bluuebunny/crossref_metadata_2025 huggingface dataset:
Management of nicotine dependence in patients with psychiatric disorders – recommendations of the Polish Psychiatric Association – part I
Authors: Wojnar Marcin , Wierzbiński Piotr , Samochowiec Jerzy , Rymaszewska Joanna , Filipiak Krzysztof J. , Wichniak Adam , Mróz Robert , Mamcarz Artur , Dudek Dominika
Published: June 2023

Palenie tytoniu i uzależnienie od nikotyny są nadal jedną z głównych przyczyn szeregu poważnych i skracających życie schorzeń somatycznych. Jednocześnie są bardziej rozpowszechnione u chorych psychicznie niż w populacji ogólnej. W niniejszej pracy, która stanowi część pierwszą rekomendacji Polskiego Towarzystwa Psychiatrycznego, przedstawiono skalę zjawiska w populacji ogólnej i wśród osób z zaburzeniami psychicznymi, kryteria rozpoznawania uzależnienia i zespołu abstynencyjnego. Omówiono wpływ palenia tytoniu i ekspozycji na dym tytoniowy na rozwój i przebieg zaburzeń psychicznych, a także na przebieg leczenia zaburzeń psychicznych, w tym interakcje nikotyny z lekami psychotropowymi. Wielu pacjentów z zaburzeniami psychicznymi jest w stanie ograniczyć palenie lub uzyskać całkowitą abstynencję, jeśli zaoferuje im się adekwatną pomoc terapeutyczną. Wbrew powszechnej opinii, zaprzestanie palenia tytoniu i leczenie uzależnienia od nikotyny nie wpływa negatywnie na objawy zaburzeń psychicznych; stan psychiczny pacjentów może ulegać poprawie w efekcie terapii antynikotynowej. Najlepsze efekty pod względem utrzymania abstynencji daje zintegrowane z leczeniem psychiatrycznym podejście łączące farmakoterapię z interwencją psychoterapeutyczną.
Do Digital Competency and Self-Leadership Influence Teachers' Innovative Work Behavior?
Authors: Sary Fetty Poerwita , Dudija Nidya , Moslem Milleniartha
Published: June 2023

This study investigates whether digital competency and self-leadership influence teachers’ innovative work behavior in Islamic International schools. The participants in the quantitative research were 108 teachers from the Islamic International School, who were selected using saturated sampling. The researchers used a 41 items questionnaire to collect data on the study variables. Quantitative data were analyzed by applying structural equation modeling partial least squares (SEM-PLS) using Smart-PLS 3. According to the study's findings, digital competency has a positive and significant impact on innovative work behavior, while self-leadership also has a positive impact that significantly influences innovative work behavior. Overall, the impact of digital competency and self-leadership simultaneously was 0.584 or 58.4%, while the other variables not tested in this study influenced the other 41.6%. This research emphasizes schools to improve building their teachers’ innovative work behavior and for teachers themselves through training, self-development programs, building knowledge sharing among teachers and school leaders, and open ideas about developing pedagogical and sustainable programs for schools.
The Assistive Technology for Teaching and Learning of Social Skills for Autism Spectrum Disorder Children: Multimedia Interactive Social Skills Module Application
Authors: Ibrahim Zuraida , Mohamed Juliana , Kassim Noordiana , Bahrudin Ida Aryanie
Published: June 2023

An earlier study found that assistive technology based on mobile applications significantly improved how social skills were taught to and learned by autism spectrum disorder (ASD) children. Nevertheless, the content of the existing mobile applications is inadequate for capturing the diversity of Malaysian culture, making it unacceptable for local use. Considering cultural norms is a factor in developing social skills in ASD children. It is therefore necessary to develop new assistive technology based on mobile applications that consider Malaysian cultural norms.  As a result, the Multimedia Interactive Social Skills Module (MISSM) application was created based on the Addie Model, which offers a systematic process for assisting in developing successful instructional material by fusing instructional theory with learning theory. The MISSM application is based on Malaysia's current social skills curriculum, which helps ASD children become socially competent. Hopefully, it will help them develop better social skills and achieve academically. Finally, local culture-sensitive material for assistive technology based on mobile applications would support Malaysia's adoption of a technology-based teaching and learning strategy and contribute to a better understanding of social skills.
Evaluating the Results of PISA Assessment: Are There Gaps Between the Teaching of Mathematical Literacy at Schools and in PISA Assessment?
Authors: Kusmaryono Imam , Kusumaningsih Widya
Published: June 2023

The problems in education in the countries of the Organization for Economic Cooperation and Development (OECD) vary from country to country. The differences between "upper class" and "lower class" countries in PISA assessment results have led to a research gap. The purpose of this study was to (a) test students' mathematical literacy skills on the Program for International Student Assessment (PISA) test and compare the results using the sum of means across OECD countries; (b) examine the relationship between students' mathematical competence, precision, and self-perception of mathematical literacy skills in the PISA test; and (c) analyze the gaps that exist between the implementation of mathematics instruction in school and the mathematical literacy as measured on the PISA test. This study was designed as a mixed method with an explanatory sequential design. The data collection methods included test procedures, questionnaires, and interviews. The result of this study showed that the overall mean score obtained was below the OECD average. In general, the respondents achieved only level 2 mathematics proficiency. A significant relationship was found between mathematical competence, precision, and self-perception in mathematical skills. On the other hand, there was a gap, namely the difference at the implementation level, where mathematical literacy measured by PISA differed from the measurement of mathematical learning achievement by teachers in school. The results showed that teaching that emphasizes only problem-solving procedures affects low mathematical competence and is not useful enough for students to deal with the PISA mathematics test.
The Mediating Effect of Emotional Expressiveness on Parental Empathy and the Quality of Children’s Peer Relationships
Authors:   Center For Educational Research, Jang Yun-Jung
Published: June 2023

Purpose: The purposes of this study were to investigate associations between parental empathy andthe quality of children’s peer relationships, and examine the mediating effect of emotional expressivenesson the association between the two variables. Methods: Participants consisted of fifth and sixth grade elementary school children including 164boys and 145 girls in Seoul, Yongin and Suwon city. Children completed a parental empathy inventory,Emotional Expressiveness Questionnaire (EEQ), and the quality of peer relationship Network ofRelationships Inventory (NRI). The collected data were analyzed with SPSS and AMOS programs. Results: There was a significant correlation among parental empathy, emotional expressiveness, andthe quality of peer relationships. There was a mediating effect of emotional expressiveness betweena mother's empathy and the quality of children's peer relationships. There was no mediating effectof emotional expressiveness between a father's empathy and the quality of children's peer relationships. The father's empathy had a direct effect on the quality of children's peer relationships. Conclusion: The results of this study can serve as a resource for improving parental empathy, children’semotional expressiveness, and the quality of peer relationships, which play a significant role inchildren’s healthy development and school adaptation.
Design of an algorithm for the detection of intravenous fluid contamination in clinical laboratory samples
Authors: Rios Campillo Cristian , Sanz de Pedro Maria , Iturzaeta Jose Manuel , Qasem Ana Laila , Alcaide Maria Jose , Fernandez-Puntero Belen , Rioja Rubén Gómez
Published: June 2023

Objectives

Contamination of blood samples from patients receiving intravenous fluids is a common error with potential risk to the patient. Algorithms based on the presence of aberrant results have been described but have the limitation that not all infusion fluids have the same composition. Our objective is to develop an algorithm based on the detection of the dilution observed on the analytes not usually included in infusion fluids.

Methods

A group of 89 cases was selected from samples flagged as contaminated. Contamination was confirmed by reviewing the clinical history and comparing the results with previous and subsequent samples. A control group with similar characteristics was selected. Eleven common biochemical parameters not usually included in infusion fluids and with low intraindividual variability were selected. The dilution in relation to the immediate previous results was calculated for each analyte and a global indicator, defined as the percentage of analytes with significant dilution, was calculated. ROC curves were used to define the cut-off points.

Results

A cut-off point of 20 % of dilutional effect requiring also a 60 % dilutional ratio achieved a high specificity (95 % CI 91–98 %) with an adequate sensitivity (64 % CI 54–74 %). The Area Under Curve obtained was 0.867 (95 % CI 0.819–0.915).

Conclusions

Our algorithm based on the global dilutional effect presents a similar sensitivity but greater specificity than the systems based on alarming results. The implementation of this algorithm in the laboratory information systems may facilitate the automated detection of contaminated samples.
Decentering the Human in Practical Theologies of Care: An EARTH Method
Authors: Sanders Cody J.
Published: June 2023

This article addresses the problem of human supremacy in the methods of practical theology. It puts forth a practical theological method for experimentation shaped around five interpenetrating dimensions: Ecological, Anthropological, Relational, Technological, and Health/Harm/Healing (the EARTH method). The anticipated outcome of this method is the construction of practical theological projects that aim toward practices of care that continue to address concerns of the human, but always and only as the human is understood to be inextricably situated in an expansive cosmic web of entanglement.
Empowerment and Transformation: Correlating John of the Cross and Judith Herman for Trauma Healing
Authors: DuBois Heather M.
Published: June 2023

The Christian spiritual practice of John of the Cross and the trauma recovery practice of Judith Herman both employ relational theories of healing change. This is a constructive claim that aims to facilitate greater communication between religious and secular approaches to trauma. It is demonstrated through emphases on two dynamics that can increase knowledge and love of self and others, namely empowerment and a three-fold, open-ended process of transformation. Correlating John’s collected works and Herman’s classic Trauma and Recovery, this essay gathers wisdom for healing vulnerable relational selves.
For the Sake of the Church
Authors: Schaeffer Hans , de Muynck Bram , Pleizier Theo , Kater Maarten
Published: June 2023

In this article practical theologians from three Dutch Protestant institutions reflect on developments in the field. Their institutions started as ministry training centers and still have a strong focus on ecclesial practices. This focus has been reinforced by international trends in Practical Theology, mainly by a gradual shift towards an empirical way of working, with an emphasis on participative methods and ethnography. However, the field in the Netherlands continues to have a strong connection with church history and systematic theology. The authors discern three themes that characterize their institutes’ contribution to the international conversation on PT: the divine action within the practices, God’s promises in the context of his covenant, and a realistic view of brokenness, sin, and failure.
Restitución del sujeto y construcción del problema de investigación en la epistemología de Hugo Zemelman
Authors: Moreno Lopez William
Published: June 2023

En oposición a la recalcada objetividad que demanda el sistema de ciencia convencional, la propuesta epistémico-metodológica de Zemelman propugna por la restitución del sujeto en el proceso investigativo, tal acción se produce a la par con el abordaje de la problematización del objeto de investigación, pero requiere que, previamente, el individuo haya identificado su relación de conocimiento, esa afectación emocional subjetiva, mediadora entre él y el mundo y desde la cual entiende la realidad; para Zemelman, ésta es dinámica, articulada por procesos y, como sea que creación de la sociedad, susceptible de cambiar por los individuos que la integran, razón que justifica la intervención del sujeto en la problematización de la realidad, devenida así en objeto de investigación.
Una metafísica demasiado humana. El encuentro de la fisiopsicología nietzscheana con la metaforología blumenbergiana en la pregunta por el ser humano
Authors: Losada Nieto Estefanía , Cerezo Lesmes Manuel
Published: June 2023

Tal vez una de las razones por las cuales la tendencia del ser humano a plantearse preguntas que exceden sus posibilidades resulta tan problemática es que nos es imposible negarla o ignorarla. Hacerse preguntas metafísicas pareciera ser un rasgo característicamente humano, e indisociable de su propio cuerpo. Nietzsche muestra que los presupuestos metodológicos del proceder metafísico surgen de tensiones y exigencias fisiológicas, pues la propia relación del cuerpo humano con su entorno conlleva precisamente a la necesidad de ciertas formas de comprensión del mundo. Blumenberg se apoya en esta idea en la medida en que la ausencia de medios biológicos para defenderse de los peligros de la realidad obligan al ser humano a hacer uso de su intelecto y creatividad. Esto conlleva a una forma de relación indirecta y mediada, es decir, metafórica, con el mundo. El objetivo de este artículo es mostrar cómo la perspectiva blumenbergiana complementa e integra las críticas nietzscheanas a la metafísica, de manera que es posible concebir la inclinación natural del hombre a las preguntas metafísicas como su rasgo antropológico característico de su fisiología.
El problema de la virtud como elemento esencial en las corrientes contraliberales de la democracia
Authors: Zambrano Sanjuán Carlos Andrés
Published: June 2023

Las actuales sociedades de mercado han dado lugar a situaciones de extrema desigualdad y descontento social, lo que constituye una de las principales causas de la actual crisis de la democracia en casi todos los países de Occidente, en especial en Latinoamérica. Debido a lo anterior, han vuelto a cobrar vigencia las tesis que desde un principio hicieron frente a la concepción liberal de la libertad y la democracia. En este ensayo se examinan brevemente estas corrientes “contraliberales” de la democracia y se ponen en evidencia serios inconvenientes a los que pueden llevar por cuenta de uno de sus elementos esenciales: el cultivo de la virtud cívica de las personas y la identidad y responsabilidad con la sociedad que aquélla implica.
Optimal control for a two-sidedly degenerate aggregation equation
Authors: Bendahmane Mostafa , Karami Fahd , Erraji Elmahdi , Atlas Abdelghafour , Afraites Lekbir
Published: June 2023

In this paper, we are concerned with the study of the mathematical analysis for an optimal control of a nonlocal degenerate aggregation model. This model describes the aggregation of organisms such as pedestrian movements, chemotaxis, animal swarming. We establish the wellposedness (existence and uniqueness) for the weak solution of the direct problem by means of an auxiliary nondegenerate aggregation equation, the Faedo–Galerkin method (for the existence result) and duality method (for the uniqueness). Moreover, for the adjoint problem, we prove the existence result of minimizers and first-order necessary conditions. The main novelty of this work concerns the presence of a control to our nonlocal degenerate aggregation model. Our results are complemented with some numerical simulations.
On one method of multiplicative models elaboration during experiments
Authors:   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Larionov Hrihorii , Zemlyanaya Yuliya ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine
Published: June 2023

Description of functions in the vicinity of a point within the domain of a function is most often used for problems solution of mathematical physics as the Taylor series approximation. The reason for this approximation seems to be the application of function derivatives. The greater the order of derivatives, the more accurately the function in vicinity of the selected point could be presented. However, there is a necessity exists to define functions at the point of the mathematical models during experimental studies in a variety field of science. Mostly, two types of the models are used - additive and multiplicative ones. The multiplicative model is distinguished by the practical sense as well as widespread use. The fact is that the nature of a particular function research for technology industrial problems consists in the sequential change of its parameters. The study of function change upon condition of a single parameter change involves the retention of other parameters of certain pre-selected values, i.e. at a certain point in the functional space of parameters. It is not always clear that the result of the experimental study is finding the values of the function exceptionally in the vicinity of this point, not within the function domain. Neglecting this circumstance along with attempts to find the values of the function far out beyond the vicinity of selected point leads to the values of the function with inappropriate error. The approximate representation of scalar functions in the multiplicative form in the vicinity of the point has a wide range of applications, especially for geomechanics. It turned out that the approximate representation of scalar functions in a multiplicative form at a point within the domain could be extended to the whole domain. Moreover, the maximum error of a representation at the boundary of the domain for geotechnical problems, as a rule, does not exceed 5-7%, which is acceptable for engineering calculations. To test an efficiency of the successive approximations method an applied geomechanical problem has been solved. The conclusion on the efficiency of method for geomechanical problem is made. Keywords: mathematical model, successive approximations method, active experimental study, function.
Justification of the parameters of rotary-vibration drilling of small-diameter boreholes in rocks based on a submersible cavitation hydrovibrator
Authors:   Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine, Minieiev Serhii , Vasyliev Leonid ,   Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine, Trohymets Мyкola ,   Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine, Maltseva Vira ,   Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine, Polushyna Maryna ,   Dnipro University of Technology
Published: June 2023

The article presents the results of laboratory studies of the rotary-vibration drilling method of blast-holes and boreholes of small diameter based on a submersible cavitation hydro-vibrator. A generator that operates in the mode of intermittently stalled cavitation was used as a source of vibration load to the rock-breaking tool. The authors of this article developed and described the design of a submersible cavitation hydro-vibrator at the level of the patent of Ukraine for the invention. In addition, a bench design for laboratory studies of the parameters of a rotary-vibration drilling method was developed and described at the level of a patent of Ukraine for a utility model. It is established that the optimal mode of operation of the cavitation generator is ensured by its cavitation parameter in the range of 0.16-0.2. The geometrical parameters of the cavitation generator in the submersible cavitation hydro-vibrator are determined: the diameter of the critical section is 2.0 mm, the opening angle of the diffuser is 20º, and the outlet diameter is 10.0 mm, and the length of the post-diffuser channel is 200 mm. It is established that under the action of pressure pulses of the washing liquid, which is passed through the cavitation vibrator in the optimal mode, the additional deepening of the rock-breaking tool into the rock sample reaches up to 0.6 mm per rotation. Thus, the drilling speed of small-diameter blast-holes and boreholes (up to 55 mm) with the ЕБГП‑1М drilling rig of the Konotop Machine-Building Plant with the optimal mode of the rotation frequency of the rock-breaking tool, which equals 315 min-1 (5.25 s-1), can be increased by 3∙10-3 m/s, from 23∙10-3 m/s up to 26∙10-3 m/s, which is 13%. Keywords: the rotary-vibration drilling method, cavitation generator, submersible cavitation hydro-vibrator, mining rock.
Research of the impact of open-pit mining on the land and water resources in Kryvbas
Authors:   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, Malieiev Yevhen , Levchenko Kateryna ,   Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine
Published: June 2023

Main effects of mining operations on the land and water resources while mineral mining are considered. Identify that intensive open-pit and underground development of mineral deposits has resulted in the disturbed natural environment, which, in turn, have changed geomorphological and hydrogeological structure of the region. Current stage of the disturbed land and water resources are determined in terms of Kryvyi Rih iron-ore basin. The analysis showed that аs a result of mining and technical activities in Kryvbas, minimum 15-20 mln ha of land are disturbed, 59 % of this area is used for different mine workings, 38 % is covered with waste rock dumping or waste from mineral concentration, and 3 % is the sites of subsidence, caving, and other land surface disturbances due to underground mining. Thus, about 1 km3 of drainage water is extracted annually during mineral extraction. As a result, natural landscapes have been replaced by new technogenic objects, which, in turn, have changed geomorphological and hydrogeological structure of the region. Key technological objects of the largest enterprises of Kryvbas mining industry as well as their parameters are studied. Dynamics of the accumulation of emissions and discharges of the production wastes of Kryvyi Rih iron-ore basin enterprises as well as their location are shown. Identify that by means of gross discharge of the contaminating substances. On average, more than 235.62 thous. t/year enter the air with the dust. Also identify that the largest mining enterprises of Kryvyi Rih Region discharge on average 2296.8 thous. m3/year of the contaminated water. Certain measures are proposed to facilitate reduction of the impact due to open-pit mining on the indicated environmental components. They are aimed at involve implementation of resource-saving technologies along with reclamation of the technogenic objects. Keywords: mining operations, impact, technogenic object, waste dump, land resources, water resources.
INCORPORATING GEOGRAPHIC INFORMATION TECHNOLOGIES INTO A FRAMEWORK FOR BIOLOGICAL DIVERSITY CONSERVATION AND PREVENTING BIOLOGICAL THREATS TO LANDSCAPES
Authors:   Polissia National University, FEDONIUK T.P. , SKYDAN О.V. ,   Polissia National University
Published: June 2023

As the long-term sustainability of both natural and artificial phytocenoses is under serious threat from biological invaders, the global community is working hard to prevent invasions and rapidly eradicate or halt the spread of invasive species. By tracking the actual spread of “invaders” or predicting areas at risk of invasion, geographic information systems (GIS) and remote sensing of the Earth (RSE) can significantly assist the process of ensuring biosecurity at the state level. Research has shown the potential of remote sensing and GIS applications for invasive species mapping and modeling, even though it is currently restricted to a small number of taxa. This article gives examples of how GIS and RSE can be used to track invasive species like Utricularia australis R. br. and Lemna aequinoctialis Welw. To describe the distribution of species, current Internet databases of species distribution and the author’s own research were used. It also talks about promising ways to find and track the spread of invasive species, like using NDVI indices, chlorophyll and xanthophyll content to find changes in regional biodiversity, some problems with finding changes in biodiversity in agricultural landscapes, and mapping invasion risk. The study also demonstrates how GIS technology may be used to identify agricultural landscape biodiversity using radiometric space data from Sentinel 1, followed by a verification of the findings. The prospects of spatial, spectral, and temporal analysis of images are determined, as they make it possible to outline the boundaries of ecosystems, biometric characteristics of species, characteristics of their current and potential areas of distribution, etc.
ATOMIC OXYGEN IN LOW EARTH ORBITS, A RETROSPECTIVE REVIEW STUDY
Authors:   Assembly, Integration and Testing, AIT Center at Egyptian Space Agency, EgSA, MAHMOUD W.M. , ELFIKY D. ,   Thermal, Structure and Space Environment Dep. at National Authority of Remote Sensing and Space Sciences, ROBAA S.M. ,   Meteorology, Astronomy and Space Department Faculty of Science Cairo University, ELNAWAWY M.S. ,   Meteorology, Astronomy and Space Department Faculty of Science Cairo University, YOUSEF S.M. ,   Meteorology, Astronomy and Space Department Faculty of Science Cairo University
Published: June 2023

The article presents a retrospective review of atomic oxygen (AO) research in low Earth orbit (LEO).The space environment of LEO is a barrier to all satellites passing through it. Several of its constituent parts pose a great danger to satellite materials and subsystems. Such orbits are convenient for remote sensing and experimental satellites. In order to maintain the operational level of spacecraft, it is necessary to carry out thorough studies of the LEO environment and its components. AO, which is a hyperactive state of oxygen, is considered one of the most dangerous components of the LEO environment. It can react with many materials and thereby change the physical, optical and mechanical properties that affect the functionality of the satellite. To maintain the satellite in its orbit with a certain margin of reliability, it is necessary to reduce the aggressive influence on it of the environmental components of LEO. Predicting the impact of AO on materials that will be used in space ensures their correct selection. The work provides some recommendations for the creation of AO facilities for testing materials exposed to the aggressive influence of the space environment.
ANALYSIS OF PHOTOMETRY OF THE SICH-2 SATELLITE ON A MULTI-YEAR OBSERVATION INTERVALS
Authors:   Uzhhorod National University, Space Research Laboratory, Epishev V.P , Motrunich І.I. ,   Uzhhorod National University, Space Research Laboratory, Perig V.M. ,   Uzhhorod National University, Space Research Laboratory, Neubauer I.F. ,   Uzhhorod National University, Space Research Laboratory, Guranich P.P. ,   Uzhhorod National University, Space Research Laboratory, Susla A.I. ,   Uzhhorod National University, Space Research Laboratory, Koshkin M.I. ,   Research Institute “Astronomical Observatory” of Odesa I. I. Mechnikov National University
Published: June 2023

On August 17, 2011, a Dnipro vehicle launched the Sich-2 satellite into Earth’s orbit from the Yasny launch base. Ukrainian optical observation stations immediately began recording the satellite’s photometric light curves. In mid-2012, it was established that the Sich-2 spacecraft had a certain period of self-rotation and may have failed. This was confirmed later by official sources. Based on long-term observations of the Sich-2 artificial satellite of the Earth from Uzhgorod and Odesa, its behavior in orbit from the moment of launch until 2022 was investigated. The paper reveals the possibilities of the photometric method in combination with positional data from the research on the dynamics of the rotation of space vehicles with three degrees of freedom and complex design features of surfaces. In the article, the authors determined that the axis of self-rotation of the Sich-2 spacecraft coincides with its vertical axis, which precesses around the direction “the center of the satellite — the center of the Earth”. It was found that a pair of opposite PSBs are placed perpendicular to each other. The calculated value of the orbital period of the satellite was Porb = 99.5 min. and the average value of the precession period Ppr ~ 90.5 sec. The change in the period of selfrotation of the Sich-2 spacecraft was analyzed, which has changed at an interval of 9 years after destabilization in the range of Po = 11.95…3.63…5.06 sec. It was also established that the precession period during the same time varied within Рpr = 71.0…234.0 …226.0 sec. The angle of the precession of the axis of rotation relative to the direction from the center of the satellite to the center of the Earth is within 38°…28°.
MATHEMATICAL MODELING OF DISTRIBUTION OF THE ELECTROMAGNETIC FIELD NEAR A RAIL THREAD
Authors: Astrakhantsev D. B. , Havryliuk V. I. , Zavhorodnii O. V.
Published: June 2023

A mathematical model describing distribution of an electromagnetic field around a rail with account of skineffect in rail steel is developed and experimental measurements of a magnetic intensity are carried out.
SOFTWARE VOLTAGE REGULATION ON TIRE OF TRACTION SUBSTATION
Authors: Sychenko V. H. , Bader M. P. , Havryliuk V. I.
Published: June 2023

The criteria of voltage regulating quality on tractive power supply substation buses have been analyzed and the suboptimum adaptive algorithm of voltage regulation has been proposed. The method developed for a Dcelectrified railway section allows reducing maintenance costs and does not require significant expenses for its implementation.
METHODS OF SURGICAL HARDWARE CONTROL DIGITAL FUNCTIONAL UNITS
Authors: Tymoshkin O. I. , Kamenskyi V. V.
Published: June 2023

Various methods of operative built-in check for digital functional units are proposed. These methods are based on simultaneously using several self-checking or (and) non-self-checking control schemes for the same functional unit.
MODERNIZATION OF FREIGHT ELECTRIC LOCOMOTIVES AC VL80T AND VL80S ON THE RAILWAYS OF UKRAINE
Authors: Hetman H. K. , Visyn M. H. , Vlasenko B. T. , Kyiko O. I.
Published: June 2023

The article provides brief description of a technical project for reequipping the electric locomotives VL80Т and VL80S with smooth thyristor adjusters of tractive motors with the single automatic control system.
MATHEMATICAL MODELING OF THE IMPACT OF RANDOM FUNCTION SHOCKS OF THE VOLTAGE AT THE PANTOGRAPH ON TRANSIENT ELECTROMAGNETIC PROCESSES IN THE LOCOMOTIVE DE1
Authors: Mishchenko T. M.
Published: June 2023

A mathematical model of DC electric locomotive series DE 1 has been developed for study of the influence of jolt-like voltage changes on the pantograph on transitional electromagnetic processes. The authors have made numeric calculation of the magnetic flow and the currents involved.
MODELING INTERACTIONS OF RAILWAY TRANSPORT AND REGIONAL ROUTE OF INDUSTRIAL SITE
Authors: Bashkatov O. M.
Published: June 2023

The article is devoted to the issues of interaction between railway transport and fixed route modes of goods delivery to customers, the provision of optimal functional schemes of the route network, in accordance with specific capacities of a transport junction.
ESTIMATION OF THE NUMBER OF EDUCATIONAL SUPPORT OF PERSONNEL LABORATORIES OF STATISTICS DEPARTMENTS
Authors: Harbaruk V. V. , Herasymenko P. V. , Elyzarov S. V. , Khodakovskyi V. O.
Published: June 2023

The article provides methodical guideline on construction of mathematical model for evaluation of the number of auxiliary educational staff for provision of training workshops of all kinds.
APPROXIMATION OF THE TRANSITION FUNCTION
Authors: Strekalov M. M.
Published: June 2023

Approximation of transitive function by means of solution of second order differential equation has been examined and estimation of the error of transfer function has been determined.
IMPROVING THE EFFICIENCY OF THE PROTECTION CIRCUIT OF THE TRACTION MOTORS FROM EXTERNAL AND INTERNAL SHORT CIRCUITS DURING REGENERATIVE BRAKING ON ELECTRIC LOCOMOTIVES DE1
Authors: Visyn M. H. , Vlasenko B. T. , Kyiko O. I. , Yehorov O. O.
Published: June 2023

The article deals with the analysis of the work of Traction Motor Protecting System on electric locomotives DE1, which protects the motors from inner and outer short circuits in the mode of recuperative breaking. The calculations have revealed that the system in question, installed by the producer, does not meet the requirements of protecting the motors from short circuits in the recuperative mode. For extra protection of the motors from outer, and especially – from inner short circuits, the authors suggest complementing the system by quick-acting contactors from the «earth» side, with automatic forced demagnetization of traction motor excitation windings, operating in generator mode, with the recuperative current during the protection activation.
IMPROVING THE RELIABILITY OF UNDERGROUND METAL AND CONCRETE PIPES
Authors: Beliavskyi Yu. V. , Mashytun O. V.
Published: June 2023

The analysis of work of the system «high filling – water-carrying pipe – the base» reveals the causes of stretch deformation alone the pipe axis, deflection of the pipe body in relation to its heads, etc. For solution of these problems new designs of water-carrying pipes have been suggested.
VIBRATIONS OF CONTINUOUS BEAMS WITH INTERMEDIATE SUPPORTS
Authors: Raspopov O. S.
Published: June 2023

Results of investigations, based upon logical models application, are used for account of intermediate supports of continuous multispan beams. The matrices obtained take into account all possible combinations of elastic fastenings of both the end and intermediate sections of continuous beams. In this, any additional solutions for the bar parts placed in the whereabouts of localized masses, elastic supports or joints are excluded.
SOME ASPECTS OF THE CHINA RAILWAYS DEVELOPMENT
Authors: Teslenko T. V. , Chzhan Nyn
Published: June 2023

The article presents analysis of basic directions of development and reformation of railways control system in China.
DYNAMIC RUNNING TRIALS OF ELECTRIC TRAIN EPL9T
Authors: Basov H. H. , Naish M. M. , Mishchenko M. P. , Hundar V. P. , Sydorov M. P.
Published: June 2023

The results of the experimental investigation of dynamic perfomance of the electric train EPL9T was described. The range of exploitation velociries is appoint.
SOME TEST RESULTS OF THE ABSORBING APPARATUS ELASTOMERIC TYPE DEVELOPMENT OF DIIT
Authors: Blokhin E. P. , Plakhotnyk V. M. , Savchuk O. M. , Zabolotnyi O. M. , Bubnov V. M. , Kalachnyi V. P.
Published: June 2023

The results of the steady-state test happen to in article, dynamic on blow coach and blow on copra. Findings are done on improvement of the designs.
THE EFFECT OF THE NATURE OF THE MATERIALS AT THE MAIN DYNAMIC PARAMETERS OF CATENARIES, AND ITS INTERACTION WITH PANTOGRAPH
Authors: Kolesov S. M.
Published: June 2023

An increase in the speed of movement by electric railways requires the application of new materials with the improved performance properties. Is shown that the basic dynamic parameters of contacts lines depend on a nature of used materials.
THE KINETICS OF THE PROCESS OF COUPLING THE WHEEL-RAIL
Authors: Savoskyn O. M. , Liapushkin M. M.
Published: June 2023

The process of a wheel and a rail coupling is considered as the short-term physical interaction of surfaces of a wheel and a rail according to the basic concepts of solid body physics.
AUTOMATED DIAGNOSIS OF MECHANICAL PARTS OF PASSENGER CARS IN THEIR NORMAL OPERATION
Authors: Dmytriiev D. V.
Published: June 2023

On an example «Automated diagnostic system» are submitted experience of application and prospect of development of the given concept of diagnosing of a mechanical part of the railway rolling-stock.
RESERVES OF IMPROVEMENT OF RAILS QUALITY. IMPROVING THE TECHNOLOGY OF MICROALLOYING THE RAIL STEEL
Authors: Titova T. M.
Published: June 2023

Ways of perfection of the technological circuit of producing of rails are considered. It is shown, that microalloying is the important reserve of improvement of quality of rail steel.
INVESTIGATION OF THE EFFECTIVENESS OF CYCLIC CODE IN THE ERROR DETECTION MODE
Authors: Bezrukov V. V. , Honcharov K. V.
Published: June 2023

A research of discovering capacity of cyclic code, in presence of errors of different repetition factor, has been performed in the paper. Dependence of the discovery coefficient on the number of verification elements in the area of the assured discovery has been obtained. Adequacy of the developed models has been confirmed by coincidence of machine experiment results and circuit simulation results.
CONVERSION OF ORGANIZATIONS TO CREATE PROJECT-ORIENTED SYSTEMS
Authors: Bilokon O. I. , Levchynskyi D. L.
Published: June 2023

This article reveals the main aspects in the system of organizational structure and integration at transition to a project-oriented organization.
THE USE OF FACTOR ANALYSIS IN MANAGERIAL DECISION MAKING IN THE MANAGEMENT OF STAFF
Authors: Drahun L. M. , Fisunenko P. A. , Borodin M. O.
Published: June 2023

A system of support of administrative decision-making in the area of staff management is considered. Recommendations have been given, concerning development of analytical provision of the staff management system.
APPROACHES TO THE MANAGEMENT OF OPERATING CASH FLOWS ON THE BASIS OF THE IMPLEMENTATION OF THE STRATEGY OF THE COMPANY MARKET VALUE GROWTH
Authors: Yakymova A. M.
Published: June 2023

The article offers approaches to management of operating money flows of the enterprise on the basis of realization of the strategy of increased market value of the enterprise, which requires usage of efficient methods of evaluating the management of operating money flows. The task of the estimation of operational money flows management has been formulated with account of the profitability concept and that of the risk of economic operations.
ATMOSPHERE PROTECTION FROM POLLUTION DUE TO SPILLS OF TOXIC SUBSTANCES
Authors: Biliaiev M. M. , Koptilaia O. V.
Published: June 2023

A method to calculate the process of contaminated air evacuation from the zone of toxic substance spillage with ventilators has been developed. The method is based on the numerical integration of 3D equation of pollutant transfer. Results of the calculative experiment have been provided.
DEFINITIONOFRATIONALSEQUENCEOFINVESTMENT
Authors: Barash Yu. S. , Bosov A. A. , Kirpa H. M.
Published: June 2023

A mathematical model and optimization method, allowing to establish rational sequence of investment at introduction of high-speed train services inUkraine, have been proposed.
THE MONITORING SYSTEM OF THE DISK BRAKE OF THE PASSENGER CAR
Authors: Prykhodko V. I. , Ihnatov H. S. , Stierinzat Ya. M. , Makarenko V. M.
Published: June 2023

The monitoring system of a condition of a disk brake of the carriage which solves a task of authentic definition of its condition is offered and provides transfer of the necessary information on it to the attendants.
FEATURES OF DESIGN OF THE LED TAIL LIGHTS FOR PASSENGER CARS
Authors: Ihnatov H. S.
Published: June 2023

In work the description and results of tests of a design of light-emitting diode rear lights of carriages is resulted. Originality and reliability of a function chart of rear lights promotes a safety increase of movement.
THE EFFECT OF CIRCUIT LOADING ON DISTRIBUTION UNIFORMITY OF DEFORMATION DURING THE PLASTIC FLOW OF CARBON STEEL
Authors: Vakulenko I. O.
Published: June 2023

Investigations of the substructure of cold-rolled low-carbon steels have shown that after 20 % pressurization the already big volumes of ferrite have periodic dislocation structures similar to dislocation cells. After two to four alternating bending cycles, an increase in the homogeneity of distribution of ferrite micro-hardness can be observed, along with a decrease of homogeneity of distribution of dislocations inside individual cells.
MAJOR TECHNICAL FEATURES OF TGV TRAIN SYSTEMS
Authors: Bartošová V. , Ivánková K. , Majerčák J.
Published: June 2023

With increase of the speed limits of the TGV train systems, there are many problems arising as regards the design, used materials and safety. Solutions to these problems demand heavy investments from the SNCF company into research and development projects. As such investments must be profitable in a longer term, new TGV lines have to be established between places where there is a sufficient need for long distance travel able to bring reasonable profit to the TGV train system operator.
THE NATURE AND THE AMOUNT OF WEAR OF PRESS-FIT CONNECTION OF AXLE UNIT CARS
Authors: Mykhalichenko P. Ye.
Published: June 2023

The article deals with results of statistical research of the wear quantity of inside surface of races and wheelset neck of the car. The parametrical reliability of the stationary joint has been defined with account of oval and conelike shape of the details.
STATISTICAL APPROACH TO DETERMINATION OF ENERGY LOSSES IN TRANSFORMERS OF THE AC TRACTION SUBSTATIONS
Authors: Kuznietsov V. H.
Published: June 2023

It is proposed to determine losses of electric power in transformers of a.c. tractive substations by statistical methods.
STRENGTHENING OF REINFORCED CONCRETE BEAM SUPERSTRUCTURES USING PRESTRESSED SPRENGELII AND RODS
Authors: Popovych M. M. , Myroniuk O. S. , Borshchov V. I.
Published: June 2023

The methods of intensifying the reinforced-concrete beam spans, fitted with conventional beam-type reinforcement elements, with the use of tie beams and prestressed rods have been examined.
THEORETICAL RESEARCH OF DYNAMIC CHARACTERISTICS OF FREE OSCILLATIONS OF A BRIDGE SPAN TYPE 690/7K
Authors: Raspopov O. S. , Kharytonova T. F. , Borshchov V. I.
Published: June 2023

The paper considers the outcomes of theoretical research of the first six forms of free vibration of metallic span structures with design span of110 m, manufactured under the standard project 690/7K.
SUPERSTRUCTURES TEST OF ROAD BRIDGES BY MOVING LOAD
Authors: Redchenko V. P.
Published: June 2023

The paper presents a technique and the program complex for definition of structural parameters of span structure of highway bridges by results of their tests by moving load.
ABOUT ONE APPROACH TO THE DESIGN OF SUSPENSION BRIDGES
Authors: Soldatov K. I.
Published: June 2023

The work considers application of a method of designing the bridge structures (general and «hanging» ones), in particular by the so called «method of reverse movement», when by the basic (initial) parameter of the construction to be designed is the period of its own vibrations (the frequency).
FREEVIBRATIONOFSUSPENDEDPIPELINECROSSINGS
Authors: Soldatov K. I.
Published: June 2023

The article is devoted to the question of defining own frequencies of trailing pipeline passages with the use of calculation model as a multi-span regular beam (pipe) on elastic supports (suspension brackets together with a cable). The example of calculation is given in comparison with calculations by other methods.
METHOD OF WORKS CONDUCTING ON ASSESSMENT OF TECHNICAL CONDITION OF CONCRETE BRIDGE SPANS AND THE DEFINITION OF THE VOLUME AND STRUCTURE OF THEIR CURRENT CONTENT
Authors: Solomka V. I. , Horobets V. L. , Borshchov V. I.
Published: June 2023

The article proposes fundamentals of working method of assessment of technical state of reinforced concrete span structures of bridges and determination of the volume and structure of their current maintenance, developed with the use of methods of reliability theory and mathematical statistics. The method stipulates that the planning of obligatory repairs and changes of the span structures on the bridge is carried out on the basis of an analysis of the state of the facility in a certain period of time and its behavior during all of the service life, by way of minimization of the costs of the repair works or changes. Expediency of further operation of the facility is determined, provided that the costs of its repair do not exceed the incomes from its operation.
TECHNICAL CONDITION ASSESSMENT OF CONCRETE BRIDGE SPANS AND THE DEFINITION OF THE VOLUME AND STRUCTURE OF THEIR CURRENT CONTENT
Authors: Solomka V. I. , Horobets V. L. , Borshchov V. I.
Published: June 2023

The article enlists fundamentals of the proposed method of estimating the volume and structure of currentmaintenance of reinforced concrete spans of bridges, according to their current state, developed with the use of methods of reliability theory and mathematical statistics. The method stipulates that the planning ofobligatory repairs and changes of the span structures on the bridge is carried out on the basis of an analysis of the state of the facility in a certain period of time and its behavior during all of the service life, by way of minimization of the costs of the repair works or changes. Expediency of further operation of the facility is determined, provided that the costs of its repair do not exceed the incomes from its operation.
EXPERIENCE IN THE OPERATION AND MONITORING OF BRIDGE SUPPORTS WHICH ARE SUBJECTS TO IRREGULAR PRECIPITATION AND CAREENS
Authors: Sukhorukov B. D. , Savchynskyi B. V. , Zhurbenko M. K.
Published: June 2023

The article provides examples of non-uniform settlings and heels of flyover supports, exposed to a considerable extent, and enlists the common causes and regularities in their appearance and development. The measures on liquidation of an accident rate of facilities and increase of their operational reliability are indicated. Recommendations are given of how to organize long-term observation of such objects.
TO THE DETERMINATION OF THE SCALE ENTRIES USING MULTIPURPOSE GEIGER DEVICE AS A DYNAMIC DEFLECTOMETER PRESENTED WITH WIRE CONNECTION
Authors: Tarasenko V. P.
Published: June 2023

The paper studies a method of defining the scale of vibrato-recordings with the use of Geiger apparatus, with account of deformation of wire connection between the apparatus and the immovable point.
THE RESULTS OF THE SURVEY AND CALCULATION OF ARCHED BRIDGE WITH RIBBED ARCHES TAKING INTO ACCOUNT THE ELASTIC FLEXIBILITY OF INTERMEDIATE SUPPORTS
Authors: Tarasenko V. P. , Kosiak V. M. , Rykina V. L.
Published: June 2023

The paper presents an analysis of technical condition, the calculation, taking into account pliability of the supports, and recommendations on reconstruction of the town arch bridge built in 1903 are presented.
THEORETICAL STUDIES OF FREE OSCILLATIONS OF A BRIDGE SPAN ESTIMATED WITH A SPAN OF 110 m SERIES 3.501.2-139
Authors: Kharytonova T. F. , Borshchov V. I.
Published: June 2023

The paper considers the outcomes of theoretical research of the first six forms of free vibration of metallic span structures with box-like close elements and the design span size of110 m, of 3.501.2-139 series.
EUROPEAN INTEGRATION IN THE FIELD OF TRANSPORT-ROAD COMPLEX – REAL STEPS
Authors: Basov V. I.
Published: June 2023

The steps of introduction of the control systems by quality are described in the article.
THE QUALITY OF RAIL TRANSPORT SERVICES IN THE MARKET CONDITIONS
Authors: Levytskyi I. Ye.
Published: June 2023

In article the information about improving of competitorability of railway transport for count of certification of produce and services is given.