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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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Publication 2026 Acceso abierto

Current Status, Challenges and Future Development Trends of Gallbladder-Preserving Cholecystolithotomy

liang, zhiqiang

Gallbladder-preserving cholecystolithotomy (GPCL) has emerged as a minimally invasive surgical technique for the treatment of gallstones, which retains physiological gallbladder function while eliminating calculi. This study systematically summarizes the clinical application progress, surgical optimization strategies,...

medical and health sciences clinical medicine
  • Zenodo
  • DOI: 10.5281/zenodo.20550278
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Artículo 2026 Acceso abierto Revisado por pares

Evaluating Operational and Environmental Factors in Circular Supply Chains: A Decision-Making Model Integrating Sustainability Dimensions

Claudemir Leif Tramarico · Miguel Angel Ortiz Barrios · Valério Antonio Pamplona Salomon

Background: The transition from linear to circular supply chains (CSC) is critical for advancing sustainability, resilience, and resource efficiency, while supporting the UN Sustainable Development Goals (SDGs). However, existing studies rarely integrate internal operational performance with external PESTEL factors und...

other engineering and technologies multi-criteria decision-making FTOPSIS engineering and technology
  • MDPI AG
  • English
  • DOI: 10.3390/logistics10060129
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Preprint 2026 Acceso abierto

Strategic Location Decisions for Global R&D Centers: How Levi Strauss & Co. Balances Innovation, Knowledge Protection, and International Competitive Advantage in Sustainable Denim

Peña Restrepo, Maryi Xiomara · Benitez Romero, Daniel Hair · Peña Bermudez, Ana María · Zamora, Jairo

This research looks at how the strategic positioning of world R&D centers influences knowledge retention, creative output, and global competitive edge in traditional manufacturing sectors. Understanding how the institutional environment of every center influences how companies handle knowledge protection and innovation...

economics and business social sciences
  • Zenodo
  • DOI: 10.5281/zenodo.20560490
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Artículo 2026 Acceso abierto Revisado por pares

Towards Sustainable Renewable Energy Project Evaluation: A Multi-Layer Framework Integrating Criteria, Methods and Tools

Laura M. Cárdenas · Marcela Lopera-Ramírez · Rosa Alejandra Puerta Campo · Maritza Jiménez · y 2 más

The growing global demand for energy, together with the urgency of advancing toward a sustainable energy transition, has reinforced the role of renewable energy (RE) in shaping more resilient and low-carbon energy systems. However, the evaluation of RE projects remains highly fragmented, with multiple criteria, methodo...

evaluation framework decision support multi-criteria decision-making sustainability
  • MDPI AG
  • English
  • DOI: 10.3390/su18115771
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Artículo 2026 Acceso abierto Revisado por pares

Phytochemical Profiling of Sticta caulescens De Not.: Green Extraction and Multiscale Chemotaxonomic Analysis

Nicolás Cifuentes-Araya · Diego Valdivia · Mariano Walter Pertino · Daniela Marroquín-Guerra · y 4 más

The aim of this research was to identify the wealth of secondary metabolites in the Chilean lichen Sticta caulescens, applying green chemistry approaches and comparing the following two extraction methods: (a) conventional maceration with methanol, and (b) microwave-assisted extraction (MAE) using ethyl lactate as a so...

microwave Green extraction chemotaxonomic analysis non-conventional technology
  • MDPI AG
  • English
  • DOI: 10.3390/plants15111761
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Artículo 2026 Acceso abierto Revisado por pares

Environmental Communication From Latin America: Collective Reflections Through the Systematization of Experiences in the Academic Field

Bruno Takahashi · Iasmim Amiden dos Santos · Raquel Aparicio Cid · Eloisa Beling Loose · y 8 más

We present the results of a Sistematización de Experiencias/Systematization of Experiences (SdE) among twelve researchers from Latin America about environmental communication research carried out across the region. The purpose was to characterize the state of the field, providing a basis for identifying common axes amo...

Latin America Global South Scientificproduction Epistemologies
  • Informa UK Limited
  • English
  • DOI: 10.1080/17524032.2026.2680570
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Artículo 2026 Acceso abierto Revisado por pares

Aerobic rice: a system-based genetic innovation for low water use and methane mitigation

Rebolledo Cid, Maria Camila · Saito, Kazuki · Adam, Myriam · Bartholomé, Jérôme · y 19 más

Conventional flooded rice systems are a major source of methane emissions and are increasingly unsustainable in water-constrained environments, creating increasing pressure to identify alternative production systems. Aerobic rice (AR) has been proposed as one such alternative, with the potential to reduce methane emiss...

Water extraction rendement des cultures environnement socioéconomique Oryza sativa
  • Frontiers Media SA
  • France
  • DOI: 10.3389/fsufs.2026.1841086
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Informe 2026 Acceso abierto

A Review of Swarm UAV Coordination Algorithms with a MATLAB-Based Simulation Framework for Cooperative Missions

GAMBA TORRES, JUAN CARLOS

This paper presents a structured review of coordination algorithms for unmanned aerial vehicle (UAV) swarm systems, with emphasis on bio-inspired methods, consensus-based control, optimization strategies, and hybrid approaches. The study analyzes the operational principles, advantages, and limitations of each category,...

mechanical engineering engineering and technology
  • Zenodo
  • English
  • DOI: 10.5281/zenodo.20549839
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Artículo 2026 Acceso abierto Revisado por pares

An Ontology Engineering Perspective to Create a Unifying Conceptualization of the Leadership Domain

Carlos Mauricio Zuluaga-Ramirez · Manuela Gómez-Suta · Julio Cesar Chavarro-Porras · Sandra Estrada-Mejía · y 1 más

This article aims to propose a unifying conceptualization for the leadership domain utilizing ontology engineering to address conceptual ambiguity and information overlap. The approach involves identifying and defining structural, common, and underlying elements to organize leadership information. The methodology is ba...

leadership information overlap economics and business social sciences
  • MDPI AG
  • English
  • DOI: 10.3390/info17060559
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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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