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.
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Smoking during pregnancy results in an increased risk of asthma even in adulthood
A recently completed study indicates that smoking by pregnant mothers caused roughly an 1.5-fold asthma risk in their offspring at the ages between 31 and 46.
Reduced obesity for weighted-vest wearers
Scientists have found a new method of reducing human body weight and fat mass using weighted vests. The new study indicates that there is something comparable to built-in bathroom scales that contributes to keeping our body weight and, by the same token, fat mass constant.
A new way to accurately estimate COVID-19 death toll
A new mathematical model has been created to estimate the death toll linked to the COVID-19 pandemic in the United States and could be used around the world.
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.
Ingestion of Caustic Substances
Caustic substances injure tissue by means of a chemical reaction on direct physical contact. Often thought of as acids or bases, caustics broadly include desiccants, vesicants, and protoplasmic poisons. The term “corrosive” is often used interchangeably with “caustic,” but corrosion implies a…
HLH Associated with Disseminated Tuberculosis
Figure 1.
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…
As Several States Loosen Rules, California Closes Some Beaches
New Jersey is now reporting more daily deaths than any other state. The federal government will increase inspections of nursing homes after a series of outbreaks.