bluuebunny/crossref_metadata_2025 huggingface dataset:
ОБ ИНТЕРПОЛЯЦИОННОМ ОПЕРАТОРЕ ЧЕТВЕРТОГО ПОРЯДКА ТОЧНОСТИ ДЛЯ РАЗНОСТНОГО РЕШЕНИЯ ТРЕХМЕРНОГО УРАВНЕНИЯ ЛАПЛАСА
Authors: ДОСИЕВ А.А. , ЦЕЛИКЕР Э.
Published: October 2024

Для получения решения четвертого порядка точности задачи Дирихле для уравнения Лапласа в прямоугольном параллелепипеде предлагается трехмерный (3D) оператор согласования. Оператор строится на основе однородных ортогонально-гармонических многочленов в трех переменных и использует разностное решение задачи на кубической сетке для получения приближенного решения между узлами сетки. Разностное решение в узлах, используемых оператором интерполяции, вычисляется по новой формуле, разработанной на основе дискретного преобразования Фурье. Эта формула может применяться прямо к требуемым узлам без решения всей системы разностных уравнений. Четвертый порядок точности построенных численных инструментов демонстрируется на численном примере.

A three-dimensional (3D) matching operator is proposed for a fourth-order accurate solution of a Dirichlet problem of Laplace's equation in a rectangular parallelepiped. The operator is constructed based on homogeneous, orthogonal-harmonic polynomials in three variables, and employs a cubic grid difference solution of the problem for the approximate solution inbetween the grid nodes. The difference solution on the nodes used by the interpolation operator is calculated by a novel formula, developed on the basis of the discrete Fourier transform. This formula can be applied on the required nodes directly, without requiring the solution of the whole system of difference equations. The fourth-order accuracy of the constructed numerical tools is demonstrated further through a numerical example.
ВОЗБУЖДЕНИЕ СЕЙСМОАКУСТИЧЕСКИХ ВОЛН СИНГУЛЯРНЫМ ИСТОЧНИКОМ, ДЕЙСТВУЮЩИМ НА ГРАНИЦЕ ЖИДКОГО СЛОЯ И ПОРОУПРУГОГО ПОЛУПРОСТРАНСТВА
Authors: ИМОМНАЗАРОВ Х.Х. , МИХАЙЛОВ А.А. , ГОЗИЕВ К.С. , ОМОНОВ А.Т.
Published: October 2024

Рассматриваются результаты моделирования распространения сейсмоакустических волн на основе численного решения двумерной прямой динамической задачи для слоистой пористой среды. Распространение сейсмических волн в пористой среде, насыщенной флюидом, при отсутствии потери энергии описывается системой дифференциальных уравнений первого порядка в декартовой системе координат. Исходная система записывается в виде гиперболической системы в терминах скоростей упругой вмещающей среды, скорости насыщающей жидкости, компонент тензора напряжений и давления жидкости. Для численного решения поставленной задачи используется метод комплексирования интегрального преобразования Лагерра по времени с конечно-разностной аппроксимацией по пространственным координатам. Используемый алгоритм решения позволяет эффективно проводить расчёты при моделировании в сложно-построенной пористой среде и исследовать возникающие в таких средах волновые эффекты.

The results of modeling the propagation of seismoacoustic waves based on the numerical solution of a direct dynamic problem for a porous medium are considered. The propagation of seismic waves in a porous medium saturated with fluid in the absence of energy loss is described by a system of differential equations of the first order in the Cartesian coordinate system. The initial system is written as a hyperbolic system in terms of the velocities of the elastic host medium, the velocity of the saturating fluid, the components of the stress tensor, and the pressure of the fluid. For the numerical solution of the problem posed, the method of complexing the integral Laguerre transform in time with a finite-difference approximation in spatial coordinates is used. The solution algorithm used makes it possible to efficiently carry out calculations when modeling in a complexly constructed porous medium and to investigate the wave effects that arise in such media.
РАЗНОСТНАЯ СХЕМА ДЛЯ ВОЛНОВОГО УРАВНЕНИЯ
Authors: МАСТРЮКОВ А.Ф.
Published: October 2024

В работе рассматривается численное решение волнового уравнения. В алгоритме решения используются оптимальные параметры, значения которых получаются с применением преобразования Лагерра по времени к волновому уравнению. В разностную схему уравнения 2-го порядка аппроксимации вводятся дополнительные параметры. Оптимальные значения этих параметров получаются минимизацией погрешности разностной аппроксимации уравнения Гельмгольца. После проведения обратного преобразования Лагерра в уравнении для гармоник получается дифференциально-разностное волновое уравнение с оптимальными параметрами. Оно разностное по пространственным переменным и дифференциальное по времени. Предлагается итерационный алгоритм решения дифференциально-разностного волнового уравнения с оптимальными параметрами. Рассмотрены 1- и 2-мерные случаи уравнений. Приводятся результаты численных расчетов дифференциально-разностных уравнений. Показано, что использование разностных схем с оптимальными параметрами ведет к повышению точности решения уравнений.

The paper deals with a numerical solution of the wave equation. The solution algorithm uses optimal parameters which are obtained by using Laguerre transform in time for the wave equation. Additional parameters are introduced into a difference scheme of 2nd-order approximation for the equation. The optimal values of these parameters are obtained by minimizing the error of a difference approximation of the Helmholtz equation. Applying the inverse Laguerre transform in the equation for harmonics, a differential-difference wave equation with the optimal parameters is obtained. This equation is difference in the spatial variables and differential in time. An iterative algorithm for solving the differential-difference wave equation with the optimal parameters is proposed. 2-dimensional and 1-dimensional equations are considered. The results of numerical calculations of the differential-difference equations are presented. It is shown that the difference schemes with the optimal parameters give an increase in the accuracy of solving the equations.
ПРИБЛИЖЕННЫЙ АЛГОРИТМ МОДЕЛИРОВАНИЯ СТАЦИОНАРНЫХ ДИСКРЕТНЫХ СЛУЧАЙНЫХ ПРОЦЕССОВ С ДВУМЕРНЫМИ РАСПРЕДЕЛЕНИЯМИ ПОСЛЕДОВАТЕЛЬНЫХ КОМПОНЕНТ В ВИДЕ СМЕСИ ГАУССОВСКИХ РАСПРЕДЕЛЕНИЙ
Authors: ОГОРОДНИКОВ В.А. , АКЕНТЬЕВА М.С. , КАРГАПОЛОВА Н.А.
Published: October 2024

В работе представлен приближенный алгоритм моделирования стационарного дискретного случайного процесса с одномерными и двумерными распределениями его последовательных компонент в виде смеси двух гауссовских распределений. Алгоритм основан на комбинации метода условных распределений и метода исключения. Приведен пример применения алгоритма для моделирования временных рядов максимальной за сутки температуры воздуха.

The paper presents an approximate algorithm for modeling a stationary discrete random process with marginal and bivariate distributions of its consecutive components in the form of a mixture of two Gaussian distributions. The algorithm is based on a combination of the conditional distribution method and the rejection method. An example of application of the proposed algorithm for simulating time series of daily maximum air temperatures is given.
ЧАСТИЧНАЯ МНОГОМЕРНАЯ МОДЕЛЬ С ОШИБКАМИ В ПЕРЕМЕННЫХ И ЕЕ ПРИМЕНЕНИЕ В МОНИТОРИНГЕ ОСЕДАНИЯ ГРУНТА
Authors: ВАН Ц. , ХУ Ф.
Published: October 2024

С целью решения проблемы, связанной с тем, что матрица коэффициентов многомерной модели c ошибками в переменных (ММОП) содержит постоянные столбцы, модель ММОП расширена до частичной многомерной модели с ошибками в переменных (Ч-ММОП) и предложен новый алгоритм модели Ч-ММОП, основанный на принципе частичной модели с ошибками в переменных (Ч-МОП) и непрямой корректировке. Алгоритм прост и легко реализуем. Для проверки используется пример преобразования координат, а результаты сравниваются с существующим алгоритмом модели ММОП; они показывают эффективность предлагаемого алгоритма. Наконец, алгоритм Ч-ММОП применяется к многоточечной серой модели (МСМ(1,N)) мониторинга оседания грунта. Результаты показывают, что модель Ч-ММОП, предлагаемая в данной статье, лучше учитывает влияние ошибок точек мониторинга, а результаты хорошо соответствуют реальной ситуации.

Aiming at the problem that the coefficient matrix of multivariate errors-in-variables (MEIV) model contains constant columns, the MEIV model is extended to partial multivariate errors-in-variables (P-MEIV), and the new algorithm of P-MEIV model is proposed based on the principle of partial errors-in-variables (PEIV) model and indirect adjustment. The algorithm is simple and easy to implement. An example of coordinate transformation is used for verifying, and the results are compared with the existing MEIV model algorithm, which shows the effectiveness of the proposed algorithm. Finally, the P-MEIV algorithm is applied to the multi-point grey model (MGM(1,N)) of settlement monitoring. The results show that the P-MEIV model proposed in this paper can better consider the influence of monitoring point errors, and the estimated results are in good agreement with the actual situation.
КРИТЕРИИ РАЗРЕШИМОСТИ АСИММЕТРИЧНЫХ РАЗНОСТНЫХ СХЕМ ПРИ ВЫСОКОТОЧНОЙ АППРОКСИМАЦИИ ГРАНИЧНЫХ УСЛОВИЙ
Authors: ПААСОНЕН В.И.
Published: October 2024

В работе исследуется технология расчета разностных задач с внутренними граничными условиями баланса потоков, построенными с помощью односторонних многоточечных разностных аналогов первых производных произвольного порядка точности. Предлагаемая технология одинаково подходит для любых типов решаемых дифференциальных уравнений и допускает однотипную реализацию при любых порядках точности. Она, в отличие от аппроксимаций, опирающихся на продолженную систему уравнений, не приводит к осложнениям при расщеплении многомерных задач на одномерные. Сформулированы достаточные условия разрешимости и устойчивости реализации алгоритмов методом прогонки для граничных условий произвольного порядка точности. Доказательство основано на приведении многоточечных граничных условий к виду, не нарушающему трехдиагональную структуру матриц, и установлении условий диагонального преобладания в преобразованных строках матрицы, соответствующих внешним и внутренним граничным условиям.

In this paper we study the technology of calculating difference problems with internal boundary conditions of flow balance constructed by means of one-sided multipoint difference analogs of first derivatives of arbitrary order of accuracy. The proposed technology is equally suitable for any type of differential equations to be solved and admits a uniform realization at any order of accuracy. It, unlike approximations based on the continued system of equations, does not lead to complications in splitting multidimensional problems into one-dimensional ones. Sufficient conditions of solvability and stability of the realization of algorithms by the run method for boundary conditions of arbitrary order of accuracy are formulated. The proof is based on the reduction of multipoint boundary conditions to a form that does not violate the tridiagonal structure of matrices, and the establishment of the conditions of diagonal dominance in the transformed matrix rows corresponding to the external and internal boundary conditions.
Preventing violence and harassment in employment relationships
Authors: Stanytė Karolina , Latakaitė Greta
Published: October 2024

This article analyses issues related to violence and harassment in employment relationships. This topic is widely addressed internationally, but in the national context the issue of violence and harassment in employment relations has not been fully and thoroughly analysed, although it is of great importance for society. Individuals exposed to violence and harassment can suffer not only physical but also emotional experiences and, as a result, long-term negative consequences. In this context, appropriate legislative regulations are important and the 2022 amendments to the Labour Code of the Republic of Lithuania are therefore of particular relevance and are examined in this paper. The development of appropriate preventive measures is a particularly relevant aspect, which is why this paper delves into the development of effective preventive measures in the workplace that can help to ensure the effective protection of workers. The article also contains analysis of the mechanism for redressing workers’ rights.
CALCULATION AND MATHEMATICAL MODELING OF ELECTROMAGNETIC TRACTION CHARACTERISTICS OF THE DRIVE WORKING AUTHORITY OF OIL EXTRACTION INSTALLATIONS ON THE BASE OF A COAXIAL-LINEAR INDUCTION MOTOR
Authors:   Kyiv National University of Construction and Architecture, Povitrianyh Syl Ave., 31, Kyiv, 03037, Ukraine, Golenkov G.M. , Veremienko A.V. ,   Kyiv National University of Construction and Architecture, Povitrianyh Syl Ave., 31, Kyiv, 03037, Ukraine
Published: October 2024

Today, a promising direction in the development of the field of application of linear motors is their use in the construction of well pumps. This makes it possible to significantly increase the stroke of the working body and improve the efficiency of oil production compared to the traditionally used rod-well analog. When solving such a problem, a dif-ficult issue is forecasting and ensuring the traction force during the working trajectory of the movement, which is what the research conducted in the work is aimed at. As the main result, the application of the grapho-analytical method in the calculations and modeling of the characteristics of linear motors with complex trajectories of motion is substanti-ated. In the course of calculations with its use, the possibility of a four-fold increase in the traction force with a general improvement in the static characteristics of the engine in a given range of movement at the permissible speed of the working body was proven. References 5, figures 6.
DETERMINATION OF THE CAPACITANCE VALUE OF THE CONDUCTOR-INSULATOR-PIN SYSTEM IN 6-10 kV OVERHEAD POWER LINES TO ASSESS THE FEASIBILITY OF EARLY DIAGNOSTICS OF THE INSULATION CONDITION
Authors:   Chernihiv Politechnic National University,  str. Shevchenka, 95, Chernihiv, 14035, Ukraine, Buinyi R.O. , Bezruchko V.M. ,   Chernihiv Politechnic National University,  str. Shevchenka, 95, Chernihiv, 14035, Ukraine, Strogii A.Yu. ,   Chernihiv Politechnic National University,  str. Shevchenka, 95, Chernihiv, 14035, Ukraine
Published: October 2024

The negative influence of single-phase-to-ground faults in networks with an isolated neutral, resulting from a break-down of pin insulation, is analyzed. A concept for early detection of damage to pin insulators is proposed, based on measuring changes in leakage current through the insulators caused by changes in the capacitance of the “pin-insulator-wire” system. For this purpose, a simulation of the system was done. A model of the geometric dimensions of the insulator is created with taking into account the design features of the installation of the line wire in the AutoCAD software package and the distribution of the electric field is simulated in the Comsol Multiphysics 5.6 package, which makes it possible to estimate the electrical capacitance. The dependence of the calculated electrical capacitance of ShF-20G insulators on the dielectric constant, diameters and grades of wires used on 6-10 kV overhead power lines and options for wire bundles is considered. Numerical values of the capacitance of the “pin-insulator-wire” system were obtained for different configuration options. It has been shown that the state of the insulator material has a deci-sive influence on the capacity of the system. References 11, figures 2, tables 2.
Leksem piękno jako wartościujący składnik chrematonimów marketingowych
Authors: Łuc Izabela , Bortliczek Małgorzata
Published: October 2024

T The article concerns proper names of catering and service facilities containing the lexemes piękno (beauty), piękny (beautiful) or piękność (beautifulness). The analytical material includes 109 marketing chrematonyms collected in 2016–2020, e.g. from websites. Chrematonyms with the lexeme piękno (beauty) have been divided according to the assigned meanings, functions and the method of formation. The analyzed company names perform the persuasive function, creating a demand for a specific offer and/or convincing about the quality of the advertised service.
Zbiory archiwaliów w Bibliotece Bogumiła Rudolfa Tschammera w Cieszynie jako źródło do badań polszczyzny cieszyńskiej
Authors: Raclavská Jana
Published: October 2024

This article presents a selection of old Polish prints and manuscript texts held in the Bogumił Rudolf Tschamer Library in Cieszyn. The 18th and 19th century archives from the Lutheran clergy are rich material for the study of regional Polish, especially religious language. The nucleus of today’s collection was the church library, founded in the early days of the Church of Jesus at the Higher Gate in Cieszyn (1709). The book collection was greatly expanded by a gift made by the lawyer B. R. Tschammer and the noble Bludowski family (18th century). The library contains works by protestant clergymen, representatives of the nobility, teachers and regional writers. The Tschamer Library was the first public library in Cieszyn. Today, the B. R. Tschamer Library and Archive functions as part of the Museum of Protestantism.
Specyfika gatunkowa internetowych relacji na żywo w wybranych serwisach sportowych
Authors: Poroszewska Dominika
Published: October 2024

The article attempts to characterization of live Internet sports coverage as a genre journalistic and an analysis of the genre specifics of soccer match reports based on research material from the sport.pl and sportfakty.wp.pl portals. The main research hypothesis was the statement that online live reports live in sports websites are created on the basis of a pattern that has has formed over the years. A comparative analysis between the coverage of Ekstraklasa soccer matches in the 2020/2021 and 2023/2024 seasons in order to understand the evolution of this journalistic genre functioning on the Internet for more than 20 years.
Dwujęzyczne nazewnictwo na liniach kolejowych na Zaolziu w Republice Czeskiej
Authors: Drapa Petr
Published: October 2024

The paper deals with bilingual nomenclature on railway lines in Zaolzie region. This paper deals with the process of introducing bilingual (Czech-Polish) signs on the railway in Zaolzie region. It conducts a survey of the current situation of the Polish national minority and the approach of Polish organizations, mainly the Congress of Poles in the Czech Republic (Kongres Polaków w Republice Czeskiej), to bilingualism. The work deals with the theoretical aspects of bilingualism in the Czech Republic, for example the conditions under which bilingual signs are introduced. However, the most important is the practical part, which describes the introduction of bilingualism at railway stations. The work also deals with other areas where Polish is used - e.g. timetables, train announcements at stations… It also tries to draw attention to the problems with the introduction of bilingualism, which persist to this day.
The Influence of Knowledge Quality, Self-Efficacy, and Reciprocity on Online Entrepreneurial Knowledge-Sharing Activities of Muslim Entrepreneurs on Facebook
Authors: Fakhrudin Fakhrudin , Sukayat Tata , Shaifurrahman Shaifurrahman
Published: October 2024

The study examines the influence of knowledge quality, self-efficacy, and reciprocity among Muslim entrepreneurs on Facebook. It employed a quantitative approach with an observation method. The findings reveal that knowledge quality positively affects online entrepreneurial knowledge-sharing activities. High-quality knowledge promotes effective collaboration and sharing within the entrepreneur community. However, self-efficacy and reciprocity were not found to influence these activities significantly. Therefore, in this context, self-confidence in one's abilities and expectations for reciprocity may be less important than previously thought. This study suggested that knowledge sharing should focus more on improving the quality of knowledge shared than fostering self-efficacy or reciprocity as higher quality knowledge could contribute to the growth and success of Muslim entrepreneurs by encouraging more effective knowledge-sharing strategies.
Analisis Semantik atas Makna Wahn dalam Al-Quran
Authors: Hikmah Nur
Published: October 2024

Latar belakang penelitian berdasarkan adanya sebuah hadis tentang penyakit wahn yang akan menimpa bangsa ini kepada umatnya di setiap zaman pada generasi ummat, sehingga ditemukan korelasi antara ayat-ayat wahn dalam Al-Quran dengan wahn yang disebutkan dalam hadis Nabi. Penelitian ini menggunakan metode analisis deskriptif (descriptive analysis) dengan pendekatan kualitatif. Sumber primernya adalah ayat-ayat Al-Quran yang di dalamnya terdapat kosakata wahn dari sumber sekunder yang maknanya terkandung dalam tafsir Anwar al-Tanzil wa Asrar al-Ta’wil, al-Bahr al-Muhith, Irsyad al-‘Aql al-Salim Ila Mazaya, dan al-Tahrir wa al-Tanwir. Makna dasar wahn ditemukan dari kosakata yang digunakan oleh mufassir dalam menafsirkan ayat-ayat tentang wahn dalam Al-Quran, terdapat 22 kosakata (16 sinonim dan 6 antonim) yang menunjukkan relasi makna. Makna kontekstual wahn dalam Al-Quran terbagi ke dalam 4 bagian yaitu: pertama, satu ayat tentang lemahnya ideologi. Kedua empat ayat tentang lemahnya ambisi atau larangan putus asa. Ketiga dua ayat tentang lemah fisik. Keempat satu ayat tentang lemahnya tipu daya.
Konsep Membela Allah dalam Al-Qur’an: Analisis Komparatif Penafsiran Ar-Razi, Ibn Al-Khathib dan Quraisy Shihab
Authors: Mulyaden Asep , Zulaiha Eni
Published: October 2024

Terdapat banyak konsep dalam al-Qur’an yang dijelaskan secara terpisah dalam berbagai ayatnya. Salah satu konsep yang sering kali menjadi polemik di khalayak umum adalah mengenai konsep membela Allah. Tujuan tulisan ini adalah untuk mengungkap konsep membela Allah dalam al-Qur’an yang mencakup makna dan bentuk dari membela Allah tersebut dengan menggunakan sudut pandang tiga mufasir, yaitu Ar-Razi, Ibn Al-Khathib dan Quraisy Shihab. Penelitian ini menggunakan metode kualitatif dengan pendekatan kepustakaan serta merujuk pada kitab tafsir yang ditulis oleh tiga mufasir yang telah disebutkan. Hasil yang didapatkan adalah bahwa makna membela Allah dalam al-Qur’an adalah membela agama-Nya, rasul-Nya, golongan atau kelompok-Nya, ajaran atau pengajaran-Nya dan nilai-nilai yang ada di dalamnya. Sedangkan bentuk implementasi dari membela Allah tersebut dilakukan dengan beragam bentuk, seperti: seperti jihad, dakwah, menyampaikan dalil agama, memerintahkan pada kebaikan dan mencegah terjadinya kemunkaran. Semua bentuk tersebut disesuaikan dengan kebutuhan dan kondisi dari pelakunya masing-masing.
AgNPs break the wall cell in Chlorella vulgaris by oxidative stress generation
Authors: Robles-Jarero Elva Guadalupe , Galvez-Gastelum Francisco Javier , Velasquez-Ordoñez Celso , Ojeda-Martínez María Luisa , Yañez-Sánchez Irinea
Published: October 2024

Silver nanoparticles are used commercially due in part to its antibacterial power. However, due to their nanoscale size, these may not be retained by filters wastewater reaching the aquatic environment, which could affect microorganisms of initial food-chain as microalgae. The purpose of this study was to elucidate the cytotoxic effects of silver nanoparticles (3-7nm) in freshwater phytoplankton (Chlorella vulgaris) ex situ. Silver nanoparticles synthesis was performed according to silver nitrate chemical reduction, they were characterized by scanning electron microscope. C. vulgaris collected from Chapala Lake, Jalisco, México, was kept under laboratory conditions. C. vulgaris, grown in Bristol broth, were exposed to different concentrations of silver nanoparticles (0.01, 0.1 and 1mg L-1) for 24 hours. An important cytotoxic effect was determined in C. vulgaris exposed to silver nanoparticles, manifested by decrement in Chlorophyll-a contents, morphological changes, prominent perforations in cell walls, important decrement of lipid contents and oxidative stress generation, that corresponding to the nanoparticle concentration.
EN PRENSA. La sustentabilidad de los sistemas agroforestales campesinos de San Andrés Calpan, Calpan, Puebla. EN PRENSA
Authors: Reyes Reyes Ana Karen , Ocampo Fletes Ignacio , Ramírez Valverde Benito , Ortiz Torres Enrique , Sánchez Morales Primo , Acosta Mireles Miguel
Published: October 2024

Los sistemas agroforestales (SAF) proporcionan beneficios económicos, socioculturales y ambientales. La combinación de elementos de la agricultura y forestaría los convierte en sistemas multifuncionales y más sustentables. El objetivo del estudio es evaluar la sustentabilidad de SAF con diferente manejo, en San Andrés Calpan, municipio de Calpan, Puebla, México. El estudio se realizó en dos etapas: en la primera se elaboró una caracterización, para lo cual se aplicó una encuesta a una muestra de 81 productores de una población de 527 registrados en PROAGRO. Se identificaron tres tipos: Sistema Agroforestal Tejocote (SAFT) y Sistema Agroforestal Capulín (SAFC) ambos con manejo tradicional, y el Sistema Agroforestal Manzana (SAFM) con un manejo especializado. En la segunda etapa se seleccionaron seis huertos, dos de cada sistema. Durante un año se registraron las actividades realizadas por los productores. Se utilizó el MESMIS (Marco para la Evaluación de Sistemas de Manejo de los Recursos Naturales incorporando Indicadores de Sostenibilidad). Es un estudio transversal comparativo, se analizaron 19 indicadores. Los resultados muestran que los SAF tradicionales tienden más a la sustentabilidad (66% para el SAFC y 61% para el SAFT); el sistema alternativo SAFM obtuvo un 45%. Se concluye que los SAF tradicionales son más sustentables.
GALNT3 in Ischemia–Reperfusion Injury of the Kidney
Authors: Wu Wenwen , Fu Ying , Li Honglin , Xiang Yu , Zeng Yuqing , Cai Juan , Dong Zheng
Published: October 2024

Key Points

N-acetylgalactosaminyltransferase-3 (GALNT3) was downregulated in both ischemic AKI and cisplatin nephrotoxicity.

GALNT3 played a protective role in renal tubular cells, and its downregulation contributed to AKI.

Mechanistically, GALNT3 protected kidney tubular cells at least partially through O-glycosylation of EGF receptor.

Background

Damages to subcellular organelles, such as mitochondria and endoplasmic reticulum, are well recognized in tubular cell injury and death in AKI. However, the changes and involvement of Golgi apparatus are much less known. In this study, we report the regulation and role of N-acetylgalactosaminyltransferase-3 (GALNT3), a key enzyme for protein glycosylation in Golgi apparatus, in AKI.

Methods

AKI was induced in mice by renal ischemia–reperfusion injury or cisplatin. In vitro, rat kidney proximal tubular cells were subjected to hypoxia/reoxygenation (H/R) injury. To determine the role of GALNT3, its specific inhibitor T3inh-1 was tested in mice, and the effects of GALNT3 overexpression as well as knockdown were examined in the rat renal proximal tubular cells. EGF receptor (EGFR) activation was induced by recombinant EGF or by overexpressing EGFR.

Results

GALNT3 was significantly decreased in both in vivo and in vitro models of AKI induced by renal ischemia–reperfusion injury and cisplatin. T3Inh-1, a specific GALNT3 inhibitor, exacerbated ischemic AKI and suppressed tubular cell proliferation in mice. Moreover, knockdown of GALNT3 increased apoptosis during H/R treatment in rat renal proximal tubular cells, whereas overexpression of GALNT3 attenuated H/R-induced apoptosis, further supporting a protective role of GALNT3. Mechanistically, GALNT3 contributed to O-glycosylation of EGFR and associated EGFR signaling. Activation or overexpression of EGFR suppressed the proapoptotic effect of GALNT3 knockdown in H/R-treated rat renal proximal tubular cells.

Conclusions

GALNT3 protected kidney tubular cells in AKI at least partially through O-glycosylation of EGFR.
Fractura metabólica o ecología mundo. Revisión de un debate en marcha
Authors: Llanos-de la Guardia Javier
Published: October 2024

Introducción: durante las últimas décadas la crisis ecológica ha impulsado un giro materialista en la teoría crítica, pero entre quienes han emprendido esta tarea existen también intensas discusiones. La escuela de la fractura metabólica y la teoría de la ecología mundo, dos de las corrientes más relevantes del marxismo ecológico, no son una excepción. Objetivo: en este artículo se realiza una revisión sistemática de la polémica entre estas dos corrientes organizándola en tres ejes temáticos. Metodología: primero, se ofrece una síntesis de la emergencia, evolución y principales aportes de la escuela de la fractura metabólica y de la teoría de la ecología mundo. Después, se aborda la discusión ontológica y epistemológica sobre la relación entre Sociedad y Naturaleza. A continuación, se tratan una serie de cuestiones conceptuales y analíticas: el carácter social, natural o singular del metabolismo; la naturaleza del cambio metabólico bajo el capitalismo y, por tanto, el carácter de la crisis ecológica; y, por último, la polémica sobre la teoría del valor, sobre su contenido, su validez, su alcance y sus límites. Conclusiones: para finalizar, se lleva a cabo un balance teórico de la discusión y se señalan algunas carencias los enfoques.
Catalyser l'autonomie ou habiliter le self-care?
Authors: MANGO Dore
Published: October 2024

Depuis les années ’80, un nouveau paradigme conceptuel oriente à l’échelle globale les choix politiques en matière de santé publique : il s’agit de l’idéologie selon laquelle une prévention passive des maladies devrait être remplacée par une action de « promotion de la santé ». Le principal objectif de cette démarche serait non seulement de délivrer les hommes du joug de leurs mauvaises habitudes sanitaires, mais – plus ambitieusement – de les constituer en tant que sujets moraux, enfin capables d’agir en vue de leur propre épanouissement personnel. Cette entreprise promotionnelle se fonde donc sur une tension intrinsèque : d’un côté, elle voudrait représenter l’achèvement du processus de responsabilisation des citoyens vis-à-vis de leur propre santé ; de l’autre, elle prône un modèle d’autonomie qui est chroniquement dépendante de l’intervention de différents acteurs institutionnels, en ce qu’elle demande à être constamment orientée – voire dirigée – par la proposition de recommandations officielles. Ne se contentant pas de catalyser l’autonomie qu’elle préconise, la promotion de la santé se livre donc à la réalisation d’un nouvel état de santé intégrale, où chaque individu viendrait combler son inaptitude constitutive au souci de soi par une habilitation institutionnelle au self-care.
Activité professionnelle et maladie chronique évolutive
Authors: CHILOTTI Pasquale
Published: October 2024

Cette communication présentera l’avancée d’une recherche action afin d’expliciter comment nous avons construit le dispositif 2P2R (Prévention Précoces des Risques de Rupture professionnelle en cas de maladie chronique évolutive). Nous considérons que ce n’est pas la pathologie qui de manière absolue rend la personne handicapée au travail, mais une situation professionnelle particulière qui liée à la maladie chronique ou aux effets secondaires des traitements suivis, entraîne des conséquences dans la réalisation de son travail. Celles-ci peuvent faire de la personne un « exclu potentiel », pour reprendre l’expression de Serge Ebersold (1994), du monde du travail. La précocité de l’accompagnement que nous proposons par rapport à l’annonce du diagnostic peut aider le bénéficiaire à franchir le seuil d’une construction identitaire. Comment faire de l’activité professionnelle une ressource pour que la personne puisse réaliser son travail de santé ? Comment la personne entre en relation avec la situation de travail rendue difficile du fait de la pathologie pour agir sur elle tout en étant transformée par elle ? Notre accompagnement serait alors un instrument à sa disposition pour passer de « l’expérience qu’on a » en « expérience qu’on fait » (Pastré, 2012, p. 120) et rendre à nouveau l’activité créatrice.
Autonomie, accompagnement et travail féministe
Authors: OURTILANE Dehia
Published: October 2024

Au sein d’une association féministe parisienne qui accueille des femmes exilées, le terme autonomie est utilisé au quotidien par les bénévoles. Cependant, cette notion renferme une tension (Schmoll, 2020). La mobilisation de ce terme révèle des aspirations émancipatrices - liées aux engagements féministes et aux parcours des exilées - mais aussi le risque de (re)production d’injonctions sociales. Interroger les rapports entre militantes et exilées permet de voir émerger une troisième actrice dans cette relation : militante-paire ou encore médiatrice-paire. Les militantes-paires sont des femmes engagées au sein de l’association possédant des compétences linguistiques et des savoirs expérientiels particuliers : ceux liés à l’exil. Le partage d’expériences et les langues communes sont des outils de soutien dans la démarche d’autonomisation (administratif, emploi). Cet article montre que leur présence permet de faire évoluer les formes de l’accompagnement social avec un travail en binôme (militante-paire et non-paire). Cependant, le statut des militantes-paires les restreint le plus souvent à des positions précaires et peu reconnues. L’étude des parties prenantes de cette relation permet de mieux comprendre les biais ethnocentrés des bénévoles non-paires, l’ambivalence de leur positionnement avec les exilées et illustrent une nouvelle forme d’intervention féministe.
Résister à l’exclusion dans les collèges de la très grande pauvreté
Authors: GARRIC Julien
Published: October 2024

Dans les collèges de la très grande pauvreté, l’exclusion de cours est devenue une pratique banalisée par les enseignants qui l’utilisent comme levier pour gérer les élèves perturbateurs dans leurs classes. Cette pratique s’appuie paradoxalement sur le paradigme de l’inclusion, la très grande diversité des élèves devenant un motif de justification de l’exclusion. En opposition, une petite minorité d’enseignants résiste à cette la logique de l’exclusion : leurs convictions et leurs pratiques pédagogiques et éducatives dessinent les perspectives d’une éducation inclusive.
Vertus et autorités maritale et parentale chez Aristote
Authors: ODAH Iyéwa Constant
Published: October 2024

Dans un langage aristotélicien, la forme constitue la partie essentielle de l’homme. Celle-ci détermine sa qualité. D’où la nécessité de cultiver les vertus qui sont habilitées à la rendre bonne. Dans la gestion domestique, Aristote élabore une stratification et décrit le rapport qui devrait exister entre les différents membres d’une famille. Il insiste sur le fait qu’il y a une vertu de commandement et une autre d’obéissance, et que le mâle est plus apte à commander. Tout en insistant sur les différentes sortes de vertus, notre article met en question l’acte d’obéissance de la femme. Nous avons examiné si cette obéissance est un signe de respect et ou de domination. Enfin, nous avons mis en relief le statut de la femme dans l’éducation des enfants.
Le Cameroun, la crise anglophone et la pression internationale
Authors: FOFACK Éric Wilson , POUNTOUGNIGNI NJUH Ludovic Boris
Published: October 2024

L’un des défis auquel les États du Sud sont confrontés est la difficulté de jouir pleinement de leur souveraineté face à l’hégémonisme des pays du Nord. Les crises sont une faille que ces derniers cherchent fréquemment à exploiter à cette fin. Cet article aborde la médiation comme instrument de géopolitique entre les mains des grandes puissances, dont l’arrimage aux luttes d’intérêts érode, au Sud, l’efficacité en tant que démarche de neutralisation des conflits. En prenant le cas du Cameroun après l’exacerbation de la crise anglophone en 2016, il s’agit d’une recherche qualitative qui s’appuie sur les données empiriques tirées des actes de communication diplomatique des grandes puissances et de l’État du Cameroun. L’objectif est de comprendre les tenants et les aboutissants des constructions discursives autour de la crise et des options de résolutions qu’elles ont proposées. Et comment, entre interventionnistes et souverainistes, l’État camerounais, bousculé par la crise, a réussi à préserver sa souveraineté et sa forme constitutionnelle. L’analyse révèle l’importance des pesanteurs historiques dans la construction des alliances politico-diplomatiques et le nivellement conservateur des relations de pouvoir dans certains États du Sud, malgré le contexte géopolitique propice à la multipolarité en ce début du XXIe siècle. Elle documente aussi le lien entre la raison « humanitaire » et le jeu des intérêts dans l’intervention des grandes puissances dans les crises sociopolitiques dans cette sphère.
Association between Serum Cortisol Level and Erectile Function in Healthy Men from the General Population
Authors: Babak Rezanezhad , Rasmus Borgquist , Saad Elzanaty
Published: October 2024

Purpose: The aim of the study is to investigate the association between serum levels of cortisol and erectile function in healthy men aged 45-60 years. Material and methods: The serum level of cortisol was measured. The international index of erectile function-5 items (IIEF-5) was used to assess the erectile function. Data were gathered on the age of participants, Body Mass Index (BMI), waist circumference, family history of cardiovascular disease, and their habits including alcohol consumption and smoking. Two subgroups were defined, based on the IIEF-5 total score: the normal erectile function group with an IIEF-5 total score ≥ 22 points, and the erectile dysfunction group with an IIEF-5 total score <22 points. Results: A positive significant correlation was found between cortisol levels and IIEF-5 total score (r = 0.299, p = 0.003). Cortisol level and IIEF-5 total score showed negative significant correlations with BMI (r = -0.276, p = 0.004), (r =-0.193, p = 0.041), respectively; and waist circumference (r = -0.319, p = 0.001), (r = -0.283, p = 0.003), respectively. Men with normal erectile function had significantly higher cortisol levels (377 nmol/L vs. 308 nmol/L, p = <0.001); significantly lower BMI (25 kg/m2 vs. 27 kg/m2, p = 0.005), and waist circumference (97 cm vs. 104 cm, p = <0.001) compared to men with erectile dysfunction. In multivariate regression analysis adjusted for the age of participants, alcohol consumption, smoking, and family history of cardiovascular disease, IIEF-5 total score showed a significant negative association only with waist circumference (β = -0.194, p = 0.031, 95% CI = -0.370, -0.018). Conclusions: To our knowledge, this is the first study to demonstrate a significant positive association between serum levels of cortisol and erectile function in healthy men. This association seems, however, to be affected by variations in body parameters, mainly waist circumference in such men.
LIFEPLAN Malaise sample metabarcoding v1
Authors: R. deWaard Jeremy , deWaard Stephanie , Kuzmina Maria , E Sones Jayme , Perez Kate , Thompson Amy , Hardwick Bess , Furneaux Brendan , Roslin Tomas , Zakharov Evgeny
Published: October 2024

In Project LIFEPLAN, bulk samples of arthropods are collected with Malaise traps and the species are identified with a non-destructive COI metabarcoding process. This protocol describes the steps for lysis, DNA extraction, PCR amplification, library construction, sequencing and sequence analysis, going from bulk arthropod samples to COI sequences, aiming at 1 million reads per bulk sample.
Labelling kelps with 13C and 15N for isotope tracing or enrichment experiments v2
Authors: Kuech Anton , Witte Ursula
Published: October 2024

Isotope tracing experiments can be used to trace organic material flow through the ecosystem by artificially adding labelled biomass into a system. The advantage of this process is the direct control of carbon and nitrogen addition to the system for measuring uptake rates by consumers which can substantially reduce the uncertainties associated with food web models. This protocol details the steps involved in successfully culturing and isotopically enriching (13C & 15N) juvenile sporophytes of two common North Atlantic kelp species (Laminariales): Saccharina latissima and Laminaria digitata. A first successful isotopic enrichment study of S. latissima, as well as the first inclusion of 15N enrichment for L. digitata, is detailed. This protocol provides a comprehensive description of the stable isotope enrichment process in two kelp species, potentially serving as a foundation for its application in other macroalgal taxa.
Protocol for Detection and Genotyping of Lumpy Skin Disease Virus (LSDV) using Oxford Nanopore Sequencing v1
Authors: Bajpai Manali , Khilari Ajinkya , Likhitkar Bhagyashree , Shanmugam Dhanasekaran
Published: October 2024

The protocol relates to nested multiplex PCR-based detection method for disease surveillance. In particular, the present disclosure provides a nested multiplex detection primer panel (NMDPP) to detect Lumpy Skin Disease Virus (LSDV) from the cattle sample. The present invention also provides a rapid, sensitive, and improved nested multiplex polymerase chain reaction employing said primer panel for detecting LSDV and its variants. The present disclosure relates to whole genome multiplex PCR-based genotyping method for viral variant studies. In particular, the present disclosure provides a multiplex primer panel (LSDV_WGSPP_3.5) to PCR amplify and genotype Lumpy Skin Disease Virus (LSDV) from the given cattle sample.
Relación entre calidad de lonchera y pH salival en escolares de una institución educativa primaria, Perú, 2023
Authors:   Universidad Señor de Sipán, Chavez-Fernandez Damaris Katherin , Rendon-Alvarado Alfredo Carlos Manuel ,   Universidad Católica Santo Toribio de Mogrovejo
Published: October 2024

Introducción: la ingesta de ciertos alimentos puede favorecer o afectar la salud buccal, dado que aquellos con elevada proporción de glucosa, sacarosa y almidón, producen más ácidos y poseen una elevada adhesividad, haciendo más lenta su eliminación, conllevando a la aparición y proliferación de lesiones cariosas debido a la propagación del ácido en los dientes, retención prolongada o variación del nivel de pH salival. El objetivo del estudio fue determinar si existe relación entre la calidad de la lonchera y el pH salival en escolares del quinto grado de primaria de la Institución Educativa Pública (I.E.P.) Inmaculada Concepción de Monsefú, durante el año 2023. Metodología: el estudio fue descriptivo con intención analítica y correlacional. La muestra estuvo conformada por 123 escolares de quinto grado de primaria de la I.E.P.; se les tomaron muestras de saliva en 4 momentos, antes y después de consumida su lonchera, sea saludable o no, determinando su pH salival según edad y sexo; se aplicó análisis descriptivo, así como análisis de regresión y varianza. Resultados: los escolares con lonchera saludable presentaron un pH salival neutro a 5 minutos (promedio: 6,5), 30 minutos (promedio: 6,8) y 60 minutos (promedio: 6,9) posteriores a la ingesta de la lonchera, a diferencia de aquellos con lonchera no saludable, quienes presentaron un pH salival ácido a 5 minutos (promedio: 5,7), a 30 minutos (promedio: 6,0) y a 60 minutos (promedio: 6,1). Conclusión: existe correlación positiva y moderada entre el pH salival y el tipo de lonchera escolar que ingieren los escolares estudiados.
A Comparison Study of Some Metaheuristic Methods for Field Oriented Control Based Induction Motors
Authors: Al-dawoodı Hersh Hasan Taha , Aygün Hilmi
Published: October 2024

Thanks to the accuracy, high reliability and excellent performance, field-oriented control (FOC) based induction motor (IM) drives are used in power applications. Generally, three PI controllers are used for speed control, and decoupling control of torque and flux by d-q components of stator current in FOC based IM. Most of the time, the gains of these PI controllers are tuned by trial and error or Ziegler Nichols method. However, these methods cannot provide a high dynamic response. In this paper, some metaheuristic methods such as Grey Wolf Optimization (GWO), Artificial Bee Colony (ABC) and Particle Swarm Optimization (PSO) algorithms are used to determine the optimal values of the PI controller parameters to improve the dynamic performance of FOC based IM. The simulation results show that the best dynamic performance is obtained by GWO algorithm although its convergence speed is slower than the used other algorithms.
CHINA'S ROLE IN MODERN WORLD POLITICS
Authors:   Zaporizhzhia National University, Zaporizhzhia, Ukraine, Dashko Iryna , Mykhailichenko Lubomir ,   Zaporizhzhia National University, Zaporizhzhia, Ukraine
Published: October 2024

The article examines the role of China in modern world politics. China's share in the world economy in 2022 is analyzed. The key factors that contributed to the country's growth are identified. The dynamics of China's GDP growth in 2010-2022 is studied. China's place in the global competitiveness ranking for 2021-2022 is substantiated. The inflow of FDI is analyzed, which is cyclical in nature, since investments are a direct indicator of crises. It is noted that China's economic expansion is expanding and its influence in the world is increasing due to the formation of dependence on China as both an exporter and an importer. The data of the Global Innovation Index report, where China is among the 20 most innovative countries in the world, are substantiated. The foreign policy of the People's Republic of China is studied and its basic principles are determined. It is substantiated that China has a strong economy and a strong competitive position in the world economy, which allows China to position itself as one of the world leaders in the international arena. The economic power of China is determined. Xi Jinping's foreign policy is substantiated. It is revealed that over the years, China has made significant progress in transforming into a dynamic, knowledge-based economy and has managed to introduce new rules to cope with the governance challenges posed by the onset of the currency crisis, pandemic and the 2022 crisis. It is investigated that China currently accounts for almost a third of world exports and imports. The role of China in world politics is studied on the example of its position on the war in Ukraine and relations with Russia. China's place in the world ranking of countries according to the Innovation Index for 2020-2022 is studied. It is noted that in its foreign policy, China adheres to five basic principles, in particular: mutual respect for territorial integrity and sovereignty, non-aggression, non-interference in the internal affairs of another country, equality and mutual benefit, and peaceful coexistence. The dynamics of Russian exports to China is analyzed.
THE ROLE OF CHINA IN CONTEMPORARY INTERNATIONAL LAW
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Yedeliev Roman , Spivak Vladyslav ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: October 2024

In this article, China's practices in international trade, human rights, territorial disputes, and information technologies, are analyzed. The author emphasizes that China is ready to challenge international law when it conflicts with its interests. The article also highlights that China does not recognize the obligation to implement decisions of international courts and its national institutions refrain from engaging in human rights protection. The following methods were employed in the course of this research: systemic, comparative legal, historical and legal, structural and functional, and generalization. The author researches China's interest in the stability of rules of international law and its ability to interpret them freely, including in relation to the Russian-Ukrainian war. It was found that China is interested in applying existing international law rather than creating specific new norms, which aligns with its stance on sovereignty and non-interference. Special attention is paid to China's strategic approach to international law, balancing between adherence and reinterpretation to align with national interests.