El presente trabajo aborda el estudio de los espacios culturales en la
televisión, siendo ésta el medio de comunicación de masas con mayor incidencia
social y uno de los pilares básicos de la comunicación. Por tanto aspira a ofrecer
una…

Un anciano Zubiri concluye su búsqueda en la definición de la filosofía como: �La filosofía no es fenomenología ni ontología sino que es filosofía de lo real en cuanto real, es metafísica�. Mi investigación ha pretendido reconstruir el proceso de…

En aquesta Tesi Doctoral es pretén seguir aprofundint en l�estudi de l�activitat biològica del fitat, molècula que està demostrant unes inusitades, i fins fa poc desconegudes, propietats com inhibidor del desenvolupament de calcificaciones patològiques. En primer lloc, es presenten tres…

Some applications such as radio astronomy and deep space communications require very sensitive receivers. This dissertation deals with the cryogenic technology applied to the microwave engineering and focuses on the design of very low noise amplifiers both in hybrid (MIC)…

Eighty years after the discovery of penicillin, the interest of this ß-lactam antibiotic at industrial level is still remarkable. Despite the good background knowledge, little is known on how Penicillin chrysogenum became a good penicillin overproducer, and much of the…

Resource management and performance models constitute important aspects for parallel applications' performance analysis and tuning. Defining performance models associated with the application structure has been proven useful for implementing dynamic tuning tools. However, for extending this strategy to complex pplications…

Understanding how materials deform and break is a subject of critical importance in industry. At the same time, it requires from the knowledge of the basic processes governing the phenomenon and hence, fundamental physics research is a must. The presence…

El objetivo de esta tesis es determinar los patrones de variabilidad espacio-temporal que siguen las comunidades de macroinvertebrados en los ríos de Cantabria, aplicando este conocimiento a los procedimientos de evaluación del estado ecológico de los ecosistemas fluviales Cantábricos. La…

From the earliest hardware and software days to the internet era, complexity of computer systems has been something computer scientists, engineers, and programmers have had to deal with. Important fields of research and technology have originated, developed, or matured as…

Since Marconi succeeded in carrying out the first wireless transmission in 1894, experimental research has been always linked with wireless communications. Today, most wireless communications research relies only on computer simulations. Although computer simulations are necessary and recommendable for wireless…