Sandia Patents Extreme Ultraviolet Source
The Sandia invention enables research development of EUV lithography, patterning faster and more memory-dense microchips. This light source is brighter than synchrotron radiation and takes less space.
Science News for September 16, 1997
Archaeologists Discover "Birthday Surprise" For Roman Emperor Augustus
Researchers uncovered a sculpted marble head of Emperor Augustus, measuring slightly larger than life, in near-perfect condition. The discovery was made by an excavation team led by University of Cincinnati archaeologist Brian Rose, who recognizes the statue due to its distinctive hairstyle and facial features.
New Test May Improve Treatment Of Kidney Disease
A new test developed by Johns Hopkins researchers uses white blood cells to predict which medications are most effective for each patient with kidney disease. The study found a wide range of responses among patients, suggesting that such tests might assist physicians in developing personalized treatment strategies.
Hunt For Early Heart Attack Genes Begins
A team of researchers will examine the blood samples and medical histories of 2,000 people who have experienced an early heart attack. The goal is to locate and determine the structure and function of genes that contribute to heart disease.
Out Of Pure Light, Physicists Create Particles Of Matter
Scientists successfully converted energy in the form of light into matter, creating electrons and positrons. The experiment used high-energy electrons and photons to produce an incredible amount of power in a tiny area, marking a major breakthrough in understanding quantum electrodynamics.
Largest Tyrannosaur Fossil Unearthed In Montana
A nearly complete Tyrannosaurus rex fossil was discovered in northeastern Montana, measuring over 52 inches. The fossil exceeds all known measurements of the dinosaur and is believed to be one of the largest carnivores on the planet.
Cancer Protection Compound Abundant In Broccoli Sprouts
Researchers have identified a new source of sulforaphane, a compound that helps mobilize the body's natural cancer-fighting resources and reduces cancer risk. Studies show that consuming broccoli sprouts daily may provide similar chemoprotection as eating large amounts of mature broccoli weekly.
SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateSep 16, 1997
University Of Washington Scientists Look For Cellular Clues To Explain How Estrogen Replacement Therapy May Protect Against Alzheimer's Disease
University of Washington scientists investigate how estrogen replacement therapy protects against Alzheimer's disease by promoting neuron survival and protecting against toxic substances. They found that estrogen may activate an enzyme to increase the expression of neurotransmitter genes, facilitating learning and memory.
Researchers Find Association Between Alzheimer's Gene And Mental Impairment After Cardiac Surgery
A study of 65 patients found that those with the Alzheimer's-related gene apoliprotein E-4 (APOE-4) are more susceptible to mental impairment after open heart surgery. The researchers believe this is due to the variant gene's inability to repair nerve cells efficiently.
How They Know Where They're Going: New Research On Cabbies Shows That The Brain's Right Hippocampus Is Key For Navigation
A study of 11 London taxi drivers reveals the right hippocampus is activated when recalling complex routes, but not during other types of memory recall. The brain area is specially recruited for route recall, supporting human navigation and spatial cognition.