10 research outputs found
Plan piloto desarrollo de un programa de mentorĂa en el programa de doctorado âFormaciĂłn en la Sociedad del Conocimientoâ y creaciĂłn de un espacio de trabajo colaborativo online
Memoria ID-027 Ayudas de la Universidad de Salamanca para la innovaciĂłn docente, curso 2020-2021
ImplantaciĂłn de un sistema integral de gestiĂłn del conocimiento para los procesos de innovaciĂłn docente de la Universidad de Salamanca
Memoria ID-0312. Ayudas de la Universidad de Salamanca para la innovaciĂłn docente, curso 2014-2015
ImplantaciĂłn de un sistema integral de gestiĂłn del conocimiento para los procesos de innovaciĂłn docente de la Universidad de Salamanca
Memoria ID-0312. Ayudas de la Universidad de Salamanca para la innovaciĂłn docente, curso 2014-2015
Silica-Copper Oxide Composite Thin Films as Solar Selective Coatings Prepared by Dipping Sol Gel
Silica-copper oxide (silica-CuO) composite thin films were prepared by a dipping sol-gel route using ethanolic solutions comprised TEOS and a copper-propionate complex. Sols with different TEOS/Cu-propionate (Si/Cu) molar ratios were prepared and applied on stainless steel substrates using dipping process. During the annealing process, copper-propionate complexes developed into particulate polycrystalline CuO dispersed in a partially crystallized silica matrix, as indicated by the X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses. The gel thermal analysis revealed that the prepared material might be stable up to 400°C. The silica-CuO/stainless steel system was characterized as a selective absorber surface and its solar selectivity parameters, absorptance (α), and emittance (Δ) were evaluated from UV-NIR reflectance data. The solar parameters of such a system were mostly affected by the thickness and phase composition of the SiO2-CuO film. Interestingly, the best solar parameters (α = 0.92 and Δ = 0.2) were associated to the thinnest films, which comprised a CuO-Cu2O mixture immersed in the silica matrix, as indicated by XPS
SĂndrome de nevos azules ahulados: reporte de un caso
ResumenEl sĂndrome de nevos azules ahulados (SNAA) es un sĂndrome poco frecuente, que se caracteriza por la presencia de mĂșltiples malformaciones vasculares en piel y tracto gastrointestinal. TambiĂ©n pueden verse afectados otros Ăłrganos con diferentes manifestaciones clĂnicas tales como artralgias, epistaxis, hemoptisis, hematuria, hemotĂłrax, trombocitopenia leve, coagulopatĂa por consumo y deformaciones Ăłseas, entre otras. Se presenta el caso en un niño de nueve años de edad con SNAA, con manifestaciones clĂnicas caracterĂsticas, tales como lesiones cutĂĄneas puntiformes de color violĂĄceo con tamaño variable y malformaciones vasculares gastrointestinales con sangrado de tubo digestivo.AbstractBlue Rubber Bleb Nevus Syndrome (BRBS) is a rare disease, characterized by multiple vascular malformations in the skin and gastrointestinal tract. Other organs can also be affected, presenting different clinical manifestations such as arthralgia, epistaxis, hemoptysis, hematuria, hemothorax, mild thrombocytopenia, consumptive coagulopathy, and bone deformities, among others. We present a case of BRBS in a nine-year-old boy with the characteristic clinical manifestations of punctated purplish-blue skin lesions that vary in size and gastrointestinal vascular malformations with upper digestive tract bleeding
Large Area, Facile Oxide Nanofabrication via Step-and-Flash Imprint Lithography of Metal-Organic Hybrid Resins
10.1021/am404136pACS Applied Materials and Interfaces52413113-1312