bluuebunny/crossref_metadata_2025 huggingface dataset:
Gender Equality Perception in Industrial Enterprises Under the Conditions of Industry 4.0
Authors: Sabolová Veronika , Cuninková Lucia , Čambál Miloš
Published: June 2023

Provided that the industrial sector is digitized, it presents an opportunity to enhance the safety and quality of work for the workforce, and it should also lead to a positive social impact by reducing the gender gap and promoting equal opportunities for men and women. Gender equality does not mean sameness, but rather equal social status, rights, and obligations, as well as fair and equitable approach. Fundamentals for both prosperity and a sustainable world is established by the above-mentioned. The primary objective of the research described in this article was to examine the impact of Industry 4.0 on gender equality within industrial organizations and how gender equality is perceived by employees of industrial enterprises. The conducted questionnaire survey was focused on the application of the current state of gender equality under the conditions of Industry 4.0 in seven large industrial enterprises in Slovakia. The survey was focused on industrial enterprises. The most important findings of the conducted survey is the facts that women and men generally perceive the issue of gender equality differently, and that the majority of female respondents do not perceive the arrival of Industry 4.0 and the digitization and automation associated with it as a trend with positive impact.
Agile Manufacturing vs. Lean Manufacturing
Authors: Banáš Daniel , Chovanová Henrieta Hrablik
Published: June 2023

The aim of this paper is to describe characteristics of agile manufacturing and analyse the needs and benefits of agile manufacturing under the conditions of uncertainty and market turbulence. It also describes four main changes in the production environment which were implemented thanks to agile methods, and compares the lean and agile manufacturing, while describing their intersections and differences in achieving the set goals. The conclusion summarises the advantages and identified benefits suitable for organizations after implementation of agile manufacturing, as those are the important facts that can play a significant role in the survival and re-establishment of balance in the periods of uncertainty.
Sustainability Reporting and Earnings Management of Listed Non-Financial Firms in Nigeria
Authors: Olagunju Adebayo , Adenle Oluwatimileyin Esther , Obademi Olalekan , Obiosa Ruth Tony , Akinola Amos Olusola
Published: June 2023

The effects of sustainability reporting on earnings management was examined in the study extensively. Causal research design was employed in this study. The study population comprises of all the 112 quoted non-financial firms in Nigeria, sample size is 22 listed manufacturing firms purposively selected for the purpose of this study. The study covered 7 years’ period ranging from 2015-2021. The data used for this study were gotten from the annual reports and sustainability reports of the selected firms. Data used for this study were analyzed with the use of descriptive statistics and panel regression analysis. Sustainability reporting was measured in this study by using the social, economic and environmental disclosures index, whereas earnings management was measured using discretionary accrual and real earning. The outcome of the analysis of the study revealed that sustainability reporting has a significant negative effect on discretionary accruals and real earnings evidenced by t-statistics = (-2.31, -2.54, -2.95) and p-values of (0.037, 0.018 and 0.023) respectively for social, environmental and economic report disclosures on discretionary accruals and t-statistics of = (-2.53, -2.23, -2.86) and p-values of (0.012, 0.029 and 0.005) respectively for social, environmental and economic report disclosures on real earnings. The study concludes that the firms with low sustainability disclosure will probably be more involved in earnings management practices than the firms who actively disclosed their sustainability matters in details. The study recommends that firms should ensure they disclose in details the true state of their sustainability activities.
Evaluation of a Measurement Turbulence Model of the Wind Pressure on the Ruin of a Fortified Tower
Authors: Poliak Martin , Franek Michal , Gregorová Jana
Published: June 2023

An analysis of the external pressure coefficient on the surface of a ruin in different flow directions is presented. The ruin has almost cube-like proportions with an open roof plane and a destroyed corner. Flow simulations were performed using 3D Time Steady RANS and compared with experimental results from the boundary layer wind tunnel at the Slovak University of Technology in Bratislava. The optimal turbulence model and internal mesh settings were selected based on their statistical evaluation. For an evaluation of the critical directions of the wind flow around the ruin, the values of the external wind pressure coefficient were obtained from the selected calculation model and settings.
A Study of the Sedimentation and Storage Capacity Depletion of a Reservoir
Authors: Zerihun Yebegaeshet T.
Published: June 2023

Theoretical and empirical equations have previously been proposed to compute the sediment trap efficiency of a reservoir. The empirical equations were developed by analyzing a limited amount of field data for reservoirs in selected areas; thus, their suitability is restricted to reservoirs in regions with similar hydrological characteristics. In this study, a sediment trap-efficiency equation, which accounts for the dynamic behavior of sedimentation and the hydraulic conditions of a reservoir, was deduced from the principle of mass conservation. Using this equation, the approximate analytical expression for the storage capacity of the reservoir was obtained. Both equations were applied to investigate real-life problems involving the impacts of reservoir sedimentation, and their predicted solutions were compared with the field data and the results of the theoretical and empirical equations. The results of this investigation reveal that the proposed equations are capable of simulating the sediment trapping and storage capacity depletion characteristics of large reservoirs, which are a measure of the adverse effect of sedimentation on the performance of hydraulic structures. These equations can potentially be incorporated into a large-scale watershed model for estimating a sediment budget.
Effects of Coarse Aggregate Rap Content on the Mechanical and Shear Performance of HMA by the UPT Method
Authors: Khabiri Mohammad Mehdi , Saboohi Meysam
Published: June 2023

In recent years, the use of materials derived from recycled asphalt has attracted the attention of airfield and highway construction researchers. Since the making of these products is economically cost-effective, one idea about how to use them is to use coarse-grained crumbs from recycled Asphalt Pavement (RAP), which are agglomerates that can be found in coarse RAP, as a replacement for virgin asphalt.The goal of the current study is to investigate the performance of hot mix asphalt created with various percents of RAP. The punching shear strength of cylindrical specimens versus the penetration of steel rods with fixed and determined diameters into an asphalt specimen is one of the tests used to study the shear strength of asphalt. Other typical tests include a test of the structural strength and resilient modulus with two rectangular and sinusoidal loading shapes, respectively, as well as the specimen's strength against different temperatures of asphalt mixtures containing 10, 20, and 30% coarse-grained RAP. The results show that the resilient strength of the samples with a maximum 30% coarse-grained RAP is within reasonable limits. Furthermore, the semi-sinusoidal loading has a higher resilience modulus than rectangular loading. It is also observed during uniaxial penetration testing (UPT) that increasing the RAP increases the penetration of the steel rod, thereby implying that the shear strength of the asphalt has decreased.
Age and Gender Differences in Orbital Measurements Within Serbian Population in Kragujevac Region of the Republic of Serbia
Authors: Jakovcevski Igor , Vojinovic Radisa , Zivanovic-Macuzic Ivana , Jakovcevski Maja
Published: June 2023

Orbital measures are not only important parameters in planning ophthalmologic and aesthetic surgical procedures, but also significant anthropology and forensic medicine markers. Using computer tomography and subsequent multiplanar reconstruction we analyzed orbits from 75 Serbian healthy volunteers, examined in the Clinical Hospital of Kragujevac. The subjects were subclassified in age categories, namely 24-39, 40-59, 60-69 and 70-85 years of age, as well as by genders. Taken as a whole population, regardless of age, women had smaller orbital height and width and smaller volumes than men, but similar orbital indices, thus proving once again the importance of the orbital index for comparisons. Additionally, both biorbital and interorbital distances were higher in men than in women. Comparing age groups, biorbital and interorbital distances increased with aging in males, but remained constant in females. The opposite was true for orbital indices which increased significantly with age in females, but remained constant in males. Taken together, our results indicate the presence of age- and gender-related differences in orbital measures within ethnically and geographically homogenous population. It would be interesting to examine subjects from other regions to confirm the patterns reported here.
The Vicious Circle of Marginalization of the Kokoda Tribe in Sorong, Southwest Papua
Authors: Ahriani Andi , Agustang Andi , Syukur Muhammad , Upe Ambo
Published: June 2023

Objective: to analyze the complexity of marginalization faced by the Kokoda Tribe in Sorong, Southwest Papua.
 
Theoretical framework: The Gramsci's theory of hegemony explains that the dominance of intellectual and moral leadership by the ruling class caused the complexity of marginalization.
 
Methods: qualitative research with a critical ethnographic approach. Data were found through field observations, in-depth interviews, and documentation. The data were processed through the stages of ethnographic discovery, making ethnographic notes, and ethnographic descriptions. Data were analyzed through four stages: domain analysis, taxonomy analysis, component analysis, and theme analysis.
 
Results and conclusion: the complexity of marginalization of the Kokoda Tribe, including psychological marginalization: negative stereotypes such as destroyers of nature, criminals, and low work ethic. Political marginalization: political monopoly and political victimization. Economic marginalization: jobs that only come from nature, such as stone breaking and selling mangroves. Social marginalization: ostracism and limited information. Educational marginalization: very low education. The vicious circle of marginalization experienced by the Kokoda Tribe is the result of the hegemony of the dominant group's power.
 
Research implications: Suggestions to the government, academics, and social institutions to help improve the quality of life of the Kokoda Tribe who are independent, dignified, and able to create a sustainable living environment.
 
Originality: The causes of marginalization are not always external, but can also be internal, such as the domination of indigenous Papuan ruling groups.
University Teachers: Research and Scientific Production
Authors: Tao Norio Salvador Siancas , Oliver Jenny Marianella Zavaleta , Malca Walter Florencio Bryson , Mejia Valia Venegas , Mejia Clotilde Paula Venegas
Published: June 2023

Purpose: This research was made with the intention to determine the relationship between research policies and scientific production of public university teachers.
 
Method: The study developed the non-experimental design. The population included 120 teachers and the sample 100 of them, because of an intentional non-probabilistic procedure. The instruments were validated with Cronbach’s Alpha.
 
Results and conclusion: The results were of 0.973 and 0.965. The conclusion was that exist a significant relationship between the variables, with Rho of .587 and p<0.05. So, if teachers have based research policies, they can work on scientific production with more effectiveness.
 
Research implications: To achieve the main goal, it is important to invest on the projects, train the teachers and try to improve the research collaboration policies.
 
Originality/value: Research production is linked to the commitment of distributing information and going on education area.
Analysis and Simulation of Diethyl Carbonate Synthesis via CO2 and Ethanol Conversion
Authors: Hardt Felipe Penteado , Santos Alexandre Ferreira , Corazza Marcos Lúcio
Published: June 2023

Objective: The objective of this study is to analyze and simulate the synthesis of diethyl carbonate (DEC) from the conversion of carbon dioxide and ethanol. The focus is on evaluating the best operating conditions, such as temperature and pressure, using the Aspen Plus software for process simulation. In addition, the study seeks to compare the results obtained with data from the literature and validate the simulation through previous studies.
 
Methodology: To achieve the objective, thermodynamic models were used, such as the NRTL for the liquid phase and the Peng-Robinson equation state model for the vapor phase. The reactor chosen for the simulation was of the PFR type, and the catalyst used was cerium dioxide. Kinetic parameters and reactions were based on previous studies. The simulation was performed by varying the temperature and pressure of the system, feeding the data into the Aspen Plus software.
 
Results and Conclusion: The simulation results indicated a maximum DEC production of 4.268 kmol/h, obtained at a temperature of 165°C and pressures of 150, 200 and 250 bar. Ethanol conversion reached 90.58% under these conditions. It was found that atmospheric pressure is not suitable for the reaction to occur. Comparison with previous studies and simulation validation showed satisfactory agreement. Phase analysis along the reactor revealed significant changes in the phase diagram as the reaction progressed. In short, this study contributes to the understanding of the DEC synthesis, highlighting the ideal operational conditions for its sustainable production.
 
Originality/Value: This study focuses on the production of diethyl carbonate (DEC). It offers an original approach by analyzing the best operating conditions for the synthesis of DEC from carbon dioxide and ethanol. The results obtained demonstrate a maximum production of DEC and a high conversion of ethanol, contributing to the development of sustainable processes and the replacement of toxic compounds with environmentally friendly alternatives. This research is of significant value in expanding existing knowledge about ECD production and its potential impact on the industry.
Biosolid Quality and its Effect on Deforested Soil
Authors: Purizaga Handry Martín Rodas , Ugaz Walter Antonio Campos , Sorroza Maritza Asunciona Purizaga , Vasquez Silvia Josefina Aguinaga , Larrea Yen Marvin Bravo , Ponce-Meza Jacqueline C
Published: June 2023

Objective: The objective of this research was to evaluate the effect of biosolids in an area of recent deforestation.
 
Theoretical framework: Biosolids correspond to a type of organic waste resulting from different treatment processes.
 
Method: The evaluation was carried out in 6 plots, in different sites in the same area and evaluated the growth of species height and laboratory analysis of microbiological, physical-chemical and heavy metal parameters for the soil; this to be compared with national and international regulations that regulate the use of biosolids.
 
Results and conclusion: The growth of tree species, nutrient supply and toxicity of some parameters such as heavy metals and pathogens were identified according to treatment; as a result, the best growth in total height was obtained in plot P3, which had application of the biosolid with 26 tree species of the 124 species sampled. As for the soil, the biosolid increased the redox potential by 24% in the plots with substrate application and a low increase in Ni and Zn, trace elements that helped the growth in height of the plants due to the thickening of the roots.
 
Implications of the research: the implications of this study compare national and international regulations, the biosolid is within the B classification (for forestry use).
 
Originality: broadens the understanding of the effect of biosolids in areas with recent deforestation.
NEW CONCEPTUAL IDEAS IN THE PROCEEDINGS OF THE SHEVCHENKO SCIENTIFIC SOCIETY. MEDICAL SCIENCES (DEDICATED TO THE 125TH ANNIVERSARY SINCE ITS FOUNDATION)
Authors: Zayachkivska Oksana , Lonchyna Vassyl , Kovalyshyn Vasyl , Bidiuk Dariy , Vovk Volodymyr , Volodko Nataliya , Danylyak Oleh , Dzis Ivan
Published: June 2023

2023 marks the 125th anniversary of the foundation of the Medical Commission of the Shevchenko Scientific Society’s publication, whose successor today is the journal Proceedings of the Shevchenko Scientific Society. Medical Sciences (Medical Sciences, ISSN 2708-8634; eISSN 2708–8642). Dr Eugen Ozarkevych, the founder and later the Chair of the Shevchenko Scientific Society’s Medical Commission in Lviv, initiated the publication of the scientific and practical journal “Medical Collection” («Лікарський збірник») in 1898. The journal’s primary purpose was to promulgate scientific achievements in the field of medicine in Ukrainian and to create Ukrainian medical terminology. This format allowed the reader to review scientific achievements in fundamental and clinical medicine, current medical problems, and new methods to in the prevention, diagnosis and treatment of various diseases. Ukrainian professional medical terminology was presented in this journal for the first time. Throughout its existence, this oldest medical journal, Medical Sciences, remains faithful to its historical multidisciplinary orientation. During the information and Russian war on the territory of Ukraine, Medical Sciences serves as a national heritage of Ukraine. It is recognized by international partners and indexed in scientometric bibliographic databases such as Scopus, Copernicus, Directory of Open Access Journals (DOAJ), and Google Scholar. As an Open Access Journal, it is read in 155 countries of the world.
HUMANISTIC BURDEN OF INFORMAL CAREGIVERS OF CHILDREN AND YOUNG ADULTS WITH NEWLY DIAGNOSED TYPE 1 DIABETES (T1D): A SYSTEMATIC LITERATURE REVIEW (SLR)
Authors: Cherkas Andriy , Allen Veleka , Bascle Stephanie , Kasireddy Ellen , Min Ren Chen , Pushkarna Divya , Pourrahmat Mir-Masoud , Mahieu Aymeric
Published: June 2023

OBJECTIVES: To describe the humanistic and economic burden of informal caregivers of children, adolescents, and young adults newly diagnosed with T1D.

METHODS: An SLR was conducted in MEDLINE®, Embase®, and PsycInfo® (search date: December 7, 2021) to identify clinical and observational studies assessing the humanistic burden experienced by informal caregivers (i.e., persons who provide unpaid care) of children, adolescents, and young adults aged 6 to 21 who were diagnosed with T1D within three months.

RESULTS: Four prospective cohort studies and one randomized controlled trial (RCT) were included. Caregiver sample size ranged from 59 to 191. Duration of T1D was 2 to 6 weeks. Among parents of children aged ≤11 years, mothers had a moderate posttraumatic stress disorder symptom severity (mean score: 11.9; standard deviation [SD]: 7.4), while fathers experienced mild severity (8.4; SD: 6.2; p < 0.001; Posttraumatic Diagnostic Scale). Mothers experienced clinically significant symptoms (defined as score >5) of anxiety (mean score: 7.5), social dysfunction (7.5), and somatic symptoms (5.1; General Health Questionnaire [GHQ]-28). Fathers showed clinically significant anxiety (5.5) and social dysfunction (7.7; GHQ-28) only. Results from the RCT indicated a mean hypoglycemia fear score of 46.6 out of 108 at diagnosis and 34.9 after 14 weeks, with a higher score indicating greater fear (Hypoglycemia Fear Survey-Parents). Parents of children aged >11 years experienced clinically significant social dysfunction (mean score for mothers/fathers: 7.6/7.1) and anxiety (mothers: 5.4; GHQ-28). Parents experienced moderate to extreme diabetes-specific stress (defined as score ≥5; mean score: 6.3; SD: 1.9) at diagnosis, and no to moderate stress (4.5; SD: 2.1) at 3 months. None of the included studies reported on economic burden.

CONCLUSIONS: This SLR highlights parents of children and young adults with newly diagnosed T1D experience caregiver burden, with a greater burden among mothers than fathers. Due to the paucity of evidence, further studies are warranted to better understand the humanistic burden among this group of informal caregivers.
STUDY OF CYTOCOMPATIBILITY OF DIFFERENT SUPPLEMENTS IN GEL COMPOSITIONS USED FOR THE TREATMENT OF PERIODONTAL DISEASES IN ORTHODONTIC PATIENTS VIA EXPLORATION OF MECHANISMS OF THEIR CYTOPATHIC AND CYTOPROTECTIVE EFFECTS IN CULTURED HUMAN AND MOUSE CELLS
Authors: Hodovanyi Oleg , Chukhray Natalya , Martovlos Olesia , Klyuchivska Olha , Ivasechko Iryna , Stoika Rostyslav
Published: June 2023

Introduction. A search continues for effective means which may reduce the overload of harmful factors, eliminate the inflammatory process, and reduce stress on the periodontal tissues during the active period of orthodontic treatment. We developed and patented the gel composition (GC) Benzidaflaziverdine prepared based on Proteflazid® (flavonoids) and benzydamine hydrochloride (BH) T-Sept® for the local treatment of the periodontal tissues in the form of a periodontal dressing in the orthodontic patients.

The aim of this study was to evaluate the cytocompatibility of different combinations of components in gel composition based on flavonoid complex and benzydamine hydrochloride (Benzidaflaziverdine) used for the treatment of periodontal diseases in orthodontic patients. For this, mechanisms of their cytopathic and cytoprotective effects will be explored using cultured human and mouse cells.

Methods. We studied the effect of different supplements used in GC Benzidaflaziverdine on the viability of pseudonormal human keratinocytes of the HaCaT line and mouse fibroblasts of the BALB-3T3 line, and mouse macrophages of the J774.2 line. Various methods of cell survival assessment were used: MTT-assay, staining of cells with fluorescent dyes Hoechst 33342 and Propidium iodide (PI), as well as a test for the genotoxic effects on cells (DNA comet assay). The antioxidant properties of the developed GC variants were evaluated using DPPH (1,1-diphenyl-2-picrylhydrazyl), Merck (Dam-stadt, Germany), and DCFDA-H2 (2’,7’-dichlorodihydrofluorescein diacetate).

Results. We demonstrated that the Sample containing gel base and BH in the form of a solution (Tantum Verde®) possessed weak prooxidant properties. While the Sample contained gel base, powdered BH (T-Sept®) and Sample containing gel base and powdered BH (T-Sept® and Proteflazid®) possessed pronounced antioxidant properties.

Conclusions. Tests with DPPH and DCFDA dyes were used to confirm the hypothesis regarding the cytoprotective effect of the patented gel composition Benzidaflaziverdine for local application in the form of a periodontal bandage due to the antioxidant activity of the flavonoid complex, which reaches the maximum level at the 2nd hour of exposure. This gel composition can be recommended for use in clinical periodontology for medical support of orthodontic patients before and during the active phase of orthodontic treatment.
CAN AN EYE BENEFIT FROM AN EGG? ADDITION OF LUTEIN IN FUNCTIONAL FOOD PRODUCTS AFFECTS THE MACULA LUTEA OF YOUNG HEALTHY INDIVIDUALS
Authors: Šušnjara Petar , Perić Leon , Drenjančević Ines , Vrbanić Matea , Kolobarić Nikolina , Mihaljević Zrinka , Kolar Mihael , Matić Suzana , Vuković Marija Jelić
Published: June 2023

Objectives: Lutein is a carotenoid and one of the primary pigments with antioxidative effects found in the macula lutea of an eye. The present study aimed to determine the effects of lutein consumption in the form of functional food (hen eggs enriched with n-3 PUFAs, selenium, vitamin D and lutein) on macula lutea morphology by using an optical coherence tomography (OCT) in young healthy subjects.

Participants and Methods: Randomized, double-blind, placebo-controlled pilot study included eleven healthy young subjects of both sexes (average age 18 to 28 years), assigned to a Nutri4 group and a control group. The Nutri4 group consumed nutritionally enriched hen eggs, while the control group consumed regular ones during the three-week protocol. At the beginning and end of the protocol, the subjects underwent ophthalmological examinations of the posterior eye segment by OCT. Venous blood was sampled to determine biochemical blood parameters (serum concentration of nutrients, liver enzymes, serum lipid profile, inflammatory markers).

Results: Consumption of Nutri4 eggs led to a significant increase in n-3 PUFAs, lutein and vitamin E concentrations in serum. The average macular thickness (lower outer layer of the macula) was increased in the Nutri4 group, while no significant change was found in the retinal thickness of the control group after the dietary protocol. Urea was raised, and gamma-glutamyl aminotransferase significantly decreased in the Nutri4 group, while aspartate aminotransferase was increased in the control group after the corresponding dietary protocol.

Conclusions: The consumption of enriched hen eggs has a beneficial effect on the thickness and volume of the retina.
REMOTE MONITORING FOR 5P (PREDICTIVE, PREVENTIVE, PARTICIPATORY, PERSONALIZED, AND PRECISION) CARDIOVASCULAR MEDICINE: PROGRESS AMIDST COVID-19 PANDEMIC
Authors: Bashkirtsev Oleksiy , Gaevska Vira , Bilous Zoriana , Lysa Liliia , Zimba Olena
Published: June 2023

The novel coronavirus disease 2019 (COVID-19) has emerged as a global pandemic that has affected the lives of billions of people. Clinical studies have reported an association between COVID-19 and cardiac diseases. Remote monitoring powered by wearable sensors impacts medical care by enabling health monitoring outside of the clinic. Wearable devices can provide a noninvasive and continuous multi-parameter assessment of ECG, Heart Rate Variability, arterial blood pressure, oxygen saturation and respiratory rate evaluation. Such monitoring may help predict and prevent cardiovascular events related to COVID-19 addresses the growing demand for a novel 5P (Predictive, Preventive, Participatory, Personalized, and Precision) medicine approach. This article aimed to review current and prospective advances in wearable devices for cardiac monitoring and their progress toward clinical application during the COVID-19 pandemic. We performed bibliometric analysis by Scopus, the largest and well organized bibliographic database and analyzed the top-cited articles in this field. Our analysis includes an overview of the most widespread practical implications of CVD-focused remote patient monitoring techniques based on wearable personalized devices. Assessment for both COVID-related conditions and general cases is included in the analysis. Recent studies have reported that cardiac abnormalities present in 19.7-27.8 % of hospitalized patients with COVID-19. COVID-19 associated myocarditis and heart rate abnormalities frequently occur. Additionally, patients with pre-existing CVD and hypertension are at high risk of worse outcomes. Data from several studies have identified atrial fibrillation as the most common form of arrhythmias in COVID-19 patients. Worsening of existing atrial fibrillation in COVID-19 patients is also a serious clinical concern. Implementation of wearable ECG devices for remote monitoring can improve the management of patients with atrial fibrillation and those at high risk for its development. Telecardiology based on wearable devices and remote monitoring allow out-of-hospital control of COVID-19 patients and patients suffering from chronic diseases at high risk of acute cardiovascular events, ensuring their early detection and tracking.
Discussion of the Japanese intervention in the Far East and Siberia in the House of Commons of Great Britain on March 14, 1918 as an event of the British policy of intervention in Russia
Authors: Mironiuk Sergei
Published: June 2023

The subject of this study is the discussion on March 14, 1918 in the House of Commons of Great Britain of the Japanese intervention in the Far East and Siberia as the events of the British intervention in Russia. In this regard, the speeches of deputies from various political forces and a high-ranking official of the Military Cabinet of the United Kingdom in the lower house of parliament are disclosed and analyzed. Thanks to the content analysis method and the system method, not only the positions and arguments of the participants in the discussion are presented in detail, but also the connection of their speeches with the military-political and international situation that developed in March 1918 and which influenced the dynamics of the discussion is revealed. The scientific novelty is that for the first time in the historiography of the Civil War and foreign intervention in Russia, a meeting of the lower house of Great Britain on the Japanese intervention in the Far East and Siberia is considered in the context of the history of British intervention policy in Russia and the significance of this event for this policy. The main conclusions of the study are that, despite the lack of a unified position in the House of Commons on the issue of Japanese intervention in the Far East and Siberia, the War Cabinet has caught the trend in favor of Japanese intervention in these Russian regions. As a result, he cautiously began to build a policy of intervention against Russia and to determine the place of Japanese intervention in it. Only large-scale events could force the House of Commons to adopt the policy that the Cabinet considered necessary to pursue in the current circumstances.
The question of the efficiency of the workflow of loop propellers
Authors:   Ufa University of Science and Technology, Mesropyan A. V. , Shabelnik Yu. A. ,   Ufa University of Science and Technology
Published: June 2023

The purpose of the work is to find ways to improve the characteristics of water propellers. Taking into account that propellers are the most widely used, considered one of the possible promising schemes - a loop-shaped propeller, which makes it possible to significantly improve the hydrodynamic, acoustic, vibration and cavitation characteristics of the propeller. The work uses numerical simulation, on the basis of which the propeller action curves are calculated to identify the influence of geometric parameters of the loop propeller on its working process. A comparison of various variants of loop propellers is carried out, identified the most perspective combination of geometric parameters. The requirements for the propulsors of perspective ships set the task of increasing the efficiency of propellers, which are solved by parametric optimization of the geometry of non-traditional schematic solutions of propellers.
The model of working process of the boom lifting and lowering mechanism with an additional damper in the form of hydrodiode
Authors:   Omsk State Technical University, Kaigorodov S. Yu.
Published: June 2023

In hydraulic and pneumatic systems, due to the many factors of their operation, pressure and flow fluctuations inevitably occur. Such fluctuations are formed during the operation of gas-liquid aggregates, during the passage of resistance flow, and their appearance is influenced by the material of manufacture (its rigidity) of the system. As a rule, such phenomena in systems are undesirable and lead to changes in the performance characteristics of the system relative to the calculated data. Thus, there are various mechanisms to "smooth out" the fluctuations of the systems. In hydraulic systems, in particular in lifting machines, I often use special devices for this — dampers. In this paper, it is proposed to use a hydrodiode as a damper. Having a different flow rate in the forward and reverse direction, it provides a different flow-drop characteristic when lifting and lowering the boom. This effect allows you to improve the positioning of the crane boom when lifting and lowering the boom.
Nadezhda Abramovna Kanover — “Above all for Her Were Books”
Authors: Khisamutdinov Amir A.
Published: June 2023

The article tells about the Far Eastern librarian Nadezhda Abramovna Kanover, a follower of the bibliographer Z.N. Matveev, who played a great role in the development of librarianship in Vladivostok. The publication is based on the documents from the Current Archive of the Presidium of the Far East Branch of Russian Academy of Science (FEB RAS), Central Scientific Library (CSL) of FEB RAS and Society for Study of Amur Region (SSAR) that for the first time reveal unknown facts from N.A. Kanover life and characterize the situation in library science in the Russian Far East in 1930s — 1950s. Heading several libraries including the future CSL FEB RAS and library of Primorskiy branch of State Geographical Society (SFGS), N.A. Kanover put much efforts in collecting collections and making conditions for book storage, as well as promoted book culture by publishing articles and organizing book exhibitions. Thanks to her, Vladivostok received a unique old-believers’ collection that belonged to bibliophile S.Ya. Ponosov. Printed editions of the collection are now kept in the SSAR library (former SFGS library), icons and religious artefacts are in the Primorsky Picture Gallery and the V.K. Arsenyev Museum of Far East History. These organisations presented a part of Ponosov’s collection at the joint exhibition “Legend of Belovodie” (Vladivostok, February 18 — July 30, 2023). The pages of Kanover’s biography connected with the last months of life of V.K. Arsenyev, the famous traveller and explorer of the Far East, are remarkable. While working in the library of SFGS, N.A. Kanover became its last secretary, dealing with the correspondent network of the branch. Unfortunately, almost nothing is known about the last years of her life, but N.A. Kanover’s work in the field of Far Eastern library science is not forgotten.
Generative Organic Electronic Molecular Design via Reinforcement Learning Integration with Quantum Chemistry: Tuning Singlet and Triplet Energy Energy Levels
Authors: Li Cheng-Han , Tabor Daniel P.
Published: June 2023

Generative molecular design strategies have emerged as promising alternatives to trial-and-error approaches for exploring and optimizing within large chemical spaces. To date, generative models with reinforcement learning approaches have frequently used low-cost methods to evaluate the quality of the generated molecules, enabling many loops through the generative model. However, for functional molecular materials tasks, such low-cost methods are either not available or would require the generation of large amounts of training data to train surrogate machine learning models. In this work, we develop a framework that connects the REINVENT reinforcement learning framework with excited state quantum chemistry calculations to discover molecules with specified molecular excited state energy levels, specifically molecules with excited state landscapes that would serve as promising singlet fission or triplet-triplet annihilation materials. We employ a two-step curriculum strategy to find a set of diverse promising molecules, then exploit a more focused chemical space with anthracene derivatives. Under this protocol, we show that the framework can find desired molecules and improve Pareto fronts for targeted properties versus synthesizability. Moreover, from this framework, we are able to find several different design principles used by chemists for the design of singlet fission and triplet-triplet annihilation molecules.
Inelastic Scattering of Formaldehyde on Au(111) surface
Authors: Biswas Rupayan , Lourderaj Upakarasamy
Published: June 2023

Inelastic scattering between gas molecules and surfaces is a fundamental process that has been investigated extensively. During this process, the energy exchange between the gas and the surface changes the internal and translational degrees of freedom of the scattered gas molecules. However, the energy transfer mechanism between the molecule and surface is quite complicated and not well understood. In recent gas-surface scattering experiments [Phys. Chem. Chem. Phys. 19, 19896 (2017)] on formaldehyde scattering off the gold surface, the scattered formaldehyde molecules had a high propensity to excite twirling motion about the C-O bond axis. In the work presented here, we used classical dynamics simulation to understand energy transfer in formaldehyde-surface collisions and to probe the mechanism of interconversion of translational energy to rotational energy. Our simulations capture the trend of the experiments for the formaldehyde-Au scattering, both in terms of rotational energy distribution and trapping probabilities, and provide an atomic-level mechanism for the energy transfer process during the scattering process.
Machine Learning Nucleation Collective Variables with Graph Neural Networks
Authors: Dietrich Florian , Rosas Advincula Xavier , Gobbo Gianpaolo , Bellucci Michael , Salvalaglio Matteo
Published: June 2023

The efficient calculation of nucleation collective variables (CVs) is one of the main limitations to the ap- plication of enhanced sampling methods to the investigation of nucleation processes in realistic environments. Here we discuss the development of a graph-based model for the approximation of nucleation CVs, which en- ables orders-of-magnitude gains in computational efficiency in the on-the-fly evaluation of nucleation CVs. By performing simulations on a nucleating colloidal system, we assess the model’s efficiency in both postprocessing and on-the-fly biasing of nucleation trajectories, thereby mimicking a multistep nucleation process from solu- tion. Moreover, we probe and discuss the transferability of the graph model approximations across systems by using the model of a CV based on sixth-order Steinhardt parameters. The model was trained with data collected from a colloidal system and was used to drive the nucleation of crystalline copper from its melt. Our approach is general and fully transferable to more complex systems as well as to different CVs.
Crisis, Trust, and the search for Political Security
Authors:   University of York, Milcíades Peña Alejandro
Published: June 2023

This chapter discusses the concept of "political insecurity" and how it has become increasingly relevant today, particularly in light of recent global crises such as the Covid-19 pandemic and the Russian invasion of Ukraine. The author argues that people respond to political insecurity by trying to rearticulate social and political trust differently and that different perceptions of political insecurity are behind the orientation other actors give to their responses to the crisis. The chapter provides a conceptual argument to conceive how different groups may respond to this pervasive sense of political insecurity and elaborates a typology of responses to political insecurity, unpacking four general answers and discussing a variety of political agendas, movement frames, and modes of governance associated with these ideal types.
MAP4K4 regulates forces at cell–cell and cell–matrix adhesions to promote collective cell migration
Authors: Alberici Delsin Lara Elis , Plutoni Cédric , Clouvel Anna , Keil Sarah , Marpeaux Léa , Elouassouli Lina , Khavari Adele , Ehrlicher Allen J , Emery Gregory
Published: June 2023

Collective cell migration is not only important for development and tissue homeostasis but can also promote cancer metastasis. To migrate collectively, cells need to coordinate cellular extensions and retractions, adhesion sites dynamics, and forces generation and transmission. Nevertheless, the regulatory mechanisms coordinating these processes remain elusive. Using A431 carcinoma cells, we identify the kinase MAP4K4 as a central regulator of collective migration. We show that MAP4K4 inactivation blocks the migration of clusters, whereas its overexpression decreases cluster cohesion. MAP4K4 regulates protrusion and retraction dynamics, remodels the actomyosin cytoskeleton, and controls the stability of both cell–cell and cell–substrate adhesion. MAP4K4 promotes focal adhesion disassembly through the phosphorylation of the actin and plasma membrane crosslinker moesin but disassembles adherens junctions through a moesin-independent mechanism. By analyzing traction and intercellular forces, we found that MAP4K4 loss of function leads to a tensional disequilibrium throughout the cell cluster, increasing the traction forces and the tension loading at the cell–cell adhesions. Together, our results indicate that MAP4K4 activity is a key regulator of biomechanical forces at adhesion sites, promoting collective migration.
Design of a Fractional Order Low-pass Filter Using a Diﬀerential Voltage Current Conveyor
Authors: Krishna Battula Tirumala , Janarthanan Midhunchakkaravathy
Published: June 2023

In this paper, an active implementation of a differential voltage current conveyor (DVCC) based on a low-pass ﬁlter operating in the fractional order domain is presented. The transfer function for a fractional order system is dependent on the rational approximation of sα. Diﬀerent methods used for calculating the rational approximation, including Carlson, Elkhazalil, and curve ﬁtting, are evaluated here. Finally, to validate the theoretical results, a fractional order Butterworth ﬁlter is simulated in the Pspice environment using the 0.5 micrometer CMOS technology with an R-C network-based fractional order capacitor. Additionally, using the Monte Carlo analysis, the impact of current and voltage faults on DVCC response is investigated. It has been inferred that realization with a wider bandwidth is possible.
Improving Quality of Watermarked Medical Images Using Symmetric Dilated Convolution Neural Networks
Authors: Pulgam Namita D. , Shinde Subhash K.
Published: June 2023

Rapid development of online medical technologies raises questions about the security of the patient’s medical data.When patient records are encrypted and labeled with a watermark, they may be exchanged securely online. In order to avoid geometrical attacks aiming to steal the information, image quality must be maintained and patient data must be appropriately extracted from the encoded image. To ensure that watermarked images are more resistant to attacks (e.g. additive noise or geometric attacks), different watermarking methods have been invented in the past. Additive noise causes visual distortion and render the potentially harmful diseases more difficult to diagnose and analyze. Consequently, denoising is an important pre-processing method for obtaining superior outcomes in terms of clarity and noise reduction and allows to improve the quality of damaged medical images. Therefore, various publications have been studied to understand the denoising methods used to improve image quality. The ﬁndings indicate that deep learning and neural networks have recently contributed considerably to the advancement of image processing techniques. Consequently, a system has been created that makes use of machine learning to enhance the quality of damaged images and to facilitate the process of identifying specific diseases. Images, damaged in the course of an assault, are denoised using the suggested technique relying on a symmetric dilated convolution neural network. This improves the system’s resilience and establishes a secure environment for the exchange of data while maintaining secrecy.
Performance Enhancement of Chaotic Error Correction Coding Using Consecutive Sequences
Authors: Sahar Asaad H. , Abdullah Hikmat N. , Saed Thamir R.
Published: June 2023

The use of chaotic dynamics for error correction is the subject of extensive research, as the approach allows to avoid the use of redundant data. This work proposes a new technique for non-coherent chaos communications for modifying error-correction depending on chaotic dynamics. In the proposed system, there are two consecutive sequences created from a comparable chaotic map, with the second series being created as the latest value of the initial one. Generation of a sequential chaotic sequence with a comparable chaotic dynamic delivers additional information to the receiver, allowing it to appropriately recover information and, hence, facilitate the receiver’s bit-error performance. For error correction and for detecting the symbol that is transmitted, a suboptimal technique based on the nearest distance between chaotic map trajectories over the n-dimensional sequence received is utilized. Simulation results show that the proposed error correction approach improves Eb/N0 as the dimension of the trajectory map increases, indicating that the method improves overall error correction performance. With the dimension of 4, a gain of 0.8 dB in Eb/N0 is achieved compared with an approach without any error-correcting schemes, at the bit-error probability of 10−3.
Performance Enhancement of Cooperative MIMO-NOMA Systems Over Sub-6 GHz and mmWave Bands
Authors: Saleh Ahmed A. , Ahmed Mohamad A.
Published: June 2023

In this paper, two radio links with different frequency bands are considered for base stations (BS) serving users via decode-and-forward (DF) cooperative relays. Backhaul and access links are proposed with sub-6 GHz and millimeter wave (mmWave) bands, respectively. Non-orthogonal multiple access (NOMA) is employed in the backhaul link to simultaneously transmit a superposed signal in the power domain, using the same band. The superposed signals, containing two signals that differ in terms of power allocation factors (PAFs), are designed for two selected DF relays in the BS. The two relays are chosen from several relays to be serviced by the BS based on a pairing algorithm that depends on different users’ circumstances. The furthest DF relay detects the incoming NOMA signal directly, while the nearest one applies successive interference cancellation (SIC) before extracting its signal. Each DF relay forwards the detected signals toward their intended users over mmWave channels. Three performance metrics are utilized to evaluate the system’s performance: outage probability, achievable throughput, and bit error rate. Comparisons between two mmWave bands in the access link (28 and 73 GHz) are made to demonstrate the superiority of the 28 GHz band in terms of the three performance-related metrics.
Energy Consumption in Wireless Systems Equipped with RES, UAVs, and IRSs
Authors: Samorzewski Adam
Published: June 2023

This paper investigates energy budget characteristics of mobile base stations (BSs) having the form of unmanned aerial vehicles (UAVs) equipped with radio frequency (RF) transceivers, intelligent reconﬁgurable surfaces (IRSs), and renewable energy sources (RES). The results obtained highlight the benefits and challenges related to using the aforementioned mobile BS, from the energy-related point of view. The specific cases researched involved two types of UAV devices, i.e. multirotor and ﬁxed-wing (airplane-like) aircraft.