Objective: To identify self-reported sport concussion symptom scales and to describe the psychometric properties of these identified scales. Design: Systematic review. Intervention: PubMed, Medline, ...

A digital weigh scale is one of the most precise analog instruments. Weigh scales, which use force sensors to measure the load offered by an object, are used in a multitude of applications ranging ...

University of Illinois Physics Professor Paul Kwiat and members of his research group have developed a new tool for precision measurement at the nanometer scale in scenarios where background noise and ...