Abstract: Peripheral artery disease is a common circulatory disorder caused by the narrowing of arteries, which restricts blood flow to the extremities. Diagnosing this disease requires accurate and ...

PHOENIX —Thousands of newly spotted galaxies are dressed for a Victorian ball: in hoop skirts. The cache of “polar structure galaxies” — with large starry or dusty structures oriented perpendicular to ...

This first newsletter of the new year looks at some of the big questions we hope will be answered in the next 12 months, across film, TV, music and games Don’t get The Guide delivered to your inbox?