Ir al contenido

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.

883.805 resultados

Se pueden recorrer los primeros 10.000. Afina la búsqueda con los filtros para llegar a lo que buscas.

Artículo 2026 Acceso abierto Revisado por pares

DNA Methylation in Neurobiological Genes Associated with Problematic Digital Use in Adolescents and Young Adults: Systematic Review and Exploratory Multilevel Meta-Analysis of Emerging Evidence

Héctor Cabezas-Klinger · Fabián Felipe Fernández-Daza · Yecid Mina-Paz

Background: Problematic digital use in adolescents and young adults has emerged as a relevant exposure for mental health and neurobiological vulnerability. However, its relationship with peripheral DNA methylation differences in neurobiologically relevant genes remains poorly synthesized. Objective: This systematic rev...

social sciences psychology and cognitive sciences Review
  • MDPI AG
  • English
  • DOI: 10.3390/epigenomes10030050
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Inflammatory Biomarker Profiles in Gingival Crevicular Fluid of Electronic Cigarette Users: A Cross-Sectional Study

Hernan Santiago Garzon · Alejandra Baron · Sara Castillo · Nikol Fonseca · y 4 más

Background: The recent rise in worldwide e-cigarette use has sparked concerns about its effects on oral health, especially regarding the increased risk of periodontal disease. Measuring pro-inflammatory cytokines in crevicular fluid can help detect early subclinical inflammation before symptoms appear. Aim: To quantify...

electronic cigarette IL-6 gingival crevicular fluid IL-1β
  • MDPI AG
  • English
  • DOI: 10.3390/dj14080472
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Search for Higgs boson pair production in the $$ \mathrm{b}\overline{\mathrm{b}}\mathrm{WW} $$ decay channel with two leptons in the final state using proton-proton collision data at $$ \sqrt{s}=13.6 $$ TeV

null, null · Gevorgyan, A. · Hayrapetyan, A. · Makarenko, V. · y 196 más

A bstract A search for Higgs boson pair production is presented, targeting final states where one Higgs boson decays to a bottom quark-antiquark pair and the other Higgs boson decays to two W bosons, both of which decay leptonically, to an electron or a muon, and a neutrino. For the first time, the search is conducted...

physical sciences hadron-hadron Scattering; Higgs physics natural sciences
  • Springer Science and Business Media LLC
  • Italy
  • English
  • DOI: 10.1007/jhep08(2026)019
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Provincial Differences in Cardiometabolic and Work-Related Health Among Professional Spanish Wildland Firefighters: An Age- and Sex-Adjusted Cross-Sectional Study

Rubén Jiménez-Panadero · Fernando Alacid · Rodrigo Yáñez-Sepúlveda · Vicente Javier Clemente-Suárez

Professional wildland firefighters are exposed to substantial physical, thermal, respiratory, and psychosocial demands. This cross-sectional study examined whether cardiometabolic and work-related health indicators differed among the five provinces of Castilla-La Mancha after accounting for age and sex. The analytical...

medical and health sciences work ability clinical medicine metabolic age
  • MDPI AG
  • English
  • DOI: 10.3390/fire9080325
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Identification by UPLC-DAD of Phenolic Compounds from Native Nectariferous Flowers and Their Associated Honeys from Yucatán, Mexico

Andrea Elizabeth Mendoza-Osorno · Kevin Alejandro Avilés-Betanzos · Alberto Uc-Varguez · Manuel Octavio Ramírez-Sucre · y 2 más

Honey biosynthesis is a biochemical transformation process in which nectar-derived phenolic compounds undergo selective modification during collection, enzymatic processing and maturation within the hive. This study investigated the influence of geographical origin (GeO), botanical origin (BO) and drying treatment (DT)...

nectariferous flowers freeze-drying Biology and Biotechnology Biology and Life Sciences
  • MDPI AG
  • DOI: 10.20944/preprints202608.0024.v1
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Autonomous Solar-Powered Smart Sensing Node: Integrating TinyML and Hybrid LoRaWAN/Wi-Fi Connectivity for Sustainable Precision Agriculture

Elizabeth Ospina-Rojas · Juan Sebastián Botero-Valencia · Juan Guillermo Muñoz-Cataño · Juan Carlos Morales-Guerra · y 3 más

Precision agriculture and sustainable farming practices require autonomous environmental monitoring systems capable of operating in remote areas with limited energy and connectivity. However, the high cost of existing professional technology remains a significant barrier to widespread adoption. This study presents the...

solar-powered TinyML IoT precision agriculture
  • MDPI AG
  • English
  • DOI: 10.3390/asi9080163
Leer el documento
Software 2026 Acceso abierto

FoodDonationOptimizer: Version 1.0

Luisa Fernanda, Jimenez Ramirez

Version 1.0 of the optimization model developed for the master's thesis "Design of a Supply Chain for the Reduction of Perishable Food Waste through Food Donation under the Colombian Regulatory Framework." This release contains the source code, optimization model, and supporting files used in the research.

other engineering and technologies engineering and technology
  • Zenodo
  • DOI: 10.5281/zenodo.21782042
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Substrate Concentration Modulates Peptide Profile and Bioactivity in Alcalase Hydrolysis of Bovine Plasma Proteins at Fixed Enzyme-to-Substrate Ratio

Omar A. Figueroa-Moreno · José E. Zapata-Montoya · Ismael Marcet · Manuel Rendueles · y 1 más

Many studies have been conducted testing different enzymes and protein combinations to produce peptides with different types and levels of bioactivities; however, their effect on peptide sequence, peptide size distribution, and bioactivity, while maintaining a constant enzyme–substrate ratio, has been less frequently a...

antioxidant Bioactive Peptides, Dietary Hydrolysis Angiotensin-Converting Enzyme Inhibitors
  • MDPI AG
  • English
  • DOI: 10.3390/molecules31152693
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Search for Higgs boson pair production in association with top-quark pairs using 196 fb−1 of proton–proton collision data at $$ \sqrt{s}=13 $$ and 13.6 TeV with the ATLAS detector

Aad, Georges · Aakvaag, Erlend · Abbott, Braden Keim · Abdelhameed, Sara · y 196 más

A bstract This paper presents the first search for non-resonant Higgs boson pair production in association with a top-quark pair ( $$ t\overline{t} HH $$ t t ¯ HH ) using proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider. The data sample corresponds to an integrated luminosity...

High Energy Physics - Experiment (hep-ex) Hadron-Hadron Scattering Physical Sciences FOS: Physical sciences
  • Springer Science and Business Media LLC
  • Netherlands
  • English
  • DOI: 10.1007/jhep08(2026)020
Leer el documento
Artículo 2026 Acceso abierto Revisado por pares

Catalytic Ozonation of Environmentally Relevant Pharmaceuticals Using Oxygen- and Nitrogen-Doped Activated Carbons

Diego Montenegro-Apraez · C. A. L. Graça · Fiderman Machuca-Martinez · Olívia S. G. P. Soares

Catalytic ozonation is one of the advanced oxidation processes (AOPs) that have yielded promising results in the treatment of emerging pollutants, in which the catalyst plays a fundamental role. In this study, surface oxygen and nitrogen groups were introduced onto two commercial activated carbons, and their catalytic...

emerging contaminants catalytic ozonation carbamazepine environmental biotechnology
  • MDPI AG
  • English
  • DOI: 10.3390/w18151892
Leer el documento

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.

Cómo usar el buscador en tu investigación

1

Encuentra antecedentes

Busca por tema y filtra por tesis doctorales o de maestría para ver cómo abordaron tu problema otros investigadores, y detectar el vacío que va a justificar tu trabajo.

2

Construye tu marco teórico

Ordena por número de citas para identificar los trabajos de referencia de tu área, y quédate con los de acceso abierto para poder leerlos completos hoy mismo.

3

Cita con fuentes verificables

Cada resultado trae autoría, año, editorial y DOI: los datos que necesitas para armar la referencia en APA, y el enlace al repositorio original para verificarla.

Encontraste los antecedentes. ¿Y ahora?

Nuestro equipo de más de 1000 especialistas te acompaña a convertir esa revisión de literatura en un proyecto sólido: delimitación del tema, metodología, redacción y revisión antiplagio con informe de Turnitin.

WhatsApp