bluuebunny/crossref_metadata_2025 huggingface dataset:
Incidencia de hepatitis B en personal de riesgo
Authors: Soto Cordón Silvia Eugenia , Cáceres Julio , Pérez Folgar Jorge R.
Published: February 2025

Con el objeto de establecer la incidencia de hepatitis B en personal de riesgo, se realizó un estudio serológico entre 325 trabajadores de salud del Hospital General San Juan de Dios de Guatemala; en el cual se evaluaron los siguientes marcadores: Antígeno de Superficie de Hepatitis B(HBsAg), Anticuerpo contra el Antígeno de Superficie (Anti-HBsAg), y Anticuerpo contra el Antígeno Central (Anti-Core).
Utilizamos en nuestro estudio, las técnicas de: Ensayo Multienzimático en Fase Sólida ELISA, según los métodos de Enzygnost de Behring y Hemaglutinación Pasiva SERODIA. Tomando como positivos todos aquellos casos en que se encontró al menos uno de los tres marcadores serológicos evaluados.
Incluimos en el estudio distintas áreas de trabajo, así como distintas profesiones y oficios, a fin de determinar aquellas de mayor riesgo de infección con el virus de la hepatitis B, Además, a todas las personas incluidas en el estudio, se les realizó una encuesta en que se evaluaron aspectos diversos, que nos permiten determinar si la incidencia encontrada puede atribuirse a factores laborales (áreas de trabajo, frecuencia y tipo de accidentes laborales, prácticas riesgosas, etc),o a otras causas ajenas a su profesión (drogas I.V., transfusiones sanguíneas previas, vacunas contra HB, tatuajes, etc). Obtuvimos un total de 40 casos positivos (12.31%) de la población estudiada, los cuales revelaron lo siguiente:
0 casos de HBsAg (ningún caso de hepatitis B aguda o estado de portador crónico asintomático).
32 casos de Anti-HBsAg y Anti-Core (infección pre-via seguida de inmunización por producción de anticuerpos).
1 caso únicamente Anti-HBsAg (por inmunización previa con vacuna).
7 casos solo Anti-Core (infección previa en que ya desaparecieron los Anti-HBsAg, o período de ventana”, en que ya no se detecta HBsAg y aun no hay Anti-HBsAg) (1).
Diseño de un programa de monitoreo biológico a largo plazo mostrando a través de un estudio de caso: El corte selectivo del bosque en la cooperativa Bethel, La Libertad, Peten.
Authors: Menéndez Hernández Claudio Aquiles , Lara Oscar Francisco
Published: February 2025

Los requerimientos para el planteamiento, diseño y ejecución de un programa de monitoreo ecológico son mostrados a través de este estudio de caso, el efecto a largo plazo del corte selectivo del bosque sobre la diversidad biológica en la Cooperativa Bethel. La Libertad, Peten.
La información existente sobre los planes de manejo forestal de Bethel fue analizada para conocer los detalles de su ejecución. Se examinaron los datos de un estudio de! efecto del primer corte selectivo efectuado según el plan de manejo. Se realizaron verificaciones de campo para conocer los aspectos prácticos del manejo forestal referido y las características del área en general. Con esta información fue posible caracterizar e interpretar el tratamiento. Se recopilaron y analizaron los datos de un estudio piloto sobre mariposas diurnas, escarabajos copronecrófagos y mamíferos menores para ser probados como indicadores de los cambios en ¡a diversidad biológica producidos por el tratamiento, siguiendo las recomendaciones de Landres (1988), Noss (1990) y Kremen (1992).
Con toda esta información se planteó un diseño de monitoreo de la diversidad biológica con una duración mínima de 20 años. El diseño busca probar posibles cambios en la heterogeneidad (diversidad P) producidos por el efecto crónico del tratamiento.
Elaboración de un colorímetro de campo basado en un fotorresistente CdS
Authors: Ortiz Oliver , Gross Adolfo Léon
Published: February 2025

La elaboración de un colorímetro de campo, se hace necesaria para la cuantificación de aquellas sustancias cuyo tratamiento de muestra requiere cuidados especiales, Para el analista tiene especial importancia poder determinar concentraciones semicuantitativas en el lugar de recolección de muestra. Como una respuesta a esta circunstancia se procedió a fabricar un colorímetro portátil basado en un multímetro de alta impedancia (1). El colorímetro fabricado funciona basado en la respuesta que se obtiene de una fotorresistencia de sulfuro de cadmio. Una vez fabricado el dispositivo físico, se procedió a calibrar dicha respuesta. Se realizaron curvas de calibración de soluciones de sulfato de cobre, cloruro de cobalto, dicromato de potasio de concentraciones entre 1M y 0.1 M. El tipo de respuesta encontrado fue lineal con respecto a la concentración vrs. resistencia, Con el objetivo de determinar su reproducibilidad se realizaron curvas de calibración de los mismos reactivos, pero de concentraciones entre 0.001 y 0.1 M. repitiendo cada curva de calibración un mínimo de 10 veces. Cada una de las curvas se determinaron al mismo tiempo en el colorímetro Klett-Sommerson. Se obtuvo una mejor reproducibilidad con el colorímetro basado en la fotoresistencia de CdS, que el colorímetro comercial. No se hizo una comparación estadística entre ambos colorímetros. Se obtuvieron resultados satisfactorios para el colorímetro construido.
Elaboración de un juego de reactivos para la semicuantificación de yodo como yodato de potasio en sal solar y refinada.
Authors: Véliz Fuentes Ricardo , Gross Adolfo Léon
Published: February 2025

Con el objeto de elaborar un juego de reactivos de semicuantificación de yodo en sal solar y refinada para el control de calidad de la sal expendida en Guatemala, se analizaron y se experimentaron cuatro métodos son titrimétricos (yoduro-yodato: HCI) y los otros dos son colorimétricos (pirogalol, pamínofenol). Evaluando la sensibilidad y confiabilidad, se determinó que los cuatro métodos son adecuados para la semicuantificación de yodato en la sal. Pero en la cuantificación directa, los métodos {¡trimétricos son más sensibles que los métodos colorimétricos. No se determinó el método para implementarlo como juego de reactivos. En la prueba realizada con sal solar y refinada expendida en la ciudad capital demostró deficiencia de yodo (debajo del límite mínimo permitido por COGUANOR).
Producción del radiofármaco nanocoloide de albumina marcado con 99mTC para estudios centellograficos del sistema linfatico y medula osea
Authors: González Alvarado de Torres Alba Evelia , Quintero Jordán Claudia María
Published: February 2025

El objeto del presente trabajo fue realizar la producción, de un nuevo radiofármaco, para la detección de cáncer, el control de calidad por medio de la pureza radioquímica, control microbiológico y calidad organoléptica, evaluar la biodistribución en ratas y comprobar su estabilidad.
 
El fármaco NANO-COLOIDE DE ALBUMINA, se marcó con 99mTc. La biodistribución se evaluó en ratas albinas y los resultados se sometieron a un análisis de varianza de una vía y comparaciones múltiples.
Epidemiología de adenovirus respiratorios en niños pre-escolares de Guatemala
Authors: Samayoa Calvo , Cruz López M.M.Y. , R. José
Published: February 2025

Las infecciones respiratorias agudas (IRA) en infantes son una importante causa de mortalidad y morbilidad, y absorben una gran cantidad de los recursos destinados a la salud. Las secuelas de I R A son serias ya que pueden producir una obstrucción crónica de las vías respiratorias (1).
Existen muy pocos datos sobre la extensión del problema de IRA en los países en vías de desarrollo. Mata, evaluó la incidencia de IRA en una comunidad rural (2) y Cruz realizó la investigación ctiológica de IRA en una población urbano-marginal de la Ciudad de Guatemala (3).
Venenos y serpientes venenosas y ofidismo en Guatemala
Authors: Valdés de García A.M , Chuy S. , Lara O. , Torres P. , Escobedo C. , Ibarra G.
Published: February 2025

El accidente ofídico en Guatemala es causado principalmente por especies de la familia Viperidae. Los venenos de las serpientes pertenecientes a esta familia se caracterizan por provocar un pronunciado efecto letal constituido por dolor, edema, equimosis, flictemas hemorrágicos y necrosis tisular, lo cual con frecuencia provoca secuelas como pérdida de tejido o amputación de la extremidad afectada. La patogenia se ha atribuido al efecto miotóxico, acción hemorrágica, isquemia local resultante de la compresión y actividad proteolítica. 
 
Al igual en otras regiones del mundo, el accidente ofídico está prácticamente restringido a los trabajadores agrícolas y eventualmente cazadores y manipuladores de ofidios. La incidencia de mordeduras a través del año es variable y está relacionada con el tipo de actividad agrícola de cada región, siendo por lo general mayor durante la preparación de terrenos, recolección de cosechas y en la época lluviosa
 
La investigación consistió en las etapas siguientes:
 
1.1 Caracterización lexicológica de los venenos de las especies Bpthrpps aspee (barba amarilla), Bothrops nummifer (mano de piedra) y Crptalus dunssus durissus (cascabel).
 
1.2 Epidemiología de los accidentes ofídicos: Se realizó un estudio retrospectivo de 851 pacientes, en el período de 1988 a 1993 en seis departamentos de la republica, encontrándose que el 32.66% son causados por B. aspee, el 3.52% por Crptalus durissus durissus, 4.7 % por B. gpdmanii (cantil) y en el 58% no se identificó el agente causal.
 
1.3 Determinación del grado de conocimiento sobre el accidente ofídico por el personal médico. Se determino que sólo el 24.8 por ciento posee un nivel aceptable (Promedio de 1 4 sobre 30 puntos) . Se elaborar on guías para identificación de especie causal y tratamiento de la mordedura de ofidio.
Actividad antiinflamatoria de plantas medicinales de uso popular en Guatemala
Authors: Saravia Gómez Amarilis , Cáceres Armando
Published: February 2025

El presente estudio es realizado con el propósito de validar científicamente la actividad antiinflamatoria que popularmente se les atribuyen a algunas plantas de nuestro país. A partir de encuestas etnobotánicas y revisiones de literatura, se detectaron 83 plantas usadas para el tratamiento de afecciones que implican procesos inflamatorios.
 
La investigación sobre la actividad antiinflamatoria fue elegida debido a que los medicamentos utilizados para el tratamiento de procesos inflamatorios son de costo elevado. Este trabajo se realizará en varias fases. En la primera etapa se investigaron los antecedentes de cada una de las plantas, se recolectaron las muestras, las cuales fueron secadas en secadores solares, se determinó la especie botánica y se procedió a realizar el ensayo de antiinflamatorios utilizando un pletismómetro digital, ratas blancas de 1 50-170 g de peso, infusiones acuosas de las plantas, fenilbutazona como fármaco de referencia y la inflamación producida con una suspensión de caolín al 1% (1).
 
Los resultados de la primera fase indican que la corteza y las hojas de saúco a dosis de 750 y 1 000 mg/Kg, la flor de sanalotodo a dosis de 750 mg/Lg, la raíz de apacín a dosis de 750 mg/Kg poseen actividad antiinflamatoria.
 
Las infusiones de hojas y flores de pericón, corteza de palo jiote, hojas de apacm,hojas de achiote y flores de manita no presentan acitivdad antiinflamatoria a dosis de 750 y 1000 mg/Kg por la metodología utilizada.
 
Se determinó la toxicidad aguda de las plantas y como resultado del mismo, no se observaron efectos tóxicos de ninguna planta a dosis de hasta 10 g/Kg de peso.
 
En la segunda fase los resultados obtenidos demostraron que los extractos etéreo, etanólico y acuoso de la flor de sanalotodo y hojas de morro a dosis de 1 0, 20, 40, 80, 1 60 y 320 mg/Kg de peso no presentan efectos tóxicos en los ratones.
 
Debido al alto costo de los medicamentos es importante continuar con la validación de las plantas medicinales utilizadas por la población guatemalteca en el tratamiento de procesos inflamatorios.
Effect of Materials on the Mechanical Properties of Fused Deposition Modeling Three-Dimensional Printed Products
Authors: Duy Phu Nguyen  , Tu San Tran  , Hai Yen Tran  , Ngoc Phung Nguyen  , Thong Minh Vo  , Thi Hong Nga Pham  , Vinh Tien Nguyen  , Thanh Tan Nguyen
Published: February 2025

This study evaluates the three-dimensional (3D) printing materials used in Fused Deposition Modeling (FDM) printing technology. 3D printing technology has been developing strongly, becoming an effective support tool in production and research. The 3D printing process involves many stages, with many parameters affecting the quality and properties of the product, in which 3D printing material is one of many essential factors affecting that process. The study conducts a comprehensive assessment of the most common materials in 3D printing technology to determine the advantages and limitations of precisely five types of materials: Polylactic acid, acrylonitrile butadiene styrene, polyethylene terephthalate glycol-modified, thermoplastic polyurethane, and acrylonitrile styrene acrylate. With 3D printing, parameters such as sintering temperature, printing speed, and layer thickness are kept constant. These parameters are applied equally to all five material samples. The experiment evaluates the tensile strength of materials. The study results provide an overview of the properties and applicability of 3D printing materials, helping to select materials suitable for specific FDM 3D printing technology applications.
Đổi Mới Đào Tạo Ngành Thiết Kế Trang Sức Việt Nam trong Thời Đại 5.0
Authors: Vuong Bich Tuu Do
Published: February 2025

Thời đại 5.0 được mệnh danh là thời đại của kỷ nguyên công nghệ, của xã hội siêu thông minh. Nâng cao chất lượng đào tạo ngành thiết kế trang sức Việt Nam trong bối cảnh phát triển mạnh mẽ của công nghệ là đối tượng và phạm vi nghiên cứu. Cần làm gì để nâng cao chất lượng đào tạo ngành nghề này trong tương lai là mục tiêu của nghiên cứu. Bài viết sử dụng cách tiếp cận liên ngành, phương pháp nghiên cứu phân tích tài liệu để có cái nhìn tổng hợp hơn về đề tài. Kết quả nghiên cứu cho thấy thời đại kỹ thuật số đã mang lại những cơ hội to lớn cho việc đổi mới tư duy đào tạo, từ đầu tư phương pháp giảng dạy đến nâng cao khả năng sáng tạo cho sinh viên trong ngành thiết kế trang sức. Những điều trên tạo ra các cơ hội phát triển ngành nghề nhưng cũng có không ít thách thức trong việc đổi mới đào tạo nhằm theo kịp xu thế của thời đại. Để nâng cao chất lượng đào tạo, bài viết đã đưa ra các giải pháp giúp các cơ sở đào tạo cân bằng giữa việc duy trì các kỹ thuật chế tác truyền thống và tận dụng tối đa sự tiến bộ của công nghệ hiện đại, đồng thời vẫn phải đảm bảo học viên có được những kỹ năng làm việc cần thiết của một nhà thiết kế trong kỷ nguyên mới.
Thực Trạng Trình Độ và Nhu Cầu Nâng Cao Trình Độ của Giảng Viên cho Đào Tạo Ngành Cơ Khí - Tự Động Hoá, Trình Độ Quốc Tế tại Việt Nam
Authors: Kim Oanh Duong Thi  , Hieu Giang Le  , Dieu Hien Dang Thi
Published: February 2025

Đào tạo nguồn nhân lực chất lượng cao cho các lĩnh vực ngành nghề trong bối cảnh hội nhập quốc tế và cuộc cách mạng công nghiệp 4.0 đòi hỏi cần có các nhà giáo đáp ứng yêu cầu về trình độ chuyên môn và ngoại ngữ. Để đào tạo nguồn nhân lực trình độ quốc tế ngành Cơ khí - Tự động hoá, giảng viên ngành Cơ khí, Tự động hóa và các ngành gần với ngành Cơ khí, Tự động hoá cần đáp ứng những yêu cầu về trình độ chuyên môn và ngoại ngữ. Tuy nhiên, các nghiên cứu về trình độ giảng viên các ngành học nêu trên còn là khoảng trống tại Việt Nam. Nghiên cứu này nhằm xác định thực trạng trình độ và nhu cầu nâng cao trình độ của giảng viên ngành Cơ khí, Tự động hóa và các ngành gần với ngành Cơ khí, Tự động hoá. Nghiên cứu này sử dụng phương pháp khảo sát bằng bảng hỏi để thu thập dữ liệu từ 134 giảng viên, 1184 sinh viên của 9 trường đại học công lập có đào tạo ngành Cơ khí, Tự động hoá và các ngành gần với ngành Cơ khí, Tự động hoá và 159 cựu sinh viên đã tốt nghiệp ngành học đã nêu tại Việt Nam. Kết quả khảo sát cho thấy, trình độ của giảng viên ngành Cơ khí, Tự động hóa và các ngành gần với ngành Cơ khí, Tự động hoá cao hơn mức trung bình chung của cả nước; hơn ¾ giảng viên được đánh giá ở mức đáp ứng và hoàn toàn đáp ứng các yêu cầu đào tạo ngành Cơ khí - Tự động hoá trong bối cảnh hội nhập quốc tế và công nghiệp 4.0. Các giảng viên ngành Cơ khí, Tự động hoá và các ngành gần với ngành Cơ khí, Tự động hoá có nhu cầu cao về nâng cao học vị, học hàm, chức danh nghề nghiệp, kiến thức và kỹ năng chuyên môn, trình độ ngoại ngữ, các kỹ năng bổ trợ cho hoạt động giảng dạy và nghiên cứu khoa học.
DIAGRAMA DE IDENTIFICAÇÃO DE DESPERDÍCIOS: UMA PROPOSTA DE MELHORIA PARA AS ATIVIDADES DE CAMPO DO PROGRAMA LIRAA (LEVANTAMENTO RÁPIDO DE ÍNDICES PARA AEDES AEGYPTI) APLICADO NA ZONA NORTE DE MANAUS
Authors: Santana Polyana da Silva , Nogueira Ricardo Jorge da Cunha Costa , Oliveira Marcelo Albuquerque de
Published: February 2025

Tendo como motivação o aumento dos casos de dengue na cidade de Manaus, nesta pesquisa buscou-se a formulação de estratégias para a otimização do Levantamento Rápido de Índices para Aedes Aegypti (LIRAa). No campo metodológico, adotou-se a pesquisa documental para aprofundamento nas premissas do programa, a observação direta para construção do fluxo das atividades e a entrevista semiestruturada com os Agentes do Disa-Norte para identificação de oportunidades de melhoria. Com os resultados gerados, possível compreender que, apesar de outras capitais aplicarem o programa quatro vezes ao ano, estas não possuem os mesmos desafios da cidade de Manaus, que atualmente o realiza semestralmente. Aplicando a ferramenta Diagrama de Identificicação de Desperdícios (WID) obteve-se como produto a identificação de melhorias que, se implantadas, oportunizariam a otimização do programa. Por fim, fica registrado neste trabalho para fins de consulta a aplicação da metodologia Lean fora do ambiente industrial, propostas para otimização de recursos públicos e a apresentação do Agente de Saúde como figura primordial no atendimento às necessidades básicas da população.
ATLETISMO NAS AULAS DE EDUCAÇÃO FÍSICA: EXPERIÊNCIA EXITOSA NA POPULARIZAÇÃO DA MODALIDADE NA ESCOLA
Authors: Moura Adriana Karlla Ferreira , Aguiar Karla Dayanne Braga Abreu , Batalha Tyciana Vasconcelos , Silva Keyne Conceição Marques , Batalha Gabriel Vasconcelos , Langaro Katia Gisele de Oliveira , Martins Vanessa Santos , Sousa Ana Sílvia Rodrigues de , Silva Ricardo Vituriano da
Published: February 2025

O presente trabalho propõe a aplicação do conteúdo do atletismo nas aulas teóricas dos estudantes do 1º ano do Ensino Médio do IFMA Campus São Luís Maracanã, visando ampliar os conhecimentos destes estudantes em relação à modalidade, ainda não tão explorada pelas escolas. Objetiva-se investigar se os estudantes que chegam ao Ensino Médio experimentaram a prática do atletismo nas séries do Ensino Fundamental, com o propósito de dar continuidade nesse processo ou dar início à apresentação da modalidade, com o intuito de popularizá-la na escola e oportunizar essa vivência do desporto escolar. O processo metodológico adotado foi a aplicação de aulas teóricas e práticas do atletismo (histórico, regras, provas e a competição) nos conteúdos da Educação física, seguindo os princípios da iniciação esportiva dentro dos parâmetros do atletismo na escola. Obteve-se como resultado expressivo desse trabalho o surgimento do interesse pela modalidade por parte dos estudantes, novos desafios para os discentes em realizarem atividades diferentes do cotidiano vivido, oportunidades de identificação de seus potenciais com a modalidade e a divulgação da modalidade em questão no âmbito do desporto escolar. Conclui-se que ao conhecerem a modalidade, estreitam-se as relações entre estudantes e os esportes dentro do ambiente escolar, aumentam a motivação dos professores em utilizar-se de ferramentas e/ou estratégias de aprendizagem para eliminar o ócio e garantir interesse nas aulas de educação física com o desafio de experimentar uma nova (ou não tão usual) modalidade.
A successful low dose spinal anesthesia in a patient with severe mitral valve stenosis for partial hip replacement surgery: A case report
Authors: Nguyen Duy Anh , Tran Dac Tiep , Nguyen Ngoc Thach , Nguyen Tien Duc
Published: February 2025

Anesthesia for patients with mitral valve stenosis presents a great challenge for anesthesiologists. The choice of spinal anesthesia or general anesthesia for these patients is still controversial, each method has its own advantages and disadvantages. We describe the anaesthetic management for a 73-year-old female patient with a left closed intertrochanteric fracture of the femur with many concomitant diseases: atrial fibrillation, severe mitral valve stenosis, and previous cerebral stroke. The patient had successful partial hip replacement surgery under spinal anesthesia. In the preoperative period, the patient had no difficulty breathing, no chest pain, echocardiography showed severe mitral stenosis due to rheumatism with valve orifice area 0.9 cm2, left atrial enlargement, systolic pulmonary artery pressure 46 mmHg, normal ejection fraction 59% and electrocardiogram showed atrial fibrillation with ventricular response of 93 beats/minute. Left partial hip replacement surgery was successfully performed under spinal anesthesia using 5 mg 0.5% hyperbaric bupivacaine. Loss of sensation reaching the umbilicus provides adequate anesthesia for the surgery. The patient recovered without any complications and was discharged on the 14th day after surgery.
Application of distally based anterolateral thigh flap in a knee soft-tissue defect reconstruction (Case report)
Authors: Tong Thanh Hai , Do Trung Quyet , Nguyen Ngoc Chiu , Cao Trung Kien , Vu Quang Vinh
Published: February 2025

Bone-exposed knee defects are a challenge for surgeons in choosing an appropriate reconstruction method. Distally based anterolateral thigh flap is a top option due to its texture and color which are quite similar to the knee region, its large size, and its sufficiently long pedicle. We report a clinical case of using a distally based anterolateral thigh flap in the reconstruction of a large soft tissue defect around the knee with exposed patella due to high-voltage electrical burns. The outcome is complete flap survival and good functional recovery, the flap donor site is covered by a split-skin graft, which heals during the early stages of healing.
Septic shock with dermatitis and necrotizing myositis due to Vibrio vulnificus infection (Case report)
Authors: Trinh Van Thong , Tran Van Thanh , Nguyen Ngoc Son , Nguyen Viet Thanh , Hoang Van Chau
Published: February 2025

Vibrio vulnificus (V. vulnificus) is a gram-negative bacterium that can cause serious, potentially fatal infections. V. vulnificus causes three distinct syndromes: Overwhelming primary septicemia caused by consuming contaminated seafood, wound infections acquired when an open wound is exposed to contaminated warm seawater, and gastrointestinal tract-limited infections. Case-fatality rates are higher than 50% for primary septicemia, and death typically occurs within 72 hours of hospitalization. Risk factors for V. vulnificus infection include chronic liver disease, alcoholism, and hematological disorders. When V. vulnificus infection is suspected, appropriate antibiotic treatment and surgical interventions should be performed immediately. Third-generation cephalosporin with doxycycline, or quinolone with or without third-generation cephalosporin, may be potential treatment options for patients with V. vulnificus infection.
Innovations in Wildfire and Smoke Detection: A Comprehensive Survey
Authors:   College of Engineering Kidangoor, Kottayam, Kerala, India, Thomas3 Deepa Mariam
Published: February 2025

Wildfires are a growing threat due to climate change, causing significant damage to ecosystems, property, and human lives. Effective detection systems are critical for prompt intervention and damage mitigation. This survey explores advances in fire and smoke detection, emphasizing the role of machine learning and computer vision techniques such as Convolutional Neural Networks (CNNs) and YOLO object detection models. Recent approaches leverage multi-source data, including satellite imagery, drone feeds, and ground sensors, to enhance detection accuracy and scalability. Key contributions include lightweight models such as FireNet for IoT applications, real-time smoke detection frameworks, and hybrid systems integrating traditional and AI-based techniques. Despite notable progress, challenges remain, such as false positives, environmental variability, and computational limitations in resource-constrained environments. This paper reviews these advancements, evaluates their limitations, and identifies promising research directions for developing robust and scalable wildfire detection systems.

Key Words

Wildfire Detection, Smoke Detection, Machine Learning, Deep Learning, CNN, YOLO, Disaster Management, IoT, Remote Sensing
Strategies for Enhancing Productivity in the Stitching Department of the Footwear Industry: Challenges and Impacts
Authors:   Footwear Design & Development Institute  (An “Institution of National Importance” as per FDDI Act, 2017  Under Ministry of Commerce & Industry, Govt. of India)  Puraposher Road near Ram Tekari. Guna M.P.-473001., Tripathi Varun
Published: February 2025

The stitching department plays a crucial role in footwear manufacturing, directly impacting product quality, production efficiency, and overall profitability. However, challenges such as skill gaps, inconsistent material quality, machine downtime, and inefficient workflow often hinder productivity. This study explores effective strategies to enhance productivity in the stitching department, including workforce training, lean manufacturing techniques, automation, ergonomic improvements, and real-time quality control measures. The research also examines the impact of these strategies on production efficiency, defect rates, and cost-effectiveness. By implementing optimized stitching processes, footwear manufacturers can achieve higher output, improved quality standards, and greater operational efficiency, ultimately strengthening their competitiveness in the global market.

Keywords: Footwear manufacturing, stitching department, productivity enhancement, lean manufacturing, automation in footwear production
Case Study on Cow Dung
Authors:   1Department of Structural & Medicaps, Rawal1 Rishi
Published: February 2025

- Cow Dung is the most important source of bio-fertilizer and is used for energy production in many developing countries. It is a very effective alternative to chemical fertilizers, which in the long-term increases’ productivity, maintains soil health and increases microbial populations. Cow dung and compost increase soil organic matter, which improves water infiltration and water retention and increases cation exchange capacity. It is one of the renewable and sustainable energy sources through manure or biogas, which replaces the dependence on charcoal, firewood, firewood and fossil fuels, etc. In addition, proper and economical use of cow dung can also increase crop productivity also reduces the probability of pathogenic bacterial and fungal diseases. Therefore, improper use of cow dung should be stopped and used as organic fertilizer to maintain a productive and sustainable agricultural system. Introduction: Cow dung is the main source of bio fertilizer, but at the same time, cow urine, cow horn and cow body can be used to make effective bio fertilizer. Animals can play an important role in energy production, either in a negative way, where livestock farming contributes to the loss of forests in large parts of the forest area, or in a positive way, for example by changing the energy of plants into useful work. or providing manure for fuel through manure cakes. or biogas to replace charcoal, firewood, firewood, etc. Most livestock production in mixed farming systems comes from animals fed on local resources such as pasture, crop residues, forage trees and shrubs. We practiced agriculture and farming according to the traditional, ancient system, when manure was, among other things, cow dung. In agriculture, there are various products made from cow dung and cow urine that can be used as fertilizer and pest control, respectively. These products are very popular and are used every day. Low soil fertility is one of the most important biophysical constraints to agroforestry crop production worldwide (Ajayi, 2007).

Key Words: Cow Dung, Compost, Biogas, Vermicompost
Organizational prerequisites for the transition of companies towards a green economy
Authors: KRASIN Miren
Published: February 2025

The idea of an environmentally friendly, competitive, and green economy as a path to achieving sustainable development and rational use of resources is an important strategic measure of the EU. To implement this transition, organizations must have the necessary capacity for this purpose. Its creation and implementation are determined by numerous factors and certain organizational characteristics that they must possess to gradually build. Only in this way can the activities for the creation and use of “green” practices be guaranteed. The article aims to reveal the essence of the green economy approach and its characteristics in the context of sustainable development. In addition, it aims to determine and indicate the necessary prerequisites for building the required capacity of organizations to create conditions and attitudes for implementing this green transition. The method proposed and used by the author for studying and presenting dependencies and interrelationships favors the development of current and practically applicable solutions for the effective organization of work in companies to fulfill the tasks set in this direction.
Study of water quality and water quality status using pollutant index in Sebenaq River, Mahakam Ulu Regency, East Kalimantan
Authors: Ricard Romoldus Jonius , Gunawan Rahmat , Kartika Rudi
Published: February 2025

Mahakam Ulu Regency is a regency located in the upper reaches of the Mahakam River. The Mahakam River in Mahakam Ulu Regency consists of several tributaries, one of which is the Sebenaq River, located in the capital city of Mahakam Ulu Regency. The Sebenaq River is used by the local community to meet the need for clean water because PDAM is not yet available and is also used as a means of transportation. The Sebenaq River flows through the central office area of the Mahakam Ulu Regency Government, main roads, and residential areas. Along with the development of Ujoh Bilang Village as the center of the capital city of Mahakam Ulu Regency and the use of Sebenaq River water by the surrounding community, it is deemed necessary to conduct research related to the water quality and quality status of the Sebenaq River. This study aims to provide data on water quality and quality status of the Sebenaq River to be used by related parties in the management and utilization of the Sebenaq River in the future. The locations for water sampling, river cross-section profile data collection, and in-situ parameter testing are Station I (Upstream of Sebenaq River), Station II (Tributary of Sebenaq River), Station III (Sebenaq River Crossing Road 1), Station IV (Sebenaq River Crossing Road 2), and Station V (Downstream of Sebenaq River). Based on the results of the calculation of the determination of water quality status using the Pollutant Index method with class I quality standards according to Government Regulation No. 22 of 2021, the water quality status of the Sebenaq River is classified as lightly polluted, with details of Station I (Upstream of the Sebenaq River) having a score of 3.795 indicating lightly polluted conditions, Station II (Sebenaq River Tributary) with a score of 2.781 indicating lightly polluted conditions, Station III (Sebenaq River Crossing Road 1) with a score of 2.361 indicating lightly polluted conditions, Station IV (Sebenaq River Crossing Road 2) with a score of 2.878 indicating lightly polluted conditions, and Station V (Downstream of the Sebenaq River) with a score of 2.327 indicating lightly polluted conditions.
Effect of graphene, silicon, and silver doping on the mechanical and structural properties of advanced epoxy composites
Authors: Abdulnabi Duha M. , Adhel A.F. Essa, Abbas F
Published: February 2025

In this study, the effect of incorporating graphene, silicon, and silver nanoparticles into epoxy composites was investigated to enhance their mechanical and structural properties. The research examined various combinations of these materials, including pure epoxy, epoxy/graphene (0.1 wt.%), epoxy/graphene/Si/Ag (0.1-1 wt.%), and epoxy/Si/Ag (0.1-1 wt.%) composites. The structural characteristics were analyzed using XRD and FE-SEM techniques, while mechanical properties were evaluated through tensile testing. Results showed that the addition of graphene significantly improved the crystallinity and structural organization of the composites. The optimal results were achieved in the ternary system (epoxy/graphene/Si/Ag) with 1 wt.% Si +Ag content, showing an enhanced elastic modulus of 0.30 kN/mm² compared to pure epoxy (0.23 kN/mm²). FE-SEM analysis revealed that graphene helped create a uniform network structure that effectively distributed the Si and Ag particles throughout the matrix, leading to improved mechanical performance.
Developing a model of landscape elements in residential open spaces effective on social resilience (Comparative study of Basmayeh & Haifa residential open spaces in Baghdad, Iraq)
Authors: Alboadam Hasan Shakir , KhakZand Mehdi
Published: February 2025

This study explores the role of landscape elements in residential open spaces and their impact on fostering social resilience. By comparing Basmayeh, a modern planned community, and Haifa, an area characterized by vernacular architecture in Baghdad, Iraq, the research aims to develop a model of effective landscape design. Using surveys, field observations, and community feedback, the study examines how design elements influence social interaction, mental well-being, inclusivity, and community identity. Results show that modern open spaces prioritize recreation and aesthetics, while vernacular spaces emphasize social cohesion and cultural heritage. The study concludes with a hybrid model integrating the strengths of both contexts to create inclusive, resilient residential open spaces. Recommendations include adopting context-sensitive designs, enhancing accessibility, and promoting community participation in the design process.
The impact of consumer perceptions of product quality on green product purchase decisions: A cross-sectional study in Saudi Arabia
Authors: Alsiehemy Ali Mohammed A
Published: February 2025

This study explores the impact of consumer perceptions of product quality on green product purchasing decisions in Saudi Arabia. With growing environmental concerns, green consumerism has gained importance as customers increasingly shift towards eco-friendly alternatives. However, perceptions that green products are expensive or of lower quality often impede their acceptance. This research examines how quality perceptions, environmental awareness, and consumer preferences influence both purchase and repurchase intentions. A cross-sectional survey of 135 participants (52.6% male, 47.4% female) was conducted through an online questionnaire, and the data were analyzed using SPSS to assess the relationships between product quality perceptions, purchasing behavior, and demographic factors. The findings reveal that positive perceptions of product quality significantly enhance purchase intentions, while environmental considerations and personal preferences also play critical roles in decision-making. This study offers valuable insights for businesses and policymakers, helping them develop strategies to address consumer concerns and promote sustainable consumption, aligning with Saudi Arabia’s Vision 2030 goals.
Bearing fault diagnosis in high noise environment using multi-scale processing, channel-attention and feature-enhanced convolutional neural network model
Authors: Xiuyu Li , Anjong Shirley J. T
Published: February 2025

This paper presents a model using deep learning techniques which includes Multi-scale processing, Channel attention, Feature enhancement, and anomaly Classification layers, referred to as MCFCNN, for bearing fault diagnosis in noisy industrial environments. The MCFCNN network combines multi-channel parallel convolution, effectively capturing spatial information, and introduces channel attention mechanisms to adaptively recalibrate channel-level feature responses. Secondary neurons are introduced to enhance the model’s ability to capture complex nonlinear patterns related to bearing faults. The model was tested and compared to other models using a publicly available data set. In a simulated high-noise environment, the proposed model outperforms existing models in fault diagnosis, with accuracy greater than 80% even at high signal-to-noise (SNR) ratio. At SNR = -6, the MCFCNN records higher accuracy (83%), precision (89%), and recall rates (84.5%) as compared to prior models. The proposed model can be integrated into the maintenance management system to enhance bearing health assessment and prediction, improving machine prognostics.
Effect of Bi-doped on structural, morphological, and electrical properties of Sb₂O₃ nanostructured thin films for solar cells applications
Authors: Hussien Mustafa K. , Khodair Ziad T. , Kamil Asaad A. , Salman Sabah A.
Published: February 2025

Undoped and Bi-doped Sb₂O₃ nanostructured thin films (3%, 5%, 7%, 9%) were prepared by chemical spray pyrolysis on glass substrates at 350°C. XRD confirmed polycrystalline cubic structure with (111) orientation, while FE-SEM revealed doping effects on surface morphology. investigation revealed that film surfaces had a cubic-like nanostructure. The results of the electrical properties showed that, depending on the Hall effect, that p-type nature of all thin films. Solar cells with the composition (Sb2O3/n-Si), which contains a layer of Sb2O3 undoped and doped with Bi at a ratio of 9%, were prepared and investigated in dark and lighting conditions at room temperature for the heterojunction. The obtained results demonstrated that the value of the reverse current of the heterojunction (doped and undoped- Sb2O3/n-Si) under illumination at a specific voltage is higher than that in the dark. This study aims to synthesis undoped Sb2O3 films and doped with bismuth (Bi) at different ratios (3, 5, 7, and 9%) using the chemical spray pyrolysis technique and study structural, and electrical properties to get the optimum condition for fabricating solar cells  and study its characteristics of the photovoltaic measurements (ISC, VOC, FF, h).
Radiation shielding properties of xPbF2−20Na2O−10CaO−(70−x) B2O3 glass system
Authors: Esmail Abdalla A.S. , M.M Kassab , M.M Radwan , M A. Abd-Latif
Published: February 2025

The influence of PbF2 incorporation on the physical and radiation shielding properties of six glass samples, labeled BPbF0 to BPbF25, was investigated. These samples have a composition of xPbF2−20Na2O−10CaO−(70−x) B2O3 where (0≤x≤25 in 5 mol.% increments). The physical parameters, including density and molar volume, were calculated. As PbF2 content increased, the density rose significantly from 2.476 g/cm³ to 4.077 g/cm³, attributed to the substitution of low molecular weight B2O3 with high molecular weight PbF2. Similarly, the molar volume increased from 26.95 cm³/mol to 27.138 cm³/mol, indicating the formation of non-bridging oxygen atoms and the expansion of the glass network. X-ray diffraction (XRD) analysis confirmed the amorphous nature of the samples, as no crystalline peaks were observed. Gamma radiation shielding parameters were theoretically evaluated using Phys-X/PSD software. The mass attenuation coefficient (MAC) and linear attenuation coefficient (LAC) were found to increase with higher PbF2 content at a given energy. Both coefficients decreased linearly between 0.015 and 0.08 MeV with increasing energy, remained nearly constant in the range of 1 to 3 MeV due to Compton scattering, and increased gradually beyond 3 MeV due to pair production. The half-value layer (HVL) and mean free path (MFP) decreased as PbF2 content increased, reflecting improved shielding efficiency. Furthermore, the effective atomic number (Zeff) and effective neutron density (Neff) also increased with higher PbF2 content. Compared to commercial glasses like RS-360 and various concretes, the prepared glass system demonstrated superior gamma-ray shielding properties. These findings suggest that the developed glass system is highly effective for gamma radiation shielding applications.
Nguyen dynasty's implementation of international responsibility in the South China Sea (1802 - 1884)
Authors: Phuong Nguyen Duy
Published: February 2025

The South China Sea is one of the largest seas in the world. Vietnam owns up to 30% of the area of this sea. The Nguyen Dynasty unified the country and managed a large territory not only on land but also extending into the South China Sea in the 19th century. Inheriting the previous dynasties’ sea and island organization and management experience, the Nguyen Dynasty not only focused on protecting the national sovereignty of seas and islands but also demonstrated its increasing international responsibility. Having reviewed ancient documents, especially the Imperial Records of the Nguyen Dynasty (Châu bản Triều Nguyễn), and built upon the research achievements of domestic and foreign authors, while simultaneously applying two main historical research methods (historical and logical methods) along with other methods (systematic, analytical, synthetic, and comparative methods), the article focuses on analyzing and objectively evaluating the actions that demonstrate the international responsibility of this dynasty for peace and maritime safety in the South China Sea. In addition, it also shows that the Nguyen Dynasty made significant efforts in addressing maritime security challenges with many countries in the region and the world, as well as the relationship between national interests and international interests at that time.
Correlation of Sit-to-Stand Test and 6-Minute Walk Test to Illustrate Cardiorespiratory Fitness in Systolic Heart Failure Patients
Authors: Triangto Ivan , Dhamayanti Aulia Syavitri , Putra Made Suariastawa , Witjaksono Djoko , Rahmad  , Zuhriyah Lilik , Waranugraha Yoga
Published: February 2025

Objective: To prove 5-time sit-to-stand (5-STS) and 30-second sit-to-stand (30sSTS) tests in assessing cardiorespiratory fitness in chronic heart failure (HF) patients with systolic dysfunction. Alternative tests, such as 5-STS and 30sSTS, may be used to assess cardiorespiratory fitness in patients with HF but have not been thoroughly evaluated. Thus, this study aimed to prove 5-STS and 30sSTS tests in assessing cardiorespiratory fitness in chronic HF patients with systolic dysfunction.Methods: A cross-sectional study was done, evaluating chronic HF patients with systolic dysfunction that have received optimal guideline directed medical treatment for at least 3 months. All patients underwent the same intervention on the same day, starting with an initial 5-STS test, followed by a 30sSTS, and a 6-minute walk test (6MWT).Results: A total of 34 patients were enrolled in this study. The median left ventricular ejection fraction was 44% (interquartile range=34%–48%). Mean values of 5-STS, 30sSTS, and 6MWT were 13.90±4.72, 13.29±3.38, and 463.65±87.04, respectively. 5-STS showed moderate correlation with 6MWT (r=-0.436, p=0.01). However, the 30sSTS revealed strong correlation with 6MWT (r=0.629, p<0.001).Conclusion: The 30sSTS test had strong correlation with 6MWT. It could be used to illustrate cardiorespiratory fitness in chronic HF patients with systolic dysfunction.
Perencanaan Kantor Dakwah: Adaptasi Framework Manajemen pada Konteks Organisasi Dakwah
Authors: Sumardianto Erdin
Published: February 2025

Perencanaan adalah salah satu fungsi manajemen yang sangat penting kedudukannya bagi organisasi dakwah, salah satunya dalam merencanakan kantor dakwahnya. Namun persoalannya, framework perencanaan konvensional berpijak dari realitas organisasi bisnis yang sangat berbeda karakteristiknya dengan organisasi dakwah, termasuk dalam mengelola kantor sebagai basis kegiatannya. Maka dibutuhkan sebuah adaptasi framework perencanaan agar kompatibel dengan kebutuhan manajemen kantor dakwah. Kajian ini bertujuan untuk mengadaptasikan framework perencanaan konvensional agar dapat diaplikasikan dalam perencanaan kantor dakwah. Pendekatan yang digunakan adalah kualitatif dan merupakan kajian konseptual (conceptual approach) dengan menggunakan pendekatan adaptasi teori (theory adaptation). Data bersumber dari pustaka mengenai variabel konsep perencanaan dan kantor dakwah. Hasil adaptasi framework perencanaan adalah: Pertama, perumusan tujuan/sasaran harus disesuaikan dengan jenis dan karakteristik kantor dakwah yang bersifat supporting atau mendukung ketercapaian tujuan makro organisasi dakwah. Kedua, pemetaan faktor strategis kantor dakwah menyesuaikan dengan karakteristiknya yang lebih spesifik dibandingkan faktor strategis organisasi secara makro, meliputi aspek fisik dan non fisik kantor dari lingkungan internal maupun eksternal. Ketiga, perumusan strategi dan rencana implementasi strategi kantor dakwah difokuskan pada pengaturan aspek fisik (bangunan, ruangan, dan sarana) dan non fisik kantor dakwah (budaya organisasi, penanaman nilai dakwah, dan pengondisian Islami).
The effect of swimming learning aids on swimming learning outcomes for children aged 6-8 years
Authors: Iqbal Muhammad , Prakoso Bayu Budi , Hartoto Setiyo , Khory Fifukha Dwi
Published: February 2025

Research Problems: Swimming learning in Indonesia, especially in schools, still faces many obstacles that must be considered. The problem that often occurs is the limited availability of adequate facilities. Many educators or trainers complain about the existing facilities, especially in rural areas. Research Objectives: This research aims to utilize assistive devices for swimming learning outcomes in children aged 6-8 years. Method: This research uses an experimental research method with a One Group Pretest-Posttest Design research design. The population used was all 50 children who took part in Club Aquaspint. Sampling used a purposive sampling technique and obtained a sample of 17 children. The research instrument was carried out by observation. Data analysis uses descriptive statistics which includes descriptive data analysis, normality test, homogeneity test, and hypothesis test. Results: The results of the pretest descriptive statistical data analysis obtained a mean value of 8.29, while the post-test obtained a mean value of 11.24. The results of the pretest and post-test hypothesis tests on Equal variances assumed obtained a tcount value of 7.773 > ttable value of 2.131 or a significance value (2-tailed) of 0.000 < 0.05, so Ha was accepted, and Ho was rejected. Conclusion: It can be concluded that there is an influence of swimming learning aids on the swimming learning outcomes of children aged 6-8 years. The limitation that researchers found was that this study only involved 17 children aged 6-8 years, so the results cannot be applied to children outside that age range.