On the separable quotient problem for Banach spaces

While the classic separable quotient problem remains open, we survey general results related to this problem and examine the existence of a particular infinitedimensional separable quotient in some Banach spaces of vector-valued functions, linear operators and vector measures. Most of the results presented are consequence of known facts, some of them relative to the presence of complemented copies of the classic sequence spaces c_0 and l_p, for 1 <= p <= \infty. Also recent results of Argyros - Dodos - Kanellopoulos, and Sliwa are provided. This makes our presentation supplementary to a previous survey (1997) due to Mujica

Discrete Global Grid Systems with quadrangular cells as reference frameworks for the current generation of Earth observation data cubes

Discrete Global Grid Systems are spatial reference frameworks that associate information to multi-resolution grids of uniquely identified cells; they are proposed as mechanisms to facilitate the efficient integration of heterogeneous spatial data. They could provide an excellent reference system for Earth observation data cubes, technological infrastructures that provide analysis-ready access to Earth Observation big data, as long as they can be made compatible with them. In this paper, we demonstrate that this is currently feasible without requiring new technological developments. We show how a Discrete Global Grid System with quadrangular cells, rHEALPix, and an existing data cube platform, Open Data Cube, can be integrated without loosing the advantages of having all the data in a Discrete Global Grid System, while keeping a straightforward access to all of the analysis tools provided by an Earth Observation Data Cube

Sustainable Carbon as Efficient Support for Metal-Based Nanocatalyst: Applications in Energy Harvesting and Storage

[EN] Sustainable activated carbon can be obtained from the pyrolysis/activation of biomass wastes coming from different origins. Carbon obtained in this way shows interesting properties, such as high surface area, electrical conductivity, thermal and chemical stability, and porosity. These characteristics among others, such as a tailored pore size distribution and the possibility of functionalization, lead to an increased use of activated carbons in catalysis. The use of activated carbons from biomass origins is a step forward in the development of more sustainable processes enhancing material recycling and reuse in the frame of a circular economy. In this article, a perspective of different heterogeneous catalysts based on sustainable activated carbon from biomass origins will be analyzed focusing on their properties and catalytic performance for determined energy-related applications. In this way, the article aims to give the reader a scope of the potential of these tailor-made sustainable materials as a support in heterogeneous catalysis and future developments needed to improve catalyst performance. The selected applications are those related with H2 energy and the production of biomethane for energy through CO2 methanation.This research was funded by the Centro de Desarrollo Tecnologico Industrial-CDTI (ALMAGRID Project-CER-20191006), by the Instituto Valenciano de Competitividad Empresarial-IVACE-FEDER (BIO3 Project-IMDEEA/2019/44) and by the Agencia Valenciana de Investigacion-AVI (REWACER Project INNEST00/19/050).Buaki-Sogo, M.; Zubizarreta Saenz De Zaitegui, L.; García Pellicer, M.; Quijano-Lopez, A. (2020). Sustainable Carbon as Efficient Support for Metal-Based Nanocatalyst: Applications in Energy Harvesting and Storage. 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Flipping Game Development

[EN] This work describes the implementation of a flip teaching alternative in an introductory game development course, using resources from a massive open online course. The results proved to achieve better grades and higher satisfaction to previous and similar lecture-based coursesLinares-Pellicer, J.; Orta-López Jorge; Izquierdo-Doménech, JJ. (2018). Flipping Game Development. IEEE Computer Graphics and Applications. 38(6):118-124. https://doi.org/10.1109/MCG.2018.2876487S11812438