bluuebunny/crossref_metadata_2025 huggingface dataset:
Traditional Spiritual and Moral Values, Sovereignty and Legal Regulation of Metaverses
Authors:   Head of the Department of Theory and History of State and Law of the Southern Federal University, LL.D., Professor, Ovchinnikov Aleksey I.
Published: August 2023

The article presents the tendency of development of metaverses (virtual universes) from the standpoint of “advanced law-making”.
Mobilization Techniques within the Framework of the Military Reform of Alexander II: Based on Materials of the Novgorod Governorate
Authors:   Head of the Department of Theory of State and Law of the Yaroslav-the-Wise Novgorod State University, LL.D., Associate Professor, Mitina Svetlana I.
Published: August 2023

The article describes mobilization technologies in the Russian Empire of the second half of the XIX century by the example of the application of the Military Service Charter of 1874. The material presented in the article allows us to identify the features of the introduction of military conscription institutions in Russia in the conditions of the abolition of serfdom and the formation of a new type of armed forces.
“Theft” in the History of Russian Law: Concept Origination
Authors:   Director of the Academic Center for Legal Technologies of the Siberian Institute of Management, Branch of the Russian Presidential Academy of National Economy and Public Administration, Professor of the Department of Criminal Law, Criminal Procedure and Criminalistics of the Institute of Philosophy and Law of the Novosibirsk State University, LL.D., Associate Professor, Savchenko Dmitry A.
Published: August 2023

The article presents the results of a study of documents that allow us to determine the semantic content of the concept of “vorovstvo” at the initial stages of its application in domestic law. It is concluded that during the specified period, the concept of “vorovstvo” covered offenses related to non-fulfillment of the duty to honestly and unconditionally serve the tsar, to accurately fulfill all his commands.
Genesis of the Intellectual Rights Category and Transformation of the Intellectual Property Sphere in the Modern Conditions
Authors:   Associate Professor of the Department of Civil Law of the Institute of Philosophy and Law of the Novosibirsk State University, PhD (Law), Karunnaya Yana A.
Published: August 2023

The paper considers the evolution of the category of intellectual property rights, current problems that have arisen in connection with the intensive development and implementation of digital technologies, artificial intelligence. It is shown that the regulations, being addressed to the practice of regulating public relations, are not able to fully ensure their uniform application.
Constitutional Revolutions in the Historical and Modern Jurisprudence: Legal and Methodological Aspects
Authors:   Head of the Department of Theory and History of State and Law, Constitutional Law of the Institute of Philosophy and Law of the Novosibirsk State University, LL.D., Professor, Kravets Igor A.
Published: August 2023

The article discusses the legal and methodological foundations of constitutional revolutions, scientific and interpretative approaches to understanding the constitutional revolution in historical and modern jurisprudence, proposes innovations in the legal regulation of constituent power from the standpoint of comparative legal and historical experience for legal transformation and modernization of the legal order.
Artificial Intelligence: The Degree of Influence on Labor Relations
Authors:   Associate Professor of the Department of Labor and Environmental Law of the Law Faculty of the National Research Lobachevsky State University of Nizhny Novgorod, PhD (Law), Associate Professor, Filipova Irina A.
Published: August 2023

The development of artificial intelligence and the introduction of intelligent systems in manufacturing and services are already having a major impact on the relationship between employees and employers: working conditions are changing, the employer’s ability to monitor the performance of their work duties by employees and evaluate the results of their work is expanding. The analysis of the ongoing processes allows us to conclude that in the conditions of Industry 4.0, the further spread of artificial intelligence systems in the world of work is inevitable, which will increase the frequency of human-machine interactions and qualitatively change the production environment. This will be facilitated by reducing the cost of training artificial intelligence and increasing its efficiency, the platformization of the economy, the implementation in practice of the model of smart manufacturing, etc. A further increase in the role of artificial intelligence in the world of work will accompany the transition to the next stage (Industry 5.0), which will affect the actual situation of the employee and the employer, causing the need to make changes to the norms of labour law that consolidate their status as subjects of labour relations.
Parallel Import as an Economic and Legal Category
Authors:   Head of the Department of Entrepreneurial Law of the Ural State Law University Named after V.F. Yakovlev, LL.D., Professor, Belykh Vladimir S. , Panova Albina S. ,   Head of the Department of Civil and Entrepreneurial Law of the Kazan Innovative University Named after V.G. Timiryasov, LL.D., Associate Professor
Published: August 2023

The article describes economic and legal features of the parallel import category. The main economic advantages of parallel import are associated with the opportunity to facilitate the policy of good faith trade and competition. The legal status of the issue of parallel import in Russia in the modern conditions is analyzed. Recommendations for development of national laws on parallel import are given.
The Charity Essence of Crowdfunding
Authors:   Lecturer of the Siberian Law University, Postgraduate Student of the Law Faculty of the Dostoevsky Omsk State University, Makarova Ksenia B.
Published: August 2023

At the present stage of development of society, characterized by the adjustment of socially significant foundations of the state, the creation of new institutions of economic support for certain categories of citizens in order to realize their constitutional rights, a special demand of society for various types and forms of charitable activities is being formed. This paper analyzes the key aspects related to the nature of crowdfunding: the process of its development, domestic practice of its application, types of crowdfunding. The study also includes a description of the emerging trend in Russian charity in terms of modernizing society and ensuring its stability, which is expressed in a change in the functionality of the institutional agent of charitable activity and, as a consequence, a change in the value orientations of charity subjects. The purpose of the study is to determine the charitable nature of the crowdfunding institute by their local consideration. Attention is drawn to the problems that arise when separating crowdfunding and charity from other forms of investment and donations.
PRINCÍPIO DA ASSOCIAÇÃO, ARTESANIA DAS PRÁTICAS E SABER PODER
Authors: Alcântara Fernanda Henrique Cupertino , Felisberto Rosana Ribeiro , Oliveira Taysnara Sabrine Ferreira
Published: August 2023

Este artigo objetiva documentar e problematizar a história da ASMARC/MG (Associação de Seletores de Materiais Recicláveis de Caratinga), desde a sua fundação até a atualidade. Para tanto, descreve as mobilizações iniciais, as fases de desenvolvimento, parcerias institucionais e relação com a administração pública local ao longo do tempo. Relata também o desenvolvimento organizacional e institucional do empreendimento estudado. O artigo baseia-se na metodologia da pesquisa ação e da observação participante. Além disso, realiza um levantamento documental descritivo e problematiza a situação do município de Caratinga/MG com relação aos resíduos sólidos pós-consumo e sua destinação, bem como as políticas públicas de Estado a esse respeito. Ao cabo historiciza a inserção, a organização coletiva e a importância do papel desempenhado pelas catadoras de material reciclável nesse território a partir de um estudo de caso que auxilia a compreensão e comparação com outras experiências brasileiras.
Innovación tecnológica y su efecto en la gestión administrativa del Gobierno Autónomo Descentralizado del cantón Quevedo
Authors: Rodriguez Durango Ronald Enrique , Moreira Menéndez Mercedes Cleopatra
Published: August 2023

La presente investigación tiene como objetivo identificar la innovación tecnológica utilizada en el Gobierno Autónomo Descentralizado del cantón Quevedo, y de qué manera contribuye a la mejora del desempeño laboral. Como metodología se utilizó un enfoque descriptivo con aplicación de la observación de campo, se aplicó un diseño no experimental con un método hipotético para el objeto de estudio; la población de estudio fue el personal administrativo del GAD del cantón donde se tomó la percepción de 26 miembros de la institución para la aplicación de encuesta sobre gestión, procesos y uso de tecnología y herramientas tecnológicas. Con los resultados se puede evidenciar la importancia del uso de tecnologías en la gestión administrativa, cuya finalidad es redefinir los procesos, políticas internas para el debido uso de las tecnologías de la información y comunicación impactando directamente en el que hacer del Municipio de Quevedo. Se evidencia que no se aplican herramientas tecnológicas actualizadas en la gestión administrativa, lo que dificulta el buen desempeño de las actividades diarias. Se concluyó que el GAD Quevedo usa herramientas tecnológicas obsoletas, faltan plataformas para usuarios, falta de adquisición equipos tecnológicos para el buen y desarrollo de las actividades, la tecnología se ve como un arma de competencia y, como tal, debe ser un componente clave de la planificación estratégica a corto y largo plazo.
Revisión de la literatura sobre el uso del aprendizaje profundo enfocado en sistemas de inspección ópticos automatizados para la detección de defectos superficiales en el sector de la manufactura
Authors: Sanchez-Romero Jonathan , Llerena-Izquierdo Joe
Published: August 2023

El sector de la manufactura utiliza metodologías de aprendizaje automático supervisado que permiten mejorar procesos de inspección mediante la visión artificial. La inspección óptica automatizada ofrece eficiencia en el proceso de inspección para la detección de defectos en la fabricación de diversos productos. Este trabajo aporta con la identificación de aquellas limitaciones en el procesamiento de datos basados en el conjunto de reglas definidas y la gestión del dominio del proceso. Se propone una revisión de literatura sobre el uso del aprendizaje profundo enfocado a los sistemas de inspección ópticos automatizados para la detección de defectos superficiales en el sector de la manufactura. El objetivo propuesto es de identificar las diferentes arquitecturas orientadas en redes neuronales convolucionales aplicadas en sistemas de inspección óptico con el fin de automatizar la extracción de características o patrones. Por medio de la exploración de trabajos relevantes se permite identificar un total de 47 documentos seleccionados que abordan los problemas de generalización y técnicas de optimización, finalmente se contrasta la información de las diferentes arquitecturas para la elaboración de una tabla comparativa que evidencia mejoras en la precisión de los sistemas de inspección óptico mediante el porcentaje alcanzado. Estos resultados contribuyen como un insumo al conjunto de literatura existente para mejoras al sector de la manufactura.
Vitalization Plans for the World Taekwondo Hanmadang Competition
Authors:   The World Society of Taekwondo Culture, Jung Hyun-Do , Park Dong-Soo
Published: August 2023

Over the years, there has been a decreasing number of foreign participating countries in the World Taekwondo Hanmadang Competition, which has greatly contributed to making Taekwondo a sport for all and not just a competition sport, so this study aims to present problems and improvement measures. First, the participating divisions of the Taekwondo Hanmadang should be subdivided more diversely. Second, competitions for each dan should be included in the official World Taekwondo Hanmadang poomsae competition in which 8 dan and 9 dan can participate. Third, refresher training should be held beforehand for international referees and operating personnel who participate in the Taekwondo Hanmadang. Fourth, government budgets for the Taekwondo Hanmadang should be secured and promotions through various media should be strenghthened. Fifth, specialist benefits should be given to winners of the Taekwondo Hanmadang. Sixth, various events and local programs centered on participants in the World Taekwondo Hanmadang should be linked together.
Preferential Trade Agreements and Productivity: Evidence from Peru
Authors: Tello Mario D. , Tello-Trillo Cristina J.
Published: August 2023

This paper analyzes the impact of reducing output tariffs (i.e., domestic tariffs on import of final goods) and input tariffs (i.e., domestic tariffs on imports of intermediate goods) on total factor productivity growth of Peruvian manufacturing firms. Peru’s annual survey of manufacturing data from 2003–2017 is used to explore the reduction of tariffs during three preferential trade agreements: United States, China, and the European Union. Lower output tari˙s could decrease productivity by reducing firm’s market share or could increase productivity by inducing tougher import competition, while cheaper imported inputs can raise productivity via learning, variety, and quality effects. The results show that a decrease in output tariffs decreases Peruvian firms’ productivity growth for non-exporters (i.e., domestic firms producing goods that are also imported) while increasing productivity growth for exporters (i.e., domestic firms producing export goods). In contrast, a reduction in input tariffs increases firm productivity for all firms.
Between God, the People, and the State: Citizen Conceptions of Zakat
Authors: Gallien Max , Javed Umair , van den Boogaard Vanessa
Published: August 2023

Zakat – one of the five pillars of Islam – is an annual obligatory payment, typically equivalent to 2.5 per cent of an individual’s productive wealth, to a set of appropriate recipients, including the poor. The annual global zakat pool is estimated to make up between US$200 billion and 1 trillion. States have long sought to harness zakat for their own budgets – and legitimacy. To date, however, there has been no systematic empirical discussion of how citizens perceive and engage with state involvement in zakat and how they perceive state-run zakat funds. These perceptions and experiences are central to important questions of how we conceptualise fiscal transfers and the relationship between citizens and states: if zakat is legally treated as a tax, does it function like one too? Do citizens engage with it differently? Does its formalisation strengthen or undermine the social norms in which it is embedded? Summary of Working Paper 167.
Las lágrimas como preludio
Authors: García Palma Jonathan Jesús
Published: August 2023

Un llanto que dio paso a la configuración de una nación.
Análisis de la función de la identidad corporativa en las agrupaciones culturales de Tabasco
Authors: Priego Gaspar Fredxy Cecilia , Frías López Aurora Kristell
Published: August 2023

El estudio realizado se enfoca en identificar el nivel de identidad corporativa que existe en las agrupaciones de artes escénicas. Se trabajó con la empresa cultural de artes escénicas “Teatro en 30” de Tabasco. Las técnicas empleadas fueron las entrevistas semiestructuradas y la observación participante. Los resultados interpretados muestran que prevalece la inexistencia de identidad corporativa lo cual es causado por la falta de consolidación de un estructura administrativa, la delimitación y ejecución de funciones y la formación de capital humano en esa materia de imagen corporativa. Se sugiere que se realice una función dentro de la agrupación especifica para la imagen a través de las Relaciones Públicas.
Max Horkheimer: o projeto da teoria crítica e seu caráter formativo
Authors: Bido José Mateus , Galuch Maria Terezinha Bellanda , Gilioli Eduardo Borba
Published: August 2023

This article aims to reflect on the formative character that is at the base of Critical Theory, especially in the thought of Max Horkheimer, whose analyzes turn to the social, political, economic and cultural factors that, permeated by the concept of bourgeois rationality, inspire the irrationality of the productive and political-cultural dynamics of the early 20th century. In this sense, the critique of reason that becomes an instrument of the domain of developed industrial society, of the culture that is reified in consumer products and of the subjectivity shaped by psychosocial factors of the civilizing process is fundamental to Horkheimer's project. The analysis of positive rationality elevates the project to the delimitation of the boundaries between traditional theory and critical theory and makes it possible to denounce the limits of reason that mythifies itself. In this aspect, Horkheimer seeks to substantiate the critical character of rationality, in the sense of overcoming the historical blindness to which he allowed himself to be submitted.
Research on the Influence of Live e-Commerce Broadcasting on Consumer Purchase Intention Based on Content Marketing
Authors:   IAGBT, Hu Mingli , Kim Yeong-Gil , Park Jungwoo
Published: August 2023

Purpose – In recent years, e-commerce live broadcasting has received attention from theoretical scholars and practical experts for its online interactive promotional capabilities. In the context of e-commerce live streaming, this article provides new ideas for exploring the logic of content marketing by exploring the paths of various dimensions of e-commerce live streaming content marketing on consumer purchase intention, and clarifying the interrelationships among the variables. Design/Methodology/Approach – Based on SOR theory, this article takes content marketing as the entry point to explore the influence mechanism of e-commerce live content marketing on consumer purchase intention from the perspective of consumers. Empirical data were obtained through questionnaires; 393 valid samples were analyzed using SPSS26 and AMOS26 tools, and research hypotheses were verified using structural equation modeling. Findings – The four dimensions of content marketing, functionality, entertainment, emotion, and interactivity can positively influence consumer purchase intention to varying degrees. Content marketing positively influences perceived value, perceived value positively influences purchase intention, and perceived value partially mediates the relationship between content marketing and purchase intention. Research Implications – This study reveals the mechanism of the influence of e-commerce live content marketing on consumer purchase intention, provides guidance for live anchors and e-commerce sellers, and, at the same time, helps consumers understand themselves and make more rational consumption decisions.
Vigilância do fluxo informacional e privacidade no ambiente digital
Authors: Moreira Arnaldo Luis Darg , Razzolini Filho Edelvino , Adrião Milton Cesar
Published: August 2023

Introdução: A crescente oferta de produtos e serviços em ambiente virtual resultaram em significativo aumento do volume dos dados pessoais e organizacionais que transitam por redes de dados e são armazenados em diferentes locais, por diferentes entidades. As interações neste ambiente são monitoradas continuamente, seja por necessidades relacionadas a interesses de empresas ou organizações, seja para coibir práticas ilícitas as mais diversas. Estas atividades de monitoração, que configuram um estado de permanente vigilância, suscitam preocupações relacionadas com o tratamento dos dados coletados e processados, com importantes implicações éticas e legais, e que podem não estar devidamente cobertas pelos instrumentos legais. Objetivo: A pesquisa procurou identificar que os estudos publicados entre 2010 e 2020 tratam de questões éticas ou legais relacionadas com a privacidade no ambiente virtual. Metodologia: Foi realizada uma revisão da literatura, adotando como técnica a análise de conteúdo. Como recurso tecnológico foi utilizado o software Excel® e o ATLAS.TI®.  Resultados: Apenas 19 dos 39 documentos encontrados estão alinhados com o objetivo da pesquisa, a maioria dos quais teses e dissertações. As publicações estão concentradas na segunda metade do período analisado. Conclusão: as análises evidenciaram uma crescente necessidade em monitorar as informações que circulam no ambiente virtual, envolvendo emissor e receptor, abarcando questões de segurança, aumento do volume de dados, novas tecnologias, crimes cibernéticos entre outras questões. A quantidade e a distribuição dos artigos ao longo do período analisado indicam que estes temas demandam ainda maiores investigações, contemplando perspectivas mais abrangentes das atividades de monitoração em ambientes virtuais.
Gestão da informação nos processos de pregão eletrônico em uma Instituição Federal de Ensino Superior
Authors: Batinga Sarah Medeiros , Finger Andrew
Published: August 2023

Introdução: O pregão eletrônico é uma modalidade de licitação para aquisição de bens e contratação e serviços comuns sendo obrigatório sua utilização pelos órgãos públicos, incluindo as Universidades Federais. O pregão eletrônico é composto por informações de valor estratégico para aprendizagem organizacional e a melhor tomada de decisão. Esta pesquisa teve como objetivo analisar como se caracteriza a gestão da informação nos pregões eletrônicos em uma Instituição Federal de Ensino Superior. Métodos: O estudo foi realizado na Universidade Federal de Alagoas, maior instituição de ensino público do Estado de Alagoas. Tratou-se de pesquisa descritiva com abordagem qualitativa, foram entrevistados treze servidores públicos que atuam nos pregões eletrônicos como instrumento de coleta de dados. Foi realizada análise de conteúdo como método de investigação de dados. Resultados: Foram identificadas as principais necessidades de informações dos servidores nos pregões eletrônicos como sendo: descrição do material ou serviços, cotação de preços e finalidade da aquisição. As fontes pessoais foram as mais utilizadas pelos servidores na resolução de dúvidas no processo. Não houve um acesso fácil a informações de outros setores e os produtos e os serviços de informação estavam desatualizados e pouco detalhados para alguns usuários. Conclusão: A pesquisa é relevante pois analisou a gestão da informação na instituição, podendo trazer melhorias no uso da informação, na elaboração de produtos e serviços de informação a partir de necessidades informacionais dos solicitantes de compras.
Design Science Research na prática
Authors: Santana Lílian Dominguez , Pereira Frederico Cesar Mafra , Mattos Max Cirino de
Published: August 2023

Introdução: Os repositórios institucionais consolidaram-se como ferramentas importantes para o movimento Acesso Aberto em razão da possibilidade de disponibilização da produção científica, contudo, ainda há desafios relacionados à implementação e manutenção dos repositórios, especialmente no que tange à subutilização e às questões de direito autoral/propriedade intelectual. Assim, considerando esse contexto e, tendo por objetivo o ensino prático do método Design Science Research aplicado à Ciência da Informação, durante a disciplina Design Science Research do Programa de Pós-Graduação em Gestão e Organização do Conhecimento, da Escola de Ciência da Informação e do Programa de Pós-Graduação em Ambiente Construído e Patrimônio Sustentável, da Escola de Arquitetura, ambos da Universidade Federal de Minas Gerais, os alunos foram desafiados a desenvolverem como artefato um repositório institucional. Objetivo: Apresentar a experiência de aplicação do método Design Science Research para projetar um repositório digital. Metodologia: Design Science Research. Resultados: Apresenta o percurso pelas etapas de identificação e conscientização do problema, revisão sistemática da literatura e ideação de um repositório institucional baseado em periódico científico. O método Design Science Research revelou-se como um condutor de toda a pesquisa e, por meio da associação do rigor e relevância, promoveu a aproximação entre teoria e prática. Conclusão: Contribui não apenas na apresentação do método de forma teórica e prática, como exemplifica o seu uso na área da Ciência da Informação.
Cultivating Reflective Nursing Practice: Consideration of Human Suffering
Authors: Ritt Elizabeth , Ridge Alison
Published: August 2023

The pandemic has shined a light on the universal experience of human suffering as a phenomenon that connects the lives of people across the world. Suffering is a profoundly personal experience, yet we also experience shared suffering. Reflective nursing practice serves as an essential foundation for engaging in self-awareness, embracing shared vulnerability, and exercising self-care that bolsters the delivery of compassionate nursing care across patient populations and communities. The well-being of a nurse is a collective responsibility among stakeholders, and a systems-level approach acknowledges the importance of self-care and invests in formal strategies that support the long-term well-being of the nursing workforce. By doing so, the needs of the suffering may be meaningfully addressed.
Correlations Among Nursing Students’ Perceived Stress, Posttraumatic Stress Disorder, Caring Behaviors, and Faculty Support
Authors: Wei Holly , Shepherd Morgan , Huang Kun , Corbett Robin Webb , Eason Frances
Published: August 2023

Students’ mental health issues are noteworthy. This study examined nursing students’ perceived stress and posttraumatic stress disorder (PTSD) and relationships among stress, PTSD, faculty support, and caring behaviors. Ninety-five undergraduate nursing students in the United States participated in the study. More than 90% of the students reported moderate to high levels of stress. Forty-three students (45.3%) scored over 31 points on the PTSD checklist. Students’ stress was positively correlated with PTSD but with no significant associations with their caring behaviors. Faculty support was negatively correlated with perceived stress and PTSD, indicating the significant influence of faculty support on students’ mental health.
Representasi Kelompok Anarko di Media:Bias Media Atas Pemberitaan Kalangan Anarko dan Paham Anarkisme
Authors: Suryana Mohammed Aden
Published: August 2023

Abstract

Penelitian ini bertujuan menganalisis representasi kalangan anarko di media arus utama atas kehadiran mereka pada berbagai aksi sosial mulai dari peringatan Hari Buruh (MayDay) hingga aksi penolakan terhadap Rancangan Undang-Undang Cipta Kerja melalui berbagai simbol, tanda yang mereka munculkan selama melakukan aksi sosial dan hubungan dengan wacana media dalam menggambarkan serta memberitakan kalangan anarko. Metode analisis wacana kritis (critical discourse analysis) digunakan dalam penelitian ini sebagai upaya memahami relasi kuasa antara wacana media dalam menggambarkan kalangan anarko dengan simbolisasi yang dilakukan oleh kalangan anarko untuk menandai kehadiran mereka pada aksi sosial. Hasil penelitian ini mendapati wacana dari media arus utama dalam menggambarkan serta memberitakan kalangan anarko di bentuk atas framing melalui berbagai proses sedemikian rupa, sehingga menghasilkan suatu konten berita yang menyematkan penilaian bahwa kalangan anarko adalah pihak paling bertanggungjawab dalam menciptakan kerusuhan, pengerusakan, vandalisme, hingga mengganggu ketertiban dan kenyamanan umum selama berlangsungnya aksi sosial. Beberapa penelitian lain tentang pembahasan anarko dan media dari lintas disiplin ilmu peneliti sertakan sebagai upaya memperkuat temuan dalam penelitian ini, sekaligus mampu memberikan sudut pandang melalui dimensi lain, yakni studi terkait media dan budaya. Dikarenakan kalangan anarko memiliki tinjauan panjang pada konteks latar belakang dan sejarahnya sebagai bentuk budaya interaksi sosial di masyarakat, dan pada sisi lain, media merupakan subyek penting yang berperan menggambarkan serta memberitakan segenap bentuk fenomena dan permasalahan sosial di tengah masyarakat. Kesimpulan dari penelitian ini, bahwa penggambaran serta pemberitaan negatif terhadap kehadiran kalangan anarko telah menciptakan stigma dan penyematan buruk dari banyak kalangan masyarakat maupun pemerintah untuk tidak menerima kehadiran kalangan anarko di tengah kehidupan sosial, dan bahkan cenderung untuk di represi oleh pihak aparat negara sebagai kepanjangan tangan dari pihak pemerintah.
Power Drives Architectures for Industrial Hydraulic Axes: Energy Efficiency-based Comparative Analysis
Authors: Tiboni Monica
Published: August 2023

In hydraulic systems, energy dissipation can be significant. The pressure drops that can occur in the hydraulic circuit, influenced by the adopted drive architecture, result in an absorbed power often significantly greater than that required by the mechanical system. In this paper, a comparative study of energy efficiency among five drive common architectures in industrial hydraulic axes is carried out. The analysis is applied to a hydraulic blanking press with variable speed and force, a fairly frequent industrial system, e.g. in the production of semi-finished brass products. Standard, regenerative, high-low, variable displacement pump and variable speed drive for a fixed displacement pump configurations have been analysed and compared. An adequate and optimized sizing of the various components of the system has been carried out in each case and subsequently the energy consumption has been estimated for a load cycle common to all the considered cases. The results show that the choice of power generation architecture of the hydraulic system has a very significant impact on energy efficiency and consequently operating costs and carbon footprint. The performed quantification of the potential energy efficiency of the considered drive architectures can be very useful in guiding energy-conscious choices.
Improved Interlaminar Properties of Glass Fiber/Epoxy Laminates by the Synergic Modification of Soft and Rigid Particles
Authors: Liu Jingwei , Tian Shenghui , Ren Jiaqi , Huang Jin , Luo Lin , Du Bing , Zhang Tianyong
Published: August 2023

Poor interlaminar fracture toughness has been a major issue in glass fiber-reinforced epoxy resin (GF/EP) laminate composites. In this paper, soft carboxy-terminated liquid nitrile (CTBN) rubber particles and rigid nano-SiO2 are used to toughen the epoxy resin (EP) matrix to improve the interlayer properties of GF/EP laminate composites. The effects of adding two toughening agents on the mechanical and interlayer properties of GF/EP laminates were studied. The results showed that adding the two kinds of particles improved the mechanical properties of the epoxy matrix. When the additional amount of flexible CTBN rubber particles was 8wt%, and the rigid nano SiO2 was 0.5wt%, the fracture toughness of the matrix resin was increased by 215.8%, and the tensile strength was only decreased by 2.3% compared with the pure epoxy resin. On this basis, the effects of two kinds of particles on the interlayer properties of GF/EP composites were studied. Compared with the unmodified GF/EP laminates, the interlayer shear strength and mode Ⅰ interlayer fracture toughness is significantly improved by toughening agent, and the energy release rate GIC of interlayer shear strength and interlayer fracture toughness is increased by 109.2%, and 86.8%, respectively.
Experimental, Analytical and Numerical Research of Flexural Behavior of RC Beams Strengthened with Ferrocement
Authors: Živković Darko , Blagojević Predrag , Kukaras Danijel , Cvetković Radovan , Ranković Slobodan
Published: August 2023

The practical necessity of strengthening of reinforced concrete structure elements requires a choice of a method which would provide cost-effectiveness, simplicity of construction and durability of the chosen solution. One of the ways is strengthening using the material belonging to the group of micro-reinforced concretes called ferrocement. The paper presents the comparative analysis of some of the results of RC beams exposed mainly to flexure, strengthened with ferrocement elements (strips) applied by gluing on the on the tensed side of RC beams. The results are obtained using the experimental, analytical and numerical research on the adequate models. Strengthening of the beams was performed in the form of four types of ferrocement strips (four different strip widths and four different numbers of wire mesh layers). The numerical non-linear analysis using finite elements method (FEM) was employed, with the introduction of the corresponding characteristics of constitutive material obtained by the experiments on the test specimens. The analytical researches were performed using known analytical calculation methods in order to formulate the model for the calculation of the ultimate and serviceability limit states of the strengthened cross-section. The results presented in the paper, through their comparative compatibility, confirmed the applicability of this strengthening method.
Important Role and Properties of Granular Nanocellulose Particle in the In Vitro Simulated Gastrointestinal System and Lipid Digestibility and Permeability
Authors: Chumchoochart Warathorn , Chandet Nopakarn , Saenjum Chalermpong , Tinoi Jidapha
Published: August 2023

This research evaluated the role and feasibility of the granular nanocellulose particles (GNC) from sugarcane bagasse obtained from enzymatic hydrolysis in reducing lipid digestibility and permeability in the in vitro simulated gastrointestinal (GI) system. GNC concentration (0.02%, w/v) had significantly affected the released free fatty acid (FFA) reduction of approximately 20%. The Pick-ring emulsion of the GNC and olive oil simulation mixture revealed higher oil droplet size distribution and stability in the initial stage than the vortexed mixture formation. The difference in particle size distribution and zeta potential of the ingested GNC suspension and GNC-olive oil emulsion were displayed during the in vitro gastrointestinal simulation. GNC particles interacted and distributed surrounding the oil droplet leading to the interfacial emulsion. The GNC concentration (0.01-0.10%, w/v) showed low toxicity on the HIEC-6 cell, ranging from 80.0 to 99% of cell viability. The release of FFA containing the ingested GNC suspension and GNC-olive oil emulsion was about 30% reduction compared to without GNC digest solution. The FFA and triglyceride permeability through the HIEC-6 intestinal epithelium monolayer were deceased in the digesta containing the ingested GNC and emulsion. This work indicated that GNC represented a significantly critical role and properties in the GI tract and reduced lipid digestion and absorption. This GNC could be utilized as an alternative food additive or supplement in fatty food for weight control due to their inhibiting lipid digestibility and assimilation.
Assessment of Hungarian Consumers Exposure to Pesticide Residues Based on the Results of Pesticide Residue Monitoring between 2017–2021
Authors: Ambrus Árpád , Szenczi-Cseh2 Julia , Biró Lajos , Vásárhelyi Adrien , Szemánné-Dobrik Henriett
Published: August 2023

The short-term intake (ESTI) of Hungarian consumers to pesticide residues was assessed based on 2331 test results obtained during 2017-2021 monitoring program in the frequently analyzed apples, sour cherries, table grapes, peaches, nectarines, peppers and strawberries (23.5% of all samples taken from 119 crops). The age-specific consumption data were obtained from two representative national food consumption surveys (2009 and 2018-2020). The exposure was characterized with Hazard Quotient and Hazard Index considering the acute reference doses of pesticide residues detected in the samples. When ESTI was calculated with all detected “single“ residues and variability factor of 3.6, recommended for evaluation of monitoring results, the HI only exceeded 1 for children <3 years old eating grape (1.50-1.81). HI was <1 when any of the 6 foods were eaten together within one day. Between forty and fifty percent of samples contained 2-23 residues. Though, the individual residue concentrations were below the corresponding MRLs, multiple residues being present in one sample resulted in maximum HI values in apples (1.14); grapes (6.57); peaches and nectarines (2.57); strawberries (2.74); peppers (10.44). Residues with low ARfD values contributed most. Applying HI is simple, but provides only point estimates; therefore, it should only be used in first-tier risk assessment.
On Some Features of the Magnetic Properties of Nuclear and Other Materials
Authors: Kizka Valeriy
Published: August 2023

In this article, we have tried to extend the Neumann–Kopp law concerning the heat capacity of solid compounds to other physical observables for materials represented as mixtures of chemical compounds, alloys, and ceramics. The main goal of this study is to find the intervals of external or internal parameters for a solid compound, within which its physical observable - the magnetic transition temperature for this work, can be expressed in terms of the atomic or molar weighted sum of the magnetic transition temperatures of the constituent elements of a compound. Outside these intervals, we tried to figure out the structure of the variable by which the weighted sum should be multiplied. Thus, for USb–x(ThSb) mixtures with a mole fraction x from 0.36 to 0.55, the magnetic transition temperature of this mixture is expressed in term of the molar weighted sum of the temperature of uranium structural transition associated with a change in the magnetic properties of uranium and of the temperature at which the nature of the magnetic susceptibility of antimony changes. For the magnetic Laves phase compounds Er(Fe0.8–xMn0.2–yCox+y)2, the Curie temperature of the compound is equal to the weighted sum of the Curie temperatures of all elements of the compound, except for Mn, at x = 0.1, y = 0 and y = 0.1. For the paramagnetic Curie temperature of intercalated dichalcogenides CrxМоSe2, it can be expressed in terms of the weighted Neel temperature of chromium multiplied by a variable depending on x, on the atomic numbers of all elements of the compound, and on a parameter proportional to the derivatives with respect to x of the dichalcogenide’s crystal lattice parameters.
Cashew by-Product as Functional Substrate for Development of Probiotic Fermented Milk
Authors: Herkenhoff Marcos Edgar , De Medeiros Igor Ucella Dantas , Garutti Luiz Henrique Grotto , Salgaço Mateus Kawata , Sivieri Katia , Saad Susana Marta Isay
Published: August 2023

Cashew (Anacardium occidentale) processing generates a by-product (CB) with potential for health benefits and could be a favorable ingredient to be added to a probiotic food matrix. This study aimed to assess the functional attributes of CB in fermented milk with a probiotic and a starter culture using in vitro- gastrointestinal conditions. Using a standardized fermentability assay, two strains more adapted to the dehydrated CB were chosen and applied in: Test Formulation (TF, with CB) and Control Formulation (CF, without CB). TF and CF were fermented by the probiotic strain Lacticaseibacillus paracasei subsp. paracasei F19® and the starter Streptococcus thermophilus ST-M6®. During a 28-day refrigerated (6-8 °C) shelf-life study, both strains used in CF and TF were resistant and maintained a population above 8.0 log CFU/mL in the fermented milk. TF had significant increase in total phenolic compounds and greater antioxidant potential during shelf life, along with improved survival of F19® after in vitro-simulated gastrointestinal conditions. The cashew by-product revealed to be promising as a substrate for the strains studied and the presence of CB increased the content of phenolics and antioxidant activity during storage, as well as the gastric resistance to the probiotic., leading to a promising healthy product.
Polish Patients with Epilepsy Opinion on the Generic Medications
Authors: Swakowska Katarzyna , Religioni Urszula , Staniszewska Anna
Published: August 2023

Aim: The majority of medicines used in Poland are generic drugs – substitutions of the original. Objective of the study was to obtain information on the current knowledge about generic medicines among Polish patients with epilepsy. Material and Methods: The study was conducted based on a self-developed questionnaire. The questionnaire consisted of 25 questions, including questions regarding their knowledge about generics, their previous experience and the factors behind these choices. Results: Overall, 1220 questionnaires were analyzed. Among all patients, 66.39% reportedly heard about generics. Of these 61.48% of patients had used the generic drugs in past. A significant proportion of participants had never been recommended to switch to a generic medicine by their health care professional (22.95% physician and 13.93% pharmacist). Statistically relevant differences were observed regarding the respondents’ kind and level of education, place of residence, and net income per household. Conclusions: Significant gaps were identified in the knowledge and perceptions among patients regarding generic medicines especially in relation to efficacy and safety of generic medicines. Efforts must be directed towards increasing public awareness of generic medicines and should also focus on educating patients about generic medicines.
Heavy Metal-Based Nanoparticles as High-Performance X-Ray Computed Tomography Contrast Agents
Authors: Ahmad Mohammad Yaseen , Liu Shuwen , Tegafaw Tirusew , Saidi Abdullah Khamis Ali Al , Zhao Dejun , Liu Ying , Nam Sung-Wook , Chang Yongmin , Lee Gang Ho
Published: August 2023

Contrast agents developed for X-ray computed tomography (CT) offer extremely valuable tools and techniques in diagnostics via contrast enhancements. Heavy metal-based nanoparticles (NPs) can provide high contrast in CT images. These result from a high density of heavy metal atoms with high X-ray attenuation coefficients that exceed that of iodine (I), which is currently used in hydrophilic organic CT contrast agents. Nontoxicity and colloidal stability are vital characteristics in designing heavy metal-based NPs as CT contrast agents. In addition, the particle size must be small for in vivo renal excretion. In vitro phantom imaging studies can provide X-ray attenuation efficiency, which is a critical parameter for CT contrast agents, and the imaging performance of CT contrast agents can be demonstrated via in vivo experiments. This review focuses on in vitro and in vivo studies of various heavy metal-based NPs (metal: Au, Pt, Pd, Ag, Ce, Gd, Dy, Ho, Yb, Ta, W, and Bi) and provides an outlook on their use as high-performance CT contrast agents.
A Brief Research in Machine Learning-Driven Classification of DDoS Attacks in SDN Environment
Authors: Tavangari Shirmohammad
Published: August 2023

In the landscape of network management, software-defined networking (SDN) technology emerges as a dynamic approach, facilitating efficient network configuration for improved performance and monitoring, akin to the agility of cloud computing rather than traditional methods. However, its centralized structure exposes SDN to various attack vectors. Distributed Denial of Service (DDoS) attacks, particularly, pose a significant threat to SDN. This study employs machine learning algorithms and Network Traffic Classification Analysis (NCA) to classify SDN traffic as potential attacks. Notably, Decision Trees (DT) out shine other algorithms with a flawless 100% classification success, spotlighting their supremacy. Through this research, a robust path toward fortified SDN security takes form, where technological prowess and strategic intelligence unite for enhanced defense.
Cubic Nonlinearity of Graphene-Oxide Monolayer
Authors: Neupane Tikaram , Poudyal Uma , Tabibi Bagher , Kim Wan-joong , Seo Felix Jaetae
Published: August 2023

The cubic nonlinearity of graphene oxide (GO) monolayer was characterized by open and closed Z-scan using a nano-second laser of 10 Hz repetition rate with a Gaussian spatial beam profile. The reverse saturable absorption or positive nonlinearity from open Z-scan and valley-peak traces or positive nonlinearity from closed Z-scan was displayed. The reverse saturable absorption could be from a two-photon or two-step excitation process due to the larger absorption in the lower visible and upper UV wavelength region compared with the excitation source. The nonlinear absorption and nonlinear refraction coefficient were estimated to be ~ 2.62x10-8 m/W and 3.9x10-15 m2/W, respectively. This study also reveals the effect of nonlinear absorption on nonlinear refraction traces.
Welding under Service Conditions—Resulting Weld Quality and Fatigue Strength Assessment
Authors: Begemann Florian , Müller Johanna , Unglaub Julian , Dilger Klaus , Thiele Klaus , Hensel Jonas
Published: August 2023

Steel structures, such as bridges, must be continuously maintained. Due to increasing trac loads, design and execution shortcomings, many steel bridges are subject to various types of damage, such as cracks. The bridges must be maintained by crack removal and re-welding the cracks. During this work, the bridge is closed for trac in order to suppress the crack ank movement during welding. As a result, trac loads on other routes are higher, which increases further damage on detour routes and subsequently additional welding work and costs on theses structures. Therefore, the aim is to provide a method that allows welding work on steel structures under running trac, respectively under cyclic loads. First, measurements at a representative steel bridge were conducted to derive gap opening parameters of amplitude and frequency for welding tests under cyclic loads. In a test setup for reproducible and comparable welding tests, specimen were welded under cyclic loads. Deep grinding of the root layer allowed defect-free welding within the range of 0.1 mm amplitude at a frequency of 2 Hz loadings. For such welds, the weld quality and the fatigue strength was comparable to the standard requirements.
Briefly on Stem Cells and Regenerative Medicine
Authors: CHESCA ANTONELLA
Published: August 2023

Stem cells can be used in cellular therapy. This happended in order to replace damaged cells or having aim to regenerate organs. The definition of stem cells can be extended. From this point of view, we can mention taking in consideration the idea in which it is known that these cells form the base of the building body. More than, we can mention that stem cells are characterized by two knowing properties namely differentiation and selfrenewal. Based on the observation that differentiation of adult stem cells into specific derivativescan be controlled by laboratory techniques, it is anticipated that adult stem cells may become the basis of therapies for many, and various types of medical conditions. Taking on stem cells, regenerative medicine (RM) it is known as being one of the hottest topics in biotechnology nowadays. From this purpose, stem cells can be used in regenerative medicine (RM). The principles of regeneration are found in different types of cultures, from long time ago, centuries etc.