bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of approaches and synthesis of iminodisuccinic acid – precursor of chelate fertilizers for application in agricultural industries
Authors: Klimaeva Ludmila , Tankova Anastasia V. , Dolganov Alexandr V. , Nikolsky Alexandr N. , Bochkarev Dmitry V.
Published: December 2024

The article presented a method for producing iminodisuccinic acid with high yield from simple and accessi- ble Russian reagents - ammonia and maleic anhydride. In addition, a chelate complex of zinc and imino- disuccinic acid was synthesized, which plays a key role in metabolic processes in the body, as well as being necessary for the proper growth and development of living organisms. The results of the work can be widely used for the needs of regional enterprises, in particular as a substitute for imported fertilizers and additives used in the agricultural sector.
Monitoring of the state of tourist routes of the "Olen'i ruch'i" Nature Park
Authors:   Lomonosov Moscow State University, Chizhova Vera P. , Ivanov Andrey N. ,   Lomonosov Moscow State University, Kanaev Kirill S. ,   Lomonosov Moscow State University, Sorokina Elena G. ,   «Olen'i ruch'i» Nature Park
Published: December 2024

The article discusses the issues related to the monitoring of tourist routes and their problem areas in nature parks, using the "Olen'i ruch'i" [Deer Creek] Nature Park located in the Middle Urals as a case study. Based on a methodology for organizing a system of integrated recreational monitoring of protected areas, the main components of the monitoring program for the Nature Park were developed, including observation sites, observable parameters, and the frequency of observations. The authors identified weaknesses in the tourist routes and provided recommendations for reducing recreational load to each route. It was revealed that the gravel filling of the trail beds significantly increased their resistance to recreational load.
Technogenesis influence on a geochemical features of soils: review of modern concepts
Authors:   Perm State University, Dziuba Ekaterina A.
Published: December 2024

The article presents a scientific review of modern ideas about geochemical research in Russia and the world. The known data on the influence of technogenesis on geochemical features of soils are presented separately. The main theoretical ideas in the field of geochemical studies of territories are presented with mentioning V.I. Vernadsky, V.M. Goldschmidt, A.E. Fersman, A.A. Saukov, F.W. Clark, A. Kabaty-Pendias, A.I. Perelman, A.P. Vinogradov, M.A. Glazovskaya, N.S. Kasimov, B.B. Polynov, A.B. Ronov, Y.E. Saet. The main classifications of macro- and microelements, which are used in geochemistry, are described. The data on the general influence of technogenesis on the distribution of chemical elements in the environment are analysed. The influence of oil pollution on the distribution of chemical elements in soils; the influence of potassium salt mining; the influence of coal mining and liquidation of coal mines is analysed separately. The data on characteristic chemical elements, which accumulate in soils in zones of influence of oil extraction, potash deposits and coal mining, are given. Approaches to ecological and geochemical zoning of territories are described and a review of geochemical studies in Perm Krai is given.
Analysis of Spatial Variability of Soil Properties in the Computation of Slope Stability of Bulk Massifs
Authors:   Moscow State University of Civil Engineering, Koloshein V. B.
Published: December 2024

The stability of the slope of a bulk soil massif located in Moscow was evaluated. The stability was evaluated using the random finite element method (RFEM) with the Optum 2G. The results of the standard penetration test (CPT) were used to calculate physical and mechanical properties, correlation lengths and coefficient of variation of soil massifs. The results of investigation revealed that the massif is stable. The performed calculations demonstrate the possibility of using a CPT data to assess the variability of technogenic soil properties in the massif with the subsequent assessment of slope stability.
High-precision representations of inertial rotations and Louis Poinsot instability
Authors:   Tomsk State University, Bubenchikov Mikhail A. , Bubenchikov Alexey M. ,   Tomsk State University, Mamontov Dmitriy V. ,   Tomsk State University
Published: December 2024

The coordinate method for determining the rotations of bodies in space is proposed. The method does not use Euler angles and hypercomplex Hamilton numbers. The developed computational technique is based on the point distribution of masses in space. If the body is replaced by a system of points and this approximation is sufficient, then the rest of the calculation results are highly accurate. The latter is achieved through the synthesis of an exact method for solving systems of algebraic equations with a high-precision step-by-step method for solving systems of differential equations resolved with respect to the derivatives of the desired quantities. Based on the developed computational method, unstable inertial rotations were studied. The existence of an instability different from the Louis Poinsot instability is shown.
On a class of homeomorphisms of function spaces preserving the Lindelöf number of domains
Authors:   Tomsk State University, Lazarev Vadim R.
Published: December 2024

We consider the class of all homeomorphisms between the function spaces of the form Cp(X), Cp(Y) such that the images of Y and X under their dual and, respectively, inverse dual mappings consist of finitely supported functionals. We prove that if a homeomorphism belongs to this class, then Lindelof numbers l(X) and l(Y) are equal. This result generalizes the known theorem of A. Bouziad for linear homeomorphisms of function spaces.
On the effect of a rigid boundary on the supercavity profile
Authors:   Tomsk State University, Ishchenko Aleksandr N. , Biryukov Il’ya M. ,   Tomsk State University, Burkin Viktor V. ,   Tomsk State University, D’yachkovskiy Aleksey S. ,   Tomsk State University, Sammel Anton Yu. ,   Tomsk State University, Shestopalova Alena S. ,   Tomsk State University, Chupashev Andrey V. ,   Tomsk State University
Published: December 2024

The features of cavity formation during striker motion near a rigid boundary are considered. Experimental results demonstrating cavity development in the presence of the rigid wall are presented. The time dependences of the supercavity cross-sectional diameters and the vertical displacement of the supercavity cross-sectional centers are plotted. Qualitative and quantitative analysis of the rigid boundary effect on the supercavity profile behind the striker moving in water is performed. It has been shown that the supercavity is repelled from the rigid wall during the expansion phase and it is attracted to the wall during the contraction and collapse phases. Distortion of the supercavity boundary is observed not only when the striker has overpassed the rigid wall but also when it is moving above the wall. In some cases, this may affect the striker trajectory. The obtained results can be used to verify mathematical models describing the motion of a solid body under conditions of supercavitating flow.
The Impact of Institutional Quality on Fiscal Discipline: An Analysis of OECD Countries
Authors: Çimen Gamze , Biçen Ömer Faruk
Published: December 2024

Indicators of institutional quality are based on six different indices published by the World Bank in 1996 within the framework of Universal Governance Indicators. These indicators have significant effects on many financial variables. Fiscal discipline can also be affected by indicators of institutional quality. Based on this, the study investigated the impact of "government effectiveness" on fiscal discipline in OECD countries using autoregressive panel data analysis estimation methods with 2009-2021 period data. According to the analysis results, the increase in the value of government effectiveness affects fiscal discipline negatively and significantly. This result shows that as government effectiveness increases, the share of public debt stock in gross domestic product, an indicator of fiscal discipline, will decrease. A definite conclusion could not be reached regarding the non-linear relationship between the two variables.
Dissuasão de peixes associada à dispersão de bolhas em turbina tipo
Authors: Silva Tania Machado da , Figueiredo Wllyane Silva , Santos Alexandre Silva dos , Melo Neto Miguel Vieira de , Zara Luiz Fabrício
Published: December 2024

During the maintenance procedures of generating units, the operational maneuver of shutting down the turbine causes low water flow, which may lead to the accumulation of fish inside the draft tube. Considering the principles of ichthyofauna protection, several repulsion systems have been developed to minimize the confinement and the possible risks to the ichthyofauna. The main objective of this study was to investigate the dissuasive effectiveness on the ichthyofauna caused by the dispersion of bubbles along the draft tube during the shutdown of the generating unit. The monitoring of the ichthyofauna in the draft tube was carried out with the aid of a hydroacoustic system. The bubble dispersion procedure was executed using the compressed air injection system built into the draft tube of the Generating Units at the Jirau Hydropower Plant, on the Madeira River, in Rondônia, Brazil. 9 machine shutdowns were tracked. They were carried out in two stages; the first stage was the conventional shutdown and the second was the shutdown of the generating unit with bubble dispersion. During both stages, the movement of the confined ichthyofauna was continuously monitored by a hydroacoustic real-time monitoring system installed in the fixed-wheel gates. The results show a reduction of about 42% in the ichthyofauna movement after the bubble dispersion procedure, making it possible to infer a considerable reduction in ichthyofauna confinement in the draft tube. This observed effectiveness, in an unfavorable environment with the high turbidity of the Madeira River, shows the considerable potential of this robust and low-cost technology for the protection of ichthyofauna in the hydroelectric sector.
Simulação de pulverização ambiental: Efeitos reprodutivos do glifosato em modelo animal
Authors: Simões Jamile Silveira Tomiazzi , Bastianini Mariana Esperendi , Uzelotto Mariany Kerriany Gonçalves , Rossi Renata Calciolari , Favareto Ana Paula Alves
Published: December 2024

The aim of the present study was to evaluate the reproductive effects caused by chronic inhalational exposure to glyphosate in animals. For this, a model that simulates real environmental spraying with environmentally relevant concentrations of glyphosate was used. Wistar rats were divided into 4 groups, exposed to 0 (control group - GC), 20.69 (low concentration group - LCG), 34.63 (medium concentration group - MCG) or 51.66 ppm/day (group of high concentration - HCG). The animals were exposed for 15 minutes for 180 days. After the exposure period, the animals were euthanized and the testes and epididymis were collected for analysis of sperm counts, motility, morphology and vitality. The absolute and relative numbers of spermatozoa in the testis and epididymis and daily sperm production were reduced in all groups exposed to the herbicide, indicating an impact on spermatogenesis. Progressive motility was reduced in GAC, with a consequent increase in non-progressive motility and immobility. However, there was no delay in sperm transit time in the epididymis. Plasma membrane integrity and the percentage of morphologically normal spermatozoa were reduced in the exposed groups, with an increase in head and tail abnormalities. Exposure to glyphosate through an environmental spray simulation model affected sperm quantity and quality in an animal model. This warns of risks to male fertility, demanding strict regulation on the use of pesticides to prevent damage to reproductive health and the environment. In this way, more sustainable agricultural measures are crucial to balance production and global health.
A problemática contemporânea da Regularização Fundiária no Brasil
Authors: Seabra Jessica , Godoy Jeane Aparecida Rombi de , Macedo Taynara Barreto
Published: December 2024

The objective of this study is to analyze the informal urban nucleus Vila Gilda, located in Santos, in the state of São Paulo, by providing a brief historical overview of its formation and the experiences of land regularization in the area, highlighting their social, urban, and environmental implications. The study employs a methodology based on bibliographic review and documentary research on the Vila Gilda dike, as well as the policies and projects implemented for land regularization in the area, drawing a parallel with the national discussion on the subject, particularly focusing on theoretical frameworks within brazilian legislation concerning land regularization. The study demonstrates the importance of historical and contextual analyses related to urban policies in the country, and the results highlight the need for constant dialogue between land regularization and urban planning to avoid the perpetuation of socio-spatial inequalities. Furthermore, it emphasizes the necessity of considering the geophysical specificities that characterize areas of environmental vulnerability.
Protocolo: Extração Ácido-Base de Alcaloides v1
Authors: M. Borges Ricardo , de Souza Moreira Juliana , Pereira de Jesus Rômulo
Published: December 2024

O procedimento de extração ácido-base para alcaloides é uma técnica amplamente utilizada para o isolamento e purificação de compostos nitrogenados presentes em materiais naturais. Tradicionalmente realizado em funis de separação, este protocolo foi modificado para ser executado em tubos de centrifugação, visando maior praticidade, redução do uso de solventes e adequação a amostras de pequeno volume. Essa adaptação não apenas otimiza o tempo de trabalho, mas também torna o método mais adequado para laboratórios com infraestrutura limitada ou que lidam com amostras de escala reduzida. A metodologia preserva os princípios básicos da extração ácido-base, permitindo um isolamento eficiente dos alcaloides em diferentes matrizes.
Mechanical characterization of alumina and graphite dual particulates reinforced hybrid aluminum alloy (Al2219) matrix composites
Authors:   Department of Mechanical Engineering, New Horizon College of Engineering, Bangalore-560103, India, S ShivaPrakash , Kumar Santosh ,   Department of Industrial and Production Engineering, The National Institute of Engineering, India, K Naveen Kumar B ,   Department of Mechanical Engineering, M S Ramaiah Institute of Technology, Bengaluru, India, Nagaral Madeva ,   Aircraft Research and Design Centre, Hindustan Aeronautics Limited, Bangalore-560037, Karnataka, India, Marakal Narasimha ,   Department of Mechanical Engineering, Nitte (Deemed to be University) NMAM Institute of Technology, Nitte, Karkala, Udupi-574110, Karnataka, India, Auardi V ,   Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur-572103, India, H Manjunatha T ,   Department of Mechanical Engineering, Ballari Institute of Technology and Management, Ballari-583104, Karnataka, India, P Dileep B. ,   Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bangalore, 560035, India
Published: December 2024

The current study involved the production of hybrid composites employing a liquid metallurgical technique, combining Al2219 alloy with Al2O3 and graphite. The Al2219 alloy was employed to fabricate hybrid composites consisting of Al2O3 particles, ranging from 3 to 6 weight percent, and a constant 2 weight percent of graphite particles. The generated composites underwent microstructural investigation using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The density, hardness, ultimate strength, yield strength, and elongation were determined according to ASTM standards. The SEM revealed that both graphite and Al2O3 particles were uniformly distributed within the Al2219 alloy. The EDS revealed the presence of hybrid particles in the Al2219 alloy. The incorporation of dual particles into the matrix resulted in a decrease in the density of aluminium alloy composites. The incorporation of dual particles enhanced the hardness of Al2219 alloy by 22%, ultimate strength by 36.7%, and yield strength 38.5%. The EDS results indicated that the Al2219 alloy contains hybrid particles. The incorporation of dual particles into the matrix resulted in a decrease in the density of aluminium alloy composites. The unique fracture characteristics of the Al2219 alloy and its composites were further demonstrated through the use of tensile force micrographs.
Experimental research of quality of the adhesive repairs of composite structures using non-destructive testing
Authors:   Moscow Aviation Institute (National Research University), Moscow, Russia, Ibrishev Kirill , Prilipko Ekaterina ,   Moscow Aviation Institute (National Research University), Moscow, Russia, Soldatkin Maksim ,   Moscow Aviation Institute (National Research University), Moscow, Russia, Kononov Nikolay ,   Moscow Aviation Institute (National Research University), Moscow, Russia
Published: December 2024

The increasing use of polymer composite materials in aviation necessitates adhesive repairs of aircraft structures in situ, minimizing disassembly and manufacturer return to reduce costs and repair time. This paper discusses the required repair technologies and equipment, as well as the quality analysis and the defect assessment of these repairs through various non-destructive testing (NDT) methods. An experimental investigation was conducted on adhesive repairs of a three-layer carbon fiber panel, evaluating defects qualitatively assessing the applied technologies, and providing recommendations for NDT applicability for this type of sample. The study's analysis produced several key conclusions regarding repair zones. In Zone 1, using the vacuum method, non-adhesions and voids from resin curing were identified, detectable by all NDT methods, with staff qualifications significantly impacting repair quality. In Zone 2, also applying the vacuum method with excess pressure, minor non-adhesions, and voids (2-3 mm) were observed, which were left undetected by rapid NDT (shearography), while detailed NDT (tomography) revealed fewer defects, rating the repair as satisfactory. In Zone 3, utilizing the vacuum method at elevated temperatures, multiple local non-adhesions, and significant delamination (up to 40x40 mm) were discovered, classifying this repair as defective, confirmed by all NDT methods. Smaller defects were only detected by tomography, underscoring the importance of detailed NDT for accurately assessing repair integrity across various technologies.
Data-driven prediction of mechanical properties in friction stir processed Al6061-Alumina composite using enhanced machine learning models
Authors:   ECE Department, RIMT University, Punjab, India, Saini Satish , Kumar Neeraj ,   Dept of Information Technology, VPPCOE& VA, Sion, Mumbai, India, Chopra Ranjeev Kumar ,   School of Computing, RIMT University, Punjab, India, Mehra Monika ,   Dept of Information Technology, VPPCOE& VA, Sion, Mumbai, India, Kumar Ravi ,   ECE Department, Chandigarh University, Punjab, India, Bhardwaj Sushil ,   Department of Physics and Electronics, at Hansraj College, University of Delhi, India, Kumar Dinesh ,   Mechanical Eng. Dept., Maharishi Markandeshwar (Deemed to be University) Mullana, India
Published: December 2024

This study explores friction stir processing (FSP) of Al-6061 aluminum alloy reinforced with alumina nanoparticles, analyzing the effects of processing parameters—including transverse speed, rotational speed, and number of passes—on ultimate tensile strength, yield strength, natural frequencies, and damping ratios. Using a CNC milling machine, FSP was conducted at rotational speeds of 900, 1100, 1300, and 1500 rpm, with traverse speeds of 10, 15, and 20 mm/min. An advanced machine learning model, SRS-optimized long short-term memory (LSTME), was utilized to predict the properties of the processed material, achieving high R² values of 0.911 for ultimate strength, 0.951 for yield strength, 0.953 for natural frequency, and 0.985 for damping ratio. Key findings indicate that FSP improves damping characteristics and mechanical properties, with maximum damping effectiveness observed at 900 rpm across all passes. Alumina nanoparticles enhanced damping capabilities, while increased rotational speeds promoted grain refinement, resulting in a stronger, more deformation-resistant material. The LSTME model outperformed other machine learning approaches, reaching R² values between 0.965 and 0.993 in training and 0.911 to 0.987 in testing. These results demonstrate the efficacy of combining FSP with machine learning to optimize material properties for high-performance applications
Patterns of Social Media Choice and Use and Their Impacts on Online Political Participation in Sarawak
Authors:   Universiti Malaysia Sarawak, Akobiarek Grace Charles , Puyok Arnold ,   Universiti Malaysia Sarawak
Published: December 2024

This study investigates the patterns of social media use and choice among voters in Sarawak, Malaysia, and examines their impact on online political participation. By focusing on a geographically and culturally unique setting, the research aims to uncover the nuanced ways in which social media platforms facilitate or hinder political engagement across different age groups. Employing a survey and questionnaire research approach, the study gathers data from a diverse sample of Sarawak's electorate to analyze social media engagement trends and their implications for political discourse and participation through a survey and questionnaire research methodology. Key findings reveal a predominant preference for Facebook across all demographics, with younger voters diversifying their social media usage to include platforms like Instagram and TikTok, indicating a trend towards more visually oriented and interactive forms of political engagement. The study identifies a positive link between active engagement on social media (productive use) and the level of political participation, highlighting the significance of content creation and interaction in fostering political involvement. Moreover, differences in social media use and engagement patterns based on age groups suggest varying strategies for political communication and mobilization. The implications of this research are multifold, offering insights for political strategists, policymakers, and civic organizations on leveraging social media to enhance democratic engagement and political literacy, particularly among the youth. Additionally, the study contributes to the broader discourse on digital media and political participation, providing a foundation for future research in the context of Malaysia and beyond.
Keywords: Social media choice, social media use, Sarawak state election, online political participation, Sarawak.
Disaster Mitigation Communication Model Using Folk Media
Authors:   University of Nusa Cendana, Indonesia, Andung Petrus Ana , Messakh Jakobis Johanis ,   University of Nusa Cendana, Indonesia, Doko Meryana Micselen ,   University of Nusa Cendana, Indonesia
Published: December 2024

The southern people in Thailand are often questioned and given negative connotations by society and the government. The media also portrays stereotypical images of southerners and characterizes them as having a stagnant identity. Most of it is constructed through the eyes of an "outsider," who would present the southern community in a more negative light than a positive one. This study aims to create a participatory communication process among the target youth by establishing a prototype media kit and enhancing pride in the southern identity through participatory action research among junior high school students as active audiences and students in the change agent communicator group. The study revealed that the participatory communication process has created a communication story arising from the exchange of experiences of the target groups with regards to their pride in their southern identity. The process of collecting information on the use of words that oppress Southern localities eventually led to the setting up of an entry point as the starting point to communicate the narrative for "transforming pain points into proud points", to change negative experiences that are painful points and transform them into feelings of positive identification reinforcement and shift their mindsets from forbidding others to mock them into an immunity against mockery. It has also revealed empirical results with regards to building pride in the southern region's local identity of the target group and the ability to re-process the application of participative communication processes to building acceptance of diversity and cultural pride.
Keywords: Local identity, proud identity, media prototype, participatory communication, Southern Thai youth.
The 2022 Russia-Ukraine Conflict: Multimodal Framing Analysis of Chinese Mainstream Media Coverage on Douyin
Authors:   Universiti Kebangsaan Malaysia, Wang Yao , Sannusi Shahrul Nazmi ,   Universiti Kebangsaan Malaysia
Published: December 2024

The mainstream media plays an essential role in the modern war in selecting the facts and making them salient. Prior research has concentrated on framing diverse wars from multiple perspectives, either verbal-only, visual-only or both. However, as the Russian and Ukrainian war constantly escalates, the multimodal framing of Chinese media video coverage on social media platforms (Douyin) has yet to be explored systematically and comprehensively. Therefore, the main objective of this study is to analyse how Chinese mainstream media apply multimodal frames (verbal, visual and aural) to construct their tendencies regarding the 2022 Russian and Ukrainian conflict on social media (Douyin). Based on multimodal framing analysis, the findings revealed that Chinese mainstream media on Douyin preferred the verbal frames of the military conflict and human interest, the visual frames of officials, combat and war machines, and the “stirring/tense” aural frame. Meanwhile, they had a neutral position and a pro-Russia slant. These multimodal framing strategies presented distinct relationships with slants. Specifically, only one morality verbal frame statistically correlates with particular slants. Surprisingly, no visual frames have a correlation with different news slants and all the aural frames are observed to have a statistical correlation with distinct slants. This study offers a multimodal perspective to framing analysis in international war reporting in the Chinese context. In practice, it might also offer valuable insights for mainstream media to enhance their narrative strategies when covering war videos on social media platforms.
Keywords: Framing, multimodal framing analysis, the Russian-Ukrainian conflict, Chinese mainstream media, Douyin.
Romantic Disillusionment and Environmental Catastrophe in Nigerian Petrocinema Film - Blood Vessel
Authors:   Universiti Kebangsaan Malaysia, Badru Abdulhamid , Aziz Jamaluddin ,   Universiti Kebangsaan Malaysia
Published: December 2024

Cinema, particularly petrocinema, has explored the socio-political and environmental consequences of oil extraction globally. The representation of oil and its socio-political impacts have not been sufficiently analysed, particularly within Nigerian cinema. The problem lies in the lack of critical analysis of how Nigerian films anthropomorphically depict petro-narratives, reflecting corporate influence and exposing the environmental and social injustices tied to oil exploitation. The study aims to investigate how Nigerian petrocinema functions as both a medium that conceals and challenges hegemonic power structures linked to oil extraction, with a particular focus on the intersection of oil, politics, and environmental degradation. Drawing on Ivakhiv's concept of anthropomorphism, this study textually analyses the postcolonial film Blood Vessel (Inwang, 2023) to uncover the environmental subjective ideological and symbolic meanings. Our findings reveal that Nigerian petrocinema critiques the marginalisation of local communities exposing the liminality space between tradition and modernity, highlighting the profound cultural and spiritual connections these populations maintain with their environment. The film exposes the environmental degradation caused by multinational corporations and government neglect, while emphasising community resilience and resistance. This finding demonstrates that Nigerian petrocinema uses anthropomorphism to humanise environmental issues, fostering a deeper understanding of the cultural and ecological impacts of oil exploitation. By challenging dominant narratives, the film advocate for environmental justice and the preservation of cultural identity and traditional ecological knowledge. This study contributes to broader discussions of petrocinema as a tool for cultural resistance and advocacy, providing insights into the complex interplay between petro, power, and identity in postcolonial societies.
Keywords: Nigerian cinema, ecocinema, postcolonialism, petroculture, anthropomorphy.
Optimization of Switchable Hydrophilicity Solvent-Based Liquid-Liquid Microextraction for Tartrazine Dye Separation and Preconcentration using Central Composite Design and Response Surface Methodology
Authors:   Department of Chemistry, College of Sciences, University of Al-Qadisiyah, Dewanyia-58002, Iraq, Tariq Zianab , Alwan Nawras A. ,   Department of Chemistry, College of Sciences, University of Al-Qadisiyah, Dewanyia-58002, Iraq
Published: December 2024

Switchable hydrophilicity solvent liquid-liquid microextraction (SHS-LLME) was employed as a sample pretreatment method to enrich and pre-concentrate the dye Tartrazine (Tz) before its quantification using UV-visible spectrophotometry. N-methyl dipropyl amine (MDPA) was used as the extraction solvent. The key parameters of the SHS-LLME process were optimized using central composite design (CCD) and response surface methodology (RSM) to evaluate the interactive effects of the three most critical operational variables. The interactions between the MDPA, HCl, and NaOH volume on dye absorption were studied. The LOD and LOQ (n = 7) were calculated as 0.23 μg/mL and 0.692 μg/mL, respectively. The method showed a relative standard deviation (RSD) of 1.71% for 10 replicate measurements. Enrichment and preconcentration factors were determined to be 63 and 33.33, respectively, demonstrating the method’s effectiveness in enhancing Tartrazine detection.
Understanding Educators’ Hesitation to Adopt Tailored Digital Gamification
Authors: Duong H.L. , Vo T.K.
Published: December 2024

Tailored digital gamification holds significant promise for enhancing student engagement and learning outcomes. However, its adoption by Vietnamese lecturers remains limited. This qualitative study investigates the reasons behind their reluctance to embrace tailored digital gamification and explores the role of cultural factors. Interviews were conducted with lecturers from six universities in Vietnam. Findings reveal a preference for traditional teaching methods due to their familiarity and perceived effectiveness. Barriers to adoption include perceived complexity, lack of training, and concerns about content development. Additionally, cultural factors such as hierarchy-authority, gaming perception, and collectivism were found to significantly influence lecturers' attitudes towards gamification. This research provides crucial insights into the complex challenges and factors hindering digital gamification adoption in Vietnamese universities, informing the targeted interventions to facilitate the successful integration of digital gamification into the Vietnamese landscape.
Motivation for the Admission of Orphans of Employable Categories in the Context of Various Forms of Family Structure
Authors: Oslon V.N. , Odintsova M.A. , Semya G.V. , Kolesnikova U.V.
Published: December 2024

The results of a study examining the motivations behind the admission of children without parental care (N=7,150 potential and actual substitute parents) from challenging categories—such as siblings, adolescents, children with disabilities, and those with high individual needs—into various forms of family arrangements (adoption, foster care, and guardianship) are presented. This research employs a resource-based approach, which views motivation as a resource for fulfilling personal and family needs. The findings indicate that the majority of informants are reluctant to accept children from these challenging categories, primarily due to associated difficulties (such as character traits, learning issues, and health problems) and fears (including concerns about heredity, developmental disorders, and doubts regarding their own competence). Adoptive parents tend to exhibit a higher level of sufficient resource motivation, while guardians and foster parents are often more focused on addressing family crises and financial challenges. The most motivated candidates are typically from intact families, where both spouses formalize their commitment to parenthood. Training in the Supportive Parenting Resource (SPR) program enhances parents' sufficient resource motivation while simultaneously reducing insufficient motivation, although it may increase levels of fears and concerns. After completing the program, candidates are more likely to transition to paid forms of guardianship.
Characteristics of Unfamiliar People Personality in the Assessments of Observers with Different Teaching Experience
Authors: Korolkova O.A. , Khoze E.G. , Lupenko E.A.
Published: December 2024

The study analyzes the professional ability of teachers to accurately perceive and evaluate the student’s personalities. Teachers with varying levels of professional experience (1–4 years and 5 years and above) as well as individuals without teaching experience were recruited for this study. Video recordings of the behavior of six posers (three women and three men) during an interview were used as stimuli. From the video recordings, fragments lasting 1 minute were extracted, containing the poser’s speech and their responses to the interviewer's questions. The audio track in the video clips was removed. Participants, both with and without pedagogical experience, evaluated the posers using a specially designed semantic differential that included 25 scales. These scales describe various aspects of personality as self-regulation, organizational and communication skills, empathy, and more. Prior to this evaluation, participants had been assessed using the same semantic differential scales. Subsequently, they were asked to rate, on a ten-point scale, the success of their current or potential professional activity as a teacher in high school, college, and university. The forecast of potential teaching activities was also conducted in relation to the posers being assessed. The results of the study in all groups showed that the mean scores on the scales did not differ significantly. The method of semantic universals made it possible to identify the characteristics of each of the posers. The sets of semantic universals varied, but participants with different professional backgrounds highlighted different sets of characteristics. However, a number of characteristics were consistently emphasized in all groups. A similar factor structure was obtained, containing four common factors: factor 1 “responsiveness”, factor 2 “discipline”, factor 3 “activity” and factor 4 “stress resistance”, i.e. we can say that the perception of an unfamiliar poser by all individuals is based on the same latent variables. However, factor 4 “stress resistance” has the greatest weight in the group of teachers with extensive teaching experience (5 years and more).
Additional Education of Children – the Example of the Republic of Kazakhstan
Authors: Abdullakhanov A.K.
Published: December 2024

This article discusses the possibilities of additional education for children in Kazakhstan to fully realize their potential. The work reflects the advantages and effects of additional education for children in the individualization of the educational trajectory. Methods for optimizing additional education for children are considered and proposed, which will allow for a greater development of abilities, the development of giftedness and talents of the younger generation, which actualizes further, more in-depth study of the issues of optimal organization of additional education for children.
The Relationship of Addictive Attitudes, Propensity to Search for Thrills and Psychological Defenses of Personality in Drug-addicted Convicts
Authors: Ganishina I.S. , Maryin M.I. , Azhimov V.V.
Published: December 2024

The relevance of the chosen topic is due to the importance of studying addictive attitudes, a tendency to search for thrills and psychological defenses of personality in drug-addicted convicts, which are taken into account when compiling psychological characteristics in places of deprivation of liberty, and, further, are evaluated in dynamics when serving a criminal sentence by convicts. The empirical study was conducted on the basis of the FKU IK-1 of the Federal Penitentiary Service of Russia for the Udmurt Republic. 114 convicts with drug addiction and 108 convicts without drug addiction took part in it. The revealed differences characterize the sample of drug-addicted convicts as persons who still have a high need and willingness to use narcotic substances, even in conditions of serving a criminal sentence. Significant interrelations between additive attitudes, thrill seeking and psychological defenses indicate the existing risk of destructive behavior of convicts. The study of the stated indicators will allow penitentiary psychologists to make an adequate forecast of the behavior of drug-addicted convicts in a correctional institution.The prospects of the problem under study are the development of a psychocorrection program taking into account the identified indicators and its use in the professional activities of penitentiary psychologists.
The Investigation of Military Suicides in the 1930—1950 s.
Authors: Shkarevsky D.N.
Published: December 2024

In the current conditions of aggravation of international conflicts, the study of the problems of suicidal behavior of military personnel is becoming more and more relevant. It is necessary to take into account the available historical experience in this matter. To date, there are no comprehensive studies on this topic. The purpose of the article is to identify the characteristic features of the investigation of suicide cases of servicemen in the 1930s - 1950s. The source base of the study was the unpublished documents of central and regional archives. The author relied on the interdisciplinary methodological approach developed in the works of P. Solomon. The article formulates the following conclusions. The Soviet criminal law provided responsibility for bringing to suicide or assisting suicide and attempted suicide. This norm was not a serious deterrent to suicidal behavior. In the 1930s-1950s there was some improvement in the formal indicators of investigations in these cases. Their quality remained at about the same level, which was evaluated low by higher authorities. The main reasons for this were the lack of incentives for military investigators and the lack of a judicial perspective on these cases.
Foreign Studies of the Neuropsychological and Biological Bases of Aggressive Behavior
Authors: Shipkova K.M. , Shport S.V. , Bulygina V.G.
Published: December 2024

The paper analyzes the data of empirical studies on the relationship between the evolution and involution of aggressive behaviour and the level of neurocognitive functioning. The specificity of the neuropsychological picture of regulatory dysfunction in individuals prone to reactive and proactive aggression is discussed. The article raises the question of the role of memory disorders in the evolution of aggressive behaviour. The paper presents constellations of cognitive, behavioural and neurodynamic deficits in individuals vulnerable to different types of aggression. The review shows that the significance of the research results in understanding the structural components of executive functions is substantiated. The paper describes the biological basis of aggressive behaviour and the influence of an aggressive environment on the occurrence of aggressive behaviour. The article indicates prospects of studying the interaction between the factors affecting the prodrome of aggressive behaviour and types of neuropsychological syndromes of executive functions impairment.
Modified Ridge Estimator for Poisson Regression
Authors: Ibrahim Shuaib Mursal , Karakoca Aydın
Published: December 2024

Poisson regression is a statistical model used to model the relationship between a count-valued-dependent variable and one or more independent variables. A frequently encountered problem when modeling such relationships is multicollinearity, which occurs when the independent variables are highly correlated with each other. Multicollinearity can affect the maximum likelihood (ML) estimates of unknown model parameters, making them unstable and inaccurate. In this study, we propose a modified ridge parameter estimator to combat multicollinearity in Poisson regression. We conducted extensive simulations to evaluate the performance of our proposed estimator using the mean squared error (MSE). We also apply our estimator to real data. The results show that our proposed estimator outperforms the ML estimator in both simulations and real data applications.
Monte Carlo Simulation Forecasting the Prices of Selected Stocks in the Automotive Sector
Authors: Çadırcı Mehmet Sıddık
Published: December 2024

Investors are exposed to risk and uncertainty because of changes in financial markets’ prices. Investors perceive the risks associated with changes in the market prices as higher due to inaccuracy in predicting future returns because of fluctuations in prices. For this reason, they adopt different risk management methods that reduce or eliminate these risks. This research relies on Monte Carlo Simulation technique in predicting forthcoming yield rates from three companies operating under Turkish automotive segment namely, Dogus Automotive (DOAS), Tofas (TOASO) and Ford Otosan (FROTO). The simulation, which runs from January 1, 2023, to December 31, 2023, gives investors research-based insights that help them make strategic investment choices in times of high volatility in the market. According to the results, by modeling prospective future scenarios, MCS can be employed as a viable means of predicting stock prices in financial markets which subsequently helps people make rational investments thereby securing profitable ventures. Furthermore, this study offers practical suggestions in the form of MCS-generated volatility ranges. Investors can determine when it is advisable to buy or sell stocks in order to reduce potential losses and increase profits by setting realistic price objectives and allocating the portfolio differently in accordance with these calls.
International Legal Problems of the Climate Change Effects on the Environment (on the Examples of Biological Diversity Degradation and Chemicals and Waste Management)
Authors: Solntsev A. M. , Otrashevskaya A. M. , Yusifova P. N.
Published: December 2024

Climate change is an existential threat to humanity: scientific data shows that every year the average temperature on Earth is getting higher and higher. Within the framework of international law, a set of measures is being taken to mitigate and adapt to the effects of climate change. Given the comprehensive nature of climate change impacts on the environment, detailed legal measures are required in various areas of international cooperation. In this study the authors examined the complexities of legal regulation in two areas of climate change impacts: management of chemicals and waste, as well as preservation of biological diversity and genetic resources. The conducted study identified achievements and problems of international legal regulation in these areas and also showed that for the purposes of synergy of international treaties in the studied areas various decisions are made at periodic conferences of the parties to these international treaties.
The calculation of fluid leaks in the peristaltic hydraulic machine
Authors: Cherkasskikh Sergey Nikolaevich , Fedenkov Vladimir Vasilyevich
Published: December 2024

BACKGROUND: In the peristaltic pumps a significant gap can remain in the compressed working body, and therefore volumetric losses may significantly influence on the actual flow rate of the pump. The gap’s shape is determined by approximate dependencies or by numerical methods, but both of these approaches have their own drawbacks.
AIMS: Using both theoretical dependencies and numerical methods, to determine parameters of the gap in the compressed pump’s hose and to calculate fluid leaks in the pump.
MATERIALS AND METHODS: The object of this study is a peristaltic pump that uses a hose compressed by two rollers. The theoretical flow rate was determined according to the existing theory of positive displacement hydraulic machines, through the rotor speed and the volume of the working chambers. It was assumed that the hose in the pump body has the shape of a torus, and the SolidWorks Simulation software product was used to determine the shape of the gap in the compression region and the amount by which the volume inside the hose decreases due to compression by the roller. The resulting geometry of the deformed hose was transferred to the STAR-CCM+ computational fluid dynamics program, where the velocity field in the gap and the dependence of the gap resistance coefficient on the Reynolds number were obtained. For the final determination of leaks in the gap, the Weisbach formula for local losses in the gap and the Darcy-Weisbach formula for friction losses along the length of the pump hose were used. The Darcy coefficient was calculated assuming that the flow in the pump hose is laminar.
RESULTS: Comparison of calculation results with experimental dependencies showed that the proposed leaks calculation method in the pump can be used at laminar flow and rotation speeds of the pump rotor not less than 100 min-1.
CONCLUSIONS: The usage of theoretical dependencies and numerical methods to determine the gap’s parameters and to calculate leaks in the pump has shown its effectiveness, but for more accurate results, it is necessary to take into account additional factors due to the fact that the flow in the pump is non-stationary.
The diagonal tensile strength of corner joints constructed with different connectors
Authors: Karatay Halil , Akbaş Merve Fatma , Uysal Mesut
Published: December 2024

This study aimed to investigate the strength and stiffness of corner joints for case furniture in the diagonal tension test. For this purpose, joint members were constructed with medium-density fiberboard (MDF) and particleboard (PB) with minifix, butterfly, and trapeze connectors. The study also observed the role of the end distance of the connectors, which was found to be a factor in joint strength and stiffness. According to the results, joints made of MDF performed 16 to 92 % better compared to PB, considering connectors on joints, which was evident due to material properties that MDF were denser by 7.5% and more strengthfull by 177% than PB. The butterfly connectors had the highest strength and stiffness regardless of material type and end distance, followed by trapeze connectors. The joints with minifix connectors had strength and stiffness of 2-3 times lower than others. Moreover, the end distance of 75 mm provided slightly higher joint strength and stiffness compared to those of 50 mm but was not statistically significant. Consequently, butterfly connectors demonstrated markedly the highest strength and stiffness for corner joints of case furniture. Furniture made of MDF should be chosen for higher durability rather than PB.