bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of hydroponic technology and processing variations to enhance food security and prevent stunting
Authors: Yulianti Nani , Hapsari Dhika Prita , Hutami Rosy , Dodi Dodi , Setiadi Trisna , Ismail Depanito , Puspitasari Yuyun , Putra Nirma Ruhil Hadi
Published: February 2025

Hydroponics is a modern plant cultivation system without soil to produce clean, healthy, and fresh vegetables. The availability of fresh, healthy food is a key factor in preventing stunting. This community service activity aims to increase food security and prevent stunting through vegetable cultivation using hydroponic technology. Methods used include socialization, training, practice, mentoring, monitoring, and evaluation of hydroponic technology and its processing. Results show that partners experienced increased empowerment, with knowledge of hydroponics and its processing improving by >30 percent. Partner skills in producing hydroponic vegetable products significantly improved, transitioning from no prior experience to being skilled at hydroponic cultivation, with increased production. This activity also yielded various vegetables (water spinach, spinach, bok choy, and Chinese kale) grown using hydroponic systems. Additionally, DFT hydroponic system facilities with a capacity of 200 plants per installation (4 installations) and processing tools were provided, enabling the community to access fresh, nutritious food and support stunting prevention.
Stove tiles as a source of information about fables in Russia of the 18th century
Authors:   Lomonosov Moscow State University, Kuznetsova Olga A.
Published: February 2025

The article presents the result of a comprehensive research of the tiles from different museum collections and recent archaeological finds. More than 30 tiles and fragments, that could have a connection with Russian editions of Aesop’s fables, have been discovered. The forms of dissemination of information about fables in Russia are considered. The links between emblem and fable are traced. A tile is a complex combination of visual and verbal components, sometimes it looks like an emblem. Artisans who used fable patterns (based on engravings) often gave the tile not a narrative, but an enigmatic form.
Reconstruction of the 17th century tile firing process. Based on excavations in the New Jerusalem monastery
Authors:   Institute of Archaeology of the Russian Academy of Sciences, Glazunova Olga N. , Ryzhenok Vasily A.
Published: February 2025

An experiment to recreate the process of firing tiles of the XVII century was carried out within the framework of the restoration festival „Eagle – the tsar’s bird“ (2023; a joint project of IA RAS and the museum „Town-Island Sviyazhsk“). The reconstruction was based on numerous installations for ceramic production of the XVII– XVIII centuries, discovered by the expedition of the Institute of Archaeology of the Russian Academy of Sciences in the Resurrection New Jerusalem Monastery. A direct example was one of the well-preserved furnaces, the dimensions of which (and even the dimensions of the bricks from which it is made) were repeated during reconstruction. Having supplemented the archaeological data with ethnographic materials, the authors put forward a number of assumptions about the technological features of the tile production process, complementing the design of the kiln. In the recreated kiln, tiles formed for this purpose were wood-fired, and the stages of the process were recorded and technical and technological features were traced in practice. The leading role of the master ceramist in the process was also revealed.
Utopianism and Anti‐Utopianism in Russian Postmodern Literature
Authors: Kovalenko Alexandr , Hu Jiarui
Published: February 2025

The monograph proposes a concept of dystopia in modern Russian literature, which implies a dynamic co/contrast of elements of the author's utopian and antiutopian thinking. Just as a novel in the genre of pure utopia is impossible, so is a dystopia without its “counterweight” - a utopia. Therefore, it would be more accurate to speak of utopian or dystopian thinking embodied in the novel, and to label the work itself as a dystopia. In dystopia, utopianism or dystopianism mutually define each other antinomically. The postmodernist looseness and freedom of 1990-2000 fermented dystopian thinking, gave grounds for significantly expanding the experimental field. In the works of V. Pelevin, T. Tolstaya, V. Sorokin, various variants of dystopias are found, the appearance of which is due to both an individual creative manner and the desire for deconstruction of traditional foundations and canons common to all postmodernists.
Potential Habitats of Siamese Crocodiles and False Gharials in East Kalimantan for Conflict Resolution
Authors: Larasati Firda , Setiawan Yudi , Kusrini Mirza Dikari
Published: February 2025

Concerns in crocodiles sustainability have long been overlooked, due to humans fear of its ferocity and unresolved human-crocodile conflicts. The siamese crocodile (Crocodylus siamensis) and false gharial (Tomistoma schlegelii) are considered threatened by the IUCN red list because of their limited range and declining populations. In this study we developed habitat suitability model for both species and overlaid with anthropogenic factors to mitigate conflict between crocodiles and human in Mesangat-Suwi Wetland, East Kalimantan, Indonesia. We collected species presence from 2018–2023, measured environmental variables, interviewed 100 respondents, and mapped all information with Maximum Enthropy program (MaxEnt). Results showed that different factors influenced the habitat distribution for each species. Specifically, distance from swamps was affected the most for both crocodiles. Our model found that the potential habitat was much smaller than the non-potential ones due to humans’ intrusion. Much of the Mesangat-Suwi area was covered in high-conflict zones between humans and crocodiles, endangering both species even more. Hence, serious actions were urgently needed to resolve the conflict, either by prevention and mitigation actions, to ensure human-crocodile coexistence in East Kalimantan.
Eksplorasi Etnomatematika Dalam Arsitektur Istana Negeri Siak Asserayah El Hasyimiah Riau
Authors: Pratiwi Yolanda , Kusno Kusno
Published: February 2025

Matematika mempunyai peran penentu atau pivotal pada kehidupan sehari-hari, namun pengajaran matematika sering kali kurang mengaitkan konsep-konsep kontekstual seperti budaya lokal. Istana Negeri Siak Sri Indrapura atau disebut juga Istana Asserayah El Hasyimiah, Riau, adalah warisan budaya penting dari Kerajaan Siak yang dibangun pada abad ke-18. Istana ini mencerminkan integrasi budaya Melayu, Arab, dan Eropa. Banyak elemen geometris yang relevan dalam studi matematika namun belum dikaji secara mendalam. Riset berikut memakai pendekatan kualitatif dan metode etnografi, yang melibatkan wawancara dengan petugas di istana, serta penghimpunan data lewat pengamatan, interview dan dokumentasi. Teknik analisis data yang dipakai adalah dengan reduksi data, penyajian data, dan penarikan kesimpulan/ verifikasi serta validitas dan reliabilitas data diuji melalui triangulasi.  Ruang lingkup penelitian mencakup analisis terhadap sembilan objek yang ada pada arsitektur bangunan istana. Hasil nya menunjukkan bahwa arsitektur istana Siak mengandung berbagai konsep matematika geometris seperti persegi panjang pada bangunan luar Istana, Segitiga dan Belah Ketupat pada objek jendela Istana, Lingkaran pada dinding luar Istana, Balok pada bangunan Istana, Tabung pada tiang, Kerucut pada bagian puncak tiang Istana serta Trapesium pada ukiran pintu masuk Istana Siak. Penelitian ini diharapkan mampu berkontribusi pada pengembangan etnomatematika di Indonesia serta upaya pelestarian warisan budaya yang kaya akan nilai-nilai lokal.
Penerapan Teori Konstruktivisme dalam Pembelajaran Pendidikan Pancasila di Kelas IV SDN 18 Dodu
Authors: Fathurrahman Fathurrahman , Puspita Ryan Dwi
Published: February 2025

Penelitian ini bertujuan untuk menganalisis penerapan teori konstruktivisme dalam pembelajaran Pendidikan Pancasila di kelas IV SDN 18 Dodu. Penelitian kualitatif ini menggunakan instrumen berupa lembar observasi, dokumentasi, dan wawancara untuk mengumpulkan data. Hasil penelitian menunjukkan bahwa guru telah menerapkan prinsip-prinsip konstruktivisme dalam proses pembelajaran, seperti memberikan kesempatan kepada siswa untuk membangun pengetahuan sendiri melalui pengalaman, interaksi, dan refleksi. Penggunaan model pembelajaran berbasis masalah (PBL) dan pendekatan culturally responsive teaching juga mendukung terwujudnya pembelajaran yang berpusat pada siswa. Siswa aktif terlibat dalam kegiatan belajar, berkolaborasi dengan teman sekelompok, dan menunjukkan kemampuan berpikir kritis dalam memecahkan masalah.
Teaching Style of Christian Religious Educators at SMA Negeri Palangka Raya
Authors: Saputra Robi , Ginting Matius Timan Herdi , Pongoh Fernando Dorothius
Published: February 2025

This research focuses on analyzing the teaching style of Christian Religious Education (PAK) teachers at SMA Negeri Palangka Raya to understand its influence on students' interest and motivation to learn. Using a qualitative approach, data were collected through interviews with one PAK teacher and twenty Grade XI students from May to September 2024. The results showed that PAK teachers have implemented technological, personalized, and interactional teaching styles with indicators in the form of learning materials, material delivery processes, and student and teacher roles. However, the classical teaching style was not fully implemented because it is not based on students' interests. In addition, it was found that variations in teaching aspects such as variations in voice, contact, movement, and interaction can increase students' motivation to learn. This study recommends that schools and teachers continue to improve the effectiveness of teaching styles by considering students' needs and characters.
SIMULAÇÃO DE SOLDA POR RESISTÊNCIA EM AÇOS DUAL PHASE
Authors: Andrade Rafael Moreira , Cavalcante Filho Fernando Eduardo , Magalhães Victor Augusto Nascimento , Araújo Douglas Bezerra de , Júnio Mário Martins de Oliveira , Vilarinho Louriel Oliveira
Published: February 2025

A soldagem por resistência é um processo fundamental na indústria, especialmente na fabricação de automóveis, graças à sua velocidade, eficiência e capacidade de unir chapas metálicas sem a necessidade de materiais adicionais. No entanto, a seleção correta do processo e dos parâmetros de soldagem é crucial para garantir juntas de alta qualidade e confiabilidade, principalmente ao lidar com aços avançados de alta resistência (AHSS), onde está incluído o aço Dual Phase (DP). A complexa microestrutura desses materiais apresenta desafios únicos durante o processo de soldagem. Neste estudo, a modelagem por elementos finitos (MEF) foi empregada para investigar o comportamento da soldagem por resistência nos aços DP. A simulação computacional permitiu a variação dos parâmetros do processo, possibilitando a análise do impacto dos efeitos termoelétricos. Ao comparar a largura da zona fundida obtida numericamente com os resultados experimentais, foi possível observar a influência dos principais parâmetros na soldagem. Essa abordagem permite prever o comportamento durante o processo, assim explorando novas configurações, contribuindo para a produção de juntas soldadas com qualidade e confiabilidade.
EMPREGO DE ALGORITMOS GENÉTICOS NO DIMENSIONAMENTO DE MANCAIS MAGNETICOS ATIVOS
Authors: Iasbeck Arthur Henrique , Cavallini Junior Aldemir Aparecido
Published: February 2025

O presente trabalho tem como principal objetivo o emprego dos Algoritmos Genéticos (AGs) no dimensionamento de um Mancal Magnético Ativo (MMA). Dada a complexidade associada a esse tipo de dimensionamento, é comum que o mesmo seja reformulado como um problema de otimização. Com o intuito de solucionar o problema em questão, garantindo a minimização do volume final do mancal, foi desenvolvido o pacote Lumos. Baseado na linguagem de programação Python, o Lumos possibilita a implementação de operadores genéticos específicos para a manipulação direta de variáveis de otimização reais (de ponto flutuante), como a recombinação aritmética e a mutação não uniforme Gaussiana, conferindo maior flexibilidade e eficiência ao processo de otimização. A eficácia do Lumos é demonstrada a partir da comparação entre os resultados obtidos por meio de seu emprego e aqueles reportados na literatura. Tal comparação evidencia a capacidade do pacote em encontrar soluções que minimizam significativamente o volume do MMA em relação a outras abordagens.
IMPLEMENTAÇÃO COMPUTACIONAL DO MÉTODO DO BALANCEAMENTO HARMÔNICO PARA ANÁLISE DE ROTORES DESBALANCEADOS
Authors: Souza Emanuela Carneiro Araújo , Cunha Bárbara Nara Teixeira , Cavallini Jr Aldemir Aparecido
Published: February 2025

O objetivo do presente trabalho consiste na aplicação computacional do método do balanceamento harmônico, empregado na obtenção de soluções periódicas de equações não-lineares, para obtenção de respostas em vibração de um rotor sujeito a desbalanceamento. A resposta retornada pelo método foi comparada com a resposta encontrada aplicando-se o integrador numérico de Newmark. Nesse contexto, foi possível estabelecer a confiabilidade dessa metodologia.
TECNOLOGIAS UTILIZADAS PARA O TRATAMENTO DA ESCOLIOSE IDIOPÁTICA DO ADOLESCENTE (EIA)
Authors: Cunha Felipe Fernandes , Gonçalves Rogério Sales , Gasparini Andréa Licre Pessina
Published: February 2025

Este trabalho apresenta uma revisão sobre a escoliose e tecnologias utilizadas para serem aplicados na fisioterapia/reabilitação desta. A escoliose é um desvio tridimensional da coluna com rotação da vértebra, progressivo, que afeta entre 2 e 3% da população mundial. A coluna vertebral apresenta curvas fisiológicas alinhadas. Porém, para a escoliose, a coluna desenvolve curvas irregulares deslocadas para um dos lados do alinhamento principal, com diferentes graus e tipos, podendo gerar problemas musculoesqueléticos, respiratórios, além de um expressivo transtorno estético e, por vezes, dor não incapacitante. A escoliose pode ser congênita, ou seja, o indivíduo já nasce com ela, neuromuscular, quando surge em decorrência de problemas neurológicos ou musculares, e idiopática com características e prognósticos diferentes, e etiologia não identificada. A gravidade e o tratamento são dependentes da precocidade do diagnóstico, sobretudo na pré-adolescência/adolescência para garantir melhores chances de reabilitação. O tratamento conservador é a primeira opção, nos casos idiopáticos, que representam a maioria dos casos de escoliose e para tal são utilizados exercícios específicos, que devem ser realizados com assistência de um fisioterapeuta, com o objetivo de retardar a progressão da curva, reorganizar o desalinhamento muscular e estético, e aliviar o desconforto do paciente, melhorando a funcionalidade, e qualidade de vida destes. Destaca-se a grande incidência da escoliose em adolescentes do sexo feminino, que ficam desmotivadas e entediadas com os exercícios fisioterapêuticos tradicionais; assim, o uso de jogos sérios pode auxiliar como ferramenta para motivar e intensificar a prática destes, incluindo os cuidados em casa, engajando as adolescentes no processo diário de recuperação até o final do crescimento ósseo. Assim, este trabalho tem como objetivo o estudo dos principais tratamentos e equipamentos utilizados no tratamento específico da escoliose.
APLICAÇÃO DE TÉCNICA DE INTELIGÊNCIA ARTIFICIAL NA CAPTURA DE DADOS DE MÁQUINAS PARA ARMAZENAMENTO DE DADOS DE ANORMALIDADES EM SERVIDORES
Authors: Miranda João Gabriel Oliveira de , Cunha Neto Pedro Carlos da , Duarte Marcus Antonio Viana , Cavallini Junior Aldemir Aparecido
Published: February 2025

O presente estudo propõe a aplicação de técnicas avançadas de inteligência artificial na captura de dados de máquinas para otimizar a detecção de anomalias, com ênfase na compactação de dados. O objetivo é tornar o processo de coleta mais eficiente e eficaz, reduzindo a necessidade de armazenamento em servidores e garantindo a rápida identificação de falhas, aumentando a confiabilidade e segurança dos sistemas dinâmicos.
MODELAGEM MULTIFÍSICA DE UMA UNIDADE GERADORA HIDROELÉTRICA
Authors: Sicchieri Leonardo Campanine , Stival Leandro José Lemes , Figueiredo Paulo Costa Porto de , Cavallini Jr Aldemir Aparecido , Rocha Gabriel Mendonça , Sfalsin Fabrício Nascimento , Steffen Jr Valder , Assumpção Ricardo Lourencini
Published: February 2025

Este trabalho apresenta o desenvolvimento de um modelo multifísico para simular o comportamento dinâmico da Unidade Hidroelétrica de Foz do Chapecó. Utilizando o método dos elementos finitos, o modelo integra as forças hidrodinâmicas dos mancais, as forças eletromagnéticas do gerador e as forças hidráulicas que atuam na turbina. As simulações numéricas revelam que o comportamento das órbitas calculadas pelo modelo se aproxima das medições reais realizadas por meio de proxímetros na unidade geradora.
ESTRUTURA PARA REABILITAÇÃO DO TORNOZELO HUMANO PARA INDÚSTRIA MÉDICA BRASILEIRA
Authors: II Ricardo Halla , Gonçalves Rogério Sales
Published: February 2025

O tornozelo é uma junta fundamental para as atividades diárias do ser humano. Esta é responsável por absorver colisões provenientes da locomoção, adaptar-se à diferentes superfícies, sustentar o peso do corpo e desenvolver forças essenciais na movimentação. O acidente vascular cerebral, algumas doenças de nascença e torções são algumas das causas que prejudicam a capacidade de movimentação do tornozelo. Indivíduos que sofreram com essas condições e desejam recuperar o funcionamento dessa junta, recorrem à fisioterapia. No entanto, existem algumas dificuldades e problemas associados a esse tratamento, como a fadiga do fisioterapeuta, a falta de um método objetivo para analisar o progresso do paciente e a evasão por parte dos pacientes devido à natureza tediosa do tratamento. Com isso, o uso de equipamentos robóticos nesta área vem como uma alternativa promissora. O objetivo deste trabalho é apresentar uma estrutura para reabilitação dos movimentos do tornozelo. A partir de uma pesquisa bibliográfica sobre a cinesiologia e robôs para reabilitação do tornozelo, será realizado o projeto e controle do protótipo robótico proposto neste trabalho. O protótipo em desenvolvimento é capaz de realizar os movimentos do tornozelo humano mediante transmissão realizada por um mecanismo de cadeia aberta acionado por um motor.
ASPECTOS OPERACIONAIS DA IMPLANTAÇÃO DE SISTEMAS DE MONITORAMENTO BASEADO EM IMPEDÂNCIA ELETROMECÂNICA EM SILOS METÁLICOS
Authors: Ruas Simone Rodrigues Campos , Finzi Neto Roberto Mendes , Pereira Paulo Elias Carneiro
Published: February 2025

A realização de experimentos em laboratório está sob condições que normalmente não correspondem às condições reais de operação de uma estrutura ou equipamento. Entretanto, a execução de atividades laboratoriais antes da aplicação em condições reais pode prover informações importantes para o planejamento de um experimento in loco. Neste sentido, foi realizado o monitoramento, em escala laboratorial, de uma amostra de coluna-chapa corrugada de um silo metálico por meio do método de impedância eletromecânica. A partir do experimento realizado em condições controladas, foi possível levantar informações acerca do procedimento experimental em uma situação de monitoramento em um silo. Os aspectos avaliados foram: Colagem das pastilhas piezoelétricas, soldagem dos fios, instalação do sistema de coleta das assinaturas de impedância e questões de ergonomia e segurança durante a implantação do sistema e o monitoramento. Assim, as sugestões de projeto apontadas buscam, desta forma, garantir o adequado funcionamento do sistema de monitoramento estrutural pelo Método da Impedância Eletromecânica especificamente para operações em silos.
SIMULAÇÃO E OTIMIZAÇÃO DE UM MOTOR LINEAR ALIMENTADO COM GÁS DE SÍNTESE
Authors: Santos Evandro Evangelista , Nunes Jônatas de Oliveira , Santos Marcelo Braga dos , Carvalho Solidônio Rodrigues de
Published: February 2025

O objetivo deste artigo é estudar um motor linear 2-tempos, originalmente projetado utilizando equações empíricas para motores convencionais, no software Ansys Forte. Este estudo investiga sete configurações distintas do motor linear, obtidas variando-se configurações de admissão e tempo de ignição. Os casos 1, 2, 3 e 4 utilizam admissão pelas janelas, nestes casos o efeito do avanço do tempo de ignição foi estudado. Testaram-se pontos de ignição com 40, 20 e 10 graus de avanço em relação ao ponto morto superior, além do caso sem avanço (isto é, a ignição se dá exatamente no ponto morto superior). Por outro lado, casos 5, 6 e 7 correspondem a uma configuração onde a admissão de mistura ar-combustível é controlada por válvulas. Em cada um desses casos, um perfil de deslocamento de válvula distinto foi utilizado e as diferenças resultantes do uso de cada perfil foi analisada. O tempo de ignição se manteve o mesmo para estes últimos casos, 15º graus antes do ponto morto superior. Introduzir a mistura ar-combustível através das válvulas ao invés das janelas aumentou a eficiência térmica do motor linear e eliminou o fluxo reverso através das janelas, mas reduziu o trabalho indicado bruto por ciclo devido a menor quantidade de mistura adentrando o cilindro.
AVALIAÇÃO DA INFLUÊNCIA DA TRANSIÇÃO NA CAMADA LIMITE NA PERFORMANCE DE TURBINAS HIDROCINÉTICAS UTILIZANDO BEM
Authors: Corrêa Rafaela Gomide , Souza Francisco José de
Published: February 2025

Nos últimos anos, com o aumento do desenvolvimento industrial e crescimento populacional, o consumo de energia vem aumentando e muitas fontes de energia que fazem parte da matriz energética mundial, como os combustíveis fósseis, são responsáveis pelas mudanças climáticas. Diante dos prejuízos ambientais causados pelas fontes não renováveis, a busca por fontes de energia renováveis aumentou de forma a suprir a demanda crescente de energia e reduzir as fontes não renováveis. As turbinas hidrocinéticas se apresentam como uma opção de fonte renovável de energia. Para garantir a viabilidade econômica e eficiência de tais equipamentos, este estudo apresenta uma análise do impacto da transição turbulenta da camada limite na performance de uma turbina hidrocinética horizontal com 3 pás utilizando a teoria BEM(Blade Element Momentum). Inicialmente, o BEM é utilizado com o número de Reynolds baseado na corda calculado em 80% da envergadura da pá sendo utilizado para o cálculo da potência e tração em todas as seções da pá. Posteriormente, o método é utilizado com o número de Reynolds sendo calculado para cada seção da pá. Então, os resultados obtidos pelos dois caminhos são comparados com resultados experimentais da literatura, mostrando que a utilização do número de Reynolds local melhora os resultados de coeficiente de tração e potência.
ANÁLISE DA PERMEABILIDADE AO GÁS HIDROGÊNIO DE RECIPIENTES PARA AMOSTRAS LABORATORIAIS
Authors: Carreira Samuel Lopes , Lima Euclides Antônio Pereira de , Carvalho Solidônio Rodrigues de , Borges Valério Luiz
Published: February 2025

Devido ao fato de serem muito leves e pequenas, moléculas de hidrogênio podem facilmente penetrar materiais, gerando desafios no que diz respeito ao armazenamento desse gás. O objetivo deste estudo é analisar a permeabilidade ao hidrogênio do bag comercial de fluoreto de polivinila (PVF), além de desenvolver e testar a permeabilidade ao hidrogênio de um recipiente de policloreto de vinila (PVC). Para isso, foi utilizada a cromatografia gasosa, além da Equação de Clapeyron para determinar as concentrações de cada gás de uma mistura de H2 + CH4 + CO ao longo de vários dias. Foi constatado que o bag comercial de PVF não é uma boa opção para o armazenamento de gases que contêm alta concentração de H2, visto que ele é altamente permeável, de modo que a amostra perdeu suas características iniciais rapidamente. No entanto, o recipiente de PVC desenvolvido no laboratório provou-se uma alternativa viável, pois foi capaz de manter praticamente constante, por vinte dias, as concentrações dos gases da mistura citada anteriormente. Tal resultado oferece uma aplicação prática, no sentido de facilitar o trabalho laboratorial na questão do armazenamento de amostras que contêm gás hidrogênio.
NORMAS E DESAFIOS DO PROCESSO DE SIMULAÇÃO DE UMA PRÓTESE TRANSTIBIAL: ISO 10328:2016
Authors: Santos Gabriel Martins Gomes dos , Abrão Júlia Souza , Fiocchi Arthur Alves
Published: February 2025

Uma das referências mais importantes para a realização de testes para próteses de membros inferiores é a norma internacional ISO 10328:2016: Prosthetics — Structural testing of lower- limb prostheses —Requirements and test methods, que fornece informações e exigências sobre os requisitos e métodos para a realização de ensaios estruturais em próteses de membros inferiores. A pesquisa buscou detalhar o procedimento visando preparar um modelo de pé protético para uma análise estática de elementos finitos, aplicando às interações solicitadas na norma específica em cima de um esboço de um pé protético. Como resultados analisados, a norma ISO carece de um maior detalhamento quando visa modelos protéticos com uma geometria diferente do convencional. Ressalta-se a falta de especificações quando se trata do público infantil e como adequar as exigências a um modelo com escala reduzida. Como proposta para futuros trabalhos é indicado um maior refinamento projetual e realizar simulações com materiais compósitos, sendo a pretensão futura da pesquisa em materiais compósitos com fibra contínua.
Plan Didáctico para Fomentar la Conciencia Ambiental en una Comunidad Educativa Monte Sinaí, Guayaquil 2025
Authors: Plua Pincay María Santa
Published: February 2025

El deterioro ambiental y la limitada formación en valores ecológicos fundamentan la necesidad de fortalecer la conciencia ambiental en comunidades educativas. Este estudio tuvo como objetivo fomentar la cultura y conciencia ambiental en la comunidad educativa Monte Sinaí mediante la integración de un enfoque ético para formar ciudadanos responsables con el medio ambiente. Se implementó una metodología cuantitativa con diseño preexperimental, aplicando pretest y postest a 45 estudiantes de primero y segundo año de bachillerato. El plan didáctico incluyó estrategias de aprendizaje basado en proyectos, aprendizaje colaborativo, experiencial y digital, desarrollando actividades como reciclaje, jardines escolares y campañas ambientales. Los resultados evidenciaron una transformación significativa en la conciencia ambiental: el nivel alto incrementó del 5% al 91% en el postest, con mejoras notables en las dimensiones cognitiva (82%), afectiva (82%), conativa (93%) y activa (93%). Se concluye que la implementación del plan didáctico logró fortalecer efectivamente la conciencia ambiental, estableciendo un precedente para futuras iniciativas educativas ambientales.
Analisis Crowdfunding Syariah Berdasarkan Prinsip Syariah Compliance Serta Implementasinya Dalam Produk Perbankan Syariah (Studi Kasus Bank Muamalat)
Authors: Lestari Aprilia
Published: February 2025

This research aims to analyze the application of sharia crowdfunding in the context of sharia compliance principles and its implementation in sharia banking products with a case study at Bank Muamalat. Sharia crowdfunding, as an alternative method of funding in accordance with sharia principles, offers the opportunity to accumulate various projects or businesses while still complying with the prohibitions on usury, gharar and maisir. This research discusses the application of sharia principles in sharia crowdfunding managed by Bank Muamalat, as well as how to integrate and implement this product in their sharia banking portfolio. The research methodology uses a qualitative approach with data analysis from internal bank reports, interviews with related parties, and literature studies on sharia principles and crowdfunding practices. The research results show that although sharia crowdfunding provides an innovative alternative. The main problems identified include late payments, defaults on projects, and difficulties in maintaining strict sharia compliance. This research recommends improvements in sharia monitoring mechanisms, sharpening operational guidelines, and training for sharia crowdfunding managers to ensure better and more effective products in meeting customer needs and sharia objectives.
EVALUATION OF BLOCKCHAIN IMPLEMENTATION EFFECTIVENESS
Authors: Diakiv Andrii
Published: February 2025

This study focuses on the effectiveness of blockchain technology implementation. Blockchain technology is widely regarded as transformative due to its potential to enhance transparency, security, and operational efficiency. This has led to the widespread adoption of blockchain technology across various companies and industries. However, an increasing number of companies are facing challenges in developing qualitative and effective approaches to evaluating the efficiency of implementing this technology. Therefore, it is necessary to develop specialized approaches to assess the effectiveness of blockchain technology implementation. The research subject encompasses the approaches to evaluating the effectiveness of blockchain technology implementation, such as Return on Investment (ROI), Net Present Value (NPV), and Total Cost of Ownership (TCO). By examining case studies and real-world implementations, the study evaluates the application of traditional economic metrics, such as ROI and TCO, and expands the evaluation framework to include intangible benefits like transparency and customer trust. The study also addresses challenges such as scalability, privacy, and legislative impacts, offering solutions based on MCDA and a multi-dimensional assessment approach. The integration of these methods allows for a holistic evaluation of blockchain’s effectiveness. The primary aim of this study is to identify robust evaluation tools that organizations can utilize to determine the feasibility and benefits of blockchain adoption. By bridging gaps in existing assessment models, the research provides a comprehensive framework to streamline decision-making processes. The key findings demonstrate that while ROI remains a critical metric, it must be complemented by broader economic and non-economic indicators to achieve a thorough evaluation. The strategic alignment of blockchain technology with organizational goals is essential for maximizing its benefits. The research concludes that adopting a flexible and standardized evaluation methodology is vital for accurately assessing blockchain technology’s impact. This includes integrating financial, organizational, and technological indicators into a unified framework. Future research is recommended to explore industry-specific metrics and the inclusion of qualitative impacts such as transparency, trust, and customer satisfaction. The study highlights that blockchain’s effectiveness depends on addressing technical, operational, and external challenges while leveraging its transformative potential to drive innovation and efficiency. In conclusion, this research demonstrates that a holistic evaluation framework with integrating quantitative financial metrics with qualitative factors such as transparency, trust, and regulatory considerations is essential for accurately assessing blockchain implementation effectiveness and guiding strategic decision-making.
RELAIBILITY ASSESSMENT OF THE SOIL-WATER-RETENTION FOR UNSATURATED SAND SOILS
Authors: Shakir Mohammed , Abrahim Mustafa , Saleh Salah
Published: February 2025

In this investigation, the soil-water-retention is described in the soil-water-characteristics-curve (SWCC). SWCC contains the data required to explain the unsaturated soils' mechanical behavior.  The reliable findings of unsaturated sand soil tests and the impact of initial density on the hydraulic properties under various matric suction and net normal stresses are examined. The tests are carried out on a sample of soil from the northern region of Al-Najaf city, Iraq. The sample of soil has been disturbed and remolded in the cell of Oedometer device. A modified high-air-entry-disc-based Oedometer is used with accessories to control the air and water pressures to achieve the specific matric suction in the unsaturated test. Two sets of tested specimens are prepared, first, at 90% and second at 95% of the maximum dry unit weight from the standard Proctor experiment. Each set is performed for different matric suction under 200 and 400 kPa net normal stress. (SWCC) The soil water retention curve is affected by the application of net normal stress and initial density. There is a decrease in water volume change with wetting progress in unsaturated soil tests due to an increase in soil density.
Artificial Neural Network (ANN) based Proportional Integral Derivative (PID) for Arm Rehabilitation Device
Authors: Jeaeb Salam , Gaber Rajaa , Saad Salih Rasha , Makki Jiaad Suaad
Published: February 2025

The current work was developed under the title of Artificial Neural Network (ANN) Proportional Integral Derivative (PID) for the arm rehabilitation device and included building and designing the simulation model and simulation results for the arm rehabilitation device. A set of tests were proposed to include firstly testing a system that represents the state of the open arm rehabilitation device and secondly It represents the closed arm rehabilitation device, third represents the closed-loop arm rehabilitation device with PID control device, fourth represents the arm rehabilitation device using ANN, and finally the closed-loop arm rehabilitation device can be used with a comparison between PIDC and ANN. To conduct all the proposed test cases, a program can be used MATLAB, which can help simulate a device that represents an attempt to regain movement in the arm, which is called rehabilitation. It can be noted that the target group is some people who suffer from stroke. By representing the system in the proposed simulation model, its effectiveness can be verified. It is possible to conduct tests aimed at improving performance by working on developing the model by adopting the appropriate design for the characteristics that match the required operational behavior of the system with all conditions that suit different situations. The test cases demonstrated through the simulation results the possibility of identifying the system behavior for the proposed cases. The difference between the system behavior for all these cases was also identified. In addition to the possibility of improving the performance of the movement recovery device to rehabilitate the injured arm through the system’s performance in the presence of an expert neural network controller, it is better than the traditional controller.
Repairing of continuous one-way reinforced concrete slabs by CFRP composites
Authors: Aljebory Saif aldeen , Kamonna Hayder H.
Published: February 2025

This paper presents an experimental investigation of the performance of two-span reinforced concrete slabs repaired by CFRP composites against flexural loads. Thirteen continuous reinforced concrete (RC) one-way-slabs were cast, with dimensions of 2400 mm length, 500 mm width, and 100 mm thick. The first specimen had no strengthening at all and was considered a reference slab (Control). The rest of the slabs were repaired using different configurations of external bonding CFRP sheets and NSM bars. Before the repairing process, the slabs were subjected to 40% and 65% of the control slab ultimate load. The test was done under two-line loads. Moreover, the effect of different lengths, spacing, repairing techniques, and damage ratios were studied in this work. The finding shows that the repairing methods were effective in improving the ultimate load capacity ranges between 42% to 70% and reducing the deflection by about 11% to 25%.
CHARACTERISATION OF CEILING BOARDS PRODUCED FROM PLASTER OF PARIS REINFORCED WITH BANANA FIBRE AND COCONUT SHELL
Authors: Obidiegwu Eugenia , BALOGUN Munirat Ayomide , AJAYI Paul Adedeji
Published: February 2025

The need for environmentally friendly and affordable building materials has sparked researches for materials to use in the construction industry. This paper therefore, studied the characterization of ceiling boards manufactured from plaster of Paris (POP) reinforced with banana fibres (BF) and coconut shell (CS) particulates. The samples were produced by adding different ratios of BF and CS to the POP matrix. To evaluate the effectiveness of the samples, several tests, were conducted. The results demonstrated that the addition of reinforcements improved the properties. The sample with a mixture of POP, BF, and CS demonstrated superior properties with the lowest water absorption (2.77%), high compressive strength (7.74 MPa), least thermal conductivity (0.2157 kW/mK) and hardness value of (23.2 HVN), these are within the standard range. The Scanning Electron Microscopy (SEM) analysis confirmed the results obtained. This study established the possibility of using local accessible materials to produce high quality ceiling boards.
Tools and techniques for real-time data processing: A review
Authors: Sangeeta Rani
Published: February 2025

Real-time data processing is an essential component in the modern data landscape, where vast amounts of data are generated continuously from various sources such as Internet of Things devices, social media, financial transactions, and manufacturing systems. Unlike traditional batch processing methods that analyse data in intervals, real-time data processing enables the continuous intake, manipulation, and analysis of data within milliseconds of generation. This capability is critical for applications requiring instant insights and rapid decision-making, including fraud detection, predictive maintenance, real-time analytics, and autonomous operations. This paper reviews the tools and techniques that have revolutionized real-time data processing, with a focus on cutting-edge platforms such as Apache Kafka and Apache Flink, as well as cloud-native solutions. These technologies offer scalable and fault-tolerant systems capable of managing high-volume data streams while ensuring low latency and data consistency. Apache Kafka provides a highly scalable distributed messaging system, while Apache Flink combines stateful and stateless processing to support complex event-driven applications. This review highlights the. This paper reviews key techniques and tools used in real-time data processing, including stream processing, complex event processing, in-memory computing, micro-batching, and real-time dashboards. In addition, it highlights advancements in real-time data processing frameworks, their capabilities, and their impact on modern business applications. Additionally, the paper explores various tools used in real-time data processing, including Apache Kafka for data ingestion, Apache Flink and Spark Streaming for stream processing, Redis and Apache Druid for real-time storage, and Grafana and Kibana for data visualization. By examining these techniques and tools, this paper highlights the importance of real-time data processing in enabling businesses to make data-driven decisions with minimal latency, ultimately gaining a competitive edge in the rapidly evolving digital world.
Effects of granular organic and inorganic fertilizer combinations on N, P, K uptake and sweet corn yield
Authors: Dirga Sapta Sara  , Emma Trinurani Sofyan  , Benny Joy
Published: February 2025

Sweet corn is a high-value crop with rich nutritional content. Optimizing crop yield requires proper nutrient management, particularly in the absorption of nitrogen (N), phosphorus (P), and potassium (K). This study evaluates the effects of a combination of granular organic fertilizer (GOF) and inorganic NPK fertilizer on nutrient absorption and sweet corn yield grown on Inceptisol soil. The research was conducted from February to May 2024 at the Experimental Field of Universitas Padjadjaran, using a randomized block design with six treatments, including different combinations of GOF and NPK at varying doses (Control, 1 NPK, ¾ NPK + ½ GOF, ¾ NPK + 1 GOF, ¾ NPK + 1 ½ GOF, 1 NPK + 1 GOF). The results indicated that the combination of GOF and NPK enhanced the absorption of N, P, and K compared to the application of NPK alone. The best treatment was ¾ NPK + 1 ½ GOF, which showed a significant increase in nutrient absorption (52.31 mg plant⁻¹ N, 6.30 mg plant⁻¹ P, and 55.63 mg plant⁻¹ K) as well as the highest yield (23,040 kg ha⁻¹ fresh cob weight).
Unveiling the phytochemical tapestry of delonix regia: A comprehensive review of its chemical constituents and phytochemistry
Authors: Arshin Solomon  , Pragya Pandey  , Meghna Singh  , Arnab Roy  , Kshitiz Patel  , Dolly Tiwari
Published: February 2025

Delonix regia, commonly known as Royal Poinciana, is a widely recognized ornamental tree with significant ethnomedicinal value. Its diverse phytochemical composition includes flavonoids, alkaloids, tannins, phenolic compounds, and terpenoids, which exhibit a range of biological activities. The flowers, rich in quercetin and kaempferol derivatives, demonstrate strong antioxidant and anti-inflammatory effects. The bark contains alkaloids, such as β-sitosterol, which has shown anti-inflammatory and antimicrobial properties. Furthermore, phenolic compounds like gallic and ellagic acid enhance the plant’s defence mechanisms and oxidative stress responses. Studies have revealed that the seed pods and leaves possess unique phytosterols and tannins that contribute to their hepatoprotective and antimicrobial properties. The ecological role of D. regia adds toits significance, as it supports local biodiversity and helps regulate microclimates. The tree’s bioactive compounds also hold promise for various pharmaceutical applications, including antioxidant, anti-inflammatory, and antimicrobial therapies. Recent investigations into the structure-activity relationships of these compounds have shed light on their molecular mechanisms, suggesting potential for therapeutic development. Future research may focus on elucidating these mechanisms, optimizing extraction methods, and exploring sustainable uses for this remarkable species in medicine and biotechnology. Delonix regia thus represents a compelling subject for further pharmaceutical and ecological studies.
Analisis Kebutuhan Pengembangan Multimedia Interaktif Berdiferensiasi untuk Memfasilitasi Kemampuan Pemecahan Masalah Peserta Didik SD/MI Muhammadiyah Metro
Authors: Lisa Meilinda Sari  , Rahmawati Dwi , Andayani Sutrisni
Published: February 2025

Tujuan penelitian ini adalah untuk mengetahui kebutuhan media dalam pembelajaran matematikayang perlu dikembangkan untuk peserta didik kelas 4 SD/MI Muhammadiyah Metro. Penelitian ini adalah penelitian deskriptif kualitatif. Subjek penelitian ini adalah pendidik dan peserta didik kelas 4 SD Muhammadiyah Metro Pusat. Teknik pengambilan sampel penelitian ini adalah purposive sampling. Teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara, tes, dan angket. Tahapan analisis yang dilakukan yaitu mentranskrip data, menelaah data, mereduksi data, mendeskripsikan, dan membuat kesimpulan. Analisis data hasil angket dan tes dianalisis dengan metode statistik deskriptif. Hasil penelitian menunjukkan bahwa media yang digunakan pendidik kelas masih belum bervariasi, peserta didik membutuhkan bahan ajar yang mudah dipahami dan dapat digunakan secara mandiri, peserta didik membutuhkan media yang interaktif yang memanfaatkan teknologi, peserta didik membutuhkan media berdiferensiasi yang menyesuaikan kemampuan awal yang bervariasi, mengakomodir gaya belajar visual, auditory, dan kinestetik, peserta didik cenderung menghafalkan rumus-rumus tetapi belum memahami konsep dasar sehingga kurang melatih kemampuan untuk memecahkan masalah, media masih terfokus pada buku paket dan pemberian soal hanya mengambil masalah yang ada di buku paket, peserta didik sulit menyelesaikan soal pemecahan masalah karena hanya diberikan soal rutin, dan soal pemecahan masalah belum banyak menggunakan soal kontekstual. Berdasarkan hasil penelitian diperoleh kesimpulan bahwa perlu dikembangkan multimedia interaktif sesuai karakteristik peserta didik dan perkembangan teknologi yang ada. Media berupa multimedia merupakan salah satu alternatif media yang diperlukan dalam memfasilitasi pembelajaran berdiferensiasi. Selain itu, dengan multimedia interaktif ini digunakan untuk kemamampuan pemecahan masalah.
Systematic Literatur Review: Aplikasi Matriks Dalam Kehidupan Sehari-hari
Authors: Solekah Imroatul , Kurniati Annisah , Yuniati Suci , Rahmi Depriawana
Published: February 2025

Penelitian ini bertujuan untuk mengkaji aplikasi matriks dalam kehidupan sehari-hari melalui tinjauan literatur yang komprehensif. Matriks, sebagai konsep matematika yang luas, telah diterapkan dalam berbagai bidang, seperti teknik, komputer, ekonomi, dan ilmu sosial. Namun, penerapan matriks dalam kehidupan sehari-hari masih terbatas pada area tertentu. Melalui analisis terhadap 15 jurnal yang relevan, penelitian ini menemukan bahwa sekitar 76,47% penelitian mendukung keberadaan hubungan antara aplikasi matriks dan kehidupan sehari-hari, sementara 23,53% lainnya menunjukkan bahwa aplikasi matriks tidak memiliki pengaruh signifikan dalam konteks tersebut. Penelitian ini juga mengidentifikasi faktor-faktor yang mempengaruhi penerapan matriks, seperti ukuran sampel, desain penelitian, dan konteks penggunaannya. Selain itu, beberapa jurnal mencatat adanya hubungan antara aplikasi matriks dengan masalah psikologis, seperti depresi, yang timbul akibat perasaan tidak mampu atau kesulitan dalam mengaplikasikan rumus matriks. Secara keseluruhan, meskipun ada bukti yang mendukung kebermanfaatan aplikasi matriks dalam kehidupan sehari- hari, penelitian lebih lanjut diperlukan untuk memahami lebih dalam tentang dampak sosial dan psikologis dari penggunaan matriks dalam berbagai aspek kehidupan.
Analisis Bibliometrik : Problem Based Learning Dalam Pembelajaran Matematika
Authors: Apriyani Nurwinda
Published: February 2025

Pembelajaran berbasis masalah dikembangkan dalam beberapa bentuk, salah satunya melalui proses pendidikan matematika. Penelitian ini berupaya mengidentifikasi tren dan titik fokus penelitian mengenai pembelajaran berbasis masalah dalam pendidikan matematika. Metodologi yang digunakan adalah analisis bibliometrik. Populasi penelitian bersumber menggunakan program Publish or Perish (PoP) dari tahun 2019 hingga 2023, dengan 200 artikel dipilih sebagai sampel yang memenuhi kriteria kata kunci. Data dicatat dalam Microsoft Excel sebagai bahan pengolahan dan dalam format RIS untuk pemanfaatan dalam perangkat lunak VOSviewer untuk memudahkan pemetaan dalam analisis pola penerbitan. Hasil studi, yang diperoleh dari penelitian utama yang dilakukan antara tahun 2019 dan 2023, menunjukkan adanya tren dalam pembelajaran berbasis masalah dalam pendidikan matematika. Temuan analisis menunjukkan bahwa mata kuliah yang jarang diteliti terkait dengan pembelajaran berbasis masalah berkaitan dengan masalah matematika