Auge y caída del principio de justicia universal en el ordenamiento español

El presente trabajo se propone analizar desde una perspectiva internacionalista el recorrido del principio de justicia universal en nuestro ordenamiento: inicialmente configurado como un principio de carácter absoluto y cuyo alcance se ha visto drásticamente reducido tras las reformas llevadas a cabo por el legistlador en la última década, especialmente la última de ellas realizada en 2014, hasta el punto de acabar con la misma esencia de esta figura. Expuesto lo anterior, se abordan también las consecuencias que ha traído esta última modificación y las reacciones que la misma ha provocado. Para terminar, trataremos de esclarecer cuáles son las posibles vías de actuación dado el escenario actual.

Curved crystal surfaces: fabrication, characterization and growth of cobalt nanostructures

117 p.

Dendrorremediación: El uso de Betula alba para monitorizar y reducir el contenido de metales en suelos mineros.

[EN] The intense industrial activity that took place over the past century resulted in large contaminated áreas. This is an important risk to human health and environmental safety. Recent biotechnological techniques for bioremediation include phytoremediation, which uses plants to remove or stabilize contaminants in soils. In our study we choose birch (Betula alba) as the preferred species to remedy mining soils, due to it produces a large biomass and can accumulate high levels of toxic elements in its tissues. The aim of this study was (i) to determine the possibility of using this species in reforestation and/or remediation of mining soils (ii) to elucidate the potential of tocopherol levels as indicators of heavy metal pollution. Trees growing in mining soils with high concentrations of Zn, Cd and Pb were sampled and the metal content in various organs and in tree rings was analyzed. α-tocoferol levels were also analyzed as an indicator of stress. The results showed a different distribution of metals in plant tissues. Zn and Cd had a higher accumulation in leaves, whereas Pb was stored in the timber. In addition, the metal content in tree rings was higher in older rings, leading to a conclusion that older tissues present a detoxification strategy. Furthermore, we saw how the presence of α- tocoferol on branches can be an indicator of metal stress in plants and it can be also used as a monitoring factor.