bluuebunny/crossref_metadata_2025 huggingface dataset:
ТЕХНОЛОГІЯ СТВОРЕННЯ МЕТАОНТОЛОГІІ «РУЧНІ ІМПУЛЬСНІ ПРИСТРОЇ»
Authors: Воробьев Юрий Анатольевич , Нечипорук Николай Васильевич
Published: September 2023

The results of creation of metaontology "Manual pulse devices" are presented in the work. The main ideas and approaches for assessing the effectiveness of the process of acquiring knowledge are determined. Two types of tactics are described when creating metaontology "MPD". The aspects of formation of metaontology in accordance with IDEF5 requirements are considered. For the created metaontology "MPD", a descending structure was chosen. To objectify knowledge in the extraction process, a special procedure was used to filter the sequence of questions through special horizontal levels that corresponded to enlarged conceptual fragments of the concepts of the domain and provided the completeness of knowledge. The sequence of questions to the expert was constructed according to the scheme "from the general to the particular". With the right answers, the extraction of knowledge was terminated by the condition of achieving a lower level of ontology (undetermined concepts), if all the horizontal stages were also passed. If, however, an unsatisfactory answer was received from the expert in the course of the dialogue on a question that was correlated with the upper level of the ontology, then a transition was made at the appropriate horizontal level and the expert was asked the same type of attitude; if an unsatisfactory answer was received at one of the lower levels, then the transition was made to the upper level and the expert was asked a question related to the subsequent higher-level concept. If the process of extracting knowledge ended up with an "incidental" concept of the top-level ontology, this indicated the need to identify and involve additional experts in the knowledge discovery process. To verify the knowledge quality control processes, an approach to knowledge extraction was used, based on the objectification of the expert's assessment by automating the process of forming a set of questions and the procedure for its implementation, while complying with the completeness condition. At the same time, the simultaneous fulfillment of the conditions of completeness of coverage of the subject area and minimization of information redundancy was observed due to the construction of the mapping of metaontology into a formalized scheme of problem-oriented representation of the domain. As a result of the implementation of the structural-ontological approach, the process of extracting knowledge was optimized, and, thus, the overall effectiveness of creating metaontology was improved. With the support (development) of the metaontology "MPD", the automated application of knowledge was implemented, presented as a generalized algorithm for realizing this process. Metaontology "MPD" is presented in detail.
ДО ОПТИМАЛЬНОГО ПРОЕКТУВАННЯ ОСЬОВОГО БАГАТОСТУПІНЧАСТОГО КОМПРЕСОРА
Authors: Герасименко Владимир Петрович , Шелковский Михаил Юрьевич
Published: September 2023

The work is devoted to the development of an integrated approach to the aerodynamic improvement of the blade vanes of multistage axial compressors of gas turbine engines. One of the features of the studies carried out to optimize the blade vanes was to take into account the mixing effects by various sources of losses. Thus, minimization of losses sources in compressor blade vanes during their profiling is achieved due to the account of the complex three-dimensional vortex nature of the flow and the use of modern software systems for solving the Navier-Stokes equations. Calculations of the three-dimensional viscous flow in the work are performed with ANSYS software. The profiling of the multi-stage compressor blades is carried out with “Kompress 2.0” software package, the feature of which is the use of parametric models of rotor and stator blade vanes, adapted for their aerodynamic optimization, as well as taking into account the radial unevenness of the incident flow when selecting the tangential blades shape of the stator vanes. As a result, a complex methodology for the optimal design of the blades of a multi-stage compressor with the use of "controlled" diffusivity, S-shaped profiles, lean, and chord variation is developed, with simultaneous variation of geometric parameters according to special plans and the use of the compressor efficiency as an integral efficiency criterion, “Kompress 2.0” for the blades profiling, ANSYS for the calculation of threedimensional viscous flow. Multi-stage axial compressors have been designed, numerically and experimentally investigated. Based on the results of experimental studies of multistage axial compressors, new generalizing relationships are established, that establish a relationship between the geometric parameters of the profiles and their gas dynamic characteristics to take into account the features of the spatial shape of the flow at the stage when solving the inverse design problem. The results of the research were used in the design and improvement of the elements of the flow paths of the ZM multistage compressors. Test aerodynamic optimization of the blade systems of experimentally studied multistage compressors with the use of the proposed approaches made it possible to obtain the efficiency of high-pressure compressor stages at the level of 0.92 ... 0.93 and to increase the efficiency of multistage axial compressors by 1.0-2.4%. The efficiency of the 10-stage compressor is 0.8% (to the level of 0.853), the efficiency of the 6-stage compressor is 1.1% (to the level of 0.825), the efficiency of the 3-stage compressor is 2.4% (to the level of 0.885), and the efficiency of an 8-stage axial compressor is 1.6% (to the level of 0.879).
ПІДВИЩЕННЯ ЕФЕКТИВНОСТІ ОХОЛОДЖЕННЯ ПОВІТРЯ НА ВХОДІ ГТУ З УРАХУВАННЯМ КЛІМАТИЧНИХ ОСОБЛИВОСТЕЙ ЕКСПЛУАТАЦІЇ
Authors: Радченко Андрей Николаевич
Published: September 2023

Cooling the air at the inlet of gas turbine units by utilizing the exhaust gas waste heat in the combined absorption-ejector chiller with absorption lithium-bromide chiller as a gas turbine unit and refrigerant ejector chiller as a low temperature cooling stage has been analyzed for changeable climatic conditions. The climatic peculiarities of ambient air cooling processes consisting in time removing of maximal values of ambient air temperature and air cooler heat load have been investigated. Taking this into account the current heat loads on the two-stage gas turbine unit intake air cooler were analyzed in comparison with designed installed cooling capacity of absorption-ejector chiller, i.e. in comparison with designed heat load on the two-stage gas turbine unit intake air cooler. The lack and surplus of designed installed cooling capacity of absorption-ejector chiller was calculated. The reserves of increasing the fuel efficiency of gas turbine units by intake air deep cooling taking into account the mentioned above climatic peculiarities of air cooling processes were revealed. A combined absorption-ejector chiller with absorption lithium-bromide chiller as gas turbine unit intake air high temperature cooling stage and refrigerant ejector chiller with condenser cooled by absorption chiller as turbine intake air low temperature cooling stage has been proposed for turbine intake air deep cooling at maximal values of ambient air temperature and during decreased air cooler heat loads. So as the coefficient of performance of refrigerant ejector chiller is much lower compared with its value for absorption lithium-bromide chiller the efforts were aimed to increase the first one. Such a gas turbine unit intake air cooling system with combined absorption-ejector chiller provides increasing of its coefficient of performance due to refrigerant ejector chiller condenser cooling by absorption chiller and increasing of ejector chiller coefficient of performance as a result. The realization of gas turbine unit intake air deep cooling provides the maximal annual fuel saving for site climatic performance conditions.
СТРУКТУРА ТА ВЛАСТИВОСТІ ВІДЛИВОК КОРПУСНИХ ДЕТАЛЕЙ ТУРБІНИ ІЗ НІКЕЛЕВИХ СПЛАВІВ ПІСЛЯ ГАРЯЧОГО ІЗОСТАТИЧНОГО ПРЕСУВАННЯ
Authors: Лысенко Н. А. , Клочихин В. В. , Наумик В. В.
Published: September 2023

The influence of hot isostatic pressing (HIP) on the density, microstructure and physico-mechanical properties of castings of body parts of the turbine from heat-resistant Nickel alloys ВХ4Л-ВИ and ВЖЛ14-ВИ. Comprehensive studies have shown that the HIP provides the quality of castings by reducing shrinkage microporosity. Surgery of the hip, followed by heat treatment according to the standard mode enhances the mechanical and heat resistant properties. The analysis of obtained results allows to consider the possibility of combining the process of the HIP and high-temperature thermal processing followed by aging, which provides higher performance, lower energy consumption and significant cost savings compared to the individual processes of the HIP and heat treatment.
ВИЯВЛЕННЯ ТЕКСТУРНИХ ДІЛЯНОК НА ЗОБРАЖЕННЯХ ЗА НАЯВНОСТІ ЗАВАД ЗА ДОПОМОГОЮ КЛАСИФІКАТОРА НА ОСНОВІ НЕЙРОМЕРЕЖІ
Authors: Науменко А. В. , Кривенко С. С. , Зряхов М. С. , Лукин В. В.
Published: September 2023

The possibility of detecting texture areas of the image distorted by an additive uncorrelated noise has been analyzed with help of the classifier based on neural network learning. We investigated the following sets of input parameters (attributes): relative local variance, Harris detector, simple textures detector, detector based on discrete cosine transform. It is shown that detection performance depends on the number of input characters and on type of used input parameters. Issues of training the neural network and the application of a trained classifier for image processing with different textures are discussed.
ОЦІНЮВАННЯ БЕЗПЕКИ ІНФОРМАЦІЙНО-КЕРУЮЧИХ СИСТЕМ РОЗУМНИХ БУДИНКІВ З ВИКОРИСТАННЯМ ДЕРЕВ АНАЛІЗУ АТАК
Authors: Al-Sudani Mustafa Qahtan Abdulmunem , Ahmed Waleed Al-Khafaji , Kharchenko V. S.
Published: September 2023

The information and control system of smart building is considered as a set of subsystems including building automation system (BAS). BAS security and availability during its life cycle are assessed using the technique Attack Tree Analysis (ATA), and Failure Modes and Effects Analysis (FMECA). The FMECA is applied at the initial stage of analysis to assess criticality of BAS hardware/software failures and failed connections between components on the different levels of system design. Modification of FMECA is IMECA allowing to analyze modes and effects of attacks/intrusions. The ATA is applied to investigate any intrusions into the BAS by analyzing system probability of a failure caused by faults and vulnerabilities during operation time. The ATA is applied for different BAS subsystems and results of analysis are combined.
РАЗРАБОТКА МЕТОДА НЕЧЕТКОГО ОЦЕНИВАНИЯ РИСКОВ КИБЕРБЕЗОПАСНОСТИ ТРАНСПОРТНЫХ СРЕДСТВ
Authors: Брежнев Евгений Витальевич , Бородавка Владислав Вячеславович , Салахов Ренат Витальевич
Published: September 2023

Proposed cyber security risk assessment method for vehicles, which is based on the use of multi-level fuzzy output (Multi Fuzzy Inference System - MFIS), which allows to reduce the requirements to the completeness of statistical data characterizing the individual elements of the model (threats, risks, assets, etc.) and get fuzzy evaluation cyber security risks of vehicles, to predict the effects of the mutual influence of the system components, as well as to form a plurality of countermeasures aimed at increasing cyber security. The method is based on the model of threats and risks, taking into account the interaction between risk assets and countermeasures, as well as between the vehicle nodes and risk factors
МЕТОД ОПЕРАТИВНОГО КОНТРОЛЯ ДАННЫХ В СИСТЕМЕ ОСТАТОЧНЫХ КЛАССОВ, ОСНОВАННЫЙ НА ПРИНЦИПЕ ПОСЛЕДОВАТЕЛЬНОЙ НУЛЕВИЗАЦИИ
Authors: Краснобаев Виктор Анатольевич , Кошман Сергей Александрович , Янко Алина Сергеевна
Published: September 2023

The method for real-time data control within the system of residue classes (SRC), based on the consecutive nullification principle is considered. This method is implemented by applying a sequential procedure of nullification with next remainder of position-independent code structure. Main procedure of the method is the following: while it is selected nullification’s constant  for the number  for the residue’s value  for the base , in the calculating path of a computer system in SRC, which is functioning on the base , it can be formed the residue’s value  by which the next stage of nullification will be doing the next constant nullification’s constant . The results of assessment and comparative analysis of testing time in SRC are presented
ІНТЕРВАЛЬНИЙ МЕТОД ОЦІНЮВАННЯ ДОВІРИ ТА РЕПУТАЦІЇ В СОЦІАЛЬНІЙ МЕРЕЖІ
Authors: Вартанян Василій Михайлович , Туркіна Вікторія Валентинівна
Published: September 2023

The problem of trust and reputation systems in social networks estimation's are considered.  The interval representation models of the trust are used for the uncertainty accounting. The method of determining trust/reputation in social networks is implemented as a sequence of actions: definition of the trust to provider is based on their reputation, subscriber’s choice for interaction is made by criterion of maximum expected value of their utility function, then correction of the numerical estimation of trust and reputation of the selected subscriber is performed.
СТИСНЕННЯ ЗНАКІВ КВАНТОВАНИХ КОЕФІЦІЄНТІВ ДИСКРЕТНОГО КОСИНУСНОГО ПЕРЕТВОРЕННЯ ЗОБРАЖЕНЬ JPEG
Authors: Мирошниченко Александр Иванович , Пономаренко Николай Николаевич , Лукин Владимир Васильевич
Published: September 2023

Images compressed in accordance with the JPEG standard may be additionally lossless compressed to reduce the amount of data transmitted over the communication channels or to reduce the space occupied by such images on data storage devices. In this case, a JPEG image is partially decoded to obtain quantized coefficients of the discrete cosine transform (DCT) of image blocks. Then these coefficients are compressed by some more efficient method. Most of such methods are able to efficiently compress amplitudes of the DCT coefficients, while signs of the DCT coefficients are compressed weakly or even are not compressed. In this paper, we propose an effective method of compressing of signs of quantized DCT coefficients of JPEG images. The proposed method takes into account correlation between DCT coefficients inside of an image block as well as between DCT coefficients of neighboring blocks by forming the corresponding frequency models and by combining these models using logistic mixing. For a test set of real JPEG images formed by various digital cameras, it is shown that the proposed method allows to compress signs of DCT coefficients in 1,1 ... 1,3 times, significantly outperforming nearest analogues
МОДИФІКОВАНИЙ МЕТОД ОЦІНЮВАННЯ ВЗАЄМНОЇ ЗАТРИМКИ СИГНАЛІВ З ВИКОРИСТАННЯМ РОБАСТНОГО ДИСКРЕТНОГО ПЕРЕТВОРЕННЯ ФУР’Є
Authors: Олейник Вячеслав Алексеевич , Лукин Владимир Васильевич
Published: September 2023

Modified method for estimating delay and direction of arrival for random wideband signals received by two displaced sensors and corrupted by non-Gaussian noise is designed. The method and corresponding algorithms are based on robust discrete Fourier transform (RDFT) applied in both reception channels instead of standard discrete or fast Fourier transform. The reason for applying the RDFT is to remove impulsive noise component from data. For the proposed modifications, Hodges-Lehman estimate and one simple adaptive estimate are used as robust estimates to determine spectra in both reception channels and, then, to obtain robust estimate of cross-spectrum. After this, cross-correlation function is obtained as inverse DFT from cross-spectrum estimate. Efficiency comparison is carried out for the proposed modifications and approaches designed earlier based on non-adaptive robust estimates as median and alpha-trimmed forms of DFT as well as classic approach. It is assumed that informative process can be modelled as Gaussian process with cut-off frequency smaller than for additive noise. Processes with symmetric alpha-stable distributions are employed as models of non-Gaussian noise where parameter α that relates to tail heaviness is varied in rather wide limits to simulate possible practical situations of different impulsivity of non-Gaussian noise. Noise intensity is varied by changing the parameter γ of symmetric α-stable process. The main attention in accuracy analysis is paid to probability of abnormal estimates of delay which is desired to be minimized. It is shown that the proposed modifications provide better estimation of time delay and direction of signal arrival in terms of abnormal error probability for practical situations when noise has heavy tail distribution and signal-to-noise ratio is low. Whilst for Gaussian noise with α=2 the classic method of signal processing is still the best, the proposed modifications perform considerably better for α=1.8, α=1.6, and α=1.4 the results for which are presented in plots. The proposed modifications, in general, also perform better than processing based on median and alpha-trimmed forms of RDFT.
МЕТОД СИНТЕЗУ РІШЕНЬ ЗАДАЧІ ПРОГНОЗУВАННЯ СТАНУ ПАЦІЄНТІВ В СИСТЕМАХ МЕДИЧНОГО МОНІТОРИНГУ
Authors: Горячая Вероника Александровна , Угрюмов Михаил Леонидович , Гайденко Олег Александрович , Бакуменко Нина Станиславовна , Трофимова Ирина Алексеевна
Published: September 2023

This article proposes a mathematical model and computational method for solutions synthesis to the condition prediction problem of patients in medical monitoring systems. Research describes construction method of diagnostic models for quality criteria assessment of a bio-medical system (BMS) elements condition using monitoring data. Authors show an informativeness (significance) estimation method of the systems diagnosing models variables, obtained based on artificial neural networks (ANN) theory. The article describes a forecasting method of multidimensional time series obtained based on the condition variables monitoring data of the dynamic systems. Authors present a method for solving the condition classification problem of the complex systems elements. The developed method for solutions synthesis to the prediction problem is implemented in the computer decision support system (CDSS) for diagnosing patients in medical monitoring systems. Application examples of the described method for solutions synthesis to the condition prediction problem of patients in medical institutions are presented.The paper propose following developed innovations:a)   Mathematical method for solutions synthesis to the condition prediction problem of patients based on trend-analysis concept. Unlike existing, this method takes into account the high dimensionality of the states space and informativeness changes of monitored variables, which depend on the patients’ condition.b)   Method of informativeness (significance) variables estimation. It takes into account the measurement accuracy of the state variables and the presence of pair correlation between them, that allows to use this method for the analysis of the completeness of the models.c)   Statistical method of the patients’ condition classification. It contains orthogonalization procedure and the dimension reduction procedure of the condition variables factor space. In contrast to the existing it uses as a closeness measure precedents in the principal components space and the ability to determine the disease stage, which is not recognized by modern bio-markers (for example, hormone-refractory state);The classification problem of the patients condition was solved for the diagnosing result verification. The results of solving the classification problem of patients condition based on the monitoring data are obtained for the selected type of disease. It was found that with the using developed method and its implementation in CDSS the itself- recognizing probability of the class exceeds 75%.
ІНФОРМАЦІЙНА ПІДТРИМКА ПРОЦЕСІВ МОНІТОРИНГУ ТА КОНТРОЛЮ У ПРОЕКТАХ
Authors: Мартиненко Олександр Сергійович , Гусєва Юлія Юріївна , Чумаченко Ігор Володимирович
Published: September 2023

The need to make grounded decisions while monitoring and managing the requirements of stakeholders is an integral part of the project management as a whole, which, in particular, determines the quality and success of the project.  Known models and methods of project monitoring and control do not have a separate tool for monitoring the fulfillment of the requirements of stakeholders in projects and programs. Earlier authors suggested a model of juxtaposition of the hierarchical structure of the project with the hierarchical structure of the project requirements, the hierarchical structure of the project risks, the hierarchical structure of the project resources, and the organizational structure of the project. Thus, the "work-requirement”, "work-resource", "work-responsible", "work-risk" model (4R & WS) was established. The proposed method allows tracking the dynamics of project implementation by factors of the model (risks, requirements, resources, stakeholders, executors). The practical use of the method requires the formalization of the above relationships. If the relationship between "work-responsible" and "work-resource" can be specified explicitly, the links between "work-and-risk" and "work-requirement" should be given in the fuzzy form.The purpose of this article is to provide informational support for the 4R & WS method by constructing a process for formalizing fuzzy connections of the corresponding model.The process of formalization of fuzzy relationships was carried out to provide information support for the project monitoring and control method based on the comparison of the hierarchical structure of project activities with the hierarchical structure of project requirements, the hierarchical structure of project risks, the hierarchical structure of project resources, and the organizational structure of the project. A functional model of the process is constructed. The use of the results of expert evaluation for the construction of membership functions is suggested. The methods of constructing membership functions are analyzed; the use of the method of statistical processing of expert information is justified.
ЕЛЕМЕНТИ ТЕХНОЛОГІЇ ФОРМАЛІЗАЦІЇ ПРОЦЕСІВ В СИСТЕМАХ НАВЧАННЯ, ОСВІТИ І ВИРОБНИЦТВА
Authors: Морозова Ольга Игоревна
Published: September 2023

The research results, namely one of the new approaches to the management of training and educational processes with taking into account the production requirements for modern specialists are presented in the paper. The technology for the formalization of three subject areas "School – Higher Educational Institution – Production" is offered. The basic concept of technology for the formalization is the abstract concept of "subject area". Other key concepts of technology for the formalization also include the "core of the subject area", "core objects of the subject area" and "model of core objects of the subject area". The formalization process should begin with analysis, since the integrated areas have a number of distinctive features. Three types of objects are distinguished that play a main role in the management of training and educational processes with taking into account the requirements of production when forming each core of the subject are: sources of educational information; sources of information that determine the actions, which impact in organizational and administrative management; sources of information that form the competence for tasks to be solved at work, using computer technology. The features of formalization of integrated subject areas are discovered. The proposed technology for the formalization uses linguistic analysis, which is related to conceptual search and contains special tools that allow determining the general subject of educational and methodological literature and normative documents of subject areas of schools, universities and production. In addition, geoinformation analysis associated with spatially-distributed objects and elements of the state educational system, as well as with the infrastructure of the systems of general education schools, universities and production is used. The functional and system analysis related to the sequence of actions to establish structural links between models of subject areas of schools, universities and production are also used. It is shown that it is possible to formally represent a wide area of the production sphere with linguistic, fuzzy, systemic and combined models.
CИНТЕЗ РОБАСТНОГО ПІД-РЕГУЛЯТОРА ДЛЯ НЕВИЗНАЧЕНОЇ НЕЛІНІЙНОЇ МОДЕЛІ БПЛА З ВИКОРИСТАННЯМ ШТУЧНОЇ МОДЕЛІ ПОСИЛЕННЯ І ТИМЧАСОВОЇ ЗАТРИМКИ
Authors: Мохаммади Фархади Рахман , Кортунов Вячеслав Иванович
Published: September 2023

Estimations of the flight vehicles aerodynamic coefficients through the theoretical, numerical, wind tunnel and flight-test methods have always errors and uncertainties. Nonlinear dynamics of the unmanned aerial vehicle due to speed variations, as well as variability and uncertainty of the aerodynamic coefficients can be considered as an uncertain model. A robust proportional-integral-derivative controller is designed based on the nonlinear optimization in the time domain for the uncertain nonlinear dynamical model of the unmanned aerial vehicle. Artificial gain and time-delay models are added to achieve required stability margins as system robustness during the robust proportional-integral-derivative control design. The aerodynamic coefficients are divided into two groups on the basis of the output vector's sensitivity to the aerodynamic coefficients. Nonlinear optimization of the criterion is performed in two steps for the robust proportional-integral-derivative controller design. In the first step of the design, nominal values are used for coefficients with low-sensitivity, and upper and lower limits are used only for high sensitive aerodynamic coefficients. In the second step, the upper and lower limits are applied all of the aerodynamic coefficients to evaluate and re-adjust the robust proportional-integral-derivative controller parameters. The robust controller is designed for the uncertain nonlinear roll and lateral dynamic model of the Skywalker X8 flying wing to show the effectiveness of the proposed method to guarantee the stability margins. In the given example during the design of the robust controller, with adding of the artificial gain and time-delay model in the control loop the controller parameters are changed. This regulator increases the phase stability margin by about 10 degrees and the gain stability margin by about two for the family of the equivalent uncertain linear models.
ОРГАНІЗАЦІЯ ЗАХИСТУ ІНФОРМАЦІЇ В ІНФОРМАЦІЙНІЙ СИСТЕМІ ВИЗНАЧЕННЯ ТЯЖКОСТІ СТАНУ ПАЦІЄНТІВ З СЕРЦЕВО-СУДИННИМИ ПАТОЛОГІЯМИ
Authors: Руженцев Віктор Ігорович , Доброродня Ганна Сергіївна , Висоцька Олена Володимирівна , Куліш Тетяна Анатоліївна
Published: September 2023

The work is devoted to the organization of information protection in the information system for determining the severity of the condition of patients with cardiovascular pathologies. The analysis of threats to the security of personal data of patients was carried out. A conclusion is drawn about the threats to the information system being developed. To prevent these threats, it is necessary to ensure confidentiality, as well as the integrity of information about the patient. This can be done using cryptographic methods. Medical informational systems and methods which used in them are considered. The shortcomings of the above medical informational systems and methods of information protection are highlighted. The choice of block symmetric encryption of DSTU 7624: 2014 for data protection was analyzed and justified for the information system to determination state of severity of the patients with cardiovascular pathologies. A structural diagram of the information system is formed and its main modules are described. The main stages of encryption using the "Kalina" algorithm (DSTU 7624: 2014) are described. The scheme is presented and the main stages of key unfolding are described. The considered encryption algorithm DSTU 7624: 2014 provides a high level of resistance against attacks, as well as the speed of software implementation, allows you to select the length of the key and data block. The listed advantages of encryption with the use of the algorithm "Kalina" allow you to use it when encrypting medical and biological information, both long-term storage, and in situations where the speed of encryption is not critical. The presence of the proposed cryptography reduces the probability of theft of patient data in the information system for determining the severity of the condition of patients with cardiovascular pathologies.
МАТЕМАТИЧНІ МОДЕЛІ І ІНФОРМАЦІЙНІ ТЕХНОЛОГІЇ КОМПОНУВАЛЬНОГО СИНТЕЗУ СФЕРИЧНИХ КОНФІГУРАЦІЙ
Authors: Карташов Алексей Викторович , Коробчинский Кирилл Петрович
Published: September 2023

The concept of layout synthesis of optimal configurations is introduced in the article. Under the tasks of layout synthesis it means the formation of a set of geometric objects in such a mutual arrangement that would satisfy the given relations (constraints, properties) and would deliver an extremum to a certain quality criterion. One problem of finding the optimal configuration of geometric objects of spherical shape is considered. The problem is to find such an arrangement of set of spheres without their mutual overlaps, so that their spherical shell is minimal. For this problem, several equivalent mathematical models are given. Since the problem is NP-complete, methods are considered for solving it, based on the search and improvement of local minima.To find one local minimum, it can be used any method of non-linear optimization. In this paper it is used an open system IPOPT for solving optimization problems, using the methods of internal points to search for a local minimum.To search for a local minima, there are used several approaches. The first of them is based on the application of the  space expansion method. This method consists in finding a local minimum for a problem with constant radii, and then at the resulting point, a transition to a model with variable radii is made, in which the initial values of the radii of the circles change in a certain range in a random way. After that, the local search is performed again, and so many times. This approach allows for a directed search of a local minima, improving the solution.The second approach is based on a multiple search for a local minima using a genetic algorithm.The third approach is an interactive and uses human intuition. After obtaining some solution, the result is displayed in a graphical editor and the researcher can change the mutual position of objects, after which one of the automatic methods is applied. It is necessary that initial position objects do not be feasible. When solving a problem, it is necessary to ensure interaction between different stages of the solution. To do this, it is need to repeatedly convert geometric information from one form to another. Information technologies for the transformation of geometric information in the process of solving the problem are proposed.An example of a numerical solution is given.
Dependência química: uma reflexão do instituto terapêutico casa de glória
Authors: Martins Ryermeson Pereira , Sá Ana Keila de , Pinheiro Neto Felipe , Sousa Ciranilda da Silva , Jesus Júnior Ronaldo de , Soares Jaciara Durans , Pimenta Gisele de Jesus Silva , Cruz Saile Azevedo da
Published: September 2023

Este artigo propõe-se a apresentar a dependência química como um problema de saúde pública que afeta milhões de pessoas em todo o mundo e a importância do Instituto Terapêutico Casa de Glória em Palmeirândia, no estado do Maranhão, no tratamento de dependentes químicos. A dependência química é uma condição complexa que pode afetar qualquer pessoa, independentemente de sua idade, sexo, raça ou status socioeconômico. É importante entender que a dependência não é uma escolha, mas sim uma doença crônica que afeta o funcionamento normal do cérebro. O tratamento da dependência química é uma abordagem integrada e efetiva para a recuperação e reinserção social dos pacientes. Dessa forma, o estudo busca conscientizar e sensibilizar as pessoas para essa temática, utilizando para fundamentação teórico-metodológica uma pesquisa bibliográfica. Nessa perspectiva, constatou a fragilidade das políticas públicas voltadas a este tema, especialmente, as de incentivo ao ingresso do jovem no mundo do trabalho, geração de renda, cultura, esporte e lazer. Destaca-se que todo estudo é incluso e, dada a complexidade da abordagem, ainda há muito a ser pesquisado. Assim sendo, deseja-se que este ensaio sirva de inspiração e fundamento para a continuidade de pesquisas sobre essa questão.
A Importância da aplicabilidade do planejamento de obras na construção civil
Authors: Paula Claudia Lima de , Mendes Lorrana Ferreira , Silva Junior Flávio Vieira da , Rosa Rafael Augusto dos Anjos , Silva Osnilson Rodrigues , Ribeiro Nathalia de Souza , Delfino Joelson de Araújo
Published: September 2023

O planejamento de obras está diretamente ligado a qualidade e eficiência do empreendimento a ser desenvolvido. A falta desse elemento no processo de execução e controle de uma obra, pode causar danos às empresas responsáveis, como, perda da lucratividade, atraso na entrega de obras, desperdício de matérias e mão de obra, e consequentemente danos aos clientes, que buscam serviços com qualidade e baixo custo-benefício. Diante disso, o presente artigo tem como questão norteadora: qual a importância do uso do planejamento de obras dentro da construção civil? Com o objetivo de apresentar a importância do planejamento de obras dentro da construção civil, a fim de, amenizar os impactos causados pelas obras que não possuem gerenciamento e nem profissionais capacitados para executá-las. Para tanto, este trabalho foi desenvolvido a partir de um levantamento bibliográfico, que aborda a importância de um bom planejamento e os risco da sua não utilização, levando a concluir que um bom planejamento de obras, pode proporcionar inúmeros benefícios para construção civil, além de evitar custos desnecessários e, proporcionar aos gestores um melhor acompanhamento de todo o processo construtivo, oferecendo mais segurança a todos os envolvidos ​​na obra. E com isso, a principal conclusão do estudo foi que o planejamento é essencial para nortear as atividades que envolvem o processo construtivo e a sua utilização pode evitar gastos excessivos, otimizar o tempo e evitar desperdícios.
ПОЛЬСЬКІ ПОЛІТИЧНІ ПАРТІЇ В НАДДНІПРЯНСЬКІЙ УКРАЇНІ НАВЕСНІ-ВЛІТКУ 1917 РОКУ
Authors: Довгалець Оксана
Published: September 2023

Особливе місце посідали польські партії, єволюція політичного курсу яких істотно змінилися після падіння Тимчасового уряду, чим і пояснюється актуальність даного дослідження зумовлена й необхідністю вивчення досвіду роботи законодавчого органу в умовах формування вітчизняної державності. Аналіз діяльності фракцій національних партій дозволить відтворити цілісну картину роботи Центральної Ради, визначити домінуючі ідеї та прагнення національних меншин України, з’ясувати їхнє ставлення до прагнення українців відродити власну державу. Більшість з них мали досвід дореволюційної діяльності, їхня загальна чисельність в перші місяці революції переважала чисельність українських політичних партій, тому останні, які утворили Центральну Раду як представницький територіальний орган змушені були заручитися їхньою підтримкою щодо реалізації гасел українського національно-визвольного руху.
Los efectos del tratado comercial de México con Europa. El comercio y las inversiones durante los últimos años
Authors:   Universidad de Guadalajara, Romero Morett Martín G. , Lopez Delgadillo Jaime ,   Universidad de Guadalajara
Published: September 2023

En este trabajo se busca poner las relaciones económicas, el comercio y la inversión directa entre México y la Unión Europea en una dimensión de contraste con la que mantiene la economía nacional con Estados Unidos. Considerados a través del tiempo, los niveles que ha sostenido México con la Unión Europea se reducen a una proporción mucho menor que las que aparentan los responsables de ambos gobiernos. Las explicaciones al respecto las buscamos en lo que acontece, primordialmente, en el aparato productivo mexicano, haciendo de la productividad el tema central. Para ello se requiere que el aparato productivo funcione de forma eficiente, a la par de políticas públicas orientadas a apoyar a las empresas en tres áreas específicas: tecnología, aprendizaje y grado de economía alcanzado por las organizaciones productivas. El gobierno tiene un campo amplio de apoyo, pero son las empresas las que pueden o no ser productivas, y con ello competitivas en el comercio mundial.
Holocene Rice Rats (Genus Oryzomys) from the Upper Mississippi River Drainage Basin
Authors: Genoways Hugh
Published: September 2023

The expansion and collapse of the geographic range of the Texas rice rat (Oryzomys texensis) in the upper Mississippi River drainage basin at the end of the Holocene was a unique event in North American mammals. In a period of about 4000 years with a point of origin near the American Bottom in Illinois, these small rodents extended their geographic range in a straight-line distance of over 950 km to the west into Nebraska and the same distance to the east into Pennsylvania. Then in less than 400 years this range expansion collapsed back to a point where the northern-most edge of the modern geographic range of these rice rats is in southern Illinois. It is concluded that no single factor lead to this geographic range expansion, but it was a complex interplay of changes in Native American populations, culture, foodways, riverine habitats, and climate along with the impact of kleptoparasitism and passive anthropochory. The collapse of the expanded geographic range of Texas rice rats appears to have occurred between AD 1400 and AD 1600, but it did not occur simultaneously throughout the geographic range. This was not an orderly range contraction, but a collapse of populations in place with many local extinction events. These rice rat populations declined beginning with the onset of the Little Ice Age, which brought a colder and wetter climate that caused crop failures resulting from droughts, cold temperatures, or shortened growing seasons. These conditions stressed the dietary reserves of the human populations and thereby the rice rat populations. These conditions, particularly droughts, were harmful to the growing of maize, which served as the primary food resource of the Native Americans and the associated populations of rice rats. It is proposed that the pre-1910 records of rice rat from unusual localities compared to the modern geographic range in southwestern Ohio, Kentucky, and Kansas represent the final extinction events of these Holocene rice rat populations.
CERMINAN KUASA MELALUI PERIBAHASA MELAYU YANG BEROBJEKKAN ‘GAJAH’ DAN ‘HARIMAU’
Authors: Nopiah Julaina , Addli Mohammad Aasim , Osman Maizura
Published: September 2023

Peribahasa berobjekkan haiwan digunakan sebagai simbol bagi menggambarkan realiti kehidupan masyarakat Melayu dan mempunyai nilainya yang tersendiri untuk dijadikan panduan hidup. Cara hidup orang Melayu lama yang selalu meneliti unsur alam dan mengenali sifat haiwan menyebabkan mereka menggunakan haiwan sebagai simbol untuk berkias dan memberikan teguran.  Makalah ini bertujuan untuk mengenal pasti peribahasa yang menonjolkan konsep kuasa melalui objek ‘gajah’ dan ‘harimau’ Merungkai perkaitan antara objek dan aspek pemaknaan peribahasa yang berobjekkan ‘gajah’ dan ‘harimau’ melalui pendekatan semantik inkuisitif.  Data peribahasa Melayu telah dikumpulkan daripada pangkalan data www.malaycivilization.com dan Kamus Istimewa Peribahasa Melayu. Daripada sejumlah 275 peribahasa yang berobjekkan haiwan, lapan peribahasa yang berobjekkan ‘gajah’ dan ‘harimau’ telah dikenal pasti mengandungi kuasa sebagai aspek pemaknaannya. Kajian ini mengaplikasikan pendekatan Rangka Rujuk Silang (RRS) dan pendekatan semantik inkuisitif dalam penganalisisan data. Data yang diperoleh telah diperkukuh dengan hasil janaan data korpus yang menunjukkan persamaan antara ciri-ciri fizikal yang dipunyai oleh haiwan tersebut dengan konsep kekuasaan yang terdapat dalam elemen pemaknaannya. Kekuatan gajah yang terletak kepada ‘saiznya’, manakala kekuatan harimau pula terletak kepada ‘ ‘belangnya’. Kekuatan bagi kedua-dua haiwan ini, telah menyebabkan masyarakat Melayu menganalogikannya sebagai cerminan kekuasaan dalam peribahasa. Gabungan data, teori, falsafah dan budaya yang terdapat dalam semantik inkuisitif menjadi medan dalam dapat menghasilkan huraian makna yang merungkai perkaitan antara objek peribahasa yang digunakan dengan elemen pemaknaannya.
Leveraging Responsible, Explainable, and Local Artificial Intelligence Solutions for Clinical Public Health in the Global South
Authors: Kong Jude Dzevela , Akpudo Ugochukwu Ejike , Effoduh Jake Okechukwu , Luigi Bragazzi Nicola
Published: September 2023

In the present paper, we will explore how artificial intelligence (AI) and big data analytics (BDA) can help address clinical public and global health needs in the Global South, leveraging and capitalizing on our experience with the “Africa-Canada Artificial Intelligence and Data Innovation Consortium” (ACADIC) Project in the Global South, and focusing on the ethical and regulatory challenges we had to face. “Clinical public health” can be defined as an interdisciplinary field, at the intersection of clinical medicine and public health, whilst “clinical global health” is the practice of clinical public health with a special focus on health issue management in resource-limited settings and contexts, including the Global South. As such, clinical public and global health represent vital approaches, instrumental in (i) applying a community/population perspective to clinical practice as well as a clinical lens to community/population health, (ii) identifying health needs both at the individual and community/population levels, (iii) systematically addressing the determinants of health, including the social and structural ones, (iv) reaching the goals of population’s health and well-being, especially of socially vulnerable, underserved communities, (v) better coordinating and integrating the delivery of healthcare provisions, (vi) strengthening health promotion, health protection, and health equity, and (vii) closing gender inequality and other (ethnic and socio-economic) disparities and gaps. Clinical public and global health are called to respond to the more pressing healthcare needs and challenges of our contemporary society, for which AI and BDA can help unlock new options and perspectives. In the aftermath of the still ongoing COVID-19 pandemic, the future trend of AI and BDA in the healthcare field will be devoted to building a more healthy, resilient society, able to face several challenges arising from globally networked hyper-risks, including ageing, multimorbidity, chronic disease accumulation, and climate change.
Evidence-Based Policymaking in the Food–Health Nexus
Authors: Rocha Cecilia , Harris Jody
Published: September 2023

This article examines the role of evidence in influencing food and nutrition-related public health policy, and starts to chart a way through the political economy of knowledge and evidence within this nexus. We propose an analytical framework for untangling the influence of food industry interests and public health concerns in the policy process, presenting a guiding structure for how an issue might move between contested and uncontested policy spaces, finding that the inherent uncertainty in public health research on complex food systems presents opportunities for contestation by different interest groups. We then use our framework to understand the political economy of the recent sugar-sweetened beverage tax in Mexico, in which public health policies have been adopted despite going against an apparent interest of elements in the food industry. This kind of evidence, given the right framing, has the potential to break some current deadlocks in creating healthier food systems.
Expanding the limits of sex: a systematic review concerning food and nutrition in transgender populations
Authors: Gomes Sávio Marcelino , Jacob Michelle Cm , Rocha Cecilia , Medeiros Maria Fa , de Oliveira Lyra Clélia , Noro Luiz Ra
Published: September 2023

Objective: To examine the literature and identify main themes, methods and results of studies concerning food and nutrition addressed in research on transgender populations.

Design: A systematic review conducted through July 2020 in the MedLine/PubMed, Scopus and Web of Science databases.

Results: Of the 778 studies identified in the databases, we selected thirty-seven. The studies were recent, most of them published after 2015, being produced in Global North countries. The most often used study design was cross-sectional; the least frequently used study design was ethnographic. Body image and weight control were predominant themes (n 25), followed by food and nutrition security (n 5), nutritional status (n 5), nutritional health assistance (n 1) and emic visions of healthy eating (n 1).

Conclusions: The transgender community presents body, food and nutritional relationships traversed by its unique gender experience, which challenges dietary and nutritional recommendations based on the traditional division by sex (male and female). We need to complete the lacking research and understand contexts in the Global South, strategically investing in exploratory-ethnographic research, to develop categories of analysis and recommendations that consider the transgender experience.
Chronic diseases and emotional disorders are associated with low perception of quality of life in food insecurity/security
Authors: Pequeno Nila Patrícia Freire , de Araújo Cabral Natália Louise , Oliveira Angelo Giuseppe Roncalli da Costa , Crispim Sandra Patricia , Rocha Cecilia , Marchioni Dirce Maria , Lima Severina Carla Vieira Cunha , de Oliveira Lyra Clélia
Published: September 2023

Understanding individual perception of Quality of Life (QoL) can help combat social and health inequalities. We aimed to identify factors associated with Low Perceived Quality of Life (LPQoL) in 295 adults and older adults with food security and food insecurity, in the city of Natal, Brazil. A cross-sectional study was conducted from June to December 2019, with collection of data on socioeconomic demographic status, lifestyle information, non-communicable diseases (NCDs) and risk factors, emotional disorders, food (in) security and quality of life. To assess food insecurity, the Brazilian Scale of Food Insecurity-EBIA was used, and the WHOQOL-Bref questionnaire was used to assess quality of life. Poisson's Regression was used to verify associations between variables and LPQoL, stratifying the sample into food secure (FS) and food insecure (FI) groups. In the FI group, being overweight, older adult, having no partner, drinking alcoholic beverages twice a week or more, and not having daily availability of water were associated with LPQoL, and in the FS group, having diabetes, monthly family income in the 1st and 2nd tertiles, and never having studied was associated with LPQoL. Reporting emotional disorders and sleeping < 7 h/day were associated with LPQoL in both FI and FS groups. LPQoL was associated with the occurrence of NCDs and risk factors, and emotional disorders, regardless of the food security measure. However, the lack of adequate access to water highlights the social vulnerability of the FI group.