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  2. oxygen
Home»Posts tagged with»oxygen

An explanation for the lack of blood oxygenation detected in many COVID-19 patients

By Jose Lopez Barneo | University of Seville on Dec 30, 2020   Featured, Health, Science/Education  

An explanation for the lack of blood oxygenation detected in many COVID-19 patients

One of the physiopathological characteristics of COVID-19 that has most baffled the scientific and medical community is what is known as “silent hypoxemia” or “happy hypoxia”. Patients suffering this phenomenon, the causes of which are still unknown, have severe pneumonia with markedly decreased arterial blood oxygen levels (known as hypoxemia). However, they do not report […]

Warming Climate Unlikely to Cause Major Methane Release

By National Science Foundation on Mar 3, 2020   Featured, Science/Education, The Arctic and Alaska Science  

Warming Climate Unlikely to Cause Major Methane Release

  A long-feared scenario in which global warming causes Arctic permafrost to melt and release enough methane—a potent greenhouse gas–to accelerate warming and cause catastrophe probably won’t happen. That is the conclusion of a study appearing in the journal Science that began more than 20 years ago as a query posed by Jeff Severinghaus, a geoscientist at the Scripps Institution […]

Breath of Clams Leads to Big Picture

By Ned Rozell | Geophysical Institute on May 10, 2019   Featured, The Arctic and Alaska Science  

Breath of Clams Leads to Big Picture

  To learn more about one of the largest environmental changes of our lifetimes, Brittany Jones studies clam breath. Jones is a student earning her Ph.D. at the University of Alaska Fairbanks. She is an expert on creatures that live in the muck covering the underwater continental shelf off western Alaska. There, sea ice waxes […]

Biggest Extinction in Earth’s History Caused by Global Warming

By Hannah Hickey | University of Washington on Dec 10, 2018   Featured, Science/Education  

Biggest Extinction in Earth’s History Caused by Global Warming

  [dropcap]T[/dropcap]he largest extinction in Earth’s history marked the end of the Permian period, some 252 million years ago. Long before dinosaurs, our planet was populated with plants and animals that were mostly obliterated after a series of massive volcanic eruptions in Siberia. Fossils in ancient seafloor rocks display a thriving and diverse marine ecosystem, […]

ALMA and VLT Find Evidence for Stars Forming Just 250 Million Years After Big Bang

By ESO on May 16, 2018   Science/Education  

ALMA and VLT Find Evidence for Stars Forming Just 250 Million Years After Big Bang

Astronomers have used observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and ESO’s Very Large Telescope (VLT) to determine that star formation in the very distant galaxy MACS1149-JD1 started at an unexpectedly early stage, only 250 million years after the Big Bang. This discovery also represents the most distant oxygen ever detected in the Universe […]

Too Much Oxygen Increases Risk of Death in Acutely Ill Adult Patients

By Brighter World on Apr 30, 2018   Health  

Too Much Oxygen Increases Risk of Death in Acutely Ill Adult Patients

McMaster researchers have found there is such a thing as too much oxygen for acutely ill adults. Extensive data analyses in a study from the university show that supplemental oxygen, when given liberally to these patients, increases the risk of death without improving other health outcomes. The results were published in The Lancet. “Supplemental oxygen is administered to […]

Did Plants Cause one of Earth’s Great Extinctions?

By Ned Rozell | Geophysical Institute on Mar 5, 2018   Science/Education  

Did Plants Cause one of Earth’s Great Extinctions?

Several times in the distant past, our home planet has been cleansed of its residents, with the exception of a few plucky survivors. Perhaps the best known and most spectacular extinction was that of the dinosaurs, caused when a meteorite six miles in diameter crashed into Earth about 65 million years ago. There was another […]

Ultrathin Material for Splitting H2O Could Make Hydrogen Production Cheaper

By Deborah Smith |UNSW on Jun 6, 2017   Featured, Science/Education  

Ultrathin Material for Splitting H2O Could Make Hydrogen Production Cheaper

UNSW Sydney chemists have invented a new, cheap catalyst for splitting water with an electrical current to efficiently produce clean hydrogen fuel. The technology is based on the creation of ultrathin slices of porous metal-organic complex materials coated onto a foam electrode, which the researchers have unexpectedly shown is highly conductive of electricity and active […]

Low-Oxygen ‘Dead Zones’ in North Pacific Linked to Past Ocean Warming

By Cheryl Dybas | NSF, Mark Floyd | OSU on Nov 20, 2015   Featured, Science/Education  

Low-Oxygen ‘Dead Zones’ in North Pacific Linked to Past Ocean Warming

A new study has found a link between abrupt ocean warming at the end of the last ice age and the sudden onset of low-oxygen, or hypoxic, conditions that led to vast marine dead zones. Results of the research, which was funded by the National Science Foundation (NSF), are published today in the journalNature. “This […]

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