Search

The proposed paper is a study of resource nationalism. Resource nationalism appeared in Mongolia in the post-Socialist period. In this paper, we understand resource nationalism as a wide spectrum of strategies domestic elites employ in order to increase their control of natural resources - definition by Paul Domjan and Matt Stone. After an analysis of legal materials, mass media articles and political rhetoric, the author of this paper concludes that the sources of resource nationalism should be searched in the texts that date back to the Socialist era. Also, the sources of resource nationalism can be found in the ideas about justice of those times. The idea that natural resources belong to the people has been fixed in mass opinion, while contemporary nationalists justify this idea from the standpoint of “blood and soil”. That creates serious problems for Mongolia, a country with resource economy. The matter is that economic growth driven with foreign investments has caused a deep social stratification. In its turn, social stratification gave birth to a social demand for fair profit distribution from natural resource extraction. In the political sphere, this social demand quickly received a reaction - in the form of resource nationalism rhetoric. In the paper, we notice that resource nationalism in Mongolia has not been formed as a vivid legal or political doctrine. Today, it is a set of populist rhetoric of current interest which are used both for lobbying future political decisions in mining and for legitimizing the decisions already made.

In June 2022, within the XI International Educational Consensus on Respiratory Medicine in Pediatrics, an expert council on the anti-inflammatory agent ammonium glycyrrhizinate in treating acute respiratory infections and allergic diseases of the respiratory tract was held in Vladimir. The resolution of the Expert Council is presented. Based on these studies, experts recommend the use of ammonium glycyrrhizinate in patients with acute respiratory tract infection (including COVID-19); in the rehabilitation period of patients who recovered from the new coronavirus infection with lung involvement; patients with recurrent obstructive bronchitis, including those at high risk of bronchial asthma; patients with allergic rhinitis; patients with mild to moderate asthma.

The paper considers the main problem of improving quality of steel sheets for welded pipes obtained at plate rolling mills and the main reasons that reduce it. There is a possibility of improving quality of steel sheets using technological capabilities of the unit of combined continuous casting and deformation. Problem of determining stress state of metal in cyclic deformation zone is posed and solved. The results of obtaining 09G2S sheet steel in pilot unit of continuous casting and deformation are presented. Magnitude of stresses in the center of cyclic deformation during production of steel sheets was determined for welded pipes at the unit. The authors present results of experimental study of the process of steel sheets production at pilot unit of continuous casting and deformation. The article considers the results of microstructure analysis, microhardness determination and microanalysis of chemical composition of the studied steel in various zones of the strip cross section. Structural inhomogeneity development in ferritic-pearlitic steel is interpreted along the thickness of sheet under conditions of combined thermomechanical processing of metal solidified in the mold. Predominantly ferritic microstructure is generated in the central light interlayer of the strip compared to base metal, characterized by a sharp decrease in carbon concentration in it. There is a possibility of such structure genesis at the first stages of crystallization during forging of low-carbon steel, when the excess phase of high-temperature ferrite that solidifies first is located mainly in the strip center. The size of pearlite grains in the light interlayer covariates with the grain structure of pearlite in the strip base metal and does not form precipitates of lath morphology, which increase tendency of steel to brittle fracture.

Abstract In this paper, we consider disturbances in the airglow of the Earth’s upper atmosphere caused by a launch of the Yamal-601 satellite on May 30, 2019. For this purpose, we used the data acquired with an optical system of the Institute of Solar−Terrestrial Physics, Siberian Branch, Russian Academy of Sciences (ISTP SB RAS). The measurements were carried out at the Geophysical Observatory (GPO) of the ISTP SB RAS (~52° N, ~103° E) with a complex of optical instruments—a whole-sky camera, a spectrograph, and a Fabry–Pérot interferometer. According to the data of the KЕО Sentinel camera, an extensive area of airglow was observed along the flightpath; it appeared approximately 2−4 min after the spacecraft’s passage over the GPO and existed for ~20 min. A transversal scale of the spacecraft’s flightpath is estimated approximately as 95–110 km if the spontaneous-emission altitude is assumed to be at ~150 km (and it is about 190–220 km if the spontaneous-emission altitude is ~300 km). We discuss the mechanisms that may result in forming the observed area of airglow, including the mechanisms connected with the physical and chemical interaction of fuel products with atmospheric components and the influence of propagation of a shock wave or short-period internal gravitational waves. Probable causes of the delay observed in appearing the airglow after the spacecraft’s flyby are analyzed.

Premature infant feeding often causes a number of difficulties not only during the nursing of a baby in the neonatal period, but also in further periods of the formation of nutritional skills and habits. Eating difficulties are noticeable not only during the first year of life. The further development of the eating behavior of premature children differs from fullterm peers.

Currently, in pediatric practice, a special place is occupied by patients with severe allergic lesions of the gastrointestinal tract, which often manifest immediately after the birth of a child. Food protein-induced enteropathy reduces the quality of life of the child and family; it is difficult to diagnose and to treat. We present a clinical case of a patient with food protein-induced enteropathy, complicated by severe B12-deficiency anemia and edema syndrome. In the tactics of patient management, attention is paid to the late diagnosis of the underlying disease and complications, the complexity of prescribing diet therapy and the lack of alertness regarding the diagnosis of malabsorption associated with food intolerance.

Purpose: studying the effectiveness of the use of luteotropic action for preventing embryonic development disorders.Materials and methods. The research object is lactating animals in 60-75 days after a selection that manifests sex cyclicity and separated into 4 groups. The first group (n = 11) – in the insemination of parenterally injected the preparation of tautin at a dose of 5 ml. The second group (n = 11) – tautin was administered at a dose of 10 ml on the same time as cows of the first group. The third group (n = 12) – tautin injected 10 ml twice: during seeding and on the 14th day after seeding. The fourth group (n = 12) – was injected with saline per day of seeding and on the 14th day at a dose of 10 ml (negative control). Conducted a transrectal and ultrasound study at the end of the 1st and 2nd month of gestation, in which the size of the yellow body of pregnancy, embryo and the fetus was taken into account. Upon completion of pregnancy, all animals are taken into account: the nature of the flow of labor (physiological flow, objectiveness, fulbirth, detention, postpartum), postpartum period (physiological flow, submissiveness of the uterus, endometritis), the state of newborn calves (gender of the fetus, the time of manifestation of confident poses of standing, sucking reflex, body mass).Results. It has been established that the twofold administration of the tautin during seeding and on the 14th day after a dose of 10,0 ml is accompanied by an increase in fertilization by 19,7-28,8%, a decrease in the delay syndrome of the fetus development of 1,4-4,0 times, Absence of embryonic mortality. The use of the drug Tautin twice in a dose of 10,0 ml is accompanied by an increase in the size of the yellow body of pregnancy in 1,43-2,15 times, in comparison with other modes of its use, cockerel-dump-sized – by 12,9-37,6% and diameter Cases – by 10,1-46,6%. The use of a luteotropic drug is accompanied by a decrease in the incidence of cows to the detention of the last 1,8 times, the submissive of the uterus – 1,8 times, endometritis – by 2,7 times, the time of manifestation of confident posture of the standing of newborns of newborn calves – by 15,6 minutes, a sucking reflex – on 16,5 min and diarrheal syndrome – 2,7 times.Conclusion. The scientific novelty of research lies in the fact that new knowledge is obtained on the effectiveness of the use of the drug of luteotropic action, created using the technology of recombinant proteins, for the prevention of violations of embryonic development in cows.

The research was conducted in the Perm Region. Geo-structural analysis, phyto-indication, and biolocationwere used. Prior to this, forest ecosystems were studied by classical methods, in which it was found that the combinedinfluence of the density of microcenosis and the tree genotype determines the size of trees by only 40 %. It follows that 60%of the factors that determine the size of trees in different phytocenotic and soil conditions remain unknown. Therefore,we then began to study small geoactive zones (MGA-zones) with the hypothesis that they are related to the “small ringstructures of loose deposits of the earth’s crust” by Yu. I. Fivensky. Favorable MGA zones with a size of 1.0-3.0 m are foundwith a frequency of 220-250 pcs./ha and the pine tree is preserved 39 times better, increases the trunk volume by 46 %,forms 200-year-old forests, and its large trees are their indicators. Networks of them can be used as an energy frameworkand, for example, in a forest nursery, their energy in the conditions of cold spring increased the germination of spruceseeds by 7 times. Apparently, the forest species evolved using the energies of these zones; in any case, all the tree species westudied significantly increased their longevity and size. It shows promising sites with structures of Yu. I. Fivensky, whererings of hellebore (Verátrum lobeliánum Bernh.), fern (Dryopteris filix mas L.), and the highest trees of Siberian spruce(Picea obovate Leded) were previously discovered for the first time.) and Siberian cedar pine (Pinus sibirica Du Tour).

Characteristics of partially pseudo-ordered (K-ordered) rings are considered. Properties of ideals in pseudo-ordered rings are described. A variation of the concept of the prime radical for a ring in the subclass of directed pseudo-ordered rings (AO-ordered rings) is investigated. The description of elements of AO-prime radicals for AO-ordered rings is obtained.

The article presents the results of an experimental study of the features of ultrasonic testing when adjusting the sensitivity with chord-type transducers. The unevenness of the control sensitivity in the direction perpendicular to the welded joint of the pipe element is shown. At a distance of 4…5 mm from the center of the weld, the reduction is 12…15 dB. In order to ensure reliable detection of discontinuities, it is proposed to scan perpendicular to the welded joint with the simultaneous movement of the chordal probe along the seam. The scanning parameters have been calculated. A corresponding instruction for ultrasonic testing of circular butt welded joints of pipe elements has been developed. The instruction describes the testing process with scanning of welded joints by chord type probes. Sensitivity adjustment is provided at a flat-bottomed reflector. A probe is placed on the border of the nearseam zone of the welded and moved perpendicular to the seam to the rear distance from the seam, shifted along the seam, taking into account the step to the seam to a position close to the seam, the probe is again shifted by a compression step, etc. Instruction is intended for ultrasonic testing of circular butt welded joints of 32´4 pipe elements; 42´4.5; 36´6; 60´6 and 108´6 mm.

The article describes the main loads affecting shaped backups of the unit of combined process of continuous casting and deformation in billets production. Importance of determining the temperature fields and thermoelastic stresses in shaped backups with collars is provided at formation of several billets, at slab compression and at idle during water cooling of backups. The authors describe strength and thermophysical properties of steel from which the backups are made. Geometry of backups with collars used for obtaining billets of three different shapes in one pass is shown. Initial data of the temperature field calculation are given for backups with collars of the combined unit. Temperature boundary conditions are considered for calculation of temperature fields of backups with collars. Boundary conditions determining temperature of such backups are described and values of the heat flow and effective heat transfer coefficient are given. The results of calculation of temperature fields are performed in four sections and are given for typical lines and points located on contact surface of backups with collars and in contact layer at depth of 5 mm from the working surface. The sizes of finite elements grid which is used at calculation of temperature field of backups with collars are provided. Temperature field of backups with collars is determined on the basis of solution of unsteady thermal conductivity equation corresponding initial and boundary conditions. Values and regularities of temperature distribution in bases and in tops of the middle and extreme edges of the shaped backups are presented during slab compression and at idle when obtaining billets of three shapes in one pass at the unit of combined continuous casting and deformation.

Intensive development of the steppe communities of Kulunda, located in the southern part of the West Siberian lowland in the XX century led to a significant anthropogenic transformation of all steppe ecosystems. Representatives of the legume family, which is the most important component of steppe grasses, have almost disappeared from the grasslands. The research was conducted on the territory of the Mikhailovsky district of the Altai territory, on the lands of LLC KKH «Partner» in the environs of Poluyamki village scince 2013-till present days climatic conditions of dry steppe zone of Western Kulunda. The aim of the work was to evaluate representatives of the legume family for ecological reclamation of Kulunda steppe pastures. The experiment was performed on 2 degraded fenced steppe areas (10 x 10 m) corresponding to the third stage of pasture digression. Winter sowing of legumes was carried out: cicer milk vetch (Astragalus cicer L.), sainfoin milk vetch (A. onobrychis L.), furrowed milk vetch (A. sulcatus L.), bird’s foot trefoil (Lotus corniculatus L.), sickle alfalfa (Medicago falcata L.), hop alfalfa (M. lupulina L.) and late spring sowing: cicer milk vetch and sainfoin, bird’s foot trefoil by tapping into the sod. Monthly growth dynamics of sown plants (number of shoots per m2, height, phenology) was recorded, and the feed value of aboveground biomass was established. It was found that the drought-resistant species of alfalfa sickle has a significant biomass, is short-lived in the grass stand and requires re-sowing every 4 years. Hop alfalfa is recommended for improving degraded pastures, but due to its short ontogeny, it needs to be re-sown every three years. Among milk vetches, sainfoil milk vetch is the most promising – a long-rooted, rod-rooted polycarpic that increases its area due to numerous underground rhizomes. The greatest nutritional and energy value was possessed by the phytomass of bird’s foot trefoil and sickle alfalfa.

The research aim is to identify the most energy-saving and cost-effective technology for winter wheat cultivation. The maximum moisture content of soil was recorded when it was processed using Mini-till technology – from 17.2% to 17.9%, and the lowest - with traditional technology – from 15.7% to 16.4%. The lowest soil density with traditional winter wheat technology is both on the background with fertilizer (1.18%) and on the background without fertilizer (1.21%). The lowest contamination of crops with traditional technology without mineral fertilizers (42 pcs/м2). With the Mini-till technology, the total blockage increased to 51pcs/м2, and with the No-till technology, it was maximum- 128 pcs/м2. Against the mineral fertilizers, the same tendency of total blockage-from – from 40 pcs/м2 to 132 pcs/м2, respectively. With No-till technology, the total plant damage increased from 17.0 % to 14.6 %, with traditional treatment – from 12.4% to 10.1%, and with Mini-till technology-from 12.7% to 9.6%. The yield of winter wheat when using traditional plowing against the background of mineral fertilizer is 3.59 t / ha, and against the background without mineral fertilizer – 2.24 t / ha. The yield of Mini-till technology for mineral background is 3.13 t / ha, and without fertilizers-1.81 t / ha. With the No-till technology, the winter wheat yield is 1.69 t/ha, and without fertilizers – 1.11 t/ha. The highest level of profitability with Mini-till technology against the background of mineral fertilizers-73.2%.

The article describes the main loads affecting shaped backups of the combined process unit of continuous casting and deformation during billet production. The importance of determining the temperature fields and thermoelastic stresses in shaped backups with collars is provided during the formation of several billets, at slab compression, as well as during idling water cooling of backups. The authors describe strength and thermophysical properties of steel from which the backups are made. Geometry of backups with collars used for obtaining billets of three different shapes in one pass is shown. Initial data of the temperature field calculation are given for backups with collars of the combined unit. Temperature boundary conditions are considered for the temperature field calculation of backups with collars. Boundary conditions determining temperature of such backups are described and the values of the heat flow and effective heat transfer coefficient are given. The calculation results of temperature fields are performed in four sections and are given for typical lines and points located on the contact surface of backups with collars and in contact layer at 5-mm depth from the working surface. The sizes of the finite element grid, which is used for the temperature field calculation of backups with collars, are provided. The temperature field of backups with collars is determined based on the solution regarding the unsteady thermal conductivity equation corresponding to initial and boundary conditions. When obtaining billets of three shapes in one pass at the unit of combined continuous casting and deformation, values and regularities of temperature distribution in the bases and tops of the middle and extreme edges of the shaped backups are presented during slab compression and at idle. © 2020, Allerton Press, Inc.

Volumetric problem of determining stress-strain state of metal in deformation zone during forming of three section billets from the slab by separating collars of grooved strikers on the unit of combined continuous casting and deformation was set and solved. The expediency of using such unit was justified for longitudinal division of continuously cast slab into a series of section billets. Calibration of strikers was provided with separating collars for production of three section billets connected by bridges in a single pass. 3D image of them are shown. The technology of billets production on the unit of combined continuous casting and deformation is described. The authors present the problem statement, initial data and boundary conditions for determining stress-strain state of metal in deformation zone during production of three section steel billets by calibrated strikers using the ANSYS software. Dependences of the modulus of elasticity and strain resistance on temperature and degree of deformation are given for St3sp steel. The solid-state finite elements used in calculation of stress-strain state of metal in deformation zone and dimensions of the grid are described. The results of calculation of stress-strain state of metal in deformation zone were obtained by solving the problem of elasticity by the finite element method in volumetric formulation. The results of calculation of displacements and stresses in deformation zone are given in form of graphs and tables by working surfaces in four cross sections and are presented for characteristic points. Values and regularities of distribution of axial displacements in width and length of deformation center were determined during introduction of strikers separating collars into continuously cast slab in production of three section steel billets on the unit of combined continuous casting and deformation. © 2020 National University of Science and Technology MISIS. All rights reserved.

For purposes of an increase in number and profitability of the rearing of pigs the technological project of standard series of pig farms has been developed for the peasant (farmer) and private subsidiary farms at continuous fl ow system of the production of pork and two-phase technology of the rearing of piglets has been developed. The increase in the production of pork and decrease in its prime cost by development of the technological project of pig farms for small forms of management on 30–500 heads with the finished cycle of production has been studied. It was established that the quantity of pig stalls for the majority of the production groups of pigs has to be projected 2,2 times more than a number of pigs in the group.