bluuebunny/crossref_metadata_2025 huggingface dataset:
A Research on Street Design from Public Landscapes; Van (Turkiye) Winter City Example
Authors: Yılmaz Betül , Aşur Feran
Published: December 2024

The aim of this study is to reveal whether the relationship between the city and climate can be directed with a landscape design approach in order to make the use of public open spaces streets attractive and lively in winter months in the winter city example of Van (Turkey). In this context, Cumhuriyet Street and Maraş Street, which are the busiest and oldest streets of the winter city of Van/Turkey, were determined as the study area. In the method, questions of 17 sub-criteria within the scope of 4 main criteria, which are imageability, visual scale, ephemera and complexity, which are effective in urban design, were directed to experts with a survey study. According to the analysis result, “Imageability” and “Complexity” criteria were significantly perceived as” unfavorable” for Cumhuriyet Street. However, “Visual Scale” criterion was also significantly perceived as “unfavorable” for Maraş Street, apart from “Imageability” and “Complexity” criteria. However, in terms of “Ephemera” criterion, the expert’s opinion emerged that it was at “Medium” level for both streets. In line with the evaluations made, landscape design proposals were developed by selecting 7 featured areas for the landscape design proposal projects of Cumhuriyet and Maraş Streets, aiming to improve the public landscape in a climate-based, functional and aesthetically compatible way with the winter city in order to increase the quality of urban life.
Perception in Human Psychology and Landscape Prioritised Visualisation of Space with Artificial Intelligence
Authors: Sağlık Alper , Minkara Emine Berfin
Published: December 2024

Psychology examines individuals’ behaviors, investigating the underlying motivations and their individual and social orientations. Individuals exhibit specific behaviors to adapt to social life. Landscape spaces, integral components of society, provide social environments. Individuals in these spaces perceive and interact with both others and objects. This study explores perceptual errors and processes, which are key topics in psychology. Concepts were translated into concrete space designs. These concepts were classified and integrated with spatial elements to create cohesive designs. During classification, combinations were identified to visualize the concepts. Space designs were generated using descriptive sentences with AI support. These designs were evaluated for psychological errors and processes. Suitable designs were illustrated with reference lines. The study also assessed the effectiveness of AI on visuals, achieving innovative designs through precise concept definitions with AI assistance.
Sürdürülebilirliğin Satın Alma Niyeti Üzerine Bibliyometrik Bir Analiz
Authors: Yörükoğlu Fatih
Published: December 2024

Bu çalışma, özellikle Pazarlama 4.0'ın yükselişinden bu yana dijital pazarlamanın benimsenmesinin, işletmeleri Y ve Z kuşağının taleplerine yanıt olarak sürdürülebilirlik ve sürdürülebilir pazarlama kavramlarına öncelik vermeye nasıl yönlendirdiğini araştırmayı amaçlamaktadır. Bunu başarmak için, 2007 ile Haziran 2024 arasında Web of Science'ta (WoS) SSCI, SCI-Expanded ve ESCI kategorilerinde indekslenen 671 makale üzerinde bibliyometrik bir analiz yapılmıştır. Analizde R Studio yazılımı kullanılmış ve sonuçlar bibliyometrik ağlar, bağlantılar ve tablolar aracılığıyla görselleştirilmiştir. Bulgular, sürdürülebilirliğin satın alma niyetleri üzerindeki etkisine ilişkin araştırmaların ağırlıklı olarak sosyal bilimlerde, özellikle de sürdürülebilir pazarlama ve tüketici davranışlarıyla ilgili çalışmalarda yoğunlaştığını ortaya koymaktadır. Literatürün önemli bir kısmı sürdürülebilirliğin tüketici satın alma kararlarını nasıl etkileyebileceğine odaklanmaktadır. Sonuç olarak bu çalışma, sürdürülebilirlik ve tüketici tercihlerindeki temel eğilimleri ve ortaya çıkan temaları belirleyerek özellikle finans, ekonomi ve pazarlama alanlarındaki araştırmacılar için değerli bilgiler sunmaktadır. Ayrıca, modern tüketicilerin değişen taleplerini karşılamak için sürdürülebilir uygulamaları pazarlama stratejilerine entegre etmenin önemini vurgulamakta ve bu alanda gelecekte yapılacak araştırmalar için bir çerçeve sunmaktadır.
Analyzing the effectiveness of non-remote monitoring telemedicine within the United States after 2019, including future implications as a healthcare medium, regarding its statistical and analytical disciplines: A systematic review
Authors: Josh T. Chandra  , Abdoul L. Mbaye  , Gokgol Merve
Published: December 2024

Telemedicine is the utilization of healthcare services remotely via numerous applications that connect the patient with a qualified physician. Telemedicine plays a vital role in providing accessible healthcare to individuals who are unable to do an in-person visit, and its involvement in healthcare is analyzed through the analytical/statistical lens, financial lens, and ethical lens. Telemedicine systems have demonstrated their potential to serve as a functional healthcare medium, but many barriers to an increase in its implementation and efficacy still exist after the Coronavirus Disease 2019 pandemic. Despite the importance of telemedicine, knowledge of its implied efficacy and efficiency in providing healthcare is poor, and already existing research doesn’t address solutions to the barriers of telemedicine. The research aims to address this gap by doing a comprehensive, systematic literature review on the efficacy, barriers to implementation, practicality, and future implications of telemedicine’s utilization in the healthcare sphere. Furthermore, by adding a unique perspective on this topic and consolidating research data for the general healthcare field to utilize, this further addresses missing medical knowledge regarding telemedicine consultations. This research screened 737 different articles and papers to gather information regarding telemedicine and its efficacy. Results were filtered and screened using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method to maintain a standard of high-quality, impartial, and accurate data throughout the research paper. Only the sources which pertained to the research question were chosen to be included in the paper. Trends were identified in the chosen articles, which were viewed by the contributors and referenced in the paper. Telemedicine has demonstrated profound evidence of benefits for both patients and healthcare administrations. However, concerns regarding its accessibility and efficacy remain. Suggestions are made for medical administrations and for public knowledge to provide solutions for these concerns.
Use of complex columns with side section and side withdrawal in extractive distillation of methyl acetate—chloroform mixtures of various composition
Authors:   Federal State Budget Educational Institution of Higher Education «MIREA – Russian Technological University», Ramochnikov D. A. , Anokhina E. A. ,   Federal State Budget Educational Institution of Higher Education «MIREA – Russian Technological University», Saunina A. V. ,   Federal State Budget Educational Institution of Higher Education «MIREA – Russian Technological University», Timoshenko A. V. ,   Federal State Budget Educational Institution of Higher Education «MIREA – Russian Technological University»
Published: December 2024

The efficiency of using complex columns with a side section and side withdrawal in the extractive distillation of a methyl acetate—chloroform mixture of three different compositions has been studied. The optimal parameters of the traditional two-column scheme of extractive distillation, a complex column with a side refining section and an extractive distillation scheme, including a column with side withdrawal, were determined in terms of the criterion of total energy consumption in the column boilers. It was established that the energy efficiency of columns with a side section and side withdrawal did not depend much on the composition of the separated mixture. Both technological solutions provide almost the same reduction in energy consumption in the column boilers as compared to the traditional scheme (~by 30%), but the number of trays in a complex column with a side section is 1.3 times less than in a scheme including a column with side withdrawal. With an equal number of trays in the columns in all schemes, the energy savings in the column with side withdrawal are lower and only 10—13%.
Recursive introversion, iterative extroversion and transitive ambiversion
Authors: Knar Eldar
Published: December 2024

This study proposes an approach to describing personality dynamics through mathematical modelling of introversion, extroversion, and ambiversion processes. Introversion is interpreted as a recursive process characterized by deep self-awareness and inner reflection; extroversion is presented as an iterative process of accumulating and processing external stimuli; and ambiversion is considered transitivity, integrating the interaction of these two opposing processes. The developed model is based on principles of complex systems theory, nonlinear dynamics, and synergetics, enabling the perception of personality as an adaptive and multilayered system.The results include analytical equations describing the interaction of internal and external factors. Parameters regulating personality dynamics, such as sensitivity coefficients, weighting factors of stimuli, and synergy parameters, are also explored.The practical significance of the proposed model lies in its application in psychotherapy, education, personnel management, and other areas where it is necessary to consider personality traits and their dynamics. The model provides new opportunities for diagnosing, forecasting, and correcting personality changes, enhancing methods of working with individuals.The findings open some prospects for quantitative personality analysis, providing a theoretical understanding of its structure and dynamics. They also create a foundation for further interdisciplinary research in psychology, the cognitive sciences, and social systems.Specifically, the formalization considered in the context of program algorithms allows for the creation of functional procedures for AI and robots with differentiated psychological archetypes (introvert robots, extrovert robots, and ambivert robots).
Neighbourhood characteristics affect environmental literacy in urban youth
Authors: Harris Nyeema C , Gonzalez Germar , Vrla Stephen
Published: December 2024

Urban youth are exposed to a myriad of conditions that influence environmental literacy in their informal learning settings. Here, we investigated how place dependency, place identity, research competencies, empathy for wildlife, ecological knowledge – all components of environmental literacy using stepwise regression were influenced by social and environmental neighbourhood characteristics in youth residing in the Detroit metropolitan area. While distance to park, road density, and impervious surface affected environmental literacy, social variables such as education attainment and housing burden were most important. Because environmental literacy is crucial to growing advocacy and promoting pro-environmental behaviour understanding drivers that influence attitudes towards nature has ramifications for securing both an inclusive STEM workforce and sustainable future.
Development of Life Cycle Cost Strategy and Protocol on Cost Data Input in Malaysia
Authors: Mohd Fairullazi Ayob
Published: December 2024

Life Cycle Cost (LCC) is an economic assessment technique that produces outputs, which will give useful cost information to the clients, cost estimators and researchers in facilitating them to make better decision in the process of determining the most optimum total ownership costs of an asset over an anticipated life or in comparing the most cost-effective of mutually exclusive alternatives. The availability, accessibility, currency and reliability of cost data used as inputs in LCC analysis is of paramount importance that should be emphasized in the estimation to produce reliable LCC outputs. The aim of this research is to enhance quality of LCC outputs through the enhancement of quality data input requirements.
أهمية منظور السننية الشاملة عند الطيب برغوث في تحقيق التكامل المعرفي بين السنن المقاصدية الكلية الشاملة والسنن الجزئية المتنافرة
Authors: قاسمي عمار
Published: December 2024

ملخص
يهدف البحث إلى الكشف عن سبل التكامل بين السنن المقاصدية الكلية الشاملة، والسنن الجزئية المتنافرة، لتحقيق نهضة حضارية متوازنة، وذلك بتبني منهجية علمية استقرائية، تنطلق من جمع الجزئيات لبلوغ القوانين الكلية، وباستخدام آليات منطقية تساعد في ضبط المفاهيم وتحديد التعريفات حتى تتضح مسارات البحث ومآلاته. وقد توصل من خلال ذلك إلى نتائج كشف فيها عن سبب توقف الاستمداد من الخط المعرفي والمنهجي للتجربة النبوية عند النخبة الحاكمة التي تولت زمام السلطة بعد نهاية الخلافة الراشدة، ولجأت إلى الاستمداد من الناتج المعرفي للحضارات المتاخمة، الهندية والفارسية شرقا واليونانية الرومانية غربا، فتجلت له أسباب  انحراف مسار الأمة عن المنهجية العلمية السننية التي أرسى قواعدها المصطفى صلى الله عليه وسلم بهداية الوحي، وانجذب فكرها نحو التجزيئية اللامتناهية في جميع المستويات والحقول المعرفية، وقد كشفت هذه النتائج عن خطورة هذه التجزيئية التي قادت الأمة إلى إهدار طاقتها، وتسطيح وتبلُّد عقلها، وابتعدت عن غايتها وهدفها، وتوصل البحث إلى إبراز أهمية "منظور السننية الشاملة" للطيب برغوث، الذي أدرك بما أوتي من حس سنني أن هناك ضرورة للم شمل هذه الجزئيات والتفاصيل السننية، وردها إلى أطرها السننية المقاصدية الكلية الشاملة، لأن الجزئيات السننية منفردة قد "تكون سببا قويا للاضطراب الفكري والثقافي والنفسي والسلوكي والاجتماعي والضعف الحضاري للأمة الإسلامية.
Development of motivation for research activities in adolescents in group work
Authors: Dekina Elena Viktorovna , Shalaginova Kseniya Sergeevna
Published: December 2024

The work is devoted to the study of the features of development of motivation for research activities in adolescents in club work. Within the framework of research activities, not only the acquisition and comprehension of new knowledge occurs, but also its application in solving practical problems. Currently, there is a search for forms and content of development of motivation of adolescents for research activities. In the course of the work, theoretical, empirical (author's questionnaire, testing, pedagogical experiment) methods, methods of processing the research results were used. The diagnostic program of the study included 6 methods in order to study the features of motivation of adolescents for research activities. The study involved 6th grade students. The program for developing motivation in adolescents for research activities in club work included different forms of work: student conference, work in microgroups, classes with elements of training, business game, etc. It is noted that the development of motivation for research activities in adolescents in club work will be more successful if the individual and age-psychological characteristics of adolescents (motivation, research activity, openness to new things, etc.), their interests are taken into account; providing an individual approach, creating situations of success, self-affirmation and self-expression. The results of the study, the motivation development program can be used in the work of the psychological service, class teacher, education advisor, head of the scientific circle at school in an institution of additional education.
Longitudinal analysis of life values of adolescents with mental retardation and normotypical peers
Authors: Vorobyova Marina Anatolevna , Kolmakova Valentina Vladimirovna , Sokolova Anzhela Vladimirovna
Published: December 2024

The article presents the results of a longitudinal study comparing the dynamics of life values development in adolescents with mental retardation and normotypic peers. The study of the dominant values of normal adolescents and adolescents with mental retardation was carried out at the municipal autonomous educational institution secondary comprehensive school No. 157, Yekaterinburg, in the period from 2021 to 2023. The life values of adolescents were diagnosed using two methods: "Methodology for the Study of Value Orientations" (M. Rokeach), "Hierarchy of Life Values" (G.V. Rezapkina). The study showed that adolescents with mental retardation and normotypic peers have similar life values, but with some noticeable differences. These differences emphasize the importance of providing individual support to adolescents with mental retardation, which will contribute to their personal growth. The obtained data will also be of interest to teachers, parents and specialists who organize and implement correctional and developmental work, ensuring the well-being of adolescents with mental retardation. The study of the dynamics of the development of values of adolescents of the norm and mental retardation allowed us to conduct a comparative analysis and determine the trends in the formation of values in these categories of adolescents.
Formation of digital competencies among graduates of legal specialties
Authors: Burtseva Elena Vasilevna , Rak Igor Petrovich , Seleznev Andrei Vladimirovich
Published: December 2024

The article considers the topical issue of using information technologies in the process of professional training of legal personnel in order to form the level of digital competencies necessary in modern conditions of digitalization of the economy. The approaches of various universities preparing legal personnel to the selection of disciplines that form digital competencies are analyzed. It is especially emphasized that the minimum volume of disciplines that form this type of competence in many universities does not allow training lawyers who have the necessary skills to solve professional problems using modern information technologies. The authors, using the example of the discipline "Criminalistics," proposed an approach to the formation of the required level of digital competencies through the use of information technologies in the process of studying the disciplines of direction and profile. The article substantiates the feasibility of using video materials in lecture classes; holding lectures and conferences accompanied by presentations; mandatory practical training with the help of educational software (computer business and educational games, simulator programs, virtual reality technologies) in the process of studying discipline disciplines and profile, as this contributes not only to more effective assimilation of educational material by students of legal specialties, but also to the formation of the level of digital competencies necessary in modern society.
Methodology for implementing an interdisciplinary project based on no-code technology in the process of teaching students of the master's programme "Multimedia design"
Authors: Severova Tamara Stepanovna
Published: December 2024

Teaching Internet technologies to Multimedia Design students contributes to their success in the labour market, provided that the project method and other similar approaches are used in the learning process. The article analyses the experience of teaching modern Internet technologies to students of the Master's programme "Multimedia Design" at the Art and Graphic Faculty of the Pedagogical University. Research methods: analysis of scientific and pedagogical literature and pedagogical experiment. It was established that the problem of teaching students in creative training areas technical skills required for creating Internet products can be solved by using no-code technology and the individual project method. Using creating a website for a randomly selected customer and developing one's own art and pedagogical Internet project as the example, we analysed the application of the individual practice-oriented project method. The results allowed us to draw conclusions that creating digital products without writing code enables students to perform completed Internet projects using special services and platforms, and the method of individual practice-oriented project allows them to perform personally significant Internet projects and helps to increase motivation for learning and the formation of universal and professional competences. The results of the study can be used in teaching Internet technologies to creative students.
Features of the structural components of self-awareness in children aged 5-6 years in the aspect of parent-child relationships
Authors: Bykova Olga Nikolaevna
Published: December 2024

This article presents the results of an experimental study devoted to the study of the features of the structural components of self-awareness in children aged 5–6 years in the aspect of child-parent relationships. Addressing the designated issue is associated with the presence of significant deformations in the system of child-parent relationships recorded in recent decades in modern families, which negatively affect the personal development of the younger generation. Particularly significant in this issue is the preschool period, when the fundamental foundations of the child's personality are formed, first of all, the ability to realize his or her Self. At the same time, despite the increased relevance of the designated problem, it can be stated that it has not been finally resolved. The purpose of the study is to identify the features of the structural components of self-awareness in children aged 5–6 years in the aspect of child-parent relationships. The research methods are theoretical analysis and generalization of scientific literature on the research problem, ascertaining experiment, quantitative and qualitative analysis of the obtained data, methods of their interpretation. Results of the study: during the experimental study, the hypothesis was confirmed that the features of the structural components of self-awareness in children aged 5–6 years in the aspect of parent-child relationships are as follows: harmonious relationships between parents and a child in the family contribute to the formation of a higher level of the "I-image", a claim to recognition, a sense of gender identity, a sense of oneself in time, an understanding of one’s rights and responsibilities compared to disharmonious ones.
The problem of humanitarization of ecology and environmental education in the context of solving environmental problems
Authors: Petrova Ekaterina Viktorovna
Published: December 2024

The article is devoted to the analysis of the current trend in environmental science and environmental education – humanitarization. A brief description of the stages and varieties of environmental education and upbringing is given and it is concluded that at all stages one of the main goals of environmental education is the development of a full–fledged, comprehensive environmental consciousness and environmental culture. A developed environmental awareness and ecological culture are powerful weapons in the fight against the environmental crisis. The most effective in this regard is humanitarian ecology, the task of which is to form in the minds of students a valuable, personal, ethical, aesthetic attitude to nature, awareness of the unity of humanity and nature. Environmental awareness cannot be formed only on the basis of a system of environmental prohibitions and information about environmental disasters. Culture, society, symbolic worlds (for example, digital) occupy an increasing place in the human mind, displacing the natural world from it. The task of humanitarian ecology is to return nature to man, albeit in an indirect, refracted form. It is possible to accomplish this task through the use of an environmental narrative, artistic and aesthetic means, and moral and environmental education. The humanitarization of environmental education is recognized as the main vector of its development until 2030.
Jóvenes universitarios, alimentación y aplicaciones móviles: una revisión de estudios
Authors: López Martínez Encarnación , González Díaz Cristina , Fortanet van Assendelft de Coningh Christian
Published: December 2024

Introducción: Las apps son programas informáticos que se han convertido en herramientas imprescindibles en nuestra vida diaria. En el ámbito educativo, son aliadas para los estudiantes, potenciando su aprendizaje y motivación. En el caso de las apps de alimentación, pueden ayudarles a mantener una dieta equilibrada y a cuidar su salud.  Metodología: revisión bibliográfica sobre estudios de apps de alimentación, publicados desde 2020 hasta 2024, en la base de datos Scopus. Resultados: Se presentan diversas propuestas de objeto de estudio, con diferentes metodologías, para evaluar la efectividad y usabilidad de apps móviles en la mejora de la dieta y hábitos alimenticios, analizando la calidad, privacidad y seguridad de los datos. Discusión: El uso de apps para seguimiento de la dieta está asociado con cambios positivos en la alimentación, como mayor ingesta de frutas y verduras; ayuda a tomar mejores decisiones; y promueve elecciones alimentarias más saludables a largo plazo. Conclusiones: Se deberían realizar estudios más profundos, entre universitarios durante los años que dura su formación, para valorar si una intervención de este tipo promueve una alimentación saludable y nutritiva y que se alejen de hábitos alimentarios tan perjudiciales para su salud como es la basada en alimentos ultra procesados.
Boris Sawinkow w egodokumentach rosyjskiej emigrantki Zinaidy Gippius
Authors: Ndiaye Iwona Anna
Published: December 2024

Niniejszy artykuł stanowi próbę dokonania kontekstualnej interpretacji zapisów diariuszowych pod kątem przedstawienia w nich sylwetki i działalności rosyjskiego rewolucjonisty Borisa Sawinkowa (1879–1925). W centrum naszej uwagi pozostają egodokumenty rosyjskiej diarystki Zinaidy Gippius (1869–1945), jednej z najciekawszych indywidualności twórczych końca XIX – początku XX w.Celem artykułu jest przedstawienie wizerunku Sawinkowa w Dziennikach petersburskich, powstałych w burzliwym okresie historycznym początku XX wieku, stanowiących zapis wydarzeń politycznych, kulturalnych i społecznych w Rosji oraz na emigracji. Punktem wyjścia do podjętych rozważań pozostaje zatem stanowisko, iż ego-dokumenty pozwalają wyjaśnić „białe plamy” historii, zrozumieć źródła i konteksty wydarzeń historycznych oraz odkrywać nowe fakty w badaniach historycznych.
Kazimierza Sosnkowskiego ocena zagrożenia militarną agresją ze strony Niemiec i ZSRS w odpowiedzi na pytanie skierowane do polskich oficerów przez Józefa Piłsudskiego w kwietniu 1934 roku
Authors: Kała Grzegorz
Published: December 2024

Artykuł przedstawia wydarzenia na przełomie kwietnia i maja 1934 r., gdy Józef Piłsudski zlecił wybranym oficerom Wojska Polskiego ustalenie głównego źródła zagrożenia dla Polski w przyszłości – czy jest ono bezpośrednio związane z planami Berlina, czy Moskwy. Kazimierz Sosnkowski również udzielił odpowiedzi, którą obszernie uzasadnił. Tekst podejmuje próbę oceny jego odpowiedzi podwzględem użytych argumentów oraz weryfikacji ogólnych prognoz w przyszłości.
Wizyta Stanisława Mikołajczyka w Olsztynie 23 sierpnia 1945 roku w świetle dokumentów Wojewódzkiego Urzędu Ziemskiego
Authors: Gross Radosław
Published: December 2024

Pod koniec sierpnia 1945 r. Stanisław Mikołajczyk, wicepremier i minister rolnictwa i reform rolnych w Tymczasowym Rządzie Jedności Narodowej, odbył podróż po Polsce, której celem było zapoznanie się z sytuacją gospodarczą w rolnictwie oraz budowa struktur Polskiego Stronnictwa Ludowego (PSL). Odwiedził m.in. Olsztyn, gdzie uczestniczył w konferencji dotyczącej problemów społeczno-gospodarczych regionu. Choć nie zachowały się szczegółowe informacje o rozmowach politycznych toczonych w wąskim gronie ludowców związanych ze stronnictwem Mikołajczyka, sprawozdanie z konferencji dostarcza cennych informacji o najważniejszych problemach regionu.
Press coverage of the Zabern affair (1913–1914) in Prussian partition and in Upper Silesia
Authors: Kożuchowski Łukasz
Published: December 2024

The article analyzes the coverage of the Zabern affair (1913–1914) in selected Polish newspapers published in Prussian partition and in Upper Silesia. The affair was a crisis of domestic policy in the German Empire shortly before the outbreak of World War I. The portrayal of the events and the main protagonists of the Zabern affair, including Emperor Wilhelm II, in Polish press was also examined. The article discusses the parallels between the published accounts of the Zabern affair and the fate of Poles living in Prussian partition. Attempts were also made to identify cultural factors and stereotypes that could have influenced the tone of press articles.
Analysis of gradient profiles and morphology of the Vela Jr. supernova remnant
Authors: Pronicheva S. A. , Iyudin A. F.
Published: December 2024

We present the study of gradient profiles of the Vela Jr. northwestern rim in X-ray emission and the morphology of this supernova remnant in various spectral ranges of electromagnetic radiation to estimate the distance to the object and its age. In this work were used radiation intensity spatial distributions for the northwestern rim of the supernova remnant RX J0852.0–4622 in the X-ray energy range, 1000.0–2000.0 eV, obtained from measurements of the EPIC-pn camera of the XMM-Newton space observatory for four consecutive time intervals. From the calculated shifts over the period from 2004 to 2018 of the X-ray intensity profiles along the northwestern rim of Vela Jr., limits were obtained on the angular expansion rate of the shock wave of this remnant’s region into a cloud of gas, probably hydrogen: minimum speed Vθmax= 0.29ʺ ± 0.04ʺ year –1 and maximum Vθ60= 0.82ʺ ± 0.11ʺ year –1 .The hydrogen cloud with which the supernova shock wave interacts along the northwestern rim of Vela Jr. is very inhomogeneous. The upper limits for the age of the remnant and the distance to it based on the cloud density estimate are 1920 years and 450 parsecs, respectively. More stringent restrictions on such parameters of RX J0852.0–4622 as its age and distance to it were obtained by analyzing the remnant’s two-ring morphology based on its images in ultraviolet, X-ray, radio and gamma rays: 1190 ± 250 years and 280 ± 60 parsecs.
Crystal structures of two polymorphic modifications and thermodynamic parameters of vaporization of copper бис-heptafluoromethyloctandionate
Authors: Stabnikov P. A. , Bespyatov M. A. , Korolkov I. V. , Sukhikh A. S. , Plyusnin P. E. , Trubin S. V. , Sartakova A. V. , Sysoev S. V.
Published: December 2024

By evaporation of the solvent from the solutions, crystals of copper bis-heptafluorodimethyloctandionate (Cu (fod)2) were grown. Crystals of monoclinic syngony (I) and from acetonitrile of monoclinic (I) and triclinic (II) syngony are obtained from toluene. Crystallographic data: (I) P21/c a = 13.1863 (6), b = 9.8118 (4), c = 10.6997 (6), β = 113.633 (2) °; (II) Р-1 a = 10.7941(12), b = 11.4759(14), c = 12.5263(13), α = 115.350(4), β = 102.957(4), γ = 100.999(4)°. Packages I and II have the same structure of the molecule. Crystal structures I and II are molecular and consist of discrete molecules Cu (fod)2. For liquid and crystalline (phase I) Cu (fod)2, temperature relationships of saturated vapor pressure in the range 314-393 K were obtained by flow method. Thermal stability of the compound is determined, thermodynamic parameters of sublimation and evaporation are established.
Phase equilibria in a four-component system NaF–NaCl–Na2MоO4–Na2WO4
Authors: Matveev A. A. , Sukharenko M. A. , Garkushin I. K.
Published: December 2024

This paper presents a theoretical and experimental study of the four-component Na+||F–,Cl–,MoO42–,WO42– system. A stable triangle and a square divide systems into stable tetrahedron, five-vertex and six-vertex. The prediction of the number and composition of crystallizing phases carried out for stable elements of the phase tree. Faceting elements contain sodium molybdates and tungstates and compounds Na3ClMoO4, Na3ClWO4, Na3FWO4, Na3FMoO4, which form a continuous series of solid solutions – Na2MoxW1–xO4, Na3ClMoxW1–xO4 and Na4F2MoxW1–xO4. A phase equilibria in the stable tetrahedron NaF–NaCl–D3–D4 experimentally studied by the method of differential thermal analysis. The absence of nonvariant equilibrium points in the tetrahedron and the stability of the continuous series of solid solutions established. The melting point and composition of the alloy maching to the point lying on the monovariant curve, connecting ternary eutectics E2 and E4 revealed. Phase reactions for various elements of the composition tetrahedron described.
Optical ceramics obtained by hot pressing of CVD-ZnSe powder
Authors: Balabanov S. S. , Timofeeva N. A. , Evstropov T. O. , Kosyanov D. Yu. , Naumova A. V. , Filofeev S. V.
Published: December 2024

The influence of mechanical grinding conditions of high-purity CVD zinc selenide (ZnSe) powders on their particle size distribution, their sintering process, and the transparency of optical ceramics has been studied. Powders with an optimal granulometric composition were obtained, having an average particle size of 0.3 μm with a maximum of not more than 1 μm. These parameters were achieved by grinding the powders in a planetary ball mill for 20 hours at a grinding bowl rotation speed of 150 rpm. ZnSe optical ceramics are fabricated by a combination of hot pressing and subsequent hot isostatic pressing of CVD powders. The maximum transmission for 2 mm thick samples was 69% (close to theoretically achievable) at a wavelength of 14 μm. The combination of characteristics of CVD ZnSe powders subjected to additional grinding shows their promise for use in optical ceramic technology.
Hydrothermal Synthesis and Photocatalytic Prореrties of Iron-Doped Tungsten Oxide
Authors: Zakharova G. S. , Podvalnaya N. V. , Gorbunova T. L. , Реrvоva M. G. , Enyashin A. N.
Published: December 2024

Substitutional solid solutions of the general formula h-W1–xFexO3, where 0.01 ≤ x ≤ 0.06, crystallizing in the hexagonal system based on h-WO3, were obtained using the hydrothermal synthesis method. It was shown that the crystal lattice of the synthesized compounds h-W1–xFexO3 is stabilized by NH4+cations in hexagonal channels. Using quantum chemical calculations, it has been proven that doping with iron is realized by replacing cations in the tungsten sublattice, and not by intercalation into lattice channels. In this case, the dopant is not an independent participant in reactions involving h-W1–xFexO3, causing only the reorganization of the near-Fermi states of the h-WO3 matrix. It has been established that the region of solid solution homogeneity with respect to the dopant ion is determined by the pH of the working solution. The largest specific surface area, equal to 108 m2/g, has h-W0.94Fe0.06O3, synthesized at pH 2.3. Its photoactivity when applied to 1,2,4-trichlorobenzene is several times higher than that of m-W0.94Fe0.06O3.
Di- and Octanuclear Iodoantimonates(III) with 1,2-Dimethylpyridinium and 3-Bromo-1-Ethyllpyridinium: Crystal Structure and Physico-Chemical Properties
Authors: Shentseva I. A. , Tagiltsev K. A. , Usoltsev A. U. , Korobeynikov N. A. , Shayapov V. R. , Sokolov M. N. , Adonin S. A.
Published: December 2024

By the reaction of SbI3 and iodides of the corresponding cations in organic solvents, two new antimony complexes were obtained — (3-Br-1-EtPy)3[Sb2I9] (1), (1,2-MePy)4[Sb8I28] (2). The features of the crystal structure of the compounds were determined by X-ray diffraction. The complexes are thermally stable up to at least 200°C and have a band gap of about 2.2 eV.
Thermodynamic Properties of Lutetium Stannate Lu2Sn2O7 in the Temperature Range 0–1871 K
Authors: Ryumin M. A. , Tyurin A. V. , Khoroshilov A. V. , Nikiforova G. E. , Gavrichev K. S.
Published: December 2024

Lutetium stannate with a pyrochlore structure was synthesized using solid state reaction route. The heat capacity of the polycrystalline Lu2Sn2O7 in the temperature range 7.99–1871 K was measured by adiabatic and differential scanning calorimetry methods. Entropy, enthalpy change, and derived Gibbs energy were calculated from the smoothed heat capacity data. The Gibbs free energy of Lutetium stannate from simple substances was estimated, using the ΔfS°(Т) values obtained in this work and the ΔfH°(Т) values from the literature. The temperature dependence of the cubic crystal lattice parameter and the value of the coefficient of thermal expansion in the temperature range 300–1273 K were determined by high-temperature X-ray diffraction.
Analysis of Chemical and Phase Transformations during the Synthesis of Glass Ceramics based on Bismuth-Barium-Borate Glass and Er : YAG
Authors: Plekhovich A. D. , Kutyin A. M. , Balueva K. V. , Rostokina E. E. , Komshina M. E. , Shumovskaya K. F.
Published: December 2024

An original combination of thermal activation with exposure to a strong non-uniform electric field transforms a multicomponent solution into a precursor. The transformation of an aerosol into a finished mixture eliminates the stage of gel formation, its lengthy drying and subsequent polluting grinding, providing the molecular level of mixing of various components inherent in the sol-gel method. Using the method of synchronous thermal analysis (STA), the phase, chemical and other thermal manifestations of 1) the bismuth-barium borate part of the charge (0.2Bi2O3-0.6B2O3-0.2BaO), 2) the charge of (Er0.5Y0.5)AG components, and 3) the charge precursor, which initially combines all the necessary components of glass-ceramics, were studied. The Gibbs energy minimization method was used to determine the conditions for the formation of crystalline phases of garnet and yttrium borate, identified by X-ray phase analysis (XRD) data in glass ceramic samples formed at different temperatures from an ultrafine charge.
Phase Equilibria in the La2O3-(Ni/Со)O-Sb2O5 Systems in the Subsolidus Region
Authors: Egorysheva A. V. , Golodukhina S. V. , Plukchi K. Р. , Razvorotneva L. S. , Khoroshilov A. V. , Ellert O. G.
Published: December 2024

Subsolidus phase equilibria in the La2O3–(Ni/Со)O–Sb2O5 systems have been studied. A previously unknown compound La4Sb2O11 was found in the system La2O3–Sb2O5. La4Sb2O11 has been shown to be decomposed at a temperature of 1060°C to form La3SbO7 and LaSbO4. Two ternary oxides LaNi2SbO6 and La2NiSb2O9 were found in the La2O3–NiO–Sb2O5 system for the first time. These new compounds are stable and do not undergo polymorphic transformations throughout the studied temperature range (25–1350°C). The existence of previously known triple oxides La3Ni2SbO9 and LaNi1/3Sb5/3O6 with structures of perovskite and rosiaite, respectively, has also been confirmed. Two more new compounds LaCo2SbO6 and La2CoSb2O9 are formed in the La2O3–CoO–Sb2O5 system along with previously known compounds with the structures of perovskite La3Co2SbO9, rosiaite LaCo1/3Sb5/3O6 and rhombohedral pyrochlore La3Co2Sb3O14. These compounds are isostructural to those found in the nickel oxide system. The La2CoSb2O9 compound, unlike similar nickel compound, decomposes at a temperature of 990°C. For LaCo2SbO6, no thermal effects on DSC curves associated with polymorphic transitions or melting were detected up to 1350°C. Analysis of the optical diffuse reflection spectra of the newly synthesized phases LaNi2SbO6, La2NiSb2O9, LaCo2SbO6 and La2CoSb2O9 showed that nickel and cobalt in them are in the oxidation state of 2+. Isothermal sections of La2O3–(Ni/Co)O–Sb2O5 systems at 1050°C have been constructed.
Dispersed Metal Alloys: Synthesis Methods and Catalytic Properties (Review)
Authors: Rudneva Yu. V. , Korenev S. V.
Published: December 2024

The review is devoted to dispersed powdery porous (including deposited) double and ternary metal alloys. Various approaches to the synthesis of these alloys, as well as modern areas of their practical application are considered. An analysis of the relevance of the study of highly dispersed alloys and the feasibility of developing new methods for their production is presented.
Microstructural Evolution of Silver Nanowires upon Their Polyol Formation
Authors: Simonenko N. P. , Simonenko T. L. , Gorobtsov Ph. Yu. , Arsenov P. V. , Volkov I. A. , Simonenko E. P.
Published: December 2024

The microstructure evolution of silver nanowires during their formation by the polyol method at 170°C has been studied. UV-Vis spectrophotometry shows significant changes in the shape of the absorption band associated with the surface plasmon resonance of the resulting silver nanostructures. The X-ray diffraction analysis data indicate that all the obtained nanostructures have face-centered cubic lattice of silver. The effect of heat treatment duration on the I(111)/I(200) ratio was studied. The use of scanning electron microscopy revealed the influence of synthesis conditions on the microstructural features of the particles formed. In particular, after 45 min from the beginning of polyol synthesis a material characterized by an increased concentration of longer nanowires (up to 25 μm in length) is formed, and in individual cases one-dimensional structures up to 70 μm in length are found. The nanowires obtained are characterized by a remarkably low value of diameter (35–40 nm). The time when the process of silver nanowires destruction is intensified and the concentration of micro-rods and zero-dimensional particles increases has also been determined. It is assumed that individual nanowires in the course of heat treatment of the reaction system are connected by side faces, which leads to their recrystallization leading to the appearance of one-dimensional structures with a larger diameter and their subsequent degradation due to emerging defects.
Population Growth and Age Structure of the Pikeperch Sander lucioperca (Percidae) from the Lake Necheritsa (Sebezhsky National Park, Pskov Oblast)
Authors: Lobyrev F. S. , Kuzishchin K. V. , Khokhryakov V. R. , Kislitsa E. E. , Pivovarov E. A. , Pavlov S. D.
Published: December 2024

The size, age, sex structures of pikeperch Sander (L.) from Lake Necheritsa (Sebezhsky National Park) have been studied, as well as linear growth using back-calculation according to the Leo direct dependence function. Growth of pikeperch is described formally by linear equation L ( t ) = 5.4 × x + 0.2 (cm). The length frequencies of individual age groups are normally distributed, which corresponds to ideas about linear fish growth. The population is represented by 13 age classes, the maximum length of an individual in the sample is 872 mm. The analysis of the diet showed the presence of 6 mass fish species observed in the catch, including the young pikeperch; the ratios of individual species in the diet and the sample indicates an absence of electivity of nutrition. According to the estimates, the proportion of pikeperch in the ichthyocenosis in the period 1989–2022 in the Lake Necheritsa has increased by ~ 8 times. A comparative analysis of the linear growth of pikeperch from populations of different regions under environmental conditions, differing in a number of values of key parameters, is carried out. Growth rates of pikeperch from southern populations are generally higher and more consistent with asymptotic growth, while the size limits and life expectancy are generally higher in northern populations. A hypothesis has been tested about the causes of differences in the nature of linear growth.
Decreased Viability and Changes in Sex Ratio in the Offspring of Danio rerio as a Result of Exposure to 2,2 ’ ,5,5 ’ -tetrachlorobiphenyl (PCB 52) on Producers During the Prespawning Period
Authors: Kotsur D. A. , Varakina Yu. I. , Sorokina T. Yu. , Aksenov A. S. , Novoselov A. P. , Chashchin V. P.
Published: December 2024

The results of studies of the impact of 2,2’,5,5’-tetrachlorobiphenyl (PCB 52) on the body of the freshwater fish Danio rerio ( Hamilton, 1822) in the period preceding their spawning are presented. During this experiment, it is established that exposure to PCB 52 of both males and females leads to the increased mortality of offspring in the early stages of development. It is noticeably predominant in groups in which only male parents are exposed to harmful effects. Shifts in the sex ratio in groups among the surviving offspring with a predominance of females compared to the control also turn out to be significant. This effect is more pronounced in offspring groups in which only female parents were exposed. After measuring PCB 52 concentrations in parent animals using gas chromatography – mass spectrometry, it is found that the PCB 52 content in females is almost twice as high as in males. It is concluded that a decreased vitability and an imbalance in the sex ratio in the offspring has a pronounced sex dependence when exposed to PCB 52 on the body of the animal parents.
Features of Astrocytic NMDA Receptors (Review)
Authors: Kosenkov A. M. , Mayorov S. A. , Gaidin S. G.
Published: December 2024

The astrocytic NMDA receptor is a heterotetramer consisting of 7 different subunits. Receptor expression and properties are largely determined by its subunit composition. Astrocytic NMDA receptors have their own functional features – they are weakly sensitive to magnesium ions and have low calcium permeability. Activation of astrocytic NMDA receptors plays an important role in regulating intracellular processes such as gene expression and mitochondrial function. NMDA receptors are involved in astrocytic calcium signaling and can be activated by both ionotropic and metabotropic pathways. Astrocytic NMDA receptors are involved in neuroglial interactions, affecting synaptic plasticity. They are also involved in astrovascular interactions and play a role in regulating vascular tone. Astrocytic NMDA receptors participate in pathological conditions such as ischemia and hyperammonemia. Their blockade prevents negative changes in astrocytes in these pathologies.
Design, In Silico Evaluation, and Determination of Antitumor Activity of Potential Inhibitors Against Protein Kinases: Application to Bcr-Abl Tyrosine Kinase
Authors: Koroleva E. V. , Ermolinskaya A. L. , Ignatovich Zh. V. , Kornoushenko Yu. V. , Panibrat O. V. , Potkin V. I. , Andrianov A. M.
Published: December 2024

Despite significant progress made over the past two decades in the treatment of chronic myeloid leukemia (CML), there is currently still an unmet need for effective and safe drugs to treat patients with resistance and intolerance to clinically used drugs. In this work, 2-arylaminopyrimidine amides of isoxazole-3-carboxylic acid were designed followed by in silico assessment of the inhibitory potential of these compounds against Bcr-Abl tyrosine kinase and determination of their antitumor activity on cell models of the K562 (chronic myeloid leukemia), HL-60 (acute promyelocytic leukemia), and HeLa (cervical cancer) lines. As a result of the joint analysis of computational and experimental data, three compounds exhibiting antitumor activity against cells of the K562 and HL-60 lines were identified. A lead compound demonstrating effective inhibition of the growth of these cells was found, as evidenced by the low values of IC50 equal to 2.8 ± 0.8 μM (K562) and 3.5 ± 0.2 μM (HL-60). The results obtained indicate that the identified compounds form good scaffolds for the design of novel, effective and safe anticancer drugs able to inhibit the catalytic activity of Bcr-Abl kinase by blocking the ATP-binding site of the enzyme.
PREREQUISITES FOR THE FORMATION OF A SYSTEM OF MENTORING HEIRS TO THE IMPERIAL THRONE IN RUSSIA IN THE FIRST HALF OF THE XVIII CENTURY
Authors: Biziaeva N. D.
Published: December 2024

This study is a brief overview of the prerequisites for the formation of a system of mentoring heirs to the imperial throne in Russia in the first half of the XVIII century, which consisted of developing the qualities necessary for the future ruler of the state during the upbringing and education of the child of royalty. The research into the issue of mentoring heirs to the imperial throne is of significant interest for the history of pedagogy since the choice of a mentor for the heirs to the throne, their brothers and sisters always was a matter of national importance. Such a teacher not only educated the child, but also shaped their character, suppressing their shortcomings and focusing on their strengths. Mentors and educators of royal children played the role of a link between the august parents and court teachers.