Una reconstrucción preliminar de la tradición democrática

En términos conceptuales “reconstruir” significa articular ideas aisladas cuyo origen se desconoce, con el objeto de aunar un conocimiento medianamente ordenado para organizarlo teóricamente. Por sencillo que parezca, este ha sido el propósito inicial que, seguramente, más trabajo ha costado a la mayoría de los autores que se han preocupado por la democracia. Dada la vasta literatura y las innumerables expresiones políticas que se han manifestado en la práctica, el estudio de la democracia les ha demandado una profunda y rigurosa sistematización. Algunos han buscado respuestas en los precisos pero a la vez reduccionistas modelos económicos, cuya presunta objetividad científica se ha utilizado para explicar los comportamientos políticos en una democracia, mientras otros han procurado explicar la evolución histórica de la democracia como consecuencia de la lucha o sustitución entre paradigmas –entendidos como visiones de mundo- que dotan de significado a las obras individuales

Draft genome of Haloarcula rubripromontorii strain SL3, a novel halophilic archaeon isolated from the solar salterns of Cabo Rojo, Puerto Rico.

The genus Haloarcula belongs to the family Halobacteriaceae which currently has 10 valid species. Here we report the draft genome sequence of strain SL3, a new species within this genus, isolated from the Solar Salterns of Cabo Rojo, Puerto Rico. Genome assembly performed using NGEN Assembler resulted in 18 contigs (N50 = 601,911 bp), the largest of which contains 1,023,775 bp. The genome consists of 3.97 MB and has a GC content of 61.97%. Like all species of Haloarcula, the genome encodes heterogeneous copies of the small subunit ribosomal RNA. In addition, the genome includes 6 rRNAs, 48 tRNAs, and 3797 protein coding sequences. Several carbohydrate-active enzymes genes were found, as well as enzymes involved in the dihydroxyacetone processing pathway which are not found in other Haloarcula species. The NCBI accession number for this genome is LIUF00000000 and the strain deposit number is CECT9001

Design of VR app applied to cognitive training

This project pretends to develop a virtual reality application to improve actual treatments for patients who suffer from a cognitive degenerative disease. This is possible thanks to what this technology offers to us, and which have had a “boom” in recent years, offering the patient to have a fully immersion and high sensorial experience. The fact that patient works in a virtual environment makes them to not be aware of what happens in real world. The required technology for the development of this application has been offered by “Vysion360” company. This project is the continuation of several end-of-degree projects in which a virtual application set in a supermarket has been developed, thanks to “unity” software. This VR application contains different game modes that allow data collection and to follow patients’ progress. In this project, the main goal was to reduce application’s weight, as well as improve its performance and make a more realistic and uniform supermarket. All what is explained before help patient’s immersion and comfort. Throughout this project’s memory, all steps done while developing the application has been explained, as well as the tools we had, the methodology followed, how does each game works, an explanation on game controls, the improvements made and patients’ assessments. At last, previous projects had collaboration with Hospital Clínic which allowed the application to be tested with patients. In this project, the VR app has been tested with several patients from Associació de Disminuïts Físics d’Osona, and that allowed us to take into account some of their appreciations to be the future lines that the application has to follow in order to be developed and optimized

Ranunculus bupleuroides subsp. cherubicus Sánchez Rodríguez, Elías Rivas & Martín Marcos (Ranunculaceae) en la Sierra De Gredos (Sistema Central, España).

Ranunculus bupleuroides subsp. cherubicus in the Central System, Spain.Palabras clave: Ranunculus, corología, Sierra de Gredos, Ávila, España.Key words: Ranunculus, chorology, Gredos mountain range, Ávila province, Spain

The fourth industrial revolution in education after covid-19

The global pandemic caused by COVID-19 has meant a great change in education since teachers worldwide have had to face the problem of having to undertake online training without adequate preparation or means. In view of this, the fourth industrial revolution, has begun to establish itself strongly as pedagogical support and there are already many governments that are pursuing changes in educational policies that insert a digital education that fragments education and prepares students for the jobs in the 21st century so this revolution is not only imminent but necessary

Geophysical and geotechnical site characterisation for sustainable maritime dredging projects. The example of Port of Langosteira (A Coruña, Spain)

The knowledge of the marine subsoil is a fundamental fact for the correct development of a modern and sustainable dredging project. An accurate defnition of all geological deposits and their dredgeability is directly related to a realistic cost estimation and to the employment of the most efcient equipment. In this sense the combination of geophysical and geotechnical techniques allows optimizing marine investigation surveys and obtaining more precise subsoil models in terms of morphology and dredgeability properties of the diferent units involved. The experience in this kind of projects in diferent sea conditions and a widely range of soil/rock has allowed defning the most appropriate research techniques as well as the suitable equipment and the necessary type of vessel. This paper also presents some brief results of a geophysical and geotechnical marine investigation carried out in the Port of Langosteira (A Coruña, Spain) for dredging works in a rocky seabed.Peer Reviewe

Asymmetric Synthesis of Secondary and Tertiary Propargylic Alcohols by Umpolung of Acetylenic Sulfones and ortho-Sulfinyl Carbanions

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Organic Chemistry, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.joc.7b02887The generation of diastereomerically enriched secondary benzyl propargyl alcohols by the asymmetric addition of ortho-sulfinylbenzyl carbanions to sulfonylacetylene derivatives via formation of a Csp-Csp 3 bond is described. This reaction proceeds through an unusual α-attack (anti-Michael addition) of the ortho-sulfinylbenzyl carbanions, followed by elimination of the arylsulfonyl moiety. The scope of this alkynylation reaction is also discussed. Moreover, the development of a new approach for the synthesis of optically active tertiary benzylpropargyl alcohols is described, discussing the possible stereocourse of the reaction so as the influence of the ether 18-crown-6 and steric importance of acetylenic substituentWe thank DGAPA-UNAM (project number PAPIITIN205316) for financial support. Financial support from the Spanish Government (CTQ2015-64561-R) is also gratefully acknowledge

In situ ethanolamine ZnO nanoparticle passivation for perovskite interface stability and highly efficient solar cells

Zinc oxide (ZnO) has interesting optoelectronic properties, but suffers from chemical instability when in contact with perovskite interfaces; hence, the perovskite deposited on the top degrades promptly. Surface passivation strategies alleviate this instability issue; however, synthesis to passivate ZnO nanoparticles (NPs) in situ has received less attention. Here, a new synthesis at low temperatures with an ethanolamine post treatment has been developed. By using ZnO NPs prepared with ethanolamine and butanol (BuOH), (E-ZnO), the stability of the FA0.9Cs0.1PbI3 (FACsPI)–ZnO interface was achieved, with a photoconversion efficiency of >18%. Impedance spectroscopy demonstrates that the recombination at the interface was reduced in the system with E-ZnO/perovskite compared to common SnO2/perovskite and that the quality of the perovskite on the top is clearly due to the ZnO in situ passivation with ethanolamine. This work extends the use of E-ZnO as an n-type charge extraction layer and demonstrates its feasibility with methylammonium perovskite. Moreover, this study paves the way for other in situ passivation methods with different target molecules, along with new insights regarding the perovskite interface rearrangement when in contact with the modified electron transport layer (ETL)