Algunos no merecemos estar aquí.

Algunos problemas de análisis sobre cúspides exteriores

In this thesis we study several problems of analysis on domains with external cusps. Mainly: the density of smooth functions on Sobolev spaces, the extension problem and Korn’s inequality. It is known that many classical analysis results on standard Sobolev spaces, which are necessary for the study of partial differential equations and for approximating their solutions using numerical methods, ...

El Suicidio Y Algunos De Sus Correlatos Neurobiológicos. Primera Parte

SUMMARY Suicidal behavior is a complex and multifactorial phenomenon. At present, growing evidence shows the participation of biological traits in suicidality. Some findings suggest the dysfunction of the serotonin system, since serotonin and some of its receptor subtypes are involved in the modulation of such as affective behavior and cognition, among other behavioral processes. The content of...

Categorización automática de documentos en español: algunos resultados experimentales

Resumen. La categorización automática puede contemplarse como un proceso de aprendizaje, durante el cual un programa capta las características que distinguen cada categoría o clase de las demás, es decir, aquéllas que deben poseer los documentos para pertenecer a esa categoría. De otro lado, pocos experimentos se han efectuado todavía con documentos en español. Se muestran las posibilidades de ...

Processing Spanish ser and estar: Discourse and Gender-Based Differences

Background: Spanish copulas ser and estar (translated as English “be”) have distinct distributional patterns [1,2,3,4,5]. Locative predicates typically appear with estar, while nominal predicates typically appear with ser. Adjectival predicates sometimes, but not always, may combine with either copula, and this gives rise to differing interpretations. Crucially for our purposes, individuallevel...

Porque a sociedade deverá estar atenta à invenção?