894 resultados para Padilla


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Programa de doctorado: Lengua española y lingüística general

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Directores: Sergio Moreno Gil y Jorge Enrique Araña Padilla. Programa de doctorado: Desarrollo integral e innovación de destinos turísticos

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Director: Sergio Moreno Gil. Codirector: Jorge E. Araña Padilla. Trabajo presentado al Concurso Mi Proyecto de Tesis en un Póster (2015) del Vicerrectorado de Títulos y Doctorado

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Programa de Doctorado: Sanidad Animal y Seguridad Alimentaria

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[ES] En 1890 (pág. 714), Rothpletz y Sirnonelli, al estudiar la fauna del Mioceno de Las Palmas, citan el Strombus coronatus de las localidades siguientes Fuerteventura-Lomo Blanco, La Vista, Ba- rrancos (Gran Canaria). En 1956, Hausen (pkg. 35), en una nota infrapaginal, da cuenta del hallazgo de un Strombus coronatus realizado por don Simón Benítez Padilla en Morro Jable (Jandía), a 55 metros de altura. Crofts, en 1965, es el primero en realizar un estudio más detenido de los niveles marinos de Fuerteventura, pero se limita a un tramo de 40 kilómetros de la costa noroccidental. Describe niveles marinos a 55, 35, 23, 16, 7 y 2 metros, los compara con los datos de la costa occidental de África y deduce una estabilidad total de Fuerteventura durante el Cuaternario.

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Programa de doctorado en Sanidad animal y seguridad alimentaria

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The copper mining boom in Michigan's Upper Peninsula ended in the mid-1960s, but the historical mining still affects the region to this day. Earlier studies conducted in the Keweenaw have shown that trace metals in the sediments negatively affect benthic macroinvertebrate populations. However, because the concentrations of trace metals that are observed to be toxic often differ significantly between the laboratory and the environment, a better method for determining toxic levels of trace metals in the natural environment is desirable in order to establish surface water quality guidelines that effectively protect aquatic life. There were four research objectives for this research project. First, to determine if trace-level concentrations of copper can result in detectable ecological impacts even in the presence of high dissolved organic carbon (DOC). Second, to determine if there is a "safe" concentration of total dissolved copper below which there is little to no ecological impairment. Third, to establish which streams in the Keweenaw Peninsula have been most impacted by elevated levels of total dissolved copper. Fourth, to use this information to evaluate revisions to the water quality criterion for copper that were recently proposed by the Michigan Department of Environmental Quality (MDEQ). In order to collect water quality and macroinvertebrate data, two sampling surveys of approximately 50 streams were completed in the spring and summer of 2012. Our findings demonstrate that negative ecological impacts can be detected even in the presence of high concentrations of DOC. The majority of surveyed streams showed evidence of total dissolved copper concentrations that were elevated above background levels. Our findings suggest that there are detectable negative impacts below the current water quality standard for copper in many Keweenaw streams. The diversity of benthic macroinvertebrates and the number of species present has been reduced as a result of exposure to copper. Additionally, the multimetric approach used by MDEQ is unable to detect copper impairment in local streams due to the use of several insensitive metrics. The proposed changes to the copper criterion would increase the amount of total dissolved copper allowable despite the fact that approximately 25% of streams sampled have aquatic chemistries that would leave them vulnerable to high levels of copper ions.

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Understanding the links between genetic, epigenetic and non-genetic factors throughout the lifespan and across generations and their role in disease susceptibility and disease progression offer entirely new avenues and solutions to major problems in our society. To overcome the numerous challenges, we have come up with nine major conclusions to set the vision for future policies and research agendas at the European level.

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Mycobacterium tuberculosis strains of the Beijing lineage are globally distributed and are associated with the massive spread of multidrug-resistant (MDR) tuberculosis in Eurasia. Here we reconstructed the biogeographical structure and evolutionary history of this lineage by genetic analysis of 4,987 isolates from 99 countries and whole-genome sequencing of 110 representative isolates. We show that this lineage initially originated in the Far East, from where it radiated worldwide in several waves. We detected successive increases in population size for this pathogen over the last 200 years, practically coinciding with the Industrial Revolution, the First World War and HIV epidemics. Two MDR clones of this lineage started to spread throughout central Asia and Russia concomitantly with the collapse of the public health system in the former Soviet Union. Mutations identified in genes putatively under positive selection and associated with virulence might have favored the expansion of the most successful branches of the lineage.

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CONTEXT Transcutaneous electrical nerve stimulation (TENS) is a promising therapy for non-neurogenic lower urinary tract dysfunction and might also be a valuable option in patients with an underlying neurological disorder. OBJECTIVE We systematically reviewed all available evidence on the efficacy and safety of TENS for treating neurogenic lower urinary tract dysfunction. EVIDENCE ACQUISITION The review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement. EVIDENCE SYNTHESIS After screening 1943 articles, 22 studies (two randomised controlled trials, 14 prospective cohort studies, five retrospective case series, and one case report) enrolling 450 patients were included. Eleven studies reported on acute TENS and 11 on chronic TENS. In acute TENS and chronic TENS, the mean increase of maximum cystometric capacity ranged from 69ml to 163ml and from 4ml to 156ml, the mean change of bladder volume at first detrusor overactivity from a decrease of 13ml to an increase of 175ml and from an increase of 10ml to 120ml, a mean decrease of maximum detrusor pressure at first detrusor overactivity from 18 cmH20 to 72 cmH20 and 8 cmH20, and a mean decrease of maximum storage detrusor pressure from 20 cmH20 to 58 cmH2O and from 3 cmH20 to 8 cmH2O, respectively. In chronic TENS, a mean decrease in the number of voids and leakages per 24h ranged from 1 to 3 and from 0 to 4, a mean increase of maximum flow rate from 2ml/s to 7ml/s, and a mean change of postvoid residual from an increase of 26ml to a decrease of 85ml. No TENS-related serious adverse events have been reported. Risk of bias and confounding was high in most studies. CONCLUSIONS Although preliminary data suggest TENS might be effective and safe for treating neurogenic lower urinary tract dysfunction, the evidence base is poor and more reliable data from well-designed randomised controlled trials are needed to make definitive conclusions. PATIENT SUMMARY Early data suggest that transcutaneous electrical nerve stimulation might be effective and safe for treating neurogenic lower urinary tract dysfunction, but more reliable evidence is required.

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En el presente artículo analizamos las condiciones de aparición y los postulados fundamentales de esta escuela, a partir de las rupturas teóricas y políticas que tuvieron lugar en el seno del marxismo inglés por la década de fines de los años cincuenta. Además, nos preguntamos si podemos olvidar la herencia de la teoría crítica de la cultura a partir de la hegemonía de unos estudios culturales que cada vez se alejan más de una perspectiva de sospecha sobre el sistema social para adoptar una actitud académica complaciente y conservadora.

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Este número de Confluencia representa el pensamiento variado, complejo y diverso de quienes elaboraron los artículos y da cuenta de la riqueza de su producción. El amplio abanico que reúne a politólogos/as y trabajadores/as sociales nos introduce en problemáticas actuales de acuciante respuesta, en el repaso de clásicos siempre reactualizados bajo nuevas miradas y en discusiones profundas cuyo fin no es otro que desnaturalizar la percepción de los objetos, poner en crisis el sentido común y construir un conocimiento científico que nos ayude a entender los problemas más serios de la época que nos toca vivir.