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Mostrando ítems 31-40 de 56
Artículo
Geometric Objects and Cohomology Operations
(Cornell University, 2012)
Cohomology operations (including the cohomology ring) of a geometric object are finer algebraic invariants than the homology of it. In the literature, there exist various algorithms for computing the homology groups of ...
Artículo
Measurement and resonance analysis of the 237Np neutron capture cross section
(American Physical Society, 2012)
The neutron capture cross section of 237Np was measured between 0.7 and 500 eV at the CERN n-TOF facility using the 4π BaF2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the ...
Artículo
Representation of Banach lattices as L1w spaces of a vector measure defined on a δ-ring
(The Belgian Mathematical Society, 2012)
In this paper we prove that every Banach lattice having the Fatou property and having its s-order continuous part as an order dense subset, can be represented as the space L1 w(n) of weakly integrable functions with ...
Artículo
A new species of Caprella (Crustacea: Amphipoda) from the Mediterranean Sea
(BMC, 2012)
A new caprellid amphipod, Caprella tavolarensis n. sp., is described based on specimens collected from a Posidonia oceanica seagrass meadow at the TavolaraPunta Coda Cavallo Marine Protected Area (Sardinia, Mediterranean ...
Artículo
Interplay between valence and core excitation mechanisms in the breakup of halo nuclei
(American Physical Review, 2012-12-05)
The phenomenon of core excitation in the breakup of a two-body halo nucleus is investigated. We show that this effect plays a significant role in the reaction dynamics and, furthermore, its interference with the valence ...
Ponencia
Contaminantes emergentes en las aguas del Parque de Doñana
(Universidad Internacional de Andalucía, 2012)
El Parque Nacional de Doñana, declarado Patrimonio de la Humanidad por la UNESCO en 1994, es la reserva biológica más importante de España, y la mayor área protegida. Es un ecosistema único en toda Europa, debido a su gran ...
Artículo
Core excitation effects in the breakup of the one-neutron halo nucleus 11Be on a proton target
(American Physical Society, 2012)
We investigate the phenomenon of core excitation in the inelastic and breakup of two-body halo nuclei, composed by a valence nucleon and a core. To evaluate the importance of this effect we propose a simple reaction model ...
Artículo
Motivic Poincaré series, toric singularities and logarithmic Jacobian ideals
(American Mathematical Society, 2012)
The geometric motivic Poincaré series of a variety, which was introduced by Denef and Loeser, takes into account the classes in the Grothendieck ring of the sequence of jets of arcs in the variety. Denef and Loeser proved ...
Artículo
PolaritySpam: Propagating Content-based Information Through a Web-Graph to Detect Web Spam
(ICIC International, 2012)
Spam web pages have become a problem for Information Retrieval systems due to the negative effects that this phenomenon can cause in their results. In this work we tackle the problem of detecting these pages with a ...
Ponencia
A Reference Architecture to Devise Web Information Extractors
(SpringerLink, 2012-06)
The Web is the largest repository of human-friendly information. Unfortunately, web information is embedded in formatting tags and is surrounded by irrelevant information. Researchers are working on information extractors ...