Obscured GOODS AGN and Their Host Galaxies at z < 1.25: The Slow Black Hole Growth Phase

Obscured High Mass X-Ray Binaries and Supergiant Fast X-ray Transients: Infrared Observations of INTEGRAL Sources

Obscured star formation at z = 0.84 with HiZELS: the relationship between star formation rate and H-alpha or ultra-violet dust extinction

Obscured star formation in intermediate-density environments: A Spitzer study of the Abell 901/902 supercluster

Obscured star formation in the central region of the dwarf galaxy NGC5253

Obscured star-formation and environment in the COSMOS field

Obscured Starburst Activity in High Redshift Clusters and Groups

Obscured type 1 Seyfert nuclei

Obscuring Active Galactic Nuclei with Nuclear Starburst Disks

Obscuring and feeding supermassive black holes with evolving nuclear star clusters

Obscuring clouds playing hide-and-seek in the Active Nucleus H0557-385

Obscuring Material around Seyfert Nuclei with Starbursts

Obscuring Supersoft X-ray Sources in Stellar Winds

Observability and diagnostics in the X-ray band of shock-cloud interactions in supernova remnants

Observability and Geometry in Three dimensional quantum gravity

Observability of Coronal Heating Processes

Observability of Early Evolutionary Phases of Galaxies at mm Wavelengths

Observability of extra-solar planetary disks in the mid-infrared with VLT/VISIR and NGST/MIRI

Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo

Observability of neutron events above the Greisen-Zatsepin-Kuzmin cut-off due to violation of Lorentz invariance