newscientist.com – The remains of birds from between AD 1100 and 1450 suggest that people once transported parrots and macaws to trade them at an oasis in Chile’s Atacama desert
Source: José M. Capriles, et al. Pre-Columbian transregional captive rearing of Amazonian parrots in the Atacama Desert. Proceedings of the National Academy of Sciences, 2021.
livescience.com – The authors argue that current evidence is not strong enough to determine if the virus originated from nature or from a lab leak.
Source: Jennifer Sills, et al. Investigate the origins of COVID-19. Science, 2021.
businessinsider.com – Researchers at the site of the catastrophic 1986 nuclear explosion in Ukraine have detected a spike of neutrons in an underground room at the power plant.
Source: Richard Stone. ‘It’s like the embers in a barbecue pit.’ Nuclear reactions are smoldering again at Chernobyl. Science, 2021.
nbcnews.com – The CDC said the decision to lift mask mandates was driven by scientific evidence that the vaccines play a major role in curbing infections and transmission.
Source: Laith J. Abu-Raddad, Hiam Chemaitelly, Adeel A. Butt. Effectiveness of the BNT162b2 Covid-19 Vaccine against the B.1.1.7 and B.1.351 Variants. New England Journal of Medicine, 2021.
the-scientist.com – Researchers show that both mice and pigs are capable of oxygenating their blood via the colon--a capacity that, if shared by humans, could be leveraged in the clinic to minimize the need for mechanical ventilation.
Source: Ryo Okabe, et al. Mammalian enteral ventilation ameliorates respiratory failure. Med, 2021.
newyorker.com – We are in a pandemic from which, as much as one might wish it, children have never been exempt.
Source: Justin Lessler, et al. Household COVID-19 risk and in-person schooling. Science, 2021.
livescience.com – The plutonium-244 hints at how heavy metals form in stars.
Source: A. Wallner, et al. 60 Fe and 244 Pu deposited on Earth constrain the r-process yields of recent nearby supernovae. Science, 2021.
nytimes.com – Health care systems are trying to answer the central question of how to care for patients when climate change threatens their ability to remain open.
Source: Christopher W. Tessum, et al. PM 2.5 polluters disproportionately and systemically affect people of color in the United States. Science Advances, 2021.
theguardian.com – The discovery of a child laid to rest in Africa 78,000 years ago indicates a value placed on life that we share
Source: María Martinón-Torres, et al. Earliest known human burial in Africa. Nature, 2021.
arstechnica.com – A paralyzed individual hit 90 characters per minute, 99% accuracy.
Source: Francis R. Willett, Donald T. Avansino, Leigh R. Hochberg, Jaimie M. Henderson, Krishna V. Shenoy. High-performance brain-to-text communication via handwriting. Nature, 2021.