Results 31 to 40 of about 11,779 (119)

Investigación acción en grupos vulnerables

RECIE Revista Electrónica Científica de Investigación Educativa, 2017
El presente documento expone de manera sintética los resultados finales de una investigación – acción que se desarrolló con la participación de interventores educativos y grupos vulnerables procedentes de algunas comunidades del municipio de Satevó ...
Sandra Vega Villarreal
doaj   +1 more source

Mothbox and Mothbot: Automated light trap and data processing system for scalable insect monitoring

Methods in Ecology and Evolution, Volume 17, Issue 7, Page 2082-2091, July 2026.
Abstract Insects represent the most diverse group of organisms on Earth and comprise the majority of known species; yet they are seldom accounted for in large‐scale biodiversity monitoring systems and conservation planning. We have developed the Mothbox—an open source automated light trap that makes insect monitoring accessible to non‐specialists and ...
Hubert A. Szczygieł, Brianna Johns, Bernat Fortet, Daisy H. Dent, Kit Quitmeyer, Andrew Quitmeyer   +5 more
wiley   +1 more source

Robótica educativa potencia la formación Ciencia, Tecnología, Ingeniería, y Matemáticas en docentes de secundaria

Maskana
Este estudio tuvo como objetivo validar una estrategia pedagógica basada en robótica educativa para desarrollar competencias STEM en docentes de secundaria de Bogotá, Colombia.
Diego Armando Bautista Diaz, Benjamin Baron-Velandia, Daniel Roman-Acosta, Wileidys Artigas   +3 more
doaj   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, Volume 20, Issue 6, Page 1429-1452, June 2026.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Pregnancy under fifteen: The motives and redefinition of life’s course

Salud Pública de México, 2016
Objectives. To interpret the motives of pregnancy in girls and the re-signification of their life’s course. Materials and methods. In the cities of Bogota, Cali, Cartagena and Medellin, 18 life stories of adolescents under 15 years old with experience of
Carlos Iván Pacheco-Sánchez
doaj  

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, Volume 15, Issue 21, 5 June 2026.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

Advanced Intelligent Systems, Volume 8, Issue 6, June 2026.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach, Mehdi Krichen, Julian Raub, Christina Stathopoulos, Bruno Bartolini, Mahmut Selman Sakar   +5 more
wiley   +1 more source

Caminando sobre huevos: Una reflexión construccionista sobre la investigación

Athenea Digital, 2006
¿Cuál es la noción de acción que guía a la investigación construccionista? Tomando esta pregunta como base, se recurre a una investigación realizada para evaluar el papel de la Comisión Nacional de SIDA (CNAIDS) del Ministerio de Salud de Brasil como ...
Mary Jane Spink
doaj   +1 more source

Cortical gray–white matter contrast alterations precede amyloid‐β positivity and macrostructural changes in older adults without dementia

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Early Alzheimer's disease (AD) involves subtle cortical changes that may precede atrophy. Magnetic resonance imaging (MRI) microstructural markers may detect earlier pathology than classical morphometry. METHODS We analyzed cross‐sectional MRI and amyloid‐β (Aβ) positron emission tomography (PET) data from 1323 non‐demented AMYPAD
Leonard Pieperhoff, Luigi Lorenzini, Francisco Almeida, Mario Tranfa, Ariane Bollack, Prithvi Arunachalam, Federico Masserini, Robin Wolz, Sylke Grootoonk, Craig Ritchie, Mercè Boada, Marta Marquié, Jort Vijverberg, Rik Vandenberghe, Bernard J. Hanseeuw, Pablo Martinez‐Lage, Pierre Payoux, Pieter Jelle Visser, Michael Schöll, Giovanni B. Frisoni, Matteo Pardini, Luca Roccataglia, Andrew W. Stephens, Chris Buckley, Gill Farrar, Frank Jessen, Juan Domingo Gispert, Gemma Salvadó, Emma S. Luckett, Henk‐Jan MM Mutsaerts, Alle Meije Wink, Lyduine E. Collij, Frederik Barkhof, Tiago Gil Oliveira, the AMYPAD consortium   +34 more
wiley   +1 more source

INVESTIGACIÓN-ACCION: UN NUEVO ENFOQUE SOCIOLOGICO

Revista Colombiana de Educación, 1983
En los últimos años la contribución de las ciencias sociales como promotoras del proceso de cambio de los países en desarrollo ha sido objeto de numerosas críticas. A pesar del aumento en la producción de estudios relacionados con el desarrollo nacional,
Nelly Stronquist
doaj   +1 more source