bluuebunny/crossref_metadata_2025 huggingface dataset:
The Corelation Between Food Preferences and Nutritional Intake in Food Service at KH Mas Mansur Student Dormitory
Authors: Rizqillah Dwi Rakhmawati , Muthmainah  , Setyo Sri Rahardjo
Published: September 2024

Background
Having good nutritional knowledge is not enough to form a healthy diet in students, it needs to be supported by a good consumption environment, such as food service in dormitories. Providing healthy food and having good preferences needs to be conducted to increase students' food intake.
Objective
The purpose of this study was to see how the correlation of food preferences in the dormitory with the amount of nutrient intake in students who lived in the KH dormitory
Methods
This study used an analytic observational design with a cross sectional approach. The subjects of this study were students who lived in dormitories with a total population of 365 students. Data collection was carried out by direct interview method with a 24-hour recall form instrumen for 3 days.
Results
The results of the correlation test showed that food preferences in the dormitory were positively correlated with total energy (p=0.032) and protein (p=0.012) intake. There was no correlation between food preferences in the dormitory with intake of fat and carbohydrate.
Conclusions
The higher the students' preference for food in the dormitory, the higher their energy and protein intake. So in this case, it is important for food organizers in the dormitory to further improve food preferences in the dormitory to provide better nutritional intake for students.
3D Printed Customized Bracket Prescription: A Way Ahead
Authors: Mani Shubhangi , Manerikar Ravindra , Thorat Aishwarya
Published: September 2024

Since the late 1970s, orthodontists have mostly relied on established manufacturing corporations to produce their appliances. Orthodontics is undergoing a paradigm change from alginate imprints and plaster models to digitized intraoral scanners and three-dimensional (3D) printed models. Orthodontists may now manage their office overhead and treatment planning individually and, in many situations, become their own makers of a wide range of equipment.

Customized brackets fabricated using 3D printing technology with ideal physical attributes help move the teeth into the desired position, allowing for patient-specific application, predictable results, and reduced treatment durations. 3D printing also allows innovative bracket designs that can potentially lead to new treatment approaches and biomechanics. 3D printing technology continues to transform the patient and doctor experiences, ushering in a new era of digital treatment planning, customization, and efficiency.
Evaluation of Different Techniques of Interproximal Reapproximation and Effectiveness of Finishing Procedures on Surface Nanotopography of Enamel - An Invitro Study
Authors: Chaitra C , Patil Basanagouda C
Published: September 2024

Objectives

An in-vitro study was designed to evaluate different techniques of interproximal re-approximation and the effectiveness of finishing procedures on surface nanotopography of enamel. The aim of the study is to compare and evaluate the surface irregularities produced by interproximal reduction using Abrasive strips, Airotor burs, Mechanical and Chemical IPR techniques and the surface changes post-finishing procedure with polishing strips and the application of sealant on the reduced surface of the tooth.

Material and Methods

In this study, 50 proximal surfaces of 25 extracted premolars were considered which were divided into a control group (5 surfaces) and three experimental groups with 15 surfaces in each according to the stripping method employed (hand-held abrasive stripping using Ortho-Organizer strips, Airotor stripping using diamond bur HORICO company, number FG 166 010 and mechanical and chemical stripping using ortho organizer strip followed by 37% phosphoric acid gel) followed by finishing procedures by using polishing strips (3M Sof-Lex strips) and application of sealant (Helioseal F). All the reduced teeth samples were viewed under three-dimensional-3D non-contact optical profilometer and scanning electron microscope in Bengaluru, India.

Results

Air-rotor stripping generated more surface roughness (1.8 ± 0.14 μm) when compared with hand-held abrasive strip (0.96 ± 0.05 μm) and mechanical and chemical reduction (1.19 ± 0.11 μm) technique. Reduced tooth surface roughness in all groups after subjected to polishing, which had reduced surface roughness compared to unpolished surface. Further, application of sealant produced more smoother surface in all the groups.

Conclusion

Interproximal reduction technique carried out using abrasive strips generated less surface roughness compared to air-rotor stripping and mechanical and chemical stripping procedures. Finishing procedures on the reduced enamel surface produced the smoothest surfaces regardless of the technique and material used, making it necessary post-interproximal reduction. The combination that produced the least enamel surface roughness post-interproximal reduction in our present study was abrasive stripping using hand-held strips followed by sealant application.
PERAN WORD OF MOUTH SEBAGAI MEDIASI HUBUNGAN KUALITAS RESTORAN TERHADAP KEPUASAN KONSUMEN (KASUS STUDI PADA RESTORAN AJIB KITCHEN)
Authors: Nugraha Andhyka Tyaz , Hati Intan Mulia , Didin Fatin Saffanah
Published: September 2024

Tujuan penelitian menyelidiki pengaruh kualitas restoran terhadap kepuasan konsumen dan perilaku Word of Mouth pada Restoran Ajib Kitchen di Kota Bandar Lampung. Kualitas restoran diukur dengan skala DinEx yang terdiri dari mutu layanan, suasana lingkungan, interaksi sosial, kesehatan makanan, dan mutu makanan. Penelitian ini juga mengidentifikasi peran Word of Mouth sebagai variabel mediasi hubungan kualitas restoran dan kepuasan konsumen. Analisis dua tahap metode PLS-SEM diterapkan pada penelitian ini. Data dikumpulkan menggunakan kuesioner online Googleform dengan jumlah total responden sejumlah 110 orang pengunjung Restoran Ajib Kitchen. Hasil kami mengungkapkan bahwa hanya mutu layanan dan suasana lingkungan memiliki pengaruh langsung positif terhadap kepuasan konsumen. Selanjutnya ditemukan bukti bahwa seluruh indikator kualitas restoran secara statistik berpengaruh terhadap Word of Mouth. Hasil pengujian hubungan tidak langsung mengungkapkan bahwa Word of Mouth mampu memediasi hubungan suasana lingkungan, interaksi sosial, kesehatan makanan, dan mutu makanan terhadap kepuasan konsumen. Berdasarkan temuan ini maka disimpulkan bahwa perilaku Word of Mouth memiliki peran terhadap rasa puas konsumen.
Analysis of the Application of Distributed File Systems for Data Storage in the Field of Remote Earth Sensing
Authors: Сивцов А.В. , Суркова Н.Е.
Published: September 2024

Организация структуры хранения информации и обеспечения оперативного доступа к данным – это наиболее сложные вопросы, с которыми сталкиваются предприятия: от небольших частных организаций, до крупных государственных корпораций. Объемы информации, структура и средства хранения, а также доступ к ней, во многом зависят от рода деятельности и специфики организации. Дистанционное зондирование Земли – это наблюдение поверхности Земли наземными, авиационными и космическими средствами, оснащенными различными видами съемочной аппаратуры. Здесь преобладает графическая информация крупных объемов, для которой требуются средства как долговременного хранения, так и оперативного доступа для ее обработки. Долговременно хранить крупные объемы данных и в то же время обеспечивать к ним оперативный доступ – две абсолютно противоположные задачи, которые требуют совместного решения. Принцип работы и структура распределенной файловой системы Ceph позволяет построить объемное, быстрое и в то же время относительно недорогое хранилище данных с высоким уровнем доступности. Данное решение является гибким и универсальным.

Organizing the structure of information storage and providing rapid access to data are the most difficult issues faced by enterprises: from small private organizations to large state corporations. The volume of information structure and storage facilities, as well as access to it, largely depend on the type of activity and specifics of the organization. Remote sensing of the Earth is the observation of the Earth’s surface by ground-based, aviation and space vehicles equipped with various types of survey equipment. It is dominated by large-volume graphical information, which requires both long-term storage and operational access to process it. Long-term storage of large amounts of data and, at the same time, providing operational access to them are two completely opposite tasks that require joint solutions. The principle of operation and structure of the distributed file system allows Ceph you to build a large, fast and at the same time relatively inexpensive data storage with a high level of availability. This solution is flexible and versatile.
WAYS TO SOLVE THE PROBLEM OF CIVIL AVIATION AIRCRAFT SAFETY RELATED TO LOSS OF CONTROL IN FLIGHT. PART 1. ABOUT THE NEED FOR CHANGE APPROACHES TO CREW TRAINING
Authors: Драмшини А. , Ахрамеев В.И. , Данилевич Е.В. , Опара Ю.С. , Плаксин Д.В. , Цветков Е.С. , Швакин В.Н.
Published: September 2024

В статье рассматривается проблема безопасности полетов воздушных судов (ВС) гражданской авиации, обусловленная организационно-техническими факторами опасности действующих подходов к подготовке членов летных экипажей воздушных судов в части предупреждения непреднамеренного попадания в сложные пространственные положения, предсрывные режимы и режимы сваливания. На основе анализа статистики авиационных происшествий, опыта летных испытаний и полунатурного моделирования на пилотажных стендах даются предложения и рекомендации по снижению риска для безопасности полетов ВС гражданской авиации путем нормативной активации профилактической работы по трем основным направлениям: – организации специальной подготовки летного состава по отработке навыков ручного пилотирования для предотвращения попадания и вывода ВС из особых ситуаций (изложено в Части 1); – внедрения на тренажерах, используемых для тренировки членов экипажей, математических моделей, позволяющих адекватно моделировать динамику ВС на срывных режимах и при полетах в условиях турбулентной атмосферы, в том числе в условиях сдвига ветра (изложено в Части 1); – разработки и внедрения бортовых систем информационно-интеллектуальной поддержки экипажа (изложено в Части 2).

The article deals with the problem of flight safety of civil aviation aircraft, due to organizational and technical hazard factors of existing approaches to the training of aircrew members in terms of preventing unintentional entry into difficult spatial positions, pre-explosion modes and stall modes. Based on the analysis of accident statistics, experience of flight tests and seminatural flight simulation on simulators, suggestions and recommendations are made to reduce the risk to the safety of civil aviation aircraft by regulatory activation of preventive work in three main areas: – organization of special training of flight personnel to practice manual piloting skills to prevent the aircraft from getting into and out of LOC-I situations (Part 1); – implementation of mathematical models on simulators used for training crew members, which allow to adequately model the dynamics of aircraft in stall modes and during flights in a turbulent atmosphere, including in wind shear conditions (Part 1); – implementation of onboard information and intellectual support systems for the crew (Part 2).
Brief results of the introduction Deutzia Thunb. in the Bashkir Cis-Urals
Authors: Мурзабулатова Ф.К. , Полякова Н.В.
Published: September 2024

Приведены результаты многолетних (2007-2015 гг) наблюдений за 15 видами рода Deutzia коллекции Южно-Уральского ботанического сада-института Уфимского научного центра РАН. Дана оценка сезонного ритма развития, зимостойкости, жизнеспособности пыльцы, всхожести семян, а также приведена интегральная оценка интродукционной устойчивости изученных видов. Наиболее устойчивыми в условиях Башкирского Предуралья оказались виды секции Mesodeutzia: D. parviflora var. amurensis, D. glabrata, D. parviflora. Ежегодно они проходят полный цикл сезонного развития, цветут и плодоносят, обладают наиболее жизнеспособной пыльцой и высокой всхожестью семян; кроме того, они абсолютно зимостойки в климатических условиях Башкирского Предуралья. Это позволяет рекомендовать их для широкого применения в целях декоративного садоводства на территории Республики Башкортостан.

The results of long-term (2007-2015) observations of 15 species of the genus Deutzia from the collection of the South Ural Botanical Garden Institute of the Ufa Scientific Center of the Russian Academy of Sciences are presented. The seasonal rhythm of development, winter hardiness, pollen viability, seed germination are assessed, and an integrated assessment of the introduced resistance of the studied species is given. The most stable in the conditions of the Bashkir Cis-Urals turned out to be species of the section Mesodeutzia: D. parviflora var. amurensis, D. glabrata, D. parviflora. Every year they go through the full cycle of seasonal development, bloom and bear fruit, have the most viable pollen and high germination of seeds; in addition, they are absolutely winter-hardy in the climatic conditions of the Bashkir Cis-Urals. This allows us to recommend them for widespread use for decorative gardening in the Republic of Bashkortostan.
DIRECTIONAL CHARACTERISTICS OF IMPULSE RADIATING ANTENNA
Authors: НАУМОВ Н.Д.
Published: September 2024

Для описания направленности импульсно излучающей антенны предлагается использовать энергетический коэффициент направленного действия и отношение плотности энергии, излучаемой в течение импульса в направлении на точку наблюдения, к плотности энергии на оси антенны. Предлагаемые характеристики направленности позволяют представить зависимость средней плотности потока энергии от направления на точку наблюдения для излучателя широкополосных или сверхширокополосных импульсов в виде, аналогичном известному выражению для узкополосного импульсного излучателя. Сформулирован метод расчета введенных характеристик направленности для антенны с плоским излучающим раскрывом. В случае однородно возбужденной антенны эти характеристики найдены в явном виде для гауссова волнового пакета и модели широкополосного импульса.

Energetic directive gain and the relation of the energy density on the observation direction to the energy density on the antenna axis are proposed as directional characteristics of impulse radiating antenna. By means of these characteristics the time average of the energy fl ux density for wide-band or ultra wide-band pulse radiator can be presented in the same form as for narrow band pulse radiator. The calculation technique for these characteristics is formulated. For uniformly excited antenna these characteristics are found for Gaussian packet of waves and for the model of wide-band pulse.
EVOLUTION OF MODELS OF ATOMIC NUCLEI
Authors: Смолеговский А М
Published: September 2024

Обсуждены общие принципы моделирования атомных ядер. Рассмотрены модели атомного ядра, получившие наибольшее распостранение. Отмечено утверждение математического стиля исследований (с позиции теории матриц, теории групп и теории симметрии, адаптированных к изучению ядра) в ядерной физике в работах М.Гёпперт-Майер и Ю.П. Вигнера. Выделен вклад отечественных физиков в мировые исследования моделей ядра – Г.А. Гамова, Д.Д. Иваненко, Я.И. Френкеля, Н.Н. Боголюбова, А.Б. Мигдала и С.Т. Беляева.

General principles of modeling of atomic nuclei are discussed. The models of the atomic nucleus, which have received the greatest distribution, are considered. The assertion of the mathematical style of research (from the position of the theory of matrices, group theory and the method of symmetry adapted to the study of the nucleus) in nuclear physics was noted in the works of M. Goeppert-Mayer and Yu.P. Wigner. The contribution of Russian physicists to world studies of nuclear models is singled out: G.A. Gamov, D.D. Ivanenko, Ya.I. Frenkel, N.N. Bogolyubov, A.B. Migdal and S.T. Belyaev.
HISTORY OF THE FORMATION AND DEVELOPMENT OF THE MOLECULARKINETIC THEORY OF IDEAL GAS IN THE LIGHT OF THE DEVELOPED PHYSICAL THEORY STRUCTURE
Authors: Стерелюхин А И , Фёдоров В А
Published: September 2024

Показана возможность изучения становления и развития физического знания на основе структуры развитой физической теории. В качестве примера взято содержание темы «Молекулярно-кинетическая теория идеального газа» курса общей физики.

The possibility of studying the formation and development of physical knowledge structure developed physical theory is shows. The content of the topic of «molecular-kinetic theory of ideal gas» from the course of General Physics was taken as an example.
HISTORY OF BIOTECHNOLOGY AND INNOVATION PROJECTS DEPARTMENT
Authors: Поляков А.В. , Азопкова М.А.
Published: September 2024

Статья посвящена истории отдела биотехнологии и инновационных проектов Всероссийского научно-исследовательского института овощеводства – филиала Федерального государственного бюджетного учреждения «Федеральный научный центр овощеводства». Показаны основные направления исследований по биотехнологии и селекции овощных, бахчевых и цветочных культур. Приведены результаты научно-исследовательских работ сотрудников отдела биотехнологии и инновационных проектов. Представлены наиболее значимые научные труды по биотехнологии и селекции сельскохозяйственных культур: капусты белокочанной (Brassica oleraceae L.), моркови столовой (Daucus carota L.), огурца (Cucumis sativus L.), тыквы (Cucurbita maxima L.), чеснока озимого (Allium sativum L.), земляники садовой (Fragaria x ananassa Duch.), флокса метельчатого (Phlox paniculata L.), пеларгонии королевской (Pelargonium grandiflorum).

The article is devoted to the history of the Department of Biotechnology and Innovation Projects of All-Russian Research Institute of Vegetable Growing – branch of the Federal State Budgetary Institute “Federal Scientifi c Center for Vegetable Growing”. The main directions of investigations in biotechnology, breeding and seed production of vegetable, melon and flower crops are shown. The results of the research works of the department employees are presented. The most significant scientific papers on biotechnology, breeding and seed production of vegetable and ornamental crops are presented: white head cabbage (Brassica oleraceae L.), table carrot (Daucus carota L.), cucumber (Cucumis sativus L.), squash (Cucurbita maxima L.), garlic (Allium sativum L.), garden strawberry (Fragaria x ananassa Duch.), phlox (Phlox paniculata L.), royal pelargonium (Pelargonium grandiflorum) and some other.
Buxheimer Orgelbuch: Interpretation Issues
Authors: Кийовски О.Ю.
Published: September 2024

Статья посвящена проблемам интерпретации органной музыки XV в. на примере Буксхаймеровской органной книги (Buxheimer Orgelbuch). Сборник Buxheimer Orgelbuch представляет собой уникальный образец органного искусства середины XV века, в который вошли все существующие на тот момент формы органной музыки: инструментальные обработки светских песен (интабуляции), свободные обработки литургических песнопений (хоральные обработки), свободные инструментальные пьесы (преамбулы) и пособие по искусству голосоведения и импровизации (Fundamentum organizandi). Поскольку рекомендации по исполнению данной музыки не сохранились, многие моменты, связанные с её интерпретацией, остаются до сих пор непонятными. Цель исследования – определить и прояснить вопросы интерпретации органной музыки XV в. Для этого изучаются некоторые исполнительские указания, сохранившиеся в трактатах XV–XVII вв., и на основании анализа строения инструмента (органа) конца XIV– начала XV вв., описание которого приводит М. Преториус в трактате Syntagma musicum, делаются определённые выводы относительно особенностей исполнения.

The article is devoted to the problems of interpretation of organ music of the XV century on the example of the Buxheimer organ book (Buxheimer Orgelbuch). The Buxheimer Orgelbuch collection is a unique example of organ art from the middle of the 15th century, which includes all forms of organ music that existed at that time: instrumental compositions for secular songs (intabulation), free processions of liturgical songs (choral works), free instrumental pieces (preambles) and the manual on the art of voice and improvisation (Fundamentum organizandi). Since the recommendations on the performance of this music have not been preserved, many points related to its interpretation remain unclear to this day. The purpose of the study is to identify and clarify issues of interpretation of organ music of the 15th century. For this, some performance instructions are studied, which are preserved in treatises of the 15th–17th centuries, and based on an analysis of the structure of the instrument (organ) of the late 14th–early 15th centuries, described by M. Pretorius in the treatise Syntagma musicum, certain conclusions are drawn regarding the performance features.
Music as a Refl ection of the Sociocultural Code. Semantics and Symbolics of the Ritual-Ethnographic Complex of Circassian (Adyghe)
Authors: Гучева А.В. , Кагазежев Б.С. , Батырова М.Х.
Published: September 2024

Статья посвящена семантико-символическому анализу музыки и знаковой системы обрядово-этнографического комплекса черкесов (адыгов). Ритуальные песнопения рассматриваются в широком культурологическом контексте как часть этнографического описания обряда и как материал устной музыкальной традиции и словесности, подлежащий этномузыкологическому анализу. Положения и выводы статьи создают основу для исследований проблемы семантики и символики, а также феномена сакрального в музыкальной традиции черкесов (адыгов).

The article is devoted to the semantic and symbolic analysis of music and the sign system of the ritual and ethnographic complex of the Circassians (Adyghe). Ritual chants are considered in a wide cultural context as part of the ethnographic description of the ritual and as material of the oral musical tradition and literature, subject to ethnomusicological analysis. The provisions and conclusions of the article create the basis for researching the problem of semantics and symbolism, as well as the phenomenon of the sacred in the musical tradition of the Circassians (Adyghes).
MAGNETOELECTRIC INTERACTION IN PEROVSKITE STRUCTURES
Authors: АБДУЛЛИН А.У.
Published: September 2024

Рассмотрено магнитоэлектрическое взаимодействие в сегнето-антиферромагнетиках с орторомбической симметрией. Получены условия усиления магнитоэлектрической связи и спектр связанных магнитосегнетоэлектрических волн.

The interaction of spin and ferroelectric waves in multiferroics with an orthorhombic symmetry and antiferromagnetic long-range order has been considered. The conditions of magnetoelectric coupling enhancement and spectrum of magnetoferroelectric waves have been obtained.
MATHEMATICAL MODEL OF FUNCTIONING OF SYSTEMS OF TEMPERATURE STABILIZATION OF SOILS WITH A HORIZONTAL EVAPORATOR
Authors: ИШКОВ А.А. , АНИКИН Г.В.
Published: September 2024

В настоящей работе приведена физико-математическая модель функционирования систем температурной стабилизации грунтов с горизонтальным испарителем, которая базируется на общих гидродинамических уравнениях для массы, импульса, энергии и энтропии фиксированного объема смеси пара и жидкости.

This article presents a physical and mathematical model of the functioning of soil temperature stabilization systems with a horizontal evaporator, which is based on general hydrodynamic equations for mass, momentum, energy and entropy of a fixed volume of a mixture of steam and liquid.
EXACT SOLUTIONS OF A SYSTEM OF VISCOUS GAS EQUATIONS
Authors: КАЛИЕВ И.А. , САБИТОВА Г.С.
Published: September 2024

В статье приведены некоторые точные решения системы уравнений вязкого газа. Описаны двумерное стационарное изотермическое радиальное течение газа, двумерное стационарное изотермическое твердотельное вращение газа. Выделен один класс решений одномерной задачи истечения газа в вакуум.

The article presents some exact solutions of the system of viscous gas equations. Two-dimensional stationary isothermal radial gas flow and two-dimensional stationary isothermal solid-state gas rotation are described. One class of solutions to the one-dimensional problem of gas flow into a vacuum is identified.
ASYMPTOTIC REPRESENTATION OF A FILTRATION FIELD IN A FORMATION WITH LAYER INHOMOGENEITY
Authors: ФИЛИППОВ А И , АХМЕТОВА О В , КОВАЛЬСКИЙ А А
Published: September 2024

В статье представлено точное решение задачи о радиальной фильтрации в полубесконечных массивах, разделенных пластом с отличающимися свойствами, в пространствах изображений Лапласа-Карсона и Фурье-Бесселя. Осуществлено сопоставление коэффициентов разложения точного решения в ряд Маклорена с нулевым и первым коэффициентами асимптотического разложения, полученными ранее. Такое сопоставление дает представление о близости асимптотического и точного решений обсуждаемой задачи. Описана оригинальная процедура нахождения погранслойной (в математическом смысле) функции, позволяющей удовлетворить предельному граничному условию исходной задачи при ее асимптотическом решении.

The exact solution of the problem of radial filtration in semi-infi nite arrays separated by a layer with different properties in the Laplace-Carson and Fourier-Bessel image spaces is presented. A comparison is made of the coeffi cients of the expansion of the exact solution in the Maclaurin series with the zero and fi rst coeffi cients of the asymptotic expansion obtained earlier. This comparison gives an idea of the closeness of the asymptotic and exact solutions of the problem under discussion. An original procedure is described for fi nding a boundary-layer function (in the mathematical sense) that allows one to satisfy the limiting boundary condition of the initial problem with its asymptotic solution.
Using the Results of Remote Sensing of the Earth and Marketing Research to Ensure Food Security and Improve the Efficiency of Agro-Industrial Associations
Authors: Абрамов Н.С. , Мелехин В.Б. , Хачумов В.М.
Published: September 2024

На сегодняшний день представляется целесообразным применение дистанционного зондирования территории региона для сбора уникальной информации о его состоянии, которую невозможно получить другими общепринятыми способами. Полученная таким образом информация применима для описания как текущего социально-экономического и экологического состояния региона, так и может быть использована в прогнозе. Работа посвящена вопросам обеспечения продовольственной безопасности и повышения эффективности агропромышленных объединений в регионах. Предлагается использовать средства дистанционного зондирования Земли и маркетинговые исследования в интересах мониторинга, развития и обеспечения благополучия наблюдаемых регионов. Предложена модель максимизации прибыли крупных сельскохозяйственных комплексов, учитывающая результаты данных дистанционного зондирования Земли и маркетинговых исследований. Данный комплексный подход к получению и использованию информации из различных источников в интересах развития агропромышленных объединений и регионов в целом может быть использован в рамках цифровизации экономики России.

Today it seems expedient to use remote sensing of the region's territory to collect unique information about its state, which cannot be obtained by other generally accepted methods. The information obtained in this way is applicable to describe both the current socio-economic and ecological state of the region, and can also be used in the forecast. The work is devoted to the issues of ensuring food security and increasing the efficiency of agro-industrial associations in the regions. It is proposed to use Earth remote sensing facilities and marketing research in the interests of monitoring, development and ensuring the wellbeing of the observed regions. A model for maximizing the profit of large agricultural complexes is proposed, taking into account the results of remote sensing data of the Earth and marketing research. This comprehensive approach to obtaining and using information from various sources in the interests of the development of agro-industrial associations and regions as a whole can be used as part of the digitalization of the Russian economy.
Development and Block Diagram of a Device for Measuring Grain Moisture Based on the Capacitive Method
Authors: КУЛУЕВ Р.Р.
Published: September 2024

В статье раскрывается классификация известных методов измерения влажности. Приводятся сравнительные характеристики методов измерения влажности сыпучих материалов показали, что явным преимуществом при измерении влажности сыпучих материалов обладают прямые методы измерений, разрушающие измеряемый материал. Так же описана разработка и структурная схема устройства измерения влажности зерна на основе емкостного метода и проведены экспериментальные исследования.

The article reveals the classifi cation of known methods for measuring humidity. Comparative characteristics of methods for measuring the moisture content of bulk materials are given; they have shown that direct measurement methods that destroy the material being measured have a clear advantage in measuring the moisture content of bulk materials. The development and structural diagram of a device for measuring grain moisture based on the capacitive method are also described and experimental studies are carried out.
TRANSFORMATION OF THE SOCIOCULTURAL TRADITION OF THE BAKSAN ENLIGHTENERS IN THE EARLY WORK OF ALI SHOGENTSUKOV (TO THE 120th BIRTHDAY ANNIVERSARY)
Authors: Тхагазитов Ю.М.
Published: September 2024

Данная работа раскрывает традиции баксанских просветителей как основу взаимообусловленности «своего» и «чужого» в становлении художественного мира Али Шогенцукова. В статье автор преодолевает сугубо идеологическую интерпретацию творчества кабардинского классика и закрепляет понимание роли и функции этнических ценностей.

This work reveals the traditions of the Baksan enlightenment as the basis for the interdependence of «their own» and «alien» in the formation of the artistic world of Ali Shogentsukov. In the article the author overcomes the purely ideological interpretation of the work of the Kabardian classic and reinforces the understanding of the role and function of ethnic values.
On accelerating transformations of programs for solving the generalized Dirichlet problem
Authors: Метелица Е.А. , Штейнберг Б.Я.
Published: September 2024

В статье рассматривается цепочка преобразований программной реализации алгоритма Гаусса–Зейделя решения обобщенной двумерной задачи Дирихле уравнения Пуассона. Она дополняет прежнюю цепочку ускоряющих (в частности, распараллеливающих) преобразований этой программы. Прежняя цепочка преобразований содержала “скашивание”, “тайлинг”, “метод гиперплоскостей” и “распараллеливание”. В данной работе она дополнена преобразованиями “вынос общих подвыражений”, “вынос инвариантов цикла”, “оптимизация заголовка цикла”, “оптимизация вычисления указателей массивов”. С полученной цепочкой преобразований проведен ряд численных экспериментов на компьютере с восьмиядерным процессором. Эксперименты проводились для разных размеров тайлов. Наибольшее полученное ускорение составляет 24%. Проведен анализ полученных ускорений.

The chain of transformations in the program implementation of the Gauss–Seidel algorithm for solving the generalized two-dimensional Dirichlet problem of the Poisson equation is considered in this paper. It complements the previous chain of accelerating (in particular, parallelizing) transformations of this program. The previous chain of transformations contained “skewing”, “tiling”, “hyperplane method” and “parallelization”. In this work, it is supplemented with the transformations “removal of general subexpressions”, “removal of loop invariants”, “optimization of the loop header”, “optimization of the calculation of array pointers”. A series of numerical experiments were carried out with the resulting chain of transformations on a computer with an eight-core processor. Experiments were performed for different tile sizes. The greatest obtained acceleration is 24%. An analysis of the obtained accelerations was conducted.
Where is the Hidden Intramolecular H-bonding Vibrational Signal in the Proline Matrix IR Spectrum?
Authors: Langford James , Zhang Yuzhe , Chen Zehua , Yang Yang
Published: September 2024

The assignment of the hydrogen bonded O-H stretch vibration in the proline matrix IR spectrum has sparked controversy. Employing constrained nuclear electronic orbital methods, we provide a clear assignment that the vibrational frequency drops to near 3000 cm-1 as a result of the interplay between electronic effects, nuclear quantum effects, and matrix effects.
Toluene Hydrogenation Catalyzed by Pt Nanoparticles: Kinetically Relevant Steps, Binding Ensembles, and Temperature Effects on Turnover Rates.
Authors: Fischer Ari
Published: September 2024

Metal surfaces mediate the hydrogenation of aromatic rings in arenes, but the diversity of hydrocarbon intermediates formed has hindered conclusive identification of the predominant surface species and kinetically relevant steps. Here, kinetic data and density functional theory calculations are combined to elucidate the mechanism of toluene hydrogenation on Pt nanoparticles at temperatures where turnover rates decrease with increasing temperature (> 490 K), a behavior typical of arene hydrogenations. Concurrent measurements of site-time-yields to methylcyclohexane (MCH), the final product, and the pressures of methylcyclohexene isomers (MCHE), intermediates, reveal that partial toluene hydrogenation to MCHE isomers reaches equilibrium, with the subsequent hydrogenation of MCHE limiting MCH formation rates. MCHE concentrations decrease with increasing temperature due to their exothermic formation, resulting in a concomitant decrease in hydrogenation rates. The transitions states that mediate MCHE hydrogenation are found to form exothermically from gaseous MCHE and H2 reactants (-20 ± 20 kJ mol-1), leading to lower hydrogenation rates as temperatures increase. Kinetic barriers exist, despite the negative enthalpic barrier, due to the entropic penalties for binding and reacting MCHE isomers (-210 ± 40 J mol-1 K-1). These hydrogenation processes occur on surfaces saturated by H-adatoms and by bound methylenebenzene, which forms by abstracting benzylic H from toluene. These species bind to different Pt atom ensembles (1 and 6 Pt atoms for H and methylenebenzene, respectively), which differ from those which mediate hydrogenation (5.3 ± 0.4 Pt atoms). Multi-site kinetic models, developed using lattice statistics to rigorously account for these site requirements, are essential for interpreting reactant pressure and temperature effects. These findings underscore the need for multi-site descriptions of metal-catalyzed reactions, particularly when surface species and transition states differ in sizes, orientations, and numbers of surface contacts.
Photocyclization of Fluorinated Acetophenones Unlocks an Efficient Way to Solar Energy Storage
Authors: Maag Henning , Schmitz Matthias , Sandvoß Alexander , Mundil Domenik , Pedada Abhilash , Glaser Felix , Kerzig Christoph , Wahl Johannes Markus
Published: September 2024

The development of light-driven isomerization offers a promising avenue for energy storage applications. However, a persistent challenge lies in controlling the stability of the photoisomeric state and in catalyzing the thermal reversal effec-tively. In this work, we introduce the molecular pair ortho-methylacetophenone ⇄ benzocyclobutenol as a promising platform for long-term energy storage. To obtain an overall good performance, a trifluoromethyl group is strategically introduced. This group prevents unproductive reaction pathways during the photochemical cyclization (yield >99%), ensures stable photoisomers, and facilitates back-isomerization by critically lowering the pKa of the benzocyclobutenol scaffold. Thus, efficient reversal using simple organic bases is achieved, capitalizing on substantial rate differences for normal vs. anionic electrocyclic ring-openings. Ultimately, this discovery enables controlled heat release under ambient conditions.
Investigating the origin of Automatic Rhodopsin Modeling outliers using the microbial Gloeobacter rhodopsin as testbed
Authors: Barreiro-Lage Dario , Ledentu Vincent , D’Ascenzi Jacopo , Huix-Rotllant Miquel , Ferré Nicolas
Published: September 2024

The Automatic Rhodopsin Modeling (ARM) approach is a computational workflow devised for the automatic build up of hybrid quantum mechanics/molecular mechanics (QM/MM) models of wild-type rhodopsins and mutants, with the purpose of establish- ing trends in their photophysical and photochemical properties. Despite the success of ARM for accurately describing the visible light absorption maxima of many rhodopsins, for few cases, called outliers, it might lead to large deviations with respect to exper- iments. Applying ARM to Gloeobacter Rhodopsin (GR), a microbial rhodopsin with important applications in optogenetics, we analyze the origin of such outliers in the absorption energies obtained for GR wild-type and mutants at neutral pH, with a total root mean square deviation (RMSD) of 0.42 eV with respect to the experimen- tal GR excitation energies. Having discussed the importance and the uncertainty of one particular amino-acid pKa , namely histidine at position 87, we propose and test several modifications to the standard ARM protocol: (i) improved pKa predictions along with the consideration of several protonation microstates, (ii) attenuation of the opsin electrostatic potential at short-range, (iii) substitution of the state-average com- plete active space (CAS) electronic structure method by its state-specific approach, and (iv) complete replacement of CAS with mixed-reference spin-flip time-dependent density functional theory (MRSF-TDDFT). The best RMSD result we obtain is 0.2 eV combining the protonation of H87 and using MRSF/CAMH-B3LYP.
Delocalization error poisons the density-functional many-body expansion
Authors: Broderick Dustin , Herbert John
Published: September 2024

The many-body expansion is a fragment-based approach to large-scale quantum chemistry that partitions a single monolithic calculation into numerous, manageable subsystems. This technique is increasingly being used as a basis for fitting classical force fields to electronic structure calculations, especially for water and aqueous ions, and for machine learning. Here, we show that the many-body expansion based on semilocal density functional theory affords wild oscillations and runaway error accumulation for ion-water interactions, which is attributable to self-interaction or delocalization error in the approximate density functional. The effect is minor or negligible in small water clusters, explaining why it has not been noticed previously, but grows to catastrophic proportion in clusters that are only moderately larger. This behavior can be counteracted using hybrid functionals but only if the fraction of exact exchange is >= 50%. Other mitigation strategies including meta-generalized gradient approximations, density correction (via exchange-correlation functionals evaluated atop Hartree-Fock densities), and dielectric continuum boundary conditions do little to curtail the problematic oscillations. In contrast, energy-based screening to cull unimportant subsystems can successfully forestall divergent behavior. These results suggest that extreme caution is required when the many-body expansion is combined with density functional theory.
Large Mid-Infrared SHG Activities in Eu(II)-Based Quaternary Chalcogenides
Authors: Jana Subhendu , Gabilondo Eric , Mongkhonratanachai Machima , Zhang Yujie , Halasyamani P. Shiv , Maggard Paul
Published: September 2024

Complex metal-chalcogenides have received growing attention for second-harmonic generation (SHG) activity arising from their noncentrosymmetric structures. In this area, the impact of the Eu(II)-cation on their structures and optical properties has not been well explored. Synthetic investigations of the Eu-Ag-IV-Ch (IV = Sn or Ge; Ch = S or Se) systems have unveiled four Eu(II)-based quaternary chalcogenides exhibiting very large mid-IR SHG responses within the chemically-rich systems II-I2-IV-Ch4 and II3-I2-IV2-Ch8 (Ch = S or Se; I, II, and IV = monovalent, divalent and tetravalent cations, respectively). Their structures were characterized by single-crystal X-ray diffraction (SCXRD) methods to crystallize in noncentrosymmetric space groups, I4 ̅2m for EuAg2GeS4 (1) and I4 ̅3d for Eu3Ag2Ge2Se8 (2) Eu3Ag2Sn2Se8 (3) and Eu3Ag2Sn2S8 (4). The structures consist of body-centered arrangements of (Ge/Sn)Ch4 tetrahedra that are fully oriented and bridged by flattened AgCh4 tetrahedra into 3D networks and charge-balanced by Eu(II) cations. Their crystalline powders exhibit mid-IR (2.09 µm) SHG responses among the largest reported to date, ranging from a large ~1.9 × AGS (AgGaS2) for1, to remarkably high activities of ~1.9 for 3, ~4.7 for 2, and ~7.0 for 4 × AGS. Spin-polarized band structure calculations showed the valence and conduction band edge states stem from interactions of the Ag-to-S/Se and Ge/Sn-to-S/Se based states, respectively, with increasing contributions of the Eu(II) 4f7-based in the order of 1 < 3 < 2 < 4. Interestingly, this trend correlates with the SHG activity, suggesting a potential new relationship for understanding and attaining cutting-edge SHG properties within Eu(II)-based chalcogenides. Thus, these results unveil a deeper understanding of structure-optoelectronic/SHG property relationships.
In Silico Enabled Discovery of KAI-11101, a Preclinical DLK Inhibitor for the Treatment of Neurodegenerative Disease and Neuronal Injury
Authors: Lagiakos H. Rachel , Zou Yefen , Igawa Hideyuki , Therrien Eric , Lawrenz Morgan , Kato Mitsunori , Svensson Mats , Gray Felicia , Jensen Kristian K. , Dahlgren Markus K. , Pelletier Robert D. , Dingley Karen H. , Bell Jeffrey A. , Liu Zhijian , Jiang Yuansong , Zhou Hua , Skene Robert J. , Nie Zhe
Published: September 2024

Dual leucine zipper kinase (DLK), expressed primarily in neuronal cells, is a regulator of neuronal degeneration in response to cellular stress from chronic disease or neuronal injury. This makes it an attractive target for the treatment of neurodegenerative diseases such as Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis; and neuronal injury, such as chemotherapy induced peripheral neuropathy. Here we describe the discovery of a potent, selective, brain-penetrant DLK inhibitor, KAI-11101 (59). Throughout the program's progression, medicinal chemistry challenges such as potency, hERG inhibition, CNS penetration, CYP3A time-dependent inhibition, and kinase selectivity were overcome through the implementation of cutting-edge in silico tools. KAI-11101 displayed an excellent in vitro safety profile and showed neuroprotective properties in an ex vivo axon fragmentation assay as well as dose-dependent activity in a mouse PD model.
Stable Triphenolamine Radical Cathode with High Electron Conductivity for High-Rate Aqueous Zinc-ion Batteries
Authors: Huang Jiaxing , Li Meilin , Han Cuiping , YUAN LI
Published: September 2024

Comparing with conventional lithium-ion batteries with organic electrolyte, aqueous zinc-ion batteries with low cost, sustainable and environment-friendly organic cathodes exhibit promising potential to meet the continuously increasing demand on safe and large-scale energy storage. The representative organic cathodes, including quinoidal polycyclic aromatic hydrocarbons (PAHs) and 2,2,6,6-tetramethylpiperidinyl-N-oxyl (TEMPO) polymers, suffer from the challenging synthesis and limited theoretical specific capacity. Herein, different from PAHs and TEMPO polymers, a stable 4,4',4''-nitrilotriphenol (TPA-(OH)3) is explored as organic radical cathode material by extremely low-cost raw materials and two simple reactions. Furtherly, an open-shell TPA-O3 radical is obtained by a facile oxidation with air. Interestingly, TPA-O3 showed unexpected higher electron conductivity of 3.35×10-4 S cm-1 than the precursor (2.73×10-6 S cm-1 for TPA-(OMe)3). The nitro-like nitroxide resonance structures of TPA-O3 contribute to its high electrochemical stability during the 200-cycle cyclic voltammetry test in air and thus exhibits good reversibility when used as a cathode material. Moreover, TPA-O3 exhibit high reduction voltage of 1.02~1.33 V vs, Zn/Zn2+, stable capacities of 123.7 mAh g-1 and high-capacity retention of 95.87% after 2000 stable cycles at 5 A g−1, which is superior to previously reported organic radical cathodes.
“Informativo matinal para ahorrar tiempo”. Un noticiario alternativo con fandom propio
Authors: Cano-Orón Lorena , Gamir-Ríos José
Published: September 2024

El cómico Ángel Martín edita y presenta el Informativo matinal para ahorrar tiempo (IMPAT), un noticiario audiovisual diario de dos minutos de duración distribuido en las principales redes sociales, con una audiencia diaria de alrededor de un millón de visualizaciones. Este formato ha generado una comunidad de seguidores que expande su contenido original mediante la creación de informativos sectoriales miméticos. Este estudio analiza la agenda temática y los rasgos estilísticos del IMPAT, así como de los informativos elaborados por sus seguidores. Los resultados muestran el predominio de las soft news y de contenidos no noticiosos, así como la presencia de rasgos narrativos propios del infoentretenimiento. Los seguidores expanden el IMPAT creando informativos propios, también enfocados en soft news y con estilos similares. El IMPAT se destaca así como un noticiario alternativo en torno al cual se ha consolidado un fandom informativo propio con contenido generado por sus usuarios como prodiseñadores de noticias.
Agenda y demanda informativa sobre la guerra de Ucrania en la prensa internacional
Authors: Diez-Gracia Alba
Published: September 2024

La capacidad selectiva de las audiencias digitales, fragmentadas y multiplataforma, produce una discrepancia entre lo que los medios ofrecen como más relevante en su agenda y lo que el público prefiere consumir o compartir. Una ‘brecha de la cobertura informativa’ que se analiza en este trabajo aplicado al caso de la guerra de Ucrania en la prensa internacional. Para ello, se recogen las noticias destacadas en la portada, las más leídas por el público web y las más compartidas por los usuarios de Twitter/X de las ediciones digitales de El País (España), Público (Portugal), The Guardian (Reino Unido) y The New York Times (Estados Unidos) durante cuatro semanas de 2022. La muestra inicial (N=1680) conforma una muestra útil final (N=259) sobre el conflicto ruso-ucraniano a la que se aplica un análisis de contenido en torno a cuatro categorías: narrativa periodística, multimedia, interactividad y tratamiento tabloide. Los resultados principales indican que tres de los cuatro medios dedican menos del 25% de su portada a la guerra de Ucrania. Una cobertura de actualidad informativa, aumentada por titulares ‘gancho’, que merma conforme se aleja en el tiempo y que apenas encuentra interés en la audiencia, con datos de consumo y difusión entre el 10% y el 3%. Esta disparidad entre la selección periodística más relevante y las preferencias del público confirma la existencia de una ‘brecha’ en la cobertura informativa que refleja una audiencia que desoye el criterio de relevancia periodístico y unos medios que no logran captar su interés o atención respecto a la cobertura del conflicto.