INCREASING THE LEVEL OF PHYSICAL AND MECHANICAL PROPERTIES OF COLD-ROLLED STEEL OF THE BRAND DC01 IN ORDER TO ENSURE ITS REQUIREMENTS EN 10130 IN THE CONDITIONS OF PJSC "ZAPORIZHSTAL"

Increasing the level of physical and mechanical properties of cold- rolled steel

Relationship between tinnitus pitch and edge of hearing loss in individuals with a narrow tinnitus bandwidth

Objective: Psychoacoustic measures of tinnitus, in particular dominant tinnitus pitch and its relationship to the shape of the audiogram, are important in determining and verifying pathophysiological mechanisms of the condition. Our previous study postulated that this relationship might vary between different groups of people with tinnitus. For a small subset of participants with narrow tinnitus bandwidth, pitch was associated with the audiometric edge, consistent with the tonotopic reorganization theory. The current study objective was to establish this relationship in an independent sample. Design: This was a retrospective design using data from five studies conducted between 2008 and 2013. Study sample: From a cohort of 380 participants, a subgroup group of 129 with narrow tinnitus bandwidth were selected. Results: Tinnitus pitch generally fell within the area of hearing loss. There was a statistically significant correlation between dominant tinnitus pitch and edge frequency; higher edge frequency being associated with higher dominant tinnitus pitch. However, similar to our previous study, for the majority of participants pitch was more than an octave above the edge frequency. Conclusions: The findings did not support our prediction and are therefore not consistent with the reorganization theory postulating tinnitus pitch to correspond to the audiometric edge

Formación de la interacción social competencia de futuros especialistas del ámbito gerencial

Trends in the economic situation development in the Russian Federation determine the basic requirements for graduates of Russian universities in the direction of “management” training, whose professional competence depends directly on the level of mastering communication skills and social interaction skills. The social interaction competence for managers is the key one in the formation of professional competencies and affects the decision-making of many professional tasks. The social interaction competence plays an important role in the management personnel training because they have a need for constant interaction with people, staff and clients. Lack of social interaction competence can lead to failures in professional activities. Thus, the bachelor of management should have not only knowledge in the professional sphere, but also be able to interact with various specialists, clients, and partners, carrying out high-level social communication that can affect effectively the result of professional activity.Las tendencias en el desarrollo de la situación económica en la Federación de Rusia determinan los requisitos básicos para los graduados de las universidades rusas en la dirección de la formación de “gestión”, cuya competencia profesional depende directamente del nivel de dominio de las habilidades de comunicación y de interacción social. La competencia de interacción social para los gerentes es la clave en la formación de competencias profesionales y afecta la toma de decisiones de muchas tareas profesionales. La competencia de interacción social juega un papel importante en la capacitación del personal de gestión, ya que tienen una necesidad de interacción constante con las personas, el personal y los clientes. La falta de competencia de interacción social puede conducir a fallas en las actividades profesionales. Por lo tanto, el licenciado en administración debe tener no solo conocimiento en el ámbito profesional, sino también poder interactuar con varios especialistas, clientes y socios, llevando a cabo una comunicación social de alto nivel que pueda afectar de manera efectiva el resultado de la actividad profesional

Low temperature breakdown of coherent tunneling in amorphous solids induced by the nuclear quadrupole interaction

We consider the effect of the internal nuclear quadrupole interaction on quantum tunneling in complex multi-atomic two-level systems. Two distinct regimes of strong and weak interactions are found. The regimes depend on the relationship between a characteristic energy of the nuclear quadrupole interaction $\lambda_{\ast}$ and a bare tunneling coupling strength $\Delta_{0}$. When $\Delta_{0}>\lambda_{\ast}$, the internal interaction is negligible and tunneling remains coherent determined by $\Delta_{0}$. When $\Delta_{0}<\lambda_{\ast}$, coherent tunneling breaks down and an effective tunneling amplitude decreases by an exponentially small overlap factor $\eta^{\ast}\ll1$ between internal ground states of left and right wells of a tunneling system. This affects thermal and kinetic properties of tunneling systems at low temperatures $T<\lambda_{*}$. The theory is applied for interpreting the anomalous behavior of the resonant dielectric susceptibility in amorphous solids at low temperatures $T\leq 5$mK where the nuclear quadrupole interaction breaks down coherent tunneling. We suggest the experiments with external magnetic fields to test our predictions and to clarify the internal structure of tunneling systems in amorphous solids.Comment: To appear in the Physical Review

Projectile fragmentation at Fermi energies with transport simulations

Projectile fragmentation at Fermi energies is an important method to produce radioactive beams for the study of isospin asymmetric nuclear matter. Fragmentation is usually parametrized successfully by empirical phase space models. In this contribution we apply a microscopical method, semiclassical transport theory, to study in detail the reaction mechanism of the fragmentation process. We apply it to experimental data of 18O on 181Ta at E/A = 35 MeV measured in Dubna. We calculate consistently the excitation energy of the primary fragments and take into account their decay by a statistical model. It is found that the dissipative part of the fragment spectra is well described by transport theory. However, there are in addition important direct and collective contributions

Genes encoding transcription factors TaDREB5 and TaNFYC-A7 are differentially expressed in leaves of bread wheat in response to drought, dehydration and ABA

Two groups of six spring bread wheat varieties with either high or low grain yield under the dry conditions of Central and Northern Kazakhstan were selected for analysis. Experiments were set up with the selected wheat varieties in controlled environments as follows: (1) slowly progressing drought imposed on plants in soil, (2) rapid dehydration of whole plants grown in hydroponics, (3) dehydration of detached leaves, and (4) ABA treatment of whole plants grown in hydroponics. Representatives of two different families of transcription factors (TFs), TaDREB5 and TaNFYC-A7, were found to be linked to yield-under-drought using polymorphic Amplifluor-like SNP marker assays. qRT-PCR revealed differing patterns of expression of these genes in the leaves of plants subjected to the above treatments. Under drought, TaDREB5 was significantly up-regulated in leaves of all high-yielding varieties tested and down-regulated in all low-yielding varieties, and the level of expression was independent of treatment type. In contrast, TaNFYC-A7 expression levels showed different responses in the high- and low-yield groups of wheat varieties. TaNFYC-A7 expression under dehydration (treatments 2 and 3) was higher than under drought (treatment 1) in all high-yielding varieties tested, while in all low-yielding varieties the opposite pattern was observed: the expression levels of this gene under drought were higher than under dehydration. Rapid dehydration of detached leaves and intact wheat plants grown in hydroponics produced similar changes in gene expression. ABA treatment of whole plants caused rapid stomatal closure and a rise in the transcript level of both genes during the first 30 min, which decreased 6 h after treatment. At this time-point, expression of TaNFYC-A7 was again significantly up-regulated compared to untreated controls, while TaDREB5 returned to its initial level of expression. These findings reveal significant differences in the transcriptional regulation of two drought-responsive and ABA-dependent TFs under slowly developing drought and rapid dehydration of wheat plants. The results obtained suggest that correlation between grain yield in dry conditions and TaNFYC-A7 expression levels in the examined wheat varieties is dependent on the length of drought development and/or strength of drought; while in the case of TaDREB5, no such dependence is observed.Lyudmila Zotova, Akhylbek Kurishbayev, Satyvaldy Jatayev, Gulmira Khassanova, Askar Zhubatkanov, Dauren Serikbay, Sergey Sereda, Tatiana Sereda, Vladimir Shvidchenko, Sergiy Lopato, Colin Jenkins, Kathleen Soole, Peter Langridge, and Yuri Shavruko

Effect of Nuclear Quadrupole Interaction on the Relaxation in Amorphous Solids

Recently it has been experimentally demonstrated that certain glasses display an unexpected magnetic field dependence of the dielectric constant. In particular, the echo technique experiments have shown that the echo amplitude depends on the magnetic field. The analysis of these experiments results in the conclusion that the effect seems to be related to the nuclear degrees of freedom of tunneling systems. The interactions of a nuclear quadrupole electrical moment with the crystal field and of a nuclear magnetic moment with magnetic field transform the two-level tunneling systems inherent in amorphous dielectrics into many-level tunneling systems. The fact that these features show up at temperatures $T<100mK$, where the properties of amorphous materials are governed by the long-range $R^{-3}$ interaction between tunneling systems, suggests that this interaction is responsible for the magnetic field dependent relaxation. We have developed a theory of many-body relaxation in an ensemble of interacting many-level tunneling systems and show that the relaxation rate is controlled by the magnetic field. The results obtained correlate with the available experimental data. Our approach strongly supports the idea that the nuclear quadrupole interaction is just the key for understanding the unusual behavior of glasses in a magnetic field.Comment: 18 pages, 9 figure

Проблемы оптимизации энергопотребления домохозяйств в задачах повышения энергоэффективности жилищного сектора

The aim of the work is to study the problem of optimizing energy consumption and practical application of methods for  improving energy efficiency in the housing sector. Optimization of  energy efficiency management allows to reduce the expenditure of  energy resources in the performance of various works, heating of buildings, etc. The creation of optimization methods will make it  possible to reduce payments for utilities in a short time, and in  general for the industry, will help reduce the consumption of various  resources and improve the ecological state of the region. Unlike  other approaches, the emphasis in this paper is on the convenience  and simplicity necessary for using this technique by the population in households. The proposed integrated approach uses methods of  probability theory, linear programming, heat exchange models. The  conducted research confirms the effectiveness of the solution  obtained and can serve as a basis for the creation of training and  research stands. The article consists of two parts: the first part  analyzes the leading works in this field and identifies the reasons  that make it difficult to apply the solutions proposed in these papers. Further, the statement of the problem was proposed and justified,  and a number of basic requirements to the mathematical model of  energy consumption, necessary for the constructed technique to be  used to optimize energy consumption in households, were  formulated. In the second part, a mathematical model of their  functioning is proposed using examples of specific household  electrical appliances. When researching existing methods for  optimizing energy consumption in households, problems were  identified that were difficult to apply these methods in practice and  recommendations were obtained that allowed to formulate the basic  principles of constructing an optimization technique that was  convenient for practical application. It was shown that when  constructing such a technique, the primary question is the data that  the user can provide. The minimum composition of input data was  determined, according to which the necessary algorithms for  optimizing energy consumption were designed. A number of  algorithms for determining some input indicators that are easy to use in households have also been proposed. Thus, the general plan of research in this paper is as follows:• carry out grouping of devices by the way of setting functionalrequirements;• determine the acceptable composition and type of input data forthe user;• define the minimum set of input data for formalizing the limitationof the total power consumption;• design optimization algorithms that work with the input dataspecified above. The most important results of the work performed are the following:• the methodology for forecasting the graph of the maximum totalpower consumption has been developed.• methods for optimizing energy consumption for each of the selected subsets of household appliances have been developed.• the optimization algorithms obtained have been simulated, which showed their operability, efficiency and the possibility of their practical application without any adaptation.Thus, the article proposes the solution of the problem of optimization of energy consumption in the housing sector, oriented to practical application.Целью работы является исследование проблемы оптимизации энергопотребления и  практического применения методов повышения энергоэффективности в жилищном секторе.  Оптимизация управления энергоэффективностью позволяет уменьшать расходование  энергоресурсов при выполнении различных работ, отопление зданий и т.д. Создание  методов оптимизации позволит в короткие сроки снизить платежи за коммунальные услуги,  а в целом для отрасли, будет способствовать уменьшению потребления различных ресурсов  и улучшению экологического состояния региона. В отличии от других подходов, акцент в  данной работе ставится на удобство и простоту, необходимую для использования этой  методики населением в домашних хозяйствах. В предложенном комплексном подходе  используются методы теории вероятностей, линейного программирования, модели теплообмена. Проведенное исследование подтверждает эффективность полученного  решения и может служить основой для создания учебно-исследовательских стендов. Статья  состоит из двух частей: в первой части выполнен анализ ведущих работ в этой тематике и  определены причины, затрудняющие массовое применение предлагаемых в этих работах  решений. Далее предложена и обоснована постановка задачи и сформулирован ряд  основных требований к математической модели энергопотребления, необходимых для того, чтобы сконструированную методику можно было применять для оптимизации  энергопотребления в домашних хозяйствах. Во второй части на примерах конкретных  бытовых электроприборов предлагается математическая модель их функционирования. При  исследовании существующих методов оптимизации энергопотребления в домохозяйствах  были выявлены проблемы, заключающиеся в сложности применения этих методов на практике и получены рекомендации, позволяющие сформулировать основные принципы  построения методики оптимизации, удобной для практического применения. Было показано, что при построении такой методики первичным является вопрос о данных, которые может  предоставить пользователь. Был определен минимальный состав входных данных, по которым сконструированы необходимые алгоритмы оптимизации энергопотребления. Так же был предложен ряд алгоритмов определения некоторых входных показателей, которые  легко использовать в домашних хозяйствах. Таким образом, общий план исследований в  данной работе заключается в следующем:• провести группировку приборов по способу задания функциональных требований;• выяснить приемлемый для пользователя состав и вид входных данных;• определить минимальный набор входных данных для формализации ограничения суммарной потребляемой мощности;• сконструировать алгоритмы оптимизации, работающие с указанными выше входными данными.Важнейшими результатами выполненной работы являются следующие:• разработана методика прогнозирования графика максимальной суммарной мощности потребления.• разработаны методики оптимизации энергопотребления для каждого из выделенных подмножеств бытовых приборов.• выполнено моделирование полученных алгоритмов оптимизации, которое показало их  работоспособность, эффективность и возможность их практического применения без какой- либо адаптации.Таким образом, в статье предложено решение задачи оптимизации энергопотребления в  жилищном секторе, ориентированное на практическое применение