Browsing Artículos 2014 by Title
Now showing items 10-29 of 106
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Classification of integral modular categories of Frobenius–Perron dimension pq4 and p2q2
(2014)We classify integral modular categories of dimension pq4 and p2q2, where p and q are distinct primes. We show that such categories are always group-theoretical, except for categories of dimension 4q2. In these cases there ... -
Clustering and decoherence of correlated spins under double quantum dynamics
(2014)We present an improved approach for the study of the evolution of spin correlations and decoherence in multiple quantum nuclear magnetic resonance experiments. The infinite system, constituted by the protons of a polycrystalline ... -
The cohomology of filiform Lie algebras of maximal rank
(2014)We describe the structure of the cohomology of the filiform Lie algebras and as a module over their (2-dimensional) torus of derivations. Our approach relies on the fact that both filiform algebras have an ideal of codimension ... -
Completeness in hybrid type theory
(2014)We show that basic hybridization (adding nominals and @ operators) makes it possible to give straightforward Henkin-style completeness proofs even when the modal logic being hybridized is higher-order. The key ideas are ... -
Conjugacy classes of p-cycles of type D in alternating groups
(2014-10)We classify the conjugacy classes of $p$-cycles of type D in alternating groups. This finishes the open cases in [AFGV]. Also we determine all the subracks of those conjugacy classes which are not of type D. -
Constitutive hippocampal cholesterol loss underlies poor cognition in old rodents
(2014)Cognitive decline is one of the many characteristics of aging. Reduced long-term potentiation (LTP) and long-term depression (LTD) are thought to be responsible for this decline, although the precise mechanisms underlying ... -
Dissolution properties, solid-state transformation and polymorphic crystallization: progesterone case study
(2014)Progesterone is a natural steroid hormone and a poor soluble drug which presents two polymorphs (forms 1 and 2). Different methods to obtain form 2 were tested and a complete solid-state characterization of both polymorphs ... -
Dose point kernel calculation and modelling with nuclear medicine dosimetry purposes
(2014)Monoclonal labeled antibodies are commonly used for radioimmunotherapy purposes in nuclear medicine. The procedure is based on the deposition of specific radiactivity concentrations on tumoral regions with the aim of ... -
Dosimetry optimization system and integrated software (DOSIS) : a comparison against Fluka code results over a standard phantom
(2014)Actually, dual-imaging facilities allow obtainance of both mass and activity patient-specific distributions perfectly correlated, which are important to improve dose distributions estimations and radioimmunotherapy treatment ... -
Educación matemática de jóvenes y adultos : la complejidad de la enseñanza en una oferta semipresencial
(2014)Este artículo tiene como objetivo presentar hallazgos de una investigación referida a la enseñanza de saberes matemáticos en la modalidad de Educación Permanente de Jóvenes y Adultos. Este estudio tuvo como objeto analizar ... -
Effect of the microtubule-associated protein tau on dynamics of single-headed motor proteins KIF1A
(2014-02)Intracellular transport based on molecular motors and its regulation are crucial to the functioning of cells. Filamentary tracks of the cells are abundantly decorated with nonmotile microtubule-associated proteins, such ... -
Estudio del espectro fluorescente Ka 1,2 en Mn
(2014)Se presenta un estudio de alta resolución del espectro de emisión fluorescente Kα1,2deMn.El espectromedidopresenta asimetrías hacia el lado de bajas energías de los picosKα1y Kα2.Lainterpretación del ... -
Examples of pointed color Hopf algebras
(2014)We present examples of color Hopf algebras, i.e. Hopf algebras in color categories (braided tensor categories with braiding induced by a bicharacter on an abelian group), related with quantum doubles of pointed Hopf algebras. ... -
Existence of strictly positive solutions for sublinear elliptic problems in bounded domains
(2014)Let Ω be a smooth bounded domain in RN and let m be a possibly discontinuous and unbounded function that changes sign in Ω. Let f : [0,∞) → [0,∞) be a nondecreasing continuous function such that k1 ξp ≤ f (ξ) ≤ k2 ξp for ... -
Experimental determination of <10 10>/ Ψ tilt grain boundary energies in ice
(2014)Ice grain boundary energies γgb relative to the free surface energy γs were determined by studying the topographic details revealed by plastic replicas of the ice grain boundary groove-free surface with a Laser Confocal ... -
Experimental determination of L X-ray fluorescence cross sections for elements with 45 < Z < 50 at 10 keV
(2014)Synchrotron radiation at 10 keV was used to experimentally determine the Ll, La, LbI ,LbII , LgI and LgII fluorescence cross sections for elements with 45 < Z < 50, as part of an ongoing investigation at low energies. The ... -
Expression of VEGF-A, HIF-1 A, CD34 and Ki67 in clear cell renal cell carcinomas and their relationship with conventional prognostic markers
(2014)El carcinoma renal de células claras es la variante más frecuente de carcinoma renal. En los últimos años, la atención se ha enfocado en la expresión de factores angiogénicos por estos tumores, lo que justificaría en ... -
First all-sky search for continuous gravitational waves from unknown sources in binary systems
(2014)We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specially developed analysis program, the ... -
First-principles studies of lithium storage in reduced graphite oxide
(2014-09)The present work performs a first-principles study of the lithiation of graphite oxides with low oxygencontent, which resemble reduced graphite oxide materials. The chemical nature of the Li structure formedis analysed, ... -
Floquet chiral edge states in graphene
(2014)We report on the emergence of laser-induced chiral edge states in graphene ribbons. Insights on the nature of these Floquet states is provided by an analytical solution which is complemented with numerical simulations of ...
