bluuebunny/crossref_metadata_2025 huggingface dataset:
Creep of low-plastic heat-resistant materials in dending
Authors:   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, Yu. M. Podrezov , D. G. Verbylo ,   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, V. I. Danylenko ,   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, Y. I. Yevich Y. I. ,   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, О. I. Tolochyn ,   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, N. I. Tsyganenko ,   I. M. Frantsevich Institute for Problems of Materials Science, NAS of Ukraine
Published: June 2023

Express method of testing the initial creep stagiess of low-plastic heat-resistant materials that work in extreme conditions using the bending scheme proposed and developed. The features of stress and deformation calculation are analyzed. The limitations of using the elastic approximation are outlined: the degree of plastic deformation of the sample should not exceed 1—1,5%. The deflection should not exceed 10% of the distance between the supports, the height should not be greater than 1/10 of the distance between the supports. Under these conditions, the first and second stages are well distinguished on the creep curves. This makes it possible to analyze the influence of phase and structural changes on the mechanisms of creep at each stage, and the conditions for the transition to stationary creep. The results of model experiments performed on TNM titanium aluminide alloys and Fe3Al powder alloy samples indicate the expediency of using the three-point bending scheme for researching the initial stagiess of creep of heat-resistant materials. Experimentally determined values of the deformation rate vary in the range έ ~ 10-5—10-8, which is the most characteristic for the creep of heat-resistant materials. For low-plastic intermetallics, the influence of temperature and loading force on creep curves was studied. The dependences deformation rate vs time on the first and second stages of creep were obtained from bending tests. Thermal activation parameters are defined for the stage of permanent creep. The proposed method allows to study the speed sensitivity and to determine the thermal activation parameters of creep. In extreme conditions of operation of low-plastic heat-resistant materials, the proposed method allows to take into account and analyze the contribution to the creep of cracking and slow destruction processes. Keywords: three-point bending test, rate of deformation, initial stages of creep,high temperature materials, thermal activation parameters.
Sustainability Values in Religious Education
Authors: Kondrla Peter
Published: June 2023

Aim. The aim of the article is to identify opportunities for religious education in the field of promoting the values of sustainable development. By identifying key concepts, define options for future strategies in the implementation of sustainable development values in school teaching of religious education.
Methods. The starting point is the analysis of the current religious education curriculum, which governs the teaching of religious education and is approved by both state and church authority. Based on the analysis, identify strengths and weaknesses and define potential areas within the curriculum where sustainability values can be applied.
Results. The values of sustainable development and Christian values are based on a common anthropological platform, which is based on the dignity of the human person. Religious education should also be based on this platform.
Conclusion. In order to apply the values of sustainable development, it is necessary to adjust the current curriculum in terms of content and scope of topics. At the same time, it is necessary to innovate in the way of training future teachers. The goal of innovations is the internalization of sustainability values within the value orientation of both teachers and students.
Cognitive value. Christian values and the values of sustainable development are not in conflict. The content of the religious education curriculum has the potential to innovate its content to meet the current requirements of the United Nations (UN) agenda as well as the teachings of the Magisterium.
“Should I Stay or Should I Go?” Relationships Between Emotion Regulation and Basic Needs Satisfaction of Parents Displaced in Ukraine and Abroad (During the First 6 Months of The Russian Invasion of Ukraine)
Authors: Shyroka Anastasiia , Senyk Oksana , Zavada Tetiana , Vons Olena , Kornadt Anna
Published: June 2023

Aim. The ability to regulate emotions depends on many factors, but for displaced persons, the satisfaction of basic needs is likely to be among the most important. Therefore, this study aimed at determining the degree of basic needs satisfaction and their relationship with indicators of emotion regulation in parents displaced within Ukraine and abroad due to the Russian invasion of Ukraine in 2022.
Methods. The study sample comprised of parents (98% of whom were mothers), aged 18-55, who fled the war from 23 different regions of Ukraine to the safer Ukrainian regions (N = 99) or abroad (N = 241). Participants answered questions about their demographics, basic needs satisfaction, and emotion regulation.
Results. There was no significant difference between parents displaced in Ukraine or abroad in access to basic resources, conditions of accommodation, medical care and emotional support, but parents abroad had better access to employment and education of their children. Parents in both groups had positive (refocused on planning, put the situation into perspective) and negative (rumination) strategies of emotion regulation. Parents who had higher level of their basic needs’ satisfaction, scored higher on positive emotion regulation strategies and were less likely to experience emotion regulation difficulties.
Conclusion. Basic needs satisfaction can be considered an important protective factor for displaced persons’ emotional regulation. The obtained results allowed drawing of conclusions only about people who were able to participate in the study. The problem of access to a broader target population is discussed.
University Students’ Perspectives on Online Learning via the Microsoft Teams Platform
Authors: Stramkale Ligita
Published: June 2023

Aim. The aim of the study was to determine students’ perspectives on collaboration, the study process and motivation while using the Microsoft Teams (MS Teams) platform for online learning.

Methods. The study involved 124 (N=124) students of 1st-level higher professional education, bachelor’s and master’s study programmes, who studied in full-time and part-time study forms. The study addressed three research questions. RQ1: What are students’ perspectives on collaboration while learning online via the MS Teams platform and whether their opinions depend on age, study level, form of study and course? RQ2: What are students’ perspectives on the study process via the MS Teams platform, and whether their views influenced by age, study level, study form and course? RQ3: What is the students’ motivation to study online on the MS Teams platform, and does it depend on age, level of study, study form and course? The study used statistical Package for Social Sciences (SPSS 22.0) for quantitative data analysis.

Results. The students believe that they can easily collaborate on the MS Teams platform. Students' perspectives on collaboration are not related to study form, the level of study, or the course, but in some instances, are connected with the age of the students. The majority of students evaluate the study process on MS Teams positively. Their views are not related to study form, the course or the age, but in some cases, connected with the level of study. The students’ motivation to study online using MS Teams is grown by reducing time consumption, the convenience of learning in their environment and the ability to complete the tasks easier, but their motivation could decrease because this form of study is less exciting compared with face-to-face and does not create satisfaction.

Conclusion. The study concluded that: Firstly, with increasing age, student satisfaction with mutual collaboration on the MS Team platform declines, secondly students of the lower-level programme believe they are more likely to ask questions, receive feedback, and understand information than those who study in the higher-level programme, thirdly young students and those who study in the lower-level programme find learning online via the MS Teams platform more exciting than older students and those who study in the higher-level programme. Further research needs to find out why students of the lower-level study programmes believe they are more likely to ask questions, receive feedback and understand information while learning online on MS Teams, and it is also essential to investigate what factors determine whether or not studies are exciting.
Learning by Playing. A Case Study of the Education in Photography by Digital Games
Authors: Mago Zdenko , Wojciechowski Łukasz P. , Balážiková Magdaléna , Shelton Amiee J.
Published: June 2023

Aim. The study aims to explore the current state of digital game-based learning to reflect the extent, possibilities, opportunities, and limitations of its implementation in the specific field of education as visual art, especially photography.
Method. The explorative study employed the method of theoretical analysis of available literature and other secondary sources related to the issue, and subsequently applied the method of an illustrative (descriptive) case study.
Results. Photo modes of commercially available digital games, originally intended to increase the players’ retention and participation, have led to the birth of a new art form, virtual photography. The technology of photo modes in a larger variety of recent games has made virtual photography available to significantly more players. Photo modes provide artistic control and creative options alongside a whole catalogue of lenses, camera parameters, and other features, reducing the financial burden associated with the purchase of photographic equipment. Furthermore, photo modes offer more than just a substitutable alternative to traditional photography, as added artistic value is found within virtual worlds.
Conclusions. Despite some limitations regarding the overall implementation of digital game-based learning in photography classrooms, photo modes of commercially available digital games are a suitable tool for educational efforts in photography through both self-development and measurement of outcome-based learning.
Non-Formal Education Focused on the Development of Critical Thinking and Media Literacy: The Role and Activities of Key Stakeholders in Slovakia
Authors: Vrabec Norbert , Kačinová Viera , Kitsa Mariana , Majda Martin
Published: June 2023

Aim. This research study aims to examine the role and activities of key stakeholders in Slovakia who participate in non-formal education activities focused on the issue of critical thinking in relation to media communication. The aim was to gain an overview of the ways and means by which these actors address their target groups and what conceptual approaches they use to increase the level of media literacy at the national level.
Methods. Framework analysis of secondary data on Slovak subjects whose non-formal educational activities and tools focus on the issue of critical thinking, disinformation and fake news by increasing the level of media and information literacy of various target groups.
Results. The analysis of secondary data showed that representatives of various stakeholders in Slovakia offer different categories of projects and activities to increase the level of media and information literacy of various target groups. The obtained results indicate that the most active providers of non-formal education activities are in the sector of non-governmental organisations and think tanks. Our analysis also aimed to examine what types of educational activities organisations provide. The most significant representation is static online content (various types of educational content available through the website).
Conclusions. The presented research results suggest that in terms of the position of key actors, the ways of their involvement in non-formal education processes are sufficiently diversified. They use a wide range of implementation concepts and models to develop critical thinking through non-formal learning methods for different target groups.
Do Adult Learners Who Engage in Torah Study as a Leisure Activity Report Higher Levels of Meaning in Life than Learners of General Enrichment Studies?
Authors: Alkan Ora , Davidovitch Nitza , Kushnir Talma
Published: June 2023

Aim. The aim of the research is to assess whether adult learners engaged in Torah/Bible studies report higher levels of psycho-social resources, specifically spirituality, meaning in life, hope, and social support, than learners who attend general enrichment courses, and whether psycho-social resources contribute to their meaning in life.
Methods. Participants were 234 men and women over age 55 who study regularly in their leisure time: 56 Torah students in the hevruta (communal learning) method, 50 Torah students who participated in frontal Torah lectures, and 128 adults who attended lectures on various enrichment subjects. Participants completed self-report questionnaires that included demographic information and characteristics of the course, evaluations of the learning experience, the Spiritual Health and Life-Orientation Measure, the Snyder Hope Questionnaire, the Multidimensional Scale of Perceived Social Support (MSPSS), and the PIL – Purpose in Life questionnaire.
Results. Torah and enrichment learners did not differ in meaning of life and hope. Torah learners reported a stronger learning experience, higher levels of transcendentality (an aspect of spirituality), and more social support from their peer group. For all learners, social support from the family was the strongest contributor to meaning in life, followed by hope and finally the communality aspect of spirituality.
Conclusions. Findings confirm the importance of the human need for relatedness in determining meaning and suggest that the social milieu in which the leisure activity is held may be more important for cultivating meaning in life than the discipline studied.
Polish and European Union economy in 2011–2019 and under the Covid pandemic: Application of macroeconomic condition index
Authors: Błaszczyk Paweł , Stępień Sebastian , Polcyn Jan
Published: June 2023

A set of simple and complex indicators is used to measure the economic condition of economies, and the analysis can be conducted in a static or dynamic approach. This article proposes the author's macroeconomic condition index (MCI), which is based on the popular misery index, supplementing the unemployment and inflation rates with two variables: GDP growth rate and budget deficit. The aim of the study is to assess the macroeconomic situation of Poland against the average for the EU, using the above-mentioned measure. The time scope of the study covers the years 2011–2020, with particular emphasis on the effects of the first year of the Covid crisis. The results indicate that throughout the period the economic situation in Poland in terms of the four variables combined was relatively favourable, although less stable. A sharp downturn occurred in 2020, both domestically and on average in the EU. The main determinants of the worse condition were a decline in the GDP growth rate and an increase in the budget deficit, with relatively steady unemployment and inflation.
Are monetary transmission channels effective under the quantitative and qualitative easing policy?
Authors: Lau Wee-Yeep , Yip Tien-Ming
Published: June 2023

This study measures the effectiveness of monetary transmission channels of the Bank of Japan's (BOJ) Quantitative and Qualitative Monetary Easing (QQE) policy in affecting Japan's inflation rate. The monetary transmission channels are interest rate, portfolio rebalancing and foreign exchange rate channels. Based on data from 1 August 2013 to 31 October 2019, the Granger's Causality Test showed that the interest rate channel was vital in transmitting the effect of monetary easing. Specifically, the interest rate channel transmitted the effect of QQE, QQE with a negative interest rate and QQE with yield curve control policy to the domestic price level. Portfolio rebalancing and foreign exchange rate channels did not influence Japan's inflation rate in all the QQE policy periods. The empirical results are robust against different estimation methods. Based on the findings, the study offers some imperative policy recommendations.
Taxonomic revision and additional comments of some bats (Mammalia, Chiroptera) reported from Bolivia, with an updated checklist based on voucher material with verified identities
Authors: Poma-Urey José L. , Acosta S. Luis H. , Rivero Kathia , Hidalgo-Cossio Marisol , Hingst-Zaher Erika , Gualda-Barros Juliana , da Natividade Beatriz D. , Barboza-Marquez Kathrin , Ramírez-Chaves Héctor E. , Salazar-Bravo Jorge , Ochoa G. José
Published: June 2023

We review the taxonomic identities of museum specimens of three bat species previously reported from Bolivia. We comment on some erroneously reported taxa, or taxa either not represented by voucher materials or based on insufficient data (including acoustic detections) to verify their taxonomic affinities. As result of this review, the list of bat species known to occur in Bolivia is updated to eight families and 133 species, unlike the nine families and 146 species of previous lists. Some recommendations for future research and a brief historical revision of bat inventories in the country are included.
Recent advances in nitrogen-doped graphene oxide nanomaterials: Synthesis and applications in energy storage, sensor electrochemical applications and water treatment
Authors: Yokwana Kholiswa , Ntsendwana Bulelwa , Nxumalo Edward N. , Mhlanga Sabelo D.
Published: June 2023

This review covers recent advances on production techniques, unique properties and novel applications of nitrogen-doped graphene oxide (NGO). The focal point is placed on the evaluation of diverse methods of production for NGO and reduced nitrogen-doped graphene oxide (NrGO) nanosheets using GO and graphite as carbon precursors. Variation in chemical composition of GO with variable N content, C–N bonding configurations and chemical reactive functionalities of NGO allow tuneable properties that render NGO a suitable material for various applications such as lithium-ion batteries, biosensors, supercapacitors and adsorption processes. NGO and NrGO exhibit significantly different performances compared to GO even with small amounts of N-doping. The type of C–N bonding and surface chemistries on the NGO are responsible for their unique electrical, mechanical, adsorption, chemical reactivity, photocatalytic activity, and optical properties. Various investigative techniques used to study NGO nanomaterials are also reviewed. Finally, future perspectives of NGO in this rapidly developing area are discussed.

Graphical abstract

Methods of synthesis of N-doped graphene oxide nanosheets and their advantages and disadvantages.
NUMERICAL STUDY OF TURBULENT HEAT TRANSFER PROCESS IN DIFFERENT WAVY CHANNELS WITH SOLID AND PERFORATED BAFFLES
Authors: Akcay Selma
Published: June 2023

This study numerically investigated the effects of different baffle arrangements on heat transfer enhancement and flow in channels with different wave profiles. Four different wave profiles - rectangular, trapezoidal, triangular, and circular - were considered for the wavy channels. Analyses were made on the solid and perforated baffles that were installed vertically in the channel's central area to determine their hydrodynamic performance and convective heat transfer. Pressure-velocity coupling in discretized equations was handled with the SIMPLE algorithm, and analyses were carried out using the ANSYS Fluent solver. The standard k-ε turbulence model was used to solve the simulations. In this study, the channel geometry, the baffle arrangement, and the Reynolds number (4000 ≤ Re ≤ 12,000) were changed. The wavy surfaces were preserved at Tω = 360 K. The results were presented with different dimensionless parameters such as Nusselt number (Nu), friction factor (f), and thermal performance factor (TPF). Analyses indicated that the Nu number increased with increasing Re in all channel flows. In all wave profiles, the highest heat transfer was obtained in the solid baffle arrangement. The heat transfer increased by 2.12 times in the rectangular channel with solid baffle at Re = 4000 compared to the channel without a baffle. The highest average Nusselt number and relative friction factor were obtained about 143.34 and 1.24, respectively, in rectangular profile with solid baffle at Re = 12,000. The variation of the friction factor differed according to the wave profile and the baffle arrangement. The triangular profile with two-perforation baffles had the lowest TPF value, 1.09, and the rectangle profile with a solid baffle had the highest TPF value, 2.02. The results of the present study showed that the flow and heat transfer behaviors were similar in trapezoidal and circular channels.
NUMERICAL SIMULATION OF THE RISE OF TWO PARALLEL UNEQUAL BUBBLES IN A VISCOELASTIC FLUID
Authors: Liu Zhuang , Li Shaobai , Ji Jingbo
Published: June 2023

The interaction of two parallel unequal bubbles in a viscoelastic fluid is investigated numerically
using OpenFoam, the volume of fluid method (VOF) combined with a surface tension model to
trace the gas-liquid interface, and the Giesekus model to characterise the rheological properties of the
fluid. The numerical results are in good agreement with experimental results from the literature. The
effects of bubble diameter, initial spacing between bubbles and rheological properties of the fluid on
the rise, and separation and convergence of the two bubbles are investigated. The flow field properties
and viscoelastic stress distribution around the bubbles are explored. As the bubble spacing increases,
the maximum and terminal velocities of the two bubbles increase, and the relative positions of the
bubbles change when they come into contact. As the relaxation time λ increases, the contact time of
the bubbles decreases, and the small bubbles tend to have an inverted teardrop shape and the large
bubbles have less deformation and no sharp tail. The relaxation time directly affects the accumulation
of viscoelastic stress, leading to changes in the velocity of the bubbles at contact, and their maximum
and terminal velocities increase. Bubbles in highly elastic fluids are more prone to negative wake
phenomena.
Rejuvenation of existing structures in New Zealand’s land transport infrastructure
Authors: Shanmuganathan Sulojana , Coleman Liam
Published: June 2023

Civil engineers play a vital role in contributing to meeting the United Nations Sustainable Development Goals by reducing greenhouse gas emissions, not only during construction of new infrastructure but also by extending the lifespan of existing assets. This paper focuses on how engineers in New Zealand have adopted clever yet elegant solutions to reuse, repurpose and revitalise existing land transport structures in the past two decades. Case studies of road and rail bridges from Waka Kotahi New Zealand Transport Agency and KiwiRail network highlight the various challenges, solutions and lessons learned.
Fetal Reprogramming of Nutrient Surplus Signaling, O-GlcNAcylation, and the Evolution of CKD
Authors: Packer Milton
Published: June 2023

Fetal kidney development is characterized by increased uptake of glucose, ATP production by glycolysis, and upregulation of mammalian target of rapamycin (mTOR) and hypoxia-inducible factor-1 alpha (HIF-1α), which (acting in concert) promote nephrogenesis in a hypoxic low–tubular-workload environment. By contrast, the healthy adult kidney is characterized by upregulation of sirtuin-1 and adenosine monophosphate–activated protein kinase, which enhances ATP production through fatty acid oxidation to fulfill the needs of a normoxic high–tubular-workload environment. During stress or injury, the kidney reverts to a fetal signaling program, which is adaptive in the short term, but is deleterious if sustained for prolonged periods when both oxygen tension and tubular workload are heightened. Prolonged increases in glucose uptake in glomerular and proximal tubular cells lead to enhanced flux through the hexosamine biosynthesis pathway; its end product—uridine diphosphate N-acetylglucosamine—drives the rapid and reversible O-GlcNAcylation of thousands of intracellular proteins, typically those that are not membrane-bound or secreted. Both O-GlcNAcylation and phosphorylation act at serine/threonine residues, but whereas phosphorylation is regulated by hundreds of specific kinases and phosphatases, O-GlcNAcylation is regulated only by O-GlcNAc transferase and O-GlcNAcase, which adds or removes N-acetylglucosamine, respectively, from target proteins. Diabetic and nondiabetic CKD is characterized by fetal reprogramming (with upregulation of mTOR and HIF-1α) and increased O-GlcNAcylation, both experimentally and clinically. Augmentation of O-GlcNAcylation in the adult kidney enhances oxidative stress, cell cycle entry, apoptosis, and activation of proinflammatory and profibrotic pathways, and it inhibits megalin-mediated albumin endocytosis in glomerular mesangial and proximal tubular cells—effects that can be aggravated and attenuated by augmentation and muting of O-GlcNAcylation, respectively. In addition, drugs with known nephroprotective effects—angiotensin receptor blockers, mineralocorticoid receptor antagonists, and sodium-glucose cotransporter 2 inhibitors—are accompanied by diminished O-GlcNAcylation in the kidney, although the role of such suppression in mediating their benefits has not been explored. The available evidence supports further work on the role of uridine diphosphate N-acetylglucosamine as a critical nutrient surplus sensor (acting in concert with upregulated mTOR and HIF-1α signaling) in the development of diabetic and nondiabetic CKD.
How the position of at least affects its interpretation: experimental data
Authors: Göbel Alexander , Wagner Michael
Published: June 2023

The Focus-particle at least is known to be ambiguous between two interpretations: an epistemic one conveying uncertainty/ignorance, and a concessive/evaluative one that conveys a desirability ranking. Prior literature has argued that the position of at least determines what interpretation is available: at least is concessive/evaluative adsententially and epistemic adnominally. We present three experiments that investigate how three properties which the two interpretations have been taken to differ on are restricted by the syntactic position of at least, namely entailment of the prejacent, truth of higher alternatives, and desirability. The results overall support the view that the interpretation of at least is restricted by its position as previously claimed by some accounts, but syntactic position seems to dissociate the three properties in ways incompatible with previous assumptions. We discuss the implications of these results for formal accounts of at least.
Silicon electrodeposition from the KF-KCl-K2SiF6 and KF-KCl-KI-K2SiF6 melts
Authors: Zhuk S. I. , Minchenko L. M. , Suzdaltsev A. V. , Isakov A. V. , Zaikov Yu. P.
Published: June 2023

Silicon and silicon-based materials find extensive applications in metallurgy, microelectronics, and other emerging industries. The field of use of synthesized silicon varies based on its morphology and purity. This study employs voltammetry, galvanostatic electrolysis, and scanning electron microscopy to examine the impact of KI surfactant (in mol %) to 66.5KF–33.3KCl–0.23K2SiF6 melt at 750°C on the electrowinning kinetics of silicon ions and the morphology of silicon deposits formed on a glassy carbon electrode. The findings demonstrate that the addition of potassium iodide to the KF–KCl–K2SiF6 melt at a concentration of 2 mol % induces changes in interfacial tension at the boundary between the glassy carbon, melt, and atmosphere. Consequently, the wetting of the glassy carbon with the melt decreases, leading to a reduction in the actual working surface area and, consequently, a decrease in cathode current while maintaining current density. Taking into account this effect and employing an algebraic estimation of the influence of the melt meniscus shape, it is postulated that the addition of KI does not significantly affect the kinetics of the cathode process. Nevertheless, the impact of KI addition on the morphology of electrodeposited silicon is mentioned. During the electrolysis of the KF–KCl–K2SiF6 melt, fibrous silicon deposits with arbitrary shapes are formed on the glassy carbon electrode, whereas the addition of 2 and 4 mol % of potassium iodide to the melt leads to the agglomeration and smoothing of silicon deposits under the same electrolysis conditions (cathode current density: 0.02 A/cm2, electrolysis duration: 2 h). The obtained results indicate the potential to manipulate the morphology of electrodeposited silicon for specific applications in various fields.
Improvement of monitoring and control system for copper electrolytic refining parameters
Authors: Hoang Nguyen Huy , Bazhin V. Yu.
Published: June 2023

The utilization of modern automated control systems in copper cathode production offers the opportunity for remote access to control and regulate the electrolytic process parameters. This, in turn, enhances production efficiency while reducing energy costs. The significant parameters in copper electrolytic refining encompass the temperature and composition of the electrolyte, the circulation rate of the electrolyte, the level of sludge, and the frequency of short circuits occurring between the electrodes and the current density. These parameters directly impact the quantity and volume of cathode sludge. The occurrence of short circuits within the bath arises from the growth of dendrites, necessitating the monitoring of voltage, composition, and temperature of the electrolyte. Regular analysis of the electrolyte's composition and the accumulation of sludge volume at the bottom of the electrolyzer is also necessary. The intensification of the electrolysis process primarily involves increasing the current density, reducing the electrode spacing, enhancing the quality of electrodes, improving the electrolyte circulation system, and further mechanizing and automating the process and its auxiliary operations. These efforts contribute to increased productivity. The objective of this study is to expand the capabilities of automated process control systems by incorporating sludge level control sensors. This aims to mitigate irrecoverable losses resulting from dendritic sludge short circuits on the electrodes located in the lower section of the electrolyzer, utilizing new software. A sludge level control method to prevent short circuits has been investigated, and control software employing float-type level sensors has been developed. This measure is projected to decrease energy consumption by 15–20 % and can be effectively implemented in the production of electrolytic copper at the copper smelting plant in Lao Cai, Vietnam.
Using simulation to design tool for pressing of hollow profiles from aluminum alloys
Authors: Sidelnikov S. B. , Koloskov S. S. , Dovzhenko N. N. , Gorbunov Yu. A. , Voroshilov D. S.
Published: June 2023

In order to simulate the pressing of hollow profiles made from aluminum alloys, the previously developed design algorithms for the pressing tool and the QForm software were utilized. The objective of this study was to enhance the quality and decrease the design timeintervals for pressing tools used in the industrial production of aluminum alloy profiles. A novel design procedure for a combined tool, along with the technology of semi-continuous pressing with welded hollow profiles made from aluminum alloys, was proposed. This was achieved using the QForm software, which enables efficient calculations and adjustments of pressing parameters and tool geometry through a dialog interface. The developed algorithm and design procedures enable the drawing of hollow profiles, technological calculations of pressing parameters, selection of a suitable horizontal hydraulic press, matrix and splitter design, determination of strength parameters, assessment of equipment load, and preparation of working drawings for the pressing tool. In order to validate the effectiveness of the design procedure, it was applied to typical hollow profiles fabricated on a commercial scale. Two variations of the pressing tool design were examined. Simulation results obtained from QForm Extrusion software, specifically designed for pressing analysis, revealed that the initial design of the tool, with predetermined technological parameters and geometry of the splitter and matrix channels, resulted in uneven flow of profile elements and temperature distribution. However, by adjusting the tool parameters, it was possible to achieve a straight profile exit from the matrix and a uniform temperature distribution across its cross section. Industrial verification of the designed tool, utilizing a 33 MN hydraulic horizontal press for pressing profiles made from alloy 6063, demonstrated that significant modifications to the matrix and splitter were not necessary. By employing the proposed pressing tool design, batches of products were successfully manufactured in compliance with the required technical specifications, while reducing the design time intervals of the pressing tool by approximately 50 %.
Post-Pandemic Case Management: Building Blocks for Resocialization
Authors:   Licensed Professional Counselor with Emphasis on Threat Assessment, TX 77584, USA, Littles Kim
Published: June 2023

There is a growing number of K-12 students who pose a threat of violence on their school campus. During the pre-pandemic-season, threats that were reported averaged between five to eight substantive threats per month in the sixth largest school district in the state.1
Bullying and Oppressive Behaviors Towards LGBTQ Adolescents: Substance Use Disorders in the Making?
Authors:   The SASSI Institute, 201 Camelot Lane, Springville, IN 47462, USA, Tiburcio Nelson J. , Baker Scarlett L. ,   The SASSI Institute, 201 Camelot Lane, Springville, IN 47462, USA
Published: June 2023

In this short communication, we discuss substance misuse and explore the genesis and exacerbation of drug use among Lesbian, Gay, Bisexual, Transgender, and Queer (LGBTQ) teens. Early intervention, discussion, and education are critical components towards preventing possible negative outcomes for LGBTQ teens. We look at the possible connection between bullying and other oppressive behavior (such as shaming) and acknowledged substance use and suicide.
Spartan
Authors: ROEHRIG B. , SCHLIENGER D. , LEROULLEY D. , MEUSNIER J.-G. , DE LAMBERTERIE J.-b. , MILLIAT G. , CALVOT B.
Published: June 2023

De septembre 2016 à janvier 2021, 13 binômes médecins-infirmiers se sont succédés en bande sahélo-saharienne en soutien du détachement commando montagne inséré au sein du groupement tactique désert aérocombat. La mission de ce détachement était de poursuivre au sol le combat mené depuis les airs ; la mission de son binôme santé d’en assurer le soutien en tout lieu et toute circonstance.
La diversité des missions et leur intensité ont éprouvé les capacités physiques du binôme santé, ainsi que son aptitude à s’adapter constamment à des missions nécessitant mobilité et autonomie.
La doctrine du soutien santé en opération a pu être déclinée jusqu’à « l’extrême avant » grâce aux solides compétences au sauvetage au combat de chaque personnel du détachement (du SC1 au SC3) et à la confiance mutuelle développée au cours de la préparation opérationnelle et entretenue tout au long des mandats.
Le mandat Spartan a été une occasion unique pour les personnels santé de vivre des expériences opérationnelles engagées, mobilisant toutes leurs compétences et les confrontant parfois à des situations difficiles où les liens étroits développés avec leur unité se révélaient fondamentaux dans la prise de décision et l’orientation de l’action.
Profils de température corporelle au cours d’un exercice physique intense chez des militaires ayant présenté un coup de chaleur d’exercice
Authors: BEIGHAU S. , JOUVION A. , CORNET D. , BERTHELOT R.-C. , BELOT DE SAINT-LÉGER F. , SAGUI E.
Published: June 2023

Le coup de chaleur d’exercice (CCE) est défini par la survenue de signes d’encéphalopathie variés, en contexte hyperthermique supérieur à 40 °C, au cours ou au décours d’un exercice physique intense et prolongé. Sa physiopathologie, imparfaitement comprise, aboutit à une ascension incontrôlée de la température corporelle (Tco). Chez le sujet ayant présenté un CCE, une défaillance des mécanismes de contrôle de la Tco pourrait être en cause, soit par augmentation incontrôlée de la production de chaleur, soit par défaut de dissipation. Toutefois, l’évolution de la Tco à l’effort n’a jamais été étudiée chez ces sujets. L’objectif de notre étude est de décrire l’évolution de la Tco au cours d’un effort intense et prolongé, chez des sujets ayant un antécédent de CCE.
Quarante sujets (38 hommes, âgés de 28,4 ± 4,9 ans, avec un indice de masse corporelle à 24,9 ± 2,4 kg/m2) ayant déjà présenté un CCE ont effectué une marche-course de huit kilomètres en tenue de combat. Un monitorage continu de la Tco et de la fréquence cardiaque (FC) était réalisé respectivement par une capsule thermique ingérée et un cardiofréquencemètre. La consommation maximale en oxygène (VO2max) était mesurée la veille de la course.
La performance moyenne était de 44,6 ± 6,6 minutes, sous les conditions environnementales suivantes : température ambiante 17,1 ± 4 °C et hygrométrie 71,1 ± 13,9 %. Aucun trouble neurologique n’avait été observé. Le pourcentage moyen du temps de course où la FC mesurée de chaque sujet était inférieure à la FC du premier seuil ventilatoire était de 0,75 % [minimum-maximum: 0–2 %]. La Tco maximale était de 39,9 ± 0,5 °C. Trois profils ont été identifiés : (1) une montée en température lente, inférieure à 39 °C à la 20e minute de course, sans phase de plateau ; (2) une montée en température rapide, supérieure ou égale à 39 °C à la 20e minute, suivie d’un plateau ; (3) une montée en température rapide, supérieure à 39 °C à la 20e minute, sans phase de plateau, atteignant des valeurs de Tco supérieures à 40 °C. Les sujets ayant un antécédent de CCE présentent différents profils de Tco à l’exercice maximal. Une montée rapide de la Tco sans plateau (profil 3) pourrait représenter un modèle de thermolyse altérée et un facteur prédictif de récidive de CCE. Cependant, un suivi longitudinal est nécessaire pour affirmer cette hypothèse. Une Tco supérieure ou égale à 40,1 °C en fin de course serait un outil fiable et accessible sur le terrain pour dépister ces sujets à risque.
Standard Operating Procedures v1
Authors: not provided g.spencer
Published: June 2023

List of all SOPs for MSc CEP
Automated Blood Pressure (Oscillometric Technique) v1
Authors: not provided insightsmovement
Published: June 2023

The following SOPs outline how to take a blood pressure measurement using an automated device. Blood-pressure measurement is warranted in any situation that requires assessment of cardiovascular health, including screening for hypertension and monitoring the effectiveness of treatment in patients with hypertension.
LEGACY01: PARTICIPANT ENTRY v1
Authors: M Pollock Katrina
Published: June 2023

This protocol details participant entry in an experimental medicine study of seasonal influenza vaccination responses in Lymph nodE single-cell Genomics in AnCestrY (LEGACY01).
Single cell dissociation of healthy paediatric skin v1
Authors: Stephenson Emily
Published: June 2023

This protocol outlines the method for the enzymatic dissociation of healthy paediatric skin >3mm into a single cell suspension.
LEGACY01: QUALITY ASSURANCE AND CONTROL v1
Authors: M Pollock Katrina
Published: June 2023

This protocol details quality assurance and control in an experimental medicine study of seasonal influenza vaccination responses in Lymph nodE single-cell Genomics in AnCestrY (LEGACY01).
FIVTools Overview v1
Authors: J Buchser William
Published: June 2023

Starting point for using FIVTools for image-based functional tools
Current Concepts in Diagnostics and Treatment of Patellar Instability: Review
Authors: Khominets Vladimir V. , Konokotin Dmitry A. , Rikun Oleg V. , Fedotov Alexey O. , Grankin Alexey S. , Vorobiev Aleksandr S.
Published: June 2023

Background. Patellar instability is one of the most common pathologies of the musculoskeletal system, predominantly observed in physically active young individuals. It ranks third in the structure of knee joint injuries after anterior cruciate ligament and meniscal injuries.
The aim of this review to present modern perspectives on the diagnosis, principles, and surgical treatment techniques for patients with patellar instability based on an analysis of the literature.
Methods. Publications were searched in the PubMed/MedLine and eLIBRARY databases. A total of 112 foreign articles published between 1984 and 2023 and 12 domestic publications from 2011 to 2022 were found. During the analysis, 68 articles were selected, which had full texts or abstracts containing sufficient information on diagnostic methods, commonly used standard and modified surgical correction methods for patellar instability, and treatment protocols considering patient age structure, instability characteristics, and functional demands.
Results. A qualitatively new stage in the reconstructive and restorative surgery of patellar instability is the in-depth examination of patients to determine the extent of damage to the medial retinaculum and the presence of dysplastic changes in anatomical structures that provide normal biomechanics of the knee extensor apparatus. A strictly individual approach to the selection of surgical treatment methods considering risk factors contributing to the development of chronic patellar instability becomes of particular importance.
Conclusion. Precise restoration of the medial patellofemoral ligament, supplemented by the correction of identified dysplastic changes in anatomical formations of the knee joint area, allows for better functional outcomes in patients with acute and chronic patellar instability.
The efficacy of transvaginal ultrasonography and office hysteroscopy in evaluation of abnormal uterine bleeding
Authors: Reddy M. R. Sona , Subhashchandra Mudanur R. , Patil Neelamma B. , G. Yaliwal Rajasri
Published: June 2023

Background: Abnormal uterine bleeding (AUB) is a prevalent issue in women of child bearing age group. AUB can be uncomfortable and have a considerable impact on health-related quality of life. AUB is reported to occur in 9 to 14% women between menarche and menopause and reported prevalence in India is around 17.9%.
Methods: It is a prospective observational study done in 75 patients with abnormal uterine bleeding attending the gynaecology outpatient department (OPD) at Shri B. M. Patil Medical College, Vijayapura, Karnataka. Patient was thoroughly examined and then transvaginal sonography (TVS) was done after obtaining consent. This was followed by office hysteroscopy(OH) and endometrial biopsy was taken for histopathological examination. Data were gathered and examined and cost analysis of each procedure was done.
Results: The most frequent presenting symptom was heavy menstrual bleeding (49.3%). For proliferative and secretory endometrium, the sensitivity of TVS was 81.48% and for the detection of polyps, endometrial hyperplasia, and submucous fibroid it was 45.45%, 42.86%, 100% respectively. The sensitivity of OH for detection of polyps, endometrial hyperplasia, and submucous fibroid which was 46.15%, 100%, 100% respectively. The p value was <0.05 which shows the statistical significance of both tests. TVS demonstrated low correlation for intracavitary diseases. OH was costlier when compared to TVS.
Conclusions: TVS has more sensitivity and accuracy in detecting intramural pathologies. OH had showed greater diagnostic accuracy in identifying intra cavitary pathologies of uterus and doing intervention in the same setting.
Clinical profile and predictors of severity in children with scrub typhus admitted to paediatric intensive care unit
Authors: Aroor Shrikiran , Mundkur Suneel , Kumar Sandeep
Published: June 2023

Background: Scrub typhus accounts for a significant portion of morbidity and mortality related to tropical infectious diseases. This study is done to determine the factors associated with complications and outcome in children with scrub typhus.
Methods: It is a retrospective descriptive study conducted on children diagnosed with scrub typhus (IgM) admitted to the paediatric intensive care unit at a tertiary care centre in south India during 1 year of study period. Clinical profile, laboratory parameters, course of illness and outcome data were collected and analysed.
Results: The study population included 88 children with scrub typhus. 32 children required intensive care unit admission. Remaining 56 children were included in non-severe scrub typhus group. Complications of scrub typhus included hepatic dysfunction (100%), pneumonitis 16 (50 %), meningoencephalitis 12 (37.5%), shock 12 (37.5%), acute respiratory distress syndrome (ARDS) 4 (12.5%), myocarditis 4 (12.5%), acute kidney injury (AKI) 2 (6.25%), multiple organ dysfunction syndrome (MODS) 2 (6.25%) and purpura fulminans 1 (3.1%). Mortality was observed in 2 (1.3%) children. It was found that anaemia and leucocytosis were predominantly associated with the risk of severe scrub typhus (odds ratio of 6.43 and 30.4 respectively, p value <0.001). Among other laboratory parameters, C-reactive protein (CRP) of >30 and hypoalbuminemia were significantly associated with mortality (p value <0.001). The median CRP and AST levels were significantly high in the severe scrub typhus group (p value 0.02 and 0.012 respectively).
Conclusions: Hepatic dysfunction was present in all children admitted to PICU. Children with scrub typhus had an increased risk of developing complications in the presence of anaemia, leucocytosis, CRP>30 mg/l and severe hypoalbuminemia.
O Impacto de Músicas Autodepreciativas nos Pensamentos e Afetos
Authors: Santos Isabella Silva , Pimentel Carlos Eduardo , Mariano Tailson Evangelista
Published: June 2023

Este estudo objetivou observar o impacto de músicas autodepreciativas nos pensamentos e afetos, e o papel da autoestima e outras variáveis relacionadas à música (avaliação e familiaridade) nessa relação. Cento e trinta e seis sujeitos participaram de um experimento aonde ouviram uma música (autodepreciativa / controle) e responderam: uma tarefa de palavras, a Escala de Afetos Positivos e Negativos e a Escala de Autoestima de Rosenberg, que passaram por teste-t, correlação bivariada, ANOVA fatorial e mediação no JASP. Os resultados indicaram que os sujeitos expostos à música autodepreciativa apresentaram mais associações e afetos negativos e menos afetos positivos. As análises de mediação mostraram dois modelos significativos: música - familiaridade - afetos positivos (efeitos indiretos: λ = -0.160, IC 95% = -0.32 - 0.01, p <0.05; efeitos totais: λ = -0.381, IC 95% = - 0.711 - -0.051, p < 0.05); e música - avaliação - afetos negativos (efeitos indiretos: λ = 0.614, 95% IC = 0.269 - 0.959, p <0,05; efeitos totais: λ = 0,397, IC 95% = 0,065 - 0,728, p <0,05). É possível concluir que o objetivo foi cumprido, destacando o impacto de músicas depreciativas no bem-estar.