(Phys.org) —A bizarre, pouched super-predator that terrorised South America millions of years ago had huge sabre-like teeth but its bite was weaker than that of a domestic cat, new research shows.
Archaeology
Jul 1, 2013
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(Phys.org) —In 2012, more than 3 million people had stents inserted in their coronary arteries. These tiny mesh tubes prop open blood vessels healing from procedures like a balloon angioplasty, which widens arteries blocked ...
Materials Science
Apr 30, 2013
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(Phys.org)—One of the great problems of evolution is to understand how the major features of organisms have changed over great swaths of time. How did limbs evolve from fins? How did bird feathers arise from scales?
Evolution
Feb 7, 2013
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When you get a cut, blood starts to flow from the wound. But very quickly, complex biochemical processes spring into action, creating a scaffolding of molecules to block the hole, and then building up an impervious clot to ...
Materials Science
Jan 9, 2013
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(Phys.org)—A University of British Columbia researcher has helped create a gel – based on the mussel's knack for clinging to rocks, piers and boat hulls – that can be painted onto the walls of blood vessels and stay ...
Biochemistry
Dec 11, 2012
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Scientists in California have shed light on a marine mystery: how diving mammals can hunt for food at great depths without getting the "bends," according to a new study.
Plants & Animals
Sep 19, 2012
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Ultrasound images, known as sonograms, have become a familiar part of pregnancy, allowing expectant parents a view of their unborn child. But new research at MIT could improve the ability of untrained workers to perform ...
Engineering
Jun 18, 2012
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Bionic eyes and limbs made television's six million dollar man an icon, but new research suggests our existing biological structure already exhibits a valuable electrical property. Scientists have found that arteries react ...
General Physics
Jan 30, 2012
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In the 1966 film "Fantastic Voyage," medical personnel board a submarine that shrinks to microscopic size and enters the bloodstream of a wounded diplomat to save his life.
General Physics
Jan 6, 2012
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(PhysOrg.com) -- A small turbine located inside a millimeters-wide human artery could harvest enough energy from blood flow to power implanted medical devices, such as pacemakers and drug-delivery pumps. The concept has been ...
