Buscador de Tesis y publicaciones académicas

A Severity Threshold for Frictional Stability in ZrB2SiC/ZrO2 Coatings: Implications for Tool Life in Titanium Machining

Willian Aperador · Giovany Orozco-Hernández · Julio Cesar Caicedo

Ultra-high-temperature ceramic (UHTC) coatings offer a promising route to extending cutting tool service life under severe conditions. This work evaluates the tribological behaviour and wear regime transitions of ZrB2–SiC/ZrO2 coatings, deposited by physical vapour deposition (PVD) onto ASSAB-17 high-speed steel tool b...

Scaling Professional Development with a Diverse Early Childhood Workforce

Carolina Maldonado-Carreño · Olga Lucía Gonzalez-Beltrán · Eduardo Escallón · Laura Rojas · y 3 más

This qualitative phenomenological study examines how CDI teachers and community mothers in Colombia experienced the implementation of a professional development program structured as a cascade model. Semi-structured interviews were used to explore participants’ accounts of implementation and the conditions they describ...

Emergent Cooperation in Socio-Ecological Systems Under Resource Scarcity: An Agent-Based Analysis of Sustainability

Angela Isabel Giraldo-Suárez · Yenith Cristina Ortiz-González · José Ignacio García-Valdecasas

A growing demand for resources that exceeds the capacity of the biophysical system to regenerate puts environmental resources under stress, and society faces uncertainties about their scarcity and climate change. In this context, understanding how interactions among environmental, social, and economic systems shape beh...

Ecosystem engineering by mud wasps: influence of the environment and nest structure

Fernanda Eloísa García-Ibarra · Sebastian Serna-Muñoz · Armando Aguirre-Jaimes · José G. García-Franco · y 1 más

Many organisms act as environmental engineers by modifying the physical structure of their habitats and altering the availability of resources for other organisms. Mud wasps are known for building mud nests for their offspring, which are abandoned once the larvae complete metamorphosis and emerge as adults. Here, we co...

First report of MUTYH-associated polyposis with c.1353_1355del and c.452A>G mutations in Tolima Grande region from Colombia: a case report

Mabel, Bohórquez-Lozano · John, Suarez-Olaya · Andrea Catalina, Rubio-Vargas · Fabian, Castro-Valencia · y 8 más

Introduction The MUTYH gene encodes a protein involved in DNA repair and is known for MUTYH -associated polyposis (MAP), a rare autosomal recessive condition that predisposes individuals to colorectal cancer (CRC), colorectal polyps and familial colorectal cancer syndrome. Case report We describe the first Tolima Grand...

Preserving Patient Participation and Professional Moral Agency in Autonomous AI Healthcare

Carlos M. Ardila

Proposal of an Algorithm for the Clinical and Molecular Diagnosis of RASopathies Based on HPO Nomenclature

Fernanda Meneses · Carlos Quintero · Juliana Lores · Eidith Gómez-Pineda · y 3 más

RASopathies are a group of genetic disorders caused by germline variants affecting the RAS/MAPK pathway. Their shared phenotypic features—craniofacial anomalies, cardiac defects, cutaneous findings, neurodevelopmental issues, and cancer predisposition—make diagnosis challenging, especially since most lack standardized...

Use of androgen suppression therapy at salvage radiotherapy in recurrent prostate cancer: a systematic review with meta-analysis

Maria Juliana, Chaves Medina · Rodolfo, Varela Ramírez · Wilfredo, Donoso Donoso · Jaime, Moreno-Chaparro · y 1 más

Introduction Salvage radiotherapy (SRT) is one of the treatment options after progression following surgical management, with effectiveness varying according to patient risk and clinical-pathological characteristics. Objective To compare the effectiveness of SRT alone versus SRT combined with androgen deprivation thera...

Efficient Removal of Tartrazine from Aqueous Solutions Using Eco-Friendly Aqueous Two-Phase Systems (ATPSs)

Andrés Felipe Chamorro · Jhon César Escobar Grueso · Yhors Ciro

Synthetic dyes are widely used in industry; however, their release into the environment without adequate treatment poses serious risks because of their toxicity and adverse effects on human health and aquatic ecosystems. Although conventional methods are effective, they are often costly and have limited sustainability....

El abandono de tierras como crimen de lesa humanidad: un análisis desde la jurisprudencia en materia de restitución

Richard Stivens Molina-Gómez · Paola Andrea Carmona-Toro · Jaime Alberto Pineda Muñoz

El presente capítulo examina el abandono de tierras con el propósito de analizar si los patrones de violencia sobre territorio, hallados en la jurisprudencia de restitución, permiten identificar la eventual concurrencia de los elementos contextuales del crimen de lesa humanidad consa-grados en el Estatuto de Roma. La i...