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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

A Zero-Inflated Analysis of Vigorous Physical Activity Among University Students in South Africa

P. Pitsha · R. T. Chiruka · H. Gomwe · C. S. Marange · y 1 más

Abstract Vigorous physical activity (VPA) is an important health determinant, but participation among university students remains low. When measured as the number of days engaged in VPA, physical activity (PA) data typically exhibit excess zeros and overdispersion, violating the assumptions of the traditional count reg...

  • Springer Science and Business Media LLC
  • DOI: 10.21203/rs.3.rs-9496314/v1
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Artículo 2026 Acceso abierto Revisado por pares

Detection of Microplastics and Heavy Metals Using Electronic Tongues and Machine Learning

Luis Angel Peña · Juan P. Hoyos-Sanchez · Juan Daniel Sarmiento · Mónica V. Sandoval Rincón · y 1 más

Water resources face a significant environmental challenge: pollution from microplastics (MP) and heavy metals (HM). These elements pose a dual threat to ecosystems and public health. Microplastics, defined as particles smaller than 5 mm, are of anthropogenic origin, resulting from the degradation of plastics by enviro...

biological sciences natural sciences
  • MDPI AG
  • English
  • DOI: 10.3390/s26103054
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Artículo 2026 Acceso abierto Revisado por pares

Who returned to Bogota’s city centre? An approach to the population transition process before the arrival of COVID–19

Camilo Alejandro Moreno Iregui

After more than half a century of public investments and rescue plans for the central city, the question remains: who has returned to the city centre? To explore this, a cross-sectional study is proposed to analyse the demographic profiles of people arriving in the central city before COVID-19 emerged. Methodologically...

social sciences social and economic geography
  • Universidad de Valladolid
  • DOI: 10.24197/ciudades.29.2026.133-154
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Artículo 2026 Acceso abierto Revisado por pares

The Use of the Judicial System as a Device for Political Persecution Against Young People in Colombia

Juliana Castellanos Díaz

This article analyzes the criminalization of the student movement in Colombia during the 21st century from the perspective of the judicial system, within the framework of armed conflict and the implementation of transitional justice. From a legal and social perspective, it argues how the misuse of criminal law to const...

  • Universidad Autonoma de Chile
  • DOI: 10.32457/rjyd.v9ispecial.3545
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Artículo 2026 Acceso abierto Revisado por pares 1 cita

AIoT Ecosystem for Intelligent Water Quality Monitoring Through Edge Processing and Generative Artificial Intelligence

Giovanni Rafael Caicedo Escorcia · Liliana Vera-Londoño · Jaime Andres Perez-Taborda

Water quality monitoring remains a critical challenge for achieving Sustainable Development Goal 6, particularly in rural and resource-constrained environments where conventional laboratory-based methods are costly and slow. This study presents the development and field validation of an Artificial Intelligence of Thing...

environmental engineering engineering and technology
  • MDPI AG
  • English
  • DOI: 10.3390/technologies14050296
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Artículo 2026 Acceso abierto Revisado por pares

Assessing perceived needs for telepathology implementation in Colombia: a baseline study from Red GLORIA

Marcela Gomez-Suarez · Gabriel E. Acelas-Gonzalez · Andrés Mosquera-Zamudio · Julian C. Riaño-Moreno · y 3 más

Background Cancer diagnosis in Colombia faces delays and regional inequities, particularly in rural and underserved areas where access to subspecialist pathology is limited. General pathologists in these contexts frequently manage complex oncological cases with limited expert support, which may increase diagnostic unce...

medical and health sciences clinical medicine
  • Frontiers Media SA
  • DOI: 10.3389/fdgth.2026.1765310
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Artículo 2026 Acceso abierto Revisado por pares

The climate justice implementation gap: are urban health and planning workforces trained for equitable climate adaptation?

Mónica Acuña-Rodriguez · María Cristina Florián-Pérez · Fabriccio J. Visconti-Lopez · Nellys María Barrios Acuña

Although climate justice has become a central principle in urban adaptation discourse, it remains unclear whether the professional workforce responsible for implementing adaptation strategies is adequately prepared to operationalize these commitments. In this policy brief, we examine the evolving scientific landscape o...

  • Frontiers Media SA
  • DOI: 10.3389/fclim.2026.1827634
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Artículo 2026 Revisado por pares 1 cita

Plantas medicinales que sanan heridas de guerra: una experiencia de reconciliación interespecie

Vanesa Giraldo‐Gartner · Sandra González Sanabria · Edna Rocío Cortés Guzmán

ABSTRACT This article examines a campesino women's interspecies reconciliation initiative in Caquetá, Colombia, that promotes community processes of healing and peacebuilding through medicinal plants. Drawing on collaborative ethnography, we analyze how medicinal plants become nodes of socioecological relations that en...

  • Wiley
  • English
  • DOI: 10.1111/jlca.70048
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Artículo 2026 Acceso abierto Revisado por pares

Osmotic adjustment, toxic ion exclusion and oxidative protection as key traits for the tolerance to NaCl stress in forage sorghum

Juan Carlos Alvarez-Pizarro · Iara Maria Alexandre da Silva · José Jonas Gomes Cavalcante · Isadora Êdua da Silva Lima · y 4 más

Abstract The physiological and biochemical responses to 120 mmol L -1 NaCl in CSF20 genotype and Catissorgo variety of forage sorghum were studied. The salinity did decrease the plant growth, but it was stronger in CSF20 than in Catissorgo. Under salinity, K + content was not changed in CSF20 and it was solely reduced...

  • Springer Science and Business Media LLC
  • DOI: 10.21203/rs.3.rs-9453311/v1
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Artículo 2026 Acceso abierto Revisado por pares

Human Resource Planning for Building Construction Processes Through the Integration of BIM and Line of Balance

Santiago Olaya · Camilo Tibaná · Omar Sánchez · Karen Castañeda · y 1 más

Construction projects depend heavily on manual labor; however, workforce productivity is frequently constrained by poor planning and communication. This paper proposes a methodological framework that combines Building Information Modeling (BIM) with the Lines of Balance (LOB) technique to estimate, allocate, and visual...

other engineering and technologies engineering and technology
  • MDPI AG
  • English
  • DOI: 10.3390/buildings16101919
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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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