bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of psychological, cognitive parameters and sleep quality in newly diagnosed patients with Parkinson’s disease
Authors: Anitha Lakshmi  , Venkatesha R  , Doreswamy Kanakaiah  , Yashica Gowda R  , Sai Sailesh Kumar Goothy  , Mukkadan JK  , Sadgunothama Goud Kamparaj
Published: December 2024

Background: Parkinson’s disease is a neurodegenerative disorder that occurs due to the damage of the neurons that secrete the neurotransmitter called dopamine and the cases are growing worldwide. The studies on the observation of the non-motor symptoms in patients with Parkinson’s disease are sparse in the Indian context. The estimated prevalence of Parkinson’s disease in India is 7 million.
Aims and Objectives: The present study was undertaken to assess the psychological and cognitive parameters and sleep quality in newly diagnosed patients with Parkinson’s disease.
Materials and Methods: A total of 30 newly diagnosed patients within the age group of 35–70 years, with Parkinson’s disease were part of the study after obtaining the informed consent. Thirty age and gender-matched healthy participants were also part of the study. Cognitive parameters were recorded using spatial and verbal memory tests. The psychological parameters were collected using the generalized anxiety disorder seven questionnaires which is a self-administered questionnaire. Sleep quality was assessed using an insomnia severity questionnaire which is a seven-item questionnaire.
Results: The anxiety scores were significantly high in the patients with Parkinson’s disease when compared with the controls. The sleep quality was significantly poor in the Parkinson’s patients compared to the controls. Spatial and verbal memory scores were significantly lower in Parkinson’s patients than in the controls.
Conclusion: The present study results support that the non-motor symptoms are also prominent in patients with Parkinson’s disease. Higher scores of anxiety, lower scores of spatial and verbal memory, and poor sleep quality were observed in patients with Parkinson’s disease. The study recommends further detailed studies in this area to consider these parameters also in managing Parkinson’s disease.
Supine versus prone percutaneous nephrolithotomy: Surgeon and anesthesiologist perspective. Can agile supersede traditional?
Authors: Priyanka Bansal  , Tarun Mittal  , Devendra Singh Pawar  , Nidhi Sultania
Published: December 2024

Background: Percutaneous nephrolithotomy (PCNL) is the most common surgical procedure for the removal of renal stone of size >2 cm. It has evolved over the years both in terms of surgical technique and plan of anesthesia. The procedure is performed most commonly in the prone position. This position provides edge in offering greater anatomical feasibility due to the posterior retroperitoneal position of kidneys. Supine position bestows several perks over prone in terms of better access to patient’s airway, lower cardiopulmonary complications, better patient comfort, repositioning issues addressal along with convenient access to the patient by anesthesiologist in case of untoward medical emergency.
Aims and Objectives: The primary aim to compare the safety and efficacy of prone versus supine PCNL. The objective  Visual Analog Scale Score, patient satisfaction rate, stone-free rate, procedure time (calculated from placement of ureteric catheter to skin closure), overall complication rate.
Materials and Methods: This prospective randomized study of 80 patients was conducted at our institute from December 2022 to June 2023. Institutional Ethical Committee clearance was sought and the inclusion criteria were all adult patients aged between 16 and 65 years with single renal, upper ureteric calculus of size 10–25 mm with ASA physical status 1 and 2 having normal renal function and a sterile urine culture.
Results: All the patients completed the study and there were no dropouts. Male/female ratio, age, and stone size were comparable in both the groups. The mean time taken in supine PCNL was 48.3 min and in prone PCNL was 68.7 min, which was significant.
Conclusion: Supine PCNL is a safe and efficacious procedure for renal stone disease in the selected group of patients with results comparable to prone PCNL, having additional advantages like less time-consuming, better upper calyceal access through lower calyx, less radiation exposure to surgeon’s hand, overcoming positional difficulties of prone position, simultaneous accessibility for performing flexible ureteroscopy and more convenient airway access to anesthesiologist and better pain scores.
استعمال مصفوفة المسافة لمانهاتن في تقدير انموذج انحدار ثنائي الحد السالب المكاني
Authors: بسمة محمد لفته مريوش  , اسيل عبد الرزاق رشيد
Published: December 2024

تم تطبيق انموذج انحدار ثنائي الحد السالب المكاني في تحليل عدد الحوادث المرورية التي حدثت في المحافظات العراقية وفق اختلاف انواع الطرق وفي ظل تغيرات حالة الجو لعام 2022, حيث تم استعمال طريقة الامكان الاعظم لتقدير الانموذج وبالاعتماد على مصفوفة الاوزان المعتمدة على المسافة لمانهاتن, وقد تم التوصل الى وجود علاقة طردية بين عدد الحوادث المرورية وحالة الطقس من درجات حرارة وكمية الامطار الساقطة وكمية الاتربة في الجو.
Interrupción voluntaria del embarazo: experiencia de un grupo de mujeres colombianas
Authors: Herrera Herrera Jorge Luis , Llorente Pérez Yolima Judith , Padilla Choperena Candelaria Isabel , Amador Ahumada Concepción Elena , Orozco Gómez Cleiver José
Published: December 2024

Introducción. El aborto continúa siendo un tema complejo que genera debate debido al escasoconsenso entre las autoridades nacionales e internacionales. Sin embargo, recientemente, variasnaciones han efectuado cambios legislativos que reducen o eliminan las penas legales, lo que revelala necesidad de conocer, de voz de las mujeres, las experiencias derivadas de este procedimiento.Objetivos. Comprender las experiencias de un grupo de mujeres colombianas que solicitaron lainterrupción voluntaria del embarazo (IVE). Métodos. Estudio cualitativo de tipo etnográfico,utilizando el método etnoenfermero. Para la recolección de información se aplicaron entrevistassemiestructuradas en profundidad y se utilizó un diario de campo. Resultados. Participaron un totalde 20 mujeres que habían solicitado una IVE en una clínica especializada en salud sexual yreproductiva. Emergieron un total de cuatro categorías que resumen la experiencia de lasparticipantes, descrita por ellas como un suceso difícil, mediado principalmente por el temor alseñalamiento social. Conclusiones. Con la despenalización del aborto en Colombia en marcostemporales definidos, las mujeres perciben menos barreras para acceder a una IVE. Las participantesrelatan que es un momento de gran temor social y una experiencia significativa en sus vidas.
Obtaining Cellulose Nanocrystals in a Medium of Primary Monohydric Alcohols
Authors: Surov Oleg V. , Voronova Marina I.
Published: December 2024

The lack of a universal method for isolating cellulose nanocrystals (CNCs) has encouraged researchers to look for new methods and approaches as alternatives to traditional sulfuric acid hydrolysis. Acid alcoholysis has long been actively used in cellulose depolymerization processes to obtain a variety of alkyl glycosides and further alcoholysis products. In the present article, the authors continue their earlier research on the synthesis of CNCs in the presence of a sulfuric acid catalyst in an alcoholic environment. In this work, CNCs were obtained from sulfate-bleached pulp in a medium of primary monohydric alcohols (СnH2n+1OH, n = 5–8). A maximum CNC yield of 60 % was achieved with pentanol-1 at a sulfuric acid concentration of 50 %. The work revealed that the alcohols studied can be ranked in descending order based on both the acid concentration corresponding to the maximum CNC yield and the yield itself, as follows: pentanol-1, hexanol‑1, heptanol-1, and octanol-1. For octanol-1 the maximum CNC yield was 20 % at an acid concentration of 40 %. The physicochemical properties of the isolated CNCs were studied. No surface alkylation of the synthesized CNCs was found to occur during cellulose treatment in the media of the alcohols studied, as the properties of the CNCs, in general, were similar to those of CNCs obtained by standard sulfuric acid hydrolysis. This study broadens the scope of alternative methods to traditional sulfuric acid hydrolysis, and is likely to appeal to researchers engaged in developing novel approaches for CNC extraction.
Eutanásia na medicina veterinária
Authors: Dallari Júnior José Alfredo
Published: December 2024

The word “euthanasia” has a greek origin, basically meaning “good death”. The technique is applied to humans and animals and, in Veterinary Medicine, it must be elected by the person responsible for the pet and who is guided by the veterinarian. The procedure must be performed by a professional or qualified person under their supervision and carried out quickly, avoiding as much as possible, the patient suffering. This article’s goal is to present the topic, deepen concepts such as mystanasia, orthothanasia and dysthanasia, as well as discuss the responsibility of the veterinarian throughout the process, from supporting the animal’s tutor in the decision for palliative care to, finally, carrying out the procedure in an ethical manner.
Transforming Teacher Performance: Optimizing Learning Through Information and Communication Technology
Authors: Priawasana Endra , Wijaya Pipit Rika
Published: December 2024

This study aims to explore the effect of information and communication technology (ICT) usage on teacher performance at Madrasah Aliyah in Jember Regency. The background of this research is the low quality of teachers in Indonesia, as indicated by the 2015 Teacher Competency Test (UKG) results, with a national average score of only 44.5, far below the standard of 75. A quantitative method with a descriptive approach was used to collect data from 40 teachers as samples, using a questionnaire that had been tested for validity and reliability. Data analysis employed descriptive statistical analysis, classical assumption tests, and simple linear regression. The research results show that ICT usage has a significant impact on teacher performance, with a regression coefficient value of 0.809, meaning that every 1% increase in ICT usage improves teacher performance by 80.9%. The T-count value of 4.904 is greater than the T-table value of 2.035, with a significance level of 0.000, indicating a significant influence. Additionally, the R-Square value of 0.422 indicates that 42.2% of the variability in teacher performance can be explained by ICT usage, while the remaining 57.8% is influenced by other factors. The study also identifies various digital tools and platforms used by teachers, such as Moodle, Google Classroom, Kahoot!, and Quizlet, which contribute to improved teaching performance. However, the study also notes challenges in ICT implementation, including accessibility, technological skills, and curriculum integration. These findings provide a comprehensive view of how ICT can be effectively utilized in education and the challenges that need to be addressed to maximize its benefits. This study has practical and theoretical implications, including recommendations for the use of technology in teaching and the addition of literature on ICT utilization in education
Implementation of Alumni Cooperation Program Development with Polytechnic College of Administrative Sciences, State Administrative Institution Jakarta
Authors: Kamil Faishal Ahmad , Solihati Keisha Dinyah , Handayani Nida
Published: December 2024

This research investigates the development and implementation of the alumni collaboration program at Politeknik Sekolah Tinggi Ilmu Administrasi Lembaga Administrasi Negara (STIA LAN) Jakarta. The background highlights the need for fostering stronger alumni connections with the institution to enhance educational quality, support, and career opportunities for graduates. The main objectives of the research are to evaluate the effectiveness of alumni engagement, examine challenges, and propose solutions for improving the collaboration program. The research utilizes a qualitative approach, focusing on literature reviews and data analysis to identify key aspects of alumni involvement, including communication platforms, alumni contributions to curriculum development, and career support programs. The results show that while the alumni collaboration program has the potential to strengthen institutional ties, several challenges persist, such as low alumni participation, limited awareness of the program’s benefits, and an ineffective organizational structure. The study suggests that improvements in digital platforms, structured mentoring programs, and enhanced alumni recognition can foster stronger engagement and participation. Additionally, it emphasizes the importance of continuous evaluation to refine the program. The conclusion suggests that a well-implemented alumni collaboration program not only benefits alumni but also enhances the institution’s reputation, supports curriculum development, and strengthens ties with the broader professional community. Thus, fostering sustainable alumni engagement is crucial for STIA LAN Jakarta’s long-term growth and the success of its graduates in the workforce.
Innovando en formas educativas vanguardistas
Authors: Rodríguez Torres Javier , Gallent Torres Cinta , Gisbert Caudelli Vicenta
Published: December 2024

Este monográfico se centra en la innovación educativa en la educación superior, explorando metodologías activas y el uso de tecnologías disruptivas para mejorar el aprendizaje y los resultados académicos. Destaca el Aprendizaje Basado en Retos (ABR), las tecnologías como escape rooms y gamificación, y el modelo flipped classroom, que favorecen el pensamiento crítico, la resolución de problemas y la autonomía estudiantil. Se profundiza en la importancia de la integración de enfoques culturales y sociales, como el "Diálogo de Saberes" y el aprendizaje-servicio, para promover una educación inclusiva y contextualizada. Además, se examinan nuevas formas de evaluación, como la autoevaluación mixta y la evaluación participativa, para desarrollar competencias socioemocionales y promover la autorreflexión. Este monográfico invita a estudios prácticos que exploren cómo estas innovaciones educativas pueden transformar la educación superior, preparándola para los retos del futuro y mejorando la experiencia educativa.
Warehouse logistics in Ukraine during the war: problems and innovative solutions
Authors: BOKOVETS Viktoria , BEZSMERTNA Oksana , SHVARTS Iryna
Published: December 2024

The article analyzes the changes that took place in the field of warehouse logistics in Ukraine during the war. In particular, the scale of the destruction of warehouses in different regions, changes in production volumes and turnover, the impact of fuel price increases and the shortage of logistics personnel are described. The necessity and specifics of the innovative restructuring of the country's warehouse logistics are substantiated.
The study showed that since the beginning of the war, the warehouse and logistics infrastructure of Ukraine suffered significant losses. About 20% of warehouse space was destroyed. This caused a reorientation of logistics to the western regions, which raised demand and rental rates for warehouses. Destroyed warehouses that served large companies caused critical difficulties in the distribution of goods and redirected logistics flows to the west of the country.
It was revealed that at the same time there was another shortage - personnel. The departure of workers abroad and mobilization led to a shortage of drivers and warehouse operators, which complicates the storage and transportation of goods. The shortage of drivers in the field of logistics has reached 25%. The war also caused a fuel supply crisis, which made it difficult to deliver humanitarian and other goods.
Investing in mobility and automation of warehouse logistics is relevant for solving the problems. The government and partners are already discussing the creation of modern logistics hubs and industrial parks that will meet international standards.
The innovative component of the enterprise's economic security
Authors: GRYNKO Tatyana , HVINIASHVILI Tetiana , BIRIUKOVA Polina
Published: December 2024

The article investigates the innovative component of the economic security of an enterprise. It considers different approaches to defining the concept of «economic security of an enterprise» and systematizes its key components. Particular attention is paid to the role of the innovative component in ensuring the economic stability and competitiveness of an enterprise. The essence of the concept of «innovative security of an enterprise» is analyzed from different scholarly perspectives. The main groups of risks affecting innovative security are identified: technological, market, and project risks. A system of indicators for evaluating the effectiveness of innovations is examined, considering the specifics of innovative activities. The necessity of an integrated approach to managing innovative security at an enterprise is substantiated.
Ensuring an adequate level of economic security is critical to the viability and efficient functioning of the enterprise. In this context, the innovative aspect occupies a prominent place, as it allows to adapt to the changing environment, increase competitiveness and ensure sustainable development. Also, it can be concluded that the innovative security of the enterprise is a complex state caused by the action of internal and external factors, which creates a favorable environment for the generation and implementation of innovations in all spheres of activity in order to achieve long-term competitiveness, the most efficient use of resources and the minimization of risks. In turn, the effective management of innovation security requires the implementation of systemic measures, such as: monitoring and minimization of innovation risks, formation of an innovation environment, implementation of an innovation strategy, application of relevant indicators for evaluating the effectiveness of innovations. Thus, the appropriate level of innovative security is the key to strengthening the economic stability of the enterprise, increasing its flexibility and adaptability in a dynamic market environment, as well as achieving long-term competitive advantages.
THE IMPACT OF GLOBALIZATION ON INTERNATIONAL FINANCIAL MARKETS
Authors: RUDA Liliia , KRAUS Oleksandra
Published: December 2024

Nowadays globalization is defined as the irreversible growth of interdependence of countries in various aspects, including the economic sphere. In this context, it is important to consider globalization as a key factor in the development of the international financial system. Various aspects of this phenomenon and its impact on global financial processes were examined in this article. The fact that globalization contributes to the increase in the volume of international financial transactions, and it was reflected in the growth of international investments was well-founded. This increase in financial flows contributes to the development of countries that attract investment and helps to expand opportunities for doing business. With the help of global financial markets, companies gain access to additional capital and can manage their finances more effectively. The relationship between the growth of world trade in goods and the growth of GDP has been revealed. It was determined that globalization creates new challenges for the international financial system. In particular, the expansion of international financial operations creates new risks, such as financial instability and volatility of exchange rates: the negative consequences of financial crises, which necessitates the development and improvement of the system of international financial regulation and focuses attention on the need to strengthen international cooperation in this area. A number of direct and indirect channels of international financial integration that contribute to the sustainable  economic growth of countries were outlined. It has been established that globalization also affects the distribution of world financial resources, on the one hand, it can bring financial stability and development to the developed countries, on the other hand, developing countries can suffer from the negative consequences of increasing economic inequality due to large financial flows. It has been proven that globalization also affects the development of new technologies and innovations in the financial sector, in particular, the rapid development of technologies has contributed to the creation of new financial instruments that can change the face of the international financial system. It was analyzed that globalization has both positive and negative consequences for the international financial system. It creates new opportunities for the development and innovation, but also makes challenges and require attention and effective management of international organizations and governments.
comunicación de la angustia
Authors: De Battista Julieta
Published: December 2024

Este artículo indaga la dimensión de comunicación que puede presentar la angustia, especialmente en el caso de la escucha de las psicosis. La relación del analista con su angustia es un asunto esencial para Lacan, quien introdujo una indicación de método en el Seminario X: modelar una orografía de la angustia, conocer en dónde emerge. Ningún final de análisis puede garantizar la exención de la angustia. Sin embargo, el amor de transferencia, el amor-sublimación puede permitir al goce condescender al deseo, otro destino para la angustia, tal vez una forma de extraer de la angustia su certeza a través del acto. Propongo interrogar este “acento de comunicabilidad” desde la perspectiva del encuentro del analizado con una tendencia prevalente de la angustia en las psicosis: la hipocondría. Ese lenguaje de órgano que, en principio no habla, pero puede servirnos en bandeja al objeto. ¿Qué chances para el deseo del analista ante esa angustia hipocondríaca que puede poner en escena al objeto, angustiando? ¿Cómo se juegan cortes, suturas y agujeros ante esa nominación de lo real?
Analysis of Spatial Clustering of Seismic Events in the Northwest Pacific Ocean
Authors: Agaian A. S. , Nekrasova A. K.
Published: December 2024

The spatial clustering of epicenters of seismic events in the Northwest Pacific Ocean is analyzed using the Discrete Perfect Sets (DPS) topological filtering algorithm. The results of the analysis are presented in this paper. Based on the data shallow earthquakes recorded from 1963 to 2022 by the seismic network of the Kamchatka Branch of the Geophysical Survey of the Russian Academy of Sciences, stable areas of epicenter clustering are identified. These areas are associated with the Northern and Southern segments of the Kuril-Kamchatka seismofocal zone and do not depend on the time of recording of the earthquakes. The characteristic clustering radius for the Kuril-Kamchatka seismofocal zone is determined and is found to be 42–44 km. The analysis has confirmed the unique pattern of seismicity in the territory of the Commander segment of the Aleutian arc, which differs from that observed in the Northern and Southern segments.
Acoustic Emission Events Clustering Parameters in Laboratory Rock Fracture Experiments
Authors: Matochkina S. D. , Shebalin P. N. , Smirnov V. B. , Ponomarev A. V. , Malyutin P. A.
Published: December 2024

This paper verifies the compliance of the earthquake productivity law (Shebalin et al., 2020a) in laboratory experiments on rock destruction. Westerly granite and Benheim sandstone specimens were subjected to uniaxial loading under uniform compression. An acoustic-emission (AE) recording system made it possible to create catalogues of AE sources similar to earthquake catalogues. The data from experiments conducted at the Rock Friction Laboratory (USGS, Menlo Park, United States) and the Geomechanics and Rheology Laboratory (GFZ, Potsdam) were analyzed. It was found that the AE events in the considered samples are characterized by a unimodal distribution of the nearest-neighbor proximity function. The compliance of the productivity law for acoustic-emission events in laboratory experiments on the destruction of rock samples is shown, which gives grounds to speak about the similarity of grouping processes in real seismicity and in laboratory conditions.
Features of Seismicity Anomalies before Strong Earthquakes in California
Authors: Petrushov A. A. , Smirnov V. B. , Mikhailov V. O. , Fomina S. A.
Published: December 2024

Before the 15 strongest earthquakes in California with magnitudes M ≥ 6.5 from 1984 to 2023, an analysis of seismicity anomalies was conducted using two parameters: the b-value and the RTL function. Spatiotemporal anomalous areas were identified based on known precursors for these parameters. The values of tuning coefficients for the calculation algorithms and catalog filtering parameters selected for the analysis of each earthquake are presented. Characteristics of the anomalies were determined, including their duration, size, and distance from the center of the anomaly to the earthquake epicenter. A comparison of anomaly durations revealed that, for most earthquakes, RTL parameter anomalies occur earlier than b-value anomalies. This sequence of anomaly occurrence differs from the sequence found by the authors previously when analyzing strong earthquakes in subduction zones and rift zones. A significant portion of the earthquakes studied in California occur with a delay of several months after the completion of the bay-like anomalies of the RTL parameter, which reflect the end of the formation of a metastable region in the medium. Meanwhile, abnormally low values of b-value persist until the moment of the earthquake.
A Spherical Block Model of Lithosphere Dynamics and Seismicity: Current State and Development Prospects
Authors: Rozenberg V. L.
Published: December 2024

A description of the evolution of a spherical block model of the dynamics and seismicity of the lithosphere is given. The main focus is on the current version and the introduction of a constructive automatic calibration (parameter selection) procedure to obtain the best approximation of key properties of regional and/or global seismicity. The paper presents some results of computational experiments.
On the Use of Medium-Term Forecast Data for the Baikal Rift Zone in Seismic-Hazard Assessments
Authors: Ruzhich V. V. , Levina E. A.
Published: December 2024

The article presents the general results of medium- and long-term forecasting of earthquakes with K ≥ 13 (M ≥ 5.0) in the Baikal rift zone. These results have recently been obtained through the joint use of the geoinformation system for predicting the preshock stage of earthquake preparation and its associated two-stage phenomenological model. This model was created based on the analysis of seismological data on the preparation of the most dangerous earthquakes that occurred in the Baikal rift zone. It is consistent with the results obtained in studies of seismic regimes of ice shock preparation on the Baikal ice cover and in conducting full-scale experiments on fault sections with the aim of clarifying physical and mechanical conditions for the emergence of the sources of seismic-induced oscillations.The paper provides an example of practical use of results obtained for earthquake forecasting, as well as the ways of refining seismic hazard assessments relative to the infrastructure in the city of Angarsk 100 km away from the seismically hazardous Main Sayan Fault (MSF), whose zone reveals a “locked” segment with a seismic gap during the seismic regime analysis. In accordance with its linear dimensioning which represents a length of 60 km, two L/M equations served as a basis for potential energy calculations whose maximum values correspond to Mmax 7.1 and 7.8. It is shown that the use of the obtained earthquake-forecast results assists in refining the level of seismic hazard for the nearest time intervals of expected earthquakes with different Mmax values. Consideration is being given to the example of assessing the current seismic hazard using a medium-term forecast for the infrastructure of the city of Angarsk for the probability of seismic shaking from the southeastern section of the MSF zone for the next 10 and 50 years. The comparison with the OSR-16 map showed that the calculations carried out indicate a relatively lower level of seismic hazard for the city of Angarsk for 10- and 50-year expectation periods.
The Fine Structure of Coseismic Electromagnetic Response Based on Geomagnetic and Seismological Observations
Authors: Soloviev A. A. , Aleshin I. M. , Anisimov S. V. , Goev A. G. , Morozov A. N. , Sapronov D. S. , Solovieva E. N.
Published: December 2024

This paper examines the response in geomagnetic field variations caused by the 2020–2023 earthquakes with magnitudes Mw ≥ 7.0 in the Aegean Sea and eastern Turkey. A detailed comparison of high-precision observations of the geomagnetic field and seismograms recorded at complex geophysical observatories within a radius of 3000 km from the epicenters was carried out. The joint analysis involves averaged 1-s data on the rate of change of the magnetic field and records from broadband seismic stations. Their characteristics are assessed in both time and frequency domains. The spectral characteristics of body and surface waves are separately compared with those of the geomagnetic signal. It is shown that the beginning of disturbance in the magnetic field at each observatory strictly coincides with the arrival of the P-wave and intensifies with the arrival of S-waves. The maximum geomagnetic disturbance is caused by surface waves. The amplitude of electromagnetic excitations is proportional to the amplitude of the parent seismic phases. Thus, the coseismic nature of the observed electromagnetic signal has been confirmed, suggesting its excitation in the Earth’s crust as seismic waves propagate.
Database of Earthquake Focal Mechanisms for the East Arctic Region
Authors: Filippova A. I. , Burlakov I. S. , Fomochkina A. S.
Published: December 2024

In this paper, we present a description of a database of earthquake focal mechanisms, which is compiled from the data of international seismological agencies and literature sources for the East Arctic region. It consists of 595 focal mechanism solutions for 273 seismic events with M = 2.1–7.6, which occurred in 1927–2022. Information about the source depth, the scalar seismic moment, and the moment magnitude are also presented there for many events. In addition to the focal parameters, their quality assessments are available, which facilitates a comparison of different solutions in many cases. For user convenience, the database has a graphical interface that permits searching by various attributes (coordinates, time, magnitude, and depth). In terms of volume of the collected information, our database significantly exceeds all the analogues available at the present time. It can be used to perform a seismotectonic analysis, to estimate the stress–strain state of the lithosphere, and to assess seismic hazard for the entire East Arctic region or its separate areas. Implementation of the compiled database for comparison of different solutions of earthquake focal mechanisms and their seismotectonic analysis is illustrated in the paper on the example of seismic events occurred in the Olenek Bay of the Laptev Sea and adjacent territories. We suggest adding new information to the database every five years in future.
Морфофизиологические и биохимические характеристики сарциноидной микроводоросли Chlorosarcinopsis eremi (Chlorophyceae, Chlorophyta)
Authors: Данцюк Н. В. , Чубчикова И. Н. , Темралеева А. Д. , Минюк Г. С. , Дробецкая В. В.
Published: December 2024

Исследован штамм VKM Al-132 зеленой сарциноидной микроводоросли, изолированный из каштановой почвы зоны сухих степей (Волгоградская область, Россия). По результатам световой и сканирующей электронной микроскопии, а также молекулярно-филогенетического анализа гена 18S рРНК и спейсера ITS2 штамм был идентифицирован как Chlorosarcinopsis eremi. Изучены особенности его роста и вторичного каротиногенеза в условиях двухстадийной накопительной культуры. Средняя продуктивность по сухой биомассе за 21 сут. эксперимента составляла 0.12 г/л·сут., а по суммарным каротиноидам – 0.2 мг/л·сут. В конце стадии вторичного каротиногенеза при доле суммарных каротиноидов в сухой биомассе около 0.25% доминирующими фракциями были кантаксантин и диэфиры астаксантина, причем сумма эфиров астаксантина достигала 36% от суммарных каротиноидов. Показано, что штамм VKM Al-132 может служить потенциально перспективным объектом дальнейших экспериментальных работ, направленных на оптимизацию условий для интенсификации процесса биосинтеза кетокаротиноидов.
Age and sources of the kodar group rocks of the udokan complex (Aldan shield): results of geochemical, U–Th–Pb (LA-ICP-MS) geochronological and Nd–Hf isotopic studies
Authors: Kovach V. P. , Adamskaya E. V. , Kotov A. B. , Podkovyrov V. N. , Larin A. M. , Sklyarov E. V. , Zagornaya N. Y. , Skovitina T. M. , Plotkina Yu. V. , Fedoseenko A. M. , Tong Y.
Published: December 2024

The paper presents the results of geochemical and Nd whole rock isotopic studies, as well as U–Th–Pb (LA-ICP-MS) geochronological and Hf isotope studies of detrital zircon from metaterrigenous rocks of the Kodar Group of the Udokan Complex, Aldan Shield. It has been established that the rocks of the Kodar Group have an age of 1.99–1.91 Ga, and the rocks of the Chinei and Kemen groups of the Udokan Complex are in the range of 1.90–1.87 Ga. This allows us to raise the question of identifying the Kodar Group as an independent stratigraphic unit. Archean igneous and metamorphic rocks of the Chara-Olekma Geoblock and, probably, the Kalar and Kurulta blocks of the Stanovoy suture zone, as well as Paleoproterozoic (2.04–1.99, 2.08, 2.20 and 2.30 Ga) complexes of active continental margins or ensialic island arcs in the western–northwestern and southern (in modern coordinates) framing of the Chara-Olekma Geoblock, not identified in the region on the modern erosion level, were the sources of terrigenous rocks of the Kodar Group. Erosion of rocks of the igneous arcs and the continental slope led to the accumulation of sediments of the Kodar Group in the retro-arc foreland basin setting, and the subsequent collapse of the orogen and the formation of an intracontinental extension basin led to the accumulation of terrigenous rocks of the Chinei and Kemen groups. Obtained data indicate widespread previously unidentified Paleoproterozoic continental crust formation at about 2.04–1.97 Ga in the western part of the Aldan Shield.
Stratigraphic chronology and mechanisms of formation of bottom sediments at the mouth of the Grøndalen River (Grøn-Fjord, West Spitsbergen) during the period of climatic changes
Authors: Meshcheriakov N. I. , Usyagina I. S. , Namyatov A. A. , Tokarev I. V.
Published: December 2024

The results of the study of bottom sediments and water of the estuary of the River Grøndalen (Grøn-fjord, West Spitsbergen) are presented. The stratigraphic features of the sedimentary strata are determined. The chronology of changes in geoecological environmental conditions has been established using radioisotope dating methods. The main factors influencing sedimentation in the study area are air temperature and precipitation during the period of predominance of low temperatures. It is shown that climate fluctuations determine the chronological sequence of the sedimentation rate and the change of the lithotype of the bottom sediment towards fine fractions.
On the textual problems of publishing the novel “Demons” as a part of the Complete Works of F. M. Dostoevsky (1974 and 2021)
Authors: Barsht Konstantin A. , Dymarsky Mikhail Y.
Published: December 2024

The article contains an analysis of the texts of two academic publications of F. M. Dostoevskyʼs novel “Demons” – as a part of the Complete Works in 30 volumes (1972–1990) and the currently published Complete Works in 35 volumes. The textual and historical-literary problems associated with these publications are analyzed, the methodology and errors characteristic of each of the publications are considered, the pros and cons of both publications are analyzed. The importance of the issue of the fundamental discrepancy between punctuation of the 19th century and the modern norm, based primarily on the structural and semantic principle of punctuation marks and developed in much more detail than the codes of the 19th century, is pointed out. The preservation of individual elements of archaic punctuation when reading a text by a carrier of a modern punctuation norm has a destructive effect on meaning. The article considers a number of examples showing the inapplicability of elements of old spelling and punctuation in the modern traditional academic tradition.
Systems of knowledge organizing in philological information resources
Authors: Antopolsky Alexander B.
Published: December 2024

The concept of knowledge organization system (Knowledge Organization System, KOS) is introduced and discussed in this article. Approaches to the typology of KOS are considered. The BARTOC database is analyzed, containing the most complete list of KOS, including more than 130 philological KOS. Philological KOS related to the following types are described: authority lists, terminologies and glossaries, hierarchical classifications, metadata systems, thesauri, ontologies, as well as some unique KOS. Russian philological KOS are considered separately. It is proposed to create a database of Russian philological KOS, as a component of the infrastructure of the Russian scientific and scholarly information space.
Epic word: a comparative analysis of the nominations of the world in the Elder and Younger Eddas
Authors: Toporova Tatyana V.
Published: December 2024

The authorʼs goal is to compare the nominations of the world in the “Elder” and “Younger Edda”, including three types of objects: lexeme (hel, Hel ‘hel; owner of another worldʼ), combination of words (Ginnunga gap ‘gaping abyssʼ), composite (Ás-garðr ‘aces' fenced spaceʼ, etc.). A comparison of the designations of the world in the analyzed texts is quite justified, since only the “Elder” and “Younger Edda” represent a corpus of texts reflecting information about Scandinavian mythology as a system, therefore, in the absence of data from other Old Germanic areas, they become the only source for the reconstruction of German mythology, meaning which is difficult to overestimate. In addition, references to the “Elder Edda” constantly appear in the “Younger Edda”, therefore, the idea of comparison seemed relevant to its author himself, and experts have no right to ignore this circumstance. The research method is implemented in a scheme for describing an epic word, which arose on the basis of lexicological studies of a number of key concepts in the ancient Indian “Rigveda” and a thesaurus description of a folk word, which have undergone fundamental processing. Summing up the results of the comparative analysis of the designations of the world in the “Elder” and “Younger Eddas”, we can state a more archaic stage recorded in the Old Icelandic prose monument, manifested in the presence of nominations of the original loci of cosmogenesis (Mú-spellz-heimr ‘points (in space) destruction of the worldʼ, Nifl-heimr ‘fog worldʼ) and the place of their interaction (the World Abyss), the description of which as an object of the cosmic universe is given in sufficient detail; in the presentation of the opposition between one’s own and someone else’s space, fundamental to the mythopoetic model of the world (Mið-garðr ‘middle enclosed space’ – Út-garðr ‘outer enclosed space’); a more detailed and specific description of the corresponding lexemes and a wider range of their mythological connotations, as well as the factor of theocentrism, in which the reference point is the location of the dwelling of the gods (Ás-garðr ‘the enclosed space of the Asesʼ), for example, in relation to hel ‘another world, the afterlife’.
Is there a proverbial expression it the beginning of Aristophanesʼ Thesmophoriazusae?
Authors: Stepantsov Sergey A.
Published: December 2024

Most of Aristophanesʼ commentators, as well as the author of the ancient scholium, believe that Inlawʼs words “Will a swallow ever appear!” in the first line of Aristophanesʼ comedy Women at the Thesmophoria (Thesmophoriazusae) contains a proverbial expression and means: “Will there ever be an end to suffering!” In the 20th century this opinion was denied by Jan van Leeuwen. Van Leeuwen’s doubts are justified: an analysis of references to the swallow in Greek literature shows only that the swallow was strongly associated with the arrival of spring, but the discussed passage from Aristophanes is the first and only case in classical Greek literature when the appearance of a swallow does not just mean the beginning of spring (metonymically), but also relief in general (metaphorically). There is not enough evidence to confirm that such a figurative mention of swallow was proverbial, although this is very likely. If such a proverb was indeed in circulation, then at the beginning of Thesmophoriazusae it is attested for the first time, and this comedy itself is the only one in Aristophanes in which a characterʼs discontent, usual for the prologue, is uttered by means of a figurative paremic expression.
Verbs with the meaning of visual perception as the basis for the formation of particles
Authors: Glagoleva Anastasiya S.
Published: December 2024

The article examines verbs that have become the diachronic basis for the formation of particles at different stages of language development, as well as semantic transformations accompanying the processes of particularization. The material uses contexts from the National Corpus of the Russian language (pan-chronical and parallel corpus; the corpus of social networks) and from several modern Internet sources.
It was determined that the verbs productive for particularization are to videtʼ and glyadetʼ; the particles derived from them perform various discursive and pragmatic functions, marking the speaker's desire to pay attention to something due to his need for interactivity of communication.
Synthesis of diamond films with reduced roughness in microwave plasma
Authors: Martyanov А. K. , Tiazhelov I. A. , Savin S. S. , Popovich A. F. , Sedov V. S. , Konov V. I.
Published: December 2024

The work studies the effect of nitrogen additions on the secondary nucleation (nucleation) of diamond during its synthesis by chemical vapor deposition (CVD). A series of polycrystalline diamond (PCD) films 2 μm thick were grown on silicon substrates in methane-hydrogen-nitrogen gas mixtures with different nitrogen concentrations (0–1%). The structure and roughness of the grown films were studied using scanning electron microscopy (SEM) and optical profilometry. It has been shown that small additions of nitrogen play a key role in the processes of secondary nucleation of diamond, having a significant impact on the morphology of films. The comparison of the characteristics of grown PCD allowed us to find the optimal nitrogen concentration [N2] ≈ 0.2% for the formation of nanocrystalline diamond (NCD) films with low surface roughness and increased growth rate. The results obtained are expected to be used to optimize the parameters of CVD synthesis of PCD films for use as protective or friction-reducing layers, as well as for the manufacture of superhard cutting tools.
Tensor linearity of two-dimensional isotropic functions in the plane problem of nonlinear theory of elasticity
Authors: Georgievskii D. V.
Published: December 2024

It is shown that a nonlinear isotropic tensor function of the second rank in two-dimensional space, which is a power series in its tensor argument, is representable by a finite binomial tensor linear relation. Expressions of two coefficients of this relation are given in terms of an infinite set of coefficients of the original series and two independent invariants of the tensor argument. In relation to continuum mechanics, the reducibility of the constitutive relations in the plane problem of tensor nonlinear elasticity theory to the tensor linear connection of the corresponding second-order minors of stresses and strains is established.
Using RBF-FD for calculation of hydroelastic vibrations of axisymmetric orthotropic shells of rotation
Authors: Nguyen С. M. , Shelevaya D. R. , Krasnorutsky D. А.
Published: December 2024

Geometrically nonlinear differential equations describing the dynamic deformation of axisymmetric shells of rotation are derived on the basis of general equations for solving functions in the global coordinate system. The equations take into account thinning/thickening at large longitudinal strains as well as transverse shear for thick shells. The motion and pressure of an ideal incompressible fluid is described by a displacement potential. To obtain the numerical solution, the finite difference method based on spline interpolation by polyharmonic radial basis functions is applied. The calculation method is implemented in software package. Good agreement of the calculated displacements with the results of modeling by different finite elements in ANSYS is obtained. The frequencies of the hydroelastic vibrations of the tanks are compared with those obtained by the finite element and boundary element method, as well as with results from published articles by other researchers.
Pengaruh Perbandingan Fraksi Volume Serat Eceng Gondok Dan Serat Sabut Kelapa Terhadap Kekuatan Tarik Bermatrik Resin Epoxy
Authors: Endramawan Tito , Sifa Agus , Dionisius Felix , Sukroni  , Prasettya S.
Published: December 2024

Tujuan penggunaan serat alam sebagai penguat material komposit adalah diharapkan mampu menjadi material alternatif pengganti dari penggunaan serat fiberglass dan diharapkan mampu menaikkan kualitas dari serat eceng gondok dan serat sabut kelapa. Pada penelitian ini untuk menentukan nilai kekuatan tarik terbaik maka dilakukan beberapa percobaan menggunakan faktor penentu fraksi volume serat 20%, 25%, 30% dan faktor perendaman dengan larutan NaOH selama 4 dan 6 jam dengan menggunakan matrik berupa resin epoxy. Hasil pengujian menunjukkan bahwa variasi perendaman dengan media larutan alkali (NaOH) selama 6 jam dengan fraksi volume 30% diperoleh hasil kekuatan tarik yang paling baik dengan masing-masing variasi jenis serat, serat eceng gondok diperoleh hasil terbaik 23,32 MPa sedangkan serat sabut kelapa diperoleh hasil terbaik sebesar 22,10 MPa.
ІНСТРУМЕНТИ УПРАВЛІННЯ ЖИТТЄВИМ ЦИКЛОМ ЗРОСТАЮЧИХ ТА ЗРІЛИХ КОМПАНІЙ В УМОВАХ ТЕХНОЛОГІЧНИХ ТРАНСФОРМАЦІЙ ТА ГЛОБАЛІЗАЦІЇ
Authors: БОБРОВНИК Валентина , ЗАНИХАЙЛО Роман
Published: December 2024

Сучасне бізнес-середовище характеризується високою динамічністю, що вимагає адаптації стратегій управління до глобальних змін. Ефективне управління етапами зростання та зрілості компаній є критично важливим для забезпечення їх стійкості та довгострокового розвитку.
У статті проведено систематизацію основних викликів з якими стикаються зростаючі та зрілі компанії. На основі аналізу теоретичних підходів та емпіричних досліджень сформовані  інструменті управління життєвим циклом зростаючих та зрілих компаній в умовах технологічних трансформації та глобалізації. Особлива увага зосереджена на інструментах моніторингу ризиків, управління змінами, впровадження сучасних технологій.
Результати дослідження базуються на міждисциплінарному підході та спрямовані на вдосконалення практики управління життєвим циклом компаній. Основні висновки сприяють розвитку теорії життєвого циклу компаній, надають теоретико-методологічну базу для розробки адаптивних стратегій, що інтегрують принципи фінансово-економічної безпеки, стійкості та інноваційного розвитку та дозволяють компаніям не лише адаптуватися до викликів, а й перетворювати їх на можливості в умовах мінливого бізнес-середовища.