Ciencia y Tecnología

Apertura de ANR 4800 2017 C1

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La Agencia Nacional de Promoción Científica y Tecnológica, a través del Fondo Tecnológico Argentino (FONTAR), llaman a la presentación de Proyectos de Innovación Tecnológica para la adjudicación de Aportes No Reembolsables (ANR 4800) destinados al financiamiento de proyectos de desarrollo tecnológico presentados por empresas en el marco del Programa de Innovación Tecnológica V (PIT V).

Apertura de ANR SOCIAL 2017 C2

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La Agencia Nacional de Promoción Científica y Tecnológica, a través del Fondo Tecnológico Argentino (FONTAR), invita a la presentación de Proyectos de Innovación Tecnológica para la adjudicación de Aportes No Reembolsables destinados al financiamiento de proyectos de desarrollo tecnológico con Impacto Social y Territorial presentados por empresas, cooperativas y redes de empresas en el marco del Programa de Innovación Tecnológica V (PIT V).

La Agencia participó en ExpoFyBI

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La feria anual del sector farmacéutico y bioquímico contó con un espacio institucional dedicado a la promoción de las líneas de financiamiento que posee el organismo destinadas a las mejoras tecnológicas y la optimización de la producción en dicha industria.

Creep and thermal rounding close to the elastic depinning threshold

CONICET Digital -

Creep and thermal rounding close to the elastic depinning threshold Purrello, Víctor Hugo; Iguain, Jose Luis; Kolton, Alejandro Benedykt; Jagla, Eduardo Alberto We study the slow stochastic dynamics near the depinning threshold of an elastic interface in a random medium by solving a particularly suited model of hopping interacting particles that belongs to the quenched-Edwards-Wilkinson depinning universality class. The model allows us to compare the cases of uniformly activated and Arrhenius activated hops. In the former case, the velocity accurately follows a standard scaling law of the force and noise intensity with the analog of the thermal rounding exponent satisfying a modified "hyperscaling" relation. For the Arrhenius activation, we find, both numerically and analytically, that the standard scaling form fails for any value of the thermal rounding exponent. We propose an alternative scaling incorporating logarithmic corrections that appropriately fits the numerical results. We argue that this anomalous scaling is related to the strong correlation between activated hops that, alternated with deterministic depinning-like avalanches, occur below the depinning threshold. We rationalize the spatiotemporal patterns by making an analogy of the present model in the near-threshold creep regime with some well-known models with extremal dynamics, particularly the Bak-Sneppen model.

ANR 3500 2016 C1, C2 y C3

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El Fondo Tecnológico Argentino (FONTAR) anuncia los resultados del proceso de Reconsideración para la convocatoria ANR 3500 2016 C1, C2 y C3 mediante Resolución de Directorio N°381,382 y 398/17.

ANR INT 3500

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El Fondo Tecnológico Argentino (FONTAR) anuncia los resultados del proceso de evaluación para la ventanilla mediante Resolución de Directorio N°397/17.

Atomic resolution STEM-EELS studies of defects and local structural distortions in oxide interfaces

CONICET Digital -

Atomic resolution STEM-EELS studies of defects and local structural distortions in oxide interfaces Sánchez Santolino, G.; Roldan, M. A.; Qiao, Qiao; Begon Lours, L.; Frechero, Marisa Alejandra; Salafranca, J.; Mishra, R.; Leon, C.; Pantelides, S. T.; Pennycook, S. J.; Villegas, J. E.; Santamaria, J.; Varela, M. Doped complex oxides show a wide range of interesting properties due to a strong interplay andcompetition between lattice, spin, and charge degrees of freedom. In these systems, subtle changes inlocal structure or chemistry may result in colossal responses in macroscopic physical behavior. In thistalk we will apply atomic resolution aberration corrected scanning transmission electron microscopy(STEM) and electron energy-loss spectroscopy (EELS) to the study of the chemistry and local structurearound defects, near complex oxide interfaces, and grain boundaries. Thanks to spherical aberrationcorrection, both spatial resolution and sensitivity limits attainable in the STEM have improved down tothe single-atom level, resulting in unprecedented contrast and signal-to-noise ratio improvements in both imaging and EELS. We will discuss a few examples where atomic resolution compositional mapping constitutes a key task to understand the system physical properties, highlighting the importance of considering artifacts during quantification.

Metagenome-derived draft genome sequence of acidithiobacillus ferrooxidans RV1 from an abandoned gold tailing in neuquén, Argentina

CONICET Digital -

Metagenome-derived draft genome sequence of acidithiobacillus ferrooxidans RV1 from an abandoned gold tailing in neuquén, Argentina Ulloa, José Ricardo; Moya Beltrán, Ana; Issotta, Francisco; Nuñez, Harold; Covarrubias, Paulo C.; Donati, Edgardo Ruben; Quatrini, Raquel; Giaveno Filippa, Maria Alejandra In this work we report the metagenome-derived draft genomic sequence of an enrichment culture dominated by A. ferrooxidans obtained from an airlift bioreactor inoculated with the microbial consortium recovered from the “Relave Viejo” tailing. The genome of this culture was assembled de-novo and by reference, generating a consensus assembly of 3.0 Mb. On the basis of 16S rRNA (100 % identity), average nucleotide identity analysis (99.33% identity) and in silico DNA-DNA hybridization against A. ferrooxidans ATCC 23270T (97.9%), the recovered genome is confirmed to pertain to A. ferrooxidans species. Comparative genomics results are presented to uncover the genetic traits of the variant surviving lime treatment and to further explore the genomic diversity of these model iron oxidizing species.

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