893 research outputs found

    Sensitivities of Low Energy Reactor Neutrino Experiments

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    The low energy part of the reactor neutrino spectra has not been experimentally measured. Its uncertainties limit the sensitivities in certain reactor neutrino experiments. The origin of these uncertainties are discussed, and the effects on measurements of neutrino interactions with electrons and nuclei are studied. Comparisons are made with existing results. In particular, the discrepancies between previous measurements with Standard Model expectations can be explained by an under-estimation of the low energy reactor neutrino spectra. To optimize the experimental sensitivities, measurements for \nuebar-e cross-sections should focus on events with large (>>1.5 MeV) recoil energy while those for neutrino magnetic moment searches should be based on events <<100 keV. The merits and attainable accuracies for neutrino-electron scattering experiments using artificial neutrino sources are discussed.Comment: 25 pages, 9 figure

    Санкции против России: эффективность и влияние на национальную безопасность России

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    The current stage of development of the entire world community, including Russia, is associated with such a thing as “sanction wars”. As an example, one can recall the introduction of US sanctions against China, Iran, Venezuela, and other countries, European sanctions, as well as various countersanctions of countries subjected to sanction pressure.As part of this paper, the sanctions imposed against Russia in connection with the Ukrainian crisis in 2014 and countersanctions imposed by Russia are considered. The purpose of this study is to identify the impact of sanctions and countersanctions on the national security of Russia. In this regard, the following tasks were set: to identify the list of sanctions of Western countries imposed against Russia and their impact on the national security of Russia, to identify the list of countersanctions of Russia against Western countries and their impact on the national security of Russia, to identify further actions of Russia to ensure the national security of Russia under the conditions of sanction pressure.The study is based on the dialectical, historical and systematic approach, analysis, synthesis and comparison, induction and deduction. The study analyzed Russian and international literature on&nbsp;the topic of sanctions and their impact on national security.Based on the results of the study, the directions of economic development based on the promotion of import substitution, innovation and public-private partnerships with the aim of ensuring the national security of Russia under the conditions of sanction pressure have been proposed. The findings of the study may be of interest to the academic community, studying the impact of sanctions on the national security of the country. The experience of Russia may be of interest to countries subjected to sanction pressure from the United States and its allies.La etapa actual de desarrollo de toda la comunidad mundial, incluida Rusia, está asociada con cosas como "guerras de sanciones", por ejemplo, podemos recordar la introducción de sanciones de Estados Unidos contra China, Irán, Venezuela y otros países, sanciones europeas, así como varios países. sometido a presión de sanción. Como parte de este artículo, se consideran las sanciones impuestas contra Rusia en relación con la crisis ucraniana en 2014 y las sanciones contrarias impuestas por Rusia. El propósito de este estudio es determinar el impacto de las sanciones y contra-sanciones en la seguridad nacional de Rusia. En este sentido, se establecieron las siguientes tareas: determinar la lista de sanciones de los países occidentales impuestas contra Rusia, y su impacto en la seguridad nacional de Rusia, determinar la lista de contra-sanciones de Rusia contra los países occidentales y su impacto en la seguridad nacional de Rusia, para determinar acciones adicionales de Rusia para garantizar la seguridad nacional de Rusia bajo condiciones de presión de sanción. El estudio se basa en un enfoque dialéctico, histórico y sistemático, análisis, síntesis y comparación, inducción y deducción. El estudio analizó la literatura rusa e internacional sobre el tema de las sanciones y su impacto en la seguridad nacional. Sobre la base de los resultados del estudio, se proponen las direcciones del desarrollo económico basadas en la promoción de la sustitución de importaciones, la innovación y las asociaciones público-privadas con el objetivo de garantizar la seguridad nacional de Rusia en condiciones de presión de sanción. Los hallazgos del estudio pueden ser de interés para la comunidad científica, al estudiar el impacto de las sanciones en la seguridad nacional del país, la experiencia de Rusia puede ser de interés para los países sujetos a la presión de las sanciones de los Estados Unidos y sus aliados.современный этап развития всего мирового сообщества, в том числе России, связан с таким явлением как «санкционные войны», в качестве примера можно вспомнить введение санкции США против Китая, Ирана, Венесуэлы и других стран, европейские санкции, а также различные контрсанкции стран, подвергшихся санкционному давлению.В рамках данной статьи рассмотрены санкции, введенные против России в связи с украинским кризисом в 2014 году, и контрсанкции введенные Россией. Целью данного исследования является определение влияния санкций и контрсанкций на национальную безопасность России. В этой связи были поставлены следующие задачи: определить перечень санкции западных стран, введенных против России, и их влияние на национальную безопасность России, определить перечень контрсанкций России против западных стран и их влияние на национальную безопасность России, определить дальнейшее действия России по обеспечению национальной безопасности России в условиях санкционного давления.Исследование основано на диалектическом, историческом и системном подходе, анализе,&nbsp;синтезе и сравнении, индукции и дедукции. В исследовании проанализирована российская и международная литература на тему санкций и их влияния на национальную безопасность.По итогам исследования предложены направления экономического развития, основанные на стимулировании импортозамещения, инноваций и государственно-частного партнерства с целью обеспечения национальной безопасности России в условиях санкционного давления. Выводы, полученные в ходе исследования, могут быть интересны научному сообществу, изучающие влияние санкций на национальную безопасность страны, опыт России может быть интересен странам, подвергшимся санкционному давлению США и их союзников

    Remote device access in the new accelerator controls middleware

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    This paper presents the Remote Device Access (RDA) package developed at CERN in the framework of the joint PS/SL Controls Middleware project. The package design reflects the Accelerator Device Model in which devices, named entities in the control system, can be controlled via properties. RDA implements this model in a distributed environment with devices residing in servers that can run anywhere in the controls network. It provides a location-independent and reliable access to the devices from control programs. By invoking the device access methods, clients can read, write and subscribe to device property values. We describe the architecture and design of RDA its API, and CORBA-based implementations in Java and C++. First applications of RDA in the CERN accelerator control systems are described as well

    Photoconductivity of CdS-CdSe granular films: influence of microstructure

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    We study experimentally the photoconductivity of CdS-CdSe sintered granular films obtained by the screen printing method. We mostly focus on the dependences of photoconductivity on film's microstructure, which varies with changing heat-treatment conditions. The maximum photoconductivity is found for samples with compact packing of individual grains, which nevertheless are separated by gaps. Such a microstructure is typical for films heat-treated during an intermediate (optimal) time. In order to understand whether the dominant mechanism of charge transfer is identical with the one in monocrystals, we perform temperature measurements of photoresistance. Corresponding curves have the same peculiar nonmonotonic shape as in CdSe monocrystals, from which we conclude that the basic mechanism is also the same. It is suggested that the optimal heat-treatment time appears as a result of a competition between two mechanisms: improvement of film's connectivity and its oxidation. Photoresistance is also measured in vacuum and in helium atmosphere, which suppress oxygen and water absorption/chemisorption at intergrain boundaries. We demonstrate that this suppression increases photoconductivity, especially at high temperatures.Comment: 12 pages, 8 figures, final versio

    Molecular-genetic aspects of the endometrium state on the day of the tentative implantation window in women with recurrent miscarriage in the programs of assisted reproductive technologies

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    Golovatyuk K. P., Nosenko O. M., Makshayeva E. T., Trofimov D. Yu., Donnikov A. E., Kolin V. V. Molecular-genetic aspects of the endometrium state on the day of the tentative implantation window in women with recurrent miscarriage in the programs of assisted reproductive technologies. Journal of Education, Health and Sport. 2017;7(9):621-626. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1068361 http://ojs.ukw.edu.pl/index.php/johs/article/view/5076 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 1223 (26.01.2017). 1223 Journal of Education, Health and Sport eISSN 2391-8306 7 © The Authors 2017; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open 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/4.0/) 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/4.0/) which permits unrestricted, non commercial use, 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: 15.08.2017. Revised: 20.09.2017. Accepted: 29.09.2017. MOLECULAR-GENETIC ASPECTS OF THE ENDOMETRIUM STATE ON THE DAY OF THE tentative IMPLANTATION WINDOW IN WOMEN WITH recurrent miscarriage IN THE PROGRAMS OF ASSISTED REPRODUCTIVE TECHNOLOGIES 1K. P. Golovatyuk, 2O. M. Nosenko, 1E. T. Makshayeva, 3D. Yu. Trofimov, 4A. E. Donnikov, 3V. V. Kolin 1Limited Liability Company Medical Center for Reproductive Health "Gameta", Odessa, Ukraine; 2Odessa National Medical University, Ukraine; 3Limited Liability Company "NPF DNA-Technology", Moscow, Russia; 4FGBU Scientific Center for Obstetrics, Gynecology and Perinatology. named after acad. V.I. Kulakov Ministry of Health care and Social Development of Russia, Moscow, Russia; e-mail: [email protected] Abstract More than 50% of pregnant women after the programs of assisted reproductive technologies (ART) face the problem of recurrent miscarriage (RMC), especially in the first trimester. Significant role in the development of RMC has infectious factor and chronic inflammation in the endometrium. The aim: to reveal the peculiarities of immune response mRNA genes of the inflammatory component expression in the period of the tentative implantation window (TIW) in women with RMC in ART programs. Material and methods. The main group consisted of 240 patients with RMC in ART programs; the control group included 100 conditionally healthy fertile women. On the ground of PCR reverse transcription, the mRNA of the IL-1β, IL-2, IL-10, Foxp3, TLR9, IL-2Rα cytokine genes was examined in endometrial samples obtained with the help of biopsy on the TIW day. Results. Analysis of the transcriptional profile of the immune response genes in the endometrium on TIW day revealed that the relative level of mRNA expression of the IL-1β, IL-2, Foxp3, TLR9, IL-2Rα genes did not differ significantly in the main and control groups. Statistically significant decrease in mRNA expression of IL-10 gene was observed in women with RPL. Conclusions. A feature of mRNA expression of the inflammatory component of the immune response in TIW period in women with RMC in ART programs is a decrease in the expression level of the IL-10 gene mRNA, which may be one of the reasons for the unfavorable outcomes of the onset pregnancy. Key words: recurrent miscarriage, assisted reproductive technologies, immune response, reverse transcription-polymerase chain reaction, tentative implantation window

    Heart rate variabilitymeasurement using a smartphone camera

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    In this article authors conduct a research targeting a possibilities of heart rate variability (HRV) measurement using smartphone camera. Factors strongly influencing the photoplethysmogram signal registered with smartphone camera are described. An algorithm for HRV signal measurement using photoplethysmogram is proposed. In order to perform simultaneous photoplethysmogram and electrocardiogram registration an experiment has been settled. Comparative analysis between HRV signals measured from photoplethysmogram and electrocardiogram is performed. Relying on such analysis quantitative estimates of quality of HRV signal measured from photoplethysmogram have been acquired. Demonstrated that proposed method has high accuracy. Results of this research will be used while developing an application that is capable of processing HRV signals in real time mode.В статье представлены результаты исследования возможности измерения вариабельности сердечного ритма (ВСР) при помощи камеры смартфона. Рассмотрены факторы, оказывающие сильное влияние на сигнал при регистрации фотоплетизмограммы с использованием камеры смартфона. Предложен алгоритм измерения сигнала ВСР по данным фотоплетизмограммы позволяет существенно уменьшить влияние описанных факторов, искажающих сигнал. Поставлен эксперимент, в ходе которого производилась одновременная регистрация фотоплетизмограммы (ФПГ) с использованием камеры смартфона и специального разработанного программного обеспечения, и электрокардиограммы (ЭКГ) с использованием электроэнцефалографа-анализатора. Проведен сравнительный анализ полученных сигналов ВСР ФПГ с данными измерений ВСР ЭКГ. По результатам сравнительного анализа приведены количественные оценки качества получаемого сигнала ВСР ФПГ. Показано, что предложенный алгоритм обработки ВСР ФПГ имеет высокую точность. Результаты исследования будут использованы при создании приложения, способного регистрировать и обрабатывать сигналы ВСР ФПГ в режиме реального времени

    Problem Issues of Providing Modern Higher Medical Education to Future Specialists and Ways to Overcome them

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    Modern medical education requires the formation of a qualitatively new approach to the educational process, which will be based on the formation and development of clinical thinking, taking into account the psychological characteristics of modern youth. The "clip" way of working with information adds dynamism to the cognitive learning activity, which allows you to have time to complete the necessary tasks, sometimes even formally, in the conditions of a growing volume of educational material. "Clip" behavior allows you to see multifaceted, multivariate, ambiguous approaches to analysis or solving specific issues and tasks (such thinking helps the audience to better realize and understand the most diverse connections between phenomena and events). However, the negative consequences of this process cannot be neglected. The construction of the educational process in accordance with the needs of the educational program must take into account its own tasks against the background of progressive changes in the thinking of young people. The obtained results coincide with those that the professional training of students who are just mastering the basic disciplines and interns who have completed the basic training course gives similar, but at the same time, different data of the same survey. It is not possible to definitively determine in which group the level of "clip thinking" prevails. However, this fact indicates the irreversibility of changes in the "new thinking", which should be taken into account in teaching activities. The motivation of the professional choice of young people at the stage of admission to higher education is far from awareness. When choosing a future specialty, the generation of millennials mostly relies on the authority of their parents and the prestige of the specialty. The motivation to start becoming a specialist not at the clinical departments, but at the very initial stages of training is not effective enough due to the lack of interest of the teachers of the departments of basic disciplines. The motivation for professional choice when studying at clinical departments cannot be limited to a specific educational program. It is necessary to encourage students to work in student professional circles and professional societies, to elements of scientific work, etc. Multimedia technologies immeasurably expand opportunities in the organization and management of educational activities and allow the practical realization of the great potential of promising methodical developments within traditional education, which were previously ineffective

    The study of the negative pion production in neutron-proton collisions at beam momenta below 1.8 GeV/c

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    A detailed investigation of the reaction np -> pp\pi^{-} has been carried out using the data obtained with the continuous neutron beam produced by charge exchange scattering of protons off a deuterium target. A partial wave event-by-event based maximum likelihood analysis was applied to determine contributions of different partial waves to the pion production process. The combined analysis of the np -> pp\pi^{-} and pp -> pp\pi^{0} data measured in the same energy region allows us to determine the contribution of isoscalar partial waves (I=0) in the momentum range from 1.1 up to 1.8 GeV/c. The decay of isoscalar partial waves into (^1S_0)_{pp}\pi$ channel provides a good tool for a determination of the pp S-wave scalar scattering length in the final state which was found to be a_{pp}=-7.5\pm 0.3 fm.Comment: 6 pages, 6 figure
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