Objective To test the hypothesis that in recipients of primary prophylactic implantable cardioverter-defibrillators (ICDs), the non-planarity of ECG vector loops predicts (a) deaths despite ICD ...

Researchers have found a way to make ordinary aluminum tubes float indefinitely, even when submerged for long periods or punched full of holes. By engineering the metal’s surface to repel water, the ...

Functions and modules that provide shortcuts for translation, rotation and mirror operations. Also provided are skew and frame_map, which remaps the coordinate axes. The shortcuts can act on geometry, ...

Functions and modules for creating hinges and snap-locking hinged parts. Construct standard knuckle hinge in two parts using a hinge pin that must be separately supplied, or a print-in-place knuckle ...