bluuebunny/crossref_metadata_2025_split huggingface dataset:
"Dinámicas escolares en contextos de pobreza" con especial referencia al objeto de trabajo, niñxs de sectores marginalizados, y su impacto en la realización de la tarea primaria
Authors: Silva Ana María 
Published: May 2023

Este artículo presenta resultados de una investigación en curso. El estudio se propone avanzar en la comprensión de las dinámicas institucionales de escuelas que atienden poblaciones vulnerables y logran resultados en términos de aprendizajes.
Nuestro interés se concentra, en describir y comprender estas dinámicas con especial referencia a los procesos de crisis y recuperación institucional, las rupturas, los puentes, las continuidades y las respuestas que se tejen en un espacio institucional, que atiende a población que habita los enclaves de la pobreza, y donde la educación es posible.
El trabajo tendrá por objeto describir de qué modo la significación y representaciones que adquiere el objeto de trabajo en la cultura escolar se vincula con la modalidad de llevar adelante la tarea primaria y el funcionamiento institucional. Como así también desarrollar una serie de hipótesis vinculadas con los rasgos de la organización y su funcionamiento que parecen vinculados con el aprendizaje de los alumnos.
El abordaje histórico y situacional de un estudio que abarcó más de veinte años, en un establecimiento con casi 70 años de historia, nos permitirá también establecer relaciones de interés entre los diferentes momentos socio históricos del país, las políticas educativas implementadas y su impacto en el funcionamiento de la escuela desde su fundación hasta la actualidad;
El caso de estudio se trata de una escuela primaria, perteneciente al Distrito Escolar del Partido de Gral. San Martín. Provincia de Buenos Aires.
La metodología incorpora el enfoque institucional en el análisis y se toman aportes de la investigación cualitativa y clínica en especial.
Hacia una epistemología decolonial bio céntrica latinoamericane
Authors: Sepúlveda Arellano María José 
Published: May 2023

La transformación sociopolítica a la que está apostando una masa considerable del territorio-cuerpo-nación de Chile, invita a cuestionar nuestra ética y posicionamiento político a la hora de producir conocimiento. Se realiza un análisis crítico de la realidad de ls cientistas sociales de la región Latinoamericana, cuestionando la producción de conocimiento y la sostenibilidad de este en un contexto global capitalizado y gobernado por el tecnicismo. Postulando la importancia de aprender a sostener las preguntas e incertidumbres en el periodo de transición sin abandonar un enfoque critico que incorpore la transindividualidad y decolonialidad.
The Energy Management System According to the Norm ISO 50001
Authors: Bago Drago , Bešo Ena , Kujundžić Goran 
Published: May 2023

Abstract
The final paper presents an approach to solving the problem of optimal use of electrical energy in the production process. An analysis of all important parameters, limitations, and goals was performed, after which a mathematical model was created and used in writing Matlab code to solve the problems. It is the basis for further upgrading following the needs of each organization and because of that, it can be very significant.
Legal Nature of Concessionaire and Public-Private Partnership Contracts
Authors: Bano Elona , Ahmeti Edmond 
Published: May 2023

Abstract
This paper aims to analyze the legal nature of concessionaire and PPP contract in Albanian Legislation and through the perspective of European legislation analyzing mainly the Italian and French legislation and doctrine in this area. The main hypothesis that this paper aims to address is related to the fact, if it is enough to categorize these kinds of contracts with a hybrid status between public and private law, or the fact that so many countries appellate more and more to the concessionaire and PPP contracts is the momentum to create a separate law discipline as so many universities in France, USA, Japan do. Also, this paper aims to make a comparative study of Albanian legislation in the area of concessionaire and PPP contracts with the European legislation being the fact that for Albania this is a new area, and is a considerable lake of doctrine and legal studies that analyze the specifics and characteristics of such kind of contracts, putting at the last instance not only the Albanian contractual authorities but also the national courts in difficulties of implementation and interpretation.
Innovative School Leadership Aspects
Authors: Nebieridze Khatuna 
Published: May 2023

Abstract
This study examines the managerial role of five school principals in Tbilisi in sustaining success and innovation. It describes the management and leadership practices of five school principals, who are considered to be innovative, well-managed, with excellent academic results, and highlights the principals’ own contributions for school innovation and success. The study used the case study method based on the qualitative research method. At each school, opinions on school governance were gathered through individual interviews with the school principal, representatives of local resource centers, and other members of the school board. students and members of the school community. This study provides insight into organizational culture and school changes, as well as the principal role of principals in creating and managing a successful and innovative school. The study uses stakeholder perspectives on school leadership and school performance to provide us with insight into school management in each case, as well as draw attention to differences and similarities between different cases. The research findings highlight the importance of principals’ life experiences in determining their management style and values. Innovative principals identify five common aspects of leadership and related behaviors that characterize their leadership style and underpin the success of their schools. Furthermore, innovation schools have common characteristics. A map of how the principal’s management style and school innovation and success, life experience, five managerial aspects and corresponding behaviors, and other elements of school success are related to innovative aspects of management and leadership has been developed. Realizing what works in successful and innovative schools is the preliminary step in determining how to direct the practice of such schools to those parts of the school that require this experience. The current study demonstrates an innovative management style, demonstrating that some principals are very successful in creating an innovative culture, including behavioral patterns that can be learned and used by people aspiring to innovative and successful school management.
The Procedure for Restructuring Budgetary Claims from Necessity to Reality
Authors: Onet Cristina 
Published: May 2023

Abstract
The present work approaches the legal institution of the restructuring of budgetary claims from the perspective of the procedure to be followed by the tax debtors interested in agreeing on the need to extinguish their budgetary claims with the desire to avoid the insolvency of the company. We bring up that the restructuring of budgetary claims was thought so as to offer a helping hand, especially to large companies in a situation of major financial difficulty. This present study aims to provide a synthetic picture of the steps to be followed in order to successfully complete this procedure. For this, the procedure is divided into three stages, namely the pre-stage, the procedure itself and the completion of the procedure. The acts to be performed at the pre-stage refer to the notification of the restructuring intention, the restructuring plan and the prudent private creditor test. The stage itself of the restructuring starts with the submission of the application to the tax authority, which will be settled by it either with a decision approving the restructuring or with a decision rejecting it, or with a decision approving a payment facility. Once the restructuring is approved, it will be carried out in accordance with the restructuring plan, under the supervision of the persons designated for this purpose. During its development, the restructuring process may undergo changes that will materialize either in the modification of the restructuring plan or in the modification of the payment facilitation decision, if such a facility has been approved. Whether there is a change in the restructuring process, or not, once it has started, it will have to be completed. If the restructuring plan is successfully implemented, the fiscal debtor’s budgetary claims will be extinguished and he will be able to go on with the economic activity for which he was established. If, however, the restructuring plan fails, the tax debtor risks being subject to forced execution by the tax authority, or even to request its insolvency, which could lead to the cessation of its existence.
Antimutagenic 1,4-Dihydropyridine AV-153 Normalizes Expression of GLUT1, GLUT4, INOS, PARP1, and Gamma H2AX Histone in Myocardium of Rats with Streptozotocin Model of Diabetes Mellitus
Authors: Rostoka Evita , Isajevs Sergejs , Sokolovska Jeļizaveta , Duburs Gunārs , Sjakste Nikolajs 
Published: May 2023

Abstract
Diabetic cardiomyopathy increases the risk of heart failure and worsens prognosis for diabetes mellitus (DM) patients. Its development depends on many factors, including modification of nitric oxide production and impaired DNA repair. The goal of the present work was to study in vivo effects of a 1,4-dihydropyridine AV-153, known as antimutagen and DNA-binder, on DNA integrity, and on the expression of several proteins involved in glucose transport, nitric oxide metabolism, and DNA repair in myocardium in diabetic rats. DM was induced in rats by streptozotocin (STZ) injection. Expression of proteins was studied by means of immunohistochemistry. Development of the STZ-induced DM significantly induced PARP1 and gamma H2AX histone, markers of DNA breakage, protein expression in heart tissue, while AV-153 administration decreased PARP1 and H2AX protein expression. In this model of diabetes, myocardial expression of iNOS was also significantly increased, but administration of AV-153 reduced it to normal levels. AV-153 also upregulated the expression of insulin-dependent GLUT4 and insulin-independent GLUT1 glucose transporters up to normal level in diabetic rats. Thus, AV-153 appears to be prospective for creation of a remedy for prevention of diabetic cardiomyopathy.
PERFIL DO SEGURADO SUBMETIDO A REABILITAÇÃO PROFISSIONAL OFERECIDA PELO INSS: UMA ANÁLISE DE CASO
Authors: Santos Alexandre Magno Borges Pereira , Betanho Cristiane , Lopes José Eduardo Ferreira , Paulo Renata Rodrigues Daher 
Published: May 2023

Introdução: O Instituto Nacional do Seguro Social (INSS) é a autarquia federal legalmente incumbida de concretizar as políticas públicas da previdência social. A reabilitação profissional é um dos serviços oferecidos pelo INSS, e deve proporcionar meios para a (re)educação e (re)adaptação profissional e social do segurado incapacitado, com vistas a possibilitar o seu reingresso no mercado de trabalho e sua inclusão social no contexto em que vive. Percebe-se, assim, que a reabilitação profissional envolve conceitos de trabalho, de saúde e de educação. Objetivo: Este artigo tem por objetivo analisar o perfil básico do trabalhador acolhido no serviço de reabilitação profissional do INSS em Uberlândia/MG. Metodologia: Em termos metodológicos, trata-se de um estudo de caso, de natureza quantitativa. A unidade de análise são os segurados desligados no ano de 2017 e foram analisados dados secundários extraídos pelo INSS de processos físicos de acompanhamento dos reabilitandos. Descreveram-se o procedimento adotado pelo setor de reabilitação profissional do INSS e o perfil do segurado submetido a reabilitação profissional. Principais resultados: Concluiu-se que alguns aspectos da amostra contrariavam os prognósticos fornecidos pelo referencial teórico e que outros os confirmavam. Conclusão: O universo da amostra é semelhante ao dos estudos anteriores (composição etária, remuneração média, nível de escolaridade). Contudo, alguns resultados contrariam os indicados por eles, tais como quantidade de inelegíveis por possibilidade de retorno ao trabalho, quantidade de segurados desligados do programa sem passar por nenhum curso de capacitação ou treinamento profissional. Além disso, os resultados sugerem que a responsabilidade pelo sustento da família tem importância no sucesso da reabilitação profissional e que o fato de o segurado receber um benefício de valor superior prejudica o sucesso da reabilitação profissional. Contribuições teóricas e práticas: Ao final, foi possível contribuir com um bom diagnóstico da situação. Estas informações podem subsidiar a tomada de decisões administrativas.
Gliding Arc Plasma-Controlled Behaviors of Jet-Wake Stabilized Combustion in a Scramjet Combustor
Authors: Feng Rong , Meng Zhipeng , Zhu Jiajian , Sun Mingbo , Wang Hongbo , Yang Yixin , Wang Chenglong , Zhang Fan , Ban Yangyang , Yan Bo , Wang Chao , Liu Xu , Wang Zhenguo 
Published: May 2023

A multichannel gliding arc (MCGA) plasma is used to control the jet-wake stabilized combustion in a Mach 2.92 cavity-based and ethylene-fueled scramjet combustor. Optical diagnostic methods (including high-speed photography, schlieren, and planar laser-induced fluorescence with acetone tracer) combined with plasma kinetic simulations and Reynolds-averaged Navier–Stokes/large-eddy simulations were employed to investigate the combustion behaviors. The results show that the flame is mainly located near the cavity leading edge and operated at the jet-wake stabilized mode. When the MCGA plasma is added at the upstream wall of the cavity leading edge, the vigorous region of the flame spreads upstream 6.5 times longer than the original one without the plasma. Once the plasma is turned off, the flame returns back to the cavity leading edge. The species [Formula: see text] (Nitrogen in the excited state) and hydrogen atoms produced by the plasma are favorable for igniting the flame near the plasma, and the average penetration depth of the fuel above the plasma is increased by about 10%. Intense combustion near the plasma occurs with higher pressure, establishing the recirculation zone with the boundary-layer separation. The combined effects of the reactive species produced, the elevated temperature, and the modified flowfield induced by the plasma contribute to the MCGA-controlled behaviors of jet-wake stabilized combustion.
Influência do uso de fármacos na regressão da placa aterosclerótica
Authors: Ferreira Gustavo Henrique , Ferreira Júnior Moacir 
Published: May 2023

Objetivo: Investigar como as ações farmacológicas influenciam na regressão da placa aterosclerótica. Métodos: Trata-se de uma pesquisa descritiva sendo a técnica de pesquisa a revisão bibliográfica, com consultas a partir de 2018 até 2023, no Google Acadêmico e SciElo, em português e inglês, sendo referenciados, 20 artigos. Resultados: Doenças cardiovasculares são ditas como principal motivo de morbidade e mortalidade e a aterosclerose é, a nível global, a causa primária de morte nas últimas 5 décadas. A aterosclerose coronária é considerada uma das patologias mais prevalentes na população brasileira, indicando, ainda, incidência em indivíduos considerados jovens, tendo fatores de risco modificáveis ou não modificáveis. É dita como um processo resultante da infiltração por leucócitos da parede arterial e acúmulo de lipídios, em destaque o colesterol-LDL, em que a etapa do processo patológico tem início com a disfunção endotelial, porém, há fatores de risco que implicam nas modificações, mas, há o uso de estatinas para intervenção na regressão e progressão da placa. Considerações finais: Conclui-se que o uso de estatinas realmente influenciam para a regressão e progressão da aterosclerose, corroborando, assim, o objetivo do presente estudo.
Effect of longitudinal force on technological parameters of repair of curved pipeline
Authors: Варшицкий Виктор Миронович , Фигаров Эльдар Намикович , Лебеденко Игорь Борисович , Козырев Олег Александрович 
Published: May 2023

Для проведения ремонта подземных магистральных нефтепроводов зачастую возникает необходимость подъема трубопровода, что предполагает перемещение заполненной трубы в вертикальной и горизонтальной плоскостях. Хотя выполнение ремонтных работ в большинстве случаев происходит в условиях остановки перекачки нефти, в сечении трубопровода, как правило, действует продольное усилие, обусловленное температурным перепадом и внутренним давлением столба перекачиваемого продукта из-за вертикального профиля. Известно, что практически всегда трубопровод имеет начальную кривизну оси, и в этом случае продольное усилие существенно влияет на технологические параметры ремонта. В статье приведено решение задачи определения технологических параметров ремонта криволинейного участка трубопровода с учетом продольного сжимающего усилия. Проведен анализ напряженно-деформированного состояния поднимаемого при выполнении ремонта трубопровода в зависимости от радиуса кривизны основания, направления изгиба оси трубопровода, высоты подъема, температурного перепада. Полученное решение может быть использовано при разработке проекта ремонта подземного трубопровода для оценки протяженности участка вскрытия траншеи и определения усилия на крюк трубоукладчика.
To repair underground main pipelines, it is often necessary to lift the pipeline, which requires moving the filled pipe in the vertical and horizontal planes. At that, a longitudinal force acts in the pipeline section, as a rule, due to temperature difference and internal hydrostatic pressure. It is known that almost always the pipeline axis is curved, and, in this case, the longitudinal force significantly affects technological parameters of the repair. The paper provides a solution to the problem of determining repair technological parameters for the pipeline curved section taking into account longitudinal compressive force. Analysis of stress-strain state of the pipeline being lifted during repair depending on the base curvature radius, direction of pipeline axis bending, lifting height, and temperature difference was carried out. The resulting solution can be used in the development of an underground pipeline repair project to estimate the length of trench opening section and to determine the force acting on the pipe-layer hook.
Prospects of application of honeycomb elements in groove seal assemblies of mainline pump rotors
Authors: Флегентов Илья Александрович , Старшинов Дмитрий Михайлович , Рябцев Егор Андреевич 
Published: May 2023

Основным видом щелевых уплотнений роторов магистральных насосов для перекачки нефти и нефтепродуктов являются плоские щелевые уплотнения. Их применение позволяет обеспечить сокращение объемных потерь перекачиваемой среды из напорной области во всасывающую через зазор между ротором и статором – перетечек, которые являются одним из факторов снижения объемного КПД насоса при эксплуатации. В качестве щелевых уплотнений для магистральных насосов типа НМ наиболее распространены плоскощелевые и плоскощелевые ступенчатые уплотнения. Однако при их использовании величина объемных потерь остается ощутимой (для насосов большой мощности – до 1 % в полном КПД насоса), что требует соответствующих технических решений. Целью настоящей работы является совершенствование узла щелевого уплотнения для сокращения перетечек и, соответственно, повышения энергоэффективности магистрального насоса. Авторами проведено исследование с оценкой технической целесообразности применения сотовых уплотнений в узлах щелевых уплотнений роторов магистральных насосов. По результатам компьютерного моделирования течения в проточных частях зазоров установлено, что сотовые уплотнения обеспечивают снижение объемных потерь расхода в проточной части магистрального насоса и превышают характеристики применяемых в настоящее время плоских щелевых уплотнений. Разработаны требования к сотовым уплотнениям рабочих колес с учетом параметров эксплуатации магистральных насосов НМ.
The main type of groove rotor seals for mainline pumps for oil and oil products are flat groove seals. Their use allows for the reduction of volumetric losses of the pumped medium from the discharge area to the suction area via the clearance between the rotor and stator - overflows, which are one of the factors reducing the volumetric efficiency of the pump during operation. The most commonly used groove seals for NM mainline pumps are the flat-groove and flat-groove stepped seals. However, when they are used, the value of volumetric losses remains tangible (for high-capacity pumps – up to 1 % of overall pump efficiency), which requires appropriate technical solutions. The purpose of this work is to improve the groove seal assembly in order to reduce overflows and, as a result, improve the energy efficiency of the mainline pump. The authors conducted a study to assess the technical feasibility of using honeycomb seals in groove seal assemblies of mainline pump rotors. According to the results of computer simulation of the flow in the flow paths of clearance, honeycomb seals reduce volumetric flow losses in the flow path of the mainline pump and outperform the characteristics of the currently used flat groove seals. We have developed requirements for honeycomb seals of impellers, taking into account the operating parameters of NM mainline pumps.
Dedicated to 30th anniversary of Transneft. Glavtransneft: creation of a unified oil pipeline system
Authors: Сощенко Анатолий Евгеньевич 
Published: May 2023

Представлен исторический обзор развития системы нефтепроводного транспорта в СССР (России). Отмечено, что с созданием в 1970 году Главного управления по транспортированию и поставкам нефти (Главтранснефти) произошло объединение стремительно расширяющейся в связи с разработкой новых нефтяных месторождений сети магистральных нефтепроводов в рамках единой системы управления. Проанализированы основные технико-экономические показатели работы нефтепроводного транспорта в нашей стране в 1970–1985 годах, проведено сравнение с зарубежными данными (показателями работы магистральных нефтепроводов США, Западной Европы, Японии). Показано, что следствием развития отрасли в указанный период стало формирование одной из крупнейших в мире нефтепроводных систем. Действовавшая под управлением Главтранснефти система магистральных нефтепроводов являлась целостной технологической и экономической структурой с централизованным распределением грузопотоков нефти, обеспечением технической эксплуатации объектов, их диагностирования, планово-предупредительного капитального ремонтов, технического перевооружения и реконструкции. Рассмотрены проблемные вопросы обеспечения эффективности работы отечественного нефтепроводного транспорта в 1985–1991 годах, показаны основные изменения организационной структуры и механизма управления транспортом нефти в новых экономических условиях.
A historical overview of the development of the oil pipeline transport system in the USSR (Russia) was provided. With the establishment of the Main Directorate for Oil Transportation and Supply (Glavtransneft) in 1970, the rapidly expanding network of main oil pipelines due to the development of new oil fields was united under a single management system. The basic technical and economic indicators of oil pipeline transport in our country from 1970 to 1985 were examined, and they were compared to foreign data. It is shown that the consequence of the development of the industry during this period was the formation of one of the largest oil pipeline systems in the world. Glavtransneft’s main pipeline system was an integral technological and economic structure that included centralized distribution of oil commodity flows, technical operation of facilities, diagnostics, repairs, technical upgrades, and reconstruction. The problematic issues of ensuring the efficiency of domestic oil pipeline transport from 1985 to 1991 are discussed, the major changes in the organizational structure and management mechanism of oil transport in the new economic conditions are shown.