«Theorists» and «practicians» of population policy implementation: analysis of different approaches

В статье приводятся результаты экспертного опроса специалистов государственной и муниципальной службы (т.н. «практиков»), занимающихся непосредственной реализацией мер демографической политики на региональном уровне, а также рекомендации по повышению их квалификации в связи с выявленными противоречиями с мнениями ученых, экспертов и аналитиков как «теоретиков».This article presents the results of the expert survey of the state and municipal servants (so-called «practicians»), engaged in the immediate implementation of population policy measures at the regional level, as well as recommendations to improve their skills in connection with the identified contradictions with the point of view of scientists, experts and analysts as «theorists».Исследование выполнено при финансовой поддержке РГНФ в рамках проекта проведения научных исследований («Мотивация родительского труда, стратегия и тактика регулирования репродуктивных установок населения в Уральском регионе»), проект № 12-03-00073а

Associative field of a lingo-cultural type “lamer” in contemporary informational sphere

The characteristic feature of the existence of the type “lamer” in the internet sphere is that this image gave rise to many interpretations and is surrounded by a full of content field of associations (ex. Neznajka, Ivan the Fool). These associations encourage Internet users to literary creativity. It is stupidity of a lamer that is more often ridiculed, famous poems are used for this purpose. Sometimes we may come across different arguments in the Internet that justify the existence of this image and underline its importance.Главной особенностью бытования типажа ламера в интернет-пространстве является то, что этот образ стал источником многочисленных толкований и существует в насыщенном смыслами поле ассоциаций (например, Незнайка, Иван-дурак). Эти ассоциации стимулируют пользователей Интернета к литературному творчеству. В основном всячески обыгрывается глупость ламера, при этом используются нередко известные стихотворения. Иногда встречаются в Интернете суждения, оправдывающие этот образ, подчеркивающие необходимость его существования

Sensitivity Optimization and Experimental Study of the Long-Range Metal Detector Based on Chaotic Duffing Oscillator

Sensors based on chaotic oscillators have a simple design, combined with high sensitivity and energy efficiency. Among many developed schemes of such sensors, the promising one is based on the Duffing oscillator, which possesses a remarkable property of demonstrating chaotic oscillations only in the presence of a weak sine wave at the input. The main goal of this research was to evaluate the maximal sensitivity of a practically implemented metal detector based on the Duffing oscillator and compare its sensitivity with conventional sensors. To achieve high efficiency of the Duffing-based design, we proposed an algorithm which performs a bifurcation analysis of any chaotic system, classifies the oscillation modes and determines the system sensitivity to a change in different parameters. We apply the developed algorithm to improve the sensitivity of the electronic circuit implementing the Duffing oscillator, serving as a key part of a three-coil metal detector. We show that the developed design allows detecting the presence of metal objects near the coils more reliably than the conventional signal analysis techniques, and the developed detector is capable of sensing a large metal plate at distances up to 2.8 of the coil diameter, which can be considered a state-of-the-art result. © 2022 by the authors

MONOCYTE SUBSETS IN HEALTHY ADULTS AND SEPSIS PATIENTS

Monocytes play a key role in the development of immune response in bacterial infection, because of their phagocytic, antigen-presenting and secretory functions. There are three subpopulations of monocytes: “classical” CD14+CD16-, “intermediate” CD14+CD16+, and “nonclassical” CD14+dimCD16+. These monocyte subtypes have different phenotypes and functions. The ratio of appropriate subpopulations varies with development of the antibacterial response. The aim of the present research was to study phenotypes of the monocyte subpopulations in the patients with sepsis, and changes in the monocyte subpopulation ratio, depending on the presence of bacteria in circulating blood of the patients, as well as to estimate contribution of the monocyte subpopulations to the cytokine production. We observed 16 patients with sepsis (10 men and 6 women; mean age, 58±14 years, SOFA 9.4±2.1; a total of 44 blood samples) examined in dynamics. The control group included healthy adults (n = 23, 12 men and 11 women; mean age, 51±13 years). Laboratory studies included bacteriological cultures, determination of absolute and relative numbers of subpopulations of classical, intermediate and non-classical monocytes and their expression of HLA-DR and CD64, determination of IL-6, TNFα, IL-1β, IL-10 concentration in blood serum. Absolute number of monocytes was increased in the sepsis patients, the ratio of classical monocytes was also increased, like as relative and absolute numbers of  intermediate cells. Meanwhile, the subpopulation of non-classical monocytes did not change significantly. The monocyte subpopulation ratio depended on the presence of bacteria in blood, i.e., a higher proportion of intermediate cells was observed in the samples positive for bacteria in blood cultures. The ratio of subpopulations was restored after elimination of bacteria from the circulation. The expression density of LPS receptor (CD14), IgG receptors (CD16 and  CD64) was found to be increased, especially in the subpopulations of intermediate and nonclassical monocytes. In all subpopulations of monocytes, expression of HLA-DR is reduced, most notably in classical monocytes, least in intermediate cells. There was a significant increase in serum levels of IL-6, IL-1β, TNFα and IL-10 cytokines. Direct correlation between the absolute number of classical monocytes and IL-6 concentration was revealed, as well as intensity of multiple organ dysfunction. Increase in absolute amount of classical monocytes and IL-6 concentration might serve as an indirect criterion for evaluation of endothelial activation, an active producer of IL-6 and myeloid cell growth factors. A direct correlation between the percentage of CD14+CD16+ cells and IL-10 concentration in blood serum indicates to an important role of intermediate monocytes in IL-10 production. IL-10 suppresses the antigen-presenting function of intermediate cells, namely, expression of HLA-DR molecules, as suggested by inverse correlation between the IL-10 concentration and HLA-DR expression density on CD14+CD16+ cells. We have also determined an inverse correlation between the degree of multi-organ dysfunction  and relative amount of HLA-DR+ monocytes. The larger was a classical monocyte subpopulation, the more noticeable was a decrease of this index. The studies in ratios of monocyte subpopulations help to understand the mechanisms of antibacterial protection in sepsis. Monitoring of classical monocyte numbers and serum concentrations of IL-6 is necessary for a comprehensive assessment of inflammatory response in sepsis. Determination of HLADR expression on monocytes allows us to evaluate the intensity of immune suppression in critically ill patients

Employing toxin-antitoxin genome markers for identification of Bifidobacterium and Lactobacillus strains in human metagenomes

Recent research has indicated that in addition to the unique genotype each individual may also have a unique microbiota composition. Difference in microbiota composition may emerge from both its species and strain constituents. It is important to know the precise composition especially for the gut microbiota (GM), since it can contribute to the health assessment, personalized treatment, and disease prevention for individuals and groups (cohorts). The existing methods for species and strain composition in microbiota are not always precise and usually not so easy to use. Probiotic bacteria of the genus Bifidobacterium and Lactobacillus make an essential component of human GM. Previously we have shown that in certain Bifidobacterium and Lactobacillus species the RelBE and MazEF superfamily of toxin-antitoxin (TA) systems may be used as functional biomarkers to differentiate these groups of bacteria at the species and strain levels. We have composed a database of TA genes of these superfamily specific for all lactobacilli and bifidobacteria species with complete genome sequence and confirmed that in all Lactobacillus and Bifidobacterium species TA gene composition is species and strain specific. To analyze composition of species and strains of two bacteria genera, Bifidobacterium and Lactobacillus, in human GM we developed TAGMA (toxin antitoxin genes for metagenomes analyses) software based on polymorphism in TA genes. TAGMA was tested on gut metagenomic samples. The results of our analysis have shown that TAGMA can be used to characterize species and strains of Lactobacillus and Bifidobacterium in metagenomes

Investigation the structure and properties of deformed semi-finished products produced from chips of Al–Mg alloys system alloyed with scandium

The article presents the results of studies that make it possible to solve the problem of processing secondary waste from expensive aluminum alloys without irretrievable loss of metal. For this purpose, tasks were set and solved for the development of technological schemes for obtaining longish deformed semi-finished products from chip waste of Al–Mg alloys 01570 and 1580 alloyed with scandium using methods of powder metallurgy and metal forming. For their experimental verification, the operations of chip briquetting, combined rolling-extrusion (continuous extrusion), sectional rolling, hot extrusion and drawing in combination with heat treatment were applied. According to these schemes, semi-finished products in the form of rods and wires were obtained. Structure and mechanical properties were investigated. It has been revealed that when hot-extruded rods are obtained from chip briquettes of alloy 01570 on a vertical hydraulic press, even with significant degrees of deformation during extrusion, the margin of plastic properties is small and makes it possible to obtain a wire with a diameter of only 4.2 mm after drawing. The processing of briquettes from 1580 alloy chips using the combined rolling-extrusion method makes it possible to obtain after cold deformation a wire with a diameter of up to 3 mm. At the same time, the influence of the annealing process on the structure and properties of deformed semi-finished products from the investigated alloys was studied. It is shown that due to the low plasticity of the investigated material cold working of the rods must be carried out with small degrees of deformation, alternating it with intermediate annealing according to the proposed regime. An analysis of the physical and mechanical properties of the wire obtained using combined processing showed that its strength and plastic properties are comparable to the properties of the wire obtained from a cast billet, and the structure is characterized by a high degree of elaboration and compactness. Thus, as a result of the research, technological schemes have been developed and processing parameters have been determined for the production of rods and wire from graded chip waste of alloys 01570 and 1580 using compaction, discrete and continuous extrusion, as well as cold drawing. © 2022 The AuthorsMinistry of Education and Science of the Russian Federation, Minobrnauka: FSRZ-2020-0013The research was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (scientific theme code FSRZ-2020-0013)

A Model for the Development of the Rhizobial and Arbuscular Mycorrhizal Symbioses in Legumes and Its Use to Understand the Roles of Ethylene in the Establishment of these two Symbioses

We propose a model depicting the development of nodulation and arbuscular mycorrhizae. Both processes are dissected into many steps, using Pisum sativum L. nodulation mutants as a guideline. For nodulation, we distinguish two main developmental programs, one epidermal and one cortical. Whereas Nod factors alone affect the cortical program, bacteria are required to trigger the epidermal events. We propose that the two programs of the rhizobial symbiosis evolved separately and that, over time, they came to function together. The distinction between these two programs does not exist for arbuscular mycorrhizae development despite events occurring in both root tissues. Mutations that affect both symbioses are restricted to the epidermal program. We propose here sites of action and potential roles for ethylene during the formation of the two symbioses with a specific hypothesis for nodule organogenesis. Assuming the epidermis does not make ethylene, the microsymbionts probably first encounter a regulatory level of ethylene at the epidermis–outermost cortical cell layer interface. Depending on the hormone concentrations there, infection will either progress or be blocked. In the former case, ethylene affects the cortex cytoskeleton, allowing reorganization that facilitates infection; in the latter case, ethylene acts on several enzymes that interfere with infection thread growth, causing it to abort. Throughout this review, the difficulty of generalizing the roles of ethylene is emphasized and numerous examples are given to demonstrate the diversity that exists in plants

Эффективность и безопасность эверолимуса у больных распространенным почечно-клеточным раком (результаты российского многоцентрового наблюдательного исследования)

Objective – to evaluate efficacy and safety of everolimus in Russian population of unselected patients with advanced renal cell carcinoma progressing after at least 1 line of anti-angiogenic targeted therapy.Materials and methods. In observational multicenter study CRAD001LRU03 from 17.01.2012 to 31.03.2015 in 43 centers 226 patients with advanced renal cell carcinoma with documented progression on the background or after at least 1 line of anti-angiogenic targeted therapy were included. The survey was conducted on all patients according to the practice, everolimus therapy was administered in accordance with instructions to the drug.Results. Objective response rate was 10 %, tumor control was achieved on 69.2 % of patients. Progression-free survival median – 7.8 months. Adverse events occurred in 44.7 % of patients, reached the III–IV severity of 9.3 %, were the reason for the cancellation of everolimus therapy in 2.2 % of cases. The most frequent complications of treatment were pneumonitis (n = 5 (2.2 %)) and anemia (n = 3 (1.3 %)).Conclusion. The observational study confirms efficacy and favorable safety profile of everolimus mTOR inhibitor in the Russian unselected patients with advanced renal cell carcinoma with progression or intolerable toxicity against background of anti-angiogenic therapy.Цель исследования – оценить эффективность и безопасность эверолимуса в российской популяции неотобранных больных распространенным раком почки, прогрессирующим после не менее 1 линии антиангиогенной таргетной терапии.Материалы и методы. В наблюдательное многоцентровое исследование CRAD001LRU03 с 17.01.2012 по 31.03.2015 в 43 центрах были включены 226 больных распространенным почечно-клеточным раком с доказанным прогрессированием на фоне или после не менее 1 линии антиангиогенной таргетной терапии. Обследование всех пациентов проводили согласно принятой в каждом центре практикой, терапию эверолимусом назначали в соответствии с инструкцией к препарату.Результаты. Частота объективных ответов составила 10 %, контроль над опухолью достигнут у 69,2 % больных. Медиана выживаемости без прогрессирования – 7,8 мес. Нежелательные явления развились у 44,7 % пациентов, достигли III–IV степени тяжести в 9,3 % и послужили причиной для отмены терапии эверолимусом в 2,2 % случаев. Наиболее частыми осложнениями лечения были пневмонит (n = 5 (2,2 %)) и анемия (n = 3 (1,3 %)).Заключение. Наблюдательное исследование подтвердило эффективность и благоприятный профиль безопасности ингибитора mTOR эверолимуса у неотобранных российских больных распространенным раком почки с прогрессированием или непереносимой токсичностью на фоне антиангиогенной таргетной терапии

Development of combined machining modes, investigation of mechanical properties and structure of deformed semi-finished products from alloy 01417

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.The article presents the results of studies on the production of wire with a diameter of 0.5 mm from aluminum alloy 01417 with a content of rare-earth metals (REM) in the amount of 7-9% for aircraft construction needs. The deformation modes, the experimental technique and equipment for the implementation of the proposed technology described. The wire was obtained by drawing and bar rolling with subsequent drawing from a rod with a diameter of 5 mm, obtained previously using the process of combined rolling-extruding (CRE) from a continuous ingot with a diameter of 12 mm, cast in an electromagnetic mold (EMM). The wire obtained by the presented technology was subjected to 4 different heat treatment modes with annealing temperatures from 350 to 500 °C and holding time of 1 h in the furnace to achieve mechanical and electrophysical properties corresponding to TS 1-809-1038-2018. The level of strength and plastic properties obtained in the course of research required only one intermediate annealing. The microstructure of the wire was investigated and the modes were revealed that made it possible to obtain the required level of mechanical properties and electrical resistivity, satisfying TS 1-809-1038-2018