Weak boson production measured in PbPb and pp collisions by CMS

The unprecedented center-of-mass energy available at the LHC offers unique opportunities for studying the properties of the strongly-interacting QCD matter created in PbPb collisions at extreme temperatures and very low parton momentum fractions. Electroweak boson production is an important benchmark process at hadron colliders. Precise measurements of Z production in heavy-ion collisions can help to constrain nuclear PDFs as well as serve as a standard candle of the initial state in PbPb collisions at the LHC energies. The inclusive and differential measurements of the Z boson yield in the muon decay channel will be presented, establishing that no modification is observed with respect to next-to-leading order pQCD calculations, scaled by the number of incoherent nucleon-nucleon collisions. The status of the Z measurement in the electron decay channel, as well as the first observation of W \rightarrow \mu {\nu} in heavy ion collisions will be given. The heavy-ion results will be presented in the context of those obtained in pp collisions with the CMS detector.Comment: Quark Matter 2011 conference proceeding

Uso de nuevos medios de apoyo a las exposiciones en el aula

Este trabajo tiene como finalidad poner de manifiesto la experiencia en la aplicación de nuevas herramientas de desarrollo de presentaciones como soporte y las explicaciones de aula. El ámbito temático de la estructura de computadores constituye, por sus singularidades, un terreno propicio para introducir estas nuevas herramientas. Mediante dos ejemplos se trata de ilustrar su empleo como soporte a las exposiciones teóricas, así como a la resolución de problemas

Catalogue of the geological effects of earthquakes in Spain based on the ESI-07 macroseismic scale: A new database for seismic hazard analysis

This paper summarizes the content and scope of the “Catalogue of Earthquake Geological Effects in Spain”. The catalogue has been published by the Geological Survey of Spain (IGME) and constitutes the first official publication (in Spain) on seismic hazard containing geological information. The catalogue gathers the 51 stronger earthquakes that have occurred in Spain since the Neolithic period to the present and classifies earthquakes with geological or archaeological seismic records in paleoseismic, ancient, historical and instrumental earthquakes. The catalogue offers a variety of parametric information, quality indexes (Qe, Qi, Qg), and Environmental Seismic Intensity Scale (ESI-07) based description of environmental damage structured in individual “event files”. Sixteen of the 51 catalogued events present full information files (full event files), with individualized analyses of the geological and geoarchaeological data as well as graphic information with hybrid ESI-EMS intensity maps, ShakeMaps (seismic scenarios) and complementary kmz files (Google Earth) for each of the sixteen selected earthquakes; among which is the well-known AD 1755 Lisbon earthquake-tsunami. These selected earthquakes present individual environmental earthquake effects (EEE) or earthquake archaeoseismological effects (EAE) files for each catalogued effect containing specific site geo-information and graphic data (photos, graphs, maps, etc.). The second edition of the catalogue record 1027 EEEs and 187 EAEs, of which 322 effects have individual filesThis research was funded by the Spanish Research Project MINECO-FEDER CGL2015-67169-P (QTECSPAIN-USAL). This is contribution of the QTECT-AEQUA Working Group

An active tectonic field for CO2 storage management: the Hontomín onshore case study (Spain)

One of the concerns of underground CO2 onshore storage is the triggering of induced seismicity and fault reactivation by the pore pressure increasing. Hence, a comprehensive analysis of the tectonic parameters involved in the storage rock formation is mandatory for safety management operations. Unquestionably, active faults and seal faults depicting the storage bulk are relevant parameters to be considered. However, there is a lack of analysis of the active tectonic strain field affecting these faults during the CO2 storage monitoring. The advantage of reconstructing the tectonic field is the possibility to determine the strain trajectories and describing the fault patterns affecting the reservoir rock. In this work, we adapt a methodology of systematic geostructural analysis to underground CO2 storage, based on the calculation of the strain field from kinematics indicators on the fault planes (ey and ex for the maximum and minimum horizontal shortening, respectively). This methodology is based on a statistical analysis of individual strain tensor solutions obtained from fresh outcrops from the Triassic to the Miocene. Consequently, we have collected 447 fault data in 32 field stations located within a 20 km radius. The understanding of the fault sets’ role for underground fluid circulation can also be established, helping further analysis of CO2 leakage and seepage. We have applied this methodology to Hontomín onshore CO2 storage facilities (central Spain). The geology of the area and the number of high-quality outcrops made this site a good candidate for studying the strain field from kinematics fault analysis. The results indicate a strike-slip tectonic regime with maximum horizontal shortening with a 160 and 50◦ E trend for the local regime, which activates NE–SW strike-slip faults. A regional extensional tectonic field was also recognized with a N–S trend, which activates N–S extensional faults, and NNE–SSW and NNW– SSE strike-slip faults, measured in the Cretaceous limestone on top of the Hontomín facilities. Monitoring these faults within the reservoir is suggested in addition to the possibility of obtaining a focal mechanism solutions for microearthquakes (M < 3)This work has been partially supported by the European Project ENOS: ENabling Onshore CO2 Storage in Europe, H2020 Project ID: 653718 and the Spanish project 3GEO, CGL2017-83931-C3-2-P, MICIU-FEDE

Determinación de valores absolutos de paleoesfuerzos, basados en el maclado de la calcita, en el frente norte de la Sierra de Cameros (Cordillera Ibérica).

Calcite e-twin density (twins/mm) and percentage of calcite grains with one and two twin sets from sparry grains that fill microveins were used to precise the differential stress related with the inversion of the Cameros Basin, a Mesozoic sedimentary basin located in the northwestern part of Iberian Chain (Spain). The results obtained using techniques based on the percentage of twined grains yield better results that those techniques based on twin density. The deduced stress magnitudes fit well with the differential stress interval proposed for fold-thrust belt domains. Combination of twin data with rock mechanics data provides adequate estimations of differential stresses

Speleoseismology and palaeoseismicity of Benis Cave (Murcia, SE Spain): coseismic effects of the 1999 Mula earthquake (mb 4.8)

This work describes the coseismic ceiling block collapse within Benis Cave (−213 m; Murcia, SE Spain), associated with the 1999 Mula earthquake (mb=4.8, MSK VII). The collapse occurred at −156 m into the Earthquake Hall, and as a consequence one small gallery became blind. We studied the geology, topography and active tectonic structures relevant to the cave. In addition, we carried out a seismotectonic analysis of the focal mechanism solutions, and also a fault population analysis on slickensides measured in fault planes in the cave. The stress and strain regime is interpreted as being congruent with the palaeoseismic evidence, and agrees with the fault kinematics established for cave galleries developed within fault planes and growth anomalies of coral flowstone. Our analysis suggests that one active segment (NNE–SSW) determined the morphology and topography of the Benis Cave, where strong to moderate palaeoearthquakes (6≤M≤7) took place. As a consequence of this intense seismic activity a small gallery collapsed. A new palaeoseismic structure, or seismothem, has been recognized, namely the effect of palaeoearthquakes affecting the pattern of development of the spatial coral flowstone distribution located at the bottom of the cave

Criterios geomorfológicos sobre actividad tectónica reciente a lo largo de la Costa Recta, Isla Decepción (Antártida Occidental)

Several active tectonic evidences are observed along Costa Recta, located eastward of Deception Island (western Antarctica): marine terraces and fluvial streams cutting a relict glacier. The height of both landforms decrease southward from Macaroni Point, appointing to a tilt movement across a fault plane. Fault planes were measured at Macaroni Point and Baily Head, with a main NNWSSE orientation, similar to the Costa Recta strike. From several scales o f measure, the orientation of the beach was established in two principal segments: N168QE, and N173QE. On the other hand, the beach and glacier dynamics and sedimentary deposits were studied. According to the morpho-tectonic analysis, we conclude that the Costa Recta beach is a retreat scarp of a submarine fault oriented NNW-SSE and located in the Bransfield Strait, although a geophysical study o f the marine bottom is needed to map the fault trace in an accurate way

Caracterización histológica y molecular de infección por Edwardsiella anguillarum en tilapia (Oreochromis niloticus) cultivada en sistema biofloc en Lima, Perú

The aim of this study was to isolate and characterize phenotypically and molecularly the pathogen Edwardsiella anguillarum, as well as to determine the anatomo-histopathological lesions in tilapia (Oreochromis niloticus) cultivated with biofloc technology in the northern area of Lima, Peru. Five isolated bacterial strains were isolated and characterized by conventional biochemical techniques and by the API 20E system. E. anguillarum was identified from internal organs using biochemical and molecular techniques. The most frequent external clinical signs were bilateral exophthalmia, erythema in the pectoral fins and around the anus. Internally, whitish nodules in the heart and liver were observed. The histopathological study revealed necrosis in the branchial lamellae, spleen, intestine, posterior kidney and gonad, as well as the presence of an inflammatory reaction of granulomatous type in the heart, liver, spleen, kidney and gonads. The strains showed fermentative glucose metabolism and positivity to methyl red, production of hydrogen sulphide, indole and acid production from mannitol. The isolates were confirmed by the PCR technique and sequencing of the 16S rRNA gene. All the strains showed sensitivity to the antibiotics nalidixic acid, florfenicol, gentamicin, kanamycin, flumequine, oxytetracycline and trimethoprim sulfamethoxazole.El objetivo del estudio fue aislar y caracterizar fenotípica y molecularmente al patógeno Edwardsiella anguillarum, así como determinar las lesiones anatomo-histopatológicas en tilapia (Oreochromis niloticus) cultivada con tecnología biofloc en la zona norte de Lima, Perú. Se trabajó con cinco cepas bacterianas aisladas y caracterizadas mediante técnicas bioquímicas convencionales y por el sistema API 20E. Se identificó E. anguillarum a partir de órganos internos mediante las técnicas bioquímica y molecular. Los signos clínicos externos más frecuentes fueron exoftalmia bilateral, eritema en aletas pectorales y alrededor del ano. Internamente se apreció nodulaciones blanquecinas en el corazón e hígado. El estudio histopatológico reveló necrosis en lamelas branquiales, bazo, intestino, riñón posterior y gónada, así como presencia de reacción inflamatoria de tipo granulomatosa en corazón, hígado, bazo, riñón y gónadas. Las cepas evaluadas presentaron metabolismo fermentativo de glucosa y positividad ante las pruebas de rojo de metilo, producción de sulfuro de hidrógeno, indol y ácido a partir de manitol. Los aislados fueron confirmados por la técnica de PCR y secuenciación del gen 16S ARNr. Todas las cepas presentaron sensibilidad a los antibióticos ácido nalidíxico, florfenicol, gentamicina, kanamicina, flumequina, oxitetraciclina y sulfatrimetoprim

Desarrollo de Modulo de Vivienda Desmontable

Con el paso del tiempo, la forma de habitar del ser humano va cambiando conforme a sus necesidades, la forma en la que vivimos repercute directamente en cómo habitamos. Los espacios, los materiales, la arquitectura, la función, las ciudades, los países, todo esto habla de momentos y experiencias de tiempos distintos por los que ha pasado el ser humano a lo largo de la vida. La realidad actual de México es una cantidad innumerable de personas sin hogar en situación de calle, construcciones genéricas y muchas de ellas en abandono, el director general de Estadísticas Sociodemográficas del Instituto, Edgar Vielma, reveló a periódico MILENIO que “Actualmente se desconoce cuántas personas sin hogar hay y los datos más recientes de 2011, elaborados por la Cepal estimaron que en México había 14 millones de personas en esta condición. “Sin hablar de la contaminación por la elección de materiales y procesos constructivos que dañan el medio ambiente, así como gran cantidad de personas habitando espacios que dañan directamente su calidad de vida, y muchas veces sin percibirlo. No solo en México, en el mundo esto es una realidad, tanto así que, según el BlogArquitectura México: “El sector de la Construcción es responsable de consumir el 50% de los recursos naturales, el 40% de la energía y del 50% del total de los residuos generados. Sin embargo, existen materiales y procesos constructivos que ayudan a disminuir drásticamente este daño. La construcción con madera es una opción con grandes beneficios para el planeta ya que, según la revista Venturelli “la madera es un material de características renovables que además ayuda a la reducción de emisiones de CO2 en el ambiente, convirtiéndola en una de las alternativas con las huellas de carbono más bajas a la hora de construir.” Además, es un material bastante fácil de trabajar, permitiendo a cualquier persona utilizarlo para distintas necesidades. En este trabajo se intentará responder a la realidad sobre los alcances de la madera en un sistema constructivo que permita la autoconstrucción, donde buscamos generar una estructura hiperestática formada por marcos de madera, los cuales trabajan en conjunto obteniendo una estructura rígida, de fácil armado y con diseño arquitectónicamente responsable