Study of Scintillator Strip with Wavelength Shifting Fiber and Silicon Photomultiplier

The performance of the $200\times2.5\times1$ cm$^3$ plastic scintillator strip with wavelength shifting fiber read-out by two novel photodetectors called Silicon PhotoMultipliers (SiPMs) is discussed. The advantages of SiPM relative to the traditional multichannel photomultiplier are shown. Light yield and light attenuation measurements are presented. This technique can be used in muon or calorimeter systems.Comment: 9 pages, 5 figure

Electrical conductivity of rocks at high pressures and temperatures

The results of studies of the electrical conductivity in the most widely distributed types of igneous rocks, at temperatures of up to 1200 C, at atmospheric pressure, and also at temperatures of up to 700 C and at pressures of up to 20,000 kg/sq cm are described. The figures of electrical conductivity, of activaation energy and of the preexponential coefficient are presented and the dependence of these parameters on the petrochemical parameters of the rocks are reviewed. The possible electrical conductivities for the depository, granite and basalt layers of the Earth's crust and of the upper mantle are presented, as well as the electrical conductivity distribution to the depth of 200 to 240 km for different geological structures

Inclusive Gluon Production In High Energy Onium-Onium Scattering

We calculate the inclusive single-gluon production cross section in high energy onium-onium scattering including pomeron loop effects. The resulting inclusive cross section is given by the k_T-factorization formula with one of the unintegrated gluon distribution functions depending on the total onium-onium scattering cross section, which includes all pomeron loops and has to be found independently. We discuss the limits of applicability of our result and argue that they are given by the limits of applicability of pomeron loop resummation approach. Since the obtained k_T-factorization formula is infrared divergent we conclude that, in order to consistently calculate the (infrared-finite) gluon production cross section in onium-onium scattering, one has to include corrections going beyond the pomeron loop approximation.Comment: 20 pages, 6 figures; v2: version accepted to Phys. Rev. D, minor corrections include

On the possibility to obtain manganese concentrate from manganese-containing tailings

The paper presents the results of studies intended to separate minerals by density in a heavy liquid. Chemical analysis found that the manganese content amounts to 16,32 % in the studied sludge sample. Manganese sludge was separated by specific gravity in M-45 heavy liquid (the aqueous solution of a complex salt of barium iodides and cadmium with a density of 3 000 kg/m3). The tailings sample was fractioned by specific gravity in the material with a particle size of -2,5 + 1,0 mm; -1,0 + 0,5 mm and -0,5 + 0 mm. The manganese content in the heavy fraction of 3 000 kg/m3 was 32,5 %. The manganese content in the light fraction varied from 1,7 to 2,5 %. Light fractions were represented by aggregates of quartz and calcite with manganese minerals. According to X-ray phase analysis, heavy fractions were mainly represented by minerals braunite, bixbyite, barite and hematite

On the possibility to obtain manganese concentrate from manganese-containing tailings

The paper presents the results of studies intended to separate minerals by density in a heavy liquid. Chemical analysis found that the manganese content amounts to 16,32 % in the studied sludge sample. Manganese sludge was separated by specific gravity in M-45 heavy liquid (the aqueous solution of a complex salt of barium iodides and cadmium with a density of 3 000 kg/m3). The tailings sample was fractioned by specific gravity in the material with a particle size of -2,5 + 1,0 mm; -1,0 + 0,5 mm and -0,5 + 0 mm. The manganese content in the heavy fraction of 3 000 kg/m3 was 32,5 %. The manganese content in the light fraction varied from 1,7 to 2,5 %. Light fractions were represented by aggregates of quartz and calcite with manganese minerals. According to X-ray phase analysis, heavy fractions were mainly represented by minerals braunite, bixbyite, barite and hematite

Изменения цитокинового профиля крови при экспериментальном диффузном кардиосклерозе у крыс с различной устойчивостью к гипоксии = Changes of cytokine blood profile in experimental diffuse cardiosclerosis in rats with different resistance to hypoxia

Saturska H. S., Bondarenko Yu. I., Pelykh V. E. Изменения цитокинового профиля крови при экспериментальном диффузном кардиосклерозе у крыс с различной устойчивостью к гипоксии = Changes of cytokine blood profile in experimental diffuse cardiosclerosis in rats with different resistance to hypoxia. Journal of Education, Health and Sport. 2015;5(2):66-78. ISSN 2391-8306. DOI: 10.5281/zenodo.15412http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%282%29%3A66-78https://pbn.nauka.gov.pl/works/536525http://dx.doi.org/10.5281/zenodo.15412Formerly Journal of Health Sciences. ISSN 1429-9623 / 2300-665X. Archives 2011 – 2014 http://journal.rsw.edu.pl/index.php/JHS/issue/archive Deklaracja.Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie.Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r.The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014).© The Author (s) 2015;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 20.10.2014. Revised 18.01.2015. Accepted: 25.01.2015. УДК 616.12-004-097-02:616.152.21]-092.9UDC 616.12-004-097-02:616.152.21]-092.9ИЗМЕНЕНИЯ ЦИТОКИНОВОГО ПРОФИЛЯ КРОВИ ПРИ ЭКСПЕРИМЕНТАЛЬНОМ ДИФФУЗНОМ КАРДИОСКЛЕРОЗЕ У КРЫС С РАЗЛИЧНОЙ УСТОЙЧИВОСТЬЮ К ГИПОКСИИ Changes of cytokine blood profile in experimental diffuse cardiosclerosis in rats with different resistance to hypoxia Сатурская А. С., Бондаренко Ю. И., Пелых В. Е.Saturska H. S., Bondarenko Yu. I., Pelykh V. E.ГВУЗ «Тернопольский государственный медицинский университет имени И.Я. Горбачевского МЗ Украины», г. ТернопольSHEI “I. Horbachevsky Ternopil State Medical University of the Ministry of Public Health of Ukraine”, Ternopil, [email protected] Ключевые слова: гипоксия, диффузный кардиосклероз, цитокины. Key words: hypoxia, diffuse myocardial fibrosis, cytokines. Резюме В работе изложены особенности изменений цитокинового статуса в динамике развития экспериментального кардиосклероза у лабораторных животных (белых крыс) с различной устойчивостью к гипоксии на этапах моделирования данной патологии (7, 14, 30 суток наблюдения). Выявлено, что развитие кардиосклеротического процесса сопровождается различным по степени повышением синтеза цитокинов – ИЛ-1β, ИЛ-6 в зависимости от чувствительности животных к гипоксии, а также от периода наблюдения. Особенностями реакции противовоспалительного звена на моделирование диффузного кардиосклероза является повышение содержания ИЛ-10 на всех этапах развития патологии, за исключением низкоустойчивых к гипоксии животных, у которых содержание ИЛ-10 немного снижено. Abstract The article presents peculiarities of changes of cytokine status in the dynamics of experimental cardiosclerosis in laboratory animals (white rats) with different resistance to hypoxia at stages of modeling of the disease (7, 14, 30 days of observation). It has been discovered that the development of experimental diffuse ischemic necrotic cardiosclerosis is accompanied by different degrees of increase of synthesis of IL-1β and IL-6 cytokines in blood serum depending on the sensitivity of animals to hypoxia and on the observation period.Increased level of IL-10 inblood serum in animals with high and medium resistance to hypoxia at all stages of the disease, and decreased level of IL-10 inblood serum in animals with low resistance to hypoxia are the main peculiarities of an anti-inflammatory response due to diffuse cardiosclerosis modeling

Processing of low quality ekibastuz coals ashes and natural diatomites to obtain alumina and foamed glass

Analysis of technological solutions on complex processing Ekibastuz coals ashes displays efficiency of complex alkaline technologies. However their significant drawback is the necessity to utilize big volumes of alkaline-silicic solutions. This research demonstrates possibility of their rational utilization by using natural raw diatomites to obtain formed and pelleted foamed glass widely used in construction industry as a heat-insulating material. Based on the data from scientific literature and their own research the authors suggest an improved scheme of complex processing Ekibastuz coals ashes

Obtaining of strong chromium pellets with the use of a ferrosilicon-calcium binder

The article presents the results of research on the synthesis of strong chrome pellets based on concentrates obtained by enrichment of chrome sludge. To obtain strong fired pellets from the concentrates, it is proposed to use a ferrosilico- calcium reagent as a binder, which makes it possible to increase the strength of the pellets by 2-3 times in comparison with the technology operating at “Donskoy Ore Mining and Processing Plant”. This excludes the supply of fluxing reagents during electric arc smelting of raw materials to high-carbon ferrochrome. Pellets from concentrates obtained during the processing of tailings from the Dubersay sludge storage have increased strength up to 5 330 N/pellet at a roasting temperature of 1 200 °C