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Psychology of stress and adaptation during complex crises: Practical aspects of assisting people in difficult circumstances

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EUROPEAN JOURNAL OF TRAUMA & DISSOCIATION 2025年第2期9卷 100541-100541页

作者： Oliinyk, Oksana Zholdoshbaev, Dilzatbek Koshonova, Saltanat Kravtsov, Yuriy Bocheliuk, Vitalii Natl Univ Life & Environm Sci Ukraine Dept Psychol 15 Heroiv Oborony Str UA-03041 Kyiv Ukraine Osh State Univ Dept Gen Psychol 331 Lenin Str Osh 723500 Kyrgyzstan Dniprovsky State Tech Univ Dept Sociol 2 Dniprobudivska Str UA-51900 Kamianske Ukraine Khortytsia Natl Acad Dept Psychol & Social Work 59 Naukove Mistechko Str UA-69017 Zaporizhzhia Ukraine

Background: The difficult living conditions caused by the hostilities have a significant impact on the destruction of people's mental health. The research relevance is determined by the aforementioned impact and the necessity for a scientific basis for designing effective assistance programmes. Objective: The study aims to address the impact of military operations on the mental health of the civilian population in Ukraine. Methods: To achieve this goal, theoretical research methods (analysis and synthesis, classification, generalisation) and empirical research methods (surveys, statistical analysis of data) were used. Results: The main results of the study: Many civilians in Ukraine are facing complex crises due to the hostilities and need assistance. Individual resilience to stress is determined by their characteristics and how these characteristics can interact with the factors of influence (four levels: individual, family, community, and societal levels). The impact of hostilities on the mental health of civilians is significant and negative. People who have been exposed to war or its aftermath experience high levels of stress symptoms, leading to post-traumatic stress disorder, depression, anxiety and other mental health problems. The level of mental health problems is higher among people who have experienced more traumatic events, such as loss of loved ones, violence, and loss of home. There are several key areas in which practical assistance can be provided, including psychosocial support, which can be provided through information support, emotional support, psychological counselling, trauma therapy, and medication. Conclusion: The practical significance of the study is determined by the contribution to understanding the impact of war on people's mental health. The results of the study can be used to improve the lives of people affected by the war. Namely, to develop and implement effective assistance programmes.

关键词： Military conflict Civilian population Living conditions Aftermath experience Mental health

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Chaotic Time-variant Dynamical System 15

Chaotic Time-variant Dynamical System

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15th International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer Engineering (TCSET)

作者： Voliansky, Roman Kluev, Oleg Sadovoi, Oleksandr Sinkevych, Oleksiy Volianska, Nina Dniprovsk State Tech Univ Electrotech & Electromech Dept Kamyanske Ukraine Natl Forestry Univ Ukraine Dept IT Lvov Ukraine Dniprovsky State Tech Univ Heat Transfer Dept Kamyanske Ukraine

ISBN: (纸本)9781728155661

The paper deals with the development of scientific backgrounds for the first order infinite-dimensional chaotic systems' design. We suggest performing this design by replacing real time with some virtual variable, which is defined as a function of time and a system state variable. This virtual variable can be considered as the "new" time and it can be used to define transformation operator, which allows us to describe system dynamics in the "new" time domain by using known differential equations of the chaotic systems. We use the Mackey-Glass system as the initial chaotic system and show two transformations for this system by using different transformation operators. These transformations gave us the possibility to define the high-frequency dynamics for two chaotic systems. These systems can be used in different secured applications.

关键词： chaotic system coordinate transformation differential equation with time-delayed right-hand expression high-frequency chaotic oscillations

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Synthesis of a Quasi-Optimal in Speed Relay-Modal Position Control System, Based on the N-I Switching Method

Synthesis of a Quasi-Optimal in Speed Relay-Modal Position C...

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IEEE International Conference on Modern Electrical and Energy Systems (MEES)

作者： Derets, Oleksandr Sadovoi, Oleksandr Dniprovsky State Tech Univ Kamyanske Ukraine

ISBN: (纸本)9781728125695

The mathematical apparatus of the N - i switching method, due to its simplicity, made it possible to find out relations between the parameters of relay-modal and quasi-optimal in speed sliding mode control systems. Initially, this result was formulated for control systems of neutral-stable dynamic objects. This paper presents a comparative study of the dynamics of systems with different settings. Based on it, an adaptation of the optimization method for the speed of relay-modal systems to the synthesis of a regulators cascade for positional electric drive is proposed.

关键词： relay-modal system optimal speed N-i switching method

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Synthesis Algorithm of Proximate Time-Optimal Servo Drive with Constraint of state Coordinates 20

Synthesis Algorithm of Proximate Time-Optimal Servo Drive wi...

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IEEE 20th International Conference on Computational Problems of Electrical Engineering (CPEE)

作者： Derets, Oleksandr Sadovoi, Oleksandr Derets, Yevgeniya Dniprovsky State Tech Univ Kamyanske Ukraine

ISBN: (纸本)9781728128108

The N - i switching method made it possible to establish analytical relations between the constraints of the state coordinates of the electric drive and the parameters of sliding mode control systems. This problem is solved for the cases of optimization in time domain and modal control. This paper presents a computational algorithm that implements a parametric synthesis of a control system taking into account changes in the levels of constraints caused by the performance of various shapes transient trajectories.

关键词： relay-modal system optimal speed N-i switching method

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Interval Model of the Piezoelectric Drive 14

Interval Model of the Piezoelectric Drive

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14th International Conference on Advanced Trends in Radioelecrtronics, Telecommunications and Computer Engineering (TCSET)

作者： Voliansky, Roman Sadovoi, Alexander Volianska, Nina Dniprovsky State Tech Univ Electrotech & Electromech Dept Kamyanske Ukraine Dniprovsky State Tech Univ Heat Transfer Dept Kainyanske Ukraine

ISBN: (纸本)9781538625569

Piezoelectric drives are widely used as high precision actuators. The paper deals with the design of interval models for studying of piezoelectric drive's dynamic. Results of such studying can be used for the construction of a precise position control system for a piezoelectric drive. We propose to design an interval model by defining some intervals where piezoelectric motor nonlinearity and uncertainty exist. We show some benefits of the proposed approach for modeling of piezoelectric drive and approve them by given simulations' results.

关键词： piezoelectric drive mathematical model interval methods linearization

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Investigation of the Third-Order Sliding Mode Control System With Different Structures of the Control Objects Synthesized by the N-i Switching Method

Investigation of the Third-Order Sliding Mode Control System...

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International Conference on Modern Electrical and Energy Systems (MEES)

作者： Derets, Oleksandr Sadovoy, Oleksandr Dniprovsky State Tech Univ Kamyanske Ukraine

ISBN: (纸本)9781538617502

The N-i switching method provides optimization for the speed of sliding mode control systems with cascade-subordinate structure of arbitrary order N. It is characterized by the simplicity of the mathematical apparatus and is oriented to easily realizable structures of technical systems, in particular, electric drives. However, this synthesis method involves limiting all the canonical coordinates of the system in transient modes, that is, it reduces the control object to a chain of N integrating links. The present work demonstrates the efficiency of the N-i switching method to systems whose control objects have a structure different from the ideal cascade of integrators.

关键词： sliding mode optimality in time domain N-i switching method

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The Transformation of Linear Dynamical Object's Equation to Brunovsky Canonical Form 4

The Transformation of Linear Dynamical Object's Equation to ...

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4th IEEE International Conference on Actual Problems of Unmanned Aerial Vehicles Developments (APUAVD)

作者： Voliansky, R. S. Sadovoi, A. V. Dniprovsky State Tech Univ Kamyanske Ukraine

The paper deals with the synthesis of controller, which transforms dynamics of linear control object to Brunovsky form, by solution of inverse dynamics problem. The articles gives theoretical basis and examples of usi... 详细信息

ISBN: (纸本)9781538618172

关键词： dynamical object linear controller Brunovsky canonical form of dynamic's equation solution of inverse dynamics problem

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Second Order Sliding Mode Control of the Inverted Pendulum

Second Order Sliding Mode Control of the Inverted Pendulum

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International Conference on Modern Electrical and Energy Systems (MEES)

作者： Voliansky, R. S. Sadovoi, A. V. Dniprovsky State Tech Univ Kamyanske Ukraine

ISBN: (纸本)9781538617502

The paper deals with the synthesis of interval control system's for inverted pendulum. The contents of this paper are written as follows. Firstly, the generalized interval model of inverted pendulum is given. Then generalized block diagram of control system is proposed and defined generalized control outputs. Furthermore, interval control for inverted pendulum is synthesized and simulations results are given to confirm the proposed approach. Finally, conclusions are written down. The used methods granted asymptotically stability of closed loop pendulum's control system. The proposed approach allows one to create control system of wide range nonlinear dynamical objects. Using of this approach simplifies mathematical model of a nonlinear control object and transform this model to Brunovsky form without performing complicated feedback linearization.

关键词： dynamical object inverted pendulum Brunovsky canonical form of dynamic's equation solution of inverse dynamics problem optimal control nonlinear control interval methods

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Transformation of 3-D Jerk Chaotic System into Parallel Form

Transformation of 3-D Jerk Chaotic System into Parallel Form

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International Symposium on Advanced Intelligent Informatics (SAIN)

作者： Voliansky, Roman Pranolo, Andri Wibawa, Aji Prasetya Haviluddin Dniprovsky State Tech Univ Dept Elect Engn Kamyanske Ukraine Univ Ahmad Dahlan Dept Informat Yogyakarta Indonesia Univ Negeri Malang Dept Elect Engn Malang Indonesia Univ Mulawarman Dept Comp Sci Samarinda Indonesia

ISBN: (纸本)9781538652800

The paper deals with the developing of the methodological backgrounds for studying 3-D chaotic systems. Such backgrounds allow us to perform the coordinate transformation for 3-D nonlinear dynamical object from serial form into parallel one. Above-mentioned transformation is based on the partial fraction decomposition of the systems' feedforwards. Usage of the proposed approach is one of the ways of constructing a system with a chaotic dynamic and defining novel attractors. The approach has been proven by considering the example of modeling and simulating of third order chaotic system.

关键词： 3-D jerk chaotic system chaotic dynamic coordinate transformation partial fraction decomposition

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