bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving environmental indicators of the wheeled tractor diesel engine by using biofuels
Authors: Zakharchuk Victor , Zakharchuk Oleh , Skalyga Mykola , Kuts Nadiia , Yaroschuk Viktor 
Published: May 2024

The object of this study is the process of operation of a diesel engine in a wheeled tractor on methyl ether of spent frying sunflower oil. The task being solved is to improve the environmental performance of a diesel engine in a wheeled tractor during the operation of its diesel on such biodiesel fuel and its mixtures with mineral diesel fuel. The characteristics of the diesel D-243 were determined by the experimental method with the measurement of the toxicity of the waste gases during its operation on the methyl ether of the spent sunflower oil, mineral fuel, and their mixtures. A decrease in the content of soot in diesel exhaust gases and a slight increase in the types of nitrogen oxides was registered. The theoretical method using a mathematical model determined the indicators of a wheeled tractor during its movement with a trailer for the accepted driving cycle and the operation of its diesel on different fuels. To that end, the characteristics of a specific diesel engine were described by polynomial models. The adequacy of the mathematical model of the movement of a tractor with a trailer over a driving cycle was tested. By means of a mathematical model, the total road emissions of harmful substances of a diesel engine were calculated when the tractor is running with a trailer over the accepted driving cycle. Calculations were performed for two types of fuel: mineral diesel fuel and biodiesel fuel. Biofuel consumption increases by almost 10 % compared to diesel fuel. The total emissions of harmful substances are 1.1 times lower in a diesel engine running on biofuel than when using mineral fuel. The results could be used in the operation of technological transport in the industry and agriculture provided there is a sufficient volume of raw materials for the production of biofuel
Agenda 2030: desafios e possibilidades à educação para sustentabilidade, democrática e inclusiva
Authors: Bezerra Eliana Souza , Mendes Élgen , Sígolo Letícia Moreira , Toledo Renata Ferraz de 
Published: May 2024

Eventos climáticos extremos, pandemias, crises e incertezas têm sido recorrentes nesse primeiro quartel do século XXI e têm motivado estudos que alertam para a eminência de as mudanças climáticas tornarem-se irreversíveis. Ao mesmo tempo, metas e objetivos estabelecidos na Agenda 2030, voltadas à construção de um mundo mais justo e sustentável, avançam com dificuldade e, algumas vezes, até retrocedem. Este artigo objetiva reconhecer e analisar desafios e possibilidades da educação para sustentabilidade, democrática e inclusiva, a partir da vivência em um projeto de Inserção Social intitulado "Agenda 2030 e os Objetivos do Desenvolvimento Sustentável (ODS): abordagens e práticas com a comunidade escolar", implementado em uma Escola Técnica Estadual na cidade de São Paulo. Busca ainda analisar possíveis influências de mídias sociais e contribuições da universidade nesse processo. Apoiado em revisão bibliográfica narrativa, pesquisas de memes sobre o tema na internet e na análise das atividades do referido Projeto constatou-se que a educação pode e deve ser uma importante aliada na criação deste senso crítico coletivo de urgência a respeito da realidade atual, especialmente quando propõe refletir e agir de forma inclusiva, democrática e orientada à sustentabilidade, conforme almejado pelo Projeto de Inserção Social aqui brevemente apresentado. Por sua vez, a indiferença de alguns estudantes sobre determinados temas foi coerente com a abordagem predominantemente encontrada nos memes, a qual sugere certa injustiça na responsabilização de danos ambientais. Assim, considera-se como crucial o papel da universidade na qualificação destas reflexões e ações desenvolvidas no contexto escolar, com respeito à diversidade e pluralidade.
Thomas Davis’ “The Sack of Baltimore”: A Literary-Historical Perspective
Authors: Yousef Nisreen T. 
Published: May 2024

This article is an attempt to read Thomas Davis’ poem “The Sack of Baltimore” (1845) from a literary-historical perspective. It explores Davis’ representation of the sack of Baltimore village, West Cork, Ireland as a historical event depicted from a literary angle. A typical nineteenth-century historical Irish ballad, “The Sack of Baltimore” has not only remained at the margins of literary studies, but even where it has received attention, it has mainly been treated as a historical source material on an Algerian piratical raid that has come to be called “the sack of Baltimore”. This paper proposes that we need to reread the Irish poet’s narrative poem with a stronger interest both in its literary composition and historical contexts. Only in this way would it be possible to do justice and draw more sustained attention to this hitherto understudied lyrical narrative poem.
THE SOUTH DOES ALSO EXIST: THE CONTINENTAL DRIFT DEBATE IN THE ACCOUNT OF THE SOUTH-AFRICAN PALEOBOTANIST EDNA PLUMSTEAD
Authors: WALIGORA MARIANA FERRARI 
Published: May 2024

ABSTRACT
This paper analyzes a letter sent by the South African paleobotanist Edna Plumstead in 1982 to the US philosopher of science Henry Frankel, in answer to his questions about her involvement in the early debates on the concept of continental drift. Her response gave a biographical account of her life and explained in what context she first became acquainted with the themes that would become her life's work, and the scientific network of people who influenced her along the way. Beginning with her undergraduate years in the 1920s, Plumstead was aware that continental drift was being discussed in scientific circles in South Africa, earlier than in the northern hemisphere. This was followed by her more direct involvement in paleontological studies on fossils of the seed-plant Glossopteris, her important description of Glossopteris reproductive organs in direct attachment to the leaves, and how the distribution of these fossils contributed to the concept of Gondwanaland and the continental drift theory. These contributions, although extremely relevant to science, were mostly ignored in the Global North.
The Implementation of the Case Method with Blooket Media to Enhance Student Learning Outcomes in Radiochemical Material
Authors: Christianto Heru , Lalang Arvinda Cenorita , Nay Dorthea Maria Woga 
Published: May 2024

Research related to the implementation of learning models to improve the quality of learning continues to be carried out in line with changes in the applicable curriculum. The selection of the right learning model with the help of fun game media is the basis for this research, so that learning becomes more meaningful and not boring. This is a quasi-experimental study using a "nonrandomized pretest-posttest control group design." Before the t-test, a prerequisite test was carried out in the form of a normality test (using the Liliefors test) and a homogeneity test (using the Levene test). In addition to hypothesis testing, this study also calculated the score increase (N-Gain) from the pretest and posttest data. The t count value is 2.88, while the t table value at = 0.05 with dk = 51 is 1.67. The hypothesis is supported because the t count value is greater than the t table value (2.88 > 1.67). In addition to the t count and t table values, the r2 = 0.1403 value was examined. This coefficient value of 14.03% indicates the level of effect of employing the case method with blooket media on increasing student learning outcomes in the Radiochemistry subject.
Determinants of Non-Acceptance of the COVID-19 Vaccine During Pregnancy in Pregnant and Postpartum Women: A Descriptive Cross-Sectional Study
Authors: Dehshiri Maryam , Mansouri Mehrdad , Jarahzadeh Mohammad Hossein , Hatamizadeh Nooshin 
Published: May 2024

Objective: The rate of COVID-19 vaccination hesitation among Iranian pregnant women is around 50%. The objective of the present study was to determine the reasons for the refusal of COVID-19 vaccination among pregnant and postpartum women.
Materials and methods: This descriptive cross-sectional study was performed on 304 pregnant and postpartum women in the comprehensive health centers of Yazd, Iran, between October 2022 and April 2023. Researchers collected the data of unvaccinated women through phone calls using a validated questionnaire. Data was collected using a questionnaire consisting of baseline characteristics and reasons for refusing vaccination. Descriptive statistics were used to analyze the data using SPSS version 22.
Results: The mean age of the pregnant and postpartum women participating in this study was 28.31 ± 6.47 years. The most common reasons for refusing the COVID-19 vaccine included fear of harming the fetus (32.2%), fear of side effects in the mother (25.7%), disbelief in COVID-19 disease and vaccine (13.8%), lack of information about the vaccine (12.8%), and negative opinions of the media and society (12.8%). Less common reasons included husband's disagreement (8.2%), history of COVID-19 infection (6.9%), gynecologists' disagreement (6.3%), history of infertility (5.9%), and underlying disease (3.3%). Astonishingly, among participants who did not inject a booster dose of the vaccine, 76% reported they didn't receive any training and recommendation on booster dose injection from health providers.
Conclusion: Findings highlight that the most common reasons for refusing the COVID-19 vaccine were fear of harming the fetus and fear of side effects in the mother.
METASSÍNTESE: REVISÃO QUALITATIVA ACERCA DA MEDICALIZAÇÃO PSIQUIÁTRICA INFANTOJUVENIL EM SITUAÇÃO DE ACOLHIMENTO
Authors: Costa Rego Martinha , De Camargo Denise 
Published: May 2024

Este artigo apresenta uma revisão qualitativa sistemática sobre a medicalização psiquiátrica com crianças e adolescentes em situação de acolhimento. Faz parte da dissertação de mestrado cujo tema envolve as práticas subjacentes ao processo de medicalização infantojuvenil em casas lares. Empreendemos essa modalidade de pesquisa com o objetivo de buscar referenciais em estudos empíricos que contemplem a medicalização psiquiátrica infanto-juvenil e possam embasar o aprofundamento sobre este fenômeno e seus efeitos para o desenvolvimento e constituição da subjetividade desta população. Realizamos busca no Portal de Periódicos Capes e nos Bancos de Teses e Dissertações da USP e da PUC utilizando os descritores medicalização; medicalization; medicalização da infância; acolhimento; institucionalização; “institutional care”; crianças e adolescente; crianças e jovens; childx and teenagerx; serviços de atendimento à saúde; proteção judicial de crianças e adolescentes; crianças e jovens institucionalizados. Selecionamos três trabalhos que se encaixam em nossa busca, sendo dois nacionais e um de Portugal. Encontramos apenas um trabalho que refere-se à população almejada em nossa pesquisa, ou seja, crianças e adolescentes em situação de acolhimento protetivo. Os demais referem-se a medicalização em contexto educacional e foram incluídos nesta metassíntese por apresentarem estudos primários sobre diferentes percepções diante da medicalização e propostas inovadoras para o manejo das dificuldades escolares em detrimento da medicalização. Todos os trabalhos primários apresentaram dados que confirmam excessos na administração de psicofármacos, bem como trazem alternativas de manejo destas populações visando a garantia de seus direitos de cidadania, socialização, expressão, desenvolvimento e dignidade.
A PERCEPÇÃO DOS ALUNOS DO CURSO DE GRADUAÇÃO EM PSICOLOGIA SOBRE O ENSINO REMOTO EMERGENCIAL EM UMA INSTITUIÇÃO DE ENSINO SUPERIOR PRIVADA
Authors: Gomes Leandro Matheus , Rossi Carraro Patricia 
Published: May 2024

O estudo objetivou compreender a percepção dos alunos do curso de graduação em psicologia sobre o ensino remoto emergencial em uma instituição de ensino superior privado. Realizou-se uma entrevista com 30 alunos, a partir de roteiro de entrevista semiestruturado e na própria instituição. Os dados foram analisados segundo a Análise de Conteúdo. Os resultados revelaram que a maioria adaptou-se a plataforma de ensino adotada pela instituição e alguns, a consideraram complexa. Quanto a metodologia de ensino docente, a maior parte gostou da forma como foi conduzida. Dos dispositivos tecnológicos utilizados e ao acesso a internet, observou-se que a maior parte utilizou o celular e notebook. Referente à conexão, a maioria usou o wi-fi e o 3G. O fato das aulas ficarem gravadas foi fundamental, pois muitas vezes não estavam física e psicologicamente bem. A maioria sentiu falta do contato físico dos colegas de turma e da faculdade. Alguns apontaram que não sentiram falta, pois economizaram com locomoção, alimentação e material. A maioria dos participantes relatou crise de ansiedade, uma minoria síndrome do pânico e somente um teve crise existencial. Metade dos participantes aumentaram o número de sessões de psicoterapia e alguns precisaram consultar com psiquiatra. Quanto aos problemas físicos alguns comentaram sobre cansaço pela ausência de atividades físicas e ganho de peso. Concluiu-se que apesar das restrições impostas pela pandemia da Covid-19, a instituição apontada conseguiu dar continuidade às ações pedagógicas e os alunos procuraram se adaptar às dificuldades encontradas no ensino, bem como superar os problemas psicológicos e físicos.
HABILIDADES METATEXTUAIS: MAPEAMENTO DE PROPOSTAS INTERVENTIVAS PARA ESCOLARES DO ENSINO FUNDAMENTAL
Authors: Dos Santos Abintes Pâmella , Bazan Blanco Marília 
Published: May 2024

A presente pesquisa configura-se como um mapeamento de artigos, dissertações e teses direcionadas à habilidade metatextual, cujo objeto de análise é o texto. O objetivo geral do estudo foi mapear os programas de intervenção metatextual para escolares do Ensino Fundamental I. Como objetivos específicos, buscou-se descrever as propostas interventivas e atividades realizadas, assim como analisar seus possíveis efeitos. A síntese das pesquisas evidencia o uso de histórias em intervenções direcionadas ao desenvolvimento da habilidade metatextual. As pesquisas também mostram a eficiência do apoio de gravuras para o ensino dos elementos que compõem uma história e sua organização sequencial. Por meio deste mapeamento é possível observar a baixa produção científica direcionada à intervenção ou desenvolvimento da habilidade metatextual, mesmo fazendo parte das habilidades metalinguísticas que são indispensáveis para o processo de aquisição e aprimoramento da leitura e da escrita.
Navigating sustainable competitive advantage: social and technological challenges and open innovation in creative economy-based traditional markets
Authors: Hapsari Nurul Retno , Zaki Ahmad , Soewardi Tiara Juniar 
Published: May 2024

Purpose — Innovation and technology introduce businesses to uncertain conditions, necessitating a focus on enhancing competitiveness. This research aims to investigate the impact of social and technological challenges, as well as open innovation, on the sustainable competitive advantage of a creative economy-based traditional market.Method — This study employs a quantitative approach by distributing questionnaires to 100 MSMEs in Yogyakarta traditional markets. The Partial Least Squares-Structural Equation Modeling (PLS-SEM) was utilized to analyze the effects.Result — The results indicate that social and technological challenges contribute to a sustainable competitive advantage. However, open innovation does not significantly influence the enhancement of a sustainable competitive advantage.Practical implications — The study suggests that the government should support MSMEs in addressing technological disruption by offering digital training to expand their market reach.
Investigating How Student Interest and Teacher Competence Shape Science Education
Authors: Tristianti Rosulita , Efendi Nur 
Published: May 2024

This study investigates the relationship between students' learning interest, perceptions of teacher competence, and cognitive learning outcomes in science education. Using a non-experimental quantitative approach with 90 randomly sampled students from a total population of 336, data were collected through questionnaires and analyzed using product moment correlation and multiple correlation. The results highlight significant correlations between students' learning interests, perceptions of teacher competency, and cognitive learning outcomes, emphasizing the importance of considering these factors in designing effective science education methodologies to enhance student engagement and optimize learning outcomes.

Highlight:

Engagement in science correlates with student interest in learning.
Teacher competence impacts science learning outcomes significantly.
Quantitative research informs effective science education methods.

Keyword: Science Education, Student Learning Interest, Teacher Competence, Cognitive Learning Outcomes, Quantitative Research
Calculation a new formula to determine the chlorophyll-a content without extraction by modeling meta analysis data in Arthrospira platensis Gomont
Authors: Tunca Hatice , DİNÇ Tarık , YANIK Huriye , SEVİNDİK Tuğba ONGUN , KESKİN Semra YILMAZER 
Published: May 2024

Abstract

Spectrophotometric methods are frequently used to monitor growth and development in algae cultures of toxicity studies. Chlorophyll-ameasurement is one of the most important parameters determining the growth in cyanobacteria cultures. In determining this parameter, primarily extraction with solvents and daily measurements should be carriedout during the study. The use of this method causes both labor and material consumption. Since the chlorophyll-acontent is related to the doubling time and initial culture concentration, it is possible to measure chlorophyll-aby determining these values by modeling. Mathematical model analysis has gained importance in phycology studies with the development of hardware and software depending on technology. Microbial processes modeling allows us to have information about the growth behavior of microalgae and to obtain effective results in the output of algal culture. For this purpose, the available data were adapted to Gompertz, Logistic, Weibull, Exponential and Richards models in multiple pesticide applications. By means of the regression formula obtained from the doubling time values of OD560 and chlorophyll-a, the chlorophyll-a can be easily determined by OD560 in forward studies.
Mapping Computational Cognitive Profiles of Aging to Dissociable Brain and Sociodemographic Factors
Authors: Marzuki Aleya , Wong Kean Yung , Chan Jee Kei , Na Sze Yie , Thanaraju Arjun , Phon-Amnuaisuk Paveen , Vafa Samira , Jenkins Michael , Chia Yook Chin , Schaefer Alexandre 
Published: May 2024

Abstract

Aging is associated with declines in cognition and brain structural integrity. However, there is equivocality over 1) the specificity of affected domains in different people, 2) the location of associated patterns of brain structural deterioration, and 3) the sociodemographic factors contributing to ‘unhealthy’ cognition. We aimed to identify cognitive profiles displayed by older adults and determine brain and sociodemographic features potentially shaping these profiles. A sample of Southeast-Asian older adults (N = 386) participated in a multi-session study comprising cognitive testing, neuroimaging, and a structured interview. We used computational models to extract latent mechanisms underlying cognitive flexibility and response inhibition. Data-driven methods were used to construct cognitive profiles based on standard performance measures and model parameters. We also investigated grey matter volume and machine-learning derived ‘brain-ages’. A profile associated with poor set-shifting and rigid focusing was associated with widespread grey matter reduction in cognitive control regions. A slow responding profile was associated with advanced brain-age. Both profiles were correlated with poor socioeconomic standing and cognitive reserve. This study furthers understanding of how distinct aging profiles of cognitive impairment uniquely correspond to specific vs. global brain deterioration and the significance of socioeconomic factors in informing cognitive performance in older age.
Evaluation of Branch-Level Green Banking in Bangladesh through Life Cycle Assessment Approach
Authors: Chowdhury Kishwar Jahan , Roy Papon , Ahmed Gias Uddin , Hossain Mohammad Mosharraf 
Published: May 2024

Abstract

Green banking becoming an everyday practice around the globe and similar to developing nations like Bangladesh, this study embarks on an ambition to assess the environmental burden of the banking sector. Leveraging Life Cycle Assessment (LCA), a methodology widely used for environmental footprint assessment delves into the resource utilization, waste generation, and overall environmental emissions of Bangladeshi banking systems. This national inventory will not only compare the environmental performances of urban vs. rural and private vs. public banks but also serve as a crucial stepping stone for future research in sustainable banking practices. Overall, this study aims to help policymakers and financial institutions with substantial insights, guiding them to thrive in their operation in a direction where economic prosperity and environmental sustainability are in harmony. This study follows the ISO guideline to conduct LCA of the banking system in Bangladesh at different branch levels. The total deposit of money per year in million BDT is considered a functional unit and activities within the country are considered. In the assessment, OpenLCA is used for modeling while ReCiPe-2008 is used for assessing the lifecycle impact of the entire process. The study results reveal that Marine ecotoxicity is the primary contributor (1.1 kg 1,4 -DCB) to the overall banking system in Bangladesh, followed by freshwater ecotoxicity (0.81 kg 1,4-DCB) and Human carcinogenic toxicity (0.61 kg 1,4-DCB. However, the Global warming potential is identified as 27.22 kg CO2-eq for every million BDT deposited in an economic year. The hotspot analysis of the study indicates that in most impact categories, electricity production has the most significant environmental footprint. However, computer use and fossil fuel production play a noteworthy role in the categories of human non-carcinogenic toxicity and fossil resource depletion, because of their wide range of materials used in production. The study concludes that public and rural commercial banks poses more loopholes to improve for greener banking practices as public banks and rural branches serve more customers with fewer facilities over a large area.