bluuebunny/crossref_metadata_2025 huggingface dataset:
Predicting the Dynamic of Debris Flow Based on Viscoplastic Theory and Support Vector Regression
Authors: Zhang Xinhai , Li Hanze , Fan Yazhou , Zhang Lu , Peng Shijie , Huang Jie , Zhang Jinxin , Meng Zhenzhu
Published: January 2025

The prediction of debris flows is essential for safeguarding infrastructure and minimizing the economic losses associated with the hazards. Traditional empirical and theoretical models, while providing foundational insights, often struggle to capture the complex and nonlinear behaviors inherent in debris flows. This study aims to enhance debris flow prediction by integrating theoretical modeling with data-driven approaches. We model debris flow as a viscoplastic fluid, employing the Herschel–Bulkley rheological model to describe its behavior. By combining the kinematic wave model with lubrication theory, we develop a comprehensive theoretical framework that encapsulates the mechanical physics of debris flows and identifies key governing parameters. Numerical solutions of this theoretical model are utilized to generate an extensive training dataset, which is subsequently used to train a support vector regression (SVR) model. The SVR model targets slide depth and velocity upon impact, using explanatory variables including yield stress, material density, source area depth and length, and slope length. The model demonstrates high predictive accuracy, achieving coefficients of determination R2 of 0.956 for slide depth and 0.911 for slide velocity at impact. Additionally, the relative residuals σ are primarily distributed within the range of −0.05 to 0.05 for both slide depth and slide velocity upon impact. These results indicate that the proposed hybrid model not only incorporates the fundamental physical mechanisms governing debris flows but also significantly enhances predictive performance through data-driven optimization. This study underscores the critical advantage of merging physical models with machine learning techniques, offering a robust tool for improved debris flow prediction and risk assessment, which can inform the development of more effective early warning systems and mitigation measures.
Machine Learning Approach for Groundwater Contamination Spatiotemporal Relationship Exploration
Authors: Soni Jayesh , Upadhyay Himanshu , Lagos Leonel , Siddiquee Masudur , Song Xuehang
Published: January 2025

Addressing groundwater contamination, this study applies machine learning (ML) algorithms to explore the spatiotemporal dynamics of hexavalent chromium (Cr[VI]) at the Hanford 100-Area. The research uses an extensive long-term monitoring dataset focused on groundwater wells and aquifers to enhance the understanding and management strategies of this complex environmental issue and predict the impact on aquifers due to the contamination in groundwater wells. The challenging nature of the task is due to various factors, such as the geological nature of the soil, pipeline leaks, and mobility of the particles that impact the speed of contamination. The findings demonstrate a random forest (ML)-based approach to predict the contaminant distributions accurately, thus significantly reducing uncertainties in contamination assessments and refining conceptual site models. This approach advances groundwater quality management and sets a precedent for future AI-driven environmental studies.
A Versatile Workflow for Building 3D Hydrogeological Models Combining Subsurface and Groundwater Flow Modelling: A Case Study from Southern Sardinia (Italy)
Authors: Zana Simone , Ceccarani Gabriele Macchi , Canova Fabio , Rizzi Vera Federica , Simone Simone , Maino Matteo , D’Emilio Daniele , Micaglio Antonello , Bonfedi Guido
Published: January 2025

This research project aims to develop a basin-scaled 3D hydrogeological model by using Petrel E&P (Petrel 2021©) as the basis for a numerical groundwater flow model developed with “ModelMuse”. A relevant aspect of the project is the use of Petrel 2021© geologic modelling tools in the field of applied hydrogeology to improve the details of both hydrogeological and numerical groundwater flow models, and their predictive capabilities. The study area is located in South Sardinia (Campidano Plain), where previous hydrogeological and modelling studies were available. The hydrogeological model was developed by digitising and interpreting the facies in the available borehole logs; a grid was subsequently created, including the main hydrogeological surfaces and performing geostatistical modelling of the facies based on grain size percentages. Afterwards, an empiric formula, achieved from flow tests and laboratory analyses, was applied to the grain size distribution to obtain preliminary hydraulic conductivity values, calibrated during simulations. These simulations, under various groundwater head scenarios, established the boundary conditions and conductivity values needed to determine the hydrogeological balance of the study area. The probabilistic approach has produced a highly detailed model able to adequately represent the natural hydrogeological phenomena and the anthropic stresses in places underground.
Comparative Analysis of Volumetric Mass Transfer Coefficients for Oxygen Uptake and Desorption with Nanobubbles
Authors: Arias-Torres Laura , Silva Javier , Ortiz Rodrigo , Carlesi Carlos , Aroca Germán
Published: January 2025

The volumetric mass transfer coefficients (kLa) of oxygen during sorption and desorption were analyzed using nanobubbles (NBs) of air and pure oxygen under various experimental conditions. The results showed that oxygen NBs achieved an increase in dissolved oxygen (DO) levels during absorption, reaching peaks of 30–34 mg∙L−1 and stabilizing at 31.3 ± 0.2 mg∙L−1, with a volumetric mass transfer coefficient of 0.105 ± 0.002 min−1. In comparison, air NBs showed a lower efficiency, with peak DOs of 8∙10 mg∙L−1 and kLa of 0.048 ± 0.001 min−1. In desorption studies, oxygen NBs had higher DO retention, reducing from 30.0 mg∙L−1 to 15.0 mg∙L−1 in 300 min, with a kLa of 0.042 ± 0.003 min−1, while air NBs decreased more rapidly, with a kLa of 0.028 ± 0.002 min−1. When oxygen was used, kLa outperformed air in both absorption and desorption, with a higher kLa during absorption, a lower kLa during desorption, and higher stability. In addition, the results show that the residence time has an important impact on the performance of NBs, showing that the direct influence of the flow dynamics and surface/to/volume ratio influences the value of kLa. The results highlight the superior performance of oxygen NBs versus air NBs in terms of mass transfer efficiency and stability and highlight the effect of residence time and NB composition in applications requiring efficient oxygen transfer, given the promising prospects for the development of advanced aeration technologies in industrial and environmental contexts.
Diseño del vestido-objeto y su ubicación física, habitable y formativa. Expresión y estética del vestido en la enseñanza
Authors: Vázquez Córdova Lourdes Carolina
Published: January 2025

La proyección de un objeto hacia la vestimenta abre las posibilidades del Vestido. El vestido e indumentaria desde su contextualización en la vanguardia no tiene el carácter exclusivo de moda, pues su permanencia e influencia en la realidad llega a tener más sentido y funcionalidad en el concepto de diseño, cuando este vestido se modifica para ocupar el espacio de arte objeto. Espacio donde la expresión del vestido objeto se naturaliza y así el estudiante de estética genera alteridad entre la relación del seguidor (estudiante) desde su preparación cultural, académica y técnica, con la continuidad académica de el/la examinador/a (profesor/a). La vestimenta como objeto entonces es una propuesta cargada de valor funcional y valor de propuesta; así el habitacional da paso a la humanización del arte en el vestido donde naturalizar es proponer un espacio de desarrollo que exactamente funcione y genere nuevas perspectivas y lecturas que sumen al valor poscualitativo. Entones a partir del objeto vestimenta, que sugiere el objeto para ser habitado por alguien; la deconstrucción que se manifiestan en despieces y técnicas textiles, formateando entonces material didáctico en rasgos de inspiración, innovación y diseño aplicado. Es donde, la experimentación re-inicial del textil y el patronaje son el objetivo de este trabajo final, espacio para que los estudiantes, propongan y elaboren prototipos desde la comprensión de su contexto. De igual forma, la experimentación entendida desde el imaginario de lo re-inicial a modo independientemente en las comprensiones y análisis de los conocimientos. Creando así un ambiente formativo de crítica necesario para el desarrollo académico y la posterior apropiación de las realidades y contextos para un diseño de conceptos.
PALABRAS CLAVE: habitable y formativo; estética; moldería; vestido-acción.
Aula maker, una alternativa que propicia el aprendizaje colaborativo. Análisis desde una mirada teórica
Authors: Ibarra Moreira Nelly Lourdes , Pinargote Macías Eleticia Isabel
Published: January 2025

El proceso educativo se desarrolla en un mundo cambiante en el que la ciencia y la tecnología avanzan a un ritmo vertiginoso, como consecuencia de ello, se han concebido múltiples herramientas y maneras de estimular el conocimiento; así como también, el desarrollo de habilidades en los estudiantes del siglo XXI. Una de estas tendencias educativas son las aulas maker; espacios diseñados con un enfoque constructivista, dotados de herramientas y tecnología que facilitan la ejecución de proyectos innovadores y la integración la teoría y la práctica de los saberes. Esta propuesta genera aprendizajes significativos con un impacto altamente positivo tanto en los estudiantes como en los docentes. El objetivo de este artículo es analizar desde una perspectiva teórica las características, importancia, ventajas, recursos y los resultados que se obtienen con el uso adecuado del aula maker. La metodología utilizada para este estudio fue de tipo descriptiva con un enfoque cualitativo, apoyada con métodos de nivel teórico como el análisis bibliográfico, a través de la revisión de publicaciones tales como artículos científicos, libros, revistas y otros materiales académicos que proporcionaron información del estado actual de la temática en mención. Los resultados demostraron que las aulas makers tienen un gran potencial educativo ya que los estudiantes logran el desarrollo de competencias a través de la experimentación, la manipulación de objetos pertinentes a sus intereses y necesidades; por otro lado, empodera a los docentes en su papel de guía y orientador en los procesos de aprendizaje. Se concluye que el uso del aula maker en el proceso educativo potencia la criticidad, la creatividad, la interacción y la toma de decisiones para la resolución de problemas, el fortalecimiento de valores y facilita el interaprendizaje con grandes beneficios tanto académicos como sociales.
PALABRAS CLAVE: espacio de creación; creador; proceso educativo; educación; hacedores.
Educación y posmodernidad: análisis del pensamiento de Byung-Chul Han y su relación con el desempeño docente secundario
Authors: Peralta Cabrera Roberto Javier , Morales Neira David Job
Published: January 2025

La sociedad actual requiere un estudio más profundo y valorativo del impacto de su proceso en los ámbitos educativos, es por eso por lo que el presente trabajo tiene como objetivo determinar la importancia del pensamiento de Byung-Chul Han sobre la sociedad actual y su influencia en el desempeño laboral de los docentes secundarios. Sobre esta propuesta se realizó una investigación de tipo exploratoria descriptiva, con un enfoque cualitativo y la aplicación de métodos tales como: investigación documental, observación no participativa, la entrevista a grupo focal. El trabajo se realizó a una población de 41 docentes de las áreas de las Sociología, Filosofía, Educación y Pedagogía, de los que se tomó una muestra no probabilista por criterios de inclusión de ocho. La interpretación de los resultados de los métodos y técnicas de investigación permitió establecer los análisis sobre la relación del pensamiento de Byung-Chul Han con el actual desempeño laboral en docentes secundarios en esta sociedad contemporánea y la nueva visión de la educación del siglo XXI.
PALABRAS CLAVE: Byung-Chul Han; Sociedad Contemporánea; Educación; Enfermedades neuronales; Formación docente.
Recursos didácticos que facilitan el proceso de aprendizaje de la Unidad Energía Eléctrica con estudiantes de secundaria
Authors: Vargas-Huerta Felipe Duván , Córdoba-López Maycoll Ariel , Reyes Benavides Kevin Josué , Triminio-Zavala Carmen María , Herrera Castrillo Cliffor Jerry
Published: January 2025

Este artículo se centra en la implementación de recursos didácticos para mejorar el proceso de aprendizaje en la unidad didáctica "La Energía Eléctrica", dirigida a estudiantes de undécimo grado. El estudio buscó la validación de una propuesta didáctica basada principalmente en la utilización de recursos meramente tecnológicos, que se rige de acuerdo, al paradigma interpretativo del Ministerio de Educación (MINED), y se adapta a la programación y planes diarios del sistema de evaluación para los aprendizajes, utilizando aulas digitales móviles. El estudio emplea un enfoque cualitativo, que permitió evaluar los diferentes desafíos de aprendizaje de docentes y estudiantes, a través de la aplicación de técnicas de recolección de datos como, observación, encuestas y entrevistas en línea a una muestra de 25 estudiantes de undécimo grado y 8 maestros de Física de diferentes municipios. La aplicación de recursos didácticos como EducaPlay, Google Sites, PowerPoint, PhET Colorado y Quizizz, demostraron que las clases se volvieron más creativas y motivadoras, fomentando el trabajo en equipo y mejorando la interpretación y análisis de problemas. En resumen, la implementación de estos recursos didácticos se presenta como una estrategia efectiva para mejorar la calidad del aprendizaje en la asignatura de Física para estudiantes de undécimo grado.
PALABRAS CLAVE: Aprendizaje; Energía Eléctrica; Recursos didáctico.
Evaluación auténtica y el aprendizaje de la matemática en los estudiantes del nivel de bachillerato
Authors: Zambrano Bazurto Maria Dolores , Alarcón Barcia Laura Andrea
Published: January 2025

La evaluación auténtica es una metodología de evaluación para el aprendizaje, conducida a través de tareas del mundo real, que requieren los estudiantes al usar su conocimiento y habilidades. El presente estudio tiene como objetivo, determinar los procedimientos de evaluación auténtica y su influencia en los aprendizajes del área de Matemática en los estudiantes del nivel de Bachillerato del distrito 13D02C16-17-19 del Cantón Montecristi-Ecuador. Se desarrolló mediante un enfoque cuali-cuantitativo, la investigación fue descriptiva y de campo; los métodos de análisis y síntesis sirvieron para profundizar el estudio teórico e interpretar resultados con base a las entrevistas a expertos y encuestas: docentes y estudiantes. Los resultados demuestran que los docentes aplican estrategias: trabajos grupales, individuales, rúbricas de evaluación y exposiciones. Los estudiantes afirman que la evaluación auténtica les permite adquirir conocimientos de manera independiente para aplicarlas dentro y fuera de clases; los conocedores manifiestan que no interesa tanto la acumulación de conocimientos repetitivos, sino lo que se sabe hacer, crear, construir o argumentar para adquirir competencias, destrezas y habilidades. Se concluye que la educación debe ser para la vida y no para responder a una prueba estandarizada buscando servir a los propósitos demandantes del sistema educativo.
PALABRAS CLAVE: evaluación auténtica; herramientas evaluativas; destrezas matemáticas; aprendizajes matemáticos.
Estrategia didáctica para favorecer la comprensión lectora en estudiantes de la carrera de Educación Básica
Authors: Bolívar Chávez Ana Alejandra , De La Peña Consuegra Geilert , Bolívar Chávez Oscar Elías
Published: January 2025

La lectura, considerada una tarea compleja demanda acciones sistematizadas, que deben ser intencionalmente orientadas, para llegar a la comprensión y adquisición de significados. A menudo, se encuentran en las aulas, alumnos que no comprenden la lectura y, esto es porque no hay una interacción entre el lector, el texto y el contexto. Y en correspondencia, se planteó como objetivo: elaborar una estrategia didáctica para favorecer la comprensión lectora en los estudiantes del quinto nivel de la carrera de Educación Básica online de la Universidad Técnica de Manabí. Se utilizó una metodología de enfoque mixto, tipo descriptivo y no experimental, apoyada en técnicas como la guía de observación y encuesta. El procesamiento de la información llevó al alcance de resultados relevantes: El nivel de comprensión lectora de los estudiantes es deficiente en relación con el nivel de formación, escaso hábito de lectura, no interpretación del sentido figurado del texto, otros. A partir de los resultados diagnósticos, se elaboró una estrategia didáctica, que propone a través de actividades del ámbito artístico como teatro, música y artes plásticas, potenciar la comprensión lectora de los estudiantes, para lograr aprendizajes significativos. La valoración de la propuesta, se realizó al considerar el criterio de especialistas y su posibilidad de implementación, lo cual, viabilizó un resultado positivo al evidenciar que las actividades inmersas en la estrategia didáctica, están enfocadas a dinamizar el proceso de enseñanza – aprendizaje, y favorecer la comprensión lectora en los estudiantes.
PALABRAS CLAVE: Lectura; Estrategia didáctica; Competencias lectoras; Adquisición de significados.
Desafíos de Enfermería ante los Objetivos de Desarrollo Sostenible
Authors: Aguirre Raya Dalila Aida , Amorós Aguirre Daniella
Published: January 2025

La Organización de las Naciones Unidas en el 2015 hizo un llamado universal y enunció los Objetivos para el Desarrollo Sustentable relacionados con la supervivencia de la especie donde se convoca a la participación activa de todos los sectores de la sociedad. Se estimula el desarrollo de acciones que reduzcan las inequidades, la pobreza, mejoren el acceso al agua segura, y entre otros objetivos. Enfermería fue llamada a desempeñar un rol protagónico dentro de los espacios asistenciales, académico e investigativo a pesar de la difícil situación que atraviesa el mundo que crea las bases para la reducción de sus presupuestos, los salarios y los servicios de salud cuando se necesita que los gobiernos y los directivos sanitarios centren su atención en el cuidado integral de las personas y la satisfacción de sus necesidades básicas. La Enfermería tiene un vínculo especial con la sociedad, es un agente de cambio que mejora indicadores de salud, aunque su labor no es socialmente reconocida predomina una visión médico centrista de la atención en salud. La politización de los procesos en salud ha reducido la posibilidad de toma de decisiones de sus directivos y limitado su participación en asuntos de su competencia.
Palabras clave: Gerencia de enfermería; Enfermería; Desarrollo sustentable
Estudio de la infección por Ascaris suum (Nematoda: Ascarididae) en porcinos faenados de Santo Domingo, Ecuador. Análisis retrospectivo (2017–2023)
Authors: Moreira Mera Jordan , Fonseca Restrepo Carolina , Angulo Cubillán Francisco Javier
Published: January 2025

El objetivo de este estudio fue determinar la prevalencia de Ascaris suum en porcinos faenados en el Frigorífico Municipal de Santo Domingo, Ecuador, entre 2017 y 2023, dada su importancia en la salud pública y la producción porcina.Se analizaron los datos del total de animales faenados y el número de infectados, identificados a través del decomiso de hígados con lesiones compatibles con parasitosis y la presencia de especímenes adultos en los intestinos. Durante los seis años analizados, se faenaron 120.988 animales, de los cuales 10.222 resultaron infectados, lo que representa una prevalencia general del 8,74%. Los resultados mostraron diferencias significativas en la prevalencia a lo largo del tiempo, con una tendencia decreciente. A pesar de esta disminución, la infección por A. suum sigue siendo un problema en las unidades de producción, lo que subraya la necesidad de reforzar los programas de educación sanitaria y las medidas de bioseguridad para reducir la prevalencia del parásito y mitigar su impacto en la salud pública y la industria porcina.
EFEKTIFITAS TERAPI KOGNITIF PERILAKU TERHADAP PENCEGAHAN PERILAKU BULLYING PADA SISWA SMPN KOTA BEKASI
Authors: Meilita Zuhriya , Seni Seniwati
Published: January 2025

Maraknya tindakan bullying yang terjadi di lingkungan sekolah saat ini sudah sangat memprihatinkan. Komisi Perlindungan Anak Indonesia (KPAI) sepanjang tahun 2016-2020, prevalensi kasus pengaduan anak berdasarkan klaster perlindungan anak pada komponen anak menjadi korban bullying sejumlah 480 anak dan anak sebagai pelaku bullying terdapat sekitar 437 anak. Bullying dapat menimbulkan efek yang negatif terhadap kesehatan mental dan kesejahteraan anak. Dampak negatif dari bullying pada anak yang menjadi pelaku atau korban terdiri atas kecemasan, depresi, bahkan risiko bunuh diri. Salah satu strategi yang dapat dilakukan untuk mencegah bullying adalah dengan terapi kognitif perilaku. Penelitian ini bertujuan untuk menganalisis pengaruh terapi kognitif perilaku terhadap pencegahan perilaku bullying. Jenis penelitian ini experimental research, dengan desain two groups independent sample t test, dengan kelompok eksperimen dan kelompok kontrol. Populasi penelitian Siswa SMPN Kota Bekasi, teknik pengambilan sampel dengan jumlah 78 responden dengan simple random sampling. Intervensi yang diberikan adalah latihan kognitif perilaku dengan 3 sesi selama 30 – 45 menit. Alat pengumpulan data adalah adolescent peer relationship instruments. Hasil penelitian analisis univariat dan bivariat menggunakan uji Paired Samples T-Test. Hasil penelitian munujukkan rata-rata perilaku bullying pada kelompok intervensi sebelum diberikan terapi kognitif perilaku adalah 29,63, sesudah diberikan terapi perilaku kognitif adalah 22,50. Pada kelompok kontrol, rata-rata perilaku bullying sebelum intervensi adalah 24,05 dan rata rata perilaku bullying setelah intervensi 24,24. Hasil uji man whitney T test menunjukkan adanya perbedaan kelompok kontrol dan intevensi setelah diberikan terapi kognitif perilaku dengan nilai Sig. (2-tailed) 0,036 < 0,05. Simpulan penelitian ini adanya efektifitas terapi perilaku kognitif terhadap perubahan perilaku bullying pada siswa SMPN Kota Bekasi. Saran untuk pihak sekolah teruma bagian Bimbingan Konseling (BK) bisa menerapkan terapi perilaku kognitif untuk mencegah terjadinya perilaku bullying
HUBUNGAN KARAKTERISTIK DEMOGRAFI DENGAN KEPATUHAN PEMBATASAN CAIRAN PADA PASIEN CHRONIC KIDNEY DISEASE (CKD) DENGAN HEMODIALISIS
Authors: Rafingah Siti , Suratmi Suratmi , Istiqomah Istiqomah
Published: January 2025

Insiden CKD meningkat setiap tahun dan menjadi masalah kesehatan utama di seluruh dunia. Indonesian Renal Registry (IRR) melaporkan bahwa pada tahun 2018 sebanyak 36.975 jumlah penderita gagal ginjal kronik yang menjalani dialysis. Hasil studi systematic review  dan meta analisis Hills dkk(2016 )menunjukkan 13,4% penduduk dunia menderita CKD. Masalah utama pada pasien yang menjalani hemodialisis adalah kepatuhan dalam pembatasan asupan cairan yang dimanifestasikan dengan penambahan berat badan diantara dua waktu dialisis. Ada banyak faktor yang menyebabkan rendahnya kepatuhan pasien dialysis dalam restriksi konsumsi cairan. Penelitian ini  bertujuan untuk mengidentifikasi umur, Jenis Kelamin dan Pendidikan dengan kepatuhan pembatasan cairan pada pasien CKD dengan menggunakan  metode descriptive  corelative dengan rancangan cross sectional. Pengambilan sampel dilakukan dengan purposive sampling sebanyak 106 responden. Analisis univariat dengan mayoritas dalam kategori umur dewasa madya (41-60 th) sebanyak 70 orang (66%), Jenis kelamin laki-laki 61 (57%), Pendidikan SMA 48 (45.3%). Uji Chi Square dengan nilai p value Umur : 0,013, Jenis kelamin 0,046 dan Pendidikan 0,196. Kesimpulan  Terdapat hubungan yang signifikan umur, jenis kelamin dengan kepatuhan pembatasan cairan, sedangkan Pendidikan tidak berhubungan ( p value 0,196 > α 0,05.
Improving Regional Welfare Through Stakeholder Management
Authors: Simorangkir Cavin Ornando , Yuniawati Fitri , Adellia Monica , Nabilla Affra , Purba Dewi
Published: January 2025

The Floating Market holds significant potential to attract tourists, making it essential to integrate a welfare-oriented approach into its management to ensure contributions to regional development. Effective governance and collaboration among stakeholders, including local governments and non-governmental actors, are crucial for balancing tourism growth with sustainability. This study explores the roles of stakeholders in managing Floating Market resources, identifies key challenges, and offers insights for promoting local engagement and enhancing regional welfare through targeted policies. Using a descriptive qualitative approach, the research employs purposive sampling to conduct in-depth interviews with key stakeholders, including Floating Market management, workers, local residents, and representatives from the West Bandung Regency (KBB) Tourism and Culture Agency. Data analysis, using Social Network Analysis (SNA) and stakeholder mapping, identifies roles, relationships, and influence within tourism management. The results highlight critical issues affecting regional welfare, such as a lack of transparency in recruitment, limited training opportunities for workers, low wages, and environmental challenges like traffic congestion and waste management. The study suggests strategies to address these issues, including creating inclusive recruitment processes, implementing routine professional development programs, establishing fair wages, integrating health and employment insurance, improving infrastructure, and promoting sustainable practices. Another key strategy is to enhance the use of local products in the market, supporting local agriculture. Additionally, fostering open communication between management and locals is vital to ensure equitable distribution of tourism benefits. Effective stakeholder management can enhance the socio-economic impacts of tourism, benefiting both the Floating Market and the broader West Bandung Regency.
Diagnóstico dos processos de licenciamento submetidos à secretaria municipal de Rorainópolis, RR entre 2017 e 2020
Authors: Wilker Corrêa Morais Weslley Wilker , da Rocha Pereira Fernanda , Bittencourt Facco Morais Janice
Published: January 2025

Este trabalho tem como objetivo trazer informações sobre os processos e concessões de licenciamentos e certidões ambientais realizados em todo o município de Rorainópolis, RR, entre os anos de 2017 a 2020. O método de pesquisa utilizado foi a pesquisa bibliográfica e documental, sobre os processos ambientais executados na Secretaria Municipal do Meio Ambiente de Rorainópolis. As informações foram adquiridas no acervo físico e no banco de dados eletrônico do órgão ambiental. Todas as informações foram anexadas em planilha digital e a partir desses dados foram realizadas as respectivas análises e interpretações. Por meio dos resultados obtidos foi possível constatar que a Certidão de Uso e Ocupação do Solo (CUOS) e a Licença Ambiental Simplificada (LAS) foram os procedimentos ambientais mais realizados na secretaria municipal; quanto a duração dos processos, mais de 80% foram processados em até uma semana, tanto para CUOS quanto para LAS; a Licença de Operação (LO) foi considerada mais complexa, 43,12% dos processos tramitam no departamento por mais de um mês; é possível observar o potencial agrário/florestal do município de Rorainópolis, devido a maioria das licenças simplificadas analisadas foram oriundas de atividades relacionadas a agricultura, pecuária e florestal; a ocorrência do aumento anual da quantidade de licenças emitidas pela secretaria municipal demonstrando o desenvolvimento municipal.
Occurrence and habitat preference of wildanimal in T. A. Afolayan wildlife park, Nigeria
Authors: Adetola Bukola Omotomilola , Olaniyi Oluwatobi Emmanuel , Abifarin Adelayo Sunday
Published: January 2025

Adequate knowledge of the occurrence and habitat preference of wild fauna species in an ecosystem is critical for taking stock of what is available and improving its effective management. This study was conducted at the T.A. Afolayan Wildlife Park in Federal University of Technology Akure, Nigeria. Data on population and species of animal in relation to the habitat where they are found was obtained using Camera trap, direct and indirect methods along the established transect in the park. Vegetation data obtained were analyzed using descriptive statistics and Shannon Werner Diversity Index (H). Result showed that six species of wild animals were observed which include tree squirrel (Paraxerus cepapi), maxwell duiker (Philantomba maxwellii), bushbuck (Tragelaphus scriptus), black cobra (Naja nigricollis), flat-headed cusimanse (Crossarchus platycephalus) and fresh water turtle (Pelusios species). Tree squirrel has a higher naïve occupancy (NO=1.00) while fresh water turtle the lowest naïve occupancy (NO=0.14).  A total of 36 tree species belonging to 16 families were identified with Diversity index (H1) of 2.68, also Diversity index of 2.56 and 2.00 were recorded for open secondary forest and rock outcrop vegetation respectively.  Maxwell duiker and bushbuck were encountered along the open secondary forest and degraded vegetation, tree squirrel were found in open secondary forest and the water turtle were found in Rock outcrop. The study has provided insight on the distribution of wild animal species in the park while recommending that the University administration should be proactive in the management of wildlife resources in their conservation area.
Violin works by Kharkiv composers of the second half of the 20th – early 21st century: historical and stylistic excursion
Authors: Kalynychenko Yaroslav
Published: January 2025

Statement of the problem. The creativity of Kharkiv’s composers has always been an important part of Ukrainian musical culture. In the second half of the twentieth century, Kharkiv became a real epicenter of musical innovation. The composers of this school did not just create music they rethought the very essence of Ukrainian musical sound, and the violin in their scores appeared to be a powerful instrument of these transformations. The musical history preserves names wide known in the country, including Valentyn Borysov, Vitalii Hubarenko, Volodymyr Zolotukhin, Valentyn Bibik, Volodymyr Ptushkyn, Yulii Meitus, Dmitry Klebanov, Оlexander Zhuk, Borys Yarovynsky. Kharkiv’s composers did not just use the violin, they had rethought its role in contemporary music. From folk motifs to avant-garde experiments, from chamber works to large-scale symphonies, violin has become a versatile tool for expressing a variety of ideas and emotions. In their work the violin from the traditional string instrument was transformed into a universal means of musical expression. Objectives, methods, and novelty of the research. In general, the violin music of Kharkiv composers has not received thorough coverage in domestic musicology. The purpose of the article is to cover the violin work of prominent Kharkiv composers and to trace the formation of modern trends in the violin art of Kharkiv in the second half of the XX – early XXI century. A comprehensive approach to the study of the material is involved, based on cognitive methods – historical-cultural, biographical, as well as comparative and musical-theoretical analysis. Practical ones – gathering and describing information – and theoretical general scientific methods of systematization and generalization of the material are also used. Research results and conclusion. The Kharkiv composing school made a significant contribution to the development of Ukrainian violin music, demonstrating the synthesis of national traditions and modern composer techniques. The violin work by Kharkiv composers is characterized by a wide range of styles and genres from neo-folklore trends to avant-garde experiments. The peculiarity of the Kharkiv school is the interpretation of the violin as a universal instrument capable of embodying both traditional and innovative ideas. In the work by Kharkiv composers, the violin often acts as a carrier of the lyrical beginning, without losing their virtuoso possibilities. There is an evolution of approaches to violin music from classical forms to the older generation to experimental techniques in younger composers. The Kharkiv school developed in the context of pan-European trends, while maintaining a deep connection with the Ukrainian musical tradition. The creativity by Kharkiv composers helped to expand the expressive opportunities of the violin and the enrichment of the Ukrainian violin repertoire.
PERBANDINGAN PENGUKURAN TINGKAT KEPUASAN PENGGUNA TERHADAP WEBSITE DESAIN GRAFIS CANVA DAN VISTACREATE MENGGUNAKAN METODE IMPORTANCE PERFORMANCE ANALYSIS (IPA)
Authors: Asih Winantu  , Naffa Sefrina Ratuliu
Published: January 2025

ABSTRACT
This study aims to make an analysis and comparison of the level of user satisfaction with two online graphic design platforms, Canva and VistaCreate, using the Importance Performance Analysis (IPA) method. The IPA method is used to evaluate the extent to which the performance of the two platforms meets the expectations and needs of users based on the attributes considered important. Data was collected through a survey of several users who had used both websites. 3 tests were carried out, including the conformity level test, the gap level test (GAP), and the quadrant level test. The study results show that both websites have not met the expectations of user satisfaction levels, even though the Canva website has a higher satisfaction value. Evaluation and improvement on both websites should be carried out continuously.
REVITALISASI USAHA KELOMPOK PETERNAK RINDU KELURAHAN BAHOI PULAU TAGULANDANG MELALUI PROGRAM KOSABANGSA
Authors: Nindy Gaby Sepang  , Aprildy Randy Andrew Ferdinandus  , Priska Thelma Shirty Mawuntu  , Syamsul Hadi  , Okid Parama Astirin  , Joko Riyanto
Published: January 2025

The Rindu Breeders Group, Bahoi Village, Tagulandang Island produces free-range chicken carcasses of ± 100 kg/week. Mitra has a very traditional cage with chicken mortality reaching 25%, basic feed without formulation and not meeting the needs of free-range chickens with a weight gain of rearing chickens of 1000 g/90 days, hatchability of 40% in breeding and embryo mortality of 50%. Agricultural products are cloves amounting to 250-500 kg/harvest, nutmeg and salak fruit which are marketed without processing. The eruption of Mt. In early 2024, 1304 people from Bahoi sub-district were forced to evacuate because they were worst affected due to the proximity of their residence to Mt. Room. Target Partner Areas are Kosabangsa's Priority, namely underdeveloped areas (3T areas) and Disaster Prone. Kosabangsa Regional Sector Rindu Farmers Group: Animal Husbandry, the problems of the Rindu farmer-livestock group are the production aspect and the marketing aspect. In terms of production, after the disaster, the number of chicken livestock decreased greatly and livestock cages were badly damaged. Animal feed without good feed formulation. Low production of day old chicks. In the management aspect, there is no clear division of tasks in the group organization and the marketing aspect has not been formed so that marketing is not optimal. The Rindu Science and Technology Farmers Group that will be invested in includes the modernization of free-range chicken colony cages, animal feed processing equipment technology, implementation of egg incubator technology, implementation of solar cell technology, implementation of salak, nutmeg cutting equipment technology and livestock waste processing equipment technology.
PERENCANAAN PENGEMBANGAN SISTEM DISTRIBUSI AIR BERSIH DI DESA BEBIDAS, KECAMATAN WANASABA, KABUPATEN LOMBOK TIMUR, NUSA TENGGARA BARAT
Authors: Muh Roni Hasbiani  , Angge Dhevi Warisaura*  , Purnawan
Published: January 2025

Clean water is important in the lives of rural communities, one of which is Bebidas Village. It has been observed that four hamlets in Bebidas Village do not have a distribution system because their geographical location is higher than that of the previously used water sources. These hamlets include Jurang Koak, Burnei, Dasat Erot, and Tanak Betian. Therefore, it is necessary to develop a clean water distribution system so that the need for clean water in Bebidas Village can be met. 
The distribution system in Bebidas Village is planned to use a gravity system designed with the EPANET 2.2 application. The projected population growth is calculated using arithmetic and geometric methods to determine the projected need for water. 
In 2028, the population are 728 for Jurang Koak, 1037 for Tanak Betian, 520 for Burnei, and 1079 for Dasan Erot. The total need for clean water in 2028 is 3.76 liters/second, while the availability of water from the Bawak Pusuk, Sebau, and Sanggah springs reaches 6 liters/second, so it can be concluded that the need for water for these four hamlets until 2028 is met. The plan to develop a water distribution network uses three reservoirs, namely Reservoir 1 dimensions 4.66m x 2.33m x 3.3m for Dasan Erot, while Reservoir 2 dimensions 6.78m x 3.39m x 3.3m for Burnei and Jurang Koak. Reservoir 3 dimensions 4.56m x 2.28m x 3.3m for Tanak Betiant. The distribution uses PVC pipes with a diameter of 5” and 4” for Dasan Erot, 3”, 4”, 5” for Burnei and Jurang Koak, and 3” for Tanak Betian.
ANALISIS PENGENDALIAN BAHAN BAKU TERHADAP JUMLAH PERMINTAAN MENGGUNAKAN METODE MATERIAL REQUIREMENT PLANNING PADA PT KILANG PERTAMINA INTERNASIONAL (KPI) RU V BALIKPAPAN
Authors: Nugraha Davin Satria , Andrean Emaputra
Published: January 2025

PT Kilang Pertamina International (KPI) Refinery Unit V Balikpapan actively meets the needs of oil and gas in Indonesia, with a capacity of 260 mbsd, upgraded to 360 mbsd, requiring proper production planning and raw material availability. The Refinery Business & Optimization (RBO) department is responsible for planning, managing operations, and controlling feedstock inventory. Crude oil availability is key to successful production. Research shows the importance of inventory control for operational efficiency. The Material Requirement Planning (MRP) method systematically plans material requirements, helping reduce the risk of shortages or excess raw materials. In analyzing with MRP, three perspectives are used: Economic Order Quantity, Lot for Lot, and Period Order Quantity, where the minimum total inventory cost and setup cost will be sought as a basis for decision-making in controlling raw materials. The results of the data analysis show forecasting calculations to predict the minimum crude oil demand in 2024, based on actual monthly data in 2023. The Moving Average-4 method produces an estimated demand of 7,776,131 barrels per period, with a total procurement of 93,313,584 barrels for 2024. Data processing is continued with the MRP method using Economic Order Quantity (EOQ), Lot For Lot (LFL), and Period Order Quantity (POQ). The ordering results show that the initial stock is 3,948,093.67 barrels, and the EOQ calculation results in a total procurement cost of $6,697,177.70. Meanwhile, the LFL method resulted in a cost of $6,634,913.42. With POQ, the optimal cost obtained is $6,363,031.38. Of the three methods, POQ was chosen as the planning method for crude oil procurement in 2024.
STUDI UJI IMPAK PADA KOMPOSIT BERBAHAN CAMPURAN SERBUK KEONG SAWAH UNTUK FRAME DRONE
Authors: Ahmad Ihsan Fuady  , Hadi Saputra  , Saiful Huda
Published: January 2025

The rice snail (Pilla ampullacea) is an aquatic snail that is commonly found in the freshwater waters of Southeast Asia. The shell of the sawah snail has a dark green to blackish color and contains calcium carbonate (CaCO3), which has the potential to be used as a filler in the manufacture of composites. This study aims to identify the effect of the addition of rice snail shell powder on the mechanical properties of composites, as well as to compare their performance with conventional filler-based composites. In addition, this study also evaluates the production cost of the composite of rice snail shell powder for drone frames. In this study, researchers used the literature study method. The testing stages include making specimens, then conducting impact, tensile and bending tests on these specimens, as well as collecting and analyzing test data. The results showed that rice snail shell powder was not very significant in improving performance as a composite filler. Carbon fiber still shows superior performance, with average impact test results of 332,5 kJ/m2, tensile test of 742,8610 MPa and bending test of 187,8 MPa. Although the test data is relatively far in performance, the use of rice snail shell powder is still worthy of further research because of its abundant availability in nature, so it has economic value. In addition, the potential to reduce environmental pollution due to carbon waste and help farmers overcome pests in rice plants is also a reason.
PENGARUH VARIASI TEMPERATUR HOLDING TIME TERHADAP KEKERASAN DAN BEBAN IMPAK BAJA AISI 1045 DENGAN MEDIA PENDINGIN OIL
Authors: Cahya Ramadhan Novta Sukma , Mudjijanto*  , Ali Achmadi  , Ratna Dwi Rahayu
Published: January 2025

Hardening is one method to increase the hardness of a material with the aim of making the material resistant to friction and not easily broken. The hardening process will be optimal if the temperature and cooling media used are considered. This research is experimental using AISI 1045 steel specimens with a length of 55 mm, a width of 10 mm, and a thickness of 10 mm. The number of specimens tested was 10 specimens. The specimens were given heat treatment (hardening) with temperature variations of 800°C, 850°C, and 900°C with a holding time of 30 minutes, followed by rapid cooling using oil media. After that, the hardness of the specimen was measured using the Rockwell Cone Hardness (HRC) test and the Charpy impact test. The results showed that at a temperature of 800°C, the average hardness value was 56 HRC, and the energy absorbed was 21,890 J. At a temperature of 850°C, the average hardness value decreased to 51.6 HRC with an absorbed energy of 30,894 J, while at a temperature of 900°C, the average hardness value becomes 45.6 HRC with an absorption energy of 32,719 J. In conclusion, there is a significant effect of the variation in hardening temperature on the hardness and impact value of AISI 1045 steel with oil cooling media. Increasing temperature correlates with a decrease in hardness value and, conversely, correlates with an increase in absorption energy and impact value of AISI 1045 steel
IDENTIFIKASI PRIORITAS DEFECT DENGAN MENGGUNAKAN METODE FAILURE MODE AND EFFECT ANALYSIS (FMEA) PADA FINAL DRIVE UNIT HD785-7 DI PT XYZ
Authors: Devi Apriyanti
Published: January 2025

This study aims to determine the priority order of improvements that the company must undertake to minimize defects in the remanufacturing results at PT XYZ, an industry engaged in remanufacturing and assembling heavy equipment components such as engines, transmissions, torque converters, power modules, final drives, and other components. In the remanufacturing process of the Final Drive unit HD785-7 from January to June 2024, 16 frequently occurring failure modes were identified through the completion of a Failure Mode and Effect Analysis (FMEA) questionnaire at PT XYZ. Based on the analysis results, the failure modes categorized as critical failures and prioritized for improvement include abnormal damaged threads with the highest Risk Priority Number (RPN) of 495.6, incorrect physical parts with an RPN of 384, worn-out hole threads with an RPN of 264, abnormal dents on the contact surface with an RPN of 251.1, and unevenly worn threads with an RPN of 204.4. From these five critical failure modes, a priority order for improvement has been established for the company to reduce defect risks in remanufacturing results. The proposed improvements are developed using a fishbone diagram to identify the main causes of critical failure modes, encompassing four main aspects: human, material, machine, and method. With this approach, the company is expected to implement more effective and targeted improvements addressing the root of the issues, thereby enhancing product reliability and reducing the risk of defects in the future.
IMPLEMENTASI GREEN LOGISTICS DI ERA SOCIETY 5.0 DALAM MENDUKUNG EKONOMI HIJAU DAN PEMBANGUNAN BERKELANJUTAN
Authors: Sukma Maharany  , Tesalonika Br Perangin-angin  , Abharina Septya Anggraeni  , Amanda Dwi Wantira
Published: January 2025

Logistics is a concrete form of implementing a green economy in the logistics sector so that green logistics and green logistics have a positive relationship. The implementation of sustainable development focuses on three things, namely, the economic field, the social field, and the environmental field. The economic sector refers to the implementation of the green economy, the social sector which focuses on society 5.0 and the implementation of green logistics in the environmental field. In this era of society 5.0, sustainable development is a matter of great concern, not only providing short-term benefits but also considering the long-term impact on the environment and society. This research uses a qualitative method with descriptive literature search analysis, by collecting journals and other documents to help write this research. The purpose of this research is to analyze how green logistics supports the implementation of a green economy to realize sustainable development in the era of society 5.0. The results show that the implementation of green logistics is a form of realizing a green economy that supports sustainable development in the era of society 5.0. By implementing green logistics practices, it can reduce the increase in pollution, reduce carbon emissions, promote renewable energy, and social inclusion resulting from the logistics industry. This also boosts the improvement of the green economy and the role of society so that the impact on damage is reduced.
DETEKSI PENYAKIT DIABETES RETINOPATHY MENGGUNAKAN CITRA DIGITAL DENGAN METODE CONVOLUTIONAL NEURAL NETWORK (CNN)
Authors: Nurohman  , Rudi Heriansyah  , Dwi Asa Verano  , Zaid Romegar Mair
Published: January 2025

Diabetic retinopathy (DR) is a serious complication of diabetes that can lead to blindness if not detected and treated early. Conventional screening methods involve fundus examination by trained medical personnel, which is time-consuming and costly. This study proposes an automated detection approach for diabetic retinopathy using digital fundus images and Convolutional Neural Network (CNN) methods. CNN, a deep learning architecture, is utilized to automatically learn and extract features from retinal fundus images. The dataset used for detection and classification consists of 5 classes: mild, moderate, no_DR, proliferative, and severe. The image training process employs the VGG-19 model trained for 100 epochs, achieving a commendable accuracy of 72% with a dataset of 3000 fundus images split into a 70:30 ratio for training and validation (70% for training, 30% for validation). The diagnosis results include 2160 images classified as DR and 840 images classified as NDR. Training with an 80:20 data split (80% for training, 20% for validation) yielded an accuracy of 69%, with 2070 images diagnosed as DR and 930 images as NDR.