bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Bullying Terhadap Kepercayaan Diri Siswa di SD Se-Kecamatan Tobelo Tengah Kabupaten Halmahera Utara
Authors: Petrus Jerizal , Stenlly J. Patalatu  , Jerizal Petrus  
Published: October 2021

Abstrac
"The Effect of Bullying Against Student Confidence in elementary school in the Middle Tobelo District of North Halmahera Regency". The purpose of this study was to determine: The effect of bullying on student confidence in elementary schools in Central Tobelo District. The method used in this study is a quantitative method with a population of all students in elementary schools in North Tobelo Tengah District of North Halmahera with a sample of 100 students. Data collection using bullying scale and confidence and analyzed using simple regression analysis through the application of SPSS version 20. The results of this study indicate that bullying has a negative and significant effect on self confidence seen from the t test where t count = -5,570 <t.table = 1,984 while to determine the size of the contribution can be seen in the Determination Coefficient Test, where the contribution of bullying variables to confidence is 24% and other factors by 76%. Thus the results of the hypothesis test that H0 is rejected and Ha is accepted, this test statistically proves that bullying can affect student confidence in elementary schools throughout Central Tobelo District.
Pemberdayaan UMKM Dan Mentoring Teknologi Produk Olahan Nanas Di Desa Babadan Kecamatan Ngancar Kabupaten Kediri
Authors: Helilusiatiningsih Nunuk , Astoko Endro Puji , Winahyu Nastiti , Shobirin Rizky Arief , Irawati Titik 
Published: October 2021

Tanaman nanas tumbuh subur dan merupakan sentra produksi di Kecamatan Ngancar, yang terdiri 4 desa yaitu Babadan, Besali, Jagul, Kunjang Kabupaten Kediri. Permasalahan yang ada yaitu pemasaran buah dalam bentuk segardan belum dikenal teknologi pasca panen dan pengolahan nanas menjadi produk yang awet disimpan. Tujuan kegiatan untuk coaching dan mentoring teknologi pengolahan nanas kepada kelompok PKK mandiri Desa Babadan Kecamatan Ngancar, Kabupaten Kediri. Metode Pelaksanaan yaitu Pembinaan dan sosialisasi tentang pentingnya ilmu teknologi pasca panen olahan buah nanas menjadi produk yang disukai konsumen dan dapat meningkatkan nilai ekonomi masyarakat petani nanas juga. .Waktu Pelaksanaan selama 4 hari mulai tanggal 18 Agustus sampai 21 Agustus 2021 di Balai Desa Babadan , Kec. Ngancar Kediri diikuti .peserta 20 orang. Hasil kegiatan yang dicapai adalah target jangka pendek yaitu petani mempelajari dan memahami ilmu teknologi pasca panen dan olahan buah nanas segar menjadi sari buah nanas, selai nanas, dodol nanas. Target jangka panjang adalah menjalin koordinasi dan kemitraan petani dengan pemangku kepentingan terkait seperti akademisi, pihak pemerintah dan swasta. Dapat terbentuk model ekonomi bisnis UMKM berkelanjutan skala nasional.
Prevalencia de brucelosis bovina en la cuenca ganadera del Alto Imaza, región Amazonas, Perú
Authors: López del Aguila Wan Yú 
Published: October 2021

El presente estudio tuvo como objetivo evaluar la prevalencia de brucelosis bovina en la cuenca ganadera del Alto Imaza, región Amazonas, Perú. Se trabajó con bovinos de las razas Brown Swiss, y Holstein, sin distinción de edad y sexo, considerando como las razas más representativas en la producción ganadera del Alto Imaza. El estudio se realizó recolectando muestras sanguíneas de los bovinos por venopunción de la vena coccígea ubicada debajo de la cola haciendo uso de tubos al vacío con anticoagulante. Las muestras fueron procesadas mediante el Kit de Rosa de Bengala entre los meses de noviembre 2019 y enero 2020. En los resultados se muestra que según raza; la prevalencia de brucelosis bovina en el estudio demostró que en el 100% no se evidencia brucelosis, por lo que el número y porcentaje de casos positivos es nulo (0%). Y según sexo; el estudio también demostró que en el 100% no se evidencia, por lo que el número y porcentaje de casos positivos es nulo (0%). Se concluye que la distribución de bovinos del estudio fue: el 32.17% y 67.83% fueron de Raza Holstein y Brown Swiss respectivamente. Así mismo el 70% de los bovinos seleccionados para el estudio fueron vacas en mayor porcentaje, así también el 14% de tipo vaquilla, el 10% vaquillonas, y en menor porcentaje con 1, 2 y 3% fueron Toro, Torete y Ternera respectivamente resultando por los distintos tipos y categorías que no existe prevalencia de brucelosis bovina.
Contiguous squamous proliferations in syringocystadenoma papilliferum: A retrospective study of 14 cases
Authors: Aggarwal Divya , Chatterjee Debajyoti , Keshavamurthy Vinay , Chhikara Komal , Saikia Uma Nahar , Radotra Bishan D. , De Dipankar , Singh Mini P. 
Published: October 2021

Background:
Syringocystadenoma papilliferum is a benign adnexal neoplasm. Contiguous squamous proliferation has been rarely described in syringocystadenoma papilliferum.

Aims:
This study aimed to evaluate the spectrum and pathogenesis of contiguous squamous proliferation in syringocystadenoma papilliferum.

Materials and Methods:
All cases of syringocystadenoma papilliferum diagnosed over the past 12 years were screened for contiguous squamous proliferation. Cases with associated nevus sebaceous were excluded from the study. Immunohistochemistry for GATA3, CK7, BRAFV600E and p16 was performed. PCR for human papilloma virus, type 16 and 18, was carried out.

Results:
Of a total of 30 cases, 14 cases showed associated contiguous squamous proliferation which included four cases of verrucous hyperplasia, six cases with papillomatosis, two cases with mild squamous hyperplasia and one case each of Bowen’s disease and squamous cell carcinoma. In the cases with non-neoplastic contiguous squamous proliferations, the squamous component did not express CK7 or GATA3. However, the squamous component of premalignant and malignant lesions expressed CK7 and GATA3 concordant with the adenomatous component. BRAF was positive in adenomatous component in five cases while the contiguous squamous proliferation component was negative for BRAF in all but one case. p16 was negative in both components of all cases and PCR for human papilloma virus was negative in all cases.

Limitations:
Due to the rarity of disease, the sample size of our study was relatively small with two cases in the 2nd group, that is, syringocystadenoma papilliferum with malignant contiguous squamous proliferation. Detailed molecular studies such as gene sequencing were not performed.

Conclusion:
Syringocystadenoma papilliferum with contiguous squamous proliferation is underreported, and most commonly displays verrucous hyperplasia. The premalignant and malignant contiguous squamous proliferations likely arise from syringocystadenoma papilliferum while the hyperplastic contiguous squamous proliferations likely arise from the adjacent epidermis. Relationship with high-risk human papilloma virus is unlikely. However, further molecular analysis of larger number of cases is required to establish the pathogenesis.
Development of software based on NX Open for assessing the reliability of REA designs
Authors: Пименов С.А. , Зорков П.П. 
Published: October 2021

Рассматриваются основные алгоритмы и численные методы решения задач оценки надежности конструкций радиоэлектронной аппаратуры. Алгоритмы реализованы в виде расчетного программного обеспечения АРКОН для проведения оценки надежности конструкций в условиях случайного нагружения с применением численных методов: метода конечных элементов и метода статистического моделирования.
The paper deals with the development of new software which allows us to use probabilistic methods for evaluating the reliability of CEA designs. The main algorithms and numerical methods for solving problems of reliability assessment of REA structures are considered. The reason for conducting the study was the presence of the lag in development of the program-technical complexes aimed at assessment of the strength reliability in relation to the tasks being solved.

At the moment, analytical methods for estimating the probability of failure-free operation have been developed. Their implementation requires the existence of a law for the distribution of random load parameters and the system itself. This method is deprived of the method of statistical modelling with the calculation of stresses using the finite element method. The algorithms are implemented in the form of computational software for assessing the reliability of structures under random loading conditions.

To implement this method, an open CAE was chosen — a system with the ability to program its own modules — the NX Open system.

The developed software is displayed on the NX panel in the form of a special icon tray Reliability.

The developed software is intended for analysis of the strength of reliability of CEA structures with random loading. The software does not have domestic or foreign alternatives. The main advantages are universality (the ability to perform calculations for a wide range of designs, taking into account the statistical nature of the initial data), the reliability of the estimated estimates, confirmed by the use of modern numerical methods: the finite element method and the statistical modelling method.
Estimation of the accuracy of numerical analysis for the deformed state of power structures of technical objects
Authors: Рогалев А.Н. , Доронин С.В. , Москвичев В.В. 
Published: October 2021

Под силовыми конструкциями понимают технические устройства, составленные из различных частей, воспринимающие комплекс эксплуатационных нагрузок в штатных и аварийных режимах нагружения. При решении прикладных задач исследования напряженно-деформированных состояний силовых конструкций важна оценка степени близости к точному приближенного решения, полученного на вполне определенной сетке конечных элементов с конечной величиной шага сетки. С учетом влияния ошибок округления сходимость метода конечных элементов контролировать сложно: при большом числе конечных элементов решение может расходиться из-за накапливающихся ошибок округления, даже если условия сходимости выполняются. Описанное в статье применение методов обратного анализа ошибок позволяет достаточно точно контролировать точность численных оценок деформированного состояния силовых конструкций, что подтверждают расчеты, выполненные для практических задач.
The solution of applied problems of technogenic safety, survivability, risk and protection is performed for structures which are close to limiting states. These states are characterized by decreasing safety factors down to one. In this case a mistaken estimation for safety factor may cause the situation when the calculated safety factor will be greater than one but the real safety factor will be less than one. Safety factors estimation is performed on the basis of calculation for stress-strain state characteristics.

Thus, the issues of accuracy and reliability of determining stresses and deformations are an integral part of the problem of man-made safety. In the numerical analysis of the stress-strain state, the stiffness matrix of the design model is formed, the dimension of which reaches up to tens of millions. A large number of computations for tasks of this dimension is presumably leading to significant rounding errors. Ensuring the grid convergence of results by decreasing the grid spacing is inconsistent with the growth of computational errors due to rounding. For finite element analysis of power structures of technical objects, methods of a posteriori reverse error analysis are proposed that control the effect of rounding errors on the result when solving a solving system of linear algebraic equations. The coefficient matrix of this system is the stiffness matrix of the finite element model. The basic idea is to obtain and solve a system of equations with a known exact solution. Comparison of the results of exact and numerical solutions allows us to estimate the magnitude of the error.
The influence of global climate changes on Western Siberia climate in the first half of XXI century
Authors: Лагутин А.А. , Волков Н.В. , Мордвин Е.Ю. 
Published: October 2021

Представлены результаты исследований влияния глобальных климатических
изменений системы Земля на климат Западной Сибири. Для установления зон региона, в которых к середине XXI в. прогнозируются изменения, использовались модельные данные региональной климатической модели RegCM4 и принятые в этом
классе задач стандартизованные евклидовы расстояния между характеристиками
климата для двух состояний климатической системы — современного и будущего. Установлены зоны Западной Сибири, в которых в рамках сценариев RCP 4.5
и RCP 8.5 возможной эволюции глобальной системы к 2050 г. прогнозируются
изменения климата.
Purpose. An analysis of the influence of a global climate changes on the climate
of Western Siberia, determination of zones of the region where changes are expected in
the middle of the twenty-first century.
Methodology. Results obtained using the model data of the regional climate model
RegCM4 and the standardized Euclidean distances between climate characteristics.
Findings, originality. Simulations of the climate characteristics for the two states
of the climate system — contemporary and future — have been carried out. The zones
of Western Siberia region, in which climate change is expected in the framework of
RCP 4.5 and RCP 8.5 radiative forcing scenarios by the 2050, have been determined.
The information and computational system for the massive parallel processing of radar data based on Apache Spark framework
Authors: Потапов В.П. , Попов С.Е. , Костылев М.А. 
Published: October 2021

Рассмотрена задача создания информационно-вычислительной системы обработки радарных снимков с возможностью визуализации, конфигурирования и запуска алгоритмов основных этапов процессинга интерферометрических данных методом Persistent Scatterer в интеграции с MPP-системой (Massive Parallel Processing)
для высокопроизводительного мониторинга смещений земной поверхности участков аэрокосмической съемки. Приведены основные схемы маршрутизации потоков данных исполнения заданий. Представлена программная реализация в виде
веб-портала на базе компонентов ReactJS, включая автоматизированную загрузку
и обновление базы данных радарных снимков Sentinel-1A посредством технологии
RESTful API.
The aim of the presented work is the development of an information computational
system for processing radar images with the ability to visualize, configure and run
algorithms for the main stages of processing interferometric data by the Persistent
Scatterer method integrated with the MPP system (massive parallel processing) for
high-performance monitoring of the Earth surface displacement of aerospace survey
sites.
As a result of the analysis of the different approaches used in the processing of radar
data and the review of distributed computing technologies, a distributed information
system based on the architecture of massively parallel execution of the Apache Hadoop
ecosystem processes the streaming post-processing of radar images and the construction
of a displacement map was proposed and implemented. A software implementation
is presented in the form of a web portal based on ReactJS components, including
automated downloading and updating of the Sentinel-1A radar image database using
RESTful API technology.
The innovation of suggested solution consists of the model of the interaction between
developed processing modules based on the isolated execution context with HDFS data
storage during the preparing procedure and the complete cycle for the processing of the
Earth surface displacement.
An integrated approach to the developing scalable front-end and back-end software
complex components with the use of ReactJS, Redux and Apache Spark framework was
used for the first time. Supporting of WPS specification makes it possible using almost
any GIS, which works with this standard.
The evaluation of a scientific and technological level of research shows high performance
of the developed system while maintaining the results quality. In particular,
the adapted and integrated ESA SNAP Toolbox returned identical arrays of processed
interferometric data in the per-pixel comparison but the speed of the procedure is
several times faster.
Tables of geometric, high-speed and energy characteristics for the bottom parts of a tornado
Authors: Крутова Ирина Юрьевна 
Published: October 2021

В настоящей работе при заданном в таблице Фудзиты значении ширины полосы разрушений для всех торнадо установлены два внешних радиуса притока воздуха в придонную часть торнадо: <sub>in</sub><sub>1 </sub> и r<sub>in</sub><sub>2</sub>. Первый из этих радиусов <sub>in</sub><sub>1 </sub> такой, что кинетическая энергия вращательного движения построенного потока составляет половину всей его кинетической энергии. При втором радиусе r<sub>in</sub><sub>2</sub> кинетическая энергия всего потока становится равной кинетической энергии самого слабого торнадо, при котором имеют место разрушения. Знание значений этих радиусов позволит более надежно прогнозировать возникновение торнадо.
The natural phenomenon of a tornado, known for its destructive power, is an object of study of many scientists. The available part of the data of field observations of this natural phenomenon is systematized and collected in the so-called Fujita scale. In particular, it indicates the width of the fracture band for tornadoes of different intensity, and only the values of the maximum wind speed are given from the gas dynamic parameters. Bautin S.P. proposed and justified the scheme of occurrence and functioning of natural ascending swirling flows of the tornado and tropical cyclones. Based on both this scheme and the data of the Fujita scale, the external radii of air inflow in the near-bottom parts of tornadoes of various intensities are established and the gas dynamic parameters of these flows are calculated. It turned out that in the case of the lowest intensity from the Fujita scale, the kinetic energy of the rotational motion of the air is half of the entire kinetic energy of the flow in the bottom part. As tornado intensity increases, the kinetic energy of rotational motion becomes the more prominent part of the total kinetic energy of the flow. In this paper, given the Fujita value of the width of the destruction zone for all tornadoes along with the two external radii of air inflow into the bottom part of the tornado are established as r<sub>in</sub><sub>1 </sub> and r<sub>in</sub><sub>2</sub>. The first of these radii, namely r<sub>in</sub><sub>1 </sub>, denotes the radius at which the kinetic energy of the rotational motion of the constructed stream is half of all the kinetic energy of this stream. The second one denoted as r<sub>in</sub><sub>2</sub>, is the radius at which the kinetic energy of the entire stream becomes equal to the kinetic energy of the weakest destructive tornado. Knowing the values of these radii allows reliable predicting the origin of the tornado.
Intellectual program support for the analysis of random digital images
Authors: Резник Александр Львович , Тузиков Александр Васильевич , Соловьев Александр Анатольевич , Торгов Андрей Владиславович 
Published: October 2021

Описаны специализированные методы, разработанные авторами для решения задач обработки случайных точечных изображений, в основе которых лежат построение программных систем для проведения трудоемких аналитических выкладок и использование различных расширений классических чисел Каталана. Приведены примеры эффективного применения предложенных методов для расчета точных аналитических формул, описывающих вероятность безошибочного считывания случайных дискретных полей и цифровых изображений, проводимого сканирующей апертурой с ограниченным числом пороговых уровней.During the digital registration and subsequent processing of fast dynamic processes which have different physical nature, determination for the unknown coordinates of the point-pulse sources becomes one of the most time-consuming and algorithmically complex problems. It happens since it is necessary to satisfy the requirements for accuracy and reliability of registration in such tasks. Finding the exact analytical relationships connecting reliability of the registration with the characteristics of the physical process and the output parameters of the processing system is a problematic and very difficult task in most practically important cases, for example in the case of power of random radiation source and the size of the analyzed field. This paper proposes the methods developed by the authors for calculating the exact analytical formulas and relationships that describe the probability of error-free readout of a random point-pulse field when registration procedure is performed by a scanning aperture with a limited number of threshold levels. The specialized methods, based on the construction of software systems for laborious analytical calculations and the use of various extensions of the classical Catalan numbers are offered. In particular, procedures have been built for multidimensional integration over convex polyhedral areas with freely movable boundaries in n-dimensional space. Two probabilistic problems are also formulated, leading to an extension of the classical Catalan numbers, which turned out to be more convenient to formulate and solve in a symbolic-linguistic form.
Errors in the numerical solution of the torsion Schr¨odinger equation with Mathieu functions basis set
Authors: Белов А.Н. , Туровцев В.В. , Орлов Ю.Д. 
Published: October 2021

Рассмотрена погрешность алгоритма аппроксимации функций Матье рядами Фурье, когда коэффициенты ряда Фурье представлены сходящимися цепными дробями. На основании проведенного анализа получены рекуррентные соотношения для абсолютной и относительной погрешностей удерживаемых звеньев цепной дроби и коэффициентов фурье-разложения. Предложен метод оценки точности расчета элементов матрицы гамильтониана торсионного уравнения Шрёдингера в базисе функций Матье. Эффективность предложенного алгоритма подтверждена численными примерами
The dependence for the Hamiltonian matrix elements of the Schrodinger torsion equation on the calculation errors of the Mathieu basis set is considered. The Mathieu functions are represented with continued fractions in this study. The analysis of the Mathieu function approximation algorithm using Fourier series expansion is carried out when the coefficients of the Fourier series are represented by convergent continued fractions. It is shown that the major contribution to the errors at the Fourier coefficient calculation is made by the error accumulating in the corresponding elements of the continued fraction. Recurrence relations for the absolute and relative errors of the kept elements of the continued fraction and the Fourier expansion coefficients are obtained. It is shown and illustrated by a numerical example that the absolute and relative errors of the Fourier expansion coefficients in the proposed algorithm are negligible. It is noted that the maximum relative errors of continued fraction are in the highest elements of the kept part.

The results of our work are used to estimate the calculation error in the integrals containing Mathieu functions. These integrals constitute the Hamiltonian matrix elements of the Schr¨odinger torsion equation. We developed an algorithm to estimate of the calculation accuracy of the Hamiltonian matrix elements of the Schr¨odinger torsion equation in the basis set of Mathieu functions. We provide the example of this algorithm. The results of the work indicate the adequacy and effectiveness at the application of the Mathieu function basis set to the solution of the Schrdinger torsion equation.¨