bluuebunny/crossref_metadata_2025 huggingface dataset:
The impact of the COVID 19 pandemic on the quality of food security on the polish food market
Authors: Trojanowski Tomasz , Walasek Robert
Published: December 2023

A key event in the last two years of the global economy has been the emergence of the COVID-19 pandemic. Many organisations such as manufacturing and service companies, shops, offices, banks and, above all, medical facilities have been forced to change the way they run business. The development of the pandemic caused concern among people. The Polish society fear of contracting the disease contributed to a change in the way they did their grocery shopping. The aim of the article is to present and characterise consumer behaviour in the way of purchasing food products on the Polish market under the conditions of the COVID-19 pandemic. The article also includes research problems. In order to achieve the specified objective, the report of CBRE Research was used. The article consists of theoretical and empirical part. In the course of the research study it was found that despite the pandemic, consumers on the Polish market did not reduce the frequency of shopping, the monetary expenditures for grocery shopping increased and the number of consumers doing their grocery shopping online increased.
Fellowship of a child in associations under the provisions of the act on associations
Authors: Kijańska Klaudia
Published: December 2023

The article in question refers to the issue related to the participation of minors in associations as one of the forms of implementing the freedom of association of children. Pursuant to the provisions of the Basic Law and acts of international rank, every human being has been granted the freedom of association. This freedom is clarified directly in statutory provisions, which include, inter alia, the Law on Associations. Regulations contained in special provisions contain conditions that must be met in order for a minor to belong to a specific associating organization. Therefore, the basic regulations that clarify the legal situation of the child were indicated, in particular, the restrictions that persons remaining under parental authority have to join the association were presented. The membership criteria for a foreign child were also indicated.
FAMILY HEALTH AND REPRODUCTION WORK IN ASTRAKHAN REGION
Authors: Provatar Natalia , Kashirskaya Elena , Stepina Natalia , Volynskaya Evgenia , Ripp Svetlana , Tabolina Violetta
Published: December 2023

The article presents the results of the analysis of the indicators of the work of the family health and reproduction service in the Astrakhan region, namely the epidemiology, structure, dynamics and caus-es of female and male infertility. The effectiveness of the center's laboratory in relation to such meth-ods as in vitro fertilization and intracytoplasmic sperm injection has been demonstrated. It has been shown that the pregnancy rate after artificial insemination over the past 8 years exceeds the average level in Russia, and the pregnancy rate for transfer corresponds to the all-Russian data.
METHODOLOGICAL APPROACHES TO THE IDENTIFICATION AND MEASURE-MENT OF THE ECONOMIC DETERMINANT OF PUBLIC HEALTH
Authors: Cherkasov Sergey , Kamaev Yuriy , Fedyaeva Anna V
Published: December 2023

The search for dependencies of public health characteristics and economic indicators is practically an urgent task of public health. The purpose of the study is to analyze methodological approaches to the identification and measurement of economic determinants of public health. Materials and methods of research. The existing approaches to the identification and measurement of the economic determi-nants of public health are used as materials. In total, four approaches were studied: assessment of the level of disposable income per household member; assessment of the structure of expenses, in particu-lar the proportion of expenses for the purchase of food; subjective assessment of housing conditions; subjective assessment of the financial situation. An analytical method was used in the research pro-cess. The analysis was carried out in terms of the complexity of using the approach and the results of its use in other public health studies. Conclusion. Four methodological approaches to the identification and measurement of economic determinants of public health have been identified. None of these ap-proaches is optimal and devoid of methodological difficulties when using it. In any case, it is not pos-sible to avoid subjectivity in the assessment. However, human behavior and his attitude to his health, in particular, is determined precisely by subjective perception, and not by clearly defined and verifia-ble objective economic characteristics. Therefore, the use of such information in the study of the in-fluence of economic determinants on public health indicators is quite acceptable, and the most appro-priate approach seems to be to use several approaches with further comparative analysis of the results obtained.
DUODENAL DYSTROPHY (PARADUODENAL PANCREATITIS): CLINICAL OBSERVATION
Authors: Molchanova Yuliya R , Mustafin Robert D , Malafeev Ivan , Gadzhiyev Kamalutdin
Published: December 2023

The authors provide a clinical observation of a relatively rare pathology – paraduodenal pancreatitis – in a patient who, given the ineffectiveness of conservative treatment in gastroenterologists, underwent surgery: gastropancreatoduodenal resection. Despite the complications of the postoperative period, curative measures were successful, and the patient was discharged with recovery.
Induction method of the solidification front localization
Authors:   Institute of Continuous Media Mechanics UB RAS, Losev G. L. , Eltishchev V. A. ,   Institute of Continuous Media Mechanics UB RAS
Published: December 2023

The paper describes the development and testing of an inductive sensor designed for determining the position of the solidification front of electricallyconductive melts. The operation of the sensor is based on the eddy current transducer principle. We compared induction and ultrasonic methods of localizing the solidification front of a gallium alloy on a model problem of directional solidification of liquid metal in a flat vertical layer. The principles of the induction method are described, its ap-plicability is shown, the measurement error has been found.
A water-oil emulsion dynamics in an inhomogeneous high-frequency electric field
Authors:   Institute of Continuous Media Mechanics UB RAS, Shmyrov A. V. , Mosheva Е. А. ,   Institute of Continuous Media Mechanics UB RAS, Mizev А. I. ,   Institute of Continuous Media Mechanics UB RAS, Siraev R. R. ,   Perm National Research Polytechnic University
Published: December 2023

The article presents the results of an experimental and numerical study of the behavior of a water-oil emulsion in an inhomogeneous electric field conducted to investigate the prospects of using the dielectrophoretic effect for the separation of liquid dispersed media. The problem is considered under conditions of neutral buoyancy of the dispersed phase, when the dynamics of droplet inclu-sions is determined solely by the action of the dielectrophoretic force. The inhomogeneous electric field was created by a system of coaxial cylindrical electrodes. The experiments were carried out in an alternating electric field with a frequency of 10 kHz, which made it possible to avoid the mani-festation of electrophoretic and electrokinetic phenomena. We studied both the dynamics of indi-vidual droplets in an electric field and the change in the content of the dispersed phase at different moments of time. It was found that water droplets always move in the direction of the intensity gradient, eventually accumulating on the internal electrode. The time it takes a single drop to reach the inner electrode significantly depends on its size and the initial distance to the inner electrode, the magnitude of the effective voltage, and the permittivity of the dispersion medium. It is shown that when choosing the initial distance from the drop to the inner electrode and the total time of the drop movement as measurement units for the current distance and time, respectively, the results of all experiments form a single dependence in these dimensionless variables. It was found that the emulsion separation rate increases with an increase in the average droplet size, the effective volt-age, the dielectric constant of the dispersion medium and the initial concentration of droplets. It is shown that in the latter case, the dependence is due to the presence of cases of droplet coalescence, the frequency of which increases with increasing concentration. The results obtained during numer-ical simulation are in good quantitative agreement with the experiment. In conclusion, the results of the laboratory and numerical experiments are compared, the advantages of the proposed method of electrodehydration in comparison with existing approaches are discussed.
Features of the formation of aluminum thin films under the influence of ultrasonic vibrations of the substrate
Authors:   Tomsk State University of Control Systems and Radioelectronics, Urazbekov A. E. , Sakharov Yu. V. ,   Tomsk State University of Control Systems and Radioelectronics
Published: December 2023

Atomic force and scanning electron microscopy methods were used to study aluminum thin films grown on sitallic substrates. This study is the first to show that ultrasonic vibrations of the substrate during deposition stimulate the formation of islands on the film surface. However, the average height and lateral dimensions of the islands are not significantly affected by ultrasonic perturba-tions of the substrate.
Hydraulic resistance of an inspection projectile motion control system with a streamlined valve in a low-pressure gas pipeline
Authors:   PSO «NefteGasDiagnostika», Muginov R. R. , Pavlov D. A. ,   Perm National Research Polytechnic University, Peshcherenko M. P. ,   Perm National Research Polytechnic University, Peshcherenko S. N. ,   Perm National Research Polytechnic University, Perminov A. V. ,   Perm National Research Polytechnic University
Published: December 2023

The main problem while developing inspection shells for low-pressure gas pipelines is mainte-nance of their uniform motion under the action of the pumped gas. In the present work, we propose a solution to this problem based on changing the cross-section of the central flow channel of the smart pig by moving an axially symmetric valve along the axis of the channel. Two types of valves with a drop-shaped and a cone-shaped front part were considered. The choice of the valve shape and size can be made by calculating the forces acting on the smart pig during gas flow. The prob-lem was solved by the methods of computational fluid dynamics under the assumption of axial flow symmetry. The gas was considered to be compressible. The calculations showed that the total force acting on the valve and walls of the flow channel does not depend on its shape and, depending on the valve position, can change by more than two times. The optimum length of a drop-shaped valve is nearly half that of a conical valve. Although the drop-shaped valve produces a more inhomoge-neous velocity field than the conical valve, the former is more acceptable for regulating gas flow through the central channel of the inspection smart pig.
Two-dimensional Poiseuille flow of a Newtonian fluid with temperature-dependent viscosity
Authors:   Institute of Continuous Media Mechanics UB RAS, Knyazev D. V.
Published: December 2023

The problem of a two-dimensional Poiseuille flow of a Newtonian fluid with a viscosity exponen-tially dependent on temperature under the influence of longitudinal pressure and temperature gra-dients is reduced to a two-parameter boundary value problem for a third-order ordinary differential equation with respect to a dimensionless unknown characterizing the change in temperature across the channel. In the range of negative values of the dimensionless longitudinal temperature gradient, the solution has two branches. By closing, the branches form a boundary on the parameter plane beyond which Poiseuille-type flows do not exist. The solutions belonging to different branches dif-fer in the flow rate and intensity of heat transfer by the liquid through solid boundaries. The latter circumstance entails deceleration of the flow in the near-wall areas. In the region of positive values of the dimensionless longitudinal temperature gradient, the solution is unique. With an increase in the mentioned parameter, the heat flow to the liquid from the walls increases, which entails the formation of a more bulged velocity profile compared to the isothermal case. At sufficiently large values of the longitudinal temperature gradient, there appears a ‘stick’ flow with a uniform velocity distribution everywhere except for narrow layers near solid boundaries. It is shown that the rate is proportional to the ratio of the densities of the transverse and longitudinal heat flows. Explicit ex-pressions for the pressure and shear stress fields are given. The properties of monotonicity of the velocity and temperature profiles as functions of the transverse coordinate have been studied. It is shown that, regardless of the values of the dimensionless parameters of the problem, the velocity has a positive maximum on the central axis of the channel and monotonically decreases to zero at the solid boundary.
Effect of a bias field on the longitudinal dynamic magnetic susceptibility of uniaxial antiferromagnetic nanoparticles
Authors:   Institute of Continuous Media Mechanics UB RAS, Krylasova O. S. ,   Perm State University, Poperechny I. S. ,   Institute of Continuous Media Mechanics UB RAS,   Perm State University
Published: December 2023

This paper develops a kinetic theory of the low-frequency (far from the microwave range) longitu-dinal linear magnetic response of uniaxial antiferromagnetic nanoparticles. The proposed formal-ism is based on the Fokker-Planck-type equation for the distribution function of orientations of the antiferromagnetic vector. For this equation, a method of numerical solution is developed for the situation when a harmonic linearly polarized magnetic field and a constant bias field are co-aligned and applied along the anisotropy axis of the particle. Frequency dependencies of the real and imag-inary parts of the longitudinal dynamic magnetic susceptibility of the particle are calculated for dif-ferent values of the bias field magnitude. It is shown that in the presence of a constant field the magnetic response of the particle to a probing field decreases and the absorption maximum shifts to higher frequencies. Provided that the bias field is non-zero, the position of the specified maximum is not fixed but changes with the value of the uncompensated magnetization. It has been established that in the low frequency range, dispersion of the longitudinal dynamic magnetic susceptibility of the uniaxial antiferromagnetic nanoparticle is determined by a single Debye-type term.
Ways of Expressing Public Sentiments in the Texts of Politically-Oriented Internet Community in the VKontakte Social Network
Authors:   Perm State University, Krizhanovskaya Elena M.
Published: December 2023

The article discusses the most typical ways of expressing public mood that are employed by the participants in discussions in a politically-oriented Internet community. Public mood is understood as a form of mass political consciousness’ existence. The study was conducted on the material of texts posted in the Politika (Politics) community of the VKontakte social network from September 21, 2022 to January 6, 2023. On the basis of the Internet posts and comments to them, the research revealed the preferences of Internet users in choosing the pragmatic type of utterance. The pragmatic type is determined by the predominance of a certain component of public moods (emotional, rational, or rational-emotional). The correspondence between the prevailing type of the Internet users’ reaction and the pragmatic type of utterance was established taking into account the speech act theory developed by J. Austin and J. Searle and the typology of speech acts proposed by N. I. Formanovskaya. The paper points out the predominance of the emotive dominant in the structure of the Russian-speaking Internet users’ public attitudes. It is realized in the employment of mostly rogative, directive, and representative speech acts in the texts under analysis. Other types of speech acts (expressives, contactives) mainly implement the phatic function of communication in the Internet community. The paper concludes that the use of the identified types of speech acts contributes to the expression of subjective experiences of the community members. It also allows the authors of the texts to propose their own scenarios for the development of the political situation under discussion and to influence the formation of attitudes of other Vkontakte users.
An Autobiographical Novel by Sophia Zaitseva ‘The World Through the Child’s Eyes’ in the Context of the Literary Tradition of Leo Tolstoy (‘Childhood’)
Authors:   Perm State University, Arustamova Anna A. , Jingru Zhen ,   Perm State University
Published: December 2023

The article examines The World Through the Child’s Eyes, a novel being the first work of the autobiographical trilogy by Sophia Zaitseva, a writer belonging to the first wave of Russian emigration. The novel is discussed in the context of the literary tradition of Leo Tolstoy (the story Childhood). It is argued that the structure of the trilogy correlates with the structure of Tolstoy’s trilogy Childhood, Adolescence, Youth. In the story by Zaitseva, there are such characteristic features of the ‘tale of childhood’ as a child hero discovering the world, the space of the house as the organizing space of the character’s life, the image of the family way of life, the development of the principles of depicting the inner world of a child. The study draws parallels with the Tolstoy’s work on the figurative, motivational, spatial, plot levels of the artistic system of the story The World Through the Child’s Eyes. Special attention is paid to the comparison of the images of Nikolenka and Sonya, to the principles of analyzing the inner world of the characters; the paper identifies the similarities and differences in using the method of psychologism, as well as the role of the principle of detachment in the creation of images of the heroes. The article examines the organization of space in The World Through the Child’s Eyes, the relationship of one’s own and another’s in the artistic structure of the works, analyzes the interaction of cultures in Zaitseva’s story. The comparison of the works provides a better understanding of the historical and cultural context of the story by Zaitseva and the role of the tradition of Russian classics in her work.
Modification of the paradigm of socio-cultural development of local communities in the mirror of modernization
Authors:   Institute of Philosophy and Law, Siberian Branch of the of the Russian Academy of Sciences, Shmakov Vladimir S.
Published: December 2023

The article deals with the problem of the evolution of socio-cultural development, analyzes the trends of socio-cultural transformation of local communities of Eurasia. The use of socio-cultural, systemic approaches allows us to formulate the fundamental principles of explaining and understanding the dynamics of socio-cultural development. In the course of the evolution of culture and sociality, there arise contradictions associated with the confrontation between liberal standards and traditional values. In the process of global and local structuring, traditional sociocultures are modified into intermediate forms characterized by transitional positions. The Eurasian socio-cultural space is in a state of expansion, diffusion, there is a state of anomie. There is a gap in the construction of the socio-cultural environment between the past and the present, historically formed socio-cultural structures and institutions are disintegrated. The balance of the socio-cultural space is disturbed. The mechanism of socio-cultural synthesis based on the traditional system of values is deformed and ceases to work. The breakdown of traditional socio-cultural ties and relations worsens the reproduction of the social and human capital of communities. The processes of compression, convection of the socio-cultural world, on the one hand, determine attempts to preserve the foundations of socio-culture, while, on the other hand, the pressure of liberal concepts on socio-cultural development is noted, which contributes to the expansion of the socio-cultural space, being the basis of the emerging paradigm of socio-cultural development. In their design, the models of socio-cultural space development combine tradition, modernity and the archaic as the basic structures of an evolving local community. The principle of coherence helps to ensure the identification of all components and modifications of the socio-cultural system. The practical significance of the research lies in the designation and explanation of the dynamics of the development of the Eurasian socio-cultural space in the context of globalization processes affecting the content, pace, forms and results of evolution, which determines the need to create planning and management mechanisms that would contribute to the preservation of the traditions of socio-cultural development of local communities.
Interdisciplinary approach to the study of personal well-being
Authors:   University of Tyumen, Vakarina Elena A.
Published: December 2023

The purpose of the study is to analyze the phenomenon of personal well-being in the context of the interdisciplinary approach. The issue of happiness and well-being of a person has been the focus of philosophers’ attention since ancient times. Ancient Greek philosophers tried to define its essential content and spoke of it as the highest good, virtue, prosperity. In the Middle Ages, well-being begins to take on a different meaning and is associated with maintaining a balance in the spiritual and material spheres. The enrichment of the soul occurs due to the desire for both «heavenly» bliss, religion, and the receipt of «earthly» joys and pleasures. In the Modern Era, the study of well-being continues through eudemonic and hedonistic approaches. According to them, well-being is associated with obtaining pleasure and the absence of pain as such. In modern times, especially since the 1980s, researchers in the field of psychology, sociology, economics, and other scientific fields consider the problem of human well-being as one of the leading areas. Well-being is a construct that ensures the positive functioning of a person, the improvement of his mental health. This paper gives an idea of a comprehensive study of well-being as a source of attention in different fields of knowledge, showing the ambiguity in understanding and describing the existing problem. The interdisciplinary approach demonstrates the desire to develop a common concept of well-being, but there are noticeable gaps that make it difficult to systematize and develop a single definition of this construct.
PURIFICATION OF HYDROCARBON NATURAL GASES FROM HYDROGEN SULFIDE IN A TUBULAR TURBULENT APPARATUS
Authors: Shevlyakov Fedor B. , Litvyakov Ivan S. , Mirsayapova Ilvina R.
Published: December 2023

Purification of gases and petroleum products from sulfur compounds has always been one of the main problems of oil and gas processing and gas transportation. In recent decades, this problem has become even more urgent due to the tightening of requirements for the quality of petroleum products and the transition to high requirements for combustible natural gas supplied and transported through main gas pipelines. To ensure standardized indicators for hydrogen sulfide in gas, purification of this component is required. Traditionally, desulphurization of light hydrocarbon raw materials is reduced to removing hydrogen sulfide with amine solutions and removing mercaptans with aqueous-alkaline solutions using absorption equipment. To purify natural petroleum gas from hydrogen sulfide, it seems promising to use direct-flow vortex devices with small dimensions to create the required interfacial surface, as well as low hydraulic resistance. Based on the high rate of reaction of hydrogen sulfide with a hydrogen sulfide absorbent based on formaldehyde, research has been carried out to develop a technology for purifying associated petroleum gas using a tubular turbulent apparatus. By creating a high specific contact surface between the gas phases and the hydrogen sulfide absorber using the proposed technology, high efficiency in purifying associated gas from hydrogen sulfide was achieved under field conditions. Purified associated petroleum gas with a hydrogen sulfide content of 0.003 g/m3 complied with the STO Gazprom standard 089-2010 and the Technical Regulations of the Eurasian Economic Union 046/2018.
Repeated Treatment with Antimalarial Agents Causes In Vitro Liver Toxicity
Authors:   Department of Pure and Applied Zoology, College of Biosciences, Federal University of Agriculture Abeokuta, Ogun State, Nigeria, Audu David , Patel Vinood B. ,   School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK, Petagine Lucy ,   School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK, Idowu Olufunmilayo A. ,   Department of Pure and Applied Zoology, College of Biosciences, Federal University of Agriculture Abeokuta, Ogun State, Nigeria, Idowu Adewumi B. ,   Department of Pure and Applied Zoology, College of Biosciences, Federal University of Agriculture Abeokuta, Ogun State, Nigeria
Published: December 2023

Aim In Africa’s malaria-endemic regions, artesunate/amodiaquine (A/A) and artemether/lumefantrine (A/L) are the antimalarial medications that are most frequently prescribed. Antimalarial medications could be overused if they are self-prescribed based on symptoms rather than a parasitological diagnosis. This investigation looked at potential cytotoxic and oxidative stress effects following three dosage treatments spaced 24 h apart. Method Artesunate (50 μM and 100 μM), Amodiaquine (1 μM and 10 μM), Artemether (200 μM and 400 μM), and Lumefantrine (200 μM and 400 μM) were administered to HepG2-derived VL-17A for up to 72 h. Result With a downward trend from 24 h to 48 h to 72 h, the study findings showed that repeated administration of these medications greatly reduced cell viability. Additionally, for artemether 200 μM treatment, the reactive oxygen species (ROS) levels increased after 24 h and 48 h but considerably decreased after 72 h. The ROS levels in artesunate, amodiaquine, artemether 400 μM, and lumefantrine were also noticeably lower after 72 h. Conclusion The results of this experiment show that repeated applications of anti-malaria drugs, A/L and A/A to HepG2 liver cells reduced their viability in a manner that was consistent. These findings have significant implications for those who use antimalarial medications as a preventative measure without a diagnosis of parasite infection.
An Update on the Etiopathogenesis of NAFLD including Organokines for Early Diagnosis and Improvement of Management and Preventing Early HCC Development: A Narrative Review
Authors:   Centre for Human Reproduction 721, Jalandhar 144001, Punjab, India, Kaur Kulvinder K. , Allahbadia Gautam N. ,   Swami Satyanand Hospital, Jalandhar 144001, Punjab, India, Singh Mandeep ,   Swami Satyanand Hospital, Jalandhar 144001, Punjab, India
Published: December 2023

Background Earlier, we reviewed different methods of treating non-alcoholic fatty acid liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), concentrated on organokines liberated by adipose tissue (AT) and liver (adipoklines and hepatokines), adipokines in obesity with heart failure (HF), and myokines like irisin in exercise in obesity, and thought they might work as diagnostic and therapeutic targets in NAFLD and NASH with hepatocellular carcinoma (HCC). These are believed to be biological markers that can anticipate the robustness of NAFLD from NAFLD to HCC. Methods We conducted a narrative review utilizing search engines PubMed, Google Scholar; Web of Science; Embasee; Cochrane Library utilizing the MeSH terms “NAFLD”; “NASH”; “Organokines”; “Adipokines”; “Hepatokines”; “Myokines”; “Osteokines”; “Stellakines”; “Fructose”; “Gut Microbiota”; “Insulin resistance (IR)”; “Crosstalk of organokines”; “Obesity”; “T2D” from last 10-years till date in 2023. Results We found a total of 750 articles, out of which we selected 95 for this review. No meta-analysis has been done. Conclusion As acknowledged earlier, NAFLD possesses the characteristics of simple steatosis, while NASH progresses to hepatic steatosis, lobular inflammation, and an escalated diameter of hepatocytes (ballooning of hepatocytes) with or without fibrosis in 20% of cases of NAFLD. Usually, it is correlated with metabolic diseases like obesity, type 2 diabetes mellitus (T2DM), and metabolic syndrome (MetS); hence, the liberation of organokines gets manipulated in a way that might aid in the etiopathogenesis or propagation of disease. We observed that insulin resistance (IR), oxidative stress (OS), mitochondrial impairment, fructose, and gut microbiota reflected factors taking part in the development and propagation of NASH. Alterations in various organokines (inclusive of adipokines, hepatokines, myokines, osteokines, and a newer one, stellakines) produced by hepatic stellate cells (HSCs) were further seen to directly or indirectly aid in the exacerbation and propagation of disease or cause dysfunctional homeostasis. Moreover, we discuss the role of stellakines in detail, and targeting silymarin might give us an efficacious drug for the early treatment of NAFLD or NASH.
The Impact of the COVID-19 Pandemic on the Prevalence and Severity of Internet Addiction: Current and Future Public Health Challenges
Authors:   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Belmasrour Rachid , Fillali Abdelmounaim ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Kendrick Naya ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Stoudemire Serene ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Clement Christian ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Tietzel Illya ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Elaasar Mostafa ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA, Rezk Bashir M. ,   Department of Natural Sciences, Southern University at New Orleans, 6400 Press Drive, New Orleans, LA 70126, USA
Published: December 2023

The coronavirus disease-2019 (COVID-19) pandemic altered the lifestyle of a substantial number of individuals who were compelled to undergo quarantine in their residences. Consequently, they relied heavily on the Internet for studying, online teaching, official meetings, communication, entertainment, conferences, and work. There is a possibility that the pandemic has led to a greater inclination towards internet addiction compared to both pre-pandemic and post-pandemic periods. Internet addiction is a behavioral disorder characterized by excessive and compulsive internet use that interferes with daily life activities. The prevalence of internet addiction has been a concern for several years, with an increasing number of people spending considerable amounts of time online. Several studies provide evidence that the occurrence of internet addiction varies significantly across countries and cultures, with certain regions demonstrating higher rates than others. This review reveals a substantial surge in the prevalence of internet addiction during the COVID-19 pandemic. The most notable discovery is that internet addiction has undergone an almost threefold increase during the COVID-19 pandemic when compared to its occurrence in the previous decade. During the COVID-19 pandemic, Nigeria had the highest recorded prevalence rate of internet addiction, reaching 88.1%. In contrast, Turkey had the lowest observed rate of internet addiction at 4.8%. Accordingly, we stress the importance of enhancing our awareness to recognize internet addiction as a novel global syndrome arising from progressively complex public health and psychosocial circumstances.
External Parasites of Fish: A Comprehensive Overview
Authors:   School of Veterinary Medicine, Ambo University, P. O. Box 19, Guder, Ethiopia, Kebed Isayas A. , Gebremeskel Haben F. ,   School of Veterinary Medicine, Ambo University, P. O. Box 19, Guder, Ethiopia, Ahmed Abrahim D. ,   Ethiopian Agriculture Authority, Eastern Branch, Dire Dawa, Ethiopia, Kebede Shimalis ,   Gomma District Agriculture Office, Jimma Zone, Oromia, Ethiopia, Dule Gelan ,   School of Veterinary Medicine, Wolaita Sodo University, Wolaita Sodo, Ethiopia
Published: December 2023

Fishes are a diverse group of gill-bearing aquatic craniate animals characterized by their limbless bodies. These creatures are susceptible to various diseases, both infectious and non-infectious, which can significantly impact fish populations. One critical factor contributing to reduced fish productivity is parasitic infestation. This paper aims to provide a comprehensive overview of the external parasites that affect fish. In aquatic environments, host-parasite interactions are complex, with crustacean parasites often playing a prominent role in fish diseases and the management of captive and cultured fish stocks. Among the most common crustacean parasites of fish, we find copepods, brachiura, and isopods. Copepods, for example, encompass two major crab families: Ergasilidae and Lernaeidae. In contrast, Branchiura (Argulidae) and Isopoda members, both parasitic, generally exhibit larger body sizes than copepods. While these parasites may cause only mild harm to their hosts when present in small quantities, copepods are the most prevalent crustacean parasites in various aquatic habitats, including freshwater, brackish water, and saltwater. In the context of fish health and productivity, prevention often proves more effective than treatment. Implementing strategies such as strict controls when introducing new fish to a newly established tank, robust quarantine procedures, mechanical removal using forceps, freshwater or saltwater dips, and water treatments involving organophosphates can significantly reduce the incidence of external parasite infestations. Therefore, exercising caution when introducing new fish into a population is essential.
Storytelling e o ensino-aprendizagem na graduação de enfermagem
Authors: Nunciaroni Andressa , Correa Vanessa , Silva Renata
Published: December 2023

Metodologias ativas potencializam a caracterização da aprendizagem como um processo dinâmico e significativo. O presente estudo objetivou analisar o uso da Storytelling aplicada de forma remota como atividade de ensino para discentes de um curso de graduação em Enfermagem participantes de uma liga acadêmica. Realizou-se um estudo transversal analítico e qualitativo, cujos participantes foram discentes vinculados à uma universidade pública federal, na cidade do Rio de Janeiro (Brasil). A produção dos dados deu-se por formulário eletrônico e grupo focal remoto, demonstrados por estatística descritiva e análise de conteúdo temático categorial, sendo as Unidades de Significação identificadas por colorimetria, a partir do significado de cada Unidade de Registro, originando duas categorias a partir da percepção dos discentes: Storytelling durante o processo de ensino-aprendizagem e Storytelling como metodologia participativa. Os resultados demonstram a percepção dos discentes quanto ao planejamento e vivência de ensino-aprendizagem no uso da Storytelling e a construção coletiva da estória apresentada, a partir dos desafios e contribuições que o referido processo trouxe para a sua formação. Observa-se a Storytelling como uma estratégia mobilizadora de emoções e sentimentos, dinâmica e significativa, adaptável ao formato digital e possivelmente aceita entre os discentes da graduação. Sugere-se o seu uso na educação e na pesquisa para medir a sua eficácia e eficiência.
Systematic errors in setting the angular position in matrix simulators of the radio-electronic environment
Authors:   Novosibirsk State Technical University, Russian Federation, Kiselev Alexey V. , Tayurov Anton V. ,   Novosibirsk State Technical University, Russian Federation
Published: December 2023

Estimates of the error in setting the angular position of the apparent center of radiation by a matrix simulator, which are, in fact, its systematic error, are considered. It is shown that the cause of the error is the replacement of the simulated point emitter by several points. Analytical relations have been obtained that allow calculating the magnitude of the systematic direction fin-ding error based on the characteristics of the matrix simulator and the radiation pattern of the receiving antenna operating with the matrix simulator of the radio engineering system. It is shown that the considered error is completely determined by the nonlinearity of the direction finding characteristic of the antenna. It is established that the error is most significant when simulating the apparent center of radiation outside the matrix. For the area inside the matrix, the dependences of the maximum error values and their angular positions on the shape of the antenna pattern and the specified position of the radiation point are obtained. The relations allowing to estimate errors depending on the ratio of the angular dimensions of the matrix, the width of the antenna radiation pattern and the coefficients of approximation of its radiation pattern are obtained. The reliability of the obtained results is confirmed by comparison with the results obtained by numerical simulation. The results of the work can be used to solve applied problems related to the development of matrix simulators and simulation complexes based on them, as well as to predict their accuracy characteristics.
Study of combustion of liquid hydrocarbon fuel when sprayed with superheated water vapor, carbon dioxide and their mixture
Authors:   Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Kopyev Evgeny P. , Shadrin Evgeny Yu. ,   Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Mukhina Mariia A. ,   Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Sadkin Ivan S. ,   Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk,   Novosibirsk State Technical University, Russian Federation
Published: December 2023

Reducing the anthropogenic impact on the environment is one of the priority tasks of our time. One of the sources of pollution is the burial of a large amount of substandard combustible waste, including hydrocarbon waste, which is not currently in demand, as well as solid and toxic substances generated during combustion. The solution to the identified problems is possible through the Waste-to-Energy approach, aimed at involving combustible waste in the fuel balance, with the organization of low-temperature combustion by adding various diluent gases - carbon dioxide or water vapor. In this work, using diesel fuel as an example, the combustion characteristics of liquid hydrocarbons in the presence of a mixture of superheated steam and carbon dioxide in a spray burner were experimentally obtained and compared to identify the features and advantages of their use in Waste-to-Energy approaches. It is shown that for all studied modes a high completeness of fuel combustion is observed. Analysis of the composition of combustion pro¬ducts shows that when replacing superheated steam with carbon dioxide, the content of CO and NOx in combustion products increases by 25%. At the same time, all studied modes comply with the EN:267 standard. The results show that it is possible to implement approaches of adding carbon dioxide, water vapor and a mixture of both to convert waste into energy.
Philosophy of the Modern Era and Postmodernism
Authors:   Lomonosov Moscow State University, Russian Federation, Savrey Valery
Published: December 2023

In the history of philosophical thought the past twentieth century was marked by a great turning point caused by the collapse of the previous intellectual, cultural, and attitudinal paradigm characteristic of the classical modern era. Acting as the destroyer of this paradigm, postmodernism prioritized the “effectiveness of language”, freeing it from morality and truth, and reducing it to the transmission of information regardless of the degree of honesty or dishonesty of the position taken by the interested party. It is in the philosophy of postmodernism that language in its functional and especially in its axiological relation has undergone a violent degradation. Unlike postmodernism, the philosophy of the modern era has never ceased to live the history and heritage of world philosophical thought, the importance of which in the history of cultures and civilizations has always been recognized as the beginning of all subsequent intellectual and technical achievements of mankind. The key place in the article is occupied by the analysis of Heidegger’s fundamental ontology, which creates a “theology without God” and rejects divine reality, without the realization of which the only possibility remains despairing pessimism. In postmodernism, language ceases to be an instrument of cognition of reality, remaining an instrument of the strategy of persuasion. Thus, philosophy should not abandon its own purpose in the search for teleological meaning in the evaluation and interpretation of human being in the world. The new conceptualization of the existence of the world and man was formalized in the philosophy of existentialism and postmodern. These approaches to the interpretation of man, his language, thinking, consciousness and faith inherent in the philosophy of J.-P. Sartre, N.A. Berdyaev, K. Jaspers, M. Heidegger, J. Derrida, M. Foucault and R. Rorty form the subject of this article. The author shows that it is the philosophy of classical modernity, based on Christian doctrine with its orientation to the life of the future century, is an alternative to postmodernism.
Communication, Solidarity, and Cooperation in the Digital Era
Authors: Marí Sáez Víctor
Published: December 2023

Review of the book Comunicación Solidaria en el Capitalismo Digital. Teorías, Metodologías y Prácticas.
Semigroups of class Co on l2 (Z)
Authors:   Fac. Ciencias Matemáticas, Universidad Nacional Mayor de San Marcos, Lima-Perú., Santiago Ayala Yolanda
Published: December 2023

In this work we begin by studying the generalized multiplication operator M on the l2(Z). We prove that this operator is not bounded, is densely defined and symmetric and therefore does not admit a symmetric linear extension to the entire space. We introduce a family of operators on the l2(Z) space with n even and demonstrate that it forms a contraction semigroup of class Co, having −M as its infinitesimal generator. We also prove that if we restrict the domains of that family of operators, they still remain a contraction semigroup. Finally, we give results of existence of solution of the associated abstract Cauchy problem and properties of continuous dependence of the solution in connection to other norms.
A non-parametric dynamic model for measuring efficiency
Authors:   Departamento de Matemáticas, Universidade de Aveiro, Aveiro, Portugal., Murillo Kelly Patricia
Published: December 2023

Conventional efficiency evaluation systems present little diversity in the type of variables considered. This aspect generally leads to errors in the application of the models and in the corresponding interpretation of results. This study proposes a dynamic model to measure the efficiency of decision-making units, based on non-parametric Multidirectional Efficiency Analysis (MEA). The model presented here considers a complete structure, which includes intertemporal variables (desirable/undesirable intermediate inputs and outputs), discretionary/non-discretionary inputs; desirable/undesirable inputs and outputs. Dynamic score is defined first in a particular version and then in a more general version, considering two optimization problems. The directional contribution of each variable is examined, showing excess inputs and deficit outputs. In addition, a dynamic inefficiency index to measure the number of times each input was used inefficiently, is presented for both desirable and undesirable cases.
Computational methods in algebraic geometry
Authors:   Instituto de Matemática y Ciencia Afines, Universidad Nacional de Ingeniería, Lima, Perú., Palacios Joe , Cabanillas Ruth ,   Universidad Nacional Mayor de San Marcos, Lima, Perú.
Published: December 2023

In this article we give a general description of the field of algebraic geometry and its computational aspects using Macaulay 2. In particular, we present an application to the bidimensional robotic arm of n spans for any natural n.
Zona de amortecimento do Parque Estadual da Cantareira, perímetro do Núcleo Pedra Grande – Município de São Paulo, um comparativo após sua implantação.
Authors: Florindo Katia Bastos , Cortese Tatiana Tucunduva Philippi
Published: December 2023

Diante da grave perda de biodiversidade em São Paulo, a implementação de estratégias para evitar o colapso desses recursos é urgente. Deste modo, as áreas protegidas, suas zonas de amortecimento e planos estratégicos unificados são instrumentos de suma importância para a conservação e proteção dessas áreas protegidas. O presente trabalho tem por objetivo analisar parte da zona de amortecimento do Parque Estadual da Cantareira no trecho que envolve o município de São Paulo. Neste sentido, a pesquisa baseou-se em referências bibliográficas e programas de georreferenciamento. Destacam-se como resultados mais relevantes desta pesquisa a necessidade de inclusão de propostas mais efetivas que envolvam toda a sociedade e a implantação de políticas públicas regulatórias unificadas em busca de uma cidade mais inteligente e sustentável, fortalecendo a zona de amortecimento e a proteção mais efetiva do Parque.
Control System Design for Water Pump Activation in PLC-based Smart Hydroponic Design
Authors: Hidayat Muhammad Edy
Published: December 2023

Food security is one of the issues that is one of the concerns to the country government, and one of the independent efforts made by community on their awareness to meet and achieve food needs on a domestic scale in their respective households is through hydroponic for cultivation of vegetables. Hydroponics works by using water as growing medium instead of soil, however, the use of water as a planting medium requires special treatment thus the plants is able to grow optimally. To ensure that the air content in the water used as a hydroponic growing medium is properly available, a water regulation process is needed. The process of water regulation in the hydroponic system uses regulation of the activation of the water pump motor so that water can be regulated and electrical energy efficiency can still be achieved. This study aims to design and test a PLC-based automation system for the purposes of setting the activation of a water pump in a hydroponic system based on the sunlight conditions in the hydroponic installation being built. By using a light sensor (LDR) to measure the intensity of sunlight in the hydroponic system being built, the activation of the pump motor can be controlled through the use of a PLC device that processes the information obtained from the sensor used. The results of the tests carried out provide information that the designed system has proven effective for use in hydroponic systems with pump water regulation time from 08:00 AM to 04:00 PM.