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Copyright of International Journal of Medicine & Science of Physical Activity & Sport / Revista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte is the property of Revista Internacional de Medicina y Ciencias de la Actividad Fisica y del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos de Psicología del Deporte is the property of Cuadernos de Psicologia del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

We study here the generalized Weimar-Woods contractions of the superalgebra osp(1|32) ⊕ osp(1|32)in order to obtain a suitable algebra that could describe the gauge group of D = 11supergravity. The contracted superalgebras are assumed to be given in terms of fermionic extensions of the M-theory superalgebra. We show that the only superalgebra of this type obtained by contraction is the only one for which the three-form of D = 11supergravity cannot be trivialized. Therefore, D = 11supergravity cannot be connected in this way with a contraction of osp(1|32) ⊕ osp(1|32). [ABSTRACT FROM AUTHOR]

We show that the first-order D=4, N=1 pure supergravity lagrangian four-form can be obtained geometrically as a quadratic expression in the curvatures of the Maxwell superalgebra. This is achieved by noticing that the relative coefficient between the two terms of the lagrangian that makes the action locally supersymmetric also determines trivial field equations for the gauge fields associated with the extra generators of the Maxwell superalgebra. Along the way, a convenient geometric procedure to check the local supersymmetry of a class of lagrangians is developed. [ABSTRACT FROM AUTHOR]

This paper presents an algorithm based on neural networks and fuzzy theory (S-dFasArt) to classify spontaneous mental activities from electroencephalogram (EEG) signals, in order to operate a noninvasive brain-computer interface. The focus is placed on the three-class problem, left-hand movement imagination, right movement imagination and word generation. The algorithm allows a supervised classification of temporal patterns improving the classification rates of the BCI Competition III (Data Set V: multiclass problem, continuous EEG). Using the precomputed data supplied for the competition and following the rules established there, a new method based on S-dFasArt, along with rule prune and voting strategy is proposed. The results have been compared with other published methods improving their success rates. [ABSTRACT FROM AUTHOR]

The supergroup UOSp(1,2) is used to construct geometrically a twice graded supersymmetric supersigma model. In an appropriate contraction limit, the model reduces to the conventional supersymmetric sigma model. [ABSTRACT FROM AUTHOR]

The geometrical structure of the Hopf term and its relation to the spin of a skyrmion is studied. An ansatz describing the most general one-skyrmion field configuration in three dimensions is introduced and various properties of the physical Hopf term for it are exhibited. The extension to seven dimensions is also made. Some comments are also made about the quantization of the coefficient of the Hopf term in the action. [ABSTRACT FROM AUTHOR]

A case of bisalbuminaemia has been found in Luarca, Asturias. At least two relatives also bear the trait. The variant albumin Luarca (Al Lu, gene notation ), the first to be found on the mainland of Spain, is described in terms of its electrophoretic mobilities and dye-binding properties. It is heat-stable but sensitive to storage, freezing, and thawing and it is the first albumin to show this property. [ABSTRACT FROM PUBLISHER]

Two types of higher order Lie ℓ-ple systems are introduced in this paper. They are defined by brackets with ℓ > 3 arguments satisfying certain conditions, and generalize the well-known Lie triple systems. One of the generalizations uses a construction that allows us to associate a (2n - 3)-Leibniz algebra L with a metric n-Leibniz algebra L by using a 2(n - 1)-linear Kasymov trace form for L. Some specific types of k-Leibniz algebras, relevant in the construction, are introduced as well. Both higher order Lie ℓ-ple generalizations reduce to the standard Lie triple systems for ℓ = 3. [ABSTRACT FROM AUTHOR]