Absence of consistent data on the outcome of gastric emptying after fundoplication raises concerns about preoperative workup and surgical management. This study assessed how gastric emptying evolves… (More)

The solid angle subtended by a right circular cylinder at a point source located at an arbitrary position generally consists of a sum of two terms: that defined by the cylindrical surface (Ωcyl) and… (More)

We derive analytical expressions for the solid angle subtended by a right circular cylinder at a point source with cosine angular distribution in the case where the source and the cylinder axes are… (More)

We derive analytical expressions for the solid angle subtended by a right finite circular cylinder at a point source with cosine angular distribution in the case where the source direction is… (More)

We derive analytical expressions for the solid angle subtended by a circular disc at a point source with cosine angular distribution (f(μ) = μ/π) under the sole condition that the disc lies in the… (More)