bluuebunny/crossref_metadata_2025 huggingface dataset:
DISTRIBUIÇÃO DA LEUCEMIA MIELOIDE CRÔNICA NA POPULAÇÃO AMAZONENSE
Authors: Nascimento Mylenna Oliveira do , Marques Vitória Carolina Rodrigues , Nascimento Bruno Eduardo Feitosa do , Cordeiro Jady Shayenne Mota , Sampaio Vanderson de Souza , Santos Rafaella Oliveira dos , Tarragô Andréa Monteiro , Abreu Rosângela Santos de
Published: December 2024

Este estudo investigou a distribuição e o perfil epidemiológico da Leucemia Mieloide Crônica (LMC) no estado do Amazonas, utilizando dados de 175 pacientes atendidos pela Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (FHEMOAM) entre 2011 e 2020. Os resultados revelaram uma maior prevalência da LMC em homens e pacientes de mais de 50 anos, sendo que 76,57% dos casos concentram-se na capital, Manaus, onde estão centralizados os serviços especializados. Entre os pacientes, 23,43% apresentavam comorbidades, especialmente hipertensão e diabetes. Em áreas remotas, como Itapiranga e Eirunepé, observou-se elevada incidência da doença, enquanto em São Gabriel da Cachoeira apresentou maior taxa de mortalidade. A infraestrutura limitada de saúde e a dependência de transporte fluvial dificultam o acesso ao diagnóstico precoce e ao tratamento para pacientes de municípios distantes. Uma pesquisa aponta a necessidade de descentralização dos serviços de saúde, fortalecimento da infraestrutura e programas de educação em saúde para reduzir as disparidades regionais no enfrentamento da LMC no Amazonas.
ACOLHIMENTO NA ATENÇÃO BÁSICA À MULHER VÍTIMA DE VIOLÊNCIA SEXUAL
Authors: Santos Emmanuelle Alves , Lemos Isabella Maria da Silva , Melo Isabelle Teixera Curi de , Souza Isadora D’arc Davi de , Costa Kamila Valleska da , Nogueira Tereza Maria Barbosa , Bushatsky Magaly , Dourado Ana Claudia Amorim Gomes
Published: December 2024

Segundo a Organização Mundial de Saúde (OMS), a violência sexual contra a mulher é um grave problema de saúde pública que gera impactos biopsicossociais severos para a vítima. Tendo em vista que a atenção básica é a porta de entrada do Sistema Único de Saúde, houve a necessidade de compreender qual o acolhimento que é prestado na Atenção Básica à mulher vítima de violência sexual. Foi realizada uma revisão integrativa da literatura, onde foram analisados 10 artigos publicados entre os anos de 2018 e 2022, selecionados através de critérios preestabelecidos de inclusão e exclusão. Os resultados da pesquisa indicaram lacunas graves na formação dos profissionais de saúde, além da ausência de protocolos unificados e fluxogramas voltados para o encaminhamento da vítima para outros setores. Além destes pontos, foi identificado que a maioria das vítimas não faz a denúncia e não procede com os trâmites legais, devido medo do agressor, vergonha e anseio de ser revitimizada pelos profissionais dos serviços de saúde e da justiça. Também foi constatado que pandemia da COVID-19 impactou diretamente no aumento dos casos de violência doméstica e sexual devido ao isolamento social. Estudos apontam a falta de capacitação dos profissionais da saúde que atuam na atenção básica, como um dos principais fatores que dificultam a identificação e o manejo adequado dos casos, muitas vezes gerando revitimização das mulheres.
CRISE HÍDRICA NO LITORAL PAULISTA: UMA SEQUÊNCIA DIDÁTICA COM FOCO CTSA NO ENSINO MÉDIO DE UMA ESCOLA ESTADUAL EM SÃO VICENTE
Authors: Almeida Roberto Silva de
Published: December 2024

O trabalho explora a crise hídrica no litoral paulista, com foco em São Vicente, abordando suas causas, consequências e implicações para o ensino de química no Ensino Médio, integrando o enfoque CTSA. A pesquisa foi motivada pela urbanização desordenada (o bairro foi construído em um mangue), aumento populacional e mudanças climáticas, que agravam a escassez hídrica na região. Alinhado às diretrizes do Currículo Paulista e à BNCC, o estudo propôs uma sequência didática para fomentar a compreensão crítica dos alunos sobre o tema, promovendo educação ambiental e cidadania responsável, em consonância com a Agenda 2030. Metodologicamente, adotou-se uma abordagem qualitativa, utilizando análise bibliográfica, questionários, observação em sala de aula, produção discente e experimentação prática. A pesquisa envolveu 16 alunos da Escola Estadual Antônio Luiz Barreiros, que participaram da construção de filtros caseiros e da elaboração de um blog, promovendo protagonismo juvenil e habilidades digitais. Os resultados evidenciaram o engajamento dos alunos, destacando-se na construção dos filtros, com um grupo alcançando os critérios de potabilidade. Entretanto, dificuldades no letramento digital e no domínio de conceitos relacionados à sustentabilidade apontaram para a necessidade de maior suporte pedagógico. A troca de experiências entre os grupos durante os experimentos enriqueceu a aprendizagem coletiva. O trabalho conclui que a sequência didática contribuiu para a conscientização ambiental dos alunos, sugerindo ajustes futuros, como maior apoio para atividades digitais e incentivo à pesquisa prévia. Essas adaptações visam tornar a abordagem mais eficaz e aplicável a diferentes contextos, reforçando o papel da educação como ferramenta para enfrentar desafios socioambientais.
A IMPORTÂNCIA DOS CUIDADOS DE ENFERMAGEM NA QUALIDADE DE VIDA DOS PACIENTES RENAIS CRÔNICOS SUBMETIDOS À HEMODIÁLISE
Authors: Silva Natanny Nayara Sousa da , Silva Karine Araújo da , Sousa Deividson Luan Rodrigues de , Sales Cleomirtes da Silva
Published: December 2024

Trata-se de investigar a influência dos cuidados de enfermagem na qualidade de vida e na saúde geral de pacientes renais crônicos submetidos à hemodiálise. A pesquisa se propõe a compreender a fundo os fatores que contribuem para um assistência de enfermagem mais eficaz e centrada no paciente em contextos de hemodiálise.METODOLOGIA: Este é um estudo analítico que emprega a técnica da Revisão Integrativa da Literatura. A busca foi realizada nas bases de dados da Biblioteca Virtual de Saúde (BVS): SCIELO, MEDLINE, BDENF e LILACS, utilizando a combinação de três DeCS com o operador booleano “AND”: “Hemodiálise” AND “Transplante renal” AND “Qualidade de vida”. RESULTADOS: Inicialmente, foram identificados 52 artigos nas bases de dados. Após a aplicação dos critérios de inclusão, esse número foi reduzido para 28. Após uma análise detalhada, 17 publicações foram escolhidas para integrar esta pesquisa.CONCLUSÃO: Assim, para garantir o sucesso da terapia, é fundamental contar com profissionais capacitados que colaborem com a equipe multiprofissional, os pacientes e suas famílias, visando reduzir as complicações e melhorar a qualidade de vida dos pacientes em hemodiálise.
INDUSTRIA 4.0: UMA PROPOSTA PARA IMPLEMENTAÇÃO EM UMA EMPRESA METAL MECÂNICA NO POLO INDUSTRIAL DE MANAUS
Authors: Pereira Danilo Serrão , Guimarães Gil Eduardo , Filho Nelson Marinelli , Correa Geraldo Nunes , Trevisol Janyel
Published: December 2024

INTRODUÇÃO: A Indústria 4.0, considerada a Quarta Revolução Industrial, introduz uma transformação abrangente no setor produtivo, marcada pela integração de tecnologias avançadas que conectam o ambiente físico e digital. Com o uso de sistemas ciber-físicos, Internet das Coisas (IoT), big data e inteligência artificial (IA), a Indústria 4.0 possibilita operações automatizadas e inteligentes, viabilizando a produção em tempo real, flexibilidade, e otimização de recursos. Essa revolução impacta especialmente setores de produção de alta complexidade, como o setor metal-mecânico, essencial para indústrias estratégicas, incluindo automotiva, aeronáutica e de eletrônicos (STAUFFER et al., 2020).
AS FOSSAS NAS CALÇADAS NA CONSTRUÇÃO DO CENÁRIO URBANO DE ARAGUAÍNA – TOCANTINS
Authors: Pereira Aires José , Macedo Luís Otávio Bau , Soares Beatriz Ribeiro
Published: December 2024

Este artigo discute a problemática das fossas nas calçadas de Araguaína como fazendo parte da construção do cenário urbano da cidade, ora por falta/ausência do poder público em atender as necessidades básicas da população, ora pela “esperteza” cultural da população que “aproveitando” da falta de fiscalização municipal, também corrobora no sentido do desarranjo organizacional da produção espacial. Ou ainda, as duas hipóteses ao mesmo tempo, perfazendo o cenário construído e a ser construído paulatinamente com as sutilezas culturais do lugar. Mesmo porque, a problemática não escolhe “classe social” em sua existência enquanto tal. Quer dizer, tanto a pessoa de baixo poder aquisitivo, quanto à pessoa de alto status social, usa do artifício das fossas nas calçadas como falta de rede de esgotamento e tratamento sanitário e/ou afirmando que seus terrenos são pequenos e que, portanto, na “cabem” as fossas dentro deles e/o ainda que ao pagar para a limpa fossa retirar seus dejetos, fica mais barato na calçada que dentro do terreno. São discursos que perpassam as classes sociais que produzem o espaço urbano da cidade de Araguaína – TO.
REPRESENTAÇÕES SOCIAIS DO USO DE MEDICAMENTOS PARA O TRABALHO DO PROFESSOR SEGUNDO DOCENTES DO ENSINO FUNDAMENTAL DA REDE MUNICIPAL DE PETRÓPOLIS – RJ
Authors: Resende Lívia Carvalho da Fonseca , Collares-da-Rocha Julio Cesar Cruz
Published: December 2024

Daily, teachers are faced with situations of violence and demands in the school environment, in addition to the devaluation of the teaching work. These issues seem to produce more and more psychic suffering and, consequently, lead to the use of medication by some teachers. The objective of our research was to identify the social representations (SR) of the use of medication for the work of teachers according to elementary school teachers from the municipal network of Petrópolis - RJ. The study was carried out based on the theory of social representations (SRT), developed by Serge Moscovici, and on the central core theory (TNC), proposed by Jean-Claude Abric. 200 elementary school teachers who work in the municipal education network of that city participated in the research. As an instrument, we used a questionnaire that included a free association test, whose inducing term was 'use of medication for the teacher's work', in addition to exploratory questions on the theme and characterization of the participants. The data from this research were submitted to prototypical analysis, through the use of the EVOC 2005 software, in addition to descriptive analysis of the other data. The probable central core (NC) of the use of medications for the teacher's work included cognitions related to considering their use necessary (necessary) and to mental disorders and physical/mental symptoms (sadness, tiredness, anxiety and stress). The difficulties of the teaching work seem to be producing psychic suffering, and this is being increasingly medicalized.
O PAPEL DA CRÍTICA GASTRONÔMICA NA ESCOLHA DO CONSUMIDOR: CONTRIBUIÇÕES E INFLUÊNCIAS
Authors: Santos Adelcio Machado
Published: December 2024

Food criticism, traditionally carried out by experts in the field, has been transformed with the advent of digital platforms, allowing ordinary consumers to share their experiences and influence purchasing decisions. This study aims to analyze how gastronomic criticism, both professional and consumer, influences food choices and what are the main contributions of this practice to the gastronomy sector. The methodology adopted involves a literature review and analysis of review content on platforms such as TripAdvisor, Google Reviews, and social networks, in addition to considering different types of reviews, such as those from influencers and food bloggers. The results point out that online reviews play a significant role in consumers' decision-making, with lay opinions gaining more and more relevance, although they have limitations compared to specialized reviews. The study also highlights the growing influence of digital influencers, who, while helping with the visibility of establishments, often compromise the fairness of reviews. It is concluded that, although the modern consumer has become more protagonist in the dissemination and use of gastronomic criticism, the lack of a critical approach to the available information can lead to automated and impulsive choices. Therefore, it is essential that the consumer develops a more conscious and responsible reading of criticism for a more balanced use of this instrument.
GOOD AGRICULTURAL PRACTICES IN THE PRODUCTION OF NILE TILAPIA (OREOCHROMIS NILOTICUS) IN A SIMPLE RECIRCULATION SYSTEM IN URBANIZED AREAS
Authors: Palmeira Bárbara Vasconcelos , da Silveira Neto Osvaldo José , Taveira Rodrigo Zaiden , da Rocha Laudicéia Oliveira , Silva Lara Palhano
Published: December 2024

The growth of Brazilian fish farming was due to the considerable increase in fish consumption, especially tilapia, which continues to be the most produced fish in the country, representing 65.3% of the total national aquaculture production. What was necessary was the search for the application of good agricultural practices in the production of Nile tilapia in alternative systems that produce with high density and work to reduce waste discarded in the tributaries. Thus, the study examines the implementation of biosecurity measures in simple recirculation systems, which through the biofilter reuses the same water during cultivation. These measures are necessary to ensure the health and well-being of the fish, as well as food safety. Based on a comprehensive literature review and field research, recommended practices for the installation and operation of these systems are analyzed, including the selection of suitable locations for solar incidence control, the performance of quarantine periods for monitoring clinical signs in fish lots, the regular clinical evaluation of fish, the continuous monitoring of water quality, the implementation of good management practices and the responsible use of medicines, when necessary. The results highlight the importance of these practices to prevent the introduction and spread of pathogens, as well as to promote the sustainability and economic viability of aquaculture production in urbanized environments. The dissertation contributes to the advancement of knowledge in the area and provides practical guidelines for producers and managers of Nile tilapia production systems in urban areas.
Neoliberalismo e as reformas do século XXI: o impacto na educação brasileira
Authors: Fonseca Dantas Diego
Published: December 2024

O tema deste ensaio é fomentar uma revisão crítica do neoliberalismo e seus impactos nas políticas públicas do Brasil, incluindo aí, a cultura educacional. O discurso de Friedman e de seus discípulos filiados a Escola de Chicago evidenciam, a partir dos anos 1970, a total desmoralização da escola como espaço de saber e de formação humana, rebaixando-a à condição de mercadoria. Neste sentido, é deliberada e consciente e não aleatória, a exposição dos problemas materiais da escola, como fosse algo estrito apenas da responsabilidade direta da instituição, esquecendo conscientemente que muitas vezes àquela realidade é decorrente de conjunturas de ajuste fiscal e de crise econômico-financeira. Há a tentativa e decerto com sucesso na consciência de muitas pessoas de que a escola está apartada da sociedade e do Estado. Tudo se resume à questão da gestão. Porém, a característica perversa atrelada ao ideário do Estado Mínimo neoliberal se mostra principalmente quando examinamos, mas no sentido inverso do exposto, a manutenção do padrão de pobreza e de impossibilidades historicamente imposto às classes populares.
Ética na pesquisa científica: reflexões sobre o plágio
Authors: Lopes Mario Marcos , Costa Luan Brenner da
Published: December 2024

O plágio na pesquisa científica é uma questão ética e legal que demanda atenção e medidas preventivas. Este resumo explora suas diferentes formas, incluindo cópia literal, apropriação de ideias, autoria múltipla não declarada e autoplagiação, destacando suas implicações éticas e legais. O plágio pode ser intencional ou não, mas em ambos os casos compromete a integridade intelectual e os princípios fundamentais da produção do conhecimento. Causas como a pressão por produtividade, falta de orientação adequada e cultura de impunidade facilitam sua ocorrência, enquanto fatores psicossociais, como a ética situacional, podem distorcer a percepção sobre o que constitui plágio. As consequências do plágio são severas, afetando a credibilidade da pesquisa científica, desvalorizando o mérito intelectual e prejudicando a reputação de pesquisadores e instituições. Além disso, implicações legais e sanções, que vão desde a retratação do trabalho até a exclusão do autor da comunidade acadêmica, podem ser aplicadas. Estratégias de prevenção e combate incluem a promoção da ética desde a formação básica, orientação adequada, uso de tecnologias de detecção de plágio e criação de políticas institucionais claras. Uma cultura de integridade e responsabilidade também é essencial para promover a honestidade acadêmica e garantir a credibilidade da pesquisa científica.
CONCEPÇÃO DE DOCENTES E DISCENTES DA ÁREA DE EDUCAÇÃO EM CIÊNCIAS ACERCA DO PLÁGIO
Authors: Nunes Rose Cristina Alves , Dutra Carlos Maximiliano
Published: December 2024

Este estudo visa realizar a identificação, quanto as noções de docentes e discentes da área de Educação em Ciências acerca da temática do plágio acadêmico e suas interfaces. A coleta de dados ocorreu por meio de questionário aberto, obtendo a participação de 15 pesquisadores. O tratamento dos dados foi realizado a partir da definição de três categorias semânticas: a) Plágio acadêmico; b) Metodologia científica na pesquisa; e c) Medidas disciplinares ao plágio. As respostas denotaram que a maioria afirma ter realizado cópias indevidas na Educação Básica. Um determinado grupo concorda em ter feito duplicidades impróprias de textos durante a graduação, apesar da maioria ter recebido orientações com informações sobre o plágio e seus diferentes formatos. Em sua totalidade definem o conceito de plágio, um número significativo utiliza ferramentas antiplágio, além de afirmarem terem recebido subsídios sobre medidas disciplinares de coibição ao plágio e orientações sobre possíveis sanções no Programa de Pós-Graduação ao qual pertencem. Sendo importante ressaltar o quanto a divulgação e orientação, devem ser preconizados e priorizados no contexto acadêmico, por meio de diferentes frentes de combate, para que o plágio seja contido, antes de suas possíveis ocorrências.
La clasificación de tumores de pulmón: Impacto de los avances genéticos, clínicos y radiológicos en Ecuador
Authors: Lema Balla Juan Carlos , Alajo León Nataly Carolina , Heredia Tapia Lesly Tamara , Pilalumbo Choloquinga Edwin Rubén , Lema Balla José Roberto
Published: December 2024

El cáncer de pulmón sigue siendo una de las principales causas de mortalidad a nivel mundial, afectando a millones de personas cada año. Este tipo de cáncer es conocido por su alta agresividad y por diagnosticarse, en muchos casos, en estadios avanzados, lo que reduce significativamente las posibilidades de tratamiento curativo. La Organización Mundial de la Salud (OMS) ha actualizado su clasificación de tumores de pulmón en 2024, incorporando importantes avances en los campos de la genética, la clínica y la radiología. Esta nueva clasificación tiene como objetivo mejorar el diagnóstico, tratamiento y pronóstico de los pacientes con cáncer de pulmón. Este artículo se enfocará en el impacto de estos avances y ofrecerá una visión detallada de la epidemiología global, en América Latina y en Ecuador. Para la elaboración de este artículo, se consultaron los informes más recientes de la OMS, así como estudios publicados en las bases de datos Scopus y Web of Science. Se incluyeron artículos que proporcionan datos actualizados sobre la clasificación de tumores de pulmón, así como estudios epidemiológicos relevantes, que permitieron la identificación de subtipos de tumores de pulmón basados en perfiles genéticos específicos.
Plan de responsabilidad social empresarial y ventaja competitiva en microempresas, Comuna San Pedro, Año 2024
Authors: Suárez González Pedro , Reyes Tomalá Lorena
Published: December 2024

El presente artículo tiene como objetivo diseñar un plan de responsabilidad social empresarial (RSE) como herramienta de ventaja competitiva en las microempresas de la Comuna San Pedro, año 2024. Partiendo de una revisión teórica sobre los conceptos, evolución y beneficios de la RSE, se diagnosticó la situación actual de las microempresas respecto a la implementación de estas prácticas, logrando identificar bajos niveles de aplicación en las dimensiones económica, social y ambiental. El estudio adoptó un enfoque exploratorio-correlacional, empleando encuestas para la recopilación de datos y el software estadístico IBM SPSS v.25 para su análisis y tratamiento. Los resultados mostraron una correlación positiva y significativa muy fuerte (,0776; p<0.001) entre el plan de RSE y la ventaja competitiva, confirmando la relevancia de la RSE como herramienta para conseguir la ventaja competitiva.  A partir de los hallazgos, se diseñó una propuesta de plan de RSE adaptado a los recursos limitados y escasos conocimientos de las microempresas, con acciones específicas en sostenibilidad financiera, fortalecimiento del capital humano y reducción del impacto ambiental. A través de este plan no solo se busca la obtención de ventaja competitiva, sino que también busca promover el desarrollo sostenible de la comunidad local. Se concluye que la implementación de un plan de RSE representa una oportunidad importante para las microempresas al equilibrar sus objetivos en las tres dimensiones de la RSE. Además, los hallazgos sugieren la necesidad de realizar investigaciones futuras para evaluar los efectos de la RSE a largo plazo y su impacto en diferentes sectores microempresariales.
Perturbed weighted trapezoid inequalities for convex functions with applications
Authors: Dragomir Sever Silvestru , Kikianty Eder
Published: December 2024

We consider trapezoid type inequalities for twice differentiable convex functions, perturbed by a non-negative weight. Applications on a normed space \( (X, \lVert \,\cdot\, \rVert) \) are considered, by establishing bounds for the term
\[ \begin{multline*} \frac{1}{2} \left[\lVert \frac{x+y}{2} \rVert^p + \frac{\lVert x \rVert^p + \lVert y \rVert^p}{2} \right] - \int_{0}^{1} \lVert (1-t)x + ty \rVert^p \, dt, \\ x, y \in X \end{multline*} \]

which can be seen as a combination of both the midpoint and the trapezoid \(p\)-norm (with \(2\leq p<\infty\)) inequalities.
Steffensen-like method in Riemannian manifolds
Authors: Prasad Chandresh , Parida P. K.
Published: December 2024

In this paper, we present semilocal convergence of Steffensen-like method for approximating zeros of a vector field in Riemannian manifolds. We establish the convergence of Steffensen-like method under Lipschitz continuity condition on first order covariant derivative of a vector field. Finally, two examples are given to show the application of our theorem.
SELF-FOCUSING AND SELF-CHANNELING OF POWERFUL FEMTOSECOND LASER PULSES IN A FLUCTUATING OPTICAL MEDIUM
Authors: Землянов А.А. , Минина О.В.
Published: December 2024

На основе дифракционно-трубочной концепции самофокусировки мощного лазерного излучения в оптических средах рассмотрено решение следующих задач. Во-первых, исследован режим самоканалирования мощных фемтосекундных лазерных импульсов в слабофлуктуирующих средах с керровской нелинейностью. Вовторых, исследовано влияние сильных флуктуаций диэлектрической проницаемости среды на самофокусировку фемтосекундного лазерного излучения.

Based on the diffraction-tube concept of self-focusing of high-power laser radiation in optical media, the solution of the following tasks is considered. First, the self-channeling mode of high-power femtosecond laser pulses in weakly fluctuating media with Kerr nonlinearity is investigated. Secondly, the effect of strong fluctuations in the dielectric constant of the medium on the self-focusing of femtosecond laser radiation has been studied.
LABORATORY MODEL OF A DEVICE FOR STUDYING THE SPATIAL STRUCTURE OF SUPERSONIC CURRENTS
Authors: Маракасов Д.А. , Сухарев А.А. , Герасимова Л.О.
Published: December 2024

В докладе представлено описание лабораторного макета для бесконтактного исследования пространственной структуры аксиально симметричных сверхзвуковых течений. Макет позволяет восстанавливать распределение средней плотности воздуха и интенсивности пульсаций на частотах дискретных тонов (при наличии) в потоке. Процесс измерения основан на оценке статистических характеристик фазовых искажений (направления распространения) просвечивающего лазерного пучка посредством массива высокочастотных позиционно-чувствительных фотодетекторов. Представлены результаты тестовых экспериментов по просвечиванию сверхзвуковых струй и модельных огненных смерчей.

The report describes a laboratory model for non-contact investigation of the spatial structure of axially symmetric supersonic flows. The layout allows you to restore the distribution of the average air density and intensity of pulsations at the frequencies of discrete tones (if any) in the stream. The measurement process is based on an assessment of the statistical characteristics of phase distortions (propagation directions) of a transmission laser beam by means of an array of high-frequency position-sensitive photodetectors. The results of test experiments on the transmission of supersonic jets and model fire tornadoes are presented.
MONTE CARLO SIMULATION OF THE PROPAGATION OF A LASER PULSE IN AN AQUEOUS LAYER
Authors: Пригарин С.М. , Ань Ч. , Миронова Д.Э.
Published: December 2024

Методом Монте-Карло изучаются особенности распространения лазерных импульсов в водном слое с учетом многократного рассеяния излучения, отражения от подстилающей поверхности и поверхности раздела вода-воздух. Исследуется влияние альбедо подстилающей поверхности и характеристик взволнованной морской поверхности на кольцеобразные световые структуры, возникающие в результате рассеяния лазерных импульсов.

The Monte Carlo method is used to study the features of the propagation of laser pulses in an aqueous layer, taking into account the multiple scattering of radiation, reflection from the underlying surface and the water-air interface. The influence of the albedo of the underlying surface and the characteristics of the agitated sea surface on the ring-shaped light structures resulting from the scattering of laser pulses is investigated.
MEASUREMENTS OF BACKSCATTERING SIGNALS OF CO2 LASER RADIATION BY AN AQUEOUS AEROSOL WITH MINERAL AND ORGANIC IMPURITIES
Authors: Климкин А.В. , Коханенко Г.П. , Кураева Т.Е. , Куряк А.Н. , Осипов К.Ю. , Пономарев Ю.Н.
Published: December 2024

В настоящей работе приводятся результаты стендовых экспериментов по регистрации сигналов обратного рассеяния излучения CO2-лазера перестраиваемого дискретно по линиям генерации R и P ветвей в диапазоне 9.4-10.6 мкм. Измерения проводились с водным аэрозолем с растворенными в нем веществами. Определены характерные особенности регистрируемых спектров в зависимости от типа растворенного вещества. Показано, что регистрируемые спектры обратного рассеяния излучения СО2 лазера водным аэрозолем с содержанием органических веществ имеют заметные различия от спектров водного аэрозоля с неорганическими добавками.

This paper presents the results of bench experiments on the registration of backscattering signals of CO2 laser radiation tunable discretely along the generation lines of R and P branches in the range of 9.4-10.6 microns. The measurements were carried out with an aqueous aerosol with substances dissolved in it. The characteristic features of the recorded spectra are determined depending on the type of solute. It is shown that the recorded spectra of backscattering of CO2 laser radiation by an aqueous aerosol containing organic substances have noticeable differences from the spectra of an aqueous aerosol with inorganic additives.
STATISTICAL MODELING OF IMAGE FORMATION IN VISION SYSTEMS WITH STROBING IN A CLOUDY ENVIRONMENT
Authors: Тарасенков М.В. , Белов В.В. , Пешков С.А. , Познахарев Е.С.
Published: December 2024

В работе рассматривается алгоритм моделирования переноса излучения в атмосфере при использовании активной системы виденья со стробированием. Данный тип систем имеет широкое применение для наблюдения объектов в атмосферной и водной средах в условиях высокой мутности. В большинстве существующих систем виденья со стробированием не выполняется атмосферной коррекции изображений. При этом даже при использовании стробирования часть рассеянного излучения дает вклад в принимаемое изображение. Выполнение атмосферной коррекции способно улучшить качество изображения.

The paper considers an algorithm for modeling radiation transfer in the atmosphere using an active vision system with gating. This type of system is widely used for observing objects in atmospheric and aquatic environments in conditions of high turbidity. In most existing vision systems with strobing, atmospheric image correction is not performed. At the same time, even when using gating, some of the scattered radiation contributes to the received image. Performing atmospheric correction can improve image quality.
METHODS OF POST-DETECTION IMAGE PROCESSING TO INCREASE RESOLUTION
Authors: Елизаров А.И. , Кустова Н.В. , Шалеев А.В.
Published: December 2024

В работе представлен обзор методов масштабирования и увеличения разрешения изображений, используемых в системах компьютерного зрения. Актуальность исследования обуславливается широким применением обработки изображений в различных областях, где требуется изменение размеров и улучшение качества изображений. Рассмотрены как классические методы интерполяции, так и более современные подходы, основанные на машинном обучении и нейронных сетях.

The paper provides an overview of the methods of scaling and increasing the resolution of images used in computer vision systems. The relevance of the research is due to the widespread use of image processing in various fields where resizing and image quality improvement are required. Both classical interpolation methods and more modern approaches based on machine learning and neural networks are considered.
MODELING OF PHASE CORRECTION OF A LASER BEAM IN AN ADAPTIVE OPTICAL SYSTEM WITH FINITE SPATIAL AND TEMPORAL RESOLUTION
Authors: Богачев В.А. , Волков М.В. , Стариков Ф.А. , Шнягин Р.А.
Published: December 2024

Представлены результаты численного моделирования динамической фазовой коррекции лазерного излучения, искаженного турбулентным потоком воздуха, в адаптивной оптической системе (АОС) с датчиком волнового фронта (ДВФ) Шэка-Гартмана. Для управления АОС использовалась ПЛИС, что обеспечивало ширину полосы АОС до 2 кГц. В качестве исходных данных использовалась серия волновых фронтов лазерного пучка, зарегистрированных с помощью быстродействующего ДВФ Шака-Гартмана в условиях искусственно созданной павильонной турбулентности. Проанализировано изменение пространственного и временного спектров фазы лазерного излучения и показано соответствие их колмогоровской статистике. Экспериментально и расчётно показано, что для обеспечения высокой эффективности коррекции волнового фронта частота АОС должна не менее чем в 20 раз превышать νturb.

The results of numerical simulation of dynamic phase correction of laser radiation distorted by turbulent air flow in an adaptive optical system (AOS) with a Shack-Hartmann wavefront sensor (WFS) are presented. A PLD was used to control the AOS, which provided an AOS bandwidth of up to 2 kHz. A series of laser beam wavefronts recorded using a high-speed Shaka-Hartmann WFS under conditions of artificially created pavilion turbulence was used as initial data. The changes in the spatial and temporal spectra of the laser radiation phase are analyzed and their correspondence to Kolmogorov statistics is shown. It has been experimentally and computationally shown that in order to ensure high efficiency of wavefront correction, the frequency of AOS should be at least 20 times higher than vturb.
RADIATION EFFECTS OF CLOUDS OF THE LOWER AND UPPER TIERS IN THE LONG-WAVELENGTH REGION OF THE SPECTRUM OVER THE TERRITORY OF WESTERN SIBERIA
Authors: Насртдинов И.М. , Курьянович К.В. , Журавлева Т.Б. , Скороходов А.В.
Published: December 2024

Представлены модельные оценки потоков длинноволновой радиации для летних условий Западной Сибири в присутствии однослойной сплошной облачности нижнего и верхнего яруса. Характеристики облачности получены на основе статистических моделей по данным многолетних наблюдений с 2010 по 2019 г. Для северной зоны Западной Сибири характерны высокие значения оптической толщины жидкокапельных облаков (10), а для южной – относительно низкие (1,5). Для кристаллической облачности оптическая толщина имеет одинаковое распределение для всей рассматриваемой территории. Больший вклад в длинноволновую составляющую радиационного баланса атмосферы вносят облака нижнего яруса на нижней границе атмосферы, а на уровне верхней границы атмосферы – кристаллическая облачность.

Model estimates of long-wave radiation fluxes for summer conditions in Western Siberia in the presence of single-layer continuous clouds of the lower and upper tiers are presented. The cloud cover characteristics were obtained on the basis of statistical models based on long-term observations from 2010 to 2019. The northern zone of Western Siberia is characterized by high values of the optical thickness of liquid droplet clouds (10), while the southern zone is characterized by relatively low values (1.5). For crystalline clouds, the optical thickness has the same distribution for the entire territory under consideration. Clouds of the lower tier at the lower boundary of the atmosphere make a greater contribution to the long–wave component of the radiation balance of the atmosphere, and crystalline clouds at the level of the upper boundary of the atmosphere.
USING ZERNIKE POLYNOMIALS TO APPROXIMATE THE BEAM PHASE AND FOURIER SERIES TO ANALYZE THE DYNAMICS OF TURBULENT RADIATION DISTORTIONS
Authors: Канев Ф.Ю. , Макенова Н.А. , Грекова Ю.Г.
Published: December 2024

В статье с привлечением методов численного эксперимента выполнен анализ точности разложения фазового экрана, моделирующего турбулентные искажения, в ряд сформированный полиномами Цернике. Представление экрана в виде суммы полиномов позволяет оценить возможность воспроизведения фазы в турбулентной среде адаптивным зеркалом и прогнозировать эффективность коррекции атмосферных искажений. Во второй части статьи приводятся данные, характеризующие возможность разложения параметров лазерного пучка в тригонометрический ряд Фурье. Решение данной задачи позволяет сформулировать требования к быстродействию адаптивной системы, предназначенной для компенсации искажающего воздействия атмосферы на лазерное излучение.

In the article, using numerical experimental methods, an analysis of the accuracy of the decomposition of a phase screen modeling turbulent distortions into a series formed by Zernike polynomials is performed. The representation of the screen as a sum of polynomials makes it possible to evaluate the possibility of reproducing the phase in a turbulent environment by an adaptive mirror and predict the effectiveness of correction of atmospheric distortions. The second part of the article presents data characterizing the possibility of decomposing the parameters of a laser beam into a trigonometric Fourier series. The solution of this problem makes it possible to formulate requirements for the performance of an adaptive system designed to compensate for the distorting effect of the atmosphere on laser radiation.
SPATIAL AND TEMPORAL VARIABILITY OF AEROSOL CHARACTERISTICS IN THE HIGH-LATITUDE EXPEDITION "NORTH POLE – 41"
Authors: Сакерин С.М. , Кабанов Д.М. , Круглинский И.А. , Ризе Д.Д. , Турчинович Ю.С.
Published: December 2024

Обсуждаются результаты измерений характеристик аэрозоля в экспедиции «Северный полюс-41», которая дрейфовала во льдах в широтной зоне 82-89°с.ш. Средние значения характеристик аэрозоля в период с октября 2022 по декабрь 2023 г. составили: концентрации черного углерода – 18 нг/м³; объемы субмикронных частиц – 0,36 мкм³/см³, объемы грубодисперсных частиц – 0,94 мкм³/см³. Полученные характеристики аэрозоля сравниваются с данными многолетних измерений на полярных станциях и в морских экспедициях.

The results of measurements of aerosol characteristics in the North Pole-41 expedition, which drifted in the ice in the latitude zone 82-89°C. The average values of aerosol characteristics in the period from October 2022 to December 2023 were: concentrations of black carbon – 18 ng/m3; volumes of submicron particles – 0.36 mm3/cm3, volumes coarse particles – 0.94 mm3/cm3. The obtained aerosol characteristics are compared with data from long-term measurements at polar stations and in marine expeditions.
ESTIMATES OF THE PERIODICITY OF DAY-TO-DAY VARIATIONS IN AEROSOL CHARACTERISTICS AND THE DURATION OF ABNORMALLY HIGH CONCENTRATIONS IN THE ARCTIC ATMOSPHERE
Authors: Круглинский И.А. , Кабанов Д.М. , Сакерин С.М.
Published: December 2024

С 2007 г. мы проводим ежегодные измерения концентраций аэрозоля и черного углерода в приземном слое арктической атмосферы: в морских экспедициях и на полярной станции "Мыс Баранова" (архипелаг Северная Земля). На основе полученных данных представлены оценки характерных периодов межсуточных вариаций характеристик аэрозоля и продолжительности ситуаций аномально высоких концентраций.

Since 2007, we have been conducting annual measurements of aerosol and black carbon concentrations in the surface layer of the Arctic atmosphere: in marine expeditions and at the Cape Baranova polar station (Severnaya Archipelago Land). Based on the data obtained, estimates of the characteristic periods of day-to-day variations in aerosol characteristics and the duration of situations of abnormally high concentrations are presented.
ESTIMATION OF THE AVERAGE DENSITY FIELD OF SUPERSONIC UNDEREXPANDED JETS FROM EXPERIMENTAL DATA
Authors: Маракасов Д.А. , Сухарев А.А.
Published: December 2024

На основе экспериментальных данных о средних значениях углов горизонтальных отклонений просвечивающих сверхзвуковую струю пучков проведено восстановление радиальных зависимостей средней плотности воздуха в струе. Получены количественные оценки плотности воздуха в аксиально-симметричных струях.

Based on experimental data on the average values of the angles of horizontal deviations of beams transmitting a supersonic jet, the radial dependences of the average density of air in the jet are reconstructed. Quantitative estimates of the air density in axially symmetric jets have been obtained.
ON THE POSSIBILITY OF RECORDING SELF-OSCILLATIONS IN THE CHANNEL OF A SUPERSONIC UNDEREXPANDED JET AT FREQUENCIES OF DISCRETE ACOUSTIC TONES USING OPTICAL SENSING METHODS
Authors: Маракасов Д.А. , Сухарев А.А.
Published: December 2024

В работе показано, что с помощью оптических методов зондирования, а именно, анализе получаемых данных об автоспектрах углов отклонения просвечивающего пучка, возможно однозначное сопоставление частот основного колебания с известными выражениями для частоты первой азимутальной моды основного акустического тона струи. Показано однозначное соответствие узкополосных колебаний угловых отклонений просвечивающего пучка с дискретными акустическими тонами струи.

It is shown that using optical sensing methods, namely, the analysis of the obtained data on the auto spectra of the deflection angles of the transmission beam, it is possible to unambiguously compare the frequencies of the main oscillation with known expressions for the frequency of the first azimuthal mode of the main acoustic tone of the jet. The unambiguous correspondence of the narrowband oscillations of the angular deviations of the transmission beam with the discrete acoustic tones of the jet is shown.
ASSESSMENT OF THE FLUXES OF LEAD, CADMIUM AND ELEMENTAL CARBON FROM THE ATMOSPHERE TO THE COASTAL ZONE OF THE SOUTHEASTERN PART OF THE BALTIC SEA
Authors: Топчая В.Ю.
Published: December 2024

На основании натурных и расчетных данных проведена оценка потоков Pb, Cd и ЭУ с атмосферными осадками в береговую зону юго-восточной части Балтийского моря. Выявлено, что наибольшие значения потоков Pb (11341 мкг м-2 мес-1 ) и Cd (682 мкг м-2 мес-1 ) отмечаются в летний период, а ЭУ – в весенний. Среднегодовой поток за 15-летний период (2008–2022 гг.) для Pb составляет 4,1 кг км-2 год-1 , а для Cd – 0,02 кг км-2 год-1 . Величины потоков Pb по натурным данным на 9% превышают его расчетные показатели (3,8 кг км-2 год-1 ). Поток ЭУ характеризуется существенной сезонной и межгодовой изменчивостью. Максимальная концентрация ЭУ (90,7 мкг/л) и значения его потока (0,69 мг м-2 сут-1 ) зафиксированы в апреле 2021 г.

Based on natural and calculated data, the assessment of the flows of Pb, Cd and EU with atmospheric precipitation into the coastal zone of the southeastern part of the Baltic Sea was carried out. It was revealed that the highest values of Pb (11341 micrograms m-2 months-1 ) and Cd (682 micrograms m-2 months-1 ) fluxes are observed in summer, and EU – in spring. The average annual flow over a 15-year period (2008-2022) for Pb is 4.1 kg km-2 year-1, and for Cd – 0.02 kg km-2 year-1 . The values of Pb fluxes according to natural data are 9% higher than its calculated values (3.8 kg km-2 year-1 ). The EU flow is characterized by significant seasonal and interannual variability. The maximum concentration of EU (90.7 micrograms/l) and its flow values (0.69 mg m-2 day-1) were recorded in April 2021.
DESIGN AND TECHNICAL CHARACTERISTICS OF A THREE-CHANNEL MOBILE LIDAR FOR ATMOSPHERIC GAS ANALYSIS
Authors: Яковлев С.В. , Садовников С.А. , Крючков А.В. , Романовский О.А. , Тужилкин Д.А. , Кравцова Н.С. , Филатов В.В. , Харченко О.В.
Published: December 2024

Представлен технический облик разработанной трехканальной мобильной лидарной системы ИК-диапазона. Экспериментально определены выходные энергетические характеристики лидарных каналов зондирования H2O, CO2, CH4 и зарегистрированы сигналы на выбранных горизонтальных трассах зондирования.

The technical appearance of the developed three-channel mobile lidar system of the IR range is presented. The output energy characteristics of lidar sensing channels H2O, CO2, CH4 have been experimentally determined and signals on selected horizontal sensing routes have been recorded.
FEATURES OF ISOTOPIC COMPOSITION DYNAMICS OF CARBON, CONCENTRATIONS OF ORGANIC AND ELEMENTAL CARBON IN AEROSOLS AT THE POLAR STATION "MYS BARANOVA"
Authors: Калашникова Д.А. , Симонова Г.В. , Попова С.А. , Турчинович Ю.С. , Лоскутова М.А. , Ризе Д.Д.
Published: December 2024

В работе представлены результаты статистической оценки измерений концентраций органического и элементного углерода (ОС и ЕС), изотопного состава углерода (δ13С) в пробах атмосферного аэрозоля, отобранных с 02.04.2018 г. по 03.09.2021 г. на полярной станции «Мыс Баранова». Средние концентрации ОС и ЕС за весь период наблюдений составляют 478±272 и 22±28 нг/м3 , соответственно. Среднее значение величины δ13C составило –27,6±1,0‰. Для периода полярной ночи величина δ13С варьируется от –31,3 до –26,2‰, ОС – от 115 до 2692 нг/м3 , ЕС – от 4 до 111 нг/м3 , для периода полярного дня – от –29,4 до –23,6‰, ОС – от 77 до 1490 нг/м3 , ЕС – от 2 до 164 нг/м3.

The paper presents the results of a statistical assessment of measurements of concentrations of organic and elemental carbon (OS and EC), carbon isotope composition (δ13C) in atmospheric aerosol samples taken from 04/02/2018 to 09/03/2021 at the Cape Baranova polar station. The average concentrations of OS and EC for the entire observation period are 478±272 and 22±28 ng/m3, respectively. The average value of δ13C was -27.6±1.0%. For the period of the polar night, the value of δ13C varies from -31.3 to -26.2, OS – from 115 to 2692 ng/m3 , EC – from 4 to 111 ng/m3 , for the period of the polar day – from -29.4 to -23.6, OS – from 77 to 1490 ng/m3 , EC – from 2 to 164 ng/m3.
THE USE OF AN AUTOMATIC NEPHELOMETER FOR ATMOSPHERIC STUDIES OF AEROSOL SCATTERING COEFFICIENT
Authors: Ростов А.П. , Шефер Н.А.
Published: December 2024

Представлены результаты использования модифицированного автоматического нефелометра, предназначенного для регистрации коэффициента аэрозольного рассеяния. Одноугловой нефелометр открытого типа собран на полупроводниковых свето- и фото-диодах с максимумом чувствительности на длине волны 0,83 мкм, с углом регистрации 45. Нефелометр обладает высокой чувствительностью и быстродействием, позволяющим с частотой до 10 Гц регистрировать рассеянное излучение. Это дает возможность определять флуктуации концентрации аэрозоля и совместно с акустическим термоанемометром исследовать статистические свойства аэрозольных потоков в атмосфере.

The results of using a modified automatic nephelometer designed to record the aerosol scattering coefficient are presented. An open-type single-angle nephelometer is assembled on semiconductor light and photo diodes with a maximum sensitivity at a wavelength of 0.83 microns, with a registration angle of 45. The nephelometer has high sensitivity and high speed, allowing to register scattered radiation with a frequency of up to 10 Hz. This makes it possible to determine fluctuations in aerosol concentration and, together with an acoustic thermoanemometer, to study the statistical properties of aerosol fluxes in the atmosphere.
IDENTIFICATION OF SOURCES OF INORGANIC MATTER OF THE SNOW COVER OF POLLUTED AND BACKGROUND TERRITORIES
Authors: Семенов М.Ю. , Онищук Н.А. , Нецветаева О.Г. , Ходжер Т.В.
Published: December 2024

Исследование посвящено выявлению источников загрязнения и оценке вкладов источников в загрязнение снегового покрова урбанизированных и фоновых территорий Иркутской области. Для этих целей использовался метод факторного анализа, основанного на неотрицательном разложении матрицы исходных данных (PMF). Установлено, что в загрязнении территорий обоих типов участвуют, главным образом, одни и те же источники: горение органического топлива, природные алюмосиликаты, природные и антропогенные силикаты и карбонаты. При этом, более 50% от массы твердой фазы снега на фоновых территориях представлено природными силикатами и алюмосиликатами, в то время как на урбанизированных территориях вклад литогенной составляющей в загрязнение воздуха и снега составляет менее 30%.

The study is devoted to the identification of sources of pollution and the assessment of the contributions of sources to the pollution of the snow cover of urbanized and background territories of the Irkutsk region. For these purposes, the method of factor analysis based on the non-negative decomposition of the matrix of initial data (PMF) was used. It has been established that the pollution of both types of territories mainly involves the same sources: gorenje organic fuels, natural aluminosilicates, natural and anthropogenic silicates and carbonates. At the same time, more than 50% of the mass of the solid phase of snow in the background territories is represented by natural silicates and aluminosilicates, while in urbanized territories the contribution of the lithogenic component to air and snow pollution is less than 30%.
STUDY OF FLAME OSCILLATIONS INDUCED BY EXTERNAL ACOUSTIC WAVE
Authors: Агафонцев М.В. , Лобода Е.Л. , Рейно В.В.
Published: December 2024

В работе проведено экспериментальное исследование влияния внешних пульсаций давления малой интенсивности на факел пламени метана. В качестве метода исследования процессов, протекающих в факеле пламени, использовалась ИК-диагностика. Исходя из анализа поля температуры были получены соответствующие спектры изменения температуры в пламени для различных режимов внешнего воздействия. Было получено, что на соответствующих спектрах присутствуют, помимо основной частоты, которая соответствует частоте внешнего воздействия, в спектре присутствуют две гармоники, амплитуда которых уменьшается с ростом частоты.

In this work, experimental research on the influence of external low-intensity pressure oscillations on a methane flame torch is conducted. Infrared diagnostics were used as the method to study the processes occurring in the flame torch. Based on the temperature field analysis, corresponding temperature change spectra in the flame for various external impact modes were obtained. It was found that in the corresponding spectra, in addition to the main frequency corresponding to the frequency of the external influence, there are two harmonics present, whose amplitudes decrease with increasing frequency.