Add BrightSurf on Google Email

Science News Archive March 2010 - Page 7


Page 7 of 27

Study: Teen bloggers show little risky behavior online

A study of 100 teen bloggers found that most used blogs to discuss positive activities like studying, spending time with family, and going to church. The teens' blog posts showed little evidence of risky behaviors, with only a few instances of complaining about boredom or feeling negative emotions.

SourceOhio State University·JournalChild and Adolescent Social Work Journal·DateMar 24, 2010

Older adults remember the good times

Older adults remember past experiences positively due to strong brain connections between emotion and memory regions. In contrast, young adults lack these connections, making it harder to recall positive events.

SourceElsevier·JournalCortex·DateMar 24, 2010

Zebrafish study with human heart implications

Researchers identify zebrafish heart cell population that regenerates cardiac muscle cells, challenging traditional view of stem cells in regeneration. Human hearts cannot replicate this process, but finding could provide insight into hibernating mammalian cardiomyocytes and potential regeneration strategies.

SourceSalk Institute·JournalNature·DateMar 24, 2010

Dietary supplement speeds silver cyclists

Researchers found that arginine supplements improved the cycling ability of older cyclists by increasing their anaerobic threshold. The study, published in Journal of the International Society of Sports Nutrition, showed a significant increase in exercise capacity after just one week of supplementation.

SourceBMC (BioMed Central)·JournalJournal of the International Society of Sports Nutrition·DateMar 23, 2010

Leptin therapy in animal models shows promise for type 1 diabetes, UT Southwestern study finds

Researchers at UT Southwestern Medical Center found that leptin administration showed better management of blood-sugar variability and lipogenesis, the conversion of simple sugars into fatty acids. Leptin therapy also reduced food intake and increased lean body mass in non-obese type 1 diabetic mice.

SourceUT Southwestern Medical Center·JournalProceedings of the National Academy of Sciences·DateMar 23, 2010

New dinosaur from Utah's red rocks

A new species of plant-eating dinosaur, Seitaad ruessi, has been discovered in the Navajo Sandstone of Utah's red rocks. The dinosaur lived around 185 million years ago during the Early Jurassic Period and was part of a group known as sauropodomorphs, which includes giant sauropods with long necks and tails.

SourceUniversity of Utah·JournalPLOS ONE·DateMar 23, 2010

New approach to water desalination

Researchers at MIT and Korea have developed a new approach to desalination called ion concentration polarization that can remove contaminants, viruses, and bacteria while producing fresh water. The system is small, portable, and efficient, making it suitable for disaster sites or remote locations.

SourceMassachusetts Institute of Technology·JournalNature Nanotechnology·DateMar 23, 2010

Researchers identify strategy for passing tanning bed legislation

Researchers found successful advocates collaborate with local and national organizations, lobbyists, and sponsoring legislators to aid in tanning bed bill passage. Strong lobbying efforts by the tanning industry hindered passage, while knowledgeable healthcare providers and public health advocates were key resources.

SourceBoston University School of Medicine·JournalJournal of the American Academy of Dermatology·DateMar 23, 2010

Chemotherapy plus synthetic compound provides potent anti-tumor effect in pancreatic cancers

Researchers at UT Southwestern Medical Center found that a synthetic compound called JP1201, mimicking the action of a 'death-promoting' protein, can enhance chemotherapy's efficacy and prolong life in mice with pancreatic cancer. The study demonstrates promising results for potential therapies against this devastating disease.

SourceUT Southwestern Medical Center·JournalCancer Research·DateMar 23, 2010

Proteins may point to alcohol use test

Researchers at Penn State College of Medicine have identified a set of 17 proteins in the blood that accurately predict alcohol usage 90% of the time. These proteins can distinguish between excessive and responsible drinking levels, offering a potential diagnostic test for alcohol consumption.

SourcePenn State·JournalBiological Psychiatry·DateMar 23, 2010