Now showing items 1-20 of 41

    • Solid-state studies of the crystalline/amorphous character in linear Poly(ethylenimine hydrochloride) (PEI-HCl) polymers and their copper complexes 

      Lázaro Martínez, Juan Manuel; Rodríguez Castellón, Enrique; Vega, Daniel; Monti, Gustavo Alberto; Chattah, Ana Karina (2015)
      Linear poly(ethylenimine hydrochloride) (PEI-HCl) polymers with different molecular weights (22, 87, and 217 kDa) and their copper complexes (Cu−PEI) were studied with particular attention to the crystalline/amorphous ...
    • 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 ...
    • Rare event simulation with fully automated Importance splitting 

      Budde, Carlos Esteban; D'Argenio, Pedro Ruben; Hermanns, Holger (2015)
      Probabilistic model checking is a powerful tool for analysing probabilistic systems but it can only be efficiently applied to Markov models. Monte Carlo simulation provides an alternative for the generality of stochastic ...
    • Depth distribution of martensite in plasma nitrided AISI H13 steel and its correlation to hardness 

      Jacobsen, S. D.; Hinrichs, R.; Baumvol, I. J. R.; Castellano, Gustavo Eugenio; Vasconcellos, M. A. Z. (2015)
      The depth distributions of hardness, nitrogen, and crystallographic phases in the diffusion zone of plasma nitrided AISI H13 steel were determined by microindentation, electron microprobe, grazing incidence X-ray diffraction, ...
    • Crossed extensions of the corepresentation category of finite supergroup algebras 

      Mejía Castaño, Adriana; Mombelli, Martín (2015)
      We present explicit examples of finite tensor categories that are C2-graded extensions of the corepresentation category of certain finite-dimensional non-semisimple Hopf algebras
    • A multivariate geostatistical approach for landscape classification from remotely sensed image data 

      Vallejos, Ronny; Mallea, Adriana; Herrera, Myriam; Ojeda, Silvia María (2015)
      This paper proposes a methodology to address the classification of images that have been acquired from remote sensors. One common problem in classification is the high dimensionality of multivariate characteristics. The ...
    • Experimental quantification of decoherence via the Loschmidt echo in a many spin system with scaled dipolar Hamiltonians 

      Buljubasich, Lisandro; Sánchez, Claudia M.; Dente, Axel D.; Levstein, Patricia R.; Chattah, Ana K.; Pastawski, Horacio M. (2015)
      We performed Loschmidt echo nuclear magnetic resonance experiments to study decoherence under a scaled dipolar Hamiltonian by means of a symmetrical time-reversal pulse sequence denominated Proportionally Refocused Loschmidt ...
    • La realidad de los átomos 

      Pury, Pedro Ángel (2015)
      En este trabajo nos proponemos reconsiderar, desde una perspectiva histórica, la contribución de Albert Einstein a la de la teoría molecular de la realidad con sus trabajos sobre el movimiento Browniano.
    • Neutrinos 

      Bonzi, Edgardo Venusto (2015)
      En este artículo vamos a repasar brevemente el Modelo Estándar de Partículas, luego haremos una revisión cronológica del descubrimiento del neutrino. Por último mencionaremos el Observatorio de Neutrinos de Sudbury y ...
    • Effects of magnetic field gradients on the aggregation dynamics of colloidal magnetic nanoparticles 

      Heinrich, Dirk; Goñi, Alejandro R.; Osán, Tristán Martín; Cerioni, Lucas Matías Ceferino; Smessaert, Anton; Klapp, Sabine H. L.; Faraudo, Jordi; Pusiol, Daniel José; Thomsen, Christian (2015)
      We have used low-field 1H nuclear-magnetic resonance (NMR) spectroscopy and molecular dynamics (MD) to investigate the aggregation dynamics of magnetic particles in ionic ferrofluids (IFFs) in the presence of magnetic field ...
    • Examples of extensions of hopf algebras 

      Andruskiewitsch, Nicolás; Müller Lopes Rocha, Monique (2015)
      We give some examples of, and raise some questions on, extensions of semisimple Hopf algebras.
    • Smart sampling for lightweight verification of Markov decision processes 

      D'Argenio, Pedro Ruben; Legay, Axel; Sedwards, Sean; Traonouez, Louis-Marie (2015)
      Markov decision processes (MDP) are useful to model optimisation problems in concurrent systems. To verify MDPs with efficient Monte Carlo techniques requires that their nondeterminism be resolved by a scheduler. Recent ...
    • Dynamic characterization of crystalline and glass phases of deuterated 1,1,2,2 tetrachloroethane 

      Pérez, Silvina Claudia; Zuriaga, Mariano José; Serra, Pablo; Wolfenson, Alberto Enrique; Negrier, Philippe; Tamarit, Josep Lluis (2015)
      A thorough characterization of the γ, β, and glass phases of deuterated 1,1,2,2 tetrachloroethane (C2D2Cl4) via nuclear quadrupole resonance and Molecular Dynamic Simulations (MDSs) is reported. The presence of molecular ...
    • Reaction rate in an evanescent random walkers system 

      Ré, Miguel Ángel; Bustos, Natalia Carolina (2015)
      Diffusion mediated reaction models are particularly ubiquitous in the description of phys-ical, chemical or biological processes. The random walk schema is a useful tool for formu-lating these models. Recently, evanescent ...
    • Monte Carlo simulation of characteristic secondary fluorescence in electron probe microanalysis of homogeneous samples using the splitting technique 

      Petaccia Trobatto, Mauricio Germán; Seguí Osorio, Silvina Inda María; Castellano, Gustavo Eugenio (2015)
      Electron probe microanalysis (EPMA) is based on the comparison of characteristic intensities induced by monoenergetic electrons. When the electron beam ionizes inner atomic shells and these ionizations cause the emission ...
    • Searches for continuous gravitational waves from nine young supernova remnants 

      Aasi, J.; Abbott, P.; Abbott, R.; Abbott, T.; Abernathy, M. R.; Acernese, F.; Domínguez, Alfredo Eduardo; Maglione, César Germán; Ortega Larcher, Walter Emanuel; Quiroga, Gonzalo Damián; Reula, Oscar Alejandro (2015)
      We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not ...
    • Pure type systems with explicit substitutions 

      Fridlender, Daniel; Pagano, Miguel (2015)
      We introduce a new formulation of pure type systems (PTSs) with explicit substitution and de Bruijn indices and formally prove some of its meta-theory. Using techniques based on Normalisation by Evaluation, we prove that ...
    • On Dirichlet problems with singular nonlinearity of indefinite sign 

      Godoy, Tomás Fernando; Kaufmann, Uriel (2015)
      Let Ω be a smooth bounded domain in RN , N ≥ 1, let K, M be two nonnegative functions and let α, γ > 0. We study existence and nonexistence of positive solutions for singular problems of the form −Δu = K(x)u−α − λM (x)u−γ ...
    • From a systems theory of sociology to modeling the onset and evolution of criminality 

      Bellomo, Nicola; Colasuonno, Francesca; Knopoff, Damián Alejandro; Soler, Juan (2015)
      This paper proposes a systems theory approach to the modeling of onset and evolution of criminality in a territory. This approach aims at capturing the complexity features of social systems. Complexity is related to the ...
    • Invariant solutions to the conformal Killing–Yano equation on Lie groups 

      Andrada, Adrián Marcelo; Barberis, María Laura; Dotti, Isabel Graciela (2015)
      We search for invariant solutions of the conformal Killing–Yano equation on Lie groups equipped with left invariant Riemannian metrics, focusing on 2-forms. We show that when the Lie group is compact equipped with a ...