bluuebunny/crossref_metadata_2025 huggingface dataset:
Compression Behavior and Textures of Ti57-Nb43 Alloy at High Temperatures
Authors: Szűcs Máté , Kárpáti Viktor , Mikó Tamás , Tóth László S.
Published: November 2023

The mechanical behavior, microstructures, as well as the crystallographic textures of the Ti57-Nb43 alloy were investigated on cylindrical specimens compressed at high temperatures, in the range of 700–1000 °C, and strain rates between 0.001 and 1.0 s−1. Hardening, followed by softening behaviors, were observed as a function of strain due to the occurrence of dynamic recrystallization/recovery in hot deformation. The modified five-parameter Voce-type equation described well the stress–strain curves, but, for the present alloy, it was also possible with only four parameters. A new two-variables polynomial function was employed on the four parameters that described well the flow curves as a direct function of temperature and strain rate. It permitted the reduction in the number of parameters and had the predictive capacity for the flow stress at any temperature, strain, and strain rate in the investigated range. The crystallographic textures were similar at all temperatures, with an increase in intensity from 900 °C. The textures could be characterized by a double <100> and <111> fiber and a unique component of (001) <110>, the latter inherited from the initial hot-rolling texture. Viscoplastic polycrystal self-consistent deformation modeling reproduced the measured textures showing that dynamic recrystallization did not alter the development of the deformation texture, only increased its intensity.
Transcriptomic Profiling of Tetrodotoxin-Induced Neurotoxicity in Human Cerebral Organoids
Authors: Liu Zhanbiao , Wang Zhe , Wei Yue , Shi Jingjing , Shi Tong , Chen Xuejun , Li Liqin
Published: November 2023

Tetrodotoxin (TTX) is an exceedingly toxic non-protein biotoxin that demonstrates remarkable selectivity and affinity for sodium channels on the excitation membrane of nerves. This property allows TTX to effectively obstruct nerve conduction, resulting in nerve paralysis and fatality. Although the mechanistic aspects of its toxicity are well understood, there is a dearth of literature addressing alterations in the neural microenvironment subsequent to TTX poisoning. In this research endeavor, we harnessed human pluripotent induced stem cells to generate cerebral organoids—an innovative model closely mirroring the structural and functional intricacies of the human brain. This model was employed to scrutinize the comprehensive transcriptomic shifts induced by TTX exposure, thereby delving into the neurotoxic properties of TTX and its potential underlying mechanisms. Our findings revealed 455 differentially expressed mRNAs (DEmRNAs), 212 differentially expressed lncRNAs (DElncRNAs), and 18 differentially expressed miRNAs (DEmiRNAs) in the TTX-exposed group when juxtaposed with the control cohort. Through meticulous Gene Ontology (GO) annotation, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, and protein–protein interaction (PPI) analysis, we ascertained that these differential genes predominantly participate in the regulation of voltage-gated channels and synaptic homeostasis. A comprehensive ceRNA network analysis unveiled that DEmRNAs exert control over the expression of ion channels and neurocytokines, suggesting their potential role in mediating apoptosis.
Common Complications and Cardiopulmonary Resuscitation in Patients with Left Ventricular Assist Devices: A Narrative Review
Authors: Zaloznik Djordjevic Jerica , Özkan Timur , Göncz Eva , Ksela Jus , Möckel Martin , Strnad Matej
Published: November 2023

Heart failure remains a major global burden regarding patients’ morbidity and mortality and health system organization, logistics, and costs. Despite continual advances in pharmacological and resynchronization device therapy, it is currently well accepted that heart transplantation and mechanical circulatory support represent a cornerstone in the management of advanced forms of this disease, with the latter becoming an increasingly accepted treatment modality due to the ongoing shortage of available donor hearts in an ever-increasing pool of patients. Mechanical circulatory support strategies have seen tremendous advances in recent years, especially in terms of pump technology improvements, indication for use, surgical techniques for device implantation, exchange and explantation, and postoperative patient management, but not in the field of treatment of critically ill patients and those undergoing cardiac arrest. This contemporary review aims to summarize the collected knowledge of this topic with an emphasis on complications in patients with left ventricular assist devices, their treatment, and establishing a clear-cut algorithm and the latest recommendations regarding out-of-hospital or emergency department management of cardiac arrest in this patient population.
Unraveling the Intertwined Effect of pH on Helicobacter pylori Motility and the Microrheology of the Mucin-Based Medium It Swims in
Authors: Su-Arcaro Clover , Liao Wentian , Bieniek Katarzyna , Constantino Maira A. , Decker Savannah M. , Turner Bradley S. , Bansil Rama
Published: November 2023

The gastric pathogen, Helicobacter pylori bacteria have to swim across a pH gradient from 2 to 7 in the mucus layer to colonize the gastric epithelium. Previous studies from our group have shown that porcine gastric mucin (PGM) gels at an acidic pH < 4, and H. pylori bacteria are unable to swim in the gel, although their flagella rotate. Changing pH impacts both the rheological properties of gastric mucin and also influences the proton (H+)-pumped flagellar motors of H. pylori as well as their anti-pH sensing receptors. To unravel these intertwined effects of acidic pH on both the viscoelastic properties of the mucin-based mucus as well as the flagellar motors and chemo-receptors of the bacterium, we compared the motility of H. pylori in PGM with that in Brucella broth (BB10) at different pH values using phase contrast microscopy to track the motion of the bacteria. The results show that the distribution of swimming speeds and other characteristics of the bacteria trajectories exhibit pH-dependent differences in both media. The swimming speed exhibits a peak at pH 4 in BB10, and a less pronounced peak at a higher pH of 5 in PGM. At all pH values, the bacteria swam faster and had a longer net displacement in BB10 compared to PGM. While the bacteria were stuck in PGM gels at pH < 4, they swam at these acidic pH values in BB10, although with reduced speed. Decreasing pH leads to a decreased fraction of motile bacteria, with a decreased contribution of the faster swimmers to the distributions of speeds and net displacement of trajectories. The body rotation rate is weakly dependent on pH in BB10, whereas in PGM bacteria that are immobilized in the low pH gel are capable of mechano-sensing and rotate faster. Bacteria can be stuck in the gel in various ways, including the flagella getting entangled in the fibers of the gel or the cell body being stuck to the gel. Our results show that in BB10, swimming is optimized at pH4, reflecting the combined effects of pH sensing by anti-pH tactic receptors and impact on H+ pumping of flagellar motors, while the increase in viscosity of PGM with decreasing pH and gelation below pH 4 lead to further reduction in swimming speed, with optimal swimming at pH 5 and immobilization of bacteria below pH 4.
Holistic View and Novel Perspective on Ruminal and Extra-Gastrointestinal Methanogens in Cattle
Authors: Aryee Godson , Luecke Sarah M. , Dahlen Carl R. , Swanson Kendall C. , Amat Samat
Published: November 2023

Despite the extensive research conducted on ruminal methanogens and anti-methanogenic intervention strategies over the last 50 years, most of the currently researched enteric methane (CH4) abatement approaches have shown limited efficacy. This is largely because of the complex nature of animal production and the ruminal environment, host genetic variability of CH4 production, and an incomplete understanding of the role of the ruminal microbiome in enteric CH4 emissions. Recent sequencing-based studies suggest the presence of methanogenic archaea in extra-gastrointestinal tract tissues, including respiratory and reproductive tracts of cattle. While these sequencing data require further verification via culture-dependent methods, the consistent identification of methanogens with relatively greater frequency in the airway and urogenital tract of cattle, as well as increasing appreciation of the microbiome–gut–organ axis together highlight the potential interactions between ruminal and extra-gastrointestinal methanogenic communities. Thus, a traditional singular focus on ruminal methanogens may not be sufficient, and a holistic approach which takes into consideration of the transfer of methanogens between ruminal, extra-gastrointestinal, and environmental microbial communities is of necessity to develop more efficient and long-term ruminal CH4 mitigation strategies. In the present review, we provide a holistic survey of the methanogenic archaea present in different anatomical sites of cattle and discuss potential seeding sources of the ruminal methanogens.
Clarithromycin Suppresses Apple Proliferation Phytoplasma in Explant Cultures
Authors: Semerák Matěj , Sedlák Jiří , Čmejla Radek
Published: November 2023

Apple proliferation, caused by ‘Candidatus Phytoplasma mali’, is one of the most important economic threats in the field of apple production. Especially at a young age, infected trees can be affected by excessive bud proliferation and general decline. The fruit quality is also significantly reduced by this disease. To investigate treatment options, we applied a clarithromycin chemotherapy to infected in vitro cultures of ‘Golden Delicious’. With increasing concentrations of clarithromycin in the media, the phytoplasma load decreased rapidly after one month of treatment, but phytotoxicity led to a pronounced mortality at 40 mg/L, which was the highest dose used in our experiment. Out of 45 initial explants, we obtained one negative mericlone and two mericlones with a concentration of phytoplasma DNA at the detection limit of PCR. The culture propagated from the mericlone that tested negative remained phytoplasma-free after 18 months of subculturing. Our results suggest the applicability of macrolide antibiotics against phytoplasma infections in vitro; however, it might be challenging to find the threshold zone where the concentration is sufficient for pathogen elimination, but not lethal for the plant material of different cultivars.
A Novel Single Differencing Measurement for Multipath Detection
Authors: Alcock Matthew , Blunt Paul
Published: November 2023

Increased global dependence on Global Navigation Satellite Systems (GNSSs) has resulted in a high demand for greater precision and reliable measurements from GNSS receivers. The multipath problem is the single largest source of errors in modernised GNSSs. Double differencing techniques, such as Code Minus Carrier (CMC) have been shown to accurately detect and measure multipath, allowing for corrections to be made via Ground Base Augmentation Systems (GBAS), for example. However, these techniques require at least two receivers and the protection provided is not extended to stand-alone receivers. This paper introduces a new single differencing technique for the accurate detection of multipath in standalone GNSS receivers receiving modernised Binary Offset Carrier (BOC)-modulated signals. Similarities to CMC are drawn before the novel measurement, Code minus Subcarrier, (CMS) is characterised statistically and a threshold for multipath detection is determined. The effectiveness and sensitivity of this novel measurement as a multipath detection technique are analysed through simulation and multipath error envelope analysis. It will be shown that multipath echos capable of inducing a psuedorange error larger than the threshold are detectable at any amplitude. The method is finally verified using simulated fixed offset multipath, confirming that when code and subcarrier early–late spacings are optimal, all ranges of multipath delays, even as small as 21 meters, are detectable. This novel method of multipath detection requires no additional complex correlators than already exist in the chosen tracking algorithm, thus, providing excellent detection with minimum complexity added to the receiver structure.
Quality Assessment of the Atmospheric Radio Occultation Profiles from FY-3E/GNOS-II BDS and GPS Measurements
Authors: He Youlin , Zhang Shaocheng , Guo Sheng , Wu Yunlong
Published: November 2023

The Fengyun-3E (FY-3E) satellite carrying the advanced Global Navigation Satellite System (GNSS) Radio Occultation Sounder-II (GNOS-II) is already in operation for radio occultation (RO) observation, with the BeiDou Navigation Satellite System (BDS-2 and BDS-3) and Global Positioning System (GPS) signals tracking capability. FY-3E BDS and GPS RO signals tracking capability were first evaluated by comparing their penetration depths, and then the quality of the refractivity, temperature, and specific humidity profiles was analyzed with the fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis (ERA5) data. Results show the mean penetration depth of BDS occultations was 1.65 km compared to 1.09 km of GPS occultations. Between 5 and 25 km, the mean refractivity bias of the BDS (GPS) was −0.14% (0.01%) with the mean standard deviation (SD) being 1.11% (1.52%); the mean temperature biases of both were within ±0.1 K, and the mean SD of BDS was 1.1 K compared to 1.2 K for the GPS; BDS/GPS specific humidity bias was within ±0.3 g/kg with corresponding SD being less than 1.3 g/kg. Seasonal deviations of specific humidities were largest in summer and smallest in winter. Latitudinal deviations over the tropics were generally higher than in other areas. Enriched quantity and high accuracy and precision after careful calibration will promote the FY-3E RO profiles as a reliable data source for the RO community.
Geological Hazard Identification and Susceptibility Assessment Based on MT-InSAR
Authors: Lu Zhaowei , Yang Honglei , Zeng Wei , Liu Peng , Wang Yuedong
Published: November 2023

Geological hazards often occur in mountainous areas and are sudden and hidden, so it is important to identify and assess geological hazards. In this paper, the western mountainous area of Beijing was selected as the study area. We conducted research on landslides, collapses, and unstable slopes in the study area. The surface deformation of the study area was monitored by multi-temporal interferometric synthetic aperture radar (MT-InSAR), using a combination of multi-looking point selection and permanent scatterer (PS) point selection methods. Random forest (RF), support vector machine (SVM), convolutional neural network (CNN), and recurrent neural network (RNN) models were selected for the assessment of geological hazard susceptibility. Sixteen geological hazard-influencing factors were collected, and their information values were calculated using their features. Multicollinearity analysis with the relief-F method was used to calculate the correlation and importance of the factors for factor selection. The results show that the deformation rate along the line-of-sight (LOS) direction is between −44 mm/year and 28 mm/year. A total of 60 geological hazards were identified by combining surface deformation with optical imagery and other data, including 7 collapses, 25 unstable slopes, and 28 landslides. Forty-eight of the identified geological hazards are not recorded in the Beijing geological hazards list. The most effective model in the study area was RF. The percentage of geological hazard susceptibility zoning in the study area is as follows: very low susceptibility 27.40%, low susceptibility 28.06%, moderate susceptibility 21.19%, high susceptibility 13.80%, very high susceptibility 9.57%.
Designing an IoT-Based System for Monitoring Noise Levels in the Computer Science Faculty and Library of the Technological University of Panama
Authors: Saldana-Barrios Juan Jose , Aguilar Edwil , Ng Wing , Orocu Roderit
Published: November 2023

Noise pollution is a growing problem in urban areas, and it is important to study and evaluate its impact on human health and well-being. This work presents the design of a low-cost IoT model and implementation of two prototypes to collect noise level data in a specific area of the regional center of Chiriquí, at the Technological University of Panama that can be replicated to create a noise monitoring network. The prototypes were designed using Autodesk Fusion 360, and the data were stored in a MySQL database. Microsoft Excel and ArcGIS Pro were used to analyze the data, generate graphs, and display the information on maps. The results of the analysis can be used to develop strategies to reduce noise pollution and improve the quality of life in urban areas.
Leak State Detection and Size Identification for Fluid Pipelines with a Novel Acoustic Emission Intensity Index and Random Forest
Authors: Nguyen Tuan-Khai , Ahmad Zahoor , Kim Jong-Myon
Published: November 2023

In this paper, an approach to perform leak state detection and size identification for industrial fluid pipelines with an acoustic emission (AE) activity intensity index curve (AIIC), using b-value and a random forest (RF), is proposed. Initially, the b-value was calculated from pre-processed AE data, which was then utilized to construct AIICs. The AIIC presents a robust description of AE intensity, especially for detecting the leaking state, even with the complication of the multi-source problem of AE events (AEEs), in which there are other sources, rather than just leaking, contributing to the AE activity. In addition, it shows the capability to not just discriminate between normal and leaking states, but also to distinguish different leak sizes. To calculate the probability of a state change from normal condition to leakage, a changepoint detection method, using a Bayesian ensemble, was utilized. After the leak is detected, size identification is performed by feeding the AIIC to the RF. The experimental results were compared with two cutting-edge methods under different scenarios with various pressure levels and leak sizes, and the proposed method outperformed both the earlier algorithms in terms of accuracy.
Robust H-Infinity Tracking Control for a Valve-Controlled Hydraulic Motor System with Uncertain Parameters in the Complex Load Environment
Authors: Lu Kunwei , Feng Guodong , Ding Beichen
Published: November 2023

A valve-controlled hydraulic motor system operating in a complex environment is subject to complex load changes. In extreme cases, the load can be regarded as a disturbance signal with complex frequency and strong amplitude fluctuations, which greatly affects the speed stability of the hydraulic motor and reduces the operating efficiency. In this paper, the structure of valve-controlled hydraulic motor systems is analyzed, and a valve-controlled hydraulic motor system model with uncertain parameters is established after considering the actual target parameter error and model linearization error. Different from the common H-infinity control, which regards the load disturbance as external disturbance, this paper presents a robust H-infinity tracking control strategy, which considers uncertain parameters and the load torque of the valve-controlled hydraulic motor system as internal disturbances. The simulation results show that the proposed control scheme has better control characteristics and robustness than the traditional PID control.
Sustainable Development of Energy, Water and Environment Systems (SDEWES 2022)
Authors: Sahin Oz , Richards Russell , Giurgiu Ioana C.
Published: November 2023

The findings of the most recent Intergovernmental Panel on Climate Change (IPCC) report highlighted significant gaps in the targeted global reductions in greenhouse gas (GHG) emissions [...]
Sustainability of Romanian Small and Medium Enterprises Using the Electronic Signature as a Driving Digital Tool
Authors: Borcoși Corina-Ana , Borcoși Ilie , Marian Marius , Cusman Adelin , Ionică Dragoș
Published: November 2023

The new motto of our society is sustainability through digitalization. The trend towards digitalization of enterprises is indeed a form of sustainable development. Within the European Union, policies are drawn up, and actions are undertaken to contribute to the creation of a sustainable, high-performing economy. Business performance today is also associated with digitalization, i.e., with the use of digital tools. The widespread use of digital tools in the economy also depends on their implementation by Small and Medium Enterprises (SMEs), which have a significant weight in the economy of each country member. This study addresses this issue of widespread use of digital tools by Romanian SMEs. The purpose of the study is to determine the impact and relevance of the use of digital tools, more precisely the use of the digital signature, on Romanian SMEs, and what are the impediments to the use of the digital signature for all documents, “on a large scale”, in any situation (a SWOT analysis was carried out that highlights the constraints and limitations, but also the factors that are advantageous and determine the use of the digital signature by SMEs). The research was based on two related studies: the first investigation covers the use cases of digital signature within the community of Romanian SMEs, while the second study reflects on the use of digital signatures by Romanian SMEs, from the perspective of the commercial certified trust service providers from Romania. Quantitative and qualitative methods were used, which provided many interesting results. Thus, it was found that companies with a short and those with a long presence in the market use the digital signature less than those with an average one, and the most important advantage of using the digital signature is the reduction in time, in second place being the reduction in costs. The study also reveals that the biggest barrier to the widespread use of the digital signature is the lack of information and know-how, which is why we considered it appropriate to carry out this study. The results of the study are discussed considering today’s increasingly digitalized context. This study enriches the specialized literature with information on the use of digital signatures by Romanian SMEs.
The Development of Technogenic Deposits as a Factor of Overcoming Resource Limitations and Ensuring Sustainability (Case of Erdenet Mining Corporation SOE in Mongolia)
Authors: Potravny Ivan , Novoselov Andrey , Novoselova Irina , Gassiy Violetta , Nyamdorj Davaakhuu
Published: November 2023

This article justifies the need to involve technogenic deposits (off-balance ore and wastes) into the economic circulation of mining enterprises when there is a depletion of natural resources. It could be considered as one of the tools of the circular economy. The authors analyze global trends in the development of copper deposits, global demand for copper, and design recommendations for possible alternative options for the copper production. The authors use the case of Erdenet Mining Corporation SOE based in Mongolia to develop the approach for economic, social, and environmental problem-solving. The millions of mining dumps are proposed to develop as technogenic resources for recycled materials, prolonging profitable activities of the mine. The hierarchy analysis method is used to obtain the optimum order of mining dump development to obtain the desired economic, social, and environmental effect.
Drone Lidar Deep Learning for Fine-Scale Bare Earth Surface and 3D Marsh Mapping in Intertidal Estuaries
Authors: Wang Cuizhen , Morgan Grayson R. , Morris James T.
Published: November 2023

Tidal marshes are dynamic environments providing important ecological and economic services in coastal regions. With accelerating climate change and sea level rise (SLR), marsh mortality and wetland conversion have been observed on global coasts. For sustainable coastal management, accurate projection of SLR-induced tidal inundation and flooding requires fine-scale 3D terrain of the intertidal zones. The airborne Lidar systems, although successful in extracting terrestrial topography, suffer from high vertical uncertainties in coastal wetlands due to tidal effects. This study tests the feasibility of drone Lidar leveraging deep learning of point clouds on 3D marsh mapping. In an ocean-front, pristine estuary dominated by Spartina alterniflora, drone Lidar point clouds, and in-field marsh samples were collected. The RandLA-Net deep learning model was applied to classify the Lidar point cloud to ground, low vegetation, and high vegetation with an overall accuracy of around 0.84. With the extracted digital terrain model and digital surface model, the cm-level bare earth surfaces and marsh heights were mapped. The bare earth terrain reached a vertical accuracy (root-mean-square error, or RMSE) of 5.55 cm. At the 65 marsh samples, the drone Lidar-extracted marsh height was lower than the in-field height measurements. However, their strongly significantly linear relationship (Pearson’s r = 0.93) reflects the validity of the drone Lidar for measuring marsh canopy height. The adjusted Lidar-extracted marsh height had an RMSE of 0.12 m. This experiment demonstrates a multi-step operational procedure to deploy drone Lidar for accurate, fine-scale terrain and 3D marsh mapping, which provides essential base layers for projecting wetland inundation in various climate change and SLR scenarios.
Can Digital Finance Contribute to Agricultural Carbon Reduction? Evidence from China
Authors: Liao Yangjie , Zhou Xiaokun
Published: November 2023

The existing research covers digital finance’s carbon reduction impacts in industrial and urban settings, however, leaving a gap in understanding its effects in agriculture. This study addresses this gap by examining the relationship and mechanism between digital finance and agricultural carbon reduction. Two hypotheses are proposed to guide the study: (1) The development of digital finance could reduce agricultural carbon emissions; (2) The development of digital finance could significantly promote agricultural green innovation, empowering agricultural carbon emission reduction. By employing panel data spanning 31 provinces from 2011 to 2020, we empirically investigate the relationship between digital finance development and a reduction in agricultural carbon emissions. The results indicate that digital financial development significantly reduces agricultural carbon emissions. Mechanism analysis further elucidates the pivotal role of digital finance in facilitating agricultural green innovation, resulting in a decline in agricultural carbon emissions. Additionally, heterogeneity analysis reveals that the impact of digital finance on agricultural carbon emission reduction is particularly pronounced in regions with higher income levels and greater educational attainment. The study offers empirical evidence on the nexus between digital finance and agricultural carbon emissions, from a developing country perspective. It could provide innovative ideas and experiences from China for global agricultural low-carbon development practices.
Third Hankel Determinant for Subclasses of Analytic and m-Fold Symmetric Functions Involving Cardioid Domain and Sine Function
Authors: Alahmade Ayman , Mujahid Zeeshan , Tawfiq Ferdous M. O. , Khan Bilal , Khan Nazar , Tchier Fairouz
Published: November 2023

In this research, we define a few subclasses of analytic functions which are connected to sine functions and the cardioid domain in the unit disk. We investigate initial coefficient bounds, the Fekete–Szego problem and second and third Hankel determinants for the functions f belonging to these newly defined classes. We also define the class of m-fold symmetric functions related with the sine function and then investigate the bounds of the third Hankel determinant for twofold symmetric and threefold symmetric functions.
Residual Tsallis Entropy and Record Values: Some New Insights
Authors: Shrahili Mansour , Kayid Mohamed
Published: November 2023

Recently, the uncertainty aspects of record values have been increasingly studied in the literature. In this paper, we study the residual Tsallis entropy of upper record values coming from random samples. In the continuous case, we define the Tsallis entropy quantity for the residual lifetime of upper record values in general distributions as the residual Tsallis entropy of upper record values coming from a uniform distribution. We also obtain a lower bound on the residual Tsallis entropy of upper data set values originating from an arbitrary continuous probability distribution. We also discuss the monotonic property of the residual Tsallis entropy of upper data sets.
Results of assessing herd immunity to SARS-CoV-2 in medical workers
Authors:   Institute of Continuous Professional Education, Federal State Budgetary Educational Institution of Higher Education «Bashkir State Medical University», E. A. Imelbaeva E. A. , Gilmanov A. Zh. ,   Institute of Continuous Professional Education, Federal State Budgetary Educational Institution of Higher Education «Bashkir State Medical University», Saptarova L. M. ,   Institute of Continuous Professional Education, Federal State Budgetary Educational Institution of Higher Education «Bashkir State Medical University»
Published: November 2023

article presents the results of a study of the level of antibodies to SARSCoV- 2 in the blood of 54 medical workers: those who were ill or vaccinated within six months before the start of the study (70.4 %), non-ill and unvaccinated (20.7 %), and those with hybrid immunit y (recovered from the disease and vaccinated) (6.9 %). The data obtained indicate a decrease in the level of herd immunity within six months, which is especially pronounced in non-immunized individuals. The presence of antibodies in low titers in non-ill and non-immunized individuals may indicate natural immunization in the context of the infection pandemic, which decreases sharply as the epidemic subsides.
Focal myocarditis associated with novel coronavirus infection COVID-19 and problems of polymorbidity in a healthcare worker
Authors:   FSBEI HE Samara State Medical University of the Ministry of Health of the Russian Federation, Azovskova T.A. , Lavrentieva N.E. ,   FSBEI HE Samara State Medical University of the Ministry of Health of the Russian Federation
Published: November 2023

The main clinical manifestations of COVID-19 are respiratory disorders of varying severity, up to acute respiratory distress syndrome. One of the crucial manifestations of the novel coronavirus infection is damage to the cardiovascular system. Myocardial damage occurs in approximately 12% of patients hospitalized with SARS-CoV-2 infection.The presented clinical case reflects one of these possible variants of serious lesions - myo carditis, which led to the development of rhythm disturbances. The article presents the principles and results of a medical examination carried out in order to establish the causal relationship between the disease and occupation of a medical worker.
Impact of the blogosphere on the formation of spiritual and moral values of the young in the changing information world
Authors:   Department of Journalism, Moscow University for the Humanities, Akimova Elena Mikhailovna , Gudkova Olga Dmitrievna ,   Department of Journalism, Moscow University for the Humanities
Published: November 2023

The article reveals the growing role of the blogosphere in the formation of spiritual and moral values in the changing information world, the reasons for its effective impact on the worldview of young people, especially regarding the educational platform, as well as the increasing manipulation and destructive influence of blogs on the consciousness of the youth audience.
Cognitive warfare and history lessons
Authors:   Department of Journalism, Moscow University for the Humanities, Bobrov Aleksandr Aleksandrovich
Published: November 2023

The article analyzes the acute problems of preserving historical memory, instilling patriotism in the best traditions, and teaching history at school.
Educational potential of modern Russian television
Authors:   Department of Journalism, Moscow University for the Humanities, Baryshnikov Kirill Borisovich
Published: November 2023

The article examines and analyzes a pressing issue of our time: the role and significance of screen media in the process of personal formation and ideological, moral, and spiritual education of the younger generations of our country. It is demonstrated that viewer interest and the attitude of the viewer audience to television products are objectively reflected in their ratings, indicators of attendance of thematic Internet platforms (video hosting and video portals), and the presented on-screen video content (author's videos and reports, author's programs and films of various screen genres, animated screen works, advertising content), which in turn depend on social, thematic, and aesthetic parameters, elements of the structure of television programs and television shows, as well as on the features and specifics of the work of television presenters, their image criteria and parameters, which actively influence all levels of meeting audience needs and requests.
Issues of interethnic tolerance and national identity in the processes of the information space globalization
Authors:   Department of Journalism, Moscow University for the Humanities, Kokhanaya Olga Evgenievna , Serzhanskaya Ekaterina Andreevna ,   Department of Journalism, Moscow University for the Humanities
Published: November 2023

The authors analyze the content and functional specificity of the phenomenon of tolerance and explore the possibilities of media in the formation of interethnic media culture of participants in the communication space. It is shown that journalism and the media form the interethnic media culture of participants in the communication space and demonstrate models of political and social behavior to the audience, including certain stereotypes of citizens’ interethnic and intercultural tolerance. The article examines tolerance as the perception and understanding of other cultures, ways of self-expression, and manifestation of human individuality.
Transient Buoyancy- Driven Laminar Convection in an Inclined Three- Dimensional Trapezoidal Enclosure
Authors:   University of Babylon, Kadhim Hussein Ahmed
Published: November 2023

Numerical analysis of transient laminar threedimensional buoyancy-driven convection in an inclined threedimensional trapezoidal air-filled enclosure was investigated in this paper. The right and left sidewalls of the enclosure are kept at constant cold temperatures. The bottom wall is maintained at a constant hot temperature , while the top wall is considered adiabatic. Numerical investigation is performed for Rayleigh numbers varied as 103 ≤ Ra ≤ 105 , while the trapezoidal enclosure inclination angle is varied as 0° ≤  ≤ 180°. Prandtl number is considered constant at Pr = 0.71. Flow and thermal fields are presented in both two and threedimensional pattern. Also, both local and average Nusselt numbers are calculated and discussed. The results show that when the Rayleigh number increases, the flow patterns are changed especially in three-dimensional results and the flow circulation increases. The minimum average Nusselt number inside the trapezoidal cavity corresponds to the highest inclination angle [i.e., 180 ].While, the average Nusselt number reaches its maximum value at    30 . Moreover, when the Rayleigh number increases the average Nusselt number increases as expected.
An intertextual analysis of MT 2, 13-15 for the purpose of creating a theology of the well known passage
Authors: Benaković Ivan
Published: November 2023

The aim of this short paper is to show the possibility of intertextual reading of the text in Mt 2,13-25 in the perspective of the presentation of harmonious biblical theology. Starting from the biblical text, the author using intertextual analysis tries to offer a solution to problems when reading the text in Mt 2, 13-15. The author harmoniously connects the intertextual analysis of the text with the possible historical implications of the same biblical text. All in order to show the genius of the author of Matthew’s Gospel, who used traditional materials in a harmonious way when writing his account of the life of the Son of God.
Deteksi Komentar Cyberbullying Pada YouTube Dengan Metode Convolutional Neural Network – Long Short-Term Memory Network (CNN-LSTM)
Authors: Andika Albertus Josef , Kristian Yosi , Setiawan Esther Irawati
Published: November 2023

Pada era digital seperti sekarang cyberbullying kerapkali terjadi di berbagai belahan dunia termasuk di Indonesia, hal ini dapat terjadi pada siapa saja dan dimana saja terutama media sosial seperti YouTube melalui fitur komentar semua pengguna yang memiliki akun dapat dengan mudah terlibat cyberbullying hanya melalui berbalas komentar. Penelitian ini bertujuan untuk melakukan deteksi adanya cyberbullying melalui pengumpulan serta pengklasifikasian komentar negatif video pada kanal YouTube dengan konten tertentu berbasis bahasa Indonesia (serta bahasa-bahasa daerah tertentu, seperti Jawa dan Surabaya) melalui metode deep-learning Convolutional Neural Network – Long Short-Term Memory Network (CNN-LSTM). Dataset komentar yang dipakai dalam penelitian dikumpulkan dengan menggunakan Application Program Interface (API) yang telah disediakan oleh Youtube secara gratis dan berbatas kuota secara kumulatif. Terkumpul data komentar total sebanyak 26.918 komentar dengan perincian 9.834 komentar terklasifikasi cyberbullying dan 17.084 komentar terklasifikasi sebagai bukan cyberbullying. Setelah dataset dipakai dalam proses training pada model CNN-LSTM dan menghasilkan sebuah model dengan nilai F1-score sebesar 0,84, model tersebut dipakai dalam sebuah API sederhana yang menerima input beberapa kalimat yang akan dideteksi konten cyberbullying dan menghasilkan output berupa JSON yang berisi hasil klasifikasi dari setiap kalimat yang akan dideteksi.
Penerapan Metode Certainty Factor pada Sistem Pakar Diagnosis Penyakit Difteri Berbasis Web
Authors: Mulyani Asri , Kurniadi Dede , Multajam Sri Intan
Published: November 2023

Difteri adalah penyakit menular dan mematikan, penyakit ini dilaporkan oleh Dinas Kesehatan Jawa Barat kembali merebak akibat penanganan yang lambat. Jauhnya fasilitas layanan kesehatan dan keterbatasan jumlah dokter menjadi permasalahan. Tujuan dari penelitian ini adalah merancang dan membangun sistem pakar yang mampu melakukan diagnosis awal penyakit difteri melalui penerapan metode certainty factor. Aplikasi ini dirancang dalam bentuk web dengan mengikuti proses pengembangan aplikasi ESDLC (Expert System Development Life Cycle). Hasil dari penelitian ini adalah sebuah aplikasi sistem pakar berbasis web untuk mendiagnosis penyakit difteri dengan basis pengetahuan terdiri dari 12 gejala penyakit. Sistem pakar diagnosis penyakit difteri ini telah melalui proses uji coba menggunakan metode blackbox testing, hasilnya menunjukkan semua fitur dalam aplikasi yang sudah dibuat dapat beroperasi dengan baik. Selain itu, tingkat akurasi dari sistem pakar ini sebesar 90% berdasarkan akurasi yang telah dilakukan terhadap 10 data uji. Hasil tersebut menunjukkan bahwa diagnosis yang dihasilkan dari sistem pakar mempunyai hasil yang sejalan dengan diagnosis pakar.
The use of nutraceuticals in children. Global trends (literature review)
Authors: Lototska O.V. , Vastyanov R.S. , Kobolev E.V. , Rozhnova A.M.
Published: November 2023

The purpose of the review was to assess global trends in the consumption of nutraceuticals by children and adolescents. The analysis of modern literature is carried out. It has been shown that about 30% of children and adolescents in economically developed countries of the world regularly consume nutraceuticals, there is an increase in the consumption of nutraceuticals with anabolic properties among adolescent girls. Comparisons with idealized bodies on Instagram lead to a decrease in self-confidence and an increase in the frequency of dissatisfaction with one's own body. Accordingly, the demand for protein-containing food supplements is increa­sing. The highest intake of nutraceuticals in children and adolescents has been reported in the United States. Among other countries, there is also a high rate of nutraceutical use. The most frequently consumed nutraceuticals are multivitamin and mineral complexes, while only in 1/5 of cases the consumption of nutraceuticals by children is initiated by a medical specialist, in other cases, the decision to include nutraceuticals in the diet was made under the influence of advertising. There is a steady global trend towards increasing the consumption of nutraceuticals by children and adolescents. In Ukraine, extensive studies on children's consumption of nutraceuticals have not been conducted. However, these studies were conducted on limited clinical material and do not reflect the actual prevalence of nutraceutical use in children and adolescents in Ukraine. This makes it highly relevant to conduct a population-based study in Ukraine to investigate the role of nutraceuticals in pediatric nutrition.

Keywords: nutrition, children and adolescents, health, рrevention.
Моделювання відновлення ефективної діяльності групи реагування на інциденти інформаційної безпеки в умовах наростання інтенсивності кібератак
Authors: Дьогтєва І. О. , Шиян А. А. , Катаєв В. С.
Published: November 2023

Останнім часом стрімко зростає кількість випадків використання кіберпростору для кібератак як на окремих людей, соціальні групи, так і на суспільство в цілому. Такі атаки характеризуються тим, що їхня інтенсивність зростає протягом атаки. Внаслідок цього складаються нові умови для діяльності груп реагування на інциденти інформаційної безпеки (ГРІІБ). Однак ефективність діяльності ГРІІБ, яка здійснюється протягом тривалого часу, зменшується внаслідок цілого ряду причин, зокрема втоми спеціалістів. У статті здійснено моделювання особливостей функціонування ГРІІБ в умовах наростання інтенсивності кібератак з урахуванням впливу параметрів і характеристик їхнього відновлення, що є необхідним для ефективного функціонування даної групи. Отримано функцію відновлення пуассонівського потоку та щільність її відновлення, запропоновано формули для функцій відновлення потоку обслужених і втрачених заявок для процесу відновлення ГРІІБ під час кібератак. Особливість побудованої для дослідження моделі полягає у врахуванні параметра підвищення інтенсивності ідентифікації подій інформаційної безпеки. Проведено імітаційне моделювання діяльності ГРІІБ, яке показало, що показники зміни ефективності їхньої діяльності в процесі протидії кібератакам із наростанням інтенсивності можуть бути прогнозовані з використанням отриманих результатів.
Проблеми анонімності та централізації фінансових систем і їхнє вирішення за допомогою технології Blockchain
Authors: Охріменко Т. О. , Макаренко О. І. , Бредніков А. В. , Толбатов А. В. , Бондаренко І. О.
Published: November 2023

Наразі централізована фінансова система має істотні недоліки. Персональні дані концентруються у централізованих базах даних та підлягають достатньому ризику бути скомпрометованими. Існує проблема захисту персональних даних користувачів. Крім того існує проблема анонімності сторін транзакції. Також проблемою централізованого фінансового світу є так званий «Ефект Метью». У статті наведено статистику витоків персональних даних. Розглянуто рішення Blockchain, яке засноване на протоколі Monero, що дає змогу вирішити окреслені проблеми. Для забезпечення анонімності та високої продуктивності представлено технології: Ring Signature, одноразової адреси (Stealth Address),  ring confidential transactions (RingCTs).
Analisis Kesiapan Guru dalam Mengimplementasikan Kurikulum Merdeka Belajar di MTs As’adiyah Uloe
Authors: Syafi'i Ahmad
Published: November 2023

MTs As’adiyah Uloe telah mengikuti serangkaian kegiatan menuju penerapan Kurikulum Merdeka Belajar yaitu pelatihan Kurikulum Merdeka di Tanjung Pallette pada 25 sampai 26 Oktober 2022. Kegiatan ini khusus dilaksanakan untuk MTs As’adiyah Uloe. Tujuan dari penelitian ini ialah untuk menganalisis kesiapan guru dalam menghadapi kurikulum Merdeka di MTs As’adiyah Uloe. Penelitian merupakan penelitian studi kasus (kualitatif). Observasi, wawancara, dan dokumentasi merupakan metode penelitian yang diguanakan dalam riset ini. Adapun prosedur pengumpulan datanya yakni data dikumpulkan, direduksi, ditarik kesimpulan, dan diuji menggunakan teriangulasi. Hasil penelitian menunjukkan bahwa: 1) Hanya sebagian kecil guru telah merancang perangkat pembelajaran seperti CP, TP, ATP, dan modul ajar. Namun belum rampung. 2) Guru belum siap dan belum menyiapkan modul projek pembelajaran. 3) Untuk semua mapel yang diajarkan di kelas VII, fasilitas berupa bahan ajar (buku) telah disediakan oleh madrasah. Adapun fasilitas tambahan berupa ebook dan bahan ajar lainnya, telah dimiliki dan disiapkan masing-masing guru mapel. 4) Hanya sebagian guru yang merencanakan pembelajaran berdeferensiasi. 5) Hanya sebagian kecil guru yang melakukan asesmen, baik itu diagnostik kognitif maupun diagnostik non kognitif.
Radioactive legacies and radon – recommendation of the German commission on radiological protection
Authors: Gellermann Rainer , Breckow Joachim
Published: November 2023

In connection with the legal term of radioactively contaminated sites, the SSK recommended in 2022 that the reference value of 1 mSv effective dose in a calendar year specified in the Radiation Protection Act should be supplemented by a reference value for radon that is independent of this. The SSK suggested applying a reference value for Rn-222 (annual average concentration) of 300 Bq per m³ in buildings and 80 Bq per m³ in outdoor air.

The article describes the rationale for this recommendation and explains the contents of the SSK recommendation from the background of radiation protection conflicts arising from the current system of radiation protection. Because the protection against radon is detached from the dose as the uniform tool of judgment and forms a distinct approach, new problems arise. In particular, the common comparison of additional exposures with natural exposures via the uniform effective dose, frequently used in communication with the public, becomes questionable.
Effect of interface quality on spin Hall magnetoresistance in Pt/MgFe2O4 bilayers
Authors: Sugino Masafumi , Ueda Kohei , Kida Takanori , Hagiwara Masayuki , Matsuno Jobu
Published: November 2023

We report on spin Hall magnetoresistance (SMR) in bilayers composed of Pt and magnetic insulator MgFe2O4 (MFO) with spinel structure. The Pt thickness dependence of the SMR reveals that annealing of the MFO surface before depositing the Pt layer is crucial for a large SMR with better interface quality. We also found that oxygen pressure during the MFO growth hardly affects the SMR, while it influences the magnetic property of the MFO film. Our findings provide important clues to further understanding the spin transport at interfaces containing magnetic insulators, facilitating development of low power consumption devices.
Stabilization of Bi vibration along c-axis in BiS2-based layered compounds La(O,F)Bi(S,Se)2 by Se substitution
Authors: Abbas Fysol Ibna , Arima Hiroto , Kasem Md. Riad , Watanabe Yuto , Hasegawa Takumi , Lee Chul-Ho , Yamashita Aichi , Mizuguchi Yoshikazu
Published: November 2023

BiCh2-based layered compounds have been extensively studied as potential thermoelectric and unconventional superconducting materials. For both functionalities, in-plane chemical pressure effects improve their thermoelectric or superconducting properties. In this study, we investigate the effects of in-plane chemical pressure on atomic vibrations of Bi by analyzing lattice specific heat measured at T = 1.9–300 K with multiple Debye and Einstein models for thermoelectric LaOBi(S,Se)2 and superconducting LaO0.5F0.5Bi(S,Se)2. We reveal that in-plane chemical pressure enhances the oscillator number of the Einstein mode corresponding to large-amplitude Bi vibration along the c-axis in both the systems.