Mechanical test and friction-mapping on recycled polypropylene beads using atomic force microscopy.

Mechanical tests at sub-micron scales using force microscopy are often used for the characterization of materials. Here we report the mechanical, tribologic, and morphological characterization of recycled polypropylene beads using force spectroscopy and lateral-force microscopy. The compression-elastic moduli calculated using the Hertzian model for polypropylene beads was between 0.

Demographic and clinical characteristics of patients with transverse myelitis and traumatic spinal cord injury: A comparative retrospective study.

Objectives: To identify the demographic and clinical characteristics of patients with transverse myelitis (TM) and to compare functional status between those patients and a matched group with traumatic spinal cord injury (T-SCI).

Study Design: Retrospective study.

Setting: A tertiary rehabilitation hospital.