The present work analyses the airborne pollen dynamic of the atmosphere of Toledo (central Spain), a World Heritage Site and an important tourist city receiving over 2 millions of visitors every year. The airborne pollen spectrum, the annual dynamics of the most important taxa, the influence of meteorological variables and the risk of suffering pollen allergy are analysed. Results of the presen...

The Europa Clipper is a NASA mission concept to study Europa, the ice-covered moon of Jupiter, though a series of fly-by observations of the Europan surface and subsurface from a spacecraft in Jovian orbit. One of the primary instruments in the strawman scientific payload is a multifrequency, multi-channel ice penetrating radar (IPR) system. The IPR will play a critical role in achieving the mi...

Understanding the origin of the orbital resonances of the Galilean satellites of Jupiter will constrain the longevity of the extensive volcanism on Io, may explain a liquid ocean on Europa, and may guide studies of the dissipative properties of stars and Jupiter-like planets. The differential migration of the newly formed Galilean satellites due to interactions with a circumjovian disk can lead...

Estimations based upon geostatistics and mapping have enabled the construction of a spatial model to predict the presence of biological particles in a particular region. This methodological proposal has been tested in a case study, at a regional scale, of airborne Olea pollen, using the data acquired from various sampling stations that are designed for the aerobiological monitoring of pollen le...

This article provides an overview of the issues and proposals surrounding wh-insitu since the 1980s. In particular, it discusses the question of whether or not in-situ wh-phrases undergo covert wh-movement. Aside from reviewing the basic arguments for and against covert wh-movement, it considers alternative proposals put forth, ranging from movement of elements other than wh-phrases themselves,...