A team of medical experts led by a Virginia Commonwealth University anesthesiologist and a thoracic surgeon from the University of Kentucky has established a set of clinical guidelines to help physicians decrease the need for blood transfusions in high-risk patients during cardiac operations.
University of California, Irvine researchers have developed the first images of the physical changes in brain cells thought to underlie memory, a discovery that is already uncovering clues about memory loss linked to cognitive disorders.
The small ice caps of Mont Blanc and the D?me du Go?ter are not melting, or at least, not yet. This is what CNRS researchers1 have announced in the Journal of Geophysical Research.
When it comes to growing cells in a lab, technique matters. A new Brown University study shows that nerve cells grown in three-dimensional cultures use 1,766 genes differently compared to nerve cells grown in standard two-dimensional petri dishes.
Rheumatology researchers have discovered that a well-known cell receptor sends a signal to dampen the immune system.
Tropical deforestation is the source of nearly a fifth of annual, human-induced emissions of heat-trapping gases to the atmosphere. Recent studies by Woods Hole Research Center scientists demonstrate that during years of severe drought, tropical rainforest fires can double emissions from tropical forests.
Circles, slaloms, figure eights, and loop-the-loops ? biologists studying the motion of Listeria monocytogenes sensed that these paths were related, but they didn?t have a good way to define what fit in and what didn?t. A remarkably simple new mathematical description, published online in the Proceedings of the National Academy of Sciences [Abstract], reproduces all these shapes with just one pair of equations and only two key variables.
The outbreak of severe acute respiratory syndrome (SARS) in 2002 was a loud wake-up call for researchers studying infectious diseases. SARS infected over 8,000 people, killed 10 percent of those infected, and weakened most with pneumonia.
A smokeless cannabis-vaporizing device delivers the same levels of THC, the active therapeutic chemical, with the same biological effects as smoking cannabis without the harmful toxins created by burning cannabis, according to UCSF researchers.
Detecting the molecular structure of a tiny protein using nuclear magnetic resonance (NMR) currently requires two things: a million-dollar machine the size of a massive SUV, and a large sample of the protein under study.