Russian industry in global value-added chains

The paper analyzes Russia's participation in global value-added chains in the context of global trends in their development and the challenges facing the Russian economy in modernizing its industry. The analysis is based on the OECD’s TiVA indicators. The results indicate that the extent of Russia's involvement in GVACs is very significant, but the nature of this participation is purely raw. The specificity of the participation of the Russian Federation in the international fragmentation of production within GVACs is that most of the links in value chains are bottom-up. Russia is extremely limited in using imported flows to create export products with high added value. The study confirms that in the international division of labor, Russia retains a historically established specialization, with predominance in the export of mineral and agricultural raw materials, which determines the current profile of Russia's participation in global value-added chains.peer-reviewe

Оценка качества перевозок пассажиров в городе Волжском по требованиям социального стандарта

The article considers organisation of transportation services for passengers with public transport followed by their quality assessment in conformity with the requirements of the social standard. The objective of the article is to determine quality of passenger transportation by a municipal passenger enterprise with buses of large and medium capacity and by individual entrepreneurs carrying out transportation with minibuses. The article uses reporting materials on transportation of passengers by municipal and private carriers. To achieve the purpose, quality indicators of passenger transportation by public transport were calculated using the methodology of the social standard approved by the Ministry of Transport of the Russian Federation. The number of points for each indicator defined by the social standard for municipal carriers and individual entrepreneurs is determined, the results of relevant calculations are presented. The analysis of quality of passenger transportation services provided by municipal and private carriers was carried out. The quantitative characteristics of quality indicators values made it possible to determine the current state of passenger transportation services, identify shortcomings and make a forecast for improving quality of services. To improve quality of passenger transportation services, measures were proposed for bodies responsible for transportation and carriers.Встатье рассматриваются вопросы организации транспортного обслуживания пассажиров общественным транспортом с оценкой его качества по требованиям социального стандарта. Цель статьи – определить качество перевозок пассажиров муниципальным пассажирским предприятием на автобусах большой и средней вместимости и индивидуальными предпринимателями, осуществляющими перевозки на автобусах малой вместимости. В статье использованы отчётные материалы по перевозке пассажиров муниципальными и частными перевозчиками. Для достижения поставленной цели произведён расчёт показателей качества перевозок пассажиров общественным транспортом с использованием методики социального стандарта Минтранса РФ. Определено количество баллов по каждому определённому социальным стандартом показателю для муниципальных перевозчиков и индивидуальных предпринимателей, представлены результаты расчётов. Проведён анализ качества услуг по перевозке пассажиров муниципальными и частными перевозчиками. Количественные характеристики показателей качества позволили определить текущее состояние услуг по перевозке пассажиров, выявить недостатки и дать прогноз улучшения качества услуг. С целью улучшения качества услуг по перевозке пассажиров предложены мероприятия для организаторов перевозок и перевозчиков

The incidence and aggravating factors of male hypogonadism in type 2 diabetes

BACKGROUND: Male hypogonadism is associated with type 2 diabetes mellitus (T2DM), therefore, it is of interest to study its frequency. The clinical symptoms of hypogonadism are not specific, and laboratory diagnostics is the basis for its detection. The optimal method for this diagnostics is isotope dilution liquid chromatography/tandem mass spectrometry, which was used in our study. AIMS: Assessment of the incidence and aggravating factors of male hypogonadism in type 2 diabetesMATERIALS AND METHODS: A full-design, cross-sectional, screening, single-center, non-interventional study included men with T2DM, who were he was treated in Endocrinology Research Centre, Moscow. The study was conducted from October 2021 to January 2022. Medical history assessment, physical examination with determination of body mass index (BMI), measurement estimation of total testosterone by isotope dilution liquid chromatography/tandem mass spectrometry, glycated hemoglobin (HbA1c) and lipid profiles were performed. The groups were compared using the Mann-Whitney U-test for quantitative indicators and χ² with Yates’ correction for qualitative ones. Differences were considered statistically significant with p0,05.RESULTS: Hypogonadism was detected in 355 (70.3%) men with T2DM. Patients with hypogonadism had statistically significantly higher BMI, worse glycemic control, lower HDL levels, and higher triglycerides than eugonadal men. An additional comparative analysis among non-obese individuals showed the presence of statistically significant differences in the level of HbA1c (higher in hypogonadal men) and HDL (lower in hypogonadal men). An analysis of hypogonadal patients depending on the presence of obesity showed statistically significant differences between groups in the level of total testosterone (lower in obese men) and triglycerides (higher in obese men).CONCLUSIONS: The prevalence of male hypogonadism in type 2 diabetes was 70,3%. Its development was associated with obesity and poor glycemic control

Study of the surface microrelief of copper nanoparticles by the method of scanning probe microscopy

This work was supported by grants from the RFBR № 17-07-00407-а and № 17-32-50137-mol_nr

Ethnic stereotypes’ reflection by means of modern cinematography

The aim of the research work is to identify the specifics of auto and hetero stereotypes about Americans and Russians on the example of modern cinema in the USA and Russia. It is established that the specificity of ethnic stereotypes represented by modern films of the USA and Russia depends on the culture of the society, the conditions of its development, the depth of contacts between ethnic groups in the process of historical developmen

«Интервалы безопасности» на остановках автобусов города Волжского

[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT Analysis of the street-road network in the city of Volzhsky, a tense security situation with embarkation and disembarkation of public transport passengers is provided. The discrepancy between the lengths of stopping points and the incoming traffic of buses is determined. Proposals are made to improve the quality of passenger transportation, taking into account safety intervals at bus stops and optimizing the routes of urban public transport, private buses and fixed-route taxis. Keywords: urban public transport, bus, stopping point, safety interval, route network, route optimization.Текст аннотации на англ. языке и полный текст статьи на англ. языке находится в прилагаемом файле ПДФ (англ. версия следует после русской версии).Анализ улично-дорожной сети в городе Волжском, напряжённой ситуации с обеспечением безопасности с посадкой и высадкой пассажиров общественного транспорта. Определено несоответствие длин остановочных пунктов входящему потоку автобусов. Предложены мероприятия по улучшению качества перевозки пассажиров с учётом интервалов безопасности на остановках автобусов и оптимизации маршрутов городского общественного транспорта, частных автобусов и маршрутных такси

Predicted facies, sedimentary structures and potential resources of Jurassic petroleum complex in S-E Western Siberia (based on well logging data)

This paper is devoted to the current problem in petroleum geology and geophysics- prediction of facies sediments for further evaluation of productive layers. Applying the acoustic method and the characterizing sedimentary structure for each coastal-marine-delta type was determined. The summary of sedimentary structure characteristics and reservoir properties (porosity and permeability) of typical facies were described. Logging models SP, EL and GR (configuration, curve range) in interpreting geophysical data for each litho-facies were identified. According to geophysical characteristics these sediments can be classified as coastal-marine-delta. Prediction models for potential Jurassic oil-gas bearing complexes (horizon J[1]{1}) in one S-E Western Siberian deposit were conducted. Comparing forecasting to actual testing data of layer J[1]{1} showed that the prediction is about 85%

Extracellular vesicles derived from Acholeplasma laidlawii PG8

Extracellular vesicle production is believed to be a ubiquitous process in bacteria, but the data on such a process in Mollicutes are absent. We report the isolation of ultramicroforms - extracellular vesicles from supernatants of Acholeplasma laidlawii PG8 (ubiquitous mycoplasma; the main contaminant of cell culture). Considering sizes, morphology, and ultrastructural organization, the ultramicroforms of A. laidlawii PG8 are similar to membrane vesicles of Gram-positive and Gram-negative bacteria. We demonstrate that A. laidlawii PG8 vesicles contain genetic material and proteins, and are mutagenic to lymphocytes of human peripheral blood. We show that Mycoplasma gallisepticum S6, the other mycoplasma, also produce similar structures, which suggests that shedding of the vesicles might be the common phenomenon in Mollicutes. We found that the action of stress conditions results in the intensive formation of ultramicroforms in mycoplasmas. The role of vesicular formation in mycoplasmas remains to be studied. ©2011 with author. Published by TheScientificWorld

Hydrochemical and biogeochemical features of freshwater and brackish lakes in eastern Sikhote-Alin

Concentration of major ions and trace metals dissolved and suspended in water and trace metals in plankton of freshwater (Vaskovskoye, Golubichnoye, Yaponskoye) and brackish (Dukhovskoye, Krugloye, Mramornoye, Blagodati) lakes of eastern Sikhote-Alin is determined in July 2011-2012. The Lakes Golubichnoye and Blagodati are included in the Sikhote-Alin State Natural Biosphere Reserve. Anions are detected by the liquid chromatography (Shimadzu LC-10AVP), cations and metals are analyzed by the atomic absorption spectrophotometry (AAS Shimadzu 6800), and carbon concentration is measured by the method of thermocatalytic oxidation with infrared registration (TOC-VCPN, Shimadzu). The freshwater lakes of eastern Sikhote-Alin are distinguished by heightened concentrations of chlorides, sulfates, and sodium as compared with lakes of East-European Plain, mainly because of aerial transfer of ions from the sea. The ions concentration in brackish lakes is determined by direct penetration of seawater. Difference of the heavy metals concentration between freshwater and brackish lakes is negligible, except the manganese with higher concentration in the freshwater lakes. Lakes with wetlands in their drainage area have high concentrations of dissolved organic carbon, iron and manganese, which are depended on water regime. Concentrations of trace metals in the lakes water are low because of its pluvial origin (rainwater transforms slightly in the process of filtration through effusive rocks), with exception of Lake Vaskovskoe located in the area of mining and processing the polymetallic and borosilicate ores, close to the lead smeltery in Rudnaya Pristan stopped in 2009: the lead concentration in the water of this lake is heightened, both in dissolved and suspended forms, though does not exceed the maximal permissible concentration for drinking water. Accumulation of metals by plankton is determined mainly by biological need of the plankton in these elements and practically doesn’t depend on their concentration in water

ИДЕНТИФИКАЦИЯ ПРИМЕСЕЙ В ВЫСОКОЧИСТОЙ СЕРЕ С ИСПОЛЬЗОВАНИЕМ МЕТОДА ХРОМАТО-МАСС-СПЕКТРОМЕТРИИ

For the first time the molecular impurity composition of high-purity sulfur was investigated using gas chromatography-mass spectrometry method. The sample preparation consisted of extracting the impurities from the sulfur samples during their vacuum distillation. The sample mass of sulfur, which was used for the extraction, was up to 1 kg. Impurities were condensed in glass ampoules which then carried them to the inlet in the dosing system of gas chromatography-mass spectrometer. For their separation, GS-GasPro capillary adsorption columns with a modified silica gel sorbent and with polytrimethylsilylpropyne were used. The joint application of these columns made it possible to determine a wide range of impurity substances in sulfur. Identification of impurities was carried out by comparing their experimental mass spectra with the data from the NIST database. In the case of overlapping chromatographic peaks of impurities their identification was carried out according to the characteristic ions and subtracting the peaks of ions that belong to the adjacent component. It was found that, when using the column with polytrimethylsilylpropyne, oxygen and nitrogen containing organic substances elute in asymmetric peaks with a steep front and a diffused rear. In high purity sulfur the impurities of permanent gases, carbon dioxide, hydrogen sulfide, sulfur dioxide, сarbonyl sulphide, saturated and unsaturated hydrocarbons C2-C8, aromatic hydrocarbons, oxygen-, nitrogen-, sulfur-containing hydrocarbons were identified. The total number of identified impurities equaled to 51.Keywords: high-purity sulfur, impurities, identification, gas chromatography-mass spectrometry, capillary columnDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.005 А.Iu. Sozin, M.F. Churbanov, О.Iu. Chernova, T.G. Sorochkina, I.V. Skripachev, G.E. Snopatin G.G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Science, Tropinina Str., 49, Nizhny Novgood, 603950,  Russian Federation  Впервые с использованием метода хромато-масс-спектрометрии исследован молекулярный примесный состав высокочистой серы. Для пробоподготовки образцов использовали извлечение примесей из серы при ее вакуумной перегонке. Масса пробы серы, из которой проводили извлечение, составляла до 1 кг. Примеси конденсировали в стеклянных ампулах, из которых затем осуществляли их напуск в систему дозирования хромато-масс-спектрометра. Для их разделения использовали капиллярные адсорбционные колонки GS-GasPro с модифицированным сили­кагелем в качестве сорбента и с политриметилсилилпропином (ПТМСП). Совместное применение этих колонок позволяет определять в сере широкий круг примесных веществ. Идентификацию примесей проводили сравнением их экспериментальных масс-спектров с данными базы NIST. В случае наложения хроматографических пиков примесей их идентификацию проводили по характеристическим ионам и с использованием вычитания пиков ионов, принадлежащих соседнему компоненту. Установлено, что при использовании колонки с политриметилсилилпропином кислород- и азотсодержащие органические вещества элюируются в виде ассиметричных пиков с крутым фронтом и размытым тылом. В высокочистой сере идентифицированы примеси постоянных газов, диоксида углерода, сероводорода, диоксида серы, сероокиси углерода, предельных и непредельных углеводородов С2–С8, ароматических углеводородов, кислород-, азот-, серосодержащих веществ. Общее их число составило 51.Ключевые слова: высокочистая сера, примеси, идентификация, хромато-масс-спектрометрия, капиллярная колонкаDOI: http://dx.doi.org/10.15826/analitika.2017.21.3.00