Study objective: The three-dimensional shape of the ultrasound beam produces a thicker scan plane than most users assume. Viewed longitudinally, a needle placed lateral to a vessel just outside the central scanning plane can be displayed incorrectly in the ultrasound image as if placed intravascularly. …

MoneyLab is a network of artists, activists, and geeks experimenting with forms of financial democratization. Entering the 10th year of the global financial crisis, it still remains a difficult yet crucial task to distinguish old wine from its fancy new bottles. The MoneyLab network questions persistent …

Endothelial cells were isolated from arteries and veins obtained from elderly people at autopsy and propagated for 37 to 69 population doublings. The cells secreted tissue-type plasminogen activator (t-PA) and PA inhibitor-1, and, after subculturing, urokinase-type PA (u-PA) antigen. The following differences …