2,573 research outputs found

    El día "uno" de la Creación. Interpretación del Gen 1,1-5 según Filón de Alejandría

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    Los primeros versículos del Génesis, por su contenido tanto respecto a la Creación como a la Trinidad, fueron un lugar de interés para los escritores cristianos primitivos y para el nacimiento de la Teología. Por un lado, las primeras palabras reveladas brindan argumentos a la cosmovisión cristiana en la doctrina sobre el Dios Creador y Providente y sobre la dependencia que el mundo tiene de sus manos, frente a filosofías contemporáneas negadoras de la creación o fatalista

    La aparición de las normativas

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    Verificación de la seguridad estructural en las cargas verticales

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    Formacion del inmunocomplejo radiactivo en un ria de doble anticuerpo.

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    A model has been produced for the kinetic and equilibrium study of antigen-antibody reactions in the radioimmunoassay (RIA) of C-Peptide double antibody. The aim is (1) to characterise the influence of initial concentrations of labelled (M) and unlabelled (Q) antigen and that of the initial concentration of the antibody in solution (P), and (2) to study the binding of the immunocomplex (PM) to the second antibody (J) immobilised on a bead, and the replacement of M by Q in the PMJ immunocomplex. In order to study the effect of such variables, 44 experiments were conducted. The results are in line with the model proposed.Se ha elaborado un modelo para el estudio de la cinética y equilibrio de las reacciones antígeno-anticuerpo implicadas en el radioinmunoanálisis (RIA) de doble anticuerpo correspondiente al Péptido C. Se pretende caracterizar la influencia de las concentraciones iniciales de antígeno marcado (M) y no marcado (Q) sobre la formación del inmunocomplejo (PM) al segundo anticuerpo (J) inmovilizado sobre una bola. Se realizan 30 experiencias para el estudio del efecto de las variables antes mencionadas. Los resultados obtenidos son concordantes con el modelo propuesto

    The Baltic banking system in the enlarged European Union: The effect of the financial crisis on efficiency

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    The main objective of this study is to analyse the evolution of banking efficiency in the Baltic countries after their accession to the EU and during the financial crisis, and to check whether there are significant differences between these countries as a consequence of their particular characteristics. To that end, we have estimated the evolution of cost and profit efficiency in the Baltic countries in the context of the enlarged EU during the period 2000-2013 using Bayesian stochastic frontier models. Our results show the greater robustness of Estonian banking in terms of profits during the financial crisis in comparison to their neighbours. Additionally, Baltic banking has recovered its profit efficiencies very quickly after the financial crisis. However, cost efficiency is still at low levels in line with the other European countries

    Live demonstration: Neuro-inspired system for realtime vision tilt correction

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    Correcting digital images tilt needs huge quantities of memory, high computational resources, and use to take a considerable amount of time. This demonstration shows how a spikes-based silicon retina dynamic vision sensor (DVS) tilt can corrected in real time using a commercial accelerometer. DVS output is a stream of spikes codified using the address-event representation (AER). Event-based processing is focused on change in real time DVS output addresses. Taking into account this DVS feature, we present an AER based layer able to correct in real time the DVS tilt, using a high speed algorithmic mapping layer and introducing a minimum latency in the system. A co-design platform (the AER-Robot platform), based into a Xilinx Spartan 3 FPGA and an 8051 USB microcontroller, has been used to implement the system

    Neuro-inspired system for real-time vision sensor tilt correction

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    Neuromorphic engineering tries to mimic biological information processing. Address-Event-Representation (AER) is an asynchronous protocol for transferring the information of spiking neuro-inspired systems. Currently AER systems are able sense visual and auditory stimulus, to process information, to learn, to control robots, etc. In this paper we present an AER based layer able to correct in real time the tilt of an AER vision sensor, using a high speed algorithmic mapping layer. A codesign platform (the AER-Robot platform), with a Xilinx Spartan 3 FPGA and an 8051 USB microcontroller, has been used to implement the system. Testing it with the help of the USBAERmini2 board and the jAER software.Junta de Andalucía P06-TIC-01417Ministerio de Educación y Ciencia TEC2006-11730-C03-02Ministerio de Ciencia e Innovación TEC2009-10639-C04-0

    Composition and depth of Extensive Green Roof substrate affect the growth of two Mediterranean plant species under different irrigation conditions

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    Recently, the design of new substrates capable of sustain an adequate plant development in Green Roof systems under Mediterranean climatic conditions is a challenge due to the unfavorable hot and dry conditions. The use of suitable lightweight substrates which can promote an adequate plant growth and maintenance over time is an important achievement as well as the plant species selection. The most commonly used plants in Green Roof systems are the Crassulacean since they are perfectly fitted to drought conditions. In this sense, the use of herbaceous and shrub endemic Mediterranean species could provide an added value in green roof designing under semi‐arid conditions. Therefore, we aim to evaluate the growth of two endemic species (Silene vulgaris (Moench) Garcke and Lagurus ovatus L.) in two different substrate types with two different depths. To be precise, one substrate was made of a mixture of compost and crushed bricks (CB) (1:4; v:v), and the other one was made of compost‐soil‐bricks (CSB) (1:1:3; v:v:v). Physichochemical, biochemical as well as microbiological properties were evaluated in both substrates in order to study its suitability as plant growth basis. The results showed that both substrates showed adequate physichochemical properties to promote plant growth, but the CSB mixture presented better biochemical and microbiological properties than CB, allowing a suitable environment for microbial and plant development. Furthermore, both plant species had higher coverage and grater SPAD values in CSB than in CB mixture, and this growing was higher above deeper substrates (10 cm) than on 5 cm‐substrate depth, being this parameter more significant for plant development than substrate composition.The authors thank the INNPACTO project (IPT‐ 2011‐1017‐310000) by funding from the relevant trial
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