Results 31 to 40 of about 2,395,540 (160)

Analysis of the determinant factors in university dropout: a case study of Ecuador

Frontiers in Education
University dropout is a social issue that directly impacts both families and the state, characterized by disparities in enrollment and graduation based on various factors.
Aracelly Fernanda Núñez-Naranjo, Aracelly Fernanda Núñez-Naranjo   +1 more
doaj   +1 more source

Desarrollo de la apropiación tecnológica con recursos educativos abiertos para el aprendizaje en educación primaria rural

Edutec, 2015
La presente investigación tuvo como objetivo analizar el desarrollo de la apropiación tecnológica en alumnos de educación primaria  pertenecientes a un entorno rural, con un ambiente de aprendizaje que integró recursos educativos abiertos de contenidos ...
Sandra Milena Lizarazo Gómez, Leonardo David Glasserman Morales, María Soledad Ramírez Montoya   +2 more
doaj   +1 more source

Elevational variation in heart mass and suppression of hypoxia‐induced right ventricle hypertrophy in Andean leaf‐eared mice (Phyllotis)

The Journal of Physiology, EarlyView.
Abstract figure legend In lowland mammals that ascend to high elevation, hypoxia‐induced changes in the pulmonary circulation can give rise to hypoxic pulmonary hypertension (HPH) and associated right‐ventricle (RV) hypertrophy. Andean mice with broad elevational ranges have greater heart mass relative to body size at higher elevations, but they ...
Naim M. Bautista, Nathanael D. Herrera, Marcial Quiroga‐Carmona, Chandrasekhar Natarajan, Adriana Rico‐Cernohorska, Jorge Salazar Bravo, Graham R. Scott, Guillermo D'Elía, Zachary A. Cheviron, Jay F. Storz   +9 more
wiley   +1 more source

ESTRATEGIAS DE VINCULACIÓN PARA LA TRANSFERENCIA CIENTIFICO Y TECNOLÓGICA AL SECTOR PRODUCTIVO [PDF]

, 2009
Como estructuras axiales del conocimiento, el papel de las universidades en la sociedad de la información adquiere una importancia destacada en la transferencia de los avances científicos y tecnológicos al medio socio-productivo en que se asientan, a ...
HERNÁNDEZ, OLIVIA ALLENDE, ZANFRILLO, ALICIA INÉS, CARELLA, MARÍA INÉS GONZALEZ   +2 more
core  

Bark‐associated yeasts and their potential role as tree carbon sink at the treeline of the southern Andes

Plant Biology, Volume 28, Issue 6, Page 2054-2064, October 2026.
In the southern Andes, Nothofagus pumilio shows elevational decreases in the concentrations of carbon reserves which are the food of bark‐associated yeasts, suggesting that competition for carbohydrates between tree growth and bark‐associated yeasts may cause carbon shortages.
F. I. Piper, C. Oporto, C. Reyes‐Bahamonde, P. Moreno‐Meynard, R. F. Nespolo, L. Saona, F. A. Cubillos, A. Fajardo   +7 more
wiley   +1 more source

Gestión escolar y liderazgo del directivo

Educare, 2021
En el Ecuador existe poca investigación sobre la relación existente entre la gestión escolar y el liderazgo de los directivos al interior de las instituciones educativas, a pesar de contar con Estándares Calidad Educativa que visibilizan esta dependencia.
Laura Cristina Barba Miranda, Karina Elizabeth Delgado Vadivieso   +1 more
doaj   +1 more source

Comparing Approaches for Estimating Counterfactual HIV Incidence Among Populations With High Vulnerability to HIV in Lima, Peru: A Multi‐Study Comparative Analysis

Journal of the International AIDS Society, Volume 29, Issue 9, September 2026.
ABSTRACT Introduction The availability of highly efficacious HIV pre‐exposure prophylaxis (PrEP) makes it unethical or infeasible to conduct inactive/placebo‐controlled trials to evaluate new HIV prevention options. As a result, randomized active‐control non‐inferiority trials are typically employed; however, they require large sample sizes and ...
Fei Gao, Sayan Dasgupta, Siavash Pasalar, Qi Wang, Ricardo Alfaro, Delia Pinto‐Santini, Thiago S. Torres, Jorge Sanchez, Javier R. Lama, Valdilea G. Veloso, Michal Juraska, Robinson Cabello, Jorge O. Alarcon, Beatriz Grinsztejn, Carlos F. Caceres, James F. Rooney, Ann Duerr   +16 more
wiley   +1 more source

Subnanometer Copper Clusters of Five Atoms on Titania Boosting CO2 Conversion to Methane

Small Structures, Volume 7, Issue 9, September 2026.
Supported five‐atom copper clusters (Cu5/TiO2) demonstrate exceptional catalytic performance for CO2 methanation, achieving 100% methane selectivity at 300 °C. Operando X‐ray absorption near‐edge structure (XANES) and DFT calculations reveal a preferred methoxy‐mediated pathway and reversible redox behavior.
Iria R. Arias, Khalil Jori, Shahana Huseyinova, Héctor J. L. Ordóñez, José A. Rodriguez, David Buceta, M. Arturo Lopez‐Quintela, Félix G. Requejo, José M. Ramallo‐López   +8 more
wiley   +1 more source

Political Discourse Analysis: Conceptual and analytical tools for the critical study of educational policies in times of global reform

Education Policy Analysis Archives, 2019
In the context of a global educational reform movement, the principles and policies of the New Public Management (NPM) have become hegemonic to address the educational change in different countries of the world.
Diego Palacios Díaz, Felipe Hidalgo Kawada, Rodrigo Cornejo Chávez, Noemí Suárez Monzón   +3 more
doaj   +1 more source

Controls of bulk density and grain size on Stage 1 evaporation from packed sand columns

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Soil evaporation from the vadose zone is strongly controlled by the pore size distribution and hydraulic connectivity, both of which are altered by mechanical compaction. However, the effect of bulk density changes and its vertical distribution on Stage 1 evaporation in sandy systems remains insufficiently quantified. In this study, we combine
Jorge Renaud, Alberto de la Fuente, Francisco Suárez   +2 more
wiley   +1 more source