Preperitoneal robotic prostate adenomectomy.

Objectives: To describe the surgical technique and evaluate the feasibility of robotic-assisted preperitoneal prostate adenomectomy for large benign adenomas in a pilot series.

Methods: A total of 13 consecutive patients with a median age 70 years and body mass index of 26 kg/m(2) in whom open adenomectomy was planned were included in this pilot study. The extraperitoneal robotic approach was standardized in all cases.

High-resolution terahertz spectroscopy of crystalline trialanine: extreme sensitivity to beta-sheet structure and cocrystallized water.

High-resolution terahertz absorption spectra (0.06-3 THz) have been obtained at 4.2 K for three crystalline forms of trialanine [H2+-(Ala)3-O-].