Results 21 to 30 of about 64,676,233 (147)

Thermal Stability and Optical Behavior of Porous Silicon and Porous Quartz Photonic Crystals for High-Temperature Applications

Photonics
This work investigates the changes in the optical response of photonic crystals based on porous silicon (PSi) as a function of temperature. Using the transfer matrix method in combination with thermo-optical properties, we numerically calculate the ...
Ivan Alonso Lujan-Cabrera, Ely Karina Anaya Rivera, Jose Amilcar Rizzo Sierra, Jonny Paul Zavala De Paz, Cesar Isaza, Cristian Felipe Ramirez-Gutierrez   +5 more
doaj   +1 more source

The Geography of Endemism: Diversity and Regionalization of Terrestrial Vertebrates in the West Indies

Journal of Biogeography, Volume 53, Issue 9, September 2026.
ABSTRACT Aim To investigate patterns of species richness and biogeography of the terrestrial endemic vertebrates of the West Indies. Location The West Indies (WI), an archipelago located in the north‐central section of the Atlantic slope of the Americas. Taxon Endemic terrestrial vertebrates.
Alexander Llanes‐Quevedo, Luis E. Sánchez‐Ramos, Juan J. Morrone, Adolfo G. Navarro‐Sigüenza   +3 more
wiley   +1 more source

Denominación del Congreso: "Balance y prospectiva de la Educación Superior en el marco de los Bicentenarios de América del Sur" [PDF]

, 2010
Las TIC como instrumentos facilitadores de los procesos democráticos universitarios. El cambio tecnológico al transformar el hábitat técnico de las instituciones, ha cambiado el modo relacional de configurar la política.
Salmerón, Eduardo
core  

Evolución del concepto producto y servicio en la biblioteca: organización orientada al servicio e intensiva en conocimiento

e-Ciencias de la Información, 2018
El presente artículo tiene por objeto el análisis de lo que significa la biblioteca como organización orientada al servicio e intensiva en conocimiento.
Valentino Morales López
doaj   +3 more sources

An Efficient Data Transmission Protocol Based on Embedded System Using Cellular Technology Infrastructure

Applied Sciences
Every time the proper functioning of the vehicles must be guaranteed, as well as safety and efficiency. To achieve this, some expensive solutions are used, with few connectivity options and that fail to meet consumer demand.
Cesar Isaza, Jonny Paul Zavala De Paz, Ely Karina Anaya, Jose Amilcar Rizzo Sierra, Cristian Felipe Ramirez-Gutierrez, Pamela Rocio Ibarra Tapia   +5 more
doaj   +1 more source

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

European Journal of Inorganic Chemistry, Volume 29, Issue 8, 10 March 2026.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo, Víctor E. López‐Guerrero, Alexander Mondragón‐Díaz, Elvis Robles‐Marín, Marcos Flores‐Alamo, José Manuel Guevara‐Vela, Tomás Rocha‐Rinza, Ivan Castillo   +7 more
wiley   +1 more source

A Comparative Benchmark of Face Detection Models for Noisy and Dynamic Online Class Environments

Future Internet
Monitoring students’ on-screen availability is increasingly critical for analyzing participation patterns in synchronous online learning, especially under videoconferencing conditions characterized by compressed video streams, low-resolution face regions,
Cesar Isaza, Pamela Rocío Ibarra Tapia, Cristian Felipe Ramirez-Gutierrez, Jonny Paul Zavala de Paz, Jose Amilcar Rizzo Sierra, Karina Anaya   +5 more
doaj   +1 more source

The new Flemings now sing: a methodological evaluation of gamification and citizen science strategies to raise awareness on antimicrobial resistance

Immunology &Cell Biology, Volume 104, Issue 3, Page 265-275, March 2026.
The SWICEU project's awareness strategy against the rise of AMR combines direct participation in laboratory experiments and awareness campaigns as well as the creation of gamification materials to engage the public. All of this is supported by dissemination through the media, social networks and participation in online and live events.
Antonio Tarín‐Pelló, Sara Fernández‐Álvarez, Beatriz Suay‐García, Elisa Marco‐Crespo, José Ignacio Bueso‐Bordils, Carolina Galiana‐Roselló, María‐Teresa Pérez‐Gracia   +6 more
wiley   +1 more source

LAS CONCEPCIONES DOCENTES Y LA INCORPORACIÓN DE NUEVAS TECNOLOGÍAS EN SUS PRÁCTICAS [PDF]

, 2013
Las diferentes tendencias curriculares en matemáticas reflejan diferentes concepciones sobre la epistemología de las matemáticas y su enseñanza y a pesar de que la sociedad enfrenta avances vertiginosos en la tecnología y las ciencias, los currículos ...
Arceo, Cristina
core  

Uso de las tecnologías de la información y la comunicación por universitarios mayas en un contexto de brecha digital en México

Región y Sociedad, 2019
El objetivo del artículo es analizar la disponibilidad y uso de las tecnologías de la información y la comunicación y las habilidades digitales de estudiantes de la Universidad Intercultural Maya de Quintana Roo.
Dulce Angélica Gómez Navarro
doaj   +1 more source