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PET-CT detects muscular lymphoma better than CT
PET-CT is better for early detection of muscular lymphoma than CT alone, according to a new study conducted by radiologists at the University of Minnesota in Minneapolis.   view more (2007-05-07)

Percutaneous radiofrequency ablation of liver tumors prove safe and effective
Percutaneous imaging guided radiofrequency ablation (RFA) of hepatocellular carcinoma is a safe and effective technique, with benefits such as reduced post-procedural pain and length of hospital stay.   view more (2007-05-07)

CT and MRI accurate for pre-transplant evaluation of patients with cirrhosis
CT and MRI are highly accurate at determining which patients would be optimal candidates for liver transplantation, says a recent study.   view more (2007-05-07)

MRS shows promise as noninvasive means to determine fetal lung maturity
MR spectroscopy (MRS) of choline levels shows promise as a marker of fetal lung maturity, according to a recent study conducted by researchers at the University of California-San Francisco.   view more (2007-05-07)

Study uses MRI to determine features of osteoarthrosis
Abnormalities in the ligaments found on the outside of the knee (lateral collateral ligament complex or LCLC) are commonly seen on MRI in patients with knee osteoarthrosis (OA).   view more (2007-05-07)

New technology useful for soft-tissue imaging in interventional radiology procedures
Soft-tissue cross-sectional imaging acquired on a flat panel C-arm fluoroscopic unit located in the interventional radiology area is feasible and useful for interventional radiology procedures, avoiding the necessity of sending patients out to a CT scanner.   view more (2007-05-07)

Sharp views show ground ice on Mars is patchy and variable
For the first time, scientists have found that water ice lies at variable depths over small-scale patches on the Red Planet. The discovery draws a much more detailed picture of underground ice on Mars than was previously available. The new results appear in the May 3, 2007, issue of the scientific... view more (2007-05-03)

X-ray holograms expose secret magnetism
Collaborative research between scientists in the UK and USA has led to a major breakthrough in the understanding of antiferromagnets, published in this week's Nature.   view more (2007-05-03)

Nanostructures can pose big measurement problems
Materials scientists will tell you that to best understand, characterize and eventually utilize the properties of a specific material, you have to be able to define how the atoms within it are arranged.   view more (2007-04-30)

Iowa State astrophysicists provide the eyes for new gamma ray telescope system
There's a "First Light Fiesta" in the works at Mt. Hopkins near Amado, Ariz. And Iowa State University astrophysicists will be among those enjoying the celebration of a new telescope system and all the science it will produce.   view more (2007-04-20)

Hotter than expected neutron star surfaces help explain superburst frequency
A new theoretical thermometer built from heavy-duty mathematics and computer code suggests that the surfaces of certain neutron stars run significantly hotter than previously expected. Hot enough, in fact, to at least partially answer an open question in astrophysics — how to explain the... view more (2007-04-16)

Mystery spiral arms explained?
Using a trio of space observatories, astronomers may have cracked a 45-year old mystery surrounding two ghostly spiral arms in the galaxy M106 (NGC 4258).   view more (2007-04-11)

Researchers move closer to switching nuclear isomer decay on and off
Livermore researchers have moved one step closer to being able to turn on and off the decay of a nuclear isomer.   view more (2007-04-06)

Supernova Imposter Goes Supernova
In a galaxy far, far away, a massive star suffered a nasty double whammy. On Oct. 20, 2004, Japanese amateur astronomer Koichi Itagaki saw the star let loose an outburst so bright that it was initially mistaken for a supernova. The star survived, but for only two years. On Oct. 11, 2006,... view more (2007-04-05)

Overfishing great sharks wiped out North Carolina bay scallop fishery
Fewer big sharks in the oceans led to the destruction of North Carolina's bay scallop fishery and inhibits the recovery of depressed scallop, oyster and clam populations along the U.S. Atlantic Coast, according to an article in the March 30 issue of the journal Science.   view more (2007-03-30)

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply
Fewer big sharks in the oceans mean that bay scallops and other shellfish may be harder to find at the market, according to an article in the March 30 issue of the journal Science, tying two unlikely links in the food web to the same fate.   view more (2007-03-30)

Gold, copper nanoparticles take center stage in the search for hydrogen production catalysts
X-ray studies at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are pointing the way to less costly and more efficient catalysts for improving the performance of fuel cells.   view more (2007-03-29)

Preventing obesity in children — research highlights physical activity levels
A British study, involving 5,500 children and published in the latest issue of PLoS Medicine, used accurate methods to measure the 'fat mass' of the children and the amount of physical activity they were taking.   view more (2007-03-20)

Robotic telescope unravels mystery of cosmic blasts
Scientists have used the world's largest robotic telescope to make the earliest-ever measurement of the optical polarisation* of a Gamma Ray Burst (GRB) just 203 seconds after the start of the cosmic explosion. This finding, which provides new insight into GRB physics, is published in Science today... view more (2007-03-19)

RNA enzyme structure offers a glimpse into the origins of life
Researchers at the University of California, Santa Cruz, have determined the three-dimensional structure of an RNA enzyme, or "ribozyme," that carries out a fundamental reaction required to make new RNA molecules.   view more (2007-03-16)

New blood tests for TB show exposure to disease while tuberculin skin tests do not
Two new interferon-gamma blood test assays to detect latent tuberculosis infection (LTBI) showed customers were exposed to a supermarket employee in Holland who had smear-positive tuberculosis, while traditional tuberculin skin tests (TST) did not, according to a large contact study.   view more (2007-03-15)

Mechanisms Involved with Tumor Relapse Identified
Researchers at Virginia Commonwealth University's Massey Cancer Center studying the interaction between the immune system and cancer cells have identified interferon gamma as one of the signaling proteins involved with tumor relapse.   view more (2007-03-14)

Gamma-ray birth cries suggest massive magnetic engines
Several times a week, astronomers detect the violent death cry of a massive star — an extraordinarily energetic release of gamma rays that takes place in just a matter of seconds to minutes, called a gamma-ray burst (GRB).   view more (2007-03-09)

Researchers discover gene essencial to cerebellum formation
A study published this week in the scientific journal PNAS provides new information on the origin of different cells in the cerebellum, an important component of the central nervous system found in all vertebrates, including humans, and the part of the brain that controls movement.   view more (2007-03-07)

Chandra examines Jupiter during new horizons approach
On February 28, 2007, NASA's New Horizons spacecraft made its closest approach to Jupiter on its ultimate journey to Pluto. This flyby gave scientists a unique opportunity to study Jupiter using the package of instruments available on New Horizons, while coordinating observations from both space-... view more (2007-03-02)
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