Results 101 to 110 of about 246,131 (378)
Realidad aumentada para el diseño de secuencias de enseñanza-aprendizaje en química
, 2015 El presente trabajo aborda las implicancias del diseno de secuencias de ensenanza y aprendizaje (SEA) en ciencias, con el uso de realidad aumentada (RA). Las SEA hacen referencia a la planificacion de situaciones de ensenanza y aprendizaje centrada en un
C. Merino +4 more
semanticscholar +1 more source
High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks
Advanced Materials, EarlyView.A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza +11 more
wiley +1 more source
Surface characterization and properties of ordered arrays of CeO2 nanoparticles embedded in thin layers of SiO2 [PDF]
, 2005 We demonstrated the surface composite character down to the nanometer scale of SiO2-CeO2 composite high surface area materials, prepared using 5 nm colloidal CeO2 nanoparticle building blocks.
Airiau, Marc +7 more
core +3 more sources
Advanced Materials, EarlyView.Ferroelectric Hf0.5Zr0.5O2 epitaxial thin films exhibit a non‐volatile, electrically controlled thermal conductivity enabled by the coupling between oxygen vacancy migration, acting as phonon scatterers, and ferroelectric polarization, acting as ion migration valve.
Dídac Barneo +13 more
wiley +1 more source
Exploiting electron storage in TiO2 nanoparticles for dark reduction of As(v) by accumulated electrons [PDF]
, 2013 UV irradiation of an ethanolic sol of TiO2 nanoparticles produces a trapped Ti(III) centre and a noticeable Burstein shift. Direct evidence that the accumulated charges can drive the otherwise forbidden reduction of As(V) by conduction band electrons ...
Aguirre, Matías Ezequiel +6 more
core +1 more source
Modulation of the immuno-coagulative response in a pneumococcal infection in malnourished mice nasally treated with Lactobacillus casei [PDF]
, 2013 We studied the systemic effects of the intranasal administration of Lactobacillus casei on the immuno-coagulative response in pneumoccocal infection in immunocompromised mice.
Agüero, Graciela +4 more
core +2 more sources
Enseñar química en contexto. Una dimensión de la innovación didáctica en educación secundaria
, 2015 Se analiza la presencia de un rasgo de las innovaciones en la ensenanza contemporanea de las ciencias con la utilizacion del concepto «quimica en contexto» a partir del enfoque de Ciencia, Tecnologia y Sociedad aplicado a esta ensenanza.
G. Meroni +2 more
semanticscholar +1 more source
Advanced Materials Interfaces, EarlyView.In situ SAXS/WAXS enables real‐time tracking of nanoparticle formation and evolution in exsolved and infiltrated Ni‐based perovskites under reducing conditions. The combined technique captures nucleation, growth, and coarsening dynamics with high temporal resolution, providing statistically robust insights into structural and morphological ...
Elena Vicente +4 more
wiley +1 more source