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Buscador de Tesis y publicaciones académicas

Consulta más de 250 millones de tesis, artículos científicos, ponencias y datasets de repositorios abiertos de todo el mundo. Encuentra antecedentes para tu investigación y descarga los que son de acceso libre.

885.534 resultados

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Artículo 2026 Acceso abierto Revisado por pares

Green Roof Substrates for Water Quality Improvement: A Critical Review of Biosorption–Phytoremediation Synergies

Jordana Georgin · Dison S. P. Franco · Youssef Miyah · Noureddine El Messaoudi · y 2 más

Green roofs offer significant potential for urban stormwater management, yet their capacity to improve runoff water quality is constrained by the limited pollutant retention of conventional substrates and inherent nutrient leaching risks. This critical review synthesizes recent advances in substrate engineering and phy...

environmental biotechnology engineering and technology
  • MDPI AG
  • English
  • DOI: 10.3390/molecules31111862
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Artículo 2026 Acceso abierto Revisado por pares

Using Machine Learning Models and Numerical Algorithms for Estimating the Strength of Cemented Silt Through Porosity-Binder Index

Jair de Jesús Arrieta Baldovino · Oscar E. Coronado-Hernandez · Yamid E. Nuñez de la Rosa

One of the recent challenges in problematic-soil improvement is the proper definition of mix design parameters, particularly cement dosage, curing time, and compaction density. Although the porosity–cement ratio has been widely used to assess the strength behaviour of cemented soils, traditional empirical approaches of...

  • MDPI AG
  • English
  • DOI: 10.3390/buildings16112169
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Artículo 2026 Acceso abierto Revisado por pares

Co-Valorization of Waste Cooking Oil and Expanded Polystyrene Pyrolysis Fractions as Potential Fuel Blendstocks

Arantxa M. Gonzalez-Aguilar · James R. Vera-Rozo · José M. Riesco-Ávila

The energy demand, depletion of fossil fuels, generation of plastic waste, and final disposal of waste cooking oil (WCO) have become major concerns due to industrialization and population growth, creating significant environmental challenges. These challenges have encouraged the development of sustainable alternatives...

engineering and technology chemical engineering
  • MDPI AG
  • English
  • DOI: 10.3390/polym18111341
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Artículo 2026 Revisado por pares

Micro small business innovation recovery performance: the mediating roles of business agility, new idea search and frugal spending policies

Robert Kwame Dzogbenuku · Joshua Kofi Doe · Felicia de Heer · Cynthia A. Bulley

Purpose Grounded in dynamic capabilities theory (DCT), this study investigates the mechanisms linking innovation strategy to post-COVID-19 recovery performance of micro-, small- and medium-sized enterprises (MSMEs) in Ghana. It critically tests the presumed mediating roles of three micro-foundations, namely business ag...

economics and business social sciences
  • Emerald
  • English
  • DOI: 10.1108/jepp-04-2025-0125
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Artículo 2026 Acceso abierto Revisado por pares

Complex Shear‐Wave Splitting Behavior in the Northern Andes and Possible Implications for Mantle Flow Around the Caldas Tear

Christopher J. W. Carchedi · Lara Wagner · Gaspar Monsalve · David S. Avellaneda‐Jiménez · y 1 más

Abstract We investigate shear‐wave splitting of SKS and SKKS phases from teleseismic earthquakes to study the anisotropic structure of the lithosphere and upper mantle beneath the Colombian Andes. This area is shaped by complex interactions between the subducting Nazca and Caribbean plates beneath the South American pl...

natural sciences earth and related environmental sciences
  • American Geophysical Union (AGU)
  • English
  • DOI: 10.1029/2025jb033131
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Artículo 2026 Acceso abierto Revisado por pares

Integrating Multiple Correspondence Analysis and GWAS to Evaluate Reproductive Potential in Crossbred Heifers

Andrés Rodríguez Serrano · Marcos Ahumada Velasco · Jesús María Cárdenas Beltrán · José Morelos Gómez

Objectives: The objective of this study was to evaluate the reproductive potential of crossbred heifers from dual-purpose systems using body conformation traits and to explore their genomic associations. Methods: A total of 522 heifers from the Colombian Caribbean region were phenotyped for structural and morphological...

animal and dairy science agricultural and veterinary sciences
  • MDPI AG
  • English
  • DOI: 10.3390/genes17060611
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Artículo 2026 Acceso abierto Revisado por pares

Reproductive history and cognitive aging: Interactive effects of children and grandchildren in a life history framework

Oscar R. Sánchez · Ana María Salazar Montes · Olga Lucía Pedraza · Juan David Leongómez

Abstract Cognitive decline, particularly Alzheimer’s disease, represents a significant global health concern. While traditional risk factors are well documented, an evolutionary perspective grounded in life history theory offers critical insights into the intergenerational dynamics influencing cognitive aging. This stu...

  • openRxiv
  • DOI: 10.64898/2026.05.26.727926
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Artículo 2026 Acceso abierto Revisado por pares 1 cita

Emerging applications of artificial intelligence for risk stratification in head and neck cancer: a scoping review

Valeria Concha Fernández · Mariana González Garcés · Jerónimo Cárdenas Montoya · Mario Andrés Torres Torres · y 1 más

Introduction Head and neck cancer represents a major clinical challenge due to its pronounced biological, histopathological and anatomical heterogeneity, which limits the predictive accuracy of conventional staging systems. To optimize diagnostic and therapeutic decision-making, reduce overtreatment and advance towards...

medical and health sciences clinical medicine
  • Frontiers Media SA
  • DOI: 10.3389/fonc.2026.1803391
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Publication 2026 Acceso abierto

Journal Club ESKAPE Pathogens Antimicrobial Resistance, Epidemiology, Clinical Impact and Therapeutics

Ortega Zúñiga, Carlos Felipe · Castañeda Ramírez, Claudia Rocío

Journal club presented by Carlos Ortega Zuñiga as part of the 2026-1 academic activities of the Antimicrobial Resistance Research Line of the Student Research Group in Microbiology, Immunology and Cancer, under the mentorship of Claudia Rocio Castañeda Ramírez, BSc., MSc., PhD(c). This material is intended to promote a...

basic medicine medical and health sciences Antimicrobial Stewardship ESKAPE Pathogens
  • Zenodo
  • Spanish
  • DOI: 10.5281/zenodo.20420469
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Resultados provistos por OpenAIRE, la infraestructura europea de ciencia abierta. Tesis y Másters Colombia no aloja ni distribuye estos documentos: cada enlace lleva al repositorio de origen.

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1

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2

Construye tu marco teórico

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3

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