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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

Analysis molecular mimicry between protozoa Giardia intestinalis and autoantigens implicated in autoimmune reactive arthritis: potential cross-reactivity

Andres Cuello Arrieta · Valentina García · Marlon Munera · Giovanny Díaz · y 2 más

Abstract Introduction : Giardia intestinalis (G. intestinalis) is an intestinal parasite that infected between 200 and 300 million people worldwide. Some patients developed reactive arthritis after infection clearance. Molecular mimicry could induce cross reactivity to generate autoimmune disease. Objective : To evalua...

health sciences medical and health sciences
  • Springer Science and Business Media LLC
  • DOI: 10.21203/rs.3.rs-9294713/v1
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Artículo 2026 Revisado por pares

Abstract 2302: Prognostic biomarkers associated with the progression of cervical premalignant lesions to cancer: A scoping review

Luis Giraldo-Barrios · Salome Andrade-Romero · Jonathan Villalobos-Escorcia · Gerardo Barboza-Guevara · y 1 más

Abstract Introduction: Cervical cancer is the fourth most common cancer and the fourth leading cause of cancer-related death in women, worldwide. Advances in understanding the molecular biology of premalignant cervical lesions have shown that not all low-grade squamous intraepithelial lesions progress to high-grade squ...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-2302
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Artículo 2026 Revisado por pares

Abstract 4206: The ancestry-transcriptome link: Machine learning predicts chemotherapy response in breast cancer

Michelle Guevara-Nieto · María J. López-Munevar · Carlos Orozco-Castaño · Rafael Parra-Medina · y 6 más

Abstract Background: Breast cancer resistance to neoadjuvant chemotherapy (NAC) remains a major challenge in Latin America, where limited genomic representation restricts precision-oncology advances. Understanding how genetic ancestry interacts with transcriptomic features may uncover population-specific predictors of...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-4206
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Artículo 2026 Revisado por pares

Abstract 3561: Breast cancer characteristics in relation to age at diagnosis, in a leading oncology institution in Cartagena, Colombia

Elias Ferreira · Laura Suarez · Maria P. Valera · Jose Aldana · y 2 más

Abstract Background: Breast cancer is a major public health problem, it is the most commonly diagnosed malignant neoplasia, and the leading cause of cancer deaths in women, worlwide and also in Colombia. .Women living in transitioned countries have considerably higher incidence rates compared with those in transitionin...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-3561
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Artículo 2026 Acceso abierto Revisado por pares 2 citas

A Survey Dataset on Student Retention in Higher Education: A Colombian Public University Case

Erika María López-López · Osnamir Elias Bru-Cordero · Cristian David Correa Álvarez

Student attrition remains a persistent challenge in higher education and is shaped by interacting socioeconomic, academic, institutional, and wellbeing-related mechanisms. Although learning analytics and educational data mining increasingly support early-warning and intervention workflows, dataset reuse is often limite...

social sciences education
  • MDPI AG
  • English
  • DOI: 10.3390/data11040075
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Artículo 2026 Revisado por pares

Abstract 2311: Natural history and biomarker discovery in gastric preneoplasia: Insights from the TUMMIE longitudinal study

Tyler Anthony Simi · Fabian Leonardo Castro Valencia · Nanci Chavarria Villa · Ana Patricia Estrada-Florez · y 8 más

Abstract Background: Gastric cancer remains a leading cause of cancer mortality worldwide, with marked racial and ethnic disparities in incidence and outcomes. Gastric intestinal metaplasia (GIM) is a key preneoplastic lesion, yet its natural history and progression biomarkers are poorly understood, particularly in div...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-2311
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Artículo 2026 Revisado por pares

Abstract 6262: Intraprostatic inflammation and FoxP3, a marker of Regulatory T cells, increase with age in benign prostate biopsies irrespective of clinical indication: placebo arm of the Prostate Cancer Prevention Trial (PCPT).

Zhike Lin · Lauren M. Hurwitz · Ibrahim Kulac · Berrak Gumuskaya · y 12 más

Abstract Background: Intraprostatic inflammation is suspected to contribute to prostate cancer pathogenesis. Prostate cancer has the steepest age-related rise in incidence in solid cancers, and inflammation is thought to increase with age. But prostate tissue is typically obtained only from men with clinical indication...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-6262
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Artículo 2026 Revisado por pares

Abstract 3589: Ancestry-driven transcriptional regulation of breast cancer genes through cis- and trans-eQTLs in colombian populations.

Laura Rey-Vargas · Lina María Bejarano · Patricia López · Diego Felipe Ballen-Lozano · y 1 más

Abstract Introduction: Significant disparities in breast cancer phenotypes have been observed across population groups. Latina women show a higher prevalence of aggressive tumor subtypes and increased mortality compared to non-Hispanic White women. Genetic ancestry differences have been proposed as a potential mechanis...

basic medicine medical and health sciences
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-3589
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Artículo 2026 Revisado por pares

Abstract 5109: Stage at diagnosis and tumor characteristics among screen-detected breast cancer cases in Cartagena, Colombia

Laura C. Pinzon-Martinez · Ines Benedetti · Luis F. Viana

Abstract INTRODUCTION: The implementation of breast cancer screening programs aims for an early diagnosis and timely management. In Colombia, national regulations recommend biennial mammography for women aged 50 - 69 years. Patients with mammographic findings suggestive of malignancy are referred for biopsy. Limited da...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-5109
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Artículo 2026 Revisado por pares

Abstract 223: HPV16 variant lineage in response to treatment in locally advanced cervical cancer.

Monica Morales · Jinneth Acosta · Gina Malaver · María Cristina Alarcón · y 4 más

Abstract Cervical cancer in Colombia ranks third in incidence/mortality, with HPV16 being the most frequent high-risk oncogenic type. The aim of this study was to characterize HPV16 variant lineages in the LCR, E6, and E7 regions and evaluate their association with treatment response in locally advanced cervical cancer...

medical and health sciences clinical medicine
  • American Association for Cancer Research (AAC...
  • English
  • DOI: 10.1158/1538-7445.am2026-223
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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

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3

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