bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Image of the Chinese Communist Party from the Perspective of American Mainstream Media (1935-1938): Based on Reports from The New York Times
Authors: ZHU Yuntao
Published: October 2024

Please refer to the URL that includes this article for the abstract.
Scholar Profile
Authors: LIN Shan
Published: October 2024

Please refer to the URL that includes this article for the abstract.
Fixed-bed natural gas CO2 adsorption performance of ZSM-5 zeolites impregnated with amines
Authors: Loucif Mohamed , Bidaoui Mourad , Fedag Ahmed , Chemrak Mohammed Amin , Chaker Yassine , Bouabib Meriem , Deba Asma , Rhaiem Abdallah Ben , Oueslati Abderrazek , Mahmoud Abdelfattah , Boschini Frédéric
Published: October 2024

This research studies the fixed-bed natural gas carbon dioxide (CO2) adsorption performance of ZSM-5 zeolites impregnation with different amines: monoethanolamine (MEA), ethylenediamine (ED), ethylenediaminetetraacetic acid (EDTA), and 4-aminophenol. The structural, morphological, and performance characteristics of the modified zeolites were examined through the use of several analytical techniques. These techniques featured Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The thermogravimetric analysis revealed weight losses in two stages linked to the removal of bound water molecules and the breakdown of the hydroxyl structure. Through fixed bed adsorption experiments, it was discovered that ZSM-5 zeolites functionalized with MEA/ED showed the CO2 adsorption capacity. This study investigated how well four different mathematical models—Clark, Yoon-Nelson, Thomas, and Adams-Bohart—could predict CO2 adsorption breakthrough curves from natural gas using non-linear regression methods. The results showed that all models had very high adjusted determination coefficients (Adj. R²) of over 0.99, indicating they matched the experimental data really well for various adsorbents. The analysis highlighted the models' effectiveness in reflecting adsorption kinetics and capacities, particularly noting the superior performance of the Thomas, Adams-Bohart, and Yoon-Nelson models in capturing uniform breakthrough behaviors. These findings underscore the models' utility in enhancing CO2 removal processes in natural gas purification, which is pivotal for optimizing industrial gas processing systems. These results highlight the efficiency of amine-functionalized ZSM 5 zeolites in capturing CO2 from natural gas streams.
Impact of cold block shapes on heat transfer and mixed convection in a ventilated square cavity with Ag/water nanofluid
Authors: Razik Benderradji , Meryem Brahimi , Fares Khalfallah , Elhadj Raouache
Published: October 2024

This study investigates mixed convection in a ventilated square cavity filled with an Ag/water nanofluid, containing central cold blocks of various shapes (square, circle, triangle, and ellipse). The goal is to understand the impact of nanoparticle concentration and the geometric shapes of the blocks on heat transfer. In the cavity, the inlet is located in the upper left corner, while the outlet is positioned in the lower right corner. Mixed convection is induced by cooling at the inlet of the ventilated cavity and uniform heating of its lower wall. The equations governing the flow of an incompressible Newtonian nanofluid are assumed to be two-dimensional, stable, and laminar. The finite volume method is used for numerical simulations. The effect of four different geometric shapes of the cold obstacle (circular, square, triangular, and elliptical) on fluid flow and heat transfer rate is also explored. The results show that increasing the nanoparticle concentration enhances heat transfer within the cavity. This improvement is particularly notable when the central cold obstacle takes on a circular shape, leading to better mixed convection and a higher heat transfer rate. The square and triangular shapes yield similar, albeit slightly lower, results, while the elliptical shape is the least effective for heat transfer.
Defect characterization from magnetic field leakage signals in petroleum and natural gas pipelines
Authors: Belkhiri Kamel , Bouchala Tarik , Abdou Abdelhak , Abdelhadi Bachir , Khebal Merwane , Guettafi Amor
Published: October 2024

Pipelines transport invaluable energy resources such as crude oil and natural gas over long distances. The integrity of the piping system in terms of safety of the process is then of high importance. However, pipes are prone by time to defects that may degrade their properties and lead to failures. In this paper, we study the effect of defect parameters on the magnetic field leakage captured by Hall sensors operating along the pipe. In fact, the obtained results show that the defect parameters influence directly the MFL amplitude and shape. For this reason, the inversion problem allowing us to reconstruct the defect from the MFL signals became fast and easier in comparison to the deterministic and probabilistic algorithm inversion procedure. However, the simplified system cannot describe the real defects and the three-dimensional numerical study became necessary. In tank floor inspection domain, as our recent published work, we have studied the performance of defect shape reconstruction from MFL array sensor imaging and depth estimation while using an iterative inversion method. Indeed, the first stage consists of determining the defect width and length from magnetic flux leakage mapping reconstructed from the recorded signals of the micro-integrated magnetic sensors. Then, after coupling Comsol and Matlab software, the defect depth is obtained by coupling the 3D finite elements method and a fast iterative algorithm recently developed. Consequently, the defect shape and size are obtained after a few iterations with high precision. Furthermore, this method of defect reconstruction and seizing can be extended for irregular defect shapes encountered in pipeline such as cracks and corrosion.
Impact of barriers on dielectric strength and electric field distribution in point-plane air gap configurations
Authors: Becha Habiba , Benguesmia Hani , Bakri Badis , Benguesmia Mohammed , M’ziou Nassima
Published: October 2024

This study presents a numerical investigation into the dielectric strength of point-plane air gaps, specifically focusing on the influence of dielectric barriers on the potential and electric field distributions under alternating current (AC) voltage. By utilizing two-dimensional (2D) electrostatic simulations through the finite element method (FEM), both configurations—with and without dielectric barriers—are analyzed to assess their impact on vertically arranged point-plane gaps. The study demonstrates that the inclusion of a dielectric barrier plays a crucial role in redistributing the electric field, leading to a more uniform distribution and reducing localized peaks. This results in enhanced dielectric strength, allowing the system to withstand higher voltages without breakdown. The findings are significant for the design and optimization of high-voltage insulators, as incorporating dielectric barriers can improve overall insulation performance and reliability. By improving the electric field distribution, these barriers contribute to reducing the risk of insulation failure, thereby increasing the efficiency and longevity of high-voltage components, making them more reliable for applications in power transmission systems.
Estratégias e tendências no desenvolvimento de bebida láctea fermentada caprina
Authors: Silva Pedro Ivo Soares e , Oriente Suelma Ferreira do , Santos Rebeca Morais Silva , Nascimento Amanda Priscila Silva , Taveira Julyana Cardoso , Pessoa Julia Morais , Gusmão Rennan Pereira de , Gusmão Thaisa Abrantes Souza
Published: October 2024

As bebidas lácteas à base de soro de leite são importantes para as indústrias láctea devido ao seu valor econômico e ambiental e à grande aceitação sensorial. O objetivo do estudo é conceituar e discutir sobre a temática bebida láctea fermentada caprina em termos estrátegias e tendências através de uma revisão bibliográfica interativa. A abordagem metodológica permitiu o uso de estudos experimentais e não experimentais na base do ScienceDirect (Elsevier) e Scholar Google. Os tópicos leite caprino, soro caprino, bebida láctea fermentada, probióticos, prebióticos e desenvolvimento de bebida láctea fermentada caprina na literatura foram explorados para melhor compreensão sobre o tema proposto. A bebida láctea fermentada caprina é um produto versátil e amplamente aceito no mercado, podendo ter em suas forumulações diferentes concentrações de soro do leite, probióticos, prebióticos e insumos não lácteos. Portanto é uma alternativa viável para a indústria láctea considerando sua composição nutricional como também no aspecto ambiental se tratando do reaproveitamento e agregação do soro do leite.
Entre educar e envelhecer e envelhecer educando: uma reflexão antropológica sobre histórias de vida de professoras
Authors: Conceição Rafael Reis , Souza Cesar Augusto Gomes de
Published: October 2024

Este artigo busca ilustrar os valores do cuidado e da vigilância, inscritos no processo histórico de feminização do escolar, por meio das representações e memórias de professoras em exercício na docência há mais de quinze anos. A partir de conceitos da antropologia do envelhecimento, a crise da autoridade docente, em sua "fragilização simbólica", é analisada por meio de histórias de vida que enunciam diferentes percepções acerca dos percursos do lugar da mulher, das relações intergeracionais e do papel socializador da escola e da família. Nesse sentido, os estigmas atribuídos à figura da "professorinha" ou à retórica das "mães espirituais" são dimensionados pelas trajetórias de mulheres que conferem diferentes noções de prestígio às funções de educadora, assim como aos dramas sociais vivenciados pelo envelhecimento. Para isso, a reinvenção da velhice, que tem como fundamento a juventude transformada em valor a ser perseguido, situa a experiência da docência em ambiguidades simbólicas, em uma sociedade contemporânea que redimensiona as fronteiras etárias e o caráter do conhecimento. Assim, a compreensão dessas dinâmicas traz contribuições ao campo da antropologia sobre a forma escolar, suas especificidades culturais e as elaborações sobre gênero e cuidado, autoridade e gerações.
Professor-tutor da educação a distância: reflexões acerca de sua atividade formativa
Authors: Pádua Carlos Alberto Lima de Oliveira , França-Carvalho Antonia Dalva
Published: October 2024

O tema do estudo em foco ancora-se no professor-tutor da Educação a Distância que desenvolve formação nos âmbitos presencial e virtual. Nesse sentido, a investigação apresenta enquanto objetivo refletir a atividade formativa do professor-tutor no contexto da Graduação em Licenciatura. Para tanto, foi utilizada uma estrutura metodológica a partir de ideias da pesquisa qualitativa, com o uso da entrevista, e a participação de professores-tutores oriundos de uma instituição de educação superior pública de contexto estadual, sendo ainda utilizados alguns direcionamentos advindos da análise de conteúdo. Os resultados indicam tanto a necessidade de conhecer o conceito de professor-tutor, no intuito de melhor caracterizar a sua função, conforme, também, as orientações da universidade, quanto valorizar a sua participação no processo de formação de professores. Em suma, é necessário repensar a autonomia ora limitada do professor-tutor, para que seja possível nova versatilidade em sua atividade formativa, bem como ampliar os estudos dessa relevante temática.
Núcleos de acessibilidade e inclusão nas instituições de ensino superior – estado de conhecimento
Authors: Ribeiro Mirtes Cabral de
Published: October 2024

Este estudo propôs apresentar um panorama do que se tem investigado sobre acessibilidade e inclusão no ensino superior a partir das produções acadêmicas voltadas para o Núcleo de Acessibilidade e Inclusão e seus congêneres no contexto das universidades. Foi realizado um levantamento e revisão das pesquisas acerca do objeto de estudo, numa perspectiva metodológica de ‘Estado de conhecimento’ sobre teses e dissertações, produzidos no país. A busca pelas produções acadêmicas, vinculadas aos Programas de Pós-Graduação realizada no recorte temporal de 2010 a 2022, por meio de pesquisa pelo Catálogo de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) e pela Biblioteca Digital Brasileira de Teses e Dissertações (BDTD), resultou o total de 37 estudos. O estudo evidenciou questões problemáticas comuns em seus vários espaços denominados de núcleos, centros. Porém, essas questões embora à primeira vista pareçam semelhantes o contexto em que elas se apresentaram depende de como os núcleos/centros estão organizados, sistematizados, além de que alguns estudos mostraram-se voltados muitas vezes a um dos contextos, ainda observa-se a falta de diálogo entre os diversos setores/departamentos que discutam e se voltam para esse conjunto de questões que muitas vezes se mostram pulverizadas.
Hipoadrenocorticismo canino: relato de caso
Authors: Dantas Luana Maria Vasconcelos , Aleixo Grazielle Anahy de Souza , Guimarães Evelen da Silva , Pontes Luana Mirela de Sales , Cardoso Paula Gabriela da Silva , Cardoso Maria Carolina , Santos Isabela Gilena Lins dos , Maciel Yannike Lourenço , Martir Ediclesio Andrade
Published: October 2024

O hipoadrenocorticismo ou Síndrome de Addison, é uma doença endócrina causada pela insuficiente produção de hormônios glicocorticoides e/ou mineralocorticoides do córtex adrenal. Os sinais clínicos de hipoadrenocorticismo não são específicos, por este motivo, frequentemente, pode existir atraso na obtenção do diagnóstico. É necessária a dosagem do cortisol, através do teste de estimulação com o hormônio adrenocorticotrófico (ACTH), para obter o diagnóstico definitivo. O objetivo deste trabalho foi descrever um relato de caso de uma cadela, com dois anos de idade, da raça Border Collie com queixa principal de vômito, apatia e fraqueza muscular que, após alterações eletrolíticas observadas no exame bioquímico, redução do tamanho das glândulas adrenais e microcardia em radiografia torácica, teve o diagnóstico de hipoadrenocorticismo. Sendo assim, o tratamento instituído para a paciente foi o de uso contínuo com Florinefe (Acetato de Fludrocortisona) e Prednisolona em redução gradativa. Atualmente a paciente apresenta resposta favorável à terapia, não apresentando recidivas de crise addisoniana.
Metodologia ativa: método PBL para extensão rural na pecuária de leite
Authors: Oliveira Mariana Luísa Chiezi de , Anizelli Adriana Cristina , Mendes Adriano Rogério , Monte Geovana Izabela do , Bento Iamara Carvalho Sabatino , Dobzynski Mariele , Andreazzi Marcia Aparecida , Emanuelli Isabele Picada
Published: October 2024

O objetivo deste trabalho foi adaptar a metodologia de aprendizagem baseada em problematização (PBL) para o uso na extensão rural, validando o PBLrural. A pesquisa utilizou grupos de discussão com técnicos de um laticínio na região Noroeste do Paraná, divididos em dois grupos: Local A (n=4) e Local B (n=4). O método desenvolvido foi composto de 5 etapas: apresentar o problema; identificar pontos-chave; buscar soluções com conhecimento prévio; compartilhar conhecimento técnico; e avaliar a sessão tutorial (questionário escala SALG 1 a 5: onde 1 o participante discorda totalmente ou Muito insatisfeito; e 5 Concorda totalmente ou Muito satisfeito). A avaliação do método resultou em uma média total positiva de 4,19. Na visão dos participantes o PBLrural contribuiu significativamente para o aprendizado (X=4,35), estimulou a participação ativa (X=4,25) e promoveu a interação entre os participantes (X=4,35). A validação e aprovação do PBLrural indicou uma eficiência como ferramenta de transmissão de conhecimento técnico no meio rural. Essa abordagem ativa de ensino-aprendizagem na extensão rural contribui para o aprimoramento dos sistemas produtivos em diferentes áreas da agricultura e pecuária.
Ensino de Ciências e Educação em Saúde na problematização da prevenção da COVID-19
Authors: Pereira Antônio Mariano Bezerra , Santos Maria Alice Araújo , Sobral Maria de Jesus Dias , Sá-Silva Jackson Ronie , Souza Vitória Raquel Pereira de
Published: October 2024

A pesquisa educacional realizada abordou a temática da educação em saúde voltada para a COVID-19 a partir de entrevistas com quatro professores de Ciências dos anos finais do Ensino Fundamental visando conhecer suas ideias sobre a doença. Com os objetivos de conhecer as ideias de professores de Ciências e de Biologia da cidade de Fortuna, Maranhão sobre a COVID-19 e sua prevenção; e de problematizar esses pensamentos sobre a COVID-19, tencionando com a teoria do Ensino de Ciências por Investigação, é que os entrevistamos. O texto discute as concepções docentes sobre o tema da prevenção da COVID-19 anunciando possibilidades didáticas para discutir o tema na escola. De acordo com os docentes é necessária a discussão do tema COVID-19 nas aulas de Ciências, a partir de diferentes metodologias e diversificados recursos didáticos. Apontaram a necessidade de abordar textos científicos referendados objetivando desvelar, tematizar, problematizar e combater notícias falsas sobre a COVID-19. Espera-se que os professores de Ciências atentem para a discussão da prevenção da COVID-19 nas aulas de Ciências e que a escola coloque na sua agenda curricular o tema da educação em saúde.
Ensino significativo de eletricidade por meio de atividades práticas no contexto da educação no campo
Authors: Gama Júnior Rosivaldo Carvalho , Moreira Marco Antonio
Published: October 2024

O objetivo deste trabalho é compartilhar e refletir alguns resultados da aplicação de um produto educacional desenvolvido em situações reais dentro e fora de sala de aula, por meio de atividades experimentais, atividades computacionais, além de aula de campo para o ensino de eletricidade, considerando os saberes prévios e/ou indagações de alunos do 3º ano do ensino médio de uma escola família agroextrativista. O desenvolvimento deste produto educacional ocorreu durante o curso em um programa profissional de pós-graduação. A pesquisa desenvolvida é de natureza qualitativa e o referencial teórico que embasou as atividades foi a Teoria da Aprendizagem Significativa, além de alguns princípios de Freire. Os instrumentos de coletas de dados foram organizados em cinco guias obedecendo à linha investigativa Predizer, Observar e explicar POE; porém, são discutidos apenas dois guias. Antes do início da aplicação de cada guia, vídeos, reportagens e um filme foram exibidos com intuito de problematizar e contextualizar o conteúdo de abordagem, servindo de organizador prévio. Os dados foram analisados de maneira descritiva, interpretativa e cronológica. Os resultados das atividades evidenciaram, com o desenvolvimento desse produto educacional, indícios de Aprendizagem Significativa, favorecida pelas atividades experimentais, computacionais e aula de campo, em que o educador foi mediador nos processos de ensino e de aprendizagem, tornando os estudantes sujeitos ativos na construção do conhecimento. Conclui-se que as atividades desenvolvidas potencializaram a aprendizagem, despertaram o interesse dos alunos, sugerindo que os pares possam desenvolver atividades que valoriza cada vez mais as vivências dos estudantes do campo.
Qualidade fisiológica de sementes de feijão submetidas a diferentes condições de armazenamento
Authors: Silva Sabrina de França , Benvenuto Elisabete Albuquerque dos Santos , Silva Daniel Henrique Feitosa e , Costa Gabriel Aubry Porto , Souza Luís Fernando dos Santos , Costa Antônio Félix da , Carvalho Filho José Luiz Sandes de , Carvalho Rejane Rodrigues da Costa e
Published: October 2024

A semente é essencial para o estabelecimento de lavouras, entretanto, a deterioração da semente de feijão durante o armazenamento, promove a redução da qualidade fisiológica, chegando a inviabilizar a semente como estrutura reprodutiva. O objetivo desse trabalho foi avaliar a qualidade fisiológica de cultivares de feijão, submetidas a diferentes condições de armazenamento. O delineamento experimental utilizado foi o inteiramente casualizado em esquema fatorial triplo 4x3x4, sendo quatro cultivares (Miranda IPA 207, IPA 206, IPA 10 e Princesa), três temperaturas (10, 15 e 25° C) e quatro períodos de armazenamento (0, 3, 6 e 9 meses), com quatro repetições. A qualidade fisiológica da semente foi avaliada através do teste padrão de germinação; primeira contagem; envelhecimento acelerado; emergência; índices de velocidade de germinação e emergência; massa fresca e seca da parte área e do sistema radicular. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Scott-Knott a 5% de probabilidade. Após 9 meses, a cultivar IPA 10 destacou-se na qualidade fisiológica, sendo superior às demais, apresentando taxas médias de germinação de 84% (10°C), 86% (15°C) e 85% (25°C), superiores a porcentagem mínima estabelecida para comercialização de sementes. A cultivar IPA 206 manteve sua qualidade nas temperaturas de 10° C (86%) e 15° C (82%), já a cultivar Princesa apenas quando armazenada à 10° C. O ambiente refrigerado (10° C) proporcionou melhores resultados para a maioria das características avaliadas, sendo a temperatura mais eficiente para a conservação da qualidade fisiológica da semente de feijão.
Avanços na terapia com imunobiológicos para artrite reumatoide: uma revisão de literatura
Authors: Santos Silas da Silva , Lima Ludmila Andrade Loubach de , Reis Nathália Ribeiro Lima , Souza Márcia Oliveira de , Gomes Damiana Cristina Rodrigues , Vasconcellos Juliana Paiva de , Faria Ivan Aurélio Fortuna Kalil de , Faria Anna Beatriz Inácio Fortuna Kalil de , Silva Raimundo Ronaldo Barbosa da , Diniz Ana Elisa Dias , Dutra Mayara Corrêa , Marinho Júlia Martins Gil , Fantoni Ana Luiza Andrade , Bandeira Karla Vitória da Silva , Fantoni Helayne Cristina Macieira
Published: October 2024

A artrite reumatoide (AR) é uma doença crônica autoimune que provoca inflamação constante nas articulações, levando a danos articulares progressivos e perda de função. O surgimento de terapias imunobiológicas transformou significativamente o tratamento da AR, principalmente em pacientes que não respondem aos tratamentos tradicionais. Este artigo faz uma análise crítica da literatura mais recente (2018-2024), destacando o uso de imunobiológicos, como inibidores de TNF, IL-6, IL-17 e JAK. Além de explorar a eficácia dessas terapias, são discutidos aspectos relacionados à segurança e à capacidade de retardar a progressão da doença. O artigo também aborda questões como o alto custo dos tratamentos e os possíveis efeitos adversos, apontando para áreas que precisam de mais pesquisa. As evidências foram extraídas de estudos clínicos, revisões sistemáticas e diretrizes terapêuticas internacionais, oferecendo uma visão completa das terapias imunobiológicas e seu impacto na prática clínica, com o objetivo de melhorar o manejo da doença e a qualidade de vida dos pacientes.
Team-Based Learning: modalidade presencial e remota no Programa de Pós-Graduação em Enfermagem
Authors: Boeckmann Lara Mabelle Milfont , Rodrigues Maria Cristina Soares
Published: October 2024

Objetivo: Descrever a vivência de docentes e discentes na pós-graduação em enfermagem utilizando o Team Based Learning (TBL), na modalidade presencial e remota. Métodos: Trata-se de relato de experiência que descreve a prática pedagógica no uso do TBL. A experiência envolveu duas docentes e 85 estudantes e se deu na disciplina de Segurança do Paciente, em uma universidade pública do Distrito Federal, Brasil. Resultados: Os resultados do estudo reproduzem uma descrição minuciosa das etapas do TBL a partir da experiência das docentes na disciplina. Discussão: Os resultados corroboraram a discussão de outros achados científicos no Brasil e em diversos países e reiteram a importância do uso do TBL em diversos contextos e áreas da educação. Conclusão: A pesquisa evidenciou uma experiência satisfatória vivenciada por docentes e discentes utilizando o TBL em ambas as modalidades, pois propiciou o desenvolvimento de competências e habilidades docentes e discentes com repercussões positivas no aprendizado na disciplina de pós-graduação em enfermagem. As evidências demonstraram que o processo ensino-aprendizagem pode ser mais significativo.
Milano tra degrado e frenesia: la Generazione Z di TikTok Mundi contro-racconta la città?
Authors: Ogliari Elena
Published: October 2024

L’articolo si propone di illustrare gli interessi conoscitivi e gli esiti della call for videos & reels “Raccontaci la tua Milano mondo!”, l’iniziativa realizzata nel quadro del progetto TikTok Mundi che ha invitato gli studenti delle scuole superiori milanesi a raccontare la città attraverso il mezzo audiovisivo. L’analisi dei 38 contributi ricevuti ha rivelato una visione di Milano come una città frenetica, spesso vista come pericolosa o alienante. Questa iniziativa ha offerto ai giovani un’opportunità unica per esprimere liberamente le loro idee e impressioni, svelando una Milano che raramente appare bella e vivibile, ma più spesso è percepita come un semplice luogo di passaggio. L’articolo si conclude con un’analisi dei contenuti audiovisivi prodotti, mettendo in evidenza come questi riflettano non solo il disagio dei giovani, ma anche il loro desiderio di agire per cambiare lo status quo.
COMPARISON OF USING J TIP GUIDE WIRE VS STRAIGHT TIP GUIDE WIRE DURING PUNCTURE AND TRACT FORMATION IN PCNL
Authors: NAZIR M , ULLAH S , SALEEM Y , RAZIQ S
Published: October 2024

Percutaneous nephrolithotomy (PCNL) is a widely used surgical technique for removing large or complex kidney stones. The choice of guide wire during puncture and tract formation may influence the procedure's ease, safety, and success. Objective: This study aimed to compare J-tip guide wire versus straight-tip guide wire during puncture and tract formation in PCNL, focusing on ease of use, safety, and clinical outcomes. Methods: A comparative study was conducted at CMH, Lahore, from April 2024 to July 2024. A total of 89 patients were randomly assigned into two groups: Group A, using the J tip guide wire (n=45), and Group B, using the straight tip guide wire (n=44). Data were collected on ease of insertion, complication rates, procedural duration, and success rates. Statistical analysis was performed using SPSS software, with p<0.05 considered statistically significant. Results: The average age of patients in Group A was 52.3 ± 10.4 years and in Group B, 50.7 ± 11.2 years. Group A demonstrated significantly better ease of insertion with a mean score of 8.7 ± 0.9 compared to 7.5 ± 1.2 in Group B (p=0.003). Complication rates were lower in Group A (4.4%) versus Group B (22.7%, p=0.024), with fewer minor traumas (4.4% vs. 15.9%, p=0.048). The procedure duration was shorter in Group A (25.4 ± 5.1 minutes) compared to Group B (30.2 ± 6.3 minutes, p=0.001). The success rate was higher in Group A (97.8% vs. 90.9%), although this difference was not statistically significant (p=0.092). Conclusion: The J tip guide wire shows significant advantages over the straight tip guide wire in PCNL procedures, offering improved ease of use, reduced complication rates, and shorter procedural duration. These findings suggest that the J tip guide wire is valuable for enhancing PCNL outcomes.
ASSOCIATION OF RADIAL ARTERY ACCESS WITH REDUCED INCIDENCE OF ACUTE KIDNEY INJURY
Authors: RAZA MT , AKHTAR B , BABAR SM , MAL K , RIZVI SNH
Published: October 2024

Acute kidney injury (AKI) is a serious complication following cardiac procedures, leading to increased morbidity and mortality. The choice of vascular access site may influence the incidence of AKI, with radial artery access potentially offering protective benefits compared to femoral artery access. Objective: To evaluate the association between radial artery access during cardiac procedures and the incidence of acute kidney injury among patients. Methods: This retrospective cohort study was conducted at the National Institute of Cardiovascular Disease from January 2023 to January 2024. A total of 370 patients who underwent cardiac procedures were included, comprising 200 patients in the radial artery access group and 170 in the femoral artery access group. Data were collected retrospectively from medical records, including demographic information, baseline renal function, procedural details, and serum creatinine levels before and after the procedure. The incidence of AKI was determined based on established criteria for changes in serum creatinine. Statistical analyses were performed using appropriate tests, with a significance level set at p < 0.05. Results: Patients in the radial artery access group had a shorter average hospital stay (2.5 ± 1.2 days) compared to the femoral group (3.8 ± 1.5 days, p = 0.001). The mortality rate was lower in the radial group (1.5%) versus the femoral group (4.1%), although this difference was not statistically significant (p = 0.09). The incidence of major adverse cardiovascular events (MACE) was 2.5% in the radial group compared to 5.9% in the femoral group (p = 0.07). Acute kidney injury occurred in 10.0% of patients in the radial artery access group (20 out of 200) versus 17.6% in the femoral artery access group (30 out of 170), indicating a significant reduction in AKI incidence with radial access. Conclusion: Using radial artery access during cardiac procedures significantly reduces the incidence of acute kidney injury compared to femoral artery access. These findings support the preference for radial artery access to minimize the risk of AKI and improve patient outcomes.
KINETIC STUDY OF ESTERIFICATION CATALYZED WITH ALUMINUM SULFATE AIMED AT CONVERTING LEVULINIC ACID INTO METHYL LEVULINATE
Authors: Silva L. C. A. F. M. , Silva P. P. , Barros Neto E. L. , Melo R. P. F. , Lopes F. W. B. , Duarte L. J. N. , Nascimento P. F. P.
Published: October 2024

Recycling lignocellulosic biomass is a sustainable alternative to the petrochemical industry since it allows the production of valuable, sustainable, and environmentally friendly chemical products, such as levulinic acid (LVA) and levulinate esters. Methyl levulinate (MLV), for example, has been assessed as a fuel additive with low toxicity, high lubricity, and flash point stability. In this respect, the present investigation details a kinetic study of methyl esterification catalyzed with aluminum sulfate aimed at converting levulinic acid into methyl levulinate. The reactions were carried out in a Parr Instruments stainless steel reactor to assess the effect of temperature (120, 140 and 160 °C) and reaction time (30, 60, 120 and 180 min) on LVA conversion into MLV, maintaining a constant LVA:methanol ratio of 1:8 and aluminum sulfate catalyst concentration of 0.04 mol.L-1. The maximum LVA-MLV conversion of 93.04 % was obtained at a temperature of 160 °C and reaction time of 60 minutes. The pseudo first-order kinetic model exhibited the best fit to the experimental data, with correlation coefficients (R²) greater than 0.96, and it was used to calculate activation energy, obtaining a value of 10.19 kcal.mol-1.
ANALYSIS OF THE ECONOMIC PERFORMANCE OF PROJECT ADVANCED OIL RECOVERY WITH CO2 INJECTION (EOR/CCUS-CO2) THROUGH FINANCIAL INDICATORS: BRAZILIAN OVERVIEW
Authors: Aboagye E. A. , Assis D. C. A. , Silva N. V. S. da , Oliveira M. L. de
Published: October 2024

Enhanced Oil Recovery (EOR) is a method associated with Carbon Capture, Utilization, and Storage (CCUS) that consists of injecting CO2 into mature oil fields to store CO2 and enhance production. CO2-EOR projects are costly, requiring technical and economic evaluations to determine their viability. This research analyzes various economic parameters in CO2-EOR projects to develop a comprehensive model for assessing their economic viability in Brazil. The model was tested on projects developed by Silva et al. (2010) and included six scenarios of CO2-EOR in mature reservoirs. The results demonstrate the impact on well completion costs. The scenario with the highest oil production had one additional completion and, for this reason, did not show the best Net Present Value (NPV) result. This work also conducts a sensitivity analysis of parameters and reviews their impacts on NPV. Results indicate a significant impact of barrel price and minimum attractiveness rate on the NPV, while finding that the taxation of excess CO2 was not very significant. Low barrel prices (<$9) proved to be unfeasible with negative NPVs.
FOAM ASSISTED GAS LIFT (FAGL) TECHNIQUE: LABORATORY TESTS, FIELD APPLICATION, AND EVENTUAL EFFECTS ON CRUDE OIL PROCESSING
Authors: Marques L. C. C. , Karnitz Jr O. , Oliveira M. C. K. , Ferreira M. A. G.
Published: October 2024

Even though the foam assisted gas-lift (FAGL) technology is not exactly a technical innovation, curiously, it has attracted the attention of the crude oil industry in recent years. Broadly speaking, the FAGL consists in either boosting the well’s crude oil flow rate while maintaining the same gas injection rate, or, conversely, it refers to maintaining the well´s crude oil production at a reduced gas injection rate. The application of the FAGL technology to a crude oil well is simple, just demanding the dosage of a tailored crude oil foamer surfactant (“crude oil foamer”) to the Gas Lift (GL) stream. Preliminary lab tests and the data recovered from the specialized literature together with the ones derived from the still sparse FAGL field applications have shown promising results. The FAGL´s underlying philosophy, its eventual interference on the topside crude oil processing, and some other pivotal FAGL-related questions are also addressed in this technical contribution.
Menelusuri Pemahaman Patriarki Dalam Tafsir Q.S. An-Nisa:34 dan Impikasinya Terhadap Tren Penurunan Pernikahan di Indonesia
Authors: Gustianda Nana
Published: October 2024

This study explores the understanding of patriarchy in the interpretation of Q.S. An-Nisa:34 and examines its implications for the declining marriage trend in Indonesia. The interpretation of Q.S. An-Nisa:34 is often seen as supporting patriarchal values, which significantly impact social structures and gender perceptions. With social changes, Indonesia has experienced a decline in marriage trends, which may be influenced by more egalitarian religious interpretations. This study aims to understand how the verse is interpreted in society and how this understanding contributes to the declining marriage trend This research uses a qualitative approach with the maudhu'i method and a little touch of hermeneutics. It interprets Q.S an-Nisa':34 by putting forward the views of the mufassir. The findings show that the interpretation of Q.S. An-Nisa:34 is understood as a basis in the household where men are qawwam (leaders or protectors). This means that there is a big task that men must do, namely providing for their wives and children. If the task of earning a living is not done, then the nature of leadership is lost. The misunderstanding of Q.S. An-Nisa:34 contributes to the changing perception of marriage, which in turn affects marriage trends in Indonesia.
Analisis Penerapan Sistem Konsinyasi Menurut Hukum Ekonomi Islam pada Produk Jajanan Basah di Pasar Pagi Bandar Kabupaten Batang
Authors: Ubaidillah Ubaidillah
Published: October 2024

This study aims to determine and analyze the application of the consignment system according to Islamic economic law on wet snack products in the Bandar morning market, and to analyze the role of the principles or basis of Islamic economic law in the marketing strategy of wet snack products in the Bandar morning market. This research uses qualitative research methods, the data used are primary data and secondary data, primary data obtained from interviews with market managers, snack traders and buyers, the analytical tool used is qualitative methods with the type of field research. The results of this study indicate that the practice of consignment contracts for wet snack products in the Bandar morning market in general, the contracts used in Islamic economics have fulfilled the pillars and conditions, because in the practice of consignment contracts, several pillars and conditions have been fulfilled in transactions including Shighat (memorization), Aqid (the person in the contract), Ma'qud alaih (commoditized goods). However, in its application related to Ma'qud alaih there are still a few that do not meet the requirements, the hawker traders have not fully implemented these terms and conditions in conducting transactions, because there are still many hawker traders who ignore the contract and do not record the administration of the consignment contract.
Analisis Metode Pendidikan Islam dalam Al-Qur'an: Kajian QS. Hud Ayat 61-68
Authors: Irfan Rengga , Khuluqi Syafiyatul
Published: October 2024

The aim of this research is to explore the Islamic educational methods contained in Surah Hud, verses 61-68. Current phenomena indicate that there are still many errors in teaching methods, both within and outside of school environments. One notable issue is that teachers often hesitate to administer punishment to students due to concerns about being perceived as engaging in violence. Therefore, this study seeks to revisit appropriate educational methods based on the guidance of the Qur'an. This research is a qualitative library research using content analysis as the analysis method. Focus of this research is on Surah Hud, verses 61-68, which is analyzed based on the interpretations of Tafsir Al-Azhar by Buya Hamka, Tafsir An-Nur by Teungku Hasbi Ash-Shidiqi, and Tafsir Al-Misbah by Quraish Shihab. The findings reveal that there are five Islamic educational methods in Surah Hud, verses 61-68, namely: a) the lecture method, b) the question and answer method, c) the demonstration method, d) the assignment method, and e) the Targhib (reward) and Tarhib (punishment) method. These methods can serve as a model that can be applied in contemporary education. Their relevance remains strong today, although their application may require adjustments and modifications in line with modern developments.
Solusi Al-Qur’an dalam Mengatasi Pengaruh Media Sosial TikTok Terhadap Keagamaan Generasi Muda
Authors: Fikrianoor Ardiyan , Ishaac Muhamad
Published: October 2024

This research aims to determine the influence of TikTok social media on the religion of the younger generation from the perspective of the Koran. This research was conducted using the library research method, which includes analysis of literature such as the Al-Qur'an, hadith, journals, and related books. In the digital era, social media has become an important platform for the younger generation to express themselves and seek information. TikTok, as a popular application, allows users to create short videos with various interesting effects. However, its inappropriate use can have negative impacts, such as reducing valuable time, reducing a culture of shame, and spreading hoax news. This research found that TikTok has a significant effect on the religion of the younger generation, including the potential for antisocial behavior, wasting time, and decreasing Islamic values. To overcome these negative influences, the Qur'an provides important guidance, including commands to socialize well, make the best use of time, and maintain a culture of shame. This article offers a unique perspective on how the younger generation can use social media wisely and still retain their religious values ​​through the teachings of the Koran. Thus, it is hoped that this research can provide practical and theoretical benefits for the younger generation and the general public in overcoming the challenges of using social media in the digital era.
Analisis Historis, Metode Dan Karakteristik Pendidikan Tasawuf Di Ma’had Aly IqnᾹ’ Ath-ThᾹlῙbin Pondok Pesantren Al-Anwar, Sarang, Rembang
Authors: Mahmudi Kholis Ali , Gusmian Islah
Published: October 2024

This research aims to examine: (1) the history of the establishment of Ma'had Aly Iqnā' Ath-Thālibīn Pondok Pesantren Al-Anwar, Sarang, Rembang (2) Taṣawuf education at Ma'had Aly Iqnā' Ath-Thālibīn Pondok Pesantren Al-Anwar, Sarang, Rembang (3) the characteristics of Taṣawuf education at Ma'had Aly Iqnā' Ath-Thālibīn Pondok Pesantren Al-Anwar, Sarang, Rembang. The research approach used in this study is descriptive qualitative. The research setting was conducted at Ma'had Aly Iqnā' Ath-Thālibīn Pondok Pesantren Al-Anwar, Sarang, Rembang. The data collection method uses documentation, interview, and observation methods. For data validity techniques used are source triangulation techniques. While the data analysis technique that researchers obtained, using data collection, data reduction, and data verification. The results of the study conclude The learning method follows the tradition of the salaf pesantren and emphasizes social practice. Its characteristics include the use of the book by Masyayikh PP. Al-Anwar, sanadan kitab, syarh kitab as a final assignment, and the application of Sufism in social life.
Online conversations around digital artefacts
Authors: Thomas Elaine , Barroca Leonor , Donelan Helen , Kear Karen , Jefferis Helen , Rosewell Jon
Published: October 2024

Studio-based learning provides a model that can be adapted for online learning. In conventional teaching settings, studio-based learning follows an apprenticeship model where students work independently or in groups, under the guidance of a tutor, using real-world activities. The ‘Using OpenStudio in STEM learning’ project has been established to evaluate the use of online studio-based learning in the Open University (UK). This paper reports our findings from the first two phases of the project which gathered data from educators who present the modules and also from a survey of students. Educators representing distance learning modules from a range of STEM disciplines including Computing and IT, Design, Engineering and Environmental Technology participated in a workshop to share information about the use of OpenStudio on their modules. A simple model of OpenStudio activities was derived from the workshop to illustrate the process of 'showing and sharing', viewing and reviewing', commenting and critiquing', and 'reviewing and reflecting' involved. Two Computing and IT undergraduate modules were then selected for more detailed analysis, one at level 1 (first year) and another at level 3 (third year). Both quantitative and qualitative data were gathered from samples of students on these modules and analysed. Comparisons between the OpenStudio model, the survey findings and Kolb’s Experiential Learning model (1984) revealed the range of student views and the diversity of students’ experiences of the learning activities, and provided some thought-provoking insights into student behaviour in carrying out the OpenStudio activities.
The data suggest that students enjoy the OpenStudio activities, especially the visual nature of artefacts and the idea that shorter comments may be made, rather than longer more discursive pieces of writing. In addition to learning about their subject area, students are also learning how to give feedback to their peers and how to use the feedback they receive, both of which are important skills. Many students are confident in their own ability and are able to evaluate the feedback they receive. However, some students may lack confidence in their own ability to give feedback on the work of their peers, particularly at level 1. Importantly, there needs to be an opportunity to complete the cycle of the experiential learning model in the activity by allowing students to produce another artefact. The experiential nature of the online studio activity presents an opportunity for students to reflect-in-action as well as reflect on their actions (Schön, 1983).
Problem and Project Based Learning in Hybrid Spaces
Authors: Ryberg Thomas , Davidsen Jacob , Hodgson Vivien
Published: October 2024

There is a need within networked learning to understand and conceptualise the interplay between digital and physical spaces or what we could term hybrid spaces. Therefore, we discuss a recent study of students from two different programmes who are engaged in long-term, group-based problem and project based learning. Based on interviews, workshops and observations of students' actual group practices in open, shared and flexible spaces in Aalborg University (AAU), we identify and discuss how students incorporate networked and digital technologies into their group work and into the study places they create for themselves. We describe how in one of the programmes ‘nomadic' groups of students used different technologies and spaces for ‘placemaking'. We then show how their experience and approach to collaborative work differs to that of the more static or ‘artisan' groups of students in the other programme. In both cases the ways of utilising space, places, tools and activities was an extremely complex interweaving of the digital and physical and of different places and artefacts over time. Thus, we argue 'placemaking' is an important practice or literacy in relation to students' 'doings of networked learning' and one that impacts on the kind and nature of collaboration that takes place.
Designing networked learning with 4Ts
Authors: Pozzi Francesca , Ceregini Andrea , Persico Donatella
Published: October 2024

This paper tackles the issue of how to support the design of effective collaborative activities in networked learning contexts. At the crossover between the ‘learning design' and the ‘networked learning' research sectors, notions such as ‘collaborative techniques', ‘design patterns' or ‘scripts' are often used to describe and/or run online collaborative learning activities. Based on these concepts, technological tools have been implemented that reify these notions and support several phases of the learning design process, including the sharing and reuse of design representations. Despite the differences among tools, most of the them support the representation of learning designs that are already "in the designer's mind", while few technological tools specifically provide guidance and support in the early phase of the design process of collaborative activities, i.e. the conceptualization of the design. Focusing on this gap, this paper proposes a model and, based on it, a game supporting the conceptualization of online collaborative activities for networked learning contexts. Both the model and the game are based on the interplay of four variables, the 4Ts: Task, Teams, Time and Technology, regarded as the key aspects of the decisions to be made. The model suggests that, to design the online activity, the teacher/designer will need to "juggle" around with these four variables and their reciprocal relationships in a cyclic, iterative process, regardless of whether she wants to start the design from scratch or to reuse an already existing collaborative. Implemented with the aim of scaffolding such iterative process and supporting a group of teachers in the decision taking phases, the game consists of a board, representing the Time component, and of 5 decks of cards (respectively for the Task, Team, Technology, Technique and the Jokers). Each deck contains cards describing instances of Task, Team, Technology or Technique, while the Joker cards are empty and should be filled in by players with new instances. To guide the decisions, each card illustrates the dependencies between that particular instance of T and the others, thus making the decision criteria as explicit as possible and stimulating reflection on how each variable impacts on the others. Both the 4Ts model and the game have been field tested and evaluated by the developers with a group of 48 teachers. The results encourage the development of a digital version of the game, where cards are still tangible objects, and augmented reality techniques are employed to digitize the results of conceptualisation.