News Articles

While the body mass index (BMI) has been a popular yardstick for deciding who is at risk of obesity-related diseases because of their weight, since it is essentially a measure of density, identifying 'under-' and 'over-weight' risk groups, a more sophisticated approach than BMI is needed, says a new study.

Brookhaven National Laboratory scientists say your wine bottle may hold a secret to a new biofuel. Inside cork is an enzyme responsible for the formation of suberin, the woody, waxy, cell-wall substance found in cork.   It helps keep wine inside your bottle but in plants suberin controls water and nutrient transportation and keeps pathogens out.Adjusting the permeability of plant tissues by genetically manipulating the expression of this enzyme could lead to easier agricultural production of crops used for biofuels.

The 'heliosphere', the name given to the region of the sun's influence, may not have the comet-like shape predicted by existing models, say researchers.As the solar wind flows from the sun, it carves out a bubble in the interstellar medium. Models of the boundary region between the heliosphere and interstellar medium have been based on the assumption that the relative flow of the interstellar medium and its collision with the solar wind dominate the interaction. This would create a foreshortened "nose" in the direction of the solar system's motion, and an elongated "tail" in the opposite direction. 

If you think choosing a candy bar or a granola bar is totally a matter of free will, think again. A new study published in the Journal of Consumer Research argues that the choices we make to indulge ourselves or exercise self-control depend on how the choices are presented.University of Miami Assistant professor of marketing Juliano Laran tested subjects to determine how certain words and concepts affected their ability to control themselves when confronted with the choice of healthy or unhealthy food. He found that consumer choices were affected by the actions most recently suggested to them by certain key words.

For many years, so called 'junk RNA' was thought to be nothing more than cellular trash. Recent research, however, has called this view into question as scientists have discovered the importance of some small RNAs that generally contain more than 20 molecular units called nucleotides.

The Naval Research Laboratory's Ion Tiger has set an unofficial record for flight endurance by a hydrogen-powered fuel cell unmanned air vehicle, staying out for 23 hours and 17 minutes. The test flight took place on October 9th through 10th at Aberdeen Proving Ground. The Ion Tiger fuel cell development system team is led by NRL and includes Protonex Technology Corporation, the University of Hawaii, and HyperComp Engineering. The electric fuel cell propulsion system onboard the Ion Tiger has the low noise and signature of a battery-powered UAV, while taking advantage of hydrogen, a high-energy fuel. Fuel cells create an electrical current when they convert hydrogen and oxygen into water, with only water and heat as byproducts.

Researchers from the University of Gothenburg say they have discovered a new cancer gene related to adenoid cystic carcinoma,  a slow-growing but deadly form of cancer. The research group can now show that the gene is found in 100% of these tumors, which means that a genetic test can easily be used to make a correct diagnosis.The newly discovered cancer gene is what is known as a fusion gene, created when two healthy genes join together as a result of a chromosome change.

Parts of our genetic programs that determine programmed cell death in plants and animals are actually evolutionarily related and function in a similar way, according to an article in Nature Cell Biology.Research has previously believed that animals and plants developed different genetic programs for cell death. 

Children in english-speaking, letter-driven languages are diagnosed with dyslexia more commonly than those in Asia so is it a function of our alphabet?English dyslexia consists of a 'phonological disorder',  meaning that people with the condition have trouble detecting or manipulating the sound structure of oral language, which in turn leads to problems in mapping speech sounds onto lettersChinese-speaking children get a form of dyslexia but the disorder is distinctly different, and perhaps more complicated and severe, than that of English speakers. Those differences can even be seen in the brain and in the performance of Chinese children on visual and oral language tasks, according to a report in Current Biology.

40,000 or so spiders have been described, all of which have been thought to be strict predators that feed on insects or other animals, trapping their prey in elaborate webs or hunting them down directly. But researchers have now found one exception to this rule, a neotropical jumping spider known as Bagheera kiplingi and the first instance known to science of a spider that dines primarily on vegetarian fare, according to a report published in Current Biology.The spiders' veggie option of choice is so-called Beltian bodies, specialized leaf-tip structures produced by acacia shrubs. The Beltian bodies normally serve as a food reward for ants that live in hollow spines of the acacia and act as the plants' "bodyguards."

If you like big scallops for dinner, we have good news - ocean warming, at least in UK waters, has increased stocks of the great scallop Pecten maximus, according to a study published in Marine Biology.But further rises in water temperatures could have the opposite effect on scallops and better management of these fisheries may be needed to protect sensitive seabed habitats, according to the analysis of 20 years of data by scientists at Bangor University and the Universities of York and Liverpool.

A new thesis from the Sahlgrenska Academy at the University of Gothenburg, Sweden says elite athlete injuries could be reduced if players perform injury-preventing strength training  with supervision.   About half of Swedish elite volleyball players suffer at least one injury per season.