bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS DETEKSI KECURANGAN PENYAJIAN LAPORAN KEUANGAN PERUSAHAAN PROPERTY DAN REAL ESTATE DI BURSA EFEK INDONESIA TAHUN 2018 -2019
Authors: Fadli Zahri , AW Jumiadi , Simanjuntak Arthhur
Published: December 2021

Penelitian ini bertujuan untuk untuk menguji pengaruh fraud diamond terhadap kecurangan laporan keuangan. Sampel penelitian ini adalah perusahaan properti dan real estate yang terdaftar di Bursa Efek Indonesia (BEI) periode 2017 sampai 2018. Jumlah perusahaan sebanyak 40 perusahaan dengan pengamatan selama 2 tahun. Berdasarkan metode purposive sampling, jumlah sampel adalah 80. Metode analisis data menggunakan regresi logistik. Pengumpulan data menggunakan data sekunder berupa laporan tahunan yang diunduh dari www.idx.co.id. Metode analisis data yang digunakan dalam penelitian ini adalah regresi logistik dengan bantuan SPSS 26.0. Hasil penelitian ini menunjukkan bahwa stabilitas keuangan, tekanan eksternal, target keuangan, rasio sifat industri, opini audit dan pergantian direktur tidak berpengaruh signifikan terhadap kecurangan laporan keuangan (Beneish M-Score) dengan nilai 0.649, 0.142, 0.658, 0.750, 0.999 dan 0,545 nilai signifikan.
Pengaruh Human Capital Dan Gender Terhadap Kualitas Auditor Pada Kantor Akuntan Publik Di Medan
Authors: Putra Bintang Wiratama , Kholis Azizul , Setiana Esa
Published: December 2021

Penelitian ini mengkaji tentang kualitas auditor dalam mengeluarkan opini terhadap laporan keuangan. Hasil opini yang dikeluarkan auditor dapat mempengaruhi nilai suatu perusahaan. Penelitian ini bertujuan untuk menguji hubungan Human Capital dan Gender terhadap kualitas auditor pada Kantor Akuntan Publik (KAP) di Medan.  Populasi dalam penelitian ini adalah auditor yang bekerja pada Kantor Akuntan Publik (KAP) di Medan. Dengan teknik pengumpulan data melalui keusioner diperoleh 36 sampel. Data yang diperoleh merupakan data primer pada kantor Akuntan Publik (KAP) di Medan. Variabel penelitian ini terdiri dari Kualitas Auditor sebagai variabel terikat dan Human Capital dan Gender sebagai variabel bebas. Teknik analisis data yang digunakan dalam penelitian ini adalah SMART Partial Least Square (PLS).  Hasil penelitian ini menunjukan bahwa variabel Human Capital secara partial tidak berpengaruh dan signifikan terhadap Kualitas Auditor. Variabel Gender secara partial berpengaruh dan signifikan terhadap Kualitas Auditor. Sedangkan secara simultan, Variabel Human Capital dan Gender terhadap Kualitas Auditor.  Kesimpulan penelitian ini adalah secara partial variabel Gender berpengaruh terhadap Kualitas Auditor sedangkan variabel Human Capital tidak berpengaruh dan signifikan. Variabel Human Capital dan Gender tidak berpengaruh secara simultan terhadap kualitas auditor pada Kantor Akuntan Publik (KAP) di Medan.Kata Kunci: Human Capital, Gender, Auditor Quality
PENGARUH STRUKTUR MODAL, UKURAN PERUSAHAAN , DAN LEVERAGE TERHADAP KINERJA KEUANGAN PERUSAHAAN PADA PERUSAHAAN MANUFAKTUR (Studi Kasus Perusahaan Makanan dan Minuman Yang Terdaftar Di BEI Tahun 2018-2019)
Authors: Sihombing Lusianna Juwita , Purba Erny Luxy D
Published: December 2021

Analysis of the company's financial performance needs to be done to measure the extent of the company's achievements from a financial perspective. The financial statements will show whether the company can survive in the next era. If a company experiences a minus in its finances, then the risk of going bankrupt will be greater and the fate of the company and its employees will be at stake. This study aims to examine how the effect of capital structure, firm size and leverage, either partially or simultaneously, on the financial performance of manufacturing companies of Food and Beverage Companies Listed on theIndonesia Stock Exchange in 2018-2019.The population in this study were 24 manufacturing companies listed on the Indonesia Stock Exchange for the 2018-2019 period. The sampling method used is purposive sampling, with a total sample of 17 companies, for 2018-2019 so that the research data is 34. Data collection techniques by downloading financial reports from the website www.idx.co.id. Data analysis techniques used in this study using multipleregression and hypothesis testing T test and F test. The results showed that the capital structure and size of the company have an effect on the company's financial performance, leverage has no effect on the company's financial performance, and simultaneously shows that there is an influence between capital structure, company size and leverage simultaneously on the company's financial performance.
Commissioning a Visual Legacy: Louis John Steele and Sir John Logan Campbell
Authors: Davidson-Ladd Jane
Published: December 2021

In 2017, Louis John Steele’s portrait of Sir John Logan Campbell at Kilbryde, c.1902, emerged on the auction market after over a century in private hands. It is a fascinating portrait of one Auckland’s earliest and most celebrated Pākehā citizens. The portrait is Steele’s most ambitious portrait and shows him creatively adapting the British aristocratic portrait tradition to the New Zealand context. No commissioning documents have been traced for the portrait, however a close reading of the painting alongside Campbell’s papers reveal it is filled with highly personal symbolism. The provenance of the painting is also uncovered through this research. Examination of the Kilbryde portrait with Steele’s five other portraits of Campbell demonstrates Campbell’s desire to leave a lasting visual legacy.
Making Things Right: New Zealand industrial design pioneer Peter Haythornthwaite, the quest for beauty and putting the user first
Authors: Barrett Michael
Published: December 2021

In 2018, interviewing Peter Haythornthwaite for a small contribution to the book, ‘Design Generation’1 (by Michael Smythe; published in support of an Objectspace exhibition of the industrial designer’s work), the designer ventured on to the subject of beauty and its importance to his design process. It seems fitting to start here with that idea, because while beauty’s role in design is little discussed today, Haythornthwaite saw how objects of beauty make everyday use a delight.
La violación como construcción identitaria en la escritura de Giovanna Rivero Santa Cruz
Authors: Abal Silvana Daniela
Published: December 2021

La escritura de Giovanna Rivero Santa Cruz, que ya cuenta con más de veinte años de vida, ha transitado principalmente las estéticas gótica, fantástica y erótica y ha hecho de la violencia, en sus distintas formas, su tema más revisitado. Entre las secuencias que dibuja su narrativa, la violencia sexual es la que aparece con más pregnancia, en relatos que tienen como punto nodal la violación o el abuso y que permiten problematizar las nociones de víctima, consentimiento y testimonio.La temática no es ajena a las matrices narrativas de la literatura boliviana más tradicional del siglo XX ni a los tópicos de la narrativa contemporánea, pero sí es posible afirmar, desde una perspectiva crítica de género, que los textos de Rivero, principalmente la novela Las camaleonas (2011) y el libro de cuentos Tierra fresca de su tumba (2020), elaboran órdenes de representación alternativos, que se desmarcan de los discursos heteropatriarcales y no se limitan a construir relatos trágicos sobre la violación, sino que a partir de ellos habilitan una reflexión sobre las vidas en peligro (Butler, 2017), las identidades en transición (Morini, 2015) y la creación de alianzas y de nuevos espacios habitables.
Sharia e democracia: uma análise a partir da Constituição de Medina
Authors: Kus Atilla
Published: December 2021

O retorno do Talibã ao poder no Afeganistão após vinte anos de sua erradicação pelas forças estadunidenses e da Organização das Nações Unidas trouxe consigo à tona, novamente, os debates a respeito das “leis islâmicas” e da sharia, por meio da qual ditamente os direitos humanos e a democracia estariam sob ameaça. O presente trabalho parte das inquietações do autor a respeito da compatibilidade do Islam com a democracia e tem por objetivo a exploração do tema da relação do Islam com a democracia nas suas bases históricas e da sharia. O estudo foi elaborado a partir de uma pesquisa bibliográfica baseada em textos da exegese do Alcorão e dados da História Islâmica a respeito de seus primórdios no exemplo da cidade-estado de Medina – apresentada por Enzo Pace no livro Sociologia do islã: fenômenos religiosos e lógicas sociais, publicado em 2005 – como a comunidade ideal dos muçulmanos. Conclui-se, a partir do exemplo adotado, que há uma compatibilidade entre o Islam e a democracia, assim como se constata que a sharia, diferente do que se pensa, não é um conjunto de leis, mas um conjunto de valores e princípios que inclui relação política também.
Corporate governance in state-owned enterprises. A systematic literature review: an international perspective
Authors: Miążek Radosław
Published: December 2021

Background

The state sector continues to play a significant role in the development of the global economy. Proper corporate governance is crucial to ensure the positive contribution of state-owned enterprises to the efficiency of the economy and its competitiveness. Despite the increasing importance of state-owned enterprises for the development of global gross domestic product and the quality of public services provided, research on corporate governance in state-owned enterprises is not widely represented in the world literature.

Research aims

This article provides a bibliographic analysis of the existing scientific work on corporate governance in state-owned enterprises. The aim of the analysis is to systematise the scientific output in this field, to demonstrate the scale of interest in this subject among researchers, and to indicate the predominant directions of research, taking into account their geographical origin.

Methodology

This study uses a systematic literature review.

Findings

The results of the research show that the existing scientific work in this field is insignificant in relation to the number of state-owned enterprises operating worldwide and their importance for the development of the global economy. Research by dominant research groups from the point of view of geography has shown that there is a clear variation in the dominant direction of research on corporate governance in state-owned enterprises, which is an indication of the different interests of researchers in different geographic areas. Analysing the factors underlying the differentiation just described could provide an incentive for further empirical research in this area.
Application of ImageJ Software in the assessment of flowering Intensity and growth Vigor of Pear Trees
Authors: Treder Waldemar , Klamkowski Krzysztof , Tryngiel-Gać Anna , Wójcik Katarzyna
Published: December 2021

The study evaluated the possibility of using the image acquisition and processing method with ImageJ software for estimating growth vigor and flowering intensity of ‘Conference’ pear trees. For assessing flowering intensity, manual counting of flower clusters and taking of photographs of the trees were conducted at full bloom. Tree vigor was estimated by manually measuring the total length of the central leader and shoots of individual trees. The trees were photographed from the same distance using a hand-held camera. The calibration model for assessing the vigor or flowering of trees by image analysis was based on measurements and photographs taken for nine selected trees differing in the total length of shoots or in the number of flower clusters. Then, a quality assessment of the model was carried out on 26 nonselected trees. Image processing was performed using ImageJ software. High regression coefficients were obtained between the surface area of petals measured on the photographs and the number of inflorescences counted (r2 = 0.98); however, observations carried out in the following year indicate the need for individual calibration of estimation models in each evaluation season. Subsequently, the quality of estimating the flowering intensity of pear trees was assessed using a previously determined calibration model. Mean absolute percentage error (MAPE) values ranged from 14.0% to 21.8%, depending on the measurement time. In the assessment of tree growth vigor, a high correlation (r2 = 0.98) was also obtained between the actual length of shoots measured individually for each tree and the values obtained by analyzing the photographic image, where the MAPE error was 12.9%.
(Trans-Multi)Culturally Responsive Mathematics: (Re)Creating Spaces for Loving Kindness
Authors: Raisinghani Latika
Published: December 2021

In this paper, I relive my experiences of (un)learning, (re)learning and (re)searching mathematics in multiple cultural contexts. I begin by recounting the moments of dilemma that many students encounter in various cultural contexts, which inspired me to weave the threads of (trans-multi)culturally responsive mathematics. I share this story through the narratives, poems and digital postcards that I created in my auto-ethnographical life writing of engaging in (re)learning of and with(in) mathematics. Underlying these efforts and actions is the hope that sharing these may help in creating spaces for inviting (trans-multi)culturally responsive mathematics in contemporary diversity-rich classrooms. Informed by critical and transformational multicultural education perspectives and the insights of key curriculum scholars—Aoki, Pinar, Schwab, Leggo and Noddings—a (trans-multi)culturally responsive mathematics is a calling for teachers to acknowledge mathematics as a human endeavour. It is an initiation to invite student’s lived experiences and multiple ways of knowing in mathematics classrooms with relational caring and loving kindness. Aiming to educate diverse students in a socially-just manner, a (trans-multi)culturally responsive mathematics urges teachers to embrace wholistic teaching that not only focuses on the mind and body, but also strives for educating the heart and spirit. Thus, it is an ethical, intellectual, political and relational inquiry, which critically engages students with mathematics to discover what knowledge is most worth within and beyond the boundaries of classroom(s) and thereby empowers them to co-create mathematics that is living.
Falling Towers: A Letter to my Child’s Teacher
Authors: Sameshima Pauline
Published: December 2021

Using the epistolary genre, this editorial is embedded in a fictional letter written to a teacher. The discussion is spurred by a teacher writing a mark in bold felt pen directly on a student’s drawing of the Eiffel Tower. This reflexive inquiry laments the deep wounding of the joy of learning by metrics, measurements and efficiency, while registering the imperative to change this path. Using the metaphor of the “tower” to theorize current damaging curricular practices, this editorial questions how, amidst the uncontrol and fear in a global pandemic, the challenging truths of unmarked graves, devastating climate disasters, global food insecurity, among other sufferings, teachers can imagine hope-inspired, healing-centred pedagogies and ”assertive mutuality . . . [through] co-action, interconnection . . . [and] the capacity to act and implement as opposed to the ability to control others” (Kreisberg, 1992, p. 86). The task of recognizing, naming and dismantling towers—in essence, leaving one’s home, and building new relational frames, while the world is falling—requires extraordinary hope, as shown in the articles in this issue.
Fault Type Classification of 150 kV Transmission Line using Wavelet Multi-Resolution Analysis Method
Authors: Novizon Novizon , Syahri Nurfi , Wulandari Silvia , Septiyeni Tesya Uldira , Putri Rahadian Asneli
Published: December 2021

To identify the fault, wavelet method is used in solving complex protection problems. This study uses a new approach, namely the wavelet multi resolution analysis method with its application where multi resolution analysis works to analyze signals at different frequencies with the same resolution. In this study, the classification of fault types that occur in the 150 kV transmission line quickly and accurately is carried out using the wavelet multi resolution analysis method. This research is included in applied research and was designed using computer simulation software, namely ATP and MATLAB. The data transmission system used is the Maninjau Hydroelectric Power Plant transmission line to Pauh Limo Substation. The modeled transmission system is given 1-phase to ground, 2-phase to ground, 2- phase, 3-phase and lightning faults. To determine the accuracy of this classification, the fault is varied according to the distance and impedance of the disturbance. From the analysis of the simulation results and calculations, based on the wavelet multi resolution analysis method used in fault classifying, the average value of the approximation coefficient used to classify the type of fault is obtained. Based on the results of the study, it can be said that all types of fault analyzed in this study have met the classification requirements using the wavelet multi resolution analysis method
Real-Time SoC Estimation for Li-Ion Batteries using Kalman Filter based on SBC Raspberry-Pi
Authors: Zaini Zaini , Harfina Dwi Mutiara , Iswar Agung P
Published: December 2021

Measurement of electric charge on the battery in real-time cannot be separated from external noise and disturbances such as temperature and interference. An optimal State of Charge (SoC) estimator model is needed to make the estimation more accurate. To obtain the model, the battery was tested under room temperature conditions and at a temperature of 40oC to obtain a second-order RC model for the Li-Ion battery used. Based on the test data obtained, the data will be tested first using the Kalman Filter method to get an estimate of the State of Charge (SoC). Tests were carried out using MATLAB software. After the method was tested, the online SoC Estimator design began using the Raspberry Pi Single Board Computer (SBC). After that, the estimator will be tested first using data from offline measurements and then used in real-time (online) SoC estimation measurements. The Voc before the battery discharge test was 13.16 V and after the test, the measured Voc was 11.58 V. During the discharge the Voc was reduced by 1.58 V. While the discharge data from the battery manufacturer showed the reduced Voc during the discharge was 1.2V.
Implementation of the alternative form of social service “foster home or senior citizens” in Irkutsk Region: empirical study of the problem
Authors: Zimina Ekaterina Viktorovna , Sedykh Ol'ga Gennad'evna
Published: December 2021

The object of this research is the senior citizens, who are the objects of close attention of the corresponding government bodies, institutions of social and medical care, nonprofit organizations, and social entrepreneurs. It is revealed that despite joint efforts of the government and society aimed at maintaining the quality of their lives, senior citizens, for various reasons, often find themselves lonely, deprived of the care of their families. Therefore, the subject of this research is the alternative form of social service for senior citizens – foster home. The article examines the social, economic, psychological, and sociological aspects of implementation of such service. Special attention is given to the concept of foster home for senior citizens, as a form of organization of life, which implies sharing living space and household of citizens who concluded a foster home agreement. The article explores such aspects as the procedure for creating foster families, basic statistical data, regional peculiarities, social and economic effectiveness. The studied indicators reveal the factors that impede the creation of more foster homes. The authors’ special contribution lies in systematization of the key indicators of social effectiveness of foster homes: improvement of psychological state of senior citizens, mending family relationships, joint overcoming of different household problems, mutual respect and help, living in a home environment, and revival of the traditions of family and community care for older generation.
Contact modeling across scales: from materials to structural dynamics applications.
Authors: Brake M.R.W.
Published: December 2021

The study of contact is an engineering pursuit that spans multiple disciplines and scales. Structural dynamics, as well as aspects of nonlinear dynamics and vibrations, is concerned with contact in systems at the macroscale. At the microscale, tribology is concerned with the evolution of two surfaces in contact in terms of frictional and wear behavior. Between these two scales, solid mechanics investigates the development of stresses within two bodies due to contact through elasticity and plasticity solutions (amongst other methods). Lastly, contact research within material science investigates the interaction of grains and the evolution of a material's structure due to impact and other damaging events. These four fields, structural dynamics, solid mechanics, tribology, and material science, are traditionally separate even though they are each concerned with interfaces and the contact of two bodies. By integrating all four fields, new opportunities for advancing the understanding of contact emerge. In this paper, open challenges and potential paths forward for future directions in contact-based research is discussed.
VIII ALL-RUSSIAN CONFERENCE ON ATMOSPHERIC ELECTRICITY
Authors: Фирстов П.П. , Козлов В.И. , Малкин Е.И.
Published: December 2021

С 23 по 27 сентября 2019 г. в г. Нальчик состоялась VIII Всероссийская конференция по атмосферному электричеству. Конференция была организована Российской академией наук, Военно-космической академией имени А.Ф. Можайского (ВКА им. А.Ф. Можайского) и Высокогорным геофизическим институтом Росгидромета (ВГИ). В данной статье описана работа конференции и приведены некоторые положения из решения конференции.

From September 23 to September 27, 2019, the VIII All-Russian Conference on Atmospheric Electricity was held in Nalchik. The conference was organized by the Russian Academy of Sciences, the A.F. Mozhaisk (All-Russian Academy of Sciences named after AF Mozhaisk) and the High Mountain Geophysical Institute of Roshydromet (VGI). This article describes the work of the conference and some of the provisions of the conference decision.
ESTIMATION OF LONG-RANGE CORRELATION SCALES BY SEISMOACOUSTIC EMISSION SIGNALS OF NEAR-SURFACE SEDIMENTARY ROCKS IN KAMCHATKA
Authors: Сычёв В.Н. , Мищенко М.А. , Имашев С.А. , Чешев М.Е.
Published: December 2021

На Камчатке в пункте комплексных геофизических наблюдений ИКИР ДВО РАН Карымшина для регистрации сигналов сейсмоакустической эмиссии на поверхности земли установлен измерительный комплекс. В качестве датчика сигналов используется трехкомпонентный пьезокерамический сейсмоприемник, который регистрирует колебательное ускорение в частотном диапазоне 0.5-400 Гц. Рассмотрен сейсмоакустический отклик на несколько региональных землетрясений с энергетическим классом Ks 11:0 в период 2017-2018 гг. При помощи статистических методов установлено самоподобие их структуры на ограниченном интервале временных масштабов. Это, в свою очередь, указывает на наличие дальних корреляций в рассматриваемой системе и позволяет получить оценку масштабов корреляций.

A measurement complex is installed on the ground surface at Karymshina complex geophysical observation site of IKIR FEB RAS (Kamchatka) to record seismoacoustic emission signals. A three-component piezoceramic seismic receiver, which records oscillatory acceleration in the frequency range from 0.2 to 400 Hz, is used as the signal sensor. A series of seismoacoustic responses on regional earthquakes of 2017-2018 with the energy class Ks 11:0 has been considered. Self-similarity of their structures has been established in a limited interval of time scales by statistical methods. That, in its turn, indicates the presence of long-range correlations in the system under consideration and allows one to estimate correlation scales.
A PRIORI ESTIMATION OF A GENERALIZED NONLOCAL BOUNDARY VALUE PROBLEM FOR A THRID ORDER EQUATION WITH A FRACTIONAL TIME CAPUTO DERIVATIVE
Authors: Шхагапсоев А.М.
Published: December 2021

Рассматривается краевая задача для уравнения третьего порядка параболического типа с дробной производной Капуто. Методом энергетических неравенств получена априорная оценка решения обобщенной нелокальной краевой задачи для уравнения с кратными характеристиками с дробной производной Капуто по времени.

A boundary value problem for a third-order parabolic equation with a fractional Caputo derivative is considered. A priori estimation of the solution of a generalized nonlocal boundary value problem for an equation with multiple characteristics with a fractional Caputo derivative in time is obtained by the method of energy inequalities.
DEPENDENCE OF THE MAGNETIC FIELD GENERATION MODELS OF IN MODEL OF A αΩ-DYNAMO ON THE INTENSITY OF A POWER TYPE α GENERATOR
Authors: Годомская А.Н. , Шереметьева О.В.
Published: December 2021

В динамической модели -динамо с переменной интенсивностью -генератора моделируются инверсии магнитного поля. Изменение интенсивности -генератора как следствие синхронизации высших мод поля скоростей и магнитного поля регулируется функцией Z(t) со степенным ядром. Получены режимы динамо для двух видов радиальной составляющей в скалярной параметризации -эффекта. Проведён анализ результатов в зависимости от изменения показателя степени ядра функции Z(t), а также сравнительный анализ с результатами исследования 10, где использовано показательное ядро функциии Z(t).

In the dynamic model -dimensions are simulated reversions of the magnetic field with a varying intensity of the -generator. The change of the -generator intensity as a result of synchronization of higher modes of the velocity field and the magnetic field is regulated by a function Z(t) with a power kernel. Dynamo modes are obtained for two types of radial component in the scalar parameterization of the -effect. The results were analyzed depending on the change in the exponent of the kernel of the function Z(t), also a comparative analysis with the results of the study 10, where the exponential kernel of the function Z(t) was used.
SIMULATION MODELING OF INVOLUNTARY HUMAN MOVEMENTS
Authors: Горбунов Д.В. , Гавриленко Т.В.
Published: December 2021

Разработана математическая и симуляционная модель для моделирования биомеханических движений конечности человека. Разработанный алгоритм модели базируется на биологическом представлении о включении и выключении в процессе удержания положения конечности отдельных мышц или их групп. Работа модели осуществляется за счет генерации случайных чисел (в математической форме симмуляционной модели отсутствуют статические величины). Сравнительный анализ экспериментальных и модельных данных показывает высокую эффективность работы симуляционной модели. Созданная симуляционная модель позволяет изучать принципы работы нервно-мышечной системы. Также модель является масштабируемой, что позволит в дальнейшем перейти к трехмерному моделированию для изучения механизмов самоорганизации биосистемы на уровне и нервно-мышечной системы, и центральной нервной системы.

Mathematical and simulation model has been developed for modeling the biomechanical movements of a human limb. The developed model algorithm is based on the biological presentation and shutdown in the process of maintaining the positions of the final individual muscles or their groups. Work in models is due to statistical values. A comparative analysis of experimental and model data shows the high efficiency of the simulation model. The created simulation model allows to study the principles of the neuromuscular system. This model is scalable, which will allow us to switch to three-dimensional modeling to study the signs of self-organization of biosystems at the level of the neuromuscular system and central nervous system.
О НЕКОТОРЫХ НОВЫХ ТЕОРЕМАХ ДЕКОМПОЗИЦИИ АНАЛИТИЧЕСКИХ МУЛЬТИФУНКЦИНАЛЬНЫХ ПРОСТРАНСТВ ГЕРЦА И БЕРГМАНА В ЕДИНИЧНОМ ШАРЕ И В ОГРАНИЧЕННЫХ ПСЕВДОВЫПУКЛЫХ ОБЛАСТЯХ В Cn
Authors: Tomashevskaya E.B. , Shamoyan R.F.
Published: December 2021

Under certain integral condition which vanishes in onefunctional case we provide new sharp decomposition theorems for multifunctional Herz and Bergman spaces in the unit ball and pseudoconvex domains expanding known results from the unit ball. Our theorems extend also in various directions some known theorems on atomic decompositions of onefunctional Bergman spaces in the unit ball and in bounded pseudoconvex domains.

Приведены новые теоремы декомпозиции для аналитических многофункциональных пространств Герца и Бергмана в единичном шаре и в ограниченных строго псевдовыпуклых областях в Cn, обобщающие некоторые ранее известные результаты для многофункциональных аналитических пространств Бергмана. Эти теоремы также обобщают в различных направлениях некоторые известные ранее результаты об атомическом разложении классических аналитических однофункциональных пространств Бергмана в единичном шаре и в ограниченных псевдовыпуклых областях в Cn.
ON THE METHODOLOGY APPLICATION OF MODERN COMPUTING TECHNOLOGIES IN STUDYING THE THEORY OF NUMBERS
Authors: Горюшкин А.П.
Published: December 2021

Обсуждаются проблемы, связанные с компьютерным поиском псевдопростых чисел. Предлагаются новые машинные способы быстрого поиска псевдопростых чисел Кармайкла-Черника с использованием пакета символьных математических вычислений Maple.

The problems associated with the computer search for pseudo-simple numbers are discussed. New machine methods are proposed to quickly find Carmichael-Chernick numbers using the Maple symbolic mathematical computation package.
Numerical solution of a boundary value problem for a loaded parabolic equation with nonlocal boundary conditions
Authors: Абдуллаев В.М.
Published: December 2021

В работе с использованием метода прямых исследуется численное решение краевой задачи относительно нагруженного параболического уравнения с нелокальными краевыми условиями. Получены расчетные формулы и приводится алгоритм для решения задачи. Приведены результаты численного решения двух тестовых задач, иллюстрирующие эффективность предложенного подхода

In the work, we propose a numerical method of solution to the boundary-value problem with respect to the loaded parabolic equation with nonlocal boundary conditions. We have obtained formulas and derived an algorithm for the solution of the problem. We provide the results of numerical solution to two test problems, which illustrates the efficiency of the approach proposed.
The main components of a vocational education teacher of mathematics
Authors: Эргашев А.А. , Толибжонова Ш.А.
Published: December 2021

Приведены различные подходы к выявлению основных понятий, связанных с профессиональным педагогическим образованием. Показаны пути повышения профессионализма педагогических кадров. Материалы статьи можно применять при подготовке будущего учителя математики на основе инновационного подхода к обучению.

Various approaches to the identification of basic concepts related to professional teacher education are presented. Shown are ways to develop the professionalism of teaching staff. The materials of the article can be used in preparing the future mathematics teacher based on an innovative approach to teach them.
Boundary problem on semi-direct for pseudoparabolic equation with a small parametr
Authors: Аблабеков Б.С. , Муканбетова А.Т.
Published: December 2021

Данная статья посвящена построению классического решения краевой задачи на полупрямой для линейного псевдопараболического уравнения с малым параметром. Для построения явного решения используется метод преобразование Фурье. В работе исследуется вопрос об однозначной разрешимости начально-краевой задачи для псевдопараболического уравнения с малым параметром на полуоси. Получено явное аналитическое решение поставленной задачи.

In this paper, we study the question of the unique solvability of the initial-boundary-value problem for a pseudoparabolic equation with a small parameter on the semi-axis. An explicit analytical solution to the problem is obtained.
Bulletin KRASEC. Physical and Mathematical Sciences. Results for 10 years and development prospects
Authors: Паровик Р.И.
Published: December 2021

4 августа 2020 г исполнилось 10 лет научному рецензируемому журналу «Вестник КРАУНЦ. Физико-математические науки». В этом сообщении приводятся некоторые статистические данные о журнале в этот период

On August 4, 2020, the scientific peer-reviewed journal Bulletin KRASEC. Physical and Mathematical Sciences celebrated its 10th anniversary. This post provides some statistics about the journal during this period.
Некоммутативная задача Ландау о фазовом пространстве при наличии минимальной длины
Authors: Dossa F.A. , Koumagnon J.T. , Hounguevou J.V. , Avossevou G.Y.H.
Published: December 2021

The deformed Landau problem under a electromagnetic field is studied, where the Heisenberg algebra is constructed in detail in non-commutative phase space in the presence of a minimal length. We show that, in the presence of a minimal length, the momentum space is more practical to solve any problem of eigenvalues. From the Nikiforov-Uvarov method, the energy eigenvalues are obtained and the corresponding wave functions are expressed in terms of hypergeometric functions. The fortuitous degeneration observed in the spectrum shows that the formulation of the minimal length complements that of the non-commutative phase space.

Изучается деформированная задача Ландау в электромагнитном поле, в которой алгебра Гейзенберга подробно строится в некоммутативном фазовом пространстве при наличии минимальной длины. Мы показываем, что при наличии минимальной длины импульсное пространство более практично для решения любой проблемы собственных значений. С помощью метода Никифорова-Уварова получаются собственные значения энергии, а соответствующие волновые функции выражаются через гипергеометрические функции. Случайное вырождение, наблюдаемое в спектре, показывает, что формулировка минимальной длины дополняет формулировку некоммутативного фазового пространства.
Non-local problem with integral conditions for the three-dimensional high order hyperbolic equations
Authors: Юсубов Ш.Ш.
Published: December 2021

В работе для трехмерного гиперболического уравнения высокого порядка с доминирующей смешанной производной исследуется разрешимость нелокальной задачи с интегральными условиями. Поставленная задача сводится к интегральному уравнению и с помощью априорных оценок доказывается существование единственного решения.

In the work the solvability of the non-local problem with integral conditions is investigated for the three-dimensional high order hyperbolic equation with dominated mixed derivative. The problem is reduced to the integral equation and existence of the solution is proved by the help of aprior estimations.
On a boundary value problem for a mixed equation with three planes of type change in an infinite prismatic domain
Authors: Исломов Б.И. , Умарова Г.Б.
Published: December 2021

В данной работе в бесконечной призматической области формулируется и изучается одна задача для параболо-гиперболического уравнения c тремя плоскостями изменения типа. Основным методам исследования поставленной задачи является преобразование Фурье. Доказана единственность и существование решения поставленной задачи

In this paper, in an infinite prismatic domain, one problem is formulated and studied for a parabolic-hyperbolic equation with three planes of type change. The main methods for studying the problem posed is the Fourier transform. The uniqueness and existence of a solution to the problem is proved.
Влияние температуры окружающей среды на показания гамма-сцинтилляционного детектора
Authors: Yeboah E. , Smirnov S.V. , Yakovlev G.A.
Published: December 2021

Scintillation detectors, which are widely used in environmental field study for measurement of radiation dose, are devices that experience wide range of temperature changes when in use. One of the characteristic of scintillation detectors are that, they are very sensitive to change in temperature and hence, every scintillation detector have temperature stabilization inside them. The temperature-dependence coefficient which is part of the detector calculation is the simplest stabilization method that is used. In this work, the BDKG-03 scintillation detector which is used to measure gamma radiation was operated under a controlled condition using a climatic chamber. The BDKG-03 scintillation detector has a temperature stabilizing built-in algorithm. The dose rate and count rate of the gamma background radiation for different temperatures ranging from -40 – +40 °C in increment of 10 °C were measured and studied. The main aim of this work was to study the effect of different ranges of temperature for subsequent calculation of temperature correction coefficient. An analytical result from the experimental result shows that dose rate measurement using the built-in algorithm gives a precise reading as temperature increases. The temperature correction coefficient was found based on dependence.

Сцинтилляционные детекторы широко используются в исследованиях окружающей среды для измерения дозы облучения и представляют собой устройства, которые используются в широком диапазоне температур. Одной из характеристик сцинтилляционных детекторов является чувствительность к изменениям температуры, и, следовательно, каждый сцинтилляционный детектор имеет встроенный алгоритм температурной стабилизации. Коэффициент температурной зависимости, который является частью автоматических расчетов детектора, представляет собой простейший метод стабилизации. В данной работе сцинтилляционный детектор БДКГ-03, используемый для измерения гамма-излучения, работал в контролируемых условиях с использованием климатической камеры. Сцинтилляционный детектор БДКГ-03 имеет встроенный заводской алгоритм стабилизации температуры. Были измерены и исследованы мощность дозы и скорость счета фонового гамма-излучения для различных температур от -40 до +40 °C с шагом в 10 °C. Основной целью данной работы было изучение влияния различных диапазонов температур для последующего расчета температурного поправочного коэффициента. Результат эксперимента показывает, что измерение мощности дозы с использованием встроенного алгоритма дает более точные показания в верхнем диапазоне рабочих температур.
The Keldysh problem for a mixed-type three-dimensional equation with three singular coefficients
Authors: Каримов К.Т.
Published: December 2021

В данной статье изучена задача Келдыша для трехмерного уравнения смешанного типа с тремя сингулярными коэффициентами в прямоугольном параллелепипеде. На основании свойства полноты систем собственных функций двух одномерных спектральных задач, доказана теорема единственности. Решение поставленной задачи построено в виде суммы двойного ряда Фурье-Бесселя.

In this article, we study the Keldysh problem for a three-dimensional mixed-type equation with three singular coefficients in a rectangular parallelepiped. Based on the completeness property of systems of eigenfunctions of two one-dimensional spectral problems, a uniqueness theorem is proved. The solution to the problem posed is constructed as the sum of a double Fourier-Bessel series.
Об одной задаче управляемости и преследования в линейных дискретных системах
Authors: Sotvoldiyev A.I.
Published: December 2021

In this paper, it is considered linear discrete control and pursuit game problems. Control vectors are subjected to total constraints those are a discrete analogue of the integral constraints. Necessary and sufficient conditions of solvability of the 0-controllability problem are obtained. The connection between 0-controllability and solvability of the pursuit problem is studied.

В статье рассмотрена линейные дискретные игровые задачи управления и преследования. На векторы управления накладываются полные ограничения, которые являются дискретным аналогом интегральных ограничений. Получены необходимые и достаточные условия разрешимости проблемы 0-управляемости. Изучается связь между 0-управляемостью и разрешимостью задачи преследования.
Analysis of the possibility of using Russian geomagnetic stations to calculate the analogue of the Dst-index
Authors: Мочалов В.А. , Мочалова А.В.
Published: December 2021

В работе анализируется возможность построения аналога Dst-индекса по данным с российских геомагнитных обсерваторий. Проводится сравнительный анализ значений Dst-индекса, вычисленного классическим способом (по данным с 4 приэкваториальных станций: Hermanus, Kakioka, Honolulu и San Juan), со значениями Dst-индекса, посчитанного по данным исключительно с Российских станций.

The paper analyzes the possibility of constructing an analogue of the Dst index using data from Russian geomagnetic observatories. A comparative analysis of the values of the Dstindex calculated by the classical method (according to data from 4 near-equatorial stations: Hermanus, Kakioka, Honolulu and San Juan) with the values of the Dst-index calculated according to data exclusively from Russian stations is carried out.
On the definition of a time-dependent lower coefficient in a third-order hyperbolic equation
Authors: Аблабеков Б.С. , Жороев А.К.
Published: December 2021

В работе рассматривается обратная задача для гиперболического уравнения третьего порядка. Ставится обратная задача, состоящая в определении неизвестного коэффициента, зависящего от времени. В качестве дополнительной информации для решения обратной задачи задаются значения решения задачи во внутренней точке. Доказывается теорема существования и единственности решения обратной задачи. Доказательство основано на выводе нелинейной системы интегральных уравнений типа Вольтерра второго рода и доказательстве его разрешимости.

The paper deals with an inverse problem for a hyperbolic equation of the third order. An inverse problem is posed, which consists in determining an unknown coefficient that depends on time. As additional information for solving the inverse problem, we set the values of the solution to the problem at an interior point, and prove the existence and uniqueness theorem for the solution of the inverse problem. The proof is based on the derivation of a nonlinear system of integral equations of the Volterra type of the second kind and the proof of its solvability.
Особенности скорости выхода радона из грунта в приземную атмосферу
Authors: Yakovlev G.A. , Yakovleva V.S.
Published: December 2021

The paper presents the results of the analysis of long-term series of monitoring data on the radon flux density. They were produced using a accumulation chamber of our own design, which allows, in terms of the readings of alpha radiation counters, to obtain the values of the radon flux density. The main results and the most illustrative examples of the behavior of the investigated characteristic of radon are present in the work. As a result, conclusions were drawn about the features of radon release rate from the soil into the surface atmosphere at different time scales and under different meteorological conditions, which can be used in the future to monitor the radon flux density using ionizing radiation detectors, and is also fundamental for the development new models.

В работе представлены результаты анализа многолетних рядов данных мониторинга плотности потока радона. Они производились с помощью накопительной камеры собственной разработки позволяющей в пересчете с показаний счетчиков альфа излучения получить значения плотности потока радона. В работе освещены основные результаты и наиболее показательные примеры поведения исследованной характеристики радона. В результате были сделаны выводы об особенностях скорости выхода радона из грунта в приземную атмосферу на различных масштабах времени и при различных метеорологических условиях, что может быть использовано в дальнейшем с целью мониторинга плотности потока радона при помощи детекторов ионизирующего излучения, а также несет фундаметальный характер для разработки новых моделей.
Using deep learning neural network model to solve the problems of classification of unwanted content in social media
Authors: Бобин А.С.
Published: December 2021

При решении задач классификации с использование глубокого обучения сталкиваются с проблемой сходимости модели. Такая проблема возникает из за ограниченного объема данных в выборках.

When solving classification problems using deep learning, they face the problem of model convergence. This problem occurs due to the limited amount of data in the samples.
The feature of P- and S-waves propagation inside the inner G-core of the Earth
Authors: Кузнецов В.В.
Published: December 2021

В статье приводится объяснение причины, почему скорости P- и S-волн во внутреннем ядре Земли не возрастают по мере приближения к центру ядра, как им положено при увеличении плотности и внешнего давления. Причина может состоять только в том, что вещество внутреннего ядра Земли находится в состоянии квантовой сцепленности, которое возникло при образовании Земли. Оно исчезнет сразу после того, как закончится период Брюнеса, при этом прекратится существование геомагнитного поля.

The article explains why despite the increasing density and external pressure the velocities of P-and S-waves do not increase as they approach the center of the inner G-core of the Earth. The reason can only be that the matter of the inner core of the Earth is in a state of quantum entanglement, which arose at the formation of the Earth and will disappear immediately after the end of the Brunhes chron when the geomagnetic field disappears.
TeachOpenCADD 2021: Open Source and FAIR Python Pipelines to Assist in Structural Bioinformatics and Cheminformatics Research
Authors: Sydow Dominique , Rodríguez-Guerra Jaime , Kimber Talia B. , Schaller David , Taylor Corey J. , Chen Yonghui , Leja Mareike , Misra Sakshi , Wichmann Michele , Ariamajd Armin , Volkamer Andrea
Published: December 2021

Computational pipelines have become a crucial part of modern drug discovery campaigns. Setting up and maintaining such pipelines, however, can be challenging and time-consuming --- especially for novice scientists in this domain. TeachOpenCADD is a platform that aims to teach domain-specific skills and to provide pipeline templates as starting points for research projects. We offer Python-based solutions for common tasks in cheminformatics and structural bioinformatics in the form of Jupyter notebooks and based on open source resources only. Including the 12 newly released additions, TeachOpenCADD now contains 22 notebooks that each cover both theoretical background as well as hands-on programming. To promote reproducible and reusable research, we apply software best practices to our notebooks such as testing with an automated continuous integration and adhering to a more idiomatic Python style. The new TeachOpenCADD website is available at https://projects.volkamerlab.org/teachopencadd and all code is deposited on GitHub.
Synthesis and styrene copolymerization of novel phenoxy and benzyloxy ring-substituted tert-butyl phenylcyanoacrylates
Authors: Reddy Divya , Schmitt Sierra S. , Sevald Paige E. , Simic Teodora , Torres Reyes Catalina S. , Yadav Daya K. , Rocus Sara , Schjerven William S. , Kharas Gregory
Published: December 2021

Novel phenoxy and benzyloxy ring-substituted tert-butyl phenylcyanoacrylates, RPhCH=C(CN)CO2C(CH3)3 (where R is 3-phenoxy, 3-(4-chlorophenoxy), 3-(4-methoxyphenoxy), 3-(4-methylphenoxy), 2-benzyloxy, 3-benzyloxy) were prepared and copolymerized with styrene. The acrylates were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and tret-butyl cyanoacetate, and characterized by CHN analysis, IR, 1H and 13C NMR. All the ethylenes were copolymerized with styrene in solution with radical initiation at 70C. The compositions of the copolymers were calculated from nitrogen analysis.