The Health System and the Russian Orthodox Church: Prospects for Development

The article examines the participation and assistance of the Orthodox Church in solving problems that allowed to give a scientific justification for the cooperation of health care and Orthodox religious institutions, to determine their role in the historical context and structure of modern healthcare in Russia. The article presents an algorithm for organizing sisters of mercy, their system of upbringing. Particular attention is given to the possibility of teaching the course "Foundations of Orthodox Culture" in secular educational institutions. Research materials can serve as a basis for the formation of morally sound positions of medical workers and the population on the main problems of medical activity. Based on the study, the authors published a series of articles in which the experience of the work of the Orthodox Church in the charitable sphere has been summarized. This experience can be used to create new charitable institutions, including those who provided medical assistance. In preparing the article, the authors used concrete historical, civilizational, formational and social methods of research that allowed us to uncover facts, phenomena and processes in the interconnection and unity of the past, present and future

A Model of Interindustry Interaction in the USSR

A quantitative analysis of the development of interindustry flows in the Soviet economy showed that traditional input-output methods needed to be expanded and generalized for use in Soviet medium-term (5-7 year) planning. In particular, it is necessary to account for supply constraints on some products and relative surpluses of others. This paper describes a model which accounts for these influences, fits closely the development of the Soviet economy from 1950 to 1975, and can be and has been used in the exploratory stages of Soviet planning

Color Cerberus

Simple convolutional neural network was able to win ISISPA color constancy competition. Partial reimplementation of (Bianco, 2017) neural architecture would have shown even better results in this setup

Jointly Optimal Channel Pairing and Power Allocation for Multichannel Multihop Relaying

We study the problem of channel pairing and power allocation in a multichannel multihop relay network to enhance the end-to-end data rate. Both amplify-and-forward (AF) and decode-and-forward (DF) relaying strategies are considered. Given fixed power allocation to the channels, we show that channel pairing over multiple hops can be decomposed into independent pairing problems at each relay, and a sorted-SNR channel pairing strategy is sum-rate optimal, where each relay pairs its incoming and outgoing channels by their SNR order. For the joint optimization of channel pairing and power allocation under both total and individual power constraints, we show that the problem can be decoupled into two subproblems solved separately. This separation principle is established by observing the equivalence between sorting SNRs and sorting channel gains in the jointly optimal solution. It significantly reduces the computational complexity in finding the jointly optimal solution. It follows that the channel pairing problem in joint optimization can be again decomposed into independent pairing problems at each relay based on sorted channel gains. The solution for optimizing power allocation for DF relaying is also provided, as well as an asymptotically optimal solution for AF relaying. Numerical results are provided to demonstrate substantial performance gain of the jointly optimal solution over some suboptimal alternatives. It is also observed that more gain is obtained from optimal channel pairing than optimal power allocation through judiciously exploiting the variation among multiple channels. Impact of the variation of channel gain, the number of channels, and the number of hops on the performance gain is also studied through numerical examples.Comment: 15 pages. IEEE Transactions on Signal Processin

Stable monopole and dyon solutions in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter Space

A continuum of new monopole and dyon solutions in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter space are found. They are regular everywhere and specified with their mass, and non-Abelian electric and magnetic charges. A class of monopole solutions which have no node in non-Abelian magnetic fields are shown to be stable against spherically symmetric linear perturbations.Comment: 9 pages with 5 figures. Revised version. To appear in Phys Rev Let

СОВРЕМЕННЫЕ АНАЛИЗАТОРЫ ДЛЯ ОПРЕДЕЛЕНИЯ АЗОТА МЕТОДОМ КЬЕЛЬДАЛЯ

Current review covers all main stages of the quantitative determination of nitrogen by the Kjeldahl method: preparation and acid mineralization of samples, distillation, and various chemical and instrumental options for determining the ammonia released after the treatment of mineralization products with alkali. The review also describes the latest technical solutions used to improve and automate certain stages of analysis such as the usage of block and IR digesters that significantly increases the efficiency of sample mineralization and reduces its duration; the usage of automatic lifts for the mineralized samples, which reduces the work of the operator with the heavy and hot chemical samples as much as possible; the usage of autosampler, which provides the automatic transfer of mineralized samples to the distiller; the automation of distillation and titration processes; the use of software for processing the analysis results. The following technical characteristics of the basic components of automatic analyzers for the nitrogen determination by the Kjeldahl method are systematized: digesters, distillers, and titrators produced by such well-known companies as Buchi (Switzerland), C. Gerhardt, Behr Labor-Technik GmbH and FoodALYT GmbH (Germany), Foss Tecator (Denmark, Sweden), VELP Scientifica (Italy), J.P.Selecta (Spain), Hanon Instruments (China), OOO VPK Sibagropribor and OOO Vilitek (Russia). The data on the characteristics of the analyzers is also provided and includes the number and volume of test tubes (flasks), the time of mineralization, distillation and analysis, mass (volume) of the sample, and the lower limit of nitrogen detection.Keywords: Kjeldahl method, acid mineralization, distillation and quantitative determination of ammonia, automatic nitrogen analyzerDOI: http://dx.doi.org/10.15826/analitika.2019.23.2.002(Russian)E.A. Zauer, A.B. ErshovVolgograd State Technical University, pr. Lenina, 28, Volgograd, 400005,Russian FederationВ предлагаемом обзоре рассмотрены основные стадии определения азота методом Кьельдаля: подготовка и кислотная минерализация проб, отгонка и различные варианты (химические и инструментальные) определения аммиака, выделившегося после обработки продуктов минерализации щелочью. Приведены новые технические решения последних лет по совершенствованию и автоматизации отдельных стадий анализа: применение блочных и ИК-дигесторов, существенно повысивших эффективность минерализации образцов и снизивших ее длительность; использование автоматических подъемников минерализованных проб, максимально сокративших работу оператора с тяжелыми пробами и горячими химическими веществами; автосемплеров, обеспечивающих автоматическую передачу минерализованных проб в дистиллятор; автоматизация процессов дистилляции и титрования; использование программного обеспечения для обработки результатов анализа. Систематизированы технические характеристики основных узлов автоматических анализаторов для определения азота методом Кьельдаля – дигесторов, дистилляторов и титраторов, выпускаемых такими известными фирмами, как Buchi (Швейцария), C. Gerhardt, Behr Labor-Technik GmbH и FoodALYT GmbH (Германия), Foss Tecator (Дания, Швеция), VELP Scientifica (Италия), J.P.Selecta (Испания), Hanon Instruments (Китай), ООО ВПК Сибагроприбор и ООО «Вилитек» (Россия). Также приведены данные об основных аналитических характеристиках анализаторов: числе и объеме пробирок (колб), времени минерализации, дистилляции и анализа; массе (объеме) пробы, нижнем пределе обнаружения азота.Ключевые слова: метод Кьельдаля, кислотная минерализация, отгонка и определение аммиака, автоматический анализатор азотаDOI: http://dx.doi.org/10.15826/analitika.2019.23.2.00

The Evolution of NGC 7027 at Radio Frequencies: A New Determination of the Distance and Core Mass

We present the results of a 25-year program to monitor the radio flux evolution of the planetary nebula NGC7027. We find significant evolution of the spectral flux densities. The flux density at 1465 MHz, where the nebula is optically thick, is increasing at a rate of 0.251+-0.015 % per year, caused by the expansion of the ionized nebula. At frequencies where the emission is optically thin, the spectral flux density is changing at a rate of -0.145+-0.005 % per year, caused by a decrease in the number of ionizing photons coming from the central star. A distance of 980+-100 pc is derived. By fitting interpolated models of post-AGB evolution to the observed changes, we find that over the 25-yr monitoring period, the stellar temperature has increased by 3900+-900 K and the stellar bolometric luminosity has decreased by 1.75+-0.38 %. We derive a distance-independent stellar mass of 0.655+-0.01 solar masses adopting the Bloecker stellar evolution models, or about 0.04 solar masses higher when using models of Vassiliadis & Wood which may provide a better fit. A Cloudy photoionization model is used to fit all epochs at all frequencies simultaneously. The differences between the radio flux density predictions and the observed values show some time-independent residuals of typically 1 %. A possible explanation is inaccuracies in the radio flux scale of Baars et al. We propose an adjustment to the flux density scale of the primary radio flux calibrator 3C286, based on the Cloudy model of NGC7027. We also calculate precise flux densities for NGC7027 for all standard continuum bands used at the VLA, as well as for some new 30GHz experiments.Comment: submitted to the Astrophysical Journa

Monopoles, Dyons and Black Holes in the Four-Dimensional Einstein-Yang-Mills Theory

A continuum of monopole, dyon and black hole solutions exist in the Einstein-Yang-Mills theory in asymptotically anti-de Sitter space. Their structure is studied in detail. The solutions are classified by non-Abelian electric and magnetic charges and the ADM mass. The stability of the solutions which have no node in non-Abelian magnetic fields is established. There exist critical spacetime solutions which terminate at a finite radius, and have universal behavior. The moduli space of the solutions exhibits a fractal structure as the cosmological constant approaches zero.Comment: 36 Pages, 16 Figures. Minor typos corrected and one figure modifie