bluuebunny/crossref_metadata_2025 huggingface dataset:
INFLUENCE OF SURFACE CHARGE ON THE FORMATION OF THE CARBONIZED LAYER RELIEF ON THE POLYMER SURFACE DURING ION-PLASMA TREATMENT
Authors: Beliaev A. Yu. , Izyumov R. I. , Svistkov A. L.
Published: October 2024

The origin hypothesis of the wavy relief on the surface of plasma-treated polyure-thane is considered in this paper. It has been suggested that stresses and strains appear due to the eponymous charge accumulated in the near-surface layer. A technique for cal-culating stresses under the condition of a uniform charge distribution is proposed. The constitutive equations of an elastic medium with a distributed charge, based on the law of conservation of energy and thermodynamic inequality, are obtained. The Cauchy stress tensor contains a term that depends on the charge distribution density in the resulting equations. A calculation, showing the dependence of the magnitude of stresses on ener-gy and fluence of implanted ions, has been carried out. According to the proposed mod-el, calculations show that the stresses in the material are high enough to cause a change in the shape of the surface at certain treatment regimes. It is shown that the loss of stabil-ity and, as a consequence, the appearance of waves on the surface of the material is typ-ical for low-modulus polymers. The calculation results are compared with real images, obtained using optical and atomic force microscopes, of the samples surfaces after the treatment. Conclusions about the viability of the proposed hypothesis are drawn.
BALLISTIC HEAT TRANSFER IN A ONE-DIMENSIONAL CRYSTAL WITH LONG-RANGE INTERACTIONS
Authors: Rubinova R. V. , Loboda O. S. , Krivtsov A. M.
Published: October 2024

Non-stationary thermal processes in low-dimensional structures are considered. A previously developed analytical model of ballistic heat transfer is used. The paper focuses on a one-dimensional harmonic crystal with non-nearest neighbour interactions. The coupling forces correspond to the case of a crystal with dipole interactions between the particles. The number of interacting neighbour varies. The dependence of thermal processes on the number of interacting particles has been studied. To describe the evolution of the initial thermal disturbance, an analysis of the dispersion characteristics and group velocities was carried out. It is shown that if only the nearest neighbors are considered, the maximum group velocity will be 78% of the maximum group velocity achieved when considering an infinite number of neighbors. The fundamental solution to the heat propagation problem has been constructed. A solution is obtained for the case of an initial disturbance in the form of a rectangular pulse. An assessment of the influence of neighbours on the rate of heat propagation and on the shape of the heat front was made. The dynamics of changes in wave intensity coefficients depending on the number of neighbors has been revealed. The thermal front is shown to propagate with a finite velocity equal to the maximum group velocity, which increases as more interactions are taken into account. However, the wave intensity factor decreases when the considered neighbours increase. The results obtained in this article aim to describe the heat transfer process in high-purity long-range crystals, such as dipole crystals. The results also help to estimate the error of computer modelling of such processes, since for numerical calculations it is necessary to limit the number of interacting particles.
SIMULATING THE STRESS-STRAIN STATE DURING LASER METAL DEPOSITION TO DETERMINE THE FINAL WARPING OF PRODUCTS
Authors: Smetannikov O. Yu. , Bekmansurov M. R. , Ilinykh G. V. , Dongauzer K. A.
Published: October 2024

Additive technologies, including laser powder deposition (a repair technology), enable a sequential deposition of powder layers. This process involves large temperature gradients and technological residual stresses, which can lead to shape violations and change mechanical and operational characteristics of products. To control and prevent residual deformations in the hardfacing body, it makes sense to carry out finite element modeling of the laser powder hardfacing using layer-by-layer activation technology or adding new finite elements to the surface of the hardfacing model. The Element Birth/Death method is the most suitable method for this problem. In this case the elements for the material to be created are deactivated (so not included in the solution area), and then gradually revived and included in the solution area. The material is built up discretely. At each sub-stage of the calculation, corresponding to the revival of the next sub-domain of dead elements, the coupled problem of thermal conductivity and solid mechanics is solved, and thus the result of the solution of the previous sub-stage serves as the initial conditions for the next one. A mathematical model and an algorithm for modeling warping during the deposition are developed, and calculations for the deposition of cylindrical specimens are carried out. During the calculations, the multilinear MISO plasticity model for the sample material and the BISO bilinear plasticity model for the filler powder were used. We verified the model based on the optical control results of changes in the geometry of the experimental samples after the deposition had been carried out. The error in warpage calculation did not exceed 5%.
CALCULATION OF STATIC DEFORMATION OF AXISYMMETRIC SHELLS OF ROTATION WITH DIFFERENTIAL MODEL
Authors: Nguyen C. M. , Shelevaya D. R. , Krasnorutskiy D. A.
Published: October 2024

In the paper differential equations of static geometrically nonlinear deformation of axisymmetric shell of rotation are obtained. The resolving functions are projections of vectors in the global coordinate system. The equations allow describing any geometry of meridian (breaks, curvature jumps), large deformations, changing of shell thicknesses during deformation, also cross shears characteristic for thick shells. For the numerical solution, the approach based on the finite difference method is applied, which is realized in the own software package for the calculation of the mechanics of spatial rod systems – DARSYS. The calculations of test problems of the internal pressure inflation of cylindrical, spherical, elliptical, conical shells, as well as a combined conicalcylindrical shell with a meridian break are presented. Graphs of convergence of displacements at the reference points as a function of mesh density and under load variation are given, and deformed meridian configurations are plotted. The solutions obtained in ANSYS by different finite elements of Shell type were used as a reference for comparison. APDL scripts for parametric calculations of the test problems are given in the text of the paper. The proposed approach to the calculation of static deformation of shells of rotation has shown good agreement with finite element modeling in ANSYS (including thick shells) and in the future will be extended to the modeling of dynamic deformation and the possibility of solving coupled problems of interaction with liquid or gas. The given equations of the axisymmetric shell are a special case of the general equations, the development and application of which are beyond the scope of this paper, and the obtained solution results are the first stage of testing the developed complex approach to the calculation of static and dynamic deformation of shells, alternative to finite-element modeling.
ABOUT ONE METHOD OF STUDYING THE COEFFICIENT OF THERMAL EXPANSION OF POLYMERS
Authors: Trufanov А. N
Published: October 2024

The problem of studying the deformation response of film samples made of UV-curable polymers to temperature changes is considered. It is difficult to obtain massive samples of these polymers due to the peculiarities of their polymerization. This paper suggests a methodology for tests that allows us to determine the temperature dependence of the coefficient of linear thermal expansion (CTE) in a wide range, including the relaxation transition. As measuring equipment was used a dynamic mechanical analyzer TA Instruments Q800 DMA with liquid nitrogen cooling system GCA, which allows varying temperature and its rate of change in wide ranges, controlling and measuring forces and displacements with high accuracy. The proposed approaches are applicable to any film samples and provide an opportunity to establish functional dependences of CTE not only on temperature, but also on its rate of change. At the same time, in contrast to traditional methods, the described procedures allow obtaining correct data under the conditions of relaxation transitions taking into account the influence of the temperature change rate on these processes. Considerable attention is paid to calibrate the measuring equipment, in particular, the measurement and compensation of the temperature deformation of the tooling. The measurements results are compared with known literature sources, manufacturers data, the results of measurements of samples with known characteristics and with the results obtained on a horizontal dilatometer. It is shown that the proposed method of measurements is correct and has a number of advantages over traditional methods of research when working with film samples or in cases where it is necessary to take the effect of the rate of temperature change on CTE into account.
INFLUENCE OF ADDITIVE MANUFACTURING TECHNOLOGY OF TOPOLOGICALLY OPTIMIZED PRODUCTS FROM PHOTOPOLYMER RESINS ON THE ANISOTROPY OF THEIR MECHANICAL PROPERTIES
Authors: Ezhov A. D , Kotovich I. V , Kiselev V. P
Published: October 2024

This article discusses the problem of ensuring strength and minimum mass in the design of products manufactured using additive technologies. The authors investigated the possibility of using topological optimization in computer-aided design systems to create an optimized model with the necessary strength at a minimum weight. As part of the work, the topological optimization of the bracket, the production of its samples by additive manufacturing methods and strength tests were carried out. The optimal values were found via finite element analysis using the SolidWorks and ANSYS software. The calculation results show that the optimized model retains about 20% of the original mass and has the necessary mechanical characteristics. In particular, the excess safety margin is reduced by 2.5 times, which is acceptable for this bracket. The subsequent verification of the models is carried out through destruction tests of the products manufactured using additive technologies, i.e. the method of filament deposition and stereolithography. To account for the anisotropy of the material, a series of samples oriented at different angles to the direction of construction was made. The tests were carried out on a test bench for simultaneous biaxial stretching, which corresponds to the design loads on the bracket. An increase in the tensile load on the sample was carried out before its destruction. In the course of the work, the presence of anisotropy of mechanical properties was revealed, and optimization results in various software packages were studied. The results of strength tests allow us to draw two conclusions. Firstly, due to the anisotropy of the material, the strength properties significantly depend on the orientation of the bracket during additive manufacturing. Secondly, the bracket, optimized by means of the SolidWorks software package, generally showed the best strength properties for various orientations during manufacturing. Also, which is quite expected, the samples obtained by stereolithography showed less anisotropy than the samples obtained by the method of filament deposition. In conclusion, it is noted that the use of additive technologies to create optimized forms requires considering printing technologies and anisotropy of properties, as well as the choice of appropriate software.
THE LIMITING STATE OF A STEEL STRUCTURE UNDER EXTREME THERMOMECHANICAL LOADINGS
Authors: Emel yanov I. G , Kislov A. N
Published: October 2024

Using numerical methods, the problem of determining the strength and limiting state of a steel shell structure under thermomechanical loading is solved. The operating stresses are determined by solving a physically nonlinear boundary value problem for a shell of revolution. The classical theory of shells, based on the Kirchhoff – Love hypotheses, and the method of integrating shell equations with discrete S.K. Godunov orthogonalization are used. By integrating a system of ordinary differential equations at each point of the shell, the meridional and circumferential stresses and the corresponding deformations are calculated. When taking into account the plastic deformation of the material, the boundary value problem becomes nonlinear. The relationship between stress and strain is linearized by the method of additional strains. A limiting state criterion for thin-walled structures is proposed. In the absence of the necessary parameters for the material of construction, interpolation and extrapolation of the experimental data based on neural networks is used. The method uses the example of a muffle, which is a revolution shell structure loaded with an internal excess pressure of a hydrogen-containing gas and a non-stationary thermal field. The muffle is designed for high-temperature annealing of the electrolytic steel, and is made of non-heat-resistant St3 steel, its mechanical properties have not been sufficiently studied at temperatures above 500 °C. However, the operating temperature of the muffle can reach more than 1000 °C. Under the influence of such a thermal load, noticeable residual deformations are formed in the muffle structure and the muffle may lose its load-bearing capacity. For thermomechanical loads, a maximum temperature of 1000 °C is determined at which the limit state occurs and the operation of the muffle is not permissible. A satisfactory agreement was obtained with the actual muffle temperature during operations of 1100 °C, at which the muffle loses its load-bearing capacity.
A Case of Simultaneous Sinus Augmentation and Oroantral Fistula Closure for Implant Preparation
Authors: Hotta Yasunori , Ito Koji , Komatsu Shinichi , Saito Takashi , Teramoto Yuji , Hotta Hisato
Published: October 2024

An oroantral communication may form in the upper molar region after tooth extraction. The patient is a 59-year-old female, who is a nonsmoker. At the initial visit, teeth #14, #15, and #17 were missing. After tooth #16 was extracted due to apical periodontitis, a bone defect with a diameter of approximately 4 mm was observed, leading to the formation of an oroantral fistula (OAF). Another window was created in the lateral wall adjacent to the superior part of the bone defect at the fistula site to achieve closure of the OAF through bone formation and simultaneously perform sinus floor elevation (lateral approach) for implant placement. Through this lateral window, instruments were inserted into the maxillary sinus towards the bone defect at the fistula site. During this process, the remaining bone between the lateral window and the bone defect at the fistula site was carefully removed with instruments, connecting the two bone defects to facilitate manipulation of the instruments. The Schneiderian membrane was elevated without enlarging the tear. Six months after these surgeries, a cone beam computerized tomography (CBCT) scan confirmed the closure of the fistula with hard tissue and the elevation of the sinus floor. Subsequently, three implants were placed, and prosthetic treatment was completed. Follow-up data is provided, including periapical X-ray and CBCT images taken 2 years and 3 months after surgery (1 year and 3 months after the placement of the final prosthetic structure). The progress so far has been favorable.
Hostility as an Element of Negative Emotions in Politics : The Case of “Public Media” in Poland
Authors:   University of Warsaw, Ziółkowski Jacek
Published: October 2024

The aim of the article is to demonstrate the nature of the relationship between negative emotions and the creation of hostility in the practice of social engineering and propaganda activities. The hypothesis adopted is the recognition that there is a mutually significant relationship between the creation of hostile status entities and the use of negative emotions. Negative emotions help build enmity and hostility entities stimulate negative emotions. Hostility and negative emotions are very useful tools of political influence. They make it possible to discredit external and internal enemies, to mobilise and integrate supporters and build the desired image of a political leader. The empirical study and media content analysis revealed examples of the widespread use of hostility and negative emotions as tools of political influence in Poland.
Military Importance of the Kaliningrad Oblast
Authors:   Marie Curie Skłodowska University in Lublin, Topolski Ireneusz
Published: October 2024

The aim of this paper is to analyse the military importance of the Kaliningrad Oblast. The geostrategic location of the Kaliningrad Oblast determines its military importance on a global, regional and local scale. The exclave is a kind of ‘barometer” that determines the state of relations between Russia and the West, which translates into the level of security in the Euro-Atlantic area. On the one hand, the region bordering the countries of the North Atlantic Treaty Organization and the European Union is extremely important for ensuring Russia’s security and significantly increases the strategic depth in the western direction. Secondly, the military potential deployed in the Kaliningrad Oblast poses the greatest threat to the Baltic states and Poland.
Etos polskiego hetmana na kartach rodzimych traktatów teoretycznych XVI wieku
Authors:   Uniwersytet im. Adama Mickiewicza, Krasoń Maksymilian Jan
Published: October 2024

The author of this text proves that it is possible to reconstruct the hetman ethos on the basis of a group of sources such as works on topics related to the military. The form of the ethos is also justified by extra-source materials, which may be regarded as confirmation of its real value in research into the moral issues of the Polish nobility in the 16th century. The author submits this proposal for further discussion and possible revision. It is recommended to carry out in-depth research into the hetman ethos where other types of sources are employed, which may prove to be no less authoritative. The knowledge of the hetman ethos, also as an example of research into the world of values and the moral side of human activity in history, can be used in assessing the moral-ethical aspect of other social groups or professions, not necessarily related to the military. However, scholarly endeavours based on an analysis of all kinds of activities of Polish commanders in the First Republic using the hetman ethos will prove extremely important. In the course of the research, the emergence of new interpretations and assessments of issues may be expected, issues which to this day remain incomprehensible or seem to have been exhausted by research.
Industry 4.0 Digital Skills and Performance in Manufacturing: The Impact of Heterogeneous Regional Contexts on the Human Capital
Authors:   Ural Federal University, Chernenko I. M. , Zemzyulina V. Yu. ,   Ural Federal University
Published: October 2024

Digitalisation is often perceived as a driver of operational performance in manufacturing, but the mechanisms by which advanced digital skills influence productivity remain poorly understood. Digitalisation processes are heterogeneous in nature and are shaped by regional factors. The study aims to explore how workers’ digital human capital affects the performance of production systems in the metallurgy sector considering differences in regional digitalisation contexts. The research methods are based on multigroup analysis of partial least squares structural equation models (MGA PLS-SEM), in which the dependent variable is the performance of production systems. The research measured accumulated human capital as a stock of relevant digital basic and specific skills using a survey of 2 570 employees conducted in 2022 in Sverdlovsk, Chelyabinsk, Rostov, and Volgograd oblasts, which differ in their levels of digitalisation, innovation, industrial specialisation, and gross income. The findings indicate that advanced digital skills not only complement basic ones but also significantly enhance production performance, as the standardised path coefficients are ranging between 0.4 and 0.7. Specifically, the industrially advanced Chelyabinsk oblast shows a more significant impact of basic digital competencies on Industry 4.0 skills, though path coefficients are still less than 0.2, suggesting a moderate overall effect of Industry 4.0 skills on performance across all regions. This study contributes to the contextual economics perspective by demonstrating the heterogeneous nature of digital human capital accumulation within a single industry.
Regional Inflation Analysis Using Social Network Data
Authors:   Omsk Regional Division of the Siberian Main Branch of the Central Bank of the Russian Federation, Shcherbakov V. S. , Karpov I. A. ,   HSE University
Published: October 2024

Inflation is one of the most important macroeconomic indicators that have a great impact on the population of any country and region. Inflation is influenced by a range of factors, including inflation expectations. Many central banks take this factor into consideration while implementing monetary policy within the inflation targeting regime. Nowadays, a lot of people are active users of the Internet, especially social networks. It is hypothesised that people search, read, and discuss mainly only those issues that are of particular interest to them. It is logical to assume that the dynamics of prices may also be in the focus of users’ discussions. So, such discussions could be regarded as an alternative source of more rapid information about inflation expectations. This study is based on unstructured data from VKontakte social network used to analyse upward and downward inflationary trends (on the example of the Omsk region). The sample of more than 8.5 million posts was collected between January 2010 and May 2022. The authors used BERT neural networks to solve the problem. These models demonstrated better results than the benchmarks (e.g., logistic regression, decision tree classifier, etc.). It makes possible to define pro-inflationary and disinflationary types of keywords in different contexts and get their visualisation with SHAP method. This analysis provides additional operational information about inflationary processes at the regional level The proposed approach can be scaled for other regions. At the same time, the limitation of the work is the time and power costs for the initial training of similar models for all regions of Russia.
A Re-interpretation of Zion in Isaiah 62:1-5 Focusing on the Personification of Queen Zion
Authors: Choi Yungab
Published: October 2024

This study conducts a contextual, literary and theological interpretation of the theme of Zion in Isa 62:1-5 that focuses on the rhetorical and intertextual implications of Queen Zion. The method explicates the logical interrelationship and theological meaning of three enigmatic motifs in this passage-crown, renaming and marriage-within the literary and canonical context of the book of Isaiah. The study uses the mirror text theory adopted by Willem A. M. Beuken in Isaianic interpretation to consider the appearance of Queen Zion with these three conspicuous motifs. It is argued that Queen Zion retrospectively reflects the female Zion in Isa 1:7 (a daughter Zion) and 49:14-21 (an abandoned wife and childless mother) and prospectively foreshadows her in Isa 66:7-14 (a glorious mother). Furthermore, this study demonstrates that Isa 62:1-5 functions as a mirror text in the book of Isaiah and demonstrates how we conceive the reading of Isaiah as a unified whole.
Comparison of outerplanarity and generalized outerplanarity properties for Cayley graphs of planar semigroups
Authors:   Omsk State Pedagogical University, Solomatin D.V.
Published: October 2024

We have found two infinite series of semigroups whose Cayley graphs have an outerplanarity property equivalent to the generalized outerplanarity property of their Cayley graphs, but not equivalent to the planarity property, and one infinite series of semigroups whose Cayley graphs have a generalized outerplanarity property equivalent to the planarity property of their Cayley graphs, but not equivalent to outerplanarity. It is proved that the Cayley graph of a finite semigroup is not isomorphic to any of the forbidden Sedl´aˇcek’s subgraphs by the characteristic property of generalized outer planarity with any orientation and edge coloring.
Modern Komi-Permyak phytonymic vocabulary in connection with issues of its lexicographying
Authors:   Institute for Linguistic Studies, Russian Academy of Sciences, Bobrova Maria V. , Gaidamashko Roman V. ,   Institute for Linguistic Studies, Russian Academy of Sciences
Published: October 2024

The article analyzes the vocabulary of the thematic field “Plant World” in the modern Komi-Permyak language in the lexicographical aspect. The publication in 2021 of the monographs Materials for a Dictionary of Komi-Permyak Names of Mushrooms and Materials for a Dictionary of Komi-Permyak Names of Plants was an important step in the development of Komi-Permyak lexicology and lexicography, but at the same time raised a number of significant questions for the lexicography of the Komi-Permyak language and other Finno-Ugric languages of Russia. The aim of this article is to generalize and clarify the principles of organization of Komi-Permyak vocabulary, which must be taken into account to improve the quality, accuracy and verifiability of word descriptions in thematic bilingual dictionaries. The main objective is to summarize observations of the vocabulary of flora, which are reflected in scattered publications and handwritten works. The authors start from a number of fundamental issues of lexicographic description of vocabulary in a thematic (botanical) dictionary: (1) an urgent problem is the compilation of a dictionary of Komi-Permyak phytonyms, including all available data; (2) the spelling of heading words should be based on consistent spelling principles, but in a dictionary entry it is advisable to reflect all spelling options available in the sources; (3) the preparation of a phytonym dictionary should be carried out with the direct cooperation of philologists and specialists in local flora (botanists); the dictionary entry must be accompanied by links to sources, territorial and temporal references of the units described; (4) to increase the scientific value of lexicographed materials, it is advisable to accompany linguistic data with additional information of strictly linguistic, philological, encyclopedic and other nature. Within the framework of these conceptual approaches, pressing issues of the spelling of Komi-Permyak phytonyms are considered; important elements (zones) of a dictionary entry are analyzed; issues of collection, selection and certification of data, interpretation of semantics, illustration of definitions, inclusion of additional information (onomastic parallels, etymological, encyclopedic references, ethnolinguistic comments, etc.) are discussed. The developed principles are aimed at improving the quality of lexicographying, combining the approaches of traditional and modern (anthropo-oriented) lexicography. The authors declare no conflicts of interests.
A new large Serbian-Russian dictionary (а general conception and problems of lexicographic description)
Authors:   University of Belgrade, Dragićević Rajna , Korolkova Maria D. ,   Institute for Linguistic Studies, Russian Academy of Sciences, Ryzhova Daria А. ,   National Research University Higher School of Economics, Shapich Yulia L. ,   Center for Russian Science and Culture “Russian House”, Yakushkina Ekaterina I. ,   Lomonosov Moscow State University
Published: October 2024

At Moscow State University, the team of authors is working on a new large Serbian-Russian dictionary (SRD) based on the descriptive dictionary of the Serbian language (2018). Currently the first five letters of the Serbian alphabet have been prepared. The dictionary is aimed at the Russian-speaking user. Compiling the SRD, the vocabulary of the descriptive dictionary is edited and updated. In this case, the authors take into account whether the word belongs to the Serbian or Russian national cognitive base, word-formation and semantic adaptation of borrowings, motivational, semantic and expressive potential of the Serbian word, etc. The dictionary is compiled in the Microsoft Word editor, but at the same time the authors work on the transferring of the already prepared materials onto the OnLex electronic lexicographic platform, which will significantly expand the functionality of the new dictionary. The design of the dictionary entry is based on the entry in the Serbian descriptive dictionary. When transforming an original descriptive entry into an SRD one, many difficulties may arise because of differences in the traditions of grammatical description or definition of collocations, phraseological units, metaphors, etc. However, the main problem that arises is the correlation of the semantics of the original Serbian word with the semantics of the Russian word. Within one meaning, the problem is connected with the selection of equivalents, and within the polysemantic structure, in the adequate representation of this structure in a bilingual dictionary and its correlation with Russian equivalents. A great difficulty for lexicographic description is the functional and stylistic inconsistencies of equivalents. When displaying the structure of a polysemantic Serbian word in the dictionary, it is important to present the entire set of meanings of the original Serbian word. Working on the fragmentation of a polysemantic structure, the authors focus, among other things, on Russian equivalents and try to separate meanings that are characterized by different synonymous series of Russian equivalents. When it is possible, they take into account the achievements of lexical typology. The characteristic differences between Serbian and Russian vocabulary should become the subject of a systematic description in the future. The authors’ work on the dictionary made it possible to identify a number of problems important not only for comparative, but also for Serbian lexicology. One of them is the status in the Serbian literary language of words predominantly used in the west of the Serbian linguistic territory. The authors declare no conflicts of interests.
Markers of linguistic tolerance/intolerance in modern phraseological dictionaries
Authors:   Astrakhan State University, Lapteva Maria L. , Vasilyeva Yulia A. ,   Astrakhan State University
Published: October 2024

The relevance of the article is determined by the need to identify the phraseological capacity of the Russian language tolerance and intolerance, which cannot be done without referring to the data of modern lexicographic sources. Linguistic tolerance is understood as the presence in the language of verbal means available for characterizing the sphere of communication, unfolding in the categories of “one’s own/someone else’s”, and for applying positive judgments, excluding hostility and aggression, in a speech situation of interaction with those who differ in some way from the speaker. Linguistic intolerance refers to the use of humiliating, offensive, disparaging words and statements. The aim of the article is to identify the degree of phraseological marking of tolerance and intolerance in the system of the modern Russian language. The study was conducted with the use of material from a number of authoritative phraseological dictionaries, as well as dictionaries of lexical and phraseological synonyms published after the year 2000. It has been determined that manifestations of linguistic tolerance/intolerance at the phraseological level are procedural indirectly derived units of the semantic class “Attitude”, i.e., units that reveal interpersonal or social relations. These include phraseological units of emotional and evaluative attitude or external manifestation of attitude, affection for contact or, on the contrary, alienation. The same number of semantic signs of linguistic tolerance and linguistic intolerance has been defined, forming the semantic binomials “condescension - contempt”, “sympathy - condemnation”, “responsiveness - indifference”, “attention - rejection”, “consent - refusal”, “conventionality - impudence”. These meanings are recognized as nationally and culturally significant and relevant, forming a special fragment of the Russian language worldview. Quantitative indicators of the representation of phraseological units in the language demonstrate the asymmetry of tolerance/intolerance. In each semantic pair, verbalizers of intolerance dominate, which indicates the low degree of importance of tolerance for Russian linguistic culture. The analyzed units are included in the current corpus of Russian phraseology, since they are found in the dictionaries of all phraseographic publications of the first quarter of the 21st century. The difficulty of parameterizing phraseological units as verbalizers of linguistic tolerance/intolerance is caused by the borrowed nature of the concept “Tolerance”, and, consequently, by the “alienity” of the system of ideas about what attitude and behavior is considered intolerant. The authors declare no conflicts of interests.
Potamogeton wrightii (Potamogetonaceae) naturalized in Ohio, U.S.A.
Authors: Tippery Nicholas P. , Warman Mark J.
Published: October 2024

In 2021, an unknown Potamogeton species was discovered in Alum Creek Lake in central Ohio. After we were unable to identify the plants as any known North American species, we expanded our search to include all pondweed species and incorporated molecular data to aid in the identification. DNA sequences were obtained for the nuclear internal transcribed spacer (ITS) region and the plastid trnT-trnF region and compared against previously reported sequences for Potamogeton species. Morphological and molecular data consistently identified the plants as P. wrightii, a species native to eastern Eurasia and Malesia and not previously reported to be naturalized in North America.
Nested PCR amplification of Salmonella Typhi from extracted wastewater concentrate v1
Authors: Fitz Shannon , Shaw Alex , Owusu michael , Abraham Dilip , Spadar Anton
Published: October 2024

This standard operating procedure describes nested PCR protocols for the generation of amplicons from V. cholerae and S. typhi. PCR primers have been sourced from the literature or designed using Geneious, with primer pooling tested to minimise primer-primer interactions. Whilst the first round of PCR may be sufficient alone for detection (and will yield larger amplicons) a second round of PCR has been included to increase sensitivity.
Learn Oral Skills Keeping in Mind the Issues of Interest
Authors: Huancayo Vladimir Román Gutiérrez
Published: October 2024

As has been said on many occasions, students’ interest in specific topics is among the factors that determine autonomous and self-directed learning. This paper shows the results obtained from the experience of 60 accounting students from a Peruvian technological institute who recorded videos on topics of their interest. Mixed methods research was carried out. The quantitative stage consisted of two parts. The first one measured the difference between the pre-and post-tests, before and after the project. Second, they proposed a validated model, considering three constructs: oral skills, language difficulties, and video types; for this reason, a confirmatory factor analysis (CFA) was applied from a survey completed by students at the end of the project. The qualitative stage consisted of coding the responses given by students to the survey's open-ended questions. This research highlighted the improvement of oral skills and an acceptable factor structure (RMSEA 0.058; CFI 0.965; and TLI 0.958) concerning students' opinions. The outcomes of this research are promising, with a significant enhancement in students' oral skills, increased confidence in public speaking, and a positive learning experience that can inspire and shape future educational practices.
Integrating Form-Focused Instruction and Discovery Approach for Developing EFL Writing Skills of Saudi Learners
Authors: Alian Eman Mahmoud Ibrahim
Published: October 2024

The current study investigated the integration of the Form-Focused Instruction and Discovery Approach termed Form Focused Discovery Approach (FFDA) for developing English Foreign language university students' writing skills through teaching novel. The study aims to shift from the teacher-centered approach to the student-centered one by discovering the literary text's form and meaning. Therefore, sixty female fourth-year students at King Khalid University in Saudi Arabia were randomly chosen and divided into two groups: an experimental and a control one taught for two months. The experimental group received instructions through the Form-Focused Discovery Approach (FFDA), examining various tasks ranging from exploring, anticipating, questioning, discussing, analyzing, reconstructing, and practicing writing and reflection. In contrast, the control group received instruction through the traditional mode. A pre-post writing test for measuring skills of grammar, word choice, mechanics, organization, coherence, and style was administered. Results showed that the experimental group outperformed the control group in overall writing skills. However, for each skill, it is revealed that four primary skills have been significantly enhanced (i.e., grammar, organization, word choice, and mechanics). The other two skills (style and coherence) have been slightly improved but with no significant differences in the post-administration of the experimental group scores. More practice should be given to recognizing the text's unity and style when implementing FFDA to enhance EFL writing skills.
Collective Memory and the Recasting of Post-Civil War African-American Identity in Selected Toni Morrison's Novels
Authors: Boularas Samiha
Published: October 2024

After the emancipation, the African-Americans come to recognize the necessity of rebuilding their identity and redefining their blackness. This recognition is seemingly motivated by their post-civil war need to demolish the negative stereotypes long established and believed about them, change the American cultural context and enhance their living conditions. Taking into consideration its performative role and discursive nature, the African-American writers arrive to make an exceptional use of collective memory and its genuine narratives in order to recast their unique identity. As it has formerly been noticed, the process of collective remembering follows three major steps that are: construction, reconstruction and deconstruction. No doubt, these techniques have helped to condemn the lingering racist practices and their destructive outcomes, provide a more accurate conception of blackness and ultimately transcend the earlier established blacks' image into another one which is strong, innovative and full of possibilities. The theoretical background of this research will subsequently be applied on a number of Toni Morrison's novels.
TECHNICO-ECONOMIC OPTIMUM VALUE OF THE THERMAL BEHAVIOR OF THE COMPRESSED EARTH BLOCK STABILIZED WITH MUTUAL EFFECT OF WATER AND CEMENT CONTENTS
Authors: Zakham N. , Aberdane I. , Bouassria K. , Elhadrati N. , Nasla S. , Rhaffari Y. El , Cherraj M. , Bouabid H. , Samaouali A. , Gueraoui Wassim
Published: October 2024

Achieving optimal thermal comfort in earthen buildings requires careful consideration of material type and its thermal performance, especially in relation to cement and water contents. This study focuses on analyzing the thermal conductivity of cement-stabilized compressed earth blocks (CEBs) across varying water content ratios. The objective is to enhance understanding of how cement and water contents jointly influence the thermal conductivity of CEBs and determine the technico-economic optimum (TEO) for thermal conductivity in cement-stabilized earth construction. Experimental analysis involved measuring thermal conductivity using the hot ring method, complemented by mathematical formulations integrating material parameters and test conditions. A numerical model is developed to simulate thermal conductivity evolution based on the combined effects of cement and water contents. The study found that thermal conductivity exhibits an S-curve response to changes in both cement and water contents. Initial additions of cement minimally affect thermal conductivity, followed by a rapid increase before plateauing at higher cement content levels. The model accurately predicts conductivity values beyond those tested experimentally. This work underscores the critical role of cement and water contents in shaping the thermal properties of CEBs. Establishing a technico-economic optimum highlights the balance necessary to maximize thermal performance while considering practical implications. These findings provide valuable insights into optimizing thermal conductivity in cement-stabilized earth building materials.
FLOW OF EYRING-POWELL HYBRID NANOFLUID ON A SHRINKING CYLINDER WITH JOULE HEATING AND VISCOUS DISSIPATION
Authors: Waini Iskandar , Khan Umair , Zaib Aurang , Ishak Anuar , Pop Ioan
Published: October 2024

This paper deals with the AA7075-AA7072/methanol hybrid nanofluid flow incorporated with the Eyring-Powell model. The fluid flows over a shrinking cylinder subject to magnetohydrodynamic (MHD), Joule heating, and viscous dissipation. The governing equations are transformed into similarity equations by employing suitable similarity transformations. Then, MATLAB software is used to program the code with the aid of the bvp4c function. The findings prove that the dual solutions are generated for a certain domain of shrinking parameters. Besides, higher values of heat transfer and skin friction are obtained by the imposition of the magnetic and Eyring- Powell fluid parameters. However, the heat transfer is reduced in the presence of viscous dissipation with a higher Eckert number.
ANALYTICAL AND NUMERICAL STUDY OF THE THERMOMECHANICAL BEHAVIOR OF FUNCTIONALLY GRADED CYLINDRICAL TANKS
Authors: AAMERY Salma EL , IDRISSI Hanane SGHIOURI EL , ACHOUYAB El Hassan
Published: October 2024

In this study, we conducted an in-depth analysis of the thermomechanical behavior of cylindrical storage tanks with Functionally Graded Materials (FGMs), integrating both analytical and numerical approaches. We developed analytical models to predict temperature and stress distributions within these FGM tanks and validated them through finite element method (FEM) simulations. The results highlight the significant impact of property gradients on thermomechanical performance, revealing non-linear temperature variations across the tank’s thickness and complex stress gradients. These insights are crucial for designing more robust and efficient tanks for industrial applications, particularly under extreme thermal conditions. The findings underscore the importance of considering material property gradients in the design and analysis of thermal storage tanks.
Emotional Differentiation and Its Relationship to Emotion Regulation: Research Overview
Authors: Rasskazova M.A.
Published: October 2024

The article reviews of a number of modern foreign studies of emotion differentiation and its role in emotion regulation processes. An attempt is made to generalise the currently existing results on the connection of emotional differentiation with various personality and behavioural constructs, as well as about its role of in psychological well-being. The main advantages of high negative emotional differentiation and disadvantages of low negative emotional differentiation are identified. Trait and momentary emotional differentiation was distinguished, difficulties in conceptualising and measuring the momentary emotional differentiation were outlined, the lines of future studies of the relationship between both measures of emotional differentiation and emotion regulation were described. Several studies of the role of emotional differentiation in the choice and effectiveness of putatively adaptive and maladaptive emotion regulation strategies were analysed. It was found that higher levels of negative emotional differentiation were related to the effectiveness of emotion regulation strategies rather than to their choice. Similarities and differences in the methodology and obtained results of the analysed studies are identified. Issues requiring further research are formulated, prospects for future research are described. The practical significance of the research findings for the use in psychotherapy and treatment of psychological disorders is outlined.
Age and Women’s Infertility: National and Foreign Researches’ Review
Authors: Timchenko D.D.
Published: October 2024

The article attempts to review national and foreign studies over the past twenty years on the problem of psychological characteristics of women diagnosed with infertility in different age groups. The review provides a definition of infertility recommended by WHO, briefly analyzes the evolution of views on the psychological origins of infertility: the psychosomatic model, popular at the beginning of the 20th century, and the modern biopsychosocial approach are considered. The emphasis is on the age-specific experience of infertility as an individual psychological reaction to the diagnosis. The problem of age-related infertility and its prevalence in the modern world is being raised. Medical aspects of impaired fertility are described, such as decreased quality and quantity of eggs cells. The relationship between stress, infertility and age is revealed. The factors influencing the risk of developing anxiety and depressive symptoms during treatment are analyzed, as well as psychological reasons for refusal of treatment. The connection between the socio-cultural context and the psycho-emotional state of infertile women is emphasized. The review studies the psychological consequences of infertility in developing countries, as well as in countries with pronatalist policies.
The Role Expectations in the System of Interaction between Subjects of the Educational Process
Authors: Orlov V.A. , Krushelnitskaya O.B. , Terekhova E.S.
Published: October 2024

The article presents an analysis of foreign studies devoted to the role expectations of participants in the educational process as an important condition for the effectiveness of training and education of students. It is shown that, along with significant achievements in understanding the causes and mechanisms of role expectations, most researchers focus primarily on teachers’ expectations of the academic achievements of schoolchildren and students. The prerequisites for the formation of teachers' role expectations are studied, such as socio-economic status, gender, national and racial characteristics of students, as well as the specific culture of the educational institution. The problem of consistency of mutual role expectations of teachers and students as the basis for building their interpersonal interaction has been less studied. It was not possible to identify works in which mutual expectations of participants in the educational process are considered as a unified system of pedagogical interaction that influences the effectiveness of teaching and education of schoolchildren. Based on a theoretical analysis of foreign studies of role expectations, a conclusion is made about the need for further study of this phenomenon, taking into account the goals and objectives of the professional activities of school teachers, as well as the interests, personal values and needs of other participants in the educational process, mainly students and their parents.