Drexel University

Export Control Classification Number

A key in determining whether an export license is needed from the Department of Commerce is finding out if the item you intend to export has a specific Export Control Classification Number (ECCN).
Scientific American

This Number System Beats Binary, But Most Computers Can’t Use It

The Babylonians used separate combinations of two symbols to represent every single number from 1 to 59. That sounds pretty confusing, doesn’t it? Our decimal system seems simple by comparison, with ...
BMJ

A new classification system for shoulder instability

Correspondence to Dr John E Kuhn, Chief of Shoulder Surgery, Vanderbilt University Medical Center, Vanderbilt Sports Medicine, 3200 MCE South Tower, 1215 21st Avenue South, Nashville, TN 37232, USA; j ...
BMJ

London International Consensus and Delphi study on hamstring injuries part 1: classification

Muscle injury classification systems for hamstring injuries have evolved to use anatomy and imaging information to aid management and prognosis. However, classification systems lack reliability and ...