bluuebunny/crossref_metadata_2025 huggingface dataset:
O impacto da pandemia de COVID-19 na população indígena: uma análise científica
Authors: Xavier Fernanda Queiroz , Medeiros Julya Sabino , Freitas Maria Eduarda Sudária de , Silva Regiany Rodrigues , Barbosa Fernando Daniel Pereira , Souza Isabella de Oliveira , Andrade Larissa Martins Vieira de , Bernardes Ana Clara Silva Megale , Pessoa Ana Luisa Martins , Araújo Nathália Rebouças da Costa , Silva Thaís de Castro e Sousa da , Bucar Viquituá Maria Morais Gomes , Bizerra Carlos Eduardo Rocha , Oliveira Thalita de Cassia Silva de , Carneiro Izabella Rodrigues , Saturnino Julia Vallentina de Souza , Ramos Isadora Gonçalves Alves , Barbosa Letícia Arantes , Vieira Guilherme Alves , Rosa Raul Borges Ribeiro , Melucci Beatriz Hoffmann
Published: April 2024

A pandemia de COVID-19, desencadeada pelo coronavírus SARS-CoV-2, tem sido um desafio global, afetando diversas comunidades, com destaque para as populações indígenas, historicamente marginalizadas e vulneráveis devido a desigualdades estruturais. O presente artigo trata-se de uma pesquisa bibliográfica, através de uma revisão integrativa da literatura. A análise epidemiológica revela que fatores como superlotação em moradias, falta de acesso a água potável e saneamento básico, além de altas taxas de comorbidades, contribuem para a propagação e impactos severos da doença nessas comunidades. A falta de acesso a serviços de saúde adequados é agravada pela escassez de infraestrutura e profissionais de saúde em áreas remotas, somada a barreiras linguísticas e culturais. Apesar dos desafios, as populações indígenas têm demonstrado resiliência, implementando medidas proativas de prevenção, promovendo solidariedade comunitária e preservando práticas tradicionais de cura. Estratégias de longo prazo incluem a diversificação econômica e o fortalecimento dos sistemas de saúde indígenas. A conclusão ressalta a importância de reconhecer e valorizar os conhecimentos e direitos das comunidades indígenas, promovendo ações colaborativas para construir sociedades mais inclusivas e resilientes.
Oxandrolona como terapia adjuvante no ganho de estatura de pacientes com Turner: uma revisão integrativa
Authors: Rodrigues Gabriel Marques , Nascimento Isadora Pereira do , Maciel Maria Jackellinne Ribeiro , Rocha Alice Hueb Castanheira , Souza Victorya Gomes de , Mamani Tobias Roberto Lopez , Oliveira Priscila Benitz Rios de , Minari Fernando Valloto
Published: April 2024

A Síndrome de Turner é marcada por uma reduzida estatura por partes de seus portadores,para reduzir o efeito da síndrome sobre a altura final faz-se necessário o uso de estratégias farmacológicas,principalmente,o hormônio do crescimento(GH) que pode ser associado a oxandrolona na busca de resultados expressivos.Objetivo:Compreender se a associação da oxandrolona é positiva no ganho de estatura do indivíduo que possui a Síndrome de Turner.Método:Foi realizada uma revisão integrativa da literatura disponível.Resultado:Foram encontrados 7 artigos na base de dados PubMed que estavam de acordo com os critérios de inclusão e exclusão definidos.Discussão:A literatura aponta que a utilização da oxandrolona como adjuvante terapêutico ao GH,tem relevância estatística e clínica,ainda mais quando se é respeitado um perfil de tolerabilidade do fármaco no qual os efeitos de virilização não são tão frequentes,isto ocorre com doses de,em geral, 0,03mg/kg por dia.Conclusão:A Oxandrolona possui efeito significativo para o ganho de estatura,sem que ocorram efeitos significativos de virilização desde que sua associação seja feita com base em doses diárias baixas.
A prevalência da hemorragia pós parto e as suas complicações: uma revisão de literatura
Authors: Oliveira Isabella Eduarda de Godoy , Cruz Isabela Chein Andere , Guedes Carolina Cotrim , Romão Isabella Caetano , Oliveira Karin Luíse Cavalcanti da Mota Cabral de , Lacerda Rodrigo Pires , França Millena Matheus , Carvalho Maria Fernanda Abreu , Senger Nicole Ossipe , Tokarski Igor Caminha , Holanda Nicole Costa de , Rodovalho João Gabriel Marion , Isa Isabela , Martins Letícia Teixeira , Autran Maria Fernanda Lourenço
Published: April 2024

A hemorragia pós-parto é uma complicação grave que ocorre após o parto, caracterizada por uma perda excessiva de sangue, geralmente mais de 500 ml em partos vaginais e mais de 1000ml em cesarianas. Pode ser causada por uma variedade de fatores, incluindo atonia uterina (falha do útero em contrair-se após o parto), lacerações do trato genital, retenção de tecido placentário ou coagulopatias. Dessa forma, por ser um tema capaz de levar a uma grande quantidade de mortes maternas, necessita de discussão, para que números de óbito e complicações diminuam. Assim, 11 trabalhos foram analisados com o intuito de abordar acerca da prevalência da Hemorragia Pós Parto e através disso, otimizar as medidas públicas. Nesse contexto, concluiu-se que é de suma importância que a equipe esteja preparada e com as medicações de prontidão para evitar tais casos e que o pré natal seja realizado de forma eficiente e eficaz. Ademais, complicações da hemorragia pós-parto podem afetar não apenas a mãe, mas também o recém-nascido, aumentando o risco de mortalidade neonatal e problemas de saúde a longo prazo. Portanto, é fundamental que a equipe da sala de parto esteja preparada para reconhecer e tratar rapidamente essa condição potencialmente fatal.
Consumo alimentar, de acordo com o grau de processamento (NOVA), de mulheres com câncer de mama e fatores associados ao hábito de fumar
Authors: Figueiredo Brenda Borges Tosta , Matos Ruthiellen Gomes , Abreu Ana Clara Ferreira , Martins Karine Anusca , Gonçalves Larissa Vaz , Mota Jordana Carolina Marques Godinho , Souza Luciana Bronzi de
Published: April 2024

Objetivo: Caracterizar o consumo alimentar, segundo grau de processamento, de mulheres com câncer de mama com verificação de possíveis fatores associados ao hábito de fumar. Método: Estudo transversal aninhado a uma coorte de mulheres recém-diagnosticadas com a doença, em um hospital público. Os dados foram coletados entre 2014 e 2017. Foi realizada a caracterização sociodemográfica, bem foram levantadas variáveis sobre estilo de vida (presença ou ausência de tabagismo e etilismo). Para caracterização do consumo alimentar foram aplicados três recordatório de 24 horas e a quantidade e qualidade da alimentação foram calculadas pelo programa Nutrition Data System for Research. Após obtenção dos dados de consumo, os alimentos foram classificados segundo a NOVA. Resultados: Participaram do estudo 114 mulheres, com idade média de 51,25±11,52 anos, 7,99±4,26 anos de estudo e 0,80±0,72 salários-mínimos per capita, maioria de raça parda/preta (56,14%; n=64); com companheiros (57,89%; n=66); sem casos de câncer de mama na família (80,70%, n = 92). Quase 40,00% eram tabagistas e ex (9,65% e 29,82%) e majoritariamente não consumiam bebidas alcoólicas (96,46%). Em relação ao consumo de alimentos, aqueles in natura/minimamente processados representaram 61,87(±13,91)% das calorias ingeridas, 11,54(±8,16)% de ingredientes culinários, 12.19(±10.07)% de alimentos processados e 14,21(±11,80)% de ultraprocessados. Dentre o grupo in natura/minimamente processados, carne bovina (11.54±10.76%), arroz (9.86±8.10%) e frutas (9.37±9.57%) foram os que mais contribuíram energeticamente. Em relação aos ultraprocessados, refrigerantes e sucos industrializados (4.22±5.03%) e bolachas salgadas e salgadinhos (2.20±4.17%) foram os de maior contribuição energética. Conclusão: Mulheres com câncer de mama apresentaram ingestão energética menor que o padrão brasileiro, e aquelas que fumavam apresentaram 2,20 vezes mais chances de terem um consumo elevado de alimentos ultraprocessados. O consumo de ultraprocessados deve ser evitado, uma vez que estes relacionam a maior mortalidade pela doença.
Sergipe no cenário nacional de doações de medula óssea: desafios e conquistas
Authors: Valois Gabriel Morais , Araújo Sabrina Layra Souza , Gomes Marina Marques Novais , Rodrigues Letícia Maria Cardoso Lima , Menezes Lays Rejanne Santos de , Menezes Camila Barbosa de , Rocha Neto José Aurino , Lordêlo Isana Carla Leal Souza
Published: April 2024

O transplante de células tronco hematopoéticas é atualmente uma das principais categorias de tratamento para pacientes portadores de doenças onco-hematológicas e outros distúrbios de caráter imunogenético adquiridos ou congênitos. Sabe-se que o maior gesto de contribuição da sociedade civil para com esses pacientes é se cadastrar como doador de medula óssea através dos trâmites e banco de dados do REDOME (Registro Brasileiro de Doadores Voluntários de Medula Óssea) para alcance de um portador geneticamente compatível com um receptor. Neste trabalho, foram analisados os maiores entraves para ser um doador de medula óssea e a forma de distribuição em parâmetros epidemiológicos dos doadores nos âmbitos nacional, estadual e no estado de Sergipe, com o objetivo de obter padrões de tendências da doação de medula óssea ao longo dos últimos dez anos.
Assistência de enfermagem no atendimento de mulheres em situação de violência doméstica: revisão integrativa
Authors: Alves Sabrina Santos , Santos Luiz Nayran Moura dos , Oliveira Caio Guilherme Santos Morais , Silva Maria Morgana Lima , Passos Laís Emanuelle Santos , Santos Ronaldo Correia dos , Costa Lucas da Silva , Sobral Jocenaria Oliveira , Santos Marenize de Jesus , Vieira Elaine Cristina Santos
Published: April 2024

Os diversos tipos de violência contra as mulheres têm sido historicamente incessantes em ambientes intra e extrafamiliar, tornando-se cada vez mais expostas e implausível no decorrer dos anos, evidenciados por danos causados na saúde mental e física das vítimas, resultando não só em um preconceito de gênero, mas também um problema de saúde pública. O presente estudo visa identificar a relevância da qualificação e do impacto da assistência de enfermagem, frente às vítimas de agressões domésticas, baseando-se no conhecimento do enfermeiro referente aos aspectos éticos e legais do cuidado. Trata-se de uma revisão integrativa da literatura com abordagem quantitativa com artigos extraídos das plataformas científicas virtuais SCIELO (Scientific Electronic Library On-line), MEDLINE (Medical Literature Analysis and Retrievel System Online), BVS (Biblioteca Virtual de Saúde), LILACS (Literatura Latina Americana do Caribe em Ciências da Saúde e WHOLIS (Sistema de informação da biblioteca da OMS) utilizando os seguintes Descritores em Ciências da Saúde (DeSC): violência contra mulher, cuidados de enfermagem e assistência de enfermagem. Os artigos foram pesquisados e revisados no período de março a novembro de 2021. Foram encontrados 126 artigos através dos descritores escolhidos, dos quais 19 foram selecionados, pois respondiam diretamente o objetivo da pesquisa. Os demais artigos excluídos não obedeceram aos critérios de inclusão apresentados neste artigo. O cuidado e o planejamento de enfermagem às mulheres vítimas de violência doméstica devem ser pautados em oferecer conforto, respeito, acolhimento e segurança. Essas medidas cautelosas devem ser sistêmicas na prevenção de problemas e agravos à vítima, onde nesse sentido, cada profissional busca uma melhor metodologia para conduzir essas mulheres, utilizando uma comunicação ativa como importante ferramenta. Com tudo, é notória a persistência no défice da assistência dos profissionais de enfermagem no acolhimento às vítimas, sendo imprescindível a implantação de protocolos e o investimento em capacitação dos profissionais, para que os mesmos possam prestar a assistência mais abrangente e especializada a estas vítimas.
Uso de pessários como alternativa ao tratamento cirúrgico de prolapsos genitais
Authors: Cavalcanti Celli Veloso , Nunes Jussara Maria Valentim Cavalcante , Fortes Ana Augusta Leal , Holanda Melina Maria Ramos Nunes Martins , Bezerra Camila de Sá , Albuquerque Larisse Stéffany de Oliveira , Santos Maria Rosa Adad Amorim
Published: April 2024

As distopias genitais são uma importante entidade e geralmente se manifestam acompanhadas de queixas urinárias, anorretais e disfunções sexuais, conferindo alta morbidade. Apesar da cirurgia ser considerada padrão-ouro, possui altas taxas de recidiva. O pessário se insere nesse cenário, portanto, como uma alternativa simples e barata para essas pacientes. O objetivo principal do estudo foi avaliar o impacto do uso de pessários na qualidade de vida de mulheres com distopia genital por meio de questionário. Trata-se de um estudo longitudinal prospectivo que teve como critérios de inclusão mulheres com prolapsos genitais graus III e IV com desejo de utilizar o pessário, que estavam na fila de cirurgia, com contraindicação ao procedimento cirúrgico ou sem desejo de realizá-lo. A avaliação da qualidade de vida foi feita por meio de aplicação de questionário validado de qualidade de vida em prolapso, aplicado antes e 3 meses após a inserção do pessário. Ao final, foi obtida uma amostra de 12 mulheres por conveniência. Os valores do questionário antes e depois foram avaliados pelo método de Wilcoxon com p<0,05. Dentre os dados gerais da amostra, tem-se uma média de 78,42 anos e 5,83 partos. A maioria das mulheres apresentaram mais de um fator de risco, sendo menopausa (100%), multiparidade (83%) e parto vaginal (83%) os mais importantes, confirmando uma etiologia multifatorial do prolapso genital. Foi observada uma redução significativa do impacto do prolapso na qualidade de vida dessas mulheres, principalmente nos domínios relacionados ao impacto do prolapso de 87%, emoções de 90%, limitações físicas de 54%, limitações de atividades de 90% e medidas de severidade 88%. A percepção geral de saúde também apresentou melhora significativa do score geral, mesmo na vigência de complicações, como corrimento aumentado (25%), expulsão do dispositivo (16,67%), desconforto (25%) e úlcera (25%), tratadas ambulatorialmente. Os relacionamentos pessoais foram pouco afetados, contraditoriamente à literatura, por conta do viés da maioria ser viúva ou não ter comunicado sobre o prolapso para familiares. Junto a ele, os domínios de sono e energia e limitações sociais, apesar de apresentarem melhora, não houve significância estatística devido à limitação do tamanho da amostra, exigindo estudos adicionais. O uso de pessário vaginal como alternativa ao tratamento cirúrgico de prolapso genital graus III e IV apresentou resultados positivos na qualidade de vida das pacientes portadoras, sendo realidade em outros países. Adicionado a isso, foi constatada a importância da relação médico-paciente para a adesão ao tratamento.
Preservação da fertilidade em oncologia: uma necessidade cada vez mais premente
Authors: Pereira Mariana Lanuza Campos , Costa Sabrina Glória , Dayrell Sophia Perrupato , Locarno Laura Magalhães , Penna Thereza Ribeiro de Paula , Camelo João Marcos , Reis Stefany Katelei Barros , Ferreira Yasmin Vitória Amaral , Andrade Bruna Luisa Mota , Matos Júlia Pereira de , Andrade João Victor Silveira
Published: April 2024

A preservação da fertilidade em pacientes oncológicas tornou-se um tema de grande importância devido aos avanços no tratamento do câncer, que aumentaram significativamente a sobrevida dessas pacientes. Muitos dos tratamentos utilizados, como a quimioterapia e a radioterapia, podem causar danos aos ovários e reduzir a fertilidade. Portanto, é fundamental oferecer opções de preservação da fertilidade a essas pacientes antes do início do tratamento oncológico. O objetivo deste estudo foi revisar as principais estratégias de preservação da fertilidade em pacientes oncológicas, avaliando sua eficácia e segurança, bem como discutir as questões éticas e psicossociais relacionadas a esse tema. Foi realizada uma revisão sistemática da literatura através de estudos atualizados sobre preservação da fertilidade em pacientes oncológicas, incluindo estudos clínicos, revisões sistemáticas e diretrizes de sociedades médicas relevantes. Foram utilizadas bases de dados eletrônicas, como PubMed, Scielo e Lilacs, através de termos relacionados à infertilidade e oncologia. As estratégias de preservação da fertilidade em pacientes oncológicas têm demonstrado ser eficazes na manutenção da fertilidade e na melhoria da qualidade de vida dessas pacientes. A criopreservação de óvulos e embriões tem se mostrado segura e eficaz, permitindo que as pacientes realizem tratamentos de reprodução assistida após a conclusão do tratamento oncológico. Além disso, a utilização de inibidores da função ovariana durante a quimioterapia e a transposição dos ovários para um local fora do campo de irradiação durante radioterapia pélvica têm se mostrado também uma opção viável. A preservação da fertilidade em pacientes oncológicas é uma necessidade cada vez mais premente, pois permite que essas pacientes tenham a oportunidade de realizar o sonho da maternidade após o tratamento do câncer. Portanto, é fundamental que os profissionais de saúde estejam atentos a essa questão e ofereçam opções de preservação da fertilidade a todas as pacientes em idade fértil que serão submetidas a tratamento oncológico.
From Post-Modernism to Critical Art
Authors: Jarmocewicz Grzegorz
Published: April 2024

“[...]. Human existence – a vast, unlimited space of reﬂections on life and death, in the ﬁelds of philosophy, morals, history, culture...
Grzegorz Jarmocewicz, reaching into all these areas and categories, gives us his own interpretations to launch in us layers of associations and references to our own experiences. […]”. Critic, art historian Marek Grygiel. “[...]. Jarmocewicz’s work presents a variety in the form of a search. It contains a modernist tradition, as well as an oppositional, postmodernist tradition. From the psychological side, through a speciﬁc form, it is contained between heaven and hell. [...]”. Critic, art historian Dr. Krzysztof Jurecki. “ [...]. (His photographs are) economic reﬂections of the diversity of cultural codes, which are the artist’s modest contribution to certain areas of reﬂection, at the same time deﬁning them and remaining outside the framework of the term [...]”. Prof. Jerzy Olek. “ [...]. He ﬁts in with his attitude and creative search in the area of photographers of philosophers who, with the help of their pictures-photographs, reﬂect on life, death, time, history, culture. [...]”. Prof. Marek Szyryk.
Colour in Student Magazine Design
Authors: Škvareninová Oľga , Janáčková Ľubica
Published: April 2024

Creating a school magazine offers students opportunities to develop their skills, professional potential, teamwork, creativity, media literacy, and involvement in the school community. In magazine design, colours create a positive first impression, strengthen a magazine’s attractiveness and popularity among readers. Combinations of colours form a consistent visual identity and hierarchy, and set the spatial balance. Since colours have an emotional impact, they can affect the mood of the readers or evoke an emotion that corresponds to the article’s content. Using a colour palette that matches the identity of the university or the faculty can reinforce brand awareness and help build trust with students and the wider public. Critical to creating a professional university magazine are not only the right background and typeface colours, but also matching colours of imagery that appropriately complement the typography and page layout, including white spaces that reinforce the professional to upscale feel of the magazine design. Effectively selected colours will not only make the magazine a communication vehicle for information, but will also enhance marketing potential and especially aesthetic values.
Mass Media Culture in Slovakia (on the Example of Tracking the Value Message of Media Content Flowing to the Public)
Authors: Orban Karol
Published: April 2024

The media inherently reflect the cultural, political and social contexts of a nation through products (audiovisual programmes). Public opinion to some extent participates in the profiling of the programmes broadcast. The thematic concept of media products is marked by the current social current – the mainstream. The paper deals with the state of contemporary Slovak media in terms of value setting, specifically noting the pitfalls related to censorship, i.e. blocking uncomfortable opinions. It gives examples from media practice testifying to the violation of the typical principles of respecting the values of the pluralistic society in which we have been living for more than three decades. The main objective of the paper is to make the public image concerning media freedom (reflecting on problematic social causes) more accessible by presenting the stated facts, comparing them and placing them in a broader substantive context. Freedom of expression (thought) in the media should be maintained to a healthy degree even at the cost of expressing an opinion that contradicts the rhetoric of those in political power.
DIAGNOSTIC METHOD OF CONTROLLING THE OSCILLATION MECHANISM OF THE CRYSTALLISER OF THE CONTINUOUS CASTING BARREL MACHINE
Authors: Mazur Ihor , Volokh Vitaly
Published: April 2024

Diagnostic devices for monitoring the oscillation mechanism of the mold can increase the stability of steel casting on a continuous caster. The amplitude of crystallizer oscillations is expressed as a sum of harmonic oscillations with different frequencies and is described by the Fourier transform. Wear of the crystallizer sleeves occurs in the lower part. Constant diagnostic monitoring of the state of the crystallizer swing mechanism will increase the durability of copper sleeves. Recommendations for increasing the durability of copper sleeves are provided.
ON THE CENTERS OF CORROSION INITIATION IN STEEL SUBJECTED TO LASER ACTION
Authors: Gubenko Svetlana
Published: April 2024

The effect of laser action on the initiation and development of corrosion damages in steels near non-metallic inclusions has been investigated. It has been established that laser treatment enhances the corrosion resistance in low-cycle fatigue of steels containing various inclusions. It is shown that the effect of laser treatment on increasing the resistance of steels to the formation of corrosion damages is associated with a change in the state of the inclusion-matrix interphase boundaries, which contributes to a decrease in their permeability for corrosive elements and an increase in the cohesive strength of these boundaries in active media.
THE METHOD OF DIFFERENTIAL THERMAL ANALYSIS IN STUDIES OF THE SOLID PULVERIZED FUEL DESTRUCTION AT A HIGH HEATING RATE
Authors: Yurii Stupak
Published: April 2024

An analysis of publications containing information on the differential thermal analysis (DTA) method history, its essence and some aspects of practical use for the analysis of of solid fuel thermal destruction and combustion was carried out. A method of laboratory research based on the principles of DTA, characterized by a high heating rate (up to 2000 degr/min), is proposed. The possibility of using the proposed technique for comparative analysis of thermal destruction the kinetics for pulverized coal fuel (PVP) mixtures blown into blast furnaces to replace coke is shown.
Analysis of the impact of plastic utilization technology in a blast furnace on technical and economic indicators and carbon dioxide emissions
Authors: O. Chaika , B. Kornilov , A. Moskalyna , V. Lebid
Published: April 2024

Taking into account global trends in reducing the impact of anthropogenic factors on nature, namely the utilization of plastic waste and decarbonization of industrial facilities, the article studies the impact of the use of plastic in a blast furnace, as the most energy-intensive unit in the steel production cycle, on the technical and economic indicators of blast furnace melt and CO2 emissions from the blast furnace based on the heat balance. It was found that the use of plastic in a blast furnace will allow solving the issue of its utilization with the least environmental impact. The quantitative impact of plastic use on furnace performance, coke consumption, and CO2 emissions was determined. The coefficient of coke replacement by different types of plastic when used in a blast furnace was determined.
INFLUENCE FACTORS ON THE FORMATION OF MECHANICAL PROPERTIES AND STRUCTURE OF STEEL FOR MANUFACTURE OF RAILWAY AXES
Authors: Semen Sviridov , Valeriy Balakin , Tetiana Balakhanova , Vladyslav Havryliak
Published: April 2024

The article investigated the features of the destruction and deformation of metal plates made of 30CrNi2Mo steel after ballistic tests. The peculiarity of the experiment was that during the test, the plates was additionally subjected to vibration at frequencies of 10 and 20 Hz. The perspective of the impact of vibration on the ballistic stability of plates has been revealed. After the experiment, through-holes of fragmentation and petal types with subsequent cracking were found in the static plates. Cracking propagates deep into the undeformed plate. The application of vibration showed a significant improvement in ballistic properties. When applying the combined test, a change in the resistance of the target was detected. Namely, the plastic component of the metal around the hole was increased and bullet fragments were found that remained on the surface of the plate after the test. It is shown that the further application of vibration is a promising direction for increasing the ballistic resistance of materials.
DESIGN OF A CONTROL SYSTEM WITH A PREDICTIVE MODEL FOR A TWO-DRIVE MANIPULATOR WITH A PARALLEL STRUCTURE
Authors: Rudakova. Antonina , Lebedenko. Yurii , Rudakova. Hanna , Nilova Daria
Published: April 2024

This work intends to contribute to the corpus of knowledge on parallel manipulators and their control by making the most use of Model Predictive Control. We aim to investigate parallel manipulator kinematics, dynamics, and control strategies in detail in order to open up opportunities for enhanced performance, flexibility, and precision in these robotic systems.
METHODOLOGY OF STEP-BY-STEP DESIGN OF INVESTMENT PROJECT PORTFOLIO
Authors: Artem Basko , Nina Ershova
Published: April 2024

Project portfolio management is an important stage in the project life cycle. The project portfolio selection phase is the most important in the portfolio life cycle. Until now, the optimal solution to the problem of this phase has not been found. A methodology for step-by-step design of a portfolio of investment projects is proposed. The first is the formation of a portfolio of projects based on mathematical programming and modeling methods. The second is the evaluation of the effectiveness of the selected projects by the method of analysis of hierarchies. The third is the distribution of investors' funds between the projects of the project portfolio on the basis of playing with nature. The evaluation of the effectiveness of the three projects was carried out by the method of analysis of hierarchies, and the criteria are the following performance indicators: the indicator of scientific and technical efficiency, the economic indicator, the social indicator and the indicator of ensuring information security. Each criterion has four subcriteria. The results of the calculation determine the effectiveness of projects, which allows resources to be allocated between projects.
USING THE METHOD OF SUPPORT VECTORS ON THE EXAMPLE OF PREDICTING THE PROPERTIES OF HYDROCARBON DEPOSITS
Authors: Andrii Dmytrenko , Iryna Dmytriieva
Published: April 2024

. Permeability stands as a crucial parameter in characterizing any hydrocarbon reservoir, rendering it indispensable for accurate solutions to numerous petroleum engineering challenges. Conventional methods for determining permeability, such as core analysis and well test techniques, are notably costly and time-consuming. Hence, efforts have been directed towards leveraging artificial neural networks to establish correlations between well log data and core permeability. Recent advancements in artificial intelligence techniques have introduced a robust machine learning methodology known as support vector machine (SVM). This study aims to employ SVM in predicting the permeability of three gas wells within the Southern Pars field. The results obtained from SVM demonstrated a correlation coefficient of 0.97 between core and predicted permeability for the testing dataset.
RESEARCH OF THE TECHNOLOGICAL INDICATORS OF THE WORK OF A VIBRATING SCREEN WITH ELASTIC SIVES
Authors: Dmytro. Kononov , Oleksandr. Hrytskov
Published: April 2024

In the metallurgical branch of industry, the problems of separation according to the given size - screening of the original metallurgical raw materials, in particular coke, are relevant. This ensures high-quality operation of the technological equipment of blast furnaces and supply of blast furnace coke of regulated size. In this regard, research is constantly being conducted and the development of new methods of screening and modernization of devices to improve the performance of vibrating screens continues. The purpose of the scientific work: an experimental study of the technological parameters of the vibration screen with elastic sieves. The paper gives a description of the laboratory vibrating sieve with an elastic sieve, which is used in the research. An experimental study of the technological parameters of the screening process of the vibrating screen was carried out and the dependence of the technological indicators on the parameters of the vibrating screen was constructed. It has been shown that the highest screening efficiency is observed at oscillation frequencies in the range of 22-27 Hz. At these frequencies, the efficiency indicators of the screening process vary between 78-90%. A change in the value of the specific load from 10 t/(h m^2) to 16 t/(h m^2) causes a gradual decrease in the screening efficiency from 90% to 65%.
SIMULATION OF THE JET PUMP WORKING PROCESS WITH ITS ASYMMETRIC ROTATION IN THE WELL
Authors: Denys Panevnyk
Published: April 2024

The structure of the equations of the pressure-flow characteristics of the high-pressure jet pump is supplemented with a component that determines the additional pressure caused by the influence of eddy currents during the asymmetric rotation of the ejection system around the axis of the well. On the basis of the joint solution of the Bernoulli equations, the preservation of the integrity of the moving medium, the momentum and moment of movement of the mixed flows, a relationship was obtained for the analytical determination of the additional dynamic pressure created by the rotation of an eccentrically placed jet pump in the well. In the process of researching the resulting equation, the extreme nature of the growth of the pressure-flow and energy characteristics of the overbite ejection system was established. The increase in pressure and efficiency caused by the asymmetric rotation of the over-chisel ejection system is inversely proportional to the value of the main geometric parameter of the jet pump.
DATABASES AND MODELS TO SUPPORT THE ACCEPTANCE OF TECHNOLOGICAL DECISIONS IN THE PROOFING OF STEEL AT THE LADLE FURNACE INSTALLATION
Authors: Daria. Togobitska , Iryna Povorotnia , Yury Likhachev , Khodotova Nadiya
Published: April 2024

The need to develop the databases of the «Metallurgy» industry data bank in order to preserve unique industrial and laboratory experimental data, which can be the basis of licensed profile computer programs, is substantiated. Emphasis is placed on the importance of the development of calculation methods for determining the primary properties of ferroalloys, which will ensure that industrial metallurgists receive adequate data for further operational decision-making in the production of competitive and high-quality steel and their introduction into automated technological process control systems. Based on the concept of directional chemical bonding, models have been developed that allow predicting important physicochemical and thermophysical properties that are the limiting factors in the efficiency of interphase interaction processes, in particular, of manganese-containing ferroalloys with sufficient accuracy for industrial use.
INTERACTION OF DISCOURSE ANALYSIS AND SENTIMENT ANALYSIS TO IDENTIFY EMOTIONAL STATE IN TEXT COMMUNICATION
Authors: Iryna Dmytriieva , Dmytro Bimalov
Published: April 2024

This paper is devoted to the study of two fundamental tasks of neuro-linguistic programming: discourse analysis and sentiment analysis, which are two fundamental tasks of natural language processing. The paper examined some models and algorithms for improving data processing in the process of textual communication between users. The study showed that the use of a joint model of discourse analysis and sentiment analysis is mutually beneficial. The results show that the information obtained from the discourse can help in determining the mood, and sentiment analysis and knowledge of two text fragments can help determine the discourse relations between them.
STUDY OF DYNAMIC PARAMETERS OF H-ROTORS OF VARIABLE CONFIGURATION
Authors: Таrasov Serhii , Dorosh Olha
Published: April 2024

Calculations of the natural frequencies and forms of oscillations of a typical structural assembly of the H-rotor design of Dareus were carried out. It includes a sliding traverse and a blade fixed at its end. The dependencies of the eigenfrequencies of the extendable traverse-blade unit on the number of the vibration form at different values of the traverse extension value, as well as the dependence of the eigenfrequencies on the degree of traverse extension for five forms of oscillations, were obtained.
STUDY OF THE INFLUENCE OF THE GEOMETRIC FORM OF PIGS ON THE EFFICIENCY OF CLEANING PIPELINES
Authors: Doroshenko Yaroslav , Stetsiuk Serhii , Fіlipchuk Oleksandr
Published: April 2024

The effect of the geometric shape of the pigs on their passage and pipeline cleaning efficiency was investigated by numerical modeling and experimentally. For this, a 3D geometric model was built and experimental samples with a convex front and a concave back part were made from silicone compound. The properties of the pigs material are described by the Mooney-Rivlin deformation potential energy model. The simulation results are visualized by constructing three-dimensional colored fields of equivalent Mises stresses on the contours of the pigs for different values of the friction coefficient between its side surface and the inner wall of the pipeline. It was found that making the rear part of the pigs concave leads to a significant increase in the contact forces between the pigs and the inner wall of the pipe, which has a significant impact on its passage and the efficiency of cleaning the internal cavity of the pipeline. Moreover, with an increase in the coefficient of friction, the equivalent stresses near the rear end of the pigs increase, and therefore the contact forces increase and the flow through the pigs decreases.
ANALYSIS OF METHODS OF SATELLITE MONITORING OF CHANGES IN WATER BODIES
Authors: Kavats Olena , Kavats Yurii , Roi Dmytro
Published: April 2024

Surface waters are part of the ecosystem services of various countries of the world, mainly intended for domestic, industrial and agricultural use, production of food, electricity (hydropower), obtaining medicinal substances and other materials from biota, organization of places of rest and recreation. Seasonal monitoring of the level of surface water allows obtaining a qualitative characteristic and quantitative assessment of changes in the hydrological ecosystem service as a result of climate changes and anthropogenic influences. In this regard, technologies for operational monitoring of the dynamics of changes in water bodies play an important role.
DEVELOPMENT OF THE PRESS MOULD DESIGN AND MANUFACTURE OF THE SEAL MODEL OF THE UNIVERSAL PREVENTOR
Authors: Mosora Yurii , Deineha Ruslan , Mykhailiuk Vasyl , Faflei Oleh
Published: April 2024

During the development of various designs of products, it is sometimes difficult to conduct preliminary tests of their full-scale models. This is influenced by many factors, including the dimensions of the product, the cost of manufacturing, the complexity of developing specialized laboratory installations, etc. Therefore, product models are used for testing, which are several times smaller than the actual size. One of such products, which is rather difficult to produce in life size and to conduct its research, is the seal of the universal preventer (bag type preventor). However, a reduced model was created to study its characteristics. For this, a popular today's method of manufacturing products was used - 3D printing, with the help of which both the gasket inserts and the mold for its casting were made. Silicone SKR-788 is used as a material for pouring the sealant. In the following studies of the design of the seal of the bag type preventor, it is planned to carry out a series of simulations of the fragments of the seal with different geometric shapes and sizes of inserts in order to determine their optimal options. To confirm the obtained results of simulation modeling, laboratory tests will be conducted on the installation for researching the design of universal preventer seals.
COMPLEX ONTOLOGICAL AND NEURAL NETWORK MODELS OF PHOTOGRAPHIC IMAGES
Authors: O. Halushka , V. Shynkarenko
Published: April 2024

This article explores an innovative approach to developing computer vision systems, based on the deep integration of complex ontological and neural network models for effective analysis of photographic images. This work proposes a novel hybrid method in the context of contemporary challenges associated with image recognition, such as a high diversity of classes and problems with the occlusion of objects in low-quality photos. This method provides computer vision models with a deeper understanding of the context and semantics of images, utilizing ontological structures to represent visual content. The analytical process includes the identification of key objects in the image and the determination of their ontological context, allowing neural networks to effectively perform a gradient transformation of the input data for more accurate recognition and classification. The proposed model demonstrates the potential for gaining an advantage over traditional methods in computer vision tasks, opening new possibilities for expanding computer vision applications in scientific, industrial, and domestic spheres.
APPLYING OF HYBRID EVOLUTIONARY METHOD BASED ON PARTICLE SWARM AND ARTIFICIAL IMMUNE SYSTEM SIMULATION IN OPTIMIZATION PROBLEMS
Authors: Ziborov Illia , Zheldak Timur
Published: April 2024

A hybrid evolutionary method for solving conditional and unconditional optimization problems in a continuous space based on a swarm of particles and simulation of the HIPSO artificial immune system is considered. Using the method, 30 test problems were solved in a 25-dimensional real space. The results are compared with other known evolutionary methods. It is shown that the method reliably solves 90% of test problems, while in 67% of cases it finds the global optimum faster than competing methods. It is experimentally proven that the proposed method finds the best solution with an error of up to 2.6% on a wide range of real problems with a probability greater than 0.813.
DEVELOPMENT OF THE STEPPER MOTOR CONTROL SYSTEM OF THE TRAINING TRANSPORT LINE
Authors: Rybalchenko Maria , Egorov Oleksandr , Manachyn Ivan , Rybalchenko Stanislav
Published: April 2024

Stepper motors have long been successfully used in a variety of industrial and special equipment. The advantage of stepper motors is that a high degree of motion control can be achieved. Stepper motors are controlled using microprocessor systems. However, in this case, the stepper motor is controlled by the program loaded into the microcontroller. There is often a need to dynamically change the operation parameters of the stepper motor - speed of rotation, direction and magnitude of the angle of rotation, etc. The work is devoted to the development of the stepper motor control system of the educational transport line, implemented at the Department of Automation of Production Processes of the Ukrainian State University of Science and Technology. The system allows you to dynamically change system parameters using either a personal computer (PC) by sending the appropriate commands to the system via the COM port, or by using a tablet by sending the appropriate commands to the system via Bluetooth. Such a system can be used both in the educational process to practice standard stepper motor control techniques and microcontroller programming skills, and in industrial systems that require high-precision mechanism position control.
CURRENT STATE OF USE OF ELECTRONIC DIGITAL SIGNATURE
Authors: V. Kharun
Published: April 2024

During the first months of Russia's full-scale invasion of Ukraine, the incomes of many enterprises plummeted practically to zero. However, businesses endured, and over the following 15 months, Ukraine saw the emergence of 41,000 new companies and 318,000 individual entrepreneurs. For individuals and legal entities, the use of electronic document workflow in war conditions has become the most convenient and modern format of communication with regulatory authorities. Since January 1, 2022, using fiscal cash registers (FCR) and programmed fiscal cash registers (PFCR) has become mandatory, leading to a sharp increase in the number of issued electronic signature certificates. Despite the state of war in Ukraine, further growth in their number can be anticipated, thus contributing to the further development of electronic document workflow.
STUDY OF THE EFFECT OF MODIFICATION WITH HIGHLY DISPERSED SILICON CARBIDE ON THE DENSITY AND MACROSTRUCTURE OF CASTINGS FROM THE SECONDARY ALLOY OF THE AL-SI SYSTEM UNDER DIFFERENT THERMOPHYSICAL SOLIDIFICATION CONDITIONS
Authors: Vadim Seliverstov , Yurii Dotsenko , Tatjana Selivyorstova , Volodymyr Gladkikh
Published: April 2024

The study analyzes the impact of modifying a secondary aluminum casting alloy of the Al-Si system with high-dispersion silicon carbide on the density of the metal and the macrostructure of cylindrical castings. It was found that the solidification rate and the structure of the metal depend on the type of mold (metal or sand-clay) and the amount of added SiC. Alloys with a 0.1% SiC addition, cast in a metal mold, have the highest density. The macrostructure of SiC-modified castings is characterized by the presence of deep shrinkage cavities and concentrated porosity. Castings poured into a sand-clay mold with SiC modification show concentrated shrinkage and gas pores, which corresponds to a low grade on the reference scale. The study highlights the importance of choosing the casting method and alloy modification to optimize the density and structure of the castings.
D-limonene combined with Bacillus thuringiensis against Spodotera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae)
Authors: Omura Sérgio Shigueo , Silva Sérgio Macedo , Barbosa Paulo Roberto Ramos , Assis Raissa Alves Duarte
Published: April 2024

Focusing on alternatives for better control of S. frugiperda, research has proven the efficiency of using natural compounds to reduce the emergence of resistance. Consequently, the combination of different modes of action of natural insecticide, capable of enhancing the action of each molecule, promoting a barrier to the pest resistance. So, this work evaluated the toxicity of d-limonene associated with entomopathogenic microorganisms against S. frugiperda. A population of caterpillars was assembled in the laboratory to conduct in vitro toxicity assays. A range of insecticide dilutions was carried out and then applied to larvae, with the aim of obtaining the dose-response curve. After determining the lethality of each product and aiming to determine the synergistic potential between them, several binary combinations were established. D-limonene essential oil promoted high mortality of caterpillar at very low concentrations, and the subspecies of bacilli used ensured high caterpillar mortality. However, the strain of B. bassiana used promoted caterpillar mortality only at a very high dose. B. bassiana + d-limonene presents synergistic properties with very high toxicity to S. frugiperda. B. thuringiensis + d-limonene, although resulting in toxicity for larvae, does not appear to be synergistic.
Análise de técnicas de amostragem geoestatística
Authors: Sousa Ícaro Viterbre Debique , Magalhães Júnior Antonio Mendes , Manoel Iuri dos Santos , Sousa Heron Viterbre Debique , Silva Alessandro Leonardo da , Moraes Gisele Pereira , Gontijo Marcelo Robert , Gomes Ana Flávia Oliveira
Published: April 2024

Em geoestatística o método de amostragem é um fator que influencia no resultado dos mapas de krigagem. Utilizar a amostragem aleatória ou sistemática, apesar de comumente resultar em ajuste de semivariograma com o mesmo modelo, causa diferenças entre seus parâmetros. Comparando as duas técnicas de amostragem foi possível observar os resultados dos mapas na mesma região e determinar que o uso da amostragem sistemática com auxílio de submalhas auxilia no controle de outliers espaciais e é o ideal para detectar todos os níveis de dependência espacial.
Sistema de gestión ambiental y la sostenibilidad turística en Cerro Azul, Cañete-Lima 2021
Authors: Céspedes Liz Rocío Vega
Published: April 2024

La presente investigación tiene como objetivo determinar la influencia del Sistema de Gestión Ambiental en la sostenibilidad turística en el distrito de Cerro Azul, debido al insuficiente presupuesto económico para la gestión y conservación de los recursos turísticos, perdiéndose así las potencialidades de los lugares turísticos sostenibles, siendo para el distrito de Cerro Azul el turismo una oportunidad para afrontar los retos en el desarrollo social, económico y sostenible. La investigación fue de tipo aplicada, de método hipotético deductivo, a nivel descriptivo, con diseño no experimental – transversal, realizándose la recolección de información a través de encuestas, artículos científicos, revisión documentaria, así como instrumentos informáticos (ARGIS, SPSS).
Deformidade de bico em dois espécimes de peito-pinhão Castanozoster thoracicus (Nordmann, 1835) (Passeriformes: Thraupidae) no Parque Nacional do Itatiaia, Sudeste do Brasil
Authors: Ortúzar-Ferreira Carlos Nei , Lima Stanley Nobre , Gredilha-Duarte Rodrigo
Published: April 2024

A documentação científica de aves neotropicais portando aberrações anatômicas em seus bicos é escassa, tendo um maior número de registros, aves de regiões temperadas. Entre os anos de 2017 a 2018, foram realizadas por nós, algumas incursões ao Parque Nacional do Itatiaia, com objetivo de inventariar a fauna parasitária de aves silvestres. Para obter nossa amostragem, foram utilizadas redes de neblina para a captura das aves. No entanto, durante algumas dessas expedições, encontramos dois achados inesperados de deformidade de bico. Sendo assim, no presente estudo, é apresentado a ocorrência de deformidade de bico em dois indivíduos de Castanozoster thoracicus (Nordmann, 1835) oriundos do Parque Nacional do Itatiaia. Contudo, apesar deste obstáculo, ambas as aves se encontravam em boas condições de saúde.
Diagnóstico de los sistemas de tratamiento de agua cruda para consumo humano acueductos veredales de la subregión PDET Macarena - Guaviare
Authors: Rodríguez René Ricardo Cuéllar , Osorio Víctor Mauricio Maldonado , Hernández Luz Dary Pedraza , Moreno María Zolangela
Published: April 2024

Aunque el acceso al agua potable y la gestión de vertimientos forman parte de las metas de los objetivos de desarrollo sostenible, específicamente la meta de agua limpia y saneamiento, encontrándose retrasos en los avances en comunidades rurales que han quedado inmersas en regiones antes inaccesibles por el conflicto armado y no han recibido atención por parte del gobierno.
Se evaluó el Índice de Riesgo de Calidad y el Índice de Riesgo Municipal para el Abastecimiento de acueductos comunales, encontrándose que el primero reporta un riesgo sanitario entre medio e inviable, y el segundo un riesgo alto, respectivamente.