Problemas de resistencia en Streptococcus pyogenes

Una aplicación de las funciones débilmente contractivas a problemas de valor en la frontera de funciones con valores en intervalos

We study the existence and uniqueness of solutions for boundary value problems associated to differential equations of interval-valued functions, by using the derivative of Hukuhara and some fixed point theorems for weakly contractive mappings defined on partially ordered sets.

Comparativo empírico de medidas de diversidad en problemas de optimización evolutiva con restricciones

Premature convergence is one of the central problems in evolutionary algorithms, and its main reason consists in the lack of diversity. In order to monitor diversity, special measures must be employed, which describe the population’s spread over the search space or according to the fitness values. Some diversity measures have been proposed for unconstrained optimization and their capability to ...

UNC-Method: un método de desarrollo de software basado en problemas

Software engineers use development methods to guarantee on-time delivery, keeping to budget and quality in their software applications. There are two kinds of development methods: plan-driven and agile methods. Both of them still have problems; these refer to resolving problems instead of thinking about them, they use informal or semi-formal artefacts and they leave consistency management to th...

Streptococcus pyogenes ( Group A Streptococcus )

Group A streptococcus (GAS) is synonymous with Streptococcus pyogenes, the only species within this group of β-hemolytic streptococci. GAS is one of the leading pathogenic bacteria that infects children and adolescents, and is associated with a wide spectrum of infections and disease states. Worldwide, there are estimated to be >600 million cases of GAS pharyngitis (“strep throat”) and >100 mil...

El Proceso de Modelado de la Ingeniería del Conocimiento como Método de Optimización en la Resolución de Problemas