bluuebunny/crossref_metadata_2025 huggingface dataset:
SPANISH PUPPET THEATER OF 17TH CENTURY SEVILLE
Authors:   Moscow Institute of Physics and Technology, Artamonova Еkaterina А. ,   State Institute for Art Studies of the Ministry of Culture of the Russian Federation
Published: November 2024

In the history of world theater studies, there has been a tradition of identifying puppet theater as a separate art direction, isolating it from the current theatrical process. If you open the article by B. V. Goldovsky’s “Puppet Theater” in the modern “Great Soviet Encyclopedia”, then from the definition it is obvious that puppet theater belongs to theatrical art. In the tradition of Western and domestic theater studies, it is customary to view history through the prism of the biographies of authors woven into the fabric of the historical context, as well as the surviving texts of plays. Based on this method, bypassing historical documents, over the centuries a picture of the formation of professional theater has emerged. With the advent of computer technology and the beginning of the process of digitization of archives, it became possible to work with documentary primary sources. That is why it is necessary to re-clarify and supplement existing information in order to have a correct understanding of the history of world theater, which certainly influences the modern theatrical process. Spanish puppet theater, unfortunately, also became an exception from teaching aids, although throughout the history of the theater, puppet shows accompanied performances in the Corrals and enjoyed no less success with the public. The center of development of puppet theater in the 16th century was Seville, which was experiencing the Golden Age of theatrical culture. Thanks to the successful completion of the archive digitization process, based on primary sources, it is possible to reconstruct the puppet theater and compare it with modern analogues. Since there are no monographs on Spanish puppet theater in Russian theater studies, the purpose of the article is to draw attention to the relevance of the problem and clarify key points using the example of the reconstruction of the performance of the troupe of V. Colomer in the Monteria Corral in Seville in the 17th century.
UNDER THE GOLDEN PAINT. ANCIENT MESOPOTAMIA IN 1960S ITALIAN POPULAR CINEMA
Authors:   Lomonosov Moscow State University, Kisbali Tamás P.
Published: November 2024

Mytho-historical epic movies enjoyed a particular popularity in Italian popular cinema of the 1950–1960s, presenting a mix of themes and motifs from antiquity and the Bible. In this article, one such movie, “Io, Semiramide” (dir. P. Zelio, 1963) is singled out for analysis to demonstrate the reception of ancient Mesopotamia in this corpus. The visual language of these movies is based on the principles of European art of the 19th century. Therefore, the first part of the article is devoted to an overview of the formation of this specific system, and the role of the popularization of archaeological knowledge, archaeological illustration, museums, ornamental pattern books. This is followed by the in-depth analysis of “Io, Semiramide”. Its decorations are compared to previous and contemporary movies and their 19th century roots. The film builds up several typical spaces, with their set visual code and semantic aspects (throne room, temple, private quarters, etc.). Particular attention is paid to the role of statues and reliefs, many of which have an archaeological “provenance”, but are modified according to the dramaturgy. The general “Oriental” background of the movie is punctuated with motifs from classical antiquity (e.g. the deliberate comparison of a male body with the Parthenon sculptures or the situation of a conspiracy scene in a sort of “Roman thermae”). Finally, the role of one particular object (the so-called altar of Tukulti-Ninurta I) is examined in detail, as it is used, quite creatively, to accentuate the actions on the screen.
Hito Steyerl’s Paradoxical Vision
Authors:   HSE, Jouravlev Alexander O.
Published: November 2024

Book review: Steyerl, H. Beyond Representation. Essays 1999–2009. / Steyerl Hito; translated by Evgenia Maleninska. Nizhny Novgorod: Red Swallow Publishing Press, 2021. 200 p.: ill. (New Media).
THE OLD NUREMBERG CARNIVAL IN THE TRANSITION TO THE NEW TIMES
Authors:   State Institute for Art Studies of the Ministry of Culture of the Russian Federation, Kotelnikova Тatiana М.
Published: November 2024

The article examines a striking phenomenon of European culture — traditional carnival. The historical perspective is coordinated by geographical and chronological localization: Nuremberg, 16th century. The object of the study, the Schoenbartbuch of the University of California Library, reflects the nature of the cultural and artistic process before and after 1539, when the last, especially spectacular procession of mummers, schembartlauf, took place in the city. Up to a third of the more than two hundred drawings in this book are devoted to it. It is a remarkable gallery of episodes and images, chronologically arranged from 1449, when the chronicle of the Nuremberg schembartlaufs was started. The analysis of images on the theme of carnival touches on aspects of basic content, attendant circumstances and objective changes. The brainchild of medieval urban culture, carnival became an instrument of its self-regulation due to the parodic reflection of the processes that took place in its different layers. In the Schoenbartbuch, the deep reality of life and historical psychology emerges behind the allegorical language of ornamental motifs, carnival accessories and props. The chronological principle gives the book the status of a document of the era, but the dating of 1590–1620 moves the drawings away from the last carnival depicted in them by at least half a century, and from the first — by a century and a half, so the use of chronicle and material evidence does not remove the question of the degree of documentary nature of these images and, accordingly, their value as a historical source. The value of the drawings was ensured by the concept embodied in them — an artistic reconstruction of the era in which the carnival achieved the full disclosure of its syncretic character, a bizarre combination of semantic and material, ritual and improvisational proto-­­theater, applied and visual creativity. The imitation of medieval style did not prevent the artists from capturing and conveying the subsequent increase in spectacle, thematic and staging fantasy, the desire for developed staging and the increased aestheticism of images, which foreshadowed the transition of the street carnival to a different level of theatricality.
COVID-19 Pandemisiyle Mücadelede Dünya Sağlık Örgütü’nün Rolünün Uluslararası Rejim Kuramına Göre İncelenmesi
Authors: Sönmez Merve , Toprak Elif
Published: November 2024

İlk kez 2019 yılı sonunda Çin’de ortaya çıkan ve hızla dünya çapında yayılan COVID-19 salgınının etkileri gerek ulusal gerekse uluslararası düzeyde görülmüştür. Araştırmada sosyal, ekonomik ve siyasi yönden etkileri olan COVID-19 pandemisi ele alınmıştır. COVID-19 pandemisinin küresel sağlık rejimlerine etkisi ve özellikle Dünya Sağlık Örgütü’nün (DSÖ) pandeminin yol açtığı küresel krizle mücadeledeki rolü incelenmiştir. Elde edilen bulgular çerçevesinde DSÖ’nün söz konusu pandeminin kontrol altına alınması bağlamında yetersiz kaldığı çıkarımına ulaşılmıştır. COVID-19 pandemi sürecinin yönetiminde DSÖ’nün etkisinin sınırlılığı, örgütün kriz yönetiminde oynadığı rolün özellikle epistemik toplulukların da katılımıyla geliştirilmesi gerektiğini göstermektedir.
Sucrose Gradient_Surface Isolation v1
Authors: Radaoui Alexander , not provided hamiltonak , L Conkrite Karina
Published: November 2024

Protocol for extracting the surface membrane of cell lines or PDX tumors (or patient tumors) and preparing for mass spec.
Enhancing Flexibility and Reliability in Smart Distribution Networks: A Self-Healing Approach
Authors: LIU Yuan
Published: November 2024

This paper presents a pioneering approach that integrates a Self-Healing System through a Smart Distribution Network, which employs a two-step implementation of a comprehensive Energy Management algorithm and a multi-agent system with an autonomous distributed regeneration method. The novel method improves network operation through optimized management of local microgrids, which include diverse components comprising renewable energy sources, electric vehicle charging infrastructure, and energy storage systems. The first phase concentrates on minimizing network operation costs by adhering to system utilization restrictions and optimal load distribution, while the second phase addresses the optimization of regeneration processes, which decreases discrepancies between recoverable priority loads and switching operations. The evaluation introduces a stochastic programming approach to model and manage uncertainties, and utilizes the Kantorovich method and the roulette wheel mechanism to improve reliability. ...
Development of method for calculating the components of thermal efficiency reserve of combined-cycle plants
Authors:   Ivanovo State Power Engineering University, Zinovieva A.S. , Ledukhovskiy G.V. ,   Ivanovo State Power Engineering University, Zinovieva E.V. ,   Ivanovo State Power Engineering University, Gorshenin S.D. ,   Ivanovo State Power Engineering University, Borisov A.A. ,   Ivanovo State Power Engineering University
Published: November 2024

The components of the thermal efficiency reserve of thermal power plant equipment are the overexpenditure or savings of fuel due to the deviation of the actual values of the equipment performance from their nominal values. They are determined in tons of reference fuel for a certain period. The components of the thermal efficiency reserve are the most essential element of the technical record-keeping and reporting systems of power plants. They allow us to quantitatively assess the technical condition of the equipment and, on this basis, effectively plan repair programs. The methods to calculate the components of the thermal efficiency reserve of steam power plants are well developed and regulated according to the regulatory documents. Regulatory requirements for combined-cycle plants in this area contain inaccuracies and do not cover a full list of the components of the thermal efficiency reserve. Thus, it is necessary to develop a method that allows us to calculate the components of the thermal efficiency reserve of combined-cycle plants. When developing the methodology for combined-cycle plants, the authors have applied the approaches to calculate the components of the thermal efficiency reserve that are used for steam power plants. In addition, available methods for assessing the thermal efficiency of thermal power plant equipment have been used. The developed methods have been tested based on actual data on the operation of combined-cycle plant PGU-116. A methodology to calculate the components of the thermal efficiency reserve of combined-cycle plants with waste-heat boilers without fuel afterburning has been developed. The methodology has been tested in assessing the thermal efficiency indicators of combined-cycle plant in operation. Shortcomings in regulatory documents of the energy industry in terms of calculating the components of the thermal efficiency reserve of combined-cycle equipment have been identified. The developed methodology can be recommended for use in the systems of technical record-keeping and reporting of power plants when monitoring the indicators of thermal efficiency of combined-cycle plants. To ensure the objectivity of the results of the analysis of the efficiency of operated combined-cycle power units in Russia, it is necessary to adjust industry regulatory documents. They should contain uniform scientifically substantiated methods for calculating the components of the reserve of thermal efficiency of combined-cycle equipment.
Technical and economic indicators of energy complex when using wind power plants to cover in-house needs of CHPs
Authors:   Ivanovo State Power Engineering University, Zinovieva E.V. , Ledukhovskiy G.V. ,   Ivanovo State Power Engineering University, Shuvalov S.I. ,   Ivanovo State Power Engineering University
Published: November 2024

In accordance with the Russia Energy Strategy until 2035, within the framework of the implementation of energy-saving technologies in the power-generating sector, it is planned to use hybrid energy, which is one of the ways of transition from conventional generation to generation with a high share of renewable energy sources. However, to implement such complexes, it is necessary to conduct research that considers the natural and climatic characteristics of the region, its resource capabilities, as well as the mutual influence of conventional and renewable energy sources in the structure of generating equipment capacities. The wind potential at the construction site has been analyzed to assess the feasibility of incorporating wind turbines. Based on the technical characteristics of wind turbines and meteorological conditions, the model of wind turbines to be installed has been selected. Technical and economic indicators of the energy complex operation, providing for the use of wind power plants to partially cover the house load of CHPs have been obtained. The indicators are determined on an annual, monthly basis using the physical method of attributing the total fuel costs for heat and electricity output in case of their combined production. Operation of wind power plants as a part of the energy complex with CHP in winter has a positive effect on the process of thermal efficiency of combined heat and power generation, and in summer, on the contrary, leads to deterioration of the efficiency indicators. Relatively small fuel savings per year when using wind power plants as a part of the energy complex with CHP does not allow to consider the project cost-effective. The obtained results should be considered when making system-wide decisions on the development of renewable energy sources in parallel operation with fossil fuel power plants.
Study of operation of thermal desalination plant with contact evaporator and compression of vapor-air mixture
Authors:   Ivanovo State Power Engineering University, Kozlova M.V. , Bannikov A.V. ,   Ivanovo State Power Engineering University, Bannikova S.A. ,   Ivanovo State Power Engineering University
Published: November 2024

One of the global issues of our time is the shortage of freshwater resources. Desalination of marine and brackish waters is a promising solution to this problem. The most common desalination technologies are thermal (distillation) and baromembrane (reverse osmosis and nanofiltration) processes. When designing demineralization stations with reverse osmosis units, it is necessary to consider a number of limitations associated with higher requirements for pretreatment of water entering the unit. The use of thermal desalination plants makes it possible to obtain fresh water of higher quality, and less stringent requirements are imposed on the preliminary preparation of water for this type of unit. However, during the operation of desalination plants of this type, scale forms on the heating surfaces, which negatively affects the efficiency of the unit. Scale is formed less intensively in the units with contact vapors, since in this case the evaporation process occurs in volume. Thus, the development of thermal scheme of such unit and the study of their operation is relevant. The tasks have been solved using the methods of experimental studies of heat and mass transfer processes, mathematical processing of experimental data, and balance calculations of power plants. A thermal scheme of a thermal desalination plant with a contact evaporator with compression of a vapor-air mixture has been developed. Thermal and material balance has been compiled, on the basis of which energy costs have been determined to obtain m3 of fresh water. The authors have proved the determining influence of the temperature of desalinated water in the bubbling zone on the productivity of desalination plants with a contact evaporator. An amendment has been obtained that allows the initial salinity of water and brine to be considered when calculating the operating cycle of the unit. As a result of the analysis of the results obtained, it is found that an increase in the water temperature in the bubbling zone allows us to increase the productivity of the unit, and an increase of the drying temperature of the vapor-air mixture leads to a decrease of the energy consumption of the desalination plant. The introduction of an amendment considering the salinity of the source water and brine makes it possible to increase the accuracy of calculating air humidification up to 15 %.
Study of the characteristics of combined flue gas deep cooling devices on hot water boilers of housing and communal services system
Authors:   Donetsk National Technical University, Biryukov A.B. , Lebedev A.N. ,   Donetsk National Technical University, Kaminsky K.D. ,   Donetsk National Technical University
Published: November 2024

One of the ways to increase the efficiency of hot water boilers of the housing and communal services system is the deep cooling of combustion products to temperatures below the dew point temperature. Currently, there are a number of studies on the use of condensation economizers and air heaters of various types to solve this problem. The use of such devices makes it possible to reduce the temperature of combustion products and, thus, increase the heat utilization coefficient, reduce fuel consumption. The use of combined flue gas cooling devices seems particularly promising, but the parameters of their operation have not yet been studied. In this regard, the development and study of the parameters of such devices are relevant. Using the techniques to design heat exchangers, a set of thermal calculations has been performed to study the characteristics of a combined deep cooling system for combustion products after a hot water boiler of the housing and communal services system, represented by an air heater and a condensation economizer. It is considered that one part of the flue gases after the air heater is sent to the economizer, and the other part goes through the bypass, bypassing the economizer, and then meets the combustion products coming out of it. The distribution of the combustion product flow before the economizer is based on the need to ensure the temperature of the mixed flow after the economizer at 70 °C. For the most common hot water boiler in the housing and communal services system of the TVG-8M type, the authors have been established the dependence of the heat transfer coefficients, the surface area of the heat exchangers and other parameters of the deep cooling system of the exhaust gases on the set value of the temperature of the combustion products after the air heater. It has been established that the proposed scheme of a combined deep cooling system for combustion products makes it possible to improve the technical and economic performance of the boiler by reducing fuel consumption. It is proved that the smoke temperature after the air heater for this type of the boiler should not be very low (not lower than 115–130 °C), since it dramatically increases the heat flow with a decrease in the average logarithmic temperature difference and leads to an increase not only in the temperature of the heated air, but also in the surface area of the air heater.
Heat transfer during water movement in a pipe at temperatures close to boiling points in the transient mode
Authors:   Kazan State Power Engineering University, Badretdinova G.R. , Dmitriev A.V. ,   Kazan State Power Engineering University
Published: November 2024

Currently, there is a problem of developing effective methods to calculate heat and mass transfer processes during steam condensation from a vapor-gas mixture in industrial devices. This is due to the need to create new reliable and highly efficient designs of heat exchangers for various purposes. The finite element method has been used in the ANSYS Fluent software package during the numerical simulation. An experimental plant is tested in the pipeline of an industrial enterprise at the production site of the Technopolis KHIMGRAD industrial park (Kazan-city). The applicability of the Lee model to solve problems of water flow in a pipeline with partial evaporation is proved. This model allows you to accurately account for the processes of evaporation and condensation, which is important for the design of cooling and air conditioning systems. The authors have designed a three-dimensional model of the flow area of the experimental module and a CFD model to calculate temperatures, phase velocities and their concentrations, considering the peculiarities of the ongoing processes of heat and mass transfer. A slight effect on the heat flow of a 180° rotation during the flow of a liquid medium in the range of the Reynolds numbers 1800–2600 is shown. The developed model is verified with the results obtained at the experimental plant. It is established that the model reproduces experimental data well. An analysis of studies of heat and mass transfer processes during the fluid flow in channels in the presence of phase transitions is carried out. The problems of calculating the parameters of heat transfer during the movement of a fluid in a transient mode are revealed, especially at values of the Reynolds number close to 2000. The experimental plant diagram is presented. It is found that in the range of Reynolds numbers of 2600–3600, the calculated temperature values differ from the temperature values obtained experimentally by less than 0,42 %. During the partial transition of water into steam in the range of Reynolds numbers of 1800–2600, the deviations were less than 6 %, which confirms the adequacy of numerical modeling of calculating the heat transfer process in a pipe. It is shown that considering the influence of temperature on surface tension, the coefficient of thermal conductivity of water and the coefficient of dynamic viscosity of water is important to obtain accurate results. The proposed approach can be used to optimize the operating parameters of condensers and evaporators, as well as to accurately calculate the heat transfer coefficient and determine the areas of vapor formation. It will improve the energy efficiency of industrial installations and reduce the cost of equipment operation.
Analysis of the impact of synchronous generator parameter inaccuracies on the electric power system transient stability assessment
Authors:   Ivanovo State Power Engineering University, Rafikov V.R. , Ivanov I.E. ,   Ivanovo State Power Engineering University, Murzin A.Yu. ,   Ivanovo State Power Engineering University
Published: November 2024

One of the important tasks solved in planning the electric power system (EPS) operation is the assessment of its transient stability. Use of incorrect parameters for EPS element models, in particular synchronous generators (SG), contributes to the occurrence of errors when determining the operating conditions of power systems, and, therefore, can lead to a decrease in the reliability of EPS operation. This article is devoted to the study of the impact of errors in SG model parameters on the transient stability assessment results. The analysis presented in this article allows us to substantiate the relevance of the SG parameter estimation task using a “passive experiment”, such as synchronized phasor measurements. This research is based on the theory of electrical circuits, mathematical description of electrical machines and transients in EPS, as well as statistical analysis. Computational experiments have been carried out in the software package MATLAB using the simulation modeling environment “Simulink”. During the research, two different multi-machine EPS models have been used, including the well-known “IEEE 9-bus” system. To quantitatively assess the influence of SG parameter uncertainties on transient stability analysis, the values of the maximum permissible fault clearance time are determined, as well as the values of the maximum power output of generating equipment in prefault conditions. The authors have carried out a comprehensive analysis of the influence of deviations in SG model parameters on the maximum fault clearance time, as well as on the maximum power output of generating equipment in the prefault conditions for a given fault duration. During the study, two approaches have been considered; in each case, the EPS transient stability assessment has been performed almost automatically, and quantitative indicators have been computed for the influence of SG model parameter deviations on the outcome of EPS transient stability analysis. Analysis of the computational experiment results has demonstrated a significant influence of the SG model errors on the errors in calculating certain transient stability-related parameters. For the considered scenarios, the spread of errors in calculating the maximum fault clearance time reached 100 % relative to a base-case (errorless) result, and the error in calculating the maximum power output of generating equipment in prefault conditions for a given fault duration may reach 20 % relative to the errorless result.
On the possibility of monitoring the condition of induction motors with a variable speed drive by spectral analysis method
Authors:   Empress Catherine II Saint-Petersburg Mining University, Nazarychev A.N. , Zakharov M.A. ,   Ivanovo State Power Engineering University, Strakhov A.S. ,   Ivanovo State Power Engineering University, Novoselov E.M. ,   Ivanovo State Power Engineering University, Polkoshnikov D.A. ,   Ivanovo State Power Engineering University, Skorobogatov A.A. ,   Ivanovo State Power Engineering University
Published: November 2024

One of the important tasks of current energy power industry is to increase the reliability of induction motors operation. A promising direction for monitoring their technical condition is application of methods of spectral analysis of signals. However, very little attention is paid to the diagnostic assessment of induction motors as a part of a variable frequency drive, as well as the use of frequency converters for diagnostic purposes. Therefore, the issues related to monitoring the condition of induction motors with variable frequency drives are relevant and require scientific research. The purpose of the study is experimental evaluation of the possibility to use the spectral analysis method to assess the technical condition of induction motors driven by frequency converters. The research has been carried out on AIR71A6 induction motor with a serviceable rotor winding and one broken rotor bar rotor winding. The internal magnetic field is considered as a diagnostic signal in steady-state and start-up mode. The condition has been evaluated based on the determination of harmonics in the amplitude spectrum from the dummy rotor winding. A Short Time Fourier Transform is used for signal processing. The spectra of the internal magnetic field have been obtained at start-up and in steady-state mode when the engine is fed by an autotransformer and frequency converter. A diagnostic sign of the presence of broken bars, that is an increase of harmonic amplitudes from the dummy rotor winding, manifested itself not only when the electric motor is fed by an autotransformer, but also frequency driven. Comparing the amplitudes of harmonics in the presence and absence of a frequency converter allows us to conclude that interference of the converter slightly affect the amplitudes of specific harmonics. Using the example of an internal magnetic field signal, it is shown that spectral analysis methods can be used to diagnose the induction motors condition with a variable speed drive.
Selection of criteria to reduce the unknowns in Newton–Raphson method in the problem of finding an equilibrium composition of iron ore and fuel
Authors:   Siberian State Industrial University, Sechenov P.A.
Published: November 2024

Finding the equilibrium composition of a multicomponent system is required in various industries associated with chemical reactions. Reduction of the unknowns in the original nonlinear equation is possible if most of the unknowns receive values equal to zero as a result of the solution. This situation is typical to solve the problem of finding an equilibrium composition of iron ore and fuel, where the unknowns are the number of moles of all possible reaction products from given simple substances. The dependence of algorithmic complexity on the number of unknowns to solve a SLAEs is expressed through the function O(N3). Therefore, reduction of the unknowns will speed up the computational process. Thus, the solution to the problem of selecting criteria to reduce the number of the unknowns at each iteration of the Newton-Raphson method as applied to the problem of finding the equilibrium composition of iron ore and fuel is relevant. The matrix dimensionality reduction has been achieved using four strategies. The first three strategies involve finding a minimum threshold (removing values that most quickly tend to zero), after which the number of unknowns will decrease. The fourth strategy is associated with reducing the dimension of the original matrix. The results of numerical experiments to reduce the unknowns and speed up calculations are presented. Criteria have been found under which the calculation speed increases by 2–4 times and variables whose value is not equal to zero are not reduced. The criteria to reduce the unknowns implemented in the T-Energу software package make it possible to solve the problem of finding the equilibrium composition of iron ore and fuel 2–4,2 times faster. In this case, the obtained solution for the components of the equilibrium composition with the reduction of the unknowns corresponds to the complete solution with an accuracy of 10–3. Due to acceleration at the same time, it is possible to construct equilibrium compositions over a temperature range with a temperature step that is 4 times smaller.
UNUSUAL SOLAR ACTIVE REGION NOAA 13088/13102
Authors:   Mail Astronomical Observatory of NAS, Kyiv, Ukraine, KONDRASHOVA Nina , KRIVODUBSKIJ Valery ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: November 2024

Background. Under certain conditions, deep fluctuating magnetic fields lead to violations of Hale’s and Joy’s laws of observed magnetism on the surface of the Sun. These magnetic fluctuations can be excited by two qualitatively different mechanisms of a small-scale dynamo. The first mechanism is a macroscopic MHD dynamo, while the second mechanism is a classical MHD diffusion dynamo. An important difference between the two mechanisms is the percentage of observed anti-Hale sunspot groups (relative to the total number of sunspots) in solar cycle minima. In the case of the first mechanism, the percentage of anti-Hale groups does not depend on the phase of the cycle, while the specified percentage associated with the second mechanism should reach its maximum value in solar minima. To separate the minor contributions of the two named sources of magnetic fluctuations, the researchers proposed a theoretical test based on statistical analysis of observational data over long periods of time (Sokoloff, & Khlystova, 2010). According to the proposed test, the percentage of anti-Hale groups of spots increases during the minima of the cycles, which indicates the favor of the diffusion dynamo. In order to confirm the dominant contribution of the diffusion dynamo to the surface magnetism, this work investigates a specific anomalous active region near the solar minimum. Methods. Macroscopic and classical MHD, which study the behavior of electromagnetic and hydrodynamic fields in turbulent plasma. Analysis of data from observations of the surface magnetism of the Sun. Results. We investigated the evolution of the NOAA 13088/13102 active region observed on August 24, 2022, shortly after the cycle 25 minimum. For the analysis, data from observations using instruments installed on board space observatories were used. A feature was revealed, which consists in the deviation of the surface magnetic configuration of this active region from Hale’s law of the magnetic polarity of groups of spots and Joy’s law of the inclination of the axes of bipolar groups to the latitudinal direction. In addition, it was established that the active region of NOAA 13088/13102 is characterized by rather high flare activity. Conclusions. We believe that the magnetic anomalies of the active region of NOAA 13088/13102 that we found were caused by the influence of magnetic fluctuations excited by the mechanism of the deep small-scale diffusion dynamo, since it is this source that gives the most noticeable contribution to the surface magnetism near the cycle minima. The detection and study of unusual anti-Hale’s AOs with increased eruptive activity, similar to NOAA 13088/13102, may find application in predicting periods of dangerous manifestations of space weather and in forecasting the dynamics of solar cycles.
Türkçe ve İngilizce Öğretmen Adaylarının Eleştirel Düşünme Standartları, Eleştirel Yazma Becerileri, Eleştirel Okuma Özyeterlik Algıları ve Eleştirel Dinlemeye Yönelik Tutumları Arasındaki İlişkiler
Authors: Kamçı Fatih , Tuncer Murat
Published: November 2024

Bu araştırmada; Türkçe ve İngilizce öğretmen adaylarının eleştirel becerilerinin (eleştirel düşünme, eleştirel yazma, eleştirel okuma ve eleştirel dinleme) birlikte incelenmesi amaçlanmaktadır. Araştırmada, nicel araştırma yöntemlerinden biri olan yordayıcı korelasyonel araştırma modeli tercih edilmiştir. Araştırmanın örneklemi, seçkisiz olmayan örnekleme yöntemlerinden uygun örnekleme ile seçilen; Fırat, Dicle, İnönü, Muş Alparslan, Siirt ve Gaziantep Üniversiteleri Eğitim Fakültelerinin Türkçe ve İngilizce Öğretmenliği bölümlerinde öğrenim gören 1258 öğretmen adayıdır. Araştırma kapsamındaki tüm ölçme araçlarının alt boyutları ile istatistiksel olarak anlamlı pozitif yönde ve orta düzey ile yüksek düzey aralığında değişen ilişkilere sahip olduğu tespit edilmiştir. Bu netice her bir ölçme aracının tek bir toplam puan ile ifade edilmesine kanıt sağlamaktadır. Buna göre ölçme araçlarının toplam puanları alınarak aralarındaki ilişkiler incelenmiş, araştırma kapsamında ele alınan değişkenlerin ikili korelasyonlarının istatistiksel olarak anlamlı pozitif yönde ve orta düzeyde ilişkili olduğu tespit edilmiştir. Araştırmada öğretmen adaylarının eleştirel okumaya yönelik algı düzeyleri ile eleştirel yazmaya yönelik algı düzeyleri arasındaki ilişkide, eleştirel dinleme ve düşünmeye yönelik algı düzeylerinin aracılık rolünün incelenmesi hedeflenmiş ve regresyon tabanlı aracılık analizi gerçekleştirilmiştir. Sonuç olarak öğretmen adaylarının eleştirel okumaya yönelik algı düzeyleri ile eleştirel yazmaya yönelik algı düzeyi arasındaki ilişkide, eleştirel dinleme ve eleştirel düşünme değişkenlerinin kısmi aracılık rolüne sahip olduğu görülmüştür.
An arrhythmic variant of the manifestation of paraneoplastic Loeffler endomyocarditis. Clinical case
Authors: Grishkin Yuri N. , Zimina Vera  Yu. , Babayan Anahit  A. , Karchikian Pavel  O. , Butayev Tamerlan  D. , Grigorieva Oksana  V.
Published: November 2024

A clinical case of chronic undulating course of parneoplastic Loeffler endomyocarditis, the leading manifestations of which were ventricular arrhythmias, is presented. The paper demonstrates the complexity of early diagnosis of a rare pathology in a polymorbid patient and attempts to identify the "keys" to the correct diagnostic and therapeutic tactics for managing such patients.
Challenges and benefits of using texture analysis of computed tomography and magnetic resonance imaging scans in diagnosis of bladder cancer
Authors: Kovalenko Anastasia A. , Sinitsyn Valentin E. , Petrovichev Victor
Published: November 2024

Radiomics and texture analysis is a new step in the evaluation of digital medical images using specialized software and quantitative assessment of signs invisible to the eye. The textural parameters obtained through mathematical transformations correlate with morphological, molecular, and genotypic characteristics of the examined area.
This article reviews scientific studies on challenges and benefits of using texture analysis in diagnosis of bladder cancer. The authors describe the practical value of this approach, and consider the challenges and potential of using it. Forty publications published between 2016 and 2024 were selected using keywords from PubMed and Google Scholar.
Multiple studies demonstrate high accuracy of radiomics in local staging of bladder cancer, morphologic assessment of the tumor, and prediction of long-term clinical outcomes.
Therefore, texture analysis of medical images can provide additional information to diagnose bladder cancer in uncertain cases. Standardization of the method is currently one of the key issues to accelerate implementation of radiomics analysis in clinical practice.
Potential of diacerein in combination with aerobic exercise in comprehensive treatment of knee osteoarthritis
Authors: Shokhin Andrei A. , Trofimova Anna S. , Trofimov Evgeniy A.
Published: November 2024

BACKGROUND: Knee osteoarthritis is a common degenerative disease characterized by cartilage destruction and inflammatory changes in the synovial membrane. Obesity and metabolic syndrome are significant risk factors that exacerbate inflammatory processes and contribute to the progression of osteoarthritis. Modern treatment methods include both pharmacological agents and non-pharmacological approaches such as aerobic exercise.
AIM: To evaluate and compare the effectiveness of diacerein combined with aerobic physical activity (Nordic walking) in the comprehensive treatment of knee osteoarthritis.
MATERIALS AND METHODS: The study involved 65 patients aged 45 to 70 years with knee osteoarthritis and metabolic syndrome. The participants were divided into three groups. The first group received diacerein (Artrocare); the second group was engaged in Nordic walking; the third group – a combination of these methods. The visual analog scale of pain, Western Ontario and McMaster University Osteoarthritis (WOMAC) index, quality of life (Short Form-36), glycated hemoglobin levels, and other biochemical parameters were assessed over 16 weeks of observation.
RESULTS: The study demonstrated statistically significant reductions in pain levels and improvements in functional parameters in all the groups. The greatest improvements were observed in the group receiving combined therapy. The method showed a significantly positive impact on quality of life and reduced the need for analgesics in comorbid patients. Additionally, the patients with metabolic syndrome showed improved biochemical parameters with the combination of diacerein and Nordic walking.
CONCLUSIONS: The combined use of diacerein and Nordic walking is an effective and safe method for treating knee osteoarthritis, particularly in patients with metabolic syndrome. This approach significantly reduces pain, improves joint function, and enhances overall quality patient’s life.
Effects of applying sports liniment with massage on muscular relative strength of hip flexion and knee extension among male Muay Thai athletes: a randomised control trial
Authors: Johnson Lee David , Sarinukul Chawin , Rittirod Theera , Konharn Kurusart
Published: November 2024

Background: Muay Thai, Thailand’s national sport, widely practiced globally, is known for using sports liniment before training and fights. A popular product is ‘Namman Muay’, an iconic symbol of Thailand, though its direct impact on performance lacks research. Objectives: Investigate the impact of Namman Muay on the rectus femoris of the dominant leg. Focus on muscular strength exercises – seated hip flexion and supine knee extension – with relative strength as the primary outcome. Material and Methods: A randomised control trial with 24 male Muay Thai fighters, divided into 12 in the Baby Oil (BO) and 12 in the Namman Muay (NM) group. Both groups received effleurage massage on the dominant kicking legs, followed by a RAMP warm-up. Performance measurements using Lafayette Handheld Dynamometer evaluated two isometric strength tests. Results: NM intervention showed significant increases in hip flexion and knee extension strength. Within groups, a 3% decrease was seen in the BO and an 11.6% increase in NM for hip flexion strength, and 1% decrease in BO and 6.9% increase in NM for knee extension strength. Conclusion: This study provides valuable insight to Muay Thai fighters and trainers, showing that 5 ml NM boosts relative muscular strength of hip flexion and knee extension. This could improve male Muay Thai fighters’ performance particularly when using kicking techniques.
Anthropometric profile and dietary intake of amateurs and professional mixed martial arts athletes
Authors: Bueno João Carlos Alves , Aoki Marcelo Saldanha , Coswig Victor Silveira , Silveira Eduardo Poloni , Alves Ragami Chaves , Andrade Alexandro , Souza Junior Tácito Pessoa de
Published: November 2024

Nutritional habits and anthropometric profiles are directly linked to competitive performance; however, there is a great lack of information on amateur or professional mixed martial arts (MMA) athletes outside the competitive period. The aim of this study was to compare food consumption and anthropometric profile of amateur and professional MMA fighters. The sample was composed of 24 male MMA athletes, middleweight category (age: 27.5 ± 5.0 years; body mass: 79.0 ± 12.1 kg; height: 173.5 ± 0.1 cm; %BF: 19.5 ± 4.0 %, BMI: 26.0 ± 2.8 kg/m2). Food consumption was evaluated based on three 24-hour food diaries using the Multi-Step method in a non-competitive period and analyzed using the Dietbox v2.92 software. The professional group was younger (p = 0.001) than the amateur group. Total energy expenditure was similar between amateur (4364 ± 469 kcal) and professional (4312 ± 381 kcal). Amateur and professional reported an energy deficit between the estimated energy requirement and energy intake. Carbohydrate consumption was below the suggested minimum limits (amateur: 3.3 ± 1.6g/kg/day and professional: 3.3 ± 1.4g/kg/day). Protein intake was within the suggested limits (amateur: 1.4 ± 0.9g/kg/day and professional: 1.8 ± 0.8g/kg/day) and lipids presented borderline values about to with concerning the recommendations in the literature (amateur: 0.9 ± 0.6 / g/kg/day and professional: 1.8 ± 0.9 g/kg/day). Amateur and professional athletes did not differ in terms of food consumption and anthropometric profile. Both groups, amateur and professional, demonstrated negative energy balance and inability to reach the suggested levels of macronutrient intake according to the classification. Thus, it is recommended that both MMA groups receive attention regarding nutritional strategies.
USERN and Companions House and Museum: An Initiative by USERNversity for the Integration of Science and Art
Authors: Yazdanpanah Niloufar , Parnianpour Mohsen , Behniafard Mousa , Sahraian Mohammad Ali , Mehdizadeh Mehrzad , Ramezanzadeh Fatemeh , Behnaz Mohammad , Motamed Afrouz , Fekrazad Reza , Esnaashari Mehrshad , Motevalli Sadroddin , Ranjbar Alireza , Mahboudi Fereidoun , Rezaei Nima
Published: November 2024

The Article Abstract is not available.
Selenium and Graves’ Disease
Authors: Fatourechi Vahab , Heshmati Hassan M.
Published: November 2024

Selenium, a trace element present in specific selenoproteins, is essential for thyroid hormone metabolism. Selenium is also an antioxidant with immunosuppressive properties and may help in managing thyroid autoimmune diseases, including Graves’ (GD) hyperthyroidism and Graves’ ophthalmopathy (GO). There were 320 clinical studies related to selenium and thyroid published in English and French between January 1, 2000, and June 1, 2023. Our focus was to identify studies reporting levels of serum selenium in patients with GD and studies that assessed the effect of selenium supplementation on outcomes of GD hyperthyroidism and GO. We also reviewed 20 systematic reviews and meta-analyses of randomized controlled trials that reported selenium levels in GD and the effects of supplementation on GD and GO outcomes. Our review showed that patients with GD had serum selenium levels lower than those of various control patients. In the short-term, a selenium supplement to antithyroid drugs showed benefit for GD hyperthyroidism in most studies, but long-term benefits and positive effects on remission rate were unclear. Some studies did not show benefit. The benefits may depend on baseline selenium deficiency. Two randomized controlled trials showed positive effects of supplementation for mild GO; however, studies about moderate and severe GO are still needed. There is evidence for benefit with short-term selenium supplementation for GD hyperthyroidism, but controlled studies are needed to assess long-term benefits, and benefits in selenium-sufficient areas.
Epidemiology of Pediatric End Stage Renal Disease in Southwest of Iran
Authors: Valavi Ehsan , Nickavar Azar , Amoori Parisa , Ghalesardi Zahra Kiani
Published: November 2024

Chronic kidney disease is a devastating disorder, which complicated the quality of life in affected patients. Determination the epidemiology of end stage renal disease (ESRD) seems necessary to decrease the occurrence of progressive renal damage in at risk patients. This study was performed to investigate the epidemiologic characteristics and treatment modalities of children with ESRD. A cross-sectional study was conducted on 115 children with ESRD admitted during 2020-2022 in a pediatric nephrology center in Southwest of Iran. All children were younger than 18 years and referred for renal replacement therapy (RRT). ESRD was defined as glomerular filtration rate less than 10-15 ml/min/1.73 m2 for at least 3 months. Information such as age of ESRD, gender, etiology of ESRD and type of RRT were obtained from their medical records. A total of 115 patients (53% male) were included. Mean age at the time of ESRD was 8.47 years. Males outnumbered females. The most common cause of ESRD was congenital abnormality of kidney & urinary tract (CAKUT) in 36.5% of patients, followed by hereditary disorders. The majority of patients were older than 5 years at the time of ESRD, with a significant correlation to the underlying disorder (P<0.001). Parental consanguinity was detected in 77% of patients, especially in hereditary disorders. RRT was performed in all patients, including hemodialysis in 71.3% and chronic ambulatory peritoneal dialysis in 28.7%, respectively. In conclusion, CAKUT was the most common cause of ESRD in our patient population. was the most common cause of ESRD in our patient population. Prenatal evaluation of all fetuses along with early neonatal screening of susceptible cases is suggested for preventing practice or slowing the progression of chronic kidney disease.