Method of drilling a well, including one method comprising determining a first value indicative of a relative position of a geological bed boundary with respect to a drilling assembly, determining a second value indicative of an optical property of a formation fluid proximate the drilling assembly, and controlling a well trajectory based on the first and second value. The device comprises a closed conduit with an inlet end and an outlet end through which the material is transported. Attribute information is maintained and metered on the home agent in a data table. The system combines layer-wise tumor irradiation from many directions with controlled energy proton irradiation to deliver peak proton beam energy within a selected tumor volume or irradiated slice. The addition of the vanity mirror brow between the foundation and the cover gives the perception that at least a portion of the vanity mirror assembly is attractively recessed into the foundation. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of cardiovascular and cerebrovascular disorders andor disorders of the urogenital system, in particular for the treatment of erectile dysfunction.