The light is shining from the ground, minutes after sun has set. Fontainebleau sand glowing with a mysterious below. I prepare for camera to capture it. If it does, will disappearing in bright surface of sand.

rhroughout the United States and Canada an estimated 80 percent of all major elective civilian amputations result from ischemia. All but a relatively few involve the lower extremity. Significant improvements in below-knee prostheses and important advances in surgical and postsurgical management now allow amputation below the knee in a majority of patients. In a consecutive series of 96 unselect...

If the initial segment Σ of Ω is a set, then it has a least strict upper bound S(Σ) ∈ Ω. Thus, for numbers α = S(Σ) and β = S(Σ′), α < β iff α ∈ Σ′; α = β iff Σ = Σ′; S(∅) is the least number 0 (although Cantor himself took the least number to be 1); if Σ has a greatest element γ, then α is its successor γ + 1; and if Σ is non-null and has no greatest element, then α is the least upper bound of...