Add BrightSurf on Google Email

Science News for April 28, 2010


Synthetic enzymes could help ID proteins

Researchers at Rice University have developed a synthetic enzyme that can selectively bind with proteins and attach tags for identification. The method has shown promise in identifying signaling proteins involved in health and disease, including those related to cancer.

SourceRice University·JournalJournal of the American Chemical Society·DateApr 28, 2010

Study finds high rates of at-risk drinking among elderly adults

A recent study by researchers at UCLA Health Sciences has found that over a third of drinkers aged 60 and older consume excessive amounts of alcohol, posing health risks. The study also highlights demographic factors, such as age, education level, and income, that contribute to at-risk drinking among the elderly.

SourceUniversity of California - Los Angeles Health Sciences·JournalJournal of General Internal Medicine·DateApr 28, 2010

Locating tsunami warning buoys

Researchers developed a mathematical model that identifies the top 10 locations for tsunami detection buoys and sea-level monitors in the Indian Ocean. This could save time and money, as well as provide warning to more people in the event of a devastating tsunami.

SourceInderscience Publishers·JournalInternational Journal of Operational Research·DateApr 28, 2010

A clamp for emerging flu viruses

Scientists from Freiburg and Berlin have unraveled the secret of the Mx protein, which plays a crucial role in inhibiting influenza virus replication. The Mx protein forms a ring-structured macromolecular network that restrains and deactivates viral components, providing a defense mechanism against new flu viruses.

SourceHelmholtz Association·JournalNature·DateApr 28, 2010

How nerve cells distinguish odors

Researchers at Heidelberg University Hospital discovered that inhibiting communication between nerve cells accelerates odor discrimination in mice. The study confirmed the function of lateral inhibition, which enables quick and reliable recognition of similar smells, using genetic manipulation and electrophysiological measurements.

Twice as many Swedes as Brits survive lung cancer

A study comparing lung cancer survival rates in England, Norway, and Sweden found that Swedes had the highest survival rates, with 16% of women diagnosed surviving five years. The difference in death rates was largely concentrated in the first year after diagnosis, suggesting a possible link between treatment activity and outcomes.

SourceBMJ Group·JournalThorax·DateApr 28, 2010

Melting icebergs causing sea level rise

Scientists have discovered that changes in floating ice are causing sea levels to rise, resulting in a 2.6% increase of global sea levels. The study found that the loss of floating ice amounts to a sea level rise of 49 micrometers per year.

SourceUniversity of Leeds·JournalGeophysical Research Letters·DateApr 28, 2010

Barn owl auditory spatial cues and more

Researchers investigated the role of low-frequency auditory spatial cues in barn owls' ability to localize sounds. They found that these cues dominate azimuth representation, while high-frequency cues dominate elevation representation. These findings have implications for understanding sound localization in other species, including hum...

SourcePLOS·JournalPLOS ONE·DateApr 28, 2010

It's electrifying

Researchers at JILA have demonstrated a new tool for controlling ultracold gases and ultracold chemistry by applying small electric fields. The study shows that the electric field spurs a dramatic increase in chemical reactions, with molecules reacting faster when approaching each other head-to-tail parallel to the applied field.

Flag has ladies all of a flutter

Scientists at the University of Manchester have discovered how male common snipes use their outer tail feathers to produce a highly seductive drumming sound. By observing deformations in the feathers as they produce the sound, researchers found that the feathers flutter like flags in the wind.

SourceUniversity of Manchester·JournalJournal of Experimental Biology·DateApr 28, 2010

New microscopy technique reveals mechanics of blood cell membranes

Researchers developed a novel microscopy technique that reveals the mechanics of blood cell membranes, leading to a better understanding of deformability and its relation to morphology. This discovery has important implications for screening and treatment of blood-cell-morphology diseases such as malaria and sickle-cell disease.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateApr 28, 2010

Study shows why cholesterol damages arteries

Researchers have identified the molecular trigger for inflammation in large blood vessels, finding that cholesterol crystals activate an inflammasome complex within immune cells. This leads to a catastrophic chain reaction of inflammatory mediators and immune cell invasion, potentially destabilizing vessel walls.

SourceUniversity of Bonn·JournalNature·DateApr 28, 2010

Curcumin nanoparticles 'open up' resistant cancers

Researchers found that curcumin nanoparticles, delivered via nanoparticles, increased the sensitivity of resistant ovarian cancer cells to chemotherapy and radiation. The treatment enables lower doses of cisplatin and radiation, improving therapeutic outcomes without increasing toxicity.

SourceBMC (BioMed Central)·JournalJournal of Ovarian Research·DateApr 28, 2010

Scientists probe Earth's core

Researchers at the University of Calgary have made a groundbreaking discovery about the Earth's core by analyzing seismic wave speed. The study reveals that the outer core is well mixed and lacks stratification, providing new insights into the planet's magnetic field and formation.

SourceUniversity of Calgary·JournalPhysics of The Earth and Planetary Interiors·DateApr 28, 2010