Una aproximación al estudio de las motivaciones culturales de la práctica musical

Este trabajo pretende ser una aproximación al estudio de las motivaciones dentro del marco de las nuevas tendencias del campo de la etnomusicología en cuanto al reconocimiento de la importancia de abordar la experiencia individual en el "hacer musical". El ejercicio se realiza desde la fenomenología de Schutz, como marco interpretativo de la dimensión subjetiva de las prácticas musicales indígenas

On the filtering effect of iterative regularization algorithms for linear least-squares problems

Many real-world applications are addressed through a linear least-squares problem formulation, whose solution is calculated by means of an iterative approach. A huge amount of studies has been carried out in the optimization field to provide the fastest methods for the reconstruction of the solution, involving choices of adaptive parameters and scaling matrices. However, in presence of an ill-conditioned model and real data, the need of a regularized solution instead of the least-squares one changed the point of view in favour of iterative algorithms able to combine a fast execution with a stable behaviour with respect to the restoration error. In this paper we want to analyze some classical and recent gradient approaches for the linear least-squares problem by looking at their way of filtering the singular values, showing in particular the effects of scaling matrices and non-negative constraints in recovering the correct filters of the solution

Metodi di Newton proiettato nella ricostruzione di immagini - Rapporto tecnico

In questo lavoro si analizza il metodo di Newton proiettato proposto da Bertsekas per problemi di ottimizzazione con vincoli di positività e lo si applica al problema della ricostruzione di immagini. Poiché tale problema è malposto, sono applicati i metodi di regolarizzazione di Tikhonov e della variazione totale. Sono considerate immagini astronomiche perturbate con due diverse PSF e con rumore bianco di Poisson

Del lleure i la postmodernitat

El lleure, fenomen de l’esfera cultural, és un reflex de les característiques de les societats. A hores d’ara, una nova època encu­nyada com a postmodernitat, ens mostra un seguit de canvis de diferent ordre, social, econòmic i polític, i un nou esquema de valors culturals. L’objectiu d’aquest article és reflexionar sobre les principals senyes d’identitat d’aquesta societat postmoderna i la seva incidència sobre el significat i les manifestacions del lleure

Nuevos campos de desarrrollo profesional para el licenciado en comunicación

Con el incremento de la matrícula en comunicación en los últimos veinte años se han venido reduciendo las oportunidades de empleo que tradicionalmente han ocupado la labor profesional de los egresados de estas carreras. Sin embargo, el nuevo contexto internacional de la globalización y su impacto en lo social, económico y político, así como en la vida cotidiana de las personas, empiezan a demandar del profesional de la comunicación nuevas y dinámicas competencias para enfrentar escenarios laborales antes no explorados en México.Con el incremento de la matrícula en comunicación en los últimos veinte años se han venido reduciendo las oportunidades de empleo que tradicionalmente han ocupado la labor profesional de los egresados de estas carreras. Sin embargo, el nuevo contexto internacional de la globalización y su impacto en lo social, económico y político, así como en la vida cotidiana de las personas, empiezan a demandar del profesional de la comunicación nuevas y dinámicas competencias para enfrentar escenarios laborales antes no explorados en México

A special family of stacked central configurations: Lagrange plus Euler in one

This is a post-peer-review, pre-copyedit version of an article published in Journal of dynamics and differential equations. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10884-018-9647-1We show the existence of a family of stacked central configurations in the planar five-body problem with a special property. Three bodies m1, m2 and m3, ordered from left to right, are collinear and form an Euler central configuration, and the other two bodies m4 and m5, together with m2 are at the vertices of an equilateral triangle and form a Lagrange central configuration.Peer ReviewedPostprint (author's final draft

The diversity of contemporary Christianity in Southeast Asia

This article is concerned with the diverse forms of Christianity as the religion spreads around Southeast Asia. Although growth and expansion characterize much of Christianity\u27s fortunes, no unifying trend is readily discernible. Four trends are identified in this article: popular religion, megachurches, the global church, and the struggling church. The article draws from different cases around the region to illustrate the importance of these developments. It in this manner that the article complicates the narrative that Christianity is moving to the Global South. The narrative often presents Christianity as a religion at war with itself insofar as geographic tensions are concerned. In contrast to its counterpart in the West, Christianity in the region is depicted as strict, fundamentalist, and often Charismatic in orientation. To view Christianity in Southeast Asia as a homogenous entity disregards issues at stake for its many denominations. Some of these concerns include different political regimes and uneven levels of economic development. This paper was delivered as an opening lecture at the workshop on Christian art in Southeast Asia, organized by SEAMEO SPAFA in the Philippines in March 2016