bluuebunny/crossref_metadata_2025 huggingface dataset:
Immunometabolic changes in macrophages in response to house dust mite extract
Authors: Yurakova T. R. , Gorshkova E. A. , Nosenko M. A. , Gubernatorova E. O. , Drutskaya M. S.
Published: June 2023

To date, much remains unclear about the pathogenesis of asthma, one of the most common chronic and highly heterogenic diseases of the respiratory system. The lack of specific and highly effective therapy in case of certain asthma subtypes requires the search for new approaches to treatment. One possible approach would be to influence the metabolism and immune functions of myeloid cells. This approach finds its application in the treatment of cancer and other diseases in the pathogenesis of which macrophages play an important role. It was shown that the pathogenesis of allergic asthma in response to one of the most common allergens, house dust mite, is due to a metabolic TNF-mediated reprogramming of alveolar macrophages. This suggests that influencing the process of TNF production or metabolic adaptations with specific blockers may also lead to a reduction in the symptoms of the course of the disease as a whole. In this work, we experimentally tested whether the previously obtained phenotype that occurs in macrophages in response to HDM cultured in DMEM is preserved if cells are cultured under more physiologically relevant conditions: in a medium closely related in composition to blood plasma. We also analyzed open databases of alveolar macrophages sequencing obtained from patients with asthma or from the lungs of mice in an HDM-induced asthma model in order to correlate specific immunometabolic changes. It was found that macrophages cultured under conditions close to physiological, simultaneously increase the rates of respiration and glycolysis, and also produce TNF in response to HDM. The observed phenotype is consistent with transcriptomic analyzes performed on human and mouse samples, which revealed an increase in the expression of genes related to glycolysis, oxidative phosphorylation, and the TNF signaling pathway. Thus, the data confirm the relevance of the phenotype obtained in vitro to the changes occurring in the in vivo system. However, functional verification at the level of metabolites, proteins and changes in metabolic activity is also required. In addition, it remains to be established how the blocking of individual metabolic pathways affects the features of the functional macrophage phenotype that occurs in response to HDM, and whether this effect can alleviate asthma symptoms.
RESULTS OF COMPLEX RESEARCH OF SOIL BASES REINFORCED BY SOIL-CEMENT ELEMENTS MANUFACTURED USING DRILLING MIXING METHOD
Authors: RAZDUI R. V. , VYNNYKOV YU. L.
Published: June 2023

Object. To find out the nature of stress-strain state of strip foundations reinforced by drilling mixing technology by means of experimental studies in a tray and in field conditions, for the reliability of the obtained results, comparing field studies with finite element method (FEM) modeling. Method. Tray tests were carried out in a metal tray with a steel stamp. Unreinforced clay soil bases and bases reinforced by soil-cement were tested with varying values of the reinforcement coefficient from 2,1 % to 7,1 % with a reinforcement depth of 100 mm and a diameter of 5 mm. Observations of settlements of the natural object were carried out by the method of geometric leveling using deformation marks arranged evenly around the perimeter of the building. The site on which a ten-story residential building was built was chosen due to difficult engineering and geological conditions. The zero cycle of observations was carried out, cycles after the construction of each floor of the building, its acceptance for operation, occupancy of the building and every subsequent 2-3 years. Results. The load-bearing capacity of the foundations with the increase in the percentage of soil reinforcement increases with the given parameters in an approximately linear dependence. The given results demonstrate a high correspondence between the experimental and simulated dependences of settlements on pressure. In the stage of plastic deformation, the use of the Hardening Soil model (HSM) more adequately describes the behavior of the soil, while the Mohr-Coulomb model (MCM) slightly overestimates the settlement. The distribution of settlements of the investigated object on strip foundations corresponds to the actual one recorded during long-term geodetic observations. The measured settlement of the foundations of the sections and those obtained by modeling have a satisfactory convergence. Scientific novelty. The correspondence of laboratory and field data and the results of modeling of soil-cement bases of strip foundations was checked. The practical significance. The models of soil behavior and the methods of specifying of soil-cement elements (SCE) for FEM modeling of reinforced soil bases of strip foundations have been tested.
RESISTANCE OF SOME CONCRETES IN SOLUTIONS OF HYDROFLUOBORIC ACID
Authors: Ivasiuk O. O. , Pshinko O. M. , Plakhotnik V. M. , Zaiats Yu. L.
Published: June 2023

The paper concerns the issue of boron-fluoro-hydrogenous acid (BFH) water solutions influence on concretes, usually used as flooring materials. A considerable destructive effect of this acid is demonstrated, which can be explained by combined influence of high acidity and the action of the hydrogen fluoride. There has been established an inhibiting effect of the super-plasticizer «Mapefluid» upon the destruction speed and hypotheses have been presented as for the mechanism of such effect.
ASSESSMENT OF ENERGY EFFICIENCY OF MODULAR TRACTION
Authors: Hetman H. K. , Arpul S. V.
Published: June 2023

A technique of determining power efficiency of modular traction for provision of the freight railway operations is offered in the article.
THE IMPACT OF UNIFICATION OF ELEMENTS ON RELIABILITY OF CONTROL SYSTEMS ROLLING STOCK
Authors: Dubynets L. V. , Momot O. I.
Published: June 2023

In clause with use of the theory of probability the influence of reduction of types of spare relays on a level of their trouble-free work is investigated. The expediency of realization of unification of all kinds of the relay is shown which are applied in control systems of the rolling stock of iron roads, with use of modern microcontrollers.
DETERMINATION OF EFFECTIVE STRUCTURES OF A PASSENGER TRAIN
Authors: Bosov A. A. , Momot Ye. O.
Published: June 2023

A technique of determining the options of the passenger train rational pattern has been proposed.
CURRENT TRENDS IN THE DESIGNS OF LOCOMOTIVES BOGIES
Authors: Klimenko I. V.
Published: June 2023

The article describes modern designs of the bogies, with approved dynamic parameters, for high speed foreign and Ukrainian-produced diesel and electric locomotives. The current tends in Ukrainian locomotive-building industry have been discussed.
THE DYNAMIC BEHAVIOR OF SYSTEMS WITH ASYMMETRIC PIECEWISE AND LINEAR ELASTIC CHARACTERISTICS
Authors: Volkova V. Ye.
Published: June 2023

In a theoretical study of oscillations the necessity of building a mathematical model arises. For this purpose the data of technical drawings, descriptions, and also other documentation about the structure and meaning of separate parameters, will be used. However in some cases this information can be insufficient. An effective solution in this case can be usage of systems identification methods. They consist in construction of a mathematical model of the object, basing on experimental records.
A STUDY OF THE IMPACTS OF CARS EQUIPPED WITH ELASTOMERIC ABSORBING DEVICES USING COMPUTER SIMULATION
Authors: Biespalko S. V. , Andriianov S. S.
Published: June 2023

Software to investigate the elastomer absorbing devices work at various trains collision speeds is created. A comparison of the obtained simulation results with tests shows their good agreement.
THE RESULTS OF STRENGTH TESTS OF ELECTRIC LOCOMOTIVE DS3
Authors: Blokhin Ye. P. , Kostrytsia S. A. , Ostrovierkhov M. P. , Sultan O. V. , Datsenko V. M. , Kryvchykov O. Ye. , Chumak V. V.
Published: June 2023

In paper results of strength tests of electric locomotive DS3 are submitted.
AUTOMATEDSYSTEMOFTHEFLEETMANAGEMENTOFTHETRANSPORT COMPANY
Authors: Borisov S. V.
Published: June 2023

The paper reports the results of developing the automatic management system for railcars fleet of an expedition company. A special feature of the program is the information certificate that is added to the electronic technical certificate of the wagon.
DEVELOPMENT OF THE GAS TANKS OF THE NEW GENERATION, EQUIPPED WITH PROTECTIVE DEVICES FOR INCREASED POWER CONSUMPTION
Authors: Volkov V. O. , Bubnov V. M. , Bohomaz H. I. , Kelrykh M. B.
Published: June 2023

The response and the stress-strain state of new generation gas tank-car design elements at emergency impacts in the head are investigated. The tank-car is equipped with tank head protection devices of safety shields with cellular energy absorbing element type. Efficiency of their use at emergency loading is shown.
IMPROVING THE EFFICIENCY OF COMBINED FRICTION OF SHOCK-ABSORBING DEVICES ON THE BASIS OF THE PMK-110A
Authors: Kehlin B. H. , Boldyriev O. P. , Ivanov O. V. , Stupin D. O.
Published: June 2023

Questions of the development and application of the combined frictional shock-absorbers of Т1 and Т2 classes which use elastic elements made of Durel polymeric material as the working elements are considered.
MODELING OF ATMOSPHERE OF AND UNDERLYING SURFACE POLLUTION IN CASE OF ACCIDENTS IN RAILWAY TRANSPORT
Authors: Biliaiev M. M. , Koptyla O. V.
Published: June 2023

A 2D computer model to simulate air pollution after liquid ammonia leakage accidents has been developed. The model is based on numeric integration of diffusion equation and convectional transfer of the impurity. The calculation has been performed according to subtractive scheme of decomposition. Results of practical application of the developed model are presented.
THE CHOICE OF ELASTIC-DISSIPATIVE CHARACTERISTICS OF UNDERCARRIAGE PARTS OF SPECIAL ROLLING STOCK
Authors: Lunin O. O. , Kossov V. S. , Yevstratov O. S.
Published: June 2023

The directions of special rolling stock development and problems of the choice of elastic and dissipative characteristics for vehicle components have been considered.
BOGIES FOR HIGHER SPEEDS HAVING A SHORT WHEEL BASE
Authors: Orlova A. , Kik W. , Scheffel H.
Published: June 2023

The reduce drive time it is necessary to increase the speed of trains. Modern high speed trains have the 3-metre bogie base and an even smaller one. The base size influences significantly not only the system movement stability but the bogie frame weight as well. The base size reduction is possible with the use of the active suspension system and with the use of inter axle link construction as well.
MODELING THE FEASIBLE REGION OF THE DEPARTMENTS OF THE EQUATIONS OF MOTION OF A PASSENGER TRAIN
Authors: Arpul S. V.
Published: June 2023

The paper suggests a technique of determination of coordinates of passenger electric locomotives marginal tractive characteristic for carrying out traction calculations in solving the problems of parameters optimization of tractive rolling stock’s nominal mode.
POSSIBILITY SUBSTANTIATION OF A RATIONAL HORIZONTAL STIFFNESS REALIZATION OF THREE-PIECE TRUCK DESIGN
Authors: Orlova A. M.
Published: June 2023

The paper proposes a general approach to the choice of in-plane stiffness of three-piece bogie including the expressions of shear and bending stiffness and the dependencies of a critical speed on tangent track and in curves, wear factor and lateral acceleration on their values. Mathematical models of elastic and swing types of “side frame – wheelset” connection as well as of the spatial wedge system justify the possibility to achieve reasonable parameters.
A MATHEMATICAL MODEL OF THE TRACTION DRIVE OF DC
Authors: Kedria M. M. , Chumak I. V.
Published: June 2023

A mathematical model of the traction drive of electric locomotive series DE1 has been built on the basis of a well-known methodology. The equations, the structural scheme of the motor as a non-linear regulation object, the time constants of structure units, the induction and other characteristics are provided.
USING THE GENSYS SOFTWARE FOR RAILWAY VEHICLE MODELING
Authors: Persson I.
Published: June 2023

В Швеции и Скандинавии с 1971 года успешно проводится компьютерное моделирование динамики рельсовых экипажей. Для этого используется программный комплекс GENSYS и его предшественники. GENSYS – очень гибкая и легко управляемая программа, к которой легко добавляются новые модули, написанные на языке C или Fortran. Для подготовки исходных данных используется язык высокого уровня, на котором пользователь описывает свою задачу.
EMISSIONS OF VOLTAGE ON THE PANTOGRAPH OF AN ELECTRIC LOCOMOTIVE DE1
Authors: Mishchenko T. M.
Published: June 2023

Theoretical research of voltage emissions has been conducted for the collector of electric locomotive DE1. The comparative results of theoretical and experimental calculations have been provided.
FORECASTING CONTAINER FLOWS
Authors: Bekh P. V.
Published: June 2023

The paper describes a method of the forecasting the container services within transport corridors.
THE MANAGEMENT RATE OF INDIVIDUAL CONSUMPTION OF THE RESOURCE TRANSPORTER CAR
Authors: Trietiakov A. V. , Vasiliev O. V.
Published: June 2023

The article presents a mechanism to prolong service life of flat cars (including the unique transporter flat cars) using the simulation – expertise – statistic method of managing the individual life cycle. Recommendations to decrease the utilization rate of TK-8 transporter are formulated.
THE EXTENSION OF THE OPERATIONAL TIME OF PASSENGER CARS
Authors: Ostapiuk B. Ya.
Published: June 2023

Basing on the results of economic and theoretical calculations, and also the static outcomes of car examinations, the authors have considered and proposed several reasonable options of extending the term of passenger cars operation.
MATHEMATICAL MODELING OF ECCENTRICALLY LOADED GROUNDS ON LAYERED FOUNDATIONS BY FINITE ELEMENT METHOD
Authors: Andrieiev V. S. , Tiutkin O. L. , Selikhova T. O.
Published: June 2023

The article considers the issues of mathematical modelling of behaviour the outside-of-the-centre loaded basements, resting on multi-layer beds. It has been shown that application of the finite elements method forcalculation of such basements allows to get the results, most adequate to real conditions.
THEORETICAL STUDY OF THE CONDITIONS OF JOINT OPERATION OF OLD AND NEW CONCRETE
Authors: Viktorov V. H. , Danilov Ye. O. , Rieshetniak T. P.
Published: June 2023

An estimation of factors, influencing structural compatibility of old and new concretes, has been performed by authors of the paper. They have also attempted to make a review and select the instruments of finite element analysis, with the help of which it is possible to model the combined work of multi-layer concrete designs.
THE GENERALIZATION OF THEORETICAL POSITIONS AND METHODS OF VALUATION MODELS OF PLANNING DEVELOPMENT AND TRAINING IMPLEMENTATION OF PROJECTS IN A GIVEN PERIOD OF TIME
Authors: Radkevych A. V. , Pavlov I. D. , Pavlov F. I.
Published: June 2023

Reconstruction of the objects, destined for different purposes, has always the same aim, i.e. execution of the woks within the set periods with the smallest possible costs. The practice of the reconstruction works, however, testifies that the timeframes are often violated, which entails enormous losses of resources. The present work is devoted to improvement of the practices of realizing the project of complex reconstructions within the set periods.
THE STUDY OF THE PROCESSES OF STRUCTURE FORMATION OF FILLED SOLUTIONS BASED ON ALKYL RESORCINOLS
Authors: Mamonova T. V.
Published: June 2023

The article presents the results of experimental and theoretical study of structure-forming peculiarities in alkylresorcin-based filled-in composites. A high efficiency of the mortars for construction of anti-filtration screens in facilities, operated in conditions of exposure to ground waters, has been demonstrated.
THE INFLUENCE OF THE FLEXURAL RIGIDITY ON THE DYNAMIC PROPERTIES OF STAY CABLES
Authors: Misiura Ye. O.
Published: June 2023

The paper is devoted to the analysis of influence of bending rigidity on dynamical properties of cables. A mathematical model of free oscillations of the cable without account of the damping is developed. An investigation of influence of bending rigidity on free oscillations of the system has been carried out. It has been noted that consideration of bending rigidity leads to an increase in frequency of free oscillations of the cable.
THE STUDY OF METAL ARCHED BRIDGE DYNAMIC OVER THE OLD DNIEPER RIVER IN ZAPOROZHYE
Authors: Soldatov K. Y. , Kriuk A. H.
Published: June 2023

The article, based on the example of an existing metal arch bridge in Zaporozhye, considers application of the «resilient models» technique in calculations of oscillations and stability of such structures. The own free vertical oscillations of the arch span of the bridge were found to be in a forbidden range (0.45 to 0.60 sec). Based on the presented technique, recommendations The article, based on the example of an existing have been developed on reconstruction and dynamic stabilization of the arch span structure.
EVALUATION OF ENERGY LOSSES IN TRACTION NETWORK OF TRUNK RAILWAYS
Authors: Kuznetsov V. H. , Mytsko R. S. , Bosyi D. O.
Published: June 2023

An indirect method of electric power losses determination in traction network was examined. An example of solving same task with the help of specialized imitation model and results of statistic analysis are adducted. Possible ways of using given results are showed.
TO THE ISSUE OF IMPROVING QUALITY OF PERFORMANCE THE EVALUATION OF RAILWAY TRACK
Authors: Bondarenko I. O.
Published: June 2023

For consideration of questions on providing of terms of smoothness of motion and optimization of work of railway way it is suggested to enter the concepts of the systems of high-quality estimation of capacity and unfolded diagnostics
THE RATIONAL TRAIN SPEED CHOICE PROBLEM WITH THE HELP OF MATHEMATICAL MODELING OF THE RAILWAY SECTION EXPLOITATION PROCESS
Authors: Kharlan V. I. , Kurhan D. M. , Bondarenko I. O.
Published: June 2023

The method of an establishment of rational speeds of movement in view of change of a condition of objects in time by means of modeling process of operation of a railway as set of objects by use of functions of set is offered.
THE CONTAINER SYSTEM OF PNEUMATIC CONVEYING PIPELINE BASED ON THE USE OF WIND ENERGY
Authors: Buriak O. O. , Dzenzerskyi V. O. , Zeldina E. O. , Tarasov S. V.
Published: June 2023

Based on our research of the transformation of the kinetic energy of the wind into potential energy form, a сapsule-pipe pneumatic transportation system was developed. In this system the compressor stations were replaced with the modular air streams concentrators, which create the differential pressure inside the trunk pipe-line, necessary for transporting a payload.
PRINCIPLES OF ECONOMIC EVALUATION OF MARKETING PROGRAMS
Authors: Zhuravel Ye. V.
Published: June 2023

General principles of estimation of economic efficiency of the marketings programs are formulated on the criteria of operating-room arrived to the investment indexes. The concept of short and long wave of creation of marketing cost of enterprise is entered. The analysis of types of marketings expenses is conducted, which four groups of costs are formed on the basis of: 1) advance expenses for development of the marketing program, 2) current expenses which are straight directed on realization of the concrete marketing program, 3) expenses on a personnel, 4) total marketings expenses are enterprises which are distributed between the marketings programs. Developed recommendation on the division of these expenses between the short and long wave of creation of marketing cost of business.
ANALYSIS OF THE CURRENT CONDITIONS ON THE COST OF RAILWAY TRANSPORTATION OF UKRAINE
Authors: Kalambet S. V. , Pryvalova L. V. , Pyvniak Yu. V. , Dronov S. Y.
Published: June 2023

The progressive aging of the railways capital assets, modernization of infrastructure requirements, lack of state support in the innovative development of a branch, low rates for the carriage of passengers. This leads to their cross-subsidization at the expense of freight cargo. These facts caused the Ukrainian railways reforms. The impact of current conditions on the railroading cost in Ukraine was analyzed in the article.
ECONOMIC AND MATHEMATICAL MODELING OF OPTIMAL CHOICE OF INVESTMENT PROJECTS ON RAILWAY TRANSPORT WITH RISK ACCOUNTING
Authors: Kudrytska N. V.
Published: June 2023

There are the considered existent indexes and methods of estimation of efficiency of investment projects in the article. First offered economic-mathematical model of the nonlinear programming of choice of optimum investment projects taking into account the risk and basic factors which influence on profitability.
MANAGERIAL ACCOUNTING, PLANNING, CALCULATION AND ANALYSIS OF COST OF PRODUCTION IN THE CONDITIONS OF MARKET ECONOMY (METHODOLOGICAL ASPECT)
Authors: Shulha O. V. , Lohvynenko O. V.
Published: June 2023

Problems of function of the system of planning and analysis of prime cost of output simultaneously with reformations of the system of accounting in accordance with national standards of accounting are considered.
SYNTHESIS OF SPECTRAL-TIME PARAMETERS OF THE MODULES BLOCK SPEECH RECOGNITION IN AUTOMATED CONTROL SYSTEM
Authors: Karpov O. M. , Savenkova O. O.
Published: June 2023

Algorithm of segment-syllabic synthesis of time-spectrum parameters for the model of speech recognition block is introduced.
A RETROSPECTIVE EXAMINATION OF THE CLASSIFICATION OF RAILWAYS BY CATEGORIES
Authors: Kurhan M. B. , Korzhenevych I. P. , Toropov B. I. , Smialkovskyi V. Ye.
Published: June 2023

The approaches, concerning establishments of classification of railways behind different normative documents are researched. Offers which consider additional parameters at an establishment of a category of railways in modern conditions are presented.
THEORETICAL BASIS FOR THE DETERMINATION OF RATIONAL PARAMETERS OF COMPLEX MECHANICAL SYSTEMS
Authors: Myamlin S. V. , Prykhodko V. I.
Published: June 2023

The mathematical description of choosing the parameters of mechanical systems in general form and with eking account of the features of rail vehicles is presented. The examples of solution of vector optimization problems according to several indices are considered.
METHODS OF DETERMINATION OF PARAMETERS OF ELECTROMAGNETIC RELAYS
Authors: Bondarenko B. M.
Published: June 2023

A method of mechanical and electric parameters control of electromagnetic relays without removal of protective casing is expounded in the article. Control of diagnostic signals obtained by three informative channels: electric, optical and acoustic has been put in the basis. An installation diagram which realizes the proposed method has been provided.
IMPROVING THE RELIABILITY OF GAUGE DEVICES OF ELECTRICAL INTERLOCKING
Authors: Malovichko V. V. , Havryliuk V. I.
Published: June 2023

Analysis of main exploitation .factors which are necessary for rational choosing of the parameters and developing control and diagnostic algorithm for electric centralization devices are provided.
MODERN MICROCONTROLLERS IN SCHEMES OF ROLLING STOCK
Authors: Ustymenko D. V.
Published: June 2023

General structure of a microcontroller has been presented; the basic requirements to it and its peripheral modules have been formulated in case of their use in the systems of automated control of rolling stock. An analysis has been executed and a perspective structure of modern control systems on the basis of microcontroller equipment has been identified.
PREDICTION OF RESIDUAL WORK TIME OF THE RUNNING PARTS OF THE ROLLING STOCK, AND THEIR EXHAUSTED RESOURCES
Authors: Donchenko A. V. , Olhard L. S. , Bondariev S. V. , Volkov L. H.
Published: June 2023

The article describes methods of defining the service life and residual resource of the rolling stock running gears on the basis of bench test of a small number of spare parts with the various service life, developed by State Research Institute of Car Building, All-Ukrainian Research Institute of Railway Transport, State Enterprise «Ukrainain Research Institute of Car Buiding». On the basis of the comparative analysis of these techniques, their advantages and disadvantages are shown.
REDUCING THE SIDE EFFECTS ON THE WAY AS A RESULT OF THE USE OF COMBINED LUBRICATE RAILS
Authors: Panin Yu. O. , Kosov V. S. , Tryfonov O. V.
Published: June 2023

The results of practical application of the technology of combined rails lubrication are presented in the article.
THE APPLICATION OF THE CRITERION OF UNDERSTANDABILITY OF SPEECH FOR CLASSIFYING THE PASSENGER AREAS OF THE CAR NOISE
Authors: Shmakov S. V.
Published: June 2023

A method of determining levels of transport noise in the passenger sections of a railway car is offered, which will provide the necessary comfort level on noise. It is suggested to conduct classification of passenger sections of a car depending on the noise level.
FAILURE MODES AND WEAR INTERRUPTING CONTACTS OF THE CONTACTORS WITH SUPPRESSION OF ARCING OF THE MAIN CONTROLLER ECG -8ZH
Authors: Babyak M. O. , Teterko O. A.
Published: June 2023

The kinds of failures which arise while in service, and features of wear process of contacts of the main controller EMK-8G of a.c. electric locomotives are considered in the work. Some results of natural tests of contacts with brazing from different materials are provided.
IMPROVING THE EFFICIENCY OF POWER TRANSMISSION USING A RECTIFIER CONVERTERS WITH VARIABLE STRUCTURE POWER CIRCUIT
Authors: Basov H. H. , Falaleiev M. I.
Published: June 2023

Different ways of increasing efficiency of electric transmission in the rolling stock and methods of improving the power efficiency in the use of valve transformers with the variable structure of power circuit are examined in the article. The methods of designing electric transmissions with variable structure of power circuits have been offered.
PHASE BOOSTER DEVICE WITH SINGLE-PHASE HIGH FREQUENCY LINK
Authors: Klimash V. S. , Vlasievskyi S. V. , Konstantinov O. M.
Published: June 2023

The device is intended for compensating the reactive capacity of circuit with simultaneous stabilization of the loading voltage. It includes a high-frequency single-phase transformer which is included between two converters. One of the converters is fitted with ad.c.link and raises frequency above that of the circuit, and the other one – with a direct communication, and lowers the frequency down to the frequency of circuit.
SOME RECOMMENDATIONS FOR ADDITIONAL PROTECTION
Authors: Mishchenko T. M.
Published: June 2023

On the basis of theoretical research, it is offered to increase inductance of the shunting branch of tractive motor and also to use its switching-off before restoration of voltage on the current collector in the «removal−restoration» mode.
COMBINED METHOD OF SHOOTING PLAN OF THE RAILWAY LINE
Authors: Korzhenievych I. P.
Published: June 2023

The combination of existing methods of surveying curves has been considered and recommendations on leveling-off the results of measurements have been given.
HIGHLY EFFECTIVE THERMOMECHANICALY REINFORCED REBAR
Authors: Vakulenko I. O. , Razdobreiev V. H. , Perkov O. M.
Published: June 2023

The article investigates the structure, mechanical and services characteristics of high-strength rebar, thermomechanically strengthened under different cooling modes.
STRUCTURE AND PROPERTIES OF EUTECTIC ALLOYS-LIGAMENTS ON THE IRON-BASED COMPOSITE COATINGS
Authors: Sukhova Ye. V.
Published: June 2023

The paper studies the influence of structure of boron- and carbon-containing iron alloys, including those additionally alloyed with Si , Al , Mn , and P , on their resistance to wear and corrosion in gas-abrasive and acid media. The optimal composition of the alloy that can be used as the binder of macroheterogeneous composites having high performance characteristics was determined.
PROPERTIES OF FORMAL STRUCTURES AND SUBSTRUCTURES
Authors: Ilman V. M.
Published: June 2023

For designing of systems, it has been prposed to use a three-component formal structure with a set of elements, a signature and axiomatics. Some properties of the structures and their substructures have been presented. The problem of recovering the formally grammatical structures with the help of language substructures has been considered.
EFFECTIVE ACCOMPLISHMENT PALE OF FOUNDATION WITH SLIDING LAYER IN COLLAPSIBLE SOIL TYPE II
Authors: Donchenko P. O. , Hretskyi D. V. , Konoval V. M.
Published: June 2023

The article considers application of the method of erecting pile foundation with antifriction coverage in waterrepellant sprinkling. It has been noted that in application of the sprinkling protective screen from water-repellant soil is being formed for protection of the pile serface from bio-aggressive conditions of the soil environment. The author also provides the list of operations concerning arrangement of bored-pile foundation with water-repellant sprinkling.
THE RESULTS OF THE DIAGNOSTICS OF THE TECHNICAL CONDITION OF THE OPERATED METAL DRAWBRIDGE TEST UNDER THE COMBINED DRIVE
Authors: Tarasenko V. P. , Savchynskyi B. V. , Solomka V. I. , Sukhorukov B. D. , Zhurbenko M. K. , Kharytonova T. F. , Kliuchnyk S. V.
Published: June 2023

The article describes peculiarities of operation of the draw-bridge for combined traffic, the results of technical evaluation and tightness tests of the suspended cables of the drawbridge with vertically lifted span structure.
THE DEFINITION OF ECONOMIC EFFICIENCY OF THE PASSENGER CAR OF A NEW TYPE
Authors: Gnennyi M. V. , Gnennyi O. M.
Published: June 2023

A technical approach to cost efficiency determination of new type of passenger cars introduction is proposed, based on modern methods of defining the efficiency of innovations. This includes a proposed technique for assessing the uncertainties and risks with the use of method of statistical testing. A model has been developed for determining efficiency of introduction of the passenger transformer car produced by public corporation Dneprovagonrembud.
METHOD FOR DETERMINING PROPERTIES OF THE INJECTABLE COMPOSITIONS BASED ON CEMENT
Authors: Pshinko O. M. , Zinkevych A. M. , Afanasieva T. I. , Savytskyi M. V.
Published: June 2023

The mechanism of concrete mix compaction by vacuum compaction and vibro-vacuumizing is considered. The major factors essentially influencing this process are distinguished. The mathematical dependences are given. The theoretical findings are verified by experimental tests.
STATIC TEST OF ROAD BRIDGE WITH AN EXPERIENCED SPAN STRUCTURES WITH PRESTRESSED CONCRETE U-BEAMS 18 M LONG
Authors: Sukhorukov B. D. , Zhurbenko M. K.
Published: June 2023

The article considers the results of testing an 18m-long sectional span structure, manufactured under project BCK 31-81.
PRINCIPLES OF ORGANIZATIONAL STRUCTURE OF THE PUBLIC SECTOR AT DIFFERENT STAGES OF STRUCTURAL REFORM OF THE RAILWAYS
Authors: Barash Yu. S. , Karas O. O.
Published: June 2023

The principles of organizational structure of the Department of Passenger Transportations on three stages of Ukrzalizniza’s structural reform were offered with respect to the requirements of the technological process and the antitrust legislation of Ukraine.
ADAPTIVE PLANNING SYSTEM AND THE CONCEPT OF STRATEGIC THINKING
Authors: Mykhailichenko N. M.
Published: June 2023

Planning processes on enterprise meet with different problems such as problems connected with features of human thought. Adaptation of wins of the strategic thought conception of D. Derner to demands of planning on enterprise let to develop planning methodology.
OPERATION: THE PHENOMENON OF SOCIAL PRODUCTION AND ECONOMIC CONSCIOUSNESS
Authors: Khvorostiana N. V.
Published: June 2023

The terms of existence of exploitation are considered in public production and in consciousness of managing subject. The possible ways of overcoming of exploitation are resulted in economic consciousness of society.
Cognitive Reserve in Older Adults: A Cluster Analysis
Authors: Moret-Tatay Carmen , Irigaray Tatiana Quarti , Argimon Irani Iracema de Lima , Oliveira Camila Rosa de
Published: June 2023

Abstract Cognitive reserve (CR) is a construct generally associated with neurodegenerative diseases in aging. The aim of this paper was to examine the CR profiles of older adults at different stages of their lifespan and evaluate the importance of: (a) gender and CR; and (b) CR, cognition, and symptoms of depression. A sample of 195 older adults volunteered to participate in the study, and a cluster analysis was carried out on their responses in terms of the Cognitive Reserve Scale. The cluster analysis depicted two different profiles. Furthermore, women had a better CR than men. The results provide an important contribution to understanding the variables related to the CR construct.
Brazilian Version of the Level of Personality Functioning Scale-Brief Form 2.0: Evidence of Reliability and Validity
Authors: Oliveira Sérgio Eduardo Silva de , Zimmermann Johannes , Krueger Robert Frank , Hutsebaut Joost
Published: June 2023

Abstract The goal of this research was to investigate the psychometric properties of the Level of Personality Functioning Scale - Brief Form - 2.0 (LPFS-BF-2.0) in Brazilian samples. Therefore, two samples were used in this study, one with 415 and the other with 1,011 Brazilians. Participants completed the Brazilian version of the LPFS-BF-2.0 and other measures of common mental disorder symptoms, suicide risk, the severity of personality pathology, and pathological personality traits. The results indicated that the two-factor model (including self-functioning and interpersonal functioning domains) fits the Brazilian samples better than a one-factor model. The LPFS-BF-2.0 scales indicated adequate reliability coefficients and evidence of convergent validity.
Psychometric Properties of the Hewitt and Flett Multidimensional Perfectionism Scale in Brazilian Adults
Authors: Mansur-Alves Marcela , Muniz Monalisa , Rueda Fabian Javier Marín , Zeferino Geovani Garcia
Published: June 2023

Abstract The aim of the present study was to investigate validity evidence based on internal structure and the relationship with other variables of the Brazilian version of the Hewitt and Flett Multidimensional Perfectionism Scale (H&F-MPS). To this end, a sample comprising 368 participants with a mean age of 31.17 years (SD=11,34), 74% female, answered the H&F-MPS perfectionism scale and instruments that measure personality and psychological inflexibility. Findings indicated a factor structure of three dimensions, like the original scale, good discriminative item parameters, highly satisfactory reliability indexes, and significant correlations of the hypothesized directions with Openness to Experiences, Neuroticism, and Conscientiousness factors from the personality measure, as well as with the psychological flexibility measure.
Social Responsibility Scale (SRS-2): Validity Evidence Based on Internal Structure
Authors: Borges Lisandra , Otoni Fernanda , Lima Thatiana H. de , Schelini Patrícia Waltz
Published: June 2023

Abstract This study aimed to provide evidence of validity for the Social Responsiveness Scale (SRS-2) based on its internal structure. The results of 1,001 participants, aged between two and 73 years, indicated through Path Analysis that Social Perception predicts 56%, while Social Cognition predicts 79% of social responsiveness, Social Communication 92%, Social Motivation 70%, finally The Social Communication and Social Interaction subscale can predict 96% of social responsiveness. The subscales have a strong correlation magnitude and evidence the contribution of the SRS-2 to assess social responsiveness, in addition to being promising to predict the diagnosis of ASD at the national level.
FLEXIBLE INTRAMEDULLARY NAILS IN PEDIATRIC SUBTROCHANTERIC FEMUR FRACTURE: BIOMECHANICAL STUDY
Authors: CRUZ MÁRIO AUGUSTO FERREIRA , BATTAGLION LEONARDO RIGOBELLO , VOLPON JOSÉ BATISTA
Published: June 2023

ABSTRACT Objective Evaluate the stability provided by two flexible intramedullary nails (FINs) in a simulation of fractures at the proximal levels in pediatric femur models. Methods Two FINs were inserted in 18 synthetic models of pediatric femurs. Fractures were simulated at one of three levels, and the models were divided into the following groups (n=6): diaphysis (control), subtrochanteric and trochanteric. Flex-compression tests were performed with force up to 85 N. Relative stiffness and the average deformation was obtained. Torsion tests were performed by rotating the proximal fragment until 20°, to obtain the average torque. Results At flex-compression, the set’s average relative stiffness and average deformations were: 54.360x103 N/m and 1.645 mm in the control group, respectively. In the subtrochanteric group, the relative stiffness was 31.415x103 N/m (-42.2%) and the deformation was 2.424 mm (+47.3%) (p<0.05). For the trochanteric group, the relative stiffness was 30.912x103 N/m (+43.1%) and the deformation was 2.508 mm (+52.4%) (p<0.05). In torsion, the average torque was 1.410 Nm in the control group; 1.116 Nm in the subtrochanteric group (-20.8%), and 2.194 Nm in the trochanteric group (+55.6%) (p<0.05). Conclusion FINs do not seem to be biomechanically competent for the treatment of proximal femoral fractures. Level of Evidence I; Therapeutic Studies - Investigating the results of treatment.
DOES PARTIAL MEDIAL KNEE ARTHROPLATIES HAVE BETTER RESULTS THAN TOTAL ONES?
Authors: GUERREIRO JOÃO PAULO FERNANDES , SANTOS VITORIA KAROLINE JUSTINO DOS , MATZ LUCAS BECKERT , PEDROLLO LUCAS DELFINO , SANTOS VITOR HENRIQUE JUSTINO DOS , QUEIROZ ALEXANDRE OLIVEIRA , BIGNARDI PAULO ROBERTO , DANIELI MARCUS VINICIUS
Published: June 2023

ABSTRACT Objective Compare the results of medial unicompartmental knee arthroplasty (UKA) using a mobile platform and total knee arthroplasty (TKA) in patients with isolated medial osteoarthritis. Methods Retrospectivecross-sectional study. Preoperative radiographs of 602 patientswho underwent knee arthroplastybetween February 2017 and February 2020 were evaluated. Isolated medial osteoarthritis was found in 125 patients. Of these, 57 underwent UKA and 68 TKA. With chart analysis and telephone interviews, we compared patients’ clinical outcomes and degree of satisfaction. The statistical analysis used a confidence level of 5%. Results The group of UKA patients obtained 65.8% of favorable results against 79.1% of those undergoing TKA in the function questionnaire (p<0.0001). The complication rate was statistically similar between the groups(p>0.5). Most patients were satisfied or very satisfied in both groups (88.6% of UKA and 91.2% of TKA) (p>0.999). Conclusion Patients submitted to UKA or TKA have presented the same degree of satisfaction and rate of postoperative complications when comparing patients with isolated medial osteoarthritis. UKA patients had less favorable results onthe clinical functional questionnaire than patients undergoing total arthroplasty. Level Of Evidence III;Retrospective Study.
PREVALENCE OF POSTURAL CHANGES IN SCHOOL CHILDREN AND ADOLESCENTS
Authors: RESENDE BRUNO BOARI DE , ALMEIDA PAULA SILVA , SILVA MARCELO AUGUSTO , SANTOS PATRÍCIA SAMARA , ÁVILA MARCOS VINÍCIUS DE , GUIMARÃES ANDRÉA CARMEN , DAMÁZIO LAILA CRISTINA MOREIRA , SALDANHA PAULO CHAVES
Published: June 2023

ABSTRACT Objective Investigate the prevalence of postural changes and correlate them with body weight and the weight of schoolchildren’s backpacks in a school in the city of São João del-Rei-MG. Material and Methods The study is an original type, with a cross-sectional design, where 109 schoolchildren of both sexes and mean age of 13 years were evaluated. The New York scale was used for posture analysis, measuring body weight, height, backpack weight, and Body Mass Index (BMI). The ANOVA statistical test and Pearson’s correlation test were used, considering a significance level of 0.05. Results According to the results, the general average of the scores of postural problems was 68.7 points, with a predominance in the head, spine, hips, trunk, and abdomen. The regions of shoulder, feet, and neck presented mean scores below seven. The mean height was 1.61 m, body weight 56.03 kg, backpack weight 4.49 kg and BMI was 21.51 kg/m. Conclusion Postural alterations are highly prevalent among the evaluated students. The most affected body segments are the head, spine, hips, trunk, and abdomen. However, this finding was not related to the weight of the backpacks or the students’ body weight. However, different parameters must be used to analyze the factors that may be related to such findings, such as ergonomic changes, inadequate habits, growth spurt, among others. Evidence Level III,Cross-sectional Observational Study.
Uma proposta de medida de g inspirada em exercício de texto didático do professor Moysés Nussenzveig
Authors: Bezerra A.B. , Barros R.F.E. , Bessa A. , Lisboa R. , Ferreira P.C.
Published: June 2023

A determinação da aceleração de queda livre é uma prática comum em laboratórios didáticos de Física. Neste trabalho, apresentamos uma proposta experimental para medir a aceleração da gravidade baseada em um exercício do livro didático de Mecânica do professor Moysés Nussenzveig. Essa determinação é realizada através do movimento de um carro sobre um trilho de ar inclinado, e possui discrepância da ordem de 0,5%.
Praxis Model for Technology Development: a participatory approach
Authors: Salbego Cléton , Nietsche Elisabeta Albertina
Published: June 2023

ABSTRACT Objective: To present the Praxis model for Technology Development validated content and appearance. Method: A methodological study with validity of a nursing research model, carried out from March to September 2022. A total of 26 research nurses from all regions of Brazil participated. The model items were considered relevant and reliable when the Content Validity Index Confidence Interval was ≥ 0.8 in just one round. When minor, modifications or deletions were made, as suggested by specialists. Results: The model was operationalized in the pragmatic, productive/artistic, experimental and revolutionary phases. Its assessment was considered relevant by judges, obtaining an average index of 0.950 for its content and 0.825 for appearance. Conclusion: The praxis model presents theoretical clarity, a relevant and applicable approach in technological development research in nursing.
Modelo Práxico para Desenvolvimento de Tecnologias: uma abordagem participativa
Authors: Salbego Cléton , Nietsche Elisabeta Albertina
Published: June 2023

RESUMO Objetivo: Apresentar o conteúdo e aparência validados do Modelo Práxico para Desenvolvimento de Tecnologias. Método: Estudo metodológico, com validação de um modelo de pesquisa em enfermagem, realizado de março a setembro de 2022. Participaram 26 enfermeiros pesquisadores de todas as regiões do Brasil. Os itens do modelo foram considerados relevantes e confiáveis quando o Intervalo de Confiança do Índice de Validade de Conteúdo foi ≥ 0,8 em apenas uma rodada. Quando menor, modificações ou exclusões foram realizadas, conforme sugestões dos especialistas. Resultados: O modelo foi operacionalizado nas fases pragmática, produtiva/artística, experimental e revolucionária. Sua avaliação foi considerada pertinente pelos juízes, obtendo índice médio de 0,950 para seu conteúdo e 0,825 para aparência. Conclusão: O modelo práxico apresenta clareza teórica, abordagem pertinente e aplicável em pesquisas de desenvolvimento tecnológico em enfermagem.
CAMBIANDO EL PARADIGMA INCLUSIVO: LAS NECESIDADES EDUCATIVAS PERSONALES
Authors: GARCÍA-BARRERA Alba
Published: June 2023

RESUMEN El paradigma inclusivo ha supuesto grandes avances en la educación de los estudiantes con necesidades educativas especiales, pero ha mantenido su etiquetaje, interpretándolos como quienes deben ser incluidos frente al resto que incluye. En este contexto, el presente artículo apuesta por un cambio hacia un paradigma personalizado en el que no se etiquete a ningún estudiante, sino que cada alumno se considere especial y diferente al resto y pueda recibir una educación adaptada a sus Necesidades Educativas Personales (NEP). Este concepto de NEP permite focalizar la atención y respuesta educativa en lo que cada niño y niña necesita para desarrollar al máximo su potencial individual, evitando caer en reduccionismos de la diversidad que perpetúen las prácticas capacitistas y segregadoras sobre los colectivos más vulnerables. Así, en este trabajo se presenta el enfoque de dicho concepto y el paradigma que lo enmarca, ofreciendo su definición y describiendo los principios en los que se basa. Así mismo, se abordan algunas de las fuentes tanto nacionales como supranacionales que toma como referencia y que justifican y avalan científicamente su propuesta, para finalmente concluir exponiendo las razones por las que este cambio conceptual y paradigmático resulta urgente y prioritario para crear verdaderas escuelas para todos.
Reduction of estimated glomerular filtration rate after COVID-19-associated acute kidney injury
Authors: Bento Gabrielle Accioly Omena , Leite Vivian Larissa Tenório , Campos Rodrigo Peixoto , Vaz Flora Braga , Daher Elizabeth De Francesco , Duarte Daniella Bezerra
Published: June 2023

ABSTRACT Introduction: Acute Kidney Injury (AKI), a frequent manifestation in COVID-19, can compromise kidney function in the long term. We evaluated renal function after hospital discharge of patients who developed AKI associated with COVID-19. Methods: This is an ambidirectional cohort. eGFR and microalbuminuria were reassessed after hospital discharge (T1) in patients who developed AKI due to COVID-19, comparing the values with hospitalization data (T0). P < 0.05 was considered statistically significant. Results: After an average of 16.3 ± 3.5 months, 20 patients were reassessed. There was a median reduction of 11.5 (IQR: –21; –2.1) mL/min/1.73m2 per year in eGFR. Forty-five percent of patients had CKD at T1, were older, and had been hospitalized longer; this correlated negatively with eGFR at T1. Microalbuminuria was positively correlated with CRP at T0 and with a drop in eGFR, as well as eGFR at admission with eGFR at T1. Conclusion: There was a significant reduction in eGFR after AKI due to COVID-19, being associated with age, length of hospital stay, CRP, and need for hemodialysis.
Redução da taxa de filtração glomerular estimada após injúria renal aguda associada à COVID-19
Authors: Bento Gabrielle Accioly Omena , Leite Vivian Larissa Tenório , Campos Rodrigo Peixoto , Vaz Flora Braga , Daher Elizabeth De Francesco , Duarte Daniella Bezerra
Published: June 2023

RESUMO Introdução: A Injúria Renal Aguda (IRA), uma manifestação frequente na COVID-19, pode comprometer a função renal em longo prazo. Avaliamos a função renal após a alta hospitalar de pacientes que desenvolveram IRA associada à COVID-19. Métodos: Esta é uma coorte ambidirecional. A TFGe e a microalbuminúria foram reavaliadas após a alta hospitalar (T1) em pacientes que desenvolveram IRA devido à COVID-19, comparando os valores com dados de hospitalização (T0). P < 0,05 foi considerado estatisticamente significativo. Resultados: Após uma média de 16,3 ± 3,5 meses, 20 pacientes foram reavaliados. Houve uma redução média de 11,5 (IIQ: –21; –2,1) mL/min/1,73m2 por ano na TFGe. Quarenta e cinco por cento dos pacientes apresentaram DRC no T1, eram mais velhos e haviam sido hospitalizados por mais tempo; isso se correlacionou negativamente com a TFGe no T1. A microalbuminúria foi positivamente correlacionada com a PCR no T0 e com uma queda na TFGe, assim como a TFGe na admissão com a TFGe no T1. Conclusão: Houve uma redução significativa na TFGe após IRA devido à COVID-19, sendo associada à idade, tempo de internação, PCR e necessidade de hemodiálise.