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

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

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

Клинический случай течения норвежской чесотки у пациента с ВИЧ-инфекцией

Norwegian scabies is a rare variant of scabies, which has clinical differences from the classical variant, which can cause diagnostic errors. Risk factors for developing the disease are various immunodeficiency states (HIV infection, malignant neoplasms, leprosy). A clinical case of the development of Norwegian scabies in a 22-year-old patient with HIV-infection stage 4B, with a level of CD4-lymphocytes in the blood of 8 cells/µl, is presented. The patient was hospitalized with complaints of weakness, skin rashes, itching and fever up to 40°C. On examination, there was dryness of the skin with erythematous areas on the arms, legs, and torso, as well as massive dirty-gray crusts on the skin of the scalp, torso, palms, elbows, dorsal surface of the feet. Purulent crusts were visualized on the elbows (Ardy’s symptom).Treatment of scabies was carried out by treating the skin with a solution of benzyl benzoate. Against the background of the therapy, there was a positive trend in the form of the disappearance of skin itching, unpleasant odor, and complete disappearance of crusts on the 7th day of treatment.Норвежская чесотка – редко встречающийся вариант чесотки, имеющий клинические отличия от классического представляющий поэтому диагностические сложности. Факторами риска развития норвежской чесотки являются различные иммунодефицитные состояния (ВИЧ-инфекция, злокачественные новообразования, лепра). Представлен клинический случай развития норвежской чесотки у пациента 22 лет с ВИЧ-инфекцией со стадией 4В, с уровнем CD4-лимфоцитов в крови 8 клеток/мкл. Пациент госпитализирован с жалобами на слабость, кожные высыпания, зуд и повышение температуры тела до 40°С. При осмотре отмечались сухость кожных покровов с эритематозными участками на руках, ногах, туловище, а также массивные корки грязно-серого цвета на коже волосистой части головы, туловища, ладоней, локтей, тыльной поверхности стоп. На локтях визуализировались гнойные корочки (симптом Арди).Лечение чесотки проводилось обработкой пораженных участков кожи раствором бензилбензоата. На фоне проводимой терапии отмечалась положительная динамика в виде исчезновения кожного зуда, неприятного запаха, полного отпадения корочек на 7-й день лечения

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

The BM@N spectrometer at the NICA accelerator complex

BM@N (Baryonic Matter at Nuclotron) is the first experiment operating and taking data at the Nuclotron/NICA ion-accelerating complex.The aim of the BM@N experiment is to study interactions of relativistic heavy-ion beams with fixed targets. We present a technical description of the BM@N spectrometer including all its subsystems.Comment: 34 pages, 47 figures, 6 table

Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015

SummaryBackground The Global Burden of Diseases, Injuries, and Risk Factors Study 2015 provides an up-to-date synthesis of the evidence for risk factor exposure and the attributable burden of disease. By providing national and subnational assessments spanning the past 25 years, this study can inform debates on the importance of addressing risks in context. Methods We used the comparative risk assessment framework developed for previous iterations of the Global Burden of Disease Study to estimate attributable deaths, disability-adjusted life-years (DALYs), and trends in exposure by age group, sex, year, and geography for 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks from 1990 to 2015. This study included 388 risk-outcome pairs that met World Cancer Research Fund-defined criteria for convincing or probable evidence. We extracted relative risk and exposure estimates from randomised controlled trials, cohorts, pooled cohorts, household surveys, census data, satellite data, and other sources. We used statistical models to pool data, adjust for bias, and incorporate covariates. We developed a metric that allows comparisons of exposure across risk factors—the summary exposure value. Using the counterfactual scenario of theoretical minimum risk level, we estimated the portion of deaths and DALYs that could be attributed to a given risk. We decomposed trends in attributable burden into contributions from population growth, population age structure, risk exposure, and risk-deleted cause-specific DALY rates. We characterised risk exposure in relation to a Socio-demographic Index (SDI). Findings Between 1990 and 2015, global exposure to unsafe sanitation, household air pollution, childhood underweight, childhood stunting, and smoking each decreased by more than 25%. Global exposure for several occupational risks, high body-mass index (BMI), and drug use increased by more than 25% over the same period. All risks jointly evaluated in 2015 accounted for 57·8% (95% CI 56·6–58·8) of global deaths and 41·2% (39·8–42·8) of DALYs. In 2015, the ten largest contributors to global DALYs among Level 3 risks were high systolic blood pressure (211·8 million [192·7 million to 231·1 million] global DALYs), smoking (148·6 million [134·2 million to 163·1 million]), high fasting plasma glucose (143·1 million [125·1 million to 163·5 million]), high BMI (120·1 million [83·8 million to 158·4 million]), childhood undernutrition (113·3 million [103·9 million to 123·4 million]), ambient particulate matter (103·1 million [90·8 million to 115·1 million]), high total cholesterol (88·7 million [74·6 million to 105·7 million]), household air pollution (85·6 million [66·7 million to 106·1 million]), alcohol use (85·0 million [77·2 million to 93·0 million]), and diets high in sodium (83·0 million [49·3 million to 127·5 million]). From 1990 to 2015, attributable DALYs declined for micronutrient deficiencies, childhood undernutrition, unsafe sanitation and water, and household air pollution; reductions in risk-deleted DALY rates rather than reductions in exposure drove these declines. Rising exposure contributed to notable increases in attributable DALYs from high BMI, high fasting plasma glucose, occupational carcinogens, and drug use. Environmental risks and childhood undernutrition declined steadily with SDI; low physical activity, high BMI, and high fasting plasma glucose increased with SDI. In 119 countries, metabolic risks, such as high BMI and fasting plasma glucose, contributed the most attributable DALYs in 2015. Regionally, smoking still ranked among the leading five risk factors for attributable DALYs in 109 countries; childhood underweight and unsafe sex remained primary drivers of early death and disability in much of sub-Saharan Africa. Interpretation Declines in some key environmental risks have contributed to declines in critical infectious diseases. Some risks appear to be invariant to SDI. Increasing risks, including high BMI, high fasting plasma glucose, drug use, and some occupational exposures, contribute to rising burden from some conditions, but also provide opportunities for intervention. Some highly preventable risks, such as smoking, remain major causes of attributable DALYs, even as exposure is declining. Public policy makers need to pay attention to the risks that are increasingly major contributors to global burden. Funding Bill & Melinda Gates Foundation

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