Rensselaer researchers have developed an automated system, called RPI-Trace3D, that can swiftly map capillaries in a live tumor. What used to take days of manually tracing the vessels, now takes two minutes. The diagnostic tool, in use at Harvard Medical School and at Northeastern University, is a boon to oncologists who aim to understand how blood vessels form in tumors.
For the first time, medical scientists can quickly and precisely measure blood vessel properties to quantify the effects
A new study led by University of Colorado at Boulder researchers indicates Mars has been primarily a cold, dry planet following its formation some 4 billion years ago, making the possibility of the evolution of life there challenging at best.
Led by CU-Boulder doctoral candidate Teresa Segura and her adviser, Professor Owen B. Toon, the team used Mars photos and computer models to show that large asteroids or comets hit the planet some 3.5 billion years ago. These impacts apparently occurre
Authors of a research letter in this week’s issue of THE LANCET provide further evidence that the effect of sunlight on neurotransmitters in the brain plays a significant role in seasonal mood disorders.
The success of phototherapy (ultraviolet light therapy to stimulate brain neurotransmitter activity) and drugs that prevent the reuptake of the neurotransmitter serotonin have suggested that serotonin itself has a role in the development of seasonal depression. However, concentrations
Findings with lab mice may lead to novel cholesterol-lowering drugs against heart disease
Two people eat the same egg, cheese and ham muffin for breakfast, yet one absorbs significantly more cholesterol into his or her blood than the other. Why?
The answer, and all of its implications for combating heart disease, remains stubbornly hidden within our DNA. In recent genetic studies with lab mice, however, researchers at The Rockefeller University have begun to close in on the culpr
On Thursday 5 December 2002 an ESA-coordinated demonstration in medical telediagnostics was carried out on board the French hospital ship Sirocco.
In a project initiated by ESA in association with the Department of Space Medical Physiology at the University of Tours, the Vision and Robotics Laboratory at Bourges, Sinters Toulouse, and CNES, this was the first real-time demonstration of the use of a teleoperated robotic arm for echographic diagnosis in a remote situation.
The object
For several years it has been widely believed that increased ultraviolet-B radiation because of thinning of atmospheric ozone was a major culprit in deforming amphibian offspring and dwindling populations.
Now two new studies cast serious doubt on that assumption, and the lead author of one says the belief could have had negative impacts on efforts to save amphibians.
“All of the concentration on UV might have misdirected our conservation and research priorities,” said Wendy Palen,