system. A two-factor model of the state and forecast of academic representation of Ukrainian universities according to Webometric rating is constructed. Using the proposed model, an analytical expression is obtained that allows for quantitative and qualitative assessments of the world ranking of higher educational institutions of Ukraine in the Web-indicators system Webometrix in order to increase their academic presence on the Internet, to strengthen the international authority and raise the national science school as a whole for a qualitatively new degree of development. The scientific novelty of the work is in the inclusion in the model of the time factor, the availability of which makes it possible, firstly, to extend the statistical material used in time and, secondly, to predict the trends and prospects of presentation in the Internet space of Ukrainian universities as advanced research centers. The main results of the work can be useful as a methodological material during the educational process in higher educational institutions, in the training and improvement of the skills of management personnel, in developing programs for reforming the educational process in higher education in order to bring it closer to European requirements and achieve the level of the best world universities. The presented methodology and data analysis algorithm can be generalized to evaluate rating systems of other nature: when evaluating students' educational and community work, financial analysis, in particular, to assess the probability of default of non-lending organizations, to determine the reliability of commercial banks, to conduct sociological tests, and surveys, medical and biological research and other areas of public administration

Planktonic diatom flora of large rift lakes in continental Asia during the past 1 Ma: comparison of biostratigraphic records from Lake Baikal and Lake Hovsgol

International audienceHere we review the large-scale changes in the dominant planktonic diatom flora from two largest lakes of the Baikal Rift Zone in continental interior Asia during the past 1Ma. Based on prior detailed biostratigraphic work on the drill cores of the Lake Baikal and Lake Hovsgol Drilling Projects we highlight the remarkable features of the Baikal BDP-96 holostratotype section, which remains the most complete, detailed and representative record of regional changes in planktonic diatom flora in continental Asia. For two neighboring rift basins, we demonstrate both (a) the substantial overall differences in the type of diatom paleo-floras during the past 1-Ma history of these lake systems, as well as (b) the possibility of linking the records biostratigraphically in several intervals of the middle Pleistocene. Despite long parallel histories of these neighboring lake systems and high levels of endemism observed in their diatom flora today (Lake Baikal in particular), it appears that the present-day species composition of diatom floras in these basins has formed relatively recently during late Pleistocene, some 50-60 kyr BP. For the current Holocene interglacial we highlight the differences in both diatom abundance and species composition changes; even though these two rift lakes are located within the same watershed, diatom floras appear to have responded differently to past changes in climate and environment in the region. Lacustrine environments in these two rift basins appear to have been more similar during the middle Pleistocene as suggested by the morphological similarities of the dominant planktonic species present in the microfossil record

Justification and microbiota compositions development for the fermentation of raw meat

In the production of fermented meat products, microorganisms of various taxonomic groups play an extremely important role, namely in the formation of specific taste, aroma, colour, and consistency. Both fermentative and spontaneous microflora take part in the components' transformation of meat raw materials during the maturation of such products, and the course of this process depends on the metabolic activity of the strains. In accordance, this article's purpose is to select microbiota compositions (lactic acid bacteria and coagulase-negative cocci) for the fermentation of meat raw materials. So, as a result of the research, 4 compositions were selected, two of which are lactic acid bacteria with micrococci (No. 2, 3) and two lactic acid bacteria with staphylococci (No. 1, 6).  They were characterized by the high productivity of each of the components of the leavening composition, in particular, it was established that the number of MKB increased – by 4.3-6.5 times, and micrococci and staphylococci – by 7.7-28.6 times, respectively. For these compositions, mutual stimulation of the components was observed, contributing to the active microorganisms' development and their biochemical activity. Fermentation compositions No. 1, 6, 4, and 6 had the highest nitrite-reducing activity, and a high level of proteolysis characterized compositions No. 1, 2, 3, and 4.  According to the results of determining the antagonistic activity against opportunistic and pathogenic microorganisms, it was established that the investigated compositions exhibit antagonistic activity against both gram-negative and gram-positive microorganisms

Design and photophysical investigation of dipyrromethenates coordinated with the boron(III), zinc(II) and cadmium(II) as optical elements

Alkyl-halogen-dipyrromethene (Dpm) ligands coordinated with boron(III), zinc(II), and cadmium(II) were studied experimentally and theoretically to elucidate and compare influence of the coordination centers and halogen substituents (“heavy” atom effect) on observable photophysical properties. Novel and recently published experimental data were summarized and analyzed using quantum-mechanical calculations which revealed specific of the electronic structures and photo-induced dissipations in the molecular complexes. Halogenation of the Dpm difluoroborates (BODIPY) increases the intersystem spin crossing (ISC) and the triplet harvest whereas halogen atoms play no crucial role in fluorescence quenching of the systems with Zn(II) and Cd(II) complexing agents. Low fluorescence intensities of double Dpm moieties coordinated with the tran-sition metal ions are provided by radiationless internal conversion suppressing photoemission with following ISC which is intensified in presence of halogens. BODIPY fluorescence undergoes direct ISC competition and quenching intensity depend on the kind and the number of halogens

Abstracts of the First Eurasian Conference; The Coronavirus Pandemic and Critical ICT Infrastructure

While the world is struggling with COVID-19, the ICT industry seeks to play a constructive role in combating the spread of the virus. This book contains the abstracts of the papers presented at The First Eurasian Conference; The Coronavirus Pandemic and Critical ICT Infrastructure (PANDEMIC-ICT-2020) organized by AMIR Technical Services LLC, Tbilisi, Georgia held on November 28-30, 2020. Conference Title: The Coronavirus Pandemic and Critical ICT InfrastructureConference Acronym: PANDEMIC-ICT-2020Conference Date: 28-30 November 2020Conference Location: Online (Virtual Mode)Conference Organizer: AMIR Technical Services LLC, Tbilisi, Georgi