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Artículo
Diversities, hyperconvexity and fixed points
(Elsevier, 2014-01)
Diversities have been recently introduced as a generalization of metrics for which a rich tight span theory could be stated. In this work we take up a number of questions about hyperconvexity, diversities and fixed points ...
Tesis Doctoral
Valor pronóstico del análisis semicuantitativo del grado de fijación de la 2.[.[18f]fluoro-2-deoxi-d-glucosa mediante tomografía por emisión de positrones en pacientes pediátricos con linfoma
(2016-01-29)
El linfoma es una neoplasia relativamente frecuente en niños y adolescentes jóvenes constituyendo del 10% al 15% de todas las neoplasias que aparecen durante la edad pediátrica1, 2. Su pronóstico ha mejorado gracias al ...
Artículo
Toughening of complete solid solution cermets by graphite addition
(Elsevier, 2015)
(Ti0.95Ta0.05)(C0.5N0.5)-Co complete solid solution cermets (CSCs) were developed by a mechanochemical synthesis process and a pressureless sintering method. The effect of different percentages of graphite used as a sintering ...
Artículo
A characterization result for the existence of a two-phase material minimizing the first eigenvalue
(Elsevier, 2016-09-19)
Given two isotropic homogeneous materials represented by two constants 0 <α< | |, we consider here the problem consisting in finding a mixture of these materials αχω + β(1 − χω), ω ⊂ RN measurable, with |ω| ≤ κ, such that ...
Artículo
Synergy between gold and oxygen vacancies in gold supported on Zr-doped ceria catalysts for the CO oxidation
(Elsevier, 2015)
The CO oxidation activity of 1 wt.% gold catalysts prepared by depositionprecipitation on a series of ceria doped with Zr supports was studied. The supports (10, 25 and 50 Zr At. %) were synthesized by a pseudo sol-gel ...
Artículo
Inactivation of a heterocyst-specific invertase indicates a principal role of sucrose catabolism in heterocysts of Anabaena sp.
(American Society for Microbiology, 2010)
Anabaena sp. strain PCC 7120 is a filamentous cyanobacterium that carries out N2 fixation in specialized cells called heterocysts, which exchange nutrients and regulators with the filament's vegetative cells that perform ...
Artículo
Study of the dehydroxylation-rehydroxylation of pyrophyllite
(American Ceramic Society, 2010)
Pyrophyllite is a raw material of significant interest due to its large number of applications. Most of these applications require a thermal transformation of pyrophyllite; this thermal transformation implies the release ...
Artículo
Preparation of calcium carbonate as nanoparticles from inorganic precursors and sucrose as additive with potential application as biomaterial
(Elsevier, 2016)
In this communication, it is reported the first relevant results on a broad study on the preparation of calcium carbonate as precipitated nanoparticles of the polymorphs vaterite and calcite. The inorganic precursors are ...
Artículo
The cyanobacterial ribosomal-associated protein LrtA is involved in post-stress survival in synechocystis sp. PCC 6803
(Public Library of Science, 2016)
A light-repressed transcript encodes the LrtA protein in cyanobacteria. We show that halflife of lrtA transcript from Synechocystis sp. PCC 6803 is higher in dark-treated cells as compared to light-grown cells, suggesting ...
Artículo
On the classifying space for proper actions of groups with cyclic torsion
(De Gruyter, 2014-01)
In this paper we introduce a common framework for describing the topological part of the Baum-Connes conjecture for a wide class of groups. We compute the Bredon homology for groups with aspherical presentation, one-relator ...