bluuebunny/crossref_metadata_2025 huggingface dataset:
Quatro anos de intervenção arqueológica no Espaço Cidadão (Palmela). Os principais resultados e algumas questões
Authors: Nunes João , Porfírio Eduardo , Teixeira Santos Michelle
Published: March 2023

Apresentação dos resultados das intervenções arqueológicas realizadas no âmbito da reabilitação do edifício Espaço Cidadão, desenvolvidas entre 2011 e 2015, que forneceram um conjunto de informação sobre a evolução da urbe de Palmela, desde o Período Medieval até ao século XX. A sequência construtiva deste edifício, de arquitectura quinhentista, organizou-se segundo três grandes momentos construtivos: um primeiro do Período Tardo-medieval e inícios do Período Moderno (séculos XIII/XIV-XVI); seguido de uma nova fase, com a introdução de novos elementos arquitectónicos no Período Moderno (séculos XVI-XVIII) e por fim, as profundas reformulações da fase pós-terramoto (final do século XVIII ao século XX). É possível que alguns elementos deste conjunto estrutural possam relacionar-se com a presença da comunidade cristã-nova de Palmela e as suas práticas religiosas, referida no Foral dos Mouros Forros e em processos da Inquisição do tribunal do Santo Ofício.
Uma sepultura de mesa na Ponta do Verde (Tróia)
Authors: Vaz Pinto Inês , Patrícia Magalhães Ana , Brum Patrícia , Figueiredo Margarida , Araújo dos Santos Filipa , Gabriel Sónia
Published: March 2023

Apresenta-se a escavação de uma sepultura de mesa identificada na vertente de uma duna no sítio arqueológico de Tróia e os seus resultados. Os trabalhos arqueológicos revelaram uma caixa tumular intacta, com o esqueleto de uma mulher, com cobertura, já incompleta, em opus signinum com uma placa de mármore incrustada, e sobreposta por vestígios de ocupação mais tardios. O estudo dos contextos que a envolviam sugere que a sepultura date da segunda metade do século IV, e a utilização de tijolos novos e homogéneos, a grande dimensão da cobertura e o seu relativo isolamento sugerem uma sepultura, se não privilegiada, pelo menos de alguém com alguma importância na comunidade.
OPISTHOBRANCH (MOLLUSCA: GASTROPODA) FAUNA OF ROCKY REEF ECOSYSTEMS OF KERALA COAST, INDIA
Authors: Thambi Baiju Puthuparambil , Prabhakaran M. P. , Ajas Miraj C. H. , Kiran J. , Benno Pereira F. G.
Published: March 2023

Opisthobranchs are the one of the least studied marine taxonomic group in Kerala. The present study was carried out to explore the opisthobranch diversity of rocky reefs of Kerala. And the study able to record the 13 species of sea slugs belongs to 3 Order 8 Families and 10 Genera. Out of 13 species recorded in the study, 8 species identified as new to Kerala coast. Among the 3 Orders recorded in the study Nudibranchia was noted with highest species contribution of 10 species and among the 8 families, the Dentrodoridae with maximum of 3 species.
Deixar morrer para manter a economia: necropolítica e pandemia
Authors: Venera José Isaías , Silva Eduardo , Severino José Roberto , Chamorro Jorge Felipe Henríquez
Published: March 2023

Este artigo é resultado de uma pesquisa em andamento, de natureza qualitativa, que tem como objetivo analisar os discursos do presidente da república, Jair Messias Bolsonaro (sem partido), em suas lives semanais, tendo como recorte desde o primeiro vídeo, de 27 de fevereiro de 2020, após o primeiro caso de Covid-19 no Brasil, em 26 de fevereiro de 2020, até o último do primeiro semestre, em 25 de junho de 2020. No centro da análise, estão as relações das falas do presidente com a desinformação, aproximando as práticas discursivas da necropolítica, conceito desenvolvido pelo filósofo camaronês Achille Mbembe. Ao todo, foram 15 lives analisadas com foco na pandemia e na nomeação, pelo presidente, de fake news às críticas recebidas pelos órgãos de imprensa. Com a pesquisa, considera-se que o presidente usa a expressão fake news para desqualificar as críticas recebidas, ao passo que produz sistematicamente desinformação para minimizar a pandemia. Sua posição discursiva faz com que os trabalhadores, aqueles que contribuem com a produção, sejam incluídos no devir negro, ou seja, na produção e naturalização da morte que poderia ser evitada.
O CUIDADO AO IDOSO DURANTE A PANDEMIA DA COVID-19: REVISÃO INTEGRATIVA
Authors: Souza Juliana Rosa de , Sandri Juliana Vieira de Araujo , Alves Marta Machado
Published: March 2023

Resumo: Objetivo: analisar o cuidado ao idoso frente a pandemia da COVID-19 (Coronavirus Disease 2019), no contexto da família e da enfermagem. Método: estudo de revisão integrativa, sobre artigos indexados na Biblioteca Virtual de Saúde; Scientific Electronic Library Online e Google Scholar, em português, publicados entre março a outubro 2020. A estratégia de busca foi organizada conforme a especificidade de cada base de dados usando os operadores boleanos e os descritores: idoso, família, coronavírus, pessoas confinadas no lar, prevenção, enfermagem. Resultados: identificados 120 artigos na Biblioteca Virtual de Saúde; 110 Google Scholar e 35 Scientific Electronic Library Online. Após seleção resultou em 35 artigos, que posteriormente, foram reavaliados, totalizando quatro artigos, destes 50,0% na Scientific Electronic Library Online e 50,0% na Biblioteca Virtual de Saúde; 1 artigo por revista, 25,0%; localização territorial do periódico foi a região sul (50,0%); categoria profissional dos autores foi de enfermeiros 49,9% e;  100,0% utilizou a abordagem qualitativa. A síntese do conhecimento está apresentada em dois temas: o cuidado familiar junto aos idosos frente à pandemia da COVID-19 e; assistência de enfermagem ao idoso na pandemia da Covid-19. Conclusão: evidenciou-se a fragilidade da pessoa idosa frente à COVID-19 e fez emergir a necessidade de novos olhares sobre o cuidado familiar e de enfermagem ao idoso diante do isolamento social.
INTERVENÇÕES PSICOSSOCIAIS EM PACIENTES COM DOENÇA PULMONAR OBSTRUTIVA CRÔNICA NA PERSPECTIVA DA PANDEMIA DE COVID-19
Authors: Batista Bárbara Uchôa
Published: March 2023

Introdução. As práticas psicossociais são fundamentais no tratamento de pessoas com doença pulmonar obstrutiva crônica (DPOC). Então, repensar em adaptá-las ao cenário da pandemia do coronavírus 2 (SARS-CoV-2), torna-se uma necessidade emergente. Objetivo. Mapear as principais intervenções psicossociais em pacientes com diagnóstico de doença pulmonar obstrutiva crônica (DPOC), bem como avaliar os tratamentos de reabilitação pulmonar, com a utilização da tecnologia da informação e comunicação (TICs). Metodologia. Trata-se de uma revisão bibliográfica qualitativa embasada na análise de conteúdo. Para Bardin este método parte do princípio de três etapas: pré-análise, consiste na leitura minuciosa e levantamento de hipóteses; averiguação do material e os resultados para as interpretações. Resultados. A análise dos dados contemplou três categorias: reabilitação pulmonar propostas emergentes; inovação no âmbito tecnológico para pacientes com DPOC e impacto do adoecimento biopsicossocial em que aferiu as principais abordagens no tratamento da DPOC. Considerações finais. Por conseguinte, verificou-se a necessidade de encontrar formas acessíveis e satisfatórias para os usuários das práticas terapêuticas que auxiliam na qualidade de vida dos pacientes.
REDES DE PROTEÇÃO, ARTICULAÇÃO E CUIDADOS PARA PESSOAS EM SITUAÇÃO DE SOFRIMENTO E DESEJO SUICIDA NO SUL DO BRASIL
Authors: Marinho Benfica Vanessa Brenerk
Published: March 2023

Resumo: O fenômeno suicídio cercado por tabus, estigma, preconceito e discurso raso, vem nos últimos tempos sendo pauta de discussão e preocupação no âmbito da saúde pública num alcance global. Embora haja políticas públicas voltada a prevenção contra o suicídio, campanhas, tabus descontruídos e preconceitos sendo discutidos, o suicídio tem se tornado ponto de muita preocupação pois, índices entre jovens com idade de 15 a 35 anos, vem aumentado consideravelmente em diversos países. O tema suicídio é complexo e diversificado, devendo ser compreendido por um prisma que compõe muitas faces e elementos que vão além de configurações como, transtornos psiquiátricos, traumas, conflitos, falências ou decepções. Pensando na emergente situação do aumento de casos de suicídio no país, esse trabalho buscou refletir a importância das políticas públicas e redes de proteção voltadas ao tema em questão, deste modo, mapeou-se a região da Associação dos Municípios da Foz do Rio Itajaí - AMFRI (composta por onze municípios no Sul do Brasil), Redes de Proteção locais nos quais a população dessa região tem acesso a informações e auxilio para si ou terceiros que se encontram em pensamento suicida. O objetivo desse trabalho foi fazer um levantamento dos locais e criar um blog como ferramenta tecnológica na qual disponibiliza as informações necessárias e os locais de Redes de Proteção, Articulação e Cuidados oferecidos. O Sistema Único de Saúde – SUS configura as redes de proteção, auxilio e enfrentamento ao suicídio, sendo no Brasil o mais amplo e indispensável acesso da população. Essa é uma pesquisa qualitativa e quantitativa com análise de dados bibliográficos em Base de Dados e documentos específicos que compõe as legislações vigentes da saúde como Ministério da Saúde do Brasil e Organização Mundial da Saúde – OMS. Palavras-chave: Suicídio. Redes de Proteção. Acolhimento e Enfretamento. SUS.
AVALIAÇÃO DAS CONCENTRAÇÕES SÉRICAS DE ZINCO EM PACIENTES COM DOENÇA INFLAMATÓRIA INTESTINAL
Authors: Tomazi Luciane
Published: March 2023

A deficiência de micronutrientes é evidente em pacientes acometidos pela Doença Inflamatória Intestinal, dentre eles o mineral zinco. Este mineral tem importantes aplicações clínicas no organismo incluindo o reparo tecidual. O objetivo do presente estudo foi avaliar as concentrações séricas de zinco e sua relação com a DII. Estudo quantitativo, retrospectivo e descritivo, no qual foi coletado valores séricos de zinco, atividade da doença e tipo da doença nos prontuários de pacientes com DII no período de março a julho de 2020. O estudo partiu de um total de 53, os quais, 59% estavam com concentrações ótimas do mineral, 32% suficientes e 9% abaixo do ideal. Não foram encontradas diferenças estatísticas significativas entre as concentrações serias de zinco e DII, e entre os níveis séricos de zinco e o estado nutricional, porém pode-se concluir que um nível significativo dos pacientes se encontrava abaixo dos níveis ótimos de zinco.
RÁDIO, CIDADANIA E EXTENSÃO UNIVERSITÁRIA
Authors: Reimondo Barrios Yanet Maria , Reis Cl´óvis , Clasen Anesi de Novaes Dutra Coirolo Anna Carolina
Published: March 2023

Os meios de comunicação social desempenham um papel fundamental na formação da opinião pública. Eles apresentam certas questões ou problemas sobre os quais as pessoas pensam e se posicionam. Tal movimento influencia a definição das prioridades de uma determinada sociedade e a sua opinião sobre certas ideias. Neste contexto, o presente artigo examina a relação entre as práticas radiofônicas de conteúdo educativo e a formação cidadã. Os procedimentos técnicos para sua realização se baseiam em estudo de caso e observação participante. O objeto da análise é um projeto de extensão universitária voltado à criação, produção e distribuição de programetes de rádio. O projeto existe há 10 anos e já produziu mais de 500 peças de áudio, as quais buscam influenciar o comportamento das pessoas e criar atitudes favoráveis a demandas sociais das comunidades nas quais a universidade se insere. Os resultados da pesquisa apontam a importância do rádio para a proteção dos direitos, a participação popular e a manifestação de sentimentos de identificação e pertencimento.
The moderating effect of financial performance exerts on the interaction of absorptive capacity and organizational performance
Authors: Soares Thiago Coelho , Santa Stephane Louise Boca , Vaz Kristinne Kelly Rosa Borges , Soares Sandro Vieira
Published: March 2023

Objective of the study: In this paper, we will analyze the moderating effect of financial performance exerts on the interaction of absorptive capacity and organizational performance. Methodology / approach: A conceptual model was developed to assess the relationship between absorptive capacity, financial performance, and organizational performance in small and medium-sized Brazilian companies. To capture the multidimensional nature of absorptive capacity, this study uses structural equation modelling and measures the meditating effects of financial performance. Main results: The main finding is the moderating effect. The effect of absorptive capacity on organizational performance has a moderating effect of financial performance. Theoretical / methodological contributions: Small businesses ought to recognize and take advantage of the practical benefits of absorptive capacity. However, entrepreneurs should find motivation to develop more formalized absorptive capacities to raise the organizational performance. The results can help companies identify ways to better appropriate external information and knowledge to improve absorptive capacity. Relevance / originality: The research contributes to the proposition and empirical test of a predictive model of organizational performance in small and medium-sized enterprises, which can predict organizational performance in Brazilian´s SMEs. This study represents one of the first attempts to investigate the relationships between absorptive capacity, organizational performance, and financial performance. Social / management contributions: The results can help companies identify ways to better appropriate external information and knowledge to improve absorptive capacity.
Effect of Multipass Friction Stir Processing on Structure and Mechanical Properties of CuAl9Mn2 Copper Alloy
Authors: Cheremnov A.M. , Chumaevskii A.V. , Knyazhev E.O. , Kalashnikova T.A. , Kolubaev E.A.
Published: March 2023

This study examines the structure and mechanical properties of CuAl9Mn2 copper alloy processed via friction stir processing. Workpieces, 2 mm thick, were processed using four tool passes. After the initial FSP pass, the stir zone structure was found to be non-homogeneous, with grains changing from equiaxed to elongated in the material flow direction. Grain sizes decreased from 80-140 µm to 3-8 µm. However, after the fourth pass, the stir zone became more homogeneous with equiaxed grains and sizes ranging from 2-6 µm.

The increase in microhardness and tensile properties of the material is attributed to the processing temperature, mechanical mixing, and grain refinement. The ultimate tensile strength of the FSP material increased by 13% relative to the metal prior to processing, whether one or four passes were used. Additionally, microhardness in the stir zone increased, which is consistent with the results of mechanical tensile tests.
The Impact of Geometric Parameters on Three-Layer Flow Patterns in a Horizontal Channel: A Comprehensive Study
Authors: Laskovets E.V.
Published: March 2023

This paper focuses on studying stationary flows in horizontal layers, taking into consideration the effects of heat and mass transfer. A mathematical model is presented for a three-layer flow in an infinite channel with solid, impermeable walls. The gas-vapor mixture flows over one-component immiscible liquids in the lower and middle layers. The paper considers the processes of heat and mass transfer at the "liquid-gas" and "liquid-liquid" thermocapillary boundaries, respectively. The Dufour and Soret effects are also considered in the upper layer of the system. Mathematical modeling is based on exact solutions of a special form of the Navier-Stokes equations in the Boussinesq approximation. The procedure for determining unknown parameters is explained. The paper derives dependencies of the longitudinal temperature gradients at the system boundaries from each other. The influence of the flow region's geometry on the nature of the process is studied using the "silicone oil-water-air" system as an example. The paper presents longitudinal velocity profiles and temperature distribution for different values of the liquid layer heights while other parameters of the system remain fixed. The paper concludes that, in this case, the thickness of the lower layer is more influential than the thickness of the middle layer.
Estudos com egressos da pós-graduação em educação: Mapeamento das teses brasileiras 2013-2021
Authors: Mesquita Aline Luz , Fortunato Ivan
Published: March 2023

Este artigo mapea sistemáticamente as teses brasileiras focadas na temática dos egressos da Pós-Graduação em Educação entre os anos de 2013 e 2021. Trata-se de uma pesquisa de cunho quantitativo e qualitativo realizada utilizando o Catálogo de Teses e Dissertações da CAPES com a seleção dos trabalhos que abordaram a temática de egressos da pós graduação e que adotaram pós graduados no percurso metodológico definido, ou seja, como sujeitos de pesquisa. Após a seleção das teses foi desenvolvida uma sistematização técnica seguida de uma análise qualitativa mais aprofundada, que buscou destacar o objetivo geral, metodologia, sujeitos envolvidos, coleta de dados, referenciais teóricos e principais resultados das pesquisas. Os resultados apontam o potencial de estudos desenvolvidos com egressos de Pós-graduação para os cursos envolvidos e âmbito educacional no geral, pois com esse levantamento sistemático identificamos modificações na trajetória de egressos propiciadas pelo percurso formativo trilhado. O estudo evidencia, assim, o potencial formativo na pós-graduação sob a perspectiva dos egressos, bem como a importância de estudos envolvendo egressos para aprofundar saberes acerca de políticas e práticas em tal segmento educativo.  Espera-se trazer maior visibilidade para estudos com egressos como fonte de informações, visando o aprimoramento da formatação adotada nos cursos de Pós-graduação para um desenvolvimento profissional significativo.
Simplified Solution of Time-Cost Trade-off Problem for Building Constructions by Linear Scheduling
Authors:   Inonu University, Türkiye, Bettemir Önder Halis
Published: March 2023

Time-cost trade-off is an important optimization problem for contractors, because its optimum solution minimizes the total project cost. Formation of the time-cost trade-off problem causes an important workload, since the problem requires preparation of different construction cost and duration alternatives of the activities. Previous studies focused on the optimum solution of the problem and ignored the difficulties of the preparation of the different construction alternatives for the activities, which is a very difficult task for contractors. In this study, the creation of construction alternatives consisting of different time and cost values is automated. Quantity take-off of construction items is computed by user-defined dimensions of structural elements. Workmanship and material requirements are computed by pre-defined job descriptions and quantity take-off values. Different construction alternatives are formed by assigning different crew sizes and the corresponding construction durations are computed by estimating the job efficiency of the crew by regression models derived from the literature. Precedence relationships of the main construction items are pre-defined and the construction schedule is formed by a line of balance in terms of work days. The problem is optimized by a genetic algorithm the parameters of which are fine-tuned by experimental design. The developed approach is implemented on a spreadsheet application and the total optimization process including data entry is completed in one and a half hour on a desktop computer with i5 CPU. This study contributes to relevant literature by proposing a systematic approach for the formation of construction alternatives of the time-cost trade-off problem. The proposed approach can be beneficial for contractors and project managers to form and solve the time-cost trade-off problem with minimum endeavor and cost. KEYWORDS: Time-cost trade-off, Genetic algorithm, Line of balance, Optimization, Experimental design.
Drought Assessment of a Data-scarced Watershed – Quetta Valley, Pakistan
Authors:   NED University of Engineering & Technology, Karachi, Pakistan., Abdullah Syed M.F. , Ahmed Syed Imran , Husain Etikaf , Hasan Farah , Ahmed Shoaib
Published: March 2023

Pakistan continuously remains under the threat of drought, as approximately 88% of its area falls under arid and semi-arid regions. The most affected province due to drought is Balochistan, facing migration, scarcity, famine and economic strain. The insufficiency of meteorolgical and hydrological data in the area intensifies the problem because of the late or non-diagnosis of drought. Therefore, this study proposes a methodology to quantify the drought in a watershed with inadequate meteorological and hydrological data. This study aims to design a method to find the extent and duration of drought conditions for watersheds where only basic meteorological data is available. For this purpose, Quetta Valley, Balochistan, Pakistan, is chosen as the study area. First, the hydrological components of water balance for the watershed are calibrated for 10 years using a distributed hydrological model (MIKE-SHE). The modeling results and other observed meteorological data are then used to evaluate eight drought indices to assess the existence and extent of drought, including those which use the hydrological parameters as input from MIKE-SHE. Reconnaissance drought and Palmer drought severity indices, which use detailed hydrological parameters, are found to provide more accurate results coupled with early drought detection of historical events. The results showed that the proposed method could be effectively used to determine the secondary parameters from the hydrological model, which in turn gives more realistic drought conditions for such regions. KEYWORDS: Meteorological drought indices, Hydrological modeling, MIKE SHE, Drought, Palmer drought severity index.
Effect of Adding LDPE Bags on Rutting and Stripping Behaviour of Asphalt Mix
Authors:   National University of Sciences and Technology, Campus H-12, Islamabad, Pakistan, Khan Saad , Marjan Hamza
Published: March 2023

Disposal or incineration of waste low-density polyethylene (LDPE) bags is a major problem, as it causes pollution. The pavement over time gets deteriorated by vehicular traffic, which mostly results in rutting and other distresses. This research is based on the performance evaluation of hot mix asphalt (HMA) modified with LDPE. Aggregates National Highway Authority Pakistan (NHA) gradation B, bitumen grade 60/70 and waste LDPE bags from the dump yards of Islamabad (Pakistan) were used in this study. Penetration, ductility and softening-point tests were conducted with bitumen modified with different contents of waste LDPE bag flakes; i.e., 0%, 2%, 4%, 6% and 8% to figure out the optimum modifier content (OMC). Marshall testing was performed for the determination of optimum bitumen content (OBC). Using OBC and incorporating LDPE contents as a replacement for OBC, HMA samples were tested for performance evaluation, including rutting resistance and moisture susceptibility and compared with the performance of unmodified HMA. It was observed that 4% of LDPE as a replacement for OBC in the HMA can be used as OMC and yielded better performance results than unmodified asphalt mix. Rutting resistance was improved by 20.86% and tensile strength ratio (TSR) for moisture susceptibility evaluation was above the specified limit of 80%. KEYWORDS: Waste LDPE bags, Low-cost bitumen modifier, Performance evaluation, Performance improvement, Cost comparison, Sustainable environment.
EFFICIENCY OF USING EVAPORATIVE COOLING TO REDUCE THE CONSUMPTION OF GRAPHITE ELECTRODES IN ARC FURNACES OF LOW CAPACITY
Authors:   South Ural State University, Yachikov I. , Portnova I. ,   Nosov Magnitogorsk State Technical University, Bystrov M. ,   Machine Building Plant named after M.I. Kalinin, Utemisova A. ,   A. Baitursynov Kostanay State University
Published: March 2023

Graphite electrodes used in arc furnaces are consumable material. In the cost of produced castings of finished products in the foundry production, the cost of graphite electrodes is a significant part of the costs, so the reduction in their specific consumption is an urgent task. An analysis of the reasons determining the specific consumption of graphite electrodes, and the existing methods of reducing the specific of graphite electrodes waste, among the considered methods it was established that the most promising direction is the use of water evaporative cooling. The aim of the work is a theoretical analysis of the effectiveness of evaporative cooling with water side surface of graphite electrodes in arc furnaces of low capacity. Computer simulation of the thermal state of a graphite electrode was carried out on the example of a three-phase alternating current arc furnace with a capacity of 6 tons. It has been established that the evaporative cooling of graphite electrodes can be recommended for operation on active and projected arc furnaces of small capacity. It is determined that the use of water evaporative cooling in arc furnace with a capacity of 6 tons reduces the temperature of the graphite electrode, primarily in its upper part. It has been established that there is an optimal consumption of water that corresponds to a minimum of graphite electrodes and additional electricity. The use of evaporative cooling on arc furnaces of low-capacity is economically more appropriate when using low-quality graphite with respect to its thermal resistance.
STUDY OF EXPANDER SEGMENT WEAR FOR CALIBRATING LARGE DIAMETER PIPES
Authors:   South Ural State University, Batalov G. , Radionova L. ,   Moscow Polytechnic University, Shander S. ,   PJSC “Pipe Metallurgical Company”
Published: March 2023

In metallurgical industries, expensive tools are used, which often have complex geometries. The performance of such tools directly affects the economic performance of the production. One of these tools is the expander segment. This tool is used in the process of calibrating large diameter pipes obtained according to the JCOE, UOE, RB-forming schemes. The calibration process is the last stage of shaping, which consists of the gradual deformation of the pipe billet using segments that have a certain set of mechanical and geometric properties. At each stage, the segments give a rounded shape to the pipe, correcting straight sections, ovality and other geometric irregularities of the billet. The main load of the process falls on the expander segments. In this paper, we study the wear of segments in the process of calibration of large-diameter electric-welded pipes. To predict wear, CAE models of the calibration process were built in a specialized software package MSC-Software, with the help of which an analysis of possible wear, its magnitude, position and nature was carried out. A technique is proposed for assessing the wear of expander segments using 3D scanning, digitizing the data obtained and constructing a 3D map of deviations from the reference model. An analysis of finite element modeling and experimental studies showed that CAE models with high convergence predict zones and features of the wear distribution of expander segments. It is shown that modeling with a high degree of certainty can be used to assess the performance of tools, both new and already in operation. Based on the experimental data, an equation was obtained to determine the wear of the expander segments. According to the obtained equation, a nomogram was constructed, which makes it possible to predict the wear of the expander segments depending on the stresses that arise in the tool during calibration and the number of processed pipes. Evaluation and accounting for the wear of the working surface of the expander segments make it possible to predict deviations in the geometric parameters of pipes in the process of expanding.
TEMPERATURE CONTROL OF THE LOWER ZONES OF METHODOLOGICAL FURNACES
Authors:   South Ural State University, Panferov V. , Panferov S. ,   South Ural State University
Published: March 2023

Introduction. The problem of ensuring the identity of the heating trajectories of the upper and lower halves of the slab (slab heating symmetry) is considered for significantly different numerical values of the external heat transfer parameters for its upper and lower surfaces. This is due, in particular, to poor thermal insulation of the hearth pipes. Purpose of the study. To develop an algorithm for calculating the ratio of settings (tasks) required for symmetry for the temperature controllers of the working space of the upper and lower heating zones of continuous furnaces. Materials and methods. The analysis and generalization of literature data on the problem is carried out. A mathematical description of asymmetric heating is proposed, an optimization problem is posed and solved. Results. Algorithm variants provide for the possibility of describing external and internal heat transfer both in linearized and in the original non-linear form. For the case of representation of the heating process by a fully linearized heat conduction equation with a convective form of external heat transfer, the desired result is represented by an analytical formula. This, as is known, makes it possible to trace the influence of the initial process parameters on the optimal ratio of settings. Numerical research shows that observance of the calculated ratio of the settings ensures a satisfactory coincidence of the mass-average temperature trajectories of the upper and lower halves of the slab in the case of asymmetric heating itself (inequality of external heat transfer coefficients). A simplified solution of the problem under consideration is also proposed, when the dynamics of mass-average temperatures of the upper and lower halves of the slab is initially described by a first-order ordinary differential equation obtained from the heat conduction equation by integral temperature averaging over the thickness of the slab. The simplified version also provides, as a rule, practically acceptable proximity of the heating trajectories of the upper and lower halves of the slab and is even more “transparent” as to how the initial data affects the desired result. Conclusion. The use of the optimal ratio of settings allows, for example, when solving problems of optimal process control, to reduce the dimension of the desired control vector by half, which is very important in the development of algorithmic support for automated process control systems for heating furnaces.
IMPORTANCE OF SATURATION USAGE FOR GENERATOR DIGITAL MODELING BASED ON PMU DATA
Authors:   Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg, Russia, Kappes A.D. , Tepikin Ya.E. , Aprosin K.I. , Gaidamakin F.N. ,   Prosoft-SystemsLLC, Ekaterinburg, Russia,   National Research University “MPEI”, Moscow, Russia,   AlteroPower SoftLLC, Ekaterinburg, Russia
Published: March 2023

The article studies saturation influence of a synchronous machine on model parameters. Special attention was paid to saturation process simulation in generator modeling by means of the finite elements method (FEM). The study analysed patterns of magnetic induction distribution over the generator cross-sectional area. It also focuses on real mode simulation in Park’s model by means of short-circuit operation, and islanding modes playback based on a phasor-measurement unit (PMU) date. Three sets of parameters were used – saturated, unsaturated and unsaturated parameters, considering no-load characteristics (NLC). The simulation results were compared with similar measurement signals-based PMU date.
INVESTIGATION OF OPERATING MODES OF CIRCUITS WITH EXPANDER-GENERATOR UNITS IN COGENERATION BOILERS WITH GAS-PISTON INTERNAL COMBUSTION ENGINES
Authors:   Lipetsk State Technical University, Lipetsk, Russia, Gubarev V.Ya. , Arzamastsev A.G. , Kartel A.Yu.
Published: March 2023

In this mode, due to a decrease in the pressure drop used in the expander, useful effect has been shown to decrease. The paper considers the operating modes of various schemes for the use of expander-generator units in cogeneration boilers with gas-piston internal combustion engines. In the scheme with the absence of gas heating before the expander at low air temperatures, crystallohydrates may fall out after the expander. In order to prevent this pheno­menon, a mode with gas throttling after the expander is proposed. In this mode, due to a decrease in the pressure drop used in the expander, its useful effect will decrease. The study also shows that the scheme with gas heating in front of the expander enables the available pressure drop to be fully realised. At a certain outdoor air temperature in the summer, the use of gas heating may become unprofitable due to a decrease in the efficiency of internal combustion engines for a heated circuit. At higher outdoor temperatures, the study proposes a mode with gas heating turned off. Annual and average monthly fuel economy from the use of various schemes of expander-generator units for a cogeneration boiler house in comparison with the scheme with drosseling is calculated. It is shown that heating the gas before the expander to 100 °С allows annual fuel economy to be increased by about 1.4 times, when compared to a scheme using an expander without heating.
Artystyczny wizerunek faktu w powieści Mariczki Kryżaniwskiej "Cienie"
Authors: Danyłenko Ludmyła
Published: March 2023

Autorkę artykułu interesuje specyfika beletryzowanego dokumentu traktującego o okresie sowieckim. Celem pracy jest scharakteryzowanie cech literatury faktu w powieści Mariczki Kryżaniwskiej Cienie, poświęconej reżyserowi Serhijowi Paradżanowowi oraz historii kręcenia filmu Cienie zapomnianych przodków. Autorka wyjaśnia znaczenie intertekstu, ujawnia specyfikę wizerunku znanych postaci, analizuje celowość połączenia mistycyzmu i rzeczywistości. Ustalono, że fakty przytoczone w powieści wyraźnie pokazują traumę kolonialnej przeszłości. Połączenie rzeczywistości i mistycyzmu dało oryginalny obraz przeszłości, tworząc dynamiczną fabułę.
Structural, physical, and radiation absorption properties of a significant nuclear power plant component: A comparison between REX-734 and 316L SS austenitic stainless steels
Authors: Say Yakup , Güler Ömer , Kavaz Esra , ALMisned Ghada , Ene Antoaneta , Tekin Huseyin Ozan
Published: March 2023

Austenitic stainless steels (SSs) are commonly used as in-core and surrounding structural materials in today’s industrial BWR and PWR systems. Such adaptable steels have also been the primary materials studied and used in several advanced nuclear reactor technologies, such as fast breeding and magnetic fusion reactors. In this study, some critical material properties, such as structural, physical, and radiation-shielding properties of REX-734 and 316L SS, were experimentally evaluated and compared to those of a number of other alloys. In addition to homogeneous element distribution, both alloys exhibit strong crystal orientation. The REX-734 alloy has a tensile strength of 1,259 MPa, whereas the 316L SS alloy has a tensile strength of 495 MPa. Moreover, nitrogen in the REX-734 alloy formed ultra-hard nitrides with Cr, Nb, and Si and precipitated into the structure and increased the strength. According to our findings, the mass attenuation coefficient values of the 316L SS sample were slightly higher than those of the REX-734 sample at all energies. It can be concluded that the REX-734 sample, with its exceptional strength qualities and excellent radiation attenuation capabilities, may be a viable nuclear power plant material for future investigations.
Optimal convergence factors for general Fourier coefficients
Authors: Gogoladze Larry , Cagareishvili Giorgi
Published: March 2023

Stefan Banach proved that even the Fourier series of the function

f
⁢

(
x
)

=
1

{f(x)=1}

(

x
∈

[
0
,
1
]

)

{(x\in[0,1])}

might not be convergent for some orthonormal systems (ONS). Thus we can conclude that the Fourier series of functions belonging to a certain differential class cannot be convergent in general. On the other hand, for classical ONS (trigonometric, Haar, Walsh systems, …), the convergence of Fourier series of differentiable class functions is a simple subject. In this paper, we investigate the sequence of positive numbers such that, multiplying the Fourier coefficients of Lipschitz class functions by these numbers, one obtains a convergent series of the special form. From the convergence of these special form series, we derive the convergence of the special Fourier series of Lipschitz class functions with respect to general ONS. The obtained results are best possible.
Quality improvement sustainability to decrease utilization drift for therapeutic hypothermia in the NICU
Authors: Kieffer Hannah , Carlton Katherine , Adams Samuel , Jozwik Jenna , Cabacungan Erwin , Cohen Susan S.
Published: March 2023

Objectives

Therapeutic hypothermia (TH) is now standard of care for the neuroprotection of patients with moderate to severe hypoxic-ischemic encephalopathy (HIE). TH misuse results in increased medical complication rates and high health care resource utilization. Quality improvement (QI) methodology can address drift from clinical guidelines. Assessment of sustainability of any intervention over time is an integral part of the QI methodology.

Methods

Our prior QI intervention improved medical documentation using an electronic medical record-smart phrase (EMR-SP) and demonstrated special cause variation. This study serves as Epoch 3 and investigates the sustainability of our QI methods to decrease TH misuse.

Results

A total of 64 patients met the diagnostic criteria for HIE. Over the study period, 50 patients were treated with TH, and 33 cases (66%) used TH appropriately. The number of appropriate TH cases between cases of misuse increased to an average of 9 in Epoch 3 from 1.9 in Epoch 2. Of the 50 cases, 34 (68%) had EMR-SP documentation included. Length of stay and TH complication rates did not vary between cases of TH misuse and appropriate TH use.

Conclusions

Our study confirmed a sustained decrease in TH misuse, despite inconsistent use of EMR-SP. We speculate that culture change involving increased awareness of guidelines through education may have contributed more to a lasting change.
The crystal structure of di-μ-1-naphthylacetato-κ
3
O,O′:O;κ
3
O:O,O′-bis[(1-naphthylacetato-κ
2
O,O′)(2,2′-bipyridine-κ
2
N,N′)lead(II)] monohydrate, C68H54N4O9Pb2
Authors: Deng Zheyu , Li Jiahong , Hou Xinbo , Luo Na , Zhu Xiaoming
Published: March 2023

C
68

H
54

N
4

O
9

P
b

2

${\mathrm{C}}_{68}{\mathrm{H}}_{54}{\mathrm{N}}_{4}{\mathrm{O}}_{9}{\mathrm{P}\mathrm{b}}_{2}$

, monoclinic, C2/c (no. 15), a = 15.7286(14) Å, b = 16.3623(14) Å, c = 22.500(2) Å, β = 

97.369

(
1
)

°

$97.369(1){}^{\circ}$

, V = 5742.7(9) 

Å
3

${\mathrm{\mathring{\text{A}}}}^{3}$

, Z = 4,

R

g
t

${R}_{gt}$

(F) = 0.0203, w

R

r
e
f

${R}_{ref}$

(

F
2

${F}^{2}$

) = 0.0488, T = 296(2) K.
Single Systemic Administration of a Gene Therapy Leading to Disease Treatment in Metachromatic LeukodystrophyArsaKnock-Out Mice
Authors: St. Martin Thia , Seabrook Tania A. , Gall Katherine , Newman Jenn , Avila Nancy , Hayes April , Kivaa Monicah , Lotterhand Jason , Mercaldi Michael , Patel Kruti , Rivas Israel J. , Woodcock Stephen , Wright Teresa L. , Seymour Albert B. , Francone Omar L. , Gingras Jacinthe
Published: March 2023

Metachromatic leukodystrophy (MLD) is a rare, inherited, demyelinating lysosomal storage disorder caused by mutations in the arylsulfatase-A gene (ARSA). In patients, levels of functional ARSA enzyme are diminished and lead to deleterious accumulation of sulfatides. Herein, we demonstrate that intravenous administration of HSC15/ARSArestored the endogenous murine biodistribution of the corresponding enzyme, and overexpression ofARSAcorrected disease biomarkers and ameliorated motor deficits inArsaKO mice of either sex. In treatedArsaKO mice, when compared with intravenously administered AAV9/ARSA,significant increases in brain ARSA activity, transcript levels, and vector genomes were observed with HSC15/ARSA. Durability of transgene expression was established in neonate and adult mice out to 12 and 52 weeks, respectively. Levels and correlation between changes in biomarkers and ARSA activity required to achieve functional motor benefit was also defined. Finally, we demonstrated blood–nerve, blood–spinal and blood–brain barrier crossing as well as the presence of circulating ARSA enzyme activity in the serum of healthy nonhuman primates of either sex. Together, these findings support the use of intravenous delivery of HSC15/ARSA-mediated gene therapy for the treatment of MLD.

SIGNIFICANCE STATEMENTHerein, we describe the method of gene therapy adeno-associated virus (AAV) capsid and route of administration selection leading to an efficacious gene therapy in a mouse model of metachromatic leukodystrophy. We demonstrate the therapeutic outcome of a new naturally derived clade F AAV capsid (AAVHSC15) in a disease model and the importance of triangulating multiple end points to increase the translation into higher species via ARSA enzyme activity and biodistribution profile (with a focus on the CNS) with that of a key clinically relevant biomarker.
‘Gimme a Hell Yeah!’ Stone Cold Steve Austin and the WWF’s Soundscapes of Rage
Authors: Wells Christi Jay
Published: March 2023

In the late 1990s, the Word Wrestling Federation (WWF) reached the height of its global popularity thanks to its “Attitude” re-branding. From 1997 to 2001, the company targeted an audience of teenagers and 18- to 34-year-old men with programming emphasizing adult themes and rebellious anti-heroes. The company’s most popular character at the time was “Stone Cold” Steve Austin, a beer-drinking Texas “redneck” who refused to conform and feuded on screen with a villainous corporate CEO. His iconic entrance music, “Hell Frozen Over,” was closely modeled on Rage Against the Machine’s 1996 hit song “Bulls on Parade” and played a crucial role in establishing the character’s credentials as a blue collar rebel whose actions channeled the desires of the WWF’s core audience of young white men.

Highlighting both the specific idiomatic conventions of professional wrestling entrance themes and the numerous similarities between “Bulls on Parade” and Austin’s entrance music, this article argues that Austin’s music leveraged sonic tropes of masculine anti-corporate rebellion that were legible as such in the late 1990s due largely to the soundscapes of rage popularized by RATM and the numerous rap-rock “nü metal” bands they inspired. It shows how Austin’s music and its RATM connection exemplify not only the capacity for popular entertainment to commodify rebellion, but also the agency of audiences in forging meaningful personal and interpersonal relationships with and through mass-mediated entertainment as sonic signifiers become disentangled from specific political movements and made available to a broad range of economic and political projects.
Trapping Ecosystems
Authors: Garrido Castellano Carlos , Rollefson J. Griffith
Published: March 2023

On June 16, 2018, Beyoncé and Jay-Z released “Apeshit”—a trap-styled hip hop track featuring a chorus of “I can’t believe we made it / Have you ever seen the crowd going apeshit?” The much-commented-on music video for the track was framed as a hip hop takeover of the world’s most visited museum—Paris’s Louvre—featuring pop’s reigning power couple, marketed as “The Carters,” making themselves at home with a collection of dancers in flesh-colored black, brown, and beige bodysuits. While the video was generally received through the split-screen frame of either a cutting decolonial takedown of this monument to Western civilization or the ultimate in money-flaunting bling spectacle, a more subtle and complex set of issues is at play. This article examines the deep historical ambivalences at play in this pop cultural artifact. Employing multi-modal methodologies that combine visual and musical arts perspectives articulated via the frames of postcolonial studies, this analysis theorizes the cultural “traps” in effect. Ranging from the track’s “trap” sonic production and lyrical rhetoric of escape (“we made it”), to the historical trap of musealized colonial plunder and the Louvre’s labyrinthine, oft-subterranean floor plan, to the “trappings” of consumption, bourgeois self-making, and aesthetic contemplation, we seek to illustrate how this socio-cultural text destabilizes Enlightenment universalism and its public/private split.
The Changing Political Economy of Music in Presidential Campaigns
Authors: Patch Justin
Published: March 2023

Music has been a part of US presidential contests since George Washington first campaigned across the newly independent nation. In time, the country grew, the voting public was augmented, and new technologies and industries were invented. In the midst of these changes, both small and profound, music remained constant, but its role and uses underwent transformation. This article examines three advertisements in Presidential campaigns during the mass media age, from 1960 to the present, where music culture was an essential element of the message. These examples, a pro-Civil Rights ad featuring Harry Belafonte for John F. Kennedy in 1960, Will.i.am’s “Yes, We Can” for Barack Obama in 2008, and a tweet by Dan Scavino, Trump’s social media coordinator in 2020, all differ in their media platform, content and relationship to voters. Each analysis centers the socio-economic changes that accompanied each period and examines the relationship between the production of knowledge in industrial and post-industrial capitalism. These ads, their content, appeal, and codes are read through theories of industrial and post-industrial epistemology. Here, music serves as an entry into understanding the effect that economic change has on cultural production and reception. Music is a necessary feature of campaigns, but as the production and reception of knowledge change, so does the use of music by campaigns. The efficacy of these three ads depends on different relationships among campaigns, voters, and cultural products, and this relationship is always affected by dominant modes of production.
Home Planning and Gender in Mandatory Palestine
Authors: Davidi Sigal
Published: March 2023

The national Jewish awakening and the rise of Zionism set off several waves of Jewish immigration into Mandatory Palestine (1921–48), making housing an urgent issue. This article focuses on housing planning, using the lens of gender to explore the transfer and development of new household ideas from Germany to Palestine and the impact of these ideas on local housing debates. By tracing this process of knowledge transfer and contextualizing the kitchen discourse in Palestine within the context of contemporary European discourse, this study deepens our understanding of the development of Israeli home planning. Drawing on the professional opinions of architect Lotte Cohn and other women who described their own experiences in the home, it explores everyday aspects of the Zionist enterprise and how these intersected with the concept of the “new woman” in the Jewish community in Palestine.