Buscador de Tesis y publicaciones académicas

Artículo 2026 Acceso abierto Revisado por pares

When surrogacy turns into unwanted motherhood

Diego Borbón · Nina Pérez-Cepeda · Susana Aranzález

Surrogacy sits at the intersection of three competing bases for legal parentage—consent, genetics, and gestation. This article examines recent judicial decisions in Colombia, focusing mainly on a 2024 Bogotá decision in which a court, relying on the parto (birth) rule, recognized the gestational woman as the legal moth...

• Edicions de la Universitat de Barcelona
• DOI: 10.1344/rbd2026.67.52081

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Artículo 2026 Acceso abierto Revisado por pares

A Statistical Time-Series Forecasting Approach to Coronal Mass Ejection Occurrence Rates Using ARIMA and ARIMAX Models

Juan Rafael Jiménez Sanabria · Daniel Felipe Pineda Cruz · Cristian David Chavez Aponte

Abstract Coronal mass ejections (CMEs) are among the most energetic solar phenomena, and their occurrence rate is modulated by the solar magnetic cycle on timescales relevant to space weather forecasting. We present a statistical time-series forecasting framework based on ARIMA and ARIMAX models applied to five CME sub...

natural sciences earth and related environmental sciences

• Springer Science and Business Media LLC
• DOI: 10.21203/rs.3.rs-9907587/v1

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Artículo 2026 Acceso abierto Revisado por pares

Palmira y su tejido urbano ante la inseguridad

Julián Andrés Villa Cuenca · Nestor Andres Guarnizo Sanchez · María Fernanda Perdomo Neiza

Colombia ha sido, durante décadas, objetivo de la criminalidad tanto en el ámbito rural como urbano. En el Valle del cauca, para el caso específico de Palmira esta ciudad fue reconocida en 2025 como la tercera ciudad más peligrosa del país. Ante este contexto, surge la necesidad de analizar urbanísticamente algunas raz...

other engineering and technologies engineering and technology

• Fundación Universidad de América
• DOI: 10.29097/26191709.422

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Artículo 2026 Revisado por pares

Money Shortages and Complementary Currencies in Small Local Economies

Cristian Frasser · Lucie Lebeau

ABSTRACT This paper rationalizes the adoption of a complementary currency (CC) in a small, local economy. A local money shortage occurs when the supply of official currency, determined endogenously by trade with a larger economy, falls short of the liquidity needed for first‐best activity. A CC then supplements liquidi...

economics and business social sciences

• Wiley
• English
• DOI: 10.1111/iere.70085

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Artículo 2026 Acceso abierto Revisado por pares

Metal Nanoparticle-Reinforced Hydrogels Applied in the Inhibition of Clinical Pathogens: Structural Features, Mechanisms, and Biomedical Prospects

Lizeth Geraldine Muñoz · Yhors Ciro · Andrés Felipe Chamorro

The increasing prevalence of antimicrobial resistance (AMR) has promoted the development of advanced biomaterials capable of overcoming the limitations of conventional antibiotics. In this context, metal nanoparticle hybrid hydrogels (MNHHs) have emerged as multifunctional platforms that integrate the high water-retent...

engineering and technology nano-technology

• MDPI AG
• English
• DOI: 10.3390/pharmaceutics18060765

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Artículo 2026 Acceso abierto Revisado por pares

Deaths due to malnutrition in children under five in Colombia, 2015–2023: a spatiotemporal analysis

Deissy R. Agudelo-Ibáñez · Daniel Diaz · Maylen L. Rojas-Botero · Julián A. Fernández-Niño · y 2 más

Introduction In Colombia, child mortality due to malnutrition persists as a public health problem that has not been comprehensively analyzed over the past decade. Objective To provide a comprehensive analysis of the spatiotemporal behavior of mortality due to malnutrition in children under 5 years of age (CU5) in Colom...

medical and health sciences clinical medicine

• Frontiers Media SA
• DOI: 10.3389/fpubh.2026.1816399

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Artículo 2026 Acceso abierto Revisado por pares

1α,25(OH)2 Vitamin D3 Signaling in Adipose Tissue: Bridging Classical and Non-Classical Pathways in Metabolic Regulation Complexity

Alice Lima Rosa Mendes · Paola Miranda Sulis · Murilo Ferenz · Bruna Antunes Zaniboni · y 5 más

Background: Adipose tissue is increasingly recognized as a highly dynamic endocrine and immunometabolic organ with marked functional heterogeneity. It serves as a reservoir for the active form of vitamin D3, 1α,25-dihydroxyvitamin D3 or calcitriol (1α,25-D3), since it expresses enzymes responsible for its activation an...

health sciences medical and health sciences

• MDPI AG
• English
• DOI: 10.3390/nu18122026

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Artículo 2026 Acceso abierto Revisado por pares

<b>EXPLORANDO O POTENCIAL LÚDICO DO TABULEIRO DE </b><b></b> <b>CIRCUITO ELÉTRICO NO ENSINO E APRENDIZAGEM DA FÍSICA</b><b> </b>

Basilio José Augusto José · Keven Nunes As Mario

This study proposes the use of a board game for playful learning of Physics. The device, integrated into consolidation classes for 8th and 9th grade students in Mozambique, consists of a board with switches controlling light bulbs functioning as a didactic game. The methodology applied included manual work techniques,...

social sciences education

• Universidade Estadual do Oeste do Parana - UN...
• DOI: 10.48075/rebecem.2026.v.10.n.1.33300

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Artículo 2026 Acceso abierto Revisado por pares

Dimensioning of Sustainable Project Management in Productive Sectors, Their Strategic Alignment, Emerging Practices and Implementation Tensions

Daniel Mateo Garzón-Agudelo · Jorge Andrés Sarmiento-Rojas · Milton Januario Rueda-Varón

Although sustainability has consolidated as a central criterion of value and performance in project management, a deep gap persists between its conceptual recognition and its effective application, making it difficult to structure and measure its real scope. Faced with this complexity, this study aims to dimension sust...

economics and business social sciences

• MDPI AG
• English
• DOI: 10.3390/su18126363

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Artículo 2026 Acceso abierto Revisado por pares

Relaciones racializadas capital-trabajo en el multiculturalismo garantista. Trabajadores negros en las palmicultoras de la Orinoquía colombiana

Carolina Castañeda-Vargas

This paper presents an ethnographic approach to the relations among capital-labor-black people fostered by palm plantations in the Orinoco region from a cultural studies perspective. It explores the origin of black settlements that have been produced by contractors or “enganchadores” [recruiters] of the companies that...

social sciences social and economic geography

• Universidad Icesi
• DOI: 10.18046/recs.i48.04

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