Double bubbles pierce with less trouble

Two microscopic bubbles penetrate soft materials better than one, concludes a new study by engineers. Optical cavitation uses a laser to form bubbles in a liquid that expand rapidly then collapse. The new article shows two bubbles produce long, fine jets that penetrate far enough with only five pulses to make cavitation potentially suitable for transfection or needle-free injections.

New AI enables teachers to rapidly develop intelligent tutoring systems

Intelligent tutoring systems have been shown to be effective in helping to teach certain subjects, such as algebra or grammar, but creating these computerized systems is difficult and laborious. Now, researchers have shown they can rapidly build them by, in effect, teaching the computer to teach.

Clinicians warn of the dangers of equating COVID-19 with high altitude pulmonary edema

Early reports of COVID-19 symptoms and the compelling need to quickly identify treatment options and curb the growing number of critically ill patients have led to erroneous and potentially dangerous comparisons between COVID-19 and other respiratory diseases like high altitude pulmonary edema, or HAPE.

Vitamin K1 Treatment Duration in Patients with Brodifacoum Poisoning

To the Editor: Brodifacoum, a long-acting vitamin K epoxide cycle antagonist, is a rodenticide encountered in intentional ingestions and as a contaminant of some synthetic cannabinoid products. Serious brodifacoum poisoning is characterized by life-threatening hemorrhage. Brodifacoum poisoning is…