Abasy Atlas: a comprehensive inventory of systems, global network properties and systems-level elements across bacteria

Ibarra-Arellano MA, Campos-Gonzalez AI, Trevino-Quintanilla LG, Tauch A, Freyre-Gonzalez JA. Abasy Atlas: a comprehensive inventory of systems, global network properties and systems-level elements across bacteria. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION. 2016;2016: baw089.The availability of databases electronically encoding curated regulatory networks and of high-throughput technologies and methods to discover regulatory interactions provides an invaluable source of data to understand the principles underpinning the organization and evolution of these networks responsible for cellular regulation. Nevertheless, data on these sources never goes beyond the regulon level despite the fact that regulatory networks are complex hierarchical-modular structures still challenging our understanding. This brings the necessity for an inventory of systems across a large range of organisms, a key step to rendering feasible comparative systems biology approaches. In this work, we take the first step towards a global understanding of the regulatory networks organization by making a cartography of the functional architectures of diverse bacteria. Abasy (Across-bacteria systems) Atlas provides a comprehensive inventory of annotated functional systems, global network properties and systems-level elements (global regulators, modular genes shaping functional systems, basal machinery genes and intermodular genes) predicted by the natural decomposition approach for reconstructed and meta-curated regulatory networks across a large range of bacteria, including pathogenically and biotechnologically relevant organisms. The meta-curation of regulatory datasets provides the most complete and reliable set of regulatory interactions currently available, which can even be projected into subsets by considering the force or weight of evidence supporting them or the systems that they belong to. Besides, Abasy Atlas provides data enabling large-scale comparative systems biology studies aimed at understanding the common principles and particular lifestyle adaptions of systems across bacteria. Abasy Atlas contains systems and system-level elements for 50 regulatory networks comprising 78 649 regulatory interactions covering 42 bacteria in nine taxa, containing 3708 regulons and 1776 systems. All this brings together a large corpus of data that will surely inspire studies to generate hypothesis regarding the principles governing the evolution and organization of systems and the functional architectures controlling them

Control vectorial de BLDC multifase para propulsión eléctrica en aplicaciones aeronáuticas

La electrificación de los sistemas de propulsión de aeronaves está atrayendo el interés de la comunidad científica debido a las metas de reducción de emisiones de CO2 y NOx impuestas al transporte aéreo. Los motores eléctricos de imanes permanentes de tipo BLDC (Brushless DC) ofrecen para esto características interesantes en cuanto a densidad de potencia y par. Considerando los requisitos de fiabilidad y disponibilidad del sector aeronáutico, las máquinas síncronas de imanes permanentes multifase constituyen la mejor alternativa para este tipo de aplicaciones críticas gracias a su inherente tolerancia a fallos. Sin embargo, el aumento del número de fases incrementa la complejidad del sistema. En este trabajo, una vez estudiadas las distintas alternativas disponibles para la representación vectorial de la máquina multifase, se seleccionan las más apropiadas y se desarrollan sus fundamentos matemáticos detalladamente. Estas transformaciones permiten simplificar el modelo de la máquina, además del diseño del lazo de control de par. Una vez realizado este análisis general, se implementa el control de un sistema de propulsión para una aeronave para transporte intra-urbano basado en múltiples hélices propulsadas por BLDCs de 5 fases.Este trabajo se realizó en el marco del programa de ayudas al doctorado 2017 ofrecido por la Fundación Tecnalia Research and Innovation. Ademas, ha recibido financiación por Clean Sky 2 Joint undertaking dentro del programa de investigación e innovación Horizon 2020 de la Unión Europea (EU) a través del proyecto FAil-Safe Electro-mechanical actuation for LAnding Gear (FASE-LAG Grant Agreement No.755562). También, ha sido financiado por el Gobierno Vasco a través del proyecto de investigación CODISAVA (KK-2018/00082) del programa ELKARTEK. El trabajo descrito en esta publicación ha sido financiado por el Gobierno Vasco en base a las ayudas para apoyar las actividades de grupos de investigación del sistema universitario vasco IT978-16. Además, ha sido financiado por el Gobierno Vasco a través del proyecto de investigación ENSOL (KK2018/00040) del programa ELKARTEK

Morphology and magnetic properties of W-capped Co nanoparticles

3 páginas, 3 figuras, 2 tablas.-- et al.Co–W nanoparticles formed by sequential sputtering of Co on amorphous alumina substrate and subsequent W capping are studied by high resolution and by scanning transmission electron microscopies, and by superconducting quantum interference device magnetometry. The analysis is focused on W nominal thickness dependence. Results suggest the formation of amorphous Co–W alloy nanoparticles, whose magnetic moment per Co atom is systematically reduced as the nominal thickness of W capping layer increases. The Co–W nanoparticles show superparamagnetic behavior. The activation energy for moment reversal and the effective anisotropy are obtained.The financial support of MAT08/1077 is acknowledged. A. I. Figueroa acknowledges a JAE-Predoc grant.Peer reviewe

Modelado y simulación de tren de aterrizaje basado en actuador electromecánico con PMSM multifase

Debido a los problemas medioambientales actuales, la electrificación de aeronaves o concepto MEA (More Electric Aircraft) está atrayendo el interés de la comunidad científica. Como resultado, los sistemas de actuación hidráulica están siendo paulatinamente sustituidos por sistemas de actuación electromecánica. Sin embargo, los requisitos de seguridad y disponibilidad del sector aeronáutico sugieren la sustitución de motores eléctricos trifásicos tradicionales por motores multifase con grados de libertad adicionales y tolerancia a fallos. En este sentido, es importante disponer de modelos de simulación fiables para el estudio de este tipo de sistemas. Por ello, en este trabajo se presenta el modelo completo de un tren de aterrizaje electromecánico que incluye una máquina síncrona de imanes permanentes (PMSM) multifase, el cual permite estudiar el comportamiento del sistema en régimen de operación normal y durante situaciones de falta.Este trabajo se realizó en el marco del programa de ayudas al doctorado 2017 ofrecido por la Fundación Tecnalia Research and Innovation. Ademas, ha recibido financiación por Clean Sky 2 Joint undertaking dentro del programa de investigación e innovación Horizon 2020 de la Unión Europea (EU) a través del proyecto FAil-Safe Electro-mechanical actuation for LAnding Gear(FASE-LAGGrant Agreement No.755562). También, ha sido financiado por el Gobierno Vasco a través del proyecto de investigación CODISAVA (KK-2018/00082) del programa ELKARTEK. El trabajo descrito en esta publicación ha sido financiado por el Gobierno Vasco en base a las ayudas para apoyar las actividades de grupos de investigación del sistema universitario vasco IT978-16. Además, ha sido financiado por el Gobierno Vasco a través del proyecto de investigación ENSOL (KK2018/00040) del programa ELKARTEK

SDSS-IV MANGA: Spatially Resolved Star Formation Main Sequence and LI(N)ER Sequence

We present our study on the spatially resolved H_alpha and M_star relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey. We show that the star formation rate surface density (Sigma_SFR), derived based on the H_alpha emissions, is strongly correlated with the M_star surface density (Sigma_star) on kpc scales for star- forming galaxies and can be directly connected to the global star-forming sequence. This suggests that the global main sequence may be a consequence of a more fundamental relation on small scales. On the other hand, our result suggests that about 20% of quiescent galaxies in our sample still have star formation activities in the outer region with lower SSFR than typical star-forming galaxies. Meanwhile, we also find a tight correlation between Sigma_H_alpha and Sigma_star for LI(N)ER regions, named the resolved "LI(N)ER" sequence, in quiescent galaxies, which is consistent with the scenario that LI(N)ER emissions are primarily powered by the hot, evolved stars as suggested in the literature.Comment: 6 pages, 4 figures. ApJ Letter accepte

The materials production and processing facility at the Spanish National Centre for fusion technologies (TechnoFusión)

Proceedings of : The 26th Symposium of Fusion Technology (SOFT-26), Porto (Portugal),- 27 september - 1 october 2010.In response to the urgent request from the EU Fusion Program, a new facility (TechnoFusion) for research and development of fusion materials has been planned with support from the Regional Government of Madrid and the Ministry of Science and Innovation of Spain. TechnoFusion, the National Centre for Fusion Technologies, aims screening different technologies relevant for ITER and DEMO environments while promoting the contribution of international companies and research groups into the Fusion Programme. For this purpose, the centre will be provided with a large number of unique facilities for the manufacture, testing (a triple-beam multi-ion irradiation, a plasma-wall interaction device, a remote handling for under ionizing radiation testing) and analysis of critical fusion materials. Particularly, the objectives, semi-industrial scale capabilities and present status of the TechnoFusion Materials Production and Processing (MPP) facility are presented. Previous studies revealed that the MPP facility will be a very promising infrastructure for the development of new materials and prototypes demanded by the fusion technology and therefore some of them will be here briefly summarized.This work has been supported by Madrid Community through the project TECHNOFUSION (S2009/ENE/1679).Publicad

Synthesis Of Ag@silica Nanoparticles By Assisted Laser Ablation.

This paper reports the synthesis of silver nanoparticles coated with porous silica (Ag@Silica NPs) using an assisted laser ablation method. This method is a chemical synthesis where one of the reagents (the reducer agent) is introduced in nanometer form by laser ablation of a solid target submerged in an aqueous solution. In a first step, a silicon wafer immersed in water solution was laser ablated for several minutes. Subsequently, an AgNO3 aliquot was added to the aqueous solution. The redox reaction between the silver ions and ablation products leads to a colloidal suspension of core-shell Ag@Silica NPs. The influence of the laser pulse energy, laser wavelength, ablation time, and Ag(+) concentration on the size and optical properties of the Ag@Silica NPs was investigated. Furthermore, the colloidal suspensions were studied by UV-VIS-NIR spectroscopy, X-Ray diffraction, and high-resolution transmission electron microscopy (HRTEM).1039

Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba

Microbialites are modern analogs of ancient microbial consortia that date as far back as the Archaean Eon. Microbialites have contributed to the geochemical history of our planet through their diverse metabolic capacities that mediate mineral precipitation. These mineral-forming microbial assemblages accumulate major ions, trace elements and biomass from their ambient aquatic environments; their role in the resulting chemical structure of these lithifications needs clarification. We studied the biogeochemistry and microbial structure of microbialites collected from diverse locations in Mexico and in a previously undescribed microbialite in Cuba. We examined their structure, chemistry and mineralogy at different scales using an array of nested methods including 16S rRNA gene high-throughput sequencing, elemental analysis, X-Ray fluorescence (XRF), X-Ray diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS), Fourier Transformed Infrared (FTIR) spectroscopy and Synchrotron Radiation-based Fourier Transformed Infrared (SR-FTIR) spectromicroscopy. The resulting data revealed high biological and chemical diversity among microbialites and specific microbe to chemical correlations. Regardless of the sampling site, Proteobacteria had the most significant correlations with biogeochemical parameters such as organic carbon (Corg), nitrogen and Corg:Ca ratio. Biogeochemically relevant bacterial groups (dominant phototrophs and heterotrophs) showed significant correlations with major ion composition, mineral type and transition element content, such as cadmium, cobalt, chromium, copper and nickel. Microbial-chemical relationships were discussed in reference to microbialite formation, microbial metabolic capacities and the role of transition elements as enzyme cofactors. This paper provides an analytical baseline to drive our understanding of the links between microbial diversity with the chemistry of their lithified precipitations

Medios de comunicación y derecho a la información en Jalisco, 2015

El octavo informe Q ITESO: Análisis Crítico de Medios revisa el funcionamiento del sistema de comunicación política durante el proceso electoral de 2015, así como diversos aspectos relevantes de unas elecciones que culminaron con un cambio radical en el panorama político en Jalisco. En el universo de los medios de comunicación, se analizan los cambios experimentados por estos en el marco de la coyuntura electoral local, la equidad y profundidad en la cobertura por parte de los periódicos y la difusión que hicieron de las encuestas, así como el discurso e impacto de la propaganda difundida a través de la televisión y la Internet, a lo que se suma los debates registrados en redes sociales como Twitter, y la percepción sobre las campañas por parte de la audiencia tapatía. El examen político se enfoca en la campaña realizada por los candidatos independientes, el planteamiento socioeconómico de los contendientes por la capital del estado y el impacto electoral de un personaje incómodo como el papá del gobernador, para culminar este informe con una reflexión general y un balance de quiénes perdieron y quiénes ganaron al término de las elecciones de 2015.ITESO, A.C