6,389 research outputs found
Symphonia de Sancta Maria. La "mística dogmática" de Hildegard von Bingen
La presente investigación aborda la
pregunta: ¿Hildegard es una verdadera mística
en la Symphonia de Sancta Maria de la Visio
XIII de Scivias? Se intenta demostrar que Hildegard
es una eminente voz teológica dogmática,
pero que como tal articula una importante
mística, teniendo esta su paradigma en
María, la profetisa. La interpretación del complejo
«Cántico de María» esclarece la racionalidad
propia de dicha Symphonia, su índole
pneumatológica y la mirada amorosa del Padre
Supremo sobre María, para verificar la
concreción dogmática de la mística hildegardiana
en cuanto mariana. En efecto, dicha interpretación
evidencia que Hans Urs von Balthasar
con razón llama a Hildegard una
«mística dogmática»
El misterio del ser en Alberto Magno, Super Dionysii Epistulas
El presente estudio aborda el misterio del ser en Alberto
Magno Super Dionisii Epistulas y responde a la pregunta por el nexo
entre el ser y los entes. Esta cuestión se torna misterio tan pronto que
desde la «forma» de cada existente irrumpe aquel «esplendor» que
el Doctor Universalis identifica -como otros autores antiguos- con el
Espíritu Santo en cuanto «gloria». Este Espíritu Infinito y Creador no
solo comunica el ser, llamándolo a la existencia a través de los entes, a
modo del bonum, sino lo in-forma, es decir, les da a todos la «forma»,
al modo como Él mismo, siendo la «forma o cuasi-forma» en Dios,
posibilita al Padre ser Padre y al Hijo ser Hijo. Tal in-formación, de
modo semejante con mayor desemejanza, constituye el origen último
y fundante de todo cuanto existe.The present study approaches the mystery of being in
Albert the Great Super Dionisii Epistulas and answers to the question
of the nexus of existence and being. This cuestion turns mystery
as soon as from the «form» of each being irrupts that «splendour»,
which the Doctor Universalis identifies- likewise other earliers authors –with the Holy Spirit as «glory». The Infinit Spirit and Creator
not only comunicates the existence of the beings- calling them to be as
the bonum, but also in-formes them with the form similar of Himself,
who is the «form - quasi-form» in God, facilitating to the Father be
Father and to the Son be Son. Thus in-formation, in similitude with
more dissimilitude, constituies the last founding origen of whole existing
things.Fil: Meis, Anneliese
Statistical modeling for the monthly streamflow in the south of the la Plata Basin
Los continuos estudios hidrológicos en la Cuenca del Plata son necesarios no solamente por ser la misma una fuente capaz de proveer energía a diferentes países en Sudamérica, navegabilidad y suministrar agua potable, sino también por los severos daños ocasionados por las frecuentes inundaciones que se producen dicha cuenca. En este trabajo se propuso emplear una modelación estadística basada en modelos estacionales autoregresivos integrados de medias móviles (SARIMA), con el principal objetivo de representar y pronosticar las series temporales del caudal mensual en distintas estaciones de la baja Cuenca del Plata. Se plantearon modelos apropiados para la serie temporal del caudal mensual en la estación Timbúes (Río Paraná) para cinco subperíodos temporales de veinte años desde 1913 a 2012. Para las estaciones de Corrientes, Timbúes y Paso de los Libres se realizó un pronóstico a 32 meses (enero/2013-agosto/2015) teniendo en cuenta el último subperíodo: 1993-2012. La validación de los modelos fue incluida. Además, se realizó un estudio de distintos posibles escenarios a futuro en la estación Corrientes, contrastando los mismos con los valores registrados en ese período. En este sentido, con el análisis realizado, se pretendió encontrar modelos estadísticos que permitan contribuir al monitoreo del caudal mensual en la Cuenca del Plata, con el objetivo de asistir a los tomadores de decisión en la mitigación de los impactos negativos en la región.Hydrological studies in the La Plata basin are important as it is a source capable of providing water to several countries in South America, a large navigable network and rich in mineral resources. However, the necessity of these studies is highlighted by the frequent floods that occur in it. In this work, it is proposed to employ the statistical modelling through the Seasonal Autoregressive Integrated Moving Average (SARIMA) models, with the aim to represent and forecast the time series for monthly streamflow in different stations in the La Plata Basin. Proper models were proposed for the monthly streamflow time series in Timbúes station (Paraná River) for five subtemporal periods of twenty years from 1913 to 2012. Moreover, for Corrientes, Timbúes and Paso de los Libres stations, a forecast for 32 months (January/2013-August/2015) was carried out taking into consideration the last subperiod, 1993-2012. The validation of the models was considered. Finally, forecast with different future scenarios were done in Corrientes station, and a comparison with the gauged values was included. In this way, it was pretended to find a statistical models in order to contribute to the monitoring of the monthly discharge in the La Plata Basin with the objective to mitigate negative impacts in the regionFil: Meis, Melanie. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Llano, Maria Paula. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Molecular dynamics simulations of oxide memristors: crystal field effects
We present molecular-dynamic simulations of memory resistors (memristors)
including the crystal field effects on mobile ionic species such as oxygen
vacancies appearing during operation of the device. Vacancy distributions show
different patterns depending on the ratio of a spatial period of the crystal
field to a characteristic radius of the vacancy-vacancy interaction. There are
signatures of the orientational order and of spatial voids in the vacancy
distributions for some crystal field potentials. The crystal field stabilizes
the patterns after they are formed, resulting in a non-volatile switching of
the simulated devices.Comment: 9 pages, 3 figure
First hospital outbreak of the globally emerging Candida auris in a European hospital
Background: Candida auris is a globally emerging multidrug resistant fungal pathogen causing nosocomial transmission. We report an ongoing outbreak of C. auris in a London cardio-thoracic center between April 2015 and July 2016. This is the first report of C. auris in Europe and the largest outbreak so far. We describe the identification, investigation and implementation of control measures. Methods: Data on C. auris case demographics, environmental screening, implementation of infection prevention/control measures, and antifungal susceptibility of patient isolates were prospectively recorded then analysed retrospectively. Speciation of C. auris was performed by MALDI-TOF and typing of outbreak isolates performed by amplified fragment length polymorphism (AFLP). Results: This report describes an ongoing outbreak of 50 C. auris cases over the first 16 month (April 2015 to July 2016) within a single Hospital Trust in London. A total of 44 % (n = 22/50) patients developed possible or proven C. auris infection with a candidaemia rate of 18 % (n = 9/50). Environmental sampling showed persistent presence of the yeast around bed space areas. Implementation of strict infection and prevention control measures included: isolation of cases and their contacts, wearing of personal protective clothing by health care workers, screening of patients on affected wards, skin decontamination with chlorhexidine, environmental cleaning with chorine based reagents and hydrogen peroxide vapour. Genotyping with AFLP demonstrated that C. auris isolates from the same geographic region clustered. Conclusion: This ongoing outbreak with genotypically closely related C. auris highlights the importance of appropriate species identification and rapid detection of cases in order to contain hospital acquired transmission
Vector potential quantization and the photon wave-particle representation
5th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare 2016)International audienceThe quantization procedure of the vector potential is enhanced at a single photon state revealing the possibility for a simultaneous representation of the wave-particle nature of the photon. Its relationship to the quantum vacuum results naturally. A vector potential amplitude operator is defined showing the parallelism with the Hamiltonian of a massless particle. It is further shown that the quantized vector potential satisfies both the wave propagation equation and a linear time-dependent Schrödinger-like equation
Differential Kinetics of Aspergillus nidulans and Aspergillus fumigatus Phagocytosis
Acknowledgements: The authors would like to acknowledge Fraser P. Coxon and Ian Ganley for providing LC3-GFP-mCherry BMDMs. M.S.G. was supported by an FEMS research grant and F.L.v.d.V. was supported by ZonMW under the name EURO-CMC frame of E-Rare-2, the ERA-Net for Research on Rare Diseases.Peer reviewe
Heat transfer enhancement in micro-channels caused by vortex promoters
This paper presents a systematic numerical study of the effects of heat transfer and pressure drop produced by vortex promoters of various shapes in a 2D, laminar flow in a micro-channel. The liquid is assumed to be water, with temperature dependent viscosity and thermal conductivity. It is intended to obtain useful design criteria of micro-cooling systems, taking into account that practical solutions should be both thermally efficient and not expensive in terms of the pumping power. Three reference cross sections, namely circular/elliptical, rectangular, and triangular, at various aspect ratios are considered. The effect of the blockage ratio, the Reynolds number, and the relative position and orientation of the obstacle are also studied. Some design guidelines based on two figures of merit (related to thermal efficiency and pressure drop, respectively), which could be used in an engineering environment are provided
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