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Copyright of Revista Internacional de Educacion Musical is the property of Sage Publications Inc. 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 Opuntia Brava is the property of Universidad de Ciencias Pedagogicas de Las Tunas, Centro de Documentacion e Informacion Pedagogica 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 Ensayos. Historia y Teoría del Arte is the property of Instituto de Investigaciones Esteticas - Universidad Nacional de Colombia 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 have investigated the structural and electronic properties of the YGa3N4 in the NaCl phase, using the Theory Functional Density (DFT), the Full Potential Linearized Augmented Plane Waves Method (FP-LAPW) and the exchange and correlation effects were treated using the Generalized Gradient Approximation (GGA) with the Perdew -- Burke -- Ernzerhof approximation. Using the Murnaghan state equation, we have fit the energy data in function of volume to obtain the optimal lattice constant and the bulk modulus. With this lattice constant, we calculated the density of states and the structure of bands. It is observed that the material exhibits a metallic behavior because it doesn't present a gap energy. [ABSTRACT FROM AUTHOR]