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In a recent study, scholars did a prospective review of charts of nearly 300 adult patients hospitalized for COVID-19 at Michigan Medicine during the pandemic's first wave between March and April 2020. They analyzed discharge locations, therapy needs at the time of release and if they needed durable medical equipment or other services..

The investigators found that 45 percent of patients hospitalized for COVID-19 experienced significant functional decline after being discharged.
An analysis of ancient fish bones from 30 archaeological sites in Israel and Sinai which date from the Late Bronze Age (1550-1130 BC) until the end of the Byzantine period (640 AD) finds that Judeans commonly ate non-kosher - lacking scales or fins - fish.

This finding sheds new light on the origin of Old Testament dietary laws that are still observed by many Jews today - and how well people adhered. Some things become part of culture because they are common. If people in Tennessee banned eating sharks it wouldn't be a huge loss. The ban on finless and scaleless fish deviated from longstanding Judean dietary habits, the authors note.
The Mars Curiosity rover has been on the job since the summer of 2012, exploring Gale Crater on the red planet. It's slow going, it has driven only 25 kilometers to date.  

But it can be fun to watch, like its ascent of Mount Mercou, a broad outcrop of rocks on the northern flank of Mount Sharp near the center of the crater, on April 18th 2021.

Mt. Sharp is over 2 miles high and Curiosity is the size of a small car. In the picture, it is above a 20-foot-high cliff where it examined the exposed rocks.

Credit: NASA/JPL/University of Arizona

An analysis of noble gases dissolved in groundwater finds that the low-to-mid latitude land surfaces at low elevation cooled on average by 11 degrees Fahrenheit during the Last Glacial Maximum - the ice age.

Prior to modern times, ice ages were about 90,000 of every 100,000 years. Since it has been 12,000 years since the last one, prior to concern about global warming there was concern about global cooling happening again.

Yet 11 degrees is less than some notable marine and low-elevation terrestrial studies that have relied on various proxies to reconstruct past temperatures. 
Researchers working with a paralyzed participant who has sensors implanted in his brain have deciphered the brain activity associated with trying to write letters by hand.

They used an algorithm to identify letters as he attempted to write them. Then, the system displayed the text on a screen - in real time. 

Brain-computer interfaces convert thought into action. By attempting handwriting, the study participant typed 90 characters per minute - more than double the previous record for typing with such a "brain-computer interface."

Preclinical findings suggest that targeting the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH) can restore ferroptosis-driven cell death, pointing to new therapeutic strategies that may be used to induce ferroptosis and inhibit tumor growth.

Ferroptosis is a form of controlled cell death triggered by the toxic accumulation of lipid peroxides in the cell. Because lipid peroxides are generated through normal metabolic activities, cells also have mechanisms in place to defend against ferroptosis. Glutathione peroxidase 4 (GPX4) is one of the key defense mechanisms identified to date.