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Pathogenicity islands excision is a mechanism that occurs in several Enterobacteriaceae family members, including Salmonella enterica subspecie enterica serovars. ROD21 is an excisable pathogenicity island present in the chromosome of Salmonella enterica serovar Enteritidis and other serovars. It...


One of the main questions of Galactic astronomy is to understand the natural processes responsible for the formation and evolution of the Milky Way (MW). Most of the information needed to study the early stages of Galactic formation is contained in the halo and its substructures, because they are...

Una de las interrogantes más importantes en la astronomía Galáctica es entender los procesos responsables de la formación y evolución de la Vía Láctea. La mayor parte de la información para estudiar las etapas tempranas de formación Galáctica está contenida en el halo y sus subestructuras, domina...


This thesis is divided in two chapters, which are independent and can be read separately. In the rst chapter we provide a converse theorem for a certain class of non-holomorphic automorphic forms, called Jacobi{Maass forms. This new type of automorphic f


For the past two decades, the lattice Boltzmann method has proven to be an accurate and efficient alternative for solving the shallow water equations. This system of equations describes the evolution of the free-surface of a fluid and it is applicable in open ocean simulations, such as tsunamis. ...


In this thesis, a midlatitude climatology of cut-off lows was done and then used for studying the synoptic-scale patterns associated with extreme rainfall rate events due to the passage of cut-off lows in central Chile. The climatology was developed using the NCEP-NCAR reanalysis data from 1960 t...


El déficit energético actual y la contaminación a nivel mundial, han favorecido una nueva revolución, con miras a la generación de energía a partir de fuentes inagotables y limpias para el medio ambiente. Esto ha conllevado a desarrollar nuevas tecnologías que, entre otras, apuntan al uso de ener...

The current energy deficit and pollution worldwide have favoured a new revolution, with a view to the generation of energy from inexhaustible and clean sources for the environment. This has led to the development of new technologies that, among others, point to the use of solar energy, based on t...


La bacteria Pseudomonas veronii R4 aislada desde la rizósfera de vid, presenta alta actividad nematicida sobre Xiphinema index. Este nemátodo es el vector del virus de la hoja de abanico de la vid, el agente viral más importante que afecta este cultivo. P. veronii R4 está relacionado filogenética...

The bacterium Pseudomonas veronii R4 isolated from grapevine rhizosphere, possess high nematicide activity against Xiphinema index. This nematode is the vector of the grapevine fanleaf virus, the most significant viral agent that affects this crop. P. veronii R4 is phylogenetically related to P. ...


La estructuración de las poblaciones en el espacio-tiempo tiene vital importancia en procesos demográficos y evolutivos. Un patrón de baja estructura genética es comúnmente reportado en especies ampliamente distribuidas. Sin embargo, factores ecológicos locales o barreras geográficas podrían limi...


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