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La población nativa del Brasil utiliza extractos fluidos, decocción e infusión de las raíces y hojas de Petiveria alliaceae L. (Phytolacaceae, guiné) ante a los más diferentes tipos de síntomas y también como sed...

Requirements Engineering is the key issue for the development of Software Systems, that meet the expectations of their customers and users, are delivered on time, and are developed within budget. This book intends to pr...

The Student’s Guide to VHDL teaches the fundamental modeling features of VHDL, showing how the features are used for the design of digital systems. It is organized so that it can be read linearly from front to back, as...

The environment of the Wolf-Rayet (WR) star WR 130 has been studied using the 21 cm H I line and radio continuum data at 408 and 1420 MHz obtained with the Dominion Radio Astrophysical Observatory (DRAO) Synthesis Telesc...

Se presenta una corta historia de estrellas binarias desde los primeros descubrimientos. Se discuten ejemplos actualmente conocidos de sistemas con componentes de temperatura y masas más altas. A short history of binary...

The key problem in fractal image compression is that of obtaining the IFS code (a set of linear transformations)which approximates a given image with a certain prescribed accuracy (inverse IFS problem).In this paper,we a...

Even though the result recently referred to as the "Frisch-Waugh-Lovell theorem" (FWL theorem, henceforth) has been around for a long time, it is relatively recently that it has been widely used by econometricians as a p...

Mobile agent systems have received important attention in the last years as a new programming paradigm for widely distributed and heterogeneous systems. In this article, a multi-paradigm approach for the development of i...

In this article we consider the problem of computing approximations to the second derivatives of functions of n variables using finite differences. We show how to derive different formulas and how to comput the errors of...

Una nueva especie del complejo Liolaemus darwinii es descrita para el centro de la provincia de Mendoza, Argentina. Se parece más a L. olongasta y L. laurenti en que los machos adultos tienen pigmento negro en el pliegu...

La fracción acuosa del extracto etanólico obtenido de las hojas (AFL) de Cissampelos sympodialis ha sido evaluada con respecto a la actividad antiinflamatoria, ya que en medicina popular es usada para esta finalidad. E...

Sapindus saponaria L., Sapindaceae es una planta arbórea de amplia distribución en el territorio brasileño; sus frutos son usados popularmente para combatir úlceras e inflamaciones de la piel. El presente trabajo tuv...

In this paper we show an algorithm for dynamic reconfiguration of distributed applications based on the mobile agent model. We also show that the proposed algorithm can be easily implemented in the IPL language, a langua...

In an earlier attempt to explain the observed excess in the IR flux of Be stars, we have analyzed the dielectronic recombination (DR) of Mg II in stellar envelopes and the influence of this atomic process on the stellar ...

The 1980s have been dubbed the “lost decade” in Latin America because during those harsh ten years GDP per capita declined in that region at an average annual rate of 1.5%, in contrast with the 2.3% and 1.8% increase...

Low resolution spectra in the λλ3500-4600 Å wavelength range of 23 stars with the B[e] phenomenon are presented. Spectral classification of 15 program stars was performed using the BCD spectrophotometric system, based...

Over the last decade the Argentine banking industry has been subject to important regulatory changes, increased internationalization and restructuring. The way in which this process has affected the degree of competition...

In this paper we study dollarization as a commitment device that the Central Bank could use to avoid getting involved in an undesirable banking-sector bailout. We show how a political process could induce an equilibrium ...

We propose to generalize Bekenstein model for the time variation of the fine structure "constant" αem to QCD strong coupling constant αS. We find that, except for a “fine tuned” choice of the free parameters, the e...

This paper studies the interest-rate-driven business cycles of a small open economy (SOE). For than end a costly operated banking system is added to the standard real-business-cycles model. Banks are the only domestic ag...

Based on CO (2-1) observations obtained with the Swedish-ESO Submillimeter Telescope, the distribution of molecular material associated with the Wolf-Rayet ring nebula NGC 2359 has been determined. The angular resolution...

It has been recently claimed that cosmologies with time dependent speed of light might solve some of the problems of the standard cosmological scenario, as well as inflationary scenarios. In this letter we show that most...

We present two-colour CCD imaging of 2060 Chiron obtained between 1996 and 1998 with the 2.15 m telescope at CASLEO (San Juan, Argentina). These post-perihelion observations show that Chiron was then near its historical ...

We fit the BOOMERANG, MAXIMA and COBE/DMR measurements of the cosmic microwave background anisotropy in spatially flat cosmological models where departures from standard recombination of the primeval plasma are parametri...