Articles, congressos, llibres: Recent submissions
Now showing items 1701-1720 of 1908
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Research into the information referents of deaf signers
(2012)La sociedad de la información está ampliando los referentes informativos de las personas sordas signantes (usuarias de una lengua de signos). Con el objetivo de explorar las vías más utilizadas para ... -
Estado de cambios en el patrimonio neto en el PGC. Una aplicación práctica
(2008)Las cuentas anuales que deberan presentar las empresas a partir del 1 de enero de 2008, atendiendo al Nuevo Plan General de Contabilidad, estan integradas por cinco documentos: el Balance de Situacion, ... -
La puesta en práctica de la interseccionalidad política: el caso de las políticas LGTB en Cataluña
(2013)En el marco de la discusión académica está emergiendo con fuerza la necesidad de abordar la interacción entre distintas desigualdades en el diseño e implementación de políticas públicas, siendo el ... -
The role of Cysteine 6.47 in class A GPCRs
(2013)Abstract Background: The CWxP motif of transmembrane helix 6 (x: any residue) is highly conserved in class A GPCRs. Within this motif, W6.48 is a big star in the theory of the global “toggle switch” ... -
2-Dimensional invariant tori for the spatial isosceles 3-body problem
(2000)We consider the circular Sitnikov problem as a special case of the restricted spatial isosceles 3-body problem. In appropriate coordinates we show the existence of 2-dimensional invariant tori that are ... -
Symmetric periodic orbits near a heteroclinic loop formed by two singular points and their invariant manifolds of dimension 1 and 2
(2006)In this paper we consider vector fields in R3 that are invariant under a suitable symmetry and that posses a “generalized heteroclinic loop” L formed by two singular points (e+ and e −) and their ... -
Symmetric periodic orbits near a heteroclinic loop in R3 formed by two singular points, a semistable periodic orbit and their invariant manifolds
(2009)In this paper we consider C1 vector fields X in R3 having a “generalized heteroclinic loop” L which is topologically homeomorphic to the union of a 2–dimensional sphere S2 and a diameter connecting ... -
Equilibrium points and central configurations for the Lennard-Jones 2-and 3-body problems
(2004)Abstract. In this paper we study the relative equilibria and their stability for a system of three point particles moving under the action of a Lennard{Jones potential. A central con guration is a ... -
Photometric study of the binary system NN Del
(2003)We present the results of the differential V light curve analysis of NN Del. We show that NN Del is an EA eclipsing binary system with a period of 99.27 days and a highly eccentric orbit. Photometric ... -
Symmetric periodic orbits near heteroclinic loops at infinity for a class of polynomial vector fields
(2006)For polynomial vector fields in R3, in general, it is very difficult to detect the existence of an open set of periodic orbits in their phase portraits. Here, we characterize a class of polynomial vector ... -
Generation of symmetric periodic orbits by a heteroclinic loop formed by two singular points and their invariant manifolds of dimension 1 and 2 in R3
(2007)In this paper we will find a continuous of periodic orbits passing near infinity for a class of polynomial vector fields in R3. We consider polynomial vector fields that are invariant under a symmetry ... -
Central configurations of three nested regular polyhedra for the spatial 3n–body problem
(2009)Three regular polyhedra are called nested if they have the same number of vertices n, the same center and the positions of the vertices of the inner polyhedron ri, the ones of the medium polyhedron ... -
Central configurations of nested regular polyhedra for the spatial 2n–body problem
(2008)We consider 2n masses located at the vertices of two nested regular polyhedra with the same number of vertices. Assuming that the masses in each polyhedron are equal, we prove that for each ratio of ... -
Central configurations of nested rotated regular tetrahedra
(2009)In this paper we prove that there are only two different classes of central configura- tions with convenient masses located at the vertices of two nested regular tetrahedra: either when one of the ... -
Challenging equality policies: The emerging LGBT perspective
(2013)The state members of the European Union have witnessed the emergence of equality policies which target discrimination on the grounds of sexual orientation and gender identity. These are usually based ... -
Food Indicators and Their Relationship with 10 to 12 Year-olds' Subjective Well-Being
(2012)This study aimed to test subjective indicators designed to analyze the role food plays in children’s lives, explore children’s personal well-being, and evaluate the relationship between these two ... -
On the existence of bi-pyramidal central configurations of the n + 2-body problem with an n-gon base
(2013)Abstract. In this paper we prove the existence of central con gurations of the n + 2{body problem where n equal masses are located at the vertices of a regular n{gon and the remaining 2 masses, which ...