Paula Lopez

University of Veterinary Medicine Kosice, Escuela de Ciencias Jurídicas y Sociales, Alumna

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Geological integration and evaluation of Northern Monagas, Eastern Venezuelan Basin

Geological Society, London, Special Publications, 1990

... In 1987 the prospect of Musipan and El Carito (Musi-IX and Cari-IX wells) were drilled on adj... more

Mate substitutes or adulterants: study of xanthine content

Phytotherapy Research, 1998

The xanthine (caffeine, theobromine and theophylline) content of decoctions of seven Ilex spp. wa... more The xanthine (caffeine, theobromine and theophylline) content of decoctions of seven Ilex spp. was studied by HPLC using UV and a photodiode-array detector. Ilex paraguariensis ('Mate' or 'Yerba Mate') is widely used in South America as a tealike beverage and the other six species are used as substitutes or adulterants of it. The results showed that I. paraguariensis has the highest amounts of caffeine and theobromine. Traces of caffeine were detected in I. theezans, I. dumosa, I. microdonta and I. pseudobuxus. Traces of theobromine were detected in I. argentina and I. microdonta. From the seven Ilex species investigated, theophylline was detected in I. theezans, I. dumosa and I. pseudobuxus, but only I. pseudobuxus has quantifiable amounts: 0.6 mg% (6 ppm).

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Performance analysis of high-speed MOS transistors with different layout styles

Several layout schemes for MOS transistors have been investigated and compared in terms of speed ... more Several layout schemes for MOS transistors have been investigated and compared in terms of speed and layout area. Among them, the so-called closed, donut or doughnut transistors have been characterized, obtaining an analytical expression for the calculation of the equivalent W/L ratio for a general n-side regular polygonal-shape. The comparisons show that with quasi-minimum dimension transistors and L=0.35 μm, reductions

CNN-based 3D thermal modeling of the soil for antipersonnel mine detection

The inherent analogies between the defining equation of CNN and that of heat transfer are well kn... more The inherent analogies between the defining equation of CNN and that of heat transfer are well known. In this paper, we explore the projection of a 3D thermal model of the soil on this kind of structure. In so doing, reliable and fast prediction of the thermodynamic behavior of soil subject to known boundary conditions can be obtained. That way, it is possible to characterize different kinds of soil in terms of its thermal signature. Based on that knowledge, and using an inverse approach, we perform the detection of buried land mines.

Design and training of multilayer discrete time cellular neural networks for antipersonnel mine detection using genetic algorithms

In this work we present a novel strategy for the simultaneous design and training of multilayer d... more In this work we present a novel strategy for the simultaneous design and training of multilayer discrete-time cellular neural networks. This methodology is applied to the detection of surface-laid antipersonnel mines in infrared imaging. The procedure is based on the application of genetic algorithms for both network design and learning task

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Thermal infrared identification of buried landmines

This paper deals with a three-dimensional thermal model for landmine detection problems and an in... more This paper deals with a three-dimensional thermal model for landmine detection problems and an inverse problem for reconstructing the physical parameters of buried objects. Moreover, solutions are given for the estimation of the soil thermal diffusivity and meteorological parameters, needed for solving the inverse problem. The paper describes the main fundamental principles of thermal modelling for buried object identification and illustrates the results on data acquired from a real minefield, together with qualitative and quantitative results illustrating the validity of the model.

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Ramo: Negocio Juídico Vespertino Docente: Gonzalo Severin Fuster Integrantes

Para comenzar con los vicios de la voluntad, podríamos decir en primer término que el error es la... more Para comenzar con los vicios de la voluntad, podríamos decir en primer término que el error es la disconformidad del pensamiento con la realidad, también se define como el concepto errado que se tiene de la Ley, de una persona o de una cosa; el no saber algo también es error (sobre la cosa misma).

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Paula Lopez

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