bluuebunny/crossref_metadata_2025 huggingface dataset:
“É como se tudo se passasse na terra-de-ninguém de um tempo fora do tempo”: a música em três curtas-metragens de João César Monteiro
Authors: Pinto José
Published: December 2024

As palavras de Fernando Cabral Martins (2005) que servem de mote ao título deste artigo são relativas à curta-metragem Os dois soldados, realizada por João César Monteiro e estreada na RTP 2 em 1979. No entanto, referem um fenómeno que também se constata nas outras duas curtas da mesma “série”: A mãe (1978-1979) e O amor das três romãs (1979). São três filmes em que a indeterminação espaciotemporal é um elemento central da narrativa, enfatizando a sua dimensão fantasiosa. Nesse sentido, o objetivo desta investigação é compreender como a música interage com os restantes elementos fílmicos de forma a “indeterminar” o espaço-tempo de ação dessas três curtas-metragens. A partir de uma análise audiovisual e considerando a interação da música pré-existente com a imagem, a diegese e os restantes elementos, propomos uma nova forma de interpretar esses três filmes, tendo em consideração as suas componentes musicais e toda a complexidade que impõem ao objeto fílmico. A partir deste trabalho de investigação, foi possível atestar que a música nas três curtas em questão constitui um elemento de dispersão temporal e espacial.
Os Prelúdios para violão de Villa-Lobos: aportes para uma visão em análise dos paradigmas
Authors: Priori-dos-Santos Caio
Published: December 2024

Este ensaio faz parte de um experimento conduzido no doutorado, com o intuito de aplicar diferentes métodos de análise musical a contextos variados, visando combiná-los para obter resultados indicativos. A análise recai sobre Heitor Villa-Lobos, um dos maiores compositores brasileiros do século XX, cuja produção musical, especialmente as obras para violão, tem destaque internacional. O estudo foca os 5 Prelúdios para violão, com uma análise dos paradigmas rítmicos e harmônicos presentes nos 10 primeiros compassos do Prelúdio nº 4. A proposta é explorar como metodologias analíticas menos utilizadas, como as de LaRue (1989, 1992, 2001, 2011) e Ruwet (1987), podem oferecer novas perspectivas à vasta produção acadêmica sobre Villa-Lobos, resultantes de estudos semióticos da linguagem. A aplicação dessas metodologias, até então pouco usadas neste repertório, sugere novas possibilidades interpretativas. Este estudo, ao abordar a análise estilística e paradigmática, não busca esgotar o tema, mas sim abrir caminhos para investigações futuras, reconhecendo que a obra de Villa-Lobos ainda pode ser examinada sob diferentes prismas analíticos. A reflexão aqui apresentada é, por vezes, subjetiva, com o intuito de sugerir novas visões e interpretações sobre os Prelúdios.
ANALYSIS OF EXISTING OBJECT DETECTION MODELS FOR UAV DETECTION ON THERMAL IMAGERY
Authors: Tanchuk Vladyslav , Kolobrodov Valentin
Published: December 2024

Nowadays, unmanned aerial vehicles (UAVs) are becoming widely used. They have proven their effectiveness, reliability, and feasibility. However, improper use or abuse of this technology can lead to significant human rights violations and threaten public safety. In connection with this, appropriate methods of countering UAVs should be made. One of the areas that is actively developing nowadays is the detection of UAVs based on optoelectronic radiation. Since most of such systems are designed for the visible range, the IR range has not been so widely investigated. UAV detection based on thermal imaging can be performed using artificial intelligence. Currently, there are ready-made approaches and models that perform object detection tasks, but they are more general purpose.
To review the problem of UAV detection based on thermal imaging and AI, it is necessary to analyze the most effective object detection models for the problem of UAV detection in the IR range. In this work, an analysis and comparison of such object detection models as YOLOv5 and YOLOv8, Faster RCNN, DETR was carried out.
Datasets were used for model training, both in the IR range and in the visible range. Preliminary digital processing of the dataset of UAV images in the visible range was carried out to convert them into pseudo-thermal images. This was done in order to increase the amount of training data for the models and thereby improve their accuracy.
The results showed that models such as YOLOv8 and DETR are the most effective for UAV detection tasks in thermal imaging, but their accuracy is still insufficient to be effectively used for real-time UAV defense systems.
ANALYSIS OF THE STRUCTURE OF INTERFERENCE COATINGS FOR THE OPTIMIZATION OF THE PARAMETERS OF NARROWBAND OPTICAL FILTERS
Authors: Voronko Andriy , Novikov Denys , Verbitskiy Dmytro , Voloshyn Oleksandr , Belkevych Oleksii
Published: December 2024

To monitor the parameters of semiconductor layers deposited from solid solutions of A3B5 compounds during the epitaxy, optical control methods are used. The choice of optical monitoring methods is determined by the reactor design, which requires non-contact, fast, and precise measuring of wafer surface parameters.
During the growth of epitaxial layers, the deposition of semiconductor compounds causes changes in the optical parameters of the wafer surface. To ensure precise measurements, it is essential to monitor these parameters within a narrow spectral range. In electro-optical monitoring systems, narrowband interference filters are used to select the desired spectrum. However, this type of filters is sensitive to several factors, such as environmental conditions, aging of the coating, and the angle of incidence. As a result, the manufacturing of narrowband optical filters with stable and precisely controlled optical characteristics presents a complex challenge.
This article analyzes the impact of various factors on the optical characteristics of interference coatings. Quantitative analysis of these shows that shift of the selected spectral band with central wavelength λmax can approach or even exceed the full width at half maximum (FWHM). These changes in the optical characteristics of narrowband filters lead to a decrease in the accuracy required for optical monitoring during epitaxial processes, which leads to inaccuracies in measurements.
The results of this analysis will guide the optimization of thin-film structures used in narrowband optical filters. The study of the shift in the selected band also enables, within certain limits, controlled changes to λmax or the compensation of its shift its shift during regular factor variations. Ultimately, it enables to take these changes into account when designing electro-optical systems for monitoring the epitaxial growth of semiconductor heterostructures, which increases the accuracy and stability of optical measurements in the required accuracy range.
DRIFT MOBILITY OF ELECTRONS IN INDIUM ANTIMONIDE IN THE WEAK ELECTRIC FIELD REGIME
Authors: Saurova Tatiana , Shpichenko Vladyslav
Published: December 2024

In scientific publications, theoretical and experimental studies of the Hall mobility of indium antimonide are presented; its dependence on temperature, charge carrier concentration, and electric field strength. Note that a typical form of the weak-field temperature dependence of the electron drift mobility, showing its behavior in a wide range of temperature and impurity atom concentration, is not presented. The processes of charge carrier scattering in indium antimonide are poorly represented.
The aim of this work is a detailed study of the main mechanisms of electron scattering in indium antimonide, the temperature dependence of the weak-field electron mobility in a wide range of the semiconductor doping degree.
A quantitative assessment of the electron scattering rates in indium antimonide is given for the main types of impurity and phonon mechanisms. A detailed analysis of the scattering processes is carried out. It is emphasized that a difference in the scattering rates in the Г- and L-valleys of the conduction band is observed. Scattering by ionized impurity atoms determines the resulting scattering velocity up to 40 K. At temperatures above 40 K, the role of polar optical scattering in the Г-valley increases significantly, practically determining the behavior of the resulting velocity. In the L-valleys, the greatest contribution is made by 2 types of phonon scattering: acoustic and polar optical.
Based on the obtained scattering process modeling results, the temperature dependence of the weak-field drift mobility in the Г- and L-valleys was calculated. From the simulation results it is clear that the mobility of electrons in the Г-valley exceeds the corresponding values in the L-valleys by 2 – 4 orders of magnitude. The resulting mobility is determined taking into account the valley population. From the results of modeling the drift mobility it is clear that the area of its increase is determined by the processes of scattering by impurity ions. The higher the doping degree of the semiconductor, the lower the electron mobility. With a further increase in temperature, the mobility decreases. A characteristic feature of the typical temperature dependence of the weak-field electron mobility in InSb is that at high temperatures its behavior is determined by scattering processes on polar optical phonons.
A set of modeling parameters has been determined that ensure compliance with experimental data.
COMPUTERIZED MONITORING SYSTEM FOR PARAMETERS OF ELECTRON BEAM PROCESSING OF OPTICAL COMPONENTS IN COMPUTER SYSTEMS
Authors: Matsepa Serhii , Antonenko Serhii
Published: December 2024

The developed computerized monitoring system for the parameters of electron beam processing of optical components represents a cutting-edge solution for ensuring precise real-time control of technological parameters. The system is based on a microprocessor control unit that integrates all components through a CAN bus and a high-voltage optical interface. The primary functions of the system include monitoring the voltage on the cathode and modulator, filament current, and electron beam parameters, as well as adjusting these parameters during the processing. Thanks to adaptive regulation, the system achieves stability in electron beam processing parameters, as evidenced by low voltage deviations (up to ±2%) and uniformity in thin-film coatings (up to ±5%).
The use of the high-voltage optical interface minimizes signal loss and enhances data transmission accuracy. The system easily integrates with computer systems via a USB interface, providing the ability to connect additional sensors to expand its functionality.
The results of the system's testing, conducted on the UVN-71 electron beam processing unit, demonstrated significant advantages. It reduces surface defects, improves processing uniformity, and minimizes optical material losses. This solution is critically important for the production of high-quality optical components used in modern computer systems, ensuring compliance with the strictest quality standards.
Thus, the developed computerized monitoring system facilitates the optimization of electron beam processes, enhancing productivity and product quality while unlocking new opportunities for the optical components industry.
ASSESSMENT OF GAS PARAMETERS UNCERTAINTY IN A DAMAGED GAS PIPELINE BASED ON A STEADY-STATE GAS FLOW MODEL
Authors: Matiko Fedir , Dzhyhyrei Viktor , Kostyk Ihor
Published: December 2024

Detecting gas leaks due to damage to gas pipelines and determining the volume of natural gas losses is important for reducing the imbalance in gas pipeline systems and increasing their reliability. The volume of lost gas can be determined based on the pressure and temperature of the gas at the location of the damage and the geometric characteristics of the damage. Since the gas parameters at the place of damage to the gas pipeline may differ significantly from the measured values ​​of the gas parameters at the nodal points, they should be determined based on mathematical models of gas movement. While determining the volume of lost gas, it is also essential to estimate the uncertainty of this volume, which requires also estimating the uncertainty of the pressure and temperature of the gas at the point of damage.
This article is devoted to developing analytical equations for assessing the uncertainty of gas pressure and temperature at the damage point, obtained using a mathematical model of steady-state gas flow. The methodology for evaluating the uncertainty of gas pressure and temperature at the pipeline damage point is considered, taking into account various factors such as pressure, temperature, flow rate, gas composition, and the geometric characteristics of the pipeline. The research relies on standardized procedures and methods for uncertainty analysis presented in JCGM 100:2008 and ISO 5168:2013. As a result of the study, equations for the relative standard uncertainty of pressure and temperature of natural gas at the damage point were derived, and the influence coefficients of the uncertainty components were found, enabling the assessment of these parameters' uncertainty while considering the uncertainties of the pipeline's geometric characteristics and the flow gas-dynamic parameters.
Examples of calculating the relative standard uncertainty of pressure and temperature of the gas at the damage point are provided for the case of a complete pipeline rupture. The obtained equations for the uncertainty of pressure and temperature of gas at the damage point will serve as the basis for the methodology for estimating the uncertainty of the volume of gas lost due to damage.
Fundamentals of the use of nanostructured materials to provide electromagnetic compatibility of electronic devices
Authors: Machulyanskiy A.V. , Pilinskiy V.V. , Telichkina O.V. , Shvaychenko V.B. , Rodionova M.V.
Published: December 2024

The processes of screening of electric, magnetic and electromagnetic fields in the frequency range from few-tens kHz to few-tens GHz are considered. The features of screens made of metal with high conductivity and of ferromagnetic materials are shown. The requirements to the nanostructure composite materials for electromagnetic screening are pointed out. Methods for the screens implementation on the basis of reflecting or absorbing broadband nanocomposite structures are identified.
Oxide electronics as one of the directions transparent electronics
Authors: Semikina T.V. , Komashchenko V.N. , Shmyreva L.N.
Published: December 2024

In this review we cover the main tendencies in the development of the transparent electronics. The special attention is devoted to the transparent conductive oxide materials that are used for liquid crystal displays, organic light emitted diodes and displays, solar cells and thin-films transistors. We also present our original results for zinc oxide thin films electrical characteristics.
Converting Incoherent Signals in autophase O-type microwave devices
Authors: Belyavskiy Ye.D. , Shynkaruk V.V.
Published: December 2024

The scheme of realization two–frequency transformation in autophase HF–devices and ratios for their calculation is proposed
Estimation of signal changes using differential energy operators
Authors: Kuznyetsov N.M. , Zhuykov V.YA. , Kharchenko O.M.
Published: December 2024

The article deals with generalized class of discrete high order differential energy operators. The influence of changes in signal frequency, amplitude, steady component and harmonic structure on the operator value is investigated. The examples of different signal’s features estimation with the existing and generalized classes are shown
Linear placement of digital integrated circuit cells taking into account delay reserves in circuits
Authors: Arutyunyan A.H.
Published: December 2024

A method of linear placement of standard cells of digital integrated circuits (IC), based on the preliminary timing analysis of the circuit and definition of linear co-ordinates corresponding to bottom and top boundaries of signal delay in nets. Definition of preliminary linear coordinates of cells placement is made on the average value of distance from linear co-ordinates of the bottom boundaries of a signal delay of incidental nets to the corresponding cell. Reserves of time of corresponding nets considered as a weight. Final placement of cells is made by linear moving of cells co-ordinates before elimination of cells is overlappings
Application of plasma electronics and photonics to improve ecology of diesel engines
Authors: Chaplinskiy R.YU. , Volpyan O.D. , Kuzmychov A.I. , Leshchyshyn A.V. , Veremeychenko G.N.
Published: December 2024

Method of diesel exhaust neutralization with help of the plasma electronic devices is considered. Photonic systems are proposed to use for diagnostic and monitoring of automotive exhaust. Methods of CO neutralization in plasma chemical reactor with help of the surface barrier dielectric discharge and monitoring of diesel exhaust smokiness with help of photonic device on the base of light emitting and photosensitive diodes were successful approbated
Approximate analytical nonlinear multipath theory autophase traveling wave tube with variable phase velocity
Authors: Saurova T.A.
Published: December 2024

The analytical nonlinear theory of the multiray auto-phase traveling-wave tube is developed. The stability analysis of the electron bunch trapping by the electromagnetic field under change of the breaking system speed is executed. A ratio of the equivalent field and the magnitude of the traveling wave analytical vs. width of the trapped electron bunch is derived
Study of the influence of the magnetosensitive complex and heterogeneous electromagnetic field on the nonlinear dynamics of tumor growth and survival of animals with Geren's carcinoma
Authors: Orel V.E. , Loshitskiy P.P. , Kuratov YU.A. , Nikolov M.O. , Dzyatkovska I.I. , Romanov A.V. , Melnyk YU.H. , Dyatkovskaya N.M.
Published: December 2024

Intravenous introduction of mechanochemically synthesized magnetosensitive complex on the basis of nanoparticles of Fe3O4, KCl and antitumor drug - doxorubicin and next irradiation by local spatially inhomogeneous electromagnetic field and mild hyperthermia of Guerin carcinoma increased on 56% survival of animals as compared to experiments when treatment by conventional doxorubicin only
The law of conservation of the genetic code of the auditory analyzer and mathematical statistics in hearing diagnostics
Authors: Nayda S.A.
Published: December 2024

The formulas got an author for the parameters of norm of middle and internal ear allow to define the state of norm and place of losses of hearing is differentiated by as multifrequency and one frequency measuring of impedance, otoscopy, registration of acoustic reflex, measuring of reflectivity sound from an ear-drum. There is a place the methods of mathematical statistics for explanation of results of subjective diagnostics at treatment of different diseases
Application of the cross-cutting problem method to research amplitude-frequency dependences of characteristics acoustic field of the receiving cylindrical piezoceramic transducer with split electrodes
Authors: Korzhyk A.V.
Published: December 2024

In a boundaries of hydro - electroelastics tasks the AFCh for acoustic field of piezoelectric cylindrical transducer - reciver with disconnect electrodes are calculated and described. The solution are obtained for symmetrical electrical conditions. The modes structure and modes AFCh and FFCh of acoustic field is detected and described
Parallelization techniques in the tasks of transaction processing and for CAD of telecommunication networks
Authors: Kot T. , Globa L. , Luntovskyy A. , Gueter D.
Published: December 2024

Advanced parallelization and multi-threading techniques are discussed, and the developed one is described. The case study shows deployment of the techniques and the obtained gains in the area of high-complexity simulation algorithms in CAD of telecommunication networks
Creation technologies and properties of synthetic analogues biogenic nanomagnetite
Authors: Dudchenko N.O. , Brik O.B. , Ponomarenko O.M. , Ivanitsky V.P. , Mzokov E.G.
Published: December 2024

Nanomagnetite sample, synthesized by the method of hydrothermal ferrous iron precipitation in the presence of weak oxidant, was analysed by the methods of transmission electron microscopy, nuclear gamma-resonance spectroscopy, magnetometry and magnetic resonance spectroscopy. It was shown, that synthesized nanomagnetite sample reveals room-temperature multiresonance adsorption in a wide range of quasi-constant magnetic field. It was supposed, that the character of observed phenomena is depend on the oscillation of magnetic moment of magnetite nanoparticles. It was found, that the characteristics of synthesized nanomagnetite are corresponding to the characteristics of biogenic magnetites
Software tools for improving medical x-rays images
Authors: Miroshnichenko A.S. , Miroshnichenko S.I.
Published: December 2024

In this work the analysis of algorithms of digital mammograms improvement representations for the automated search of pathologies and perception by operator is given. Conclusions, that in first case a tendency is noticeable to smoothing of middle brightness of image, and in the second is an increase of visual contrast and expansion of dynamic range, are done
Automatic construction and correction of multi-raster radiographic image
Authors: Molyukov V.A. , Borisov A.V. , Romanov V.V. , Khitrik Ye.V.
Published: December 2024

Тhe multiraster X-ray image system and method of automatic construction and correction of multibitmapped X-ray image is considered. The hardware and software factors influencing the quality of radiograph in whole are analyzed; error elimination measures are offered. Тhe program is developed in the environment of Matlab, allowing to conduct docking of rasters without the loss of valuable information.
Method of diagnosis of mechatronic systems
Authors: Blahitko B.Ya. , Bryhilevych V.I. , Rabik V.H.
Published: December 2024

The paper proposes a unified methodology for fault diagnosis of mechatronic systems. System models including electronic, mechanical and coupling subparts are developed. A diagnosis algorithm originally introduced for electronic circuits, is extended to mechatronic systems. Differences of the application are also pointed out: large spread in time constants, different levels of measurement noise in different subparts. The robot arm is tested to confirm effectiveness of the method
Analysis of Vth hopping power consumption method
Authors: Melikyan H.V. , Melikyan V.Sh. , Petrosyan Kh.P.
Published: December 2024

An energy saving model for VTH hopping scheme was proposed. The appropriate energy saving equations were calculated. Based on that model the VTH hopping problem was defined and heuristic algorithm was used for that problem resolving. Nearly 30% static power saving was achieved using this method, while the area overhead is less than 3%.
Ultrasonic air level gauge for liquid and solids for very dusty conditions
Authors: Nayda S.A. , Mikhaylova YU.K. , Spasichenko S.V.
Published: December 2024

The features of piezoelectric transformers with multi-layered matching coverages which works on an air environment are considered. As a result of a multi-layered construction application a possibility to determin the levels up to 61 mcode is provided, and the amplitude of the swaying speed on the transformer working surface gets such a value that the surface selfwiping becomes possible
On the influence of multiple wave scattering for arc and circular receiving acoustic curvilinear antennas with elastic screen
Authors: Kandrachuk I.V.
Published: December 2024

The analysis of influence of frequent dispersion of waves in the curvilinear systems, consisting of transducers and acoustic baffle, on descriptions of transducers directions, is provided
Sound field of a system of two cylindrical piezoceramic emitters
Authors: Didusenko Yu.A. , Leiko A.G.
Published: December 2024

The problem of sound emission by system of two cylindrical piezoelectric ceramic converters consisting of infinitely thin covers is solved. The partial spheres method applied to equivalent electromechanical schemes of the piezoelectric ceramic converters was used. The results of calculations are presented and analyzed.
Comparative analysis of clustering algorithms
Authors: Didkovskaya M.V. , Gogolev A.Yu.
Published: December 2024

The mathematical formulation of the problem of goods’ categorization is represented, the following stages of its decision are pointed out: indexing, classification and evaluation. Experimental study of classifiers (naive Bayes classifier, SVM method and decision tree) has shown that SVM method is the most effective to solve the problem of categorization.
Comparative analysis of the definition of noise characteristics traffic flows
Authors: Didkovskiy V.S. , Zayets V.P. , Samiylenko N.O.
Published: December 2024

In this paper up-date design procedures for noise characteristics of transport streams are described, some comparative calculations for typical analysed models are given
Expanding the semantic markup of wiki encyclopedias for transformation of protected content into learning objects for individual educational trajectories
Authors: Rogushina Julia , Gladun Anatoly , Pryima Serhii , Anishchenko Olena , Mykytiuk Artem
Published: December 2024

Modern online encyclopedic resources provide actualization and integration of domain terminology, unambiguous definitions of its basic concepts and the semantics of relations between them agreed by experts. The use of encyclopedic content in the educational process allows to update the terminology of learning courses, correctly define connections with other disciplines and concepts, agree on definitions, etc. This content has to be protected from unauthorized changes, but as a result, third-party users do not have access to the elements of semantic structuring of such resources. Therefore, it is necessary to find a compromise between the resource code openness and the security of the encyclopedias content in order to expand their functionality and allow to obtain from them information pertinent for certain practical tasks. For this purpose, we propose to select clearly those elements of semantic markup that are necessary for search and further processing of the content of a certain type, to add these markup elements to pages of corresponding encyclopedic articles and formally define their values. We propose to expand the existing set of semantic properties, but display for users only a certain subset of the names and values of these properties. In this work, we consider this problem on example of metadata building for learning objects based on the transformation of the protected content of encyclopedic articles aimed at their use for the generation of individual educational trajectories. We have to define some minimal set of metadata that is sufficient for problem solving. For this purpose, we analyze the most common standards of metadata representation for learning objects and other important elements of the educational process. Based on this analysis, a set of properties of learning objects that can be obtained from the pertinent encyclopedia article (automatically, semi-automatically or with the help of domain experts) is selected.
Problem formulation and synthesis of statistical algorithms for recognising Web resources and their vulnerabilities by signatures of statistical and fuzzy linguistic features in cyberintelligence complexes
Authors: Iliashov Oleksandr , Sholokhov Serhii , Khakhliuk Oleksii , Ryzhuk Pavlo
Published: December 2024

This study addresses the challenge of automating vulnerability recognition in web resources using statistical and fuzzy linguistic features. It presents a formalized approach for the fuzzy recognition of web resource vulnerabilities based on complex reference descriptions defined by signature intervals of statistical and fuzzy feature values. The research introduces algorithms for both single- and multi-alternative recognition of web resources, utilizing decision-making methods such as the minimax rule, Bayesian risk, maximum a posteriori probability, and maximum likelihood. The primary objective is to enhance the accuracy of vulnerability detection in web resources, especially under conditions of limited training data and fuzzy feature descriptions. The proposed algorithms aim to minimize decision errors and effectively classify vulnerabilities despite uncertain prior probabilities. This is particularly relevant in cybersecurity, where accurate threat detection and classification are critical. The research also highlights the practical value of these algorithms in improving the efficiency of cyber intelligence systems (CIs) for detecting security breaches and classifying web resource vulnerabilities. The proposed algorithms are designed to adapt to the complex and uncertain nature of web resource security, enabling better analysis of attack scenarios and the development of targeted protection strategies. In addition, the study identifies several challenges, including the complexity of formalizing reference descriptions for fuzzy features and the difficulties in applying traditional statistical recognition methods to web resources with fuzzy linguistic variables. The paper suggests future research directions, including developing new methodologies for processing large volumes of data and integrating these algorithms into modern cybersecurity systems. Overall, this research contributes to the field of cyber intelligence by offering novel solutions for automating the detection of web resource vulnerabilities, thus enhancing the security of online systems.
Quantitative assessment of the probability of protective system functioning without unlawful actions
Authors: Akhramovych Volodymyr , Akhramovych Vadym
Published: December 2024

Information security, also known as InfoSec, is the practice of preventing unauthorized access, use, disclosure, disruption, modification, or destruction of information. The primary goal of information security is to achieve a balanced protection of data confidentiality, integrity, and availability, while considering the expediency of application and without any harm to the organization's productivity. In this paper, the security levels (threats) T of the k-th threat to the properties of information circulating in the information and telecommunications system (ITS) are obtained from the parameters: c – assessment of the impact of the k-th threat on the confidentiality of information, i, a and s – assessments of the impact of the k-th threat on the integrity, availability, and observations of information, respectively. The weight coefficient p determines the share of the occurrence of this threat relative to the entire set of threats and can be calculated based on the analysis of ITS operation statistics or using known forecasting methods. The probability of no unauthorized access to information during the operation of the protection system has been quantitatively assessed. The assessment is based on the parameters: a – the intensity of the protection system's suppression of attempts to illegally access information, b – the intensity of such attempts at the input to the protection system, t – the number of days of the system's operation. For graphical interpretation of the dependencies, graphical materials are presented. For this purpose, modeling was performed in the MatLab system. The graphical materials clearly indicate the possibility of obtaining a state of operation of the protection system without unauthorized actions depending on the influence of threats to confidentiality, integrity, availability of information, and unauthorized access to information depending on the parameters of the intensity of suppression by the protection system of attempts to illegally access information, and the intensity of such attempts at the input to the protection system. This will, unlike analogues, allow developers of information systems and service personnel to have quantitative indicators of the probability of no unauthorized access to information and to make decisions regarding possible vulnerabilities.
Educational priorities of training of cyber security specialists under the conditions of the state of martial state in the state
Authors: Horlynskyi Viktor , Horlynskyi Borys
Published: December 2024

Ensuring the cyber security of the state in the conditions of a full-scale invasion of the Russian Federation, the spread of hostilities in the national cyberspace, require a review and clarification of educational priorities in the training of specialists in the field of cyber security. These are the priorities: the focus of training on mastering the values that form the mental national-patriotic prerequisites for the proper performance of professional and military duty, personal responsibility for ensuring cyber security; orientation towards the preventive training of specialists who are able to actively act and perform professional tasks in dangerous conditions of martial law and increased risk, to competently warn and counteract dangers, to maintain moral and psychological stability in dangerous conditions of wartime; targeting the mastering of special, military and security norms by the acquirers, consistent with the standards adopted in the EU and NATO member countries; focus on the assimilation of special, military and security norms by the purchasers, which correspond to the standards adopted in the EU and NATO member states; direction to the comprehensive development of digital skills of interaction in the digital space and maintaining one's own cyber security, mastering digital tools for the organization of activities, in particular, artificial intelligence in the interests of educational, scientific, professional and managerial activities in the field of ensuring cyber security. On the basis of the outlined educational priorities, a list of security and professional abilities is proposed, on the formation of which it is advisable to direct the training of specialists in the field of cyber security.
Method of determining the maximum flight range of a UAV using the FPV mode and using the centimeter frequency range of radio-link in laboratory conditions
Authors: Salii Oleksandr , Hol Vladyslav
Published: December 2024

At the current stage of production of various unmanned aerial vehicles (UAVs) in the flight mode “first person view” (FPV), there are no individual passports with information on the maximum possible flight range for individual UAV-FPV kits and ground control stations (GSC) application of a suitable model of a digital video camera (including a thermal imaging camera) and the use of a radio line of communication in the centimeter frequency range. Therefore, the main goal of the article is the selection and development of methods for measuring the main parameters of the receiver-transmitter of UAVs and GSC in laboratory conditions in the combat zone, using the developed “simulator of the radio communication line of data transmission”; with further calculation, on the basis of relevant international standards, of the maximum possible flight range and drawing up the corresponding “flight map”. The main results of the article are: the method of determining the maximum possible flight range of UAVs in FPV mode in laboratory conditions for the frequency range of  GHz has been developed, which is based on a set of developed experimental and empirical measurement methods and theoretical calculation methods, according to the recommendations of the ITU (International Telecommunication Union). The materials of the article are of practical value for the planning and organization of the flight mission of multi-rotor UAVs of the tactical level for a given distance, as well as for the activities of the UAV routine maintenance units of the Unmanned Systems Forces of the Armed Forces of Ukraine upon the fact that UAVs return from flight missions in order to check their technical parameters.
Heterosis and combining ability among promising single-cross hybrids in Lilium formolongi Hort. for major growth and flowering traits
Authors: Rai Rameshwar , Kim Jong-Hwa
Published: December 2024

An investigation was conducted to determine the combined ability and gene action of four diverse single-cross F1s for significant growth and flowering traits. The performance of all 16 genotypes (4 parent SCF1s, 6 DCF1s, and 6 reciprocal DCF1s) was evaluated by maintaining three replications in a randomized complete block design. This significant genetic variability is a key point of interest, as it paves the way for further exploration and understanding of the inheritance of these traits. Highly significant general (GCA) and specific (SCA) combing ability for all evaluated quantitative traits indicated the vital role of additive and non-additive components in the inheritance of the studied traits. The GCA/SCA was more than unity (1), indicating the more significant role of additive than non-additive effects for all the evaluated quantitative traits. Furthermore, almost all studied quantitative traits besides leaf length were highly significant for sources of variation, indicating reciprocal effects on studied characters. Parent 1, 45.1 (AF × Ad), was found to be a good combiner for plant height, stem diameter, number of leaves, leaf length, leaf width, number of flowers, and attitude of the floral axis. Among the six DCF1s, cross (2 × 4), 68.3 (H × W) × (WT × AugE)-9, demonstrated superior performance, representing significant SCA effects in a positive direction for the plant height, stem diameter, leaf length, leaf width, number of flowers, bud length, and attitude of the floral axis. Among the six reciprocal DCF1s, cross (4 × 2) (WT × AugE)-9 × 68.3 (H × W) demonstrated superior reciprocal effects exhibiting significant SCA effects in the positive direction for stem diameter, leaf width, number of flowers, days to flowering, bud length, and attitude of the floral axis. Since the reciprocal effect was found to be significant for plant height, number of leaves, number of flowers, bud length, and attitude of the floral axis for cross (2 × 3), 68.3 (H × W) × (J × G)-6, its reciprocal cross (3 × 2) (J × G)-6 × 68.3 (H × W) could be selected for the mother line.
Pain catastrophizing is associated with high-dose opioids in patients with cancer pain
Authors: van Rysewyk Simon , Lovell Melanie , Glare Paul
Published: December 2024

This study aimed to determine the prevalence of unhelpful pain cognitions, such as catastrophizing and low self-efficacy, and the relationships between pain qualities (severity, interference, distress, and disability) and opioid use in patients with cancer. The study design included the linkage of collected self-report questionnaire responses sourced from the Electronic Persistent Pain Outcomes Collaboration (ePPOC) with medical records in cancer patients referred to a hospital-based pain clinic in Sydney, Australia, from January 2013 to June 2019. Of 267 patients with a history of cancer, 37 (13.8%) had pain attributable to cancer. The average pain intensity was moderate, but severe (≥7/10) in 12 (36%) patients. Unhelpful pain cognitions were common; average scores for pain self-efficacy and catastrophizing were moderate. At referral, most patients were on strong opioids, with many on high doses (>100 mg oral morphine equivalents (OME) per day). Despite higher doses of opioids, pain interference, depression, anxiety, self-efficacy, and catastrophizing scores were worse in patients with severe pain. Pain catastrophizing was significantly higher in the severe group. The correlation between opioid dose with catastrophizing and anxiety indicates that healthcare providers may have not assessed unhelpful pain cognitions, and opioids may have been used by patients to cope with psychological or spiritual distress rather than for analgesia.
TrackEx: A Comprehensive Expense Tracker with Stock Recommendations and Tax Management
Authors: Sreekumar Gokul , Chundaran Mridul , Eapen Shikha , S Sreyas , John Linnet
Published: December 2024

Since society nowadays is highly influenced by technology, controlling one’s personal finances has become one of the key concerns of people willing to enhance their financial state. It is possible to find many digital resources for recording expenses or calculating taxes and even investing. However, the majority of these solutions tend to work separately and as a result, are inefficient and prone to errors. Therefore, this paper proposes and designs a mobile application with many financial management features in one platform. The system proposed will have an expense tracker, an income tax calculator, a payment gateway system and investment advice system. The application also guides its users on how they should invest in relation to their financial data and spending behavior. In addition, an embedded payment system also helps to maintain expense classification and tracking through secure processing of payments made and expenses incurred. This approach identifies the limited focus of existing financial tools, hence seeks to offer an all rounded approach to personal finance management in order to enhance user satisfaction and foster deeper understanding of finances. The integrated system enables efficient management of all financial activities whilst giving the user enhanced control over their spending, tax strategies as well as investment options.
When are Models Useful? Revisiting Quantification of Reality Checking
Authors: Koutsoyiannis Demetris
Published: December 2024

The Nash–Sutcliffe efficiency remains the best metric of the appropriateness of a model, and reflects a culture developed in hydrology to test models against reality before using them. This metric is not without problems and alternative metrics have been proposed subsequently. Here the concept of knowable moments is exploited to provide robust metrics, that assess not only the second-order properties of the process of interest but also high-order moments which provide information for the entire distribution function of the process of interest. This information may be useful in hydrological tasks, as most hydrological processes are non-Gaussian. The proposed concepts are illustrated, also in analogy to existing ones, with a large-scale comparison of climatic model outputs for precipitation with reality for the last 84 years on hemispheric and continental scales.
Marketing Components and their Role on Fair Trade in Coffee Agriculture: A Scoping Review
Authors: Maradiaga-López Juan , Vega-Muñoz Alejandro , Salazar-Sepúlveda Guido , Contreras-Barraza and Nicolás
Published: December 2024

The aim of this study is to conduct a scoping review of the literature on the marketing environment and Fair Trade in the coffee industry, identifying its contribution to organizations and society. Quantitative studies were selected from databases such as Web of Science and Scopus, following a selection process aligned with the PRISMA methodological guidelines and establishing eligibility criteria for articles using the PICOS strategy. To understand the effects of macromarketing, strategic marketing, and operational marketing on the development of the Fair Trade coffee market, the results demonstrate that marketing plays a significant role in the market's growth. Specifically, marketing is crucial in communicating the value of Fair Trade, raising consumer awareness, and supporting the economic well-being of coffee producers. Ethical consumption and branding strategies are essential for positioning Fair Trade coffee in competitive markets. However, further studies are needed to corroborate these findings and provide more up-to-date perspectives.
Influence of Deformation Degree on the Evolution of Microstructure and Properties of Al-10.0Zn-2.7Mg-2.3Cu Alloy in Short-Flow Thermo-Mechanical Treatment
Authors: Li Hao , Zhao Yongxing , Huang Yuanchun , Liu Yu , Cheng Junhua
Published: December 2024

A simple short-flow thermo-mechanical treatment named L-ITMT (consisting of three steps: solution, warm deformation, and solution) were implemented in ultra-high strength Al-10.0Zn-2.7Mg-2.3Cu alloy to study the Deformation degree on the particle distribution, resolubility, microstructure evolution, recrystallization mechanism, formation and development of deformation bonds and mechanical property. Increasing the rolling deformation during the L-ITMT process can effectively break up the second phase at the grain boundary and promote its dissolution, which is beneficial to aging precipitation strengthening and improves the strength of the alloy. The dominant mechanism changes from recovery to recrystallization when the strain reaches 0.92. As the strain increases, the deformation band becomes flatter and eventually becomes nearly parallel to the RD direction, promoting the occurrence of geometric recrystallization or continuous recrystallization (CRX). Under high strain conditions, the formation mechanisms of recrystallized grains include discontinuous recrystallization (DRX), CRX and particle stimulated nucleation (PSN), but the main contributions to the formation of large-area fine-grained bands are CRX and PSN. The results showed that as the deformation degree increased from 10% to 80%, the improvement of solid solubility and grain refinement in the short-flow TMT process increased the ultimate tensile strength (701 MPa), yield strength (658 MPa), and elongation (11.3%) of the alloy by 15.7%, 10.8%, and 842%, respectively. This shows that the short-process L-ITMT process has a synergistic effect in significantly improving the plasticity and maintaining the strength of the ultra-high strength Al-Zn-Mg-Cu alloy.
Wild Emmer (Triticum turgidum ssp. dicoccoides) Diversity in Southern Turkey: Evaluation of SSR and Morphological Variations
Authors: Çakır Esra , Alsaleh Ahmad , Bektaş Harun , Özkan Hakan
Published: December 2024

Wild emmer wheat (Triticum turgidum ssp. dicoccoides) is the ancestral species of cultivated tetraploid wheat with BBAA genomes. Because of its full interfertility with domesticated emmer wheat, this wild species can serve as one of the most important genetic resources to improve durum as well as bread wheat. To clarify the magnitude of genetic diversity between and within populations of Turkish wild emmer wheat, 169 genotypes of ssp. dicoccoides selected from the 38 populations collected from the three sub-regions (East-1, West-1, and West-2) of the Southeast Anatolia Region of Turkey were molecularly and morphologically characterized. The populations showed significant variation in plant height, peduncle length, flag leaf length and area, length of the uppermost awn in the spikelet, length of the lowermost awn in the spikelet, width and height of the glume, length and width of the anther, and 1000 seeds weight. According to the results of nuclear-SSR analysis, the populations collected from the sub-regions East-1 and West-2 were genetically most distant (0.539), while the populations collected from the sub-regions West-1 and West-2 were genetically most similar (0.788) populations. According to the results of AMOVA, there was a 84 % within the populations studied, while the variation between the populations of the three sub-regions was 16 %. In the dendrogram obtained by using nuclear-SSR data, the populations formed two main groups. Populations from the sub-region East-1 were in the first group, and the populations from the sub-regions West-1 and West-2 were in the second group. From the dendrogram, it appears that the populations from the sub-region East-1 were genetically distant from the populations from the sub-regions West-1 and West-2. The results highlight the potential diversity in the Southeast Anatolia for wild emmer discovery and utilization.