News tagged with oxygen levels
Ancient oceans offer new insight into the origins of animal life
Space & Earth / Earth Sciences
Sep 09, 2009 |
4.4 / 5 (10) |
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(PhysOrg.com) -- Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on the Earth.
Explosive growth of life on Earth fueled by early greening of planet
Space & Earth / Earth Sciences
Jul 08, 2009 |
4.7 / 5 (10) |
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Earth's 4.5-billion-year history is filled with several turning points when temperatures changed dramatically, asteroids bombarded the planet and life forms came and disappeared. But one of the biggest moments ...
Scientists: Global warming has already changed oceans
Space & Earth / Earth Sciences
Jun 10, 2009 |
4.2 / 5 (63) |
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In Washington state, oysters in some areas haven't reproduced for four years, and preliminary evidence suggests that the increasing acidity of the ocean could be the cause. In the Gulf of Mexico, falling oxygen levels in ...
Lower levels of key protein influence tumor growth in mice, study shows
Jun 01, 2009 |
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Tumors need a healthy supply of blood to grow and spread. Researchers at the Stanford University School of Medicine have identified a molecule that regulates blood vessel growth that is often found at less-than-normal levels ...
Why some prostate cancer returns
May 27, 2009 |
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The majority of men who receive one of the standard treatments for localized prostate cancer - surgery or radiation therapy - have an excellent outcome.
Long-term study shows low oxygen levels in prostate tumors can predict recurrence
May 15, 2009 |
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Fox Chase Cancer Center researchers have discovered that low-oxygen regions in prostate tumors can be used to predict a rise in prostate-specific antigen (PSA) levels, a marker of tumor recurrence in prostate cancer. The ...
Harmful 'red tide' hits Dubai beaches
Apr 07, 2009 |
3.3 / 5 (3) |
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Beaches in the Gulf tourism hub of Dubai have been plagued by a bloom of algae known as the "red tide" that has killed fish and is potentially harmful to humans, a municipality official said on Tuesday.
A new soldier in the war on cancer: The blind mole rat
Mar 04, 2009 |
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If someone ever calls you a "dirty rat," consider it a compliment. A new discovery published online in the FASEB Journal shows that cellular mechanisms used by the blind mole rat to survive the very low oxygen environment of its ...
Nutrient Pollution Chokes Marine and Freshwater Ecosystems
Biology /
Feb 19, 2009 |
5 / 5 (2) |
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Protecting drinking water and preventing harmful coastal "dead zones", as well as eutrophication in many lakes, will require reducing both nitrogen and phosphorus pollution. Because streams and rivers are ...
Wireless drug control
Biology /
Feb 06, 2009 |
5 / 5 (1) |
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Electronic implants that dispense medicines automatically or via a wireless medical network are on the horizon. Australian and US researchers warn of the security risks in a forthcoming issue of the International Journal of ...
Researchers identify novel regulatory mechanism in inflammatory signaling of immune cells
Jan 08, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Using cancer cells that were originally isolated from an anaplastic large cell lymphoma patient, two researchers, including a faculty member of The University of Texas at Austin's College of Pharmacy, have ...
Mountaineers measure lowest human blood oxygen levels on record
Jan 07, 2009 |
4.8 / 5 (4) |
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The lowest ever levels of oxygen in humans have been reported in climbers on an expedition led by UCL (University College London) doctors. The world-first measurements of blood oxygen levels in climbers near the top of Mount ...
Drops in blood oxygen levels may be key to sudden death in some epilepsy patients
Nov 17, 2008 |
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A new study by researchers at UC Davis Medical Center suggests that the sudden unexplained deaths of some epilepsy patients may be a result of their brains not telling their bodies to breathe during seizures.
Light-activated treatments could solve MRSA problems after surgery
Sep 10, 2008 |
4.6 / 5 (5) |
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Killer dyes that can wipe out bacteria could help solve the superbug problems faced by surgical patients, scientists heard today at the Society for General Microbiology's Autumn meeting being held this week at Trinity College, ...
