Buscador de Tesis y publicaciones académicas

Non-local free vibration spectra of nanostructures

Fernando Ramirez · Arturo Rodriguez-Herrera · Paul R Heyliger

Abstract Frequency spectra of free standing, traction free sphere- and cube-shaped Si, C, and Ge nanoparticles are investigated using both local and non-local elasticity theories. Different particle sizes, internal material lengths, internal-material-length to particle-size ratios, and weighting factors, are considered...

Tracheal Actinomycosis Presenting as a Pseudotumor: A Case Report

Velásquez-Salazar, Marcela · Aguilar Díaz, Carlos Darío

Actinomycosis is a rare infection that can easily be confused with a neoplasm when it forms mass-like lesions. We report the case of a 21-year-old male patient who presented with dyspnea, cough, and stridor. Imaging studies revealed a tracheal mass obstructing the airway. Bronchoscopy confirmed the presence of the mass...

ESTRATIFICAÇÃO DE RISCO EM SÍNDROMES BILIOPANCREÁTICAS AGUDAS: CRITÉRIOS CLÍNICO-CIRÚRGICOS PARA INTERVENÇÃO PRECOCE

Arboleda, Nicolás López · Vergara, Miguel Camilo Perilla · Ramírez, Alicia Petroff · Ordóñez, Ivonne Stephanie Rodríguez

As síndromes biliopancreáticas agudas constituem um conjunto de condições clínicas de elevada relevância na urgência cirúrgica e gastroenterológica, incluindo colecistite aguda, colangite aguda, coledocolitíase complicada e pancreatite aguda biliar. A apresentação clínica pode variar desde quadros leves e autolimitados...

¿Presencial o virtual? Percepciones sobre modalidad educativa durante la COVID-19: revisión de alcance 2020-2025

Cárcamo-Berrío, Orlando de Jesús · Vera Mercado, Erik José · Moscoso-Barrera, William Daniel

Analizar y sintetizar la evidencia empírica publicada entre 2020 y 2025 sobre las percepciones de estudiantes y docentes respecto a las modalidades educativa presencial y virtual levadas a cabo durante la pandemia de COVID-19, mediante una revisión de alcance internacional siguiendo los lineamientos metodológicos para...

Correction: Duration of early empirical antibiotic exposure in very low birth weight infants with suspected early-onset sepsis and associated factors: a retrospective cohort study

Morales-Betancourt, Catalina · Canales-Siguero, Maria Dolores · Fernández-Gaitán, Marta · Montealegre-Pomar, Adriana · y 4 más

Caravan-COL: A Large-Sample Hydrology Dataset for Colombia

Jimenez Osorio, David Antonio · Meneses E, Julian · Solha, Pedro H. Bernardes · Avila Diaz, Alvaro Javier · y 3 más

Caravan is an open community dataset that provides standardized meteorological forcing data, catchment attributes, and streamflow records for catchments worldwide: https://zenodo.org/record/6578598. We used the publicly available Caravan workflow to derive meteorological forcing data and catchment attributes from globa...

Historia de una curandera

Araújo-Zúñiga, Heygui Tifany

Starch Extraction from Rejected Solanum tuberosum L. Optimized by Box–Behnken Design: Enzymatic and UV-Vis Spectrophotometric Quantification

Leidy Valentina Olaya Bocanegra · Karoll Stefany Gómez Triana · Diana Angélica Varela-Martínez · Lady Dayana Barajas Gómez

Industrial potato processing generates substantial rejected-tuber streams that are rarely valorized. This study optimized wet-process starch extraction from rejected Solanum tuberosum L. (Pastusa variety) sourced from a Colombian snack processor (Comestibles Ricos S.A., Super Ricas, Bogotá), using a Box–Behnken design...

AVANÇOS EM CIRURGIA MINIMAMENTE INVASIVA: IMPACTOS NA RECUPERAÇÃO PÓS-OPERATÓRIA E NA SEGURANÇA DO PACIENTE

Rodríguez, Cheyly Manuela Lora · Saavedra, Jesús Andrés Montaño · Navarro, Valery Camila Lozano

A cirurgia minimamente invasiva representa uma das transformações mais relevantes da prática cirúrgica contemporânea, ao substituir, em múltiplas especialidades, grandes incisões e ampla exposição anatômica por abordagens realizadas por pequenas incisões, acesso endoscópico, laparoscopia, toracoscopia, artroscopia, cir...

The Association Between Human–AI Interaction and Leadership: A Structural Equation Modeling Analysis in Colombian Organizations

Rodrigo Arturo Zarate-Torres · C. Fabiola Rey-Sarmiento · Julio Cesar Acosta-Prado · Alvaro Moncada-Niño

Artificial Intelligence (AI) has evolved from a tool for automation into a strategic component of organizational decision-making. However, the extent to which the dimensions of Human–AI Interaction are associated with leadership remains underexplored, particularly in emerging economies. This study examines how interact...