bluuebunny/crossref_metadata_2025 huggingface dataset:
FORMALIZATION OF INFORMATION CONFLICT BASED ON DYNAMIC SYSTEMS THEORY
Authors:   PJSC “Inteltech”, Mamonchikova A.S.
Published: January 2023

Setting the task: the progressive development of means of destabilizing effects on the telecommunication system requires improvement of the scientific and methodological apparatus for modeling effects from such effects. To date, dynamic processes of information conflict remain insufficiently studied in conditions of joint influence of means of destabilizing effects and technical means of exploration on telecommunication system. Problem situation: presence of integral effects on telecommunication system of technical means of exploration and means of destabilizing effects, in the absence of models formalizing such tripartite interactions. The direction of formalization of information conflict on the basis of the theory of dynamic systems taking into account the time parameters of its development is not sufficiently developed. The goal is to build a model of a three-way dynamic information conflict. Methods used: mathematical apparatus of dynamic systems theory is used to construct a mathematical model of information conflict and its research. The model itself is represented as a system of differential equations. The subject of the study is the ratio of competitive distribution of information resources between the parties to the information conflict. Object of research: telecommunication system under the influence of destabilizing effects and technical means of exploration. Scientific novelty: for the first time for the developed model three sides of dynamic conflict are presented, taking into account the dynamics of development of information conflict in time, different degrees of conflict interaction between individual parties are taken into account, synthesis of universal approaches generalizing dynamic information conflict between the three sides is presented. Practical significance: The proposed model can be used to explore a broad class of conflict interactions in application areas in different spheres. It will be useful in dealing with such dynamic conflicts involving three or more parties.
MODELING OF DISCRETE ORTHOGONAL CODE SEQUENCES FOR INFORMATION TRANSMISSION SYSTEMS
Authors:   North-Caucasus Federal University, Studenikin A.V. , Zhuk A.P. ,   North-Caucasus Federal University
Published: January 2023

The development of wireless information transmission systems with code division of channels, taking into account the specifics of their functioning, is associated with the generation and processing of complex signals with a wide frequency band of the spectrum and the required correlation characteristics, as well as with the use of special algorithms for information exchange. The problem of synthesizing ensembles of discrete orthogonal code sequences with minimal side peaks of correlation functions and having minimal dis placement of the amplitude-frequency spectra is relevant. Successful solution of this problem affects the quality of output information, noise immunity, and signal-to-noise level of the information trans mission system. The aim of the article is to synthesize an ensemble of discrete orthogonal code sequences for a wireless information transmission system with code division of channels, taking into account restrictions on energy, spectral and correlation characteristics. A variant of solving the problem of synthesizing ensembles of discrete orthogonal code sequences with minimal side peaks of correlation functions having minimal displacement of the amplitude-frequency spectra is to use the modeling method based on eigenvectors of diagonal symmetric matrices. The article presents a synthesized ensemble of discrete orthogonal phase-manipulated sequences with a volume of N = 16. The use of a synthesized ensemble of discrete orthogonal sequences as modulating sequences in wireless information transmission systems with code division of channels provides a gain in noise immunity in the case of narrow-band interference of fixed power. From the above, it can be seen that the resulting ensemble of discrete orthogonal code sequences exceeds the characteristics of the known systems of orthogonal code sequences and meets the requirements. The use of the proposed method for modeling ensembles of discrete orthogonal code sequences with improved autocorrelation and spectral properties for wireless information transmission systems with code separation of channels makes it possible to increase the noise immunity and efficiency of using the frequency range of these systems.
A MODEL OF SECURE SOFTWARE OPERATION THAT FORMALIZES THE CONTROL OF MEMORY USAGE AND CPU ACCESSES
Authors:   Federal State Unitary Enterprise ", Samarin N.N. ,   Kvant Research Institute"
Published: January 2023

In the absence of software source codes, it is necessary to use technically complex procedures, including decompilation, reverse engineering, etc. At the same time, in practice, the decision on whether the software belongs to the class of legitimate programs or not should be made promptly, which imposes a limit on the decision-making time. Also, modern information and industrial system often include a significant number of components with low computing power, which is why it is important to minimize the consumption of computing resources for software security analysis. Solving the problem of security analysis is also complicated by the fact that full automation of this process is not possible due to the high complexity of the subject area. To improve the efficiency of solving this problem in conditions of limited time and computing resources, as well as the lack of open source software, a model of secure software functioning is proposed, which includes a hypervisor and takes into account the features of malicious software manifestations in the system. This paper presents a model that describes the secure operation of software in terms of the processes and functions it performs. The peculiarity of the proposed model is that it takes into account the specifics of malware operation and is suitable for implementation in systems with limited computing resources.
FUZZY LOGIC DATA PROTECTION MANAGEMENT
Authors:   Moscow Technical University of Communications and Informatics, Bolshakov A.S. , Zhila A. I. ,   Moscow Technical University of Communications and Informatics, Osin A.V. ,   Moscow Technical University of Communications and Informatics
Published: January 2023

Introduction: to ensure the necessary level of personal data security in computer systems, it is advisable to create an information security management system that would allow you to help choose protective measures for certain input data. Purpose: to develop an algorithm for the personal data protection model that allows considering a set of input factors for making decisions on information security. Methods: it is proposed to use the fuzzy inference apparatus as a mathematical apparatus for describing such a situation. The main advantage of using this mathematical approach in modeling a control system is the description of conditions and methods for solving problems under uncertainty. Results: when building an information security management system, defined a set of rules and study the influence of changes in input variables on a set of protective measures. The model developed on the basis of this algorithm using fuzzy inference identifies the impact of information security threats on decision-making on the choice of measures to protect personal data in a computer system. The result of threat modeling is also planning that illustrate the relationship between the input and output parameters of the model. These planes allow you to determine the management decision on the choice of measures depending on the values of the selected parameters. The paper proposes three thresholds for the values of each of the protective measures, which determine the need for the measures used to neutralize the simulated threats. The influence of input variables on the output values of the constructed model identify a change in the distribution of the terms of the membership functions of the input parameters, the change of which can significantly affect the final decision on information security management. Discussion: the results of the work indicate the need for an adequate description of both the input variables and the response of the output variables of the model to the input variables in order to take effective measures to protect information.
FREQUENCY STABILIZATION BASED ON PRIMARY FUNDAMENTAL PROPERTIES OF LARGE SYSTEMS
Authors:   Don State Technical University, Safaryan O.A. , Alferova I.A. ,   Don State Technical University, Engibaryan I.A. ,   North Caucasian branch of Moscow Technical University of Communications and Informatics, Yukhnov V.I. ,   North Caucasian branch of Moscow Technical University of Communications and Informatics
Published: January 2023

Introduction. The article deals with issues related to the manifestation of the primary fundamental properties of large systems, such as synergy and emergence, potentially inherent in large systems with the same or similar properties of components. These properties can be implemented at a certain time interval when measuring the values of the signal phases at a time. It is shown that the manifestation of the synergistic property in the system of simultaneously and independently operating generators makes it possible to reduce the error in estimating random fluctuations in the frequency of generators, and the manifestation of the emergent property eliminates a constant frequency shift from the nominal value. Based on the analysis of the properties of the obtained estimates, the conditions for obtaining unbiased effective estimates of the frequency of each of the generators are formulated. Result. The manifestation of the properties of synergy and emergence in a system of simultaneously and independently functioning generators is shown. It is noted that from a physical point of view, an increase in the accuracy of estimating the frequency of signals corresponds to multiple unequal indirect measurements. The simulated frequency deviations of each of the generators and the difference between the values of the frequency deviation and the corresponding values of the estimates obtained are shown. The results of mathematical modeling are presented, confirming the validity of the theoretical results obtained and the main patterns noted.
MATHEMATICAL MODELING OF ORGANIZATIONAL SYSTEMS
Authors:   St. Petersburg University of the Ministry of Internal Affairs of Russia, Grachev M.I. , Burlov V.G. ,   Admiral Makarov State University of Maritime and Inland Shipping, Gracheva N.G. ,   St. Petersburg University of the Ministry of Internal Affairs of Russia
Published: January 2023

Introduction. Modern rates of development of information systems and web-technologies are increasingly being introduced into the life of all mankind, including organizational systems, which requires the improvement of management and decision-making processes. In modern sources of literature, the consideration of management processes is given on the basis of analysis, but from the side of the synthesis of the mathematical model of management decisions, they are not considered, which allows us to consider the ongoing research as an urgent task. For the head of the organizational system, the solution of the problem of management is the most important task based on the complex interaction of all departments of the managed system. Practical relevance: When a destructive impact occurs in a managed system, a decision-maker should have a management decision model that allows timely management decisions to counter emerging threats. Counteraction is carried out at the expense of the resources available to the decision-maker. The mathematical model of a management decision makes it possible to respond in a timely manner to emerging threats in the system and make appropriate management decisions with a given level of the efficiency indicator of the decision being made. The application of the Kolmogorov differential equations makes it possible to link the finding of a mathematical modeling system with various states of the controlled system. Discussion: The resulting indicator of the effectiveness of the decision makes it possible to link three states of the system when considering the target process, namely, the process of threat formation, the process of threat identification and the process of threat neutralization. By setting the required indicator of the effectiveness of a management decision, it allows the manager to respond in a timely manner to the destructive impact, to use the available resources to ensure the achievement of the management goal.
ONE OF THE EFFECTIVE APPROACHES TO PROTECTING INFORMATION IN THE RADIO LINKS OF ROBOTIC COMPLEXES WITH GROUPS OF UNMANNED AERIAL VEHICLES BASED ON BLOCKCHAIN TECHNOLOGY
Authors:   North Caucasus branch of Moscow Technical University of Communications and Informatics, Shvidchenko S.A. , Ivanov S.V. ,   Krasnodar Higher Military School, Khorolsky E.M. ,   Moscow State Technical University of Civil Aviation, Saveliev I.V. ,   Krasnodar Higher Military School
Published: January 2023

Introduction. The modern development of technology is impossible without computer technology and microprocessor technology, which directly affect the flow of various technological processes in the field of robotics. Both the improvement of computer technology and computer technology, and the development of artificial intelligence are increasingly being introduced into the technical order and successfully replacing the human resource. Practical relevance: Along with the globally increasing requirements for autonomy of actions imposed on robotic complexes with groups of unmanned aerial vehicles (hereinafter – RTK with UAVs), there is a need to build a new software, algorithmic and mathematical support in order to rationally use the available resources in organizing interaction groups of UAVs under destructive influences from a probable malefactor. Discussion: In view of the fact that its actions are almost impossible to predict and determine the exact model of its functioning, it is advisable to develop such a model that would allow taking into account all possible actions of an intruder aimed at disrupting (failing) the operation of the complex and achieving the maximum level of its information security. Such a model can be built on the well-known mathematical and software-algorithmic apparatus – blockchain technology. The modern implementation of the blockchain technology apparatus can be effectively used in the implementation of the work of the RTK and take into account situational models of the impact of the external environment on the processes of transmission and processing of information circulating in the RTK control channel, as well as provide the necessary level of information security of the system.
A PRECISION LABORATORY FURNACE FOR PRODUCING NANOPARTICLES WITH A PROGRAM CONTROL SYSTEM AND CLOUD MONITORING
Authors:   Don State Technical University, Lukyanov A.D. , Aznabaev M.I. ,   Don State Technical University, Plekhanova E.V. ,   Don State Technical University, Kapitanova I.R. ,   Don State Technical University, Plekhanova T.G. ,   Shakhty Road Institute (branch) of the South Russian State Polytechnic University (NPI) M.I. Platova
Published: January 2023

Introduction: The development of a precision reaction furnace with a microprocessor control system based on an IoT class ESP-8266 microcontroller and a K-type thermocouple is presented. The temperature in the furnace hearth is maintained in the range from 50 to 350 °C with an accuracy of 1%. The temperature compensation of the cold junction of the thermocouple is provided. To improve the contro-accuracy and adjust the controller parameters, a reference mathematical model is used. Methods: a procedure for identifying the parameters of the reference model using the least squares has been developed. Regulator settings eliminate the occurrence of overshoot or fluctuations in the transient. A mode for monitoring the temperature and current power of the heater with visualization and logging of telemetry data to the cloud service (Telegram bot) has been implemented. Results: a mobile application implemented on a smart phone allows you to remotely receive temperature data and control the operating modes of the furnace. The duration of the experiment is actually not limited, the continuous operation of the furnace was tested on an interval of 24 hours. For high temperatures, in order to preserve the crucible, a mode of automatic stepwise heating and cooling is implemented. The furnace allows chemical reactions to be carried out at high temperatures in stabilization or program control modes, including decomposition reactions or the synthesis of nanoparticles from copper and other metals.
USING EXPERT SYSTEMS TO IMPROVE THE RELIABILITY OF RADIO COMMUNICATION SYSTEMS
Authors:   Don State Technical University, Naydenova Ju.I. , Safaryan O.A. ,   Don State Technical University, Alferova I.A. ,   Don State Technical University, Reshetnikova I.V. ,   North Caucasus branch of Moscow Technical University of Communications and Informatics
Published: January 2023

Introduction. The article develops a dynamic expert system (ES) based on a model of a system for monitoring the technical condition of signal generators in telecommunication systems. In the proposed system, decision-making is based on a constant analysis of the parameters of the time-frequency parameters of signals generated by generators in infotelecommunication systems. The purpose of the work is to develop an expert system based on a model of a system for monitoring the technical condition of signal generators in infotelecommunication systems. Research results: In the course of the work, an analysis of expert systems was carried out, a dynamic expert system was selected from the real-time communication classification, the structure of the expert system was proposed, each of its elements was considered, an expert system was developed that allows predicting changes in the parameters of transmission channel generators in telecommunication systems, and the resulting expert system was tested based on two assumptions, which allows us to draw conclusions about the correctness of the development. For this purpose, the result of processing the input data is given based on two assumptions – the law of normal distribution and the uniform distribution law. On the basis of this, it can be concluded that the proposed developed version of the ES construction and the software product implementing it is working. The expert system makes it possible to analyze incoming data in the current time, as well as generate an output.
COMPARATIVE ANALYSIS OF DIFFERENT RECEIVE ALGORITHMS FOR BLAST ARCHITECTURE IN MOBILE COMMUNICATION SYSTEMS
Authors:   Institut Superieur des Etudes Technologiques en Communications de Tunis, Elabed Salem
Published: January 2023

The Layered Space-Time Processing approach to STC was first introduced by Lucent’s Bell Labs, with their BLAST family of STC structures. The information bits are demultiplexed into individual streams, which are then fed into individual encoders. These coders may be binary convolutional coders, or even no coding at all. The outputs of the coders are modulated and fed to the separate antennas, from which they are transmitted, using the same carrier-frequency/symbol waveform (TDMA) or Walsh code (CDMA). At the receiver, a spatial beamforming/nulling (zero-forcing) process is used at the front end in order to separate the individual coded streams, and feed them to their individual decoders. The outputs of the decoders are multiplexed back to reconstruct the estimate of the original information bitstream. Various receivers for communication system with Space-Time Coding in MIMO Channel are considered. Performance analysis was provided by statistical simulation for various parameters of communication system.
THE CONTROLLABILITY OF RLCM NETWORKS OVER F(Z) AND THEIR APPLICATIONS
Authors:   Wuhan University of Technology, Feng Xiao-Yu , Lu Kai-Sheng ,   Wuhan University of Technology
Published: January 2023

The subject of controllability and observability in dynamical systems is one of the important matters in linear system theory. The controllability and observability in linear systems over the field R of real numbers were heavily studied. If the values of resistors, capacitors, and self and mutual inductors in RLCM network are regard as independently variable parameters, the network is defined over the field F(z) of all rational functions in its physical parameters. Some concepts and results on the reducibility and separability for this network are presented; the controllability problem and application are discussed. In this paper the author will discuss the relationship between separability and reducibility of RLCM networks over F(z), the relationship between the physical structure of RLCM networks and structural controllability. The results in this paper can be used to study different kinds of linear or nonlinear electrical networks (over F(z)).
NONLINEAR DISTORTION AND NOISE ANALYSIS OF GENERAL GM-C FILTERS
Authors:   Gdansk University of Technology, Koziel S. , Szczepanski S. ,   Gdansk University of Technology, Sanchez-Sinencio E. ,   Department of Electrical Engineering Texas A&M University
Published: January 2023

Systems such as Gm-C filters are ideally designed to exhibit linear characteristics. However, their components – especially transconductors – are intrinsically nonlinear. Although there exist many approaches that aim at reducing nonlinear effects while dealing with practical design problems, nonlinear distortion cannot be canceled out completely. Thus, it is important to estimate a degradation of filter performance caused by nonlinearities. In this paper we propose a simple and general method to perform a transient analysis of any Gm-C filter structure based on a matrix description and macro-modeling of transconductors. An analytical description of general Gm-C filters with nonlinear transconductors is introduced. A differential system that determines dynamics of a general structure of Gm-C filter is formulated. This allows us to carry out an effective and fast transient analysis of any Gm-C filter using standard numerical methods. The approach can be applied to investigate any non-linear effects in filters. The noise analysis of Gm-C filters in general setting is also presented. The accuracy of the proposed methods is confirmed by comparison with SPICE simulation. Example of application for performance optimization of 4th order Chebyshev filter is given.
BLAST PERFORMANCE IN MIMO WIRELESS COMMUNICATION SYSTEMS
Authors:   University of California, Lee Byung Moo , de Figueiredo Rui J. P. ,   University of California
Published: January 2023

Recently, a new detection algorithm for the Vertical Bell Laboratories Layered Space Time (V-BLAST) system, which we call Enhanced-V-BLAST, or simply E-V-BLAST, was proposed. V-BLAST has demonstrated very high spectral efficiency, there is a wide gap between the original V-BLAST algorithm and the Maximum Likelihood (ML) algorithm. Recently, some algorithms have been presented to make narrower this gap. In a new detection algorithm (Enhanced (E) V BLAST) for V-BLAST system was presented which showed significantly better performance and flexibility than the original V-BLAST detection. The E-V-BLAST algorithm gets closer to the optimum detection Maximum Likelihood (ML) algorithm by making decisions based on multiple symbols. The Enhanced (E)-V-BLAST has two parameters which can be adjusted to achieve a desired performance and complexity trade-off. In the present paper, we analyze the performance of EV-BLAST as a function of the two inherent adjustable parameters of E-V-BLAST. On the basis of this analysis, we obtain some useful characteristics of the E-V-BLAST algorithm which allow one to achieve the desired performance and complexity trade-off.
GLOBAL CONNECTIVTY REPORT 2022. CHAPTER 1. UNIVERSAL AND MEANINGFUL CONNECTIVITY: THE NEW IMPERATIVE
Authors:   ITU Telecommunication Development Bureau, Kende Michael , Livingstone Sonia ,   ITU Telecommunication Development Bureau, Minehane Scott ,   ITU Telecommunication Development Bureau, Minges Michael ,   ITU Telecommunication Development Bureau, Molloy Simon ,   ITU Telecommunication Development Bureau, Sciadas George ,   ITU Telecommunication Development Bureau
Published: January 2023

In the 30 years since the creation of the ITU Telecommunication Development Sector in 1992, the number of Internet users surged from a few million to almost five billion. This trend has enabled a digital transformation that has been, and is, transforming our societies and our economies. Yet the potential of the Internet for social and economic good remains largely untapped: one-third of humanity (2.9 billion people) remains offline and many users only enjoy basic connectivity. Universal and meaningful connectivity – defined as the possibility of a safe, satisfying, enriching, productive, and affordable online experience for everyone – has become the new imperative for the 2020-2030 Decade of Action to deliver on the Sustainable Development Goals (SDGs). The Global Connectivity Report 2022 takes stock of the progress in digital connectivity over the past three decades. It provides a detailed assessment of the current state of connectivity and how close the world is to achieving universal and meaningful connectivity, using a unique analytical framework. It goes on to showcase solutions and good practices to accelerate progress. This article presents a short version of the report (Part I).
PRIVATE WIRELESS MARKET
Authors:   Nokia, Daeuble Stephane , Williams Carlijn ,   Nokia
Published: January 2023

Label switching technoloIndustry 4.0 operations enable you to fuse physical and digital processes by connecting everything from vehicles to sensors and mobile workers in the most flexible, affordable, secure and reliable way. By digitalizing operations, enterprises can easily transform data into insights and become more agile and proactive. To meet the requirements of AI, machine learning and automation, industries need highly reliable, low latency and secure wireless connectivity with high bandwidth. 4.9G/LTE and 5G industrial-grade private wireless networks are the only wireless solutions available that have proven records to meet the demands of Industry 4.0 mission and business-critical applications. They provide robust, secure and reliable connectivity for everything that is critical to your operations, from people and machines to sensors and analytics. Radio access points provide coverage of your outdoor and indoor spaces, similar to Wi-Fi, but you will need far fewer. Unlike Wi-Fi, there is a core network, which is the key to enabling mobility, ensuring security and maintaining quality-of-service parameters. The backhaul network is no different than what you would use to connect Wi-Fi access points, whether cabled Ethernet, passive optical LAN and/or microwave depending on the application and the distances served.gy, MPLS, Multiprotocol label switching, MPLS TE, Routing problems, BGP “Blackhole”.
GLOBAL CONNECTIVTY REPORT 2022. CHAPTERS 3-4. ACCELERATING PROGRESS TOWARDS UNIVERSAL AND MEANINGFUL CONNECTIVITY & THE CRITICAL ROLE OF MIDDLE-MILE CONNECTIVITY
Authors:   ITU Telecommunication Development Bureau, Kende Michael , Livingstone Sonia ,   ITU Telecommunication Development Bureau, Minehane Scott ,   ITU Telecommunication Development Bureau, Minges Michael ,   ITU Telecommunication Development Bureau, Molloy Simon ,   ITU Telecommunication Development Bureau, Sciadas George ,   ITU Telecommunication Development Bureau
Published: January 2023

The Global Connectivity Report 2022 takes stock of the progress in digital connectivity over the past three decades. It provides a detailed assessment of the current state of connectivity and how close the world is to achieving universal and meaningful connectivity, using a unique analytical framework. It goes on to showcase solutions and good practices to accelerate progress. The second part of the report consists of seven thematic deep dives on infrastructure, affordability, financing, the pandemic, regulation, youth, and data. Chapter 3 explores options to accelerate progress towards universal and meaningful connectivity. Expanding broadband networks is needed to eliminate the remaining blind spots and improve the quality of connectivity. Measures include reducing constraints on foreign direct investment to attract capital for upgrading and expanding digital infrastructure; ensuring sound ICT sector regulation to help build competitive markets and enhance predictability; promoting infrastructure sharing to reduce costs; ensuring the supply of adequate, inexpensive spectrum to help reduce coverage gaps; and ensuring sufficient capacity and a shift to new generations of mobile broadband. Solutions to ensure an adequate energy provision to power ICT infrastructure include policy incentives, reducing duties and taxes on green power equipment and allowing independent power producers. Chapter 4 explores the importance of middle-mile connectivity as countries develop digital economies – achieving better quality, lower costs and greater redundancy. The “middle mile” consists of infrastructure responsible for storing and exchanging data. It is an overlooked yet critical link in the connectivity chain, between international connectivity – or “first-mile” connectivity – and “last-mile” connectivity, made of the infrastructure that connects the users, which is hence more visible and tangible. The three key components of a domestic data infrastructure ecosystem are Internet exchange points (IXPs), data centres and cloud computing.
EFFECT OF POTASSIUM ON THE HEAT CAPACITY AND THERMUNCTIONS OF AlFe5K10 ALUMINIUM ALLOY
Authors:   Institute of Chemistry, in and Nikitin National Academy of Sciences of Tajikistan, Ganiev Izatullo N.
Published: January 2023

Heat capacity is the most important characteristic of substances, and its change with temperature can determine the type of phase transformation, Debye temperature, the energy of formation of vacancies, the electron heat capacity coefficient, and other properties. In the work, the heat capacity of the AlFe5K10 alloy with potassium was determined in the “cooling” mode from the known heat capacity of the standard copper sample. In order to succeed, by processing the curves of the cooling rates of the samples of the aluminum alloy AlFe5K10 with potassium and the standard, polynomials describing their cooling rates were obtained. Further, according to the experimentally found values of the cooling rates of the samples of alloys and the standard, knowing their masses, the polynomials of the temperature dependence of the heat capacity of the alloys and the standard were established, which are described by a four-termed equation. Using integrals of specific heat, models of the temperature dependence of the change in enthalpy, entropy and Gibbs energy were established. The dependences obtained show that with increasing temperature, the heat capacity, enthalpy and entropy of the alloys increase, while the values of Gibbs energy decrease. At the same time, potassium addition reduces the heat capacity, enthalpy and entropy of the original AlFe5K10 aluminium alloy. The value of Gibbs energy increases in that case.
APPLICATION OF DIFFERENT MODIFICATIONS OF CRYSTALLINE STRUCTURES OF MANGANESE DIOXIDE IN TECHNOLOGICAL PROCESSES
Authors:   St Petersburg State Institute of Technology, Novikova Darya A. , Flisyuk Oleg M. ,   St Petersburg State Institute of Technology, Martsulevich Nikolai A. ,   St Petersburg State Institute of Technology, Likhachev Il'ya G. ,   St Petersburg State Institute of Technology
Published: January 2023

The features of various types of microstructure of manganese dioxide and the area of its industrial application at present and the prospects for its possible use in the near future were considered. The possible usage of manganese dioxide of active crystalline structure as a sorbent in the purification of exhaust gases from nitrous gases and sulfur dioxide was noted. That usage is of particular importance for solving ecological issues.
Pengetahuan, Praktek, dan Faktor-faktor Terkait Infeksi yang di Dapatkan Rumah Sakit di Antara Petugas Kesehatan di Rumah Sakit di Negara Berkembang
Authors: Bakar Nor Aroma Binti Abu , Yunos Norhanaza Binti Mohd , Zorkarphy Nor Zorrenee Bintia , Kudus Mohammad Nasir Bin Abdul , Phd Zetty Nurzuliana Rashed.
Published: January 2023

Rumah sakit merupakan lingkungan dengan potensi penyebaran infeksi yang tinggi dari petugas kesehatan ke pasien atau dari pasien ke petugas kesehatan. Implikasi infeksi rumah sakit ini dapat memicu implikasi negatif pada berbagai aspek antara lain memburuknya kesehatan masyarakat, sosial ekonomi negara dan berbagai dampak buruk lainnya. Oleh karena itu, studi evaluasi sistemik melalui survei artikel dilakukan untuk menyelidiki pengetahuan, praktik, dan faktor yang terkait dengan infeksi yang didapat di rumah sakit di antara petugas layanan kesehatan di rumah sakit di negara berkembang. Metodologi penelitian ini menggunakan database penelitian keperawatan termasuk CINAHL Plus dengan Teks Lengkap, Web Sains, Pusat Referensi Keperawatan Plus, dan SCOPUS, untuk mengidentifikasi artikel utama terkait yang diterbitkan antara tahun 2013 dan 2021 menggunakan istilah atau kata kunci penelitian berikut; infeksi yang didapat di rumah sakit, prevalensi, faktor terkait, petugas kesehatan, pengaturan rumah sakit. Temuan mengungkapkan lebih dari 10 artikel tetapi hanya lima artikel yang termasuk dalam review penerapan kriteria inklusi. Studi tinjauan artikel sistemik ini menyimpulkan bahwa tingkat pengetahuan dan praktik terkait HAI di antara petugas layanan kesehatan di negara berkembang berada pada tingkat sedang. Faktor-faktor yang berhubungan dengan prevalensi HAI antara lain; i) faktor pribadi seperti pengalaman kerja dan status pendidikan; ii) ketersediaan pedoman dan kurangnya pelatihan untuk staf. Para peneliti menyarankan beberapa langkah dan intervensi yang diusulkan, termasuk meningkatkan dan meningkatkan pendidikan kesehatan yang lebih efektif untuk petugas kesehatan dan masyarakat umum terkait dengan HAIs, melakukan pelatihan in-service dari waktu ke waktu untuk petugas kesehatan, meningkatkan standar prosedur terkait dengan sanitasi pengaturan rumah sakit dan penggunaan alat pelindung diri oleh petugas kesehatan, juga, pemantauan kepatuhan staf secara teratur dan terus menerus untuk memastikan bahwa statistik terkait HAI dapat dikurangi.
Зарубіжний досвід підготовки школярів до захисту своєї країни
Authors: Журба Катерина
Published: January 2023

У статті висвітлено зарубіжний досвід підготовки здобувачів освіти до захисту своєї країни, зокрема розкрито особливості підготовки дітей як в освітньому процесі, так і в діяльності громадських та дитячих організацій. Проаналізовано програму  Junior  Reserve Officers Training Corps (Програма підготовки молодших офіцерів запасу у старших класах, США), що поєднує навчальну й фізичну підготовку та спрямована на розвиток відповідних якостей характеру в дітей, які планують у майбутньому обрати військову професію. Встановлено, що в США діє 3 тис. спеціалізованих військових класів, де школярі навчаються за цією програмою. Доведено ефективність National Defense Cadet Corp (Кадетського  корпусу національної оборони), котрий фінансують місцеві громади, де навчаються діти з 11 років, та приватні й державні військові коледжі. Схарактеризовано мережу військових закладів середньої освіти Канади, де через Canadian Cadet Organization упроваджується державна програма військової підготовки школярів. Проаналізовано діяльність Академії Роберта Ленда – єдиної приватної військової академії неуніверситетського рівня. Окреслено роль Community Cadet Forces – мережі молодіжних організацій Великої Британії, що займаються підготовкою кадетів сухопутних військ, морських кадетів і кадетів військово-повітряних військ. Висвітлено специфіку та альтернативний характер підготовки здобувачів освіти у Німеччині. Також досліджено особливості підготовки школярів у Швейцарії, Латвії, Литві, Естонії, Польщі та модернізацію навчальних програм відповідно до викликів сучасності.

Практичне значення статті полягає в тому, що її матеріали можуть використовуватися в організації освітнього та виховного процесу закладів загальної середньої освіти, у процесі підготовки педагогів та у ході  педагогічної практики студентів.
Гейміфікація як інноваційний підхід в освітньому процесі
Authors: Констанкевич Лариса , Радкевич Мар’яна , Лехіцький Тарас
Published: January 2023

У статті розглянуто поняття гейміфікації, зокрема в освітньому процесі. З’ясовано, що на сучасному етапі однією з дієвих методик організації освітнього процесу є ігрова діяльність. У результаті дослідження з’ясовано, що під гейміфікацією в освіті розуміють упровадження ігор, ігрових технік та ігрових практик з освітньою метою.

Окреслено основні складові ігрової діяльності, розглянуто структурні елементи гейміфікації, схарактеризовано ігрові механізми на різних етапах освітньої діяльності. Виявлено, що будь-яка гра передбачає такі елементи: ролі, уявні ситуації, ігрові дії та правила гри. З’ясовано, що захоплення уваги учасників, створення певних умов для досягнення поставлених цілей, моделювання ігрової діяльності – основний момент гейміфікації.

У статті гра визначається як унікальний метод навчання, оскільки вона організовує дітей, впливає на їхній загальний розвиток, виховує особистість. Крім того, вона сприяє формуванню вмінь та навичок орієнтуватися у будь-якій життєвій ситуації. Саме ігрові технології є тією формою навчання, що сприяє практичному використанню знань, отриманих на уроці і в позаурочний час. Використання гейміфікації на уроках є актуальним, оскільки засоби, прийоми та методи, що використовуються під час проведення ігор, сприяють ефективності засвоєння знань, вносять в освітню діяльність елемент цікавості, підвищують рівень успішності дітей, сприяють виробленню вміння співпрацювати в команді.
An Epidemiological Neuropsychiatric and Mental Health Study in School Children and Related Educational Myths During Covid-19
Authors: Upadhyay PK
Published: January 2023

Objective: Paper deals with mental health of Children during covid -19 lockdown where the study has been shared-a voluntary organization working in Delhi, on the mental health issues of the school children. The field work has been done with school children on mental health issues and narratives in pandemic. It finally concludes as discussed, in discussion on the myths of our education system, digital divide in gender in DGs and EWS and camp model approach.
Kalanchoe Pinnata is a Miraculous Plant: A Review
Authors: Dogra Poonam
Published: January 2023

A variety of names for Kalanchoe pinnata include wondering the world, miraculous plant, and the Pattharchatta. It features tall cylindrical stems, meaty, deeply scalloped dark green leaves, and pendulous scarlet and bell-shaped blooms that are trimmed. It is well-known in the scientific community to display a wide spectrum of pharmacological actions that include the treatment of the most severe human disorders. The pharmacological studies are reviewed and discussed, focusing on actions such as immunomodulator, CNS depressant, pain reliever, antimicrobial, anti-inflammatory, anti-allergic, anti-anaphylactic, antileishmanial, Anti tumorous, antiulcer, anti-bacterial, fungicidal, antihistaminic, antiviral activity, febrifuge, gastroprotective, immune suppressants, insecticidal, muscle relaxant, sedative, and anticancer. The plant includes a variety of active substances, including lipids, organic acids, bufadienolides, alkaloid, triterpenes, glycosides, flavonoids, and steroids. Due to its current state, it is an endangered plant that needs to be preserved and researched.
Criteria for Accepting or Rejecting Cord Blood Units
Authors: Kazim Khalid
Published: January 2023

Rare hematopoietic stem cell populations are responsible for the transplantation engraftment process. Umbilical cord blood (UCB) is usually processed to the total nucleated cell (TNC), but not to the mononuclear cell (MNC) fraction. TNC counts are used to determine UCB unit storage, release for transplantation and correlation with time to engraftment [1]. It has been mentioned in the literature that there are several factors that affect harvesting of cord blood stem cells [2]. It was set to analyze the relationship between fetal weight and other factors that led to rejection of CBUs brought to DCRC from public and private donations. In this retrospective study, 375 donations of CBUs from January 2018 to October 2018 at DCRC were recorded. From literature, factors that are usually involved in rejection of CBUs were recorded and analyzed to mark the leading cause of rejection criteria. In this study, it showed that results did not find infants’ birth weight or mother’s age to have any value in rejection. Other factors’ results will be discussed.
Plasma Fat Status is Associated with the Prevalence of Opportunistic Infections and may Predict Disease Progression in HIV/AIDS
Authors: Nyirend Christopher
Published: January 2023

Objective: To establish the association between plasma fat status and the prevalence of opportunistic infections in HIV/AIDS patients.

Design and Methods: A Cross Sectional and Quantitative study involving 174 adult HIV/AIDS patients recruited over a period of 18 months at a University Teaching Hospital in Ndola, Zambia. Participants were subjected to clinical assessments with anthropometry, CD4+ count, viral load and plasma fat measurements at baseline and repeated on a follow-up visit. The Wilcoxon rank sum test for continuous variables and the Chi square test for categorical variables were applied to compare the study population by gender. The main research question was addressed by establishing the association between Plasma fat and Opportunistic infections, adjusted for potential confounders using the multiple linear regression model.

Results: The plasma fat status revealed a higher median total cholesterol of [3.86(3.02,4.62) mmol/l], median triglyceride [1.19(0.87,1.51) mmol/l] and LDL-c [2.31(1.58,2.90) mmol/l] for females than that for the males [3.53(3.06,4.61) mmol/l], [0.96(0.71,1.60) mmol/l] and [1.86(1.36,2.80) mmol/l] individually. In contrast, median HDL-c concentration were higher in the male [1.4(1.21,1.55) mmol/l] than the female gender [1.33(1.13,1.51) mmol/l]. The results per clinical status revealed relatively more males [17(27%)] than females [15(15.2%)], p=0.06 presenting with opportunistic infections. Results in both the overall and by gender regression analyses suggested a consistent inverse interaction involving most of the plasma fat types and BMI with opportunistic infections.

Conclusion: Plasma fat status was not significantly predictive of the prevalence of opportunistic infections. However, the consistent inverse association reported between plasma fat and opportunistic infections, may suggest a potential role of plasma fat in immune mechanisms or viral suppression and corresponding clinical outcomes.
How Do Lay People Identify Knee Swelling and What Would They Do About It: Survey Results in the Context of an Event on the Topic of Knee Osteoarthritis
Authors: Suppanz Michael
Published: January 2023

Objective: Besides pain, joint stiffness and muscle weakness, swelling is a common symptom of knee osteoarthritis. According to the literature, there are clinical tests such as the bulge sign or circumference measurement as part of the clinical examination to identify knee swelling. Pharmacological interventions, knee bandages, temporary sports bans and physical interventions are effective decongestant measures. In the conservative treatment of knee osteoarthritis, the promotion of self-management principles is crucial. However, the general population´s level of knowledge regarding the identification and treatment of knee swelling is unknown. To get directly in contact with lay people, a crowdsourcing approach is appropriate. Consequentially, the aim of our crowdsourcing-based study is to get an inside of how lay people identify knee swelling and which measures they would adopt.

Methods: Under the assumption that crowdsourcing-based methods can further develop conservative osteoarthritis treatment- in our case especially in the context of knee swelling-, a cross-sectional survey on knee swelling in osteoarthritis was carried out as part of a lecture including a workshop organised in a rural Austrian community. The 26 participants answered two open questions about characteristics and decongestant measures of knee swelling. A content structuring qualitative content analysis with a combined deductive and inductive approach followed by a frequency analysis was used to evaluate the data.

Results: The participants determine knee swelling primarily based on at least one of the cardinal symptoms of inflammation (f=26), as well as an undefined optical increase in circumference (f=9). Physical (f=24), pharmacological (f=14) and complementary interventions (f=16) with partly unclear evidence are mentioned as decongestant measures.

Conclusion: Identifying knee swelling and applying appropriate decongestant measures challenges lay people. Due to the deficits found, the chosen research method considering a continuous participation of lay people has the potential to further dev
Vámos Ágnes (1952-2020), az iskolateremtő
Authors: Kovács Judit , Trentinné Benkő Éva
Published: January 2023

Prof. Dr. Vámos Ágnes a neveléstudomány műhelyteremtő, mértékadó egyénisége volt. Széleslátókörű, innovatív gondolkodó, nemzedékek tudását formáló oktató. Szakmaisága, elhivatottsága kutatóként, oktatóként, tudományszervezőként, vezetőként is irányadó kollégái és tanítványai számára. Jelen írásunkban iskolateremtő munkájának négy kiemelt területét mutatjuk be (kéttannyelvű oktatás, kvalitatív kutatásmódszertan, felsőoktatáskutatás, akciókutatás).
Principal’s Teacher Reward Strategies on Teacher Performance in Public Secondary Schools in Mumias East Sub-County, Kenya
Authors: Sakwa Suleiman Eshikumo , Mugwe Mary Chui , Macharia Susan
Published: January 2023

This study unearths how school principals’ teacher reward strategies influence teacher performance in public secondary schools in Mumias East, following variations in teacher performances. That was accruing to the fact that there was global deterioration in teacher performance, and so was the case with Mumias East Sub-County, Kenya. The study applied a mixed methodology study design that utilized numerical measures and in-depth explorations in data collection. The measures of central tendency, comprising averages, percentiles, and Measures of dispersion comprising standard deviation were used. Also, a correlational approach, specifically, linear regression analysis was used. The study established that various reward strategies used by the principals yielded varied teacher performances. For instance, the correlations yielded were adjusted R2= 0.840032, at F=1.68E-91, p=2.5E-195, and t=106.0108 against teacher lesson attendance and recovery, adjusted R2= 0.954852, at F=7.4E-154, p=4.61E-95 and t=35.68653 with students Mean scores, and adjusted R2= 0.749565, at F=2.09E-69, p=2.3E-173, and t=84.36494, with TPAD scores. Also, from the measures of central tendency, it was concluded that the principals' reward system was crucial in determining the teacher’s performance; hence, a proper blend of the various rewards was urgent to realize optimum teacher performance. Earlier studies featured in the introduction had also made critical advancements in the various rewards and how they would impact teacher performance. Therefore, the findings of this study help solidify the earlier findings and offer a comprehensive teacher reward system that can be utilized specifically by school principals.