bluuebunny/crossref_metadata_2025 huggingface dataset:
The concept of a closed resource cycle using an innovative information system for the development of bioenergy
Authors: Aristova A. A. , Novikova O. V.
Published: October 2023

RELEVANCE. The impossibility of using existing information systems, such as territorial waste management schemes (TSOs) to form a balance of supply and demand. TSOs do not allow us to identify the volume of demand and supply for processing technologies, and equipment manufacturers are not focused on understanding the balance of demand across the country. Technological development in terms of creating new facilities for energy waste processing requires justification of prospects for investment.

THE PURPOSE. Develop the concept of a closed resource cycle using information flows aimed at identifying participants in the process. The desired tool should provide an understanding of the need for the production of bioenergy equipment, the potential for demand for R&D, as well as the formation of state programs to support the creation of enterprises for the processing of municipal solid waste (MSW) and the production of bioenergy equipment.

METHODS. The development of the concept of a closed resource cycle is characterized by the design of the concept, which includes the methods of divergence, transformation, and convergence.

RESULTS. The paper describes the relevance of the topic associated with the impossibility of using existing information systems such as territorial waste management schemes (TSMS) to form a balance of supply and demand for processing technologies. Potential participants in the formation of a closed resource cycle throughout the life cycle of a waste processing project are identified, with the role of participants and the links between them, as well as the characteristics of the information flow of each participant, identified. A concept is proposed based on the formation of an information system in which each participant can maximize their needs for resources and effect.

CONCLUSION. The proposed system makes it possible to improve the existing waste management system, ensures the return of generated waste to the resource cycle. systems - the balance of generated and recycled waste. The main difference between the proposed system and the federal state information system for accounting and control of waste management of classes I and II is the principle of operation - the system is based on the source of waste generation, ensuring the balance of generating and processed waste.
The influence of the static component of the water supply network on the change in the power consumption of the pumping unit with frequency control
Authors: Kapansky A. A. , Pavlov V. V.
Published: October 2023

RELEVANCE.The effective functioning of urban water supply systems plays an important role in maintaining the normal life of cities and towns. Of particular importance is the management of pressure and the optimization of hydraulic regimes in water-wired networks, since they directly affect the reliability of water supply and the efficient use of resources. However, the determination of the optimal parameters and methods of regulation in each specific case requires careful research and analysis. In the context of a constant increase in requirements for automation of water supply and growing investments in its infrastructure, the problem of a correct feasibility study for such investments is of particular relevance.

PURPOSE. For smooth regulation of the pressure characteristic of the pump in the conditions of the need to maintain a given pressure of the water supply network, frequency converters are widely used. In the context of the significance of an accurate assessment of investment costs for the automation of pumping units, it becomes necessary to obtain equations that take into account the features of the operation of the water supply network at the pre-design stage. In this regard, the authors of the article set themselves the goal of studying the degree of influence of the static component of the water supply network on the change in the power consumption of the pumping unit with frequency regulation and testing the obtained dependencies on real statistics of the water and energy consumption modes of the Sozh water intake of the Gomel water utility.

METHODS. To solve the tasks, classical formulas of similarity of the pumping unit were used, reflecting the relationship between flow, pressure and power consumption. The mean squared error, the mean absolute error and the average absolute error in percentages were used as the evaluation metric for verifying the electric power supply model of the pumping unit.

RESULTS. The study demonstrates a significant improvement in the accuracy of power consumption modeling when using a modified coefficient reflecting the degree of power change when the frequency of the supply network changes. When using this approach, the standard error is reduced more than twice, from 0.35 to 0.167, the average absolute error is reduced from 0.347 to 0.165, and the average absolute percentage error is reduced from 0.20% to 0.08%.

CONCLUSIONThe conducted research confirms the effectiveness of the use of frequency control of pumping units, which provides a nonlinear change in electrical power, and demonstrates the possibility of more accurate forecasting of electricity consumption, taking into account the specifics of the water supply network. The results of this work can be useful for projects to optimize urban water supply systems, providing more accurate planning and use of resources.
Development of the automatic system for switching on the generating equipment for parallel operation with the electric power system
Authors: Fyodorova V. A. , Kirichenko V. F. , Glazyrin G. V.
Published: October 2023

RELEVANCE. Synchronization is an algorithm of actions to switch on synchronous generators for parallel operation with the power system and is an integral part of the power generation process. In practice, the process of synchronization involves some difficulties. The developed automatic synchronization device is digital and is integrated into the microprocessor terminal of the CPA-M complex, allowing to solve the arising problems by means of synchronization using different methods, including the developed method of accelerated synchronization.

THE PURPOSE. Create a comprehensive automated synchronization system based on the CPA-M microprocessor terminal (manufactured by a Novosibirsk company) with a variability of methods. Analyze existing synchronization devices, synthesize traditional synchronization methods, create a non-traditional intermediate method on their basis and integrate it into the automated system. Develop algorithms for the measuring and logical units, as well as for the synchronization system output unit. Experimental testing of algorithms by feeding real signals from voltage sensors on a physical model with a rotating synchronous machine (12 kW generator under test).

METHODS. The problem of research studied using theoretical and practical approaches. Theoretical methods - analysis, synthesis and classification. Practical methods - modeling in MatLab® environment, comparison, experiment, observation.

RESULTS. The paper describes the architecture, construction principles, settings selection of the synchronization system, as well as the interaction of its logical part with adjacent units (measuring unit, output unit). The work gives a comprehensive description of the system setup and integration of its measuring and logic parts into the CPA-M microprocessor terminal with a test on a physical object.

CONCLUSION. The system has extended functionality compared to analogs, allowing the use of traditional methods and the developed method of accelerated synchronization. The results predict reduction of capital costs for automation systems, as one device provides synchronization on several circuit breakers and reduction of generator operation costs, as using this system, machine parts exposed to unacceptable thermal and mechanical effects. The development is relevant for the elimination of emergencies in the power system and reducing thermal and dynamic impacts on the generator. The social importance of the project is the exclusion of the human factor. The prospect of using the development - in the educational process of the university and at real power facilities, in particular on large synchronous generators.
Increasing the production capacity of the chp by introducing fuel cells
Authors: Kirshina E. Yu. , Anikina I. D.
Published: October 2023

RELEVANCE. Improving the efficiency of the plant with an increase in operating capacity is one of the priority tasks of the development of power plants. One of the solutions to this issue is the introduction of fuel cells as the main or additional source of power and heat. The development of a high-quality scheme for the introduction of fuel cells into thermal power plants will increase their production capacity with the possibility of further reducing the carbon footprint by reducing the consumption of natural gas.

THE PURPOSE. To develop thermal power plant schemes in combination with fuel cells to increase the thermal efficiency of the thermal power plant. To consider the types of fuel cells and the principle of their operation and to analyze their effectiveness with justification of the choice of a specific type for further calculations. To study the methods and principles of hydrogen extraction with the choice of the optimal solution directly within the framework of this work. Perform a technical and economic analysis of the introduction of fuel cells to the station.

METHODS. When solving this problem, we used a method based on the law of conservation of energy under stationary operating conditions of the circuits was used. The chosen calculation method was implemented using MatLab, DvigWT and Microsoft Excel software.

RESULTS. This article presents three types of thermal power plant schemes in a layout with fuel cells and an indication of their specific advantages and disadvantages. The analysis of methods of hydrogen extraction with the choice of one of them by performing an estimate of the cost of hydrogen production is carried out. A technical and economic analysis of the introduction of fuel cells at the plant has been carried out, taking into account the cost of hydrogen production. The carbon footprint from the introduction of fuel cells at the station has been calculated.

CONCLUSION. Using fuel cells at the CHP increases the production efficiency of electricity generation by more than 20%, and the power of the power generation unit increases by more than 30 MW. Calculations have shown that the use of fuel cells leads to a significant increase in production capacity, but it is necessary to study in more detail the methodology for calculating the fuel cells themselves and the ways of hydrogen production.
Experimental studies of electrical and mass transfer processes in reverse electrodialysis
Authors: Chichirov A. A. , Filimonova A. A. , Chichirova N. D. , Mayorov E. S.
Published: October 2023

OBJECT. Experimental studies on optimization of the output electrical and mass transfer characteristics of the reverse electrodialysis process.

METHODS. System analysis techniques were used in this work and a mathematical model was developed to describe the movement of water streams and the concentrations of substances in them. The equipment involved, designed for experimental and industrial testing of the proposed technologies with technical characteristics of the developed apparatuses and installations, is described.

RESULTS. RED (reverse electrodialysis) is a new membrane technology for renewable energy production using salinity gradients. The ultimate goal of RED is to achieve the highest possible value of power density, which depends on several parameters related to the intrinsic electrochemical characteristics of the membranes, stack configuration (number of cell pairs, channel length), hydrodynamics, nature of the working solutions (ionic composition, concentration), and others. The paper presents experimental studies on the influence and modeling of various parameters of the reverse electrodialysis operation on the output electrical characteristics of the system.

CONCLUSIONS. It is shown that the system output power is significantly influenced by the composition of solutions in the near-electrode chambers, external load and internal resistance, concentrations of working solutions and time of the experiment. The maximum electrical efficiency was 56% (power density 0.34 W/m2) in semi-industrial electrodialysis reverse electrodialysis experiments using model NaCl solutions, K3Fe(CN)6/K4Fe(CN)6 and Chinese 0.6 mm thick IONSEP membranes.
Autoritäre Individualisierung
Authors: Beier Raffael
Published: October 2023

Dieser Beitrag zeigt auf, wie Umsiedlungen im Rahmen von Marokkos staatlichem Wohnungsprogramm »Städte ohne Slums« die Natur und Dynamik von sozialen Konflikten um den Zugang zu angemessenem Wohnraum verändern. Dabei wird das Konzept der »autoritären Individualisierung« entwickelt, einerseits bezogen auf die zur Konfliktminimierung eingesetzten Praktiken staatlicher Akteur:innen während der Umsiedlung, andererseits auf die Umsiedlungskonditionen, die Gemeinschaften auseinanderreißen und die Entkollektivierung von Konflikten forcieren.
Kognitive Verhaltenstherapie bei Depressionen im höheren Lebensalter
Authors: Hautzinger Martin , Böhringer Sabine , Dafsari Forugh Salimi
Published: October 2023

Verstärkerverlust, dysfunktionale Überzeugungen sowie fehlende Möglichkeiten zur Selektion, Kompensation und Optimierung im Alter können die Entwicklung einer Altersdepression (engl: late-life depression, LLD) begünstigen. Die kognitive Verhaltenstherapie (KVT) bietet durch behaviorale und kognitive Umstrukturierung zahlreiche Möglichkeiten, um Depressionen auch im höheren Lebensalter effektiv zu behandeln. Dies wurde zuletzt in der multizentrischen Therapiestudie CBTlate (Dafsari et al. 2023) evaluiert.
Analysis of Spermiology Research After Passing COVID-19
Authors: Fedoruk Oleksandr , Vladychenko Kostіantуn , Zaitsev Valerii , Iluk Iryna , Yuzko Victoria
Published: October 2023

The SARS-CoV-2 virus is able to damage the blood-testicular barrier and testicular and epididymal tissues. Cytokine release syndrome due to COVID-19 can lead to suppression of the hypothalamic-pituitary-gonadal axis, disorders of the blood-testicular barrier integrity, leukocyte infiltration of testicular tissue, and damage of germ cells. Biochemical processes during a severe course of COVID-19 are accompanied by systemic oxidative stress, which negatively affects the male reproductive system.
The objective: to analyze the impact of COVID-19 on the results of spermiological study.
Materials and methods. 160 men were examined. The average age of the men included in the study was 32.53±8.22 years. Patients with genital tract infections were excluded from the study. Spermiological research was carried out before and after COVID-19 disease.
Results. Subfertility was diagnosed in men who were examined with complaints about the absence of pregnancy in their wives during the year. At the beginning of the examination for subfertility, all patients were diagnosed with laboratory-confirmed COVID-19. Most of the men had a mild course of COVID-19 – 113 (70.62%) patients, moderate one – 45 (28.13%), severe – 2 (1.25%).
A repeat spermogram was performed for patients in 3 months after recovery from COVID-19. Most significant markers in spermograms after COVID-19 was a probable increase in viscosity and dilution time, as well as a tendency to decrease the percentage of actively moving spermatozoa.
Conclusions. The most significant changes in spermograms after COVID-19 disease are increased viscosity and dilution time of ejaculate above the reference values, which was interpreted as acquired viscopathy after COVID-19.
To date, the impact of the SARS-CoV-2 virus on male reproductive health has not been definitively studied and requires further in-depth research.
Hyperactive Bladder in Men: Modern Recommendations and Practical Approaches to Diagnosis and Treatment
Authors: Zaitsev Valerii
Published: October 2023

An analysis of modern recommendations of the European Association of Urologists (EAU) regarding diagnosis and treatment options for overactive bladder (OAB) in men was carried out, taking into account real practice.
The article discusses the general principles of diagnosis and treatment of non-neurogenic male lower urinary tract symptoms (LUTS) in the case where the predominant clinical features are urgency, pollakiuria, nocturia, which can be combined with urinary incontinence – complaints typical of GSM. Approaches to the treatment of such patients are still not clearly defined, and the effectiveness of treatment does not always satisfy both doctors and patients. It is indicated that in recent years, doctors have received completely new treatment options for this disease in men. In addition to adrenoblockers (AB) and cholinolytics (HL), phosphodiesterase-5 inhibitors (IPDE) and beta-3 adrenomimetics (BAM) were added, which showed their effectiveness and safety not only in women, but also in men. In addition, new options for combined treatment appeared in the recommendations – in addition to AB+HL, a combination of AB+IPDE and HL+BAM is possible.
The article discusses various groups of drugs and their combinations recommended for the treatment of LUTS, the specifics of their use and possible side effects, especially the risks of urinary retention in men with infravesical obstruction. It is emphasized that the EAU currently recommends the use of HL in men with moderate and severe LUTS, who mainly have symptoms of accumulation with a residual urine of no more than 150 ml. It is recommended to determine the patient’s residual urine after a week of taking HL.
The practical aspects of choosing the category of patients to be treated with certain drugs (or their combinations) are discussed, taking into account the possible side effects of each of the treatment options.
The Historical Aspects of Urolithiasis
Authors: Nikitin Oleh , Samchuk Pavlo , Krasiuk Oleksii , Korytskyi Andrii , Komisarenko Ihor , Nasheda Serhii
Published: October 2023

The prevalence of urinary stone disease (USD) depends on geographic, climatic, ethnic, dietary, and genetic factors. USD of the upper urinary tract occurs 2–3 times more often in men than in women. The risk of stone formation during the human life is from 5% to 10 %, and the prevalence of USD in different regions varies from 1% to 20%. In the countries with a high life standard (for example, Sweden, Canada, the USA), the prevalence of this disease is very high and is more than 10 %. Unfortunately, in some regions there is the increased indices more than 37 % over the past 20 years.
In Ukraine, USD ranks the second place among all urological diseases, more than 52000 patients are registered annually for the first time, and the frequency of occurrence varies from 30% to 45% of all urological pathologies. Mostly young people are affected, the disease progresses with symptoms of acute and chronic pyelonephritis and frequent recurrence of USD (30–80%). This course of USD leads to the development of kidney failure, disability and mortality of patients.
The formation of calculi in the kidneys is a complex and polyetiological process that includes endogenous (age, sex and heredity) and exogenous factors (geographical conditions, climate, nutrition).
USD has been well known for centuries. It has been proven that humanity has been suffering from this disease for over 7000 years. This is clearly confirmed by various archaeological finds, as well as writings about painful stones and therapeutic procedures that were carried out to remove them.
Taking into account the importance and spread of USD, the article presents an overview of the historical development of diagnosis and treatment of this pathology in different regions of the world, an analysis of diagnostic and treatment methods, starting from early antiquity and up to the most modern approaches.
Evaluation of COL1A1 gene rs1800012 polymorphism and non-differentiated connective tissue dysplasia as predictors of pelvic organ prolapse
Authors: Proshchenko O.M. , Govseev D.O.
Published: October 2023

The article presents data on the association of the rs1800012 polymorphism of the procollagen type I alpha (α) 1 COL1A1 gene and the stigma of non-differentiated connective tissue dysplasia with the development of vaginal prolapse in the Ukrainian population.The objective: to determine the prognostic significance of the rs1800012 polymorphism of the procollagen type I alpha (α) 1 COL1A1 gene and the clinical and anamnestic stigmata of non-differentiated connective tissue dysplasia as factors associated with the development of vaginal prolapse in the Ukrainian population.Materials and methods. In order to achieve the research aim, polymorphism in the rs1800012 locus of the COL1A1 gene was studied by polymerase chain reaction in venous blood samples of 120 women. The main group included 60 patients with vaginal prolapse III, IV, who had indications for surgical correction; to the comparison group – 60 women without pelvic floor dysfunction.The diagnostic algorithm included a physical examination, taking the general and gynecological history, evaluation of the state of the pelvic floor and urogenital dysfunction. The severity of pelvic floor prolapse was assessed based on the Pelvic Organ Prolapse Quantification (POP-Q) classification.Results. During the analysis of clinical and anamnestic data in women of both research groups, concomitant pathology with a possible connection with signs of non-differentiated connective tissue dysplasia was identified as risk factors for the development of pelvic floor dysfunction: 37 people in the main group versus 21 patients in the comparison group (χ2=8.5428; p=.003469).The prevalence of rs1800012 polymorphism of the gene procollagen type I alpha (α) 1 COL1A1 in the homozygous variant (TT) in this study was found in the main group in 8 samples (13.33%) and only in 2 (3.33%) – in the comparison group. The presented polymorphism in the heterozygous variant (GT) in the main group was determined in 19 samples (31.67%) and only in 12 (20.00%) – in the comparison group (χ2=7.3199; p=.025734).Conclusions. The association of the rs1800012 polymorphism in the COL1A1 gene (p=.025734) and clinical and anamnestic stigmata of non-differentiated connective tissue dysplasia (NDST) (p=.003469) with the development of pelvic organ prolapse was established, which is evidence of the importance of genetic changes and connective tissue remodeling in the etiology of genital prolapseThe presence of NDST stigma increases the risk of pelvic organ prolapse by 3 times (OR=3.788; 95% CI: 1.664–8.624), polymorphism rs1800012 in the COL1A1 gene – by 2 times with the heterozygous variant (OR=2.400; 95% CI: 1.230–6.633) and 3 times with the homozygous variant (OR=3.275; 95% CI: 1.300–19.969).
Disaggregating the Effects of STEM Education and Apprenticeships on Economic Mobility: Evidence From the LaunchCode Program
Authors: Jabbari Jason , Chun Yung , Huang Wenrui , Roll Stephen
Published: October 2023

We conduct an impact analysis on a unique technology certificate and apprenticeship program offered by LaunchCode. We merge administrative data containing entrance exam scores with survey data for individuals that were (a) not accepted, (b) accepted but did not complete the course, (c) completed the course but not the apprenticeship, and (d) completed the course and the apprenticeship. By using entrance exam scores as an instrumental variable, we conduct an intent-to-treat model, finding that program acceptance was significantly associated with increased earnings and probabilities of working in a science, technology, engineering, and math (STEM) profession. Then, by using machine learning-generated multinomial propensity score weights, we conduct a treatment-on-treated analysis, finding that these increases appear to be primarily driven by the apprenticeship component.
The Relationship between Nifedipine and Postpartum Blood Loss in Patients with Preterm Labor
Authors: Kiyak Huseyin , Korkmaz Nazli , Caypinar Sema Suzen , Acar Zuat , Aydin Alev Atis , Ustun Batuhan , Aytufan Zubeyde , Gedikbasi Ali
Published: October 2023

Background: The purpose of the study, to determine whether exposure to nifedipine before delivery is associated with an increased risk of postpartum blood loss in patients with preterm labor. Methods: This was a retrospective study screening a total of 486 patients who were admitted due to preterm labor from 2012 to 2019. Patients who were given nifedipine for tocolysis before delivery were considered as the study group (n: 240), and the patients who gave birth without getting tocolysis were considered as the control group (n: 246). The dose of nifedipine used during the last 24 hours, 72 hours and 1 week before delivery, the total dose of nifedipine given and the duration from the last dose to the delivery were recorded separately. Hemoglobin and hematocrit and platelet values measured before and 6 hours after delivery were recorded and postpartum bleeding amount was calculated. Results: No significant difference is observed in terms of mean difference between pre/postpartum hemoglobin and hematocrit levels between control group and nifedipine group (p > 0.05). But when subgroups that are created according to the time of use of nifedipine before delivery, a positive correlation was observed between difference in hemoglobin and hematocrit levels between prepartum and postpartum and nifedipine dosage for the last 24 hours (r = 0.176, p = 0.006), (r = 0.139, p = 0.030), but not for 72 hours or one week. Conclusions: The use of nifedipine in patients with preterm labor for tocolysis may be associated with increase in postpartum blood loss in the last 24 hours before delivery.
Efficiency Improvement at Signalized Intersections: Investigating Smart Green Time Allocation with Two LiDAR Sensors and AIMSUN Microsimulation
Authors: Ansariyar Alireza
Published: October 2023

As urban populations continue to grow, efficient traffic management becomes paramount in reducing congestion, enhancing air quality, and improving overall quality of life. This study addresses the critical issue of intersection efficiency through the implementation of smart green time allocation strategies at a signalized intersection equipped with two LiDAR sensors. This research aims to investigate optimal green time allocations provided by two LiDAR sensors and analyze the LiDAR results by microsimulation in AIMSUN. The research first introduces the concept of LiDAR-equipped signalized intersections and their potential to enhance traffic control precision. Two LiDAR sensors are strategically placed at the intersection of Marlboro Pike and Brooks Dr. in Coral Hills, MD, USA to capture real-time data on vehicle and pedestrian movements. The data are then processed to generate accurate and dynamic traffic profiles, ensuring the responsiveness of the green time allocation system to varying traffic conditions.The heart of this study lies in the integration of AIMSUN microsimulation with LiDAR data. Through meticulous modeling and simulation, the research explores the optimal green allocation at morning, mid-day, and afternoon peak hours’ scenarios to comprehensively assess the impact of LiDAR-enabled dynamic signal control. The findings demonstrate that smart green time allocation, informed by real-time LiDAR data and implemented through AIMSUN microsimulation, significantly enhances intersection efficiency. By adapting signal timings to real-time traffic demands, congestion, travel times, and emissions are reduced. Furthermore, this research highlighted that the optimal green time allocation in morning, mid-day, and afternoon peak hour intervals can improve the delay time by 55.3%, 59.7%, and 55.6%, respectively.In conclusion, this paper sheds light on the potential of LiDAR technology to transform intersection management. Through a case study involving two LiDAR sensors and AIMSUN microsimulation, it reveals the tangible benefits of dynamic signal control in enhancing intersection efficiency and creating more sustainable urban environments. These findings are pivotal in advancing the discourse on modern urban traffic management and promoting data-driven solutions for the challenges of today's cities.
THE EFFECTS OF A WEB-BASED DIDACTIC DESIGN ON TEACHERS’ DIGITAL COMPETENCE AND THE USE OF TECHNOLOGICAL TOOLS IN THE ENGLISH CLASSROOM
Authors: Camacho-Vasquez Gonzalo
Published: October 2023

The research study intends to assess the effectiveness of a Web-Based Learning Design to train English Teachers in incorporating technology into language teaching. The research process follows the stages of the ADDIE instructional design. This study is a mixed-methods quasi-experimental (intervention) design since the researcher collects and analyzes quantitative and qualitative data and integrates the information within an intervention to capture the participants' personal experiences (Creswell & Creswell, 2018). The target population comprises English teachers in Colombia who voluntarily accept to be part of the study.
White Paper on Forensic Child Interviewing: Research-based recommendations by the European Association of Psychology and Law
Authors: Korkman Julia , Otgaar Henry , Geven Linda , Bull Ray , Cyr Mireille , Hershkowitz Irit , Mäkelä Juha-Matti , Mattison Michelle , Milne Becky , Santtila Pekka Olavi , van Koppen Peter , memon amina , Danby Meaghan , Filipovic Luna , Garcia Francisco Javier , Gewehr Elsa , Bell Olivia Gomes , Järvilehto Liisa , Kask Kristjan , Berlin Andre Körner MSB , Lacey Eimear , Lavoie Jennifer , Magnusson Mikaela , Miller Quincy Claire , Pakkanen Tom , Peixoto Carlos Eduardo , Perez Christina , Pompedda Francesco , Su I-An , Sumampouw Nathanael Elnadus Johanes , van Golde Celine , Waterhouse Genevieve , Zappalà Angelo , Volbert Renate
Published: October 2023

The recommendations of this white paper are jointly drafted by researchers in childinterviewing active within the European Association of Psychology and Law and are focusedon cases in which children are interviewed in forensic settings, in particular withininvestigations of child sexual and/or physical abuse.
The quantum information through the path integrals and the role of the Green’s Funtion
Authors: Vita Alessandro
Published: October 2023

This work was conducted independently. In this article, we discuss through a principle of action the quantum information in relation to the information paradox. The information paradox, which arises in black hole physics, suggests that information can be lost when matter falls into a black hole, which contradicts the principle of information conservation in physics. We propose that the principle of action, which asserts that the action of a physical system is conserved, can be applied to information, showing that information is conserved in a similar way to energy and momentum. Through mathematical models and theoretical analysis, we show that the conservation of information can be understood as a result of the evolution of a system and probability amplitudes in quantum mechanics.This work was conducted independently.
Pacific shoreline erosion and accretion patterns controlled by El Niño/Southern Oscillation
Authors: Vos Kilian , Harley Mitchell , Turner Ian , Splinter Kristen
Published: October 2023

In the Pacific Basin, the El Niño/Southern Oscillation (ENSO) is the dominant mode of interannual climate variability, driving substantial changes in oceanographic forcing and impacting Pacific coastlines. Yet, how sandy coasts respond to these basin-scale changes has to date been limited to a few long-term beach monitoring sites, predominantly on developed coasts. Here we use 38 years of Landsat imagery to map shoreline variability around the Pacific Rim and identify coherent patterns of beach erosion and accretion controlled by ENSO. On the basis of more than 83,000 beach transects covering 8,300 km of sandy coastline, we find that approximately one-third of all transects experience significant erosion during El Niño phases. The Eastern Pacific is particularly vulnerable to widespread erosion, most notably during the large 1997/1998 El Niño event. By contrast, La Niña events coincide with significant accretion for approximately one-quarter of all transects, although substantial erosion is observed in southeast Australia and other localized regions. The observed regional variability in the coastal response to ENSO has important implications for coastal planning and adaptation measures across the Pacific, particularly in light of projected future changes in ENSO amplitude and flavour.
New insights into the Upper Pleistocene directed blast eruption, Popocatépetl volcano, México
Authors: Lira Beltrán Reyna , Caballero Lizeth , Sourisseau Delphine , Ruiz Chavarria Gerardo , Lerner Geoffrey
Published: October 2023

Volcanic eruptions of the directed blast type can affect areas of hundreds of square kilometres and reach more than 25 km from the crater, as observed in the directed explosions of the Bezymianny (1956) and Mt. St. Helens (1980) volcanoes. These directed eruptions are characterized by powerful explosions with a significant lateral component that can travel at speeds above 100 m/s, which includes catastrophic high-energy pyroclastic density currents. We report new data and evidence on a blast originating from the Popocatépetl volcano related to a strong eruption resulting from the sector collapse of the volcanic edifice at about 23,500 ka BP, extending to the SW. The objective of this work is to study the blast-related deposits and to provide new data on their distribution in the S-SW sector of the volcano. The area studied is located between the municipalities of Ecatzingo and Atzitzihuacán, where 58,870 inhabitants live. We have visited 157 localities where we made descriptions of the eruptive sequence and stratigraphic sections. Within these localities, we found 42 new sites where the blast deposit outcrops. In the Barranca San Juan Amecac in the state of Puebla, the blast deposit is more than 20 m thick. We associate these blast deposits with three facies: confined channel-fill facies dominated by concentrated PDCs, confined channel-fill facies dominated by dilute PDCs, and unconfined interfluve and upland facies. With the new data we have estimated the dispersion area of the directed blast to be approximately 338 km^2. The most distal deposit we have located is 25 km from the volcano crater. Finally, twenty-nine of the new outcrops associated with PDCs of the directed blast are outside the danger polygon associated with concentrated PDCs of the Popocatepetl volcano related to a Plinian eruption linked with a low probability of occurrence.
#NousSavons : en mission pour dire la vérité
Authors: Boursier Axel
Published: October 2023

Background: In July 2021, in France, the hashtag “#NousSavons” (“#WeKnow”) emerged, aimed at rallying COVID skeptics on Twitter. Creating a genuine online community, this hashtag mobilized its members by having them question dominant forms of knowledge. This article examines the architecture of the discourses developed by the members of the #NousSavons community.

Analysis: The analysis considers two of this community’s initiatives that supported a conspiracy-based perception of COVID-19: establishing the legitimacy of their perception of the crisis and publicizing this perception.

Conclusions and implications: This article shows the diversity of evidence put forward by the community as well as the latter’s singular positioning with regard to the truth. It also analyzes the refinement of the communication practices that were implemented in order to convince members of the public sphere of the legitimacy of their viewpoint.
ÜNİVERSİTE ÖĞRENCİLERİNDE KARAR VERMEYİ ERTELEME DAVRANIŞININ AKADEMİK BAŞARI VE SÜREKLİ KAYGI AÇISINDAN İNCELENMESİ
Authors: GÜLTEKİN Sena , GÜNEY Zafer
Published: October 2023

Günlük hayat içerisinde çoğu kişinin yaşamlarının her döneminde yapmaları gereken işlerini ve sorumluluklarını erteledikleri gözlemlenmektedir. Bireylerin erteleme davranışı göstermelerinin pek çok nedeni bulunmakla birlikte erteleme davranışındaki en temel nedenin, bireyin yeteri kadar zamanını iyi kullanabilme yeteneğine sahip olmadığı görülmektedir. Kişilerin erteleme davranışı arttıkça akademik başarıları düşmekte ve kaygı düzeyleri artmaktadır. Bu çalışmanın amacı, hazırlık sınıfı dâhil üniversite öğrencileri ile lisansüstü öğrenim gören bireylerin karar vermeyi erteleme (KVE) davranışlarının akademik başarı ve sürekli kaygı açısından incelenmesidir. Araştırma sürecinde çalışma grubu; İstanbul, Ankara ve Mersinde bulunan vakıf ve devlet üniversitelerinde öğrenim gören yaşları 18 ile 48 arasında olan 171’i kadın 29’u erkek toplam 200 üniversite öğrencisinden oluşturmaktadır. Araştırma verileri; Mann (1982) önderliğinde şekillendirilen ve Balkıs tarafından Türkçeye uyarlanan “Karar Vermeyi Erteleme Eğilimi Ölçeği”, Öner ile Le Compte tarafından Türkçeye uyarlanan “Sürekli Kaygı Ölçeği” ve demografik bilgi formu aracılığıyla toplanmıştır. Yapılan çalışmanın sonucunda karar vermeyi erteleme davranışı ile sürekli kaygı arasında orta seviyede pozitif, anlamlı bir ilişki bulunmuş olup, akademik başarıları ile anlamlı bir ilişki bulunmadığı görülmüştür. Cinsiyetler arasında ise karar vermeyi erteleme davranışlarının hem akademik olarak sergiledikleri başarı hem de sürekli kaygıları bakımından anlamlı fark olmadığı görülmüştür. Bununla birlikte yaş, sınıf düzeyi ve sosyoekonomik düzey değişkenleri ile KVE davranışları arasında da anlamlı bir ilişkinin varlığı bulunmamaktadır. Genel not ortalaması ve karar vermeyi erteleme davranışı arasında anlamlı korelasyon bulunmuştur. Tukey analiz sonuçlarına göre ise akademik ortalaması 2.01-3.00 ve 3.01-4.00 arasındaki üniversite öğrencilerinin karar vermeyi erteleme davranışı arasında anlamlı korelasyon bulunmuştur.
OKUL ÖNCESİ ÖĞRETMENİ ADAYLARININ DİJİTAL OKURYAZARLIK ÖZ YETERLİK İLE TEKNOLOJİYE YÖNELİK TUTUMLARI ARASINDAKİ İLİŞKİNİN İNCELENMESİ
Authors: GÜLAY OGELMAN Hülya , DEMİRCİ Fatma , GÜNGÖR Hande
Published: October 2023

Bu araştırmanın amacı, okul öncesi öğretmen adaylarının dijital okuryazarlık öz yeterliklerinin teknolojiye yönelik tutumları üzerindeki yordayıcı rolünün incelenmesidir. Araştırmanın çalışma grubunu bir devlet üniversitesinde Okul Öncesi Öğretmenliği Programına kayıtlı olan 142 lisans öğrencisi oluşturmaktadır. Araştırmada, Kişisel Bilgi Formu, Öğretmen Adaylarının Dijital Okuryazarlık Öz-yeterliliği Ölçeği ve Öğretmen Adayları için Teknolojiye Yönelik Tutum Ölçeği olmak üzere üç ölçme aracı kullanılmıştır. Verilerin toplanması sürecinde Google Form uygulaması kullanılmıştır. Çalışmanın verileri SPSS 21.0 paket programında analiz edilmiştir. Bulgulara göre dijital okuryazarlık öz yeterliğinin üretim, kaynak kullanabilme, uygulama kullanabilme ve destek alt boyutları ile teknolojiye yönelik tutumlar arasında olumlu yönde orta düzeyde anlamlı ilişki bulunmaktadır. Bu sonuca göre dijital okuryazarlık öz yeterliğinin üretim, kaynak kullanabilme, uygulama kullanabilme ve destek alt boyutları arttıkça/azaldıkça teknolojiye yönelik tutumlar artmaktadır/azalmaktadır. Ayrıca dijital okuryazarlık öz yeterliğinin üretim, kaynak kullanabilme, uygulama kullanabilme ve destek alt boyutları, teknolojiye yönelik tutumları anlamlı biçimde yordayabilmektedir. Teknolojiye yönelik tutumun %11’inin üretim, %24’ünün kaynak kullanabilme, %18’inin uygulama kullanabilme, %17’inin destek alt boyutuyla açıklanabileceği söylenebilir.
ERGENLERDE AKRAN ZORBALIĞI, EMPATİK EĞİLİM VE HOŞGÖRÜ ARASINDAKİ İLİŞKİLERİN İNCELENMESİ
Authors: TÜRKAN AYDIN Burcu , PEKER Adem , KELEŞ Osman , CENGİZ Serkan
Published: October 2023

Akran zorbalığı ergenler arasında yaygın bir sorun haline gelmiştir. Ancak akran zorbalığını önleme gelişimine hangi değişkenlerin katkıda bulunduğu konusunda nispeten az şey bilinmektedir. Bu çalışma, ergenlerin empatik eğilim, hoşgörü ve akran zorbalığı arasındaki ilişkileri incelemiştir. Çalışmaya 9 ile 12. sınıflar arasında öğrenim gören 372 öğrenci katılmıştır. Veriler yapısal eşitlik modeli ve bağımsız örneklemler için t testi kullanılarak incelenmiştir. Sonuçlar, öğrencilerin empatik eğilimleri ve hoşgörü düzeyleri ile akran zorbalığı arasında anlamlı bir ilişki olduğunu ortaya koymuştur. Ayrıca empatik eğilim ve hoşgörünün akran negatif olarak yordadığı belirlenmiştir. Bunun yanında mevcut araştırmada, öğrencilerin akran zorbalık düzeyleri cinsiyete göre anlamlı farklılık göstermiştir. Erkek öğrencilerin akran zorbalık puanları kız öğrencilere göre daha yüksek bulunmuştur. Mevcut sonuçlar, akran zorbalığını azaltmada empati ve hoşgörü gibi olumlu özelliklerin rolünü vurgulamaktadır.
Study of the VAC of the EPCTT process with varying electrode parameters
Authors: Rakhadilov B.K. , Berdimuratov N.E. , Zhurerova L.G. , Bayatanova L.B. , Kurbanbekov Sh.R. , Satbayeva Z.A.
Published: October 2023

Nowadays the treatment of machine parts, instruments is one of the actual topics in the modern world. One of the modern processing method is chemical-thermal treatment of parts, in which there is an increase of hardness in the surface part to increase wear resistance, while the core of the part remains in a ductile state for resistance to shock loading. The solution to this problem could be the electrolytic plasma chemical-thermal treatment of the parts. This method has a number of advantages over traditional methods, such as costeffectiveness and speed of processing. In the present work the influence of changes in technological parameters on the volt-ampere characteristics of electrolyte-plasma chemical-thermal treatment unit is presented. A solution of soda ash (Na₂CO₃), urea (CH₄N₂O) in distilled water was used as an electrolyte. According to the results of the study current-voltage diagrams were plotted by varying the diameter of the anode (D=90; 110;130 mm) and the distance between the electrodes (L=50;70; 90 mm). According to the analysis, in the voltage range of 180-220 V, with anode diameter D=110 mm and electrode spacing D=70 mm, a more stable vapor-gas envelope is formed. It was found that by changing the anode diameter, respectively the ratio of active and passive electrodes we can significantly influence the formation of stable vapor gas shell and establishment of the optimum mode of treatment of parts.
Effects of conditions on thе synthesis and properties of Bi-2234 HTSC ceramic produced from the melt
Authors: Uskenbaev D.E. , Nogai A.S. , Uskenbaev A.D. , Nogai E.A.
Published: October 2023

The article presents the results of a study aimed at obtaining the formation of superconducting phases and the formation of a high texture of particles that affect the current-carrying characteristics in ceramics of the composition Bi1.6Pb0.4Sr2Ca3Cu4Oy and the study of their properties. For the synthesis of ceramics, precursors from the glass phase were used, which were obtained by melting the starting material under the influence of radiant flux (IR radiation) and quenching the melt in a facility rotating at a speed of 3000 rpm. Platinum wire was used as a substrate. During the heat treatment of samples in the temperature range of 845–850 °C and a holding time of 72 hours (with intermediate grinding every 24 hours), the superconducting high-temperaturephase Bi-2223 crystallized in the studied samples. Critical temperatures and resistances of superconducting samples were measured by the four-probe method by measuring the dependence of resistance on the temperature in the range from 300 K to 60 K.
Thermodynamic properties of titanium-manganite LaСаTiMnO6
Authors: Kasenov B.K. , Kasenova Sh.B. , Sagintayeva Zh.I. , Baisanov C.O. , Lu N.Yu. , Bekturganov Zh.S. , Zeinidenov A.K. , Kuanyshbekov E.E.
Published: October 2023

By the method of dynamic calorimetry in the range of 298.15-673 K, the heat capacity of titanium-manganite LaСаTiMnO6, obtained by solid-phase interaction at 800-1200oC from lanthanum, titanium (II), manganese (III) and calcium carbonate oxides was studied. On the dependence curve Ср°~¦(T) in the specified temperature range, a λ-shaped effect was detected at 598 K, probably related to the phase transition of the second kind. A fundamental constant is determined — the standard heat capacity of LaСаTiMnO6, equal to 221±14 J /(mol×K). Its standard entropy, equal to 206±6 J/(mol×K), was estimated by the approximate method of ion increments. Based on experimental data, taking into account the temperature of the phase transition, the equations describing the temperature dependences of Ср°~¦(T) and the thermodynamic functions So (T), Ho (T) — Ho (298.15) and Фхх(Т) of the investigated titanium-manganite lanthanum and calcium are calculated. The standard heat capacity of LaСаTiMnO6 is also calculated using the Debye method, the value of which is in good agreement with experimental data. According to the developed methodology, the standard enthalpy of titanium-manganite formation was calculated, equal to — 3867.5 kJ/mol.
Features of hole transport and density of localized states in CuCr1-xMgxO2 and CuCr1–yMgyO2/(MgCr2O4)x–y polycrystalline ceramics
Authors: Kytin V.G. , Kupriyanov E.E. , Apreleva A. , Kulbachinskii V.A. , Korsakov I.E. , Kiseleva T.Yu. , Ismailov Zh.T.
Published: October 2023

Magnesium doped polycrystalline ceramic samples of cooper chromite (I) with 0.6-4.0 at % Mg content have been synthesized. Phase composition of ceramics has been investigated by X-ray diffraction. Temperature dependencies of electrical resistivity and Seebeck coefficient have been measured by four probe method and analyzed in frame of variable range hopping conductivity. The density of localized electronic states and characteristic energy of its variation near Fermi energy have been estimated. It was obtained that the density of localized states at Fermi energy increases with an increase of Mg content, while characteristic energy of variation of localized state density near Fermi energy decreases. Obtained results show that relatively large values of Seebeck coefficient in Mg doped copper chromite (I) can be understood within variable range hopping transport of holes with rapidly increasing density toward valence band maximum.
Unveiling the Potential of MnxCo3–xS4 Electrocatalyst in Triiodide Reduction for Dye-sensitized Solar Cells
Authors: Suleimenova D. , Tashenov Ye. , Balanay Mannix P. , Baptayev B.
Published: October 2023

The development of a low-cost and high-efficiency Pt-free counter electrode is an important goal to improve the performance of dye-sensitized solar cells. In this study, we successfully synthesized a MnxCo3-xS4-based counter electrode by a facile solvothermal synthesis technique. The electrocatalyst was directly deposited on a fluorine doped titanium oxide (FTO) coated glass substrate. Various characterization techniques such as Xray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy were employed to analyze the obtained MnxCo3-xS4 counter electrode material. The photovoltaic measurements performed on the dye-sensitized solar cells showed a remarkable improvement in energy conversion efficiency with the MnxCo3-xS4 counter electrode (8.60 %) compared to the conventional Pt (8.11 %). Moreover, the MnxCo3-xS4counter electrode exhibited excellent stability, further highlighting its potential as an efficient and durable alternative to Pt in dye-sensitized solar cells. Overall, our results contribute to the further development of Pt-free counter electrode materials for sustainable solar energy applications.