Browsing Artículos by Title

Now showing items 183-202 of 203

    • A statistical study of heterogeneous nucleation of ice by molecular dynamics 

      Bermúdez Di Lorenzo, Aleida Josefina; Carignano, Marcelo Andrés; Pereyra, Rodolfo Guillermo (2015)
      We studied the stochastic nature of heterogeneous nucleation of supercooled liquid water by molecular dynamics simulations. The systems were composed of 768 molecules; M of them had their positions restricted forming a ...

    • Stopping power of palladium for protons in the energy range 0.300-3.100 MeV 

      Miranda, P. A.; Sepúlveda, A.; Morales, J.R.; Burgos, E.; Fernández, H.; Rodríguez Cabello, Tabatha Pamela (2013)
      The stopping power of palladium for protons has been measured using the transmission method with an overall uncertainty of around 5% over the energy range Ep=(0.300–3.100) MeV. These stopping power data are then compared ...

    • Strictly positive solutions for one dimensional nonlinear elliptic problems 

      Kaufmann, Uriel; Medri, Iván Vladimir (2014)
      We study the existence and nonexistence of strictly positive solutions for the elliptic problems -- in a bounded open interval, with zero boundary conditions, where -- is a strongly uniformly elliptic differential operator, ...

    • Strong cosmic censorship and Misner spacetime 

      Denaro, Pedro Ignacio Esteban; Dotti, Gustavo Daniel (2015)
      Misner spacetime is among the simplest solutions of Einstein's equation that exhibits a Cauchy horizon with a smooth extension beyond it. Besides violating strong cosmic censorship, this extension contains closed timelike ...

    • Structural and magnetic properties of nanocrystalline Bi1-xLaxFeO3 (0.0 ≤ x ≤ 0.4) synthesized by a mechanochemical route 

      Cristóbal, Adrián Alberto; Ramos, Cinthia Paula; Conconi, María Susana; Bercoff, Paula Gabriela; Botta, Pablo Martín (2017)
      Bi1-xLaxFeO3 (0.0 ≤ x ≤ 0.4) powders were prepared by means of a solid acid-base reaction induced by mechanochemical energy. Bi, La and Fe chlorides were high-energy ball-milled with NaOH, yielding a mixture of Bi1-xLaxFeO3 ...

    • Structure constrained by metadata in networks of chess players 

      Almeira, Nahuel; Schaigorodsky, Ana Laura; Perotti, Juan Ignacio; Billoni, Orlando Vito (2017)
      Chess is an emblematic sport that stands out because of its age, popularity and complexity. It has served to study human behavior from the perspective of a wide number of disciplines, from cognitive skills such as memory ...

    • Structure of the Ru, Ag and Te L X-ray emission spectra 

      Rodríguez Cabello, Tabatha Pamela; Sepúlveda Peñaloza, Andrés Humberto; Carreras, Alejo Cristian; Castellano, Gustavo Eugenio; Trincavelli, Jorge Carlos (2016)
      The emission of X-rays in atomic transitions from L-shell vacancy states of Ru, Ag and Te induced by electron incidence was studied. To this end, L X-ray spectra were measured with a wavelength dispersive spectrometer, and ...

    • Study of Kb X-ray emission spectroscopy applied to Mn(2x)V(1-x)O4 (x=0 and1/3) oxyspinel and comparison with XANES 

      Ceppi, Sergio Andrés; Mesquita, A.; Pomiro, Fernando; Pannunzio Miner, Elisa Victoria; Tirao, German Alfredo (2014-03)
      Oxidation state and coordination of transition metal cations seems to be hard to assess when considering multiple cations, each one with different possible oxidation states. In fact, this is the case of the spinel-type ...

    • Study of lead levels in soils by weathering of metallic Pb bullets used in dove hunting in Córdoba, Argentina 

      Rubio, Marcelo; Germanier, Alejandro; Mera, María Fernanda; Faudone, Sonia Nerina; Sbarato, Rubén Darío; Campos, José Manuel; Zampar, Vanesa; Bonzi, Edgardo Venusto; Pérez, Carlos (2014)
      A study of level of Pb in soils of the center-north of the Province of Córdoba, a worldwide recognized tourist region for dove hunting, was performed in this work. The native forest of the region has a great population ...

    • Study of the characteristic parameters of the normal voices of Argentinian speakers 

      Bonzi, Edgardo Venusto; Grad, Gabriela B.; Maggi, Alicia M.; Muñóz, Marta R. (2014)
      The voice laboratory permits to study the human voices using a method that is objective and noninvasive. In this work, we have studied the parameters of the human voice such as pitch, formant, jitter, shimmer and harmonic-noise ...

    • Swap logic 

      Areces, Carlos Eduardo; Fervari, Raúl Alberto; Hoffmann, Guillaume Emmanuel (2014)
      We investigate dynamic modal operators that can change the model during evaluation. We define the logic SL by extending the basic modal language with the ♦ modality, which is a diamond operator that in addition has the ...

    • Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni 

      Blanco, M. Cecilia; De Paoli, Juan M.; Ceppi, Sergio; Tirao, Germán Alfredo; Nassif, Vivian M.; Guimpel, J.; Carbonio, Raúl E. (2014)
      Double perovskites BaLaMnSbO6, BaLaCoSbO6 and BaLaNiSbO6, were synthesized by conventional ceramic method in air, as polycrystalline powders. The Mn and Ni compounds belong to the I 2/m monoclinic space group, while the ...

    • Tailoring optical fields emitted by nanometric sources 

      Bustos Marún, Raúl Alberto; Dente, Axel Damián; Coronado, Eduardo Andrés; Pastawski, Horacio Miguel (2014)
      In this work we study a simple way of controlling the emitted fields of sub-wavelength nanometric sources. The system studied consists of arrays of nanoparticles (NPs) embedded in optical active media. The key concept is ...

    • The growth of ice particles in a mixed phase environment based on laboratory observations 

      Castellano, Nesvit Edit; Ávila, Eldo Edgardo; Burgesser, Rodrigo Exequiel; Saunders, Clive P. R. (2014)
      This paper describes new laboratory observations about the size evolution of ice crystals and cloud droplets immersed in a mixed-phase cloud. The experiments were performed by using a cloud chamber facility for three ...

    • Time and band limiting for matrix valued functions, an example 

      Grünbaum, Francisco Alberto; Pacharoni, María Inés; Zurrián, Ignacio Nahuel (2015)
      The main purpose of this paper is to extend to a situation involving matrix valued orthogonal polynomials and spherical functions, a result that traces its origin and its importance to work of Claude Shannon in laying the ...

    • Unified framework to determine Gaussian states in continuous-variable systems 

      Nicacio, Fernando; Valdés-Hernández, Andrea; Majtey, Ana Paula; Toscano, Fabricio (2017)
      Gaussian states are the backbone of quantum information protocols with continuous-variable systems whose power relies fundamentally on the entanglement between the different modes. In the case of global pure states, knowledge ...

    • Very fast dissolving acid carboxymethylcellulose-rifampicin matrix : development and solid-state characterization 

      Luciani Giacobbe, Laura Carolina; Ramírez Rigo, María Verónica; Garro Linck, Yamila; Monti, Gustavo Alberto; Manzo, Rubén Hilario; Olivera, María Eugenia (2017)
      One of the main obstacles to the successful treatment of tuberculosis is the poor and variable oral bioavailability of rifampicin (RIF), which is mainly due to its low hydrophilicity and dissolution rate. The aim of this ...

    • Virtual laboratory for a first experience in dynamics 

      Ré, Miguel Ángel; Giubergia, María Fernanda (2014)
      New technologies contribute to the learning process of scientific disciplines. In particular Physics learning may take advantage of these techniques by implementing experimental practices in simulation environments. Our ...

    • Water and membrane dynamics in suspensions of lipid vesicles functionalized with poly(ethylene glycol)s 

      Clop, Eduardo Matias; Chattah, Ana Karina; Perillo, María Angélica (2014-05-08)
      The present work was aimed at studying the molecular dynamics at different levels of model membranes having a simulated glycoclix, with focus on the molecular crowding conditions at the lipid–water interfacial region. Thus, ...

    • Weighted estimates for integral operators on local BMO type spaces 

      Ferreyra, Élida Vilma; Flores, Guillermo Javier (2015)
      We prove the weighted boundedness for a family of integral operators Tα on Lebesgue spaces and local BMO type spaces. To this end we show that Tα can be controlled by the Calder ́on operator and a local maximal operator. ...