Results 41 to 50 of about 2,287 (158)
La membrana de la punteadura en dos especies de Cacteae, Cactaceae
Botanical Sciences, 2015 En este trabajo se caracterizan y comparan las punteaduras, la pared secundaria y la membrana de la punteadura en elementos traqueales en dos especies de Cactaceae con madera contrastante.
Dalia Grego-Valencia +3 more
doaj +1 more source
Fonaments físics de la informàtica : òptica i fotònica, setembre 2010 [PDF]
, 2010 Aquesta assignatura és una introducció a diversos aspectes fonamentals de la física que poden ser útils a un enginyer informàtic al llarg de la seva carrera professional.
Pérez Navarro, Antoni +1 more
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Revista de Química, 2001 Con este título un poco amplio no se pretende describir íntegramente la Química relevante en la ecología, sino muy modestamente señalar algunos aportes muy recientes de las Químicas básica y aplicada que tendrán impacto en la consecución de una vida y ...
Fritz Räuchle, Richard Korswagen
doaj
Advanced Materials, Volume 37, Issue 25, June 26, 2025.As defect density in 3D perovskites is controlled by adjusting excess formamidinium iodide concentration, shallow defects acts as a carrier sink for amplified spontaneous emission (ASE). A comprehensive charge carrier dynamic model is presented to understand the critical factor of the reduction of ASE threshold.
Chun‐Sheng Jack Wu +4 more
wiley +1 more source
Dyna, 2008 En este artículo se muestran algunos resultados de las investigaciones realizadas por el grupo de Fotónica y Opto-electrónica de la Universidad Nacional de Colombia, Sede Medellín.
RODRIGO ACUÑA +3 more
doaj
Advanced Materials Interfaces, Volume 12, Issue 11, June 9, 2025.The photophysical properties of a hybrid solid state film, composed of a conjugated polymer and CsPbBr3 (zwitterionic sulfobetaine ‐capped) perovskite nanocrystals (NCs), are investigated by ultrafast spectroscopy and morphological characterization. The transient spectroscopy highlights the presence at the interface of a charge transfer state, and the ...
Tersilla Virgili +11 more
wiley +1 more source
Non-invasive estimation of intracranial pressure by diffuse optics: a proof-of-concept study [PDF]
, 2020 Intracranial pressure (ICP) is an important parameter to monitor in several neuropathologies. However, because current clinically accepted methods are invasive, its monitoring is limited to patients in critical conditions.
Rey Pérez, Anna +11 more
core +1 more source
Validación de requisitos funcionales de un Laboratorio Virtual Remoto como apoyo al blended learning
RED. Revista de Educación a Distancia, 2015 Esta investigación analiza los requisitos detectados entre estudiantes y profesores de enseñanzas científico-técnicas, sobre el diseño y funcionalidad de una futura plataforma web que implemente un Laboratorio Virtual Remoto (VRL).
Javier Gamo Aranda +2 more
doaj +2 more sources
Magnetic structure determination and refinement using FullProf
Acta Crystallographica Section B, Volume 81, Issue 3, Page 302-317, June 2025.A description of the FullProf Suite of programs for magnetic structure determination is given. Different types of magnetic structure factors are discussed, and links to examples and tutorials for using the programs are provided.The study of magnetic structures from a crystallographic perspective remains a niche field, largely confined to physical ...
Juan Rodriguez-Carvajal +2 more
wiley +1 more source
Disordered plasmonic system with dense copper nano‐island morphology
Nanophotonics, Volume 14, Issue 12, Page 2151-2160, June 2025.Abstract Dry synthesis is a highly versatile method for the fabrication of nanoporous metal films, since it enables easy and reproducible deposition of single or multi‐layers of nanostructured materials that can find intriguing applications in plasmonics, photochemistry and photocatalysis, to name a few.
Tlek Tapani +18 more
wiley +1 more source