Fuzzy model of air dust concentration in Kyiv for PM2.5 AND PM10

Authors presents the fuzzy model of air dust concentration. The dust model allows the application of algorithms and methods of artificial intelligence. The authors have made a brief overview of simulation of dust emission in different countries and regions. Previously, fuzzy logic models were not enough use in these studies. However, these models are widely used in medicine. The authors hope that their modest contribution to fuzzy modelling of environmental problems will attract the attention of other researchers. In this work, we used the results of measurements that carried out at the meteorological stations in Kyiv. The authors’ fuzzy model makes it possible to simulation into account two channels for measuring dust: PM2.5 and PM10. It was found that in the Mamdani algorithm it is necessary to apply the “or” logic. This makes it possible to increase the influence of each channel on the negative assessment of the environment. The Mamdani algorithm in the “and” logic does not give strict restrictions on the concentration of dust in the atmospheric air for each of the measuring channels (PM2.5 and PM10) separately

FREQUENCY OF INFLAMMATORY DESEASES OF UROGENITAL REGION IN MEN WITH CHRONIC TRICHOMONIASIS INFECTION AND PATHOSPERMIA

The article presents results of the examination of 39 males with chronic trichomoniasis. Revealed a high frequency of inflammatory diseases of urogenital region: in 72 % of cases was detected chronic prostatitis, in 5 % of cases — epididymitis, in 2,5 % of cases — vesiculitis. In 62 % of men with chronic trichomoniasis was detected patospermia. This results evidence suggests a possible participation of Trichomonas vaginalis in the development inflammatory diseases of urogenital region and disorder of reproductive function of men

СОВРЕМЕННЫЙ АССОРТИМЕНТ ГЕРБИЦИДОВ ДЛЯ ЗАЩИТЫ КАПУСТЫ БЕЛОКОЧАННОЙ

The species of pests spreading in cabbage planting are listed in the article. The recommendation for the herbicides application for cabbage protection against different pests is presented. The ways of improvement of herbicides application are shown.Перечислены виды сорных растений, засоряющие посевы и посадки капусты белокочанной. Приведены рекомендации по использованию гербицидов для защиты этой культуры от разных групп сорных растений. Показано возможное направление совершенствования ассортимента гербицидов

Tunka Advanced Instrument for cosmic rays and Gamma Astronomy

The paper is a script of a lecture given at the ISAPP-Baikal summer school in 2018. The lecture gives an overview of the Tunka Advanced Instrument for cosmic rays and Gamma Astronomy (TAIGA) facility including historical introduction, description of existing and future setups, and outreach and open data activities.Comment: Lectures given at the ISAPP-Baikal Summer School 2018: Exploring the Universe through multiple messengers, 12-21 July 2018, Bol'shie Koty, Russi

SYNTHESIS OF THICK GALLIUM NITRIDE LAYERS BY METHOD OF MULTI-STAGE GROWTH ON SUBSTRATES WITH COLUMN STRUCTURE

Subject of Research.The paper deals with processes of formation and transformation of defects during multi-stage growth of thick gallium nitride layers with hydride vapor phase epitaxy on GaN/Al2O3 substrates with buried column pattern formed with the use of metal-organic vapor phase epitaxy. Methods. The growth of initial GaN layers was performed with the use of metal-organic vapor phase epitaxy. On the surface of the initial layers columns with the height of 800 nm were generated by means of ion etching. These columns were overgrown with 3-4 µm-thick GaN layers. On thus formed substrate multi-stage growth of GaN layers was performed with the use of hydride vapor-phase epitaxy. The total thickness of GaN layers was 100-1500 µm. The grown layers were studied by optical and electron microscopy and Raman spectroscopy. Main Results. Density of threading dislocations in the layers grown by hydride vapor-phase epitaxy was (3-6)·107 cm-2, that was one order of magnitude lower than in the used substrate, and two to three orders lower than dislocation density in typical GaN layers grown on commercial sapphire substrates. Raman spectroscopy data were indicative of low level of mechanical stress in the layers and their high structural uniformity. It was established that under multi-stage growth conditions, non-catastrophic cracks (those that do not cause sample destruction) are able to transform into macropores and appear to be an important structural element, serving to stress relaxation in the bulk of thick gallium nitride layers grown on foreign substrates. Practical Relevance. The results of the study can be used in the development of III-nitride heterostructures for optoelectronics and high-power and high-frequency microelectronics

Анализ клеточного состава нативной трансплантационной аутосмеси, используемой для пластики дефектов костной ткани

The cell composition of native transplant autosmes (NTA) used for bone plastics was studied. The histological examination showed the fragments of bone beams with preserved osteoblasts, the foci of myeloid and lymphoid hematopoiesis and the fibrin deposits, which suggested the presence of MMSCs. Immunophenotyping of the NTA cell population revealed a high level of expression of the surface markers CD105, CD73, and CD90 characteristic for MMSC. DNA-flow cytometry of the bone dust confirmed almost complete preservation of graft viability on the 3rd day of culturing (97.7 % of live cells). The data of this study confirm the presence of the osteogenic, osteoinductive, and osteoconductive properties of the bone dust and emphasize the importance of a further study of this-type bone graft for use in surgical interventions.Проведено исследование клеточного состава нативной трансплантационной аутосмеси (НТА), используемой для костной пластики. Гистологическое исследование показало фрагменты костных балок с сохранившимися остеобластами, очаги миелоидного и лимфоидного кроветворения и отложения фибрина, что позволило предположить наличие мультипотентных мезенхимальных стромальных клеток (ММСК). При имммунофенотипировании популяции клеток НТА выявлен высокий уровень экспрессии поверхностных маркеров CD105, CD73 и CD90, характерных для ММСК. ДНК-проточная цитофлоурометрия костной аутосмеси подтвердила практически полное сохранение жизнеспособности трансплантата на третьи сутки культивирования (97,7 % живых клеток). Полученные данные свидетельствуют о наличии у нативной трансплантационной аутосмеси остеогенных, остеоиндуктивных, остеокондуктивных свойств и обосновывают дальнейшее ее исследование с целью использования в качестве аутотрансплантата при хирургических вмешательствах

The precision of the IACT mechanical mounts of the TAIGA observatory

The TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) observatory is located in the Tunka valley (~50 km west from the southern shore of Lake Baikal) at an altitude of 675m a.s.l. The TAIGA observatory aims to address gamma-ray astronomy at energies from a few TeV to several PeV and CR physics from 100 TeV to several EeV. Its main feature is the complementary, hybrid approach to distinguish CR events from those of gamma rays. Currently TAIGA consists of ~80 wide-angle air Cherenkov detectors (HiSCORE stations), three ~4m diameter IACTs and several hundred surface and underground muon detectors, grouped in three jointly operating arrays. The exceptional feature of the TAIGA IACT array is it’s topology that allows one to aim for the optimal cost/performance by scanning the optimal inter-telescope distances from 300m up to 600m. The IACTs have alt-azimuth type mounts and 576-pixel imaging cameras in the foci, covering 9.6° aperture in the sky. The segmented reflectors of ~10m² area follow the Davis-Cotton design. The largest diameter of the hexagonal shape reflector is 4.3m and the focal length is 4.75m. The rigid telescope mount provides a maximum displacement of EAS image below 2mm (i.e. ≤ 0.024°) in the photodetector plane. The main parameters of IACTs are of a crucial importance for their efficient operation and is presented

Method of Separation Between Light and Heavy Groups of Primary CR Nuclei by LDF of Cherenkov Light in the Range 300–3000 TeV

The problem of chemical composition below the knee in the cosmic-ray energy spectrum has not yet been solved due to low statistics collected from direct experiments. In the HiSCORE experiment the lateral distribution functions (LDF) of Cherenkov light of EASs with energy greater than hundreds of TeV can be measured in detail for millions of individual events. A full steepness of LDF is sensitive to the depth of shower maximum and as a result to primary particle type. In this paper, we developed a parametric method of separation between heavy and light groups of nuclei using the ’knee-like’ approximation of LDF and taking into account measurement uncertainty

Geospatial data analysis in Russia’s geoweb

The chapter examines the role of geospatial data in Russia’s online ecosystem. Facilitated by the rise of geographic information systems and user-generated content, the distribution of geospatial data has blurred the line between physical spaces and their virtual representations. The chapter discusses different sources of these data available for Digital Russian Studies (e.g., social data and crowdsourced databases) together with the novel techniques for extracting geolocation from various data formats (e.g., textual documents and images). It also scrutinizes different ways of using these data, varying from mapping the spatial distribution of social and political phenomena to investigating the use of geotag data for cultural practices’ digitization to exploring the use of geoweb for narrating individual and collective identities online

First results of the tracking system calibration of the TAIGA-IACT telescope

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