bluuebunny/crossref_metadata_2025 huggingface dataset:
Associations between milk production level, calving interval length, lactation curve parameters and economic results in Holstein cows
Authors:   Department of Animal Husbandry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague 6 - Suchdol, Czech Republic, Němečková Dana
Published: August 2023

The objective of work was to evaluate effects of milk production level (MY1≥9500 kg, n=23; MY2 = 8000-9499, n=28; and MY3≤7999 kg, n=29) and calving interval length (CI1≥440 days, n=22; CI2 = 400-439 days, n=33; and CI3≤399 days, n=25) on the lactation curve parameters calculated using MilkBot® Model and economic profitability of Holstein dairy cow breeding. Data were obtained from 80 Holstein cows on 1st to 4th parity calved between January and August 2012 on the dairy farm of the Czech University of Life Sciences Prague in Czech Republic. Lactation curve parameters differed more in relation with milk production level compared to calving interval length. Lactation curve in cows with the highest MY was characterized with significantly higher overall magnitude (scale parameter) of milk production (P<0.01), higher peak yield (P<0.01) which occurred later (P<0.05) and higher persistence (P<0.05). Due to combination of higher persistence and total yield, average milk yield per day of calving interval was significantly (P<0.05) higher in cows with middle CI than in short CI. Optimal calving interval length should be assessed in relation with lactation persistence and milk production level. The highest individual profitability was reached by cows in MY1 and CI2 group.
Production technology and some quality parameters of Njeguši cheese
Authors:   Biotechnical Faculty, Mihaila Lalica 1, 81000 Podgorica, Montenegro, Mirecki Slavko
Published: August 2023

Industrialization of agricultural production and depopulation of areas that are recognized by traditional products, reached its peak during the last few decades. This represents a significant risk that the technology of traditional agricultural products, especially cheeses, can go into oblivion. Njeguši cheese is one of the famous Montenegrin traditional dairy products which originates from the mountain Lovćen and its peripheral areas. Produced by traditional technology, it belongs to a group of full fat, hard cheeses. Owing to its characteristic, spicy taste and pleasant odour, Njeguši cheese can be compared with some of the most famous hard cheeses. Originally it is made from ewe’s milk, but also, cow’s, goat’s and their mixture in different proportions, are increasingly used, which may be the treat to the originality of Njeguši cheese. The present study offers a description of original Njeguši cheese technology, followed by analysis of the chemical quality of ewe’s milk, cheese and whey. Thereat milk, cheese and whey samples were taken from 5 households located at the place of cheese origin - the Njeguši village. Chemical quality of ewe’s milk, cheese and whey was determined by method of FTIR spectrophotometry. Milk fat in the dry matter and moisture in cheese non-fat basis were mathematically calculated. The average content of milk fat in ewe’s milk was 4.92 %, proteins 4.59 %, lactose 4.14 % and total solids non-fat 9.46 %. Accordingly, the analysed cheeses belonged to full fat, semi-hard cheese due to 51.73 % fat in total solids and 60.07 % moisture in non-fat basis. The only deviation from original technology was shortening of the ripening period. Apart from the main objective - the preservation of the original technology, this study could significantly contribute to the process of protection of origin of Njeguši cheese, because the technology of cheese fulfilled the requirements listed in the National Law on the protection of designations of origin.
O que estamos fazendo quando educamos? Um diálogo sobre a atividade educativa com Hannah Arendt
Authors: Almeida Vanessa Sievers de
Published: August 2023

Este artigo estabelece um diálogo entre o ensaio “A crise na educação” da filósofa Hannah Arendt e seu livro A condição humana. Neste, a pensadora apresenta uma fenomenologia das atividades humanas elementares – o trabalho, a obra e a ação – ou, como ela afirma, da vita activa. O ensaio, por sua vez, qualifica a educação como uma atividade elementar da sociedade humana. A partir dessa interface entre os dois textos coetâneos reflito sobre a questão: o que fazemos quando educamos? – parafraseando, assim, a pergunta central de A condição humana: “o que fazemos quando estamos ativos?”. O intuito não é encontrar uma correspondência exata entre a educação e uma das três atividades da vita activa, mas pensar sobre alguns aspectos que aproximam ou distinguem a atividade educativa delas. Em especial busco aproximações entre o pensamento de Arendt sobre educação e suas abordagens do trabalho e da obra que tem atraído menos o interesse dos estudiosos da educação. O diálogo ocorre a várias vozes, pois para ele trago também narrativas sobre experiências docentes, literárias e outras, buscando lê-las à luz do pensamento arendtiano, o qual, por sua vez, é questionado a partir das experiências escolares. Enfim, trata-se de um exercício de pensamento polifônico, sem pretensões de exaurir o tema abordado, que dá relevo a alguns trechos de A condição humana ainda pouco explorados para se pensar sobre a atividade educativa.
Mechanochemistry: A Green and Fast Method to Prepare a New Generation of Metal Supported Catalysts
Authors: Danielis Maila , Colussi Sara , Divins Núria J. , Soler Lluís , Trovarelli Alessandro , Llorca Jordi
Published: August 2023

In this review, we report on recent advances in the use of mechanochemistry to synthesise new catalytic materials. We report recent results obtained by our groups where a rational design of the milling parameters led to the synthesis of advanced materials with novel properties such as unconventional arrangements of metals on the surface of oxide support materials, highly dispersed metals or the stabilisation of species in particular oxidation states. These properties resulted in superior catalytic performances of the mechanochemically-synthesised catalysts compared to their counterparts prepared by traditional impregnation methods. To illustrate these advances, we review the progress made in two important fields of catalysis where noble metals are used: (i) emission control catalysis using palladium-based materials; (ii) the development of photocatalysts to produce hydrogen based on gold and palladium materials.
Transzilvanizmus: haza és szülőföld, konzervativizmus és progresszió között
Authors: Szász László
Published: August 2023

Recenzió. K. Lengyel Zsolt: Haza és szülőföld. Tanulmányok a transzilvanizmus történetéhez (1867–1945). Kolozsvár: Erdélyi Múzeum Egyesület–Kriterion Könyvkiadó (20. század 8.), 2022. 240 oldal
Technology for simulation models of power transformers with arbitrary design of active part
Authors:   Ivanovo State Power Engineering University, Tikhonov A.I. , Karzhevin A.A. ,   Ivanovo State Power Engineering University, Stulov A.V. ,   LLC “NPK AVTOPRIBOR” (Vladimir), Tikhomirov D.M. ,   Ivanovo State Power Engineering University, Rozin V.E. ,   Ivanovo State Power Engineering University
Published: August 2023

Existing simulation models of power transformers that operate, for example, in the MATLAM Simulink SimPowerSystem environment, are based on an ideal transformer model. It allows using this model as an autonomous link in a complex electrical circuit. The main disadvantage of such models is the difficulty to consider non-standard versions of the magnetic circuit and special schemes for connecting winding elements when modeling. Particularly significant problems arise when modeling special transformers of the certain classes. At the same time, traditionally, when modeling the transient modes of transformers, a different approach is used. It is based on the use of inductance matrices which allows considering all the design features of the active part of the transformer. The disadvantage of this approach is the need to describe an external electrical circuit in addition to the transformer. Therefore, the problem to develop a modern technology for simulation models of transformers with an arbitrary design of the active part is topical. This model meets the requirement for the autonomy of the transformer model from the external circuit model. The authors have used the methods of modeling electrical and magnetic circuits based on the theory of ordinary differential equations, and simulation method using the MatLab Simulink SimPowerSystems package. A technology has been developed for simulation models of transformers with an arbitrary design of the active part based on the use of typical subsystems. An algorithm for matrix of inductances based on the main magnetic field of the transformer with the existing equivalent circuit of the magnetic circuit is given. The authors have presented a diagram of a three-phase transformer model developed using the proposed technology, as well as the results of comparing the current curves in the primary and secondary windings of the transformer when it is turned on at idle and with a resistive load. The results are obtained using the existing and new models. The results of the study can be used to design general industrial and special transformers in design companies and in manufacturing environment. The developed technology can give a special effect when it is used at the R&D stage to study the operating modes of transformers in case the enterprise has no experience to design and manufacture them.
Parametric model of synchronous reluctance motor with TLA-rotor in steady-state and transient modes
Authors:   Ivanovo State Power Engineering University, Karaulov V.N. , Dorzhinkevich A.F. ,   Ivanovo State Power Engineering University
Published: August 2023

There is considerable practical and scientific interest in synchronous reaction motors (SynRM) with TLA rotor. The core of the TLA rotor has a transversal charge, internal slots, and highly saturated areas. The configuration of the rotor slots is complex and diverse. The task to develop a parametric model of the SynRM with a TLA-rotor designed for calculation of steady-state and transient modes of the motor is relevant. The classical parametric model of SynRM based on the theory of two reactions is used. The calculation method for the parameters of the SynRM model with TLA rotor is presented. The method uses the results of field calculation of two static states of the magnetic field. The steady-state conditions of SynRM are calculated according to the engineering formulas derived from the equation of equilibrium stresses in the stator phase. The Park-Gorev equations are used to calculate the transient modes of the SynRM. Field models of the SynRM under study at longitudinal and transverse rotor positions are presented. Main harmonics of magnetic field in the gap and their dependence on armature current are calculated. Formulas to calculate the inductive parameters of armature winding and performance characteristics of SynRM are given. Differential equations to calculate processes in SynRM are given. The parametric model is used to calculate performance characteristics of SynRM, frequency start process, electromechanical process of SynRM operation in case of asymmetric power supply. The calculation results are compared with the results of field simulation of SynRM with TLA rotor in the Ansys Maxwell environment. The classical parametric model of the synchronous machine based on the theory of two reactions allows fast and high-quality analysis of steady-state and transient modes of operation of a synchronous reactive motor with TLA-rotor under various conditions of power supply and mechanical load, including abnormal ones.
Responsibility of Public Legal Entities for Debts of State and Municipal Institutions at the expense of Budget Funds
Authors: Yagovkina V. A.
Published: August 2023

The paper analyzes the causes and conditions of subsidiary liability of founders for debts of state and municipal institutions paid out of budget funds. The author concludes that it is necessary to take into account the purpose of accepting such obligations by the budget and the instruments that led to their occurrence, as well as the type of state or municipal institution. It is noted that debt collection of budgetary and autonomous institutions out of budgets can occur only in the case of the public nature of contracts from which obligations arise, which, in turn, imposes restrictions on the creditor and affects the balance of rights and legitimate interests of the parties to the contract. Before applying for debt collection of a budgetary or autonomous institution directly out of the budget, it is necessary to prove that there is no possibility of debt collection from the principal debtor. The author also provides a brief analysis of the approaches of the legislator and the courts to collecting debts of unitary enterprises from public legal entities out of budgetary funds. Based on this analysis, it is concluded that approaches to liability for debts of unitary enterprises and state and municipal institutions differ, but in general, there is some similarity, which is most likely caused by the decentralized nature common to their finances.
The Concept of Family Business Legitimation in the Context of Private Law and Public Law Regulation
Authors: Levushkin A. N.
Published: August 2023

In the modern economic and legal model of social relations, family members take the most active and direct part in entrepreneurial legal relations, the essence of which is often reduced to the organization of business processes by spouses, children and other relatives within the framework of the concept of a family business form of entrepreneurship. We believe that this segment of economic-social and family entrepreneurship is quite significant from the point of view of the doctrine and practice-oriented direction of the implementation of the modern theory of entrepreneurship aimed at providing additional support for small and medium-sized businesses, quite often organized by means of family and legal ties, which does not exclude its application for large corporations and holdings. The paper proposes a modern concept of legitimation of family entrepreneurship through the prism of private law and public law regulation, substantiates the need for additional state support for this form of doing business, provides conclusions and some proposals for reforming legislation aimed at legalizing family entrepreneurship in Russia, publishes a memorandum on the current state and further implementation of measures to legalize family entrepreneurship in the post-reform period in Russia.
Legal Support of Environmental Safety of the Arctic Zone of the Russian Federation in the Exploration and Production of Oil and Gas under Sanctions
Authors: Agafonov V. B.
Published: August 2023

The paper analyzes and assesses the prospects for the development of the Russian legislation in the field of environmental safety of the Arctic zone of the Russian Federation in the exploration and production of oil and gas. In the context of the existing risks and threats to energy security, the author proves that the use of traditional types of energy resources will still have an important role in the structure of the fuel and energy balance of almost every modern state. This results in the growing importance of the Arctic zone of the Russian Federation, which should be considered as an important geostrategic object, the use of natural resources of which will make it possible to gain energy independence and sustainable development for present and future generations in the long term. The paper highlights the modern environmental and legal problems of the Arctic zone, primarily the processes and consequences of global warming, as well as the problems of ensuring environmental safety in the transportation of oil and petroleum products, including on the continental shelf of the Arctic zone of the Russian Federation. Possible ways to solve legal problems under sanctions are suggested. The author proves that it is necessary to update the existing documents of state strategic planning in the field of environmental protection, subsoil use, as well as in the field of ensuring sustainable socio-economic development of the Arctic zone of the Russian Federation.
EEG alpha band characteristics in patients with a depressive episode within recurrent and bipolar depression
Authors: Bokhan Nikolay A. , Galkin Stanislav A. , Vasilyeva Svetlana N.
Published: August 2023

BACKGROUND: The search for biological markers for the differential diagnosis of recurrent depression and bipolar depression is an important undertaking in modern psychiatry. Electroencephalography (EEG) is one of the promising tools in addressing this challenge.
AIM: To identify differences in the quantitative characteristics of the electroencephalographic alpha band activity in patients with a depressive episode within the framework of recurrent depression and bipolar depression.
METHODS: Two groups of patients (all women) were formed: one consisting of subjects with recurrent depressive disorder and one with subjects experiencing a current mild/moderate episode (30 patients), and subjects with bipolar affective disorder or a current episode of mild or moderate depression (30 patients). The groups did not receive pharmacotherapy and did not differ in their socio-demographic parameters or total score on the Hamilton depression scale. A baseline electroencephalogram was recorded, and the quantitative characteristics of the alpha band activity were analyzed, including the absolute spectral power, interhemispheric coherence, and EEG activation.
RESULTS: The patients with recurrent depressive disorder demonstrated statistically significantly lower values of the average absolute spectral power of the alpha band (z=2.481; p=0.042), as well as less alpha attenuation from eyes closed to eyes open (z=2.573; p=0.035), as compared with the patients with bipolar affective disorder.
CONCLUSION: The presented quantitative characteristics of alpha activity are confirmation that patients with affective disorders of different origins also display distinctive electrophysiological features which can become promising biomarkers and could help separate bipolar depression from the recurrent type.
Redefining Harmony
Authors:   , Keefer Eric Allen , Wagner Michael G.
Published: August 2023

This thesis establishes a standard of terminology surrounding the mechanics and aesthetics of video games and utilizes them to present a new methodology for evaluating ludonarrative relationships. In the pursuit of a deeper conversational tool for the discussion and understanding of complex dynamic interactivity in video games, polytonality acts as a lens to observe every aspect of a work. This was accomplished by researching and examining classical game studies assumptions of players, academic game development studies, and player-focused motivation models. After formulating the theoretical system, this thesis tested its polytonal hypothesis by surveying the player perception of ludic and narrative content present in four case studies with an effective sample size of 359. The case studies involved in this research included Stardew Valley (2016), World of Warcraft (2004), Outer Wilds (2019), and Bloodborne (2015). Following the quantitative results of the survey, qualitative open-ended questions were also critically observed for trends and inconsistencies within the data set to provide a clearer view on the ludonarrative dissonance, consonance, harmony, and/or resonance.
Analysis of Models of Pulsatile Flow in Viscoelastic Vessels
Authors:   , Kim Hyeju , Ambrose David M.
Published: August 2023

We study dispersive models of fluid flow in viscoelastic vessels, derived in the study of blood flow. The unknowns in the models are the velocity of the fluid in the axial direction and the displacement of the vessel wall from rest. We prove that one such model has a well-posed initial value problem, while we argue that a related model instead has an ill-posed initial value problem; in the second case, we still prove the existence of solutions in analytic function spaces. Finally, we prove the existence of some periodic traveling waves.
The approach of society regarding the violence against healthcare providers
Authors: UÇAR Yusuf Gazi , KUŞ Celal , GÜMÜŞTAKIM Raziye Şule , ERYILMAZ Mustafa Emre
Published: August 2023

Objective: The aim of this study is to investigate the society’s approach to violence and to offer solutions to prevent violence in health.

Method: This study was conducted in Kahramanmaraş province in February and March 2020. The questionnaire of 50 questions was applied to 1306 people face-to-face.

Results: 53.8% of our participants were female. Among the people who had an argument with healthcare providers, 53.0% of them were male. 40.2% of the people who had an argument were aged 25-40. 78.1% have a high school or less education. 86.6% of the ones who considered violence as a tool of demanding justice had high school. Only 19.2% of the people who consider violence as demanding justice had information about code white. 82.9% of the people who state that the most significant reason for the violence is the attitude of healthcare providers had a high school or lower level of education. Participants were asked about the reasons for violence, and 44.0% of them answered that it was the presence of angry and aggressive people.

Conclusion: Violence in the health sector has many complicated and intertwined aspects. Its solution is for the people in charge to do their part.
HUBUNGAN KEPRIBADIAN BIG FIVE DENGAN PERILAKU BERKENDARA BERISIKO PENGENDARA MOTOR SISWA SMA
Authors: Fatmawiyati Jati , Al Farizi Reza Hanif , Chusniyah Tutut
Published: August 2023

Abstract: This research aims to determine the role of personality on risky driving behavior of high school students. This study is important to do, because the attitude of the motorbike rider causes a lot of traffic accidents. Data collection using the risky driving behavior scale from Iversen (2004) which has been adapted into Indonesian by Alfazi (2018) consists of 24 items. All items are valid with a validity value of 0.309–0.778 and a reliability of 0.688.  Personality instrument uses Extra-Short Big Five Iventory-2 by Soto and John (2017) which has been adapted by Tresnawaty and Izdihar (2020) which consists of 15 items. The validity shows a value of 0.318–0.47 with a reliability of 0.611. The sample is 119 students of SMAN 1 Ngunut Tulungagung, grades 10-12 who rode motorbikes and distributed questionnaires using google form. Data analysis using multiple regression, previously tested for normality, linearity, and heteroscedasticity. The results of hypothesis testing show that personality is a predictor of risky driving behavior. However, when viewed pertrait, only agreeableness and neuroticism significantly affect risky driving behavior. Meanwhile, openness to experience, conscientiousness and extraversion are not significant.

Abstrak: Tujuan pelaksanaan penelitiaan ini yakni untuk mengetahui peran kepribadian terhadap perilaku berkendara yang beresiko siswa SMAN. Penelitian ini penting untuk dilakukan, karena sikap pengemudi motor mengakibatkan banyak  terjadi kecelakaan lalu lintas. Pengambilan data menggunakan skala risk driving behavior dari Iversen (2004) yang telah diadaptasi kedalam bahhasa Indonesia oleh Alfazi (2018) terdiri dari 24 aitem. Semua aitem valid dengan nilai validitas 0.309–0.778 dan reliabilitas 0.688. Instrumen kepribadian menggunakan Extra-Short Big Five Iventory-2 oleh Soto dan John (2017) yang telah diadaptasi oleh Tresnawaty dan Izdihar (2020) yang terdiri dari 15 aitem. Uji validitas menunjukkan nilai 0.318–0.47 dengan reliabilitas sebasar 0.611. Sampel 119 siswa SMAN 1 Ngunut Tulungagung, kelas 10-12 yang mengendarai sepeda motor dan penyebaran kuesioner menggunakan google form. Analisis data menggunakan Spearman Brown, karena saat dilakukan uji normalitas data tidak normasl. Hasil  uji hipotesis menunjukkan tingkat signifikansi dibawah 0.05 (0.04<0.05), maka ada hubungan positif antara perilaku berkendara beresiko dengan  neuroticism dan agreeableness, sedangkan hubungan opennes to experience, conscientiousness dan  extraversion dengan perilaku berkendara beresiko tidak signifikan
The Role of Risk Profile and Time Impatience on the Demand of Peer-to-peer Lending Amidst the Covid-19 Pandemic
Authors: Fathurrahman Ayif , Mukaroma Raisa
Published: August 2023

This research aims to determine the role of risk profile, time impatience, individual characteristics and location attributes on requests for peer-to-peer lending during the Covid-19 pandemic. The research method is descriptive qualitative with the research subject being the general public of D.I. Yogyakarta Province who have the potential to make peer-to-peer lending. The number of informants used as samples was 96 people selected using purposive sampling method. Data analysis techniques are data reduction, data display, and conclusion data drawing/verification. The results showed that the characteristics of the people of D.I. Yogyakarta Province belonged to the least risk-averse category, and the most patient in accepting long time requests for peer-to-peer lending. Based on the individual characteristics of the community with the least risk avoidance category, namely at the age of 21-30 years, female, living with parents, having 3-6 dependents, not working and with a total income of 1-2 million and according to location attributes the most do not avoid risks in Gunung Kidul Regency. The category of people on individual characteristics that is the most impatient in accepting long periods of time, namely at the ages of 51-60 and 41-50 years, male, owns a private house, has 3-6 dependents, is self-employed, and total income 1 million, and according to the location attribute the most impatient in receiving a long time, namely in Bantul Regency. The results of this study have implications for peer-to-peer lending, namely to better understand the characteristics of the market in DIY. So we need a marketing strategy that is able to convince the market for risk management and improve service quality.
Changes in Women’s Menstruation Cycle After COVID-19 Vaccination and Infection
Authors: Ulfa Maria , Tinartayu Seshy , Fitriani Dwi Kartika Nur , Merkusi Sweetina , Veterini Varianidia
Published: August 2023

Since the COVID-19 case was discovered, Indonesia has been one of the affected nations and found various COVID-19 infection and immunization risks. Most females are in the menstrual cycle following COVID-19 infection, regardless of the number of days between cycles, blood quantity, or menses duration. This study examines the changes in menstruation post-COVID-19 infection and vaccination. This study used a cross-sectional observational study with an online questionnaire. The 758 female respondents in Yogyakarta were divided into two groups: 532 females who received vaccination and never have been infected with COVID-19 (Group A) and 226 females with a history of being infected with COVID-19 and vaccination (Group B). The data was analyzed using SPSS 26. The results found that most respondents aged 17-25 (90.24%) were students (80.87%). Both two groups had acne on Pre-menstrual syndrome (28.16%), 5-8 days of menstrual duration (73.75%), 30 days of menstruation duration length (57%), and the regular menstruation volume (63.19%) after COVID-19 vaccination. The comparative analysis of menstruation changes in two groups (p0.05), including menstrual duration (0.771), menstrual duration length (0.609), and menstrual volume (0.476) after COVID-19 vaccination. In conclusion, there was no significant difference in menstrual change between Group A and Group B. After vaccination, healthcare professionals can promote post-COVID-19 immunization counseling and services to women who experience an abnormal menstrual cycle.
Research Insights: How to Identify Affordable High-Impact Digital Solutions for Public Services?
Authors: Cristia Julian P. , Vlaicu Razvan
Published: August 2023

Digital projects in education, healthcare, and administrative services displayed net present values and low implementation costs, but wide variation was found in net benefits across policy options A fully digital solution is not always the best option for balancing costs and benefits. Adequate integration of digital and human inputs is often necessary. Since digital applications feature low or negligible marginal cost, scale is critical in producing large social net benefits.
Effect of damage accumulation on the asymptotic behavior of stresses ahead the crack tip
Authors: Chapliy Dmitriy V. , Stepanova Larisa V. , Belova Oksana N.
Published: August 2023

The subject of this study is the analysis of mechanical fields associated with a crack tip under creep conditions, taking into account the phenomenon of damage accumulation. The objective of the study is to perform finite element modeling, using the SIMULIA Abaqus software package, of uniaxial tension of a plate with a central horizontal crack under creep conditions, taking into account damage accumulation. For numerical simulation of creep, the Bailey-Norton power law is used. The power law of creep with the help of the user procedure UMAT (User Material) of the SIMULIA Abaqus package was supplemented with the Kachanov-Rabotnov kinetic equation of damage accumulation in a related formulation. In the calculation scheme of finite elements, the crack tip was modeled as a mathematical notch and as a notch with a finite radius of curvature. As a result of the calculations, the distributions of stresses, strains, and continuity under creep conditions were obtained, taking into account the accumulation of damage over time. Radial distributions of continuity, stresses, and strains are plotted over time at various distances from the crack tip. The subject of the study was the consideration of the asymptotic of the stress distribution. As a result of the study, it is shown that in the elastic region the asymptotic corresponds to the distribution under the elastic regime, and in the creep zone the asymptotics of Hutchinson, Rice and Rosengren (HRR-solution) is satisfied for different exponents nof the power law of creep.
A comparison is made of the radial stress distributions in modeling without taking into account damage and in the case of taking into account damage accumulation. It is shown that the presence of damage significantly changes the asymptotics of the stress field in the vicinity of the crack tip.
Field of a directional low-frequency acoustic emitter in the boundary layer of the atmosphere
Authors: Semenova Irina V. , Korneeva Anastasia A.
Published: August 2023

Due to the fact that many wave emitters that a person is able to perceive belong to low-frequency ones, studies of sound fields created by such emitters are relevant. Thanks to the results obtained, it becomes possible to understand in which directions and with what power the sound field created by them will propagate, form practical recommendations for choosing the zone most suitable for observing them, solve inverse problems to determine their location. As a result of the analysis of existing models used to describe acoustic emitters, it was found that the most adequate models are those that take into account the directionality of sound sources. Among them, the parametric model proposed by G.N. Kuznetsov and A.N. Stepanov deserves special attention, which was used in the work. As a model representation of the atmosphere, a system of homogeneous layers was chosen, in one of which the source is located. For the selected models of the source and medium, the boundary value problem of finding the potential of the field created by the source is set, exact and approximate relations are obtained that can be used to solve direct and inverse problems associated with a multipole emitter. The influence of such factors as the height and frequency of the source, as well as the horizontal distance between the source and receiver on the amplitude component of the field has been studied.
On sparse approximations of solutions to linear systems with orthogonal matrices
Authors: Kiptenko Andrei V. , Izbiakov Ilia M.
Published: August 2023

This article discusses a model for obtaining a sparse representation of a signal vector in ℝk, based on a system of linear equations with an orthogonal matrix. Such a representation minimizes a target function that combines the deviation from the exact solution and a chosen functional J. The functionals chosen are the Euclidean norm, the norm |⋅|1, and the quasi-norm |⋅|0. The Euclidean norm only allows for the exact solution, while the other two allow for a balance between the residual and the parameter λin the functional, resulting in sparser solutions. Graphs are plotted showing the dependence between the coordinates of the optimal vector and the parameter , and examples are provided.
INFLUENCE OF HIGH-ORDER TERMS IN THE SOLUTION GENERALIZING THE APPROACH OF M. WILLIAMS, TAKING INTO ACCOUNT THE ANISOTROPY OF THE MATERIAL
Authors: Mushankova K. A. , Stepanova L. V.
Published: August 2023

The research is devoted to the study of the stress field at the crack tip in an anisotropic material with three mutually orthogonal axes of symmetry of the fourth order (with cubic symmetry). A plane case is considered when one of the axes of symmetry is orthogonal to the cracked plate, and the remaining two axes lie in the plane of the plate. The paper presents an asymptotic analysis of the contribution of higher approximations in the generalized asymptotic decomposition of mechanical fields near the crack tip in a linearly elastic anisotropic material with cubic symmetry of its elastic properties. In the article, based on the obtained solution of M. Nejati and co-authors for an infinite anisotropic plate with a central crack, circumferential apportionments of the stress tensor components at the crack tip at various distances fromthe crack tip are constructed, which makes it possible to estimate the contribution of non-singular (regular)terms to the general asymptotic representation of mechanical fields generated by an acute crack. In the work of M. Nejati, the contribution of exclusively T-stresses is analyzed, then, as shown in this work, the terms following the T-stress play a significant role in describing the fields induced by the crack. A comparison of the angular distributions of the stress tensor components constructed at different distances from the crack tip indicates that with the increase of distances from the crack tip, it is required to preserve in asymptotic series representing stresses, displacements and strains near the tip of the crack, the terms of high order of smallness. The preservation of the terms of high order of smallness can be used to expand the domain in which the asymptotic solution in the series is valid.
ASSOCIATIVE PRODUCTION OF J/ψ -MESONS AND DIRECT PHOTONS
AT THE ENERGY OF THE NICA COLLIDER
Authors: Alimov L. E. , Saleev V. A.
Published: August 2023

The article considers the associated production of J/-mesons and direct photons at the energy of the NICA collider, s =27 GeV, in the Generalized Parton Model in the leading order of perturbation theory of the quantum chromodynamics. Hadronization of a pair of cc-quarks to a J/-meson is described in terms of two approaches: the color singlet model and the color evaporation model. Nonperturbative parameters of the models are fixed from comparison with the available experimental data on inclusive production of J/-mesons obtained at energies from s = 19 up to s = 200 GeV. It is shown that the processes of the associative production of J/ + can be used to study of gluon distribution functions depending on the transverse momentum in a proton.
ENTANGLEMENT IN NONLINEAR TWO-QUBIT TAVIS — CUMMINGS
MODEL
Authors: Zakharov R. K. , Bashkirov E. K.
Published: August 2023

In this work, we have studied the dynamics of entanglement of two identical superconducting qubits resonantly interacting with the one-mode field of a coplanar microwave cavity without loss through single-photon transitions in the presence of third- and fifth-order nonlinearities. Based on the solution of the equation of evolution of the system for the Fock initial states of the cavity field, the criterion of qubits entanglement negativity is calculated. The results of the negativity calculation show that for the initial separable states, the cavity nonlinearity can lead to a significant increase in the maximum degree of qubit entanglement. It is shown that for the initial entangledstates of qubits and intense cavity fields, taking into account nonlinearities leads to stabilization of the degree of entanglement of qubits in the cavity and contributes to the disappearance of the effect of the entanglement sudden death of qubits.
INQUÉRITOS CIVIS DE MATÉRIA AMBIENTAL NO ENSINO JURÍDICO
Authors: Mota Tassigny Mônica , Das Chagas de Vasconcelos Neto Francisco , Maria Santiago Cavalcante Araújo Liane
Published: August 2023

No ensino do Direito, o estudo de casos práticos prestigia a análise do teor de sentenças e acórdãos. Todavia, há problemas jurídicos complexos, na realidade, que não chegam a ser submetidos ao Judiciário. Além disso, há mudanças de paradigma, entre o fim do século XX e o início do XXI, como o reconhecimento de titulares difusos e coletivos de direitos e o aumento de técnicas e métodos extrajudiciais de resolução de conflitos, que demandam um novo olhar para o ensino jurídico, em tempos de complexidade. Nessa medida, propõe-se analisar em que medida os inquéritos civis podem servir de objeto de metodologias ativas e participativas capaz de suprir lacunas e limitações eventualmente existentes no estudo de decisões judiciais, no ensino do Direito Ambiental. Parte-se da hipótese de que a interação entre os inquéritos civis e as metodologias ativas proporciona aos estudantes uma oportunidade de análise ampla e detalhada da complexa problemática ambiental. Trata-se de pesquisa bibliográfica e documental, com abordagem qualitativa. Conclui-se que o uso do inquérito civil no ensino do Direito Ambiental, por meio das metodologias ativas, beneficia uma formação protagonista do aluno, em consonância com o que dispõe o ordenamento jurídico vigente. Entre elas, destaca-se o “problem based learning” como uma das mais proveitosas para o estudo dos procedimentos extrajudiciais em destaque.
The Importance of Social Media for People with Disabilities in Poland During the COVID-19 Epidemic
Authors: Żuchowska-Skiba Dorota
Published: August 2023

People with disabilities during the COVID-19 epidemic were particularly vulnerable to information exclusion, e.g. press conferences were not translated into PJM, there was no information in plain language, etc. In addition, restrictions were introduced on social contacts and the possibility of carrying out previous activities and using the support of volunteers or assistants. This made social media an important tool during the COVID-19 pandemic for people with disabilities as it often provided a way to connect with a wider community, maintain social relationships, and obtain information about the epidemic and the restrictions being imposed. The aim of the article is to demonstrate the significance of social media during the COVID-19 pandemic in Poland from 2020 to 2021 for people with disabilities. This will be facilitated by netnographic research, which will be based on the analysis of content published in 10 Facebook groups for people with disabilities between March–April 2020 and December–February 2021.
The results of the research indicate that social media played an important role for people with disabilities during the crisis situation of the pandemic. Analysis of the content of social media group profiles showed that they provide a space for seeking and exchanging information, sharing concerns, seeking support, and fighting for their rights by people with disabilities.
The Experiences of the Families of Individuals on the Autism Spectrum During the Pandemic: A Study of Neurodiverse Individuals and Their Caregivers in the Context of Anomie Caused by the Global Health Crisis
Authors: Prokop-Dorner Anna , Ożegalska-Łukasik Natalia , Świątkiewicz-Mośny Maria
Published: August 2023

The health crisis triggered by the COVID-19 pandemic temporarily suspended many of the existing rules and principles of the social order. This crisis can be described as social anomie. In this article, we explore the coping strategies of persons with disabilities in this state using the example of the families of individuals on the autism spectrum. While the neurodiversity of people on the spectrum is associated with adaptation difficulties and a low tolerance of change, the outbreak of the pandemic introduced abrupt changes in the functioning of institutions, the trajectories of daily life, and existing routines. The analysis of in-depth interviews conducted among parents of children on the autism spectrum shows how, in the face of radical changes in their external conditions, caregivers adapted the available measures to the developmental needs of their children and other family members. In the face of an anomic social order, innovation turned out to be the dominant coping strategy.
Storytelling and the Healing Power of Photography: Rita Leistner’s My Space Project
Authors: Kukiełko Kalina , Tomanek Krzysztof
Published: August 2023

The aim of the article is to analyze the artistic, social project titled My Space. Stories from Inside the Downtown Eastside Vancouver, created by Canadian photographer Rita Leistner. Through her photographs and interviews, the artist presents the everyday life of a group of drug and alcohol addicted residents of Astoria and Balmoral hotels. The article is based on photographs taken by Leistner and the statements of project participants – both acquired from the artist’s Webpage. Bearing in mind Leistner’s intentions, we tend to present her story in the storytelling narrative. We treat that approach as a useful tool for qualitative data analysis as well as insightful framework to represent a story. This approach has worked well so far in the study of culture and art. Thus, we focus on the content and a form of a story while uncovering its threads looking at it from different dimensions interpreted through the prism of individuals to whom the story relates. We look at the way in which the space occupied by the heroes of the story is being photographed by Leistner, who creates a medium allowing the narrative to connect the present with the past and the future. That medium plays an important role in building a community.
ON THE ISSUE OF TRANSPORTATION OF LIQUEFIED CARBON DIOXIDE
Authors: Vanchugov Ivan M. , Rezanov Konstantin S. , Shestakov Roman A.
Published: August 2023

Link for citation: Vanchugov I.M., Rezanov  K.S., Shestakov R.A. On the issue of transportation of liquefied carbon dioxide. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 8, рр. 190-209. In Rus.
The relevance of the study is caused by the need to capture and utilize one of the main types of greenhouse gases – carbon dioxide (CO2). This need is primarily related to the ever-increasing CO2 emissions, three quarters of which are accounted for by the combustion of various fuels. The main aim is to analyze and systematize international methods for calculating the pipeline transport of liquefied carbon dioxide (LCO2) to determine differences in numerical results, including factors taken into account and not taken into account in the methods under consideration, as well as to analyze water transport type as an alternative to pipeline transport. Objects: liquefied carbon dioxide, a pipeline for transporting LCO2. Methods: numerical modeling of LCO2 pipeline transport according to international methods to estimate the required diameter capable of providing a given pumping flow rate, analysis of the results obtained. Results. The authors have carried out a review of existing methods for calculating LCO2 pipelines, carried out numerical modeling and analysis of the results were, during which it was revealed that most models ignore the influence of impurities, which, however, affect the technological parameters of operation and modeling of LCO2 pipelines, which will lead to inaccuracies in their design and operation. In addition, it was found that the fluid velocity in the pipeline is calculated according to the parameters in the initial section, which corresponds to its minimum value in the pipeline, and is assumed to be equal to it throughout the pipeline without taking into account the expansion of LCO2 from changes in temperature and pressure along its length and, consequently, without taking into account additional pressure losses and changes in other technological parameters that they can directly affect the operational safety and economic efficiency of the designed or operated LCO2 pipeline. It should also be noted that the diameter determination equations depending on the length of the pipeline are not suitable for estimating the optimal diameter of the pipeline. As for alternatives to pipeline transport, first of all, it is worth noting the possibility of transportation by tankers over long distances or the possibility of using LCO2 to increase the flow rate of deposits on the shelf and in hard-to-reach places of the coastal zone.
REHABILITATION OF MAN-MADE FORMATION OF ABANDONED COPPER PYRITE DEPOSITS ON THE EXAMPLE OF LEVIKHINSKY MINE (MIDDLE URALS)
Authors: Rybnikova Liudmila S. , Rybnikov Petr A. , Navolokina Vera Y.
Published: August 2023

Link for citation: Rybnikova L.S., Rybnikov P.A., Navolokina V.Y.  Rehabilitation of man-made formation of abandoned copper pyrite deposits on the example of Levikhinsky mine (Middle Urals). Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 8, рр. 137-150. In Rus.
The relevance of the research is related to the need to rehabilitate of abandoned copper pyrite deposits affected by acid mine waters and justify measures to clean up the existing clarification pond. The main aim is to study the sludge composition and justify the measures to reduce the environmental load on the hydrosphere. Objects: clarification pond and neutralization sludge of the Levikhinsky copper pyrite mine acid mine waters. Methods. Laboratory studies of water and bottom sediments were carried out using atomic emission and mass spectral analysis; methods of flame emission spectrometry, flame atomic absorption, photometric method with Nessler's reagent, titrimetric, mercumetric and potentiometric methods; mass spectrometry with ionization in inductively coupled plasma and gravimetric method. Results. Sludge samples are dominated by sulfates (gypsum and bassanite), iron oxides and hydroxides (goethite), carbonates (calcite), clay minerals (mainly hydromica) and chlorine-containing salts (carnallite). The chemical composition of the sludge is dominated by oxides of iron, sulfur and calcium. The analysis of water and acid extracts showed that up to 24 elements belonging to hazard classes 2, 3 and 4 can be leached from the sludge in concentrations exceeding the maximum allowable values for fishery water bodies. Several options for the use of sludge from the clarification pond were analyzed: reclamation of waste rock dumps and substandard ores; backfilling of mined-out area of quarries; production of building materials; extraction of components; storage of sludge in geotubes (Geotube). The most rational is the disposal of sludge as the production of building materials on the basis of a public-private partnership, the implementation of which will allow the state and the private sector to derive mutual benefit.