bluuebunny/crossref_metadata_2025 huggingface dataset:
Estados de bem-estar do Leste Asiático: uma análise das transformações após os anos 2000*
Authors: Barbosa Pedro Mendes Rufino
Published: February 2024

Resumo Este artigo oferece uma análise sobre as transformações qualitativas nos Estados de bem-estar do Leste Asiático a partir dos anos 2000. Primeiro, distingo os legados institucionais à luz das tipologias formuladas na literatura: “desenvolvimentistasinclusivos” (Japão e Coreia do Sul)”; os “individualistas” (China, Hong Kong, Malásia e Singapura) e os “incipientes” (Filipinas, Indonésia, Tailândia e Vietnã). Argumento que o primeiro grupo aprofundou o processo de expansão de suas políticas sociais, sob uma abordagem universalista, mas reconfigurou a articulação entre política industrial e política social, bem como desenvolveu substantivamente as políticas de desfamiliarização. A China desloca-se do grupo “individualista” em direção a um tipo “híbrido”, ao ampliar consideravelmente a provisão pública, reproduzindo, contudo, um sistema dual e estratificado. Finalmente, os “individualistas” e os “incipientes” promoveram mudanças residuais, ampliando o papel do Estado sobre os riscos sociais por meio de políticas focalizadas em famílias de baixa renda. JEL: H51, H52, H53, H75, P16.
O DESAFIO DA PLURISSEMIOTICIDADE PARA A LINGUÍSTICA TEXTUAL
Authors: Pinheiro Clemilton Lopes , Cassiano Héberton Mendes
Published: February 2024

Resumo Neste ensaio, toma-se como questão o aparato teórico e a instrumentalização analítica mobilizados pela Linguística Textual para tratar do texto que conjuga elementos verbais e não verbais (texto plurissemiótico). Considera-se que as pesquisas do campo podem recorrer tanto ao aparato próprio, projetado para o texto verbal, ou a outros aparatos, como a Gramática do Design Visual, projetado para os textos não verbais. O objetivo é, portanto, verificar a decisão teórica de pesquisadores quanto à análise de textos plurissemióticos e o alcance desta decisão. Realiza-se a metanálise de cinco microanálises extraídas de trabalhos da Linguística Textual sobre referenciação no texto plurissemiótico. A análise conduziu a pensar que o texto plurissemiótico, embora guarde traços formais e funcionais em comum com um texto exclusivamente verbal e um texto exclusivamente imagético, tem uma ordem própria de funcionamento. Para dar conta desse funcionamento, defende-se o desenvolvimento de um aparato próprio.
ESTRATÉGIAS RETÓRICAS EM USO NA SEÇÃO DE CONSIDERAÇÕES FINAIS DE ARTIGOS EM LINGUÍSTICA
Authors: Lêdo Amanda Cavalcante de Oliveira , Bezerra Benedito Gomes , Pimentel Renato Lira
Published: February 2024

Resumo Este trabalho examina, à luz da análise de movimentos proposta por Swales (1990), as estratégias retóricas mobilizadas na seção de considerações finais de artigos da área de Linguística. Para este estudo, de natureza exploratória, foram selecionados dez artigos publicados em periódicos brasileiros, cujas seções conclusivas foram submetidas à análise de movimentos e passos retóricos, com base no modelo apresentado por Cotos, Huffman e Link (2015). Os resultados indicam estratégias recorrentes de retomada dos objetivos, métodos, resultados, contribuições e implicações da pesquisa, além de eventuais sugestões de novos estudos. Entretanto, a retomada de objetivos ou métodos como forma de iniciar a seção constitui um dos pontos mais visíveis em que os textos se afastam do modelo de análise, ratificando a flexibilidade inerente ao gênero, nos limites das convenções estabelecidas pela comunidade acadêmica.
TOPICALIDADE EM PRODUÇÕES ESCRITAS DE ALUNOS DO ENSINO SUPERIOR
Authors: Hanisch Cleide Vilanova
Published: February 2024

Resumo Este artigo, ancorado teoricamente na Gramática Textual-Interativa, tem por objetivo discutir a regularidade de uma unidade da língua no âmbito da organização textual, além de colaborar na reflexão acerca de novas possibilidades no que tange ao ensino e à aprendizagem da escrita. Para tal, analisa a Topicalidade em seus dois níveis de funcionamento - a organização intertópica e a organização intratópica -, procurando verificar se tal processo é sistemático ou se é variável. A metodologia adotada presume o tópico discursivo como categoria de análise e investiga 47 produções escritas de estudantes do ensino superior. Essa investigação possibilita entender como se organizam os elementos de natureza essencialmente textual e sustentar que o texto se configura como uma unidade bastante sistemática, visto que apresenta uma organização própria, fundada em princípios constituintes particulares.
LETRAMENTO CRÍTICO EM PRINCÍPIOS: AUSÊNCIA, PRESENÇA E TRANSGRESSÃO
Authors: Arruda Débora Liberato
Published: February 2024

Resumo Neste texto, problematiza-se letramento crítico e narrativas de verdade(s) por que são atravessadas as interações em determinadas culturas. Apresentam-se, como recurso didático-metodológico para o trabalho com o letramento, três princípios: princípio da ausência de verdade, princípio da presença de verdade e princípio da transgressão crítica. Cada um desses princípios é desenvolvido com base nas concepções de discurso, razão, crítica, práxis, interseccionalidade, transgressão. No ensaio, discutem-se as categorias de real, simbólico e imaginário, oriundas dos estudos psicanalíticos, bem como as de verdade categórica, enunciados discursivos e multiculturalidades. Com base nos processos de inferência e compreensão - estratégico, flexível, interativo e inferencial, propõe-se o letramento crítico como uma prática contra-hegemônica de inclusão de multiplicidade de discursos, que levem em conta os contextos culturais e linguisticamente diversos, a fim de haver uma mudança epistêmica e metodológica de análise crítica dos fatos para que se gere uma ação concreta, uma práxis.
Influence of self-efficiency beliefs on the health and well-being of university students in COVID-19
Authors: Alves Danilo de Miranda , Pompeo Daniele Alcalá , Sacardo Yuri , Eid Letícia Palota , Lourenção Luciano Garcia , André Júlio César
Published: February 2024

ABSTRACT Objective: To analyze general self-efficacy beliefs in university students during the COVID-19 pandemic and their correlation with psychological well-being and anxiety and depressive symptoms. Method: Cross-sectional study, carried out with nursing, medicine and psychology students from a higher education institution in the state of São Paulo, Brazil. The sample consisted of 329 students and data collection took place through a questionnaire and scales, from August to December 2020. Mann-Whitney test and Spearman's correlation coefficient were used for analysis of the variables. Results: Participants' self-efficacy was median (34.3±7.5). Higher self-efficacy scores were correlated with better psychological well-being (p<0.001; r= -0.582) and absence of anxiety (p<0.001) and depressive (p<0.001) symptoms. Conclusion: High self-efficacy beliefs were associated with better mental health outcomes. Strengthening self-efficacy in universities can help improve students' health behaviors and prevent mental illness.
Effect of treatment with growth hormone on body composition and metabolic profile of short children born small for gestational age
Authors: Kühl Adriana Masiero , Dias Márcia Regina Messaggi Gomes , Pereira Rosana Marques
Published: February 2024

ABSTRACT Objective: To assess the effect of recombinant growth hormone (rGH) on body composition and metabolic profile of prepubertal short children born small for gestational age (SGA) before and after 18 months of treatment. Methods: It is a clinical, non-randomized, and paired study. Children born SGA, with birth weight and/or length <-2 standard deviations (SD) for gestational age and sex, prepubertal, born at full term, of both genders, with the indication for treatment with rGH were included. The intervention was performed with biosynthetic rGH at doses ranging from 0.03 to 0.05 mg/kg/day, administered subcutaneously, once a day at bedtime. Total lean mass (LM) and total fat mass (FM) were carried out using dual-energy X-ray absorptiometry (DXA), and the metabolic profile was assessed for insulin, glycemia, IGF-1 levels and lipid profile. Results: Twelve patients (nine girls, 8.17±2.39 y) were evaluated; three patients dropped out of the study. There was an increase of LM adjusted for length (LMI) (p=0.008), LMI standard deviation score (SDS) adjusted for age and sex (p=0.007), and total LM (p<0.001). The percentage of body fat (BF%) and abdominal fat (AF) remained unaltered in relation to the beginning of treatment. Among the metabolic variables, blood glucose remained within normal levels, and there was a reduction in the number of participants with altered cholesterol (p=0.023). Conclusions: The effect of rGH treatment was higher on LM than in FM, with increased LM adjusted for length and standardized for age and sex. Glycemia remained within the normal limits, and there was a decreased number of children with total cholesterol above the recommended levels.
Patients' prognosis with congenital heart disease followed by ten years: survival and associated factors
Authors: Silveira Daniélle Bernardi , Batisti Rodrigo da Silva , Marchezi Liana Vitória , Rocha Beatriz Felipe da , Rosa Ernani Bohrer da , Correia Jamile Dutra , Silva Leonardo Leiria de Moura da , Rosa Rafael Fabiano Machado , Zen Paulo Ricardo Gazzola
Published: February 2024

ABSTRACT Objective: To evaluate the prognosis and influence of associated factors in patients with congenital heart disease admitted for the first time to the Intensive Care Unit of the Hospital da Criança Santo Antônio/Irmandade da Santa Casa de Misericórdia de Porto Alegre, especially those factors associated with death. Methods: Patients were prospectively and consecutively allocated over a period of one year (August 2005 to July 2006). Now, 15 years after the initial selection, we collected data from these patients in the database of the Cytogenetics Laboratory of the Universidade Federal de Ciências da Saúde de Porto Alegre and in the medical records of the hospital. Results: Of the 96 patients, 11 died and 85 were alive until 20 years old. Four patients died in the Intensive Care Unit. The survival probability up to 365 days of life was 95.8%. The survival assessment identified that the deaths occurred mainly before the patients completed one thousand days of life. We found that complex heart disease was independently associated with an odds ratio of 5.19 (95% confidence interval — CI:1.09–24.71; p=0.038) for death. Conclusions: Knowledge about the factors that interfere with the prognosis can be crucial in care practice planning, especially considering that congenital heart disease is an important cause of mortality in the first year of life.
Thinking about languages between fixity and fluidity: what can a translingual perspective teach us about language policies in the global South?
Authors: Santo Diogo Oliveira do Espírito
Published: February 2024

ABSTRACT: Moving away from the tradition of treating multilingualism as a problem and language as an autonomous system, current theoretical approaches have shifted from monolingual principles toward translingual perspectives to investigate the relationship between language policy and ideology. In this text, I take on such a position to explore how multilinguals’ attitudes toward their languages are shaped by ideologies that highlight both the fixity and fluidity of contemporary communicative practices. In order to do so, I analyze data taken from a larger study that problematized online translingual practices of individuals from post-colonial countries through the use of questionnaires and interviews. Drawing on the notions of translanguaging, languagised worlds and Bakhtin’s concept of centripetal and centrifugal forces, I argue that in order to better account for the impact of language policies in multilinguals’ lives, scholars should turn their attention to the implications of fixed and fluid notions of language for the negotiation of competing language ideologies.
Graffiti na cultura hip-hop: relações entre linguagem, identidade e espaço urbano na perspectiva transperiférica e indisciplinar da Linguística Aplicada
Authors: Caminha Giulia Soster
Published: February 2024

RESUMO: Este artigo aborda a importância do graffiti na cultura hip-hop e sua relação com a linguagem, identidade e o espaço urbano. Embora seja uma forma de expressão artística importante, o graffiti é frequentemente visto como um ato de vandalismo que causa desconforto nos sujeitos que enxergam o mundo pela ótica do capitalismo neoliberal. O texto argumenta que esse estigma é uma forma de perpetuar discursos que promovem a segregação e marginalização de indivíduos com base em raça, gênero e classe social. Essa pesquisa qualitativa adotará uma perspectiva crítica para compreender fenômenos linguísticos, como ressaltado na abordagem do bricoleur ( Denzin; Lincoln, 2006) do pesquisador a fim de transitar por campos de conhecimento distintos e confluentes. Por meio de entrevistas conduzidas com os participantes dessa pesquisa, é possível perceber que o graffiti é considerado um produto de uma disputa linguística nas paisagens urbanas e também um apontamento nos estudos sobre novos letramentos ( Mattos, 2011). O artigo discute como o graffiti pode representar uma forma de reexistência ( Souza, 2009; 2011) no paradigma transperiférico ( Windle et al., 2020), encontrando também apoio na perspectiva da linguística aplicada indisciplinar ( Moita Lopes, 2006; Pennycook, 2006).
What Is (Not) Aesthetic Education?
Authors: Gonçalves Jean Carlos
Published: February 2024

ABSTRACT The article, of essayistic-bibliographic character, seeks to reflect on the uses, powers and meanings of the term Aesthetic Education in scientific research, starting, firstly, from approaches on the concept of aesthetics from the texts The Problem of Content, Material and Form in Literary Creation, by Mikhail Bakhtin and Malaise dans l’ésthetique, by Jacques Rancière, to then mobilize, from a Latin American perspective, its relations with the field of education in dialogue with Latin American authors. The text is constituted as a theoretical-methodological exercise to think the Aesthetic Education from angles and prisms still little investigated in the current literature on the subject.
Properties and relations: a post-anthropocentric reading
Authors: Fernández-Mateo Joaquín
Published: February 2024

Abstract This article explores the philosophical postulates that are generating a whole series of transformations at the ethical, legal and political levels. In order to trace back the philosophical conditions of possibility of such change, it will study the scope of the theory of relations and the theory of properties. After its exhaustive analysis, it concludes that the theory of relations has a greater explanatory and operational scope than the theory of properties. After exploring the moral justification of sensocentrist and biocentrist arguments, it invites to the cultivation of non-destructive relations with any entity, strengthening a relational ontology as a way out of the current ecological crisis.
Concept and Practice of Dissensus in Félix Guattari’s Ecosophy
Authors: Landaeta Patricio , Rojas Cristóbal Durán
Published: February 2024

Abstract An approach to Félix Guattari's Ecosophy is proposed based on the analysis of the logic of dissent. Our hypothesis is as follows: promoting a dissensual practice is vital to eco-ethological knowledge that pursues the resingularization of experience in the context of increasing homogenization operated by Integrated World Capitalism. As Guattari emphasized during his visit to Chile, the object of eco-ethology is not the critique of capitalism but to mobilize its active confrontation. The practice of dissent, in this direction, would make it possible to act against the homogenizing devices of subjectivity at a time when capitalism, after colonizing the world, also colonizes the unconscious. The article deals with the formulation of dissent in Guattari's visit to Chile in 1991, establishing a counterpoint with his analysis in writings of recent years; it then analyses the articulation of dissensual logic in Guattari's ontology. Finally, it explores the function of the logic of dissensus in the configuration of institutions from the perspective of transversality.
Espessura e excursão diafragmática em recém-nascidos usando ultrassonografia cinesiológica do diafragma: um estudo observacional
Authors: Andreazza Marimar Goretti , Binotto Cristiane Nogueira , Cavalcante da Silva Regina P. G. Vieira , Valderramas Silvia , Lima Monica Nunes
Published: February 2024

Resumo Introdução O estudo do músculo diafragma tem des-pertado o interesse dos fisioterapeutas que trabalham com ultrassonografia cinesiológica. Ainda pouco explo-rado, contudo, seus achados podem contribuir para a prática clínica dos pacientes internados em unidades de terapia intensiva neonatal (UTIN). Objetivo Mensurar a excursão e o espessamento diafragmático e descrever as medidas entre recém-nascidos prematuros e a termo. Métodos Realizou-se ultrassonografia cinesiológica diafragmática em recém-nascidos internados em UTIN, posicionados em supino em seu próprio leito, no sexto dia de vida. Foram realizadas três medidas repetidas do mesmo ciclo respiratório, tanto da excursão quanto do espessamento diafragmático. Resultados Participaram do estudo 37 recém-nascidos, dos quais 25 eram pre-maturos. O peso no momento da coleta foi de 2.307,0 ± 672,76 gramas e a idade gestacional foi de 35,7 ± 3,3 semanas. A excursão diafragmática aumentou de acordo com o aumento da idade gestacional (p = 0,01; df = 0,21). A espessura variou entre 0,10 e 0,16 cm durante a inspiração nos prematuros e entre 0,11 e 0,19 cm nos nascidos a termo (p = 0,17; df = 0,35). Conclusão Houve correlação positiva entre a excursão diafragmá-tica e a idade gestacional. Não observou-se diferença estatisticamente significativa das medidas de excursão e de espessamento diafragmático inspiratório entre recém-nascidos prematuros e recém-nascidos a termo, embora apontando para maiores medidas neste último grupo.
Teachers’ perceptions of an emotional education program: a qualitative study
Authors: Furlan Natália Pozzan , Della Méa Cristina Pilla
Published: February 2024

ABSTRACT Emotional education is of paramount importance for the integral development of the human being. The objective was to analyze the perceptions of teachers about the impacts and changes in behavior after carrying out an emotional education program with children enrolled in early childhood education. Five teachers participated who performed an emotional education program in early childhood education with children from 3 to 5 years old from a private school located in Rio Grande do Sul. A semi-structured online interview was used to collect data and the responses were analyzed using Bardin’s content analysis. The teachers highlight the importance of an emotional education program and the ludic help in this process. The children showed improvement in learning and interpersonal relationships. It is concluded that an emotional education program in early childhood education has an educational and preventive purpose, allowing children to know about emotions and be able to evaluate and have more assertive behaviors in everyday situations.
A Administração Educacional em Portugal em análise
Authors: de Carvalho Maria João
Published: February 2024

RESUMO Este trabalho de natureza reflexiva tem o propósito de realizar uma abordagem do estatuto epistemológico da Administração Educacional baseada nos principais contributos para a sua afirmação como disciplina autônoma, identificando alguns aspetos que dificultam e alavancam o seu entendimento como ciência. Realizamos uma abordagem a alguns aspetos explicativos para a recente biografia da designação de Administração Educacional, não deixando de identificar o modo como o conceito se estabelece em contexto português, e fazemos referência às suas dimensões técnica e política, dando conta da relação de dependência que entre elas se estabelece, muito embora existam perspetivas que enfatizam cada uma das dimensões em prejuízo da outra.
Educación de los párvulos y de la tierna edad en Colombia, 1870-1930
Authors: Martínez Velasco Miguel Ángel
Published: February 2024

RESUMEN El artículo analiza la emergencia de la educación de la tierna edad y de los párvulos en Colombia entre 1870 y 1930 para gobernar al hombre desde el nacimiento, tanto en el hogar como en la escuela. Se recurrió a la historia de la práctica pedagógica como método, así mismo se empleó la lectura temática como metodología. Conceptualmente se utilizó la noción de gubernamentalidad para analizar la conducción de las conductas de los niños a partir de las relaciones que se tejen entre prácticas, racionalidades y tecnologías. Como resultados se presentan la individualización de la infancia en dos subetapas: los párvulos y la tierna edad, el desarrollo y la salvación del alma infantil como uno de los fines educativos y la maternalización de la educación como estrategia de gobierno. El texto finaliza problematizando la crisis actual de la educación de la(s) infancia(s) a la luz de los planteamientos de las sociedades neoliberales, para proponer otros modos de gobierno de los niños y las niñas.
Afiliação dos estudantes negros e/ou de camada popular ao curso de medicina: uma revisão de literatura
Authors: Fukutani Yzumi , Sampaio Sônia
Published: February 2024

Resumo O presente artigo tem como tema a afiliação dos estudantes negros e/ou de camada popular ao curso de medicina e objetiva apresentar revisão de literatura realizada por meio de levantamento bibliográfico nos repositórios Catálogo de Teses & Dissertações, do portal da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes), Biblioteca Digital Brasileira de Teses e Dissertações (BDTD), Scientific Electronic Library Online (Scielo) e Google Acadêmico. Foram utilizados os descritores “afiliação”, “estudante negro”, “estudante de camada popular”, “cotista”, “curso de medicina” e “Coulon”, conjugados com o operador lógico booleano “e”. As buscas privilegiaram a língua portuguesa, por se tratar do contexto universitário brasileiro e, após refinamento, considerando a delimitação temporal dos cinco últimos anos e a pertinência ao recorte epistemológico dado ao estudo, foram selecionadas 20 produções. Os resultados sugerem que os estudantes negros e/ou de camada popular ainda são os primeiros de suas famílias a ingressarem na universidade, que é percebida por eles como um espaço de ressignificação e mobilidade social. Questões raciais, sociais e econômicas perpassam por toda sua trajetória estudantil. É percebido um comprometimento da qualidade de vida desses estudantes para que consigam alcançar sucesso acadêmico. Assim sendo, considera-se a pertinência do acolhimento e da implicação da universidade no processo de afiliação do estudante negro e/ou de camada popular e da ausência da análise das relações de subalternidade no conceito de afiliação de Coulon.
On Mitigating the Utility-Loss in Differentially Private Learning: A New Perspective by a Geometrically Inspired Kernel Approach
Authors: Kumar Mohit , Moser Bernhard A. , Fischer Lukas
Published: February 2024

Privacy-utility tradeoff remains as one of the fundamental issues of differentially private machine learning. This paper introduces a geometrically inspired kernel-based approach to mitigate the accuracy-loss issue in classification. In this approach, a representation of the affine hull of given data points is learned in Reproducing Kernel Hilbert Spaces (RKHS). This leads to a novel distance measure that hides privacy-sensitive information about individual data points and improves the privacy-utility tradeoff via significantly reducing the risk of membership inference attacks. The effectiveness of the approach is demonstrated through experiments on MNIST dataset, Freiburg groceries dataset, and a real biomedical dataset. It is verified that the approach remains computationally practical. The application of the approach to federated learning is considered and it is observed that the accuracy-loss due to data being distributed is either marginal or not significantly high.
Bactericidal effect of nanosilver synthesized with Neolitsea cassia mucilaginous extract
Authors: Warnasooriya Sachinthani Rajika , Jayasinghe Asanka Dilup , Asanthi Hewa Bandulage , Kodithuwakku Erandi Prasadika
Published: February 2024

This study focused on green synthesis of silver nanoparticles using mucilaginous leaf extracts of Neolitsea cassia and demonstrating the bactericidal effect of the product against Staphylococcus aureus and Escherichia coli, which are common in polluted water. A concentration series of silver nitrate was subjected to four treatments by mixing with separate (a) aqueous and (b) 80% methanol extracts of N. cassia leaves in (c) atmospheric and (d) nitrogen gaseous environments, for comparison. A linear increment of the dry weight of silver nanoparticles was observed with increasing silver nitrate concentration (r = 0.99, p = 0), resulting in higher yields from 80% methanol extracts in an atmospheric environment. As characterized by surface plasmon resonance absorption, energy-dispersive X-ray spectroscopy and scanning electron microscopy, quasi-spherical crystalline silver nanoparticles of 11.7 nm average diameter were synthesized. The disk diffusion method showed that the growth of E. coli and S. aureus in culture media was increasingly inhibited with increasing nanoparticle concentration (r = 0.95, p = 0 and r = 0.93, p = 0, respectively). It was concluded that 80% methanol extract in an atmospheric environment was the most productive way to green-synthesize silver nanoparticles from the mucilaginous sap of N. cassia.
ZnO-doped β-TCP ceramic-based scaffold promotes osteogenic and antibacterial activity
Authors: Mangaraj Sangita , Priyadarshini Itishree , Swain Subhasmita , Rautray Tapash R
Published: February 2024

β-Tricalcium phosphate (β-TCP) scaffolds, which are synthetic bone graft materials, have been explored as a potential solution in the healing of bone deformities due to their acceptable degradation rate and ability to support bone growth. However, these scaffolds have limitations such as poor mechanical properties, to stimulate bone growth, which increases the risk of infection after implantation. To overcome these issues, a new type of biomedical scaffold was developed that incorporated zinc oxide (ZnO) particles into β-TCP using wet chemical techniques. The scaffolds were created using sintering to produce porous β-TCP scaffolds with good connectivity. The addition of zinc oxide as a dopant significantly improved the biophysical properties of the scaffolds, with higher concentrations of zinc oxide, leading to better cell adhesion and proliferation. The scaffolds placed in simulated body fluid demonstrated exceptional ability to promote bone growth and regeneration by developing a bone-like apatite layer on their surfaces. The mechanical and physical properties of the scaffolds were effectively assessed using X-ray diffraction and scanning electron microscopy analyses. To validate the efficacy of the specimen in preventing microbial growth and promoting bone growth, a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) test and gene expression investigation were conducted. Zinc oxide-doped β-TCP scaffolds are envisaged to show enormous potential for use in future bone-healing applications.
Effect of Mo on the σ-phase precipitation behavior of super-austenitic stainless steel
Authors: Hu Qun-kun , Du Hua-yun , Sun Xiaolu , Hou Li-feng , Wang Qian , Guo Zhanhu , Li Handong , Fan Jincheng , Wei Ying-hui , Liu Xiao-da , Wei Huan , Guo Xingkui
Published: February 2024

The aging precipitation behavior of super-austenitic stainless steels 904L (4.32% molybdenum (Mo)), 254SMo (6.06% molybdenum) and AL-6XN (6.29% molybdenum) with different molybdenum contents at 800–900°C was investigated by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The effect of molybdenum content on the σ-phase precipitation behavior of commonly used super-austenitic stainless steel was investigated. The results show that the super-austenitic stainless steels with different molybdenum contents formed different numbers and shapes of σ phases in the isothermal aging process, and the number of σ phases of 254SMo and AL-6XN is much larger than that of 904L, and the shape of the σ phases mainly shows coarse acicularity and elongation, while the σ phases of 904L show fine granularity.
El agua como agente principal de la inestabilidad de taludes
Authors:   Universidad Cooperativa de Colombia, Camacho Angarita Liliana , Granados Muñoz Claudia Ximena
Published: February 2024

Bajo los procesos de inestabilidad de un talud y la ocurrencia de un deslizamiento y falla del mismo, se ve involucrada la influencia del agua, ya sea por presencia de nivel freático, por infiltración de lluvia o por agua subterránea. Esto ocurre tanto en taludes naturales de ladera, como también los taludes artificiales generados por cortes del terreno natural o la construcción de terraplenes. Por lo tanto, el análisis hidrostático es de gran importancia para el estudio de la estabilidad de taludes, ya que la presencia de agua reduce la resistencia del suelo y aumenta las fuerzas que tienden a la inestabilidad.
Reasons Behind Words: OPEC Narratives and the Oil Market
Authors: Brunetti Celso , Joëts Marc , Mignon Valérie
Published: February 2024

We analyze the content of the Organization of the Petroleum Exporting Countries(OPEC) communications and whether it provides information to the crude oil market. To this end, we derive an empirical strategy which allows us to measure OPEC’s public signal and test whether market participants find it credible. Using Structural Topic Models, we analyze OPEC narratives and identify several topics related to fundamental factors, such as demand, supply, and speculative activity in the crude oil market. Importantly, we find that OPEC communication reduces oil price volatility and prompts market participants to rebalance their positions. Our analysis indicates that market participants assess OPEC communications as providing an important signal to the crude oil market.
Difference-in-Differences in the Marketplace
Authors: Minton Robert , Mulligan Casey B.
Published: February 2024

Price theory says that the most important effects of policy and technological change are often found beyond their first point of contact. This appears opposed to econometric methods that rule out spillovers of one person’s treatment on another’s outcomes. This paper uses the industry model from price theory to represent the statistical concepts of treatments and controls. When treated and control observations are in the same market, the controls are indirectly affected by the treatment. Moreover, even the effect of the treatment on the treated reveals only part of the consequence for the treated of treating the entire market, which is often the parameter of interest. Marshall’s Laws of Derived Demand provide a guide for empirical work: precise price-theoretic interpretations of the direct and spillover effects of a treatment, the quantitative relationships between them, and how they correspond to the scale and substitution effects emphasized in price theory.
On the GDP Effects of Severe Physical Hazards
Authors: Bodenstein Martin , Scaramucci Mikaël
Published: February 2024

We assess the impacts from physical hazards (or severe weather events) on economic activity in a panel of 98 countries using local projection methods. Proxying the strength of an event by the monetary damages it caused, we find severe weather events to reduce the level of GDP. For most events in the EM-DAT data set the effects are small. The largest events in our sample (above the 90th percentile of damages) bring down the level of GDP by 0.5 percent for several years without recovery to trend. Smaller events (below the 90th percentile) see a less immediate decrease in initial years (0.1 percent) that progressively widens to become similar to the effect of larger disasters after 10 years. Climatological hazards (droughts and forest fires) appear to have the largest effects. These findings are robust across country groupings by development and alternative measures of the strength of the physical hazard.
Dynamic Weighted Cumulative Residual Entropy Estimators for Laplace Distribution: Bayesian Approach
Authors:   Research Scholar, Mathematics, M. D. University, Rohtak, Haryana, India, Savita Savita , Kumar Rajeev
Published: February 2024

Objectives: To develop Bayesian estimators of dynamic weighted cumulative residual entropy (DWCRE) for Laplace distribution and to investigate posterior risks using various priors and loss functions. Methods: Weighted entropy measure of information is provided by a probabilistic experiment whose basic events are described by their objective probabilities and some qualitative (objective or subjective) weights. In this paper, we have used priors (Jeffrey’s, Hartigan, Uniform and Gumble Type II) and several loss functions. Findings: Bayesian estimators and associated posterior risks for Laplace distribution have been derived for different priors and loss functions. Monte Carlo Simulation study and graphical analyses have also been presented along with the conclusion. Through the comprehensive simulation study in the paper, it has been observed that Hartigan prior is better than other priors in terms of the posterior risk whereas Uniform prior has always higher posterior risk. Novelty: The introduction of new Bayesian estimators and their posterior risks for dynamic weighted cumulative residual entropy (DWCRE) of Laplace distribution. Keywords: Bayesian estimators, Laplace distribution, Fisher information matrix, Loss functions, Priors
M/M/1/K Loss and Delay Interdependent Queueing Model with Vacation and Controllable Arrival Rates
Authors:   PG & Research Department of Mathematics, St. Joseph’s College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India, Subhapriya S P , Thiagarajan M
Published: February 2024

Objectives: In this study, we assume that the vacation is taken while there are no consumers in the queue. There are several servicemen who will take the synchronous multiple vacations in the system. Methods: Assumed some loss and delay in consumers (Elective and emergency) and solve the steady-state probability equations using recursive approach and acquired some obvious iterative expressions. Findings: Carried out some numerical analysis using MATLAB and investigated the movement of , , and through graph. Further, , , and increase when increases; decrease when M increases. Additionally, when L increases remains constant and increase. Novelty: Expanded the preceding models in this study by including vacations and performing the numerical analysis. Using vacation with controllable arrival rates in an optimal way in order to benefit both the server and the customer will minimise waiting time and provide the most feasible, affordable service to the consumer. Keywords: Markovian Queueing System, Vacation, Loss and Delay, Finite Capacity, Interdependent Arrival and Service Rates, Varying Arrival Rates, Bivariate Poisson Process
Reliability Analysis of the Shaft Subjected to Twisting Moment and Bending Moment for The Exponential and Weibull Distributed Strength and Stress
Authors:   Research scholar, Department of Mathematics, Kakatiya University, Warangal, 506009, Telangana, India, Pasha Md Yakoob , Devi M Tirumala , Maheswari T Sumathi Uma
Published: February 2024

Objectives: The purpose of the present work is to design a shaft subjected to twisting moment, bending moment and combined twisting and bending moment by determine the reliability of the shaft. Methods: Probabilistic approach is considered to find the lifetime of shaft by taking stress as random variable. Exponential and Weibull distributions are used to find lifetime of the equipment stress is considered as exponential and Weibull random variable. When the shaft is subjected to combined twisting and bending moment, the stress is found by using the two theories: (i) The maximum shear stress theory is used for ductile materials such as mild steel. (ii) The maximum normal stress theory is used for brittle materials such as cast iron. Findings: Reliability of the shaft is derived subjected to twisting and bending moments. The reliability is computed and compared for changing of the twisting moment, bending moment and diameter of the shaft. Novelty: To design a shaft by using reliability theory and to find reliability of the shaft by using the exponential and Weibull distribution is the novel idea. Keywords: Reliability, Weibull distribution, Shaft, Twisting moment, Bending moment, Combined twisting and bending moment, Exponential distribution, Maximum normal stress theory, Maximum shear stress theory
Clustering-based Recommendations for Enhancing Students’ Academic Performance by Recognizing Prevalent Assessment Method using Exploratory Data Analysis
Authors:   Associate Professor in Computer Science, Lady Doak College, Madurai, Tamil Nadu, India, Sofia G , Hema D
Published: February 2024

Objectives: To analyse students’ academic performance based on assessment methods and determine the most prevalent one through which students can be categorised for recommending optimal student-centered pedagogies that enhance students’ performance. Methods: Exploratory Data Analysis identifies the implications of the assessment methods based on the marks obtained by students in Continuous Assessments (CA) and the Cumulative Test (CT). Continuous Assessment (CA) and Cumulative Test (CT) marks of three subjects that come under foundation science, elective, and skill-based course of 100 undergraduate students are collected from a reputed Arts and Science Institution using stratified sampling technique, analyzed, and the recommendations are made based on the statistical observations and cluster analysis. Clustering recognises learning patterns of the students’ on the learners’ data. The Elbow method determines the number of clusters where the Silhouette score identifies the best suitable clustering technique for the dataset. K-Means Clustering categorises students based on their performance, that helps to give recommendations to improve. Findings: Based on Univariate and Bivariate analysis on the dataset, this work identifies Continuous Assessment (CA) as a prevalent evaluation strategy that motivates students to get engaged throughout rather than just before the exam. Based on the Silhouette Score (above .5), K-Means clustering is chosen to discover hidden patterns in the assessment marks depending on the three clusters determined by the Elbow method. It helps to identify the underperformers (46%) and suggest personalised recommendations for improving student’s academic performance as per clusters. Novelty: This work integrates Statistical Analysis and Clustering Analysis as per the optimal clusters determined by the Elbow method for identifying patterns hidden in assessment marks based on the prevalent assessment types. As a result, it enables more personalised recommendations for recognising the predominant assessment method and boosting academic achievement. Keywords: Continuous Assessment, Cumulative Test, Statistical Analysis, Exploratory Data Analysis, Univariate, Bivariate, Cluster Analysis, Elbow Method, K­Means Clustering
Elevated body swing test in rats v1
Authors: not provided eduard.bentea , Sanchiz Calvo María , Baekelandt Veerle
Published: February 2024

Protocol for performing the elevated body swing test in rats. The elevated body swing evaluates motor asymmetry in body swings when the rat is briefly hanged by the tail, and can be used in animal models with unilateral lesions of the nigrostriatal dopaminergic pathway.
Recombinant retroviral vectors that express EGF, TGF alpha, NRG2 beta, and the NRG2 beta Q43L mutant v2
Authors: Wilson Ella
Published: February 2024

Here we describe the construction of recombinant retroviral expression vectors based on pLXSN-HygR that drive the ectopic expression of the Epidermal Growth Factor (EGF), Transforming Growth Factor alpha (TGFalpha), Neuregulin 2beta (NRG2beta), or the NRG2beta Q43L mutant protein.
"BLOOD ROSES". LIFE AND CREATIVITY OF LYUDMILA FOY - LEGENDS OF THE UKRAINIAN LIBERATION MOVEMENT
Authors:   Research Institute of Ukrainian Studies, Kyiv, Ukraine, HAZIZOVA Olena
Published: February 2024

In Ukraine, under the conditions of military aggression by the Russian Federation, the role of women in the heroic struggle of the Ukrainian people against the aggressor is increasingly growing. In this aspect, gender history is important - a field that examines the history of women in different periods. The most relevant today is the study of the history of the Ukrainian liberation movement, in particular the participation of Ukrainian women in it, which makes it possible to reveal the gender component of the national liberation struggles of the Ukrainian people from a new, sometimes unexpected side. As scientists note, women made a significant contribution to the development and activity of the Ouniv underground, their practical activity in the Ukrainian national liberation movement was extremely multifaceted. The study is focused on highlighting the role of Ukrainian women in the Ukrainian liberation movement in the 1940s and 1950s. on the example of the life and creative path of one of the most mysterious figures of the Ukrainian liberation movement, Lyudmila Foya (1923–1950), a liaison underground of the Organization of Ukrainian Nationalists (Bandera) in Kyiv during the Second World War, a prisoner of the internal prison of the NKGB of the Ukrainian SSR, a participant armed struggle of the Ukrainian Insurgent Army in Volyn and Polissia. Reading the works of L. Foya will allow us to return the name of this unique writer to Ukrainian literature. Her works are aimed at the formation of patriotic values of a young person, who is in constant dynamic development of the value-emotional sphere, acts as a driving force, on whose views the development of Ukrainian statehood depends.
MEMORY OF WORLD WAR II IN THE CONDITIONS OF THE RUSSIAN-UKRAINIAN WAR: STATEMENT OF THE PROBLEM
Authors:   National Technical University «Kharkiv Polytechnic Institute» Ukraine, DVORKIN Ihor
Published: February 2024

Today, in the conditions of a full-scale brutal war unleashed by the Russian Federation, Ukraine is experiencing the greatest upheaval since the World War ІІ. The memory of the previous war on Ukrainian territory played and continues to play a significant role in the scientific, political, and cultural spheres. The purpose of this article is to highlight the main aspects of the study of the memory of the Second World War in the conditions of the Russian-Ukrainian war (since 2014). We believe, that the proposed directions are relevant today and in the future. Before the Revolution of Dignity and the beginning of the Russian aggression in 2014, post (Soviet) and national narratives of the politics and culture of remembrance of the Second World War existed simultaneously in the Ukrainian discourse. After the mentioned events, and especially after the legally enshrined refusal of using the term "Great Patriotic War" and other changes, the national paradigm of war memory was finally established. There have been decisive changes in the politics of memory, historical politics, commemorative practices, the teaching of the events of World War II history in school, etc. This article proposes and briefly analyzes problems that, in our opinion, may be of interest to Ukrainian and foreign researchers of enshrined refusal memory, memory politics, historical politics, etc. That is Euromaidan, the beginning of Russian aggression and a rethinking of the previous paradigm of commemoration of the war, in particular the "decommunization laws" of 2015. The impact of a full-scale Russian invasion in 2022, legislative changes in 2023. Russian instrumentalization of commemoration of the Second World War in the conditions of hybrid and full-scale wars and the Ukrainian response. "Places of memory" dedicated to the war in urban space and changes in commemorative practices. Memory of the Second World War in toponymy - the dynamics of changes. Images of war in the educational process, etc.
IDEOLOGICAL FOUNDATIONS OF RUSSIAN ІMPERIAL POLICY IN THE WRITINGS OF YURY SHEVELOV
Authors:   National Technical University of Ukraine ", DENYSIUK Serhiy ,   Igor Sikorsky Kyiv Polytechnic Institute",   , Kyiv, Ukraine
Published: February 2024

The article examines the contribution of outstanding Ukrainian scientist Yury Shevelov about understanding of ideological prerequisites of Russian imperial policy and its basic manifestation in relation to Ukraine. It`s asserted that this problem is present in different works of the scientist and is important for understanding his historiosophical and cultural concepts. It is noted that Yury Shevelov categorically denied a simplified a superficial approach of certain aspects of Russian history, in particular the role of Finno-Hungarian origin in the ethnogenesis of Russians. In a number of his works the researcher pointed out the special importance of Byzantine traditions of state and social life in formation of foundations of Russian imperial policy. Yury Shevelov argued that the omnipotence of the state and the lawlessness of an individual became the defining essential features of the of the existence of the Russian colonial empire. The state skillfully camouflaged its aggressive goals with the interests of the entire nation, which became the basic for intellectual manipulation and speculation. The researcher shows how a distorted understanding of the people takes root in the environment of the Russian intelligentsia, proves that the hypertrophied idealization of the people has nothing to do with its true essence. Yury Shevelov demonstrated this on the example of the work of the world-famous Oleksandr Solzhenitsyn, who was unable to overcome imperial complexes in their attitude towards the colonized nations of the Soviet Union. The article points out Yury Shevelov`s emphasis on the continuity between the Russian Empire and the communist USSR, which the researcher regarded as a new form of Russian chauvinism. In some issues the Soviet government even surpassed its predecessors. In particular, as the outstanding linguist Yury Shevelov argued, it was the Soviet innovation that became the intervention in the internal laws of the Ukrainian language, which even the tsarist administration in pre-revolutionary Russia did not resort to. Among the negative consequences of the Russian imperial rule for Ukrainian nation Yury Shevelov particularly singled out the emergence of a complex of provincialism, slave psychology, and orientation towards external power. The constant struggle with provincialism in all its forms became pervasive in the scientist`s creative activity. It is emphasized that in his writings YuryShevelov considered the Russian state as a colonial empire, and the relations between Ukraine and Russia as colonies and metropolises, which are in a state of a great and still unfinished war.
DEVELOPMENT OF THE MUTUAL AID AND SUPPORT ON UKRAINIAN LANDS: PECULIARITIES IN THE CONDITIONS OF THE FIRST WORLD WAR IN THE WEST OF UKRAINE
Authors:   Bohdan Khmelnitsky Melitopol State Pedagogical University, Ukraine, POLIAKOVA Larysa
Published: February 2024

DEVELOPMENT OF THE MUTUAL AID AND SUPPORT ON UKRAINIAN LANDS: PECULIARITIES IN THE CONDITIONS OF THE FIRST WORLD WAR IN THE WEST OF UKRAINE