La superficie plasmons permite la localización de la luz a escala nanométrica lo cual nos proporciona una ma- nera eficaz de controlar la excitación y las propiedades de los sistemas cuánticos. La confinación de los cam- pos electromagnéticos en regiones pequeñas permite diversas aplicaciones tecnológicas, tales como nano- fotónica, biosensoramiento, biotecnología, imágenes para medicina y otros excitantes campos tecnológicos. En ese sentido, la fabricación de nano-estructuras que puedan sostener la superficie de los plasmons puede excitar emisores cuánticos y hasta modificar las emi- siones de estos a través de cambios en la densidad de población de un determinado nivel de energía del emi- sor cuántico. Un ejemplo de estos emisores cuánticos son los iones de tierras raras, los cuales a través de un acoplamiento fotón-plasmón permite nuevos desarrollos tecnológicos...

BACKGROUND AND OBJECTIVES: In the meat industry, inefficient management of organic waste exists, therefore the study aims to evaluate different bovine and poultry organic residues as food substrates during larval development of the black soldier fly, such as a sustainable alternative to obtain high protein meal. METHODS: The research evaluates the use of organic waste from cattle and poultry slaughterhouses, as food substrate for black soldier fly larvae, including raw beef blood T1, raw beef viscera T2, cooked beef blood T3, cooked beef viscera T4, raw chicken viscera T6 and cooked chicken viscera T7; further, as a control measure balanced feed (7 treatments and 5 replicates). Larvae were fed for 5 days and processed to make meal by drying and grinding; evaluating mortality, weight, size, proximal chemical composition, and apparent digestibility to determine the most viable substrate, a...

The Judd-Ofelt analysis is essential becauseit indicates the influence of rare earth iondoping on the host matrix in which they arefound. In the present work, the results of theoptical characterization of zinc-tellurite glassesdoped with Yb3+ are presented, varying theconcentrations of Tm3+ and Er3+ by means of UVVISabsorption spectroscopy and refractive indexmeasurements. From these results, the Judd-Ofeltparameters were obtained, which indicated astructural modification with the addition of rareearth ions in the tellurite glassy matrix, due tothe rearrangement of the glassy structure and thebreaking of Te-O bonds.