Why do pilots spool up jet engines before takeoff?

The answer lies in a fascinating dance of air, fire, and spinning blades.
Science Daily

Axial tilt

Axial tilt is an astronomical term regarding the inclination angle of a planet's rotational axis in relation to a perpendicular to its orbital plane. It is also called axial inclination or obliquity.
BMJ

ASAS consensus definition of early axial spondyloarthritis

Objectives To develop a consensual definition for the term ‘early axial spondyloarthritis—axSpA’—and ‘early peripheral spondyloarthritis—pSpA’. Methods The ASAS (Assessment of SpondyloArthritis ...
BMJ

MRI lesions of the spine in patients with axial spondyloarthritis: an update of lesion definitions and validation by the ASAS MRI working group

4 Department of Diagnostic Imaging, Sheba Medical Center, affiliated to the Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel Objectives Spinal MRI is used to visualise lesions ...