bluuebunny/crossref_metadata_2025 huggingface dataset:
Monitoring adult Delia platura (Diptera: Anthomyiidae) in New York State corn fields using blue and yellow sticky cards
Authors: Olaya-Arenas Paola , Crowther Shea , Degni Janice , DiPaola Anna , Elliott-Vidaurri Lilly V. , Gabriel Aaron , Leeser Jacob , Luttermoser Tim , MacKenzie Laura , Miller Jeff , Myers Holly , O’Neil Kitty , Peng Angela , Rooney Olivia , Rusinek Teresa , Schroeder Hayley , Smith Erik A. , Stanyard Mike , Wise Ken , Zuefle Marion , Poveda Katja
Published: October 2024

The seedcorn maggot, Delia platura (Meigen; Diptera: Anthomyiidae), is a polyphagous pest that feeds on decaying organic matter, seeds, and seedlings of several crops, including corn (Zea mays L.; Poaceae). In corn and soybeans, D. platura is a sporadic pest. To make recommendations as to which sticky trap color is more effective at trapping D. platura, we sampled 52 corn fields in four regions across New York State with blue and yellow sticky cards. More adults were caught with blue (77.6 %) than yellow cards (22.4 %). The same pattern was observed when all individuals were combined and separated by females and males. The higher captures with blue sticky cards were consistent across space and time, indicating the effectiveness of trapping adults and monitoring them at a regional scale.
Transformative insights: Image-based breast cancer detection and severity assessment through advanced AI techniques
Authors: Patra Ankita , Biswas Preesat , Behera Santi Kumari , Barpanda Nalini Kanta , Sethy Prabira Kumar , Nanthaamornphong Aziz
Published: October 2024

In the realm of image-based breast cancer detection and severity assessment, this study delves into the revolutionary potential of sophisticated artificial intelligence (AI) techniques. By investigating image processing, machine learning (ML), and deep learning (DL), the research illuminates their combined impact on transforming breast cancer diagnosis. This integration offers insights into early identification and precise characterization of cancers. With a foundation in 125 research articles, this article presents a comprehensive overview of the current state of image-based breast cancer detection. Synthesizing the transformative role of AI, including image processing, ML, and DL, the review explores how these technologies collectively reshape the landscape of breast cancer diagnosis and severity assessment. An essential aspect highlighted is the synergy between advanced image processing methods and ML algorithms. This combination facilitates the automated examination of medical images, which is crucial for detecting minute anomalies indicative of breast cancer. The utilization of complex neural networks for feature extraction and pattern recognition in DL models further enhances diagnostic precision. Beyond diagnostic improvements, the abstract underscores the substantial influence of AI-driven methods on breast cancer treatment. The integration of AI not only increases diagnostic precision but also opens avenues for individualized treatment planning, marking a paradigm shift toward personalized medicine in breast cancer care. However, challenges persist, with issues related to data quality and interpretability requiring continued research efforts. Looking forward, the abstract envisions future directions for breast cancer identification and diagnosis, emphasizing the adoption of explainable AI techniques and global collaboration for data sharing. These initiatives promise to propel the field into a new era characterized by enhanced efficiency and precision in breast cancer care.
Efficient ecological function analysis and multi-objective optimizations for an endoreversible simple air refrigerator cycle
Authors: Xu Zijian , Ge Yanlin , Chen Lingen , Feng Huijun
Published: October 2024

Combining finite time thermodynamics and exergetic analysis, analogous to the definition of ecological efficient power for heat engines, this paper proposes a unified performance indicator for various cycles, exergy-based efficient ecological function (E

ɛ
) which is defined as product of exergy-based ecological function and coefficient of performance, and introduces it into performance optimization of endoreversible simple air refrigerator cycle coupled to constant-temperature heat reservoirs. Relations among E

ɛ
, pressure ratio (π) and heat conductance distribution ratio (u) are derived by using numerical method. The cycle performance indicators which include cooling load (R), coefficient of performance (ɛ), and exergetic loss rate (E
out/T
0) under the different maximum objective criteria are compared. Taking π as optimal variable, and taking R, ɛ, cooling load density (r), E

ɛ
and their combinations as optimization objectives, multi-objective optimizations, totally 15 optimization combinations, are performed by using NASG-II algorithm. The results demonstrate that, the maximum E

ɛ
criteria can better reflect the compromise among R, ɛ and E
out/T
0. The Pareto solution sets are majorly distributed in 2.5–20 when quadru-objective optimizations are performed. The option selected by LINMAP decision-making method is closer to ideal solution when bi-objective optimization of ɛ and r is carried out.
Are you those folks from across the sea? Biochemical analysis of human remains from the Roman Iron Age site in Grzybnica (Poland)
Authors: Chmiel-Chrzanowska Marta , Fetner Rafał
Published: October 2024

Stone circles of the Wielbark culture, such as those found in Grzybnica, have long fascinated researchers, who debate their function and significance. The aim of the presented study is to determine the origins and subsistence strategies of the population buried near the stone circles in Grzybnica, which may help highlight the role of these sites within Wielbark communities. For analysis, human remains from the cemetery in Grzybnica, West Pomeranian Voivodeship, Poland, were utilized. Radiocarbon dating of five samples, stable isotope analysis of carbon and nitrogen in two samples, and strontium isotope analysis in 20 cremated human remains and 12 plant samples were conducted. Radiocarbon dating confirmed the earlier dating of the site to the period between approximately 80 and 260 CE. Dietary studies indicated that the individuals buried here regularly consumed millet (mean δ13C = –17.8) and animal protein (mean δ15N = 9.5). This diet corresponds with the variability described for the Wielbark culture site in Rogowo. The strontium isotope analysis revealed significant variation between the river valley (0.7157–0.7264) and the adjacent upland (0.7109–0.7138). The isotopic values in humans were homogeneous, ranging from 0.7113 to 0.7130, indicating no outliers that might suggest the presence of migrants. The variability observed in humans corresponds with the values observed on the upland. The results suggest that the group of individuals buried in Grzybnica was a small community that sourced their food from the upland. It is possible that this community was involved in the care of the stone circles, and the circles themselves may have been places of gatherings for local communities. However, it should be noted that only about 20 % of the graves found at the site were analyzed. The lack of migrants may be due to the low mobility of this group or methodological limitations related to the post-glacial nature of the geological substrate. Alternatively, it could also be due to the limitations associated with studying cremated remains, which allow for the reconstruction of events from only about 10 years prior.
A magnetohydrodynamic flow of a water-based hybrid nanofluid past a convectively heated rotating disk surface: A passive control of nanoparticles
Authors: Yasmin Humaira , AL-Essa Laila A. , Mahnashi Ali M. , Hamali Waleed , Saeed Anwar
Published: October 2024

One of the basic fluid mechanics problems of fluid flows over a revolving disk has both theoretical and real-world applications. The flow over a rotating disk has been the subject of numerous theoretical studies because it has many real-world applications in areas like rotating machinery, medical equipment, electronic devices, and computer storage. It is also crucial for engineering processes. Therefore, this article deals with a time-independent water-based hybrid nanofluid flow containing copper oxide and silver nanoparticles past a spinning disk. The Newtonian flow is taken into consideration in this analysis. The influence of magnetic field, thermophoresis, nonlinear thermal radiation, Brownian motion, and activation energy has been considered. The present analysis is modeled in a partial differential equation form and is then converted to ordinary differential equations using appropriate variables. A numerical solution using the bvp4c technique is accomplished using MATLAB software. The current results are matched with the previous literature and established a close relationship with previous studies. The purpose of this investigation is to numerically investigate the time-independent hybrid nanofluid flow comprising copper oxide and silver nanoparticles over a rotating disk surface. The results show that the increased magnetic parameters increase the friction force at the surface, which decreases the radial and azimuthal velocity distribution. At the sheet surface, the radial velocity of the hybrid nanofluid shows dominant performance compared to the nanofluid. On the other hand, the magnetic factor has dominant behavior on the azimuthal velocity component of the nanofluid flow compared to the hybrid nanofluid flow. The higher volume fraction and magnetic factor enhance the skin friction at the disk surface. Furthermore, greater surface drag is found for the hybrid nanofluid flow. The higher solid volume fraction, temperature ratio, and Biot number enhance the rate of heat transmission. Also, a higher rate of heat transmission is observed for the hybrid nanofluid flow.
A hybrid recommender system to support UI/UX designers
Authors: Arsirii Olena O. , Liubomska Olga M. , Rudenko Olexander V. , Ivanov Dmitriy V.
Published: October 2024

A hybrid recommender system has been developed to support UI/UX designers, which is aimed at optimizing the search for relevant information and reducing the time for practical creation of web interfaces. The combination of collaborative filtering and content filtering methods can significantly increase the accuracy and relevance of recommendations for users. The system for clustering publications analyzes their keywords and the time to read the content, which helps to avoid the problem of "cold start". To create a hybrid recommender system, a complex methodology has been developed, which consists of the following stages: obtaining input data, pre-processing, clustering and building a classifier, the next step is building a knowledge base and obtaining recommendations, as well as obtaining data about users of the recommender system, forming a database, analysis user requests to prevent “cold start”. The applied clustering and classification methods, including machine learning, ensured the accuracy of the system's recommendations at the level of 97 %, which is confirmed by the low root mean square error (RMSE = 1.21) and high ratings from users. This helps to increase the efficiency of the work of designers by offering individual recommendations based on their requests.
Enhancement of the graph neural network model for simulation modeling tasks
Authors: Buiukli Viktor S. , Naumenko Roman I. , Tishyn Petr M.
Published: October 2024

In the context of the rapid growth and increasing complexity of network systems, the task of accurately modeling network parameters becomes critically important for effective management and optimization of network infrastructure. In this context, the work focuses on an extended version of the RouteNet model, which enhances modeling capabilities by incorporating network node characteristics such as queue sizes. The original RouteNet model demonstrates good results in predicting delays and packet losses under homogeneous network conditions; however, it has significant limitations when it comes to accounting for variations in node characteristics. The extension of the model involves integrating mechanisms to handle nodes with different configurations, allowing the model to better reflect real network conditions. This includes considering node parameters such as queue sizes, which can vary significantly in real networks. This enhancement makes the model more adaptive and accurate in conditions that are closer to real network scenarios. The study includes a series of experiments involving the training and performance evaluation of the new model, its comparison with the original version, and an analysis of the results obtained. An important aspect is the assessment of the significance of these results for network research, particularly for tasks related to the simulation of computer networks. This not only improves the accuracy of modeling but also provides more effective solutions for managing and optimizing contemporary network systems, which is crucial for their stable and productive operation.
Development of an interactive platform using an Application Programming Interface to facilitate social connections
Authors: Kornilovskа Natalia V. , Vyshemyrska Svitlana V. , Karamushka Marina V. , Sichkariuk Ruslan K.
Published: October 2024

In an era of rapid technological advancement, where human communication has reached new heights, informational platforms play a significant role in transforming many aspects of life. They have introduced new ways of organizing relationships between people, their interactions, and collaboration. In recent years, numerous factors have led to a decline in socialization, contributing to a global issue where social skills are increasingly intertwined with advertising integrations of both large and small companies. Therefore, developing communication platforms that promote social interaction holds great potential for addressing the challenges of modern life and expanding our understanding of human interaction in the digital age. There is an urgent need for a more ethical and responsible use of information systems to prevent the exploitation of human interaction. This requires the implementation of solutions such as communication platforms with open Application Programming Interfaces (APIs), which promote transparency and better control over social interactions. One example demonstrating the deep impact of technology on human relationships is the widespread adoption of social media platforms. Despite their prevalence, all digital networks still face significant challenges. Particularly, popular social media platforms prioritize user profiles over real human relationships, effectively turning social interactions into a product. These platforms often capture superficial exchanges, disconnected from genuine closeness and empathy. This gap is evident and presents an opportunity to find solutions that address pressing issues and bring about meaningful changes in society. Our social network will overcome the limitations of traditional social media by focusing on authenticity, empathy, and genuine human contact. At its core, this platform aims to be a catalyst for fostering meaningful relationships, creating a sense of comfort, promoting a healthy lifestyle, and caring for the common good. The design philosophy involves leveraging existing or proprietary approaches combined with interactive elements and intuitive user interfaces to create an optimal user experience.
The phenomenon of cultural communication in the context of polish christmas nativity scenes
Authors: Bezverkhna Anna V. , Tozhyieva Vitaliia V. , Vankov Artem A. , Zaiarchenko Bohdan R. , Kutsos Viktor O.
Published: October 2024

The article traces the genesis, development, and current state of Polish Christmas nativity scenes as a form of cultural interaction. It identifies the role of nativity scenes in preserving and transmitting cultural traditions, as well as reflecting historical events. The article highlights their impact on the formation of national identity and collective memory, as well as their contribution to cultural communication both in Poland and beyond. Although the term "szopka" began to be used in the 19th century, the tradition of setting up nativity scenes in honor of the birth of Christ dates back to the Middle Ages. Nativity plays combined both religious and secular elements. The "live nativity scene," as a type of Christmas performance, not only recreated biblical events but also contributed to the preservation of cultural traditions, the mutual understanding between different peoples, and the strengthening of civic ties. Over time, representatives of the people (townspeople, peasants, artisans, and soldiers) began accompanying the Holy Family at the nativity scene. Szopki evolved: increasingly more national, folk, patriotic, and customary elements were added to their content and appearance. In the 18th century, nativity scenes with moving figures became popular. Among them, the Kraków nativity scenes (so-called Kraków Bethlehem), whose history dates back to the 19th century, are some of the most famous. They have survived to the present day and have been inscribed on UNESCO's Representative List of the Intangible Cultural Heritage of Humanity. Nativity scenes in Poland, influenced by Franciscan traditions, became not only religious symbols but also cultural artifacts, blending biblical stories with secular elements. Over time, they constantly changed and acquired new forms and cultural meanings.
The role of the individual in the development of land transport culture
Authors: Yakovenko Lyudmyla I. , Horchynskyi Oleksii O.
Published: October 2024

A person's personality traits depend on many factors, such as genetic makeup, upbringing, education, environment, life challenges, etc. In a certain sense, a person is the result of the interaction of these factors; most of his features are determined by the cultural environment in which he is located. At the same time, personality plays a key role in the development of any field of culture. It is important to study the relationships and interactions of certain conditions under which a creative personality capable of changing the world around them is formed. The article examines a separate period of the life of the outstanding Polish researcher Stefan Dzewiecki, who made a significant contribution to the development of land transport culture. Along with such important factors as diligent upbringing, high-quality education, creative environment, the driving force in the formation of the designer's inventive abilities was a restless character, curiosity about the world, inquisitiveness. The early inventions of the engineer, who later engaged in the construction of the first submarines and the improvement of aircraft, relate to land transport. The World Exhibition of 1873 in Vienna changed the fate of Stefan Dzevetskyi. Some of his inventions were purchased by Austrian railways and factories. It was after this exhibition that he proposed to build an "air bicycle". The first successes of the designer became the basis for his future discoveries and inventions. It is probably worth considering the figure of the inventor not only in the plane of his growth as a specialist, but in the entire spectrum of gifts, worldview positions, character traits, etc. After all, the versatility of interests in the professional sphere is harmoniously complemented by openness to the world, to other people, the desire to create and improve the world. Therefore, the first inventions of the engineer are not accidental: he sought to save the life of a simple worker on the railway (the invention of the truck coupling), to transfer the relationship between the carrier and passengers to a higher, more humane level (the revolution of the distance counter for horse-drawn carriages), to make the movement of trains more safe and reliable ( steam regulators) and eventually improve the work of the designer (a compass for drawing all conical sections using a reisfeder). Studying the achievements of this inventor, as well as a deeper consideration of his personality, is relevant for our time. This has an undeniable didactic and educational value, as it sets an example for everyone to wisely use their own gifts and opportunities to improve their living environment, to improve and develop their own abilities and skills, and ultimately, to believe in their abilities and capabilities.
Penggunaan Jobsheet Proyeksi Piktorial terhadap Hasil Belajar Menggambar Proyeksi Piktorial pada Siswa
Authors: Saputra Dito Rizky Nur , Sugiyarto Bambang , Kristianto Virgiawan Adi , Tugino
Published: October 2024

Hasil Belajar siswa pada Materi Proyeksi Piktorial 3D dominan masih di bawah KKM (75). Karena itu diperlukan media pembelajaran yang inovatif dan kreatif yang dapat dipahami dengan mudah oleh siswa. Dengan kata lain, media tersebut harus mampu memudahkan siswa dalam mempelajari proyeksi piktorial 3D. Penelitian ini bertujuan untuk mengetahui perbedaan rata – rata hasil belajar siswa baik aspek kognitif maupun psikomotorik dan mengetahui efektivitas penggunaan jobsheet proyeksi piktorial pada mata pelajaran Dasar – Dasar Program Keahlian DPIB. Melalui metode quasi experiment, penelitian ini menyimpulkan bahwa terdapat perbedaan kemampuan siswa pada ranah kognitif dan psikomotortik antara yang menggunakan jobsheet dengan tanpa menggunakan jobsheet, serta keefektifan penggunaan jobsheet termasuk dalam kategori cukup efektif. Jobsheet yang mampu memudahkan siswa adalah jobsheet yang memenuhi aspek-aspek kevalidan jobsheet, yaitu materi, kebahasaan, tampilan, penggunaan, konsistensi, format, kegrafikan, manfaat, kelayakan. Selain itu, jobsheet juga harus praktis, yang ditunjukkan dengan keterpenuhan aspek- aspek antara lain kejelasan isi, kejelasan cakupan materi, kejelasan informasi, pemanfaatan bahasa secara efektif dan efisien (jelas dan singkat), kebermaknaan, tampilan, adanya daya tarik pembaca, penggunaan font tulisan, lay out jobsheet, kejelasan tata letak struktur karakteristik jobsheet.
ESTIMATION OF SPECIFIC CUTTING ENERGY AND NOISE LEVEL IN CIRCULAR SAW CUTTING PROCESS BY LEEB, SHORE AND SCHMIDT HARDNESS VALUES OF ROCKS
Authors: ЭКИНДЖИОГЛУ Г. , АКБАЙ Д.
Published: October 2024

Определены значения твердости по Либу, Шору и Шмидту для различных образцов карбонатных пород. При помощи методов простой и множественной статистической регрессии рассмотрены соотношения между значениями твердости и параметрами обрабатываемости резанием (удельная энергия резания и уровень шума). Определено, что твердость по Либу может быть альтернативой твердости по Шору и Шмидту, так как позволяет оценить удельную энергию резания и уровень шума.

In this study, the rebound hardness values (Shore-Schmidt-Leeb) were calculated for 12 different carbonate rocks using three different devices. The relationships between hardness values and rock cuttability properties (specific cutting energy and noise level) were investigated by simple and multiple regression analyses. It is determined that the Leeb hardness of the rocks can be an alternative to the Shore hardness and Schmidt hardness and that both the specific cutting energy and the noise level can be estimated with the Leeb hardness values.
USABILITY OF CHLORIDE MINE WATER IN PREPARING CEMENTED PASTE BACKFILL
Authors: РУБАШКИНА Т.И. , КОСТИНА М.А.
Published: October 2024

Выполнены исследования возможности применения высокоминерализованной шахтной воды с повышенным содержание хлорид-ионов для приготовления твердеющих закладочных смесей на основе цемента. Определены реологические и механические свойства твердеющей закладки экспериментальных составов с разным расходом цемента на однородном и комбинированном заполнителях, затворенных водопроводной и шахтной водой с содержанием хлорид-ионов до 0.75 % от массы цемента. Рассчитаны прочности, модули упругости и коэффициенты Пуассона образцов твердеющей закладки на шахтной и водопроводной воде в возрасте 28, 60, 90 и 360 сут нормального твердения. Установлено, что прочностные, упругие и деформационные свойства образцов твердеющей закладки экспериментальных составов на шахтной воде на протяжении всего срока наблюдений изменяются аналогично таким же составам на водопроводной воде с отклонением ± 10 % по прочности и ± 4 % по деформациям. Содержание хлорид-ионов в шахтной воде не оказывает негативного влияния на реологические свойства смеси, процессы образования цементного камня и динамику набора прочности затвердевшего материала.

The usability of salt mine water with high content of chloride-ions in preparing cemented paste backfill is studied. The rheological and mechanical properties of experimental backfill mixtures at different cement consumption are analyzed at uniform and compound aggregate hydrated with tap and mine water with the content of chloride-ions up to 0.75% of the mass of cement. The strength, elasticity modulus and Poisson’s ratio are calculated in cemented paste backfill with tap and mine water after curing for 28, 60, 90 and 360 days. It is found that the strength, elasticity and deformation characteristics of the test cemented paste backfill made of mine water change similarly to the backfill made of tap water, at deviation of ± 10% and ± 4% in terms of strength and deformation, respectively. Chloride-ions contained in mine water have no adverse effect on rheological properties of backfill or hydrated cement, and on dynamics of development of strength in the mixture.
SUPPORT AND STABILIZATION OF TEMPORARY ROADWAYS IN EXTRACTION OF COAL SERIES IN KUZBASS
Authors: ИСАЧЕНКО А.А. , КОРЯГА М.Г.
Published: October 2024

Исследовано влияние конвергенции кровли и почвы подготовительных горных выработок на их состояние в условиях отработки свит угольных пластов Кузбасса. Выделены горно-геологические и горнотехнические условия, влияющие на деформацию горных выработок. Предложена классификация горных выработок по их расположению относительно отрабатываемого и надрабатываемого угольных пластов в свите. Проведен анализ параметров и установлены этапы деформирования горных пород в виде первичной и вторичной конвергенции пород почвы и кровли подготовительных выработок. Первичная конвергенция наблюдается в расположенных параллельно выработанному пространству подготовительных горных выработках, пройденных в надрабатываемом нижнем слое мощного пласта, при отработке пласта средней мощности и в надрабатываемом пласте в почве выработки. Вторичная конвергенция происходит в подготовительных горных выработках в зоне опорного давления от ранее отработанного выемочного участка.

It is examined how convergence of roof and floor affects condition of temporary roadways during extraction of coal series in Kuzbass. The geological and geotechnical factors that can cause deformation in roadways are identified. Roadways are classified in terms of their location relative to a coal seam being mined and a coal seam being overmined in a coal series. The parameters and phases of deformation of rocks are analyzed as primary and secondary convergence of roof and floor rocks in temporary roadways. The primary convergence is observed in temporary roadways located in parallel to the mined-out void and driven in the bottom layer of a thick coal seam being overmined. The secondary convergence takes place in temporary roadways in the abutment pressure zone induced by the earlier mined-out extraction site.
AERODYNAMIC DESIGN OF AXIAL FAN WITH GUIDE VANE FOR REVERSE AIR FLOW
Authors: КРАСЮК А.М. , КОСЫХ П.В.
Published: October 2024

Выполнен аэродинамический расчет схем осевых вентиляторов, имеющих рабочее колесо и входной направляющий аппарат, которые реверсируются путем остановки рабочего колеса и приведением направляющего аппарата во вращение. Это значительно увеличивает производительность вентилятора в реверсивном режиме работы. Разработана методика расчета углов поворота лопаток, позволяющая получать требуемые параметры потока при реверсировании. Определены области расчетных параметров аэродинамических схем осевых вентиляторов, в которых реализуется эффективное реверсирование предлагаемым способом. Рассмотрена задача проектирования вентилятора, обладающего близкими аэродинамическими характеристиками в прямом и реверсивном режимах. Получены зависимости коэффициента закручивания потока в направляющем аппарате от коэффициента осевой скорости, обеспечивающие геометрически подобные профили лопаток колеса и аппарата на среднем радиусе.

The authors perform the aerodynamic design of axial fans with impeller and inlet guide vane to reverse air flow direction via killing rotation of the impeller while putting the guide vane into rotation. This approach can substantially enhance fan efficiency in reverse mode. The newly developed blade angle analysis procedure allows finding air flow parameters in reversal. The parametric regions in aerodynamic designs of axial fans, where the proposed approach of reversal is effective, are delineated. Design of a fan having similar aerodynamic characteristics in the forward and reverse air flow is undertaken. The swirl ratios of flow in the guide vane are correlated with the axial velocity ratios toward geometrical similarity of blade profiles of impeller and guide vane at an average radius.
MINING INDUSTRY IN THE RUSSIAN FAR EAST: BALANCING THE INTERESTS OF SUBSOIL USE AND THE STATE
Authors: РАССКАЗОВ И.Ю. , АРХИПОВА Ю.А. , КРЮКОВ В.Г. , ВОЛКОВ А.Ф.
Published: October 2024

Рассмотрена минерально-сырьевая база Дальневосточного региона России по запасам и объемам добычи отдельных видов полезных ископаемых. Приведены ключевые проблемы недропользования, осложняющие развитие горного комплекса на современном этапе. Показаны перспективы развития минерально-сырьевого сектора на основе создания перерабатывающих производств и перехода от добычи сырья к получению продукта с высокой степенью переработки. Определена экономическая целесообразность недропользования, которая зависит от профессионального корпоративного управления, транспортной и энергетической инфраструктур, научного обоснования, а также развития отечественной перерабатывающей промышленности, использующей продукцию добывающего комплекса. Предложены основные направления пространственного развития недропользования. Представлены крупные инфраструктурные проекты, первоочередная реализация которых будет способствовать росту социально-экономического состояния регионов Дальневосточного федерального округа. Особое внимание уделено развитию кадрового потенциала и практическому внедрению научного сопровождения горнопромышленного комплекса в регионе.

The authors discuss the mineral resources and mineral reserves of the Russian Far East in terms of their volume and production of certain minerals. The key challenges of subsoil use, which complicate advancement in the mining sector at the present time, are identified. The growth prospects of the mining sector can build on the processing industry and on the transition from mineral extraction to mineral production at high degree of conversion. The economic efficiency of subsoil use depends on the professional corporate management, transportation and power generation infrastructure, sound scientific grounding and on the development of the processing industry which uses products of the mining industry. The main trends of the spatial development in subsoil use are proposed. The large infrastructural projects are described, which can promote social and economic progress in the Far East Federal District of Russia. Emphasis is laid on improvement of personnel potential and on introduction of scientific supervision in the mining and processing industry in the region.
AUTOMATED PLANNING OF UNDERGROUND MINING OPERATIONS WITH REGARD TO GEOLOGICAL AND GEOTECHNICAL CONSTRAINTS
Authors: ЛАПТЕВ В.В. , ГУРИН К.П.
Published: October 2024

Описан алгоритм многофакторного учета горно-геологических и горнотехнических ограничений, критериев определения момента начала работ в зависимости от наличия ресурсов, позволяющий учитывать многообразие возможных комбинаций условий проходки или отработки каждого подземного геотехнологического объекта. Разработанный алгоритм является частью цифрового инструмента автоматизированного планирования подземных горных работ в горно-геологической информационной системе Mineframe.

The authors present a multi-factor algorithm for making provisions for geological/geotechnical constraints and operation timing criteria subject to availability of resources. The algorithm enables embracing a variety of possible combinations of heading or stoping conditions at each specific underground mine facility. The algorithm is a part of the digital tool of automated underground mine production planning in geological and mining information system MINEFRAME.
CONTRIBUTION OF MINERAL IMPURITIES TO COALBED METHANE ACCUMULATION AND RETENTION
Authors: ЗАХАРОВ В.Н. , УЛЬЯНОВА Е.В. , МАЛИННИКОВА О.Н.
Published: October 2024

Проведенные исследования показали, что газонасыщенность угля в призабойной зоне пласта пропорциональна содержанию пирита в угле, которое рассчитывалось по определенному на РФ-спектрометре содержанию железа и серы в этом угле. Полученные результаты подтверждают гипотезу образования метана в угле при восстановлении оксидов углерода в присутствии железосодержащих минералов, в частности пирита и воды, и объясняют различное содержание метана в углях одной стадии метаморфизма. Полученная обратно пропорциональная связь газонасыщенности угля в призабойной зоне пласта с сорбционной поверхностью угля позволяет предположить, что основной объем газов, накопленный в угольных пластах, сосредоточивается в “твердом растворе” и закрытой пористости, т. е. непосредственно в структуре угля, из-за чего он сложнее и дольше извлекается из угля, чем находящийся в открытых порах и трещинах метан, быстро покидающий уголь в призабойной зоне.

The implemented research shows that coalbed gas content in face area is proportional to pyrite content of coal, calculated with respect to iron and sulfur contents determined on X-ray fluorescent spectrometer. These results confirm the hypothesis on methane formation in coal during recovery of carbon oxides in the presence of iron-bearing minerals, in particular, pyrite, and water, and explain different contents of methane in the same rank coals. The obtained inverse proportion between the coalbed gas content in the face area and the sorption surface of coal allows supposing that methane accumulations concentrate mainly in the “solid solution” and in the closed porosity, i.e. in the coal structure. For this reason, it is more difficult and longer to recover such methane from coal than methane accumulated in open pores and fractures, which quickly leaves coal in face area.
TIME HISTORY OF ELASTIC CHARACTERISTICS IN PITWALL ROCK MASS
Authors: РЫБИН В.В. , КОНСТАНТИНОВ К.Н. , СТАРЦЕВ Ю.А.
Published: October 2024

Приведены результаты исследования геомеханического состояния прибортового массива пород в окрестности крупной карьерной выемки с использованием сейсмического метода. С помощью натурных определений скоростей прохождения упругих волн в массиве устанавлены его упругие характеристики, на основе которых сделан вывод об устойчивости участка. Показано, что сейсмическим методом можно получать достаточно надежные данные о динамике изменения геомеханического состояния приконтурного массива на большой площади и осуществлять контроль геомеханической ситуации и устойчивости участков борта карьера. На примере карьера “Железный“ АО “Ковдорский ГОК” представлен многолетний опыт применения сейсмического метода для решения задач обеспечения устойчивости участков борта карьера. Изложенный подход применим для предприятий горной промышленности, разрабатывающих месторождения полезных ископаемых с формированием глубоких карьерных выемок.

The article describes the studies on the geomechanical behavior of the large pitwall rock mass using the seismic method. The on-site measurements of elastic wave velocities in rock mass enabled determining the elastic characteristics of rocks, which allowed an inference on the rock mass stability. It is shown that the seismic method provides sufficiently reliable data on the time history of the geomechanical behavior of the large-area pitwall rock mass, and enables the geomechanics and stability control. The long-term experience of using the seismic method to ensure pitwall rock mass stability is presented as a case-study of Zhelezny Open Pit Mine, Kovdor Mining and Processing Plant. The proposed approach is applicable at deep open pit mines.
EXPERIMENTAL RESEARCH OF MUDCAKE FORMATION ON LOW-PERMEABLE SANDSTONE SAMPLES
Authors: ЕВМЕНОВА Д.М. , ГОЛИКОВ Н.А. , ЕЛЬЦОВ И.Н.
Published: October 2024

Показано, что учет характеристик зоны проникновения, образующейся в процессе фильтрации бурового раствора в пласт, позволяет повысить достоверность геоинформационной системы данных геолого-геофизических исследований в скважинах. Разработана методика интерпретации данных с учетом гидродинамических и геомеханических аспектов бурения. В качестве части зоны проникновения рассмотрена глинистая корка, при которой пористость и проницаемость невозможно напрямую измерить. Представлены результаты экспериментальных исследований динамики роста глинистой корки на образцах низкопроницаемого песчаника коллектора юрского возраста с помощью оригинальной установки. Определена неоднородность глинистой корки по петрофизическим свойствам. При повторных измерениях выявлена зона кольматации.

The authors show that data on characteristics of drill mud penetration zone improve reliability of geoinformation obtained from borehole geology and geophysics. The developed procedure for the data interpretation takes into account the geomechanics and hydrodynamics of drilling. A part of the drill mud penetration zone is represented by mudcake which prevents direct measurement of porosity and permeability. The article describes the experimental studies on growth of the mudcake on the samples of low-permeable sandstone from the Jurassic reservoir rock mass using an original facility. The petrophysical nonuniformity of the mudcake was determined. The repeated measurements revealed the mudding zone.
ELECTROMAGNETIC EMISSION ASSOCIATED WITH FRACTURE OF ROCK SAMPLES
Authors: БИЗЯЕВ А.А. , ВОСТРЕЦОВ А.Г. , СМИРНЯГИН И.И. , ШАРАПОВА М.Д.
Published: October 2024

Приведены результаты экспериментальных исследований разрушения образцов горных пород, имеющих порфиробластовую, гранобластовую, лепидобластовую и слоистую структуру. Эксперименты проводились на лабораторном стенде АСИ-2. Образцы горной породы подвергались одноосному сжатию до нарушения сплошности с синхронной регистрацией сигналов сопутствующего электромагнитного излучения, нагрузки и перемещения вдоль оси сжатия. Установлено, что при разрушении горной породы слоистой структуры проявляются анизотропные свойства геофизических параметров и электромагнитного излучения.

The article presents the fracture test data of rock samples with the porphyroblastic, granoblastic lepidoblatic and laminated structure. The tests were carried out on lab-scale tester ASI-2. The test samples were subjected to uniaxial compression until discontinuity with synchronous recording of associated electromagnetic emission, load and displacements along the compression axis. The laminated rock samples in fracture show anisotropy of geophysical parameters and electromagnetic emission.
Some Notes on the Book of Janina Varnienė. Rec.: Trumpas istorijos kursas. Vilnius, 2006. 438 p.
Authors: Jučas Mečislovas
Published: October 2024

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Unsolved riddle of Jury Andropov
Authors: Burinskaitė Kristina
Published: October 2024

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The Relationship between Academic History and Audio-Visual History in Lithuania: A Closing of the Gap?
Authors: Šermukšnytė Rūta
Published: October 2024

The article is aimed at enumerating the barriers to cooperation between audio-visual communications specialists and formal historians in Lithuania in the 1988-2005 period, determining preconditions for overcoming these stumbling blocks and demonstrating the gap between these two spheres plus the consequences of its narrowing for audio-visual work. Documentary films and documentary-type cultural programs in which recognizable historical reports are discernible and which were made in the 1988-2005 period were used to achieve these aims.
Stumbling blocks for historians preventing cooperation with audio-visual communications specialists are held to be the following: an arrogant position on the part of academics in regard to mass media, the inappropriate application of scientific standards in judging films and programs due to a lack of understanding of the individual specific features of the cinema and television, and the failure of historians to popularize their research. Stumbling blocks on the part of audio-visual communications specialists arise from the artistic / individual / creative documentary tradition in Lithuania which developed during the Soviet period. This tradition gave rise to attempts to transform history to conform more to the author's vision of the past than to provide information based on the latest advances of formal, academic history. By trying to consider history emotionally and subjectively, the authors of Lithuanian documentary films and programs in the period of national revival and the first years of independence (till 1993) usually failed to provide a new, individual take on the history of Lithuania; rather, they reproduced interpretations of Lithuanian history produced in the 19th and early 20th centuries.
The enhanced role of historians in the creation of Lithuanian documentary film and television is connected with changes in self-conception among audio-visual communications specialists (authors and their "supervising" critics) as well as among historians; these changes were visible by 1993. Out of this cooperation between audio-visual communications specialists and historians, there appeared works in Lithuanian audio-visual culture in which, because of the specific nature of cinematic and television methods, "neuralgic" themes in terms of historical consciousness were actualized (popularized), single-sided assessments of the past were rejected, and a history "open" to multiple viewpoints and to corrections in the future was created, thus demonstrating the problematic nature of history and more closely approaching the status of a scientific reconstruction.
The Motif of Sinful Passion and Marital Infidelity in the Novels King, Queen, Knave and Camera Obscura by V. Nabokov
Authors: Kotin Andrey
Published: October 2024

The article examines the artistic depiction of vicious passion in Vladimir Nabokov’s Russian-language novels King, Queen, Knave and Camera Obscura. The purpose of this work is to describe the stylistic and narrative mechanisms used by Nabokov to examine the roots, development and final reign of the forbidden passion that enslaves a human soul. Contrary to the common stereotype of Nabokov as a predominantly “aesthetic” writer, the texts of his works reveal a profound moral dimension. Moreover, Nabokov’s approach to the concepts of sin and virtue, ethics and aesthetics often echoes, and sometimes completely coincides with the teachings of the founders of Christian theology and asceticism (Marcus Eremita, Peter of Damascus etc.). For example, the four-step description of the evolution of sinful passion into a destructive obsession finds unconditional embodiment in the texts analysed herein. On the other hand, marital love, based on kinship of souls and mutual fidelity, stays in clear contrast to an ordinary consumer lust. A happy and harmonious marriage, understood precisely in the spiritual and personal sense, overcomes social and everyday boundaries in Nabokov’s work, definitely breaking into a transcendent dimension. This fact is all the more curious because Nabokov was never a religious person and, judging by his own words, never displayed any interest in theological matters. Consequently, the common features that unite Nabokov’s morality and metaphysics with the foundations of the Christian worldview can be seen as rooted in the universal ethical laws of human life.
The Motif of the Last Term in the Short Story of V. Rasputin A Bear Skin for Sale
Authors: Ivanova Valentina
Published: October 2024

The article analyzes the origins of the last term motif in V. Rasputin’s prose. An early short story by V. Rasputin Bearskin for Sale (1967) examines this motif from the standpoint of Christian Orthodox axiology. The analysis uses the first two editions of the short story: 1966 and 1967. The motif of the last term determines the plot of the work and reveals biblical and evangelical reminiscences that connect the story with the traditional image of the world in Russian culture, where the leading ideas are human repentance and salvation of the soul. A. N. Uzhankov’s research, which reveals the patterns of development in ancient Russian literature, explains the presence of the idea of “last times” in the minds of the ancient Russian chroniclers. V. Raspustin’s prose restores the continuity of post-1917 Russian literature with the origins of Russian literature. The story of the hunter Vasily in Bearskin for Sale reveals the psychology of human renewal, the emergence of a new attitude towards time, life, oneself and the animate in nature. Cyclic, repeated and expected time, in which a person was previously included, is replaced for him by that which is discrete, interrupted, expressed in the feeling of every moment of life as the last. A person who is ripped by sin out of harmonious coexistence with the world becomes different through an inner admission of his guilt. The motif of the last term, characteristic of the main works of V. Rasputin, the stories Money for Maria, The Last Term, Live and Remember, Farewell to Matyora is revealed from the very beginning of his literary path.
Antioxidant and Antiaging Properties of Ethanolic Ripe Sesoot Fruit Extract
Authors: Utami Sri , Sosiawan Insan , Nurul Dewi , Purnamasari Endah , Batubara Lilian , Sachrowardi Qomariyah Romadhiyani , Damayanti Ndaru Andri , Aryenti Aryenti , Dewi Intan Keumala , Nafik Said , Arrahmani Betharie Cendera , Kusuma Hanna Sari Widya , Widowati Wahyu , Utomo Herry S
Published: October 2024

Skin aging can be characterized by changes in skin, such as the appearance of wrinkles and loss of skin moisture. Some elements that might lead to cell damages and aging are free radicals through the increase of the activities of hyaluronidase and tyrosinase. Bioactive compounds found in sesoot (Garcinia picrorhiza Miq.) are known for their antioxidant properties, which may reduce excessive amounts of free radicals in the body and act as an antiaging agent by inhibiting hyaluronidase and tyrosinase activities. This study aimed to examine the antioxidant, anti-hyaluronidase, and anti-tyrosinase properties found in Ethanolic Extract Ripe Sesoot (EERS). The ethanol extract of ripe sesoot fruit obtained from LIPI, Bogor Botanical Garden was used for the antioxidant and antiaging assays conducted at PT Aretha Medika Utama in December 2016. The activity of antioxidants was measured as the Ferric Reducing Antioxidant Power (FRAP) of the EERS, while the antiaging assays were performed through the inhibition activity of hyaluronidase and tyrosinase. Results indicated that the EERS has a higher FRAP activity (17.58 μM Fe (II)/μg) than xanthone (2.54 μM Fe (II)/μg) at the highest concentration of sample of 5,000 µg/mL. The anti-hyaluronidase of the EERS exhibited lower activity (IC50 of 619.21±12.15 µg/mL) than xanthone (IC50 of 365.55±25.10 µg/mL) and the tyrosinase inhibitory assay demonstrated a lower activity of EERS (IC50 of 1060.68±12.81 µg/mL) compared to xanthone (IC50 of 218.33±9.73 µg/mL). To conclude, EERS shows antioxidant and antiaging properties.