bluuebunny/crossref_metadata_2025 huggingface dataset:
MANAGEMENT SYSTEM OF OCCUPATIONAL SAFETY AT UKRAINIAN ENTERPRISES: INTERNATIONAL AND EUROPEAN DIMENSION
Authors: Tverytnykova Elena , Demidova Yulia , Drozdova Tatyana
Published: June 2021

Abstract. The international and European experience in creating and improving integrated systems in the field of occupational safety and health on the basis of research regulatory documents of the International Organization for Standardization, European standards, national standards of Ukraine, industry and methodical documents on management of occupational safety and health of oil and gas complex enterprises is overviewed. The implementation features of OHSAS 18001 and ISO 45001 international standards to create an integrated safety management system of professional activity have been studied. The ways of implementing the analyzed requirements in the industry safety standards of occupational activity of oil and gas complex enterprises of Ukraine are considered. A number of hazardous events related to occupational activity at the enterprises: industrial safety, technogenic safety, labour hygiene and safety, ecological safety, psychophysiological safety has been considered and a generalizing scheme of dangers and hazardous events has been created. A model of an integrated management system for occupational safety activities for oil and gas enterprises is proposed based on the involvement of scientific literature, regulatory documents using the structural-logical method, systematization and generalization, and methods of meaningful and comparative analysis. It is proved that the management system, based on the principles of the cyclical model of quality management by E. Deming should include such aspects as: quality and risk management, environmental management, occupational safety management, social responsibility and power management.
RESEARCH OF THE SOFTWARE SECURITY MODEL AND REQUIREMENTS
Authors: Semenov Serhii , Davydov Viacheslav , Hrebeniuk Daryna
Published: June 2021

The subject of research in the article is a software security model. The aim of the work is to research the quality characteristics of the software and requirements for the software security in order to improve their safety. The article solves the following tasks: researching the shortcomings of the existing security model in order to identify its main shortcomings; study of the quality characteristics of software that affect its security in order to identify the possibility of improving the quality of software. The following results were obtained: on the basis of the analysis of the existing model of software security, the main features of the attributes of this model were identified, their advantages and disadvantages were given. On the basis of the conducted analytical study, the necessity of improving the existing model of ensuring the security of software has been proved. Existing requirements for software and characteristics that affect its quality are considered. The characteristics of software security are highlighted, the indicators of which should be improved. Conclusions: a software security model has been studied. The need to develop this model is shown by introducing the possibility of adapting the existing requirements for the security of software tools throughout the entire life cycle of software development; the study of the quality characteristics of software showed that to ensure its security, it is necessary to improve the following characteristics: integrity, authentication, confidentiality, access control. However, it was shown that an increase in these characteristics can lead to a deterioration in other indicators of software quality: portability, maintainability, performance.
RESEARCH OF IMAGES FILTRATION METHODS IN COMPUTER SYSTEMS
Authors: Tymochko Oleksandr , Larin Volodymyr , Kolmykov Maksym , Timochko Oleksander , Pavlenko Vladislava
Published: June 2021

It is known that human eyes are less sensitive to color, than to their brightness. In the RGB color space, all three components are considered equally important, and they are usually stored with the same resolution. However, you can display a color image more efficiently, separating the brightness from color information and presenting it with a higher resolution than color. RGB space is well suited for computer graphics, because it uses these three components for color formation. However, RGB space is not very effective when it comes to real images. The fact is that to save the color of an image, you need to know and store all three components of the RGB, and if one of them is missing, it will greatly distort the visual image representation. Also, when processing images in RGB space, it is not always convenient to perform any pixel conversion, because, in this case, it will be necessary to list all three values of the RGB component and write back. This greatly reduces the performance of various image processing algorithms. For these and other reasons, many video standards use brightness and two signals that carry information about the red and blue components of the signal, as a color model other than RGB. The most famous among such spaces is YCbCr.
DIGITAL IMAGE AUTHENTICATION MODEL
Authors: Ruban Igor , Bolohova Nataliia , Martovytskyi Vitalii , Koptsev Oleh
Published: June 2021

The development of new technologies, the growing volume of data and the total consumption of content in the digital environment are changing the ecosystem of modern media. Data can be easily and completely duplicated. It brings great convenience to life, work, scientific research and other areas of human activity. However, information security issues have appeared that have attracted a lot of attention. The purpose of this article is to present a model for digital image authentication. This article proposes a model for reliable verification of digital image authenticity with a high degree of protection and parameters for assessing the effectiveness of such systems.  Reliability is achieved because the watermark is hidden not in the whole image, but in its fragment, which is most suitable for hiding the image, as well as for using anti-noise codes as a watermark. Based on the current state of watermarking methods, it is recommended to use modern algorithms and architectures of convolutional neural networks to ensure a high degree of security.
THE DATA DIAGNOSTIC METHOD OF IN THE SYSTEM OF RESIDUE CLASSES
Authors: Krasnobayev Victor , Koshman Sergey , Kovalchuk Dmytro
Published: June 2021

The subject of the article is the development of a method for diagnosing data that are presented in the system of residual classes (SRC). The purpose of the article is to develop a method for fast diagnostics of data in the SRC when entering the minimum information redundancy. Tasks: to analyze and identify possible shortcomings of existing methods for diagnosing data in the SRC, to explore possible ways to eliminate the identified shortcomings, to develop a method for prompt diagnosis of data in SRC. Research methods: methods of analysis and synthesis of computer systems, number theory, coding theory in SRC. The following results were obtained. It is shown that the main disadvantage of the existing methods is the significant time of data diagnostics when it is necessary to introduce significant information redundancy into the non-positional code structure (NCS). The method considered in the article makes it possible to increase the efficiency of the diagnostic procedure when introducing minimal information redundancy into the NCS. The data diagnostics time, in comparison with the known methods, is reduced primarily due to the elimination of the procedure for converting numbers from the NCS to the positional code, as well as the elimination of the positional operation of comparing numbers. Secondly, the data diagnostics time is reduced by reducing the number of SRC bases in which errors can occur. Third, the data diagnostics time is reduced due to the presentation of the set of values of the alternative set of numbers in a tabular form and the possibility of sampling them in one machine cycle. The amount of additionally introduced information redundancy is reduced due to the effective use of the internal information redundancy that exists in the SRC. An example of using the proposed method for diagnosing data in SRC is given. Conclusions. Thus, the proposed method makes it possible to reduce the time for diagnosing data errors that are presented in the SRC, which increases the efficiency of diagnostics with the introduction of minimal information redundancy.
Modeling the spatial distribution of magnetic fields of low frequency multiple sources
Authors: Levchenko Larysa
Published: June 2021

The work is show that in conditions of dense the location of electrical equipment in the premises, buildings and on territories to ensure the regulatory levels of electromagnetic compatibility of personnel and the population, it is advisable to carry out preliminary modeling of the propagation of electromagnetic fields it is advisable. Considering the insignificant shielding of the magnetic field by the equipment cases, it is advisable to carry out modeling based on the magnetic component of the electromagnetic field. The mathematical ratio of the propagation of the magnetic field of individual sources, taking into account their dipole model, has been determined. The modeling was carried out for sources of the dipole and dipole-quadrupole types. Three-dimensional models of sources with the propagation of dipole, quadrupole and dipole-quadrupole harmonics of the field are provided, using the Matlab package. Application software has been developed in the C environment, using the SQL server database, and modeling of the propagation of the magnetic field of many sources in a certain plane has been carried out. This result is show that even for electrical equipment that operates to determine the reduced magnetic field isolines experimentally very difficult. At the design stages of equipment placement, modeling is the only tool for predicting the electromagnetic environment, which determines the electromagnetic compatibility of technical equipment and the electromagnetic safety of personnel and the public.
Application of geoinformation technologies for organizing passenger traffic at airports in conditions of quarantine zoning
Authors: Andrieiev Sergey , Zhilin Volodymyr , Sabadosh Anastasiia
Published: June 2021

The subject of research is the development of a method for constructing WEB-services based on cartographic models of airports for organizing passenger flows in conditions of quarantine zoning. The object of the research is the process of managing passenger flows at airports. The objective of the work is to improve the organization of passenger traffic at airports under quarantine conditions with the use of WEB-services based on cartographic models of airport buildings. Conclusions. Using the analysis results of the world's airports activities over the past five years, a steady trend has been revealed towards an increase of the number of flights, and, consequently, growth of the passenger traffic at airports. Also forecasts of air traffic development trends in Europe in the next five years are analyzed, which indicate the direction towards the growth of air traffic. An analysis of the quarantine restrictions impact in connection with the spread of COVID-19 was carried out, which showed that, despite a significant decrease in passenger traffic at airports in the world due to quarantine restrictions, there will be a significant increase in passenger traffic after quarantine relief. Based on the above, it was concluded that it is urgent to improve the organization of passenger traffic at airports under quarantine conditions through the use of WEB-services based on cartographic models of airport buildings. At the same time, the feasibility of using GIS technologies at airports analysis was made, as well as a review of modern information technologies that are currently used to organize the operation of airports in conditions of quarantine zoning. A method for constructing routes for organizing passenger flows at airports in conditions of quarantine zoning has been developed. The methodology envisages for the creation of airports passenger traffic maps using the most modern cartographic software products ArcGIS and ArcGIS Online, it contains recommendations for using a billing Wi-Fi network to track the movement of passengers in airport buildings, and, finally, envisages for the creation of WEB services for cartographic models of airports terminals. Developed with the use of proposed methodology, WEB-services for organizing passenger flows at airports in conditions of quarantine zoning, are convenient and ergonomic in terms of usage by workers of airports and airlines. Moreover, passengers can also quickly receive partial information sufficient to organize their movement in the airport terminal in accordance with quarantine restrictions.
RESEARCH OF THE METHOD OF INCREASING THE OBJECT DETERMINATION ACCURACY ON THE LOW-RESOLUTION VIDEO STREAM
Authors: Барсов Валерій , Костерна Олена , Плахотний Олександр
Published: June 2021

Study subject. The article proposes and investigates a method for increasing the accuracy of determination of the distance and the obstacle geometric parameters based on object contours determination using a computer vision system that uses low-resolution sensors. The goal is the effectiveness evaluation of the proposed method. Tasks: to conduct experimental researches of the quality indicators of the method of increasing the object contours determination accuracy; evaluate the effectiveness of this method. Used methods: statistical modeling, laboratory scale tests. The obtained results: the analysis of the proposed method efficiency was carried out and the influence of this method on the determination accuracy of the distance and object geometric parameters was evaluated. Conclusions: the considered method made it possible to achieve the increasing the determination accuracy of the distance and geometric object parameters by compensating for image blur using the Lucy-Richardson deconvolution algorithm. The obtained data showed a decrease in the maximum error in determining the distance from 8% to 4% and the error in the geometric object parameters from 7.7% to 5.8%. The implementation of this approach was carried out in the Python programming language.
EFFICIENCY OF COMPUTER NETWORKS WITH SDN IN THE CONDITIONS OF INCOMPLETE INFORMATION ON RELIABILITY
Authors: Зінченко Ольга , Вишнівський Віктор , Березовська Юлія , Седлачек Петер
Published: June 2021

The paper analyzes the effectiveness of computer networks with SDN in conditions of incomplete reliability information. In order to ensure the specified indicators of the reliability of the computer network, it is recommended to use their guaranteed estimates. To increase the level of security of information systems and introduce the concept of time reserve in the process of packet transmission, it is necessary to separate the functions of traffic transmission from management functions. This is the basic principle of SDN. When using SDN technology in computer networks, it is possible to enter a time reserve when transmitting messages. This makes it possible to more accurately determine the reliability. The evaluation of the data transmission system of the computer network takes into account the possibility of entering a time reserve and obtained the basic calculated ratios for reliability indicators in terms of incomplete information about their distribution laws. A priori information is limited by knowledge of the first initial moments of mathematical expectation and variance. These results are a justification for the structure of computer networks that are designed or upgraded. You can also use this information to build highly reliable networks or technical facilities that exist in a single implementation.
Method of ensuring the survivability of highly mobile computer networks
Authors: Tkachov Vitalii , Kovalenko Andriy , Kuchuk Heorhii , Ni Iana
Published: June 2021

The article discusses the features of the functioning of mobile computer networks based on small-sized aircraft (highly mobile computer networks). It is shown that such networks, in contrast to stationary or low-mobile ones, have a low level of survivability in case of local damage to their nodes. The purpose of the article is to develop a method for ensuring the survivability of highly mobile computer networks under conditions of destructive external influences, which leads to local destruction of network nodes or links between them, using the method of assessing survivability at all stages of network functioning, by changing the main function to implement all available strategies for the functioning of the network when determining the critical values of the integrity of the network and its ability to perform at least one of the available functions. The results obtained allow: to continue the development of theoretical research in the development of strategies for managing highly mobile computer networks in extreme situations; to develop an applied solution to ensure the survivability of highly mobile computer networks by building multifunctional or redundant structures, increasing the value of their redundancy. The studies allow us to conclude that the proposed method can be used at the design stages of highly mobile computer networks, characterized by increased survivability and capable of functioning in conditions of multiple local damages without catastrophic destructive consequences for the network structure.
AERODYNAMICS OF THE CITY
Authors:   Poznan University of Technology Faculty of Architecture Institute of Architecture, Urban Planning and Heritage Protection, Kozaczko Mieczysław
Published: June 2021

The “input-output desideratum”, outlined in the New Athens Charter, sets new requirements for urban designers. Nowadays, using modern techniques, we can solve weighty contemporary urban problems using such system of designing, which balances quantitative and qualitative parameters of the urban matter. The text presents the part of the designing system that uses methodology of the meteorology. Proper use of this system allows to control and design parameters of the socalled urban canopy. The urban canopy covers the area of reduced energy consumption and increased comfort of using the public space between the buildings constituting urban tissue. Urban canopy is characterized by multiplier effects, obtained - among others - thanks to the use of aerodynamics in urban design. Shaping buildings, supported by empirical method (with use of models), allows to implement the so-called filters and regulators postulated in the Charter: the elements that maintain the city's structure in balance.
LIGHT IN THE INTERIORS OF THE URBAN LANDSCAPE
Authors:   Poznań University of Technology Faculty of Architecture, Architecture and Spatial Planning Institute Workplace and Recreation Architecture Department / Technology in Architecture Department, Michalak Hanna , Suchanek Jerzy ,   Poznań University of Technology Faculty of Architecture, Architecture and Spatial Planning Institute Workplace and Recreation Architecture Department / Technology in Architecture Department
Published: June 2021

Urban compositions, which organize spaces in contemporary cities, are often perceived by its users – citizens, only as a net of communication paths There are known initiatives by more or less formalised social groups, which, in order to bring hitherto unnoticed fragments of urban territories into public consciousness, support their revitalisation, as well as the efforts of local authorities (also professional) related to architectural and urban education of children. These actions should facilitate the reading of the composition of urban spaces, which seems necessary for their proper use. This task is easier when the composition is clear, based on a conscious perception of existing spatial structures. Crystalline structures are best highlighted by light. It builds a scenography of space, helps in its perception and brings out formally important points. This article presents selected aspects of the use of daylight and artificial light in urban interiors.
STRATEGY OF DEVELOPMENT COASTAL AREAS IN A BIG CITY
Authors:   Assistant. Department of Architectural Design and Urban Planning Prydniprovsk State Academy of Civil Engineering and Architecture, Samoilenko Yevheniia
Published: June 2021

The article proves that a systematic approach to the urban organization of coastal areas includes complex environmental and recreational tasks. The study examines in detail the need to create a comprehensive strategy for the restoration of the coastal zone. The complex of measures is substantiated, among which the activation of water protection functions of coastal areas, rehabilitation of disturbed territories, use of recreational and town-planning potential of coastal territories for formation of recreational base along water area, development of integrated system of management of processes of coastal zones and integration of ecosystems. The work separately highlights the possibility of creating a recreational cluster that will ensure the continuity of the natural framework, given the multi-vector formation of the urban environment. It is established, that the connection of the recreational cluster with the suburban green strip and water area will create a pedestrian recreational corridor in the city and beyond, as well as contribute to the greening of the city and influence the modeling of ecological infrastructure.
Validation Based on Content To Measuring Carrer Decission Readiness
Authors: Pratama Entol Bugi , Purwono Urip , Yudiana Whisnu
Published: June 2021

Remaja dituntut untuk siap mengambil keputusan karier, seperti memilih jurusan kuliah yang tepat. Kesiapan keputusan karier diartikan sebagai kemampuan individu untuk membuat pilihan karier yang sesuai dengan mempertimbangkan kompleksitas faktor keluarga, sosial, ekonomi, dan organisasi yang mempengaruhi perkembangan karier individu. Penelitian ini bertujuan untuk mengetahui validitas konten alat ukur kesiapan keputusan karier yang dikembangkan berdasarkan kondisi siswa SMA/SMK di Indonesia. Metode penelitian yang dipakai adalah proses penelaahan ahli oleh tiga dosen dan enam praktisi psikologi pendidikan dilakukan untuk mendapatkan bukti validitas berdasarkan konten. Proses penelaahan ahli dibagi menjadi tiga tahap, tahap pertama penelaahan 160 aitem dilakukan oleh tiga dosen, tahap kedua revisi item, dan tahap ketiga proses penelaahan oleh enam praktisi psikologi pendidikan. Hasil penelitian menunjukkan bahwa 74 aitem yang mengukur kesiapan keputusan karier memiliki nilai I-CVI di atas 0,78 dan nilai S-CVI/Ave 0,98. Penelitian lebih lanjut perlu dilakukan dengan ujicoba alat ukur kesiapan keputusan karier dan pengumpulan data untuk menemukan bukti validitas lainnya dari alat ukur kesiapan keputusan karier dan mendapatkan norma kelompok.
Potrayal of Post-Traumatic Stress Diorder Among Flood Survivors
Authors: Ernita Zakiah  , Rosalinda Irma , Mauna
Published: June 2021

This study aims to look at the description of post traumatic stress disorder (PTSD) in flood survivors. PCL-C was used as an instrument to measure post traumatic stress disorder. This study used the PCL-C scale from Weathers and was developed by Solichah. Data analysis was performed used descriptive analysis techniques with the help of SPSS version 22. Based on the results of the analysis, it was found that subjects who experienced symptoms of post-traumatic stress disorder (PTSD) who were in the high category were 24.6%, 61.5% moderate, and low 13,8%. The implication of this study stated that individuals who have symptoms of PTSD after experiencing natural disaster need professional treatment to reduce their symptoms. Intervention is needed to make the individuals can overcome their obstacles and function better
Rotor blade design framework for airfoil shape optimization with performance considerations
Authors: Allen Luke , Lim Joon , Haehnel Robert , Detwiller Ian
Published: June 2021

A framework for optimizing rotor blade airfoil shape is presented. The framework uses two digital workflows created within the Galaxy Simulation Builder (GSB) software package. The first is a workflow enabling the automated creation of a surrogate model for predicting airfoil performance coefficients. An accurate surrogate model for the rapid generation of airfoil coefficient tables has been developed using linear interpolation techniques that is based on C81Gen and ARC2D CFD codes. The second workflow defines the rotor blade optimization problem using GSB and the Dakota numerical optimization library. The presented example uses a quasi-Newton optimization algorithm to optimize the tip region of the UH-60A main rotor blade with respect to vehicle performance. This is accomplished by morphing the blade tip airfoil shape for optimum power, subject to a constraint on the maximum pitch link load.
Psicomotricidade, leitura e escrita: bases teóricas de uma relação
Authors: Frainer Deivis Elton Schlickmann , Oliveira Bonin Soely de Fátima
Published: June 2021

Objetivamos com o presente estudo abordar aspectos teóricos do campo pedagógico, analisando os principais conceitos que reforçam a associação entre a psicomotricidade e a aquisição de leitura e escrita. Realizamos uma revisão de literatura a partir dos descritores “psicomotricidade, leitura e escrita” nas principais bases de dados de artigos de língua portuguesa (na Scielo e na Lilacs/BVS), livros, capítulos de livros, e trabalhos de conclusão de curso (no Google) entre os anos de 1987 e 2017. Analisamos estudos que buscam refletir sobre o desenvolvimento motor e sua relação com a alfabetização e o letramento, sendo esses conhecimentos criados dentro e fora do ambiente escolar. Observamos que as relações culturais, políticas, econômicas, científicas e sociais caminham junto com o processo de aprendizagem, e fazem da escola um momento de continuação da preparação para a vivência em sociedade; que a motricidade é essencial no desenvolvimento global da criança, interferindo na linguagem e na aprendizagem; e que o professor precisa favorecer um aprendizado psicomotor, lúdico e global para crianças que apresentam um desenvolvimento psicomotor em evolução, permitindo diminuir os problemas na escrita, na leitura, na direção gráfica, no pensamento abstrato e no lógico.
Sentimentos na docência em matemática: aspectos (in)dependentes do professor
Authors: Santos da Silva Ayres Luana Maria , Diniz Pereira Fabrine , Paula Novello Tanise
Published: June 2021

A docência é uma profissão na qual se caracteriza intensa troca de experiências, vivências e aprendizados e nesse contexto, surge a motivação para entender os sentimentos e emoções que regem o “Ser docente”. Desta forma, o presente estudo tem como objetivo analisar os sentimentos dos professores de Matemática, no decorrer da carreira docente. Para a produção de registros utilizou-se um questionário online, composto de três etapas e respondido por 94 professores de Matemática da educação básica de escolas públicas. Na primeira etapa do questionário utilizou-se como metodologia de análise a Estatística Descritiva para construir o perfil desses professores; na segunda etapa utilizou-se a Análise de Componentes Principais (ACP), em que surgiram duas categorias: aspectos dependentes e aspectos independentes da vontade do professor. A terceira etapa foi analisada através do Discurso do Sujeito Coletivo (DSC), porém essa última etapa será efetuada em publicações posteriores. A pesquisa inferiu que os professores participantes estão satisfeitos com sua escolha pela docência, porém observou-se também que eles estão insatisfeitos em relação a valorização salarial e social, pois eles acreditam que ela não é condizente com o trabalho que realizam.
Identificação e mapeamento de unidades naturais de ensino e aprendizagem no IFC -Araquari
Authors: Da Rocha Andrade Luiz Antônio , Alberto da Silveira Flávio , Luciano Lyra Rosa Heder , Jorge da Silva Nelson
Published: June 2021

Este artigo apresenta os resultados da pesquisa de identificação de unidades naturais de ensino e aprendizagem no Instituto Federal Catarinense – campus Araquari. Tal como as salas de aulas e os laboratórios, as unidades naturais são patrimônios naturais constituídos por elementos bióticos e abióticos com potencial didático. Foram consideradas os fragmentos de florestas, os cursos naturais d'água, os afloramentos de rochas, o solo e as intersecções do campus sobre o ecossistema Baia da Babitonga. A identificação delas vem suprir a necessidade com práticas de ensino de biologia, de legislação ambiental, do espaço e paisagem em geografia, de agropecuária e na formação de acervo natural in loco de elementos da geodiversidade e da biodiversidade, além de estímulo à conscientização ecológica. Assim definidas, elas podem ser estudadas por meio de trilhas ecológicas e com fornecimento de amostras para práticas em laboratório e em atividades integradoras. Soma-se ao valor científico a possibilidade de estudo do potencial econômico de prática extrativista de baixo impacto. O levantamento foi realizado a partir da interpretação das imagens de satélite e de imagens registradas durante as incursões de campo. A identificação das espécies da flora e fauna foram realizadas a partir do cruzamento de dados da pesquisa bibliográfica, de banco de dados digitais e das imagens capturadas. Os resultados compõem uma amostragem inicial do potencial ecológico e didático dessas unidades para o processo de ensino e aprendizagem do campus, além de contribuir para a responsabilidade institucional no desenvolvimento de tecnologias sustentáveis.
Educação domiciliar e o sistema educacional brasileiro: da utopia à realidade nas propostas de homeschooling na contemporaneidade
Authors: Santos Douglas Manoel Antonio de Abreu Pestana
Published: June 2021

Esta obra propõe expor os entraves e a exiguidade do sistema educacional brasileiro e possibilitar um vislumbre do ensino domiciliar, homeschooling, como resposta aos problemas na educação formal, cujo autor Leonardo Taciano Garbossa e colaboradores reúnem neste material uma série de estudos sobre a importância e a viabilidade da aprovação na legislação brasileira. As considerações se deram a partir da temática apenas do autor, formado em Direito e Matemática e consultor, assessor e diretor de operações em diversos segmentos empresariais, é colunista da Duna Press, jornal e magazine.
Portfólio da prática docente: registro e análise da aula de "índices zootécnicos para se ter uma fazenda leiteira produtiva" no 3º ano do curso técnico em agropecuária integrado ao ensino médio, campus Araquari-IFC
Authors: Schwegler Elizabeth , Furtado Manoela , Moreira Fabiana , Peripolli Vanessa
Published: June 2021

Com a chegada da pandemia mundial causada pelo Coronavírus (COVID-19), professores de todo o mundo precisaram se reinventar na forma de lecionar. O curso técnico em agropecuária integrado ao ensino médio do IFC – Campus Araquari forma profissionais na área agrícola há décadas, e tem grande importância para o desenvolvimento e visibilidade regional. Visto que o Brasil é um país que se destaca no agronegócio, preparar os discentes com mão de obra qualificada e conhecimento técnico é imprescindível. Para isso, é necessário o interesse e esforço dos alunos para estudar e uma formação adequada dos docentes para lecionar, mesmo em meio às adversidades. Principalmente neste momento delicado, a relação aluno-professor se faz ainda mais necessária, visto que o país possui grande desigualdade social, que pode impactar de forma direta o estudo remoto dos discentes. Avaliar e registrar os métodos de ensino utilizados durante a pandemia pode ser uma ferramenta muito útil para auxiliar docentes na condução de suas aulas, facilitando a disseminação de conhecimento e o aprendizado dos estudantes.
Portfólio da prática docente: registro e análise da aula de análise de dados experimentais no Curso de Mestrado Profissional em Tecnologia e Ambiente
Authors: Peripolli Vanessa , Olsson Débora Cristina , Moreira Fabiana , Schwegler Elizabeth
Published: June 2021

O objetivo deste portfólio foi proporcionar uma autorreflexão do conhecimento construído e das estratégias utilizadas no processo de ensino-aprendizagem. A aula sobre análise de dados experimentais foi ministrada na disciplina de estatística experimental do Curso de Mestrado Profissional em Tecnologia e Ambiente do Instituto Federal Catarinense Campus Araquari com base no plano de aula. O portfólio foi organizado da seguinte maneira: i) descrição do curso, da disciplina, do conteúdo da aula, do perfil do discente, do perfil do docente, do plano de aula e do planejamento do plano de aula. No plano de aula foram contemplados os conteúdos propostos e os recursos necessários para alcançar maior êxito no processo de ensino-aprendizagem, bem como a previsão do tempo para a abordagem de cada conteúdo. A avaliação dos alunos foi a etapa final do processo de ensino-aprendizagem e compreendeu uma prova composta por questões objetivas e dissertativas e uma autoavaliação das análises estatísticas propostas no projeto de mestrado. ii) amostra dos trabalhos e diário reflexivo, sendo demonstrados através de imagens, dos materiais utilizados em aula, da participação e interação dos alunos durante as discussões, assim como com trechos da autoavaliação das análises estatísticas propostas. iii) percepções dos estudantes sobre as aulas planejadas e executadas e as considerações finais. Este portfólio reflexivo ampliou o olhar sobre o processo formativo para além da aquisição de conhecimentos, pois as narrativas reativaram o pensamento sobre as experiências do professor e do aluno acerca de suas relações com a construção do conhecimento sobre análise de dados experimentais.
Teatristória: O teatro como metodologia de ensino na educação científica e tecnológica de nível médio no IFC – Câmpus Camboriú.
Authors: Serpa Ivan Carlos , Kloppel Fernanda Faccin da Rosa , Zerede Queren Hapuque Garcia
Published: June 2021

O presente artigo apresenta conclusões de pesquisa desenvolvida no Instituto Federal Catarinense – Campus Camboriú no período de 2018 a 2019. O objetivo proposto foi investigar inovações metodológicas aplicáveis ao ensino científico e tecnológico profissionalizante de nível médio com a utilização de técnicas teatrais denominadas: teatro científico. A pesquisa, de tipo qualitativa, constitui-se de um estudo de caso referente à intervenção didática de caráter investigação/estruturação, conforme Astolfi (2014). A coleta de dados realizou-se de acordo com a metodologia de análise de conteúdos segundo Bardin (2016). As discussões teóricas dialogaram com a produção epistemológicas de Bachelard (1996), Bloch (1977), Jameson (1999) e Eagleman; Brandt (2020), com foco no conceito de imaginação criadora como superação do obstáculo epistemológico do conhecimento quantitativo. Os resultados obtidos indicaram a possibilidade de superação do problema levantado pela pesquisa, demonstrando a viabilidade da utilização de técnicas teatrais em metodologias de ensino científico e tecnológico de nível médio nos Institutos Federais de Educação.
A Delphi consensus to advance on a Clinical Case Definition for Post COVID-19 condition: A WHO protocol
Authors: Diaz Janet V , Soriano Joan B
Published: June 2021

Background: While most people developing COVID-19 recover quickly and completely, a proportion of those infected with SARS-CoV-2 develop persistent symptoms, which can be disabling. After establishing the interim nomenclature for Post COVID-19 condition, there is a need to establish a clinical case definition to be used by all parties in all settings. Of the many definitions available to date, none is universal and the WHO has engaged in formally defining the Post COVID-19 condition based on existing evidence and by means of the most robust methodology. A key element for success is to engage patients and advocacy groups in this exercise.The objective of the study “Delphi consensus to advance on a Clinical Case Definition for Post COVID-19 condition” is to determine the domains, variables and values (thresholds) for inclusion into a clinical case definition for Post COVID-19 condition, using a Delphi consensus methodology. Methods: This study is a prospective, Delphi consensus-seeking exercise, mixed, iterative survey of internal and external experts, patients and other stakeholders. Panelists (individual participants who will fill the online survey in) will fulfil the criteria of balanced representativity of all WHO regions, age and gender balance, specialty diversity, and patients.We aim to sample approximately 100 panelists for this Delphi task, and the COMET Initiative DelphiManager software will be used. DelphiManager is a web-based system designed to facilitate the building and management of Delphi surveys.From an initial, comprehensive list of 14 domains identified, 10 have been selected, some of them with a number of sub-domains. It is envisaged that panelists will reach consensus after two Delphi rounds. The questionnaire with all agreed domains/variables will be followed by a series of questions relating to these variables with eventual values/thresholds (Appendix 2). Registration of panelists and the actual Delphi questionnaire are accessible via this link https://delphimanager.liv.ac.uk/DefiningPostCOVID/Delphi‘Consensus’ will be obtained on a question if 70% or more of the responses fall within the same response on a 9-point Likert scale. ‘Disagreement’ will occur if 35% or more of responses fall in both of the two extreme ranges of possible options on the Likert scale. All other combinations of panel answers will be considered ‘partial agreement’. Discussion: Establishing a satisfactory clinical case definition of Post COVID-19 condition is needed to enable systematic investigations of the incidence, duration and pathogenesis of Post COVID-19 condition, and to eventually develop effective treatments and successful management strategies and care pathways. This working clinical case definition may change as new evidence emerges, data are pooled and our understanding of the consequences of COVID-19 develops further.
Measuring flavin mononucleotide concentrations in whole blood, red cell based or acellular perfusate samples by fluorescence spectrometry
Authors: Wylin Tine , Heedfeld Veerle , Jochmans Ina
Published: June 2021

Flavin mononucleotide (FMN) is non-covalently bound to complex I of the mitochondrial respiratory chain. During ischemia-reperfusion injury, reduced FMN is released from complex I, leaving the complex impaired. In literature, FMN measured during ex situ organ perfusion has been considered as a biomarker for organ graft quality. With this protocol the FMN concentrations in perfusate samples taken during organ perfusion can be estimated quickly and easily by fluorescence spectrometry. The use of non-binding plates is essential. A fresh standard curve using riboflavin 5'-monophosphate sodium salt hydrate must be prepared every day. To quantitatively compare sample concentrations between different plates, it is advisable to include an internal standard. This internal standard is best prepared by pooling samples from experiments that use the same perfusate composition. This assay will work for samples acquired from whole blood, red cell based solutions or acellular solutions.
Possibly Appropriate Maintenance dose of Voriconazole in pediatric patients: a single center observational study
Authors: Zhao Yi-Chang , Zou Yang , Tang Dan , Xiao Chen-Lin , Xiao Yi-Wen , Wang Feng , Zhang Bi-Kui , Xiang Da-Xiong , Yu Feng , Yan Miao
Published: June 2021

Background: Voriconazole is a triazole antifungal agent and a commonly used first-line treatment for invasive aspergillosis (IA). The study was performed to explore the factors affecting voriconazole trough concentration and maintenance dose to optimize voriconazole dosage in pediatric patients. Method: The demographic information, concentration data, CYP2C19 genotypes, and clinical outcomes of eligible pediatric patients from January 1th, 2016 to December 31th, 2018 were collected retrospective . Result: The study finally included 145 voriconazole trough concentrations from 94 pediatric patients. Steady trough concentration ranged from 0.04 to 16.11 μg/mL. Morerover, the distinction between the maximum and the minimum corrected concentration of per kilogram maintenance dosage is as high as 907 folds and children ≤2 years old showed the minimum variation compared to other individuals (P<0.001). A high inter- and intra-individual variability of voriconazole in pediatric patients were observed. Only 54.5% of the pediatric patients achieved the target range (1.0 to 5.5 μg/mL) at unadjusted initial dosage, while 35.9% of children were subtherapeutic, only 9.6% of children were supratherapeutic at unadjusted initial dosing. The younger children (≤12 years) seem to have a lower trough concentration (P=0.0096) and lower percentage of target achievements (P=0.004). And 98.97% of the maintenance dosage was below 9.0 mg/kg. For pediatric patients of different ages, it was found that most of them was underdosed. While, to achieve targeted therapeutic level for different age groups of ≤2, 2-6, 6-12, and 12-18 years, the median voriconazole maintenance doses were 5.7, 6.7, 5.0, and 3.3 mg-1kg/12h, respectively had been required in order to achieve therapeutic level (P<0.001). Conclusion: Pediatric patients especially those ≤12 years old might need a higher dosage regime to achieve therapeutic trough concentration. Importantly, early and repeat monitoring of voriconazole is essential to ensure the effectiveness and safety of voriconazole in children.
Successful Treatment of stage IIIb intrahepatic Cholangiocarcinoma After Neoadjuvant Therapy With PD-1blockade Camrelizumab: A Case Report and Review of Literature
Authors: Zhu Shuguang , Li Haibo , Zhang Jianwen , Qiu Chunhui , Dai Tianxing , Li Hua , Wang Guoying
Published: June 2021

Prognosis of ICC with lymph node metastasis is poor. And the feasibility of operation is uncertain, which is a contraindication in NCCN guidelines. In addition, in the neoadjuvant therapy of ICC, the role of immunotherapy is not clear. We describe a case of ICC with lymph node metastasis was successfully treated with neoadjuvant therapy.
Title: E-cigarettes and smoking in Irish teens: A logistic regression analysis of current (past 30-day) use of e-cigarettes
Authors: Hanafin Joan , Sunday Salome , Clancy Luke
Published: June 2021

Aim: Electronic cigarette use among Irish teenagers has risen significantly. In 2019, prevalence of current use (last 30 days) among 15-17-year olds was 17.3%. We examine social determinants of adolescent e-cigarette current use. Subject and Methods: A stratified random sample of 50 schools in Ireland was surveyed in 2019, part of the European School Survey Project on Alcohol and other Drugs (ESPAD), with 3,495 students aged 15, 16 and 17. Bivariate and multivariable logistic regression (providing adjusted odds ratios (AORs)) analyses were performed using Stata version 16. Results: Current e-cigarette users were more likely to be male (AOR=0.55, 95% CI:0.32-0.96, p<.01), younger (AOR=0.34, 95% CI:0.17-0.67, p=<.05), to participate in sport (AOR=2.21, 95% CI:1.05-4.65, p<.05), to have higher-educated parents (maternal higher education: AOR=27.54, 95% CI:1.50-505.77, p=<.05, paternal higher education: AOR=2.44, 95% CI:1.00-5.91, p<.05), and less likely to consider their families better off (AOR=0.29, 95% CI:0.13-0.65, p<.01), or to report familial support (AOR=0.78, 95% CI:0.64-0.95, p<.05). They were more likely to be cigarette smokers (AOR=7.22, 95% CI:3.97-13.12, p<.001), to report problem cannabis use (AOR=3.12, 95% CI:1.40-6.93, p<.01), to be ‘binge’ drinkers (AOR=1.81, 95% CI:1.00-3.32, p=.054), and to have friends who get drunk (AOR=5.30, 95% CI:1.34-20.86, p<.05). Conclusion: Boys, smokers, binge drinkers, problem cannabis users, and sport-playing teenagers from higher-educated families, are at particular risk. As the number of young people using e-cigarettes continues to rise, including teenagers who have never smoked, improved regulation of e-cigarettes, similar to other tobacco-related products, is needed urgently to prevent this worrying new trend of initiation into nicotine addiction.
Establishment of callus induction system, histological evaluation and taxifolin production of Larch
Authors: Liu Xinglong , Zhao Yingchun , Chen Xueyan , Dong Ling , Zheng Yinan , Wu Ming , Ding Qiteng , Xu Shuang , Ding Chuanbo , Liu Wencong
Published: June 2021

Taxifolin in larch is an important natural active ingredient, which prevents and treats liver diseases and cardiovascular diseases, and has many health benefits and application values ​​such as anti-tumor, anti-virus, and anti-aging. However, the traditional extraction method is not conducive to the protection of the ecological environment, and also limits the industrial production of taxifolin from larch. Therefore, the purpose of this research is to establish a larch callus culture system and obtain taxifolin from callus. The shoots of the stem-tips of Larix olgensis were used as explants to be cultured. The light conditions, optimal medium and hormone ratio for callus induction were screened to evaluate the callus induction characteristics of larch and its influence on the accumulation of taxifolin. The results showed that: callus formation started on 28–51 days, and the best conditions for inducing callus were explored: 12 h/d light culture MS + 2,4-D 2 mg/L + 6-BA 1 mg/ L + KT 0.1 mg/L; the callus induction rate is 50%-80%; the highest condition for producing taxifolin 6-BA 1 mg/L + NAA 0.1 mg/L, reaching 0.414%. In conclusion, this study represents a suitable induction condition for larch callus culture and taxifolin accumulation.