Main challenges and problems of digital transformation in conditions of technological sovereignty strengthening

Digital transformation is a process of mass introduction and use of digital technologies and innovations in business processes of enterprises resulting in increased production effiency and reduced costs. The article reveals main issues of digital transformation process in conditions of technological sovereignty strengthening. The purpose of the study is to identify main challenges and problems of digital transformation in conditions of technological sovereignty on the basis of statistical analysis techniques. Inthe process of research, such scientifi and practical methods as comparison, method of analysis and synthesis, and statistical data for monitoring main costs of enterprises for digital environment development have been used. Main challenges of digital transformation have been analyzed, and a number of problems and barriers to digital transformation identifid, such as the lack of necessary digital competencies, lack of digital strategy and appropriate personnel, and others that prevent digital processes from being fully realized within enterprises. Statistical data on gross domestic expenditures and expenditures of enterprises and households on digital economy development has also been analyzed. Statistical compilations and reports of the Higher School of Economics have been used in order to monitor and analyze relevant statistical data

Взаимосвязь маркеров эндотелиальной дисфункции при гнойном холангите у больных с хроническим гепатитом и без хронического гепатита на фоне обтурационной желтухи

Цель. Изучение взаимосвязи маркеров эндотелиальной дисфункции при гнойном холангите у больных с хроническим гепатитом и без хронического гепатита на фоне обтурационной желтухи, выявление его раннего перехода в цирроз печени и оптимизация тактики лечения в до- и послеоперационном периоде с оценкой показателей исследуемых лабораторных тестов. Материалы и методы. Исследование проведено в отношении 15 больных с гнойным холангитом, из них у 9 больных был хронический гепатит, у 6 больных хронического гепатита не было. Из 9 больных с хроническим гепатитом 4 больным противовирусную терапию не проводили, 5 - проводили. Результаты. Непосредственные результаты проведенного лечебно-диагностического исследования свидетельствуют о сходных проявлениях эндотелиальной дисфункции при гнойном холангите у больных с хроническим гепатитом и без хронического гепатита. Всем больным с гнойным холангитом выполняли декомпрессию желчных протоков, устраняли причины обтурации, проводили дезинтоксикационную терапию. По данным корреляционного анализа показателей функционального состояния эндотелия у больных с хроническим гепатитом, получавших противовирусную терапию, улучшение отметили на 10-е сут, через 1 мес оно было более выраженным, чем у больных, не получавших противовирусную терапию. У 6 больных с гнойным холангитом без хронического гепатита своевременное хирургическое, дезинтоксикационное лечение совместно с озонотерапией привело к улучшению показателей функционального состояния эндотелия на 10-е сут, через 1 мес они приблизились к норме. Выводы. Своевременное выявление эндотелиальной дисфункции при гнойном холангите у больных с хроническим гепатитом и без хронического гепатита способствует раннему прогнозированию его перехода в стадию цирроза печени и правильному выбору тактики лечения в до- и послеоперационном периоде. Подытожив полученные данные, можно сделать вывод о том, что при гнойном холангите у больных с хроническим гепатитом целесообразно проведение противовирусной терапии до и после операции

The comparison of methods for anisotropic flow measurements with the MPD Experiment at NICA

The anisotropic collective flow is one of the key observables to study the properties of dense matter created in heavy-ion collisions. The performance of Multi-Purpose Detector (MPD) at NICA collider for directed and elliptic flow measurements is studied with Monte-Carlo simulations of heavy-ion collisions at energies $\sqrt{s_{NN}}$ = 4 - 11 GeV.Comment: 10 pages, 8 figures, to be published in the Proceedings of the Conference "RFBR Grants for NICA" (Dubna, 20-23 October 2020), Journal Physics of Elementary Particles and Atomic Nucle

Possibility of the use of herbal medicines in steroidogenesis in hypogonadal men

Multi-drug Testogenon® contains vitamins and biologically active substances, which are cofactor binding element in biochemical reactions steroidogenesis in males. Harmlessness and pharmacological effectiveness of the drug was confirmed in experimental studies. In the context of micronutrient vitamin deficiency use of the drug Testogenon® in the complex therapy pathogenetically substantiated and clinically justified

Stent-in-Stent Endovascular Correction in Right Internal Carotid Artery Restenosis: a Clinical Case

Background. Carotid artery restenosis is a rare complication of carotid stenting. The Carotid Revascularization Endarterectomy versus Stenting Trial (CREST) reveals an in-stent restenosis rate of 0–6 %, a fairly low value given an extensive study sampling of patients. Restenosis still lacks an adequate explanation in endovascular carotid surgery. Intravascular ultrasound visualisation, drug-coated balloons, stent reimplantation or reconstructive surgery have actively been used since relatively recently to tackle restenosis. Drug-coated balloons may fail in certain cases due to hampered restenosis angioplasty in a markedly rigid neointimal hyperplasia. Surgical reconstruction also possessed drawbacks, mostly due to obstacles in the stent removal and the procedure infeasibility in high-risk surgical patients.Materials and methods. The article describes a clinical case of stent-in-stent restenosis correction with drug-coated balloon-expandable re-stenting of right internal carotid artery and a long-term prognosis estimation with optical coherence tomography.Results and discussions. This tactic was adopted due to haemodynamically and clinically significant internal carotid artery restenosis, the patient’s denial of carotid endarterectomy and insufficiently effective balloon angioplasty. The choice of the correction technique was conclusive basing on a negative stent deformation testing that showed the lack of deforming stress factors at internal carotid artery restenosis. Intravascular imaging greatly enhances our ability to understand and assess endovascular processes.Conclusion. We consider clinically significant restenoses in previously stented carotid arteries as requiring further research effort, with the clinical case presented describing an individual solution

The genetic history of admixture across inner Eurasia

This is the author accepted manuscript. The final version is available from Nature Research via the DOI in this record.Data Availability. Genome-wide sequence data of two Botai individuals (BAM format) are available at the European Nucleotide Archive under the accession number PRJEB31152 (ERP113669). Eigenstrat format array genotype data of 763 present-day individuals and 1240K pulldown genotype data of two ancient Botai individuals are available at the Edmond data repository of the Max Planck Society (https://edmond.mpdl.mpg.de/imeji/collection/Aoh9c69DscnxSNjm?q=).The indigenous populations of inner Eurasia, a huge geographic region covering the central Eurasian steppe and the northern Eurasian taiga and tundra, harbor tremendous diversity in their genes, cultures and languages. In this study, we report novel genome-wide data for 763 individuals from Armenia, Georgia, Kazakhstan, Moldova, Mongolia, Russia, Tajikistan, Ukraine, and Uzbekistan. We furthermore report additional damage-reduced genome-wide data of two previously published individuals from the Eneolithic Botai culture in Kazakhstan (~5,400 BP). We find that present-day inner Eurasian populations are structured into three distinct admixture clines stretching between various western and eastern Eurasian ancestries, mirroring geography. The Botai and more recent ancient genomes from Siberia show a decrease in contribution from so-called “ancient North Eurasian” ancestry over time, detectable only in the northern-most “forest-tundra” cline. The intermediate “steppe-forest” cline descends from the Late Bronze Age steppe ancestries, while the “southern steppe” cline further to the South shows a strong West/South Asian influence. Ancient genomes suggest a northward spread of the southern steppe cline in Central Asia during the first millennium BC. Finally, the genetic structure of Caucasus populations highlights a role of the Caucasus Mountains as a barrier to gene flow and suggests a post-Neolithic gene flow into North Caucasus populations from the steppe.Max Planck SocietyEuropean Research Council (ERC)Russian Foundation for Basic Research (RFBR)Russian Scientific FundNational Science FoundationU.S. National Institutes of HealthAllen Discovery CenterUniversity of OstravaCzech Ministry of EducationXiamen UniversityFundamental Research Funds for the Central UniversitiesMES R

nnovative Seasonal Migrations and Subsistence System of the Mobile Pastoralists of the Desert-Steppe Zone of Eurasia:role of social groups

The study of the economic system of the earliest nomads which inhabited the Eurasian desert-steppe belt in 5000-2000 is a relevant task of contemporary studies. The data on the organization of living space and the role of social groups of early prehistoric pastoralists in the exploitation of open steppe resources are scarce. The paper presents a new methodological approach to searching camps of the earliest pastoralists. The application of this approach enabled the archaeologists to discover numerous seasonal camps in the Sal-Manych Ridge located in the western part of the Eurasian steppes, including Eneolithic camps dated to 4200-3600 BC. The study of the occupation layers at the sites, evaluation of the productivity of pasture systems made it possible to categorize such sites as short-term seasonal camps occupied by pastoralists, evaluate the role of social groups in the organization of innovative seasonal migrations and reconstruct their subsistence system. The camps emerged as a result of developing pastoral economic strategy in the Lower Don region and the abutting areas reflecting the role of special social groups of pastoralists who managed to organize seasonal moves and address the issue of exploiting pastures located beyond the permanently occupied area

ЧРЕСКОЖНАЯ ЭНДОСКОПИЧЕСКАЯ ЭЛЕКТРОРЕЗЕКЦИЯ ОПУХОЛЕЙ ЛОХАНКИ

The paper gives the results of percutaneous electroresection of the renal pelvic wall with a tumor in 4 patients. The operation has been made for absolute indications: 3 patients had a single kidney and the fourth patient had a single functioning left kidney (the right pelvic dystopic kidney failed to function). In all the patients, the primary symptom of the disease was macrohematuria, the examination for which revealed a renal pelvic tumor measuring 1.2 to 2.5 cm in size. There were no complications after percutaneous electroresection of the renal pelvic wall with a tumor. Intrarenal BCG therapy was performed in the postoperative period. Percutaneous electroresection is indicated for tumors of the renal pelvis and the upper third of the ureter of the single kidney.В статье приведены результаты чрескожной электрорезекции стенки лоханки с опухолью, выполненной у 4 пациентов. Операция была проведена по абсолютным показаниям: трое больных имели единственную почку, а четвертый – единственно функционирующую левую почку (правая тазоводистопированная почка не функционировала). Первичным симптомом заболевания у всех пациентов являлось наличие макрогематурии, при обследовании по поводу которой была выявлена опухоль лоханки размерами от 1,2 до 2,5 см. Осложнений после осуществления перкутанной электрорезекции стенки лоханки с опухолью не наблюдали. В послеоперационном периоде проведена интраренальная БЦЖ-терапия. При опухолях лоханки и верхней трети мочеточника единственной почки показана их перкутанная электрорезекция